JP2007326264A - Metallic tone decorative molded object - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a metallic tone decorative molded object which has a metallic tone decoration with a feeling of unevenness mingled with a non-metallic tone decoration without a feeling of unevenness. <P>SOLUTION: This metallic tone decorative molded object 11 comprises a non-metallic tone decorative part consisting of a non-metallic colored layer 16 laminated on part of an uneven pattern 13b formed on a transparent resin 13 and a metallic tone decorative part consisting of a metallic thin film layer 14 laminated on the other region of the uneven pattern 13b. The unevenness height of the transparent resin 13 which forms the uneven pattern 13b is 0.1 to 5.0 μm and the layer thickness of the metallic thin film layer 14 formed by a physical vapor deposition process, is 10 to 35 nm. Consequently, it is possible to make the uneven pattern 13b visually recognizable merely by forming the metallic thin film layer 14 directly along the unevenness of the uneven pattern 13b. On the other hand, the visual recognition of the uneven pattern 13b is made impossible only by forming the non-metallic colored layer 16 directly along the unevenness. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a metallic decorative molded body used for electrical equipment, AV equipment, mobile communication terminals and the like.

  A resin molded body decorated in a metallic style is widely used as a light and inexpensive material instead of a metal material. Such resin-made metal-like decorative molded bodies are formed by plating a surface of a resin-molded body or applying a metallic ink or a metallic paint to form a metal thin film layer on the surface.

For example, Japanese Patent No. 3204951 (Patent Document 1) describes a key sheet for a push button switch in which a metal thin film layer is formed on the back side of a film and decorated in a metallic style. Japanese Patent Application Laid-Open No. 2003-103709 (Patent Document 2) provides a molded resin with a glitter resin layer containing a glitter pigment, decorates it with a metallic tone, and embosses the glitter resin layer. A decorative molded product having excellent design properties that gives a metallic concavo-convex pattern is described.
Japanese Patent No. 3204951 JP 2003-103709 A

  However, with the technique described in Patent Document 1, although it is decorated in a metallic style, it does not make the sense of unevenness visible. That is, it is difficult to perform deposition on the surface of a substrate that is uneven and is not smooth, so it is difficult to form a pattern that has a feeling of unevenness and is decorated in a metallic style, and moreover, a part that has a feeling of unevenness and a part that does not have a feeling of unevenness It was more difficult to form a mixed design.

  In addition, when the technique described in Patent Document 2 is used, it is possible to give a metal-like unevenness by applying a metallic ink or a metallic paint, but even the display portion representing characters and symbols has an unevenness. End up. In order to provide a display part without unevenness, it is necessary to either form a part to be embossed and a part not to be embossed or to provide a display part that covers the uneven part. However, since the process is troublesome and the latter has a problem of wear of the coating layer, none of them is an appropriate method.

  Therefore, the present invention can easily obtain a metallic decorative molded body in which a decoration with a metallic unevenness is made without reducing the metallic texture, and a nonmetallic decorative with no unevenness is mixed. It was made for the purpose.

  That is, the present invention has a non-metallic decorative portion formed by laminating a non-metallic colored layer on a part of a concavo-convex pattern provided on a transparent resin, and a metal thin film layer is laminated on another part of the concavo-convex pattern. Provided is a metal-tone decorative molded body having a metal-tone decoration portion.

  Since it has a non-metallic decoration part formed by laminating a non-metallic colored layer on a part of a concavo-convex pattern provided on a transparent resin and a thin metal film layer is laminated on another part of the concavo-convex pattern, the concavo-convex pattern In the transparent resin marked with, the part with the metallic decoration can see the uneven pattern, but the part with the non-metallic decoration cannot see the uneven pattern A metallic decorative molded body having excellent decorating properties can be obtained.

  It can be set as the metal decoration decoration molded object whose uneven | corrugated height of the transparent resin which forms the said uneven | corrugated pattern is 0.1 micrometer-5.0 micrometers. Since the concavo-convex height of the concavo-convex pattern is as thin (low) as 0.1 μm to 5.0 μm, a metal-like decorative molded body with a thin thickness can be obtained. Moreover, since the unevenness | corrugation height of an uneven | corrugated pattern is thin, a metal thin film layer can be easily formed in the surface by a physical vapor deposition method, and the metallic decoration part which consists of a metallic uneven | corrugated pattern can be obtained.

  Moreover, since the uneven height of the uneven pattern is as thin as 0.1 μm to 5.0 μm, it is possible to make the uneven pattern visible simply by providing a metal thin film layer directly along the uneven pattern of the uneven pattern. It is possible to prevent the concavo-convex pattern from being visually recognized only by providing the non-metallic coloring layer directly along the surface. Therefore, it is possible to easily form a concavo-convex pattern on the entire plane of a transparent resin such as a resin film or a resin molded body, and to easily form a concavo-convex pattern by simply forming a metal thin film layer and a non-metallic colored layer later. The part which does not have can be formed. Therefore, when forming the uneven pattern, it is not necessary to divide the place where the uneven pattern is attached and the place where the uneven pattern is not attached. Furthermore, a coating layer for erasing the uneven pattern is not provided. Therefore, the surface state of the molded body before applying the concavo-convex pattern can be maintained without the coating layer appearing on the surface of the molded body.

  The metal thin film layer may be a vapor deposition layer having a layer thickness of 5 nm to 500 nm formed by any one of a vacuum vapor deposition method, a sputtering method, and a physical vapor deposition method including an ion plating method. Since the metal thin film layer is formed by a vapor deposition layer having a thickness of 5 nm to 500 nm, a uniform metal thin film layer can be provided following a very thin uneven pattern of 0.1 μm to 5.0 μm, and if necessary The metal thin film layer can be provided so as to cover the uneven pattern. And since it is a vapor deposition layer, it can bring out the outstanding metallic tone equivalent to a metal.

  Further, a holding layer for protecting the metal thin film layer can be provided by being laminated on the metal thin film layer. Since the holding layer for protecting the metal thin film layer is provided on the metal thin film layer, the metal thin film layer is formed in the injection molding process when the resin film and the resin molded body are integrated to produce a metal decorative molded body. The metal thin film layer can be prevented from flowing out by avoiding contact with the molten resin. Therefore, it can be set as the metal decoration decoration body excellent in the design property which has a metal-like uneven feeling.

  The present invention also provides a metallic decorative molded body in which the metallic decoration part is visually recognized with a feeling of unevenness, while the nonmetallic decorative part is visually recognized without a feeling of unevenness, and can do. Since the non-metallic colored layer is laminated along the unevenness of the concavo-convex pattern, the portion where the non-metallic colored layer is laminated is visually recognized in a planar manner without a feeling of unevenness. On the other hand, since the metal tone thin film layer is laminated along the irregularities of the irregular pattern, the portion where the metal tone thin film layer is laminated is visually recognized with a sense of irregularity.

  And a transparent resin consists of a transparent resin molding and a transparent resin film, and the said uneven | corrugated pattern shall be provided in this resin film. Since the transparent resin consists of a transparent resin molded body and a transparent resin film, and the uneven pattern is provided on the resin film, by integrating the decorated resin film with molded bodies of various shapes Various shapes of metallic decorative molded bodies can be obtained. Moreover, by processing into a resin film, formation of a concavo-convex pattern, formation of a metal thin film layer, and formation of a non-metallic coloring layer can be easily performed. In addition, an uneven | corrugated pattern, a metal thin film layer, and a nonmetallic coloring layer can also be formed in a transparent resin molding.

  According to the metal-tone decorative molded body of the present invention, a metal-tone decorative molded body in which a metallic-tone decorative portion that visually recognizes a concavo-convex pattern and a non-metallic decorative portion that does not visually recognize a concavo-convex pattern is easily obtained. be able to. Moreover, although this metal-like decorative molded body can be partially visually recognized with a sense of unevenness, it can be made thin, and is suitably used for electronic devices that are required to be thin and downsized. be able to.

  The present invention will be described in more detail with reference to the drawings. In the following various embodiments, a duplicate description of common materials, manufacturing methods, and the like is omitted.

First Embodiment [FIGS. 2 and 3] In this embodiment, a decorative sheet 11 for a key sheet 10 used for the cellular phone 1 shown in FIG. 1 will be described as an example of a metallic decorative molded body. 2 is a plan view (top view) of the key sheet 10 in which the decorative sheet 11 is placed on a base sheet 18 made of a rubber-like elastic body, and FIG. 3 is a cross-sectional view taken along the line SA-SA in FIG. FIG. As shown in FIG. 3, the key sheet 10 includes a decorative sheet 11 that includes a resin molded body 12 made of a hard resin and a resin film 13 that covers the resin molded body 12 and is integrated with the resin molded body 12. The base sheet 18 is made of a rubber-like elastic body such as silicone rubber or thermoplastic elastomer. An uneven pattern 13 b is formed on the back surface 13 a of the resin film 13 constituting the decorating sheet 11. And in the part used as the display part 15 showing a character, a symbol, etc., the nonmetallic coloring layer 16 is laminated | stacked along the uneven | corrugated pattern 13b. In addition, the metal thin film layer 14 is laminated along the concavo-convex pattern 13b in portions other than the display unit 15. Further, a holding layer 17 is provided on the back surface of the metal thin film layer 14.

  The resin molded body 12 is formed of a resin such as polycarbonate (PC), acrylic, PET, PBT, or a hard resin such as a composite of these resins or an alloy. Since the surface of the resin molded body 12 used in the present embodiment is covered with the resin film 13, a material with low translucency can be used, but the resin film 13 is laminated on the back side of the resin molded body 12. Alternatively, when the key sheet 10 is a so-called illuminated key sheet that is illuminated by an internal light source (not shown), it is preferable to use a material having high translucency.

  The resin film 13 is formed from polycarbonate, acrylic, PET, PBT, a composite or alloy thereof, or a laminate thereof, and the thickness is about 50 μm to 200 μm so that it can be easily formed into a key top shape. A highly transparent film is preferable so that the metal thin film layer 14 and the non-metal colored layer 16 formed on the back surface 13a can be seen. The surface 13c side of the resin film 13 may be smooth or may have a fine unevenness and a matte shape as long as the uneven pattern 13b formed on the back surface 13a can be visually recognized. The concavo-convex pattern 13b formed on the back surface 13a of the resin film 13 can be obtained by passing the resin film 13 through a polishing roll having a surface such as sandpaper, for example. When the resin film 13 is linearly passed through the polishing roll, a linear hairline-shaped uneven pattern 13b is formed, and when the resin film 13 is passed through a curved line, a curved hairline-shaped uneven pattern 13b is formed. Moreover, the uneven | corrugated pattern 13b of a cloth-like (text chair) can be given by changing the location and direction which give a hairline alternately on a predetermined condition. Moreover, when the previous polishing roll is pressed and pulled away, a sandy uneven pattern 13b can be applied.

  The uneven depth of the uneven pattern 13b is 0.1 μm to 5.0 μm. The reason why the concavo-convex depth of the concavo-convex pattern 13b is 0.1 μm to 5.0 μm is that when the thickness is smaller than 0.1 μm, the concavo-convex pattern is not visually recognized even when the metal thin film layer 14 is applied. This is because it is difficult to obtain a vapor deposition layer having a uniform layer thickness that follows the shape.

  The metal thin film layer 14 is formed of aluminum by physical vapor deposition such as vacuum vapor deposition, ion plating, or sputtering, or chemical vapor deposition such as thermal CVD (Chemical Vapor Deposition), plasma CVD, or photo CVD. And a layer formed of a metal thin film such as tin or indium. Among these methods, it is preferable to use a physical vapor deposition method in which the layer thickness to be formed is easily controlled and a uniform metal thin film layer 14 is easily formed. The metal thin film layer 14 is formed so as to follow the concavo-convex pattern 13b on the back surface 13a of the resin film 13 and have a layer thickness of 5 nm to 500 nm. If the layer thickness is less than 5 nm, a metallic mirror feeling cannot be obtained, and if the layer thickness exceeds 500 nm, cracks are likely to occur when the resin film 13 is drawn. Moreover, the metal thin film layer 14 can be made into a transparent metal thin film layer 14 by setting the thickness of the metal thin film layer 14 to about 5 nm to 35 nm, and the metal thin film layer 14 having no transparency by setting the layer thickness to more than 35 nm. It can be. Therefore, if the metal thin film layer 14 having transparency is formed, the color tone of the metal layer reflecting the color tone of the holding layer 17 can be obtained. Examples of the metal used for the metal thin film layer 14 include aluminum, tin, and indium. The metal thin film layer 14 is preferably formed so as to follow the concavo-convex shape of the concavo-convex pattern 13b so as not to fill the concavo-convex pattern 13b. However, as in this embodiment, the concavo-convex pattern 13b is formed on the back surface 13a side of the resin film 13. When the metal thin film layer 14 is provided from the rear surface 13a side, the metal thin film layer 14 may be formed so as to fill the concave and convex pattern 13b because the concave and convex pattern 13b is located on the side to be viewed.

  The display unit 15 is a part that represents characters, numbers, symbols, figures, and the like (hereinafter collectively referred to as “characters”), and is a part where the non-metallic coloring layer 16 is visually recognized in the present embodiment. The non-metallic coloring layer 16 is a printing layer formed on the concavo-convex pattern 13b provided on the resin film 13, and includes urethane, acrylic, vinyl, polycarbonate, which does not include particles that emit metallic luster such as metal particles. It is formed by screen printing, gravure printing, offset printing, or pad printing with a thermosetting ink such as polyester, or an ultraviolet curable ink.

  The holding layer 17 is a layer provided to prevent the display unit 15 from being distorted when the resin molded body 12 is injection molded. The holding layer 17 can be formed using the same material and method as the non-metallic coloring layer 16.

  An example of the manufacturing method of the key sheet 10 is as follows. Initially, the resin film 13 which has a metallic decoration part and a nonmetallic decoration part is manufactured. First, a polishing roll in which sandpaper is attached to a metal roll is prepared, and the concave / convex pattern 13b is formed by so-called scratching while passing one side of the resin film 13 in contact with the polishing roll. Next, the non-metallic coloring layer 16 is provided by printing in order to form characters, figures, etc. from above the concavo-convex pattern 13b, and the display unit 15 is formed. Then, the metal thin film layer 14 is formed on the entire back surface 13a provided with the uneven pattern 13b and the non-metallic coloring layer 16. Finally, the holding layer 17 is formed thereon by printing. In this way, the display part 15 turns into a non-metallic decoration part, and the resin film 13 from which the circumference | surroundings of the display part 15 becomes a metallic decoration part is obtained.

  In this embodiment, since the character is formed by the non-metallic coloring layer 16, the uneven pattern 13b is not visually recognized in the character part, and a flat, non-metallic character appears, while the background is a metallic uneven pattern. 13b appears and appears as a three-dimensional metallic tone background, but if the metal thin film layer 14 forms characters and the non-metallic coloring layer 16 is formed in a letter shape, the display unit 15 has a metallic tone uneven pattern 13a. , And the background is non-metallic, so that the uneven pattern 13a is not visible.

  Next, the resin film 13 thus obtained is inserted into a mold for molding the resin molded body 12, and the resin film 13 and the resin molded body 12 are integrated while injecting the molten resin to form the resin molded body 12. A decorative sheet 11 is obtained. Here, the resin film 13 inserted into the mold may be provided with an adhesive layer or the like on the holding layer 17 as necessary in order to increase the degree of fixation with the resin molded body 12. Finally, the decorative sheet 11 is fixed to the base sheet 18 made of a rubber-like elastic body such as silicone rubber or thermoplastic elastomer with an adhesive not shown to obtain the key sheet 10.

  The key sheet 10 has a thin uneven pattern 13b of 0.1 μm to 5 μm, and the portion provided with the metal thin film layer 14 by vapor deposition looks like the uneven pattern 13b with a sense of unevenness, and is similarly 0.1 μm to 5 μm. A portion where the non-metallic coloring layer 16 is provided by printing with a non-metallic ink on the thin concavo-convex pattern 13b appears to have no unevenness.

2nd Embodiment [FIG. 4] ; The decoration sheet 21 for the key sheet | seat 20 is demonstrated as an example of a metal tone decoration molded object also in this embodiment. The key sheet 20 of this embodiment differs from the key sheet 10 of the previous embodiment in the configuration of the resin film 23. A sectional view of the key sheet 20 corresponding to FIG. 3 is shown in FIG.

  In the resin film 13 of the first embodiment, after the uneven pattern 13b is provided, the non-metallic coloring layer 16 that is the character portion is first formed. However, in the resin film 23 of the present embodiment, the metal pattern is applied after the uneven pattern 23b is applied. The thin film layer 24 is formed on the entire back surface 23 a of the resin film 23. Then, a holding layer 27 is formed on the metal thin film layer 24 except for the portion to be the display portion 25, and the metal thin film layer 24 formed in the portion to be the display portion 25 is removed by etching. And the resin ink used as the nonmetallic coloring layer 26 is printed on the whole back surface 23a of the resin film 23 containing the display part 25 and its circumference | surroundings.

  Since the key sheet 20 obtained in this way also formed characters with the non-metallic coloring layer 16, the non-metallic character appeared in a plane without the uneven pattern 13a and decorated with a metallic hair line in the background. ing.

Third Embodiment [FIG. 5] ; Although the decorative sheets 11 and 21 in the key sheets 10 and 20 shown in the above embodiment are configured to cover the surface of the resin molded body 12 with the resin films 13 and 23, It is also possible to use the decorative sheet 31 in which the resin film 33 is located on the back surface of the resin molded body 32. In this case, the resin molded body 12 needs to be made of a highly transparent material. FIG. 5 shows a cross-sectional view corresponding to FIG. 3 of the key sheet 30 of the present embodiment.

  The key sheet 30 is a decorative sheet 31 including a resin molded body 32 made of a hard resin and a resin film 33 positioned on the back surface of the resin molded body 32 and integrated with the resin molded body 32. 38 has a fixed structure. In the decorative sheet 31, a concavo-convex pattern 33 b is formed on the surface 33 c of the resin film 33. And in the part used as the display part 35 showing a character, a symbol, etc., the nonmetallic coloring layer 36 is laminated | stacked along the uneven | corrugated pattern 33b. In addition, the metal thin film layer 34 is laminated along the concavo-convex pattern 33b in portions other than the display portion 35. Further, a holding layer 37 is provided on the surface of the metal thin film layer 34.

  An example of the manufacturing method of the key sheet 30 is as follows. Initially, the resin film 13 which has a metallic decoration part and a nonmetallic decoration part is manufactured. First, the concavo-convex pattern 33b is formed on the resin film 33 by the same method as in the first embodiment, the second embodiment, and the like. Next, a metal thin film layer 34 is formed on the surface by vapor deposition so as to follow the uneven pattern 33b. That is, the formation of the metal thin film layer 34 is performed such that the thickness of the metal thin film layer 34 is in the range of 5 nm to 500 nm with respect to the uneven height of 0.1 μm to 5.0 μm of the uneven pattern 33b. The layer thickness is set so as not to fill the concave / convex pattern 33b. Next, the metal thin film layer 34 provided in the portion that becomes the display portion 35 is removed by etching or the like. And the resin ink used as the nonmetallic coloring layer 26 is apply | coated to the location from which the metal thin film layer 34 was removed by printing. Finally, the holding layer 37 is printed on the entire surface of the resin film 33. In this way, the display part 35 becomes a non-metallic decoration part, and the resin film 33 from which the display part 35 becomes a metallic decoration part is obtained. Next, the resin film 33 obtained in this way is inserted into a mold for molding the resin molded body 32, and then the resin film 33 is molded by injecting the molten resin, while the resin film 33 is integrated with the resin film 33. A sheet 31 is obtained. Finally, the decorating sheet 31 is fixed to the base sheet 38 made of a rubber-like elastic body with an adhesive not shown in the figure to obtain the key sheet 30.

  In 1st Embodiment and 2nd Embodiment, although the uneven | corrugated pattern 13b, 23b is given to the back surface 13a, 23a side of the resin films 13 and 23, in 3rd Embodiment, it is uneven | corrugated on the surface 33c side of the resin film 33. The resin film 33 and the resin molded body 32 are integrated so that the pattern 33b is applied.

  The key sheet 30 has a thin uneven pattern 33b of 0.1 μm to 5 μm, and the portion provided with the metal thin film layer 34 by vapor deposition looks like the uneven pattern 33b with a sense of unevenness, but is also 0.1 μm to 5 μm. A portion where the non-metallic coloring layer 36 is provided by printing with a non-metallic ink on the thin uneven pattern 33b does not feel the unevenness.

Modification of Embodiment: The key sheets 10, 20, and 30 shown in the above embodiment are all integrated with the resin films 13, 23, and 33 on the front and back surfaces of the resin molded body 12. Without using 13, 23, 33, like the key sheet 40 shown in FIG. 6, the concave and convex pattern 43 b is directly attached to the back surface of the resin molded body 42, and the metallic decoration part and the nonmetallic decoration part are provided. It can also be provided. In the decorative sheet 41 of the key sheet 40, reference numeral 42 denotes a resin molded body, 44 denotes a metal thin film layer, 45 denotes a display unit, 46 denotes a non-metallic coloring layer, and 47 denotes a holding layer.

  In the above embodiments, the decorative sheets 11, 21, 31, and 41 used for the key sheets 10, 20, 30, and 40 have been described as examples of the decorative molded body. However, the mobile phone 1, the portable information terminal, the AV Panels such as display windows for liquid crystal display parts and decorative emblems for equipment and automotive equipment, and resin casings that form the outer frame of these electronic equipment appear outside the equipment and are subject to design. The present invention can be applied to molded products made of various resins.

Example 1 ; The surface of a PET film (13) having a thickness of 50 μm having a smooth surface and a smooth surface is moved along the PET film (13) while pressing an unevenness imparting tool attached with sandpaper, A concavo-convex pattern (13b) of about 0.5 μm to 2.0 μm was given. Next, the character which becomes the display part (15) is formed on the concavo-convex pattern (13b) by non-metallic polyester ink by screen printing, and the non-metallic coloring layer (16) having a thickness of 3 μm to 5 μm is formed. Formed. Thereafter, vacuum evaporation was performed on the entire surface having the uneven pattern (13b) to form a metal thin film layer (14) made of aluminum having a thickness of 35 nm to 45 nm. The metal thin film layer (14) was formed so as to cover the non-metallic colored layer (16) in the portion where the non-metallic colored layer (16) was applied. Finally, solid ink was printed on the non-metallic coloring layer (16) to form a holding layer (17) having a thickness of 5 to 7 μm. Thus, a decorated PET film (14) was obtained. This was inserted into a mold for forming a resin molded body, a molten polycarbonate resin was injected, and the decorative resin (11) was obtained by integrating the polycarbonate resin and the PET film (14). Furthermore, the base sheet (18) made of silicone rubber and the decorative sheet (11) were fixed with a UV curable adhesive to obtain a key sheet (10) for a pushbutton switch shown in FIG.

  In the obtained key sheet (10), the display part (15) representing the characters is non-metallic, and the hairline is visually recognized without being recognized, while the surrounding part is metallic and linear hairline. Was visually recognized with a sense of unevenness.

Example 2 A PET film (23) having an uneven pattern (23b) was obtained in the same manner as in Example 1. Next, a metal thin film layer (24) made of aluminum having a thickness of 35 nm to 45 nm is formed on the concavo-convex pattern (23b) by vacuum deposition, and a thickness of 3 μm is formed with a polyester-based ink except a character-shaped portion thereon. A holding layer (27) of ˜5 μm was formed by printing. Next, an etching process was performed to remove the metal thin film layer (24) in the character shape, and the portion removed with the black polyester-based ink was buried to form the display portion (25). Thereafter, the polycarbonate resin and this PET film (23) were integrated by the same method as in Example 1 to obtain a decorative sheet (21). Further, the base sheet (28) made of silicone rubber and the decorative sheet (21) were fixed with a UV curable adhesive to obtain a key sheet (20) for a pushbutton switch shown in FIG.

  In the obtained key sheet (20), the display part (25) representing characters is non-metallic, and the hairline is visually recognized without being recognized, while the surrounding part is metallic and linear hairline. Was visually recognized with a sense of unevenness.

Example 3 A PET film (33) having an uneven pattern (33b) was obtained in the same manner as in Example 1. Next, a metal thin film layer (34) having a thickness of 45 nm to 50 nm formed by aluminum vapor deposition was formed on the entire surface along the concavo-convex pattern (33b). Next, after the metal thin film layer (34) of the character portion which becomes the display portion (35) is removed by laser, this portion is screen-printed with non-metallic polyester ink, and the thickness is 5 μm to 7 μm. A non-metallic colored layer (36) was formed. Thereafter, a polyester-based ink was solid-printed on the entire surface provided with the metal thin film layer (34) and the nonmetal coloring layer (36) to form a holding layer (37) having a thickness of 5 to 7 μm. In this way, a decorated PET film (34) was obtained. This was inserted into a mold for forming a resin molded body, molten polycarbonate resin was injected, and the polycarbonate resin and this PET film (34) were integrated to obtain a decorative sheet (31). Further, the base sheet (28) made of silicone rubber and the decorative sheet (31) were fixed with a UV curable adhesive to obtain a key sheet (30) for a pushbutton switch shown in FIG.

  In the obtained key sheet (30), the display part (35) representing the characters is non-metallic, and the hairline is visually recognized without being recognized, while the surrounding part is metallic and linear hairline. Was visually recognized with a sense of unevenness.

FIG. The top view of the key sheet | seat which is a decorative molded body of this invention. The SA-SA sectional view taken on the line in FIG. 2 of the key sheet by 1st Embodiment of this invention. The fragmentary sectional view of the key sheet by a 2nd embodiment of the present invention. The fragmentary sectional view of the key sheet by a 3rd embodiment of the present invention. The fragmentary sectional view of the key sheet by the modification of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cellular phone 10 Key sheet 11 Decorating sheet (Metallic decorative molded body; First embodiment)
12 resin molded body 13 resin film 13a back surface 13b uneven pattern 13c surface 14 metal thin film layer 15 display unit 16 non-metallic coloring layer 17 holding layer 18 base sheet 20 key sheet 21 decorative sheet (metallic decorative molded body; second implementation Form)
22 resin molded body 23 resin film 23a back surface 23b concavo-convex pattern 23c surface 24 metal thin film layer 25 display unit 26 non-metallic coloring layer 27 holding layer 28 base sheet 30 key sheet 31 decorative sheet (metal-like decorative molded body; third implementation Form)
32 resin molded body 33 resin film 33a back surface 33b concavo-convex pattern 33c surface 34 metal thin film layer 35 display unit 36 non-metallic coloring layer 37 holding layer 38 base sheet 40 key sheet 41 decorative sheet (metal-like decorative molded body; modified embodiment) )
42 resin molded body 44 metal thin film layer 45 display unit 46 non-metallic coloring layer 47 holding layer 48 base sheet

Claims (6)

  Metal decoration that has a non-metallic decoration part formed by laminating a non-metallic colored layer on a part of a concavo-convex pattern provided on a transparent resin, and a metal thin film layer laminated on another part of the concavo-convex pattern Metallic decorative molded body having a part.   2. The metallic decorative molded body according to claim 1, wherein the uneven height of the transparent resin forming the uneven pattern is 0.1 μm to 5.0 μm.   The metal thin film layer is a deposited layer having a thickness of 5 nm to 500 nm formed by any one of a vacuum deposition method, a sputtering method, and a physical deposition method including an ion plating method. Metallic decorative molded body.   The metal decoration decoration molded body of any one of Claims 1-3 which provided the holding | maintenance layer which protects a metal thin film layer by laminating | stacking on the metal thin film layer.   The metallic tone according to any one of claims 1 to 4, wherein the metallic decoration portion is visually recognized with a sense of unevenness, while the nonmetallic decorative portion is visually recognized without a sense of irregularity. Decorative molded body. The metallic decorative decorative article according to any one of claims 1 to 5, wherein the transparent resin comprises a transparent resin molded article and a transparent resin film, and the uneven pattern is provided on the resin film.

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