Custom Large Chemical Fiber Polyester Yarn

How do polyester yarn manufacturers choose the right polyester raw materials for polyester yarn?

1. Yarn specifications and quality
Yarn specifications:
Choose the right yarn specifications and models according to production requirements. Different products may require yarns of different thicknesses and twists.
Investigate the yarn's linear density (such as D number), twist and other parameters to ensure that they meet production requirements.
Yarn quality:
Choose good quality polyester yarn, which usually means that the yarn has high strength, good elasticity, softness and comfort, is not easy to pilling, and has a longer service life.
The quality of the yarn can be evaluated by looking at its appearance quality (such as yarn uniformity, hairiness, etc.) and physical performance indicators (such as breaking strength, elongation at break, etc.).
2. Fiber properties of raw materials
Fiber fineness:
The fineness of polyester fiber affects the softness, glossiness and warmth of the fabric. Generally speaking, the finer the fiber, the better the softness and glossiness of the fabric, but the price is also relatively high.
Choose the right fiber fineness according to product requirements and cost budget.
Fiber strength and elasticity:
Polyester fiber has high strength and elasticity, which is one of its important advantages as a textile raw material.
Ensure that the fiber strength and elasticity of the selected raw material meet the production requirements to ensure the durability and comfort of the final product.
3. Finishing process
The finishing process has a great influence on the performance of polyester yarn, including wrinkle resistance, antibacterial property, waterproofness, etc.
Understand the finishing process level of the raw material supplier and select yarn with appropriate finishing treatment to meet the specific needs of the product.

How can polyester yarn suppliers reduce static electricity and adhesion during the spinning process of polyester yarn?

1. Methods to reduce static electricity
Control humidity:
The generation of static electricity is closely related to air humidity. In the spinning workshop, humidification equipment such as the ZS-80Z series carding process humidifier (from Baijiahao) can effectively increase the air humidity, usually controlling the humidity between 52%~62%RH to reduce the generation of static electricity.
The humidification equipment uses ultrasonic oscillation atomization technology to atomize water into tiny particles and blow them into the workshop. These mist particles are quickly vaporized, thereby increasing the air humidity and accelerating the dissipation of static electricity.
Use static eliminator:
During the processing of polyester yarn, static eliminator can be added to reduce the generation and accumulation of static electricity. Static eliminator can reduce the volume resistivity or surface resistivity of the material, thereby accelerating the leakage of static electricity and reducing the accumulation of static electricity (from Baidu Aicaigou).
Accelerate the stretching speed:
During the spinning process, speeding up the stretching speed of the yarn can reduce the generation of static electricity. Because the faster the stretching speed, the shorter the friction time between the fibers, and the less static electricity is generated (from Baidu Aicaigou).
Grounding:
Adding grounding devices around the spinning equipment and spindles can lead out the static electricity generated, thereby reducing the sensitivity of the product to static electricity.
Optimizing processes and equipment:
Selecting good combing elements and cylinder needle clothing, such as using cylinder needle teeth with "large angle, shallow teeth, and arc back", is conducive to the transfer of chemical fibers from the cylinder to the doffer, reducing the generation of static electricity (from Baijiahao).
Increasing the cylinder-licker-in speed ratio, the linear speed ratio between the large pressure roller and the roller, and other process configurations can also help reduce the impact of static electricity on the spinning process.
2. Methods to reduce adhesion
Using oil:
Adding an appropriate amount of oil to the raw material can solve the problems of adhesion and entanglement in the production and processing process. The oil should have good hygroscopicity and low adhesion to avoid the phenomenon of entanglement between the cylinder and the licker-in roller during the combing process (from the WeChat public platform).
Optimize process configuration:
Shorten the length of cotton rolls and increase the weight of cotton rolls to reduce the contact area and time between fibers, thereby reducing adhesion.
Use designs such as compression bell mouth to reduce blockage and adhesion problems.
Control workshop temperature and humidity:
In addition to humidification to reduce static electricity, appropriate temperature (generally not exceeding 25°C) and humidity can also help reduce adhesion between fibers.
Maintain equipment regularly:
Regularly check and maintain spinning equipment to ensure that the equipment is in good condition and avoid adhesion problems caused by equipment failure.