- Contact：kelvin Xiong
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- E-mail：Kelvin@alnonwoven.com
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In the non-woven fabric manufacturing method, the spunbond method has obvious advantages in terms of manufacturing technology, product performance and production efficiency, and it has achieved remarkable development in the past 20 years.
The research on spunbonded nonwovens was carried out in the late 1950s by the simultaneous development and production of industrialization by DuPont and Freudenberg in the United States and Europe. Then in the late 1960s, the world began to produce spunbond non-woven fabrics. Sakamoto started in the 1970s, and the Asia-Pacific region began production in the mid-1980s with technology introduction as its starting point.
The important reason for the rapid development of spunbonding method is that it uses synthetic polymer as raw material. The method utilizes the principle of chemical fiber spinning, and continuous filaments are produced in the process of polymer spinning, which are directly bonded after being formed into a net after spinning. non-woven fabric, the manufacturing method is very simple and fast, compared with the dry non-woven processing technology, eliminating a series of cumbersome intermediate processes such as fiber curling, cutting, packing, transporting, mixing, combing, etc. The significant effect of batch production is to reduce the cost of spunbond products, stable quality, and strong market competitiveness. It can enter the market of textiles, paper and film in various applications such as disposable and durable.
At present, about 40% to 50% of the production of non-woven fabrics adopts the melt spinning method (including the spunbonding method, the melt-blown method and the composite method of the two), and the melt spinning production method is used in the total output of each region. The proportion is 50% in the United States, 37% in Europe, and 41% in transcripts. It can be seen from the data that the advanced countries use the melt spinning method as the main production method of non-woven fabrics.
Secondly, since spunbonded nonwoven fabrics use polypropylene as a main raw material, many advantages in terms of price, processing, and production cost have greatly promoted the continuous development of the spunbond nonwoven fabric industry.
In addition, the spunbonded nonwoven fabric has excellent mechanical properties, and its tensile strength, elongation at break, tear strength and other pointers are superior to dry, wet and meltblown nonwovens, especially in recent years. The rapid development of scale, technology and equipment, and product market development has greatly expanded the application of spunbond nonwovens.
The difference between the spunbond production process and the chemical fiber spinning is that air drafting and direct web forming are adopted. Therefore, the drafting of the spunbonding method becomes a core technical problem. The conventional drafting method adopts a mechanical drafting method. The wire is thicker and the laying is uneven. At present, the world's spunbond production equipment has adopted air drafting technology. Due to different air drafting methods, there are three different forms of spunbonding production lines, such as tubular drafting, wide slit drafting, and narrow seaming. Stretching and so on.
The spunbonded nonwoven fabric technology has always been to improve the production line and solve the problems of uniformity, hiding property and rough feeling of the nonwoven fabric, so as to improve the strength, flexibility, uniformity and comfort of the spunbonded nonwoven fabric. Hygroscopic properties.
Dongyang Laichi Environmental Protection Technology Co., Ltd. is based on the concept of “Seiko Quality, Fine Service”. The main production and operation: spunbond non-woven fabric, elastic non-woven fabric, medical non-woven fabric, SSS non-woven fabric, SMS non-woven fabric, etc. , is a professional non-woven fabric manufacturer.
For more product information, please contact: Mr. Zhu 13706796423 Website: http://www.jmyingpai.com/En_index.html