Influence of dye solution pH value on dyeing effects and antibacterial properties of wool fabrics dyed with tea natural dye

被引：0

作者：

Ren, Yanfei ^{[1
,2
]}

Gong, Jixian ^{[1
,2
]}

Zhang, Jianfei ^{[1
,2
]}

Fu, Ranran ^{[1
]}

Wang, Fubang ^{[1
,2
]}

机构：

[1] School of Textiles, Tianjin Polytechnic University, Tianjin,300387, China

[2] Key Laboratory for Advanced Textile Composites, Ministry of Education, Tianjin Polytechnic University, Tianjin,300387, China

来源：

Fangzhi Xuebao/Journal of Textile Research | 2016年 / 37卷 / 11期

关键词：

Yarn; -; Alkalinity; Dyeing; Wool;

D O I：

10.13475/j.fzxb.20160200206

中图分类号：

学科分类号：

摘要：

Tieguanyin tea extract was used as natural dye to dye wool fabrics directly at pH values of 3.5, 5.5 (pH of original tea extract), 7.5 and 9.5. The antibacterial properties of dyed wool fabrics were studied. The results indicated that dye solution pH value has great influence on K/S value and color of wool fabrics. When the pH value of dye solution was 5.5, the dyed wool fabric exhibited the maximum K/S value. The dyed wool fabrics have good rubbing and washing fastness, but poor sunlight fastness. The fabrics became darker under light, and the effect of light decreased as dye solution pH value rise. When dye solution pH value was 5.5, the antibacterial rate of dyed wool fabrics to Escherichia coli and Staphylococcus aureus was highest, at 98.9% and 93.2%, respectively. The antibacterial rate decreased when dye solution was more acidic or alkaline, especially the dye solution was alkaline. © 2016, Periodical Agency of Journal of Textile Research. All right reserved.

引用

页码：86 / 91