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Printing material comprising a combustible material suitable for creating pits on irradiation with a laser beam

  • US 5,324,617 A
  • Filed: 06/25/1992
  • Issued: 06/28/1994
  • Est. Priority Date: 06/28/1991
  • Status: Expired due to Term
First Claim
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1. A printing material, comprising a shaped structure which is made of a dispersion of a self-combustible material in a combustible material, wherein the self-combustible material is in the form of microcapsules encapsulated with a resin film, said self-combustible material consisting essentially of a film-forming nitro compound.

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