EP1809846A1 - Verfahren zur herstellung von sicheren wertvollen dokumenten - Google Patents
Verfahren zur herstellung von sicheren wertvollen dokumentenInfo
- Publication number
- EP1809846A1 EP1809846A1 EP05809299A EP05809299A EP1809846A1 EP 1809846 A1 EP1809846 A1 EP 1809846A1 EP 05809299 A EP05809299 A EP 05809299A EP 05809299 A EP05809299 A EP 05809299A EP 1809846 A1 EP1809846 A1 EP 1809846A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- active substance
- securing
- radicals
- group
- valuable documents
- 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
Links
- 238000000034 method Methods 0.000 title claims abstract description 44
- 239000013543 active substance Substances 0.000 claims abstract description 56
- 230000005855 radiation Effects 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 15
- 238000007385 chemical modification Methods 0.000 claims abstract description 12
- 230000002427 irreversible effect Effects 0.000 claims abstract description 7
- 230000008859 change Effects 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 3
- -1 alkyl radicals Chemical class 0.000 claims description 34
- 230000008569 process Effects 0.000 claims description 16
- 230000001939 inductive effect Effects 0.000 claims description 13
- 125000003118 aryl group Chemical group 0.000 claims description 10
- 150000005840 aryl radicals Chemical class 0.000 claims description 9
- 125000001072 heteroaryl group Chemical group 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 7
- 239000007795 chemical reaction product Substances 0.000 claims description 7
- 125000005428 anthryl group Chemical group [H]C1=C([H])C([H])=C2C([H])=C3C(*)=C([H])C([H])=C([H])C3=C([H])C2=C1[H] 0.000 claims description 6
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims description 6
- 150000002367 halogens Chemical class 0.000 claims description 6
- 125000002950 monocyclic group Chemical group 0.000 claims description 6
- 239000002966 varnish Substances 0.000 claims description 6
- 125000004429 atom Chemical group 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 239000011203 carbon fibre reinforced carbon Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 125000001624 naphthyl group Chemical group 0.000 claims description 4
- 150000004291 polyenes Chemical class 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 3
- HGCIXCUEYOPUTN-UHFFFAOYSA-N cis-cyclohexene Natural products C1CCC=CC1 HGCIXCUEYOPUTN-UHFFFAOYSA-N 0.000 claims description 3
- LPIQUOYDBNQMRZ-UHFFFAOYSA-N cyclopentene Chemical compound C1CC=CC1 LPIQUOYDBNQMRZ-UHFFFAOYSA-N 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 238000002411 thermogravimetry Methods 0.000 claims description 3
- RVBUGGBMJDPOST-UHFFFAOYSA-N 2-thiobarbituric acid Chemical compound O=C1CC(=O)NC(=S)N1 RVBUGGBMJDPOST-UHFFFAOYSA-N 0.000 claims description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 claims description 2
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims description 2
- HNYOPLTXPVRDBG-UHFFFAOYSA-N barbituric acid Chemical compound O=C1CC(=O)NC(=O)N1 HNYOPLTXPVRDBG-UHFFFAOYSA-N 0.000 claims description 2
- 229910052794 bromium Inorganic materials 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- 229910052801 chlorine Inorganic materials 0.000 claims description 2
- 239000000460 chlorine Substances 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- CFBGXYDUODCMNS-UHFFFAOYSA-N cyclobutene Chemical compound C1CC=C1 CFBGXYDUODCMNS-UHFFFAOYSA-N 0.000 claims description 2
- 125000001995 cyclobutyl group Chemical group [H]C1([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 2
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 2
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 2
- 125000001559 cyclopropyl group Chemical group [H]C1([H])C([H])([H])C1([H])* 0.000 claims description 2
- 150000002148 esters Chemical class 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 125000002541 furyl group Chemical group 0.000 claims description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 229910052740 iodine Inorganic materials 0.000 claims description 2
- 150000002825 nitriles Chemical class 0.000 claims description 2
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 125000000168 pyrrolyl group Chemical group 0.000 claims description 2
- 150000003254 radicals Chemical class 0.000 claims description 2
- 125000001544 thienyl group Chemical group 0.000 claims description 2
- 125000005309 thioalkoxy group Chemical group 0.000 claims description 2
- 125000005190 thiohydroxy group Chemical group 0.000 claims description 2
- 125000005561 phenanthryl group Chemical group 0.000 claims 2
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims 1
- 125000001153 fluoro group Chemical group F* 0.000 claims 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 claims 1
- 239000011630 iodine Substances 0.000 claims 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims 1
- 238000009877 rendering Methods 0.000 abstract description 5
- 230000004048 modification Effects 0.000 description 7
- 238000012986 modification Methods 0.000 description 7
- 230000006866 deterioration Effects 0.000 description 5
- 239000004923 Acrylic lacquer Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000016571 aggressive behavior Effects 0.000 description 3
- UAOMVDZJSHZZME-UHFFFAOYSA-N diisopropylamine Chemical compound CC(C)NC(C)C UAOMVDZJSHZZME-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N tetrahydrofuran Substances C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NBPGPQJFYXNFKN-UHFFFAOYSA-N 4-methyl-2-(4-methylpyridin-2-yl)pyridine Chemical compound CC1=CC=NC(C=2N=CC=C(C)C=2)=C1 NBPGPQJFYXNFKN-UHFFFAOYSA-N 0.000 description 1
- 206010001488 Aggression Diseases 0.000 description 1
- ROFVEXUMMXZLPA-UHFFFAOYSA-N Bipyridyl Chemical group N1=CC=CC=C1C1=CC=CC=N1 ROFVEXUMMXZLPA-UHFFFAOYSA-N 0.000 description 1
- WYTGVZCTBJIDSJ-UHFFFAOYSA-N C(C)N(C1=CC=C(C=C1)C1=C(C(=NC=C1)C1=NC=CC(=C1)N(CC)CC)CCO)CC Chemical compound C(C)N(C1=CC=C(C=C1)C1=C(C(=NC=C1)C1=NC=CC(=C1)N(CC)CC)CCO)CC WYTGVZCTBJIDSJ-UHFFFAOYSA-N 0.000 description 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000021615 conjugation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004200 deflagration Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 229940043279 diisopropylamine Drugs 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012074 organic phase Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- WHRNULOCNSKMGB-UHFFFAOYSA-N tetrahydrofuran thf Chemical compound C1CCOC1.C1CCOC1 WHRNULOCNSKMGB-UHFFFAOYSA-N 0.000 description 1
- 125000005490 tosylate group Chemical group 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05G—SAFES OR STRONG-ROOMS FOR VALUABLES; BANK PROTECTION DEVICES; SAFETY TRANSACTION PARTITIONS
- E05G1/00—Safes or strong-rooms for valuables
- E05G1/14—Safes or strong-rooms for valuables with means for masking or destroying the valuables, e.g. in case of theft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/48—Elements suited for physical verification, e.g. by irradiation
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/10—Microwaves
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/1205—Testing spectral properties
Definitions
- the present invention relates to a method for securing valuable documents, in particular banknotes, and more particularly to a method for securing valuable documents contained in a security protection or transport enclosure.
- the trajectory of the projected products being relatively random, the marking or the deterioration of the valuable documents can prove to be insufficient and not homogeneous on the whole of the document (s). This occurs especially in the case of bank notes bundled together, for which only the edges of the notes are exposed. By cutting the edges of stained or damaged notes, it is therefore possible to safely recover almost all the tickets stored inside the container.
- a solution proposed by AXYTRANS consists in triggering a pyrotechnic charge housed in the lid of the secure container, the deflagration of said charge causing both the opening of liquid tanks marker or destroyer placed inside the container and the partial or total cutting of all valuable documents.
- this solution leads to a deterioration or a deep marking of the banknotes, the result is still insufficient both in terms of the proportion of notes physically reached by the liquid, as the level of the regularity of said deteriorations or said markings. .
- this solution does not control the intensity, shape and positioning of said deteriorations or said markings.
- This heterogeneity in the physical modification undergone by each of the notes leaves a doubt as to the origin of said modifications and, as a result, does not make it possible to reliably identify a stolen ticket of a non-stolen ticket.
- One of the aims of the invention is therefore to propose a new method for securing valuable documents that does not have the drawbacks of the above-mentioned prior art and, in particular, a method of securing valuable documents enabling them to be completed. in a simple and fast way, while being without risk for the potential users, with an irreversible physical modification of the documents of value, rendering said documents unusable or legally identifiable, said modification being able to be carried out in a complete, homogeneous and controlled way on the set of valuable documents.
- a method for securing valuable documents comprising the steps of integrating into each document, during its manufacture, at least one active substance irreversibly changing color under the direct effect of revealing means, said color change rendering said documents unusable or legally identifiable, the developer means consisting of external microwave radiation; said method being remarkable in that the external microwave radiation induces an irreversible chemical modification of the active substance by the creation of an extended ⁇ -conjugate system signifying the transition from an unconjugated initial form to a conjugated final form.
- the chemical modification of the active substance comprises the creation of at least one monoatomic or heteroatomic multiple bond.
- the chemical modification of the active substance comprises the creation of at least one carbon-carbon double bond.
- the chemical modification of the active substance comprises the creation of at least one carbon-carbon triple bond. According to another variant of the invention, the chemical modification of the active substance is accompanied by the irreversible release of at least one reaction product.
- the active substance consists of at least one molecule comprising at least one mesomeric and / or inductive electron-donor group and at least one mesomeric effect-accepting electron group. and / or inductive, said electron donor and acceptor moieties being connected between them by an intermediate group of atoms capable of irreversibly releasing, under the effect of the external microwave radiation, said reaction product, so as to create an extended ⁇ -conjugate system.
- the interlayable atom group has a chemical formula of the type:
- the integration of the active substance with valuable documents is carried out by incorporating said active substance into at least one of the constituent elements of said valuable documents.
- the active substance is incorporated in the basic support of valuable documents, said support being able to be made of paper or plastic.
- the active substance is incorporated into an ink printed on said valuable documents.
- the active substance is incorporated in a varnish covering said valuable documents.
- the active substance used during the active securing process has a general formula of the type:
- D is an electron donor group by mesomeric and / or inductive effect
- A is an electron acceptor group by mesomeric and / or inductive effect
- X and Y are two groups capable of being eliminated in the form of an XY molecule under the effect of external microwave radiation; n is an integer.
- Such molecules must pass rapidly and irreversibly from an unconjugated form, preferably colorless or weakly colored, to a conjugate form, preferably strongly colored, under the effect of external microwave radiation.
- the group D is chosen from a polyene, an aromatic group, a heteroaromatic group, which may or may not be substituted by heteroatomic groups, or a heteroatomic group.
- the one or more heteroatomic groups are selected from NH2, NR1R2, OH, 0 ", ENT, SH, S", SRI, wherein Rl and R2 are alkyl, cycloalkyl or aryl, identical or different.
- the cycloalkyl radicals are chosen from saturated monocyclic cycloalkyl radicals, such as the cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl or cycloheptyl radicals, or from the unsaturated monocyclic cycloalkyl radicals, such as the cyclobutene and cyclopentene radicals. , cyclohexene.
- the aromatic group is chosen from aryl radicals monocyclic or polycyclic, such as phenyl radicals substituted or unsubstituted by one or more alkyl radicals, naphthyl, anthryl or phenanthryl radicals.
- the heteroaromatic group is chosen from the thienyl, pyrrolyl, furanyl and azathienyl radical, which may or may not be substituted by one or more alkyl radicals.
- the group A is chosen from an ester, an aldehyde, a nitrile, a nitro, a halogen, a carboxylic acid, barbituric acid, thiobarbituric acid, a polyene, an aromatic group , a substituted heteroaromatic group or not.
- the aromatic group is chosen from monocyclic or polycyclic radicals, such as phenyl radicals substituted or unsubstituted by one or more alkyl radicals, naphthyl, anthryl or phenanthryl radicals.
- the heteroaromatic group is chosen from the radical pyridyl, bipyridyl, phenanthrolyl, terpyridinyl or quinolynyl, substituted or not by one or more alkyl or aryl radicals.
- the aryl radicals are chosen from monocyclic or polycyclic aryl radicals, such as phenyl radicals which may or may not be substituted by one or more alkyl radicals, naphthyl, anthryl or phenanthryl radicals.
- the X and Y groups are chosen from a hydrogen atom, a halogen, a hydroxyl, thiohydroxy, amino, alkoxy, thioalkoxy, mesylate or tosylate group.
- the halogen is chosen from the fluorine, chlorine, bromine or iodine atom.
- the alkyl radicals consist of a linear or branched chain of 1 to 8 carbon atoms, especially a linear chain of 2 to 4 carbon atoms.
- the active substance has the general formula (1):
- R1 and R2 are alkyl, cycloalkyl, aryl radicals, the same or different.
- the active substance has the general formula (2):
- R1 and R2 are alkyl, cycloalkyl, aryl radicals, the same or different, and M is a metal salt.
- R1 and R2 are chosen from ethyl or butyl radicals.
- the metal salt is chosen from ZnCl 2 or ReCO 3 Br.
- the active substance has the general formula (3):
- the active substance is thermally stable.
- the active substance has a decomposition rate of less than or equal to 5% by weight at 223 ° C., said rate being measured by thermogravimetric analysis.
- the invention also relates to the application of the security method as described above to banknotes.
- the invention also relates to a valuable document comprising at least one active substance as described above, said document constituting in particular a banknote.
- the active substance will be present in an overprint varnish deposited on the valuable documents to be secured, said substance being initially colorless or weakly colored and strongly staining during its exposure to. external microwave radiation.
- This coloration may in particular stem from the irreversible chemical modification of the molecules constituting said active substance, in particular from the creation of an extended ⁇ -conjugate system.
- the creation of an extended ⁇ -conjugate system has the effect of modifying the absorption spectrum of said molecules, and, in particular, to move the absorption band of said molecules in the visible range.
- the Applicant has also demonstrated the fundamental role played by the presence of donor and electron receptor group by mesomeric and / or inductive effect within the molecules constituting the active substance in the reaction mechanism leading to the creation of the ⁇ -system. conjugated during its exposure to external microwave radiation.
- these groups make it possible to improve the phenomenon of electronic delocalization and, therefore, promote the conjugation reaction.
- an active substance is synthesized within the meaning of the invention, said active substance being formed from 4,4'-bisdiethylaminophenyl (hydroxyethyl) -2,2'-bipyridine molecules, having the general formula (3 ):
- an acrylic lacquer solution doped with 1.3% by weight of the active substance formed above is prepared by mixing, in 1 ml of tetrahydrofuran THF, 1.5 g of water-based acrylic lacquer having the reference 803 675 W in the PROTECT® range marketed by SICPA with 20 mg of said active substance.
- a third step strips 1 cm wide and 5 cm long were cut from a sheet of fiduciary paper formed from cotton fibers.
- the acrylic lacquer solution is deposited on each of the paper strips, by means of a system of threaded cylindrical bar applications allowing the deposition of a 12 micron or 24 micron varnish film. thickness.
- each of the strips coated with varnish is placed in the cylindrical cavity of a microwave oven marketed under the trademark Discover® by the American company CEM Corporation and protected in particular in the international patent application WO 02/062104. .
- This microwave oven comprises in particular a source of microwave radiation delivering a focused single-mode beam with a power of 300 W, the frequency of the produced beam being between 300 MHz and 30 GHz, and preferably being substantially equal to 2.45 GHz.
- the microwave oven also includes a waveguide communicating with the source, at least a portion of the waveguide describing a cylindrical arc, and a cylindrical cavity surrounded by the cylindrical portions of the waveguide, a plurality of apertures being formed on the walls of the waveguide so as to communicate the waveguide with the cylindrical cavity.
- the interest of this type of oven is to focus the microwave beams on a well-defined area of the cylindrical cavity, especially where the samples to be tested are positioned.
- the irradiation time of each paper strip varies between 1 s and 5 min, and in this preferred embodiment is set substantially at 30 s.
- FIG. 1 shows the reflection absorption spectrum respectively of the paper before exposure to microwave radiation (curve 1) and after exposure to microwave radiation (curve 2).
- the paper Before its irradiation, the paper had a relatively narrow absorption band of between about 200 and 300 nm, that is to say outside the visible range: the paper thus did not have any color.
- the paper After irradiation, the paper has a broad absorption band between about 370 and 650 nm, in particular centered around 430 nm: the paper thus appears colored.
- thermogravimetric analysis a decomposition rate of said molecule substantially equal to 5% is measured.
- weight at 223 0 C the molecule (3) is thermally stable.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Accounting & Taxation (AREA)
- Finance (AREA)
- Business, Economics & Management (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Saccharide Compounds (AREA)
- Compounds Of Unknown Constitution (AREA)
- Paper (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Communication Control (AREA)
- Peptides Or Proteins (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0411152A FR2876714B1 (fr) | 2004-10-20 | 2004-10-20 | Procede de securisation de documents de valeur |
PCT/FR2005/002594 WO2006042967A1 (fr) | 2004-10-20 | 2005-10-19 | Procede de securisation de documents de valeur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1809846A1 true EP1809846A1 (de) | 2007-07-25 |
EP1809846B1 EP1809846B1 (de) | 2008-02-20 |
Family
ID=34951181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05809299A Not-in-force EP1809846B1 (de) | 2004-10-20 | 2005-10-19 | Verfahren zur herstellung von sicheren wertvollen dokumenten |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1809846B1 (de) |
AT (1) | ATE386867T1 (de) |
DE (1) | DE602005004937T2 (de) |
FR (1) | FR2876714B1 (de) |
WO (1) | WO2006042967A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0711575D0 (en) * | 2007-06-15 | 2007-07-25 | Complicity Ltd | Cash/valuable degradation system |
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FR2951300B1 (fr) | 2009-10-08 | 2011-12-09 | Oberthur Technologies | Systeme de securisation d'un |
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DE19838893C2 (de) * | 1998-08-27 | 2000-09-28 | Mitsubishi Hitec Paper Flensbu | Wärmeempfindlicher Aufzeichnungsbogen |
FR2791922B1 (fr) * | 1999-04-08 | 2001-06-22 | Axytrans | Procede de marquage de documents de valeur |
US6753517B2 (en) * | 2001-01-31 | 2004-06-22 | Cem Corporation | Microwave-assisted chemical synthesis instrument with fixed tuning |
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ATE386867T1 (de) | 2008-03-15 |
FR2876714A1 (fr) | 2006-04-21 |
DE602005004937T2 (de) | 2009-01-29 |
DE602005004937D1 (de) | 2008-04-03 |
WO2006042967A1 (fr) | 2006-04-27 |
FR2876714B1 (fr) | 2008-05-02 |
EP1809846B1 (de) | 2008-02-20 |
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