RFID labels and how to use them

Abstract

To prevent an RFID label from lifting from the surface of an adherend to make it hardly peel.SOLUTION: An RFID label 10 includes an RFID inlay 20, and has waveform parts 13, 14 formed on at least portions of circumferences 11, 12.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to RFID labels and methods of using RFID labels. [Background technology]

[0002] Labels that can be attached to cylindrical objects such as blood collection tubes and test tubes have been proposed (see Patent Document 1). The label described in Patent Document 1 has perforations or through holes formed at the label end to prevent the label end from floating up due to being unable to follow the curved surface of the test tube. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-73109 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, RFID media such as RFID tags and RFID labels that support RFID (Radio Frequency Identification) technology, which sends and receives information via contactless communication from IC chips containing product-related and identification information, have become widespread in fields such as product manufacturing, management, and distribution.

[0005] Such RFID labels contain an antenna pattern and a resin substrate for forming the antenna pattern, making them less likely to bend than labels that do not contain an RFID inlay, and the edges of the label are more likely to lift up when attached to a cylindrical object such as a test tube.

[0006] Furthermore, blood collection tubes, test tubes, etc. are sometimes used in harsh environments such as extremely low temperatures or high temperatures and humidity. In such cases, the environmental adaptability of the label substrate exceeds the allowable range, making the label more susceptible to peeling, especially when attached to a non-flat surface.

[0007] Furthermore, in such applications, there are cases where the label must be attached even when water droplets or the like are attached to the surface of the adherend, such as a test tube, etc. Therefore, there are cases where the RFID label is required to be able to be attached to the adherend even under such harsh conditions.

[0008] Therefore, an object of the present invention is to prevent the RFID label from lifting off the surface of the adherend, making it difficult to peel off. [Means for solving the problem]

[0009] According to one aspect of the present invention, a device includes an RFID inlay and has corrugations formed on at least a portion of its periphery. death , The corrugated portion has a plurality of arcs formed by bulging outward from the RFID inlay, and a curved portion formed as an arc recessed inward from the RFID inlay between two adjacent arcs among the plurality of arcs, and the diameter of the arc at the curved portion is smaller than the diameter of the arc formed by bulging outward. An RFID label is provided. [Effects of the Invention]

[0010] According to the above-described embodiment, the RFID label including the RFID tag has a corrugated portion formed on at least a portion of its periphery, which allows the outer periphery of the RFID label to easily conform to the surface of the adherend, thereby preventing the RFID label from lifting off the surface of the adherend and making it less likely to peel off. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a plan view of a continuous RFID label body according to an embodiment of the present invention, viewed from the front surface side. [Figure 2] 2 is an enlarged plan view showing one of the RFID inlays arranged in a separator of the continuous RFID label shown in FIG. 1. FIG. [Figure 3] FIG. 10 is an enlarged view of a part of the non-parallel portion. [Figure 4] FIG. 4 is a cross-sectional view taken along line IV-IV shown in FIG. [Figure 5] FIG. 10 is a plan view of an RFID label according to a first modified example, viewed from the front side. [Figure 6]FIG. 10 is a plan view of an RFID label according to a second modified example, viewed from the front side. [Figure 7] FIG. 11 is a plan view of an RFID label according to a third modified example, viewed from the front side. [Figure 8] FIG. 11 is a plan view of an RFID label according to a fourth modified example, viewed from the front side. [Figure 9] FIG. 11 is a plan view of an RFID label according to a fifth modified example, viewed from the front side. [Figure 10] FIG. 13 is a plan view of an RFID label according to a sixth modified example, viewed from the front side. [Figure 11] FIG. 13 is a plan view of an RFID label according to a seventh modified example, viewed from the front side. [Figure 12] 1A and 1B are diagrams illustrating a test tube to which an RFID label according to the present embodiment is attached, and how the RFID label is attached to the test tube. [Figure 13] FIG. 12 is an external view of an Erlenmeyer flask as an adherend to which the RFID label shown in FIG. 11 is attached. [Figure 14] 1 is an external view of a bag as an adherend to which an RFID label according to an embodiment of the present invention is attached. DETAILED DESCRIPTION OF THE INVENTION

[0012] [RFID label] An RFID label 10 according to an embodiment of the present invention will be described.

[0013] Fig. 1 is a plan view of a continuous RFID label strip 1 according to an embodiment, as viewed from the front side. Fig. 2 is an enlarged plan view of one of the RFID labels 10 arranged on a separator S of the continuous RFID label strip 1 shown in Fig. 1.

[0014] As shown in Fig. 1, the RFID label continuum 1 has a plurality of RFID labels 10 arranged on a long strip-shaped separator S. The plurality of RFID labels 10 are arranged in the longitudinal direction of the separator S (the Y direction shown in Fig. 1).

[0015] As shown in Figures 1 and 2, the RFID label 10 has non-parallel portions 13 and 14 that are non-parallel to the width direction (hereinafter referred to as the X direction) of the separator S, and straight portions 15 and 16 at peripheral portions 11 and 12 that face each other in the longitudinal direction (hereinafter referred to as the Y direction) of the separator S.

[0016] The RFID label 10 according to this embodiment is rectangular, and the longitudinal edges of the RFID label 10 are formed with the non-parallel portions 13, 14 and the straight portions 15, 16 described above, and the lateral edges of the RFID label 10 are formed with straight lines.

[0017] The non-parallel portions 13 and 14 that form part of the contour (outer periphery) of the RFID label 10 have recesses 131 and 141 that are recessed inward of the RFID label 10 relative to the peripheral portions 11 and 12 on the same plane as the rectangular RFID label 10. In other words, the non-parallel portions 13 and 14 are corrugated portions formed in a corrugated shape.

[0018] 3 is an enlarged view of a part of the non-parallel portion 13. In this embodiment, as shown in FIGS. 2 and 3, the non-parallel portion 13 has a structure in which a plurality of recesses 131 formed in the Y direction and recessed inward of the RFID label 10 from the peripheral edge portion 11 are continuous in the X direction.

[0019] Since the non-parallel portion 14 has the same structure as the non-parallel portion 13 described above, the non-parallel portion 13 will be described below.

[0020] As shown in FIG. 3, in this embodiment, some recesses 131 constituting the non-parallel portion 13 are formed in the same plane as the RFID label 10 (i.e., in the Y direction) with curves that bulge outward from the RFID label 10.

[0021] In this embodiment, the recess 131 is composed of an arc 132 in which a vertex Tm of a perfect circle M centered at point Om is formed toward the outside of the RFID label 10, and an arc 133 that overlaps with the circle M and in which a vertex Tn of a perfect circle N centered at point On is formed toward the outside of the RFID label 10.

[0022] In this embodiment, at the intersection of the arcs 132 and 133 that form the recess 131, a curved portion 134 that is recessed in an arc shape toward the inside of the RFID label 10 (i.e., in the Y direction) is formed.

[0023] This curved portion 134 can be rephrased as a chain reaction prevention portion that prevents the chain reaction of peeling between the arcs 132 and 133 that are arranged side by side.

[0024] That is, the non-parallel portions 13, 14 that form part of the contour (outer periphery) of the RFID label 10 have curved portions 134 (chain prevention portions). When the non-parallel portions 13, 14 are configured to include arcs 132, 133 that protrude outward, the curved portions 134 are formed between adjacent arcs 132, 133.

[0025] For example, even if one of the consecutive circular arcs 132, 133 lifts up from the adherend, the curved portion 134 formed between the circular arcs 132 and 133 prevents the other circular arc from lifting up in conjunction with the lifting of the other circular arc. This prevents the adjacent circular arcs 132 and 133 from lifting up in a chain reaction. In other words, the curved portion 134 functions as a chain reaction prevention portion that prevents the circular arcs 132 and 133 from peeling off in a chain reaction.

[0026] In this embodiment, from the viewpoint of removing water droplets, it is preferable that the recesses 131 constituting the non-parallel portion 13 do not include straight line portions, and are preferably formed by overlapping circular arc shapes. In this embodiment, as an example, the diameters of the circles M, N, ... are each 5 mm, and they are designed to overlap each other by 1 mm.

[0027] The non-parallel portion 13 is formed by a plurality of such recesses 131 continuing in the X direction. The non-parallel portion 14 is also formed in the same manner.

[0028] In this embodiment, the non-parallel portions 13 and 14 allow the edges of the RFID label 10 to easily conform to the surface of the adherend, thereby preventing the RFID label 10 from lifting up from the surface of the adherend and making it less likely to peel off.

[0029] Furthermore, by having the non-parallel portions 13, 14, even if water droplets or the like are present between the RFID label 10 and the surface of the adherend to which the RFID label 10 is affixed, when the RFID label 10 is affixed, the water droplets are more likely to be expelled from between the RFID label 10 and the surface of the adherend toward the recesses 131, 141, compared to conventional labels in which the edges of the label are formed only in straight lines. This makes it possible to improve the attachment state of the RFID label 10 to the adherend.

[0030] From the viewpoint of the effectiveness of discharging water droplets, it is preferable that the non-parallel portions 13, 14 are formed along the entire edge of the RFID label 10. However, when a printer having a configuration for reading the gaps before and after the RFID label 10 is used for printing on the RFID label 10, it is preferable to provide straight portions 15, 16 on the peripheral portions 11, 12.

[0031] Next, a description will be given of the laminated structure of the RFID label 10. Fig. 4 is a cross-sectional view taken along line IV-IV shown in Fig. 2.

[0032] As shown in FIG. 4, the RFID label 10 placed on the separator S includes an RFID inlay 20 and a surface substrate 30 covering the RFID inlay 20 .

[0033] The RFID inlay 20 includes a substrate 21 , an antenna pattern 22 formed on the substrate 21 by metal foil, and an IC chip 23 connected to the antenna pattern 22 .

[0034] As shown in FIG. 4, in the RFID label 10, a label base material made up of a surface base material 30 and a first adhesive layer A1 is laminated on the surface of the base material 21 on which the IC chip 23 is mounted.

[0035] The surface of the substrate 21 opposite to the surface on which the IC chip 23 is mounted is temporarily attached to the separator S via a second adhesive layer A2. The RFID label 10 is peeled off from the separator S and attached to an adherend by the second adhesive layer A2.

[0036] The substrate 21 may be, for example, a single resin film such as polyvinyl chloride, polyethylene terephthalate, polypropylene, polyethylene, or polyethylene naphthalate, or a multilayer film formed by laminating a plurality of these resin films.

[0037] In this embodiment, the substrate 21 may be the above-mentioned resin film substrate, or a paper substrate such as high-quality paper, medium-quality paper, or coated paper formed using these.

[0038] In this embodiment, the substrate 21 may have a thickness of 10 μm to 200 μm.

[0039] 1 and 2, the antenna pattern 22 forms a dipole antenna including a loop portion on which an IC chip 23 is mounted, meanders extending symmetrically from the loop portion, and capacitor hats connected to the ends of the meanders. The direction in which the antenna pattern 22 extends is the same as the direction in which the non-parallel portions 13 and 14 extend, i.e., the direction in which the arc 132 and the arc 133 join together.

[0040] In this embodiment, the antenna pattern 22 is designed to have an antenna length and antenna line width compatible with the UHF band (300 MHz to 3 GHz, particularly 860 MHz to 960 MHz), for example.

[0041] As shown in FIG. 4, the antenna pattern 22 is adhered to the substrate 21 by an adhesive layer A3 made of an adhesive or bonding agent such as an acrylic, urethane, silicone, or rubber adhesive.

[0042] The antenna pattern 22 is made of metal foil. Examples of metals that can be used for the antenna pattern 22 include copper and aluminum. In this embodiment, aluminum foil is used in order to reduce manufacturing costs.

[0043] The thickness of the metal foil is preferably 3 μm or more and 50 μm or less from the viewpoint of the overall thickness of the RFID inlay 20 or the thickness of the RFID label 10, and manufacturing costs, etc. In this embodiment, as an example, an aluminum foil having a thickness of 20 μm is used.

[0044] The IC chip 23 is a semiconductor package designed to be compatible with the UHF band and to be capable of communicating with a reader (not shown) that is a reading device for the IC chip 23.

[0045] Although not shown in FIG. 4, the IC chip 23 is electrically and mechanically connected to a part of the loop portion of the antenna pattern 22 by an anisotropic conductive material such as an anisotropic conductive adhesive or an anisotropic conductive film.

[0046] In this embodiment, the RFID inlay 20 and the surface base material 30 have the same planar shape. The non-parallel portions 13 and 14 can be formed by laminating the surface base material 30 and the RFID inlay 20 together, and then punching out both the surface base material 30 and the RFID inlay 20 using a cutter having the same shape as the non-parallel portions 13 and 14. Alternatively, for example, the RFID inlay 20 laminated on the inner side of the surface base material 30 may be smaller than the surface base material 30 in planar shape. In this case, the non-parallel portions 13 and 14 may be formed only on the surface base material 30.

[0047] <Effects> According to the RFID label continuum 1 having the above-described configuration, the RFID label 10 has non-parallel portions 13 and 14 formed on the peripheral portions 11 and 12 facing each other in the longitudinal direction (Y direction) of the separator S, which are non-parallel to the width direction (X direction) of the separator S.

[0048] In the case of the RFID label 10, because a metal foil is used for the antenna pattern 22 formed on the RFID inlay 20, combined with the stress that causes the base material 21 of the RFID inlay 20 to return to a flat surface, the end of the RFID label 10 is likely to lift up from the surface of the adherend. In contrast, the RFID label 10 has non-parallel portions 13, 14, which make it easier for the non-parallel portions 13, 14 to conform to the surface of the adherend. This prevents the RFID label 10 from lifting up from the surface of the adherend, making the RFID label 10 less likely to peel off.

[0049] Furthermore, according to the RFID label 10 of this embodiment, even if water droplets exist between the RFID label 10 and the surface of the adherend, when the RFID label 10 is attached to the surface of the adherend, the water droplets existing between the RFID label 10 and the surface of the adherend are easily expelled from the outside through the non-parallel portions 13, 14.

[0050] Therefore, even if the surface of the adherend is wet, the RFID label 10 can be attached without lifting up from the surface of the adherend, unlike an RFID label with a straight edge.

[0051] The non-parallel portions 13 and 14 are formed with recesses 131 and 141 that are recessed inward of the RFID label 10 from the peripheral portions 11 and 12 in the direction along the plane of the rectangular RFID label 10.

[0052] By forming the recesses 131, 141, even if water droplets exist between the RFID label 10 and the surface of the adherend, when the RFID label 10 is attached to the surface of the adherend, the water droplets are pushed out from the recesses 131, 141 and easily discharged to the outside from between the RFID label 10 and the surface of the adherend.

[0053] In addition, in this embodiment, some of the recesses 131 that make up the non-parallel portion 13 are configured to include arcs 132 and 133 that bulge outward from the RFID label 10 on the same plane (Y direction) as the RFID label 10.

[0054] In this way, by forming arc portions as the non-parallel portions 13, 14 of the RFID label 10, water droplets between the RFID label 10 and the surface of the substrate can move radially toward the arc portions of the non-parallel portions 13, 14, compared to conventional RFID labels whose edges are formed in straight lines, and therefore the water droplets are more easily discharged outward from between the RFID label 10 and the surface of the substrate.

[0055] Furthermore, in this embodiment, a curved portion 134 that is recessed inward (in the Y direction) of the RFID label 10 is formed at the intersection of the arcs 132 and 133 that form the recess 131. This allows water droplets discharged from the recesses 131, 141 to be received by the curved portion 134, thereby preventing water droplets that have been discharged outward from between the RFID label 10 and the surface of the adherend in the recesses 131, 141 from returning between the RFID label 10 and the adherend.

[0056] If the entire peripheral edge of the RFID label 10 were formed as the corrugated non-parallel portions 13, 14, the RFID label 10 would be easily peeled off from the separator S. In contrast, by forming the straight portions 15, 16 on the peripheral edges 11, 12, the RFID label 10 can be prevented from being easily peeled off from the separator S.

[0057] Furthermore, when printing on the RFID label 10 using a printer equipped with a configuration for reading gaps in the RFID label 10, the straight portions 15 and 16 enable the gaps to be read more accurately than when detecting the gaps in the RFID label 10 at the non-parallel portions 13 and 14.

[0058] Also, by previously printing a so-called eye mark, which is used as a mark for printing on the RFID label 10, on the straight portions 15 in advance, in the printer, alignment for printing can be performed more accurately compared to the case where alignment is performed based on the eye marks printed on the non-parallel portions 13, 14.

[0059] Further, according to the straight portions 15, 16, even when inspecting whether the RFID label 10 is attached to the adherent in the correct position and correct state after the RFID label 10 is attached to the adherent, it can be performed more accurately compared to the case of detecting based on the non-parallel portions 13, 14.

[0060] <Modified Example of RFID Label> Next, a modified example of the RFID label arranged on the RFID label continuum 1 according to the present embodiment will be described.

[0061] FIG. 5 is a plan view of the RFID label 200 according to the first modified example as viewed from the front side. The RFID label 200 has non-parallel portions 201, 202 formed on the peripheral portions 11, 12, which are formed as convex portions protruding outward from the peripheral portions 11, 12 of the RFID label 10.

[0062] FIG. 6 is a plan view of the RFID label 210 according to the second modified example as viewed from the front side. The RFID label 210 has non-parallel portions 211, 212 formed on the peripheral portions 11, 12, which are formed by a combination of elliptical arcs.

[0063] FIG. 7 is a plan view of the RFID label 220 according to the third modified example as viewed from the front side. The RFID label 220 has sinusoidal non-parallel portions 221, 222 formed on the peripheral portions 11, 12.

[0064] FIG. 8 is a plan view of the RFID label 230 according to the fourth modified example as viewed from the front side. The RFID label 230 has triangular-wave non-parallel portions 231, 232 formed on the peripheral portions 11, 12.

[0065] 9 is a plan view of an RFID label 240 according to a fifth modification, viewed from the front side. The RFID label 240 has rectangular wave-shaped non-parallel portions 241 and 242 formed on the peripheral edges 11 and 12.

[0066] 10 is a plan view of an RFID label 250 according to a sixth modification, viewed from the front side. The RFID label 250 has trapezoidal wave-shaped non-parallel portions 251 and 252 formed on the peripheral edges 11 and 12.

[0067] 11 is a plan view of an RFID label 260 according to a seventh modification, viewed from the front side. The RFID label 260 has non-parallel portions 261 and 262 formed thereon.

[0068] In the RFID label 260, the peripheral portion 11 and the non-parallel portion 261 form a predetermined angle in the X direction, and the peripheral portion 12 and the non-parallel portion 262 opposite the peripheral portion 11 and the non-parallel portion 261 are formed so as to be symmetrical to the peripheral portion 11 and the non-parallel portion 261 with respect to an axis along the X direction.

[0069] Moreover, the peripheral edges 263 and 264 facing each other in the X direction are formed in a curved shape that convexly tapers off from the opposing peripheral edges 11 and 12.

[0070] Like the RFID label 10, the RFID labels 200 to 260 shown in FIGS. 5 to 11 described above can easily conform to the surface of the adherend, making them less likely to peel off from the adherend surface.

[0071] Furthermore, water droplets between the RFID label and the surface of the adherend can be pushed out from between the RFID label and the surface of the adherend, resulting in a good adhesion state.

[0072] [Adherend] Next, an adherend according to an embodiment of the present invention will be described. Fig. 12 is a diagram illustrating a test tube P1 as an adherend to which an RFID label 10 according to this embodiment is attached, and how the RFID label 10 is attached to the test tube P1.

[0073] In this embodiment, the adherend is a cylindrical or tubular body with a curved surface to which the RFID label 10 is attached. As an example, the adherend is a test tube P1.

[0074] Conventional RFID labels contain an RFID inlay, making them less likely to bend than labels that do not contain an RFID inlay. As a result, when attempting to attach the label to a cylindrical object such as test tube P1 as in this embodiment, there was a problem in that the end of the label was prone to lifting up.

[0075] In particular, a material such as polymethylpentene, which has high transparency and the second lowest surface tension after fluororesin, is sometimes used as the material for the test tube P1. Polymethylpentene test tubes have the characteristic that labels do not stick easily to them.

[0076] Furthermore, because the test tube P1 is used for blood collection and specimen testing, it is exposed to a wide range of temperature environments, from extremely low to high temperatures, as well as high humidity environments. In such applications, it may be necessary to attach a label even if there are water droplets or the like on the surface of the test tube P1.

[0077] When the RFID label 10 is used on the test tube P1 having a curved surface, the following method can be given as an example of how to use it: Note that the following method can be realized by a labeling device or the like.

[0078] First, while the RFID label continuum 1 shown in FIG. 1 is being conveyed in the Y direction, necessary information is printed on each of the RFID labels 10 using a printer (not shown).

[0079] Next, the RFID label 10 having corrugated portions (non-parallel portions 13, 14) on each of the opposing edges is attached to the curved test tube P1 so that the corrugated portions, i.e., the non-parallel portions 13 and 14, face each other.

[0080] As an example, the RFID label 10 is peeled off from the separator S, and as shown in Figure 12, the peripheral portion 11 and non-parallel portion 13 of the RFID label 10 are brought into contact with the surface of the test tube P1, and the RFID label 10 is transported while the test tube P1 is rotated in the rotation direction R at the same speed as the transport speed of the RFID label 10, and the RFID label 10 is wrapped around and attached to the surface of the test tube P1.

[0081] According to the RFID label 10 of this embodiment, even if water droplets or the like are attached to the surface of the test tube P1, when the non-parallel portion 13 abuts against the surface of the test tube P1, the water droplets or the like are radially pushed away by the recesses 131 included in the non-parallel portion 13, thereby preventing the water droplets or the like from getting between the RFID label 10 and the surface of the test tube P1.

[0082] Furthermore, after the non-parallel portion 13 comes into contact, the test tube P1 is rotated in the rotation direction R at the same speed as the conveying speed of the RFID label 10 to attach the RFID label 10 to the test tube P1, and water droplets adhering to the surface of the test tube P1 are sandwiched between the RFID label 10 and the surface of the test tube P1 and pushed backward in the rotation direction of the RFID label 10 (upstream in the conveying direction).

[0083] The recesses 141 formed in the non-parallel portion 14 make it easier for water droplets between the RFID label 10 and the surface of the adherend to be discharged in the radial direction toward the arc shape of the recesses 141.

[0084] Therefore, the water droplets pushed out between the RFID label 10 and the surface of the substrate are discharged to the outside from the peripheral portion 12 and non-parallel portion 14 located upstream in the conveying direction, from between the RFID label 10 and the surface of the substrate.

[0085] The RFID label 10 according to this embodiment promotes the discharge of water droplets between the RFID label 10 and the test tube P1, thereby achieving a good attachment state.

[0086] According to the RFID label 10 of this embodiment, even when applied to a test tube P1 used under the harsh conditions described above, as described above, the RFID label 10 easily adheres to the surface of the test tube P1 and a good adhesion state can be obtained, thereby preventing the RFID label 10 from lifting off the surface of the test tube P1.

[0087] In this way, a test tube P1 can be obtained to which the RFID label 10 is attached without lifting up.

[0088] When the RFID label 10 is applied to a cylindrical adherend such as a test tube P1, the RFID label 10 according to this embodiment may be printed with information specifying the direction of attachment relative to the test tube P1 so that the X direction of the RFID label 10 is aligned with the axial direction of the test tube P1.

[0089] Next, another form of the adherend will be described.

[0090] FIG. 13 is an external view of an Erlenmeyer flask P2 as an adherend to which the RFID label 260 shown in FIG. 11 is attached as a seventh modified example.

[0091] As in RFID label 260, peripheral edge 11 is formed at a predetermined angle in the X direction, and peripheral edge 12 opposing peripheral edge 11 is formed to be symmetrical to peripheral edge 11 with respect to an axis along the X direction. Furthermore, peripheral edges 263, 264 opposing in the X direction are formed into a curve that convexly tapers toward the tapered end of opposing peripheral edge 11 and peripheral edge 12. This makes it possible to prevent the label from peeling off even from an adherend having a tapered shape such as Erlenmeyer flask P2.

[0092] The adherend may also be a bag P3 in which a liquid or an amorphous object is enclosed.

[0093] Fig. 14 is an external view of a bag P3 as an adherend to which the RFID label 10 according to this embodiment is attached. Note that the adherend may be, for example, an object having a three-dimensional curved surface such as a sphere or a rugby ball, a box, or the like, in addition to the objects shown in Figs.

[0094] The RFID label 10 can be easily attached to the surface of the bag P3 even in such a case, and a good attachment state can be obtained.

[0095] [Other embodiments] Although the embodiments of the present invention have been described above, the above embodiments merely illustrate some of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments.

[0096] In this embodiment, in the non-parallel portion 13, the diameter of the arc constituting the recess 131 and the overlapping length of the circles can be changed as appropriate.

[0097] In this embodiment, in the set of elliptical shapes, sinusoidal wave, triangular wave, rectangular wave, and trapezoidal wave described with reference to Figures 5 to 10, the major and minor axes of the ellipse, the amplitude and wavelength of the sinusoidal wave, the amplitude and wavelength of the rectangular wave, etc. are not limited to the dimensional ratios shown in the drawings. The dimensional ratios of the shapes constituting the non-parallel portions 13 and 14 can be changed as appropriate within the range in which the effect is achieved.

[0098] In this embodiment, the non-parallel portions 13, 14 may be configured to include at least one curved shape. Other examples of the non-parallel portions 13, 14 include a collection of elliptical shapes described with reference to Figures 5 to 10, a sinusoidal wave shape, a triangular wave shape, a rectangular wave shape, and a trapezoidal wave shape, or a shape that combines all of these shapes.

[0099] In this embodiment, only one of the non-parallel portions 13 and 14 may be formed.

[0100] In this embodiment, the case where the antenna pattern 22 is a dipole antenna for a UHF band inlet has been described, but it may also be a coil antenna for an HF band. [Explanation of symbols]

[0101] 1 RFID Label Continuum 10 RFID labels 11,12 Periphery 13,14 Non-parallel section (wave section) 15,16 Straight section 20 RFID inlays 21 Base material 22 Antenna Pattern 23 IC chip 30 Surface base material 131,141 recess 132,133 arcs 134 Curved section 200, 210, 220, 230, 240, 250, 260 RFID labels 201,202,211,212,221,222,231,232,241,242,251,252,261,262 Non-parallel part 263,264 curved section A1 First adhesive layer A2 Second adhesive layer A3 Third adhesive layer P1 Test tube (substrate) P2 Erlenmeyer flask (substrate) P3 Bag (adherent) S Separator

Claims

1. Includes an RFID inlay, having a corrugated portion formed on at least a portion of the periphery; The corrugated portion is The RFID inlay has a plurality of arcs formed by bulging outward from the RFID inlay, and a curved portion formed as an arc recessed inward from the RFID inlay between two adjacent arcs among the plurality of arcs, a diameter of the arc at the curved portion is smaller than a diameter of the arc formed by the outward bulge; RFID label.

2. 2. The RFID label of claim 1, The wavy portion and the straight portion are formed on the periphery of the RFID label. RFID label.

3. 3. The RFID label according to claim 2, The RFID label has a rectangular shape, The RFID label has a longitudinal edge formed with the corrugated portion and the straight portion, The short-side edges of the RFID label are formed by straight lines. RFID label.

4. 4. The RFID label according to claim 1, The RFID inlay has an antenna pattern extending in a predetermined direction, The extending direction of the corrugated portion and the extending direction of the antenna pattern are the same direction. RFID label.

5. The RFID label has an RFID inlay and has corrugations on at least a portion of each of the opposing edges thereof; the corrugated portion has a plurality of arcs formed by bulging outward from the RFID inlay, and a curved portion formed as an arc recessed inward from the RFID inlay between the plurality of arcs, and the diameter of the arc at the curved portion is smaller than the diameter of the arc formed by bulging outward, The corrugated portions are attached to an adherend having a curved surface so that they face each other. How to use RFID labels.

6. A method of using the RFID label of claim 5, comprising: The RFID label has a circumferential edge formed with the corrugated portion and a straight portion, and the corrugated portion is formed between the straight portions, The tape is attached to the adherend having a curved surface so that the corrugated portions formed between the linear portions face each other. How to use RFID labels.

7. An RFID label according to claim 1, The RFID label is rectangular and has an adhesive layer that adheres the RFID inlay to the surface of an adherend, the RFID label has opposing peripheral edges in a longitudinal direction, the peripheral edges in the longitudinal direction having a straight portion and the corrugated portion; The corrugated portion is a first shape formed by the overlapping of the outwardly bulging arcs; the curved portion is formed at an intersection of the adjacent arcs that form the first shape, recessed inward, and formed more inward than the straight portion; RFID label.

8. A continuous RFID label body in which RFID labels are arranged at predetermined intervals in the longitudinal direction of a long separator and temporarily attached, The RFID label is rectangular and has an adhesive layer that adheres the RFID inlay to the surface of an adherend, the RFID label has opposing peripheral edges, the peripheral edges having a straight portion and a corrugated portion; The corrugated portion is a first shape formed by overlapping outwardly bulging arcs; a curved portion formed at an intersection of the adjacent arcs that form the first shape and recessed inward, the curved portion being formed more inward than the straight portion, RFID label continuum.

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