WO2006064095A1 - Procede de fabrication de reperes sur un support et installation pour sa mise en oeuvre - Google Patents
Procede de fabrication de reperes sur un support et installation pour sa mise en oeuvre Download PDFInfo
- Publication number
- WO2006064095A1 WO2006064095A1 PCT/FR2004/050691 FR2004050691W WO2006064095A1 WO 2006064095 A1 WO2006064095 A1 WO 2006064095A1 FR 2004050691 W FR2004050691 W FR 2004050691W WO 2006064095 A1 WO2006064095 A1 WO 2006064095A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bath
- station
- support
- installation
- printing
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
Definitions
- the present invention relates to a method of manufacturing markers on a support and to an installation for its implementation. It relates more specifically to a method of manufacturing security markers as described in the patent application FR-2,780,914, said security markers being more particularly intended for the authentication of products, fiduciary papers, banknotes and banknotes. bank, stamps, etc.
- a plastic film can be used as a support with a metal coating.
- the base deposit may form a pattern, i.e., a background, constituting a hologram.
- a gravure printing cylinder with an image having engraved areas whose edges are surrounded by a net is used for printing to enable high-resolution printing without serration.
- the areas of the base deposit not covered by the passivation coating are removed so as to retain only those protected by said coating.
- the label medium is used as is or may be transferred to the surface or core of the material for securing and authenticating.
- the printing and physico-chemical treatment steps can be repeated a certain number of times depending on the layers to be produced.
- the operations performed at each layer can also be different and for each layer can be provided different shapes, dimensions and locations for the windows.
- the precision of the realization of the label makes it possible to increase the complexity of the shape, either of the outline, of the inclusions or reserves or else of the placement of the identification elements and above all it makes it possible to integrate in a very difficult way detectable identification elements.
- This precision makes it possible to camouflage more easily multiple identification elements, imperceptible in the usual analysis conditions, since they can not be imagined and are well within the limits of possible errors with other printing techniques.
- the document FR-2.780.914 also describes an installation for implementing the method referred to above which comprises a feeding station providing a strip provided with a base deposit, a printing station with a group of gravure printing to apply on the rotogravure windows support, followed at the output of an electrolysis station to carry out an electrolysis on the support, a washing installation for cleaning the surface of the support, a drying station, a station control and a winding station.
- the printing station of the installation can be equipped with printing tools to increase the print quality, including the resolution of windows, as described in WO-01/32422.
- the method described in document FR-2.780.914 is satisfactory and makes it possible to make security markings on a support from an industrial process.
- the subject of the invention is a method for producing markers comprising the steps of:
- the physico-chemical treatment makes it possible to remove the base deposit by precisely respecting the contours defined by the passivation coating, which contributes to improving the accuracy of the marks obtained and to maintaining it during manufacturing.
- FIG. 1 is an overall view of an installation for implementing the invention
- FIG. ZA is a schematic view illustrating in detail the printing station
- FIG. 2B is a schematic bottom view illustrating the printing station
- FIG. 3 is a schematic view illustrating in detail the physicochemical treatment station.
- a method of manufacturing marks on a support comprises the following steps: printing, with a passivation coating, a window on a support comprising a base deposit, generally a metal deposit,
- a plastic film can be used as a support with a metal coating.
- the base deposit may form a pattern, i.e., a background, constituting a hologram.
- the support and the basic repository are not limited to this embodiment.
- the support and / or the base deposit may vary both on the nature of the materials used and on their shapes or thicknesses.
- At least one intermediate layer may be provided between the support and the base deposit, in particular to allow detachment of the base deposit of the support.
- the basic deposit must allow a removal of material during a physicochemical treatment.
- the support and the basic deposit are not more detailed because they are known to those skilled in the art, in particular according to document FR-2.780.914.
- a gravure printing cylinder with an image having etched areas whose edges are surrounded by a net is used for printing to enable high-resolution printing without serration.
- the present invention is not limited to this type of printing.
- Other material deposition techniques for depositing the passivation coating with high resolution could be envisaged.
- the areas of the base deposit not covered by the passivation coating are called windows.
- the material used for the passivation coating may be a varnish intended to protect the base deposit so that the zones of the base deposit beneath the varnish are protected and are not removed during the coating. physicochemical treatment. Other materials could be considered.
- at least one intermediate layer may be provided between the base deposit and the passivation coating, in particular to allow separation of the passivation coating from the base deposit.
- the passivation coating is not more detailed because it is known to those skilled in the art, in particular from FR-2,780,914.
- the etching of the base deposit is preferably carried out by electrolysis between the base deposit and an anode.
- the anode is for example an insoluble anode made of titanium, bathed in an aqueous electrolysis called thereafter bath.
- the nature and shape of the electrodes and the nature of the bath are not more detailed because they are known to those skilled in the art, in particular from FR-2.780.914.
- the base deposit is removed from the film except at the places corresponding to the impression of the passivation coating.
- the passivation coating can be removed from the base deposit by solubilization. Finally, the support is washed and dried by any appropriate means.
- the printing and physicochemical processing steps can be repeated so as to obtain several layers. Transactions carried out The level of each layer may be different and for each layer provide different shapes, dimensions and locations for the windows.
- the label thus obtained may be attached to a product to be protected or be integrated therein. Alternatively, another support may be glued against the passivation coating so as to remove the lower layers such as the initial support and the base deposit.
- the quality of the bath is regulated during the physicochemical treatment.
- regulating the quality of the bath is meant maintaining certain parameters of the bath, including its pH, conductivity and / or temperature.
- the quality of the bath or its characteristics change during the process, in particular because of the impurities present in the bath and the variation of concentration of the bath components.
- the physicochemical treatment does not make it possible to remove the base deposit by precisely respecting the contours defined by the passivation coating. Consequently, the accuracy of the marks of the label obtained in the end may be well below the accuracy obtained during the deposition of the passivation coating.
- the physicochemical treatment makes it possible to remove the base deposit by precisely respecting the contours defined by the passivation coating, which contributes to improving the accuracy of the marks obtained and to maintain it during manufacture.
- a first solution is to filter the bath so as to remove any impurities. This filtration can be achieved by flowing the bath through a plate filter filtration system. According to the variants, the filtration of the bath can be continuous or sequential by triggering the filtration when the bath reaches a certain threshold of fouling.
- a second solution consists in maintaining the concentration level of the bath components. To do this, at least one characteristic of the bath is measured, in particular its pH and / or its conductivity, and at least one component and / or a concentrate of several components is added to said bath as a function of the variation of said at least one characteristic. in order to maintain the latter substantially constant.
- the bath is an aqueous solution composed of a salt with its base or its associated acid such as NaOH and NaCl in a concentration of between 5 and 150 g / l, preferably 100 g / l.
- the pH and / or the conductivity of the bath are measured and a concentrate of the components is added to the bath so as to maintain the concentration, preferably substantially equal to 100 g / l.
- FIG. 1 there is shown an installation for carrying out the method described above.
- This installation comprises a feed station A which receives the support or film provided with its base deposit BAl, wound on a reel.
- the reel is unwound to feed a printing station by rotogravure B B.
- the band BA2 goes into a physico-chemical treatment station C to develop the windows.
- the band BA3 runs through a washing station D at which the passivation coating is removed.
- the band BA3 is washed at the washing station D. Following, the band is dried at a drying station E, then through a control station F to finally arrive on the winder G.
- the positions A, D, E, F and S can be identical to the positions A, D, E, F and G of the document FR-2.780.914.
- the print station B is schematically represented. It comprises a printing unit with an ink fountain 10, a gravure cylinder 12 dipping into the inkwell 10 to cover a surface 14 provided with at least one rotogravure cell 16.
- This cylinder 12 cooperates with a scraper 18 to remove the ink surface and leave only the ink inside the cells 16.
- the ink management means are not described because they are known to the skilled in the art, particularly from FR-2.780.914.
- the cylinder 12 cooperates with a pressing roll 20 placed above the tape BAl.
- the band BA1 is composed as an example of a support 22, in particular a plastic film, and a base deposit 24, in particular a metal coating.
- the cells 16 of the cylinder comprise a net so as to ensure a high resolution printing of the passivation coating 26, without serration, visible on the band BA2.
- the printing station B is not more described because it is known to those skilled in the art, in particular from document FR-2.780.914.
- the physicochemical treatment station C comprises an electrolysis tank 28 which is licked by the band BA2. At the exit of the station, the areas of the base deposit not protected by the passivation coating 26 are removed so as to obtain the band BA3.
- This station C also includes a hood 30 for extracting the electrolysis gases.
- the characteristics and the nature of the bath, the nature and the shapes of the electrodes are chosen by those skilled in the art, in particular according to the nature of the metal to be removed.
- the physicochemical treatment station C includes a collection hopper 32 for collecting the liquid dripping from the drained strip BA3 through its passage between two cylinders 34 and 36. The spin liquid is collected in the collection hopper 32 to be then directed into a tank 38.
- the station C physicochemical treatment comprises means for regulating the quality of the bath. These regulation means comprise filtration means 40 and / or compensation means 42 for maintaining the concentration of the bath.
- the station comprises a recirculation circuit 44 comprising a pump 46 ensuring the flow of the bath fluid through the filtering means 40 in the form of a plate filter.
- the filtration can be continuous, the pump 46 operating continuously.
- the filtration is sequential, the pump 46 being put into operation when the bath reaches a fouling threshold.
- the liquid collected in the tank 38 is filtered before being introduced into the bath.
- the compensation means 42 comprise a concentrate tank 48, means 50 for measuring at least one characteristic of the bath, in particular pH and / or conductivity, and means 52 for injecting a quantity of concentrated according to the measurements taken by the means 50.
- the measurement means 50 comprise a pH measurement system in the form of a and the injection means 52 comprise a metering pump 54 controlled by a controller 56 capable of analyzing the measurements of the means 50 and of determining the quantity of concentrate to be added.
- the physicochemical treatment station C comprises means 58 for maintaining the temperature of the bath substantially constant.
- the invention is obviously not limited to the embodiment shown and described above, but covers all variants, particularly with regard to the number of printing station and physico-chemical treatment , the nature of the base deposit and the passivation coating, the shape and dimensions of the marks obtained.
- the method allows the production of labels comprising at least one security mark more particularly adapted to banknotes, fiduciary papers, stamps, etc.
- the method and the installation described can also be used in other areas such as for example the production of printed circuits, the realization of packaging etc.
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- Printing Plates And Materials Therefor (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2004/050691 WO2006064095A1 (fr) | 2004-12-14 | 2004-12-14 | Procede de fabrication de reperes sur un support et installation pour sa mise en oeuvre |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/FR2004/050691 WO2006064095A1 (fr) | 2004-12-14 | 2004-12-14 | Procede de fabrication de reperes sur un support et installation pour sa mise en oeuvre |
Publications (1)
Publication Number | Publication Date |
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WO2006064095A1 true WO2006064095A1 (fr) | 2006-06-22 |
Family
ID=34960678
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2004/050691 WO2006064095A1 (fr) | 2004-12-14 | 2004-12-14 | Procede de fabrication de reperes sur un support et installation pour sa mise en oeuvre |
Country Status (1)
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WO (1) | WO2006064095A1 (fr) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4420515A (en) * | 1981-08-21 | 1983-12-13 | Sicpa Holding, S.A. | Metallization process for protecting documents of value |
EP0531605A1 (fr) * | 1991-09-11 | 1993-03-17 | Nhk Spring Co.Ltd. | Plaque d'identification optique transparent |
US5248544A (en) * | 1990-02-01 | 1993-09-28 | Gao Gesellschaft Fur Automation Und Organisation Mbh | Paper of value having an optically variable security element |
FR2780914A1 (fr) | 1998-07-10 | 2000-01-14 | Breger Emballages Sa | Procede de fabrication d'etiquettes |
WO2001032422A1 (fr) | 1999-10-29 | 2001-05-10 | Cabinet Erman Sarl | Outillage d'impression |
-
2004
- 2004-12-14 WO PCT/FR2004/050691 patent/WO2006064095A1/fr not_active Application Discontinuation
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4420515A (en) * | 1981-08-21 | 1983-12-13 | Sicpa Holding, S.A. | Metallization process for protecting documents of value |
US5248544A (en) * | 1990-02-01 | 1993-09-28 | Gao Gesellschaft Fur Automation Und Organisation Mbh | Paper of value having an optically variable security element |
EP0531605A1 (fr) * | 1991-09-11 | 1993-03-17 | Nhk Spring Co.Ltd. | Plaque d'identification optique transparent |
FR2780914A1 (fr) | 1998-07-10 | 2000-01-14 | Breger Emballages Sa | Procede de fabrication d'etiquettes |
WO2001032422A1 (fr) | 1999-10-29 | 2001-05-10 | Cabinet Erman Sarl | Outillage d'impression |
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