柞木染色耐光色牢度的研究

Study on Color fastness to Light of Mongolian Dyeing

采用目测和色差计两种方法,对柞木的耐光色牢度进行试验。结果表明,染色柞木的耐光色牢度等级要好于未染色的柞木;未染色木材在处理15 h之前色差变化较快,而15 h后变色趋于平衡;染色木材色差变化较未染色木材缓慢,约在处理40 h左右变色趋于平衡;色差目测结果与用△E*ab公式计算结果差别较大,但与用△E00公式计算结果较接近,△E00公式计算结果更符合目测结果。

By using two methods of visual inspection and color difference meter, the color fastness to light of Mongolica was assessed. The results showed that the level of color fastness to light of dyed wood was better than non - dyeing; and the changing of color difference of non - dyeing was more quickly at the first 15 hours, and than became into balance. The changing of color difference of dyed wood was more slowly than non - dyeing, about 40 h later, it trended to balance. The results of visual inspection had very difference with the calculation of △ E·ab formula, but it was more close with △ E00.