How to increase the longitudinal elongation of needle punched non-woven fabrics?

How to increase the longitudinal elongation of needle punched non-woven fabrics? The series of needle punched non-woven fabrics are formed through fine carding, multiple precision needle punching or proper hot rolling. On the basis of introducing two high-precision acupuncture production lines at home and abroad, high-quality fibers are selected. Through the coordination of different production processes and the combination of different materials, hundreds of different products are currently circulating on the market, including: geotextile, geomembrane, velvet cloth, speaker blanket, electric blanket cotton, embroidered cotton, clothing cotton, Christmas Crafts, artificial leather base cloth, special cloth for filter material. How to increase the longitudinal elongation of needle punched non-woven fabrics? Mainly make adjustments from the following five aspects to increase the longitudinal elongation of the needle-punched non-woven fabric: 1. Replace fibers with large elongation; 2. Adjust the cylinder and doffer of the carding machine to reduce the accumulation of longitudinal fibers; 3. Lower the needle The amount of draft in the punching process; 4. Reduce the needling density; 5. Reduce the ironing temperature;