JPH11245567A - Rewrite type IC card - Google Patents

Abstract

(57) [Problem] To provide a rewritable IC card in which a card processing device is inexpensive and the processing time can be shortened. SOLUTION: The IC circuit 5 of the card body has a data recording unit for specifying a card holder, and a transaction record for each transaction unit is recorded on the reversible thermosensitive recording layer (rewrite display surface) on the front surface by the first heating. It has a plurality of unit transaction record areas h1 and h2 to hn which are written and displayed at a temperature, and the unit transaction record area is located at a position different from the unit transaction record area recorded last time when a transaction record is performed. While being recorded,
If the unit transaction recording area at the planned recording position has been written, the unit transaction recording area is erased at the second heating temperature at least before the previous recording.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rewritable IC card, and more particularly, to a card having an IC circuit in a card body and coloring at a first heating temperature for displaying a transaction record on the surface. The present invention relates to a rewritable IC card provided with a reversible thermosensitive recording layer that is decolored at a different second heating temperature.

[0002]

2. Description of the Related Art In recent years, an IC card includes an IC module and transmits and receives data through an external reader / writer.
It has been proposed to use it as a pass ticket event numbered ticket or the like. As the embodiments of these IC cards, there are a type having a data input / output terminal on the card surface and a non-contact type in which an antenna unit for transmitting and receiving data is included in a base sheet.

[0003]

Since the above IC card usually has only an electronic transaction record in the inside, it is necessary to confirm a transaction record such as a trading record, a service record or a point addition record as a premium. It could not be confirmed unless the IC card record was output by the reader / writer. Therefore, a rewritable IC card having a reversible heat-sensitive recording layer capable of writing and erasing on the surface of the IC card has been proposed. However, the reversible thermosensitive recording layer has a first heating temperature (eg, 70 degrees Celsius) when displaying the transaction record on the surface.
Degrees to 130 degrees), the color is recorded and erased.
Second heating temperature (for example, 150 degrees Celsius)
(180 degrees). Moreover,
After the color is erased at the second heating temperature, the reversible thermosensitive recording layer surface is cooled to a normal temperature by a cooling mechanism in order to perform recording and display again, or after the color is erased, the card is placed in the processing apparatus until the temperature returns to the normal temperature. It was necessary to keep. Therefore, a rewritable IC card provided with a reversible thermosensitive recording layer requires a complicated and expensive card processing device itself, and requires a long processing time and is inconvenient. SUMMARY OF THE INVENTION The present invention addresses these drawbacks, and provides a rewrite-type IC that enables a card processing device to be inexpensive and to shorten the processing time.
It is intended to provide a card.

[0004]

SUMMARY OF THE INVENTION A rewrite type IC of the present invention
The card must have an I
A rewritable type I including a circuit C and having a reversible thermosensitive recording layer provided with a color at a first heating temperature for displaying a transaction record on the surface and decolored at a second heating temperature different from the first heating temperature.
A C card having a data recording unit for identifying a card owner in the IC circuit of the card body, and writing a transaction record for each transaction unit in the reversible thermosensitive recording layer on the surface at the first heating temperature. It has a plurality of unit transaction record areas to be displayed, and when the transaction record is performed, the unit transaction record area is recorded at a position different from the previously recorded unit transaction record area and is recorded. When the unit transaction recording area at the planned position has been written, the unit transaction recording area is erased at the second heating temperature at least before the previous recording.

Further, as a more preferred embodiment, the IC
In the circuit, when transaction recording is performed, the recording position control data recorded at a different position from the unit transaction recording area recorded last time, and the unit transaction recording area of the planned position to be recorded is written At least before the time of the previous recording, the unit transaction recording area has a storage unit for storing decoloring position control data for decoloring at the second heating temperature.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described in detail based on an embodiment shown in FIGS. FIG. 1 is an explanatory front view showing a writing state on the rewritable IC card of the present invention, and FIG. 2 is an explanatory sectional view of the rewritable IC card of FIG. FIG. 3 is an explanatory cross-sectional view of a processing device for a rewritable IC card. Rewrite type I as an embodiment of the present invention
The C card 1 will be described as a non-contact type IC card.

First, as shown in FIG. 2, a rewritable IC card 1 of the present invention includes an antenna section 4 for transmitting and receiving data and an IC circuit 5 inside a base sheet 11, and further comprises polyethylene on the front and back. Terephthalate (PET)
The material layer 12 or a resin sheet made of polypropylene is laminated, and a rewritable sheet or a rewritable display surface 2 is formed on the upper surface. Although not shown, the surface of the rewritable display surface 2 is appropriately provided with an overcoat layer such as a varnish.

Specific examples of the material for the rewritable display surface 2 include an amphoteric compound having at least one of a phenolic hydroxyl group and a carboxyl group and having an amino group as a functional group or a part of a salt compound; Those comprising a composition containing a compound are preferred. Further, the thickness is preferably 1 m / m or less as a whole, and ideally about 0.25 m / m so as to have sufficient bending.

A printing portion is formed on a surface opposite to the rewrite display surface 2, and the printing portion is made of heat-resistant ink, and at least black ink of the heat-resistant ink is made of carbonless ink. It is. Thereby, when printing the toner on the card surface by non-impact (electrostatographic printing), the heat of the black printing portion can be prevented, and the influence of the heat and pressure on the IC circuit 5 can be avoided.

The heat-resistant ink uses UV ink, which is dried by a UV lamp or the like, and is stable without dissolving the ink in the printing portion when printing the toner on the card surface by non-impact. Printing can be performed, and the IC circuit 5 on the inner surface side of the printing unit can be protected from heat and pressure.

The printing section has a printing section for printing variable information by a printer, and at least the printing section is coated with a surface coat of various resins or conductive materials in order to impart toner printability. First, at the time of non-impact toner printing, a conductive material is applied to improve transferability,
It is desirable to set the resistance value of the card surface to 1.0 × 10 11 ohms or less. Further, in order to improve the fixing property of the toner, various resins are applied to form an anchor coat layer.

According to the present invention, the IC circuit of the rewritable IC card 1 has a data recording section for specifying the card owner, and the reversible thermosensitive recording layer as the rewritable display surface 2 has a transaction for each transaction. It has a plurality of unit transaction record areas h1, h2 to hn for writing and displaying records at the first heating temperature (for example, 70 to 130 degrees Celsius) (FIG. 1).
), The unit transaction recording areas h1, h2 to hn.
When a transaction record is made, it is recorded at a position different from the previously recorded unit transaction record area, and if the unit transaction record area at the scheduled position to be recorded has been written, at least the time of the last record Previously, the unit transaction recording area was stored at the second heating temperature (for example, 150 ° C. to 1 ° C.).
(80 degrees).

In the IC circuit 5, when transaction recording is performed, recording position control data recorded at a position different from the unit transaction recording area recorded last time, and a unit transaction recording area of the planned position to be recorded. Is written, it is desirable that the unit transaction recording area has a storage unit for storing decoloring position control data for decoloring at the second heating temperature at least before the previous recording.

Therefore, as shown in FIG. 3, when the rewritable IC card 1 is inserted into the processing device 21, the non-contact IC reader / writer 27
The user accesses the IC circuit of the card 1 and confirms that he is the card holder who conducts the transaction. Next, from the storage unit of the IC circuit 5, the recording position control data recorded by the write head 25 at the first heating temperature at a position different from the unit transaction recording area recorded last time is read. Further, the writing state of the unit transaction recording area at the scheduled position to be recorded next time is checked, and if the writing has been completed, the unit transaction recording area is erased at the second heating temperature (erasing head 26). Read the erase position control data. When the data communication is performed without any abnormality, the rewrite type IC card 1 is further pushed by the guide rollers 28 under the control of the control unit 22, and is transferred to the erasing head 26 and the writing head 25.
If the unit transaction recording area at the scheduled position to be recorded next has been written, the area is erased by the erasing head 26 (refer to the current erase line in FIG. 1). Next, the transaction record is printed on the current print line (blank line) by the write head 25.

In the above embodiment, a rewrite type IC
The card is shown as an example of a non-contact type, but an IC card having a terminal for performing data communication on a part of the surface may be used, and a unit transaction recording area of a scheduled position to be recorded in the next and subsequent times is filled in. In the case of, not only one line for the next recording but also a plurality of lines may be erased in advance. Furthermore, in the above embodiment, the order of writing and decoloring may be in another order as long as the user can recognize it in addition to going from top to bottom and performing cyclically.

[0016]

The rewritable IC card according to the present invention has the above-described configuration. According to the present invention, if at least the next writing position is already written in the card processing device, the color is erased this time. Since the writing festival is always a blank unit transaction recording area, there is no need to provide a cooling device in the processing device, which makes the processing device inexpensive and does not involve cooling processing. It is possible to provide a rewritable IC card in which the processing time can be shortened.

[Brief description of the drawings]

FIG. 1 is an explanatory front view showing a writing state on a rewritable IC card.

FIG. 2 is an explanatory sectional view of the rewritable IC card of FIG. 1;

FIG. 3 is an explanatory cross-sectional view of a processing device for a rewritable IC card.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rewrite type IC card 2 Rewrite display surface 4 Antenna 5 IC circuit

Claims (2)

[Claims] An IC circuit is included in a card body, and a color is generated at a first heating temperature for displaying a transaction record on a surface of the card.
A rewritable IC card provided with a reversible thermosensitive recording layer capable of decoloring at a second heating temperature different from the heating temperature of the card, wherein the IC circuit of the card body has at least a data recording unit for specifying a card owner. A plurality of unit transaction recording areas for writing and displaying transaction records for each transaction unit at the first heating temperature on the reversible thermosensitive recording layer on the surface, wherein the unit transaction recording area stores transaction records. When the unit transaction record area is recorded at a position different from the previously recorded unit transaction record area, and the unit transaction record area at the scheduled position to be recorded is already written, the unit transaction record is recorded at least before the previous record. A rewritable IC card, wherein an area is erased at the second heating temperature. 2. In the IC circuit, when transaction recording is performed, recording position control data recorded at a position different from the unit transaction recording area recorded last time, and unit transaction recording of the planned position to be recorded. In the case where the area has been written, the unit transaction recording area has a storage unit for storing decoloring position control data for decoloring at the second heating temperature at least before the previous recording. 2. The rewritable IC card according to claim 1, wherein