染色竹材的耐光性研究及提高耐光性的方法.pdfVIP

西北林学院学报 2016 ， 3 1( 4): 275~278 Journal of Northwest Forestry University doi: 10. 3969/j. issn. 1001-746l. 2016. 04. 46 染色竹材的耐光性研究及提高耐光性的方法 汶录凤1 ，王玉梅2 ，吴华平2 ，孙芳利2 特 (l杨凌职业技术学院，陕西杨陵 712100 ;2. 浙江农林大学工程学院，浙江临安 311300 ) 摘 要:染色材己广泛应用于竹窗帘、竹工艺品、竹地板和竹家具等领域。但是，染色材在应用过程 中易受光照影响而褪色和变色，特别是紫外光。以 4 年生新鲜毛竹为试验材料，对常用染料染色材 耐光性进行研究，并采用添加紫外线吸收剂、壳聚糖前处理竹材等方式探索提高染色竹材耐光性。 结果表明，所选染料中，酸性染料染色材的耐光性最好，大多数染料的染色材在光照下明度变化最 小，红绿轴色品指数变化最大;紫外线吸收剂或者壳聚糖前处理均能提高活性染料和酸性染料染色 材的耐尤性，后者的效果优于前者，对酸性染料，t:，E 降到 5 以下，但 2 种方式对碱性染料和分散染 料作用不明显;壳聚糖前处理与紫外线吸收剂相结合对染色材耐光性的作用较 2 种方式单独处理 效果差。 关键词:竹材;耐光性;紫外线吸收剂;壳聚糖前处理 中固分类号:S78 1. 61 文献标志码:A 文章编号:1001-7461(2016)04-0275-04 A Study on Light Fastness of Dyed Bamboo Wood and its Improvement WEN Lu-feng1 , WANG Yu-mei2 ,WU Hua-ping2 , SUN Fang-li2 提 (1. Yangling Vocational and Technical College , Yangling ,Shaanxi 712100 , China; 2. School 01 Engineering ,Zhejiang AF University ,Linan ,Zhejiang 311300 , China) Abstract: Dyed bamboo timber has been widely used as a material for curtains ,crafts ,floors and furniture. However ,it is easy to lose its dyed color under light ,especially under ultra-violet light. Taking the timber from 今year-old fresh bamboo as material , the light fastness of the conventional dyes were examined , the methods of pre-treatment were investigated , such as adding ultra-violet absorbent in the dyes ,or treating the timber with chitosan before dying. The results indicated that bamboo timber treated with acidic dyes showed the best light fastness. Among the three color parameters , the brightness of dyed bamboo after light irradiation varied slightly. The red-green axis chromaticity index exhibited the biggest variation. Both ultra-v