Method of dyeing anionic materials with pigment colors having a net cationic charge using a padding process
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United States of America Patent
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Jun 27, 2000
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N/A
app pub date -
Mar 18, 1999
filing date -
Mar 18, 1999
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Expired
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Abstract
The present invention is directed to a method for dyeing anionic textile materials such as cellulosic materials with a cationic pigment dispersion. The method comprises padding the textile material with a cationic pigment dispersion comprising a pigment and a cationic dispersant and padding the textile material with a film-forming polymer. The padding steps can occur simultaneously with both the cationic pigment dispersion and the film-forming polymer in the same bath or in consecutive padding steps with the cationic pigment dispersion applied before the film-forming polymer or vice versa. The padded materials are dried and cured to produce the pigment-dyed materials.
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