3种酸性染料对不同去色工艺处理的非洲白梧桐及桦木单板的染色效果

Study of Dyeing Effects of Three Acid Pigments on Triplochiton Sclexylon and Birch Veneers Decolorized by Different Decolorization Processes

为了提高低档木材的后续使用价值,对3种去色工艺处理得到的非洲白梧桐及桦木单板进行酸性染料染色实验,以色度参数为对比依据得出适用于酸性染料染色的去色工艺。实验结果表明染色后的过氧乙酸去色单板的明度值相对较高,并且在色度方面与其余两种传统去色工艺所得单板在染色后的色度方面相差不大,说明过氧乙酸去色工艺更加具有优势,既有利于后续的染色,又在视觉上又提高了染色后单板的明亮度与艳丽程度,以期为提高中低档木材的表面涂饰效果提供一定的参考。

In order to improve the subsequent application values of low-grade wood,three acid pigments were used as dyeing agents to dye the decolorized Triplochiton sclexylon and birch veneers under three decolorization processes.Based on the chromaticity parameters,the optimum decolorization process for acid pigments dyeing treatment was obtained.It was found that the lightness values of the peracetic acid decolorized veneers after dyeing was higher than that of the other two decolorized veneers,but the chroma of all the veneers was not significantly different.Peracetic acid decolorization process was the optimum decolorization process for the subsequent acid pigments dyeing treatment,and it also obviously improved the brightness and brilliance of the dyed veneers.