JP2602650Y2 - Packing for container sealing - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a hermetic packing for a container which is held inside a lid and closes an opening of the container. The present invention relates to a packing that allows the contents to be seen through a top wall of a body.

[0002]

2. Description of the Related Art In a container comprising a container and a lid for closing an opening of the container, it is often required to identify the color and state of the contents and, in some cases, the type without removing the lid and looking at the container. . In such a case, the container is usually made of transparent glass or synthetic resin. However, when the container is made opaque for design or material reasons, the lid must be transparent.

However, the lid generally holds the packing inside, and this packing is made of rubber, synthetic resin or their foam, or paper and is opaque, so that it can be seen through the top wall of the lid. It is impossible.

On the other hand, transparent packing is disclosed in, for example,
It is widely known as disclosed in JP-A-6-2799. If this kind of packing is used in combination with a transparent lid, it is possible to see through the contents while these are attached to a container body. .

However, the above-mentioned transparent packing is a thin film, and cannot be held in a compressed state by a lid like a cushioning opaque packing. Therefore, the packing is separated from the lid, and the lid is removed. The operation of removing the contents, taking out the contents, covering the packing with the opening, attaching the lid, and sealing must be repeated every time the contents are taken out, which is troublesome. In addition, when the packing is removed, it must be handled carefully so that no dirt adheres or is lost, and it is also troublesome that care must be taken so that the packing does not slip when it is put on the opening. In particular, if it is lost or displaced when covered, the protective function of the contents is impaired, and if dirt adheres, there is a problem in hygiene.

[0006]

The problem to be solved by the present invention is to provide a transparent packing which is excellent in the function of protecting the contents and has no structure which can be held by the lid. Because it must be handled separately from the body, it is not only troublesome, but there is a risk of staining and loss,
Therefore, there is no packing that makes it possible to see through the contents while being held in the transparent lid and attached to the container.

[0007]

In order to solve the above-mentioned problems, the present invention provides a transparent packing made of different materials on both surfaces of a cushion-like annular packing material to be overlapped on the rim of a container body. The outer peripheral portions of the film-like packing material were overlapped and joined to each other. By this means, the lid can be held by the lid, is easy to handle, has no fear of fouling or loss, and has an excellent content protection function, and is particularly used for a transparent lid for seeing through the content. The purpose of the present invention is to provide a transparent packing which is suitable for the use.

[0008]

The annular packing material is fixed on the inner surface of the top wall of the lid by compression or engagement of irregularities or by bonding and is held by the lid, so that it can be integrally attached to and detached from the container body with the lid. When mounted on the container, the film-like packing material covers the opening and the annular packing material is overlaid on the rim to protect the contents.When the lid is transparent, the contents are passed through the film-like packing material from above the top wall. Things are seen through. Also, better protecting the contents since with different material of film-like packing material sandwiching the annular packing member.

[0009]

1 and 2 show different embodiments of the present invention, wherein 1 and 2 are transparent film-like packing materials, and 3 is a cushion-like annular packing material. The annular packing material 3 is made of rubber, synthetic resin, or a foam or paper thereof, has an appropriate thickness, and has a size that overlaps the rim around the opening of the container body, and is generally opaque. is there.

[0010] embodiment of FIG. 1, the two different pieces of film-like packing material 1 made of one another an annular packing member 3
The flanges 1d, 2d formed on the middle butted portion are arranged one by one on both sides of the outer peripheral surface of the annular packing material 3 so that the peripheral portions 1c, 2c projecting outwardly are arranged along the outer surface of the annular packing material 3.
Are bonded with an adhesive 6 to wrap the annular packing material 3 so that the film-like packing materials 1 and 2 and the annular packing material 3 are integrated with each other.

The embodiment of FIG. 2 is substantially the same as that of FIG. 1, except that a portion of one of the film-like packing materials 1 protruding outward from the annular packing material 3 is defined as a flange 1f.
The peripheral portion 2e of the other film-shaped packing material 2 is made to extend along the entire outer surface of the annular packing material 3, and the flange portion 2f is overlapped with the flange portion 1f and welded.
By wrapping the annular packing material 3 by joining
The film-like packing materials 1 and 2 and the annular packing material 3 are integrated with each other.

Incidentally, in these, the film-like packing materials 1 and 2 may be joined to the annular packing material 3 by bonding or welding, and these may be integrated.

The film-like packing materials 1 and 2 are a non-stretched polypropylene film having excellent moisture proofness, transparency and heat resistance, a biaxially oriented polypropylene film having excellent moisture proofness and waterproofness, and have an excellent impact resistance and seal strength. Ethylene vinyl acetate copolymer film, mechanical strength, moisture proof,
Polyethylene terephthalate film with excellent waterproof, heat, cold and electrical insulation strength, polyvinyl chloride film with excellent transparency, moldability and mechanical strength, pinhole resistance, gas barrier properties, fragrance retention, oil resistance, resistance Nylon film with excellent chemical, heat and cold resistance, transparency, gas barrier properties, mechanical strength, oil resistance, fragrance retention, polyvinyl alcohol film with excellent antistatic properties, transparency, acid resistance,
Polystyrene film with excellent alkali resistance, polyvinylidene chloride film with excellent gas barrier properties, moisture proof, waterproof, oil resistance, chemical resistance, and fragrance retention, gas barrier properties,
An ethylene-vinyl alcohol copolymer film having excellent oil resistance and fragrance retention properties is selected from those satisfying the performance required by the contents.

For example, a film-like packing material 1 which directly covers the opening of the container body is made of a material having excellent moisture-proof, waterproof and chemical resistance, and another film-like packing material 2 is used for mechanical strength and pinhole resistance. The selection may be arbitrary, for example, using a material excellent in quality, but one or both of which sandwich the annular packing material 3 may be formed by stacking two or more film-like packing materials unless the transparency is significantly reduced. .

When the lid having the packing shown in these embodiments fixedly held on the inner surface of the top wall is screw-fitted to the container, the film-like packing materials 1 and 2 cover the opening of the container and the peripheral edge thereof is formed. The contents are hermetically sealed by being placed on the rim and pressed by the elastic force of the annular packing material 3. At this time, the annular packing material 3 closes the gap between the container body and the lid body to help the sealing action of the film-like packing materials 1 and 2, and the film-like packing materials 1 and 2 are superimposed on both sides so that An excellent sealing effect is obtained because of the sealing action.

When the lid is attached to and detached from the container, the packing is also attached and detached integrally. When the container is opaque and the lid is transparent, the contents can be seen through the film-like packing materials 1 and 2 from above the top wall with the lid attached to the container.

[0017]

This invention packing, according to the invention] is because a configuration in which a single piece overlapping the outer periphery of the annular packing member duplex on the material is different transparent film-like packing material with cushioning, a film-like packing Then get
By combining things with unmatched performance
It shall have various protection functions required by the contents.
Can be Further, alone easily and can be stabilized better holding handle a troublesome film-like packing material lid body using an annular packing materials, Because of this
Not only handling is attached to and detached from the container body to cover the body and integrated at the time of taken out the contents product is easy, along with the worry of contamination or loss is eliminated, is the notation Ilm-shaped packing material was fitted with a lid body annular packing It cooperates with the material to completely seal the opening and to protect the contents well.

Also, by combining with a lid made of a transparent material, the top wall of the lid can be mounted on the container,
There is an advantage that the contents can be seen through the film-like packing material.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Film-shaped packing material 2 Film-shaped packing material 3 Annular packing material

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 63-3967 (JP, U) Japanese Utility Model Showa 46-2799 (JP, Y1)

Claims (1)

(57) [Scope of request for utility model registration] 1. A film-like packing material comprising: an annular packing material having a cushioning property to be overlapped on an edge of a container body; and a transparent film-like packing material having outer peripheral portions overlapped on both surfaces thereof and joined to each other. Is a packing for sealing a container, wherein the one directly covering the opening of the container body and the other one are made of different materials .