JP2006155414A - RFID label - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate problems caused by static electricity generated when printing on an RFID label or writing and reading electronic information.
A conductor 46 is formed on the back side surface of the inlet 45 of the mount 41 along the longitudinal direction of the mount 41 with a predetermined distance d from the periphery of the inlet 45. When the label printer performs printing on the printing label 42 and writing / reading information on / from the IC chip 43, even if the RFID label 40 generates static electricity, the static electricity is released to the housing side of the label printer through the conductor 46. be able to.
[Selection] Figure 2

Description

  The present invention relates to an RFID (Radio Frequency IDentification) label capable of writing and reading data without contact using radio waves.

  The RFID has an inlet (film-like substrate) composed of an IC chip and a planar antenna connected thereto. The IC chip is divided into four parts, that is, a storage unit, a power supply rectification unit, a transmission unit, and a reception unit. The capacity of the storage unit is 8 to 2000 bytes, and data can be rewritten any number of times.

As a communication procedure, when a planar antenna receives a radio wave from a reader / writer, an electromotive force is generated due to a resonance action (electromagnetic induction, etc.), the IC chip is activated and information in the chip is converted into a signal from the antenna. Is sent to the reader / writer. On the reader / writer side, when the signal is caught, information on the RFID side is recognized by performing data processing.

  By the way, since the contents stored in the IC chip cannot be read by human vision or a conventional barcode reader, the RFID is an RFID label integrated with a label or tag, and characters or barcodes are printed on the surface of the label. Therefore, the usage forms that can be read by human vision, OCR, barcode readers, and the like are expanding.

  On the other hand, the label printer that prints on the RFID label includes non-contact communication means (reader / writer) that communicates with the RFID in addition to the printing means. In addition, the reader / writer has a communication antenna, communicates with the RFID antenna using the communication antenna, writes information on the IC chip, and reads information recorded on the IC chip. Yes.

  By the way, when printing and writing information to an IC chip by the above-described label printer with respect to such an RFID label, the RFID label is conveyed by a rubber roller or a guide member inside the label printer.

At that time, the RFID label is in sliding contact with a rubber roller, a guide member, etc., and receives heat and pressure from the thermal head and the platen roller in the printing unit. There is a possibility that.

Here, in Patent Document 1, a first conductive material that defines an electrical attachment pad, a dielectric material that is deposited in the label region and surrounds the attachment pad, and an antenna that is deposited on the dielectric material A laminate label having a second conductive material defined and electrically connected to the attachment pad; and an inflatable material deposited in the label area, the inflatable material being inflated Proposes an RFID label configured to form a cavity for accommodating an IC chip by surrounding an attachment pad.
Japanese Patent Publication No. 2002-535758

  By the way, in the RFID label shown in Patent Document 1 described above, the laminated label is formed by performing silk screening on a releasable liner, that is, screen printing, so that the substrate is not required and is formed. However, no countermeasures against static electricity are taken.

  Therefore, when printing and writing information to the IC chip and reading information from the IC chip by the above-described label printer, the RFID label is brought into sliding contact with a guide roller, other guide members, etc. If the platen roller receives heat or pressure and is charged with static electricity, the static electricity may cause a failure of the RFID due to destruction of the IC chip or disconnection of the coil.

  In addition, if the RFID label is charged with static electricity, it is attracted to the guide roller or other guide member during conveyance accompanying the printing of the RFID label, etc., and the conveyance speed of the RFID label changes, resulting in printing misalignment or an IC chip. There is a risk that the writing failure of the information and the reading of the information from the IC chip may be defective, and it is also predicted that a paper jam will be caused.

That is, the problem to be solved by the present invention is due to destruction of the IC chip or disconnection of the coil due to static electricity when printing and writing information to the IC chip or reading information from the IC chip by the label printer. There is a possibility that an RFID failure may occur, and there is a possibility that printing misalignment or paper jam may occur during conveyance accompanying printing of an RFID label.

The RFID label of the present invention is an RFID label having an IC chip and a mount on which an inlet made of a planar antenna connected to the IC chip is disposed, and a print label attached to a surface on which the inlet of the mount is disposed. The conductor is formed on the surface on which the inlet of the mount is disposed and / or on the back surface of the mount, with a predetermined distance from the inlet, and along the longitudinal direction of the mount. To do.
The conductor may be formed around the inlet.
In the RFID label of the present invention, the conductor is formed on the surface on which the inlet of the mount is disposed and / or the back surface of the mount at a predetermined interval from the inlet and along the longitudinal direction of the mount. Static electricity generated on the label printer through the conductor even when the RFID label slides or rubs when printing on the printed label, writing information to the IC chip, or reading information from the IC chip. It can escape to the housing side via a brush or a charge eliminating roller.

  According to the RFID label of the present invention, even if the RFID label is charged with static electricity, the static electricity can be released to the label printer casing through the conductor, and the RFID malfunctions due to destruction of the IC chip or disconnection of the coil. In addition, it is possible to prevent printing misalignment, defective writing of information to the IC chip and defective reading of information from the IC chip, and it is possible to prevent the occurrence of paper jam.

  In this embodiment, a conductor is formed at a predetermined interval from the inlet on the surface on which the inlet of the mount is disposed, and is formed along the longitudinal direction of the mount, and printing on the print label and IC chip is performed by the label printer. When writing information or reading information from an IC chip, even if the RFID label is charged with static electricity, the static electricity can be released to the label printer's housing via a conductor to destroy the IC chip. RFID failure due to coil disconnection or the like is prevented, printing misalignment, information writing failure to the IC chip and information reading failure from the IC chip are prevented, and occurrence of paper jam is prevented.

Embodiments of the present invention will be described below.
FIG. 1 is a diagram showing an example of a label printer that performs printing on an RFID label of the present invention and writing information to an IC chip. FIG. 2 is an external perspective view showing an embodiment of the RFID label of the present invention. 3 is an enlarged perspective view showing the internal structure of the RFID label in FIG. 2, FIG. 4 is a perspective view showing another embodiment when the configuration of the RFID label in FIG. 2 is changed, and FIG. It is a perspective view which shows other embodiment at the time of changing the structure of a RFID label.

  The label printer shown in the figure mainly includes a supply unit 10, a reader / writer 20, and a printing unit 30.

  An RFID label 40 wound in a roll shape is attached to the supply shaft 11 of the supply unit 10. The RFID label 40 is fed out from the supply shaft 11 by the rotational drive of the platen roller 31 of the printing unit 30, and is transferred to the printing unit 30 through the reader / writer 20. A sensor 34 and a guide roller 33 are provided between the reader / writer 20 and the printing unit 30, and a detection mark (not shown) of a mount 41 (described later) of the RFID label 40 is detected by the sensor 34. The printing unit 30 starts printing based on the timing at which the sensor 34 detects the detection mark.

  The printing unit 30 includes a platen roller 31 and a thermal head 32 that are disposed to face each other. Between the platen roller 31 and the thermal head 32, the RFID label 40 fed out from the supply unit 10 and the ink ribbon 51 fed out from the supply reel 50 are supplied.

  Then, the ink of the ink ribbon 51 is dissolved by the heat of the thermal head 32, whereby the ink is transferred to the RFID label 40 and printing is performed. The RFID label 40 after printing is taken out from the take-out port 53, and the ink ribbon 51 after printing is taken up by the take-up reel 52.

  The reader / writer 20 is disposed between the supply unit 10 and the printing unit 30 and includes an antenna 21. The antenna 21 is disposed in the vicinity of the conveyance path of the RFID label 40.

  The reader / writer 20 communicates with the IC chip 43 via the antenna 21 and an antenna 44 (to be described later) of the RFID label 40, and writes information to the IC chip 43 and reads information from the IC chip 43.

Next, the RFID label 40 will be described.
As shown in FIGS. 2 and 3, the RFID label 40 includes an inlet (film-like substrate) 45 including an IC chip 43 and a planar antenna 44 connected thereto between a mount 41 and a print label 42. Are arranged at predetermined intervals. The antenna 44 is not limited to a coil shape as shown in FIGS. 2 and 3, but may be a shape other than the coil shape used in the UHF band.

  In addition, two conductors 46 made of a conductive member such as aluminum are formed on the surface of the mount 41 where the inlet 45 is disposed so as to sandwich the inlet 45 along the longitudinal direction of the mount 41. Here, the conductor 46 can be formed, for example, by sticking an aluminum foil along the longitudinal direction of the mount 41, or by vapor deposition or printing with a conductive ink such as carbon.

  Further, two conductors 46 made of a conductive member such as aluminum are formed on the back surface of the inlet 45 of the mount 41 so as to sandwich the inlet 45 along the longitudinal direction of the mount 41. Here, the conductor 46 can be formed, for example, by sticking an aluminum foil along the longitudinal direction of the mount 41, or by vapor deposition or printing with a conductive ink such as carbon.

  Further, the distance d between the conductor 46 and the inlet 45 is, for example, 1 cm or more. This is to avoid the influence of transmission / reception of radio waves on the planar antenna 44 when information is written and read by radio waves between the planar antenna 44 and the antenna 21 of the reader / writer 20. .

  Further, perforations 47 are formed on the mount 41 and the print labels 42 so that the RFID labels 40 can be cut one by one. When the cutter is mounted on the label printer, it is not necessary to form the perforation 47.

  In such a configuration, when manufacturing the RFID label 40, the conductor 46 made of a conductive member such as aluminum is sandwiched between the inlet 45 of the mount 41 along the longitudinal direction of the mount 41 on the surface on which the inlet 45 of the mount 41 is disposed. To form. Next, after the inlet 45 is disposed on the mount 41 with a predetermined interval, the print label 42 is attached to the surface of the mount 41 on which the inlet 45 is disposed. Thereafter, perforations 47 are formed at predetermined intervals.

  Further, when printing or information writing / reading is performed on the RFID label 40 having such a configuration by the above-described label printer, the platen roller 31 of the printing unit 30 is rotated as shown in FIG. Thus, the RFID label 40 is fed out from the supply shaft 11.

  At this time, communication with the IC chip 43 is performed via the antenna 21 of the reader / writer 20 and the antenna 44 of the RFID label 40, and writing of information to the IC chip 43 and reading of information from the IC chip 43 are performed. Is done.

  Next, when a detection mark (not shown) on the mount 41 of the RFID label 40 is detected by the sensor 34 between the reader / writer 20 and the printing unit 30, the print label is printed by the thermal head 32 based on the detected timing. 42 is printed through the ink ribbon 51.

  Next, the RFID label 40 after printing is taken out from the outlet 53 and cut along the perforations 47 formed on the mount 41 and the print label 42 to separate the RFID labels 40 one by one. Can do.

  Here, when the RFID label 40 is brought into sliding contact with the guide roller 33 or another guide member or receives heat or pressure from the thermal head 32 and the platen roller 31, the RFID label 40 is charged with static electricity. It can escape to the housing side of the label printer through a conductor 46 formed on the surface of the mount 41 of the label 40 on which the inlet 45 is disposed.

  As described above, in the present embodiment, the conductor 46 is formed on the surface of the mount 41 where the inlet 45 is disposed with a predetermined distance d from the inlet 45 and along the longitudinal direction of the mount 41, and the label printer is used. Even when the RFID label 40 is charged with static electricity when printing on the print label 42, writing information to the IC chip 43, or reading information from the IC chip 43, the static electricity is transferred to the label printer via the conductor 46. I let it escape to the case side.

  As a result, printing and writing / reading of information on the RFID label 40 are performed in a state in which the RFID label 40 is not charged with static electricity, thereby preventing RFID failure due to destruction of the IC chip 43 or disconnection of the planar antenna 44. be able to.

  In addition, the RFID label 40 is not attracted to the guide roller 33 or other guide members during conveyance accompanying printing or the like, so that the conveyance speed of the RFID label 40 does not change. In addition, it is possible to prevent the information writing failure and the information reading failure from the IC chip 43, and it is also possible to prevent the occurrence of paper jam.

  In the present embodiment, since the conductor 46 is formed on the surface on which the inlet 45 of the mount 41 is disposed, it is possible to avoid the influence on the print surface such as the print area of the print label 42 being narrowed.

  In this embodiment, the case where the number of the conductors 46 is two has been described. However, the number of the conductors 46 may be three or more as long as it can be spaced from the inlet 45 by a predetermined distance d.

  Further, in this embodiment, when two conductors 46 made of a conductive member such as aluminum are formed on the surface of the mount 41 where the inlet 45 is disposed so as to sandwich the inlet 45 along the longitudinal direction of the mount 41. However, the present invention is not limited to this example. As shown in FIG. 4, one conductor 46 a is provided so as to straddle one side and the other side of the mount 41 for each inlet 45 of one RFID label 40. May be formed along the longitudinal direction of the mount 41.

  In this case, the distance d between the conductor 46a and the inlet 45 is preferably, for example, 1 cm or more in order to avoid the influence of radio wave transmission / reception in the planar antenna 44, as described above.

  Further, as shown in FIG. 5, on the back surface of the inlet 45 of the mount 41, the conductor 46 b may be formed around the inlet 45 with an interval d of 1 cm or more, for example. When forming the conductor 46b, it can be formed by, for example, sticking an aluminum foil around the inlet 45, or similarly applying vapor deposition or printing with a conductive ink such as carbon around the inlet 45.

  In each of the above embodiments, the case where the conductors 46, 46a, 46b are formed on the back surface of the inlet 45 of the mount 41 has been described. However, the present invention is not limited to this example, and the conductors 46, 46a, 46b are formed on the surface of the mount 41 on the inlet 45 side. May be.

  In any case, the conductors 46, 46a, 46b, 46b, 46b, 46b, 46c, 46b, 46b, 46b, 46b, 46b, 46b, 46b, 46b, etc. The position of 46b should be considered.

  Further, the arrangement positions of the conductors 46, 46a and 46b should be taken into consideration so as not to prevent detection marks (not shown) on the back surface of the mount 41 detected by the sensor 34.

  In the conductors 46, 46 a, 46 b, the conductors 46, 46 a, 46 b may be formed on both the surface on which the inlet 45 of the mount 41 is disposed and the back surface of the mount 41.

It is a figure which shows an example of the label printer which prints with respect to the RFID label of this invention, and writes the information to an IC chip. It is an external appearance perspective view which shows one Embodiment of the RFID label of this invention. It is an expansion perspective view which shows the internal structure of the RFID label of FIG. It is a perspective view which shows other embodiment at the time of changing the structure of the RFID label of FIG. It is a perspective view which shows other embodiment at the time of changing the structure of the RFID label of FIG.

Explanation of symbols

20 Reader / Writer 21 Antenna 30 Printing Unit 31 Platen Roller 32 Thermal Head 33 Guide Roller 40 RFID Label 41 Mount 42 Print Label 43 IC Chip 44 Antenna 45 Inlet 46 Conductor 46a Conductor 46b Conductor 46b Conductor

Claims (2)

An RFID label having a mount on which an inlet consisting of an IC chip and a planar antenna connected thereto is disposed, and a print label attached to the surface on which the inlet of the mount is disposed,
An RFID is characterized in that a conductor is formed at a predetermined interval from the inlet and along a longitudinal direction of the mount on a surface on which the inlet of the mount is disposed and / or on a back surface of the mount. label. The RFID label according to claim 1, wherein the conductor is formed around the inlet.

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