EP0544611A1 - Installation to make security documents and security documents made in such an installation - Google Patents
Installation to make security documents and security documents made in such an installation Download PDFInfo
- Publication number
- EP0544611A1 EP0544611A1 EP92500157A EP92500157A EP0544611A1 EP 0544611 A1 EP0544611 A1 EP 0544611A1 EP 92500157 A EP92500157 A EP 92500157A EP 92500157 A EP92500157 A EP 92500157A EP 0544611 A1 EP0544611 A1 EP 0544611A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- planchettes
- installation
- nozzles
- security documents
- security
- 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.)
- Granted
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Classifications
-
- 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
- D21F1/06—Regulating pulp flow
-
- 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
Definitions
- the present invention relates to an installation that is specifically designed to make security documents, such as paper used as a printing base to obtain banknotes, viz. paper money, and in particular security documents in which the pulp making up the paper will be provided with planchettes, or as appropriate also with fibrils that "personalize” the paper to enhance its security, which planchettes or fibrils are arranged as bands on the paper surface, in the flow direction of the sheet during production.
- security documents such as paper used as a printing base to obtain banknotes, viz. paper money
- planchettes or as appropriate also with fibrils that "personalize” the paper to enhance its security, which planchettes or fibrils are arranged as bands on the paper surface, in the flow direction of the sheet during production.
- the invention also relates to the security documents that result from the practical use of the said installation.
- planchettes and/or fibrils with special characteristics to the pulp making up the paper, in the latter's production process on the respective forming mould or cloth, in order for both the characteristics of the planchettes or fibrils and their specific apportionment to cause the document to be "personalized" as aforesaid.
- planchettes or fibrils in bands are allowed to move down towards the papermaking mould through flexible pipes and from a constant-level box, the downward movement of the planchettes being simply due to gravity, a twofold problem arising from a large deficiency in flow control which at times leads to jamming, and to the supply of planchettes being cut off, and at others to a similarly undesirable over-apportionment.
- the latter may only be changed or regulated by changing the concentration or dispersion of the planchettes in the water of the planchette feed tank.
- the distribution of the planchettes on the paper is also more homogeneous and the same are better attached to the paper surface, to prevent the planchettes from becoming detached during the subsequent printing process.
- the installation to make security documents subject of the invention is structured with a stirring tank fed by the process water and a planchette batcher and with any other alternative or supplementary additive that is deemed necessary or expedient, for instance security fibrils, the said stirring tank having a number of outlets to feed respective nozzles, that are arranged in a row and crosswise to the papermaking mould, a special feature however being that each of the ducts linking the said outlets and the relevant nozzles is provided with a drive pump, working with a pressure and flow regulator thereby to allow the flow or batching of planchettes onto the forming mould, to which the pulp fibres making up the paper are simultaneously applied, to be regulated at will, the planchettes being uniformly distributed by the likewise uniform distribution of the nozzles and the perfect flow regulation at each of them.
- the fact that the system relies on manifold nozzles means that they can each form a band.
- the stirring tank has a double propeller agitator, viz. two propellers at a different height, their direction of rotation causing the contents of the said tank to move towards its bottom, thereby for the homogenization conditions within the said tank to be optimal.
- the said drive pumps located at each of the outlets from the stirring tank are membrane or diaphragm pumps to avoid the same from damaging the planchettes or security elements.
- the nozzles batching the planchettes are positioned just where the sheet of paper begins to form, for the said planchettes to meet with the first fibres reaching the mould, and hence while most of the pulp fibres making up the paper remain under the planchette, some fibres remain above the same, to act as means holding the same and guaranteeing the stability thereof, in particular during the subsequent printing stage.
- the figure shows that the installation subject hereof is structured with a stirring tank (1) where the level of process water arriving through a duct (2) is kept constant with the assistance of a valve (3) controlled by a float (4) or like system, the process water being provided with the planchettes with the assistance of a batcher (5) and as appropriate with any other kind of adjuncts, such as the classic security fibrils.
- the tank (1) is internally fitted with an agitator (6) having a double propeller (7), the direction of rotation of the agitator (6) shaft being such that the said propellers (7) tend to drive the mixture of water and planchettes towards the bottom of the tank (1), thereby to optimally stir the mixture and hence also to optimally homogenize the same.
- the lower tank area is provided with a number of outlets (8) for the same number of ducts (9) that link the same to respective outlet nozzles (10) arranged in a transverse row on the mould (11) to make up the security paper.
- Each such duct (9), and in accordance with one of the essential features of the invention, is provided with a pump (12) equipped with a flow and pressure regulator (13) in order for such regulators to afford a perfect control so that batching by the various nozzles (10) along the transverse working line they define is also perfectly homogeneous, or in other words, for the distribution of the planchettes on the surface of the security paper likewise to be perfectly homogeneous.
- planchettes are incorporated to the paper in the last place, viz. from the nozzles (10) to the mould (11), when the water flows in which the planchettes are dispersed physically drop due to simple gravity, jointly with the indraught there is from outside at the forming cloth (the effect being the same causing paper to be formed when the pulp fibres are laid on the forming mould or cloth) to be integrated in the newly formed paper mass.
- a security document and in particular paper with which to prepare security documents is thus made, with the planchettes playing an essential role in providing paper with its security features being better attached to the same inasmuch as instead of being merely adhered to one of the faces thereof, they are held by some of the paper's pulp fibrils.
Landscapes
- Paper (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
- The present invention relates to an installation that is specifically designed to make security documents, such as paper used as a printing base to obtain banknotes, viz. paper money, and in particular security documents in which the pulp making up the paper will be provided with planchettes, or as appropriate also with fibrils that "personalize" the paper to enhance its security, which planchettes or fibrils are arranged as bands on the paper surface, in the flow direction of the sheet during production.
- The invention also relates to the security documents that result from the practical use of the said installation.
- It is a known fact that in making paper for security documents of this kind it is a wholly widespread practice to provide planchettes and/or fibrils with special characteristics to the pulp making up the paper, in the latter's production process on the respective forming mould or cloth, in order for both the characteristics of the planchettes or fibrils and their specific apportionment to cause the document to be "personalized" as aforesaid.
- Nowadays, and in applying the planchettes or fibrils in bands, these are allowed to move down towards the papermaking mould through flexible pipes and from a constant-level box, the downward movement of the planchettes being simply due to gravity, a twofold problem arising from a large deficiency in flow control which at times leads to jamming, and to the supply of planchettes being cut off, and at others to a similarly undesirable over-apportionment.
- On the other hand and even in the merely theoretical event of the batching remaining constant in time, the latter may only be changed or regulated by changing the concentration or dispersion of the planchettes in the water of the planchette feed tank.
- The installation to make security documents subject of the invention fully solves the above twofold problem, succeeding in particular to achieve an optimal flow regulation and to sustain such flow, once regulated, almost invariable in time.
- Furthermore, the distribution of the planchettes on the paper is also more homogeneous and the same are better attached to the paper surface, to prevent the planchettes from becoming detached during the subsequent printing process.
- More specifically, the installation to make security documents subject of the invention is structured with a stirring tank fed by the process water and a planchette batcher and with any other alternative or supplementary additive that is deemed necessary or expedient, for instance security fibrils, the said stirring tank having a number of outlets to feed respective nozzles, that are arranged in a row and crosswise to the papermaking mould, a special feature however being that each of the ducts linking the said outlets and the relevant nozzles is provided with a drive pump, working with a pressure and flow regulator thereby to allow the flow or batching of planchettes onto the forming mould, to which the pulp fibres making up the paper are simultaneously applied, to be regulated at will, the planchettes being uniformly distributed by the likewise uniform distribution of the nozzles and the perfect flow regulation at each of them. The fact that the system relies on manifold nozzles means that they can each form a band.
- Another characteristic of the invention is that the stirring tank has a double propeller agitator, viz. two propellers at a different height, their direction of rotation causing the contents of the said tank to move towards its bottom, thereby for the homogenization conditions within the said tank to be optimal.
- It is also provided, as another characteristic of the invention, that the said drive pumps located at each of the outlets from the stirring tank are membrane or diaphragm pumps to avoid the same from damaging the planchettes or security elements.
- Finally and as yet another characteristic of the invention, the nozzles batching the planchettes are positioned just where the sheet of paper begins to form, for the said planchettes to meet with the first fibres reaching the mould, and hence while most of the pulp fibres making up the paper remain under the planchette, some fibres remain above the same, to act as means holding the same and guaranteeing the stability thereof, in particular during the subsequent printing stage.
- In order to provide a fuller description and contribute to the complete understanding of the characteristics of this invention, a single sheet of drawings is attached to the specification which, while purely illustrative and not fully comprehensive, diagrammatically shows an installation to make security documents, established in accordance with subject hereof.
- The figure shows that the installation subject hereof is structured with a stirring tank (1) where the level of process water arriving through a duct (2) is kept constant with the assistance of a valve (3) controlled by a float (4) or like system, the process water being provided with the planchettes with the assistance of a batcher (5) and as appropriate with any other kind of adjuncts, such as the classic security fibrils.
- The tank (1) is internally fitted with an agitator (6) having a double propeller (7), the direction of rotation of the agitator (6) shaft being such that the said propellers (7) tend to drive the mixture of water and planchettes towards the bottom of the tank (1), thereby to optimally stir the mixture and hence also to optimally homogenize the same.
- The lower tank area is provided with a number of outlets (8) for the same number of ducts (9) that link the same to respective outlet nozzles (10) arranged in a transverse row on the mould (11) to make up the security paper.
- Each such duct (9), and in accordance with one of the essential features of the invention, is provided with a pump (12) equipped with a flow and pressure regulator (13) in order for such regulators to afford a perfect control so that batching by the various nozzles (10) along the transverse working line they define is also perfectly homogeneous, or in other words, for the distribution of the planchettes on the surface of the security paper likewise to be perfectly homogeneous.
- More specifically, the planchettes are incorporated to the paper in the last place, viz. from the nozzles (10) to the mould (11), when the water flows in which the planchettes are dispersed physically drop due to simple gravity, jointly with the indraught there is from outside at the forming cloth (the effect being the same causing paper to be formed when the pulp fibres are laid on the forming mould or cloth) to be integrated in the newly formed paper mass.
- In this sense, as aforesaid and in accordance with yet another characteristic of the invention, by adjusting the nozzles (10) to batch the planchettes just where the paper sheet begins to form so that the planchettes meet the first fibres to reach the mould, while most of the paper fibres remain under the planchette in making the said paper, some remain above the said planchettes to act as a holding means therefor and, hence, afford a better attachment of the said planchettes.
- A security document and in particular paper with which to prepare security documents is thus made, with the planchettes playing an essential role in providing paper with its security features being better attached to the same inasmuch as instead of being merely adhered to one of the faces thereof, they are held by some of the paper's pulp fibrils.
- We feel that the description need be extended no further for any expert in the art to grasp the full scope of the invention and the advantages it offers.
- The materials, shape, size and layout of the elements may be altered provided that this entails no modification of the essential features of the invention.
- The terms used to describe the invention herein should be taken to have a broad rather than a restrictive meaning.
Claims (6)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES9102661 | 1991-11-28 | ||
ES09102661A ES2060488B1 (en) | 1991-11-28 | 1991-11-28 | INSTALLATION FOR THE MANUFACTURE OF SAFETY DOCUMENTS AND SAFETY DOCUMENTS OBTAINED WITH SUCH INSTALLATION. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0544611A1 true EP0544611A1 (en) | 1993-06-02 |
EP0544611B1 EP0544611B1 (en) | 1997-05-07 |
Family
ID=8274327
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92500157A Expired - Lifetime EP0544611B1 (en) | 1991-11-28 | 1992-11-27 | Installation to make security documents and security documents made in such an installation |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0544611B1 (en) |
DE (1) | DE69219564T2 (en) |
ES (1) | ES2060488B1 (en) |
MA (1) | MA22718A1 (en) |
MX (1) | MX9206877A (en) |
UY (1) | UY23512A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8100334B2 (en) | 2006-08-08 | 2012-01-24 | Arjowiggins | Security member having a relatively small format and comprising a through-hole and sheet comprising the same |
DE102012212529A1 (en) * | 2012-07-18 | 2014-01-23 | Voith Patent Gmbh | Security paper-flow system |
WO2014033658A1 (en) | 2012-09-03 | 2014-03-06 | Arjowiggins Security | Method for authentication based on biosourced material content |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123520A (en) * | 1964-03-03 | Werlaid sheet | ||
CH435962A (en) * | 1964-01-23 | 1967-05-15 | F Springuel Paul | Method for controlling paper uniformity across a paper web |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3601114A1 (en) * | 1986-01-16 | 1987-07-23 | Gao Ges Automation Org | METHOD FOR PRODUCING SECURITY PAPER WITH STORED SECURITY THREAD |
-
1991
- 1991-11-28 ES ES09102661A patent/ES2060488B1/en not_active Expired - Lifetime
-
1992
- 1992-11-27 EP EP92500157A patent/EP0544611B1/en not_active Expired - Lifetime
- 1992-11-27 MX MX9206877A patent/MX9206877A/en not_active IP Right Cessation
- 1992-11-27 DE DE69219564T patent/DE69219564T2/en not_active Expired - Fee Related
- 1992-11-27 MA MA23008A patent/MA22718A1/en unknown
- 1992-11-30 UY UY23512A patent/UY23512A1/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3123520A (en) * | 1964-03-03 | Werlaid sheet | ||
CH435962A (en) * | 1964-01-23 | 1967-05-15 | F Springuel Paul | Method for controlling paper uniformity across a paper web |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8100334B2 (en) | 2006-08-08 | 2012-01-24 | Arjowiggins | Security member having a relatively small format and comprising a through-hole and sheet comprising the same |
DE102012212529A1 (en) * | 2012-07-18 | 2014-01-23 | Voith Patent Gmbh | Security paper-flow system |
WO2014033658A1 (en) | 2012-09-03 | 2014-03-06 | Arjowiggins Security | Method for authentication based on biosourced material content |
Also Published As
Publication number | Publication date |
---|---|
EP0544611B1 (en) | 1997-05-07 |
ES2060488B1 (en) | 1995-12-16 |
ES2060488A2 (en) | 1994-11-16 |
DE69219564T2 (en) | 1997-09-11 |
UY23512A1 (en) | 1992-12-21 |
MX9206877A (en) | 1993-12-01 |
MA22718A1 (en) | 1993-07-01 |
ES2060488R (en) | 1995-06-01 |
DE69219564D1 (en) | 1997-06-12 |
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