Polypropylene POY filament during Minor Heat: The craftsmanship and performance of Ningbo Dazhong Industrial Chemical Fiber!

During the Minor Heat period, high temperatures and humidity interweave, posing higher requirements for the stability of chemical fiber production. The polypropylene POY filament produced by Ningbo Dazhong Industrial Chemical Fiber Co., Ltd. has maintained stable production and application performance under such climatic conditions, thanks to its strict process control and suitable performance.

The production of Polypropylene POY filament begins with the meticulous selection of raw materials. Ningbo Dazhong Industrial Chemical Fiber Co., Ltd. selects high-purity polypropylene chips, which must undergo strict inspection to ensure low impurity content and regular molecular structure. The high humidity during Minor Heat can easily cause the slices to absorb moisture. The company controls the moisture content of the slices at an extremely low level through a sealed storage and drying treatment system, avoiding the formation of bubbles during the melting process due to moisture and laying a good foundation for the subsequent spinning process.

During the production process, the precise control of the spinning technology is particularly crucial. Polypropylene chips undergo high-temperature melting in the screw extruder. The high environmental temperature during Minor Heat will increase the heat dissipation pressure of the equipment. The company uses an intelligent temperature control system to adjust in real time, stabilizing the melting temperature at 260-290℃ to ensure uniform melt and no decomposition. The melt is precisely conveyed to the spinneret by the metering pump. The precise design of the spinneret ensures the uniform extrusion of the filaments. The dimensional error of each spinneret hole is controlled within an extremely small range, making the initial filaments of uniform thickness.

After the filament is extruded, it enters the cooling and forming stage. The side-blowing air system needs to be precisely controlled in the high-humidity environment of Minor Heat. The company optimizes the air temperature, air speed and air pressure to enable the filament to solidify rapidly during the cooling process, forming structurally stable polypropylene POY filament. The humidity of the cooling air also needs to be strictly controlled to prevent defects on the surface of the filament due to water vapor condensation and ensure that the physical properties of the fibers are not affected.

The winding process of polypropylene POY filament also needs to deal with the challenge of Minor heat. The speed and tension control of the winding machine directly affect the forming quality of the filament cake. High-temperature environments may cause fluctuations in the operating parameters of the equipment. The company ensures stable winding speed and uniform tension through regular maintenance and real-time monitoring, making the filament cake neither too tight nor too loose, which is convenient for subsequent processing and storage.

The Polypropylene POY filament produced by Ningbo Dazhong Industrial Chemical Fiber Co., Ltd. has multiple properties suitable for the climate of Minor Heat. It has extremely low hygroscopicity and can remain dry in a humid environment, making it suitable for manufacturing outdoor ropes and other products. It has a balanced strength and elasticity. After subsequent processing, it can be made into various fabrics and is not prone to deformation due to excessive force in high-temperature environments. It has good weather resistance and its performance is not easily degraded in the face of strong ultraviolet rays during Minor Heat, making it suitable for outdoor sunshade materials, etc.

In application scenarios, polypropylene POY filament demonstrates wide applicability. In the textile field, it can be blended with other fibers to make summer clothing fabrics, taking advantage of its breathability and lightness to enhance wearing comfort. In the industrial field, after processing, it can be used to make filter cloth, etc., maintaining stable filtration performance in a humid and hot environment. In the packaging field, its excellent toughness makes it suitable for all kinds of strapping bands, meeting the logistics and transportation demands during the Minor Heat period.

Ningbo Dazhong Industrial Chemical Fiber Co., Ltd. has meticulously controlled the entire production process of polypropylene POY filament, ensuring its stable performance under the special climatic conditions of Minor Heat. This has provided reliable material support for multiple industries and demonstrated its professional standards in the field of polypropylene POY filament.