膨润土负载壳聚糖在活性染色净洗中的应用  

Application of bentonite-supported chitosan to rinsing after reactive dyeing

作　　者：薛旭婷[1] 李玲[1] 何瑾馨[1] 

机构地区：[1]东华大学化学化工与生物工程学院纺织面料技术教育部重点实验室,上海201620

出　　处：《印染》2009年第1期1-4,共4页China Dyeing and Finishing

摘　　要：以天然钙基膨润土为原料负载壳聚糖,制备一种复合吸附剂,并将其用于活性翠蓝KN-G染色棉织物的净洗。对膨润土负载壳聚糖进行了X射线衍射和红外光谱分析,考察了负载壳聚糖对净洗性能的影响。结果表明,壳聚糖与膨润土的较佳质量比为1:5,壳聚糖的脱乙酰度为90%,分子质量为100kDa;净洗后的活性染料染色织物皂洗牢度可达到常规净洗剂的净洗效果,而净洗残液的吸光度值和CODCr值仅为常规的1/10。Composite absorbent was prepared by loading chitosan on raw material natural Ca-bentonite, and it was applied to rinsing of cotton fabric dyed with reactive Turquoise Blue KN-G. The structure of bentonite-supported chitosan was characterized by XRD and IR, and its influence on rinsing effectiveness was studied. Results showed that, the optimum weight ratio of chitosan to bentonite was 1 ： 5, DD （ degree of deacetylation） of chitosan was 90%, and Mw （ molecular weights） was 100 kDa; cotton fabric rinsed with composite absorbent could obtain the same rinsing effectiveness as that of conventional rinsing, meanwhile the residual rinsing liquor had 1/10 absorbance and CODCrvalues of conventional ones.

关 键 词：染色 活性染料 洗涤 棉织物 

分 类 号：TS193.6[轻工技术与工程—纺织化学与染整工程]