- Volume 5 Issue 4
A Study on Improvement of Fastness on Cotton-dyed Fabric by Aftertreatment with Copper Sulfate/Thiourea
황산구리/치오요소 후처리에 희한 직접염료의 견뢰도 증진에 관한 연구(II)
- Yoon, Jung Im (Department of Textile Engineering, Pusan National University Pusan) ;
- Kim, Kyung Hwan (Department of Textile Engineering, Pusan National University Pusan)
- Published : 1993.12.01
The Cotton fabric was dyed with various directd dyes, and then treated with copper sulfate or copper sulfate/thiourea. Munsell color system, dye exhaustion, tensile strength, light fastness, washing fastness and rubbing fastness were investigated for the treated fabrics. The results obtaind are as follows: 1. The color variation of the cotton-dyed fabric by aftertreatment with copper sulfate was shown redish, but original color with copper sulfate/thiourea. 2. Copper sulfate/thiourea was much more effective than copper sulfate only to increase the light fastness, washing fastness and rubbing fastness. 3. Dye exhaustion of the cotton-dyed fabric by aftertreatment with copper sulfate was decreased about 20% more than those of untreated. 4. Tensile stregth of cotton-dyed fabric by aftertreatment with copper sulfate/thiourea was decrease about 10% more than those of untreated.