Production process of formaldehyde-free laminated wood HPL veneer

Abstract

The invention discloses a production process of a formaldehyde-free laminated wood HPL veneer. The production process comprises the following steps of (1) material preparation; (2) glue mixing; (3) laminated wood core splicing; (4) gluing and attaching of the HPL veneer; (5) cold pressing; and (6) edge cutting. The production process of the formaldehyde-free laminated wood HPL veneer has the advantages that (1) the detected formaldehyde emission of the veneer is ND (0.1 mg / L) and meets the formaldehyde-free environment-friendly requirement; (2) the finished veneer has various patterns, is highin selectivity and meets the requirements of different users for surface decoration effects; (3) raw materials for making the veneer are saved, the structure of the veneer is stable, and the surfaceof the finished veneer is very resistant to cracks, scratches, abrasion and pollution; and (4) secondary facing for decoration or furniture is not needed, the painting procedure is omitted, the production process is particularly beneficial to furniture factories, and environmental protection of the painting procedure is achieved.

Description

technical field [0001] The invention relates to the technical field of wood board processing, in particular to a production process of formaldehyde-free laminated HPL veneer. Background technique [0002] Thermosetting resin impregnated paper high-pressure laminate, abbreviated as HPL (Decorative High-pressure Laminate), is a refractory building material for surface decoration, with rich surface colors, textures and special physical properties. Widely used in interior decoration, furniture, kitchen cabinets, laboratory countertops, exterior walls and other fields. [0003] At present, the impregnated film paper veneer wood-based panels sold in the market and produced by factories all contain adhesives made of formaldehyde, and the formaldehyde content in the panels is relatively high. The current national standard "GB18580-2001 Limits of formaldehyde release in interior decoration materials wood-based panels and their products" stipulates that the minimum release amount is ...

AI Technical Summary

Problems solved by technology

Now the national standard "GB18580-2001 Formaldehyde Release Limits in Interior Decoration Materials Wood-based Panels and Their Products" stipulates that the minimum release amount is also 1.5mg / L, and formaldehyde will be released for a long time, which is extremely harmful to the human body

[0004] In addition, with the surging development of the furniture industry, the requirements for environmental protection of paint are becoming more and more stringent. The number of wood-based panels impregnated with film paper for furniture is increasing. The surface properties of existing panels are difficult to meet the standard requirements, especially the crack resistance performance is not up to standard.

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