JP2000305463A - Laminated body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminated body liable to peel partly by laminating two sheets of paper by way of an adhesive layer in a peelable state, carrying out adhesion while the adhesive layer based on a wax emulsion is in the undried state and using an adhesive which causes cohesion failure between the sheets in peeling and does not adhere again at ordinary temperature. SOLUTION: Two sheets 2, 3 of paper are laminated by way of an adhesive layer 4 in a peelable state, a pressure sensitive adhesive layer 5 is disposed on the rear side of the sheet 3 and releasing paper 6 is stuck to the layer 5 to obtain a delivery slip 1 used at the time when a transport company or the like sends a pack to a customer. The sheet 2 is divided by two parallel slits 7, 8 into an invoice 2a, a tag 2b (delivery check) and a receipt 2c. Adhesive strength controlling layers 9, 10 are disposed between the adhesive layer 4 and parts of the sheet 3 confronting the invoice 2a and the receipt 2c.

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 has been formed by laminating two pieces of paper via a natural rubber-based or acrylic-based pressure-sensitive adhesive.

When manufacturing the above-mentioned conventional laminate,
Since the pressure-sensitive adhesive must be completely dried after being applied, the step of applying the adhesive cannot be performed in-line with the step of printing or bonding, which is inefficient.

[0004] Therefore, the applicant of the present application firstly stated that the adhesive layer
Japanese Patent Application No. 11-10430 has proposed a laminate composed of a wax emulsion as a main component, which is adhered in an undried state, cohesive breaks at the time of peeling, and is not re-adhered at room temperature.

[0005]

By the way, in a delivery slip or the like formed of a laminate having a structure in which two pieces of paper are stacked in a releasable manner, peeling may be partially performed. In such a case, It is necessary to make the part to be peeled easier than the other parts.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has as its object that two paper pieces are laminated so as to be peelable via an adhesive layer, and the adhesive layer is mainly composed of a wax emulsion. It is an object of the present invention to provide a laminate composed of an adhesive which is adhered in a dry state, cohesive breaks at the time of peeling, and does not adhere again at room temperature, and which is partially easily peeled.

[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. Adhesion is performed in an undried state as a component, a laminate composed of an adhesive that does not adhere again at room temperature while cohesively breaking at the time of peeling, between the adhesive layer and one piece of paper facing it. In addition, the adhesive layer is partially provided with an adhesive force suppressing layer for causing cohesion and destruction of the adhesive layer at the time of peeling and reducing the peel strength.

According to a second aspect of the present invention, in the laminate of the first aspect, the adhesive layer is formed such that a thickness of a portion in contact with the adhesive force suppressing layer is smaller than thicknesses of other portions. It is characterized by the following.

Further, the invention according to claim 3 is characterized in that, in the laminate according to claim 1, the adhesive force suppressing layer is made of a synthetic resin to which a silicone resin is added.

A fourth aspect of the present invention is the laminate according to the third aspect, wherein the synthetic resin is an ionizing radiation curable resin.

According to a fifth aspect of the present invention, in the laminated body according to the first to fourth aspects, the front side paper sheet includes a delivery slip and a receipt slip having a delivery information entry column, and at least the receipt slip can be separated. And a delivery slip in which the adhesive force suppressing layer is provided on the back surface side of the detachable portion.

[0012]

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. Adhesion suppressing layers 9 and 10 are provided between the adhesive layer 4 and a portion of the paper piece 3 that faces 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 by the delivery member from the delivery slip 1 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.

The delivery slip 1 is made of a web-shaped paper on which printing necessary for forming a paper strip 2 has been applied and a web-shaped paper for forming the paper strip 3 which 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 coated on a web to form a paper sheet 2 or 3 by letterpress or intaglio printing so that the thickness after drying is about 1 to 20 μm,
Each web is bonded in an undried state.

The wax constituting the wax emulsion includes, for example, animal waxes such as beeswax and seraca wax, and vegetable waxes such as carnauba wax.
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 mixing ratio increases, and the adhesive strength decreases as the mixing 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 paper 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 paper surface 3 by a letterpress method or an intaglio method, 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.

As shown in FIG. 3, the adhesion suppressing layers 9, 10
The surface of the silicon resin S is partially exposed to the outside, and the silicon resin S can be peeled off with a very small force from the adhesive layer 4 formed thereon. When the receipt 2c is peeled off, cohesive failure does not occur in the portion between the adhesive layer 4 and the exposed silicon resin S, and the exposed silicon resin S Cohesive failure occurs in portions other than.
Therefore, the force for peeling the invoice 2a and the receipt 2c is smaller than the force for peeling the tag 2b.

In this embodiment, the adhesive force suppressing layer 9
Although 10 is formed of a synthetic resin to which a silicone resin is added, the material of the adhesive force suppressing layers 9 and 10 is not limited to this, and as described above, the adhesive layer 4 is partially cohesively destroyed and peeled off. Other configurations may be used as long as the strength is reduced. In this embodiment, an ionizing radiation-curable resin is used. However, this resin has an 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 adhesive layer 4 has such a property that the force required for cohesive failure increases as the thickness increases, and the thickness of the portion of the adhesive layer 4 in contact with the adhesive force suppressing layers 9 and 10 is determined. By making the thickness smaller than the thickness of the other portions, the invoice 2a and the receipt 2c can be more easily separated. The reason why the thickness of the portion of the adhesive layer 4 in contact with the adhesive force suppressing layers 9 and 10 is smaller than the thickness of the other portions of the adhesive layer 4 is to reduce the depth and coating area of the letterpress and intaglio type plates. Although it can be achieved by partially changing, it is possible to laminate the adhesive force suppressing layers 9 and 10 containing silicon resin on the upper surface of the paper piece 3 and then apply an adhesive for forming the adhesive layer 4 thereon. It can also be achieved by a manufacturing process. That is, since the adhesive does not easily adhere on the adhesive force suppressing layers 9 and 10, the transfer amount of the adhesive from the plate is reduced in the portion where the adhesive force suppressing layers 9 and 10 are present, and the thickness of the adhesive layer 4 is reduced. . In addition, the peeling force of the invoice 2a and the receipt 2c is easily adjusted by adjusting the thickness of the adhesive force suppressing layers 9 and 10 and the amount of a release agent such as a silicone resin added to the adhesive force suppressing layers 9 and 10. be able to.

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.

[0024]

As described above, according to the present invention, the adhesive force between the adhesive layer and one of the paper pieces facing the adhesive layer causes a partial cohesive failure of the adhesive layer during peeling, thereby reducing the peel strength. By providing the suppression layer, the portion corresponding to the adhesive force suppression layer can be easily peeled off.

According to the second aspect of the present invention, the adhesive layer is formed so that the thickness of the portion in contact with the adhesive force suppressing layer is smaller than the thickness of the other portions, so that the portion corresponding to the adhesive force suppressing layer is formed. Can be more easily peeled off.

According to the third aspect of the present invention, since the adhesion suppressing layer is made of a synthetic resin to which a silicone resin is added,
By adjusting the content of the silicone resin, the peeling force of the portion corresponding to the adhesive force suppressing layer can be easily adjusted.

According to the fourth aspect of the present invention, since the synthetic resin constituting the adhesive force suppressing layer is an ionizing radiation curable resin, quick drying and stable adhesive force can be obtained.

[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 2, 3 Paper piece 4 Adhesion layer 9, 10 Adhesion suppression layer

Claims (5)

[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 laminated body composed of an adhesive that does not re-adhere, wherein between the adhesive layer and one of the paper pieces facing the adhesive layer, the adhesive layer partially cohesively breaks at the time of peeling, thereby reducing the peel strength. A laminate, wherein a force suppression layer is partially provided. 2. The laminate according to claim 1, wherein the adhesive layer is formed such that a thickness of a portion in contact with the adhesive force suppressing layer is smaller than thicknesses of other portions. 3. The laminate according to claim 1, wherein the adhesion suppressing layer is made of a synthetic resin to which a silicone resin is added. 4. The laminate according to claim 3, wherein the synthetic resin is an ionizing radiation curable resin. 5. A paper sheet on a front surface side 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 force suppressing layer is provided on the back side of the separable part. The laminate according to any one of claims 1 to 4, which is a delivery slip provided with: