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Effect of Reducing Agent, Sodium Hydrosulfite on the Natural Indigo Dyeing of Silk Fabric  

정인모 (농업과학기술원 잠사곤충부)
우순옥 (농업과학기술원 잠사곤충부)
Publication Information
Journal of Sericultural and Entomological Science / v.44, no.2, 2002 , pp. 93-98 More about this Journal
Abstract
Effect of reducing agent sodium hydrosulfite on the natural indigo on the silk fabrics were examined to improve traditional dyeing method. K/S values of dyed fabrics was monitored with various dyeing temperature time, amount of dye and reducing agent. The dyeability of silk fabrics was improved by using reducing agent, sodium hydrosulfite; K/S value (7.20) was higher then that (1.09) of traditional method at the frist dyeing. Natural indigo dye extracted from dyed silk fabrics are composed of isomer, indigo (67.3%) and indirubin (32.5%). However, silk fabrics showed excellent anti-microbial activity regardless of the dyeing methods.
Keywords
indigo dye; silk fabrics; reducing agent; sodium hydrosulfite; antimicrobial activity;
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