Back to results
US 7,029,757 B1Granted
Method for producing security marks and security marks
AssigneeGAJ Developpement SAS
InventorMichel Levy
Life of this patent
Estimating the term…
Abstract
The invention concerns a method for producing security marks on a support having a first face and a second face opposite said first face which consists in the following steps: high resolution printing with a varnish on the support first face; treating the support by electrolysis; washing and drying the support.
Claims19
Security mark comprising the following layers:
- a medium made of a material which is transparent in visible light;
- a coating applied to one surface of the medium, said coating forming a coated area;
- and
- a varnish covering at least part of the coated area of the medium where the varnish is arranged on the medium in a pattern which is invisible to the naked eye;
- wherein the varnish is a charged varnish;
- wherein the varnish is a varnish charged with a marker;
- wherein the marker is a marker in the form of micro-globules.
4 more elements
A security mark comprising the following layers:
- a medium made of a material which is transparent in visible light;
- a coating applied to one surface of the medium, said coating forming a coated area;
- and
- a varnish covering at least part of the coated area of the medium where the varnish is arranged on the medium in a motif which is invisible to the naked eye;
- wherein the varnish is a charged varnish;
- wherein the varnish is a varnish charged with a marker;
- wherein the marker is a marker in the form of micro-globules.
4 more elements
Security mark comprising the following layers:
- a medium made of a material which is transparent in visible light;
- a coating applied to one surface of the medium, said coating forming a coated area;
- and
- a varnish covering at least part of the coated area of the medium where the varnish is arranged on the medium in a pattern which is invisible to the naked eye;
- wherein the coating comprises one or more oxides.
2 more elements
Security mark comprising the following layers:
- a medium made of a material which is transparent in visible light;
- a coating applied to one surface of the medium, said coating forming a coated area;
- and
- a varnish covering at least part of the coated area of the medium where the varnish is arranged on the medium in a pattern which is invisible to the naked eye;
- wherein the coating comprises one or more metallic salts.
2 more elements
Security mark comprising the following layers:
- a medium made of a material which is transparent in visible light;
- a coating applied to one surface of the medium, said coating forming a coated area;
- and
- a varnish covering at least part of the coated area of the medium where the varnish is arranged on the medium in a pattern which is invisible to the naked eye;
- wherein the coating comprises one or more metalloids.
2 more elements
Dependencies are inferred from the claim text.