Process for manufacturing decorative veneer plywood

Abstract

The invention relates to a process for manufacturing a decorative veneer plywood, in which a relative displacement cannot happen between a veneer and a substrate, and a crackle cannot appear on the veneer. The process comprises the substrate, and comprises the following steps: (1) veneer processing, namely rolling paper or leather to be pasted for 25 to 30 seconds by a flat pressing machine at a temperature of between 150 and 170 DEG C, taking the paper or the leather out, laying the paper or the leather flatly, spraying fog on the surface of the paper or the leather, and cooling the paper orleather to prevent the paper or the leather from curling; (2) substrate processing, namely compensating putty to the surface of the substrate, drying, polishing the substrate with an electric abrasive finishing machine, making the flatness of the surface of the substrate reach that of a middle density plate; and (3) compounding, namely coating an adhesive on the processed surface of the substrate, pasting the processed paper or leather on the surface of the substrate, pressing in a cold press for 30 to 40 minutes, taking out, pressing in a hot press for 8 to 10 minutes under a pressure of between 5 and 8 MPa, and sawing edges after the plywood is pressed. The decorative veneer plywood has the advantages that: the decorative veneer plywood has no crack or displacement in the change of seasons, has high peeling strength, and does not have peeling phenomenon.

Description

Technical field [0001] The invention relates to a manufacturing process of a decorative veneer that neither produces relative displacement between a veneer and a substrate nor causes cracks on the veneer, and belongs to the field of decorative board manufacturing. Background technique [0002] CN101412230A, the name "a kind of flame-retardant decorative veneer", the veneer is obtained by compounding the flame-retardant plywood as the substrate and the veneer of natural precious tree species. The flame-retardant plywood is produced according to the following method: the wood veneer is immersed in the flame retardant solution, the wood veneer is dried, and the mixed adhesive is applied on the upper and lower surfaces of the veneer, and the veneer is glued to form a slab. Cold pressing, hot pressing, edge trimming, sanding, cloth surface and other processes to obtain flame retardant plywood products. The flame retardant is a mixture of oligomeric ammonium phosphate, ammonium phosph...

AI Technical Summary

Problems solved by technology

Its shortcomings: First, the skin or paper on the veneer is prone to cracks or displacements in the four seasons, which directly affects the strength and sensory quality of the decorative board; second, the flatness is not good, and it is easy to produce paper bubbles, Partial peeling of skin bubbles and paper (skin) from the substrate

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