JPH10183080A - Composite film and preparation of surface-coated material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a composite film which can impart excellent coating appearance and coating properties to the surface of an adherend in finishing ranging from mirror finish to high-grade finishing such as open pore finishing, and to provide a process for preparing a surface-coated material using the same. SOLUTION: This composite film 7 is used for a resin coating on the surface of an adherend 3. The composite film comprises at least a water-soluble resin coating film 10 provided on a surface as a face 100 to be bonded to the adherend; and a substrate sheet 5 which serves to fix the water-soluble resin coating film and, at the same time, is permeable to light and/or an electron beam. At least the water-soluble resin coating film provided on the boding face of the composite film can be cured in intimate contact with the adherend containing water 6 being interposed therebetween and can be fixed to the adherend to form a water-insoluble resin coating. The coverage of water is pref. 1.5 to 10g/m<2> .

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite film for coating the surface of wood, plastic, ceramics, stone, concrete, metal, and the like, and a method for producing a surface coating using the composite film, and particularly to daily maintenance and management. And a composite film for providing a coating for decoration and protection.

[0002]

2. Description of the Related Art Conventionally, when decorating or protecting an adherend such as wood, plastic, ceramics, stone, concrete, and metal, a liquid paint is generally applied to the surface of a surface coating. However, liquid paint has a fatal drawback because it is liquid. That is,
It sometimes spilled or spilled during painting and adhered to places that should not be painted. In addition, it may adhere to the body of the coating operator. In addition, coating unevenness easily occurs, and it is difficult to obtain a coating film having a uniform thickness. In particular, in the case of a colored paint, unevenness in the thickness of the coating film tends to cause color unevenness. Further, at the time of coating, the organic solvent contained in the paint often volatilizes, so that the gas such as the organic solvent fills the working chamber and the working environment is likely to be deteriorated. Therefore, large-scale painting equipment such as a painting booth was required.

On the other hand, as a composite film which solves these drawbacks, a coating optical system (1988, Vol.
o. 7, 271) is known. In addition, Japanese Unexamined Patent Publication
As described in US Pat. No. -166000, an application film is provided to prevent entrapment of bubbles which are likely to be generated when the composite film is attached to an adherend,
Devices have been devised to facilitate positioning of the composite film when pasting.

Further, as described in Japanese Patent Application Laid-Open No. 5-38797, a semi-cured resin film having excellent stretchability is attached to an adherend and then light cured.
There is a composite film that can be stuck not only on a flat article but also on an article surface having irregularities or surfaces.

[0005]

However, in the above-described conventional composite film, even though a mirror-like surface can be formed on the adherend, it is possible to faithfully and beautifully express extremely fine irregularities on the adherend surface. Can not.

In order to beautifully express unevenness, it was still necessary to rely on a conventional liquid paint. That is, the conventional composite film has been used to form a smooth surface by canceling out fine irregularities such as, for example, a wood conduit, as being undesirable. For this reason, it has been extremely difficult to realize a subtle finishing method such as open pore finishing that is well known in the field of woodwork painting.

[0007] Here, the open pore finish is applied to a solid material or a veneer material of a natural base material, and a dilute liquid paint is directly permeated into the base material without filling a conduit with a filler or the like. A paint finishing method that aims at preserving the naturalness of the material by applying a thin coating film to the surface.

In view of the above problems, the present invention provides a composite film capable of imparting excellent coating film appearance and coating film properties to the surface of an adherend from mirror finishing to high-grade finishing such as open pore finishing. , And a method for producing a surface coating using the same.

[0009]

The invention of claim 1 is a composite film for forming a resin coating film on the surface of an adherend, wherein the composite film has at least a surface which is to be in close contact with the adherend. A water-soluble resin coating film provided, and a base sheet that fixes the water-soluble resin coating film and transmits light or / and an electron beam, and has at least a surface serving as an adhesion surface with an adherend. The provided water-soluble resin coating film is cured in a state in which water is interposed between the adherend and the water-soluble resin coating and adheres to the adherend, and is fixed to the adherend and is a water-insoluble resin coating. A composite film having a film-forming property, and wherein at least one of the water-soluble resin coating films has a property of being cured by irradiation with light or / and an electron beam. It is.

Next, the operation and effect of the present invention will be described. The composite film of the present invention has a water-soluble resin coating film or /
Then, water is applied to the surface of the adherend, and the composite film is adhered to the adherend. Then, a part or the whole of the water-soluble resin coating film is dissolved to be in a dissolved state or a gel state.

The water-soluble resin coating in a dissolved or gel state penetrates into the adherend depending on the surface structure of the adherend. The penetration characteristics of this water-soluble resin coating film are determined by the physical properties of the water-soluble resin coating film in the dissolved or gel state, the physical properties of the resin coating film immediately after curing, the strength of the adhesive force of the resin coating film to the adherend, and its distribution. Is an important factor that has a great impact. In addition, the penetration characteristics of the water-soluble resin coating film, the distribution of the degree of curing of the resin coating film based on the difference in the reach of light or / and electron beam due to the unevenness of the surface of the adherend, namely, the base sheet It is an important factor that greatly affects the position of the peeling interface and its surface shape that occur when the substrate sheet is removed after irradiation with light or / and an electron beam from above.

Further, the dissolution rate of the water-soluble resin coating film, the physical properties of the water-soluble resin coating film in a dissolved or gel state, and the physical properties of the resin coating film immediately after curing, such as tackiness and viscoelasticity, are
The adjustment is made in consideration of the affinity between the surface of the adherend and the water-soluble resin coating film in a dissolved state or a gel state. As a result, the water-soluble resin coating film can enter the reduced unevenness existing on the surface of the adherend such as a wood conduit. In addition, the whole or a part of the water-soluble resin coating film can be cured.

When a resin film having irregularities is obtained, for example, a part of the water-soluble resin that has entered the irregularities on the surface of the adherend is left in a dissolved state or a gel state. Most of the water-soluble resin that has entered the irregularities on the surface of the adherend is removed together with the base sheet by removing the base sheet. Thereby, irregularities having a shape and size almost similar to the minute irregularities on the surface of the adherend can be formed on the surface of the resin coating film, and an open pore finish can be realized.

Also, unlike the above-mentioned case, when obtaining a resin coating having a mirror surface, at least the water-soluble resin coating provided at least on the surface in close contact with the adherend is hardened or cured.
Alternatively, it is cured so that the peeling interface of the water-soluble resin coating film becomes flat. Thus, the surface of the resin coating film can be mirror-finished by removing the base sheet.

After the composite film is placed on the surface of the adherend, it is preferable to press the composite film from above with a roller such as rubber, plastic, metal, wood, or the like, a round bar, an ironing tool such as a spatula, or the like. Thereby, the water-soluble resin coating film and the adherend can be securely adhered to each other.

Further, the composite film may be pressed against the adherend by rotating a thin disk on the composite film along a straight groove on a wooden flooring surface. Thereby, the straight groove on the flooring surface can be accurately reproduced on the surface of the resin coating film.

The irradiation of light and / or electron beam may be repeated from the front side of the substrate sheet. Further, during the repeated irradiation, each time, the ironing tool or the rotating thin disk may be used to press down the composite film.

Further, it is preferable that after the substrate sheet is removed, the surface of the resin coating is irradiated again with light and / or an electron beam. Thereby, the resin coating film can be more firmly fixed to the adherend, and the property of not dissolving in water can be further enhanced.
The light and / or electron beam to be re-irradiated need not have the same wavelength and intensity as the light or / and electron beam irradiated before removing the base sheet. In addition, the irradiation again
It may be repeated several times or may be repeated a plurality of times.

Further, according to the composite film of the present invention, a resin coating film can be formed without generating bubbles between the resin coating film and the adherend. Further, a resin coating film without wrinkles can be formed.

On the other hand, unlike the present invention, when a water-insoluble resin coating film is provided instead of a water-soluble resin coating film on the contact surface between the composite film and the adherend, Water cannot be used for dissolving or gelling the coating film. Generally, a liquid organic solvent is applied and adhered.

In this case, it is difficult to adjust the viscosity or evaporation rate of the organic solvent and the rate of penetration into the adherend. Therefore, it is difficult to make the water-insoluble resin coating adhere to the adherend. In addition, bubbles are easily generated between the resin coating film and the adherend, and wrinkles are easily generated in the resin coating film. At this time, if wood with a large amount of conduit is used as the adherend,
The resin coating cannot hold a sufficient amount of organic solvent to fill the irregularities of the conduit portion. Therefore, it is considered that a minute gap is generated between the resin coating film and the adherend, and air or gas is sealed in the gap and appears as bubbles.

Further, when a resin film is fixed to the composite film, an organic solvent applied between the two may overflow from an end face between the two, and may stain an adherend or a work table.
Further, it may adhere to the body or the like of the worker's hand or the like. Organic solvents are generally harmful to the human body and are not only irritating to the skin, but may even cause rashes.

However, in the composite film of the present invention, not an organic solvent but water is interposed between the water-soluble resin coating and the adherend. Therefore, even if water overflows between the two, there is no adverse effect on the human body and the like, and it is extremely safe. In addition, the water-soluble resin coating,
Unlike other organic solvent-based resin coatings, the organic solvent-based gas, which is harmful to the human body such as rash and carcinogen, does not volatilize and contaminate the air.

Conventionally, before the adherend and the composite film are brought into close contact with each other, the surface of the adherend is washed with a release agent, an organic solvent, a detergent, or the like to remove dirt adhering to the surface of the adherend. It has been common practice to remove, wash, and then perform a final wash with water and wipe off the water. However, in the composite film of the present invention, since water is interposed between the composite film and the adherend, the composite film can be immediately adhered to the adherend immediately after the ordinary cleaning operation. Therefore, the work of wiping water is unnecessary. Therefore, the time for forming the resin coating film can be reduced.

In the fixing process for fixing the water-soluble resin coating on the adherend, the water-soluble resin coating is maintained in a stable dissolved state or gel state. Therefore, the water-soluble resin coating film is firmly fixed to the adherend. Therefore, according to the composite film of the present invention, unlike the case of other composite films, it is not necessary to use a large-sized fixing facility such as a vacuum press or a pressure press.

Further, in the composite film of the present invention,
At least one water-soluble resin coating is cured by irradiation with light or / and an electron beam. Therefore, the adherend is less likely to be thermally and mechanically affected. Therefore, the resin coating film can be cured without giving a large thermal or mechanical deformation to the adherend.

The composite film of the present invention has one or more water-soluble resin coatings. When the composite film has one water-soluble resin coating film, the water-soluble resin coating film is provided on a surface which is to be in close contact with an adherend, and is cured by irradiation with light or / and an electron beam. Having.

On the other hand, when the composite film has two or more water-soluble resin coatings, at least one of the water-soluble resin coatings has a property of being cured by light or / and electron beam irradiation. I just need. In this case, the water-soluble resin coating film provided on the surface of the composite film, which is to be in close contact with the adherend, may have a property of being cured by means other than light or / and electron beam irradiation. That is, the water-soluble resin coating film provided on the adhesive surface of the composite film may be, for example, one that is cured by being affected by the resin coating film that is in close contact with the water-soluble resin coating film.

The base sheet may be any resin having a property of transmitting light or / and an electron beam for curing the resin coating film. Examples thereof include polystyrene, acrylic polymers, polycarbonate, polyvinyl chloride, polystyrene, and the like. Acetonitrile-based resins such as polypropylene, alkylbenzenesulfonic acid, polyethylene terephthalate, PEN (which means polyethylene naphthalate; the same applies hereinafter), polyvinyl alcohol, cellulose acetate, cellulose butyrate, and surface-treated paper can be used.

The base sheet may be of any type and thickness depending on the properties, size and shape of the resin coating film and the type of light or / and electron beam to be irradiated. Further, the above-mentioned base sheet, after fixing the resin coating to the adherend, various known various types of water-insoluble resin coating can be left on the adherend and only the base sheet can be removed. Surface treatment can be applied.

The adherend has a smooth surface or an uneven surface. The adherend may be any material that can form a resin coating film, such as wood, plastic, ceramics, stone, concrete, and metal. Further, the adherend may be a coated body whose surface is already coated with a coating film.

Next, as in the second aspect of the present invention, the water-soluble resin coating film provided on the adhesive surface of the composite film comprises a reactive compound having a vinyl group and a functional group, a reaction initiator, and a curing agent. It is preferable to contain an agent. The water-soluble resin coating has a property of being cured by irradiation with light or / and an electron beam, for example. Thereby, the effect of the present invention can be more effectively exhibited.

The above-mentioned vinyl group may have any structure similar to a vinyl group, and examples thereof include a vinyl group, an acryloyl group, a methacryloyl group, an allyl group and an intramolecular double bond.

Examples of the reactive compound having a vinyl group and a functional group include epoxy acrylate oligomer, alkyd acrylate oligomer, urethane acrylate oligomer, polyester acrylate oligomer, melamine acrylate oligomer, polybutadiene acrylate oligomer, spirane acrylate oligomer, and the like. Unsaturated polyester resin, unsaturated (meth) acrylic resin, alkyd resin, polyether acrylic resin,
There are urethane acrylic resins, epoxy resins, and the like, all of which can be used alone or in combination of two or more.

As the reaction initiator, according to the classification described on page 152 of UV / EB curing technology (1972, Publishing Division of General Technology Center Co., Ltd.), cleavage type, hydrogen abstraction type, ionic Although roughly classified into reaction types, those belonging to any of these types can be used.

Examples of the above reaction initiator include benzyl dimethyl ketal, 1-hydroxycyclohexyl phenyl ketone, 2-methyl-1- [4- (methylthio)
Phenyl] -2-monforinopropanone-1, 2-hydroxy-2-methyl-1-phenylpropan-1-one, 2-benzyl-2-dimethylamino-1- (4-morpholinophenyl) -butanone -1,1- [4- (2
-Hydroxyethoxy) -phenyl] -2-hydroxy-2-methyl-1-propan-1-one, bis (cyclopentadienyl) -bis (2,6-difluoro-3 (pyr-1-yl) phenyl) There are titanium, bisacylphosphon oxide, 2,4,6-trimethylbenzoyldiphenylphosphine oxide, and benzoin alkyl ether.

Subsequently, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, benzoin isobutyl ether, 1- (4-isopropylphenyl) -2-hydroxy-2-methylpropan-1-one, P-tert-butyltrichloro There are acetophenone, P-tert-butyldichloroacetophenone, benzyl, benzoin, acetophenone and benzophenone.

Subsequently, 1-phenyl-1,2-propanedione-2- (O-ethoxycarbonyl) oxime, 2
-Chlorothioxanthone, 2-methylthioxanthone,
Dibenzosuberone, 2,4-diethylthioxanthone,
2,4-diisopropylthioxanthone, 2,4-dimethylthioxanthone, 4,4′-dichlorobenzophenone, 4,4′-bisdimethylaminobenzophenone,
4,4′-bisdiethylaminobenzophenone, 3,
There are 3 ′, 4,4′-tetra (t-butylperoxycarbonyl) benzophenone, benzalacetone, biacetyl, α, α-dichloro-4-phenoxyacetophenone and 2-ethylanthraquinone.

Subsequently, n-butyl benzoin ether,
Isobutylbenzoin ether, tetramethylthiuram sulfide, azobisisobutylnitrile, benzoyl peroxide, 3,3-dimethyl-4-methoxybenzophenone, methylbenzoylformate, 2,2-
Diethoxyacetophenone, acyloxime ester, chlorinated acetophenone, hydroxyacetophenone, acylphosphine oxide, isobutylthioxanthone,
4-N, N'-dimethylacetophenone, acetophenone diethyl ketal, 4'-isopropyl-2-hydroxy-2-methylpropiophenone.

Subsequently, methyl phenylglyoxylate,
Methyl O-benzoylbenzoate, methyl P-dimethylaminobenzoate, 2,2'-bis (O-chlorophenyl)
-4,5,4 ′, 5′-tetraphenyl-1,2′-biimidazole, 10-butyl-2-chloroacridone,
Camphorquinone, 3-ketocoumarin, anthraquinone, α-naphthyl, acenaphthene, P, P′-dimethoxybenzyl, P, P′-dichlorobenzyl, 2,6-dimethylbenzoyldiphenylphosphine oxide, benzoyldiethoxyphosphine oxide, α -Chloranthraquinone, 2-tert-butylanthraquinone,
Bis (2,6-dimethoxybenzoyl) -2,4,4-
And trimethyl-pentylphosphine oxide.
Any of these can be used alone or in combination of two or more.

The curing agent is not particularly limited as long as it can be used together with the above-mentioned reaction compound and reaction initiator. 1 Toluene diisocyanate (hereinafter referred to as TDI), and trimethylolpropane (hereinafter referred to as TM)
P) and an isocyanurate form (hereinafter referred to as IC). (2) Trimmer consisting of hexamethylene diisocyanate (hereinafter referred to as HDI), HDI with TMP added, IC, and burette. 3 Triphenylmethane diisocyanate (hereinafter referred to as MDI), a product obtained by adding TMP to MDI, and a trimer comprising IC. 4 xylene diisocyanate (hereinafter referred to as XDI),
A trimmer consisting of XDI with TMP added and an IC. 5 Trimmer comprising naphthalene diisocyanate (hereinafter referred to as NDI), NDI with TMP added, and IC. 6 A trimmer comprising isophorone diisocyanate (hereinafter referred to as PDI), a product obtained by adding TMP to PDI, and an IC.

Next, as in the third aspect of the present invention, the water-soluble resin coating film provided on the adhesive surface of the composite film preferably contains a reactive compound having a vinyl group and a reaction initiator. . The water-soluble resin coating has a property of being cured by irradiation with light or / and an electron beam, for example. Thereby, the effect of the present invention can be more effectively exhibited.

Examples of the reactive compound having a vinyl group include, in addition to the reactive compound having a vinyl group and a functional group, monofunctional monomers such as (meth) acrylic acid and (meth) acrylic acid. Methyl, (meth)
Ethyl acrylate, butyl (meth) acrylate, hexyl acrylate, 2-ethylhexyl (meth) acrylate, isooctyl (meth) acrylate, 2-hydroxymethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, N, N ' -Dimethylaminoethyl (meth) acrylate, N, N'-diethylaminoethyl (meth) acrylate, glycidyl (meth)
There are acrylate, carbitol acrylate, isobornyl acrylate, styrene, acrylonitrile, vinyl acetate, vinyl toluene and the like.

As the bifunctional monomer, for example,
1,6-hexanediol (meth) acrylate, neopentyl glycol di (meth) acrylate, ethylene glycol di (meth) acrylate, polyethylene glycol di (meth) acrylate, polypropylene glycol di (meth) acrylate, butylene glycol di (meth) There are acrylate, pentaeristol diacrylate, 1,4-butanediol diacrylate and the like.

Examples of the polyfunctional monomer include, for example, trimethylolpropane tri (meth) acrylate, pentaerythritol triacrylate, dipentaerythritol hexaacrylate, tetramethylol methanetetraacrylate, N, N, N ′, N′-tetrakis ( (β-hydroxyethyl) ethyldiamine acrylate and the like. Further, as the allyl-based monomer, for example, diallyl phthalate, diallyl isophthalate,
And diallyl adipate. Any of these can be used alone or in combination of two or more.

As the above-mentioned reaction initiator in the third aspect, those similar to the reaction initiator in the second aspect can be used.

Next, as in the invention of claim 4, the water-soluble resin coating film provided on the contact surface of the composite film is preferably a water-soluble adhesive. The water-soluble resin coating film, which has been brought into a molten state or a gel state by water, is cured by the influence of the resin coating film that is in close contact with the water-soluble resin coating film. Thereby, the effect of the present invention can be more effectively exhibited.

The water-soluble adhesive may be any water-soluble adhesive having adhesive properties commonly used as paints, adhesives, pressure-sensitive adhesives, etc., for example, alkyd resins, acrylic resins, epoxy resins, urethane resins. , Polyvinyl alcohol, acetalized polyvinyl alcohol, urethanized polyvinyl alcohol, polyacrylic acid (salt), polyacrylamide, polyvinyl methyl ether, polyvinyl pyrrolidone, polyethylene oxide, polypropylene oxide, carboxymethyl cellulose,
Examples include methylcellulose, ethylcellulose, hydroxymethylcellulose, alginic acid, acetylated starch, hydroxyethylated starch, dialdehyde starch, dextrin, glue, gelatin, casein and the like.

Next, the water-soluble resin coating film is preferably a colored layer and / or a printed layer. Thereby, various colors and / or patterns can be imparted to the resin coating film, and the design of the resin coating film can be improved.

The coloring layer is obtained by uniformly dispersing a coloring agent such as a pigment or a dye in the water-soluble resin coating film. Any coloring agent may be used as long as it is generally used in paints. Examples of the pigment include titanium oxide, iron oxide, carbon black, Sinian pigment, and quinacridone pigment. Examples of the dye include an azo dye, an anthraquinone dye, an indigoid dye, and a stilbenzene dye. Further, metal powder such as aluminum flake, nickel powder, gold powder and silver powder can be used as the coloring agent. The printing layer is a layer provided with a color and / or pattern by a general printing method.

Next, it is preferable that at least one layer of a water-insoluble resin coating is interposed between the base sheet and the water-soluble resin coating.

Here, the water-insoluble resin coating refers to a resin coating which has already been cured to become water-insoluble or a resin coating which has been insoluble in water before being cured. By using such a water-insoluble resin coating film, the surface shape and thickness of the resin coating film formed on the adherend surface can be freely changed. As the water-insoluble resin coating film, a cured product of the same water-soluble resin coating film as described above can be used.

It is preferable that all of the resins forming the water-soluble resin coating and the water-insoluble resin coating have transparency to visible light. Thereby, light or / and an electron beam reach the water-soluble resin coating film provided on the surface in close contact with the adherend, and the water-soluble resin coating film can be cured.

The water-insoluble resin coating may be provided as a single layer between the base sheet and the water-soluble resin coating, or a plurality of layers may be laminated.

The water-insoluble resin coating is preferably a colored layer and / or a printed layer. Thereby, the same effect as when the water-soluble resin coating film is a colored layer and / or a printed layer can be expected. As the coloring layer and the printing layer,
As described above, the same layer as used when the water-soluble resin coating film is a colored layer and / or a printed layer can be used.

Next, as in the sixth aspect of the present invention, it is preferable that the surface of the water-soluble resin coating film of the composite film is previously coated with a release sheet. Thereby, water adsorption to the water-soluble resin coating film during storage and transportation of the composite film can be prevented, and stickiness on the surface of the composite film can be prevented. Therefore, handling of the composite film becomes easy.

The release sheet preferably has the property of protecting the water-soluble resin coating film of the composite film from water. This can prevent the water-soluble resin coating film from absorbing water during the handling of the composite film and becoming an adhesive. The release sheet may or may not have transparency to light and / or electron beams. The release sheet is peeled off from the composite film before being brought into close contact with the surface of the adherend.

As the release sheet, for example, polystyrene, acrylic polymer, polycarbonate, polyvinyl chloride, polystyrene, polypropylene, alkylbenzenesulfonic acid, polyethylene terephthalate, P
EN, polyvinyl alcohol, cellulose acetate,
All resins usually used as a release sheet, such as cellulose acetate resin such as cellulose butyrate, surface-treated paper, etc. can be used. Further, the release sheet can be subjected to various surface treatments.

Next, a seventh aspect of the present invention is a composite film having a water-soluble resin coating film and a base sheet for fixing the water-soluble resin coating film and transmitting light and / or electron beams. Is prepared, and then water is applied to at least one of the surface of the water-soluble resin coating film and the surface of the adherend to which the water-soluble resin coating film is to be attached, and then the surface of the adherend is The composite film is placed in a state where the water-soluble resin coating faces each other, and then the surface of the composite film is irradiated with light or / and an electron beam from the direction of the base sheet to form the water-soluble resin coating. Along with curing at least one of the water-soluble resin coatings, the water-soluble resin coating facing the adherend is cured and fixed to the adherend and water-insolubilized to form a resin coating, and thereafter, Removing the base sheet from the resin coating A method for producing a surface coating material, wherein the door.

In the invention of claim 7, a resin coating film is formed on the surface of the adherend using the same composite film as in the invention of claim 1. Therefore, similarly to the first aspect, it is possible to form surface coatings having various surface states. Further, since water is used instead of the organic solvent, the surface coating can be formed safely and easily.

Next, as in the invention of claim 8, the light applied to the surface of the base sheet is preferably infrared light, visible light, ultraviolet light, or sunlight. This makes it possible to easily cure the resin coating film that has been dissolved or gelled by water.

The light source of the infrared light may be, for example, 0.1 mm
In the wavelength range of 75 μm to 400 μm, any light source may be used as long as it generates an appropriate electromagnetic wave according to the curing of the water-soluble resin coating film. An infrared heater or the like can be used as a light source.

As a light source of the visible light, a halogen lamp for illumination having a high color temperature, a xenon lamp, a metal halide lamp dedicated to a visible region, or the like can be used. Among the visible light wavelength regions, visible light in a wavelength region of 380 to 520 nm is particularly preferable. Thereby, the resin coating film can be cured in a favorable state.

As the ultraviolet light source, a high-pressure mercury lamp,
There is a metal halide lamp or the like, and the illumination energy on the illumination surface is 5 to 500 mW / cm ² , preferably 50 to 20 mW / cm ² .
0 mW / cm ² .

The electron beam is emitted from various electron beam accelerators, and usually has an acceleration energy of 20 to 1000K.
eV, preferably 100 to 500 KeV is used.

Next, it is preferable that the application amount of the water is 1.5 to 10 g / m ² . 10
If it exceeds g / m ² , cracks may occur in the resin coating film. It is presumed that the cause is that water contained in the resin coating film evaporates little by little after the base sheet is removed and the resin coating film shrinks with time. Also,
When the composite film and the adherend are overlaid, the composite film easily moves on a so-called thin water film, and it may be difficult to cover the composite film at an accurate position.

Further, at this time, if the composite film is forcibly pressed against the adherend, the composite film may not be able to maintain smoothness and may be wavy. Further, when the substrate sheet is removed after irradiation with light or / and an electron beam, the resin coating of the composite film may not be peeled off from the substrate sheet and may remain attached to the substrate sheet. The cause of this is that, due to the large amount of water, the curing of the resin coating film is delayed, and the adhesion between the resin coating film and the adherend is not sufficiently exhibited.
It is presumed that this was because the adhesion did not become larger than the adhesion between the base sheet and the resin coating film.

On the other hand, if the amount of water is less than 1.5 g / m ² , bubbles may be trapped between the composite film and the adherend when they are overlapped. Immediately after the two are superimposed, all the water is absorbed by the resin coating of the composite film, and the composite film may adhere to the adherend in a very short time. Therefore, the composite film can hardly be moved thereafter, and it may be difficult to perform accurate positioning.

More preferably, the amount of the applied water is 1.5 to 6 g / m ² . 6g / m
If it exceeds ² , or if it is less than 1.5 g / m ² , the same problem as described above may occur.

Next, according to claim 11, the water contains
It is preferable that an organic solvent, a surfactant, and / or a water-soluble resin be added. Thereby, when water is applied to the composite film and / or the adherend, repelling of water can be prevented, and water can be applied thinly and uniformly. For this reason, a surface coating can be manufactured by applying a small amount of water.

The above organic solvent preferably has a boiling point of 30 to 160 ° C. Thereby, the above-mentioned effect due to the addition of the organic solvent can be more effectively exerted. Examples of such organic solvents include lower alkyl acetates such as methanol, ethanol, isopropyl alcohol, butanol, isobutanol, acetone, methyl cellosolve, ethyl cellosolve, butyl cellosolve, ethyl acetate, and butyl acetate, ethyl propionate, methyl isobutyl ketone, and cyclohexanone. , Β-ethoxyethyl acetate, methyl cellosolve acetate and the like can be used.

As the above-mentioned surfactant, nonionic surfactants, anionic surfactants, amphoteric surfactants, cationic surfactants and the like can be used. Examples of the nonionic surfactant include nonionic surfactants such as saponins, alkylene oxide derivatives, glycidol derivatives, fatty acid esters of polyhydric alcohols, alkyl esters of sugars, urethanes, and ethers. .

The saponins include, for example, saponins bonded to steroids. Examples of the alkylene oxide derivative include, for example, polyethylene glycol, polyethylene / polypropylene glycol condensate,
Examples include polyethylene glycol alkyl or alkyl aryl ethers, polyethylene glycol esters, polyethylene glycol sorbitan esters, polyalkylene glycol alkylamines or amides, and polyethylene oxide adducts of silicone. Examples of the glycidol derivative include alkenyl succinic acid polyglyceride and alkylphenol polyglyceride.

Examples of the above anionic surfactants include triterpenoid saponins, alkyl carboxylate, alkyl sulfonate, alkyl benzene sulfonate, alkyl naphthalene sulfonate, alkyl sulfates, alkyl phosphates, and N phosphates. A carboxy group, a sulfo group, a phospho group, such as -acyl-N-alkyltauric acid, sulfosuccinates, sulfoalkylpolyoxyethylene alkylphenyl ethers, polyoxyethylene alkyl phosphates, and the like.
There are anionic surfactants containing acidic groups such as sulfate groups and phosphate groups.

Examples of the amphoteric surfactant include amino acids, aminoalkylsulfonic acids, aminoalkylsulfuric acid or phosphoric acid esters, alkylbetaines, amineimides, and amine oxides.

Examples of the cationic surfactant include alkylamine salts, aliphatic or aromatic quaternary ammonium salts, heterocyclic quaternary ammonium salts such as pyridinium and imidazolium, and aliphatic or heterocyclic rings. Including phosphonium or sulfonium salts.

As the water-soluble resin, paints, adhesives,
Any water-soluble resin having adhesive properties usually used as an adhesive or the like may be used, for example, alkyd resin, acrylic resin, epoxy resin, urethane resin, polyvinyl alcohol, acetalized polyvinyl alcohol, urethanized polyvinyl alcohol, polyacrylic acid (Salt), polyacrylamide, polyvinyl methyl ether, polyvinyl pyrrolidone, polyethylene oxide, polypropylene oxide, carboxymethyl cellulose, methyl cellulose, ethyl cellulose, hydroxymethyl cellulose, alginic acid, acetylated starch, hydroxyethylated starch, dialdehyde starch, dextrin ,
There are glue, gelatin, casein and the like.

[0078]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 FIG. 1 shows a surface covering according to an embodiment of the present invention.
This will be described with reference to FIG. As shown in FIG. 1, the surface coating body of this example is one in which a resin coating film 101 is formed on the surface of the adherend 3. The resin coating 101 is a water-soluble resin coating 10
Is adhered to the adherend with water, and then cured by irradiation with ultraviolet light to make it water-insoluble and fixed to the surface of the adherend 3.

Next, a method for producing the above surface coating will be described. First, as shown in FIG. 2, a water-soluble resin was applied to the base sheet 5 using an applicator to form a water-soluble resin coating film 10 having a wet thickness of 100 μm.

The water-soluble resin coating film comprises a water-soluble resin containing a reactive compound having a vinyl group and a functional group, a reaction initiator, and a curing agent. As the reactive compound,
Aronix TO-1343 (manufactured by Toagosei Co., Ltd.) and Aronix M5700 (manufactured by Toagosei Co., Ltd.) were used. Darocur 1173 (manufactured by Nippon Ciba Geigy Co., Ltd.) was used as the reaction initiator. Coronate L (manufactured by Nippon Polyurethane Industry Co., Ltd.) was used as a curing agent.
The resin concentration in Coronate L is 75% by weight, the balance being ethyl acetate.

The mixing ratio of the water-soluble resin is
70 parts by weight of -1343 and 3 of Aronix M5700
0 parts by weight, 2 parts by weight of Darocure 1173, and 10 parts by weight of Coronate L. The water-soluble resin was used after being diluted with 10 parts by weight of butyl acetate with respect to 112 parts by weight of the water-soluble resin coating film. As the base sheet, a polyethylene terephthalate film (Lumirror T type: manufactured by Toray Industries, Inc.) having a thickness of 50 μm was used.

Next, the water-soluble resin coating film was left to dry under a condition of 30 ° C. to have a dry thickness of 90 μm. As a result, as shown in FIG. 2, a composite film 7 in which the water-soluble resin coating film 10 composed of one layer was fixed to the base sheet 5 was obtained.

Next, as shown in FIG. 3, 30 g / m ^{2 of} water 6 was applied to the veneer surface 30 of the oak veneer as the adherend 3. Next, as shown in FIG. 4, the composite film 7 was immediately placed on the veneer surface 30. Furthermore, the composite film was pressed against the adherend with a rubber roller (No. 4: manufactured by Otsuka Brush Co., Ltd.). Thereby, the contact surface 100 of the water-soluble resin coating film 10 and the veneer surface 30 were brought into close contact with each other via the water 6. At this time, the water-soluble resin coating film was swollen by water and turned into a gel state.

Next, the film was allowed to stand at 30 ° C. for 30 minutes to dry the water-soluble resin coating film 10. Next, using a high-pressure mercury lamp (H05-L21: manufactured by Eye Graphics Co., Ltd.) as an ultraviolet light source, the surface of the base sheet 5 of the composite film 7 was irradiated with ultraviolet light 4 having a light amount of 4000 mJ. Thereby, the ultraviolet light 4 passed through the base sheet 5 and reached the water-soluble resin coating film 10, thereby curing the water-soluble resin coating film 10 and insolubilizing the water, thereby forming the resin coating film 101. Thereafter, the base sheet 5 was peeled off from the resin coating film 101 to obtain a mirror-finished surface coating.

As shown in FIG. 1, the surface of the obtained surface coating 9 had a mirror surface 19 and a beautiful luster. Further, no defects such as air bubbles and wrinkle marks were observed in the resin coating film 101. In addition, the adhesion strength of the resin coating film 101 was not observed at all in the 1 mm cross-cut test,
It was found to have very strong adhesion.

Embodiment 2 As shown in FIG. 6, the surface coating of this example has a resin coating film 102 having an uneven surface 18 formed on the surface of the adherend 3. That is, first, a water-soluble resin was applied to the base sheet using an applicator to form a water-soluble resin coating film having a wet thickness of 30 μm. As the water-soluble resin, 30 parts by weight of Kayarad RM1001 (manufactured by Nippon Kayaku Co., Ltd.) as a reactive compound having a vinyl group, and 2 parts by weight of Darocure 1173 (manufactured by Nippon Ciba Geigy) as a reaction initiator. ,
A mixture of 40 parts by weight of Arolon 460 (manufactured by Nippon Shokubai Co., Ltd.) as a water-soluble acrylic resin and 30 parts by weight of isopropyl alcohol as a diluting solvent. Note that Arolon 460 contains 50% by weight of resin, and the remainder is ethanol, isopropanol and water.

Next, the water-soluble resin coating film was left to dry under the condition of 30 ° C. to a dry thickness of 15 μm. As a result, a composite film obtained by fixing the water-soluble resin coating film consisting of one layer to the base sheet was obtained.

Thereafter, a surface covering was produced using the composite film in the same manner as in Example 1. As shown in FIG. 6, the surface of the obtained surface coating 9 had a natural wood-like aesthetic appearance and tactile characteristic peculiar to the open pore finish. Also, no bubbles or wrinkle marks were observed at all, and the adhesion strength of the resin coating film was found to be extremely strong without any peeling off in a 1 mm grid test. In addition, a part of the water-soluble resin coating film 11 remains on the surface of the base sheet 5 peeled from the resin coating film, and the resin having substantially the same shape and size as the conduit existing on the veneer surface 30 of the adherend 3. And many irregularities 189 consisting of

Embodiment 3 In this embodiment, as shown in FIG. 7, after water is applied to the surface of the adherend 3, two first and second water-soluble resin coatings 12, 13 are mounted. And cured by irradiation with ultraviolet light to form two resin coatings 102 and 103.

Next, the method for producing the surface coating of this example will be described in detail. First, as shown in FIG. 8, a water-soluble resin was applied to the base sheet 5 using an applicator to form a first water-soluble resin coating film 12 having a wet thickness of 30 μm. The water-soluble resin is Aronix TO-1343 (Toagosei Co., Ltd.) as a reactive compound having a vinyl group and a functional group.
80 parts by weight), 20 parts by weight of Aronix M5700 (manufactured by Toagosei Co., Ltd.) as a reactive compound having a vinyl group and a functional group, and Darocure 1173 (manufactured by Nippon Ciba Geigy Co., Ltd.) as a reaction initiator. ) Is 2 parts by weight,
10 parts by weight of butyl acetate was mixed as a diluting solvent. It has the property of being cured by irradiation with ultraviolet light. As the substrate sheet, a 50 μm polyethylene terephthalate film (Lumilar T type: manufactured by Toray Industries, Inc.) was used.

Next, the first water-soluble resin coating film 12 was heated at 30 ° C.
And dried under the above conditions to a dry thickness of 27 μm. As a result, the first water-soluble resin coating film 12 was fixed to the base sheet 5.

Next, a water-soluble resin is further applied to the surface of the first water-soluble resin coating film 12 using an applicator.
A second water-soluble resin coating film 13 having a wet thickness of 20 μm was formed. This water-soluble resin is polyvinyl alcohol (Gohsenol NH-18: manufactured by Nippon Synthetic Chemical Industry Co., Ltd.).
It is a water-soluble adhesive composed of a weight percent aqueous solution. It has the property of being cured by drying and removing water once absorbed, regardless of light or / and electron beam irradiation.

Next, the second water-soluble resin coating film was left to dry at 30 ° C. and dried to a dry thickness of 2 μm. Thus, the second water-soluble resin coating 13 was fixed on the surface of the first water-soluble resin coating 12. As described above, the base sheet 5
To obtain a composite film 7 in which the first and second water-soluble resin coatings 12, 13 are fixed on the surface of the composite film 7.

Then, water is applied to the surface of the adherend in the same manner as in the first embodiment, the composite film 7 is placed thereon, pressed with a rubber roller, and then irradiated with ultraviolet light to form a first water-soluble material. The resin coating was cured. Further, the second water-soluble resin coating film was dried and hardened. Thereafter, the substrate sheet was peeled off from the cured first and second water-soluble resin coating films.
Thereby, the surface coating of this example was obtained.

As shown in FIG. 7, the obtained surface coating 9 had a gentle uneven surface 17 and had a texture unique to semi-open pore finish. That is, the surface of the surface covering body 91 has a natural wood-like appearance and tactile sensation,
It also had a beautiful mirror finish. Also, no bubbles or wrinkle marks are observed at all, and the adhesion strength of the resin coating is
No peeling was observed in the 1 mm cross-cut test, which was extremely strong.

Embodiment 4 As shown in FIG. 9, the surface coating of this embodiment
Was formed on the surface of the adherend 3 coated with.

Next, the method for producing the surface coating of this example will be described in detail. First, a water-soluble resin was applied to a base sheet using an applicator to form a water-soluble resin coating film having a wet thickness of 50 μm. The water-soluble resin is Aronix TO-1 as a reactive compound having a vinyl group and a functional group.
343 (manufactured by Toagosei Co., Ltd.), 30 parts by weight of Aronix M5700 (manufactured by Toagosei Co., Ltd.) as a reactive compound having a vinyl group and a functional group, and Darocure 1173 as a reaction initiator. 2 parts by weight (manufactured by Nippon Ciba Geigy Co., Ltd.) and Coronate L as a curing agent
(Manufactured by Nippon Polyurethane Industry Co., Ltd.), a mixture of 10 parts by weight of butyl acetate as a diluting solvent. As the base sheet, a polyethylene terephthalate film having a thickness of 50 μm (Lumilar T type: manufactured by Toray Industries, Inc.)
Was used.

Next, the water-soluble resin coating film was left standing at 30 ° C. and dried to have a dry thickness of 45 μm. Thus, a composite film in which one layer of the water-soluble resin coating film was fixed to the base sheet was obtained.

Next, as shown in FIG. 10, urethane clear (UC-11 floor Ulet, Gengen Chemical Industry Co., Ltd.) is applied to the veneer surface 30 of the oak veneer as the adherend 3.
Was coated to form a coating film 31. Next, the surface of this coating film was coated with # 400 sandpaper (CC400C).
w: manufactured by Kovacs Corporation). Next, after applying 30 g / m ^{2 of} water to the polished surface 310, the composite film is immediately placed on the veneer surface, and further, a rubber roller (No. 4: Otsuka Brush Manufacture (No. 4: Co., Ltd.). Thus, the contact surface 100 of the water-soluble resin coating 14 and the polished surface 310 of the coating 31 were brought into close contact with each other via water.

Next, the film was left at 30 ° C. for 30 minutes to dry the water-soluble resin coating film. Then, a high-pressure mercury lamp (H05-L21: manufactured by Eye Graphics Co., Ltd.) was used as a light source of ultraviolet light, and ultraviolet light having a light amount of 4000 mJ was irradiated. As a result, the ultraviolet light transmitted through the base sheet and reached the water-soluble resin coating film, thereby curing the water-soluble resin coating film and insolubilizing the water, thereby forming a resin coating film. Thereafter, the base sheet was peeled off from the resin coating film to obtain a mirror-finished surface coating.

As shown in FIG. 9, the surface of the obtained surface coating 9 was a mirror surface 19 and had a beautiful luster, and no bubbles or wrinkle marks were observed. In addition, the adhesion strength of the resin coating film 104 was found to be extremely strong without any peeling off in a 1 mm grid test.

Embodiment 5 In this embodiment, a water-soluble resin coating film was cured by irradiation with visible light to form a resin coating film.

Next, the method for producing the surface coating of this example will be described in detail. First, a water-soluble resin was applied to a base sheet using an applicator to form a water-soluble resin coating film having a wet thickness of 50 μm. The water-soluble resin is a beam set AQ-7 as a reactive compound having a vinyl group and a functional group.
100 parts by weight (manufactured by Arakawa Chemical Industry Co., Ltd.) and Irgacure 369 (Nippon Ciba Geigy Co., Ltd.) as a reaction initiator
5 parts by weight), 10 parts by weight of Coronate L (manufactured by Nippon Polyurethane Industry Co., Ltd.) as a curing agent, and 10 parts by weight of butyl acetate as a diluting solvent. As the base sheet, a polyethylene terephthalate film (Lumirror T type: manufactured by Toray Industries, Inc.) having a thickness of 50 μm was used.

Next, the water-soluble resin coating film was left standing at 30 ° C. and dried to have a dry thickness of 45 μm. Thus, a composite film in which one layer of the water-soluble resin coating film was fixed to the base sheet was obtained.

Next, after applying 30 g / m ^{2 of} water to the veneer surface of the oak veneer serving as the adherend, the composite film was immediately placed on the veneer surface, and the composite film was further placed on the veneer surface from above the composite film. , Rubber roller (No. 4: Otsuka Brush Manufacturing Co., Ltd.)
Manufactured). Thereby, the contact surface of the water-soluble resin coating film and the veneer surface were brought into close contact with each other via water.

Next, the film was left at 30 ° C. for 30 minutes to dry the water-soluble resin coating film. Next, the substrate sheet surface of the composite film was placed vertically at a position separated from the light source of visible light by 5 cm, and irradiated with visible light for 5 minutes to cure the water-soluble resin coating film. As a visible light source, a fluorescent lamp (Mitsubishi Lupica A27W: manufactured by Mitsubishi Electric Corporation) was used.
Thereafter, the substrate sheet was peeled off from the resin coating film. Thus, a semi-open pore-finished surface coating was obtained.

The obtained surface coating had a slightly uneven surface, and had a texture peculiar to the semi-open pore finish. That is, the surface of the surface coating 91 had a natural wood-like aesthetic appearance and tactile sensation, and also had a beautiful mirror-finished gloss. Also, no bubbles or wrinkle marks were observed. Also, the adhesion strength of the resin coating film was extremely strong without any peeling off in a 1 mm cross-cut test.

Embodiment 6 In this embodiment, a water-soluble resin coating film was cured by irradiation with sunlight to form a resin coating film.

Next, the method for producing the surface coating of this example will be described in detail. First, a water-soluble resin was applied to a base sheet using an applicator to form a water-soluble resin coating film having a wet thickness of 100 μm. The water-soluble resin is Aronix TO- as a reactive compound having a vinyl group and a functional group.
1343 (manufactured by Toagosei Co., Ltd.), 30 parts by weight of Aronix M5700 (manufactured by Toagosei Co., Ltd.) as a reactive compound having a vinyl group and a functional group, and Irgacure 369 as a reaction initiator. 5 parts by weight (manufactured by Nippon Ciba Geigy) and Coronate L as a curing agent
10 parts by weight (manufactured by Nippon Polyurethane Industry Co., Ltd.) and 10 parts by weight of butyl acetate as a diluting solvent. As the base sheet, a polyethylene terephthalate film (Lumirror T type: manufactured by Toray Industries, Inc.) having a thickness of 50 μm was used.

Next, the water-soluble resin coating film was left standing at 30 ° C. and dried to have a dry thickness of 90 μm. Thus, a composite film in which one layer of the water-soluble resin coating film was fixed to the base sheet was obtained.

Then, after applying 30 g / m ^{2 of} water to the veneer surface of the oak veneer serving as the adherend, the composite film was immediately placed on the veneer surface, and the composite film was placed on the veneer from above. , Rubber roller (No. 4: Otsuka Brush Manufacturing Co., Ltd.)
Manufactured). Thereby, the contact surface of the water-soluble resin coating film and the veneer surface were brought into close contact with each other via water.

Next, the film was left at 30 ° C. for 30 minutes to dry the water-soluble resin coating film. Next, the substrate sheet surface of the composite film is placed perpendicular to sunlight,
The water-soluble resin coating was cured by irradiating sunlight for 2 minutes. Thereafter, the substrate sheet was peeled off from the resin coating film to obtain a semi-open finish surface coating close to a mirror surface.

The surface of the obtained surface coating had not only the aesthetic appearance and tactile sensation of natural wood, but also a beautiful luster close to a mirror finish. Also, no bubbles or wrinkle marks were observed. Also, the adhesion strength of the resin coating film was extremely strong without any peeling off in a 1 mm cross-cut test.

Embodiment 7 In this embodiment, a resin coating film composed of a colored layer was formed from a water-soluble resin coating film to which a coloring agent was added.

Next, a method for producing the surface coating of this example will be described in detail. First, a water-soluble resin was applied to a base sheet using an applicator to form a water-soluble resin coating film having a wet thickness of 50 μm. The water-soluble resin is Aronix TO-1 as a reactive compound having a vinyl group and a functional group.
343 (manufactured by Toagosei Co., Ltd.), 30 parts by weight of Aronix M5700 (manufactured by Toagosei Co., Ltd.) as a reactive compound having a vinyl group and a functional group, and lucilin TPO as a reaction initiator (BFSF Japan Co., Ltd.) 3 parts by weight, Coronate L as a curing agent
10 parts by weight (manufactured by Nippon Polyurethane Industry Co., Ltd.), 1 part by weight of TR651 BROWN N as a colorant (manufactured by Toyo Ink Mfg. Co., Ltd.), and 10 parts by weight of butyl acetate as a diluting solvent. As the base sheet, a polyethylene terephthalate film (Lumirror T type: manufactured by Toray Industries, Inc.) having a thickness of 50 μm was used.

Next, the water-soluble resin coating film was left standing at 30 ° C. and dried to have a dry thickness of 45 μm. As a result, a composite film in which one layer of the water-soluble resin coating film containing the colorant was fixed to the base sheet was obtained.

Thereafter, a surface covering was produced by using the above composite film in the same manner as in Example 1. The surface of the obtained surface coating had a gentle uneven surface 7, and had a texture unique to a colored semi-open pore finish. In other words, the surface of the surface covering 91 had a natural wood-like aesthetic appearance and tactile sensation, and also had a beautiful mirror-finished colored luster. No defects such as bubbles and wrinkle marks were observed. Also, the adhesion strength of the resin coating film,
No peeling was observed in the 1 mm cross-cut test, and it was found to have extremely strong adhesive strength.

Embodiment 8 In this embodiment, the coating state of the resin coating film was observed while changing the amount of water applied to the surface of the adherend. The surface of the adherend was coated with a resin coating film as follows. First, a polyethylene terephthalate film (Lumilar T type: manufactured by Toray Industries, Inc.) having a thickness of 50 μm was prepared as a base sheet. A water-soluble resin was applied to one surface of the base sheet using an applicator to form a water-soluble resin coating film having a wet thickness of 30 μm.

The composition of the water-soluble resin is composed of 100 parts by weight of two kinds of reactive compounds having a vinyl group and a functional group, 3 parts by weight of a reaction initiator, 10 parts by weight of a curing agent, and 10 parts by weight of a diluting solvent. The reactive compound is Aronix TO-
1343 (manufactured by Toagosei Co., Ltd.) and 70% by weight of Karayad RM1001 (manufactured by Nippon Kayaku Co., Ltd.). Darocur 1173 (manufactured by Nippon Ciba Geigy) was used as the reaction initiator. As the curing agent, Coronate L (manufactured by Nippon Polyurethane Industry Co., Ltd.) was used, which consisted of 75% by weight of resin and 25% by weight of ethyl acetate ethyl acetate. As a diluting solvent, butyl acetate was used.

Next, this water-soluble resin coating film was left to stand under a condition of 30 ° C. and dried to obtain a composite film composed of a single water-soluble resin coating film having a dry film thickness of 26 μm. next,
A urethane tank (UC
-11 Floor Ulet: Gengen Chemical Industry Co., Ltd.) was applied, and the surface of the coating film was further polished using # 400 sand paper (CC400Cw: manufactured by Kovacs Co., Ltd.). Thus, an adherend having a coating film on the surface was obtained.
Next, as shown in Table 1, water was applied to the polished surface of the coating film for 1 hour.
g / m ² ~18g / m ² was coated, immediately placed carefully so as not to involve air bubbles the composite film was sealed with tape four sides of the surrounding for further preventing scattering of water.

Thereafter, a high-pressure mercury lamp (H0
5-L21: manufactured by Eye Graphics Co., Ltd.)
Irradiation with a light amount of 4000 mJ was performed to cure the water-soluble resin coating film. Next, the base sheet was peeled off. As a result, a surface-coated body obtained by coating the surface of the adherend with the resin coating film was obtained. The surface coatings were Samples 1 to 5 for each application amount of water.

The coating state of the resin coating on the obtained surface coating was observed. As shown in Table 1, the observation items are entrainment of bubbles between the adherend and the resin coating, cracking of the resin coating, surface smoothness of the resin coating, and positioning of the resin coating. Poor, normal, good, and best were evaluated on a four-point scale, and indicated by “x”, “△”, “○”, and “◎”, respectively.

As can be seen from Table 1, the amount of water applied was 6
In the case of g / m ² (Sample 3), the resin coating film had a beautiful mirror-like gloss, and no bubbles or wrinkles were observed. Water application amount of 1.5 g / m ² , 10 g / m ²
In the case of (Samples 2 and 4), a similarly beautiful mirror-finished resin coating film was formed.

On the other hand, when the amount of water applied is 1 g / m ² (Sample 1), bubbles are always involved, making it impossible to form a uniform resin coating film. It was difficult. When the amount of water applied is 18 g / m ² (sample 5), not only is the positioning of the composite film extremely difficult, but also the resin coating is wavy and cracks are formed on the coating surface, and a uniform resin coating is formed. Could not be formed.

[0125]

[Table 1]

[0126]

According to the present invention, there is provided a composite film capable of imparting excellent coating film appearance and coating film properties to the surface of an adherend from mirror finishing to high-grade finishing such as open pore finishing, and And a method for producing a surface coating using the same.

[Brief description of the drawings]

FIG. 1 is a cross-sectional explanatory view of a surface covering according to a first embodiment.

FIG. 2 is an explanatory cross-sectional view of the composite film in the first embodiment.

FIG. 3 is a cross-sectional explanatory view of a base sheet coated with water in the first embodiment.

FIG. 4 is an explanatory view showing a method of bringing a composite film into close contact with the surface of a base material sheet according to the first embodiment.

FIG. 5 is an explanatory diagram showing a method for curing a water-soluble resin coating film in the first embodiment.

FIG. 6 is an explanatory diagram of a surface covering body according to a second embodiment.

FIG. 7 is an explanatory cross-sectional view of a surface covering according to a third embodiment.

FIG. 8 is an explanatory sectional view of a composite film according to a third embodiment.

FIG. 9 is an explanatory cross-sectional view of a surface covering body according to a fourth embodiment.

FIG. 10 is an explanatory diagram showing a method for manufacturing a surface covering body in a fourth embodiment.

[Explanation of symbols]

 10-14: water-soluble resin coating, 100: adhesion surface, 101-104: resin coating, 17, 18: uneven surface, 19: mirror surface, 3: adhesion Body, 30 ... veneer surface, 31: coating film, 5: base sheet, 6: water, 7: composite film, 9: surface coating,

Claims (11)

[Claims] 1. A composite film for forming a resin coating film on a surface of an adherend, wherein the composite film comprises a water-soluble resin coating film provided on at least a surface which is to be in close contact with the adherend. A base sheet for fixing the water-soluble resin coating film and transmitting light and / or electron beams, wherein the water-soluble resin coating film is provided on at least a surface which is to be in close contact with an adherend. Has the property of being a water-insoluble resin coating that is hardened and fixed to the adherend while water is interposed between the adherend and adhered to the adherend. A composite film, wherein at least one of the water-soluble resin coating films has a property of being cured by irradiation with light or / and an electron beam. 2. The method according to claim 1, wherein the water-soluble resin coating film provided on the adhesive surface of the composite film contains a reactive compound having a vinyl group and a functional group, a reaction initiator, and a curing agent. A composite film characterized by the above. 3. The composite film according to claim 1, wherein the water-soluble resin coating film provided on the adhesive surface of the composite film contains a reactive compound having a vinyl group and a reaction initiator. 4. The composite film according to claim 1, wherein the water-soluble resin coating film provided on the contact surface of the composite film is a water-soluble adhesive. 5. The method according to claim 1, wherein:
A composite film, wherein at least one layer of a water-insoluble resin coating is interposed between the base sheet and the water-soluble resin coating. 6. The method according to claim 1, wherein
A composite film, wherein the surface of the water-soluble resin coating film of the composite film is previously coated with a release sheet. 7. A composite film comprising a water-soluble resin coating film and a base sheet for fixing the water-soluble resin coating film and transmitting light and / or electron beam is prepared. Water is applied to at least one of the surface of the water-soluble resin coating film and the surface of the adherend to which the water-soluble resin coating film is to be applied, and then the water-soluble resin coating film faces the surface of the adherend Then, the composite film is placed in a state where it is placed, and then the surface of the composite film is irradiated with light or / and / or an electron beam from the direction of the base sheet to at least one of the water-soluble resin coatings. Along with curing the film, the water-soluble resin coating facing the adherend is cured and fixed to the adherend and water-insolubilized to form a resin coating. Surface characterized by removing the sheet Method of manufacturing a covering body. 8. The method according to claim 7, wherein the light applied to the surface of the base sheet is infrared light, visible light, ultraviolet light, or sunlight. 9. The method according to claim 7, wherein the amount of the applied water is 1.5 to 10 g / m ² . 10. The method according to claim 7, wherein the applied amount of the water is 1.5 to 6 g / m ² . 11. The method for producing a surface coating according to claim 7, wherein an organic solvent, a surfactant, and / or a water-soluble resin are added to the water. .