JP2005053004A - High brightness molded product and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a high brightness molded product having high dimensional precision and high brightness, and its manufacturing method. <P>SOLUTION: This high brightness molded product is a molded product 15 which comprises an ultraviolet-curable resin 7, has a polygonal, polyhedral or smooth almost hemispherical fine shape and is provided with a metallic gloss layer. The manufacturing method of the high brightness molded product has a process for filling the recessed carved pattern 1 of a mold 2 with the ultraviolet-curable resin 7 using the mold 2 having the recessed carved pattern 1 having the polygonal, polyhedral or smooth almost hemispherical fine shape, a process for bonding a synthetic resin sheet 10 having light transmissivity to the ultraviolet-curable resin 7 under pressure, a process for irradiating the ultraviolet-curable resin 7 with ultraviolet rays 12 to cure the same and integrating the cured resin with the synthetic resin sheet 10, a process for peeling the synthetic resin sheet 10 integrated with the ultraviolet-curable resin 7 from the mold 2 and a process for providing the metallic gloss layer. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a high-intensity molded article made of an ultraviolet curable resin and a method for producing the same, and more specifically, can be used for decorative members such as apparel products, shoe products and accessory products, interiors, and electronic devices. The present invention relates to a high-intensity molded product that can be produced and a method for producing the same.
[0002]
[Prior art]
Conventionally, there has been a decorative body that has been processed by imitating diamond using glass or crystal glass (crystal), but its mass productivity is low.
[0003]
On the other hand, a decorative body imitating diamond is manufactured by injection molding of synthetic resin. According to this manufacturing method, it is necessary to remove the generated spool runner, but since it cannot be completely removed, it cannot be said that the finished state such as the shape and brightness of the molded product is good. Further, the resin is injected into the mold from the injection port and filled, but it is difficult to fill the resin to every corner of the mold, and the dimensional accuracy of the molded product is not so high. Furthermore, in order to develop in multiple colors, it is necessary to color (original) the resin itself, but the resin replacement cleaning action in the screw is forced and mass productivity is low.
[0004]
Therefore, a molding technique based on Japanese Patent Publication No. 2-2403 “A molded product made of an ultraviolet curable resin and a manufacturing method thereof” was examined (see Patent Document 1). Although this molding technology has the advantage of being excellent in mass productivity and product dimensional accuracy, there is a problem that the brightness of the molded product does not reach the required level.
[0005]
[Patent Document 1]
Japanese Examined Patent Publication No. 2-2403 (Pages 2 and 3, Fig. 1)
[0006]
[Problems to be solved by the invention]
Therefore, the present invention intends to provide a high-luminance molded product capable of obtaining a molded product with high dimensional accuracy and high luminance, and a manufacturing method thereof.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the present invention takes the following technical means.
(1) The high-luminance molded product of the present invention is a molded product made of an ultraviolet curable resin, and has a polygonal shape, a multifaceted shape, or a smooth, substantially hemispherical fine shape and a metallic gloss layer. And
[0008]
This high-intensity molded product has a polygonal shape, a multi-faceted shape, or a smooth, substantially hemispherical fine shape, and has a metallic gloss layer, and has high dimensional accuracy and brightness.
[0009]
And since this high-intensity molded product is made of UV-curing resin, it is harder to break than a decorative body molded with glass or crystal glass (crystal), and its specific gravity is lighter than glass or crystal glass (crystal). easy. As the ultraviolet curable resin, for example, urethane acrylic resin, epoxy acrylic resin, silicon acrylic resin, or the like can be used.
[0010]
(2) The method for producing a high-intensity molded article according to the present invention uses a mold having an indented pattern formed in a polygonal shape, a polyhedral shape, or a smooth, substantially hemispherical fine shape. A step of filling the pattern with an ultraviolet curable resin having translucency, a step of pressing a synthetic resin sheet having a translucency on the ultraviolet curable resin, and curing the ultraviolet curable resin by irradiating ultraviolet rays. The method includes a step of integrating with a synthetic resin sheet, a step of peeling the synthetic resin sheet integrated with the ultraviolet curable resin from a mold, and a step of providing a metallic gloss layer.
[0011]
(1) This method for producing a high-intensity molded product uses a mold having a concave pattern formed in a polygonal shape, a multi-faceted shape, or a smooth, substantially hemispherical fine shape, and thus has high dimensional accuracy and brightness. Molding can be performed.
[0012]
In order to form a mold having the indented pattern, electric discharge machining, metal corrosion machining (etching), engraving machining such as diamond cutting, punching and drilling, press machining, laser machining, LIGA process machining Method, electrocasting (electroforming, electroconjugation), resin plate making method and the like.
[0013]
Of these, when formed by electroforming, the indented pattern of the mold can be made finer than that formed by a lathe like the conventional indented pattern of the mold. That is, a fine polygonal indented pattern, a multi-faceted indented pattern, a smooth substantially hemispherical indented pattern, and the like can be stably formed on the mold by electroforming. As described above, when the indented pattern of the mold is formed into a fine polygonal shape, a polyhedral shape, or a smooth substantially hemispherical shape, the luminance can be greatly improved.
[0014]
(2) Moreover, since it has the process of providing a metallic luster layer, metallic luster is provided to a molded article and a brightness | luminance improves more.
[0015]
The metallic luster layer can be provided on a synthetic resin sheet and / or an ultraviolet curable resin, and a physical vapor deposition method such as a vacuum vapor deposition method, a sputtering method, an ion plating method, a chemical vapor deposition method such as a chemical reaction method or a thermal decomposition method. , Metal vapor deposition methods such as plasma reaction methods such as plasma polymerization, laminating methods that adhere to glossy sheets with heat, adhesives, adhesives, etc., methods for printing metal glossy inks, etc. It can be performed by a hot stamping method or the like.
[0016]
A holographic film etc. can be illustrated as a sheet | seat which has the glossiness used for the said lamination method. Examples of the printing method include silk screen printing, gravure printing, flexographic printing, and offset printing.
[0017]
Materials used for the metal vapor deposition method include metals such as Au, Ag, Pt, Cu, Al, Ni, Cr, Ti, Mg, Pb, Sn, and Fe, alloys thereof, and SnO. ₂ , SiO ₂ , Al ₂ O ₃ TiO ₂ And metal oxides such as SbO.
[0018]
(3) Since this method of manufacturing a high-intensity molded product is molded with a light-transmitting ultraviolet curable resin, it is cracked compared to decorative objects molded with glass or crystal glass (crystal). It is difficult to handle, and its specific gravity is lighter than glass or crystal glass (crystal), so it is easy to handle and easy to carry in mass production.
[0019]
Further, since the spool runner generated by the injection molding method is not generated, the finished state is good without removing the dimensional accuracy and brightness of the molded product by removing them.
[0020]
As the ultraviolet curable resin, for example, urethane acrylic resin, epoxy acrylic resin, silicon acrylic resin, or the like can be used. As the synthetic resin sheet, for example, a polyester resin sheet, a polycarbonate resin sheet, an acrylic resin sheet, or an ABS resin sheet can be used, and any material that can be used for ultraviolet curing may be used.
[0021]
(3) The mold having the concave pattern may be disposed on the surface of the rotating cylinder.
[0022]
As described above, when the mold having the concave pattern is disposed on the surface of the rotating cylinder, the molding can be continuously performed. Here, in order to arrange the mold on the surface of the rotating cylinder, for example, a mold having a concave pattern can be fitted and fixed to a plurality of concave portions provided on the surface of the hollow cylinder.
[0023]
(4) The surface of the rotating cylinder may be filled with the ultraviolet curable resin in the concave pattern of the mold by rolling an elastic roll infiltrated with the ultraviolet curable resin.
[0024]
With this configuration, even when the mold having an indented pattern formed by electroforming is flat and has a corner, the elastic roll infiltrated with the UV curable resin is transferred to the surface of the rotating cylinder. By moving it, it can roll flexibly following the mold on the surface of the rotating cylinder (flat shape with flat plate finish) due to the elasticity of the elastic roll, and fill the concave pattern with UV curable resin smoothly In addition, since it is difficult for air bubbles to be mixed in the resin to be filled, a molded product with higher luminance can be manufactured.
[0025]
(5) It is good also as having the process of providing a printing layer in the said synthetic resin sheet.
When configured in this way, unlike the injection molding method, it is not necessary to color (original) the resin itself, so that the molded product can be easily developed in multiple colors, and mass productivity is high and costs are reduced. Can do. Examples of means for providing the print layer include silk screen printing, gravure printing, flexographic printing, and offset printing. The printing layer can be, for example, chromatic or achromatic, and can have properties such as translucency and non-translucency.
[0026]
(6) It is good also as having the process of coat | covering the said metallic luster layer with a synthetic resin layer.
If comprised in this way, the brightness | luminance of a molded article can be hold | maintained over a long period of time by protecting a metallic luster layer with a synthetic resin layer. Further, when the synthetic resin layer is provided on the side of the synthetic resin sheet integrated with the ultraviolet curable resin (the back side of the molded product), the surface treatment layer (anchor coat layer) when the adhesive layer is applied to the back side of the molded product ) Can be combined.
[0027]
Examples of the synthetic resin layer include acrylic resins, polyurethane resins, urethane acrylic resins, polyvinyl acetate resins, and polyolefin resins. As a means for providing the synthetic resin layer, a silk screen printing method, a gravure printing method, a flexographic printing method, an offset printing method, a spray coating method, or the like can be used.
[0028]
(7) It is good also as having the process of providing the adhesion layer in the said synthetic resin sheet.
If comprised in this way, a molded article can be stuck on various places, members, etc., and a utilization range further expands. Examples of the adhesive layer include an adhesive material such as a double-sided tape type, and an adhesive such as a hot melt type.
[0029]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
(Embodiment 1)
The high-intensity molded product of this embodiment is a molded product made of an ultraviolet curable resin and has a polygonal shape, a multi-faceted shape, or a smooth, substantially hemispherical fine shape and a metallic gloss layer. It was manufactured with the equipment like.
[0030]
As shown in FIGS. 1 and 2, a mold 2 having a concave pattern 1 (see FIG. 2; a fine polygonal shape, a multifaceted shape, a smooth substantially hemispherical shape, etc.) formed by electroforming is a rotating cylinder 3. It is arrange | positioned on the surface. The mold 2 having the concave pattern 1 is fitted in a concave portion on the surface of a hollow rotary cylinder 3 and is arranged in a cylindrical shape. The mold 2 was prepared by electrocasting, and a processed surface having a plurality of indented patterns 1 such as a fine polygonal shape, a polyhedral shape, and a smooth substantially hemispherical shape was further smoothly polished and formed.
[0031]
And the manufacturing method of the high-intensity molded product of this embodiment has the following each process.
[0032]
(1) A step of filling the indented pattern 1 of the mold 2 with an ultraviolet curable resin 7 having translucency. Specifically, the elastic roll 8 in which a UV curable resin 7 (translucent urethane acrylic resin, epoxy acrylic resin, silicon acrylic resin, etc.) is infiltrated on the surface of the rotating cylinder 3 is rolled. Thus, the UV curable resin 7 is filled in the concave pattern 1 of the mold 2. The ultraviolet curable resin 7 is circulated and used in the receiving tank 9.
[0033]
(2) Before the ultraviolet curable resin 7 filled in the concave portion of the concave pattern 1 is cured, the synthetic resin sheet 10 having translucency (translucent polyester resin, polycarbonate resin, acrylic resin) In this step, a resin, an ABS resin, or the like) is pressed from the outer peripheral surface of the mold 2 by the pressing roll 11 (touch roll).
[0034]
(3) Irradiation with ultraviolet rays 12 from the synthetic resin sheet 10 side to produce an ultraviolet curable resin 7 (resin having a fine polygonal shape, a multi-sided shape, a smooth substantially hemispherical shape, etc. molded in the concave portion of the concave pattern 1) It is a step of curing and integrating with the synthetic resin sheet 10.
[0035]
(4) A step of peeling the synthetic resin sheet 10 integrated with the ultraviolet curable resin 7 from the mold 2 with a peeling roll 13 (drawing roll). Then, the synthetic resin sheet 10 integrated with the ultraviolet curable resin 7 was cut to an appropriate length by the cutter 14. FIGS. 4 and 5 show one of a plurality of high-intensity molded products 15 (see FIG. 3) fixed to the synthetic resin sheet 10 and punched out.
[0036]
(5) A step of providing a metallic luster layer. Next, in a separate step, a metallic gloss layer was provided from the synthetic resin sheet 10 side or the surface side integrated with the ultraviolet curable resin 7. A metallic gloss layer is formed by a metal vapor deposition method such as a physical vapor deposition method or a chemical vapor deposition method, a laminating method for attaching to a glossy sheet or the like, a method for printing a metal glossy ink, or a hot stamping method. Can be formed.
[0037]
(6) A step of coating the metallic luster layer with a synthetic resin layer. Synthetic resins such as acrylic resin, polyurethane resin, urethane acrylic resin, polyvinyl acetate resin and polyolefin resin are applied to the surface of the metallic gloss layer by silk screen printing method, gravure printing method, flexographic printing method, offset printing method. Then, a synthetic resin layer was formed by printing by a spray coating method or the like.
[0038]
Next, the use state of the high-intensity molded product of this embodiment and its manufacturing method will be described.
[0039]
The high-intensity molded product 15 has a polygonal shape, a multi-faceted shape, or a fine shape that is smooth and substantially hemispherical, and has a metallic gloss layer, and has high dimensional accuracy and brightness.
[0040]
Further, in this method of manufacturing a high-intensity molded product, the mold 2 having the indented pattern 1 disposed on the surface of the rotating cylinder 3 is formed by electroforming, so that it looks like the indented pattern of the conventional mold. Compared with what was formed with the lathe, the indentation pattern 1 of the metal mold | die 2 can be made finer, and a shaping | molding with high dimensional accuracy and brightness | luminance can be performed. In addition, since the mold 2 having the indented pattern 1 formed by the electroforming method is disposed on the surface of the rotating cylinder 3, the molding can be performed continuously. Here, since the mold 2 is disposed on the surface of the rotating cylinder 3, for example, the mold 2 having the indented pattern 1 can be fitted and fixed to a plurality of concave portions provided on the surface of the hollow cylinder 3. Furthermore, since it has decided to have the process of providing a metallic luster layer, metallic luster is provided to a molded article and a brightness | luminance improves more.
[0041]
Thus, since molding with high dimensional accuracy and brightness can be performed continuously, there is an advantage that a molded product with high dimensional accuracy and high brightness can be efficiently molded.
[0042]
Moreover, since it has the process of coat | covering the said metallic luster layer with a synthetic resin layer, the brightness | luminance of a molded article can be maintained over a long period of time by protecting a metallic luster layer with a synthetic resin layer. Further, when the synthetic resin layer is provided on the side of the synthetic resin sheet 10 integrated with the ultraviolet curable resin 7 (the back side of the molded product), the surface treatment layer (anchor) when the adhesive layer is applied to the back side of the molded product There is an advantage that the role as a coat layer) can be made to coexist.
[0043]
This high-intensity molded product manufacturing method does not generate a spool runner that is generated by the injection molding method, so that the removal of the runner suppresses the reduction in dimensional accuracy and brightness of the molded product, and the finished state is improved. There are advantages. And since the molded product by this manufacturing method consists of the ultraviolet curable resin 7 which has translucency, there exists an advantage that it is easy to handle and it is hard to break compared with the decorative body shape | molded with glass, crystal glass (crystal), etc. . In addition, the specific gravity is lighter than glass or crystal glass, and there is an advantage that it is easier to carry when carrying out mass production.
[0044]
In addition, a fine polygonal indented pattern 1, a polyhedral indented pattern 1, a smooth substantially hemispherical indented pattern 1 and the like can be stably formed on the mold 2 by electroforming. Thus, when the concave pattern 1 of the mold 2 is made into a fine polygonal shape, a multi-faceted shape, or a smooth substantially hemispherical shape by electroforming, the brightness is greatly improved as compared with a molded product by a conventional molding technique. There is an advantage that you can.
[0045]
Furthermore, since the elastic roll 8 infiltrated with the ultraviolet curable resin 7 is rolled on the surface of the rotating cylinder 3, the concave pattern 1 of the mold 2 is filled with the ultraviolet curable resin 7. Even if the mold 2 having the indented pattern 1 formed by the electroforming method has a flat finish and a corner 16, the surface of the rotating cylinder 3 is curved, whereas the surface of the mold 2 is Even if irregularities are formed between the flat surfaces, the elastic roll 8 infiltrated with the UV curable resin 7 rolls on the surface of the rotating cylinder 3 to roll the surface of the rotating cylinder 3 by the elasticity of the elastic roll 8. Can be rolled flexibly following the mold 2 (flat finish with corners 16 and the surface is flat unlike the surface of the curved rotating cylinder 3), and the indented pattern 1 is UV cured. Tree 7 can be allowed to smoothly fill the also the advantage that air bubbles in the resin allowed to fill it becomes possible to produce a more high brightness molding since hardly contaminated.
[0046]
(Embodiment 2)
The high-luminance molded product of this embodiment is a molded product made of an ultraviolet curable resin, and has a polygonal shape, a multi-faceted shape, or a smooth, substantially hemispherical fine shape and a metallic gloss layer.
[0047]
And as shown in FIG.1 and FIG.2, the manufacturing method of the high-intensity molded article of this embodiment has the following each process.
[0048]
(1) A step of filling the concave pattern 1 of the mold 2 with an ultraviolet curable resin 7 having translucency.
[0049]
(2) Before the ultraviolet curable resin 7 filled in the concave portions of the concave pattern 1 is cured, the synthetic resin sheet 10 having translucency is placed on the outer periphery of the mold 2 by the pressing roll 11 (touch roll). The process of crimping from the surface.
[0050]
(3) Irradiation with ultraviolet rays 12 from the synthetic resin sheet 10 side to produce an ultraviolet curable resin 7 (resin having a fine polygonal shape, a multi-sided shape, a smooth substantially hemispherical shape, etc. molded in the concave portion of the concave pattern 1) A step of curing and integrating with the synthetic resin sheet 10.
[0051]
(4) The process of peeling the synthetic resin sheet 10 integrated with the said ultraviolet curable resin 7 from the metal mold | die 2 with the peeling roll 13 (drawing roll). Then, the synthetic resin sheet 10 integrated with the ultraviolet curable resin 7 was cut to an appropriate length by the cutter 14.
[0052]
(5) A step of forming a chromatic color, achromatic color, translucent or non-translucent printing layer on the synthetic resin sheet 10 integrated with the ultraviolet curable resin 7. The printing layer can be provided by a silk screen printing method, a gravure printing method, a flexographic printing method, an offset printing method, or the like. When the printing layer is provided in this way, unlike the injection molding method, it is not necessary to color (original) the resin itself, and the molded product can be easily developed to multiple colors, and mass production of multiple colors is possible. And the cost is reduced.
[0053]
(6) A step of providing a metallic luster layer.
[0054]
(7) A step of coating the metallic luster layer with a synthetic resin layer.
[0055]
The high-intensity molded product 15 was manufactured through the above steps (1) to (7).
[0056]
(Embodiment 3)
The high-luminance molded product of this embodiment is a molded product made of an ultraviolet curable resin, and has a polygonal shape, a multi-faceted shape, or a smooth, substantially hemispherical fine shape and a metallic gloss layer.
[0057]
And as shown in FIG.1 and FIG.2, the manufacturing method of the high-intensity molded article of this embodiment has the following each process.
[0058]
(1) A step of filling the concave pattern 1 of the mold 2 with an ultraviolet curable resin 7 having translucency.
[0059]
(2) Before the ultraviolet curable resin 7 filled in the concave portions of the concave pattern 1 is cured, the synthetic resin sheet 10 having translucency is placed on the outer periphery of the mold 2 by the pressing roll 11 (touch roll). The process of crimping from the surface.
[0060]
(3) Irradiation with ultraviolet rays 12 from the synthetic resin sheet 10 side to produce an ultraviolet curable resin 7 (resin having a fine polygonal shape, a multi-sided shape, a smooth substantially hemispherical shape, etc. molded in the concave portion of the concave pattern 1) A step of curing and integrating with the synthetic resin sheet 10.
[0061]
(4) The process of peeling the synthetic resin sheet 10 integrated with the said ultraviolet curable resin 7 from the metal mold | die 2 with the peeling roll 13 (drawing roll). Then, the synthetic resin sheet 10 integrated with the ultraviolet curable resin 7 was cut to an appropriate length by the cutter 14.
[0062]
(5) A step of forming a chromatic color, achromatic color, translucent or non-translucent printing layer on the synthetic resin sheet 10 integrated with the ultraviolet curable resin 7. The printing layer can be provided by a silk screen printing method, a gravure printing method, a flexographic printing method, an offset printing method, or the like. When the printing layer is provided in this way, unlike the injection molding method, it is not necessary to color (original) the resin itself, and the molded product can be easily developed to multiple colors, and mass production of multiple colors is possible. And the cost is reduced.
[0063]
(6) A step of providing a metallic luster layer.
[0064]
(7) A step of coating the metallic luster layer with a synthetic resin layer.
[0065]
(8) A step of providing a pressure-sensitive adhesive layer from the side of the synthetic resin sheet 10 using a pressure-sensitive adhesive such as a double-sided tape type or an adhesive such as a hot-melt type after providing a synthetic resin layer on the surface of the metallic luster layer. When the adhesive layer is provided in this manner, the molded product can be attached to any location or member, and the range of use can be further expanded.
[0066]
The high-intensity molded product 15 was manufactured through the above steps (1) to (8).
[0067]
【Example】
Next, the configuration of the present invention will be described more specifically.
[0068]
(Example 1)
As shown in FIGS. 1 and 2, three molds 2 having a plurality of concave patterns 1 were fitted into a cylindrical shape on the surface of a hollow rotating cylinder 3. The indented pattern 1 is a 12-sided round brilliant cut diamond-like fine polygonal and polyhedral shape.
[0069]
Then, a urethane acrylic resin having translucency was filled in the concave pattern 1 of the mold 2 on the surface of the rotating cylinder 3 with an elastic roll 8 and the excess resin was scraped off. Before the urethane acrylic resin filled in the indented pattern 1 is cured, a synthetic resin sheet 10 of a translucent polyester resin is pressure-bonded by a pressing roll 11 (touch roll), and the synthetic resin sheet 10 side is pressed. Ultraviolet rays 12 are irradiated to cure the filled resin, and the fine polygonal and polyhedral resin molded with the indented pattern 1 is integrated with the synthetic resin sheet 10, and is peeled off by a peeling roll 13 (drawing roll). It peeled from the said metal mold | die 2 and cut with the cutter 14 (refer FIG. 3).
[0070]
In the next step, a metallic gloss layer using aluminum is provided on the synthetic resin sheet 10 side by a metal vapor deposition method based on a physical vapor deposition method, and then an acrylic resin is printed on the surface of the metallic gloss layer by a silk screen printing method. A layer was formed. Thereafter, an adhesive layer is provided with a double-sided tape type adhesive material from the sheet side of the synthetic resin sheet 10 integrated with the ultraviolet curable resin 7, and a fine polygonal and multi-sided back flat type 12-surface round brilliant cut diamond. A high-intensity molded product 15 was obtained (see FIG. 4).
[0071]
(Example 2)
As shown in FIGS. 1 and 2, three molds 2 having a plurality of concave patterns 1 were fitted into a cylindrical shape on the surface of a hollow rotating cylinder 3. The concave pattern 1 has a fine polygonal shape and a polyhedral shape with 24 brilliant cuts.
[0072]
Then, a urethane acrylic resin having translucency was filled in the concave pattern 1 of the mold 2 on the surface of the rotating cylinder 3 with an elastic roll 8 and the excess resin was scraped off. Before the urethane acrylic resin filled in the indented pattern 1 is cured, a synthetic resin sheet 10 of a translucent polyester resin is pressure-bonded by a pressing roll 11 (touch roll), and the synthetic resin sheet 10 side is pressed. Ultraviolet rays 12 are irradiated to cure the filled resin, and the fine polygonal and polyhedral resin molded with the indented pattern 1 is integrated with the synthetic resin sheet 10, and is peeled off by a peeling roll 13 (drawing roll). It peeled from the said metal mold | die 2 and cut with the cutter 14 (refer FIG. 3).
[0073]
In the next step, a rubble (red), sapphire (blue), emerald (green) chromatic and translucent printing layer is applied to the sheet side of the synthetic resin sheet 10 by silk screen printing. Formed by. Then, after a metallic gloss layer using aluminum is provided on the synthetic resin sheet 10 side by a metal vapor deposition method based on a physical vapor deposition method, an acrylic resin is printed on the metallic gloss layer surface by a silk screen printing method to form a synthetic resin layer. Formed. Thereafter, an adhesive layer is provided from the sheet side of the synthetic resin sheet 10 integrated with the ultraviolet curable resin 7 with a double-sided tape type adhesive material, and a fine polygonal and multi-faceted brilliant cut back flat type brilliant cut. A high-luminance molded product 15 having a ruby tone, sapphire tone, and emerald tone was obtained (see FIG. 5).
[0074]
This high brightness molded product 15 of brilliant cut of 24 faces has a finer shape than that of the 12 face round brilliant cut of the first embodiment, becomes more precise, and has a higher degree of brightness. It became beautiful.
[0075]
(Example 3)
As shown in FIG. 1, three molds 2 having a plurality of concave patterns 1 were fitted into a cylindrical shape on the surface of a hollow rotating cylinder 3. The concave pattern 1 has a substantially hemispherical shape polished to an ultra-smooth surface.
[0076]
And the urethane acrylic resin which has translucency was filled in the concave pattern 1 of the metal mold | die 2 on the surface of the said rotation cylinder 3 with the elastic roll 8, and the excess resin was scraped off. Before the urethane acrylic resin filled in the concave pattern 1 is cured, a polyester resin synthetic resin sheet 10 having translucency is pressed by a pressing roll 11 (touch roll), and the synthetic resin sheet 10 side is pressed. The resin 12 is irradiated with ultraviolet rays 12 to cure the filled resin, and a substantially hemispherical resin molded with the indented pattern 1 is integrated with the synthetic resin sheet 10, and the mold 2 is separated by a peeling roll 13 (drawing roll). It peeled more and cut with the cutter 14.
[0077]
In the next step, after providing a metallic gloss layer formed of a plurality of layers of titanium oxide or silicon oxide by metal vapor deposition by physical vapor deposition on the resin molded product side of the synthetic resin sheet 10, Acrylic resin was printed by a silk screen printing method to form a synthetic resin layer. Thereafter, an adhesive layer was provided from the sheet side of the synthetic resin sheet 10 integrated with the ultraviolet curable resin 7 with a double-sided tape type adhesive material to obtain a substantially hemispherical back-flat pearl-like high-intensity molded product ( Not shown). When two back flat pearl-like high-intensity molded products were used and their back surfaces were fixed to each other, a substantially spherical pearl-shaped high-intensity molded product was obtained.
[0078]
【The invention's effect】
The present invention is configured as described above and has the following effects.
[0079]
A high-luminance molded product that can obtain a molded product with high dimensional accuracy and high luminance because it has a polygonal shape, a multi-faceted shape, or a smooth, substantially hemispherical fine shape and also has a metallic luster layer, and a manufacturing method thereof can do.
[Brief description of the drawings]
FIG. 1 is a schematic diagram for explaining an embodiment of a method for producing a high-luminance molded article according to the present invention.
FIG. 2 is an enlarged explanatory view of a main part of the schematic diagram of FIG.
FIG. 3 is a perspective view illustrating a state in which a synthetic resin sheet integrated with an ultraviolet curable resin is cut.
FIG. 4 is a perspective view of a high-luminance molded product obtained by punching one out of a synthetic resin sheet integrated with an ultraviolet curable resin (Example 1).
FIG. 5 is a perspective view of a high-luminance molded product obtained by punching one out of a synthetic resin sheet integrated with an ultraviolet curable resin (Example 2).
[Explanation of symbols]
1 concave pattern
2 Mold
3 Rotating cylinder
7 UV curable resin
8 Elastic roll
10 Synthetic resin sheet
12 UV
15 High brightness molded product

Claims (7)

A molded product made of an ultraviolet curable resin, which is a polygonal shape, a polyhedral shape, or a smooth, substantially hemispherical fine shape and has a metallic luster layer. Using a mold having a concave pattern formed in a polygonal shape, a polyhedral shape, or a smooth, substantially hemispherical fine shape, and filling the concave pattern of the mold with a translucent ultraviolet curable resin. A step of pressure-bonding a synthetic resin sheet having translucency to the ultraviolet curable resin, a step of irradiating ultraviolet rays to cure the ultraviolet curable resin and integrating it with the synthetic resin sheet, and the ultraviolet curable resin A method for producing a high-intensity molded article, comprising: a step of peeling a synthetic resin sheet integrated with the mold from a mold; and a step of providing a metallic luster layer. The manufacturing method of the high-intensity molded article of Claim 2 with which the metal mold | die which has the said concave pattern was arrange | positioned on the surface of the rotation cylinder. The high-luminance molded article according to claim 3, wherein the surface of the rotating cylinder is filled with an ultraviolet curable resin in a concave pattern of a mold by rolling an elastic roll infiltrated with an ultraviolet curable resin. Production method. The manufacturing method of the high-intensity molded article in any one of Claims 2 thru | or 4 which has the process of providing a printing layer in the said synthetic resin sheet. The method for producing a high-luminance molded article according to any one of claims 2 to 5, further comprising a step of coating the metallic luster layer with a synthetic resin layer. The manufacturing method of the high-intensity molded article in any one of Claims 2 thru | or 6 which has the process of providing an adhesion layer in the said synthetic resin sheet.

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