What are the points to keep in mind when making PP FDY yarn production?

PP FDY yarn production process: mixing - feeding - screw extruder - melt filter - spinning box - side blowing - spinning tunnel - oiling - yarn guide - first drafting heat roller - guide wire - second draft heat roller - yarn guide - third draft heat roller - yarn guide - fourth draft heat roller - yarn guide - fifth draft heat roller - network - winder - cheese wire

The spinning temperature directly affects the rheological properties of polypropylene, the degree of degradation of polypropylene, and the degree of pre-orientation of nascent fibers. Therefore, the spinning temperature is the main process parameter in melt forming. If the spinning temperature is too high, the melt viscosity is too large, and the yarn and the filament are easily generated during spinning; at the same time, because the melt viscosity is too low, the fluidity is large, and the self-weight is formed to be larger than that caused by the stretching of the nozzle. Silk phenomenon. The spinning temperature is too low, the melt viscosity is too large, and the twisting yarn is difficult and uneven, which causes the melt fracture to be wound when the spinneret is stretched, and the full break and hard wire may occur in severe cases.

Established in March 2006, Shanghai Jinci Industrial Co., Ltd. is a large-scale entity specializing in the production and sales of polypropylene (PP yarn). It covers an area of 25 acres, with a construction area of 20,000 square meters and an annual output of 6,000 tons. The polypropylene production line with international progress has many years of experience in the production and production of polypropylene, with excellent testing equipment, advanced technology and first-class service.

Shanghai Jinci Industrial Co., Ltd. mainly produces polypropylene yarn, including polypropylene fiber, polypropylene high strength fiber, polypropylene anti-aging silk, polypropylene twisted yarn, PP FDY yarn, polypropylene fluorescent yarn, polypropylene luminous yarn, polypropylene flame retardant. Silk, polypropylene hollow yarn, etc.