Drawing is the core pre process of industrial fabric production, which refers to the process of drawing polymer raw materials into continuous fiber filaments through melt spinning or solution spinning. This step directly determines the key properties of industrial fabric yarn, such as thickness, strength, and toughness, and is the foundation for industrial fabric to achieve core functions such as wear resistance, high strength, and weather resistance. Unlike civilian textile drawing, industrial fabric drawing has stricter requirements for the mechanical properties and stability of fibers, and higher process control accuracy.

Industrial fabric drawing is mainly divided into two categories: melt drawing and solution drawing. Among them, melt drawing is widely used in the production of conventional industrial fibers such as polyester, polypropylene, nylon, etc. due to its high efficiency and controllable cost. The core process includes raw material pretreatment, melt extrusion, spray forming, cooling solidification, stretching orientation, and heat setting winding.

The core control parameters of wire drawing process directly affect the performance of the final product. Temperature control requires precise matching of raw material characteristics, as temperature fluctuations can lead to uneven fiber thickness; The cooling rate determines the crystalline morphology of fibers, and rapid cooling can obtain amorphous or low crystallinity fibers, resulting in better tensile properties in the future; The coordinated control of stretching speed and temperature affects the fracture strength and elongation of fibers. In addition, for industrial fabrics used in outdoor, chemical and other special scenarios, functional additives such as UV resistance and acid alkali resistance will be added during the drawing stage to endow the fibers with inherent functional properties. High quality wire drawing technology is the guarantee for industrial fabrics to adapt to diverse scenarios.