JP2012116219A - Metal tone decorative sheet and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a metal tone decorative sheet capable of preventing the occurrence of operation failures of a capacitance sensor and capable of increasing production efficiency during small amount production, and method for manufacturing the same.SOLUTION: The metal tone decorative sheet 30 is structured by sequentially stacking a base resin film 31, a primer layer 32, a metal layer 33, a hot melt adhesive layer 35, and a transparent resin film 36. The metal layer 33 has a metal dispersed structure where a plurality of metals 33A are separately dispersed. Thus, the entire metal layer 33 is not one continuous conductor. Even if the outer surface of a vehicle door handle 10 is covered with the metal tone decorative sheet 30, the occurrence of the operation failures of a capacitance sensor 15 is prevented. Furthermore, since the hot melt adhesive is used, in the case of small amount production, a time for adhesion is shortened compared with the case of using a liquid adhesive, and production efficiency is improved.

Description

  The present invention relates to a metallic decorative sheet having radio wave transmissivity that is molded according to the outer shape of a resin molded product for a vehicle that can incorporate a detection electrode of a capacitance sensor, and a method for manufacturing the same.

  As an example of the above-described resin molded product for a vehicle, a door handle incorporating a detection electrode of a capacitance sensor is known (see, for example, Patent Document 1). In this door handle, the touch of the passenger is detected by a capacitance sensor, and the door is unlocked. In addition, among such door handles, those whose outer surface is decorated with a metallic decorative sheet are increasing. And the conventional metal tone decoration sheet vapor-deposits a metal on the surface of PET film, forms a metal vapor deposition layer, and uses a liquid adhesive so that the PET film may be pinched | interposed with a pair of resin film It was mass-produced by the laminating method.

JP 2003-221946 A ([0002])

  However, when the outer surface of the resin molded product for vehicles is covered with a conventional metallic decorative sheet, the capacitance sensor may not operate normally. In addition, when producing a small amount of a metallic decorative sheet specially for decoration of a small resin molded article for a vehicle (for example, 1 lot: 1 m or less), in the above-described method of manufacturing a metallic decorative sheet, an adhesive is used. The waiting time until drying has caused a decrease in production efficiency. As another problem, when the outer shape of the resin molded product for a vehicle is a shape having a large uneven step (deep drawing), the metallic decorative sheet may cause delamination.

  The first object of the present invention made in view of the above circumstances is a metallic decorative sheet capable of preventing the occurrence of malfunction of the capacitance sensor and improving the production efficiency at the time of small-volume production, and a method for producing the same. Is to provide. The second object of the present invention is to provide a metallic decorative sheet capable of preventing delamination when the outer surface of a deep-drawn vehicle resin molded product is covered, and a method for producing the same. .

  In order to achieve the above object, a method for producing a metallic decorative sheet (30) according to the invention of claim 1 is a resin molding for vehicles that can incorporate a detection electrode (15D) of a capacitance sensor (15). A transparent resin film (36) formed for the outer surface shape of the product (10), and the metal layer (33) covering the outside of the metal layer (33) and making the metal layer (33) visible, and for vehicles A method for producing a metallic decorative sheet (30) sandwiched between a base resin film (31) fixed to a resin molded article (10), comprising a transparent resin film (36) and a base resin film ( 31) of the metallic decorative sheet (30) in which the other resin film (36) is bonded to the metal-coated resin film (37) formed by covering one of the resin films (31) with the metal layer (33). In the manufacturing method, the metal layer 33) is a metal body scattered structure in which a plurality of metal bodies (33A) are scattered in a separated state, and the metal-coated resin film (37) and the other resin film (36) are heated using a hot melt adhesive. It is characterized by where it is laminated.

  Invention of Claim 2 makes the average thickness of a metal layer (33) 10-70 nm in the manufacturing method of the metal decoration sheet (30) of Claim 1, and makes the metal layer (33) thickness. It is characterized in that the average particle diameter of the plurality of metal bodies (33A) when viewed from the direction is 30 to 150 nm and the average gap between the metal bodies (33A) is 5 to 30 nm.

  The invention of claim 3 is characterized in that, in the method for producing a metallic decorative sheet (30) according to claim 2, the metal layer (33) is a metal deposition layer of indium or tin.

  Invention of Claim 4 is a primer layer (35) which consists of an acrylic resin or a urethane-type resin in the single side | surface of one resin film (31) in the manufacturing method of the metallic decoration sheet (30) of Claim 3. And a metal-coated resin film (37) is obtained by depositing metal on the primer layer (35).

  Invention of Claim 5 is a manufacturing method of the metallic decoration sheet | seat (30) of Claim 3, A metal covering resin film (37) has a metal vapor deposition layer (33) on one resin film (31). It is characterized by being directly laminated.

  The invention of claim 6 is the method for producing a metallic decorative sheet (30) according to claim 4 or 5, wherein the transparent resin film (36) is an acrylic resin film and the base resin film (31) is an ABS resin. It is characterized by the film.

  The invention of claim 7 is the method for producing a metallic decorative film (30) according to any one of claims 1 to 6, wherein the hot melt adhesive is made of a urethane resin, and the hot melt adhesive The adhesive is applied to either one of the metal-coated resin film (37) and the other resin film to a thickness of 20 μm or less.

  The manufacturing method of the metallic decoration sheet | seat (30) based on invention of Claim 8 is matched with the outer surface shape of the resin molded product for vehicles (10) which can incorporate the detection electrode (15D) of a capacitance sensor (15). The metal layer (33) is fixed to the transparent resin film (36) that covers the outside of the metal layer (33) and makes the metal layer (33) visible and the vehicle resin molded product (10). A metallic decorative sheet (30) sandwiched between the transparent resin film (36) and the basic resin film (31). It is laminated directly on one of the resin films (31) or via a primer layer (35) made of acrylic resin or urethane resin, and a plurality of metal bodies (33A) are scattered in a separated state. Metal structure , Having characterized in that the hot-melt adhesive layer (35) is provided between the metal layer (33) and the other resin film (36).

  The invention of claim 9 is the metal decorative sheet (30) according to claim 8, wherein the average thickness of the metal layer (33) is 10 to 70 nm, and the plurality of metal bodies (33A) are made of metal. When the layer (33A) is viewed from the thickness direction, the average particle diameter is 30 to 150 nm, and the average gap between the metal bodies (33A) is 5 to 30 nm.

  The invention of claim 10 is characterized in that, in the metal decorative sheet (30) of claim 9, the metal layer (33) is a metal vapor-deposited layer of indium or tin.

  The invention of claim 11 is the metallic decorative sheet (30) according to any one of claims 8 to 10, wherein the transparent resin film (36) is an acrylic resin film, and is a basic resin. The film (31) is characterized by being an ABS resin film.

  The invention of claim 12 is the metallic decorative sheet (30) according to any one of claims 8 to 11, wherein the hot melt adhesive layer (35) has an average thickness of 20 μm or less. It is characterized by being made of urethane resin.

[Inventions of Claims 1 and 8]
The metal decorative sheet (30) according to the inventions of claims 1 and 8 is a metal body in which the metal layer (33) is composed of a plurality of metal bodies (33A) and the plurality of metal bodies (33A) are separated from each other. Due to the scattered structure, the entire metal layer (33) is not a single continuous conductor. Thereby, even if the outer surface of the resin molded product for vehicles (10) is covered with this metallic decorative sheet (30), the occurrence of malfunction of the capacitance sensor (15) is prevented. In addition, since a hot melt adhesive is used in the present invention, the time required for the bonding process can be shortened in the case of small-scale production compared to the case of using a liquid adhesive, and the production efficiency is improved. Can be achieved.

[Inventions of Claims 2, 3, 9, 10]
As in the inventions of claims 2 and 9, the average thickness of the metal layer (33) is 10 to 70 nm, the average particle diameter of the plurality of metal bodies (33A) is 30 to 150 nm, and the metal bodies (33A) are between each other. If the average gap is 5 to 30 nm, the entire metal layer (33) can be seen as one continuous metal part. In addition, as described above, the metal layer (33) having an average thickness of 10 to 70 nm, an average particle diameter of the plurality of metal bodies (33A) of 30 to 150 nm, and an average gap of 5 to 30 nm is a metal of indium or tin. It can be easily formed by vapor deposition (inventions of claims 3 and 10).

[Inventions of Claims 4 and 5]
The metal-coated resin film (37) may have a structure in which a metal is vapor-deposited on the primer layer (35) provided on one resin film (31), as in the invention of claim 4. Like invention, the structure which laminated | stacked the metal vapor deposition layer (33) directly on one resin film (31) may be sufficient. In addition, according to the structure of invention of Claim 4, between one resin film (31) and a metal layer (33) can be fixed firmly.

[Invention of claims 6 and 11]
If the transparent resin film (36) is an acrylic resin film and the base resin film (31) is an ABS resin film as in claims 6 and 11, the transparent resin at the molding temperature of the metallic decorative sheet (30). The difference in thermal shrinkage between the film (36) and the base resin film (31) can be reduced. Thereby, the delamination of the metallic decorative sheet (30) after molding can be reduced, and the deep-drawn vehicle resin molded product can be covered.

[Inventions of Claims 7 and 12]
The hot melt adhesive layer (35) preferably has an average thickness of 20 μm or less. If the average thickness is larger than 20 μm, it takes time until the hot melt adhesive layer (35) is melted at the time of thermal lamination. The hot melt adhesive is preferably a urethane resin.

The perspective view of the door handle for vehicles concerning one embodiment of the present invention. Side view of vehicle door handle Side sectional view of a vehicle door handle The perspective view which looked at the handle body from the back side AA cross section of the handle body Perspective view of metal-like sheet molding Sectional view of metal-tone sheet molding and injection mold Sectional view of metal-like sheet molded product inserted in injection mold Side sectional view of metallic decorative sheet Photograph of plane of metal layer in metallic decoration sheet Photograph of the side cross section of the metal layer in the metallic decorative sheet Side view of metal-coated resin film Side cross-sectional view of metal-coated resin film and transparent resin film before thermal lamination Sectional view of metal-like sheet molding and sheet molding die

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 shows a vehicle door handle 10 (hereinafter simply referred to as “door handle 10”) as a “vehicle resin molded product” according to the present invention. The door handle 10 has an arch structure extending in the horizontal direction, and has a structure in which a pair of fixed legs 12 </ b> A and 12 </ b> B protrude from the both ends in the horizontal direction toward the vehicle door 40. Then, the pair of fixed legs 12A and 12B are fixed in a state of being inserted into through holes formed in the door panel 40P of the vehicle door 40 (see FIG. 2). Further, the middle portion in the longitudinal direction of the door handle 10 is a grip portion 10G which is separated from the vehicle door 40 and can be gripped by a person.

  As shown in FIG. 3, the door handle 10 includes a handle body 11 and a back cover 14. The handle body 11 is provided with an accommodation recess 17 (see FIG. 4) that is open on the vehicle door 40 side, and the opening of the accommodation recess 17 is closed by the back cover 14. A capacitance sensor 15 is built in an internal space formed between the handle body 11 and the back cover 14. Further, the door handle 10 appears to be composed entirely of the handle main body 11 in appearance (see FIG. 2).

  The capacitance sensor 15 includes, for example, a strip-shaped detection electrode 15D extending along the longitudinal direction of the door handle 10 and a capacitance detection circuit capable of detecting a change in the capacitance of the capacitance sensor 15. 15C and packaged with resin. In addition, the capacitance sensor 15 is disposed at an intermediate portion in the longitudinal direction of the door handle 10, and is disposed so as to be unevenly distributed on the vehicle door 40 side inside the door handle 10. When a human finger comes into contact with the surface of the door handle 10 facing the vehicle door 40, the capacitance of the detection electrode 15D changes beyond a predetermined reference value. The change is detected by the capacitance detection circuit 15 </ b> C, and human contact with the door handle 10 is detected.

  When the capacitance sensor 15 detects human contact with the door handle 10, for example, the signal processing device 16 provided in the vehicle body wirelessly checks whether or not a predetermined RFID exists, and the RFID is present nearby. In this case, the vehicle door 40 is unlocked, and the locking of the vehicle door 40 by a latch mechanism (not shown) is also released. As a result, the passenger can get on.

  As shown in FIG. 5, the handle main body 11 is covered with a metal-finished sheet molded product 20 (see FIG. 6) having a shape matching the outer surface of the handle main body 11. In detail, the metal-tone sheet molded product 20 has an overall shape excluding a part of the exposed side of the door handle 10 on the back side of the arch.

  Next, a method for manufacturing the door handle 10 will be described. For this purpose, first, the handle body 11 is molded using the injection mold 64 shown in FIG. The injection mold 64 is composed of male and female molds 65 and 66, and the female mold 65 is formed with a recess 67 that is recessed corresponding to the shape of the metal-tone sheet molded product 20. The male mold 66 is formed with a hill portion 68 bulging toward the recess 67, and a resin injection path 69 is formed so as to open to a part of the hill portion 68. The male mold 66 includes slide molds 80 and 80 that are movable in a direction orthogonal to the mold opening / closing direction of the male and female molds 65 and 66.

  In order to mold the handle main body 11 using the injection mold 64, first, the ceiling portion 20T (see FIG. 7) of the metallic sheet molded product 20 is fitted into the recess 67. Then, the male mold 65 is closed in a state where the slide molds 80, 80 are separated from the hill portion 68, and the hill portion 68 of the male mold 66 is rushed into the metal tone forming sheet 10. Next, the slide molds 80 and 80 are closed, and a molding space is formed between the metallic tone sheet molded product 20 and the hill 68. Next, the molding space is filled with a molten resin (for example, a PC-PBT alloy molten resin) via an injection path 69 (see FIG. 8). When the injection mold 64 is cooled and the molten resin is solidified, the slide molds 80 and 80 and the male and female molds 65 and 66 are opened. Thereby, the molding process of the handle body 11 is completed. Although not shown, the injection mold 64 is provided with a plurality of slide molds in addition to the slide molds 80 and 80, and the fixed legs 12A and 12B (see FIG. 4) are molded by the slide molds.

  Next, the electrostatic capacity sensor 15 is accommodated in the accommodating recess 17 of the handle body 11, and the separately manufactured back cover 14 is screwed to the handle body 11 to close the accommodating recess 17. As a result, the capacitance sensor 15 is built in the door handle 10, and the exposed surface of the door handle 10 is decorated with a metallic tone by the metallic tone sheet molding 20.

  By the way, the metal tone sheet molded product 20 is obtained by molding the metal tone decorating sheet 30 shown in FIG. The metal decorative sheet 30 has an overall thickness of, for example, 340 μm, and includes a basic resin film 31, a primer layer 32, a metal layer 33, a hot melt adhesive layer 35, and a transparent resin film 36. It is the structure which laminated | stacked in order.

  The basic resin film 31 is, for example, an ABS resin (acrylonitrile-butadiene-styrene resin) film, and has a thickness of, for example, 250 μm. For example, a primer layer 32 having a thickness of 5 μm is laminated on one surface of the basic resin film 31. The primer layer 32 is made of an acrylic resin or a urethane resin.

  The metal layer 33 is formed by depositing indium on the surface of the primer layer 32 opposite to the basic resin film 31 by using a known physical vapor deposition method such as a sputtering method, an electron beam vapor deposition method or an ion plating method. Has been. As shown in the photograph of FIG. 10, the metal layer 33 has a metal body scattered structure in which a plurality of metal bodies 33A are scattered in a state of being separated from each other with a gap 33B. Specifically, the metal layer 33 has an average thickness of 60 nm (see FIG. 11), an average particle diameter of a plurality of metal bodies is 30 to 150 nm, and an average gap between the metal bodies is 5 to 30 nm. Thereby, the whole metal layer 33 can be shown as one continuous metal part.

  A hot melt adhesive layer 35 having an average thickness of, for example, 10 μm is formed on the surface of the metal layer 33 opposite to the primer layer 32. The hot melt adhesive layer 35 is made of a urethane resin and has a melting start temperature of 110 to 120 ° C. The transparent resin film 36 made of acrylic resin having a thickness of 75 μm is in close contact with the hot melt adhesive layer 35. Thereby, it has a laminated structure in which the metal layer 33 is sandwiched between the basic resin film 31 and the transparent resin film 36.

  This metallic decorative sheet 30 is manufactured as follows. First, the primer layer 32 is formed by applying an acrylic resin or a urethane resin to one surface of the basic resin film 31. Then, indium is deposited on the primer layer 32 to form the metal layer 33. As a result, a metal-coated resin film 37 in which the base resin film 31 is covered with the metal layer 33 is obtained (see FIG. 12).

  Next, the hot melt adhesive is applied to the transparent resin film 36, and the hot melt adhesive layer 35 is laminated on the transparent resin film 36 (see FIG. 13). Note that gravure printing, screen printing, or the like is used as a method of applying the hot melt adhesive.

  Next, the transparent resin film 36 and the metal-coated resin film 37 are cut into a square shape having a side of about 30 cm, and are stacked so that the hot melt adhesive layer 36 is disposed between the two, and a known thermal laminate molding is performed. Paste using a machine. Specifically, the set temperature of the heat laminating machine is 120 degrees, the linear pressure is 50 N / cm, the film feed rate is 0.5 m / min, and the two resin films that have been stacked are applied to the heat laminating machine twice. Let it pass. Thereby, the transparent resin film 36 is laminated | stacked on the metal covering resin film 37, and the metal decoration sheet 30 (refer FIG. 9) is obtained.

  Here, when the manufacturing method of the metallic decorative sheet 30 in this embodiment is compared with the conventional manufacturing method of a metallic decorative sheet (see paragraph [0002] of the present specification), When the adhesive is cooled and solidified, the metal-coated resin film 37 and the transparent resin film 36 are bonded to each other. Therefore, compared to the case of waiting until the liquid adhesive is dried as in the conventional manufacturing method, The time required for solidification is shortened.

  Further, in the conventional manufacturing method, in order to form the metal layer 33 on the PET film, the PET film and the base resin film 31 are laminated, and then the laminate molded product and the transparent resin film 36 are laminated. Had to be done twice. On the other hand, in this embodiment, since the PET film is eliminated, only one lamination of the metal-coated resin film 37 and the transparent resin film 36 is required, and the manufacturing process can be simplified.

  Next, the manufacturing method of the metal tone sheet molded article 20 using the metal tone decorating sheet 30 is demonstrated. First, the metallic decorative sheet 30 is gripped by a clamp (not shown), and both surfaces of the metallic decorative sheet 30 are heated to, for example, 150 ° C. and softened with a heater (not shown). Then, as shown in FIG. 14, the metallic decorative sheet 30 is set in a sheet molding die 50 having a molding protrusion 51 </ b> T corresponding to the inner shape of the metallic tone sheet molded product 20.

  The sheet molding die 50 includes a male mold 51 and a female mold 52, and the molding protrusion of the male mold 51 is formed on the base resin film 31 (see FIG. 9) side of the metallic decorative sheet 30. Address to 51T. Next, the air between the metallic decorative sheet 30 and the male mold 51 is sucked through the suction holes 51A, and at the same time, the metallic decorative sheet 30 is compressed with compressed air sent out from the vent holes 52A of the female mold 52. Is pressed against the male mold 51 side, and the metallic decorative sheet 30 is brought into close contact with the upper surface of the male mold 51. And if the metal decoration sheet 30 hardens | cures to the extent which can maintain a shape, the metal decoration sheet 30 will be removed from the metal mold | die 50 for sheet forming. Here, the side surface of the molding protrusion 51 has a so-called undercut shape in which the upper part protrudes laterally from the lower end portion corresponding to the inner shape of the metal tone sheet molded product 20. May be separated from the male mold 51 while elastically deforming. Thereby, the metallic decorating sheet 30 is shape | molded by the shape which raised the dome part 30D corresponding to the metallic tone sheet molded product 20 from the flat part 30M. Next, for example, the metal tone sheet molded product 20 is obtained by separating the dome portion 30D from the entire metal tone decorating sheet 30 using a laser gun.

  Next, the effect of the metallic decoration sheet 30 according to this embodiment will be described. According to the metallic decorative sheet 30 of the present embodiment, the metal layer 33 is composed of a plurality of metal bodies 33A, and the metal bodies 33A are separated from each other. The whole is not a single continuous conductor. Thereby, even if the outer surface of the door handle 10 is covered with the metallic decorative sheet 30, the malfunction of the capacitance sensor 15 is prevented. Moreover, since the average gap | interval between metal bodies 33A which comprise the metal layer 33 is 5-30 nm, the metal layer 33 whole can be shown to one continuous metal component.

  Moreover, in this embodiment, since the hot melt adhesive was used, when performing a small amount production of the metallic decoration sheet 30, the time which an adhesion process requires compared with the case where a liquid adhesive is used is shortened. Production efficiency can be improved. Furthermore, since the transparent resin film 36 is an acrylic resin film and the basic resin film 31 is an ABS resin film, the difference in thermal shrinkage between the transparent resin film 36 and the basic resin film 31 at the molding temperature of the metallic decorative sheet 30. Can be reduced. Thereby, delamination of the metallic decorative sheet 30 after molding can be reduced, and the outer surface of the deep-drawn door handle 10 can be covered.

[Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following can be made without departing from the scope of the invention. It can be changed and implemented.

(1) Although the primer layer 32 was provided in the metallic decoration sheet 30 of the said embodiment, you may make it the structure which does not provide the primer layer 32. FIG. In addition, according to the structure of the said embodiment, between the metal layer 33 and the basic resin film 31 can be fixed firmly.

(2) In the embodiment, the transparent resin film 35 is laminated on the metal-coated resin film 37 obtained by laminating the metal layer 33 on the metal resin film 31, but the metal-coated resin obtained by laminating the metal layer 33 on the transparent resin film 35. The basic resin film 31 may be laminated on the film.

(3) In the above-described embodiment, the hot melt adhesive is applied only to the transparent resin film 35, but it may be applied only to the metal-coated resin film 37, or the transparent resin film 35 and the metal-coated resin film 37 may be applied. It may be applied to both.

DESCRIPTION OF SYMBOLS 10 Vehicle door handle 15 Capacitance sensor 15D Detection electrode 20 Metal-tone sheet molding 30 Metal-tone decoration sheet 31 Base resin film 32 Primer layer 33 Metal layer 33A Metal body 35 Hot melt adhesive layer 36 Transparent resin film 37 Metal Coating resin film

Claims (12)

The metal layer (33) is formed on the outer side of the metal layer (33), and is molded in accordance with the outer shape of the resin molded product (10) for a vehicle that can incorporate the detection electrode (15D) of the capacitance sensor (15). Metal adjustment that is sandwiched between a transparent resin film (36) that covers and makes the metal layer (33) visible and a base resin film (31) that is fixed to the vehicle resin molded product (10). It is a manufacturing method of a decoration sheet (30),
Metal that bonds the other resin film to the metal-coated resin film (37) formed by covering one of the transparent resin film (36) and the basic resin film (31) with the metal layer (33). In the production method of the decorative sheet (30),
The metal layer (33) has a metal body scattered structure in which a plurality of metal bodies (33A) are scattered in a separated state,
A method for producing a metallic decorative sheet (30), wherein the metal-coated resin film (37) and the other resin film are thermally laminated using a hot melt adhesive.   The average thickness of the metal layer (30) is 10 to 70 nm, the average particle size of the plurality of metal bodies (33A) when the metal layer (30) is viewed from the thickness direction is 30 to 150 nm, The method for producing a metallic decorative sheet (30) according to claim 1, wherein an average gap between the metal bodies (33A) is 5 to 30 nm.   The said metal layer (33) is a metal vapor deposition layer of indium or tin, The manufacturing method of the metal tone decoration sheet (30) of Claim 2 characterized by the above-mentioned.   A primer layer (35) made of an acrylic resin or a urethane resin is provided on one surface of the one resin film (31), and a metal is vapor-deposited on the primer layer (35) to thereby form the metal-coated resin film (37). The manufacturing method of the metal-tone decoration sheet (30) of Claim 3 characterized by the above-mentioned.   The metal-coated decorative sheet (30) according to claim 3, wherein the metal-coated resin film (37) is formed by directly laminating the metal vapor-deposited layer (33) on the one resin film (31). ) Manufacturing method.   The method for producing a metallic decorative film according to claim 4 or 5, wherein the transparent resin film (36) is an acrylic resin film, and the basic resin film (31) is an ABS resin film.   The hot melt adhesive is made of urethane resin, and the hot melt adhesive is applied to either the metal-coated resin film (37) or the other resin film to a thickness of 20 μm or less. The manufacturing method of the metallic decoration sheet | seat (30) of any one of Claim 1 thru | or 6 to do. The metal layer (33) is formed on the outer side of the metal layer (33), and is molded in accordance with the outer shape of the resin molded product (10) for a vehicle that can incorporate the detection electrode (15D) of the capacitance sensor (15). Metal adjustment that is sandwiched between a transparent resin film (36) that covers and makes the metal layer (33) visible and a base resin film (31) that is fixed to the vehicle resin molded product (10). A decorative sheet (30),
The metal layer (33) is formed directly on one of the transparent resin film (36) and the basic resin film (31), or a primer layer (35 made of acrylic resin or urethane resin). ), And a plurality of metal bodies (33A) are scattered in a state of being separated from each other,
A metallic decorative sheet (30), wherein a hot melt adhesive layer (35) is provided between the metal layer (33) and the other resin film.   The metal layer (33) has an average thickness of 10 to 70 nm, and the plurality of metal bodies (33A) have an average particle size of 30 to 150 nm when the metal layer (33) is viewed from the thickness direction. The metal decorative sheet (30) according to claim 8, wherein an average gap between the metal bodies (33A) is 5 to 30 nm.   The metal decoration sheet (30) according to claim 9, wherein the metal layer (33) is a metal vapor deposition layer of indium or tin.   The said transparent resin film (36) is an acrylic resin film, Comprising: The said basic resin film (31) is an ABS resin film, The claim in any one of Claims 8 thru | or 10 characterized by the above-mentioned. Metallic decorative sheet (30).   The metal decoration according to any one of claims 8 to 11, wherein the hot melt adhesive layer (35) has an average thickness of 20 µm or less and is made of a urethane resin. Sheet (30).