AU5791598A - Photochromic security system for security documents - Google Patents
Photochromic security system for security documentsInfo
- Publication number
- AU5791598A AU5791598A AU57915/98A AU5791598A AU5791598A AU 5791598 A AU5791598 A AU 5791598A AU 57915/98 A AU57915/98 A AU 57915/98A AU 5791598 A AU5791598 A AU 5791598A AU 5791598 A AU5791598 A AU 5791598A
- Authority
- AU
- Australia
- Prior art keywords
- security
- photochromic
- documents
- security system
- security documents
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/28—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating
- B41M5/282—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating using thermochromic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
- B41M3/142—Security printing using chemical colour-formers or chemical reactions, e.g. leuco-dye/acid, photochromes
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/08—Photoprinting; Processes and means for preventing photoprinting
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/04—Preventing copies being made of an original
- G03G21/043—Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US78005796A | 1996-12-23 | 1996-12-23 | |
US08780057 | 1996-12-23 | ||
PCT/US1997/022048 WO1998028154A1 (en) | 1996-12-23 | 1997-12-08 | Photochromic security system for security documents |
Publications (1)
Publication Number | Publication Date |
---|---|
AU5791598A true AU5791598A (en) | 1998-07-17 |
Family
ID=25118444
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU57915/98A Abandoned AU5791598A (en) | 1996-12-23 | 1997-12-08 | Photochromic security system for security documents |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP0946371A1 (en) |
AU (1) | AU5791598A (en) |
CA (1) | CA2276043A1 (en) |
CO (1) | CO4890890A1 (en) |
ID (1) | ID19169A (en) |
WO (1) | WO1998028154A1 (en) |
ZA (1) | ZA9710835B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2942244B1 (en) | 2009-02-16 | 2011-04-15 | Arjowiggins Security | METHOD FOR CREATING VISUAL ANIMATION ON A SUPPORT |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3597082A (en) * | 1967-02-20 | 1971-08-03 | Litton Business Systems Inc | Uncopyable photochromic paper |
DE2048853C3 (en) * | 1969-10-07 | 1978-05-11 | Xerox Corp., Rochester, N.Y. (V.St.A.) | Process for the production of non-copyable documents |
IL42090A (en) * | 1973-04-22 | 1977-01-31 | Yeda Res & Dev | Photocopying prevention |
FR2618812B1 (en) * | 1987-07-30 | 1990-04-27 | Vicat Sa | ANTICOPY PRINT-WRITE MEDIUM AND ASSOCIATED METHOD |
-
1997
- 1997-12-02 ZA ZA9710835A patent/ZA9710835B/en unknown
- 1997-12-08 AU AU57915/98A patent/AU5791598A/en not_active Abandoned
- 1997-12-08 WO PCT/US1997/022048 patent/WO1998028154A1/en not_active Application Discontinuation
- 1997-12-08 CA CA002276043A patent/CA2276043A1/en not_active Abandoned
- 1997-12-08 EP EP97954036A patent/EP0946371A1/en not_active Withdrawn
- 1997-12-23 ID IDP973963A patent/ID19169A/en unknown
- 1997-12-23 CO CO97074789A patent/CO4890890A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
ZA9710835B (en) | 1998-06-12 |
WO1998028154A1 (en) | 1998-07-02 |
CO4890890A1 (en) | 2000-02-28 |
EP0946371A1 (en) | 1999-10-06 |
ID19169A (en) | 1998-06-28 |
CA2276043A1 (en) | 1998-07-02 |
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