GB1387389A - Detection of counterfeiting in security documents - Google Patents
Detection of counterfeiting in security documentsInfo
- Publication number
- GB1387389A GB1387389A GB2083573A GB2083573A GB1387389A GB 1387389 A GB1387389 A GB 1387389A GB 2083573 A GB2083573 A GB 2083573A GB 2083573 A GB2083573 A GB 2083573A GB 1387389 A GB1387389 A GB 1387389A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coating
- liquid crystal
- document
- capsules
- room temperature
- 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
Links
- 238000001514 detection method Methods 0.000 title 1
- 239000011248 coating agent Substances 0.000 abstract 4
- 238000000576 coating method Methods 0.000 abstract 4
- 239000004973 liquid crystal related substance Substances 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 3
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 abstract 2
- 239000002775 capsule Substances 0.000 abstract 2
- 239000004255 Butylated hydroxyanisole Substances 0.000 abstract 1
- 239000004322 Butylated hydroxytoluene Substances 0.000 abstract 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 abstract 1
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000003508 Dilauryl thiodipropionate Substances 0.000 abstract 1
- YDBYJHTYSHBBAU-YFKPBYRVSA-N S-methyl-L-methioninate Chemical compound C[S+](C)CC[C@H](N)C([O-])=O YDBYJHTYSHBBAU-YFKPBYRVSA-N 0.000 abstract 1
- 229930003427 Vitamin E Natural products 0.000 abstract 1
- 239000003963 antioxidant agent Substances 0.000 abstract 1
- 235000006708 antioxidants Nutrition 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 235000019282 butylated hydroxyanisole Nutrition 0.000 abstract 1
- CZBZUDVBLSSABA-UHFFFAOYSA-N butylated hydroxyanisole Chemical compound COC1=CC=C(O)C(C(C)(C)C)=C1.COC1=CC=C(O)C=C1C(C)(C)C CZBZUDVBLSSABA-UHFFFAOYSA-N 0.000 abstract 1
- 229940043253 butylated hydroxyanisole Drugs 0.000 abstract 1
- 235000010354 butylated hydroxytoluene Nutrition 0.000 abstract 1
- 229940095259 butylated hydroxytoluene Drugs 0.000 abstract 1
- 230000003098 cholesteric effect Effects 0.000 abstract 1
- 235000019304 dilauryl thiodipropionate Nutrition 0.000 abstract 1
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 abstract 1
- 238000005286 illumination Methods 0.000 abstract 1
- 239000004611 light stabiliser Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000012216 screening Methods 0.000 abstract 1
- 235000019165 vitamin E Nutrition 0.000 abstract 1
- 229940046009 vitamin E Drugs 0.000 abstract 1
- 239000011709 vitamin E Substances 0.000 abstract 1
Classifications
-
- 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
-
- 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
- B42D25/364—Liquid crystals
-
- 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
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/24—Passports
-
- 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
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
-
- B42D2033/26—
Landscapes
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Credit Cards Or The Like (AREA)
- Printing Methods (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Paints Or Removers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US25268772A | 1972-05-12 | 1972-05-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1387389A true GB1387389A (en) | 1975-03-19 |
Family
ID=22957088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2083573A Expired GB1387389A (en) | 1972-05-12 | 1973-05-02 | Detection of counterfeiting in security documents |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5716912B2 (enExample) |
| CA (1) | CA1003205A (enExample) |
| GB (1) | GB1387389A (enExample) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0086645A3 (en) * | 1982-02-12 | 1984-07-04 | Mitsui Petrochemical Industries, Ltd. | Catalyst composition and process for polymerizing olefins |
| US5213664A (en) * | 1989-11-14 | 1993-05-25 | Ab Tumba Bruk | Lottery tickets and paper |
| GB2274428A (en) * | 1993-01-20 | 1994-07-27 | Portals | Security thread including thermochromic pigment or dyestuff |
| US5629055A (en) * | 1994-02-14 | 1997-05-13 | Pulp And Paper Research Institute Of Canada | Solidified liquid crystals of cellulose with optically variable properties |
| WO2010115809A1 (de) * | 2009-04-06 | 2010-10-14 | Giesecke & Devrient Gmbh | Mikrokapsel mit flüssigkristall |
| RU2640531C2 (ru) * | 2013-06-12 | 2018-01-09 | Сикпа Холдинг Са | Термочувствительные метки для выявления фальсификации |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5521127U (enExample) * | 1978-07-26 | 1980-02-09 | ||
| JPH0372478U (enExample) * | 1989-11-17 | 1991-07-22 |
-
1973
- 1973-04-25 CA CA169,523A patent/CA1003205A/en not_active Expired
- 1973-05-02 GB GB2083573A patent/GB1387389A/en not_active Expired
- 1973-05-11 JP JP5242873A patent/JPS5716912B2/ja not_active Expired
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0086645A3 (en) * | 1982-02-12 | 1984-07-04 | Mitsui Petrochemical Industries, Ltd. | Catalyst composition and process for polymerizing olefins |
| US5213664A (en) * | 1989-11-14 | 1993-05-25 | Ab Tumba Bruk | Lottery tickets and paper |
| US5407535A (en) * | 1989-11-14 | 1995-04-18 | Abtumba Bruk | Manufacture of lottery tickets |
| GB2274428A (en) * | 1993-01-20 | 1994-07-27 | Portals | Security thread including thermochromic pigment or dyestuff |
| GB2274428B (en) * | 1993-01-20 | 1996-08-21 | Portals | Security threads |
| US5629055A (en) * | 1994-02-14 | 1997-05-13 | Pulp And Paper Research Institute Of Canada | Solidified liquid crystals of cellulose with optically variable properties |
| WO2010115809A1 (de) * | 2009-04-06 | 2010-10-14 | Giesecke & Devrient Gmbh | Mikrokapsel mit flüssigkristall |
| RU2537610C2 (ru) * | 2009-04-06 | 2015-01-10 | Гизеке Унд Девриент Гмбх | Микрокапсула с жидким кристаллом |
| RU2640531C2 (ru) * | 2013-06-12 | 2018-01-09 | Сикпа Холдинг Са | Термочувствительные метки для выявления фальсификации |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2323076B2 (de) | 1975-06-26 |
| CA1003205A (en) | 1977-01-11 |
| DE2323076A1 (de) | 1973-11-22 |
| JPS5716912B2 (enExample) | 1982-04-07 |
| JPS4950899A (enExample) | 1974-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0277982B1 (en) | Marking of articles with photochromic compounds | |
| EP1049930B1 (de) | Substrat zum verpacken von oder anbringen an verderblichen produkten und verfahren zu deren qualitätsbestimmung | |
| GB1387389A (en) | Detection of counterfeiting in security documents | |
| US3585381A (en) | Encapsulated cholesteric liquid crystal display device | |
| DE69425749T2 (de) | Photochrome substituierte naphtopyranverbindungen | |
| GB1403470A (en) | Ceramci pigments based on zirconium silicate | |
| CA1028282A (en) | Closure cap with tamper indicator | |
| CA960454A (en) | Day light fluorescent pigments and process for their preparation | |
| AU496848B2 (en) | Cap closure for bottles andthe like with childproof security | |
| GB1501370A (en) | Process for the production of camouflage colourations | |
| EP1117656B1 (en) | Grey colouring photochromic fused pyrans | |
| GB1161039A (en) | A Visual Display Device | |
| KR880010059A (ko) | 적은 착색 및 탁월한 투명도의 불포화 폴리에스테르 수지조성물 | |
| KR910008094A (ko) | 안료물질 | |
| US20110157539A1 (en) | Security element having a variable optical effect and security sheet or document or article comprising it | |
| EP1140892A1 (en) | Photochromic substiituted 2h-naphtho[1,2-b]pyrans | |
| CA982806A (en) | Daylight fluorescent pigments and process for preparing them | |
| GB1474642A (enExample) | ||
| ES460383A1 (es) | Un procedimiento para la preparacion de nuevos derivados de benzoxocina. | |
| GB1435993A (en) | Opaque regenerated cellulose for keeping | |
| ES8103688A1 (es) | Procedimiento de obtencion de una hoja termoplastica de ma- terial sintetico con coloracion gris | |
| GB1310769A (en) | Production of shaped carbon articles | |
| GB1424654A (en) | Glass-forming batches | |
| ATE71885T1 (de) | Zwei- oder mehrlagiges papiererzeugnis. | |
| US3720658A (en) | Cholesteryl p-phenylazophenyl carbonate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |