Characteristics and advantages of polypropylene spunbonded non-woven fabric
Characteristics and advantages of polypropylene spunbonded non-woven fabric. Polypropylene spunbonded non-woven fabric is a kind of non-woven fabric, which uses polypropylene as raw material, is brushed and aggregated into a net at high temperature, and then glued into a synthetic fabric by hot rolling method.
Due to the simple process and large output, it is non-toxic and harmless to human body.
Therefore, it is widely used in various fields such as sanitary materials.
Characteristics and advantages the important reason for the rapid development of spunbond method is that it uses synthetic polymer as raw material. This method uses chemical fiber spinning principle to continuously filament during polymer spinning, after being sprayed into a net, it is directly bonded to make a non-woven fabric. The manufacturing method is very simple and fast. Compared with the dry non-woven fabric processing technology, eliminating a series of cumbersome intermediate processes such as fiber curling, cutting, packaging, transporting, mixing, and combing, the most significant effect of this continuous and large-scale production is to reduce the cost of spunbond products, stabilize the quality and have strong market competitiveness, it can enter the market for textiles, paper and films in various uses of discard and durability.
Secondly, because the spunbonded non-woven fabric uses polypropylene as the main raw material, it has many advantages in terms of price, processing process and production cost, it also greatly promoted the sustainable development of the spunbond non-woven fabric industry.
In addition, the spunbond non-woven fabric products have excellent mechanical properties, and their tensile strength, fracture elongation, tear strength and other pointers are better than dry, wet and blown non-woven fabrics, especially in recent years, the rapid development of spunbond method in production line scale, technology and equipment as well as product market development has greatly expanded the application field of spunbond non-woven fabrics.
The biggest difference between the spunbond production process and the chemical fiber spinning is the use of airflow drafting and direct mesh formation. Therefore, the drafting of the spunbond method has become a technical core issue. In the past, the drafting method was mechanical drafting, the fiber monofilament is thicker and the net is uneven.
At present, spunbond production equipment all over the world has adopted airflow drafting technology. Due to different airflow drafting methods, there are three different forms of spunbond production lines, tube drafting, wide slit drafting, narrow slit drafting, etc.
Spunbonded non-woven fabric technology has always been to improve the capacity of the production line and solve the problems of non-woven fabric uniformity, concealer, rough feel, etc, in order to improve the strength, softness, uniformity, comfort and hygroscopicity of spunbond non-woven fabrics.
Fine Danhua spunbonded non-woven fabrics can directly improve the softness and comfort of spunbonded non-woven fabrics.
However, there are technical bottlenecks in the fine danization of the spunbond method. For example, fine danization can increase the number of fibers per unit area of spunbond non-woven fabrics, the 'binding point' between fiber and fiber will increase, the product will become more uniform, and the coverage rate will also increase.
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