JPH07214888A - Stereoscopic pattern coating plate and manufacture thereof - Google Patents

Abstract

PURPOSE:To finish a stereoscopic pattern as an external appearance having feel of nature and depth by slightly increasing a thickness of a plain gauze of a screen plate of a second screen printing of a stereoscopic pattern coating plate in which two types of screen printings are executed on a surface as compared with that of a plain gauze of a screen plate of a first screen printing. CONSTITUTION:A material which is used for a normal screen printing can be used as a board without limit, and includes platelike or sheetlike material of various plastics, wooden, ceramics, metal, fibrous, nonwoven fabric, etc. Paints which have viscosities of about 30-400 poise used heretofore for screen printing can be used as coloring paints. A thickness of a plain gauze of a screen plate used to form a second screen printing coating film 3 is increased 1.1 times as large as that of a plain gauze of a screen plate used to form a first screen printing coating film 2, and its upper limit may be of the degree in which the first screen plate coating film can be visible via the second screen plate coating film surface.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a three-dimensional pattern coated plate having a natural feeling and depth by a screen printing method and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, coated plates with a variety of patterns have been widely used to give an aesthetic appearance to interior materials and building materials. (A) Gravure printing or offset printing, (b)
The screen printing method and the method of (c) coating are known as typical methods.

The method (a) has a feature that a desired arbitrary pattern can be formed, and a pattern with a natural feeling and a depth can be obtained, but a three-dimensional pattern cannot be formed. Had. Further, the method (b) has a feature that it can form an arbitrary desired pattern and can form a three-dimensional pattern, but the pattern expression is as if a cut paper is pasted. There is a problem in that it has a cutout appearance and the pattern formed has an appearance that lacks natural feeling and depth. Further, the method (C) has a problem that a desired arbitrary pattern cannot be formed with good reproducibility.

As described above, the conventional method of applying a multicolored pattern has advantages and disadvantages.
In addition, there has been a strong demand in the market for a method for producing a natural and deep appearance. Also, screen printing is widely used because it has the advantage of being able to print on brittle materials compared to offset printing, etc., but offset printing and the like are used to obtain a natural and deep pattern with such materials. However, even in the field of using such materials, a printing method that gives a natural appearance and a deep appearance has been strongly desired.

[0005]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, and a method for producing a three-dimensional pattern coated plate for finishing a desired arbitrary three-dimensional pattern to have a natural appearance and a deep appearance, and a method for producing the same. It is intended to provide a printed three-dimensional pattern coated plate.

[0006]

That is, according to the present invention, a colored paint or an ink (hereinafter, both are simply referred to as "paint") is partially screen-printed on a surface of a substrate with a screen plate, and A method of forming a second screen-printed coating film by forming a screen-printed coating film and then screen-printing a colored coating material with a screen plate so as to simultaneously cover the substrate surface and the first screen-printed coating film,
The thickness of the gauze of the screen plate used to form the second screen printing coating film is 1.1 times or more the thickness of the gauze of the screen plate used to form the first screen printing coating film. The present invention relates to a method for manufacturing a three-dimensional pattern coated plate, which is characterized in that

Further, the present invention is a coated plate, which is printed by the printing method and has two kinds of screen printing using a coating material applied on the surface of a substrate. A three-dimensional pattern coated plate, which is coated with a screen-printed coating film No. 2 and in which the thickness of the gauze of the screen plate in the second screen printing is 1.1 times or more the thickness of the gauze of the screen plate in the first screen printing. .

The present invention will be described in detail below. As the substrate used in the present invention, a material used for ordinary screen printing can be applied without particular limitation. For example, various plastic materials, wood-based materials, ceramic-based materials, metal-based materials, fibrous materials, non-woven fabrics and the like, or plate-shaped or sheet-shaped materials can be mentioned. These substrates may be subjected to a base treatment such as a filling treatment, a polishing treatment, and a coloring treatment, if necessary.

As the colored paint used in the present invention, a paint having a viscosity of about 30 to 400 poise which has been conventionally used for screen printing can be used. That is, unsaturated polyester-based, acrylic-based, epoxy-based solvent-free paints; acrylic urethane-based, aminoalkyd-based, urethane-based, epoxy-based solvent-based paints, etc. can be used.
When the coating composition has a low solid content, the diluent volatilizes when dried and the coating film surface is likely to become uneven, and the water-based coating composition has poor leveling. In particular, in the present invention, after screen printing, it is possible to quickly handle to the next step, and an active energy ray-curable coating material having a high solid content is desirable. It is suitable.

UV-curable paints are UV-polymerizable compounds,
A photopolymerization initiator and a color pigment are essential components, and if necessary, an extender pigment, a solvent, an additive and the like are added. More specifically, a compound having a radical-polymerizable unsaturated double bond in the molecule is used as the “ultraviolet polymerizable compound”. Specifically, relatively low molecular weight polyester resin, alkyd resin, polyether resin, acrylic resin, epoxy resin, urethane resin, silicone resin, polybutadiene resin, acrylic oligomer or prepolymer and 2-ethylhexyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, tetrahydrofurfuryl (meth) acrylate, dipropylene glycol mono (meth) acrylate, (meth) acrylamide, N-vinylpyrrolidone,
Representative examples thereof include reactive monomers such as triethylene glycol di (meth) acrylate, trimethylolpropane tri (meth) acrylate, and dipentaerythritol hexa (meth) acrylate, either alone or as a mixture.

Further, as the UV polymerizable compound, cationic ring-opening polymerization type vinyl-2-ethylhexyl ether, vinyl decyl ether, 1,2-epoxycyclohexane,
Dicyclopentadiene dioxide, sorbitol polyglycidyl ether and the like can also be used.

As the "photopolymerization initiator", an acylphosphine oxide compound, a carbonyl compound such as benzoin, benzophenone or their esters, benzoyl peroxide, azobisisobutyronitrile,
Representative examples thereof include diphenyldisulfide, N-methyldiethanolamine, 2,5-diethoxy-4- (p-tolylthio) benzenediazonium hexafluorophosphate and the like. Titanium oxide, carbon black, zinc white, iron oxide, rouge, ultramarine, phthalocyanine blue as coloring pigments, silica sand as extender pigments,
Typical examples include silicates, talc, kaolin, barium sulfate, calcium carbonate, powdered or fibrous glass, resin powders such as polyurethane, polyester, polyethylene and polystyrene.

Further, typical examples of the "solvent" include toluene, xylol, acetone, methyl ethyl ketone, ethyl acetate and the like. Further, particularly in the present invention, it is preferable that the coating contains 20 to 70% by weight (in the coating solid content) of transparent glass beads having a particle diameter of 30 to 60 μm. That is, by containing glass beads, light energy can be smoothly propagated inside the coating film, and further, abrasion resistance and the like of the screen printing coating film can be improved.

As the coating material for forming the second screen printing coating film, a coating material having a concealing power such that the first screen printing coating film can be visually recognized when the second screen printing coating film is formed is used. The paint forming the first screen printing coating film and the paint forming the second screen coating film are usually different in any one or more of hue, lightness or saturation, but the same one is used. Is also good.

Next, a method for manufacturing the three-dimensional pattern coated plate of the present invention will be described. FIG. 1 shows a manufacturing process of a typical three-dimensional pattern coated plate of the present invention. That is, in step (i) in FIG. 1, the base coat layer 1 is formed by coloring the entire surface of the substrate A. Note that this step can be omitted. Next, in the step (ii), the first screen-printed coating film 2 is formed by partially screen-printing a colored coating material on the surface of the colored substrate A with a screen plate. The screen printing method uses a squeegee to move the paint over a screen plate in which the pattern parts other than those necessary for a proper mesh size are covered with resin, etc. This is a method of forming a screen-printed coating film having a raised pattern by rubbing a coating material on and then raising the screen plate. Then (ii
In the step i), the colored coating material is screen-printed on the first screen-printed coating film 2 and the whole or a part of the surface of the colored substrate where the first screen-printed coating film 2 is not applied at the same time by screen printing, The two-screen printing coating film 3 is formed. Although not shown in the drawing, it is also possible to apply a (color) clear paint on the entire surface of the substrate in the next step to finish the clear finish.

The screen printing plate used for the screen printing is preferably a screen printing plate using a gauze having a mesh number of 15 to 400 mesh, preferably 30 to 300 mesh, but the present invention provides a second screen printing coating film. The thickness of the gauze of the screen plate used to form 3 is
It must be 1.1 times or more than the thickness of the gauze of the screen plate used for forming the screen printing coating film 2.
The thickness of the gauze is almost proportional to the thickness of the formed screen-printed coating film (wet-state coating film), but when the thickness of both becomes less than 1.1 times, the periphery of the first screen-printed coating film 2 The second screen-printed coating film 3 formed on the part (edge) causes print dropouts or print skips due to steric hindrance, and the color of the first screen-printed coating film 2 appears on the second screen-printed coating film 3 and appears. It is not preferable because it lowers the product value.

As described above, the thickness of the gauze of the screen plate used for forming the second screen printing coating film 3 is
The thickness is 1.1 times or more than the thickness of the gauze of the screen plate used for forming the screen printing coating film 2, but the upper limit is
When the number of meshes of the screen plate is used within the above range, there is no particular limitation as long as the first screen printing coating film is visible through the surface of the second screen printing coating film.

Incidentally, a gauze having a thickness smaller than that of the gauze of the screen plate used for forming the first screen-printed coating film was used on a part of the first screen-printed coating film (that is, the opening of the sieve is Second in the small) screen version
Forming a screen-printed coating film is disclosed in JP-A-63-2.
Although it is disclosed in Japanese Patent No. 36569 and Japanese Patent Laid-Open No. 63-236570, in this method, the colors of the first screen printing coating film and the second screen printing coating film are clearly separated as if a cut picture was attached, Further, there is a drawback that the steps of both coatings are conspicuous and a natural feeling and a deep pattern cannot be obtained. However, in the present invention, in the state of covering the first screen printing coating film, and from the thickness of the gauze of the screen plate used for forming the first screen printing coating film,
In order to form the second screen printing coating film with a screen plate of 1.1 times or more thick gauze, a multi-layer consisting of a single film of the second screen printing coating film and a first screen printing coating film and a second screen printing coating film As for the appearance transferred to the film, it is possible to obtain a natural feeling and a deep pattern without missing prints. That is, the color change is sequentially changed from the color of the second screen-printed coating film (single film) to the composite color of the multi-layered film with the first screen-printed coating film in the outer layer. The change has a natural feeling and depth, and the step between the single film and the multi-layer film is gentle and becomes an inconspicuous natural step. This makes it possible to form a three-dimensional pattern with a natural feel and depth.

In the present invention, when the second screen printing coating is formed after forming the first screen printing coating, the second screen printing coating may cover all the first screen printing coatings, Further, only a part of the first screen printing coating film may be covered. Further, in the present invention, the interval for forming the second screen printing coating film after forming the first screen printing coating film may be even after the first screen printing coating film is dried (cured) or undried. May be the time. The drying (curing) means can be appropriately selected according to the type of the colored coating material used, but any means such as natural drying, forced drying, baking drying, or curing by ultraviolet irradiation can be used.

[0020]

The coated plate obtained according to the present invention has a natural and deep three-dimensional pattern formed from the first screen printing coating film and the second screen printing coating film, and has an unprecedented excellent external appearance pattern. Have. Further, according to the present invention, the color of the substrate (the color of the substrate subjected to the coloring treatment), the color of the second screen printing coating film, and the composite color of the color of the second screen printing coating film and the color of the first screen printing coating film. Further, in some cases, a multicolored pattern composed of the color of the first screen printing coating film is formed.

[0021]

EXAMPLES The present invention will be described in more detail with reference to examples below, but the present invention is not limited to the following examples.

(Example 1) A gauze (thickness: 135 μm, 148 mesh) plate-prepared in a floral pattern on a calcium silicate plate that was previously colored white with an acrylic urethane enamel paint, and a hardness of 65 using a brown UV curable ink. Printed with a urethane squeegee. At that time, the ink film thickness (the ink film thickness of the first color) was 75 μm. Then, it was irradiated with ultraviolet rays to be cured. Then, using a gauze (thickness: 220 μm, 60 mesh), which was made into a 200 mm square tile pattern designed to cover the entire floral pattern, was printed with an urethane squeegee with a hardness of 75 degrees using an ivory UV curable ink. . Ink thickness at that time (ink thickness of the second color)
Is 80 μm above the first color (total film thickness 155 μm),
The top of the material was 125 μm. Then, it was irradiated with ultraviolet rays to be cured. The finished print had the appearance of a smooth tile with a light beige floral pattern that appeared on an ivory background with no print skips or print defects. The appearance of the three-dimensional tile board has a deep natural pattern, giving it an unprecedented sense of luxury. The thickness ratio of the second-color and first-color gauze was 1.63.

(Example 2) A gauze (thickness: 73 μm, 200 mesh) plate-prepared in a polka dot pattern on a calcium silicate plate that was previously colored white with an acrylic urethane enamel paint, and a hardness of 65 using a blue ultraviolet curable ink. Printed with a urethane squeegee. Ink thickness at that time is 30μ
It was m. Then, it was irradiated with ultraviolet rays to be cured. 200m designed to cover the entire polka dot pattern
A gauze (thickness: 220 μm, 60 mesh) made into an m-square tile pattern was used to print with an urethane squeegee having a hardness of 75 degrees using an ivory ultraviolet curable ink having a hiding power lower than that in Example 1. At that time, the ink film thickness was 105 μm on the first color (total film thickness 135 μm) and 125 μm on the material. Then, it was irradiated with ultraviolet rays to be cured. The finished printed matter had a smoother tile appearance than that of Example 1 having a sky blue polka dot pattern so as to stand out on an ivory background without print skips and print omissions. The appearance of the three-dimensional tile board has a deep natural pattern, giving it an unprecedented sense of luxury. The thickness ratio of the second-color and first-color gauze was 3.01.

(Embodiment 3) Gray hard PVC plate with a diameter of 1
A gauze (thickness: 120μ) made in a kanoko pattern pattern of ~ 3mm
m, 148 mesh) and a urethane squeegee having a hardness of 65 degrees was used to print with a dark gray UV curable ink. At that time, the ink film thickness was 75 μm. Then, it was irradiated with ultraviolet rays to be cured. Then, using a gauze (thickness: 135 μm, 148 mesh) made with a pattern designed to have a width of 1 to 2 mm and a length of 2 to 6 mm as a motif and to appropriately overlap the Kanoko pattern, white UV light. Printing was performed with a urethane squeegee having a hardness of 60 degrees using a curable ink. The ink thickness at that time is 50 above the first color.
μm (total film thickness 125 μm), 75-9 above the material
It was 0 μm. Then, it was irradiated with ultraviolet rays to be cured. The finished printed material had a fibrous pattern sharply printed on the texture of Japanese fir-paper without any print skips or missing prints. A natural pattern expression was added to the three-dimensional appearance with moderate unevenness, giving a feeling of luxury that was unprecedented. The thickness ratio of the second-color and first-color gauze was 1.13.

(Example 4) A red hard PVC plate with a diameter of 0.2
Gauze (thickness: 58 μm;
It was printed with a urethane squeegee having a hardness of 80 degrees by using a brown UV curable ink with a 250 mesh). The ink film thickness at that time was 25 μm. Then, it was irradiated with ultraviolet rays to be cured. Subsequently, a gauze (thickness: 73 μm, 200 mesh), which was made into a small pattern with a flower motif, was printed with a urethane squeegee having a hardness of 75 degrees using a green UV curable ink. At that time, the ink film thickness was 10 μm on the first color (total film thickness 35 μm) and 30 μm on the material. Then, it was irradiated with ultraviolet rays to be cured. The finished printed matter had an appearance in which a small print pattern in which black satin was visible was sharply printed in the overlapping portion of the pattern without print skips or print omissions. The three-dimensional appearance with subtle unevenness was added to the natural pattern expression, giving a feeling of luxury that was unprecedented. The thickness ratio of the second-color and first-color gauze was 1.26.

(Example 5) A printed matter was finished in the same manner as in Example 1 except that the second color was printed without UV curing after printing the first color. Ink film thickness is 50 μm above the first color
(Total film thickness 125 μm), and 125 μm on the material. The finished printed matter had a completely smooth tile appearance with a beige floral pattern slightly darker than that of Example 1 so as to stand out on the ivory ground. With the natural pattern expression with depth like painting tiles, I felt a sense of luxury that was not possible with conventional printed materials. The thickness ratio of the second-color and first-color gauze was 1.63.

(Comparative Example 1) Printing was carried out in the same manner as in Example 1 except that the gauze used in plate making with the pattern film used in Example 1 was replaced. A gauze (thickness 220 μm, 60 mesh) and 200 made into a floral pattern
gauze (thickness 135 μm, 14
8 mesh) was used. The ink thickness of the first color is 125μ
m, and the ink thickness of the second color is 100μ above the first color.
The total film thickness was m (total film thickness 225 μm), but when the tile pattern was barely printed on the material, there were many print omissions around the first color and the ink film thickness was uneven. When the second color was printed again, there was less print omission, but there was no reproducibility of the pattern due to continuous printing and it could not be a product. The thickness ratio of the second-color and first-color gauze was 0.61.

(Comparative Example 2) Printing was carried out in the same manner as in Example 4 except that the gauze used in plate making with the pattern film used in Example 4 was replaced. A gauze (thickness: 73 μm, 200 mesh) made into a satin pattern and a gauze (thickness: 58 μm, 250 mesh) made into a small pattern were used. The ink thickness of the first color is 30 μm,
The ink thickness of the second color was 10 μm on the first color (total thickness 40 μm), but on the material there was a thickness of 25 μm, but small print omissions and print skips occurred in the satin pattern. In particular, a print omission occurred on a line in a portion parallel to the traveling direction of the squeegee. Even with continuous printing, it was not improved and could not be commercialized. The thickness ratio of the second-color and first-color gauze was 0.79.

(Comparative Example 3) The same material as in Example 1 was used.
Gauze (thickness 220 μm, 6
Printing was performed with a urethane squeegee having a hardness of 75 degrees using an ivory UV curable ink (0 mesh). At that time, the ink film thickness was 125 μm. Then, it was irradiated with ultraviolet rays to be cured. Next, a gauze (thickness 1
35 μm, 148 mesh) was printed with a urethane squeegee having a hardness of 65 degrees using a brown ultraviolet curing ink. At that time, the ink film thickness was 75 μm. Then, it was irradiated with ultraviolet rays to be cured. The finished print had the appearance of a tile with a brown floral pattern attached to the ivory ground. Although it had a three-dimensional appearance, the flower pattern was distinct and the tile surface was uneven, lacking a natural feel. The thickness ratio of the second-color and first-color gauze was 0.61.

[Brief description of drawings]

FIG. 1 is a process schematic view showing a method for producing a three-dimensional pattern coated plate which is an example of the method of the present invention. (I) is a state where a base coat is applied on the substrate surface. (Ii) is first on it
It is in a state of being screen-printed. (Iii) is a state in which the second screen printing is further applied thereon.

[Explanation of symbols]

 A substrate 1 base coat layer 2 first screen printing coating film 3 second screen printing coating film

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Makoto Emi 4-9-5 Takejodai, Sakai City, Osaka Prefecture (72) Inventor Mitsuhiro Matsuda 2-4-16 Hirata, Ibaraki City, Osaka Prefecture

Claims (2)

[Claims] 1. A coated plate in which two kinds of screen printing using a colored paint or ink are applied on the surface of a substrate, and a second screen printing coating film is applied so as to cover the first screen printing coating film. And the thickness of the gauze of the screen plate in the second screen printing is 1.1 times or more the thickness of the gauze of the screen plate in the first screen printing. 2. A colored paint or ink is screen-printed on a substrate surface with a screen plate to form a first screen-printed coating film, and then colored so as to cover the substrate surface and the first screen-printed coating film. In the method of screen-printing a paint or an ink with a screen plate to form a second screen-printed coating film, the thickness of the gauze of the screen plate used for forming the second screen-printed coating film is the first screen. A method for producing a three-dimensional pattern coated plate, which is 1.1 times or more the thickness of the gauze of the screen plate used for forming the printed coating film.