Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2016 / V.28,no.3,Sept Title The Effects of the Pre-treatments with Proteins on Dyeing of Silk Fabric with Caesalpinia sappan Authors So Hee Hwang* and Jeong Dae Jang Institution/Affiliations Pusan National University Pages/Total page pp.208 ~ 218 / 11 Language Korean Abstract Abstract This study investigated the effects of the working mechanisms of proteins, mordants, and dyes, as well as the mordanting order, on dye uptake by silk fabric pretreated with proteins and dyed with freeze-dried sappan wood water extract. Soybean protein and sodium caseinate were used as the proteins. 1. When Al mordants were not used, the dyeability of the fabrics increased upon protein pre-treatment as compared to the case without treatment. 2. Dyeing with protein pre-treatment, followed by mordanting, led to the highest dye uptake, and the optimal protein concentration was 5%. 3. The K/S values slightly decreased with an increase in the dyeing temperature, and the fabric turned dark red in color when dyeing was carried out at increasing temperature. Fabrics showed the highest dye uptake at 40℃. 4. Regarding the effect of time, the K/S values of the fabrics with and without protein treatment showed almost no increase after the initial dyeing time of 10min; further, there was hardly any difference in the cases with and without protein pre-treatment. 5. In case of protein pre-treatment fabrics, the washing fastness was level 2. The dry cleaning fastness showed very excellent result with level 4-5. The rubbing fastness was better in dry rubbing than in wet rubbing of the fabrics. For the light fastness, all dyed fabrics showed low fastness. Keywords Keywords caesalpinia sappan, protein pre-treatment, isolate soybean protein, sodium caseinate, freezing dry, K/S Download   Reference http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2016_v28n3_208&ordernum=