SU1717405A1 - Method of manufacture of boards with shaped decorative pattern - Google Patents

Abstract

The invention relates to the woodworking industry, in particular to the manufacture of veneered, decorated finished panels, such as furniture or building parts. The purpose of the invention is to reduce the labor intensity of making shields with relief ornament by combining operations and selecting the optimum moisture range of the cladding material. The method is carried out as follows. Birch veneer is taken, they are painted and impregnated with thermo-reactive resin, dried to a moisture content of 12%, the bag is collected, placed between profiled gaskets and pressed at 160 ± 5 ° C and pressure of 4-5 MPes for 12-16 minutes, and the cycle is repeated in a moisture range of 12-18%. C / s

Description

The invention relates to the woodworking industry, in particular to the manufacture of veneered, decorated finished panels, such as furniture or building parts.

The purpose of the invention is to reduce the labor intensity of making shields with relief ornament by combining operations and selecting the optimum moisture range of the cladding material.

The method is carried out as follows.

L i eme r 1. Take the lined material - birch veneer, paint it with the roller method with aqueous dye N ° 16 of the required concentration, then impregnate with a thermosetting impregnating melamine-formaldehyde impregnant in the roller impregnation unit - veneer drying with its consumption of 0.15 - 0.20 kg / m and in the same place it is dried to a moisture content of 12%, since cracking occurs at veneer moisture less than 12%.

Then the package is assembled in the following sequence: impregnated birch veneer, sublayer film, wood shield, sublayer film, and birch veneer are placed on the profiled gasket. The assembled package is placed in a press type SPG-250. The thickness of the wood panel is 16 mm. The bag is subjected to one-time pressing at a temperature of the press plates 160 ± 5 ° C, specific pressing pressure 4 ± 0.5 MPa (40 ± 5 kg / cm), pressing time 12-16 minutes. Then the package is unloaded from the press. The temperature of the press plates after cooling is 15 ± 5 ° C. The depth of the ornament is 1.5 mm.

J

I - 5 S

Ј,

About SP

PRI mme R 2. Take veneered material - birch veneer, dyed with water dye No. 16 of the required concentration, then impregnated with melamine-formaldehyde impregnating resin with thermosetting resin in a roller veneer drying impregnation unit with a consumption of 0.15-0.20 kg / m2 and in the same place, it is dried to a moisture content of 18%, since when the moisture content of the veneer is greater than 18% during the pressing process, stain and whiteness are formed on the surface of the shield.

Then the package is assembled in the following sequence: impregnated birch veneer, sublayer film, wood shield, sublayer film, and birch veneer are placed on the profiled gasket. The assembled package is placed in a press type SPG-250. The thickness of the wood panel is 16 mm. The bag is subjected to a one-time pressing at a temperature of the press plates 160 ± 5 ° С, specific pressing pressure 4 ± 0.5 MPa (40 ± 5 kg / cm2), pressing time 12-16 minutes. Then the package is unloaded from the press.

The temperature of the press plates after cooling is 15 ± 5 ° C, the ornament depth is 1.5 mm. The set of all sequentially performed actions in examples 1 and 2

reduces labor intensity and material consumption and increases the degree of technological purity of the process.

Claims (1)

Claim method The production of shields with embossed ornament, including gluing the facing material onto the backing board with a binder, embossing the relief ornament onto the facing material, wetting it and finishing the shield, characterized in that, in order to reduce the complexity of manufacturing panels with embossed ornament by combining operations and selecting the optimal moisture range of the cladding material, sticking the cladding material, embossing the relief ornament and trimming the shield is carried out jointly, while the moisture of the cladding material is reduced by drying to 12-18%, and moistening facing material is made prior to gluing.