The invention relates to an apparatus for applying security elements, a security elements carrier band, a method for applying security elements.
Value documents as intended by the invention are, inter alia, bank notes, shares, bonds, deeds, vouchers, checks, air tickets, high-value admission tickets, labels for product authentication, credit cards or cash cards, but also other documents at risk of forgery, such as passports, identification cards or other identity documents.
Value documents, in particular bank notes, are usually produced from paper substrates, polymer substrates or combinations of paper and polymer which have particular security features, such as a security thread at least partly incorporated into the paper or a watermark. As further security features, so-called window foils, security threads, security bands can be bonded/laminated to the value document or incorporated therein. Security elements usually comprise a polymer or polymer compositions as a carrier material or base material. Typically, security elements have optically variable security features such as holograms or certain color-shift effects to thereby guarantee better anti-forgery security. The particular advantage of optically variable security elements is that the security features on said security elements cannot be imitated by mere copying using a copying machine, since effects of an optically variable security feature are lost or even only appear black through copying.
There already exist apparatuses for applying elements. For illustrating these apparatuses, reference is made to
It is an object of the present invention to supply an apparatus which makes it possible to apply security elements onto value document substrates with lower time expenditures and at lower costs.
These objects are achieved by the subject matter of the independent claims. Preferred embodiments are defined in the dependent claims.
A first aspect of the invention relates to an apparatus for applying security elements, comprising
Advantageously, by the present apparatus having the application region in which the security elements are applied with their second main surface onto the value document substrate web, it can be achieved that the security elements in spite of a narrower arrangement on the security elements carrier band can be transferred reliably and with high process speeds onto the value document substrate web.
Further advantageously, the material usage required for the security elements carrier band can be decreased by the present apparatus.
The value document substrate transport device is preferably designed as a roll-to-roll device. In an initial state the value document substrate web is wound on a roll or cylinder. Alternatively, the value document substrate web is present as an endless substrate. The value document substrate web is transported through the application region by means of one or several conveyor rolls of the value document substrate transport device. In so doing, a value document substrate web, which in its initial state is wound on a roll, is unwound/unrolled.
Preferably, after passing the application region, the value document substrate web is again wound onto a roll or a cylinder. Further preferably, after the application region the value document substrate web can be fed to one or several further processing region(s) before the value document substrate web is wound onto a roll or a cylinder or is made up into sheets.
Preferably, before the application region there can be arranged one or several processing regions.
The security elements transport device is preferably designed as a roll-to-roll device. In an initial state the security elements carrier band is wound on a roll or cylinder. Alternatively, the security elements carrier band is present as an endless band. By means of one or several conveyor rolls of the security elements transport device the security elements carrier band is transported through the application region. In so doing, a security elements carrier band which in the initial state is wound on a roll is unwound/unrolled.
Preferably, after passing the application region the security elements carrier band without security elements is again wound onto a roll or a cylinder.
The adhesive properties of the security elements at the second main surface thereof can be achieved, for example, by an adherent layer or adhesive layer laid on the security elements. In particular, a heat-sealing adhesive can be used as an adhesive.
Preferably, the adhesive forces or the adhesiveness which act or acts between the first main surface of the security elements carrier band and the first main surface of the security elements are lower than the adhesive forces or the adhesiveness which act between the second main surface of the security elements and the value document substrate web.
In the application region the security elements are transferred from the security elements carrier band onto the value document substrate. In the application region the security element is detached from the security elements carrier band and—in particular simultaneously—laid onto the value document substrate.
The security elements are preferably of a multi-layer design. Preferably, a security element comprises a carrier material, such as a foil element and/or one or several lacquer layers and/or one or several adhesive layers and/or one or several metal layers and/or one or several semi-metal layers and/or dielectric layers.
The security element can comprise a foil element which leads to self-supporting properties of the security element. This security element is also referred to as self-supporting security element, in particular L-LEAD or L-patch.
The security element can be configured without foil element leading to self-supporting properties of the security element. This security element is also referred to as a non-self-supporting security element, in particular as a T-LEAD or T-patch.
Preferably, the value document substrate web and the security elements carrier band have substantially the same transport direction in the application region.
Particularly preferably, the value document substrate web and the security elements carrier band have the same transport direction in the region in which the transfer/the applying of the security elements onto the value document substrate web takes place.
Preferably, the apparatus transports the security elements carrier band and the value document substrate web in a roll-to-roll method through the application region.
Preferably, the value document substrate web in the application region has a speed of between 40 m/min. and 150 m/min. Preferably, the speed of the security elements carrier band in the application region is lower than that of the value document substrate web.
Preferably, the apparatus has an application device in the application region. Preferably, the application device comprises one or several application rolls or one or several transfer rolls. Preferably, the application device comprises one or several application wedges. The application wedge (or the application roll) are in particular arranged for detaching the security elements from the security elements carrier band and for laying these onto the value document substrate. Further preferably, the application device has one or several calender rolls or rollers. Preferably, an application wedge is arranged next to a calender roll. Preferably, the application wedge is heated. Preferably, the calender roll is heated.
Preferably, the heated application wedge serves to activate an adhesive of the security elements and thus promoting an adherence to the value document substrate web. Subsequently, the security elements can be finally fixed onto value document substrate web with the help of the heated calender roll. The calender roll/roller can have a width which corresponds to the width of the value document substrate web. Alternatively, the calender roll/roller can have a width which corresponds to the width of a security element.
Preferably, the application device has a width, i.e. in the direction transverse to the transport direction of the security elements carrier band, in the region of 20 mm to 1500 mm.
Advantageously, the apparatus has a counterpressure device in the application region, which supplies a counterpressure opposing the application device, in particular opposing the application roll and/or the calender roll. The counterpressure device is preferably a counterpressure roll/counterpressure cylinder.
Advantageously, this decreases or avoids additional action of force onto the value document substrate web and/or the security elements carrier band.
Further preferably, the application region is arranged between a feeding region and a removing region of the security elements carrier band.
Further preferably, the security elements carrier band surrounds the circumference of the application device by 40% or more or by at least 40%. Preferably, the application device is heatable. Preferably, the application device is designed to heat the security elements carrier band. Preferably, the security elements carrier band surrounds the circumference of the application device in such a way that a heat transfer from a heated application device to a security elements carrier band is possible. Further preferably, a heating device for heating the security elements carrier band in the application region can be provided, in order to activate the adhesive properties of the security elements at the second main surface thereof and to thereby promoting an adherence of the security elements to the value document substrate web upon application.
Further preferably, the apparatus has an application angle γ. The application angle γ is preferably in a region of 5° to 40° and/or 5° to 30° and/or 5° to 25° and/or 5° to 20° and/or 5° to 15° and/or 5° to 10° and/or 8° to 20° and/or 8° to 15°.
Further preferably, in the removing region the security elements carrier band and the value document substrate web enclose an angle β.
Preferably, the apparatus comprises at least one processing region which is arranged before the application region. Preferably, a processing region is a cutting region and/or a punching region. Preferably, in a cutting region and/or a punching region the value document substrate web can be processed. For example, so-called windows or holes of different forms can be introduced into the value document substrate web. Preferably, these windows or holes are later closed by the application of security elements.
Preferably, the following statements regarding the security elements carrier band, the method for application as well as the value document apply analogously also to the above-described apparatus.
A further aspect relates to a security elements carrier band having a plurality of security elements, wherein
the security elements carrier band has a first and a second main surface which oppose each other,
each security element has a first and a second main surface which oppose each other,
each security element is arranged with its first main surface at the first main surface of the security elements carrier band, and
the second main surface of each security element has adhesive properties for application to the value document substrate web.
Preferably, the security elements are fixed onto the value document substrate web on account of the adhesive properties.
Preferably, the security elements carrier band comprises a carrier foil as a carrier band material. Particularly preferably, the carrier material includes polyethylene terephthalate (PET) and/or polypropylene (PP), the carrier material made of PET or PP is particularly preferred.
Preferably, the security elements have a distance of 5 mm to 80 mm in the direction of the transport direction of the security elements carrier band.
Preferably, the security elements have a distance of 5 mm to 200 mm in the direction transverse to the transport direction of the security elements carrier band.
Preferably, the security elements carrier band has adhesive properties on its first main surface.
Advantageously, during the transport in the above-described apparatus the security elements thus adhere to the security elements carrier band at the first main surface of the security elements carrier band until reaching the application region. However, the adhesive properties are adjusted such that in the application region the security elements are detachable from the first main surface of the security elements carrier band in order to be applied onto the value document substrate web.
Preferably, the security elements carrier band has discrete regions on its first main surface which have the adhesive properties, and these discrete regions are covered by security elements.
Advantageously, the adhesive properties are thus present only in the regions which are covered by the security elements.
Preferably, these discrete regions are smaller than the first main surface of each security element, so that respectively the first main surface of the security elements is connected partially, via the discrete regions, with the security elements carrier band.
Preferably, the first main surface of each security element has no self-adhesive properties.
Advantageously, the adhesive properties between the security elements and the security elements carrier band are adjusted in such a way that the security elements are (easily) detachable from the security elements carrier band.
Preferably, the second main surface of the security elements carrier band has non-stick properties.
Preferably, the second main surface of the security elements carrier band has a non-stick coating, such as a wax layer, for non-stick properties.
Alternatively or additionally, a separating band is arranged at the second main surface of the security elements carrier band.
Preferably, the separating band is provided when the security elements carrier band is rolled up on a roll/cylinder for preventing a connection of the second main surface of the security elements with the second main surface of the security elements carrier band.
Preferably, the security elements are patches and/or (LEAD) strips. Preferably, the patches can be configured as L-patches and/or T-patches. Preferably, the (LEAD) strips can be configured as L-LEAD and/or T-LEAD. A security strip (or thread) is provided for extending over the entire width (or length) of a substrate, for example, of the value document. A patch as a security element is smaller in its length and width, normally substantially smaller, than the substrate (for example of the value document) for which the patch is provided.
Preferably, the security elements have a length in the direction of the transport direction of the security elements carrier band of 5 mm to 70 mm. Preferably, the security elements have a width of 5 mm to 40 mm, preferably 5 mm to 20 mm in the direction transverse to the transport direction of the security elements carrier band.
Preferably, the security elements have security features which are configured as relief structures, such as holograms, microlenses, micromirrors, moth-eye structures, microcavities. Alternatively or additionally, the security elements have security features which are configured as two- or multi-layer thin-film structures/elements, such as they are used for color-shift effects. Alternatively or additionally, the security elements have security features, which are configured as printed patterns, where UV-fluorescent and/or magnetically alignable effect pigments can be contained. Alternatively or additionally, the security elements have security features, which are configured as negative characters and/or negative patterns. Preferably, the security features are designed in such a way that they are visible in plan view and/or in transmission view.
Preferably, the statements with respect to the apparatus and the following statements regarding the method for applying as well as to the value document apply to the above-described security elements carrier band analogously.
A further aspect relates to a method for applying security elements, comprising
Preferably, the statements with respect to the apparatus and the following statements regarding the method for applying hold for the above-described security elements carrier band analogously.
In the step of applying, the security element is detached from the security elements carrier band and preferably simultaneously laid onto the value document substrate.
A security element according to this invention can contain in particular a foil or a multi-layer substrate, wherein the multilayer substrate can also have a combination of fabric substrates and foils. For example, the security element can comprise a window region which serves to fill, or bridge, a hole in a value document or in the paper substrate of the value document. In other words, with the security element there can be incorporated a security window in a value document or laid thereon. Preferably, the region to be coated is arranged in the window region of the security element. Alternatively, the security element can be laid onto a value document, for example laminated or bonded thereto. The security element can be a security thread or security band, windowed thread, patch or the like.
A further aspect relates to a value document, in particular a bank note, having a value-document substrate and at least one security element which has been manufactured by means of one or a plurality of the previously described method steps and/or from the described aspects.
A security element is laid preferably onto a value document substrate web, and a value document substrate web is made up into value document substrate sheets and then into value document substrate copies. Value document substrate serves as a basis for a value document substrate web. Value document substrate can be manufactured from natural polymer, such as cotton, synthetic polymer, such as polypropylene or a combination of natural and synthetic polymer, which is also referred to as a paper polymer combination.
The upper side and underside of the value document as well as those of the security element can also be referred to as main surfaces. Said main surfaces render relevant information to a viewer. Consequently, the main surfaces are visible to a viewer viewing a value document having a security element. For example, a main surface of a bank note can render the value of the bank note as well as its serial number. Accordingly, an upper side and underside of a security element, like those of a value document, can also be regarded as first and second main surfaces.
Preferably, the statements with respect to the value document hold analogously for the previously described apparatus, for the previously described security elements carrier band as well as for the previously described method for applying.
The invention will be explained hereinafter on the basis of preferred embodiments in connection with the attached figures, whose representation does without a true-to-proportion and true-to-scale rendition in order to increase the illustrative value.
There are shown:
The security element 104 has a region 106 having security features which comprises a negative-pattern region 108a and a color-shift or thin-film element region 110a. Furthermore, a negative-pattern region could have any shape or design. Preferably, a negative-pattern region enables a viewer to recognize the negative-pattern region in plan view and/or in transmission view. Further preferably, the negative-pattern region can have a different color appearance in plan view compared to transmission view (so-called transmission-view color effects).
According to an embodiment, in the value document substrate 102 according to
A strip, and likewise a patch, can further have any shape (outside contour) or design (layer construction).
If the security element 104 is configured as an L-LEAD or as an L-patch, it contains preferably a carrier material. The carrier material is made preferably of polyethylene terephthalate (PET).
Preferably, by applying the security elements there is changed only the distance in the transport direction, while the distance transverse to the transport direction may remain the same. In particular, the distance dA is greater than the distance d.
In the application region AB there is provided an application device 206 which supports the applying/transferring of the security elements 210 onto the value document substrate web 202. The application device 206 is an application roll. Preferably, a counterpressure device 208 can be provided in the application region AB to support the transfer of the security elements 210 onto the value document substrate web 202, on the one hand, and to reduce the mechanical loads on the value document substrate web 202 caused by the application roll 206, on the other hand.
In the feeding region ZFB the value document substrate web 202 and the security elements carrier band 204 enclose an angle α. In the removing region AFB the value document substrate web 202 and the security elements carrier band 204 enclose an angle β.
The apparatus 200 has an application angle γ. The application angle γ is preferably in a region of 5° to 40° and/or 5° to 30° and/or 5° to 25° and/or 5° to 20° and/or 5° to 15° and/or 5° to 10° and/or 8° to 20° and/or 8° to 15°.
According to the example of
The security element has adhesive properties at its second main surface HF2S, so that the security element with its second main surface HF2S can be fixed at a value document substrate web or applied thereon. Preferably, the security element has a layer 302 which is configured as an adhesive layer to fix the security element at a value document substrate web. The adhesive layer can be a heat-sealing adhesive layer. At its first main surface HF1S the security element preferably has no self-adhesive properties. The security element according to one embodiment may comprise a carrier material, so that the security element has self-supporting properties. Such a carrier material can be, for example, a carrier foil. The layer 306 or 304 can be configured as a carrier foil. The security element can further include one or several decorative layers such as lacquer and/or metal layers and/or printed layers which may also correspond to the layers 304 or 306.
As can be recognized in the Figures, between the security elements arranged on the security elements carrier band with a distance from each other there is a free region. In the free region there is no multi-layer structure, at least none of the layers of the security element, such as the layers 304 and 306, and further preferably no complete layer on the security elements carrier band.
If a security element, as represented in
Preferably, by applying the security elements there is changed only the distance in the transport direction, while the distance transverse to the transport direction may remain the same. In particular, the distance dA is greater than the distance d.
In the application region AB there is provided an application wedge 506a as well as a calender roll 506b as an application device which supports the applying/transferring of the security elements 510 onto the value document substrate web 502. Preferably, one or several counterpressure devices (not shown) can be provided in the application region AB to support the transfer of the security elements 510 onto the value document substrate web 502, on the one hand, and to reduce the mechanical loads on the value document substrate web 502 caused by the application wedge 506a and/or the calender roll 506b, on the other hand. The calender roll 506b is preferably heated.
In the feeding region ZFB the value document substrate web 502 and the security elements carrier band 504 enclose an angle α.
The apparatus 500 has an application angle γ. Preferably, the application angle γ is adjusted substantially by the application wedge 506a. The application angle γ is preferably in a region of 5° to 40° and/or 5° to 30° and/or 5° to 25° and/or 5° to 20° and/or 5° to 15° and/or 5° to 10° and/or 8° to 20° and/or 8° to 15°.
Number | Date | Country | Kind |
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10 2015 006 854.7 | May 2015 | DE | national |
Filing Document | Filing Date | Country | Kind |
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PCT/EP2016/000837 | 5/19/2016 | WO | 00 |