Flame lamination

Sandwiches containing a layer of polyurethane (PUR) foam are produced almost exclusively by a technology of flame lamination, without using any glue, on a special line. PUR foam is melted from one or both sides by flame burners and into this thin layer of melt the laminated materials are pressed and fixed – from face side mostly fabrics or PVC leathrettes, from back side knitted or non-woven fabrics. The thickness of polyurethane foam can be up to 15 mm, working width of the line is 2000 mm. The finished sandwich is wound into rolls.