I-214杨染色单板光变色规律的研究  

Studies on the Lightfastness of Dyed Veneer of I-214 Poplar

作　　者：周宇[1] 王金林[1] 李春生[1] 

机构地区：[1]中国林业科学研究院木材工业研究所,北京100091

出　　处：《林业科学》2006年第3期29-34,共6页Scientia Silvae Sinicae

基　　金：国家863计划课题"木基复合装饰材料制造技术"(2002AA245101);国家科技攻关计划子课题"木材功能性改良新技术"(2002BA515B0703);中日合作项目(JICA)"中国人工林木材研究"中"木材的染色性和染色木材的耐光性"课题的一部分

摘　　要：以染料弱酸深蓝5R和活性艳红X-3B染色的I-214杨素材和漂白板为试材,选用氙光作照射光源,考察不同染料、不同工艺条件下染色单板在110h光照过程中试材表面材色指数,即明度指数(L*),色度指数(a*与b*)和变色度(ΔE*ab)的变化。结果表明:染色单板在110h氙光照射过程中变色明显,b*值提高显著;ΔE*ab在光照初期大,后期平缓直到不变;同一品种染料,高浓度染液中染色单板比低浓度染液的光照变色大,浸染时间长短对染色单板光照变色影响不明显,先漂白再染色的单板材色均匀,光照变色平缓;不同品种染料的染色单板光照变色规律有差异。The color change of veneers dyed by solution of Acid Blue 5R and Reactive Red X-3B after Xenon-lamp attenuation tests（110 h） is evident. During it had been being irradiated the color index （lightness L^＊ , the chromaticity coordinates a^＊ and b^＊ ） had a large change, especial the change of b^＊ is increasing rapidly, the change of the color difference （△E^＊ ab） in the early period is far more than that in the middle and later period. The color change degree of veneers dyed by solution of higher concentration is larger than that of lower dye solution, the color change degree of bleached veneers dyed by solution is more than veneers dyed directly. The relation of the color change degree and dyeing time is not evident. It is difference that the law of color change veneers dyed by different dyes with Xenon-lamp attenuation.

关 键 词：I-214杨 染色单板 氙光 光变色 

分 类 号：S781.3[农业科学—木材科学与技术]