A study on the Polygonum tinctoria natural dyeing of by glucose reduction 포도당 환원에 의한 쪽 천연염색에 관한 연구
pp.248-261
The conditions for minimizing dyes and additives when dyeing cellulose fibers such as linen, ramie, and hemp fabrics were obtained using glucose, an organic reducing agent. Dyeability and colorfastness were measured through repeated dyeing. The overall surface dyeing concentration followed the linen>hemp>ramie order, and most of the colors were in the range of PB (PurpleBlue). As the glucose concentration increased, the blue series was strengthened, and the color was dark and clear. It was determined that glucose the concentration of 4g/L was appropriate for minimizing the amount of dye. When the dyeing temperature was 30℃, the surface dyeing concentration was the highest, and the color was dark and clear. Although the dyeing concentration increased as NaOH concentration increased, 3g/L (pH 12.37) was considered appropriate for the minimum NaOH concentration, which becomes gradual after the dyeing concentration increased rapidly. It was found that the surface dyeing concentration, when repeated six times for 5 min, was better than that of dyeing once for 30 min. Washing, rubbing, and perspiration colorfastness were all found to be excellent in grades 4–4-5, and colorfastness to light was excellent in grades 5 of linen and hemp and grade 4 of ramie.
I. Introduction
Ⅱ. Experimental Procedure
1. Materials and reagent
2. Experimental method
3. Measurement and analysis
Ⅲ. Result and Discussion
1. Surface color and dyeability
2. Dyeing colorfastness
Ⅳ. Conclusion
References