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DYEING COTTON WITH EISENIA BICYCLIS AS NATURAL DYE USING DIFFERENT BIOMORDANTS

Authors :
BONET Mª Ángeles
BOU Eva
MONTAVA Ignacio
DIAZ Pablo
Source :
Annals of the University of Oradea: Fascicle of Textiles, Leatherwork, Vol XVI, Iss 2, Pp 9-12 (2015)
Publication Year :
2015
Publisher :
Editura Universităţii din Oradea, 2015.

Abstract

Natural dyes are known for their use in coloring of food substrate, leather as well as natural protein fibers like wool, silk and cotton as major areas of application since pre-historic times. Nowadays, there has been revival of the growing interest on the application of natural dyes on natural fibers due to worldwide environmental consciousness. Some researchers focus their studies on the improvement of these dyes using mordants. Most works use metallic mordants like aluminum or iron are used, but some of them are hazardous. In this work we used a biomordant to solve environmental problems caused by metallic mordants. The effects of chitosan weight molecular in mordanting on the dyeing characteristics and the UV protection property were examined in this study. Chitosan mordanted Eisenia Bicyclis dyed cotton showed better dyeing characteristic and higher UV protection property compared with undyed cotton fabric. To analyze the differences of the dyeing, reflection spectrophotometer was used, evaluating the results of CIELAB color difference values and the strength color (in terms of K/S value). We conclude that the type of chitosan used affect the dyeing efficiency and the UV protection, showing different behavior between dye sample using chitosan with low or medium molecular weight.

Details

Language :
English
ISSN :
1843813X
Volume :
XVI
Issue :
2
Database :
Directory of Open Access Journals
Journal :
Annals of the University of Oradea: Fascicle of Textiles, Leatherwork
Publication Type :
Academic Journal
Accession number :
edsdoj.fafbe2eab2e3420c91b1adb1da5732d4
Document Type :
article