JPH08282162A - Card and transfer sheet with antibacterial property used to manufacture the card - Google Patents

Abstract

PURPOSE: To provide a card in which the entire card has antibacterial function and a transfer sheet having antibacterial properties used to manufacture the card by giving the function to a protective layer covering an image such as a face formed on the card as an identifying function. CONSTITUTION: Cards 1 to 4 have a protective layer having antibacterial property on the area including an image 12, and a card body 20 having antibacterial property, and can protect the image formed after the card is manufactured as the identifying function by visual observation and gives the antibacterial function in the entire cards 1 to 4. A transfer sheet has the image which can be visually observed on an image receiving layer and a releasable protective layer having antibacterial properties, can be integrally formed at the body with the protective layer after the image is formed to protect the image 12, and to give the antibacterial function to the entire card. The image 12 is formed to prevent the illegal deed due to the collation, and further the preventive property for the forgery by a hologram and the decorative property is improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card used for an ID card, a credit card, etc. on which an image is formed on a base material, and a transfer sheet having antibacterial property used for manufacturing the card, and particularly, an antibacterial function is added. The present invention relates to a card having a protective layer and an antibacterial transfer sheet used for manufacturing the card.

[0002]

2. Description of the Related Art In recent years, there is an increasing tendency to incorporate a face photograph of the owner of a card or a portable medium as image information. Credit cards, cash cards, members' cards, ID cards, medical examination cards, etc. are generally used as cards, and passports, passbooks, etc. are used as other portable media. Such cards and portable media can
The accuracy of collation is remarkably improved, and it has a certain effect in preventing fraudulent activity such as giving psychological restraint to fraudulent users.

A method for forming such an image on a medium such as a card is disclosed in Japanese Patent Application Laid-Open No. 6-67592 and Japanese Patent Application No. 5-60408. No. 106743. Further, as disclosed in Japanese Patent Application Laid-Open No. 6-183184, as means for preventing forgery of these images,
A hologram or an ultraviolet fluorescent layer is added to the protective sheet arranged on the image so that the genuine sheet can be visually confirmed.

This type of card is, for example, a card base material composed of a single layer or a plurality of layers made of a synthetic resin such as polyvinyl chloride, a magnetic stripe provided at an arbitrary position of the card base material, and a card base material. It is known that the main part is composed of a coating layer or a coating layer such as a film-like sheet provided on the front surface side and the back surface side of each of the components, and each component has the above-mentioned various names according to its use. Has been done.

[0005]

By the way, since the antibacterial function of the conventional card of this kind is not particularly considered, the antibacterial function is added to various products in recent years in order to provide a clean environment. However, when it is used for medical examination cards etc. of hospitals that have begun to spread rapidly, it has problems such as causing infection through pathogenic bacteria etc. attached to the medical examination card, Although it is possible to avoid infection by periodically disinfecting the above-mentioned examination card at the hospital etc.,
There is a problem in that the processing for that is required and the handling of the card becomes complicated. With respect to the above problems, an antibacterial card is proposed as shown in Japanese Patent Application No. 7-31444 by the present applicant. By the way, cards and the like are widely used in various fields other than the above-mentioned medical examination cards, and in particular, an image on the surface of a conventional card having an identification function formed by forming the face of the holder of the card on the upper surface of the card. , And a card having a structure in which a protective layer is provided on the upper surface thereof has come to be used. Since the coating layer provided as this protective layer covers a part of the card on which the image is formed or the entire surface of the card, even if only the card base material has an antibacterial function, the other part does not have an antibacterial function, so the entire card is antibacterial. It wasn't until sex. That is, the antibacterial function needs to be antibacterial as a whole.

Therefore, the present invention has been made by paying attention to such problems, and as an identification function, an antibacterial function is imparted to a protective layer for covering an image of a face or the like formed on a card,
An object of the present invention is to provide a card capable of maintaining an antibacterial function as a whole and a transfer sheet having an antibacterial property used for manufacturing the card.

[0007]

The present invention has been made to solve the above problems, and the invention described in claim 1 is
In a card in which an image is formed on at least a part of a base material, a protective layer having an antibacterial property as an outermost layer on a region including an image, and the card main body having an antibacterial property, or the card main body Is a base material having an antibacterial part on the entire surface of the outermost surface side and the outermost surface side.

According to a second aspect of the present invention, in the card according to the first aspect, the protective layer having the antibacterial property contains an antibacterial agent powder, and the invention according to the third aspect includes the card according to the first aspect. In the card, the base material contains an antibacterial agent powder, and
The invention according to claim 3, in the card according to any one of claims 1 to 3, wherein the antibacterial portion having an antibacterial function is a coating layer in which an antibacterial agent powder is mixed on the outermost surface side or the outermost surface side of the card substrate. The invention according to claim 5 is the card according to any one of claims 1 to 3, wherein the antibacterial part having an antibacterial function is provided on the outermost surface side or the outermost surface side of the card substrate. The present invention according to claim 6 is a card according to any one of claims 1 to 3, wherein the antibacterial portion having an antibacterial function is a card base material. It is composed of a film-like sheet in which an antibacterial agent powder is kneaded on the outermost surface side or the outermost surface side. Further, the invention according to claim 7 is
The card according to any one of claims 1 to 6,
The antibacterial agent powder is composed of antibacterial zeolite, and the invention according to claim 8 is the invention according to claims 1 to 7.
The card according to any one of the items 1 to 3, wherein a hologram forming layer having a hologram image is provided below the protective layer, and a transparent thin film layer that is in contact with the hologram forming layer and has a larger refractive index than the hologram forming layer.

According to a ninth aspect of the present invention, there is provided a transfer sheet characterized in that a heat resistant base sheet, an antibacterial peelable protective layer, and an adhesive layer are sequentially laminated.

According to the tenth aspect of the invention, it is possible to form an image composed of a heat resistant base sheet, an antibacterial peelable protective layer, a sublimable transfer material and / or a hot melt transfer material, and It is a transfer sheet comprising an image receiving layer having thermal adhesion to a material to be transferred, which is sequentially laminated. The invention according to claim 11 is the transfer sheet according to claim 9 or 10, wherein a hologram forming layer having a hologram image between the antibacterial peelable protective layer and the image receiving layer and the hologram forming layer are in contact with the hologram forming layer. Further, a transparent thin film layer having a refractive index larger than that of the hologram forming layer is provided. The invention described in claim 12 is the same as claim 9
In the transfer sheet according to any one of 1 to 11, the antibacterial agent powder is composed of antibacterial zeolite.

[0011]

According to the card of the present invention, a protective layer having an antibacterial property is provided on a region including an image, and a card body having an antibacterial property is provided, and an image formed after the card is manufactured is protected by a visual identification function. At the same time, it becomes possible to impart an antibacterial function to the entire card, and it is possible to prevent fraudulent acts by collation by forming an image. Further, by providing the hologram layer, the forgery prevention property and the decorative property are improved.

Further, according to the transfer sheet used in the production of the card of the present invention, the image receiving layer is provided with a visible image and a peelable protective layer having antibacterial property, and can be integrally formed on the card body together with the protective layer after image formation. It becomes possible to protect images and the like and to impart an antibacterial function to the entire card. Further, by providing the hologram layer, the forgery prevention property and the decorative property are improved.

[0013]

1 is a plan view of a card having an antibacterial function, and FIG. 2 is a sectional view taken along line XX of the card of FIG. That is, the card 1 shown in FIG.
A card body 1 made of a white polyvinyl chloride resin or the like as the card body 20 and kneaded with antibacterial agent powder
An image 12 that is a function of identifying a cardholder such as a face
The adhesive layer 13 and the protective layer 14 having antibacterial properties are laminated. The card 2 shown in FIG. 3 is made of a white polyvinyl chloride resin or the like as the card body 20, and has an antibacterial card base 1 by kneading an antibacterial agent powder.
1, an image receiving layer 15 on which an image 12 for identifying a cardholder such as a face is formed, and a protective layer 14 having an antibacterial property by kneading an antibacterial agent powder. Further, the cards 3 and 4 shown in FIGS. 4 and 5 are holograms in which the transparent thin film layer 16 and the hologram image H are formed between the protective layer 14 and the image 12 of the cards 1 and 2 shown in FIGS. 2 and 3, respectively. Each of the forming layers 17 is laminated, and the image 12 can be viewed from the outside through the hologram image H.

First, the card base material 11 constituting the card body 20 includes, for example, polyvinyl chloride resin, polyethylene terephthalate resin, acrylic resin, polycarbonate resin, ABS resin, and paper material capable of imparting antibacterial property. To be Antibacterial properties can be imparted by adding the above-mentioned antibacterial agent powder thereto. The antibacterial property can be omitted by appropriately selecting the structure according to the application of the card. In addition, a plastic film-like sheet 1 that is laminated on the card substrate 11 as needed.
The materials 8 and 19 are the same as those used for the card base material 11, or can be appropriately selected from the above materials.

The image 12 is a sublimation transfer material of yellow, magenta, and cyan colors and / or a black heat-melting transfer of visible information having a function of identifying a face directly on the card body 20 based on the image data. A heat transfer ribbon which is a material (wax type transfer material) may be used for transfer formation, or a photograph such as a face on which photographic paper, film or the like is formed may be attached.

The protective layer 14 contains antibacterial agent powder and is provided to protect the image 12 on the card from chemical damage or mechanical damage due to penetration of chemicals or solvents. That is, a mixture of a thermoplastic resin and an anti-friction agent is used. Further, in order to impart an antibacterial function, the following antibacterial agent powder is mixed.
The above-mentioned thermoplastic resin prevents penetration of plasticizers and chemicals such as acids, alkalis, alcohols and kerosene, and also suppresses scratches due to scratching. For example, there are polymethylmethacrylate, epoxy resin, thermoplastic acrylic resin, chlorinated rubber resin, vinyl chloride-vinyl acetate copolymer resin, cellulose resin, chlorinated polypropylene resin and the like. These polymethylmethacrylates and epoxy resins have excellent plasticizer resistance among existing thermoplastic resins, and are substances that are easily peeled off from the heat resistant base sheet 11. The plasticizer is contained in a soft vinyl sheet, a plastic eraser, or the like, and when it comes into contact with the plasticizer, the plasticizer migrates to the image surface and has a bad influence such as fading of the image.

The above-mentioned anti-friction agents improve abrasion resistance and scratch resistance, and include, for example, Teflon powder; polyethylene powder; animal wax, plant wax, mineral wax, petroleum wax and other natural waxes. Synthetic hydrocarbon wax, fatty alcohol and acid wax, fatty acid ester and glycerite wax, hydrogenated wax, synthetic ketone wax, amine and amide wax, chlorinated hydrocarbon wax, synthetic animal wax wax, Synthetic waxes such as α-olein wax; metal salts of higher fatty acids such as zinc stearate.

The mixing ratio of the above-mentioned thermoplastic resin and anti-friction agent is 85 to 95 parts by weight of the thermoplastic resin with respect to 100 parts by weight.
The range of 5 to 15 parts by weight of the anti-friction agent is preferable.
An antibacterial agent powder is mixed with these resin materials. The protective layer 14 may be provided not only on a part of the card body 20 such as around the image 12 but also on the entire surface of the card body 20.

The adhesive layer 13 includes the protective layer 14 and the card body 20.
Also, a heat-sensitive adhesive may be used, for example, polyester such as linear saturated polyester, vinyl chloride resin such as polyvinyl chloride or vinyl chloride-vinyl acetate copolymer resin, polyacryl. Acid, 2-methoxyethyl polyacrylate, polymethyl acrylate, polyacrysan-2-naphthyl, isobornyl polyacrylate, polymethacrylomethyl, polyacrylonitrile, polymethylchloroacrylate, polymethylmethacrylate, polymethacrylic acid Ethyl, poly-tert-butyl methacrylate, poly-isobutyl methacrylate,
Polyphenyl methacrylate, methyl methacrylate and alkyl methacrylate (provided that the number of carbon atoms in the alkyl group is 2
6) acrylic resin such as copolymer resin, polystyrene,
Examples thereof include polydivinylbenzene, polyvinylbenzene, styrene-butadiene copolymer resins, vinyl resins such as styrene and alkyl methacrylate (where the carbon number of the alkyl group is 2 to 6). Further, a pressure-sensitive adhesive which is usually used may be used, for example, vinyl chloride-vinyl acetate copolymer, ethylene-vinyl acetate copolymer, vinyl chloride-
Propionic acid copolymer, rubber-based resin, cyanoacrylate resin, cellulose-based resin, ionomer resin, polyolefin-based copolymer, etc., if necessary, a plasticizer, a stabilizer, a curing agent, etc. are added, and a solvent or diluent. There are some kneaded in. Furthermore, a UV curable resin can also be used.

In order to form the protective layer 14 and the adhesive layer 13, the heat resistant base sheet 21, the adhesive layer 13,
It is also possible to form the thermal transfer sheet 6 composed of the peelable protective layer 14 having antibacterial properties. Further, as shown in FIG. 7, it is possible to provide a hologram forming layer 17 and a transparent thin film layer 16 between the adhesive layer 13 and the peelable protective layer 14 having antibacterial properties.

The card 2 shown in FIG. 3 is a heat-resistant base sheet 2 shown in FIG. 8 as means for forming the image 12.
1. A thermal transfer ribbon (k in FIG. 15) on a thermal transfer sheet 8 having an antibacterial peelable protective layer 14 (hereinafter referred to as a peelable protective layer), an image receiving layer 15, and the like. Is formed, and each layer other than the heat resistant base sheet 21 is thermally transferred to the card substrate 11 (or the card body 20) (the antibacterial peelable protective layer 14, the image receiving layer 1).
5, image 12, etc.) can be obtained by transfer formation. Further similarly, the card 4 shown in FIG. 5 has the heat-resistant base sheet 2 shown in FIG. 9 as means for forming the image 12.
1. An image is formed on the image receiving layer 15 by a thermal transfer ribbon (k in FIG. 15) on the thermal transfer sheet 9 having the peelable protective layer 14 having the antibacterial property, the hologram forming layer 17, the transparent thin film layer 16 and the image receiving layer 15. 12 etc. are formed, and this is used as a card substrate 1
1 (or the card body 20) by thermal transfer to layers other than the heat-resistant base sheet 21 (antibacterial peelable protective layer 1
4, the hologram forming layer 17, the transparent thin film layer 16, the image receiving layer 15, the image 12 and the like) can be transferred and formed.

Image 12 of this card, as shown in FIG.
The card body 20 on which the card is formed is made of a white polyvinyl chloride resin or the like, and has a card base material 11 kneaded with an antibacterial agent powder, and the design of characters, numbers, patterns, etc. provided on the front and back surfaces. The visual information 10 is applied, and further, as shown in FIG. 10, a plastic film (for example, poly Sheets 18 and 19 (made of a vinyl chloride resin film) may be laminated. Further, the magnetic stripe 23 may be embedded in the plastic film sheet 18. In this case, the film-like sheet 18 obtained by kneading the antibacterial agent powder,
Unlike 19, the magnetic stripe 23 does not have an antibacterial function. Therefore, in a preferred embodiment, it is desirable that an antibacterial agent powder be mixed in the magnetic recording layer forming the magnetic stripe. Usually, the magnetic stripe is composed of a magnetic recording layer composed of magnetic powder and a binder and a strip-shaped film supporting the magnetic recording layer, and the antibacterial agent powder may be dispersed in the magnetic recording layer together with the magnetic powder. Also, a magnetic stripe not including the above-mentioned strip-shaped film can be applied, and in this case also, the antibacterial agent powder may be dispersed together with the magnetic powder in the magnetic recording layer.

As another embodiment, as shown in FIG. 11, film-like sheets 18 and 19 in which antibacterial agent powder is kneaded.
Coating layer 24 containing antibacterial agent powder on the surface of the
According to this, the plastic film-like sheet 18 in FIG. 11 may be constituted by a conventional plastic film-like sheet in which the antibacterial agent powder is not kneaded, or the plastic film-like sheet 18 described above. As for Nos. 19 and 19, it is of course possible to use a conventional plastic film-like sheet in which the antibacterial powder is not kneaded.

The card main body 20 shown in FIG. 12 is a card base material 11 made of a white polyvinyl chloride resin and the like, and a plastic film laminated on the front and back surfaces of the card base material 11 and kneaded with antibacterial agent powder ( (Polyvinyl chloride resin film or the like) sheets 18, 19 and the magnetic stripe 15 embedded in the above plastic film sheet 18
And a printing layer 22 made of ink mixed with antibacterial agent powder provided on both sides of the plastic film-like sheets 18 and 19, and a coating layer 24 provided on both sides of each printing layer 22 mixed with antibacterial agent powder. Its main part is composed. The coating layer 24 in which the antibacterial agent powder is mixed may be omitted depending on the use of the card, or the plastic film-like sheets 18 and 19 described above may be formed by a conventional method in which the antibacterial agent powder is not kneaded. Needless to say, it may be made of a plastic film sheet. Further, the card body 20 shown in FIG. 13 is obtained by changing the configuration of the back surface side of the card base material 11. That is, a printing layer 22 'made of a normal printing ink is provided on the back surface side of the card substrate 11, and a plastic film (polyvinyl chloride resin film or the like) sheet 19 in which antibacterial agent powder is kneaded on the printing layer 22'. Are laminated. The coating layer 24 containing the antibacterial agent powder may be omitted depending on the use of the card,
As a matter of course, the plastic film-like sheet 18 may be formed of a conventional plastic film-like sheet in which the antibacterial agent powder is not kneaded.

The cards 1 to 4 shown in FIGS. 2 to 5 and the card body 2 shown in FIGS.
In No. 0, when the printed layers 22 are provided on the front and back surfaces of the card base material 11, the plastic film-like sheets 18, 19 and the coating layer 24 need to be made of transparent materials, Since the magnetic stripe 23 is also recognized by the naked eye, it can be concealed or colored so as not to affect its appearance.

An antibacterial agent that imparts an antibacterial function used in the present invention
Mycelial powder is composed of antibacterial zeolite
For example, the antibacterial zeolite has the general formula x
M_n ²O ・ Al₂O₃・ YSiO₂・ ZH₂O (just
Where x and y are Al₂O₃With 1 as the standard
Is the coefficient of metal oxide and silica respectively, and z is
Synthetic zeolite expressed by (representing the coefficient of crystal water)
Part or all of the ion-exchangeable metal (M) is bactericidal
With silver, copper, zinc, mercury, tin, lead, bismuth, cad
At least one selected from the group consisting of chrome and chromium
Having a structure substituted with the metal ion of
For example, Kanebo Yakuhin Co., Ltd. product name "Bakutekira" (registered
Trademark). In addition, this antibacterial zeolite,
Also usually provided in a masterbatch (pellet form)
The antibacterial agent powder is a plastic film sheet
When it is blended with a resin or base material,
Mix and melt fat pellets and masterbatch of antibacterial powder
It is made to understand.

In the present invention, the constituent materials other than the above-mentioned antibacterial zeolite (for example, the card base material forming the main part of the card body, the coating layer, the ink, the plastic film sheet, the magnetic stripe, etc.) have been conventionally used. This type of material applied in the technology is still applicable.

The present invention can be used for cards such as credit cards, cash cards, members' cards and ID cards, and further, the transfer sheet of the present invention can be used for portable media such as passports and passbooks. It is possible to provide various other images,
An arbitrary image can be provided depending on the application.

Hereinafter, each constitution of the above-mentioned transfer sheet of the present invention will be described in detail. In addition, the same numbers are given to the portions having the same configuration in each of the drawings related to the card of the present invention.

The image receiving layer 15 is provided on the transfer sheets 8 and 9 and is transferred to the card body 20 through a transfer process after forming the image 12 and the like. The image receiving layer 15 is the image 12
However, it is preferable that it can be stably transferred and formed, and that it has good thermal adhesiveness to the card body 20. Details will be described in the transfer sheet shown below.

Next, the image 12 is usually a thermal transfer ribbon, which is a face image or the like based on image data and is composed of a yellow, magenta, and cyan sublimable transfer material and / or a black heat-meltable transfer material (wax type transfer material). It is appropriately formed by a thermal head or the like using these converted transfer materials.
For example, as described in JP-A-3-79384 and the like, a sublimable transfer material is a material that is in a sublimation or melt transition state by heat and penetrates into an image receiving layer. Specifically, a binder and a dye are main components, Examples of the binder include polyvinyl acetal, and a resin containing a cross-linked product of polyvinyl alcohol such as polyvinyl butyral as a main component, and dyes such as diarylmethanes, triarylmethanes, thiazoles, methines, azomethanes, and xanthenes.
Axazine, thiazine, azine, acridine,
There are azo series, spiro dipyran series, isodolino spiro pyran series, fluorane series, rhodamine dactam series, anthraquinone series, and the like. The heat-meltable transfer material is a material that is melted by heat and fused to the image receiving layer, and includes, for example, a wax layer and a heat transfer layer. As waxes, plant waxes such as candelilla wax, carnauba wax, rice wax and wood wax, animal waxes such as beeswax, lanolin and whale wax, petroleum waxes such as montan wax and petrolatane, and synthetic waxes such as polyethylene wax. Synthetic hydrocarbons such as waxes, modified waxes such as montan wax derivatives, hydrogenated waxes such as hydrogenated castor oil, fatty acids such as lauric acid, balmitic acid, myristic acid and stearic acid, and waxes such as fatty acid amides, fatty acid anilides and imidowaxes. There are acrylic resins, styrene resins, rosin resins, vinyl resins,
There are acetal type and rubber type.

The hot-melt transfer material is, for example, saturated polyester resin, polyvinyl chloride, polyvinyl chloride resin such as polyvinyl chloride-vinyl acetate, polymethyl acrylate,
Poly (2-naphthyl) acrylate, poly (methyl methacrylate), poly (ethyl methacrylate), poly (methacrylic acid) -t-
Butyl, polyphenylmethacrylate, copolymer of methylmethacrylate and alkylmethacrylate (however, the alkyl group has 2 to 6 carbon atoms) polymethylchloroacrylate, acrylic resin such as acryl-styrene copolymer, polystyrene, polydivinyl Resins of vinyl resins such as benzene, polyvinyltoluene, styrene-butadiene copolymer, and titanium oxide, calcium carbonate, Hansa yellow, oil emery 2G, oil black, pyrazolone orange, oil red, red iron oxide, anthraquinone violet, phthalocyanine blue as colorants. , Aluminum powder, bronze powder, pearl essence, magnetic powder, carbon black and the like.

Further, as shown in FIG. 7, the transfer sheets 8 and 9 on which the image 12 to be transferred onto the card is temporarily formed are the heat-resistant base sheet 21 which is a support, and the peelable protective layer 14 having an antibacterial property. The image-receiving layer 15 or the heat-resistant base sheet 21 as a support as shown in FIG. 8 is provided with a peelable protective layer 14 having an antibacterial property, a hologram-forming layer 17, a transparent thin film layer 16, and an image-receiving layer 15 in that order. There is. The heat-resistant base sheet 21 is a sheet having heat resistance that is not softened and deformed by heat and pressure during heat transfer, and is, for example, polyethylene terephthalate film, polyethylene naphthalate film, polyvinyl chloride, polyester, polycarbonate, polymethyl methacrylate. , Synthetic resin such as polystyrene, natural resin, paper, synthetic paper, and the like, which can be used alone or in combination as a composite, and the heat-resistant base sheet 21 has a thickness of 2 to 50 μm, preferably It is 10 to 38 μm.

The peelable protective layer 14 having antibacterial properties is peeled from the heat-resistant base sheet 21 together with the image receiving layer 15 when it is transferred to the card body 20, and is exposed to the outside on the card in addition to having peelability. In order to do so, it is necessary that the hologram forming layer and the like in the lower layer have a function of protecting from chemical damage or mechanical damage due to penetration of chemicals / solvents, etc., and in order to have both functions,
A mixture of a thermoplastic resin and an anti-friction agent is used.
Further, the above antibacterial agent powder is mixed in order to impart an antibacterial function.

The above-mentioned thermoplastic resin prevents penetration of plasticizers and chemicals such as acids, alkalis, alcohols and kerosene, and also suppresses scratches due to scratching. For example, there are polymethylmethacrylate, epoxy resin, thermoplastic acrylic resin, chlorinated rubber resin, vinyl chloride-vinyl acetate copolymer resin, cellulose resin, chlorinated polypropylene resin and the like. These polymethylmethacrylate and epoxy resins have excellent plasticizer resistance among existing thermoplastic resins, and further, the heat resistant base sheet 11
It is a substance that can be easily peeled off from. The plasticizer is contained in a soft vinyl sheet, a plastic eraser, or the like, and when it comes into contact with the plasticizer, the plasticizer migrates to the image surface and has a bad influence such as fading of the image.

The above anti-friction agents improve abrasion resistance and scratch resistance. For example, Teflon powder; polyethylene powder; animal wax, plant wax, mineral wax, petroleum wax and other natural waxes. Synthetic hydrocarbon wax, fatty alcohol and acid wax, fatty acid ester and glycerite wax, hydrogenated wax, synthetic ketone wax, amine and amide wax, chlorinated hydrocarbon wax, synthetic animal wax wax, Synthetic waxes such as α-olein wax; metal salts of higher fatty acids such as zinc stearate.

The mixing ratio of the above-mentioned thermoplastic resin and anti-friction agent is 85 to 95 with respect to 100 parts by weight of the thermoplastic resin.
The range of 5 to 15 parts by weight of the anti-friction agent is preferable.
The coating amount of the peeling layer 8 is preferably about 1 to 3 g / m ² .

Further, the peelable protective layer 14 having antibacterial properties may be blended with a peeling improving agent such as a linear saturated polyester resin in order to improve the cuttability of the transfer portion from the thermal transfer sheet during thermal transfer. The mixing ratio is preferably about 0 to 3 parts by weight with respect to 100 parts by weight. It should be noted that it is desirable not to add other additives such as an ultraviolet absorber to the release layer. Addition of these causes deterioration of chemical resistance, penetration of chemicals such as plasticizers and solvents, and deterioration of mechanical strength.

The antibacterial peelable protective layer 14 is formed by coating the above composition constituting the antibacterial peelable protective layer with an appropriate solvent to prepare a gravure coat, roll coat, bar coat, etc. It is formed by applying and drying the heat resistant base sheet 21 using the application means.

The image-receiving layer 15 is formed by forming the image 12 by a thermal transfer means using a thermal transfer ribbon (not shown) having a sublimable or heat-meltable transfer material, and is further thermally bonded to the card body 20 of the card. The image receiving layer 15 on which the image 12 is formed constitutes a part of the card. That is, the image receiving layer 15 is made of a thermoplastic resin capable of forming an image made of a sublimable or heat-meltable transfer material or the like by a thermal transfer means and having thermal adhesiveness to the card body 20.

When the heat melting temperature of the thermoplastic resin is low, a part of the thermoplastic resin of the image receiving layer 15 may be heat fused (transferred) to the heat transfer ribbon (not shown). It is conceivable to use a thermoplastic resin having a high heat melting temperature.
It is necessary to set the temperature of the heating means such as a heat roll or a heat plate in the heat transfer step of transferring the image receiving layer 15 on which the mark is formed to the card body 20 to a high setting. However, there is a problem that the image 12 made of a sublimable dye or the like is deteriorated (discolored) and the card body 20 is thermally damaged due to high temperature. Further, an additive such as silicon may be mixed into the image receiving layer 15 in order to reduce the adhesiveness of the image receiving layer 4 in order to prevent thermal fusion of the image receiving layer 15 to the thermal transfer ribbon (not shown). 15
However, there is a problem that the adhesiveness to the card body 20 deteriorates. Therefore, this thermoplastic resin has a glass transition point of 50 ° C.
As described above, the problem can be solved by adding the filler to form the image receiving layer 15.

The thermoplastic resin used for the image receiving layer 15 preferably has a glass transition point (Tg) of 50 ° C. or higher and 130 ° C. or lower. In the case of a thermoplastic resin having a glass transition point (Tg) of less than 50 ° C., after the transfer to the card body 20, the thermoplastic resin causes migration of the dye to cause bleeding of the image 12, and the glass transition point is 1 or less.
With a thermoplastic resin having a temperature of 30 ° C. or higher, the temperature at which the image receiving layer 15 is thermally transferred to the card body 20 (or card base material) by the above-described heating means needs to be high, and the card body 20 (or card) or the like. The card base material 11) may be deformed by heat.

Examples of such thermoplastic resin include polyester such as linear saturated polyester, vinyl chloride resin such as polyvinyl chloride and vinyl chloride-vinyl acetate copolymer resin, polyacrylic acid, polyacrylic acid-2. -Methoxyethyl, poly (methyl acrylate), poly (acrysan-2-naphthyl), poly (isobornyl acrylate), poly (methacrylomethyl), poly (acrylonitrile), poly (methyl chloroacrylate), poly (methyl methacrylate), poly (ethyl methacrylate), poly (meth) acrylic acid-tert -Acrylic resins such as butyl, polybutyl isobutyl methacrylate, polyphenyl methacrylate, copolymer resins of methyl methacrylate and alkyl methacrylate (provided that the alkyl group has 2 to 6 carbon atoms), polystyrene, polydivinylbenzene, polyvinyl Benz , Styrene - butadiene copolymer resin, styrene-alkyl methacrylate (The number of carbon atoms of the alkyl group is 2-6) include vinyl resins such as.

Further, when the image 12 is formed by the thermal head using a thermal transfer ribbon (not shown) on the surface of the image receiving layer 15, the main component of the image receiving layer 15 is made of a thermoplastic resin, so that the heat of the thermal head is applied. Image receiving layer 1
5 is heat-fused to the dye layer of the thermal transfer ribbon (not shown) to make the image 12 unclear. Therefore, in order to prevent the heat-fusing, a filler having an antiblocking property in the thermoplastic resin, particularly a heat-melting temperature (organic filler) is used. In that case, a softening point or a decomposition point, and in the case of an inorganic filler, a melting point) is added.

Examples of such organic fillers include polytetrafluoroethylene fine particles, starch, silicone resin fine particles, polyacrylonitrile-based fine particles, cured resin fine particles made of benzognamine resin and melamine resin. Examples of the non-8 filler include calcium carbonate, talc, kaolin, zinc oxide, titanium oxide, silicon oxide, aluminum hydroxide, and magnesium oxide.

The mixing ratio of the thermoplastic resin and the filler may be in the range of 1 to 200 parts by weight of filler with respect to 100 parts by weight of thermoplastic resin. The method of applying the image-receiving layer 4 is formed by first forming the image-receiving layer composition into a coating material with a suitable solvent, and coating and drying the coating material using a known coating means such as gravure coating, roll coating and bar coating. . Coating amount is 1
It is about 3 g / m ² .

Further, in order to prevent the discoloration of the dye constituting the image 12 due to the light, the maximum absorption wavelength of 250 in the image receiving layer.
An ultraviolet absorber of 400 nm may be added. Examples of such an ultraviolet absorber include phenyl salicylate, p-tert-butylphenyl salicylate, p-
Salicylic acid-based UV absorbers such as octylphenyl salicylate, 2,4-dihydroxybenzophenone, 2-hydroxybenzophenone, 2-hydroxy-4-octoxybenzophenone, 2-hydroxy-4-dodecyloxybenzophenone, 2,2'-dihydroxy- 4-methoxybenzophenone, 2,2'-dihydroxy-4,
4'-dimethoxybenzophenone, 2-hydroxy-4
Benzophenone-based UV absorbers such as -methoxy-5-sulfobenzophenone, 2- (2'-hydroxy-5'-
Methylphenyl) benzotriazole, 2- (2'-hydroxy-5'-tert-butylphenyl) benzotriazole, 2- (2'-hydroxy-3'-tert.
-Butyl-5'-methylphenyl) benzotriazole, 2- (2'-hydroxy-3 ', 5'-ditert
-Butylphenyl) -5-chlorobenzotriazole,
Benzotriazole-based UV absorbers such as 2- (2'-hydroxy-3 ', 5'-ditert-amylphenyl) benzotriazole, 2-ethylhexyl-2-cyano-3,3'-diphenylacrylate, ethyl-2. Examples include cyanoacrylate-based ultraviolet absorbers such as -cyano-3,3-diphenylacrylate.

The mixing ratio of the ultraviolet absorber may be 5 to 40 parts by weight with respect to 100 parts by weight of the mixture of the thermoplastic resin and the filler.

The hologram forming layer 17 is, as the hologram image H, a surface relief type hologram having a fine concavo-convex pattern, for example, and a transparent thin film layer 16 is further provided.

The hologram forming layer 17 has such characteristics that the embossing moldability is good, press unevenness hardly occurs, a bright reproduced image is obtained, and the adhesiveness between the peelable protective layer and the transparent thin film layer is good. A resin having
For example, vinyl chloride-vinyl acetate copolymer, urethane resin, polycarbonate resin, polystyrene resin, thermoplastic resin such as polyvinyl chloride resin, unsaturated polyester resin, melamine resin, epoxy resin, urethane (meth)
Thermosetting resins such as acrylates, polyester (meth) acrylates, epoxy (meth) acrylates, polyols (meth) acrylates, melamine (meth) acrylates, triazine (meth) acrylates and mixtures thereof, and further radically polymerizable unsaturated groups It is possible to use a thermoformable material having, and even a resin other than the above, as long as it is a resin having stability capable of forming a hologram.

Further, as a modifier for improving coating suitability and transferability, a cellulose resin such as nitrocellulose, acetylcellulose, cellulose acetate butyrate, cellulose acetate propionate, ethyl cellulose or methyl cellulose may be added.

In order to coat such a hologram forming layer 17, the antibacterial coating of the thermal transfer sheets 8 and 9 shown in FIGS. 7 and 8 is carried out by a known coating method such as roll coating or blade coating of a resin which has been made into a paint. It can be formed by coating and drying on the peelable protective layer 14 having the property, and its film thickness is 0.5.
It is set to about 5 μm.

The hologram-forming layer 17 formed in this manner is appropriately bonded to the heat-resistant base sheet 21 coated with the antibacterial release adhesive layer 14, and is heated and pressed during embossing. The card has excellent moldability, does not exhibit adhesiveness to a surface relief hologram stamper whose surface is plated with nickel, gold, chromium, etc., and yet exhibits good adhesiveness to the transparent thin film layer 16, The film cutability required at the time of transfer to the substrate is also good.

On the hologram forming layer 17, there is formed a white light or monochromatic light reproduction type hologram in which a relief pattern of fine unevenness of the hologram image H is recorded.
In the production of this hologram, a relief original of the hologram is produced, and a relief pattern of the hologram information area is formed by a method of photographing a hologram using a transparent original (not shown). The transparent original and the diffusing plate are arranged in an overlapping state, and a support coated with a photosensitive material is arranged on the lower side. When incident light is incident from above the diffusion plate, it is diffused by the diffusion plate and selectively transmits the transparent original. The light transmitted through the transparent original is called object light. This object light interferes with the reference light emitted from the top of the support coated with the photosensitive material in the 12 o'clock direction and obliquely from the side when viewed from the side, and corresponds to the hologram information area on the photosensitive material. Record the interference fringes.

After such an exposure process, the photosensitive material is developed to obtain a master hologram having a relief pattern. Based on this, a stamper is produced by a known electroforming means. This stamper forms a relief pattern on the hologram forming layer.

In addition, a well-known two-bundle interferometry method, a grating hologram in which a minute uneven shape of a hologram image composed of a diffraction grating (grating) by an electron beam (EB) is formed, or a hologram such as a Lippmann hologram can be used. However, the present invention is not limited to these and can be variously used according to the application. It should be noted that setting the material of the hologram forming layer according to the hologram to be configured can be appropriately and easily performed based on a known technique. Further, the transparent thin film layer 16 can be omitted.

Next, as a material forming the transparent thin film layer 16, the hologram forming layer 17 (refractive index n = 1.3 to
A material having a higher refractive index than 1.5) and a high transmittance in the visible light region is used. When the transparent thin film layer having a high refractive index is provided along the relief pattern surface of the hologram forming layer, the transparent thin film layer is within the reproducible angle range of the hologram image H due to the reproduction angle dependence of the hologram. This is because the reflectance of light in the area becomes maximum and functions as a “reflection hologram”, while outside the reproducible angle range of the hologram image H, it functions only as a transparent body and allows the image 12 to be seen through. . As a material forming such a transparent thin film layer,
Inorganic materials listed in Table 1 may be mentioned.

[0058]

[Table 1]

As a method for forming the transparent thin film layer, a known film forming means such as a vacuum vapor deposition method, a sputtering method, an ion plating method or the like can be used, and the film thickness thereof is in the range of 10 to 1000 nm. Appropriate. Further, a plurality of transparent thin film layers may be stacked, a combination of transparent thin film layers having different refractive indexes may be used, and a high refractive index layer and a low refractive index layer may be alternately laminated. Furthermore, inorganic compounds having a low refractive index (refractive index of 0.3 or more), Al, S
It is also possible to form n, Te, In, Cu, Bi, Zn, Pb, Cu, etc. as a simple substance, alloy, or compound in the range of 1 to 20 nm.

A method of manufacturing the card 4 having the hologram image H by the thermal transfer method will be briefly described.

First, as shown in FIG. 14A, the thermal transfer sheet a used for forming this card is a heat resistant base sheet b made of polyethylene terephthalate or the like and a peelable protective layer c made of thermoplastic acrylic resin or the like. And a hologram forming layer d having a relief pattern of the hologram image H, a transparent thin film layer e having a refractive index larger than that of the hologram forming layer d, further dyed with a sublimable (heat transferable) dye, and transferred. The image receiving layer f is made of a resin material having thermal adhesiveness to the body.

Then, as shown in FIG. 15, this thermal transfer sheet a is conveyed to a sublimation transfer device j whose main part is composed of a drum h and a thermal head i, and a transfer ribbon k whose colorant is a sublimable dye. The dye layer (not shown) of the thermal transfer sheet a is brought into contact with the image receiving layer f of the thermal transfer sheet a, the thermal head i is pressed from the transfer ribbon k side, and the heating element group (not shown) of the thermal head i is shown based on the image data. No.) is appropriately heated to form an image g on the image receiving layer f [FIG.
(B)]. When the image has multiple colors, transfer ribbons having different color tones (for example, yellow, magenta, cyan, etc.) are applied, and the same steps are repeated to form a multicolor image on the image receiving layer f. In addition, s is a magnetic stripe formed at the time of manufacturing the card body (or the card body). Also,
In the case of thermal fusion transfer (WAX transfer), the resin of the ink layer of the transfer ribbon is transferred together with the resin, and an image of the ink layer is formed on the image receiving layer f.

Next, the image receiving layer f of the thermal transfer sheet a on which the image is formed is brought into contact with the card base material (or the card body) m [FIG. 14 (C)], and from the thermal transfer sheet a side, a heat roll and a heat plate are applied. An image display body p is produced by pressing and heating a heating means n such as the above to adhere the image receiving layer f to the card base material (or the card body) m, and peeling the heat resistant base sheet b from the thermal transfer sheet a. FIG. 14 (D)].

Hereinafter, further specific examples of the present invention will be described. <Example 1> [Thermal transfer sheet] As shown in FIG. 8, in the transfer sheet 8, a heat-resistant base sheet 21 made of a transparent polyethylene terephthalate film having a thickness of 25 μm was coated with a peelable protective layer composition having the following composition. The coating was performed by a gravure method, and a peeling protective layer 14 having a thickness of 1.0 μm and having an antibacterial property was formed at a drying temperature of 110 ° C. ○ Removable protective layer composition having antibacterial properties Polymethylmethacrylate 40 parts Polyethylene powder 7 parts Polyester resin 3 parts Inorganic antibacterial agent powder 0.25 parts (Kanebo Yakuhin Co., Ltd. "Bakutekira BM-102DC" [trade name]) Methyl ethyl ketone 100 parts Toluene 50 parts

Next, an image receiving layer composition having the following composition was applied by a gravure method at a drying temperature of 110 ° C. and a thickness of 1.
An image receiving layer 15 having a thickness of 0 μm was formed. ○ Image-receiving layer composition Vinyl chloride-vinyl acetate copolymer 30 parts Polyester resin 20 parts Methyl ethyl ketone 75 parts Toluene 65 parts

[Thermal Transfer Ribbon] Dye inks are prepared by dispersing dyes of three colors (yellow, magenta, and cyan) in polyvinyl butyral, and each color is alternately formed on a polyester film having a thickness of 6 μm using a gravure coater. A thermal transfer ribbon having dye layers of three colors was prepared by coating and drying so as to be arranged.

The above-mentioned thermal transfer sheet and thermal transfer ribbon are set in the transfer device shown in FIG. 11, and the heating element group of the thermal head i is caused to generate heat based on the image data of the face or the like, and the image receiving layer 15 of the thermal transfer sheet 8 is subjected to the above-mentioned operation. A card made of polyvinyl chloride in which a multicolor image 12 is formed by a transfer ribbon made of a dye, and an inorganic antibacterial agent powder (antibacterial zeolite manufactured by Kanebo Yakuhin Co., Ltd., Bactekiller BM-102DC [trade name]) is kneaded. The image receiving layer 15 of the transfer sheet 8 is brought into contact with the base material 11, and the transfer sheet side is pressed and heated by a heating means (heating temperature: 150 ° C.), and the image receiving layer 15 is thermocompression-bonded onto the card base material 11 and transferred. The heat-resistant base sheet 21 is peeled off from the sheet 8 and the image 12 as shown in FIG.
A card 2 having a protective layer 14 having antibacterial properties was produced. The transfer ribbon and the card base material 11 are set in a transfer device (not shown), and the heating element group of the thermal head is caused to generate heat based on image data of a face or the like, and the card base material 11 is subjected to the above-mentioned operation at a desired position. It is also possible to form a multicolored image 12 by using a transfer ribbon made of the above dye and further transfer the above transfer sheet or the transfer sheet shown in FIG. 7 to form the protective layer 14 having antibacterial properties.

[Test Method for Antibacterial Property] Next, an antibacterial property evaluation test was conducted on the card according to this example by the following method.

First, the Escherichia coli
0.2 ml of the IFO 3301) bacterial solution was inoculated, a polyethylene film was adhered thereto, and the product was stored at 35 ° C., and after 24 hours of storage, the surviving bacteria were washed out with SCDLP medium [manufactured by Nippon Pharmaceutical Co., Ltd.]. The viable cell count of this washout solution was measured by an agar plate culture method (35 ° C., 2 days) using a cell count medium,
It was converted to the viable cell count per card.

As a control, a petri dish was inoculated with the same amount of the bacterial solution as that inoculated into the above curd and tested in the same manner, and the measurement at the start of storage was performed by the control.

For comparison, Example 1 was repeated except that the inorganic antibacterial agent powder was not added to the card substrate and the protective layer.
A card having the same structure as described in (1) was prepared (Comparative Example 1), and the same test was performed on this card by inoculating the same bacterial solution.
The results are shown in Table 2.

Example 2 A card substantially the same as the card according to Example 1 was produced except that the compounding ratio of the inorganic antibacterial agent powder in the peelable protective layer was 0.5 part.

The same fungus solution was inoculated on the curd of Example 2 as well, and the same test as the antibacterial test method of Example 1 was conducted. The results are also shown in Table 2.

<Example 3> [Thermal transfer sheet] A heat-resistant base sheet of Example 1, a peelable protective layer having antibacterial properties, and an image receiving layer between the peelable protective layer and the image receiving layer of the transfer sheet. A hologram forming layer composition having the following composition is applied by a gravure method,
The hologram forming layer 17 having a thickness of 1.0 μm was formed at a drying temperature of 110 ° C. Hologram forming layer composition Vinyl chloride-vinyl acetate copolymer 20 parts Urethane resin 15 parts Methyl ethyl ketone 70 parts Toluene 30 parts The plate surface temperature of the nickel press plate on which a predetermined hologram image H was produced was applied to this hologram forming layer 17. 165
A hologram image was formed at a temperature of ° C, and a transparent thin film layer 16 having a thickness of 50 nm made of a material (ZnS) having a refractive index larger than that of the hologram forming layer was formed on the hologram forming layer 17 by a vacuum deposition method.

Thereafter, the image 12 is formed on the image receiving layer 14 of the thermal transfer sheet 9 by using the thermal transfer ribbon in the same manner as in Example 1,
Further, each layer except the heat resistant base sheet 21 is transferred and formed on the card base material 11, and an image 12, an image receiving layer 15, a transparent thin film layer 16, a hologram forming layer 17, an antibacterial peeling protection as shown in FIG. A card 4 having a layer 14 was produced. The thermal transfer ribbon used is the same as in Example 1.

The same fungus solution was inoculated on the curd of Example 3 and the same test as the antibacterial test method of Example 1 was conducted. The results are also shown in Table 2.

[0077]

[Table 2] "Control": The petri dish was inoculated with the same amount of the bacterial solution as that inoculated into the curd. "-": Not tested.

[Evaluation Test of Antibacterial Property] Usually, it is judged that an antibacterial effect was obtained when the number of inoculated viable bacteria decreased by 2 orders after 24 hours. Therefore, it can be confirmed that the card according to each example has a sufficient antibacterial function.

The antibacterial zeolite (Bactekiller BM-102DC [trade name]) applied in each example has been confirmed to be nontoxic and safe by various tests, has excellent stability, and is stable with time. Since it is almost nonexistent, a permanent antibacterial effect can be obtained. Also, heat resistance and acid resistance
Since it is also excellent in alkali resistance, it is a material suitable as the antibacterial agent powder according to the present invention.

As shown in FIG. 10, the card body 20 used in the card according to each of the above-mentioned embodiments is composed of a card base material 11 made of a white polyvinyl chloride resin and normal printing inks provided on the front and back surfaces thereof. The card body 20 is composed of the printed layer 22 and the card body 2
Inorganic antibacterial agent powder (antibacterial zeolite manufactured by Kanebo Yakuhin Co., Bactekiller BM-1
02DC [trade name]) and plastic film (made of polyvinyl chloride resin) sheets 18 and 19 are laminated, and a plastic film sheet 1
There are some in which the magnetic stripe 15 is embedded.

Alternatively, as shown in FIG. 13, a printing layer 22 'made of ordinary printing ink is provided on the back side of the card substrate 11 made of white polyvinyl chloride resin, and the printing layer 22' is formed on the printing substrate 22 '. Inorganic antibacterial powder (antibacterial zeolite, trade name Bactequila BM-102DC)
Of a plastic film (made of polyvinyl chloride resin) sheet 19 in which 0.5% by weight of K is mixed, and a magnetic stripe 15 is provided on a part of the surface of the card substrate 11 described above.
And a plastic film (made of polyvinyl chloride resin) sheet 18 having the above-mentioned inorganic antibacterial agent powder not kneaded, and the plastic film sheet 18
A printing layer 2 which is provided on the surface of the sheet and is made of ordinary printing ink
In some cases, the main part is composed of 2'and an acrylic coating layer 24 provided on the surface of the printing layer 22 'and containing 0.5% by weight of the inorganic antibacterial agent powder.

[0082]

EFFECTS OF THE INVENTION An antibacterial protective layer and an antibacterial card body are provided on a region including an image of the present invention, and an image or the like formed after manufacturing a card is formed as a visual identification function. With this card, it is possible to protect the image and add an antibacterial function to the entire card, so that when applied to a medical examination card for hospitals, etc., it is possible to prevent infections etc. mediated by these cards. Since it has an antibacterial function and an antibacterial function, it has an effect that a clean feeling can be provided to the card user. Further, even when used for other cards (for example, a cash card, a credit card, an ID card, etc.), it has an antibacterial function and is clean and safe to use. Further, by forming an image on the card, it is possible to prevent fraudulent acts by collation, and by providing a hologram layer, the forgery prevention property and the decorative property are improved.

Further, according to the transfer sheet used in the production of the card of the present invention, the image receiving layer is provided with a visible image and a peelable protective layer having an antibacterial property, and can be integrally formed on the card body together with the protective layer after image formation. It becomes possible to protect images and the like and to impart an antibacterial function to the entire card. Therefore, when applied to a medical examination card for hospitals and the like, it is possible to prevent infections and the like mediated by these cards, and to have an antibacterial function, thereby providing a card user with a feeling of cleanliness. Also, other cards (such as cash cards, credit cards,
By combining with an ID card or the like) or another antibacterial information medium, the entire information medium has an antibacterial function, so that the information medium is clean and can be safely used. Further, by providing the hologram layer, the forgery prevention property and the decorative property are improved.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of an antibacterial card according to the present invention.

FIG. 2 is a cross-sectional view taken along line XX of FIG.

FIG. 3 is a cross-sectional view showing another example of the card according to the present invention.

FIG. 4 is a cross-sectional view showing another example of the card according to the present invention.

FIG. 5 is a sectional view showing another example of the card according to the present invention.

6 is a cross-sectional view of a thermal transfer sheet used to manufacture the card of FIG.

7 is a cross-sectional view of a thermal transfer sheet used to manufacture the card of FIG.

8 is a cross-sectional view of a thermal transfer sheet used to manufacture the card of FIG.

9 is a cross-sectional view of a thermal transfer sheet used to manufacture the card of FIG.

FIG. 10 is a cross-sectional view showing an example of a card body 20 used in the card according to the present invention.

FIG. 11 is a cross-sectional view showing an example of a card body 20 used in the card according to the present invention.

FIG. 12 is a cross-sectional view showing an example of a card body 20 used in the card according to the present invention.

FIG. 13 is a cross-sectional view showing an example of a card body 20 used in the card according to the present invention.

FIG. 14 is an explanatory diagram showing a process of manufacturing a card using a thermal transfer sheet.

FIG. 15 is a conceptual diagram illustrating continuous manufacturing steps for manufacturing an image display body using a thermal transfer sheet.

[Explanation of symbols]

1, 2, 3, 4 Cards 7, 8, 9 Thermal transfer sheet 10 Visual information 11 Card base material 12 Image 13 Adhesive layer 14 Antibacterial protective layer or antibacterial peelable protective layer 15 Image receiving layer 16 Transparent thin film Layer 17 Hologram forming layer 18, 19 Plastic film-like sheet 20 Card body 22 Printing layer having antibacterial property 22 'Normal printing layer 23 Magnetic stripe 24 Coating layer H Hologram image a Thermal transfer sheet b Heat resistant base sheet c Having antibacterial property Peelable protective layer d Hologram forming layer e Transparent thin film layer f Image receiving layer g Image h Drum i Thermal head j Sublimation transfer device k Transfer ribbon m Card substrate (or card body) n Heating means p Card s Magnetic stripe

Continuation of front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display location // A01N 59/16 A01N 59/16 AZ (72) Inventor Naoaki Shindo 1-5-5 Taito, Taito-ku, Tokyo No. 1 Toppan Printing Co., Ltd.

Claims (13)

[Claims] 1. A card having an image formed on at least a part of a card body, wherein a protective layer having an antibacterial property is provided as an outermost layer on a region including the image, and the card body has an antibacterial group. A card, wherein the card or the card body is made of a base material having an antibacterial portion on the entire front surface and back surface. 2. The card according to claim 1, wherein the protective layer having antibacterial properties contains antibacterial agent powder. 3. The card according to claim 1, wherein the base material contains an antibacterial agent powder. 4. At least one of the antibacterial portions provided on the outermost surface side and the outermost surface side of the substrate is formed of a coating layer mixed with antibacterial agent powder. The card according to any one of 3. 5. The at least one antibacterial portion provided on the outermost surface side and the outermost surface side of the base material is constituted by a printing layer made of an ink mixed with an antibacterial agent powder. The card according to any one of Items 1 to 3. 6. The at least one antibacterial portion provided on the outermost surface side and the outermost surface side of the base material is constituted by a plastic film sheet kneaded with an antibacterial agent powder. The card according to any one of 1 to 3. 7. The card according to claim 1, wherein the antibacterial agent powder is composed of antibacterial zeolite. 8. A hologram forming layer having a hologram image under the protective layer, and a transparent thin film layer in contact with the hologram forming layer and having a refractive index larger than that of the hologram forming layer. The card according to any one of claims 1 to 7. 9. A transfer sheet having antibacterial properties, comprising a heat resistant base sheet, a peelable protective layer having antibacterial properties, and an adhesive layer. 10. A heat-resistant base sheet, an antibacterial peelable protective layer, an image formed of a sublimable transfer material and / or a heat-melt transfer material, and capable of being heat-bonded to a material to be transferred. A transfer sheet comprising an image-receiving layer having properties. 11. A hologram forming layer having a hologram image between the antibacterial peelable protective layer and the image receiving layer, and a transmission which is in contact with the hologram forming layer and has a refractive index larger than that of the hologram forming layer. The transfer sheet according to claim 9 or 10, wherein the transfer sheet is provided with a conductive thin film layer. 12. The transfer sheet according to claim 9, wherein the antibacterial peelable protective layer contains an antibacterial agent powder. 13. The transfer sheet according to claim 12, wherein the antibacterial agent powder is composed of antibacterial zeolite.