WO2013005584A1 - Rfid用インレットアンテナ及びそれを用いたrfid - Google Patents
Rfid用インレットアンテナ及びそれを用いたrfid Download PDFInfo
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- WO2013005584A1 WO2013005584A1 PCT/JP2012/066013 JP2012066013W WO2013005584A1 WO 2013005584 A1 WO2013005584 A1 WO 2013005584A1 JP 2012066013 W JP2012066013 W JP 2012066013W WO 2013005584 A1 WO2013005584 A1 WO 2013005584A1
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- WIPO (PCT)
- Prior art keywords
- rfid
- base film
- inlet antenna
- metal circuit
- adhesive
- Prior art date
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/073—Special arrangements for circuits, e.g. for protecting identification code in memory
- G06K19/07309—Means for preventing undesired reading or writing from or onto record carriers
- G06K19/07372—Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit
- G06K19/07381—Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit with deactivation or otherwise incapacitation of at least a part of the circuit upon detected tampering
- G06K19/0739—Means for preventing undesired reading or writing from or onto record carriers by detecting tampering with the circuit with deactivation or otherwise incapacitation of at least a part of the circuit upon detected tampering the incapacitated circuit being part of an antenna
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/0772—Physical layout of the record carrier
- G06K19/07722—Physical layout of the record carrier the record carrier being multilayered, e.g. laminated sheets
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/0772—Physical layout of the record carrier
- G06K19/07726—Physical layout of the record carrier the record comprising means for indicating first use, e.g. a frangible layer
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07758—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag
- G06K19/0776—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for adhering the record carrier to further objects or living beings, functioning as an identification tag the adhering arrangement being a layer of adhesive, so that the record carrier can function as a sticker
Definitions
- the present invention relates to an RFID inlet antenna in which a metal circuit is formed on the surface of a resin base film via an adhesive layer, and an RFID using the same.
- the RFID in this specification is an abbreviation of “Radio Frequency IDentification” and means an IC tag that performs individual contact identification using radio waves.
- the RFID inlet antenna has a metal circuit formed on the surface of a resin base film via an adhesive layer.
- a resin base film a polyethylene terephthalate film, a polyethylene naphthalate film, or the like is used in consideration of heat resistance and dimensional stability. Then, an IC chip is mounted on a metal circuit of an RFID inlet antenna and then an adhesive material is applied so as to cover them, and an adhesive material layer is formed.
- the RFID inlet antenna is often distributed in such a form that after an IC chip is mounted on a metal circuit, an adhesive material is applied to cover them to form an adhesive material layer, and the adhesive material layer is covered with release paper.
- the end user peels the release paper, attaches the adhesive material layer to the adherend (distributed product, etc.), and handles the RFID like a management label.
- the RFID inlet antenna is useful in that individual recognition of an object to be attached can be performed in a non-contact manner.
- the RFID inlet antenna (particularly a metal circuit) that has been pasted once is peeled off from the object to be attached. There is a possibility of being illegally used (forged) by pasting it on the object to be attached.
- Patent Document 1 includes, “(1) a base film, and (2) a release agent layer provided in a partial region on one side surface of the base film; (3) Non-contact data including an embedded non-contact data carrier element and an adhesive embedded layer provided on the one-side surface of the base film while completely covering the entire release agent layer A carrier label, wherein a portion of the adhesive embedding layer including the non-contact data carrier element is covered with a peelable portion covering the release agent layer and the release agent layer.
- said non-contact data carrier label characterized in that it substantially spans both non-peelable parts.
- the peel-breaking non-contact data carrier label according to the present invention includes a peelable part and a non-peelable part in the adhesive embedding layer, Since the non-contact data carrier element is embedded and included in both parts, the non-contact data carrier element is destroyed at the same time by the illegal stripping action.
- the non-contact data carrier label of the delamination-breaking type according to the present invention if a slit is provided in the peripheral portion of the peelable portion of the adhesive embedding layer, The breakage of the non-contact data carrier element can be more easily generated, and the location where the breakage occurs can be more reliably controlled. " It is listed.
- the release agent layer (release coat layer) on the base film (resin base film) is embedded in the adhesive embedding layer (adhesive layer).
- An RFID inlet antenna was manufactured, a cover material was adhered to the adhesive material layer, and a peel test was conducted by pulling the resin base film and the cover material in opposite directions. It occurred and peeled off with the adhesive layer as a boundary without cutting and breaking the non-contact data carrier element (metal circuit) (see FIG. 1). Therefore, in order to prevent illegal peeling, there is room for further improvement of the technique described in Patent Document 1.
- Patent Document 1 proposes that it is preferable to provide a slit in the periphery of the peelable part from the viewpoint of preventing unauthorized peeling.
- a slit in a currently known RFID inlet antenna. It's not easy.
- an RFID inlet antenna is manufactured by roll-to-roll using a resin base film as a base material. Therefore, it should be avoided to provide a slit in a resin base film. is there.
- the adhesive layer is as thin as about 1 to 5 ⁇ m, and it is practically difficult to insert the slit. Therefore, development of a technique that can prevent unauthorized peeling without relying on a slit is desired.
- the present invention is an RFID inlet antenna in which a metal circuit is formed on the surface of a resin base film via an adhesive layer, and is attached to an object to be adhered by an adhesive material provided so as to cover the metal circuit.
- An object of the present invention is to provide an RFID inlet antenna in which a metal circuit is prevented from being taken out by unauthorized peeling after being bonded.
- the present inventors have formed the above-mentioned object by forming a release coat layer having a specific pattern at a part of the interface between the resin base film and the adhesive layer.
- the present invention has been completed.
- the present invention relates to the following RFID inlet antenna and RFID.
- a metal circuit is formed on the surface of a resin base film via an adhesive layer, and is an RFID inlet antenna that is adhered to an object to be adhered by an adhesive provided to cover the metal circuit, It has a release coat layer in a part of the interface between the resin base film and the adhesive layer, (1) The adhesive strength between the release coat layer and the resin base film is smaller than the adhesive strength between the adhesive layer and the resin base film, (2) The release coat layer is formed so as to straddle at least a part of the outer periphery of the RFID inlet antenna and a part of the metal circuit when the RFID inlet antenna is viewed from above. Inlet antenna for RFID characterized by the above. 2.
- the RFID inlet antenna according to Item 1 wherein the metal circuit is made of aluminum or copper. 3. Item 3. The RFID inlet antenna according to Item 1 or 2, wherein an adhesive strength between the release coat layer and the resin base film is 1 N / 15 mm or less. 4). Item 4. The RFID inlet antenna according to any one of Items 1 to 3, wherein an adhesive strength between the adhesive layer and the resin base film is 3 N / 15 mm or more. 5. Any of the above items 1 to 4, wherein the metal circuit portion that overlaps the edge of the release coat layer when the RFID inlet antenna is viewed from above has a line width of 1.2 mm or less and / or a thickness of 30 ⁇ m or less. The inlet antenna for RFID as described. 6). Item 6. An RFID using the RFID inlet antenna according to any one of items 1 to 5.
- a metal circuit is formed on the surface of a resin base film via an adhesive layer, and is adhered to an object to be adhered by an adhesive provided so as to cover the metal circuit.
- RFID inlet antenna It has a release coat layer in a part of the interface between the resin base film and the adhesive layer, (1) The adhesive strength between the release coat layer and the resin base film is smaller than the adhesive strength between the adhesive layer and the resin base film, (2) The release coat layer is formed so as to straddle at least a part of the outer periphery of the RFID inlet antenna and a part of the metal circuit when the RFID inlet antenna is viewed from above.
- the RFID inlet antenna of the present invention is formed so that the release coat layer particularly straddles at least a part of the outer periphery of the RFID inlet antenna and a part of the metal circuit when the RFID inlet antenna is viewed from above.
- the metal circuit is prevented from being taken out by unauthorized peeling.
- the release coat layer is peeled off from the resin base film before the adhesive material layer is cohesively broken, and the metal circuit is cut and broken after the release coat layer is completely peeled off. Since the peeling proceeds in such a manner, the metal circuit is prevented from being peeled as it is.
- the resin base film is not limited, and conventionally known resin films can be used in the field of RFID inlet antennas.
- Examples thereof include polyethylene, polypropylene, polyethylene terephthalate, polyethylene naphthalate, polycarbonate, polyvinyl chloride, polyimide, amorphous polyethylene terephthalate, and liquid crystal polymer.
- at least one of polyethylene, polypropylene, polyethylene terephthalate, polyethylene naphthalate, polycarbonate, and polyvinyl chloride is preferable.
- the type and thickness of the resin base film are usually selected according to the purpose and application of the finally manufactured RFID.
- polyethylene terephthalate, polyethylene naphthalate, etc. are preferable, and generally used in a thickness of 25 to 50 ⁇ m. .
- the adhesive layer is not limited, and can be formed of, for example, an adhesive such as epoxy resin, urethane resin, polyimide, acrylic resin, or vinyl chloride resin solution.
- an adhesive such as epoxy resin, urethane resin, polyimide, acrylic resin, or vinyl chloride resin solution.
- these adhesives those having an adhesive strength with a resin base film of 3 N / 15 mm or more are preferable, and those having a strength of 4 to 6 N / 15 mm are more preferable.
- the adhesive strength between the adhesive layer and the resin base film is less than 3 N / 15 mm, the metal circuit may be destroyed by an external force applied during processing such as formation of a metal circuit or IC chip mounting.
- the thickness of the adhesive layer is not limited, but is preferably about 1 to 10 ⁇ m, more preferably about 3 to 7 ⁇ m.
- a release coat layer is provided at a part of the interface between the resin base film and the adhesive layer.
- the adhesive strength between the resin base film and the adhesive layer is less than the adhesive strength between the adhesive base layer and the resin base film, and when the RFID inlet antenna is viewed from above, the RFID inlet antenna What is necessary is just to form so that it may straddle at least one part of outer periphery, and a part of metal circuit (refer FIG. 2).
- the peeling coating layer peels off from the resin base film before, and the peeling progresses in a form that cuts and breaks the metal circuit after all the peeling coating layer is peeled off, it is prevented that the metal circuit is peeled off as it is. ing.
- the release coating layer is provided in multiple directions (plurality) while satisfying the above requirements.
- the RFID inlet antenna is generally square or rectangular, there are peeling coat layers at the four corners, taking into account that it is easy to tamper with the square or rectangular corners. It is preferable to provide it.
- IC chip mounting parts, front and back conductive parts, etc. in the metal circuit described later are greatly related to electrical characteristics, and external force is more easily applied than other parts by IC chip mounting, crimping processing, etc. It is preferable that this does not reach.
- release coat layer for example, 1 to 5 parts by weight of polyethylene terephthalate is mixed with 100 parts by weight of acrylic resin, and a release coat solution obtained by appropriately diluting with an organic solvent is applied and dried on a resin base film. Can be formed.
- a fluorine resin, a silicone resin, or the like can be used as the release coating liquid.
- the thickness of the release coat layer is not limited, but is preferably about 0.6 to 1.8 ⁇ m, more preferably about 1.0 to 1.4 ⁇ m.
- the adhesive strength between the release coat layer and the resin base film is preferably 1 N / 15 mm or less, and more preferably 0.05 to 1 N / 15 mm in view of durability during processing. When the adhesive strength between the release coat layer and the resin base film exceeds 1 N / 15 mm, the metal circuit may not be destroyed during unauthorized peeling.
- the difference between the adhesive strength between the adhesive layer and the resin base film and the adhesive strength between the release coat layer and the resin base film is preferably set to 2 N / 15 mm or more, more preferably 3 to 5 N / 15 mm. .
- Examples of the metal circuit include those obtained by forming at least one metal foil selected from aluminum foil, copper foil, stainless steel foil, titanium foil, tin foil and the like into a circuit shape by a resist method (exposure / development method).
- metal foils it is most preferable to use an aluminum foil or a copper foil from the viewpoint of economy and reliability.
- Aluminum foil is not limited to pure aluminum foil, but also includes aluminum alloy foil.
- a pure aluminum foil or an aluminum alloy foil such as 1030, 1N30, 1050, 1100, 8021, and 8079 can be adopted as a symbol of JIS (AA).
- the line width and thickness of the metal circuit are not limited, but the line width is preferably 0.2 to 1.5 mm, more preferably 0.4 to 0.8 mm.
- the thickness is preferably 7 to 60 ⁇ m, more preferably 15 to 50 ⁇ m.
- the metal circuit is cut and broken at the metal circuit portion that overlaps the end of the release coat layer. It is preferable that it is 2 mm or less and / or 30 ⁇ m or less in thickness because it is easily cut and broken.
- the thickness is preferably set to 30 ⁇ m or less.
- a metal circuit may be formed on both sides of the resin base film with an adhesive layer interposed therebetween.
- a release coating layer may be formed on both surfaces of the resin base film, but it is considered that unauthorized peeling is performed. It is preferable from an economical viewpoint to form a release coat layer only on one side.
- the RFID inlet antenna of the present invention is attached to an adherend (distributed product or the like) with an adhesive provided so as to cover a metal circuit and is handled like a management label.
- adherend distributed product or the like
- an adhesive provided so as to cover a metal circuit and is handled like a management label.
- the adhesive material conventionally known adhesive materials in the field of RFID inlet antennas can be used, and examples thereof include rubber-based, acrylic-based, silicone-based, and urethane-based adhesive materials.
- the thickness of the pressure-sensitive adhesive layer formed of the pressure-sensitive adhesive material is not limited, but is preferably about 5 to 30 ⁇ m, more preferably about 15 to 20 ⁇ m.
- a release paper also called a release sheet or a cover material
- the release paper is peeled off during use. It is preferable to affix to an object.
- Such release paper can be arbitrarily used from among known release papers depending on the type of adhesive material.
- the RFID inlet antenna of the present invention is formed so that the release coat layer particularly straddles at least a part of the outer periphery of the RFID inlet antenna and a part of the metal circuit when the RFID inlet antenna is viewed from above.
- the metal circuit is prevented from being taken out by unauthorized peeling.
- the release coat layer is peeled off from the resin base film before the adhesive material layer is cohesively broken, and the metal circuit is cut and broken after the release coat layer is completely peeled off. Since the peeling proceeds in such a manner, the metal circuit is prevented from being peeled as it is.
- FIG. 1 It is a schematic diagram showing a cross-sectional view, a top view, and a progressing mode of peeling at the time of illegal peeling of a conventional RFID inlet antenna. It is the cross-sectional view of the inlet antenna for RFID of this invention, a top view, and the schematic diagram which shows the advancing aspect of peeling at the time of unauthorized peeling.
- Example 1 As a resin base film, a 38 ⁇ m thick polyethylene terephthalate film was prepared. Next, 1 part by weight of polyethylene terephthalate was mixed with 100 parts by weight of acrylic resin, and a release coating solution diluted with an appropriate amount of organic solvent was prepared. A release coating solution was applied to one side of the resin base film by a gravure printing method, and dried with hot air at 60 ° C. to evaporate the organic solvent to form a 1 ⁇ m release coat layer. This release coat layer was formed so as to straddle the end of the resin base film and a part of the subsequent metal circuit when the RFID inlet antenna was viewed from above (see FIG. 2).
- the metal circuit was formed by the following procedure. First, 8079 aluminum foil having a thickness of 20 ⁇ m manufactured by Toyo Aluminum Co., Ltd. was prepared. Next, 10 parts by weight of LX-500 (adhesive) manufactured by DIC Corporation and 1 part by weight of KW75 (adhesive) are mixed with a disper on the surface of the aluminum foil, and an adhesive diluted with an appropriate amount of organic solvent is applied. did. After evaporating the organic solvent with warm air of 60 ° C., a 3 ⁇ m adhesive layer was obtained. Next, after the release coating layer forming surface of the resin base film was bonded to the adhesive layer, curing was performed at 40 ° C. for 3 days to cure the adhesive. After the adhesive was cured, the aluminum foil was processed by an exposure / development method to form a metal circuit (line width 0.3 mm). Thus, an RFID inlet antenna was produced.
- Example 2 An RFID inlet antenna was produced in the same manner as in Example 1, except that a metal circuit was formed using 8079 aluminum foil having a thickness of 30 ⁇ m manufactured by Toyo Aluminum Co., Ltd.
- Example 3 An RFID inlet antenna was produced in the same manner as in Example 1 except that the line width of the metal circuit was 0.9 mm.
- Example 4 An RFID inlet antenna was produced in the same manner as in Example 1 except that the line width of the metal circuit was 1.2 mm.
- Comparative Example 1 Except that the release coat layer was formed so as to straddle part of the metal circuit when the RFID inlet antenna was viewed from above, but not to reach the end of the resin base film. In the same manner as in Example 1, an RFID inlet antenna was produced. That is, the release coat layer is embedded in the adhesive layer (see FIG. 1).
- Test example 1 peeling test
- a cover material quality paper: 64 g / m 2
- Adhesive material is made by mixing 100 parts by weight of Vinesol R-8510N (adhesive material) and 1.7 parts by weight of B-45 (adhesive material) with a disper and diluting with an appropriate amount of organic solvent. It was prepared by.
- a peeling test was performed by pulling the resin base film and the cover material in the opposite direction at a speed of 50 mm / min. When the metal circuit was broken and separated into the resin base film side and the cover material side, it was evaluated as “good”, and when the metal circuit was not broken and remained on the resin base film side, it was evaluated as “poor”. The evaluation results are shown in Table 1 below.
- the release coat layer was formed so as to straddle at least a part of the outer periphery of the RFID inlet antenna and a part of the metal circuit when the RFID inlet antenna was viewed from above.
- the RFID inlet antennas of Examples 1 to 4 since the metal circuit is broken in the peeling test and separated into the resin base film side and the cover material side, unauthorized peeling and unauthorized use are prevented.
- the RFID inlet antenna of Comparative Example 1 since the RFID inlet antenna of Comparative Example 1 remains on the resin base film side without breaking the metal circuit in the peeling test, it cannot prevent unauthorized peeling and unauthorized use.
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Abstract
Description
1.樹脂製ベースフィルムの表面に接着剤層を介して金属回路が形成されており、前記金属回路を被覆するように設けられる粘着材によって被着対象物に接着されるRFID用インレットアンテナであって、
前記樹脂製ベースフィルムと前記接着剤層との界面の一部に剥離コート層を有し、
(1)前記剥離コート層と前記樹脂製ベースフィルムとの接着強度は、前記接着剤層と前記樹脂製ベースフィルムとの接着強度よりも小さく、
(2)前記剥離コート層は、前記RFID用インレットアンテナを上面から見た際に前記RFID用インレットアンテナの外周の少なくとも一部と前記金属回路の一部とに跨るように形成されている、
ことを特徴とするRFID用インレットアンテナ。
2.前記金属回路は、アルミニウム又は銅から形成されている、上記項1に記載のRFID用インレットアンテナ。
3.前記剥離コート層と前記樹脂製ベースフィルムとの接着強度が1N/15mm以下である、上記項1又は2に記載のRFID用インレットアンテナ。
4.前記接着剤層と前記樹脂製ベースフィルムとの接着強度が3N/15mm以上である、上記項1~3のいずれかに記載のRFID用インレットアンテナ。
5.前記RFID用インレットアンテナを上面から見た際に前記剥離コート層の端部と重なる金属回路部分は、線幅1.2mm以下及び/又は厚み30μm以下である、上記項1~4のいずれかに記載のRFID用インレットアンテナ。
6.上記項1~5のいずれかに記載のRFID用インレットアンテナを用いたRFID。
前記樹脂製ベースフィルムと前記接着剤層との界面の一部に剥離コート層を有し、
(1)前記剥離コート層と前記樹脂製ベースフィルムとの接着強度は、前記接着剤層と前記樹脂製ベースフィルムとの接着強度よりも小さく、
(2)前記剥離コート層は、前記RFID用インレットアンテナを上面から見た際に前記RFID用インレットアンテナの外周の少なくとも一部と前記金属回路の一部とに跨るように形成されていることを特徴とする。
樹脂製ベースフィルムとして、38μm厚さのポリエチレンテレフタレートフィルムを用意した。次に、アクリル樹脂100重量部に対してポリエチレンテレフタレート1重量部を混合し、適宜量の有機溶剤で希釈した剥離コート液を用意した。樹脂製ベースフィルムの片面に剥離コート液をグラビア印刷法により塗布し、60℃の温風で乾燥させることにより有機溶剤を気化させて1μmの剥離コート層を形成した。この剥離コート層は、RFID用インレットアンテナを上面から見た際に、樹脂製ベースフィルムの端部と、後続の金属回路の一部とに跨るように形成した(図2参照)。
金属回路を、東洋アルミニウム株式会社製30μm厚さの8079材アルミニウム箔を用いて形成した以外は、実施例1と同様の方法で、RFID用インレットアンテナを作製した。
金属回路の線幅を、0.9mmとした以外は、実施例1と同様の方法で、RFID用インレットアンテナを作製した。
金属回路の線幅を、1.2mmとした以外は、実施例1と同様の方法で、RFID用インレットアンテナを作製した。
剥離コート層を、RFID用インレットアンテナを上面から見た際に、金属回路の一部に跨るように形成したが、樹脂製ベースフィルムの端部には到達しないように形成した以外は、実施例1と同様にしてRFID用インレットアンテナを作製した。つまり、剥離コート層は、接着剤層に埋包された状態である(図1参照)。
実施例1~4及び比較例1で作製したRFID用インレットアンテナの金属回路形成面に粘着材を介してカバー材(上質紙:64g/m2)を積層した。粘着材は、一方社油脂工業株式会社製バインゾールR-8510N(粘着材)100重量部とB-45(粘着材)1.7重量部をディスパーで混合し、適宜量の有機溶剤で希釈することにより調製した。カバー材の表面に粘着材を塗布し、60℃の温風により有機溶剤を気化させた後、30μmの粘着材層を形成した後に実施例1~4及び比較例1で作製したRFID用インレットアンテナの金属回路面と貼り合わせて、40℃で2日間養生した。
2.剥離コート層
3.接着剤層
4.金属回路
5.粘着材
6.カバー材
10.RFID用インレットアンテナの外周
11.剥離性部分(剥離コート層)
12.非剥離性部分
13.金属回路
Claims (6)
- 樹脂製ベースフィルムの表面に接着剤層を介して金属回路が形成されており、前記金属回路を被覆するように設けられる粘着材によって被着対象物に接着されるRFID用インレットアンテナであって、
前記樹脂製ベースフィルムと前記接着剤層との界面の一部に剥離コート層を有し、
(1)前記剥離コート層と前記樹脂製ベースフィルムとの接着強度は、前記接着剤層と前記樹脂製ベースフィルムとの接着強度よりも小さく、
(2)前記剥離コート層は、前記RFID用インレットアンテナを上面から見た際に前記RFID用インレットアンテナの外周の少なくとも一部と前記金属回路の一部とに跨るように形成されている、
ことを特徴とするRFID用インレットアンテナ。 - 前記金属回路は、アルミニウム又は銅から形成されている、請求項1に記載のRFID用インレットアンテナ。
- 前記剥離コート層と前記樹脂製ベースフィルムとの接着強度が1N/15mm以下である、請求項1又は2に記載のRFID用インレットアンテナ。
- 前記接着剤層と前記樹脂製ベースフィルムとの接着強度が3N/15mm以上である、請求項1~3のいずれかに記載のRFID用インレットアンテナ。
- 前記RFID用インレットアンテナを上面から見た際に前記剥離コート層の端部と重なる金属回路部分は、線幅1.2mm以下及び/又は厚み30μm以下である、請求項1~4のいずれかに記載のRFID用インレットアンテナ。
- 請求項1~5のいずれかに記載のRFID用インレットアンテナを用いたRFID。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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CN201280033027.XA CN103649971B (zh) | 2011-07-04 | 2012-06-22 | Rfid用输入天线及使用该输入天线的rfid |
EP12807442.4A EP2731059A4 (en) | 2011-07-04 | 2012-06-22 | RFID INPUT ANTENNA AND RFID WITH IT |
US14/130,037 US10020568B2 (en) | 2011-07-04 | 2012-06-22 | RFID inlet antenna and RFID employing same |
KR1020147000811A KR102079917B1 (ko) | 2011-07-04 | 2012-06-22 | Rfid용 인렛 안테나 및 이를 이용한 rfid |
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JP2011148394A JP6073048B2 (ja) | 2011-07-04 | 2011-07-04 | Rfid用インレットアンテナ及びそれを用いたrfid |
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US (1) | US10020568B2 (ja) |
EP (1) | EP2731059A4 (ja) |
JP (1) | JP6073048B2 (ja) |
KR (1) | KR102079917B1 (ja) |
CN (1) | CN103649971B (ja) |
TW (1) | TWI556176B (ja) |
WO (1) | WO2013005584A1 (ja) |
Cited By (3)
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CN106022444A (zh) * | 2016-05-19 | 2016-10-12 | 深圳市法兰文化产业有限公司 | 一种易碎抗金属标签以及其安装装置 |
CN109344949A (zh) * | 2018-08-01 | 2019-02-15 | 浙江大学 | 一种天线和电路分离的防伪防盗rfid标签 |
US11866568B2 (en) | 2020-11-17 | 2024-01-09 | Asahi Kasei Kabushiki Kaisha | Component for telecommunication apparatus |
Families Citing this family (3)
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US9609761B2 (en) * | 2014-10-03 | 2017-03-28 | Hung-Chang Chen | Method of mounting self-adhesive substrate on electronic device |
CN110431559B (zh) * | 2016-09-09 | 2023-09-19 | 香港物流及供应链管理应用技术研发中心 | 射频通信设备及其使用方法 |
JP6334036B1 (ja) * | 2017-06-28 | 2018-05-30 | 日本パッケージ・システム株式会社 | インレットアンテナ、インレットアンテナ装置、及びそれらの製造方法 |
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- 2012-06-22 KR KR1020147000811A patent/KR102079917B1/ko active IP Right Grant
- 2012-06-22 EP EP12807442.4A patent/EP2731059A4/en not_active Withdrawn
- 2012-06-22 US US14/130,037 patent/US10020568B2/en active Active
- 2012-06-22 WO PCT/JP2012/066013 patent/WO2013005584A1/ja active Application Filing
- 2012-07-03 TW TW101123876A patent/TWI556176B/zh not_active IP Right Cessation
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106022444A (zh) * | 2016-05-19 | 2016-10-12 | 深圳市法兰文化产业有限公司 | 一种易碎抗金属标签以及其安装装置 |
CN106022444B (zh) * | 2016-05-19 | 2018-10-26 | 深圳市法兰文化产业有限公司 | 一种易碎抗金属标签 |
CN109344949A (zh) * | 2018-08-01 | 2019-02-15 | 浙江大学 | 一种天线和电路分离的防伪防盗rfid标签 |
CN109344949B (zh) * | 2018-08-01 | 2020-06-16 | 浙江大学 | 一种天线和电路分离的防伪防盗rfid标签 |
US11866568B2 (en) | 2020-11-17 | 2024-01-09 | Asahi Kasei Kabushiki Kaisha | Component for telecommunication apparatus |
Also Published As
Publication number | Publication date |
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CN103649971B (zh) | 2017-05-31 |
CN103649971A (zh) | 2014-03-19 |
TWI556176B (zh) | 2016-11-01 |
KR102079917B1 (ko) | 2020-02-21 |
TW201310350A (zh) | 2013-03-01 |
JP6073048B2 (ja) | 2017-02-01 |
JP2013016029A (ja) | 2013-01-24 |
EP2731059A1 (en) | 2014-05-14 |
US10020568B2 (en) | 2018-07-10 |
EP2731059A4 (en) | 2015-04-29 |
US20140159963A1 (en) | 2014-06-12 |
KR20140051231A (ko) | 2014-04-30 |
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