DYEING QUALITY IMPROVER FOR POLYESTER-BASED FIBER MATERIALS
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United States of America Patent
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Issued Date -
Mar 18, 2010
app pub date -
Aug 27, 2008
filing date -
Nov 12, 2007
priority date (Note) -
Abandoned
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Abstract
The invention provides a dyeing quality improver for polyester-based fiber materials characterized by comprising a polyester copolymer, obtained by polycondensation of a dibasic acid component containing a dibasic acid with a sulfonate group in an amount of 15-65 mol % and a dihydric alcohol component containing polyethylene glycol with a molecular weight of 900-3500, having a molecular weight of 3000-30,000 and containing polyoxyethylene chains in the molecule in an amount of 10-40 mass %, and at least one compound selected from among styrenated phenolalkylene oxide addition products and higher alcohol alkylene oxide addition products. It is possible to solve the problem of adhesion of polyester oligomers and the problems of dye contamination and foreign matter contamination, during dyeing of polyester-based fiber materials.
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