棉织物低温近中性一浴一步法练漂

doi:10.13475/j.fzxb.20180806008

纺织学报 ›› 2019, Vol. 40 ›› Issue (09): 83-90.doi: 10.13475/j.fzxb.20180806008

棉织物低温近中性一浴一步法练漂

张悦¹^,²^,³^,⁴, 胡丹玲¹^,², 任金娜¹^,², 李青¹^,²()

1.武汉纺织大学化学与化工学院, 湖北武汉 430200
2.武汉纺织大学生物质纤维与生态染整湖北省重点实验室, 湖北武汉 430200
3.苏州大学纺织与服装工程学院, 江苏苏州 215123
4.苏州大学现代丝绸国家工程实验室, 江苏苏州 215123

收稿日期:2018-08-23 修回日期:2019-05-03 出版日期:2019-09-15 发布日期:2019-09-23
通讯作者: 李青
作者简介:张悦(1996—),女,硕士生。主要研究方向为低温练漂技术的研发与应用。
基金资助:
生物质纤维与生态染整湖北省重点实验室开放课题(STRZ2017017);武汉纺织大学科技创新计划项目(183012)

Scouring and bleaching of cotton fabric by low temperature near neutrality one-bath one-step process

ZHANG Yue¹^,²^,³^,⁴, HU Danling¹^,², REN Jinna¹^,², LI Qing¹^,²()

1. School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, Hubei 430200, China
2. Hubei Key Laboratory of Biomass Fiber and Ecological Dyeing & Finishing, Wuhan Textile University, Wuhan, Hubei 430200, China
3. College of Textile and Clothing Engineering, Soochow University, Suzhou, Jiangsu 215123, China
4. National Engineering Laboratory for Modern Silk, Soochow University, Suzhou, Jiangsu 215123, China

Received:2018-08-23 Revised:2019-05-03 Online:2019-09-15 Published:2019-09-23
Contact: LI Qing

摘要/Abstract

摘要：

为实现基于生物酶的棉织物短流程前处理,构建出过硼酸钠/四乙酰乙二胺(SPB/TAED)低温活化体系,并将果胶酶与纤维素酶溶入该体系对棉织物进行同浴练漂。通过变量控制法分析了酶的种类与质量浓度、SPB与TAED的质量浓度、时间与温度对织物白度与毛效的影响,得到优化的一浴一步工艺:果胶酶、纤维素酶、SPB、TAED、渗透剂质量浓度分别为1、2、15、25、1 g/L,时间为60 min,温度为60 ℃。将此低温工艺与传统的高温(95 ℃)碱性(pH 值12~13)工艺进行对比,结果表明:前者节能优势明显;2种工艺条件下的练漂棉织物具有相当的白度、吸湿性、可染性,但低温练漂织物的强力明显较高,其表面更光滑且杂质较少。

关键词: 棉织物, 低温漂白, 生物精练, 生物酶, 一步法, 前处理

Abstract:

In order to achieve a short pretreatment utilizing bio-enzyme for cotton fabric, the low-temperature activated system based on sodium perborate/tetraethylenediamine (SPB/TAED) was established. At the same time, both cellulase and pectinase were added into SPB/TAED system. Influences of the type and dosage of bio-enzyme, dosage of SPB/TAED, process duration and temperature on whiteness index (WI) and capillary effect (CE) of the fabric were investigated by the variable-controlling method. It can be found that good compatibility exists between bio-scouring and SPB/TAED bleaching. An optimized process is obtained as follows: cellulase 1 g/L, pectinase 2 g/L, SPB 15 g/L, TAED 25 g/L, penetrating agent 1 g/L, duration of 60 min and temperature of 60 ℃. In comparison with the conventional process carried out at 95 ℃ using peroxide and strong alkali (pH 12-13), the optimized low-temperature process has an obvious advantage in saving energy. The WI, wettability and dyeability are similar for the fabrics pretreated by the low-temperature and conventional high-temperature process. The breaking force, however, treated by low-temperature process is higher, and the surface of such pretreated fabrics is smoother and cleaner.

Key words: cotton fabric, low-temperature bleaching, bio-scouring, bio-enzyme, one-step, pretreatment

中图分类号:

TS192.5

张悦, 胡丹玲, 任金娜, 李青. 棉织物低温近中性一浴一步法练漂[J]. 纺织学报, 2019, 40(09): 83-90.

ZHANG Yue, HU Danling, REN Jinna, LI Qing. Scouring and bleaching of cotton fabric by low temperature near neutrality one-bath one-step process[J]. Journal of Textile Research, 2019, 40(09): 83-90.

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工艺	白度/%	pH值		温度/℃	ΔQ/kJ
工艺	白度/%	练漂前	练漂后	温度/℃	ΔQ/kJ
A	81.91±0.17	9.18	5.87	60	6 318
B	82.97±1.60	13.05	12.81	95	13 689

试样编号	毛效/cm	铺展时间/s	断裂强力/(N·mm^-2)
试样编号	毛效/cm	铺展时间/s	经	纬
1	6.20±0.39	6.59±0.41	427.62	312.30
2	12.90±0.48	0.46±0.07	413.94	323.45
3	9.70±0.42	0.71±0.10	263.03	217.73

试样编号	E/%	F/%	C	K/S值	h/(°)	ΔE
1	52.76	7.05	35.82	2.93	209.68	5.92
2	70.17	28.77	38.79	2.72	216.72	0.52
3	66.71	26.31	38.61	2.64	217.35	-

棉织物低温近中性一浴一步法练漂

Scouring and bleaching of cotton fabric by low temperature near neutrality one-bath one-step process

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