CN105209688A - Value and security document having a watermark and a security thread - Google Patents
Value and security document having a watermark and a security thread Download PDFInfo
- Publication number
- CN105209688A CN105209688A CN201480026543.9A CN201480026543A CN105209688A CN 105209688 A CN105209688 A CN 105209688A CN 201480026543 A CN201480026543 A CN 201480026543A CN 105209688 A CN105209688 A CN 105209688A
- Authority
- CN
- China
- Prior art keywords
- watermark
- substrate
- counterfeiting line
- paper
- valency
- 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.)
- Pending
Links
Classifications
-
- 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
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/355—Security threads
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/44—Watermarking devices
-
- 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
- D21H21/42—Ribbons or strips
-
- 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
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/333—Watermarks
Abstract
The invention relates to a value and security paper consisting of a substrate made of paper and having at least one multi-level watermark. The watermark is formed by a modulation of the substrate thickness, the density of the substrate in the watermark remaining at least substantially equal. In addition, at least one security thread designed in the form of an endless element is embedded in the substrate. According to the invention, the at least one security thread is arranged at least in part in the region of the at least one watermark and due to the modulation of the substrate thickness in the watermark, is arranged, at least in part, close to or completely on the surface of the substrate.
Description
Technical field
The present invention relates to one and have valency and cheque paper, it is made up of paper substrates, and has at least one multistage watermark.This watermark is at this by being formed the modulation of substrate thickness, and the substrate density in watermark keeps at least almost equal.In addition, embed in substrate with at least one anti-counterfeiting line of ring-type element formal construction.
Background technology
Manufacture there is the paper of watermark time, people distinguish the two-stage watermark with obvious bright dark effect and have bright dark between the multistage watermark of detailed expression of soft transitions and pattern.Term " multistage " is interpreted as the difference with two-stage three plane watermark, and comprises all watermarks had more than two brightness degrees, especially also comprises the watermark with continuous bright dark transition.In order to manufacture multistage watermark, three-dimensional relief being introduced in the dewatering screen of paper machine, making the paper thickness of finished paper according to the change of this relief or modulation, and preferably can identify brighter and compared with the soft transition gradually between dark areas in transmitted light.
For this reason, such as known a kind of dewatering screen of paper for the manufacture of having multistage watermark from WO2008/071325A1.Dewatering screen has carrier sieve, and it has the multistage relief of the watermark form that will produce in a part of region, and multistage relief is formed by injection molding perforation watermark inserter.
Knownly from WO2004/050991 during the manufacture process of bank-note paper, anti-counterfeiting line to be introduced in bank-note paper in cylinder mould machine.So, anti-counterfeiting line is unclamped by driven coil, by the tensile force of monitoring anti-fake line, ensures mechanical tensioning constant during unclamping.After sheet material is formed, the corresponding reference signal of unclamping coil is carried by monitoring unit, but the distance that the coil drive mechanism that adversely, regulate and anti-counterfeiting line are fixed between position that distance between the position on cylinder and the monitoring after sheet material is formed and anti-counterfeiting line be fixed on cylinder is very large.This adjustment is reacted thus lentamente, is not enough accurate.
The known motion of synchronous anti-counterfeiting line and the motion of cylinder from the publication of the ResearchDisclosure database numbers 562009 on January 4th, 2011.For this reason, before production is begun, the relative position of each sheet material marked on cylinder is measured relative to reference mark.Reference mark can be the feature of such as magnetic characteristic or optical detection.After assembling cylinder, the position of reference mark is synchronous with rotary encoder, and rotary encoder is installed on the driving shaft in motor exit.Each sheet material subcarrier label assignments to rotary encoder position, makes the current location of each mark be known at any time by this permission.Because the diameter of cylinder and the diameter that flows into slit (flow-inslit) in addition can be different when each production, so distance between the sensor detecting some feature of anti-counterfeiting line before anti-counterfeiting line flows into spool and the anti-counterfeiting line position be fixed on cylinder are different.Therefore, when each start-up function, realize the synchronous of rotary encoder and anti-counterfeiting line by the monitoring unit removed on sieve extraly, monitoring unit detects the distance between sheet material mark with some feature of anti-counterfeiting line, and is transferred to control unit.Then, control unit is to pull-out unit output corresponding signal, and pull-out unit is pulled away from anti-counterfeiting line from coil.
Summary of the invention
Therefore, the present invention is based on research and development one class and have valency and security document to increase the object to the protection of forging further.
This object is realized by the feature of independent claims.Development example of the present invention is the theme of dependent claims.
According to the present invention, at least one anti-counterfeiting line is arranged in the region of at least one watermark at least in part, and due to the modulation to the substrate thickness in watermark, at least in part near or be arranged in the surface of substrate completely.
According to the present invention, the substrate density in watermark at least almost keeps equal.This means to produce by means of only to the modulation of substrate thickness the modulation of base clear degree via watermark.The felt-like fiber distance to each other of substrate neither increases thus and does not also reduce.Particularly preferably, watermark is multistage watermark as mentioned above or so-called high-resolution watermark (HRW) at this.
According to another favorable structure having valency and security document, propose at least one watermark table diagram case, at least one anti-counterfeiting line represents pattern.The pattern of at least one anti-counterfeiting line is configured to its pattern supplementing at least in part and/or continue and/or imitate at least one watermark at this.Such as, the pattern of watermark represents a part for a part for lettering, a digital part or image.The pattern of anti-counterfeiting line represents the remainder of lettering, numeral or image.If when processing in substrate, anti-counterfeiting line about watermark longitudinal registration ground, namely with watermark longitudinal registration insert, then can form complete lettering, whole number or complete image together by two patterns.If also can or advantageously about watermark horizontal registration ground or with the horizontal registration of watermark by anti-counterfeiting line basement, then this can realize extraly or replace longitudinal registration to realize.
According to the present invention, vertical or longitudinal side or longitudinal direction are defined as the protuberance of the direction of rotation being parallel to cylinder or the side at edge or direction.According to the present invention, cross side or horizontal direction be defined as aim on the surface of cylinder perpendicular to vertical or longitudinal side or vertically or the side of longitudinal direction or direction.
Particularly advantageously, by anti-counterfeiting line accuracy registration is applied to substrate, namely longitudinal direction and/or lateral registration ground apply, and create attracting overall design.The special advantage of this integrated design increases the protection to forging.The notice of beholder can be attracted to these by the attracting combination of individual component gradually.This generates another false proof grade, it forms the additional obstacles to adulterator.
In addition, particularly advantageously, anti-counterfeiting line by adhesive bonding in the substrate.So, anti-counterfeiting line is such as laminated in substrate.
According to another favorable structure having valency and security document, anti-counterfeiting line has diffraction structure and/or liquid crystal layer and/or membrane structure and/or fluorescent material and/or magnetic, conduction and/or metal level.
According to another favorable structure having valency and security document, according to the theme of patent application DE102012024014A1, pumping equipment removes paper fiber at least one position from the paper web being still in dampness.So, another opening with its registration can be produced in that side towards the side (due to watermark) anti-counterfeiting line being directed to substrate surface of substrate.In this case, except the opening in side, also can under incident light via accuracy registration be arranged on substrate opposite side opening viewing anti-counterfeiting line.
According to the band that the bar of ring-type element of the present invention or strip anti-counterfeiting line to be such as width be one or several millimeter or width are one or several centimetres, it applies on the surface of the substrate.Ring-type element is set to rail thing, be namely wrapped in the intimate endless belt on coil, and certainly, ring-type element is not annular and endless thus, but especially has the length in kilometer range.Ring-type element can identify usually from the following fact: it extends to relative edge from an edge of substrate.The example of this anti-counterfeiting line embeds the anti-counterfeiting line in Euro banknote.
The invention still further relates to a kind of for the manufacture of the method having valency and cheque paper according to the present invention, thus, anti-counterfeiting line registration ground is introduced in the paper pulp of cylinder mould machine, and make anti-counterfeiting line guide at least in part on protuberance and depression, protuberance and depression produce multistage watermark.The particularly preferred embodiment of this method is explained in the embodiment example of Fig. 2 below.
Particularly preferably, known from WO2008/071325A1, the dewatering screen of cylinder mould machine has carrier sieve, and it has the multistage relief of the watermark form that will produce in a part of region, and multistage relief is formed by injection molding perforation watermark inserter.
Substitute injection molding perforation watermark inserter or except injection molding perforation watermark inserter, the impression by carrier sieve realizes watermark, such as known from patent application DE102011116605 or DE102012018166.
Single-layer sheet or multilayer tablet cheque paper can be configured to according to substrate of the present invention.Multilayer tablet cheque paper comprises at least one synusia paper.Other layer also can be formed by paper, yet can be formed by other material, such as, be formed by plastic foil.Cheque paper is particularly preferably made up of cotton fiber, as they are such as banknote.
Preferably, substrate also can comprise the paper be made up of other natural fabric (on an equal basis preferably by synthetic fiber, that is, natural with the mixture of synthetic fiber or on an equal basis preferably by least one plastic foil).In addition preferably, substrate is made up of the combination of the different base of at least two interconnection, the different base one of these two interconnection is arranged in above another, such as so-called mixture, the combination of plastic foil-paper-plastic foil, that is, the substrate be made of paper covers by plastic foil on both sides or paper-plastic foil-paper covers, that is, the substrate that the substrate of being made up of plastic foil is all made of paper on both sides covers.
Such as in printed article DE10243653A9, set forth the information relevant with the weight of substrate used, its explanation is in this respect incorporated to the application completely.Printed article DE10243653A9 especially set forth ply of paper and usually has 50g/m
2to 100g/m
2weight, preferably 80g/m
2to 90g/m
2weight.Certainly, depend on application, each suitable weight can be adopted.
Use value document especially banknote, stock, bond, contract, receipt, check, the high-quality admission ticket of this kind of substrate or cheque paper, also can also be in other paper forging risk, such as passport and other identification document and card, such as debit card or credit card (card has at least one deck cheque paper), and product certification element, such as label, seal, packaging etc.
The appointment cheque paper simplified or value document comprise all above-mentioned materials, file and product certification device.
Particularly advantageously, be possible with the combination of other anti-counterfeiting characteristic of prior art, such as, in metallization LEAD element area, carry out accuracy registration by laser and corrode and hole cutting.
Should understand, without departing from the scope of the invention, above mentioned characteristic sum feature described below not only can described in combinationally use, but also can other to combinationally use, as long as it is contained by the protection domain of claim.
Accompanying drawing explanation
Advantage of the present invention is explained with reference to the following examples example and supplementary accompanying drawing.Embodiment example represents preferred embodiment, does not limit the present invention in any way.And the expression in accompanying drawing is obviously schematic, in order to understand better, surely not reflects actual state.Especially, the ratio in accompanying drawing does not correspond to the relation in fact existed, and only for promoting clearness.And, for the sake of clarity, below the embodiment that describes in embodiment example be reduced to essential core information.In reality is implemented, substantially more complicated pattern or image can be used.
Definitely, accompanying drawing illustrates:
Fig. 1 is according to substrate of the present invention, has multistage watermark and strip anti-counterfeiting line;
Fig. 2 is the cross section (illustrate with plane, instead of illustrate, with reduced representation in arcuation mode) of the dewatering screen of cylinder mould machine, and it has anti-counterfeiting line.
Detailed description of the invention
Fig. 1 schematically shows according to substrate 1 of the present invention, has strip anti-counterfeiting line 3.Substrate 1 has the multistage watermark 2 to the form that the thickness of substrate 1 is modulated, and it represents lettering " WASSER " in transmitted light.
Anti-counterfeiting line 3 embeds in substrate 1, and can only identify in transmitted light, namely when irradiating from side, and when watching from opposite side, instead of identifies under incident light, namely when irradiating from same side and watching.Anti-counterfeiting line 3 is introduced in substrate 1, makes it also extend through watermark 2, and arrives the surface of substrate 1 in the specific region 5 of watermark 2, and it also can be identified under incident light.In these specific regions 5, the fact that the modulation via the thickness of watermark 2 pairs of substrates 1 causes is: substrate 1 is thin especially.
Fig. 2 illustrates the cross section (illustrate with plane, instead of illustrate, with reduced representation in arcuation mode) of the dewatering screen of cylinder mould machine, and it has anti-counterfeiting line.
Cylinder paper machine is made up of dewatering screen 6, and dewatering screen immerses in water-fibre suspension, and water-fibre suspension is arranged in bucket again.Cylinder paper machine is such as known from patent application WO2008/071325A1.The fiber of water-fibre suspension is preferably made up of cotton fiber or annual fiber, as the manufacture of bank-note paper use.Such as, but other fiber is also possible, the mixture of synthetic fiber or cellulose fibre or different fiber, the such as mixture of cotton and cellulose fibre.And water-fibre suspension can have additive, such as speckle fiber or dyestuff.
Dewatering screen 6 according to the present invention has carrier sieve, and it has the multistage relief 7 of the watermark form that will produce in a part of region, and multistage relief is formed by injection molding perforation watermark inserter.
Strip anti-counterfeiting line 3 is supplied to dewatering screen 6 via deflection roll (as the ring-type element from spool, ring-type element is wrapped on spool).So, strip Security element 5 is supported on the protuberance of multistage relief 7.
During immersion water-fibre suspension, fiber and additive (if any) on the downside of the upside of anti-counterfeiting line 3 and its on be deposited on cylinder 1, namely between cylinder 1 and strip Security element 5, thus form paper web, anti-counterfeiting line 3 will embed in paper web.
In the inside of dewatering screen, relative to the atmospheric pressure of surrounding environment, produce slight negative pressure, make the water of water-fibre suspension suck cylinder interior.But, the fiber of water-fibre suspension not by the multilayer tablet of pillars and fine-meshed fabric or mesh, and at the built up on surfaces of cylinder.Be supported on the position on the protuberance of multistage relief 7 at anti-counterfeiting line 3, anti-counterfeiting line 3 is inhaled on the protuberance of multistage relief 7 by the negative pressure of cylinder 1 inside, makes can not accumulate any water-fibre suspension in this region and also can not accumulate fiber or additive thus.This means that anti-counterfeiting line 3 does not have paper fiber in this region, and paper fiber can be accumulated in peripheral region.Directly be supported on the position on the protuberance of multistage relief 7 at anti-counterfeiting line 3, in paper, form an opening thus, make anti-counterfeiting line 3 arrive the surface of paper.This means that the position on the protuberance that anti-counterfeiting line 3 is directly supported on multistage relief 7 can not accumulate any fiber, make in these positions, region 5 there will be, and anti-counterfeiting line 3 arrives the surface of substrate 1 at region 5 place.
After about 3/4ths of dewatering screen rotates, take off the cheque paper of generation via felt and deflection roll from dewatering screen, and for giving further process, dry especially further.
Claims (6)
1. one kind has valency and cheque paper, it is made up of paper substrates, and there is at least one multistage watermark, wherein, described watermark is formed by the modulation to the thickness of substrate, the density of the substrate in described watermark keeps at least almost equal, wherein, embed in described substrate with at least one anti-counterfeiting line of ring-type element structure, it is characterized in that, at least one cheque paper described is arranged in the region of at least one watermark described at least in part, and due to the modulation of the thickness to the substrate in described watermark, at least one anti-counterfeiting line described is arranged close to the surface of described substrate or is arranged in the surface of described substrate completely at least in part.
2. have valency and cheque paper as claimed in claim 1, it is characterized in that, described watermark is so-called " high-resolution watermark " (HRW).
3. as described in any one of the claims, there are valency and cheque paper, it is characterized in that, at least one watermark described represents a pattern, and at least one anti-counterfeiting line described, represent a pattern, wherein, the pattern of at least one anti-counterfeiting line described supplements at least in part and/or continues and/or imitate the pattern of at least one watermark described.
4. as described in any one of the claims, have valency and cheque paper, it is characterized in that, described anti-counterfeiting line is furnished with diffraction structure and/or liquid crystal layer and/or membrane structure and/or gap and/or fluorescent material and/or magnetic, conduction and/or metal level.
5. one kind for the manufacture of the method having valency and cheque paper according to any one of Claims 1-4, wherein, anti-counterfeiting line registration is introduced in the paper pulp of cylinder mould machine, make to guide described anti-counterfeiting line at least in part on the protuberance and depression of the dewatering screen of described cylinder mould machine, described protuberance and described depression produce multistage watermark.
6. method as claimed in claim 5, it is characterized in that, the dewatering screen of described cylinder mould machine has carrier sieve, and described carrier sieve has the multistage relief of the watermark form that will produce in a part of region, wherein, described multistage relief is formed by injection molding perforation watermark inserter.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013008082.7A DE102013008082A1 (en) | 2013-05-10 | 2013-05-10 | Value and security document with a watermark and security thread |
| DE102013008082.7 | 2013-05-10 | ||
| PCT/EP2014/001182 WO2014180549A1 (en) | 2013-05-10 | 2014-05-02 | Value and security document having a watermark and a security thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105209688A true CN105209688A (en) | 2015-12-30 |
Family
ID=50771454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480026543.9A Pending CN105209688A (en) | 2013-05-10 | 2014-05-02 | Value and security document having a watermark and a security thread |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2994574A1 (en) |
| CN (1) | CN105209688A (en) |
| DE (1) | DE102013008082A1 (en) |
| RU (1) | RU2015152845A (en) |
| WO (1) | WO2014180549A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019033889A1 (en) * | 2017-08-17 | 2019-02-21 | 保定钞票纸业有限公司 | Paper preparation method capable of controlling watermark brightness and paper product with high-brightness watermark |
| CN111016494A (en) * | 2019-11-20 | 2020-04-17 | 中钞特种防伪科技有限公司 | Anti-counterfeiting element and anti-counterfeiting product |
| CN112074416A (en) * | 2018-04-23 | 2020-12-11 | 欧贝特信托公司 | Anti-counterfeiting paper |
| CN113936374A (en) * | 2021-09-26 | 2022-01-14 | 中国农业银行股份有限公司四川省分行 | Paper currency identification method based on double-attention machine system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015000690A1 (en) * | 2015-01-20 | 2016-07-21 | Giesecke & Devrient Gmbh | Disk with a window security thread |
| DE102015000694A1 (en) * | 2015-01-20 | 2016-07-21 | Giesecke & Devrient Gmbh | Disk with a window security thread |
| DE102017006708A1 (en) * | 2017-07-14 | 2019-01-17 | Giesecke+Devrient Currency Technology Gmbh | Drainage screen for papermaking |
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| WO2005106118A1 (en) * | 2004-04-30 | 2005-11-10 | De La Rue International Limited | Improvements in substrates incorporating security devices |
| CN100999881A (en) * | 2006-01-13 | 2007-07-18 | 中国印钞造币总公司 | Triple anti-forge material and triple anti-forge paper product thereof |
| WO2008071325A1 (en) * | 2006-12-12 | 2008-06-19 | Giesecke & Devrient Gmbh | Dewatering screen and method for the production thereof |
| CN101450591A (en) * | 2007-11-29 | 2009-06-10 | 上海东港印刷有限公司 | Anti-counterfeit bills production method |
| WO2010036104A1 (en) * | 2008-09-26 | 2010-04-01 | Vhp Veiligheidspapierfabriek Ugchelen B.V. | Method for producing a watermark element, watermark element, and also applications |
| DE102010034693A1 (en) * | 2010-08-18 | 2012-02-23 | Giesecke & Devrient Gmbh | Method for producing a security paper and round screen for it |
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| DE3601114A1 (en) * | 1986-01-16 | 1987-07-23 | Gao Ges Automation Org | METHOD FOR PRODUCING SECURITY PAPER WITH STORED SECURITY THREAD |
| DE10243653A1 (en) | 2002-09-19 | 2004-04-01 | Giesecke & Devrient Gmbh | security paper |
| GB2395959B (en) | 2002-12-05 | 2004-11-10 | Rue De Int Ltd | Method and apparatus for manufacturing a fibrous substrate incorporating an el ongate element |
| GB0525888D0 (en) * | 2005-12-20 | 2006-02-01 | Rue De Int Ltd | Improvements in methods of manufacturing security substrates |
| ES2325568B1 (en) * | 2008-03-07 | 2010-06-16 | Fabrica Nacional De Moneda Y Timbre- Real Casa De La Moneda | SECURITY PAPER, MANUFACTURING METHOD AND SECURITY DOCUMENT OBTAINED WITH SUCH PAPER. |
| DE102011116605A1 (en) | 2011-10-21 | 2013-04-25 | Giesecke & Devrient Gmbh | dewatering |
| DE102012018166A1 (en) | 2012-09-13 | 2014-03-13 | Giesecke & Devrient Gmbh | Injection molding tool for producing a watermark insert in a dewatering screen |
| DE102012024014A1 (en) | 2012-12-07 | 2014-06-26 | Giesecke & Devrient Gmbh | Device for producing a multilayer security paper with recesses |
-
2013
- 2013-05-10 DE DE102013008082.7A patent/DE102013008082A1/en not_active Withdrawn
-
2014
- 2014-05-02 CN CN201480026543.9A patent/CN105209688A/en active Pending
- 2014-05-02 RU RU2015152845A patent/RU2015152845A/en not_active Application Discontinuation
- 2014-05-02 EP EP14725631.7A patent/EP2994574A1/en not_active Withdrawn
- 2014-05-02 WO PCT/EP2014/001182 patent/WO2014180549A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005106118A1 (en) * | 2004-04-30 | 2005-11-10 | De La Rue International Limited | Improvements in substrates incorporating security devices |
| CN100999881A (en) * | 2006-01-13 | 2007-07-18 | 中国印钞造币总公司 | Triple anti-forge material and triple anti-forge paper product thereof |
| WO2008071325A1 (en) * | 2006-12-12 | 2008-06-19 | Giesecke & Devrient Gmbh | Dewatering screen and method for the production thereof |
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| WO2010036104A1 (en) * | 2008-09-26 | 2010-04-01 | Vhp Veiligheidspapierfabriek Ugchelen B.V. | Method for producing a watermark element, watermark element, and also applications |
| DE102010034693A1 (en) * | 2010-08-18 | 2012-02-23 | Giesecke & Devrient Gmbh | Method for producing a security paper and round screen for it |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019033889A1 (en) * | 2017-08-17 | 2019-02-21 | 保定钞票纸业有限公司 | Paper preparation method capable of controlling watermark brightness and paper product with high-brightness watermark |
| CN110869555A (en) * | 2017-08-17 | 2020-03-06 | 保定钞票纸业有限公司 | Paper preparation method capable of controlling watermark brightness and paper product with highlight watermark |
| CN110869555B (en) * | 2017-08-17 | 2021-12-07 | 保定钞票纸业有限公司 | Paper preparation method capable of controlling watermark brightness and paper product |
| CN112074416A (en) * | 2018-04-23 | 2020-12-11 | 欧贝特信托公司 | Anti-counterfeiting paper |
| CN111016494A (en) * | 2019-11-20 | 2020-04-17 | 中钞特种防伪科技有限公司 | Anti-counterfeiting element and anti-counterfeiting product |
| CN111016494B (en) * | 2019-11-20 | 2021-01-26 | 中钞特种防伪科技有限公司 | Anti-counterfeiting element and anti-counterfeiting product |
| CN113936374A (en) * | 2021-09-26 | 2022-01-14 | 中国农业银行股份有限公司四川省分行 | Paper currency identification method based on double-attention machine system |
| CN113936374B (en) * | 2021-09-26 | 2024-03-15 | 中国农业银行股份有限公司四川省分行 | Paper currency identification method based on double-attention mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014180549A1 (en) | 2014-11-13 |
| DE102013008082A1 (en) | 2014-11-13 |
| EP2994574A1 (en) | 2016-03-16 |
| RU2015152845A (en) | 2017-06-16 |
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Application publication date: 20151230 |