The invention is a polyester and a method for producing a polyester filament which has a combination of flame resistance and low pilling properties. The method comprises forming a polyester polymer from a mixture consisting essentially of terephthalate acid or dimethyl terephthalate, ethylene glycol, a chain branching agent having a functionality of at least 3 and a phosphinic acid in the amount between 0.5 and 20 mole percent of the terephthalate acid and monomer. In particular, the invention also comprises the enhanced fiber formed by the process, as well as the fabrics having a pilling of about 3 to less than 5 as measured in accordance with ASTM D-3512-82.
本发明是一种聚酯和一种生产聚酯长丝的方法,这种长丝兼具阻燃性和低起球性。该方法包括用主要由
对苯二甲酸或
对苯二甲酸二甲酯、
乙二醇、官能度至少为 3 的支链剂和
膦酸组成的混合物形成聚酯聚合物,
膦酸的用量占
对苯二甲酸和单体的 0.5 至 20 摩尔%。特别是,本发明还包括由该工艺形成的增强纤维,以及根据 ASTM D-3512-82 测量,起球率约为 3 至小于 5 的织物。