Polypropylene staple fiber is made of high-quality polypropylene raw materials that are melted at high temperature and spun into a spinning system composed of a spinneret and an external annular transverse blowing system, and then go through the processes of barrel dropping, drafting, crimping, and cutting.

At present, polypropylene staple fibers are mainly used in papermaking (paper fibers), nonwovens and construction (engineering fibers). Today, the editor talks about the application of polypropylene staple fiber in the paper industry.

Foreign polyester and polypropylene staple fibers are widely used as raw materials for papermaking, and the annual demand for staple fibers is about 500t; while domestic users in my country mainly use ultra-short fibers as raw materials for filtration, packaging, insulation, anti-counterfeiting, antibacterial and other paper. , the annual demand is about 600t.

Papermaking is divided into dry papermaking and wet papermaking.

1. The application of polypropylene in the field of dry papermaking is mainly to produce puffed soft paper. Puffed soft paper, also known as clean paper, is a new type of disposable sanitary material, which can be made into a high-density clean paper absorbing core material, which is used to meet special needs such as high absorption capacity and excellent liquid holding effect. It can also be made into a low-density absorbent core for medical materials.

2. In the field of wet papermaking, polypropylene staple fibers are mainly used to make paper by mixing with plant fibers to improve the quality of the paper and increase the wet strength of the paper. By changing the elastic modulus of the paper, it has a certain elasticity and improves wear resistance. It is mainly used in the production of special paper with high wet strength requirements, such as filter paper and tea bag paper.

In addition, polypropylene staple fibers can also be used for paper recycling and regeneration. Generally, pulp can be reused 5-6 times, but the fastness and tear strength of paper will decrease with the increase of reuse times. The addition of ultra-short synthetic fibers can not only solve the problem of decreased fastness and strength during pulp recycling, but also improve the drying speed and unit production capacity of paper, thereby reducing production costs.

Taizhou Hailun Chemical Fiber Co., Ltd., formerly known as Taizhou Chenguang Synthetic Fiber Factory, was founded in 1995. It is a technical chemical fiber enterprise specializing in the research and development, production and sales of polypropylene staple fibers. The company has more than 170 employees, covering an area of 54,000 square meters, with a workshop of 20,000 square meters and an office building of 5,500 square meters. The company has 5 advanced automatic polypropylene staple fiber production lines, with an annual designed production capacity of 50,000 tons. The company has established a complete polypropylene staple fiber testing laboratory, has a complete set of fiber testing instruments, and has the ability to develop new polypropylene staple fibers. As a polypropylene staple fiber manufacturer in China, the company produces a full range of polypropylene staple fiber products, which are mainly used in the automotive industry, civil engineering, liquid filtration, household and textile industries. The company has passed ISO9001:2015 international quality system certification.