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Colored retroreflective sheeting and method of making same

  • US 5,229,882 A
  • Filed: 05/16/1990
  • Issued: 07/20/1993
  • Est. Priority Date: 05/16/1990
  • Status: Expired due to Term
First Claim
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1. In a retroreflective material, the combination comprising:

  • (a) a body member of transparent synthetic resin having a first planar face and a second face with closely spaced microprisms thereover;

    (b) means providing a reflective interface for said microprisms in a pattern over the expanse of said second face;

    (c) a colored non-reflective coating on the surfaces of said microprisms between those in said pattern, said microprisms with said reflective interface comprising 40-85 percent of the total surface area of said second face, whereby light rays impinging on said first planar face and thereafter impinging upon said reflective interfaces of said microprisms are retroreflected thereby in the direction from which they came and those impinging upon said coated microprisms are refracted therefrom with the coloration thereof in daylight and in diffuse light.

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