PRODUCTION OF WATER-REPELLENT POLYESTER FIBER HAVING EXCELLENT DURABILITY

摘要

PURPOSE:To obtain the title fiber having excellent dark color developing properties and durability by providing specific polyester fiber with aliphatic polyepoxy compound, heating and drawing and supplying the fiber with an amino modified silicone compound. CONSTITUTION:Polyester fiber having <=0.08, preferably <=0.01 double refraction of amorphous part is provided with an aliphatic polyepoxy compound containing two or more epoxy groups in the molecule, then heated and drawn and/or heat- treated and then supplied with an amino modified silicone compound to give the objective fiber.