polypropylene staple fiber adopts different production processes in the production process, and the obtained polypropylene staple fiber will also become different. In the spinning process, the polypropylene staple fiber has a coarse sand process, a fine sand process and a drawing process.

1. polypropylene staple fiber - roving process

Adopting the principle of “low speed, large gauge and large quantity”, the cleaning work is strengthened, the rubber roller and roller are cleaned regularly, the tension draft is controlled, and the roving break is reduced.

2, polypropylene staple fiber - spinning process

The drawing of the spinning frame adopts the V-shaped curve drafting, and adopts the principle of “low speed, large gauge, and small rear zone drafting”. Reasonably select the steel collar and the wire ring to shorten the replacement cycle of the yarn guide hook to reduce the hairiness of the yarn and reduce the breakage; strengthen the cleaning of the components of the drafting channel, especially the rubber roller and the roller.

3, polypropylene staple fiber - drawing process

The drawing principle adopts the principle of “low speed, smooth drafting, and large quantity”. The two-way combination is adopted, and the rear zone spacing and the rear zone drafting multiple are controlled to be large, the main drafting distance is small, and the bell mouth is 312 mm, which ensures the quality of the rubber roller and the channel is smooth. Strengthen weight control, the weight unevenness rate is controlled below 112%. Regularly clean the wax grease attached to the roller and rubber roller.

Hai'an County Qinfeng Chemical Fiber Co., Ltd. relies on first-class professional technical strength, front-end quality inspection system and perfect quality inspection system to rank among the high-quality enterprise queues in the industry, specializing in the production of polypropylene staple fiber. The "Qinfeng" brand polypropylene staple fiber has superior moisture permeability. And quick drying, good combing and spinning performance, with fast melting, good filling and sound insulation.

"Qinfeng" brand polypropylene staple fiber sincerely look forward to your call us!