纺织学报 ›› 2019, Vol. 40 ›› Issue (11): 75-80.doi: 10.13475/j.fzxb.20180800907

• 纺织工程 • 上一篇    下一篇

废旧毛/丝/棉混纺面料的组分分析及其剥色工艺

涂莉, 孟家光(), 李欣, 李娟子   

  1. 西安工程大学 纺织科学与工程学院, 陕西 西安 710048
  • 收稿日期:2018-08-03 修回日期:2019-08-09 出版日期:2019-11-15 发布日期:2019-11-26
  • 通讯作者: 孟家光
  • 作者简介:涂莉(1996—),女,硕士生。主要研究方向为纺织新材料新。
  • 基金资助:
    国家科技支撑计划项目(2012BAF13B03);陕西省科技统筹创新工程项目(2014SZS13-Z01)

Composition analysis and stripping process of waste wool/silk/cotton blended fabric

TU Li, MENG Jiaguang(), LI Xin, LI Juanzi   

  1. College of Textile Science and Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China
  • Received:2018-08-03 Revised:2019-08-09 Online:2019-11-15 Published:2019-11-26
  • Contact: MENG Jiaguang

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摘要：

为提高废旧纺织品的利用率,同时降低染料对回收方法和回收工艺的影响,分析了废旧混纺面料的组分,并采用H2O2/柠檬酸体系对面料进行剥色处理,通过单因素法优化剥色工艺,探讨了H2O2、柠檬酸、Na2SiO3、JFC质量浓度以及pH值、温度、时间等参数对面料白度和断裂强力的影响。结果表明:废旧混纺面料由羊毛、蚕丝和棉组成,且棉、丝、毛的混纺比为75/20/5;最优剥色工艺条件为:H2O2质量浓度10 g/L,柠檬酸质量浓度2 g/L,pH值6,温度80 ℃,时间80 min,Na2SiO3质量浓度1.2 g/L,JFC质量浓度2 g/L,浴比1∶40;在最优剥色工艺条件下,废旧毛/丝/棉混纺面料的白度为54.27%,断裂强力为410.17 cN。

关键词: 废旧纺织品, 面料组分, 羊毛, 蚕丝, 棉, 混纺比, 剥色工艺

Abstract:

In order to improve the utilization rate of waste textiles and reduce the influence of dyes on recycling methods and processes, the compositions of waste blended fabrics were analyzed. The fabric was stripped by an hydrogen peroxide/citric acid system. The stripping process was optimized by a single factor method. The influences of hydrogen peroxide mass concentration, citric acid mass concentration, sodium silicate mass concentration, JFC mass concentration, pH value, temperature, time and other parameters on the whiteness and breaking strength of the fabric were discussed. The results show that the waste blended fabric consists of wool, silk and cotton, and the blending ratio of cotton to silk to wool is 75/20/5. The optimum stripping process is hydrogen peroxide mass concentration of 10 g/L, citric acid mass concentration of 2 g/L, pH value of 6, temperature of 80 ℃, time of 80 min, sodium silicate mass concentration of 1.2 g/L, JFC mass concentration of 2 g/L, and bath ratio of 1∶40. Under the conditions of optimal stripping process, the whiteness of waste wool/silk/cotton blended fabric is 54.27%, and the breaking strength is 410.17 cN.

Key words: waste textiles, fabric composition, wool, silk, cotton, blending ratio, stripping process

中图分类号: 

  • TS199

图1

废旧毛/丝/棉混纺面料经、纬向扫描电镜照片(×2 000)"

表1

废旧毛/丝/棉混纺面料三组分测定结果"

试样序号 毛/丝/棉混纺比
1 0.748/0.210/0.042
2 0.741/0.215/0.044
3 0.745/0.206/0.049
4 0.751/0.207/0.042
5 0.743/0.198/0.059

图2

H2O2质量浓度对混纺面料白度和断裂强力的影响"

图3

柠檬酸质量浓度对混纺面料白度和断裂强力的影响"

图4

pH值对混纺面料白度和断裂强力的影响"

图5

Na2SiO3质量浓度对混纺面料白度和断裂强力的影响"

图6

JFC质量浓度对混纺面料白度和断裂强力的影响"

图7

温度对混纺面料白度和断裂强力的影响"

图8

时间对混纺面料白度和断裂强力的影响"

图9

废旧毛/丝/棉混纺面料剥色前、后的实物图"

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