Non woven fabrics, also known as needle punched , needle punched non-woven fabrics, etc., are made of polyester fiber and polyester fiber (PET) through needle punching process, which can make different thickness, hand feel, hardness, etc.

Non woven fabric has the characteristics of moisture-proof, breathable, flexible, light and thin, flame retardant, non-toxic and tasteless, low price, recyclable and so on. It can be used in different industries, such as sound insulation, heat insulation, electric heating film, mask, clothing, medical, filling materials, etc

Non woven fabrics have no warp and weft threads. They are very convenient for cutting and sewing. They are light and easy to set. They are deeply loved by manual lovers.

Because it is a fabric formed without spinning and weaving, it is only formed by directional or random arrangement of textile short fibers or filaments to form a fiber web structure, and then reinforced by mechanical, thermal bonding or chemical methods.

It is not interwoven and braided by yarns one by one, but the fibers are directly bonded together by physical methods. Therefore, when you get the adhesive scale in your clothes, you will find that you can't pull out thread ends one by one. Nonwovens break through the traditional textile principle, and have the characteristics of short process flow, fast production rate, high output, low cost, wide application and many sources of raw materials.

Relationship between non-woven fabric and spunbonded fabric

Spunbonded nonwoven fabric

Spunbonded fabric and non-woven fabric are subordinate. There are many production processes for the manufacture of non-woven fabrics, among which spunbonded method is one of the non-woven fabric production processes (including spunbonded method, melt blown method, hot rolling method and Spunlaced method. Most of the non-woven fabrics on the market are produced by spunbonded method)

According to the composition, non-woven fabrics include polyester, polypropylene, nylon, spandex, acrylic, etc; Different components will have different non-woven styles. Spunbonded fabrics usually refer to polyester spunbonded and polypropylene spunbonded; The styles of these two kinds of cloth are very similar, which can be distinguished only through high-temperature test.

Non woven fabric is a kind of non-woven fabric, which is a non-woven fabric formed by directly using polymer chips, short fibers or filaments to form a network through air flow or machinery, then through water pricking, needling, or hot rolling reinforcement, and finally after finishing. The new fiber product with soft, breathable and planar structure has the advantages of no fiber chips, strong, durable and silky softness. It is also a kind of reinforcing material, and has the feeling of cotton. Compared with cotton products, non-woven bags are easy to form and cheap.

advantage:

1. Light weight: polypropylene resin is used as the main raw material, with a proportion of only 0.9, only three fifths of that of cotton. It is fluffy and feels good.

2. Soft: it is composed of fine fibers (2-3D) and formed by light spot hot melt bonding. The finished product has moderate softness and comfort.

3. Water drainage and air permeability: polypropylene chips do not absorb water, have zero moisture content, and the finished product has good water drainage. It is composed of 100% fiber, has porosity and good air permeability, and is easy to keep the cloth dry and easy to wash.

4. It can purify the air and keep bacteria and viruses out by taking advantage of small pores.

5. Non toxic and non irritating: the product is made of food grade raw materials conforming to FDA, does not contain other chemical components, has stable performance, is non-toxic, has no peculiar smell and does not stimulate the skin.

6. Antibacterial and anti chemical agents: polypropylene is a chemical blunt substance, which is not eaten by insects, and can isolate the erosion of bacteria and insects in the liquid; Antibacterial, alkali corrosion, finished products will not affect the strength due to erosion.

7. Antibacterial property. The product has water pulling property, is not moldy, and can isolate the erosion of bacteria and insects in the liquid, and is not moldy.

8. Good physical properties. It is made of polypropylene spinning, directly laid into a net and thermally bonded. The strength of the product is better than that of general staple fiber products. The strength has no directionality and the longitudinal and transverse strength is similar.

9. In terms of environmental protection, the raw material of most non-woven fabrics used is polypropylene, while the raw material of plastic bags is polyethylene. Although the names of the two substances are similar, they are very different in chemical structure. The chemical molecular structure of polyethylene is very stable and difficult to degrade, so it takes 300 years for plastic bags to decompose; The chemical structure of polypropylene is not firm, the molecular chain can be easily broken, so it can be effectively degraded, 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 for more than 10 times, and the pollution to the environment after abandonment is only 10% of that of plastic bags.

Disadvantages:

1. Poor strength and durability compared with textile cloth.

2. It cannot be cleaned like other cloth.

3. The fibers are arranged in a certain direction, so they are easy to crack from the right angle, etc. Therefore, the improvement of production methods mainly focuses on the improvement of preventing division.