Meltblown nonwoven fabrics and SMS composites, manufactured to order
Very fine fibres blown from PP, PBT or TPU; alone or bonded with spunbond as SM, SMS and SMMS.
- Polymers and fibres
- Polypropylene (PP) · Polybutylene terephthalate (PBT) · Thermoplastic polyurethane (TPU)
- Construction
- Monolithic meltblown · SM, SMS and SMMS composites, thermally bonded
- Specify
- Basis weight (GSM), width, colour, treatment and finish, to order. Minimum order: one 40-foot container.
Properties
- Fibres far finer than spunbond
- High filtration efficiency at low pressure drop
- Oil absorbency (PP)
- Chemical and heat resistance (PBT)
- Elastic recovery (TPU)
Applications
- Air filtration and face masks
- Liquid and gas filtration
- Medical barrier fabrics
- Acoustic and thermal insulation
- Oil-only sorbents
- Coating and nano-coating substrates
- Stretch and elastic laminates
Technical notes
Meltblown is produced by extruding molten polymer through fine nozzles into a stream of hot, high-velocity air that stretches the filaments to a fraction of the diameter possible with spunbond. The fibres land as a self-bonded web with very small pores and a very large surface area, which is what makes meltblown the filtration layer in masks and filter media.
Polypropylene meltblown is hydrophobic and oleophilic, so it also forms the core of oil-only sorbents. PBT meltblown withstands higher temperatures and aggressive chemistry and can be made in heavier basis weights for liquid and gas filtration. TPU meltblown is elastic and recovers after stretching, which suits it to medical and apparel laminates.
Because meltblown alone is weak, it is usually sandwiched between spunbond layers and thermally bonded. SM, SMS and SMMS composites combine the barrier of meltblown with the strength and abrasion resistance of spunbond in one fabric.
We manufacture meltblown and its composites to order in the polymer, layer structure, basis weight, width and treatment you specify.