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Film which can be lettered using a laser beam

  • US 6,066,437 A
  • Filed: 10/08/1997
  • Issued: 05/23/2000
  • Est. Priority Date: 10/11/1996
  • Status: Expired due to Term
First Claim
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1. A film to be lettered with a laser beam comprising:

  • at least one protective film which is transparent to said laser beam;

    at least one substantially metallic opaque layer having at least one first color and being applied onto a bottom surface of said at least one protective film, said substantially metallic opaque layer being selectively ablated by said laser beam in areas where the metallic layer is irradiated by said laser beam, said at least one protective film sealing said substantially metallic opaque layer before, during, and after ablation of said substantially metallic opaque layer;

    at least one contrast-forming layer applied to said at least one substantially metallic opaque layer, said contrast-forming layer having at least one color which is contrasting to said first color and being substantially resistant to said laser beam, andan adhesive layer applied to said at least one contrast-forming layer.

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