Dyeing of Mulberry Silk Using Binary Combination of Henna Leaves and Monkey Jack Bark

ABSTRACT

The present work deals with the dyeing of mulberry silk yarns with a mixture of two colorants extracted from Lawsonia inermis and Artocarpus lacucha. The dyes were extracted with acid, alkaline and neutral medium. Different proportions of the dye and metallic mordants were made and the dyeing was performed at 80°C with pre, post and meta mordanting techniques. The extent of dyeing was studied on the basis of K/S values. It was found that, the highest dye intensity was obtained when a mild alkaline medium was used for dye extraction. The highest color value was obseved for the combination of monkey jack dye mordanted with copper sulfate by the meta mordanting method. The color fastness properties were also found to be good. The phytochemical analysis of the selected dyes showed the presence of active components like saponins, glycosides, terpenoids and tannins, which was further confirmed by Fourier Transform Infrared Spectroscopy.

摘要

本文研究了用从Lawsonia inermis 和 Artocarpus lacucha 中提取的两种着色剂混合染色桑蚕丝。用酸性、碱性和中性介质提取染料. 制备了不同比例的染料和金属媒染剂，并采用前、后、后三种媒染剂工艺在80℃下进行染色. 以K/S值为基础，对染色程度进行了研究. 结果表明，用温和的碱性介质提取染料时，染料强度最高. 采用元媒染剂法，观察了猴杰克染料与硫酸铜媒染剂复配后的最高显色值. 染色牢度也很好. 对所选染料进行了植物化学分析，结果表明，染料中含有皂苷、苷、萜类和鞣质等活性成分，傅立叶变换红外光谱进一步证实了这一点.

KEYWORDS:

• Lawsonia inermis
• Artocarpus lacucha
• natural dyeing
• combination of dyes
• mordants
• phyochemical analysis

关键词:

• 天然染色
• 染料组合
• 媒染剂
• 理化分析