The role of non-woven needle puncture

The non-woven fabric is based on the effect of a mechanical device, that is, the needle puncture effect of the acupuncture machine, which reinforces and binds the bulky web structure to obtain strength. Using triangular cross-section (or other cross-section) edges, the puncture needle with the tail of the scorpion is used to continuously puncture the surgical web. When the scorpion swung its tail over the web, it forced the chemical fibers on the inner surface of the web to pierce into the web. Because of the frictional effect between chemical fibers, pattern piercing, ring piercing and tube piercing, etc. The basic concept of the needle-punching method to manufacture non-proof cloth is: The needle-punching nonwoven processing method is divided into: pre-needling, main-needling, and reducing the original bulky web. When the felting needle is withdrawn from the fiber web, the pierced fiber bundles will leave many fiber bundles tightly entangled with the fiber web, making it no longer bulky. After several times of needle piercing, a lot of fiber bundles are pierced into the fiber web, and the chemical fibers in the fiber web are entangled with each other, and then become a certain strength and thickness, a needle-piercing non-woven material.