Bicomponent polyester spunbond, manufactured to order
PET core with a lower-melting CoPET sheath or tips; bonded through the sheath for strength and abrasion resistance.
- Polymers and fibres
- PET core / CoPET sheath · PET core / CoPET tipped trilobal
- Construction
- Spunbond, thermally bonded through the CoPET component
- Specify
- Basis weight (GSM), width, colour, treatment and finish, to order. Minimum order: one 40-foot container.
Properties
- High cross-direction tensile strength
- Abrasion resistance
- Strong internal bonding
- Uniform, stable web
- Good pleatability and heat resistance
Applications
- Liquid and beverage filtration
- Air filtration substrates
- Automotive
- Industrial and technical textiles
- Coating and lamination substrates
Technical notes
Bicomponent spunbond is extruded from two polyesters at once. A PET core carries the mechanical strength while a co-polyester with a lower melting point forms either a full sheath around it or the tips of a trilobal filament. When the web is thermally bonded, only the CoPET softens, so every filament crossing becomes a bond without damaging the core.
Compared with conventional flat-bonded PET spunbond, the result has markedly higher cross-direction tensile strength, better abrasion resistance and stronger internal bonding, which is why it is specified as a filtration substrate and for parts that are pleated, coated or laminated.
We manufacture bicomponent spunbond to order in the cross-section, basis weight, width and colour your product needs.