V.35,no.4,Dec 2023 https://doi.org/10.5764/TCF. Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2016 / V.28,no.4,Dec Title Effect of Color Developing by Heat Treatment on Cotton Fabrics Dyed with Catechu Extract Authors Soo Jung Lee and Jeong Dae Jang* Institution/Affiliations Pusan National University Pages/Total page pp.299 ~ 307 / 9 Language Korean Abstract In order to clarify the availability of heat treatment for catechu dyeing, effect of color developing by heating process on cotton fabrics dyed with catechu extract was investigated. Dyed fabrics were heated various time(min) at 150℃. The cases of nonmordanting and mordanting were compared, and examined the effect of sodium acetate as an agent to promote the color developing to fabrics. Experiments with after-mordanting method showed that various colors can be obtained using catechu. K/S values of dyed fabrics with Al, Cu, Fe mordant were higher than the case of no mordant. The fabric by Cu mordanting showed 3 times to the case of no mordant. Fabrics dyed with catechu by mordanting lowered L*value while there was little change in a*, b*value as the heating process progressed. Therefore, K/S values were increased due to heating process. The effects of adding sodium acetate in dyeing bath on dyed fabrics were shown higher K/S values, and the L*values were lower than those without sodium acetate according to heating time increase. The result show sodium acetate had a promoting effect on the color developing to the fabrics by heating process, it was very effective. Keywords color developing, mordant, catechu, sodium acetate, heat treatment, cotton Download   Reference http://www.koreascience.or.kr/article/ArticleFullRecord.jsp?cn=OSGGBT_2016_v28n4_299&ordernum=