羊毛纤维超临界CO_(2)生物酶清洗工艺  

Supercritical CO_(2)enzyme washing process of wool fibers

作　　者：张娟 ZHANG Juan(Liaoning Vocational College of Light Industry,Dalian 116100,Liaoning,China)

机构地区：[1]辽宁轻工职业学院,辽宁大连116100

出　　处：《上海纺织科技》2023年第9期60-62,共3页Shanghai Textile Science & Technology

基　　金：辽宁轻工职业学院校级协同创新中心项目;辽宁省教育厅2021年科学研究经费项目(LJKZ1325)。

摘　　要：为了解决羊毛纤维清洗工序繁多、能耗大、水污染严重等问题,采用超临界CO_(2)代替水介质,以中性蛋白酶溶液为清洗剂,探讨了不同中性蛋白酶质量分数、温度、压力和时间对羊毛纤维白度、残脂率和拉伸性能的影响。试验得到较优的清洗工艺条件为:中性蛋白酶质量分数4%、温度45℃、压力15MPa和时间90min。在该工艺条件下,清洗后羊毛纤维的白度值达到56,残脂率降低到3.7%,但断裂强力和断裂伸长率在一定范围内略有降低.In order to solve the problems of numerous washing procedures,high energy consumption,and serious water pollution in wool fiber washing process,supercritical CO_(2)is used instead of water medium,and neutral protease solution is used as the cleaning agent in washing process.The effects of amount of neutral protease,temperature,pressure and time on whiteness,the residual fat rate and tensile testing of wool fiber are investigated.The optimal supercritical CO_(2) washing process is obtained:neutral protease mass fraction 4%,washing at 45℃for 90 min with pressure of 15 MPa.Under this process condition,the whiteness of washed wool fiber reaches 56,the residual fat rate reduces to 3.7%,but the breaking strength and elongation at break slightly decreases within a certain range.

关 键 词：羊毛纤维 超临界CO_(2) 中性蛋白酶 清洗 白度 残脂率 

分 类 号：TS131.8[轻工技术与工程—纺织材料与纺织品设计]