JP2022054932A - Decorative molding - Google Patents

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

The present invention relates to a decorative molded article having a small number of parts and being able to reduce the weight.

Compact containers and lipstick containers that contain cosmetics are required not only to have functionality, but also to have a design that looks good and reflects the product image. In order to meet such demands, for example, unevenness is formed on the surface of the lid of a transparent compact container to give a three-dimensional pattern, and a color pattern is printed from the back surface to the portion corresponding to the three-dimensional pattern. Designed ones are on the market.

Conventionally, as a method of imparting a design that combines such a three-dimensional pattern and a color pattern, unevenness for imparting a three-dimensional pattern is formed on the inner peripheral surface of a mold for molding a lid portion, and this three-dimensional pattern is formed. It is common practice to place a transfer foil with a color pattern corresponding to the pattern in the mold, and to simultaneously apply a three-dimensional pattern and a color pattern to the lid by in-mold molding and integrate them (for example). , Patent Document 1). However, it is difficult to give a fine design to the one using the transfer foil to give the color pattern in this way, and there is a limit to the design that can be realized. Further, there is a problem that it is difficult to align the three-dimensional pattern and the transfer foil, and it is difficult to obtain a desired design.

In order to solve such a problem, the applicant has made a plate-shaped transparent molded body having a three-dimensional pattern formed on the front surface and a decorative resin sheet facing each other on the back surfaces to form a three-dimensional pattern of the transparent molded body. We have already proposed a plate-shaped decorative molded body that is integrated with the design of the decorative resin sheet in a aligned state (see Patent Document 2). This has the excellent advantage that it is possible to easily give a desired design to a molded product by combining a three-dimensional pattern and a pattern at low cost, and the specifications can be flexibly changed. ing.

However, in order to align and integrate the transparent molded body and the decorative resin sheet, the transparent molded body is plate-shaped due to the structure of the attachment device for attaching the decorative resin sheet to the transparent molded body. I needed it. That is, if the rising wall is extended to the edge of the back surface of the transparent molded body, the movement of the pressing head of the sticking device is obstructed by the rising wall, so that the decoration is made up to the base of the rising wall. The resin sheet cannot be attached. Therefore, as for the transparent molded body having the rising wall extended, it was not possible to obtain a transparent molded body having a decorative resin sheet attached to the entire back surface thereof.

In view of the above situation, in order to attach the decorative resin sheet to the transparent molded body having a rising wall at the edge, the following measures are required. That is, as shown in FIG. 11, first, a plate-shaped decorative molded body 30 having a three-dimensional pattern Q formed on its front surface is produced, and the back surface thereof is aligned with the three-dimensional pattern Q of the decorative molded body 30. The decorative resin sheet 35 having the pattern P formed in the above-mentioned manner is attached by the attaching device. Separately from this, a lid frame 33 having a hinge portion 32 in a frame shape surrounding the decorative molded body 30 is prepared, and the decorative molded body 30 is fitted into the lid frame 33. The lid 31 of the compact container 37 (see FIG. 12) was used.

Japanese Unexamined Patent Publication No. 6-344377 Japanese Unexamined Patent Publication No. 2011-177919

However, in this case, in order to obtain the lid body 31, two members, a lid frame body 33 having a hinge portion 32 and a plate-shaped decorative molded body 30, are required, which is troublesome and costly to manufacture. Therefore, even if there is a rising wall such as the hinge portion 32, it is required to develop a decorative molded body made of a single product, which has the same excellent effect as Patent Document 2 without using that portion as a separate member. There is.

The present invention has been made in view of such circumstances, and the decorative molded body can be further reduced in weight and manufacturing cost, and can be given a desired design. The purpose is to provide a decorative molded body having an extended wall.

The present inventors have conducted extensive research to solve the above problems. That is, when the one of Patent Document 2 is used as a lid, the two members of the decorative molded body and the lid frame are configured as a transparent surface plate constituting the decorative molded body with a rising edge. When is adopted, the rising part of the transparent surface plate becomes an obstacle when bonding the decorative resin sheet, and the decorative resin sheet can be bonded up to the edge of the transparent surface plate (at the base of the rising wall). This is because the three-dimensional pattern forming portion of the transparent surface plate and the coloring layer forming portion of the decorative resin sheet cannot be integrated in an accurately aligned state. Therefore, as a result of further research by the present inventors, even if a transparent surface plate having a rising wall extended at the edge is adopted, the decorative resin sheet is bonded to the base of the rising wall. I found out that I could do it, and came up with the present invention.

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 front surface and a decorative resin sheet, wherein the transparent molded body has a rising wall on at least a part of an edge portion on the back surface thereof. Is extended, and the decorative resin sheet is in contact with the base of the rising wall or is attached to the back surface of the transparent molded product with a gap of 3 mm or less from the base of the rising wall. A decorative molded article that allows the decorative resin sheet to be visually recognized by seeing through at least a part of the three-dimensional pattern of the transparent molded article.
[2] On the back surface of the transparent molded product, the ratio (H / L) of the height H of the rising wall to the length L from the root of the rising wall to the opposite edge is the following formula (H / L). The decorative molded article according to [1], which satisfies 1).
0.05 ≦ (H / L) ≦ 1 ... (1)
[3] The rising wall has a protruding portion that protrudes toward the inside of the transparent molded body, and the ratio (T / H) of the protruding length T of the protruding portion to the height H of the rising wall is as follows. The decorative molded article according to [1] or [2], which satisfies the formula (2) of.
0.01 ≦ (T / H) ≦ 1 ... (2)
[4] An opaque layer is provided except for a part of the surface of the transparent molded body, and the decorative resin sheet can be visually recognized from the area where the opaque layer is not provided. [1] The decorative molded body according to any one of [3].
[5] 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 visually recognized by seeing through at least a part of the three-dimensional pattern of the transparent molded body. The decorative molded product according to any one of [1] to [4].

Although the decorative molded product of the present invention is an integrally molded product having a rising wall, a decorative resin sheet is attached to the base of the rising wall, which is very interesting. Moreover, even when the member is used as a member having a rising wall, the number of parts can be reduced and the weight of the whole can be reduced.

It is a perspective view of the container which used the decorative molded body which is one Embodiment of this invention as a lid. It is explanatory drawing which shows the state which the back surface of the said lid body was seen from the bottom. It is explanatory drawing which shows the state which the said lid body was seen from the side. FIG. 2 is a cross-sectional view taken along the line XX of FIG. It is a partially enlarged view explaining the deformation example of the said lid body. (A) is a plan view of the transparent molded body used for the lid, (b) is a front view thereof, and (c) is a view explaining the configuration. (A) is a plan view of the decorative resin sheet used for the lid body, and (b) is a sectional view taken along the line YY. It is a figure explaining the structure of the said lid body. It is a figure explaining the structure of the said lid body. Both (a) and (b) are diagrams illustrating a method for obtaining the above-mentioned decorative molded product. It is a figure explaining the structure of the conventional decorative molded article. It is explanatory drawing of the compact container which used the said decorative molded body as a lid.

Next, a mode for carrying out the present invention will be described. However, the present invention is not limited to the following embodiments.

FIG. 1 is a perspective view in which a decorative molded product according to an embodiment of the present invention is used as a lid 1 in a compact container. Further, FIG. 2 is an explanatory view showing a state in which the back surface of the lid 1 is viewed from below. 3 is a view showing a state in which the lid 1 of FIG. 2 is viewed from a side surface (direction of a white arrow), and FIG. 4 is a cross-sectional view taken along the line XX of the lid 1 of FIG. In these figures, the adhesive layer 9 (see FIG. 7 and below), which will be described later, is not shown.

First, in FIG. 1, reference numeral 2 is a container body of a compact container. As shown in FIG. 2, on the edge of the back surface of the lid 1, a hinge portion 3 (rising wall) for attaching to the container body 2 and a claw 7 (rising wall) for engaging with the container body 2 are provided. The hinge portion 3 is connected to the rear end portion (not shown) of the container body 2 so that the lid 1 can be opened and closed with respect to the container body 2. ..

The lid 1 includes a transparent molded body 5 and a decorative resin sheet 6, and as shown in FIG. 4, the decorative resin sheet 6 is attached to the decorative surface (front surface) on the back surface of the transparent molded body 5. ) Is facing, and is attached via the adhesive layer 9 (see FIG. 7) with a gap W ₁ of 0.3 mm from the hinge portion 3 and a gap W ₂ of 0.3 mm from the claw 7.
The transparent molded body 5 and the decorative resin sheet 6 constituting the lid 1 will be described below.

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

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 schematic cross-sectional view of FIG. 6C, a white pearl-colored opaque layer 4 is formed except for a part of the region C. Is provided by silk printing, and a white pearl-colored three-dimensional pattern A ₁ is formed. The region C is provided in a part of the three-dimensional pattern A and the other part (base portion), and the transparent molded body 5 can be seen through the opposite side only from this region C. Therefore, since the decorative resin sheet 6 attached to the back surface of the three-dimensional pattern A provided with the region C can be visually recognized, the three-dimensional pattern A ₂ exhibiting a hologram-like color can be formed.

In the present invention, "transparent" means that the light transmittance is high and the opposite side can be seen through, and as long as the opposite side can be seen through, so-called "semi-transparent" is also included. Further, "opaque" means that the transmittance of light is low and it is difficult to visually recognize the state on the opposite side, and it is not always necessary that the transmittance is 0%.

The transparent molded body 5 is designed so that the length L of the back surface thereof is 55 mm, and the height H of the hinge portion 3 of the transparent molded body 5 is designed to be 10 mm from the bottom surface (the back surface of the transparent molded body 5). Has been done. As shown in FIG. 4, the length L of the back surface of the transparent molded body 5 is the length from the root of the hinge portion 3 to the opposite end edge of the back surface of the transparent molded body 5. Yes, as in the present embodiment, when the hinge portion 3 and the claw 7 face each other with the entire portion where the decorative resin sheet 6 is to be attached to the back surface of the transparent molded body 5 sandwiched between them, the hinge portion 3 is used. The distance from the root to the root of the claw 7 corresponds to the back surface length L. The hinge portion 3 has a protruding portion 3'protruding from the tip end portion of the hinge portion 3 toward the inside of the transparent molded body 5, and the protruding length T of the protruding portion 3'is 2.5 mm. Designed for.

The greatest feature of the present invention is that the gap W ₁ between the decorative resin sheet 6 and the hinge portion 3 and the gap W ₂ between the decorative resin sheet 6 and the nail 7 are within the range of 0 to 3 mm. be.

The height H (see FIG. 4) of the hinge portion 3 (rising wall) of the transparent molded body 5 is not particularly limited, but is usually 5 to 30 mm, preferably 6 to 10 mm. On the other hand, the height K of the claw 7 (rising wall) is not particularly limited, but is usually 3 to 10 mm, preferably 5 to 7 mm. When the height of the rising wall is within the above range, it becomes excellent in usability and portability as a compact container.

The length L of the back surface of the transparent molded body 5 (the entire portion 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, it becomes excellent in usability and portability as a compact container.

The ratio of the height (height of the rising wall) H of the hinge portion 3 to the length (length from the root of the rising wall to the opposite edge) L of the back surface of the transparent molded body 5 (H / L) is not particularly limited, but is preferably designed to satisfy the following formula (1), more preferably 0.05 to 1, still more preferably 0.07 to 0. It is 2. When the ratio (H / L) is within the above range, the decorative resin sheet 6 is attached more beautifully, and the obtained decorative molded product becomes more interesting. When the transparent molded body 5 has a plurality of rising walls, the above-mentioned H refers to the height of the highest one (in the embodiment of this embodiment, the hinge portion 3).
0.05 ≦ (H / L) ≦ 1 ... (1)

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 obtained decorative molded product becomes more interesting.

The ratio (T / H) of the protrusion length T of the protrusion 3'to the height (height of the rising wall) H of the hinge portion 3 is not particularly limited, but the following equation (2) can be used. It is preferable that it satisfies. When the ratio (T / H) is within the above range, the decorative resin sheet 6 is attached more beautifully, and the obtained decorative molded product becomes more interesting.
0.01 ≦ (T / H) ≦ 1 ... (2)

[Decorative resin sheet]
As shown in the plan view of FIG. 7A, the decorative resin sheet 6 attached to the transparent molded body 5 has a three-dimensional pattern of the transparent molded body 5 on the surface of the hologram sheet 8 based on silver. The pattern B (pink petal pattern portion B ₁ and purple fruit pattern portion B ₂ ) corresponding to a part of A and the region C is formed by offset printing. Then, as shown in FIG. 7B, which is a sectional view taken along the line YY of FIG. 7A, an adhesive layer 9 is provided on the surface of the hologram sheet 8 (the surface having the symbol B), and the adhesive layer 9 is provided. Due to the adhesive force, the decorative resin sheet 6 is attached to the back surface of the transparent molded body 5.

As the adhesive layer 9, various adhesives having transparency can be used. Among them, it is preferable to use an epoxy-based, polyurethane-based, modified acrylic resin-based, or hot-melt-based adhesive in terms of adhesiveness and thin film property between the decorative resin sheet 6 and the transparent molded body 5. Further, from the viewpoint of excellent work efficiency, a transparent double-sided tape or the like may be used instead of the adhesive.

In order to attach the decorative resin sheet 6 to the back surface of the transparent molded body 5 and obtain the lid 1, for example, a decorative resin sheet 6 having an adhesive layer 9 is prepared and schematically shown in FIG. As shown, the three-dimensional pattern A of the transparent molded body 5 and the pattern B of the decorative resin sheet 6 are aligned with each other, and as shown in FIG. 9, _a gap W1 of 3 mm is left from the hinge portion 3 for decoration. The resin sheet 6 is attached to the back surface of the transparent molded body 5 by using the adhesive force of the adhesive layer 9 and using an adhesive device. Thereby, the lid body 1 which is an example of the decorative molded body of the present invention can be obtained.

In the lid 1, the gap W ₁ (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, more preferably 0 to 0. It is within the range of 1 mm. When the gap W ₁ is within the above range, the width of the design becomes wide, for example, the three-dimensional pattern A can be formed on the entire surface of the transparent molded body 5. Further, since the three-dimensional pattern A of the transparent molded body 5 and the pattern B of the decorative resin sheet 6 can be aligned more accurately as set in advance, the lid 1 is more precise and beautiful. The design can be realized.

As shown in FIG. 5, for example, when the hinge portion 3 has a step 3a, the gap W ₁ regards the step 3a as a rising wall and extends from the root thereof to the end of the decorative resin sheet 6. Let it be the length. That is, the length of the gap W ₁ is measured with reference to a portion rising from the surface to which the decorative resin sheet 6 is adhered (step 3a in this embodiment). If the length from the base of the rising wall such as the hinge portion 3 to the end of the decorative resin sheet 6 is non-uniform, the shortest length (the part where the gap width is the narrowest) is the shortest. Let the gap W ₁ be the length).

According to this configuration, the decorative resin sheet 6 is transparent only by leaving a very narrow gap W ₁ within 3 mm from the hinge portion 3 extended to the edge of the back surface of the transparent molded body 5. Since it is attached to almost the entire back surface of the molded body 5, it is possible to form a three-dimensional pattern A at any position on almost the entire surface of the transparent molded body 5, and the degree of freedom in design is increased. There is. Further, since the decorative resin sheet 6 is accurately attached to the transparent molded body 5 at an appropriate position, the design B of the decorative resin sheet 6 accurately corresponds to the region C of the transparent molded body 5. The transparent molded body 5 can be seen through the transparent molded body 5 from the above area C, and the background color of the design B and the decorative resin sheet 6 (hologram sheet 8 based on silver) can be visually recognized, and a beautiful design is realized. ing. That is, on the surface of the lid 1, an opaque white pearl color is used as a base, a white pearl color three-dimensional pattern A ₁ , a plurality of jewel-like three-dimensional patterns A ₂ having different colors, and a silver-based hologram pattern. D (a pattern visually visible through the transparent molded body 5 from the region C in which the three-dimensional pattern A is not formed) appears in a mixed manner, and an interesting design is realized (see FIG. 1).

That is, conventionally, due to the structure of the sticking device, the decorative resin sheet 6 is placed close to the back surface of the transparent molded body 5 having the hinge portion 3 and the rising wall such as the claw 7 up to the root of these rising walls. In the case of sticking, it was difficult to insert the pressing head of the sticking device between these rising walls and operate it normally. Therefore, the decorative resin sheet 6 is attached from a position away from these rising walls, and the decorative resin sheet 6 cannot be attached to the base of these rising walls. However, the present inventors have found that by improving the operation of the pressing head of the sticking device and its shape itself, it is possible to allow the pressing head to enter between these rising walls and operate normally. I came up with the invention.

In the above embodiment, a resin molded product made of PET is used as the transparent molded body 5, but other synthetic resins or the like can also be used. Among them, PET, polymethylmethacrylate resin (PMMA), acrylonitrile / styrene resin (AS), acrylonitrile / butadiene / styrene resin (ABS), and polypropylene (PP) are used in terms of moldability, durability, and lightness. Is preferable. Further, the transparent molded body 5 does not have to be colorless as long as it is transparent, and may be colored.

In the above embodiment, the opaque layer 4 has an opaque white pearl color, but it may be other than the white pearl color. Further, the opaque layer 4 does not have to be composed of only one color, and may have two or more colors. Further, it may be provided by another method instead of silk printing. This makes it possible to realize a more interesting design.

In the above embodiment, the hologram sheet 8 based on silver is used as the base of the decorative resin sheet 6, but the color may be other than silver, and a sheet other than the hologram sheet is used. You may. For example, PET, PMMA, AS, ABS, PP and the like are preferable in terms of moldability, durability and lightness. The thickness thereof is usually 100 to 250 μm.

The design B of the decorative resin sheet 6 may be any of the transparent molded bodies 5 as long as it corresponds to the transparent region C in which the opaque layer 4 is not formed, and is offset printed. However, it may be provided by another method. Further, a non-colored portion may be provided with the intention of showing the base (hologram sheet 8) of the decorative resin sheet 6 as it is. This makes it possible to create even more interesting designs.

In the above embodiment, the opaque layer 4 is provided except for a part C of the surface of the transparent molded body 5, and the area C is set to a part of the three-dimensional pattern A and a part of the other part. However, it is not limited to this. The area C may be set in the entire three-dimensional pattern A, or may not be set in a part other than the three-dimensional pattern A. Further, the opaque layer 4 may not be intentionally provided so that the entire surface of the decorative resin sheet 6 can be visually recognized.

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, and for example, a square shape, a circular shape, an elliptical shape, a pentagonal shape, a hexagonal shape, an octagonal shape, or the like. May be. Even in these shapes, the shortest length from the rising wall of the hinge portion 3 or the like to the end portion of the decorative resin sheet ₆ is defined as the gap W1.

In the above embodiment, in order not to make a gap W ₁ from the root of the hinge portion 3 at all or to make it within 3 mm, as described above, as described above, the root of the hinge portion 3 on the back surface of the transparent molded body 5 is formed. The ratio (H / L) of the height H of the hinge portion 3 to the length L from the case of As shown in 10 (a), the pressing head 10 having a substantially hinged side view may be used. If the shape of the pressing head 10 is devised in this way, the pressing head 10 can be operated without being disturbed by the hinge portion 3, so that a very narrow gap W ₁ as set is left and the decorative resin sheet is formed. 6 can be attached.

Further, for example, as shown in FIG. 10B, the shape of the pressing head 10 of the sticking device may be a shape in which the side view is widened. Even in this shape, since the pressing head 10 can be operated without being disturbed by the hinge portion 3, the decorative resin sheet 6 can be attached with _a very narrow gap W1 as set.

In the present embodiment, the decorative molded product is used as the lid of the compact container (container for accommodating cosmetics), but the present invention is not limited to this. For example, it can be used for a mobile phone cover, an accessory case, or the like, which has a rising wall and is preferably decorated.

INDUSTRIAL APPLICABILITY The present invention has an interesting design and is suitably used as an easy-to-use decorative molded body.

1 lid 3 hinge part 5 transparent molded body 6 decorative resin sheet A three-dimensional pattern L length of the back surface of the transparent molded body H height of the hinge part W ₁ gap

Claims (5)

A decorative molded body comprising a transparent molded body having a three-dimensional pattern formed on its front surface and a decorative resin sheet. The decorative resin sheet is attached to the back surface of the transparent molded product in contact with the base of the rising wall or with a gap of 3 mm or less from the base of the rising wall. A decorative molded article, characterized in that the decorative resin sheet can be visually recognized by seeing through at least a part of the three-dimensional pattern of the transparent molded article. 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 root of the rising wall to the opposite edge is determined by the following formula (1). The decorative molded body according to claim 1.
0.05 ≦ (H / L) ≦ 1 ... (1) The rising wall has a protruding portion that protrudes toward the inside of the transparent molded body, and the ratio (T / H) of the protruding length T of the protruding portion to the height H of the rising wall is the following formula (T / H). The decorative molded product according to claim 1 or 2, which satisfies 2).
0.01 ≦ (T / H) ≦ 1 ... (2) Any 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 can be visually recognized from the region where the opaque layer is not provided. Or the decorative molded body described in item 1. 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 visually recognized by seeing through at least a part of the three-dimensional pattern of the transparent molded body. The decorative molded article according to any one of claims 1 to 4.

Images