Security paper with serial number

FIELD: printing industry.

SUBSTANCE: invention is related to security paper, in particular to banknote, having individual mark, which is applied at least once on face and reverse side of security paper. At least one of individual identifiers applied on face and reverse side of security paper is applied onto security paper by contactless method. Besides application of individual identifiers on face and reverse side of security paper is carried out by means of single-sided treatment of security paper.

EFFECT: high degree of security paper protection, with minimum production costs.

32 cl, 16 dwg

 

The invention relates to a valuable document, in particular banknote with private label, for example, with a serial number. In addition, the invention relates to a method of manufacturing such a valuable document.

Valuable documents, such as banknotes, stocks, bonds, certificates, vouchers, checks, tickets and similar documents that usually provide private label, such as a serial number. To increase the reliability of this label is often applied on the valuable document several times. For example, the number on the bill put twice to uniquely identify each half of the banknote. Here these two sets of figures are usually identical.

The degree of reliability of the traditional numbering relatively low. For example, the numbering you want white or at least light background, which, moreover, should not be performed by a method of gravure printing, as otherwise the remains of the printing ink can get on numerovannie device and disrupt their functioning. Accordingly, considering the deviation in the register, you must allocate enough space for numbering.

From the patent document US-A-4234214 known banknote, provided with a readable code consisting of letters and numbers that make up a sequential serial number for the unambiguous identification bankn who you are. Readable code is applied to the first position on the bill in the form of a positive image, and the second position in the form of a negative image with polychromatic background. The manufacture of such a negative or inverse image of the serial number is quite complex as it needs to perform a number of technological operations.

Taking into account the foregoing, the purpose of this invention is to create a valuable document of the type indicated above, which is simple to manufacture and has a high degree of protection against forgery.

To reach this aim through valuable document having the characteristics disclosed in the independent claim. The manufacturing method disclosed in the claims, United by a single inventive concept. Options for the development of the present invention are objects of the dependent claims.

According to this invention the individual label, for example the serial number, is applied at least once on the front and on the reverse side of the valuable document; and at least one of the individual identifiers printed on the front and back side, put on a valuable document in a contactless manner. In the context of this invention the label itself, for example a specific serial number is always called "label"and a separate mnogo atno done its variants are referred to as "identifiers". All of the different identifiers represent the same label, for example the same serial number, even if they are executed with fonts of different sizes or have different graphic design. In some embodiments of one of the tags may be provided with an individual additional elements, such as additional reference number or symbol.

This two-way marking valuable document reduces the size of a space on each side and thus increases the freedom of the designer in the design. When traditional methods of letterpress printing double-sided labeling can be performed using only the second cycle of the machines and is therefore too costly, since the numbering of banknotes numerovannie devices, switchable mechanical or electro-mechanical means, requires a high cost of installation and maintenance.

In addition, the use of contactless method for marking allows you to add numbering, or, in General, private label new security features and simultaneously compensates for inherent numbering method of letterpress printing limitations. For example, there is, in particular, the ability to move away from the traditional linear digital configuration or replace a digit character codes, occupying the mi considerably less space for example, two-dimensional codes, such as the so-called codes in the form of a data matrix.

Thus, it is possible largely to eliminate the high costs of installation humeroulnar devices, since the non-contact method, the location identifier can be determined by computer control. In particular, when using vector laser encoders provide a large range of adjustable stroke length. High costs in time and labor for maintenance numerovannie devices are eliminated or significantly reduced.

In a preferred implementation of the present invention at least one of the individual identifiers printed on the value document by exposure to the beam. This type of non-contact marking using laser, described in detail below, provides for the designer freedom of identifiers in any place on valuable document, even in traditionally almost inaccessible border zone of the valuable document. As for the tactile tangible version of IDs, it has the additional advantage, as this allows quick and easy authentication ID as a sign of protection, as, for example, under normal payment transactions of the banknote holding and touching preimushestvenno over the edge.

Preferably, on the front and/or back side of the valuable document was located at least one sensitive to laser radiation plot ID, through which the laser beam applied to the individual identifier. In preferred implementations of the valuable document according to this invention there on the front and back sides are opposite parts of the identifier containing the agreed IDs. If the labels on opposite sites ID performed simultaneously, for example, the same laser beam provides an ideal combination. Thus identifier forms a valuable marker for authentication, which is difficult to forge.

Mainly at least one of the parts of the identifier is formed by a layer to record sensitive to laser radiation is applied on the valuable document. This layer for recording may contain, for example, a printed layer, in particular a layer of gravure printing, a layer of screen printing a layer of printing ink with special effects, a layer of absorbing ink or printed layer consisting of a mixture of different printing inks and absorbing printing ink or other absorbing substances. In other embodiments of this sensitive to laser the radiation layer for recording includes a metal layer or a printing ink, contains additives that absorb laser radiation, for example graphite or soot. In particular, the layer can be formed by a protection element, equipped with a metal strip or insert. This element may also contain additional layers, such as a plastic layer, which has a diffraction structure in the form of relief.

In addition to these opportunities create parcel ID through application layers, as an alternative or in addition thereto at least one of the parts of the identifier may also be formed is sensitive to laser radiation plot for the entry in the base material of the valuable document. This is sensitive to laser radiation plot for recording can be created through the introduction of an absorbing species in the material basis of the valuable document. Here are examples of absorbing substances, which can be used are Tio2the particles of carbon black, pigments with an interference effect and absorbers of infrared radiation.

At least one of the identifiers preferably exhibits a visible color change, in particular identifier is black. This color change can be provided or enhanced, for example, by making appropriate additions to the parts of the ID, which is provide a color change when exposed to laser radiation. These additives may be contained in the deposited layers for recording and areas for recording on the substrate. The change of color can be achieved by a thermal image or caused by other mechanisms of change in color, such as chemical transformations. Color change thermal image can be effectively activated by the presence of the absorbing species. Can also be ensured that the top layer of paint has not entered into reaction with the laser radiation and the color change occurred only in the underlying layer of paint. Instead of the visible layers of paint can be used not visible to the eye lucky.

According to another private implementation variant at least one of the identifiers has tactile tangible label with a relief structure. Making tactile tangible labels can be achieved by laser and with proper selection of the composition of the irradiated laser material, and exposure parameters, for example, type and wavelength of the laser used, the output power of the laser and the relative speed of the laser and valuable document. On the one hand tactile tangible labels make it difficult to fake a valuable document, and on the other hand tactile labels contain important information for the blind or visually impaired people. For example, in addition to the serial number in the form of tactile tangible labels can also be printed face value of the banknote.

Here the parameters of the inscription, as well as the type and composition of the material on the site ID can be selected so that the ID was implemented and tactile tangible label, and color change. However, there is also the possibility of creating tactile tangible labels without darkening ID. If, for example, securities with a label again to moisten after laser tactile tangible darkened marks, gray-black color disappears, and the tactile, tangible mark remains, but becomes barely visible or completely invisible.

In another preferred implementation of the valuable document according to this invention at least one of the identifiers is formed latent image. Here, the term "latent image" refers to the structure of the image, which is virtually invisible under normal conditions of observation, and which becomes visible only when using special means, such as a microscope or a polarizing filter, or under special observation conditions, for example under certain precisely defined angles or when illuminated with UV radiation.

It is preferable that the latent image was formed by means of laser exposure on the site for the entries on the basis of the valuable document, or caused the Loy for recording. For example, a valuable document may be locally variable surface structure, locally variables polarization properties or variables locally luminescent properties on the plot of the latent image.

In another preferred implementation of the present invention at least one of the individual identifiers printed on the value document in a non-contact method of inkjet printing. Here, under the method of inkjet printing understand how the methods of continuous inkjet printing, and drip-pulse methods of inkjet printing.

In the first group, these methods form a continuous spray paint and feed it under pressure through a small nozzle, resulting in a stream containing up to 120000 same drops per second. These droplets are electrically charged and passed through an electric field through which they are sent to the appropriate place on the product. With drip-pulse methods, inkjet printing, which, inter alia, piezoelectric and bubble jet printing, the ink passes through the printhead only when you really need to print a dot. The principle of both methods is the same: the camera with the printing ink is in front of the nozzle. By reducing the volume of this camera printing ink out of the nozzle.

Labeling with the particular inkjet printing restricts the location of the markings within the track, along which form a valuable document moves the inkjet heads, but in this way it becomes possible to use a matrix or barcode and other non-traditional identifiers. Since the dimensions of inkjet heads smaller than a printing unit for numbering, they can also be installed on existing machines, so that they can put the ID on the reverse side of the canvas.

According to another preferred implementation variant, at least one of the individual identifiers to be applied on the valuable document by way of letterpress printing. To this traditional ID then add one of the above identifiers done in a contactless manner.

Particularly preferably, the individual identifiers have been printed on the front and reverse with one and the same side of the valuable document. Thus can be made two-sided ID with a small cost of equipment and low maintenance costs. Preferably, each of the identifiers applied to the front and back side of the valuable document, was read in the forward direction. For this purpose, if necessary, the identifiers applied from the front side should be printed mirrored so that they cialisw forward direction when viewed from the reverse side.

Private label, in particular, contains the serial number, bar code or matrix code. However, it can also contain additional graphics or additional text, such as a signature or handwritten number. The content label may include not only the sequence number, but also other information such as the date, time, location, and designation of the party or labels for special purposes. At least one of the individual identifiers may be encrypted in the form of a cryptogram, or can contain a check digit or other correction codes.

In particular, when using vector laser encoders identifier may take the entire surface of the valuable document, or to cover different sub-sections of the valuable document. It can be made in the form of combinations of characters arranged horizontally or vertically, the cross, in the form of a matrix, triangle, waves, circles or arcs (for example, in the corner of the banknote) or have any other shape. Preferably, at least one individual identity was applied in the form of waves, circles or arcs.

When marking with computer control can be realized additional new effects in the numbering of notes. For example, each of the halves digits of the serial number can be the ü printed on two spatially separated areas for recording, so fully read the serial number is obtained only after folding banknotes properly, which resulted in two sections for recording become adjacent to one another.

The invention also includes a method of making a valuable document having an individual label, which is applied at least once on the front and on the reverse side of the valuable document. Here at least one of the coating on the front and back side perform a contactless manner. Preferably individual identifiers to be applied on the face and back of the valuable document with the same side of the valuable document.

At least one of the individual identifiers are preferably applied on the valuable document in a non-contact method of inkjet printing. As an alternative or in addition thereto at least one (additional) individual identifiers applied through impacts on valuable document of the laser beam. Here, the exposure parameters are preferably chosen so that the generated laser beam ID showed visually noticeable change in color or contrast, in particular formed darkening. If desired, the exposure parameters can also be chosen in such a way that the identifier generated by the laser and is the receiving, acquired tactile tangible relief structure or to the ID generated by the laser radiation, formed the latent image visible only when the use of special tools or special conditions of observation.

In a preferred variant implementation before laser exposure on the valuable document is applied one or more layers for recording, which perform one or more individual identifiers. Here as a layer for recording can be applied by means of translation, in particular, a printed layer or a multilayer security element.

As the laser is preferably used infrared laser with a wavelength in the range from 0.8 to 3 μm, in particular using a laser YAG garnet with neodymium (Nd:YAG).

It is advisable that the speed of conduction of the laser beam on the basis of the valuable document at the time mark was more than 500 mm/s, preferably greater than 1000 mm/s, especially preferably have a speed of more than 2000 mm/s, which will provide high speed processing when printing important documents.

Further examples of implementation and advantages of the present invention is described below with reference to the drawings, in which to facilitate their understanding of the scale and proportions are not met.

The drawings show:

Figure 1 - schematic representation of the banknote with worsthorne numbering;

Figure 2 is a cross section of the banknote according to the example implementation of the present invention;

Figure 3-5 - cross section of banknotes according to other example implementations of the present invention;

Figure 6 is a cross section of fundamentals of banknotes, for example which illustrates the application of the label onto the canvas from the reverse side;

7 - bill according to another example implementation of the present invention, in which laser marked identifier is present along with the traditional number;

Fig - banknote according to another example implementation of the present invention, on the reverse side of which has a numbering caused by the way inkjet printing;

Figure 9 and 10 banknotes according to other example implementations of the present invention, having at least one tactile tangible label; each of banknotes presented in section;

On 11 and 12 of the banknote according to other example implementations of the present invention, on the front side which has a latent image; each of the bills presented in section;

Fig - bill containing combined transmission image (a) diagram of the combined transmission image when observed in transmitted light and (b) the layer structure of the banknote along the line B-B;

Fig - schematic representation of vector laser encoder; and

Figure 1 - schematic representation of vector laser encoder to perform the labels on the form of the valuable document.

Now you'll see the description of the invention on the example of the banknote. Figure 1 presents a schematic representation of the banknote 10, on the front side 12 and back side 14 which has a numbering 13 or 15 in the form of a serial number of the banknote. Both numbering, 13 and 15, shall constitute one and the same serial number; in this example implementation is a sequence of digits "1234".

As the numbering 13 on the front side and numbering 15 on the back caused by the action of the laser beam from the front side 12 of the banknote, so construction costs for a two-way application of the rooms are small. In the present example, the numbering 13 on the front side is formed by the shaded area on the valuable paper of the banknote 10. Numbering 15 on the reverse side are formed by the areas in which removed the metal on metal in other areas of the insert 16, for example on the bill of the item or the label with a diffractive optical structure, and thus, due to the high contrast numbering stands out against the background of the metallic coating.

Will now be given a more precise description of the structure and method of manufacturing banknotes 10 with reference to figure 2. Banknote of 10 has, for example, the base 20 of the fiber is East of paper, for example, a paper from pure cotton fibers or of a mixture of cotton and synthetic fibers. However, it is also possible banknotes consisting of fully plastic film. To be able to put on the bill marks by irradiating an infrared laser, to a paper substrate 20 add material that absorbs infrared radiation; in this example implementation is TiO2in the result, on the front side 12 of the banknote formed area 22 for recording. For the same purpose on the reverse side 14 of the banknote 10 has an absorbent layer 24 for recording; in this example implementation is a holographic insert 16.

For applying the label front side 12 of the banknote 10 is exposed to radiation 26, 28 laser infrared range, such as pulsed or continuous laser YAG garnet with neodymium. At site 22 for recording the laser 26 is absorbed by the added absorber of infrared radiation, which causes local dimming 30 bases. Using the appropriate method of beam control, such as the management direction of the laser beam by means of a computer, you can easily perform the dimming 30 in the form specified serial number.

As the paper base 20, mostly transparent to the laser radiation yttrium aluminium garnet with h is a one, at least at a low intensity laser radiation, the incident radiation 28 laser passes (position 32) through the base 20 on the parcel layer 24 for recording and is absorbed only on the back side 14 of the banknote in the layer 24 for recording. The metal layer holographic insert 16 is locally destroyed by laser radiation or, in any case, so changes its optical properties that the observer becomes visible local change 34 color or contrast. To get the serial number 15, which is on the reverse side can be considered in the forward direction, the serial number is drawn from the front side of the mirror-reflected, it is easy to carry out under computer control beam.

In another example implementation figure 3 front and back side of the banknote 40 is equipped with absorbing layers 42 and 44, for example a printed circuit layers, and printing ink layer added absorbers of infrared radiation. As the basis of the banknote is also permeable to laser radiation, the color and/or contrast of both printed layers 42 and 44 can be changed by irradiation of the banknote from the front side in the form of proper numbering (46 and 48).

Figure 4 presents the development of the example implementation is shown in figure 3, in which the front side of the banknote there is additional the hydrated layer 50 for recording, located opposite the layer 44 to record on the reverse side on the section 52 overlap. On this plot 52 overlap by laser can be simultaneously performed consistent identifiers 54 in both layers 44, 50 for the entry.

It is clear that to achieve this goal layer 50 for recording must be formed so that this layer 50 for recording absorbed only part of the laser radiation, and the part passed through the base on the opposite side to the layer 44 for recording. Naturally, lots of layers 44, 50 for recording may have additional identifiers outside area 52 overlap, which is applied separately on the front and back side. Since the main feature identifier 54 is that their outlines are combined, attempt to simulate the irradiation of the banknote from the reverse side can be easily recognized as a forgery.

In a variant of the banknote 60 presented on figure 5, the sections 62, 64 for recording on the front side in the base 20 of the banknote is formed by adding a small amount of soot. The reverse side of the banknote 60 has a layer 66 for recording; in this example implementation, this silver screen layer for recording. Depending on appropriately selected laser parameters when applying labels on the front side of the banknote 60 may be implemented to only a part, namely the part which identificator 68 on the reverse side, which is applied by means of a laser beam of high power, at the same time manifested itself in the form of dimming 70 on the front side. In contrast, ID 72 on the reverse side, draw a low energy laser, not shown on the front side.

Although in the example implementations described before, the label on the back is always deposited using layer for recording, the ID on the reverse side can also be established on the site to write on a paper basis, as described with reference to Fig.6. The paper base 20, to which is added absorbers of infrared radiation irradiated from the front side 12 dark area 80 for the record, located on the back side 14 when the two laser beam 82 and 84 or appropriately split the laser beam is directed to the base 20 at an angle, so that two beams 82 and 84 overlap each other on a plot of 80 to record on the reverse side of the base. Through appropriately selected intensity of these rays can be ensured that the threshold dimming basics 20 was exceeded only at site 86 overlap of the two laser beams and, thus, this darkening appears only in the zone of 80 to record on the reverse side.

In the example implementation 7 the first numbering 92 printed on the front side of the banknote 90 cent the traditional way letterpress 96. The second numbering 94 on the back is also made from the front side (position 38) vector laser encoder, i.e., all devices required for the application of the rooms, can be placed on the front side of the banknote 90. Laser marked numbering 94 remains invisible from the front side of the banknote, as the base material does not respond to laser radiation or reacts at least not to the extent that manifested visible label.

Preferably, the numerator letterpress switched from one number to another is not mechanically, but rather electric. With this method may be provided for the correspondence between the numbering 92 on the front side and numbering 94 on the reverse side through addressing through a conventional computer unit. Instead of drawing rooms way letterpress numbering 92 may also be printed on the front side by way of inkjet printing.

On Fig depicted banknote 100 according to another example implementation of the present invention, in which the basis of the banknote is equipped with a numbering 102 caused by how high or inkjet printing on the front side (item 106), and the numbering of 104 printed on the reverse side of the banknote way inkjet printing 108 on the reverse side. Given the simple design of the heads, inkjet printing, the cost of which rudovanie print device additional jet head for applying numbering on the reverse side will be economically justified from the point of view achievable with this design flexibility. The numbering on the reverse side can also be performed by irradiating a laser from the back side. For example, for the implementation of this laser radiation from the front side can be transmitted through the optical waveguide on the opposite side, so that it also reaches the above-mentioned advantages of the liberty of addressing and variety of exposure.

In other embodiments of the present invention, the first of which is presented in Fig.9, at least one of their individual identity has tactile tangible labels 112, 114 with a relief structure formed by the laser beam on the basis of the banknotes 110. Without detailed explanations, education tactile tangible labels can be explained by the breakdown of the adhesive surface of the substrate 110 under the action of laser radiation. Fibrous composite is loosened and between the fibers having voids, probably due to the generated gas. Thus locally formed coarse fiber mesh, which is significantly above the original surface, but continues to be associated adhesive layer. When touching this ledge basics well feels very soft and almost velvety relief.

The height of the tactile tangible labels relative to the surface can be varied within a wide range through the choice of the parameters of the laser, the substrate and the speed of the laser beam relative to the banknote during irradiation. Usually choose a height in the range from 30 μm to about 100 μm. In addition to the formation of tactile tangible ledge fundamentals of laser radiation can also cause a color change, in particular dims the basis that shown by hatching on the tag 114. Whether you are darkening and if it is, what tone, depends on, in addition to the laser parameters, primarily on the composition of the substrate material.

In this example, the implementation of the first tactile tangible label 112 was formed under the action of laser radiation of low intensity, so here dimmable basis has not occurred. On the section of the layer 116 to record on the reverse side was used a laser of a higher intensity, so that the basis was formed darkened ledge 114 on the front side of the banknote, and a local change 118 color and/or contrast in the layer 116 to record on the reverse side. Change the color and/or contrast layer for recording is preferably darkening. As an alternative, under the influence of the laser radiation section 118 in the layer 116 for recording can also be vysvetlen.

Particularly effective is the combination of tactile tangible ledge 122 of the substrate with a smooth layer 124 for recording on the front side of the core is you, as shown in the case of banknotes 120 figure 10. Smooth layer 124 to record may, for example, be an element in the form of labels or strips, and these elements are preferably provided with a diffractive optical structure with a metal reflective layer. It is clear that such ID on the front side may also be combined with opposite him ID on the reverse side, for example, due to the presence of the corresponding layer for recording on the reverse side of the canvas.

Under this treatment the basics valuable document provided additional protection, because the application ID on the reverse side through the base on the front side is formed latent image caused identifier, which may be noticeable only with the use of special tools or special conditions of observation. Thus, the forgery can be detected in the result of the authentication at the second, higher, level validation.

Figure 11 presents an example implementation of the present invention, in which the banknote 130 on the front side has a layer 132 for recording and on the reverse side layer 134 for recording. When the application identifier 136 on the opposite side of the infrared laser 138 simultaneously changing the polarization properties of the front side on the basis of the treatment is emich sections 140, if this is not apparent darkening or other easily visible color change of basis. The identifier printed on the reverse side, can then be seen from the front side when observed through a polarizing filter.

By applying additional detector layer 142 on the front side of the base, as shown in Fig, can be used many effects of image recognition used in forensics. For example, the detector layer 142 may contain a thermoplastic material with a small addition of an absorber of infrared radiation. Then, if the laser creates a label on the reverse side of the banknote, in the detector layer 142 create smooth areas that can be seen under a microscope or by tilting the banknote at a certain angle. In another example implementation the detector layer may contain a luminescent, in particular fluorescent, dye, fluorescent properties which locally can be disrupted as a result of exposure to laser radiation.

In the example implementation Fig presents bill 150, containing a combined transmission image 152, in which on both sides of the banknote 150 noticeable only on one part applied with intervals of image ID, and the ID of the whole can be seen only PR is the observation in transmitted light through. On Fig(a) schematically presents the combined transmission image 152, visible when observed in transmitted light, as part of an image observed when viewed from the front side indicated by different hatching. On Fig(b) illustrates the layer structure of the composite image at the cross section of the banknote along the line B-C.

To produce a combined transmission image 152, first, on the reverse side of the banknote put absorbent and non-transparent coating layer 154, such as a metal or an opaque printed layer. The opaque coating layer 154 is partially removed or converted into a transparent modification by irradiation of the banknote from the front side, so that on the reverse side there are only sub-sections 156 a cover layer 154.

Then the front side of the banknote treated with laser radiation of high intensity, resulting on the front side are formed visible and, if necessary, also the tactile tangible areas 158 ID. The outlines of sections 156 and 158 ID aligned so that when observed in transmitted light, together they make up the specified identifier; in this example implementation is the digit "1". Both plot 156, 158 ID done the same with a laser beam, the combination is the ideal solution for the m and thus, possesses a high degree of protection. In addition, especially in the case of tactile tangible identity, one can clearly distinguish that the ID was caused by laser radiation.

On Fig shows schematically the scanning head 200 vector laser encoder, whereby the base 202 is applied serial number 204. The base 202 may be a valuable document that has already been completely cut sheet with many forms of valuable document or securities of a continuous format.

The infrared beam 206 laser reject two movable mirrors 208, and one mirror causes a deflection in the x direction, and the other mirror in the y direction. Flat lens 210 focuses the laser beam 206 on the base 202 to which it is applied in the manner described above, the ID on the front and/or back side, here is the serial number 204. The base 202 is moved in the process of printing labels with a certain velocity v. This speed is measured by sensors and transmitted to the computer to control the movement of the mirrors 208 in order to compensate for the speed of the basis v in the process. Thus, this method of applying labels can be used particularly preferably for contactless application of labels on valuable documents, which are processed at high speed as it usually occurs in the printing.

Labels can be applied on the base 202 also another way, for example using a dot matrix emerging laser beams or by using beams of high-sectional, partially blocked by the stencil. These stencils can be automatically changed in the process of applying. If it is impossible or undesirable to direct the radiation along the direction of the velocity basis, you can also apply a label on a moving basis, choosing short exposure time. It is also possible beam steering using polygonal mirrors.

Depending on foundations as sources of radiation may use carbon dioxide (CO2) lasers, lasers YAG garnet with neodymium (Nd:YAG or other laser types, emitting in the wavelength range from the ultraviolet to the far infrared part of the spectrum, often predominantly also use lasers with double or triple the frequency. However, it is preferable to use laser sources in the near infrared region of the spectrum, as this wave good range corresponds to the region of absorption of the used frameworks and printing inks. Depending on the destination, the size of the spot formed by the laser beam can be varied from a few microns to several millimeters, for example, changing the distance between p oskay lens 210 and the base 202.

Output power continuous generation commonly used laser encoder is in the range from a few watts to several hundred watts. Lasers YAG garnet with neodymium (Nd:YAG) can operate as a laser diode, producing a low total output power, small size and high light output and lamp pumping, generating high output power. In order not to decrease the speed of industrial lines for the production of valuable documents, labels, preferably applied by using a galvanometer, moving with very high velocity, which may keep a beam on the basis of speeds of over 1000 mm/s, preferably up to 4000 mm/sec. At such speeds, only a small fraction of energy falls on a Foundation or on floor at each site, so it is preferable to use lasers YAG garnet with neodymium light pump with output power of about 100 watts.

By modifying the application of, for example, by changing the output power of the laser, the exposure time, spot size, speed of application, the working mode of the laser, and the like, the results of application can be varied within a wide range. For example, it is possible to change the height of the tactile tangible labels generated by the laser. It is preferable that the height so the ilen tangible marks ranged from 30 to 100 μm. Similarly, the composition of the paper base is preferably chosen in accordance with the used laser radiation or with the output power of the laser used.

Such identifiers is performed, for example, by laser YAG garnet with neodymium (Nd:YAG)having a wavelength of the main fashion 1064 nm, average output power 26 watts and a modulation frequency of 8 kHz. The diameter of the laser beam on the basis (spot size) is approximately 100 μm, and the speed of movement of the laser beam on the substrate surface is 250-4000 mm/s is the Characteristic height of the tactile tangible identifier generated by these parameters, is in the range of 30-80 μm. In some cases, i.e. in particular at low speeds, can be also achieved significantly higher values, for example, at a speed of 250 mm/s for height is more than 100 μm. The width of the labels usually lies in the range from 0.2 to 0.6 mm

For the calendered hlopchatobumaojunoe paper with a density of 90 g/m2when the speed of the impact, for example, 330 mm/s receive tactile tangible labels with an average elevation of 70 μm and a line width of about 500 microns. When the speed of the impact 675 mm/s at the same width of the lines reached the height of the relief is only about 40 microns. For paper, consisting of a mixture of cotton and plastic fibers with a share of plastic fibres 2.5% of the total weight and the surface density of 90 g/m 2(so-called paper Synthek), the sizes of the labels that are generated at a speed of 250 mm/s, the following: the average height of 65 μm and an average width of approximately 0.5 mm When increasing speed up to 1000 mm/s dimensions were: the average height of 35 μm and an average width of 0.3 mm

On Fig depicted laser encoder 220, which has a sheet 222, on which multiple lasers simultaneously perform identifiers according to this invention. In the present case, the sheet 222 has six columns and six rows, so this worksheet is located 36 separate forms 224 valuable documents. For each column on the printed sheet 222 is laser tube 226, which, together with the connected with it scanning head 228 performs on each individual form 224, located in this column, identifiers according to this invention. When using this configuration, it is possible to significantly improve the processing speed, since the laser beam does not need to move through the entire printed sheet, and requires only one movement of the print sheet along the columns. Applying labels to individual forms of exercise, as described with reference to Fig, through the deflection of the laser radiation mirrors located in the scanning head 228.

1. Value document, in particular a banknote, having individual label inflicted on men is our least once on the front and on the reverse side of the valuable document, moreover, at least one of the individual identifiers printed on the front and reverse side, printed on the value document in a contactless manner, and the application of individual identifiers and on the obverse and on the reverse side of the valuable document is carried out by one-way process valuable document.

2. Valuable document according to claim 1, characterized in that at least one of the individual identifiers printed on the value document by exposure to the beam.

3. Valuable document according to claim 2, characterized in that on the front and/or back side of the valuable document is at least one sensitive to laser radiation plot ID, through which the laser beam is made unique ID.

4. Valuable document according to claim 3, characterized in that on the front and on the back side located opposite the areas of identifiers containing the agreed identifiers.

5. Valuable document according to claim 3 or 4, characterized in that at least one of the parts of identifiers formed is sensitive to laser radiation layer for recording printed on the value document.

6. Valuable document according to claim 5, characterized in that sensitive to laser radiation layer for recording contains a printed layer in cast the STI layer gravure printing, a layer of screen printing a layer of printing ink with special effects, a layer of absorbing ink or printed layer consisting of a mixture of different printing inks and absorbing printing ink or other absorbing substances.

7. Valuable document according to claim 5, characterized in that the layer to record sensitive to laser radiation, contains metal layer, in particular the layer for recording is formed by a protection element, equipped with a metal strip or insert.

8. Valuable document according to claim 3 or 4, characterized in that at least one of the parts of the identifier is formed is sensitive to laser radiation plot for the record, located on the basis of the valuable document.

9. Valuable document according to claim 8, characterized in that the area to record sensitive to laser radiation generated by the introduction of an absorbing species in the basis of the valuable document.

10. Valuable document according to claim 8, characterized in that the area to record sensitive to laser radiation, contains TiO2, soot particles, interference pigments or absorbers of infrared radiation.

11. Valuable document according to claim 1, characterized in that at least one of the identity manifests visually noticeable color change, in particular forms darkening.

12. Valuable document according to claim 1, characterized t is m, that at least one of the identifiers has tactile tangible label with a relief structure.

13. Valuable document according to claim 1, characterized in that at least one of the identifiers is formed a latent image which becomes visible only when the use of special tools or special conditions of observation.

14. Valuable document according to item 13, wherein the latent image is performed by means of laser exposure on the site for the entries on the basis of the valuable document, or on a layer to record.

15. Valuable document according to item 13 or 14, characterized in that the valuable document is locally variable surface structure, locally variables polarization properties or variables locally luminescent properties on the plot of the latent image.

16. Valuable document according to claim 1, characterized in that at least one of the individual identifiers printed on the value document in a non-contact method of inkjet printing.

17. Valuable document according to claim 1, characterized in that at least one of the individual identifiers printed on the value document by way of letterpress printing.

18. Valuable document according to claim 1, characterized in that both the identifier printed on the front and back side of the valuable document is read in the forward direction.

19. Price is the first document according to claim 1, characterized in that the individual label contains the serial number, bar code or matrix code.

20. Valuable document according to claim 1, characterized in that at least one of the individual identifiers encoded in the form of a cryptogram.

21. Valuable document according to claim 1, characterized in that at least one of the individual identifiers applied in the form of waves, circles or arcs.

22. A method of manufacturing a valuable document having an individual label, which is applied at least once on the front and on the reverse side of the valuable document, and in which at least one of the coating on the front and on the back perform a contactless manner, and the application of individual identifiers and on the obverse and on the reverse side of the valuable document is carried out by one-way process valuable document.

23. The method according to item 22, wherein at least one of the individual identifiers to be applied on the valuable document in a non-contact method of inkjet printing.

24. The method according to item 22, wherein at least one of the individual identifiers to be applied on the valuable document through exposure to the beam.

25. The method according to paragraph 24, wherein the exposure parameters chosen so that the generated laser beam is broken the ATOR showed visually noticeable change in color or contrast, in particular, formed the darkness.

26. The method according to paragraph 24 or 25, characterized in that the exposure parameters chosen so that the generated laser beam identifier acquired tactile tangible relief structure.

27. The method according to paragraph 24, wherein the exposure parameters chosen so that the generated laser beam identifier formed latent image visible only when the use of special tools or special conditions of observation.

28. The method according to paragraph 24, wherein before the laser treatment on the valuable document is applied one or more layers to records in which form one or more individual identifiers.

29. The method according to p, characterized in that as a layer for recording cause of the printed layer.

30. The method according to p or 29, characterized in that as a layer for recording is applied multilayer protection element transfer method.

31. The method according to paragraph 24, wherein the laser source using an infrared laser with a wavelength in the range from 0.8 to 3 μm, in particular laser YAG garnet with neodymium (Nd:YAG).

32. The method according to paragraph 24, wherein for the formation of the identifier of the laser beam are on the basis of the valuable document with a speed of 55 mm/s, preferably greater than 1000 mm/s, especially n edocfile more than 2000 mm/s



 

Same patents:

Protective element // 2381908

FIELD: physics.

SUBSTANCE: protective element has at least one section on which there is a diffraction structure which, under defined viewing conditions, reconstructs a diffraction-optical image, and on which there is are subsections which do not take part in reconstruction of the diffraction-optical image and display visually distinguished information. The subsections and the diffraction structure surrounding them under conditions for viewing the protective element, where the diffraction structure does not reconstruct the diffraction-optical image, have identical or at least very similar reflection properties, which makes the information displayed by the subsections primarily visible only in the said defined conditions for viewing the diffraction-optical image.

EFFECT: protective element has high degree of protection from counterfeiting and has defined readable information.

57 cl, 24 dwg, 17 ex

FIELD: physics.

SUBSTANCE: protective element has a transparent or semitransparent base. The base has an authentication mark which creates a first optical pattern in passing light and looks like it has no patterns, transparent or semitransparent and colourless. In reflected light on a predefined and readily accessible background, it forms a second optical pattern and looks like it has a defined colour image, with the second optical pattern considerably distinct from the first optical pattern.

EFFECT: proposed protection element has high degree of protection from counterfeiting with easy authentication at the same time.

121 cl, 20 dwg

Valuable document // 2381906

FIELD: physics.

SUBSTANCE: invention relates to a valuable document, for example a banknote, a passport or some other similar document, as well as to counterfeit protected paper and methods of marking said valuable document and counterfeit protected paper. Given document has counterfeit protected paper with a coating on at least one of its separate sections and a laser-deposited mark which passes through the boundary between the coating and the counterfeit protected paper.

EFFECT: high degree of protecting valuable document from counterfeiting with improved visible protective features.

18 cl, 7 dwg

FIELD: printing industry.

SUBSTANCE: valuable document has marking, which contains luminescent compound that has both anti-stokes and Stocks law luminescence, with composition of Ln 1-X-Y-Z YbX ErY CeZ MeIC MeVID PI-D O4+D/2-C where: MeI - Li or Na, MeVI - W or Mo, Ln - Y, La, Gd, 0.1 ≤ x ≤ 0.9; 0.005 ≤ y ≤ 0.2; 0.0001 ≤ z ≤ 0.01; 0.001 ≤ c ≤ 0.1; 0.001 ≤ d ≤ 0.1; or compound of the following composition: Ln 2-X-Y-Z YbX ErY CeZ O2 S, where Ln - Y, La, Gd, 0 <x ≤ 0.2; 0.1 ≤ y ≤ 0.4; 0.0001 ≤ z ≤ 0.005; or compound of the following composition: Ln 2-X-Y-Z ErY CeZ O2 S; where Ln - Y, La, Gd, 0 < x ≤ 0.2; 0.1 ≤ y ≤ 0.4; 0.0001 ≤ z ≤ 0.005. Marking may be made by printing method, for instance offset method of printing. Method for identification of valuable document authenticity with all above mentioned criteria inherent in it includes detection of hidden protective marking on a valuable document by measurement and further analysis of dependency extent of stokes and anti-stokes luminescence strip intensity on density of excitation radiation capacity.

EFFECT: improved level of valuable document protection.

6 cl

FIELD: printing industry.

SUBSTANCE: counterfeit-protected valuable document represents banknote, passport, valuable paper, plastic card, certificate, travel document, excise label, bill, diploma, driver's license or any similar produce with protective element, applied by printing method, at the same protective element for protection of identification and/or payment data of valuable document against introduction of corrections and detection of authenticity is arranged as achromatic or slightly painted with dye, having selective spectrum of diffused reflection in visible and/or near infrared area of optical spectrum. Method for protection against valuable document counterfeit includes application of protective element onto item surface by solid layer or locally and further application of identification and/or payment information over protective element. Visualisation device for creation of special conditions for illumination and visualisation of protective element includes radiators, condensers and light filters arranged at the angle relative to protective element, and also element that prevents external exposure of controlled document to light and video camera, which sends signal to reflection device.

EFFECT: improved security of valuable document against counterfeit protection.

52 cl, 1 dwg

FIELD: printing industry.

SUBSTANCE: first area is produced in varnish layer, being formed by the first relief structure. Layer of metal with permanent surface density versus plane created by axes x and y of coordinate grid is applied onto replica varnish layer in the first area of protection element and in neighboring second area of protection element. The first relief structure represents a diffraction structure with ratio of depth to width of separate structural elements more than 0.5, at the same time layer of metal is formed with a nominal thickness of t0 layer, when transparency of metal layer is increased by means of the first relief structure availability in the first area versus transparency of metal layer in the second area.

EFFECT: proposed element of protection is cheap to manufacture and has high extent of counterfeit protection.

24 cl, 27 dwg, 2 tbl

FIELD: printing industry.

SUBSTANCE: valuable document with counterfeit protection contains within and/or its surface protective marking, which includes composition of luminescent compounds, which comprises at least one inorganic photo-stimulating luminescent compound brought into excited condition under action of radiation of UV or visible range of spectrum and having luminescence in visible range of spectrum under effect of infrared radiation, and inorganic anti-stokes luminescent compound, having luminescence in visible range of spectrum under action of infrared radiation, and in case of serial or simultaneous action of radiations, it provides for generation of registered dynamic effect, which consists in change of colour, flashing, recession of brightness waves or pulsation of protective marking image. Method for verification of authenticity suggests serial radiation of valuable document by radiation and visual registration of dynamic effect. Device for verification of authenticity comprises source of photo-excitation radiation, source of photo-stimulating radiation, diaphragm for generation of directivity pattern of specified radiations and control unit, at the same time optical axes of both sources of radiation cross in plane of valuable document protective marking location.

EFFECT: improved protection of document.

27 cl, 4 dwg

FIELD: process engineering.

SUBSTANCE: proposed counterfeit-protected symbol consists of, at least, one layer reflecting electromagnetic waves, one polymer separating layer and one layer made up of metal clusters. One or more of above listed layers, apart from variable-colour effect initialization, provide for protection that can be physically checked up, when infringed upon, by optical and/or electrical conductance and/or magnetic and/or court expert trial methods.

EFFECT: higher degree of protection.

33 cl, 7 dwg, 7 ex

FIELD: process engineering.

SUBSTANCE: proposed method uses plastic substrate to allow regular orientation of LC material molecules. First layer comprising LC material is applied onto substrate with spacings to have LC material molecules oriented regularly and uniformly. During the first step of proposed process said substrate represents a foil with prefabricated pattern that features preferable direction provided by its inner structure to allow aforesaid uniform and regular orientation of LC material molecules.

EFFECT: higher degree of protection.

54 cl, 21 dwg

FIELD: process engineering.

SUBSTANCE: proposed invention relates to protection element intended for protecting valuable objects. Said element has first optically active layer arranged on, at least, several sections, and containing cholesteric LC material. In compliance with this invention, there is second optically active layer arrange on, at least, several sections, both layers being located one above the other in overlapping section. First optically active layer selectively reflects 1st-wave-range light with first direction of circular polarization, while second layer reflects, either independently of together with aforesaid first layer in overlapping section, 2nd-wave-range light with second direction of circular polarization. Note here that first optically active layer reflects only visible spectrum portion light in the first direction of observation, while, in the second direction of observation, it reflects 1st colour visible light. Note also that first and/or second optically active layer is made in the form of symbols or patterns.

EFFECT: higher degree of protection against counterfeit.

69 cl, 19 dwg

FIELD: technological processes.

SUBSTANCE: invention may be used in systems of laser marking and engraving in industry, for artistic applications, for authentication and personification of items and documents. Method for application of raster image consists in the fact that image of original is introduced into computer, image is transformed into raster array of numbers, working element coordinates are changed, working element is put in action, and dots are applied with its help onto surface of item. Working element used is represented by laser radiation. At the same time test image is previously downloaded into computer, and this image is applied onto surface of test sample, produced result is assessed, and laser radiation properties are accordingly adjusted in compliance with it. Multistage filtration of raster array of numbers is carried out, afterwards image of original is marked onto item.

EFFECT: high quality of applied image, increased resource of equipment, higher speed of image application, and also expansion of field of materials suitable for application of images.

6 dwg

FIELD: technological processes.

SUBSTANCE: digital array of data is created, which defines graphical configuration of partial plating, at that, using digital array, trajectory of tool motion is calculated, as well as control data for tool control, at that tool and single- or multi-layer film carcass are moved in relation to each other in accordance with tool motion trajectory. Tool that is controlled according to control data provides partial discrete de-metalation of metal layer by means of application of wipe-off mask for partial masking of single- or multi-layer film carcass. Foresaid mask is applied by spraying. Single- or multi-layer film carcass is further dried, provided with metal layer, and metal layer is partially removed by flushing method in area of wipe-off mask.

EFFECT: efficiency from production point of view, possibility to apply coating on different surfaces and exclusion of thermal or mechanical effect onto surface.

13 cl, 16 dwg

FIELD: protective members for visual controlling of authenticity of printing product such as security papers, banknotes, identification cards.

SUBSTANCE: protective member is formed as color layer applied to substrate and having color-free portions produced by exposing color layer to laser radiation for forming of image detected by visual control. Substrate surface is provided with relief, said image being formed on at least one side of relief after exposing to laser radiation falling at predetermined angle to relief surface. Protected printing product is equipped with protective member for visual controlling of paper authenticity.

EFFECT: increased extent of protecting printing products due to creation of protective member more complicated for counterfeit and using optical variable image.

7 cl, 5 dwg

FIELD: printed matter of special format.

SUBSTANCE: multi-layered article comprises the layer sensitive to the laser radiation, marking member, e.g., diffraction and/or holographic structure, reflecting layer, and print formed in the second layer and/or in the layer sensitive to the laser radiation. The layer sensitive to the laser radiation has markers that are made by means of laser radiation and precisely positioned with respect to the marking member.

EFFECT: enhanced reliability of protection.

27 cl, 40 dwg

Valuable document // 2381906

FIELD: physics.

SUBSTANCE: invention relates to a valuable document, for example a banknote, a passport or some other similar document, as well as to counterfeit protected paper and methods of marking said valuable document and counterfeit protected paper. Given document has counterfeit protected paper with a coating on at least one of its separate sections and a laser-deposited mark which passes through the boundary between the coating and the counterfeit protected paper.

EFFECT: high degree of protecting valuable document from counterfeiting with improved visible protective features.

18 cl, 7 dwg

FIELD: printing industry.

SUBSTANCE: valuable document has marking, which contains luminescent compound that has both anti-stokes and Stocks law luminescence, with composition of Ln 1-X-Y-Z YbX ErY CeZ MeIC MeVID PI-D O4+D/2-C where: MeI - Li or Na, MeVI - W or Mo, Ln - Y, La, Gd, 0.1 ≤ x ≤ 0.9; 0.005 ≤ y ≤ 0.2; 0.0001 ≤ z ≤ 0.01; 0.001 ≤ c ≤ 0.1; 0.001 ≤ d ≤ 0.1; or compound of the following composition: Ln 2-X-Y-Z YbX ErY CeZ O2 S, where Ln - Y, La, Gd, 0 <x ≤ 0.2; 0.1 ≤ y ≤ 0.4; 0.0001 ≤ z ≤ 0.005; or compound of the following composition: Ln 2-X-Y-Z ErY CeZ O2 S; where Ln - Y, La, Gd, 0 < x ≤ 0.2; 0.1 ≤ y ≤ 0.4; 0.0001 ≤ z ≤ 0.005. Marking may be made by printing method, for instance offset method of printing. Method for identification of valuable document authenticity with all above mentioned criteria inherent in it includes detection of hidden protective marking on a valuable document by measurement and further analysis of dependency extent of stokes and anti-stokes luminescence strip intensity on density of excitation radiation capacity.

EFFECT: improved level of valuable document protection.

6 cl

FIELD: printing industry.

SUBSTANCE: counterfeit-protected valuable document represents banknote, passport, valuable paper, plastic card, certificate, travel document, excise label, bill, diploma, driver's license or any similar produce with protective element, applied by printing method, at the same protective element for protection of identification and/or payment data of valuable document against introduction of corrections and detection of authenticity is arranged as achromatic or slightly painted with dye, having selective spectrum of diffused reflection in visible and/or near infrared area of optical spectrum. Method for protection against valuable document counterfeit includes application of protective element onto item surface by solid layer or locally and further application of identification and/or payment information over protective element. Visualisation device for creation of special conditions for illumination and visualisation of protective element includes radiators, condensers and light filters arranged at the angle relative to protective element, and also element that prevents external exposure of controlled document to light and video camera, which sends signal to reflection device.

EFFECT: improved security of valuable document against counterfeit protection.

52 cl, 1 dwg

FIELD: printing industry.

SUBSTANCE: specified protective strip is made of sectors, where interrupted background is visible, made of dots of image arranged in space, besides, symbol defined repeated absence of points. Dots are arranged so that it is impossible to differentiate them, at the same time space between dots becomes unnoticeable for unaided eye. Suggested protective strip has image, which is difficult to reproduce by optical means.

EFFECT: improved counterfeit protection of an important document.

6 cl, 1 dwg

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