NORMAL PRESSURE CATION DYEABLE POLYESTER, TEXTILE PRODUCT MADE FROM THE SAME, AND PROCESS FOR PRODUCTION OF THE SAME
A normal-pressure cation-dyeable polyester is provided which contains an isophthalic acid component having a metal sulfonate group in a predetermined proportion based on the total of acid components present in the polyester, and contains a polyalkylene glycol having an average molecular weight of 15...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A normal-pressure cation-dyeable polyester is provided which contains an isophthalic acid component having a metal sulfonate group in a predetermined proportion based on the total of acid components present in the polyester, and contains a polyalkylene glycol having an average molecular weight of 150 to 600 in a predetermined proportion based on the polyester, wherein the proportion of diethylene glycol based on the total of glycol components and a terminal carboxyl group concentration are each set within a predetermined range. The polyester is stable in quality and excellent in dark-and pale-color light fastness when used for textile products. |
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