Process for treating polyamide textile materials with trimellitic anhydride compound
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United States of America Patent
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Mar 30, 1982
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N/A
app pub date -
Jul 23, 1980
filing date -
Jul 23, 1980
priority date (Note) -
Expired
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Abstract
A method for improving the cationic or basic dye uptake of a polyamide textile material which is normally susceptible to anionic or acid dyes which comprises pretreating the polyamide textile material with a substituted trimellitic anhydride compound. The process of the present invention also decreases the textile material's affinity for acid dyes.
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