Characteristics and advantages of PP Spunbond Nonwovens

PP spunbonded non-woven fabric is a kind of non-woven fabric, which is made of PP and polymerized into net by high temperature drawing and then bonded into cloth by hot rolling. Because of the simple process, large output, non-toxic and harmless to human body. Therefore, it is widely used in various fields such as sanitary materials.


Characteristics and advantages of PP Spunbond Nonwovens


Features and advantages


The important reason for the rapid development of spunbond is that it uses synthetic polymer as raw material. This method makes use of the principle of chemical fiber spinning, continuous filament in the process of polymer spinning, after being spun into a net, it is directly bonded to make non-woven fabric. The manufacturing method is very simple and fast. Compared with the dry non-woven fabric processing technology, the fiber crimping, cutting, packing, transportation, mixing and carding are omitted A series of complicated intermediate processes, such as continuous, mass production, the most significant effect is to reduce the cost of spunbond products, stable quality, strong market competitiveness, in the use and discard and durability of various uses can enter the market of textiles, paper and film. Secondly, polypropylene is widely used as the main raw material of spunbond nonwovens, which has many advantages in price, processing process, production cost and so on, and greatly promotes the sustainable development of spunbond nonwovens industry. In addition, the mechanical properties of spunbonded nonwovens are excellent, and their tensile strength, breaking elongation, tearing strength and other indicators are superior to those of dry, wet and melt blown nonwovens. Especially in recent years, the rapid development of spunbonded nonwovens in production line scale, technology, equipment and product market development has greatly expanded the application field of spunbonded nonwovens. The biggest difference between spunbond production process and chemical fiber spinning is the use of air draft and direct netting. Therefore, the draft of spunbond method has become a technical core issue. The former draft is mechanical draft, the single fiber is relatively thick, and the netting is uneven. At present, the air draft technology has been used in the production equipment of spunbond all over the world. Due to the different air draft methods, there are three different forms of spunbond production line, including tube draft, wide and narrow draft, narrow draft, etc. Spunbond non-woven technology has always been to improve the capacity of the production line and solve the problems of uniformity, covering and rough handle of non-woven fabric, so as to improve the strength, softness, uniformity, comfort, moisture absorption and other properties of spunbond non-woven fabric.


It can directly improve the softness and comfort of spunbond. However, there is a technical bottleneck in the fine-grained spunbond process. For example, the fine-grained process can increase the number of fibers in the unit area of spunbond non-woven fabric, the "joint point" between fibers will increase, the products will become more uniform, and the coverage will also increase.