During the production process, what pre-treatment processes did the 90% Window Shade fabric undergo to enhance its stability?

During the production process, the 90% Window Shade fabric is heat-set by placing the fabric in a high-temperature environment. Through precisely controlled temperature and tension, the fabric fibers are optimally arranged to fix their shape. This not only effectively eliminates the internal stress generated during the weaving process of the fabric, but also significantly enhances the dimensional stability of the fabric, ensuring that the curtains maintain good drape and flatness after long-term hanging.
Before the fabric enters the final cutting and sewing stage, it is pre-shrunk to simulate the shrinkage behavior of the fabric under extreme conditions. This step can release the potential shrinkage space of the fabric in advance, effectively avoid fabric size changes caused by subsequent washing or environmental factors, and ensure that the curtain size is accurate and long-lasting.
220gsm high-density polyethylene (HDPE) is selected as the main material of the curtains. Thanks to its excellent weather resistance, wear resistance and lightweight properties, HDPE fabric is not only durable, but also easy to clean and maintain. The knitted structure gives the fabric good elasticity and breathability, allowing the curtains to effectively regulate indoor light and ventilation while maintaining their appearance.
Through advanced chemical or physical methods, anti-UV additives are evenly integrated into the fabric fibers to form an effective protective barrier. This treatment can not only effectively block up to 90% (or specific value, according to the product description) of UV radiation and protect indoor furniture from UV damage, but also extend the service life of the curtains themselves and avoid fading and aging caused by long-term UV exposure. .
Nano waterproof technology is used to form a super hydrophobic layer on the surface of the fabric, effectively blocking moisture penetration and keeping the curtains dry and clean. The fabric is treated with special chemicals to make the surface less likely to absorb dust and stains. Even if it is stained with dirt, it can be easily wiped clean with a damp cloth, making maintenance simple. Especially in humid environments, anti-mildew and antibacterial treatment can effectively inhibit the growth of microorganisms and keep curtains fresh and odor-free.
After each process is completed, strict quality control and inspection are carried out to ensure that each piece of curtain fabric meets the established standards and requirements. This includes, but is not limited to, testing of fabric strength, verification of dimensional stability, evaluation of UV protection effectiveness, and durability testing of functional finishes.