JPS6050512B2 - Decorative board manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a decorative board having a decorative surface with a rich sense of essence that closely resembles natural wood.The present invention relates to a method for manufacturing a decorative board having a decorative surface rich in essence that closely resembles natural wood. The purpose of this is to add depth to the decorative board surface and improve the decorative effect of the decorative surface.

Conventionally, the surface of plywood was treated with a base treatment such as sealing, sanding, or pasting with thin paper, and then an undercoat, wood grain printing, and topcoat were sequentially applied to produce printed plywood.

However, the printed plywood obtained by this method has a uniform gloss although there are variations in color, and is insufficient to express the essence of natural wood. And in order to express this sense of essence, we created
A proposed method is to use ink mixed with metal powder pigments to form a pattern on the autumn wood or spring wood of a tree, then print a wood grain pattern or a conduit pattern, and then apply a top coat of paint on top of that. has been done.

However, with this method, although the difference in gloss between the pattern area created by the printing ink mixed with metal powder pigments and the pattern area created by normal printing ink gives a difference in gloss, the pattern area created by the printing ink mixed with the metal powder pigments It exhibits a luster that is far different from that of natural wood, with an accentuated metallic luster. In addition, the wood grain pattern and conduit groove pattern can only be expressed with the gloss of the top coat, and the gloss is weak, making it impossible to express the essence of natural wood, especially its gloss.

Furthermore, Special Publication No. 48-6524, Special Publication No. 48-2745
As in No. 1, the surface of the plywood is coated, sanded, or carved with several parallel grooves on the surface of the board, and in the area divided by the parallel grooves, 1
A proposed method is to apply colored transparent paint to each section, or to make the surface uniform by applying multiple coats of primer, and then applying a different base color to each section and applying woodgrain printing or multiple top coats to the surface. has been done.

However, this method only changes the color tone of the areas divided by parallel grooves, and the decorative surface is no different from that of conventional printed plywood, and is insufficient to express the wood texture of natural wood. It was hot.

The method of the present invention solves the problems of the prior art as described above,
The objective is to obtain a decorative board that closely resembles the texture of natural wood.

The gist of the present invention is to provide a method for manufacturing a decorative board, in which: (5) a base paint 2 colored in a wood base color is applied and dried on the surface of a substrate 1 which has been subjected to a base treatment if necessary, and (5) the entire surface thereof is made transparent. Alternatively, Ai-ko printing 3 is performed using printing ink or burl ink containing translucent metal powder pigments, 6 a wood grain pattern 4 is printed on the surface using ordinary printing ink, and 4 metal It consists of the process of applying several strips of pattern 5 to an appropriate width using printing ink or burl ink containing powder pigments, and then applying a transparent or translucent top coat 6 to the entire surface of 6 and drying it. It is.

Embodiments of the method of the present invention illustrated in the drawings will be described below.

1 The surface of the substrate 1 is subjected to surface treatment by a suitable combination of sealing coating, sanding, sealer coating, thin paper pasting, etc. as necessary.

Substrate 1 is plywood, fiberboard, wood board, gypsum board, cement board,
Any organic or inorganic plate-like material such as a metal plate or synthetic resin plate, or a sheet-like material such as paper, cloth, or synthetic resin sheet, or a sheet-like material affixed to the surface of the above-mentioned plate-like material. However, it is not particularly limited.

2. After coating the surface of the substrate 1, which has been subjected to surface treatment as necessary, with a coating device such as a roll coater or a flow coater, the base paint 2 colored in a wood base color is applied uniformly to the entire surface, and then dried with hot air. The substrate 1 is made to have the same color tone by drying and curing using a drying device such as a dryer or an infrared dryer.

As the base coating material 2, a transparent, translucent, or opaque paint is used, which is a synthetic resin such as an acrylic resin or a urethane resin, or an orchid resin, to which optional colorants, fillers, etc. are added. In this case, if you want to make the most of the surface of the substrate 1 in terms of design, use transparent or semi-transparent paint, and if you don't want to make the most of the surface of the substrate 1 or want to hide it, use semi-transparent or opaque paint, and use the same color tone. Conceal and unify. Next, printing 3 is applied to the entire surface using a printing ink or burl ink to which a transparent or translucent metal powder pigment is added, using a gravure printing machine, an offset printing machine, or the like.

Printing inks or burr inks containing metal powder pigments include aluminum powder, copper powder, brass powder, alloy powder of copper and zinc, basic lead carbonate, lead phosphate, etc., using a synthetic resin such as acrylic resin, alkyd resin, or urethane resin as a vehicle. , hexagonal plate-shaped fine lead white, medicinal flake-shaped microcrystalline behimus compound, etc. are appropriately added and mixed. O The wood grain pattern 4 is printed on the surface using a printing device such as a gravure printing machine or an offset printing machine using ordinary gravure ink, offset ink, etc. The wood grain pattern 4 is printed in one color. However, multicolor printing may be performed.

In the 4th part of the wood grain pattern, the lower layer 2 printing 3 can be seen through the ink layer, giving it a light metallic luster, and in other parts other than the 4 part of the wood grain pattern, the gloss of the direct 3 printing 3 is directly exposed. , which closely resembles the grain luster of natural wood.

) Next, using printing ink or burr ink to which metal powder pigments have been added, several strip patterns 5 are formed in an appropriate width using a coating device such as a roll coater or a flow coater, or a printing device such as a gravure printing machine or an offset printing machine. Form.

Ink or bar ink containing metal powder pigments can be made using acrylic resin, urethane resin, or alkyd resin as a vehicle, as well as aluminum powder, copper powder, brass powder, alloy powder of copper and zinc, basic lead carbonate, lead phosphate, and hexagonal plate. A mixture of finely powdered lead white, flaky microcrystalline bismuth compound, etc. is appropriately added and mixed. The luster caused by the use of metal powder pigments in the ink forming the band pattern 5 on the surface of the wood grain pattern 4 and the metal powder pigments in the ink of the solid printing 3 that can be seen through the wood grain pattern 4. Combined with the luster caused by the action, a unique luster is emitted, which is different from the luster hue of the original striped pattern 5, and improves the design effect.

Furthermore, after uniformly applying colored or uncolored transparent or translucent top paint 5 to the entire surface using a coating device such as a roll coater or a flow coater,
After drying with hot air, the ink layer and top coat are dried and cured using a drying device such as an infrared dryer.

The coating of the top paint 5 provides a protective layer on the surface, and by coloring it, the color and gloss of the wood grain pattern and band pattern can be made to more closely resemble natural wood, as described above.

The effects of the present invention are summarized as follows.

That is, since the hard printing layer 3 containing metal powder pigment etc. is formed below the wood grain pattern 4, the wood grain pattern 4
The glossy printed layer 3 is transmitted through the parts and exhibits a light gloss, and in the areas other than the wood grain pattern 4, the printed layer 3 is directly seen through and exhibits a strong gloss. Its luster closely resembles that of natural wood. In addition, since the surface including the wood grain pattern 4 is provided with a strip pattern 5 made of ink containing metal powder pigment, the gloss of the strip pattern 5 is A.
Coupled with the gloss of the printed layer 3, the gloss of the wood grain pattern 4 becomes even more similar to the gloss of natural wood. Further band pattern 5
By forming the strip pattern 5 part and the strip pattern 5
Due to the difference in gloss from other parts, it looks like a single grain pattern was created by selecting different types of trees, and the surface changes in gloss and color make it look like a combination of several narrow boards of natural wood. It has the feel of high quality wood.

Example: After the surface of the plywood has been subjected to the usual surface treatment such as sealing paint and sanding, an opaque base paint made of urethane resin colored to the base color of wood is applied uniformly to the entire surface using a roll coater. After that, it is dried using a hot air dryer at 70 to 120° C. for 3 minutes to form an undercoat film 2 to hide and unify the same color tone.

Next, solid printing 3 is applied to the entire surface using a gravure offset printing machine using gold ink mixed with 10% brass powder using a urethane resin as a vehicle, and then a hot air dryer is used to print at 70-100°C12. Dry for a minute to form a clear paint film.

First and second color woodgrain patterns 4 are sequentially printed on the surface using a conventional gravure offset ink using a gravure offset printing machine.

Next, a three-strip pattern is printed using a gravure offset printing machine using urethane resin as a vehicle and silver ink mixed with 20% aluminum powder.

Further, a transparent top coat of a colored urethane resin was applied to the entire surface using a roll coater at 30 dah 1 Tr1, and then dried at 75 to 120°C for 3 minutes using a hot air dryer.

In this way, a decorative board with a decorative surface rich in the feel of high-quality wood that closely resembles natural wood was obtained.

[Brief explanation of the drawing]

Fig. 1: A perspective view of a decorative board obtained by the method of the present invention, Fig. 2: An enlarged view thereof, 1...Substrate, 2...
・・Undercoat, 3・・・・ Solid printing, 4・・・・・
・Wood grain pattern, 5... Band pattern, 6... Nogami paint.

Claims (1)

[Claims] 1. Printing ink or printing ink in which a base coat 2 is applied to the surface of a substrate 1 which has been subjected to a base treatment as necessary, and a transparent or translucent metal powder pigment is added to the entire surface of the base coat 2. Solid printing 3 is performed using pearl ink, a wood grain pattern 4 is printed on the surface using ordinary printing ink, and then an appropriate width is printed using impression ink or pearl ink containing metal powder pigments. A method for producing a decorative board, which is characterized in that after several strip patterns 5 are applied to the board, a transparent or translucent top coat 6 is applied to the entire surface and then dried. 2. The method for manufacturing a decorative board according to claim 1, wherein the substrate 1 is made of plywood and the undercoat 2 is transparent or semi-transparent.