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差别化纤维的开发与应用技术是衡量一个国家化纤制造水平和纺织产品开发能力的重要指标。作为差别化纤维的重要品种,异收缩混纤丝具有原料组合多样、性能设计灵活、面料风格独特等特点,已被广泛用于服装、家纺等领域,其主导品种为POY/FDY异收缩混纤丝。长期以来,国内外普遍采用先纺丝、后混纤的两步非连续工艺制备POY/FDY异收缩混纤,该工艺流程长、生产效率低、投资大、能源及原料消耗高、产品品质低,已无法满足高档面料的开发需求。而高速纺丝/混纤同步法具有生产效率高、流程短、能耗低、定长定重、可加工细旦超细旦产品等优点,适合加工高档面料,同时符合低碳环保的产业发展需求。因此,采用高速一步法混纤工艺是今后异收缩混纤
Differentiated fiber development and application of technology is a measure of a country’s chemical fiber manufacturing and textile product development capacity of an important indicator. As an important variety of differentiated fiber, heterotrophic mixed filament has the characteristics of diverse raw material combinations, flexible performance design and unique fabric style. It has been widely used in the fields of garments and home textiles. Its leading varieties are POY / FDY wire. For a long time, POY / FDY different-shrink mixed fibers have been widely used both at home and abroad by using two-step non-continuous process of spinning and post blending. The process is long, the production efficiency is low, the investment is big, the consumption of energy and raw materials is high, , Has been unable to meet the development needs of high-grade fabrics. The high-speed spinning / mixing fiber synchronization method has the advantages of high production efficiency, short process, low energy consumption, fixed length and weight, fine denier superfine denier products, etc., suitable for processing high-grade fabrics and at the same time meets the industrial development of low-carbon and environmental protection demand. Therefore, the use of high-speed one-step hybrid fiber technology in the future different shrink mixed fiber