Antistatic polyester fibers
AssigneeTeijin Limited
InventorsKiyotaka Ozaki, Michikage Matsui
Life of this patent
Estimating the term…
Abstract
A hollow polyester fiber with excellent antistatic properties composed of a single polymeric component and having a hollow extending along the longitudinal axis thereof and in which the hollow ratio is at most 15%, which fiber contains (a) a polyoxyalkylene glycol substantially non-reactive with said polyester and (b) an ionic antistatic agent, dispersed through the fiber in an amount of at most 3% by weight based on the weight of the fiber, and wherein the polyoxyalkylene glycol (a) is predominantly dispersed in a core portion of the fiber in a high density. The fiber also has excellent tensile strength, resistance to fibrillation and dyeing properties.
Claims12
An antistatic polyester fiber composed of a single polymeric component, having at least one hollow core extending along the longitudinal axis thereof, the hollow ratio being at most 15%, and containing (a) a polyoxyalkylene glycol substantially non-reactive with said polyester and (b) an ionic antistatic agent, dispersed through the fiber in an amount of at most 3% by weight based on the weight of the fiber, characterized by the presence of a highly conductive portion formed by the dispersion of said polyoxyalkylene glycol around said hollow core in a high density and further characterized in that the ionic antistatic agent is almost uniformly dispersed throughout the cross-section of the fiber.
Dependencies are inferred from the claim text.