EP2284019B1 - Security paper for laser engraving, security document and method for making security documents - Google Patents
Security paper for laser engraving, security document and method for making security documents Download PDFInfo
- Publication number
- EP2284019B1 EP2284019B1 EP09460025.1A EP09460025A EP2284019B1 EP 2284019 B1 EP2284019 B1 EP 2284019B1 EP 09460025 A EP09460025 A EP 09460025A EP 2284019 B1 EP2284019 B1 EP 2284019B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laser
- security
- antimony
- oxide
- paper
- 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.)
- Active
Links
- 238000010147 laser engraving Methods 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 13
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 74
- 239000000049 pigment Substances 0.000 claims description 35
- 238000010330 laser marking Methods 0.000 claims description 31
- 239000010410 layer Substances 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 27
- 239000011247 coating layer Substances 0.000 claims description 26
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 17
- 235000010215 titanium dioxide Nutrition 0.000 claims description 11
- 230000003213 activating effect Effects 0.000 claims description 10
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/28—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating
- B41M5/282—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using thermochromic compounds or layers containing liquid crystals, microcapsules, bleachable dyes or heat- decomposable compounds, e.g. gas- liberating using thermochromic compounds
- B41M5/283—Inorganic thermochromic compounds
Definitions
- the invention relates to a security paper for laser engraving, a security document and a method for making security documents.
- Security documents may comprise various security features, such as watermarking, microlettering, raised print etc.
- the security features may be common to all documents of specific type or, preferably, may form personalization markings, i.e. document-individual markings.
- Laser engraving is one of the techniques to make markings on security documents.
- Various attempts have been made to achieve efficient laser engraving of paper-based documents.
- a European patent application EP07460036 discloses a paper for personal document sheets, which is coated with a coating mixture containing a pigment, which subjected to laser beam changes color to a contrasting color in relation to the background paper color.
- Such paper may have personalization markings made thereon by laser engraving, where the laser activates the pigment in the coating.
- the aim of the present invention is to provide an improved security paper for laser engraving, a security document comprising the security paper and a method for making security documents, providing improved legibility and clarity of laser-engraved markings.
- the object of the invention is a security paper for laser engraving, comprising a paper substrate layer comprising an antimony-oxide-doped tin dioxide laser-marking pigment and titanium white, the paper substrate layer being coated with a coating layer comprising the antimony-oxide-doped tin dioxide laser-marking pigment, such that when the security paper is subject to a laser beam, the antimony-oxide-doped tin dioxide laser-marking pigment causes change of color of the security paper both within the paper substrate layer and the coating layer.
- the antimony-oxide-doped tin dioxide laser-marking pigment comprises from 95% to 99% by weight of tin dioxide (SnO 2 ) and from 1% to 5% by weight of antimony oxide (Sb 2 O 3 ).
- titanium white comprises rutile form of titanium dioxide (TiO 2 ).
- the paper substrate layer comprises from 2,5% to 10%, preferably 5%, by weight of the antimony-oxide-doped tin dioxide laser-marking pigment.
- the paper substrate layer comprises from 2,5% to 10%, preferably 3,5%, by weight of titanium white.
- the coating layer comprises from 0,5% to 3%, preferably 2%, by weight of the antimony-oxide-doped tin dioxide laser-marking pigment.
- Another object of the present invention is a security document comprising the security paper according to the invention and comprising laser-engraved markings having increased visibility in transmitted light, made by activating the antimony-oxide-doped tin dioxide laser-marking pigment in the coating layer and in the paper substrate layer by laser beam.
- the laser-engraved markings are raised.
- the laser-engraved markings comprise microlettering.
- at least part of the laser-engraved markings are of different shades.
- Another object of the present invention is a method for making security documents, comprising the steps of providing a security paper according to the invention and making markings having increased visibility in transmitted light by laser engraving the security paper by activating the antimony-oxide-doped tin dioxide laser-marking pigment in the coating layer and in the paper substrate layer by laser beam.
- the method comprises the step of laser engraving the security paper with a first set of laser beam parameters so as to obtain raised markings.
- the method comprises the step of laser engraving the security paper with a second set of laser beam parameters so as to obtain microlettering markings.
- the method comprises the step of varying the laser beam parameters so as to obtain markings of different shades.
- a security paper for laser engraving according to the invention has a structure shown in Fig. 1 .
- the paper 100 comprises a paper substrate layer 110 which is coated with a coating layer 120.
- the paper substrate layer 110 comprises an antimony-oxide-doped tin dioxide laser-marking pigment and titanium white.
- the coating layer 120 comprises the antimony-oxide-doped tin dioxide laser-marking pigment.
- Fig. 1 shows the paper substrate layer 110 covered by the coating layer 120 from one side only, but the paper substrate layer 110 may be covered by the coating layer 120 from both sides as well.
- the antimony-oxide-doped tin dioxide laser-marking pigment is an absorber, which locally absorbs laser energy and transforms it into thermal energy, causing change of color, such as darkening, of the material in which the pigment is contained. Therefore, when the security paper 100 is subject to a laser beam, the antimony-oxide-doped tin dioxide laser-marking pigment causes change of color of the security paper 100 both within the paper substrate layer 110 and the coating layer 120.
- Titanium white allows for increasing the contrast of the laser-engraved markings with respect to the background color of the paper substrate, for example white color. Moreover, use of titanium white results in achieving laser-engraved markings in shades of grey, which have been found to be less susceptible to bleaching as compared to sepia-shaded markings.
- the antimony-oxide-doped tin dioxide laser-marking pigment may comprise from 95% to 99% by weight of tin dioxide (SnO 2 ) and from 1% to 5% by weight of antimony oxide (Sb 2 O 3 ). Such pigment allows achieving particularly legible and clear laser-engraved markings.
- Titanium white may be a rutile form of titanium dioxide (TiO 2 ).
- the paper substrate layer may comprise conventional fibres and additives, and in addition preferably from 2,5% to 10%, preferably 5%, by weight of the antimony-oxide-doped tin dioxide laser-marking pigment, and from 2,5% to 10%, preferably 3,5%, by weight of titanium white.
- the coating layer may be made of a conventional coating mixture based on polyvinyl alcohol, which further comprises from 0,5% to 3%, preferably 2%, by weight of the antimony-oxide-doped tin dioxide laser-marking pigment.
- the security paper according to the invention may be used to produce various personalized security documents, such as passports, visas, communication documents, marriage status documents, as well as non-personalized security documents, such as banknotes or excise duty documents.
- Fig. 2 shows a structure of a security document 200 comprising the security paper according to the invention.
- the security document 200 comprises markings 231, 232, 233, which can be personalization markings or general security markings, and which are made by activating by laser beam the antimony-oxide-doped tin dioxide laser-marking pigment in the coating layer 220 and in the paper substrate layer 210. Due to the fact that the markings are present in both layers 210, 220 of the paper, they have increased visibility in transmitted light, similarly to a watermark, thereby forming a security feature of the document.
- At least part 234 of the laser-engraved markings 233 may be raised above the surface of the coating layer 220. Raised markings provide further security features of the document, as well as allow identification of the marking by vision-impaired persons.
- the raised markings 234 may be achieved by using higher laser beam power, as explained below.
- the laser-engraved markings 232 may comprise microlettering, i.e. a string of characters having a small font size, as small as about 0,5 mm in height. Microlettering may also form a security feature of the document. Microlettering 232 markings and other high-quality vector graphics may be achieved by using moderate laser power and relatively low laser beam speed.
- the laser-engraved markings 231 may have different shades. This allows laser-engraving of images with shade-variable background, such as stamps, which may constitute an important security feature of the document. Shade-variable backgrounds 231 may be achieved by varying laser beam power and speed.
- the security document according to the invention may be made by providing a security paper 100 according to the invention and laser engraving the security paper 100 by activating by laser beam the antimony-oxide-doped tin dioxide laser-marking pigment in the coating layer 120 and in the paper substrate layer 110.
- an Nd:YAG 1064 nm laser is used for activating the antimony-oxide-doped tin dioxide laser-marking pigment.
- the impulse duration of the laser is set to 15ns.
- the following laser beam parameters may be used: impulse power from 1,2*10 14 to 1,8*10 14 [W/m 2 ], speed 20000 mm/s, impulse frequency from 700 to 1500 Hz.
- the shade of the marking may be varied by varying the impulse power and frequency: the higher the impulse power and frequency, the darker the shade of the obtained marking.
- the following laser beam parameters may be used: impulse power from 1,1*10 14 to 1,4*10 14 [W/m 2 ], speed from 30 to 60 mm/s, impulse frequency 1500 Hz.
- the following laser beam parameters may be used: impulse power from 2,2*10 14 to 2,4*10 14 [W/m 2 ], speed from 50 to 160 mm/s, impulse frequency 1500 Hz.
- impulse power from 2,2*10 14 to 2,4*10 14 [W/m 2 ]
- speed from 50 to 160 mm/s
- impulse frequency 1500 Hz A higher impulse power leads to higher amount of absorbed energy by the antimony-oxide-doped tin dioxide laser-marking pigment and raising of marking above the surface of the coating layer.
Description
- The invention relates to a security paper for laser engraving, a security document and a method for making security documents.
- Security documents may comprise various security features, such as watermarking, microlettering, raised print etc. The security features may be common to all documents of specific type or, preferably, may form personalization markings, i.e. document-individual markings.
- Laser engraving is one of the techniques to make markings on security documents. Various attempts have been made to achieve efficient laser engraving of paper-based documents.
- A European patent application
EP07460036 - The aim of the present invention is to provide an improved security paper for laser engraving, a security document comprising the security paper and a method for making security documents, providing improved legibility and clarity of laser-engraved markings.
- The object of the invention is a security paper for laser engraving, comprising a paper substrate layer comprising an antimony-oxide-doped tin dioxide laser-marking pigment and titanium white, the paper substrate layer being coated with a coating layer comprising the antimony-oxide-doped tin dioxide laser-marking pigment, such that when the security paper is subject to a laser beam, the antimony-oxide-doped tin dioxide laser-marking pigment causes change of color of the security paper both within the paper substrate layer and the coating layer.
- Preferably, the antimony-oxide-doped tin dioxide laser-marking pigment comprises from 95% to 99% by weight of tin dioxide (SnO2) and from 1% to 5% by weight of antimony oxide (Sb2O3).
- Preferably, titanium white comprises rutile form of titanium dioxide (TiO2).
- Preferably, the paper substrate layer comprises from 2,5% to 10%, preferably 5%, by weight of the antimony-oxide-doped tin dioxide laser-marking pigment. Preferably, the paper substrate layer comprises from 2,5% to 10%, preferably 3,5%, by weight of titanium white. Preferably, the coating layer comprises from 0,5% to 3%, preferably 2%, by weight of the antimony-oxide-doped tin dioxide laser-marking pigment.
- Another object of the present invention is a security document comprising the security paper according to the invention and comprising laser-engraved markings having increased visibility in transmitted light, made by activating the antimony-oxide-doped tin dioxide laser-marking pigment in the coating layer and in the paper substrate layer by laser beam.
- Preferably, at least part of the laser-engraved markings are raised. Preferably, the laser-engraved markings comprise microlettering. Preferably, at least part of the laser-engraved markings are of different shades.
- Another object of the present invention is a method for making security documents, comprising the steps of providing a security paper according to the invention and making markings having increased visibility in transmitted light by laser engraving the security paper by activating the antimony-oxide-doped tin dioxide laser-marking pigment in the coating layer and in the paper substrate layer by laser beam.
- Preferably, the method comprises the step of laser engraving the security paper with a first set of laser beam parameters so as to obtain raised markings. Preferably, the method comprises the step of laser engraving the security paper with a second set of laser beam parameters so as to obtain microlettering markings. Preferably, the method comprises the step of varying the laser beam parameters so as to obtain markings of different shades.
- The invention will now be described by way of example and with reference to the accompanying drawings in which:
-
Fig. 1 shows a structure of a security paper for laser engraving according to the invention. -
Fig. 2 shows a structure of a security document according to the invention. - The drawings are not in scale in order to show individual features of the invention more clearly.
- A security paper for laser engraving according to the invention has a structure shown in
Fig. 1 . Thepaper 100 comprises a paper substrate layer 110 which is coated with acoating layer 120. The paper substrate layer 110 comprises an antimony-oxide-doped tin dioxide laser-marking pigment and titanium white. Thecoating layer 120 comprises the antimony-oxide-doped tin dioxide laser-marking pigment.Fig. 1 shows the paper substrate layer 110 covered by thecoating layer 120 from one side only, but the paper substrate layer 110 may be covered by thecoating layer 120 from both sides as well. - The antimony-oxide-doped tin dioxide laser-marking pigment is an absorber, which locally absorbs laser energy and transforms it into thermal energy, causing change of color, such as darkening, of the material in which the pigment is contained. Therefore, when the
security paper 100 is subject to a laser beam, the antimony-oxide-doped tin dioxide laser-marking pigment causes change of color of thesecurity paper 100 both within the paper substrate layer 110 and thecoating layer 120. - Titanium white allows for increasing the contrast of the laser-engraved markings with respect to the background color of the paper substrate, for example white color. Moreover, use of titanium white results in achieving laser-engraved markings in shades of grey, which have been found to be less susceptible to bleaching as compared to sepia-shaded markings.
- The antimony-oxide-doped tin dioxide laser-marking pigment may comprise from 95% to 99% by weight of tin dioxide (SnO2) and from 1% to 5% by weight of antimony oxide (Sb2O3). Such pigment allows achieving particularly legible and clear laser-engraved markings.
- Titanium white may be a rutile form of titanium dioxide (TiO2).
- The paper substrate layer may comprise conventional fibres and additives, and in addition preferably from 2,5% to 10%, preferably 5%, by weight of the antimony-oxide-doped tin dioxide laser-marking pigment, and from 2,5% to 10%, preferably 3,5%, by weight of titanium white.
- The coating layer may be made of a conventional coating mixture based on polyvinyl alcohol, which further comprises from 0,5% to 3%, preferably 2%, by weight of the antimony-oxide-doped tin dioxide laser-marking pigment.
- The security paper according to the invention may be used to produce various personalized security documents, such as passports, visas, communication documents, marriage status documents, as well as non-personalized security documents, such as banknotes or excise duty documents.
-
Fig. 2 shows a structure of asecurity document 200 comprising the security paper according to the invention. Thesecurity document 200 comprisesmarkings coating layer 220 and in thepaper substrate layer 210. Due to the fact that the markings are present in bothlayers - At least
part 234 of the laser-engravedmarkings 233 may be raised above the surface of thecoating layer 220. Raised markings provide further security features of the document, as well as allow identification of the marking by vision-impaired persons. The raisedmarkings 234 may be achieved by using higher laser beam power, as explained below. - The laser-engraved markings 232 may comprise microlettering, i.e. a string of characters having a small font size, as small as about 0,5 mm in height. Microlettering may also form a security feature of the document. Microlettering 232 markings and other high-quality vector graphics may be achieved by using moderate laser power and relatively low laser beam speed.
- Furthermore, at least part of the laser-engraved
markings 231 may have different shades. This allows laser-engraving of images with shade-variable background, such as stamps, which may constitute an important security feature of the document. Shade-variable backgrounds 231 may be achieved by varying laser beam power and speed. - The security document according to the invention may be made by providing a
security paper 100 according to the invention and laser engraving thesecurity paper 100 by activating by laser beam the antimony-oxide-doped tin dioxide laser-marking pigment in thecoating layer 120 and in the paper substrate layer 110. - In one embodiment of the method according to the invention, an Nd:YAG 1064 nm laser is used for activating the antimony-oxide-doped tin dioxide laser-marking pigment. In this embodiment, the impulse duration of the laser is set to 15ns.
- In order to obtain plain, shaded image, the following laser beam parameters may be used: impulse power from 1,2*1014 to 1,8*1014 [W/m2], speed 20000 mm/s, impulse frequency from 700 to 1500 Hz. The shade of the marking may be varied by varying the impulse power and frequency: the higher the impulse power and frequency, the darker the shade of the obtained marking.
- In order to obtain markings of high quality, such as vector graphics or microlettering, the following laser beam parameters may be used: impulse power from 1,1*1014 to 1,4*1014 [W/m2], speed from 30 to 60 mm/s, impulse frequency 1500 Hz.
- In order to obtain raised markings, the following laser beam parameters may be used: impulse power from 2,2*1014 to 2,4*1014 [W/m2], speed from 50 to 160 mm/s, impulse frequency 1500 Hz. A higher impulse power leads to higher amount of absorbed energy by the antimony-oxide-doped tin dioxide laser-marking pigment and raising of marking above the surface of the coating layer.
Claims (14)
- A security paper for laser engraving, comprising a paper substrate layer (110) comprising an antimony-oxide-doped tin dioxide laser-marking pigment and titanium white, the paper substrate layer (110) being coated with a coating layer (120) comprising the antimony-oxide-doped tin dioxide laser-marking pigment, such that when the security paper (100) is subject to a laser beam, the antimony-oxide-doped tin dioxide laser-marking pigment absorbs the laser beam energy, which is transferred into thermal energy and leading to a change of color of the security paper (100) both within the paper substrate layer (110) and the coating layer (120).
- The security paper according to claim 1, characterized in that the antimony-oxide-doped tin dioxide laser-marking pigment comprises from 95% to 99% by weight of tin dioxide (SnO2) and from 1 % to 5% by weight of antimony oxide (Sb2O3).
- The security paper according to claim 1 or 2, characterized in that titanium white comprises rutile form of titanium dioxide (TiO2).
- The security paper according to any previous claim, characterized in that the paper substrate layer (110) comprises from 2,5% to 10%, preferably 5%, by weight of the antimony-oxide-doped tin dioxide laser-marking pigment.
- The security paper according to any previous claim, characterized in that the paper substrate layer (110) comprises from 2,5% to 10%, preferably 3,5%, by weight of titanium white.
- The security paper according to any previous claim, characterized in that the coating layer (120) comprises from 0,5% to 3%, preferably 2%, by weight of the antimony-oxide-doped tin dioxide laser-marking pigment.
- A security document comprising the security paper according to any of claims 1 to 6 and comprising laser-engraved markings (231, 232, 233) having increased visibility in transmitted light, made by activating the antimony-oxide-doped tin dioxide laser-marking pigment in the coating layer (220) and in the paper substrate layer (210) by a laser beam of parameters such that when the laser beam energy is absorbed by the antimony-oxide-doped tin dioxide laser-marking pigment and transformed into thermal energy, this leads to a change of color of the security paper (100) both within the paper substrate layer (110) and the coating layer (120).
- The security document according to claim 7, characterized in that at least part (234) of the laser-engraved markings (233) are made by activating the antimony-oxide-doped tin dioxide laser-marking pigment in the coating layer (220) and in the paper substrate layer (210) by a laser beam having impulse power from 2,2*1014 to 2,4*1014 [W/m2], speed from 50 to 160 mm/s, impulse frequency 1500 Hz that causes raising of markings above the surface of the coating layer.
- The security document according to claim 7 or 8, characterized in that the laser-engraved markings (232) are made by activating the antimony-oxide-doped tin dioxide laser-marking pigment in the coating layer (220) and in the paper substrate layer (210) by a laser beam having impulse power from 1,1*1014 to 1,4*1014 [W/m2], speed from 30 to 60 mm/s, impulse frequency 1500 Hz that causes forming of microlettering markings.
- The security document according to any of claims 7 to 9, characterized in that at least part of the laser-engraved markings (231) are made by activating the antimony-oxide-doped tin dioxide laser-marking pigment in the coating layer (220) and in the paper substrate layer (210) by a laser beam of variable power and speed and having impulse power from 1,2*1014 to 1,8*1014 [W/m2], speed 20000 mm/s, impulse frequency from 700 to 1500 Hz such that causes forming of shade-variable markings.
- A method for making security documents, comprising the steps of providing a security paper (100) according to any of claims 1 to 6 and making markings (231, 232, 233) having increased visibility in transmitted light by laser engraving the security paper (100) by activating by laser beam the antimony-oxide-doped tin dioxide laser-marking pigment in the coating layer (120) and in the paper substrate layer (110).
- The method according to claim 11, comprising the step of laser engraving the security paper (100) with a laser beam having impulse power from 2,2*1014 to 2,4*1014 [W/m2], speed from 50 to 160 mm/s, impulse frequency 1500 Hz such that causes raising of markings above the surface of the coating layer.
- The method according to claim 11 or 12, comprising the step of laser engraving the security paper by a laser beam having impulse power from 1,1*1014 to 1,4*1014 [W/m2], speed from 30 to 60 mm/s, impulse frequency 1500 Hz such that causes forming of microlettering markings..
- The method according to any of claims 11 to 13, comprising the step of varying the laser beam parameters, having impulse power from 1,2*1014 to 1,8*1014 [W/m2], speed 20000 mm/s, impulse frequency from 700 to 1500 Hz, so as to obtain markings of different shades (231).
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09460025.1T ES2581655T3 (en) | 2009-06-22 | 2009-06-22 | Security paper for laser engraving, security document and method for manufacturing security documents |
EP09460025.1A EP2284019B1 (en) | 2009-06-22 | 2009-06-22 | Security paper for laser engraving, security document and method for making security documents |
PL09460025T PL2284019T3 (en) | 2009-06-22 | 2009-06-22 | Security paper for laser engraving, security document and method for making security documents |
LTEP09460025.1T LT2284019T (en) | 2009-06-22 | 2009-06-22 | Security paper for laser engraving, security document and method for making security documents |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09460025.1A EP2284019B1 (en) | 2009-06-22 | 2009-06-22 | Security paper for laser engraving, security document and method for making security documents |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2284019A1 EP2284019A1 (en) | 2011-02-16 |
EP2284019B1 true EP2284019B1 (en) | 2016-04-13 |
Family
ID=41510513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09460025.1A Active EP2284019B1 (en) | 2009-06-22 | 2009-06-22 | Security paper for laser engraving, security document and method for making security documents |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2284019B1 (en) |
ES (1) | ES2581655T3 (en) |
LT (1) | LT2284019T (en) |
PL (1) | PL2284019T3 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2992256A1 (en) | 2012-06-26 | 2013-12-27 | Arjowiggins Security | ELEMENT IN LASER ENGRAVABLE SHEET. |
GB201503178D0 (en) * | 2015-02-25 | 2015-04-08 | Inovink Ltd And Keeling & Walker Ltd | Improvements in relation to security printing |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3929057A1 (en) * | 1989-09-01 | 1991-03-07 | Metallgesellschaft Ag | ELECTRICALLY CONDUCTIVE RUTILE MIXED-PHASE PIGMENT, METHOD FOR THE PRODUCTION THEREOF AND THE USE THEREOF |
DE4103231A1 (en) * | 1991-02-02 | 1992-08-06 | Metallgesellschaft Ag | Electroconductive pigment providing electromagnetic screening in computer cases - comprises spinel particles coated with antimony-doped tin oxide |
FR2689531B1 (en) * | 1992-04-07 | 1994-12-23 | Arjo Wiggins Sa | Antistatic sheet. |
US5484694A (en) * | 1994-11-21 | 1996-01-16 | Eastman Kodak Company | Imaging element comprising an electrically-conductive layer containing antimony-doped tin oxide particles |
JPH09249820A (en) * | 1996-03-15 | 1997-09-22 | Titan Kogyo Kk | White electroconductive powder and its production |
DE102004027306A1 (en) * | 2004-06-04 | 2005-12-22 | Giesecke & Devrient Gmbh | Security document, e.g. banknote or passport, uses security paper with coated sub-section(s) and are marked with laser so that mark extends over boundary between coating and paper |
WO2006045567A2 (en) * | 2004-10-25 | 2006-05-04 | Merck Patent Gmbh | Use of moulding bodies made of core-shell particles |
DE102006057507A1 (en) * | 2006-12-06 | 2008-06-12 | Merck Patent Gmbh | Optically variable security element |
-
2009
- 2009-06-22 LT LTEP09460025.1T patent/LT2284019T/en unknown
- 2009-06-22 ES ES09460025.1T patent/ES2581655T3/en active Active
- 2009-06-22 PL PL09460025T patent/PL2284019T3/en unknown
- 2009-06-22 EP EP09460025.1A patent/EP2284019B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
ES2581655T3 (en) | 2016-09-06 |
EP2284019A1 (en) | 2011-02-16 |
LT2284019T (en) | 2016-09-12 |
PL2284019T3 (en) | 2017-03-31 |
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