JP4916841B2 - Non-contact data transmitter / receiver - Google Patents

Description

 The present invention is a non-contact type that can receive information from outside and transmit information to the outside in a non-contact state using an electromagnetic wave as a medium, such as an information recording medium for RFID (Radio Frequency IDentification). The present invention relates to a data receiving / transmitting body, and more particularly, to a non-contact type data receiving / transmitting body which is directly attached to a metal so as to receive information from the outside and transmit information to the outside in a non-contact state.

An IC label, which is an example of a non-contact type data receiving / transmitting body, includes an inlet composed of a base material, an antenna provided on one side of the substrate, and an IC chip connected to each other. When an electromagnetic wave from the apparatus is received, an electromotive force is generated in the antenna by a resonance action, and the IC chip in the IC label is activated by this electromotive force, and information in the IC chip is converted into a signal, and this signal is transmitted from the antenna of the IC label. Called.
A signal transmitted from the IC label is received by the antenna of the information writing / reading device, sent to the data processing device via the controller, and data processing such as identification is performed (for example, see Patent Document 1).
JP 2001-005936 A

In order for this IC label to operate, the electromagnetic wave transmitted from the information writing / reading device must be sufficiently taken into the antenna of the IC label, and an electromotive force greater than the operating electromotive force of the IC chip must be induced.
However, when the IC label is applied to a stick-shaped object or a person, if the object or person to be attached contains moisture, the magnetic flux across the antenna of the IC label decreases and the induced electromotive force decreases. There is a problem that the IC chip does not operate because the operating electromotive force of the IC chip is lower, and the read / write accuracy and the read / write distance are reduced in the IC label.

 The present invention has been made in view of the above circumstances, and is a non-contact type data transmission / reception having a wide read / write directivity and a long read / write distance while being directly attached to an object containing moisture. The purpose is to provide a body.

The non-contact type data transmitting / receiving body of the present invention includes a first base material, an adhesive layer provided on at least both ends in the longitudinal direction on one surface of the first base material, and the adhesive layer. A non-contact type data receiver / transmitter comprising: a second base material stacked on the first base material; and an antenna and an IC chip provided on the second base material and connected to each other. Part of the portion of the material provided with the antenna is folded on the first base material, the folding of the second base material is released, and the second base material is used as the first base material. It is characterized in that it is used with a distance .

 The non-contact type data transmitting / receiving body of the present invention includes a first base material, an adhesive layer provided on at least both ends in the longitudinal direction on one surface of the first base material, and the adhesive layer. A non-contact type data receiver / transmitter comprising: a second base material stacked on the first base material; and an antenna and an IC chip provided on the second base material and connected to each other. Since the part of the material provided with the antenna was folded on the first base material, at least the part of the second base material provided with the antenna was separated from the first base material. In this state, the contactless data receiving / transmitting body can be fixed to the object. As a result, the antenna has directivity in a direction perpendicular to the first base material and the second base material. Therefore, the non-contact type data receiving / transmitting body of the present invention has a wide read / write directivity and a long read / write distance in a state where it is directly attached to a stick-like object containing moisture.

The best mode of the contactless data receiving / transmitting body of the present invention will be described.
This embodiment is specifically described for better understanding of the gist of the invention, and does not limit the present invention unless otherwise specified.

(1) First Embodiment FIG. 1 is a schematic view showing a first embodiment of a non-contact type data receiving / transmitting body of the present invention, (a) is a plan view, and (b) is a plan view of (a). It is sectional drawing which follows the AA line.
In FIG. 1, reference numeral 10 denotes a non-contact type data transmitting / receiving body, 11 denotes a first base material, 12 denotes an adhesive layer, 13 denotes a second base material, 14 denotes an IC chip, and 15 denotes an antenna.
The non-contact type data transmitting / receiving body 10 of this embodiment includes a first base material 11, an adhesive layer 12 provided at both ends in the longitudinal direction on one surface 11 a of the first base material 11, and an adhesive layer 12. The second base 13 is stacked on the first base 11 via the antenna, and the antenna 15 and the IC chip 14 are provided on the second base 13 and connected to each other.

Further, in the non-contact type data receiving / transmitting body 10, a part (hereinafter also referred to as “folded portion”) 13 a, 13 a of the second base material 13 provided with the antenna 15 is the first base material 11. Above, it is folded in three in the thickness direction. Note that the first base materials 11 forming the folded portion 13a may be simply folded on each other, or may be bonded to each other via an adhesive that can be peeled off and cannot be re-applied.
In addition, the IC chip 14 and the antenna 15 are provided in the second base material 13, the IC chip 14 is arranged in the central portion of the second base material 13, and the antenna 15 is arranged on the second base material 13 around the IC chip 14. A dipole antenna arranged to extend to both ends is formed.

 Further, when the portion of the second base material 13 provided with the IC chip 14 and the antenna 15 is separated from the first base material 11, the distance between the first base material 11 and the antenna 15 is determined by the antenna 15. It is preferably one quarter of the wavelength of the electromagnetic wave that resonates.

 As the first base material 11 and the second base material 13, at least on the surface layer portion, a woven fabric, a non-woven fabric, a mat, paper or the like made of inorganic fibers such as glass fiber and alumina fiber, or a combination thereof, polyester fiber, Woven fabrics, non-woven fabrics, mats, paper, etc. made of organic fibers such as polyamide fibers, or combinations thereof, or composite substrates formed by impregnating them with resin varnish, polyamide resin substrates, polyester resins Substrate, polyolefin resin substrate, polyimide resin substrate, ethylene-vinyl alcohol copolymer substrate, polyvinyl alcohol resin substrate, polyvinyl chloride resin substrate, polyvinylidene chloride resin substrate, polystyrene Resin substrate, polycarbonate resin substrate, acrylonitrile butadiene styrene copolymer resin substrate Plastic base materials such as polyethersulfone-based resin base materials, or mat processing, corona discharge processing, plasma processing, ultraviolet irradiation processing, electron beam irradiation processing, flame plasma processing, ozone processing, or various types of easy adhesion processing. It is selected from known ones such as those subjected to surface treatment. Among these, an electrically insulating film or sheet made of polyethylene terephthalate or polyimide is preferably used.

 As the adhesive forming the adhesive layer 12, a known non-peelable adhesive is used.

 The IC chip 14 is not particularly limited and may be a non-contact IC tag, a non-contact IC label, or a non-contact type as long as information can be written and read out in a non-contact state via the antenna 15. Anything applicable to RFID media such as an IC card can be used.

  The antenna 15 is formed by screen printing in a predetermined pattern using a polymer type conductive ink on the second base material 13, or is formed by etching a conductive foil.

  As the polymer type conductive ink in the present invention, for example, conductive fine particles such as silver powder, gold powder, platinum powder, aluminum powder, palladium powder, rhodium powder, carbon powder (carbon black, carbon nanotube, etc.) are mixed in the resin composition. The thing which was done is mentioned.

If a thermosetting resin is used as the resin composition, the polymer conductive ink becomes a thermosetting type capable of forming a coating film forming the antenna 15 at 200 ° C. or less, for example, about 100 to 150 ° C. The electric current path of the coating film forming the antenna 15 is formed when the conductive fine particles forming the coating film contact each other, and the resistance value of the coating film is on the order of 10 ⁻⁵ Ω · cm.
Further, as the polymer type conductive ink in the present invention, known ones such as a photo-curing type, a permeation drying type, and a solvent volatilization type are used in addition to the thermosetting type.

  The photocurable polymer type conductive ink contains a photocurable resin in the resin composition and has a short curing time, so that the production efficiency can be improved. Examples of the photocurable polymer conductive ink include, for example, a thermoplastic resin alone or a blend resin composition of a thermoplastic resin and a crosslinkable resin (especially a crosslinkable resin composed of polyester and isocyanate) and 60 masses of conductive fine particles. % Or more and 10% by mass or more of a polyester resin, that is, a solvent volatile type or a crosslinked / thermoplastic combined type (however, the thermoplastic type is 50% by mass or more), or a thermoplastic resin Or a blend resin composition of a thermoplastic resin and a crosslinkable resin (especially a crosslinkable resin composed of polyester and isocyanate), in which a polyester resin is blended in an amount of 10% by mass or more, that is, a crosslinkable type or a crosslinkable / heatable type A plastic combination type is preferably used.

 On the other hand, examples of the conductive foil forming the antenna 15 include copper foil, silver foil, gold foil, platinum foil, and aluminum foil.

 In this embodiment, the non-contact type data receiving / transmitting body 10 in which the adhesive layers 12 are provided on both ends in the longitudinal direction of the one surface 11a of the first base material 11 is illustrated, but the non-contact type data of the present invention is illustrated. The transmission / reception body is not limited to this. In the non-contact type data transmitting / receiving body of the present invention, an adhesive layer may be provided on the entire surface of one surface of the first base material. In this case, an adhesive that can be peeled off and cannot be re-applied is used as an adhesive that forms an adhesive layer facing the portion of the second substrate 13 on which the IC chip 14 and the antenna 15 are provided.

Moreover, in this embodiment, although the non-contact type data receiving / transmitting body 10 in which the IC chip 14 and the antenna 15 are provided in the second base material 13 is illustrated, the non-contact type data receiving / transmitting body of the present invention is shown in this. It is not limited. In the non-contact type data receiving / transmitting body of the present invention, the IC chip and the antenna are provided on the surface of the second substrate facing the first substrate, or on the surface opposite to the facing surface. Also good.
Moreover, in this embodiment, the folding part 13a, 13a of the part in which the antenna 15 of the second base material 13 is provided is folded on the first base material 11 in three in the thickness direction. Although the non-contact type data receiving / transmitting body 10 is illustrated, the non-contact type data receiving / transmitting body of the present invention is not limited to this. In the non-contact type data receiving / transmitting body of the present invention, the folded portion may be folded in an odd number of five or more folds.

 Furthermore, in this embodiment, the non-contact type data receiving / transmitting body 10 in which the antenna 15 is a dipole antenna centered on the IC chip 14 is illustrated, but the non-contact type data receiving / transmitting body of the present invention is not limited to this. In the contactless data receiving / transmitting body of the present invention, the antenna may be a monopole antenna, a coil antenna, or the like.

Next, with reference to FIG. 2, as an example of the operation of the non-contact type data receiving / transmitting body of this embodiment, the non-contact type data receiving / transmitting body is wound around a rod-shaped object containing moisture. explain.
FIG. 2 is a schematic cross-sectional view showing an example of a method of using the contactless data receiving / transmitting body of the present invention in the first embodiment.

First, as shown in FIG. 2B, the portion of the second base material 13 on which the IC chip 14 and the antenna 15 are provided is separated from the first base material 11.
Next, as shown in FIG. 2 (c), the non-contact type data receiving / transmitting body 10 is wound around the object (not shown) with the second base material 13 outside, and an adhesive. By sticking the other end portion of the first base material 11 to one end portion of the second base material 13 using an adhesive, a magnet, a snap, a button, a staple, an adhesive tape, etc., a non-contact type The data receiving / transmitting body 10 is wound.

Thereby, the non-contact type data receiving / transmitting body 10 is fixed to the object in a state where the portion of the second base material 13 where the IC chip 14 and the antenna 15 are provided is separated from the first base material 11. . The antenna 15 has directivity in a direction perpendicular to the first base material 11 and the second base material 13 (arrow direction in FIG. 2C). Therefore, in this state, when the antenna of the information writing / reading device is opposed to the non-contact type data receiving / transmitting body 10, a current flows through the antenna 15 by electromagnetic induction from the information writing / reading device.
Then, when the current flowing through the antenna 15 is supplied to the IC chip 14, information is written from the information writing / reading device to the IC chip 14 via the antenna 15, or information written to the IC chip 14. Is read by the information writing / reading device via the antenna 15.

  In addition, the distance which separates the part provided with the IC chip 14 and the antenna 15 of the second base material 13 of the non-contact type data receiving / transmitting body 10 from the first base material 11 is not particularly limited. If the portion of the base 13 where the IC chip 14 and the antenna 15 are provided is not in contact with the first base 11, information is written from the information writing / reading device to the IC chip 14 via the antenna 15, Information written in the chip 14 can be read out by the information writing / reading device via the antenna 15.

 As described above, the non-contact type data receiving / transmitting body 10 has a wide read / write directivity and a long read / write distance in a state where it is directly attached to a stick-like object containing moisture.

(2) Second Embodiment FIG. 3 is a schematic cross-sectional view showing a second embodiment of the contactless data receiving / transmitting body of the present invention.
The non-contact type data transmitting / receiving body 20 of this embodiment includes a first base material 21, an adhesive layer 22 provided at both ends in the longitudinal direction on one surface 21 a of the first base material 21, and an adhesive layer 22. The second base material 23 stacked on the first base material 21 with the antenna 25 and the IC chip 24 provided on the second base material 23 connected to each other.

 The non-contact type data receiving / transmitting body 20 of this embodiment is different from the non-contact type data receiving / transmitting body 10 of the first embodiment described above in that the IC chip 24 is arranged on one end side of the second substrate 23. The antenna 25 is a monopole antenna disposed so as to extend to the other end portion side of the second base material 23 with the IC chip 24 as a base end.

(3) Third Embodiment FIG. 4 is a schematic cross-sectional view showing a third embodiment of the contactless data receiving / transmitting body of the present invention.
The non-contact type data transmitting / receiving body 30 of this embodiment includes a first base 31, an adhesive layer 32 provided at both ends in the longitudinal direction on one surface 31 a of the first base 31, and an adhesive layer 32. The second base material 33 stacked on the first base material 31 via the antenna, the antenna 35 and the IC chip 34 provided on the second base material 33 and connected to each other.

 The non-contact type data receiving / transmitting body 30 of this embodiment is different from the non-contact type data receiving / transmitting body 10 of the first embodiment described above in that the portion of the second base material 33 provided with the antenna 25 is folded. The overlapping portions 33a and 33a are points that are folded in five in the longitudinal direction on the first base material 31.

 In this embodiment, the folding portions 33a and 33a of the portion of the second base material 33 where the antenna 25 is provided are folded on the first base material 31 in five in the longitudinal direction. Although the non-contact type data receiving / transmitting body 30 is illustrated, the non-contact type data receiving / transmitting body of the present invention is not limited to this. In the non-contact type data receiving / transmitting body of the present invention, the folded portion may be folded in three or an odd number of times more than seven folded.

(4) Fourth Embodiment FIG. 5 is a schematic cross-sectional view showing a fourth embodiment of the contactless data receiving / transmitting body of the present invention and a method for using the fourth embodiment.
The non-contact type data transmitting / receiving body 40 of this embodiment includes a first base material 41, an adhesive layer 42 provided at both ends in the longitudinal direction on one surface 41a of the first base material 41, and an adhesive layer 42. The second base material 43 stacked on the first base material 41, the antenna 45 and the IC chip 44 provided on the second base material 43 and connected to each other.

 The non-contact type data receiving / transmitting body 40 of this embodiment is different from the non-contact type data receiving / transmitting body 10 of the first embodiment described above in that the IC chip 44 of the second base material 43 is provided. The vicinity thereof is fixed to one surface 41a of the first base material 41.

Even in the non-contact type data receiving / transmitting body 40 of this embodiment, the portion of the second base material 43 provided with the IC chip 44 and the antenna 45 can be separated from the first base material 41.
When the portion of the second base material 43 on which the IC chip 44 and the antenna 45 are provided is separated from the first base material 41, the distance between the first base material 41 and the antenna 45 is such that the antenna 45 resonates. It is preferable that it is 1/4 of the wavelength of electromagnetic waves.

Next, referring to FIG. 5, as an example of the operation of the non-contact type data receiving / transmitting body of this embodiment, the non-contact type data receiving / transmitting body is wound around a rod-shaped object containing moisture. explain.
First, as shown in FIG. 5B, the portion of the second base material 43 provided with the antenna 45 is separated from the first base material 41.
Next, as shown in FIG. 5C, the non-contact type data receiving / transmitting body 40 is wound around the object (not shown) with the second base material 43 outside, and an adhesive. By sticking the other end portion of the first base material 41 to one end portion of the second base material 43 using an adhesive, a magnet, a snap, a button, a staple, an adhesive tape, etc., a non-contact type The data receiving / transmitting body 40 is wound.

Thereby, the non-contact type data receiving / transmitting body 40 is fixed to the object in a state where the portion of the second base material 43 provided with the antenna 45 is separated from the first base material 41. The antenna 45 has directivity in a direction perpendicular to the first base material 41 and the second base material 43 (the arrow direction in FIG. 5C). Therefore, in this state, when the antenna of the information writing / reading device is opposed to the non-contact type data transmitting / receiving body 40, a current flows through the antenna 45 by electromagnetic induction from the information writing / reading device.
Then, when the current flowing through the antenna 45 is supplied to the IC chip 44, information is written from the information writing / reading device to the IC chip 44 via the antenna 45, or information written to the IC chip 44. Is read out by the information writing / reading device via the antenna 45.

  In addition, the distance which separates the part provided with the antenna 45 of the second base material 43 of the non-contact type data receiving / transmitting body 40 from the first base material 41 is not particularly limited. If the portion provided with the antenna 45 is not in contact with the first base material 41, information is written to the IC chip 44 from the information writing / reading device via the antenna 45, or information written to the IC chip 44 is The information can be read out by the information writing / reading device via the antenna 45.

 As described above, the non-contact type data receiving / transmitting body 40 has a high read / write directivity and a long read / write distance in a state where it is directly attached to a stick-like object containing moisture.

 The non-contact type data receiving / transmitting body of the present invention can be applied not only to a metal article but also to an article that emits electromagnetic waves.

It is the schematic which shows 1st embodiment of the non-contact-type data transmission / reception body of this invention, (a) is a top view, (b) is sectional drawing which follows the AA line of (a). It is a schematic sectional drawing which shows an example of the usage method in 1st embodiment of the non-contact-type data receiver / transmitter of this invention. It is a schematic sectional drawing which shows 2nd embodiment of the non-contact-type data transmission / reception body of this invention. It is a schematic sectional drawing which shows 3rd embodiment of the non-contact-type data transmission / reception body of this invention. It is a schematic sectional drawing which shows 4th embodiment of the non-contact-type data transmission / reception body of this invention, and its usage.

Explanation of symbols

10, 20, 30, 40 ... non-contact type data receiving / transmitting body, 11, 21, 31, 41 ... first base material, 12, 22, 32, 42 ... adhesive layer, 13, 23, 33, 43 ... second substrate, 14, 24, 34, 44 ... IC chip, 15, 25, 35, 45 ... antenna.

Claims (1)

A first base material, an adhesive layer provided on at least both ends in the longitudinal direction on one surface of the first base material, and a second group stacked on the first base material via the adhesive layer A contactless data receiving and transmitting body comprising a material, and an antenna and an IC chip provided on the second base material and connected to each other,
A part of the portion of the second base material provided with the antenna is folded on the first base material ,
The non-contact type data receiving / transmitting body , wherein the second base material is released from being folded and the second base material is used apart from the first base material .

Images