纺织学报 ›› 2021, Vol. 42 ›› Issue (09): 97-103.doi: 10.13475/j.fzxb.20201001307

• 染整与化学品 • 上一篇    下一篇

催化氧化皂洗在涤纶/棉织物一浴染色中的应用

张帆1, 张国波1, 赵宇新1, 张儒1, 阳海1, 王世豪2, 汪南方1()   

  1. 1.湖南工程学院 环境催化与废弃物再生化湖南省重点实验室, 湖南 湘潭 411104
    2.湖南省益阳市桃江县武潭镇人民政府, 湖南 益阳 413407
  • 收稿日期:2020-10-07 修回日期:2021-06-02 出版日期:2021-09-15 发布日期:2021-09-27
  • 通讯作者: 汪南方
  • 作者简介:张帆(1981—),男,讲师,博士。主要研究方向为功能性纺织助剂的开发与应用。
  • 基金资助:
    湖南省教育厅科学研究项目(19B128);国家自然科学基金项目(81874332);湖南省自然科学基金杰出青年项目(2020JJ2012);湖南省科技托举人才工程项目(2020TJ-Q12)

Application of catalytic oxidative soaping for polyester/cotton fabric dyeing in one bath

ZHANG Fan1, ZHANG Guobo1, ZHAO Yuxin1, ZHANG Ru1, YANG Hai1, WANG Shihao2, WANG Nanfang1()   

  1. 1. Hunan Provincial Key Laboratory of Environmental Catalysis & Waste Recycling, Hunan Institute of Engineering, Xiangtan, Hunan 411104, China
    2. Peolpe's Government of Wutan Town in Taojiang County, Yiyang, Hunan 413407, China
  • Received:2020-10-07 Revised:2021-06-02 Published:2021-09-15 Online:2021-09-27
  • Contact: WANG Nanfang

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摘要：

为提高涤纶/棉织物一浴染色的色牢度和节能减排的水平,开发了一种金属配合物/H2O2催化氧化技术用于涤纶/棉针织物一浴法染色后的皂洗工艺。利用理论计算和皂洗实验研究了柠檬酸亚铁和柠檬酸锰2个配合物的催化活性,采用单因素和正交试验探讨了配合物催化氧化皂洗工艺对脱色率和织物表观色深度K/S值的影响,对比研究了催化氧化皂洗与免还原清洗工艺的综合性能。得到最佳的皂洗工艺:1.0%柠檬酸亚铁 1.0 g/L,30%H2O2 3.3 g/L,皂洗温度 85 ℃,皂洗时间 25 min,浴比1:20。结果表明:柠檬酸亚铁具有更高的催化活性和更高的脱色率;催化氧化皂洗的织物各项色牢度(大于4级)优于免还原清洗工艺,残液毒性低,节水节能效果显著,对发展涤纶/棉织物染色的清洁生产具有重要意义。

关键词: 涤纶/棉织物, 一浴法染色, 金属配合物, 过氧化氢, 催化氧化, 皂洗

Abstract:

In order to increase color fastnesses of the polyester/cotton fabrics dyed by one bath method and promote energy conservation and emission reduction, a novel method of catalytic oxidation based on a metal complex/H2O2 system was introduced into the soaping process of the one bath dyeing of the polyester/cotton fabrics. The complex catalytic activities of Fe(II) citrate and Mn(II) citrate were investigated by using theoretical calculation and soaping experiment. The influence of soaping process parameters on properties of decolorization and K/S value was studied. The comparative experiment was used for valuating the catalytic oxidative soaping and the reduction free cleaning. The optimal catalytic oxidative soaping process was found to be 1.0% Fe(II) citrate complex with 1.0 g/L concentration, and 30% H2O2 with 3.3 g/L concentration, and soaping at 85 ℃ for 25 min. The results show that the catalytic activity soaping performance of Fe(II) citrate complex is higher than that of Mn(II) citrate complex. Compared to the reduction free cleaning, the catalytic oxidative soaping has better wet color fastnesses (over grade 4) with an outstanding ability of decolorizing the dyeing effluent and reducing its toxicity and a prominent potential of energy conservation and emission reduction. The study is helpful for promoting cleaner dyeing production of polyester/cotton fabrics.

Key words: polyester/cotton fabrics, one-bath dyeing, metal complex, hydrogen peroxide, catalytic oxidation, soaping

中图分类号: 

  • TS193.5

表1

反应中配合物的吉布斯能量变化ΔG及中心离子电荷值q的理论计算"

催化剂 配合物 G/(kJ·mol-1) q ΔG/(kJ·mol-1)
PM6 B3LYP/Lanl2dz PM6 B3LYP/Lanl2dz PM6 B3LYP/Lanl2dz
1# [Fe(II)Cit(H2O)3]- -2 088.589 7 -2 914 043.730 3 +1.059 +1.329 394.190 8 157.904 0
[Fe(III)Cit(H2O)3] -1 694.398 9 -2 913 885.826 3 +1.353 +1.392
2# [Mn(II)Cit(H2O)3]- -2 125.059 7 -2 863 251.108 4 +0.672 +1.251 411.859 2 512.794 5
[Mn(III)Cit(H2O)3] -1 713.200 5 -2 862 738.313 9 +1.245 +1.213

表2

催化剂种类对皂洗后织物的K/S值和脱色率的影响"

组别 催化剂编号 K/S值 脱色率/%
黄组 1# 12.016 0 25.9
2# 12.304 0 13.6
红组 1# 9.542 6 25.0
2# 9.779 2 14.3
蓝组 1# 21.925 27.0
2# 18.675 11.0

图1

催化剂浓度对溶液脱色率和织物K/S值的影响"

图2

H2O2质量浓度对溶液脱色率和织物K/S值的影响"

图3

皂洗温度对溶液脱色率和织物K/S值的影响"

图4

升温速率对溶液脱色率和织物K/S值的影响"

图5

皂洗时间对溶液脱色率和织物K/S值的影响"

表3

黄组催化氧化皂洗的正交试验因素水平表"

水平 A/(g·L-1) B/(g·L-1) C/℃ D/min
1 0.90 2.5 80 25
2 0.95 2.7 85 30
3 1.00 3.0 90 35
4 1.05 3.3 95 40

表4

黄组催化氧化皂洗的正交试验结果"

试验序号 A B C D 织物
K/S值		 残液脱
色率/%
1 1 1 1 1 9.163 85.5
2 1 2 2 2 9.109 86.3
3 1 3 3 3 9.075 86.6
4 1 4 4 4 9.007 87.0
5 2 1 2 3 9.143 85.7
6 2 2 1 4 9.125 86.3
7 2 3 4 1 9.084 86.7
8 2 4 3 2 9.032 87.1
9 3 1 3 4 9.132 86.0
10 3 2 4 3 9.121 86.4
11 3 3 1 2 9.118 86.8
12 3 4 2 1 9.083 87.5
13 4 1 4 2 9.145 86.1
14 4 2 3 1 9.130 86.3
15 4 3 2 4 9.113 87.2
16 4 4 1 3 9.051 87.3
残液
脱色率		 K1 86.350 85.825 86.475 86.525
K2 86.450 86.325 86.700 86.575
K3 86.700 86.825 86.500 86.500
K4 86.725 87.250 86.550 86.625
R 0.375 1.425 0.225 0.125
织物
K/S值		 K1 9.088 50 9.145 75 9.114 25 9.115 00
K2 9.096 00 9.121 25 9.112 00 9.101 00
K3 9.113 50 9.097 5 9.092 25 9.097 50
K4 9.109 75 9.043 25 9.089 25 9.094 25
R 0.025 0.102 5 0.025 0.020 75

表5

催化氧化皂洗和免还原清洗对涤纶/棉织物染色性能的影响"

聚酯 组别 K/S值 顶破强力/N 耐摩擦色牢度/级 耐皂洗色牢度/级
干 湿 变色 沾色
棉
催化氧化皂洗 黄组 8.452 3 527.8 5 4 5 4 4
红组 9.216 1 546.8 5 4~5 5 4~5 4~5
蓝组 18.696 3 562.3 5 4 5 4~5 4~5
免还原清洗 黄组 8.515 4 538.9 4 3~4 4 3 3~4
红组 9.301 1 559.2 4 4 4 3~4 3~4
蓝组 18.804 2 574.8 4 3 4 3 3

表6

毒性比较"

工艺 发光菌存活数
皂洗前 皂洗后
催化氧化皂洗 35 21
免还原清洗 44 650
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