JPH0342298A - Magnetic card and manufacture thereof - Google Patents

Abstract

PURPOSE:To conceal a magnetic part and make a hologram surface flush with a card surface by transferring a hologram transfer sheet consisting of a parting layer, a hologram formation layer, a metal evaporation layer and an adhesive layer laminated sequentially to the surface of a magnetic part formed on a base in advance, then concealing the magnetic part and applying a hologram for prevention of forgery. CONSTITUTION:A transfer sheet is formed by laminating a parting layer, a hologram formation layer, a hologram 6, a metal evaporation layer 5, a resin layer 4 and an adhesive layer 3 sequentially a support film 9 which is a base film. An image is trans ferred to the surface of a magnetic part 2 of a transfer medium by placing a hologram transfer sheet adhesive layer 3 over said magnetic part 2 and heating these part 2 and layer 3 placed together under pressure. After transfer, the support film is peeled off and a coloring layer 10 is laminated over the parting layer 8. It is possible to form a fine pattern which is difficult to form with a hot stamp as a pattern on the coloring layer 10 excepting the magnetic part area. After this, the surface of the coloring layer 10 is made flush with the surface of the parting layer 8 where a holo gram image is visible by heating under pressure. Thus the magnetic part which is a background can be concealed by the metal evaporation layer of the hologram trans fer sheet.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for manufacturing a hologram-equipped magnetic card having a magnetic section.

<Prior Art> In recent years, magnetic cards have been widely used in the distribution industry, and their use as credit cards has become particularly widespread. Along with this, fraudulent card usage is gradually increasing.
It has also become a social problem. In view of this current situation, in order to prevent card forgery, it has been proposed to completely hide the magnetic part with a colored layer, thereby creating a beautiful card design.

<Problem to be solved by the invention> By the way, in order to form a counterfeit prevention hologram on the magnetic recording layer of a magnetic credit card currently on the market, it is necessary to hide the magnetic tape or the entire magnetic layer. For example, you can perform anchor processing to overprint with silver ink that uses AI powder as a pigment, or
A method such as transferring a vapor-deposited transfer sheet is used, and a hologram to prevent counterfeiting is attached using an amplifier-down hot stamp machine. However, the complexity of this process and the amplifier aspect of the stamp surface of the hologram.
Problems with gender (unevenness) remain.

The present invention was made to solve the above-mentioned problems, and aims to provide a magnetic card in which the step of providing a hologram is included in the card manufacturing process, and the hologram is flush with the card surface. purpose.

<Means for Solving the Problems> In order to achieve the above object, the magnetic card of the present invention has a hologram formed by sequentially laminating a release layer, a hologram forming layer, a metal vapor deposition layer, and an adhesive layer on a base film. A magnetic card is proposed in which a transfer sheet is transferred onto a magnetic part formed in advance on a base, the magnetic part is hidden, and a hologram for preventing forgery is applied.

Effect> In the magnetic card of the present invention, the underlying magnetic part can be hidden by the metal vapor-deposited layer of the hologram transfer sheet, and the hologram surface is flush with the card surface, unlike a hot stamp, and the manufacturing process can be simplified. This is a significant reduction.

Furthermore, unlike hot stamps, holograms can be placed over a wide range of positions on the magnetic surface of the card, making it possible to achieve unprecedented effects in terms of design.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a sectional view showing an example of the configuration of a transfer target. A magnetic section 2 is provided on a base 1. The magnetic section 2 is usually constructed by embedding a magnetic tape on the base 1 by embedding it as shown in the figure.

The weir l is usually made of an opaque white polyvinyl chloride resin material and a transparent oversheet (printing is performed on the white polyvinyl chloride resin material on the opposite side from the R placement part 2, and The print is protected by an oversheet.

FIG. 2 is a sectional view showing an example of the structure of a transfer sheet.

A release layer 8 is placed on a support film 9 which is a base film.
, hologram forming layer 7, hologram 6, metal vapor deposition layer 5,
It is constructed by sequentially laminating resin N4 and contact layer 3.

As the support film 9, for example, polyester, acetate, polycarbonate, etc. are used.

The release layer 8 is mainly composed of, for example, acrylic resin, acrylic/vinyl resin, etc., and has a thickness of 0.5 to 2 μm. The hologram forming layer 7 is mainly composed of, for example, an acrylic resin having an acid value, a urethane resin, a cellulose acetate resin, a nitrocellulose resin, etc., and has a thickness of 0.5 to 2 μm. The metal vapor deposition layer 5 is a white nonmagnetic metal vapor deposition layer, and is provided by a vapor deposition method such as a vacuum vapor deposition method, a sputtering method, an ion blating method, etc.
The thickness is set to 0.03-0.08 μm. Examples of this type of metal include aluminum, tin, and oxides thereof. The resin layer 4 is mainly composed of, for example, acrylic resin, styrene resin, polyester resin, etc., and has a thickness of 0.5 to 2 μm.

The adhesive layer 3 is mainly composed of acrylic resin, vinyl resin, etc., and has a thickness of 0.5 to 2 μm.

Needless to say, if the adhesive layer itself has good adhesion to the metal vapor deposited layer, there is no need to provide the resin layer. Note that in consideration of magnetic properties, each layer on the support film 7 should be as thin as possible, and the total thickness should be 5 μm or less.

FIG. 3 is a sectional view showing an example of the configuration of a magnetic card according to the present invention. In FIG. 1, on the magnetic part 2 of the transferred object shown,
The hologram transfer sheets shown in FIG. 2 are stacked with the adhesive layer 3 in between and heated and pressed for transfer.

After transfer, the support film is peeled off. Furthermore, the mold release layer 8
A colored layer 10 is laminated thereon. @The pattern of the color layer 10 can be arbitrarily designed except for the magnetic area.0For example,
It is possible to form fine patterns that are difficult to form with hot stamping. Thereafter, the colored layer 10 and the release layer 8 on which the hologram image can be seen are surface-ized by heating and pressurizing, and a protective layer 1) is usually provided on the colored layer 10 before surface-forming.

Next, a specific example will be explained. First, the thickness is 0
．． Letters and marks are printed on one side of opaque white polyvinyl chloride resin material by UV offset printing or screen printing with ink made of vinyl chloride and acrylic resin, and then printed with 0.1 aw* transparent polyvinyl chloride resin. A magnetic tape was temporarily attached to one side of the sheet, and the sheet was laminated using a hot press.

On the other hand, on a polyester film with a thickness of 25 μm, an acrylic resin layer with a thickness of 0.7-1
The mold release layer was formed to a thickness of 9 m. Next, a urethane resin was applied by gravure coating to a thickness of 0°1)-1u to form a hologram forming layer. After drying and curing this, a hologram image matching the colored layer 10 to be provided later was provided by embossing with a hologram stamper at 150"C. Next, aluminum was applied to a thickness of 0.05 μm by vacuum evaporation. Then, by gravure coating, the thickness was 0.7-1.
A μm thick acrylic resin layer was provided to form resin N4. Next, by gravure coating, the thickness is 0.7-1 μm.
An acrylic resin layer was provided to form the adhesive layer 3. A hologram transfer sheet was thus obtained.

The obtained hologram transfer sheet was layered on the smooth magnetic part 2 side obtained by heat lamination via the contact layer 3 and transferred by heating and pressing with a heat press, and after peeling off the polyester film, a release layer 8 was applied. A colored layer 10 consisting of letters and marks as shown in Fig. 4 is provided on top by UV offset printing or screen printing with an ink made of vinyl chloride and acrylic resin, and then a salt-vinyl acetate resin is applied by gravure coating. Apply a protective layer with a thickness of 1.5 to 2 μm 1)
After forming and cutting into small pieces, the intended magnetic card was obtained.

In the magnetic card constructed as described above, since the metal vapor deposition layer was used, the IF region was completely hidden, and moreover, the hologram surface was flush with the card surface.

<Effects of the Invention> As explained above, in the R-card according to the present invention, the underlying magnetic part can be hidden by the metal vapor deposited layer of the hologram transfer sheet, and the hologram surface is different from a normal hot stamp. It becomes flush with the Ricard surface, significantly shortening the manufacturing process.Also, unlike the real stamp, the hologram can be placed over a wide area excluding the corner magnetic area, making it possible to achieve unprecedented effects in terms of design.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an example of the structure of a transfer target, FIG. 2 is a sectional view showing an example of the structure of a hologram transfer sheet, and FIG. 3 is a sectional view showing an example of the structure of a magnetic card according to the present invention. Fourth
The figure is a top view of a magnetic card according to the invention. DESCRIPTION OF SYMBOLS 1... Base body, 2... 6n air part, 3... Adhesive layer, 4
... resin layer, 5 ... metal vapor deposition layer, 6 ... hologram image, 7 ... hologram forming layer, 8 ... mold release layer,
9...Support film, lO...Colored layer, 1)...
・Protective layer, 12... colored area, 13... hologram area Applicant: Kazuo Suzuki, Representative, Toppan Printing Co., Ltd. Figure 1, Figure 2, Figure 3, Whistle 4UV!

Claims (2)

[Claims] (1) A magnetic card characterized in that a metal vapor deposition layer, a hologram layer, and a colored layer are sequentially laminated on a magnetic part formed on a base. (2) The above-mentioned magnetic card is obtained by transferring a hologram transfer sheet, which is formed by sequentially laminating a release layer, a hologram forming layer, a metal vapor deposited layer, and an adhesive layer, onto the magnetic part on a base film. Features: A manufacturing method for magnetic cards.