FR2679934B1 - REVERSIBLE AUTHENTICABLE SECURITY PAPER. - Google Patents
REVERSIBLE AUTHENTICABLE SECURITY PAPER.Info
- Publication number
- FR2679934B1 FR2679934B1 FR9109549A FR9109549A FR2679934B1 FR 2679934 B1 FR2679934 B1 FR 2679934B1 FR 9109549 A FR9109549 A FR 9109549A FR 9109549 A FR9109549 A FR 9109549A FR 2679934 B1 FR2679934 B1 FR 2679934B1
- Authority
- FR
- France
- Prior art keywords
- security paper
- composition
- paper
- reversible
- reactant
- 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
-
- 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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Credit Cards Or The Like (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Paper (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Abstract
The invention relates to a system for authenticating a security paper. It comprises, in combination: - a security paper comprising a first chemical reactant (1) which does not significantly impair the colour of the paper, - an authenticating composition comprising a second chemical reactant (2) forming a coloured product with (1), - a composition for deleting the coloured product. It preferably comprises: - a security paper comprising a complexant for transition metal ions as reactant (1), - an authenticating composition comprising transition metal ions forming a coloured complex with (1), as reactant (2), - a composition for deleting the coloured complex. Application as paper for banknotes.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9109549A FR2679934B1 (en) | 1991-07-29 | 1991-07-29 | REVERSIBLE AUTHENTICABLE SECURITY PAPER. |
AT92401979T ATE128201T1 (en) | 1991-07-29 | 1992-07-09 | SYSTEM FOR REVERSIBLE CHECKING A SECURITY PAPER FOR AUTHENTICITY. |
ES92401979T ES2080465T3 (en) | 1991-07-29 | 1992-07-09 | REVERSIBLE AUTHENTICATION SYSTEM OF A SECURITY PAPER. |
EP92401979A EP0530059B1 (en) | 1991-07-29 | 1992-07-09 | System for the reversibel authentification of a security paper |
DE69204946T DE69204946T2 (en) | 1991-07-29 | 1992-07-09 | System for the reversible checking of security paper for authenticity. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9109549A FR2679934B1 (en) | 1991-07-29 | 1991-07-29 | REVERSIBLE AUTHENTICABLE SECURITY PAPER. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2679934A1 FR2679934A1 (en) | 1993-02-05 |
FR2679934B1 true FR2679934B1 (en) | 1993-11-12 |
Family
ID=9415624
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9109549A Expired - Fee Related FR2679934B1 (en) | 1991-07-29 | 1991-07-29 | REVERSIBLE AUTHENTICABLE SECURITY PAPER. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0530059B1 (en) |
AT (1) | ATE128201T1 (en) |
DE (1) | DE69204946T2 (en) |
ES (1) | ES2080465T3 (en) |
FR (1) | FR2679934B1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10020873A1 (en) * | 2000-04-28 | 2001-11-08 | Mitsubishi Hitec Paper Flensbu | Temporary authentification mark for security documents uses a substituted phthalide reacting on contact with an alkaline solution, together with a volatile solvent |
WO2004087430A1 (en) * | 2003-04-02 | 2004-10-14 | Ucb, S.A. | Authentication means |
US7163909B2 (en) | 2004-04-23 | 2007-01-16 | Appleton Papers Inc. | Authenticity indicator |
FR2907136B1 (en) * | 2006-10-12 | 2010-01-15 | Arjowiggins | SECURITY TAPE, SHEET AND SECURITY DOCUMENT COMPRISING IT AND METHOD OF INCORPORATING IT |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE397363C (en) * | 1923-03-30 | 1924-06-20 | Hugo Graefe | Process for the production of forgery-proof security paper |
US4618402A (en) * | 1984-08-10 | 1986-10-21 | Arjomari-Prioux | Safety means, paper and document against falsification by chemical agent |
-
1991
- 1991-07-29 FR FR9109549A patent/FR2679934B1/en not_active Expired - Fee Related
-
1992
- 1992-07-09 AT AT92401979T patent/ATE128201T1/en not_active IP Right Cessation
- 1992-07-09 ES ES92401979T patent/ES2080465T3/en not_active Expired - Lifetime
- 1992-07-09 DE DE69204946T patent/DE69204946T2/en not_active Expired - Fee Related
- 1992-07-09 EP EP92401979A patent/EP0530059B1/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE128201T1 (en) | 1995-10-15 |
FR2679934A1 (en) | 1993-02-05 |
ES2080465T3 (en) | 1996-02-01 |
DE69204946T2 (en) | 1996-03-21 |
EP0530059A1 (en) | 1993-03-03 |
EP0530059B1 (en) | 1995-09-20 |
DE69204946D1 (en) | 1995-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |