JP2000326470A - Laminate and manufacture thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminate which is composed of two pieces of paper laminated in a freely peelable manner through an adhesive layer can be manufactured with high efficiency, and further is free from a blocking phenomenon to be generated during manufacturing and also a curling phenomenon. SOLUTION: This laminate is composed of two pieces of paper 2, 3 laminated, in a freely peelable manner, through an adhesive layer 4, in such a manner that the papers 2, 3 are bonded together by the adhesive layer 4 composed mainly of a wax emulsion in an undried state. During peeling, an adhesive 4 as a structural element is flocculated and broken and at the same time, does not display its adhesive effect again at a normal temperature. In addition, the adhesive layer 4 is formed in such a way that it becomes partially thin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminate applied to a delivery slip or the like used by a delivery company when delivering an article.

[0002]

2. Description of the Related Art Recently, a delivery slip used when a delivery company delivers an article has a structure in which two pieces of paper are stacked releasably via an adhesive layer. Conventionally, a laminate used as a material for such a delivery slip or the like has been configured by, for example, laminating two pieces of paper via a natural rubber-based or acrylic-based pressure-sensitive adhesive.

[0003]

In manufacturing the above-mentioned conventional laminate, the pressure-sensitive adhesive must be completely dried after being applied. Cannot be performed inline with the process of
It was inefficient.

In addition, as a material of the above-mentioned conventional laminated body, a web-shaped piece of paper having a pressure-sensitive adhesive applied to one surface thereof is often used. Such a material is supplied to a manufacturing site in a state of being wound in a roll shape, and is superposed and adhered to a web-shaped piece of paper to which a pressure-sensitive adhesive is not applied, and then cut into a predetermined size.

In some cases, such as a delivery slip composed of a laminate having a structure in which two pieces of paper are laminated so as to be peelable, a part of the paper to be peeled is left without being peeled off. It is necessary to partially increase the peel strength of the body. In order to obtain such a structure of the laminate using the pressure-sensitive adhesive, it is conceivable to partially increase the adhesive strength of the adhesive or partially increase the adhesive pressure. In the case of, when the web-shaped paper piece is wound into a roll, a phenomenon (blocking) in which the pressure-sensitive adhesive adheres to the surface of the paper piece due to the winding pressure may occur, and in the latter case, the laminate is There was a problem in that the curl and appearance deteriorated, and the product value was impaired.

An object of the present invention is to provide a laminate that eliminates the above-mentioned problems.

[0007]

In order to achieve the above-mentioned object, according to the first aspect of the present invention, two pieces of paper are laminated so as to be peelable via an adhesive layer, and the adhesive layer mainly comprises a wax emulsion. A laminate composed of an adhesive that is adhered in an undried state as a component, cohesive breaks at the time of peeling, and does not re-adhere at room temperature, wherein the adhesive layer is formed so as to be partially thin. It is characterized by the following.

According to a second aspect of the present invention, in the laminate of the first aspect, the thinly formed portion of the adhesive layer is in contact with one piece of paper via a synthetic resin layer to which a silicone resin is added. It is a feature.

A third aspect of the present invention is the laminate of the second aspect, wherein the synthetic resin layer is made of an ionizing radiation curable resin.

According to a fourth aspect of the present invention, in the laminated body of the first to third aspects, the front-side paper piece includes a delivery form and a receipt form having a delivery information entry column, and at least the receipt form can be separated. Wherein the adhesive layer is a delivery slip formed so as to be thin at a portion facing the detachable portion.

According to a fifth aspect of the present invention, there is provided the method for manufacturing a laminate according to the first aspect, wherein a step of providing a synthetic resin layer to which a silicon resin is added on one surface of the paper piece, A step of applying the adhesive to one surface of the paper piece, a step of bonding another paper piece to one surface of the paper piece in a state where the adhesive is not dried, and a step of drying the adhesive Characterized by the following.

According to a sixth aspect of the present invention, in the method of manufacturing a laminate of the fifth aspect, the synthetic resin layer is made of an ionizing radiation-curable resin.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a delivery slip 1 according to an embodiment of the present invention, FIG. 2 is a view schematically showing a cross section taken along line AA of FIG. 1, and FIG. 3 is an enlarged view of a portion B of FIG.

The delivery slip 1 is used by a shipping company or the like to send a package to a customer. As shown in FIG. 2, two pieces of paper 2 and 3 are separated via an adhesive layer 4. An adhesive layer 5 is provided on the back surface of the paper piece 3 and a release paper 6 is attached to the adhesive layer 5. Piece of paper 2
Is divided into an invoice 2a, a tag 2b (delivery slip), and a receipt slip 2c by two slits 7 and 8 extending in parallel. Adhesive force suppressing layers (synthetic resin layers) 9 and 10 are provided between the adhesive layer 4 and the portion of the paper piece 3 facing the invoice 2a and the receipt 2c.

The invoice 2a is stored separately from the delivery slip 1 by the recipient of the package, and the receipt 2c is taken away from the delivery slip 1 by the delivery member after the receipt stamp is stamped. On the surface of the invoice 2a, the tag 2b, and the receipt 2c, the date, address and name of the recipient (destination), address and name of the sender, product name and article, quantity, inquiry number (slip number) , Etc., are filled in.

A delivery slip 1 is made of a web-shaped paper piece on which printing necessary for forming a paper piece 2 and a web-shaped paper piece for forming a paper piece 3 are made of an adhesive mainly composed of a wax emulsion. It is formed by cutting after laminating and bonding.

The adhesive is, for example, 10 to 290 parts by weight of a wax emulsion and 10 to 290 parts by weight of a vinyl acetate acrylic copolymer emulsion per 100 parts by weight of water.
Parts by weight (total weight of 300 parts with wax emulsion
Parts by weight), and the thickness after drying with a letterpress or intaglio method from the adhesive force suppressing layers 9 and 10 formed on one surface of the web forming the paper piece 3 The web is applied so as to have a thickness of 1 to 20 μm (a portion facing the adhesive force suppressing layers 9 and 10), and a web forming a paper sheet 2 is bonded to one surface of the web in an undried state. Then, the adhesive is dried by an appropriate method such as warm air.

The wax constituting the wax emulsion includes, for example, animal waxes such as beeswax and seraca wax, vegetable waxes such as carnauba wax, and the like.
Examples thereof include petroleum waxes such as paraffin wax and microcrystalline wax, polyethylene wax, and other synthetic waxes. It is particularly preferable to use polyethylene wax because it has good emulsion stability and is inexpensive.

The vinyl acetate acrylic copolymer emulsion is added to adjust the adhesive strength. The adhesive strength increases as the blending ratio increases, and the adhesive strength decreases as the blending ratio decreases. If the compounding ratio is more than 290 parts by weight, the paper may be broken at the time of peeling, and if it is less than 10 parts by weight, the paper pieces 2 and 3 may be separated during delivery or printing.

The adhesive force suppressing layers 9 and 10 are used to make the invoice 2a and the receipt 2c easier to separate from the sheet 3 than the tag 2b, and are made of ionizing radiation-curable synthetic resin to which a silicone resin is added. Like the adhesive, it is formed on the sheet 3 by a letterpress method, an intaglio method, or the like, and has a thickness of about 1 to 5 μm. Also, the amount of the silicone resin added at that time is suitably 3 to 5 parts by weight.

Silicone resin is added to the adhesion suppressing layers 9 and 10, and the silicone resin has a property of repelling the adhesive. Is applied, the thickness of the portion of the adhesive layer 4 facing the adhesive force suppressing layers 9 and 10 becomes smaller than the thickness of other portions of the adhesive layer 4. Since the adhesive layer 4 has such a property that the force required for cohesive failure becomes smaller as the thickness becomes smaller, the invoice 2a and the receipt 2c are more easily peeled off than the tag 2b.

In this embodiment, the adhesive force suppressing layers 9, 1
By forming 0 with an ionizing radiation-curable resin,
It has the advantage that quick drying and stable adhesive strength can be obtained. As the ionizing radiation-curable resin, for example, an epoxy acrylate, urethane acrylate, an acrylic modified polyester or the like as an oligomer, a monomer such as neopentyl glycol acrylate or trimethylolpropane triacrylate for the purpose of adjusting the crosslinking structure, viscosity, or the like. In the case of ultraviolet curing, a photopolymerization initiator is added to the resin.

The present invention is not limited to the above embodiment, but can be implemented in various modes. For example, the present invention may be applied to a laminate forming a part of a laminate in which three or more pieces of paper are releasably laminated.

Further, in order to partially change the thickness of the adhesive layer, in addition to using the above-described adhesive force suppressing layer to which the silicone resin is added, the adhesive used is repelled or the adhesive is difficult to be attached. May be used. Furthermore, the adhesive layer may be formed by letterpress or intaglio printing, and the thickness of the adhesive layer may be partially changed by partially changing the depth of the plate.

[0025]

As described above, the laminate of the present invention is
Since there is no need to dry the adhesive that forms the adhesive layer,
The step of applying the adhesive can be performed in-line with the step of printing and bonding, and the production can be performed efficiently. Also,
Since the peel strength is partially changed by forming the adhesive layer so as to be partially thin, there is no occurrence of curling or blocking during the manufacturing process.

In the laminate according to the second aspect, the peel strength can be easily adjusted by adjusting the amount of the silicon resin added to the synthetic resin layer.

In the laminate according to the third aspect, since the synthetic resin layer is made of an ionizing radiation-curable resin, quick drying and stable adhesive strength can be obtained, so that production efficiency and quality can be improved. .

According to the method of manufacturing a laminate of the present invention, a thin adhesive layer can be easily formed partially by forming a synthetic resin layer to which a silicone resin has been added in advance. Further, by adjusting the amount of the silicon resin added to the synthetic resin layer, the peel strength can be easily adjusted.

Further, in the method of manufacturing a laminate according to claim 6, the synthetic resin layer is made of an ionizing radiation-curable resin.
Since quick-drying property and stable adhesive strength are obtained, production efficiency and quality can be improved.

[Brief description of the drawings]

FIG. 1 is a plan view of a delivery slip 1 according to an embodiment of the present invention.

FIG. 2 is a diagram schematically showing a cross section taken along line AA of FIG. 1;

FIG. 3 is an enlarged view of a portion B in FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Delivery slip (lamination) 2, 3 Paper piece 4 Adhesive layer 9, 10 Adhesion suppression layer (synthetic resin layer)

Continued on front page F term (reference) 4F100 AJ11G AK01C AK22G AK25 AK25G AK52C AL01G BA02 BA03 BA06 BA10A BA10B BA13 BA44 CA30 CB00 DG10A DG10B EC182 EH112 EH462 GB90 JB14C JK06 JL00 JL02 JL14 J01

Claims (6)

[Claims] 1. A sheet of paper is laminated so as to be peelable via an adhesive layer. The adhesive layer is composed of a wax emulsion as a main component and is bonded in an undried state. A laminate comprising an adhesive that does not re-attach, wherein the adhesive layer is formed to be partially thin. 2. The laminate according to claim 1, wherein a thinly formed portion of the adhesive layer is in contact with one of the pieces of paper via a synthetic resin layer to which a silicone resin is added. 3. The laminate according to claim 2, wherein the synthetic resin layer is made of an ionizing radiation curable resin. 4. A part in which the front-side paper piece includes a delivery slip having a delivery information entry column and a receipt slip, and at least the receipt slip is separable, and the adhesive layer faces the separable part. The laminate according to any one of claims 1 to 3, wherein the laminate is a delivery slip formed so as to be thin. 5. The method for manufacturing a laminate according to claim 1, wherein a step of providing a synthetic resin layer to which a silicon resin is added on one surface of the paper piece, and one surface of the paper piece from above this layer. Applying the adhesive to the paper, bonding the other piece of paper to one surface of the piece of paper in a state where the adhesive is not dried, and drying the adhesive. A method for manufacturing a laminate. 6. The method according to claim 5, wherein the synthetic resin layer is made of an ionizing radiation curable resin.