During the Minor Heat season, Suining County Tongjia Chemical Fiber Factory adheres to the quality of polypropylene industrial filament!

With the arrival of Minor Heat, the scorching heat is in full swing, and the damp and muggy air envelops the earth. Under such harsh climatic conditions, the production of chemical fibers faces numerous challenges. However, Suining Tongjia Chemical Fiber Factory, with its solid technology and rigorous processes, has been continuously delving into the production of polypropylene industrial filament, ensuring that the product quality is not affected by the high-temperature and high-humidity environment.

The quality of polypropylene industrial filament lies in the control of raw materials. Suining Tongjia Chemical Fiber Factory carefully selects high-purity polypropylene resin as raw materials for production. These raw materials must undergo strict screening to ensure that the molecular chain structure is regular and the impurity content is low. During the Minor Heat period, raw material storage is prone to be affected by humid air. This factory is equipped with a professional raw material storage environment. Through temperature and humidity control equipment, it maintains the dry state of raw materials, avoiding performance fluctuations caused by moisture, and laying a solid foundation for the production of high-quality polypropylene industrial filament.

During the production process, polypropylene industrial filament needs to go through multiple precise procedures. In the melting stage, polypropylene raw materials need to be transformed into a uniform melt at high temperatures. The high temperature during Minor Heat will increase the difficulty of heat dissipation for equipment, thereby affecting the stability of melt temperature. Tongjia Chemical Fiber Factory adopts an advanced temperature control system to monitor and precisely adjust the melting temperature in real time. Usually, the temperature is stabilized at 260-300 °C to ensure that the raw materials are fully melted without decomposition. Even when the outside world is sweltering with heat, the quality of the melt can still be guaranteed to remain consistent.

The melt is precisely metered by the metering pump and then extruded through the spinneret to form filaments. The quality of the spinneret is directly related to the uniformity of the filament. Tongjia Chemical Fiber Factory uses spinnerets processed with high precision, and the size error of the spinneret holes is extremely small. In the high-humidity environment of Minor Heat, to prevent water vapor from interfering with the extrusion state of the melt, the factory has set up a dry gas protection device in the spinjet area to optimize the internal airflow environment, ensuring that each filament can be extruded in a stable state and creating favorable conditions for subsequent molding.

After the filament is extruded, cooling and molding are the key steps. During the Minor Heat period, the high temperature brings greater pressure to the cooling process. Tongjia Chemical Fiber Factory employs an efficient cooling system and adopts a side-blowing air cooling method, strictly controlling the wind speed, temperature and direction of the cooling air. Maintain the cooling air temperature at 12-16 °C and the wind speed at 0.1-0.3m /s to ensure that the filaments cool and solidify rapidly and evenly, forming structurally stable primary fibers. Even if the external temperature keeps rising, the cooling system can still ensure the quality of fiber forming through intelligent adjustment.

The subsequent stretching, twisting and other processes should not be underestimated either. The high temperatures during Minor Heat can cause operational deviations in equipment components due to thermal expansion and contraction. Tongjia Chemical Fiber Factory has carried out special treatments on the key components of its production equipment, selecting high-temperature resistant and wear-resistant materials. At the same time, it has strengthened the daily maintenance and monitoring of the equipment. During the stretching process, precisely control the temperature and tension to fully Orient the fiber molecular chains, thereby enhancing the strength and modulus of the polypropylene industrial filament. The twisting process endows the filaments with good cohesion and softness.

The polypropylene industrial filament produced by Suining Tongjia Chemical Fiber Factory still maintains excellent performance during the special period of Minor Heat. Its high strength and wear resistance make it suitable for making industrial ropes, lifting slings, etc., providing reliable protection for various projects in high-temperature working environments. Its excellent corrosion resistance and low moisture absorption enable it to be stably applied in the manufacturing of fishing nets, outdoor tarpaulins and other products even in humid and hot climates. Tongjia Chemical Fiber Factory, with its unwavering commitment to quality, has enabled its polypropylene industrial filament to demonstrate its value during the Minor Heat test.