METHOD FOR REGULATING MIGRATION OF INSECTICIDE OR ACARICIDE IN A POLYMER FIBRE BY STRETCHING

摘要

Method for regulating migration of insecticide/acaricide in a polymer fibre by stretching A method for producing an insecticidal or acaricidal polymer filament, where the retention effect of Carbon Black on the migration of the insecticide/acaricide is counteracted by a low draw ratio. The method comprising mixing insecticide/acaricide and Carbon Black into a molten thermoplastic polymer, extruding the insecticidal or acaricidal polymer with the insecticide/acaricide and the Carbon Black into a filament, drawing the filament at a draw ratio of 3 to 7.7and thereby obtaining a stretched filament with 80 to 1000 denier.