DYE STICKER

摘要

PURPOSE:To remarkably improve the chlorine and sweat fastness of a colored cellulose textile fabric dyed with a reactive dye by after-treatment of the fabric with a polymer having vinylamine structure. CONSTITUTION:A colored cellulose textile fabric dyed with a reactive dye is treated with a dye sticker consisting of a polymer (and/or a salt thereof) made up of 2-90mol% of N-vinylformamide unit of formula I R is H or 1-4C alkyl) and 10-98mol% of vinylamine unit of formula II to remarkably improve the chlorine and sweat fastness of the fabric. The above polymer can be prepared by polymerizing a compound of formula III singly, or copolymerizing this compound with another copolymerizable vinyl compound followed by partial hydrolysis.