CA2603929A1 - A security strip and security paper incorporating said strip - Google Patents
A security strip and security paper incorporating said strip Download PDFInfo
- Publication number
- CA2603929A1 CA2603929A1 CA002603929A CA2603929A CA2603929A1 CA 2603929 A1 CA2603929 A1 CA 2603929A1 CA 002603929 A CA002603929 A CA 002603929A CA 2603929 A CA2603929 A CA 2603929A CA 2603929 A1 CA2603929 A1 CA 2603929A1
- Authority
- CA
- Canada
- Prior art keywords
- points
- security
- strip
- pattern
- space
- 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.)
- Abandoned
Links
- 239000000463 material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 abstract description 8
- 230000003287 optical effect Effects 0.000 abstract description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000005242 forging Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
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
- 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
-
- 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
- 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
- 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
- B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
-
- B42D2035/08—
-
- B42D2035/14—
-
- B42D2035/34—
Landscapes
- Credit Cards Or The Like (AREA)
- Printing Methods (AREA)
- Paper (AREA)
Abstract
A security strip (1) consisting of sectors in which the background is non-continuous so that it is more difficult to duplicate by optical means than a continuous background, thereby making the strip harder to counterfeit. The non-continuous background consists of a dot pattern (2) printed using conventional printing techniques on an area (3) in which the repeated absence of dots defines a symbol (4), wherein the dots (2) of the pattern are geometrically and dimensionally distributed in such a way that they cannot be seen by the naked eye because the gap (3) between the dots cannot be discerned and the background appears to be continuous.
Description
A SECURITY STRIP AND SECURITY PAPER INCORPORATING SAID
STRIP
DESCRIPTION
OBJECT OF THE INVENTION
The present invention refers to a security strip obtained by conventional printing means at a reduced cost, as well as to the security paper, such as legal tender banknotes, a bank cheque, or another type of document incorporating said security strip.
It is the object of the invention to obtain a security strip the background of which is formed by a discontinuous pattern of points that is difficult to reproduce by optical means in order to make it difficult to forge.
It is also the object of the invention that the pattern of points is obtained in a simple manner according to a specific geometrical and dimensional distribution and such that the background seems to be continuous to the naked eye.
BACKGROUND OF THE INVENTION
A common technique in security paper manufacture is the insertion of a fine strip of material, such as polyester, that is used as a security strip those embedded in the paper in order to make forging of the security document difficult.
Patent of invention US 4 652 015 proposes a procedure to incorporate a security strip in the security paper used for banknotes and bank cheques, a strip that is formed such that the characters on the strip can only be read by means of transmitted light and are not visible under reflected light.
This security strip consists of polyester sheet coated by an aluminium sheet on which the characters are printed by means of a caustic soda resistant ink, such that the surface on which the characters have not been reflected gives off when in contact with caustic soda, the characters then remaining slightly in relief.
In the event of these characters being large they may be visible under reflected light and could therefore be imitated by a forger using printing techniques with certain links, which although not perfect could deceive the general public. The optical effect caused by the metallic characters is not easy to reproduce; however, since the characters occupied a small space within the strip a defect in the imitation can go unnoticed.
Known as an evolution in the techniques used to make forgery more difficult is the security paper proposed in patent of invention EP 0 319 157, comprising a waterproof security strip consisting of a metal sheet on at least one of its two sides with metal-free portions consisting in repeating marks, words or designs. In contrast to the patent described above, the metal surface constitutes the background and there is therefore a greater continuous metal surface, which makes its reproduction noticeably more difficult, even more due to the fact that there are no printing means that may imitate the contrast provided by a continuous metallic strip when the document is examined with reflected or transmitted light.
One of the problems associated to printing techniques in order to achieve continuous metallisation of the strip consists in the fact that they are not easily accessible to manufacturers and the printing is very slow, on the other hand another problem relates to the incorporation of fluorescent elements being extraordinarily complicated if the metal part of the security strip is continuous and dark.
DESCRIPTION OF THE INVENTION
The invention proposed consists in the security strip or band obtained at low cost by means of conventional printing techniques that produce a discontinuous background configured by a pattern of points that is hardly noticeable to the naked eye but that observed with suitable magnifying means allows distinguishing the characteristics thereof, as well as the object of the invention being the security paper incorporating said strip.
The pattern of points on the security strip will usually constitute the background of the letters or signs incorporated on the strip, letters or signs that will be formed thereon by the absence of points.
One of the advantages derived from the present invention refers to the configuration of the background being by means of a discontinuous pattern instead of a continuous background, which makes it more difficult to reproduce by optical means, thus obtaining greater security.
Similarly, the configuration of the background by means of a pattern allows incorporating fluorescent, phosphorescent, luminescent, magnetic and other elements either in the points and/or in the space between the points, or the area of the points can be distinguished from the space by the use of fluorescent materials in different colours.
Using simple printing techniques it is possible to achieve the discontinuous pattern of points with the features described regarding the difficulty of forging, at the same time as simulating a background that seems continuous to the naked eye.
STRIP
DESCRIPTION
OBJECT OF THE INVENTION
The present invention refers to a security strip obtained by conventional printing means at a reduced cost, as well as to the security paper, such as legal tender banknotes, a bank cheque, or another type of document incorporating said security strip.
It is the object of the invention to obtain a security strip the background of which is formed by a discontinuous pattern of points that is difficult to reproduce by optical means in order to make it difficult to forge.
It is also the object of the invention that the pattern of points is obtained in a simple manner according to a specific geometrical and dimensional distribution and such that the background seems to be continuous to the naked eye.
BACKGROUND OF THE INVENTION
A common technique in security paper manufacture is the insertion of a fine strip of material, such as polyester, that is used as a security strip those embedded in the paper in order to make forging of the security document difficult.
Patent of invention US 4 652 015 proposes a procedure to incorporate a security strip in the security paper used for banknotes and bank cheques, a strip that is formed such that the characters on the strip can only be read by means of transmitted light and are not visible under reflected light.
This security strip consists of polyester sheet coated by an aluminium sheet on which the characters are printed by means of a caustic soda resistant ink, such that the surface on which the characters have not been reflected gives off when in contact with caustic soda, the characters then remaining slightly in relief.
In the event of these characters being large they may be visible under reflected light and could therefore be imitated by a forger using printing techniques with certain links, which although not perfect could deceive the general public. The optical effect caused by the metallic characters is not easy to reproduce; however, since the characters occupied a small space within the strip a defect in the imitation can go unnoticed.
Known as an evolution in the techniques used to make forgery more difficult is the security paper proposed in patent of invention EP 0 319 157, comprising a waterproof security strip consisting of a metal sheet on at least one of its two sides with metal-free portions consisting in repeating marks, words or designs. In contrast to the patent described above, the metal surface constitutes the background and there is therefore a greater continuous metal surface, which makes its reproduction noticeably more difficult, even more due to the fact that there are no printing means that may imitate the contrast provided by a continuous metallic strip when the document is examined with reflected or transmitted light.
One of the problems associated to printing techniques in order to achieve continuous metallisation of the strip consists in the fact that they are not easily accessible to manufacturers and the printing is very slow, on the other hand another problem relates to the incorporation of fluorescent elements being extraordinarily complicated if the metal part of the security strip is continuous and dark.
DESCRIPTION OF THE INVENTION
The invention proposed consists in the security strip or band obtained at low cost by means of conventional printing techniques that produce a discontinuous background configured by a pattern of points that is hardly noticeable to the naked eye but that observed with suitable magnifying means allows distinguishing the characteristics thereof, as well as the object of the invention being the security paper incorporating said strip.
The pattern of points on the security strip will usually constitute the background of the letters or signs incorporated on the strip, letters or signs that will be formed thereon by the absence of points.
One of the advantages derived from the present invention refers to the configuration of the background being by means of a discontinuous pattern instead of a continuous background, which makes it more difficult to reproduce by optical means, thus obtaining greater security.
Similarly, the configuration of the background by means of a pattern allows incorporating fluorescent, phosphorescent, luminescent, magnetic and other elements either in the points and/or in the space between the points, or the area of the points can be distinguished from the space by the use of fluorescent materials in different colours.
Using simple printing techniques it is possible to achieve the discontinuous pattern of points with the features described regarding the difficulty of forging, at the same time as simulating a background that seems continuous to the naked eye.
For this reason the pattern of points will have a distribution of the points forming it according to a series of geometric characteristics detailed below:
The points will be distributed in lines determining a screen ruling comprised between 30 and 200 lines per centimetre, within the usual screen angles.
The minimum space between the centres of the points that are distributed on a same diagonal is comprised between 10 and 270 microns.
DESCRIPTION OF THE DRAWINGS
In order to complement the description being made and to aid towards a better comprehension of the features of the invention, according to our preferred practical embodiment, we incorporate as an integral part of said description a set of drawings that are illustrative and not limiting in nature, and represent the following:
Figure 1.- Shows an enlarged view of the section of the security strip for a banknote showing the background formed by a discontinuous pattern of points where the absence of points forms a symbol.
PREFERRED EMBODIMENT OF THE INVENTION
The security strip (1) object of this invention, as observed in Figure 1, is made up of sectors with a discontinuous background consisting in a pattern of points (2) defined upon a space (3) where the repeated absence of points defines a symbol (4), it being foreseen that the points (2) of the pattern are distributed geometrically and dimensionally so that they are not visible to the naked eye, that is, that the space (3) between the points is barely noticeable.
In this sense, according to that mentioned above, it is considered that the points (2) are distributed in lines with a concentration comprised between 30 and 200 lines per centimetre.
Similarly, the distance a, represented in the Figure, corresponding to the distance between the centres of the points (2) that are distributed on a same diagonal is comprised between 10 and 270 microns.
According to this distribution of the points (2) forming the pattern, it is contemplated that the material of the points (2) can have features of fluorescence, phosphorescence or magnetism and that the material of the space (3) does not have that feature, or the other way around, or similarly there is the possibility that the material of the points (2) is fluorescent and the material of the space (3) is also fluorescent, but in different colours. On the other hand, the combination of materials with phosphorescence or magnetism features for the points (2) and for the space (3) is also contemplated.
The security strip thus formed with the features described can be incorporated on a paper, such as a banknote, a bank check all others, in order to thus provide it with security properties that make it difficult to forge.
The points will be distributed in lines determining a screen ruling comprised between 30 and 200 lines per centimetre, within the usual screen angles.
The minimum space between the centres of the points that are distributed on a same diagonal is comprised between 10 and 270 microns.
DESCRIPTION OF THE DRAWINGS
In order to complement the description being made and to aid towards a better comprehension of the features of the invention, according to our preferred practical embodiment, we incorporate as an integral part of said description a set of drawings that are illustrative and not limiting in nature, and represent the following:
Figure 1.- Shows an enlarged view of the section of the security strip for a banknote showing the background formed by a discontinuous pattern of points where the absence of points forms a symbol.
PREFERRED EMBODIMENT OF THE INVENTION
The security strip (1) object of this invention, as observed in Figure 1, is made up of sectors with a discontinuous background consisting in a pattern of points (2) defined upon a space (3) where the repeated absence of points defines a symbol (4), it being foreseen that the points (2) of the pattern are distributed geometrically and dimensionally so that they are not visible to the naked eye, that is, that the space (3) between the points is barely noticeable.
In this sense, according to that mentioned above, it is considered that the points (2) are distributed in lines with a concentration comprised between 30 and 200 lines per centimetre.
Similarly, the distance a, represented in the Figure, corresponding to the distance between the centres of the points (2) that are distributed on a same diagonal is comprised between 10 and 270 microns.
According to this distribution of the points (2) forming the pattern, it is contemplated that the material of the points (2) can have features of fluorescence, phosphorescence or magnetism and that the material of the space (3) does not have that feature, or the other way around, or similarly there is the possibility that the material of the points (2) is fluorescent and the material of the space (3) is also fluorescent, but in different colours. On the other hand, the combination of materials with phosphorescence or magnetism features for the points (2) and for the space (3) is also contemplated.
The security strip thus formed with the features described can be incorporated on a paper, such as a banknote, a bank check all others, in order to thus provide it with security properties that make it difficult to forge.
Claims (5)
1.- A security strip (1) that can be inserted in a paper forming a security document characterised in that it is formed by sectors in which a discontinuous background consisting in a pattern of points (2) defined upon a space (3) is observed, wherein the repeated absence of points defines a symbol (4), it being foreseen that:
- ~the points (2) of the pattern are distributed in lines according to a concentration comprised between 30 and 200 lines per centimetre, within the usual screen angles.
- ~the minimum distance between the centres of the points (2) that are distributed on a same diagonal is comprised between 10 and 270 microns, such that the points (2) cannot be distinguished and the space (3) between the points is barely noticeable to the naked eye.
- ~the points (2) of the pattern are distributed in lines according to a concentration comprised between 30 and 200 lines per centimetre, within the usual screen angles.
- ~the minimum distance between the centres of the points (2) that are distributed on a same diagonal is comprised between 10 and 270 microns, such that the points (2) cannot be distinguished and the space (3) between the points is barely noticeable to the naked eye.
2.- A security strip according to claim 1, characterised in that the points (2) forming the pattern are made in a material chosen from fluorescent, phosphorescent, luminescent and magnetic.
3.- A security strip according to claim 1, characterised in that the space (3) is formed in a material chosen from fluorescent, phosphorescent, luminescent and magnetic.
4.- A security strip according to claim 1, characterised in that the points (2) forming the pattern and the space (3) are formed in a material chosen from fluorescent, phosphorescent, luminescent and magnetic.
5.- A security paper incorporating a security band that can be obtained according to the characteristics described in claims 1 to 4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/ES2005/000178 WO2006108885A1 (en) | 2005-04-06 | 2005-04-06 | Security strip and security paper comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2603929A1 true CA2603929A1 (en) | 2006-10-19 |
Family
ID=37086611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002603929A Abandoned CA2603929A1 (en) | 2005-04-06 | 2005-04-06 | A security strip and security paper incorporating said strip |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1876032A1 (en) |
| BR (1) | BRPI0520335B1 (en) |
| CA (1) | CA2603929A1 (en) |
| MX (1) | MX2007012503A (en) |
| WO (1) | WO2006108885A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8614758D0 (en) * | 1986-06-17 | 1986-07-23 | Norprint International Ltd | Security system |
| ES2075787B1 (en) * | 1993-02-08 | 1998-07-16 | Nacional Moneda Timbre | IMPROVEMENTS INTRODUCED IN THE PROCEDURES FOR OBTAINING SECURITY PAPER, ESPECIALLY CURRENCY PAPER. |
| ATE183448T1 (en) * | 1995-01-11 | 1999-09-15 | Nationale Bank Van Belgie N V | COPY PROTECTED DOCUMENTS AND PRINTING METHODS FOR PRODUCING COPY PROTECTED DOCUMENTS |
| ES2321611T3 (en) * | 2004-10-29 | 2009-06-09 | Hueck Folien Ges.M.B.H | SECURITY ELEMENT. |
-
2005
- 2005-04-06 MX MX2007012503A patent/MX2007012503A/en active IP Right Grant
- 2005-04-06 WO PCT/ES2005/000178 patent/WO2006108885A1/en active Application Filing
- 2005-04-06 CA CA002603929A patent/CA2603929A1/en not_active Abandoned
- 2005-04-06 BR BRPI0520335A patent/BRPI0520335B1/en not_active IP Right Cessation
- 2005-04-06 EP EP05731848A patent/EP1876032A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP1876032A1 (en) | 2008-01-09 |
| WO2006108885A1 (en) | 2006-10-19 |
| BRPI0520335A2 (en) | 2009-05-05 |
| BRPI0520335B1 (en) | 2017-02-14 |
| MX2007012503A (en) | 2007-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |
Effective date: 20130912 |