FR2654446A1 - Safety means, paper and document against falsification using a chemical agent and forgery - Google Patents
Safety means, paper and document against falsification using a chemical agent and forgery Download PDFInfo
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- FR2654446A1 FR2654446A1 FR9015510A FR9015510A FR2654446A1 FR 2654446 A1 FR2654446 A1 FR 2654446A1 FR 9015510 A FR9015510 A FR 9015510A FR 9015510 A FR9015510 A FR 9015510A FR 2654446 A1 FR2654446 A1 FR 2654446A1
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- Prior art keywords
- paper
- cobalt
- papers
- forgery
- security
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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
La présente invention concerne un moyen de sécurité, notamment pour papier, réagissant à une éventuelle falsification par agent chimique. The present invention relates to a security means, in particular for paper, reacting to a possible falsification by chemical agent.
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'Epargne, livrets de compte, livres d'écritures comptables, titres, papiers timbrés, actes notariés, titres de transport et, de façon générale, tous papiers de sécurité et moyens de sécurité comparables tels que cartes de crédit, etc... It mainly concerns the field of usable security papers, for the production of handwritten payment vouchers and official documents such as, in particular, checks, paper money, savings bank vouchers, account books, accounting ledgers, titles, stamped papers, notarial acts, transport tickets and, in general, all security papers and comparable security means such as credit cards, etc.
Pour tous ces papiers de sécurité, il est nécessaire de se prémunir contre toute tentative de falsification de l'écriture ou cachet porté sur ces dits papiers. La falsification peut être mécanique (gommage ou grattage) ou chimique : à l'aide d'agents chimiques permettant d'éliminer proprement les encres colorées actuellement employées pour L'écriture manuscrite ou l'impression par tampons encreurs. For all these security papers, it is necessary to guard against any attempt to falsify the writing or stamp carried on these so-called papers. The falsification can be mechanical (scrubbing or scraping) or chemical: using chemical agents making it possible to cleanly remove the colored inks currently used for Handwriting or printing by ink pads.
Les papiers de sécurité connus peuvent, outre le filigrane et autres éléments de sécurité physiques, tels que fils, fibres, etc... contenir certains réactifs apportant une sensibilisation aux agents chimiques qui peuvent être utilisés pour falsifier les écritures en décolorant chimiquement Les encres. On a par exemple déjà proposé des papiers contenant des réactifs chimiques aux agents chimiques de falsification tels que acides, alcalis, agents décolorants chlorés tels que l'eau de chlore et l'eau de javel, crayons effaceurs d'encres (documents ARJOMARI
FR-A-2 365 656, FR-A-2 399 505, FR-A-2 402 739, documents
Papeteries de VOIRON et des Gorges FR-A-2 406 027) et agents oxydants réducteurs utilisés dans les effaceurs type "CORECT0R" (document ARJOMARI EP-A-174 885).Known security papers may, in addition to the watermark and other physical security elements, such as threads, fibers, etc., contain certain reagents bringing awareness of the chemical agents which can be used to falsify the writings by chemically bleaching the inks. For example, papers have already been proposed containing chemical reagents to chemical falsification agents such as acids, alkalis, chlorinated bleaching agents such as chlorine water and bleach, ink erasing pencils (ARJOMARI documents
FR-A-2 365 656, FR-A-2 399 505, FR-A-2 402 739, documents
VOIRON and Gorges paper mills FR-A-2 406 027) and reducing oxidizing agents used in "CORECT0R" type erasers (document ARJOMARI EP-A-174 885).
Parmi tous ces agents de falsification, le bisulfite de sodium est un agent réducteur efficace dans l'effaçage : il est utilisé dans les effaceurs type CORECTOR CR et peut être très efficace pour estomper ou faire disparaître Les taches provoquées par les falsifications de papiers dits "infalsifiables". Among all these falsifying agents, sodium bisulfite is an effective reducing agent in erasing: it is used in erasers of the CORECTOR CR type and can be very effective in blurring or making disappear Stains caused by falsifications of so-called papers " tamper-proof ".
A.la connaissance de l'inventeur, il n'existe qu'un seul système de protection contre ce type de réactif : Le couple 2-2' bipyridyle-Fe 3+ (voir EP-A-174 885) qui produit une tache rose à rouge pour toute tentative de falsification au bisulfite. Il est souhaitable de poursuivre dans cet axe de recherche en écartant les produits organiques pour leur toxicité et leur mauvaise stabilité et en se focalisant sur les sels métalliques, en général plus stables chimiquement et moins toxiques. A. to the knowledge of the inventor, there is only one protection system against this type of reagent: The 2-2 'bipyridyl-Fe 3+ pair (see EP-A-174 885) which produces a stain pink to red for any attempt to tamper with bisulfite. It is desirable to continue in this line of research by ruling out organic products for their toxicity and poor stability and by focusing on metal salts, in general more chemically stable and less toxic.
De plus, la protection du papier contre les falsifications doit faire intervenir des produits non fluorescents. En effet, la fluorescence constitue une limitation de la sécurité de ces papiers, car la non fluorescence est un signe de reconnaissance très souvent utilisé, notamment au niveau des banques et dans Le grand public. On sait que les papiers, notamment pour impression-écriture, sont pratiquement toujours fluorescents, la fluorescence étant due à des adjuvants améliorant la blancheur du papier. In addition, the protection of paper against forgery must involve non-fluorescent products. Indeed, fluorescence constitutes a limitation of the security of these papers, since non fluorescence is a sign of recognition very often used, in particular at the level of banks and in the general public. It is known that papers, in particular for printing-writing, are almost always fluorescent, the fluorescence being due to additives improving the whiteness of the paper.
Etant donné que l'approvisionnement en papier impression écriture non fluorescent est très surveillé, les contrefacteurs, à moins de pouvoir détourner du papier non fluorescent, auront toute chance d'utiliser un papier fluorescent. Un papier non fluorescent constitue donc une prévention très efficace de la contrefaçon et, lorsque l'on travaille sur un tel papier que l'on est parvenu à rendre non fluorescent, il est évidemment essentiel que les agents de sécurité incorporés dans Le papier n'apportent pas par eux-mêmes
La caractéristique de fluorescence que l'on était parvenu à éviter.Since the supply of non-fluorescent writing print paper is very tight, counterfeiters, unless they can divert non-fluorescent paper, are likely to use fluorescent paper. A non-fluorescent paper therefore constitutes a very effective prevention of counterfeiting and, when working on such a paper that we have managed to make non-fluorescent, it is obviously essential that the security agents incorporated in the paper do not not bring by themselves
The characteristic of fluorescence that we had managed to avoid.
Le but de l'invention est donc l'obtention d'un papier de sécurité non fluorescent, réagissant au bisulfite, grâce à une composition chimique 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 et solvants organiques. The object of the invention is therefore to obtain a non-fluorescent security paper, reacting with bisulfite, by virtue of a chemical composition which does not appreciably modify the coloring of the paper and which is also compatible with the other known reagents for sensitizing to acids, bases, oxidants, erasers and organic solvents.
La demanderesse, au terme d'essais intensifs et prolongés, a finalement retenu que le but de l'invention pouvait être atteint au moyen de l'incorporation de sels de cobalt de degré d'oxydation 2 dans le papier. En effet, tous les sels de cobalt de degré d'oxydation 2, une fois introduits dans le papier, donnent une sensibilité au bisulfite par une réaction de couleur orangée. The Applicant, after intensive and prolonged testing, finally accepted that the object of the invention could be achieved by incorporating cobalt salts of degree of oxidation 2 in the paper. Indeed, all the cobalt salts of degree of oxidation 2, once introduced into the paper, give a sensitivity to bisulfite by an orange-colored reaction.
Cette réaction est généralisable à tous les sels de cobalt de degré d'oxydation 2 car, indépendante de l'anion formant le sel de cobalt, elle n'implique que l'ion Co 2+ qui, en combinaison avec un anion soufré provenant de la solution de bisulfite, forme un composé coloré en orange.This reaction can be generalized to all cobalt salts of degree of oxidation 2 because, independent of the anion forming the cobalt salt, it only involves the Co 2+ ion which, in combination with a sulfur anion from bisulfite solution forms an orange colored compound.
Les sels de cobalt 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. Autour de 1000 C, un tel papier prend une coloration bleue ou violette, qui s'estompe spontanément et rapidement quand le papier est remis en atmosphère ambiante. Ce phénomène de coloration, amené par La présence de sels de cobalt 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. The cobalt salts of degree of oxidation 2 are generally colored, but their introduction into the paper has little effect on the original shade of the paper with normal dryness and does not bring any fluorescence. Around 1000 C, such paper takes on a blue or purple coloration, which spontaneously and quickly fades when the paper is returned to the ambient atmosphere. This coloring phenomenon, brought about by the presence of cobalt 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.
Selon l'invention, la 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, shading dyes, neutral, acid or basic bonding products, alumina sulfate for acid bonding or pH adjustment, etc.
Au mélange précédent, on peut aussi ajouter des réactifs sensibilisateurs analogues à ceux déjà utilisés actuellement dans les papiers de sécurité : par exemple, des produits assurant une modification de l'aspect du papier par contact de celui-ci avec des acides, des bases, des crayons effaceurs, des solvants organiques ou certains oxydants tels que l'eau de javel (hypochlorite de sodium) -
Les sels de cobalt étant généralement très solubles, l'introduction de ces produits selon Itinvention peut se faire préférentiellement par imprégnation au moyen d'une presse encolleuse ou par couchage.To the preceding mixture, it is also possible to add sensitizing reagents analogous to those already used today in security papers: for example, products ensuring a modification of the appearance of the paper by contact of the latter with acids, bases, erasers, organic solvents or certain oxidants such as bleach (sodium hypochlorite) -
Since the cobalt 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 au bisulfite est perceptible à l'oeil nu à partir de 20 ppm de cobalt 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 cobalt de degré d'oxydation 2 sont plus adéquates. The bisulfite reaction is perceptible to the naked eye from 20 ppm of cobalt of oxidation state 2 in the paper, but, for a clearly visible and rapid reactivity, industrial doses of between 0.1% and 4% of cobalt with degree of oxidation 2 are more adequate.
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-å-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 at
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, sensible au bisulfite, lequel développe en présence d'une tentative de falsification chimique des colorations décelables à L'oeil nu sur ce papier. La présence de ces compositions ntentraîne aucune modification notable d'aspect, ni de réactivité des papiers déjà sensibilisés par les techniques connues. Thus, the invention makes it possible to manufacture a white, non-fluorescent paper, sensitive to bisulfite, which develops, in the presence of an attempt at chemical falsification, colors detectable with the naked eye on this paper. The presence of these compositions does not entail any significant change in appearance or in the reactivity of the papers already sensitized by known techniques.
Le papier qui fait l'objet de la présente invention peut être imprimé par L'une quelconque des méthodes d'impression et est utilisable comme support d'écriture manuscrite lorsqu'on désire une permanence des mentions portées et une découverte d'éventuel Les tentatives de falsification de ces écritures. Il est particuliere- ment intéressant de l'appliquer à la réalisation de pièces de paiement manuscrites non fluorescentes teilles que chèques, bons de caisse, livrets de compte d'épargne, d'actes officiels, etc. The paper which is the subject of the present invention can be printed by any one of the printing methods and can be used as handwriting medium when it is desired to have permanent mention and to discover any attempts. of falsification of these writings. It is particularly interesting to apply it to the production of non-fluorescent handwritten payment vouchers such as checks, cash vouchers, savings account booklets, official documents, 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 plus blanc, mais de couleur.. Although most of the security papers used are white, one can also consider incorporating this means of tampering into a security paper, no longer white, but colored.
Les exemples suivants illustrent l'invention sans toutefois en dimunuer la portée. The following examples illustrate the invention without, however, reducing its scope.
EXEMPLE 1
Sur un support papier contenant en masse des réactifs (chlorure ferrique et précipité de ferrocyanure de manganèse) et un ou plusieurs colorants organosolubles dispersés, ces produits étant destinés à donner au papier la sensibilité aux acides et aux solvants pouvant être utilisés pour falsifier le papier, est déposée en surface par une technique papetière classique (presse encolleuse) la solution d'enduction comprenant par litre de liquide : - 100 g d'amidon, - 15 de chlorure de cobalt hexahydraté.EXAMPLE 1
On a paper support containing by mass reagents (ferric chloride and manganese ferrocyanide precipitate) and one or more dispersed organosoluble dyes, these products being intended to give the paper sensitivity to acids and solvents which can be used to falsify the paper, is deposited on the surface by a conventional papermaking technique (size press) the coating solution comprising per liter of liquid: - 100 g of starch, - 15 of cobalt chloride hexahydrate.
On obtient un papier blanc qui réagit en orange au bisulfite de sodium ou à L'addition 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 consecutive addition of a solution of permanganate and sodium bisulfite.
De plus, le papier, s'il est porté Localement autour de 1000C, prend une teinte bleue qui disparate en quelques minutes à l'arrêt du chauffage. In addition, the paper, if worn locally around 1000C, takes on a blue tint which disappears in a few minutes when the heating is stopped.
En outre, le papier ainsi traité réagit à l'hypochlorite de sodium (réaction marron), aux acides (réaction bleue), aux solvants (couleurs suivant nature des solvants). ~
EXEMPLE 2
Sur un support papier de composition identique à l'exemple 1 est déposée en surface par une technique papetière classique (presse encolleuse) la solution d'enduction comprenant par litre de liquide : - 100 g d'amidon, - 15 g de sulfate de cobalt hydraté.In addition, the paper thus treated reacts to sodium hypochlorite (brown reaction), to acids (blue reaction), to solvents (colors depending on the nature of the solvents). ~
EXAMPLE 2
On a paper support of composition identical to Example 1 is deposited on the surface by a conventional papermaking technique (size press) the coating solution comprising per liter of liquid: - 100 g of starch, - 15 g of cobalt sulfate hydrate.
On obtient des résultats similaires à l'exemple 1. Results similar to Example 1 are obtained.
EXEMPLE 3
Même procédé et mêmes résultats qu'exemple 1 avec 18 g de nitrate de cobalt hydraté à la place du chlorure de cobalt.EXAMPLE 3
Same process and same results as Example 1 with 18 g of hydrated cobalt nitrate in place of cobalt chloride.
EXEMPLE 4
Même procédé et mêmes résultats qu'exemple 1 avec 10 g de thiocyanate de cobalt hydraté à la place du chlorure de cobalt.EXAMPLE 4
Same process and same results as in Example 1 with 10 g of hydrated cobalt thiocyanate in place of cobalt chloride.
EXEMPLE 5
Même procédé et mêmes résultats qu'exemple 1 avec 15 g d'acétate de cobalt tétrahydraté à la place du chlorure de cobalt.EXAMPLE 5
Same process and same results as in Example 1 with 15 g of cobalt acetate tetrahydrate in place of cobalt chloride.
EXEMPLE 6
Même procédé et mêmes résultats qu'exemple 1 avec 15 g d'acétyl acétonate de cobalt à la place du chlorure de cobalt.EXAMPLE 6
Same process and same results as in Example 1 with 15 g of cobalt acetyl acetonate in place of cobalt chloride.
EXEMPLE 7
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 - 30 g de chlorure de cobalt hexahydraté - 10 g de chlorure de sodium.EXAMPLE 7
On a banknote-type support, the coating solution is deposited on the surface by a conventional paper technique (sizing press) comprising per liter of liquid: - 100 g of polyvinyl alcohol - 30 g of cobalt chloride hexahydrate - 10 g of sodium chloride.
On obtient un papier blanc avec une très légère nuance rose. Ce papier prend une coloration bleue à partir de 800C. Il est donc facilement authentifiable par chauffage ponctuel du papier. La réaction est réversible spontanément en quelques minutes. De plus, le papier réagit fortement au bisulfite en orange. We obtain a white paper with a very slight pink shade. This paper takes a blue color from 800C. It is therefore easily authenticated by occasional heating of the paper. The reaction is spontaneously reversible in a few minutes. In addition, the paper reacts strongly to bisulfite in orange.
EXEMPLE 8
Sur un support plastique en polyéthylène à haute densité est couchée par une technique papetière classique (lame trainante, lame d'air...) la sauce de couchage comprenant par litre de liquide : - 400 g de charges dispersées (kaolin, talc, carbonate) - 200 g de latex - 30 g de chlorure de cobalt hydraté.EXAMPLE 8
On a plastic support in high density polyethylene is coated by a conventional papermaking technique (drag blade, air knife ...) the coating sauce comprising per liter of liquid: - 400 g of dispersed fillers (kaolin, talc, carbonate ) - 200 g of latex - 30 g of hydrated cobalt chloride.
Le plastique couché est blanc avec une légère teinte bleutée. A la chaleur, une coloration bleue très nette est visible. The coated plastic is white with a slight bluish tint. In the heat, a very clear blue coloration is visible.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR909015510A FR2654446B1 (en) | 1987-09-03 | 1990-12-11 | MEANS, PAPER AND SECURITY DOCUMENT AGAINST CHEMICAL FALSIFICATION AND COUNTERFEITING. |
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 |
| FR909015510A FR2654446B1 (en) | 1987-09-03 | 1990-12-11 | MEANS, PAPER AND SECURITY DOCUMENT AGAINST CHEMICAL FALSIFICATION AND COUNTERFEITING. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2654446A1 true FR2654446A1 (en) | 1991-05-17 |
| FR2654446B1 FR2654446B1 (en) | 1992-10-16 |
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 (2)
| 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 |
Country Status (9)
| Country | Link |
|---|---|
| BE (2) | BE1011816A4 (en) |
| CH (2) | CH677241A5 (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) |
Families Citing this family (6)
| 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 |
| GB2274428B (en) * | 1993-01-20 | 1996-08-21 | Portals | Security threads |
| 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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| FR1509715A (en) * | 1966-02-04 | 1968-01-12 | Inveresk Paper Company Ltd | Security paper |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE115445C (en) * | ||||
| 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 |
| 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 |
| 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 |
| 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 |
| AT362658B (en) * | 1978-03-15 | 1981-06-10 | Oesterr Nationalbank | PAPER, METHOD FOR TESTING PAPERS AND DEVICE FOR CARRYING OUT THE TEST METHOD |
| JPS5787396A (en) * | 1980-11-18 | 1982-05-31 | Sadao Nishi | Chemical agent for marking paper money |
| 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 BE BE8800982A patent/BE1011816A4/en not_active IP Right Cessation
- 1988-08-30 IT IT8821782A patent/IT1226420B/en active
- 1988-09-02 CH CH3291/88A patent/CH677241A5/fr not_active IP Right Cessation
- 1988-09-02 NL NL8802167A patent/NL191211C/en not_active IP Right Cessation
- 1988-09-02 DK DK487888A patent/DK487888A/en not_active Application Discontinuation
- 1988-09-02 CH CH498/91A patent/CH679411A5/fr not_active IP Right Cessation
- 1988-09-02 GB GB8820751A patent/GB2209304B/en not_active Expired - Fee Related
- 1988-09-02 ES ES8802711A patent/ES2008020A6/en not_active Expired
-
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/DK28391D0/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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| FR1509715A (en) * | 1966-02-04 | 1968-01-12 | Inveresk Paper Company Ltd | Security paper |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2240511B (en) | 1992-05-13 |
| GB2240511A (en) | 1991-08-07 |
| DK487888A (en) | 1989-03-04 |
| FR2620146A1 (en) | 1989-03-10 |
| CH679411A5 (en) | 1992-02-14 |
| GB8820751D0 (en) | 1988-10-05 |
| DE3829002C3 (en) | 1997-09-04 |
| GB2209304A (en) | 1989-05-10 |
| DE3829002C2 (en) | 1995-01-05 |
| CH677241A5 (en) | 1991-04-30 |
| NL8802167A (en) | 1989-04-03 |
| NL191211B (en) | 1994-10-17 |
| DK28391A (en) | 1991-02-19 |
| GB9102451D0 (en) | 1991-03-20 |
| NL9100419A (en) | 1991-06-03 |
| FR2643661A1 (en) | 1990-08-31 |
| FR2620146B1 (en) | 1991-10-04 |
| IT8821782A0 (en) | 1988-08-30 |
| FR2654446B1 (en) | 1992-10-16 |
| DK28391D0 (en) | 1991-02-19 |
| FR2643661B1 (en) | 1991-05-10 |
| IT1226420B (en) | 1991-01-15 |
| DE3829002A1 (en) | 1989-03-16 |
| BE1011816A4 (en) | 2000-02-01 |
| GB2209304B (en) | 1992-05-13 |
| ES2008020A6 (en) | 1989-07-01 |
| DK487888D0 (en) | 1988-09-02 |
| BE1011817A4 (en) | 2000-02-01 |
| NL191211C (en) | 1995-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CD | Change of name or company name | ||
| TP | Transmission of property | ||
| CD | Change of name or company name | ||
| ST | Notification of lapse |