Polypropylene FDY wire process flow!

The Polypropylene FDY wire production process is usually divided into the following steps:

1. Melt spinning: Load synthetic fiber raw materials into a special spinning machine and melt them into a melt through high temperature heating. The melt passes through the rotating hole plate of the spinning machine, and the fine and uniform fiber is obtained through the jet hole of the rotating jet plate.

2. Cooling molding: The filament meets the cooling air immediately after the spray hole comes out, so that it quickly cools and shapes the growth silk.

3. Heat setting: the cooling formed filament is heated to high temperature through the heat setting device, so that the fiber molecules are rearranged to enhance the strength and tensile properties of the fiber.

4. Deformation and stretching: After heat setting, the filament is further deformed and stretched to improve its linear density and strength.

5. Vertical stretching: the deformed filament is stretched through the wire drawing machine to further increase its tensile ratio, and at the same time, the section of the fiber is refined to increase its softness and ductility while providing the strength of the fiber.

6. Spinning tube: After vertical stretching, the filament is collected through the wire tube to form the finished FDY tube. In the entire FDY production process, the control of temperature, drawing multiple, drawing speed and other process parameters is very important, which has a decisive influence on the quality of the silk. At the same time, it is also necessary to pass strict quality inspection to test the produced FDY silk to ensure that it meets customer requirements and product quality standards.

Polypropylene FDY wire can be divided into different grades of products according to different uses and requirements, such as high-strength FDY, ultra-fine FDY, etc., suitable for textile, weaving, weaving and other fields. Its features include high tensile strength, good softness, good wear resistance, easy dyeing and handling. In the production process of FDY, it is also necessary to pay attention to environmental protection. The selection of polypropylene, polyester and other synthetic fiber raw materials needs to consider its renewability and environmental friendliness, and strengthen environmental protection measures such as wastewater treatment and waste gas treatment to reduce pollution to the environment.

In short, FDY production process is a complex and critical spinning process, through the control of temperature, tensile multiple and other key parameters, strengthen the quality inspection, the production of high-quality FDY yarn, to meet the needs of customers, while focusing on environmental protection, to achieve sustainable development.

Dongguan Donghong New Material Co., Ltd. Founded in 1991, located in Wentang Brick Kiln 冚 Industrial Zone, Dongcheng District, Dongguan City, Guangdong Province, is a medium-sized enterprise specializing in the production of various types of polypropylene yarn, with more than 800 employees. At present, our company has 16 polypropylene filament yarn production lines, forming an annual output of 20,000 tons of polypropylene yarn production scale.