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US 4,685,997 AGranted
Production of demetallized packaging material
OwnerDonald E. Beckettinventor
Life of this patent
Estimating the term…
Abstract
Patterned laminates are formed by printing an image of an etchant on one web and laminating the printed web so that the image is sandwiched between the webs in contact with a metallized film. The etchant then dissolves the metallized surface in the printed areas to provide the desired pattern. The resulting laminate may be used as packaging material.
Claims10
A method of forming a patterned packaging material, which comprises:
- providing a first web of metallized material,
- providing a second web of material which is laminatable to the first web,
- printing a pattern of etchant material on one of the webs, and
- laminating the first web to the second web with said pattern of etchant material sandwiched between the metallized surface of the first web and the abutting face of the second web.
1 more element
A continuous method of forming a patterned packaging material, which comprises:
- providing a first continuous web of polymeric material which is metallized on one surface thereof,
- providing a second continuous web of polymeric material,
- printing a pattern of etchant material on one surface of said second continuous web,
- bringing said one metallized surface of said first continuous web into face-abutting relationship with the one surface of said second continuous web, and
- laminating said face-abutted webs together so as to sandwich said pattern of etchant material in engagement with said metallized surface and form an etched pattern in said metallized surface.
2 more elements
Dependencies are inferred from the claim text.