Dye Extraction and Silk Dyeing of Rubia Cordifolia Using Solvents
용제를 사용한 Rubia cordifolia의 색소 추출 및 Silk 염색

Jee Young Lim, Jeong Dae Jang
2013 Journal of the Korean Society of Clothing and Textiles  
Rubia cordifolia L (Indian madder) contains red color purpurin (65-67%) and yellow color munjistin (10-12%) as well as nordamncanthal (9-10%). Purpurin is a traditional red dye. The purpose of this research is to increase the dyeability of silk and light fastness of dyed silk fabric. We dyed silk fabrics after pretreatment to remove the yellow component of madder using various solvents such as ethyl acetate, ethanol, methanol, chloroform, and acetone. The total K/S value was the highest in the
more » ... the highest in the case of chloroform and reflectance was the lowest at the red color region from 470nm to 530nm. Chloroform dissolved the yellow color of Rubia cordifolia; in addition, we found that the total K/S value increased and the ∆E value decreased by chloroform pretreatment for silk dyeing.
doi:10.5850/jksct.2013.37.4.506 fatcat:xsmarui3mfgjjnbnmvito2axty