Melt-blown process is a step by step process in which high-velocity air blows a molten thermoplastic resin from an extruder die tip onto a conveyor or take-up screen to form a fine fibrous and self-bonding web. The fibers in the melt blown web are laid together by a combination of entanglement and cohesive sticking.
LeapThree's Meltblown filter media attributes & properties:
Random fiber orientation with smooth surface texture and circular cross-section.
Polymer options like PBT, PET, PP and PLA available basis attributes required for different end applications.
Lower to moderate web strength, deriving strength from mechanical entanglement and frictional forces.
Generally high opacity (having a high cover factor).
Fiber diameter ranging from 0.5 to 30 µm (multi-layer), but typically from 2-7µm.
A basic weight ranging between 10 and 350 g/m2 (multi-layer), typically 10-100 g/m2.
Lower diameter fibers provide larger surface area for better Filtration & Insulation characteristics.