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The lamination process using dual PTFE-coated fabrics thermally bonds two or more material layers. Before heat processing, the adhesive is applied as a powder to the surface of one fabric. A second layer is then introduced, sandwiching the adhesive powder between the fabric layers.
Textiles used for clothing and garments can be bonded with thermally activated adhesives. Similar systems are used in other industries, such as aerospace, due to the high pressures and heat achievable with PTFE-coated belts. The automotive industry also laminates headliner covers, carpet compounds, and car seat coverings, benefiting from the non-stick properties of PTFE in their production.
For more industrial applications, such as boat building and acoustic systems for buildings, a heavier-duty laminating machine is required. Wider and more robust PTFE-coated fabric belts provide the necessary stability.
Woven cottons for shirts and other garments are woven and dyed to specification. After this process, they are dried through a hot air distribution system known as textile dryers. In the textile drying industry, three-tier belt systems are commonly used to allow sufficient time for drying, reducing the oven’s length to save space.
These dryers typically use PTFE-coated fabric mesh belts with a 0.16-inch square opening for optimal airflow. The PTFE-coated belt resists heat up to 500°F and provides essential non-stick properties.
Non-wovens, such as polyesters, are laminated using heat and pressure between two opposing PTFE-coated mesh fabric belts. These materials are used to manufacture pillow and duvet inners, varying in thickness and density according to end-user requirements. Adjusting the distance between the PTFE fabric conveyor belts achieves different thicknesses.
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