Bonding textile material such as carpet backing and/or fabric, which comprises consolidated fibers in the form of fiber bundles and/or filaments, comprises applying molten thermoplastic hotmelt adhesive to one side of the textile material

摘要

The method for bonding textile material such as carpet backing and/or fabric, which comprises consolidated fibers in the form of fiber bundles and/or filaments, comprises applying a molten thermoplastic hotmelt adhesive to one side of the textile material. The hotmelt adhesive penetrates into the consolidated fibers or the fiber bundles by capillary action at the intended processing temperature on account of its low viscosity. Before applying the hotmelt adhesive, the product is heated and is subjected to a corona treatment and/or to a temperature treatment. The method for bonding textile material such as carpet backing and/or fabric, which comprises consolidated fibers in the form of fiber bundles and/or filaments, comprises applying a molten thermoplastic hotmelt adhesive to one side of the textile material. The hotmelt adhesive penetrates into the consolidated fibers or the fiber bundles by capillary action at the intended processing temperature on account of its low viscosity. Before applying the hotmelt adhesive, the product is heated and is subjected to a corona treatment and/or to a temperature treatment. A first layer is applied before solidifying the hotmelt adhesive. After applying the hotmelt adhesive, an additional adhesive is applied for fixing a second layer. The fiber bundles or fabric are used, with which the rising height of water in the fiber bundles and/or the fabric is 3 mm within the first minute. A mixture made of additional thermoplastic hotmelt adhesive and gas-filled microspheres expandable by thermal effect are applied on the second layer and the first layer still applied with hotmelt adhesive. The microspheres are directly foamed by a further thermal treatment and then subsequently cooled. An aggregate is admixed to the hotmelt adhesive before applying on the textile material. The processability of the hotmelt adhesive, the optical characteristics of the coating, the electrical characteristics of the coating and/or the weight per unit area of the coating are influenced by the aggregate. The aggregate has the gas-filled microspheres expandable by thermal effect. An independent claim is included for a device for bonding textile material such as carpet back and/or fabric.