JP2022078799A - Adhesive sheet roll - Google Patents

Abstract

To provide an adhesive sheet roll capable of stably obtaining a sticking prevention effect in backward rotation even when a cleaning object surface is the surface with a high degree of flatness.SOLUTION: An adhesive sheet roll 1 is the one where an adhesive sheet 3 is wound around a winding core 2. The adhesive sheet 3 includes: cut parts 20 formed at a fixed interval in a longitudinal direction of the adhesive sheet 3; bending parts 21 formed on a downstream side of the respective cut parts 20; and adhesiveness reduction parts 22 formed on a downstream side of the bending parts 21 so as to reduce adhesiveness onto a cleaning object surface. The cut parts 20 and the bending parts 21 are cuts 23, 24 formed in a width direction of the adhesive sheet 3. The adhesiveness reduction parts 22 are formed to be openings 25 or recessions formed in the width direction of the adhesive sheet 3. The bending parts 21 and the adhesiveness reduction parts 22 are arranged to allow the adhesiveness reduction parts to be on the downstream side of a folding part when the adhesive sheet 3 is cut at the cut parts 20 and the folding part is formed by folding the adhesive sheet 3 at the bending parts 21.SELECTED DRAWING: Figure 2

Description

The present invention relates to an adhesive sheet roll for cleaning an object surface to be cleaned while rolling the object surface such as a carpet.

A cleaning tool using an adhesive sheet roll that cleans the target surface to be cleaned while rolling the target surface such as a carpet is known. FIG. 20A is an external perspective view showing an example of a conventional cleaning tool 13. A handle 15 is attached to the shaft 14, a holder 16 is fixed to the tip end side of the shaft 14, and an adhesive sheet roll 17 is attached to the holder 16. In FIG. 20A, by advancing the adhesive sheet roll 17 (in the direction of arrow h), the surface to be cleaned is cleaned while the adhesive sheet roll 17 rotates.

During use, dust adheres to the entire circumference of the pressure-sensitive adhesive sheet roll 17, and the pressure-sensitive adhesive sheet 18 to which the dust adheres can be peeled off and cut off to resume use with the new pressure-sensitive adhesive sheet 18 exposed. However, when the adhesive sheet 18 is peeled off, there is a problem that it is difficult to find the tip portion of the adhesive sheet 18 to which dust adheres to the entire circumference.

In addition, the adhesive sheet roll 17 may be unexpectedly retracted during use. In this case, as shown in FIG. 20B, there is a problem that the adhesive sheet 18 is peeled off from the roll portion 19 while the adhesive sheet 18 is attached to the surface to be cleaned during the retreat (direction of arrow i).

In this regard, Patent Document 1 proposes an adhesive sheet roll (adhesive tape roll) provided with a folding curve substantially parallel to a perforated cut portion in order to solve the above-mentioned problems. According to this adhesive sheet roll, the end of the cut portion is bent toward the adhesive surface side along a folding curve, and the adhesive surfaces are bonded to each other, so that the back surface (non-adhesive surface) of the adhesive sheet is attached to the end of the roll surface. Is formed on the surface side. The surface of the bent portion is a non-adhesive surface, dust does not adhere to the surface, and it can be clearly distinguished from the adhesive surface darkened by use, and the peeled part of the adhesive sheet of the outermost layer can be easily identified. Further, since the surface of the bent portion is a non-adhesive surface, it is possible to prevent the adhesive sheet from being peeled off while being attached to the surface to be cleaned even if the adhesive sheet roll is rotated in the opposite direction.

Japanese Unexamined Patent Publication No. 2001-327450

However, in the adhesive sheet roll described in Patent Document 1, when the adhesive sheet roll is rotated in the opposite direction, there is still a possibility that the adhesive sheet will adhere to the surface to be cleaned on the adhesive surface following the bent portion having no adhesive force. It was left. Specifically, in the adhesive sheet roll described in Patent Document 1, when the surface to be cleaned is a rough surface such as a carpet, the effect of preventing sticking during rotation in the reverse direction can be stably obtained, but the flooring surface. The same effect was not always obtained stably for a surface to be cleaned with a high flatness such as a glass surface or a glass surface.

The present invention solves the above-mentioned conventional problems, and even if the surface to be cleaned is a surface having a high flatness, the adhesive sheet can stably obtain the effect of preventing sticking when rotating in the reverse direction. The purpose is to provide a role.

In order to achieve the above object, the adhesive sheet roll of the present invention is an adhesive sheet roll for cleaning the surface to be cleaned while the adhesive sheet is wound around a core and rolled on the surface to be cleaned. The pressure-sensitive adhesive sheet is formed on a cut portion formed at regular intervals in the longitudinal direction of the pressure-sensitive adhesive sheet, a bent portion formed on the downstream side of each cut portion, and a downstream side of the bent portion, and is cleaned. The cut portion and the bent portion are cuts formed in the width direction of the pressure-sensitive adhesive sheet, and the adhesion-reducing portion is the adhesion-reducing portion. It is an opening or a recess formed in the width direction of the sheet, and the bent portion and the adhesiveness-reduced portion are formed by cutting the adhesive sheet at the cut portion and folding the adhesive sheet at the bent portion to make a folded portion. Is characterized by being arranged so that the adhesiveness-reducing portion is located on the downstream side of the folded-back portion when the above-mentioned portion is formed.

According to the pressure-sensitive adhesive sheet roll of the present invention, when the pressure-sensitive adhesive sheet roll is used, there is a folded portion which is a non-adhesive surface at the end portion, and the downstream side thereof is a portion where the adhesiveness is lowered, so that the surface to be cleaned is flat. Even on a high-degree surface, when the adhesive sheet roll is moved backward in the direction opposite to the cleaning direction, the phenomenon that the adhesive sheet peels off while the vicinity of the edge of the adhesive sheet is stuck to the surface to be cleaned is stably prevented. can do.

In the pressure-sensitive adhesive sheet roll of the present invention, a peeling prevention portion is formed between the bent portion and the adhesion-reducing portion, and the peeling prevention portion is formed in the width direction of the pressure-sensitive adhesive sheet. The bent portion and the peeling prevention portion are recessed, and when the adhesive sheet is cut at the cut portion and the adhesive sheet is folded back at the bent portion to form a folded portion, the folded portion is formed by the folded portion. It is preferable that the peeling prevention portion is arranged so as to have the recess. According to this configuration, since the folded portion has a dent, the adhesiveness of the adhesive sheet at the folded portion is enhanced, and the peeling prevention effect of the folded portion is enhanced.

The effect of the present invention is as described above, and according to the present invention, when the pressure-sensitive adhesive sheet roll is used, there is a folded portion which is a non-adhesive surface at the end portion, and the downstream side thereof is a portion where the adhesiveness is lowered. Even if the surface to be cleaned is a surface with high flatness, when the adhesive sheet roll is moved backward in the direction opposite to the cleaning direction, the adhesive sheet is peeled off while the vicinity of the end of the adhesive sheet is stuck to the surface to be cleaned. The phenomenon can be stably prevented.

The external perspective view of the cleaning tool provided with the adhesive sheet roll which concerns on one Embodiment of this invention. The external perspective view of the adhesive sheet roll which concerns on one Embodiment of this invention. FIG. 2 is a cross-sectional view taken along the line AA of FIG. In one embodiment of the present invention, an external perspective view of an adhesive sheet roll in a state where the used adhesive sheet is cut from the roll portion. In one embodiment of the present invention, it is an external perspective view of a sheet roll showing a state in which the adhesive sheet after use is completely cut from the roll portion. The external perspective view of the adhesive sheet roll which shows the state which raised the folded piece from the state of FIG. FIG. 6 is an external perspective view of a sheet roll showing a state in which the folded piece is folded toward the adhesive sheet from the state of FIG. FIG. 7 is a cross-sectional view taken along the line BB of FIG. In one Embodiment of this invention, the figure which showed the advancing time of the pressure-sensitive adhesive sheet roll in chronological order. In one embodiment of the present invention, the figure showing the reverse movement time of the adhesive sheet roll in chronological order. The external perspective view which concerns on the 2nd Embodiment of the adhesive sheet roll. FIG. 11 is a cross-sectional view taken along the line CC of FIG. FIG. 11 is a cross-sectional view taken along the line DD of FIG. The external perspective view which concerns on the 3rd Embodiment of the adhesive sheet roll. FIG. 14 is a cross-sectional view taken along the line EE of FIG. The cross-sectional view when the folded-back part was formed from the state of FIG. The side view which shows the processing process of the opening and the cut in one Embodiment of this invention. A plan view of the cutting tool 41 shown in FIG. 17 as viewed from the blade 43 side. A plan view of the cutting tool 45 shown in FIG. 17 as viewed from the blade 47 and the blade 48 side. The external perspective view which shows an example of the conventional cleaning tool.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view of a cleaning tool 10 provided with an adhesive sheet roll 1 according to an embodiment of the present invention. The adhesive sheet roll 1 is formed by winding the adhesive sheet 3 around the core 2 to form the roll portion 4. The adhesive sheet roll 1 is attached to the holder 5. The winding core 2 is engaged with the claw 6 formed on the holder 5 to prevent the adhesive sheet roll 1 from coming off from the holder 5.

A shaft 11 is fixed to the holder 5, and a handle 12 is attached to the shaft 11. By advancing the cleaning tool 10 (in the direction of arrow a) while holding the handle 12, dust adheres to the adhesive sheet roll 1 while the adhesive sheet roll 1 rolls on the surface to be cleaned, and the surface to be cleaned is cleaned. To go.

FIG. 2 is an external perspective view of the adhesive sheet roll 1. This figure shows a state in which a part of the adhesive sheet 3 is peeled off from the roll portion 4. The cut portions 20 are formed at regular intervals P in the longitudinal direction of the pressure-sensitive adhesive sheet 3. A bent portion 21 is formed on the downstream side of the cut portion 20, and an adhesion reducing portion 22 is formed on the downstream side of the bent portion 21.

The details will be described later, but the cutting portion 20 is a portion for cutting the adhesive sheet 3 to which dust is attached from the roll portion 4. The bent portion 21 is a portion where the adhesive sheet 3 to which dust is attached is cut by the cutting portion 20 and then the cut portion 20 is raised and folded back. By this folding, the non-adhesive surface of the adhesive sheet 3 is exposed on the surface side of the roll portion 4. The adhesion reducing portion 22 is a portion that reduces the adhesion to the surface to be cleaned to prevent the adhesive sheet 3 from peeling from the roll portion 4.

In FIG. 2, the cut portion 20 is composed of a cut 23 formed intermittently in the width direction of the adhesive sheet 3. In FIG. 2, the cut 23 is inclined with respect to the width direction of the adhesive sheet 3, but may not be inclined. The bent portion 21 is formed by a cut 24 formed intermittently in the width direction of the adhesive sheet 3.

The adhesiveness reducing portion 22 is formed by an opening 25 formed intermittently in the width direction of the pressure-sensitive adhesive sheet 3. In FIG. 2, the opening 25 has an elongated hole shape, but the shape is not particularly limited and may be round or triangular. Further, the present invention is not limited to the opening, and may be a dent as described later (see FIGS. 11 to 13). Further, the openings and dents may be one or a plurality of openings and dents continuously formed in the width direction of the pressure-sensitive adhesive sheet 3.

FIG. 3 shows a cross-sectional view taken along the line AA of FIG. The notch 23a corresponding to the cut 23 of the cut portion 20, the notch 24a corresponding to the cut 24 of the bent portion 21, and the through hole 25a corresponding to the opening 25 are wound from the surface of the roll portion 4 in the radial direction of the roll portion 4. It is formed so as to penetrate to the surface of the core 2. According to this configuration, in FIG. 2, when the adhesive sheet 3 is peeled off, every time the roll portion 4 rotates constantly, the cut portion 20, the bent portion 21 and the adhesiveness-reduced portion 22 appear along with the cut portion 20. It will be.

Hereinafter, the handling of the adhesive sheet roll 1 will be described with reference to FIGS. 4 to 7. The adhesive sheet roll 1 is handled in a state where the adhesive sheet roll 1 is attached to the holder 5 of the cleaning tool 10 as shown in FIG. 1. However, in FIGS. 4 to 7, the adhesive sheet roll 1 is handled for convenience. A single unit will be illustrated and described.

FIG. 4 is an external perspective view of the pressure-sensitive adhesive sheet roll 1 in a state where the pressure-sensitive adhesive sheet 3 after use is cut from the roll portion 4. In FIG. 4, dust 15 is attached to the adhesive sheet 3 due to use. A folded-back portion 27 is formed at the end of the adhesive sheet 3. The details of the folded-back portion 27 will be described later. By cutting the adhesive sheet 3 to which the dust 15 is attached and separating it from the roll portion 4, the dust 15 can be attached to the new adhesive sheet 3. In FIG. 4, about half of the cut portion 20 is cut. Cutting is performed by tearing the adhesive sheet 3 at the formed portion of the cut 23.

FIG. 5 is an external perspective view of the adhesive sheet roll 1 showing a state in which the adhesive sheet 3 after use is completely cut from the roll portion 4. In this state, the outer surface of the roll portion 4 is an unused surface to which no dust is attached. Further, since the adhesive sheet 3 after use is completely cut, a folded piece 26 is formed between the cut 23 and the cut 24 constituting the bent portion 21.

FIG. 6 is an external perspective view of the adhesive sheet roll 1 showing a state in which the folded piece 26 is raised from the state of FIG. In FIG. 6, the folded piece 26 is raised at the position of the cut 24 constituting the bent portion 21. FIG. 7 is an external perspective view of the sheet roll 1 showing a state in which the folded piece 26 is folded toward the adhesive sheet 3 from the state of FIG. In the state of FIG. 7, the folded-back portion 27 is formed at the end portion of the adhesive sheet 3 by folding back the folded-back piece 26.

FIG. 8 shows a cross-sectional view taken along the line BB of FIG. In FIG. 8, the folded-back portion 27 is formed by adhering the adhesive surface side of the folded-back piece 26 to the adhesive sheet 3. As a result, in FIG. 8, the surface side of the folded-back portion 27 is a non-adhesive surface.

Hereinafter, the operation of the adhesive sheet roll 1 during use will be described with reference to FIGS. 9 and 10. Also in FIGS. 9 and 10, for convenience, the cleaning tool 10 is not shown, and the adhesive sheet roll 1 alone will be illustrated and described. FIG. 9 is a diagram showing the advancing time of the adhesive sheet roll 1 in chronological order. In FIG. 9A, the adhesive sheet roll 1 is in contact with the surface to be cleaned 50. From this state, the adhesive sheet roll 1 is advanced (arrow c direction) while rotating in the forward rotation direction (arrow b direction).

In the state of FIG. 9A, the folded-back portion 27 is above the surface to be cleaned 50 and is not in contact with the ground. In the state of FIG. 9 (b) advanced from the state of FIG. 9 (a), the adhesion reducing portion 22 is in contact with the surface to be cleaned 50. In the state of FIG. 9 (c) advanced from the state of FIG. 9 (b), the folded-back portion 27 is in contact with the surface to be cleaned 50. In the state of FIG. 9 (d) advanced from the state of FIG. 9 (c), the folded-back portion 27 is separated from the cleaning target surface 50.

In FIGS. 9A to 9C, the vicinity of the end portion of the adhesive sheet 3 is in contact with the surface to be cleaned 50. Since the surface of the folded-back portion 27 is a non-adhesive surface, the folded-back portion 27 does not stick to the surface to be cleaned 50 in the state of FIG. 9C. On the other hand, in the states of FIGS. 9A and 9B, the adhesive surface of the adhesive sheet 3 is in contact with the surface to be cleaned 50. However, the forward rotation direction (direction of arrow b) is the direction in which the adhesive sheet 3 on the surface of the roll portion 4 is wound around the roll portion 4. Therefore, the vicinity of the end portion of the adhesive sheet 3 remains attached to the surface to be cleaned 50, and the phenomenon that the adhesive sheet 3 is peeled off from the roll portion 4 does not occur.

When the adhesive sheet roll 1 is used, the adhesive sheet roll 1 is advanced as shown in FIG. 9, but the adhesive sheet roll 1 may be unexpectedly retracted during use. FIG. 10 is a diagram showing the reverse movement time of the adhesive sheet roll 1 in chronological order. In FIG. 10A, the adhesive sheet roll 1 is in contact with the surface to be cleaned 50. From this state, the adhesive sheet roll 1 is rotated backward (arrow e direction) while rotating in the reverse rotation direction (arrow d direction).

In the state of FIG. 10A, the folded-back portion 27 is on the upper side of the surface to be cleaned 50 and is not in contact with the ground. In the state of FIG. 10B, which is backward from the state of FIG. 10A, the folded-back portion 27 is in contact with the surface to be cleaned 50. In the state of FIG. 10 (c), which is backward from the state of FIG. 10 (b), the adhesion reducing portion 22 is in contact with the surface to be cleaned 50. In the state of FIG. 10 (d), which is backward from the state of FIG. 10 (c), the adhesion-reducing portion 22 is separated from the surface to be cleaned 50.

In FIGS. 10A to 10C, the vicinity of the end portion of the adhesive sheet 3 is in contact with the surface to be cleaned 50. The surface of the folded-back portion 27, which is the end portion of the adhesive sheet 3, is a non-adhesive surface. Therefore, in the state of FIG. 10 (b), the folded-back portion 27 is in contact with the ground, but the folded-back portion 27 does not stick to the surface to be cleaned 50, and as shown in FIG. 10 (d), the folded-back portion 27 Moves away from the surface to be cleaned 50.

If there is no folded-back portion 27 and the end portion that is the adhesive surface touches the ground, if the adhesive sheet is retracted as it is, the reverse rotation direction (direction of arrow d) is the direction in which the adhesive sheet 3 is peeled off from the roll portion 4, so that the adhesive sheet 3 is cleaned. A phenomenon may occur in which the object surface 50 is stuck and peeled off (see FIG. 20 (b)).

On the other hand, even if the folded-back portion 27 is a non-adhesive surface, since the downstream side of the folded-back portion 27 is an adhesive surface, the phenomenon that the adhesive sheet 3 as described above is stuck to the cleaning target surface 50 and peels off may occur. Specifically, when the surface to be cleaned 50 is a surface with high flatness such as a flooring surface or a glass surface, a phenomenon may occur in which the surface 50 is peeled off while being attached to the surface 50 to be cleaned on the downstream side of the folded-back portion 27.

In this respect, in the present embodiment, the downstream side of the folded-back portion 27 is the adhesiveness-reduced portion 22, and when the folded-back portion 27 touches the ground as shown in FIG. As shown in FIG. 10 (c), the adhesion reducing portion 22 touches the surface to be cleaned 50. As shown in FIG. 7, an opening 25 is intermittently formed in the adhesion reducing portion 22. For this reason, in the adhesion-reducing portion 22, the adhesion area is smaller than that of other adhesive surfaces, so that the adhesion to the surface to be cleaned 50 is reduced. Therefore, even in the adhesiveness-reducing portion 22, the effect of preventing the adhesive sheet 3 from peeling off while being attached to the surface to be cleaned 50 can be obtained.

That is, in the present embodiment, when the pressure-sensitive adhesive sheet roll 1 is used, there is a folded-back portion 27 which is a non-adhesive surface at the end portion, and the downstream side thereof is a adhesion-reducing portion 22. As a result, even if the surface to be cleaned is a surface with high flatness, when the adhesive sheet roll 1 is moved backward in the direction opposite to the cleaning direction, the vicinity of the end portion of the adhesive sheet 3 sticks to the surface to be cleaned 50. It is possible to stably prevent the phenomenon that the adhesive sheet 3 is peeled off while it is still.

Hereinafter, another specification of the adhesion reducing portion 22 will be described with reference to FIGS. 11 to 13. FIG. 11 is an external perspective view according to a second embodiment of the adhesive sheet roll 1. The pressure-sensitive adhesive sheet roll 1 shown in FIG. 2 has an adhesion-reducing portion 22 formed by an opening 25, whereas the pressure-sensitive adhesive sheet roll 1 shown in FIG. 11 has a recessed portion 28 forming an adhesion-reducing portion 22. .. Except for this point, the pressure-sensitive adhesive sheet roll 1 shown in FIG. 2 and the pressure-sensitive adhesive sheet roll 1 shown in FIG. 11 have the same configuration.

FIG. 12 is a cross-sectional view taken along the line CC of FIG. In FIG. 12, the front surface of the sheet 3 is an adhesive surface and the back surface is a non-adhesive surface. The recess 28 is formed so that the adhesive surface side is recessed. FIG. 13 is a cross-sectional view taken along the line DD of FIG. In the radial direction of the roll portion 4, the recess 28 is laminated from the surface of the roll portion 4 to the surface of the winding core 2. Since the recess 28 is formed, the adhesion area of the adhesion-reduced portion 22 is smaller than that of the other adhesive surfaces, so that the adhesion to the surface to be cleaned 50 is reduced. Therefore, even when the adhesiveness-reducing portion 22 is formed by the recess 28, the phenomenon that the adhesive sheet 3 is peeled off while the adhesive sheet 3 is attached to the cleaning target surface 50 near the end portion of the adhesive sheet roll 1 is stably peeled off when moving backward. Can be prevented.

Hereinafter, another specification of the adhesive sheet 3 will be described with reference to FIGS. 14 to 16. FIG. 14 is an external perspective view according to a third embodiment of the adhesive sheet roll 1. The pressure-sensitive adhesive sheet roll 1 shown in FIG. 14 is different from the pressure-sensitive adhesive sheet roll 1 shown in FIG. 11 in that a peeling prevention portion 30 is added as compared with the pressure-sensitive adhesive sheet roll 1 shown in FIG. The peeling prevention portion 30 is a row of recesses 31, and the cross-sectional shape of the recesses 31 is the same as that of the recesses 28 shown in FIG. The recess 31 is formed intermittently in the width direction of the adhesive sheet 3, and the peeling prevention portion 30 is formed by the adhesiveness lowering portion 22 formed by the recess 28 and the bent portion 21 formed by the cut 24. It is formed between.

FIG. 15 is a cross-sectional view taken along the line EE of FIG. In the radial direction of the roll portion 4, the recess 31 is laminated from the surface of the roll portion 4 to the surface of the winding core 2. FIG. 16 is a cross-sectional view when the folded-back portion 27 is formed from the state of FIG. In FIG. 16, since the recess 31 is formed, the adhesiveness of the folded piece 26 to the adhesive sheet 3 is enhanced, and the peeling prevention effect of the folded piece 26 is also enhanced. The recess 31 may be one or a plurality of recesses continuously formed in the width direction of the pressure-sensitive adhesive sheet 3.

Hereinafter, the processing of the openings and cuts of the adhesive sheet roll 1 will be described with reference to FIGS. 17 to 19. FIG. 17 is a side view showing a processing process of openings and cuts. In FIG. 17, the adhesive sheet roll 1 is shown in a cross-sectional state. The adhesive sheet roll 1 is supported by a core metal 40 inserted on the inner peripheral side of the winding core 2.

The blade tool 41 has a blade 43 for an opening 25 (see FIG. 2) attached to a blade base 42. FIG. 18 is a plan view of the blade tool 41 as viewed from the blade 43 side. The blades 43 are arranged to correspond to the row of openings 25 shown in FIG. The inside of the blade 43 is a space 44, and the scraps are discharged through the space 44.

In FIG. 17, the blade tool 45 is a blade 47 and a blade 48 attached to a blade base 46. The blade 47 is for the cut 24 (see FIG. 2), and the blade 47 is for the cut 23 (see FIG. 2). FIG. 19 is a plan view of the blade tool 45 as viewed from the blade 47 and the blade 48 side. The blades 47 are arranged so as to correspond to the rows of cuts 24 shown in FIG. The blades 48 are arranged so as to correspond to the row of cuts 23 shown in FIG.

In FIG. 17, the adhesive sheet roll 1 is supported by the core metal 40, and in this state, the cutting tool 41 is moved toward the adhesive sheet roll 1 (direction of arrow f), and the adhesive sheet roll 1 is pressed by the cutting tool 41. By doing so, the adhesive sheet roll 1 is punched. After the hole punching process, as shown in FIG. 3, a through hole 25a is formed so as to penetrate from the surface of the roll portion 4 to the surface of the winding core 2 in the radial direction of the roll portion 4.

Similarly, in FIG. 17, the adhesive sheet roll 1 is cut by moving the cutting tool 45 toward the adhesive sheet roll 1 (direction of arrow g) and pressing the adhesive sheet roll 1 with the cutting tool 45. After the notch processing, as shown in FIG. 3, a notch 24a and a notch 23a are formed so as to penetrate from the surface of the roll portion 4 to the surface of the winding core 2 in the radial direction of the roll portion 4.

In FIG. 17, by using a columnar die instead of the blade 43, the recess 26 shown in FIG. 11 can be formed. The adhesive sheet roll 1 is stamped by pressing the adhesive sheet roll 1 with a cutting tool to which a die is attached. After the imprinting process, as shown in FIG. 13, the recess 28 is laminated from the surface of the roll portion 4 to the surface of the winding core 2 in the radial direction of the roll portion 4.

Although the embodiment of the present invention has been described above, the embodiment is an example and may be appropriately modified. For example, in FIG. 14, the adhesion-reducing portion 22 is formed by a row of recesses 28, but may be formed by an opening 25 in the same manner as the adhesion-reducing portion 22 shown in FIG.

1 Adhesive sheet roll 2 Roll core 3 Adhesive sheet 4 Roll part 10 Cleaning tool 20 Cutting part 21 Bending part 22 Adhesive reduction part 25 Opening 23, 24 Cut 28 Depression of adhesion reduction part 30 Peeling prevention part 31 Peeling prevention part Depression

Claims (2)

An adhesive sheet roll for cleaning the surface to be cleaned while the adhesive sheet is wound around the core and rolled on the surface to be cleaned.
The adhesive sheet is
The cut portions formed at regular intervals in the longitudinal direction of the adhesive sheet,
The bent portion formed on the downstream side of each of the cut portions and the bent portion,
It is provided with an adhesion reducing portion formed on the downstream side of the bent portion and reducing the adhesion to the surface to be cleaned.
The cut portion and the bent portion are cuts formed in the width direction of the adhesive sheet.
The adhesiveness-reducing portion is an opening or a recess formed in the width direction of the adhesive sheet.
The bent portion and the adhesiveness-reduced portion are formed on the downstream side of the folded portion when the adhesive sheet is cut at the cut portion and the adhesive sheet is folded back at the bent portion to form a folded portion. An adhesive sheet roll characterized in that it is arranged so that there is a portion with reduced adhesion. A peeling prevention portion is formed between the bent portion and the adhesiveness-reducing portion, and the peeling prevention portion is a recess formed in the width direction of the adhesive sheet, and the bent portion and the said portion. The peeling prevention portion is such that when the adhesive sheet is cut at the cutting portion and the adhesive sheet is folded back at the bent portion to form a folded portion, the folded portion has the recess of the peeling prevention portion. The adhesive sheet roll according to claim 1 which is arranged.

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