3-Layer Face Mask suppliers

When both the particle size and the air flow velocity are large, the air flow closes to the filter material due to obstruction and flows around, while the particles are separated from the streamline due to inertia and directly collide with the fiber to be captured.

When the particle size is very small and the flow velocity is very low, the particles are trapped on the fibers due to the diffusion of Brownian motion and captured.

02 Electrostatic adsorption

Electrostatic adsorption means that when the fibers of the filter material are charged, the particles can be captured by the Coulomb force of the charged fibers (electret). When particles such as dust, bacteria, viruses, etc. pass through the filter material, the electrostatic force can not only effectively attract the charged particles, but also capture the induced polarized neutral particles with the electrostatic induction effect. As the electrostatic potential increases, the electrostatic adsorption is stronger.

Electrostatic electret process

Since the filtration 3-Layer Face Mask suppliers of ordinary melt-blown non-woven fabrics is less than 70%, the mechanical blocking effect of the three-dimensional fiber assembly of pure melt-blown ultrafine fibers with fine fibers, small voids and high porosity is not enough, so melt-blown filter materials Generally, the electrostatic charge effect is added to the meltblown cloth through the electrostatic electret process, and the filtration efficiency is improved by using the electrostatic method, so that the filtration efficiency can reach 99.9% to 99.99%, and the thin layer can reach the expected standard. Breathing resistance is still small.

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