Printed magnetic ink overt security image
First Claim
Patent Images
1. A security device comprising:
- a) a substrate supporting having an image thereon;
b) a coating of flakes supported by the substrate and in a carrier, covering the image thereby forming a latent image,;
wherein a first group of said flakes are aligned in a substantially same orientation at a first partially upstanding flake angle relative to said image, and wherein a second group of said flakes are aligned in a substantially same orientation at a second partially upstanding flake angle relative to said image;
wherein said flakes are aligned in such a manner as to obscure the image forming awherein the concentration of flakes within the carrier is dilute enough and said first partially upstanding flake angle and said second partially upstanding flake angle are oriented such that said latent image is obscured when viewing the security devicesaid security device is viewed from a first viewing angle, and to reveal the image when viewing thesaid latent image is revealed when said security device is viewed from a second viewing angle, different from the first viewing angle, wherein the coating of flakes includes a carrier supporting the flakes and wherein the concentration of flakes within the carrier is dilute enough so as to allow the latent image to be seen or to be obscured as the substrate is tilted from one direction to another, wherein a first group of the flakes are aligned in a substantially same orientation and wherein a second group of the flakes are oriented in a substantially same orientation that differs from the orientation of the first group of flakes.
4 Assignments
0 Petitions
Accused Products
Abstract
A security image and method of forming said image is disclosed wherein a substrate having an image or indicia thereon is coated with a dilute solution of pigment flakes in an ink or paint. The flakes are subsequently aligned in a magnetic field and are fixed after the field is applied. Most or all of the flakes in a region are aligned so as to be partially upstanding wherein their faces are essentially parallel. Coating the image with flakes yields a latent image which can be clearly seen at a small range of predetermined angles.
176 Citations
23 Claims
-
1. A security device comprising:
-
a) a substrate supporting having an image thereon; b) a coating of flakes supported by the substrate and in a carrier, covering the image thereby forming a latent image,; wherein a first group of said flakes are aligned in a substantially same orientation at a first partially upstanding flake angle relative to said image, and wherein a second group of said flakes are aligned in a substantially same orientation at a second partially upstanding flake angle relative to said image; wherein said flakes are aligned in such a manner as to obscure the image forming awherein the concentration of flakes within the carrier is dilute enough and said first partially upstanding flake angle and said second partially upstanding flake angle are oriented such that said latent image is obscured when viewing the security devicesaid security device is viewed from a first viewing angle, and to reveal the image when viewing thesaid latent image is revealed when said security device is viewed from a second viewing angle, different from the first viewing angle, wherein the coating of flakes includes a carrier supporting the flakes and wherein the concentration of flakes within the carrier is dilute enough so as to allow the latent image to be seen or to be obscured as the substrate is tilted from one direction to another, wherein a first group of the flakes are aligned in a substantially same orientation and wherein a second group of the flakes are oriented in a substantially same orientation that differs from the orientation of the first group of flakes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23)
-
-
22. A security device comprising:
- a substrate;
a coating covering an image located on said substrate, said coating comprising a carrier carrying a plurality of magnetically aligned flakes; wherein said magnetically aligned flakes are aligned in a substantially same orientation and are tilted, relative to said image, at a partially upstanding angle; and wherein said magnetically aligned flakes cover said latent image in a dilute enough concentration, and are so aligned at said partially upstanding angle, such that said latent image is obscured when said security device is viewed from a first angle, and said latent image is revealed when said security device is viewed from a second, different angle.
- a substrate;
Specification