Development History And Technological Progress Of China's Meltblown Nonwoven Fabric

Let's talk about the development history and technological progress of China's meltblown nonwoven fabric

The initial stage of meltblown nonwoven:

Meltblown nonwoven fabric is an important variety developed earlier in the international non woven fabric, and its development can be traced back to the 1950s of the last century. At that time, around the nuclear test to capture radioactive particles in the atmosphere, the United States Naval Research Institute proposed in 1951 to develop a method for manufacturing non woven fabric roll made of organic fibers with a fiber diameter of less than 1 µ for filtering radioactive particles in the atmosphere. In the early 1960s, Exxon Corporation of America successfully manufactured the first large - scale meltblowing device that basically met the above requirements. By the late 1960s and early 1970s, Exxon had transferred its successful meltblown technology to Accurate Product  (USA, later merged with Leifen ), J & M Laboratories ( USA, later merged with Nordson, and now Nordson was merged with Neumag Saurer Mergers ) and Reifenhauser ( Germany ) and other nine companies. Meltblown products quickly entered the civilian market and quickly achieved industrial production. Exxon's technology transfer does not focus on transfer fees, but on meltblown companies purchasing its special polypropylene chips. In 1984, Exxon also provided two meltblown test equipment to the University of Tennessee in the United States to further research and develop meltblown technology. In 1989, the two jointly established the Textile and Nonwoven Research and Development Center ( TANDEC ). 

Since then, the University of Tennessee has become a nonwoven technical research and education center. In 1995, the world's annual output of meltblown nonwovens reached 80,000 to 100,000 tons, accounting for 4 - 4.7 % of that year's non woven fabric production. At the same time, when used for medical and health purposes, in response to the problem of low strength of melt blown nonwoven, companies such as Kimberly of the United States have successfully developed SMS products of spunbond and melt - blown composites. At that time, several major international manufacturers of SMS The production capacity of the product has exceeded that of pure meltblown products.
China's research on meltblown nonwovens also originated from the Second Institute of the Ministry of Nuclear Industry, which is responsible for nuclear technology research. Around the end of the 1950s and early 1960s, the Second Institute of the Ministry of Nuclear Industry and the Beijing Institute of Synthetic Fiber Technology also developed melt - blown equipment that obtains ultrafine fiber nonwovens, but this equipment is intermittent. Next, the industrial production of meltblown nonwoven fabric began. In addition to processing protective masks, gas masks, and other products, it also processed various filters, battery separators, and other products. Later, China Textile University and Beijing Chaolun Co., Ltd. also produced batch - type meltblown equipment in batches and developed it mainly for civilian use. At that time, a number of domestic enterprises used these equipment to produce melt - blown products such as battery separators, filter elements, mask materials, thermal insulation materials, and oil-absorbing materials. By the late 1960s and early 1970s, the number of Chinese intermittent melt - blown equipment had reached 200. Above, the production capacity of each equipment is about 20 - 80 tons / year. In 1995, the production capacity of the national meltblown equipment has reached 10,000 tons / year. The actual output ( including manufactured products ) is 0.35 million tons. The actual output in 1996 More than 4000 tons, these productions are mainly provided by intermittent equipment, and the continuous meltblown equipment produced less than 1,000 tons in 1996. The development of continuous meltblown equipment was later than the intermittent type in China. About 92 - 94, Anhui Aohong, Tianjin Meilun ( the predecessor of TEDA ), and Jiangyin Jinfeng successively introduced continuous production lines from the United States and Germany. 

In 2006, the output of meltblown nonwovens in China exceeded 20,000 tons, of which about 70 % was produced by continuous meltblown equipment. Due to the high single-line output of continuous melt - blown equipment, the use of fewer people, and convenient management, the future development of meltblown nonwoven fabric production will mainly refer to the development of continuous melt - blown equipment.