It is based on joining of materials using polyurethane foam, the role of which from the point of view of the end user is to give the final product (laminate) the required softness and elasticity.
From the process's point of view, polyurethane foam is at the same time a binder. In the first place, the PU foam is fed into the gap between the gas burner and the calender. Its surface is melted, creating a layer of liquid and viscous polyurethane.
Immediately thereafter, the melted layer is put in contact with the "back" side of the face material, which may be a knitted fabric, non-woven, PVC, PE film, or other materials supplied in beams. The main advantages of the process are its speed, low cost, and resistance of the resulting bond to such external factors as temperature, humidity, use of detergents or thinners.
The working width of our flame laminators is up to 2100mm.