JPH0644850Y2 - Container with screw cap - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a container with a screw cap. More specifically, it relates to a container with a screw cap provided with a partition film for separating and storing a freshness-retaining agent for maintaining the freshness of the contents contained in the container.

[Conventional technology]

Conventionally, in order to prevent the deterioration of the quality of foods, chemicals, etc. due to the influence of moisture, oxygen, microorganisms, etc., preservation items such as foods and chemicals, and desiccants, preservatives, insect repellents, oxygen scavengers, etc. It has been practiced to enclose and in a sealed container together. At that time, if the freshness-keeping agent comes into direct contact with foods, etc., the freshness-keeping agent is often contaminated with oil or moisture of the food, and its function is impaired. There was also a risk of accidental eating.

For these reasons, it has become possible to isolate the freshness-retaining agent contained in the container from the food. That is,
An attempt to separate the food and the freshness-retaining agent by providing a separation membrane on a part of the container to keep the freshness of the food contained in the container and arranging the food and the freshness-retaining agent on both sides of the isolation film. Came to be done.

However, in the case of a screw cap, it is difficult from a structural and manufacturing cost point of view to retain the partition film containing the freshness-retaining agent in the screw cap while maintaining the original function as the cap, that is, the sealing property and the detaching property. However, it was impossible to provide a partition film on the existing screw cap. In addition, there is no partition film mounted in the screw cap, which has good shapeability, strength, elasticity, rigidity and air permeability, and can impart airtightness that does not deteriorate the function of the freshness-retaining agent. It was the actual situation.

[Problems to be solved by the device]

In view of the above-mentioned problems of the prior art, it is an object of the present invention to easily attach a partition film inside a screw cap with good sealing property and without impairing the freshness retaining function in a container with a screw cap.

[Means for Solving the Problems]

Means for solving the above-mentioned problems include a container body (A) and a screw cap (B) that can be screwed into the container body.
And a dish-shaped inner lid-shaped partition film that fits the mouth of the container body and has a convex freshness-retaining agent storage portion that protrudes toward the container body side and a ring-shaped collar portion that extends outside the freshness-retention agent storage portion. And a partition film (C) formed by forming a sheet obtained by forming plastic fibers into paper and then drying the molded product, and the partition film (C) is formed outside the ring-shaped collar portion. The diameter is larger than the inner diameter of the screw cap, and when the screw cap is screwed into the container, the outer edge of the ring-shaped collar does not reach the screw thread located closest to the upper flat surface of the inner surface of the screw cap, and the partition Gurley type air permeability of the membrane is 0.1 ~ 300 seconds / 100 ml
・ It was to be in the range of ² .

In the above solving means, the partition film is for accommodating the freshness-retaining agent, and is provided as an inner lid fitted between the container body and the screw cap when the container is sealed.
Its shape is a dish shape that fits the mouth of the container body, and is formed from a freshness-retaining agent storage portion that is convex toward the container body side, and a ring-shaped collar portion that extends outside the freshness-retention agent storage portion.

The outer diameter of the ring-shaped collar portion of the partition membrane is larger than the inner diameter of the screw cap, and when the screw cap is screwed into the container body, the outer edge of the ring-shaped collar portion is the upper flat surface portion of the inner surface of the screw cap (substantially The size is set so that it does not reach the screw thread (the screw thread at the uppermost position) located closest to the part to be formed).

The material of the partition film is breathable in order to act the freshness-retaining agent on the preserved article. In the present invention, as the partition film, a sheet obtained by making plastic fibers into paper and then drying is shaped and used so as to accommodate the freshness-retaining agent as described above. Then, the partition membrane having a Gurley air permeability set to be in the range of 0.1 to 300 seconds / 100 ml · in ² is used. Gurley air permeability is JI
It is an index suitable for expressing the air permeability of a paper-like material, which can be measured according to S-P8117 “Paper and board air permeability test method”.

Illustrating a mode of applying the container of the present invention to storage of goods,
After filling the screw cap container with the required food or pharmaceuticals in advance, place it by hooking the ring-shaped collar of the partition film for storing the freshness-retaining agent on the container mouth, and then placing the plate of the partition film. A freshness-retaining agent is put into the shaped recess, and then a screw cap is fitted to the mouth of the container. By fitting the screw cap into the mouth, the above-mentioned hooking part of the ring-shaped collar part of the partition membrane enters the space above the screw part inside the screw cap, deforms, and it becomes a state where it is partially molded by twisting. The partition film is completely installed in the screw cap while keeping the freshness-retaining agent enclosed, and thereafter, the partition film is fixed and maintained in the screw cap regardless of the opening / closing operation of the screw cap.

[Action]

 The above solution means operates as follows.

In the container of the present invention, a shaped body provided with a circular ring-shaped collar portion is used as the partition film, and the circular ring-shaped collar portion is properly installed on the partition film, so that the partition film is provided at the opening end of the container body. By placing the freshness-retaining agent and screwing the screw cap onto the container body, it is possible to keep the article fresh, and when the cap is opened again, the partition film may be fixed to the screw cap and fall off. Absent. By using the space above the screw threads inside the screw cap, a freshness can be obtained by placing a hooking part that is larger than the inner diameter of the screw cap of the ring-shaped collar part of the partition membrane on the container mouth and once fitting it with the screw cap. The retaining agent partition membrane can be mounted and fixed in the screw cap.

The partition film also has a function as a packing that keeps the container airtight when the screw cap is screwed into the container body.

Further, in the container of the present invention, since a shaped sheet of a sheet obtained by making plastic fibers as a partition film and then drying is used, suitable air permeability can be imparted, and the freshness-retaining agent and the preserved article can be completely isolated. can do.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of the container of the present invention. 2 and 3 are a cross-sectional view and a plan view of an embodiment of a partition film which constitutes the container of the present invention, and FIG. 4 shows the partition film fitted to the container together with a screw cap. It is a thing.

The container shown in FIG. 1 comprises a container body 1, a screw cap 2 screwed to the container body 1, and a partition film 3 fitted inside the screw cap 2. 2 to 4 show a partition film 3 which is a member forming the present invention. Partition film 3
Is shaped like a dish and has a circular ring-shaped collar portion 34 slightly larger than the inner diameter of the screw cap 2 and a freshness-retaining agent storage portion 32. When this ring-shaped collar portion 34 is attached to a container with a screw cap such as a bottle, it serves as a hooking portion for attaching and holding the partition film 3 inside the screw cap 2.
When the screw cap 2 is screwed into the container body 1, the flange portion 34 is bent along the curved inner surface of the screw cap 2 as shown in FIG. 4, and the outer edge of the flange portion is screw capped. It is located above the screw thread. (See FIG. 1) As a material of the partition membrane 3, a sheet obtained by making plastic fibers into paper and then drying is used. The sheet has good strength, rigidity and air permeability, and functions as a freshness-keeping agent to be stored. Is preferable, and the sealing effect is maintained at the time of sealing by the screw cap so that the hermeticity is maintained. The sheet obtained by making plastic fibers and then drying them is (1) pressed by a hot roll and then shaped. (2) impregnated with a fluororesin and dried to form a fiber. To the fiber, or (3) the fluororesin is impregnated and dried to adhere the fluororesin to the fiber, and then the fiber is pressed with a hot roll, and then shaped. In this case, the water resistance, oil resistance or strength of the partition film can be increased. As the plastic fiber, for example, one or two or more kinds selected from polyolefins such as polyethylene or polypropylene, polyamides such as nylon, polyesters such as polyethylene terephthalate are used.

The container has a structure that can be closed with a screw cap, and examples thereof include a container made of metal, glass, plastic, a laminate of paper and plastic, ceramics, or the like. The shape of the container is, for example, cylindrical or prismatic, and is not particularly limited.

Examples of the freshness-retaining agent stored in the freshness-retaining agent-accommodating space 4 include a desiccant, an antiseptic, an insect repellent, a deodorant, an ethylene absorbent, an oxygen scavenger, and the oxygen scavenger is particularly preferable.
The oxygen absorber is not particularly limited as long as it has an action of absorbing oxygen, sulfite, bisulfite,
Dithionite, ferrous salt, hydroquinone, catechol, resorcil, pyrogallol, gallic acid, rongalit, ascorbic acid and / or its salt, isoascorbic acid and / or its salt, sorbose, glucose, lignin, dibutylhydroxytoluene Or a deoxidizer containing butylhydroxyanisole or the like or a deoxidizer containing metal powder such as iron powder is used, and ascorbic acid and / or its salt, isoascorbic acid and / or its salt, or iron powder An oxygen scavenger containing is preferably used. Of these, the oxygen absorber containing iron powder is particularly preferably used. Further, a carbon dioxide generating oxygen absorber or a carbon dioxide absorbing oxygen absorber can be used. The form of the oxygen scavenger to be stored is not particularly limited, but preferably, it is a mixed powder of the composition of each oxygen scavenger as it is, or a composition of the oxygen scavenger formed into a tablet shape, etc. Made into a sheet by the method,
Examples include a composition in which the composition of the oxygen scavenger is filled and packaged in a small bag made of a breathable packaging material.

[Unique effect]

Since the container of the present invention has the above-mentioned structure, it has the following unique effects.

In the container of the present invention, a partition film for storing the freshness-retaining agent is placed at the container mouth, the freshness-retaining agent is put into the dish-shaped recess of the partitioning film, and then the screw-cap is fitted to dispose the partitioning film. Can be retained and fixed in the screw cap in a state where it is enclosed.

Moreover, it can be easily attached to an existing container with a screw cap, and is extremely convenient without causing any trouble when taking out the contents of the container.

Furthermore, the partition film is installed in the screw cap,
When fixed, the partition membrane attached and fixed in the screw cap does not fall off even if a part of the contents is repeatedly taken out, and the residue of the freshness-retaining agent isolated in the partition membrane does not fall off. It has the advantage that performance can be exerted to keep the contents of the container fresh again.

By using the container of the present invention, not only solid, granular, and granular articles, but also articles such as powder, fine powder, liquid, and semi-liquid paste can be preferably kept fresh.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the container of the present invention. 2 and 3 show a cross-sectional view and a plan view of one embodiment of a partition film constituting the container of the present invention. FIG. 4 shows the partition film fitted in a container together with a screw cap. 1 …… Container main body 11 …… Container mouth 2 …… Screw cap 3 …… Partitioning membrane 32 …… Freshness preservation agent storage section 34 …… Circular collar 4 …… Freshness preservation agent storage space

Claims (1)

[Scope of utility model registration request] 1. A container body (A) and a screw cap (B) which can be screwed into the container body.
And a dish-shaped inner lid-shaped partition film that fits the mouth of the container body and has a convex freshness-retaining agent storage portion that protrudes toward the container body side and a ring-shaped collar portion that extends outside the freshness-retention agent storage portion. And a partition film (C) formed from, wherein the partition film (C) is formed by shaping a sheet obtained by forming plastic fibers and then drying the plastic fiber, and the outer diameter of the ring-shaped collar portion. Is larger than the inner diameter of the screw cap, the size of the outer edge of the ring-shaped collar does not reach the screw thread located closest to the upper flat surface of the inner surface of the screw cap when the screw cap is screwed into the container, and the partition film Air permeability of Gurley type air permeability of 0.1 ~ 300 seconds / 100 ml
・ A container with a screw cap, which is designed to be in the range of ² .