Polyamide filaments having improved properties and method of...

Details Polyamide filaments having improved properties and method of... Polyamide filaments having improved properties and method of...

D - Textiles, Paper

01

F

18/626

D01F 11/00 (2006.01) D01F 6/60 (2006.01)

Patent

CA 1328965

POLYAMIDE FILAMENTS HAVING IMPROVED PROPERTIES AND METHOD OF PREPARATION ABSTRACT A polyamide filament having improved properties such as increased tenacity and dyeability. The filament has a birefringence of at least 0.040 and an .alpha.-crystal content of at least 30%. The filament is prepared by contacting the filament with water after the filament has been cooled to a temperature below its stick point but above its glass transition temperature. The water can be applied intermittently to the filament to produce a resulting filament having variable dyeing characteristics.

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