JPH06312599A - Composition for transfer material - Google Patents

Abstract

PURPOSE:To provide a composition for a transfer material in which excellent transferability from a transfer sheet to an element to be transferred can be obtained also on the element to be transferred such as a timber.wood product, etc., and which can contribute to an increase in productivity of the sheet and an improvement in a transferring speed. CONSTITUTION:A composition for an organic solvent transfer material is provided. A transfer material layer forming element indispensably contains wax or the like as release base compound, ethylene vinyl acetate copolymer as ink bonding base compound and acrylic resin as transferability improving base compound.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition for a transfer material, and more particularly, to a transfer paper capable of producing a transfer paper capable of ensuring good transferability even when a wood / wood product is used as a transfer target. The present invention relates to a lumber composition.

Here, wood / wood products include ema and
Examples include battledore / passing bills, jewelry boxes, confectionery boxes, and closets. Further, the wood material includes plywood, laminated wood, hard board (hard fiber slope), particle board and the like.

Here, a case where a wood / wood product is used as a transfer body will be mainly described as an example.
Fabric products such as T-shirts made of woven and non-woven fabrics, bags,
Leather products such as accessory cases, various types of plastics,
The present invention is also applicable to rubber, ceramics (including ceramics), glass, metal, paper products, and the like.

[0004]

2. Description of the Related Art As a technique relating to transfer paper, for example, Japanese Patent Publication No. 3-50720, Japanese Patent Laid-Open No. 5-58053,
Etc. are listed.

The transfer material layer is usually composed of a release layer and an adhesive layer, and the release composition for forming the release layer contains waxes as a main release agent and an adhesive for forming the adhesive layer. The organic compositions were mostly organic solvent-based compositions in which an ethylene vinyl acetate copolymer and / or polyvinyl chloride as an ink binding main agent were essential components, and a wetting dispersant and a defoaming agent were further added.

On the other hand, the above wood / wood products have
With the recent preference, fashion usage, and personalization, it is becoming more common to use transfer paper for decoration.

[0007]

However, all of the above compositions are premised on transfer onto a cloth product, and it is possible to stably secure good transferability onto a wood or wood product. As a result of examination by the present inventors, it was found that it is difficult to cause color bleeding.

Further, it is necessary to separately form the release layer and the adhesive layer, so that it cannot be said that the productivity of the transfer paper is good.

Further, the transfer time is usually 160 to 20.
It was as long as 0 ° C. × 10 to 6 seconds (see Japanese Patent Publication No. 3-50720, column 6, lines 32 to 36), and transfer productivity was not necessarily good.

In view of the above, the present invention can ensure good transferability from a transfer paper to a transfer target even on the transfer target such as wood and wood products, and when a release layer is used. It is an object of the present invention to provide a composition for a transfer material, which does not require separate formation of an adhesive layer, has good transfer paper productivity, and can shorten the transfer time.

[0011]

Means for Solving the Problems The inventors of the present invention have made intensive efforts to solve the above problems, and as a result, have come up with a composition for a transfer material having the following constitution.

Organic solvent-based transfer material compositions comprising waxes as a release main agent, ethylene vinyl acetate copolymer (EVA) as an ink binding main agent, and acrylic resin as a transferability improving main agent Is an essential component of the transfer material layer forming element.

[0013]

Embodiments

A. Next, a detailed description will be given of each component of the above means. In the following description, the mixing unit is a weight unit unless otherwise specified.

(1) The transfer material composition of the present invention is premised to be an organic solvent system.

Here, the organic solvent is not particularly limited as long as it can disperse or dissolve the waxes, EVA and acrylic resin described below, and usually, mineral spirits (petroleum spirit), aromatic hydrocarbons, Etc., the ester-based / ketone-based solvent is appropriately added.

The amount of the organic solvent blended is such that the resin component described below is dissolved and the base sheet (transfer paper support) is used.
The amount should be such that the viscosity can be easily applied on top. Usually, it is 100 to 500 parts with respect to 100 parts of the resin component.

(2) Examples of waxes as a release main agent include aliphatic hydrocarbon waxes (low molecular weight polyethylene, paraffin wax, etc.) and ester waxes (carnauba wax, etc.).

As EVA as the ink bonding main agent,
A vinyl acetate content of 5 to 50% can be used, but a high vinyl acetate content (20% or more) is generally desirable.

(3) The acrylic resin as the main component for improving the transferability is a resin containing all or a main component of a polymer of methacrylic acid ester or acrylic acid ester.

The mixing ratio of the three essential components as the transfer material layer-forming element is such that, when the total amount of the resin components is 100 parts, waxes: 5 to 50 parts (preferably 10 to 40).
Part) EVA: 20 to 90 parts (preferably 40 to 8)
0 part) Acrylic resin: 5-40 parts (preferably 10-3)
0).

(4) Then, a wetting dispersant and a defoaming agent are usually added to the composition for a transfer material of the present invention. As the wetting and dispersing agent, a surfactant is usually used. The wetting and dispersing agent has the function of improving the wettability of the ink and the releasability of the substrate sheet from the transfer-receiving body during transfer. In addition, the defoaming agent has a defoaming action during screen printing.

The above-mentioned surfactant is not particularly limited, such as cationic / anionic, nonionic, and zwitterionic type, but the nonionic type is from the viewpoint of ink compatibility and the like. From desirable. The amount of the wetting and dispersing agent (surfactant) compounded is usually 5 with respect to 100 parts of the resin component.
-20 parts, preferably 7-15 parts.

The defoaming agent is not particularly limited, but usually silicone oil is used. The amount of the defoaming agent added is usually 1 to 10 relative to 100 parts of the resin component.
Parts, preferably 2 to 5 parts.

B. Next, a method for producing a transfer paper using the composition for a transfer material of the present invention will be described (see FIGS. 1 and 2).

(1) The transfer material composition of the present invention having an appropriately adjusted viscosity is applied onto the base material sheet 1 to form the transfer material layer 3. Examples of the coating method include screen printing and gravure printing, and the coating film thickness is usually 1 to 10
The thickness is 0 μm, preferably 10 to 80 μm.

Here, as the base sheet 1, paper sheets such as wax paper, high-quality paper, medium-quality paper, kraft paper, etc., and plastic sheets such as polyester, polypropylene, cellophane, etc. can be used. Here, even when the substrate sheet does not have releasability like plain paper, it is usually unnecessary to form the release layer with the release composition.

(2) Next, on the transfer material layer 3 formed on the base material sheet 1, a reverse image layer (usually a reverse image layer) is formed by a printing / copying method such as screen printing, offset printing or dry electronic copying. , Ink layer) 5 is formed. Thus, the transfer paper 7
To manufacture.

(3) The transfer paper 7 produced in this manner is inverted and placed on the transferred material 9, and is heated by heating means such as a conventional iron, heat roller, thermocompression bonding machine (for example, 1
60 to 180 ° C.), the reversal image layer 5 is transferred onto the transferred material 9 in a very short time (2 to 5 seconds) and the positive image layer 1 is pressed.
Transferred as 1. At this time, the transfer material layer 3 is also peeled from the base material sheet 1 and becomes the binder 13 of the image layer 5.

As the material of the transfer target 9 applicable here, the above-mentioned wood / wood material, woven / nonwoven fabric, and
Ceramic (ceramic), plastic, rubber, glass, etc. are not particularly limited.

When a transfer material such as wood or a wood material is used, it is not necessary to apply a sealing treatment as long as it has a smooth surface, but it is desirable to perform a sealing treatment with clear lacquer coating or the like. .

[0031]

The composition for a transfer material of the present invention comprises a wax as a releasing main agent, an ethylene vinyl acetate copolymer (EVA) as an ink binding main agent, and an acrylic type as a transfer improving agent. Due to the constitution in which the resin is an essential component of the transfer material layer forming element, the following actions and effects are exhibited.

As will be shown in Examples described later, the transferability from the transfer paper to the transfer target is remarkably improved, and good transferability can be secured even on a wood / woody transfer target. The transfer material composition of the present invention generally has almost no adverse effect on transferability even if the release layer and the adhesive layer are not separately formed on the base sheet of the transfer paper, and as a result, the transfer paper is obtained. The number of manufacturing steps can be reduced. Further, the transfer time can be shortened (conventional: 10 to 6 seconds, the present invention: 2 to 5 seconds), the transfer productivity is improved, and the energy can be saved.

[0033]

EXAMPLES The present invention will now be described in more detail based on examples.

A transfer material composition having each composition shown in Table 1 was prepared by stirring and applied to each substrate sheet shown in Table 2 so as to have a film thickness of 50 μm to form a transfer material layer. Then, a reverse color image was printed on the transfer material layer by the printing / copying means shown in Table 2 to manufacture each transfer paper. For color copying, an ink jet type copying machine was used.

Using each of the transfer papers produced in this manner, thermal transfer was performed on each of the transfer targets shown by using a household iron at a transfer condition of 180 ° C. for 3 seconds.

The results are shown in Table 1, and in each of Test Examples 1 to 5 using the transfer paper produced by the composition of the example (the transfer material composition of the present invention), the releasability (transferability) was obtained. Was good, and no transfer defects such as fading, color loss, and color bleeding did not occur, while Test Examples 6 to 7 using the transfer paper produced by the composition of the comparative example showed color defects, fading, and color Transfer defects such as bleeding occurred.

The transferability was judged by the releasability of the transfer material layer from the base sheet. Also, the wash fastness is JI
It measured according to S-L 0844 (method A-2).

[0038]

[Table 1]

[0039]

[Table 2]

* 1) Canna finish, no sealing treatment * 2) Canna finish, urethane clear coating * 3) Surface acrylic urethane coating

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a transfer paper produced using the transfer material composition of the present invention.

FIG. 2 is a schematic cross-sectional view of a structure when transferred to a transfer target by a transfer paper produced by using the transfer material composition of the present invention.

[Explanation of symbols]

 1 Base Material Sheet (Transfer Paper Support) 3 Transfer Material Layer 5 Reverse Image Layer 7 Transfer Paper 9 Transfer Target

Claims (2)

[Claims] 1. A composition for an organic solvent-based transfer material, comprising:
A transfer characterized by containing waxes as a releasing main agent, an ethylene vinyl acetate copolymer as an ink binding main agent, and an acrylic resin as a transferability improving main agent as essential components of a transfer material layer forming element. Composition for lumber. 2. A method for producing a transfer paper, which comprises applying the composition for a transfer material according to claim 1 on a base sheet to form a transfer material layer which also serves as a release layer and an adhesive layer. Method.