JPH09164800A - Manufacture of light resistant transfer material and light resistant transfer matter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light resistant transfer matter of excellent light resistance, the color of which is hard to be faded or changed in the case the transfer matter is exposed to UV rays. SOLUTION: One absorbing paper provided with a water-soluble paste layer 2 comprising dextrin on its surface is used as a mounting paper 1, over which two colored layers 3 forming a ground masking pattern by the screen printing method in which a white ink containing an epoxy resin as a binder and a white pigment as a coloring agent is used are laminated, and also over which a colored layer 3 forming a fluorescent pattern by the screen printing method in which a fluorescent ink containing an epoxy resin as a binder and a pink fluorescent pigment as a coloring agent are contained in formed. The UV rays absorbing layer 4 comprising 2-hydroxybenzophenone and a methyl methacrylate copolymer is formed by the screen printing method, and further a cover coat layer 5 comprising a silicone resin is formed by the screen printing method to manufacture a light resistant transfer material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-resistant transfer material which is resistant to fading or discoloration even when exposed to ultraviolet rays, and a method for producing a light-resistant transfer material using the same.

[0002]

2. Description of the Related Art Conventionally, as a method of decorating a three-dimensional object, there is a water slide type transfer method. In the water slide type transfer method, a transfer material in which a colored layer 3 is formed on a mount 1 having a water-soluble glue layer 2 on its surface, and a cover coat layer 5 having peeling property is further formed on the colored layer 3 ( 2) is used to immerse the transfer material 6 in water 7 or a water-containing organic solvent to semi-dissolve the water-soluble glue layer 2 (see FIG. 3a), and pull it up to put the mount 1 side on the transfer target 8. After (Fig. 3b
While holding the cover coat layer 5 from the side, the mount 1 is slid and peeled off so that the colored layer 3 and the cover coat layer 5 follow the transfer target 8 (see FIG. 3c), and the cover coat layer 5 is peeled off ( 3d), to obtain the transcript 9. When the transferred material 8 is made of a material such as glass, metal, or thermosetting resin that is difficult to adhere to, the coloring layer 3 is made of thermosetting resin, and the coloring layer 3 is separated by about 60 after the cover coat layer 5 is peeled off. It was cured by heating 10 at a temperature of ˜150 ° C. (see FIG. 3e).

[0003]

However, when a helmet or the like used outdoors is decorated by the above method,
When exposed to sunlight, there is a problem in that the layer containing a pigment having particularly weak light resistance among the colored layers 3 exposed to the ultraviolet rays 11 is discolored or discolored, and the appearance of the transfer material 9 is significantly impaired (see FIG. 4).

Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a light-resistant transfer material which is resistant to fading or discoloration even when the transfer material is exposed to ultraviolet rays and has excellent light resistance. There is.

[0005]

In order to achieve the above object, the light-resistant transfer material of the present invention is such that a coloring layer and a skeleton having an ultraviolet absorbing property are formed on a mount having a water-soluble glue layer on the surface thereof. The ultraviolet absorbing layer containing the acrylic polymer introduced in 1 and the peelable cover coat layer were sequentially formed.

Further, in the above structure, the skeleton having an ultraviolet absorbing property may be a 2-hydroxybenzophenone skeleton.

In each of the above constructions, the resin of the colored layer may be a thermosetting resin.

In the method for producing a light-resistant transfer material of the present invention, the above-mentioned light-resistant transfer material is used as a transfer material, and the transfer material is soaked in water or a water-containing organic solvent to semi-dissolve the water-soluble glue layer and then pulled up to mount it. After the side is overlaid on the transferred material, the backing paper is slide-peeled while holding it from the cover coat layer side so that the coloring layer is aligned with the transferred material together with the ultraviolet absorbing layer and the cover coat layer, and the cover coat layer is dried. It was configured to be peeled off.

In the above structure, after the cover coat layer is peeled off, an overcoat layer made of a thermosetting resin may be formed on the ultraviolet absorbing layer, and the overcoat layer may be heated and cured.

Further, the method for producing a light-resistant transfer material of the present invention uses a light-resistant transfer material in which the resin for the colored layer is a thermosetting resin, and the transfer material is water-soluble by immersing the transfer material in water or a water-containing organic solvent. After the glue layer is semi-dissolved and pulled up, the backing paper side is overlaid on the transferred material, and then the backing paper is slide-peeled while holding it from the cover coat layer side, and the colored layer is transferred together with the UV absorbing layer and the cover coat layer. The cover coat layer was peeled off after drying, and the colored layer was further heated and cured.

In the above construction, the order of peeling off the cover coat layer and heat curing of the coloring layer may be exchanged.

After the peeling of the cover coat layer and the heat curing of the coloring layer, an overcoat layer made of a thermosetting resin may be formed on the coloring layer and the overcoat layer may be heated and cured.

After peeling off the cover coat layer, an overcoat layer made of a thermosetting resin may be formed on the ultraviolet absorbing layer, and the overcoat layer together with the coloring layers may be heated and cured.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in more detail with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the light-resistant transfer material of the present invention. 1
Is a mount, 2 is a water-soluble glue layer, 3 is a coloring layer, 4 is an ultraviolet absorbing layer, and 5 is a cover coat layer.

The light-resistant transfer material 6 of the present invention comprises a mount 1 having a water-soluble glue layer 2 on the surface thereof, a colored layer 3, and an acrylic polymer having a skeleton having an ultraviolet absorbing property introduced into its molecular chain. The ultraviolet absorbing layer 4 and the cover coat layer 5 having a separating property are sequentially formed (see FIG. 1).

The mount 1 has a water-soluble glue layer 2 on its surface, and is for forming and holding each layer thereon. Further, after the transfer material is immersed in water or a water-containing organic solvent, the water-soluble glue layer 2 is semi-dissolved and can be slide-peeled. As the mount 1, there is an absorbing paper or the like. The mount 1 may have a thickness of 100 to 150 g / m ² . As the water-soluble glue layer 2, dextrin,
PVA, CMC or the like may be used. The dry film thickness of the water-soluble glue layer 2 is generally 30 to 100 μm.

As the coloring layer 3, polyvinyl resin, polyamide resin, polyester resin, polyacrylic resin, polyurethane resin, polyvinyl acetal resin, polyester urethane resin, cellulose ester resin, epoxy resin, alkyd resin. It is preferable to use a resin such as melamine-based resin or epoxy melamine-based resin as a binder and a pigment or dye of an appropriate color as a colorant. When the damage transfer material 8 is made of a material such as glass, metal, or thermosetting resin that does not adhere easily, a thermosetting resin or the like may be selected and used as the binder. In addition, a coloring layer 3 containing a dye as a coloring agent
Has particularly low light resistance, so that the effect of the present invention is particularly remarkable. Further, by mixing a stabilizer such as epoxidized fatty oil in the colored layer 3, the light resistance of the colored layer 3 can be enhanced. Further, as a method of forming the colored layer 3, a usual printing method such as an offset printing method, a gravure printing method, a screen printing method can be considered, but the screen printing method is general. In particular, an offset printing method or a gravure printing method is suitable for performing multicolor printing and gradation expression. In the case of a single color, a coating method such as a gravure coating method, a roll coating method, and a comma coating method can be adopted.

The ultraviolet absorbing layer 4 is a layer which absorbs ultraviolet rays when the transferred material is exposed to the ultraviolet rays after the transfer and protects the colored layer 3 and the transferred material thereunder from the ultraviolet rays. As the ultraviolet absorbing layer 4, a layer containing an acrylic polymer having a skeleton having an ultraviolet absorbing property introduced into a molecular chain is used. A 2-hydroxybenzophenone skeleton is a typical example of a skeleton having an ultraviolet absorbing property. More specifically, 2-hydroxy-4- (methacryloyloxyethoxy) benzophenone, 2-hydroxy-4-methacryloyloxybenzophenone, 2-hydroxy-4- (2-hydroxy-
3-methacryloyloxy) propoxybenzophenone. Examples of the method of forming the ultraviolet absorbing layer 4 include a coating method such as a gravure coating method, a roll coating method, and a comma coating method, and a printing method such as a gravure printing method and a screen printing method.

Since the skeleton having an ultraviolet absorbing property is introduced as a molecular chain of an acrylic polymer in the ultraviolet absorbing layer 4, 20 to 80% by weight of the skeleton is introduced with respect to the acrylic polymer. The UV absorption rate is very high. Further, the ultraviolet absorbing layer 4 is very stable because the skeleton having the ultraviolet absorbing ability is introduced as the molecular chain of the acrylic polymer, and the ultraviolet absorbing rate varies over time, There is almost no change such as delamination. Further, the ultraviolet absorbing layer 4 has excellent heat resistance with a decomposition temperature of about 300 ° C. or higher, and does not lose its ultraviolet absorbing function even when the colored layer 3 is heated during transfer.

As the ultraviolet absorbing layer 4, only an acrylic polymer having a skeleton having an ultraviolet absorbing property introduced into a molecular chain is used, and an acrylic polymer having a skeleton having an ultraviolet absorbing property introduced into a molecular chain is used. And other resins may be mixed and used. Resins used for mixing include polyvinyl resins, polyamide resins, polyester resins, acrylic resins, polyurethane resins, polyvinyl acetal resins, polyester urethane resins, cellulose ester resins, and alkyd resins. . Further, when the ultraviolet absorbing layer 4 is required to have hardness, a two-component curable resin, an electron beam curable resin, a thermosetting resin or the like may be selected and used.

The cover coat layer 5 has flexibility, and is for keeping the colored layer 3 along the transferred material while maintaining the pattern and positional relationship when formed on the mount 1. As the cover coat layer 5, for example, polyurethane-based resin, polyvinyl chloride-based resin, silicone resin or the like can be used. In addition, vinyl chloride or acrylic resin, glycol and phthalate ester,
It is also possible to use a mixture of an ester plasticizer such as adipic acid ester or a polyester plasticizer. A screen printing method is generally used to form the cover coat layer 5.

The method for producing a light-resistant transfer material of the present invention is carried out by using the light-resistant transfer material having the above-mentioned layer structure (not shown).
First, the transfer material is dipped in water or a water-containing organic solvent to semi-dissolve the water-soluble glue layer 2, and is pulled up to superimpose the mount 1 side on the transfer target. Next, while holding it from the cover coat layer 5 side with a hand or the like, the mount 1 is slid and peeled off, and the colored layer 3 is placed along the transfer target. After the cover coat layer 5 is dried, it is peeled off to complete the transfer. Water to immerse the transfer material is 20 ~ 30 ℃
It is preferable to use warm water as described above in consideration of the solubility of the water-soluble glue layer and the workability. When the resin of the colored layer is a thermosetting resin in order to easily adhere to the transferred material, the colored layer 3 together with the transferred material is further heated and cured at a temperature of about 60 to 150 ° C. The colored layer 3 is firmly adhered to the surface of the transferred material by heat curing. Further, the peeling of the cover coat layer 5 and the heat curing of the colored layer 3 may be interchanged in order.

The transferred material is a three-dimensional solid material such as a resin molded product, a metal product, a woodwork product or a composite product of these, but the material is not particularly limited. They are,
It may be transparent, semi-transparent or opaque. The transfer object may be colored or non-colored.
Examples of the resin include general-purpose resins such as a polystyrene resin, a polyolefin resin, an ABS resin, an AS resin, and an AN resin. In addition, general-purpose engineering resins such as polyphenylene oxide / polystyrene resin, polycarbonate resin, polyacetal resin, acrylic resin, polycarbonate-modified polyphenylene ether resin, polybutylene terephthalate resin, polybutylene terephthalate resin, ultra-high molecular weight polyethylene resin and polysulfone resin. A super engineering resin such as a polyphenylene sulfide resin, a polyphenylene oxide resin, a polyarylate resin, a polyetherimide resin, a polyimide resin, a liquid crystal polyester resin, or a polyallyl heat-resistant resin can also be used. Further, a composite resin such as FRP added with a reinforcing material such as glass fiber or an inorganic filler can also be used.

After the transfer is completed, an overcoat layer made of a thermosetting resin may be formed on the ultraviolet absorbing layer 4, and the overcoat layer may be heated at a temperature of about 60 to 150 ° C. to be cured. The overcoat layer is for protecting and strengthening the transfer layer. As the overcoat layer, polyurethane resin, polyvinyl chloride resin, melamine resin, etc. can be used. Examples of the method for forming the overcoat layer include dipping, coating such as spraying, and spraying. Alternatively, after the cover coat layer 5 is peeled off, an overcoat layer may be formed on the coloring layer 3 and the coloring layer 3 and the overcoat layer may be heated and cured. In this case, heating is required only once.

[0025]

Example A screen printing method was used in which a piece of absorbent paper having a water-soluble glue layer made of dextrin on the surface was used as a backing paper, and a white ink containing an epoxy resin as a binder and a white pigment as a colorant was used thereon. To form a fluorescent pattern pattern by screen printing using fluorescent ink containing epoxy fluorescent resin as a binder and a pink fluorescent pigment as a coloring agent. did. Next, an ultraviolet absorbing layer made of 2-hydroxybenzophenone and a methyl methacrylate copolymer was formed by a screen printing method, and a cover coat layer made of a silicone resin was formed by a screen printing method to obtain a light resistant transfer material. .

Next, using this light-resistant transfer material, by a transfer method of a slide system, that is, by immersing the transfer material in hot water of 30 ° C. to semi-dissolve the water-soluble glue layer, and pulling it up, the mount side is FR.
After superimposing it on the helmet member made of P, while holding it from the side of the cover coat layer, slide the base paper along the colored layer along the helmet member, peel off the cover coat layer after drying, and further peel the colored layer at 80 ° C. A transfer was obtained by heating and curing for 40 minutes.

Finally, a urethane resin ink is formed on the colored layer as an overcoat layer by a spray method, and the temperature is set to 80 ° C.
It was cured by heating for 40 minutes.

Comparative Example A transfer material was obtained by forming a medium layer made of an epoxy resin in place of the ultraviolet absorbing layer in the example, and a transfer product having the same shape was obtained in the same manner as in the example. The medium layer was formed to prevent the colored layer from being attacked by the solvent when the overcoat layer was formed.

[0029]

[Table 1]

Regarding the transcripts of Examples and Comparative Examples, 2
Time (September 1, 1995, clear weather, 12:00 to 14:00), 4 hours (September 1, 1995, clear weather, 12:00 to 16:00) outdoor exposure, using a color difference meter The light resistance was evaluated by obtaining the difference between the lightness and the portion where the saturation was masked (Table 1).

From these results, it was found that the transfer materials of the examples were able to considerably prevent the discoloration of the colored layer as compared with the comparative examples.

EFFECTS OF THE INVENTION The light-resistant transfer material and the method for producing a light-resistant transfer material of the present invention have the following effects because they have the above-mentioned constitutions. That is, the ultraviolet absorbing layer can absorb the ultraviolet rays before reaching the colored layer, and it is possible to obtain a transfer material having excellent light resistance, which is resistant to fading or discoloration even when exposed to the ultraviolet rays.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a light-resistant transfer material of the present invention.

FIG. 2 is a cross-sectional view showing a conventional transfer material.

FIG. 3 is a cross-sectional view showing a manufacturing process of a transfer product using a conventional transfer material.

FIG. 4 is a perspective view showing a problem of a conventional transfer material.

[Explanation of symbols]

 1 Mount 2 Water-soluble glue layer 3 Coloring layer 4 Ultraviolet absorbing layer 5 Cover coat layer 6 Transfer material 7 Water 8 Transferred material 9 Transferred material 10 Heating 11 Ultraviolet light

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[Procedure amendment]

[Submission date] October 9, 1996

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction contents]

As the coloring layer 3, polyvinyl resin, polyamide resin, polyester resin, polyacrylic resin, polyurethane resin, polyvinyl acetal resin, polyester urethane resin, cellulose ester resin, epoxy resin, alkyd resin. It is preferable to use a resin such as melamine-based resin or epoxy melamine-based resin as a binder and a pigment or dye of an appropriate color as a colorant. When the transferred material 8 is made of a material such as glass, metal, or thermosetting resin that is difficult to adhere, a thermosetting resin or the like may be selected and used as the binder. In addition, a coloring layer 3 containing a dye as a coloring agent
Has particularly low light resistance, so that the effect of the present invention is particularly remarkable. Further, by mixing a stabilizer such as epoxidized fatty oil in the colored layer 3, the light resistance of the colored layer 3 can be enhanced. As a method of forming the colored layer 3, a usual printing method such as an offset printing method, a gravure printing method, a screen printing method, or the like can be considered, but the screen printing method is generally used. In particular, an offset printing method or a gravure printing method is suitable for performing multicolor printing and gradation expression. In the case of a single color, a coating method such as a gravure coating method, a roll coating method, and a comma coating method can be adopted.

Claims (9)

[Claims] 1. A color paper, a UV absorbing layer containing an acrylic polymer having a UV absorbing skeleton introduced into its molecular chain, and a peelable cover coat on a mount having a water-soluble glue layer on its surface. A light-resistant transfer material, wherein layers are sequentially formed. 2. The light-resistant transfer material according to claim 1, wherein the skeleton having an ultraviolet absorbing property is a 2-hydroxybenzophenone skeleton. 3. The light-resistant transfer material according to claim 1, wherein the resin of the colored layer is a thermosetting resin. 4. The light-resistant transfer material according to claim 1 or 2, wherein the transfer material is semi-dissolved by immersing the transfer material in water or a water-containing organic solvent, and pulling it up to transfer the mount side. After overlapping on the object, slide the base paper while holding it from the side of the cover coat layer to align the colored layer with the ultraviolet absorbing layer and the cover coat layer along the transferred material, and peel off the cover coat layer after drying. A method for producing a light-resistant transfer material, which is characterized. 5. The light-resistant transfer material according to claim 4, wherein after the cover coat layer is peeled off, an overcoat layer made of a thermosetting resin is formed on the ultraviolet absorbing layer, and the overcoat layer is heated and cured. Manufacturing method. 6. The light-resistant transfer material according to claim 3,
Immerse the transfer material in water or a water-containing organic solvent to semi-dissolve the water-soluble glue layer, and pull up to put the mount side on the transfer target, then slide off the mount while holding it from the cover coat layer side. A method for producing a light-resistant transfer product, which comprises arranging a colored layer along with an ultraviolet absorbent layer and a cover coat layer along an object to be transferred, peeling off the cover coat layer after drying, and further heating and curing the colored layer. 7. The method for producing a light-resistant transfer product according to claim 6, wherein the order of peeling off the cover coat layer and heat-curing the coloring layer is exchanged. 8. The peeling of the cover coat layer and the heat curing of the colored layer are followed by forming an overcoat layer made of a thermosetting resin on the ultraviolet absorbing layer and heating the overcoat layer to cure. The method for producing a light-resistant transfer product according to claim 7. 9. The light fastness according to claim 6, wherein after peeling off the cover coat layer, an overcoat layer made of a thermosetting resin is formed on the ultraviolet absorbing layer, and the coloring layer and the overcoat layer are both heated and cured. For producing a sex transcript.