JP6250375B2 - Container with cover film - Google Patents

Description

  The present invention relates to a container with a cover film for fixing a cover film to a mouth portion and closing a filling space for contents.

  Conventionally, in containers that contain beverages, cosmetics, cleaning agents, etc., a cover film that is fixed by high-frequency heating or the like at the upper end of the mouth of the container and closes the filling space of the container, and this cover film is accommodated inside the container It is known that a cap is attached to the mouth portion (see, for example, Patent Document 1). According to such a container, the inside of the filling space can be reliably closed by the cover film, and damage to the cover film can be prevented by the cap.

Utility Model Registration No. 3043367

  By the way, in recent years, it has been strongly demanded to reduce the number of parts as much as possible from the viewpoint of resource saving and cost reduction, and this is no exception even in such a container. In addition, when using such a container as a refill container for transferring the contents to the container for continuous use, after removing the cap, the cover film is removed, or it is pressed against the dispensing cylinder of the container for continuous use. Therefore, the work of breaking the cover film is required, which is troublesome. For this reason, although it was also considered to use only a cover film without providing a cap, it has not been introduced yet because there is a concern about damage to the cover film depending on handling during market distribution.

  This invention makes it a subject to solve such a point, The objective proposes the container with a cover film which can suppress the damage to a cover film as much as possible while contributing to the reduction of cost. By the way.

The present invention is a bottle-shaped container main body having a filling space for storing contents, a mouth portion having a through-opening leading to the filling space, and a body portion having a diameter larger than the mouth portion, and is fixed to the mouth portion. A cover film-covered container comprising a cover film that covers the through-opening and closes the filling space,
The mouth portion has a stepped portion in which the surface of the mouth portion on the inner peripheral side of the upper end of the mouth portion is recessed toward the filling space, and the cover film is fixed to the upper end of the stepped portion ,
A neck ring extending outward is provided on the outer peripheral surface of the mouth,
The mouth part has a cover film-equipped container having an upper outer diameter that is larger than the outer diameter of the neck ring .

  It is preferable that the cover film can be ruptured by being pressed against a dispensing cylinder provided in a continuous use container for transferring contents in the filling space.

  The cover film preferably includes an aluminum film and a polyethylene terephthalate film, and has a layer structure in which the aluminum film is positioned outside the container body rather than the polyethylene terephthalate film.

No concave toward the outer edge of the neck ring on the outer peripheral surface of the mouth portion, the contents of the filling space while holding the container body through the neck ring by inserting the continued use container the mouth portion it is preferable to provide a groove for discharging toward the air from the continued use containers to be replaced when the object is transferred to the outside world.

  In this invention, while providing the step part which dented the inner peripheral side of the upper end of a mouth toward the filling space in the opening part, the cover film is provided in the upper end of this step part. That is, since the cover film is provided at a position lowered from the upper end of the mouth portion, it is difficult for other objects to directly touch the cover film, and the damage can be effectively prevented.

  When the cover film can be broken by pressing the dispensing tube provided in the container for continuous use to transfer the contents in the filling space, the inverted film is turned upside down when the present invention is used as the refill container. Then, since the contents can be transferred simply by pressing the cover film against the dispensing tube of the continuous use container, the labor required for refilling work can be saved.

  In particular, when the cover film includes an aluminum film and a polyethylene terephthalate film, and is provided so as to have a layer configuration in which the aluminum film is positioned outside the container body than the polyethylene terephthalate film, the aluminum film is first broken and broken. Since the polyethylene terephthalate film, which sometimes feels to burst, is torn later, a softer feel can be exhibited when the cover film is pressed against the dispensing tube and broken.

  A neck ring that extends outward from the outer peripheral surface of the mouth and holds the container body by inserting the mouth into a container for continuous use, and a concave from the outer edge of the neck ring toward the outer peripheral surface of the mouth. If a groove is provided to discharge the air from the container for continuous use, which is replaced when the contents in the filling space are transferred, to the outside, the contents of the container can be stored without holding the container by hand. Since the transfer can be performed, the refilling operation becomes easier.

(A) is a top view about one embodiment of a container with a cover film according to the present invention, and (b) is a side view showing a part in section. It is sectional drawing which shows the opening part periphery of the container with a cover film shown in FIG. It is a perspective view which shows the opening part periphery of the container with a cover film shown in FIG. It is a figure explaining the condition which transfers the contents from the container with a cover film shown in FIG. 1 to a container for continuous use. About other embodiment of the container with a cover film according to this invention, (a) is a top view, (b) is the side view which showed a part in cross section. It is sectional drawing which shows the opening part periphery of the container with a cover film shown in FIG. It is a perspective view which shows the opening part periphery of the container with a cover film shown in FIG. It is a figure explaining the condition which transfers the contents from the container with a cover film shown in FIG. 5 to a container for continuous use.

  Hereinafter, the present invention will be described more specifically with reference to the drawings. In the present specification, claims, abstract, and drawings, `` upper '' is the side where the mouth is located when the container body is placed on a horizontal plane, and `` lower '' The side on which the bottom is located.

  1-3 is a figure which shows one Embodiment of the container with a cover film according to this invention. The container with a cover film includes a container body 10 and a cover film 20.

  As shown in FIGS. 1A and 1B, the container body 10 includes, for example, a bottom portion 11 having a square shape in plan view, a trunk portion 12 standing from an outer edge of the bottom portion 11, and an upward direction from the trunk portion 12. The container is made of a synthetic resin and includes a shoulder portion 13 having a reduced diameter and a mouth portion 14 that is continuous with the shoulder portion 13 and has a cylindrical shape. Inside the container main body 10, a filling space M for storing contents is provided. Further, a through opening 15 that leads to the filling space M is provided in the mouth portion 14.

As shown in FIG. 2, the mouth part 14 is provided with a step part 14 b in which the inner peripheral side of the mouth part upper end 14 a is recessed toward the filling space M. In this embodiment, the diameter of the upper portion of the mouth portion 14 is increased by the provision of the stepped portion 14b, and the formability is maintained so that an extremely thin portion is not formed on the radially outer side of the stepped portion 14b. Further, the mouth portion 14 is provided with a disk-shaped neck ring 14c extending outward from the outer peripheral surface thereof.
The bottle of this embodiment shown in FIGS. 1 and 5 was formed by biaxial stretch blow molding after forming a preform of random PP by injection molding. The preform weight was 9 g, and the specified amount of the bottle was 360 ml.

  In forming the container body 10, various methods such as direct blow molding using a parison obtained by extrusion molding and stretch blow molding using a preform obtained by injection molding can be employed. Moreover, the pressurizing medium for performing these moldings can be appropriately selected from air, liquid (for example, contents), and the like.

  In this embodiment, the cover film 20 is a thin sheet formed into a circular shape, and is fixed to the upper end 14d of the stepped portion 14b so as to cover the entire through opening 15 as shown in FIGS. It is. In this embodiment, the outer diameter of the cover film 20 is larger than the inner diameter of the step portion 14b, and the outer edge portion of the cover film 20 is bent upward, but the outer diameter of the cover film 20 is substantially equal to the inner diameter of the step portion 14b. Alternatively, it may be made small so that this bending does not occur. The fixing method of the cover film 20 may be adhesion using an adhesive or the like in addition to welding by high frequency heating or the like.

  Here, the cover film 20 is configured to be broken by being pressed against the spire. In the present invention, an aluminum film (AL film) 21 and a polyethylene terephthalate film (PET film) 22 are included, and the aluminum film 21 is positioned outside the container body 10 rather than the polyethylene terephthalate film 22. By adopting such a layer structure, when the cover film 20 is pressed against the spire, the aluminum film 21 is first smashed, and the polyethylene terephthalate film 22 that feels ruptured at the time of smashing is smashed later. Therefore, the touch when the cover film 20 is broken becomes softer. In the present embodiment, as shown in FIG. 2, the polyethylene terephthalate film 22 is fixed to the aluminum film 21 in which the aluminum surface protective film 23 is laminated on the outside of the container body 10 via the dry laminate adhesive 24. Furthermore, an unstretched polypropylene film 25 is fixed to the polyethylene terephthalate film 22 via an adhesive 24 for dry lamination.

  With this configuration, the cover film 20 that is fixed to the upper end 14d of the stepped portion 14b is provided at a position that is lowered from the upper end 14a of the step, so that it is difficult for other objects to touch the cover film 20 directly. Thus, it is possible to effectively prevent scratches. Moreover, in order to pour out the contents in the filling space M, the cover film 20 may be peeled off with a finger or the like. For example, this container is used as a refill container for transferring the contents to the continuous use container. In this case, as shown in FIG. 4, after the container body 10 is turned upside down, the mouth 14 is inserted into the continuous use container 30, so that the extraction cylinder 31 hits the cover film 20 and breaks it. Thus, the contents in the filling space M can be poured out, so that the trouble of peeling off the cover film 20 can be saved.

  5-7 is a figure which shows other embodiment of the container with a cover film according to this invention. In addition, about the part which is common in the above-mentioned embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  As shown in FIG. 5, the cover film-equipped container of the present embodiment is provided with a groove portion 14 e that is recessed toward the outer peripheral surface of the mouth portion 14 on the outer edge of the neck ring 14 c. In the present embodiment, a total of six are provided at equal intervals in the circumferential direction, but the arrangement and number can be changed as appropriate.

  When using a container with a cover film having such a groove 14e as a refill container, the mouth 14 is inserted into the continuous use container 30 after the container body 10 is turned upside down as shown in FIG. Thus, the cover film 20 can be broken by the dispensing cylinder 31 and the neck ring 14c comes into contact with the inner peripheral surface of the continuous use container 30 (in the illustrated example, the inner peripheral surface of the upper annular wall 32). The main body 10 can be held in an inverted posture. Here, in order for the contents in the filling space M to be transferred to the continuous use container 30, it is necessary to replace the air in the continuous use container 30 with air from the continuous use container 30 through the groove 14e. Can be discharged, so transfer is not hindered.

  First, the state of fracture when a spire object is pressed against a container with a cover film will be described. The container of Example 1 according to the present invention has the same form as in FIG. 1, and the cover film has an aluminum film of 15 μm, a polyethylene terephthalate film of 9 μm, and an unstretched polypropylene film of 30 μm. It is formed with a layer structure as shown in FIG. The total thickness of the cover film was about 57 μm to 60 μm, and a predetermined number thereof was prepared. In addition, the container of Example 2 has the same form as FIG. 1, and the cover film is formed in order from the outside of the container body toward the filling space, a polyethylene terephthalate film, an adhesive for dry lamination, an aluminum film, A laminate of an adhesive for dry lamination and an unstretched polypropylene film was used. The polyethylene terephthalate film had a thickness of 12 μm, the aluminum film had a thickness of 20 μm, the unstretched polypropylene film had a thickness of 30 μm, and the total thickness was about 65 μm.

  And the cap provided with the extraction pipe | tube according to FIG. 4 was attached to the autograph, pressed against the cover films of Examples 1 and 2 above, and the strength when the cover film was broken was measured. Example 1 averaged 46.0N and Example 2 averaged 79.1N. In addition, Example 2 had a soft feel when broken, but Example 1 had a soft feel. From this, it can be seen that the cover film of Example 1 has a better feel when being broken than the cover film of Example 2.

  Next, the situation where the container with a cover film is accommodated in a carton and transported will be described. The container of Example 3 according to the present invention is obtained by fixing the same cover film as that of Example 1 described above to the upper end of the step as shown in FIG. 1, and the container of Example 4 is the same as that of Example 2 described above. The cover film is fixed to the upper end of the step as shown in FIG. Further, the container of Comparative Example 1 is the same cover film as that of Example 1 described above fixed to the upper end of the mouth of the container, and Comparative Example 2 is the same cover film as that of Example 2 described above. It is fixed to the upper end of the mouth. These containers are stored in a carton (24 containers are stored in one carton), 10 cartons in a row are stacked in four pallets, and transported a predetermined distance (about 900 km) to cover film. The state of was confirmed. The results are shown in Table 1.

  From Table 1, it was confirmed that the container (Comparative Examples 1 and 2) in which the cover film was fixed to the upper end of the mouth portion was damaged in the lower carton where the load was applied. In particular, in the case where the AL film was provided outside the container body (Comparative Example 1), it was confirmed that the cover film was torn. On the other hand, in the containers (Examples 3 and 4) in which the cover film was fixed to the upper end of the stepped portion, the cover film was not damaged or torn, and the results were good.

  The container with a cover film according to the present invention is not limited to the above-described embodiment, and various modifications are possible within the scope according to the claims. For example, the body 12 of the container body 10 is not limited to the one that extends linearly in a side view, and may have a central portion that is recessed toward the filling space M, and the bottom 11 and the shoulder. The part 13 may have a circular shape in plan view. In addition, the thickness of the barrel 12 may be made thinner than other parts. In this case, the amount of material used can be reduced, and the size of the barrel 12 can be easily crushed after the contents are used up. Can be made small and discarded.

  ADVANTAGE OF THE INVENTION According to this invention, the container with a new cover film which can reduce cost can be provided, suppressing the damage to a cover film as much as possible with respect to the container provided with the conventional cap and cover film.

DESCRIPTION OF SYMBOLS 10 Container main body 11 Bottom part 12 Body part 13 Shoulder part 14 Mouth part 14a Upper part of mouth part 14b Step part 14c Neck ring 14d Upper end of step part 14e Groove part 15 Through-opening 20 Cover film 21 Aluminum film 22 Polyethylene terephthalate film 23 Aluminum surface protective film 24 Adhesive for dry laminating 25 Unstretched polypropylene film 30 Continuing use container 31 Dispensing cylinder 32 Upper annular wall

Claims (4)

A bottle-shaped container body having a filling space for storing contents, a mouth portion having a through-opening that leads to the filling space, and a body portion having a diameter larger than the mouth, and the through-opening being fixed to the mouth. A cover film-covered container comprising a cover film that covers and closes the filling space,
The mouth portion has a stepped portion in which the surface of the mouth portion on the inner peripheral side of the upper end of the mouth portion is recessed toward the filling space, and the cover film is fixed to the upper end of the stepped portion ,
A neck ring extending outward is provided on the outer peripheral surface of the mouth,
The mouth portion has a cover film-equipped container having an upper outer diameter that is larger than the outer diameter of the neck ring .   The container with a cover film according to claim 1, wherein the cover film can be broken by being pressed against a pouring cylinder provided in a continuous use container for transferring contents in the filling space.   The container with a cover film according to claim 2, wherein the cover film includes an aluminum film and a polyethylene terephthalate film, and has a layer configuration in which the aluminum film is positioned outside the container body rather than the polyethylene terephthalate film. No concave toward the outer edge of the neck ring on the outer peripheral surface of the mouth portion, the contents of the filling space while holding the container body through the neck ring by inserting the continued use container the mouth portion cover film with container according to claim 1, comprising a groove for discharging toward the air from the continued use containers to be replaced when the object is transferred to the outside world.

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