Dyeing of melamine-formaldehyde condensation products
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United States of America Patent
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Apr 29, 1997
Grant Date -
N/A
app pub date -
Sep 7, 1995
filing date -
Sep 15, 1994
priority date (Note) -
Expired
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Abstract
Condensation products obtainable by condensation of a mixture comprising unsubstituted melamine, substituted melamine and hydroxyphenyl compounds with formaldehyde or formaldehyde donor compounds are dyed in the form of fibers, yarns, threads, wovens, knits or nonwovens in an aqueous liquor with one or more dyes of the class of the azo, anthraquinone, coumarin, methine, azamethine, quinophthalone or nitro dyes.
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