Classification of Nonwoven Fabrics
The fibers used in the production of nonwoven fabrics are mainly polypropylene (PP) and polyester (PET). In addition, there are nylon (PA), viscose, acrylic, ethylene (HDPE), and vinyl (PVC). According to the application requirements, non-woven fabrics are divided into two categories: disposable application type and durable type.
According to the production process is divided into:
1. Spunlace non-woven fabric: The spunlace process is to spray high-pressure fine water flow onto one or more layers of fiber webs, so that the fibers are entangled with each other, so that the fiber webs can be reinforced and have a certain strength.
2. Heat-bonded non-woven fabrics: Heat-bonded non-woven fabrics refer to adding fibrous or powdery hot-melt bonding reinforcement materials to the fiber web, and the fiber web is then heated, melted, cooled, and reinforced into cloth.
3. Pulp air-laid non-woven fabrics: Air-laid non-woven fabrics can also be called dust-free paper and dry-laid non-woven fabrics. It uses the air-laid technology to open the wood pulp fiberboard into a single fiber state, and then uses the air-laid method to condense the fibers on the web-forming curtain, and the fiber web is then reinforced into a cloth.
4. Wet-laid non-woven fabric: Wet-laid non-woven fabric is to open the fiber raw material placed in the water medium into single fibers, and at the same time mix different fiber raw materials to make fiber suspension pulp, and the suspension pulp is transported to the web-forming mechanism, and the fibers are In the wet state, it is formed into a net and then reinforced into a cloth.
5. Spunbond non-woven fabric: After the polymer has been extruded and stretched to form continuous filaments, the filaments are laid into a web, and the web is then self-bonded, thermally bonded, and chemically bonded. Or mechanical reinforcement methods to turn the web into a non-woven fabric.
6. Melt-blown non-woven fabric: The process of melt-blown non-woven fabric: polymer feeding---melt extrusion---fiber formation---fiber cooling---forming web---reinforcing into cloth.
7. Needle-punched non-woven fabric: Needle-punched non-woven fabric is a kind of dry-laid non-woven fabric. Needle-punched non-woven fabric uses the puncture effect of puncture needles to reinforce the fluffy fiber web into cloth.
8. Stitch-bonded non-woven fabrics: Stitch-bonded non-woven fabrics are a kind of dry-laid non-woven fabrics. The stitch-bonding method is to use the warp-knitted coil structure to fabricate fiber webs, yarn layers, non-woven materials (such as plastic sheets, plastic thin metal foils) etc.) or their combination to be reinforced to make a non-woven fabric.
9. Hydrophilic non-woven fabrics: mainly used in the production of medical and sanitary materials to achieve better hand feel and not scratch the skin. For example, sanitary napkins and sanitary pads use the hydrophilic function of hydrophilic non-woven fabrics.
The Difference Between Nonwoven Fabric and Dustless Cloth
Non-woven fabrics are a new generation of environmentally friendly materials, which are water-repellent, breathable, flexible, non-combustible, non-toxic, non-irritating, and rich in color. If the non-woven fabric is placed outdoors and decomposed naturally, its longest life is only 90 days, and it will decompose within 5 years when placed indoors. It directly utilizes polymer chips, short fibers or filaments to form new fiber products with soft, breathable and planar structures through various web forming methods and consolidation techniques. It has environmental protection properties that plastic products do not have, and its natural degradation time is much lower than that of plastic bags. Therefore, non-woven bags made of non-woven fabrics are also recognized as the most economical and environmentally friendly shopping bags.
The dust-free cloth is made of 100% polyester fiber double-woven, with a soft surface, easy to wipe sensitive surfaces, friction does not take off the fibers, and has good water absorption and cleaning efficiency. The cleaning and packaging of the products are all done in the ultra-clean workshop. The optional edge sealing of the clean cloth generally includes: cold cutting, laser edge sealing, and ultrasonic edge sealing. Microfiber dust-free cloths are generally edge-sealed with lasers and ultrasonic waves; dust-free cloths, dust-free wipes, microfiber dust-free cloths, and microfiber wipes are made of 100% continuous polyester fiber double-woven cloth. The surface is soft and can be used For wiping sensitive surfaces, it has low dust generation and does not detach fibers from friction, and has good water absorption and cleaning efficiency. Especially suitable for dust-free purification workshop. The edges of the clean cloth, clean wipe cloth, microfiber clean cloth and microfiber wiper are sealed by the most advanced edge trimmer, which will not leave particles and lint after wiping, and has strong decontamination ability.
Applications of Nonwoven Fabrics
Disposable Items
Medical non-woven products are medical and sanitary textiles made of chemical fibers including polyester, polyamide, polytetrafluoroethylene (PTFE), polypropylene, carbon fiber and glass fiber. Including disposable masks, protective clothing, surgical gowns, isolation gowns, lab coats, nurse caps, surgical caps, doctor caps, surgical kits, maternity kits, first aid kits, diapers, pillowcases, bed sheets, quilt covers, shoe covers and other disposable medical consumables series . Compared with traditional pure cotton woven medical textiles, medical non-woven fabrics have the characteristics of high resistance to bacteria and dust, low surgical infection rate, convenient disinfection and sterilization, and easy compounding with other materials. As disposable disposable products, medical non-woven products are not only convenient to use, safe and hygienic, but also effectively prevent bacterial infection and iatrogenic cross-infection. In my country, the investment in the medical and health industry has reached more than 100 billion yuan, of which the total output value of sanitary products and materials is about 64 billion yuan, and it is developing in the direction of diversification.
Flour Hardpack
The flour bag made of non-woven fabrics has the characteristics of light weight, environmental protection, moisture-proof, breathable, flexible, flame-retardant, non-toxic and non-irritating, and can be recycled. It is used in various small packages of rice noodles, such as: wheat flour, corn flour, buckwheat flour. rice etc. This kind of non-woven products is printed with ink, which is beautiful and elegant, with vivid colors, non-toxic, odorless and non-volatile. Compared with ink printing, it is more environmentally friendly and clean, and fully meets the environmental protection requirements of modern people. Because of reliable product quality, affordable price and long service life. The main specifications are 1 kg, 2.5 kg, 5 kg, 10 kg and other specifications of rice and flour hardcover bags, packaging bags and so on.
Fashion Shopping Bag
Non-woven bags (also known as non-woven bags, English: Nonwoven bags) is a green product, tough and durable, beautiful in appearance, good air permeability, reusable, washable, screen printing advertisements, marks, long service life, It is suitable for any company and any industry as advertising and gifts. Consumers get a beautiful non-woven bag while shopping, and merchants get the best of both worlds with invisible advertising, so non-woven fabrics are becoming more and more popular in the market.
The product is made of non-woven fabric, which is a new generation of environmentally friendly materials. It is moisture-proof, breathable, flexible, light in weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, low in price, and recyclable. The material can be naturally decomposed when placed outdoors for 90 days, and has a service life of up to 5 years when placed indoors. You can also take a look at non woven fabric slitting machine with a simple click.