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GUANGZHOU JUNQIAN NONWOVEN CO., LTD.
FOSHAN GUIDE TEXTILE CO., LTD.
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Method for improving quality of melt-blown non-woven fabric

Home > News > Product knowledge  > Method for improving quality of melt-blown non-woven fabric

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Guangzhou Junqian Nonwoven Co., Ltd.
Foshan Guide Textile Co., Ltd.

Sales Hotline: + 86-757-85700009
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Email: sales2@guideco.cn
Address: Yonghao Industrial Park, Yongqing Rd., Yanbu, Dali Town, Nanhai Dist., Foshan, G.D. 528247, CHINA

Method for improving quality of melt-blown non-woven fabric

2020-07-14 16:56:08
The melt-blown method is a method for preparing fibers by blowing polymer melts with high-temperature and high-speed airflow to rapidly draw them. After the polymer chips are heated and pressed into a molten state by a screw extruder, they reach the spinneret hole at the front end of the nozzle through the melt distribution flow channel, and after extrusion, they are refined by two converging high-speed and high-temperature airflows to refine . The refined fiber is cooled and solidified on the screen device to form a melt-blown nonwoven fabric.

Continuous melt-blown nonwoven fabric(Medical Meltblown Filter Supplier) production technology has experienced more than 20 years of development in China, and its application fields have expanded from the initial battery separators, filter materials, oil-absorbing materials and thermal insulation materials to medical, health, health care, protection and other fields. Its production technology has also developed from a single meltblown production to a compound direction. Among them, the melt-blown composite material subjected to electrostatic electret treatment can be widely used in the air of electronic manufacturing, food, beverage, chemical industry, airports, hotels and other places due to its characteristics of low initial resistance, large dust holding capacity and high filtration efficiency. Purification and medical high-performance masks, industrial and civil dust filter bags.

Medical Meltblown Filter Supplier, Polypropylene Meltblown Fabrics Manufacturer, Meltblown Nonwovens Vendor Medical Meltblown Filter Supplier, Polypropylene Meltblown Fabrics Manufacturer, Meltblown Nonwovens Vendor

Melt-blown non-woven fabric(Meltblown Nonwovens Vendor) of polypropylene material (a kind of ultra-fine electrostatic fiber cloth, which can catch dust), the pore size and thickness of the fiber affect the filtration effect. Particles of different diameters are filtered by different principles, such as particle volume, impact, and diffusion principles, which are blocked by fibers, and some particles are filtered by electrostatic fibers through the principle of electrostatic attraction. The filtration efficiency test is carried out under the particle size specified in the standard. Different standards will use different sizes of particles for testing. BFE often uses bacterial aerosol particles with an average particle diameter of 3 μm, while PFE generally uses particles with a sodium chloride diameter of 0.075 μm. From the perspective of filtering effect alone, the effect of PFE is higher than that of BFE.

In the standard test of KN95 grade masks, particles with an aerodynamic diameter of 0.3 μm are the test objects, because particles larger or smaller than this diameter are more likely to be intercepted by the filter fibers, and particles with an intermediate size of 0.3 μm are more difficult to filter. Although the virus is very small, it cannot be transmitted in the air alone. It needs droplets and droplet nuclei as carriers to disperse in the air, so it is easy to be filtered out.

The core of the melt-blown cloth(Polypropylene Meltblown Fabrics Manufacturer) technology is: under the premise of reducing the breathing resistance to a minimum, it can also achieve high-efficiency filtration effects, especially the melt-blown cloth above N95, the formula of VFE-level melt-blown cloth for electret masterbatch, the performance of the melt-blown material, The spinning effect of the melt-blown line, especially after the electret masterbatch is added, will affect the thickness and uniformity of the spinning fiber, so low resistance and high efficiency are the core technologies.