Formaldehydeless fine wooden board and its preparing method

Abstract

The invention relates to processing technique for ornament material and building laminated fine wood board. It adjusts the glue and applies to the gluing machine, sending the wood chip to double coating machine then to the working platform and cold press on the cold forging machine. Putting the laminated wood board on the hot press, it forms into the blank made of wood chip and wooden jobbing sheet. It cut off its irregular parts, sanding both surface smooth, then coating the plate blank for double faces coating, spreading bottom and surface plates on the working platform, then cold and hot pressing, trimming and sanding to get the laminated wood board. The laminated wood board is moisture proof, water proof, durable and good in stability.

Description

technical field [0001] The invention relates to the technical field of making blockboards for decoration materials and building materials, in particular to a formaldehyde-free blockboard free of free formaldehyde release and a manufacturing method thereof. Background technique [0002] With the improvement of people's living standards, people have put forward higher requirements for the decoration of their residences, offices, activities and other places. Not only are they required to be beautiful, trendy, natural and simple, but also healthy and environmentally friendly. Blockboard is the most widely used decoration product and building material. Most of the formaldehyde emission of the common blockboard in the market can meet the national standard requirements (in 2001, the country issued the "Interior Decoration Materials Wood-based Board and Its Products") Formaldehyde release limit in "GB18580-2001 stipulates that free formaldehyde release ≤ 1.5mg / L, can be used directl...

AI Technical Summary

Problems solved by technology

Blockboard is the most widely used decoration product and building material. Most of the formaldehyde emission of the common blockboard in the market can meet the national standard requirements (in 2001, the country issued the "Interior Decoration Materials Wood-based Board and Its Products") Formaldehyde release limit in "GB18580-2001 stipulates that free formaldehyde release ≤ 1.5mg / L, can be used directly indoors, decoration materials with free formaldehyde release ≤ 5.0mg / L must be decorated before being used indoors), However, there is still the release of harmful substances. The decoration materials or supplies used in homes, offices, activities and other places, such as floors, furniture, wallpapers, ceilings, wooden doors and windows, paints, etc., although the release of harmful substances of each product will reach the national standard It is required, but if several decoration materials are used together in the same space, the harmful substances released together will greatly exceed the national standard, which will seriously threaten the health of the people

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