JPS6059876B2 - Cosmetic method for base material with unevenness - Google Patents

Description

[Detailed description of the invention] TECHNICAL FIELD The present invention relates to a method for applying makeup to a base material having irregularities.

Conventionally, decoration on the surface of a substrate with unevenness has been done by applying a base coat to the entire surface of the uneven substrate using a coating method such as flow coating to form a base coat layer, and then gravure offset printing on the base coat layer. A decorative pattern was formed according to the law.

However, in this method, if the top surface of the convex part is not a completely smooth surface, the ink will not be completely transferred from the blanket to the top surface of the convex part and will remain on the bracket, resulting in poor precision and sharpness of the decorative pattern. In addition to being damaged, the ink transferred from the blanket to the top surface of the convex portion flows into fine depressions, thereby impairing the precision and sharpness of the decorative pattern. When it is attached to a base material surface, there are drawbacks such as having to go through the above-mentioned gravure offset printing process many times.

In order to solve the above-mentioned drawbacks, the present invention has been developed by forming a base coat layer on the entire surface of a base material having irregularities as a result of research, and then forming a heat-sensitive adhesive layer on the convex portions of the base material covered with the base coat layer. Then, the heat-transferable ink layer side of a transfer paper having a heat-transferable ink layer on the base coat is brought into contact with the surface of the heat-sensitive adhesive layer and heated under pressure to transfer the heat-transferable ink layer onto the heat-sensitive adhesive layer. The inventors have discovered that the above object can be achieved by a method in which the transfer paper is peeled off after the transfer paper has been transferred.

That is, the gist of the present invention is to form a base coat layer by applying a base paint to the entire surface of a base material having irregularities, and to apply a heat-sensitive adhesive onto the convex portions of the base material covered with the base coat layer. to form a heat-sensitive adhesive layer; a step of printing a pattern to be transferred onto the base coat with heat-adhesive ink to form a heat-transferable ink layer to produce a transfer paper; The step of contacting the thermally transferable ink layer surface of the transfer paper with the surface of the adhesive layer, applying pressure and heat to transfer the thermally transferable ink layer onto the heat-sensitive adhesive layer, and then peeling off the transfer paper. There is a method for applying makeup to a base material having unevenness.

The present invention will now be described in detail with reference to the drawings. As shown in the first figure, a base coat layer 2 is formed by applying a base paint to the entire surface of a base material 1 having irregularities by a method such as flow coating or spray coating.

Next, as shown in the second figure, a heat-sensitive adhesive is applied onto the convex portions 3 of the base material 1 covered with the base coat layer 2 by a method such as roll coating to form a heat-sensitive adhesive layer 4.

On the other hand, as shown in FIG. 3, a pattern to be transferred is printed on the base coat 5 using heat-adhesive ink to form heat-transferable ink layers 6 and 7, thereby producing a transfer paper 8. Next, as shown in FIG. 4, the heat-transferable ink layer surface of the transfer paper is brought into contact with the heat-sensitive adhesive layer 3, and the heat-transferable ink layer 6 is applied onto the heat-sensitive adhesive layer 3 by heating and pressing with a hot pressure roller 9. , 7 are transferred, the transfer paper 8 is peeled off, and pattern layers 10 and 11 are formed on the heat-sensitive adhesive layer 3.

Here, the portion of the heat-transferable ink layer that is not in contact with the heat-sensitive adhesive layer 3 is not transferred to the base material, so the concave portions of the base material are not colored, and therefore, a clear pattern with an extremely sharp ring part is printed on the base material. It is painted on top. After the above steps have been carried out, a transparent paint is further applied to the entire surface of the decorated base material by a method such as flow coating or spray coating to form a surface protective layer 12, if necessary. In the above manufacturing method of the present invention, the base material 1 includes natural wood, various types of plywood, chipboard, hardboard, particle board, inflation board, valve cement board, asbestos light calcium board, slate board, etc. Various inorganic plates such as can be used.

Next, use it as a base paint for forming base coat layer 2. Natural resins and their processed resins, alkyd resins, butylated aluminum aldehyde resins, phenol resins, phthalic acid resins, polyamide resins, vinyl resins, acrylic resins, epoxy resins, urethane resins, vinyl butyral resins, etc. Such a synthesis! Paints prepared by kneading organic pigments, inorganic pigments, dyes, etc. as coloring agents using resins, cellulose derivatives such as nitrocellulose, acetyl cellulose, and acetyl butyrol, and rubber derivatives as vehicles can be used.

Next, as a heat-sensitive adhesive for forming the heat-sensitive adhesive layer 4, for example,
Phenolic resin, furan resin, urea resin, melamine resin, polyester resin, polyurethane resin,
Epoxy resins, silicone resins, other thermosetting resins, polyvinyl acetate, polyvinyl alcohol, polyvinyl chloride, polyvinyl butyral, poly(meth)acrylic resins, nitrocellulose, polyamides, other thermoplastic resins, butadiene Acrylonitrile rubber, neoprene, other rubber derivatives, other glue, tin, natural resin, sodium silicate, tin, starch,
As a coloring agent, organic pigments, inorganic pigments,
An adhesive made by kneading a dye or the like can be used.

Next, as the base sheet 5 of the transfer paper, for example, various papers such as thin paper, roll paper, high quality paper, kraft paper, coated paper, various resin films or sheets, metal foils such as aluminum, etc. A lamination film, etc., which is a lamination of two or more of paper and resin films or sheets and metal foil, can be used. The surface of the base sheet is coated with a release agent such as a modified silicone resin modified with silicone resin, polyamide resin, amino alkyd resin, or epoxy resin, polyolefin resin, or metal acetate of higher fatty acid. The mold release treatment may be performed by coating by coating, gravure coating, flow coating, spraying, extrusion coating, or the like. Next, thermal adhesive inks for forming the thermal transferable ink layers 6 and 7 of the transfer paper include various oils and fats such as linseed oil, soybean oil, and synthetic drying oil, rosin, copal, dammar, hardened rosin, and rosin ester. Or natural resins and processed resins such as polymerized rosin, rosin-modified phenolic resin, 100% phenolic resin, maleic acid resin, alkyd resin, petroleum resin, vinyl resin,
Acrylic resin, polyamide resin, epoxy resin,
Synthetic resins such as amino alkyd resins, rubber derivatives such as nitrocellulose, cellulose acetate, cyclized rubber, etc.
Glue, tin, dextrin, tin, etc. are used as constituent materials of the vehicle, and coloring agents such as organic pigments, inorganic pigments, and dyes are added to the vehicle, and furthermore, for example, plasticizers, stabilizers, desiccants,
Optionally add known additives such as auxiliary desiccant, solvent,
An ink that has been thoroughly kneaded with a diluent or the like can be used.

Next, the pattern to be transferred onto the base sheet can be formed using the above ink by a known printing method such as gravure printing, flexographic printing, screen printing, or offset printing. .

Furthermore, in the above-mentioned manufacturing method of the present invention, the conditions for the heat-pressure treatment when transferring the heat-transferable ink layer onto the heat-sensitive adhesive layer include a roll temperature of about 1000C to 250C and a pressure of 2K.
9/d~50k9/d1 speed 5m/ugliness is fierce.

Furthermore, in the above manufacturing method of the present invention, paints for forming a surface protective layer include, for example, natural resins and their processed resins, alkyd resins, butylated aminoaldehyde resins, phenolic resins, phthalic acid resins, amino-blast resins, and polyamides. Synthetic resins such as resins, vinyl resins, acrylic resins, epoxy resins, urethane resins, vinyl butyral resins, etc., and cellulose derivatives such as nitrocellulose, acetylcellulose, acetylbutyrol, etc. as main components. You can use

As detailed above, according to the method of the present invention, the ink layer is completely transferred to the convex portions, so it is possible to apply a clear pattern to the surface of the convex portions on the surface of the convex portions without being affected by the unevenness of the base material. can.

Further, since the transferred ink layer has no fluidity, the ink does not flow into or seep into the fine concave portions of the base material, so that a clear pattern can be applied to the base material.

Next, the present invention will be specifically explained with reference to Examples.

As the base material for the example, we used an inflation board with an uneven pattern similar to that of a brick block.A paint containing a vinyl urethane resin as a binder and a coloring agent, a stabilizer, an auxiliary agent, etc. was flowed over the entire surface of the uneven surface. Apply with coat.

Next, by roll coating, a heat-sensitive adhesive containing a urethane resin as a main component is applied only to the convex surface coated with the base coat.

On the other hand, a brick pattern is printed by gravure printing on the polyethylene surface of a support (transfer paper) made of 23 y/d building material thin paper coated with low density polyethylene to a thickness of 20 μm by gravure printing in the reverse printing order.

The ink used in this case was prepared by kneading a vinyl chloride-acrylic resin as a binder with colorants, plasticizers, stabilizers, solvents, etc. Next, the pattern layer of the transfer paper and the heat-sensitive adhesive layer on the convex portions of the base material were overlapped, and the pattern layer was transferred only to the convex portions of the base material using a transfer roll.

The transfer conditions at this time are that the material of the transfer roll is silicone rubber, the surface temperature is 200℃, the speed is 5 TrL/Tlnl pressure is 1
It was 5k9/Clt. Next, the entire surface of the painted uneven inflation board was coated with a paint mainly composed of urethane resin as a surface protective film using flow coating. The resulting brick-painted textured inflation board was clear and almost indistinguishable from actual bricks.

[Brief explanation of the drawing]

1 to 5 are cross-sectional views showing the process of the makeup method of the present invention. 1...Base material, 2...Base coat layer, 3...Protrusions, 4...Thermosensitive adhesive layer, 5... ...Base sheet, 6,7...
...Thermal transferable ink layer, 8...Transfer paper.

Claims (1)

[Claims] 1. A step of applying a base paint to the entire surface of a base material having irregularities to form a base coat layer, and a step of applying a heat-sensitive adhesive on the convex portions of the base material covered with the base coat layer to form a heat-sensitive adhesive layer. forming a transfer paper by printing a pattern to be transferred on a base sheet with heat-adhesive ink to form a heat-transferable ink layer; The unevenness is characterized by the step of: abutting the thermally transferable ink layer surface of a transfer paper, applying pressure and heating to transfer the thermally transferable ink layer onto the heat-sensitive adhesive layer, and then peeling off the transfer paper. A method for applying makeup to a base material.