JP5317563B2 - Decorative molded products - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To offer decorative molded articles which have designs full of variety of changes one does not get tired of even they are used for a long time, and, further, can stand up to a prolonged activity of usage. <P>SOLUTION: The decorative molded article is constructed of the molded article 4 and the optical transmission colored layer 8 backed up with the metallic luster layer 7 on its rear surface, which are fixed with the optical transmission section 3 of the molded article 4 and the irregularities formed on the surface of the optical transmission colored layer 8 confronting to each other. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a decorative molded product in which light seen from the light transmitting portion is viewed as light of various colors, of a molded product in which a light transmitting portion through which light is transmitted is partially formed.

  A compact container, a lipstick container, and the like that contain cosmetics are required not only to have functionality but also to have a good design and a design that reflects the product image. In addition, in response to the recent trend of ecologicalization, when the cosmetics that are contained are used up, there are many cases in which only the inner refill container can be replaced with a new one while leaving the outer container as it is. As a result, the same compact container or the like is used for a long period of time, and these containers are required to have a timeless design and durability that can withstand long-term use.

From the point of providing a timeless design, for example, you can get a three-dimensional pattern or moire pattern by overlaying a design plate with many regularly distributed lines or points, and enjoy the change depending on the viewing direction A decorative container has been proposed (see Patent Document 1). In addition, a compact container has been proposed in which a three-dimensional pattern having a depth is obtained by covering the hologram decoration sheet with a top cover (see Patent Document 2).
JP 2003-116630 A JP 2004-198958 A

  However, since it is necessary to regularly distribute a large number of lines or points in the above-mentioned Patent Document 1, there is a restriction in terms of design, and it is difficult to obtain a design with free expression. Moreover, the thing of the said patent document 2 needs to prepare the hologram decorating sheet showing the design to express, and since such a sheet | seat is essential, realization of the design of a very small area is difficult. There's a problem. Furthermore, the hologram decorating sheet may be deteriorated with time by ultraviolet light such as sunlight.

  The present invention has been made in view of such circumstances, and has an excellent decorative molded product that has a design that is rich in change that does not get tired even when used for a long period of time, and can withstand long-term use. The purpose is to provide

In order to achieve the above object, the present invention provides a molded product in which a light transmitting portion that transmits light is partially formed, with a light transmitting colored layer interposed at least on the back surface of the portion where the light transmitting portion is formed. A decorative molded product provided with a metallic luster layer, wherein the light transmitting colored layer surface has facet-cut irregularities formed on the surface facing the light transmitting portion of the molded product, and the metal The surface of the gloss layer is a flat surface, and the light that is incident from the light transmitting portion and reflected by the surface of the light transmitting colored layer is the same as the light that is incident from the light transmitting portion, passes through the light transmitting colored layer, is reflected by the surface of the metallic gloss layer, and is reflected again. The light passing through the transparent colored layer is set so as to be diffusely reflected by the irregularities, and due to the difference in the optical path of the two reflected lights, the color seen from the light transmission part can be seen as a glossy color of various colors. The decorative product is a first gist

  In addition, the present invention is a decorative molding, in particular, in which the light transmission part of the molded product is formed by partially removing the coating layer formed on the front surface or the back surface of the transparent resin molded product. The present invention has a second gist, and the present invention has a third gist of a decorative molded product in which the surface or the back surface of the light transmission part is formed on a fine uneven surface.

  In addition, the present invention has a fourth aspect in which the light-transmitting colored layer includes a transparent resin layer and a transparent colored layer laminated on the surface thereof, and the metallic gloss layer is A fifth aspect is a decorative molded product which is a layer formed by any one of a metal vapor deposition film, a hot stamp foil, and a metallic coating on the back surface of the light transmitting colored layer.

In the present invention, a metallic gloss layer is provided on the back surface of at least the portion where the light transmitting portion is formed of the molded product in which the light transmitting portion that transmits light is partially formed, with a light transmitting colored layer interposed therebetween. The decorative molded product has facet-cut irregularities formed on the surface of the light-transmitting colored layer facing the light-transmitting portion of the molded product, and the metallic gloss layer surface is a flat surface. The light that enters from the light transmitting portion and reflects on the surface of the light transmitting colored layer, and the light that also enters from the light transmitting portion, passes through the light transmitting colored layer, reflects on the surface of the metallic luster layer, and passes through the light transmitting colored layer again. The decorative molded product is set so as to be diffusely reflected by the unevenness, and the color seen from the light transmitting portion is seen as a glossy color having various colors by the difference in the optical path of the both reflected lights. According to this configuration, the light that enters the light transmitting portion from the light transmitting portion and reflects on the surface of the light transmitting colored layer, that is, the light that displays the color of the light transmitting colored layer as it is, and also enters from the light transmitting portion. The light that passes through the light-transmitting colored layer, is reflected on the surface of the metallic luster layer, and passes through the light-transmitting colored layer again, that is, light of a color other than the color reflected on the surface of the light-transmitting colored layer is diffusely reflected by the irregularities. By doing so, various color tones can appear. Moreover, since the color tone varies depending on the viewing angle, a design that is rich in change can be realized. In particular, there is an advantage that a design rich in change with respect to a minimum area that has been difficult to form using a hologram sheet can be realized.

  The glossy colors of various colors described above, that is, the glossy colors of various colors rich in changes in the color tone when viewed from the light transmitting part depending on the viewing angle are incident from the light transmitting part and enter the surface of the light transmitting colored layer. The light reflected by the light-transmitting portion, the light that passes through the light-transmitting colored layer, is reflected on the surface of the metallic luster layer, and passes through the light-transmitting colored layer again is irregularly reflected by the irregularities. It is obtained by. Therefore, while the color tone of the hologram sheet is deteriorated with time due to ultraviolet light such as sunlight in the conventional product using the hologram sheet, such a deterioration is hardly seen in the glossy colors having various colors. It is possible to keep the appearance of the molded product designed with the above-described various glossy colors beautiful over a long period of time.

  In addition, the glossy colors of various colors described above are incident on the surface of the metallic gloss layer through the light transmitting portion and reflected on the surface of the light transmitting colored layer. It appears by the combination of light that is reflected and again passes through the light-transmitting colored layer, and is reflected by the surface of the light-transmitting colored layer and reflected by the surface of the metallic luster layer after passing through the light-transmitting colored layer. Since the place where the light is reflected differs from the light passing through the colored layer, a design having a depth can be realized. Accordingly, it is possible to give a three-dimensional appearance to the appearance of the molded product and enhance a sense of quality.

  Furthermore, in the present invention, the light transmission part of the molded product is formed by partially removing the coating layer formed on the front surface or the back surface of the transparent resin molded product. Since the part from which the coating layer is removed can be determined, this molded product can be shared with other designs, and the production cost can be reduced. In addition, since the design can be easily changed simply by changing the removed portion of the coating layer, there is also an advantage that a wide variety according to the needs can be made in a short period of time.

  Further, in the present invention, when the surface or back surface of the light transmission part is formed on a fine uneven surface, the fine unevenness appears through the light transmission part. Therefore, by combining the fine unevenness and the glossy colors having various colors, it is possible to obtain a decorative molded product having a more precise and interesting design.

  In the present invention, the light-transmitting colored layer is composed of a transparent resin layer and a transparent colored layer laminated on the surface thereof. As the transparent colored layer, a half vapor deposition layer or an opal-like gloss layer is used. And a color that is difficult to realize by coloring the transparent resin can be imparted to the surface of the light-transmitting colored layer. In addition, it has an advantage that it is possible to easily obtain designs of other color tone variations by simply changing the color tone (material) of the transparent colored layer laminated on the transparent resin layer having irregularities formed thereon. .

  In the present invention, the metallic gloss layer is a layer formed on the back surface of the light-transmitting colored layer by any one of a metal vapor deposition film, a hot stamp foil, and a metallic coating. Since it is in close contact with the light-transmitting colored layer, it is possible to reduce the loss of the amount of light that passes through the light-transmitting colored layer, reflects off the surface of the metallic luster layer, and passes again through the light-transmitting colored layer. The glossy color that can be seen from the transmission part has a clearer and more diverse color tone.

  Next, the best mode for carrying out the present invention will be described. However, the present invention is not limited to this embodiment.

  FIG. 1 is a compact container which is the best mode for carrying out the present invention. In the figure, reference numeral 1 denotes a main body, and 2 denotes a lid, and glossy colors of various colors can be seen from a light transmitting portion 3 formed on the surface of the lid 2. A hinge portion projects downward from the rear end portion of the lid body 2 (not shown), and the hinge portion engages with the rear end portion of the main body portion 1, thereby the lid body. 2 opens upward.

As shown in FIG. 2, which is a partial cross-sectional view of the lid body 2, the lid body 2 includes a molded product 4 and a light-transmitting colored layer 8 having a metallic gloss layer 7 on the back surface. The light transmission part 3 and the faceted cut-like irregularities formed on the surface of the light transmission colored layer 8 are fixed in a state of facing each other.

  As shown in FIG. 3, the molded product 4 has a transparent layer 9 made of a transparent acrylic resin formed body and a non-transparent thin film layer 10 made of a white printed layer formed on the back surface thereof (hereinafter referred to as “a transparent cross-sectional thin film layer 10”). The thin film layer 10 is partly removed by a special method described below, and the transparent layer 9 is exposed to form the light transmitting portion 3. . The exposed transparent layer 9 is given a shaded watermark pattern P. A part of the watermark P is shown in FIG.

  The light transmission part 3 and the watermark pattern P can be obtained as follows, for example. That is, first, a mold for shaping the molded product 4 is prepared. Then, the mold is closed with the white transfer film disposed on the side of the mold on which the back surface of the molded product 4 is shaped, and a transparent acrylic resin material that is a molding material of the transparent layer 9 is injected. Molding is performed (in-mold transfer molding). Thereby, as shown in FIG. 5, the molded article 4 in which the white thin film layer 10 is integrally formed on the back surface of the transparent layer 9 can be obtained.

Then, as shown in FIG. 6 (a), the thin film layer 10 in the region A in which the light transmissive portion 3 and the watermark pattern P are to be formed is melted and removed by irradiation with a CO ₂ laser. The light transmitting portion 3 is formed, and the exposed surface of the transparent layer 9 under the thin film layer 10 (upper in the drawing) is removed in a concave shape to form a watermark pattern P having a shadow. The region A is shown in FIG. In this way, the molded product 4 to which the light transmission part 3 and the watermark pattern P are given can be obtained.

Note that the shaded watermark pattern P has, for example, irradiation in which CO ₂ laser irradiation is performed on the region A to form a concave surface by arranging linear melt removal traces densely and deeper than the linear melt removal traces. It can be obtained by combining with irradiation forming a single line consisting of deep linear melt removal traces. That is, the watermark pattern P can be made a shadow pattern with a complex impression by adding a contour line or an emphasis line to a concave surface having delicate unevenness.

Next, as shown in the partial cross-sectional view of FIG. 7, the light-transmitting colored layer 8 has titanium dioxide on the surface of the transparent resin layer 6 made of an acrylic resin having facet-cut irregularities formed by a mold. And a transparent colored layer 5 made of a multilayer thin film of silicon dioxide (hereinafter simply referred to as “TiO ₂ / SiO ₂ thin film”). A metallic luster layer 7 made of hot stamp foil is provided on the back surface of the transparent resin layer 6. The faceted cut is one of the methods for cutting gemstones, and it is a general term for the method of shining the surface of a gemstone by combining it with a combination of geometrical small planes and reflecting the light entering the gemstone several times. It is. In this way, it is possible to obtain a light-transmitting colored layer 8 having unevenness on the front surface and the metallic gloss layer 7 on the back surface.

  And the said cover body 2 can be obtained by combining the said molded article 4 and the said light transmission colored layer 8 in which the metallic luster layer 7 was formed in the back surface.

  According to this structure, as shown in FIG. 8, the light B which entered from the light transmission part 3 of the molded product 4 is reflected by the surface of the transparent colored layer 5 (α), the transparent colored layer 5 and the transparent resin. Light (β) which passes through the layer 6 and is reflected on the surface of the metallic luster layer 7 and again passes through the transparent colored layer 5 and the transparent resin layer 6, and the light (α) and (β) having different color tones is described above. The irregularities formed in the light-transmitting colored layer 8 are irregularly reflected and overlapped portions are formed, so that various overlaps, not only the color tone of (α) and (β), from the light-transmitting portion 3 of the molded product 4 due to the degree of overlap. A glossy color tone can be seen (see FIG. 2).

  That is, when the light (α) reflected on the surface of the transparent colored layer 5 is green (the surface of the transparent colored layer 5 looks green), the light (β) having a color tone other than green is transmitted to the transparent colored layer 5 and the transparent colored layer 5. It passes through the resin layer 6 and is reflected by the surface of the metallic luster layer 7 and passes through the transparent colored layer 5 and the transparent resin layer 6 again. The color tone of light at this time is a color other than green in visible light, that is, red which is a complementary color of green. The green light (α) reflected on the surface of the transparent colored layer 5 and the red light (β) reflected on the surface of the metallic luster layer 7 are irregularly reflected by the irregularities of the light transmitting colored layer 8 and are different from each other. Depending on the amount of color overlap, it appears as a glossy color of various colors such as orange, purple, etc., not just the above green and red. Further, since the unevenness of the light-transmitting colored layer 8 is faceted, the reflected light (α) and (β) is reflected almost totally, and the glossy colors of these various colors are like jewels. Shine and become more beautiful.

  In addition, the watermark pattern P formed on the transparent layer 9 is seen through from the light transmitting portion 3, and the watermark pattern P is, as described above, a subtle wavy pattern shadow applied to the entire surface, and Since it has a sharp outline and a shadow of a line indicating a diamond cut edge, it is rich in shading. Therefore, by combining this shaded watermark pattern P with the glossy colors of various tones generated by the irregularly reflected light, the design seen from the light transmitting portion 3 has an unprecedented and beautiful impression. To give.

The watermark pattern P is formed on the transparent layer 9 on the back side of the molded product 4, and the surface itself of the molded product 4 maintains its original smoothness. Will not be worn, damaged or soiled. The shaded watermark pattern P can be easily formed by irradiation with a CO ₂ laser, and the fine watermark pattern P can be efficiently formed in a short time without incurring a significant increase in cost and production lot restrictions. Can get well.

In addition, since the light-transmitting colored layer 8 is formed by laminating a TiO ₂ / SiO ₂ thin film as the transparent colored layer 5 on the concavo-convex molded surface of the transparent resin layer 6, the surface color tone has an opal-like glossy color. However, the color tone becomes more interesting.

  In addition, since the metallic gloss layer 7 made of hot stamp foil is formed on the back surface of the light transmitting colored layer 8, the light (β) that has passed through the transparent colored layer 5 and the transparent resin layer 6 is reduced in light quantity. Without being lost, it can be reflected on the surface of the metallic luster layer 7 and pass through the transparent colored layer 5 and the transparent resin layer 6 again. Therefore, the design seen from the light transmission part 3 gives a more vivid impression.

  Such a light-transmitting colored layer 8 is set on the back surface of the molded product 4 with the surface on which the irregularities are formed facing each other, and the irregular portions are not directly exposed to the outside. Therefore, the uneven portion of the light transmission colored layer 8 is not worn, damaged or soiled, and the glossy colors having various colors can be maintained for a long period of time.

  In the above example, the transparent member constituting the transparent layer 9 of the molded product 4 can be a transparent member conventionally used for molded products such as containers, and in addition to acrylic resin, for example, polystyrene, ABS resin And polycarbonate. These form the light transmission part 3 and must be transparent in order to show the shadow of the watermark pattern P. However, they do not have to be colorless, and even if they are slightly colored, the opposite side can be seen through. There is no problem if there is.

  Moreover, although the thin film layer 10 formed in the back surface of the said transparent layer 9 used the white printing layer transcribe | transferred from a white transfer film in said example, the material has been conventionally used for decorating a molded article. Any thin film layer 10 can be used. However, in contrast to the transparent layer 9, it must be non-transparent, and various materials such as a hologram sheet, a metal foil, a metal vapor-deposited layer, and a paint coating film are used in addition to a colored film (sheet). In addition to the in-mold transfer molding, an appropriate method such as vapor deposition, sputtering, plating, hot stamping, coating, or the like is adopted as the method for forming the thin film layer 10. The term “non-transparent” means that when the removed portion and the non-removed portion of the thin film layer 10 are compared, it is not transparent to the extent that it can be recognized that there is a difference in appearance. ""

  And in said example, the transparent member which comprises the transparent resin layer 6 of the light transmission colored layer 8 conventionally can be used for the transparent member used for molded articles, such as a container. As such a transparent member, for example, polystyrene, ABS resin, polycarbonate and the like can be cited in addition to acrylic resin. Since they need to transmit light, they must be transparent, but they need not be colorless and may be colored. In addition, in the above example, the method for forming irregularities on the transparent resin layer 6 is by mold processing. However, a method of processing a resin molded product such as laser processing or etching processing can also be used. .

Then, in the above example, the transparent colored layer _5, but using a TiO 2 / SiO ₂ thin film, instead of _this, it is also possible to use any material other than TiO 2 / SiO ₂ thin film. Therefore, since a material that matches the color tone can be freely selected, it is possible to realize a variety of designs.

  In the above example, the metallic luster layer 7 is formed directly on the back surface of the light-transmitting colored layer 8 using a hot stamp foil. However, the present invention is not limited to this, and metallic coating, metal vapor deposition, or the like may be used. . Alternatively, the light-transmitting colored layer 8 may be superposed on a sheet (metal vapor-deposited sheet or the like) having a separately prepared metallic luster layer instead of being directly formed on the light-transmitting colored layer 8. Further, a light transmission colored layer 8 may be disposed so as to be superimposed on a molded product having a metallic gloss layer prepared separately. And these metallic luster layers should just be able to reflect light, and the color tone is not only general gold and silver, but also these metallic luster colors with colors such as pink and yellow. Good. By selecting the color tone of the metallic luster layer in this way, it is possible to realize a more interesting and impressive design.

In addition, in the said molded article 4, instead of removing a part of thin film layer 10 from a back surface and forming the light transmissive part 3, as shown to Fig.9 (a), a part of thin film layer 10 is removed from the surface. Thus, the light transmission part 3 may be formed. In this case, since a fine unevenness | corrugation is made on the surface of the molded article 4, a more three-dimensional impression can be given. Further, when removing a part of the thin film layer 10 formed on the transparent layer 9, it is only necessary to be able to form the light transmitting portion 3, and it is not always necessary to form the watermark pattern P on the surface of the transparent layer 9. In this case, there is an advantage that a process and cost for forming the watermark pattern P are not required. And in removing the part of the thin film layer 10 formed in the transparent layer 9, in the above example, the CO ₂ laser is irradiated, but by other methods such as partially dissolving coating or vapor deposition. These methods can be freely selected according to the design, manufacturing process, manufacturing cost, etc. to be expressed.

  Further, in the molded article 4, instead of using the transparent layer 9 having the thin film layer 10, a non-transparent layer 11 having no thin film layer can be used. As shown in FIG. A gap is provided in a part, and this gap can be used as the light transmission portion 3. In this case, the glossy colors of various colors described above can be seen directly without passing through the transparent layer 9, so that an impressive design can be made, and the transparent layer 9 is provided with a thin film layer 10 or a part thereof. Since a process to be removed is not required, process saving and cost saving can be realized. As the member constituting the non-transparent layer 11, the transparent member used for the transparent layer 9 may be colored so as to be non-transparent, or other non-transparent member. Here, the term “non-transparent” means that the opposite side cannot be seen through, and includes that which allows some light to pass through.

  Further, in the above example, as the light-transmitting colored layer 8 used on the back surface side of the lid body 2, a layer provided with the transparent resin layer 6 and the transparent colored layer 5 as shown in FIG. 7 is used. If the resin layer 6 is colored in a desired color tone, it is not necessary to color the surface of the transparent resin layer 6, so the transparent colored layer 5 may not necessarily be laminated, and may be composed only of the transparent resin layer 6. it can. In this case, the step of laminating the transparent colored layer 5 can be omitted, and the cost can be reduced.

  FIG. 1 shows the case where the present invention is applied to a compact container, but the molded product to which the present invention is applied is not limited to the container, and various resin molded products, or other members are combined with the resin molded products. It can be applied to molded products. For example, it can be widely applied to mobile phones, stationery, home appliances, various cases, and the like.

It is explanatory drawing of one Example of this invention. It is a longitudinal cross-sectional view of the cover body in the said Example. It is a longitudinal cross-sectional view of the molded article in the said Example. It is explanatory drawing of the watermark pattern in the said Example. It is explanatory drawing of the formation method of the light transmissive part and watermark pattern in the said Example. (A) is explanatory drawing of the formation method of the light transmissive part and watermark pattern in the said Example, (b) is a top view of the light transmissive part and watermark pattern. It is a longitudinal cross-sectional view of the light transmission colored layer and metallic luster layer in the said Example. It is explanatory drawing of the glossy color of the various color tone in the said Example. (A), (b) is explanatory drawing of the formation method of the light transmissive part in the other Example of this invention.

Explanation of symbols

3 Light transmission part 4 Molded product 7 Metal gloss layer 8 Light transmission colored layer

Claims (5)

A decorative molded product in which a metallic luster layer is provided on a back surface of at least a portion where the light transmitting portion is formed through a light transmitting colored layer of a molded product in which a light transmitting portion that transmits light is partially formed. The surface of the light-transmitting colored layer has facet-cut irregularities formed on the surface facing the light-transmitting portion of the molded product, and the surface of the metallic gloss layer is a flat surface. The light incident on the light transmitting colored layer and reflected from the surface of the light transmitting colored layer, and the light incident on the light transmitting portion, passing through the light transmitting colored layer, reflected on the surface of the metallic luster layer, and again passing through the light transmitting colored layer are A decorative molded product which is set so as to be diffusely reflected, and the color seen from the light transmitting portion is seen as a glossy color of various colors due to the difference in the optical paths of the two reflected lights.   The decorative molded product according to claim 1, wherein the light transmitting portion of the molded product is formed by partially removing a coating layer formed on the front surface or the back surface of the transparent resin molded product.   The decorative molded product according to claim 2, wherein a surface or a back surface of the light transmission part is formed on a fine uneven surface.   The decorative molded product according to any one of claims 1 to 3, wherein the light-transmitting colored layer is composed of a transparent resin layer and a transparent colored layer laminated on the surface thereof.   The decoration according to any one of claims 1 to 4, wherein the metallic gloss layer is a layer formed on the back surface of the light-transmitting colored layer by any one of a metal vapor deposition film, a hot stamp foil, and a metallic coating. Molding.

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