Effect of microbial transglutaminase on dyeing properties of natural dyes on wool fabric |
| |
Authors: | Li Cui Guocheng Du Qiang Wang Ping Wang Xuerong Fan |
| |
Affiliation: | 1. Key Laboratory of Science and Technology of Eco-Textile, Ministry of Education, China;2. Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, China;3. Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, China |
| |
Abstract: | The dyeing properties of three natural dyes – curcumin, gardenia yellow and lac dye – on wool fabric after treatment with microbial transglutaminase (MTGase) have been investigated. After 120 min of MTGase treatment, compared with the fabric only pretreated with chemical and protease, the colour strength of curcumin, gardenia yellow and lac dye increased from 8±0.13, 7.5±0.10 and 22±0.12 to about 12.8±0.20, 11.7±0.20 and 27.0±0.41, respectively. The values of wash fastness for dyed wool fabrics increased from 2 to 4 after MTGase treatment, but the light fastness was not obviously improved. By comparing with mordant dyeing, although the colour strength was poorer, MTGase after-treatment did not cause colour shade changes during dyeing and the wash fastness of dyed wool fabric was similar to that of the pre-mordanted samples. |
| |
Keywords: | Microbial transglutaminase wool fabric natural dye dyeing property |
|
|