JP5824935B2 - container - Google Patents

Description

  The present invention relates to a container, and more particularly to a container that can be provided with an arbitrary oxygen scavenger in a state in which it is difficult to contact the contents.

  Currently, packaging technology using an oxygen scavenger is widely applied as a method for preserving food and the like (referred to as food and non-food). Packaging technology using oxygen scavengers means that oxygen scavengers are put in containers that contain foods to be stored, or foods to be stored are put in containers made of packaging materials that have oxygen scavenging function. In this technique, the inside of the container can be kept in a deoxygenated state (oxygen concentration of 0.1 vol% or less). According to this technique, it is possible to prevent quality deterioration of foods and the like due to the presence of oxygen in the container, and to maintain good quality of foods and the like.

  The oxygen scavenger is a composition having an oxygen scavenging action, and is usually used by being encapsulated in a granular or powdered sachet having air permeability. In general, as the oxygen scavenger, an oxygen absorber mainly composed of iron powder or an oxygen absorber mainly composed of an organic substance that does not respond to a metal detector is used. In addition, a sheet-like oxygen absorber formed by blending an oxygen absorbent with a thermoplastic resin is used.

  In addition, the oxygen-removing multilayer sheet is used as a lid so that the oxygen from the outside of the container can be blocked and the oxygen in the container can be absorbed and the food filled in the container can be stored for a long time at a low cost. A technique for forming the film is known (for example, see Patent Document 1).

  However, in general, it is difficult to use a sachet type oxygen absorber in a state of being immersed in liquid water. In addition, when a small bag-type oxygen scavenger is used for bottling foods that are often heat-sterilized after sealing, the steam generated during heating enters the oxygen scavenger and is deoxidized by the moisture in the invading steam. There is a risk that rust or the like generated in the oxygen agent oozes out to the outer surface of the sachet and comes into contact with food.

  There is a method in which the oxygen scavenger is attached to the back surface of the lid using an adhesive such as a double-sided tape or hot melt so that the oxygen scavenger is less likely to come into contact with food. However, when the oxygen scavenger is in direct contact with liquid water, the oxygen scavenger affixed to the back surface of the lid may fall off from the back surface of the lid and be mixed into food stored in the container. there were. In particular, when the food to be put in the container is food that needs to be heated after sealing, the adhesive strength of the adhesive decreases when the container is heated, and the oxygen scavenger attached to the back of the lid is food. There was a high possibility of falling.

  In the technique of Patent Document 1, since it is necessary to form a deoxidizing multilayer sheet on the ceiling wall surface of the lid member, the size of the deoxidizing multilayer sheet is limited by the shape of the lid member. For this reason, in the deoxidation multilayer sheet of the magnitude | size which received the restriction | limiting of the shape of a cover material, there was a limit in the capability to absorb the oxygen in a container.

JP 2010-195421 A

  The objective of this invention is providing the container provided with sufficient airtightness and sufficient oxygen absorption capability in the state which cannot contact the content of arbitrary oxygen scavengers.

A container according to the present invention has an opening, a container body filled with contents from the opening, a recess that is detachably fitted to the opening so as to cover the opening, and the inside of the recess And a liner having a liner formed thereon, an oxygen scavenger that absorbs oxygen in the contents, a ring-shaped collar part that is detachably disposed in the opening, and an inner part of the collar part. An isolation cup having a cup portion. The isolation cup holds the oxygen scavenger in the vicinity of the opening so that the oxygen scavenger is in non-contact with the contents and allows oxygen to pass through but does not substantially pass liquid water. Formed of material. The liner is hermetically in contact with the collar so that the liner and the collar are in an airtight state in a sealed state where the lid is attached to the opening, and the contents are The opening is hermetically contacted so as to be sealed with respect to the outside of the container body.
According to the present invention, in the sealed state, the oxygen scavenger is held in the vicinity of the opening so as to be able to absorb oxygen in the container and in a non-contact state with the contents. As a result, the liner can prevent oxygen from entering from the outside of the container, and can prevent the contents inside the container body and its moisture from reaching the oxygen scavenger.

It is preferable that the collar portion protrudes from the opening in the sealed state, and the liner has a mortar shape that becomes thicker toward the side surface of the recess inside the recess.
By doing in this way, even if a level | step difference arises in the opening part in which the collar part was mounted between the part in which the collar part is not mounted, and the part in which the collar part is mounted, a liner Since it has a mortar shape along the step, the liner can be in contact with the opening portion on which the collar portion is not placed and the collar portion with sufficient airtightness.

It is preferable that the opening has a step portion that accommodates a part of the flange so that the flange protrudes from the opening in the sealed state.
By doing in this way, the thickness of a collar part can be thickened to the dimension which exhibits intensity | strength required in order that a cup part hold | maintains an oxygen scavenger airtightly.

  ADVANTAGE OF THE INVENTION According to this invention, the container provided with sufficient airtightness and sufficient oxygen absorption capability in the state which is hard to contact the contents of arbitrary oxygen absorbers.

It is the vertical sectional view in the state where a part of one embodiment of the container concerning the present invention was omitted and the lid material was not fitted in the opening of the container main part. FIG. 2 is a vertical cross-sectional view of the container shown in FIG. 1 in a state in which a lid member is fitted into the opening of the container main body.

The container according to the present invention will be described with reference to the drawings. In addition, drawing is shown typically and may differ from an actual shape.
Referring to FIG. 1, a container 10 according to the present invention includes a container body 30, a lid member 60, an isolation cup 90, and an oxygen scavenger 100.

The container body 30 includes a cylindrical side surface portion 32, a bottom portion 34 formed at the lower end portion of the side surface portion 32, and an opening portion 36 formed at the upper end portion of the side surface portion 32.
The space formed by the side surface portion 32 and the bottom portion 34 is filled with the content 120 through the through hole 37 of the opening 36.
On the outer periphery of the opening 36, a male screw 38 that is screwed into the female screw 62 of the lid member 60 is formed.
On the end face 40 of the opening 36, a stepped portion 42 in which the flange 92 of the isolation cup 90 is disposed is formed. The bottom surface 44 of the stepped portion 42 is formed at a distance a from the end surface 40.
The diameter of the cylindrical side surface 46 of the step portion 42 is preferably the same as the outer diameter of the flange portion 92 but slightly larger so that the flange portion 92 can be easily disposed on the step portion 42.
The container body 30 is integrally formed of, for example, glass or a thermoplastic resin.

The lid member 60 includes a lid body main body 64 having a disk shape and a liner 70. The lid body 64 includes a concave portion 66 having a cylindrical side surface 68 and a bottom surface 69, and a female screw 62 that is formed on the side surface 68 of the concave portion 66 and can be screwed into the male screw 38.
The liner 70 is formed in the recess 66. Specifically, the liner 70 is formed so as to contact the side surface 68 of the recess 66 and the bottom surface 69 of the recess 66. The thickness t of the liner 70 in the vertical direction Y is directed to the side surface 68 of the concave portion on the inner side surface 68 of the concave portion 66 (from the mortar-shaped center C of the liner 70 in the radial direction R of the through hole 37 of the opening portion 36). It has a mortar shape that becomes thicker as it goes away. The shape of the liner 70 in FIG. 1 is a shape in which the bottom surface 69 is exposed from the center of the mortar shape, and the surface of the mortar shape is a mortar surface 71.
The lid member main body 64 is preferably formed integrally with, for example, aluminum or steel.
The liner 70 is preferably formed of a synthetic resin that has elasticity and airtightness and has low permeability of oxygen and water vapor. For example, a rubber material such as silicon rubber or urethane rubber or a plastic material such as soft polyethylene, foamed polyethylene, foamed polystyrene, foamed polyurethane, or foamed vinyl chloride resin is used for the liner 70 in order to improve the airtightness of the container 10. can do.

The isolation cup 90 is formed on the inner side of the ring-shaped flange 92 detachably disposed in the opening 36, and the oxygen scavenger 100 is not in contact with the contents 120 (see FIG. 2). As shown, the oxygen absorber 100 has a cup portion 94 that holds the oxygen absorber 100 in the vicinity of the opening 36.
The thickness dimension b of the flange 92 between the upper surface 93a and the lower surface 93b is larger than the distance a between the end surface 40 of the opening 36 and the bottom surface 44 of the stepped portion 42. Therefore, the flange 92 protrudes from the end surface 40 of the opening 36 when the isolation cup 90 is placed in the opening 36.
The flange portion 92 has a ring shape having an outer diameter that is the same as or slightly smaller than the cylindrical side surface 46 of the step portion 42, and an inner diameter that is smaller than the inner diameter of the through hole 37 of the opening portion 36.
The cup portion 94 is formed integrally with the flange portion 92 and includes a main body portion 95 having a cylindrical shape and a concave portion 96 formed in the main body portion 95. The recess 96 has a size and a depth that can accommodate the oxygen scavenger 100 in an airtight manner. The outer diameter of the main body 95 is preferably the same as or slightly smaller than the inner diameter of the through hole 37 so that the main body 95 can be easily disposed in the through hole 37.
The isolation cup 90 is formed of a thermoplastic resin, which is a known material, that allows oxygen to pass but does not substantially pass liquid water. For the isolation cup 90, for example, polyolefins such as polyethylene, polypropylene, polybutadiene and polymethylpentene, elastomers and modified products thereof, or mixtures thereof are preferably used, and particularly preferably a mixture of polyethylene and polypropylene, propylene-ethylene. A random copolymer or a mixture thereof is used. Oxygen permeability of the isolation cup is not particularly ^{limited, 30~210cm 3 / (m 2 ·} day · atm) are ^{preferred, 60~180cm 3 / (m 2 ·} day · atm) is more preferable. When the oxygen permeability of the isolation cup is in the above range, oxygen in the container is absorbed more quickly than when it is less than 30 cm ³ / (m ² · day · atm). In addition, when the oxygen permeability of the isolation cup is in the above range, the strength of the isolation cup can be increased as compared with a case where the oxygen permeability is greater than 210 cm ³ / (m ² · day · atm).

The oxygen scavenger 100 may be any composition that can absorb oxygen. For example, metal powder such as iron powder, reducing inorganic substances such as iron compounds, polyhydric phenols, polyhydric alcohols, ascorbic acid Alternatively, an oxygen scavenger composition containing a reducing organic substance such as a salt thereof or a metal complex as the main component of the oxygen absorption reaction is used. Among these, an oxygen scavenger composition mainly composed of iron powder having excellent oxygen scavenging performance is preferable, and an oxygen scavenger composition comprising a metal halide that promotes an oxygen absorption reaction with the iron powder of the main agent is particularly preferable. Excellent performance.
The iron powder used in the oxygen scavenger composition is not particularly limited as long as it can cause a deoxygenation reaction, and iron powder normally used as an oxygen scavenger can be used.
The metal halide used in the oxygen scavenger composition is not particularly limited, and examples thereof include alkali metal or alkaline earth metal chlorides, bromides, and iodides.
In addition, as the oxygen scavenger 100, for example, trade name: Ageless (registered trademark) manufactured by Mitsubishi Gas Chemical Co., Ltd. is preferably used. The shape of the oxygen scavenger 100 is only required to be arranged in the recess 96. For example, trade names manufactured by Mitsubishi Gas Chemical Co., Ltd .: AGELESS (registered trademark) label type (AGELESS FL type), card type (AGELESS FC type), packing It may be a type (ageless FP type) or a pouch type (ageless FX, ZPT, FS type).

  With reference to FIG.1 and FIG.2, the usage of the above container 10 is demonstrated.

First, as shown in FIG. 1, the content 120 is put into the container body 30 through the through hole 37 of the opening 36 with the lid 60 removed from the opening 36.
Next, the isolation cup 90 is placed in the opening portion 36 so that the flange portion 92 is inserted into the hole formed by the cylindrical side surface 46 of the step portion 42 and the main body portion 95 is inserted into the through hole 37. To do. Thereby, the isolation cup 90 hardly moves in the radial direction R of the through hole 37 of the opening 36.
Next, the oxygen scavenger 100 is placed on the cup portion 94.
Next, as shown in FIG. 2, the female screw 62 of the lid member 60 is screwed into the male screw 38 of the opening portion 36, so that the lid member 60 is attached to the opening portion 36. At this time, the lid member 60 is screwed into the opening 36 while being rotated, so that the mortar-shaped surface 71 of the liner 70 rotates on the upper side of the opening 36 with the mortar-shaped center C of the liner 70 as the rotation center. The upper surface 93a of the flange 92 and the end surface 40 of the opening 36 are in surface contact in an airtight state.
Thereby, the oxygen scavenger 100 is isolated in a space formed by the cup portion 94, the liner 70, and the recess 66.
Since the liner 70 and the flange 92 are in surface contact with each other in an airtight manner, the content 120 does not possibly reach the oxygen scavenger 100 between the liner 70 and the flange 92.
Further, since the liner 70 and the end surface 40 of the opening 36 are in airtight surface contact, the contents 120 and the outside of the container 10 are in contact with each other by the surface contact between the liner 70 and the end surface 40 of the opening 36. Blocked. That is, there is no possibility that oxygen outside the container 10 enters and reaches the contents 120.
In addition, since the cup portion 94 is formed of a material that allows oxygen to pass therethrough but does not substantially pass liquid water, there is no possibility that the liquid water contained in the contents 120 will reach the oxygen absorber 100.
Therefore, the oxygen absorber 100 can absorb oxygen in the head space in the container body 30 that passes through the cup portion 94 without being immersed in liquid water, and is contained in the content 120. Oxygen decreases. Thereby, the container 10 can prevent the quality deterioration of the content 120 resulting from presence of oxygen in the container main body 30.

  The content 120 is not limited in any way, but is a food that contains a lot of water and causes discoloration due to oxidation, for example, processed foods such as green tea drinks, matcha jelly, jam, grated garlic, grated ginger, This container can be used suitably.

The above containers have been described as food contents, but the present invention is not limited to this. For example, the containers may be used as containers for storing granular materials such as drugs and supplement tablets, and powdered materials such as microcapsules. Can do.
In addition, although it has been described that the step portion 42 is formed in the opening portion 36, the step portion 42 may not be formed in the opening portion 36 as long as a thickness having a strength necessary for the flange portion 92 can be secured. Good.

DESCRIPTION OF SYMBOLS 10 Container 30 Container main body 32 Side surface part 34 Bottom part 36 Opening part 37 Through-hole 38 Male screw 40 Opening end surface 42 Step part 44 Bottom surface 46 Cylindrical side surface 60 Lid material 62 Female screw 64 Lid material main body 66 Recess 68 Side surface 69 Bottom surface 70 Liner 71 Mortar-shaped surface 90 Isolation cup 92 Hook 93a Upper surface 93b Hook lower surface 94 Cup 95 Main body 96 Recess 100 Oxygen absorber 120 Contents

Claims (2)

A container body having an opening and filled with contents from the opening;
A lid member having a recess detachably fitted to the opening so as to cover the opening and a liner formed in the recess;
An oxygen scavenger that absorbs oxygen in the contents;
An isolation cup having a ring-shaped flange portion detachably disposed in the opening and a cup portion formed inside the flange portion,
The isolation cup holds the oxygen scavenger in the vicinity of the opening so that the oxygen scavenger is in non-contact with the contents and allows oxygen to pass through but does not substantially pass liquid water. Formed of material,
The flange portion protrudes from the opening in a sealed state where the lid is attached to the opening.
The liner is inside the recess, has a thickened mortar shape toward the side surface of the recess, also before in Kimitsu closed state, such that the liner and the flange portion is airtight, the A container that hermetically contacts the opening and hermetically contacts the opening so that the contents are sealed against the outside of the container body.   2. The container according to claim 1, wherein the opening includes a step portion that accommodates a part of the flange so that the flange protrudes from the opening in the sealed state.

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