EP0378029A2 - Nichtfluoreszierendes, nichtfälschbares Sicherheitspapier und erhaltenes Dokument - Google Patents

Nichtfluoreszierendes, nichtfälschbares Sicherheitspapier und erhaltenes Dokument Download PDF

Info

Publication number
EP0378029A2
EP0378029A2 EP89420481A EP89420481A EP0378029A2 EP 0378029 A2 EP0378029 A2 EP 0378029A2 EP 89420481 A EP89420481 A EP 89420481A EP 89420481 A EP89420481 A EP 89420481A EP 0378029 A2 EP0378029 A2 EP 0378029A2
Authority
EP
European Patent Office
Prior art keywords
cobalt
paper
paper according
salt
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.)
Granted
Application number
EP89420481A
Other languages
English (en)
French (fr)
Other versions
EP0378029B1 (de
EP0378029A3 (de
Inventor
Claude Raymond Riou
André Honnorat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LANA MANUFACTURE DE PAPIER
International Paper SA
Original Assignee
Aussedat Rey SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Aussedat Rey SA filed Critical Aussedat Rey SA
Publication of EP0378029A2 publication Critical patent/EP0378029A2/de
Publication of EP0378029A3 publication Critical patent/EP0378029A3/de
Application granted granted Critical
Publication of EP0378029B1 publication Critical patent/EP0378029B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/916—Fraud or tamper detecting

Definitions

  • the present invention relates to the field of stationery and it relates to a security paper having a sensitivity to chemical agents which can be used to falsify inked prints by chemically bleaching the inks.
  • the present invention relates, more specifically, to the field of security papers which can be used for the production of handwritten payment documents and official documents which must be protected against any attempt at falsification using chemical reagent.
  • the present invention aims to provide a new security paper which meets better than hitherto the various requirements charged to a tamper-proof security paper and which can be easily manufactured using traditional methods and at an attractive cost price.
  • the object of the invention is to provide a tamper-proof security paper having no significant residual coloration or fluorescence, capable of reacting to reducing chemical agents, to the pair of oxidizing-reducing agents, as well as to erasing felts , with a sufficiently high sensitivity to meet the severe tests in this area.
  • Another object of the invention is to provide a tamper-proof security paper having, after treatment, a clear white coloration which does not undergo any appreciable modification in the usual storage time at the user.
  • Another object of the invention is to provide a tamper-proof security paper whose reaction sensitivity to the pair of oxidizing-reducing agents is improved.
  • the tamper-proof security paper according to the invention is characterized by the presence, on its surface and / or in its mass, of a soluble or partially soluble salt in the aqueous phase of cobalt II or III.
  • the soluble cobalt salt can therefore be supplied in several ways, for example: - by coating according to known methods, - by adding to the mass, - or even by impregnation.
  • cobalt salts which are particularly suitable, mention should be made of those which are preferred: - cobalt sulfate II heptahydrate, - cobalt acetate II - cobalt II nitrate, - cobalt II chloride, - cobalt III acetylacetonate.
  • the amount of cobalt salt to be provided depends essentially on the color desired in reaction. It appears that a contribution, starting from 0.2% by dry weight relative to the weight of paper, already makes it possible to produce, in the presence of a reactive chemical agent, a coloration allowing observation with the naked eye.
  • cobalt salt in order to reinforce the sensitivity to the oxidizing-reducing couple, provision is made to combine with the cobalt salt, at least partially soluble in the aqueous phase, one or more co-reactants or sensitizing agents, of reducing nature, among which those of phenolic structure are preferred.
  • the amount of co-reactant can vary from 0.5% by dry weight relative to the weight of paper, depending on the reactive coloration sought, in particular its density up to a defined maximum quantity, as is known from skilled in the art, to take into account the cost of production, while respecting, preferably, the white background color of the paper.
  • compositions for treating a paper of unfalsifiable check type with a grammage of 95 g / m2 and a basic white color containing or not the usual adjuvants and additives, in particular in the field of tamper-proof security papers.
  • the paper support is treated on the surface with a solution comprising, per liter of water: - Cobalt II sulfate heptahydrate 30g - Hydroquinone 20g - Starch 200g
  • the take of bath is approximately 40% compared to the weight of paper which is dried in a traditional way.
  • Such a paper has a reactive yellow-orange coloration after bringing into contact the oxidizing-reducing couple potassium permanganate - sodium bisulfite according to, for example, an immersion of 15 seconds in a 50 g / l solution of potassium permanganate, followed about one minute of draining, after which the paper is immersed in a solution of 10-15 g / l of sodium bisulfite before being dried in the open air.
  • a paper such as above, also exhibits an orange colored reaction in the presence of reducing agents alone, such as bisulfite in aqueous solution, neutral sulfite, in the presence of ink erasing felts, a beige greenish colored reaction in presence of sodium hypochlorite and a brown reaction in the presence of strong basic agents, such as soda or sodium carbonate.
  • reducing agents such as bisulfite in aqueous solution, neutral sulfite
  • a coating solution is deposited on the surface comprising, per liter of water: - Cobalt acetate 20g - Phloroglucinol 5 g - Starch 200g
  • the non-fluorescent white paper obtained reacts, in the presence of chemical agents described in the previous example, developing the same colors.
  • the coating solution comprising, per liter of water: - Cobalt II nitrate 15g - Resorcinol 20g - Manganese sulfate 10g - Starch 150g
  • the non-fluorescent white paper obtained reacts with the oxidizing-reducing couple, with the reducing agents, with the erasing felts, giving a yellow-orange coloration clearly visible on the paper. With sodium hypochlorite and bases, an intense brown color is formed.
  • the coating solution comprising, per liter of water: - Cobalt chloride II 25g - Hydroquinone 20g - Starch 100g
  • the whiteness and reactivity of the final product are identical to that of Example 5.
  • the invention also encompasses any colored paper and not fundamentally white and treated to contain in mass or on the surface a soluble salt of cobalt.

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Paper (AREA)
  • Luminescent Compositions (AREA)
EP89420481A 1988-12-07 1989-12-06 Nichtfluoreszierendes, nichtfälschbares Sicherheitspapier und erhaltenes Dokument Expired - Lifetime EP0378029B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8816347A FR2639970B1 (fr) 1988-12-07 1988-12-07 Papier de securite infalsifiable, non fluorescent et document obtenu
FR8816347 1988-12-07

Publications (3)

Publication Number Publication Date
EP0378029A2 true EP0378029A2 (de) 1990-07-18
EP0378029A3 EP0378029A3 (de) 1991-07-10
EP0378029B1 EP0378029B1 (de) 1993-09-15

Family

ID=9372854

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420481A Expired - Lifetime EP0378029B1 (de) 1988-12-07 1989-12-06 Nichtfluoreszierendes, nichtfälschbares Sicherheitspapier und erhaltenes Dokument

Country Status (5)

Country Link
US (1) US5156717A (de)
EP (1) EP0378029B1 (de)
DE (1) DE68909205T2 (de)
ES (1) ES2058586T3 (de)
FR (1) FR2639970B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235157B (en) * 1989-08-07 1993-08-04 Aussedat Rey Sa Forgery-proof security paper and a process for its manufacture.
EP0632162B1 (de) * 1993-06-29 1999-12-08 Arjo Wiggins S.A. Gegen Einwirkung chemischer Verbindungen fälschungssicheres Blatt und daraus hergestelltes fälschungssicheres Dokument
WO2012101334A1 (fr) 2011-01-25 2012-08-02 Honnorat Recherches & Services Papier infalsifiable aux solvants
WO2013060947A1 (fr) 2011-10-26 2013-05-02 Honnorat Recherches & Services Papier de securite infalsifiable aux agents oxydo-reducteurs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998041688A1 (en) * 1997-03-14 1998-09-24 Georgia-Pacific Corporation, Inc. Security paper
FR2943074B1 (fr) * 2009-03-13 2011-05-20 Arjowiggins Security Substrat marquable au laser et procede de fabrication associe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1804978A (en) * 1926-03-01 1931-05-12 Genoese John Safety paper
US2005105A (en) * 1930-06-23 1935-06-18 Milton C Johnson Company Safety paper
FR1509715A (fr) * 1966-02-04 1968-01-12 Inveresk Paper Company Ltd Papier de sécurité
FR2620146A1 (fr) * 1987-09-03 1989-03-10 Arjomari Prioux Moyen, papier et document de securite contre la falsification par agent chimique et la contrefacon

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US673400A (en) * 1900-05-18 1901-05-07 Ernst Kretschmann Paper for sympathetic ink.
US670511A (en) * 1900-11-10 1901-03-26 Electrical Inkless Printing Syndicate Ltd Manufacture of paper.
US2075538A (en) * 1932-08-02 1937-03-30 Milton C Johnson Company Safety paper
DE635442C (de) * 1934-03-21 1936-09-17 Papierfabrik Spechthausen Akt Verfahren zur Herstellung von Sicherheitspapier

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1804978A (en) * 1926-03-01 1931-05-12 Genoese John Safety paper
US2005105A (en) * 1930-06-23 1935-06-18 Milton C Johnson Company Safety paper
FR1509715A (fr) * 1966-02-04 1968-01-12 Inveresk Paper Company Ltd Papier de sécurité
FR2620146A1 (fr) * 1987-09-03 1989-03-10 Arjomari Prioux Moyen, papier et document de securite contre la falsification par agent chimique et la contrefacon

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2235157B (en) * 1989-08-07 1993-08-04 Aussedat Rey Sa Forgery-proof security paper and a process for its manufacture.
EP0632162B1 (de) * 1993-06-29 1999-12-08 Arjo Wiggins S.A. Gegen Einwirkung chemischer Verbindungen fälschungssicheres Blatt und daraus hergestelltes fälschungssicheres Dokument
WO2012101334A1 (fr) 2011-01-25 2012-08-02 Honnorat Recherches & Services Papier infalsifiable aux solvants
US9057159B2 (en) 2011-01-25 2015-06-16 Honnorat Recherches & Services Paper that cannot be forged using solvents
WO2013060947A1 (fr) 2011-10-26 2013-05-02 Honnorat Recherches & Services Papier de securite infalsifiable aux agents oxydo-reducteurs

Also Published As

Publication number Publication date
ES2058586T3 (es) 1994-11-01
US5156717A (en) 1992-10-20
DE68909205D1 (de) 1993-10-21
DE68909205T2 (de) 1994-04-07
EP0378029B1 (de) 1993-09-15
EP0378029A3 (de) 1991-07-10
FR2639970B1 (fr) 1991-09-20
FR2639970A1 (fr) 1990-06-08

Similar Documents

Publication Publication Date Title
EP0169750B2 (de) Verfahren zur Herstellung von aufleuchtenden Sicherheitsfasern und andere verwandten Materialien
EP0927279B1 (de) Durchgefärbtes pauspapier
EP0378029B1 (de) Nichtfluoreszierendes, nichtfälschbares Sicherheitspapier und erhaltenes Dokument
FR2650606A1 (fr) Papier de securite infalsifiable et composition aqueuse ou organique utile, notamment pour rendre un papier infalsifiable
FR2627517A1 (fr) Procede de blanchiment des matieres textiles avec destruction enzymatique de l'exces de peroxyde
EP0174885B1 (de) Sicherheitspapier und -dokument gegen die Fälschung durch eine chemische Substanz
FR2478695A1 (fr) Papier de surete a particules luminescentes, son procede de fabrication, et procede de fabrication desdites particules
FR2643379A1 (fr) Nouvelles phtalocyanines, leur preparation et leur utilisation comme colorants
FR2576332A1 (fr) Papier de securite infalsifiable, procede pour rendre infalsifiable un papier et composition aqueuse ou organique utile, notamment, pour rendre un papier infalsifiable
BE1011817A4 (fr) Support pour impression, ecriture authentifiable par la chaleur et infalsifiable par agent chimique.
EP0530059B1 (de) System zum reversiblen Überprüfen eines Sicherheitspapiers auf Echtheit
EP0494828B1 (de) Sicherheitspapier
JP2639258B2 (ja) 着色炭酸カルシウムの製造方法
FR2758574A1 (fr) Papier de securite opaque, authentifiable par dechirure, tickets de jeu a gratter realises a partir dudit papier et son procede de fabrication
FR2580303A1 (fr) Agent et papier de securite contre la falsification par agent chimique, et son procede de fabrication
US4394130A (en) Copper phthalocyanines having trimethylammoniummethyl groups as paper dyes
EP0632162B1 (de) Gegen Einwirkung chemischer Verbindungen fälschungssicheres Blatt und daraus hergestelltes fälschungssicheres Dokument
US2085163A (en) Paper
FR2568904A1 (fr) Moyen de securite contre la falsification par agent chimique, papier de securite contenant un tel moyen, et document de securite comprenant ledit papier de securite
FR2712294A1 (fr) Phtalocyanines d'aluminium cationiques, leur préparation et leur utilisation comme colorants.
FR2528461A1 (fr) Procede de preparation de papier azure
JPS62167361A (ja) カチオン化合物及びそれを用いる基材の染色法
FR2981955A1 (fr) Papier de securite infalsifiable aux agents oxydo-reducteurs
FR2693749A1 (fr) Feuille infalsifiable par agent chimique et document de sécurité obtenu.
FR2694772A1 (fr) Feuille infalsifiable par agent chimique et document de sécurité obtenu.

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): BE DE ES FR GB IT NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE DE ES FR GB IT NL

17P Request for examination filed

Effective date: 19910906

17Q First examination report despatched

Effective date: 19920722

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE ES FR GB IT NL

REF Corresponds to:

Ref document number: 68909205

Country of ref document: DE

Date of ref document: 19931021

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930927

ITF It: translation for a ep patent filed

Owner name: JACOBACCI CASETTA & PERANI S.P.A.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2058586

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Ref country code: FR

Ref legal event code: CA

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20021121

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20021129

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20021209

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20021211

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20030102

Year of fee payment: 14

NLS Nl: assignments of ep-patents

Owner name: LANA MANUFACTURE DE PAPIER

NLT1 Nl: modifications of names registered in virtue of documents presented to the patent office pursuant to art. 16 a, paragraph 1

Owner name: INTERNATIONAL PAPER SA

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20031003

Year of fee payment: 15

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031206

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20031231

BERE Be: lapsed

Owner name: *AUSSEDAT-REY

Effective date: 20031231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040701

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040701

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20031206

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040701

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050831

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051206