Technological innovation and industrial application of polypropylene Yarn Stretching Machine!

As the core equipment in the field of chemical fiber equipment, the technological breakthrough of polypropylene Yarn Stretching Machine directly promoted the upgrading of polypropylene fiber performance. Through the coordinated optimization of multi-stage drawing system and heat setting process, the equipment realizes the high orientation and crystallinity control of fiber molecular chain, so that the finished monofilament strength exceeds 7.0g/D, and the fineness range covers 300-1800 deniers, which meets the needs of high-strength application scenarios such as industrial sewing thread and ship ropes.

In terms of process design, the polypropylene Yarn Stretching Machine adopts an extended screw extruder and a continuous melt filter to ensure the uniformity of the melt; the rectangular top-mounted self-tightening sealing component is combined with a large-plate spinneret to improve the uniformity of fiber fineness. The synergistic effect of the side blowing device and the large-flow spray oiling system balances the fiber cooling rate and surface lubricity, reducing the hair and breakage rate. In addition, the combination of environmentally friendly and energy-saving electric heating system and imported intelligent instruments achieves accurate temperature control and reduced energy consumption, which is in line with the trend of green manufacturing.

At the industrial application level, high-strength polypropylene fiber gradually replaces traditional materials with its light weight, acid and alkali resistance, and anti-aging properties. In civil engineering, coarse denier fiber is used for highway roadbed reinforcement; in the field of safety protection, high-strength wire mesh has become the preferred material for building safety nets. With the continuous improvement of equipment performance, polypropylene fiber is expanding in the direction of high-end and differentiation, providing support for emerging markets such as automotive interiors and sportswear.

Since its establishment in 2002, Jiangxi Donghua Machinery Co., Ltd. has been engaged in the research and development, production and sales of complete sets of chemical fiber equipment. The company has brought together a group of professionals with rich experience in the research and development and production of chemical fiber equipment, and has extensive and close technical cooperation with domestic fiber research colleges and universities and scientific research institutes such as Donghua University, National University of Defense Technology, and Beijing Institute of Fashion Technology, so that products are constantly updated and always maintain their industry status.