JP2003326824A - Card with photodiffraction layer and method for manufacture thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a card with a photodiffraction layer which is mass-produced at existing facilities at a low cost and shows outstanding design characteristics and high security properties, and also to provide a method for manufacturing this card. <P>SOLUTION: This method comprises steps of: (a) manufacturing a transfer foil obtained by laminating a transfer base material, a release layer, a photodiffraction layer, a transparent reflective layer, a high brightness ink reflective layer partially formed by a printing process and if necessary, and an adhesive layer in that order; (b) laminate-transferring the transfer foil to a card base material of an oval or long web shape; (c) forming a UV anchor layer of a semi-cured state to the surface of the release layer having the transfer base material released and exposed through a primer layer; (d) forming a printing layer on the UV anchor layer of a semi-cured state by an offset printing process, and simultaneously curing both UV anchor layer and offset printing layer; and (e) blanking the processed web to the size of a card. Also, the card has a photodiffraction layer. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card, and more specifically, a transfer foil having a light diffraction layer, a transparent reflection layer, and a high-brightness ink reflection layer is formed by transferring the entire surface onto a card substrate, The present invention relates to a card having an optical diffraction layer in which an offset printing layer is provided on a diffraction layer, and a manufacturing method thereof.

[0002]

2. Description of the Related Art (Summary of Technology) There are three major obstacles in providing a light diffractive layer on a card, and by combining three techniques for solving these problems, a card having a light diffractive layer that can be used practically and its manufacture are provided. I found a way. Firstly, a reflective layer having a partial (pictorial) metallic luster for enhancing the design of the light diffraction layer is provided by a printing method. Secondly, the transfer work to the card base material is performed one by one, and the whole surface is transferred to a plurality of cards continuously. Thirdly, the offset printing provided on the light diffractive layer is firmly adhered by providing the UV anchor layer. By combining the above three techniques, it is possible to obtain a card with reduced cost, mass production, and high designability and security.

(Prior Art) Conventionally, it is known that a reflective layer having a metallic luster of a transfer foil having a light diffracting layer is usually formed with a thin metal film by a vacuum film forming method. However, the vacuum film forming method requires special vacuum equipment.
Also, in order to provide a partial reflection layer for the purpose of enhancing the design, once the entire reflection layer of the metal thin film is provided by the vacuum film formation method, the resist is printed and etched in a separate step, It has the drawbacks that it is not suitable for lot production and is costly. Further, in order to transfer the peeling layer / light diffraction layer / reflection layer / adhesive layer to the card substrate using the transfer foil,
A method of partially transferring by a hot stamping method is known. However, since the transfer operation is performed for each card, there is a problem that mass production cannot be performed at low cost. Furthermore, after transferring to the card substrate,
Since the release layer surface is exposed, there is a drawback that offset printing is difficult on the release layer surface.

[0004]

Therefore, the present invention has been made to solve such a problem. The purpose is that existing equipment can be inexpensively mass-produced, and by providing the reflective layer and the printed pattern in synchronization, the design is high,
And a card having a light diffractive layer with high security,
And a method for manufacturing the same.

[0005]

In order to solve the above-mentioned problems, a method for producing a card having a light-diffractive layer according to the invention of claim 1 is (a) a transfer substrate, a peeling layer, a light-diffractive layer, A transparent reflective layer, a high-brightness ink reflective layer, and an adhesive layer, if necessary, are sequentially laminated, and the high-brightness ink reflective layer is a metal vapor-deposited thin film surface-treated with at least an organic fatty acid, methylsilyl isocyanate, or a cellulose derivative. A step of producing a transfer foil containing a piece and partially provided by a printing method, (b) a card in a large format in which a plurality of cards are faced with the transfer foil, or a long web state card A step of transferring the entire surface to at least one surface of the base material and peeling off only the transfer base material, (c) a semi-cured UV on the release layer exposed by peeling off the transfer base material via the primer layer. Process to form anchor layer , (D) a semi-hardened state to UV anchor layer, to form a printed layer at offset printing method, the U
A step of simultaneously curing the V anchor layer and the offset printing layer, (e) a step of punching into a card size to obtain a card,
It is made up of. According to the present invention, there is provided a method of manufacturing a card having an optical diffraction layer which can be manufactured by existing equipment, can be manufactured in a small lot, and is low in cost. According to a second aspect of the present invention, there is provided a method for producing a card having an optical diffraction layer, wherein the transfer foil comprises a transfer substrate, a peeling layer, a light diffraction layer, a transparent reflection layer, and a high-brightness ink reflection layer, which are sequentially laminated. The transfer method is a laminate transfer method. According to the present invention, it can be manufactured with existing equipment, and the formation and transfer (laminating) of the adhesive layer can be performed in the same step,
Further, there is provided a method of manufacturing a card having an optical diffraction layer which can be manufactured in a small lot and is low in cost. A card having a light diffracting layer according to the invention of claim 3 comprises: (a) a transfer substrate, a peeling layer, a light diffracting layer, a transparent reflecting layer, a high-brightness ink reflecting layer, and an adhesive layer, which are laminated in this order. A transfer foil in which the high-brightness ink reflection layer contains at least a metal vapor-deposited film strip surface-treated with an organic fatty acid, methylsilyl isocyanate, or a cellulose derivative, and which is partially provided by a printing method is prepared. And (b) a step of completely transferring the transfer foil onto at least one surface of a card substrate in a large-sized state or a long web state on which a plurality of cards are attached, and peeling only the transfer substrate. And (c) a step of forming a semi-cured UV anchor layer on the peeling layer exposed by peeling the transfer substrate, via a primer layer,
(D) a step of forming a printing layer on the semi-cured UV anchor layer by an offset printing method and curing the UV anchor layer and the offset printing layer, (e) a step of punching into a card size to obtain a card , Is manufactured from. According to the present invention, a light diffraction image having a partial metallic reflection in a high-brightness ink reflection layer can be obtained, which has a high designability, and can be easily visually checked for authenticity, and forged with a color copy. (EN) Provided is a card having a light diffraction layer which is difficult and has high security, can be manufactured by existing equipment, can be manufactured in a small lot, and is low in cost. A card having a light diffraction layer according to the invention of claim 4 is such that the high-brightness ink reflection layer is provided in synchronization with the diffraction image and / or the printed pattern of the light diffraction layer. According to the present invention, since a light diffraction image synchronized with a printed pattern can be obtained, the design property is higher, and the authenticity can be easily determined by visual inspection, and the light diffraction is highly resistant to forgery by a color copy and has high security. A card having layers is provided.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail with reference to the drawings. (Cards) In recent years, ID cards such as employee ID cards, membership cards, student ID cards, gift certificates, entrance certificates, pass certificates, service points, etc. It has increased. Invisible and visible information is recorded or displayed on these cards. A valid user is authenticated by the information and can be used for various purposes. The invisible information is recorded in the magnetic recording unit, the IC chip, the optical recording unit, etc., and the visible information is displayed by printing, engraving, facial photograph, printing, or the like. Since the medium has a certain economic value and effect, it is constantly improperly forged, altered, or illegally used. In particular, the accuracy of the color copying machine is remarkably improved, and it is easy to forge various media. In order to prevent this, various anti-counterfeiting means are provided. on the other hand,
Card facets are diversifying because they require design. In other words, the number of types (ticket types) of the card itself as an object (which is a card in which information unique to the user is not recorded or displayed and is called a white card or a raw card) is increased, and various white card ticket types are available. There is.

In the state of the white card, it cannot be actually used, and the invisible and visible information is recorded or displayed.
It can be used for the first time. That is, it can be used by mass-producing white cards having a light diffracting layer such as a hologram having both high designability and security in advance, and printing and displaying the intended purpose information and card name. Use as a card. Since the light diffraction layer cannot be reproduced by color copying, it has high security.

First, the transfer foil material, including the provision of a printing layer, which is the first obstacle, is a reflection layer having a partial (pictorial) metallic luster for improving the design of the light diffraction layer, The manufacturing method will be described. FIG. 1 is a sectional view of a card showing an embodiment of the present invention. FIG. 2 is a sectional view of a card showing another embodiment of the present invention. (Layer structure) Figure 1
On the offset printing layer 35 side of the card substrate 21, the transfer substrate 11 / release layer 13 / light diffraction layer 15 / transparent reflection layer 17
/ High-brightness ink reflection layer 18 / The transfer substrate 1 comprising the adhesive layer 19 as necessary is used to peel off and remove the transfer base material 11 to form a transfer layer (peeling layer 13 / light diffraction layer 15 / transparent reflection layer). 1
7 / high-brightness ink reflective layer 18 / adhesive layer 1 if necessary
Only 9) is transferred. Next, a UV primer layer 33 is provided on the peeling layer 13 with a primer layer 31 interposed if necessary. Further, an offset printing layer 35 such as a pattern or a tint block is provided on the UV primer layer 33, and further, a protective layer 37 is provided if necessary.

A magnetic recording layer 23 is usually provided on the back surface of the card substrate 21, but it may be omitted. A description printing layer 27 is provided on the surface of the magnetic recording layer 23, if necessary, via a primer layer 25, and a protective layer 29 is further provided, if necessary. Further, the primer layer 25, the explanatory note printing layer 27, and the protective layer 29 may be appropriately provided according to the use and demand. Further, as shown in FIG. 2, a transfer layer (release layer 13 / light diffraction layer 15 / transparent reflection layer 17 / high-brightness ink reflection layer 18 /
If necessary, the adhesive layer 19) may be transferred to the magnetic recording layer surface of the card base material and may be provided on both surfaces of the card base material.

Next, the transfer foil, the card body, and materials for printing after transfer will be described. FIG. 3 is an explanatory diagram illustrating a method of transferring the transfer layer of the transfer foil to the card body. (Transfer foil) Transfer foil 1 shown in FIG.
Transfer to the card main body 3 of FIG.
Peel and remove. The transfer layer of the transfer foil 1 is the card substrate 2
1 is transferred to FIG. The transfer layer is the release layer 13
/ Light diffraction layer 15 / Transparent reflection layer 17 / High-brightness ink reflection layer 18 / Adhesive layer 19 as required. Also,
A protective layer may be provided between the peeling layer 13 and the light diffraction layer 15 as necessary. Further, the peeling layer 13 may be provided with a protective layer function to serve as a peelable protective layer.

(Protective Layer) The protective layer serves to enhance the peeling property between the transfer substrate 11 and the light diffraction layer 15 and protect the light diffraction layer 15 after the transfer substrate 11 is peeled off. Examples of the material of the protective layer include acrylic resin, polyester resin, amide resin, cellulose resin, vinyl resin, urethane resin, olefin resin, and epoxy resin, and the film thickness thereof is 0.5. ˜5 μm is suitable, but not limited to these.

(Transfer Substrate) As the transfer substrate 11, any film-like material can be used, and its material, thickness and optical characteristics are not limited, and specifically, polyethylene terephthalate. A single substance or a laminate of polybutylene terephthalate, polypropylene, polyimide, polymethylmethacrylate, polystyrene, polycarbonate and the like can be applied. The film thickness is 1 to 1
It is 00 μm, preferably 4 to 25 μm.

(Release Layer) As the release layer 13, a release resin, a resin containing a release agent, a curable resin which is crosslinked by ionizing radiation, a wax or the like can be applied. The releasable resin is, for example, a fluorine resin, silicone, melamine resin, epoxy resin, polyester resin, acrylic resin, fiber resin or the like. Resins containing a release agent include, for example, release agents such as fluorine-based resins, silicones, and various waxes.
Examples thereof include acrylic resins, vinyl resins, polyester resins, and fibrin resins added or copolymerized. A curable resin that is crosslinked by ionizing radiation is, for example, an ultraviolet ray (U
V), polymerization (curing) by ionizing radiation such as electron beam (EB)
It is a resin containing a monomer / oligomer having a functional group.

The release layer 13 is formed by printing a composition ink prepared by dispersing or dissolving the resin in a solvent, such as gravure printing or screen printing, or by low root, reverse roll coating, gravure coating, reverse gravure coating, bar. It is applied by a coating method such as a coat, a rod coat, a kiss coat, a knife coat, a die coat, a comma coat, a flow coat and a spray coat, and the temperature is 30.
Heat-dried at ℃ to 120 ℃ to remove the solvent and release layer 1
3 is formed. The curable resin that is crosslinked by ionizing radiation is a solvent-free composition as it is, or a composition ink dispersed or dissolved in a solvent is applied to at least one part by a known printing method or coating method, and dried if necessary. Then, it is irradiated with ionizing radiation to cure and form. Release layer 1
The thickness of 3 is usually about 0.01 μm to 5.0 μm, preferably about 0.5 μm to 3.0 μm. The thinner the thickness, the better the film without defects is,
If it is 0.1 μm or more, a better film can be obtained and the peeling force becomes stable.

(Light Diffractive Layer) The light diffractive layer 15 is a colorless or colored transparent or semi-transparent layer, and may be a single layer or a multi-layered structure, and unevenness is reproduced by casting or embossing. It is possible to use a thermoplastic resin, a curable resin, or a photosensitive resin composition capable of molding a cured portion and an uncured portion in accordance with light diffraction pattern information. Specifically, for example, thermoplastic resin such as polyvinyl chloride, acrylic (polymethylmethacrylate), polystyrene, or polycarbonate, unsaturated polyester, melamine, epoxy, polyester (meth) acrylate, urethane (meth) acrylate, epoxy ( (Meth) acrylate, polyether (meth) acrylate, polyol (meth)
A thermosetting resin such as acrylate, melamine (meth) acrylate, or triazine-based acrylate, each of which is used alone, thermoplastic resins, or a mixture of thermosetting resins, or a mixture of a thermoplastic resin and a thermosetting resin. And so on. Those having a radical polymerizable unsaturated group and having thermoformability, and ionizing radiation curable resin compositions to which a radical polymerizable unsaturated monomer is added can also be used.

Further, an ionizing radiation curable resin (light diffraction layer 1
As 5), an epoxy-modified acrylate resin, a urethane-modified acrylate resin, an acrylic-modified polyester or the like can be applied, and a urethane-modified acrylate resin is preferable, and a urethane-modified acrylic resin represented by the following general formula is particularly preferable.

[0017]

[Chemical 1] Here, 6 R ₁ 's each independently represent a hydrogen atom or a methyl group, R ₂ 's represent a hydrocarbon group having 1 to 16 carbon atoms, and X and Y represent a linear or branched chain. Represents an alkylene group. When the total of 1, m, n, o and p is 100, 1 is 20 to 90, m is 0 to 80,
n is 0 to 50, o + p is 10 to 80, and p is an integer of 0 to 40.

The urethane-modified acrylic resin represented by the above formula (1) is, for example, as a preferred example, 20 to 90 mol of methyl methacrylate, 0 to 50 mol of methacrylic acid, and 10 to 80 mol of 2-hydroxyethyl methacrylate. An acrylic copolymer obtained by copolymerizing 0 to 80 mol of isobornyl methacrylate as Z, wherein methacryloyloxyethyl isocyanate (2-isocyanatoethyl methacrylate) is added to the hydroxyl groups present in the copolymer. It is a resin obtained by reaction.

Therefore, it is not necessary for the methacryloyloxyethyl isocyanate to react with all the hydroxyl groups present in the copolymer, and at least one of the hydroxyl groups of the 2-hydroxyethyl methacrylate unit in the copolymer is
It is sufficient that 0 mol% or more, preferably 50 mol% or more, react with methacryloyloxyethyl isocyanate. Instead of or in combination with the above 2-hydroxyethyl methacrylate, N-methylol acrylamide, N-
Methylol methacrylamide, 2-hydroxyethyl acrylate, 2-hydroxyethyl methacrylate, 2
A monomer having a hydroxyl group such as -hydroxypropyl acrylate, 2-hydroxypropyl methacrylate, 4-hydroxybutyl acrylate, 4-hydroxybutyl methacrylate can also be used.

As described above, by utilizing a hydroxyl group existing in a hydroxyl group-containing acrylic resin, a resin composition containing a urethane-modified acrylic resin as a main component, in which a large number of methacryloyl groups are introduced into the molecule, can be used, for example. When forming a diffraction grating, etc., it is possible to use ionizing radiation such as ultraviolet rays or electron beams as a curing means, and to form a diffraction grating having a high crosslink density and excellent flexibility and heat resistance. You can

The urethane-modified acrylic resin represented by the above formula (1) is dissolved in a solvent capable of dissolving the copolymer, for example, a solvent such as toluene, ketone, cellosolve acetate, dimethylsulfoxide, By adding and reacting methacryloyloxyethyl isocyanate while stirring this solution, the isocyanate group reacts with the hydroxyl group of the acrylic resin to form a urethane bond, and the methacryloyl group is introduced into the resin through the urethane bond. be able to. The amount of methacryloyloxyethyl isocyanate used in this case is in the range of 0.1 to 5 moles, preferably 0.5 to 3 moles, of isocyanate group per mole of hydroxyl group in the ratio of hydroxyl group to isocyanate group of acrylic resin. Is the amount. When using methacryloyloxyethyl isocyanate in an amount equal to or more than the hydroxyl group in the resin, the methacryloyloxyethyl isocyanate also reacts with a carboxyl group in the resin to form -CONH-CH ₂ CH ₂ -linkage. It is possible.

Z in the above formula (1) can be introduced to modify the above urethane-modified acrylic resin, for example, an aromatic ring such as a phenyl group or a naphthyl group or a heteroaromatic ring such as pyridine. Having a polymerizable double bond group such as (meth) acryloyl-modified silicone oil (resin), vinyl-modified silicone oil (resin), and lauryl (meth)
Monomers having long-chain alkyl groups such as acrylate and stearyl (meth) acrylate, monomers having silicon-containing groups such as γ- (meth) alkoxypropyltrimethoxysilane, 2- (perfluoro-7-methyloctyl)
Ethyl acrylate, heptadecafluorodecyl (meth)
Monomers that impart releasability such as monomers having a fluorine-containing group such as acrylate, isobornyl (meth) acrylate, cyclohexyl (meth) acrylate, dicyclopentanyl (meth) acrylate, dicyclopentenyl (meth) acrylate, EO Any monomer having a bulky structure such as modified dicyclopentenyl (meth) acrylate and a monomer having a cyclic hydrophilic group such as acryloylmorpholine, vinylpyrrolidone or vinylcaprolactone can be used.

In the above general formula (1), the above example
In the case where all R ₁ and R ₂ are methyl groups and X and Y are ethylene groups, the present invention is not limited thereto, and 6 R _1's are each independently a hydrogen atom or a methyl group. Group, and specific examples of R ₂ include, for example, methyl group, ethyl group, n- or iso-propyl group, and n.
-, Iso- or tert-butyl group, a substituted or unsubstituted phenyl group, a substituted or unsubstituted benzyl group, and the like, and specific examples of X and Y include an ethylene group, a propylene group, a diethylene group, and dipropylene. Groups and the like.
As for the overall molecular weight of the urethane-modified acrylic resin used in the present invention thus obtained, the average molecular weight in terms of standard polystyrene measured by GPC is 10,000 to 20.
And more preferably from 20,000 to 40,000.

Further, in order to adjust the flexibility and viscosity of the ionizing radiation-curable resin layer (light diffraction layer 15) after curing, the ionizing radiation-curable resin of the present invention includes ordinary thermoplastic resins,
Acrylic and other monofunctional or polyfunctional monomers, oligomers and the like can be included. For example,
For monofunctional, tetrahydrofurfuryl (meth) acrylate, hydroxyethyl (meth) acrylate, vinylpyrrolidone, (meth) acryloyloxyethyl succinate, (meth) acryloyloxyethyl phthalate, and other mono (meth) acrylates; When classified by skeleton structure, polyol (meth) acrylates such as epoxy-modified polyol (meth) acrylate and lactone-modified polyol (meth) acrylate, polyester (meth) acrylate, epoxy (meth) acrylate, urethane (meth) acrylate, and other polybutadiene-based, Poly (meth) acrylate with isocyanuric acid type, hydantoin type, melamine type, phosphoric acid type, imide type, phosphazene type, etc. Monomers, oligomers, polymers may be utilized such.

More specifically, a bifunctional monomer,
As the oligomer, polyethylene glycol di (meth) acrylate, polypropylene glycol di (meth) acrylate, neopentyl glycol di (meth) acrylate
Acrylate, 1,6-hexanediol di (meth) acrylate, etc. Trifunctional monomers, oligomers, polymers such as trimethylolpropane tri (meth) acrylate, pentaerythritol tri (meth) acrylate, aliphatic tri (meth) acrylate, etc. Examples of tetrafunctional monomers and oligomers include pentaerythritol tetra (meth) acrylate, ditrimethylolpropane tetra (meth) acrylate, aliphatic tetra (meth) acrylate, and the like. Pentaerythritol penta (meta)
Acrylate, dipentaerythritol hexa (meth)
Other than acrylate and the like, (meth) acrylate having a polyester skeleton, a urethane skeleton, a phosphazene skeleton, and the like can be given.

The number of functional groups is not particularly limited, but if the number of functional groups is smaller than 3, the heat resistance tends to be lowered, and a part of the light diffraction layer 15 is scratched or the relief surface becomes cloudy. Further, when it is 20 or more, the flexibility tends to be lowered, and therefore, those having 3 to 20 functional groups are particularly preferable.

A plurality of the above-mentioned monomers or oligomers may be used in combination. The amount used is in the range of 5 to 90 parts by mass, preferably 10 to 70 parts by mass, per 100 parts by mass of the urethane-modified acrylic resin. When the amount of the monomer or oligomer used is less than the above range, the strength, heat resistance, scratch resistance, water resistance, chemical resistance, and adhesion to the base material 11 of the resulting ionizing radiation curable resin layer cannot be said to be sufficient. If the amount of the monomer or oligomer used exceeds the above range, the surface tack becomes high, causing blocking, or a part of the material remains on the plate (press stamper) at the time of relief duplication such as a relief hologram or a diffraction grating. It is not preferable in that the phenomenon that a trader calls it as a printing plate) and the repeated relief replication property (embossing property) are reduced.

Further, when a relief is formed (reproduced) on the ionizing radiation curable resin layer (light diffraction layer 15), a stamper (metal plate, or metal plate, or a relief plate) having a relief relief formed on the surface of the light diffraction layer 15 is formed. A resin plate) is pressure-bonded to form (reproduce) the uneven relief on the light diffraction layer 15. At this time, a release agent may be contained in the light diffraction layer 15 in advance so that the stamper can be easily peeled off from the light diffraction layer 15. As the release agent, a known release agent can be applied, and examples thereof include solid waxes such as polyethylene wax, amide wax, and fluororesin powder, fluorine-based and phosphoric ester-based surfactants, silicones, and the like. Preferably, the release agent is a modified silicone. Specifically, modified silicone oil side-chain type, modified silicone oil both-end type, modified silicone oil one-end type, modified silicone oil side-chain both-end type, methylpolysiloxane containing trimethylsiloxysilicic acid (referred to as silicone resin). ), Silicone-grafted acrylic resin, and methylphenyl silicone oil.

The modified silicone oil includes reactive silicone oil and non-reactive silicone oil. Examples of the reactive silicone oil include amino modification, epoxy modification, carboxyl group modification, carbinol modification, methacryl modification, mercapto modification, phenol modification, one-terminal reactivity, and different functional group modification. As non-reactive silicone oil, polyether modified, methyl styryl modified,
There are alkyl modification, higher fatty ester modification, hydrophilic special modification, higher alkoxy modification, higher fatty acid modification, fluorine modification and the like.

Among the silicone oils mentioned above, the reactive silicone oil reacts with the resin upon curing by ionizing radiation and is bonded and integrated. Therefore, there is no bleed-out (bleeding) to the surface of the light diffraction layer 15 on which relief relief unevenness is formed later. This characteristic performance can remarkably improve the adhesion between the light diffraction layer 15 and the transparent reflection layer 17 provided on the relief surface thereof. The release agent is used in an amount of about 0.1 to 50 parts by mass, preferably about 0.5 to 10 parts by mass, per 100 parts by mass of the ionizing radiation curable resin. When the amount of the release agent used is less than the above range, peeling between the press stamper and the ionizing radiation curable resin layer is insufficient,
It is difficult to prevent contamination of the press stamper.
On the other hand, when the amount of the release agent used exceeds the above range, cissing occurs during coating of the composition, the surface of the coating film becomes rough, or the adhesiveness to the base material or the reflective layer deteriorates, and transfer At times, the film of the light diffraction layer 15 is broken (the film strength becomes too weak), which is not preferable.

Furthermore, in order to improve the heat resistance, film strength, and adhesion of the cured ionizing radiation curable resin layer (light diffraction layer 15) to the transparent reflection layer 17, the ionizing radiation curable resin of the present invention. The organic metal coupling agent may be contained in advance. Examples of the organic metal coupling agent include known silane coupling agents, titanium coupling agents, zirconium coupling agents, and aluminum coupling agents.

As the silane coupling agent, for example,
A crosslinkable silane coupling agent such as a silane coupling agent having a vinyl group, an epoxy group, a mercapto group (thiol group), an amino group or a hydroxyl group at the terminal can be applied.
Examples of the silane coupling agent having a vinyl group at its end include vinyltrimethoxysilane and vinyltriethoxysilane. Epoxy group-terminated silane coupling agents include γ-glycidyloxypropyltrimethoxysilane, γ-glycidyloxypropyltriethoxysilane, γ-glycidyloxypropylmethyldimethoxysilane, methacryloxypropyltrimethoxysilane, methacryloxypropyl Examples include triethoxysilane and methacryloxypropylmethyldimethoxysilane. Examples of the silane coupling agent having a mercapto group (thiol group) at the terminal include γ-mercaptopropyltrimethoxysilane, mercaptopropyltriethoxysilane, and β-mercaptoethylmethyldimethoxysilane. Examples of the silane coupling agent having an amino group at the terminal include γ-aminopropyltriethoxysilane, aminopropyltrimethoxysilane, γ-aminopropoxypropyltrimethoxysilane, β-aminoethyltrimethoxysilane, N- (β-amino ethyl)-
γ-aminopropyltripropyltrimethoxysilane,
Examples include N- (β-aminoethyl) -γ-aminopropyltripropylmethyldimethoxysilane. Examples of compounds having a hydroxyl group include β-hydroxyethoxyethyltriethoxysilane and γ-hydroxypropyltrimethoxysilane. These silane coupling agents may be used alone or in combination of two or more.

The titanium coupling agent is, for example,
There are titanium alkoxides such as tetraisopropyl titanate and tetra n-butyl titanate, and titanium chelates such as titanium acetylacetonate and titanium tetraacetylacetonate.

Examples of zirconium coupling agents include zirconium alkoxides such as tetra-n-propoxyzirconium and tetra-butoxy, zirconium tetraacetylacetonate, zirconium dibutoxybis (acetylacetonate), zirconium tributoxyethyl acetoacetate, zirconium. There are zirconium chelates such as butoxyacetoacetonate bis (ethylacetoacetate).

Examples of the aluminum coupling agent include aluminum isopropylate, monosec-butoxyaluminum diisopropylate, aluminum alcoholate such as aluminum ethylate, ethyl acetoacetate aluminum diisopropylate, aluminum tris (ethylacetoacetate), etc. Aluminum chelate, cyclic aluminum oligomer and the like.
Such an organometallic coupling agent is preferably used in the range of 0.1 to 10 parts by mass per 100 parts by mass of the ionizing radiation curable resin.

The above ionizing radiation curable resin becomes an ionizing radiation curable resin (light diffraction layer 15) when it is irradiated with ionizing radiation and cured (reacted) after forming a relief. As the ionizing radiation, ultraviolet rays (UV), visible rays, gamma rays, X-rays, electron rays (EB), etc. can be applied,
Ultraviolet rays (UV) and electron beams (EB) are suitable. The ionizing radiation-curable resin that cures with ionizing radiation may be added with a photopolymerization initiator and / or a photopolymerization accelerator in the case of ultraviolet curing, and may not be added in the case of electron beam curing with high energy, and is also appropriate. If such a catalyst is present, it can be cured by thermal energy.

As the photopolymerization initiator, for example, acetophenones, benzophenones, Michler benzoyl benzoate, α-amyloxime ester, tetramethylmeuram monosulfide, thioxanthones and the like can be applied. Further, if necessary, a photosensitizer and a photopolymerization accelerator are added. The photosensitizer and the photopolymerization accelerator may be known photosensitizers, for example, benzoin such as benzoin, benzoin methyl ether, benzoin ethyl ether, benzoin isopropyl ether, α-methylbenzoin and α-phenylbenzoin. Compounds; anthraquinone compounds such as anthraquinone and methylanthraquinone; benzyl; diacetyl; phenylketone compounds such as acetophenone and benzophenone; sulfide compounds such as diphenyldisulfide, tetramethylthiuram sulfide; α-chloromethylnaphthalene; anthracene and hexachlorobutadiene, penta There are halogenated hydrocarbons such as chlorobutadiene, n-butylamine, triethylamine, and tri-n-butylphosphine. The content of such a photopolymerization initiator and photosensitizer is about 0. 0 per 100 parts by mass of the urethane-modified acrylic resin.
It is preferably used in the range of 5 to 10 parts by mass.

In the ionizing radiation-curable resin composition of the present invention, in addition to the above components, phenols such as hydroquinone, t-butylhydroquinone, catechol and hydroquinone monomethyl ether; quinones such as benzoquinone and diphenylbenzoquinone; Phenothiazine, etc .: When a polymerization inhibitor such as copper is added, storage stability is improved.
Further, if necessary, various auxiliary agents such as an accelerator, a viscosity modifier, a surfactant and an antifoaming agent may be added. It is also possible to blend a polymer such as styrene / butadiene rubber.

(Formation of Light Diffraction Layer) The light diffraction layer 15 is formed by dissolving or dispersing the above-mentioned materials in a solvent and adding an appropriate additive to the composition ink by gravure printing, screen printing or the like. Printing method, or low root,
It may be applied by a coating method such as reverse roll coating, gravure coating, reverse gravure coating, or bar coating, and heated and dried at a temperature of 30 ° C to 120 ° C. The thickness after drying is about 0.1 to 20 μm, 0.5 to 1
0 μm is preferable.

(Formation of Relief) Next, the transfer substrate 11 /
A relief is formed on the light diffraction layer 15 having a layer structure of the peeling layer 13 / the light diffraction layer 15. The relief is formed with a surface uneven pattern (light diffraction pattern) capable of reproducing a two-dimensional or three-dimensional image. As the surface uneven pattern, a hologram or a diffraction grating in which the light intensity distribution of the interference fringes due to the interference between the object light and the reference light is recorded in an uneven pattern can be applied.

As the (hologram) hologram, a Fresnel hologram, a Fraunhofer hologram, a lensless Fourier transform hologram, a laser reproduction hologram such as an image hologram, a white light reproduction hologram such as a rainbow hologram, and a color utilizing those principles. There are holograms, computer holograms, hologram displays, multiplex holograms, holographic stereograms, holographic diffraction gratings, and the like. (Diffraction Grating) As the diffraction grating, a holographic diffraction grating using a hologram recording means can be cited. In addition, a diffraction grating can be mechanically created using an electron beam drawing device or the like, so that an arbitrary diffraction grating can be calculated. A diffraction grating that can obtain diffracted light can also be used. These holograms and / or diffraction gratings may be recorded singly or in multiples, or may be recorded in combination.

Usually, for shaping, a stamper (metal plate or resin plate) having a relief formed thereon is pressure-bonded (so-called embossing) to the surface of the light diffraction layer 15, and the relief is formed on the light diffraction layer 15. After forming (replicating), the stamper is peeled off. Although the master itself can be used as a stamper that duplicates the relief, there is a risk of wear and damage.Therefore, as with analog records, the metal plating or UV curable resin is applied to the master and it is irradiated with UV light to cure it. By a method such as peeling off (referred to as a 2P method by those skilled in the art), metal or resin is used for duplication, and the duplication (stamper) is used for commercial duplication.

(Commercial Duplication) In the commercial duplication method, a die or a resin stamper is used to emboss the surface of the light diffraction layer 15 to duplicate the relief and then irradiate with ionizing radiation, or The relief is duplicated by irradiating ionizing radiation during embossing and then peeling off the stamper. This commercial reproduction can be performed in a continuous shape so that continuous reproduction work can be performed.

(Ionizing Radiation) The surface of the light diffraction layer 15 is irradiated with ionizing radiation during embossing with a stamper, after embossing, or after embossing and after embossing to cure the ionizing radiation curable resin. As the ionizing radiation, ultraviolet rays (UV), visible rays, gamma rays, X-rays, electron rays (EB) and the like can be applied, but ultraviolet rays (U
V) and electron beam (EB) are preferable.

(Electron Beam) In the electron beam (EB) irradiation, an electron beam generated by an electron beam accelerator is irradiated. As the electron beam irradiation device, for example, various electron beam accelerators such as Cockloft-Walton type, Van de Graaff type, resonance transformer type, insulating core transformer type, linear type, dynamitron type, high frequency type, etc. are used. Tron curtain method,
Irradiate the electron beam by beam scanning method. Preferably, it is an apparatus "electro curtain" (trade name) that can irradiate a curtain-shaped uniform electron beam from a linear filament. The electron beam irradiation amount is usually 100 to 1000.
An electron having an energy of keV, preferably 100 to 300 keV is irradiated at a dose of about 0.5 to 20 Mrad. If the irradiation dose is less than 0.5 Mrad, the unreacted monomer may remain and curing may be insufficient. If the irradiation dose exceeds 20 Mrad, the crosslinking density becomes high and the cured binder or substrate may , May be damaged. In addition, the atmosphere during curing has an oxygen concentration of 50.
It is carried out at 0 ppm or less, and normally it is preferably carried out at about 200 ppm.

(Ultraviolet rays) Ultraviolet rays (U
As the V) lamp, a high pressure mercury lamp or a metal halide lamp can be applied. The wavelength of ultraviolet rays is about 200 to 400 nm, and the wavelength may be appropriately selected according to the ultraviolet curable resin composition. The amount of irradiation depends on the material and amount of the composition and UV.
Irradiation may be performed according to the lamp output and the processing speed. Preferably, the wavelength of ultraviolet rays is 300 to 400 nm.

(Transparent Reflection Layer) The transparent reflection layer 17 is the light diffraction layer 1 provided with a relief structure such as a hologram or a diffraction grating.
By providing the transparent reflection layer 17 on the reliefs of the five surfaces,
The reproduced image of the hologram and / or the diffraction grating can be clearly recognized. As the transparent reflection layer 17, a transparent metal compound having a refractive index different from that of the surface of the light diffraction layer 15 is used. Since the optical refractive index thereof is different from that of the light diffractive layer, the relief such as a hologram can be visually recognized with a substantially colorless and transparent hue and without metallic luster. As for the refractive index of the transparent reflective layer 17, the larger the difference in refractive index from the surface of the light diffraction layer 15 is, the more effective the refractive index is.
3 or more, preferably 0.5 or more, more preferably 1.
It is 0 or more. For example, ZnS, TiO ₂ , Al ₂ O ₃ ,
Sb ₂ O ₃ , SiO, TiO, SiO ₂ , ITO, etc. can be applied, and preferably ITO or tin oxide, each having a refractive index of 2.0 and having a sufficient difference in refractive index. There is. Further, if the refractive index is small, LiF, Mg
Examples include F ₂ and AlF ₂ . The term “transparent” means that visible light can be sufficiently transmitted, and includes colorless or colored and transparent ones.

The formation of the above-mentioned transparent metal compound is about 10 to 2000 nm, preferably 100 to 1000 nm.
It is obtained by vacuum thin film method such as vapor deposition method, sputtering method, and ion plating method so as to have a thickness of nm. When the thickness of the transparent reflection layer 17 is less than this range, light is transmitted to some extent and the effect is reduced, and above that, the reflection effect does not change, which is wasteful in terms of cost.

(High-Brightness Ink Reflection Layer) A high-brightness ink reflection layer 18 is partially (patternally) provided on the transparent reflection layer 17 surface. As a result, a reproduced image of a hologram having a metallic luster (metallic reflection luster) and / or a diffraction grating can be clearly visible. On the other hand, the part where the high-brightness ink reflection layer 18 is partially lacked remains a transparent hologram. Furthermore, designability and security are enhanced by synchronizing an image (pattern) by offset printing, which will be described later, with the images of the transparent reflective layer 17 and / or the high-brightness ink reflective layer 18. Conventionally, as the high-brightness ink reflection layer 18 having a metallic luster, an aluminum metal thin film formed by a vacuum vapor deposition method has been usually used except for those exhibiting a special function. Others, for example, aluminum foil of the rolling method, the metallic luster of the thin metal film of the vacuum thin film method,
I couldn't get it. In addition, other metals have a color tone and are expensive. As described above, the vacuum evaporation aluminum thin film has been used for almost all practical purposes and for a long period of time.

Further, conventionally, there has been a printing ink which imparts metallic luster, but the ink is a metallic printing ink such as silver or gold using a metallic pigment such as aluminum paste or aluminum powder. There are leafing type and non-leafing type aluminum pastes, which are far inferior to the metallic luster of the metal thin film in the vacuum thin film method. Further, there was an ink using a powder obtained by pulverizing a vapor-deposited aluminum thin film, but the surface treatment was different and the dispersibility was poor, and sufficient high brightness could not be obtained.

However, in the present invention, a high-brightness ink capable of obtaining a metallic luster comparable to the metallic thin film of the vacuum thin film method is used in the printing method. That is, using a high-brightness ink containing at least a metal vapor deposition film strip surface-treated with an organic fatty acid, methylsilyl isocyanate, or a cellulose derivative, high brightness can be exhibited by a printing method and used for a reflection layer of a light diffraction image. I found that I can do it. Furthermore, since it is a printing method, it is easy to provide the high-brightness ink reflecting layer by synchronizing the partial high-brightness ink reflecting layer and, if there is another printing layer, with this printed pattern. Further, it can be manufactured with existing printing equipment without using an expensive vacuum vapor deposition machine. Partially provided by a printing method using the high-brightness ink reflection layer, and by being provided in synchronization with the printed pattern,
The design effect is enhanced. Partial can be any picture, such as letters, numbers, symbols, illustrations, patterns and photographs.
At least, the high-brightness ink reflection layer 18 composed of a metal vapor deposition film strip surface-treated with an organic fatty acid, methylsilyl isocyanate, or a cellulose derivative and a binder,
The design is highly effective, the authenticity can be easily judged visually, the security is enhanced, small-lot production can be supported, and the cost can be reduced.

Further, the aluminum thin metal film formed by the conventional vacuum deposition method has sufficient metallic luster. However, in order to enhance the design, in order to provide a partial aluminum metal thin film, once the aluminum metal thin film is provided on the entire surface by the vacuum film forming method, the resist is printed and etched in a separate step. Very expensive,
Moreover, the number of manufacturing processes is large, and it is not suitable for small-lot production.

(High-Brightness Ink) Therefore, as the high-brightness ink reflection layer 18 of the present invention, a high-brightness ink having an arbitrary image pattern is formed by a printing method using a high-brightness ink having a metallic luster comparable to a metal vapor deposition film. The reflective layer 18 is used. By obtaining the high-brightness ink reflection layer 18 having the arbitrary image pattern, the light diffraction image of the light diffraction layer 24 corresponding to this can be visually recognized. The ink is obtained by surface-treating a metal vapor-deposited film strip with an organic fatty acid, methylsilylisocyanate, or a cellulose derivative to improve dispersibility in the ink, thereby increasing the metallic luster of the ink coating film. . The ink comprises a metal vapor deposition film strip surface-treated with an organic fatty acid, methylsilyl isocyanate, or a cellulose derivative, a binder, an additive, and a solvent. If necessary, a gravure ink, a screen ink, or a flexo ink may be formed. Good.

Aluminum can be applied as the metal of the metal vapor deposition film strip, but gold, silver, copper, brass, titanium, chrome, nickel, nickel chrome, stainless steel and the like can also be used if necessary. The thickness of the metal vapor deposition film is 0.01
Is preferably 0.1 μm, more preferably 0.03
It is 0.08 μm, and the size of the metal vapor deposition film strips dispersed in the ink is preferably 5 to 25 μm, more preferably 10 to 15 μm. If the size is less than this range, the brightness of the ink coating becomes insufficient, and if it exceeds this range, it is difficult to enter the cells of the gravure plate, the screen plate is easily clogged, and the gloss of the printing film decreases. To do.

As for the metal vapor deposition film strip, first, a vapor deposition film composed of polyester film / release layer / vapor deposition film / antioxidant top coat layer on the surface is prepared. Although the release layer and the top coat layer are not particularly limited, for example, a cellulose derivative, an acrylic resin, chlorinated polypropylene, or the like can be applied. The vapor-deposited film is immersed in a solvent, and the metal vapor-deposited film is peeled off, stirred, filtered, and dried to obtain a metal vapor-deposited film strip. An organic fatty acid, methylsilyl isocyanate, or cellulose derivative solution is added to the metal vapor-deposited film strip while stirring at a temperature of 10 to 35 ° C. for about 30 minutes to add an organic fatty acid, methylsilyl isocyanate, to the surface of the metal vapor-deposited film strip. Alternatively, the cellulose derivative is adsorbed and the surface treatment of the metal vapor deposition film strip is performed. As the organic fatty acid, stearic acid, oleic acid, palmitic acid and the like can be applied. As the cellulose derivative, nitrocellulose, cellulose acetate propionate, cellulose acetate butyrate, ethyl cellulose and the like can be applied. When the metal is aluminum, the amount of the organic fatty acid, methylsilyl isocyanate, or cellulose derivative added is preferably 1 to 20 mass% with respect to the vapor-deposited film strip.

After the surface treatment, the metal vapor deposition film strips are separated,
Alternatively, the metal vapor deposition film strip slurry is directly mixed with a binder and a solvent and dispersed to form an ink. The binder may be a known ink, for example,
(Meth) acrylic resin, polyester, polyamide, polyurethane, shellac, alkyd resin and the like. If necessary, additives such as coloring pigments, dyes, waxes, plasticizers, leveling agents, surfactants, dispersants, defoamers and chelating agents may be added to the ink. As the ink solvent, known ink solvents can be used, and examples thereof include aromatic hydrocarbons such as toluene and xylene, aliphatic or alicyclic hydrocarbons such as n-hexane and cyclohexane, ethyl acetate and acetic acid. Examples include esters such as propyl, alcohols such as methanol, ethanol and IPA, ketones such as acetone and MEK, and alkylene glycol monoalkyl ethers such as ethylene glycol monoethyl ether and propylene glycol monomethyl ether.

Ordinary ink is kneaded by a roll mill, a ball mill or the like, and the pigmented additive is made into fine particles of submicron and highly dispersed to have printability.
However, the high-brightness ink used in the present invention does not require a kneading step and can be dispersed simply by mixing with a stirrer, and the metallic luster is not impaired. That is, in order to develop a high-luminance metallic luster, the size of the metal vapor deposition film strip should be 5 to 5.
About 25 μm is required, and when the above kneading step is performed, the metallic luster is extremely reduced.

(Printing of high-brightness ink) The ink thus obtained is subjected to known gravure printing, screen printing or flexo printing to make a desired pattern, printing, drying, and if necessary. And cure. In this way, the high-brightness ink reflection layer 18 of a partial or arbitrary image
Is obtained. Further, the high-brightness ink reflection layer 18 may be colored, a dye and / or a pigment may be added to the high-brightness ink, or a surface on which metal fatty acid film strips are adsorbed with an organic fatty acid, methylsilyl isocyanate, or a cellulose derivative. A dye and / or a pigment may be added to the organic fatty acid, methylsilylisocyanate, or cellulose derivative solution when the treatment is carried out. The coloring may be transparent, semi-transparent or opaque, and if it is semi-transparent or a small amount of opaque coloring, a pearly or pastel appearance can be obtained.

(Adhesive Layer) Next, the high-brightness ink reflection layer 18
A thermal adhesive layer 19 is provided on the surface as needed. In the case of the laminate transfer method described later, the thermal adhesive layer 19 may be omitted. As a material for the heat-bonding layer 19, a known heat-sensitive adhesive that melts or softens when heated to exert an adhesive effect can be applied, and specifically, vinyl chloride vinyl acetate copolymer resin, acrylic resin, Examples include polyester resins. The material resin is dissolved or dispersed in a solvent, an additive such as a pigment is appropriately added, and the material resin is applied by a known method such as roll coating or gravure coating and dried to have a thickness of about 0.1 to 30 μm, preferably Is a layer of 0.5 to 10 μm.

(Adhesive Layer) As the adhesive layer 19, a heat-adhesive adhesive which is melted or softened by heat to be adhered, or an adhesive adhesive (also referred to as a pressure-sensitive adhesive) can be applied. Examples of heat-bonding adhesives include ionomer resins, acid-modified polyolefin-based resins, ethylene- (meth) acrylic acid copolymers, ethylene- (meth) acrylic acid ester copolymers, polyester-based resins, polyamide-based resins, Vinyl resin, (meth) acrylic resin such as acrylic / methacrylic resin,
Acrylic ester resin, maleic acid resin, butyral resin, alkyd resin, polyethylene oxide resin, phenol resin, urea resin, melamine resin, melamine-alkyd resin, cellulose resin, polyurethane resin, polyvinyl ether resin, silicone Resins, rubber-based resins and the like can be applied, and these resins can be used alone or in combination.

Acrylic resins, butyral resins, and polyester resins are preferable as the resin for the adhesive layer 19 in terms of adhesive strength and the like. The thickness of the adhesive layer 19 is usually about 0.2 to 10 μm, preferably 0.5 to 5 μm. If the thickness of the adhesive layer 19 is less than this range, the adhesive force to the transfer target is insufficient and the adhesive layer 19 falls off. If the thickness is more than this range, the adhesive effect is sufficient and the effect does not change. Moreover, the heat of the thermal head is wasted. Furthermore, additives such as a filler, a plasticizer, a colorant, and an antistatic agent may be appropriately added to the adhesive layer 19 as needed. As the filler, extender pigments such as silica and calcium carbonate can be applied. In particular, the addition of extender pigment improves foil breakage. As an antistatic agent,
Nonionic surfactants, anionic surfactants, cationic surfactants, polyamides, acrylic acid derivatives and the like can be applied.

The adhesive (pressure-sensitive) type adhesive is not particularly limited, and examples thereof include natural rubber type and synthetic rubber type such as butyl rubber / polyisoprene / polyisobutylene / polychloroprene / styrene-butadiene copolymer resin. Resin, silicone resin, acrylic resin, polyvinyl acetate resin such as polyvinyl acetate / ethylene-vinyl acetate copolymer, urethane resin, acrylonitrile, hydrocarbon resin, alkylphenol resin, rosin, rosin triglyceride, hydrogenated rosin, etc. The rosin resin of can be applied. The adhesives described above are also useful, but preferably
It is a two-component curing type urethane adhesive or epoxy adhesive which is used by mixing polyisocyanate, polyol and a catalyst immediately before use.

Next, a description will be given of a manufacturing method in which the transfer work to the card base material, which is the second obstacle, is transferred from one by one to a plurality of cards in a continuous operation in a continuous operation. Figure 4
It is a typical sectional view explaining the conventional transfer method. Figure 5
FIG. 4 is a schematic cross-sectional view illustrating a transfer method of the present invention. FIG. 6 is a schematic cross-sectional view illustrating another transfer method of the present invention. (Transfer Method) The transfer method shown in FIG. 4 is a conventional method, which is called a hot stamp method by those skilled in the art. The card body 3 and the adhesive layer 19 surface of the transfer foil 1 are overlaid,
From the transfer foil 1 side, a heated mold called a stamper is pressed. The adhesive layer 19 of the transfer foil 1 softens or melts and adheres to the card substrate 21. Then, by peeling and removing the transfer base material, only the transfer layer is transferred and transferred to the card side. However, in the conventional method, there is a problem that the stamper needs to be made each time according to the application and the transfer speed is extremely slow and mass production cannot be performed at low cost.

(Full surface transfer method) Therefore, in the present invention, the transfer layer of the transfer foil 1 is continuously transferred over the entire surface. FIG. 5 shows a thermal transfer method, and FIG. 6 shows a laminate transfer method. (Whole surface thermal transfer method) In FIG. 5, the transfer foil 1 is fed from the supply unit 41 in a continuous web shape. On the other hand, the card body 3 is also fed from the supply unit 42 in a continuous web shape. Adhesive layer 1 of transfer foil 1 drawn out in web form
The nine surfaces and the card base material 21 surface of the card body 3 are superposed, sandwiched between the heating roll 45 and the receiving roll 47, and run according to the rotation of the rolls. At the peeling portion 51 released from the heating and pressing of the roll, the transfer base material 11 of the transfer foil 1 is
The transfer base material 53 that has been peeled off is wound up on the winding portion 49. By doing so, it is possible to perform the transfer operation continuously and efficiently and inexpensively using the existing simple thermal laminator. The card body 3 does not have to be a long continuous web shape, but may be in a large-sized sheet state in which a plurality of cards are faced and cut. The same result can be obtained by intermittently sending out the large-sized sheets in a bead-like shape. Here, the large-sized sheet refers to a raw material of a card main body having a size capable of punching a standard size completed card into 2 to 8 lengthwise, 4 to 10 widthwise, and a total of 8 to 80 cards.

(Laminate Transfer Method) Further, in the present invention,
It is also possible to use a laminate transfer method in which the entire surface is continuously laminated using a laminator as shown in FIG. 6 and then the transfer substrate is peeled off. This laminating method is a laminating method called dry lamination (also referred to as dry laminating or dry laminating) by those skilled in the art. The transfer foil 1 is fed out in a continuous web shape from the wound state. On the other hand, the card body 3 is also extended from the wound state in a continuous web shape in a long length. In this case, the transfer foil 1 is not provided with the adhesive layer 19 and is formed by sequentially laminating the transfer substrate / release layer / light diffraction layer / transparent reflection layer / high brightness ink reflection layer.

(Dry Lamination Method) The dry lamination method is a method in which an adhesive dispersed or dissolved in a solvent is applied, dried, and laminated laminated substrates are laminated and then laminated at 30 to 120 ° C. for several hours to several hours. It is a method of laminating two kinds of materials by curing the adhesive by aging for a day. The non-solvent lamination method, which is a modification of the method, means that the adhesive itself is applied without being dispersed or dissolved in a solvent and dried, and the bonded base materials are laminated and laminated, and then at 30 to 120 ° C. for several hours to several hours. It is a method of laminating two kinds of materials by curing the adhesive by aging for a day.

As the adhesive for the adhesive layer used in the dry lamination method or the non-solvent lamination method, an adhesive which is cured by heat or ionizing radiation such as ultraviolet rays or electron beams can be applied. As the thermosetting adhesive, specifically, a two-component curing type urethane adhesive, a polyester urethane adhesive, a polyether urethane adhesive, an acrylic adhesive, a polyester adhesive, a polyamide adhesive, A polyvinyl acetate-based adhesive, an epoxy-based adhesive, a rubber-based adhesive or the like can be applied, but a two-component curing type urethane-based adhesive is preferable.

The two-component curing type polyurethane resin is, for example, a polymer obtained by reacting a polyfunctional isocyanate with a hydroxyl group-containing compound, specifically, for example, tolylene diisocyanate. Nart,
Aromatic polyisocyanate such as diphenylmethane diisocyanate, polymethylene polyphenylene polyisocyanate, or hexamethylene diisocyanate,
Reaction of polyfunctional isocyanate such as aliphatic polyisocyanate such as xylylene diisocyanate with hydroxyl group-containing compound such as polyether type polyol, polyester type polyol and polyacrylate polyol The two-component polyurethane resin obtained by the above can be used.

In the dry lamination method, the adhesive composition containing these as main components is dissolved or dispersed in an organic solvent, and this is subjected to, for example, roll coating, reverse roll coating, gravure coating, gravure coating. It is applied by a coating method such as reversing coating, gravure offset coating, kiss coating, wire bar coating, comma coating, knife coating, dip coating, flow coating, spray coating, etc., and is dried with a solvent etc. An adhesive layer for application can be formed. Preferred are roll coating and reverse roll coating methods.

The thickness of the adhesive layer is 0.1 to 20 μm.
m (dry state), preferably 1.0 to 5.0 μm. Immediately after forming the adhesive layer, the laminated base materials are laminated and then aged at 30 to 120 ° C. for several hours to several days to cure the adhesive, thereby adhering. When a non-absorptive material such as an organic polymer sheet or a film is used as the material for the bonding base material, an adhesive is applied to the bonding base material side and the base film 11 surface is laminated. You may make it adhere.

The non-solvent lamination method is basically the same as the dry lamination method, but the adhesive composition is used as it is without dissolving or dispersing the adhesive composition in an organic solvent. In order to reduce the viscosity, the adhesive composition may be heated and heated before use.

As described above, after laminating and laminating all the surfaces of the same continuously using the laminator, 30 to 12
After the adhesive is cured by aging at 0 ° C. for several hours to several days, only the transfer base material is peeled off, whereby the transfer layer is transferred to the card base material. By using an existing laminator, the adhesive layer can be simultaneously formed and transferred (laminated) in a continuous operation, and the transfer operation can be performed efficiently and inexpensively. Further, the feeding positions of the transfer foil 1 and the card body 3 may be reversed, and either side may be coated with the dry laminating adhesive. Further, the card body 3 may not be in the form of a long continuous web, but may be in a large-sized sheet state in which a plurality of cards are faced and cut. The large-sized sheets may be continuously or intermittently delivered in a string of beads.

(Effect of Whole Surface Transfer) As described above, mass production can be performed efficiently and inexpensively in continuous operation. That is, as objects, white cards (also called raw cards) having various kinds of bills are collected in advance and mass-produced. The number of completed cards for each completed card is limited due to usage, company, and various kinds of pictures. Therefore, it is possible to use it by printing the card name, user information, etc. on the face of each card using a part of a series of mass-produced web-shaped or large-sized sheet-shaped material (plurality of white cards). Use as a card. Compared with the conventional method of providing the light diffraction layer for each individual card, it is very efficient in terms of the whole manufacturing.

(Card body) Card body 3 for transferring the entire surface
As shown in FIG. 3B, includes a card base material 21 and a magnetic recording layer 23, but the magnetic recording layer 23 may be omitted. (Card base material) The card base material 21 is the same as the base material used for the conventional card, and has mechanical strength, chemical resistance, solvent resistance, heat resistance for manufacturing, etc. If so, various materials can be applied depending on the application. For example, papers such as high-quality paper, OCR paper, carbonless paper, art paper, and the like, and base films such as vinyl chloride resin, polyethylene terephthalate (abbreviated as PET) and the like can be applied. Plate-shaped objects may be films, sheets, or
Although variously called a board and the like, they are the same in this specification. Examples of the material for the base film include polyethylene terephthalate / polybutylene terephthalate / polyethylene naphthalate / polyethylene terephthalate / isophthalate copolymer / terephthalic acid / cyclohexanedimethanol / ethylene glycol copolymer. Coalescing
Polyester resin such as polyethylene terephthalate / polyethylene naphthalate co-extrusion film, polyamide resin such as nylon 6, nylon 66 and nylon 610, polyolefin resin such as polyethylene, polypropylene and polymethylpentene, vinyl resin such as polyvinyl chloride Resin, acrylic resin such as polyacrylate / polymethacrylate / polymethylmethacrylate, imide resin such as polyimide / polyamideimide / polyetherimide, polyarylate / polysulfone / polyethersulfone / polyphenylene ether / polyphenylene sulfide Engineering of (PPS), polyaramid, polyetherketone, polyethernitrile, polyetheretherketone, polyethersulfite, etc. Grayed resins, polycarbonate - Bonnet - DOO, styrene resins, cellulose film such as cellophane, cellulose triacetate, cellulose diacetate, nitrocellulose, such as polystyrene, high impact polystyrene AS resin, ABS resin, and the like.

The base film is a copolymer resin containing these resins as a main component, or a mixture (including alloy),
Alternatively, it may be a laminated body composed of a plurality of layers. Also,
The base film may be a stretched film or an unstretched film, but a film stretched in a uniaxial direction or a biaxial direction is preferable for the purpose of improving strength. Usually, polyester-based films such as polyethylene terephthalate and polyethylene naphthalate, vinyl-based films such as polyvinyl chloride, and the like are preferably used in terms of mechanical strength and cost, and polyethylene terephthalate is most suitable.

Prior to coating, the base film is subjected to corona discharge treatment, plasma treatment, ozone treatment, flame treatment, primer (anchor coat, adhesion promoter,
Easy adhesion treatment such as coating treatment (also referred to as easy adhesion agent), preheat treatment, dust removal treatment, vapor deposition treatment, alkali treatment, and the like may be performed. Further, the resin film may be added with additives such as a filler, a plasticizer, a colorant, and an antistatic agent, if necessary. As the filler, extender pigments such as silica and calcium carbonate can be applied. As the colorant, disperse dyes are preferable, and disperse dyes such as monoazo, bisazo, anthraquinone, nitro, styryl, methine, allylene, benzimidazole, aminonaphthylamide, naphthoquinone imide and coumarin derivative can be applied. Usually, a white base material coated with a pigment such as titanium oxide is used.
As the antistatic agent, nonionic surfactants, anionic surfactants, cationic surfactants, polyamides, acrylic acid derivatives and the like can be applied.

The card substrate 21 may have any thickness as long as the rigidity of the whole is appropriately maintained, and is usually 50 to 1000.
Although about 100 μm can be applied, 100 to 800 μm is preferable, and 150 to 300 μm is optimal. For example, PET
In the case of, it is about 190 to 260 μm. If it is thicker than this, it is too rigid and inconvenient to carry, and it is heavy and costly. The durability is poor. Regarding the size, there is no particular limitation, but at least until the step of transferring the transfer foil, a large-sized sheet capable of imposing multiple times the card size,
Or, use a long continuous roll. The size after transfer may be appropriately cut and used, if necessary.
Finally, it may be punched or cut into a card size.

(Magnetic Recording Layer) The magnetic recording layer 23 is brought into contact with a magnetic head to read a recorded signal, as shown in, for example, an automatic ticket gate of a commuter pass, and whether the certificate is authentic or not. Alternatively, it is for judging that the use is justified, and is a thin film formed by dispersing a magnetic oxide in a binder, or by vapor deposition or sputtering of a magnetic metal. In the case of visual confirmation that is not an automatic ticket gate, the magnetic layer may be omitted.

The magnetic recording layer 23 is composed of γ-Fe ₂ O ₃ and Fe _{3
O 4, CrO 2, Fe,} Fe-Cr, Fe-Co, Co-
This is a composition in which conventionally known magnetic fine particles such as Cr, Co—Ni, MnAl, Ba ferrite, and Sr ferrite are dispersed in a binder. Using the composition ink in which the composition is dispersed or dissolved in a solvent or the like, the composition ink is applied onto the card base material 21 by a known coating method and dried, and if necessary, at a temperature of 30 It may be formed by appropriately aging at 70 ° C. to 70 ° C. or by irradiating ionizing radiation (ultraviolet ray, electron beam, etc.). As the coating method, for example, roll coating, reverse roll coating,
Transfer roll coat, gravure coat, gravure reverse coat, kiss coat, comma coat, rod coat, blade coat, bar coat, wire bar coat, knife coat, squeeze coat, air doctor coat, air knife coat, die coat, lip coat, curtain coat , Flow coat, etc. can be applied.
When the magnetic recording layer 23 is formed by the coating method, the thickness thereof is 1 to 100 μm, preferably 5 to 20 μm.

Furthermore, the magnetic recording layer 23 is made of Fe, F
A metal or alloy such as e-Cr, Fe-Co, Co-Cr, and Co-Ni may be formed on the card base material 21 by a method such as a vacuum deposition method, a sputtering method, an ion plating method, and a plating method. it can. When formed on the substrate by these methods, the thickness of the magnetic recording layer 23 is 10
0 angstrom to 1 μm, preferably 500 to 20
It is about 00 angstrom.

As the binder material in which magnetic fine particles such as γ-Fe ₂ O ₃ are dispersed, butyral resin, vinyl chloride / vinyl acetate copolymer resin, urethane resin, polyester resin, cellulose resin, acrylic resin A styrene / maleic acid copolymer resin or the like is used, and a rubber-based resin such as nitrile rubber or a urethane elastomer can be added if necessary. Also,
If necessary, a surfactant, a silane coupling agent, a plasticizer, a wax, a silicone oil, carbon and other additives can be used.

Next, regarding the adhesiveness of the offset printing layer 35 provided on the light diffraction layer 15, which is the third obstacle, if necessary, the UV anchor layer 33 may be provided via the primer layer 31.
By providing a strong adhesion. The primer layer 31,
The material of the UV anchor layer 33 and the printing method will be described. (Peeling layer) A desired printing layer such as user information and a pattern by offset printing is formed on the surface of the peeling layer 13 shown in FIG. 3C, and the peeling layer 13 is a release agent or a release agent. The printed layer does not adhere firmly because it contains Therefore, if necessary, through the primer layer 31, UV
It has been found that the anchor layer 33 provides strong adhesion. The primer layer 31 does not have to be used under normal use conditions, but when used on a card used under harsh conditions, the primer layer 31 adheres more firmly and is less likely to be scratched or fallen off, resulting in improved card durability. .

(UV Anchor Layer) As the UV anchor layer 33, a binder precursor that cures (reacts) with ultraviolet rays (UV) can be applied. The binder precursor comprises an ultraviolet curable resin, a photopolymerization initiator and / or a photopolymerization accelerator. An electron beam having high energy may be used instead of ultraviolet rays. In the case of electron beam curing, it is not necessary to add a photopolymerization initiator and / or a photopolymerization accelerator. As the ultraviolet curable resin, the photopolymerization initiator, the photopolymerization accelerator, and various additives, those similar to the above-mentioned light diffraction layer 15 can be applied.

(Effect of anchor layer) This binder precursor is appropriately dissolved or dispersed in a solvent to form an ink, which is printed on the entire surface of the release layer 13 by a known printing method such as offset printing, and is irradiated with ultraviolet rays. And cured to form the UV anchor layer 33. At this time, the amount of ultraviolet rays irradiated is controlled so that the binder precursor is not completely cured (reacted) and a part thereof is left. Those skilled in the art will leave it in a semi-cured (also called half cure) state. This is because if the binder precursor is completely cured, the adhesive force of the offset printing layer provided on the UV anchor layer 33 may deteriorate. However, if there is a large amount of uncured component, the tackiness remains on the surface of the UV anchor layer 33, so
The amount of UV irradiation that eliminates tackiness. The thickness of the UV anchor layer 33 is about 0.05 to 10 μm, preferably 0.1 to 5 μm.

(Primer layer) Further, the UV anchor layer 3
A primer layer 31 is provided on the surface of the peeling layer 13 as needed in order to firmly bond the same with the primer layer 31. The primer layer 31
As, for example, polyurethane, polyester, polyvinyl chloride resin, polyvinyl acetate resin, vinyl chloride-vinyl acetate copolymer, acrylic resin, polyvinyl alcohol resin, polyvinyl acetal resin, ethylene and vinyl acetate or acrylic acid, etc. A copolymer with, an epoxy resin or the like can be applied.

These resins are appropriately dissolved or dispersed in a solvent to prepare a coating solution, which is applied to the surface of the release layer 13 by a known coating method and dried to form a primer layer 31. In addition, a resin may be appropriately combined with a monomer, an oligomer, a prepolymer, etc., a reaction initiator, a curing agent, a cross-linking agent or the like, or a main agent and a curing agent may be combined, coated and dried, and then dried or dried. It may be formed by reacting by aging treatment of. The primer layer 1
3 has a thickness of about 0.05 to 10 μm, preferably 0.
It is 1 to 5 μm. Until the formation of the primer layer 13,
It is preferable to process it in a web shape, but it may be in a large format so that a plurality of cards can be placed.

(Offset printing) By providing the offset printing layer 35 on the semi-cured UV anchor layer 33 and further irradiating with ultraviolet rays and / or heating, a good adhesive force can be obtained. As the offset printing layer 35, known yellow,
Offset printing may be performed by appropriately using red, indigo, black ink reference colors, and other colored offset inks. Further, the printed image (pattern) is associated with the image (pattern) of the light diffraction layer 15 and the image (pattern) of the high-brightness ink reflection layer 18 in terms of design and graphic design, and each image is synchronized. It is preferable to improve the security as well as the design.

(Effect of Image) The print image (picture), the light diffraction image (picture), and the high-brightness ink image (picture) are independent and / or mixed in terms of graphic design, and the design is enhanced. Moreover, it is extremely difficult to try forgery.
Furthermore, it cannot be reproduced even if copied with a color copier.

(OP layer) On the surface of the offset printing layer 35,
The OP layer 37 may be provided if necessary. The offset printing layer 35 and the light diffraction layer 15 are protected, as well as protected from friction and external force during use, to enhance the durability of the card. The O
As the P layer 37, the same material as the protective layer 29 described later,
And the forming method can be applied.

(Other Layers) Various information and patterns may be printed on the surface of the magnetic recording layer 23 of the card substrate 21. On the surface of the magnetic recording layer 23 of the card base material 21,
A description printing layer 2 via the primer layer 25, if necessary.
7, a protective layer 29 may be provided. As the primer layer 25, in order to improve the adhesiveness with the magnetic recording layer 23, for example, polyurethane, polyester, polyvinyl chloride resin, polyvinyl acetate resin, vinyl chloride-vinyl acetate copolymer, acrylic resin, A polyvinyl alcohol resin, a polyvinyl acetal resin, a copolymer of ethylene and vinyl acetate or acrylic acid, an epoxy resin and the like can be applied.

These resins are appropriately dissolved or dispersed in a solvent to prepare a coating solution, which is coated by a known coating method and dried to form a primer layer 25. In addition, the monomer in the resin,
An oligomer, a prepolymer, etc. may be appropriately combined with a reaction initiator, a curing agent, a cross-linking agent, or the like, or a combination of a main agent and a curing agent may be applied, dried, and then reacted by aging treatment after drying or drying. May be formed. The thickness of the primer layer 25 is 0.05
The thickness is about 10 to 10 μm, preferably 0.1 to 5 μm.

(Explanatory text printing layer) The explanatory text printing layer 27 is a known printing method such as gravure printing, screen printing, offset printing, etc., and various usage methods, usage precautions, warnings, issuing company names, etc. Information is printed.

(Protective Layer) As the protective layer 29, various kinds of thermoplastic resins, thermosetting resins, or reactive resins are used alone or in a mixture thereof. Examples of the thermoplastic resin include vinyl chloride vinyl acetate copolymer, vinyl chloride copolymer, vinyl chloride vinyl acetate vinyl alcohol copolymer, vinyl chloride vinyl alcohol copolymer, vinyl chloride vinylidene chloride copolymer, vinyl chloride. Acrylonitrile copolymer, acrylic ester acrylonitrile copolymer, acrylic ester vinylidene chloride copolymer,
Acrylic ester styrene copolymer, methacrylic acid ester acrylonitrile copolymer, methacrylic acid ester vinylidene chloride copolymer, methacrylic acid ester styrene copolymer, urethane elastomer, nylon-silicone resin, nitrocellulose-polyamide resin, polyfucca Vinyl, vinylidene chloride acrylonitrile copolymer, butadiene acrylonitrile copolymer, polyamide resin, polyvinyl butyral, cellulose derivative (cellulose acetate butyrate, cellulose diacetate, cellulose triacetate, cellulose propionate, nitrocellulose, ethyl cellulose, methyl cellulose, propyl cellulose) , Methyl ethyl cellulose, carboxymethyl cellulose, acetyl cellulose, etc.), styrene Diene copolymers, polyester resins, polycarbonate resins, chlorovinyl ether-acrylic ester copolymer, an amino resin, and polyamide resin may be applied.

As the thermosetting resin or the reactive resin,
The coating liquid has a molecular weight of 200,000 or less,
It is preferred that the molecular weight becomes infinite due to reactions such as condensation and addition by heating and humidifying after coating and drying.
Further, among these resins, those which are not softened or melted before the resin is thermally decomposed are preferable. Specifically, for example, phenol resin, phenoxy resin, epoxy resin, polyurethane resin, polyester resin, polyurethane polycarbonate resin, urea resin, melamine resin, alkyd resin, silicone resin, acrylic reaction resin (electron beam curing resin), epoxy-polyamide Resin, nitrocellulose melamine resin, mixture of high molecular weight polyester resin and isocyanate prepolymer, mixture of methacrylate copolymer and diisocyanate prepolymer, mixture of polyester polyol and polyisocyanate,
Urea-formaldehyde resin, a mixture of low molecular weight glycol / high molecular weight diol / triphenylmethane triisocyanate, polyamine resin, polyimine resin, and mixtures thereof.

These resins are appropriately dissolved or dispersed in a solvent to prepare a coating solution, which is coated by a known coating method and dried to form a protective layer 29. In addition, a resin may be appropriately combined with a monomer, an oligomer, a prepolymer, etc., a reaction initiator, a curing agent, a cross-linking agent or the like, or a main agent and a curing agent may be combined, coated and dried, and then dried or dried. It may be formed by reacting by aging treatment of. The protective layer 29 has a thickness of about 0.5 to 30 μm,
It is preferably 1 to 10 μm.

[0096]

EXAMPLES Example 1 An example will be described in the order of manufacturing steps. (A) A transfer substrate, a release layer, a light diffraction layer, a transparent reflective layer, a high-intensity ink reflective layer, and an adhesive layer are sequentially laminated, and the high-intensity ink reflective layer is at least an organic fatty acid, methylsilyl isocyanate, or A step of preparing a transfer foil containing a metal vapor deposition film strip surface-treated with a cellulose derivative and partially provided by a printing method. First, as a transfer base material 11, a 25 μm-thick Lumirror T60 (Toray Co., Ltd.) is used. A polyester film (trade name) manufactured by the company was used. On one side of this, a release varnish 45-3 (trade name of acrylic resin release ink, manufactured by Showa Ink Co., Ltd.) was diluted with a solvent so that the solid content was 10% by mass, and after drying by a roll coating method. The peeling layer 13 was formed by applying the coating so that the thickness was 1 μm and drying. Iupimer LZ06 was applied to the release layer 13 surface.
5 (ultraviolet curing resin, trade name resin, manufactured by Mitsubishi Chemical Co., Ltd.) was diluted with a solvent to a solid content of 25% by mass, and coated by a reverse roll coating method so that the thickness after drying was 3 μm and dried. Then, the light diffraction layer 15 was formed. A stamper is pressed (embossed) on the surface of the light diffraction layer 15 to form a relief. A stamper duplicated by the 2P method is attached to the empos roller of the duplication device from a master hologram separately made by using laser light, and heat pressing (embossing) is performed between the opposing rollers at 150 ° C. to obtain fine unevenness. A relief consisting of a pattern was formed. Immediately after shaping, ultraviolet rays having a wavelength of 200 to 400 nm were irradiated with a high-pressure mercury lamp to cure. Zinc sulfide was vapor-deposited on the surface of the light diffraction layer 15 by a vacuum vapor deposition method to a thickness of 600 nm to form a transparent reflective layer 17. CVL hardener (manufactured by Dainippon Ink and Chemicals, Inc., curing agent) on 100 parts by weight of Fine Wrap Super Metallic Silver Ink (manufactured by Dainippon Ink and Chemicals, Inc.) on the reflective layer 17 surface. Was added by a known gravure printing method so that the thickness after drying was 1 μm, and dried to form a high-brightness ink reflection layer 18 having a desired pattern. The surface of the high-brightness ink reflective layer 18 was diluted with a solvent such that a vinyl chloride / vinyl acetate copolymer was 25% by mass and microsilica 25% by mass, and the thickness after drying was 2 μm by a gravure printing method. As described above, the entire surface was coated and dried to form the adhesive layer 19 to obtain the transfer foil 1. The transfer foil 1 is a long winding body.

(Preparation of Card Body 3) On a treated surface of a white polyethylene terephthalate E20 (manufactured by Toray Industries, Inc., single-sided easy adhesion treatment) having a thickness of 188 μm, a composition ink having the following composition was dried by a gravure reverse coating method. Thickness is 10
The magnetic recording layer 23 was formed by coating and drying so as to have a thickness of μm, followed by aging at 80 ° C. for 3 days to form a card body 3. The card body 3 is also a long winding body.・ Composition ink ・ Barium ferrite (magnetic material) 36 parts by mass ・ Urethane resin 12 parts by mass ・ Carbon 2 parts by mass ・ Toluene 20 parts by mass ・ Methyl ethyl ketone 15 parts by mass ・ Methyl isobutyl ketone 15 parts by mass ・ Isocyanate curing agent 2 parts by mass

(B) The transfer foil of a card substrate in a large-sized state or a long web state on which a plurality of cards are faced,
Step of transferring the entire surface to at least one surface and peeling only the transfer base material. The card body 3 in the long web state is fed out from the supply unit 43 shown in FIG. 4, and the transfer foil 1 is supplied to the supply unit 4.
1, the PET surface of the card body 3 and the adhesive layer 19 surface of the transfer foil 1 are pressure bonded between a heating roll 45 and a receiving roll 47 heated at 150 ° C.
Only the exfoliation was removed. On the surface of the magnetic recording layer 23 of the card body 3, precautionary notes were printed with a known white gravure ink by a gravure printing method to form an explanatory text printing layer 27. On the surface of the explanatory text printing layer 27, a colorless explanatory text printing layer 27 ink from which a white colorant was removed was printed on the entire surface by a gravure printing method to form a protective layer 29.

(C) A step of forming a semi-cured UV anchor layer on the release layer exposed by peeling off the transfer base material through the primer layer, and then the transfer base material 11 is released and exposed. A composition ink having the following composition was applied onto the surface of the release layer 13 by a roll coating method so that the thickness after drying was 1 μm, and dried to form a primer layer 31.・ Primer composition ・ Byron 300 (manufactured by Toyobo Co., Ltd., trade name of polyester) 30 parts by mass ・ VMCH (UCC Co., trade name of vinyl chloride vinyl acetate copolymer) 30 parts by mass ・ 20 parts by mass of MEK ・ 20 parts by mass of toluene and The web-shaped body was cut into sheets to obtain a large-sized sheet in which a total of 30 sheets (sheets) of 5 rows and 6 columns can be collected. On the surface of the primer layer 31 of the large-sized sheet, Uupimer U-
3002 (trade name of UV curable resin, manufactured by Mitsubishi Chemical Co., Ltd.) is applied by a roll coating method to a thickness of 2 μm, and is semi-cured by irradiating a 365 nm bright line of an ultra-high pressure mercury lamp at 75 mJ / cm ^2. , UV anchor layer 33 was formed.

(D) a step of forming a printing layer by an offset printing method on the semi-cured UV anchor layer 33, and simultaneously curing the UV anchor layer and the offset printing layer; UV in yellow, red, indigo, and black
After printing the company name and design by the offset printing method using Calton ink (The UV Tech Inc. product name, UV offset ink product name), and at the same time using the ink of the following composition, printing High pressure mercury lamp 365n
The offset printing layer 35 and the OP layer 37 were formed by irradiating the m bright line with 150 mJ / cm ² and curing. UV anchor layer 3
3 was also cured and firmly adhered to the offset printing layer 35.・ Ink composition ・ UV carton medium (manufactured by The Inktech Co., Ltd., UV offset ink product name) 90 parts by mass ・ WAX 5 parts by mass ・ Reducer 5 parts by mass

(E) Step of punching into a card size to form a card Next, a large-sized sheet was punched into a card size to obtain a card having the light diffraction layer of Example 1. The card had a good design because a printed image (design), a light diffraction image (design), and a high-brightness ink image (design) were mixed in a graphic design. Moreover, it is extremely difficult to try forgery. Further, the image was copied with a color copier, but the high-brightness ink image portion became black, and the light diffraction image (pattern) portion was blurred, and the card image could not be reproduced.
Therefore, the copied product could be easily judged visually as a counterfeit product.

(Example 2) (a) A transfer substrate, a peeling layer, a light diffraction layer, a transparent reflection layer, and a high-intensity ink reflection layer are sequentially laminated, and the high-intensity ink reflection layer contains at least organic fatty acid and methyl. A step of producing a transfer foil containing a metal vapor deposition film strip surface-treated with silyl isocyanate or a cellulose derivative and partially provided by a printing method. First, as the transfer substrate 11, a film having a thickness of 12 μm is used. Lumirror F
A type (manufactured by Toray, trade name of polyester film) was used. On one side of this, a release varnish 45-3 (trade name of an acrylic resin release ink manufactured by Showa Ink Co., Ltd.) was added to give a solid content of 1
The release layer 13 was formed by diluting with a solvent so as to be 0% by mass, and applying by a roll coating method so that the thickness after drying was 1 μm and drying. To the release layer 13 surface, S
UZ-600 (manufactured by The Inktech Co., Ltd., UV curable resin, trade name resin) is diluted with a solvent so that the solid content becomes 25% by mass, and the thickness after drying is 3 μm by the reverse roll coating method. On the optical diffraction layer 15
Was formed. A stamper is pressed (embossed) on the surface of the light diffraction layer 15 to form a relief. Diffraction gratings with different diffraction directions of 50 μm square, which are separately produced by electron beam drawing method, are arranged randomly and adjacent to each other with no space between them. The stamper duplicated by the method was attached to an empos roller of a duplication device, and heated and pressed (embossed) between the rollers facing each other at 150 ° C. to form a relief having a fine concavo-convex pattern. Immediately after shaping, a high-pressure mercury lamp gives a wavelength of 2
It was cured by irradiating with an ultraviolet ray of 00 to 400 nm. Zinc sulfide was vapor-deposited on the surface of the light diffraction layer 15 by a vacuum vapor deposition method to a thickness of 600 nm to form a transparent reflective layer 17. CVL hardener (manufactured by Dainippon Ink and Chemicals, Inc., curing agent) on 100 parts by weight of Fine Wrap Super Metallic Silver Ink (manufactured by Dainippon Ink and Chemicals, Inc.) on the reflective layer 17 surface. 5 parts by mass and 0.5 parts by mass of a transparent yellow dye are applied by a known gravure printing method so that the thickness after drying is 1 μm, and dried to give a colored composition having a desired pattern. The brightness ink reflection layer 18 was formed to obtain a transfer foil 1. The transfer foil 1 is a long winding body. The adhesive layer 19 is not provided.

(Preparation of Card Body 3) On a treated surface of a white polyethylene terephthalate E20 (manufactured by Toray Co., Ltd., single-sided easy adhesion treatment) having a thickness of 188 μm, a composition ink of the following composition was dried by a gravure reverse coating method and then dried. Thickness is 10
The magnetic recording layer 23 was formed by coating and drying so as to have a thickness of μm, followed by aging at 80 ° C. for 3 days to form a card body 3. The card body 3 is also a long winding body.・ Composition ink ・ Barium ferrite (magnetic material) 36 parts by mass ・ Urethane resin 12 parts by mass ・ Carbon 2 parts by mass ・ Toluene 20 parts by mass ・ Methyl ethyl ketone 15 parts by mass ・ Methyl isobutyl ketone 15 parts by mass ・ Isocyanate curing agent 2 parts by mass

(B) The transfer foil of a card substrate in a large-sized state or a long web state on which a plurality of cards are faced,
A step of transferring the entire surface to at least one surface and peeling only the transfer base material, and laminate transfer using the laminator shown in FIG. As shown in FIG. 6, the above long web-shaped card body 3 is fed out, and the following adhesive composition for dry lamination is dried to a PET surface of the card body 3 so that the thickness after drying becomes 3 μm. It was applied by a roll coating method and dried, and the surface of the high-brightness ink reflection layer 18 of the transfer foil 1 was pressure-bonded between the heating roll heated at 100 ° C. and the receiving roll in the laminating section and wound up. After the roll was aged at 80 ° C. for 3 days, only the transfer substrate 11 was peeled and removed by a known rewinder. -Adhesive composition for dry laminating-Takelac A-310 (manufactured by Takeda Pharmaceutical Company, Ltd., adhesive brand name) 100 parts by mass-A-10 (Takeda Pharmaceutical Company, curing agent brand name) 5 parts by mass-Methyl ethyl ketone / toluene Equal amount of mixed solvent 30 parts by mass On the surface of the magnetic recording layer 23 of the card main body 3, precautionary notes for use were printed by a known white gravure ink by a gravure printing method to form an explanatory note printing layer 27. The description printing layer 27
A colorless descriptive printing layer 27 from which the white colorant has been removed
The entire surface was printed with ink by a gravure printing method to form a protective layer 29.

(C) A step of forming a semi-cured UV anchor layer on the peeling layer exposed by peeling off the transfer substrate, and then exposing the transfer substrate 11 through the primer layer. A composition ink having the following composition was applied to the surface of the release layer 13 by a roll coating method so that the thickness after drying was 1 μm, and dried to form a primer layer 31.・ Primer composition ・ Byron 300 (manufactured by Toyobo Co., Ltd., trade name of polyester) 30 parts by mass ・ VMCH (UCC Co., trade name of vinyl chloride vinyl acetate copolymer) 30 parts by mass ・ 20 parts by mass of MEK ・ 20 parts by mass of toluene and The web-shaped body was cut into sheets to obtain a large-sized sheet in which a total of 30 sheets (sheets) of 5 rows and 6 columns can be collected. On the surface of the primer layer 31 of the large-sized sheet, 20 parts by mass of urethane acrylate, Irgacure 184 (trade name of photopolymerization initiator, manufactured by Ciba Specialty Chemicals) 0.5
A composition ink consisting of 79.5 parts by weight of a mixed solvent of toluene and MEK in an amount of 79.5 parts by weight is applied by a roll coating method to a thickness of 1 μm.
nm emission line is irradiated at 75 mJ / cm ² to semi-cure it, and U
The V anchor layer 33 was formed.

(D) The steps of forming a printing layer on the semi-cured UV anchor layer 33 by the offset printing method and simultaneously curing the UV anchor layer and the offset printing layer were the same as in Example 1. .

The step (e) of punching into a card size to obtain a card was the same as in Example 1. Then, the large-sized sheet was punched into a card size to obtain a card having the light diffraction layer of Example 2. The card has a printed image (picture), a colored light diffraction image (picture), and a high-intensity ink image (picture),
It was mixed in terms of graphic design, and the design was good. Moreover, it is extremely difficult to try forgery. Further, the image was copied with a color copier, but the high-brightness ink image portion became black, and the light diffraction image (pattern) portion was blurred, and the card image could not be reproduced. Therefore, the copied product could be easily judged visually as a counterfeit product.

[0108]

The card having the optical diffraction layer of the present invention, which solves the three major obstacles of providing the diffraction layer on the card, can be manufactured at low cost and has high designability and security.
A manufacturing method in which a reflection layer having a metallic luster having a partial pattern (pattern) that enhances the effect of the light diffraction layer 15 can be provided by an existing printing method, and the light diffraction layer 15 is continuously transferred to a card substrate. The method allows mass production at low cost. . Further, since the printing provided on the light diffraction layer is provided by a known and existing offset printing, it is very efficient in view of the whole manufacturing capable of printing a finished card having a limited number of sheets.

[Brief description of drawings]

FIG. 1 is a sectional view of a card showing an embodiment of the present invention.

FIG. 2 is a sectional view of a card showing another embodiment of the present invention.

FIG. 3 is an explanatory diagram illustrating a method of transferring a transfer layer of a transfer foil to a card body.

FIG. 4 is a schematic sectional view illustrating a conventional transfer method.

FIG. 5 is a schematic cross-sectional view illustrating a transfer method of the present invention.

FIG. 6 is a schematic cross-sectional view illustrating another transfer method of the present invention.

[Explanation of symbols]

1 Transfer foil 3 card body 11 Transfer substrate 13 Release layer 15 Optical diffraction layer 17 Transparent reflective layer 18 High-brightness ink reflective layer 19 Adhesive layer 21 card base material 23 magnetic recording layer 25 primer layer 27 Explanatory text printing layer 29 Protective layer 31 Primer layer 33 UV anchor layer 35 Offset printing layer 37 OP layer 41, 43 supply unit 45 heating roll 47 receiver roll 49 winding section 51 isolation department 53 Transferred base material 55 Transfer layer

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G02B 5/18 G02B 5/18 5B035 G03H 1/18 G03H 1/18 G06K 19/06 G06K 19/00 DF term (reference) 2C005 HA06 HA17 HA19 JA19 JB09 KA48 2H049 AA25 AA31 AA64 2H113 AA06 BA05 CA39 CA46 2K008 AA00 AA13 FF11 GG05 HH18 4F100 AB01E AH02E AH03E AJ06E AK07 AK15 AK17 AK42 AK49 AK52 AR00B AR00C AR00D AR00E AT00A BA05 BA07 CB00E DE01E EC04A EH66E GB71 JL14B JN01D JN06D JN06E JN30C 5B035 AA04 AA13 BA03 BA05 BB03 BB05

Claims (4)

[Claims] 1. A transfer substrate, a release layer, a light diffracting layer, a transparent reflection layer, a high-brightness ink reflection layer, and an adhesive layer, if necessary, are sequentially laminated, and the high-brightness ink reflection layer is formed. A step of preparing a transfer foil containing at least a metal vapor deposition film strip surface-treated with an organic fatty acid, methylsilyl isocyanate, or a cellulose derivative, and partially provided by a printing method, (b) A step of completely transferring at least one surface of a card substrate in a large-sized state or a long web state on which a plurality of cards are faced, and peeling only the transfer substrate, (c) the transfer substrate is peeled A step of forming a semi-cured UV anchor layer on the exposed release layer via a primer layer, (d) forming a printing layer on the semi-cured UV anchor layer by an offset printing method, The U
A step of simultaneously curing the V anchor layer and the offset printing layer, (e) a step of punching into a card size to obtain a card,
A method for manufacturing a card having a light diffraction layer, which comprises: 2. The transfer foil comprises a transfer substrate, a peeling layer, a light diffracting layer, a transparent reflection layer, and a high-brightness ink reflection layer, which are sequentially laminated, and the entire surface transfer method is a laminate transfer method. A method for manufacturing a card having the light diffraction layer according to claim 1. 3. A transfer substrate, a release layer, a light diffracting layer, a transparent reflection layer, a high-brightness ink reflection layer, and an adhesive layer, if necessary, are sequentially laminated, and the high-brightness ink reflection layer is formed. A step of producing a transfer foil containing at least a metal vapor deposition film strip surface-treated with an organic fatty acid, methylsilyl isocyanate, or a cellulose derivative, and partially provided by a printing method, (b) A step of transferring the entire surface of at least one surface of a card substrate in a large-sized state or a long web state with a plurality of cards attached thereto and peeling only the transfer substrate, (c) peeling the transfer substrate A step of forming a semi-cured UV anchor layer on the exposed release layer via a primer layer, (d) forming a print layer on the semi-cured UV anchor layer by an offset printing method, The U
A step of curing the V anchor layer and the offset printing layer,
(E) A card having an optical diffraction layer, which is manufactured by the step of punching into a card size to obtain a card. 4. The card having a light-diffractive layer according to claim 3, wherein the high-brightness ink reflection layer is provided in synchronization with a diffraction image and / or a printed pattern of the light-diffraction layer. .