Industry Background and Technological EvolutionAs core equipment for polymer material processing, plastic sheet extrusion machines convert raw materials such as polypropylene (PP), polyethylene (PE), and polystyrene (PS) into sheets through processes like extrusion, calendering, and casting. These s

Industry Background and Technical PositioningAs a functional polymer material, CPE (Chlorinated Polyethylene) breathable film is produced through the chlorination modification of polyethylene. It integrates high breathability, water resistance, and environmental protection, making it a core material

​In today's commodity packaging field, PE heat shrink film is playing an increasingly important role, becoming a reliable assistant for many enterprises to ensure product transportation and sales.

To produce foamed polymer materials such as foam plastics and sponge rubber, a foaming agent is typically added to the plastic or rubber. When the plastic or rubber is heated, the foaming agent releases gas, causing the material to form fine pores or a honeycomb structure. A foaming agent is a subst

Stretching occurs because the velocity of the filament extruded from the spinneret is lower than the moving speed of the winding device, i.e., the stretching speed is higher than the spinning speed, causing the diameter of the as-spun fiber to be smaller than that of the spinneret orifice. In chemical fiber production, stretching can be carried out continuously following the spinning process, or separately from the spinning process using wound yarn or as-spun fibers pre-wound on bobbins or in silk cans.