JPS6057391B2 - Manufacturing method of uneven pattern decorative board - Google Patents

Description

[Detailed description of the invention] The present invention relates to a method for manufacturing decorative laminates.

As shown in Japanese Patent Publication No. 52-99, a pattern is printed on the surface of the material using an oil-soluble dye, and then a colored paint is applied to the entire surface of the material, and the dye is lifted up to the middle part of the colored paint. There are ways to do this.

However, with this method, the entire 5 patterns will be blurred.

5 There is only a change in color tone between the dye and the colored paint,
Lack of change.

6. There are problems such as difficulty in uniformly lifting the dye up to the middle part of the thickness of the colored paint.

The present invention aims to solve the conventional problems of decorative laminates using such dyes. That is, the present invention provides a pattern pattern 3 on the base coating film 2 of the substrate 1 as described in detail below.
Immediately after forming the streak pattern 4, by applying the streak pattern 4, the dye or pigment in the printing ink of the pattern pattern 3 is eluted into the paint of the streak pattern 3 to form a bleeding pattern.

The present invention is advantageous in that it has such a configuration.
The objective is to obtain a decorative board with a uniform and varied bleed pattern. The configuration of the present invention will be explained below based on the drawings.

(1) The substrate 1 is a plate-like body made of organic or inorganic material such as plywood, fiberboard, gypsum board, cement board, etc., and may have paper, cloth, a synthetic resin sheet, etc. adhered thereon.

The surface of the substrate 1 is subjected to an appropriate surface treatment.

As the base treatment, filler coating, sealer coating, sanding, etc. are selected as appropriate to smooth the surface and improve adhesion with paint. (2) Next, an undercoat is applied to the surface of the substrate 1 using a coating machine such as a flow coater or a roll coater, and then dried and hardened to form the undercoat film layer 2.

As the undercoat, synthetic resin paint such as acrylic resin or urethane resin is usually used.

(3) Printing is performed on the undercoat film layer 2 using a printing ink mixed with an oil-soluble dye to form a pattern 3.

The printing ink used is normal gravure ink and gravure offset ink. The oil-soluble dye may be replaced with an oil-soluble pigment, a solvent-dispersed dye, or a solvent-dispersed pigment.

Printing is carried out using a conventional gravure printing press or gravure offset printing press.

The pattern 3 can be selected as appropriate, such as a wood grain pattern or an abstract pattern.

(4) Before the printing ink forming the pattern 3 dries and hardens, a transparent or translucent colored paint containing a substance capable of dissolving the dye or pigment is applied to the base coating layer 2 and the pattern 3.
It is applied in a pattern on the top and dried to form a pattern 4.

The period before the printing ink for the pattern 3 is dried and hardened preferably refers to a "wet state".

Various solvents such as methanol, acetone, xylene, and toluene are used as substances for dissolving dyes, and are added to synthetic resin paints such as acrylic resins and urethane resins, which are transparent or translucent colored paints. As a means for applying this transparent or semi-transparent paint in a streak-like pattern, for example, a baffle plate 5 shaped like a ^-shaped baffle plate 5 that receives the paint flowing down at the bottom of the flow coater is used.
(Fig. 3) is used so that the baffle plate 5 vibrates. The point at which the streak-like paint is applied is when the pattern 3 is printed; the ink is in a wet state, so the solvent in the paint that forms the streak pattern 4 dissolves the dye in the printing ink of the pattern 3, and the streak pattern 3 is printed. It is eluted into pattern 4 and forms bleeding pattern x.

(FIGS. 2 and 3) Furthermore, the streak pattern 4'' formed on the undercoat film layer 2 exhibits the original transparent or translucent color tone of the colored dye, and does not form a bleeding pattern. (5) Finally, a top coat is applied and dried to form a clay coat layer 5'', thereby obtaining the desired uneven patterned decorative board.

Since the present invention has the above-mentioned configuration, its functions and effects can be summarized as follows. 4 Among the pattern patterns 4 and 4'' formed by transparent or translucent colored paint, the dye in the printing ink oozes out from the pattern pattern 4 on the printing ink of pattern pattern 3, forming a smudge pattern x. and a variety of three-dimensional objects3.
A confusing makeup pattern can be created.

5. Since the streak pattern 4 made of transparent or semi-transparent colored paint is originally applied in the form of streaks, the circles are clear and do not blur, making it possible to obtain a highly decorative decorative pattern.

Example (1) An O hard fiberboard is used as the substrate 1, and the surface is coated with a sealer to provide a base treatment.

Next, apply 50-80 y/y of acrylic resin paint to the entire surface of the substrate 1 using a roll coater, apply an undercoat, and dry for 5 minutes using a hot air dryer to form an undercoat layer. form 2.

Next, a pattern 3 is printed on the surface of the undercoat layer 2 by a gravure printing machine using gravure ink mixed with an oil-soluble dye.
print.

When the printing ink for O-pattern pattern 3 is dry to the touch, a transparent solvent-based acrylic resin paint that can dissolve the dye in the printing ink is melted into the lower part of the streak-like paint applicator, that is, the flow coater. This device is equipped with an eight-shaped baffle plate that receives the paint, and applies the paint while vibrating the baffle plate.
Apply to the entire surface.

O Then, when it is dried in a hot air dryer for 4 minutes at 50-100C to form a streak pattern, the dye in the printing ink is eluted into the streak pattern, and a bleeding pattern is formed in the streak pattern.

0 Next, a translucent colored urethane paint is applied to the entire surface using a flow coater at 50-80V/day, and dried using a hot air dryer for 5 minutes at 50-120C to form a top coat layer.

In this way, the desired uneven patterned decorative board was obtained.

Example (2) Using a plywood board 1 that has been sanded with a filler coating, the coating treatment is performed in the same manner as in Example (1),
A decorative plywood with an uneven pattern having a multicolored pattern was obtained.

[Brief explanation of drawings]

Fig. 1: A cross-sectional view of a decorative board obtained by the method of the present invention, Fig. 2: A perspective view thereof, and Fig. 3: A sectional view showing a method for manufacturing the same. 1: Substrate, 2: Undercoating film layer, 3: Pattern pattern, 4: Crimson pattern, 5: Baffle plate, x: Bleeding pattern, y: Vibration j direction.

Claims (1)

[Claims] 1. On the surface of the substrate 1 which has been subjected to an appropriate base treatment, an undercoat is applied and dried to form the undercoat film layer 2, and a pattern 3 is printed on it using printing ink mixed with dye or pigment. After that, before the printing ink of the pattern 3 dries and hardens, a transparent or translucent colored paint containing a substance capable of dissolving the dye or pigment is applied to the streak pattern 4.
A method for manufacturing a decorative board with an uneven pattern, characterized in that dye in printing ink forming a pattern 3 is eluted into a paint applied to a pattern 4.