Eco-friendly Single Bath Dyeing and Ultraviolet Protective Finishing of Proteinous Fabric Using Loganin Derived Blue Dye

ABSTRACT

The present work mainly deals with the study of blue colored dye, synthesized from an iridoid glycoside loganin from strychnos fruits (Strychnos nux-vomica). The efficacy of synthesized blue dye was studied with proteinous fabric such as wool and silk using different types of mordants, namely, tannic acid, myrobalan, alum. The dyeing of fabric was carried out by techniques such as pre-mordanting, meta-mordanting, and post-mordanting. The color strength (K/S) of wool fabric was found to be higher in case of the meta-mordanting method using alum as a mordant as compared to pre and post-mordanting techniques. Treated fabrics showed adequate wash, light and rubbing properties with and without mordanting. The treated silk and wool fabric showed good to very good ultraviolet protection property with mordanted fabric. In vitro toxicity studies by hemolytic and phytotoxicity assay was performed to check for the safety of the dye as a colorant.

摘要

以马钱子果实为原料，以环烯醚萜苷洛格宁为原料合成蓝色染料.以羊毛、丝绸等蛋白质类织物为原料，采用鞣酸、杨梅、明矾等不同类型的媒染剂，研究了合成蓝色染料的效果.织物染色采用前、后、后三种方法进行.采用明矾作为媒染剂的复合媒染剂，羊毛织物的色强度（k/s）高于前、后两种媒染剂.经过处理的织物在有或无媒染剂的情况下表现出足够的洗涤、光照和摩擦性能.经处理后的真丝毛织物与媒染剂织物具有良好的紫外线防护性能.通过溶血和植物毒性试验进行体外毒性研究，以检查染料作为着色剂的安全性.

KEYWORDS:

• Dyeing
• mordants
• silk
• ultraviolet
• blue
• wool

关键词:

• 染色
• 媒染剂
• 丝绸
• 紫外线
• 蓝色
• 羊毛.