Fiber-reactive polymeric dyes
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United States of America Patent
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Issued Date -
May 1, 2003
app pub date -
Dec 9, 2002
filing date -
Feb 28, 2000
priority date (Note) -
Abandoned
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Abstract
The invention is directed to fiber-reactive polymeric dyes, which comprise a dye covalently bound to a carboxyl-containing polymer. By 'fiber-reactive' is meant that the polymeric dye will form a chemical covalent bond with the fiber, textile, or web to be treated, via functional groups for binding or attachment to the fibers of the webs to be dyed. The invention also encompasses textile dye preparations comprising a solution or suspension of the fiber-reactive polymeric dye. The resulting polymeric dye preparations have improved colorfastness and retention on the textile or web fiber structure, even after a large number of washings. The textiles or webs treated with the fiber-reactive dye are also included in the invention.
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