Laser etched security features for identification documents and methods of making same

Identification documents employing laser-etched or -engraved features are detailed, together with methods for their manufacture. Tactile effects produced by the laser-processed features may be felt by touch, helping confirm the authenticity of such documents.

PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS

Printing processes to produce particular kinds of printed work, e.g. patterns -Security printing -Transitory images, i.e. images only visible from certain viewing angles

PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING, 

BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -characterised by a particular use or purpose-for multiple purposes

BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -Identification or security features, e.g. for preventing forgery-Photographs

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof 

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -Manufacture-Marking-by removal of material

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -characterised by a particular use or purpose-Passports

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -Manufacture-Associating two or more layers-using chemicals or adhesives-using adhesives

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -Manufacture-Associating two or more layers-using heat

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -characterised by a particular use or purpose-Gift cards

Printing processes to produce particular kinds of printed work, e.g. patterns -Braille printing 

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -characterised by a particular use or purpose-Securities; Bank notes

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -Identification or security features, e.g. for preventing forgery-Signatures

Duplicating or marking methods; Sheet materials for use therein -Ablative recording, e.g. by burning marks; Spark recording 

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -characterised by a particular use or purpose-Identity cards

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -Manufacture-Associating two or more layers-using pressure

Printing processes to produce particular kinds of printed work, e.g. patterns -Security printing 

Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof -Manufacture-Marking-by removal of material-using electromagnetic radiation, e.g. laser

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