JP2000177282A - Printed matter and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply distinguish a card commonly used for a plurality of card issuing companies at the respective companies by providing hologram sheets or diffraction grating sheets on at least parts of a surface of a card base, and forming a transparent dye image on at least partial surface of the sheet. SOLUTION: Since dye images are transparent when the images are formed on at least part of a hologram sheet as seen from the surface, the hologram image on its background is seen through the dye image so that an excellent visual sense is exhibited by complicating both the images on an area where the hologram sheet and the dye image are superposed. In the case of manufacturing such a card, a transparent resin layer dyeable with a sublimable dye on the surface of the card with the hologram sheet, the dye image is formed on a dye receptive layer according to a sublimation thermal transfer system, and a transparent protective layer is laminated as needed. Individual information such as a name, a date of his birth, a face photograph and the like is printed on the receptive layer by the transfer system.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed matter, and more particularly, to a printed matter having a hologram sheet or a diffraction grating sheet (hereinafter simply referred to as a "hologram sheet") patterned into an arbitrary shape, and a transparent dye image. The present invention relates to a printed matter excellent in design and security, particularly to a card.

[0002]

2. Description of the Related Art Hitherto, a hologram sheet patterned for the purpose of preventing forgery and decoration is often attached to a printed matter that is easily forged, such as a cash voucher, securities, a gift certificate, a card, and the like. For example, in the case of a card, as shown in FIG. 6, the card is printed on at least one surface of a white core made of a vinyl chloride resin or a polyester resin by normal printing such as offset printing, gravure printing or silk screen printing. Information common to each issuing company, for example, company name, trademark, etc. are printed, and a hologram sheet is pasted for the purpose of preventing forgery of the card and decorating the card, and to protect these common information on the surface Are laminated, and individual information (not shown) such as an employee number, a name and a face photograph is formed. Hereinafter, the present invention will be described using a card as a representative example of a printed matter.

[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 unit price of the hologram sheet increases due to the complicated manufacturing 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 transparent dye image formed on at least a part of the surface of the card, and a method for producing the card I will provide a.

According to the present invention, by forming a transparent dye image so that at least a part thereof overlaps the hologram sheet surface of the card, the image of the hologram sheet can be recognized through the dye image, and the image of the hologram sheet can be recognized. The dye image overlaps with the dye image to provide an unprecedented aesthetic and design property. Since the dye image can be changed for each card, individual cards can be used even if the hologram sheet is common to many cards.

In a preferred embodiment of the present invention, a dye image (for example, a company name, a logo mark, a trademark, or the like) necessary for a thermal transfer image receiving sheet having a dye receiving layer formed on a release film is provided.
Service mark, face photograph, affiliation, personal name, etc.), and print it, and transfer this printed image to the desired area on the hologram sheet of the card again (hereinafter, this method is called re-transfer method). ), A dye image can be easily formed on the hologram sheet surface.

Therefore, the individual information as described above can be easily formed on the surface of the hologram sheet bonded to the card surface, and even if the design of the hologram sheet of the card is common to a plurality of card issuing companies. The issuers can be easily distinguished, and the forgery prevention and design of the card can be further improved.

[0010]

Next, the present invention will be described more specifically with reference to the embodiments shown in the drawings. The example shown in FIG. 6 is a cross-sectional view of one example of a conventional card. Various common information such as a company name is printed and formed on the surface of a card base by a normal printing method such as gravure printing or screen printing. Further, a hologram sheet which is displayed in a large size for the sake of explanation is stuck. 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 a 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.

According to the present invention, as shown in FIGS. 1 to 3, a transparent dye image is formed so as to overlap at least a part of the hologram sheet, and the hologram image is made visible through the dye image. . FIG. 1 is a view for explaining a cross section of the card of the present invention. The card of the present invention forms a transparent dye image so as to overlap at least a part of the hologram sheet of the conventional card with a hologram sheet shown in FIG. A transparent protective layer is formed on the surface of the dye receiving layer having a dye image.

FIG. 2 is a plan view of FIG. 1. As shown in FIG. 2, the card of the present invention has a dye image formed so as to overlap at least a part of the hologram sheet when viewed from the surface. I have. Since this dye image is transparent,
The hologram image in the background can be seen through the dye image, and therefore, in the area (a) where the hologram sheet and the dye image overlap, both images are combined to give an excellent visual sensation not seen before.

The dye image shown in FIG. 2 has two rectangles. The dye image is an arbitrary image such as a color photograph, a landscape, a logo, or the like, or an image such as a numeral such as a character or a symbol. Is also good. Note that the normal print (common information) shown in FIG. 2 is information common to a large number of sheets, and thus is formed in advance by normal print on at least one surface of the card core as shown in FIG. The individual information shown in FIG. 2 can be formed simultaneously with the rectangular dye image. The example shown in FIG. 3 is the same as the example shown in FIG. 1 except that the card core is a white polyethylene terephthalate film and a magnetic recording layer is formed on the back surface in the example shown in FIG.

Next, a method for manufacturing the card of the present invention will be described. The card of the present invention forms a transparent resin layer capable of dyeing a sublimable dye on the surface of the conventional card with a hologram sheet shown in FIG. 6, and forms a dye image on the dye receiving layer by a sublimation thermal transfer method. Although it can be obtained by laminating a transparent protective layer as required, a preferable method is a retransfer method. 4 and 5 illustrate a method of forming a dye image on a hologram sheet by a retransfer method.

In the retransfer method, first, as shown in FIG.
A protective layer made of a transparent and highly durable resin is formed on the surface of a conventionally known release film. As the protective layer, for example, a solution obtained by dissolving an acrylic resin, a polyester resin, an acetylcellulose-based resin, a polycarbonate resin, a thermosetting resin, an ultraviolet-curable resin, an electron beam-curable resin, or the like in a suitable solvent is used as a gravure coater or the like. Can be applied and dried by the general method described above, or can be formed on the release film surface by extrusion lamination. The thickness of this protective layer is not particularly limited, but is usually about 5 to 20 μm.

Next, a dye receiving layer is formed on the surface of the protective layer. This dye receiving layer is a resin capable of dyeing a sublimable dye,
For example, it is formed from a polyester resin, a vinyl chloride resin, an ethylene-vinyl acetate copolymer, an ethylene-vinyl chloride copolymer, or the like to a thickness of about 1 to 20 μm. This dye receiving layer is a suitable additive to the solution of the dye-dyeable resin as described above,
For example, it is formed by applying and drying a solution containing a release agent such as a silicone resin for preventing fusion with a thermal transfer sheet during image formation. The configuration of the thermal transfer image-receiving sheet used in the present invention in this manner is conventionally known.

Next, as shown in FIG. 4, necessary individual information such as a name, a date of birth, an affiliation, and a face photograph are printed and formed on the dye receiving layer of the thermal transfer image receiving sheet by a sublimation transfer method. The image forming method by the sublimation thermal transfer system is performed by a known thermal transfer sheet having a sublimable dye layer formed on the surface of a base film and a sublimation thermal transfer printer using a thermal head. The image to be formed may be monocolor, but is usually full color. The above-described thermal transfer sheet, thermal transfer printer and sublimation thermal transfer method may be conventionally known methods. However, since the image to be formed is later transferred to a card, it is necessary to form the image as a reverse image.

Next, as shown in FIG. 5, the image forming surface of the thermal transfer image receiving sheet on which the image has been formed is opposed to the surface of the card base on which the common information is formed, on which the hologram sheet is formed. After laminating and bonding both by heating and pressing by an appropriate method, the release film is peeled off. At this time, the dye image and the hologram sheet are overlapped at least partially.

The method of applying heat and pressure and the method of peeling the release film may be a method using a thermal head of a thermal transfer printer, a method using a hot stamper, a method using a heating roll, or other methods. This is a method using a rubber roll. The heating temperature at this time is suitably about 120 to 200 ° C. The adhesive of the present invention is obtained by peeling the release film by an appropriate method following the adhesion by heating and pressing.

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 above-described embodiment, individual information that does not overlap with the hologram sheet is also formed by the sublimation heat transfer method. However, such images as characters and symbols can be formed using a so-called hot-melt type heat transfer sheet. Good.

In the above embodiment, the image forming method by the retransfer method has been described. However, a transferable dye-receiving layer, a sublimable dye layer of at least three primary colors of yellow, magenta and cyan are formed on the surface of the base film. Using a composite thermal transfer sheet provided with a functional ink layer (mainly black) and a transferable protective layer in a plane sequence, a single thermal transfer printer transfers a dye receiving layer to a desired area of a card, prints a transparent dye image, The card of the present invention can also be prepared by sequentially printing black characters and transferring the protective layer.

In the above, the printed matter of the present invention has been described using a card as a representative example. However, the present invention is not limited to a card, and various kinds of cash vouchers, securities, gift certificates, boarding tickets, catalogs,
Naturally, it can be applied to many other printed matter such as a certificate of merit, a certificate, a high-quality printed matter, and the like.

[0023]

According to the present invention, a transparent dye image is formed so as to at least partially overlap the hologram sheet surface of the card, whereby the image of the hologram sheet can be recognized through the dye image. The image and the dye image overlap each other, and exhibit an unprecedented aesthetic appearance and design. Since the dye image can be changed for each card, individual cards can be used even if the hologram sheet is common to many cards.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a cross section of a card which is an example of a printed matter of the present invention.

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a diagram illustrating a cross section of a card which is another example of the present invention.

FIG. 4 is a diagram illustrating the production of a card of the present invention.

FIG. 5 is a diagram illustrating the production of the card of the present invention.

FIG. 6 is a diagram illustrating a cross section of a conventional card.

Claims (6)

[Claims] 1. A printing base comprising: a hologram sheet or a diffraction grating sheet provided on at least a part of the surface of the printing base; and a transparent dye image formed on at least a part of the surface of the sheet. Characterized printed matter. 2. The printed matter according to claim 1, wherein the underlying hologram sheet or diffraction grating sheet is visible through the transparent dye image. 3. The printed matter according to claim 1, wherein the transparent dye image is an image transferred from a retransfer sheet. 4. The card substrate according to claim 1, wherein the printing substrate is a card substrate comprising a card core, common information formed on at least one surface of the card core, and a transparent oversheet covering both surfaces of the core. Printed matter. 5. The printed matter according to claim 1, wherein the printed matter is a card, and a magnetic recording layer is provided on at least one surface of the card base. 6. A required dye image is printed on a thermal transfer image receiving sheet having a dye receiving layer formed on a release film, and the printed image is transferred to a desired area on a hologram sheet or diffraction grating sheet of a printing substrate. A method for producing a printed matter, wherein the printed matter is transferred to a printing medium.