JP2003187211A - Base material for paper ic card having non-contact communicating function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a base material for a paper IC card on which a non- contact IC tag label which can be used for a game and for an educational material is mounted. <P>SOLUTION: The base material 1 for the paper IC card is characterized by printing outer shapes 121, 122 of antenna patterns separated into two chips like a frame on a paper base material surface for card, defining the inside of the frame as a paint-out area by conductive materials and mounting an IC tag label 11 having a non-contact communicating function on the surface where the outer shapes of the antenna patterns are printed or a position brought into contact or approximated to both antenna patterns on the other surface. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base material for a paper IC card which can be used for games and teaching materials at low cost. Specifically, a paper card substrate is printed with an outer shape of an antenna pattern for non-contact communication in a frame shape so that the inside of the frame can be freely filled with a conductive material and an IC tag label having a non-contact communication function is attached. The present invention relates to a base material for an IC card. The purpose of the present invention is to provide free play and the like by using the function of an IC card which changes depending on how to fill with a conductive material.

[0002]

2. Description of the Related Art Gaming cards and trading cards having a contactless communication function are already known. This one is
Generally, an IC chip is attached to a plastic card,
It has a form in which oversheets are laminated in order to protect the antenna and IC chip, and an inexpensive paper base material is not used. In addition, IC cards are generally provided in a completed form, and the characteristics can be changed by allowing an end user to freely design and manufacture a part of the card from an unfinished state. Things were not offered. Japanese Patent Application No. 2001-278694 by the applicant of the present application is composed of a paper base material, but it is used by using a finished product, and its characteristics cannot be changed.

[0003]

Therefore, according to the present invention,
As an IC card, a non-contact IC card in which an IC tag label is attached to an antenna pattern is used, and the card base material is also paper. In the IC card, the antenna pattern is provided only in the outer frame shape, and the user can freely set the inside of the frame. By filling it in, the characteristics are changed so that you can enjoy playing freely.

[0004]

A first aspect of the present invention for solving the above-mentioned problems is to print the outer shape of an antenna pattern separated into two pieces in a frame shape on a paper base surface for a card, A non-contact communication function, characterized in that the inside of the frame is a filled area with a conductive material, and an IC tag label having a non-contact communication function is attached to a position on which the antenna pattern outer shape is printed and which contacts both antenna patterns. And a base material for a paper IC card having In this case, a paper IC with an IC tag label attached to the antenna pattern surface
It becomes a card.

The second aspect of the present invention for solving the above-mentioned problems is to print the outer shape of the antenna pattern, which is separated into two pieces, in the shape of a frame on the surface of a paper base material for a card, and to make a conductive material inside the frame. An IC tag label having a non-contact communication function is attached to a position where the outer shape of the antenna pattern is not printed and which is close to both antenna patterns as a filled area by For the base material. In this case, the paper IC card has an IC tag label attached on the opposite side of the antenna pattern.

In the above, the frame-shaped printing of the outer shape of the antenna pattern may be printed with conductive ink, or an IC tag label having a non-contact communication function may be mounted in the recessed hole provided in the paper base material. Further, the conductive material, if coated with a writing instrument using a pencil or pencil lead,
The antenna pattern can be easily formed.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A substrate for a paper IC card of the present invention will be described with reference to the drawings. FIG. 1 shows a first embodiment of a paper IC card having a non-contact communication function, and FIG.
2nd Embodiment is shown. In each case, (A) is a perspective view from the 11 side of the IC tag label, and (B) is A- of (A).
The sectional view in the A line is shown. FIG. 3 shows a detailed cross section inside the recessed hole in FIG. The scale in the thickness direction in each cross-sectional view is shown enlarged. 4 is shown in FIG.
FIG. 7A shows a state after the inside of the outer shape of the antenna pattern is filled.

In the first embodiment shown in FIG. 1, the outer shapes 121 and 122 of the antenna pattern are printed in a frame shape on the side of the IC tag label 11 of the paper IC card 1. The outer shape of the antenna pattern is two right-angled triangular patterns 121,
Although illustrated at 122, the shape is not limited to a triangular shape and can be any shape as long as it functions as an antenna.
The recessed hole 3 is not essential, but when the IC tag label 11 is mounted in the recessed hole, the flatness of the card can be improved. When the concave hole 3 is provided, it is provided at a position where both antenna pattern outer shapes are close to each other, and the IC tag label 11 is mounted in the concave hole so as to contact the antenna pattern outer shape.

In the second embodiment shown in FIG. 2, on the surface of the paper IC card substrate 1 opposite to the IC tag label 11 side,
The outer shapes 121 and 122 of the antenna pattern are printed. Therefore, the outer shape of the antenna pattern is shown by a dotted line. Then, the IC tag label 11 is mounted on the surface of the paper base 1b opposite to the outer shapes 121 and 122 of the antenna patterns, at a position where both antenna patterns are close to each other. The IC tag label 11 has a conductive antenna I
An electrostatic coupling type non-contact IC tag "interposer" that functions by attaching a label with a C chip is used. In the second embodiment, when the IC card is placed on the reader / writer, there is an advantage that the distance between the antennas becomes short and communication becomes easy. In this case, the IC chip 111 and the antenna patterns 121 and 122 are not electrically connected directly to each other, but can function as an antenna by being electrostatically coupled as described later.

The outer shapes 121 and 122 of the antenna pattern may be printed by using conductive ink or simply by using a non-conductive ink showing the outer shape. This is because it simply specifies the area to be filled. However,
In the case of the first embodiment, it is not possible to paint the antenna on the lower surface of the IC tag label later, and even in the second embodiment, the lower surface of the IC tag label is used for reliable connection. Print only the part that will become the conductive ink in advance so that the antenna pattern of the IC tag label contacts or approaches the frame shape.
It is preferable to attach a tag label.

When the outer shapes 121 and 122 of the antenna pattern are, for example, conductive offset printing, ink made of a conductive material, a resin, and a solvent is used. Examples of the resin include rosin-modified resins, alkyd resins, resins for oil-based inks such as petroleum resins, acrylic oligomers, ionizing radiation curing resins such as monomers, and the like. As the conductive material powder, powder of conductive carbon, gold, silver, tin oxide, antimony oxide or the like is used, but from the viewpoint of economy, conductive carbon or the like is preferably used. As a solvent,
Examples thereof include high boiling point petroleum-based solvents and higher alcohols.

The conductive offset ink comprises a resin, a conductive powder such as a conductive carbon and a solvent, and the solid content of the resin is 10% to 50% by weight, preferably 20% to 4%.
The ink viscosity is 10% by weight, the conductive material is 10% by weight to 40% by weight, preferably 15% by weight to 30% by weight, and the mixture is mixed by using a dispersing machine such as a ball mill, a sand mill or a three roll mill to obtain an ink viscosity of 10%. ~ 30Pa · S (L-type viscometer)
To be a conductive offset ink. The conductive pattern can be printed by a silk screen or a gravure method, and various conductive inks used for printed wiring are commercially available.

Although only the outer shapes 121 and 122 of the antenna pattern made of the conductive ink can function as an antenna to some extent, the wider the antenna area, the better the characteristics. Therefore, in the present invention, the outer shape 121,
The inside of 122 is filled with a conductive material so as to have a function of an antenna. Although a pencil is a familiar and common material as a conductive material, a mechanical pencil or the like using a pencil lead may of course be used. However,
There is a difference in conductivity depending on the filling method. Other conductive materials include conductive paint. A pencil is a hardened one (9H, 8) made by solidifying graphite and clay.
H) has more clay, and soft (6B) has the largest amount of graphite. Even black crayon and ballpoint pen inks containing carbon generally do not form a good antenna pattern when dispersed in a vehicle or wax because the carbon pigments do not form a continuous conductive path. Similarly, silver felt-tip pens and markers do not provide conductivity.

As shown in FIG. 4, the antenna pattern outer shape 12
The inside of 1,122 is filled with a pencil or the like 121P, 122
After setting P, the original function of the antenna is acquired. Figure 5
FIG. 4 is a diagram showing a relationship between a resistance value of a filled surface and a communication distance of a non-contact IC card. As shown in FIG. 5, if the surface resistivity of the antenna surface is 10 ⁵ Ω / cm ² or less, 1
Good reading and writing are possible with the original communication distance of about ⁵ cm, but it is recognized that the communication distance becomes shorter at 10 ⁵ Ω / cm ² or more. When sufficiently filled with a pencil, the resistance value can be 10 ³ Ω / cm ² or less. In this case, the IC chip mounting label
"BiStatix" (manufactured by Motorola) is used, and "BXR-610" manufactured by Motorola is used as the reader / writer. In addition, the surface specific resistance value means a surface resistance between opposite sides of the surface of the insulator, considering a 1 cm square surface.

As shown in FIG. 3, when the recessed hole 3 is provided in the paper base material 1b, the first recess 31 into which the IC chip 111 of the IC tag label is fitted and the depth corresponding to the thickness of the IC tag label base material 11b. The second concave portion 32 and the second concave portion 32 can be formed to have two levels of depth. IC chip 111 itself
Since there is a thickness of about 0.2 to 0.5 mm, the shape of the IC chip 111 does not appear on the surface of the label when the recessed holes 3 are formed in the depth of two steps in this way, and therefore the appearance is visually improved. It will be preferable. As shown in FIG. 3, the IC tag label 11 is also provided with small antennas 112 and 113, and bumps (not shown) of the IC chip 111 are connected to the antennas. The antennas 112 and 113 of the IC tag label 11 and the antenna patterns 121 and 12
The two are adhered by an anisotropic conductive adhesive (marked with X) or the like so that they are conducted only in the vertical direction with respect to the label. Therefore, in the case of the first embodiment, the IC chip 111 and the antenna patterns 121 and 122 are electrically connected.

The recess 3 can be formed by embossing, spot facing, or a combination thereof. In the case of embossing, the antenna pattern is pressed but is not cut off, so it is preferable when forming the recessed hole of the first embodiment. Even when the recess 3 has a two-step depth, it can be processed by a single pressing by the embossing die, and there is an advantage that the processing speed is high. On the other hand, when the boring by the counterbore processing is used in the first embodiment, the antenna pattern is scraped off or burned off, so that it is preferably used in the second embodiment in which the antenna surface is not cut.

Although not shown in FIGS. 1 and 2, the paper base material 1b for the card and the outer shape 12 of the antenna pattern are used.
1, 122, and one or both surfaces of the paper base surface on the side without the antenna pattern, instructions for decorative printing or filling on the paper IC card can be printed and provided. When a paper IC card is used for a game, a character or the like is printed, and data relating to the function or power (output) of the character is recorded in the IC chip, so that a unique game can be enjoyed. In these games, the reader / writer can be enjoyed as a ring or a stadium in the combination of a paper IC card and the reader / writer.

The paper base material of the card includes coated paper, high-quality paper,
Card paper, resin-coated paper, resin-impregnated paper, synthetic paper, etc. can be used. In order to provide the recessed hole 3 and accommodate the IC tag label 11, it is preferable that the thickness of the paper is about 0.5 mm. Further, in order to maintain the insulation between the two pieces of antenna patterns, it is necessary to use paper having low hygroscopicity, and it is also preferable to apply a water resistant coating. When the recessed holes are formed by embossing, it is preferable to use paper having a characteristic that the embossing does not move back (irreversible) as much as possible.

FIG. 6 shows the first embodiment, and FIG. 7 shows the second.
7 shows a transmission / reception circuit between the IC card and the reader / writer in the embodiment of FIG. Correctly, either one of the antenna patterns 121 and 122 in the paper IC card performs the function on the ground side, and the other antenna pattern performs the receiving function. For example, if either one of the antenna patterns touches the human hand, the antenna pattern is on the ground side. In the case of FIGS. 6 and 7, the antenna pattern 122 functions as a ground on the side having a low resistance with respect to the ground. Then,
This means that the antenna pattern 121 receives the radio wave from the reader / writer 2 and also transmits the radio wave from the paper IC card.

6 and 7, in the case of FIG. 6, the antenna pattern 121 and the antenna pattern 112 of the IC tag label and the antenna pattern 122 and the antenna pattern 113 are directly connected, but in FIG. There is a difference in that the electric couplings C1 and C2 are made. AC signals can be received by capacitive coupling. Although the paper base material 1b plays a role of a dielectric between the antenna patterns, it is recognized that there is no remarkable difference in the non-contact communication function between the two under a certain condition. However, the thickness of the paper layer between the antennas is preferably about 0.2 to 0.8 mm.

The reader / writer antenna 21 for reading is
Radio waves having a resonance frequency are transmitted to the non-contact IC tag.
Usually 125-135kHz (medium wave), 13.56MH
A frequency band such as z, 2.45 GHz (microwave) is used. 125-135 kHz and 13.56 MHz are often used for non-contact IC tags and IC cards, but even if they have the same frequency, they cannot be shared because the communication systems differ from one company to another. When reading response waves from a large number of cards, data collision may occur,
It is necessary to avoid it, and various methods for avoiding collisions and reading are known.

[0022]

Embodiments of the present invention will be described with reference to FIGS. A character is printed by process printing (4C) by offset printing on one side of a 0.76 mm thick water resistant paper (“New DV” manufactured by Hokuetsu Paper Mills Ltd.),
Then, the conductive offset ink was used to print the two pieces of the antenna pattern outer shapes 121 and 122 as shown in FIG. 1 on the non-printed surface.

A second recess (area 16 × 16 m) is provided at a position where the outer shapes of both antenna patterns 121 and 122 are close to each other.
m, depth 120 μm) and an embossing die capable of forming a first recess (area 4 × 4 mm, depth 360 μm) in the center thereof were pressed to form the recessed hole 3 from the antenna surface side. This printed and embossed base material is cut into a sheet with 5 × 5 = 25 faces, and then an IC tag label with an anisotropic conductive adhesive (IC manufactured by Motorola Co., Ltd.) is placed in the concave hole 3 of the paper card base material. The chip mounting label "BiStatix") was aligned and mounted. A labeler was used for mounting. That is,
IC tag label antenna pattern outline 112, 113
And the outer shape of the antenna pattern 121, 12 on the surface of the card paper base material
The two pieces were aligned and attached so that they came into contact with each other and overlapped. The IC chip itself had a thickness of 350 μm, and the label substrate had a thickness of 100 μm. After mounting the IC tag label, punch out the card size and separate into individual ICs
It was used as a base material for cards.

On this paper IC card base material, the functions and powers corresponding to the characters of the respective designs were encoded by using the IC card issuing processing device. The communication frequency of the non-contact IC tag label is 1
The frequency is 25 kHz and the memory capacity is 1 kbit. The user area is approximately 800 bits, and up to 100 alphanumeric characters can be recorded. The insides of the antenna outer shapes 121 and 122 of the paper IC card substrate 1 were sufficiently filled with a pencil (6B) manufactured by Tombow Pencil Co., Ltd. The surface specific resistance value of the filled surface was 10 ³ Ω / cm ² (measurement device; “MCP-T60” manufactured by Mitsubishi Chemical Corporation).
0 ”). Using this paper IC card as a reader / writer,
When the reading was performed using (“BXR-610”) manufactured by Motorola, good non-contact communication was confirmed.

In the present specification, the uses of the base material for the paper IC card and the paper IC card after painting are mainly described as games, but the teaching materials for science and the trading for learning the non-contact communication function are described. It is also very useful as a card.

[0026]

As described above, the paper IC card base material having the non-contact communication function of the present invention has a configuration in which the outer shape of the antenna pattern is provided on the paper base material and the IC tag label is attached. The cost can be reduced and the IC card can be used for various general-purpose and disposable applications. Also, since the inside of the antenna pattern can be painted out and put into practical use immediately, it can be used for various purposes such as game applications. If it is a toy by processing and creating it by itself,
It is possible to create original products for end users. As a science teaching material, more concrete understanding of non-contact communication can be improved.

[Brief description of drawings]

FIG. 1 shows a first embodiment of a paper IC card substrate having a non-contact communication function.

FIG. 2 shows a second embodiment of a paper IC card substrate having a non-contact communication function.

FIG. 3 shows a detailed cross section in the recess in FIG.

FIG. 4 shows a state after the interior of the antenna pattern is filled in in FIG.

FIG. 5 is a diagram showing a relationship between a resistance value of a filled surface and a communication distance of a non-contact IC card.

FIG. 6 shows a transmission / reception circuit between a card and a reader / writer according to the first embodiment.

FIG. 7 shows a transmission / reception circuit between a card and a reader / writer according to the second embodiment.

[Explanation of symbols]

1 Paper IC Card Base Material 1b Paper Base Material 2 Reader / Writer 3 Recessed Hole 11 IC Tag Label 12 Antenna Pattern, Antenna Pattern Outline 21 Reader / Writer Antenna 31 First Recess 32 Second Recess 111 111 IC Chip 112, 113 Small Antennas 121 and 122 Antenna pattern, antenna pattern outline

   ─────────────────────────────────────────────────── ─── Continued front page    F-term (reference) 2C005 MA40 MB09 MB10 NA08 NA10                       PA04 PA21 RA15 RA30                 5B035 BA03 BB09 CA01 CA23                 5J046 AA01 AA02 AA04 AB11 PA07

Claims (5)

[Claims] 1. A surface on which an antenna pattern outer shape is printed by printing a separate antenna pattern outer shape into a frame shape on a paper base surface for a card, and making the inside of the frame a filled area with a conductive material. And an IC tag label having a non-contact communication function are attached to positions contacting both antenna patterns.
Base material for C cards. 2. A surface of a card base material for a card, on which a separate antenna pattern outline is printed in a frame shape, and the inside of the frame is a filled area with a conductive material, and the antenna pattern outline is not printed. A base material for a paper IC card having a non-contact communication function, wherein an IC tag label having a non-contact communication function is attached at a position close to both antenna patterns. 3. The base material for a paper IC card having a non-contact communication function according to claim 1, wherein frame-shaped printing of the outer shape of the antenna pattern is printed with conductive ink. 4. A paper IC having a non-contact communication function according to claim 1, wherein an IC tag label having a non-contact communication function is mounted in a concave hole provided in a paper base material.
Base material for cards. 5. The base material for a paper IC card having a non-contact communication function according to claim 1, wherein the conductive material is coated with a writing tool using a pencil or a pencil lead.