JPH07314961A - Card and information recording and recognizing method therewith - Google Patents

Abstract

PURPOSE:To provide a method for preventing a card from being modified by recognizing its modification easily at the time of the modification in spite of the provision of a recording part which can carry out writing. CONSTITUTION:An irreversible recording part 3 is mounted onto a card 1 provided with a reversible type thermosensible recording part 2, and at the time of recording by the reversible type thermosensible recording part 2, recording which indicates the substantially same contact as the recording is also carried out by the irreversible recording part 3. If any modification is made to the reversible type thermosensible recording part 2, its indicating content will not meet that of the irreversible recording part 3, so it is possible to find the modification easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a card, a card information recording method and an information recognition method, and more particularly to a card having a recording section capable of repeatedly printing and erasing, and an information recording method and information of the card. Regarding recognition method.

[0002]

2. Description of the Related Art At present, many kinds of cards such as prepaid cards and credit cards are on the market, and among them, there are cards which can display information such as balances by providing a display section for thermal recording. However, the card using this thermal recording method is a write-once type because it uses a thermal recording material whose display part cannot be rewritten, and the number of times information can be written is limited. Also, the written characters are small and difficult to see, and are not suitable for fine characters such as Chinese characters.

In consideration of such circumstances, it has been proposed to form a material (reversible thermosensitive recording material) capable of repeating printing and erasing by heating / cooling the recording / displaying section. Large characters can be written repeatedly as many times as desired, and the detailed information other than the balance can be abundantly written. Therefore, such a reversible heat-sensitive recording material has been attracting attention as a display means for the next-generation card (Actual Publication No. 2-3876).
issue).

[0004]

However, since cards using the reversible thermosensitive recording material are rewritable, there is a risk of being tampered with illegally. For example, the remaining amount display of the prepaid card may be rewritten to be higher than the actual amount, or the display may be erased to make it look like an unused card. Although such illegal tampering cannot be applied to a machine that reads the information in the memory of the card, damage can be expected in the case of transactions between users, so tampering prevention means is absolutely necessary.

Further, in Japanese Utility Model Laid-Open No. 4-126877, for the purpose of preventing this tampering, a proposal is made so that when the reversible heat-sensitive recording portion is heated and tampered with, the irreversible heat-sensitive portion is colored and tampered with. However, in this case, it is easy to tamper with the irreversible heat-sensitive part by not heating the reversible heat-sensitive recording part, and the color change temperature of the irreversible heat-sensitive part is relatively low. Since it must be set to, there is a drawback that the card cannot be used if it is left in a slightly hot environment such as in a car in midsummer even if it is not intended to be tampered with.
Therefore, an object of the present invention is to prevent falsification by providing a rewritable recording section so that it can be easily recognized when it is tampered with.
It provides a card and an information recording method and a recognition method using the card.

[0006]

The first aspect of the present invention has a reversible thermosensitive recording section and an irreversible recording section, and the reversible thermosensitive recording section has a color tone and a color tone at room temperature without application of energy. / Or two or more forms with different transparency can be retained Heat recording in the irreversible recording section The recording temperature of the irreversible recording section is higher than the change start temperature of the reversible thermosensitive recording section The irreversible recording section has an impact Recording with a ribbon, electrophotography, ink jet, punch holes, etc. It is preferable that the irreversible recording section is provided at a plurality of locations, and further that an information storage section is provided.

A second aspect of the present invention is an information recording method for a card having a reversible thermosensitive recording portion, wherein the card is provided with an irreversible recording portion, and the numerical value is recorded when the reversible thermosensitive recording portion is recorded (numerical information). It is characterized in that recording which displays substantially the same contents as information is also performed in the irreversible recording section. In the second aspect of the present invention, preferably, the recording in the irreversible recording section is performed at the same time as, immediately before or immediately after the reversible thermosensitive recording section, the irreversible recording and the reversible recording are performed by the same thermal head, the irreversible recording. For recording and reversible recording, change energy or / and energy application time,
The card to be used further has an information recording section, and a part of the information stored in the information storage is displayed on the reversible thermosensitive recording section. In addition to updating the contents of the above item, the contents displayed in the reversible thermosensitive recording unit may be rewritten or additionally displayed, and additionally displayed in the irreversible recording unit.

A third aspect of the present invention is characterized in that the numerical information of the reversible thermosensitive recording portion and the numerical information of the irreversible recording portion are recognized by optical means. In the third aspect of the present invention, it is preferable to use an information processing means to determine the consistency between both pieces of numerical information or one or both of the pieces of numerical information and the numerical information in the information storage unit.

The present invention will be described in more detail below with reference to the accompanying drawings. FIG. 1 shows an example of a card used in the present invention, where 1 is a card, 2 is a reversible thermosensitive recording section, 3 is an irreversible recording section, and 3'is a recorded section. In FIG. 1, for convenience, the card 1 is used as a 10,000 yen prepaid card, and the reversible thermosensitive recording section 2 shows the accurate balance. Then, each time the card 1 is used, the amount of money used is deducted, and the balance display of the reversible thermosensitive recording unit 1 is rewritten. At the same time, the amount of money used is additionally recorded and displayed as a bar graph in the irreversible recording section 3. Thus, the reversible thermosensitive recording unit 2
Since the irreversible recording unit 3 and the irreversible recording unit 3 are provided, even if the display content of the reversible thermosensitive recording unit 2 is tampered with, the irreversible recording unit 3 retains the display of the content that is not tampered with, and thus the reversible It can be seen at a glance that the sexually sensitive recording portion 2 has been tampered with, and tampering is prevented.

As mentioned earlier, the card 1 has an information storage unit such as the magnetic recording unit 4 shown in FIG. 2A or the information recording unit shown in FIG. 2B.
By providing the IC memory 5 shown in FIG. 1, various information can be stored in the information storage unit, and the stored contents can be corrected and read by a device such as a magnetic head. It can be displayed on the irreversible recording unit 3. 2A and 2B, the reversible thermosensitive recording unit 2, the irreversible recording unit 3, and the information storage unit 4 or 5 are provided on one side of the card 1, but a part thereof is provided on the other side. May be. It is also possible to provide each on both sides. Furthermore, the reversible heat-sensitive recording section 2 and the irreversible reverse recording section 3 may be arranged in parallel on the surface of the card 1.

The reversible thermosensitive recording unit 2 is usually charged with
Numerical information such as balance, number of uses, number of remaining balances, date, etc. is displayed. The information may be displayed once, or the history of two or more times such as the date and balance used last time and the date and balance used this time may be displayed. The numerical information may be coded such as a bar code, a two-dimensional bar code, and Carlacote.

The irreversible recording section 3 has a bar graph shape (see FIG.
(A)), pie chart (Fig. 3 (b)), dot array (Fig. 3 (c)), etc. are used, and the normal usage amount, the number of times of use, etc. are recorded and added depending on the usage situation. Will be recorded.

Here, the fact that the numerical information recorded in the reversible thermosensitive recording section and the numerical information recorded in the irreversible recording section have substantially the same contents means that the objects of each numerical information are the same. It is shown that each numerical information has a degree of correlation to prevent falsification. The display of the irreversible recording unit 3 may be digital display or analog display. In the case of digital display, it is not always necessary to display an accurate numerical value, and it is possible to use the number of times usable and the interval of 1/20 to 1/5 of the total amount of money. It may be displayed or a numerical value that has been rounded up, rounded down, or rounded off may be displayed.

For example, when the usable amount is 10,000 yen, the remaining amount is 6,900 yen (Fig. 4 (a)) and the remaining amount is 6,
The same display as 000 yen (Fig. 4 (b)) is acceptable (rounding down). Also, it is possible to display 6,900 yen as 7,000 yen by rounding up or rounding off. In analog display, for example, FIG.
The bar graph and pie chart of (b) are used, and the display does not necessarily have to display accurate numerical values, but the numerical values can be read with an accuracy of, for example, within ± 20%, although it depends on the required application. I don't mind. The reason is that when the display contents of the reversible thermosensitive recording unit 2 are falsified, there is little merit unless the numerical value is changed to a large value.

Recording on the irreversible recording section is performed at the same time as, immediately before or immediately after, the reversible thermosensitive recording section. If performed at the same time, even if the recording is interrupted due to a device failure or the like, the display contents of both recording sections are always the same, and there is an advantage that there is no inconvenience in use. However, at the same time, the recording means needs to have the same heat, and immediately after and immediately before the recording of punch holes and the like.

In addition, when rewriting the display of the reversible thermosensitive recording portion, there are a case of erasing recorded information and a step of printing new information, and a case of rewriting at once. When dividing the process, usually, a thermal head for printing, a hot stamp for erasing, a heat roller,
Hot air, a thermal head or the like is used. Printing and erasing may be performed by the same thermal head, but in this case, it is necessary to change the applied energy, the applied time, the applied pulse number and the like. In this case, the recording in the irreversible recording unit may be performed between the erasing step and the printing step or immediately after or immediately before both steps. In the case of rewriting at one time, it is possible to rewrite in a single step by controlling any of the applied energy, the applied time, the number of applied pulses, or a combination thereof using a thermal head for each pixel. When the irreversible recording is performed by heat, the same thermal head as in the reversible thermosensitive recording may be used. In this case, it suffices to record under recording conditions that match each material. Further, the reversible heat-sensitive recording may be erased and printed and this irreversible recording may be carried out by the same thermal head, or these three steps may be carried out at the same time. It is also possible to record (erase) simultaneously under three different conditions by appropriately adjusting the number of pulses.

Further, it is also possible to detect each numerical information mechanically in addition to visually confirming it. For example, it is possible to detect the reversible thermosensitive recording unit and the irreversible recording unit with transmitted light or reflected light in the same manner as when reading OCR, and to detect the presence or absence of tampering by using an information processing means such as a CPU. Further, the tampering prevention performance can be further improved by matching with the numerical information of the information storage unit such as magnetism and IC.

The reversible thermosensitive recording material used in the present invention may be any material that reversibly changes transparency and color tone by heat, but the color tone and / or transparency are different at room temperature without application of energy. It is preferable that two or more forms can be retained. For example, two or more kinds of polymers are mixed and changed to transparent or cloudy depending on the compatibility state (JP-A-61-258853), and a method utilizing a phase change of a liquid crystal polymer (JP-A-62-1825). No. 66990, P.2, upper right third line to P.4, upper left line 17), a first color state is achieved at a first specific temperature higher than normal temperature, and at a second specific temperature higher than the first specific temperature. Those which are brought into a second color state by heating and then cooling are mentioned.

In particular, those whose color state changes at the first specific temperature and the second specific temperature are preferably used. As an example of these, a transparent state is obtained at a first specific temperature and a cloudy state is obtained at a second specific temperature (Japanese Patent Laid-Open No. 55-15419).
No. 8), a color that develops at a second specific temperature and a color that disappears at a first specific temperature (JP-A-4-247985), a white turbid state at the first specific temperature, and a transparent state at the second specific temperature. (Japanese Patent Application Laid-Open No. 3-169590), those which develop black, red, blue, etc. at a first specific temperature and those which decolor at a second specific temperature (Japanese Patent Application Laid-Open No. 2-188293, Japanese Patent Application Laid-Open No. 2-189293). 18829
No. 4) and the like. Among these, those in which an organic low molecular weight substance is dispersed in a resin and which are in a transparent state at the first specific temperature and become cloudy in the second specific state are preferably used in terms of sensitivity and durability.

By improving the characteristics of the reversible thermosensitive recording material,
There are several ways to make it even easier to use. The method is shown below. In order to increase the transparent temperature (first specific temperature), two or more kinds of organic low molecular weight substances having different melting points may be appropriately combined, or such an organic low molecular weight substance may be combined with another material having a different melting point. These are disclosed in, for example, JP-A-63-39378, JP-A-63-130380, JP-A-1-123788, JP-A-2-1363, JP-A-3-2089, and the like. It is not limited.

Additives such as surfactants and plasticizers may be added to facilitate the formation of transparent images. These are disclosed in, for example, JP-A-63-104879 and JP-A-63-178079, but the invention is not limited thereto. Further, the reversible heat-sensitive layer may be crosslinked by heat, UV, EB, etc., which makes it possible to improve durability repeatedly. Above all, E
Crosslinking with B is preferred.

A protective layer may be provided on the reversible heat-sensitive layer to protect the reversible heat-sensitive layer. Further, as described above, a protective layer can be provided on the reversible thermosensitive layer to protect the reversible thermosensitive layer. As the material of the protective layer (thickness 0.1 to 5 μm), silicone rubber,
Silicone resin (JP-A-63-221087), polysiloxane graft polymer (JP-A-63-31738)
No. 5), an ultraviolet curable resin, or an electron beam curable resin (Japanese Patent Application Laid-Open No. Hei 2
No. 566) and the like. The protective layer may contain an organic or inorganic filler (JP-A-4-85077), silicone oil or the like. In any case, a solvent is used at the time of coating, but it is desirable that the solvent is difficult to dissolve the resin of the heat sensitive layer and the organic low molecular weight substance. Further, in order to improve the contrast of the formed image, a light reflecting layer may be provided by a method such as vapor deposition of a metal such as Al (JP-A-1-14079, JP-A-1-20993, etc.).

The irreversible recording unit 3 may be one that allows the recording to be viewed and cannot be easily tampered with. Therefore, as the irreversible recording section 3 or a recording method used for the irreversible recording section 3, a thermal recording material using a leuco dye and a color developer, a thermal destruction type thermal recording material in which a metal such as Sn is vapor-deposited is provided, or a thermal transfer ribbon, Examples include impact ribbon, electrophotography, ink jet recording, and punch hole method used for telephone cards and the like. In the case of a thermal transfer ribbon, electrophotography, inkjet, etc., it is preferable to provide a layer containing a thermoplastic resin or an organic or inorganic filler, which is easy to transfer and fix ribbon ink, toner, inkjet ink or the like. Among them, the heat-sensitive recording material and the thermal transfer ribbon which can use the same recording apparatus as the reversible heat-sensitive recording section have an advantage that the apparatus can be downsized.

If Sn is used as the above-mentioned light reflecting layer, it can be used as an irreversible thermal destruction type recording material which also functions as a light reflecting layer. In addition, a part of the reversible thermosensitive recording material is used as an irreversible recording part without using an irreversible recording material, and irreversible recording is performed by applying higher energy than usual to destroy the surface change or internal structure. Is also possible.
The recording temperature or energy when using an irreversible recording material that changes with heat is preferably higher than the change start temperature of the reversible thermosensitive recording material. When the reversible thermosensitive recording material has two changing temperatures (first specific temperature and second specific temperature) as described above, the higher temperature is more preferable than the first temperature, and the higher temperature is higher than the second temperature. Is particularly preferable. This is because even if it is called irreversible recording, the entire color develops above the discoloration temperature, so there is the disadvantage that the numerical information cannot be understood.Therefore, it is less likely that information will be erased by mistake when the change temperature is higher. is there.

Specific examples of the above-mentioned irreversible recording portion include a high-temperature color development type heat-sensitive recording material using a leuco dye and a color developer, and a thermal destruction type heat-sensitive recording material in which a metal such as Sn is deposited. . Since the irreversible recording area is recorded with impact ribbon, electrophotography, ink jet, punch holes, etc. other than heat, the heat recorded in the reversible heat-sensitive recording area is changed to recording even if it is improperly applied to the irreversible recording area. There is an advantage that the display of the irreversible recording section can be always seen stably and tampering can be easily found.
In addition, by providing multiple irreversible recording parts, you can collect cards that have been used once, such as prepaid cards that have run out of balance, initialize the information storage part, and write the reversible recording part values in full. In addition, it becomes possible to recycle and use.

As the information storage unit, in addition to the magnetic recording unit 4 and the IC memory 5 described above, an optical memory, a magneto-optical recording material, or the like is used.

[0027]

EXAMPLES Next, the present invention will be described more specifically with reference to examples. Both parts and% are based on weight.

Example 1 White PET with a thickness of about 188 μm (Lumirror X-, manufactured by Toray Industries, Inc.)
21: Antistatic treatment type) γ-Fe ₂ O ₃ 10 parts Vinyl chloride-vinyl acetate-vinyl alcohol copolymer 2 parts (UCC: VAGH) Coronate L (10% toluene solution) 2 parts Methyl ethyl ketone ( MEK) 43 parts A liquid consisting of 43 parts of toluene is applied with a wire bar and dried by heating to about 1
A magnetic recording layer having a thickness of 0 μm was provided.

Next, 75% acetic acid 10 parts butyl solution of urethane acrylate UV curable resin (manufactured by Dainippon Ink and Chemicals Co., Ltd .: Unidick C7-164) MEK 10 parts solution was applied with a wire bar and dried by heating. 80W
The film was cured with a UV lamp of 1 cm / cm to provide a smooth layer having a thickness of about 3 μm, and Al was vacuum-deposited to a thickness of about 400 Å to form a light reflecting layer.

A vinyl chloride-vinyl acetate-phosphate ester copolymer 20 parts (Denka vinyl # 1000P manufactured by Denki Kagaku Kogyo Co., Ltd.) MEK 40 parts Toluene 40 parts was further applied thereto with a wire bar and dried by heating. About 1
A μm thick adhesive layer was provided.

Further thereon, stearyl stearate (M-9676 manufactured by NOF CORPORATION) 5 parts Eicosane diacid (manufactured by Okamura Oil Manufacturing: SL-20 / 99) 5 parts Vinyl chloride-vinyl acetate copolymer 40 parts (bell) A liquid consisting of 200 parts of THF and 20 parts of toluene was applied with a wire bar and dried by heating at 130 ° C. for 3 minutes to form a reversible thermosensitive layer having a thickness of about 5 μm.

Further, a solution containing 75% of urethane acrylate type ultraviolet curable resin in 10% butyl acetate solution (Dainippon Ink & Co., Inc .: Unidic C7-157) and 10 parts of isopropyl alcohol was applied with a wire bar and heated. 80 after drying
A thermoreversible recording medium having a transparent thermosensitive recording medium was prepared by irradiating ultraviolet rays with a w / cm ultraviolet lamp to cure it, providing a protective layer having a thickness of about 3 μm, and heating to 80 ° C.

After this medium was punched out into a card shape, a pattern (ten round symbols and numerical values) as shown in FIG. 5A was printed on a portion near the edge of this card to form an irreversible recording section. . Furthermore, the reversible heat-sensitive recording portion was formed by printing a mark as shown below in FIG. And assuming that this card is a 10,000 yen prepaid card, the initial balance is 1
It was recorded with a thermal head in the recording section at 50,000 yen. Then, assuming that it was used for 4,000 yen, the "10,000 yen" displayed on the reversible thermosensitive recording area was erased by pressing a hot stamp heated to 80 ° C, and then "6,000" with a thermal head. I rewritten it as a circle. Immediately after that, punch holes were punched in the black circle portion shown in FIG. 4 (b) of the irreversible recording portion, and it was displayed that the remaining amount was 6,000 yen. (FIG.5 (b)).
Next, replace "6,000 yen" in the reversible thermosensitive recording area with "10,0".
It was rewritten as "00", but it was found that the punched portion of the irreversible recording portion remained as it was and that the alteration was obviously made.

Example 2 A thermoreversible recording medium was prepared in the same manner as in Example 1 except that Sn was used as the material for the light reflecting layer, and then printing was performed as shown in FIG.
As in (a), a reversible thermosensitive recording portion and a bar graph-shaped irreversible recording portion were formed. Regarding the change temperature of the reversible thermosensitive recording portion, the clearing temperature (first specific temperature) was 65 ° C to 105 ° C, and the clouding temperature (second specific temperature) was 115 ° C or higher. Also, the change temperature of this irreversible recording part is 180 ° C.
That was all.

A printing tester manufactured by Yashiro Denki Co., Ltd. was used as a recording device, and the thermal head was KBE- manufactured by Kyocera Corporation.
First, in the same manner as in Example 1 using a 40-8 MGK with a pulse width of 2.0 sec and an applied voltage of 12.5 V, "10,000 yen" was displayed in white in the reversible thermosensitive recording area. Next, energy is applied to the entire surface of the reversible thermosensitive recording area with an applied voltage of 10.5 V to erase (make transparent) the recording, and then 1 as shown in FIG.
It was again recorded as "3,000 yen" at 2.5V. Then, in the irreversible recording area, after use, as shown in FIG.
When the energy of 17.0V was applied to the portion corresponding to 0 yen to dissolve Sn, the underlying magnetic layer could be seen, and then the cigarette was brought closer to it, the value in the reversible thermosensitive recording part disappeared, but it was irreversible. The recording did not disappear in the recording section.

Example 3 The same card as in Example 2 was used, and after "10,000 yen" was displayed in the same reversible thermosensitive recording area on the same recording apparatus, the same thermal head was used to control the voltage in dot units. ,
10.5 in the area corresponding to the background of the reversible thermosensitive recording area
V, 12.5V is printed on the part corresponding to the number, 17.0V energy is applied to the irreversible recording part, and "3,000 yen" is written on the reversible thermosensitive recording part with only one pass. The same recording as in FIG. 6 (b) was performed in the irreversible recording section.

Example 4 Up to the adhesive layer, those prepared in the same manner as in Example 1 were punched out on a card, a reversible thermosensitive layer and a protective layer were formed on the card in the same manner as in Example 1, and the card was formed. To the remaining part of the liquid [A] Bisphenol A type 20 parts Completely saponified PVA (Kuraray Co., PVA117) 20 parts 10% aqueous solution water 60 parts [B liquid] 3-di (N-ethyl) amino-6-methyl -7-20 parts Alinino Fluoran (ODB manufactured by Yamamoto Kasei Co., Ltd.) Fully saponified PVA (Kuraray Co., PVA117) 20 parts 10% aqueous solution water 60 parts [C liquid] Calcium carbonate (Shiraishi Calcium Co., Tsunex E) ) 20 parts Zinc stearate (NOF Corporation, zinc stearate GF200) 5 parts Completely saponified PVA (Kuraray, PVA117) 25 parts 10% aqueous solution water 50 parts After uniform dispersion, A solution, B solution and C solution 3: 1:
The mixture was uniformly mixed in No. 3, and after coating, heating and drying, an irreversible recording portion having a thickness of about 5 μm was formed. Further, a reversible heat-sensitive recording portion and a bar graph irreversible recording portion were formed on the print by printing in the same manner as in Example 2. The change temperature of this irreversible recording part is about 120.
It was ℃. Recording and rewriting were possible in the same manner as in Example 2 except that the applied voltage at the time of recording on the irreversible recording section was 12.5V.

Example 5 A card was produced in the same manner as in Example 4 except that benzyl P-hydroxybenzoate was used as the bisphenol A. The changing temperature of the irreversible recording area was about 80 ° C. Recording and rewriting were possible in the same manner as in Example 2 except that the applied voltage at the time of recording on the irreversible recording section was 10.5V.

Using the cards prepared in Examples 4 and 5, the reversible thermosensitive recording area was 10,000 in the same manner as in Example 1.
I recorded it as a circle. Then, assuming that 4,000 yen was used, "10,000 yen" displayed on the reversible thermosensitive recording area was erased with a hot stamp at 90 ° C, and then rewritten to 6,000 yen with a thermal head. After that, a portion corresponding to 4,000 yen of the irreversible recording portion in the form of a bar graph was developed by heating.
Then, when the irreversible recording area of the card of Example 5 was heated by a hot stamp at 90 ° C., the irreversible recording area and its surroundings were colored black, and the balance was lost. There was no change even when heated with the hot stamp, and the balance could be clearly recognized.

[0040]

According to the inventions of claims 1 to 6, even if the display of the reversible thermosensitive recording section is falsified, the correct display remains in the irreversible recording section, and the falsification can be easily found. Claims 6 to 12
According to the invention, since the information storage unit is provided, by displaying a part of the information on the reversible thermosensitive recording unit,
It becomes possible to visualize invisible information, update the contents of the information storage unit according to the usage state of the card, rewrite or additionally display the display contents of the reversible thermosensitive recording unit, and the irreversible recording unit. The additional display is performed to keep the display of the reversible thermosensitive recording portion and the display of the irreversible recording portion the same, and the tampering prevention effect can be further enhanced. According to the thirteenth and fourteenth aspects of the present invention, since the presence or absence of falsification is represented by a numeral, the judgment becomes easy.

[Brief description of drawings]

FIG. 1 is a plan view of a typical example of a tampering prevention card according to the present invention.

2A and 2B are plan views of two examples of a card further provided with an information storage unit.

3 (a), (b) and (c) are diagrams showing three forms of an irreversible recording unit of a card.

4A and 4B are views for explaining the relationship between the irreversible recording section and the reversible thermosensitive recording section of the card.

5A and 5B are diagrams showing an example of a usage state of a card.

6A and 6B are diagrams showing an example of a usage state of a card.

[Explanation of symbols]

 1 card 2 reversible thermosensitive recording unit 3 irreversible recording unit (3 'recorded part) 4 magnetic recording unit 5 IC memory

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G06K 17/00 S 19/00 19/06 19/10 G06K 19/00 BU

Claims (14)

[Claims] 1. A reversible thermosensitive recording section and an irreversible recording section, wherein the reversible thermosensitive recording section can hold two or more forms having different color tones and / or transparency at room temperature without application of energy. Card to do. 2. The card according to claim 1, wherein the irreversible recording section is recordable by heat. 3. The reversible thermosensitive recording section is in a first color state at a first specific temperature higher than room temperature, and is heated and cooled to a second specific temperature higher than the first specific temperature and then changed to a second color. The card according to claim 2, wherein the recording temperature of the irreversible recording section is higher than the first specific temperature of the reversible thermosensitive recording section. 4. The card according to claim 1, wherein the irreversible recording portion is recorded by impact ribbon, electrophotography, ink jet, punch holes, or the like. 5. The card according to claim 1, wherein the irreversible recording section is provided at a plurality of locations. 6. The card according to claim 1, further comprising an information storage unit. 7. Numerical information is recorded in a reversible thermosensitive recording unit of a card having a reversible thermosensitive recording unit and an irreversible recording unit,
Further, an information recording method characterized by recording information having substantially the same content as the numerical information in the irreversible recording section. 8. The recording in the irreversible recording section is carried out simultaneously with, immediately before or after the reversible heat-sensitive recording section.
Information recording method described. 9. The recording method according to claim 7, wherein the irreversible recording section is recorded by heat, and the irreversible recording section and the reversible thermosensitive recording section are recorded by the same thermal head.
Information recording method described. 10. The recording in the reversible thermosensitive recording area is different from the recording in the irreversible recording area in energy application time.
Information recording method described. 11. The information recording method according to claim 7, wherein the card further has an information storage unit, and a part of the information stored in the information storage unit is displayed on the reversible thermosensitive recording unit. 12. The card, according to its usage,
The information recording method according to claim 11, wherein at least a part of the content of the information storage unit is updated, the display content of the reversible thermosensitive recording unit is rewritten or additionally displayed, and additionally displayed in the irreversible recording unit. 13. Information characterized by discriminating optical information between the numerical information of the reversible thermosensitive recording unit and the numerical information of the irreversible recording unit of a card having a reversible thermosensitive recording unit and an irreversible recording unit. Recognition method. 14. The information recognition recording method according to claim 13, wherein the information processing means determines the consistency between the numerical information of the reversible thermosensitive recording portion and the numerical information of the irreversible recording portion and / or the numerical information of the information storage portion.