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http://dx.doi.org/10.5850/JKSCT.2008.32.6.928

Dyeing Properties and Color of Silk Fabrics Dyed with Safflower Yellow Dye  

Shin, Youn-Sook (Dept. of Clothing & Textiles/Human Ecology Research Institute, Chonnam National University)
Son, Kyung-Hee (Dept. of Clothing & Textiles/Human Ecology Research Institute, Chonnam National University)
Yoo, Dong-Il (Dept. of Textile Engineering, Chonnam National University)
Publication Information
Journal of the Korean Society of Clothing and Textiles / v.32, no.6, 2008 , pp. 928-934 More about this Journal
Abstract
The objective of this study is to investigate the dyeing properties of safflower yellow dye on silk for the standardization of dyeing process and color reproducibility. Yellow colorants were water-extracted from safflower petals, concentrated, and freeze-dried to obtain colorants powder. The effects of dye concentration, dyeing temperature, and pH of dye bath were studied in terms of dye uptake and shade. Fastness to dry cleaning and light was evaluated. Dye uptake increased with raising temperature and brighter and more vivid yellow shade was obtained when dyed at $30^{\circ}C$. As colorants concentration increased, dye uptake increased progressively and the shade got darker and deeper. Maximum color strength was obtained at pH 3.5. It was speculated that the adsorption of colorants seemed to occur mainly by hydrogen bonding and physical force at pH 5.5 and by ionic bonding as well as hydrogen bonding below isoelectric point(pH 3.8-4.0). The results of reproducibility test showed acceptable color difference in the range of $1.11{\sim}2.01$. Washing fastness was fairly good as 4/5 rating, while light fastness was 2/3 rating.
Keywords
Safflower yellow colorants; Silk; Dyeing properties; Reproducibility; Co; lor fastness;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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