JP2015174318A - sheet laminate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet laminate making it possible to accurately attach an adhesive sheet at a position that is positioned on an adherend.SOLUTION: A sheet laminate 10 has an adhesive sheet 20, one surface of which serves as an adhesive surface 21, a first release sheet 30 temporarily attached to a first region 21A of the adhesion surface 21, and a second release sheet 40. The second release sheet 40 has a temporary attachment part 41 and a folded part 42 being continuous with the temporary attachment part 41. A temporary attachment surface 41A of the temporary attachment part 41 is temporarily attached to a second region 21B other than the first region 21A on the attachment surface 21. The folded part 42 is folded back in a planar direction on the opposite side of the temporary attachment surface 41A.

Description

  The present invention relates to a sheet laminate.

Conventionally, the sheet laminated body which laminated | stacked the adhesive sheet and the peeling sheet is known (for example, refer patent document 1).
The sheet laminate described in Patent Document 1 includes a double-sided tape (adhesive sheet) and an oval-shaped tubular release liner (release sheet) temporarily attached to one surface of the double-sided tape. In this sheet laminate, after positioning the double-sided tape with respect to the adherend, the tubular release liner is cut, the one end of the cut release liner is pulled, and the release liner is pulled out, so that the double-sided tape is attached to the adherend. It can be pasted.

JP 2000-109767 A

  However, since the conventional sheet laminate as described in Patent Document 1 cannot fix the adhesive sheet at a position positioned with respect to the adherend, the release sheet is pulled out and the adhesive sheet is attached to the adherend. There is an inconvenience that the adhesive sheet is misaligned when pasting.

  The objective of this invention is providing the sheet | seat laminated body which can stick an adhesive sheet correctly in the position positioned with respect to the to-be-adhered body.

  The sheet laminate of the present invention is connected to an adhesive sheet having one surface as an adhesive surface, a first release sheet temporarily attached to the first region of the adhesive surface, a temporary attachment portion, and the temporary attachment portion. The temporary attachment surface of the temporary attachment portion is temporarily attached to a second region other than the first region of the adhesive surface, and the return portion is folded in a surface direction opposite to the temporary attachment surface. The second release sheet is provided.

  The sheet laminate of the present invention includes a double-sided adhesive sheet in which one surface is a first adhesive surface and the other surface is a second adhesive surface, and a first temporarily attached to a first region of the first adhesive surface. 1 peeling sheet, a temporary attachment part, and the folding part connected to the temporary attachment part, and the temporary attachment surface of the temporary attachment part is temporarily attached to 2nd field other than the 1st field in the 1st adhesion side In addition, the folded portion includes a second release sheet folded in a surface direction opposite to the temporary attachment surface, and a third release sheet temporarily attached to the second adhesive surface. .

In the sheet laminate of the present invention, it is preferable that the folded portion includes a protruding portion that protrudes from an outer edge of the temporary wearing portion in a state of being in contact with the temporary wearing portion.
The sheet laminate of the present invention preferably includes temporary attachment means capable of maintaining a state in which the folded portion is folded in the surface direction opposite to the temporary wearing surface.

  According to the present invention, the adhesive sheet is positioned with respect to the adherend, the first release sheet is peeled from the adhesive sheet, and the first region on the adhesive surface of the adhesive sheet is attached to the adherend, and then the folded portion Since the adhesive sheet can be pulled out, the adhesive sheet can be accurately pasted at the position positioned with respect to the adherend.

In addition, if the folding portion is provided with the protruding portion, the protruding portion can be pulled out by gripping the protruding portion while the adhesive sheet is positioned with respect to the adherend. The adhesive sheet can be applied more accurately at the position.
Furthermore, when provisional attachment means is provided, it is possible to prevent the folded-back portion from being disturbed when handling the sheet laminate.

(A) is a side view of the sheet | seat laminated body which concerns on 1st Embodiment of this invention. (B) is the top view of the sheet | seat laminated body seen from the peeling sheet side. The side view which shows the usage example of the sheet | seat laminated body of FIG. The side view of the sheet | seat laminated body which concerns on 2nd Embodiment of this invention. The side view which shows the usage example of the sheet | seat laminated body of FIG. The top view which shows the modification of a sheet laminated body.

Hereinafter, each embodiment of the present invention will be described with reference to the drawings.
In the second embodiment and the modified example, the same components as those described in the first embodiment and the components having the same functions are denoted by the same reference numerals as those in the first embodiment. The description of is omitted or simplified.
In each embodiment and modification, the X axis, the Y axis, and the Z axis are orthogonal to each other, the X axis and the Y axis are axes in a predetermined plane, and the Z axis is in the predetermined plane. The axes are orthogonal. Furthermore, in each of the embodiments and the modified examples, when viewed from the front side of FIG. 1A parallel to the Y axis, the “up” is the “arrow” in the Z-axis arrow direction when the direction is indicated. Is the reverse direction, “Left” is the arrow direction of the X axis, “Right” is the reverse direction, “Front” is the front direction perpendicular to the plane of the Y axis, and “Back” is the reverse direction.

[First Embodiment]
In FIG. 1, the sheet laminate 10 is temporarily attached to the adhesive sheet 20 whose one surface is the adhesive surface 21 and the first region 21 </ b> A of the adhesive surface 21 by the adhesive AD layer laminated on the base material BS. The first release sheet 30 has a temporary attachment portion 41 and a folded portion 42 connected to the temporary attachment portion 41, and the temporary attachment surface 41 </ b> A of the temporary attachment portion 41 is a second region other than the first region 21 </ b> A on the bonding surface 21. 21B, and the folded portion 42 was folded back in the surface direction opposite to the temporary attachment surface 41A, and the folded portion 42 was folded in the surface direction opposite to the temporary attachment surface 41A. Temporary attachment means 70 capable of maintaining the state.

  The first release sheet 30 has a shape in which a part of the outer edge follows a part of the outer edge of the adhesive sheet 20. The first release sheet 30 is set to have substantially the same thickness as the combined thickness of the temporary attachment portion 41 and the folded portion 42 of the second release sheet 40. Note that the first release sheet 30 is temporarily attached to the first region 21A of the adhesive surface 21, and as shown by a two-dot chain line in FIG. 1B, the gripping portion 30A protruding from the outer edge of the adhesive sheet 20. May be provided.

  In the second release sheet 40, the temporary attachment surface 41 </ b> A is temporarily attached to the adhesive surface 21 in a state in which the bent edge 43 where the temporary attachment portion 41 and the folded portion 42 are connected is adjacent to the first release sheet 30. The temporary attachment portion 41 has a shape in which a part of the outer edge follows a part of the outer edge of the adhesive sheet 20. The folded portion 42 is connected to the temporary attachment portion 41, and is provided on the opposite side of the folding end edge 43 with respect to the overlap portion 44 and the overlap portion 44 that overlaps the temporary attachment portion 41. And a protruding portion 45 that protrudes from the outer edge of the temporary attachment portion 41 in a state of being in contact with 41. In the case of the present embodiment, the overlapping portion 44 has a shape in which the outer edge follows the outer edge of the temporary wearing portion 41.

  As shown by a two-dot chain line in FIG. 1, the temporary attachment means 70 is formed of an adhesive or an adhesive tape that folds the protruding portion 45 toward the base BS, and bonds the protruding portion 45 to the base BS. The part 45 and the base material BS can be easily separated. The temporary attachment means 70 may be provided between the overlapping portion 44 and the temporary attachment portion 41, or an adhesive tape that adheres to the upper surfaces of both the protruding portion 45 and the base material BS that are folded back to the base material BS side. But you can. Further, the temporary attachment means 70 has a re-temporary attachment function that allows re-attachment again after separating the protruding portion 45 and the base material BS or after separating the overlapping portion 44 and the temporary attachment portion 41. Also good.

  The materials of the first and second release sheets 30 and 40, the base material BS, and the adhesive AD layer are not limited, and the first and second release sheets 30 and 40 may be, for example, high-quality paper, glassine paper, and coat Paper such as paper, laminated paper obtained by laminating a thermoplastic resin such as polyethylene on these papers, polyester (eg, polyethylene terephthalate, polyethylene naphthalate), polyolefin (eg, polypropylene, polyethylene), polyvinyl chloride, polyvinylidene chloride, Examples thereof include plastics such as polystyrene, polycarbonate, polyvinyl alcohol, polyurethane, and acrylic resins, and celluloses such as cellulose triacetate, cellulose diacetate, and cellophane. In addition to the above, the base material BS can be exemplified by rubber such as natural rubber and silicon rubber, wood, metal, ceramics, glass, stone, etc., and the adhesive AD layer can be acrylic, rubber or silicon. The pressure sensitive adhesive can be exemplified. In addition, the thickness of these 1st and 2nd peeling sheets 30 and 40, base material BS, and adhesive agent AD layer can employ | adopt the thing of appropriate thickness in light of technical common sense.

Hereinafter, a procedure for attaching the adhesive sheet 20 to the adherend WK will be described.
First, the protruding portion 45 temporarily attached by the temporary attachment means 70 is separated from the base material BS, and / or the overlapping portion 44 temporarily attached by the temporary attachment means 70 and the temporary attachment portion 41 are separated. At this time, the temporary attachment means 70 may be removed from the sheet laminate 10 or may not be removed.

  Next, as shown in FIG. 2 (A), the adhesive sheet 20 with the first and second release sheets 30 and 40 temporarily attached is positioned with respect to the adherend WK, such as a manpower or an elastic member. In a state where the adhesive sheet 20 is pressed against the adherend WK by a pressing means (not shown), the first release sheet 30 is peeled from the first region 21A by a peeling means (not shown) such as a hand or a suction pad (first release sheet 30). In the case where the gripping portion 30A is provided, the gripping portion 30A may be gripped and peeled off). Thereafter, as shown in FIG. 2B, the first region 21A is pasted on the adherend WK by hand or pressing means (not shown). Next, as shown in FIG. 2C, the second release sheet 40 is gripped by the hand or gripping means (not shown) such as a chuck cylinder while pressing the adhesive sheet 20 by hand or pressing means (not shown). As shown in FIG. 2D, the entire adhesive surface 21 is attached to the adherend WK.

  According to the embodiment as described above, the adhesive sheet 20 is positioned with respect to the adherend WK, the first release sheet 30 is peeled from the adhesive sheet 20, and the first region 21A on the adhesive surface 21 of the adhesive sheet 20 is obtained. Since the folded-back part 42 can be pulled out after affixing on the adherend WK, the adhesive sheet 20 can be affixed accurately at the position positioned with respect to the adherend WK. Note that the first release sheet 30 is peeled from the first region 21A manually or by a peeling means (not shown), and then the adhesive sheet 20 is positioned with respect to the adherend WK, and the first region 21A is attached to the adherend WK. After that, even if the second release sheet 40 is pulled out and pasted in the same manner as described above, the adhesive sheet 20 can be pasted accurately at the position positioned with respect to the adherend WK.

[Second Embodiment]
In FIG. 3, the sheet laminate 10 </ b> A has a double-sided adhesive sheet 50 in which one surface is a first adhesive surface 51 and the other surface is a second adhesive surface 52, and a first region 51 </ b> A of the first adhesive surface 51. The temporary release portion 30 temporarily attached to the temporary attachment portion 41, the folded portion 42 connected to the temporary attachment portion 41, and the temporary attachment surface 41 A of the temporary attachment portion 41 in the first adhesive surface 51. While temporarily attached to the second region 51B other than the region 51A, the folded portion 42 was temporarily attached to the second adhesive sheet 52 and the second adhesive sheet 52 folded in the surface direction opposite to the temporary attachment surface 41A. The 3rd peeling sheet 60 and the temporary attachment means 70 which can maintain the state which turned the folding | returning part 42 in the surface direction on the opposite side of 41 A of temporary attachment surfaces are provided.

The first and second release sheets 30 and 40 have the same configuration as in the first embodiment, and are different only in being temporarily attached to the first adhesive surface 51 of the double-sided adhesive sheet 50, so the description thereof is omitted. .
Further, the third release sheet 60 has a shape in which the outer edge follows the outer edge of the double-sided adhesive sheet 50, and can be composed of the same as the first and second release sheets 30 and 40.
Furthermore, the adhesive constituting the double-sided adhesive sheet 50 can also be made of the same adhesive as the adhesive AD layer of the first embodiment, and one surface of the adhesive is a first adhesive surface 51, and the other The surface is the second adhesive surface 52.
Further, in the case of this embodiment, the temporary attachment means 70 folds the protruding portion 45 toward the third release sheet 60 as shown by a two-dot chain line in FIG. 3, and connects the protruding portion 45 and the third release sheet 60. The thing to adhere | attach and the thing similar to 1st Embodiment can be illustrated.

Hereinafter, a procedure for attaching the double-sided adhesive sheet 50 to the first adherend WK1 and the second adherend WK2 will be described.
First, as shown in FIG. 4 (A), the third release sheet 60 is peeled from the second adhesive surface 52 by a peeling means 91 such as a hand or a suction pad. Next, as shown in FIG. 4B, the first pressing unit 92 and the first pressing unit 92 are pressed while the second pressing surface 52 is pressed against the first adherend WK1 by the first pressing unit 92 such as a hand or a pressing roller. The second adhesive surface 52 is adhered to the first adherend WK1 while the relative movement of the adherend WK1 and expelling air between the first adherend WK1 and the second adhesive surface 52. Next, as shown in FIG. 4C, the first release sheet 30 is peeled from the first adhesive surface 51 by manpower or the peeling means 91. Next, as shown in FIG. 4 (D), the double-sided adhesive sheet 50 is positioned with respect to the second adherend WK2, and the first adherend WK1 and the double-face are pressed by the second pressing means 93 such as a hand or an elastic member. The adhesive sheet 50 is pressed toward the second adherend WK2, and the first region 51A is attached to the second adherend WK2. Next, as shown in FIG. 4 (E), the first adherend WK1 and the double-sided adhesive sheet 50 are pressed against the second adherend WK2 by the hand or the second pressing means 93, and the hand or the chuck cylinder is held. The means 94 grips the protrusion 45 and pulls out the second release sheet 40, and as shown in FIG. 4 (F), the entire first adhesive surface 51 is attached to the second adherend WK2.

The present embodiment as described above also has the same effect as the first embodiment.
Further, since the double-sided adhesive sheet 50 having the first adherend WK1 attached to the second adhesive surface 52 can be positioned with respect to the second adherend WK2, the first adherend is provided via the double-sided adhesive sheet 50. The body WK1 can be attached to a predetermined position of the second adherend WK2.

  As described above, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described with particular reference to certain specific embodiments, but without departing from the spirit and scope of the invention, Various modifications can be made by those skilled in the art in terms of material, quantity, and other detailed configurations. In addition, the description of the shape, material, and the like disclosed above is exemplary for ease of understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of some or all of such restrictions is included in this invention.

For example, the first release sheet 30 is temporarily attached to the first region 21A (51A) as shown in FIGS. 5C, 5D, 5F, and 5G, similarly to the second release sheet 40. The temporary attachment portion 31 and the folded portion 32 connected to the temporary attachment portion 31 and folded back in the surface direction opposite to the temporary attachment surface may be provided. At this time, as shown in FIG. 5C, the folded portion 32 has the folded edge 33 facing the folded edge 43 of the second release sheet 40, and in the direction opposite to the folded direction of the folded portion 42. It may be folded back, as shown in FIG. 5 (D), may be folded along the bent edge 43 of the second release sheet 40, or as shown in FIGS. 5 (F) and (G). Alternatively, the folded portion 42 may be folded in a direction parallel to the folded portion 42 and opposite to the folded direction of the folded portion 42. In this case, the folded portion 32 is connected to the temporary attachment portion 31, and is provided on the opposite side of the folding edge 33 with respect to the overlap portion 34 and the overlap portion 34, and the overlap portion 34 is provided. A protruding portion 35 that protrudes from the outer edge of the temporary wearing portion 31 while being in contact with the temporary wearing portion 31 is provided.
Further, the outer edge shape of the first release sheet 30, the temporary attachment portion 31, and the folded portion 32 (superimposition portion 34) may not be a shape along a part of the outer edge of the adhesive sheet 20 or the double-sided adhesive sheet 50.
Furthermore, the folding | returning part 32 may have a shape narrowed gradually toward the protrusion part 35 from the bending edge 33, as shown in FIG.5 (C).

Moreover, the 1st peeling sheet 30 may be comprised with two or more so that division | segmentation peeling is possible similarly to the 2nd peeling sheet 40 shown to FIG.5 (E).
Furthermore, the first release sheet 30 may be formed so as to protrude from the outer edge of the adhesive sheet 20 or the double-sided adhesive sheet 50 as shown in FIG.
In addition, the first release sheet 30 has the same thickness as the temporary attachment portion 41 and the folded portion 42, larger or smaller than the thickness of the temporary attachment portion 41 and the folded portion 42, or the temporary attachment portion 41 and the folded portion. The thickness may be larger or smaller than the combined thickness of 42, and the thickness can be arbitrarily determined.
Furthermore, the position where the grip portion 30A is provided is not limited to the position shown in FIG. 1B, and may be any position that protrudes from the outer edge of the adhesive sheet 20 or the double-sided adhesive sheet 50 at the outer edge of the first release sheet 30. The grip portion 30A may not be provided.
Moreover, the thickness of the temporary attachment part 31 and the folding | returning part 32 may be the same thickness, or different thickness.
Furthermore, the position where the protruding portion 35 is provided is not limited to the position shown in the figure, and may be any position as long as the protruding portion 35 protrudes from the outer edge of the temporary wearing portion 31 in a state where the overlapping portion 34 is in contact with the temporary wearing portion 31. May not be provided.
In addition, the overlapping portion 34 may be smaller than the temporary attachment portion 31 and may have a size that does not protrude from the outer edge of the temporary attachment portion 31 while being in contact with the temporary attachment portion 31.

As shown in FIG. 5A, the second release sheet 40 may have a temporary attachment portion 41 or a folded portion 42 formed in a rectangular shape, and an outer edge of the temporary attachment portion 41 or the folded portion 42 (overlapping portion 44). The shape may not be a shape along a part of the outer edge of the adhesive sheet 20 or the double-sided adhesive sheet 50.
Furthermore, the folding | returning part 42 may have a shape narrowed gradually toward the protrusion part 45 from the bending edge 43, as shown to FIG.5 (B)-(D).
Further, as shown in FIG. 5E, a plurality of the second release sheets 40 may be configured so as to be able to be divided and peeled.
Furthermore, the temporary attachment part 41 may be formed so as to protrude from the outer edge of the adhesive sheet 20 or the double-sided adhesive sheet 50 as shown in FIG.
Moreover, the thickness of the temporary attachment part 41 and the folding | returning part 42 may be the same thickness, or different thickness.
Further, the position where the protruding portion 45 is provided is not limited to the position shown in the figure, and any position that protrudes from the outer edge of the temporary wearing portion 41 in a state where the overlapping portion 44 is in contact with the temporary wearing portion 41 may be used. May not be provided.
Further, the overlapping portion 44 may be smaller than the temporary attachment portion 41 and may have a size that does not protrude from the outer edge of the temporary attachment portion 41 while being in contact with the temporary attachment portion 41.

Further, the third release sheet 60 may have a larger outer shape than the double-sided adhesive sheet 50, or may have a shape that does not follow the outer edge of the double-sided adhesive sheet 50.
Further, the position where the temporary attachment means 70 is provided can be arbitrarily determined.
Further, the temporary attachment means 70 may be provided so that the folded portion 32 of the first release sheet 30 can be folded back in the surface direction opposite to the temporary attachment surface. In this case, the protruding portion 35 is provided as a base material. Folded to the BS side, the protruding portion 35 and the base material BS are bonded, or provided between the overlapping portion 34 and the temporary attachment portion 31, or the protruding portion 35 is folded to the third release sheet 60 side, and the protruding portion 35 and the third release sheet 60 can be bonded together.

Further, the shape of the adhesive sheet 20 and the double-sided adhesive sheet 50 may be a circle, an ellipse, a polygon such as a triangle or a pentagon, and other irregular shapes.
Furthermore, the adhesive surfaces 21 and 51 of the adhesive sheet 20 and the double-sided adhesive sheet 50 have other regions such as a third region, a fourth region,... In addition to the first regions 21A and 51A and the second regions 21B and 51B. There may be another release sheet temporarily attached to the other region, or the release sheet may not be temporarily attached. Note that an adhesive may be laminated in the other region, and although the adhesive surfaces 21 and 51 are referred to, the adhesive may not be partially or entirely laminated.

  In addition, the material, type, shape, and the like of the adhesive sheet 20, the double-sided adhesive sheet 50, and the adherends WK, WK1, and WK2 in the present invention are not particularly limited. For example, the adhesive sheet 20 and the double-sided adhesive sheet 50 are not limited to adhesive forms such as pressure-sensitive adhesiveness, heat-sensitive adhesiveness, and the like. What is necessary is just to make it stick using the suitable heating means which heats the adhesive sheet 50. FIG. The adhesive sheet 20 may be, for example, a sheet having an intermediate layer between the base material BS and the adhesive AD layer or a cover layer having three or more layers such as a cover layer on the upper surface of the base material BS. 50 may have a single layer or a multilayer intermediate layer, or may have a single layer or a multilayer without an intermediate layer. Moreover, as each adherend WK, WK1, WK2, for example, food, resin containers, semiconductor wafers such as silicon semiconductor wafers and compound semiconductor wafers, information recording substrates such as circuit boards and optical disks, glass plates, steel plates, pottery, Arbitrary forms of members and articles such as wood boards or resin boards can also be targeted. In addition, the adhesive sheet 20 and the double-sided adhesive sheet 50 are replaced with functional and application readings, for example, information description labels, decorative labels, protective sheets, dicing tapes, die attach films, die bonding tapes, recording layer forming resins. It is good also as arbitrary sheets, films, tapes, etc. of arbitrary shapes, such as a sheet.

DESCRIPTION OF SYMBOLS 10, 10A Sheet laminated body 20 Adhesive sheet 21 Adhesive surface 21A, 51A 1st area | region 21B, 51B 2nd area | region 30 1st release sheet 40 2nd release sheet 41 Temporary attachment part 41A Temporary attachment surface 42 Folding part 45 Overhang | projection part 50 Both surfaces Adhesive sheet 51 First adhesive surface 52 Second adhesive surface 60 Third release sheet 70 Temporary attachment means

Claims (4)

An adhesive sheet in which one surface is an adhesive surface;
A first release sheet temporarily attached to the first region of the adhesive surface;
A temporary attachment portion and a folded portion connected to the temporary attachment portion, the temporary attachment surface of the temporary attachment portion is temporarily attached to a second region other than the first region of the adhesive surface, and the folded portion is the A sheet laminate comprising a second release sheet folded back in a surface direction opposite to the temporary attachment surface. A double-sided adhesive sheet in which one surface is a first adhesive surface and the other surface is a second adhesive surface;
A first release sheet temporarily attached to the first region of the first adhesive surface;
A temporary attachment portion and a folded portion connected to the temporary attachment portion, and the temporary attachment surface of the temporary attachment portion is temporarily attached to a second region other than the first region on the first adhesive surface; A second release sheet folded back in the surface direction opposite to the temporary attachment surface,
A sheet laminate comprising a third release sheet temporarily attached to the second adhesive surface.   3. The sheet laminate according to claim 1, wherein the folded portion includes a protruding portion that protrudes from an outer edge of the temporary wearing portion in a state of being in contact with the temporary wearing portion.   The sheet laminate according to any one of claims 1 to 3, further comprising temporary attachment means capable of maintaining a state in which the folded portion is folded in a surface direction opposite to the temporary attachment surface. .

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