JP6968491B1 - Adhesive roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adhesive roll which is hard to be separated or dropped even when a relatively large solid dust is held and is easy to roll. SOLUTION: This is an adhesive roll having a core roll body 11 and an adhesive sheet 12 wound around the core roll body 11, and the core roll body 11 is continuously connected to the surface of the core roll body 11 alternately in the axial direction. The adhesive sheet 12 has a convex ring portion 111 and a concave ring portion 112, each of which is formed in a direction orthogonal to the axial direction, and the adhesive sheet 12 has a convex ring portion of the core roll body 11. In order to correspond to the 111 and the concave ring portion 112, the adhesive sheet 12 is alternately continuous in the width direction, and each is formed into an uneven shape CC by the convex portion 121 and the concave portion 122 extending in the longitudinal direction of the adhesive sheet 12. The adhesive sheet 12 is wound around the core roll body 11 so that the convex portion 121 is wound around the convex ring portion 111 and the concave portion 122 is wound around the concave annular portion 112. [Selection diagram] Fig. 6

Description

The present invention relates to an adhesive roll used for cleaning a floor surface or the like.

As an adhesive roll for the purpose of removing dust, an adhesive tape wound around a core material having a substantially cylindrical shape is known. By rolling this adhesive roll on a surface to be cleaned such as a floor surface, the adhesive tape holds dust and the like existing on the surface to be cleaned on the adhesive tape. As a result, the surface to be cleaned is cleaned. In addition to the core material and the adhesive tape described above, the adhesive roll is formed of a shaft portion that passes through the central axis of the core material and a grip portion that extends continuously from the shaft portion and is gripped by the user. Specifically, one end of the shaft portion protrudes from the core material, is folded back and extends to a substantially central portion in the longitudinal direction, and is bent at a right angle from here to extend as a grip portion. Since the shaft portion is freely rotatably held with respect to the core material, the user moves the shaft portion along the surface to be cleaned via the grip portion, so that the core material and the adhesive tape can be moved to the surface to be cleaned. It rotates while being pressed by. When dust is retained on the adhesive tape to some extent, the unused adhesive tape is exposed by peeling off the outermost adhesive tape.

In such a conventional adhesive roll, a sheet-like adhesive tape is simply wound around a core material having a smooth surface, so that the large dust protrudes when the large dust is held by the adhesive tape. .. If the adhesive roll is rolled and cleaning is continued as it is, this large dust always collides with the surface to be cleaned, and even if it is held once, it may be separated from the adhesive tape again. Even if the adhesive tape is not separated from the adhesive tape, the large dust is a lump having a certain size, so that the area where the adhesive is adhered is small, and the adhesive tape may fall due to its own weight. be. Further, since the entire surface of the adhesive tape rolls while adhering to the surface to be cleaned, this may become a resistance and it may be difficult to roll.

Therefore, it is conceivable to provide an uneven shape on the surface of the adhesive tape (see, for example, Patent Document 1). Patent Document 1 attempts to make the adhesive tape easy to peel off by providing the surface of the adhesive tape with irregularities. However, the area where the large dust as described above is adhered to the adhesive tape remains small only by providing the convex portion that is partially raised as represented by the embossed shape shown in Patent Document 1. After all, when the outer adhesive tape is peeled off, it may fall. Further, in the case where the surface of the adhesive tape is provided with uneven shapes as represented by Patent Document 1, when the adhesive tapes are wound and the adhesive tapes are overlapped, these uneven shapes are intentionally prevented from overlapping. This increases the diameter when the adhesive tape is wound, which leads to an increase in storage space and an increase in transportation cost.

On the other hand, it is also known that the surface of the core material is provided with an uneven shape (see, for example, Patent Document 2). In Patent Document 2, the adhesive tape and the core material are engaged with each other to prevent the adhesive tape from falling off from the core material. However, since the surface of the adhesive tape is flat, the problem of holding the large dust described above remains.

As described above, it is known that the adhesive tape and the core material alone provide the uneven shape, but the technique for solving the uneven shape according to the above-mentioned problems is not yet known.

Japanese Unexamined Patent Publication No. 2019-171052 Jikkai Sho 64-1669 Gazette

INDUSTRIAL APPLICABILITY The present invention takes into consideration the above-mentioned prior art, and provides an adhesive roll which is hard to come off or fall even when holding a relatively large solid dust, and is easy to roll.

The adhesive roll according to the present invention comprises a cylindrical core roll body that can rotate with respect to a predetermined axis and an adhesive layer formed on a base sheet, and is wound around the core roll body with the adhesive layer facing up. An adhesive roll having a scraped adhesive sheet, wherein the core roll body is continuously arranged alternately in the axial direction on the surface of the core roll body, and each is formed in a direction orthogonal to the axial direction. The pressure-sensitive adhesive sheet has a convex ring portion and a concave ring portion, and the pressure-sensitive adhesive sheet has a width of the pressure-sensitive adhesive sheet so as to correspond to the convex ring portion and the concave ring portion of the core roll body. The adhesive sheet is formed in an uneven shape by alternating convex portions and concave portions extending in the longitudinal direction of the pressure-sensitive adhesive sheet, and the convex portion is wound around the convex annular portion and the concave annular portion is wound. The adhesive sheet is wound around the core roll body so that the concave portion is wound.

With such a configuration, the convex portion of the adhesive sheet extending in the longitudinal direction is wound around the convex ring portion of the core roll body, and the concave portion extending in the longitudinal direction of the adhesive sheet is wound around the concave annular portion of the core roll body. Since the adhesive sheet is wound around the core roll body with the adhesive layer facing up so that the adhesive sheet is wound, the tip of the convex portion of the adhesive sheet is not crushed and the tip of the convex portion of the adhesive sheet is on the surface to be cleaned. While being pressed down, the adhesive roll can roll around the axis of the core roll body. In the adhesive roll that rolls in this state, dust, dust, etc. adhere to the outermost adhesive sheet (adhesive layer). Relatively large solid dust can fit into the recesses of the pressure-sensitive adhesive sheet and adhere to the pressure-sensitive adhesive layer.

In the pressure-sensitive adhesive roll according to the present invention, the base material sheets of the pressure-sensitive adhesive sheet are arranged at predetermined intervals in the longitudinal direction of the base material sheet, and a plurality of sewing machines are formed so that each of them extends in the width direction. It can be configured to have eyes.

With such a configuration, when dust and dirt are attached to the outermost adhesive sheet (adhesive layer) portion, the outermost adhesive sheet portion is easily cut off along the perforations formed on the base sheet. be able to.

According to the present invention, the adhesive roller can roll around the axis of the core roll body while the tip of the convex portion of the adhesive sheet is pressed against the surface to be cleaned without crushing the convex portion of the adhesive sheet. Since the contact area of the sheet (adhesive layer) with the surface to be cleaned is small, the feeling of resistance is small and it can be easily rolled.

Further, according to the present invention, relatively large solid dust can be fitted into the concave portion of the adhesive sheet and adhere to the adhesive layer, so that even if such solid dust is held, this can be achieved. It can be difficult to separate or fall.

FIG. 1 is a perspective view showing an adhesive roller according to an embodiment of the present invention. FIG. 2 is a perspective view showing a core roll body used for the adhesive roll shown in FIG. 1. FIG. 3 is a cross-sectional view showing a cross section of the core roll body shown in FIG. 2 on a surface A including an axis (central axis). FIG. 4 is a perspective view showing an example of a mechanism for forming a convex ring portion and a concave ring portion alternately and continuously arranged on the surface of the core roll body. FIG. 5 is a cross-sectional view showing a cross-sectional shape of the adhesive sheet as viewed from the direction B of FIG. FIG. 6 is an enlarged cross-sectional view showing a partial structure of an adhesive roll in which an adhesive sheet is wound around a core roll body. FIG. 7 is a diagram showing an example of a usage state of the adhesive roll. FIG. 8 is an enlarged partial cross-sectional view of the adhesive roll used. FIG. 9 is a diagram schematically showing a manufacturing apparatus for manufacturing an adhesive roll according to an embodiment of the present invention. FIG. 10 is an enlarged perspective view showing an example of a mechanism provided in the manufacturing apparatus shown in FIG. 9 for forming an adhesive sheet into an uneven shape by alternately and continuously arranging convex portions and concave portions. FIG. 11 is a flowchart showing a manufacturing procedure of the adhesive roll in the manufacturing apparatus shown in FIG. FIG. 12 is a perspective view showing an example of a cut line formed on the adhesive roll. FIG. 13 is a cross-sectional view showing an adhesive roll on which the cut line shown in FIG. 12 is formed.

Embodiments of the present invention will be described with reference to the drawings.

The adhesive roll according to the embodiment of the present invention is configured as shown in FIG.

In FIG. 1, the adhesive roll 10 has a structure in which an adhesive sheet 12 is wound around a cylindrical core roll body 11 that can rotate with respect to a predetermined axis. The core roll body 11 is made of paper, for example, and is formed in a cylindrical shape having a hollow center portion (hollow portion 11a). On the surface of the core roll body 11, as shown in the enlarged view of FIG. A ring portion 112 is formed. The surface of the core roll body 11 is formed into an uneven CC (for example, a corrugated shape) in the axial direction by the convex ring portions 111 and the concave annular portions 112 that are alternately arranged in the axial direction.

The surface of the uneven CC of the core roll body 11 can be formed by, for example, the mechanism shown in FIG.

In FIG. 4, this mechanism includes a metal mold roller 20 and a shaft roll 21 made of an elastic member having appropriate elasticity such as natural rubber or synthetic rubber. The mold roller 20 and the shaft roll 21 are arranged so that their respective rotation axes are parallel to each other. The mold roller 20 is lined up alternately and continuously in the axial direction, and a concave ring portion and a convex ring portion are formed in a direction orthogonal to the axial direction, and the surface of the mold roller 20 is the surface thereof. It has a concave-convex shape CC (for example, a corrugated shape) in the axial direction. The cylindrical roll body 1 is set on the shaft roll 21 so that the shaft roll 21 is passed through the hollow portion 1a of the paper cylinder roll body 1. The mold roller 20 and the shaft roll 21 sandwich the cylindrical roll body 1 so that the mold roller 20 (made of metal) presses the cylindrical roll body 1 against the shaft roll 21 (elastic member), and in this state, the mold roller 20 and the shaft roll 21 rotates in the opposite direction.

By rotating the mold roller 20 and the shaft roll 21 in the opposite directions with the cylindrical roll body 1 sandwiched in this way, the uneven shape (for example, corrugated shape) of the surface of the mold roller 20 (made of metal) becomes an elastic member (for example, a corrugated shape). The surface of the cylindrical roll body 1 is formed so as to be transferred to the surface of the cylindrical roll body 1 supported by the shaft roll 21). As a result, on the surface of the cylindrical roll body 1, the convex ring portions are arranged alternately and continuously in the axial direction corresponding to the uneven shape CC on the surface of the mold roller 20, and each of them is orthogonal to the axial direction. The 111 and the concave ring portion are formed, and the cylindrical roll body 1 becomes a core roll body 11 (see FIGS. 2 and 3) having the above-mentioned structure.

With reference to FIG. 1, in FIG. 5, the pressure-sensitive adhesive sheet 12 has a release sheet 12a as a base material sheet and a pressure-sensitive adhesive layer 12b (for example, a synthetic rubber-based pressure-sensitive adhesive) formed on the surface thereof (for example, a synthetic rubber-based pressure-sensitive adhesive). See FIG. 5). The adhesive sheet 12 is continuous in the width direction alternately and extends in the longitudinal direction thereof so as to correspond to the convex ring portion 111 and the concave ring portion 112 of the core roll body 11 described above. It is formed in an uneven shape CC (for example, a corrugated shape: see FIG. 1) by the concave portion 122. As shown in FIG. 1, perforations 13 extending in the width direction thereof are continuously formed on the release sheet 12a of the pressure-sensitive adhesive sheet 12 at predetermined intervals in the longitudinal direction thereof.

As described above, the adhesive roll 10 has a structure in which the adhesive sheet 12 having the uneven shape CC is wound around the core roll body 11 having the surface of the uneven shape CC. Specifically, as shown in FIG. 6, together with FIG. 1, the convex portion 121 of the adhesive sheet 12 is wound around the convex annular portion 111 of the core roll body 11, and the concave annular portion 112 of the core roll body 11 is wound. The adhesive sheet 12 is wound around the core roll body 11 with the adhesive layer 12b facing up so that the concave portion 122 of the adhesive sheet 12 is wound around the core roll body 11. By such a winding method, the adhesive sheet 12 having an uneven shape can be wound around the core roll body 11 having an uneven surface without breaking the uneven shape and without gaps.

The distance H (depth: see FIG. 3) between the apex of the convex ring portion 111 of the core roll body 11 and the bottom point of the concave annular portion 112, and the apex and concave portion 122 of the convex portion 121 of the adhesive sheet 12 The distance h (depth: see FIG. 5) from the bottom point of the above is not particularly limited, but can be set to, for example, about 2 mm.

The adhesive roll 10 having the above-mentioned structure is used as follows.

As shown in FIG. 7, the adhesive roll 10 having the above-mentioned structure is attached to the handle portion 15 having a grip. The user who grips the handle portion 15 pushes the adhesive roll 10 against the surface to be cleaned 50, moves the handle portion 15 in the front-rear direction (see the dotted arrow), and rolls the adhesive roll 10 on the surface to be cleaned 50. When the adhesive roll 10 rolls on the surface to be cleaned 50, dust D and dust D existing on the surface to be cleaned 50 adhere to the outermost adhesive sheet 12 (adhesive layer 12b) of the adhesive roll 10, and the surface to be cleaned 50 is cleaned. Is removed from.

More specifically, as shown in FIG. 8, in the adhesive roll 10, the convex portion 121 of the adhesive sheet 12 is wound around the convex linear portion 111 of the core roll body 11, and the concave linear stripe of the core roll body 11 is wound. The adhesive sheet 12 is wound around the core roll 11 without a gap so that the concave portion 122 of the adhesive sheet 12 is wound around the portion 112. Therefore, the convex linear portion 111 of the core roll body 11 serves as a support, and the tip of the convex portion 121 of the adhesive sheet 12 is pressed against the surface to be cleaned 50 without crushing the convex portion 121 of the adhesive sheet 12. However, the adhesive roll 10 can roll together with the core roll body 11. In the adhesive roll that rolls in this way, dust or the like adheres to the outermost adhesive sheet 12 (adhesive layer 12b). A large amount of relatively small dust and dirt can adhere to the convex portion 121 of the adhesive sheet 12 and its vicinity, while relatively large solid dust (see D1, D2, and D3 in FIG. 8) is attached to the adhesive sheet 12. The concave portion 122 may be fitted and adhere to the portion.

According to the adhesive roll as described above, the adhesive roller 10 is a core roll body while the tip of the convex portion 121 of the adhesive sheet 12 is pressed against the surface to be cleaned 50 without crushing the convex portion 121 of the adhesive sheet 12. Since the adhesive sheet 12 (adhesive layer 12b) can roll around the axis of 11, the contact area of the adhesive sheet 12 (adhesive layer 12b) with the surface to be cleaned 50 is relatively small, and the feeling of resistance is reduced by that amount, so that the adhesive sheet 12 (adhesive layer 12b) can be easily rolled.

Further, the relatively large solid dusts D1, D2, and D3 (see FIG. 8) can be fitted into the concave portion 112 of the adhesive sheet 12 and adhere to the adhesive layer 12b, so that the adhesive roller 10 is rolled. At that time, it is difficult to separate from the 12 surfaces of the adhesive sheet (adhesive layer 12b). Further, when the adhesive roller 10 is lifted from the surface to be cleaned 50 and the outermost peripheral portion of the adhesive sheet 12 is cut off along the perforation 13, the relatively large solid dust is vibrated when the adhesive sheet 12 is cut off. It can also be prevented from falling.

Further, since the adhesive sheet 12 has an uneven shape CC (for example, a corrugated shape) and the surface area of the adhesive sheet 12 is larger than the surface area of the flat adhesive sheet, more relatively large solid dust as a whole. It will be possible to attach fine dust and dirt.

Next, an example of the method for manufacturing the adhesive roll 10 described above will be described.

The adhesive roll 10 described above can be manufactured by using, for example, the manufacturing apparatus shown in FIG. This manufacturing apparatus includes an annular belt 33 that is wound around a drive roller 31 and a driven roller 32 and is supported by a plurality of rollers arranged between the drive roller 31 and the driven roller 32. The annular belt 33 rotates so that its upper side surface moves in a predetermined direction D (direction from left to right in FIG. 9) due to the rotation of the drive roller 31. The release sheet 12a unwound from the feeding roller 30 moves with the movement of the annular belt 31 described above while being pressed against the upper side surface of the moving annular belt 31 by the pressing rollers 37, 38, etc., and the adhesive layer 12b is formed as described later. The formed adhesive sheet 12 is wound around the core roll body 11. The release sheet 12a is arranged at predetermined intervals in the longitudinal direction thereof, and a plurality of perforations 13 each extending in the width direction are formed.

On the downstream side in the vicinity of the presser roller 37, a mold roller 33 and a receiving roller 34 arranged vertically for forming the release sheet 12a into an uneven shape (for example, a corrugated shape) are provided. As for the mold roller 33 and the receiving roller 34, the mold roller 33 is made of metal and the receiving roller 33 is received, similarly to the mold roller 20 and the shaft roll 21 (see FIG. 4) used for forming the core roll body 11 described above. The roller 34 is formed of an elastic member having appropriate elasticity such as natural rubber or synthetic rubber. As shown in an enlarged view in FIG. 10 together with FIG. 9, each of the mold roller 33 and the receiving roller 34 is arranged so as to extend in the width direction (direction orthogonal to the longitudinal direction) of the release sheet 12a. Similar to the above-mentioned mold roller 20 (see FIG. 4), the mold roller 33 is arranged continuously in the axial direction and has a concave ring portion and a convex ring portion in directions orthogonal to the axial direction. And are formed, and the surface of the mold roller 34 has an uneven shape CC (for example, a corrugated shape) in the axial direction thereof. The upper mold roller 33 presses the release sheet 12a against the lower receiving roller 34, and the mold roller 33 and the receiving roller 34 sandwich the release sheet 12a. Then, in this state, the mold roller 33 and the receiving roller 34 rotate in opposite directions so as to pull in the release sheet 12a.

As described above, the release sheet 12a unwound from the feeding roller 30 passes between the rotating mold roller 33 and the receiving roller 34, whereby the uneven shape (for example, corrugated shape) of the surface of the mold roller 33 (metal) is formed. ) Continuously receives the release sheet 12a and presses it against the roller 34 (elastic member). As a result, the release sheet 12a corresponds to the uneven shape CC on the surface of the mold roller 33, and as shown in FIG. 5, the convex portions 121 and the concave portions, each of which is continuously continuous in the width direction and extends in the longitudinal direction, are formed. It is formed into an uneven shape CC by 122 (see FIG. 10).

Returning to FIG. 9, the applicator 35 is provided on the downstream side in the vicinity of the presser roller 38 arranged on the downstream side of the mold roller 33 and the receiving roller 34 arranged vertically. In the applicator 35, when the release sheet 12a (see FIG. 10) formed into the uneven CC as described above passes directly under the coater 35, the adhesive is uniformly applied to the surface of the release sheet 12a. Apply to thickness.

A dryer 36 is arranged further downstream of the applicator 35. When the release sheet 12a coated with the adhesive having a uniform thickness on the surface by the applicator 35 passes through the dryer 36, the adhesive on the surface dries. As a result, the pressure-sensitive adhesive sheet 12 having the pressure-sensitive adhesive layer 12b (adhesive) formed on the surface of the release sheet 12a is formed.

The pressure-sensitive adhesive sheet 12, which has a structure in which the pressure-sensitive adhesive layer 12b is formed on the surface of the release sheet 12a after passing through the dryer 36, moves together with the annular belt 33 and is sequentially wound around the core roll body 11. The core roll so that the convex portion 121 of the adhesive sheet 12 is wound around the convex ring portion 111 of the core roll body 11 and the concave portion 122 of the adhesive sheet 12 is wound around the concave annular portion 112 of the core roll body 11. The positions of the body 11 and the adhesive sheet 12 have been adjusted. As a result, the adhesive sheet 12 is wound around the core roll body 11 having an uneven surface without breaking the uneven shape and without any gaps.

In the manufacturing apparatus as described above, the adhesive roll 10 is eventually manufactured according to the procedure as shown in FIG.

The release sheet 12a set on the feeding roller 30 and fed from the feeding roller 30 is formed into an uneven shape CC by the mold rollers 33 and the receiving rollers 34 arranged vertically (S1). An adhesive is applied to the surface of the release sheet 12 formed into the uneven shape CC by the coater 35 (S2), and the adhesive on the surface of the release sheet 12a is dried by the dryer 36 (S3). As a result, the adhesive layer 12b is formed on the surface of the release sheet 12a. The pressure-sensitive adhesive sheet 12 having the structure in which the pressure-sensitive adhesive layer 12b is formed on the surface of the release sheet 12a is wound around the core roll body 11 (S4), and the pressure-sensitive adhesive roll 10 is completed.

According to the manufacturing apparatus as described above, the uneven shape CC is carried out by a series of steps (see FIG. 11) in which the release sheet 12a is set on the feeding roller 30 and the core roll body 11 having an uneven surface is set. It is possible to manufacture an adhesive roll 10 having a structure in which the adhesive sheet 12 of the above is wound around a core roll body 11 having an uneven shape CC surface without breaking the uneven shape and without gaps.

In the adhesive roll 10 as described above, the shape of the adhesive sheet 12 and the shape of the surface of the core roll body 11 are not limited to the uneven shape such as the corrugated shape as shown in FIG. It is not particularly limited, whether it is a semi-elliptical shape having an uneven shape, a shape having an uneven shape due to a substantially triangular shape, or a shape having an uneven shape due to another shape.

The method of forming the surface of the core roll body 11 into an uneven shape is not limited to the method shown in FIG. 4, and other methods, for example, a core roll body 11 having an uneven surface can be formed by a molding machine (for example, a press molding machine). ) May be used. Further, the material of the core roll body 11 is not limited to paper, and may be another material, for example, resin. Further, the method of forming the pressure-sensitive adhesive sheet 12 into an uneven shape is not limited to the above-mentioned method (see FIG. 9).

In the above-described embodiment, the perforations 13 are formed on the release sheet 12a, but the present invention is not limited to this. For example, as shown in FIGS. 12 and 13, the adhesive roll 10 having the structure in which the adhesive sheet 12 is wound around the core roll body 11 has a notch from the surface thereof (the outermost adhesive sheet 12a) to the core roll body 11. By forming the adhesive sheet 12 so as to extend in the axial direction sequentially by a laser cutter or the like, the cut lines 14 extending in the width direction of the adhesive sheet 12 can be continuously formed at intervals in the longitudinal direction of the adhesive sheet 12.

Further, the method for manufacturing the adhesive roll is not limited to the method using the manufacturing apparatus shown in FIG. 9, and may be a method using an apparatus having another structure.

Although the embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments described above can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the gist of the invention.

The adhesive roll according to the present invention has the effect that even if a relatively large solid dust is held, it does not easily come off or fall, and it is easy to roll, and it is useful as an adhesive roll used for cleaning a floor surface or the like. be.

10: Adhesive roll, 11: Core roll body, 11a: Hollow part, 12: Adhesive sheet, 12a: Release sheet (base sheet), 12b: Adhesive layer, 13: Perforation, 14: Cut line, 15: Handle part , 20: Mold roller, 21: Shaft roll, 30: Feed roller, 31: Drive roller, 32: Driven roller, 33: Mold roller, 34: Receiving roller, 35: Applicator, 36: Dryer, 37, 38: Presser roller, 111: convex part, 112: concave part, 121: convex ring part, 122: concave ring part

Claims (2)

Adhesive having a cylindrical core roll body that can rotate with respect to a predetermined axis, and an adhesive sheet formed by forming an adhesive layer on a base sheet and wound around the core roll body with the adhesive layer facing up. It ’s a roll,
The core roll body is
On the surface of the core member, the convex and concave annular portions are arranged alternately and continuously in the axial direction, and each of them is formed in the direction orthogonal to the axial direction.
The adhesive sheet is
Convex portions and concave portions that are alternately continuous in the width direction of the pressure-sensitive adhesive sheet and extend in the longitudinal direction of the pressure-sensitive adhesive sheet so as to correspond to the convex ring portion and the concave ring portion of the core roll body. Formed in an uneven shape due to the part,
An adhesive roll in which the adhesive sheet is wound around the core roll body so that the convex portion is wound around the convex ring portion and the concave portion is wound around the concave annular portion. The base material sheet of the pressure-sensitive adhesive sheet is arranged in the longitudinal direction of the base material sheet at predetermined intervals, and each has a plurality of perforations formed so as to extend in the width direction, according to claim 1 or 2. The adhesive roll according to 2.

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