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http://dx.doi.org/10.5764/TCF.2011.23.2.90

Eco-printing Using Chitosan and Natural Colorants(1)  

Kim, Chae-Yeon (Department of Clothing and Textiles/Human Ecology Research Institute, Chonnam National University)
Shin, Youn-Sook (Department of Clothing and Textiles/Human Ecology Research Institute, Chonnam National University)
Publication Information
Textile Coloration and Finishing / v.23, no.2, 2011 , pp. 90-99 More about this Journal
Abstract
The aim of this study is to develope eco-printing method using natural pigments and chitosan as a natural binder. Three chitosans with different molecular weights were employed to find appropriate conditions including chitosan concentration and pigment/binder ratio. Dye uptake, color and fastnesses of the printed fabrics were evaluated to find optimum conditions within the range of experiments carried out in this study. The effectiveness of chitosan as a printing binder was examined in comparison with color, dye uptake, and fastnesses of conventional synthetic binder and guar gum. It was found that chitosans with low or medium molecular weight were appropriate. Using low molecular weight chitosan, optimum concentrations were 1.7% for charcoal, madder and chlorophyll, whereas 2.2% for ocher, yellow soil, indigo and cochineal. Regardless of molecular weight and concentration of chitosan, the color fastnesess of fabrics printed with mineral pigments were superior to those of the fabrics printed with plant and animal pigments. As pigment/chitosan ratio became higher, rubbing fastness was decreased by 1-3 grade. The colorfastness of printed fabric with chitosan binder was similar to that with synthetic binder, which was higher than that with guar gum.
Keywords
chitosan; natural colorant; pigment; Eco-printing; binder;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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