Hydrophilic polyester fibers with stable pore system

Details Hydrophilic polyester fibers with stable pore system Hydrophilic polyester fibers with stable pore system

D - Textiles, Paper

01

D

18/585, 18/622

D01D 5/247 (2006.01) C07F 5/06 (2006.01) C08K 5/098 (2006.01) D01F 6/92 (2006.01) D01F 8/14 (2006.01)

Patent

CA 1117723

ABSTRACT OF THE DISCLOSURE A hydrophilic polyester fiber having a stable pore system capable of capillary condensation at 20°C and a relative humidity of less than 97% and exhibiting a moisture regain of more than 2 percent by weight at 40°C and a relative humidity of 92%, the proportion of moisture regain attributable to capillary condensation being at least 25%. The fibers are produced by extruding a polyester mass containing 1 to 20 percent by weight of an oxalato-complex, drawing the filament obtained and hydrosetting it at temperatures between 90 and 170°C in the presence of liquid water; the fibers display the advantages of prior polyester fibers and additionally have the advantages associated with natural fibers.

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