Over-length or several times length staple fibre is a regular control index in PET staple fibre pro-duction.It has great influence on the downstream textile production.

• 超长、倍长在涤纶短纤生产中是一项常规控制指标,在生产中受全流程各方面因素影响,它的数值高低对下游纺织生产质量影响很大。