High strength polypropylene wire production process!

‌ The production process of High strength polypropylene wire mainly includes the following steps ‌ :

‌ Raw material preparation ‌ : polypropylene (PP) is used as the main raw material, and additives such as antioxidant and ultraviolet stabilizer are added as required to improve weather resistance and stability. Polypropylene and additives are pre-crystallized to improve the fluidity and stability of the melt.

‌ melt extrusion ‌ : through a screw extruder, the pre-crystallized polypropylene and additives are fused to form a uniform melt.

‌ spinning ‌ : the melt forms a fine flow through the spinneret and enters the cooling medium for cooling and solidification. According to product specifications, adjust the spinneret aperture and spinning speed, control the trickle diameter and cooling conditions.

‌ stretch shaping ‌ : multistage stretching of the primary fiber to improve the strength and orientation of the fiber. During the drawing process, the drawing temperature, speed and tension should be controlled to ensure the stability of the fiber properties.

‌ Heat treatment ‌ : Heat treatment makes the silk more stable and further improves its physical properties.

‌ winding and packaging ‌ : The stretched and shaped fiber is wound on the bobbin for subsequent processing and use. The tow should be sealed to prevent moisture and contamination.

In addition, in order to improve the strength of High strength polypropylene wire the two-step method of double twist of pre-spinning drafting and post-spinning drafting can be used, the use of large length-diameter ratio screw extruders and large length-diameter ratio spinning components spinnaging capillaries, and the use of inexpensive polypropylene powder, adding high-density polyethylene and polypropylene cooling masterbatch to optimize the production process and improve the uniform strength of the fiber ‌

Shanghai Jinci Industrial Co., Ltd, founded in March 2006, is a large entity company specializing in the production and sales of polypropylene fiber (PP yarn). The company's products include polypropylene general filament, PP high-strength yarn, polypropylene light body filament, polypropylene twist filament, polypropylene hollow filament, polypropylene fluorescent filament, polypropylene luminous filament, polypropylene flame retardant filament, polypropylene air variable filament, etc.