Classification Of Non-woven Fabrics

The main fibers used in non-woven fabric production are polypropylene (PP) and polyester (PET). In addition, there are nylon (PA), viscose fiber, acrylic fiber, polyethylene terephthalate (HDPE), and polyvinyl chloride (PVC). According to application requirements, non-woven fabrics are divided into two categories: disposable and durable.
According to the production process, it can be divided into:
1. Water jet non-woven fabric: The water jet process is to spray high-pressure fine water onto one or more layers of fiber webs, causing the fibers to entangle with each other, thereby reinforcing the fiber webs and giving them a certain strength.
2. Heat sealed non-woven fabric: Heat bonded non-woven fabric refers to adding fibrous or powdery hot melt adhesive reinforcement materials to the fiber web, and then heating, melting, and cooling the fiber web to reinforce it into a fabric.
3. Pulp air laid non-woven fabric: Air laid non-woven fabric can also be called dust-free paper or dry papermaking non-woven fabric. It uses air flow web technology to loosen wood pulp fiberboard into a single fiber state, and then uses air flow method to aggregate the fibers on the web curtain, and the fiber web is reinforced into fabric.
4. Wet non-woven fabric: Wet non-woven fabric is made by loosening fiber raw materials placed in an aqueous medium into single fibers, and mixing different fiber raw materials to produce fiber suspension slurry. The suspension slurry is transported to the web forming mechanism, and the fibers are formed into a web in a wet state and then reinforced into a fabric.
5. Spunbond nonwoven fabric: Spunbond nonwoven fabric is formed by extruding and stretching polymers into continuous filaments, which are then laid into a web. The web is then self bonded, thermally bonded, chemically bonded, or mechanically reinforced to turn it into nonwoven fabric.
6. Melt blown non-woven fabric: The process of melt blown non-woven fabric includes polymer feeding, melt extrusion, fiber formation, fiber cooling, web formation, and reinforcement into fabric.
7. Needle punched non-woven fabric: Needle punched non-woven fabric is a type of dry non-woven fabric that uses the puncture effect of needles to reinforce fluffy fiber webs into fabric.
8. Stitch woven non-woven fabric: Stitch woven non-woven fabric is a type of dry non-woven fabric, which uses a warp knitted coil structure to reinforce fiber webs, yarn layers, non-woven materials (such as plastic sheets, plastic thin metal foils, etc.) or their combinations to make non-woven fabric.
9. Hydrophilic non-woven fabric: mainly used in the production of medical and health materials to achieve better hand feel and avoid scratching the skin. Sanitary napkins and sanitary pads utilize the hydrophilic function of hydrophilic non-woven fabrics.