WO2004089645A1 - Procedimiento para obtener un grabado, en especial un grabado para comprobar la autenticidad de documentos y similares - Google Patents
Procedimiento para obtener un grabado, en especial un grabado para comprobar la autenticidad de documentos y similares Download PDFInfo
- Publication number
- WO2004089645A1 WO2004089645A1 PCT/ES2003/000172 ES0300172W WO2004089645A1 WO 2004089645 A1 WO2004089645 A1 WO 2004089645A1 ES 0300172 W ES0300172 W ES 0300172W WO 2004089645 A1 WO2004089645 A1 WO 2004089645A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- lines
- frame
- documents
- design
- authenticity
- Prior art date
Links
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/02—Engraving; Heads therefor
- B41C1/025—Engraving; Heads therefor characterised by means for the liquid etching of substrates for the manufacturing of relief or intaglio printing forms, already provided with resist pattern
Definitions
- the present invention relates to a method for obtaining an engraving, especially an engraving to verify the authenticity of documents and the like with sensations in the light that make it inimitable.
- holograms for a plurality of uses.
- One such use is to verify the authenticity of documents, such as tickets for events, official documents and even to verify the veracity of banknotes as well as credit cards taking advantage of the optical properties of the holograms.
- this type of procedure has the main drawback that it has a high manufacturing cost and the desired results are not always achieved in the hologram obtained. This is due to the fact that on several occasions, although it can be laboriously falsified when it is possible to expose its structure or it can be copied by photographic techniques.
- the objective of the process of the present invention is to solve the drawbacks of the procedures to obtain holograms known in the art, further providing a plurality of advantages described below.
- a first characteristic of the procedure for obtaining an engraving especially an engraving to verify the authenticity of documents and the like, it is characterized by the fact that it comprises the steps of: a) Performing a graphic design using computer means; b) Constitute a plot about the previous design through a computer program; c) Add a plurality of lines to said frame by means of a computer program; d) Transfer the design with the plot and its corresponding lines to a film by means of a laser drum; e) And record the film on a manganese plate using a chemical process.
- the lines comprising the frame have a closed path of curved shapes.
- the lines comprising the frame have their variable radii, do not have a concentric arrangement between them and the frame has a density of 120 lines per inch. In this way, the engraving obtained cannot be falsified by using a laser scanner or other device with similar characteristics.
- the weft lines have a thickness of one tenth of a millimeter.
- the lines have a thickness of half a tenth of a millimeter.
- Figure 1 is a step diagram of the process of the present invention
- Figure 2 is a plan view of an enlarged graphic design obtained from the process of the invention.
- Figure 3 is a detailed plan view of the plot lines comprising the graphic design depicted in the previous figure.
- the first step 1 to obtain the engraving process of the invention consists in making a graphic type design 2, as seen in figure 2, by means of a computer program of known and used type in the scope of the invention.
- the next step 5 consists in adding to said frame 4 a plurality of lines 6 of a thickness of half a tenth of a millimeter by means of a computer program.
- These lines 6 are drawn randomly but always complying with a series of geometric rules. These rules consist in the fact that lines 6 have a closed trajectory of curved shapes, have variable radii and are not concentric lines. Said geometric rules can be seen in greater detail in Figure 3 of the embodiment.
- the next step 7 is to transfer the design 2 with the frame 4 and its corresponding lines to a film of a known type technically called photolith, such as the type used to obtain holograms which are composed of several layers.
- a drum laser device of known type is used. Said device allows to obtain a great precision, allowing to work with a density of 120 lines per inch. This density factor is an important element to prevent its reproduction by third parties.
- the last stage 8 consists in recording the film on a manganese plate (not shown) by means of a chemical process. Said process is carried out by the inclusion of an acid that penetrates through the existing holes 9 in the frame 4, which have very small dimensions that reach to millimeter millimeters.
- the insolation is produced by a vacuum insoler.
- a plate that acts as a negative is obtained, from which it can be used for printing the engraving.
- the tone in the engraving depends fundamentally on the plot 4, that is, on the separation between the lines that constitute it.
- the procedure described above has the main advantage that it has a lower manufacturing cost than the cost used to obtain holograms.
- Another advantage, not less important, is the fact that its reproduction can be avoided by means of a laser scanner or other type of photographic medium of the same characteristics, so that it is a procedure with very good results within the field of printing.
Landscapes
- Manufacture Or Reproduction Of Printing Formes (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003224165A AU2003224165A1 (en) | 2003-04-14 | 2003-04-14 | Process for producing an authentication mark, specially a mark for verifying the authenticity of documents and the like |
PCT/ES2003/000172 WO2004089645A1 (es) | 2003-04-14 | 2003-04-14 | Procedimiento para obtener un grabado, en especial un grabado para comprobar la autenticidad de documentos y similares |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/ES2003/000172 WO2004089645A1 (es) | 2003-04-14 | 2003-04-14 | Procedimiento para obtener un grabado, en especial un grabado para comprobar la autenticidad de documentos y similares |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004089645A1 true WO2004089645A1 (es) | 2004-10-21 |
Family
ID=33155438
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/ES2003/000172 WO2004089645A1 (es) | 2003-04-14 | 2003-04-14 | Procedimiento para obtener un grabado, en especial un grabado para comprobar la autenticidad de documentos y similares |
Country Status (2)
Country | Link |
---|---|
AU (1) | AU2003224165A1 (es) |
WO (1) | WO2004089645A1 (es) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102285266A (zh) * | 2010-06-02 | 2011-12-21 | 施乐公司 | 增强文件鉴别的方法以及具有增强安全性的文件 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0279526A2 (en) * | 1987-02-18 | 1988-08-24 | CarnaudMetalbox plc | Security document |
WO1999026793A1 (en) * | 1997-11-19 | 1999-06-03 | Securency Pty. Ltd. | Moiré security device |
JP2002307802A (ja) * | 2001-04-11 | 2002-10-23 | Printing Bureau Ministry Of Finance | 偽造防止印刷物及びその作成方法 |
-
2003
- 2003-04-14 WO PCT/ES2003/000172 patent/WO2004089645A1/es not_active IP Right Cessation
- 2003-04-14 AU AU2003224165A patent/AU2003224165A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0279526A2 (en) * | 1987-02-18 | 1988-08-24 | CarnaudMetalbox plc | Security document |
WO1999026793A1 (en) * | 1997-11-19 | 1999-06-03 | Securency Pty. Ltd. | Moiré security device |
JP2002307802A (ja) * | 2001-04-11 | 2002-10-23 | Printing Bureau Ministry Of Finance | 偽造防止印刷物及びその作成方法 |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102285266A (zh) * | 2010-06-02 | 2011-12-21 | 施乐公司 | 增强文件鉴别的方法以及具有增强安全性的文件 |
Also Published As
Publication number | Publication date |
---|---|
AU2003224165A1 (en) | 2004-11-01 |
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