Mordant dyeing behaviors of cotton fabric with tea polyphenols
The mordant dyeing of cotton fabric with tea polyphenols ( TP) is carried out with ferrous sulfate, ferric sulfata and aluminum potassium sulfate as mordants.The influences of pH value, immersion temperature of TP treatment and the dosage of mordant in post-mordanting on dyeing behaviors are investigated, furthermore, the color fastness and UV protection property of the dyeings are measured.TP is more stable under acidic condition than neutral and alkaline conditions owing to the increase in the ionization and oxidization of phenolichydroxyl.The colors of the cotton fabrics with ferrous sulfate, ferric sulfate and aluminum potassium sulfate as mordants are violetish grey, pale grey and pale yellow respectively, and the color strength varies with metal ions.It is found that the dyeings feature excellent gray scale for staining of color fastness to soaping and rubbing fastness, while the gray scale for color change of color fastness to soaping is poor.In addition, cotton fabrics dyed with TP show good UV protective performance.
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万方数据
维普
