Typical substances and protection elements for control of documents, securities, banknotes, packaging and products

 

(57) Abstract:

Conductive characteristic of the substance in the form of a conducting polymer is intended for introduction into the canvas paper pulp documents, securities and banknotes to create in paper paintings incorporated elements of the protection and control of documents, securities, banknotes, packaging and products or for connection with a support material for the manufacture of protective elements. Typical substance is polyethylenebutyleneglycoladipinate (PEDT/PSS). It may contain additional substance, which is visually perceived by a human pigment, optically active or be activated pigment or pigment with magnetic properties. PEDT/PSS is in a water sign in the field of embossing imprint or on it, locally or uniformly distributed in the web of paper pulp or canvas paper pulp, may be associated with the film element protection, be inserted in the canvas paper pulp. The technical result is to increase the degree of protection against forgery. 27 C.p. f-crystals, 12 ill.

The present invention relates to typical substances used for elements of the protective marking of domobrani.

In the paintings of paper pulp for production of documents, securities, banknotes, packaging and goods provided put them in typical substances for improving the protection against forgery. However, used still situative substances currently available that allows counterfeiters to fake made of them signs of protection.

In this regard, in the European patent document 753623 described protective sheet with the conductive element. Protective sheet consists of a carrier matrix of the fibrous structure, and the electrically conductive element is a protective strip in the form of a foil. The foil coated with the conductive polymer from the group of polythiophenes. Electrically conductive polymer is applied on the film in the liquid state or in the form of a dispersion.

In U.S. patent 5112672 described the document with security elements in the form inherent in it conductive protective threads. The security thread is a metallic coating, which is provided with a conductive polymer for bridging gaps in coverage.

In U.S. patent 5419424 presents a device for controlling the protective strips in the notes, is equipped with a sensor with electrodes, which espousal manufacturing of counterfeit documents, and how to control them. The documents contain a grid of metal wires with contacts at the points of intersection.

In the European patent document 839950 described by way of input substances in the moving fibrous web. Substances injected into the suspension of pulp in the process of filling on the net or to him. The input is carried out in several places, separated by the width of the fiber fabric, and at least in one place it is produced periodically.

In this situation, in order to create technological hurdles for counterfeiters have known complex solutions using siteaction typical substances. These include the decision on the patent document, the Federal Republic of Germany 19653423, according to which, in addition, use of the light absorbing characteristic of a substance that is not visually perceived by a person. In the control process under the action of infrared radiation displays the images with prominent local passes.

Further, for increasing the degree of protection against forgery known application of characteristic substances on the paper web with a certain distribution, which allows to make a machine-readable indication of the authenticity of the document. Thus, according to VA, which are superimposed on the visible image in the form of linear marking. Due to their physical properties of the used characteristic substance shall be recognized by a machine. Among these physical properties is called the conductivity, however, the document is not disclosed this characteristic substance beyond visual recognition.

Currently used for banknotes sign of protection made in the form of a film coating, which consists at least of a film substrate and a deposited layer of metallization. The so-called protective strip embedded in the paper web either directly or with Windows. Initially such protective strips with the inclusion of recognizable non-plated areas in the form of numbers or letters were only used for visual inspection. In order to improve the protection against forgery, we investigated the possibility of additional control of the conductivity of the metallization. The development of this area was hampered by the fact that, on the one hand, in circulation banknotes are subjected to intense mechanical deformation in the hands of users, which is folded and closed the banknote and the cash machines and calculating machines that bend. On the other OI the load from the tension and bending. Consequently, the metallization appear randomly distributed in the hair breaks, making the measurements unreliable and not giving repeatable results. However, for protection against forgery of the characteristic features you want in a control device of the banking machine was checked not only the presence of the metallization, but was determined the authenticity on the basis of certain measured values of electrical conductivity. This problem is not solved completely and also due to decisions by patent document FRG 4344553 and European patent document 659587, where instead of applying metallization features introduction to high vacuum printing inks with the properties of metal.

Since the electrical conductivity is one of the essential properties of metals, it is easy to suppose that the counterfeiters have an idea about the parameter conductivity metallization. Moreover, currently there is a sufficient range of widely available technological resources to produce adequate metallization, including her curly performance, with fake sign of protection in the documents, securities, banknotes, in the packaging or goods. However, due to the fact that the conductivity of the two is the shields. In addition, the difficulty is that visible to the human eye metallization is not altered in its properties, as for most people it should serve as a constant and always the same recognizable sign of protection. And finally, in the secret of this visually recognizable sign of protection is devoted to a relatively large number of people associated with its manufacture and control, so that a potential hazard is created already one of this uncertainty range is dedicated to violence.

The problem to which the present invention is directed, is to offer typical conductive substance, which can eliminate the above mentioned shortcomings. Further, the invention is directed to establish such a characteristic of a substance that increases the level of protection against counterfeiting in connection with the need to create additional easy change of sign of protection, which has attracted less attention than visually recognizable metallization, as well as in the creation of the sign of protection, which can be located in different places where it will not be recognized, and where its presence can only be set with high precision is the second painting directly or in conjunction with other security elements, such as security threads.

In accordance with the invention the solution of this problem is achieved by the distinguishing signs on p. 1 of the claims, as well as signs, which are set out in dependent clauses and describe special embodiments of the invention. The scope of protection of the invention includes both the individual characteristics and features of the invention disclosed in the claims and the description, and various combinations of characteristics and features, which characterize embodiments of the invention.

The invention offers the advantage that was found by the inventors of the substance, polyethylenebutyleneglycoladipinate (PEDT/PSS) to provide the protected document hidden amenable to detection of a sign of protection, which is invisible to the human eye, and its uniform distribution or a local presence is out of control. At the same time this solution in an unexpected way gave the advantage of possible input characteristic substances and security features in the paper web by means of a continuous, rapid and cost-effective way. In addition, polyethylenebutyleneglycoladipinate (PEDT/PSS) as the substance has a beautiful ha is s implementation of the present invention will be described more fully hereinafter with reference to the accompanying drawings, are:

Fig. 1 schematically depicts in side view and top longitudinal grid paper machine to illustrate how local injection characteristic of substances with the formation of linear forms,

Fig.2 - side view and top mesh cylinder to illustrate the same way,

Fig. 3 depicts a diagram of the signal during the passage of the sensors over the bill with watermarks,

Fig.4 diagram of the switching signals from sensors

Fig. 5 schematically depicts in side view the platen for stamping watermarks roller for the transfer characteristic of the substance,

Fig. 6 depicts a diagram of the signal conductive watermark in paper,

Fig. 7 schematically depicts a local application or introduction of characteristic substances in the paper web,

Fig. 8 depicts a diagram of a signal at the detection of local characteristic substances,

Fig. 9 - film structure with a carrier film, metallization and an additional layer of conducting polymer,

Fig.10 - another film structure with a carrier film, metallization and an additional layer of conducting polymer,

Fig. 11 - film structure with two carrier films and Dnieper,

Fig. 12 - film structure with two carrier films, one layer of metallization and one more layer of conducting polymer.

In Fig. 1 is a schematic representation of the side view and the top of the paper machine containing the longitudinal grid 1, inlet box 3, the discharge tube 17, the device 18 controls the exhaust pipe 17, an automatic valve 19 in each outlet pipe 17 and the pump 20 to provide a circular circulation characteristic of the substance in the container 26 to stock typical substance intended for local input. Presents also the control area 14 containing the characteristic substance.

In Fig. 2 is a schematic representation of the side view and the top of the paper machine containing the grid cylinder 2 and the input device 4, and the local control area 14, the discharge tube 17, the device 18 controls the exhaust pipe 17, an automatic valve 19 in each outlet pipe 17, the pump 20 to provide a circular circulation characteristic of the substance and the container 26 to stock typical substance intended for local input.

Fig. 3 depicts a diagram of the signal in the form of a diagram of the voltage U as a function of number of Cana the number distribution characteristic of the substance 6 and embossed conductive region 24. Schematically shows the channels 1-14.

Fig. 4 depicts a diagram of the switching signals from the optical scanning sensors 10, capacitive scanning sensors 11 and optical sensors 13, designed to activate the capacitive scanning sensors 11 in the control sheet materials with local control zones 14.

Fig. 5 schematically depicts in side view embossing roller 5 with the segments 25 of the stamping and the roller 7 to the transfer characteristic of the substance and conductive control zone 9 in the form of a watermark, the container 16 to a characteristic of the substance and pinch roller 27.

Fig. 6 depicts a diagram of the signal in the form of a diagram of the voltage U as a function of number of channels in the control conductive control zone 9 in plain paper, do not have a distinctive substance.

Fig. 7 schematically depicts a process control after local injection characteristic of the substance in the paper web 6. Control is capacitive scanning sensors 11. Also shown is the optical sensors 13 to activate the sensors 11 and various local control zones 14a, 14b, 14C.

Fig. 8 depicts a diagram of signals 23 detection of local zones of characteristic substances eat metallization 29 and the additional layer 30 of electrically conductive polymer.

Fig. 10 depicts another film structure with a carrier film 28, the metallization layer 29 and the additional layer 30 of electrically conductive polymer.

Fig. 11 depicts a film structure with two carrier films 28, 28' and one layer of metallization 29, and for each carrier film 28, 28' applied an extra layer 30 of electrically conductive polymer.

Fig. 12 depicts a film structure with two carrier films 28, 28', one layer of metallization 29 and one more layer 30 of electrically conductive polymer.

Example 1

In Fig.1 and 2 shows the method of application was found to be used as a characteristic of a substance polyethylenebutyleneglycoladipinate (PEDT/PSS) using a metering device, just installed over the paper web 6. A necessary condition for the uniform supply of the metering device characteristic ingredient is the provision of pumps 20 a constant circulation of paper pulp in the entire pipeline system, including the container 26 to a characteristic of the substance subject to local implementation. Using the appropriate location of the metering devices, each of which in this case consists of a discharge tube 17 is it. However, depending on the control dosing devices form a linear continuous control zones 14a, intermittent control area 14b, or a dotted reference area 14C, shown also in Fig.7. When cutting the fabric 6 paper pulp into sheets have local control area 14 with the specific substance. These zones may span the entire width or along the length of the sheet or to take the length or width of the sheet. The width of lines or parts of lines must correspond to the resolution of the scanning sensors 10, 11. Preferably the width of the lines is chosen equal to 2 mm

The use of conductive polymers has the advantage that these polymers have good compatibility with the other components of paper pulp. Due to this, their integration with the paper material is substantially simplified in comparison with typical solid substances, as electrically conductive polymers in the liquid state are also available. Concentrations allow you to get almost transparent conductive marking.

Example 2

In accordance with Fig.5 using a roller 5 for stamping and roll 7 to the transfer characteristic of the substance on the paper of conductive control area in the form of a watermark 9.

Example 3.

In Fig. 1 and 2 shows that the control zone 14 in line 6 paper pulp is controlled on the subject of uniform or local presence of characteristic substances. The obtained result of the control is affected through device 18 controls, automatic valves 19 in the exhaust pipe 17.

As already indicated, in Fig.3, 4, 6, 7 and 8 shows the process control in various embodiments and corresponding diagrams of signals.

Fig. 3 illustrates in relation to the water mark in the field of embossed imprint of 24 how to control the conductivity of the document is used as the reference values for fine control of the execution of the watermark.

The document with the watermark goes in the direction of the arrow sequentially through the optical scanning sensors 10 and further through the system capacitive scanning sensors 11. The corresponding diagram of the signal shows a consistent line voltage optical scanning sensors 10 and capacitive scanning sensors 11, represented here as a function of number of channels.

Fig. 7 and 8 illustrate the control characteristic of the substance, nanosensor the second area 14a with a continuous line coverage of the characteristic of the substance. When passing through the control device, which consists of optical sensors 13 and capacitive scanning sensors 11 are diagram 23 in the form of a continuous line according to the voltage U=f(t).

In Fig. 7b, the coverage characteristic of the substance in the control area 14b is interrupted with a uniform pitch. In the process of the control gain figure 23 dependence U= f(t) in the form of a line with the appropriate uniform power surges.

In Fig.7C floor in the control zone 14C has breaks with an uneven step. This is also reflected in the corresponding figure 23 signal.

Example 4.

Next, with reference to the drawings according to Fig.9-12 will explain the application of the conductive characteristic of the substance with the introduction of film designs in canvas 6 paper pulp.

Film design, which is concluded to be the introduction to the paper web protection element contains the carrier film 28, 28', for example, of polypropylene, preferably a thickness of 40 μm. The metallization layer 29 deposited on the carrier film 28, 28', for example, sputtering, has an additional thickness of about 2 microns.

Metallization 29 contains non-plated areas, for example, in the form of letters or figures who AMI to the edge of the carrier film 28, 28'. On the other side on the carrier film 28, 28' applied an extra layer 30 of PEDT/PSS, special PEDT/PSS (polyethylenebutyleneglycoladipinate) brand SRR, a thickness of 1 to 2 μm. Part of the brand SRR also includes polyethylenebutyleneglycoladipinate well as N-methyl-2-pyrrolidone, isopropanol and silquest And 187. While the additional layer 30 causes a slight increase in the overall thickness. Thus, film design, which is introduced in the paper web as an element of protection and contains a characteristic substance according to the invention, due to its slightly altered thickness has no effect on documents or banknotes made of paper web, and this change is invisible even in the large stack of documents or banknotes. In addition, in place of the bookmark element of protection is not the weakening of the document due to the increased thickness.

Deposited on the carrier film 28, 28', for example, a sputtering method, a metallization layer 29 has a thickness of only a few atomic layers and therefore, depending on the surface structure of the carrier film is relatively fragile. When the jam, a bend or kink in it appear randomly the s metallization 29. In contrast, the additional layer 30 has flexibility and elasticity, and compared with the metallization 29 has a much higher ability to stretch depending on the surface structure of the carrier film 28, 28'. Thus, when you bend, break or jam, for example, banknotes also not damaging an additional layer 30. Now in the control device, which, for example, there are at ATMs, for a given area of the protection element determines the magnitude of the conductivity as metallization 2, which is known from the prior art and may contain hairline cracks, and parallel to it, the additional layer 30 is relatively high-ohmic resistance.

Example 5

In Fig. 9 shows the preferred exemplary embodiment of the film structure containing a characteristic substance according to the invention as an element of protection, for example, in the banknote. The design contains a carrier film 28, one side of which is coated with the layer of metallization 29. On the other side of the carrier film 28 carries an additional layer 30 of electrically conductive polymer.

The additional layer 30 on the carrier film 28 is carried out using a conventional t is > applied metallization 29, for example, sputtering.

Of course, it is also possible to apply an extra layer 30 of electrically conductive polymer after deposition, metallization 29 on the carrier film 28. In such a film structure additional layer 30 has a somewhat protective effect on the metallization 29.

Example 6

Fig. 10 depicts another preferred exemplary embodiment of the film structure with a characteristic substance according to the invention. Between the carrier film 28 and the metallization 29 is an extra layer 30 PEDT/PSS as a binder layer. The location of the additional layer 30 as a binder layer does not impair the adhesion between the carrier film 28 and the metallization 29. The additional layer 30 can be applied to improve the adhesion between any two other films or layers. However, its use as a binder layer between the carrier film 28 and the metallization 29 has the advantage that the relatively fragile metallization 29 to much more additional elastic layer 30 can withstand higher mechanical loads than with the direct coating on the carrier film 28.

Example 7

Fig. 11 depicts the film design is th at it metallization 29. Metallization 29 is covered by another carrier film 28'. It serves, for example, to protect the metallization 29 in cases where the security thread with the Windows partially embedded in the paper and subjected to high loads. Increased loads during the technological process of manufacturing documents provide additional rationale for the use of additional carrier film 28'. At least one of the supporting films 28, 28' is provided with an additional layer 30 of electrically conductive polymer.

Example 8

In the example of execution according to Fig.11 both bearing films 28, 28' is provided with an additional layer 30, and Fig. 12 presents a film structure in which only one of the supporting film 28 is provided with an additional layer 30 of electrically conductive polymer.

The invention is not limited to the use of a characteristic of a substance as an additional layer 30 in film design. Typical substance may be injected into the paper web as an element of protection in any configuration.

Example 9

To improve the protection against forgery along with a characteristic conductivity may provide other security features and create their combinations. So, naprimer, and also such characteristic features that can be detected only with special radiation sources and optical sensors. In addition, the invention also applies to the combination of electrical conductivity with such additives, which are magnetic. As a preferred example of application, you can specify that the supplements with magnetic properties can be hidden under visually identifiable characteristic dyes. The potential falsifiers is not known whether the document substance with magnetic properties, particularly in cases where the applicable amount is small and the manifestation of the magnetic properties cannot be determined explicitly.

Along with the presence in PEDT/PSS incremental substances with optical properties the invention also extends to the fact that the extension of the substance with the optical properties are located in the electrically conductive polymer in such a way that it creates an optical encoding, for example in the form of a color image, which can be read and analyzed by the control device. The same applies to additional substances with magnetic properties, which at raspolojena.

1. Conductive characteristic of the substance in the form of a conductive polymer to be injected fabric (6) paper pulp documents, securities and banknotes to create in paper canvases embedded security features to control documents, securities, banknotes, packaging and products or for connection with a support material for the manufacture of protective elements, characterized in that the characteristic substance is polyethylenebutyleneglycoladipinate (PEDT/PSS).

2. Conductive characteristic of the substance under item 1, characterized in that the conductive polymer used in the state are not separated from their environment.

3. Conductive characteristic of the substance under item 1, characterized in that the electrically conductive polymer is in used condition stands out from its surroundings.

4. Conductive characteristic of the substance according to any one of paragraphs. 1-3, characterized in that the characteristic substance is a conductive polymer, the surface resistivity of which is determined by the method of application, method of administration and/or its composition.

5. Conductive characteristic of the substance according to any one of paragraphs. 1-4, from the creation by p. 5, wherein the additional substance is a visually perceived by a human pigment, optically active or subject to intensify the pigment, or pigment with magnetic properties.

7. Conductive characteristic of the substance under item 1, characterized in that PEDT/PSS is in a water sign in the area embossed imprint (24) or on it.

8. Conductive characteristic of the substance under item 1, characterized in that PEDT/PSS locally or uniformly distributed in the web of paper pulp or locally, or is evenly on the canvas paper pulp.

9. Conductive characteristic of the substance under item 1, characterized in that PEDT/PSS associated with film protection element, be inserted in the canvas paper pulp.

10. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that PEDT/PSS applied at least locally, preferably in the form of a printed image on an element of protection, subject to introduction into the fabric of paper pulp.

11. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that used as part of the protection film design, which is held to the edge of the carrier film (28), provided with an additional layer (30) of PEDT/PSS, and film design partly or fully incorporated in the paper web.

12. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that the additional layer (30) of PEDT/PSS incorporated as a binder connecting means between the carrier film (28) and between the supporting film (28) and the metallization (29) serving as the protection film design, as well as connecting the connecting means between the film structure and the paper.

13. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that on one side of the carrier film (28) applied metallization (29), and on its other side caused additional layer (30) of PEDT/PSS.

14. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that on one side of the carrier film (28) applied metallization (29) and the metallization (29) applied an additional layer (30) of PEDT/PSS.

15. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that printed on one side of the carrier film (nesen additional layer (30) of PEDT/PSS.

16. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that the additional layer (30) of PEDT/PSS performed with a higher value of elasticity than the metallization (29) supported on one of the carrier films (28, 28').

17. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that the characteristic substance is a containing PEDT/PSS printing ink.

18. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that PEDT/PSS before his connection with the paper associated with at least one film, one of solidified lacquer layer, one reflecting layer and one protective layer.

19. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that PEDT/PSS made with the possibility of drawing on the carrier material by means of printing, spraying or dipping.

20. Conductive characteristic of the substance under item 1 or 19, characterized in that the carrier material is a paper sheet or film intended for introduction into the paper web.

21. Conductive characteristic vishestoyachie means or the first coating layer.

22. Conductive characteristic of the substance according to any one of paragraphs. 1, 20 and 21, characterized in that the carrier material is a packaging or product.

23. Conductive characteristic of the substance according to any one of paragraphs. 1, 20 and 21, characterized in that the carrier material forms a protection element that is visually recognized by a person.

24. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that PEDT/PSS deposited on the carrier material as at least one associated surface.

25. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that PEDT/PSS deposited on the carrier material in the form of the surface separated by at least one break.

26. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that PEDT/PSS deposited on the carrier material in the form of at least one line.

27. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that PEDT/PSS deposited on the carrier material in the form of a dotted line.

28. Conductive characteristic of the substance according to any one of the preceding paragraphs, characterized in that chooseth, preferably on its electrical conductivity and optical characteristics.

Priority points:

15.06.1999 - PP. 1-6,9 and 18-28;

12.08.1998 - PP. 7 and 8;

27.03.1999 - PP. 10-17.

 

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