GB2258660B - Luminescent materials and their preparation - Google Patents
Luminescent materials and their preparationInfo
- Publication number
- GB2258660B GB2258660B GB9117543A GB9117543A GB2258660B GB 2258660 B GB2258660 B GB 2258660B GB 9117543 A GB9117543 A GB 9117543A GB 9117543 A GB9117543 A GB 9117543A GB 2258660 B GB2258660 B GB 2258660B
- Authority
- GB
- United Kingdom
- Prior art keywords
- preparation
- luminescent materials
- luminescent
- materials
- 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.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/50—Sympathetic, colour changing or similar inks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—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
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/378—Special inks
- B42D25/382—Special inks absorbing or reflecting infrared light
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7767—Chalcogenides
- C09K11/7769—Oxides
- C09K11/7771—Oxysulfides
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
- G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
- G06K19/14—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by radiation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Luminescent Compositions (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9117543A GB2258660B (en) | 1991-08-14 | 1991-08-14 | Luminescent materials and their preparation |
HK79396A HK79396A (en) | 1991-08-14 | 1996-05-09 | Luminescent materials and their preparation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9117543A GB2258660B (en) | 1991-08-14 | 1991-08-14 | Luminescent materials and their preparation |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9117543D0 GB9117543D0 (en) | 1991-10-02 |
GB2258660A GB2258660A (en) | 1993-02-17 |
GB2258660B true GB2258660B (en) | 1995-06-07 |
Family
ID=10699974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9117543A Expired - Fee Related GB2258660B (en) | 1991-08-14 | 1991-08-14 | Luminescent materials and their preparation |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB2258660B (en) |
HK (1) | HK79396A (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6802992B1 (en) | 1997-03-05 | 2004-10-12 | Wieczoreck Juergen | Non-green anti-stokes luminescent substance |
DE19804012A1 (en) * | 1998-02-02 | 1999-08-05 | Giesecke & Devrient Gmbh | Value document |
DE19804024A1 (en) * | 1998-02-02 | 1999-08-05 | Giesecke & Devrient Gmbh | Value document |
US6731785B1 (en) | 1999-07-26 | 2004-05-04 | Cummins-Allison Corp. | Currency handling system employing an infrared authenticating system |
EP1117060A1 (en) * | 2000-01-10 | 2001-07-18 | Sicpa Holding S.A. | Authentication of a security article |
EP1116755A1 (en) | 2000-01-10 | 2001-07-18 | Sicpa Holding S.A. | Coating composition, preferably printing ink for security applications, method for producing a coating composition and use of glass ceramics |
DE10113267B4 (en) | 2001-03-16 | 2019-05-09 | Bundesdruckerei Gmbh | Use of an anti-Stokes phosphor in security documents |
DE10208397A1 (en) * | 2002-02-27 | 2003-09-11 | Honeywell Specialty Chemicals | Anti-Stokes phosphor composition |
US20060154180A1 (en) | 2005-01-07 | 2006-07-13 | Kannurpatti Anandkumar R | Imaging element for use as a recording element and process of using the imaging element |
DE102005032831A1 (en) * | 2005-06-30 | 2007-01-04 | Bundesdruckerei Gmbh | Holmium-doped anti-Stokes phosphors and security features with these phosphors |
DE102006047851A1 (en) | 2006-10-10 | 2008-04-17 | Giesecke & Devrient Gmbh | Authenticity feature in the form of luminescent substances |
AT505007B1 (en) * | 2007-04-30 | 2008-10-15 | Oesterreichische Staatsdrucker | USE OF A FLUORATE AS A SAFETY FEATURE, SAFETY PRINTING INK, METHOD AND DEVICE FOR CHECKING A DOCUMENT AND DOCUMENT AND SAFETY FEATURES |
US8328102B2 (en) | 2009-12-21 | 2012-12-11 | Honeywell International Inc. | Method and authentication apparatus for authenticating value documents |
EP2570468B1 (en) | 2011-09-13 | 2013-11-27 | Bundesdruckerei GmbH | Anti-stokes luminescent substances and use thereof in security documents |
DE102013020391A1 (en) * | 2013-12-10 | 2015-06-11 | Polysecure Gmbh | Marked layer structure, process for its preparation and use thereof |
DE102016120979A1 (en) | 2016-11-03 | 2018-05-03 | Bundesdruckerei Gmbh | Method for checking the authenticity of a security feature and arrangement for checking the authenticity of a security document with a security feature |
DE102019122010A1 (en) * | 2019-08-15 | 2021-02-18 | Polysecure Gmbh | Article comprising fluorescent marker particles and methods of identifying the same |
CN111815334A (en) * | 2020-06-22 | 2020-10-23 | 深圳市丰腾防伪技术有限公司 | Anti-counterfeiting tracing method based on cipher |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB650459A (en) * | 1946-05-03 | 1951-02-28 | Franz Urbach | Improvements in photographic recording and luminescent materials therefor |
EP0092240A1 (en) * | 1982-04-20 | 1983-10-26 | Fuji Photo Film Co., Ltd. | Radiation image storage panel |
US4586811A (en) * | 1982-04-23 | 1986-05-06 | Ricoh Company, Ltd. | Confidential document reproduction prevention method |
-
1991
- 1991-08-14 GB GB9117543A patent/GB2258660B/en not_active Expired - Fee Related
-
1996
- 1996-05-09 HK HK79396A patent/HK79396A/en not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB650459A (en) * | 1946-05-03 | 1951-02-28 | Franz Urbach | Improvements in photographic recording and luminescent materials therefor |
EP0092240A1 (en) * | 1982-04-20 | 1983-10-26 | Fuji Photo Film Co., Ltd. | Radiation image storage panel |
US4586811A (en) * | 1982-04-23 | 1986-05-06 | Ricoh Company, Ltd. | Confidential document reproduction prevention method |
Also Published As
Publication number | Publication date |
---|---|
GB2258660A (en) | 1993-02-17 |
GB9117543D0 (en) | 1991-10-02 |
HK79396A (en) | 1996-05-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20050814 |