JP7083638B2 - Absorbent article - Google Patents

Description

The present invention relates to an absorbent article that is used while being attached to a worn article such as underwear.

Patent Document 1 discloses an absorbent article such as a menstrual napkin provided with a tape portion for post-treatment. The absorbent article of Patent Document 1 has an adhesive portion for stopping the absorbent article on the worn article, a back surface sheet provided with the adhesive portion, and a tape member for post-treatment provided on the back surface sheet. (See FIG. 22 of Patent Document 1). The tape member described in Patent Document 1 has a base portion and an extension portion connected to the base portion. The base is fixed to the back sheet (see FIG. 3 of Patent Document 1).

Japanese Unexamined Patent Publication No. 9-99010

The absorbent article of Patent Document 1 is attached to the inside of the worn article worn by the user when worn. The tape member is fixed to the back sheet and is arranged to face the worn article when worn. The base of the tape member is fixed to the back sheet, but the extension of the tape member is not fixed to the back sheet. Therefore, there may be a problem that the tape member is unintentionally broken or peeled off when the absorbent article is worn.

In particular, if a part of the absorbent article is turned over and the tape member is arranged so as to face the skin side, the tape member may be rubbed by the skin and the tape member may be unintentionally broken or peeled off. there were. As a result, it may not be possible to smoothly roll and dispose of using a tape member at the time of disposal.

Therefore, it is desired to have an absorbent article that protects the tape member for post-treatment before disposal of the absorbent article and can be disposed of cleanly by the tape member at the time of disposal.

The absorbent article according to one embodiment is arranged in the front-rear direction, the width direction orthogonal to the front-rear direction, the main body portion having the front surface sheet, the back surface sheet and the absorption core, and the back surface sheet, and is absorbent to the worn article. An absorbent article having an adhesive portion for fixing the article and a post-treatment tape member arranged on the back surface sheet, wherein the tape member is arranged on one end side of the tape member and the back surface thereof. It has a fixed portion fixed to the sheet and a non-fixed portion arranged on the other end side of the tape member and detachably arranged on the back surface sheet, and the adhesive portion is on one end side of the tape member. It has a pair of first adhesive portions arranged so as to sandwich the non-fixed portion in a second direction orthogonal to the first direction toward the other end side.

FIG. 1 is a plan view of the absorbent article according to the embodiment as viewed from the skin facing surface side. FIG. 2 is a plan view of the absorbent article according to the embodiment as viewed from the non-skin facing surface side. FIG. 3 is a cross-sectional view of the absorbent article along line AA shown in FIG. FIG. 4 is a perspective view of the absorbent article wound in the front-rear direction. FIG. 5 is a plan view of the absorbent article according to Modification 1 as viewed from the non-skin facing surface side. FIG. 6 is a plan view of the tape member of the absorbent article according to the modified example 2 and the modified example 3.

(1) Outline of Embodiment At least the following matters will be clarified by the description of this specification and the accompanying drawings.

The absorbent article according to one embodiment is arranged in the front-rear direction, the width direction orthogonal to the front-rear direction, the main body portion having the front surface sheet, the back surface sheet and the absorption core, and the back surface sheet, and is absorbent to the worn article. An absorbent article having an adhesive portion for fixing the article and a post-treatment tape member arranged on the back surface sheet, wherein the tape member is arranged on one end side of the tape member and the back surface thereof. It has a fixed portion fixed to the sheet and a non-fixed portion arranged on the other end side of the tape member and detachably arranged on the back surface sheet, and the adhesive portion is on one end side of the tape member. It has a pair of first adhesive portions arranged so as to sandwich the non-fixed portion in a second direction orthogonal to the first direction toward the other end side.

The non-fixed portion is sandwiched by a pair of first adhesive portions. When the pair of first adhesive portions is fixed to the worn article, the area between the first adhesive portions is maintained in a state of being sandwiched between the worn article and the back sheet and is not exposed. Therefore, it is possible to prevent the tape member from being unintentionally broken or peeled off when the absorbent article is worn.

Further, the pair of first adhesive portions are fixed to the worn article when worn. Therefore, even when the absorbent article is partially turned over, the pair of first adhesive portions and the area between them are maintained in a state toward the wearable article side and are not arranged so as to face the wearer's skin side. .. Since the non-fixed portion of the tape member is arranged in the region between the pair of first adhesive portions, the non-fixed portion is less likely to be rubbed by the skin, and it is possible to suppress a problem that the tape member is unintentionally broken or peeled off.

According to a preferred embodiment, the first adhesive portion extends in the first direction, has an overlapping region in which the first adhesive portion and the non-fixed portion overlap in the second direction, and the overlapping region of the overlapping region. The length of the first direction is 50% or more of the entire area of the non-fixed portion in the first direction.

According to such a configuration, it is possible to suppress the turning and peeling of the non-fixed portion in the area of more than half of the non-fixed portion, and it is effective that the tape member is unintentionally broken or peeled when the absorbent article is worn. Can be suppressed.

According to a preferred embodiment, the length of the overlapping region in the first direction is the length of the non-fixed portion in the first direction.

It is possible to suppress the turning and peeling of the non-fixed portion over the entire area of the non-fixed portion, and it is possible to effectively suppress the problem that the tape member is unintentionally broken or peeled when the absorbent article is worn.

According to a preferred embodiment, the first adhesive portion extends in the first direction, and the first adhesive portion straddles the other end of the tape member in the first direction.

Since the fixed portion is provided on one end side of the non-fixed portion, the end edge on the one end side of the non-fixed portion is difficult to turn over. On the other hand, the edge on the other end of the non-fixed portion is relatively easy to turn over. The other end of the tape member is the other end edge of the non-fixed portion on the other end side. Since the first adhesive portion straddles the other end of the tape member in the first direction, it is possible to suppress the turning of the end edge of the non-fixed portion on the other end side.

According to a preferred embodiment, the first adhesive portion extends in the first direction, and the first adhesive portion straddles the one end of the tape member in the first direction.

Since the first adhesive portion extends across one end of the tape member, it is possible to protect the edge of the fixed portion on one end side and suppress a problem that the fixed portion is unintentionally peeled off.

According to a preferred embodiment, the adhesive portion has a second adhesive portion arranged between the first adhesive portions, and the second adhesive portion is arranged on the other end side of the tape member. ..

The second adhesive portion can fix the other end side of the tape member to the worn article and protect the other end edge of the non-fixed portion.

According to a preferred embodiment, the adhesive portion has a third adhesive portion arranged between the first adhesive portions, and the third adhesive portion is arranged on the one end side of the tape member.

The third adhesive portion can fix one end side of the tape member to the worn article and protect the end edge of the fixed portion on one end side. Therefore, it is possible to suppress a problem that the fixed portion is unintentionally peeled off.

(2) Configuration of Absorbent Articles Hereinafter, the absorbent articles according to the embodiment will be described with reference to the drawings. The absorbent article may be an absorbent article such as a menstrual napkin, panty liner, breast milk pad, adult incontinence pad, fecal pad or sweat-absorbing sheet. The absorbent article may be an article attached and used inside a worn article such as underwear.

In the description of the drawings below, the same or similar parts are designated by the same or similar reference numerals. However, it should be noted that the drawings are schematic and the ratio of each dimension may differ from the actual one. Therefore, the specific dimensions, etc. should be determined in consideration of the following explanation. In addition, there may be a portion where the relationship and ratio of the dimensions of the drawings are different from each other.

FIG. 1 is a plan view of the absorbent article 10 according to the first embodiment as viewed from the skin facing surface side. FIG. 2 is a plan view of the absorbent article 10 according to the first embodiment as viewed from the non-skin facing surface side. Here, the "skin facing surface side" corresponds to the side facing the wearer's skin during use. The "non-skin facing side" corresponds to the side facing away from the wearer's skin during use. FIG. 3 is a cross-sectional view taken along the line AA shown in FIG. 1, and FIG. 4 is a perspective view of an absorbent article wound in the front-rear direction.

The absorbent article 10 has an anteroposterior direction L and a width direction W. The anteroposterior direction L is a direction extending from the front side (ventral side) of the wearer to the rear side (dorsal side), or a direction extending from the rear side of the wearer to the front side. The width direction W is a direction orthogonal to the front-rear direction L.

The absorbent article 10 has a main body portion 20 and a tape member 60 for post-treatment. The main body 20 includes a front surface sheet 21 facing the wearer's skin, a back surface sheet 22 facing the side opposite to the wearer's skin, and an absorption core 23 arranged between the front surface sheet 21 and the back surface sheet 22. ,including. The surface sheet 21 faces the wearer's skin during use. The back sheet 22 is turned to the side opposite to the wearer's skin during use. The absorption core 23 contains an absorbent material that absorbs body fluids and extends along the anterior-posterior direction L of the absorbent article.

The main body 20 may have a wing 40 and a hip flap 50. The wing 40 is folded back toward the non-skin facing surface side of the crotch portion of the worn article during use. The hip flap 50 is a portion that bulges in the width direction W behind the wing 40. The hip flap 50 is a portion that bulges outward from the outer edge of the absorption core 23 in the width direction W.

The main body 20 has an excretion opening facing area S1 facing the wearer's excretion opening (for example, vaginal opening) during use. The main body 20 has an excretion opening facing area S1 facing the wearer's excretion opening (for example, vaginal opening) during use. The excretion opening facing area S1 is a region arranged between the wearer's inseam, that is, both feet of the wearer, and corresponds to a region where the absorption core 23 is present.

The absorbent article 10 may have creases extending along the width direction W. In the example shown in FIGS. 1 and 2, the fold of the absorbent article 10 has a first fold F1, a second fold F2, and a third fold F3. The first fold F1 is the fold closest to the front edge E1 of the absorbent article 10. The second fold F2 is the fold closest to the trailing edge E2 of the absorbent article 10. The third fold F3 is arranged between the first fold F1 and the second fold F2. In addition, four or more creases may be provided. The crease is a line for folding the absorbent article 10 with the skin-facing surface side of the absorbent article inside when the absorbent article is packaged.

As shown in FIG. 2, the main body portion 20 may have an adhesive portion 70 provided on the non-skin facing surface side of the back surface sheet 22. The adhesive portion 70 is a region provided with an adhesive for fixing the absorbent article 10 to the worn article. The absorbent article 10 can be fixed to worn articles such as underwear by the adhesive portion 70 provided on the non-skin facing surface side of the back sheet 22. Further, after the absorbent article 10 is used, the adhesive portion 70 can hold the tape member 60 in a wound state and maintain the wound state. Therefore, the adhesive portion 70 can be used for both purposes of fixing to clothes and for fixing a tape member for post-treatment.

The adhesive portion 70 is provided in a region overlapping the absorption core 23 in the thickness direction of the absorbent article 10. It is preferable that the adhesive portion 70 extends continuously or intermittently from at least the area facing the excretion opening S1 to the rear of the absorbent article 10. A plurality of adhesive portions 70 extend in the front-rear direction and are provided at intervals in the width direction. In another form, a plurality of adhesive portions 70 may be provided so as to extend in the width direction W and at intervals in the front-rear direction. Further, the main body portion 20 may have a wing adhesive portion 42 provided on the wing 40 and a flap adhesive portion 52 provided on the hip flap 50.

The absorbent article 10 may have a release sheet 75 that covers the adhesive portion 70. The release sheet 75 protects the adhesive portion 70 so that the adhesive portion 70 does not deteriorate before the use of the absorbent article 10. The area of the release sheet 75 is larger than the area of the adhesive portion 70 in order to cover the entire adhesive portion 70. When the release sheet 75 is peeled off when the absorbent article is used, the adhesive portion 70 is exposed, and the absorbent article 10 can be fixed to the worn article by the adhesive portion 70.

Further, in another form, the adhesive portion 70 may be protected by the packaging sheet for packaging the absorbent article so that the adhesive portion 70 does not deteriorate before the use of the absorbent article 10. In this case, the area of the packaging sheet is larger than the area of the adhesive portion 70 in order to cover the entire adhesive portion 70. When the absorbent article is peeled off from the packaging sheet when the absorbent article is used, the adhesive portion 70 is exposed, and the adhesive portion 70 can stop the absorbent article 10 on the worn article.

The tape member 60 is fixed to the main body 20. As shown in FIGS. 3 and 4, the tape member 60 may have a fixing portion 62 fixed to the main body portion 20. The fixing portion 62 may be provided on one end side of the tape member 60. The fixing portion 62 may be fixed to the main body portion 20 by an adhesive means such as an adhesive. The fixing portion 62 may be fixed to the back surface sheet 22 constituting the non-skin facing surface of the main body portion 20. The fixing portion 62 is provided at the trailing end edge, which is one end 60A in the first direction. The fixed portion does not have to coincide with one end 60A, and may be separated from one end 60A. The fixing portion 62 may be arranged at one end 60A side from the center of the tape member 60 in the first direction.

The first direction D1 is a direction extending from one end 60A side where the fixed portion 62 is provided to the other end 60B side where the non-fixed portion 64 is provided. The second direction D2 is a direction orthogonal to the first direction D1. The first direction D1 may be a direction in which the tape member 60 is pulled out during operation. The first direction D1 may be a direction in which the fixed portion 62 and the non-fixed portion 64 are adjacent to each other. The length of the tape member 60 in the first direction D1 may be longer than the length of the tape member 60 in the second direction D2. The first direction D1 of the present embodiment is the front-rear direction L, and the second direction D2 is the width direction W. Further, in another form, the first direction D1 may be the width direction W and the second direction D2 may be the front-back direction L.

Further, the tape member 60 may have a non-fixed portion 64 which is removably arranged on the back surface sheet 22. The non-fixing portion 64 is provided on the other end 60B side of the tape member 60. The non-fixed portion 64 is provided on the front end edge which is the other end 60B of the first direction D1. It is sufficient that at least a part of the non-fixed portion is arranged on the other end 60B side of the center of the tape member 60 in the first direction. In the form in which the non-fixed portion is arranged on both sides of the fixed portion in the first direction, the non-fixed portion having a long length in the first direction constitutes the non-fixed portion of the present invention. That is, non-fixed portions 64 may be provided on both sides of the fixed portion 62 in the first direction. In this case, the non-fixed portion 64 side having a long length in the first direction is the other end side, and the non-fixed portion side having a short length in the first direction is the one end side.

The non-fixing portion 64 is a portion that is not fixed to the back surface sheet 22 and the user operates the tape member 60. More specifically, when using the tape member 60, the user grips the non-fixed portion 64 and folds back the non-fixed portion with the fixed portion 62 as a base point, or extends the non-fixed portion 64 in the first direction. Then, the non-fixed portion 64 is fixed to the main body portion 20. At least a part of the non-fixed portion 64 constitutes a grip portion that can be gripped by the user. The grip portion may be provided over the entire non-fixed portion 64, or may be provided on one end side of the non-fixed portion 64 opposite to the fixed portion 62.

The tape member 60 has one end 60A located on the fixed portion 62 side, the other end 60B on the non-fixed portion 64 side, and a pair of side edges 60C extending from one end 60A toward the other end 60B.

When the absorbent article 10 is disposed of, the tape member 60 is fastened to the main body 20 in a state where the absorbent article 10 is wound with the skin facing surface side inside, and the absorbent article 10 is maintained in the wound state. It may be configured as follows. The non-fixed portion 64 of the tape member 60 is configured to be attachable to the main body portion 20. The configuration in which the non-fixing portion 64 is fastened to the main body portion 20 may be the adhesive portion 70, or may be a fastening means such as an adhesive or a hook member provided on the tape member 60.

The non-fixed portion 64 of the tape member 60 of the present embodiment is fixed to the main body portion 20 at the time of disposal via the adhesive portion 70. In the configuration in which the tape member 60 is fastened to the main body 20 by the adhesive portion, the non-fixing portion 64 may not be provided with a fixing means such as an adhesive. Further, the tape member 60 may be fastened to at least one of the wing adhesive portion 42 and the flap adhesive portion 52.

The tape member 60 is configured to extend outward from the outer edge 20E of the main body portion 20. In the tape member 60 of the present embodiment, at least a part of the non-fixed portion 64 extends outward from the outer edge 20E of the main body portion 20 by folding back the non-fixed portion 64 with the fixed portion 62 as a base point. As shown in FIG. 2, the tape member 60 may be arranged inside the outer edge 20E of the main body 20 in a state where the tape member 60 is not folded back. The tape member 60 may be hidden behind the main body 20 when viewed from the skin facing surface side. As shown in FIG. 4, the tape member 60 may extend outward from the outer edge 20E of the main body 20 in the folded state. After using the absorbent article 10, the user winds the main body 20 in the front-rear direction L, extends the tape member 60 outward from the outer edge 20E of the main body 20, and stops the tape member 60 on the main body 20. You can wear it (see Figure 4).

As another form, the tape member may be configured to be stretchable in the stretch direction. In this case, when the user pulls the tape member, the tape member extends outward from the outer edge 20E of the main body portion 20. Here, "elongation" includes elongation due to "elastic deformation" or "plastic deformation". As an example, the tape member 60 may be composed of an elastic sheet and a film. As yet another example, the tape member may be composed of a Z-shaped folded sheet. In this case, when the user pulls the tip of the tape member, the folded tape member is unfolded, whereby the tape member extends outward from the outer edge 20E of the main body portion 20.

According to such a configuration, during the use of the absorbent article 10, the tape member 60 is arranged on the non-skin facing surface side of the back surface sheet 22 and inside the outer edge 20E of the main body portion 20. No body fluids like blood are attached. After using the absorbent article 10, the user can maintain the absorbent article 10 in a rolled state by fixing the tape member 60 extending outward to the adhesive portion 70 or the like. Here, since body fluid such as menstrual blood does not adhere to the tape member 60, it is possible to prevent a decrease in the bonding force between the tape member 60 and the adhesive portion 70 or a decrease in the bonding force of the fixing means of the tape member. .. Further, during the use of the absorbent article 10, the tape member 60 is provided on the non-skin facing surface side of the back surface sheet 22 and does not extend outward from the outer edge 20E of the main body portion 20, so that the tape member 60 is worn. Does not hit the person's skin directly. Therefore, it is possible to reduce discomfort and discomfort during use.

The tape member 60 is preferably provided on the rear side of the center of the main body 20 in the front-rear direction L. When rolling the absorbent article 10, the user usually begins to roll the absorbent article 10 in the anteroposterior direction L from the front edge E1 or the trailing edge or E2 of the absorbent article 10. Of these, about 80% of users start rolling from the front edge E1 of the absorbent article 10. Therefore, it is preferable that the tape member 60 is provided in a region located on the rear side with respect to the center in the front-rear direction L. At least a portion of the tape member 60 may be located across the trailing edge of the absorption core 23 or behind the trailing edge of the absorption core.

Preferably, the tape portion 80 may be provided on the rear side of the second fold F2, which is the rearmost side of the first fold F1 to the third fold F3. As described above, about 80% of users start winding the absorbent article 10 after use from the front side. Since the tape portion 80 is provided on the rear side of the second fold F2, many users can start rolling from the front end edge E1 of the absorbent article 10 and fasten the winding end portion by the tape portion 80.

An example of a specific configuration of the absorbent article of the present embodiment is shown. The surface sheet may be composed of an air-through nonwoven fabric (PE / PET) having a basis weight of 30 g / m ² . A second sheet may be provided between the surface sheet and the absorbent core. The second sheet may be made of the same material as the surface sheet. The surface sheet may not be arranged but the side sheet may be arranged on the outside of the main body in the width direction. The side sheet may be made of SMS non-woven fabric (PP) having a basis weight of 13 g / m ² . The absorbent material of the absorbent core may be composed of softwood kraft pulp and a highly absorbent polymer. The ratio of the weight of the highly absorbent polymer to the weight of the total absorbent material may be 10%. The basis weight of the absorption core in the region including the excretion opening facing region S1 may be configured to be higher than the basis weight of the surrounding absorption core. The basis weight of the absorption core in the region including the excretion opening facing region S1 may be 950 g / m ² , and the basis weight of the surrounding absorption core may be 300 g / m ² . The back sheet may be composed of a polyethylene film (non-breathable type) having a basis weight of 23.5 g / m ² . The absorbent article may be formed with a squeezed portion in which the surface sheet and the absorbent core are squeezed in the thickness direction. The main body adhesive portion may be composed of a rubber-based hot melt type adhesive. The basis weight of the adhesive portion of the main body may be 27 g / m ² . Six main body adhesive portions may be provided with a space in the width direction. The length of each main body adhesive portion in the width direction may be 5 mm, and the length of each main body adhesive portion in the front-rear direction may be 320 mm. The length of the absorbent article in the anteroposterior direction may be 420 mm, and the length of the absorbent article in the width direction may be 200 mm. The tape member for post-treatment may be composed of a polyethylene film having a basis weight of 35 g / m ² . The length of the tape member in the longitudinal direction may be 45 mm, and the length of the tape member in the lateral direction may be 25 mm. The tape member may be fixed to the main body portion with a rubber-based hot melt type adhesive of 100 g / m ² . The adhesive may be applied in the range of width 21 mm and length 5 mm. Printing may be applied to the back surface of the tape member on the sheet side. For printing, urethane-based ink of pink thread may be used. The elongating tape member may be composed of a laminate of a polypropylene layer having a basis weight of 10 g / m ² and a styrene-based rubber layer having a basis weight of 10 g / m ² and a polypropylene layer having a basis weight of 10 g / m ² .

Next, the positional relationship between the tape member 60 and the adhesive portion 70 configured in this way will be described. The adhesive portion 70 may have a first adhesive portion 71. The first adhesive portion 71 is arranged so as to sandwich the non-fixed portion 64 in the width direction W which is the second direction D2. The first adhesive portion 71 is arranged outside the non-fixed portion 64 in the first direction. The first adhesive portion 71 may extend in the front-rear direction L, which is the first direction D1. In another embodiment, the first adhesive portion 71 may extend in the width direction W, which is the second direction. The configuration extending in the first direction may be any configuration having a certain range in the first direction, and is not limited to a configuration in which the length in the first direction is longer than the length in the second direction, and the length in the second direction. Is a concept that includes a configuration in which the length is longer than the length in the first direction. The first adhesive portion 71 of the present embodiment extends in the first direction and is provided in at least two rows. The rear edge, which is the outer edge of the first direction D1 of the first adhesive portion 71, is located on the outer side (rear side) in the front-rear direction from the front edge, which is the inner edge of the first direction D1 of the non-fixed portion 64. You can do it. In the width direction W, which is the second direction, the tape member 60 and the non-fixed portion 64 may overlap each other. Further, a plurality of adhesive portions may be arranged at intervals, may be arranged at intervals in the first direction, may be arranged at intervals in the second direction, or may be arranged at intervals in the first direction. They may be spaced apart from each other and at intervals in the second direction.

As shown in FIG. 2, an overlapping region RA in which the first adhesive portion 71 and the non-fixed portion 64 overlap in the width direction W, which is the second direction, may be provided. The overlapping region RA may be a region where the first adhesive portion 71 and the non-fixed portion 64 overlap when viewed from the side in the width direction W. In the configuration in which the first adhesive portion 71 extends forward from the front end edge of the non-fixed portion 64, the length of the overlapping region RA in the front-rear direction L is the front end edge of the non-fixed portion 64 and the first adhesive portion. The distance from the trailing edge of 71. Further, in the configuration in which the first adhesive portion 71 extends to the rear side from the rear end edge of the non-fixed portion 64, the length of the overlapping region RA in the front-rear direction L is the rear end edge of the non-fixed portion 64. Is the distance from the front edge of the first adhesive portion 71.

Since the non-fixed portion 64 is configured to be peelable from the back surface sheet 22, it is likely to lift up from the back surface sheet 22 and may be unintentionally turned over or peeled off. However, the non-fixed portion 64 is sandwiched by a pair of first adhesive portions 71. When the pair of first adhesive portions 71 are fixed to the worn article (underwear), the area between the first adhesive portions 71 is maintained in a state of being sandwiched between the worn article and the back surface sheet 22 and is not exposed. Therefore, it is possible to prevent the tape member 60 from being unintentionally broken or peeled off when the absorbent article 10 is worn.

Further, since the pair of first adhesive portions 71 are fixed to the worn article at the time of wearing, even when the absorbent article 10 is partially turned over, the pair of first adhesive portions and the area between them are worn. The state toward the article side is maintained, and it is not arranged so as to face the wearer's skin side. Since the non-fixed portion 64 of the tape member 60 is arranged in the region between the pair of first adhesive portions 71, the non-fixed portion 64 is not easily rubbed by the skin, and the tape member 60 is unintentionally broken or peeled off. Can be suppressed.

In order to suppress defects such as turning over of the non-fixed portion 64, the length of the first direction D1 of the overlapping region RA may be 50% or more with respect to the entire area of the non-fixed portion 64 in the first direction. According to such a configuration, it is possible to suppress the turning and peeling of the non-fixed portion in a region of more than half of the non-fixed portion 64, and it is effective that the tape member is unintentionally broken or peeled when the absorbent article is worn. Can be suppressed.

More preferably, the length of the overlapping region RA in the first direction D1 may be the length of the non-fixed portion 64 in the first direction D1. According to such a configuration, it is possible to suppress the turning and peeling of the non-fixed portion 64 over the entire area of the non-fixed portion 64, and it is effective that the tape member is unintentionally broken or peeled when the absorbent article is worn. Can be suppressed.

The first adhesive portion 71 may straddle the other end 60B of the tape member 60 in the first direction D1. The first adhesive portion 71 may extend to the outside of the first direction D1 with respect to the other end 60B of the tape member 60. Since the fixed portion 62 is provided on the one end 60A side of the non-fixed portion 64, the end edge (front end edge) on the one end side of the non-fixed portion is difficult to turn over. On the other hand, the end edge (rear end edge) on the other end 60B side of the non-fixed portion 64 is relatively easy to turn over. The other end 60B of the tape member 60 is an end edge (front end edge) on the other end side of the non-fixed portion 64. Since the first adhesive portion 71 extends across the other end 60B of the tape member 60, it is possible to suppress the turning of the end edge of the non-fixed portion 64 on the other end side.

The adhesive portion 70 may have a second adhesive portion 72. The second adhesive portion may extend in the first direction between the first adhesive portions. The second adhesive portion may be arranged on the other end side of the tape member 60. The second adhesive portion 72 may overlap the tape member 60 in the front-rear direction L, which is the first direction. The second adhesive portion 72 of the present embodiment extends to the front side of the tape member 60. The second adhesive portion 72 may be in one or more rows. The second adhesive portion 72 can fix the other end 60B side of the tape member to the worn article and protect the end edge of the non-fixing portion 64 on the other end 60B side. Therefore, it is possible to suppress the turning of the edge on the other end side of the non-fixed portion 64.

Further, the tape member 60 may be protected even in a state before wearing. Specifically, at least a part of the release sheet 75 may be arranged in a region overlapping the tape member 60 in the thickness direction T. Preferably, the release sheet 75 may overlap the non-fixed portion in the thickness direction. The release sheet 75 may cover the front edge of the tape member 60, which is the other end 60B. The length of the release sheet 75 in the width direction W may be longer than the length of the tape member 60 in the width direction W. The tape member 60 is protected by a release sheet over its entire width, and can prevent the tape member 60 from being unintentionally bent or bent before the use of the absorbent article. Further, in another form, at least a part of the packaging sheet may be arranged in a region overlapping the tape member 60 in the thickness direction T.

Next, the absorbent article according to another embodiment will be described. In the following description, the same parts as those in the above-described embodiment will be omitted by using the same reference numerals. FIG. 5 is a plan view of the absorbent article 10A according to Modification 1 as viewed from the non-skin facing surface side.

In the absorbent article 10A according to the first modification, one end 60A of the tape member is the front end edge of the tape member, and the other end 60B of the tape member is the rear end edge of the tape member.

The first adhesive portion 71 may straddle one end 60A of the tape member 60 in the first direction. The first adhesive portion 71 may extend to the outside of the tape member 60 in the first direction D1 from one end 60A of the tape member 60. One end 60A of the tape member 60 is an end edge (rear end edge) on the one end side of the fixing portion. Since the first adhesive portion 71 extends across one end 60A of the tape member 60, it is possible to protect the end edge of the fixing portion 62 on the one end side and suppress a problem that the fixing portion 62 is unintentionally peeled off.

The adhesive portion 70 may have a third adhesive portion 73. The third adhesive portion 73 may extend in the first direction between the first adhesive portions 71. The third adhesive portion may be arranged on one end side of the tape member. The third adhesive portion 73 may overlap the tape member 60 in the front-rear direction L, which is the first direction. The third adhesive portion 73 of the present embodiment extends to the front side of the tape member 60. The third adhesive portion 73 may be in one or more rows. The third adhesive portion 73 can fix one end 60A side of the tape member to the worn article and protect the end edge of the fixing portion 62 on the one end 60A side. Therefore, it is possible to suppress a problem that the fixing portion 62 is unintentionally peeled off.

As another form, a temporary fixing portion 66 (see FIG. 6) may be provided on the non-fixing portion 64 of the tape member 60. The temporary fixing portion 66 may be detachably joined to the back surface sheet 22 which is the non-skin facing surface of the main body portion 20. By providing the temporary fixing portion 66, it is possible to prevent the non-fixing portion 64 from being rolled up or the non-fixing portion 64 from being broken before the tape member 60 is used (during manufacturing or wearing).

The joining force of the temporary fixing portion 66 may be lower than the joining force of the fixing portion 62. Since the joining force of the temporary fixing portion 66 is lower than the joining force of the fixing portion 62, the user can easily peel off the temporary fixing portion 66 when using the tape member 60, grasp the non-fixing portion 64, and operate the tape member 60. can do. Examples of the fixing means for the temporary fixing portion 66 include adhesive, embossing, heat welding, and ultrasonic welding. The amount of adhesive applied (area, grain) is smaller than that of the fixing portion 62, and the fixing portion 62 is used. Can also weaken the embossing squeeze. Further, the temporary fixing portion 66 may be formed by embossing the outer edge of the main body portion.

The joining force can be measured with a tensile tester (manufactured by Instron Japan Company Limited, model 5543). For example, the joining force is measured as follows. First, the test piece of the tape member and the test piece of the back sheet are fixed to the upper fixing portion and the lower fixing portion of the tensile tester. The test piece fixed to the upper fixing part and the lower fixing part has a width of 10 mm. A fixing surface corresponding to the fixing portion 62 is formed between the test piece fixed to the upper fixing portion and the test piece fixed to the lower fixing portion. The relative displacement speed between the upper fixed portion and the lower fixed portion of the tensile tester is set to 100 mm / min, and the maximum load point while the joint is peeled off is set as the bonding force (adhesive strength).

FIG. 6 is a tape member of the absorbent article according to the modified example 2 and the modified example 3, and shows an example of the temporary fixing portion 66. FIG. 6A is a plan view of the tape member 60D according to the modified example 2, and FIG. 6B is a tape member 60E according to the modified example 3. The tape member 60D and the tape member 60E are provided with a coating region to which an adhesive is applied. The coating region may have a first coating region R1 provided in the fixed portion 62 and a second coating region R2 provided in the temporary fixing portion 66 of the non-fixed portion 64. The area ratio of the second coating region R2 (ratio of the area of the coating region per unit area) may be lower than the area ratio of the first coating region R1. The basis weight of the adhesive in the second coating area R2 may be lower than the basis weight of the adhesive in the first coating area R1. Preferably, the basis weight of the second coating region R2 is low, and the area ratio of the first coating region may be low. The length of the first coating region R1 in the width direction may be longer than the length of the second coating region R2 in the width direction. The length of the second coating region R2 in the width direction becomes shorter as the distance from the first coating region R1 increases. That is, the amount of the adhesive applied in the coating area decreases from the one end 60A side of the tape member 60D toward the other end 60B of the tape member 60. The second coating region R2 may include a region where the adhesive is applied to the spots and a region where the adhesive is applied in dots as shown in FIG. 6 (b).

According to such a configuration, the joining force of the fixing portion 62 can be made smaller than the joining force of the temporary fixing portion 66. Further, in the step of applying the adhesive, the state in which the nozzle for ejecting the adhesive is in contact with the tape member may be maintained, and the adhesive ejected from the nozzle may be adjusted. Specifically, the adhesive is sprayed toward the region where the fixing portion 62 is provided, and the spraying of the adhesive is stopped at the region at the end of the fixing portion 62. The adhesive is viscous, and even if the injection is stopped, the injection amount does not become zero immediately, and the injection amount gradually decreases. The temporary fixing portion 66 can be formed by the adhesive whose injection amount is gradually reduced. In such a temporary fixing portion 66, the joining force gradually decreases as the distance from the fixing portion 62 increases. The end edge on the other end 60B side of the temporary fixing portion 66 (the end edge on the non-fixing portion 64 side) may reach the other end 60B of the tape member 60D. The temporary fixing portion 66 may be provided together with the first adhesive portion 71 according to the present invention, or may be provided in place of the first adhesive portion 71 according to the present invention.

It is possible to provide an absorbent article that protects the post-treatment tape member before disposal of the absorbent article and can be cleanedly disposed of by the tape member at the time of disposal.

Although the present invention has been described in detail using the above-described embodiments, it is clear to those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as modifications and modifications without departing from the spirit and scope of the present invention as determined by the description of the scope of claims. Therefore, the description of the present specification is for the purpose of exemplary explanation and does not have any limiting meaning to the present invention. For example, the first direction may be the width direction and the second direction may be the front-back direction.

10, 10A Absorbent article 20 Main body 21 Front sheet 22 Back sheet 23 Absorption core 60 Tape member 62 Fixed part 64 Non-fixed part 70 Adhesive part 71 First adhesive part 72 Second adhesive part 73 Third adhesive part RA Overlapping area L Front-back direction W width direction

Claims (11)

In the front-back direction and
The width direction orthogonal to the front-back direction and
The main body having a front sheet, a back sheet and an absorption core,
An adhesive portion arranged on the back sheet and fixing the absorbent article to the worn article when the absorbent article is used ,
An absorbent article having a post-treatment tape member arranged on the back sheet.
The tape member is a non-fixed portion arranged on one end side of the tape member and fixed to the back surface sheet, and non-fixed portion arranged on the other end side of the tape member and detachably arranged on the back surface sheet. With a part,
The adhesive portion includes a pair of first adhesive portions arranged with the non-fixed portion interposed therebetween in a second direction orthogonal to the first direction from one end side of the tape member to the other end side, and the second adhesive portion. It has a second adhesive portion arranged between the first adhesive portions in the direction, and has.
The second adhesive portion is an absorbent article arranged on the other end side of the tape member . The first adhesive portion extends in the first direction, and the first adhesive portion extends in the first direction.
The first adhesive portion and the non-fixed portion have an overlapping region where they overlap in the second direction.
The absorbent article according to claim 1, wherein the length of the overlapping region in the first direction is 50% or more with respect to the entire area of the non-fixed portion in the first direction. The absorbent article according to claim 2, wherein the length of the overlapping region in the first direction is the length of the non-fixed portion in the first direction. The first adhesive portion extends in the first direction, and the first adhesive portion extends in the first direction.
The absorbent article according to claim 1 or 2 , wherein the first adhesive portion straddles the other end of the tape member in the first direction. The first adhesive portion extends in the first direction, and the first adhesive portion extends in the first direction.
The absorbent article according to claim 1 or 2 , wherein the first adhesive portion straddles the one end of the tape member in the first direction. The adhesive portion has a third adhesive portion arranged between the first adhesive portions.
The absorbent article according to claim 1 or 2 , wherein the third adhesive portion is arranged on the one end side of the tape member. The absorbent article according to claim 1 or 2 , wherein the tape member extends outside the first direction from the edge of the adhesive portion in the first direction. A release sheet covering the adhesive portion is provided before use of the absorbent article.
A part of the non-skin surface side of the tape member is covered with the release sheet.
The absorbent article according to claim 1 or 2 , wherein the release sheet extends outside the first direction from the edge of the adhesive portion in the first direction. The absorbent article is folded from a plurality of creases extending along the width direction as a base point.
The absorbent article according to claim 1 or 2 , wherein the tape member is provided on the rear side of the rearmost fold among the plurality of folds. The adhesive portion has a flap adhesive portion provided on a hip flap that bulges outward from the outer edge of the absorption core in the width direction.
The absorbent article according to claim 1 or 2 , wherein the tape member is provided on the rear side of the flap adhesive portion. The tape members are arranged apart from each other without overlapping the adhesive portion.
The second adhesive portion is arranged on the front side of the tape member.
The absorbent article according to claim 1 or 2, wherein the first adhesive portion is located on both sides of the tape member in the width direction.

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