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What is meltblown non-woven fabric
by：Sunshine
2021-04-05
Melt blown cloth is mainly made of polypropylene, and the fiber diameter can reach 1 to 5 microns. There are many voids, fluffy structure, and good anti-wrinkle ability. These ultra-fine fibers with unique capillary structure increase the number and surface area of u200bu200bfibers per unit area, so that the meltblown cloth has good filtration, shielding, heat insulation and oil absorption. . It can be used in air, liquid filter materials, isolation materials, absorbing materials, mask materials, thermal insulation materials, oil absorbing materials and wiping cloths.
The process of melt-blown non-woven fabric: polymer feeding --- melt extrusion --- fiber formation --- fiber cooling --- forming a net --- strengthening into cloth.
Application range
(1) Medical and sanitary cloths: surgical gowns, protective clothing, disinfection wraps, masks, diapers, sanitary napkins, etc.;
(2) Home decoration cloth: wall cloth, table cloth, bed sheet, bedspread, etc.;
(3) Clothing fabrics: lining, adhesive lining, wadding, shaped cotton, various synthetic leather base fabrics, etc.;
(4) Industrial cloth: filter material, insulating material, cement packaging bag, geotextile, covering cloth, etc.;
(5) Agricultural cloth: crop protection cloth, seedling raising cloth, irrigation cloth, thermal insulation curtain, etc.;
(6) Others: space cotton, thermal insulation materials, linoleum, cigarette filters, tea bags, etc.
Meltblown cloth can be called the 'heart' of medical surgical masks and N95 masks.
Medical surgical masks and N95 masks generally adopt a multi-layer structure, referred to as SMS structure: the inner and outer sides are single-layer spunbond layers (S); the middle is the meltblown layer (M), generally divided into single layer or multiple layers Floor.
Flat masks are generally PP spunbond+meltblown+PP spunbond, but one layer can also be replaced with staple fiber to improve the skin touch. Three-dimensional cup-shaped masks are generally PET polyester needle punched cotton + melt blown + needle punched cotton or PP spunbond. Among them, the outer layer is a non-woven fabric with waterproof treatment, which is mainly used to insulate the droplets sprayed by the patient; the middle melt-blown layer is a special-treated melt-blown non-woven fabric, which has good filtering and shielding properties , Heat insulation and oil absorption, are important raw materials for the production of masks; the inner layer is ordinary non-woven fabric.
Although the spunbond layer (S) and meltblown layer (M) of the mask are non-woven fabrics, and the raw materials are polypropylene, the manufacturing process is different.
Among them, the fiber diameter of the spunbond layer on the inner and outer sides is relatively thick, about 20 microns; the diameter of the meltblown layer in the middle is only 2 microns, which is made of a polypropylene material called high-melting fat fiber.
China is the world's largest producer of non-woven fabrics. In 2018, the production of non-woven fabrics was about 5.94 million tons, but the output of melt-blown non-woven fabrics was very low.
According to the statistics of China Industrial Textile Industry Association, the production process of China's nonwoven fabric industry is mainly spunbond. In 2018, the output of spunbond nonwovens was 2,971,200 tons, accounting for 50% of the total output of nonwovens, mainly used in sanitary materials and other fields; the meltblown process accounted for only 0.9%.
It is estimated from this that in 2018, the domestic output of meltblown nonwovens was 53,500 tons/year. These meltblown cloths are used not only for masks, but also for environmental protection materials, clothing materials, battery diaphragm materials, wiping materials, etc.
Under the epidemic, the demand for masks has increased significantly. According to the data of the Fourth National Economic Census, the total employed population of domestic legal entities and self-employed households is as high as 533 million. Based on one mask per person per day, at least 533 million masks are needed every day.
According to data from the Ministry of Industry and Information Technology, currently, the maximum daily production capacity of domestic masks is 20 million.
There is a huge gap in masks, and many companies have begun to produce masks across borders. According to the data from Tianyan Check and based on the information on changes in industrial and commercial registration, from January 1 to February 7, 2020, more than 3,000 companies across the country have added 'masks, protective clothing, disinfectants, thermometers, medical 'Apparatus' and other businesses.
The process of melt-blown non-woven fabric: polymer feeding --- melt extrusion --- fiber formation --- fiber cooling --- forming a net --- strengthening into cloth.
Application range
(1) Medical and sanitary cloths: surgical gowns, protective clothing, disinfection wraps, masks, diapers, sanitary napkins, etc.;
(2) Home decoration cloth: wall cloth, table cloth, bed sheet, bedspread, etc.;
(3) Clothing fabrics: lining, adhesive lining, wadding, shaped cotton, various synthetic leather base fabrics, etc.;
(4) Industrial cloth: filter material, insulating material, cement packaging bag, geotextile, covering cloth, etc.;
(5) Agricultural cloth: crop protection cloth, seedling raising cloth, irrigation cloth, thermal insulation curtain, etc.;
(6) Others: space cotton, thermal insulation materials, linoleum, cigarette filters, tea bags, etc.
Meltblown cloth can be called the 'heart' of medical surgical masks and N95 masks.
Medical surgical masks and N95 masks generally adopt a multi-layer structure, referred to as SMS structure: the inner and outer sides are single-layer spunbond layers (S); the middle is the meltblown layer (M), generally divided into single layer or multiple layers Floor.
Flat masks are generally PP spunbond+meltblown+PP spunbond, but one layer can also be replaced with staple fiber to improve the skin touch. Three-dimensional cup-shaped masks are generally PET polyester needle punched cotton + melt blown + needle punched cotton or PP spunbond. Among them, the outer layer is a non-woven fabric with waterproof treatment, which is mainly used to insulate the droplets sprayed by the patient; the middle melt-blown layer is a special-treated melt-blown non-woven fabric, which has good filtering and shielding properties , Heat insulation and oil absorption, are important raw materials for the production of masks; the inner layer is ordinary non-woven fabric.
Although the spunbond layer (S) and meltblown layer (M) of the mask are non-woven fabrics, and the raw materials are polypropylene, the manufacturing process is different.
Among them, the fiber diameter of the spunbond layer on the inner and outer sides is relatively thick, about 20 microns; the diameter of the meltblown layer in the middle is only 2 microns, which is made of a polypropylene material called high-melting fat fiber.
China is the world's largest producer of non-woven fabrics. In 2018, the production of non-woven fabrics was about 5.94 million tons, but the output of melt-blown non-woven fabrics was very low.
According to the statistics of China Industrial Textile Industry Association, the production process of China's nonwoven fabric industry is mainly spunbond. In 2018, the output of spunbond nonwovens was 2,971,200 tons, accounting for 50% of the total output of nonwovens, mainly used in sanitary materials and other fields; the meltblown process accounted for only 0.9%.
It is estimated from this that in 2018, the domestic output of meltblown nonwovens was 53,500 tons/year. These meltblown cloths are used not only for masks, but also for environmental protection materials, clothing materials, battery diaphragm materials, wiping materials, etc.
Under the epidemic, the demand for masks has increased significantly. According to the data of the Fourth National Economic Census, the total employed population of domestic legal entities and self-employed households is as high as 533 million. Based on one mask per person per day, at least 533 million masks are needed every day.
According to data from the Ministry of Industry and Information Technology, currently, the maximum daily production capacity of domestic masks is 20 million.
There is a huge gap in masks, and many companies have begun to produce masks across borders. According to the data from Tianyan Check and based on the information on changes in industrial and commercial registration, from January 1 to February 7, 2020, more than 3,000 companies across the country have added 'masks, protective clothing, disinfectants, thermometers, medical 'Apparatus' and other businesses.
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