What Is Long Fiber Bicomponent Nonwoven Fabrics？

With the promotion and popularization of long fiber bicomponent nonwoven fabrics, especially the properties such as high strength, high temperature resistance, aging resistance, UV resistance, corrosion resistance, sound insulation, and moth-proofing have a huge market in industry. It has developed in composite support materials, packaging materials, geotechnical construction materials, filter materials and other markets. In particular, with the increasing social awareness of environmental protection, the demand for filter materials has and will continue to increase significantly. Yuzhimu spunbond filament nonwovens previously developed for the filtration market have been used. However, the market demands products with greater air permeability, and coarse-denier spunbond non-woven fabrics of polyester or other materials with hot-rolled points can no longer meet the market demand. The market demands filament non-woven products with filament, no nip points, and high air permeability.

The technical solution adopted for high-performance non-woven fabrics is a Long fiber bicomponent nonwoven fabric. The fibers of the non-woven fabric are skin core composite fibers, which are composed of skin material and core material. The skin material is selected from PA6 (nylon material), and the core material is selected from PET. When selecting the skin material and core material, the melting point of the skin material should be lower than that of the core material, in order to achieve strong adhesion in the non-woven fabric product.

Compared with hot-rolled non-woven fabrics of the same square gram weight, they are more fluffy, the thickness of the cloth is increased, and the air permeability is greatly improved, which is much higher than conventional spunbond products. It is specially suitable for use as filter materials. It not only makes up for the shortcomings of existing filament non-woven fabrics, but also maintains the original characteristics of various filaments such as high strength, high temperature resistance, aging resistance, UV resistance, corrosion resistance, sound insulation, and moth-proofing.