How is the elasticity and durability of Polyester Spandex fabric ensured during the manufacturing process?

During the manufacturing process, ensuring the elasticity and durability of Polyester Spandex fabric is a complex and delicate task, which involves material selection, weaving technology, finishing technology and other aspects.

1. Material selection
Polyester fiber: Polyester fiber has high strength and elasticity, and can resist stretching and deformation by external forces. Therefore, the garments made have good wrinkle resistance and shape retention, and are not easily deformed even after repeated washing and wearing. Polyester fiber has better abrasion resistance than natural fibers and many synthetic fibers, making it suitable for use in the manufacture of clothing and household items that require high abrasion resistance. In addition, it also has good corrosion resistance and can resist the erosion of chemical substances. Polyester fibers have a higher melting point and are able to maintain their shape and properties at higher temperatures. At the same time, it also has good thermoplasticity and can be shaped and shaped through the process of heating and cooling. Polyester fiber is a poor conductor of electricity and therefore has good insulating properties. In addition, it has low hygroscopicity and is not easy to absorb moisture, so the clothing made has better breathability and warmth.
Spandex: Spandex, also known as spandex, is known for its excellent elasticity and recovery. When selecting, attention should be paid to its elastic modulus, elongation at break, recovery rate and other performance indicators to ensure that the mixing ratio with Polyester fiber achieves the best effect.

2. Weaving process
Fiber mixing: Before weaving, Polyester fiber and Spandex fiber need to be mixed in a certain proportion. The mixing ratio is usually determined according to the product use and performance requirements, generally between 5% and 20%. During the mixing process, it is necessary to ensure that the fibers are evenly distributed to avoid local differences in elasticity.
Weaving machinery: Choosing advanced weaving machinery is the key to ensuring fabric quality. Modern looms are able to precisely control yarn tension, density and weaving speed to achieve fabric uniformity and stability.
Weaving parameters: The setting of weaving parameters has an important impact on fabric performance. For example, too much yarn tension may cause the fabric to be too tight, affecting elasticity; too little tension may cause the fabric to become loose, affecting durability. Therefore, weaving parameters need to be adjusted according to fiber properties and product requirements during the weaving process.

3. Post-finishing technology
Heat setting: Heat setting is an important step in improving the elasticity and durability of fabrics. By controlling temperature and time, the fibers are thermally shrunk and rearranged under the action of heat, thereby improving the dimensional stability and elastic recovery rate of the fabric.
Pre-shrinking: Pre-shrinking is an effective method to reduce fabric shrinkage. By pre-shrinking the fabric, it maintains a stable size during actual wear and washing.
Soft finishing: Soft finishing can improve the feel and wearing comfort of the fabric. By adding softeners, etc., the surface of the fabric becomes smooth and soft, improving the wearing experience.
Antistatic finishing: Antistatic finishing is an effective means to prevent fabrics from generating static electricity during wearing. By adding antistatic agents, etc., the surface resistivity of the fabric is reduced and the antistatic performance is improved.

4. Quality control
Raw material inspection: Strict quality inspection is carried out on purchased Polyester fiber and Spandex fiber to ensure that the quality of raw materials meets production requirements.
Production process monitoring: Real-time monitoring of the weaving and finishing process to ensure that the operation specifications and parameters of each link are accurate.
Finished product testing: Test the elasticity, durability, dimensional stability and other indicators of the finished fabric to ensure that the product quality meets the standards.

Ensuring the elasticity and durability of Polyester Spandex fabric requires starting from many aspects such as material selection, weaving technology, finishing technology and quality control. By strictly controlling the quality and performance requirements of each link, high-quality fabrics that meet market demand can be produced.