JP4255387B2 - Adhesive tape or sheet and paper diaper - Google Patents

Description

  The present invention relates to an adhesive tape or sheet and a paper diaper. More specifically, the present invention is folded in a form that can be easily deployed, and the overall length is reduced without shortening the length that is unfolded. The present invention relates to an adhesive tape or sheet that can be shortened, and a paper diaper provided with the adhesive tape or sheet.

  A paper diaper (particularly a pants-type paper diaper) is provided with a constraining adhesive tape or sheet for holding it in a rolled state when discarded. As such an adhesive tape or sheet for restraint, conventionally, the free end portion is a fastening portion used when discarding the diaper, and the fastening portion is positioned beyond the opening edge of the waist portion when extended. And has a length to be obtained, and is folded in a three-fold state composed of three layers of a region including a fixing portion, a region including the fastening portion, and an intermediate region connecting both the regions (see Patent Document 1) The tape-like support provided with a fixing portion for fixing to the adherend surface on the surface of one of the end portions is folded in half so that the fixing portion is located on the outer side, and the two-folded There has been proposed a structure in which the above support is folded or wound at least once in the same direction sequentially from the fold side (see Patent Document 2).

No. 8-10305 Japanese Patent Laid-Open No. 9-272845

  Since disposable diapers are discarded after use (that is, disposable type), the constraining adhesive tape or sheet is required to be shorter from the viewpoint of reducing the amount of dust. However, if the length of the unfolded (development length) becomes short when unfolded, the disposable diaper will be discarded and the usability will be reduced, and the compact and small rounded state will be maintained. Becomes difficult. Moreover, when it folds many times, the thickness in the folded state will become thick, and the usability | use_condition at the time of use of a paper diaper will fall. Therefore, it is difficult to shorten the entire length of the constraining adhesive tape or sheet affixed to the paper diaper.

  Further, the cost can be reduced by shortening the entire length of the restraining pressure-sensitive adhesive tape or sheet. From this viewpoint, it is required to shorten the whole length of the restraining pressure-sensitive adhesive tape or sheet. .

  Furthermore, as for the restraint pressure-sensitive adhesive tape or sheet affixed to the paper diaper, conventionally, those having a layer structure of at least three layers are widely used, and therefore, the thickness in the folded state is thick, In particular, a constraining adhesive tape or sheet that is not formed by a single support and has a configuration in which two supports are joined together is not only thick but also hard. . Therefore, it is required to further reduce the thickness of the constraining adhesive tape or sheet in the folded state without shortening the unfolded length when unfolded.

Accordingly, an object of the present invention is to provide an adhesive tape or sheet that is folded in a form that can be easily deployed and that can shorten the overall length without shortening the deployed length when deployed. It is to provide.
Another object of the present invention is to provide an adhesive tape or sheet that can be further reduced in thickness when folded.
Still another object of the present invention is to provide an adhesive tape or sheet that can be suitably used as a constraining adhesive tape or sheet for holding a disposable diaper in a rolled state.

  Another object of the present invention is to provide a disposable diaper that contributes to reducing the amount of waste and can easily maintain a rounded state when discarded.

  As a result of intensive studies to solve the above problems, the present inventors have shortened the unfolding length that expands and unfolds when the adhesive tape or sheet is folded in a specific configuration when folded in a specific configuration. It was found that the entire length of the pressure-sensitive adhesive tape or sheet can be shortened without being made, and can be easily developed into a long shape. In addition, when the adhesive tape or sheet folded in such a form is attached to a paper diaper, it can be easily held in a rounded state when the paper diaper is discarded, and can contribute to the reduction of waste. I found. The present invention has been completed based on these findings.

That is, the present invention is a state in which an adhesive layer, a temporary fixing layer, a release treatment layer are formed at predetermined sites on both surfaces of a long support, and two ends are oriented in different directions. It has a configuration that is folded by folding it in a bellows shape twice or more, and a knob portion is formed at one end, and no knob portion is formed by pulling the knob portion. An adhesive tape or sheet that can be elongated from the end in the direction of the first crease from the end, and the second from the end where the knob is not formed The fold portion of the fold portion is folded in a state protruding from the end portion where the knob portion is not formed, and the length X of the portion on the end portion side where the knob portion is not formed is The first crease from the end side where no is formed 10 to 30% of the length Y of the portion between the second crease portion, and the length Z of the portion on the end side where the knob portion is formed is The length Y of the part between the first crease part and the second crease part from the end side where no pin is formed, and the length X of the part on the end side where the knob part is not formed The pressure-sensitive adhesive tape or sheet is characterized by having a length of 95 to 100% with respect to the difference between and the following (a) to (d).
(A) The structure which has the adhesive layer for affixing on articles | goods on the surface of the site | part of the edge part side in which the knob part is not formed (b) The 1st crease | fold from the edge part side in which the knob part is not formed The portion on the side of the end portion where the knob portion is not formed in the portion between the first crease portion and the second fold portion is not overlapped with the portion on the end portion side where the knob portion is not formed (C) Surface between the crease portions at the end portion portion where the knob portion is formed (c) A structure having a temporary fixing layer to be affixed to the article at least partially on the exposed surface until it is developed into a long shape. And having a pressure-sensitive adhesive layer for attaching to an article in a form in which the knob portion is formed, and an end portion side portion where the knob portion is formed and an end portion side portion where the knob portion is formed The part between the creases facing each other is mold release (D) When it has a structure folded by folding it four times or more in a bellows shape, the parts between the folds facing each other are peeled off. Tailored configuration

As the pressure-sensitive adhesive tape or sheet of the present invention, a pressure-sensitive adhesive layer, a temporary fixing layer, a release treatment layer are formed at predetermined sites on both surfaces of the long support, and the two end portions are in different directions. It has a configuration in which it is turned and folded by bending it twice into an S-shape, and a knob is formed at one end. By pulling the knob, the knob is An adhesive tape or sheet that can be elongated in the direction of the first crease from the end that is not formed, and the end that is not formed with a knob The second crease portion is folded in a state of protruding from the end portion where the knob portion is not formed, and the length X of the portion on the end portion side where the knob portion is not formed 1 from the end side where the knob is not formed 10 to 30% of the length Y of the part between the crease part of the eye and the second crease part, and the length of the part on the end side where the knob part is formed Z is the length Y of the part between the first crease part and the second crease part from the end part side where the knob part is not formed, and the end part side where the knob part is not formed. It is preferable that the length is 95 to 100% with respect to the difference from the length X of the part, and the following structures (a1) to (c1) are included.
(A1) Configuration having a pressure-sensitive adhesive layer for affixing to an article on the surface of an end portion side where no knob portion is formed (b1) Knob portion in a portion between crease portions when folded into an S shape On the surface of the end portion side where no pin is formed, on the exposed surface that is not superimposed on the end portion portion where the knob portion is not formed, at least partially until the article is developed into a long shape (C1) In a form in which the knob portion is formed on the surface between the crease portions when folded into an S-shape at the end portion side portion where the knob portion is formed. An S-shape having a pressure-sensitive adhesive layer for attaching to an article and facing an end side portion where the knob portion is formed and an end side portion where the knob portion is formed The part between the creases when folded into Configuration keyed peelably by treatment layer

  Further, on the surface of the part side on the end part side where the knob part is not formed in the part between the first crease part and the second crease part from the end part side where the knob part is not formed, It is preferable that the temporary fixing layer is not formed at the end portion on the second fold portion side.

  The support preferably has a structure formed continuously from one end to the other end, and is particularly preferably formed of a polyolefin resin.

  The present invention is also a paper diaper provided with a constraining pressure-sensitive adhesive tape or sheet for holding the paper diaper in a rolled state, wherein the pressure-sensitive adhesive tape or sheet is used as the constraining pressure-sensitive adhesive tape or sheet. Is a disposable diaper characterized by the fact that is used.

  In the paper diaper, the binding adhesive tape or sheet is affixed in a form that can be developed in the direction of the opening of the waist portion, in a portion located in the vertical width region of the waist portion on the back side surface of the paper diaper. Preferably it is. As such a paper diaper, a pants-type paper diaper is suitable.

  According to the pressure-sensitive adhesive tape or sheet of the present invention, the entire length can be shortened without shortening the unfolded length when folded and unfolded in a form that can be easily unfolded. Furthermore, the thickness when folded can be further reduced. Therefore, it can be suitably used as a constraining adhesive tape or sheet for holding a paper diaper in a rolled state.

  Moreover, according to the paper diaper of the present invention, it contributes to a reduction in the amount of dust, and it is possible to easily maintain a rounded state when discarded.

Embodiments of the present invention will be described below in detail with reference to the drawings as necessary. In addition, the same code | symbol may be attached | subjected to the same member, a site | part, etc.
[Adhesive tape or sheet]
FIG. 1 is a schematic sectional view showing an example of the pressure-sensitive adhesive tape or sheet of the present invention. In FIG. 1, 1 is an adhesive tape or sheet (sometimes referred to as “adhesive tape”), 1a is an end portion on which a knob portion is formed (sometimes referred to as “knob portion forming end portion”), and 1b is a knob. 1c is one end from the side where the knob part non-formation end 1b is bent when folded in an S-shape twice. The crease part of the eye (sometimes referred to as “first crease part”), 1d is the second crease part from the knob part non-formation end part 1b side when folded twice in an S-shape (“ 2 may be referred to as a “second fold portion”, 2 is a support, 2 a is a portion of the support 2 on the end side where the knob portion is formed (sometimes referred to as “deployment portion”), and 2 b is a support. 2 is a part on the end side where the knob part is not formed (sometimes referred to as “applying part”). 2c is a portion between the crease portions of the support 2 (sometimes referred to as “1-2 crease portion portion”), 3a1 is an adhesive layer (sometimes referred to as a “development adhesive layer”), 3a2 is a release treatment layer (sometimes referred to as “upper release treatment layer”), 3a3 is a knob print layer, 3b1 is an adhesive layer (sometimes referred to as “sticking adhesive layer”), and 3c1 is A temporary fixing layer, 3c2 is a release treatment layer (sometimes referred to as "internal release treatment layer"), and 4 is a knob portion. Moreover, X is the length of the sticking site | part 2b, Y is the length of the site | part 2c between 1-2 fold parts, Z is the length of the expansion | deployment site | part 2a.

  Specifically, in the pressure-sensitive adhesive tape 1, the support 2 is a long sheet having a configuration in which the unfolded part 2a, the 1-2 crease part 2c, and the sticking part 2b are arranged in series in this order. -In the two fold portions of the first fold portion 1c and the second fold portion 1d so that the second fold portion 1d of the portion 2c between the fold portions protrudes from the end portion 1b where the knob portion is not formed. It has a configuration in which it is folded twice by bending it into an S shape by bending. In addition, the boundary part of the expansion | deployment site | part 2a and the site | part 2c between 1-2 crease parts is the 2nd fold part 1d, and the boundary part of the site | part 2c between 1-2 crease part and the sticking site | part 2b is a 1st crease part. 1c. The part located at the end of the development part 2 a is a knob part 4. Further, in the development part 2a, a development pressure-sensitive adhesive layer 3a1 to be attached to the article is formed on the surface on the side between the first and second crease parts 2c in a form in which a knob part is formed. An upper release treatment layer 3a2 is formed on the entire surface, and a knob portion printing layer 3a3 is formed at a portion located in the knob portion 4. In the inter-crease portion 2c, the temporary fastening layer for sticking to the article until it is partially expanded on the exposed surface that is not superimposed on the sticking portion 2b. The inner mold release treatment layer 3c2 is entirely formed on the surface on the development site 2a side. In the sticking site 2b, a sticking pressure-sensitive adhesive layer 3b1 for sticking to an article is entirely formed on the surface side surface.

  Therefore, the development part 2a is bonded to the 1-2 crease part 2c so as to be peelable. On the other hand, the 1-2 crease part 2c and the pasting part 2b are merely in direct contact with each other and overlapped, and are not pasted by the adhesive layer or the like. In addition, the temporary fixing layer provided in the portion 2c between the 1-2 folds is provided to be temporarily attached to the article and temporarily fixed until it is expanded in a long shape, and is expanded in a long shape. In some cases, it can be easily peeled off from the article. Therefore, the adhesive tape 1 can be unfolded in a long shape in the direction from the knob part non-formation end part 1b in the sticking part 2b to the first fold part 1c by pulling the knob part 4. For example, in a state where the adhesive tape 1 in a folded state is affixed to an article using the adhesive layer 3b1 at the application site 2b and the temporary fixing layer 3c1 at the site 2c between the 1-2 folds (at this time) The affixing part 2b is fixed to the article by affixing, and the part 2c between the 1-2 crease parts is temporarily fixed to the article until it is unfolded into a long shape). By pulling in the direction from the crease part 1d to the knob part forming end part 1a or the knob part 4 (that is, the right direction in FIG. 1), the interface between the unfolded part 2a and the part 1-2c between the crease parts, and 1 -2 The peeling occurs at the interface between the part 2c between the folds and the article, and only the pasting part 2b is firmly fixed to the article, and can be easily developed in a long shape. Of course, when the intermediate part 2c is peeled from the article, the article is not damaged such as breakage. The direction in which the elongated portion is developed is the direction from the knob portion non-forming end portion 1b to the first fold portion 1c (the right direction in FIG. 1), and the first fold of the pasting portion 2b or the pasting portion 2b. Starting from the end on the part 1c side.

  Since FIG. 1 and the like are illustrated so that the layer configuration is clear, the first fold portion 1c and the second fold portion 1d have a width in the thickness direction, and the upper and lower portions of the width are two places. Although it is expressed in a folded form, it actually becomes a folded form in various forms such as a U-shaped form and a V-shaped form depending on the method of folding. .

  As the pressure-sensitive adhesive tape or sheet of the present invention (sometimes referred to as “foldable pressure-sensitive adhesive tape or sheet”), as shown in FIG. It may have a configuration folded by bending twice into a shape, and as shown in FIG. 2, the two ends are oriented in different directions to form a bellows shape, an accordion shape ( The shape of the accordion expansion / contraction part) may be folded by folding four times or more in a zigzag shape.

  FIG. 2 is a schematic cross-sectional view showing another example of the pressure-sensitive adhesive tape or sheet of the present invention, and FIG. 2 (a) shows a bellows shape and an accordion shape with two end portions facing different directions. FIG. 2 (b) shows an example of a structure folded by bending it into four in a zigzag shape. FIG. 2 (b) shows a bellows shape, an accordion shape, or a zigzag fold shape with two ends facing different directions. The example of the structure folded by bending 6 times is shown. In FIG. 2, 2d is a portion between the development site 2a and the application site 2b of the support 2, 3d1 is a temporary adhesive layer, 3d2 is a temporary adhesive layer, 3d3 is a temporary adhesive layer, and 3d4 is a temporary application. Agent layer, 3d5 is a temporary adhesive layer, 3d6 is a temporary adhesive layer, 3d7 is a temporary adhesive layer, and 3d8 is a temporary adhesive layer. 1a, 1b, 2, 2a, 2b, 3a1, 3a2, 3a3, 3b1 Reference numerals such as 3c1, 3c2, and 4 are the same as described above.

  Thus, the foldable adhesive tape or sheet of the present invention is “a configuration in which the two ends are oriented in different directions and folded in a bellows shape, an accordion shape, or a zigzag fold shape twice or more. At the same time, a knob is formed at one end, and the second fold is projected from the end where the knob is not formed, protruding from the end where the knob is not formed. Configuration ". In addition, as described above, the number of times of folding at the time of “folding into a bellows shape, an accordion shape or a zigzag shape twice or more” is not particularly limited, and the use purpose, the length when folded, and a long shape are developed. The length can be appropriately selected according to the length of the case, the thickness when folded, and the like. For example, as shown below, when the folding adhesive tape or sheet is used as an adhesive tape or sheet for restraining a paper diaper, the number of times of folding at the time of “folding twice or more in a bellows shape, an accordion shape or a zigzag shape” Although it is preferable that it is S-shaped twice, of course, it may be four times or more (for example, four times or six times).

  Further, in the foldable adhesive tape or sheet, “the two end portions are oriented in different directions and are folded by folding in a bellows shape, an accordion shape or a zigzag shape twice or more, and one end The knob part is formed in the part, and the second crease part from the end part side where the knob part is not formed is folded in a state protruding from the end part where the knob part is not formed. " As a result of folding, the second fold portion from the end portion side where the knob portion is not formed may be configured to protrude from the end portion where the knob portion is not formed. As a result of folding the second fold part from the end side where the knob part is not formed protruding beyond the end part where the knob part is not formed, the knob part is not formed. The configuration may be such that the second fold portion from the end side protrudes beyond the end portion where the knob portion is not formed, and the end portion where the knob portion is not formed forms the knob portion. As a result of folding in a state of being located on the near side from the second fold portion from the end portion that is not formed, the second fold portion is formed from the end portion side where the knob portion is not formed. The structure which will be in the state which protruded from the edge part which does not exist may be sufficient.

That is, the foldable pressure-sensitive adhesive tape or sheet of the present invention has a pressure-sensitive adhesive layer, a temporary fixing layer, and a release treatment layer formed at predetermined sites on both surfaces of a long support, and has two end portions. It is in a state facing in a different direction, and has a configuration that is folded by folding it twice or more in a bellows shape, and a knob portion is formed at one end, and by pulling the knob portion, An adhesive tape or sheet that can be elongated in the direction from the end where no knob is formed to the first crease from the end, and is not formed The second fold portion from the end side has a configuration that is folded in a state of protruding from the end portion where the knob portion is not formed, and has the following configurations (a) to (d) Have.
(A) The structure which has the adhesive layer for affixing on articles | goods on the surface of the site | part of the edge part side in which the knob part is not formed (b) The 1st crease | fold from the edge part side in which the knob part is not formed The portion on the side of the end portion where the knob portion is not formed in the portion between the first crease portion and the second fold portion is not overlapped with the portion on the end portion side where the knob portion is not formed (C) Surface between the crease portions at the end portion portion where the knob portion is formed (c) A structure having a temporary fixing layer to be affixed to the article at least partially on the exposed surface until it is developed into a long shape. And having a pressure-sensitive adhesive layer for attaching to an article in a form in which the knob portion is formed, and an end portion side portion where the knob portion is formed and an end portion side portion where the knob portion is formed The part between the creases facing each other is mold release (D) When it has a structure folded by folding it four times or more in a bellows shape, the parts between the folds facing each other are peeled off. Tailored configuration

As shown in FIG. 1, the foldable pressure-sensitive adhesive tape or sheet has a pressure-sensitive adhesive layer, a temporary fixing layer, and a release treatment layer formed at predetermined sites on both surfaces of the long support. The two ends are oriented in different directions and folded by bending twice in an S-shape, and a knob is formed at one end. An adhesive tape or sheet that can be stretched in an elongated shape from the end where no knob is formed by pulling in the direction of the first fold from the end. The second fold portion from the end portion that is not formed has a configuration in which the second fold portion protrudes from the end portion where the knob portion is not formed, and the following (a1) to (c1) ) Is preferable.
(A1) Configuration having a pressure-sensitive adhesive layer for affixing to an article on the surface of an end portion side where no knob portion is formed (b1) Knob portion in a portion between crease portions when folded into an S shape On the surface of the end portion side where no pin is formed, on the exposed surface that is not superimposed on the end portion portion where the knob portion is not formed, at least partially until the article is developed into a long shape (C1) In a form in which the knob portion is formed on the surface between the crease portions when folded into an S-shape at the end portion side portion where the knob portion is formed. An S-shape having a pressure-sensitive adhesive layer for attaching to an article and facing an end side portion where the knob portion is formed and an end side portion where the knob portion is formed The part between the creases when folded into Configuration keyed peelably by treatment layer

  In the foldable pressure-sensitive adhesive tape or sheet of the present invention, the length X of the end portion side (attachment portion) where the knob portion is not formed is the first fold line from the end portion side where the knob portion is not formed If it is shorter than the length Y of the site | part (it may be called a "paste side intermediate site") between a part and the 2nd crease part, it will not restrict | limit, For example, it selects from the range of 5-95% However, if the length X of the affixed part is too short, the adhesiveness of the foldable adhesive tape or sheet to the article decreases, and if it is too long, the overall length of the foldable adhesive tape or sheet is shortened. Sexuality decreases. Accordingly, the length X of the pasting site is preferably 10 to 70%, more preferably 10 to 50%, and particularly 10 to 30% with respect to the length Y of the pasting side intermediate site. Is preferred.

  In the present invention, the length X of the application site can be defined by an absolute size other than the relative size based on the ratio to the length Y of the application side intermediate site. This is because the affixing site is provided to be fixed to the article by adhering, and therefore it is important to have a length that can be fixed to the article by adhering (particularly, firmly fixed). It is important that the length X of the application site is, for example, 3 mm or more (preferably 5 mm or more, more preferably 8 mm or more). The upper limit of the length X of the application site is not particularly limited. If the length is too long, as described above, the shortening of the overall length of the foldable adhesive tape or sheet is reduced. Depending on the adhesiveness of the adhesive layer or the like, for example, it can be selected from the range of 20 mm or less (preferably 15 mm or less, more preferably 12 mm or less). Therefore, the length X of the pasting site can be selected from a range that is shorter than the length Y of the pasting side intermediate site and 3 mm or more (for example, 3 to 20 mm).

  In the foldable adhesive tape or sheet of the present invention, the length Z of the end side portion (deployment portion) where the knob portion is formed is the first from the end side where the knob portion is not formed. The length Y between the crease part and the second crease part (affixing side intermediate part) may be long, but is preferably short, and in particular, the folding type adhesive tape or sheet is folded. From the viewpoint of reducing the total thickness in the state where it is applied, the length (Y) is obtained by subtracting the length X of the end portion side (applying portion) where the knob portion is not formed from the length Y of the attaching intermediate portion. -X) is preferably the same as or shorter than -X). In other words, the length Z of the development site is a difference (Y−X) between the length Y of the pasting side intermediate site and the length X of the end side site (pasting site) where the knob portion is not formed. On the other hand, the size is preferably less than 100%. As described above, when the length Z of the development site is less than 100% with respect to the difference (Y-X) between the length Y of the application side intermediate site and the length X of the application site, the foldable adhesive tape Alternatively, in the folded state, the unfolded portion is not laminated on the pasting site via the pasting-side intermediate portion, so that the total thickness in the folded state can be made thinner by one layer than in the past. . In addition, when the length Z of the deployment site exceeds 100% with respect to the difference (Y−X) between the length Y of the pasting side intermediate site and the length X of the pasting site, in the folded state Since the total thickness of the material is not constant, the thickness is increased at the location where the development site is laminated on the application site via the intermediate site on the application side, and the thickness is reduced at other locations, resulting in steps. If the length Z of the part is less than 100% with respect to the difference (Y−X) between the length Y of the sticking side intermediate part and the length X of the sticking part, the effect of eliminating such a step is also exhibited. Is done.

  In addition, when the development length that is expanded and deployed when the folding adhesive tape or sheet is deployed is constant, if the length Z of the deployment site is too short, the length of the pasting side intermediate site is increased. And the length when folded is long. In addition, when the length Z of the development site is too short with respect to the difference (Y−X) between the length Y of the pasting side intermediate site and the length X of the pasting site, the thickness in the folded state is constant. In other words, a level difference occurs. Therefore, from the viewpoint of making the total thickness and the total length of the foldable adhesive tape or sheet folded, etc., as the length Z of the unfolded part, the length Y of the sticking side intermediate part and the length of the sticking part It is desirable that it is 90 to 100% (preferably 95 to 100%) with respect to the difference from the length X (Y-X), and it is particularly preferable that it is 99 to 100% (almost 100%).

  Therefore, as shown in FIG. 1, the folding adhesive tape or sheet is folded in such a manner that the end of the unfolded part and the end of the pasting part are located on the same or substantially the same surface. It is preferable that

  In the foldable pressure-sensitive adhesive tape or sheet, the foldable pressure-sensitive adhesive tape or sheet is bent twice in an S shape as a portion between the unfolded portion and the affixed portion (sometimes referred to as “intermediate portion”). When it has the structure folded by, it is comprised only by the sticking side intermediate part. On the other hand, when the foldable adhesive tape or sheet has a configuration that is folded by folding it four times or more in a bellows shape, it is the second from the sticking-side intermediate portion and the end side where the knob portion is not formed. A part between the crease part and the third crease part, a part between the third crease part and the fourth crease part from the end side where the knob part is not formed, etc. It is comprised by the intermediate part. The length of the intermediate part other than the sticking side intermediate part may be shorter or longer than the sticking side intermediate part, but as shown in FIGS. 2 (a) and 2 (b) It is preferable that the length is the same as or substantially the same as the side intermediate portion. That is, it is preferable that the length of the intermediate part is constant or almost constant.

  In such a foldable pressure-sensitive adhesive tape or sheet, since the knob portion is formed at the end of the development part, the adhesive for sticking to the article formed on the surface of the development part at the intermediate part side It is important that the layer (developing pressure-sensitive adhesive layer) is not formed at or near the end so that a knob is formed at the end. It is sufficient that an adhesive layer (adhesive adhesive layer) for application to an article is formed at least partially on the surface of the application site, but the adhesive adhesive layer may be entirely formed. preferable.

  Furthermore, among the intermediate parts, the intermediate part between the first crease part and the second crease part from the end part (knob part formation end part) side where the knob part is formed ("deployment side") A release treatment layer is formed on the surface on the development site side in some cases called “intermediate site”. It is important that the release treatment layer is provided at least in a portion where the development pressure-sensitive adhesive layer formed on the surface on the intermediate site side of the development site is overlapped. When the folding adhesive tape or sheet is wound in a folded state in a folded state, the release treatment layer is entirely formed on the surface of the development site in the development-side intermediate site, and the development is performed. It is preferable that a release treatment layer is also formed on the entire surface of the part. In this way, when the foldable adhesive tape or sheet is folded and the surface exposed to the development site side is a release treatment layer, it is folded without using a release liner. Can be wound into a roll. The folded pressure-sensitive adhesive tape or sheet wound in a roll shape in such a folded state can be unwound and cut into an appropriate width before use.

  In addition, when the foldable adhesive tape or sheet has a configuration that is folded by bending it twice into an S-shape, the unfolded side intermediate portion and the pasting side intermediate portion are, of course, the same intermediate portion. The intermediate part between the development part and the application part is only the development side intermediate part or the application side intermediate part.

  Further, of the intermediate part, the intermediate part between the first crease part and the second crease part from the end part where the knob part is not formed (the end part where the knob part is not formed) and the second crease part (paste side intermediate part) The temporary bonding layer for applying (temporarily fixing) to the article until it is developed into a long shape is at least partially on the exposed surface that is not overlapped with the application site. Is formed. The temporary fixing layer may be formed entirely on the surface exposed in the folded state on the surface on the pasting site side in the pasting side intermediate site, but on the end side on the second fold portion side It is preferable that it is not formed in the part. That is, the knob part non-formation end part side in the region between the first crease part (first crease part) and the second crease part (second crease part) from the knob part non-formation end part side In the surface on the part (applied part) side, it is desirable that the temporary fixing layer is not formed on the end part side on the second fold part side. In addition, when there are too many parts in which the temporary fix | stop layer is not formed, the fixing property to the articles | goods of a folding type adhesive tape or a sheet will fall, and it will become easy to peel. Therefore, the portion on the end side on the second fold portion side where the temporary fixing layer is not formed is a portion within 5 mm (more preferably a portion within 3 mm) from the end portion on the second fold portion side. desirable. Thus, when the temporary fixing layer has a form that is not formed on the end portion side portion on the second fold portion side, the end portion on the second fold portion side when the knob portion is pulled and deployed. As a result, the force when pulled is effectively applied to the interface between the application-side intermediate part and the article, and can be easily deployed with the application part fixed to the article. It becomes like this.

  Furthermore, the affixed part and the affixed-side intermediate part may be bonded so that they cannot be peeled off, but the structure that is simply overlapped by direct contact, the adhesive layer, the temporary fixing layer, etc. It is preferable to use a release treatment layer and have a configuration in which the layers are detachably bonded. As described above, when the pasting site and the pasting side intermediate site are not pasted but directly contacted and overlapped, the length X of the pasting site is set to the length Y of the pasting side middle site. On the other hand, it is preferably 30% or less (for example, 10 to 30%). When the length X of the applied site is 30% or less (for example, 10 to 30%) with respect to the length Y of the applied side intermediate site, the applied site and the applied side intermediate site are overlapped However, even if they are simply overlapped without sticking the application site and the intermediate site on the application side, there is no floating when folded, and the effect of being in contact and overlapping is effective. Can be retained.

  In this way, when the pasting part and the pasting side intermediate part are not attached, but are configured to be directly contacted and overlapped, as the position of the end portion on the first fold part side in the temporary fixing layer, There is no particular limitation as long as the position is the position of the end of the pasting site when folded (the end where the knob part is not formed) or the position closer to it (that is, the second fold part). If the width between the position of the end portion on the first crease portion side in the temporary fixing layer and the position of the end portion where the knob portion is not formed is too wide, the fixing property of the foldable adhesive tape or sheet to the article is lowered. In order to peel off easily, it is desirable to be in the range of 0 to 5 mm (preferably 0 to 3 mm).

  On the other hand, when the pasting part and the pasting side intermediate part are pasted together in a peelable manner, a release layer is formed on the pasting side intermediate part side of the pasting part and overlapped with the pasting part of the pasting side intermediate part It is preferable that the application site and the application-side intermediate site are overlapped by forming a pressure-sensitive adhesive layer or a temporary fixing layer (particularly a temporary fixing layer) on the surface and bonding them in a peelable form.

  In addition, when the pasting part and the pasting side intermediate part are pasted together so that they cannot be peeled off, the pulling force is also applied to the interface between the pasting part and the article when the knob part is pulled and deployed. Therefore, there is a possibility that the application site (that is, the adhesive tape or the sheet) is peeled off from the article.

  Specifically, in the folding pressure-sensitive adhesive tape or sheet of the present invention, the unfolded length that expands when unfolded (that is, the end on the knob portion side at the site where the article is stuck when unfolded) When the length from the part to the tip of the knob part is about 110 mm, as shown in FIG. 3A, the length of the development part is 50 mm, and the distance between the development part and the application part (fold part) The length of the middle part (intermediate part) is 60 mm, the length of the pasting part is 10 mm, and it can be bent and folded twice into an S shape. Therefore, although the folding type adhesive tape or sheet of the present invention has a developed length of 110 mm, the overall length (full length) can be 120 mm.

  In the foldable adhesive tape or sheet, the unfolded length is the length of the unfolded portion and the intermediate portion (the portion between the folds), and the overall length is the length of the unfolded portion, the intermediate portion, and the pasted portion. Therefore, in the foldable adhesive tape or sheet of FIG. 1, the unfolded length is (Y + Z), and the overall length is (X + Y + Z).

  On the other hand, as a conventional folded adhesive tape or sheet, for example, as shown in FIG. 3 (b), it is formed by connecting and connecting three supports and bending twice into an S-shape. The pressure-sensitive adhesive tape or sheet is folded and expanded. When the pressure-sensitive adhesive tape or sheet is unfolded, the unfolded length is about 108 mm, but the entire length (total length) of the pressure-sensitive adhesive tape or sheet. Is 63 + 58 + 50 = 171 mm. Moreover, since the lengths of the three supports are 70 (63 + 7), 70 (58 + 5 + 7), and 51 (50 + 1), respectively, the total length of the three supports is 191 mm.

  In the case where the conventional folded adhesive tape or sheet is formed of a single support and is folded in an S-shape by bending twice, the adhesive tape or sheet is shown in FIG. As shown, when the unfolded length of the unfolded film is about 105 mm, the total length of the adhesive tape or sheet is 55 + 50 + 50 = 155 mm.

  As described above, the folding length of the folding adhesive tape or sheet of the present invention is the same as the unfolding length when the conventional folded adhesive tape or sheet is unfolded. Even when the length is substantially the same, the overall length (full length) is effectively shortened. Moreover, it can be easily deployed at the time of deployment. Furthermore, the thickness when folded is thin, and the flexibility of the adhesive tape or sheet in the folded state is also good.

  3 is a schematic cross-sectional view showing the folded adhesive tape or sheet, FIG. 3 (a) shows the folding adhesive tape or sheet of the present invention, and FIG. 3 (b) shows three sheets. Fig. 3 (c) shows a conventional folded adhesive tape or sheet formed by joining and connecting the two support members and folded in an S-shape twice. The adhesive tape or sheet | seat of the form which was formed by the body and bend | folded by bending twice into S shape is shown. In FIG. 3, 5a is a folded adhesive tape or sheet, 6a1 to 6a3 are supports, 7a1 is an adhesive layer, 7a2 is a release treatment layer, 7a3 is an adhesive layer, and 7a4 is a temporary adhesive layer. 7a5 is a release treatment layer, 7a6 is an adhesive layer, 7a7 is a release treatment layer, and 7a8 is a knob layer printing layer. 5b is a folded adhesive tape or sheet, 6b is a support, 7b1 is an adhesive layer, 7b2 and 7b3 are temporary adhesive layers, 7b4 is a release treatment layer, 7b5 is an adhesive layer, and 7b6. Is a mold release layer, and 7b7 is a knob layer printing layer. Moreover, the codes | symbols of 1, 1a-1d, 2a-2c, 3a1, 3a2, 3a3, 3b1, 3c1, 3c2, 4, etc. are the same as the above.

  Thus, in the related art, as shown in FIGS. 3B to 3C, among the portions (intermediate portions) between the fold portions in the folded adhesive tape or sheet, the knob portion non-forming end side The intermediate part between the first crease part and the second crease part (sticking side intermediate part) is pasted to the sticking part by temporary attachment or the like, and the sticking side intermediate part is used as a paper diaper, etc. An adhesive tape or sheet in a form to be directly attached to the article by temporary fixing has not been disclosed. This is because, for example, when the article is a paper diaper, if the pasting side intermediate part is directly pasted on the paper diaper, it cannot be easily peeled off and can be stuck with good adhesiveness to the nonwoven fabric. This is because a temporary fixing layer capable of exhibiting good releasability has not been developed when it is peeled off. However, in the present invention, since a temporary fixing layer capable of exhibiting such characteristics has been developed, an article such as a paper diaper (for example, an article whose surface is a non-woven cloth surface, etc.) when deployed is developed. ) To minimize the length of the affixed part fixed by affixing, and to apply the affixed side intermediate part that is a part between the first fold part and the second crease part from the affixed part side. In addition, it is possible to produce an adhesive tape or sheet in a form to be directly attached to an article such as a paper diaper by temporary fixing. Of course, the intermediate part on the sticking side is only temporarily fixed to an article such as a paper diaper, and at the time of deployment, it can be peeled and deployed without damaging the surface of the article such as a paper diaper. Therefore, it is possible to effectively shorten the overall length of the folding adhesive tape or sheet.

  When the foldable adhesive tape or sheet of the present invention is developed in a long shape, the interface between the parts (for example, in the adhesive tape 1 shown in FIG. 1, the developed part 2a and the part 2c between the folds 2c). And the order in which peeling occurs at the interface between the application-side intermediate portion and the article is not particularly limited. For example, when the adhesive tape 1 shown in FIG. 1 is developed in a long shape, (1) after peeling occurs at the interface between the development site 2a and the site between the 1-2 folds 2c, between the 1-2 folds Peeling may occur at the interface between the part 2c and the article. (2) After peeling occurs at the interface between the 1-2 fold part 2c and the article, the developed part 2a and the part between the two folds 2c Peeling may occur at the interface with (2) the interface between the unfolded portion 2a and the portion between the first and second fold portions 2c, and the two interfaces between the portion between the first and second fold portions 2c and the article interface. Separation may occur.

  In particular, as the adhesive tape 1, from the viewpoint of easiness of the unfolding operation, etc., after peeling occurs at the interface between the 1-2 fold portion 2c and the article, the unfolded portion 2a and the 1-2 fold portion 2c. It is preferable to have a form that develops so that peeling occurs at the interface with the.

  The peeling force between the application-side intermediate part and the article can be effectively maintained when the foldable adhesive tape or sheet is applied to the article, and the knob is pulled. When developing, it is not particularly limited as long as it can be easily peeled off, and can be appropriately selected according to the type of the article. For example, when a foldable adhesive tape or sheet is attached to a paper diaper (that is, when the article is a paper diaper), the surface of the paper diaper is often a polypropylene nonwoven fabric. As a peeling force between (trade name “Syntex” manufactured by Mitsui Chemicals, Inc.), 0.5 to 5.0 N / 25 mm (preferably 1.0 to 3.0 N / 25 mm, more preferably 1. 5 to 2.5 N / 25 mm).

  Moreover, as peeling force between an expansion | deployment site | part and a sticking side intermediate site | part, 0.3-3.0N / 25mm (Preferably 0.5-2.5N / 25mm, More preferably, 1.0-2. 0 N / 25 mm).

  In addition, the adhesive force of the adhesive layer (adhesive adhesive layer) formed on the surface of the part (applied part) on the side where the knob part is not formed is not particularly limited. Moreover, the adhesive force of the spread adhesive layer is not particularly limited.

(Support)
Although it does not restrict | limit especially as a support body (base material), For example, plastic base materials, metal base materials (For example, various metal foils, such as aluminum foil, iron foil, stainless steel foil, nickel foil, copper foil, etc.), Thin leaf bodies such as fiber base materials (for example, non-woven fabric) and paper base materials (for example, Japanese paper) can be mentioned. The support may have any form of a single layer or a laminate.

  In the present invention, a plastic substrate can be suitably used as the support. Examples of a material or material constituting the plastic substrate include polyolefin resins such as polyethylene (PE), polypropylene (PP), and ethylene-propylene copolymer; polyimide (PI); polyethylene terephthalate (PET), polybutylene. Polyester resins such as terephthalate (PBT); polyamide resins; methacrylate resins such as polymethyl methacrylate (PMMA); acrylic resins; polystyrene, acrylonitrile-styrene copolymer (AS resin), acrylonitrile-butadiene-styrene copolymer Styrenic resin such as coalescence (ABS resin); polycarbonate; urethane resin: epoxy resin; various resins such as fluorine resin. As the plastic substrate, a plastic substrate formed of a polyolefin-based resin (in particular, polyethylene or polypropylene, particularly polypropylene) is preferable from the viewpoint of flexibility and the like.

  The surface of the support (especially plastic substrate) is subjected to physical treatment such as corona treatment and plasma treatment, and chemical treatment such as primer for the purpose of improving adhesion with the adhesive layer. Appropriate surface treatments such as may be applied.

  Although it does not restrict | limit especially as thickness of a support body, Usually, it is 5-1000 micrometers (preferably 10-500 micrometers).

  As shown in FIG. 1, the support preferably has a structure formed continuously from the end of the pasting site to the end of the deployment site. That is, the support is preferably a support (one long sheet-like base material) having a structure formed continuously from one end to the other end. Thus, when the support is a long sheet-like base material, the folding-type adhesive tape or sheet has the original excellent flexibility possessed by one sheet-like base material. For example, even if the side surface of the folding adhesive tape or sheet is touched, the occurrence of injury is prevented. In addition, when the support is a long sheet-like base material, the thickness of the foldable adhesive tape or sheet can be effectively reduced. Further, if the support is a long sheet-like base material, due to its flexibility, the repulsive force when folded is small, and therefore, the opposing surfaces and surfaces for holding the folded state Therefore, the force (the peeling force between the opposing surfaces) when deploying in a long shape can be effectively reduced. Furthermore, since the surface of the support does not have a step and is a flat surface, when it is a foldable pressure-sensitive adhesive tape or sheet, it can be folded with the opposing surfaces in close contact with each other.

  On the other hand, when the support is a long one formed by superimposing and laminating the surfaces on the end side of a plurality of sheet-like base materials (“laminated long support”), each sheet Even if it is soft as a substrate, it is hard in the laminated part, so it is hard as a whole, and the foldable adhesive tape or sheet is hard. Moreover, since such a laminated elongate support body has a laminated part, the thickness at the time of setting it as a foldable adhesive tape or a sheet | seat will become thick. Furthermore, since the laminated long support is hard, the repulsive force when folded is large, and in order to maintain the folded state, the adhesive force between the opposing surfaces must be increased. In some cases, the force when deploying in a long shape is increased. In addition, since it may be difficult to bend at the laminated portion, the folding portion may be limited, and even when folded at the laminated portion, the repulsive force is large and it is difficult to maintain the folded state. Furthermore, since the surface of the laminated elongated support is not a smooth flat surface but has a step at the end of the laminated portion, when the foldable adhesive tape or sheet is used, The adhesion of is reduced.

(Attached adhesive layer)
The sticking pressure-sensitive adhesive layer is provided for sticking to an article, and in particular, provided as a pressure-sensitive adhesive layer for sticking to an article in a folded state (in an undeployed state). Specifically, by applying a foldable adhesive tape or sheet to an article using the adhesive layer, it is possible to attach and fix the application site to the article. The adhesive layer may be protected by a release liner until use, but is attached to the release treatment layer formed on the surface of the folding adhesive tape or sheet on the development site side. Preferably it is. At this time, it is preferable that the temporary fixing layer is also bonded to the release treatment layer formed on the surface of the folding adhesive tape or the development site side of the sheet. In this way, as the release treatment layer to be bonded to the adhesive layer, the development site in the development-side intermediate site, which is a site between the first and second folds from the development site, It can be comprised by the mold release process layer formed in the surface of the part which is not piled up, and the mold release process layer formed in the surface of the expansion | deployment site | part as needed. Therefore, as shown in FIG. 1 and the like, the release treatment layer may be formed entirely on the surface on the development site side in the development-side intermediate site, and may be formed on the entire surface of the development site.

  Examples of the form in which the adhesive pressure-sensitive adhesive layer is bonded to the release treatment layer formed on the surface on the development site side include, for example, (1) a foldable adhesive tape or sheet and the surface of the adhesive pressure-sensitive adhesive layer. A form in which the surface of the release treatment layer formed on the surface on the part side is in contact with each other so as to be in contact with each other, (2) a long continuous form in which a foldable adhesive tape or sheet is continuously formed Examples include a form in which the body is wound in a roll shape so that the surface of the adhesive layer and the surface of the release treatment layer formed on the surface on the development site are in contact with each other. Of course, the temporary fixing layer is also bonded to the release treatment layer formed on the surface of the folding adhesive tape or sheet on the development site side. In addition, when it has the form wound by roll shape, the folding adhesive tape or sheet | seat of a suitable width | variety can be obtained by unwinding and cut | disconnecting to a suitable width | variety at the time of utilization.

  The pressure-sensitive adhesive for forming the pressure-sensitive adhesive layer (sometimes referred to as “sticky pressure-sensitive adhesive”) is not particularly limited, and examples thereof include hot-melt pressure-sensitive adhesives, emulsion-based pressure-sensitive adhesives, solvent-based pressure-sensitive adhesives, and oligomers. Any type of pressure-sensitive adhesive such as a system-based pressure-sensitive adhesive or a solid-based pressure-sensitive adhesive may be used. A sticking adhesive can be used individually or in combination of 2 or more types. As a sticking adhesive, a hot melt adhesive can be suitably used.

  The hot melt pressure-sensitive adhesive uses an elastomer (such as a thermoplastic elastomer) or a thermoplastic resin as a base polymer. In addition, a base polymer can be used individually or in combination of 2 or more types. Examples of the base polymer thermoplastic elastomer in the hot melt adhesive include, for example, styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), and styrene-ethylene-butylene-styrene. Styrenic thermoplastic elastomers such as block copolymers (SEBS), styrene-ethylene-propylene-styrene block copolymers (SEPS), styrene-ethylene-propylene block copolymers (SEP) (styrene block copolymers; for example, styrene Styrenic block copolymer having a content of 5% by weight or more); polyurethane-based thermoplastic elastomer; polyester-based thermoplastic elastomer; polymer of polypropylene and EPT (ternary ethylene-propylene rubber) Such blends based thermoplastic elastomer such trends and the like.

  Examples of the base polymer thermoplastic resin in the hot-melt pressure-sensitive adhesive include polyolefin resins, vinyl acetate resins, polyester resins, styrene resins, acrylic resins, polyamide resins, and the like. Examples of polyolefin resins include ethylene copolymers [for example, ethylene-vinyl acetate copolymer (EVA); ethylene-acrylic acid copolymer (EAA), ethylene-methacrylic acid copolymer (EMAA). Such as ethylene-unsaturated carboxylic acid copolymer; ionomer; ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer (EEA), ethylene-ethyl acrylate 2-ethylhexyl copolymer, ethylene-methacrylic acid In addition to ethylene- (meth) acrylate copolymer such as methyl copolymer and ethylene-ethyl methacrylate copolymer; ethylene-vinyl alcohol copolymer, etc.], polyethylene (low density polyethylene, linear low density polyethylene) Metallocene catalyzed polyethylene, medium density polyethylene, high density Polyolefins such as polypropylene, α-olefin copolymers (ethylene-propylene copolymer, ethylene-butene-1 copolymer, propylene-butene-1 copolymer, etc.); polypropylene-modified resins and the like. . Examples of the vinyl acetate resin include polyvinyl acetate, vinyl acetate- (meth) acrylate copolymer, vinyl acetate-vinyl ester copolymer, vinyl acetate-maleate ester copolymer, and the like. .

  As the hot-melt type pressure-sensitive adhesive, a hot-melt type pressure-sensitive adhesive whose base polymer is a thermoplastic elastomer (particularly, a styrenic thermoplastic elastomer) is suitable.

  In addition, as adhesives such as emulsion adhesives and solvent adhesives, acrylic adhesives, rubber adhesives, polyester adhesives, urethane adhesives, polyamide adhesives, epoxy adhesives, vinyl alkyls Adhesives such as ether-based adhesives, silicone-based adhesives, and fluorine-based adhesives, and adhesives in their respective forms (for example, emulsion forms, solution forms, etc.).

  In addition to the polymer component such as the adhesive component (base polymer), the sticking adhesive is a cross-linking agent (for example, a polyisocyanate-based cross-linking agent or an alkyl etherified melamine compound-based cross-linking agent) depending on the type of the pressure-sensitive adhesive. Etc.), tackifiers (for example, rosin derivative resins, polyterpene resins, petroleum resins, phenol resins, etc.), plasticizers, fillers, anti-aging agents, and other suitable additives may be included.

  As the sticking adhesive, a so-called “strong adhesive” can be suitably used. Specifically, as the adhesive strength of the adhesive layer with the adhesive adhesive, in the 180 ° peeling test (adhered body: stainless steel plate, tensile speed: 300 mm / min) defined in JIS Z 0237, 2. It is desirable that it is 0 N / 10 mm or more.

  As a method for forming the adhesive pressure-sensitive adhesive layer, a known or conventional method for forming an adhesive layer can be employed. For example, the thickness of the adhesive pressure-sensitive adhesive after drying the adhesive pressure-sensitive adhesive on a predetermined part of a predetermined surface of the support. A method of applying and drying directly so that the thickness becomes a predetermined thickness (application method), and applying a sticky adhesive on the separator so that the thickness after drying becomes a predetermined thickness, Examples thereof include a method (transfer method) of transferring the pressure-sensitive adhesive layer onto a substrate after the formation.

  Although it does not specifically limit as thickness of a sticking adhesive layer, It is desirable that it is 10 micrometers or more from points, such as an adhesive characteristic, for example, it selects from the range of about 10-1000 micrometers (preferably 20-500 micrometers). be able to.

(Development adhesive layer)
The development pressure-sensitive adhesive layer is basically provided for sticking to an article, and in particular, provided as a pressure-sensitive adhesive layer for sticking to the article in a developed state. Moreover, in the unexpanded state, the function for hold | maintaining this folded state is also exhibited for the folding type adhesive tape or sheet | seat. Specifically, the unfolded adhesive layer is bonded to the surface of the region facing the unfolded region (deployment-side intermediate region), so that the unfolded state and the unfolded-side intermediate region are folded. Can be retained. Of course, since the adhesive layer and the release treatment layer are used in this bonding, the development part and the development side intermediate part can be peeled off. Further, the folded pressure-sensitive adhesive tape or sheet attached to the article with the adhesive pressure-sensitive adhesive layer in a folded state is unfolded in a long shape, and the unfolded state of the pressure-sensitive adhesive tape or sheet is developed using the unfolded pressure-sensitive adhesive layer. By sticking to the article, a long adhesive tape or sheet can be attached to the article. At this time, since the long adhesive tape or sheet is affixed to the article using the adhesive layer (adhesive adhesive layer, spread adhesive layer) formed at both ends, the article is restrained (particularly The function of restraining the article in a predetermined shape can be exhibited.

  The pressure-sensitive adhesive for forming the spread pressure-sensitive adhesive layer (sometimes referred to as “development pressure-sensitive adhesive”) is not particularly limited, and the same pressure-sensitive adhesive as the above-mentioned pressure-sensitive adhesive can be used. Specifically, the developing adhesive may be any form of adhesive such as a hot melt adhesive, an emulsion adhesive, a solvent adhesive, an oligomer adhesive, and a solid adhesive, for example. Good. A developing adhesive can be used individually or in combination of 2 or more types. As the spreading adhesive, a hot melt adhesive can be suitably used.

  Examples of the hot melt type adhesive in the development adhesive include hot melt type adhesives having a base polymer such as an elastomer (thermoplastic elastomer, etc.) or a thermoplastic resin, similar to the hot melt type adhesive in the adhesive adhesive. It is done. In addition, as a thermoplastic elastomer and a thermoplastic resin in a hot-melt-type adhesive, the thermoplastic elastomer and thermoplastic resin similar to the above are mentioned. As the hot-melt type pressure-sensitive adhesive, a hot-melt type pressure-sensitive adhesive whose base polymer is a thermoplastic elastomer (particularly, a styrenic thermoplastic elastomer) is suitable.

  Examples of the pressure sensitive adhesive such as an emulsion pressure sensitive adhesive and a solvent based pressure sensitive adhesive include the same pressure sensitive adhesive as in the case of the adhesive adhesive.

  In addition to the polymer component such as the adhesive component (base polymer), the developing adhesive is a crosslinking agent (for example, a polyisocyanate-based crosslinking agent, an alkyl etherified melamine compound-based crosslinking agent) depending on the type of the adhesive. Etc.), tackifiers (for example, rosin derivative resins, polyterpene resins, petroleum resins, phenol resins, etc.), plasticizers, fillers, anti-aging agents, and other suitable additives may be included.

  As the spreading adhesive, a so-called “strong adhesive” can be suitably used. Specifically, as the adhesive force of the development adhesive layer by the development adhesive, in the 180 ° peeling test (adhered body: stainless steel plate, tensile speed: 300 mm / min) defined in JIS Z 0237, 2. It is desirable that it is 0 N / 10 mm or more.

  As a method for forming the spreading adhesive layer, a known or commonly used method for forming an adhesive layer can be adopted as in the case of the adhesive pressure-sensitive adhesive layer, for example, on a predetermined part of a predetermined surface of the support. A method of applying and drying the development adhesive directly so that the thickness after drying becomes a predetermined thickness (coating method), and a development adhesive on the separator so that the thickness after drying becomes a predetermined thickness. Examples thereof include a method (transfer method) of applying an adhesive to form an adhesive layer and then transferring the adhesive layer onto a substrate.

  Although it does not specifically limit as thickness of an expansion | deployment adhesive layer, It is desirable that it is 10 micrometers or more from points, such as an adhesion characteristic, for example, it selects from the range of about 10-1000 micrometers (preferably 20-500 micrometers). be able to.

  In the present invention, the adhesive sticking adhesive and the developing adhesive may be the same adhesive or different adhesives. Moreover, the same kind of adhesive may be used.

(Temporary fixing layer)
The temporary fixing layer is provided for sticking the foldable adhesive tape or sheet to the article until it is developed into a long shape. Specifically, by using the temporary adhesive layer together with the adhesive layer, the folding adhesive tape or sheet is applied to the article, so that the part where the temporary adhesive layer is formed together with the applied part (intermediate side intermediate) Part) can be affixed to an article and fixed. On the other hand, when unfolding the foldable adhesive tape or sheet, in a state where only the pasting part is fixed to the article by sticking, the pasting side intermediate part stuck to the article by the temporary fixing layer is easily peeled from the article, Moreover, it can be developed without damaging the surface of an article (such as a paper diaper).

  The temporary fixing layer may be protected by a release liner in the same manner as the adhesive adhesive layer until use, but the release layer formed on the surface of the folding adhesive tape or sheet on the development site side. It is preferable to be bonded to the treatment layer. As described above, the release treatment layer to be bonded to the temporary fixing layer includes a release treatment layer formed on the surface of the development site and, if necessary, a portion not overlapped with the development site in the development-side intermediate site. And a release treatment layer formed on the surface. Therefore, as described above, the release treatment layer is preferably formed on the entire surface on the development site side in the development-side intermediate site and on the entire surface of the development site.

  As the form in which the temporary fixing layer is bonded to the release treatment layer formed on the surface on the development site side, the adhesive layer is a release treatment layer formed on the surface on the development site side. It is the same as the bonded form.

  The temporary fixing layer is not particularly limited as long as it is a layer that can be attached to an article until it is developed into a long shape. The temporary fixing layer can be formed of a temporary fixing agent. As the temporary fixing agent for forming the temporary fixing layer, any form of a hot-melt type temporary fixing agent, an emulsion-based temporary fixing agent, a solvent-based temporary fixing agent, an oligomer-based temporary fixing agent, a solid temporary fixing agent, etc. A temporary fixative may be used. A temporary fixative can be used individually or in combination of 2 or more types. As the temporary fixing agent, a hot melt type temporary fixing agent can be suitably used.

  The hot melt type temporary fixing agent uses a styrene polymer or an olefin polymer as a base polymer. In addition, a base polymer can be used individually or in combination of 2 or more types.

  Examples of the styrenic polymer as the base polymer in the hot-melt type temporary fixing agent include styrene-isoprene-styrene block copolymer (SIS), styrene-butadiene-styrene block copolymer (SBS), and styrene-ethylene-butylene. -Styrenic block copolymers such as styrene block copolymer (SEBS), styrene-ethylene-propylene-styrene block copolymer (SEPS), styrene-ethylene-propylene block copolymer (SEP) (for example, styrene content 5 wt. % Or more of a styrenic block copolymer).

  Examples of the olefin-based polymer as the base polymer in the hot melt temporary tackifier include, for example, ethylene-vinyl acetate copolymer (EVA); ethylene-acrylic acid copolymer (EAA), ethylene-methacrylic acid copolymer. Ethylene-unsaturated carboxylic acid copolymer such as (EMAA); ionomer; ethylene-methyl acrylate copolymer, ethylene-ethyl acrylate copolymer (EEA), ethylene-ethyl acrylate 2-ethylhexyl copolymer, ethylene -Ethylene- (meth) acrylic acid ester copolymers such as methyl methacrylate copolymer and ethylene-ethyl methacrylate copolymer; Ethylene copolymers such as ethylene-vinyl alcohol copolymer; Low density polyethylene, wire Low density polyethylene, metallocene catalyzed polyethylene, medium density Polyethylene such as polyethylene and high-density polyethylene; polypropylene; α-olefin copolymers such as ethylene-propylene copolymer, ethylene-butene-1 copolymer, propylene-butene-1 copolymer, and polypropylene-modified resins Etc.

  In addition, as temporary tacking agents such as emulsion-based temporary tacking agents and solvent-based temporary tacking agents, there are temporary tacking agents based on the above-mentioned styrene-based polymers and olefin-based polymers, and their respective forms (for example, emulsion forms, A temporary fixative in the form of a solution).

  In addition to the polymer component such as an adhesive component (base polymer), the temporary fixing agent includes a resin (sometimes referred to as “mixed resin”) that is at least partially compatible with the polymer. It is preferable. It is important that such a mixed resin is a solid resin. Specifically, examples of the mixed resin include terpene resins, hydrocarbon resins, rosin derivatives, phenol resins, and the like. As the mixed resin, terpene resins and hydrocarbon resins are preferable, and terpene resins are particularly preferable. In addition, mixed resin can be used individually or in combination of 2 or more types.

  In the mixed resin, examples of the terpene resin include terpene resins such as α-pinene polymer, β-pinene polymer, and dipentene polymer, and modified terpene resins (phenol-modified, aromatic-modified, hydrogen-modified). And modified terpene resins (for example, terpene-phenol resins, styrene modified terpene resins, aromatic modified terpene resins, hydrogenated terpene resins, etc.). Examples of the hydrocarbon resin include aliphatic hydrocarbon resins [olefins having 4 to 5 carbon atoms and dienes (olefins such as butene-1, isobutylene and pentene-1; butadiene, 1,3-pentadiene and isoprene). Aliphatic hydrocarbon polymers such as dienes, etc.], aliphatic cyclic hydrocarbon resins [so-called “C4 petroleum fraction” and “C5 petroleum fraction” after cyclization and dimerization and polymerization. Alicyclic hydrocarbon resins, polymers of cyclic diene compounds (cyclopentadiene, dicyclopentadiene, ethylidene norbornene, dipentene, etc.) or hydrogenated products thereof, the following aromatic hydrocarbon resins and aliphatic / aromatic systems Alicyclic hydrocarbon resins obtained by hydrogenating aromatic rings of petroleum resins, etc.], aromatic hydrocarbon resins [vinyl group-containing aromatic hydrocarbons having 8 to 10 carbon atoms] Polymers of styrene, vinyltoluene, α-methylstyrene, indene, methylindene, etc.)], aliphatic / aromatic petroleum resins (styrene-olefin copolymers, etc.), aliphatic / alicyclic petroleum resins And various hydrocarbon resins such as hydrogenated hydrocarbon resins, coumarone resins, and coumarone indene resins.

  The ratio of the mixed resin can be selected, for example, from the range of 10 to 150 parts by weight (preferably 20 to 120 parts by weight, more preferably 30 to 80 parts by weight) with respect to 100 parts by weight of the base polymer.

  Moreover, it is preferable that the temporary fixing agent contains a softening agent. It is important that the softener is a liquid softener. As the softening agent, various softening agents such as terpene oil, naphthenic oil, and paraffin oil can be used, and terpene oil can be preferably used. A softener can be used individually or in combination of 2 or more types.

  In the softener, examples of the terpene oil include “YS Resin TO-L” (manufactured by Yashara Chemical Co., Ltd .; aromatic modified terpene hydrocarbon low polymer).

  As a ratio of a softening agent, it can select from the range of 10-100 weight part (preferably 20-80 weight part, More preferably, 30-60 weight part) with respect to 100 weight part of base polymers, for example.

  Furthermore, the temporary fixing agent may contain appropriate additives such as an antioxidant, an anti-aging agent, an ultraviolet absorber, a plasticizer, a filler, and a cross-linking agent as necessary.

  As such a temporary fixing agent, when the base polymer is a rubber-based polymer such as a styrene-based polymer, the melt viscosity at 160 ° C. is preferably 30 to 800 Pa · s, more preferably 50 to 600 Pa · s. In particular, it is preferably 80 to 500 Pa · s. When the base polymer is an olefin polymer, the temporary viscosity is preferably 0.1 to 5.0 Pa · s, more preferably 0.3 to 3.5 Pa at 160 ° C. · S, particularly preferably 1.0 to 3.0 Pa · s. If the melt viscosity (160 ° C.) of the temporary fixing agent is too low, the adhesive force of the temporary fixing layer is too strong, and it is easy from the article when a foldable adhesive tape or sheet is attached to the article using the temporary fixing layer. Cannot be peeled off. On the other hand, if the melt viscosity (160 ° C.) of the temporary fixing agent is too high, the adhesive strength of the temporary fixing layer is reduced, and the fixing property of the foldable adhesive tape or sheet to the article is reduced.

  In addition, the melt viscosity (160 ° C.) of the temporary fixing agent can be measured according to JIS K 6862. Specifically, it can be measured by a hot melt adhesive melt viscosity test method.

  As the temporary fixing agent, a so-called “weak adhesive” can be suitably used. Specifically, as described above, the adhesive strength of the temporary fixing layer with the temporary fixing agent is, for example, 0.5 N / 10 mm or more with respect to a polypropylene-based nonwoven fabric (trade name “Syntex” manufactured by Mitsui Chemicals, Inc.). [Compliant with 180 ° peeling test (tensile speed: 300 mm / min) specified in JIS Z 0237] is desirable.

  As a method for forming the temporary fixing layer, for example, a method in which a hot-melt hot-melt temporary fixing agent is directly applied on a predetermined portion of a predetermined surface of a support and cooled (hot melt coating method). Alternatively, a method of applying a solution type temporary fixing agent so that the thickness after drying becomes a predetermined thickness and drying the solution (solution coating method) may be used. In addition, when applying the hot-melt type temporary fixing agent, it can be applied in various shapes such as so-called “solid”, mist, and pattern.

  Although it does not specifically limit as thickness of a temporary fix layer, For example, it can select from the range of about 5-60 micrometers (preferably 10-40 micrometers).

(Print layer for knob part)
The knob portion printing layer is formed to clearly show the knob portion. Therefore, the knob portion printing layer may not be formed when it is not necessary to clearly show the knob portion. That is, the knob portion printing layer can be arbitrarily provided. The knob portion printing layer can be formed by appropriately using various known printing methods. In addition, the printing ink etc. in particular which form the knob part printing layer are not restrict | limited, According to the printing method etc., it can select from well-known printing ink suitably.

(Release processing layer)
In the foldable pressure-sensitive adhesive tape or sheet of the present invention, the part of the surface of the intermediate part (development side intermediate part) where the release treatment layer is superimposed on the intermediate part side surface of the development part. Are provided at least. Other parts where the release treatment layer is provided include, for example, the surface part of the development part, the surface part where the development adhesive layer in the development side intermediate part is not superimposed, and the application side intermediate part in the application part. And the like. These sites can be arbitrarily selected.

  The release treatment agent (release treatment agent) for forming such a release treatment layer is not particularly limited. For example, a release treatment agent using a long-chain alkyl group-containing polymer, a silicone-based release treatment agent, a fluorine-based treatment agent. A known release treatment agent such as a release treatment agent can be appropriately selected and used, and among them, a silicone-based release treatment agent can be suitably used.

  As a method for forming the release treatment layer, a known or conventional method for forming a release treatment layer can be employed. For example, after drying the release treatment agent on a predetermined portion of a predetermined surface of the support, And a method of coating and drying such that the thickness of the film becomes a predetermined thickness (coating method). It does not restrict | limit especially as thickness of a mold release process layer, For example, it can select from the range of about 0.001-5 micrometers.

(Temporary adhesive layer)
When the foldable adhesive tape or sheet has a configuration that is folded by folding it four times or more in a bellows shape, the intermediate sites between the developed site and the applied site (that is, the sites between the folds) May be overlaid in a state of being applied using an adhesive layer and a release treatment layer, but is preferably overlaid in a state of being applied using a temporary adhesive layer. . By using the temporary adhesive layer, it is possible to hold the folded state by pasting together in a peelable state. Moreover, after peeling, the adhesiveness of the temporary adhesive layer is remarkably lowered and it is difficult to re-adhere, and the surface on which the temporary adhesive layer at the intermediate portion is formed is not sticky. Therefore, when the foldable adhesive tape or sheet is unfolded into a long shape, the temporary adhesive layer is exposed on the surface, but the surface of the temporary adhesive layer is a non-adhesive surface. Even if a part touches the surface of the temporary adhesive layer, it is difficult to adhere.

  The temporary adhesive for forming such a temporary adhesive layer is not particularly limited. For example, a polyolefin temporary adhesive (for example, a polyethylene temporary adhesive, a polypropylene temporary adhesive, an ethylene-propylene copolymer temporary adhesive). Adhesives, etc.); known temporary adhesives such as styrene temporary adhesives (for example, temporary adhesives with styrene thermoplastic elastomers, etc.) can be used. Temporary agents can be used alone or in combination of two or more. The temporary adhesive layer can be formed on each surface of the intermediate portions to be bonded. Each temporary adhesive layer may be formed of the same temporary adhesive, or may be formed of different temporary adhesives.

  As the temporary adhesive for forming the temporary adhesive layer, a polyolefin-based temporary adhesive (in particular, a polypropylene-based temporary adhesive) can be suitably used.

  As a method for forming the temporary adhesive layer, a known or conventional method for forming a temporary adhesive layer can be employed. For example, a method (hot melt coating method) in which a heat-melted temporary adhesive is directly applied onto a predetermined portion of a predetermined surface of a support and cooled, or a thickness after drying is a predetermined thickness. For example, a method of applying a solution-type temporary adhesive and drying the solution (solution coating method) may be used.

  Although it does not specifically limit as thickness of a temporary adhesive layer, As thickness of each temporary adhesive layer, it can select from the range of about 2-40 micrometers (preferably 5-15 micrometers), for example.

(Other adhesive layer)
In the present invention, a pressure-sensitive adhesive layer is formed as necessary on the surface part where the pasting part in the pasting side intermediate part is superposed, or on the surface part of one intermediate part when the intermediate parts are superposed on each other. can do. Such a pressure-sensitive adhesive layer can be formed of the same pressure-sensitive adhesive as the pressure-sensitive adhesive forming the adhesive layer and the spread pressure-sensitive adhesive layer.

(Folding adhesive tape or sheet manufacturing method)
The foldable pressure-sensitive adhesive tape or sheet of the present invention includes each pressure-sensitive adhesive layer (adhesive pressure-sensitive adhesive layer, spread pressure-sensitive adhesive layer), each temporary fixing layer, each release treatment layer, and, if necessary, a printing layer for a knob part. A step of forming each layer (each layer forming step), a step of folding so that the applied site and the applied side intermediate site are in contact with each other in a predetermined positional relationship (first folding process), and an expanded site and an expanded side intermediate site are predetermined It can be produced by a manufacturing method comprising a step of folding so as to be in contact with each other (second folding step) and, if necessary, a step of folding so that intermediate portions are in contact with each other (third folding step). it can.

Specifically, the folding pressure-sensitive adhesive tape or sheet shown in FIG. 1 can be produced by a production method comprising the following steps.
The step of forming a sticky adhesive layer on a predetermined portion of a predetermined surface of the support The step of forming a spread adhesive layer on a predetermined portion of the predetermined surface of the support Temporarily at a predetermined portion of the predetermined surface of the support A step of forming a stop layer A step of forming a release treatment layer at a predetermined site on a predetermined surface of the support body A step of folding so that the application site and the application side intermediate site are in contact with each other in a predetermined positional relationship (first folding process) )
Folding process (second folding process) so that the unfolded part and the unfolded intermediate part are in contact with each other in a predetermined positional relationship

Moreover, the following process may be further included as needed.
Forming a knob layer printing layer on a predetermined portion of a predetermined surface of a support;

  Thus, the foldable pressure-sensitive adhesive tape or sheet has a process for forming each layer (each layer forming process), a first folding process, a second folding process, and a third folding process as necessary. Can be produced. For example, in the case of the foldable adhesive tape or sheet shown in FIG. 1, as shown in FIG. 4, at a predetermined portion on one surface of the support, a knob portion printing layer, a developing adhesive layer, a release treatment After forming all the layers in advance, the end of the adhesive layer is temporarily fixed. The unfolded pressure-sensitive adhesive layer and the release treatment layer formed on the same surface of the support before folding are folded so as to be substantially the same part without overlapping with the end of the layer and located on the same surface side. You may form by folding so that an expansion | swelling adhesive layer and a mold release process layer may contact in the boundary part. Also, as described above, after forming all the layers in advance, at the boundary between the development adhesive layer and the release treatment layer formed on the same surface of the support before folding, the development adhesive layer and the mold release Folded so that the treatment layer comes into contact, and then folded so that the end of the adhesive layer is not overlapped with the end of the temporary fixing layer and is located on the same surface side. May be.

  Furthermore, before performing the second folding step, after forming the knob layer printing layer, the spread adhesive layer, and the release treatment layer on the same surface side as the spread adhesive layer in the support before folding, the second folding is performed. It can also be produced by performing the process and performing the first folding process before or after the second folding process or in parallel. In this case, the adhesive layer, the temporary fixing layer, the release treatment layer on the same surface side as the temporary fixing layer in the support before folding, and the like can be formed at an appropriate stage.

  In addition, the production equipment and the process, before the first folding process, the printing layer for the knob part, the unfolding adhesive layer, the release treatment layer on the same surface side as the unfolding adhesive layer in the support before folding, affixing Produced by continuously performing the first folding step and the second folding step after forming the pressure-sensitive adhesive layer, the release treatment layer on the same surface side as the temporary fixing layer in the support before folding, and the temporary fixing layer. You can also

  FIG. 4 is a schematic cross-sectional view showing an example of a method for producing the pressure-sensitive adhesive tape or sheet of the present invention. FIG. 4 (a) shows a state in which each layer is formed at a predetermined site on the support. (B) Folded the support on which each layer was formed in such a manner that the end of the adhesive layer was not overlapped with the end of the temporary fixing layer and was almost the same part and located on the same surface side. FIG. 4 (c) shows the state, and after folding as shown in FIG. 4 (b), at the boundary between the developed pressure-sensitive adhesive layer and the release treatment layer formed on the same surface of the support. The folded state is shown so that the developed pressure-sensitive adhesive layer and the release treatment layer are in contact with each other. In FIG. 4, the symbols 1, 1a to 1d, 2, 2a to 2c, 3a1, 3a2, 3a3, 3b1, 3c1, 3c2, 4 and the like are the same as described above.

  As the foldable adhesive tape or sheet of the present invention, first, each release treatment layer (on the same surface side as the unfolded adhesive layer in the support before folding) is formed on a predetermined portion of the support on a predetermined surface. After forming the mold treatment layer, the mold release treatment layer on the same surface side as the temporary fixing layer in the support before folding), the development pressure-sensitive adhesive layer is formed, and then formed on the same surface in the support before folding. Folded so that the developed pressure-sensitive adhesive layer and the predetermined release treatment layer are in contact with each other at the boundary between the developed pressure-sensitive adhesive layer and the release treatment layer, and then the adhesive pressure-sensitive adhesive layer and the temporary fixing layer are simultaneously or After being formed separately, the end of the adhesive layer is not overlapped with the end of the temporary fixing layer, and it is almost the same part and is folded so that it is located on the same surface side. it can. At this time, the knob portion printing layer can be formed at an appropriate stage.

  In addition, as a folding type adhesive tape or sheet of the present invention, as shown in FIG. 5, an elongated continuous body in which the adhesive tape or sheet folded as described above is continuously formed is used. , Rolled and overlapped in a roll shape so that the surface of the adhesive layer and the temporary fixing layer and the exposed surface of the release treatment layer are in contact with each other, rewound during use and cut into an appropriate width Can also be provided. In this way, the adhesive tape or sheet wound in a roll shape in a folded state is, for example, at a predetermined portion in the width direction of one surface of the long support, at the knob portion printing layer. , A spreading adhesive layer, a release treatment layer, and a sticking adhesive layer are formed, and a release treatment layer and a temporary fixing layer are formed in a predetermined portion in the width direction of the other surface, and the width direction is appropriately determined. Thus, the step of folding the adhesive layer so that the end of the adhesive layer does not overlap the end of the temporary fixing layer and is located on the same surface side (first folding step), and the support before folding A step of folding the developed pressure-sensitive adhesive layer and the release treatment layer at the boundary between the developed pressure-sensitive adhesive layer and the release treatment layer formed on the same surface (second folding step) was performed. After that, the surface of the adhesive layer and the temporary fixing layer and the surface of the exposed release layer There by winding superposed in a roll shape so as to contact, can be prepared.

  FIG. 5 is a schematic cross-sectional view showing an example of the pressure-sensitive adhesive tape or sheet of the present invention, and FIG. 5A is a long continuous body in which the pressure-sensitive adhesive tape or sheet in a folded state is continuously formed. FIG. 5B is a cross-sectional view taken along the line X′-Y ′ in FIG. 5A. FIG. 5B shows a pressure-sensitive adhesive tape or sheet wound in a roll shape. In addition, in FIG. 5, 11 is the adhesive tape or sheet | seat of the form rolled up and piled up the continuous continuous body in which the adhesive tape or sheet | seat of the folded state was formed continuously Reference numerals 1a to 1d, 2, 2a to 2c, 3a1, 3a2, 3a3, 3b1, 3c1, 3c2, 4 and the like are the same as described above.

  Since the foldable adhesive tape or sheet of the present invention has the above-described configuration, it is folded in a form that can be easily deployed, and without shortening the deployment length when deployed, The entire length of the adhesive tape or sheet can be shortened. Furthermore, the thickness when folded can be further reduced. Therefore, the foldable pressure-sensitive adhesive tape or sheet of the present invention is useful as a pressure-sensitive adhesive tape or sheet for holding various articles in a rolled state, and in particular, an article that can be rolled up when discarded. It can be suitably used as a constraining pressure-sensitive adhesive tape or sheet for sticking and unfolding the article so that the article is elongated and held in a rolled state. Although it does not restrict | limit especially as such articles | goods, For example, a paper diaper (or it is also called a disposable diaper etc.) [especially what is called a "pants type disposable diaper" (or it is also called a "pants type disposable diaper" etc.). ] And sanitary napkins.

[Paper diapers]
In the paper diaper (disposable diaper) of the present invention, the foldable adhesive tape or sheet is used as a constraining adhesive tape or sheet for holding the paper diaper in a rolled state. Such a paper diaper may be a so-called “paper diaper with tape” (or also referred to as “disposable diaper with tape”, “open type disposable diaper”, “open type disposable diaper”, etc.). Paper diapers are preferably used. The paper diaper may be an adult paper diaper or an infant paper diaper, but an infant paper diaper is preferred.

  The part where the folding adhesive tape or sheet is affixed to the paper diaper is not particularly limited, but from the viewpoint of preventing mischief of infants and the like, as shown in FIG. The part (8a in FIG. 6) located in is preferable.

  FIG. 6 is a schematic view showing an example of a pants-type paper diaper. In FIG. 6, 8 is a pants-type paper diaper, 8a is a part located in the vertical width region of the waist on the back side surface of the pants-type paper diaper, 8b is an opening of the waist, A is a back side of the pants-type paper diaper, B Is a waist side of the pants-type paper diaper, and C is a front side of the pants-type paper diaper.

  When a foldable adhesive tape or sheet is affixed to a paper diaper, the longitudinal direction of the diaper may be affixed to the waistline direction or the vertical direction of the paper diaper. It is preferable. That is, the foldable adhesive tape or sheet may be affixed in a form that can be deployed in the direction of the opening of the waist portion at a position located in the vertical width region of the waist portion on the back side surface of the paper diaper. preferable. In addition, since the folding type adhesive tape or sheet of the present invention can have the developed length equal to the conventional length even if the overall length is short, it is necessary to restrain and hold the paper diaper in a rolled state. It can be a sufficient length.

  The foldable adhesive tape or sheet of the present invention can be developed in a position located in the vertical width region of the waist portion on the back surface of the disposable diaper so that the longitudinal direction is the vertical direction and the waist portion is in the opening direction. When sticking in a form, one or two or more folding adhesive tapes or sheets can be used, but it is preferable to use only one. For example, one foldable adhesive tape or sheet can be unfolded in a portion located in the vertical width region of the waist portion on the back side surface of the paper diaper so that the longitudinal direction is the vertical direction and the waist portion is in the opening direction. When sticking in a form, as shown in FIG. 7, it is preferable to stick in such a form that the end part on which the knob part is formed is on the upper side.

  FIG. 7 is a schematic view showing an example of a paper diaper to which the folding adhesive tape or sheet of the present invention is attached. In FIG. 7, 1, 8, and A are the back sides of the foldable adhesive tape or sheet, the paper diaper, and the pants-type paper diaper, respectively, as described above.

  As described above, the foldable adhesive tape or sheet of the present invention is applied in a form that can be developed in the direction of the opening of the waist portion at a position located in the vertical width region of the waist portion on the back surface of the paper diaper. Then, when discarding the paper diaper, for example, the paper diaper is rolled up from the crotch part of the paper diaper in the direction of the body, and in this state, the folding adhesive tape or sheet is developed and the unfolded adhesive layer is used. Can be attached and restrained.

  In addition, since a folding type adhesive tape or sheet | seat can be expand | deployed easily in elongate shape, diaper replacement | exchange can be performed much more rapidly.

  Further, the foldable adhesive tape or sheet has little or no floating between each part of the support, and is extremely thin despite being folded, so it may be attached to a paper diaper in advance. The appearance of a paper diaper (especially a pants-type paper diaper) is good.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated more concretely, this invention is not limited only to an Example.

Example 1
As a support, a polypropylene sheet (trade name “Trephan” manufactured by Toray Industries, Inc .; thickness: 40 μm) cut into a width of 120 mm is used, and as shown in FIG. A silicone-based mold release treatment agent (trade name “UV-9300” manufactured by GE Toshiba Silicone Co., Ltd.) is applied to each predetermined portion so as to have a thickness of 0.5 μm, and cured to release the release treatment layer 3a2 (width). : 50 mm), after forming the release treatment layer 3 c 2 (width: 60 mm), as shown in FIG. 8B, a hot melt adhesive (trade name “Hirodyne 5153” manufactured by Yasuhara Chemical Co., Ltd.) has a thickness of 40 μm. The adhesive layer 3a1 (width: 43 mm) and the adhesive layer 3b1 (width: 10 mm) are formed and printed, and the knob layer printing layer 3a is applied. (Width: 7 mm) is formed, and then, as shown in FIG. 8 (c), a temporary fixing agent [(trade name “KRATON D-1124” manufactured by KRATON Polymers; styrene-isoprene-styrene block copolymer) ): 100 parts by weight (trade name “Chlorian M-115” manufactured by Yasuhara Chemical Co .; terpene resin): 60 parts by weight and (trade name “YS Resin TO-L” manufactured by Yasuhara Chemical Co .; terpene oil) : Temporary fixing agent containing resin composition mixed with 35 parts by weight; Melt viscosity at 160 ° C. (according to JIS K 6862): 420 Pa · s] is applied and cured to a thickness of 40 μm, and temporarily fixed The layer 3c1 (width: 46 mm) is formed, and as shown in FIG. 8 (d), the extension formed on the same surface of the support before folding. The unfolded adhesive layer 3a1 is folded at the boundary between the adhesive layer 3a1 and the release treatment layer 3c2 so that the portion of the release treatment layer 3c2 on the unfolded adhesive layer 3a1 side is in contact with and parallel to this folding. Then, the adhesive adhesive layer 3b1 is folded so that the end of the adhesive layer 3b1 does not overlap with the end of the temporary fixing layer 3c1 and is substantially the same part, and is located on the same surface side. As shown in FIG. 1 or 5, the surface of 3c1 and the exposed surface of the release treatment layer (3a2, 3c2) are overlapped so as to be in contact with each other and wound into a roll shape. A pressure-sensitive adhesive tape or sheet (foldable pressure-sensitive adhesive tape or sheet) wound in a rolled state in a state of having a configuration was produced.

  FIG. 8 is a schematic cross-sectional view showing a method for producing a foldable adhesive tape or sheet in Example 1. In FIG. 8, the reference numerals are the same as described above.

  Note that the foldable pressure-sensitive adhesive tape or sheet wound in the form of a roll was rewound and cut to a width of 20 mm, and the foldable pressure-sensitive adhesive tape or sheet was folded without being floated. It can be said that the adhesion in the state is good. In addition, the foldable adhesive tape or sheet has a thin support because the support is a single long sheet base material, and the number of layers of the support in the folded state is two. Moreover, it has flexibility.

  The folding type adhesive tape or sheet may be developed in a position located in the vertical width region of the waist part on the back side surface of the pants-type paper diaper, with the longitudinal direction being the vertical direction and in the opening direction of the waist part. A pants-type paper diaper provided with a foldable adhesive tape or sheet as shown in FIG.

(Evaluation)
When pants-type disposable diapers made according to the examples are used by 20 parents and their children (1 to 2 years old) arbitrarily selected in the normal use, and then the pants-type disposable diapers are discarded. When the foldable adhesive tape or sheet provided on the pants-type paper diaper was evaluated for use feeling, the results shown in Table 1 were obtained.

  From Table 1, it was confirmed that when the pants-type paper diaper provided with the foldable adhesive tape or sheet obtained in Example 1 is discarded, it can be developed with a good feeling of use. Therefore, a foldable adhesive tape or sheet has been obtained that can be folded in a form that can be easily deployed and that can shorten the overall length without shortening the deployed length. Was confirmed.

It is a schematic sectional drawing which shows an example of the adhesive tape or sheet | seat of this invention. It is a schematic sectional drawing which shows the other example of the adhesive tape or sheet | seat of this invention. Fig. 3 is a schematic cross-sectional view showing the folded adhesive tape or sheet, Fig. 3 (a) shows the folding adhesive tape or sheet of the present invention, and Fig. 3 (b) joins three supports. Fig. 3 (c) shows a conventional folded adhesive tape or sheet which is formed by being connected to each other and folded twice in an S-shape, and Fig. 3 (c) is formed by a single support and S The adhesive tape or sheet of the form bent and folded twice in the shape of a letter is shown. It is a schematic sectional drawing which shows an example of the method of producing the adhesive tape or sheet | seat of this invention, Fig.4 (a) shows the state in which each layer was formed in the predetermined site | part on a support body, FIG.4 (b) The support on which each layer is formed shows a state where the end of the adhesive layer is not substantially overlapped with the end of the temporary fixing layer and is folded in such a manner that it is located on the same surface side, FIG. 4 (c) shows a developed adhesive at the boundary between the developed adhesive layer and the release layer formed on the same surface of the support after folding as shown in FIG. 4 (b). It shows the folded state so that the layer and the release treatment layer are in contact with each other. It is a schematic sectional drawing which shows an example of the adhesive tape or sheet | seat of this invention, Fig.5 (a) makes the elongate continuous body in which the adhesive tape or sheet | seat of the folded state was formed continuously in roll shape FIG. 5B is a cross-sectional view taken along line X′-Y ′ in FIG. 5A, showing the pressure-sensitive adhesive tape or sheet wound in a superimposed manner. It is the schematic which shows an example of a pants-type paper diaper. It is the schematic which shows an example of the paper diaper in which the folding type adhesive tape or sheet | seat of this invention is affixed. In Example 1, it is a schematic sectional drawing which shows the method of producing a folding type adhesive tape or a sheet | seat.

Explanation of symbols

1 Adhesive tape or sheet 1a End where knob portion is formed (knob portion forming end)
1b End portion where knob portion is not formed (end portion where knob portion is not formed)
1c 1st fold part (1st fold part) from the knob part non-formation edge part 1b side at the time of bending twice and bending in S shape
1d Second fold portion (second fold portion) from the side where the knob portion non-formed end portion 1b is folded when folded twice into an S-shape
2 Support 2a End side part (deployment part) where the knob part of the support 2 is formed
2b End portion side portion (sticking portion) where the knob portion of the support 2 is not formed
2c The part between the crease parts of the support body 2 (the part between the 1-2 crease parts)
3a1 Adhesive layer (Development adhesive layer)
3a2 Release treatment layer (upper release treatment layer)
3a3 Knob print layer 3b1 Adhesive layer (adhesive adhesive layer)
3c1 Temporary fixing layer 3c2 Release treatment layer (internal release treatment layer)
4 Knob part X Length of sticking part 2b Y 1-2 Length of crease part 2c Z Length of unfolding part 2a 8 Pant-type paper diaper 8a Within the vertical width region of the waist part on the back side surface of the pant-type paper diaper Location 8b Waist opening A Back side of pants-type paper diaper B Waist side of pants-type paper diaper C Front side of pants-type paper diaper

Claims (8)

An adhesive layer, a temporary fixing layer, and a release treatment layer are formed at predetermined sites on both surfaces of the long support, and the two end portions are directed in different directions to form a bellows shape. It has a structure that is folded by folding twice or more, and a knob is formed at one end, and by pulling the knob, the end from which the knob is not formed A pressure-sensitive adhesive tape or sheet that can be elongated in the direction of the first crease from the part side, and the second crease from the end side where the knob is not formed is It has a configuration in which it is folded in a state of projecting from an end where no part is formed, and the length X of the part on the end side where the knob part is not formed is the end where the knob part is not formed The first crease part and the second crease part from the part side The length Z of the portion on the end side where the knob portion is formed is 1 from the end side where the knob portion is not formed. 95 to 100 with respect to the difference between the length Y of the portion between the first fold portion and the second fold portion and the length X of the portion on the end portion side where the knob portion is not formed. %, And has the following constitutions (a) to (d).
(A) The structure which has the adhesive layer for affixing on articles | goods on the surface of the site | part of the edge part side in which the knob part is not formed (b) The 1st crease | fold from the edge part side in which the knob part is not formed The portion on the side of the end portion where the knob portion is not formed in the portion between the first crease portion and the second fold portion is not overlapped with the portion on the end portion side where the knob portion is not formed (C) Surface between the crease portions at the end portion portion where the knob portion is formed (c) A structure having a temporary fixing layer to be affixed to the article at least partially on the exposed surface until it is developed into a long shape. And having a pressure-sensitive adhesive layer for attaching to an article in a form in which the knob portion is formed, and an end portion side portion where the knob portion is formed and an end portion side portion where the knob portion is formed The part between the creases facing each other is mold release (D) When it has a structure folded by folding it four times or more in a bellows shape, the parts between the folds facing each other are peeled off. Tailored configuration An adhesive layer, a temporary fixing layer, a release treatment layer are formed at predetermined sites on both surfaces of the long support, and the two end portions are oriented in different directions to form an S-shape. And a bent portion is formed at one end, and by pulling the knob, the end from which the knob is not formed is A pressure-sensitive adhesive tape or sheet that can be elongated in the direction of the first crease from the part side, and the second crease from the end side where the knob is not formed is It has a configuration in which it is folded in a state of projecting from an end where no part is formed, and the length X of the part on the end side where the knob part is not formed is the end where the knob part is not formed Between the first crease and the second crease The length Z of the part on the end part side where the knob part is formed is 1 from the end part side where the knob part is not formed. 95 to 100 with respect to the difference between the length Y of the portion between the first fold portion and the second fold portion and the length X of the portion on the end portion side where the knob portion is not formed. %, And has the following constitutions (a1) to (c1).
(A1) Configuration having a pressure-sensitive adhesive layer for affixing to an article on the surface of an end portion side where no knob portion is formed (b1) Knob portion in a portion between crease portions when folded into an S shape On the surface of the end portion side where no pin is formed, on the exposed surface that is not superimposed on the end portion portion where the knob portion is not formed, at least partially until the article is developed into a long shape (C1) In a form in which the knob portion is formed on the surface between the crease portions when folded into an S-shape at the end portion side portion where the knob portion is formed. An S-shape having a pressure-sensitive adhesive layer for attaching to an article and facing an end side portion where the knob portion is formed and an end side portion where the knob portion is formed The part between the creases when folded into Configuration keyed peelably by treatment layer There are two on the surface on the part side where the knob part is not formed at the part between the first crease part and the second crease part from the end part side where the knob part is not formed. The pressure-sensitive adhesive tape or sheet according to claim 1 or 2, wherein a temporary fixing layer is not formed at an end portion on the crease portion side of the eye. The pressure-sensitive adhesive tape or sheet according to any one of claims 1 to 3, wherein the support has a structure formed continuously from one end to the other end. The pressure-sensitive adhesive tape or sheet according to any one of claims 1 to 4, wherein the support is formed of a polyolefin-based resin. A paper diaper provided with a constraining adhesive tape or sheet for holding the paper diaper in a rolled state, and as the constraining adhesive tape or sheet, according to any one of claims 1 to 5 The paper diaper characterized by using the adhesive tape or sheet of description. The restraint pressure-sensitive adhesive tape or sheet is affixed to a portion located in a vertical width region of the waist portion on the back side surface of the paper diaper in a form capable of being developed in the opening direction of the waist portion. Paper diapers. The paper diaper according to claim 6, which is a pants-type paper diaper.

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