WO2017010325A1

WO2017010325A1 - Cutting tool and method for manufacturing patterned adhesive body

Info

Publication number: WO2017010325A1
Application number: PCT/JP2016/069679
Authority: WO
Inventors: 聖久山根; 浩光森下; 教高大須賀
Original assignee: 日東電工株式会社
Priority date: 2015-07-10
Filing date: 2016-07-01
Publication date: 2017-01-19
Also published as: JP2017019052A

Abstract

Provided is a cutting tool that punches a patterned adhesive body, the cutting tool comprising: a substrate; and a punching blade that is provided on one surface of the substrate and that extends in a first direction orthogonal to the surface direction of the substrate. The punching blade is provided with: a first blade that punches in a pattern shape; and a second blade that is provided spaced apart from the first blade in a second direction in the surface direction, and that protrudes more toward one side in the first direction than the first blade so as to punch the outside of the pattern shape. The length of the second blade in a third direction that intersects the first direction and the second direction is longer than the length of the first blade in the third direction.

Description

Cutting tool and method for producing pattern adhesive

The present invention relates to a cutting tool and a method for manufacturing a pattern adhesive, and more particularly to a method for manufacturing a pattern adhesive suitably used for an emblem attached to an automobile exterior and the blade used in the manufacturing method.

Conventionally, a double-sided adhesive tape is generally used to attach an emblem used for an automobile exterior to an automobile body. That is, the emblem is fixed to the vehicle body by sticking one side of the double-sided pressure-sensitive adhesive tape to the emblem and the other side to the vehicle body.

This double-sided pressure-sensitive adhesive tape is usually formed in the same pattern as the emblem and is distributed as a product sandwiched between two release films, and the release film is peeled off when used.

By the way, in order to produce this patterned double-sided pressure-sensitive adhesive tape, for example, a pattern is continuously formed on a long double-sided pressure-sensitive adhesive tape that is continuously conveyed by roll-to-roll, and finally, double-sided pressure-sensitive adhesive tape. Are individually punched for each pattern (each product).

Specifically, first, a long laminated tape in which a releasable base film, a double-sided pressure-sensitive adhesive tape (adhesive layer), and a releasable cover film are sequentially laminated is prepared. Next, while the laminated tape is continuously conveyed, only the double-sided adhesive tape and the cover film are cut (half cut) so that a desired pattern (for example, an emblem pattern) is formed. Next, in order to divide each pattern (one product), the laminated tape is completely punched (full cut) with an outer frame mold surrounding one pattern. Finally, in this punched laminated tape, the residue (unnecessary portion outside the pattern in the double-sided pressure-sensitive adhesive tape or the cover film) is removed to obtain a pattern double-sided pressure-sensitive adhesive tape as a product.

However, this method has low production efficiency because the residue is manually removed. Therefore, Patent Document 1 is known as a method for reducing or omitting manual work.

In Patent Document 1, first, an adhesive film in which a release substrate film, an adhesive layer, and a release cover film are sequentially laminated is cut into an adhesive layer and a cover film so that a first slit having a desired pattern is formed. (Half cut) At the same time, the pressure-sensitive adhesive film is punched out (full cut) so as to form an outer frame-shaped second slit surrounding the desired pattern and having a discontinuous portion in the slit. Subsequently, the residue of the punched adhesive film is removed.

According to this method, in the step of removing debris, when the outer adhesive layer portion outside the outer frame is peeled from the release substrate film using the conveying device, the inner side of the outer frame and the pattern are formed via the discontinuous portion. The inner adhesive layer portion on the outer side can also be peeled from the release substrate film at the same time. That is, it is possible to omit or reduce the process of peeling off the residue manually.

JP 2014-70157 A

However, in the method described in Patent Document 1, after the adhesive film is fully cut, a step of peeling the residue portion of the release cover film is performed, and then a step of removing the residue portion of the adhesion layer is performed. . That is, this method requires a plurality of delamination processes for the residue. Therefore, there is room for improvement in the simplification of the work process.

An object of the present invention is to provide a simple method for producing a pattern adhesive and a blade used in the method for producing the pattern adhesive.

The present invention [1] is a cutting tool for punching a pattern adhesive body, comprising a substrate and a punching blade provided on one surface of the substrate and extending in a first direction perpendicular to the surface direction of the substrate, The punching blade is provided at a distance from the first blade in the second direction in the surface direction, the first blade punching into a pattern shape, and protrudes to one side in the first direction from the first blade, A second blade that punches the outside of the pattern shape, and the length of the second blade in the third direction intersecting the first direction and the second direction is greater than the length of the first blade in the third direction. It also includes a long cutting tool.

By using a cutting tool having such a configuration, a laminate including the first release film, the adhesive layer, and the second release film is punched out while being conveyed in the third direction, whereby the adhesive layer and the second release film are formed. The first slit of the pattern shape corresponding to the first blade can be formed, and the second slit corresponding to the second blade is formed on the outer side of the pattern shape, that is, at the end of the laminated body along the transport direction. Can be formed.

Therefore, in the adhesive layer, an adhesive layer pattern portion arranged inside the first slit and an adhesive layer removing portion arranged outside the first slit are obtained, and in the first release film, the second The 1st release film main-body part arrange | positioned inside a slit and the 1st release film edge part arrange | positioned outside the 2nd slit can be obtained. Therefore, with the first release film end as a starting point, together with the first release film end, the adhesive layer removing part and the second release film corresponding to the adhesive layer removing part are replaced with the first release film main body part. Can be peeled off. As a result, since the debris (the second release film corresponding to the first release film end, the adhesive layer removing part, and the adhesive layer removing part) can be peeled from the pattern adhesive body at a time, the peeling step Thus, the pattern adhesive can be easily produced.

In the present invention [2], the second blade has a plurality of second blades, and the first blade is disposed between one second blade and the other second blade. ] Is included.

According to such a configuration, since the second slits along the transport direction can be formed at both ends of the laminate, a plurality of first release film end portions can be formed. For this reason, the residue can be more reliably peeled from the first release film main body.

In the present invention [3], the cutting tool includes an elastic body provided on one surface of the substrate, and the elastic body is provided so as to cover the tips of the first blade and the second blade. The cutting tool according to [1] or [2] above is included.

According to such a configuration, the elastic body can press the surface of the laminated body when the first blade and the second blade punch the laminated body and pull out from the laminated body. Therefore, it can prevent that a laminated body adheres to a 1st blade and a 2nd blade, and a laminated body is lifted. As a result, it is possible to maintain good punching accuracy during continuous conveyance.

The present invention [4] is a laminate comprising a first release film, an adhesive layer laminated on one surface of the first release film, and a second release film laminated on one surface of the adhesive layer. A method for producing a patterned pressure-sensitive adhesive by cutting while conveying a body, wherein the pressure-sensitive adhesive layer and the second release film are cut so that a first slit having a pattern shape is formed. The slit forming step, and the second slit in which the first release film and the second release film are cut and the adhesive layer is continuous at the end in the orthogonal direction orthogonal to the transport direction of the laminate, The manufacturing method of the pattern adhesion body provided with the 2nd slit formation process formed so that the said conveyance direction may be followed is included.

According to such a configuration, in the adhesive layer, an adhesive layer pattern portion disposed inside the first slit and an adhesive layer removing portion disposed outside the first slit are obtained, and the first separation is obtained. In the mold film, it is possible to obtain a first release film main body portion disposed inside the second slit and a first release film end portion disposed outside the second slit. Therefore, with the first release film end as a starting point, together with the first release film end, the adhesive layer removing part and the second release film corresponding to the adhesive layer removing part are replaced with the first release film main body part. Can be peeled off. As a result, the residue (second release film corresponding to the first release film end portion, the adhesive layer removing portion, and the adhesive layer removing portion) can be peeled from the pattern adhesive body at a time. Therefore, the number of peeling processes can be reduced and a pattern adhesive body can be manufactured simply.

In the present invention [5], the adhesive layer pattern portion disposed inside the first slit in the adhesive layer by the first slit forming step and the second slit forming step, and the outside of the first slit In the first release film, the adhesive layer removing portion disposed in the first release film, the first release film main body portion disposed on the inner side of the second slit, and the first disposed on the outer side of the second slit. The manufacturing method of the pattern adhesive body as described in said [4] which obtains a release film edge part is included.

According to such a configuration, with the first release film end as a starting point, together with the first release film end, the adhesive layer removing unit, and the second release film corresponding to the adhesive layer removing unit, 1 It can peel from a mold release film main-body part. As a result, since the residue can be peeled from the pattern adhesive body at a time, the number of peeling processes can be reduced and the pattern adhesive body can be easily manufactured.

The present invention [6] is characterized in that, after the first slit forming step and the second slit forming step, the adhesive layer removing portion together with the first release film end portion starting from the first release film end portion. And the method for producing a pattern adhesive body according to the above [5], further comprising a step of peeling the second release film corresponding to the adhesive layer removing part from the first release film main body part. Yes.

According to such a configuration, since the residue can be peeled from the pattern adhesive body at a time, the number of peeling processes can be reduced and the pattern adhesive body can be easily manufactured.

In the present invention [7], the second slit forming step includes a full cut step of cutting the first release film, the adhesive layer and the second release film at the end of the laminate, and a full cut step. The method for producing a patterned pressure-sensitive adhesive according to any one of the above [4] to [6], further comprising a connecting step of continuing the cut adhesive layer in the orthogonal direction after the cutting step.

According to such a configuration, after forming the adhesive inner part disposed outside the first slit and inside the second slit, and the adhesive layer end disposed outside the second slit, By connecting them continuously, the adhesive layer removing portion can be formed. Therefore, it is not necessary to employ a highly accurate cutting method for cutting only the first release film and the second release film, and the adhesive layer removing portion can be formed easily and reliably.

This invention [8] includes the manufacturing method of the pattern adhesive body as described in said [7] which is a process in which the said connection process makes the said adhesion layer continuous by pressing the said adhesion layer.

According to such a configuration, the pressure-sensitive adhesive layers that are cut are brought into contact with each other by the pressing and are connected to each other by the pressure-sensitive adhesive force. can do.

[9] The present invention [9] includes the method for producing the pattern adhesive body according to [7] or [8], wherein the first slit forming step and the full cut step are simultaneously performed.

According to such a configuration, the number of work steps of the pattern adhesive body can be further reduced, and the production efficiency of the pattern adhesive body can be further improved.

According to the method for producing a pattern adhesive body of the present invention using the blade of the present invention, a pattern adhesive body is manufactured by cutting while transporting a laminate including the first release film, the adhesive layer, and the second release film. At that time, the residue (unnecessary portion) other than the pattern adhesive can be peeled from the pattern adhesive at a time. Therefore, the number of peeling processes can be reduced, and the pattern adhesive body can be easily manufactured. Therefore, the production efficiency of the pattern adhesive body can be improved.

FIG. 1: shows the perspective view of the manufacturing apparatus used for one Embodiment of the manufacturing method of the pattern adhesive body of this invention. FIG. 2 shows a side view of the manufacturing apparatus of FIG. FIGS. 3A to 3C show the laminate in a state where it is transported to the positions (A), (B), and (C) of the manufacturing apparatus of FIG. 2, and FIG. 3A is transported to the position (A). FIG. 3B is a perspective view (left view) of the first laminated body in a state where it has been formed, and an AA cross-sectional view (right view) of the perspective view, and FIG. 3B shows the second laminate in a state of being conveyed to the position (B) FIG. 3C is a perspective view (left view) of the body and an AA cross-sectional view (right view) of the perspective view. FIG. And AA cross-sectional view (right view) of the perspective view thereof. FIGS. 4D to 4F show the stacked body that has been transported to the positions (D), (E), and (F) of the manufacturing apparatus of FIG. 2, and FIG. 4D is transported to the position (D). FIG. 4E is a perspective view (left view) of the fourth laminated body in a state where it has been formed and an AA sectional view (right view) of the perspective view. FIG. FIG. 4F is a perspective view of the fifth laminated body in a state of being conveyed to the position (F) (left view). And AA cross-sectional view (right view) of the perspective view thereof. FIG. 5 shows a cutting tool used in the manufacturing method of FIG. 1, the left figure is a bottom view thereof, and the right figure is a BB cross-sectional view of the bottom view. FIG. 6 shows a bottom view of another embodiment of the blade used in the manufacturing method of FIG. FIG. 7 shows another embodiment of the pattern adhesive obtained by the production method of the present invention, the left figure shows a perspective view of the pattern adhesive, the left figure is its perspective view, and the right figure has It is AA sectional drawing of a perspective view.

1. 1. Manufacturing apparatus In FIG. 1, the direction described below is as described in the direction arrow shown in each figure.

In FIG. 2, the vertical direction of the paper is the vertical direction (thickness direction, first direction), the upper side of the paper is the upper side (one side in the thickness direction, the first direction), and the lower side of the paper is the lower side (thickness). Direction other side, first direction other side). The paper thickness direction is the width direction (second direction orthogonal to the first direction), the front side of the paper is one side in the width direction (second direction one side), and the back side of the paper is the other side in the width direction (second direction). Direction other side). The left-right direction of the paper is the transport direction (the third direction orthogonal to the first direction and the second direction), the left side of the paper is the upstream side in the transport direction (one side in the third direction), and the right side of the paper is the downstream side in the transport direction (The other side in the third direction). In the following description, the directions in FIGS. 3 to 5 also conform to the directions in FIG. *

A manufacturing apparatus 1 used in an embodiment of a method for manufacturing a pattern adhesive 30 will be described with reference to FIGS.

The manufacturing apparatus 1 for the pattern adhesive 30 includes a laminated portion 2, a punching portion 3, a connecting portion 4, a peeling portion 5, and a cutting portion 6.

The lamination unit 2 is provided on the most upstream side in the transport direction, and includes an adhesive film delivery roll 7, a cover film delivery roll 8, a first lamination roll 9, and a second lamination roll 10.

The adhesive film delivery roll 7 is a roll for delivering an adhesive film 36 (described later), and the adhesive film 36 is wound around the roll surface so that the adhesive surface (adhesive layer 60 surface) is in contact with the roll surface. ing.

The cover film delivery roll 8 is a roll for delivering a release cover film 70 as a second release film, and the release cover film 70 has a surface having the release performance such that the surface comes into contact with the roll surface. It is wound around the roll surface. The cover film delivery roll 8 is disposed above the adhesive film delivery roll 7 with a gap.

The first laminating roll 9, together with the second laminating roll 10, laminates the adhesive film 36 delivered from the adhesive film delivery roll 7 and the release cover film 70 delivered from the cover film delivery roll 8. Specifically, it is a roll for producing the first laminated body 31) described later. The 1st lamination | stacking roll 9 is located in the conveyance direction downstream and upper side of the adhesion film delivery roll 7. FIG.

The second laminated roll 10 is located on the downstream side and the lower side in the transport direction of the cover film delivery roll 8. The second laminated roll 10 is disposed on the upper side of the first laminated roll 9 so as to face the first laminated roll 9 with a slight gap. The size of the second laminated roll 10 is substantially the same as that of the first laminated roll 9.

The punching unit 3 is provided on the downstream side of the stacking unit 2 in the transport direction, and includes a punching machine 11 and a support base 12.

The punching machine 11 is disposed on the upper side of the transported laminate (first laminate 31) so as to face the laminate at an interval. The punching machine 11 includes a press plate 13 and a cutting tool 14 disposed on the lower surface of the press plate 13.

The press plate 13 is formed in a substantially rectangular shape in plan view having a predetermined thickness, and is movable in the vertical direction as indicated by the arrow in FIG.

The cutting tool 14 includes a punching substrate 15, a punching blade 16, and an elastic body 17, as shown in FIGS. 5A and 5B.

The punching substrate 15 supports and fixes the punching blade 16, and is formed in a substantially rectangular shape in bottom view having a predetermined thickness. The punching substrate 15 is made of, for example, a metal plate, a resin plate, a wooden plate, or the like.

The punching blade 16 is provided so as to extend downward from the lower surface of the punching substrate 15. As the punching blade 16, for example, a Thomson blade or the like is used, and the cutting edge (lower end) of the punching blade 16 is formed in a double-edged shape. That is, the cutting edge is formed in a substantially isosceles triangular shape having the lower side as a vertex.

The punching blade 16 includes a first blade 18 and a second blade 19.

The first blade 18 is configured to form a patterned first slit 41 (described later) in the laminate. Specifically, the vertical length (punching direction length) X <b> 1 of the first blade 18 is formed longer than the total thickness of the release cover film 70 and the adhesive layer 60.

The blade pattern of the first blade 18 (the shape of the blade tip viewed from the bottom) is formed to be a desired pattern (for example, characters, figures, symbols, etc.). The first blade 18 may be composed of a plurality of blades according to a desired pattern shape.

The vertical length X1 of the first blade 18 is, for example, 1.00 mm or more, preferably 1.50 mm or more, and, for example, 6.00 mm or less, preferably 5.60 mm or less.

The conveyance direction length X2 of the first blade 18 (that is, the maximum length in the conveyance direction) is, for example, 5 mm or more, preferably 15 mm or more, and, for example, 100 mm or less, preferably 90 mm or less.

The second blade 19 is configured to form a full cut slit 43 (described later) in the first laminate 31 that completely cuts the first laminate 31 in the thickness direction. Specifically, the vertical length Y <b> 1 of the second blade 19 is formed longer than the thickness of the first stacked body 31. The vertical length Y1 of the second blade 19 is longer than the vertical length X1 of the first blade 18. That is, the second blade 19 protrudes below the first blade 18, and the cutting edge (lower end) of the second blade 19 is positioned below the cutting edge of the first blade 18.

The blade pattern of the second blade 19 is formed so as to cut both end portions in the width direction (one end portion in the width direction and the other end portion) of the first laminated body 31 along the transport direction. Specifically, the second blade 19 includes a plurality of second blades (a second blade 19a on one side and a second blade 19b on the other side).

Each of the plurality of second blades 19 is provided on the outer side in the width direction of the first blade 18 with a distance from the first blade 18. Specifically, the second blade 19a on one side is provided on the one side in the width direction of the first blade 18 with a space from the first blade 18, and the second blade 19b on the other side is provided with the first blade 18. The first blade 18 is spaced from the other side of the first blade 18. That is, the first blade 18 is disposed between the second blade 19a and the second blade 19b in the width direction.

The blade-type patterns of the second blade 19a on one side and the second blade 19b on the other side are formed so as to have substantially the same shape, and are formed in a straight line extending along the transport direction.

Each of the transport direction lengths of the plurality of

second blades

19a and 19b is longer than the length of the first blade 18 in the transport direction. The plurality of

second blades

19a and 19b are arranged so as to include the first blade 18 when projected in the width direction. That is, the conveyance direction front ends of the

second blades

19 a and 19 b are arranged on the front side of the front and rear direction front ends of the first blades 18, and the conveyance direction rear ends of the

second blades

19 a and 19 b are the conveyance directions of the first blade 18. It is arranged on the rear side of the rear end.

The vertical length Y1 of the second blade 19 is, for example, 1.01 mm or more, preferably 1.53 mm or more, and, for example, 7.20 mm or less, preferably 6.16 mm or less.

The vertical length Y1 of the second blade 19 is, for example, 101% or more, preferably 102% or more, with respect to 100% of the vertical length X1 of the first blade 18, and for example, It is 120% or less, preferably 110% or less.

The conveyance direction length Y2 of the second blade 19 is, for example, 6 mm or more, preferably 17 mm or more, and, for example, 225 mm or less, preferably 210 mm or less, more preferably 120 mm or less.

Moreover, the conveyance direction length Y2 of the 2nd blade 19 exceeds 100% with respect to 100% of the conveyance direction length X2 of the 1st blade 18, for example, Preferably, it is 101% or more, More preferably, For example, it is 110% or less, preferably 105% or less.

In the second blade 19, the protruding length D protruding below the first blade 18 is, for example, more than 0 mm, preferably 0.01 mm or more, more preferably 0.05 mm or more, For example, it is 1.00 mm or less, Preferably, it is 0.50 mm or less.

The difference (Y2−X2) between the transport direction length of the second blade 19 and the transport direction length of the first blade 18 is, for example, more than 0 mm, preferably 0.1 mm or more, more preferably 1 mm or more, Preferably, it is 2 mm or more, and is, for example, 100 mm or less, preferably 44 mm or less, more preferably 22 mm or less.

The angle of the cutting edge of the punching blade 16 (the first blade 18 and the second blade 19) is, for example, 30 degrees or more, preferably 40 degrees or more, and, for example, 70 degrees or less, preferably 60 degrees or less. It is.

The elastic body 17 is disposed on the lower surface of the punched substrate 15.

The elastic body 17 is formed so as to have substantially the same bottom view shape as the punched substrate 15 so as to cover the entire lower surface of the punched substrate 15.

The elastic body 17 covers the cutting edges of the first blade 18 and the second blade 19 as shown in the right view of FIG. Specifically, the elastic body 17 covers each of the first blade 18 and the second blade 19 (from the upper end to the lower end). The elastic body 17 is formed in a substantially rectangular shape in plan view in the side sectional view, and the lower surface thereof is formed to be flat below the cutting edges of the first blade 18 and the second blade 19.

The material constituting the elastic body 17 is preferably a material having stretchability. For example, as the foam, for example, ethylene / propylene / diene rubber foam (EPDM foam), ethylene / propylene foam (EPM foam) And resin foams such as polyurethane foam, polystyrene foam, polyolefin foam, chloroprene foam, and silicone foam.

The vertical length L from the lower surface of the elastic body 17 to the tip of the second blade 19 is, for example, 0 mm or more, preferably 0.1 mm or more, more preferably 0.5 mm or more. 0.0 mm or less, preferably 1.5 mm or less.

The support base 12 is arranged on the lower side of the punched substrate 15 so as to sandwich the first laminated body 31 between the support substrate 12 and the punched substrate 15. The support 12 is formed in a flat plate shape having a size including the punched substrate 15 in plan view.

The connecting part 4 is provided on the downstream side of the punching part 3 in the conveying direction, and includes two compressors 21 spaced apart in the width direction. That is, the connection part 4 is provided with the 1st compressor 21a arrange | positioned at the width direction one side, and the 2nd compressor 21b arrange | positioned on the other side of the width direction at intervals from the 1st compressor 21a. .

The first compressor 21a is a pair of rolling rolls opposed to each other at an interval in the vertical direction, and includes a first upper roll 27a and a first lower roll 28a arranged to face the lower side of the first upper roll 27a. It has.

The first upper roll 27a is disposed on the upper side of the second stacked body 32 and on one side in the width direction. Specifically, the first upper roll 27 a is in contact with the upper periphery of the full cut slit 43 formed at one end in the width direction of the second stacked body 32 and is formed at the center in the width direction of the second stacked body 32. It arrange | positions so that it may not contact with the upper periphery of the 1st slit 41 which is. In other words, in the width direction, the edge on the other side in the width direction (the inner edge in the width direction) of the first upper roll 27a is located between the first blade 18 and the second blade 19, and the first upper roll The roll 27a is disposed such that an end edge on one side in the width direction (outer end edge in the width direction) is positioned on one side (outside) with respect to the second blade 19. Further, the length in the width direction of the first upper roll 27 a is formed to be shorter than the length in the width direction of the second stacked body 32.

The first lower roll 28a is disposed on the lower side of the second laminated body 32 and on one side in the width direction. Specifically, the first lower roll 28 a is disposed so as to contact the lower periphery of the full cut slit 43 formed at one end in the width direction of the second stacked body 32. The first lower roll 28a is formed in substantially the same shape as the first upper roll 27a.

The first upper roll 27a and the first lower roll 28a are arranged to face each other so that the distance therebetween is slightly narrower than the thickness of the second stacked body 32.

The second compressor 21b is a pair of rolling rolls that are opposed to each other with an interval in the vertical direction. On the other hand, it is formed in line symmetry.

Specifically, the second compressor 21b includes a second upper roll 27b and a second lower roll (not shown) disposed opposite to the lower side of the second upper roll 27b.

The second upper roll 27b is disposed on the upper side of the second stacked body 32 and on the other side in the width direction. Specifically, the second upper roll 27 b is in contact with the upper periphery of the full cut slit 43 formed at the other end in the width direction of the second stacked body 32 and is formed at the center in the width direction of the second stacked body 32. It arrange | positions so that it may not contact with the upper periphery of the 1st slit 41 made. In other words, in the width direction, an end edge (width direction inner end edge) on one side in the width direction of the second upper roll 27b is positioned between the first blade 18 and the second blade 19, and the second upper roll The end of the roll 27b on the other side in the width direction (end on the outer side in the width direction) is disposed so as to be located on the other side (outside) of the second blade 19. Further, the length in the width direction of the second upper roll 27 b is formed to be shorter than the length in the width direction of the second stacked body 32.

The second lower roll is disposed below the second laminated body 32 and on the other side in the width direction. Specifically, the second lower roll is disposed so as to come into contact with the lower periphery of the full cut slit 43 formed at the other widthwise end of the second stacked body 32.

The second upper roll 27b and the second lower roll are formed to have substantially the same shape and the same relative arrangement as the first upper roll 27a.

In this way, the connection portion 4 is configured to press the periphery of the full cut slit 43 of the second stacked body 32 but not the periphery of the first slit 41.

The peeling unit 5 is provided on the downstream side in the transport direction of the connection unit 4, and includes a tension roll 23 and a residue winding roll 24.

The tension roll 23 is disposed on the downstream side in the transport direction of the connection portion 4 so as to be in contact with the upper surface of the third stacked body 33.

The residue winding rolls 24 are arranged on the downstream side and the upper side of the tension roll 23 in the conveying direction.

The cutting unit 6 is provided on the downstream side in the transport direction of the peeling unit 5 and includes a cutting machine 26.

The cutting machine 26 is disposed on the upper side of the fourth stacked body 34 and is movable in the vertical direction as indicated by the arrows in FIG. The cutting machine 26 is formed such that the length in the width direction is longer than the length in the width direction of the fourth stacked body 34. *

2. Method for Manufacturing Pattern Adhesive Body An embodiment of a method for manufacturing the pattern adhesive body 30 will be described with reference to FIGS. 1 to 4F.

The manufacturing method of the pattern adhesive 30 includes (1) a preparation step of preparing the adhesive film 36 and the release cover film 70, and (2) stacking the release cover film 70 on the adhesive film 36 to obtain the first laminate 31. Lamination process, (3) Slit formation process for forming the first laminate 41 and the full cut slit 43 in the first laminate 31 to obtain the second laminate 32, (4) Full cut slit 43 of the second laminate 32 (5) a residue removing step for removing the residue 80 from the third laminate 33 to obtain a fourth laminate 34; 6) A cutting step of cutting the fourth laminate 34 to obtain the pattern adhesive 30 is provided.

First, the adhesive film 36 and the release cover film 70 are prepared (preparation process).

The adhesive film 36 includes a release substrate film 50 as a first release film, and an adhesive layer 60 laminated on one surface thereof.

The mold release substrate film 50 has a mold release performance on one surface (a surface in contact with the adhesive layer 60), and is formed in a long and substantially flat strip shape. As the release substrate film 50, for example, a film obtained by applying and drying a release treatment agent on the surface of the substrate film can be used.

Examples of the base film include paper such as fine paper, kraft paper, glassine paper, and plastic laminated paper, such as polyethylene (high density polyethylene, low density polyethylene, linear low density polyethylene, etc.), polypropylene, polyester (polyethylene terephthalate). Etc.), polyamide (such as nylon), α-olefin copolymer, poly-4-methyl-1-pentene, polystyrene, polyvinyl chloride, fluorine-based plastic films such as metal foil such as aluminum foil and stainless steel foil Can be mentioned.

Preferably, polyethylene, polypropylene, and polyester are used. In addition, when using polyester, Preferably, a polyethylene terephthalate is mentioned.

Moreover, the above-mentioned base film may be used alone or in combination.

The base film may be composed of one layer or may be composed of a plurality of layers.

Also, examples of the release treatment agent include a silicone release treatment agent, a fluorine release treatment agent, and a long-chain alkyl release treatment agent.

In addition, for example, when the material itself such as a plastic film has a release performance, it can be used as it is as the release substrate film 50 without applying a release treatment agent.

The thickness of the release substrate film 50 is, for example, 0.025 mm or more, preferably 0.03 mm or more, more preferably 0.05 mm or more, and, for example, 0.20 mm or less, preferably It is 0.15 mm or less, More preferably, it is 0.13 mm or less.

Preventing the first blade 18 from reaching the lower surface of the release substrate film 50 (full cut) in the slit forming step by setting the thickness of the release substrate film 50 to the above lower limit or more. Can do. Moreover, in the obtained pattern adhesion body 30, it can be easy to peel off the mold release base film 50, and it is excellent in handleability. On the other hand, when the thickness of the release substrate film 50 is set to the above upper limit or less, the cost is reduced. In addition, after the pattern adhesive 30 is used, the release substrate film 50 is discarded, so that the amount of disposal can be reduced and the environmental load can be reduced.

The adhesive layer 60 is composed of a long layer having adhesive performance on both sides thereof, and is formed in substantially the same shape as the release base film 50 in plan view.

Examples of the adhesive layer 60 include a base material-containing double-sided adhesive tape in which an adhesive layer is laminated on both sides of a base material, a base material-less double-sided adhesive tape consisting only of an adhesive layer, and preferably from the viewpoint of adhesiveness. A material-less double-sided adhesive tape can be used.

Examples of the substrate used for the substrate-containing double-sided pressure-sensitive adhesive tape include non-woven fabric, paper, plastic film, and metal foil.

The pressure-sensitive adhesive layer 60 is formed from a pressure-sensitive adhesive composition. The pressure-sensitive adhesive composition preferably includes a pressure-sensitive adhesive composition containing bubbles.

The bubble content in the pressure-sensitive adhesive composition is, for example, 10% by volume or more, preferably 11% by volume or more, more preferably 12% by volume or more, and for example, 50% by volume or less, preferably , 45% by volume or less, more preferably 40% by volume or less.

The pressure-sensitive adhesive composition preferably contains hollow fine particles.

The hollow microspheres may be hollow inorganic microspheres or hollow organic microspheres. Specifically, examples of the hollow inorganic microspheres include glass hollow balloons such as hollow glass balloons, metal compound hollow balloons such as hollow alumina balloons, and porcelains such as hollow ceramic balloons. Examples include hollow balloons. Examples of the hollow organic microsphere include resin hollow balloons such as hollow acrylic balloons and hollow vinylidene chloride balloons. Preferably, a hollow glass balloon is used. By containing a hollow microsphere, the adhesiveness is improved, and the cutting characteristics when cutting the adhesive layer 60 are improved.

The particle diameter (average particle diameter) of the hollow microspheres is, for example, 1 μm or more, preferably 5 μm or more, more preferably 10 μm or more, and for example, 500 μm or less, preferably 200 μm or less, more preferably. Is 100 μm or less.

For such a pressure-sensitive adhesive composition and the pressure-sensitive adhesive layer 60 formed therefrom, for example, the compositions and production methods described in JP-A Nos. 2005-179561 and 2006-22189 are used. Can do.

The thickness of the adhesive layer 60 is, for example, 0.2 mm or more, preferably 0.4 mm or more, and, for example, 4 mm or less, preferably 2 mm or less.

The pressure-sensitive adhesive film 36 is obtained, for example, by sticking a pressure-sensitive adhesive layer 60 (pressure-sensitive adhesive tape) to the release base film 50 or by applying and drying a pressure-sensitive adhesive composition on the release base film 50. be able to.

The adhesive layer 60 is formed to have substantially the same shape as the release substrate film 50 when projected in the thickness direction.

The mold release cover film 70 has a mold release performance on one surface (a surface in contact with the adhesive layer 60), and is formed in a long and substantially flat strip shape. As the release cover film 70, for example, the same material as that of the release base film 50 can be used.

The release cover film 70 is formed to have substantially the same shape in plan view having substantially the same width as the release base film 50.

Then, the prepared pressure-sensitive adhesive film 36 is so arranged that the pressure-sensitive adhesive layer 60 is in contact with the roll surface and the surface of the release base film 50 is exposed to the outside of the roll. The adhesive film delivery roll 7 is wound around the adhesive film delivery roll 7 so as to be disposed inside the adhesive film delivery roll 7 in the radial direction. On the other hand, the release cover film 70 is arranged such that the surface having the release performance comes into contact with the roll surface (the surface having the release performance is arranged on the inner side in the radial direction of the cover film delivery roll 8 with respect to the back surface. ) Wound around the cover film delivery roll 8.

Next, a release cover film 70 is laminated on the adhesive film 36 (lamination process).

Specifically, the release cover film 70 is brought into contact with one surface (adhesive layer surface side) of the adhesive film 36 and bonded.

First, the adhesive film 36 wound around the adhesive film delivery roll 7 is sent out upstream in the transport direction. Subsequently, the pressure-sensitive adhesive film 36 is placed on the first laminated roll 9 so that the pressure-sensitive adhesive layer 60 is on the upper side with respect to the release base film 50 and the release base film 50 is in contact with the upper surface of the first laminated roll 9. And the second laminated roll 10 are passed. At this time, the adhesive film 36 is transported upward from the adhesive film delivery roll 7 and is transported horizontally after passing the upper side of the first laminating roll 9.

On the other hand, the release cover film 70 wound around the cover film sending roll 8 is sent toward the upstream side in the conveying direction. Subsequently, the surface having a release performance (release surface) is on the lower side with respect to the back surface, and the surface opposite to the release surface (back surface) is in contact with the lower surface of the second laminated roll 10. The release cover film 70 is passed between the first laminated roll 9 and the second laminated roll 10. At this time, the release cover film 70 is transported downward from the cover film delivery roll 8 and is transported horizontally after passing the lower side of the second laminated roll 10.

In this way, when the adhesive film 36 and the release cover film 70 pass through a slight gap between the first laminated roll 9 and the second laminated roll 10, the release cover film 70 becomes the upper side surface of the adhesive film 36. (That is, it contacts and sticks to the adhesion layer 60).

Thereby, as shown to FIG. 3A, the 1st laminated body 31 is obtained.

The first laminated body 31 includes a release base film 50, an adhesive layer 60 laminated on the release base film 50, and a release cover film 70 laminated on the adhesive layer 60. The first laminate 31 is formed so that the release base film 50, the adhesive layer 60, and the release cover film 70 are flush with each other at the end face in the width direction.

Next, the first slit 41 and the full cut slit 43 are formed in the first laminate 31 (slit forming step).

That is, in this slit forming step, the first slit forming step for cutting the adhesive layer 60 and the release cover film 70 so that the first slit 41 is formed in the first laminate 31, and the first laminate. A full cut process for cutting the release substrate film 50, the adhesive layer 60, and the release cover film 70 is simultaneously performed on the body 31 so that the full cut slit 43 is formed.

Specifically, as indicated by the arrows in FIGS. 1 and 2, the punching machine 11 is moved downward, and the punching blades 16 (first blade 18 and second blade 19) are pushed against the first laminate 31. The first laminated body 31 is punched by punching (punching operation). At this time, the second blade 19 completely penetrates the first laminate 31 in the thickness direction, while the first blade 18 having a blade shorter than the second blade 19 penetrates only the release cover film 70 and the adhesive layer 60. And does not penetrate the release substrate film 50. Thereby, one short linear full cut slit 43 corresponding to the shape of the second blade 19 is formed together with the first slit 41 of one pattern shape corresponding to the shape of the first blade 18 by one punching operation. It is formed.

In the slit forming step, a punching operation is continuously performed on the conveyed first laminated body 31. At this time, the conveyance direction upstream end of one full cut slit 43 formed by the previous punching operation overlaps with the conveyance direction downstream end of one full cut slit 43 formed by the next punching operation, The punching operation is continuously performed. As a result, the long cut slits 43 formed by the punching operations are continuous with each other in the transport direction, so that one long linear full cut slit 43 is formed.

Thereby, as shown in FIG. 3B, the second laminated body 32 in which the first slit 41 and the full cut slit 43 are formed is obtained.

As shown in the left diagram of FIG. 3B, the first slit 41 is formed in a predetermined pattern shape (characters XYZ in FIG. 3B) in the center in the width direction of the second stacked body 32 in plan view. . In addition, as shown in the right view of FIG. 3B (cross-sectional view in the conveyance direction), the first slit 41 extends from the upper surface of the release cover film 70 to the middle of the release base film 50 in the vertical direction. Is formed. That is, the release cover film 70 and the adhesive layer 60 penetrate in the vertical direction, but the release substrate film 50 does not penetrate in the vertical direction.

As shown in the left diagram of FIG. 3B, the full cut slit 43 is formed in a straight line along the transport direction at each of both ends in the width direction of the second stacked body 32 in a plan view. The full cut slit 43 is formed from the upper surface of the release cover film 70 to the lower surface of the release substrate film 50 as shown in the partially enlarged view of the right figure of FIG. The cut slit 43 passes through the second stacked body 32.

In the mold release base film 50, the base film main body 51 as the first mold release film main body which is the inner part of the full cut slit 43 and the outer part of the full cut slit 43 are formed by the full cut slit 43. 1 is separated into a base film end 52 as a release film end. In addition, the base film edge part 52 is a part removed from a laminated body as a part of dregs (unnecessary part).

In the adhesive layer 60, the first slit 41 and the full cut slit 43 allow the adhesive layer pattern portion 61 that is the inner portion of the first slit 41 and the outer portion of the first slit 41 and the inner portion of the full cut slit 43. It is separated into an adhesive layer inner part 62 and an adhesive layer end 63 which is an outer part of the full cut slit 43. In addition, the adhesion layer inner side part 62 and the adhesion layer edge part 63 are a part of residue, and are parts removed from a laminated body.

In the release cover film 70, the first slit 41 and the full cut slit 43 provide a cover film pattern portion 71 that is an inner portion of the first slit 41 and an inner portion of the full slit 43 that is an outer portion of the first slit 41. It is cut into a cover film inner part 72 that is a part and a cover film end part 73 that is an outer part of the full cut slit 43. In addition, the cover film inner side part 72 and the cover film edge part 73 are a part of residue, and are parts removed from a laminated body.

That is, the second laminate 32 includes a release base film 50 having a base film main body 51 and a base film end 52, an adhesive layer pattern part 61, an adhesive layer inner part 62, and an adhesive layer end 63. And a release cover film 70 having a cover film pattern portion 71, a cover film inner portion 72, and a cover film end portion 73.

Next, the adhesive layer 60 cut at the full cut slit 43 of the second laminate 32 is connected (connection process).

Specifically, the adhesive layer 60 is pressed by the two compressors 21 (21a, 21b). That is, one end in the width direction of the second laminate 32 is passed between the first upper roll 27a and the first lower roll 28a, and the other end in the width direction of the second laminate 32 is passed through the second upper roll 27b. And the second lower roll.

During this passage, both end portions in the width direction of the second laminated body 32 are compressed from above and below, so that the adhesive layer inner portion 62 and the adhesive layer end portion 63 are pushed out toward the full cut slit 43. Thereafter, the extruded adhesive layer inner portion 62 and the adhesive layer end portion 63 come into contact with each other and are connected (coupled) in the width direction due to mutual adhesive force. As a result, an adhesive layer removing portion 64 in which the adhesive layer inner portion 62 and the adhesive layer end portion 63 are continuous is formed outside the first slit 41 in the width direction. Thereby, the second slit 42 is formed from the full cut slit 43 in the release base film 50 and the release cover film 70.

As shown in the left diagram of FIG. 3C, the second slits 42 are formed in a straight line along the transport direction at each of both ends in the width direction of the second stacked body 32 in a plan view. Moreover, as shown in the partially enlarged view of the right figure of FIG. 3C, the second slit 42 has the release cover film 70 and the release base film 50 penetrating in the vertical direction, but the adhesive layer 60 is It does not penetrate in the direction.

In this connection step, the two compressors 21 (21a, 21b) press only the both ends in the width direction of the second laminate 32, and do not press the center in the width direction. For this reason, the adhesive layer pattern part 61 and the adhesive layer removal part 64 cut | disconnected by the 1st slit maintain the state cut | disconnected in the width direction, without connecting.

Thereby, as shown in FIG. 3C, the third stacked body 33 in which the first slit 41 and the second slit 42 are formed is obtained.

The third laminate 33 includes a release base film 50 having a base film body 51 and a base film end 52, an adhesive layer 60 having an adhesive layer pattern part 61 and an adhesive layer removal part 64, and a cover film. A release cover film 70 having a pattern portion 71, a cover film inner portion 72 and a cover film end portion 73 is provided.

Next, the residue 80 is removed from the third stacked body 33 (residue removal step).

Specifically, as shown in FIG. 4D, the residue 80 (base film end 52, adhesive layer removing part 64, cover film inner part 72, and cover film end 73) is peeled from the third laminate 33. . That is, with the base film end 52a on one side in the width direction as a starting point, together with the base film end 52a on the one side in the width direction, the release layer film portion corresponding to the adhesive layer removing unit 64 and the adhesive layer removing unit 64 ( The cover film inner part 72 and the cover film end part 73) and the base film end part 52 b on the other side in the width direction are peeled off from the base film main part 51.

In this waste removal step, first, the third laminated body 33 is brought into contact with the lower surface of the tension roll 23, the downstream end in the transport direction of the waste 80 is fixed to the waste take-up roll 24, and the waste 80 is wound up. The waste winding roll 24 is rotated. *

Under the present circumstances, the base film end part 52a of the width direction one side is the base film of the width direction other side by arrange | positioning the residue winding roll 24 with respect to the 3rd laminated body 33 adjusting an angle and a position. The residue 80 is wound up so as to be pulled upward before the end 52b. Then, as shown by the phantom line in FIG. 4D, the adhesive layer removing portion 64 laminated on the base film end portion 52a on one side in the width direction, the cover film inner portion laminated on the adhesive layer removing portion 64 72, the cover film end portion 73, and the base film end portion 52b on the other side in the width direction laminated under the adhesive layer removing portion 64 are sequentially peeled from one side in the width direction to the other side in the width direction. Specifically, as shown in FIG. 1, separation is sequentially performed in an oblique direction from one side in the width direction and the upstream side in the transport direction to the other side in the width direction and the downstream side in the transport direction.

Thereby, as shown to FIG. 4E, the 4th laminated body 34 is obtained.

The fourth laminate 34 includes a base film main body 51, a plurality of adhesive layer pattern portions 61 stacked on the base film main body 51, and a plurality of layers stacked on the plurality of adhesive layer pattern portions 61. Cover film pattern portion 71.

Next, the fourth laminate 34 is cut (cutting step).

Specifically, as indicated by the arrows in FIGS. 1 and 2, the fourth laminate 34 is cut for each adhesive layer pattern portion 61 by moving the cutting machine 26 downward.

Thereby, as shown to FIG. 4F, the pattern adhesion body 30 is obtained.

The pattern adhesive 30 includes a base film main body 51, one adhesive layer pattern 61 laminated on the base film main body 51, and one cover film laminated on the adhesive layer pattern 61. And a pattern portion 71.

The pattern adhesive body 30 obtained in this way is used for emblems for vehicles such as automobiles and motorcycles, for example, emblems for home appliances, electrical / electronic devices, machine tools, and the like, for example, buildings such as houses and offices. For example, a decorative article etc. can be used as a double-sided adhesive tape for sticking to a sticking object.

According to the method for manufacturing the pattern adhesive body 30, the pattern laminate 30 is cut while transporting the first laminate 31 including the release substrate film 50, the adhesive layer 60, and the release cover film 70. In the width direction of the first laminate 31 and the first slit forming step of cutting the adhesive layer 60 and the release cover film 70 so that the pattern-shaped first slit 41 is formed. At the end, a second slit forming step is formed in which the release base film 50 and the release cover film 70 are cut and the second slit 42 in which the adhesive layer 60 is continuous is formed along the transport direction.

For this reason, in the adhesive layer 60, the adhesive layer pattern part 61 arrange | positioned inside the 1st slit 41 and the adhesive layer removal part 64 arrange | positioned outside the 1st slit 41 are obtained. In the material film 50, it is possible to obtain a base film main body 51 disposed inside the second slit 42 and a base film end 52 (52a, 52b) disposed outside the second slit 42. it can. Therefore, starting from the base film end 52a on one side in the width direction, together with the base film end 52a, the adhesive layer removing part 64, the cover film inner part 72 and the cover film end 73 laminated thereon Can be peeled from the base film body 51. As a result, the residue 80 (base film end 52, adhesive layer removing part 64, cover film inner part 72, and cover film end 73) can be peeled from the pattern adhesive 30 at a time. Therefore, the number of peeling processes can be reduced and the pattern adhesive body 30 can be manufactured simply.

Moreover, according to the manufacturing method of the pattern adhesion body 30, the 2nd slit formation process is the full which cut | disconnects the mold release base film 50, the adhesion layer 60, and the mold release cover film 70 in the edge part of the 1st laminated body 31. After the cutting step and the full-cutting step, a connection step is provided in which the cut adhesive layer 60 is continued in the width direction.

For this reason, after forming the adhesive layer inner side portion 62 arranged outside the first slit 41 and inside the second slit 42, and the adhesive layer end portion 63 arranged outside the second slit 42, By connecting them so as to be continuous, the adhesive layer removing portion 64 can be formed. Therefore, it is not necessary to employ a highly accurate cutting method for cutting only the release substrate film 50 and the release cover film 70, and the adhesive layer removing portion 64 can be formed easily and reliably.

Moreover, according to the manufacturing method of the pattern adhesion body 30, the adhesion layer 60 is made continuous by pressing the adhesion layer 60 at a connection process.

For this reason, the pressure-sensitive adhesive layer 60 cut by pressing, that is, the pressure-sensitive adhesive layer inner portion 62 and the pressure-sensitive adhesive layer end portion 63 come into contact with each other and are connected to each other by the pressure-sensitive adhesive force. can do.

Moreover, according to the manufacturing method of the pattern adhesion body 30, a 1st slit formation process and a full cut process are implemented simultaneously.

For this reason, the number of work steps of the pattern adhesive can be further reduced, and the production efficiency of the pattern adhesive can be further improved.

The cutting tool 14 includes a punching substrate 15 and a punching blade 16 provided on the lower surface of the punching substrate 15 and extending downward. The punching blade 16 includes a first blade 18 that punches into a pattern shape, and a second blade 19 that is provided at a distance from the first blade 18 in the width direction and protrudes below the first blade 18. Prepare. Further, the length of the second blade 19 in the transport direction is longer than the length of the first blade 18 in the transport direction.

For this reason, the adhesive layer 60 and the release cover film 70 are punched out while transporting the first laminate 31 including the release base film 50, the adhesive layer 60 and the release cover film 70 using the cutting tool 14. In addition, a first slit 41 having a pattern shape corresponding to the first blade 18 can be formed, and the second slit 42 corresponding to the second blade 19 is formed at the end of the first stacked body 31 along the transport direction. Can be formed.

Therefore, the manufacturing method of the pattern adhesive body 30 can be surely performed. Therefore, the number of peeling processes can be reduced and the pattern adhesive body 30 can be manufactured simply.

In the cutting tool 14, the second blade 19 has a plurality of second blades 19 (19a, 19b), and the first blade 18 is interposed between one second blade 19a and the other second blade 19b. Has been placed.

For this reason, since the 2nd slit 42 which follows a conveyance direction can be formed in the both ends of the 1st laminated body 31, the base film film edge part 52 (52a, 52b) can be formed in multiple numbers. Therefore, the residue 80 can be more reliably peeled from the base film main body 51.

Further, the blade 14 includes an elastic body 17 provided on the lower surface of the punched substrate 15, and the elastic body 17 is provided so as to cover the tips of the first blade 18 and the second blade 19.

For this reason, when the 1st blade 18 and the 2nd blade 19 punch the 1st laminated body 31, and pull out from the 1st laminated body 31, the elastic body 17 presses the mold release cover film 70 surface of the 1st laminated body 31. be able to. Therefore, it can prevent that the 1st laminated body 31 adheres to the 1st blade 18 and the 2nd blade 19, and the 1st laminated body 31 is lifted. As a result, it is possible to maintain good punching accuracy during continuous conveyance.

3. Modifications In FIGS. 6 to 7, the same members as those in the embodiment of FIGS. 1 to 5 are designated by the same reference numerals, and the details thereof are omitted.

In the embodiment of FIG. 5, the second blade 19 is arranged at the conveyance direction position including all the first blades 18 when projected in the width direction. For example, as shown in FIG. 6, the second blade 19 19 can also be arranged at a conveyance direction position not including a part of the first blade 18 when projected in the width direction.

That is, the front end of the second blade 19 in the transport direction is disposed ahead of the front end of the first blade 18 in the front-rear direction, and the rear end of the second blade 19 in the transport direction is disposed in the center of the first blade 18 in the transport direction. Has been.

From the viewpoint of reducing the length of the cutting tool 14 in the conveying direction and reducing the size of the cutting tool 14, the embodiment shown in FIG. 5 is preferable.

In the embodiment of FIG. 5, the blade 14 includes the elastic body 17, but the blade 14 may not include the elastic body 17, for example, although not illustrated.

Preferably, from the above viewpoint, the embodiment of FIG.

In the embodiment of FIG. 4F, the pattern adhesive body 30 includes a cover film pattern portion 71 that is patterned on the adhesive layer pattern portion 61. For example, as shown in FIG. A release cover film 70 having a substantially rectangular shape in plan view can be provided on the pattern portion 61.

In the embodiment of FIG. 7, the release cover film 70 having a substantially rectangular shape in plan view has a width direction length (long side) and a conveyance direction length (short side) of the base film body 51. The base film body 51 and the adhesive layer pattern 61 are formed so as to be longer when projected in the vertical direction.

By providing the release cover film 70 having a substantially rectangular shape in plan view, the release cover film 70 is more easily peeled off during use, and the usability of the pattern adhesive 30 is improved.

In the embodiment of FIG. 7, the cover film pattern portion 71 is peeled off from the pattern adhesive body 30 of FIG. 4F to expose the upper surface of the adhesive layer pattern portion 61. It is obtained by laminating the film 70 on the upper surface of the adhesive layer pattern portion 61.

Moreover, in order to match | combine the bonding position of the pattern adhesive body 30 and a sticking object correctly when sticking the pattern adhesive body 30 to a sticking object, it is a positioning hole (not shown) in the base film main-body part 51. ) Or the like can also be formed at the center or peripheral edge thereof.

3B to 3C, a full cut process and a connection process are performed as the second slit forming process. For example, although not shown, the adhesive layer 60 is cut as the second slit forming process. Instead, the second slit may be formed directly by cutting only the release substrate film 50 and the release cover film 70.

As a method of directly forming the second slit 42, specifically, for example, a laser is irradiated from above and below the first laminate 31, respectively, so that the release substrate film 50 and the release cover film 70 are irradiated. Can only be cut.

Preferably, from the above viewpoint, as shown in FIGS. 3B to 3C, a full cut process and a connection process are performed.

In the step of FIG. 3B, the first slit 41 and the full cut slit 43 are simultaneously formed in the first stacked body 31. For example, although not shown, they are formed separately instead of being formed simultaneously. Also good. That is, after the first slit 41 is formed in the first stacked body 31, the full cut slit 43 may be formed in the first stacked body 31, or after the full cut slit 43 is formed in the first stacked body 31. The first slit 41 may be formed in the first stacked body 31.

When forming the slits separately, as the cutting tool 14, a first cutting tool including the first blade 18 and the punching substrate 15 and a second cutting tool including the second blade 19 and the punching substrate 15 are prepared. The first cutting tool and the second cutting tool are independently punched into the first laminate 31 by moving downward.

Preferably, from the above viewpoint, as shown in FIG. 3B, the first slit forming step and the full cut step are performed simultaneously.

In the step of FIG. 3B, the first slit 41 and the full cut slit 43 are formed by punching with the cutting tool 14, but for example, although not shown, it can also be formed with a laser or the like.

In the step of FIG. 3C, the second slits 42 are formed at both ends in the width direction. For example, although not shown, the second slits can be formed only at one end in the width direction.

Preferably, from the above viewpoint, the embodiment of FIG. 3C can be cited.

Although the above invention has been provided as an exemplary embodiment of the present invention, this is merely an example and should not be interpreted in a limited manner. Variations of the present invention that are apparent to one of ordinary skill in the art are within the scope of the following claims.

The cutting tool of the present invention can be applied to various industrial products, and can be used, for example, in a method for producing a pattern adhesive. Moreover, the pattern adhesive body obtained by the manufacturing method of the pattern adhesive body of this invention can be applied to various industrial products, for example, can be used as a double-sided adhesive tape.

14 Cutting tool 15 Punching substrate 16 Punching blade 17 Elastic body 18 First blade 19 Second blade 30 Pattern adhesive body 31 First laminated body 41 First slit 42 Second slit 43 Full cut slit 50 Release base film 52 Base Material film edge part 60 Adhesive layer 64 Adhesive layer removal part 70 Release cover film 72 Cover film inner side part 73 Cover film edge part

Claims

A cutting tool for punching pattern adhesive,
A substrate,
A punching blade provided on one surface of the substrate and extending in a first direction orthogonal to the surface direction of the substrate;
The punching blade is
A first blade punched into a pattern shape;
A second blade that is provided at a distance from the first blade in the second direction in the surface direction, protrudes to one side in the first direction from the first blade, and punches the outside of the pattern shape;
The cutting tool, wherein a length of the second blade in the first direction and a third direction crossing the second direction is longer than a length of the first blade in the third direction.
The second blade has a plurality of second blades,
The cutting tool according to claim 1, wherein the first blade is disposed between one second blade and the other second blade.
The blade includes an elastic body provided on one surface of the substrate,
The blade according to claim 1 or 2, wherein the elastic body is provided so as to cover the tips of the first blade and the second blade.
Cutting while transporting a laminate comprising a first release film, an adhesive layer laminated on one surface of the first release film, and a second release film laminated on one surface of the adhesive layer. A method for producing a pattern adhesive,
A first slit forming step of cutting the adhesive layer and the second release film so that a first slit in a pattern shape is formed; and
The first release film and the second release film are cut at the end in the orthogonal direction perpendicular to the transport direction of the laminate, and the second slit in which the adhesive layer is continuous extends along the transport direction. The manufacturing method of the pattern adhesive body characterized by including the 2nd slit formation process formed in this.
By the first slit forming step and the second slit forming step,
In the adhesive layer, an adhesive layer pattern portion disposed inside the first slit, and an adhesive layer removing portion disposed outside the first slit,
In the first release film, obtaining a first release film main body disposed inside the second slit and a first release film end disposed outside the second slit. The manufacturing method of the pattern adhesive body of Claim 4 characterized by the above-mentioned.
After the first slit forming step and the second slit forming step, the adhesive layer removing portion and the adhesive layer removing together with the first release film end portion starting from the first release film end portion The method for producing a pattern adhesive body according to claim 5, further comprising a step of peeling the second release film corresponding to the part from the first release film main body part.
The second slit forming step includes
At the end of the laminate, a full cut step of cutting the first release film, the adhesive layer and the second release film, and
The method for producing a patterned pressure-sensitive adhesive body according to any one of claims 4 to 6, further comprising a connecting step of continuing the cut adhesive layer in the orthogonal direction after the full-cut step.
The method for producing a pattern adhesive body according to claim 7, wherein the connecting step is a step in which the adhesive layer is made continuous by pressing the adhesive layer.
The method for producing a pattern adhesive body according to claim 7 or 8, wherein the first slit forming step and the full cut step are performed simultaneously.