CN105263719B - The method of Security element of the manufacture with characters cut in intaglio word - Google Patents

The method of Security element of the manufacture with characters cut in intaglio word Download PDF

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Publication number
CN105263719B
CN105263719B CN201480017065.5A CN201480017065A CN105263719B CN 105263719 B CN105263719 B CN 105263719B CN 201480017065 A CN201480017065 A CN 201480017065A CN 105263719 B CN105263719 B CN 105263719B
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CN
China
Prior art keywords
security element
functional layer
layer
functional
against corrosion
Prior art date
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Active
Application number
CN201480017065.5A
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Chinese (zh)
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CN105263719A (en
Inventor
W.霍夫米勒
M.拉姆
A.劳赫
T.伯查德
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quartech Currency Technology LLC
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Giesecke and Devrient GmbH
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Publication of CN105263719A publication Critical patent/CN105263719A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373Metallic materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41MPRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14Security printing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/369Magnetised or magnetisable materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/405Marking
    • B42D25/425Marking by deformation, e.g. embossing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/405Marking
    • B42D25/43Marking by removal of material
    • B42D25/445Marking by removal of material using chemical means, e.g. etching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/45Associating two or more layers
    • B42D25/455Associating two or more layers using heat
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/45Associating two or more layers
    • B42D25/46Associating two or more layers using pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40Manufacture
    • B42D25/45Associating two or more layers
    • B42D25/465Associating two or more layers using chemicals or adhesives
    • B42D25/47Associating two or more layers using chemicals or adhesives using adhesives

Abstract

The present invention relates to a kind of method for being used to produce the Security element (1) with characters cut in intaglio word (3), comprise the following steps:A) the first Security element subcomponent (10) is produced in the following way:First vector substrate (11) is provided;First functional layer (12) is applied to first vector substrate (11);Resist layer (30) is applied to first functional layer (12) in the form of predetermined pattern (7), the predetermined pattern has region against corrosion (33) and the groove (34) between region against corrosion;B) the second Security element subcomponent (20) is manufactured in the following way:Second support substrate (21) is provided;Second functional layer (22) is applied to the Second support substrate (21);C) the first Security element subcomponent (10) and the second Security element subcomponent (20) are assembled into compound (5), so that resist layer (30) and the second functional layer (22) are to each other, and the first Security element subcomponent (10) and the second Security element subcomponent (20) are bonded together;D) the Second support substrate (21) is departed from from cohesive compound (5), due to foring the second functional layer (23), so second functional layer (22) remains adhered to the region against corrosion (33), simultaneously, other regions of second functional layer (22) depart from together with the Second support substrate (21), and the second groove (24) is formed in second functional layer (22);And the region do not protected by region against corrosion (33) of first functional layer (12) e) is removed by etching; with the first functional area of formation (13) and the first groove (14), characters cut in intaglio word (3) is formed together with the second groove (24) in the second functional layer (22) that first groove is made with the groove (34) in the resist layer (30) and by erosion resistant.

Description

The method of Security element of the manufacture with characters cut in intaglio word
Technical field
It is used to manufacture the method for Security element, a kind of Security element obtained by this method, one the present invention relates to a kind of The method equipped with the valuable object of the Security element and a kind of this valuable object of manufacture is planted, the Security element includes two Registering patterned layer each other, especially with transmitted light and preferably also under incident light can visual identity symbol figure Pattern layer, Security element is configured to transferring member.
Background technology
Valuable object, especially such as banknote, share, identity card, credit card, contract, check and other there is forgery risk The valuable document of bill (identity document such as, with various species) also have the bag of brand article and brand article Dress, generally for security purpose equipped with Security element, Security element can detect their authenticity, function simultaneously as to not awarding Weigh the protection replicated.Security element can have the form of such as anti-counterfeiting line or label or can combine into or be applied to valuable object Or any other form of cheque paper, thus, the present invention is intended to " valuable object " be protection forge any object, especially Valuable document, and " cheque paper " is the precursor of valuable document, it is also not adapted to circulation.
Security element is typically the sandwich type element with multiple functional layers.Functional layer is with some attributes or can be visually Or the fairly common layer of the other attributes detected by machine.Therefore, functional layer includes such as dyestuff, luminescent substance, thermotropic Color substance, liquid crystal, coated interference pigment, conductive materials, magnetisable material, optical diffraction or light refractive structure or combinations thereof.Functional layer It is generally configured geometry or pattern or pattern, i.e. in layer, there is the functional area with detectable properties (such as lighting) Gap therebetween.When multiple functional layers, which are arranged to one, is located at another top, it is usually desirable to by independent functional layer Functional area and gap are configured to one with accurate registering (that is, with high registration accuracy) and are located at another top, functional area There is clearly demarcated contour edge between gap.In this way, One function layer can be hidden in another lower section, for example, magnetisable material exists Below color layers, or the Security element with multiple functional layers He " characters cut in intaglio word (negative script) " can be manufactured.
Security element with characters cut in intaglio word has the transparent substrates with least one nontransparent coating, and at least one is nontransparent Coating has gap (characters cut in intaglio word).Such as the gap can have arbitrary form, any type of letter, numeral or figure, especially It is line graph.Therefore, term used herein " characters cut in intaglio word " includes any form of gap in nontransparent coating, i.e., There is no all region covering.Carrier substrates are more transparent, i.e. more printing opacity, then the contrast between coating zone and uncoated region is brighter It is aobvious.In the case of very transparent substrates, characters cut in intaglio word can be recognized significantly under incident light, and in the feelings of less transparent substrate Under condition, it can only distinguish in transmitted light.It is when this Security element with characters cut in intaglio word has two difference in functionality layers, such as golden The pattern of non-ferrous metal coating form and identical patterns as red printing ink thereon, the pattern is from side to beholder Golden form is presented, is presented red in opposite side.
Due to required high registration accuracy, this multilayer pattern is difficult to copy.Especially, the pattern with characters cut in intaglio word is provided Good protection to forgery, because error during fabrication is particularly susceptible for recognizing in transmitted light, " original " during forgery is tasted Examination can be immediately recognized (such as with the duplicating of color copy machine), also such even for naked eyes.
Anti-tamper security is higher, and the structure in the functional layer with pattern registering each other is finer.However, even for quilt Authorize for producer, challenge is it is also proposed to construct the very fine structure with clearly demarcated profile with perfectly registering each other. Known many methods construct in gap in multiple overlapping functional layers with accuracy registration, i.e., as one man construct in all layers.
Understand to produce characters cut in intaglio word in functional layer by printing-ink from WO92/11142, printing-ink can pass through heat Effect activation.Printing-ink is imprinted on below functional layer with desired cloudy written form, and comprising wax additive or blowing promotor, During heating, wax additive or blowing promotor soften or isolate gas, thus produce foaming structure.As a result, be printed with can In the region for activating printing-ink, adhesion reduces, and functional layer can be removed mechanically in this region.
DE102007055112 discloses a kind of registration for the characters cut in intaglio word being used in multiple functional layers (that is, consistent) construction Method, it is using the printing-ink printed below functional layer with the cloudy written form to be constructed, and characters cut in intaglio word includes such group Into part, it produces the off-set oil for causing to be pointed on the coating of top when radiating or heating or contacted with flushing liquid The process of a part of applying power of ink, so that coating splits.The power can be applied by gas, and gas constitutes portion by printing-ink Divide when contacting, radiated and/or heating with flushing liquid and produce, or produced by the sweller in printing-ink, it is molten Swollen dose expands when being contacted with flushing liquid.Once laminated coating splits, it is easier to be approached and rinsed out with flushing liquid.
Methods described is gratifying, except have to construct very fine construction.WO2010/015384A2, which is described, to be carried For the method with high contour sharpness pattern consistent with registration accuracy or figure.Basic concept is using cohesible against corrosion Layer constructs consistent figure in two functional layers.Therefore, resist layer is it is expected that graphic form is applied to the first functional layer.Pass through The region do not protected by resist of the first functional layer is removed, the figure is accurately reproduced in the first functional layer.Then, pass through The second functional layer and resist are bonded, the figure is reproduced in the second functional layer.The bonding only contacts against corrosion in the second functional layer Occur in the region of agent.Then, the non-bonded region of the second functional layer is removed, while adhesion area is not removed, so that second The figure of resist layer and the first functional layer is accurately reproduced in functional layer.
The difficulty that the method for WO2010/015384A2 descriptions is related to is that the thermoplasticity used paint against corrosion is in environment temperature Must be not glutinous down.During due to by not having close with printed thermoplastic paint against corrosion the step of resist adhesive function layer Between relation, so being substantially limited using the possibility of cross-linked binder system.This causes resist to lack the resistance to solvent.It is special Not, the solvent used in the step of printing the thermoplasticity resist accordingly used causes polymer to dissolve.As a result, in spite of The functional layer transferred in transfer step, the expansion of thermoplasticity resist is still resulted in using chromatography of the correspondence containing solvent system.Moreover, can Can there are infringement, such as metal compound to any structure being stamped in functional layer.In addition, still forever lacking the layering to being obtained The repellence of separate solvent on compound.
Based on this, the present invention based on provide it is a kind of be used for manufacture Security element method purpose, this method with it is above-mentioned existing There is technology to compare to improve to some extent, and allow at least partially to construct consistent figure or pattern in two overlapping layers.
The purpose of the present invention is provided in particular in a kind of Security element with two patterned layers, and two patterned layers have each other Corresponding figure or pattern, the figure or pattern corresponded to each other have high registration accuracy, and Security element has improved repellence, And there is higher process reliability in manufacture view.
The preferred purpose of the present invention is to provide a kind of Security element with two metal compounds, two metal compounds difference With stamping structure, metal compound exists in the form of two patterned layers with the figure corresponded to each other or pattern, right each other The figure or pattern answered have high registration accuracy, and Security element has improved repellence, and in manufacture view with higher Process reliability.
The purpose is by the manufacture method with the feature according to independent claims, Security element and transfer materials come real It is existing.The development example of the present invention is the theme of dependent claims.
The content of the invention
1st, a kind of (the first aspect of the present invention) manufacture is used for cheque paper or valuable object, particularly for the anti-of valuable document The method of pseudo- element, the Security element has characters cut in intaglio word, and methods described has steps of:
A) the first Security element local element is manufactured in the following way,
A1) first transparent or semitransparent carrier substrates are provided,
A2 the intermediate layer that the first functional layer) is applied to first vector substrate or previously applied,
A3) resist layer is applied to first functional layer in the form of predetermined pattern, the predetermined pattern has against corrosion Region and the gap between region against corrosion,
B) the second Security element local element is manufactured in the following way,
B1) Second support substrate is provided,
B2 the second functional layer) is applied to the Second support substrate or the intermediate layer previously applied,
C) the first Security element local element and the second Security element local element are assembled into compound so that resist layer With the second functional layer to each other, and preferably under elevated pressure and elevated temperature, the first Security element is bonded local Element and the second Security element local element,
D) the Second support substrate is departed from from cohesive compound, second functional layer remains adhered to described anti- Region is lost, to construct the second functional area, meanwhile, other regions of second functional layer are together with the Second support substrate Depart from, so that the second gap is constructed in second functional layer, and
E) by etching removal first functional layer not by the region of locality protection against corrosion, to form the first functional areas Domain and the first gap therebetween, first gap and the gap in the resist layer and be made up of erosion resistant described second The second gap in functional layer forms characters cut in intaglio word together.
2nd, the method for (preferred embodiment) as described in the 1st, wherein, first Security element is manufactured in the following way Local element:
- the first vector substrate is provided;
- the first impressing enamelled coating as intermediate layer is applied to the first vector substrate;
- it is applied to the first impressing enamelled coating using the first metal compound as the first functional layer;
- the first impressing enamelled coating is imprinted before or after the first metal compound is applied;And
- resist layer is applied to the first metal compound, the resist layer has region against corrosion and gap, or Region and gap against corrosion are formed in resist layer.
3rd, the method for (preferred embodiment) as described in the 1st or 2, wherein, it is false proof that described second is manufactured in the following way Element local element:
- the Second support substrate is provided;
- the second impressing enamelled coating as intermediate layer is applied to the Second support substrate;
- it is applied to the second impressing enamelled coating using the second metal compound as the second functional layer;
- the second impressing enamelled coating is imprinted before or after the second metal compound is applied.
4th, the method for (preferred embodiment) as any one of the 1st to 3, wherein, second functional layer by nickel, Chromium, silver or gold are formed or formed by nickel alloy, evanohm, silver alloy, billon or aluminium alloy against corrosion.
5th, the method for (preferred embodiment) as any one of the 1st to 4, wherein, first functional layer is by aluminium shape Into.
6th, the method for (preferred embodiment) as any one of the 1st to 5, wherein, second functional layer by with The metal compound of magnetic attribute, especially nickel are formed.
7th, the method for (preferred embodiment) as described in the 6th, wherein, second functional layer is the metal compound of nickel, the Two functional areas are adapted to provide for magnetic coding.
8th, the method for (preferred embodiment) as described in the 7th, wherein, second functional area has particularly by impressing Obtainable structure, the structure is adapted to provide for high-resolution magnetic coding.
9th, (the second aspect of the present invention) a kind of Security element with characters cut in intaglio word, the Security element is for being attached or extremely Partially combine in cheque paper or valuable object, especially in valuable document, the Security element passes through such as the 1st to 8 Any one of method obtain.
10th, (the third aspect of the present invention) one kind be used for by Security element be transferred to cheque paper or valuable object, than if any The transfer materials of value document, wherein, the transfer materials have the false proof member as described in the 9th for being largely configured to transferring member Part.
11st, (the fourth aspect of the present invention) is a kind of is used to manufacture cheque paper or valuable object, such as the method for valuable document, Wherein, the Security element as described in the 9th is applied to cheque paper or valuable object substrate or be at least partly integrated to false proof In paper or valuable object substrate.
Such as the manufacture method described in WO2010/015384A2 (be referred to as in the text " file D1 "), according to the present invention, make With cohesible resist layer to construct consistent figure in two functional layers, especially in metal compound.Therefore, resist layer to The form of figure is hoped to be applied to the first functional layer.
Produce in the method for the metal compound of both sides registration, implement the steps of in being used for described by D1:
Step 1:Impressing enamelled coating (label 15 in D1 Fig. 2 a) is provided.
Step 2:Aluminum metallization (label 12 in D1 Fig. 2 a) is provided.
Step 3:Resist layer (label 30 in D1 Fig. 2 a) is provided.
Step 4:(see D1 Fig. 2 a and 2b, especially obtained by etching metallization removal after metallization removal step Metal compound 12 in Fig. 2 b).
Step 5:Manufacture metal donor paper tinsel (see D1 Fig. 2 c).
Step 5.1:Impressing enamelled coating (label 25 in D1 Fig. 2 c) is provided.
Step 5.2:The aluminum metallization (label 22 in D1 Fig. 2 c) of non-secure adhesion is provided.
Step 6:Under elevated pressure and elevated temperature by resist layer (label 30 in D1 Fig. 2 b) with it is non-firmly The metal compound (label 22 in D1 Fig. 2 c) of adhesion is combined, so as to obtain compound (label 5 in D1 Fig. 2 d).
Step 7:Separation-winding step, wherein, the Security element local element of two connections is pulled open, to provide in both sides The metal compound (label 1 in D1 Fig. 2 e) of registration.
It is necessary under the temperature action of the paint against corrosion applied in step 3 in step 6 during described by file D1 It is still printable and sticky.The fact has the result that, wherein, select suitable adhesive to be subject to significant restrictions. Process sequence described by D1 can not change in a straightforward manner because for example, if by etching metallization removal postpone to Latter method step, then being adhered to the aluminium of the exposure of resist (label 22 in D1 Fig. 2 d) in step 6 can also be etched Fall.
The present invention is based on from impressing enamelled coating transfer, except the metal or metal alloy of aluminium, the metal or metal alloy can in aluminium It will not be etched or metallization removal under conditions of metallization removal.This repellence metal can pass through paint against corrosion or adhesive Printed pattern and structuring, and will not be suffered damage in the case where removing the process conditions of general aluminum metallization.
Brief description of the drawings
Hereinafter with reference to preferred exemplary embodiment together with accompanying drawing, more closely illustrate advantages of the present invention, accompanying drawing Do not drawn by actual proportions and true scale, to increase explanation value.In accompanying drawing:
Fig. 1 is the perspective view of the Security element according to the present invention.
Technological processes of Fig. 2 a-2e in Security element of the manufacture according to the present invention, A-A ' passes through Fig. 1's false proof along The section of element is represented.
Embodiment
Fig. 1 shows the Security element 1 according to the present invention watched in transmitted light.Security element 1 has at least following layers: Transparent substrates 11, the first and second functional layers (patterned layer) and the resist layer for bonding the first and second functional layers.Exemplary In embodiment, two patterned layers are of the same size and shape, and only partially cover carrier substrates 11.Certainly, patterned layer Carrier substrates can be also covered in whole region.In addition, one of patterned layer can only partially cover another patterned layer or with it is another Patterned layer is partly overlapping.
In the embodiment of the Security element according to the present invention shown in Fig. 1, two triangles of the patterned layer formation with line 4 Shape figure 7, line 4 is formed by the functional area (being bonded by resist) of functional layer (patterned layer).Line 4 is separated by gap 3, gap 3 are formed by functional area gap consistent with resist layer.The width y changes of line 4, so that can be under perspective view via anti- Pseudo- element perceives spirte 7 ', is in the embodiment shown another triangle.
Certainly, functional area need not be presented in the form of parallel lines, but can have any other form.
Which kind of pattern beholder perceives depending on the first He under the incident light view of front side and under dorsal part incident light view The particular design of the functional area of second functional layer.
Fig. 2 shows manufacture according to technological process during Security element 1 of the invention.Show along Security element shown in Fig. 1 Line A-A ' section.Sequence of layer is only illustrated by way of example.
Fig. 2 a show the first Security element local element 10, and it is by first vector substrate 11 (such as by poly terephthalic acid The paillon foil that glycol ester (PET) is made), be applied to thereon impressing enamelled coating 15 (have the impressing diffraction knot with aluminum metallization Structure 15 ') constitute.An enamelled coating 30 against corrosion, the paint against corrosion are printed again in aluminum metallization the first functional layer 12 of formation, the first functional layer Layer is the form of the figure with region 33 against corrosion and gap 34 (being located between region against corrosion).Diffraction structure 15 ' continues in work( Diffraction structure 12 ' is served as in ergosphere.
Fig. 2 b are shown through the second Security element local element 20 to be combined with the first Security element local element 10 Section.Second Security element local element 20 is by Second support substrate 21, the second functional layer 22 and the structure of impressing enamelled coating 25 therebetween Into.In impressing enamelled coating 25, impressing has diffraction structure 25 ', and the diffraction structure continues to serve as diffraction structure in functional layer 22 22’.Second functional layer 22 is nickel metallization thing.Before metal compound 22 is applied, impressing paint 25 is molten with aqueous tenside Liquid is rinsed out so that metal compound 22 deficiently sticks to impressing and painted.
Fig. 2 c show Fig. 2 a the first Security element local element 10 and Fig. 2 b the second Security element local element 20 such as What is assembled into compound 5.
Two local elements are pressed together, so that the diffraction structure 22 ' of the second functional layer 22 is transferred to area against corrosion In domain 33, because the resist used is deformable paint against corrosion.By region 33 against corrosion, the local member of the first Security element Part and the second Security element local element are bonded together.
Two Security element local elements can be pressed together with single-stage or multi-level approach, i.e., two local elements are excellent Selection of land is pressed in heating roller with one (single-stage pressing) or multiple (multistage is pressed) so-called stack at elevated temperatures Together, or, two local elements are pressed together on multiple heating rollers, and multiple heating rollers are respectively equipped with one or many Individual so-called stack (multistage pressing).Multistage pressing can cause the especially firm connection of Security element local element, and this takes Certainly in corresponding embodiment.When using multiple heating rollers, temperature progress can be also realized during pressing.
After bonding, and cooling down if necessary and after certain stand-by period of stable bonding connection, for example, passing through Separation winding imprints enamelled coating 25 to peel off Second support substrate 21 and second.As a result as shown in Figure 2 d.Only the second functional layer 22 The region 23 contacted with region 33 against corrosion be adhered to the first Security element local element 10.The region forms the second functional areas Domain 23, the second functional area constitutes the accurate reproduction to the figure in region 33 against corrosion.Other regions of second functional layer 22 and the Two carrier substrates 21 and impressing enamelled coating 25 it is lifted-off together fall.
Fig. 2 e show the layer accumulation after with etchant process.By etching, the formed by aluminum metallization is removed The region do not protected by region 33 against corrosion of one functional layer 12, meanwhile, retain being protected by region 33 against corrosion for the first functional layer 12 Region, obtain so that these regions formed the first functional area 13.First functional area 13 constitutes the figure to region 33 against corrosion Accurate reproduction.Moreover, when using etchant process, retaining the second functional area 23 formed by nickel metallization thing.
Region 13,33 is accurately consistent respectively with 23, and the line 4 formed in Fig. 1 diagram.Gap 3 between line 4 is same It is accurately consistent, and in the functional layer 22 of gap 34 and second by the gap 14 in the first functional layer 12, in resist layer 30 between Gap 24 is formed.
Line 4 (being formed by the first functional area 13, the functional area 23 of region against corrosion 33 and second) is implementation shown in Fig. 2 respectively The carrier of diffraction structure in example.Diffraction structure can be such as holographic structure, with being preferably presented on the first functional area 13 and the second different holographic structures in functional area 23.In this case, beholder identifies Fig. 1 under transmitted light view Shown line graph, under the incident light view of front side, the side on front side of of viewing first vector substrate 11, i.e. the first functional layer 12 hologram, under dorsal part incident light view, watches the hologram of the second functional layer 22.
, can also be for example using Hot stamping foil as the second Security element local element.In this case, when separating winding only Second support substrate 21 is peeled off, is retained in while imprinting enamelled coating 25 on formed Security element 1.It can function simultaneously as protection Layer.Generally, advantageously, protective layer (not shown) is provided on the second functional area or the second functional layer, especially, is This, come off (casting) of such as diffraction structure 22 ' shown in Fig. 2 e or the diffraction structure 25 ' in functional layer 22 is capped, and Thus forgery behavior can not be carried out.
Be with reference to the special advantage of Fig. 2 a to 2e manufacturing method according to the invention described by way of example, on suitable for The adhesive for forming resist layer 30 is not whatsoever all limited.The adhesive used can be for example typical laminate adhesive Agent.Advantageously, using the adhesive with good printability and good metallic adhesion.Preferably, after bonding, environment temperature Viscosity under degree is very high, so that adhesive can not possibly be from one of two functional layers or metal compound uncontrolled outflow or stripping Fall.Using comprising solvent and both not solvent-laden adhesives.Adhesive can be a kind of composition or two kinds of compositions.In addition, Preferably, the adhesive used is very stable after solidification, so that being transferred to region against corrosion from functional layer or metal compound Diffraction or stamping structure no longer flow out, and are stable in terms of the pressure and solvent used in subsequent method and step.
The typical adhesive requirement to be met in the state of after physical dryness is:It is without glutinous at ambient temperature Thick.For cross-linked binder, the demand is not present.Therefore, particularly advantageously, resist layer is formed using cross-linked binder. In this way, can obviously reduce established diffraction or stamping structure in subsequent method and step by the danger destroyed.
In the step of being pressed together two Security element local elements, with being resisted described in file D1 based on thermoplasticity The technique of erosion paint is compared, and the temperature and pressure in laminating gap may be selected to considerably lower.Due to significantly warmer in laminating gap The condition of sum, causes have the higher free degree when selecting suitable substrate.Moreover, the condition of milder causes in laminating gap The castability of the diffraction or stamping structure that are transferred to region against corrosion from functional layer or metal compound is improved.
In order to implement manufacturing method according to the invention, the material of the first functional layer constitutes the material structure with the second functional layer Into being fitted to each other so that the second functional layer the step of for example by etching to remove the first functional layer in it is without prejudice.First Functional layer advantageously aluminum metallization.In order to form the second functional layer, suitably, the metal of such as nickel, chromium, silver or gold is used Compound or nickel alloy, evanohm, silver alloy, the metal compound of billon or aluminium alloy against corrosion.
When selecting nickel as metal compound, the product obtained by the method according to the invention extraly there is magnetic to belong to Property so that magnetic coding can be set in the product.Therefore, selection nickel metallization thing is come to form the second functional layer be particularly preferred 's.Due to the diffraction or stamping structure of nickel metallization thing, this functional layer can especially provide high-resolution magnetic coding.When Fig. 2 e institutes The Security element shown is applied to value document substrate so that the functional area 23 formed by nickel is towards value document substrate, and by Aluminium formation functional area 13 towards valuable document beholder when, when under incident light watch valuable document when, formed by nickel Be used for magnetic encode functional area 23 be hidden for beholder.
In another Advantageous variants example of Security element shown in Fig. 2 e, functional area 23 is formed by aluminium alloy against corrosion, function Region 13 is formed by aluminium.In this way, when watching Security element under front side incident light and dorsal part incident light, it is ensured that identical gold Belong to the marking of color.
In another Advantageous variants example of Security element shown in Fig. 2 e, functional area 23 is formed by copper or gold, functional area 13 are formed by aluminium.In this way, Security element is watched under front side incident light that ought be on the one hand and dorsal part incident light on the other hand When, the marking of different colours can be caused.
The carrier substrates of Security element local element used according to the invention are preferably paillon foil, for example by polypropylene, Polyethylene, polystyrene, polyester (especially makrolon or polyethylene terephthalate) are constituted.Transparent or semitransparent paper tinsel It is particularly preferred.When using this paper tinsel, the gap constructed in independent functional layer with accuracy registration can be substantially identified as Characters cut in intaglio word.
The application of functional layer is realized by the known method suitable for corresponding function layer, for example, passes through thing in the case of metal Physical vapor deposition (PVD).The application can be completed in whole region or only on regional area.
Functional layer can be constructed directly in carrier substrates, or can provide one or more intermediate layers.For some Functional layer, intermediate layer is definitely necessary, for example, when the pattern of functional layer be metalized holographic figure, Dynamic Graph (Kinegram), as When sketch map (Pixelgram) or other metallization diffraction structures.In this case, impressing enamelled coating is applied first, in metallization Before or after, desired diffraction structure is imprinted into impressing enamelled coating.Generally, liquid crystal layer also requires to provide the appropriate orientation of liquid crystal Intermediate layer.Suitable oriented layer can for example imprint the diffraction structure into impressing enamelled coating.Or, if necessary, can be with Suitably handle carrier foils.
Preferably, at least one in functional layer is metallization diffraction structure, such as metalized holographic figure.This for as The functional layer of metallization diffraction structure is particularly preferred, such as metalized holographic figure., should when hereinafter referring to hologram Understand, this, which also applies equally to other diffraction structures and refraction structure and so-called " no photo structure ", (has achromatism grating The raster image in region), as in WO2007/107235 A1 limit and described in (especially seeing claim 1).
In principle, the hologram or structural information project in the functional layer of the Security element of the present invention can with identical or It is different.Material for imprinting enamelled coating is known for the technician.Suitable impressing paint is for example in DE 10 2004 Disclosed in 035 979A1, it discloses the heat-sealing paint for also being used as impressing paint.
Resist applies preferably in the form of expecting figure and (for example printed).It is this suitable printing process to technology It is known for personnel.
The step of removing the region do not protected by resist of the first functional layer by etching can be for example by etchant To realize, such as alkali lye or acid solution.Suitable method is known for a person skilled in the art.
Characters cut in intaglio word can form such as coding or geometrical pattern or graphical pattern.
In for example by separating the step of winding separates Second support substrate from the compound of bonding, the second Security element The carrier substrates of local element are separated together with each several part of the functional layer of the second Security element regional area.Accordingly, it would be desirable to work( Ergosphere only has low adhesion to carrier substrates.
By ignoring the adhesion measures to promote between carrier substrates and functional layer, required low adhesion passes through many functions Layer material is obtained, and is obtained particularly by metal compound.In addition, taken between the individual course of Security element adhesion measures to promote be General, corresponding precautionary measures are known for the skilled person.
, can be by using suitable additive treating carrier substrates when the adhesion between carrier substrates and functional layer is too high To reduce adhesion.For example, available water and/or solvent flush with or without appropriate addn falls carrier substrates.Properly Corresponding additive be such as surface reactive material, defoamer or thickener.Additive may also be combined with into carrier substrates in itself in. Or, adhesion reduction layer can be provided under functional layer.For adhesion reduction layer, material as selection, on material surface, Known is generally to occur poor adhesion, such as silicide, the layer comprising releasing agent (such as Byk 3500), wax, UV curing paint, metal compound, untreated foil (such as PET).By adjusting carrier substrates or adhesion reduction layer and the work(to be peeled off The surface energy ratio of ergosphere, can obtain the being easily peeled off property of functional layer, thus in the functional layer of the second Security element local element Middle produce expects figure.
This is equally applicable to be presented on any intermediate layer between carrier substrates and functional layer, such as pressure for hologram Print enamelled coating.When this impressing enamelled coating or other intermediate layers are peeled off together with carrier substrates, between intermediate layer and functional layer (for example Impressing enamelled coating and be applied between metal compound thereon) adhesion must be correspondingly relatively low.If adhesion is too high, use The adhesion reduction layer processing intermediate layer of the additive or offer.Additive is reduced to intermediate layer or carrier base with adhesion when performing When bottom is handled, after departing from intermediate layer or carrier substrates, the residue of additive can retain on a functional.It is described residual Stay thing generally can be rinsed out with the aqueous solution, the pH of the aqueous solution is suitably adjusted, if necessary, the aqueous solution also includes surfactant. It is also possible with solvent washing.In the case of intractable, high pressure nozzle and/or mechanical support (felted terxture, brush it is also possible to use Son), but this is typically unwanted.Small additive residues " can also be burnt " by sided corona treatment.In many In the case of, the removal to additive residues can be also omitted completely.The protective paint suitably modulated can also adhere sufficiently to " load In the functional layer of additive ".
It can be set according to the Security element of the present invention in the form of transfer materials, i.e., it is a large amount of for what is transferred with preparing The paper tinsel or band of finished product Security element.In the case of transfer materials, the layer of Security element is accumulated with reverse order in carrier later Prepared on material, wherein, layer accumulation will be presented on later to be wanted on shielded valuable object, thus, the layer accumulation of Security element It can be prepared on a support material in endless mode or for use as the final profile shape of Security element.Security element is to will be protected The transfer of the valuable object of shield realizes that adhesive is generally arranged on transfer materials using adhesive, but can also be provided at On valuable object.Preferably, hot melt adhesive thing can be used for this purpose.When Security element is prepared in endless form, adhesive phase Transfer can be only provided in the Security element region to be transferred, or adhesive can be activated only in the region to be transferred. During or after Security element is transferred to valuable object, the carrier material of transferring member generally accumulates stripping from the layer of Security element From.For the ease of divesting, separating layer (releasing layer) may be provided at carrier material between the Security element part to be divested.It is necessary When, carrier material can be also retained on the Security element of transfer.
It can be used for the authenticity for safeguarding any kind of property according to the Security element of the present invention.They are preferably used for dimension Protect the authenticity of valuable document, such as banknote, check or identity card.In this way, they may be arranged on the surface of valuable document or It is wholly or partially embedded into valuable document.Particularly advantageously, they are used to cover the hole in the porose valuable document of tool.Therefore, According to the excellent of the Security element of the careful registered graphics that there are transparent carrier substrates and watched from valuable document both sides of the present invention Point is especially able to wide dispersion.Characters cut in intaglio word with very fine structure and spirte can also be recognized substantially in transmitted light.It It is practically impossible to by adulterator with according to the precision analog that obtains of the present invention.Security element is divested to be transferred to them separately One valuable object is also actually impossible, because always including at least two adhesives according to the Security element of the present invention Layer, i.e., they are comprising bonding resist layer, and are connected to together with adhesive phase valuable object to be protected.When false proof for bonding The adhesive of element and valuable object is similar with the paint against corrosion in the layer accumulation of Security element in terms of its chemically and physically attribute When, the layer of Security element is deposited in divest and is always destroyed in trial.

Claims (12)

1. a kind of method for manufacturing the Security element (1) for cheque paper or valuable object, the Security element has characters cut in intaglio word (3), methods described has steps of:
A) the first Security element local element (10) is manufactured in the following way,
First transparent or semitransparent carrier substrates (11) a1) are provided,
A2) the intermediate layer (15) that the first functional layer (12) is applied to first vector substrate (11) or previously applied,
A3 resist layer (30)) is applied to first functional layer (12), the predetermined pattern tool in the form of predetermined pattern (7) There are region against corrosion (33) and the gap (34) between region against corrosion,
B) the second Security element local element (20) is manufactured in the following way,
Second support substrate (21) b1) is provided,
B2 the second functional layer (22)) is applied to the Second support substrate (21) or the intermediate layer (25) previously applied,
C) the first Security element local element (10) and the second Security element local element (20) are assembled into compound (5), made Obtain resist layer (30) and the second functional layer (22) to each other, bond the first Security element local element (10) and second false proof yuan Part local element (20),
D) the Second support substrate (21) is departed from from cohesive compound (5), second functional layer (22) keeps adhesion To the region (33) against corrosion, to construct the second functional area (23), meanwhile, other regions of second functional layer (22) with The Second support substrate (21) departs from together, so that the second gap (24) is constructed in second functional layer (22), with And
E) region do not protected by region against corrosion (33) of first functional layer (12) is removed by etching, to form the first work( Can region (13) and the first gap (14) therebetween, first gap is with the gap (34) in the resist layer (30) and by resisting The second gap (24) in second functional layer (22) that corrosion material is constituted forms characters cut in intaglio word (3) together,
First functional layer (12) is formed by aluminium, i.e., formed by the metal without magnetic attribute;And
Second functional layer (22) is formed by the metal compound with magnetic attribute.
2. the first Security element office is the method for claim 1, wherein bonded under elevated pressure and elevated temperature Portion's element (10) and the second Security element local element (20).
3. the first Security element local element is the method for claim 1, wherein manufactured in the following way (10):
- the first vector substrate (11) is provided;
- the first impressing enamelled coating (15) as intermediate layer is applied to the first vector substrate (11);
- it is applied to the first impressing enamelled coating (15) using the first metal compound (2) as the first functional layer;
- the first impressing enamelled coating (15) is imprinted before or after the first metal compound (15) is applied;And
- resist layer (30) is applied to the first metal compound (12), the resist layer have region against corrosion (33) and Gap (34), or region against corrosion (33) and gap (34) are formed in resist layer.
4. the method as described in claim any one of 1-3, wherein, it is local that second Security element is manufactured in the following way Element (20):
- the Second support substrate (21) is provided;
- the second impressing enamelled coating (25) as intermediate layer is applied to the Second support substrate (21);
- it is applied to the second impressing enamelled coating (25) using the second metal compound (22) as the second functional layer;
- the second impressing enamelled coating (25) is imprinted before or after the second metal compound (22) is applied.
5. the method as described in claim any one of 1-3, wherein, second functional layer (22) formed by nickel, chromium or by Nickel alloy, evanohm, silver alloy or billon are formed.
6. the method as described in claim any one of 1-3, wherein, second functional layer (22) is formed by nickel.
7. method as claimed in claim 6, wherein, second functional layer (22) is the metal compound of nickel, the second functional areas Domain (23) is adapted to provide for magnetic coding.
8. method as claimed in claim 7, wherein, second functional area (23), which has, is adapted to provide for high-resolution magnetic volume The structure of code.
9. method as claimed in claim 8, wherein, the structure can be obtained by impressing.
10. one kind has the Security element (1) of characters cut in intaglio word (3), the Security element is used to be attached or combines at least in part In cheque paper or valuable object, the Security element can be obtained by the method as described in any one of claim 1 to 9.
11. a kind of transfer materials for being used to being transferred to Security element into cheque paper or valuable object, wherein, the transfer materials tool There are a large amount of Security elements as claimed in claim 10 (1) for being configured to transferring member.
12. a kind of method for manufacturing cheque paper or valuable object, wherein, by Security element as claimed in claim 10 (1) cheque paper or valuable object substrate are applied to or is at least partly integrated in cheque paper or valuable object substrate.
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DE102013005937A1 (en) 2014-10-09
WO2014161667A1 (en) 2014-10-09

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