Method and apparatus for manufacturing sheet flooring by simultaneous multi-layer die coating

Abstract From the Canadian patent

Surface coverings and surface covering components and methods for forming them using slot die coating are disclosed. The methods involve applying a plurality of wet layers, to a substrate simultaneously or in sequence using a slot die coater wherein , a plurality of wet, layers can be applied before any of the individual layers are dried gelled, cured and/or fused. The layers remain separate and distinct before and after drying gelling, curing and/or fusing, and can be dried gelled, cured and/or fused together or separately after wet on wet, application to the substrate. The surface coverings may be decorative surface covering, including floor coverings.