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蚕丝织物的诃子色素染色工艺

2017-10-15宋慧君高玉梅王明茹飞龙张宁

丝绸 2017年5期

宋慧君 高玉梅 王明 茹飞龙 张宁

摘要: 研究了染色工艺条件对蚕丝织物的诃子色素直接染色上染百分率的影响,以及媒染剂质量分数和染色方法对蚕丝织物表观色深的影响,测试最佳染色工艺条件下染色蚕丝织物的颜色特征和色牢度。结果表明,诃子色素直接染蚕丝织物的最佳工艺条件为pH4,保温染色温度85℃,保温染色时间40min;氯化铈、氯化镧、硫酸铝作媒染剂,最佳染色方法为后媒染色法,最佳质量分数为4%(o.w.f),浴比1︰50;氯化钙作媒染剂,最佳染色方法为同浴媒染法,最佳质量分数为2%(o.w.f),浴比1︰50。媒染剂影响织物的颜色特征值,媒染染色可提高染色蚕丝织物的色牢度,丰富染色织物的色谱。

关键词: 诃子色素;蚕丝;染色;媒染劑;上染百分率

中图分类号: TS193.2

文献标志码: A

文章编号: 10017003(2017)05000105

引用页码: 051101

Abstract: This paper studied the effect of dyeing conditions on dye uptake of terminalia chebula pigment for silk fabric, and the effect of mordant mass fraction and dyeing methods on the color of silk fabric. Besides, the color feature and color fastness of dyed silk fabric under the optimum dyeing process were tested. Results show that the optimum dyeing process for the direct dyeing of silk fabric with terminalia chebula pigment is as follows: pH value 4, dyeing temperature 85℃ and dyeing time 40min. Cerium chloride, lanthanum chloride and aluminum sulfate serve as the mordant, the optimum dyeing method is postmordant dyeing method, the optimal mass fraction is 4% (o.w.f), and liquor ratio is 1︰50. When calcium chloride is used as the mordant, the optimum dyeing method is one bath mordant method, the optimal mass fraction is 2% (o.w.f), and liquor ratio is 1︰50. The mordant can affect color character value of dyed silk fabric, and mordant dyeing can improve the color fastness and enrich colors of dyed silk fabric.

Key words: terminalia chebula pigment; silk; dyeing; mordant; dye uptake

隨着人们生活质量的提高,人们对纺织品的要求也越来越高,要求产品不仅能满足人们较高的审美要求,而且还要舒适、对人身体无害、绿色无污染,甚至希望纺织品有一定的保健功能[1]。在这种大背景下,人们对天然色素在纺织品上应用的兴趣越来越浓[23]。但天然色素染色存在色谱不全,拼色困难等缺点[45],因此需要开发更多种类的天然色素,以丰富天然色素染色产品的色谱。

诃子是使君子科植物诃子或绒毛诃子的果实,是中药的常用药。诃子含有鞣质、多酚、多糖、挥发油等化学成分[6],具有抑菌[7]、提高免疫力、抗肿瘤、保护心肌和肝脏、清除自由基等功效[8]。诃子色素是从诃子中提取的植物天然色素,诃子的主要色素成分也是诃子的活性成分,诃子色素染色可赋予织物一定的药物保健作用,此外诃子色素还具有一定的紫外线吸收性能,诃子色素染色织物具有良好的抗紫外线性能[9]。……

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