Flame Lamination – Flame lamination is often used to bond film and/or fabric to soft polyurethane foams. The process, shown below, involves the passing of the soft foam over an open flame, which creates a thin layer of molten polymer. The film and/or fabric are quickly pressed against the foam while it is still in the molten state. The strength of the bond depends upon the film, fabric and foam selected and the processing conditions (i.e., gas type, flame height and spread, foam burn-off and nip pressure).
Flame lamination is a continuous process that, depending on the equipment, adheres fabric or film to one or both sides of the foam in a single pass. (source:http://www.dow.com/)
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