JPH0516580A - Pachinko card for prize exchange - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a pachinko card for prize exchange, by which the information content of the card can be visually checked easily by just looking at the card. A pachinko card for prize exchange, comprising a base and an information storage section and a magnetic display section, wherein the information storage section comprises a magnetic tape or an IC memory, and the magnetic display section includes a substrate and And a recording layer containing microcapsules coated directly or through an intermediate layer,
The microcapsules contain a liquid and a magnetic powder suspended in the liquid and sensitive to a magnetic field,
Based on the information stored in the information storage section, it is possible to record and erase information that is visible in the recording layer of the magnetic display section.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pachinko card for exchanging a prize, and more particularly to a pachinko card for exchanging a prize, which is provided with a magnetic display unit capable of visually recording and erasing the number of pachinko balls acquired.

[0002]

2. Description of the Related Art In recent years, magnetic recording materials for recording information as magnetic information have been applied to various magnetic cards because of the fact that recording, reproduction and erasing can be done instantaneously and the recording state is extremely stable. It is being actively done. Such a magnetic card can be read by an information reading device by displaying the recorded content of the information on the display of the device. Among such magnetic cards, there is a pachinko card for prize exchange for temporarily recording the number of pachinko balls thrown at a pachinko game table on the card.

[0003]

However, as described above, the conventional card generally requires an information reading device in order to visually check the recorded contents of the information. Therefore, at any time, just by looking directly at the card,
Despite the user's desire to visually confirm the information content of the card, it can be said that there is no card that satisfies such a demand. Also, there are some cards that are said to be visually displayable,
This product has a problem that it cannot be displayed clearly and cannot be easily visually confirmed.

In view of such circumstances, the present invention has been devised, and the object of the present invention is to visually check the information content of the card by directly looking at the medium such as the card at any time. It is to provide a pachinko card for prize exchange that can be easily and surely confirmed.

[0005]

In order to solve the above problems, the present invention is a prize exchange pachinko card having an information storage section and a magnetic display section on a base, wherein the information storage section is a magnetic tape or The magnetic display unit is composed of an IC memory, and has a substrate and a recording layer containing microcapsules coated on the substrate directly or via an intermediate layer,
The microcapsules contain a liquid and a magnetic powder suspended in the liquid and sensitive to a magnetic field,
Based on the information stored in the information storage section, it is possible to record and erase information that is visible in the recording layer of the magnetic display section.

[0006]

When the perpendicular magnetic field φV is applied to the card of the present invention as shown in FIG.
2a are vertically aligned, so that the incident light Li from the outside is aligned to the card surface so that the incident light from the outside reaches the surface of the substrate 11 where it is reflected and reflected. Light Lo is generated. In this state, the color of the substrate 11 is visually recognized as reflected light.

On the other hand, as shown in FIG. 6, when a parallel magnetic field φP is applied to the card, the magnetic powder 22a in the microcapsule 22 is horizontally oriented, and incident light Li from the outside is reflected by the magnetic powder 22a, It becomes the reflected light Lo, and in this state, the color of the reflected light from the magnetic powder 22a is visually observed.

Therefore, if the state of FIG. 6 is set to the erased state,
A bright metallic color is visible from the outside. On the other hand, if the state of FIG. 5 is partially written by the vertical magnetic field φV, this portion is visually observed, for example, in black, and can be easily read from the outside.

Of course, it is possible to display by inverting the recording state and the erasing state.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A pachinko card for prize exchange according to the present invention will be described below in detail with reference to FIGS.

FIG. 1 is a perspective view showing an embodiment of a pachinko card 1 for prize exchange. The prize exchange pachinko card 1 of the present invention includes a base body 2 which is a base of the card, a magnetic display portion 10 incorporated in one plane of the base body 2, and an information storage portion 4 incorporated in one plane of the base body 2. And have.

The substrate 2 is, for example, a plate-like support, which is usually polypropylene, polyethylene, polyethylene terephthalate, vinyl chloride, AB.
It is formed from various plastics such as S, PBT, POM (polyacetal), various metals, various cardboards, and other materials.

The size of the base body 2 is not particularly limited, but is usually a size corresponding to a card that can be easily carried. The thickness is about 0.5 to 2.0 mm.

The magnetic display portion 10 incorporated in such a base body 2 has a laminated structure as shown in FIG. That is, the magnetic display unit 10 includes a substrate 11, a recording layer 20 provided on the substrate 11, and a protective layer 14 provided on the substrate 11 with an anchor layer 13 interposed therebetween.

The material of the substrate 11 is not particularly limited as long as it serves as a sheet-shaped support of various plastics, papers, metals, etc., but the substrate 11 itself is colored black or the surface of the substrate 11 is black. Colored ones are particularly preferable for making the display contrast clear. As a coloring means, for example, barium sulfate, microsilica, carbon black, or another pigment may be kneaded into various plastic raw materials and then molded into a sheet. Such a substrate 1
The thickness of 1 is usually about 50 to 200 μm.

The recording layer 20 provided on the substrate 11 has a plurality of microcapsules 22 and a binder 2.
4 is provided. Liquid 22b is contained in the microcapsule 22.
And the magnetic powder 22a are contained therein, and the magnetic powder 22a is in a state of being suspended in the vehicle.

The vehicle preferably contains a polar liquid, a hydrophobic liquid, and a thermoplastic resin. Examples of polar liquids include alcohols, ketones, esters, carboxylic acids, and amino compounds having polar groups such as a hydroxy group, a carbonyl group, a carboxy group, and an amino group. More specifically, esters such as aromatic acid esters, fatty acid esters, alcohol esters, and oxyacid esters are common, and dibutyl phthalate, octidiphenyl phosphate, dioctyl sebacate, triacetone, castor oil, etc. It is mentioned as a suitable example.

As the hydrophobic liquid, a low-volatile aliphatic compound,
Aromatic hydrocarbons and mixtures thereof which are commonly used in microcapsules for pressure-sensitive copying paper are preferred.
Any thermoplastic resin can be used as long as it can be stably dissolved in the mixed liquid of the polar liquid and the hydrophobic liquid. Among them, those which have good transparency during dissolution and which do not gel by an electric field, a magnetic field, light, heat, temperature, etc. and which do not adversely affect the microcapsule wall forming reaction are selected. . Preferable examples include polyvinyl butyral, polyvinyl acetate, alicyclic saturated hydrocarbon resin, polymethacrylic acid ester, acetyl cellulose, ethyl cellulose and the like.

The viscosity of the vehicle containing such components at room temperature is about 20 to 5000 cP. The viscosity mainly varies depending on the content of the thermoplastic resin, and the content of the thermoplastic resin is about 2 to 50 wt%. Also,
The content rate of the polar fluid is appropriately set in consideration of compatibility with the thermoplastic resin, stability of the magnetic powder, and the like.

As the magnetic powder, iron, nickel, iron-nickel, stainless steel such as iron-nickel-chromium, aluminum-cobalt alloy, samarium-cobalt alloy, etc. are used. The shape of the magnetic powder is preferably a so-called flake shape, and it is preferable that the thickness is as thin as possible and the ratio of the thickness to the particle size is large. The particle size is
It is set to about 3 to 15 μm. If the particle size becomes large, it will not be well housed in the capsule due to the relationship with the particle size of the capsule, and the reaction to external magnetism will be delayed. On the other hand, when the particle size is small, when magnetized, the difference in light reflectance between the horizontal direction and the vertical direction becomes small, and the contrast during recording deteriorates.

The coercive force of such magnetic powder may be appropriately selected depending on the use of the medium used, and is usually 50.
A material of 0 Oe (Oersted) or more is used. Further, from the viewpoint of improving the dispersibility of the magnetic powder in the vehicle and preventing the magnetic powder from aggregating with each other, the surface of the magnetic powder may be previously coated with various known organic materials. Also,
Aluminum or silver may be vapor-deposited on the surface of the magnetic powder in order to increase the reflectance of the magnetic powder.

Further, it is preferable to contain a dye or a pigment in the microcapsules in order to improve the contrast. Such microcapsules are disclosed, for example, in US Pat. No. 2,800,458 and British Patent 1142.
It is manufactured by various known methods disclosed in US Pat. No. 556, US Pat. No. 4,001,140 and the like. The volume average particle diameter of the microcapsules is preferably 10 to 100 μm. If this value is too small, the total amount of magnetic powder contained in the capsule will be small, and the contrast during recording will not be sufficient. On the contrary, if this value becomes too large, the recording layer surface becomes uneven, and the recorded image becomes non-uniform.

The binder used for coating such microcapsules is not particularly limited as long as it does not damage the walls of the microcapsules and adheres well to the surface of the substrate 11. More preferable specific examples include hydroxyethyl cellulose, carboxymethyl cellulose, polyvinyl alcohol, polyvinylpyrrolidone and the like.

The thickness of the recording layer 20 containing such microcapsules is usually 50 to 200 μm.
The protective layer 14 is provided on the recording layer 20 via the anchor layer 13.

As the anchor layer 13, polyester,
Materials such as acrylic and urethane are used. The anchor layer 13 has a thickness of about 5 to 20 μm.
As the protective layer 14, materials such as polyester and polycarbonate are used. The thickness of the protective layer 14 is about 12 to 100 μm.

The magnetic display portion 10 formed as described above.
It is preferable that the magnetic layer 30 is embedded under the magnetic layer 30 as shown in FIG. This magnetic layer is made of iron, nickel, stainless steel such as iron / nickel or iron / nickel / chrome, aluminum / cobalt alloy, samarium / cobalt alloy, or the like. The size of the magnetic display unit 10 is about the same as that of the magnetic display unit 10, and the thickness is 50 to 50.
It is about 200 μm.

In this embodiment, a magnetic stripe 4 is fixed along the longitudinal direction of the card as an information storage section incorporated in the lower plane of the base body 2. Based on the recorded information written on the magnetic stripe 4, visible information can be recorded and erased on the recording layer 20 of the magnetic display section 10. Instead of the magnetic stripe 4, it is also preferable to incorporate an IC memory in the base 2 as an information storage unit. In this case, the storage capacity is significantly increased. It should be noted that reading of information stored in the information storage unit and writing of visible information to the magnetic display unit are performed by a device (not shown).

Next, the present invention will be described in more detail with reference to specific experimental examples. <Experimental example 1> Preparation of dispersion liquid of flaky magnetic powder Flake magnetic powder 18.0 g -Fe / Ni alloy, Fe: Ni = 64: 36-Saturation magnetization θs129-Residual magnetic flux density θr65-Coercive force Hc 540 ・ Average particle size 9.2 μm ・ Specific surface area 0.096 m ² / g ・ Specific gravity 8.1 Ethyl cellulose (trade name; N-7, manufactured by Hercules Inc., USA) 7.5 g Dimethyl phthalate 36.5 g Phenyl xylyl Ethane (trade name; Nisseki Hysol SAS) 36.5 g While stirring this mixed solution, the mixture was heated to 90 ° C. to dissolve ethyl cellulose and a coloring dye.

Preparation of stock solution for encapsulation Gelatin 1.5 g Arabic gum 15 g Pure water 170 g was dissolved at 50 ° C. to prepare a stock solution for encapsulation.

Microcapsules were prepared using the stock solution for encapsulation and the dispersion liquid of the above magnetic powder. Preparation of microcapsules 80 g of the above-mentioned stock solution for encapsulation had a 2% NaOH aqueous solution.
Dispersion of the above magnetic powder 60 g while adding 7 g and stirring
Was gradually added and then emulsified until the particle size became 50 μm.

Next, 250 g of pure water at about 50 ° C. was added, and the pH of the system was adjusted with a 5% aqueous acetic acid solution while keeping the mixed system with this emulsion at 50 ° C. Then slowly cool 5
Add 4.2 g of 0% glutaraldehyde and continue to add 3
The stirring was continued for a while to harden the capsule wall to obtain a magnetic capsule slurry.

Then, the magnetic capsule slurry was passed through a mesh filter to make the particle size uniform (250 mesh filter remaining) to obtain a recording layer forming sample. Preparation of Card Sample First, as shown in FIG. 4, in a concave portion of a PVC resin substrate of 54 × 85.6 and 0.76 mm in thickness, which was previously housed in an IC memory and had a concave portion formed on the surface thereof. A magnetic sample 10 having a layered structure was laminated to produce a card sample (Sample 1).

A specific method for laminating the magnetic display portion 10 is as follows. A PET film is coated with a primer (anchor agent) in a predetermined amount by a coating machine, dried and wound.

Next, a predetermined amount of microcapsule ink is coated on the primer surface of this coated PET film with a coating machine and wound in the same manner. Sumi (black) ink is further coated on the primer and microcapsule coated one.

Similarly, the adhesive is finally coated to complete the lamination. Then, a magnetic layer 30 made of iron having a thickness of 16.4 × 75.6 and a thickness of 0.4 mm was buried under the magnetic display portion 10 of the sample 1 to prepare a sample 2.

Information writing (recording) and erasing tests were performed on these two samples. That is, by using a device provided with an information reading unit and a writing unit, predetermined information recorded in the IC memory is read,
After that, information was written on the display part of the sample. For writing, if a vertical magnetic field (650 Oe) is applied to a predetermined position,
The magnetic powder in the capsule of the recording layer was vertically oriented and turned black. When the difference in lightness between the bright background and the blackening was measured with a color difference meter (manufactured by Suga Test Instruments Co., Ltd.), it was 14
There was a difference of 20 points between Sample 2 and Sample 2, and it was confirmed that blackened recording was possible in a bright background, and both were confirmed to be put to practical use. In particular, it was also confirmed that the latter one has a magnetic layer, so that the gradation of recorded display becomes clearer.

[0037]

The pachinko card for prize exchange according to the present invention,
A card having an information storage section and a magnetic display section on a base body, wherein the information storage section is composed of a magnetic tape or an IC memory, and the magnetic display section is provided on a substrate and directly or via an intermediate layer thereon. And a recording layer containing a microcapsule coated thereon, wherein the microcapsule contains a liquid and a magnetic powder floating in the liquid and sensitive to a magnetic field. Based on the information stored in the information storage unit, it is possible to record and erase visible information on the recording layer of the magnetic display unit, so at any time, just by looking directly at the medium, The effect that the information content of the card can be easily and surely confirmed visually.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a pachinko card for prize exchange.

FIG. 2 is a front view of a pachinko card 1 for prize exchange.

3 is a sectional view taken along the line III-III of FIG.

FIG. 4 is a cross-sectional view showing a layer structure of a magnetic display unit.

FIG. 5 is a cross-sectional view showing the behavior of magnetic powder in a capsule when a vertical magnetic field is applied to the surface of a prize exchange pachinko card.

FIG. 6 is a cross-sectional view showing the behavior of magnetic powder in a capsule when a horizontal magnetic field is applied to the surface of a pachinko card for prize exchange.

[Explanation of symbols]

1 ... Pachinko card for prize exchange 4 ... Information storage 10 ... Magnetic display 20 ... Recording layer

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification code Internal reference number FI technical display location B42D 15/10 521 9111-2C G06K 19/077 G07F 7/08 G11B 5/70 7215-5D (72 ) Inventor Yoshiaki Hida 7 Enokimachi, Shinjuku-ku, Tokyo, Dai Nippon Printing Co., Ltd. (72) Inventor Masao Goue 7 Enoki-cho, Shinjuku-ku, Tokyo Dai Nippon Printing, Ltd.

Claims (3)

[Claims] 1. A pachinko card for prize exchange comprising an information storage section and a magnetic display section on a base body, wherein the information storage section comprises a magnetic tape or an IC memory, and the magnetic display section includes a substrate, A recording layer containing microcapsules coated directly or via an intermediate layer is provided on the liquid, and in the microcapsules, a liquid and a magnetic substance suspended in the liquid and sensitive to a magnetic field are provided. Powder and a pachinko for gift exchange, characterized in that, based on the information stored in the information storage section, visible information can be recorded and erased on the recording layer of the magnetic display section. card. 2. The pachinko card for prize exchange according to claim 1, wherein a magnetic material layer is embedded below the recording layer. 3. The magnetic layer is made of flakes of fine particles of iron, nickel, stainless steel such as iron-nickel or iron-nickel-chrome, aluminum-cobalt alloy, samarium-cobalt alloy, or the like. The pachinko card for prize exchange according to claim 2, wherein