选择性氧化壳聚糖对真丝织物姜黄染色性能的影响  

Effect of selective oxidized chitosan on the dyeing properties of silk fabric dyed by turmeric

作　　者：王浩[1] 凌志华 胡显荣 饶娟[1] 赵敏[1] 

机构地区：[1]安徽农业大学轻纺工程与艺术学院,安徽合肥230036 [2]黄山蓝天方园实业有限公司,安徽黄山245000

出　　处：《印染助剂》2015年第10期41-44,共4页Textile Auxiliaries

基　　金：安徽农业大学青年科学基金重点项目(2012ZD08);黄山市重点科技计划项目(2013KG-06);国家级大学生创新训练项目(201310364011)

摘　　要：针对姜黄天然染料对真丝织物直接染色表面色深度(K/S值)低、染色牢度差的问题,利用壳聚糖与TEMPO-Na OCl-Na Br氧化体系制备选择性氧化壳聚糖改性剂对丝织物进行改性.与未经改性的真丝织物相比,经氧化壳聚糖改性织物的姜黄上染率明显提高,且随着壳聚糖氧化程度增加,改性真丝织物的姜黄上染率呈上升趋势.以姜黄改性真丝织物的上染率为指标,确定氧化壳聚糖对真丝织物最佳整理工艺为:氧化壳聚糖质量分数1%,温度65℃,时间1.5 h,浴比1∶50.经氧化壳聚糖改性的真丝织物具有良好的K/S值和染色牢度.Aiming at problems of low color depth （K/S value） and poor color fastness of silk fabric directly dyed with natural dye turmeric, the modification agent of selective oxidized chitosan was prepared from chito- san and TEMPO-NaOCI-NaBr oxidation system and applied to modify silk fabric. Compared with untreated silk fabric, the dye-uptake of silk fabric dyed with turmeric was increased remarkably after treated with oxi- dized chitosan. And with increasing the oxidation degree of chitosan, the dye-uptake of the treated silk fabric dyed with turmeric increased constantly. Based on the dye-uptake of treated silk fabric dyed with turmeric, the optimum modification process of silk fabric treated with oxidized chitosan was determined： the mass frac- tion of oxidized chitosan 1%, reacted at 65 ℃ for 1.5 h, the liquor ratio 1 ： 50. The silk fabric treated with oxi- dized chitosan had good K/S value and color fastness.

关 键 词：壳聚糖 TEMPO-NaOCl-NaBr氧化体系 真丝织物 姜黄 染色性能 

分 类 号：TQ314[化学工程—高聚物工业]