Postage stamps
AssigneesSprintpak Pty Ltd, Printset Cambec Pty Ltd.
InventorsRobert Gray, John Caspers, Ross McDougall
Life of this patent
Estimating the term…
Abstract
A stamp (1) is disclosed which has a luminescent coating (9, 11) which over the area of the coating is such that there are a plurality of coated spaced regions interspersed with non-coated regions. The coating may be applied as a grid or cross hatching or other suitable arrangement. The coating is applied over an area which is of sufficient size relative to the thickness and density of the coating to permit the coating to be detected by a postage stamp luminescence detection device. The non-coated regions over which the coating extends being of sufficient area to permit penetration and drying of a stamp cancelling ink. A method of producing such stamp is also disclosed.
Claims19
A postage stamp comprising a stamp substrate which is finish coated on a front face and having a stamp image on said front face applied over the finish coating, an adhesive on a rear face, there being a luminescent coating printed over the front face of the stamp over the finish coating over one or more areas which may include and be on said stamp image, said luminescent coating comprising a plurality of coated spaced regions interspersed with non-coated regions, the luminescent coating being of sufficient collective area relative to its thickness and density to permit it to be detected by a postage stamp luminescence detection device and the non-coated regions being of sufficient area and distribution relative to the coated regions to permit penetration and drying of a stamp cancelling ink of a cancelling stamp and subsequent recognition of the cancelling stamp image as a substantial whole if applied over said one or more areas.
A method or producing a postage stamp to permit detection by a postage stamp luminescence detection device and to permit penetration and drying of stamp cancelling ink comprising:
- (a) providing a stamp substrate which is finish coated on a front face;
- (b) providing a stamp image to said front face over the finish coating;
- (c) providing an adhesive on the rear face;
- (d) applying to the front face of the stamp, after the stamp image is applied thereto, a luminescent coating over one or more areas which may include and be on said stamp image so there are a plurality of coated spaced regions interspersed with non-coated regions, the luminescent coating being of sufficient collective area relative to its thickness and density to permit it to be detected by a postage stamp luminescence detection device, and the non-coated regions being of sufficient area and distribution to permit penetration and drying of stamp cancelling ink of a cancelling stamp and subsequent recognition of substantially the whole of the cancelling stamp image if applied over said one or more areas.
Dependencies are inferred from the claim text.