纺织学报 ›› 2010, Vol. 31 ›› Issue (12): 64-69.

• 染整与化学品 • 上一篇    下一篇

羊毛DCCA-蛋白酶法防毡缩工艺的改进

胡生荣1;纪惠军2;王强1;范雪荣1;王平1   

  1. 1. 江南大学 2. 陕西纺织服装职业技术学院
  • 收稿日期:2009-12-23 修回日期:2010-04-08 出版日期:2010-12-15 发布日期:2010-12-15
  • 通讯作者: 范雪荣

Improving DCCA-protease process for antifelting of wool

HU Shengrong1;JI Huijin2;WANG Qiang1;FAN Xuerong1;WANG Ping   

  1. 1.Jiangnan University 2.Shanxi Textile and Garment Institute
  • Received:2009-12-23 Revised:2010-04-08 Online:2010-12-15 Published:2010-12-15

摘要:

为降低现行氯化预处理-蛋白酶处理羊毛防毡缩工艺中DCCA对环境的影响,通过对比高DCCA-低蛋白酶的现行工艺(3.5%(o.w.f)DCCA+0.7%(o.w.f)蛋白酶)和低DCCA-高蛋白酶的改进工艺(1%(o.w.f)DCCA+2.5%(o.w.f)蛋白酶)对羊毛防毡缩性能、润湿性能和断裂强度的影响,研究了降低DCCA用量的可行性;并通过蛋白质溶落速度、减量率以及扫描电镜测试,研究了改进工艺对羊毛织物的防缩机制。结果显示:羊毛经过改进工艺处理后,仍然能够达到机可洗的效果,润湿性能也有显著提高,而强力损伤则明显小于现行工艺;水解液中蛋白质浓度的变化表明较低浓度的DCCA预处理即可使蛋白质溶落速度快速增加,从而导致减量率提高;SEM结果也证实了改进工艺对鳞片具有较好的剥离效果。

Abstract:

In order to reduce the effect of DCCA used in the chloride-protease process for wool shrink-proofing on the environment, the feasibility of improving the antifelting process for wool by lowering the dosage of DCCA has been studied through comparing current high DCCA-low protease process(3.5%(o.w.f) DCCA+0.7%(o.w.f) Protease) and modified low DCCA-high protease process(1%(o.w.f)DCCA+2.5%(o.w.f)Protease)in terms of shrinkage, wettabiliaty and break strength. In addition, according to the results of protein release efficiency, weight loss and SEM examination, the mechanism of the modified process was further analyzed. It is shown that the wool treated with modified process is also machine-washable. Meanwhile, better wettability, and less fiber damage when compared with the current process. The result of the concentration of hydrolyzed proteins as a function of time shows that the pretreatment of low DCCA can produce a rapid increase in protein release, causing an increase in the weight loss. SEM images indicate that the modified process can well strip the scales of wool.

中图分类号: 

  • TS195.6
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