CN100522648C - Security document - Google Patents
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- CN100522648C CN100522648C CNB2005800222947A CN200580022294A CN100522648C CN 100522648 C CN100522648 C CN 100522648C CN B2005800222947 A CNB2005800222947 A CN B2005800222947A CN 200580022294 A CN200580022294 A CN 200580022294A CN 100522648 C CN100522648 C CN 100522648C
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- coating
- value document
- cheque paper
- mark
- laser
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Abstract
The invention relates to a security document, such as a bank note (1), passport or similar, which comprises a security sheet (4) and a marking (2) that has been created by a laser. According to the invention, at least one sub-section of the security sheet (4) has a coating (3) and the marking (2) extends over the border region between the coating (3) and the security sheet (4). The invention also relates to a security sheet (4) and to a method for producing an inventive security document or security sheet (4).
Description
Technical field
The present invention relates to a kind of value document such as banknote, identity card, passport etc., the mark that it has cheque paper and produces by laser, cheque paper has coating at least one regional area.In addition, the method that the present invention relates to a kind of cheque paper and be used to produce value document of the present invention and cheque paper.
Background technology
Especially banknote made of paper, check, travel tickets, admission ticket and other value document have security element for false proof purpose, can check the authenticity of value document by this security element.
For this reason, proposed by laser irradiation and mark has been applied to file, thereby in this document, realized irreversible and visually be easy to detected variation.For example, propose among DE 28 36 529 C2, in printing ink layer, burn sequence number by means of the laser beam of suitably being controlled.In EP 0 9186 49B1, propose, reduce file thickness in the another location of file by the part by means of laser-induced thermal etching and repeat identification code.In above-mentioned two examples, remove material by the laser irradiation.
On the contrary, other method only makes the base material blackening by the laser irradiation.In order very easily to be recognized and the mark of sharp-edged, it is also known that, in paper, mix absorbent and carbon and form agent, for example little grinding plastics (DE 197 32 860 A1).
DE 198 22 605 A1 have taked diverse ways.Wherein propose, at first use the substrate surface of laser energy treatment paper, thereby structurally change this surface, make described surface have opaque coating then, for example by printing, japanning and/or spray metal.Formerly change the surperficial discernible variation that in after-applied coating, produces color depth, color position, gloss and/or reflection that makes, thereby produce visual security element.
Summary of the invention
Problem of the present invention is to propose a kind of value document and cheque paper with improved visual security element of high anti-counterfeiting performance, and the method that is used to produce this security element.
The value document and the cheque paper of the feature of this problem by having independent claims are solved.The method that is used for producing these features is addressed in claim arranged side by side.The theme of dependent claims is improvement of the present invention.
Value document of the present invention, for example banknote, passport etc., the mark that has cheque paper and produce by laser, cheque paper has coating at least one regional area, and the fringe region that mark is crossed between coating and the cheque paper extends.Because laser applies above value document with the form of mark continuously, and the laser irradiation is different to the influence of coating and paper substrates, and therefore being marked at different zones demonstrates different outward appearances, and these different outward appearances directly merge mutually.Therefore the transition position that is marked at fringe region between coating and the cheque paper has correct registration, thereby the anti-forgery security that the feasible resistance that obtains by described mark is duplicated is high.
According to preferred embodiment, coating has at least one metal level, for example aluminium, gold, silver etc.The effect of laser irradiation is to remove metal level, makes the part mark that is arranged in metal level appear at metal level with the form in gap.Owing to apply laser beam continuously above the fringe region between coating and the cheque paper, so the negative image of mark (negative representation) seamlessly enters in the positive image (positive representation) in the cheque paper zone.
This is because laser action causes color change or the change color of cheque paper in marked region.The type of change color and the depth depend on the component of used cheque paper.Described color change or change color can be by being included in suitable additives in the cheque paper body, coating or priming subsequently strengthens.The type of additive therefor depends on the type of used laser or used optical maser wavelength.Can use the additive that absorbs the laser irradiation, for example carbon black, thermo-color material or titanium dioxide.
The part mark that is positioned at cheque paper of the present invention also can be the design by tactilely-perceptible, for example described in WO 204/009371.
Metal level of the present invention can be printed layers or gas deposition or the sputtering layer that comprises metallochrome or metal effect colouring agent.
Under latter event, metal level preferably prepares on independent carrier and is applied to cheque paper or value document with the form of label or transferring member.This label or transferring member also can have any other layer, for example the diffraction structure enamelled coating that impresses out with the relief printing plate form.Metal level generally is used as the reflecting layer of diffraction structure.
According to another embodiment, coating can form laser induced recording layer, so it has the component of at least one laser that can absorb selected wavelength irradiation.Suitable laser induced recording layer for example is an ink mixture, and this ink mixture has the component of mixture and the component of mixture that can see through the laser irradiation that can absorb the laser irradiation.Being marked at is visually discernible here, and this is because the effect of laser irradiation makes the optical property of ink mixture that irreversible variation take place.For example, can under the effect of laser irradiation, make and to absorb component of mixture and fade, evaporate, change its reflectivity properties or convert it into the different material of optical property by chemical reaction.
Preferably, ink mixture comprises the component of mixture that liquid crystal colouring agent variable on the colouring agent variable on the optics, particularly optics can be used for seeing through the laser irradiation, and for example on the optics variable interfering layer colouring agent can be used for absorbing component of mixture.
This coating demonstrates the interaction of color when changing at the visual angle, thereby the color effects that perceives is the stack of the color effects of colouring agent variable on the various optics.Laser action disappears the color effects of interfering layer colouring agent or changes, thus laser irradiation area territory and formation contrast on every side.Yet the laser irradiation area territory still demonstrates effect variable on the optics.If the fringe region that the mark of laser irradiation is crossed between coating and the cheque paper extends, then the optically-variable of mark partly changes in the non-optical variable part that produces by laser irradiation paper substrates.This has formed following effect: mark produces with diverse ways with accurate registration.
If the irradiation of the Tou Guoed laser of mixture is stacked on top of each other with the layer that separates with the part that can absorb the laser irradiation, then can produce the extremely similar in appearance of mark.
In order to make mark, preferably use the Nd:YAG laser of wavelength as 1064nm.The type that depends on the mark that will make, laser can adopt the pattern or the pulse mode of continuous wave.For example, when pulse mode, can in the whole labeling process of cheque paper, be created in the visible change on the blackening degree.
Laser labelling can be used to represent alphanumeric character, for example sequence number of value document or any code, for example bar code of one dimension or bidimensional or blind coding, any symbol, figure, pattern, picture or miniature literal (microwriting).Any desired alphanumeric character, for example date, time, lot number or lettering also are fine.The edge that each mark of the present invention all extends coating enters cheque paper, makes the outward appearance of mark change with correct registration at transition position.
Value document of the present invention can also have security element, variable Security element, the false proof marking on anti-counterfeiting line, the optics for example, for example intaglio printing, perhaps machine-readable security element, for example luminous or magnetisable material.If value document has anti-counterfeiting line, then laser labelling of the present invention can also be set in the zone of anti-counterfeiting line.Value document of the present invention can also be used to protect the product of any kind.
Value document of the present invention is that main composition is any file of cheque paper, for example banknote, check, visa, label, pages of passports, perhaps another file to be protected of being made by cheque paper.
The step of laser data plate was carried out in any production phase of value document.Therefore advantageously, after producing, on cheque paper, provide corresponding mark with roll form.This particularly under these circumstances, that is, when cheque paper provided with the annular form that has the metal forming coating, for example, diffraction is the Security element of band shape for example effectively, and described Security element will have mark of the present invention, as mentioned above.
Yet the step of laser labelling is preferably carried out as last procedure in the value document production process.If value document is for example with many copies (multiple-copy sheets) form printing, then laser labelling can be beaten on the paper or beat finishing on the value document under cutting.The latter is particularly more favourable when laser labelling is used to generate single information (for example, sequence number).
Special advantage of the present invention and anti-spurious correlation is that described effect can not be copied by simple device.The use of laser needs with high investment and than the know-how of using the high a lot profundity of the required know-how of common printing machine or digital printed device.
Another advantage of the present invention is that laser labelling can carry out under discontiguous condition with the speed of printing equipment routine.Especially, each file can come separate marking as Security element by for example sequence number or other individual component being incorporated in the value document.
Description of drawings
Below with reference to following example and description of drawings advantage of the present invention.Below described independent feature and embodiment itself be creationary, but also can combine.These examples have constituted preferred embodiment, but the present invention never is limited to this.Ratio shown in the accompanying drawing not with in esse relationship consistency, and mainly be to be used to promote clearness.
Fig. 1 illustrates value document of the present invention,
Fig. 2 illustrates the detailed enlarged drawing of regional A,
Fig. 3 illustrates along the cross section of B-B line by value document of the present invention,
Fig. 4 illustrates along the cross section of C-C line by value document of the present invention,
Fig. 5 illustrates along the cross section of D-D line by value document of the present invention,
But Fig. 6 illustrates the choice structure of coating,
Fig. 7 illustrates another exemplary coatings.
The specific embodiment
Fig. 1 illustrates the value document of the present invention 1 of banknote form.Value document 1 according to the present invention has the mark 2 of numeric string form, and its effect by laser beam produces and extends in the fringe region of banknote 1.
Fig. 2 illustrates the detailed enlarged drawing of the regional A of Fig. 1.This enlarged drawing clearly demonstrate of the present invention shown in " 4 " in the necessary transition of crossing the mark 2 of fringe region between coating 3 and the cheque paper 4.Mark 2 seamlessly and to have skew ground not continuous in the edge in two zones 3,4.Owing to be marked at the darker gray scale in cheque paper 4 zones, transition is high-visible and demonstrate correct registration, and this is that general typographic(al) mark institute is inaccessiable.
Fig. 3 illustrates along the cross section of B-B line by value document 1.In this case, the coating 3 of Security element 3 forms is arranged in the zone of mark 2, and Security element 3 is made of transferring member.Transferring member is attached to value document 1 by adhesive layer 5.Metal level 6 is positioned between adhesive layer 5 and the plastic layer 7 (particularly enamelled coating 7).
Fig. 4 illustrates along the cross section of C-C line by value document 1.Here as can be seen, there is not described metal level 6 in the zone of mark 2.Imprint with laser or the process of mark in, metal level 6 changes, and makes it no longer as seen.Reference numeral 8 expressions are exposed to the zone of laser irradiation.
Fig. 5 illustrates along the cross section of D-D line by value document 1.Can in cheque paper (substrate) 4 (it is to belong to mark and the part of discernible in top view " 8 "), see the change color 9 that causes by the laser data plate.In this example, " 8 " illustrate with the blackening degree corresponding to dark gray.Laser energy must be adjusted to the blackening degree of expectation.
Therefore the outward appearance or the expression mode edge region A of mark 2 change.In the zone of Security element 3, mark 2 illustrates with the form of metal level 6 intermediate gaps 8, and promptly as negative image, and mark 2 form with change color outside Security element 3 occurs, promptly as positive image.
Fig. 6 illustrates cheque paper (substrate) 20, and for example banknote or another value document apply coating 20 to it, and coating 20 comprises the ink mixture of two component of mixture 24 and 26.One of them component of mixture 24 can see through the infrared laser irradiation that is used for mark subsequently, and another component of mixture 26 absorbs the laser irradiation.In zone 28, mark layer 22 is suitably selected the mark laser irradiation of laser parameter, can absorb component of mixture 26 or make it inoperative with effect removal, the change that utilizes the laser irradiation.
Depend on employed material, for example can make to absorb component of mixture 26 and fade, evaporate, change its reflectivity properties or convert it into the different material of optical property by chemical reaction.In a word, irradiation has irreversibly changed the optical property of the ink mixture in the zone 28.Possible effect comprises change color, color change occurs, color brightens, change inclination color or the polarization characteristic of coating 22 or the localized variation of the characteristics of luminescence of the ink mixture of special-effect.
The change of the optical property of the ink mixture that laser causes causes visually discernible mark in the value document.These can be made of the form in the illuminated of mark layer itself and the zone 28 that changes, and perhaps only obtain by interacting with other printed layers that are configured to for example to comprise information.
For example, the printed layers that has information can be arranged between substrate 20 and the coating 22, and the variation of the optical property of coating 22 is, permeable regional area 28 appears in another impenetrable layer, make the information of after laser irradiation printed layers in described regional area as seen.
Another exemplary coating shown in Fig. 7.Substrate 30 is coated with coating 32, but coating 32 has ground floor 34 absorbed layers 36 of the laser irradiation that can see through selected wavelength and the second layer 38 that can see through the laser irradiation.But absorbed layer maybe can see through in the layer at least one comprise the visible colouring agent of vision.For example, can see through layer 34 can comprise and demonstrate the liquid crystal colouring matter that reflection colour changes according to the visual angle.
Laser irradiation makes that but absorbed layer 36 is removed at regional area 40, but places the Tou Guoed layer 38 on the absorbed layer 36 to be pulled away by ablation thus.Adopt for example infrared laser if ablate, the Nd:YAG laser of λ=1.064 μ m for example, it is can be in the visible range light tight and painted then can to see through the layer 34,38 of laser irradiation.The form and the shape that are removed zone 40 make coating 32 have various mark, and for example, the vision changeable colour effect of liquid crystal layer 34 shows outstanding especially than the second monochromatic peripheral region that can see through printed layers 38.
In all these examples, resulting from that part of base material around in the various coatings of mark is continuous with the form of change color and/or contrast.
Claims (17)
1. value document, the mark that has cheque paper and produce by laser, cheque paper has coating at least one regional area, and the fringe region that mark is crossed between coating and the cheque paper extends.
2. according to the value document of claim 1, it is characterized in that coating has at least one metal level.
3. according to the value document of claim 1 or 2, it is characterized in that mark appears in the coating area with the form in the gap in the metal level, this causes the change color of cheque paper at the cheque paper fringe region.
4. according to the value document of claim 1, it is characterized in that coating has at least one plastic layer and a metal level, described plastic layer has diffraction structure.
5. according to the value document of claim 1, it is characterized in that coating has ink mixture, this ink mixture has at least one component of mixture that can absorb the laser irradiation and the component of mixture that can see through the laser irradiation.
6. according to the value document of claim 1, it is characterized in that coating is the multilayer design, and at least one layer has mark.
7. according to the value document of claim 1, it is characterized in that coating has two stacked layers mutually, ground floor can see through the laser irradiation, and the second layer absorbs the laser irradiation.
8. according to the value document of claim 1, it is characterized in that coating has visually variable character.
9. according to the value document of claim 1, it is characterized in that coating comprises the liquid crystal colouring agent and/or comprises the interfering layer colouring agent.
10. according to the value document of claim 1, it is characterized in that mark occurs with the form of alphanumeric character, bar code, pattern, figure or miniature literal.
11. the value document according to claim 1 is characterized in that, a plurality of marking on the present value document.
12. a cheque paper that is used for value document has the mark that produces by laser, cheque paper has coating at least one regional area, and the fringe region that mark is crossed between coating and the cheque paper extends.
13. value document or cheque paper according to claim 1 or 12 is characterized in that, described value document or cheque paper are the multilayer designs.
14. method that is used for making mark at value document with cheque paper, cheque paper has coating at least one regional area, it is characterized in that, value document is exposed to the laser irradiation, laser beam is directed crossing the fringe region between coating and the cheque paper, and laser parameter is chosen to produce present coating area and cheque paper zone and crosses the mark that fringe region extends.
15. method of making mark at the cheque paper that is used for value document, wherein at least one regional area has coating, it is characterized in that, cheque paper is exposed to the laser irradiation, laser beam is directed crossing the fringe region between coating and the cheque paper, and laser parameter is chosen to produce present coating area and cheque paper zone and crosses the mark that fringe region extends.
16. the method according to claim 14 or 15 is characterized in that, uses Nd:YAG laser.
17. the method according to claim 14 or 15 is characterized in that, imprints under the speed that anti-counterfeit printing equipment is used always with laser.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004022081 | 2004-05-05 | ||
| DE102004022081.6 | 2004-05-05 | ||
| DE102004027306.5 | 2004-06-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1980800A CN1980800A (en) | 2007-06-13 |
| CN100522648C true CN100522648C (en) | 2009-08-05 |
Family
ID=38131528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800222947A Expired - Fee Related CN100522648C (en) | 2004-05-05 | 2005-05-02 | Security document |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100522648C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831530A (en) * | 2011-11-02 | 2012-12-19 | 冯林 | Two-dimensional graph coding anti-fake based method and tag and making method of two-dimensional graph coding anti-fake based tag |
| EP4052920A1 (en) * | 2021-03-01 | 2022-09-07 | Gleitsmann Security Inks GmbH | A method for continuously or semi-continuously numbering of banknotes using laser writing |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007036623A1 (en) * | 2007-07-03 | 2009-01-08 | Giesecke & Devrient Gmbh | Security feature and method for its manufacture |
| RU2674723C2 (en) * | 2009-10-14 | 2018-12-12 | Ксилеко, Инк. | Marking of paper products |
| FR2958209B1 (en) * | 2010-04-01 | 2012-07-20 | Oberthur Technologies | VALUE DOCUMENT, PROTECTEDLY MATT AND BRILLIANT PROTECTIVE LAYER |
| AU2011100778B4 (en) * | 2011-06-29 | 2011-10-13 | Ccl Secure Pty Ltd | Improvements in security devices incorporating colour shifting inks |
| CN106515260B (en) * | 2016-12-23 | 2018-09-25 | 工业和信息化部装备工业发展中心 | A kind of anti-copy file |
| CN114179549A (en) * | 2021-12-15 | 2022-03-15 | 公安部交通管理科学研究所 | Anti-fake certificate card with anti-fake mark and its making process |
-
2005
- 2005-05-02 CN CNB2005800222947A patent/CN100522648C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102831530A (en) * | 2011-11-02 | 2012-12-19 | 冯林 | Two-dimensional graph coding anti-fake based method and tag and making method of two-dimensional graph coding anti-fake based tag |
| CN102831530B (en) * | 2011-11-02 | 2016-01-06 | 深圳鑫华溢印务有限公司 | A kind of method based on X-Y scheme encode false-proof |
| EP4052920A1 (en) * | 2021-03-01 | 2022-09-07 | Gleitsmann Security Inks GmbH | A method for continuously or semi-continuously numbering of banknotes using laser writing |
| WO2022184466A1 (en) * | 2021-03-01 | 2022-09-09 | Gleitsmann Security Inks Gmbh | A method for numbering, qr coding and/or barcoding of banknotes using laser writing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1980800A (en) | 2007-06-13 |
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