What is meltblown nonwoven?
For high-quality masks, meltblown nonwoven is a common material. The main ingredient in meltblown nonwoven fabric is polypropylene. The fiber diameter can range from 1 to 5 microns. It has fewer voids which makes it fluffier and more wrinkle-resistant. This ultra-fine fiber has a unique capillary structure which increases the number and area of fibers per unit area. It makes meltblown cloth good at filtration, shielding, and insulation, as well as oil absorption functions. They are suitable for use in the areas of air and liquid filter materials, isolation materials water absorption materials, heat insulation materials oil absorption materials, masking materials, wiping cloths, itd.
How are meltblown nonwovens produced?
The main raw material for meltblown nonwovens is polypropylene. The melt-molten polymer stream is extruded by the die nozzle and drawn by a high-speed hot air stream. These ultra-fine fibers are then gathered on the curtain of the condensation network, or drum, and bonded to each other to form meltblown nonwoven. Meltblown nonwoven has a flat, white appearance and is soft to the touch. The material's fiber fineness ranges from 0.5 to 1.0 um. Because of the random distribution of fibers, meltblown gas filter material has a higher specific surface area and void ratio (>=75%). The product's characteristics include low resistance, high efficiency, and high dust capacity. sciencedirect.com
The production process for meltblown nonwoven fabric.
- Polymer feed.
- Melt extrusion.
- Fiber formation.
- Fiber cooling
- Network formation.
- Increase strength of the cloth
What is meltblown nonwoven?
- Filtration material
Filtration is the process of separating the particles from the liquid or gas. Nonwoven fabric that has been melted is fine in fiber and has many pores. It is used for gas filtration.
Gas filtration: indoor air conditioning filter materials, media, medical masks, and filter media. The fiber's fineness can be decreased and the density can be increased to increase the filtration effect. However, this will result in a significant increase in filter material. Permeation resistance.
Static level treatment is a method of treating meltblown nonwoven materials with static electricity. This can increase its filtration efficiency through the electrostatic effect.
The pressure-resistant, meltblown nonwoven horizontal treatment offers high filtration effectiveness and low resistance. It has a long-lasting electrostatic force that can trap fine dust.
2, Medical health materials
Medical masks: The inner and outer layers of medical masks are made from spunbond material. The heavy armor is made from composite material that has been meltblown material (SMS).
Meltblown nonwoven fabric is the most current high-end form of meltblown fabric and is the key layer that filters bacteria, viruses, and microdust from the mask cloth.
- Materials that absorb oil
PP meltblown nonwoven has been extensively used in Europe and America due to its material properties and ultrafine fiber structure. It is a good material for oil absorption and has been widely utilized in Europe, America, and Japan, as well as oil spills at sea and oil equipment oil spillages, sewage treatment, and so on.
The characteristics of polypropylene meltblown nonwoven fabric are hydrophobic, oleophilic, and resistant to strong acid, alkali, and with a density less than water. It can float on water for long periods without deformation after oil absorption. This fabric can also be recycled and stored for a long period. Nonwoven fabric made from pp meltblown is used to make oil-absorbing ropes, chains, pillows, and other products. You can increase the oil-absorbing capacity by up to 10-50 times your own weight.
- Warm material
Warm material (clothing material), has high warmth and can be used longer without losing its warmth. The pp meltblown nonwoven fabric is light, thin, warm, soft, warm, and breathable. It solves the problem of military winter clothes warmth outside large, inside small.
Material for the battery diaphragm
The battery's diaphragm material, which is often located between the positive or negative plates, is an important component. Its main function is to protect the negative and positive plates to allow dielectric to flow. The polypropylene material is resistant to acid and alkali energy.
Porous microfiber material, also known as battery diaphragm or battery diaphragm, separates each positive and negative electrode plate. This fiber material is used to electrochemically transfer liquid and gas phases and channel them through the switch channel.
What are the safety standards for meltblown fabrics used in masks?
Nonwovens made from meltblown melt are safe for the commercial production of masks. However, meltblown fabrics can be of different quality. Meltblown fabrics with greater bacterial filtration efficiency than 95% or greater than or equal to 99% are the most common. Masks cut off viruses' transmission channels such as saliva droplets, saliva, and aerosols. The masks can be used as long as both conditions are met.
Is meltblown nonwoven fabric made in which country?
China is the largest producer of nonwovens in the world, but meltblown nonwovens are relatively rare.
How much is a tonne of meltblown nonwoven worth?
The core fabric of masks is meltblown nonwovens. Now, the market price has stabilized. Medical masks have a multi-layered structure, white fusion blocks, fluffy structures, and excellent wrinkle resistance. Polypropylene's edges can produce tons of particles with different filtration indexes. Contact our product manager to find out the cost of one-ton meltblown nonwoven. Boshun, a top meltblown nonwoven manufacturer from China, will give you detailed answers and suggestive options.