Decorative article
AssigneeDe La Rue Holographics Limited
InventorsCharles E. Chatwin, Ralph Kay
Life of this patent
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AssigneeDe La Rue Holographics Limited
InventorsCharles E. Chatwin, Ralph Kay
Estimating the term…
The article includes a substrate which is composed of a single ply that contains both a structure for generating a viewable optically variable effect, such as a hologram, and carries an indicia receptive coating. The indicia receptive coating covers the single ply such that at least part of the optically variable effect is visible. The indicia receptive coating may receive printed indicia such as security indicia, alphanumeric character shapes, symbols, and bar codes. The article with the single ply that contains viewable optically variable effect and also carries the printed indicia, is more tamper resistant than previous identification documents. It is very difficult, if not impossible, to alter the printed indicia without also altering the structure that generates the viewable optically variable effect or vice versa.
An article comprising a substrate having a structure for generating a viewable optically variable effect, the substrate being partially printed with a continuous non-self-supporting, indicia-receptive coating, wherein the coating acts as a mask which overlies at least part of the structure for generating the viewable optically variable effect and includes at least one window through which the viewable optically variable effect can be observed.
A method of manufacturing security articles, the method comprising:
Dependencies are inferred from the claim text.