JPH0880697A - Plastic card and method of manufacturing the same - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a plastic card having a function of visually and tactually confirming the usage status of the card, a manufacturing method thereof, and a usage method thereof. [Structure] A first oversheet 3 made of a transparent thermoplastic is bonded onto a core sheet 1 made of a white thermoplastic having a desired pattern printed on the four sides of opposing sheet sides with an adhesive agent 2. To do. Next, the second oversheet 5 is superposed on the non-adhesive surface of the core sheet 1 in the same manner as the first oversheet 3. Subsequently, the first oversheet 1 is provided with a first mirror-finished metal plate 6 having a concave portion or a through hole on the surface thereof,
The mirror-finished metal plate 7 is sandwiched so as to come into contact with it, and heated and pressure-bonded. As a result, a convex portion in which the fluid is sealed is formed at an arbitrary place on one surface of the plastic card on the first oversheet 1 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a bank cash card, various credit cards, various equipment control cards,
The present invention relates to a plastic card used for a medical card, an identification card, a telephone card, a prepaid card, a point card, and the like, and a manufacturing method and a usage method thereof.

[0002]

2. Description of the Related Art Currently, plastic cards are identification cards (ID cards) for credit transactions (shopping, cashing) represented by credit cards.
In addition, prepaid magnetic cards in the fields of transportation, communication and entertainment represented by magnetic commuter passes have become popular all over the world.
As this ID card, a magnetic stripe card in which a magnetic stripe is attached to the surface of the card is widely used. This magnetic stripe card is usually formed from a laminated body of hard vinyl chloride (PVC). That is, this magnetic stripe card includes a transparent PVC sheet called an oversheet having a thickness of about 0.1 mm, an oversheet with a magnetic stripe on which a magnetic layer is previously formed, and a center core having one or both sides printed. It is obtained by sandwiching a so-called white PVC sheet having a thickness of about 0.5 mm between mirror-finished metal plates, followed by thermocompression bonding and lamination.

On the other hand, a magnetic card usually has a thickness of 100 to
About 250 μm polyethylene terephthalate (PE
It is obtained by directly applying a magnetic paint onto a plastic film substrate such as T).

[0004]

As a balance display function of the above-mentioned plastic card, a method of punching a card base is generally popular. In fact, in the case of a magnetic card, since the card base is thin, it is possible to easily perforate it, and it is widely used in practice.

However, in the case of a magnetic stripe card, the card substrate thickness is about 0.3 times or more that of a magnetic card.
Since it is 76 mm, it is difficult to punch using a punching device for magnetic cards.

Even if a punching device dedicated to a magnetic stripe card is manufactured, it has not been put into practical use until now because the device itself becomes very expensive and large-scale.
In other words, the magnetic stripe card cannot display the usage status visually or tactilely by itself,
There was a possibility that it would not be possible to prevent fraudulent acts such as the transfer or sale of a used card by masquerading as unused. For this reason, magnetic stripe cards have not been put to practical use in the field of prepaid cards in which the balance display function of the card alone is required.

Therefore, a technical object of the present invention is to provide a plastic card having a function of visually and tactually confirming the usage status of the card, a method of manufacturing the same, and a method of using the same.

[0008]

According to the present invention, a plastic card comprising a laminate of a transparent thermoplastic oversheet and a white thermoplastic core sheet is provided on at least one side of the plastic card. There is obtained a plastic card characterized by comprising a convex portion in which a fluid is sealed in an arbitrary part thereof. Here, in the plastic card of the present invention, at least one of the transparent thermoplastic resin and the white thermoplastic resin is preferably a hard vinyl chloride resin, and the fluid contains air. preferable.

Further, in the plastic card of the present invention, it is preferable that the oversheet has first and second oversheets that are superposed on both sides of the core sheet. 1st and 2nd
It is preferable to have a magnetic stripe on a part of the surface of at least one of the oversheets.

Further, according to the present invention, the four sides of the sheet surface facing the first oversheet made of the transparent thermoplastic are bonded onto the core sheet made of the white thermoplastic having the desired pattern printed on the surface. After adhering through the agent, a second oversheet similar to the first oversheet is superposed on the non-adhesive surface of the core sheet, and the first oversheet has a recess or a through hole on the surface. The first mirror metal plate provided is sandwiched between the second oversheet and the second mirror metal plate so as to come into contact with each other, and is thermocompression bonded to one surface of the plastic card on the first oversheet side. A method of manufacturing a plastic card, characterized in that a convex portion in which a fluid is sealed is formed at an arbitrary position of Here, in the method for producing a plastic card of the present invention, it is preferable that at least one of the white thermoplastic resin and the transparent thermoplastic resin uses hard vinyl chloride, and the fluid is air. It is preferable. In the plastic card manufacturing method of the present invention, it is preferable that a magnetic stripe is formed on the surface of the second oversheet by thermal transfer.

Furthermore, according to the present invention, a method of using the plastic card is characterized in that the frequency of use and the number of times of use are recorded by crushing the convex portion after or after use. You can get how to use the card.

[0012]

In the present invention, it is possible to deal with the unused or used condition by detecting the presence or absence of the convex portion, which is provided on the front surface or the rear surface of the plastic card and has the air sealed inside. Furthermore, it is possible to deal with the balance by providing a plurality of these convex portions. That is, for example, a plunger (piston) mechanism provided inside a card reader / writer or the like can squeeze the convex portion to deal with the unused / used state. In addition, since the presence or absence of the convex portion can be discriminated by the tactile sensation, it is effective as a function for the blind.

In the present invention, the reason why the convex portion in which air is sealed is formed is not clear, but the present inventors consider as follows. That is, by adhering the four sides of the opposing surfaces of the oversheet and the core sheet with an adhesive, an appropriate fluid, such as air, is enclosed between the oversheet and the core sheet, and the air is heated and pressed ( During laminating), a convex portion is formed so as to concentrate between the over sheet and the core sheet facing the concave portion or the through hole provided on the surface of the mirror-finished metal plate.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a perspective view showing an adhesive structure of a PVC core sheet and a PVC oversheet in an embodiment 1 of the present invention, and FIG. 2 is a sectional view of the adhesive structure of FIG. As shown in FIGS. 1 and 2, after the desired pattern or letters are printed and the adhesive 2 is applied along the four sides of the core sheet 1 made of white PVC having a thickness of 0.56 mm, A first oversheet 3 of 0.1 mm transparent PVC was overlaid and adhered to the surface of this core sheet 1.

Next, as shown in FIG. 3, a transparent PV having a thickness of 0.1 mm and having a magnetic stripe 4 previously formed by thermal transfer.
The second oversheet 5 made of C is used as the core sheet 1
It is applied to the back of the
It is sandwiched from both sides by a first mirror-finished metal plate 6 having a recess of 1.0 mm and a second mirror-finished metal plate 7 having no recess on the surface, and the pressure is 25 kg / cm ² , and the temperature is at the start of pressurization. To a temperature of 150 ° C with a temperature gradient of 2 ° C / min, the temperature is maintained at 150 ° C for 20 minutes, and then cooled to obtain a plastic card laminate with a thickness of 0.76 mm as shown in Fig. 4. I got 11.

Next, the plastic card laminated body 11 thus obtained is measured to have a length of 85.6 mm and a width of 54 m.
punched out to a size of m, and a diameter of 5 m as shown in Fig. 5.
A sample of a plastic card 12 having a hemispherical projection 8 having a height of 1 mm and a height of 1 mm and air enclosed therein (a magnetic stripe on the back surface of the card is not shown) was obtained.

(Embodiment 2) In Embodiment 1, as shown in FIG. 6, instead of the first mirror surface metal plate 6, a diameter φ5 mm
In the same manner as in Example 1 except that the first mirror-finished metal plate 9 having the through-holes is used, the diameter φ5 mm, as shown in FIG.
A sample of a plastic card 13 having a hemispherical convex portion 8 having a height of 1.5 mm and air enclosed therein was prepared.

For each of the above samples, as shown in FIG. 8, the protrusion 8 was crushed by using a plunger mechanism having a needle at the tip, and an ultrasonic displacement sensor and an infrared displacement sensor were used. When the height of the convex portion 8 was detected, the presence or absence of the convex portion could be surely detected.

In the first and second embodiments of the present invention,
The shape of the convex portion 8 is a hemispherical shape, but it goes without saying that another shape may be used as long as the object of the present invention is achieved.

[0021]

As described above, according to the present invention, a plastic card having a function for visually and tactually confirming the usage status of the card, which has not been put into practical use, and a method for manufacturing the same. And a method of using the same can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view showing an adhesive structure of a PVC core sheet and a PVC oversheet in Example 1 of the present invention.

FIG. 2 is a cross-sectional view showing an adhesive structure between a PVC core sheet and a PVC oversheet in Example 1 of the present invention.

FIG. 3 is a sectional view showing a laminated structure of a PVC sheet in Example 1 of the present invention.

FIG. 4 is a cross-sectional view of a plastic card laminate according to the first embodiment of the present invention.

FIG. 5 is a perspective view of a plastic card according to the first embodiment of the present invention.

FIG. 6 is a sectional view showing a laminated structure of a PVC sheet in Example 2 of the present invention.

FIG. 7 is a perspective view of a plastic card according to a second embodiment of the present invention.

FIG. 8 is a schematic view showing a crushed hemispherical convex portion according to the second embodiment of the present invention.

[Explanation of symbols]

 1 White PVC Core Sheet 2 Adhesive 3 Transparent PVC Oversheet 4 Magnetic Stripe 5 Transparent PVC Oversheet 6,9 First Mirror Metal Plate 7 Second Mirror Metal Plate 8 Convex 10 Plunger Mechanism 11 Plastic Card Laminate 12 , 13 plastic cards

Claims (10)

[Claims] 1. A plastic card comprising a laminate of a transparent thermoplastic oversheet and a white thermoplastic thermoplastic core sheet, wherein a fluid is internally contained in any part of at least one of the front and back surfaces. A plastic card having a convex portion sealed in. 2. The plastic card according to claim 1, wherein at least one of the transparent thermoplastic resin and the white thermoplastic resin is a hard vinyl chloride resin. 3. The plastic card according to claim 1, wherein the fluid contains air. 4. The plastic card according to claim 1, wherein the oversheet is
The first laminated on both sides of the core sheet
And a plastic card having a second oversheet. 5. The plastic card according to claim 4, wherein a magnetic stripe is provided on a part of the surface of at least one of the first and second oversheets. 6. A four-sided sheet surface facing a first oversheet made of a transparent thermoplastic resin is adhered to a core sheet made of a white thermoplastic resin on the surface of which a desired pattern is printed, via an adhesive agent. Then, a second oversheet similar to the first oversheet is superposed on the non-adhesive surface of the core sheet, and the first oversheet has a first mirror surface having a recess or a through hole on the surface. The metal plate has a second over sheet on the second over sheet.
The mirror-finished metal plates of No. 2 are sandwiched so as to come into contact with each other, and they are heated and pressure-bonded to form a convex portion in which a fluid is sealed at an arbitrary position on one surface of the plastic card on the first oversheet side. Method for manufacturing plastic card. 7. The method of manufacturing a plastic card according to claim 6, wherein at least one of the white thermoplastic resin and the transparent thermoplastic resin is made of hard vinyl chloride. Production method. 8. The method for manufacturing a plastic card according to claim 6 or 7, wherein the fluid is air. 9. The method of manufacturing a plastic card according to claim 6, wherein a magnetic stripe is formed on the surface of the second oversheet by thermal transfer. Production method. 10. The method of using the plastic card according to claim 1, wherein the frequency of use and the number of times of use are recorded by crushing the convex portion after or after use. how to use.