JP7129131B2 - Adhesive film storage box and adhesive film storage device - Google Patents

Description

The present application relates to an adhesive film storage box for storing a wound body configured by winding an adhesive film with high adhesiveness such as an infection prevention film, and an adhesive film storage device in which the wound body is stored in the adhesive film storage box. Regarding.

For example, in the medical field, a doctor may input patient information into a personal computer to prepare a medical record while diagnosing and treating a patient. At this time, the hand that touched the patient may touch the keyboard of the personal computer. If the patient's bodily fluid or the like adheres to the keyboard, it is not preferable because there is a fear of infection among medical workers such as doctors and nurses.

JP 2015-83484 A

Therefore, for example, we are thinking of attaching a highly adhesive infection prevention film to the surface of the keyboard of a personal computer, peeling it off after using the keyboard, and throwing it away.

However, in order to make it easier for healthcare workers to use adhesive films such as the infection prevention film described above, there is a storage container for adhesive films that can store adhesive films and cut the adhesive films to a desired length at the time of use. Not developed.

Conventionally, there is a wrap film storage box (see Patent Document 1) for storing wrap film rolls wound with wrap film. However, if this wrap film storage box is used to store the adhesive film with high adhesiveness as described above, the adhesive film will easily adhere to the box when the adhesive film is pulled out of the box, and once adhered, the adhesive film will be pulled. It takes a lot of force to pull it out. As a result, the adhesive film may not be properly pulled out, resulting in unsatisfactory drawing.

The present application has been made in view of the above points, and an object of the present application is to provide an adhesive film storage box and an adhesive film storage device in which an adhesive film can be stored and which can be pulled out appropriately when used.

As a result of extensive research, the present inventors have found that the shear peel force of the adhesive film in contact with at least a part of the front plate that contacts the pulled adhesive film is 5.0 N / 25 mm or less. The inventors have found that the above problem can be solved by providing the reducing portion, and have completed the present invention. That is, aspects of the present invention include the following.

(1) An adhesive film storage box for storing a roll wound with an adhesive adhesive film, the box having at least a front plate, a bottom plate, a rear plate and a side plate, and having an open upper surface; and a lid portion capable of opening and closing the opening on the upper surface of the main body portion, and at least a part of the portion of the front plate that comes into contact with the adhesive film to be pulled out has a shear peeling force of 6 for the adhesive film in contact. An adhesive film storage box provided with a shear peel force reducing portion of 0 N/25 mm or less.
(2) The adhesive film storage box according to (1), wherein the shear peel force reducing portion has a structure that reduces the contact area between the front plate and the adhesive film.
(3) The adhesive film storage box according to (2), wherein the shear peel force reducing portion has a structure in which a convex portion, a concave portion, or an uneven portion is provided at a portion of the front plate that contacts the adhesive film.
(4) The adhesive film storage box according to (2), wherein the shear peel force reducing portion has a structure in which a surface of a portion that contacts the adhesive film is coated with a paint that reduces the contact area.
(5) The adhesive film storage box according to (2), wherein the shear peel force reducing portion has a structure in which a surface of a portion that contacts the adhesive film has a material that reduces the contact area.
(6) The pressure-sensitive adhesive film storage box according to any one of (1) to (5), wherein the shear peel force reducing portion is provided on at least part of the outer surface, the inner surface and the upper end of the front plate.
(7) The pressure-sensitive adhesive film storage box according to (6), wherein the shear peel force reducing portion is provided at least in regions near both ends in the left-right direction of the inner surface of the front plate.
(8) The adhesive film storage box according to (6) or (7), wherein the shear peel force reducing portion is provided in a region near the upper end of the outer surface of the front plate.
(9) A cutting portion is provided at the tip of the lid portion, and the shear peel force reducing portion is located at the cutting portion on the outer surface of the front plate when the lid portion closes the opening of the main body portion. The adhesive film storage box according to (8), which is provided in a region above the corresponding position.
(10) A cutting portion is provided at the tip of the lid portion, and the shear peel force reducing portion is located at the cutting portion on the outer surface of the front plate when the lid portion closes the opening of the main body portion. The adhesive film storage box according to (8), wherein a locking portion for locking the adhesive film is provided in a corresponding position and above the region.
(11) The adhesive film storage according to any one of (6) to (10), wherein a tab piece is provided on the outer surface of the front plate, and the shear peel force reducing portion is provided on the tab piece. box.
(12) The adhesive film storage box according to any one of (6) to (11), wherein the shear peel force reducing portion is provided at least in a region near the center in the left-right direction of the upper end of the front plate.
(13) An adhesive film storage device in which a wound body is stored in the adhesive film storage box according to any one of (1) to (12).

ADVANTAGE OF THE INVENTION According to this invention, an adhesive film can be accommodated and it can draw out appropriately at the time of use.

It is a perspective view which shows an example of the external appearance of an adhesive film storage apparatus. FIG. 3 is a perspective view showing the adhesive film storage device when the lid is opened; It is a perspective view which shows the structure of a winding body and an adhesive film storage box. It is a developed view of the surface side of the adhesive film storage box. It is explanatory drawing which shows the structure of the side part of an adhesive film storage box. It is sectional drawing of an adhesive film storage apparatus. It is an explanatory view of a longitudinal section of the adhesive film storage box for explaining the height of the front plate. FIG. 10 is a perspective view of the adhesive film storage box when tearing off the opening piece; It is explanatory drawing which shows the inner surface of a front plate. FIG. 4 is an explanatory view showing a coating area of the front plate; It is a schematic diagram which shows the state which the adhesion film contacted the inner surface of a front plate. FIG. 10 is an explanatory diagram showing another example of a paint application area of the front plate; It is a schematic diagram which shows the other aspect of a front plate. It is a schematic diagram which shows the other aspect of a front plate. It is a schematic diagram which shows the other aspect of a front plate.

Embodiments of the present invention will be specifically described below. The following embodiments are examples for explaining the present invention, and the present invention is not limited only to these embodiments. The same elements are denoted by the same reference numerals, and overlapping descriptions are omitted. In addition, unless otherwise specified, positional relationships such as top, bottom, left, and right in the drawings are based on the positional relationships shown in the drawings. Furthermore, the dimensional ratios of the drawings are not limited to the illustrated ratios.

FIG. 1 is a perspective view showing an example of an adhesive film storage device 1 according to this embodiment. FIG. 2 is a perspective view of the adhesive film storage device 1 in an unsealed state.

The adhesive film storage device 1 has an adhesive film storage box 10 and a roll 11 of the adhesive film F. As shown in FIG. In this specification, the term "adhesive film" refers to an adhesive film having an adhesive strength (180-degree peel strength according to JIS0237) of 0.01 N/25 mm or more and 1.5 N/25 mm or less.

The adhesive film storage box 10 has, for example, a rectangular parallelepiped shape as a whole. The adhesive film storage box 10 has a body portion 20 and a lid portion 21 as shown in FIGS. The body portion 20 has, for example, a front plate 30, a bottom plate 31, a rear plate 32, a front plate side piece 33, a side plate 34, an extension piece 35, a rear plate side piece 36, and the like. The front plate 30 includes a folded back plate 37 having the inner surface of the front plate 30 and an outer plate 38 having the outer surface of the front plate 30 . The lid portion 21 has, for example, a top plate 40, a cover piece 41, a top plate side piece 42, a cover side piece 43, an opening piece 44, and the like.

The body portion 20 is formed in a rectangular parallelepiped shape with an open upper surface as shown in FIG. The front plate 30 , the bottom plate 31 , the rear plate 32 , and the side plates 34 are each formed in a rectangular shape, and constitute five surfaces of the body portion 20 .

As shown in FIG. 4, the rear plate side pieces 36 are connected to both ends of the rear plate 32 in the left-right direction (direction A in FIG. 4). The front plate side pieces 33 are connected to both ends of the front plate 30 in the left-right direction. The folded back plate 37 is connected to one end of the outer plate 38 of the front plate 30 in the width direction (direction B in FIG. 4). As shown in FIG. 3 , the rear plate side piece 36 is folded back toward the side plate 34 to cover the outer surface of the side plate 34 and is adhered to the outer surface of the side plate 34 . The front plate side piece 33 is folded back toward the side plate 34 , interposed between the rear plate side piece 36 and the side plate 34 , and adhered to the outer surface of the side plate 34 . The folded back plate 37 is folded back to the back surface side of the front plate 30 and adhered to the back surface of the outer surface plate 38 of the front plate 30 .

The extending piece 35 is formed in a substantially rectangular plate shape as shown in FIG. 4 and is connected to the longitudinal outer ends of the side plates 34 on both sides. As shown in FIGS. 3, 5, and 6, the extension piece 35 is folded into the body portion 20 from the upper portion of the side plate 34 and extends toward the center of the body portion 20. As shown in FIGS.

As shown in FIGS. 2 and 6, the extension piece 35 extends from the upper end of each side plate 34 to the inside of the core tube 100 of the wound body 11 of the main body 20, and pushes the wound body 11 toward the center from both ends. be able to. When assembling the adhesive film storage device 1, by storing the wound body 11 from above into the body portion 20 as shown in FIG. enter.

As shown in FIG. 5, a projecting portion 60 projecting outward from the side plate 34 is formed at the center of the upper end of each side plate 34 . The projecting portion 60 is formed by forming a notch 61 in the upper portion of the side plate 34 and raising the inner region of the notch 61 as shown in FIG. A dashed cut line 62 is formed in a portion that will be the base end of the projecting portion 60 (the upper end of the side plate 34), and the projecting portion 60 is bent outward. With such a configuration, the projecting portion 60 contacts the inner surface of the lid portion 21 when the opening of the body portion 20 is closed as shown in FIG.

At the center of each side plate 34, a folded portion 70 protruding into the main body portion 20 is formed. The folded portion 70 is formed, for example, in the shape of a downwardly convex tongue (substantially semicircular), and has a folding line 71 formed at the upper end. The folded portion 70 is folded into the core tube 100 of the wound body 11 , the wound body 11 is held by the folded portion 70 , and as a result, the wound body 11 can be prevented from jumping out of the body portion 20 . An opening 72 is formed in the side plate 34 by folding the folded portion 70 , but the opening 72 is closed by the rear plate side piece 36 or the front plate side piece 33 .

As shown in FIGS. 3 to 5, the rear plate 32 and the side plates 34 are formed to have approximately the same height, and the front plate 30 is formed lower than the rear plate 32 and the side plates 34 . The front plate 30 is formed in a rectangular plate shape having a constant height along the longitudinal direction of the adhesive film storage box 10 . The front plate 30 has a height H of 50% to 90%, preferably 55% to 85%, more preferably 60% to 80% of the outer diameter R2 of the core tube 100 of the wound body 11, as shown in FIG. have. Also, the height H of the front plate 30 may be half or less of the heights of the rear plate 32 and the side plates 34 . Also, the vertical width of the opening on the front surface of the main body 20 caused by the low height of the front plate 30 may be half or more of the rear plate 32 and the side plates 34 . In the center of the front plate 30, a downwardly curved cut is formed, whereby a gripping piece 110 is formed. The grip piece 110 projects forward at its lower portion and holds the tip of the adhesive film F. As shown in FIG.

As shown in FIG. 7 , the top plate 40 of the lid portion 21 extends forward from the upper edge portion of the rear plate 32 to cover the upper surface of the main body portion 20 . The covering piece 41 extends from the front edge of the top plate 40 toward the front surface (the front plate 30). The tip of the covering piece 41 overlaps at least part of the front plate 30 . For example, on the back side of the front end of the covering piece 41, a saw-toothed cutting blade is provided as a cutting portion for cutting the adhesive film F pulled out from the wound body 11 in the main body portion 20 as shown in FIGS. 90 is provided.

As shown in FIG. 1, before the adhesive film storage device 1 is used, the adhesive film storage box 10 is sealed by the opening piece 44 connected to the tip of the cover piece 41 of the lid portion 21 . The opening piece 44 is located on the front surface of the front plate 30 of the main body 20 and formed in a belt shape along the longitudinal direction of the adhesive film storage box 10 . The opening piece 44 is connected to the tip of the cover piece 41 via a tear line 91 so as to be cut off, and is adhered to a plurality of locations on the surface of the front plate 30 . When opening the adhesive film storage box 10, the lid portion 21 can be opened by cutting the opening piece 44 along the longitudinal direction of the box as shown in FIG.

As shown in FIG. 4, at least a part of the portion of the front plate 30 that contacts the pulled-out adhesive film F has a shear peel strength (shear peel strength) of 6.0 N/25 mm or less. Shear peel force reducing portions 120 and 121 are provided. The shear peel force of the adhesive film F of the shear peel force reducing portions 120 and 121 is more preferably 3.0 N/25 mm or less, and even more preferably 1.0 N/25 mm or less.

The shear peel strength of the adhesive film F of the shear peel strength reducing portions 120 and 121 shall be measured by the following measuring method. A film test piece is prepared by cutting the adhesive film into a width of 25 mm and a length of 100 mm. A piece of paper of the front plate 30 to be measured is similarly cut into a width of 25 mm and a length of 100 mm to prepare a paper test piece. After overlapping the adhesive surface of the film test piece and the measurement surface of the paper test piece so that the contact area is 12.5 mm × 25 mm, a 2 kg roller according to JIS Z0237 reciprocates the film test piece and the paper test. Crimp the piece. Next, the film test piece and the paper test piece are shear-peeled at 300 mm/min, and the load at that time is taken as the shear peel force. This measurement is performed in an atmosphere of 23° C. and 50% RH.

The first shear peel force reducing portion 120 is provided on the inner surface of the front plate 30, that is, the inner surface 30c of the folded back plate 37, as shown in FIGS. 4 and 9, for example. The first shear peel force reducing portion 120 has, for example, a structure that reduces the contact area between the front plate 30 and the adhesive film F, and has a structure in which a plurality of protrusions 130 are provided on the inner surface 30c of the folded back plate 37. . For example, the convex portions 130 are provided in a plurality of cases, for example, in two rows across between both ends of the front plate 30 in the left-right direction. Each convex portion 130 is, for example, a square. Each projection 130 has a step of 0.05 mm or more, preferably 0.1 mm to 0.3 mm. The diameter of each protrusion 130 is 0.5 mm to 10 mm, preferably 1 mm to 8 mm, more preferably 2 mm to 6 mm. If the diameter of the protrusions 130 is 0.5 mm or more, creases are less likely to occur on the paper surface, and the steps of the protrusions 130 can be stably formed. If the diameter of the protrusion 130 is 10 mm or less, the contact area with the adhesive film F can be efficiently reduced. Also, the interval between adjacent convex portions 130 is preferably 2 mm to 6 mm, more preferably 3 mm to 5 mm. If the interval between the protrusions 130 is 2 mm or more, creases on the paper surface are less likely to occur, and if the interval is 6 mm or less, the contact area can be efficiently reduced.

As shown in FIG. 10, the second shear peel force reducing portion 121 has a structure in which the surface of the portion that contacts the adhesive film F is coated with paint P that reduces the contact area. As the paint P, for example, varnish or ink is used. More specifically, as the coating material P, repellent varnish (pseudo-embossed varnish), varnish containing fine particles, shrink printing, or the like may be used. For example, the entire inner surface 30c of the folded back plate 37, which is the inner surface of the front plate 30, the entire upper end 30b, which is the connection portion between the front plate 30 and the folded back plate 37, and the outer surface of the outer plate 38, which is the outer surface of the front plate 30. A paint P is applied to a partial region S1 of 30a. The formulation and coating conditions of the paint P are appropriately adjusted so that the arithmetic mean roughness Sa of the coated surface of the paint P is 1.0 μm or more and the value of Vmp/(Vvc+Vvv) is 0.020 or more. is preferable for reducing the contact area. Here, Vmp, Vvc, and Vvv are volume parameters. refers to the solid volume of the core, the hollow volume of the core, and the hollow volume of the valley.

The outer surface 30a of the front plate 30 is coated with paint P in a region near the upper end, for example, within a range of 5 mm downward from the upper end 30b. Paint P is applied to the outer surface 30 a above the position corresponding to the cutting blade 90 when the cover 21 closes the opening of the main body 20 .

Further, the outer surface 30a of the front plate 30 is coated with paint P on the surface of the knob piece 110 and its periphery. Around the tab piece 110, paint P is applied in a trapezoidal shape having a short upper base and a long lower base. A region S2 of the outer surface 30a of the front plate 30 other than the region S1 is coated with varnish or the like that has higher adhesiveness to the adhesive film F than the region S1.

Examples of the base paper that constitutes the adhesive film storage box 10 include, but are not limited to, cardboard, coated cardboard, corrugated cardboard, and the like, and papers known in the art can be appropriately selected and used. can be done.

As shown in FIG. 3, the wound body 11 is configured by winding an adhesive film F, such as an infection prevention film, around a cylindrical core tube 100 made of paper. In addition, infection prevention film prevents adhesion of bacteria and viruses, blood, vomit, and other body fluids to electronic medical record keyboards and various examination equipment with operation panels that are in contact with multiple medical personnel in a hospital. and to prevent cross-infection between medical personnel.

The wound body 11 has a longitudinal width of, for example, 100 mm or more, and the core tube 100 has a diameter of about 25 mm to 40 mm.

Adhesive film F includes an adhesive layer at least in part, and the adhesive strength of the adhesive layer (180-degree peel strength according to JIS0237) is 0.01 N/25 mm or more and 1.5 N/25 mm or less.

In the wound body 11, the lengths of the core tube 100 and the adhesive film F in the longitudinal direction A may be the same and the end faces of the core tube 100 and the adhesive film F may be aligned. The length A may be longer than the length of the adhesive film F in the longitudinal direction A, and the end surfaces of the core tube 100 and the adhesive film F may be offset. The former is, for example, a case in which the adhesive film F is wound around a sufficiently long core tube 100, and then the core tube 100 is cut to produce the wound body 11 of a predetermined length. This is the case where the wound body 11 is manufactured by winding the adhesive film F around the core tube 100 cut in advance.

The adhesive constituting the adhesive layer is not particularly limited, but examples thereof include acrylic adhesives, rubber adhesives, silicone adhesives, and urethane adhesives, among which acrylic adhesives and urethane adhesives. agents are preferred, and acrylic pressure-sensitive adhesives are particularly preferred.

For acrylic pressure-sensitive adhesives, a comonomer is added to the main monomer to adjust the cohesive force, or a functional group-containing monomer is added to provide cross-linking points to adjust the hardness of the pressure-sensitive adhesive and develop the desired adhesive strength. be able to. Although the main monomer is not particularly limited, for example, various alkyl (meth)acrylates such as methyl (meth)acrylate, ethyl (meth)acrylate, butyl (meth)acrylate, and 2-ethylhexyl (meth)acrylate. and these can be used singly or in combination. Examples of comonomers include, but are not limited to, vinyl acetate, acrylonitrile, acrylamide, styrene, methyl methacrylate, and methyl acrylate. Examples of functional group-containing monomers include, but are not particularly limited to, acrylic acid, hydroxyethyl acrylate, acrylamide, glycidyl methacrylate, and the like. Furthermore, tacky fire such as rosin, terpenes, aliphatic and aromatic synthetic resins can be added to adjust adhesive force. In addition, stabilizers, antioxidants, light stabilizers, UV absorbers, and the like may be added to the adhesive.

Further, the adhesive film includes a base film, and the base film has, for example, a 2% strain elastic modulus in the machine direction (MD direction) and a 2% strain elastic modulus in the width direction (TD direction) of 190 to 600 MPa. The base film may have a tensile elongation of 60 to 200% in the direction (MD direction) and the width direction (TD direction).

When using the adhesive film storage device 1 configured as described above, first, as shown in FIG. Next, the adhesive film F of the wound body 11 is pulled out to the front side of the adhesive film storage box 10 . Then, as shown in FIG. 7, the adhesive film F is cut to a predetermined length by the cutting blade 90 by, for example, pulling the adhesive film F upward with respect to the adhesive film storage box 10 with the lid portion 21 closed.

According to this embodiment, the adhesive film storage box 10 excellent in storage and use of the adhesive film F can be realized. In addition, at least part of the portion of the front plate 30 that comes into contact with the adhesive film to be pulled out is provided with shear peeling force reducing portions 120 and 121 that make the shear peeling force of the contacting adhesive film F 6.0 N / 25 mm or less. ing. Therefore, even when the adhesive film F comes into contact with the front plate 30 as shown in FIG. can be pulled out properly. In particular, the adhesive film F falls toward the inner surface 30c of the front plate 30 due to gravity and is easily adhered to the inner surface 30c of the front plate 30. However, according to the present embodiment, the adhesive film F is pulled out appropriately after that. be able to.

Since the shear peeling force reducing portions 120 and 121 are structured to reduce the contact area between the front plate 30 and the adhesive film F, the shear peeling force of the adhesive film F can be reduced with a simple structure.

Since the shear peeling force reducing portion 120 has a structure in which the convex portion 130 is provided at the portion of the front plate 30 that contacts the adhesive film F, the shear peeling force of the adhesive film F can be effectively reduced with a simpler structure. can. In addition, instead of the convex portion 130, a concave portion or an uneven portion may be provided.

Since the shear peel force reducing portion 121 has a structure in which the paint P for reducing the contact area is applied to the surface of the portion that contacts the adhesive film, the shear peel force reducing portion 121 can be easily formed over a wide range without omission.

The shear peel force reducing portions 120 and 121 are provided on at least a portion of the outer surface 30a, the inner surface 30c and the upper end 30b of the front plate 30. As shown in FIG. As a result, the shear peeling force reducing portions 120 and 121 are provided at portions of the front plate 30 that are likely to come into contact with the adhesive film F, so that the adhesive film F can be pulled out appropriately.

When the center of the adhesive film F is pinched and pulled out, the adhesive film F is particularly likely to adhere near both ends of the inner surface 30c of the front plate 30. The pressure-sensitive adhesive film F can be preferably pulled out by providing at least in the regions near both ends in the direction. The vicinity of both ends means a region within 50 mm from the end of the front plate 30 . In addition, it is more preferable that the shear peel force reducing portions 120 and 121 are provided over the entire inner surface 30c of the front plate 30 in the left-right direction as in the present embodiment.

When the adhesive film F is pulled out, the adhesive film F is particularly easily adhered near the upper end of the outer surface 30a of the front plate 30. - 特許庁Therefore, by providing the shear peel force reducing portion 121 in the region near the upper end of the outer surface 30a of the front plate 30, the adhesive film F can be pulled out favorably. The vicinity of the upper end refers to a region within 10 mm from the upper end of the front plate 30 .

The shear peel force reducing portion 121 is provided in a region on the outer surface 30 a of the front plate 30 above the position of the cutting blade 90 when the lid portion 21 closes the opening of the main body portion 20 . As a result, the portion corresponding to the cutting blade 90 on the outer surface 30a of the front plate 30 is not provided with the shear peel force reducing portion 121, and the adhesive film F is easily adhered to this portion. As a result, it is possible to prevent the adhesive film F from being rewound.

Since the shear peeling force reducing portion 121 is also provided on the tab piece 110 , the adhesive film F can be properly pulled out even when the adhesive film F comes into contact with the tab piece 110 .

When the center of the adhesive film F is pinched and pulled out, the friction of the adhesive film F increases near the center of the upper end 30b of the front plate 30.例文帳に追加In the present embodiment, since the shear peel force reducing portion 121 is provided at least in the region near the center in the left-right direction of the upper end 30b of the front plate 30, the adhesive film F can be pulled out favorably. Note that the vicinity of the center refers to a region within 10 mm from the center of the front plate 30 in the left-right direction. In addition, it is more preferable that the shear peel force reducing portion 121 is provided over the entire left-right direction of the upper end 30b of the front plate 30 as in the present embodiment.

In the above embodiment, as shown in FIG. 12, the shear peel force reducing portion 121 is positioned on the outer surface 30a of the front plate 30 at a position corresponding to the cutting blade 90 when the lid portion 21 closes the opening of the main body portion 20. , and an engaging portion 140 for engaging the adhesive film F may be provided in a region above it. The shear peel force reducing portion 121 includes, for example, the entire inner surface 30c of the folded back plate 37 that is the inner surface of the front plate 30, the entire upper end 30b that is the connection portion between the front plate 30 and the folded back plate 37, and the front plate 30. A paint P is applied to a partial region S1 of the outer surface 30a of the outer plate 38, which is the outer surface. On the outer surface 30a of the front plate 30, the paint P is applied to an area S3 having a width of 5 mm near the upper end 30b and an area 1 mm to 2 mm above and below the position corresponding to the cutting blade 90 when the lid 21 closes the opening of the main body 20. Width region S4 is coated. In addition, the locking portion 140 is formed by applying varnish or the like having higher adhesiveness to the adhesive film F than the paint P to the region S5 above the region S4 of the paint P on the outer surface 30a of the front plate 30. It is At this time, the gripping piece 110 may be coated with varnish having high adhesiveness and become the engaging portion 140 . In addition, although the varnish applied to the area S6 below the area S4 is not particularly limited, an appropriate combination of a general peeling varnish and a portion without varnish is applied. As a result, the opening piece 44 is properly adhered before opening, and the opening piece 44 can be easily peeled off from the front plate 30 at the start of use. In such a case, the edge of the adhesive film F cut by the cutting blade 90 is located in the shear peel force reducing portion 121, so tearing of the film when the edge of the adhesive film F is pinched can be suppressed. Moreover, the unwinding of the adhesive film F can also be suppressed by the locking portion 140 . Note that the region S4 may be applied not only in a thin rectangular shape but also in a dotted form. Further, the surrounding area of the tab piece 110 may be coated with paint P to form the shear peel force reducing portion 121 .

In the above embodiments, the shear peel force reducing portion may have a structure in which the surface of the portion that contacts the adhesive film F is made of a material that reduces the contact area. The material for reducing the contact area may be, for example, base paper with fine irregularities on the surface where the fibers of the paper are exposed. In this case, for example, as shown in FIG. 13, the front plate 30 does not have a folded back plate 37, and the back surface of the outer plate 38 of the front plate 30, which is not subjected to surface treatment such as coating or varnish, is used as the inner surface 30c of the front plate 30. May be exposed. Further, as shown in FIG. 14, the folded back plate 37 is folded forward, and the back surface of the folded back plate 37, which is not subjected to surface treatment such as coating or varnish, is used as the outer surface 30a of the front plate 30. The rear surface of the face plate 38 may be exposed as the inner surface 30 c of the front plate 30 . Further, as shown in FIG. 15, the folded back plate 37 is folded back to the back side of the front plate 30, and the tip side of the folded back plate 37 is extended and folded back three times, so that the back surface of the folded back plate 37 is attached to the front plate 30. It may be exposed as the inner surface 30c. However, the material for reducing the contact area is not limited to this.

Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to such examples. It is obvious that a person skilled in the art can conceive various modifications or modifications within the scope of the idea described in the claims, and these naturally belong to the technical scope of the present invention. understood as a thing.

For example, the method for setting the shear peel force to 6.0 N/25 mm or less is not limited to the above method. For example, the shear peeling force may be set to 6.0 N/25 mm or less by providing a notch projecting to the back side of the front plate 30 . Also, a plurality of methods for reducing the shear peel force may be used in combination.

The configuration of the adhesive film storage box 10 described in the above embodiment is not limited to this. For example, the present invention can also be applied to those without the extension piece 35, the grip piece 110, and the like.

(Evaluation of drawability)
The film was pinched at the center and pulled out horizontally while maintaining the same height as the upper edge of the front plate. Tables 1 and 2 show evaluation conditions and evaluation results.
(double-circle): It can draw out very appropriately.
○: It can be pulled out appropriately.
Δ: It can be pulled out somewhat appropriately.
x: It cannot be pulled out properly.

(Example 1)
JET Star (manufactured by Nippon Paper Industries) was coated with a pseudo-embossed varnish according to the coating pattern shown in FIG. 10, cut into the shape shown in FIG. rice field.

(Example 2)
Evaluation was performed in the same manner as in Example 1, except that JET Star in Example 1 was changed to Suncoat (manufactured by Oji Materia).

(Example 3)
Evaluation was performed in the same manner as in Example 1, except that the pseudo-embossing varnish in Example 1 was changed to a varnish containing resin particles.

(Example 4)
JET Star (manufactured by Nippon Paper Industries) was coated with a pseudo-embossed varnish in the coating pattern shown in Fig. 10, cut out to have the shape shown in Fig. 15, assembled into a box shape, inserted an adhesive film roll, and evaluated pullability. did

(Example 5)
JET Star (manufactured by Nippon Paper Industries) was coated with a pseudo-embossed varnish according to the coating pattern shown in FIG. A distance between convex portions of 3 mm) was provided, the shape shown in FIG.

(Example 6)
JET Star (manufactured by Nippon Paper Industries) was coated with pseudo-embossed varnish according to the coating pattern shown in FIG. 16 mm and a distance between convex portions of 3 mm), the shape shown in FIG.

(Example 7)
JET Star (manufactured by Nippon Paper Industries) is coated with FD HS peeling OP varnish SM (manufactured by Toyo Ink) in the coating pattern shown in FIG. 4 was cut into the shape shown in FIG. 4, assembled into a box shape, an adhesive film roll was inserted, and pullability was evaluated.

(Example 8)
Silicone was applied to JET Star (manufactured by Nippon Paper Industries Co., Ltd.) in the coating pattern shown in FIG. A distance between parts of 3 mm) was provided, the shape shown in FIG.

(Comparative example 1)
Evaluation was performed in the same manner as in Example 1, except that the pseudo-embossing varnish in Example 1 was changed to FD HS release OP varnish SM (manufactured by Toyo Ink).

(Comparative example 2)
Evaluation was performed in the same manner as in Example 1, except that the pseudo-embossed varnish in Example 1 was changed to FD clear coat varnish (manufactured by Toyo Ink).

(Comparative Example 3)
Evaluation was performed in the same manner as in Example 1 except that the pseudo-embossed varnish in Example 1 was changed to a vinyl chloride sheet.

(Comparative Example 4)
Evaluation was performed in the same manner as in Example 1 except that the pseudo-embossing varnish in Example 1 was changed to silicone.

INDUSTRIAL APPLICABILITY The present invention is useful in providing an adhesive film storage box and an adhesive film storage device in which an adhesive film is stored and which can be appropriately pulled out when used.

1 Adhesive Film Storage Device 10 Adhesive Film Storage Box 11 Winding Body 20 Body Part 21 Lid Part 30 Front Plate 32 Rear Plate 34 Side Plate 100 Core Tube 120, 121 Shear Peel Force Reduction Part F Adhesive Film

Claims (11)

A sticky adhesive film at least partially containing an adhesive layer and having an adhesive strength (180-degree peeling force according to JIS0237) of 0.01 N/25 mm or more and 1.5 N/25 mm or less. An adhesive film storage box for storing a wound roll,
a main body having at least a front plate, a bottom plate, a rear plate and a side plate and having an open upper surface;
a lid capable of opening and closing an opening on the upper surface of the main body,
At least a part of the inner surface of the front plate is provided with a shear peel force reducing portion where the shear peel force of the adhesive film in contact is 6.0 N / 25 mm or less,
The shear peel force reducing portion has an arithmetic mean roughness Sa of 1.0 μm or more ,
The adhesive film storage box has a structure in which the shear peel force reducing portion has a structure in which a surface of a portion that contacts the adhesive film is coated with a paint that reduces a contact area between the front plate and the adhesive film. 2. The adhesive film storage box according to claim 1, wherein said shear peel force reducing portion has a structure in which a convex portion, a concave portion, or an uneven portion is provided in a portion of said front plate that contacts the adhesive film. 2. The adhesive film storage box according to claim 1, wherein the shear peel force reducing portion has a structure in which a surface of a portion that contacts the adhesive film has a material that reduces the contact area. The pressure-sensitive adhesive film storage box according to any one of claims 1 to 3 , wherein the shear peel force reducing portion is provided on at least part of the outer surface and upper end of the front plate. 5. The adhesive film storage box according to claim 4 , wherein the shear peeling force reducing portion is provided in at least regions near both ends in the left-right direction of the inner surface of the front plate. 6. The adhesive film storage box according to claim 4 , wherein said shear peel force reducing portion is provided in a region near the upper end of the outer surface of said front plate. A cutting portion is provided at the tip of the lid portion,
7. The shear peel force reducing portion is provided in a region on the outer surface of the front plate above a position corresponding to the cut portion when the lid closes the opening of the main body. The adhesive film storage box described in . A cutting portion is provided at the tip of the lid portion,
The shear peel force reducing portion is provided on the outer surface of the front plate at a position corresponding to the cut portion when the lid closes the opening of the main body. 7. The adhesive film storage box according to claim 6 , further comprising a locking portion for locking the film. A knob piece is provided on the outer surface of the front plate,
The pressure-sensitive adhesive film storage box according to any one of claims 4 to 8 , wherein said shear peel force reducing portion is provided on said tab piece. 10. The adhesive film storage box according to any one of claims 4 to 9 , wherein said shear peel force reducing portion is provided at least in a region near the center in the left-right direction of the upper end of said front plate. An adhesive film storage device in which a wound body is stored in the adhesive film storage box according to any one of claims 1 to 10 .

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