The present invention relates to a method for improving the color fastness of a dyed product which comprises treating a dyed product which has been dyed with a reactive dye with a copolymer of an N-substituted secondary allylamine derivative represented by the following general formula:
wherein R represents a hydrocarbon group or a substituted hydrocarbon group and HX represents an inorganic or organic acid, and allylamine, diallylamine or dimethyldiallylammonium chloride.
The dyed product treated according to the method of the present invention satisfies the following requirements on performances: 1) a sufficient maintenance of fastness to chlorine, 2) a satisfactory resistance to acid hydrolysis, 3) freeness from the color change due to the treatment, 4) freeness from the decrease in fastness to light and 5) high fastnesses to water and washing.
本发明涉及一种提高染色产品色牢度的方法,该方法包括用 N-取代仲烯丙 基胺衍
生物的共聚物处理用活性
染料染色的染色产品,该衍
生物由以下通式表示: 其中 R 代表烃基或取代的烃基,HX 代表
无机酸或有机酸,以及
烯丙基胺、
二烯丙基胺或二 甲基
二烯丙基氯化铵。 按照本发明方法处理的染色产品在性能上满足以下要求:1)充分保持耐
氯牢度, 2)令人满意的耐酸
水解性,3)不受处理引起的颜色变化的影响,4)不受耐光牢度 下降的影响,5)耐
水牢度和耐洗牢度高。