Patent ID: 7578236

Claim:
A system of at least partially demetallizing a metallized film, wherein the film has a metallized side and an opposite support side, comprising: a moving surface; a heat source to maintain the moving surface at substantially a first temperature, wherein the film is positioned on a portion of the moving surface with the support side of the film in contact with said portion so that heat may be transferred from the moving surface to the film to heat the film substantially to the first temperature; a supply of etchant solution at a second temperature that is less than the first temperature; and a pattern transfer roller having an exterior surface, the exterior surface of the pattern transfer roller being in fluid communication with the supply of etchant solution so that at least a portion of the exterior surface of the pattern transfer roller carries etchant solution in a predetermined pattern, the pattern transfer roller being engaged with the metallized side of the film, wherein etchant solution is printed in the pattern on the metallized side of the film when the film passes between and in contact with a portion of the moving surface and a portion of the pattern transfer roller.