Decorative molding

Abstract

To provide a decorative molding which can reduce the weight and manufacture cost, enables application of a desired design, and has a standing wall extending on an edge part.SOLUTION: A lid body 1 includes a transparent molding 5 having a three-dimensional pattern A formed thereon, and a decorative resin sheet 6, in which the transparent molding 5 has a hinge part 3 extending in at least a part of an edge part on its rear face, the decorative resin sheet 6 is brought into contact with a bottom of the hinge part 3 or is stuck to a rear face of the transparent molding 5 with a gap W1 within 3 mm from the hinge part 3, and the decorative resin sheet 6 is made visible so as to be viewed through at least a part of the three-dimensional pattern A of the transparent molding 5.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to an interesting decorated molded article that has a reduced number of parts and can be made lighter. [Background technology]

[0002] Compact containers, lipstick containers, and the like that house cosmetics are required not only to be functional but also to have a good appearance and a design that reflects the product image. To meet such requirements, for example, a transparent compact container is commercially available that has a three-dimensional pattern formed on the surface of the lid by forming projections and depressions, and then has a colored pattern printed on the back side in the area that corresponds to this three-dimensional pattern, creating a single design.

[0003] A common method for imparting such a design combining a three-dimensional pattern and a color pattern is to form a concave-convex pattern on the inner peripheral surface of a mold for forming the lid, place a transfer foil with a color pattern corresponding to the three-dimensional pattern inside the mold, and then use in-mold molding to simultaneously impart the three-dimensional pattern and the color pattern to the lid and integrate them (see, for example, Patent Document 1). However, when using a transfer foil to impart a color pattern in this way, it is difficult to impart a detailed design, and there are limits to the designs that can be realized. Another problem is that it is difficult to align the three-dimensional pattern with the transfer foil, making it difficult to obtain the desired design.

[0004] In order to solve such problems, the present applicant has already proposed a plate-shaped decorated molded body in which a plate-shaped transparent molded body having a three-dimensional pattern formed on its surface and a decorative resin sheet are placed with their back surfaces facing each other and integrated with the three-dimensional pattern of the transparent molded body aligned with the design of the decorative resin sheet (see Patent Document 2). This has the excellent advantage that a desired design combining a three-dimensional pattern and a design can be imparted to the molded body easily and at low cost, and furthermore, the specifications can be flexibly changed.

[0005] However, in order to align and integrate the transparent molded body and the decorative resin sheet, the structure of the attachment device that attaches the decorative resin sheet to the transparent molded body requires the transparent molded body to be plate-shaped. In other words, if a raised wall is provided at the edge of the back surface of the transparent molded body, the movement of the pressing head of the attachment device is obstructed by the raised wall, making it impossible to attach the decorative resin sheet all the way to the base of the raised wall. Therefore, it has not been possible to obtain a transparent molded body with an extended raised wall having a decorative resin sheet attached to its entire back surface.

[0006] In view of the above-described current situation, the following ingenuity was required to attach a decorative resin sheet to a transparent molded body having raised walls at its edges. Specifically, as shown in Fig. 11, first, a plate-shaped decorative molded body 30 having a three-dimensional pattern Q formed on its surface is produced, and then a decorative resin sheet 35 having a pattern P formed in registration with the three-dimensional pattern Q of the decorative molded body 30 is attached to its back surface using an attachment device. Separately, a frame-shaped lid frame 33 having a hinge portion 32 is prepared to surround the periphery of the decorative molded body 30, and the decorative molded body 30 is fitted into the lid frame 33 to form a lid 31 of a compact container 37 (see Fig. 12). [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Publication No. 6-344377 [Patent Document 2] Japanese Patent Application Laid-Open No. 2011-177919 Summary of the Invention [Problem to be solved by the invention]

[0008] However, this requires two components, the lid frame 33 with the hinge portion 32 and the plate-shaped decorative molded body 30, to obtain the lid body 31, which increases the time and cost required for manufacturing. For this reason, there is a need for the development of a single decorative molded body that has the same excellent effects as Patent Document 2, even if it has a rising wall such as the hinge portion 32, without making that part a separate component.

[0009] The present invention has been made in consideration of the above circumstances, and its object is to provide a decorative molded body having a raised wall extending from the edge, which makes the decorative molded body lighter and less costly to manufacture, and allows for the desired design to be applied. [Means for solving the problem]

[0010] The present inventors conducted extensive research to solve the above-mentioned problems. Specifically, the reason for using the product of Patent Document 2 as a lid is to use a two-component structure consisting of a decorative molded body and a lid frame is that if a transparent surface plate constituting the decorative molded body has raised edges, the raised edges of the transparent surface plate get in the way when attaching the decorative resin sheet, making it impossible to attach the decorative resin sheet to the edge of the transparent surface plate (the base of the raised walls), and thus making it impossible to accurately align and integrate the three-dimensional pattern-forming portion of the transparent surface plate and the color layer-forming portion of the decorative resin sheet. Therefore, as a result of further research, the present inventors discovered that even if a transparent surface plate has raised walls extending from the edges, the decorative resin sheet can be attached to the base of the raised walls, leading to the present invention.

[0011] That is, the present invention provides the following [1] to [5]. [1] A decorative molded body comprising a transparent molded body having a three-dimensional pattern formed on its surface and a decorative resin sheet, wherein the transparent molded body has a raised wall extending from at least a portion of the edge of its back surface, and the decorative resin sheet is attached to the back surface of the transparent molded body so as to be in contact with the base of the raised wall or with a gap of 3 mm or less from the base of the raised wall, so that the decorative resin sheet can be seen through at least a portion of the three-dimensional pattern of the transparent molded body. [2] The decorative molded body according to [1], wherein on the back surface of the transparent molded body, the ratio (H / L) of the height H of the rising wall to the length L from the base of the rising wall to the opposite edge satisfies the following formula (1): 0.05≦(H / L)≦1 (1) [3] The decorative molding according to [1] or [2], wherein the rising wall has a protrusion that protrudes toward the inside of the transparent molding, and the ratio (T / H) of the protrusion length T of the protrusion to the height H of the rising wall satisfies the following formula (2): 0.01≦(T / H)≦1 (2) [4] A decorated molded body according to any one of [1] to [3], wherein an opaque layer is provided on the surface of the transparent molded body except for a part of the surface, and the decorative resin sheet is visible from the area where the opaque layer is not provided. [5] A decorated molded body according to any one of [1] to [4], wherein the decorative resin sheet has a pattern corresponding to at least a part of the three-dimensional pattern of the transparent molded body, and the pattern can be seen through at least a part of the three-dimensional pattern of the transparent molded body. [Effects of the Invention]

[0012] The decorative molded article of the present invention is an integrally molded product having a raised wall, but the decorative resin sheet is attached to the base of the raised wall, which is very appealing. Moreover, even when used as a member having a raised wall, the number of parts can be reduced, thereby achieving a reduction in overall weight. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a perspective view of a container using a decorative molded article according to one embodiment of the present invention as a lid. [Figure 2] FIG. 4 is an explanatory diagram showing the rear surface of the lid body as viewed from below. [Figure 3] FIG. 4 is an explanatory diagram showing the lid body as viewed from the side. [Figure 4] XX cross-sectional view of FIG. 2. [Figure 5] 10A and 10B are partially enlarged views illustrating modified examples of the lid body. [Figure 6] 1(a) is a plan view of a transparent molded body used in the lid, FIG. 1(b) is a front view thereof, and FIG. 1(c) is a diagram illustrating the configuration thereof. [Figure 7] 1(a) is a plan view of the decorative resin sheet used in the lid, and FIG. 1(b) is a YY cross-sectional view thereof. [Figure 8] 3A and 3B are diagrams illustrating the configuration of the lid body. [Figure 9] 3A and 3B are diagrams illustrating the configuration of the lid body. [Figure 10] 1(a) and 1(b) are both diagrams illustrating a method for obtaining the above-mentioned decorated molded article. [Figure 11] 10A and 10B are diagrams illustrating the configuration of a conventional decorative molded body. [Figure 12] 10 is an explanatory diagram of a compact container using the above decorative molded body as a lid. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] Next, an embodiment of the present invention will be described, but the present invention is not limited to the following embodiment.

[0015] Fig. 1 is a perspective view of a compact container in which a decorated molded body according to one embodiment of the present invention is used as a lid body 1. Fig. 2 is an explanatory diagram showing the back surface of the lid body 1 as viewed from below. Fig. 3 is a diagram showing the lid body 1 of Fig. 2 as viewed from the side (in the direction of the outlined arrow), and Fig. 4 is a cross-sectional view of the lid body 1 of Fig. 2 taken along line XX. Note that these figures omit the illustration of an adhesive layer 9 (see Fig. 7 and subsequent figures), which will be described later.

[0016] First, in Fig. 1, reference numeral 2 denotes the compact case body. As shown in Fig. 2, a hinge portion 3 (rising wall) for attaching to the case body 2 and a claw 7 (rising wall) for engaging with the case body 2 are extended from the edge of the back surface of the lid body 1, and this hinge portion 3 is connected to the rear end portion (not shown) of the case body 2 so that the lid body 1 can be attached to the case body 2 in an openable and closable manner.

[0017] The lid body 1 comprises a transparent molded body 5 and a decorative resin sheet 6, and as shown in Figure 4, the decorative resin sheet 6 is attached to the back surface of the transparent molded body 5 with its decorated surface (front surface) facing it via an adhesive layer 9 (see Figure 7), leaving a gap W1 of 0.3 mm from the hinge portion 3 and a gap W2 of 0.3 mm from the claw 7. The transparent molded body 5 and the decorative resin sheet 6 that constitute the lid body 1 will be described below.

[0018] [Transparent molding] The transparent molded body 5 is a transparent resin molded product made of polyethylene terephthalate (PET) with a three-dimensional pattern A formed on the surface, and its shape is shown in Figures 6(a) and 6(b). Figure 6(a) is a plan view of the transparent molded body 5, and Figure 6(b) is a front view thereof. Such a resin molded product can be manufactured using, for example, an injection molding machine.

[0019] A three-dimensional pattern A with a plant motif is formed on the surface of the transparent molded body 5, and as shown in the cross-sectional schematic diagram of Figure 6(c), a white pearl-colored opaque layer 4 is provided by silk printing except for a partial region C, forming a white pearl-colored three-dimensional pattern A1. The region C is provided in part of the three-dimensional pattern A and the rest (the base portion), and the transparent molded body 5 is designed so that the opposite side can be seen only from this region C. Therefore, the decorative resin sheet 6 attached to the back surface of the three-dimensional pattern A with the region C provided therein can be seen, and therefore a three-dimensional pattern A2 with a holographic color can be formed.

[0020] In the present invention, "transparent" means that the light transmittance is high and the opposite side can be seen through, and includes so-called "semi-transparent" as long as the opposite side can be seen through. "Opaque" means that the light transmittance is low and it is difficult to see the opposite side, and does not necessarily mean that the transmittance is 0%.

[0021] The transparent molded body 5 is designed to have a back surface length L of 55 mm, and a height H of the hinge portion 3 of the transparent molded body 5 from its bottom surface (the back surface of the transparent molded body 5) is designed to be 10 mm. As shown in FIG. 4 , the back surface length L of the transparent molded body 5 is the length from the base of the hinge portion 3 to the opposite edge of the back surface of the transparent molded body 5. In the present embodiment, when the hinge portion 3 and the claws 7 face each other across the entire area of ​​the back surface of the transparent molded body 5 where the decorative resin sheet 6 is to be attached, the back surface length L corresponds to the distance from the base of the hinge portion 3 to the base of the claws 7. The hinge portion 3 has a protrusion 3' that protrudes from the tip of the hinge portion 3 toward the inside of the transparent molded body 5, and the protrusion length T of the protrusion 3' is designed to be 2.5 mm.

[0022] The greatest feature of the present invention is that the gap W1 between the decorative resin sheet 6 and the hinge portion 3 and the gap W2 between the decorative resin sheet 6 and the claw 7 are within the range of 0 to 3 mm.

[0023] The height H (see FIG. 4) of the hinge portion 3 (standing wall) of the transparent molded body 5 is not particularly limited, but is usually 5 to 30 mm, and preferably 6 to 10 mm. On the other hand, the height K of the claw 7 (standing wall) is also not particularly limited, but is usually 3 to 10 mm, and preferably 5 to 7 mm. When the height of the standing wall is within the above range, the compact container is easy to use and portable.

[0024] The length L of the back surface of the transparent molded body 5 (the entire area to which the decorative resin sheet 6 is to be attached) is not particularly limited, but is preferably 30 to 100 mm. When the length L is in the above range, the compact container has excellent usability and portability.

[0025] The ratio (H / L) of the height H of the hinge portion 3 (height of the rising wall) to the length L of the back surface of the transparent molded body 5 (length from the base of the rising wall to the opposite edge) is not particularly limited, but is preferably designed to satisfy the following formula (1), more preferably 0.05 to 1, and even more preferably 0.07 to 0.2. When the ratio (H / L) is within the above range, the attachment of the decorative resin sheet 6 is more beautiful, and the resulting decorated molded body becomes more attractive. Note that, if the transparent molded body 5 has multiple rising walls, the above H refers to the height of the tallest one (in this embodiment, the hinge portion 3). 0.05≦(H / L)≦1 (1)

[0026] The protrusion length T of the protrusion 3' protruding from the tip of the hinge portion 3 toward the inside of the transparent molded body 5 is not particularly limited, but is preferably 0.5 to 5 mm. When the protrusion length T is within the above range, the decorative resin sheet 6 is attached more beautifully, and the resulting decorated molded body becomes more interesting.

[0027] The ratio (T / H) of the protruding length T of the protruding portion 3' to the height H of the hinge portion 3 (height of the rising wall) is not particularly limited, but preferably satisfies the following formula (2): When the ratio (T / H) is within the above range, the decorative resin sheet 6 is attached more beautifully, and the resulting decorated molded body becomes more attractive. 0.01≦(T / H)≦1 (2)

[0028] [Decorative resin sheet] As shown in the plan view of Fig. 7(a), the decorative resin sheet 6 attached to the transparent molded body 5 has a pattern B (a pink petal pattern portion B1 and a purple fruit pattern portion B2) corresponding to part of the three-dimensional pattern A and area C of the transparent molded body 5 formed by offset printing on the surface of a silver-based hologram sheet 8. Then, as shown in Fig. 7(b), which is a YY cross-sectional view of Fig. 7(a), an adhesive layer 9 is provided on the surface (the surface having pattern B) of the hologram sheet 8, and the decorative resin sheet 6 is attached to the back surface of the transparent molded body 5 by the adhesive force of the adhesive layer 9.

[0029] Various types of transparent adhesives can be used for the adhesive layer 9. Among these, epoxy-based, polyurethane-based, modified acrylic resin-based, and hot melt-based adhesives are preferred in terms of the adhesiveness and thin film properties between the decorative resin sheet 6 and the transparent molded body 5. Furthermore, in terms of excellent work efficiency, transparent double-sided tape or the like may be used instead of an adhesive.

[0030] To obtain the lid 1 by adhering the decorative resin sheet 6 to the back surface of the transparent molded body 5, for example, a decorative resin sheet 6 having an adhesive layer 9 is prepared, and as shown schematically in Fig. 8, the three-dimensional pattern A of the transparent molded body 5 and the pattern B of the decorative resin sheet 6 are aligned, and as shown in Fig. 9, the decorative resin sheet 6 is adhered to the back surface of the transparent molded body 5 using an adhering device, utilizing the adhesive force of the adhesive layer 9, leaving a gap W1 of 3 mm from the hinge portion 3. This allows for the lid 1, which is an example of the decorated molded body of the present invention, to be obtained.

[0031] In the lid 1, the gap W1 (see FIG. 4) between the hinge portion 3 of the transparent molded body 5 and the decorative resin sheet 6 is preferably in the range of 0 to 3 mm, and more preferably in the range of 0 to 1 mm. When the gap W1 is in the above range, the versatility of the design is increased, for example, it is possible to form a three-dimensional pattern A over the entire surface of the transparent molded body 5. Furthermore, the three-dimensional pattern A of the transparent molded body 5 and the design B of the decorative resin sheet 6 can be aligned more accurately as set in advance, thereby enabling the lid 1 to have a more precise and beautiful design.

[0032] 5, when the hinge portion 3 has a step 3a, the step 3a is regarded as a rising wall, and the gap W1 is the length from the base of the step 3a to the end of the decorative resin sheet 6. That is, the length of the gap W1 is measured based on the point (the step 3a in this embodiment) that rises from the surface to which the decorative resin sheet 6 is adhered. Note that when the length from the base of the rising wall of the hinge portion 3 or the like to the end of the decorative resin sheet 6 is not uniform, the shortest length (the length of the point where the gap width is narrowest) is regarded as the gap W1.

[0033] According to this configuration, the decorative resin sheet 6 is attached to almost the entire back surface of the transparent molded body 5 with only a very narrow gap W1 of 3 mm or less from the hinge portion 3 extending from the edge of the back surface of the transparent molded body 5, so that it is possible to form a three-dimensional pattern A anywhere on almost the entire surface of the transparent molded body 5, increasing the degree of freedom in design. Furthermore, because the decorative resin sheet 6 is attached accurately to the transparent molded body 5 in the correct position, the pattern B of the decorative resin sheet 6 accurately corresponds to the area C of the transparent molded body 5, and the pattern B and the background color of the decorative resin sheet 6 (the silver-based hologram sheet 8) can be seen through the transparent molded body 5 from the area C, realizing a beautiful design. That is, the surface of the lid 1 has an opaque white pearl color as its base, and is decorated with a mixture of a white pearl colored three-dimensional pattern A1, a number of different colored jewel-like three-dimensional patterns A2, and a silver-based holographic pattern D (a pattern that can be seen through the transparent molded body 5 from an area C where the three-dimensional pattern A is not formed), resulting in an interesting design (see Figure 1).

[0034] That is, in the past, when adhering a decorative resin sheet 6 to the back surface of a transparent molded body 5 having upstanding walls such as hinge portions 3 and claws 7, by approaching the base of these upstanding walls, it was difficult to insert the pressure head of the adhering device between these upstanding walls and operate normally. For this reason, the decorative resin sheet 6 was applied from a position away from these upstanding walls, and it was not possible to adhere the decorative resin sheet 6 all the way to the base of these upstanding walls. However, the present inventors discovered that by improving the operation and shape of the pressure head of the adhering device itself, it became possible to insert the pressure head between these upstanding walls and operate normally, and thus arrived at the present invention.

[0035] In the above embodiment, a resin molded product made of PET is used as the transparent molded body 5, but other synthetic resins can also be used. Among them, PET, polymethyl methacrylate resin (PMMA), acrylonitrile-styrene resin (AS), acrylonitrile-butadiene-styrene resin (ABS), and polypropylene (PP) are preferred in terms of moldability, durability, and light weight. In addition, the transparent molded body 5 does not have to be colorless as long as it is transparent, and may be colored.

[0036] In the above embodiment, the opaque layer 4 is an opaque white pearl color, but it may be a color other than white pearl color. Moreover, the opaque layer 4 does not have to be made of only one color, but may be made of two or more colors. Furthermore, it may be formed by a method other than silk printing. This makes it possible to realize even more interesting designs.

[0037] In the above embodiment, a silver-based hologram sheet 8 is used as the base of the decorative resin sheet 6, but the color may be other than silver, and a sheet other than a hologram sheet may be used. For example, PET, PMMA, AS, ABS, PP, etc. are preferable in terms of formability, durability, and light weight. The thickness is usually 100 to 250 μm.

[0038] The pattern B of the decorative resin sheet 6 may be any pattern as long as it corresponds to the transparent region C of the transparent molded body 5 where the opaque layer 4 is not formed, and may be formed by a method other than offset printing. Furthermore, a portion may be intentionally left uncolored in order to show the base (hologram sheet 8) of the decorative resin sheet 6 as it is. This allows for even more interesting designs.

[0039] In the above embodiment, the opaque layer 4 is provided on the surface of the transparent molded body 5 except for a partial region C, and the region C is set to cover part of the three-dimensional pattern A and part of the other parts, but this is not limited to this. The region C may be set to cover the entire three-dimensional pattern A, or it may not be set to cover any parts other than the three-dimensional pattern A. Furthermore, the opaque layer 4 may not be provided so that the entire surface of the decorative resin sheet 6 can be seen.

[0040] In the above embodiment, the shape of the lid 1 is a substantially rectangular shape in a plan view, but the shape is not limited thereto and may be, for example, a square, a circle, an oval, a pentagon, a hexagon, an octagon, etc. In these shapes, the shortest length from the rising wall of the hinge portion 3 or the like to the end of the decorative resin sheet 6 is defined as the gap W1.

[0041] In the above embodiment, in order to eliminate the gap W1 from the base of the hinge portion 3 or to keep it within 3 mm, as described above, the ratio (H / L) of the height H of the hinge portion 3 to the length L from the base of the hinge portion 3 to the opposite edge of the back surface of the transparent molded body 5 is set within a predetermined range, and, for example, the shape of the press head of the bonding device is made into a press head 10 that is approximately fan-shaped in side view, as shown in Fig. 10(a). When the shape of the press head 10 is devised in this way, the press head 10 can operate without being obstructed by the hinge portion 3, and the decorative resin sheet 6 can be bonded with the set very narrow gap W1.

[0042] 10(b), the pressure head 10 of the application device may be shaped to widen when viewed from the side. Even with this shape, the pressure head 10 can operate without being hindered by the hinge portion 3, and the decorative resin sheet 6 can be applied with a very narrow gap W1 as set.

[0043] In this embodiment, the decorative molded article is used for the lid of a compact container (a container for storing cosmetics), but the application is not limited to this. For example, it can be used for anything that has a raised wall and is preferable to decorate, such as a mobile phone cover or a small item case. [Industrial Applicability]

[0044] The present invention is suitably used as a decorative molded article that has an interesting design and is easy to use. [Explanation of symbols]

[0045] 1 Lid 3 Hinge part 5 Transparent molding 6 Decorative resin sheet A 3D pattern L: Length of the back surface of the transparent molded body H Hinge height W1 gap

Claims

1. A decorative molded body comprising a transparent molded body having a surface on which a three-dimensional pattern is formed and a back surface on which a flat portion is formed, and a decorative resin sheet, The transparent molded body has a rising wall extending from at least a part of an edge of a back surface thereof, the decorative resin sheet has a pattern corresponding to at least a part of the three-dimensional pattern of the transparent molded body, The decorative resin sheet is attached to a flat portion of the back surface of the transparent molded body so as to be in contact with the base of the rising wall or to be spaced apart from the base of the rising wall by a gap of 3 mm or less, The decorative molded body is characterized in that the pattern of the decorative resin sheet can be visually recognized through at least a part of the three-dimensional pattern of the transparent molded body.

2. A decorative molded body as described in claim 1, wherein on the back surface of the transparent molded body, the ratio (H / L) of the height H of the rising wall to the length L from the base of the rising wall to the opposite edge satisfies the following formula (1). 0.05≦(H / L)≦1...(1)

3. A decorative molded body as described in claim 1 or 2, wherein the rising wall has a protrusion that protrudes toward the inside of the transparent molded body, and the ratio (T / H) of the protruding length T of the protrusion to the height H of the rising wall satisfies the following formula (2). 0.01≦(T / H)≦1...(2)

4. The decorative molded body according to any one of claims 1 to 3, wherein an opaque layer is provided except for a part of the surface of the transparent molded body, and the decorative resin sheet is visible from the area where the opaque layer is not provided.

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