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The company has obtained a utility patent for a calendering device used to finish composite filament filter fabrics.
2025-03-18
On March 18, 2025, the company obtained a utility patent for a calendering device designed specifically for multi-filament filter fabrics. This equipment upgrade represents three major technological breakthroughs: First, an adaptive pressure roller system driven by springs effectively addresses the issue of fabric wrinkling caused by uneven pressure in conventional calendering processes, reducing the flatness error of the fabric surface to within ±0.02 mm; second, an innovative modular temperature-control system integrating a pre-heating unit with a two-zone cooling chamber boosts calendering efficiency by more than 40%; and third, a pioneering adjustable tension mechanism—featuring a dynamic adjustment system based on slide rails and sliders—enables rapid switching between different filter fabric specifications, increasing the equipment’s versatility by 300%.
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