Identification card with hallmarks adapted to be inspected by transmitted and incident light and a process for the production thereof
First Claim
1. An identification card adapted to be authenticated by transmitted and reflected light comprising a sheet-like substrate of substantially homogeneous color having applied thereto a hallmark comprising partially overlapping layers of colors whereby the quantity of light transmitted through the overlapping areas of the color layers is less than the quantity of light transmitted through the nonoverlapping areas so that the overlapping areas appear darker to the eye than the nonoverlapping areas when light is transmitted therethrough, and whereby light reflected from the overlapping areas visually possesses greater color intensity than the surrounding.
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Accused Products
Abstract
A hallmark for example for a solid plastic identification card consisting of a plurality of layers is described. The hallmark is formed by means of only partially overlapping color coatings on a monochromatic or monochromatically printed substrate foil. More plastic foils are laminated onto the substrate foil, if desired. Single-layer printed portions of the surface appear bright in transmitted light and dark in incident light; multi-layer printed portions of the surface appear dark in transmitted light and bright in incident light, thus producing a watermark-like effect.
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Citations
18 Claims
- 1. An identification card adapted to be authenticated by transmitted and reflected light comprising a sheet-like substrate of substantially homogeneous color having applied thereto a hallmark comprising partially overlapping layers of colors whereby the quantity of light transmitted through the overlapping areas of the color layers is less than the quantity of light transmitted through the nonoverlapping areas so that the overlapping areas appear darker to the eye than the nonoverlapping areas when light is transmitted therethrough, and whereby light reflected from the overlapping areas visually possesses greater color intensity than the surrounding.
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2. An identification card adapted to be authenticated by transmitted and reflected light comprising a sheet-like substrate having applied thereto partially overlapping layers of colors;
- said substrate and the color layers being light-pervious;
said substrate also being of substantially uniform color throughout;
the overlapping areas of said color layers comprising a hallmark whereby the quantity of light transmitted through the overlapping areas of said color layers is less than the quantity of light transmitted through the nonoverlapping areas so that the overlapping areas appear darker to the eye than the nonoverlapping areas when light is transmitted therethrough, and whereby light reflected from the overlapping areas of said color layers visually imparts greater color intensity than the surrounding.
- said substrate and the color layers being light-pervious;
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3. A plastic card adapted to be authenticated by hallmarks;
- said hallmarks being adapted to have light transmitted therethrough and light reflected therefrom;
said card comprising a plastic sheet-like substrate;
a first color layer printed on at least a portion of said substrate;
a second color layer printed in partially overlapping relation with said first layer, said substrate and the overlapping areas of said color layers being pervious to light;
the overlapping areas comprising a hallmark whereby said overlapping areas appear darker than the nonoverlapping areas when a quantity of light is transmitted through said overlapping and nonoverlapping areas;
said colored layers having greater color intensity in the overlapping areas than the surrounding when viewed in reflected light.
- said hallmarks being adapted to have light transmitted therethrough and light reflected therefrom;
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5. A card adapted to be authenticated by hallmarks therein, comprising a light-transmitting, substantially-planar substrate;
- a first layer of substantially uniform color disposed on a portion of one planar surface of said substrate;
a hallmark comprising a discontinuity in said first color layer and outlined by said first color layer;
a second color layer defining said hallmark of said first layer in partially overlapping relation with said first layer and in partial overlapping relation with the hallmark discontinuity therein;
said color layers appearing darker in the overlapping areas than the nonoverlapping areas when a quantity of light is transmitted through said overlapping and nonoverlapping areas;
said colored layers having greater color intensity in the overlapping areas than the surrounding when viewed in reflected light.
- a first layer of substantially uniform color disposed on a portion of one planar surface of said substrate;
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6. A process for producing an identification card comprising coating a light permeable substrate sheet with a light permeable color layer, said layer having an opening therein comprising a hallmark;
- coating said substrate with a second light permeable color layer defining substantially said hallmark and arranged in partially overlapping relationship with the opening of said first coating.
- View Dependent Claims (7, 8)
Specification