Non woven fabrics, also known as Nonwoven fabric, needle punched cotton, needle punched non-woven fabrics, etc., are made of polyester fiber and polyester fiber (PET for short), and are made by needle punching process, which can make different thicknesses, feel, hardness, etc.
Non woven fabrics have the characteristics of moisture resistance, breathability, flexibility, lightness, flame retardancy, non-toxic and odorless, low price, and recyclability. Can be used in different industries, such as sound insulation, heat insulation, electric heating pads, masks, clothing, medical, filling materials, etc.
Non woven fabrics do not have warp and weft threads, making them very convenient to cut and sew. They are also lightweight and easy to shape, making them popular among handicraft enthusiasts.
Because it is a fabric formed without the need for spinning and weaving, it simply orients or randomly arranges textile short fibers or filaments to form a fiber network structure, which is then reinforced by mechanical, thermal adhesive, or chemical methods.
It is not made up of yarn interwoven or woven together, but rather of fibers directly bonded together through physical methods. Therefore, when you take out the adhesive lining in your clothes, you will find that it cannot pull out thread after thread. Non woven fabrics break through traditional textile principles and have the characteristics of short process flow, fast production rate, high yield, low cost, wide use, and multiple sources of raw materials.
The relationship between non-woven fabric and spunbond fabric
Spunbonded fabric and non-woven fabric are in a subordinate relationship. There are many production processes for the production of non-woven fabrics, and spunbond method is one of them (including spunbond method, melt blown method, hot rolling method, water spunlace method, and most non-woven fabrics on the market are produced using spunbond method)
Non woven fabrics include polyester, polypropylene, nylon, spandex, acrylic, etc. based on their composition; Different ingredients will have completely different styles of non-woven fabrics. And spunbond fabric, usually referring to polyester spunbond or polypropylene spunbond; And the styles of these two fabrics are very similar, which can only be distinguished through high-temperature testing.
Non woven fabric is a type of non-woven fabric that directly uses polymer chips, short fibers, or filaments to form fibers into a web through airflow or mechanical means, then undergoes water pricking, needling, or hot rolling reinforcement, and finally undergoes post-processing to form a non-woven fabric. A new type of fiber product with soft, breathable, and flat structure has the advantage of not producing fiber chips, being strong, durable, and silky soft. It is also a type of reinforcing material, and has a cotton feel. Compared with cotton fabrics, non-woven bags are easier to form and have a lower cost.
Advantages:
1. Lightweight: Polypropylene resin is the main production raw material, with a specific gravity of only 0.9, which is only three-fifths that of cotton. It has fluffiness and a good feel.
2. Soft: Made of fine fibers (2-3D), it is formed by lightweight hot melt bonding. The finished product has moderate softness and a comfortable feeling.
Polypropylene Non-woven 
3. Water absorption and breathability: Polypropylene chips do not absorb water, have zero moisture content, and the finished product has good water absorption performance. It is composed of 100% fibers and has porosity, good breathability, and is easy to keep the cloth surface dry and easy to wash.
4. It can purify the air and use the advantage of small pores to keep bacteria and viruses out.
5. Non toxic and non irritating: The product is produced using FDA compliant food grade raw materials, free from other chemical components, stable in performance, non-toxic, odorless, and non irritating to the skin.
6. Antibacterial and anti chemical agents: Polypropylene is a chemically inert substance that is not infested by insects and can isolate bacteria and insects present in the liquid; Antibacterial, alkaline corrosion, and the strength of the finished product is not affected by erosion.
7. Antibacterial properties. The product has water repellency, is not moldy, and can isolate the erosion of bacteria and insects in the liquid, and is not moldy.
8. Good physical properties. Made by directly laying polypropylene fibers into a mesh and hot bonding, the strength of the product is better than that of ordinary short fiber products, with no directional strength and similar longitudinal and transverse strength.
In terms of environmental protection, most of the raw materials used for non-woven fabrics are polypropylene, while the raw material for plastic bags is polyethylene. Although the names of the two substances are similar, their chemical structures are very different. The chemical molecular structure of polyethylene is quite stable and extremely difficult to degrade, so it takes 300 years for the plastic bag to be completely decomposed; The chemical structure of polypropylene is not strong, and the molecular chains can easily break, which can effectively degrade and enter the next environmental cycle in a non-toxic form. A non-woven shopping bag can be completely decomposed within 90 days. Moreover, non-woven shopping bags can be reused more than 10 times, and the pollution level to the environment after disposal is only 10% of that of plastic bags.
Disadvantages:
Compared with textile fabrics, the strength and durability are poor.
2. It cannot be cleaned like other fabrics.
3. The fibers are arranged in a certain direction, so they are easy to crack from a right angle, and so on. Therefore, the improvement of production methods is mainly focused on improving the prevention of splitting.
The main fibers used in the production of non-woven fabrics are polypropylene (PP) and polyester (PET). In addition, there are nylon (PA), viscose fiber, acrylic fiber, ethylene fiber (HDPE), and chloroprene fiber (PVC). According to application requirements, non-woven fabrics are divided into two categories: disposable and durable.
PET polyester non-woven fabric
According to the production process, it is divided into:
1. Spunlaced non-woven fabric: The Spunlaced process involves spraying high-pressure micro water onto one or more layers of fiber mesh, causing the fibers to intertwine with each other, thereby strengthening the fiber mesh and providing a certain degree of strength.
2. Heat-bonded non-woven fabric: Heat-bonded non-woven fabric refers to the addition of fibrous or powdery hot-melt bonding reinforcement materials to the fiber mesh, which is then heated, melted, and cooled to form a fabric.
3. Pulp air flow net forming non-woven fabric: Air flow net forming non-woven fabric can also be called dust-free paper or dry paper making non-woven fabric. It uses airflow mesh forming technology to loosen the wood pulp fiberboard into a single fiber state, and then uses airflow method to aggregate the fibers onto the mesh curtain, and the fiber mesh is reinforced into a cloth.
4. Wet non-woven fabric: Wet non-woven fabric is the process of loosening fiber raw materials placed in a water medium into single fibers, and mixing different fiber raw materials to create a fiber suspension slurry. The suspension slurry is transported to a mesh forming mechanism, and the fibers are formed into a mesh in the wet state and then reinforced into a fabric.
5. Spunbonded non-woven fabric: Spunbonded non-woven fabric is a continuous filament formed by the extrusion and stretching of polymers, which is laid into a web. The web is then self bonded, thermally bonded, chemically bonded, or mechanically reinforced to turn the web into non-woven fabric.
6. Melt blown non-woven fabric: The process of melt blown non-woven fabric includes polymer feeding - melt extrusion - fiber formation - fiber cooling - mesh formation - reinforcement into fabric.
7. Needled non-woven fabric: Needled non-woven fabric is a type of dry process non-woven fabric, which uses the puncture effect of a needle to reinforce a fluffy fiber mesh into a fabric.
8. Stitching non-woven fabric: Stitching non-woven fabric is a type of dry process non-woven fabric, which uses warp knitted coil structure to reinforce fiber mesh, yarn layer, non-woven materials (such as plastic sheets, plastic thin metal foil, etc.) or their combination to make non-woven fabric.
9. Hydrophilic non-woven fabric: mainly used for the production of medical and health materials to achieve better hand feel and avoid scratching the skin. Like sanitary napkins and sanitary pads, they utilize the hydrophilic function of hydrophilic non-woven fabrics.
Main purpose
Non-woven fabric
Non woven fabric products are rich in color, bright and bright, fashionable and environmentally friendly, with a wide range of uses, beautiful and generous appearance. They have diverse patterns and styles, and are lightweight, environmentally friendly, and recyclable. They are internationally recognized as environmentally friendly products that protect the Earth's ecology. Suitable for agricultural film, shoe making, leather making, mattress, quilt, decoration, chemical, printing, automotive, building materials, furniture and other industries, as well as clothing lining, medical and health disposable surgical gowns, masks, hats, bed sheets, hotel disposable tablecloths, beauty, sauna and even today's popular gift bags, boutique bags, shopping bags, advertising bags, and so on. Environmentally friendly products have a wide range of uses and are cost-effective. Due to its appearance resembling pearls, it is also known as a pearl canvas.
Non woven fabric is made by using water or air as a suspension medium, including chemical fibers and plant fibers, on a wet or dry papermaking machine. Although it is a fabric and not woven, it is called non-woven fabric. Non woven fabric is a new generation of environmentally friendly materials, with advantages such as good strength, breathability, waterproofing, environmental friendliness, flexibility, non-toxic and odorless, and low price. It is a new generation of environmentally friendly materials that are water repellent, breathable, flexible, non combustible, non-toxic, non irritating, and colorful. If the material is placed outdoors and naturally decomposed, its Maximum life span is only 90 days. If it is placed indoors and decomposed within 8 years, it will be non-toxic and harmless when burning, so it will not pollute the environment. Therefore, environmental protection comes from this.
(1) Medical and sanitary non-woven fabrics: surgical clothes, protective clothing, disinfection wrap, masks, diapers, civilian rags, wiping cloths, wet face towels, magic towels, soft towel rolls, beauty products, sanitary napkins, sanitary pads, disposable sanitary cloths, etc.
(2) Non woven fabrics for home decoration: wall coverings, tablecloths, bed sheets, bed covers, etc.
(3) Non woven fabrics for clothing: lining, adhesive lining, wadding, shaped cotton, various synthetic leather bottoms, etc.
(4) Industrial non-woven fabrics; Base materials, reinforcement materials, polishing materials, filtering materials, insulating materials, cement packaging bags, Geotextile, wrapping cloth, etc. of roof waterproof coiled materials and asphalt tiles.
(5) Agricultural non-woven fabrics: crop protection fabrics, seedling raising fabrics, irrigation fabrics, insulation curtains, etc.
(6) Other non-woven fabrics: space cotton, insulation and soundproofing materials, oil absorbent felt, smoke filter, tea bags, shoe materials, etc.
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clothing use nonwovens 
Medical and health: surgical gowns, hats, masks, plaster cotton pads, women's sanitary napkins, baby diapers, wet face towels, sanitary underwear, dust masks, masks.
Agriculture: Harvest cloth, greenhouse cloth.
Industry: Floppy disk lining, speaker cloth, filter material, speaker sound insulation felt, sealing ring lining, cable cloth, fiberglass reinforced cloth, industrial wiping cloth, shockproof pad, insulation material, tape base lining, pipe base lining, ventilation pipeline, sand cloth.
Packaging: composite cement bags, bag lining, packaging base lining, bedding, storage bags, mobile jacquard bag fabric.
Clothing and shoe making: clothing lining, wadding, hard toe lining, heel lining, underwear, artificial deer skin, synthetic leather, warm shoe lining, cloth shoe sole lining.
Automotive industry: waste textile insulation hot felt, shockproof felt, roof, cushion lining, carpet, door lining, automotive filter element, molded seat cushion.
Household clothing: sofa cloth, carpet, wall covering, mirror wiping cloth, tea bag, vacuum cleaner filter bag, shopping bag, printed bed sheet, social cover, cushion, sleeping bag, dry cleaning cloth, Scouring pad, curtain, table cloth, lampshade, and film covering on the back of rattan mat.
Civil engineering, architecture: reinforcement, reinforcement, filtration, felt base cloth, drainage board, roof waterproofing material, railways, highways, embankments, water slopes, port sound insulation, sewage, heat prevention, separation, drainage.
Other uses: carrier rockets, missile head heat resistant cones, tail nozzle throat liners, high-end banknote printing paper, space shuttle heat-resistant tiles, map cloth, calendar cloth, artificial cloth, oil painting cloth, and so on.