The sales of non-woven fabrics in North America are close to 120 million US dollars, and the global sales are close to 530 million US dollars.

Author: Date: 2020-01-19 07:58:22 Hits: 275 when the plant accumulate a lot of fine particles in the air, the filter to reduce particulate emissions and prevent spontaneous explosion. Although the pleated dust filter cartridge is an alternative to the needle-punched bag filter, the needle-punched filter bag is still an obvious industry in terms of dollars. Needlefefelt's sales in North America are close to 120 million U.S. dollars, and in the world it is close to 530 million U.S. dollars. So far, China is the main driving force for its growth. Approximately 10% of the bag filter chamber needle-punched fabric is laminated with PTFE membrane, which can provide better filtering effect and/or longer bag life. In addition, in liquid filter bags, the value of micron-level needle punched fabrics is approximately US$25-30 million in North America and approximately US$65 million in the world. For liquid applications, non-woven filter bags can be used as the final filter, and in some cases can also be used as a pre-filter, thereby extending the service life of the final filter in a heavily polluted stream. The nanofiber pleated dust collection and engine air intake filter in the filtration are used in more and more applications. The base substrate of wet cellulose or polyester non-woven fabric is covered with a lightweight synthetic nanofiber cover layer. The diameter of nanofibers is as small as 200 to 300 nanometers (nm), and the amount of nanofiber additional materials is very thin in cross section, usually weighing less than 1 g/m2 to 2 g/m2. Using an electrospinning process, in one case, an ultrafine meltblown process is used to lay the nanofibers on the material that will become the upstream side of the substrate. These nanofibers create a labyrinth of fibers with pores smaller than the particles in the incoming air stream. The particles are deposited and left on the surface of the fine nanofiber mesh, allowing users to clean the filter by throwing off loose particles on the surface or using an automatic cleaning air recoil system. The market is growing rapidly and is becoming an important market area. All major suppliers of air filters for the automotive and dust collection markets have adopted internal manufacturing processes or have obtained nanofiber media from external suppliers. According to the latest statistics, more than 30 companies worldwide have adopted the electrospinning manufacturing process, but only a few have a considerable commercial scale. Many people aim to produce a heavier independent nanofiber web of 15 to 90 g/m2 without a cellulose or polyester base substrate. The main goal is to create filter media to fill better micron grade gap meltblown media and microporous membranes. Some manufacturers try to simulate the micron scale of microporous membranes at higher flow rates. Considering the manufacturing cost, the relatively low electrospinning production speed is very suitable for the substrate in the lightweight cover layer. Dust collection and engine intake filters, because these applications require only a few grams of fiber to cover the base substrate. Therefore, the heavier electrospun web remains a challenge because of its low process yield and high production cost compared to other filter media options. However, air filtration media manufacturers have made some progress in trying to replace the glass media in MERV 17-20 HEPA applications. The potential of nanofiber nonwoven filter media in applications in the range of MERV 10-16 and in liquid applications is obviously still a greater untapped potential. Should adopt low-cost and/or alternative electrospinning manufacturing processes. If 15 to 60 g/m2 nanofiber filter media ($3 to $5 per pound) can be produced, then a successful manufacturer will face a huge opportunity. 34 Related Tags: Previous: Spunbond nonwovens market is expected to grow from US$12.7 billion in 2018 to US$18.3 billion in 2023