Studies on dyeing process variables for application of Tesu (Butea monosperma) as natural dye on silk fabric

ABSTRACT

A scientific study on natural dyeing of silk using an environment-friendly mordant (potash alum) has been undertaken to standardize extraction procedure, mordant concentration, and dyeing conditions for Tesu flower petals. Degummed and potash alum pre-mordanted silk fabric has been dyed using aqueous extract of Tesu (Butea monosperma). The effect of varying conditions of extraction and dyeing process variables on the surface color strength and color-related parameters apart from different color fastness properties of the dyed fabric have been standardized. The optimized conditions for dyeing pre-mordanted silk with aqueous extract of Tesu flower petals is 40% dye concentration, material to liquor ratio (MLR) 1:20, pH 4, time 60 min, temperature 60°C, and salt concentration 10 gpl.

摘要

科学研究的天然真丝染色使用环境友好的媒介（明矾）已着手规范提取程序，媒染剂浓度和染色条件特速的花瓣。脱胶和明矾预媒染的真丝织物染色已经用特速水提取物（紫铆单精子）。不同染色条件和染色工艺变量对染色织物的表面颜色强度和颜色相关参数的影响，已被区别于染色织物的不同色牢度性能。用特速花瓣提取物预媒染染色丝绸的最佳条件为40%的染料浓度，MLR（材料白酒类比）1:20，pH值4，时间60分钟，温度–60°C和盐浓度10 GPL。

KEYWORDS:

• CDI values
• dyeing process variable
• fastness properties
• mordanting
• natural dye
• potash alum
• silk
• Tesu

关键词:

• 值
• 染色工艺变量
• 色牢度性能
• 媒染
• 天然染料
• 钾明矾
• 特速