Wood color difference bleaching and desalting treatment process

Abstract

The invention discloses a wood color difference bleaching and desalting treatment process which comprises the following steps: step 1, wood rough grinding pretreatment; step 2, preparation of a bleaching agent from calcium hypochlorite; step 3, wood dipping and ultrasonic bleaching treatment; step 4, ultrasonic washing treatment before secondary bleaching; The color difference defect of the wood surface is bleached by using the bleaching agent prepared from calcium hypochlorite, so that the color difference of the produced wood product is greatly reduced, the product quality is ensured, and the roughness of the wood surface is increased by adopting raw abrasive paper for polishing before bleaching treatment; The bleaching agent can more quickly and deeply permeate into the surface of the wood during dipping and bleaching, ultrasonic treatment and two-time bleaching treatment are matched, so that the bleaching effect of the wood is better, and the color difference of the bleached wood is lower.

Description

technical field [0001] The invention relates to the technical field of wood defect treatment, in particular to a wood color difference bleaching and desalination treatment process. Background technique [0002] Trees will inevitably have some natural defects during the growth process. Natural defects include defects such as tree knots, trunk shape, wood structure cracks and scars. At the same time, there will also be some biological hazard defects during the natural growth process, including discoloration, Decay, insect damage, marine wood-boring animals and harmful defects of wet wood, no matter what kind of defects are, will pose a greater threat to the quality of wood processed products [0003] During wood processing and production, due to the different shades of color difference between the wood raw materials of the same tree species, the color of the wood products after oiling will be significantly different, which will affect the quality of use. At the same time, the ...

AI Technical Summary

Problems solved by technology

[0003] During wood processing and production, due to the different shades of color difference between the wood raw materials of the same tree species, the color of the wood products after oiling will be significantly different, which will affect the quality of use. At the same time, the existing treatment process is only for the surface of the wood treatment, the penetration is poor, and if you want to deepen the treatment effect and speed, you need higher material costs and equipment costs. Therefore, the present invention proposes a wood color difference bleaching and desalination treatment process to solve the problems existing in the prior art

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