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Method of selectively forming an aluminum evaporation face

  • US 4,810,320 A
  • Filed: 01/07/1988
  • Issued: 03/07/1989
  • Est. Priority Date: 03/18/1986
  • Status: Expired due to Term
First Claim
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1. Method of shifting an aluminum face area in a selective pattern from an aluminum evaporation face contained on one side of a first sheet to a second sheet containing a curable or hardenable bonding agent in a corresponding such selective pattern on a corresponding side of the second sheet, for forming an aluminum evaporation film in said pattern on the second sheet, comprising the steps ofproviding one side of such a first sheet with a continuous coating aluminum evaporation face contained thereon,printing one side of such a second sheet with an ink to form a printed ink face in a discrete pattern,applying a curable or hardenable bonding agent onto the printed ink face in matching registry with the printed face discrete pattern,joining the first and second sheets under mechanical pressure to form a sheet composite in which the aluminum evaporation face of the first sheet is in contact with the adjacent bonding agent in such pattern on the second sheet,allowing the bonding agent to cure or harden in the formed sheet composite in discrete areas of curing and hardening, andafter the bonding agent has cured or hardened, then transfer the aluminum evaporation face to shift the area of the aluminum evaporation face in contact with the so cured or hardened bonding agent onto the bonding agent, and separating the first and second sheets of the sheet composite from each other, whereby to form simultaneously a corresponding aluminum evaporation film in the selective discrete pattern on the separated second sheet and a reverse image selective discrete pattern area defined by a portion of the aluminum evaporation face which remains on the separated first sheet.

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