JP2006254071A - Transfer-type antenna and transfer method thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transfer type antenna and a transferring method, which requires no film substrate conventionally playing an important role, and allows easy construction of only a minute antenna part, while maintaining of shape at construction and adjusting of positional precision being easy. <P>SOLUTION: In the transfer type antenna, a transfer support layer is formed on a substrate having peeling characteristics. A conductive pattern layer is provided on the transfer support layer for forming an antenna wiring sandwiched between a protective pattern layer and an adhesive pattern layer. The adhesive pattern layer is bonded to the surface of a process side, and the substrate having peeling characteristics is removed. The transfer support layer is melted and removed so that the process side can be attached with an antenna. With this configuration, manufacturing property of the transfer-type antenna improves significantly, and dropping or chipping of antenna components at construction is prevented. Maintaining of shape and adjusting of positional precision are easy, and only a minute antenna part can be easily constructed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an antenna device suitable for being retrofitted on a window glass or the like for an automobile, and more particularly to a transfer type antenna capable of providing an antenna on a vehicle glass or the like by transfer and a transfer method thereof.

  Recent automobiles are equipped with antenna devices that receive various types of radio waves, such as AM / FM radio, radio, telephone, TV, and GPS. As one of such radio wave receiving antennas, there is a type of film antenna that is attached to a window glass of a car. This film antenna has a receiving element surface provided with a radio wave receiving part made of a linear conductive pattern on a transparent film base material, the conductive pattern has a shape suitable for the desired radio wave, and the formation of the conductive pattern As a method, it is formed by printing or dispenser using pattern etching of copper foil or conductive ink of silver paste. On the other hand, a transparent adhesive layer and a double-sided adhesive tape are provided on the surface opposite to the receiving element surface of the film substrate, and are configured to be used by being attached to a car window glass together with the film substrate. For this reason, a highly transparent material is selected for the film substrate, and the substrate portion other than the conductive pattern is removed by punching or the like to provide an opening so as not to obstruct the driver's view. For example, Patent Documents 1 and 2 describe such a film antenna.

  In Patent Document 3, a first layer conductive pattern, a second layer insulating pattern, and a third layer conductive pattern, which are sequentially laminated on a transfer film, are transferred to the inside of an in-vehicle glass plate. An in-vehicle antenna formed by a printing method is described.

Japanese Patent Laid-Open No. 2003-249807 JP 2003-115713 A JP 2001-211020 A

  In the case of a conventional film antenna, there are limitations on the configuration and dimensions of the antenna pattern, the selection of materials used, etc. so as not to hinder the driver's view. For example, according to Article 29 of the safety standard for automobile window glass, the visible light transmittance needs to be 70% or more as the transparency of the sticking part other than the wiring part. The film base material is important as a support when it is attached to the window glass of a car, but has the largest area among the structures of the film antenna and greatly affects the transparency.

  In addition, as a law relating to a film antenna, there is Gazette No. 2778, Item 9, Ministry of Transport Notification No. 820, which defines the width of equipment to be attached to a windshield. According to this notification, the width of the device is 0.5 mm or less in the test area A and 1.0 mm or less in the test area B, and therefore the wiring portion that is a metal-based material needs to have this specified width. For example, when designing an antenna to be affixed to the test area A, in order to provide an opening by punching out a portion along the wiring portion, the width of the film substrate after punching is made as narrow as possible. It is desirable that the width is 1.0 mm or less with respect to the width. However, if an opening is provided in the film base portion, it is difficult to maintain the shape at the time of pasting and adjust the positional accuracy.

  Therefore, in order to solve such problems, the present inventors do not need a film base material that has played an important role in the past, and can easily apply only a fine pattern portion to a car window glass. Type antennas have been studied. For example, Patent Document 3 discloses a configuration of a transfer antenna that is useful for solving such problems.

  However, in the case of a transfer type antenna, a desired print pattern is formed on a film substrate having peelability by a screen printing method or the like, and only this print pattern portion is transferred to a car window glass. Therefore, it is necessary to use an adhesive resin having an adhesive action on the printed pattern or to provide an additional adhesive layer. In this case, in order to store the transfer type antenna before construction, it is necessary to protect the adhesive surface with another release film, and this release film is peeled off during construction. Since the transfer antenna has a small contact area between the film substrate and the printing pattern, the printing pattern is easily peeled off, and the printing pattern is easily dropped or chipped. Therefore, a disconnection failure is likely to occur. Moreover, it becomes difficult to adjust the balance of the peel strength between the film substrate and the release film for protecting the adhesive surface. Furthermore, when a print pattern is formed on a film substrate having peelability, repelling and unevenness occur, and it becomes difficult to adjust the ink composition and viscosity to improve the pattern shape and accuracy.

  Therefore, an object of the present invention is to provide a transfer type antenna that does not require a film base material that has played an important role in the past, can easily maintain the shape during construction and adjust the positional accuracy, and can easily construct only a fine antenna portion. And providing a transcription method.

  In order to solve the above-mentioned problems, the transfer antenna according to the present invention is characterized in that a transfer support layer is provided on a substrate having releasability in order to remove a film substrate that has conventionally played an important role from the antenna configuration. Thus, an antenna configuration including a conductive pattern layer for forming an antenna wiring sandwiched between the protective pattern layer and the adhesive pattern layer is provided. When transferring the antenna configuration, the adhesive pattern layer is attached to the glass surface of the vehicle, and then the peelable substrate is peeled off, and the antenna configuration is transferred to the glass surface of the vehicle together with the transfer support layer.

  The transfer support layer is a layer with a fine pattern antenna structure and good adhesion, and this transfer support layer can be transferred to the car glass surface together with the antenna structure, so that the shape maintenance and position during construction can be maintained. Adjustment of accuracy is easy, and only a fine antenna part can be easily constructed. In addition, the transfer support layer can be formed over the entire surface of the substrate having peelability or an area larger than the fine antenna portion, and the peel strength between the substrate having peelability and the transfer support layer can be increased. . This makes it easy to adjust the balance of the peel strength between the base material and the contact-release film, even when the adhesive surface is protected with another release film to store the transfer-type antenna before construction. Occurrence of falling off and chipping is less likely to occur.

  According to an embodiment of the present invention, there is provided a transfer type antenna wherein the transfer support layer can be dissolved and removed with water, alcohol or a mixture of water and alcohol. The transfer support layer can be formed thinner than a conventional film substrate and can increase the visible light transmittance. However, it is preferable that the transfer support layer should not be viewed from the viewpoint of not obstructing the driver's field of view. . For this reason, it was made easy to dissolve and remove with a solvent after construction.

  According to another embodiment of the present invention, there is provided a transfer type antenna further comprising an adhesive support pattern layer on a portion of the transfer support layer where the conductive pattern layer is not provided. The adhesive support pattern layer can be provided in the same configuration as the protective pattern layer and the adhesive pattern layer that does not include a conductive pattern layer, only the adhesive pattern layer, or another configuration. The adhesive support pattern layer adjusts the peel strength of the release film for protecting the adhesive surface, and at the same time, it is transferred to the car glass surface together with the antenna structure to improve the adhesion to the car glass surface. Therefore, the shape maintenance at the time of construction and the adjustment of the position accuracy can be further facilitated.

  The present invention is also intended to provide a transfer method for a transfer antenna. According to the present invention, a transfer provided with an antenna configuration including a conductive pattern layer that forms an antenna wiring sandwiched between a protective pattern layer and an adhesive pattern layer via a transfer support layer on a peelable substrate. A type antenna is characterized in that the adhesive pattern layer is attached to the surface of an adherend such as an automotive glass, and the transfer support layer is dissolved and removed after the substrate having peelability is peeled off. This is a transfer method. After transferring the transfer support layer together with the antenna structure to the glass surface of the car, etc., the transfer support layer can be easily dissolved and washed by wiping with an organic solvent, water, alcohol or a mixture of water and alcohol, etc. Can be removed.

  In addition, in the case of a transfer type antenna further provided with an adhesive support pattern layer in a portion where the conductive pattern layer is not provided on the transfer support layer, the adhesive pattern layer and the adhesive support pattern layer are formed on a vehicle glass or the like. The transfer method is characterized in that the adhesive support pattern layer is removed after the adhesive support surface is adhered, the peelable substrate is peeled off, the transfer support layer is dissolved and removed. The removal of the adhesive support pattern layer can be performed by dissolving / removing in the same manner as the transfer support layer, and can be peeled / removed by adjusting the adhesive force with the adherend surface.

  By these transfer methods, it is possible to prevent the antenna configuration from dropping or chipping during construction of the transfer type antenna, it is easy to maintain the shape and adjust the position accuracy, and it is possible to easily construct only the fine antenna portion.

  The present invention will be described in detail below.

  FIG. 1 is a plan model view showing a general configuration example of a transfer type antenna of the present invention, and FIG. 2 is an enlarged partial cross-sectional model view showing an antenna configuration part of the transfer type antenna of FIG. As shown in FIGS. 1 and 2, the transfer type antenna according to the general configuration example of the present invention has a protective pattern layer 3 and an adhesive pattern layer on a substrate 1 having peelability via a transfer support layer 2. An antenna configuration including a conductive pattern layer 4 that forms an antenna wiring sandwiched between 5 is provided. When the antenna configuration is transferred, the adhesive pattern layer 5 is bonded to a glass surface of a vehicle, and then the substrate 1 And the antenna structure together with the transfer support layer 2 can be transferred to the car glass surface. Further, as well shown in FIG. 2, the adhesive surface of the adhesive pattern layer 5 is protected by a release film 6.

  As the substrate 1 having peelability, a flexible film is desirable. It is not particularly limited as long as it is a flexible plastic substrate. For example, polyethylene, polypropylene, polycarbonate, acrylic resin, polyethylene terephthalate, polyethylene naphthalate, polyethylene imide, polyimide, polyether imide, polyamide, polyamide imide, etc. A film is used. In particular, it is preferable to use a polyethylene terephthalate film having good mechanical durability and heat resistance. The thickness of the substrate may be any thickness considering workability and flexibility, such as bending or tearing at the time of manufacture of the transfer antenna or construction on the adherend surface such as car glass, and is 10 μm to 200 μm. Is preferable, and it is still more preferable in it being 25 micrometers-100 micrometers.

  As long as the substrate 1 is peelable from the transfer support layer 2, a film material may be used as it is, and a slightly adhesive layer or an acrylic or silicone-based peel is used to improve the peelability or adjust the peel strength. A layer may be provided on the film material. The peel strength of the substrate varies depending on the shape of the antenna, the adhesive force of the adhesive pattern layer, etc., but it can be easily peeled off during construction, and it is preferable that the peel strength is easily peeled off with a slight impact. For this reason, it is practically preferable that the peel strength between the substrate 1 having peelability and the transfer support layer 2 is in the range of 0.1 to 100 gf / cm.

  The transfer support layer 2 can be formed in a larger area than the entire surface of the substrate 1 having peelability or a fine antenna portion. Since the peel strength apparently becomes smaller when the area is smaller, the area of the peeling interface between the substrate 1 and the transfer support layer 2 is increased to facilitate peeling at the interface between the adhesive pattern layer 5 and the release film. Can be sure. The interface between the transfer support layer 2 and the protective pattern layer 3 transfers the antenna configuration together with the transfer support layer 2 to the surface of the adherend such as the glass surface of the vehicle. There is a need to be stronger. For this reason, the transfer support layer 2 needs to have good adhesiveness with the protective layer.

  According to an embodiment of the present invention, the transfer support layer 2 can be dissolved and removed with water, alcohol, or a mixture of water and alcohol. The transfer support layer 2 can be formed thinner than a conventional film substrate and can increase the visible light transmittance, but it is not seen from the viewpoint of not obstructing the visibility of the driver or the like. Is preferable. For this reason, it was made easy to dissolve and remove with a solvent after construction. In particular, dissolution / removal with water or alcohol is effective in that there are few problems in working environment and air pollution.

  Examples of the material used for the transfer support layer 2 include polyvinyl alcohol, polyvinyl acetal, polyvinyl butyral, nylon resin, ether resin, ester resin, acrylic resin, methacrylic resin, vinyl chloride resin, polycarbonate, polypropylene, polyimide, polyurethane, A phenoxy resin, a phenol resin, an epoxy resin, a silicone resin, or the like can be used singly or in combination of two or more, and may be cured by heat, ultraviolet light, electron beam, moisture, or the like, if necessary. Further, these may be formed by laminating two or more layers.

  The thickness of the transfer support layer 2 can be formed in the range of 0.5 μm to 50 μm, preferably 1 to 10 μm, and more preferably 1 μm to 5 μm in consideration of releasability from the substrate 1 and solubility with a solvent or the like.

  A method for forming the transfer support layer 2 is not particularly limited, and a general coating machine or printing machine can be used. For example, a forming method using a coating machine such as gravure coating, die coating, wire bar coating, reverse roll coating, flow coating, lip coating, or comma coating, or a forming method using a printing method such as silk printing or gravure printing is used.

  The protective pattern layer 3 is preferably made of a material that requires high durability in order to protect the antenna and that suppresses the occurrence of deterioration such as cracks against temperature changes in the vehicle interior. Moreover, since it remains on the glass surface for vehicles after construction, a highly transparent one is desirable.

  Examples of the material used for the protective pattern layer 3 include ester resin, ether resin, acrylic resin, methacrylic resin, vinyl chloride resin, polycarbonate, polypropylene, polyimide, polyurethane, polyvinyl acetal, polyvinyl butyral, nylon resin, phenoxy resin, A phenol resin, an epoxy resin, a silicone resin, or the like can be used singly or in combination of two or more, and may be cured by heat, ultraviolet light, electron beam, moisture, or the like, if necessary. Further, these may be formed by laminating two or more layers. A method for forming the protective pattern layer 3 is not particularly limited. For example, a printing method such as silk printing, gravure printing, and offset printing, a forming method using an inkjet printer or a dispenser, or the like can be used. The film thickness is not particularly limited as long as the mechanical strength of the protective pattern layer can be obtained, but it may be about 3 μm to 50 μm, and more preferably 10 μm to 40 μm.

  The protective pattern layer 3 is made of inorganic pigments such as silicon oxide, titanium oxide, and carbon black, organic / inorganic dyes, ultraviolet absorbers, etc. for the purpose of improving the appearance, weather resistance, mechanical strength, and preventing oxidation of the conductive layer. May be added.

  The conductive pattern layer 4 has a shape suitable for receiving a desired radio wave, and is preferably a small and narrow width shape so as not to obstruct the driver's field of view.

  As a material used for the conductive pattern layer 4, for example, Al or Cu foil can be used if the pattern is formed by etching, and conductive paint is used if the pattern is formed by printing or a dispenser. be able to. The conductive paint may be mixed with a resin or the like in addition to the conductive particles and the dispersion solvent. It is also possible to use a paint mainly composed of a conductive polymer. Carbon, Ag, Au, Cu, Ni, etc. can be used as the conductive particles, and an alloy system or a mixed system of various conductive particles may be used. In order to have high conductivity, a conductive paint mainly composed of Ag is particularly desirable. In order to improve the electrical conductivity, the thicker the film, the better. However, it is set according to the balance between flexibility and mechanical strength. Usually, 3 to 30 μm is preferable, and 7 to 15 μm is more preferable. As a method for forming the conductive layer, the same formation method as that for the protective pattern layer can be used.

  The adhesive pattern layer 5 is not particularly limited as long as it is a material that adheres well to an adherend such as an automotive glass, and is based on an aqueous adhesive, a solvent-type adhesive, an emulsion-type adhesive, a latex-type adhesive, Adhesives such as mastic adhesives, multilayer adhesives, paste adhesives, foam adhesives, supported film adhesives, etc. can be selected. Active adhesive, heat seal adhesive, low temperature, medium temperature, high temperature curable adhesive, self-curing adhesive, contact adhesive, pressure sensitive adhesive, polymerization adhesive, solvent active adhesive, anaerobic adhesive A silicate adhesive can be used, and a thermosetting system, a thermoplastic system, an elastomer system, and a mixed system can be selected. These may be laminated in two or more layers. The film thickness is not particularly limited as long as the adhesive strength can be obtained, but is usually preferably 5 μm to 50 μm, and more preferably about 10 μm to 30 μm. For the purpose of improving the appearance, weather resistance, mechanical strength, and preventing oxidation of the conductive layer, inorganic pigments such as silicon oxide, titanium oxide, carbon black, organic / inorganic dyes, UV absorbers, etc. may be added. Absent. As a method for forming the adhesive pattern layer, the same formation method as that for the protective layer can be used.

  The release film 6 has a role of preventing sticking and dirt adhesion during storage due to the adhesiveness of the adhesive pattern layer 5, and further protecting the antenna configuration, and is a flexible film from the viewpoint of workability. It is desirable that the material is selected from the same materials as those of the substrate 1 having peelability. The peel strength between the release film 6 and the adhesive pattern layer 5 is preferably in the range of 0.1 to 100 gf / cm.

  The laminating process (laminating process) of the release film 6 can be performed using a heat laminator or a cold laminator, or a thermocompression bonding method.

  FIG. 3 is a schematic plan view showing a transfer type antenna according to another embodiment of the present invention, and FIG. 4 is an enlarged partial sectional view showing a part of an adhesive support pattern layer in the transfer type antenna of FIG. As shown in FIGS. 3 and 4, according to this other embodiment, in addition to the general configuration shown in FIGS. 1 and 2, the conductive pattern layer 4 on the transfer support layer 2 includes In addition to the adhesive pattern layer 5, the transfer type antenna further includes an adhesive support pattern layer 7 in a portion not provided. An adhesive support pattern layer 7 is provided on a substrate 1 having peelability via a transfer support layer 2 so that it can be transferred to a car glass surface or the like together with the antenna configuration.

  The adhesive support pattern layer 7 is transferred to the glass surface for the car together with the antenna structure at the same time as adjusting the peel strength of the release film 6 for protecting the adhesive surface, and is adhered to the glass surface for the car. And the effect of improving the peelability of the substrate 1 and the transfer support layer 2 can be obtained. As another effect, a slightly adhesive layer is used for the base material having peelability, and the peel strength between the base material 1 and the transfer support layer 2 is increased to such an extent that it can be re-worked if it is mistakenly applied. It is effective and can further facilitate the maintenance of the shape during construction and the adjustment of the position accuracy.

  The adhesive support pattern layer 7 has the same or similar configuration as the protective pattern layer and the adhesive pattern layer not including the conductive pattern layer 4, the same or similar configuration as the adhesive pattern layer alone, or the same or similar as the transfer support layer. However, it may be provided in another configuration having the above effects.

  As another configuration, as in Example 5 shown in FIG. 6 to be described later, an adhesive layer 72 having adhesiveness to an adherend surface such as a car glass surface and a primer intended to facilitate peeling and removal A two-layer configuration of layer 71 can be provided. The primer layer 71 is not particularly limited, but is preferably one that does not stretch or break due to the force at the time of peeling / removal. For example, ester resin, ether resin, acrylic resin, methacrylic resin, vinyl chloride resin, polycarbonate, polypropylene, polyimide, polyurethane, polyvinyl acetal, polyvinyl butyral, nylon resin, phenoxy resin, phenol resin, epoxy resin, silicone resin, etc. The seeds or a mixture of two or more can be used, and if necessary, they may be cured by heat, ultraviolet rays, electron beams, moisture, or the like. Further, these may be formed by laminating two or more layers.

  The thickness of the adhesive support pattern layer 7 is desirably substantially the same as the thickness of the antenna component, and is usually preferably 5 μm to 50 μm, more preferably about 10 μm to 30 μm.

  As a method for forming the adhesive support pattern portion, the same formation method as that for the protective pattern layer can be used.

  The formation position and area of the adhesive support pattern portion are not particularly limited, but it is effective to form the adhesion support pattern portion in the vicinity of the end face of the substrate or along the outline of the antenna configuration.

  The configuration of the present invention is not limited to these. For example, in the case of forming an antenna that receives two types of received radio waves, two different conductive pattern layers may be provided, or between the two conductive pattern layers. An insulating layer can also be provided. Furthermore, a barrier layer for preventing a change over time due to migration of a low molecular weight monomer or a liquid ultraviolet absorber, a layer for further imparting durability, etc. may be provided between other layers in contact with the conductive pattern layer. it can.

  Next, the transfer method of the transfer type antenna of the present invention will be described. According to the present invention, an antenna comprising a conductive pattern layer 4 that forms an antenna wiring sandwiched between a protective pattern layer 3 and an adhesive pattern layer 5 on a substrate 1 having peelability via a transfer support layer 2. The transfer type antenna provided with the structure is adhered to the surface of an adherend such as an automobile glass, the substrate 1 having the peelability is peeled off, and then the transfer support layer 2 is dissolved. A transfer method characterized by removing. After transferring the transfer support layer 2 onto the glass surface of the vehicle together with the antenna structure, the transfer support layer 2 can be easily washed off with an organic solvent, water, alcohol or a mixture of water and alcohol, and wiped off. It can be dissolved and removed.

  In the case of a transfer type antenna further provided with an adhesive support pattern layer 7 in a portion where the conductive pattern layer 4 is not provided on the transfer support layer 2, the adhesive pattern layer 5 and the adhesive support pattern layer 7 are provided. Is adhered to the surface of an adherend such as glass for automobiles, the peelable substrate 1 is peeled off, the transfer support layer 2 is dissolved and removed, and then the adhesive support pattern layer 7 is removed. There is a transfer method. The removal of the adhesive support pattern layer 7 can be performed by dissolving / removing in the same manner as the transfer support layer 2 and can be peeled / removed by adjusting the adhesive force with the adherend surface.

  According to the transfer method of the present invention, it is possible to prevent the antenna configuration from dropping or chipping when the transfer type antenna is installed, it is easy to maintain the shape and adjust the position accuracy, and only the fine antenna portion can be easily applied.

EXAMPLES Specific examples of the present invention will be described below. The present invention is not limited to these examples.

Example 1
FIG. 5 is an enlarged partial cross-sectional model view showing an antenna component of the transfer antenna according to the first embodiment. The base material 1 having peelability is adjusted to a dimensional stability of 0.1% or less by heat-treating a transparent PET film “Lumirror S10” (thickness: 23 μm, manufactured by Toray Industries, Inc.) at 150 ° C. for 30 minutes. Then, a release layer solution having the following composition was applied with a wire bar, and dried and cured at 120 ° C. for 5 minutes. The substrate 1 having peelability has a function as a protective film for a transfer antenna. Hereinafter, it is referred to as a protective film in the examples.
Release layer solution Silicone solution “KS-723A” (manufactured by Shin-Etsu Chemical Co., Ltd.) 10 parts by weight
"KS-723B" 10 parts by weight curing catalyst "CAT-PS3" 10 parts by weight MEK / toluene mixture (1/1) optional

The transfer support layer 2 was formed by coating a transfer support layer solution having the following composition on a protective film using a wire bar and drying it at 100 ° C. for 15 minutes to a film thickness of 1 μm.
Transfer support layer solution Acetal resin solution “ESREC KX-1” (manufactured by Sekisui Chemical Co., Ltd.) 50 parts by weight Water / IPA mixture (6/4) 50 parts by weight

The protective pattern layer 3 is formed using a protective layer ink having the following composition, using a silk printer to form a rectangular pattern having a width of 2 mm and a size of 70 mm × 130 mm, and a thickness of 15 μm. It was dried under the condition of 30 minutes.
Protective layer ink Phenoxy resin liquid “H304” (Dainippon Ink Chemical Co., Ltd.) 100 parts by weight Isocyanate curing agent “D201” 5 parts by weight Cyclohexanone 20 parts by weight Solvesso 150 20 parts by weight

  The conductive pattern layer 4 is made of a conductive paste “LS-415CM” (manufactured by Asahi Chemical Research Co., Ltd.) and silk so that the width is 0.5 mm and the thickness is 10 μm in accordance with the width center position of the protective pattern layer. It formed using the printing machine and it dried on 130 degreeC and the conditions for 30 minutes.

  In Example 1, a barrier layer 8 was provided on the conductive pattern layer 4 in order to prevent migration of low molecular components contained in the adhesive pattern layer 5 in contact with the conductive pattern layer 4. The barrier layer 8 was formed under the same conditions using a protective layer ink so as to overlap the protective pattern layer.

  Adhesive pattern layer 5 is a hot melt adhesive “AD-HM6” (manufactured by Jujo Chemical Co., Ltd.) having slight tackiness at room temperature, and is applied on the barrier layer so as to overlap with protective pattern layer 3 using a silk printing machine. Laminated and formed. It dried on 120 degreeC and the conditions for 5 minutes, and formed the 10-micrometer-thick adhesion pattern layer.

  After forming the antenna configuration on the protective film, the release film 6 was bonded onto the adhesive pattern layer 5 using a laminator. Using a PET film “Purex A31” (thickness 38 μm, manufactured by Teijin DuPont Films, Ltd.) subjected to a release treatment as the release film 6, the adhesive pattern layer 5 was pressure-bonded using a laminator, and then 90 mm × 150 mm The transfer type antenna was produced by cutting it into sizes.

Example 2
Using a transparent PET film “Lumirror S10” (thickness 75 μm, manufactured by Toray Industries, Inc.) as a protective film, as a transfer support layer, a transfer support layer solution having the following composition was coated on a substrate using a wire bar, It was dried at 100 ° C. for 5 minutes to form a film having a thickness of 1 μm, and a second transfer support layer was provided so that the transfer support layer liquid of Example 1 had a thickness of 1 μm. A transfer type antenna was manufactured in the same manner as in Example 1 except for the above.
Transfer support layer liquid Acetal resin “ESREC BX-1” (manufactured by Sekisui Chemical Co., Ltd.) 10 parts by weight MEK / toluene mixture (1/1) 90 parts by weight

Example 3
The same procedure as in Example 1 was used except that a transparent PET film (Lumoror S10) (thickness 75 μm, manufactured by Toray Industries, Inc.) was used as the protective film, and the transfer support layer solution having the following composition was used as the transfer support layer. A transfer antenna was prepared.
Transfer support layer solution Acetal resin solution “ESREC KX-1” (manufactured by Sekisui Chemical Co., Ltd.)
30 parts by weight Polyvinyl alcohol resin “GOHSENOL KL-05”
(Nippon Synthetic Chemical Industry Co., Ltd.) 3 parts by weight Water / IPA mixture (5/5) 60 parts by weight

Example 4
A transfer mold was used in the same manner as in Example 1 except that a chloroprene rubber adhesive “ThreeBond 1521” (manufactured by ThreeBond Co., Ltd.) for thermocompression bonding was used as the adhesive pattern layer and was laminated on the barrier layer using a dispenser system. An antenna was produced. However, the release film was not used because the adhesive pattern layer was an adhesive for thermocompression bonding.

Example 5
FIG. 6 is an enlarged partial cross-sectional model view showing the adhesive support pattern layer portion of the transfer type antenna of the fifth embodiment. In the transfer type antenna of Example 2, the protective layer ink of Example 1 is used so as to surround the outer periphery with an interval of 5 mm from the antenna configuration, and a rectangular pattern with a width of 5 mm is made to have a thickness of 15 μm. The first adhesive support pattern layer (primer layer) 71 was formed by using a silk printing machine and drying it at 100 ° C. for 30 minutes. Further, a thickness of the first adhesive support pattern layer 71 is overlapped in the same shape with a silk printer using a phenoxy resin “H-353” (manufactured by Dainippon Ink & Chemicals, Inc.) as an adhesive layer for thermocompression bonding. A second adhesive support pattern layer (adhesive layer) 72 was formed with a thickness of 15 μm. (See FIGS. 3 and 6) In this way, a transfer type antenna in which the transfer type antenna of Example 2 was further provided with adhesive support pattern layers 71 and 72 was produced.

Example 6
A transfer antenna was prepared in the same manner as in Example 3 except that the protective pattern layer and the barrier layer were formed using the protective layer ink having the following composition.
Protective layer ink Phenoxy resin liquid "EXA-192"
(Dainippon Ink Chemical Co., Ltd.) 50 parts by weight Silicon dioxide powder “Aerosil R912”
(Nippon Aerosil Co., Ltd.) 5 parts by weight Cyclohexanone 25 parts by weight Solvesso 150 25 parts by weight

Comparative Example 1
The configuration obtained by removing the transfer support layer from the configuration of the transfer type antenna of Example 1 was referred to as Comparative Example 1. Except for this, it was fabricated in the same manner as in Example 1.

Comparative Example 2
The release film “Purex A31” (thickness 38 μm, manufactured by Teijin DuPont Films Ltd.) used in the examples was used as a protective film, and as in Comparative Example 1, a protective film was formed without forming a transfer support layer. A protective pattern layer was formed directly on top of it.

  Next, the transfer method of the transfer type antenna of the present invention will be described. The transfer type antennas of the above examples and comparative examples were transferred onto a glass plate and pasted.

  In Examples 1 to 3, 6 and Comparative Examples 1 and 2, the release film of the transfer type antenna was peeled off, the adhesive pattern layer was brought into close contact with the glass plate, rubbed with a plastic squeegee and pressure-bonded. It peeled off and affixed.

  In Example 4, the release film was peeled off, the adhesive pattern layer was adhered on the glass plate, heated with an industrial dryer from the top of the protective film, then rubbed with a plastic squeegee and pressure-bonded. It peeled off and affixed.

  In Example 5 and Comparative Examples 1 and 2, after spraying water on the glass plate, the adhesive pattern layer was brought into close contact, and the protective film was rubbed with a plastic squeegee to extrude water between the glass plate and the protective film. After overheating with an industrial drier from the top of the film, rubbing with a plastic squeegee and press-bonding, the protective film was peeled off and pasted.

  The transfer type antennas of Examples 1 to 6 were applied to a glass plate, sprayed with various solutions, and wiped with a tissue paper moistened with the same solution to dissolve and remove the transfer support layer. At this time, Examples 1 and 4 used water / IPA (3/2) mixed solution, Examples 2 and 5 used water / IPA (2/3) mixed solution, and Examples 3 and 6 used water.

  In Example 5, the end portion of the adhesive support pattern layer affixed to the glass plate was further lifted with a nail or tweezers to be peeled and removed.

  Next, various special evaluations were performed on the transfer antennas of Examples and Comparative Examples.

  Table 1 shown in FIG. 7 shows an outline of the configuration of the transfer type antennas of the examples and comparative examples of the present invention.

  Table 2 shown in FIG. 8 shows the peel strength at each interface of the transfer antennas of the examples and comparative examples of the present invention and the adhesive strength when the adherend is a glass plate. The measurement was performed in accordance with JIS K 6854-2 “Peeling adhesion strength test method 180 degree peeling” by the following method. At this time, the width of the test piece was 20 mm, and the peel strength was obtained by converting the width to 25 mm after the measurement.

  A test sample was prepared by attaching cello tape “CT-24” (manufactured by Nichiban Co., Ltd.) to the surface of the transfer support layer with the transfer support layer formed on the entire surface of the protective film used in each Example and Comparative Example, and cutting it to a width of 20 mm. Then, the protective film surface was fixed to the sample stage with double-sided adhesive tape, and the measurement was performed by peeling off the transfer support layer together with the cello tape, and the peel strength between the protective film and the transfer support layer was measured.

  Similarly, using a test sample in which a protective layer was formed on the entire surface of the protective film, the peel strength between the protective film and the protective pattern layer was measured.

  A test sample was prepared by laminating a release film in a state where an adhesive layer was formed on the entire surface of a transparent PET film (a protective film not treated with a release agent) and cut to a width of 20 mm. Then, the measurement was performed by peeling off the release film, and the peel strengths of the release film, the adhesive pattern layer, and the adhesive support pattern layer were measured.

  A test sample was prepared by laminating a release film in a state where an adhesive layer was formed on the entire surface of a transparent PET film (a protective film not treated with a release agent), and cut to a width of 20 mm, and the adhesive layer surface was attached to a glass plate. The measurement was performed by peeling the adhesive layer together, and the adhesive strength between the glass plate, the adhesive pattern layer, and the adhesive support pattern layer was measured.

  Table 3 shown in FIG. 9 shows the results of evaluating the manufacturing suitability and construction suitability of the transfer type antennas of the examples and comparative examples of the present invention.

  In all the examples, since the transfer support layer was formed, there was no dropout or chipping of the fine antenna configuration that occurred during manufacturing and construction, and good squeegee resistance was obtained. This is because a fine pattern such as a protective pattern layer can be printed on a transfer support layer excellent in adhesion and printability, and the transfer support layer improves durability during construction. On the other hand, in the comparative example, when a fine pattern is printed on the substrate surface having peelability, the repellency of the printing ink and the printed shape are distorted, and the antenna configuration is dropped due to the shift of the protective film or the release film. Was seen.

  In addition, there was no peeling failure during construction. As seen in Examples 3 and 6, even if the peel strength of the protective film is reduced, the transfer support layer can be formed in a large area. Therefore, the peel strength of the release film in contact with the fine pattern adhesive pattern layer is high. This is because the release film can be easily peeled off even if it is large, and the protective film can be peeled off lightly after being adhered to the glass plate.

  When the adhesive layer is applied with water, the adhesiveness decreases due to the influence of water interposed between the adhesive surface and the glass surface. In such a case, good workability can be obtained by using an adhesive layer having thermocompression bonding as in Example 4. In addition, as in Example 5, the adhesive support pattern layer can have the same action, and the workability can be stabilized.

  According to the transfer type antenna and transfer method of the present invention, the applicability of the transfer type antenna can be greatly improved, the antenna configuration can be prevented from dropping or chipping during construction, and the shape can be easily maintained and the position accuracy can be easily adjusted. Only the fine antenna part can be easily constructed. Accordingly, it is possible to provide a transfer type antenna that does not have a support as compared with a conventional film antenna and can be designed with a narrow wiring antenna. The present invention can be used as a mounting method for a green sheet or a micro member used in a manufacturing process related to an electronic member by replacing the antenna configuration with another electronic member in addition to the transfer antenna for a vehicle.

It is a plane model figure which shows the general structural example of the transcription | transfer type antenna of this invention. FIG. 2 is an enlarged partial cross-sectional view showing an antenna component of the transfer type antenna of FIG. 1. It is a plane model figure which shows the transcription | transfer type antenna by another embodiment of this invention. FIG. 4 is an enlarged partial sectional view showing a part of an adhesive support pattern layer in the transfer type antenna of FIG. 3. It is an expanded partial sectional view which shows the antenna component part of the transcription | transfer type antenna of Example 1 of this invention. It is an expanded partial sectional view which shows the adhesion | attachment support pattern layer part of the transcription | transfer type antenna of Example 5 of this invention. It is a figure which shows Table 1 which shows the structure outline | summary of each Example and comparative example of this invention collectively. It is a figure which shows Table 2 which shows collectively the measurement result of the peeling strength of each Example and comparative example of this invention, and adhesive strength. It is a figure which shows Table 3 which shows collectively the manufacturing aptitude of each Example and comparative example of this invention, and construction aptitude evaluation result.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Protective film 2 Transfer support layer 3 Protective pattern layer 4 Conductive pattern layer 5 Adhesive pattern layer 6 Release film 7 Adhesive support pattern layer 8 Barrier layer 71 Primer layer 72 Adhesive layer

Claims (10)

  A transfer mold comprising: a transfer support layer formed on a substrate having releasability; and a conductive pattern layer forming an antenna wiring sandwiched between a protective pattern layer and an adhesive pattern layer on the transfer support layer. antenna.   The transfer antenna according to claim 1, wherein the adhesive pattern layer sandwiches the conductive pattern layer between the protective pattern layer via a barrier layer.   The transfer antenna according to claim 1 or 2, wherein the transfer support layer can be dissolved and removed with water, alcohol, or a mixture of water and alcohol.   4. The transfer type antenna according to claim 1, wherein an adhesive support pattern layer is formed on a portion of the transfer support layer where the conductive pattern layer is not provided.   The transfer type antenna according to claim 4, wherein the adhesive support pattern layer includes a primer layer and an adhesive layer.   The transfer antenna according to claim 4 or 5, wherein the adhesive support pattern layer can be dissolved and removed with water, alcohol, or a mixture of water and alcohol.   The transfer type antenna according to claim 4 or 5, wherein the adhesive support pattern layer can be peeled and removed by adjusting an adhesive force with an adherend surface of the antenna.   The transfer antenna according to any one of claims 1 to 7, wherein the transfer support layer is formed with a larger area than the conductive pattern layer with respect to the base material.   A transfer support layer is formed on a substrate having peelability, and a transfer type antenna provided with a conductive pattern layer on which an antenna wiring is sandwiched between a protective pattern layer and an adhesive pattern layer is covered. In the transfer method for imparting an antenna to the attachment surface, the adhesive pattern layer is adhered to the surface of the attachment surface, the substrate having peelability is peeled off, and the transfer support layer is dissolved and removed. Transfer method.   A transfer support layer is formed on a substrate having peelability, and a conductive pattern layer is formed on the transfer support layer to form an antenna wiring sandwiched between a protective pattern layer and an adhesive pattern layer, and further on the transfer support layer In the transfer method for applying an antenna to an adherend surface using a transfer type antenna in which an adhesive support pattern layer is formed on a portion where the conductive pattern layer is not provided, the adhesive pattern layer and the adhesive support pattern layer Is adhered to the surface of the adherend surface, the peelable substrate is removed, the transfer support layer is dissolved and removed, and then the adhesive support pattern layer is removed.

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