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The face masks are thought to protect healthy people from inhaling infectious droplets as well as reducing the spread from those who are already infected. Non-woven fabric is a primary material used in the manufacturing of medical and surgical masks, it is known as the “heart of the mask”.
Surgical masks have three layers of protection
The middle layer is a melt blown non-woven fabric, which mainly filters the virus, bacteria, dust, and droplets in the air.
What is Melt-Blown Nonwoven Fabric?
The non-woven fabric means it is produced directly from polymers to fabric without needing an intermediate process like spinning or yarn formation. Disperses molten plastic through high-speed hot air, and spins the polymer melt through the spinneret of the ultra-fine nozzle, making it a high-performance polypropylene melt-blown filter material.
What is the meaning of melt-blown?
Melt-blowing is a unique, one-step process in which the melt of a polymer emerging from orifices is blown into super-fine fibers by hot, high-velocity air. A molten polymer is blown into ultrafine fibers and collected on a rotary drum or a forming belt with a vacuum underneath the surface to form a nonwoven web.
The resulting fabric has a number of desirable properties that include:
Bacterial barrier, cushioning, filtering, flame retardancy, shielding, thermal insulation, and oil absorption, such as mask materials, air, liquid filter materials, thermal insulation materials, insulation materials, sound insulation materials, environmentally friendly oil absorption materials, wipe cloth and other fields.
Equipment List of Melt-Blown Fabric Production Line
Loss-in-weight Feeder
Twin Screw Extruder
Vacuum System
Screen Changer (two sets)
Gear Pump Unit
Heating System for Hot Air
air compressor
Melt-Blown Box (T-Die, Distribution, Spinneret)
Collection Device (Conveyor or Drum)
High-Voltage
Electrostatic Electret Device
Vacuum pump
Winding Machine
Customer case： Melt-Blown non-woven production line, vacuum absorbs cotton shavings before winding.
Recommended products: Oil-free vacuum pump UN-350V, Vacuum Filter VF.002/1
Vacuum: 680mmHg, Open Flow: 350 l/min.
Applications of Melt-Blown Non-Woven Fabric
• Medical and sanitary cloths: surgical gowns, protective clothing, sterilization wraps, masks, diapers, sanitary napkins, etc.
• Fabrics for home decoration: wall stickers, tablecloths, bed sheets, bed covers, etc.
• Cloth for clothing: lining, adhesive lining, flakes, shaped cotton, various synthetic leather base fabrics, etc.
• Industrial fabrics: filter materials, HEPA filters, insulating materials, cement bags, geotextiles, covering fabrics, etc.
• Agricultural cloth: crop protection cloth, seedling raising cloth, irrigation cloth, thermal insulation curtain, etc.
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