METHOD OF DYEING CELLULOSIC FIBER PRODUCT WITH NATURAL DYE

摘要

PROBLEM TO BE SOLVED: To provide a method of dyeing cellulosic fiber products in high dye concentration with increased fastness in a shortened time with reproducibility by using pretreatment and after-treatment solutions and the dye liquors including no or reduced amounts of harmful matters under the good environment for dyeing with reduced environmental load of the waste liquid treatment. ;SOLUTION: The cellulosic fiber products are treated with an aqueous alkali solution including 3-50 wt.% of alkali based on 100 wt.% of the products at 50-110°C and dyed with natural dyes using a mordant.;COPYRIGHT: (C)2003,JPO