Veneer dyeing can improve wood visual characteristics and imitatethe color and luster of precious wood species , to increase the decorative effect . the veneers of hardwood species such as % populus tomentosa , paulownia elongata % were adopted to make dyeing experiments by using acid dyestuff . the result shows : the acid dyestuff in textile industry could be used in wood dyeing process . compound dyeing can be adopted by using the mixture of several kinds of dyestuff . the different treatment methods before the wood was dyed affects the dyeing effect of wood . there is a great difference in the deformed degree of dyeing veneers , smooth level has a relation with wood density . the density of dyestuff , dyeing time and dyeing temperature and so on have many influences on dyeing effect . different technological process has been used in veneers of different wood speicies 木材单板染色有利于改善木材视觉特性，可以实现模仿珍贵树种木材的色泽，提高装饰效果.该研究选取毛白杨和泡桐等阔叶树种木材单板采用酸性染料进行染色实验，结果表明：纺织工业用酸性染料可用于木材染色，也可以采用几种染料混合复合染色；木材染色前的不同处理方法影响木材的染色效果；染色单板的变形程度有较大差异，平整度与木材密度相关；染料浓度、染色时间和染色温度等对染色效果有较大的影响，不同树种单板应采用不同工艺
