阅读说明：本技术 嵌入成型容器的制造方法以及嵌入成型容器 (Method for manufacturing insert molded container and insert molded container ) 是由 东和位 于 2018-07-02 设计创作，主要内容包括：本发明提供一种嵌入成型容器的制造方法以及嵌入成型容器。通过具有将透明的合成树脂制的盖部件(50)安装在一次容器10的设置有蒸镀层(13)的部分的外侧面的盖安装工序、使盖部件(50)与浇口(61)对置而将一次容器(10)配置在模具(60)的内部的配置工序、从浇口(61)注塑透明的合成树脂材料(70)的嵌入成型工序的嵌入成型容器的制造方法,制造在一次容器(10)的外侧一体地设置有透明的合成树脂制的二次容器(20),并二次容器(20)具有浇口痕迹(23),且在浇口痕迹(23)的周边区域处的一次容器(10)的外侧面设置有蒸镀层(13)的嵌入成型容器(1)。(The invention provides a method for manufacturing an insert molded container and an insert molded container. An insert molding container (1) is manufactured by a cover mounting process of mounting a transparent synthetic resin cover member (50) on the outer side surface of a portion of a primary container (10) where a vapor deposition layer (13) is provided, a disposing process of disposing the primary container (10) inside a mold (60) with the cover member (50) facing a gate (61), and an insert molding process of injecting a transparent synthetic resin material (70) from the gate (61), wherein a transparent synthetic resin secondary container (20) is integrally provided on the outer side of the primary container (10), the secondary container (20) has a gate mark (23), and the vapor deposition layer (13) is provided on the outer side surface of the primary container (10) in the peripheral region of the gate mark (23).)

1. A method for manufacturing an insert molded container, characterized in that a double-walled insert molded container having a secondary container of transparent synthetic resin is integrally provided on the outer side of a primary container so as to cover the outer side surface of the primary container,

the method for manufacturing the insert molding container comprises the following steps:

a lid mounting step of mounting a lid member made of a transparent synthetic resin covering a part of the deposition layer on an outer surface of a portion of the primary container having the deposition layer on the outer surface;

a placement step of placing the primary container in a mold with the cap member facing the gate; and

and an insert molding step of integrally forming the secondary container outside the primary container by injecting a transparent synthetic resin material into the mold from the gate.

2. The manufacturing method of an insert molding container according to claim 1,

the primary container has a side wall and a bottom wall,

the whole outer side surface of the bottom wall is provided with the evaporation layer,

in the cover attaching step, the cover member is attached to a central portion of the bottom wall.

3. The manufacturing method of an insert molding container according to claim 1 or 2,

the cap member is formed of a synthetic resin material having the same material as a synthetic resin material forming the secondary container.

4. The manufacturing method of an insert molding container according to any one of claims 1 to 3,

the primary container is a container provided with the vapor deposition layer on the entire outer side surface.

5. The manufacturing method of an insert molding container according to any one of claims 1 to 4,

the secondary container is formed of a polyester synthetic resin material.

6. The manufacturing method of an insert molding container according to any one of claims 1 to 5,

the evaporation layer is an aluminum evaporation layer.

7. The manufacturing method of an insert molding container according to any one of claims 1 to 6,

the primary container is formed of a synthetic resin material having a melting point higher than that of the synthetic resin material forming the secondary container.

8. The manufacturing method of an insert molding container according to any one of claims 1 to 7,

the primary container is an injection molded article.

9. An insert molding container of a double-wall structure in which a transparent synthetic resin secondary container covering the outer surface of a primary container is integrally provided on the outer surface of the primary container,

the secondary container has a gate mark that is formed on the secondary container,

a vapor-deposited layer is provided on an outer side surface of the primary container at a peripheral region of the gate mark.

10. The insert molding container according to claim 9,

the primary container has a side wall and a bottom wall,

the gate vestige is opposed to a central portion of the bottom wall,

the entire outer side surface of the bottom wall is provided with the evaporation layer.

11. The insert molding container according to claim 9 or 10,

the evaporation layer is arranged on the whole outer side surface of the primary container.

12. The insert molding container according to any one of claims 9 to 11,

the secondary container is formed of a polyester synthetic resin material.

13. The insert molding container according to any one of claims 9 to 12,

the evaporation layer is an aluminum evaporation layer.

14. The insert molding container according to any one of claims 9 to 13,

the primary container is formed of a synthetic resin material having a melting point higher than that of the synthetic resin material forming the secondary container.

15. The insert molding container according to any one of claims 9 to 14,

the primary container is an injection molded article.

Technical Field

The present invention relates to an insert molding container having a double-wall structure in which a transparent synthetic resin secondary container covering an outer surface of a primary container is integrally provided on an outer side of the primary container, and a method for manufacturing the same.

Background

Conventionally, there has been known an insert molding container of a double-wall structure in which a transparent synthetic resin secondary container covering an outer surface of a primary container is integrally provided on an outer side of the primary container. Such an insert molded container having a double-wall structure can exhibit an excellent optical decorative function, and therefore is used for applications requiring differentiation of products by packaging with a high-grade feeling, such as a container for storing cosmetics.

The insert molding container is formed into the double-walled structure by an insert molding method in which a transparent synthetic resin material is injected into a mold from a gate of the mold in a state in which a primary container is disposed as an insert member in the mold (see, for example, patent document 1).

Disclosure of Invention

Technical problem

In the above-described conventional insert molded container, by providing a deposition layer having a gloss such as aluminum deposition on the outer surface of the primary container, the deposition layer can be provided with a gloss having a more transparent feeling, and a more high-grade and highly beautiful container can be obtained.

However, when insert molding is performed using a primary container provided with a vapor-deposited layer as an insert member, there are the following problems: the heat and pressure of the molten synthetic resin material injected into the mold from the gate melt the outer surface of the peripheral region of the gate of the primary container and cause the outer surface to flow in the direction away from the gate together with the vapor deposition layer, which causes the portion of the vapor deposition layer that has fallen off in the peripheral region of the gate of the primary container, thereby deteriorating the appearance.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an insert molded container which prevents a vapor deposition layer in a primary container from coming off, and which is more beautiful.

Technical scheme

The method for manufacturing an insert molded container according to the present invention is a method for manufacturing an insert molded container having a double-wall structure in which a transparent synthetic resin secondary container covering an outer surface of a primary container is integrally provided on an outer side of the primary container, the method comprising: a lid mounting step of mounting a lid member made of a transparent synthetic resin covering a part of the deposition layer on an outer surface of a portion of the primary container having the deposition layer on the outer surface; a placement step of placing the primary container in a mold with the cap member facing the gate; and an insert molding step of integrally forming the secondary container outside the primary container by injecting a transparent synthetic resin material into the mold from the gate.

In the above configuration, the method of manufacturing an insert molded container of the present invention preferably includes: the primary container has a side wall and a bottom wall, the vapor-deposited layer is provided on an entire outer surface of the bottom wall, and the lid member is attached to a central portion of the bottom wall in the lid attaching step.

In the above configuration, the method of manufacturing an insert molded container of the present invention preferably includes: the cap member is formed of a synthetic resin material having the same material as a synthetic resin material forming the secondary container.

In the above configuration, the method of manufacturing an insert molded container of the present invention preferably includes: the primary container is a container provided with the vapor deposition layer on the entire outer side surface.

In the above configuration, the method of manufacturing an insert molded container of the present invention preferably includes: the secondary container is formed of a polyester synthetic resin material.

In the above configuration, the method of manufacturing an insert molded container of the present invention preferably includes: the evaporation layer is an aluminum evaporation layer.

In the above configuration, the method of manufacturing an insert molded container of the present invention preferably includes: the primary container is formed of a synthetic resin material having a melting point higher than that of the synthetic resin material forming the secondary container.

In the above configuration, the method of manufacturing an insert molded container of the present invention preferably includes: the primary container is an injection molded article.

An insert molding container of a double-wall structure in which a transparent synthetic resin secondary container covering an outer surface of a primary container is integrally provided on an outer side of the primary container, wherein the secondary container has a gate mark, and a vapor-deposited layer is provided on the outer surface of the primary container in a peripheral region of the gate mark.

In the above configuration, the insert molding container of the present invention is preferably: the primary container has a side wall and a bottom wall, the gate mark is opposed to a central portion of the bottom wall, and the vapor-deposited layer is provided on an entire outer side surface of the bottom wall.

In the above configuration, the insert molding container of the present invention is preferably: the evaporation layer is arranged on the whole outer side surface of the primary container.

In the above configuration, the insert molding container of the present invention is preferably: the secondary container is formed of a polyester synthetic resin material.

In the above configuration, the insert molding container of the present invention is preferably: the evaporation layer is an aluminum evaporation layer.

In the above configuration, the insert molding container of the present invention is preferably: the primary container is formed of a synthetic resin material having a melting point higher than that of the synthetic resin material forming the secondary container.

In the above configuration, the insert molding container of the present invention is preferably: the primary container is an injection molded article.

Technical effects

According to the present invention, it is possible to prevent the vapor deposition layer in the primary container from falling off, and to provide a more beautiful insert molded container.

Drawings

Fig. 1 is a half sectional view of an insert molding container as an embodiment of the present invention.

Fig. 2 is a sectional view of a cosmetic container using the insert-molded container shown in fig. 1.

Fig. 3 is a half sectional view showing the primary container and the lid member having a vapor-deposited layer on the outer surface.

Fig. 4 (a) is a cross-sectional view of the primary container to which the lid member is attached in the lid attachment step, and fig. 4 (b) is a bottom view of the same container.

Fig. 5 is a sectional view showing a state in which the primary container to which the cap member is attached is disposed in the mold in the disposing step.

Fig. 6 is a sectional view showing a state in which a synthetic resin material is injected from a gate into the interior of a mold in an insert molding process.

Fig. 7 is a sectional view showing a state after the end of the insert molding process.

Description of the symbols

1 insert molding container

2 mouth part

2a groove part

2b external screw thread

3 main body part

4 bottom

10 Primary container

11 side wall

12 bottom wall

13 vapor deposition layer

14 through hole

20 Secondary container

21 side wall

22 bottom wall

23 gate mark

24 convex part

30 refill container

31 refill container body

32 cosmetic preparation

33 closure

34 locking part

40 cover body

41 internal thread

50 cover part

50a lid body portion

50b shaft part

60 mould

61 pouring gate

62 lower die

63 Upper die

63a cutting die

63b cutting die

63c column part

64 mold cavity

70 synthetic resin material

Detailed Description

The present invention will be described in more detail below with reference to the accompanying drawings.

An insert-molded container 1 according to an embodiment of the present invention shown in fig. 1 is an insert-molded article having a double-wall structure in which a transparent synthetic resin secondary container 20 covering the outer surface of a primary container 10 is integrally provided on the outer side of the primary container 10. The insert molding container 1 includes a cylindrical mouth portion 2, a cylindrical body portion 3 continuous with the mouth portion 2, and a circular bottom portion 4 closing a lower end of the body portion 3, and the entire insert molding container 1 has a jar shape (can shape).

The insert molded container 1 can be used as a cosmetic container for containing, for example, cosmetics as contents. Fig. 2 shows a case where the insert molding container 1 is configured as a refill type (replacement type) cosmetic container that accommodates a refill container 30 filled with a cosmetic product in the inside thereof and closes the mouth portion 2 with a lid body 40.

The refill container 30 has the following configuration: a cosmetic 32 is filled into a bottomed cylindrical refill container body 31 having a shape corresponding to the inner surface of the insert molded container 1, and a sheet-like closing body 33 is fixed to and sealed at the opening by a method such as adhesion. The refill container body 31 can be formed using, for example, a polypropylene resin. A claw-shaped locking portion 34 is provided on the outer periphery of the upper end portion of the refill container body 31, and the refill container 30 is detachably held in the insert molded container 1 by the locking portion 34 being engaged with a groove portion 2a provided on the outer periphery of the upper end portion of the mouth portion 2.

The lid body 40 is formed into a cylindrical shape having an outer diameter corresponding to the outer diameter of the refill container body 31 by polypropylene resin, and the lid body 40 is detachably attached to the insert molded container 1 by screwing the female screw 41 provided on the inner peripheral surface thereof with the male screw 2b provided on the outer peripheral surface of the mouth portion 2.

By detaching the lid 40 from the insert molded container 1 and peeling off the closing body 33 to unseal the refill container body 31, the cosmetic 32 can be taken out from the refill container body 31 and used. After use, the refill container body 31 can be closed and stored by attaching the lid body 40 to the insert molded container 1. When all the cosmetic products 32 are taken out and the refill container body 31 is emptied, the empty refill container body 31 is taken out from the insert molding container 1, and a new refill container 30 is attached to the insert molding container 1, whereby the insert molding container 1 can be reused.

Note that, the content may be directly stored in the insert molded container 1 without using the refill container 30.

As shown in fig. 1, the primary container 10 is a bottomed cylindrical shape having a cylindrical side wall 11 and a bottom wall 12 closing a lower end of the side wall 11, the side wall 11 constituting an inner peripheral portion of the body portion 3 of the insert molded container 1, and the bottom wall 12 constituting an upper surface side portion of the bottom portion 4 of the insert molded container 1.

In the present embodiment, the primary container 10 is an injection-molded article of polycarbonate formed by injection-molding Polycarbonate (PC).

The primary container 10 is not limited to a container made of polycarbonate, and may be formed using other synthetic resin materials, glass, metal, and other materials. In the case where the primary container 10 is formed using a synthetic resin material, the container may be formed by blow molding, not only by injection molding of the synthetic resin material.

A deposition layer 13 is provided on the entire outer surface of the primary container 10. That is, the vapor deposition layer 13 is provided on the entire outer surface facing the outside of the side wall 11 and the entire outer surface facing the outside of the bottom wall 12, and the entire outer surface of the primary container 10 is covered with the vapor deposition layer 13. The deposition layer 13 is not provided on the inner surface of the primary container 10, and the polycarbonate is directly exposed.

In the present embodiment, the vapor deposition layer 13 provided on the outer surface of the primary container 10 is an aluminum vapor deposition layer. By providing the vapor deposition layer 13 as an aluminum vapor deposition layer, the outer surface of the primary container 10 is decorated to have a glossy mirror surface as a whole.

The secondary container 20 is a bottomed cylindrical shape having a cylindrical side wall 21 and a bottom wall 22 closing a lower end of the side wall 21, the side wall 21 constituting an outer peripheral side portion of the body portion 3 of the insert molded container 1, and the bottom wall 22 constituting a lower surface side portion of the bottom portion 4 of the insert molded container 1.

The secondary container 20 is a transparent synthetic resin container formed by injection molding a polyester-based synthetic resin material to the outside of the primary container 10 in insert molding using the primary container 10 as an insert member. In the present embodiment, the synthetic resin material forming the secondary container 20 is PCTA resin which is one of saturated polyester resins. Here, the secondary container 20 may be transparent enough to allow the vapor deposition layer 13 on the outer surface of the primary container 10 to be seen through the secondary container 20, and may be translucent, for example.

The synthetic resin material forming the secondary container 20 is preferably a synthetic resin material having a lower melting point than the synthetic resin material forming the primary container 10. This can prevent the primary container 10, which is an insert member, from being melted by the heat of the synthetic resin material injected into the mold in a melted state by forming the secondary container 20.

The bottom wall 22 of the secondary container 20 has a substantially cylindrical gate mark 23 protruding from the lower surface of the bottom wall 22 at its central portion (central position). The gate mark 23 is a mark generated when the secondary container 20 is injection molded by insert molding using the primary container 10 as an insert part, and the synthetic resin material in the gate remains in a portion of the secondary container 20 corresponding to the gate of the mold. The gate mark 23 faces a central portion (center position) of the bottom wall 12 of the primary container 10. That is, the peripheral region of the gate mark 23 of the bottom wall 12 of the primary container 10 is a portion where the deposition layer 13 is provided. The bottom wall 22 has a shape in which an inner portion is slightly recessed upward with respect to an outer peripheral edge thereof, and the gate mark 23 protrudes from a lower surface of the bottom wall 22 within the range of the recess.

In the insert molding, the mouth portion 2 is provided to be molded together with the secondary container 20 and integrally connected to the upper end of the side wall 21 of the secondary container 20. The central portion of the bottom wall 12 of the primary container 10 is a through hole 14, and a projection 24 projecting from the upper surface of the bottom wall 22 of the secondary container 20 is fitted into the through hole 14.

The insert molding container 1 of the present embodiment having the above-described configuration has a double-wall structure in which the primary container 10 having the glossy vapor-deposited layer 13 on the outer surface thereof is integrally provided with the transparent synthetic resin-made secondary container 20 covering the outer surface of the primary container 10, and therefore the glossy vapor-deposited layer 13 provided on the outer surface of the primary container 10 can be seen through the secondary container 20. Further, the vapor deposition layer 13 provided on the outer surface of the primary container 10 becomes a vapor deposition layer having a gloss and a more transparent feeling due to the optical decoration function of the transparent secondary container 20. In the insert molded container 1 of the present embodiment, the deposition layer 13 is provided on the entire outer surface of the bottom wall 12, which is the peripheral region of the gate mark 23 of the primary container 10. Therefore, the insert molded container 1 of the present embodiment has no portion where the deposition layer 13 is removed in the gate peripheral region of the primary container 10, and the entire body portion 3 and the bottom portion 4 thereof are highly beautiful portions having a high quality feeling.

Thus, in the insert molded container 1 of the present embodiment, in the double-walled structure in which the transparent synthetic resin secondary container 20 covering the outer surface of the primary container 10 is integrally provided outside the primary container 10 having the glossy vapor-deposited layer 13 provided on the outer surface, the vapor-deposited layer 13 is provided also in the peripheral region of the gate mark 23 of the primary container 10, so that the primary container 10 can be a container in which the vapor-deposited layer 13 does not fall off in the peripheral region of the gate mark 23, and the appearance of the insert molded container 1 can be improved.

In addition, in the insert molded container 1 of the present embodiment, by using a polyester-based synthetic resin material as the synthetic resin material forming the secondary container 20, the secondary container 20 can be made a container having higher transparency, and the appearance of the insert molded container 1 can be improved.

In the insert molded container 1 of the present embodiment, the gate mark 23 is opposed to the central portion of the bottom wall 12 of the primary container 10, and the vapor-deposited layer 13 is provided on the entire outer surface of the bottom wall 12, so that the gate mark 23 can be provided on the bottom portion 4 which is not visible from the outside, and the appearance of the bottom portion 4 can be improved.

In addition, in the insert molded container 1 of the present embodiment, the vapor-deposited layer 13 is provided on the entire outer surface of the primary container 10, so that the appearance of the insert molded container 1 can be more effectively improved.

In addition, in the insert molded container 1 of the present embodiment, since the aluminum vapor deposition layer is used as the vapor deposition layer 13, the primary container 10 can be a container having gloss, and the appearance of the insert molded container 1 can be more effectively improved.

The insert molded container 1 of the present embodiment having the above-described configuration can be manufactured by the method of manufacturing an insert molded container according to an embodiment of the present invention. A flow of manufacturing the insert molded container 1 by the insert molded container manufacturing method according to the embodiment of the present invention will be described below with reference to fig. 3 to 6.

First, as shown in fig. 3, a primary container 10 having a deposition layer 13 on the outer surface and a lid member 50 are prepared.

The lid member 50 is formed of a synthetic resin material (PCTA resin) of the same material as the synthetic resin material forming the secondary container 20, and has a circular and dish-shaped lid body portion 50a and a columnar shaft portion 50b protruding from the center of the lid body portion 50 a. The cap body portion 50a has a diameter smaller than the bottom wall 12 of the primary container 10, and the shaft portion 50b has a diameter slightly smaller than the inner diameter of the through hole 14 of the primary container 10.

Next, as shown in fig. 4 (a), the shaft portion 50b of the lid member 50 is inserted into the through hole 14 of the primary container 10 from the outside, and the lid member 50 is attached to the primary container 10 (lid attaching step). When the cap member 50 is attached to the primary container 10, as shown in fig. 4 (b), the central portion of the outer surface of the bottom wall 12 of the primary container 10, that is, the central portion of the vapor deposition layer 13 provided on the bottom wall 12 is covered with the cap body portion 50 a. Since the shaft portion 50b is inserted into the through hole 14 in a press-fitted state, the lid member 50 is held by the bottom wall 12.

When the cap member 50 is attached to the primary container 10, the primary container 10 with the cap member 50 attached thereto is then disposed as an insert member inside the insert molding die 60 (disposing step). In a state where the primary container 10 is placed in the mold 60 and held by the mold 60, the cap body portion 50a of the cap member 50 attached to the bottom wall 12 of the primary container 10 faces the gate 61 so that the center position thereof coincides with the axial center of the gate 61 of the mold 60.

The mold 60 includes a lower mold 62 and an upper mold 63, a part of the upper mold 63 is a split mold 63a and a split mold 63b which are left and right separable, and the primary container 10 is fitted into and held by a columnar portion 63c of the upper mold 63 provided at the axial center of the split mold 63a and the split mold 63 b. The mold 60 is not limited to the mold having the above-described configuration, and if the mold can perform insert molding using the primary container 10 as an insert member, a mold having another configuration may be used.

When the primary container 10 with the cap member 50 attached thereto is disposed as an insert member inside the mold 60 and the mold 60 is closed, as shown in fig. 6, a transparent synthetic resin material (PCTA resin) 70 for forming the secondary container 20 is injected from the gate 61 toward the inside of the mold 60, that is, toward the cavity 64 formed between the outer surface of the primary container 10 and the inner surface of the mold 60, and insert-molded (insert molding step). In the insert molding, when the synthetic resin material 70 injected is cured in the cavity 64, the secondary container 20 is integrally formed outside the primary container 10 as shown in fig. 7.

Here, since the cap member 50 is provided at a portion of the primary container 10 facing the gate 61, the synthetic resin material 70 injected from the gate 61 into the mold 60 during the insert molding flows into a corner of the cavity 64 after hitting the cap body portion 50a of the cap member 50, and does not directly flow into the primary container 10 and the vapor deposition layer 13. Therefore, the cap member 50 can protect the primary container 10 and the vapor deposition layer 13 from the heat and pressure of the molten synthetic resin material 70 injected from the gate 61 into the mold 60. Thus, by insert molding in a state where the cap member 50 is attached to the portion of the primary container 10 facing the gate 61, the primary container 10 and the vapor deposition layer 13 are protected from the heat and pressure of the molten synthetic resin material 70, and it is possible to prevent the outer side surface of the peripheral region of the gate 61 of the primary container 10 from being melted and flowing in a direction away from the gate 61 together with the vapor deposition layer 13, thereby preventing the occurrence of a portion where the vapor deposition layer 13 is detached in the peripheral region of the gate 61 of the primary container 10.

The lid member 50 is formed of a synthetic resin material of the same material as the synthetic resin material 70 forming the secondary container 20, and is melted by heat and pressure at the time of insert molding, and is integrated with the secondary container 20. Therefore, the bottom wall 22 of the secondary container 20 has high transparency in the bottom 4 of the insert molded container 1, and hence the appearance is not spoiled. The shaft portion 50b of the lid member 50 is a projection 24 formed integrally with the secondary container 20 of the insert-molded container 1.

Thus, according to the method of manufacturing an insert molded container of the present embodiment, when the cap member 50 is attached to the portion of the primary container 10 facing the gate 61 and insert molded, the primary container 10 and the vapor deposition layer 13 in the peripheral region of the gate 61 are protected by the cap member 50, and therefore, the portion where the vapor deposition layer 13 is removed can be prevented from being generated in the peripheral region of the gate 61 of the primary container 10, and the insert molded container 1 having a high aesthetic appearance can be manufactured.

In the method of manufacturing an insert molded container according to the present embodiment, since the gate 61 is opposed to the central portion of the bottom wall 12 of the primary container 10 and the lid member 50 is attached, the synthetic resin material 70 forming the secondary container 20 can be uniformly filled from the gate 61 into the inside of the mold 60 to the outside of the primary container 10, and the bottom wall 12 can be prevented from having a portion where the deposition layer 13 is removed.

In the method of manufacturing an insert molded container according to the present embodiment, since the lid member 50 is formed of the same synthetic resin material as that of the secondary container 20, the lid member 50 and the secondary container 20 can be integrated after insert molding, and the appearance of the insert molded container 1 can be further improved.

Further, in the method of manufacturing an insert molded container according to the present embodiment, since the primary container 10 is formed using a synthetic resin material having a melting point higher than that of the synthetic resin material forming the secondary container 20, it is possible to prevent the primary container 10 from being melted by heat and/or pressure of the synthetic resin material 70 injected into the mold 60 in the insert molding step, and it is possible to more reliably prevent the outer side surface of the peripheral region of the gate 61 of the primary container 10 from being melted by heat and/or pressure of the synthetic resin material 70 and flowing in a direction away from the gate 61 together with the vapor deposition layer 13, and generating a portion where the vapor deposition layer 13 is detached in the peripheral region of the gate 61 of the primary container 10.

The present invention is not limited to the above-described embodiments, and various modifications can naturally be made within the scope not departing from the gist thereof.

For example, in the above embodiment, the insert molded container 1 has a jar-like outer shape, but is not limited thereto, and may have various shapes such as a bottle shape.

The insert molding container 1 is not limited to a container in which the mouth portion 2 is closed by the lid body 40, and may be a container in which a discharge tool such as a pump or a nozzle is attached to the mouth portion 2.

In the above embodiment, the PCTA resin is used as the polyester-based synthetic resin material forming the secondary container 20, but the invention is not limited thereto, and other polyester-based synthetic resin materials such as PET resin and PCT resin may be used. In addition, other synthetic resin materials than polyester-based ones, such as SAN resin (styrene-acrylonitrile copolymer resin), may also be used.

In the above embodiment, the lid member 50 is formed of the same synthetic resin material as that forming the secondary container 20, but the lid member is not limited thereto, and may be formed of another synthetic resin material as long as it is transparent. In this case, it is preferable to use a material having the same or similar refractive index as the synthetic resin material forming the secondary container 20. By forming the lid member 50 using a synthetic resin material having a refractive index equal to or similar to that of the synthetic resin material forming the secondary container 20, the boundary between the insert-molded secondary container 20 and the lid member 50 becomes inconspicuous, and the appearance of the insert-molded container 1 can be improved.

In the above embodiment, the primary container 10 is provided with the deposition layer 13 on the entire outer surface, but the present invention is not limited to this, and if the deposition layer 13 is provided at least in the peripheral region of the portion of the outer surface of the primary container 10 facing the gate 61, a portion of the outer surface of the primary container 10 may be provided with no deposition layer 13. Further, a printed layer for displaying characters and/or patterns may be provided on the outer side of the vapor deposition layer 13.

In the above embodiment, the primary container 10 and the secondary container 20 are both in the shape of a bottomed cylinder, but the present invention is not limited thereto, and may be in the shape of a polygonal cylinder, for example, and the shape may be variously changed. Further, one of the primary container 10 and the secondary container 20 may be a bottomed cylindrical shape, and the other may be a polygonal cylindrical shape, or the like, and the shapes thereof may be different from each other.

In the above embodiment, the vapor deposition layer 13 is an aluminum vapor deposition layer, but is not limited thereto, and may be another vapor deposition layer, and a vapor deposition layer having luster is preferable.

In the above embodiment, the gate mark 23 is provided on the bottom wall 22 of the secondary container 20, but the present invention is not limited thereto, and the gate mark 23 may be provided in another portion. In the above embodiment, the gate 61 is opposed to the bottom wall 12 of the primary container 10 in the insert molding, but the present invention is not limited thereto, and the gate 61 may be opposed to another portion.

In the above-described embodiment, the shaft portion 50b of the lid member 50 is configured to penetrate the through hole 14 provided in the bottom wall 12 of the primary container 10, but the present invention is not limited to this, and for example, in the case where the insert molded container 1 is configured to directly store the contents therein without using the refill container 30, the shaft portion 50b of the lid member 50 may be configured not to penetrate the bottom wall 12 of the primary container 10.