Technical principle analysis of needle punched non-woven fabric

Needle-punched non-woven fabrics are what we know and are now widely used in agriculture. A type of non-woven fabrics used in breeding, industry, and building materials industries are widely used. It is a kind of dry-laid non-woven fabric. It is made by opening, carding, and spreading short fibers into a fiber web. Then the fiber web is reinforced into a cloth with needles. Reinforce to form a needle punched non-woven fabric. So today we will introduce the technical principles of Fujian needle punched non-woven fabrics. First, after many times of needling, a considerable number of fiber bundles are pierced into the fiber web, making the fibers in the fiber web entangled with each other, thus forming a needle punched nonwoven material with a certain strength and thickness. When the felting needle exits the fiber web, the pierced fiber bundles detach from the barbs and stay in the fiber web. In this way, many fiber bundles entangle the fiber web so that it can no longer restore the original fluffy state. When the barbs pass through the web, they force the surface and local inner fibers of the web to penetrate into the web. Due to the friction between the fibers, the original fluffy web is compressed. What is the processing principle of needle punched non-woven fabrics? The basic principle is: the use of triangular cross-section (or other cross-section) edges with barbed thorns to repeatedly puncture the fiber web. Needle-punched nonwoven process forms include pre-needling, main-needling, pattern acupuncture, ring-type acupuncture and tubular acupuncture. Hundreds of products can be made with different materials according to different processes. Needle-punched non-woven fabrics are a kind of non-woven fabrics, which are made of polyester and polypropylene raw materials, and are processed through multiple needle punching and proper hot rolling. The production of non-woven fabrics by acupuncture method is completely through a mechanical action, that is, the puncture action of the needle punching machine, which reinforces the fluffy fiber web to obtain strength. The above is the summary of the detailed content of the technical principle analysis of the needle punched non-woven fabric. If you have any questions, you can directly contact the relevant personnel of Fujian Non-woven Fabric Co., Ltd.