Melt blown cloth, commonly known as the "heart" of the mask, is the filter layer in the middle of the mask, which can filter bacteria and prevent the spread of germs. Melt blown cloth is a kind of polypropylene with a high melt index and uses high-speed hot air flow to the die. The thin stream of melt extruded from the spinneret is drawn to form ultra-fine fibers and collected on the net curtain or drum, and at the same time, they adhere to themselves to become a melt-blown non-woven fabric. The fiber diameter can reach 1 to 5 Micrometers.

 · Development trend analysis of melt blown cloth industry

1. Application in the field of air purification

Analysis of the development trend of the meltblown non-woven fabric industry, used in air purifiers, as a sub-efficient and high-efficiency air filter element, and used for coarse and medium-efficiency air filtration with larger flow rates.

It has the advantages of low resistance, high strength, excellent acid and alkali resistance, corrosion resistance, stable efficiency, long service life, and low price. There is no lint from the filter material in the gas after purification.

2. Application in the field of medical and health

The dust-proof port made of meltblown cloth has low breathing resistance, is not stuffy, and has a dust-proof efficiency of up to 99%. It is widely used in hospitals, food processing, mines and other workplaces that require dust and bacteria prevention.

The anti-inflammatory and analgesic film made by the product after special treatment has good air permeability, no toxic side effects, and easy to use. SMS products compounded with spunbond cloth are widely used in the production of surgical clothing and other sanitary products.

3. Liquid filter material and battery diaphragm

Polypropylene melt blown cloth has excellent performance for filtering acidic and alkaline liquids, oils, oils, etc. It has been regarded as a good diaphragm material by the battery industry at home and abroad, and has been widely used, which not only reduces battery costs, but also The process is simplified, and the weight and volume of the battery are greatly reduced.

4. Oil-absorbing materials and industrial wipes

Various oil-absorbing materials made of polypropylene meltblown cloth can absorb oil up to 14-15 times their own weight. They are widely used in environmental protection projects and oil-water separation projects. In addition, they can be used as clean materials for oil and dust in industrial production. These applications give full play to the characteristics of polypropylene itself and the adsorption of ultrafine fibers made by meltblown.

Five, warm materials

The average diameter of meltblown superfine fibers is between 0.5 and 5m, and the specific surface area is large. A large number of fine pores are formed in the cloth, and the porosity is high. A large amount of air is stored in this structure, which can effectively prevent heat loss, has excellent heat preservation, and is widely used in the production of clothing and various thermal insulation materials.

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The new crown epidemic has sounded the alarm for us. In the future, the world will pay more attention to this field of respiratory health. The industry is bound to show explosive growth, and the application prospect of melt blown cloth is immeasurable. Of course, the prerequisite is that quality must pass, and good products are the most important guarantee for profit.

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