천연 초란각액 처리와 천연매염이 Madder로 염색한 견직물의 염색성과 견뢰도에 미치는 영향

Abstract

The concept of sustainability and being "green" have attracted worldwide attention. This study intends to develope an eco-friendly textiles by investigating how the natural chorangak liquid treatment and the natural mordanting affected the changes of dyeability and colorfastness of silk fabrics dyed with Madder. The natural chorangak liquid treatment was done at 90℃ for 90mins with 25% conc. after degumming. The change of the natural mordanting composed of rice staw was varied with time intervals (2mins, 4mins, 6mins) at 60℃ under the conditions of both pre-mordant and post-mordant methods. The liquid ratio is 1:200 in this condition. The results were as follows:1) The K/S values of silk fabrics treated with the chorangak liquid showed higher than those of untreated silk fabrics in all dyeing time. Both K/S values of untreated and treated silk fabrics increase with the passing of time. The silk fabric optimal dyeing with Madder can be achieved at 80℃ for 30mins after the natural chorangak liquid treatment. 2) After the natural chorangak liquid treatment of silk fabrics, the amount of color change of pre-mordant silk fabrics showed higher than those of post-mordant silk fabrics. The color change increased as time changed for both pre-mordant and post-mordant silk fabrics. Optimal dyeing with Madder of the silk fabrics treated with the chorangak liquid can be achieved in pre-mordanting at 60℃ for 6mins. 3) Just like untreated silk fabrics, the colorfastness to friction, perspiration, and dry cleaning of chorangak liquid treated pre-mordant silk fabrics dyed with Madder showed a high range from 4 to 5 without a little change.