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Process for the manufacture of colored intagliated articles

  • US 4,661,367 A
  • Filed: 09/27/1985
  • Issued: 04/28/1987
  • Est. Priority Date: 06/10/1982
  • Status: Expired due to Term
First Claim
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1. A process for the manufacture of colored solid articles bearing at least one highlighted intagliation, which comprises coating colored intagliated articles by applying a suspension comprising at least one optically anisotropic substance, having a minimum refractive index not greater than 2.00 but free from a film coating agent, in a suitable liquid in which the optically anisotropic substance is insoluble or of relatively poor solubility, which process is carried out in a conventional film coating apparatus in such a way that a rubbing action takes place between the articles being coated and the color or the non intagliated surface of said article being essentially unchanged by said coating while the color of the intagliation is highlighted against the rest of the surface by said layer.

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