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3月23日,仪征化纤股份有限公司国内最大、年产9万吨直接纺涤纶长丝项目最后一条生产线投料开车一次成功,标志着该项目已全面建成投产,从而仪化今后可以通过世界上先进的直纺工艺降低长丝生产成本,达到增强竞争力和抵抗外部走私、倾销冲击的能力,更好地发挥国内化纤排头兵的作用。直接纺长丝是聚酯熔体不经冷却成切片而直接熔融进行纺丝的一种工艺,是近年来国际长丝发展的趋势。长期以来,国内长丝生产主要采用的是间接纺技术,由于中间经过了冷却再熔化的过程,产生批量小、质量不稳定以及成本居高不下的弊端,
On March 23rd, Yizheng Chemical Fibre Co., Ltd. had the largest production line of the 90,000 t/y direct spinning polyester filament project in China. The successful completion of the last production line marked that the project has been fully completed and put into production, so that the instrument can be advanced in the world through the future. The direct-spinning process reduces the production cost of filaments, enhances competitiveness and resists external smuggling and dumping impacts, and gives better play to the role of domestic chemical fiber vanguards. The direct spinning filament is a process in which the polyester melt is directly melted for spinning without cooling into chips, and is a trend of international filament development in recent years. For a long time, domestic filament yarn production mainly adopts indirect spinning technology. Because the middle has undergone the process of cooling and re-melting, the disadvantages of small batch size, unstable quality, and high cost are caused.