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What is "nonwoven" and "spun-bonded non-woven"? What is the difference between them?
non-woven fabric, also known as non-woven fabric, is composed of oriented or random fibers. Because of its appearance and certain properties, it is called cloth.
non-woven fabrics are moisture-proof, breathable, flexible, lightweight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color, inexpensive, and reusable. Polypropylene (PP material) pellets are mostly used as raw materials, which are produced by continuous one-step method of high temperature melting, spinning, spreading, and hot pressing.
01, non-woven fabric characteristics:
Because it is a fabric that does not require spinning and weaving, it is simply oriented or randomly arranged textile short fibers or filaments to form a web structure, which is then reinforced by mechanical, thermal bonding or chemical methods. Non-woven fabrics do not have warp and weft threads. They are very convenient for cutting and sewing, and they are lightweight and easy to set.
Non-woven fabrics are not interwoven and braided by individual yarns, but the fibers are directly bonded together by physical methods, so when you get the sticky name in your clothes, you will find , Can't pull out a thread. Non-woven fabrics break through the traditional textile principles, and have the characteristics of short process flow, fast production rate, high output, low cost, wide use, and many sources of raw materials.
02. The relationship between non-woven fabrics and spun-bonded non-woven fabric
Spunbond non-woven fabrics and non-woven fabrics have a subordinate relationship. There are many production processes for the manufacture of non-woven fabrics, of which the spun-bond method is one of the non-woven fabric production processes (including spun-bond method, melt-blown method, hot rolling method, spunlace method, most of which are on the market Non-woven fabric produced by spunbond method).
According to the composition of non-woven fabric, there are polyester, polypropylene, nylon, spandex, acrylic, etc .; different compositions will have completely different non-woven fabric styles. Spunbond nonwoven fabrics usually refer to polyester spunbond nonwoven fabrics and polypropylene spunbond nonwoven fabrics; the styles of these two fabrics are very similar and can only be determined by high temperature testing.
non-woven fabric is a kind of non-woven fabric. It is directly formed by polymer chips, short fibers or filaments through airflow or mechanical web, and then strengthened by spunlacing, needle punching, or hot rolling, and after finishing. Non-woven cloth. The new fiber products with soft, breathable and flat structure have the advantage that they do not produce fiber debris, they are strong, durable, silky and soft, and they are also a kind of reinforcing material. They also have a cotton feel. Compared with cotton fabrics, non-woven Cloth bags are easy to form and cheap to manufacture.
03. Advantages of non-woven fabric:
1. Lightweight: Polypropylene resin is the main raw material for production, with a specific gravity of only 0.9 and only three-fifths of cotton. It is fluffy and feels good.
2. Softness: It is composed of fine fibers (2-3D), light spot-like hot-melt bonding. The finished product is moderately soft and comfortable.
3. Water-repellent and breathable: polypropylene chips are non-absorbent and have zero water content. The finished product has good water-repellent properties and is made of fibers with porosity and good permeability. It is easy to keep the cloth dry and easy to wash.
4. Non-toxic and non-irritating: The product is produced with FDA food-grade raw materials, does not contain other chemical ingredients, has stable performance, non-toxic, no odor, and does not irritate the skin.
5. Antibacterial and anti-chemical agents: Polypropylene is a chemically passive substance, not moth-eaten, and can isolate the erosion of bacteria and insects in the liquid; antibacterial, alkali corrosion, and finished products do not affect the strength due to erosion.
6. Antibacterial properties. The product is water-removing, not moldy, and can isolate the erosion of bacteria and insects in the liquid, and is not moldy.
7. Good physical properties. It is made of polypropylene spun directly and thermally bonded. The strength of the product is better than that of general short fiber products. The strength is non-directional and the strength in the vertical and horizontal directions is similar.
8. In terms of environmental protection, the raw material used for most non-woven fabrics is polypropylene, while the raw material for plastic bags is polyethylene. Although the two substances have similar names, they are far from each other in chemical structure. The chemical molecular structure of polyethylene is quite stable and extremely difficult to degrade, so the plastic bag takes 300 years to decompose; and the chemical structure of polypropylene is not strong, and the molecular chain can be easily broken, which 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 more than 10 times, and the environmental pollution after disposal is only 10% of the plastic bags.
04. Disadvantages of non-woven fabric:
1. Compared with woven cloth, its strength and durability are poor.
2. It cannot be cleaned like other fabrics.
3. The fibers are arranged in a certain direction, so it is easy to split from the right angle and so on. Therefore, the improvement of production methods is mainly placed on the improvement of preventing division.
After the above introduction, do you know the difference between spunbond nonwoven fabric and nonwoven fabric? If you do n’t know, it does n’t matter. You can come to Dongyang Lai Chi Environmental Protection Technology Co., Ltd. to see the difference between non-woven fabrics and spun-bonded non-woven fabric.
Lai Chi is a professional non-woven fabric manufacturer for many years. Its main products include spun-bonded non-woven fabric, non-woven fabric, elastic nonwoven fabric, medical non-woven fabric, etc., if you have any needs and problems, you can come to consult.
If you want to know more product information, please contact: Mr. Zhu 13706796423 Website: http://m.cnliequan.cn/En_index.html