Yuzhimu Nonwoven Filter Fabric: High Air Permeability and Stable Performance for Advanced Filtration

Filtration performance begins with the structure of the filter material. A well-designed nonwoven filter fabric needs to provide an appropriate combination of air permeability, structural stability, stiffness, and process consistency so that it can perform reliably within different filtration systems. Yuzhimu Nonwoven Filter Fabric is developed as a lightweight, functional nonwoven material for applications where controlled airflow and a stable fibrous structure are important. With available basis weights from 65 to 90 g/m², air permeability from 4,500 to 5,400 L/m²/s, and stiffness values from 80 to 120 mg, the ATLBACK series provides multiple material options for different filter constructions. Its fibrous web structure can be incorporated into filtration products where the material needs to maintain its form while allowing air to pass efficiently through the web.

Nonwoven Filter Fabric Built Around Airflow

Air permeability is one of the key parameters when selecting a nonwoven material for filtration. A filter structure must allow sufficient airflow while maintaining the characteristics required by the overall filtration system. The Yuzhimu ATLBACK series offers air permeability values of up to 5,400 L/m²/s, providing manufacturers with material options for designs where airflow resistance needs to be carefully controlled. The available grades include ATLBACK-65B and ATLBACK-65Y at 5,400 L/m²/s, ATLBACK-70B and ATLBACK-70BV/70BVM at 5,200 L/m²/s, ATLBACK-75B at 5,000 L/m²/s, ATLBACK-80B at 4,700 L/m²/s, and ATLBACK-90B at 4,500 L/m²/s. This range allows the filter construction to be selected according to the desired balance between material weight, airflow, and structural characteristics.

Stable Structure for Consistent Filter Construction

A filter fabric needs to maintain a stable physical structure during converting and assembly. If the substrate lacks sufficient stiffness or dimensional stability, handling, pleating, forming, lamination, or integration with other filtration layers can become more difficult. Yuzhimu Nonwoven Filter Fabric offers stiffness values ranging from 80 to 120 mg according to ASTM D6125, increasing across the standard ATLBACK grades as basis weight increases. This provides a measurable reference when evaluating how different specifications may behave during downstream processing. For filter manufacturers, such technical data can be useful when developing a material combination in which the nonwoven layer needs to maintain its shape while remaining sufficiently open for airflow.

Multiple Basis Weights for Different Filter Designs

Different filtration products require different material constructions. A lightweight filter may prioritize airflow and material efficiency, while another design may require a somewhat heavier substrate with greater structural support. Instead of limiting production to one specification, the Yuzhimu ATLBACK series covers 65, 70, 75, 80, and 90 g/m² in its standard configurations. This range gives designers greater flexibility when developing filter media and selecting the appropriate combination of basis weight, air permeability, and stiffness. The availability of several grades also makes it easier to compare material behavior during prototyping and identify a specification that fits the intended filter structure.

A Fibrous Web for Efficient Air Movement

The visual structure of nonwoven filter fabric is closely connected to its functional behavior. Unlike a conventional woven material with a regular yarn grid, a nonwoven web consists of interconnected fibers forming a three-dimensional porous structure. This type of structure can provide numerous pathways through the material and is particularly useful when air needs to move through the filter media with controlled resistance. Yuzhimu Nonwoven Filter Fabric is designed around this type of fibrous structure, providing a combination of openness and material integrity. When incorporated into a complete filter system, the fabric can work together with other functional layers to create the desired airflow and filtration characteristics.