EP0655032A1 - Anti-kopier-film oder -schicht für dokumente. - Google Patents
Anti-kopier-film oder -schicht für dokumente.Info
- Publication number
- EP0655032A1 EP0655032A1 EP93915945A EP93915945A EP0655032A1 EP 0655032 A1 EP0655032 A1 EP 0655032A1 EP 93915945 A EP93915945 A EP 93915945A EP 93915945 A EP93915945 A EP 93915945A EP 0655032 A1 EP0655032 A1 EP 0655032A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film
- layer
- covers
- opaque
- transparent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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- 238000000576 coating method Methods 0.000 title claims description 5
- 239000000463 material Substances 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 229920002120 photoresistant polymer Polymers 0.000 claims description 15
- 230000005855 radiation Effects 0.000 claims description 9
- 238000011161 development Methods 0.000 claims description 8
- 229920003023 plastic Polymers 0.000 claims description 8
- 238000007639 printing Methods 0.000 claims description 7
- 239000004033 plastic Substances 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 239000004922 lacquer Substances 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 239000000839 emulsion Substances 0.000 claims description 3
- 101150096316 5 gene Proteins 0.000 claims 1
- 239000010408 film Substances 0.000 description 86
- 239000010410 layer Substances 0.000 description 76
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- 206010073306 Exposure to radiation Diseases 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- -1 diazide compound Chemical class 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- BHQCQFFYRZLCQQ-UHFFFAOYSA-N (3alpha,5alpha,7alpha,12alpha)-3,7,12-trihydroxy-cholan-24-oic acid Natural products OC1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(O)=O)C)C1(C)C(O)C2 BHQCQFFYRZLCQQ-UHFFFAOYSA-N 0.000 description 1
- 239000004380 Cholic acid Substances 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012822 chemical development Methods 0.000 description 1
- BHQCQFFYRZLCQQ-OELDTZBJSA-N cholic acid Chemical compound C([C@H]1C[C@H]2O)[C@H](O)CC[C@]1(C)[C@@H]1[C@@H]2[C@@H]2CC[C@H]([C@@H](CCC(O)=O)C)[C@@]2(C)[C@@H](O)C1 BHQCQFFYRZLCQQ-OELDTZBJSA-N 0.000 description 1
- 229960002471 cholic acid Drugs 0.000 description 1
- 235000019416 cholic acid Nutrition 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- KXGVEGMKQFWNSR-UHFFFAOYSA-N deoxycholic acid Natural products C1CC2CC(O)CCC2(C)C2C1C1CCC(C(CCC(O)=O)C)C1(C)C(O)C2 KXGVEGMKQFWNSR-UHFFFAOYSA-N 0.000 description 1
- FSEUPUDHEBLWJY-HWKANZROSA-N diacetylmonoxime Chemical compound CC(=O)C(\C)=N\O FSEUPUDHEBLWJY-HWKANZROSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- SNWQUNCRDLUDEX-UHFFFAOYSA-N inden-1-one Chemical compound C1=CC=C2C(=O)C=CC2=C1 SNWQUNCRDLUDEX-UHFFFAOYSA-N 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229920003986 novolac Polymers 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
- B41M3/148—Transitory images, i.e. images only visible from certain viewing angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; 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
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/45—Associating two or more layers
- B42D25/465—Associating two or more layers using chemicals or adhesives
- B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; 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
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; 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
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/415—Marking using chemicals
- B42D25/42—Marking using chemicals by photographic processes
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/08—Photoprinting; Processes and means for preventing photoprinting
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/04—Preventing copies being made of an original
- G03G21/043—Preventing copies being made of an original by using an original which is not reproducible or only reproducible with a different appearence, e.g. originals with a photochromic layer or a colour background
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/02—Forms or constructions
- G09F3/0291—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
- G09F3/0292—Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time tamper indicating labels
-
- B42D2033/04—
-
- B42D2033/08—
-
- B42D2033/14—
-
- B42D2035/34—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; 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
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/45—Associating two or more layers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/913—Material designed to be responsive to temperature, light, moisture
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/914—Transfer or decalcomania
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24826—Spot bonds connect components
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- Y10T428/24851—Intermediate layer is discontinuous or differential
- Y10T428/24868—Translucent outer layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
Definitions
- the invention consists in an anti-copying film or layer for documents, consisting of a film or a layer of transparent material with a plurality of spaced-apart, at least partially opaque areas, the planes of which are roughly predetermined Position opposite the surfaces of the film or layer are arranged so that the anti-copying film is substantially opaque from an approximately perpendicular viewing angle to the surfaces of the film or layer and from a predetermined viewing angle to the surfaces of the film or the layer of anti-copy film is essentially transparent.
- Such a film which is intended to enable copy-proof documents, is effective in covering up graphic information and / or characters of a document or generally a piece of writing in a vertical line of sight, as is present in a copying machine, and the graphic information and / or characters to make it visible from a predetermined different point of view, related to the level of the document.
- such an anti-copying film is a transparent plastic film with an opaque surface or with an indented or sawtooth-shaped surface in which a first oblique or vertical surface is either black or reflective with respect to a vertical viewing angle, based on the level of the film or the document, and the other oblique surface is transparent from a different angle, so that the information or characters can be read.
- Such notched or sawtooth-shaped surfaces are very difficult to produce, since the surfaces first have to be embossed or hammered in, and then the inclined surfaces have to be provided with a black or reflective material, the accuracy of these operations having to be so great that the transparent surfaces are not affected drawn, ie also partially provided with black and reflective material.
- An anti-copy medium for writing or printing is known from AU-A-610 614, in which the medium contains a photosensitive color system which, when irradiated in a photocopier, makes the writing illegible or makes the copy clearly distinguishable from the original so that either the original becomes worthless or clearly recognizable as copied.
- Anti-copy film or layer for documents consisting of a film or a layer of transparent material with a plurality of spaced-apart, at least partially opaque areas, the planes of which are approximately in the same predetermined position with respect to the surfaces of the film or the layer are arranged so that the anti-copying film is essentially opaque from an approximately perpendicular viewing angle on the surfaces of the film or layer and from a predetermined viewing angle on the surfaces of the film or layer of the anti-copying film.
- the film is essentially transparent, in that each area is formed from at least first opaque covers on one of the surfaces of the film or layer and at least second opaque covers on the other of the surfaces of the film or layer, and in that the at least first and second covers essentially hori are arranged zonally.
- first and second covers can be arranged offset parallel to one another in horizontal planes.
- the first and second covers can have approximately the same width (in cross section) and can be arranged on a gap without significant overlaps.
- first and second covers it is also possible for the first and second covers to have approximately the same width and to be arranged on a gap with overlaps. It may also be appropriate to design the first and second covers with different widths.
- the covers can be applied as a line structure on both sides to a transparent film or layer, in particular in terms of printing technology.
- such a film according to the invention is characterized in that a first photosensitive layer is applied to a transparent film on the one hand, directly exposed and developed, and that a second photosensitive layer is subsequently applied to the transparent film on the other hand, directly exposed and is developed.
- a further practical training is given in that a first photosensitive layer is applied to a transparent film on the one hand, is directly exposed and developed, and that a second photosensitive layer is then applied to the transparent film on the other hand, indirectly through the first developed, photosensitive Layer and the film is exposed and developed.
- a further variant consists in that on the one hand a line structure and on the other hand a photosensitive layer is applied to a transparent film, and the photosensitive layer is exposed and developed through the line structure.
- the exposure can take place by means of parallel or divergent radiation, so that either there is almost no overlap of the covers or just one overlap.
- An advantageous embodiment results from the fact that, on the one hand, a negative resist layer is applied to a transparent film and a positive resist layer is applied to the other side, and both layers are exposed by exposure through a line structure mask from the side of the negative resist layer and both layers are washed out are formed.
- the photosensitive layer material can expediently be a photographic emulsion or else a plastic layer with photoinitiators.
- non-opaque layer material is made opaque before application, in particular by adding colors.
- a non-opaque layer material can be provided with opaque material, for example color, after the application, exposure and development at the raised or deepened areas.
- the finished layers with the covers can also be sealed against damage by means of a transparent lacquer coating.
- the at least partially opaque and / or reflective covers can be essentially in the form of strips and can be arranged approximately parallel to and equidistant from one another.
- Fig. 3 covers according to the invention, produced by double-sided photosensitive layers
- Fig. 10 is a multiple film version of the anti-copy film according to the invention.
- these covers are intended to cover optically.
- a very thin opaque and possibly additionally reflective layer is sufficient for this.
- the layer thickness can reach without further film thickness.
- the layers should be black or reflective.
- the copy protection film can be attached to the original to be protected using adhesive or other types of adhesive.
- the oblique opaque planes are said to be approximately 2.5 microns thick and approximately 25 microns apart. The implementation of such a theoretical copy protection film is not described.
- FIG. 1b shows a copy protection film 11 described in the same US Pat. No. 3,887,742 with a plastic material Z, which has a sawtooth-shaped surface 12, which likewise consists of transparent plastic.
- the oblique tooth flanks V should be black or reflective, while the vertical flanks W are transparent.
- the information on an original is erased or obscured with a vertical viewing or copying direction and the information is made visible with an oblique viewing direction (angular range ⁇ as stated above).
- FIGS. 2a and 2b Embodiments of the present invention are shown schematically in FIGS. 2a and 2b.
- the present invention takes the following route.
- Anti-copying films or layers here consist of a transparent film or a transparent layer S (hereinafter referred to only as film S), which is provided with approximately parallel and strip-shaped covers A, which are described above (AI ) and below (A2) on the film surfaces and with gaps L to each other and under defined (approx. ten) viewing angles as optical covers and at other viewing angles approximately 30-73 °, in particular approximately 45 ° to approximately 60 °, are intended to serve as optical openings.
- film S transparent film or a transparent layer S
- covers A which are described above (AI ) and below (A2) on the film surfaces and with gaps L to each other and under defined (approx. ten) viewing angles as optical covers and at other viewing angles approximately 30-73 °, in particular approximately 45 ° to approximately 60 °, are intended to serve as optical openings.
- the covers AI and A2 are arranged essentially horizontally, which means that although slight deviations from the horizontal plane are harmless, they are not necessary in the sense of the invention, such as the inclined plane arrangement in FIGS. 1a and 1b.
- the covers AI and A2 have the same or different dimensions as can be seen from the comparison of FIGS. 2a and 2b.
- FIG. 2a essentially the same widths of AI and A2 are used at the top and bottom, while in FIG. 2b the widths of the covers A2 'are larger than those of the covers AI'.
- the film thickness s is in the large range from approx. 5 ⁇ to approx. 300 ⁇ , in particular between approx. 20 ⁇ and 100 ⁇ .
- the film thickness s is practically in the range of
- the longer path (h) of the light rays must also take into account the fact that, in addition to the visible area, there is also an invisible area a on the document D which is "optically switched off" by the covers AI, A2.
- the value has the maximum value for a
- the anti-copy films 13 and 14 can be printed using all suitable printing methods with the parallel line structures (covers) AI, L; Manufacture A2, L or AI ', L' as well as A2 ', L' on one or both sides at the same time.
- the exact positioning of the covers AI and AI 'to their counterparts A2 and A2' is assumed and depends on the respectively given viewing angle ⁇ .
- the thickness of the printing layers is of the order of magnitude of less than 1 ⁇ m, so that the above fear of obtaining enlarged invisible areas a becomes irrelevant.
- the parallel line structures AI, L; A2, L or AI ', L' and A2 ', L' produced photographically by applying or coating photosensitive layers B1 or B2 one after the other on both sides of the film S.
- the layer B1 in a suitable technique, e.g. Laminating, spraying, etc., applied, then exposed through a mask Ml and developed in a suitable manner.
- a suitable technique e.g. Laminating, spraying, etc.
- Layer B2 is then applied, exposed through M2 (which corresponds to Ml and can also be Ml) and then developed. Exposure of layer B2 can expediently also take place through layer B1 which has already been exposed and developed. This would make the mask M2 obsolete.
- the exposure is carried out with suitable light sources and is symbolized by the arrows b.
- FIG. 4 shows a variant for producing the anti-copying film 15 in FIG. 3 using the anti-copying film 16.
- the line structure LS is applied to one side of the film S in terms of printing technology.
- the photosensitive layer B is then exposed through the print line structure, which thus takes over the mask function.
- the covers AI and A2 are exposed with parallel light radiation (collimated light) or divergent light.
- parallel light the arrangement of the covers AI and A2 does not overlap on the gap (FIG. 2a) and overlaps in the case of divergent light, as in FIG. 2b, for example.
- FIG. 5 shows an anti-copying film 17 with a photosensitive layer BN and FIG. 6 shows an anti-copying film 18 with a photosensitive layer BP.
- BN stands for negative photoresist material and BP for positive resist material.
- Negative photoresists are generally based on photopolymerizable mixtures which, in addition to a polymeric binder, contain a photopolymerizable compound with a photoinitiator. Such mixtures contain e.g. partially cyclized polyisoprene as a polymerizable compound and a diazide compound as a light-sensitive difunctional crosslinker (photoinitiator). Partially cyclized polybutadiene is also known as a polymerizable compound and diazides (see above).
- Positive-working photoresists are conventional systems consisting of a photo-insensitive alkali-soluble matrix based on novolaks and a photosensitive component which acts as a solubility inhibitor and is converted into alkali-soluble products by exposure, so that the entire exposed areas become soluble in the alkaline development solvent.
- Resists for the short-wave UV range are also e.g. Poly-methyl methacrylate, copolymers of methyl methacrylate and indenone and of methyl methacrylate and 3-oximino-2-butanone are known as photoactive components.
- Two-component systems composed of a poly-methyl-methacrylate-co-methacrylic acid matrix and o-nitrobenzyl esters are also known, e.g. Esters of cholic acid, as solubility inhibitors ..
- Suitable photoresist materials can be selected for the purpose of the invention, if appropriate using suitable transparent adhesives or adhesives, and can be used with advantage.
- FIG. 5 after exposure to radiation (arrows b) through a mask M, the parts M1 and M2 remain as hardened parts, which form the covers, after the development of the negative resist layer BM (FIG. 5b).
- the washed spaces R1-R3 in FIG. 5c and R4-R5 can be coated with opaque material, e.g. Color pigments or the like can be filled out in a suitable manner, so that in this case the covers are realized by the spaces R1-R5. In these cases, however, the resist material must be transparent.
- FIG. 7 A further production method for an anti-copying film 19 is shown in FIG. 7, the upper layer being a negative resist layer BN and the lower layer being a positive resist layer BP.
- the layer BN After exposure of the layer BN and development, after which the hardened parts N1 and N2 remain, exposure is again carried out from above (arrows b) through the finished upper layer, which serves as a mask for the lower layer BP in the exposure process , so that the parts P1-P3 remain after development.
- the negative resist material of the layer BN must be opaque or the same by exposure and washing out, or a mask M must be used, or the parts N1 and N2 must be colored opaque before the second exposure, by a Cover layer AS, as indicated in Fig. 7b.
- either the raised parts Nl, N2 and P1-P3 must be colored opaque, or the gaps, as described for FIGS. 5c, 6c, must be made opaque when the parts Nl, N2 and P1 -P3 are transparent.
- the photosensitive layers are applied to the film S in a conventional manner.
- it is known to apply very thin layers by means of adsorptive or adhesive techniques.
- the layers produced photographically or photopolymerically have a thickness in the range from approximately 0.1 ⁇ m to approximately 10 ⁇ m or only slightly above.
- electrostatic or adhesive forces can of course also be used to attach the films.
- FIG. 10 shows a further variant of the anti-copying films according to the invention, which is distinguished by a multilayer arrangement of individual films or layers.
- 3 individual films or layers S1-S3, each of which has covers A on one side only, can be transparently connected to one another.
- 2 individual films or layers S1 and S2 can also be transparently connected to one another and to a carrier film F.
- the films S1 and S2 would be different in that film S1 or S2 would be provided with covers A on both sides and the other film S2 would only be formed with covers A (bottom) and S1 only with covers A (top) ought to.
- Multi-layer arrangements are also conceivable.
- the physical transparency is defined as the ratio of the quantity of light J transmitted to the quantity of light J 0 that is incident
- the opacity (the opacity) is the reciprocal of it
- Oph J
- transparent such as films, layers, adhesive or adhesive layers
- P ⁇ 1 the opacity 0 Ph of the materials referred to as “opaque” or light “opaque”
- covers should be as large as possible.
- a large light scatter or light reflection of the material which is intended to act as a cover can also be as advantageous in the sense of the present invention as a material with high opacity if the ratio of the amount of light J 0 which is incident is very much larger is as the let through J 0 >> J.
- an anti-copying film or layer for originals or documents consists of transparent film material with a large number of spaced-apart, at least partially opaque and possibly reflecting areas which act as covers on the film surfaces in the are arranged essentially in horizontal planes, in particular offset parallel to one another, so that information of an underlying original is hidden in an approximately vertical viewing direction and the information is visible in the direction of a predetermined viewing angle.
- Appropriate production methods enable the use of photo techniques.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Theoretical Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Laminated Bodies (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Coating Of Shaped Articles Made Of Macromolecular Substances (AREA)
- Cleaning In Electrography (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Credit Cards Or The Like (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4226906 | 1992-08-14 | ||
DE4226906A DE4226906A1 (de) | 1992-08-14 | 1992-08-14 | Anti-Kopier-Film oder -Schicht für Dokumente |
PCT/EP1993/001891 WO1994004367A1 (de) | 1992-08-14 | 1993-07-17 | Anti-kopier-film oder -schicht für dokumente |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0655032A1 true EP0655032A1 (de) | 1995-05-31 |
EP0655032B1 EP0655032B1 (de) | 1996-10-09 |
Family
ID=6465534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93915945A Expired - Lifetime EP0655032B1 (de) | 1992-08-14 | 1993-07-17 | Anti-kopier-film oder -schicht für dokumente |
Country Status (14)
Country | Link |
---|---|
US (1) | US5728449A (de) |
EP (1) | EP0655032B1 (de) |
JP (1) | JP3309318B2 (de) |
KR (1) | KR100268156B1 (de) |
CN (1) | CN1060118C (de) |
AT (1) | ATE143870T1 (de) |
BR (1) | BR9306906A (de) |
DE (2) | DE4226906A1 (de) |
DK (1) | DK0655032T3 (de) |
ES (1) | ES2094554T3 (de) |
GR (1) | GR3022252T3 (de) |
RU (1) | RU2102244C1 (de) |
WO (1) | WO1994004367A1 (de) |
ZA (1) | ZA935912B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3838611A1 (de) | 2019-12-18 | 2021-06-23 | Polska Wytwórnia Papierów Wartosciowych Spólka Akcyjna | Sicherheitselement für einen datenträger, datenträger und verfahren zur herstellung des sicherheitselements und verwendung des sicherheitselements zur herstellung eines datenträgers |
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DE4320219A1 (de) * | 1993-06-18 | 1994-12-22 | Basf Magnetics Gmbh | Antikopierfilm |
DE4321685A1 (de) * | 1993-06-30 | 1995-03-23 | Basf Magnetics Gmbh | Antikopierfilm |
DE4324087A1 (de) * | 1993-07-17 | 1995-01-19 | Basf Magnetics Gmbh | Verfahren zur Herstellung eines Antikopierfilms |
AU2573195A (en) * | 1995-05-30 | 1996-12-18 | Tamas Detar | Films, printing forms and producing process thereof |
DE29714381U1 (de) * | 1997-05-21 | 1997-11-06 | EMTEC Magnetics GmbH, 67059 Ludwigshafen | Anti-Kopierfilm für Dokumente gegen Kopieren derselben in einer Kopiereinrichtung mit definiertem Öffnungswinkel |
DE19721170A1 (de) | 1997-05-21 | 1998-11-26 | Emtec Magnetics Gmbh | Verfahren und Vorrichtung zum Herstellen eines Films oder einer Schicht mit beidseitiger Oberflächenstruktur |
WO1999008161A1 (de) * | 1997-08-12 | 1999-02-18 | Emtec Matgnetics Gmbh | Anti-kopierfilm für dokumente gegen kopieren derselben in einer kopiereinrichtung mit definiertem öffnungswinkel |
DE19749789A1 (de) * | 1997-11-11 | 1999-05-12 | Bundesdruckerei Gmbh | Sicherheitsmerkmal für ein Wert- oder Sicherheitsdokument mit fraktalem Lamellensystem |
DE19904282C2 (de) * | 1999-02-03 | 2002-05-29 | Xetos Ag | Informationsträger |
US6189934B1 (en) | 1999-05-10 | 2001-02-20 | Larry W. Scruggs | Anti-copy layer utilizing spectral fragments |
ES2174673B1 (es) * | 1999-07-12 | 2003-08-01 | Vijay Atawane | Sistema de seguridad para evitar el fotocopiado de documentos. |
DE10044465A1 (de) * | 2000-09-08 | 2002-03-21 | Giesecke & Devrient Gmbh | Datenträger mit einem optisch variablen Element |
US7804649B2 (en) * | 2003-09-09 | 2010-09-28 | 3M Innovative Properties Company | Microreplicated achromatic lens |
US20050231809A1 (en) * | 2003-09-09 | 2005-10-20 | Carlson Daniel H | Microreplicated polarizing article |
US7224529B2 (en) * | 2003-09-09 | 2007-05-29 | 3M Innovative Properties Company | Microreplicated article |
US7165959B2 (en) * | 2003-09-09 | 2007-01-23 | 3M Innovative Properties Company | Apparatus and method for producing two-sided patterned webs in registration |
AT501989B1 (de) | 2004-03-26 | 2010-04-15 | Hueck Folien Gmbh | Sicherheitsmerkmal mit unter einem bestimmten betrachtungswinkel optisch erkennbaren merkmalen |
US7931841B2 (en) * | 2005-03-09 | 2011-04-26 | 3M Innovative Properties Company | Microreplicated article |
EP2058108B1 (de) | 2005-03-09 | 2012-06-06 | 3M Innovative Properties Company | Gemusterte Rolle zum Giessen einer gemusterten Oberfläche auf ein opaques Flächengebilde |
JP5175172B2 (ja) * | 2005-03-09 | 2013-04-03 | スリーエム イノベイティブ プロパティズ カンパニー | 欠陥低減表面を有する微細複製物品 |
MX2007010816A (es) * | 2005-03-09 | 2007-11-07 | 3M Innovative Properties Co | Aparato y metodo para fabricar un articulo microrreplicado. |
BRPI0608696A2 (pt) * | 2005-03-09 | 2010-12-07 | 3M Innovative Properties Co | aparelho de microrreplicação de rolo para rolo e método de produzir um artigo microreplicado |
US20060209428A1 (en) * | 2005-03-09 | 2006-09-21 | Dobbs James N | Microreplicated article with moire reducing surface |
US20070026204A1 (en) * | 2005-07-28 | 2007-02-01 | Michael Patrick Caulley | Embedded watermark |
US7467873B2 (en) * | 2005-10-14 | 2008-12-23 | 3M Innovative Properties Company | Privacy film |
US7326504B2 (en) * | 2005-10-14 | 2008-02-05 | 3M Innovative Properties Company | Imaged anti-copy film |
EP1886827B1 (de) | 2006-08-11 | 2009-12-23 | National Bank of Belgium | Verstecktes Bild |
DE102006050047A1 (de) * | 2006-10-24 | 2008-04-30 | Giesecke & Devrient Gmbh | Durchsichtssicherheitselement mit Mikrostrukturen |
CN101290501B (zh) * | 2007-04-20 | 2011-07-20 | 中国科学院大连化学物理研究所 | 一种基于有机膜结构的防复印膜及其制备 |
DE102008012422A1 (de) * | 2007-10-31 | 2009-05-07 | Bundesdruckerei Gmbh | Verfahren zum Herstellen eines Sicherheitsdokuments und Sicherheitsdokument mit blickrichtungsabhängigem Sicherheitsmerkmal |
DE102008012423A1 (de) * | 2007-10-31 | 2009-05-07 | Bundesdruckerei Gmbh | Verfahren zur Herstellung eines Polymerschichtverbundes und Polymerschichtverbund mit farbigem Sicherheitsmerkmal |
ES2359536T3 (es) * | 2008-01-31 | 2011-05-24 | National Bank Of Belgium | Cambio de color. |
WO2009103021A1 (en) * | 2008-02-14 | 2009-08-20 | Documotion Research, Inc. | Tamper evident materials for securely carrying information |
DE102009033762A1 (de) * | 2009-07-17 | 2011-01-27 | Leonhard Kurz Stiftung & Co. Kg | Verfahren zur Herstellung eines Mehrschichtkörpers sowie Mehrschichtkörper |
DE102009053925A1 (de) * | 2009-11-19 | 2011-05-26 | Giesecke & Devrient Gmbh | Sicherheitselement mit Mikrostruktur |
GB2480227A (en) * | 2010-03-01 | 2011-11-16 | Rue De Int Ltd | Optical security device with spaced microlines |
DE102010022123C5 (de) | 2010-05-20 | 2023-03-02 | Leonhard Kurz Stiftung & Co. Kg | Sicherheitselement |
DE102011006191A1 (de) * | 2011-03-28 | 2012-10-04 | Bundesdruckerei Gmbh | Aus mindestens drei Laminatlagen gebildeter Laminatkörper, Verfahren zu dessen Herstellung und dessen Verwendung |
CN102765251A (zh) * | 2011-05-03 | 2012-11-07 | 郑进 | 一种产生防复印承载介质的打印、复印设备 |
GB201117523D0 (en) * | 2011-10-11 | 2011-11-23 | Rue De Int Ltd | Security devices and methods of manufacture thereof |
CN102658741B (zh) * | 2012-03-21 | 2017-02-15 | 刘峰 | 一种基于视觉密码的可视防复印技术 |
CN103526646A (zh) * | 2013-09-26 | 2014-01-22 | 昆山市长宏印刷厂 | 一种防复印电脑打印纸 |
GB2568077A (en) * | 2017-11-03 | 2019-05-08 | De La Rue Int Ltd | Security document and method of manufacture thereof |
US10976483B2 (en) * | 2019-02-26 | 2021-04-13 | Facebook Technologies, Llc | Variable-etch-depth gratings |
CN115199989B (zh) * | 2021-04-09 | 2024-07-30 | 北京小米移动软件有限公司 | 光学膜片及其制备方法、导光结构、电子设备 |
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US4025673A (en) * | 1972-04-13 | 1977-05-24 | Reinnagel Richard E | Method of forming copy resistant documents by forming an orderly array of fibers extending upward from a surface, coating the fibers and printing the coated fibers and the copy resistant document resulting from said method |
US3887742A (en) * | 1972-04-13 | 1975-06-03 | Richard E Reinnagel | Copy resistant documents |
US4184700A (en) * | 1975-11-17 | 1980-01-22 | Lgz Landis & Gyr Zug Ag | Documents embossed with optical markings representing genuineness information |
US4066280A (en) * | 1976-06-08 | 1978-01-03 | American Bank Note Company | Documents of value printed to prevent counterfeiting |
NL8601250A (nl) * | 1986-05-16 | 1987-12-16 | Avery International Corp | Folie met beperkte doorlaatbaarheid voor straling. |
GB8912750D0 (en) * | 1989-06-02 | 1989-07-19 | Portals Ltd | Security paper |
-
1992
- 1992-08-14 DE DE4226906A patent/DE4226906A1/de not_active Withdrawn
-
1993
- 1993-07-17 WO PCT/EP1993/001891 patent/WO1994004367A1/de active IP Right Grant
- 1993-07-17 KR KR1019950700554A patent/KR100268156B1/ko not_active IP Right Cessation
- 1993-07-17 ES ES93915945T patent/ES2094554T3/es not_active Expired - Lifetime
- 1993-07-17 JP JP50582594A patent/JP3309318B2/ja not_active Expired - Fee Related
- 1993-07-17 AT AT93915945T patent/ATE143870T1/de not_active IP Right Cessation
- 1993-07-17 DE DE59304143T patent/DE59304143D1/de not_active Expired - Fee Related
- 1993-07-17 EP EP93915945A patent/EP0655032B1/de not_active Expired - Lifetime
- 1993-07-17 RU RU95109101/12A patent/RU2102244C1/ru not_active IP Right Cessation
- 1993-07-17 DK DK93915945T patent/DK0655032T3/da active
- 1993-07-17 BR BR9306906A patent/BR9306906A/pt not_active IP Right Cessation
- 1993-07-18 US US08/381,917 patent/US5728449A/en not_active Expired - Fee Related
- 1993-08-13 ZA ZA935912A patent/ZA935912B/xx unknown
- 1993-08-14 CN CN93109674A patent/CN1060118C/zh not_active Expired - Fee Related
-
1997
- 1997-01-09 GR GR970400019T patent/GR3022252T3/el unknown
Non-Patent Citations (1)
Title |
---|
See references of WO9404367A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3838611A1 (de) | 2019-12-18 | 2021-06-23 | Polska Wytwórnia Papierów Wartosciowych Spólka Akcyjna | Sicherheitselement für einen datenträger, datenträger und verfahren zur herstellung des sicherheitselements und verwendung des sicherheitselements zur herstellung eines datenträgers |
Also Published As
Publication number | Publication date |
---|---|
CN1060118C (zh) | 2001-01-03 |
RU2102244C1 (ru) | 1998-01-20 |
JPH08503788A (ja) | 1996-04-23 |
ZA935912B (en) | 1995-02-13 |
CN1086479A (zh) | 1994-05-11 |
BR9306906A (pt) | 1998-12-08 |
US5728449A (en) | 1998-03-17 |
KR100268156B1 (ko) | 2000-10-16 |
DE59304143D1 (de) | 1996-11-14 |
RU95109101A (ru) | 1996-12-10 |
ATE143870T1 (de) | 1996-10-15 |
DK0655032T3 (da) | 1996-11-18 |
ES2094554T3 (es) | 1997-01-16 |
WO1994004367A1 (de) | 1994-03-03 |
JP3309318B2 (ja) | 2002-07-29 |
DE4226906A1 (de) | 1994-02-17 |
EP0655032B1 (de) | 1996-10-09 |
GR3022252T3 (en) | 1997-04-30 |
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