Formaldehyde-less fiber board and its preparation method

Abstract

The invention relates to processing technique for ornament material and building laminated fine wood board. It adjusted the adhesive to apply on the twister, sprayer, then delivering the wood fiber to be twisted and sprayed, spreading the wood fiber for cold pressing, then hot pressing, trimming, sand polishing to get the fiber 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 manufacturing fiberboards for decoration materials and building materials, in particular to a formaldehyde-free fiberboard 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. As one of the most widely used decoration products and building materials, fiberboard, which is common in the market at present, most of its formaldehyde emission can meet the national standard requirements (in 2001, the country issued the "Indoor Decoration Materials Wood-based Panels and their Products Formaldehyde Release "Limit" stipulates in GB18580-2001 that the release of free formaldehyde is ...

AI Technical Summary

Problems solved by technology

As one of the most widely used decoration products and building materials, fiberboard, which is common in the market at present, most of its formaldehyde emission can meet the national standard requirements (in 2001, the country issued the "Indoor Decoration Materials Wood-based Panels and their Products Formaldehyde Release "Limit" stipulates in GB18580-2001 that the release of free formaldehyde is ≤1.5mg / L, which can be used directly indoors, and the decoration materials with release of free formaldehyde ≤5.0mg / L must be decorated before they can be used indoors), but there are still harmful The release of harmful substances, 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 meet the national standard requirements, but When 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