In the production process of polypropylene FDY wire, there are some things to be aware of:

polypropylene FDY wire 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 of polypropylene FDY wire 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.

polypropylene FDY wire spinning temperature is too high, melt viscosity is too large, polypropylene FDY silk is easy to produce tip yarn and wool when spinning; at the same time, because the melt viscosity is too low, the fluidity is large, and the formation of self-weight is greater than The phenomenon of wire bonding caused by the stretching of the nozzle. 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.

Shanghai Jinci Industrial Co., Ltd. is a large-scale entity company specializing in the production and sales of polypropylene (PP yarn). The products include polypropylene fiber, polypropylene high strength fiber, polypropylene FDY wire, polypropylene twisted wire, polypropylene hollow fiber, polypropylene fluorescent Silk, polypropylene luminous yarn, polypropylene flame retardant yarn, polypropylene hollow yarn, etc., are exported to Asia, Europe, North America, South America, Africa, Australia and other countries and regions.