JP6753058B2 - Paper substrate for conductive circuit, paper substrate with conductive circuit, and sheet-shaped information recording device - Google Patents

Description

The present invention relates to a paper substrate for a conductive circuit, a paper substrate with a conductive circuit, and a sheet-shaped information recording device, and a paper substrate for a conductive circuit and a paper substrate with a conductive circuit capable of obtaining a particularly good conduction / disconnection state. And a sheet-shaped information recording device.

A sheet-shaped verification device in which a conductive pattern is silk-printed on a sheet and a pad of a communication module is electrically connected to a terminal portion of the conductive pattern via a conductive adhesive has been put into practical use (see Patent Document 1). ..

The verification device disclosed in Patent Document 1 can be sent to the user as a mail, and when the receiving user peels off the cover, the inner page is provided with some selection buttons and their explanations. When an arbitrary selection button is pressed according to the content of the sentence, the information is stored in the communication module embedded in the paper substrate, and the stored information can be read by the host device by proximity wireless communication.

Japanese Patent Publication No. 2008-516248

By the way, as described above, the conductive pattern is provided on the paper substrate, but the paper substrate is generally hygroscopic, and when the paper substrate contains moisture, the impedance between the conductive patterns on the paper substrate is lowered. , There is a problem that they conduct with each other. In this case, since the conductive pattern that should not be conductive is conductive, it is not possible to maintain an appropriate conductive / disconnected state.

The present invention has been made in consideration of such a point, and provides a paper substrate for a conductive circuit, a paper substrate with a conductive circuit, and a sheet-shaped information recording device capable of obtaining a good conduction / disconnection state. The purpose is to do.

The present invention is a paper substrate for a conductive circuit in which a conductive circuit is formed on the surface, comprising a paper substrate main body and a moisture blocking layer provided on the surface of the paper substrate main body on the conductive circuit side. It is a paper substrate for a conductive circuit, characterized in that the cup absorption on the moisture blocking layer side is 10 g / m ² or less.

The present invention is a paper substrate for a conductive circuit, characterized in that the moisture blocking layer includes any of a pigment layer, a UV coating layer, and a plastic layer.

The present invention includes a paper substrate for a conductive circuit and a conductive circuit formed on the surface of the paper substrate, and the paper substrate is provided on the paper substrate main body and the surface of the paper substrate main body on the conductive circuit side. It is a paper substrate with a conductive circuit that includes a moisture-blocking layer and has a cup absorption of 10 g / m ² or less on the moisture-blocking layer side of the paper substrate.

The present invention comprises a paper substrate for a conductive circuit, a conductive circuit formed on the surface of the paper substrate and connected to a terminal portion, and a communication module capable of wireless transmission connected to the conductive circuit via a terminal portion. The paper substrate for the conductive circuit includes a paper substrate main body and a moisture blocking layer provided on the surface of the paper substrate main body on the conductive circuit side, and the degree of cup absorption on the moisture blocking layer side of the paper substrate is high. It is a sheet-shaped information recording device characterized by being 10 g / m ² or less.

The present invention is characterized in that a part of the conductive circuit is breakable, and the communication module includes a break position information of the conductive circuit and an IC chip that stores break time information. It is a recording device.

The present invention is characterized in that the conductive circuit includes a plurality of pressable selection buttons, and the communication module includes an information for identifying the pressed selection button and an IC chip for storing the pressed time information. It is a sheet-shaped information recording device.

According to the present invention, the lead wire / disconnection state can be kept good.

FIG. 1 is an external view of an information collecting device according to the first embodiment of the present invention. FIG. 2 is a development view of the information collecting device of FIG. FIG. 3 is a block diagram showing a schematic configuration of the communication module 10. FIG. 4 is a block diagram showing an example of the internal configuration of the ASIC 12. FIG. 5 is a developed view of the paper substrate 30 that is the basis of the medication recording card 1. FIG. 6 is a diagram showing the deployment command of the paper substrate. FIG. 7 is a diagram showing a type of paper substrate. FIG. 8 is a diagram showing a cup suction amount of a paper substrate. 9 (a) and 9 (b) are views showing a conductive circuit printed on a paper substrate. FIG. 10 is a diagram showing the resistance value of the conductive circuit. FIG. 11A is a diagram showing a paper substrate with a conductive circuit, and FIG. 11B is a diagram showing an information recording device. FIG. 12 is a diagram showing a comprehensive evaluation of the information recording device. FIG. 13 is a diagram showing a resistance value of the information recording device.

Hereinafter, embodiments of the present invention will be described in detail.
The present embodiment is an information recording device that records the date and time when a patient took a drug and the condition after taking the drug, and FIG. 1 is an external view thereof. The information recording device of FIG. 1 is composed of a sheet-shaped medication recording card 1 and is a foldable type, and when unfolded, an information input surface 2 as shown in FIG. 2 appears. The medication recording card 1 as an information recording device includes a paper substrate 30 described later, a conductive circuit 18A provided on the paper substrate 30, and a communication module capable of wireless transmission connected to the conductive circuit 18A via a terminal portion 39. (See FIGS. 3 and 5).

The medication record card 1 of FIG. 1 is given to the patient when the patient has completed the medical examination at the hospital and the preparation of the medicine based on the prescription has been completed. In this medication record card 1, after the patient has taken the medicine, the patient himself presses the selection button so that the physical condition can be recorded.

The information input surface 2 of the medication record card 1 of FIG. 2 has a three-sided configuration, the first surface 2a is provided with a start button 3 and a cancel button 4, and the second surface 2b is a drug (tablet) to be taken by the patient. ) 5 is arranged, and a selection button for inputting the degree of a patient's symptom is arranged on the third surface 2c. The back surface side of the first surface 2a is the surface described as "Medication Record Card 1" in FIG.

On the third surface 2c, a plurality of symptoms related to the efficacy of the drug are described. In the example of FIG. 2, a total of five types of symptoms, (1) symptom 1, (2) symptom 2, (3) symptom 3, (4) symptom 4 and (5) symptom 5, are described, and each symptom is described. One can be selected from three degrees (severe, moderate, mild). The patient first presses any of the first button rows 6 consisting of the selection buttons 6a-6e corresponding to the five types of symptoms to select a specific symptom, and then subsequently responds to the degree of the symptom. Press any of the second button rows 7 composed of the selection buttons 7a to 7c. This allows the patient to enter a particular degree of symptom after taking the drug. The patient does not necessarily have to answer all five symptoms, but may answer only some of the symptoms.

The selection buttons 6a to 6e constituting the first button row 6 are arranged along the X direction in FIG. 2, and the selection buttons constituting the second button row 7 are substantially parallel to the first button row 6 in the Y direction. It is arranged over multiple rows along.

The symptoms and their degrees described on page 3 2c are merely examples, and may be arbitrarily changed depending on the type of drug.

The patient presses the start button 3 when starting to use the medication record card 1. Then, the patient pushes the case of the tablet 5 arranged on the second surface 2b with a finger, takes out the medicine from the lower surface side of the second surface 2b, and takes the medicine. Then, the selection buttons 6 and 7 corresponding to the degree of the symptom after taking the drug are pressed.

The information of each case of the start button 3, the cancel button 4, the tablet 5, and the selection buttons 6 and 7 pressed by the patient is automatically stored in the communication module 10 built in the medication record card 1. ing.

FIG. 3 is a block diagram showing a schematic configuration of the communication module 10 capable of wireless communication described above. The communication module 10 of FIG. 3 is in the form of a thin film thinner than the paper thickness, and has an ASIC (Application Specific Integrated Circuit) 12 as an IC chip mounted on a film substrate 11, a crystal transducer 13, and a button battery 14. A speaker 15, a plurality of pads 16 formed along the long side of the film substrate 11, an antenna pattern 17 formed along the outer edge of the film substrate 11, and conductivity formed on the film substrate 11. It has a pattern 18.

FIG. 3 is a block diagram in which the internal configuration of the communication module 10 is functionalized, and the actual arrangement, size, shape, and number of each circuit component and pattern can be arbitrarily changed.

FIG. 4 is a block diagram showing an example of the internal configuration of the ASIC 12. The ASIC 12 of FIG. 4 stores the information of each case of the start button 3, the cancel button 4, the tablet 5, and each selection button pressed by the patient in chronological order together with the time information, and the pressing information in the storage unit 21. It has a control unit 22 that controls storage and a wireless communication unit 23 that performs wireless communication between a host computer (not shown).

The storage unit 21 stores the information for identifying the button pressed by the patient and the time information when the button is pressed as a set. The cancel button 4 is intended to cancel the information of the button pressed immediately before the cancel button 4 is pressed. When the storage unit 21 stores the information for specifying the pressing of the cancel button 4 and the time information when the button is pressed, the host computer cancels the information of the button pressed immediately before the cancel button 4. ..

The wireless communication unit 23 performs so-called NFC (Near Field Communication, near field communication) with the host computer to send and receive information. The method and frequency band used by the wireless communication unit 23 for wireless communication are not particularly limited. For example, wireless communication is performed in a band of 13.56 MHz by a wireless method compliant with ISO14443.

Since NFC can transmit and receive electric power according to the standard, it is possible in principle to drive the communication module 10 without a battery. However, the communication module 10 of the present embodiment also includes the speaker 15, and since the power consumption is relatively large, the button battery 14 is mounted.

As long as the button battery 14 is mounted, the battery runs out when used for a long period of time. However, the medication recording card 1 according to the present embodiment is often made of paper and cannot withstand long-term use. When the battery runs out, the medication record card 1 itself is to be replaced.

Next, the specific structure of the medication record card 1 according to the present embodiment will be described. The medication recording card 1 described above has a three-layer structure in which one paper substrate is vertically divided into three equal parts and folded, and the information input surface 2 shown in FIG. 2 appears on the surface thereof. When this is further divided into three equal parts in the horizontal direction and folded, the structure shown in FIG. 1 is obtained. In the following, the conductive pattern formed on one original paper substrate will be described.

FIG. 5 is a developed view of the paper substrate 30 that is the basis of the medication recording card 1. Each of the divided substrates 30a, 30b, and 30c obtained by dividing the paper substrate 30 of FIG. 5 into three equal parts in the vertical direction by a crease 61 is provided with a different conductive pattern 18, a notch, or the like. The three divided substrates 30a to 30c are foldable at the crease 61 and are not physically separated.

The divided substrate 30b in the center of FIG. 5 is the lowest layer substrate 30b arranged on the lowermost layer to form the conductive pattern 18. The divided substrate 30c on the right side is an intermediate layer substrate 30c in which a notch 62 and a perforation 63 are mainly formed and arranged on the lowermost layer substrate 30b. The split substrate 30a on the left side of the lowermost layer substrate 30b is the uppermost layer substrate 30a on which the conductive pattern 38 for conducting / blocking the switch contacts is formed and arranged on the intermediate layer substrate 30c.

As will be described later, the structure of FIG. 2 can be obtained by folding and thermocompression-bonding the intermediate layer substrate 30c to the lowermost layer substrate 30b divided into three equal parts, and then folding and thermocompression-bonding the uppermost layer substrate 30a on the intermediate layer substrate 30c. .. Therefore, the back surface side of the top layer substrate 30a shown in FIG. 5 becomes the information input surface 2 shown in FIG.

Before the intermediate layer substrate 30c is folded and thermocompression bonded onto the lowermost layer substrate 30b, the communication module 10 is bonded to the lowermost layer substrate 30b, and the intermediate layer substrate 30c is thermocompression bonded onto the communication module 10. In this way, the communication module 10 is sandwiched between the lowermost layer substrate 30b and the intermediate layer substrate 30c. As a result, the conductive pattern 18 and the communication module 10 formed on the surface of the lowermost layer substrate 30b do not appear in appearance in the completed state of the medication recording card 1. Similarly, the conductive pattern on the uppermost layer substrate 30a does not appear in appearance because it is folded on the intermediate layer substrate 30c and thermocompression bonded.

Next, the conductive pattern 18 formed on the surface of the bottom layer substrate 30b will be described with reference to FIG. The conductive pattern 18 of FIG. 5 has first to third pattern surfaces 30b1 to 30b3 corresponding to information input surfaces 2 composed of first to third surfaces 2a to 2c divided into three equal parts in the lateral direction.

The first pattern surface 30b1 has a switch contact 31 corresponding to the start button 3 and a switch contact 32 corresponding to the cancel button 4. The second pattern surface 30b2 has a total of six switch contacts 33 corresponding to each case of the tablet 5. The third pattern surface 30b3 has a total of 15 switch contacts 34-37 corresponding to each selection button for selecting the patient's symptom and degree of symptom.

Of these switch contacts 31 to 37, a total of six switch contacts 33 corresponding to each case of tablet 5 are conducting in the initial state, and all other switch contacts 31, 32, 34 to 37 are in the initial state. It is blocked.

The switch contact 33 corresponding to each case of the tablet 5 is physically broken when the case is pressed to take out the tablet 5, and the electrical conduction is cut off. When the corresponding buttons are pressed, the other switch contacts 31, 32, 34 to 37 are pressed by the circular conductive pattern 38 provided on the back surface side of the information input surface 2 in contact with the corresponding switch contacts. Temporarily conducts only while doing.

As described above, some of the switch contacts 31 to 37 are electrically conductive in the initial state and some are electrically cut off. The state of the switch contacts can be switched by physically breaking each switch contact or by bringing another conductive pattern into contact with each switch contact.

One end of each of the switch contacts 31 to 37 shown in FIG. 5 is connected to the corresponding terminal of the terminal portion 39 on the first pattern surface 30b1 via the conductive pattern 18, and the other ends are all grounded via the conductive pattern 18. It is connected to the terminal. The terminal portion 39 is provided with terminals corresponding to the total number of switch contacts, and in addition, ground terminals are provided on both ends of the terminal portion 39. The conductive pattern extending from the ground terminal (hereinafter referred to as the ground pattern 18a) is formed along the outer edge of the first to third pattern surfaces 30b3 so as to surround the switch contacts with other conductive patterns.

The grounding pattern 18a is formed thicker than other conductive patterns in order to reduce noise.

Here, the conductive circuit 18A is configured by the conductive pattern 18 and the grounding pattern 18a described above. Further, the terminal portion 39 is connected to the conductive circuit 18A. Further, the paper substrate 30 and the conductive circuit 18A formed on the paper substrate 30 constitute a paper substrate 70 with a conductive circuit before the communication module 10 is joined.

In this way, all switch contacts are connected between the corresponding terminals and the ground pattern 18a. Therefore, when the state of any of the switch contacts changes, the changed information is transmitted to the communication module 10 via the dedicated terminal. The storage unit 21 in the communication module 10 stores information for specifying the switch contact whose contact state has changed, that is, information for specifying the pressed selection button or breaking position, or time information when the contact state has changed. To do.

Each switch contact on the third pattern surface 30b3 is arranged along the Y direction substantially parallel to the first button row and the first switch contact row 34 corresponding to the first button row arranged along the X direction. It is grouped into a plurality of second switch contact rows 35 to 37 corresponding to the plurality of second button rows.

One end side of a total of five switch contacts in each of the second switch contact rows 35 to 37 is connected to a common terminal, and the other end side is all connected to a ground terminal, and these five switch contacts Are connected in parallel. In the example of FIG. 5, a total of three second switch contact rows 35 to 37 in which a total of five switch contacts are connected in parallel are provided.

Regardless of which switch contact state in each switch contact row 35 to 37 connected in parallel changes, the state change information is transmitted to the communication module 10 via the same terminal. Therefore, in the communication module 10, which switch It is not possible to identify whether the contact point has changed from that information alone. Therefore, in the present embodiment, the state of the switch contacts in the first switch contact row 34 is changed before the state of the switch contacts in the second switch contact rows 35 to 37 is changed. It is specified which switch contact state in the second switch contact row 35 to 37 has changed.

More specifically, first, the state of any switch contact in the first switch contact row 34 is changed to detect the position of the switch contact in the X direction. Then, a total of three switch contacts in the second switch contact rows 35 to 37 located at the same position in the X direction are determined as selection candidates. Next, if any of these three switch contacts has changed state, the information of the switch contacts is transmitted to the communication module 10.

In this way, by combining the state change information of the switch contacts in the first switch contact row 34 and the state change information of the switch contacts in the second switch contact row 35 to 37, the second switch contact row 35 to 37 The state of a specific switch contact inside can be correctly transmitted to the communication module 10.

Connecting a plurality of switch contacts in parallel and connecting one end to a common terminal can reduce the total number of terminals and the number of conductive patterns 18 in the terminal portion 39, so that the pattern area is particularly limited. It is effective for. Even if a plurality of switch contacts in the second switch contact row 35 to 37 are connected in parallel, it should be combined with the state of the switch contacts in the first switch contact row 34 arranged in parallel with the second switch contact row 35 to 37. Since the state of a specific switch contact in the second switch contact row 35 to 37 can be accurately specified, no practical problem occurs.

As described above, since the medication record card 1 according to the first embodiment includes a cancel button 4 for canceling the immediately preceding button operation in addition to the start button 3 and various selection buttons, an error due to an erroneous button operation is provided. There is no possibility that the information will be transmitted to the communication module 10 without cancellation information, and the reliability of the information transmitted to the communication module 10 and the host computer will be improved.

By the way, as described above, the medication recording card 1 for information recording includes a paper substrate 30, a conductive circuit 18A provided on the paper substrate 30, and a communication module 10 connected to the conductive circuit 18A via a terminal portion 39. (See FIG. 5). Of these, the paper substrate 30 has the following structure so that the device / disconnection state of the conductive circuit 18A can be kept good.

That is, as shown in FIG. 6, the paper substrate 30 has the paper substrate main body 30A made of paper and the paper substrate 30A so that the impedance between the conductive circuits 18A formed on the paper substrate 30 does not excessively decrease and the conduction / disconnection state does not become defective. It has a moisture blocking layer 30B provided on the surface of the paper substrate main body 30A on the conductive circuit 18A side.

Further, the moisture blocking layer 30B may be further provided on the surface of the paper base material body 30A opposite to the conductive circuit 18A, but it is not always necessary to provide the moisture blocking layer 30B on the surface opposite to the conductive circuit 18A. ..

The moisture blocking layer 30B has a cup absorption of 10 g / m ² or less, and is composed of a pigment layer, a UV coat layer, or a plastic layer. Of these, the pigment layer consists of a pigment layer of pigment coated paper produced by ordinary paper manufacturers, and contains white pigments such as clay and calcium carbonate. In this case, even if the paper substrate body 30A absorbs water, the pigment layer becomes a water blocking layer, and the influence of water can be suppressed.

The UV coat layer is formed on the UV curable resin coated on the paper substrate body 30A. As the coating method of the UV curable resin, methods such as offset printing, screen printing, and flexographic printing can be considered.

The plastic layer is formed by extruding a resin such as polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), or polybutylene terephthalate (PBT) onto the paper substrate body 30A. In this case, the type of resin is It doesn't matter.

As described above, the communication module 10 provided on the paper substrate 30 is an integrated type that is attached to the paper substrate 30 with the communication module 10, but the communication module 10 is independent and is connected to the paper substrate 30 at the time of use. It may be a separate type that can be separated from the paper substrate 30 after use.

<Preparation of paper board>
Next, a specific example of the paper substrate 30 will be described.
First, as shown in FIG. 7, the paper substrates 30 of Examples 1 to 4 and Comparative Examples 1 to 5 were prepared.
Of these, in the examples, an acrylic UV curable resin was applied on the paper substrate body 30A by screen printing, and UV irradiation was performed to form a coating film.
In Comparative Example 3, the paper substrate main body 30A is water-resistant.

Next, the amount of water absorbed by the cup on the moisture blocking layer 30B side of each paper substrate 30 was measured by JIS standard P8140 paper and paperboard-water absorption test method-cup method. The measurement results are shown in FIG.

<Evaluation of resistance value of paper substrate>
Next, the resistance value of the paper substrate was evaluated as follows.
A U-shaped conductive circuit 18A was printed on a paper substrate.
In this case, the conductor width of the conductive circuit was 0.5 mm, the wire spacing was 3.0 mm, and the length was 30 cm (see FIG. 9A).

Testers were applied to both ends of the conductive circuit 18A on the opening side. At this time, it was confirmed that the conductive circuit 18A was conducting and the resistance value was 100 kΩ or less.

Next, a part of the conductive circuit 18A, 5 mm in length, was cut out to form a cutout portion 18B, and a tester was applied to confirm that the conductor was not conducting, that is, the wire was broken (see FIG. 9B). ..

Here, "not conducting" means that the tester is in the over range, that is, the numerical value is 100 MΩ or more.

Next, the paper substrate 70 with a conductive circuit made of the paper substrate 30 provided with the conductive circuit 18A shown in FIG. 9B was placed in a 25 ° C. 75% RH environment for 3 hours, and immediately after being taken out, the resistance value of the conductive circuit 18A Was measured with a tester. The result is shown in FIG.

<Resistance evaluation of information recording device>
Next, an information recording device 1 including a paper substrate 30, a conductive circuit 18A, and a communication module 10 was prepared, and its resistance value was evaluated.
First, as shown in FIG. 11A, the conductive circuit 18A was printed on the paper substrate 30 to prepare the paper base material 70 with the conductive circuit. At this time, the conductor width of the conductive circuit 18A was 0.5 mm, the intervals were 3.5 mm, 4.5 mm, 5.5 mm, and the length was 20 cm.

Next, the tester was applied to the conductive circuit 18A, and it was confirmed that all the wires were conducting, that is, the resistance value was 100 KΩ or less. Next, the HS agent was printed on the module mounting portion of the conductive circuit 18A by screen printing, and the communication module 10 was mounted by heat sealing. In this way, the information recording device 1 was obtained.

Next, the communication module 10 was started to check the disconnection every minute, and it was confirmed that each wire was conducting in the initial state.

Next, one conductive circuit 18A was cut out for each group of the conductive circuit 18A by 5 mm in length, and the cut portion 18B was formed by breaking the wire.

Next, in the communication module 10, it was confirmed that the above-mentioned lead wire circuit 18A showed a disconnection state.

Next, the information recording device 1 was placed in a 25 ° C. 75% RH environment for one day and taken out to check the state of the circuit.
During storage, if the broken part was recorded as a broken state, it was evaluated as ◯, if it was recorded as a conductive state, it was evaluated as x, and if the overall evaluation was 〇, it was evaluated as acceptable, and if there was even one ×, it was evaluated as rejected. The resistance evaluation of this information recording device is shown in FIG.

As shown in FIG. 12, the paper substrate 30 used in Examples 1-4 maintained resistance even at a high temperature, and showed good results in an actual continuity test.

On the other hand, the paper substrate 30 used in Comparative Example 1-5 showed a conduction state under a high temperature, and showed an erroneous result in the continuity test.
The results of these resistance evaluations are graphed as shown in FIG.

As shown in FIG. 13, when the water absorption of the cup on the moisture blocking layer 30B side of the paper substrate 30 is 10 g / m ² or less, the paper substrate 30 exhibits an appropriate resistance value, that is, an appropriate conduction / disconnection state. I understood it.

1 Medication record card, 2 Information input surface, 3 Start button, 4 Cancel button, 5
Medicine (tablet), 6 (6a-6e) selection button, 7 (7a-7c) selection button, 10 communication module, 11 film board, 12 ASIC, 13 crystal transducer, 14 button battery, 15 speaker, 16 pad, 17 Antenna pattern, 18 conductive pattern, 18A conductive circuit, 18a grounding pattern, 30 paper substrate, 30A paper substrate body, 30B moisture blocking layer, 30a, 30b, 30c divided substrate, 30b1 first pattern surface, 30b2 second pattern surface, 30b3 3rd pattern surface, 31-37 switch contacts, 39 terminals, 40 pain level recording card, 41 start button, 42 selection button, 43 dose recording button, 44 stop button, 45 selection button, 46 start button, 47 selection button, 51-57 Switch contacts, 61, 64 creases, 62 holes (notches), 63 perforations, 70 Paper board with conductive circuit

Claims (6)

In a paper substrate for a conductive circuit in which a conductive circuit including a conducting wire is formed on the surface by printing .
Paper board body and
It is provided with a moisture blocking layer provided on the surface of the paper substrate body on the conductive circuit side.
The cup absorption on the moisture blocking layer side of the paper substrate is 10 g / m2 or less to prevent a short circuit of the conductive circuit, and the conductor width of the U-shaped conductive circuit is 0.5 mm and the conductor spacing is 3.0 mm. A paper substrate for a conductive circuit, characterized in that the conductive circuit is not short-circuited at the time . The paper substrate for a conductive circuit according to claim 1, wherein the moisture blocking layer includes any of a pigment layer, a UV coating layer, and a plastic layer. Paper substrate for conductive circuit and
A conductive circuit including a conducting wire formed by printing is provided on the surface of this paper substrate.
The paper substrate is
Paper board body and
It is provided with a moisture blocking layer provided on the surface of the paper substrate body on the conductive circuit side.
The cup absorption on the moisture blocking layer side of the paper substrate is 10 g / m2 or less to prevent a short circuit of the conductive circuit, and the conductor width of the U-shaped conductive circuit is 0.5 mm and the conductor spacing is 3.0 mm. A paper substrate with a conductive circuit, characterized in that the conductive circuit is not short-circuited at the time . Paper substrate for conductive circuit and
A conductive circuit formed by printing on the surface of this paper substrate and including a conducting wire connected to a terminal portion, and a communication module capable of wireless transmission connected to the conductive circuit via the terminal portion are provided.
The paper substrate for the conductive circuit is
Paper board body and
It is provided with a moisture blocking layer provided on the surface of the paper substrate body on the conductive circuit side.
The cup absorption on the moisture blocking layer side of the paper substrate is 10 g / m2 or less to prevent a short circuit of the conductive circuit, and the conductor width of the U-shaped conductive circuit is 0.5 mm and the conductor spacing is 3.0 mm. A sheet-shaped information recording device, characterized in that the conductive circuit is not short-circuited at the time . A part of the conductive circuit is breakable.
The sheet-shaped information recording device according to claim 4, wherein the communication module includes an IC chip that stores break position information of a conductive circuit and break time information. The conductive circuit includes a plurality of pressable selection buttons.
The sheet-shaped information recording device according to claim 4, wherein the communication module includes information for identifying the pressed selection button and an IC chip for storing the pressed time information.

Images