FR2643661A1 - Substrate for printing-writing capable of being authenticated using heat - Google Patents
Substrate for printing-writing capable of being authenticated using heat Download PDFInfo
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- FR2643661A1 FR2643661A1 FR8902382A FR8902382A FR2643661A1 FR 2643661 A1 FR2643661 A1 FR 2643661A1 FR 8902382 A FR8902382 A FR 8902382A FR 8902382 A FR8902382 A FR 8902382A FR 2643661 A1 FR2643661 A1 FR 2643661A1
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- salt
- support
- support according
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- substrate
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Classifications
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- 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
- D21H21/48—Elements suited for physical verification, e.g. by irradiation
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- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
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- 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
- Paper (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
Abstract
Description
SUPPORT POUR IMPRESSION-ECRITURE AUTHENTIFIABLE PAR LA CHALEUR.SUPPORT FOR HEAT AUTHENTICABLE PRINT-WRITING.
La présente demande concerne un support pour impression-écriture, notamment du papier, réagissant à une éventuelle falsification par agent chimique et authentifiable par la chaleur par changement réversible de coloration.The present application relates to a support for printing-writing, in particular paper, reacting to a possible falsification by chemical agent and authenticated by heat by reversible change in coloring.
Elle concerne surtout le domaine des papiers de sécurité utilisables pour la réalisation de pièces de paiement manuscrites et de documents officiels tels que, notamment, chèques, papier monnaie, bons de caisse d'épargne, livrets de compte, livres d'écritures comptables, titres, papiers timbrés, actes notariés, titres de transport, billets d'entrée à des manifestations sportives, culturelles ou autres et, de façon générale, tous papiers de sécurité et moyen de sécurité comparables tels que cartes de crédit, etc.It mainly concerns the area of security papers which can be used for the production of handwritten payment documents and official documents such as, in particular, checks, paper money, savings bank vouchers, account books, accounting books, securities. , stamped papers, notarial deeds, transport tickets, entrance tickets to sporting, cultural or other events and, in general, all comparable security papers and means of security such as credit cards, etc.
Dans la demande de brevet nO 87 12243 du 3 septembre 1987, on a décrit l'utilisation de sels de cobalt répartis dans la masse ou sur la surface d'un support impression-écriture pour authentifier ce support à la chaleur par changement réversible de coloration et pour déceler, au moyen d'une réaction colorée, une falsification de ce support par une solution réductrice de bisulfite de sodium utilisée dans les effaceurs de type CORECTOR R
On a déjà proposé dans le passé des papiers contenant des réactifs chimiques aux agents chimiques qui peuvent etre utilisés pour falsifier les écritures en décolorant chimiquement les encres (documents ARJOMARI FR-A-2 365 656, FR-A-2 399 505, FR-A-2 402 739, EP-A-174 885, documents papeteries de VOIRON ET DES GORGES
FR-A-2 406 027).In patent application No. 87 12243 of September 3, 1987, the use of cobalt salts distributed in the mass or on the surface of a print-write support has been described to authenticate this support to heat by reversible change in color. and to detect, by means of a colored reaction, a falsification of this support by a reducing solution of sodium bisulfite used in erasers of the CORECTOR R type
Papers containing chemical reagents to chemical agents have already been proposed in the past which can be used to falsify writings by chemically bleaching the inks (documents ARJOMARI FR-A-2 365 656, FR-A-2 399 505, FR- A-2 402 739, EP-A-174 885, documents from VOIRON ET DES GORGES stationery
FR-A-2 406 027).
On a décrit l'utilisation de la thermochromie pour l'authentification des papiers de sécurité dans les documents DE
A-l 228 972 et AT-A-362 658. Cependant, ces procédés mettaient en oeuvre des produits peu courants, coûteux et d'utilisation difficile en papeterie. Le document GB-A-1 565 243 décrit une authentification par thermochromie à l'aide de substances thermochromiques et thermomagnétiques. We have described the use of thermochromy for the authentication of security papers in DE documents.
Al 228 972 and AT-A-362 658. However, these methods used unusual products, expensive and difficult to use in stationery. GB-A-1 565 243 describes a thermochromic authentication using thermochromic and thermomagnetic substances.
Par ailleurs, on a décrit dans le document AUSEDAT-REY FR-A2 597 897 un papier de sécurité authentifiable par thermochromie contenant un violet lactone et un acide organique, mais un tel papier a tendance à se colorer dans le temps.Furthermore, in the document AUSEDAT-REY FR-A2 597 897, a security paper which can be authenticated by thermochromy containing a violet lactone and an organic acid has been described, but such a paper tends to be colored over time.
On a également décrit dans le document US-A-2 005 105 un papier réagissant aux agents blanchissants ou oxydants, ce papier étant traité avec une encre contenant du ferrocyanure de cobalt. Dans le document US-A-1 804 978 on a décrit un papier réagissant aux effaceurs d'encre, traité avec une solution contenant de l'eau, de l'alcool, de l'iode, du nitrate de cobalt et du thiosulfate de sodium.Document US-A-2 005 105 has also described a paper reacting to bleaching or oxidizing agents, this paper being treated with an ink containing cobalt ferrocyanide. Document US-A-1 804 978 describes a paper which reacts to ink erasers, treated with a solution containing water, alcohol, iodine, cobalt nitrate and thiosulphate. sodium.
Le document DE-A-42 260 décrit un papier réagissant aux effaceurs à base de chlore, ce papier étant traité par une encre contenant un oxyde de manganèse sulfaté ou du chlorure de cobalt.Document DE-A-42 260 describes a paper reacting to chlorine-based erasers, this paper being treated with an ink containing a sulfated manganese oxide or cobalt chloride.
Le document FR-A-I 509 715 décrit un papier destiné à réagir au bisulfite contenant du ferrocyanure de manganèse et un sel métallique insoluble dans l'eau et formant un ferrocyanure coloré.Document FR-A-I 509 715 describes a paper intended to react to bisulfite containing manganese ferrocyanide and a metal salt insoluble in water and forming a colored ferrocyanide.
C'est ce ferrocyanure qui confère la coloration au papier par action du bisulfite Le sel métallique peut être du sel de métal de transition.It is this ferrocyanide which confers the coloring to the paper by the action of bisulfite. The metal salt can be a transition metal salt.
Ainsi, d'après ces publications; les sels de métaux de transition sont toujours utilisés en association avec d'autres sels pour obtenir soit une réaction aux agents blanchissants ou oxydants, soit une reaction au bisulfite. L'homme du métier était donc conduit à associer les sels métalliques avec d'autres sels.Thus, according to these publications; the transition metal salts are always used in combination with other salts to obtain either a reaction with bleaching or oxidizing agents, or a reaction with bisulfite. A person skilled in the art was therefore led to associate the metal salts with other salts.
En outre, la plupart des papiers de sécurité disponibles sur le marché ne possèdent pas de procédé d'authentification simple et réversible cumulable avec une protection contre les falsifications.In addition, most security papers available on the market do not have a simple and reversible authentication process which can be combined with protection against falsification.
Un but de l'invention est donc l'obtention d'un support pour impression-écriture, de sécurité et de préférence non fluorescent, authentifiable à la chaleur de façon réversible, grace à une composition chimique simple ne modifiant pas notablement la coloration du papier et étant en outre compatible avec les autres réactifs connus de sensibilisation aux acides, bases, oxydants, crayons effaceurs, solvants organiques.An object of the invention is therefore to obtain a support for printing-writing, security and preferably non-fluorescent, authenticated with heat in a reversible manner, thanks to a simple chemical composition which does not significantly modify the coloring of the paper. and also being compatible with the other known reagents for sensitizing to acids, bases, oxidants, erasers, organic solvents.
Un autre but de l'invention est l'obtention d'un papier de sécurité, réagissant au bisulfite.Another object of the invention is to obtain a security paper, reacting with bisulfite.
La demanderesse, au terme d'essais intensifs et prolongés, a finalement retenu que le but de l'invention pouvait être atteint en incorporant, dans ou sur le support impression-écriture, une composition chimique contenant au moins un sel métallique coloré à l'état humide et d'une couleur différente à l'état sec, la quantité de sel par rapport au support, en poids sec, étant telle que la coloration du support n'est sensiblement pas affectée à température ambiante, et la coloration du support étant modifiée de façon réversible avec la température. Lorsque la composition chimique ne contient qu'un seul sel métallique, il ne s'agit pas d'un sel de cobalt de degré d'oxydation 2, et en particulier du chlorure de cobalt.The Applicant, after intensive and prolonged tests, finally accepted that the object of the invention could be achieved by incorporating, in or on the print-write support, a chemical composition containing at least one metallic salt colored with wet state and of a different color when dry, the amount of salt relative to the support, in dry weight, being such that the coloring of the support is not substantially affected at room temperature, and the coloring of the support being reversibly changed with temperature. When the chemical composition contains only one metal salt, it is not a cobalt salt of oxidation state 2, and in particular cobalt chloride.
De préférence, on choisit des sels métalliques pouvant passer d'un état cristallin d'une couleur à un état cristallin d'une autre couleur et plus particulièrement les sels de cuivre et de préférence de degré d'oxydation 2.Preferably, metal salts which can pass from a crystalline state of one color to a crystalline state of another color are chosen, and more particularly copper salts and preferably of oxidation state 2.
Le support impression-écriture est de préférence un papier à base de fibres cellulosiques ou un support plastique revetu d'une coche lui conférant la propriété de pouvoir etre imprimé ou recevoir une écriture. Il contient toujours de 5 à 7% d'eau après passage en sècherie. La quantité de sels métalliques par rapport au support en poids sec est suffisamment faible (0,1 à 4%), pour ne pas conférer de couleur au papier dans des conditions normales d'utilisation, même après passage en sècherie du support impression-écriture. Compte tenu de la faible quantité en sel métallique incorporée au support et de la teneur en eau restant dans ce support, le sel métallique reste à l'état hydraté.The print-write support is preferably a paper based on cellulose fibers or a plastic support coated with a tick giving it the property of being able to be printed or to receive a writing. It always contains 5 to 7% water after going through drying. The amount of metal salts with respect to the support by dry weight is sufficiently low (0.1 to 4%), so as not to impart color to the paper under normal conditions of use, even after drying the print-write support . Given the small amount of metal salt incorporated in the support and the water content remaining in this support, the metal salt remains in the hydrated state.
En effet, les sels métalliques et en particulier de cuivre de degré d'oxydation 2 sont généralement colorés mais leur introduction dans le papier affecte peu la teinte originale du papier à siccité normale et n'apporte pas de fluorescence. Le chlorure de cuivre dihydraté est bleu-vert. Si on incorpore ce sel à un papier et à une teneur de 1% en poids sec par rapport au papier, le papier obtenu est blanc à atmosphère ambiante. Quand on chauffe ce papier à 1000C environ, il prend une coloration jaune nais qui s'estompe spontanément et rapidement quand la papier est remis en atmosphère ambiante.In fact, the metal and in particular copper salts of oxidation state 2 are generally colored, but their introduction into the paper has little effect on the original tint of the paper with normal dryness and does not bring any fluorescence. Copper chloride dihydrate is blue-green. If this salt is incorporated into a paper and at a content of 1% by dry weight relative to the paper, the paper obtained is white at ambient atmosphere. When this paper is heated to about 1000C, it takes on a dull yellow color which spontaneously and quickly fades when the paper is returned to the ambient atmosphere.
Ce phénomène de coloration, amené par la présence de sels de cuivre de degré d'oxydation 2 dans le papier, n'est visible qu'à des températures élevées ; il n'est donc pas gênant dans les conditions quotidiennes d'utilisation de papiers de sécurité. Au contraire, cette coloration lors de la déshydratation du papier peut être utilisée comme système d'authentification à la chaleur, facile et non destructif, d'un papier de sécurité de ce type.This coloring phenomenon, brought about by the presence of copper salts of degree of oxidation 2 in the paper, is only visible at high temperatures; it is therefore not annoying in the daily conditions of use of security papers. On the contrary, this coloring when the paper is dehydrated can be used as an easy and non-destructive heat authentication system for this type of security paper.
Le papier peut être authentifié par un chauffage ponctuel avec des machoires chauffantes, un souffle d'air chaud, un stylo chauffant.The paper can be authenticated by a specific heating with heating jaws, a breath of hot air, a heating pen.
Selon l'invention, on peut ajouter des sels dessicants, en particulier du chlorure de sodium, dans le papier, en abaissant la quantité d'eau disponible, ce qui permet d'abaisser le seuil de température de changement de coloration.According to the invention, desiccant salts, in particular sodium chloride, can be added to the paper, by lowering the amount of water available, which makes it possible to lower the temperature threshold for color change.
D'autre part, on a constaté de manière surprenante que l'addition de sels de cuivre dans le papier permet d'obtenir une réaction (donc une protection) avec plusieurs agents de falsification comme l'hypochlorite, les alcalis et le bisulfite de sodium. Cette réaction est obtenue en introduisant le sel de cuivre seul.On the other hand, it has surprisingly been found that the addition of copper salts in the paper makes it possible to obtain a reaction (and therefore protection) with several falsifying agents such as hypochlorite, alkalis and sodium bisulfite . This reaction is obtained by introducing the copper salt alone.
Ainsi, l'invention permet d'obtenir un support impressionécriture, authentifiable à la chaleur et infalsifiable par agent chimique, en introduisant un composé unique dans le papier.Thus, the invention makes it possible to obtain a print-writing medium, which can be authenticated by heat and cannot be forged by chemical agent, by introducing a single compound into the paper.
Selon l'invention, le papier peut avoir une composition fibreuse quelconque, purement cellulosique, ou partie synthétique, à partir de fibres synthétiques ou films synthétiques couchés, plus brièvement ci-après "papier", à laquelle on peut ajouter les adjuvants classiques de papeterie, à savoir - charges minérales, agents de résistance divers, liants, résines, colorants de nuançage, produits de collage neutre, acide ou basique, sulfate d'alumine pour collage acide ou réglage du pH, etc. According to the invention, the paper can have any fibrous composition, purely cellulosic, or synthetic part, from synthetic fibers or coated synthetic films, more briefly hereinafter "paper", to which the conventional stationery additives can be added. , namely - mineral fillers, various resistance agents, binders, resins, tinting dyes, neutral, acid or basic bonding products, alumina sulfate for acid bonding or pH adjustment, etc.
Les sels de cuivre étant généralement très solubles, l'introduction de ces produits selon l'invention peut se faire préférentiellement par imprégnation au moyen d'une presse encolleuse ou par couchage.Since the copper salts are generally very soluble, the introduction of these products according to the invention can preferably be carried out by impregnation by means of a size press or by coating.
La réaction à la chaleur est perceptible à l'oeil nu à partir de 500 ppm de sel métallique de degré d'oxydation 2 dans le papier, mais, pour une réactivité bien visible et rapide, des doses industrielles comprises entre 0,1% et 4% de sels d'un métal de degré d'oxydation 2 sont plus adéquates.The reaction to heat is perceptible to the naked eye from 500 ppm of metal salt of oxidation state 2 in the paper, but, for a clearly visible and rapid reactivity, industrial doses of between 0.1% and 4% of salts of a metal with an oxidation state of 2 are more suitable.
Ces papiers peuvent également contenir dans leur masse, à l'état pigmentaire dispersé, des colorants insolubles dans l'eau mais organosolubles, de façon à préserver les écritures ou mentions portées sur ces papiers vis-à-vis de tentatives de falsification à l'aide de solvants organiques. De plus, ces papiers peuvent être filigranés ou contenir divers artifices destinés à en assurer la reconnaissance.These papers may also contain in their mass, in the dispersed pigmentary state, dyes insoluble in water but organosoluble, so as to preserve the writings or mentions made on these papers vis-à-vis attempts at falsification with using organic solvents. In addition, these papers can be watermarked or contain various devices intended to ensure recognition.
Ainsi, l'invention permet-elle de fabriquer un papier blanc, non fluorescent, authentifiable de façon réversible par la chaleur et qui développe en présence d'une tentative de falsification chimique des colorations décelables à l'oeil nu sur ce papier.Thus, the invention makes it possible to manufacture a white, non-fluorescent paper, authentically reversible by heat and which develops, in the presence of an attempt at chemical falsification, colors detectable with the naked eye on this paper.
Le papier qui fait l'objet de la présente invention peut ètre imprimé par l'une quelconque des méthodes d'impression, et est utilisable comme support d'écriture manuscrite losqu'on désire une permanence des mentions portées et une découverte d'éventuelles tentatives de falsification de ces écritures. Il est particulièrement intéressant de l'appliquer à la réalisation de pièces de paiement manuscrites non fluorescentes telles que chèques, bons de caisse, livrets de compte d'épargne, d'actes officiels, billets de banque, etc.The paper which is the subject of the present invention can be printed by any of the printing methods, and can be used as a handwriting medium when it is desired that the information given be permanent and that any attempts be discovered. of falsification of these writings. It is particularly interesting to apply it to the production of non-fluorescent handwritten payment documents such as checks, cash vouchers, savings account books, official documents, banknotes, etc.
Bien que la plupart des papiers de sécurité utilisés soient blancs, on peut envisager d'incorporer également ce moyen d'infalsification dans un papier de sécurité non blanc, mais de couleur.Although most of the security papers used are white, one can also consider incorporating this tamper-evident means into a security paper that is not white, but colored.
Les exemples suivants illustrent l'invention sans toutefois en diminuer la portée. The following examples illustrate the invention without, however, reducing its scope.
EXEMPLE 1
Sur un support papier impression-écriture est déposée en surface par une technique papetière classique (presse encolleuse) la solution aqueuse d'enduction comprenant par litre de liquide - 100 g d'amidon, - 15 g de chlorure de cuivre, dihydraté.EXAMPLE 1
The aqueous coating solution comprising, per liter of liquid - 100 g of starch, - 15 g of copper chloride, dihydrate, is deposited on the surface of a printing-writing paper support by a conventional papermaking technique (size press).
Le papier, s'il est porté localement autour de 1000C, prend immédiatement une teinte jaune qui disparaît en quelques minutes après l'arrêt du chauffage.The paper, if worn locally around 1000C, immediately takes on a yellow tint which disappears in a few minutes after the heating has stopped.
On obtient un papier blanc qui réagit en orangé au bisulfite de sodium ou à l'application consécutive d'une solution de permanganate et de bisulfite de sodium.A white paper is obtained which reacts in orange to sodium bisulfite or to the subsequent application of a solution of permanganate and sodium bisulfite.
EXEMPLE 2
Sur un support papier identique à l'exemple 1, est déposée en surface par une technique papetière classique (presse encolleuse) la solution aqueuse d'enduction comprenant par litre de liquide - 100 g d'amidon - 15 g de sulfate de cuivre, pentahydraté - 10 g de chlorure de sodium
Le papier, s'il est porté localement autour de 1000C prend une teinte jaune qui disparait en quelques minutes après l'arrêt du chauffage. On obtient une réaction en orangé au bisulfite-de sodium.EXAMPLE 2
On a paper support identical to Example 1, is deposited on the surface by a conventional papermaking technique (size press) the aqueous coating solution comprising per liter of liquid - 100 g of starch - 15 g of copper sulphate, pentahydrate - 10 g of sodium chloride
The paper, if worn locally around 1000C takes on a yellow tint which disappears in a few minutes after the heating has stopped. An orange-sodium bisulfite reaction is obtained.
EXEMPLE 3 hêne procédé et mènes résultats que pour l'exemple 2 avec 13 g d'acétate de cuivre monohydraté à la place du sulfate de cuivre. EXAMPLE 3 oak process and same results as for example 2 with 13 g of copper acetate monohydrate in place of copper sulphate.
EXEMPLE 4
Sur un support type billet de banque est déposée en surface par une technique papetière classique (presse encolleuse) la solution d'enduction comprenant par litre de liquide - 100 g d'alcool polyvinylique - 15 g de chlorure de cobalt dihydraté - 12 g de chlorure de sodium
On obtient un papier blanc. Ce papier prend une coloration jaune à partir de 800C. I1 est donc facilement authentifiable par chauffage ponctuel du papier. Le papier reprend sa teinte initiale spontanément en quelques minutes après l'arrêt du chauffage. De plus, le papier réagit fortement au bisulfite de sodium.EXAMPLE 4
On a banknote-type support is deposited on the surface by a conventional papermaking technique (size press) the coating solution comprising per liter of liquid - 100 g of polyvinyl alcohol - 15 g of cobalt chloride dihydrate - 12 g of chloride sodium
We get a white paper. This paper takes a yellow color from 800C. It is therefore easily authenticated by occasional heating of the paper. The paper returns to its original color spontaneously in a few minutes after the heating has stopped. In addition, the paper reacts strongly to sodium bisulfite.
EXEMPLES 5
Sur un support plastique en polyéthylène à haute densité est couchée par une technique papetière classique (lame trainante, lame d'air, ...) la sauce aqueuse de couchage comprenant pas litre de liquide - 400 g de charges dispersées (kaolin, talc, carbonate) - 200 g de latex - 25 g de chlorure de cuivre dihydraté.EXAMPLES 5
On a plastic support in high density polyethylene is coated by a conventional papermaking technique (drag blade, air knife, ...) the aqueous coating sauce comprising no liter of liquid - 400 g of dispersed fillers (kaolin, talc, carbonate) - 200 g of latex - 25 g of copper chloride dihydrate.
Le plastique couché est blanc. Lorsqu'on le chauffe localement, il prend une couleur jaune qui disparaît spontanément en quelques minutes après l'arrêt du chauffage. The coated plastic is white. When heated locally, it takes on a yellow color which disappears spontaneously in a few minutes after the heating has stopped.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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FR898902382A FR2643661B1 (en) | 1987-09-03 | 1989-02-24 | HOLDER FOR AUTHENTICABLE WARM PRINT-WRITING |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR878712243A FR2620146B1 (en) | 1987-09-03 | 1987-09-03 | MEANS, PAPER AND SECURITY DOCUMENT AGAINST CHEMICAL FALSIFICATION AND COUNTERFEITING |
FR898902382A FR2643661B1 (en) | 1987-09-03 | 1989-02-24 | HOLDER FOR AUTHENTICABLE WARM PRINT-WRITING |
Publications (2)
Publication Number | Publication Date |
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FR2643661A1 true FR2643661A1 (en) | 1990-08-31 |
FR2643661B1 FR2643661B1 (en) | 1991-05-10 |
Family
ID=9354600
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR878712243A Expired - Fee Related FR2620146B1 (en) | 1987-09-03 | 1987-09-03 | MEANS, PAPER AND SECURITY DOCUMENT AGAINST CHEMICAL FALSIFICATION AND COUNTERFEITING |
FR898902382A Expired - Lifetime FR2643661B1 (en) | 1987-09-03 | 1989-02-24 | HOLDER FOR AUTHENTICABLE WARM PRINT-WRITING |
FR909015510A Expired - Fee Related FR2654446B1 (en) | 1987-09-03 | 1990-12-11 | MEANS, PAPER AND SECURITY DOCUMENT AGAINST CHEMICAL FALSIFICATION AND COUNTERFEITING. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR878712243A Expired - Fee Related FR2620146B1 (en) | 1987-09-03 | 1987-09-03 | MEANS, PAPER AND SECURITY DOCUMENT AGAINST CHEMICAL FALSIFICATION AND COUNTERFEITING |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR909015510A Expired - Fee Related FR2654446B1 (en) | 1987-09-03 | 1990-12-11 | MEANS, PAPER AND SECURITY DOCUMENT AGAINST CHEMICAL FALSIFICATION AND COUNTERFEITING. |
Country Status (9)
Country | Link |
---|---|
BE (2) | BE1011816A4 (en) |
CH (2) | CH679411A5 (en) |
DE (1) | DE3829002C3 (en) |
DK (2) | DK487888A (en) |
ES (1) | ES2008020A6 (en) |
FR (3) | FR2620146B1 (en) |
GB (2) | GB2209304B (en) |
IT (1) | IT1226420B (en) |
NL (2) | NL191211C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0608078A1 (en) * | 1993-01-20 | 1994-07-27 | Portals (Bathford) Limited | Security threads and security paper using the same |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1024874A (en) * | 1963-10-04 | 1966-04-06 | Birmingham Small Arms Co Ltd | Improvements in or relating to rotary piston internal combustion engines |
FR2639970B1 (en) * | 1988-12-07 | 1991-09-20 | Aussedat Rey | NON-FLUORESCENT, NON-FLUORESCENT SECURITY PAPER AND DOCUMENT OBTAINED |
DE19833746A1 (en) * | 1998-07-27 | 2000-02-03 | Joergen Brosow | Security paper and method for checking authenticity of documents recorded on it protects securities like bank notes against forgery by using embedded electronic switching circuit |
FR2943074B1 (en) * | 2009-03-13 | 2011-05-20 | Arjowiggins Security | LASER MARKABLE SUBSTRATE AND METHOD FOR MANUFACTURING THE SAME |
CN103730071B (en) * | 2013-12-30 | 2017-05-03 | 深圳市华星光电技术有限公司 | OLED panel, manufacturing method thereof and encapsulation effect detection method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2909731A1 (en) * | 1978-03-15 | 1979-09-20 | Oesterr Nationalbank | Automatic banknote testing - uses thermo-chromatic dyestuff strips and controlled temps. to check colour change |
JPS5787396A (en) * | 1980-11-18 | 1982-05-31 | Sadao Nishi | Chemical agent for marking paper money |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE109201C (en) * | ||||
DE42260C (en) * | 1900-01-01 | A. ZEISS in Berlin W., Charlottenstr. 68 | Manufacture of security paper | |
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 |
DE660599C (en) * | 1934-02-08 | 1938-05-31 | Felix Schoeller & Bausch | Process for the production of security paper |
DE1228972B (en) * | 1959-06-06 | 1966-11-17 | Dr Karlheinz Koenig | Identification of authenticity of securities |
FR1509715A (en) * | 1966-02-04 | 1968-01-12 | Inveresk Paper Company Ltd | Security paper |
FR2399505A1 (en) * | 1976-05-25 | 1979-03-02 | Arjomari Prioux | Security paper for prepn. of official documents etc. - is coated with or contains oxy:pyrene-tri:sulphonic acid or a salt of the acid |
FR2365656A1 (en) * | 1976-05-25 | 1978-04-21 | Arjomari Prioux | SECURITY PAPER |
FR2402739A2 (en) * | 1976-05-25 | 1979-04-06 | Arjomari Prioux | Security paper for handwritten cheques and documents - impregnated with salts of pyrene-sulphonic acids |
FR2406027A1 (en) * | 1977-10-14 | 1979-05-11 | Voiron Papeteries | Security paper treated with a nitrophenol - showing, in a range of colours from yellow to violet, any attempt at alteration using alkaline media |
GB1565243A (en) * | 1977-12-02 | 1980-04-16 | Emi Ltd | Recording data in eye-visible and machine readable magnetic form |
NO158550C (en) * | 1986-03-26 | 1988-09-28 | Niels A Andersen | USE OF A SUBSTANCE FOR DISPOSAL OF COPY OF THE DOCUMENT. |
FR2797895B1 (en) * | 1999-09-01 | 2001-11-09 | Mathieu Yno S A | SELF-CLEANING CYLINDRICAL BRUSH FOR SWEEPERS OR OTHER VEHICLES |
-
1987
- 1987-09-03 FR FR878712243A patent/FR2620146B1/en not_active Expired - Fee Related
-
1988
- 1988-08-26 DE DE3829002A patent/DE3829002C3/en not_active Expired - Lifetime
- 1988-08-30 IT IT8821782A patent/IT1226420B/en active
- 1988-08-30 BE BE8800982A patent/BE1011816A4/en not_active IP Right Cessation
- 1988-09-02 ES ES8802711A patent/ES2008020A6/en not_active Expired
- 1988-09-02 CH CH498/91A patent/CH679411A5/fr not_active IP Right Cessation
- 1988-09-02 CH CH3291/88A patent/CH677241A5/fr not_active IP Right Cessation
- 1988-09-02 GB GB8820751A patent/GB2209304B/en not_active Expired - Fee Related
- 1988-09-02 DK DK487888A patent/DK487888A/en not_active Application Discontinuation
- 1988-09-02 NL NL8802167A patent/NL191211C/en not_active IP Right Cessation
-
1989
- 1989-02-24 FR FR898902382A patent/FR2643661B1/en not_active Expired - Lifetime
-
1990
- 1990-12-11 FR FR909015510A patent/FR2654446B1/en not_active Expired - Fee Related
-
1991
- 1991-01-30 BE BE9100085A patent/BE1011817A4/en not_active IP Right Cessation
- 1991-02-19 DK DK028391A patent/DK28391A/en not_active Application Discontinuation
- 1991-02-20 GB GB9102451A patent/GB2240511B/en not_active Expired - Fee Related
- 1991-03-08 NL NL9100419A patent/NL9100419A/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2909731A1 (en) * | 1978-03-15 | 1979-09-20 | Oesterr Nationalbank | Automatic banknote testing - uses thermo-chromatic dyestuff strips and controlled temps. to check colour change |
JPS5787396A (en) * | 1980-11-18 | 1982-05-31 | Sadao Nishi | Chemical agent for marking paper money |
Non-Patent Citations (1)
Title |
---|
ABSTRACT BULLETIN OF THE INSTITUTE OF PAPER CHEMISTRY, vol. 54, no. 2, août 1983, abrégé no. 2084, Appleton, Wisconsin, US; S. NISHI: "Reagents for marking paper money", & JP-A-57 087396 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0608078A1 (en) * | 1993-01-20 | 1994-07-27 | Portals (Bathford) Limited | Security threads and security paper using the same |
Also Published As
Publication number | Publication date |
---|---|
NL8802167A (en) | 1989-04-03 |
NL191211B (en) | 1994-10-17 |
FR2643661B1 (en) | 1991-05-10 |
GB2240511B (en) | 1992-05-13 |
FR2654446A1 (en) | 1991-05-17 |
CH677241A5 (en) | 1991-04-30 |
NL191211C (en) | 1995-03-16 |
DK487888A (en) | 1989-03-04 |
GB9102451D0 (en) | 1991-03-20 |
BE1011816A4 (en) | 2000-02-01 |
DK28391D0 (en) | 1991-02-19 |
DE3829002C3 (en) | 1997-09-04 |
GB2240511A (en) | 1991-08-07 |
BE1011817A4 (en) | 2000-02-01 |
DK28391A (en) | 1991-02-19 |
ES2008020A6 (en) | 1989-07-01 |
FR2654446B1 (en) | 1992-10-16 |
FR2620146A1 (en) | 1989-03-10 |
GB8820751D0 (en) | 1988-10-05 |
IT1226420B (en) | 1991-01-15 |
CH679411A5 (en) | 1992-02-14 |
NL9100419A (en) | 1991-06-03 |
GB2209304B (en) | 1992-05-13 |
IT8821782A0 (en) | 1988-08-30 |
DE3829002A1 (en) | 1989-03-16 |
FR2620146B1 (en) | 1991-10-04 |
DK487888D0 (en) | 1988-09-02 |
GB2209304A (en) | 1989-05-10 |
DE3829002C2 (en) | 1995-01-05 |
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