Sanding-free high-pressure decorative panel for cladding and production method thereof

Abstract

The invention relates to the field of an indoor decorative material and specifically relates to a sanding-free high-pressure decorative panel for cladding and a production method thereof. The sanding-free high-pressure decorative panel comprises a sanding-free base plate and a decorative layer, wherein the decorative layer is arranged on the sanding-free base plate; the sanding-free base plate is made of kraft paper which is soaked in thermoset modified melamine resin and then coated with a sanding-free release agent on the back; the decorative layer is formed according to the steps of soaking the decorative paper in thermoset melamino-formaldehyde resins, drying and then coating the thermoset melamino-formaldehyde resins; the sanding-free base plate and the decorative layer are once molded and formed under the conditions of high temperature and high pressure. The decorative panel provided by the invention can be heated, coats an irregularly shaped wood substrate and then can be molded; sanding is not required; the sanding-free high-pressure decorative panel has the characteristic of bending radius less than or equal to 0.7mm, is fit for precision machining of decorative panel with radian requirements on later corner and edge sealing and has the advantages of fire resistance, water resistance, moisture resistance, dry heat resistance, impact resistance, pollution resistance, corrosion resistance, scraping resistance, ageing resistance, beautiful appearance, durability, high size stability, high bonding strength and zero pollution of organic solvents including benzene in paint.

Description

technical field [0001] The invention relates to the field of interior decoration materials, in particular to a sand-free high-pressure decorative surface material for coating and a preparation method thereof. Background technique [0002] At present, with the improvement of people's living standards, the requirements for the aesthetics, functionality, and individuality of decoration are gradually increasing. At present, my country's interior decoration materials mainly include blockboard, plywood, and glulam with wood as the base material. Artificial boards such as density boards and particle boards based on wood derivatives, fire-resistant glass magnesium boards and gypsum boards based on inorganic mineral powder, and PVC boards and aluminum-plastic boards based on polymer materials. Most of the surface of wood or wood-based panels needs to be painted, painted or decorated with low-pressure veneer. Most of the paints and paints contain volatile solvents such as benzene, tolu...

AI Technical Summary

Problems solved by technology

The thickness of single-sided thin high-pressure decorative board is generally 0.5-1.2mm, and it cannot be used alone. It needs to be pasted on other substrates, such as particle board and blockboard. However, most high-pressure decorative boards are flat structures. In order to avoid the edge effect, other materials need to be used for seams at the edges. Compared with the integrally formed decorative panels, the seams formed in this way are easy to be contaminated with pollutants, enter moist air, corrosive gases or liquids, etc., causing stickiness. The bonding strength decreases, and there may be differences in color or gloss between the two materials, which makes the surface effect poor; in the production of high-pressure decorative panels, when there are seams, in order to avoid sticking between the workpiece and the template, the mold is generally used The method of adding a release agent in the impregnation resin of the surface layer is blended; in order to avoid the sticking between the parts, the BOPP isolation film is often used between the bottom paper of the two groups of slabs for isolation or during the impregnation. The resin of the backing paper is blended with a release agent and then isolated with an aluminum plate. Since the bottom surface is smooth after pressing, it needs to be sanded with an abrasive belt so that it can be pasted on the substrate. The thickness of the high-pressure decorative surface material itself is small, and the paper fibers used to produce the high-pressure decorative surface material are distributed in the vertical direction, and the direction of the sawing sand marks is also vertical, so it is easy to reduce the transverse strength.

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