Composition and method for improving the fastness of anionic dyes and brighteners on cellulosic and polyamide fibers
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United States of America Patent
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Oct 9, 1984
Grant Date -
N/A
app pub date -
Aug 24, 1983
filing date -
Aug 30, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Aftertreatment of dyeings on cotton or nylon with (A) a polybasic compound which is the product of reacting a primary or secondary amine with cyanamide, dicyandiamide, guanidine or biguanidine and, sequentially or simultaneously (B) a precondensate formed by reacting a compound of type (A) with an N-methylol derivative gives wet fastness properties superior to those given by either (A) or (B) used alone.
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