TY - JOUR
T1 - Color Analysis on Natural Polyphenolic Dyed Cotton Cellulose Fibers
AU - Feng-Yan Li, Qiao-Fen Yang, Cai-Hong Hong & Zhi-Li Zhong 
JO - Journal of Fiber Bioengineering and Informatics
VL - 2
SP - 100
EP - 105
PY - 2010
DA - 2010/03
SN - 3
DO - http://doi.org/10.3993/jfbi09201007
UR - https://global-sci.org/intro/article_detail/jfbi/4953.html
KW - Cotton cellulose fiber
KW - natural polyphenolic dyestuff
KW - green tea
KW - iron ion
KW - thermal stability
KW - tensile property
AB - Natural polyphenolic dye extracted from green tea is used to dye cotton cellulose fibers. FTIR for the microstructure analysis of fibers, and SEM for the surface morphology observation have been used to characterize the changes induced by tea dyeing. Color shade, thermal stability and mechanical property of dyed fibers are tested. The results show that hydroxyl group of tea polyphenolic and cotton cellulose forms hydrogen bond in dyed fibers without mordant agent, while both coordinate bond and hydrogen bond are coexisted in meta-mordant dyed fibers. The deep shade is obtained in acid media of pH 4 for meta-mordant dyed fibers due to the mordant effect. The coordinate bond contributes to the thermal stability of meta-mordant dyed fibers. The formation of fiber-Fe complexation decreases tensile strength and increases elongation at break for fibers.