JPH0737012B2 - Decorative board and manufacturing method thereof - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a decorative board used as a building or furniture material and a method for manufacturing the same.

[Prior Art] It has been publicly known that a nameplate veneer and a resin-impregnated overlay paper are placed on the surface of a base material via an adhesive layer, and hot pressed to produce a decorative board.

At this time, the resin of the overlay paper penetrated into the veneer veneer, making it slightly transparent and increasing the depth, but there was a drawback that the pattern was monotonous.

[Problems to be Solved by the Invention] The present invention is intended to solve the above-mentioned drawbacks and to provide a very elegant decorative board and a manufacturing method.

[Means for Solving the Problem] In the present invention, a nameplate veneer having an embossed pattern and an overlay paper are sequentially laminated on a substrate surface via an adhesive layer, and the embossed pattern portion is more than the other portion. The present invention relates to a veneer characterized by not having transparency, and in order to produce such a veneer, after forming an embossed pattern on the surface of the name tree veneer, the name tree veneer is bonded via an adhesive layer. Placed on the substrate surface, further after placing an overlay paper on it, a method for manufacturing a decorative plate, characterized by hot pressing, and after bonding the name tree veneer through the adhesive layer on the substrate surface, Forming an embossed pattern on the surface of a nameplate veneer, then placing an overlay paper on it, and then applying heat and pressure, and a method for manufacturing a decorative sheet, and bonding a nameplate veneer to the surface of the board via an adhesive layer. At the same time, embossed on the surface of the name wood veneer After forming the stripe pattern, and then placing the overlay paper on it,
There is a method of manufacturing a decorative board characterized by hot pressing.

In the present invention, the substrate means any material such as plywood, particle board, calcium silicate board, pulp cement board and metal board.

Further, as the mounting layer, a phenol resin adhesive, a urea resin adhesive, a urea melamine resin adhesive, a water-based vinyl urethane resin adhesive, or the like, which are known adhesives used for adhering wood veneer, melamine resin-impregnated paper Resin-impregnated paper such as phenol resin-impregnated paper can be used. For resin impregnated paper,
It is preferable to use a resin impregnation rate of 40 to 60%. If it is less than 40%, some parts may not be completely bonded when the nameplate veneer is bonded, and if it exceeds 60%, the price of the impregnated paper will be high, which will increase the manufacturing cost and the resin will stain the nameplate veneer surface. There is a risk that the surface of the veneer veneer will be soiled by taking it out.

In order to form an embossed pattern on a name wood veneer, water is applied or sprayed on the name wood veneer in advance to increase the water content,
After that, the nameplate veneer is softened by using a heating means such as far infrared ray, high frequency wave, or microwave, and then a sharper embossed pattern can be formed. As a means for forming an embossed pattern, an embossing roll or an embossing plate can be used. At this time, the temperature is 50-200 ℃
(Preferably 100 to 180 ° C.) and a pressure of 5 to 50 kgf / cm ² (preferably 20 to 40 kgf / cm ² ). Needless to say, a well-known backing sheet such as pre-made Japanese paper or non-woven fabric may be adhered to the nameplate veneer.

As the overlay paper placed on the surface of the nameplate veneer, known resin-impregnated paper such as resin-impregnated paper which becomes transparent or translucent after curing, for example, diallyl phthalate resin-impregnated paper, methamine resin-impregnated paper and polyester resin-impregnated paper can be used. It is preferable to use a resin impregnated paper having an impregnation rate of about 60 to 90%. If it is less than 60%, it will not be sufficiently transparent or semi-transparent when it is cured, and if it exceeds 90%, the resin may flow out and be wasted during thermocompression curing.

When the above-mentioned overlay paper is placed on the surface of the nameplate veneer and heat-pressed at a temperature of 120 to 180 ° C and a pressure of 10 to 50 kgf / cm ² for 5 seconds to 20 minutes, the embossed pattern formed part of the nameplate veneer Since it is more compacted than the other parts, the resin of the overlay paper is less likely to penetrate, and the other parts are slightly transparent, but are not transparent, so that they are in a different state from the other parts.

In addition, when overlay paper is laminated on the surface of the nameplate veneer, the embossed pattern formed on the surface of the nameplate veneer may not be a recess depending on the resin impregnated in the overlay paper and the surface may be a smooth surface. However, even in that case, the embossed part remains as a pattern,
It does not impair the effects of the present invention.

EFFECTS OF THE INVENTION Since the present invention is configured as described above, the embossed pattern portion has a completely different transparent feeling from the other portions, and a very elegant decorative plate can be obtained.

[Example 1] In the case of a 0.6 mm-thick grain, an embossed plate having convex ridges in a grain pattern is brought into contact with a single plate, and it is 45 at 150 ° C and 30 kgf / cm ² .
After heat-pressing for 2 seconds, a decorative veneer having an embossed pattern was obtained. This decorative veneer is placed on a particle board with a thickness of 20 mm, the surface of which is contacted with melamine-impregnated paper (impregnation rate 50%), and overlay paper impregnated with diallyl phthalate resin with an impregnation rate 80% is further placed on it. Place, 90 at 180 ℃, 25kgf / cm ²
It heat-pressed for 2 seconds and obtained the desired decorative board.

This veneer had a dark and clear grain pattern background with the original pale grain pattern.

[Example 2] The veneer used in Example 1 was heat-pressed for 30 seconds at 150 ° C and 10 kg / cm ² for 30 seconds on a particle board having a thickness of 15 mm via a urea resin adhesive to obtain a veneered veneered veneer. . Next, by contacting the embossing plate with the convex stripes of abstract pattern, 50kg / c
After pressing at m ² for 30 seconds, place overlay paper impregnated with polyester resin on the surface, and place at 10 ℃ at 130 ℃, 5kgf / cm ² .
The desired decorative board was obtained by hot pressing for minutes.

This veneer had a single-grained grain pattern on the back of an abstract dented pattern.

Claims (4)

[Claims] 1. A nameplate veneer having an embossed pattern and an overlay paper are sequentially laminated on the surface of a substrate through an adhesive layer, and the embossed pattern portion is less transparent than other portions. Veneer to do. 2. An embossed pattern is formed on the surface of a nameplate veneer, the nameplate veneer is placed on the surface of the substrate via an adhesive layer, and an overlay paper is placed thereon, and then hot pressed. A method for manufacturing a decorative board, comprising: 3. After adhering a nameplate veneer to the surface of the substrate via an adhesive layer, forming an embossed pattern on the surface of the nameplate veneer, and then placing an overlay paper thereon and then applying heat and pressure. A method for manufacturing a decorative board characterized by the above. 4. A method for adhering a nameplate veneer to the surface of a substrate via an adhesive layer, at the same time forming an embossed pattern on the surface of the nameplate veneer, and then placing an overlay paper thereon and then applying heat and pressure. A method of manufacturing a decorative board.