Bicomponent Spunbond Nonwoven Fabric

The development of a unique non-woven fabric called the Bicomponent Spunbond. Most if not all non-woven fabrics are made from single component fibre which yields only the characteristics of the material which it was made from. By combining two materials into the filament, the characteristics of each material could be used.

In the case of bicomponent spunbond nonwoven fabric, it is made from two materials in the filament, the inner core of the filament is made from polyester (PET) and the outer layer is made from polyethylene (PE). The filament is then used in the production to manufacturer the spunbond nonwoven fabric.

The benefit from combining these two materials PET and PE is such that each would give separate properties to the non-woven fabric. The polyester would give the spunbond non-woven fabric the strength while the polyethylene which has a lower melting point would provide the material the ability to heat seal.

For example if you want to make moisture absorbing products like silica gel packs, zeolite or calcium oxide packs, you could use the bicomponent spunbond non-woven fabric product for heat sealing and yet retain the strength of polyester for the moisture absorbing bag while at the same time provide the breathability for the moisture to pass through the nonwoven fabric material.

The polyethylene being able to melt at lower temperature could be used to laminate easily with materials such as polyethylene films, porous films, paper and felt.

Two types of bicomponent spunbond is available, the soft type and hard type. The soft type is soft to the touch and is rather flexible, while the stiffer hard type is a little bit more like paper to provide some form and stability to the end product. Choice of choosing either type will depends on the requirement of the end product.

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