EP3467199A1 - Manufacturing apparatus and method for security paper - Google Patents

Abstract

The invention relates to a manufacturing device for a multilayer security paper (4), comprising a first wet end (8), which forms a first paper web (16), and a second wet end (10), which forms a second paper web (14), a device (32) for applying security elements (2) on the first paper web (16) and a Gautscheinrichtung (24) for connecting the first and the second paper web (16,14) to a total paper web (26), wherein the Gautscheinrichtung (24) of the The device (32) for applying security elements is followed by a supply device (36, 48, 54) for supplying prepared and isolated security elements (2) and an application device (40, 52) for placement the isolated security elements (2) on the first paper web (16).

Description

The invention relates to a manufacturing apparatus for a multi-ply security paper comprising a first wet end, which forms a first paper web, and a second wet end, which forms a second paper web, a device for applying security elements to the first paper web and a Gautscheinrichtung for connecting the first and the second paper web to a total paper web, wherein the Gautscheinrichtung the means for applying security elements is arranged downstream. The invention further relates to a manufacturing method for a multi-ply security paper, in which a first paper web is formed by means of a first wet end of a paper machine, and by means of a second wet end a second paper web is formed, security elements are applied to the first paper web and first and second paper web thereafter be connected by Gautschen to a total paper web.

Security documents or value documents produced therefrom are often provided with authenticity features, such as watermarks, embedded security threads and the like, which make it possible to check the authenticity of the security paper or value document and at the same time serve as protection against unauthorized reproduction.

Authenticity features that can only be introduced into the security paper during production, such as watermarks, security threads which are completely or partially embedded in the security paper, or the use of chemically reactive additives or mottled fibers, have proven useful in the past. The DE 102012024014 A1 generated for one Security thread holes in the first paper web. The DE 4041267 A1 deals with the introduction of security threads in a rotary screen paper machine. The DE 102015003187 A1 describes how paper patches can be provided inside a plastic value document substrate. For this purpose, a paper strip or a sequence of paper patches is introduced before or during the lamination of two plastic films.

The WO 2005/0124023 A1 discloses a generic manufacturing apparatus and a generic manufacturing method in which a paper machine in two wet sections first and second paper webs generated, which are then connected by Gautschen to a total paper web. Previously, a substance realizing a security element, for example made of mottled fibers, is applied to the first paper web. The manufacturing process according to WO 2005/0124023 A1 is limited to authenticity features that are created by introducing a liquid substance into the banknote paper. The location of the bodies, which are acted upon by the liquid substance, is fixed by the geometry of a spray head.

In WO 93/22496 A1 Paper fibers are first applied to a belt to produce a first paper web. Optically variable material, optionally in the form of a strip or isolated elements, is applied to the first paper web before further paper fibers are applied to the first paper web. The elements can be applied with a stamp. A time interval between two stamp processes determines a distance of the elements in the transport direction of the paper web, wherein the transport of the paper web for the stamping process must be interrupted. Alternatively, the optically variable material is sprayed masked or printed.

The invention has for its object to provide a manufacturing method and a manufacturing device for a multilayer security paper, which fixes the limitations of the prior art in terms of location and type of security elements.

The invention is defined in the independent claims. The dependent claims relate to advantageous developments.

The manufacturing device according to the invention serves to produce a multilayer security paper. It has a first wet end, which forms a first paper web, and a second wet end, which forms a second paper web. Furthermore, a device for applying security elements to the first paper web is provided. Subordinate to this device, a Gautscheinrichtung is provided to connect the first and the second paper web to a total paper web. The device for applying security elements comprises two sections. A first section is a feeder for supplying prepared and isolated security elements. A second section is an application device for the placement of the separated security elements on the first paper web. Similarly, the manufacturing method comprises forming a first paper web by means of a first wet end of a paper machine and a second paper web by means of a second wet end. On the first paper web security elements are applied, and then first and second paper web are vergautscht to a total paper web. The security elements are prepared and supplied sporadically and then placed transversely placed on the first paper web.

During production, the first and / or second paper web may be provided with a watermark. It is also possible, in a known way and Way to incorporate a security thread, a window thread or a so-called pendulum thread in the total paper web.

For the purposes of the invention, the term security paper refers to an unprinted paper that is further processed at a later time for the production of value documents. It represents a preliminary stage for the value document. Value documents within the meaning of the present invention are in particular banknotes, stocks, bonds, certificates, vouchers, checks, entrance tickets, but also other counterfeit-endangered papers, such as passports and other identity documents, as well as product security elements, such as labels, seals , Packaging and the like. The simplified term "security paper" or "value document" below includes all such documents and product security means.

In the present case, the transport direction of the paper web (or the length of the paper web) defines a longitudinal direction. A transverse direction is therefore - as usual - perpendicular to the length or transport direction of the paper web. For the purposes of the invention, the security elements are applied transversely placed, that is applied with adjustable transversal position. The position of the security elements on the paper web is thus transversely - transversely to the paper web - adjustable.

The security paper is multi-layered and comprises at least two layers of paper, between which lie the isolated security elements. Other layers may also be formed from paper, but also from other materials, for example by plastic films. The paper is preferably cotton paper as used for banknotes. The papermaking machine can be a fourdrinier machine or a round screening machine, in particular a countercurrent rounding machine, a direct current rounddrum machine or a double round screening machine, act. The total paper web is preferably output as a continuous paper.

The manufacturing device and the manufacturing process bring the security elements isolated. The choice of the top of the first paper web side of the security elements and / or the orientation are thus controllable.

A first embodiment uses a transfer web for the supply device for application. On the transfer path, the isolated security elements are arranged. The application device used is a transfer roller which transfers the security elements from the transfer web to the first paper web. The transfer roller can be used flexibly with respect to the position of the separated security elements on the transfer web if it has transversely different, for example, transversely to the paper web side by side, arranged -Transferstempel, which are controllably extendable out of the roll. In particular, for such a configuration of the transfer roller, it is preferred that the transfer web has receptacles for holding the individual security elements. The images then define a grid in which the isolated security elements can be applied. Of course, not all grid positions need to be filled. This can be selected depending on the application. The security elements can also adhere to a surface of the transfer web designed as a separating layer.

Greater flexibility in this regard is given by an embodiment in which the supply means comprises at least one dispensing unit having a dispensing which delivers the security elements to the transfer web. Particularly preferably, the dispenser unit at the dispensing station in each case a security element from. The position of the delivery station to the transfer path is adjustable, so that by appropriate control of the dispenser unit, the transfer path can be fitted transversely adjustable with security elements. The advantage of this approach is that the dispenser unit can be configured independently of the feed rate of the transfer web and ultimately also independent of the feed rate of the first paper web. This also applies to variants of the dispenser unit, which have a supply belt with isolated security elements. There is no concurrent speed of feed belt and transfer web or first paper web required.

Of course, it is equally possible in one embodiment, by means of a dispenser directly to equip the first paper web with isolated security elements. Such a dispenser unit is then designed in the form of a feed device in the form of a feed belt which supplies isolated security elements, and an applicator device which is designed as a delivery end of the feed belt that is adjustable transversely to the first paper web.

Both the transfer web and the dispenser unit and in particular a supply belt of the dispenser unit can be kept in the form of a wound-up roll on which a belt with isolated security elements is prepared. The security elements are detachably provided on the tape and can be stored so easily with appropriate adjustability of the delivery point and in freely selectable placement on the first paper web.

Examples of security elements are planchettes, plaques or mottled fibers. The security element may be formed of paper and / or plastic, that is, for example, a polymer film as a substrate, paper as a substrate a composite substrate or polyamide fibers. The security elements have a machine or optically detectable property, which in particular allows an authenticity check. The optically detectable property can be excited by means of irradiation (UV / IR). The security elements are particularly preferably planar security elements.

Usually, a benefit size is given for the security paper, according to which the total paper web is separated after production. The procedure according to the invention allows several, in particular an adjustable number of isolated security elements to be applied to each use. Also, the security elements may differ in size and / or type.

Fig. 1

eine Schemadarstellung einer Banknote,

Fig. 2

ein mehrlagiges Sicherheitspapier, aus dem Nutzen für den Druck der Banknote der Fig. 1 geschnitten werden,

Fig. 3

eine Schemadarstellung einer Papiermaschine zur Herstellung des Sicherheitspapiers der Fig. 2,

Fig. 4

eine Schemadarstellung einer Aufbringeinrichtung, die in der Papiermaschine der Fig. 3 vorgesehen ist,

Fig. 5

eine vergrößerte schematische Darstellung einer ersten Ausführungsform der Aufbringeinrichtung,

Fig. 6 und 7

Schnittdarstellungen bzw. perspektivische Schemadarstellungen einer zweiten Ausführungsform der Aufbringeinrichtung und

Fig. 8

eine perspektivische Schemadarstellung einer dritten Ausführungsform der Aufbringeinrichtung.

The invention will be explained in more detail by means of embodiments with reference to the accompanying drawings, which also disclose features essential to the invention. These embodiments are merely illustrative and are not to be construed as limiting. For example, a description of an embodiment having a plurality of elements or components is not to be construed as requiring all of these elements or components for implementation. Rather, other embodiments may also include alternative elements and components, fewer elements or components, or additional elements or components. Elements or components of various embodiments may be combined with each other unless otherwise specified. Modifications and modifications described for one of the embodiments may also be applicable to other embodiments. To avoid repetition, the same or equivalent Elements in different figures with the same reference numerals and not explained several times. In the figures show:

Fig. 1

a schematic representation of a banknote,

Fig. 2

a multilayer security paper, from the benefit of printing the banknote of Fig. 1 get cut,

Fig. 3

a schematic representation of a paper machine for producing the security paper of Fig. 2 .

Fig. 4

a schematic view of an applicator, in the paper machine of Fig. 3 is provided,

Fig. 5

an enlarged schematic representation of a first embodiment of the applicator,

6 and 7

Sectional views or perspective schematics of a second embodiment of the applicator and

Fig. 8

a perspective schematic view of a third embodiment of the applicator.

Fig. 1 shows schematically in plan view a banknote. It was made from a security paper, including printing. The bill is made from conventional banknote paper, which is usually cotton paper or cotton-containing paper. In the banknote paper two security elements 2 are embedded, so they are at least partially within the banknote paper. The banknote 1 has been cut to a benefit derived from a web of security paper 4 on which a plurality of benefits 5 are provided, each of which is the preliminary stage for one or more banknotes 1.

Fig. 3 schematically shows a paper machine 6 for producing the web-shaped security paper 4. It is exemplified by a first round-screen paper machine 8 and a second round-screen paper machine 10 and has other components for supplying security elements.

In the second Rundsiebmaschine 10, which is preferably designed as Gleichstromrundsiebmaschine, a paper web 14 is formed in a conventional manner on a round screen 12. This paper web 14 preferably has a grammage of 60-80 g / m ² . The round screen 12 is a dewatering screen whose carrier screen is optionally provided with reliefs in the form of watermarks to be produced. Parallel to the production of the first paper web 14, a first paper web 16 is produced in the first round screening machine 8, for example by paper pulp being sprayed onto the surface of a round screen 20 by means of a headbox nozzle 18. The first paper web 16 produced with the first round screening machine 8 is optionally thinner than the second paper web and has, for example, a grammage of between 10 and 20 g / m ² . It is removed by means of a pick-up felt 22 from the round wire 20 and a combination device, such as a couch roll 24, fed, which connects the first paper web 16 with the second paper web 14 to a total paper web 26.

When merging the paper webs 14, 16 is also from a coil 28, an endless security element, for example in the form of a security thread 30 unwound and embedded between the two paper webs 14,16 when connecting.

Furthermore, an application device 32 is provided between the first round screening machine 8, ie after the first paper web 16 has been produced in the wet phase and before the first and second paper webs 14,16 are connected, which individual, ie individual elements formed security elements on the first paper web 16th so applying that the security elements when connecting the first paper web 16 and second paper web 14 is located between the paper webs. In the presentation of the Fig. 3 the security elements are applied to the underside of the first felt 14 carried by the pick-up felt 22. For the applicator 32, it is essential that it supplies the security elements isolated and each individualized, ie spaced from other security elements on the first paper web 16 stores. Various embodiments of the applicator 32 will be described below with reference to FIG Fig. 4 to 8 explained.

The Fig. 4 and 6 relate to a first embodiment of the applicator 32. In this, a supply reel 34 is provided, on which a carrier web 36 is wound, which, for. B. in shots, a plurality of isolated security elements 2 carries. The recordings may be designed as mechanical mountings for a respective security element or as surface areas of the carrier web 36 provided with a release layer, on which the security elements detachably adhere. The carrier web 36 is unwound from the supply reel 34 and guided by means of a deflection roller 38 to a transfer roller 40, which cooperates with a counter-roller 42. Transfer roller 40 and counter roller 42 form a gap through which the first paper web 16 is conveyed. The carrier web 36 and the paper web 16 are synchronized with each other in their movement speeds. The transfer roller 40 has transfer punches 44, which transfer the security elements 2 individually from the carrier web 36 to the first paper web 16. The transfer roller 40 thus acts as an applicator for placing the scattered security elements placed on the first paper web 16, whereas the carrier web 36 acts as a feeder for supplying prepared and isolated security elements.

This structure is particularly capable, as in Fig. 5 schematically indicated to apply several security features 2 within a benefit 5.

In one embodiment, the transfer punches 44 are matched to the pattern of the security elements 2 on the carrier web 36. In another embodiment, the transfer stamps 44 are individually extendable. Basically, the transfer roller 40 includes a plurality of transfer punches 44; the representation of Fig. 5 is greatly simplified in this regard. Individually extendable transfer stamps 44 have the advantage that the pattern and possibly also the size of the security elements 2 on the carrier web 36 can be changed without the transfer roller 40 having to be exchanged necessarily. It suffices for applications to adapt the activation of the extendable transfer stamps 44.

In the presentation of the Fig. 5 the security elements 2 are located on the underside of the carrier web 36, since they are transferred from the transfer roller 44 to the underlying first paper web 16. They are in for better clarity Fig. 5 dashed at the top of the carrier web 36 (the term top is to the representation in Fig. 5 referenced). The carrier web 36, from which all or some security elements have been detached, is then wound on a winding 46.

The 6 and 7 show a second embodiment of the applicator 32. In this case, the security elements are not transmitted from a carrier web by means of transfer roller, but from a circulating transfer belt 48. As the carrier web 36 in the embodiment of Fig. 4 and 5 the transfer belt 48 passes over deflection rollers 38 and at a speed which is synchronized with that of the first paper web. The transfer roller 40, together with the counter-roller 42, transmits the security elements to the first paper web 16. The transfer belt 48 is equipped by a dispenser 50 with individual security elements 2, which conveys the security elements 2 and deposits them on a transfer station 48 at a delivery station 52. In this case, in embodiments, a plurality of dispensers 50 can be used in parallel. The dispensers 50 are adjustable with respect to the location of their dispensing stations 52 on the transfer belt 48, so that the location where the security elements 2 are deposited on the transfer belt 48 is controlled. Fig. 7 schematically shows an embodiment for the dispenser 50. It comprises a carrier web 54, on which the isolated security elements 2 are conveyed. The carrier web 54 is guided over guide rollers 56 and outputs the security elements 2 on the transfer belt 48 at the delivery station 52. The delivery location can be adjusted by means of an adjustment device 58 illustrated by a cross arrow. This is controlled by a control unit 60. The dispenser 50 or the dispensers 50 are designed such that at least one security element 2, preferably two or more security elements, can be stored on the corresponding locations of the transfer belt 48 assigned to the utility 5 per use 5. In Fig. 7 this is illustrated schematically for an illustrated utility 5.

The carrier web 54 may be a carrier web similar to the carrier web 36 on which the security features 2 are delivered. in the Difference to the carrier web 36, however, no multi-row arrangements of security elements are provided. Alternatively it is possible by a dashed in Fig. 7 drawn dosing device 62 to equip the carrier web 54 with security elements, for example, from a stack of security elements that are pre-produced.

Fig. 8 shows a third embodiment of the applicator 32. This is designed so that it with a dispenser 50 similar to that of 6 and 7 directly the first paper web 16 equipped with security elements 2.

The use of dispensers 50 generally has the advantage that the speed of the carrier web 54 may differ from the speed of the first paper web 16 (which, of course, must correspond to the speed of the transfer belt 48).

The security elements are preferably security elements made of paper, for example planchettes or so-called mottled fibers. The application of such individual paper security elements allows fibers and elements of greater titre and larger area to be used than in the conventional application of liquid phase mottling fibers such as those disclosed in the foregoing WO 2005/124023 A1 were made. There was a risk of Melierfaserausrisse when printing, if the titer of the mottled fibers was chosen too large, so that an embedding of the fibers was not strong enough. Therefore, in this prior art, it was necessary to limit the titer of the mottled fibers to a maximum of 20 dtex. In embodiments of the invention, however, a titer of mordant fibers of 30 dtex and greater is used.

LIST OF REFERENCE NUMBERS

1

bill

2, 3

security element

4

security paper

5

individual benefits

6

paper machine

8, 10

cylinder machine

12, 20

Round Screen

14, 16

paper web

18

headbox

22

pick-

24

couch roll

26

Total paper web

28

Kitchen sink

30

security thread

32

applicator

34

supply spool

36

support web

38

idler pulley

40

transfer roller

42

backing roll

44

transfer temple

46

winding

48

transfer tape

50

donor

52

dispensing station

54

support web

56

idler pulley

58

adjustment

60

control

62

metering

Claims (14)

A manufacturing apparatus for a multi-ply security paper (4) comprising a first wet end (8) which forms a first paper web (16) and a second wet end (10) which forms a second paper web (14), - A device (32) for applying security elements (2) on the first paper web (16) and - a Gautscheinrichtung (24) for connecting the first and the second paper web (16, 14) to a total paper web (26), wherein the Gautscheinrichtung (24) of the means (32) is arranged downstream for the application of security elements, wherein the means (32) for applying security elements - A supply means (36, 48, 54) for supplying prepared and isolated security elements (2) and - An applicator (40, 52) for applying the isolated security elements (2) on the first paper web (16), and wherein the applicator (40, 52) and / or the supply means (36, 48, 54) is arranged for transversely placed application of the isolated security elements (2). Manufacturing device according to claim 1, characterized in that the production device has a separating device for separating the total paper web in useful size (5), and the application device (40, 55) for applying a plurality of the isolated security elements (2) within a useful size (5) with - in particular transversely adjustable relative position of the security elements (2) is formed. Manufacturing device according to claim 1 or 2, characterized in that the supply device has a transfer path (36, 48) on which the isolated security elements (2) are arranged, and the application device comprises a transfer roller (40) for transferring the security elements to the first paper web , Manufacturing device according to claim 3, characterized in that the transfer web has seats for holding the separated security elements (2) and the transfer roller (40) has punches (44) which press the security elements (2) out of the seats and onto the first paper web (16 ), wherein the punch (44) are preferably individually extendable. Manufacturing device according to claim 3, characterized in that the supply device comprises at least one dispenser unit (50) having a dispensing station (52) for dispensing the security elements to the carrier web, wherein the dispenser unit (50) with respect to the transversal position of the dispensing station (52 ) is adjustable to the transfer web (48). Manufacturing device according to claim 1 or 2, characterized in that the supply device comprises a feed belt (54) with isolated security elements (2) and the applicator (32) is formed as the first paper web transversely adjustable discharge end (52) of the feed belt (54). Manufacturing device according to one of claims 1 to 6, characterized in that the position of the security elements on the first paper web is transversely and longitudinally adjustable. Manufacturing method for a multi-ply security paper, in which a first paper web is formed by means of a first wet end of a paper machine, and a second paper web is formed by means of a second wet end, - Safety elements are applied to the first paper web and - first and second paper web are then joined by Gautschen to a total paper web, characterized in that - The security elements are prepared and supplied sporadically and placed with adjustable transversal position placed on the first paper web. Manufacturing method according to claim 8, characterized in that , the isolated security elements are applied within a single-use size with adjustable relative position of the security elements to each other, wherein the single-use size is defined by a subsequent separation of the total paper web to individual security papers. Manufacturing method according to claim 8 or 9, characterized in that the isolated security elements are fed to a carrier web and are transferred from there by means of a transfer roller to the first paper web. Manufacturing method according to claim 10, characterized in that the isolated security elements on the carrier web are fed in a grid or transversely adjustable. Manufacturing method according to claim 10 or 11, characterized in that the isolated security elements are held in recordings of the carrier web and pressed by one of the stamp of a transfer roller from the receptacles and transferred to the first paper web. Manufacturing method according to claim 10 or 11, characterized in that the isolated security elements from at least. A dispenser unit are discharged onto the carrier web in - in particular transversely - adjustable position to the carrier web. Manufacturing method according to claim 8 or 9, characterized in that the isolated security elements from at least one dispenser unit are dispensed directly onto the first paper web and in an adjustable transversal position relative to the first paper web.

Images