JPS6334192A - Print protection member - Google Patents

Abstract

PURPOSE:To discriminate whether the film of a transfer layer is used or unused at a glance, by forming an indication mark covered with a layer to be transparentized by heating in the part other than the transfer layer of a transfer release type print protective member. CONSTITUTION:An arbitrary indication mark 1b is printed on wood free paper 1a and the entire surface of the wood free paper is covered with a resin having various release capacities such as a silicone resin to form a release layer, and a transfer layer 2 is formed on a base material 1 so as to avoid the indication mark 1b. A layer 3 to be transparentized by heating is laminated to the release layer in the upper part provided with the indication mark with an adhesive to obtain a print protective member. Since the layer 3 to be transparentized by heating covering the indication mark 16 is opaque at first, it is difficult to look the indication mark under said layer 3 but the layer 3 is transparentized by heating in a lamination process and the mark printed under the layer 3 can be read easily.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention is used for lamination processing to protect recorded images formed on paper etc. by recording using ink such as inkjet recording and to preserve them with good durability. The present invention relates to a print protection member that can be used to determine at a glance whether or not it has been used, and that can easily prevent the mistake of reusing a used print protection member.

(Prior Art) The inkjet recording method is a recording method in which recording is performed by ejecting small droplets of recording liquid from an orifice of a recording head and depositing them on a recording material such as paper or cloth.
High-speed recording and full-color image recording are possible without the need for special fixing processing, and various types are being actively researched.

However, in prints recorded by such an inkjet recording method, the set of recording liquids used Jt (
The durability, solvent resistance, light resistance, and abrasion resistance of recorded images are not necessarily sufficient due to the relationship between the recording agent as a composition and water or a mixture of water and various organic solvents as a solvent. However, there were problems with the storage stability of the prints, such as it took time to dry and fix after recording, and the recorded images were likely to deteriorate during storage.

As a method for solving such problems and improving storage stability and durability, a method is known in which a transparent resin film having the above-mentioned various properties is laminated onto the print.

This treatment imparts water resistance, light resistance, etc. to the surface of the print covered with the transparent resin film.

As one method for such lamination processing, a method using a transfer-releasable print protection member is known.

In this method, a transfer-releasable protective member consisting of H4 transfer layers mainly made of transparent resin is pressed onto the image surface of the print on a film-like release base that serves as a support, and only the release base is peeled off from there. By transferring the transfer layer to the image-L
In this method, the image surface is laminated with a resin film.

[Problem that the invention seeks to solve]

The transfer layer of the print protection member described in L is often made of a thin, colorless, transparent resin film, and therefore, the unused print protection member with the base and transfer layer of the print protection member peeled off from the image surface after lamination processing. It is difficult to distinguish between the two, and it is easy for users to mistake a base that has been used once and the transfer layer has already been peeled off for an unused base and use it for laminating. There was a problem that the processing rate was low.

The present invention has been made in view of the above-mentioned problems, and its purpose is to provide a print protection member in which it is possible to easily determine at a glance whether the film of the transfer layer is used or unused. There is a particular thing.

(Means for Solving the Problem) The above-mentioned object of the present invention is to provide a transfer-releasable print protection member in which a transfer layer is releasably provided on a substrate, in which a layer other than the transfer layer is provided with a layer that becomes transparent by heating. This is achieved by a print protection member characterized in that an instruction mark covered with is formed.

The present invention will be described below with reference to the drawings.

FIG. 1(8) is a schematic diagram showing an embodiment of the print protection member of the present invention, and FIG. 1(B) is a sectional view thereof.

In the figure, 1 is the base material, 2 is the transfer layer,! b is an instruction mark, 3 is a layer that becomes transparent by heating (hereinafter referred to as a heated transparent layer), and the instruction mark 1b is provided in a portion of the base material 1 that is not covered by the transfer layer 2; Mark Ib
A heating transparent layer 3 is provided on top of the heating transparent layer 3.

The heated transparent layer that covers the above indicator marks is initially opaque, making it difficult to see the indicator marks underneath, but as it is heated during the lamination process, it becomes transparent and is printed underneath. This layer makes it easier to read the marks that were previously used. This layer may be one in which the entire layer becomes transparent by heating, or a layer which becomes transparent by heating may be laminated on a transparent film. The thickness of this layer depends on the thickness of the transfer layer, but is preferably about 10 μm to 40 μm.

Specifically, the preparation of the heated transparent layer is described in Japanese Patent Application Laid-Open No. 1782-1982.
Heated transparent type 0.11. disclosed in Japanese Patent No. 88. The method for producing P film, etc. can be applied.

That is, the dispersant in the thermoplastic resin coating layer provided on the transparent substrate is eluted and removed using a solvent to create voids and form a porous structure, and the binder and thermoplastic resin powder are placed on the substrate. A heating transparent layer 3 can be obtained in which a layer 3b that becomes transparent upon heating is provided on a transparent base material 3a by a method of forming a porous structure by coating the same. (FIGS. 3(A), (II)) The heated transparent layer obtained as described above is initially opaque due to many pores, but when heated, it melts and the pores disappear, making it transparent. In the lamination process, not only heating but also pressure is applied, and this pressure promotes the disappearance of the pores, so that transparency is achieved more effectively.

The heated transparent layer is preferably a layer that melts under conditions that correspond to the heating and pressurizing conditions of the lamination process. For example, the temperature applied in the normal lamination process is 70°C to 15°C.
The layer may be melted by heating for about 0.5 to 1 minute at 0°C. Materials forming such layers include thermoplastic resins such as acrylic polymers, polyvinyl ethers, polyesters, and polyamides.

In addition, the heated transparent layer is not limited to the porous layer mentioned above.
It's okay if the initial color fades or disappears when heated.

An example of the method for producing the protective member of the present invention is shown in FIG.

First, print an arbitrary instruction mark lb on the high-quality paper 1a using a normal printing method (Fig. 2 (A)), and then cover the entire surface of the high-quality paper with a resin with various release properties such as silicone resin to form a release layer. 2(B)), a transfer layer is formed on the base material 1 by the usual method, avoiding the direction marks 1b-E.

Then, the heated transparent layer is pasted with an adhesive or the like on the release layer of the L part where the instruction mark is provided, to obtain the print protection member of the present invention (FIGS. 4(A) and 4(B)).
).

The instruction mark may be a simple shape or color, but it is more effective if it is provided in the form of a pattern, diagram, picture, caution, etc. that specifically indicates that the protective member is a used protective member.

〔Example〕

The present invention will be further explained with reference to specific examples below.

Example 1 High-quality paper (+r+7g/m″・+2
8nusX 202mm) is printed with the word "Used" by υ■ printing at Icm from the short side of the paper, and a release layer of 7 layers of melamine-alkyd resin is applied to the entire surface of the high-quality paper. 100μ) was obtained. Next, tape a 2 cm wide area from the short side of the removable base material, apply a transparent paint with the following composition using a bar coater to a dry film thickness of 15 μm, dry it, and peel off the tape. , overcoating area (portion without transfer layer)
A transfer-releasable print protection member was obtained.

Transparent paint (composition) Further, a heating transparent layer was prepared by the following method.

40μ thick polyester film (manufactured by 1, C, I) taped at 1cm intervals (128mm
182 mm), ethylene-vinyl acetate copolymer (Solex Nippon Gosei Co., Ltd.) was dissolved in toluene in the component ratio shown below, and synthetic zeolite (trade name: Molecular Sieve 13X, Union Showa (trade name: Molecular Sieve 13X) was dissolved in toluene. Co., Ltd.)
The powder was pulverized and dispersed to an average particle size of 5 μm, and coated using a bar coater method in a dry state to a film thickness of 20 μm, and dried in a drying oven at 60° C. for 10 minutes. Further, it was soaked in dilute hydrochloric acid for 24 hours, washed with water, dried at room temperature, and the taping was peeled off to obtain a white opaque layer with 1 cm intervals.

Synthetic zeolite 20 parts by weight Ethylene-vinyl acetate copolymer 40 parts by weight Toluene
40 parts by weight A polyester film provided with a white transparent layer with a width of 1 cm was cut so as to leave an adhesive margin of 5IIIl on both sides of the white transparent layer (Figure 3 (B)), and was prepared first using an adhesive. A transfer-releasable print protection member was obtained which had a heated transparent layer on the registration mark in the painted area of the transfer-releasable print protection member (FIG. 4(B)).

Using this transfer-releasable print protection member, lamination processing was carried out using a commercially available laminator (MS Lamivet Shi-230; Meiko Shokai). As a result, the heating transparent layer, which was opaque after processing, became transparent and the underlying print was removed. I could read the letters clearly. Therefore, it can be seen at a glance that the print protection member has been used for lamination, and there is no need to perform another lamination operation on the used print protection member.

Example 2 Using the same method as in Example 1, a protective material having a painted part was created and the used characters were printed. Styrene-maleic acid copolymer resin (SMA 1440) is used as an anchor coat.
11 Fujii Yoshitsusho Co., Ltd.) was coated using a bar coater method to a dry film thickness of 3 μm, and then a plastic pigment (L-8801 manufactured by Asahi Dow Co., Ltd., average particle size 0.5 mm) was coated as a thermosoluble resin in a dry film. Coat to a thickness of about 15μ, 8
It was dried in a drying oven at 0° C. for 10 minutes to form a white opaque layer.

When a lamination process was performed using this transfer-releasable print protection member, the same effect as in Example 1 was obtained.

[Brief explanation of drawings]

FIG. 1(A) is a schematic view schematically representing the print protection member of the present invention, FIG. 1(B) is a sectional view thereof, FIGS. 2(^) to (C), and FIG. (^) (B), Figure 4 (A
) and (B) are diagrams illustrating the production process of the print protection member of the present invention. 1. Two release bases (base material, process paper) Id: Transfer layer coating area 1a: - High quality paper lb: Arbitrary indication mark IC = Release treatment agent (A1 type layer) 2: Transfer layer 3; Heating transparent layer 3a: transparent base material

Claims (1)

[Claims] A transfer-releasable print protection member in which a transfer layer is releasably provided on a substrate, wherein an instruction mark covered with a layer that becomes transparent when heated is formed in a portion other than the transfer layer. Element.