Veneer quality control Part 14:Study on Dyeing, Reinforcement and Dimensional Stability of Fast-growing Poplar
With the increasing demand for quality of life, decorative structural materials will be one of the development trends of wood-based panel industry in China in the future. However, in a long period of time, China will not only face the contradiction of insufficient total timber, but also the structural contradiction of products caused by the serious shortage of large diameter and precious natural timber. The modified poplar lumber can be made into high-quality fast-growing poplar decorative structural lumber with high strength, good stability and precious wood color, which can reduce the production cost and increase the added value of the lumber. The dyeing, strengthening and dimensional stability of fast-growing poplar wood were studied. Experiments show that the temperature of dye solution is the most important factor affecting dyeing and color fastness when the formulation, concentration and vacuum of dye solution are unchanged. Leveling solution can ease and adjust the fixing speed of dyes on wood and make the dyeing of all parts of wood as uniform as possible. It is one of the main factors affecting dye dyeing, but at the same time, it has a slight negative effect on color fastness. Face effect. A kind of
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