The virgin fiber (winding wire) of polyester staple fiber has low strength, large elongation, high heat shrinkage rate and poor hand feeling; therefore, in order to enhance the practicality (applicability) of polyester staple fiber and to eliminate static electricity as much as possible, polyester staple fiberr is required. Post processing.

The main processing steps of polyester staple fiber are:

Bundling, drafting, oiling, curling, heat setting, cutting and packing

Clustering - preparation

Drafting - increase the degree of orientation; increase in strength, decrease in elongation; decrease in heat shrinkage;

Oiling - spinning, textile processing requirements;

Curl - increase cohesion; feel improved;

Heat setting - increase crystallinity; decrease heat shrinkage rate, improve hand feeling; increase strength and decrease elongation;

Cut and pack - product specifications.

The post-processing of polyester staple fiber is indispensable, otherwise it will have a certain negative impact on the finished polyester product. Therefore, in order to achieve the quality of the finished product and the corresponding performance, the post-processing process of the polyester staple fiber is completed step by step.

Hai'an County Qinfeng Chemical Fiber Co., Ltd. specializes in PP short fiber, polypropylene staple fiber, polyester staple fiber and functional polypropylene staple fiber. With the first-class professional technical strength, the front-end quality inspection system and perfect quality inspection system rank among the high-quality enterprise queues in the industry. In order to enter the high-end and expand the market, our company has invested in the independent research and development field of polypropylene staple fiber in order to climb the high-end position. With innovation as a benchmark, set a good example of the industry.