JPH0812534B2 - Magnetic card - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic / holographic composite card, and more particularly to a magnetic / holographic integrated magnetic card having a visual effect and a mechanical information processing capability.

[0002]

2. Description of the Related Art Conventionally, a credit card or the like provided with a magnetic layer and having a machine information processing capability, or a magnetic layer and a hologram provided at different portions so as to have a machine information processing capability and a decorative function. Also excellent things were known.

[0003]

However, these have the drawbacks that they require the respective occupying areas in a limited card space and are restricted in designing the card.
Further, since the magnetic part is black, brown, etc., there is a defect that it is not beautiful in terms of decoration.

The present invention has been made in view of the above-mentioned conventional drawbacks. Since the magnetic layer and the hologram are integrated and the occupied area thereof can be reduced, it is advantageous in the card design and the colored layer is provided. If so, a card with a more colorful design can be obtained, and a magnetic card capable of machine information processing can be provided.

[0005]

That is, according to the present invention, a hologram expresses a hologram by reflecting incident light on an adhesive layer on a card, a magnetic recording layer enabling mechanical information processing, and a hologram forming portion. A gist of the present invention is a magnetic card in which a metal reflection layer that hides the magnetic recording layer and a hologram forming layer having the hologram forming portion are sequentially stacked.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A hologram-containing magnetic transfer sheet used in an embodiment of the magnetic card of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows the hologram-containing magnetic transfer sheet, and reference numeral 1 in the figure denotes a hologram-containing magnetic transfer sheet (hereinafter, simply referred to as a transfer sheet). Transfer sheet 1
Is formed by sequentially forming a protective layer 3, a hologram forming layer 4, a metal reflecting layer 5, a magnetic recording layer 6 and an adhesive layer 7 on one surface of the support 2. In the figure, numeral 8 is a hologram forming section.

Various plastic films can be used as the support 2 in the transfer sheet.
A polyester film having both tensile strength and heat resistance is preferable.

As the protective layer 3 in the transfer sheet, a mixture of polymethylmethacrylate resin and other thermoplastic resin such as vinyl chloride / vinyl acetate copolymer or nitrocellulose resin, or polymethylmethacrylate resin and polyethylene wax. And a mixture of a cellulose acetate resin and a thermosetting resin such as an epoxy resin, a phenol resin, a thermosetting acrylic resin or a melamine resin are preferred examples.

In the transfer sheet, the material of the hologram forming layer 4 is polyvinyl chloride, acrylic (eg, M
MA), polystyrene, thermoplastic resin such as polycarbonate, unsaturated polyester, melamine, epoxy, polyester (meth) acrylate, urethane (meth) acrylate, epoxy (meth) acrylate, polyether (meth) acrylate, polyol (meth) acrylate Those obtained by curing a thermosetting resin such as melamine (meth) acrylate and triazine acrylate, or a mixture of the above-mentioned thermoplastic resin and thermosetting resin can be used.

In the transfer sheet, as the material of the metal reflection layer 5, aluminum, silver, nickel, gold, copper,
Examples include tin, indium, and cobalt foils or vapor deposition layers, and aluminum foils or vapor deposition layers are particularly preferable.

In the transfer sheet, the magnetic recording layer 6 is formed by printing or applying a known magnetic paint, for example. As the magnetic paint, for example, a synthetic resin such as butyral resin, vinyl chloride / vinyl acetate copolymer, urethane resin, polyester resin, cellulose resin, acrylic resin, styrene / maleic acid copolymer resin is used as a binder resin, and if necessary, , A rubber-based resin such as nitrile rubber, and a urethane elastomer are added, and as magnetic materials, γ-Fe ₂ O ₃ , Co-containing Fe ₂ O ₃ , Fe ₃
O _4, barium ferrite, strontium ferrite, alone or an alloy of Co · Ni · Fe · Cr, other rare earth Co magnetic, surface active agents, silane coupling agents, plasticizers, waxes, silicone oils, carbon and other pigments It is possible to use those prepared by adding as needed and kneading with a three-roll, sand mill, ball mill or the like.

In addition to the above-mentioned coating type, the magnetic recording layer 6 may be of a metal thin film type formed by vapor deposition, especially oblique vapor deposition, which has been noticed in recent years because high density recording is possible.
For example, an oblique vapor deposition film of nickel or cobalt alone or an alloy thereof is a specific example.

As the adhesive layer 7 in the transfer sheet, a synthetic resin such as vinyl chloride / vinyl acetate copolymer having a good heat-sealing property can be used.

In the transfer sheet, the total thickness from the protective layer 3 to the metal reflective layer 5 is 2 to 10 μm, preferably 2 to 6 μm. When the thickness is in the range of 2 to 10 μm, it can be used for a magnetic card without hindering machine information processing.

There are various methods for forming the transfer sheet 1 having the above-mentioned structure. For example, after the protective layer 3 is coated on one surface of the support 2 by a conventionally known method, the hologram forming layer 4 is formed. The resin composition to be formed is applied and the hologram forming portion 8 is formed by a conventionally known method. Next, the metal reflection layer 5 is formed by the vacuum evaporation method, and then the magnetic recording layer 6 and the adhesive layer 7 are sequentially applied to form the transfer sheet 1.

When using the transfer sheet 1 configured as described above, for example, as shown in FIGS. 2 and 3, the transfer sheet 1 is cut into a required size and shape, and the card 9 is heated and melted, for example. The magnetic card of the present invention can be obtained by peeling the support 2 after forming the card 9 having the hologram forming portion 8 and the magnetic recording layer 6 after the sticking by attaching or the like.
In the formed magnetic card of the present invention, the hologram forming portion 8 and the magnetic recording layer 6 are integrally formed on the card 9, and the occupied area of the card surface can be reduced as necessary, and as a result, the card decoration The part that gives the character becomes large, and a card with great decorativeness can be obtained. Also, the magnetic recording layer 6
Since the hologram forming portion 8 is formed on the upper surface, the black color, the brown color, or the like of the magnetic recording layer 6 is hidden to obtain a beautiful card 9.

FIG. 4 shows another embodiment of the transfer sheet 1, in which a coloring layer 10 is provided between the protective layer 3 and the hologram forming layer 4. As the colored layer 10, a synthetic resin can be used, and it may be formed by adding a pigment to the resin to apply a colored resin composition, or by applying a printed film on a synthetic resin film. You may wear and form. When the transfer sheet 1 having the colored layer 10 formed thereon is used as a card or the like, a card with a colorful design can be obtained. Hereinafter, the present invention will be described in more detail with reference to specific examples.

Example 1 A polyester film having a thickness of 25 μm was used as a substrate,
On one side of this film, the following (1), (2), (3),
Using each composition of (4) and (5), a peeling protection layer (thickness 0.5 μm), a hologram forming layer (thickness 2.5 μm), a metal reflection layer (500 to 1000 μm), a magnetic recording layer (15).
μ) and a heat seal layer (5 μ) were sequentially applied to form a transfer sheet. The metal reflection layer was laminated by using a vacuum vapor deposition method instead of coating.

The laminated transfer sheet was heat-transferred to a 0.1 mm transparent hard vinyl chloride film, the support was removed, and then the opalescent and transparent hard vinyl chloride film were transferred to 0.7 mm.
Stacked to a thickness of ~ 0.8 mm, heated and pressed into a single plate, and punched to make a card size (54
By punching out a hologram,
I made a magnetic plastic card. The obtained card had a beautiful appearance and excellent machine information processing capability.

(1) Peelable protective layer composition Cellulose acetate resin: 5 parts by weight Methanol: 25 parts by weight MEK: ... 45 parts by weight Toluene ... 25 parts by weight Methylolated melamine resin ... 0.5 parts by weight Paratoluene sulfonic acid ... 0. 05 parts by weight (2) Hologram forming layer composition Acrylic resin: 40 parts by weight Melamine resin: 10 parts by weight Anon: 50 parts by weight MEK 50 parts by weight (3) Reflective layer Aluminum (4) Magnetic recording layer composition γ-Fe ₂ O ₃ ······· 30 parts by weight vinyl chloride / acetate copolymer ······ 3 parts by weight polyurethane elastomer・ ・ ・ ・ 20 parts by weight Toluene ・ ・ ・ ・ ・ ・ ・ ・ 15 parts by weight MEK ・ ・ ・ ・ ・ ・ ・ ・ ・ 15 parts by weight IPA ・ ・ ・ ・16 parts by weight (5) Adhesive layer composition, vinyl chloride / acetate copolymer 20 parts by weight Acrylic resin 10 Parts by weight Ethyl acetate: 20 parts by weight Toluene: 50 parts by weight

As described above, the magnetic card of the present invention expresses the hologram by reflecting the incident light on the adhesive layer, the magnetic recording layer enabling mechanical information processing, and the hologram forming portion on the card, Since the metal reflection layer that hides the magnetic recording layer and the hologram forming layer having the hologram forming portion are sequentially laminated, the hologram and the magnetic recording layer are integrally formed, and the surface of the card is formed. It has a beautiful hologram, can obtain the visual effect of the hologram, and can perform mechanical information processing.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a transfer sheet used in an embodiment of a magnetic card of the present invention.

FIG. 2 is a perspective view showing a state in which the transfer sheet is mounted on the card and the support is peeled off to manufacture the magnetic card of the present invention.

FIG. 3 is a vertical cross-sectional view of FIG.

FIG. 4 is a vertical sectional view showing a transfer sheet used in another embodiment of the magnetic card of the present invention.

[Explanation of symbols]

 1 Magnetic Transfer Sheet with Hologram 2 Support 3 Protective Layer 4 Hologram Forming Layer 5 Metal Reflective Layer 6 Magnetic Recording Layer 7 Adhesive Layer 8 Hologram Forming Section 9 Card

Claims (4)

[Claims] 1. An adhesive layer on a card, a magnetic recording layer that enables mechanical information processing, a metal reflecting layer that reflects a light incident on a hologram forming portion to develop a hologram and hides the magnetic recording layer. A magnetic card in which hologram forming layers having the hologram forming portion are sequentially stacked. 2. The magnetic card according to claim 1, wherein a protective layer is formed on the hologram forming layer. 3. The magnetic card according to claim 2, wherein a colored layer is formed between the hologram forming layer and the protective layer. 4. The total thickness from the protective layer to the metal reflective layer is 2
The magnetic card according to claim 2 or 3, wherein the magnetic card has a thickness of 10 µm.