JP5474632B2 - Non-contact type data receiving / transmitting body and manufacturing method thereof - Google Patents

Description

 The present invention relates to a non-contact type data receiver / receiver that can receive information from the outside using electromagnetic waves or radio waves as a medium, and can transmit information to the outside, such as an information recording medium for RFID (Radio Frequency IDentification). In particular, the present invention relates to a non-contact type data transmitter / receiver that is easy to handle without being in close contact with each other even if they are overlapped, and a method for manufacturing the same.

 An IC tag, which is an example of a non-contact type data transmitting / receiving body, includes an inlet composed of a base material, an antenna provided on one surface thereof and connected to each other, and an information writing / reading When an electromagnetic wave or radio wave is received from the device, an electromotive force is generated in the antenna by a resonance action, and the IC chip in the IC tag is activated by this electromotive force, and the information in the IC chip is converted into a signal. Transmitted from the antenna.

 As IC tags and the like become widespread, there is a risk that counterfeit products that are made difficult to distinguish from the outside may appear. For this reason, in recent years, holograms that display three-dimensional information using light interference and diffraction phenomena have been used as anti-counterfeiting means for IC cards and the like.

 As a technique using a hologram as an anti-counterfeiting means such as an IC tag, it includes a sheet and a translucent DLC (diamond-like carbon) film formed on the sheet, and the DLC film has a relatively high refractive index. A hologram sheet having a local region and a local region having a relatively low refractive index is disclosed (for example, see Patent Document 1). This hologram sheet is used by being attached to the surface of an IC tag or the like.

JP 2006-84944 A

 However, since the hologram sheet as described above is used by being attached to the surface of an IC tag or the like, there is a problem that the thickness of the IC tag or the like including the hologram sheet is increased. Moreover, since the hologram sheet can be replaced, there is a problem that it is easy to tamper with information recorded as a hologram. Further, since the hologram sheet is manufactured in a manufacturing process different from that for an IC tag or the like, there is a problem that the manufacturing cost increases.

 The present invention has been made in view of the above circumstances, the thickness of the non-contact type data receiving / transmitting body is not increased, it is difficult to tamper with recorded information, and the manufacturing cost is low. It is an object of the present invention to provide a contactless data receiving / transmitting body and a manufacturing method thereof.

The non-contact type data transmitting / receiving body of the present invention includes an inlet, a covering material covering both surfaces of the inlet, and a surface base material provided on a surface of the covering material opposite to the surface in contact with the inlet And the covering material is made of a two-component mixed urethane resin, and the covering material is a layer in which bubbles on the surface side in contact with the inlet are not formed. If, to the surface in contact with the inlet and a layer bubble surface and its vicinity of the opposite side is formed, characterized in Tona Rukoto.

The method of manufacturing a non-contact type data transmitting / receiving body of the present invention is provided on an inlet, a covering material that covers both surfaces of the inlet, and a surface of the covering material that is opposite to the surface that is in contact with the inlet. A surface base material, wherein the covering material is made of a two-component mixed urethane resin, and the covering material is in contact with the inlet and a layer in which bubbles on the surface side in contact with the inlet are not formed . a layer bubble surface and its vicinity of the opposite side is formed to the surface, a method of manufacturing a non-contact type data reception and transmission body Ru Tona, at least a portion of one surface of the first surface stock Step A for applying water, Step B for applying a first adhesive composed of a two-component mixed urethane resin to the surface of the first surface base material applied with water, and the first Via the first adhesive applied to the surface substrate, the first surface substrate By superposing an inlet on one surface and pressing the inlet against the first surface base material, the first surface base material is placed between the one surface of the first surface base material and the inlet. Step C for developing the adhesive, Step D for applying water to at least part of one surface of the second surface base material, and the surface of the inlet in contact with the first adhesive Applying the second adhesive made of a two-component mixed urethane resin to the opposite surface, and the second surface on the inlet via the second adhesive applied to the inlet The base material is overlapped with the water-coated surface facing each other, and the second surface base material is pressed against the inlet, whereby one surface of the second surface base material and the inlet In the process F, the second adhesive is developed, and A step G of cutting a laminate including the first surface base material, the first adhesive, the inlet, the second adhesive, and the second surface base material in accordance with the shape of the inlet; It is characterized by having.

 According to the non-contact type data receiving / transmitting body of the present invention, a region where a large number of minute bubbles are formed is provided on one surface of the first covering material and a part of the vicinity thereof, and the second covering Since one region of the material and a part of the vicinity thereof are provided with a region where a large number of minute bubbles are formed, the non-contact type data receiving / transmitting body is identified (authentication determination) by the bubbles. be able to. In addition, a first surface base material is attached to one surface of the first covering material, and air bubbles are covered by the first surface base material, and a second surface is coated on the second surface of the second covering material. Since the surface substrate is pasted and the bubbles are covered with the second surface substrate, the bubbles can be prevented from being damaged or crafted into the bubbles. That is, it is possible to prevent a third party from falsifying the identification information of the non-contact type data receiving / transmitting body displayed by the bubbles.

 According to the method for manufacturing a non-contact type data transmitting / receiving body of the present invention, a laminate comprising a first surface base material, a first adhesive, an inlet, a second adhesive, and a second surface base material is heated. By doing so, the first adhesive and the second adhesive are rapidly cured, and at the same time, the first adhesive is foamed with water applied in a predetermined shape on one surface of the first surface base material. Since the second adhesive is foamed with water applied in a predetermined shape on one surface of the second surface base material, a large number of predetermined shapes are formed on one surface of the first covering material and in the vicinity thereof. Can be formed, and a large number of minute bubbles having a predetermined shape can be formed on one surface of the second covering material and in the vicinity thereof.

It is a schematic sectional drawing which shows one Embodiment of the non-contact-type data transmission / reception body of this invention. It is a schematic perspective view which shows the process A and the process D in one Embodiment of the manufacturing method of the non-contact-type data transmission / reception body of this invention. It is a schematic perspective view which shows the process B in one Embodiment of the manufacturing method of the non-contact-type data transmission / reception body of this invention. It is a schematic perspective view which shows the process C in one Embodiment of the manufacturing method of the non-contact-type data transmission / reception body of this invention. In one Embodiment of the manufacturing method of the non-contact-type data transmission / reception body of this invention, the process C is shown and it is a schematic sectional drawing in alignment with the AA of FIG. It is a schematic perspective view which shows the process E, the process F, and the process H in one Embodiment of the manufacturing method of the non-contact-type data transmission / reception body of this invention. In one Embodiment of the manufacturing method of the non-contact-type data transmission / reception body of this invention, the process F is shown and it is a schematic sectional drawing in alignment with the BB line of FIG. It is a schematic sectional drawing which shows process G in one Embodiment of the manufacturing method of the non-contact-type data transmission / reception body of this invention. It is a schematic sectional drawing which shows process G in one Embodiment of the manufacturing method of the non-contact-type data transmission / reception body of this invention.

Embodiments of a non-contact type data receiving / transmitting body and a manufacturing method thereof according to the present invention will be described.
This embodiment is specifically described for better understanding of the gist of the invention, and does not limit the present invention unless otherwise specified.

"Non-contact type data receiver / transmitter"
FIG. 1 is a schematic cross-sectional view showing an embodiment of a non-contact type data transmitting / receiving body of the present invention.
The contactless data receiving / transmitting body 10 of this embodiment includes an inlet 11, a first covering material 13 that covers one surface 11a of the inlet 11, and a second covering that covers the other surface 11b of the inlet 11. A first surface base material 21 provided on the material 14 and a surface (hereinafter referred to as “one surface”) 13a opposite to the surface in contact with the inlet 11 of the first covering material 13; A second surface base material 22 provided on a surface (hereinafter referred to as “one surface”) 14a opposite to the surface in contact with the inlet 11 of the second covering material 14 is schematically configured. Yes.
Further, one surface 13a of the first covering material 13 and a part of the vicinity thereof have a region 13e in which a large number of minute bubbles 13d are formed, and the one surface 14a of the second covering material 14 and A part of the vicinity thereof has a region 14e in which a large number of minute bubbles 14d are formed.
The first surface base material 21 is bonded to one surface 13 a of the first covering material 13, and the second surface base material 22 is bonded to one surface 14 a of the second covering material 14.

 Here, the vicinity of one surface 13a of the first covering material 13 is, for example, an inlet from one surface 13a of the first covering material 13 when the thickness of the first covering material 13 is 0.5 mm. It refers to a portion of about 0.1 mm on the 11 side. Similarly, the vicinity of one surface 14a of the second covering material 14 is, for example, an inlet from one surface 14a of the second covering material 14 when the thickness of the second covering material 14 is 0.5 mm. It refers to a portion of about 0.1 mm on the 11 side.

The bubbles 13d of the first covering material 13 are generated by foaming of the first adhesive forming the first covering material 13 in the process of forming the first covering material 13.
In the first covering material 13, air bubbles may be generated in portions other than the one surface 13 a and the vicinity thereof. In particular, the first covering material 13 is formed in the one surface 13 a and the vicinity thereof. The ratio (volume ratio) of the occupied bubbles 13d is high.

Similarly, the bubbles 14d of the second covering material 14 are generated by foaming of the second adhesive forming the second covering material 14 in the process of forming the second covering material 14.
In the second covering material 14, air bubbles may also be generated in portions other than the one surface 14 a and the vicinity thereof. In particular, in the one surface 14 a and the vicinity thereof, the second covering material 14 The ratio (volume ratio) of the occupied bubbles 14d is high.

The size of the bubble 13d (the diameter of the largest portion of each bubble) is not particularly limited, but the size of the bubble 13d formed in the process of forming the first covering material 13 is usually 100 μm to 5 mm.
The size of the bubbles 14d (the diameter of the largest portion of each bubble) is not particularly limited, but the size of the bubbles 14d formed in the process of forming the second coating material 14 is usually 100 μm to 5 mm. .

 In addition, the bubbles 13d are provided in an arbitrary shape on one surface 13a of the first covering material 13, and the bubbles 14d are provided in an arbitrary shape on one surface 14a of the second covering material 14. Yes. Thereby, the information (identification information) which consists of a character, a symbol, a pattern, etc. for identifying the non-contact type data receiving / transmitting body 10 can be displayed by the bubbles 13d and 14d, for example.

The first covering material 13 and the second covering material 14 are collectively referred to as the covering material 12, and the first surface base material 21 and the second surface base material 22 are collectively referred to as the surface base material 20. Sometimes it is.
In the non-contact type data receiving / transmitting body 10, both surfaces (one surface 11 a and the other surface 11 b) of the inlet 11 are directly covered with the covering material 12. Further, the non-contact type data receiving / transmitting body 10 includes a first surface base material 21, a first covering material 13, an inlet 11, a second covering material 14, and a second surface base material 22. In the thickness direction, the layers are laminated in this order. Thereby, the non-contact type data receiving / transmitting body 10 has a substantially rectangular shape in a plan view, for example.

The inlet 11 is generally configured by a base material 15 and an IC chip 16 and an antenna 17 which are provided on one surface 15a of the base material 15 and are electrically connected to each other.
The antenna 17 is a dipole antenna composed of a pair of planar radiating elements 18 and 19 made of various conductors, facing each other and having feed points (portions connected to the IC chip 16) on the facing sides. is there.
The length in the longitudinal direction of the antenna 17 corresponds to a half wavelength of the frequency (300 MHz to 30 GHz) of the ultra-high frequency band <UHF> and the microwave band that can be used for a non-contact IC module such as a non-contact IC card. It is the length to do. That is, the length in the longitudinal direction of the radiating elements 18 and 19 is a length corresponding to a quarter wavelength.

One surface 11 a of the inlet 11 corresponds to one surface 15 a of the base material 15, and the other surface 11 b of the inlet 11 corresponds to the other surface 15 b of the base material 15.
Therefore, the IC chip 16 and the antenna 17 are covered with the first covering member 13 on the one surface 11 a of the inlet 11.

 Then, on the four side surfaces of the non-contact type data transmitting / receiving body 10, the end surface of the first surface base material 21, the end surface of the first covering material 13, the end surface of the base material 15, and the second covering material The end surface of 14 and the end surface of the second surface base material 22 form the same surface. More specifically, for example, on the side surface 10 a of the non-contact type data transmitting / receiving body 10, the end surface 21 a of the first surface base material 21, the end surface 13 b of the first covering material 13, and the end surface 15 c of the base material 15. And the end surface 14b of the 2nd coating | covering material 14 and the end surface 22a of the 2nd surface base material 22 have comprised the same surface. Similarly, on the side surface 10b of the non-contact type data receiving / transmitting body 10, the end surface 21b of the first surface base material 21, the end surface 13c of the first covering material 13, the end surface 15d of the base material 15, and the second surface The end surface 14c of the covering material 14 and the end surface 22b of the second surface base material 22 form the same surface.

The thickness of the first covering material 13 is not particularly limited, but at least unevenness caused by the IC chip 16 and the antenna 17 of the inlet 11 does not appear on one surface (outer surface) 10 c of the non-contact type data receiving / transmitting body 10. And the inlet 11 is not damaged by an external impact, for example, within a range of 10 μm to 2000 mm.
The thickness of the second covering material 14 is not particularly limited, but is such that the inlet 11 is not damaged by an external impact, and is, for example, in the range of 10 μm to 2000 mm.

 Furthermore, when the non-contact type data receiving / transmitting body 10 is made sufficiently flexible (flexible) and the non-contact type data receiving / transmitting body 10 is bent, the first covering material 13 is formed with respect to the inlet 11. It is preferable that the thickness of the first covering material 13 and the thickness of the second covering material 14 are equal in order to prevent the stress caused by the difference in thickness between the first covering material 14 and the second covering material 14.

 Further, as described above, the bubbles 13d are mainly formed on one surface 13a of the first covering material 13 and the vicinity thereof, and the bubbles 14d are mainly formed on the one surface 14a of the second covering material 14 and the vicinity thereof. Since they are formed, the presence of these bubbles 13d and 14d does not cause the antenna 17 to bend, so that the communication characteristics such as the resonance frequency of the antenna 17 do not deteriorate.

The covering material 12 (the first covering material 13 and the second covering material 14) is in a liquid state before use, and without adding external conditions such as heating, ultraviolet irradiation, and electron beam irradiation, the main agent and the curing agent. It consists of a two-component mixed urethane resin that cures by the reaction of
Since this two-component mixed urethane resin has tackiness (property that can be temporarily fixed) after curing, one surface 13a of the first covering material 13, that is, the non-contact type data transmitter / receiver 10 One surface 10c and one surface 14a of the second covering material 14, that is, the other surface 10d of the non-contact type data receiving / transmitting body 10 have tackiness.

 The peel strength after curing of the two-component mixed urethane resin, that is, the peel strength of the coating material 12 (the first coating material 13 and the second coating material 14) with respect to the inlet 11 is 1.0 N / mm or more. It is preferable.

As a two-component mixed urethane resin, a silane coupling agent having an epoxy group was further added to a mixed solution containing an isocyanate as a first liquid and a polyol having a hydroxyl group as a second hydroxyl group as a second liquid. Things are used.
In this two-component mixed urethane resin, the isocyanate and the polyol are mixed at a blending ratio of the isocyanate group of the isocyanate and the hydroxyl group of the polyol (-NCO / -OH) of 0.8 or more and 1.1 or less. ing. In the two-component mixed urethane resin, the amount of the silane coupling agent having an epoxy group is 0.1% by mass or more and 2.0% by mass or less.

In addition, as the two-component mixed urethane resin, an aspect ratio of 10 or more and 100 or less is further added to a mixed solution containing an isocyanate as a first solution and a polyol whose hydroxyl group is a primary hydroxyl group as a second solution. What added the inorganic fine particle is used.
In this two-component mixed urethane resin, the isocyanate and the polyol are mixed at a blending ratio of the isocyanate group of the isocyanate and the hydroxyl group of the polyol (-NCO / -OH) of 0.8 or more and 1.1 or less. ing. In this two-component mixed urethane resin, the blending amount of the inorganic fine particles having an aspect ratio of 10 or more and 100 or less is 5% by mass or more and 40% by mass or less.

 Specific examples of such a two-component mixed urethane resin include an adhesive composed of a main agent (trade name: MLT2900, manufactured by Etec) and a curing agent (trade name: G3021-B174, manufactured by Etec). .

 In addition, the adhesive forming the covering material 12 may contain a colorant such as a known inorganic pigment, organic pigment, or dye as necessary. The coating material 12 is colored in an arbitrary color by the colorant.

 As the base material 15, a base material made of a polyester resin such as polyethylene terephthalate (PET), glycol-modified polyethylene terephthalate (PET-G), polybutylene terephthalate (PBT), polyethylene naphthalate (PEN); polyethylene (PE), polypropylene Base material made of polyolefin resin such as (PP); Base material made of polyfluorinated ethylene resin such as polyvinyl fluoride, polyvinylidene fluoride, polytetrafluoroethylene; Made of polyamide resin such as nylon 6, nylon 6,6 Base material: Base material made of vinyl polymer such as polyvinyl chloride (PVC), ethylene-vinyl acetate copolymer, polyvinyl alcohol, vinylon; polymethyl methacrylate, polyethyl methacrylate, polyethyl acrylate, polyacryl Base material made of acrylic resin such as butyl; Base material made of polystyrene; Base material made of polycarbonate (PC); Base material made of polyarylate; Base material made of polyimide; Fine paper, thin paper, glassine paper, sulfate paper, etc. A substrate made of paper is used.

 The IC chip 16 is not particularly limited, and information can be written and read out in a non-contact state via the antenna 17, and a non-contact type IC tag, a non-contact type IC label, or a non-contact type IC card. Anything can be used as long as it is applicable to RFID media.

 The antenna 17 is formed on one surface 15a of the base material 15 using a polymer type conductive ink in a predetermined pattern by a printing method such as screen printing or ink jet printing, or by etching the conductive foil. It is made by metal plating.

 Examples of polymer-type conductive inks are those in which conductive fine particles such as silver powder, gold powder, platinum powder, aluminum powder, palladium powder, rhodium powder, carbon powder (carbon black, carbon nanotube, etc.) are blended in the resin composition Is mentioned.

If a thermosetting resin is used as the resin composition, the polymer conductive ink becomes a thermosetting type capable of forming a coating film forming the antenna 17 at 200 ° C. or less, for example, about 100 to 150 ° C. A path through which electricity of the coating film forming the antenna 17 flows is formed when the conductive fine particles constituting the coating film contact each other, and the resistance value of the coating film is on the order of 10 ⁻⁵ Ω · cm.
Further, as the polymer type conductive ink in the present invention, known ones such as a photocuring type, a penetrating drying type, and a solvent volatilization type are used in addition to the thermosetting type.

 The photocurable polymer type conductive ink contains a photocurable resin in the resin composition and has a short curing time, so that the production efficiency can be improved. Examples of the photo-curing polymer type conductive ink include, for example, a thermoplastic resin alone, or a blend resin composition of a thermoplastic resin and a crosslinkable resin (particularly, a crosslinkable resin composed of polyester and isocyanate) and 60 fine conductive particles. More than 10% by mass and 10% by mass or more of a polyester resin, that is, a solvent volatile type or a crosslinked / thermoplastic combination type (however, the thermoplastic type is 50% by mass or more), heat Polyester resin alone or a blend resin composition of a thermoplastic resin and a crosslinkable resin (especially a crosslinkable resin composed of polyester and isocyanate) is blended with 10% by mass or more of a polyester resin, that is, a crosslinkable type or A cross-linking / thermoplastic combination type is preferably used.

Examples of the conductive foil forming the antenna 17 include copper foil, silver foil, gold foil, platinum foil, and aluminum foil.
Furthermore, examples of the metal plating that forms the antenna 17 include copper plating, silver plating, gold plating, and platinum plating.

 As the surface base material 20, the same material as the base material 15 is used.

 According to the non-contact type data receiving / transmitting body 10, the region 13e in which a large number of minute bubbles 13d are formed is provided on one surface 13a of the first covering material 13 and a part of the vicinity thereof. Since one surface 14a of the second covering material 14 and a part of the vicinity thereof are provided with a region 14e in which a large number of minute bubbles 14d are formed, non-contact type data transmission / reception is performed by the bubbles 13d and 14d. The body 10 can be identified (authentication determination). Further, the first surface base material 21 is attached to one surface 13 a of the first covering material 13, and the bubbles 13 d are covered with the first surface base material 21, and the second covering material 14 Since the second surface base material 22 is affixed to one surface 14a and the air bubbles 14d are covered with the second surface base material 22, the air bubbles 13d and 14d are damaged or the air bubbles 13d and 14d are crafted. Can be prevented. That is, it is possible to prevent a third party from falsifying the identification information of the non-contact type data receiving / transmitting body 10 displayed by the bubbles 13d and 14d.

 In addition, since one surface 11a and the other surface 11b of the inlet 11 are directly covered with the covering material 12 made of a two-component mixed urethane resin, the covering material 12 forms an IC chip 16 or an antenna constituting the inlet 11. 17 is formed so as to follow the concavo-convex shape caused by 17, so that the adhesion between the inlet 11 and the covering material 12 is excellent, and peeling at the interface between the inlet 11 and the covering material 12 can be prevented. 11 is thin and excellent in flexibility while imparting heat resistance and weather resistance.

 Furthermore, since the non-contact type data receiving / transmitting body 10 has a simple configuration in which the one surface 11a and the other surface 11b of the inlet 11 are directly covered with the covering material 12, the non-contact type data receiving / transmitting body 10 can be easily manufactured. it can.

 In this embodiment, a region 13e in which a large number of minute bubbles 13d are formed is provided on one surface 13a of the first covering material 13 and a part of the vicinity thereof, and one of the second covering materials 14 is provided. Although the case where the region 14e in which a large number of minute bubbles 14d are formed is provided in a part of the surface 14a and the vicinity thereof, the present invention is not limited to this. In the present invention, a region (one surface) opposite to the surface that is in contact with the inlet of the covering material and its vicinity are provided with a region where a large number of minute bubbles are formed over the entire area of the one surface. It may be done.

 Moreover, in this embodiment, although the case where the bubbles 13d and 14d were provided in the both surfaces (one surface 10c and the other surface 10d) side of the non-contact-type data transmission / reception body 10 was illustrated, this invention is not limited to this. It is not limited. In the present invention, it is sufficient that bubbles are provided on either one side or the other side of the non-contact type data transmitting / receiving body.

 Moreover, in this embodiment, although the case where the non-contact type data transmission / reception body 10 has comprised the planar view substantially rectangular shape was illustrated, this invention is not limited to this. In the present invention, the non-contact data receiving / transmitting body may have an arbitrary card shape or tag shape when viewed in plan.

 Moreover, although this embodiment illustrated the case where the inlet 11 which has the antenna 17 which consists of a dipole antenna comprised from a pair of planar radiation elements 18 and 19 was provided, this invention is not limited to this. In the present invention, the antenna may be a dipole antenna composed of a pair of frame-shaped radiating elements, a meander-shaped dipole antenna, or a monopole antenna.

"Method for manufacturing non-contact type data receiver / transmitter"
Next, with reference to FIGS. 1-9, the manufacturing method of the non-contact-type data transmission / reception body of this embodiment is demonstrated.
Here, as shown in FIG. 4, a long base material 15 </ b> A and an RFID antenna 17 and a large number of IC chips 16 that communicate with the antenna 17 are provided on one surface 15 a at equal intervals. The case where the above-mentioned non-contact type data receiving / transmitting body 10 is continuously manufactured using the inlet sheet 22 will be exemplified.

 First, as shown in FIG. 2, in the conveyance direction of the first surface base material 21 on a part of one surface 21 a of the long first surface base material 21 being conveyed in the direction of the arrow in the figure. Then, water is applied by the water applying means 31 (step A).

 In this step A, water is applied to one surface 21a of the first surface base material 21 in a shape that forms predetermined characters, symbols, and patterns.

 As the water application means 31, a sponge containing water, a spray nozzle capable of spraying water in a mist form, or the like is used.

 Next, as shown in FIG. 3, the first portion of the long first surface base material 21 conveyed in the direction of the arrow in the figure is coated with the first portion of the surface (one surface) 21a. The first adhesive 13A discharged from the nozzle 32 of the adhesive application device is applied linearly along the conveying direction of the surface base material 21 (step B).

As 1st adhesive agent 13A, the thing similar to the adhesive agent which forms said coating | covering material 12 is used.
Moreover, the width | variety which apply | coats the 1st adhesive agent 13A to the one surface 21a of the 1st surface base material 21, ie, the coating amount of the 1st adhesive agent 13A with respect to the one surface 21a of the 1st surface base material 21 Although there is no particular limitation, the size and number of IC chips 16 and antennas 17 provided on the inlet sheet 22 covered with the first adhesive 13A, and the first adhesive 13A are cured. According to the thickness etc. which are required for the 1st coating material 13 to be adjusted, it adjusts suitably.

 Next, as shown in FIG. 4, the inlet sheet 22 conveyed in the direction of the arrow in the figure is the first surface group at the opposing portion of the pair of rollers 33 and 34 that rotate in the direction of the arrow in the figure. While superposing on one surface 21a of the first surface base material 21 being conveyed in the direction of the arrow in the figure via the first adhesive 13A applied to one surface 21a of the material 21, the first By sandwiching the surface base material 21 and the inlet sheet 22 with the rollers 33 and 34, as shown in FIG. 5, the first surface base material is spread over almost the entire area between the first surface base material 21 and the inlet sheet 22. The first adhesive 13A applied to the one surface 21a of 21 is developed (step C).

 In this step C, the one surface 21a of the first surface base material 21 is provided with one surface 15a of the base material 15A, that is, the surface provided with the IC chip 16 and the antenna 17 in the inlet sheet 22 (hereinafter referred to as "one side" The inlet sheet 22 is superimposed on one surface 21a of the first surface base material 21 so that the surfaces 22a face each other.

In Step C, as described above, the first adhesive 13A made of a two-component mixed urethane resin that cures by the reaction between the main agent and the curing agent without applying external conditions is used. Therefore, the first adhesive 13 </ b> A has fluidity until it is developed between the first surface base material 21 and the inlet sheet 22, but gradually fluidizes as the reaction proceeds. At the same time as it is cured, it is foamed by water applied to one surface 21a of the first surface base material 21 to form bubbles 13d.
Thus, the one surface 22a of the inlet sheet 22 and the IC chip 16 and the antenna 17 provided on the one surface 22a are covered with the first adhesive 13A, and the first surface base material 21 The inlet sheet 22 is bonded on the one surface 21a. The first adhesive 13A becomes the first covering material 13 when cured.

 In Step C, the thickness of the first adhesive 13 </ b> A after being developed between the first surface base material 21 and the inlet sheet 22 is at least uneven due to the IC chip 16 and the antenna 17 of the inlet sheet 22. However, the IC chip 16 and the antenna 17 are not damaged due to external impact, such as not appearing on the surface 13d opposite to the surface of the first adhesive 13A in contact with the inlet sheet 22, The range is 10 μm to 2000 mm.

Moreover, in the process C, the force which pinches | interposes the 1st surface base material 21 and the inlet sheet 22 with a pair of rollers 33 and 34, ie, the force which presses the inlet sheet 22 with respect to the 1st surface base material 21 in the thickness direction. (Pressure) is not particularly limited, and is appropriately adjusted according to the thickness and size of the first surface base material 21 and the inlet sheet 22, the application amount of the first adhesive 13A, and the like, but 1 kg / cm is preferably ^{2 ~20kg} / cm ^2, more preferably ^{5kg / cm 2 ~10kg / cm 2} .

 By this step C, the IC chip 16 and the antenna 17 are completely covered by the first adhesive 13A, and the first adhesive 13A is almost completely spaced between the first surface base material 21 and the inlet sheet 22. Filled.

 Next, as shown in FIG. 2, the second surface substrate 23 is formed on the entire surface of the release layer that forms one surface 23 a of the long second surface substrate 23 that is conveyed in the direction of the arrow in the drawing. Water is applied by the water applying means 31A along the transport direction (step D).

 In this step D, water is applied to one surface 23a of the second surface base material 23 in a shape that forms predetermined characters, symbols, and patterns.

 As the water application unit 31A, the same one as the water application unit 31 is used.

 Next, as shown in FIG. 6, while conveying the laminated body α composed of the first surface base material 21 and the inlet sheet 22 in the direction of the arrow in the figure, the side opposite to the one surface 22 a of the inlet sheet 22. A surface (hereinafter referred to as “the other surface”) 22b, that is, a central portion of the other surface 15b of the base material 15A is discharged from the nozzle 35 of the adhesive application device along the transport direction of the laminate α. The second adhesive 14A is applied linearly (step E).

As the 2nd adhesive agent 14A, the thing similar to the adhesive agent which forms said coating | covering material 12 is used.
Further, the width of applying the second adhesive 14A to the other surface 22b of the inlet sheet 22, that is, the amount of the second adhesive 14A applied to the other surface 15b of the base material 15A is not particularly limited. It adjusts suitably according to the thickness etc. which are required for the 2nd coating | covering material 14 formed by hardening | curing the 2nd adhesive agent 14A.

 Next, as shown in FIG. 6, the second surface base material 23 being conveyed in the direction of the arrow in the figure is placed at the inlet portion of the pair of rollers 36 and 37 that rotate in the direction of the arrow in the figure. The second adhesive 14A applied to the other surface 22b of the sheet 22 is overlaid on the other surface 22b of the inlet sheet 22 constituting the laminate α conveyed in the direction of the arrow in the figure, By sandwiching the laminated body α and the second surface base material 23 with the rollers 36 and 37, as shown in FIG. The second adhesive 14A applied to the other surface 22b is developed (step F), and the first adhesive 13A and the inlet are provided between the first surface base 21 and the second surface base 23. Sheet 22 and second adhesive 14 DOO forms the order stacked, integrated laminate beta.

In this step F, as described above, the second adhesive 14A made of a two-component mixed urethane resin that is cured by the reaction of the main agent and the curing agent without applying external conditions is used. Therefore, the second adhesive 14 </ b> A has fluidity until it is developed between the laminate α and the second surface base material 23, but gradually becomes fluid as the reaction proceeds. At the same time as it is cured, it is foamed by water applied to one surface 23a of the second surface base material 23 to form bubbles 14d.
As a result, the other surface 22b of the inlet sheet 22 is covered with the second adhesive 14A, and the second surface base material 23 is bonded onto the laminate α. When the second adhesive 14A is cured, the second covering material 14 is obtained.

 In this process F, the thickness of the second adhesive 14A after being developed between the laminate α and the second surface base material 23 is the same as that of the first surface base material 21 and the inlet sheet in the above-mentioned process C. The thickness of the first adhesive 13 </ b> A after being unfolded between 22 and the thickness of the first adhesive 13 </ b> A is, for example, in the range of 10 μm to 1000 mm.

Moreover, in the process F, the force which pinches | interposes the laminated body (alpha) and the 2nd surface base material 23 with a pair of rollers 36 and 37, ie, the force which presses the 2nd surface base material 23 with respect to the inlet sheet 22 in the thickness direction. (Pressure) is not particularly limited, and is appropriately adjusted according to the thickness and size of the laminate α and the second surface base material 23, the coating amount of the second adhesive 14A, and the like, but 1 kg / cm is preferably ^{2 ~20kg} / cm ^2, more preferably ^{5kg / cm 2 ~10kg / cm 2} .

 By this step F, the second adhesive 14 </ b> A is filled between the laminate α and the second surface base material 23 with almost no gap.

 Next, as shown in FIG. 8, the first surface base material 21, the first coating material 13, the inlet sheet 22, the second coating material 14, and the second surface are cut by a cutting blade (not shown) of the cutting device. The laminate γ made of the base material 23 is cut in the thickness direction (along the alternate long and short dash line in FIG. 8) in accordance with the shape (size) of the inlet 11, and as shown in FIG. γ is singulated (step G), and consists of a first surface base material 21, a first coating material 13, an inlet sheet 22 (inlet 11), a second coating material 14, and a second surface base material 23. The non-contact type data receiving / transmitting body 10 shown in FIG. 1 is obtained.

 By the way, as described above, the first adhesive 13 </ b> A is foamed by water applied to one surface 21 a of the first surface base 21 at the same time as the main agent and the curing agent react and cure with time. Thus, bubbles 13d are formed. Similarly, the second adhesive 14A is cured by the reaction of the main agent and the curing agent with the passage of time, and at the same time, the second adhesive 14A is foamed by water applied to one surface 23a of the second surface base material 23, and the bubbles 14d. Form.

When it is desired to form relatively large bubbles 13d and 14d, as shown in FIG. 6, the first surface base material 21, the first adhesive 13A, and the inlet sheet that are conveyed in the direction of the arrow in the figure. 22, a laminated body β composed of the second adhesive 14A and the second surface base material 23 is heated at a predetermined temperature by a heating device 40 including a pair of heaters 38 and 39 disposed so as to sandwich the laminated body β. (Step H).
The heating step includes the first heating step of heating the stacked body α after forming the stacked body α and the second heating of the stacked body β after forming the stacked body β. It is preferable to divide into the heating step.

In this step H, the stacked body β is heated to 60 to 70 ° C. by the heating device 40.
By this process H, the first adhesive 13A and the second adhesive 14A are rapidly cured, and at the same time, the first adhesive 13A is foamed by water applied to one surface 21a of the first surface base material 21. Thus, a relatively large bubble 13d is formed, and the second adhesive 14A is foamed by water applied to one surface 23a of the second surface base 23 to form a relatively large bubble 14d.

 Thus, the first adhesive 13A is cured to form the first covering material 13, and predetermined characters and symbols are formed on one surface 13a of the first covering material 13 and a part of the vicinity thereof. A large number of minute bubbles 13d for displaying a pattern are formed. Further, the second adhesive 14A is cured to form the second covering material 14, and predetermined characters, symbols, and the like are formed on one surface 14a of the second covering material 14 and a part of the vicinity thereof. A large number of minute bubbles 14d for displaying a pattern are formed.

 According to the manufacturing method of the non-contact type data transmitting / receiving body of this embodiment, the first surface base material 21, the first adhesive 13A, the inlet sheet 22, the second adhesive 14A, and the second surface base material 23, the first adhesive 13A and the second adhesive 14A are rapidly cured, and at the same time, the first adhesive 13A is applied to one surface of the first surface base material 21. Since the second adhesive 14A is foamed with water applied in a predetermined shape on the one surface 23a of the second surface base material 23, the first coating is formed. A large number of minute bubbles 13d having a predetermined shape can be formed on one surface 13a of the material 13 and its vicinity, and a predetermined shape can be formed on one surface 14a of the second covering material 14 and its vicinity. A large number of It is possible to form fine bubbles 14d.

 In this embodiment, the above-described non-contact type data receiving / transmitting body 10 is continuously manufactured by using the long first surface base material 21, the inlet sheet 22, and the second surface base material 23. Although the case is illustrated, the present invention is not limited to this. In this invention, you may manufacture a non-contact-type data receiving / transmitting body separately using the 1st surface base material, inlet, and 2nd surface base material which were separated into pieces previously.

 In this embodiment, in step A, water is applied to a part of one surface 21a of the first surface base material 21, and in step D, one surface 23a of the second surface base material 23 is provided. Although the case where water is applied to the part is illustrated, the present invention is not limited to this. In the present invention, water may be applied to the entire surface of one surface of the first surface substrate or the entire surface of one surface of the second surface substrate.

DESCRIPTION OF SYMBOLS 10 ... Non-contact-type data transmission / reception body, 11 ... Inlet, 12 ... Coating | covering material, 13 ... 1st coating | covering material, 13A ... 1st adhesive agent, 14 ... 1st Two coating materials, 14A ... second adhesive, 15, 15A ... base material, 16 ... IC chip, 17 ... antenna, 18, 19 ... radiating element, 21 ... 1st surface base material, 22 ... inlet sheet, 23 ... 2nd surface base material, 31, 31A ... water application means, 32 ... nozzle, 33, 34 ... roller, 35 ... Nozzle, 36, 37 ... Roller, 38, 39 ... Heater, 40 ... Heating device.

Claims (2)

Non-contact type data receiver / transmitter comprising: an inlet; a covering material that covers both sides of the inlet; and a surface base material provided on a surface of the covering material opposite to the surface in contact with the inlet. Because
The covering material is made of a two-component mixed urethane resin, and the covering material includes a layer in which bubbles on the surface side in contact with the inlet are not formed, a surface opposite to the surface in contact with the inlet, and contactless data reception and transmission body that a layer the bubbles in the vicinity are formed, characterized in Tona Rukoto. An inlet; a covering material that covers both sides of the inlet; and a surface base material provided on a surface of the covering material that is opposite to the surface that is in contact with the inlet. consists type urethane resin, the coating material is a layer bubble surface side in contact with the inlet is not formed, to the surface in contact with the inlet air bubble surface and its vicinity of the opposite side is formed a layer was a method for manufacturing a non-contact type data reception and transmission body Ru Tona,
Step A for applying water to at least a part of one surface of the first surface substrate;
Step B of applying a first adhesive composed of a two-component mixed urethane resin to the surface of the first surface base material on which water is applied;
Via the first adhesive applied to the first surface base material, the inlet is superposed on one surface of the first surface base material, and the inlet with respect to the first surface base material Step C for developing the first adhesive between one surface of the first surface base material and the inlet by pressing
Step D for applying water to at least a part of one surface of the second surface base material;
Applying a second adhesive made of a two-component mixed urethane resin to a surface of the inlet opposite to the surface in contact with the first adhesive; and
Via the second adhesive applied to the inlet, the second surface base material is overlaid on the inlet with the water-coated surface facing each other, and the second surface base material is overlapped with the inlet. Step F of developing the second adhesive between one surface of the second surface base material and the inlet by pressing the surface base material of
A step G of cutting a laminate including the first surface base material, the first adhesive, the inlet, the second adhesive, and the second surface base material in accordance with the shape of the inlet; A method for manufacturing a non-contact type data receiving / transmitting body.

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