JP2001270275A - Image-forming body and its manufacture method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an image forming body, and its manufacturing method, which is equipped with a preventive performance against forgery, tampering or falsification for the image forming body requiring a high security property represented by a passpaort and a visa and a discovery easiness performance wherein a fraudulent article to be doubted can be easily discovered by seeing in the case those injustices are done by any chance. SOLUTION: For image forming bodies 12 and 22 wherein visually confirmed information containing at least an image and mechanically confirmed information containing at least either of a character or a symbol are formed, an image of the visually confirmed information, and either or at least a part of the character or the simbol of the mechanically confirmed information are formed by an ink having an ink jet aptitude. The image forming bodies 12 and 22 are provided wherein OVD layers 133 and 233 are provided in a part or the whole on that in which the visually confirmed information and the mechanically confirmed information are formed. The OVD layers 133 and 233 are preferably provided by using transfer foils 13 and 23.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to forgery and tampering of data pages of passports (representative examples of booklets) and visa pages (representative examples of stickers, which are pasted on predetermined pages in passports (booklet)). Also, to prevent alteration or to make it easy to detect fraud even in the event that such fraud is committed.
The present invention relates to an image forming body such as a passport (booklet) or a visa sticker (passport sticker) useful for making it difficult to falsify machine confirmation information such as a CR and a method of manufacturing the same.

[0002]

2. Description of the Related Art A passport facilitates the customs clearance of international passengers at airports, as well as for proof of identity when crossing national borders or where foreign laws apply. Used to obtain the necessary political protection. According to the so-called ICAO regulations, currently used passports must be readable both visually and by optical character identification. (ICAO is Interna
National Civil Aviation Organization) The materials used for passports and security are at the discretion of each country, and commonly used as a security function are chemical reactants that react with organic solvents, iris-colored pearl chips, Papers containing fibers (silk or synthetic fibers, visible or invisible, fluorescent or non-fluorescent), security threads of holograms or micro-character printed films, watermarks, fading inks, fluorescent inks, thermal inks, optical Various inks such as inks (OVI and the like) that change to various colors, and various techniques such as fine line printing, rainbow printing, intaglio printing, and pixel printing are incorporated to simultaneously improve security and aesthetics.

[0003] In addition, a face photograph as visual confirmation information of a passport has conventionally been obtained by laminating photographs, but in recent years there has been a tendency to digitize photographic information and reproduce it in a passport. As a method of reproducing an image on a passport, a thermal transfer recording method using a transfer ribbon using a resin type melting type or a wax melting type in which a sublimable (heat transferable) dye or a pigment is dispersed, or an electrophotographic method is considered. Have been.

[0004] Further, as an image display body containing this kind of personal recognition data, an image display formed on the basis of a card such as polyvinyl chloride or the like, or an image pattern formed based on the image data is used. In addition, an OVD image (OVD stands for Optical Variable Dv) represented by an image obtained by using a hologram, a diffraction grating, or an optical thin film (an effect such as color shift can be obtained by optical design).
and the like are known.

[0005] The OVD technology of these holograms and diffraction gratings requires advanced manufacturing technology and is difficult to duplicate, so that credit cards, ID cards,
It has been used for cards such as prepaid cards. Furthermore, due to its high decorativeness, it is often used for packaging materials, books, pamphlets, POPs, and the like. As a means for attaching these OVDs to an article, a method of transfer-forming using a transfer foil has conventionally been adopted. This type of transfer is configured by sequentially laminating a release layer, a relief layer in which an image pattern of a hologram or a diffraction grating is formed on a support, a reflective layer formed by a known thin film forming means, and an adhesive layer. Are known. These OVD patterns (holograms and diffraction grating patterns) engraved on the transfer foil are copied in a large amount by a well-known method of duplicating a fine uneven pattern on a nickel press plate and pressing the relief layer with heat. I have.

The reflective layer is formed by forming a transparent substance having a different refractive index by a known thin film forming means such as a vacuum evaporation method (hereinafter, referred to as a transparent thin film layer). It is a known technique.
In this case, it is apparent from an optical point of view that the larger the difference in refractive index between the relief layer and the transparent thin film layer, the larger the reflectance. However, there is a relation of the refractive index of the relief layer <the refractive index of the transparent thin film layer.

The method of forming the OVD transfer foil will be briefly described. FIG. 3 is a sectional view showing a configuration example of the transparent OVD transfer foil. The OVD transfer foil has a layer that transmits and reflects light, that is, a transparent thin film layer 33b, and has an excellent eye-catching effect without impairing a design such as printing on a base material that is an object to be transferred. Can be. Hereinafter, FIG.
The configuration will be described based on the cross-sectional view of FIG. A release layer (peelable protective layer) 32 is formed on the support 31, and the release layer 32
A relief forming layer 33a provided with an OVD pattern such as a hologram or a diffraction grating and a transparent thin film layer 33b are formed thereon. An adhesive layer 34 is formed on the transparent thin film layer 33b.

The relief forming surface of the OVD layer 33 is
When present on the opposite side of the support 31 and transferred to the article surface, the release layer 32 peels off at the interface with the support 31 and moves to the article side to function as a protective layer. It is also called “peelable protective layer”. Further, the layers that move to the article side except for the support are collectively referred to as “transfer layers”.

Each drawing schematically represents the structure of the transfer foil and the like, and the dimensions such as the thickness of each layer do not conform to actual products.

For these holograms or diffraction grating structures, a relief type master plate composed of a fine uneven pattern is generally prepared by an optical imaging method or electron beam drawing, and then the uneven pattern is duplicated by an electroplating method. A large number of copies are made by a well-known method of duplicating the obtained nickel press plate and heating and pressing the press plate on the relief forming layer 33.

The hologram or diffraction grating structure obtained in this way can be used as a forgery prevention means for a credit card, cash card, membership card, employee card,
Various cards such as prepaid cards, driver's licenses, various paper tickets such as gift certificates, gift certificates, stock certificates, various forms such as application forms, receipts, copy slips, and various types of passports, passbooks, pension notebooks, etc. In addition to booklets, they are used by being attached to a part or the whole of a cover such as a book or a notebook, or a display such as a panel. Incidentally, the whole described in the present invention is a conceptual meaning, regardless of pattern, pattern, etc., spot-shaped, stripe-shaped, those stuck on a grid, fixed form,
Also included are those attached with irregular halftone dots.

Although such an OVD transfer foil has a sufficient function as an anti-counterfeiting effect, it is formed by thermally transferring an OVD transfer layer onto an image such as a face photograph after forming an image such as a passport. For this reason, at present, when forgery technology has been developed, there is a concern that the transfer layer may be once removed by some method, the image data or the like may be altered, and then the OVD transfer foil may be mounted again. ing.

Further, printers such as a sublimation transfer system, a hot-melt transfer ribbon system, and an electrophotographic system as means for forming image information such as a face photograph are widely spread, and the image forming section is removed. Later, it is not always difficult to form a new image these days.

[0014]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has been developed in order to counterfeit or counterfeit an image forming body requiring high security such as a passport or a visa. Provided is an image forming body and a method of manufacturing the same, which have prevention performance against tampering or alteration, and easy-to-find performance such that even if the fraud is performed, the suspected fraudulent product can be easily found by looking at it. The purpose is to:

[0015]

According to a first aspect of the present invention, at least a visual confirmation information including an image and at least one of a character and a symbol are provided at a predetermined position on at least one surface of the base material. Wherein the image of the visual confirmation information and at least a part of any of the characters or symbols of the machine confirmation information are formed of ink having ink jet suitability. An image forming body characterized in that an OVD layer is provided on a part or all of the upper part on which the visual confirmation information and the machine confirmation information are formed. A typical example of the visual confirmation information such as a photograph is a face photograph and the like, and a typical example of the machine confirmation information is an OCR. Representative examples of the image forming body include a booklet such as a passport or a passport sticker used for a visa.

The image forming body according to the present invention further comprises one or more intermediate layers between the visual confirmation information and the machine confirmation information and the OVD layer, or one or more transparent layers on the OVD layer. One or both of the layers may be provided. Examples of the intermediate layer include an adhesive layer for bonding the OVD layer to the surface of the base material, the visual confirmation information and the machine confirmation information, and a layer other than the OVD layer to obtain some security effect or decorativeness. Functional layers. Examples of the transparent layer include an OVD layer, a protective layer that protects against mechanical damage and chemical damage in order to improve the durability of visual confirmation information and machine confirmation information, and a method that provides some security effect or decorativeness. And a functional layer prepared in addition to the OVD layer.

According to a second aspect of the present invention, at a predetermined position on at least one surface of the substrate, visual confirmation information including at least an image and machine confirmation information including at least one of a character and a symbol are provided. At least in part, either a booklet or a sticker formed by using an inkjet is used as a transfer object, and at least an OVD layer and an adhesive layer are laminated in this order on a film-like support.
The visual confirmation information and the machine can be obtained by superposing the adhesive layer side of the VD transfer foil on the transfer body side and applying heat and pressure from at least one side of the OVD transfer foil or the transfer body. An image forming body manufacturing method, characterized in that an OVD layer is provided on a part or all of the upper part on which confirmation information is formed.

In the method of manufacturing an image forming body according to the present invention, the layer structure of the OVD transfer foil (the structure of the layer transferred together with the OVD layer and the layer remaining on the support side) is appropriately designed. As an embodiment of the related image forming body,
It is possible to efficiently manufacture a substrate having the above-mentioned intermediate layer and transparent layer.

[0019]

According to the present invention, visual confirmation information and machine confirmation information are formed on a passport booklet or a passport sticker base material by an ink jet method, so that a color material or the like for forming information is used. By penetrating the inside of the material and further providing an OVD transfer layer thereon, it is extremely difficult to perform illegal acts such as falsification of information.

That is, if the information formed on the passport booklet or the passport sticker is to be illegally changed, it is necessary to remove the OVD transfer layer provided on the information stamp screen. It is a laminate of thin layers and it is practically difficult to remove it from the information stamp screen while maintaining its shape and function.
When the transfer layer is destroyed and a new OVD layer is to be forged, as described above, the technology for producing a hologram or a diffraction grating formed product itself is extremely sophisticated, and forgery is not easy.

In the unlikely event that an unknown technique is used, OVD
Even if it can be removed from the information stamp screen while maintaining the shape and function of the transfer layer, the information is formed by forming visual confirmation information such as a face photograph and mechanical confirmation information such as OCR by an ink jet method. Since coloring materials and the like penetrate into the base material, it is difficult to completely remove the printed information contents, so that forgery, falsification or alteration of a passport booklet or passport sticker, etc. is extremely difficult, and However, even if a fraudulent act is performed, the suspected fraudulent product can be easily found by looking at it.

[0022]

Embodiment 1 Embodiment 1 of the present invention will be described below with reference to the drawings. 1 and 2 are cross-sectional views showing the basic configurations of a passport booklet 1 and a passport sticker 2 according to the present embodiment, respectively. The base materials 11 and 21 made of a material such as paper may be subjected to at least one surface thereof to be subjected to a conventionally known intaglio printing, fluorescent printing, OVI printing, security printing such as pearl chip printing, picture printing, or the like. It is possible to provide a combination of security technologies.

When an image is formed by an ink-jet method, an image receiving layer may be provided on a part or the whole of an arbitrary layer in order to increase the coloring property and fixing property of the coloring material. Examples of such an image receiving layer include unmodified and modified polycarbonate alcohol, polyester, acryl, urethane, vinyl acetate resin, albumin, gelatin, casein, starch, rubbers such as SBR and NBR, and latexes thereof, and cellulose resins. One, two or more of polyamide, melamine, acrylamide, polyvinylpyrrolidone, cation-modified products thereof, or those having a hydrophilic group added thereto can be used, but are not limited thereto. Further, silica, clay, talc, diatomaceous earth, zeolite, calcium carbonate, alumina, titanium white and the like may be added. 20.0μ in thickness
m or less.

The image forming units 12 and 22 are formed on the base material by an ink jet method. Here, the ink used may be any of inks such as water-based, solvent-based, ultraviolet or electron beam-curable, and hot-melt inks, and any of these methods may be used. And pigments. In selecting these inks, there are cases where they are determined in advance by compatibility with the security technology provided on the base material side, but here, an aqueous ink using a dye-based coloring material was used as the ink. .

The structure of the OVD transfer foil portions 13 and 23 is as follows.
232 is formed, the OVD layers 133 and 233 are formed on the peelable protective layers 132 and 232, and the OVD layers 133 and 233 are formed.
Adhesive layers 134 and 234 are formed on 233.

Here, the supports 131 and 231 are required to have heat resistance and strength so as not to be softened and deformed by the heat pressure in thermal transfer. The materials include synthetic resins such as polyvinyl chloride, polyester, polycarbonate, polymethyl methacrylate, polystyrene, polyethylene, polyethylene terephthalate, polyethylene naphthalate, polypropylene, polyvinyl alcohol, polyvinylidene chloride, and polyimide, natural resins, paper, and synthetic resins. A material selected alone from paper or the like, or a complex selected from the above and combined can be used, but is not limited thereto. In addition, the thickness, considering the operability and workability,
Although those having a thickness of 2 to 100 μm can be used, considering handling properties such as transfer suitability and workability, 6 to 50 μm
Are preferred.

In this experiment, a polyethylene terephthalate film having a thickness of 16 μm was used, and a peelable protective layer composition having the following compounding ratio was applied and dried so as to have a thickness of 1.5 μm. Here, "parts" may be expressed on a weight basis or on a mass basis to indicate the mixing ratio.
The same applies to the following. Acrylic resin ... 30 parts Polyester resin ... 5 parts Polyethylene powder ... 5 parts Toluene ... 40 parts Methyl ethyl ketone ... 40 parts Methyl isobutyl ketone ... 20 parts The peelable protective layers 132 and 232 are OVD layers 133 and
233 and the adhesive layers 134 and 234 are provided to more effectively transfer them to the transfer-receiving body side. Furthermore, when it becomes a final product, it functions as a protective layer.

The releasable protective layers 132 and 232 may be any of a thermoplastic resin, a thermosetting resin, an ultraviolet ray or an electron beam curable resin as long as the material can be easily separated from the base material. Thermoplastic resins are preferred in consideration of the properties and foil breakability. Examples include thermoplastic polyacrylate resins, chlorinated rubber resins, vinyl chloride-vinyl acetate copolymer resins, cellulose resins, chlorinated polypropylene resins, epoxy resins, polyester resins, nitrocellulose resins, Acrylate resin,
Resins such as polyether-based resins and polycarbonate-based resins can be used alone or in combination.

In consideration of the foil breaking property and the abrasion resistance, various waxes such as petroleum wax and vegetable wax, higher fatty acids such as stearic acid and metal salts and esters thereof, lubricants such as silicon oryl, and Teflon Organic fillers such as powder, polyethylene powder, silicone-based fine particles and acrylonitrile-based fine particles, and inorganic fillers such as silica fine particles can also be added. Note that the peelable protective layers 132 and 232 need not be provided when the supports 131 and 231 themselves have peelability or when the supports themselves have been subjected to a release treatment. However, in this case, after the transfer, the layer corresponding to the outermost surface (in this embodiment, OVD
Layers 133 and 233) may be provided with abrasion resistance, or a protective layer may be provided after transfer. The thickness of the peelable protective layer can be formed in the range of 0.1 to 20.0 μm, and is not particularly limited when the protective layer is provided later.

Next, in this embodiment, the OVD layers 133, 23
As an example of 3, a relief type transparent hologram was used.
The manufacturing method will be described below. Peelable protective layer 1
The relief forming layer provided on 32, 232 has a hologram relief forming surface on the surface opposite to the peelable protective layers 132, 232, and a transparent thin film layer is formed on the relief forming surface. The relief forming surface can be formed by heating and pressing a nickel press plate on which a fine uneven pattern constituting the relief hologram is formed on the relief forming layer. The relief forming layer may have a hologram pattern on the layer surface (the above-described relief forming surface) or in the layer. In addition, for example, fine irregularities may be formed by two-beam interference or a diffraction grating (grating) by an electron beam (EB). A grating hologram or a Lippmann hologram having a shape can be applied.

The transparent thin film layer is a transparent material having a higher refractive index than the relief forming layer (refractive index n = 1.3 to 1.7). For example, inorganic materials shown in Table 1 below can be used. It has become. Further, the transparent thin film layer may be formed by laminating a plurality of layers, or may be a combination of layers having different refractive indexes, or a multilayer film in which layers having a low refractive index and layers having a low refractive index are alternately laminated.

[0032]

[Table 1]

As a method for forming such a transparent thin film layer, a film forming means such as a sputtering method or an ion plating method can be applied in addition to the vacuum evaporation method.
The thickness is preferably in the range of 10 nm to 1000 nm. As the transparent thin film layer, a high refractive index fine powder such as TiO ₂ may be dispersed in a resin or the like, and the refractive index difference from the relief forming layer may be 0.2 or more. In this case, since the coating film can be formed by a general coating method, the thickness is not limited to the above-mentioned film thickness.

Here, the relief forming layer is a resin having good embossing formability, hardly causing press unevenness, obtaining a bright reproduced image, and having good adhesion to the peelable protective layers 132 and 232 and the transparent thin film layer. Here, a composition having the following compounding ratio was used, and formed so that the thickness after drying was 1.0 μm. Polyurethane resin: 30 parts Methyl ethyl ketone: 70 parts Toluene: 30 parts Further, the relief forming surface was formed with such a composition at a plate surface temperature of the above-described press plate of 160 ° C.

The relief forming layer may be made of other thermoplastic resins such as polycarbonate resin, polystyrene resin, polyvinyl chloride resin, unsaturated polyester resin, melamine resin, epoxy resin, urethane (meth) acrylate, polyol (meth) Thermosetting resins such as acrylates, melamine (meth) acrylates, and triazine (meth) acrylates or mixtures thereof, as well as thermoformable materials having radically polymerizable unsaturated groups can be used. Any material can be used as long as it has a stability capable of forming an OVD image. The transparent thin film layer is a transparent material for transmitting information of the relief forming layer, and here, ZnS having a thickness of 50 nm is used.
Was provided by a vacuum evaporation method.

Next, an adhesive layer composition having the following compounding ratio was applied on the transparent thin film layer to a thickness of 4.0 μm and dried. The main drying condition is drying at 100 ° C. for 5 minutes. Vinyl chloride-vinyl acetate copolymer ... 30 parts Polyurethane resin ... 30 parts Methyl ethyl ketone ... 50 parts Toluene ... 50 parts

The adhesive layers 134 and 234 are made of, for example, polyester resin, polyvinyl chloride or vinyl chloride.
Vinyl chloride resin such as vinyl acetate copolymer, polyurethane resin, epoxy resin, chlorinated polypropylene, acrylic resin, polystyrene, polydivinylbenzene, polyvinylbenzene, styrene-butadiene copolymer resin, styrene and alkyl methacrylate (however, The alkyl group has a carbon number of 2 to 6) such as vinyl resins and various rubber materials. These can be used alone or as a mixture of two or more, but are not limited thereto.

Further, in order to prevent discoloration and fading of a color material constituting an image due to light, an ultraviolet absorbent having a maximum absorption wavelength of 250 nm to 400 nm may be added to the adhesive layers 134 and 234. Examples of such ultraviolet absorbers include salicylic acid-based ultraviolet absorbers such as phenyl salicylate, pt-butylphenyl salicylate, p-octylphenyl salicylate, 2,4-dihydroxybenzophenone, 2-hydroxybenzophenone, and 2-hydroxybenzoic acid. −
4-octoxybenzophenone, 2-hydroxy-4-
Benzophenone ultraviolet absorbers such as dodecyloxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2-hydroxy-4-methoxy-5-sulfobenzophenone , 2- (2'-hydroxy-5'-methylphenyl) benzotriazole, 2-
(2′-hydroxy-5′-t-butylphenyl) benzotriazole, 2- (2′-hydroxy-3′-t-)
Butyl-5'-methylphenyl) benzotriazole,
Benzotriazole ultraviolet absorbers such as 2- (2′-hydroxy-3 ′, 5′-di-t-amylphenyl) benzotriazole, 2-ethylhexyl-2-cyano-3,
3'-diphenyl acrylate, ethyl-2-cyano-
And cyanoacrylate-based ultraviolet absorbers such as 3,3-diphenylacrylate. Also, TiO ₂ and Z
An inorganic ultraviolet shielding agent of a fine powder such as an nO type may be used.
The compounding ratio of the ultraviolet absorber may be in the range of 5 to 40 parts with respect to 100 parts of the composition composed of the resin or the like constituting the adhesive layer.

Further, in consideration of the foil breaking property during thermal transfer,
Adding various waxes, higher fatty acids such as stearic acid and their metal salts and esters, plasticizers, organic fillers such as Teflon powder, polyethylene powder, silicone fine particles and acrylonitrile fine particles, and inorganic fillers such as silica fine particles. Can also.

OVD transfer foil 1 thus obtained
3, 23 and the passport booklet or passport sticker for which image formation has been completed by the ink jet method are superimposed on each other, and the heat roll is pressed and heated (heating temperature; 125 ° C.) from the OVD transfer foils 13, 23 side. , The support 131 of the OVD transfer foils 13 and 23,
231 was peeled off to produce a passport booklet and a passport sticker as anti-counterfeit image forming bodies.

[0041]

As described above, in a passport booklet or passport sticker, visual confirmation information such as a face photograph and machine confirmation information such as an OCR are printed by an ink jet method, and the OVD transfer foil is further printed thereon. OVD for holograms and diffraction gratings
By transferring the transfer layer with heat and pressure, extremely forgery, tampering,
We can supply passport booklets or passport stickers that are difficult to alter.

[Brief description of the drawings]

FIG. 1 is a schematic cross-sectional view for explaining a passport booklet and a passport sticker.

FIG. 2 OVD (hologram or diffraction grating formed product)
FIG. 3 is a schematic cross-sectional view for explaining a transfer foil.

FIG. 3 shows an OVD transfer foil (particularly a transparent OV) according to the present invention.
FIG. 4 is a schematic cross-sectional view for explaining one configuration example of a (D transfer foil).

[Explanation of symbols]

 11 ... passport booklet base material 12, 22 ... inkjet image forming part 13, 23 ... OVD transfer foil 131, 231 ... support for OVD transfer foil 132, 232 ... peelable protective layer 133, 233 ... OVD layer 134, 234 ... adhesion Layer 20: Adhesive layer 21: Sticker substrate for passport 31: Support for OVD transfer foil 32: Removable protective layer 33: OVD layer 33a: Relief forming layer 33b: Transparent thin film layer 34: Adhesive layer

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C005 HA01 HB02 JB02 JB08 JB09 KA06 KA37 LA11 LA20 LA27 LA30 3B005 EA11 EA12 EB05 EB09 EC30 FA04 FA07 FB09 FB18 FC01X FC01Y FC04X FC04Y FC08X FC08Z FE01 FE03 FG01 FG01 GB01 GB05

Claims (2)

[Claims] 1. An image forming body in which visual confirmation information including at least an image and machine confirmation information including at least one of a character and a symbol are formed at a predetermined position on at least one surface of a base material. An image of the visual confirmation information, and at least a part of any of characters or symbols of the machine confirmation information is formed of ink having inkjet suitability, and the visual confirmation information and the machine confirmation information An image forming body characterized in that an OVD layer is provided on a part or all of the upper part on which information is formed. 2. A method according to claim 1, wherein at least a predetermined position on at least one surface of the base material includes visual confirmation information including at least an image, machine confirmation information including at least one of a character and a symbol, and at least a part of the inkjet confirmation information. A booklet or a sticker formed by using the above is used as an object to be transferred, and at least an OVD layer and an adhesive layer are laminated on a film-like support in this order. The visual confirmation information and the machine confirmation information are formed by applying heat and pressure from at least one side of the OVD transfer foil or the transfer body, with the side facing the transfer body side. A method for producing an image forming body, characterized in that an OVD layer is provided on a part or all of the above.