JP2000011120A - Capacitive data card - Google Patents

Abstract

(57) [Summary] [PROBLEMS] In a capacitive data card, a user does not need a special reader / writer to read information.
An object of the present invention is to make it possible to confirm the contents of data and whether or not data has been updated. A first anchor layer (42) is provided on one surface of a substrate (41).
A conductive data pattern layer 43 for forming a capacitive data pattern and a protective layer 44 are sequentially provided. The conductive data pattern layer forms an input / output device having a closed circuit including a circuit in a card via an air capacitor. A capacitive data card for inputting and outputting data to and from an output device, wherein at least a second anchor layer 46, a reversible thermosensitive recording layer 47, and a protective layer 48 are provided on all or part of the other surface of the base material 41. Were sequentially provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a capacitive data card in which a fuse is built in a circuit of the card, and the state of the fuse indicates a data bit.

[0002]

2. Description of the Related Art As a prepaid card system of the capacity type, Japanese Patent No. It has been registered as 4280119. International application WO95 / 1, filed May 26, 1995
The prepaid card system described in the specification of US Pat. No. 4285 incorporates a fuse in the circuit of the capacitive data card, and when the fuse is in an intact state, the resistance is substantially increased. A system is shown in which bits of data are represented by states.

[0003] This capacitive data card is shown in FIG.
As shown in (1), the circuit 13 having a capacitor can be formed only when the card section 11 is integrated with the sensor section 12 formed on the reading device side.

The card unit 11 has a resistor R11 and a resistor R
Electrodes 11a and 11b forming a part of a capacitor to be connected and connected to each end of the power supply 11, and an electrode 12a forming a part of a capacitor connected to each terminal of the power supply 14 is provided in the sensor unit 12. , 12b, and when the card section 11 is set on the sensor section 12, a circuit having air capacitors 13a, 13b sandwiching air between the electrode sections is formed as shown.

[0005] In the circuit 13 formed in this manner, when a current is applied to the resistor R11 at a high voltage to burn it off,
The bit that has been used and has not been burned out is an unused bit, and a one-bit signal is provided by one closed circuit. Therefore, by forming an arbitrary number of closed circuits, a data card capable of storing a signal having a required number of digits can be formed.

[0006]

In the above-mentioned capacitive data card, the bit is changed from unused to used by burning off the resistor R11. Therefore, the reverse data cannot be easily reproduced. Therefore, although data reproduction is not easy, there is an advantage that various types of alteration, falsification, and unauthorized use are effective in today's widespread use of cards, but updating of data stored on the card is constant. There is a problem that the utility value cannot be fully exhibited.

In order to solve the above problem, a configuration having a magnetic storage area for storing magnetic data in a capacitive data card has been considered. This configuration is disclosed in
No. 12612, and JP-A-9-305721.

However, in such a capacitive data card and a capacitive data card using magnetic data in combination, a user needs to use a special reader / writer in order to read information, and to check the contents of the data and whether or not the data is updated. There is a problem that it is difficult to perform.
The present invention is to solve the above problem.

[0009]

According to the first aspect of the present invention, a first anchor layer, a conductive data pattern layer for forming a capacitive data pattern, and a protective layer are formed on at least one surface of a substrate. A capacitive data card for forming an input / output device in which a conductive data pattern layer forms a closed circuit including a circuit in the card via an air capacitor, and inputting / outputting data to / from the input / output device. A capacitive data card characterized in that at least a second anchor layer, a reversible thermosensitive recording layer, and a protective layer are sequentially provided on the whole or a part of the other surface of the base material.

According to a second aspect of the present invention, there is provided the capacitive data card according to the first aspect of the present invention, wherein the undercolor layer is provided between the base material and the second anchor layer. is there.

According to a third aspect of the present invention, a magnetic recording layer, a first anchor layer, a conductive data pattern layer for forming a capacitive data pattern, and a protective layer are sequentially provided on at least one surface of a substrate, A capacitive data card in which a conductive data pattern layer forms an input / output device that is a closed circuit including an internal circuit of the card via an air capacitor, and inputs and outputs data to and from the input / output device, A capacitive data card characterized in that at least a second anchor layer, a reversible thermosensitive recording layer, and a protective layer are sequentially provided on the whole or a part of the other surface of the base material.

According to a fourth aspect of the present invention, there is provided the capacitive data card according to the third aspect of the present invention, wherein a base coloring layer is provided between the base material and the second anchor layer. is there.

According to a fifth aspect of the present invention, there is provided a semiconductor device comprising: a first anchor layer, a conductive data pattern layer for forming a capacitive data pattern, and a protective layer sequentially provided on at least one side of a substrate; A capacitive data card in which a layer forms an input / output device that forms a closed circuit including the circuit in the card via an air capacitor, and inputs and outputs data to and from the input / output device, On the other surface, a printing layer is provided as necessary, a transparent second anchor layer, a reversible thermosensitive recording layer is provided on the entire or a part of the conductive data pattern layer and the protective layer, and the conductive data pattern is provided. A capacitive data card, wherein the layer functions as a base coloring layer for the reversible thermosensitive recording layer.

According to a sixth aspect of the present invention, there is provided an electro-optical device comprising a first anchor layer, a conductive data pattern layer for forming a capacitive data pattern, and a protective layer sequentially provided on at least one surface of the base material. A capacitive data card in which a layer forms an input / output device that forms a closed circuit including the circuit in the card via an air capacitor, and inputs and outputs data to and from the input / output device, At least a magnetic recording layer, a concealing layer, and a printing layer, if necessary, are sequentially provided on the whole or part of the other surface, and a transparent second anchor layer is formed on the whole or part of the conductive data pattern layer and the protective layer. A reversible thermosensitive recording layer is sequentially provided, and the conductive data pattern layer acts as a base coloring layer for the reversible thermosensitive recording layer. Is a card.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A capacity data card according to the present invention will be described in detail below with reference to the embodiments shown in FIGS.

FIG. 1 is a plan view of a capacitive data recording section 20 formed in a pattern. An anchor layer (or a first anchor layer) is provided on a base material 31, and a conductive layer is entirely formed on the anchor layer. The non-conductive portion 35 is formed in a pattern by removing the conductive layer 32 in a pattern including the peripheral (margin) portion.
In the region other than 5, the capacitor electrode portion 2 constituting the conductive data pattern layer 36 on the card side by the conductive layer 32 is provided.
1, 22 and a fuse 33 (corresponding to the resistor R11 shown in FIG. 14) exhibiting a high resistance value of a pattern whose width is much smaller than that of the fuse are formed in a pattern.

The conductive layer 32 has a surface resistance of 10
By forming the conductive film so as to have a resistance of about 60 Ω / □ (square), favorable electrode portions 21 and 22 and a fuse portion 33 can be formed. Note that, in the present invention, the pattern shape of the capacitive data recording unit 20 is particularly shown in FIG.
However, it is not limited to the shape shown in FIG.

The electrode portions 21 are regularly arranged as shown in FIG.
An array of small rectangular blocks (for example,
Block) forming area, which is a small rectangular block electrode
Part P _0.0~ P_0.9, P_0.A~ P_0.F, P_1.0~ P_1.9,
P_1.A~ P_1.F, P_2.0~ P _2.9, P_2.A~ P_2.F, P
_3.0~ P_3.9, P_3.A~ P_3.F, P_4.0~ P_4.9, P
_4.A~ P_4.F, P_5.0~ P_5.9, P_5.A~ P_5.FIs sideways
Are arranged regularly in the vertical and vertical directions.

The electrode portions 22 are paired with each other as shown in FIG.
The electrode part P facing_0.0And P_0.1, Electrode part P_0.2And P
_0.3, Electrode part P_0.4And P_0.5, ..., electrode part P_0.EWhen
P_0.FAnd the formation region of the common electrode formed between
A continuous line-shaped common electrode portion P that is long in the horizontal direction₀Is formed
ing. Similarly, the electrode portion P_1.0And P_1.1, Electrode part P
_1.2And P_1.3, Electrode part P_1.4And P_1.5, ..., electrode part
P_1.EAnd P_1.FBetween the continuous line-like
Common electrode part P₁Are formed, and so on.
Continuous line-shaped common electrode part P_Two~ P_FiveAre formed.

The individual electrode portions P _{0.0 to} P _5.F
Via the fuse portion 33 formed by a conductive film having a width, respectively connected individual common electrode P ₀ to P ₅ electrically.

FIG. 2 is a partially enlarged plan view of a portion Y in FIG. 1, in which electrode portions P _0.2 and P _0.3 are formed with a common electrode portion P ₀ interposed therebetween, and a narrow width fuse portion 33 (corresponding to a resistor R11) is formed. Part) is the electrode part P _0.2 , the common electrode part P ₀ , and the electrode part P
_0.3 and is interposed between the common electrode portion P _0.

The individual electrode portions P _{0.0 to} P shown in FIG.
_5.F is the opposite electrode 12a and the predetermined distance to form a capacitor 13a in the sensor (writing head) of the input-output device 12 to face each other with a d shown in FIG. 14, each of the common electrode P ₀ to P ₅ are adapted to be opposed to each other the counter electrode 12b and the predetermined distance to form a capacitor 13b in the sensor (writing head) of the input-output device 12 shown in FIG. 10 at a d.

First, in the capacitive data card according to the first aspect of the present invention, as shown in the side sectional view of FIG. A conductive data pattern layer 43 for forming a capacitive data pattern is provided on 42, and a protective layer 44 for protecting the pattern layer 43 is sequentially provided on the conductive data pattern layer 43. The conductive data pattern layer 43 forms an input / output device that forms a closed circuit including the circuit in the card via an air capacitor, and has a capacity to input and output data to and from the input / output device. It becomes a data pattern.
Further, a transparent or opaque second anchor layer 46 is provided on the whole or a part of the other surface of the card base 41, and a reversible thermosensitive recording layer 47 is provided on the second anchor layer 46,
A transparent protective layer 48 is sequentially provided on the reversible thermosensitive recording layer 47.

Next, the capacitive data card according to the second aspect of the present invention is the capacitive data card according to the first aspect of the present invention, as shown in the sectional side view of FIG.
On the whole or a part of the other surface of the card base material 41,
A coloring layer 45 (or a light reflecting layer) is provided, a transparent second anchor layer 46 is provided on the coloring layer 45, and a reversible thermosensitive recording layer 47 is provided on the second anchor layer 46; The transparent protective layer 48 is sequentially provided on the thermosensitive recording layer 47.

Next, in the capacitive data card according to the third aspect of the present invention, as shown in the side sectional view of FIG.
9 is provided with a first anchor layer 42,
A conductive data pattern layer 43 for forming a capacitive data pattern is provided thereon, and a protective layer 44 is sequentially provided on the conductive data pattern layer 43. The conductive data pattern layer 43 forms an input / output device that forms a closed circuit including the circuit in the card via an air capacitor, and has a capacity to input and output data to and from the input / output device. It becomes a data pattern. Further, a transparent or opaque second anchor layer 46 is provided on the whole or a part of the other surface of the card base material 41, and the reversible thermosensitive recording layer 4 is provided on the second anchor layer 46.
7 and a transparent protective layer 48 on the reversible thermosensitive recording layer 47.
Are sequentially provided.

Next, a capacitive data card according to a fourth aspect of the present invention is the capacitive data card according to the third aspect of the present invention. 45 (or a light reflecting layer), and a transparent second anchor layer 46 is provided on the colored layer 45.
And a reversible thermosensitive recording layer 47 is provided on the second anchor layer 46, and the transparent protective layer 4 is provided on the reversible thermosensitive recording layer 47.
8 are sequentially provided.

In the capacitive data card according to the fifth aspect of the present invention, as shown in the side sectional view of FIG. 5, a first anchor layer 42 is provided on one side of a card base material 41, and
A conductive data pattern layer 43 for forming a capacitive data pattern is provided on the anchor layer 42, and a second anchor layer 46 is provided on the conductive data pattern layer 43. A reversible sensor is provided on the second anchor layer 46. Thermal recording layer 47
, A transparent protective layer 48 is sequentially provided on the reversible thermosensitive recording layer 47, and a print layer 50 is provided on the other surface of the card base 41 as necessary. The conductive data pattern layer 43 forms a closed input / output device including a circuit inside the card via an air capacitor, and has a capacitive data pattern for inputting and outputting data to and from the input / output device. It becomes. Further, in the capacitive data card according to the fifth aspect of the present invention, a transparent second anchor layer 46 may be formed on the conductive data pattern layer 43.
By laminating the reversible thermosensitive recording layer 47 through
The conductive data pattern layer 43 functions as a base coloring layer for the reversible thermosensitive recording layer 47.

As shown in the side sectional view of FIG. 6, a first anchor layer 42 is provided on one side of a card base material 41, and the first anchor layer 42 is provided. A conductive data pattern layer 43 for forming a capacitive data pattern is provided thereon, a transparent second anchor layer 46 is provided on the conductive data pattern layer 43, and a reversible thermosensitive recording is formed on the second anchor layer 46. Layer 4
7 and a transparent protective layer 48 on the reversible thermosensitive recording layer 47.
Are sequentially provided. Conductive data pattern layer 43
Is a capacitive data pattern for forming an input / output device that forms a closed circuit including the circuit in the card via an air capacitor, and for inputting and outputting data to and from the input / output device. Further, in the capacitive data card according to the invention according to claim 6, a magnetic recording layer 49 is provided on the whole or part of the other surface of the card base material 41, and a concealing layer 51 is provided on the magnetic recording layer 49. The printing layer 50 is sequentially provided on the concealing layer 51 as needed. The capacitive data card of the invention according to claim 6 is characterized in that a reversible thermosensitive recording layer 47 is laminated on the conductive data pattern layer 43 with a second anchor layer 46 interposed therebetween. 43 functions as a base coloring layer for the reversible thermosensitive recording layer 47.

The card base material 41 is made of polyethylene terephthalate (PE) generally used for prepaid cards.
T) In addition to resins, synthetic resins such as polyvinyl chloride resin, polyester resin, polycarbonate resin, polymethacrylic resin, and polystyrene resin, and glass are used.

The magnetic recording layer 49 is made of, for example, γ-Fe
₂ O ₃ , Co-coated γ-Fe ₂ O ₃ , Fe ₃ O ₄ , CrO
₂ , Fe, Fe-Cr, Fe-Co, Co-Cr, Co
-A magnetic paint composed of a magnetic fine particle dispersion such as Ni, MnAl, Ba ferrite and Sr ferrite is applied and provided.
Generally, a magnetic recording medium used as a magnetic recording medium such as a prepaid card has a holding power of 300 to 3000 (Oe) and a residual magnetic flux of 1.0 to 2.0 (Maxwell / cm).

The printing layer 50 is usually made of ink, and in particular, a layer having good adhesion to the lower layer can be used. The method of forming the printing layer 50 can be appropriately selected according to the application by using a printing method such as a conventionally known gravure printing method, screen printing method, and offset printing method.

The concealing layer 51 conceals the brown or black color tone of the magnetic paint of the magnetic recording layer 49, and is provided to conceal the existence of the magnetic recording layer 49 or on the upper layer thereof. This is for preventing the design of the printing layer 50 from being disturbed.

The concealing layer 51 is usually made of an ink. For example, a pigment such as titanium oxide, magnesium oxide, barium sulfate or the like is mixed with an acrylic resin, a polyester resin, a polyurethane resin or an epoxy resin. There is a printing method such as a gravure printing method, a screen printing method, and an offset printing method which are conventionally known, and can be appropriately selected according to the application.

The first anchor layer 42 has a lower card base material 41 and an upper conductive data pattern layer 43, as shown in FIGS. 3, 5 and 6, and a card shown in FIG. As described above, the adhesion between the lower magnetic recording layer 49 and the upper conductive data pattern layer 43 is improved, the film thickness of the conductive data pattern layer 43 is stabilized, and the conductivity ( (Or resistance value). Also, the second anchor layer 4
Numeral 6 improves the adhesion between the coloring layer 45 and the reversible thermosensitive recording layer 47 as in the cards shown in FIGS.

The first anchor layer 42 and the second anchor layer 46 are made of, for example, an acrylic resin, a polyester resin, a polyurethane resin, or the like. There is a printing method such as a printing method, and it can be appropriately selected according to the application.

The conductive data pattern layer 43 is used as an electrode for forming capacitive data, and is made of, for example, C, Al, Sn, Zn, Fe, A having electric conductivity.
g, Au, Cu, and the like. The method for forming this layer can be appropriately selected according to the application in which the film can be formed by a conventionally known vacuum evaporation method, sputtering method, or the like.

The conductive data pattern layer 43 is a conductive pattern as shown in FIGS. 1 and 2, and is formed on the entire surface of the card base material 41 by an evaporation method such as a vacuum evaporation method or a sputtering method. Is formed by dissolving the non-conductive portion 35 and the peripheral blank portion in a negative pattern shape with respect to the conductive data pattern layer by a thermal laser beam irradiation method. Alternatively, in addition to the thermal laser beam irradiation method, the conductive layer may be formed by etching or destructively removing the conductive data pattern layer in a negative pattern by an etching method or a blade-type pressing method.

The conductive layer for forming the conductive data pattern layer 43 has a resistance value (conductivity) of 10 to 60.
A good fuse can be formed by forming a film to have a resistance of Ω / □.

The coloring layer 45 improves the contrast between the image portion (printed portion) and the non-image portion (non-printed portion) of the image data visually displayed by the reversible thermosensitive recording layer 47.
It can be provided as needed. The coloring layer 45
In addition to improving the contrast between the printed portion and the non-printed portion, a heat insulating effect can be provided, and a configuration excellent in printing color at low energy can be obtained.

The coloring layer 45 includes a coloring pigment in a polymer material,
An ink in which a dye or the like is dispersed and dissolved can be provided to a film thickness of about 0.5 μm to 5 μm by a printing method or a coating method. Polymer materials include polyvinyl chloride, polyvinyl chloride acetate copolymer, polyester resin,
A polyethylene resin, an acrylic resin, or the like is used alone or in combination, and preferably, polyvinyl chloride, a polyvinyl chloride vinyl acetate copolymer, or a polyester resin is used.

The coloring layer 45 can be formed by a vacuum deposition method, a sputtering method, an ion plating method, a lamination method or the like in addition to the printing method and the coating method. The thickness can be set to about 0.03 μm to 0.08 μm by a method, and about 0.5 μm to 2 μm by a lamination method. As a material applicable by the thin film forming method, for example, Al, Cr, Sn, Ni, Cu or the like is used. Further, the color tone can be adjusted by using the materials used in combination.

The protective layer 44 is provided to protect the conductive data pattern layer 43, which is a capacitive data pattern, from trauma and damage when the card is carried. 2 μm to 5
It can be provided on the order of μm.

The protective layer 44 is formed of a resin such as an acrylic resin, a urethane resin, a vinyl chloride resin-vinyl acetate copolymer resin, a polyester resin, a melamine resin, an epoxy resin, and a polystyrene resin. A conventionally known thermosetting resin such as a polyimide resin or an ultraviolet or electron beam curable resin is used alone or in combination.

The transparent protective layer 48 comprises a reversible thermosensitive recording layer 47.
It is applied to protect each of the following layers and has a thickness of 0.2 μm to 5 μm by a printing method, a coating method, or the like.
m.

Further, in the transparent protective layer 48, in order to improve resistance and prevent sticking, a curing agent for crosslinking the resin, waxes such as polyethylene wax, carnauba wax and silicon wax, or calcium carbonate,
An extender such as zinc stearate, silica, alumina, and talc, and fats and oils such as silicone fats and oils can be added to the extent that transparency is not impaired. Further, when image data is printed / erased on the reversible thermosensitive recording layer 47 with a thermal head, a hollow filler is used to control heat conductivity.
Beads and the like can be added as long as the transparency is not impaired. In addition, as a method for forming the transparent protective layer 48, there are conventionally known printing methods such as a gravure printing method, a screen printing method, and an offset printing method, which can be appropriately selected according to the application.

The reversible thermosensitive recording layer 47 is composed of a polymer / low-molecular type in which cloudiness and transparency are reversibly changed by a change in the crystal state of an organic low-molecular substance dispersed in a matrix of a resin matrix, and a resin matrix. Any of the leuco compound types, which are thermochromic compositions utilizing a reversible color reaction between an electron-donating color-forming compound and an electron-accepting compound dispersed in, can be used. , A printing method, a coating method, or the like, and a film thickness of about 4 μm to 20 μm.

Examples of the organic low-molecular substance dispersed in the high-molecular / low-molecular type heat-sensitive recording layer include fatty acids, fatty acid derivatives and alicyclic organic acids. Or dicarboxylic acid, myristic acid, pentadecanoic acid, palmitic acid, heptadecanoic acid, stearic acid, nanodecanoic acid, arachiic acid, behenic acid, lignoceric acid, serotinic acid, montanic acid, melicic acid, etc., and unsaturated fatty acids. Specific examples include oleic acid, elaidic acid, linoleic acid, sorbic acid, stearolic acid and the like. still,
The fatty acid, fatty acid derivative or alicyclic organic acid is not limited to these, and one or more of these can be used as a mixture. Further, as the resin base material to be used, an acrylic resin, a urethane resin, a polyester resin, a cellulose acetate resin, a nitrocellulose resin, a vinyl chloride resin, a vinyl acetate resin alone, mixed or copolymerized Used. On the other hand, in order to control the clearing temperature range of the reversible thermosensitive recording section, 0.1% to 20% by weight of a resin plasticizer, a high boiling point solvent and the like can be added to the resin base material. Further, in order to improve the repetitive print erasure resistance of the reversible thermosensitive recording section, a curing agent or a cross-linking agent for three-dimensionally cross-linking the resin base material should be used in an amount of 0.5% to 1%.
0% by weight can be added.

The leuco compound type is a thermochromic composition utilizing a reversible color reaction between a leuco compound dispersed in a matrix of a resin matrix and a developing colorant. The thickness can be set to about 4 μm to 20 μm. As the usually colorless to light-colored leuco compound used in the heat-sensitive recording layer, typically represented by pressure-sensitive recording paper, heat-sensitive recording paper, photosensitive recording paper, energized heat-sensitive recording paper, those used for heat-sensitive transfer paper, Xanthenes, spiropyrans, lactones, fluorans, sultones, and the like having a partial skeleton such as lactone, sultone, and spiropyran are used, but are not particularly limited. As a specific example, 3,3-bis (p-dimethylaminophenyl)-
6-dimethylaminophthalide, 3,3-bis (p-dimethylaminophenyl) phthalide, 3,3-bis (1,2
-Dimethylindol-3-yl) -6-dimethylaminophthalide, 3-dimethylamino-6-chloro-7-methylfluoran, 3,3-bis (9-ethylcarbazol-3-yl-5) -dimethyl Aminophthalide, 3-dimethylamino-7-dibenzylaminofluoran, 3-
Diethylamino-7-chlorofluoran, 3-diethylamino-6-methyl-7-anilinofluoran, 3-piperidino-6-methyl-7-anilinofluoran, 3-
(N-ethyl-n-nitrile) amino-6-methyl-7
-Anilinofluoran, 3-dibutylamino-6-methyl-7-anilinofluoran, 3- (n-ethyl-n-
Tetrahydrofuryl) amino-6-methyl-7-anilinofluoran and the like can be used alone or as a mixture.

On the other hand, the color-developing agent is a compound having both a color-developing effect and a color-decreasing effect on a leuco compound by reversibly releasing protons under the action of thermal energy. That is,
It has both an acidic group consisting of a phenolic hydroxyl group or a carboxyl group and a basic group consisting of an amino group, and becomes acidic or basic due to a difference in heat energy, and causes the leuco compound to develop or decolor. The basic group may be present as a functional group or may be present as a part of a compound.

Further, a developing colorant having either a functional group of an acidic group or a basic group of the developing colorant includes, for example,
Aminobenzoic acid, o-aminobenzoic acid, 4-amino-3
-Methylbenzoic acid, 3-amino-4-methylbenzoic acid,
2-amino-5-ethylbenzoic acid, 3-amino-4-butylbenzoic acid, 4-amino-3-methoxybenzoic acid, 3
-Amino-4-ethoxybenzoic acid, 2-amino-5-chlorobenzoic acid, 4-amino-3-bromobenzoic acid, 2-
Amino-2-nitrobenzoic acid, 4-amino-3-nitrobenzoic acid, 3-amino-4-nitrilebenzoic acid, aminosalicylic acid, diaminobenzoic acid, 2-methyl-5-aminonaphthoic acid, 3-ethyl-4 -Aminonaphthoic acid, nicotinic acid, isonicotinic acid, 2-methylnicotinic acid, 6
-Chloronicotinic acid and the like.

The compound having a basic group as a part of the salt compound includes a salt or a complex salt of a compound having a phenolic hydroxyl group or a carboxyl group and a compound having an amino group, such as hydroxybenzoic acid and hydroxysalicylic acid. And salts or complexes of an acid such as gallic acid or bisphenolacetic acid with a base such as aliphatic amines, phenylalkylamines or triallylalkylamines.

Specific examples thereof include p-hydroxybenzoic acid-alkylamine salt, p-hydroxybenzoic acid-phenylalkylamine salt, m-hydroxybenzoic acid-alkylamine salt, p-hydroxybenzoic acid methyl-alkylamine salt , P-hydroxybenzoic acid stearyl-alkylamine salt, bisphenolacetic acid-alkylamine, bisphenolacetic acid octyl-alkylamine salt and the like, and these are used alone or in combination.

The leuco compound and the color developing agent are not limited to these, and one or more of these may be used as a mixture. As the resin base material to be used, resins such as acrylic resin, polyester resin, polyurethane resin, polyurea, melamine, polycarbonate, polyamide, polyvinylpyrrolidone, polyvinyl alcohol, polyvinyl chloride, polyvinyl butyral, etc. can be used alone, mixed or mixed. A polymer is used.

Further, in order to improve the repetitive print erasure resistance of the reversible thermosensitive recording section, a curing agent or a cross-linking agent for three-dimensional crosslinking corresponding to the resin base material is added in an amount of 0.5% to 10% by weight based on the resin base material. Parts can be added. Further, an ultraviolet absorber having relatively high compatibility with the leuco compound can be added to improve the resistance.

[0055]

Next, a specific embodiment of the capacitive data card of the present invention will be described in detail below.

<Example 1> An anchor coating agent was applied on one side of a card substrate and dried to provide a first anchor layer. Subsequently, a metal material having a purity of 99.99% or more was formed on the entire surface of the card substrate from the first anchor layer to a thickness of about 160 ° by a vacuum evaporation method to form a conductive layer. Subsequently, a portion corresponding to the non-conductive portion of the conductive layer is thermally melted in a pattern by a YAG laser,
A conductive data pattern layer having a capacitive data pattern as shown in FIG. 1 was formed. Subsequently, a resin layer was applied on the entire surface of the card base material from above the conductive data pattern layer to form a protective layer for protecting the conductive data pattern layer. Next, a printing ink was applied to the entire surface or a portion on the other surface of the card substrate by a gravure printing method at about 2 μm, and dried with hot air at 110 ° C. for about 40 seconds to form a colored layer. Subsequently, an anchor coat agent was applied on the colored layer and dried to form a second anchor layer. Subsequently, a reversible thermosensitive recording agent is coated on the second anchor layer by a gravure printing method at about 5 μm, and heated at 70 ° C. for about 9 μm.
After drying for 0 second, a reversible thermosensitive recording layer was formed. Finally, a transparent resin solution is applied to the entire surface of the card substrate from above the reversible thermosensitive recording layer to form a protective layer for protecting the reversible thermosensitive recording layer, and the capacity data card of the present invention (see FIG. 1). ) Got.

<Example 2> A resin solution in which magnetic powder was dispersed on one side of a card base material was applied by a microgravure printing method for about 1 hour.
After applying a 5 μm coating and applying a magnetic field orientation in a horizontal magnetic field of about 3000 Gauss, it was dried with hot air at 100 ° C. for 3 minutes to provide a magnetic recording layer. Subsequently, about 4 μm of concealable ink was applied on the magnetic recording layer by gravure printing, and
The coating was dried for about 40 seconds with hot air at ℃ to provide a concealing layer. Subsequently, a card brand, a picture, and the like were printed on the concealing layer by an offset printing method, irradiated with UV (ultraviolet rays), and dried to form a printing layer. Next, on the other surface of the card base material, an anchor coating agent was applied and dried to provide a first anchor layer. Subsequently, a metal material having a purity of 99.99% or more was formed on the entire surface of the card substrate from the first anchor layer to a thickness of about 160 ° by a vacuum evaporation method to form a conductive layer. Subsequently, a portion corresponding to the non-conductive portion of the conductive layer was thermally melted in a pattern by a YAG laser to form a conductive data pattern layer having a capacitive data pattern as shown in FIG. Subsequently, an anchor coat agent was applied to the entire surface or a part of the card substrate from above the conductive data pattern layer and dried to form a second anchor layer. Subsequently, a reversible thermosensitive recording agent was applied on the second anchor layer by gravure printing at about 5 μm, and dried with hot air at 70 ° C. for about 90 seconds to form a reversible thermosensitive recording layer. Finally, forming a protective layer to protect the reversible thermosensitive recording layer by applying a transparent resin liquid on the entire surface of the card substrate from above the reversible thermosensitive recording layer,
The capacity data card of the present invention (see FIG. 6) was obtained.

<Material> Card base material; 188 μm white PET (E-22; manufactured by Toray Industries, Inc.) Magnetic recording layer; Magnetic powder (1750 Oe; barium ferrite) 100 parts by weight Vinyl chloride-vinyl acetate copolymer (VAGF; Union Carbide Co., Ltd.) 20 parts by weight Polyurethane resin (Nipporan 2304; Nippon Polyurethane Industry Co., Ltd.) 30 parts by weight Hexamethylene diisocyanate (Coronate HX; Nippon Polyurethane Industry Co., Ltd.) 2 parts by weight Carbon black (# 3000; Mitsubishi) 5 parts by weight Dispersant (Garfax RE-610; manufactured by Toho Chemical Co., Ltd.) 3 parts by weight Diluting solvent (toluene / MEK / MIBK) 100 parts by weight Concealing layer; Gravure white ink (NEWLP Super White) ; Toyo Ink Mfg. Co., Ltd.) 100 parts by weight Diluent solvent (SL302 solvent; Toyo Ink Mfg.) Appropriate amount Printing layer; Off Process ink for FPOL (TPOL for each color; manufactured by Toyo Ink Manufacturing Co., Ltd.) Anchor layer; polyurethane resin (Byron UR-1400: manufactured by Toyobo Co., Ltd.) 100 parts by weight Diluent solvent (MEK / toluene) Appropriate amount Metallic material for conductive layer; Purity 99.99% or more aluminum Protective layer for conductive data pattern layer; Polyester resin (Elitel EU-3380: manufactured by Unitika Ltd.) 25 parts by weight Diluent solvent (MEK / toluene) 75 parts by weight Reversible thermosensitive recording layer (rewrite part) Acrylic resin 50 parts by weight Teflon filler 1.5 parts by weight Calcium carbonate 1.5 parts by weight Toluene 100 parts by weight Reversible thermosensitive recording layer; composition Stearic acid 7 parts by weight Sebacic acid 2 parts by weight Copolymer resin 6 parts by weight Tetrahydrofuran 30 parts by weight Toluene 10 parts by weight Colored layer (dark color Printing layer); gravure black ink (NEWLP super black: Toyo Ink Mfg. Co., Ltd.) 100 parts by weight of diluting solvent: manufactured (SL302 solvent Toyo Ink Co.) qs

[0059]

According to the capacitive data card of the present invention according to the first to sixth aspects of the present invention, since the reversible thermosensitive recording layer that develops and decolors at a predetermined temperature is provided, the capacity data pattern of the card can be used. Information data of each bit configuration stored in a certain conductive data pattern layer can also be printed and recorded on the reversible thermosensitive recording layer,
It became possible to visually display the stored data contents.

Further, according to the capacitive data card of the invention according to claim 5 or claim 6, a reversible thermosensitive recording layer is provided on a conductive data pattern layer which is a capacitive data pattern on one side of the card. Therefore, the conductive data pattern layer acts as a base coloring layer (reflective layer) for increasing the color contrast of the reversible thermosensitive recording layer according to the original color tone of the conductive data pattern layer (conductive layer). This simplifies the manufacturing process, expands the usable area of the card surface, and expands the flexibility of card design.

[0061]

According to the capacitive data card of the present invention, the bit is changed from unused to used by burning off the resistance, so that the reverse data cannot be easily reproduced, and therefore the data cannot be easily reproduced. , Falsification
There is an advantage that falsification and unauthorized use can be prevented.

Further, the capacitive data card of the present invention is provided with a reversible thermosensitive recording layer capable of visually displaying data, so that the user can read the information in a range that does not require security. This has the effect that the data can be updated and the presence or absence of the data can be confirmed without the need for a special reader / writer.

[Brief description of the drawings]

FIG. 1 is a plan view showing a conductive data pattern of a capacitive data card according to the present invention and an arrangement structure of a capacitor electrode and a fuse portion.

FIG. 2 is a partially enlarged plan view showing a conductive data pattern of a capacitive data card of the present invention and an arrangement structure of a capacitor electrode and a fuse portion.

FIG. 3 is a sectional view showing an example of a capacitive data card according to the present invention.

FIG. 4 is a sectional view showing another example of the capacitive data card of the present invention.

FIG. 5 is a sectional view showing another example of the capacitive data card of the present invention.

FIG. 6 is a sectional view showing another example of the capacitive data card of the present invention.

FIG. 7 is a conceptual explanatory view schematically showing a basic capacity data card system.

[Explanation of symbols]

11: Card part of capacitive data card system 11a, 11b: Electrode part forming part of capacitor on card part side 12: Sensor part of capacitive data card system 12a, 12b: Part of capacitor on sensor part side Electrode unit 13: Capacitor circuit of capacitive data card system 13a, 13b Air capacitor 14 Power supply unit of capacitive data card system 20 Capacitive data card 21, 22 Capacitive data pattern 31 Card base material 32 Conductive layer 33 Fuse Department
35 Non-conductive part 41 Card base 42 First anchor layer 43 Conductive data pattern layer 44 Protective layer of conductive data pattern layer 45 Colored layer 46 Second anchor layer 47 Reversible thermosensitive Recording layer 48 Protective layer of reversible thermosensitive recording layer 49 Magnetic recording layer 50 Printing layer 51 Hiding layer

Claims (6)

[Claims] 1. A first anchor layer, a conductive data pattern layer for forming a capacitive data pattern, and a protective layer are sequentially provided on at least one side of a substrate, and the conductive data pattern layer is provided in the card via an air capacitor. A capacitive data card that forms an input / output device that becomes a closed circuit including a circuit and performs input / output of data between the input / output device and at least the whole or part of the other surface of the base material A capacitive data card comprising a second anchor layer, a reversible thermosensitive recording layer, and a protective layer sequentially provided. 2. The capacitive data card according to claim 1, wherein a base coloring layer is provided between said base material and said second anchor layer. 3. A magnetic recording layer, a first anchor layer, a conductive data pattern layer for forming a capacitive data pattern, and a protective layer are sequentially provided on at least one surface of a base material, and the conductive data pattern layer is provided via an air capacitor. Forming an input / output device that becomes a closed circuit including the internal circuit of the card, and a capacitive data card for inputting and outputting data to and from the input / output device. A capacitive data card characterized in that at least a second anchor layer, a reversible thermosensitive recording layer, and a protective layer are sequentially provided in a part thereof. 4. The capacitive data card according to claim 3, wherein a base coloring layer is provided between said base material and said second anchor layer. 5. A first anchor layer, a conductive data pattern layer for forming a capacitive data pattern, and a protective layer are sequentially provided on at least one side of a substrate, and the conductive data pattern layer is provided in the card via an air capacitor. A capacitive data card for forming an input / output device that is a closed circuit including a circuit and performing input / output of data between the input / output device and a print layer on the other surface of the base material, if necessary. A transparent second anchor layer and a reversible thermosensitive recording layer are provided on the whole or a part of the interlayer between the conductive data pattern layer and the protective layer, and the conductive data pattern layer is an underlayer for the reversible thermosensitive recording layer. A capacitive data card characterized by acting as a coloring layer. 6. A first anchor layer, a conductive data pattern layer for forming a capacitive data pattern, and a protective layer are sequentially provided on at least one surface of a substrate, and the conductive data pattern layer is provided in the card via an air capacitor. A capacitive data card that forms an input / output device that becomes a closed circuit including a circuit and performs input / output of data between the input / output device and at least the whole or part of the other surface of the base material A magnetic recording layer, a concealing layer, and a printing layer, if necessary, are sequentially provided, and a transparent second anchor layer and a reversible thermosensitive recording layer are sequentially provided on the whole or a part of the conductive data pattern layer and the protective layer; A capacitive data card, wherein the conductive data pattern layer acts as a base coloring layer for the reversible thermosensitive recording layer.