What is the difference between extrusion coating and adhesive coating?
Extrusion coating is the coating of a molten web of synthetic resin on to a substrate material. The actual process of extrusion coating involves extruding resin from a slot die at temperatures up to 610°F/320°C directly onto the moving web which is then passed through a nip consisting of a rubber covered pressure roller and a chrome plated cooling roll. The latter cools the molten film back into the solid state and also imparts the desired finish to the plastic surface. Adhesive coating is the coating of an adhesive (a mixture in a liquid or semi-liquid state that adheres or bonds items together) to a substrate material. What is reverse printing? Reverse printing is the process of printing on the back side of a clear substrate, sometimes referred to as subsurface printing, with a reverse image. In the process of manufacturing flexible packaging the print will be buried between the outside substrate and the rest of the structure, offering scuff and chemical resistance. When the outer su
