苎麻纤维脱胶及染色工艺研究

Research on Degumming and Dyeing Process of Ramie Fiber

利用高效精练剂SB-3结合NaOH和H_2O_2对原生苎麻进行脱胶处理,优化了苎麻纤维的脱胶工艺,并探讨了苎麻纤维脱胶-染色短流程工艺。结果表明,脱胶最佳工艺为:原生苎麻先用1.5g/L H_2SO_4在50℃浸渍处理1h,再用5g/L高效精练剂SB-3、2g/L NaOH、8g/L H_2O_2在80℃处理80min。原生苎麻纤维脱胶完成后,加入少量除氧酶进行一道水洗,直接用活性染料染色,发现其染色性能与脱胶后充分水洗染色的效果相当,既缩短了流程,又减少了能耗。

Degumming treatment of ramie fiber was carried out by using high-efficiency scouring agent SB-3, NaOH and H2 02. The degumming process of ramie fiber was optimized. The short-flow process of degumming and dyeing of ramie fiber was studied. The optimum process condition was as follows： ramie fiber was pretreated with 1.5 g/L H2SO4 at 50 ℃ for 1 h, then scoured with 5 g/L SB-3, 2 g/L NaOH and 8 g/L H2O2 at 80 ℃ for 80 min After the degumming process of the original ramie fiber, little deoxidizing enzyme was added to take one step wash, the degummed ramie fiber was dyed with reactive dyes directly. Compared with the process of dyeing after degumming and adequate washing, it was found that two processes had similar dyeing properties. And the short-flow process could shorten the process and reduce energy consumption.