JP2005173045A - Composite sheet, manufacturing method thereof, and processing method thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a composite sheet capable of separating labels, cards and the like at a low manufacturing cost.
SOLUTION: A composite sheet 1 has a base sheet portion 15 having an adhesive layer 13 formed on one side of a first sheet-like support 11, and a release layer 19 formed on one side of a second sheet-like support 17. The release sheet portion 21 is provided. At the edge of the region corresponding to the label portion 5, a cut 23 is made in the base sheet portion 15 so that the label portion 5 can be separated from other regions (residual regions). At the edge of the region corresponding to the member card part 3, a perforation cut 25 is made in both the base sheet part 15 and the release sheet part 21, and when the perforation cut 25 is cut, the member card part 3 is separable from other regions (residual regions). In the release layer 19, a region other than the label portion 5 is coated with a release inhibitor 29 that reduces the peelability of the release layer 19 </ b> A, and the release property of the release layer 19 is higher than that of the release layer 19 </ b> B in the label portion 5 region. Remarkably reduced.
[Selection] Figure 2

Description

  The present invention relates to a composite sheet, a manufacturing method thereof, and a processing method thereof.

  In general, a composite sheet such as a tack sheet is obtained by laminating a base sheet portion having an adhesive layer on a release sheet portion, but a part of the base sheet portion of a single composite sheet as a composite sheet having a special structure. There is known a composite sheet that can be used as a sheet or a card in a state where only the sheet is peeled off as a label and the other part of the base sheet portion is fixed to the release sheet portion (see, for example, Patent Document 1).

As shown in FIG. 8, in the composite sheet 61, the right half 63 </ b> A of the base sheet portion 63 can be separated by the left half 63 </ b> B and the cut 65. Further, the adhesive layer 63C of the right half 63A is overlapped with the release layer 67C of the right half 67A of the release sheet portion 67 and can be peeled off, and the adhesive layer 63C of the left half 63B is peeled off from the release sheet portion 67. The left half 67B is bonded to the surface on which the release layer 67C is not formed, and the left half 63B is fixed to the release sheet portion 67 so as not to be peeled off.
Japanese Patent Laid-Open No. 2001-271048 (FIG. 1)

  By the way, in order to produce the composite sheet 61 having this structure, first, as shown in FIG. 9, the adhesive layer 63 </ b> C of the base sheet portion 63 is overlaid on the release layer 67 </ b> C of the release sheet portion 67. (See FIG. 9A). Next, the separation sheet portion 67B in the region corresponding to the back surface of the left half 63B of the base sheet portion 63 is separated (see FIG. 9B), and after reversing the front and back of the separation sheet portion 67B, the separation sheet portion 67B is accurately separated. The left half 63B of the base sheet portion 63 is fixed to the release sheet portion 67 so as not to be peeled off (see FIG. 9C).

  In this way, the composite sheet 61 once overlaps the base sheet portion 63 and the release sheet portion 67, then peels off a part of the release sheet portion 67, and further removes the release sheet portion 67 that is reversed to the peeled portion. Since it is manufactured through a complicated process of pasting, there is a problem that the manufacturing cost becomes high.

  Further, in the above manufacturing method, it is necessary to securely peel a part of the release sheet portion 67, align and re-paste, but in general, a composite sheet is continuous at a speed of several meters per minute or more. Since it is produced, even if it is produced at this speed, it is easy to peel off and re-paste the shape, size, arrangement, etc. of the part in order to reliably peel off and re-paste that part. It was necessary to devise so. For this reason, there has been a problem that the shape, size, arrangement, etc. of the label portion or card portion are restricted.

  Of course, in order to manufacture a composite sheet having a special structure as described above, for example, a silicone release agent may be partially printed on the release sheet portion.

  However, in order to partially print the silicone release agent, it is necessary to perform gravure printing from the viscosity of the coating liquid. The gravure printing plate for partial printing has a problem that its production cost is increased because a predetermined shape region of the copper layer is partially corroded with a corrosive liquid.

  This invention is completed based on the above situations, Comprising: It aims at obtaining the manufacturing cost cheaply for the composite sheet which can isolate | separate a label, a card | curd, etc.

  As a means for achieving the above object, the invention of claim 1 includes a base sheet having a pressure-sensitive adhesive layer on substantially the entire surface of one side, and a substantially single-sided surface superimposed on the pressure-sensitive adhesive layer of the base sheet. A composite sheet comprising a release sheet having a release layer on the entire surface, wherein the base sheet or the release sheet has a cut for separating a partial region from the remaining region, and the release layer or the adhesive. In the agent layer, the portion corresponding to the remaining region is coated with an inhibitor that reduces the peelability of the release layer.

  The invention according to claim 2 is a substrate sheet forming step of forming a substrate sheet having an adhesive layer by applying an adhesive to substantially the entire surface of one surface of the first sheet-like support, and one surface of the second sheet-like support. A release sheet forming step of forming a release sheet having a release layer by applying a release agent over substantially the entire surface of the release sheet, a partial region of the release layer of the release sheet, or a partial region of the adhesive layer of the base sheet The inhibitor layer applying step for applying a substance that inhibits the peelability of the release layer, and after the inhibitor substance applying step, the release sheet and the substrate sheet are overlapped with each other. And a lamination step of laminating as described above.

  The invention of claim 3 is such that a base sheet having a pressure-sensitive adhesive layer on substantially the entire surface of one side and a release sheet having a release layer on substantially the entire surface of one side are overlapped with the pressure-sensitive adhesive layer and the release layer. A processing method for processing a laminated composite sheet, the composite sheet separating step for separating the composite sheet into the base sheet and the release sheet, and the release layer of the release sheet after the composite sheet separation step Inhibiting substance application step of applying a substance inhibiting the peelability of the release layer to a partial area of the substrate sheet or a partial area of the pressure-sensitive adhesive layer of the base sheet, and after the inhibiting substance application step, the release sheet is It is a processing method of the composite sheet characterized by including the lamination process of re-lamination so that the said peeling layer and the said adhesive layer may overlap with a base material sheet.

<Invention of Claim 1>
According to the composite sheet of claim 1, the base sheet or the release sheet is formed with a cut for separating a partial region from the remaining region, and the release layer of the release sheet has a portion corresponding to the remaining region. Is coated with an inhibitor that reduces the peelability of the release layer.
Therefore, in a partial region of the base sheet or the release sheet, the release layer has a normal peelability. Therefore, if this partial region is peeled along the cut line, it can be used as a label or the like.

  On the other hand, in the remaining area of the base sheet or the release sheet, the release layer has the peelability lowered by the inhibitor. Therefore, it is difficult to peel off the remaining area and can be used as a card or paper.

In the composite sheet of the present invention, a release layer is formed on almost the entire surface of one side of the release sheet. In order to form this release layer, it is generally necessary to gravure the release agent to be applied (for example, silicone release agent), but when the release agent is printed on almost the entire surface of one side of the release sheet. For this, a plate in which the copper layer is partially corroded becomes unnecessary, and a plate in which the entire area of the copper layer is corroded may be used. Therefore, the printing cost can be reduced because the plate can be made cheaply.
On the other hand, the inhibitory substance can be printed by, for example, letterpress printing, lithographic printing, stencil printing, flexographic printing or the like because of the viscosity of the coating liquid. In these printings, a plate for partially applying the inhibitor can be made inexpensively, and the printing cost is also reduced.
For the reasons described above, the manufacturing cost of the composite sheet of this claim is low.

<Invention of Claim 2>
According to the manufacturing method of claim 2, it is not necessary to apply the release agent to almost the entire surface of one side of the release sheet and to apply it partially.
Therefore, a gravure printing plate in which the entire area of the copper layer is corroded may be used. Therefore, the printing cost can be reduced because the plate can be made cheaply.
On the other hand, according to the manufacturing method of claim 2, the inhibitory substance is partially applied, but the inhibitory substance is, for example, letterpress printing, lithographic printing, stencil printing, flexographic printing, etc. from the viscosity of the coating liquid. Can also be printed. In these printings, a plate for partially applying the inhibitor can be made inexpensively, and the printing cost is also reduced.
For the above reasons, according to the manufacturing method of claim 2, the manufacturing cost of the composite sheet is reduced.

<Invention of Claim 3>
According to the processing method of claim 3, a general-purpose composite sheet, that is, a composite sheet obtained by laminating a base sheet having an adhesive layer on almost the entire surface of one side and a release sheet having a release layer on the almost entire surface of one side. By using this, it is possible to manufacture a composite sheet that can be used as paper or a card in such a manner that only a part is easily peeled off as a label and the other part of the base sheet part is fixed to the release sheet part.

<First Embodiment>
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 3.
The composite sheet 1 of the present embodiment is a member card section 3 for proving that it belongs to a predetermined group within one composite sheet 1, a label section 5 for describing a member number, etc., and a group to a member. And a paper section 7 on which information and the like are described. In the embodiment, the composite sheet 1 in which characters and the like are already printed on the member card unit 3, the label unit 5, and the paper unit 7 is shown, but these characters and the like are usually printed when shipped from the manufacturer. It is not printed and is printed by the user.

  In detail, as shown in FIG. 2, the composite sheet 1 includes a base sheet portion 15 in which an adhesive layer 13 is formed on one side of a first sheet-like support 11 made of, for example, paper having a printing surface 11 </ b> A, for example, The composite sheet 1 includes a release sheet portion 21 having a release layer 19 formed on one side of a second sheet-like support 17 made of paper.

And the adhesive layer 13 of the base material sheet part 15 and the peeling layer 19 of the peeling sheet part 21 are overlaid. For the release layer 19, for example, a silicone-based release agent can be used. As the silicone-based release agent, generally known release paper silicones can be used, and any of addition type and ultraviolet curable type in the classification based on the reaction mechanism can be used. Moreover, any of the solvent type, emulsion type, and solventless type in the classification according to the coating form can be used.
At the edge of the region corresponding to the label portion 5, a cut 23 is made in the base sheet portion 15 so that the label portion 5 can be separated from other regions (residual regions). On the other hand, a perforation 25 is formed in both the base sheet 15 and the release sheet 21 at the edge of the region corresponding to the member card 3, and when the perforation 25 is cut, the member is cut. The card unit 3 can be separated from other areas (residual areas).

Furthermore, in the composite sheet 1 of the present embodiment, the release layer 19A in the region other than the label portion 5, that is, the member card portion 3 and the paper portion 7 is reduced in the peelability of the release layer 19A. A peelability-inhibiting substance 29 such as an adhesive is applied, and the peelability is remarkably lowered as compared with the peelable layer 19B in the region of the label portion 5. Therefore, in the area of the member card part 3 and the paper part 7, the base sheet part 15 is difficult to peel from the release sheet part 21.
In addition, as the peelable inhibiting substance 29, any substance that can adhere to both the peelable layer 19 and the pressure-sensitive adhesive layer 13 can be used without any particular limitation. For example, a silicone pressure-sensitive adhesive can be used as the peel-inhibiting substance 29, and the silicone pressure-sensitive adhesive can be used in any of an addition-curing type or a peroxide-curing type in classification based on a crosslinking curing reaction. . Further, any of methyl and phenyl groups in the classification based on organic groups can be used.
On the other hand, the peeling layer 19B in the region of the label portion 5 is not peeled off and thus has high peelability, and the base sheet portion 15 of the label portion 5 can be easily peeled off from the peeling sheet portion 21. .

Next, the manufacturing method of this composite sheet 1 is demonstrated.
First, an adhesive is applied to almost the entire surface of one side of the first sheet-like support 11 by flat printing or the like to form the adhesive layer 13, that is, an adhesive layer is formed on almost the entire surface of one side of the substrate sheet portion 15. 13 (refer to the base sheet forming step, FIG. 3A).
On the other hand, a release agent is applied to almost the entire surface of one side of the second sheet-like support 17 by gravure printing or the like to form the release layer 19, that is, almost the entire surface of one side of the release sheet portion 21 is made the release layer 19 ( Release sheet forming step, see FIG.
Further, a part of the release layer 19 of the release sheet part 21 (an area other than the label part 5 and corresponding to the member card part 3 and the paper part 7) has, for example, a release property such as a silicone adhesive. Inhibitory substance 29 is applied by flat printing or the like (inhibitory substance application step, see FIG. 3B).
Then, the release sheet portion 21 and the base sheet portion 15 are laminated so that the release layer 19 and the pressure-sensitive adhesive layer 13 overlap (lamination process, see FIG. 25 is inserted (see the cut forming process, see FIG. 2).

  Next, the function and effect of this embodiment will be described. In the composite sheet 1 of the present embodiment, the peelability-inhibiting substance 29 is applied to the release layer 19A in the area of the member card portion 3 and the paper portion 7, and the peelability is remarkably lowered in this area. In these regions, the base sheet portion 15 is difficult to peel from the release sheet portion 21. On the other hand, the release layer 19B in the region of the label portion 5 is not peeled off and thus has high peelability, and the base sheet portion 15 of the label portion 5 can be easily peeled from the release sheet portion 21.

Further, in the composite sheet 1 of this embodiment, the release layer 19 is formed on almost the entire surface of one side of the release sheet portion 21. In order to form the release layer 19, the entire area of the copper layer is simply corroded. A gravure printing plate may be used. Therefore, the printing cost can be reduced because the plate can be made cheaply.
On the other hand, since the peelability inhibiting substance 29 is applied by flat printing or the like, the printing cost is low. Therefore, the composite sheet 1 of this embodiment has a low manufacturing cost.

Second Embodiment
Next, the second embodiment will be described with reference to FIG. 4 corresponding to FIG. 3 of the first embodiment. In the second embodiment, only the configuration different from that of the first embodiment will be described, and other configurations, operations, and effects that are the same as those of the first embodiment will be omitted. In addition, the same code | symbol as 1st Embodiment is attached | subjected about the same structure.
The present embodiment is a processing method for processing a general-purpose composite sheet 1. That is, as shown in FIG. 4 (A) in detail, a general-purpose composite sheet 1, a base having an adhesive layer 13 formed on the entire surface of one side of a first sheet-like support 11 made of, for example, paper having a printing surface 11A. This is a method of processing the composite sheet 1 including the material sheet portion 15 and the release sheet portion 21 having the release layer 19 formed on the entire surface of one side of the second sheet-like support 17 made of, for example, paper.

First, the general-purpose composite sheet 1 is separated into a base sheet portion 15 and a release sheet portion 21 (composite sheet separation step, FIG. 4B).
Further, a part of the release layer 19 of the release sheet part 21 (an area other than the label part 5 and corresponding to the member card part 3 and the paper part 7) has, for example, a release property such as a silicone adhesive. Inhibitory substance 29 is applied (inhibitory substance application step, see FIG. 4C).
Then, the release sheet portion 21 and the base sheet portion 15 are re-laminated so that the release layer 19 and the pressure-sensitive adhesive layer 13 overlap each other (lamination process, see FIG. 4D), and a break 23 is formed at a predetermined position. , 25 are inserted (see the cut forming process, see FIG. 2).

  Thus, according to the processing method of this embodiment, the general-purpose composite sheet 1 is used so that only a part is easily peeled off as the label part 5, and the other part of the base sheet part 15 is the release sheet part 21. It is possible to manufacture the composite sheet 1 that can be used as a sheet or a card in a state of being fixed to the sheet.

<Third Embodiment>
Next, a third embodiment of the present invention will be described with reference to FIG. 5 corresponding to FIG. 2 of the first embodiment. In addition, about the same structure as 1st Embodiment, the same code | symbol is attached | subjected and description of a structure, an effect | action, and an effect is abbreviate | omitted.

The third embodiment is different from the first embodiment in that the printing surface 17A is provided in the release sheet portion 21 and the cut 23 is also put in the release sheet portion 21.
In this composite sheet 1, when a part of the release sheet portion 21 is peeled off from the cut 23, the label portion 5 whose one surface becomes a release surface is separated.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) In the above embodiment, the silicone adhesive is described as an example of the peelability inhibiting substance. For example, a rubber adhesive, an acrylic adhesive, a vinyl acetate adhesive, and a urethane adhesive are also used. can do.
However, when a silicone release agent is used for the release layer, it is desirable to use a silicone adhesive as an inhibitor. This is because the affinity between the silicone-based release agent and the silicone adhesive is high. The silicone adhesive can be printed on the silicone release layer by, for example, letterpress printing, flat plate printing, stencil printing, flexographic printing, etc. due to the viscosity of the coating liquid, etc. Therefore, it is desirable to mix an ink component that easily adheres to the silicone-based release layer into the silicone adhesive.
(2) In the said 1st Embodiment, although the peelable inhibitor 29 was apply | coated to the one part area | region of the peeling layer 19 of the peeling sheet part 21, as shown in FIG. A peelable inhibitor 29 may be applied to a partial area 13 (see the state of FIG. 6B). FIG. 6 corresponds to FIG. 3 of the first embodiment.

(3) In the said 2nd Embodiment, although the peelability inhibiting substance 29 was apply | coated to the one part area | region of the peeling layer 19 of the peeling sheet part 21, as shown in FIG. A peelable inhibitor 29 may be applied to a partial region 13 (see the state of FIG. 7C). FIG. 7 corresponds to FIG. 4 of the second embodiment.
(4) In the above embodiment, the card portion and the label portion have been described with respect to the shape, size, and arrangement shown in FIG. 1, but the shape, size, and size of the peelable region and the difficult to peel region are as follows. There is no particular limitation. Further, the use and size of the card part are not particularly limited.
(5) In the above embodiment, the printing surfaces 11A and 17A can be printed by an inkjet printer, but the printing surface 11A may be printable by various printers such as a thermal transfer printer and a laser printer, Moreover, it may be writable by handwriting.
(6) In the present invention, the material of the first sheet-like support 11 and the second sheet-like support 17 is not particularly limited. The size of the composite sheet is not particularly limited, and may be, for example, A3, A4, A5, A6, B4, B5, a postcard, or the like.

Surface view of the composite sheet of the first embodiment of the present invention II-II sectional view of FIG. Sectional drawing explaining the manufacturing method of a composite sheet Sectional drawing explaining the processing method of the composite sheet of 2nd Embodiment Sectional drawing of the composite sheet of 3rd Embodiment Sectional drawing explaining other embodiment of the manufacturing method of a composite sheet Sectional drawing explaining other embodiment of the processing method of a composite sheet Cross section of conventional composite sheet Sectional drawing explaining the manufacturing method of the conventional composite sheet

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Composite sheet 3 ... Member card part 5 ... Label part 7 ... Paper part 11 ... 1st sheet-like support 11A ... Printing surface 13 ... Adhesive layer 15 ... Base material sheet part 17 ... 2nd sheet-like support DESCRIPTION OF SYMBOLS 19 ... Release layer 21 ... Release sheet part 23 ... Cut 25 ... Cut 29 ... Release inhibitor

Claims (3)

A composite sheet comprising a base sheet having a pressure-sensitive adhesive layer on substantially the entire surface of one side, and a release sheet superposed on the pressure-sensitive adhesive layer of the base sheet and having a release layer on substantially the entire surface of one side, The base sheet or the release sheet is formed with a cut for separating a partial region from the remaining region, and the release layer or the pressure-sensitive adhesive layer of the release layer has a portion corresponding to the remaining region. A composite sheet, wherein an inhibitor that lowers the peelability is applied. A base sheet forming step of forming a base sheet having an adhesive layer by applying an adhesive to substantially the entire surface of one side of the first sheet-like support;
A release sheet forming step of forming a release sheet having a release layer by applying a release agent to almost the entire surface of one side of the second sheet-like support;
An inhibitor applying step of applying a substance that inhibits the peelability of the release layer to a partial region of the release layer of the release sheet or a partial region of the adhesive layer of the base sheet;
A method for producing a composite sheet comprising: a lamination step of laminating the release sheet and the base sheet so that the release layer and the pressure-sensitive adhesive layer overlap after the inhibitor application step. Processing a composite sheet in which a base material sheet having a pressure-sensitive adhesive layer on almost one whole surface and a release sheet having a release layer on almost one whole surface are laminated so that the pressure-sensitive adhesive layer and the peeling layer are stacked. A processing method,
A composite sheet separating step for separating the composite sheet into the base sheet and the release sheet;
Inhibitory substance application step of applying a substance that inhibits the peelability of the release layer to a partial area of the release layer of the release sheet or a partial area of the adhesive layer of the base sheet after the composite sheet separation step When,
A method of processing a composite sheet, comprising: a layering step in which the release sheet is re-laminated on the base sheet so that the release layer and the pressure-sensitive adhesive layer overlap after the inhibitor application step.

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