JPH11268456A - Card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide efficiently forgery-proof cards with outstanding design properties which can be easily distinguished from each other by card issuing company, in cards with a hologram sheet to be used commonly among plural card issuing companies. SOLUTION: This card comprises a card base, a hologram sheet or a diffraction grating sheet provided on, at least, part of the surface of the card base, and a heat-fusible ink pattern formed on at least, part of the sheet. Under this structure, it is possible to easily distinguish plural card issuing companies from each other, even when the designs of hologram sheets of the cards are common, and further enhance the forgery proofness and the design properties of the card.

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 particularly to a card having a hologram sheet or diffraction grating sheet (hereinafter simply referred to as "hologram sheet") patterned into an arbitrary shape.

[0002]

2. Description of the Related Art Various cards widely used in the past are:
As shown in FIG. 1 etc., at least one surface of a white core made of a vinyl chloride resin or a polyester resin, for example, by offset printing, gravure printing or silk screen printing, etc., information common to each card issuing company, for example, A company name, trademark, etc. are printed, and an oversheet made of a transparent resin is laminated on the surface to protect such common information, and a hologram sheet is attached for the purpose of preventing forgery of the card and decoration of the card. Further, individual information such as an employee number, a name, and a face photograph is formed.

[0003]

As for the hologram sheet in the conventional card as described above, it is necessary to prepare a hologram sheet having a different design for each issuing company in order to prevent forgery. If the number of cards per issuer is very large, for example, if the number of cards per company is as large as several hundred thousand, there is no particular problem in the cost of creating a hologram sheet, If less,
For example, in the case where the number of issued hologram sheets is about several tens to several thousands per company, the production cost of the hologram sheet increases due to the complicated production of the hologram sheet, and as a result, the cost of producing the card increases. There is.

[0004] As described above, the problem is that, for a card with a small number of issued cards per company, the design of the hologram sheet used by a plurality of companies is standardized, and the logo mark of the issuing company is printed on the common hologram sheet. It is conceivable to form and distinguish issuers. However, ordinary printing cannot solve the above-mentioned problem in consideration of the printing plate production cost and the like.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art, and to easily identify a card having a hologram sheet commonly used by a plurality of card issuing companies for each issuing company, thereby preventing forgery. An object of the present invention is to provide a card having excellent characteristics and design.

[0006]

The above object is achieved by the present invention described below. That is, the present invention provides a card base,
A card comprising a hologram sheet or a diffraction grating sheet provided on at least a part of the surface of the card substrate, and a pattern made of a hot-melt ink formed on at least a part of the surface of the sheet. provide.

According to the present invention, a necessary transfer pattern (for example, a logo mark) is printed and formed on an appropriate substrate sheet other than a card by a hot-melt transfer method, and the printed pattern is printed on a hologram sheet. (Hereinafter, this method is referred to as a retransfer method). Therefore, for example, a company name, a logo mark, a trademark, a service mark, and the like can be easily formed on the surface of the hologram sheet bonded to the card surface, and the design of the hologram sheet of the card can be easily performed by a plurality of card issuing companies. Even if they are common, you can easily distinguish those issuers,
In addition, the forgery prevention and design of the card can be further improved.

[0008]

Next, the present invention will be described more specifically with reference to the embodiments shown in the drawings. The example shown in FIG. 1 is a front view of an example of a conventional card. Various common information such as a company name are printed on the surface of the card by a normal printing method such as gravure printing or screen printing. Employee number, etc.
Individual information such as the name of the card owner is printed and formed, and a hologram sheet displayed in a large size is attached for convenience of explanation. This hologram sheet itself is publicly known, for example, a hologram transfer sheet having a hologram layer formed on a release film by an ordinary method was prepared, and this was transferred or pasted to the card surface by a hot stamping method or another method. Things. The hologram transfer method itself has been developed by the present applicant and has already been sold and used in the market. The present invention is characterized in that, for example, a pattern such as a company name, a logo mark, a trademark, a service mark, etc. is formed on the hologram sheet by a hot-melt ink.

FIG. 2a shows a transparent base film, for example,
This figure shows a state in which a white print is formed on a thin polyethylene terephthalate film surface by using a thermal head and a logo mark (DNP) as a reverse image via a normal hot-melt transfer sheet. It should be noted that the pattern formed by printing is not limited to white characters at all, and it is a matter of course that the pattern may have any shape. FIG. 2B is the same as FIG.
It is sectional drawing in the XX arrow of No ..

[0010] The hot-melt transfer sheet used in this method is obtained by forming a colorant and a binder, particularly a mixture of a pigment and a wax or a thermoplastic resin having a relatively low melting point, on a base film having relatively excellent releasability. A heat-fusible ink layer is provided, and an ink layer having an arbitrary hue can be obtained by selecting a pigment. For example, if a black pigment such as carbon black is used as a pigment, the underlying hologram sheet can be completely concealed while being re-transferred onto the hologram sheet, and a different hue, for example, a red or gold pigment Is used, a red or gold pattern corresponding to the hue can be formed, and if a transfer sheet for forming a color image of three primary colors is used, an arbitrary full-color pattern can be formed. The hot-melt transfer system itself is well known in the art.

FIG. 3 is a front view of the card of the present invention.
This card is basically the one shown in FIG. 1 except for the retransfer of the ink layer.
Is the same as the card shown in FIG. The present invention is achieved by transferring a re-transfer sheet having the logo mark shown in FIG. 2 formed on the hologram sheet surface of the card shown in FIG. 1 with the ink layer surface facing the hologram sheet surface and transferring the logo mark onto the card. Is configured. At this time, if the base film in the retransfer sheet shown in FIG. 2 is a transparent film, the transparent film after retransfer can be used as a protective layer for a logo mark without peeling off the transparent film.

In this way, even if the design of the hologram sheet of the card is the same, it is possible to clearly indicate that the issuing company is different by forming the specific pattern as described above, It also has an advertising effect, and is not limited to a logo mark. By forming various patterns, it is possible to further improve the forgery prevention effect and the design of the entire card.

FIG. 4a shows a transparent base film, for example,
This shows a state in which another white pattern is printed and formed on a thin polypropylene film surface by a thermal head via a normal hot-melt transfer sheet. Incidentally, FIG.
It is XX arrow sectional drawing of a. FIG. 5 is a front view of the card of the present invention in which the pattern shown in FIG. 4 is transferred onto the hologram sheet of FIG. 1 as in the case of FIG. Even in this case, even if the hologram sheets of the cards of a plurality of companies have the same design, the cards of the respective companies can be clearly distinguished from each other.

FIG. 6 is a sectional view taken along the line Y--Y in FIG.
6 illustrates a cross-sectional structure of the card of FIG. In FIG. 6, the card core is usually made of a hard or semi-hard vinyl chloride resin which is colored with a white pigment and made opaque.
Its size is about 86 mm long, about 54 mm wide and about 0.28 mm thick. In this card core, two cores are laminated to prevent warping of the card. A transparent layer made of a soft vinyl chloride resin and having a thickness of about 0.1 mm is laminated on one printed surface of the card core on which the common information is printed. In the illustrated example, the same vinyl chloride resin layer as described above is also laminated on the back surface of the core to prevent the card from warping.

In FIG. 6, the hologram sheet in the card of the present invention is transferred and formed on an oversheet.
On the surface of the hologram sheet, a pattern composed of a heat-meltable ink layer, which characterizes the present invention, is formed, and the entire surface of the card including the pattern is covered with a protective layer to improve abrasion resistance and the like. This protective layer may be formed by laminating a transparent film, may be formed by applying a transparent paint, or may be formed by a protective layer transfer method using a thermal transfer method. The same applies to the protective layer in the case of FIG.

FIG. 7 is a diagram for explaining another embodiment of the card of the present invention. In this example, a polyester resin (PE
In this example, T) is used as a card base material, and a magnetic recording layer and common information are formed on the back surface of a core made of a polyester resin, and these layers are covered with an oversheet. The formation of the pattern composed of the hologram sheet and the hot-melt ink layer and the operation and effect thereof are the same as those of the embodiment shown in FIGS.

It should be noted that the present invention is not limited to the contents of the above-described embodiments, and various modifications can be made within the scope of the present invention. For example, in the embodiment, the case where the re-transfer sheet is exclusively used as the means for forming the hot-melt ink has been described, but the step difference from the card base surface at the end of the hologram sheet is small, and transfer failure occurs. If it is difficult, or if the adhesiveness between the outermost layer of the hologram sheet and the hot-melt ink is high and peeling of the hot-melt ink after transfer is unlikely to occur, from the back side through a hot-transfer sheet containing hot-melt ink, Heat and press with a thermal head,
A pattern made of a hot-melt ink may be formed directly on the hologram sheet.

[0018]

According to the present invention, a required transfer pattern (for example, a logo mark) is printed and formed on a base sheet by a hot-melt transfer method, and the printed pattern is transferred to a desired area on the hologram sheet. Heat transfer to Therefore, for example, a company name, a logo mark, a trademark, a service mark, and the like can be easily formed on the surface of the hologram sheet bonded to the card surface, and the design of the hologram sheet of the card can be easily performed by a plurality of card issuing companies. Even if they are common, you can easily distinguish those issuers,
In addition, the forgery prevention and design of the card can be further improved.

[Brief description of the drawings]

FIG. 1 is a front view of a conventional card.

FIG. 2 is a diagram illustrating a retransfer sheet.

FIG. 3 is a front view of the card of the present invention.

FIG. 4 is a diagram illustrating another retransfer sheet.

FIG. 5 is a front view of a card according to another embodiment of the present invention.

FIG. 6 is a sectional view taken along line YY of FIG. 5;

FIG. 7 is a sectional view of a card according to another embodiment of the present invention.

Claims (7)

[Claims] 1. A card substrate, a hologram sheet or a diffraction grating sheet provided on at least a part of the surface of the card substrate, and a pattern formed of a hot-melt ink formed on at least a part of the surface of the sheet. A card comprising: 2. The card according to claim 1, wherein the pattern made of the heat-meltable ink is a pattern formed from a retransfer sheet. 3. The card according to claim 1, wherein the pattern made of the heat-meltable ink covers the underlying hologram sheet or diffraction grating sheet. 4. The card according to claim 1, wherein at least the pattern made of the hot-melt ink is covered with a transparent protective layer. 5. The card substrate according to claim 1, wherein the card base comprises a core made of a white vinyl chloride resin, a printed pattern formed on at least one surface thereof, and a transparent oversheet covering both surfaces of the core. Card. 6. The card base according to claim 1, wherein the card base comprises a core made of a white polyester resin, a printed pattern formed on at least one surface thereof, and a transparent oversheet covering both surfaces of the core. card. 7. The card according to claim 5, wherein a magnetic recording layer is provided on at least one surface of the card base.