JP3110437U - RFID adhesive label - Google Patents

Abstract

An object of the present invention is to obtain an RFID pressure-sensitive adhesive label that is difficult to be re-attached even if it is peeled off after being pasted, and to obtain an RFID pressure-sensitive adhesive label that is suitable for application directly to a human body.
An RFID adhesive label 1 comprising an RFID inlay 2, a support 3 and a contact relaxation sheet 11, wherein the support 3 is a thin polyurethane film, and a guide film 4 can be peeled off on one side of the support 3. And the other surface of the support 3 is coated with an acrylic pressure-sensitive adhesive, and one side of the inlay 2 is coated with the pressure-sensitive adhesive so that a certain area of the pressure-sensitive adhesive-coated surface remains outside the entire outline of the inlay 2. The adhesive pressure-sensitive adhesive sheet 11 is adhered to the other surface of the inlay 2, and the remaining area of the adhesive-applied surface is the RFID adhesive label 1 that is the adhered area 6 to the adherend.
[Selection] Figure 2

Description

  The present invention relates to an adhesive label including an RFID. More specifically, the present invention relates to an RFID pressure-sensitive adhesive label which is difficult to be peeled off after being attached to an adherend.

An RFID is also called an IC tag, an RF tag, a wireless tag, an electronic tag, or the like, and is used for the purpose of integrating information about the object with the object attached thereto.
An inlay is an RFID circuit unit in which an antenna and an IC chip connected to the antenna are fixed on a base film such as PET.

  The RFID can record solid specific information such as an article to which the RFID tag is attached, and the solid specific information can be used as information (hereinafter sometimes referred to as security information) that guarantees authenticity of the article. Is possible. When the RFID is used as a security information recording means, it is essential that the adherend and the recorded information in the RFID match, and it is preferable that the RFID once used cannot be used for other articles. Moreover, in order to guarantee the authenticity of the branded product and the authenticity of the contents, it is necessary to prevent the RFID from being reattached during the distribution process.

2. Description of the Related Art Conventionally, as a reuse prevention RFID label, an antenna, an IC chip and the like are fixed to a base film and a strong adhesive is applied on the antenna and the IC chip. When the RFID label is once attached to the adherend and then peeled off, only the base film is peeled off, and the antenna or the like is left on the article. As a result, the RFID is destroyed (see, for example, Patent Document 1).
On the other hand, RFID is conventionally used as an identification information means for individuals such as hospital patients. Conventionally, for example, a wristband with RFID is used to integrate a person and an RFID (see, for example, Patent Document 2).
JP 2005-11330 A JP 2001-519918 A

Conventional reusable RFID labels leave a part of the RFID on the adherend, and the adherend after the RFID label is peeled loses its beauty. In high-end brand products and the like, fashionability is emphasized, and the purchaser may peel off the RFID label. Therefore, a reuse prevention RFID label that does not leave a part of the RFID on the adherend is desired.
On the other hand, the wristband with RFID may limit the behavior of the wearer, and may interfere with bathing and wiping.

Therefore, an object of the present invention is to obtain an RFID that is difficult to be reattached using another format.
Another object of the present invention is to obtain an RFID pressure-sensitive adhesive label that is difficult to reattach and that is suitable for applications that are applied directly to the human body.
Other problems of the present invention will become apparent from the following description of the present invention.

  In order to solve the above problems, an RFID adhesive label according to one aspect of the present invention is an RFID adhesive label comprising an RFID inlay and a support, and the support is a polyurethane film having an average thickness of 5 to 100 μm. A guide film is peelably laminated on one side of the support, an adhesive is applied to the other side of the support, and the plane size of the inlay is smaller than the plane size of the support; Is attached to a partial area of the pressure-sensitive adhesive application surface, and the remaining area of the pressure-sensitive adhesive application surface is an adhesion area to the adherend.

  The polyurethane film used as a support for the RFID pressure-sensitive adhesive label according to the present invention is flexible and rich in stretchability. When this RFID adhesive label is once attached to an adherend and peeled, each part of the polyurethane film expands and contracts at a different rate along with the peeling operation. As a result, the peeled support is irregularly rounded, and it becomes difficult to adhere to the original state.

  An RFID adhesive label according to a preferred embodiment of the present invention is an RFID adhesive label comprising an RFID inlay, a support, and a contact relaxation sheet, and the support is a polyurethane film having an average thickness of 5 to 50 μm, and the support A guide film is peelably laminated on one side of the body, an acrylic adhesive is applied to the other side of the support, and the plane size of the inlay is smaller than the plane size of the support, One side of the inlay is stuck to a partial region of the pressure-sensitive adhesive application surface so that a certain area of the pressure-sensitive adhesive application surface remains outside the contour line, and the contact relaxation sheet is fixed to the other surface of the inlay The remaining area of the pressure-sensitive adhesive application surface is an adhesion area to the adherend.

The RFID pressure-sensitive adhesive label according to this preferred embodiment is difficult to adhere again and is suitable for human body application. This is due to the following reason.
(1) Since the thin polyurethane film has a large moisture permeability, water vapor generated from the human body permeates through the thin polyurethane film and is discharged to the outside air, so that the RFID is not easily affected by moisture.
(2) The skin is difficult to muddy for the same reason as (1).
(3) Thin film polyurethane is flexible and stretchable, so there is little discomfort even when it is applied to the skin.
(4) Bathing, wiping, water work can be done with sticking, and swimming is also possible.
(5) Because it uses an acrylic adhesive, it is gentle on the skin.

  The aspect of this invention, preferable embodiment, and these components can be implemented in combination as much as possible.

The RFID pressure-sensitive adhesive label according to the present invention is difficult to be reattached even if it is peeled off after being applied once. Therefore, the RFID adhesive label is suitable for the purpose of assuring the authenticity of the adherend.
Further, the RFID adhesive label according to the preferred embodiment of the present invention is difficult to reattach, and is suitable for applications that are directly attached to the human body. Therefore, the RFID adhesive label is suitable for purposes such as identification of observers at medical institutions, identification of athletes and examinees, and prevention of replacement balls.

  The present invention will be further described below with reference to the drawings. The dimensions, materials, shapes, relative positions, etc. of the members and parts described in the embodiments of the present invention are not intended to limit the scope of the present invention to those unless otherwise specified. It is merely an illustrative example.

FIG. 1 is an explanatory plan view of the RFID adhesive label as seen from the adhesive application surface side, and FIG. 2 is a sectional explanatory view of the RFID adhesive label.
The RFID label 1 includes a support 3 and an RFID inlay 2. A guide film 4 is laminated on one side of the support 3 so as to be peelable. An adhesive is applied to the entire other surface of the support 3 to form an adhesive layer 5. The plane size of the inlay 2 is smaller than the plane size of the support 3. The inlay 2 is positioned at the center of the support 3 and is attached to the support 3 by the adhesive layer 5.

Outside the quadrilateral outline of the inlay 2, there is a remaining area of the adhesive-applied surface, and this area serves as an adhesion area 6 of the RFID adhesive label 1 to the adherend.
The support 3 is a polyurethane film having an average thickness of 25 μm.
A polyurethane film having an average thickness of 5 to 100 μm can be used. If the thickness is within this range, it is suitable as a support in order to have appropriate flexibility and stretchability. Further, if the thickness is within this range, if the film is peeled off after being pasted once, the film is rounded and re-sticking becomes impossible.
Moreover, when using an RFID adhesive label for a human body sticking use, a polyurethane film with an average thickness of 5-50 micrometers is used. This is because, within this range, the value of moisture permeability becomes large, water vapor permeates well and is easily discharged into the outside air, RFID operation is hardly hindered, and skin stuffiness can be prevented.

The guide film 4 is a polyethylene terephthalate and (PET) film having an average thickness of 100 μm. In addition to PET, the guide film 4 can be a polyethylene or polypropylene film, or can be a polyethylene-coated paper.
As a method of laminating a guide film on one side of the support 3, a polyurethane resin and a PET resin are coextruded into a film, a polyurethane film and a PET film are thermally laminated, a polyurethane resin on a PET film, etc. There is a method of casting.
The guide film 4 laminated by the above method can be easily peeled off and removed from the support 3 after the laminate of the support 3 and the guide film 4 is attached to the adherend.
A grip piece 12 can be attached to the guide film 3 as a grip portion for peeling and removing the guide film. For example, the grip piece 12 made of synthetic paper may be attached to the end portion of the guide film with an adhesive 13 formed on one side of the grip piece 12.

  As the pressure-sensitive adhesive forming the pressure-sensitive adhesive layer 5, known pressure-sensitive adhesives such as acrylic, rubber-based, and urethane-based can be used. When the RFID adhesive label is used for human body application, it is preferable to use an acrylic adhesive. This is because it is generally gentle to the skin and difficult to fog. The adhesive strength of the adhesive can be determined as appropriate in consideration of the surface of the adherend surface, the labeling period, the rubbing environment, and the like. The pasting area 6 may be covered with release paper as necessary.

The inlay 2 is formed by applying an adhesive on a base film (PET film having a thickness of 38 μm) and forming a spiral antenna by screen printing using an ink containing aluminum. Further, an IC chip is conductively connected and fixed to the antenna. The inlay 2 may be further laminated with synthetic paper, EVA, PET sheet, etc. on one side and / or both sides of the above basic configuration.
The inlay 2 may be manufactured by other materials and manufacturing methods. For example, the base film may be a polyimide film or a PBT film. Although there is no restriction | limiting in particular in the thickness of a base film, Usually, thickness is 10 micrometers-100 micrometers, Preferably it is thickness 20 micrometers-70 micrometers. The shape of the antenna may be a dipole antenna, for example. The material of the antenna may be copper, for example. The copper foil antenna may be formed by etching a copper foil layer on a base film and using a resist, or an antenna-shaped copper foil may be attached to the base film by pressing or the like. .

  When the RFID adhesive label is used for application to a human body, it is preferable to apply a nonwoven fabric 11 that is a contact relaxation sheet to the other surface (surface that contacts the skin) of the inlay 2. This is to improve the feel of the RFID pressure-sensitive adhesive label and alleviate the uncomfortable feeling. As the contact relaxation sheet 11, in addition to the nonwoven fabric, gauze, woven fabric, or the like may be used. The contact relaxation sheet 11 is preferably sized and shaped to cover the entire surface of the inlay 2. In FIG. 1, the contact relaxation sheet 11 is not shown.

  The RFID pressure-sensitive adhesive label 1 exposes the pressure-sensitive adhesive in the sticking area 6 and press-bonds it to an adherend (object, person, etc.). Thereafter, the guide film is removed to complete the pasting. If the RFID adhesive label is peeled off after sticking, the polyurethane film as the support is rounded and re-sticking is impossible.

  The RFID pressure-sensitive adhesive label according to the present invention can be used for the purpose of showing the authenticity of a product, for example, by sticking to the product. In addition, by sticking to a person, it can be used for identification of individual patients, sports and other competitions, prevention of replacements in examinations, and sickness and corpse identification means in the event of a disaster.

It is plane explanatory drawing which looked at the RFID adhesive label from the adhesive application surface side. It is sectional explanatory drawing of a RFID adhesive label.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 RFID adhesive label 2 Inlay 3 Support body 4 Guide film 5 Adhesive layer 6 Adhesion area | region 11 Nonwoven fabric which is a contact relaxation sheet 12 Grip piece 13 Grip piece adhesive 21 Antenna 22 IC chip

Claims (2)

  An RFID adhesive label comprising an RFID inlay and a support, wherein the support is a polyurethane film having an average thickness of 5 to 100 μm, and a guide film is detachably laminated on one side of the support, Adhesive is applied to the other surface, the plane size of the inlay is smaller than the plane size of the support, the inlay is attached to a partial region of the pressure-sensitive adhesive application surface, An RFID pressure-sensitive adhesive label in which the remaining area is an adhesion area to an adherend. An RFID adhesive label comprising an RFID inlay, a support, and a contact relaxation sheet, wherein the support is a polyurethane film having an average thickness of 5 to 50 μm, and a guide film is detachably laminated on one side of the support, An acrylic pressure-sensitive adhesive is applied to the other surface of the support, the plane size of the inlay is smaller than the plane size of the support, and a certain area of the pressure-sensitive adhesive application surface outside the entire outline of the inlay. In such a state that one surface of the inlay is stuck to a partial region of the pressure-sensitive adhesive application surface, the contact relaxation sheet is fixed to the other surface of the inlay, and the residual region of the pressure-sensitive adhesive application surface is adhered. An RFID adhesive label that is a region attached to the body.

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