Low-formaldehyde high-quality solid wood composite floor and processing technology

Abstract

The invention discloses a low-formaldehyde high-quality solid wood composite floor and a processing technology. The low-formaldehyde high-quality solid wood composite floor comprises a base plate (1), the back face of the base plate (1) is connected with a back plate (3) through first thermocuring bond paper (2), and the front face of the base plate (1) is connected with a face plate (5) through second thermocuring bond paper (4); and the base plate (1) comprises a core plate (101), and a single plate (102) is arranged on each of the front face and the back face of the core plate (101). The problem of cracking of a surface plate at the time of using a whole core plate can be effectively solved, and the formaldehyde emission of the floor is reduced; on the basis, stable gluing of MDI formaldehyde-free glue can be achieved by optimizing the processing technology, compared with an existing gluing technology using urea-formaldehyde glue or formaldehyde-free glue, the technology can be conveniently controlled, needed gluing procedures can be reduced, and then the low-formaldehyde high-quality solid wood composite floor has the characteristics of being high in structural stability, good in environment-friendly effect and convenient to process.

Description

technical field [0001] The invention relates to a solid wood composite floor, in particular to a low-aldehyde high-quality solid wood composite floor. Background technique [0002] Traditional solid wood composite flooring is divided into rib core flooring and whole wood core flooring. Compared with whole wood core flooring, rib core flooring has better structural stability and is less prone to deformation, cracking and delamination, so it is more widely used. selected by the user. However, the disadvantage of the rib core floor is that after the floor is used for a long time, the problem of "rib marks" is prone to appear on the surface, which makes it difficult to meet the needs of users. Therefore, how to improve the structural strength and stability of the whole wood core floor so that it can replace the rib core floor has become a problem that floor manufacturers need to solve urgently. [0003] On the other hand, at present, each layer of veneers in solid wood composi...

AI Technical Summary

Problems solved by technology

[0003]On the other hand, at present, each layer of veneer in solid wood composite flooring is bonded by urea-formaldehyde glue, and once urea-formaldehyde glue is applied, formaldehyde will be released. As a result, the floor will emit pollutants in the subsequent process and use process, which reduces the emission standard of the floor

In order to solve this problem, although zero-emission formaldehyde-free adhesives have been developed on the market, since formaldehyde-free adhesives have high requirements on the control accuracy of process parameters in the floor gluing process, it is easy to cause its adhesion to be stable due to insufficient control The decline in performance makes it difficult to promote the use of formaldehyde-free adhesives in the composite flooring process.

[0004]In addition, the method of gluing the floor with urea-formaldehyde glue or formaldehyde-free glue also requires the floor to be pre-pressed and hot-pressed in multiple stations during the processing process. process, and the current conventional preloading time is 60min-90min in summer and 90min-120min in winter, which takes a long time; thus reducing the processing efficiency of the floor and increasing the complexity of the process

[0005] Therefore, the existing solid wood composite flooring has the problems of low structural stability, poor environmental protection effect and difficult processing

Images