Spunbond non-woven fabrics are hand-woven fabrics that use polymer chips, short fibers or polyester filaments to lay the fibers through cyclones or mechanical equipment, then reinforce them through thermal bonding and finally carding. Spunbond non-woven fabrics have the advantages of being tough, durable, silky soft, soft and breathable.
Advantage:
1. Lightweight: Spunbond non-woven fabrics are made of polypropylene, polyethylene, etc. as the main raw materials. The specific gravity is three-fifths of cotton batting. It has good fluffiness and good touch.
2. Soft: Spunbond non-woven fabric is composed of fine fibers, and its finished products have moderate softness, soft hand feel and good comfort.
3. Breathability: Polypropylene chips are non-hygroscopic and have zero water content. They are composed of 100% fiber and have a porous structure. They have good breathability and can easily keep nylon fabrics comfortable and easy to clean.
4. Non-toxic and non-irritating: Spunbond non-woven fabric is made of non-toxic and harmless raw materials, with stable properties, non-toxic, odorless and non-irritating to the skin.
5. Antibacterial and anti-organic chemicals: Polypropylene is an organic inert substance, does not breed insects, and can prevent the corrosion of bacteria and insects in liquids; it is antibacterial and alkali-resistant, and the finished product will not be harmed by corrosion. strength.
6． Antibacterial properties: Spunbond fabric products are water-repellent and do not grow mold or mildew.
7． Good physical properties: Spunbond non-woven fabrics are made of polypropylene spun yarns that are directly laid into a mesh and thermally bonded. The strength of the product is better than that of ordinary short fiber products. The strength is not specific and the horizontal and vertical strengths are similar.
8. In terms of environmental protection, the raw material of most non-woven fabrics is polypropylene, while the raw material of packaging bags is high-pressure polyethylene. Although the two chemical substances have similar names, they are very different in chemical structure. The molecular formula of high-pressure polyethylene is very stable and difficult to dissolve, so the packaging bag needs 300 years to become degradable; while the chemical structure of polypropylene is not strong, and the molecular chain can be broken easily, so it can effectively It dissolves naturally and enters the next environmental cycle in a non-toxic form. A non-woven packaging bag can be completely dissolved within 90 days. Moreover, non-woven packaging bags can be reused more than 10 times, and the environmental pollution caused by waste is only 10% of that of packaging bags.
Defect:
1) Compared with textile fabrics, spunbond non-woven fabrics have weaker fabric surface strength and usability.
2) Spunbond non-woven fabrics cannot be cleaned like other textile fabrics.
3) The fibers are arranged in a certain direction, so it is easy to crack from diagonal directions.
