Meltblown Nonwoven Machinery
category
Meltblown machinery extrudes polymer melt through a linear die with high-velocity hot air jets on each side that attenuate the extruded streams into extremely fine fibres of 0.5 to 5 micrometres diameter, depositing them as a self-bonded random web through fibre-to-fibre entanglement and thermal bonding, producing the finest fibre diameter nonwovens commercially available for filtration, barrier, and liquid absorption applications.
Role
Provides the enabling production technology for fine filtration and barrier nonwoven materials by producing the submicron to micron diameter fibres that create the small interfibre pore sizes required for efficient particle filtration, liquid barrier, and fluid distribution functions in face masks, respirators, HVAC filtration, SMS composite hygiene fabrics, and medical barrier applications requiring performance levels unachievable with coarser spunbond or drylaid fibres.
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Subtopics
- Meltblown Die Design and Extrusion Mechanics Meltblown dies consist of a linear spinneret row with orifice spacing of 10 to 40 per centimetre and…
- Fibre Diameter Control and Microfibre Production Meltblown fibre diameter is controlled by polymer melt viscosity, polymer throughput per orifice, an…
- SMS and Composite Laminate Production Lines SMS composite nonwoven production lines combine spunbond-meltblown-spunbond layers on a single conti…
- Polymer Rheology for Meltblown Processing Meltblown polymer rheology requires low-viscosity melt flow index resins of 400 to 1500 grams per 10…
- Electrostatic Charging of Meltblown Filter Media Meltblown filtration media electrostatic charging uses corona discharge or hydrocharging processes t…
- Meltblown Web Collection and Bonding Meltblown web collection uses a perforated drum or flat belt collector with vacuum suction maintaini…
- Nanofibre Production by Meltblown Enhancement Nanofibre meltblown production uses modified die designs with sub-100 micrometre orifices, very high…
- Shot and Defect Control in Meltblown Production Shot formation in meltblown produces polymer droplets or beads from die orifices where extrudate spe…
- Filtration Efficiency Testing of Meltblown Media Meltblown filtration efficiency is measured by particle filtration efficiency at 0.3 micrometre NaCl…
- Meltblown for Oil Sorption and Liquid Filtration Polypropylene meltblown fabrics for oil spill sorption exploit the hydrophobic and oleophilic natura…