The Thermal Bonded Hard Wadding Production Line has established itself as a cornerstone in the industrial nonwoven sector, offering high-standard output for global manufacturers. This production line integrates advanced through-air bonding technology to convert recycled, synthetic, and natural fibers into high-density "hard wadding" materials. With a customizable surface density range of 400 to 3000 gsm, the system provides a sustainable, chemical-free bonding solution for the mattress, filtration, and acoustic insulation industries.
Thermal bonding machine technology serves as the critical functional unit within this production line. The process specifically targets ES fibers (Ethylene-Propylene or Ethylene-Polyethylene) featuring a bicomponent core-sheath structure. By maintaining the oven temperature near the sheath's melting point (125°C–135°C), the machine creates point-like welds between fibers. This ensures the core remains physically stable, resulting in a finished product with superior bulkiness and structural resilience.
Customizable production configurations are available to suit varied factory requirements, including double-head thermal bonded lines and dual-mixing machine setups. The equipment operates at a stable line speed of 3 to 20 meters per minute, guaranteeing consistency in both material thickness and density.
Core Technical Specifications:
Input Materials: Recycled synthetic/natural fibers, chemical fibers.
Production Capacity: 150–600 kg/h (depending on fiber type and final density).
Finished Dimensions: Thickness of 10–200 mm; maximum width of 2400 mm (customizable).
Operating Power: 380V / 50Hz (3-phase).
The thermal bonding process follows a rigorous automated sequence to ensure the hard wadding meets industrial hardness standards.
Opening and Blending: Fibers are decomposed and uniformly mixed according to preset ratios, ensuring full opening without fiber damage.
Carding and Web Forming: Using a series of rollers (main cylinder, doffer, and worker rollers), the system individualizes fibers into a thin, uniform web.
Through-Air Consolidation: The fiber web enters a flat-bed oven where heated air is sprayed directly onto the material. This heat penetrates the web, causing the low-melt fibers to adhere instantly.
Cooling and Calibration: The consolidated web passes through a calender to remove surface fuzz and then moves through cooling rollers for stabilization before the final winding.
Hard wadding production lines generate materials known for their exceptional breathability and durability. In the home furnishing sector, these products are essential components for high-quality mattresses, seat cushions, and traditional Japanese-style tatami mats.
Industrial-grade filtration and insulation represent significant growth areas for this technology. The ability of the thermal bonding machine to process coarse denier fibers facilitates the production of effective air filter media and acoustic panels. As international demand for eco-friendly manufacturing increases, this production line provides the infrastructure necessary to transform textile waste into high-value industrial goods.
The global market for hot-air through nonwovens is projected to reach US$20 billion by 2027. We remain committed to optimizing thermal bonding machine efficiency and width-control precision to assist clients in reducing operational energy costs. Moving forward, the focus will be on integrating smarter automation to meet the rigorous material standards required by the automotive interior and premium home textile sectors.
Aishan Industrial Zone, Yanghe Town, Jiaozhou,Qingdao City, Shandong Province.
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