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Mar 07, 2025
Industrial filter cloths are widely used across various industries such as metallurgy and mineral processing, non-ferrous metals, pharmaceuticals and environmental protection, and more. Their key function lies in improving solid-liquid separation and enhancing production efficiency.
As is well known, industrial filter cloths possess many physical and mechanical properties (the relationship between stress and deformation of the fabric under external forces), including strength, elongation, elasticity, abrasion resistance, and others. Today, Bolian will provide a brief overview focused on the strength performance of industrial filter cloths.
The strength performance of filter cloth includes three key aspects: tensile strength and elongation at break, tear strength, and burst strength. Let's take a closer look:
During use, filter cloths are often subjected to significant tensile forces, which may lead to tensile breakage. The tensile force that causes the fabric to break is referred to as breaking strength. The percentage of deformation relative to the original length at the point of rupture is known as elongation at break.
The tensile performance of a fabric depends on the fiber properties, yarn structure, fabric weave, and post-processing.
During operation, yarns in the fabric may be caught and broken by foreign objects, or the fabric may be locally clamped and torn apart. This type of damage is referred to as tearing.
While the factors affecting tear strength are similar to those influencing tensile strength, tear strength is also impacted by the interlacing force between yarns in the fabric. Generally, plain weave fabrics have lower tear strength, square mesh fabrics have higher tear strength, and satin or twill weaves fall somewhere in between. Tear strength also reflects the flexibility or rigidity of the fabric.
Bursting refers to the localized failure of fabric under forces applied perpendicular to its surface.
Burst strength testing provides information about the fabric’s multi-directional stretch characteristics, making it especially useful for knitted fabrics, triaxial weaves, nonwoven industrial filter cloths, and parachute fabrics.
