JP5125846B2 - Package with oxygen indicator - Google Patents

Description

  The present invention is a package used by being stored in a packaging container used for storing contents such as foods and medicines in a deoxygenated state for a long time, and an oxygen indicator is attached to a part thereof. The present invention also relates to a package with an oxygen indicator that can accurately display the degree of deoxygenation in the packaging container without the oxygen indicator portion being in contact with the contents or other members of the packaging container.

  Currently, many oxygen indicators have been put on the market so that the state of deoxygenation in a packaging container encapsulating oxygen scavengers can be easily checked when pinholes, seal defects, oxygen scavenger defects, etc. have changed. ing. The oxygen indicator is composed mainly of, for example, a redox indicator, a reducing agent, a binder resin, and the like, and various components are produced by appropriately combining these components (see, for example, Patent Document 1). .

  The oxygen indicator having such a configuration utilizes the property that the redox indicator exhibits a different hue between the reduced type and the oxidized type. More specifically, when there is sufficient oxygen in the surrounding atmosphere, the oxygen suppresses the action of the reducing agent and the redox indicator takes an oxidized structure and exhibits a predetermined hue. When oxygen is no longer present in the surrounding atmosphere, the reducing agent works and the redox indicator becomes a reduced structure and exhibits a different hue. Therefore, by utilizing such a change in hue, it is possible to visually detect the presence or concentration change of oxygen around the oxygen indicator.

  There are several known oxygen indicators using redox indicators, but many of them are highly dyeable, and they move to the contents stored in the packaging container together with the oxygen indicator. I had to do it. For example, methylene blue has extremely strong dyeability and often migrates in contact with the contents. Even if the oxygen indicator is not in direct contact with the contents in the packaging container, the methylene blue constituting the oxygen indicator may permeate into the sealant layer constituting a part of the packaging container and then move to the contents. It was.

  In order to prevent such transition, there is a packaging container in which a layer for preventing elution of a redox indicator in the oxygen indicator is laminated on the oxygen indicator (see, for example, Patent Document 2).

  In some cases, the oxygen indicator itself is enclosed in a sachet, and then the sachet is filled into a packaging container containing the contents.

However, in these containers and methods, a general-purpose oxygen barrier packaging container cannot be used as a container for storing the contents in a deoxygenated state for a long period of time, and also for preventing the transfer of the redox indicator. Manufacturing of the sachet, sealing of the oxygen indicator in the transition prevention sachet, and storage of the transition prevention sachet filled with the oxygen indicator in the packaging container, etc. There were problems such as extra costs.
JP 2001-192592 A JP 2005-337839 A

  The present invention has been made in view of the above circumstances, and is a package that is used by being stored in a packaging container that is used for storing contents such as foods and medicines in a deoxygenated state for a long period of time. An oxygen indicator that indicates the degree of oxygen state is attached to a part of the packaging container so that the oxygen indicator is not in contact with the contents stored in the packaging container or other members in the packaging container. It is an object of the present invention to provide a package with an oxygen indicator that can accurately display the state of deoxygenation.

  In order to solve the above-mentioned problem, the invention according to claim 1 is a package with an oxygen indicator used in a packaging container in a deoxygenated atmosphere, at least filled with contents. The sealed content filling portion and the non-filling portion provided adjacent thereto are constituted by a packaging member, and an oxygen indicator is contained in a part on the packaging member constituting the non-filling portion. A package with an oxygen indicator, characterized in that the package is arranged in a state in which it cannot come into contact with an object filling part or other members in the packaging container.

  The invention according to claim 2 is the packaging body with an oxygen indicator according to claim 1, wherein the oxygen indicator is in a state in which the oxygen indicator cannot contact with a content filling part or other members in the packaging container. It is arrange | positioned in a part of non-filling part so that it may be covered with the packaging member which comprises, and it may partly communicate with the part of the deoxidation atmosphere in a packaging container.

  The package with an oxygen indicator of the present invention is configured such that the oxygen indicator portion does not contact the contents and other members stored in the packaging container, so that the components of the oxygen indicator do not affect the contents. In this way, the degree of deoxygenation in the packaging container can be accurately displayed.

  Next, embodiments of the present invention will be specifically described with reference to the drawings.

  FIG. 1 is an explanatory view showing a schematic planar state of a packaging body with an oxygen indicator of the present invention, and FIG. 2 is an explanatory view showing a schematic sectional configuration of the packaging body with an oxygen indicator in the form as shown in FIG. .

  The oxygen indicator-equipped package 10 is a package with an oxygen indicator that is used in a packaging container that is in a deoxygenated atmosphere. In general, the content is filled and sealed at least with the contents. It consists of the filling part 3 and the non-filling part 4 provided adjacent to this. And the oxygen indicator 1 is arrange | positioned in the non-filling part 4 in the state which cannot contact with another part.

  As shown in FIG. 1 and FIG. 2, the packaging body with an oxygen indicator 10 includes two packaging members (wrapping films) 11 and 12 that are overlapped, and in some areas, four sides are heat-sealed. The content filling part 3 is provided by being heat-sealed at the part 2, and the non-filling part 4 is provided adjacently via a part of the heat seal part 2 on the outer peripheral part of the content filling part 3. . And the oxygen indicator 1 is arrange | positioned in the state which cannot contact the content filling part 3 and the other part of a packaging container in a part of this non-filling part 4. FIG.

In the example shown in FIGS. 1 and 2, the oxygen indicator 1 is covered with a part of the packaging members 11 and 12 constituting the packaging body in a state in which the oxygen indicator 1 cannot contact the content filling part 3 and other parts of the packaging container. As shown in the figure, an example is shown in which it is arranged so as to partially communicate with the portion of the deoxidized atmosphere in the packaging container in which the package with the oxygen indicator is accommodated.

  The thing of such a structure is produced as follows.

  First, the two packaging members 11 and 12 are overlapped, and then, in a part of the region, the four sides are heat-sealed to form the content filling portion 3, and then adjacent to each other through a predetermined heat-sealing portion. Only the unsealed portion is left with a certain width, and the other sealing portions are cut at the outer peripheral portion, thereby providing the non-filling portion 4 adjacent to a part of the content filling portion. The package body is covered with a part of the packaging members 11 and 12 constituting the package body so as not to contact not only the content filling unit 3 of the package body but also the packaging container for housing the package body. The oxygen indicator is formed so as to partially communicate with the storage space in the packaging container to be disposed, and is arranged in the unfilled portion 4 in an unsealed state.

  Since the non-filling portion 4 is adjacent to the content filling portion 3 filled with the content, the oxygen indicator 1 can be prevented from coming into contact with the content filling portion 3, and oxidation / reduction with respect to the content filled therewith can be prevented. Staining with reagents and the like can be prevented. The size of the non-filling portion 4 needs to be set so as not to touch the content filling portion 3 even if the portion where the oxygen indicator 1 is installed is bent in the direction of the content filling portion 3.

  Further, since the oxygen indicator 1 is disposed so that it partially communicates with the storage space in the packaging container in which the oxygen indicator-equipped package 10 is accommodated, the state of deoxygenation in the storage container is here. It is possible to detect accurately.

  On the other hand, FIG. 3 shows a schematic plan state of a package 20 with an oxygen indicator according to another example of the present invention. The oxygen indicator package 20 has substantially the same configuration as that of the oxygen indicator package 10 shown in FIGS. 1 and 2, but the configuration of the non-filling portion 24 is slightly different.

  That is, the difference is that heat seal portions 22 are also provided at both ends of the non-filling portion 24 where the oxygen indicator 21 is disposed. With such a configuration, it is possible to prevent the unfilled portion 24 from being broken, and to prevent contact between the oxygen indicator 21 and the content filling portion 23, and wear and destruction of the oxygen indicator 21. Moreover, since the non-filling part 24 of such a structure is partly an unsealed part and one end is open, the gas flow is ensured and the function of the oxygen indicator is not hindered.

  As a packaging member constituting the package with the oxygen indicator, it does not react with the oxygen indicator to be arranged in a part of the packaging member, and there is no trouble in observing the change in the hue indicating the oxygen state in the oxygen indicator. Use a material that does not inhibit coloration.

  Examples of such packaging members include paper, synthetic paper, non-woven fabric, or synthetic resin film made of synthetic resin such as polyester, polyamide, polyvinyl alcohol, cellophane, ethylene vinyl alcohol copolymer, polyethylene, polypropylene, polymethylpentene, Or the transparent vapor deposition film etc. which provide the transparent vapor deposition layer which consists of silica, an alumina, etc. on the surface of these synthetic resin films can be mentioned.

  In addition, the oxygen indicator to be arranged in a part of the non-filling portion constituted by such a packaging member may be formed of, for example, an oxygen detection composition mainly composed of an oxygen reduction indicator, a reducing agent, and a binder resin. .

Examples of the redox indicator constituting part of the oxygen detection composition include methylene blue, new methylene blue, neutral red, indigo carmine, acid red, safranin T, phenosafranine, capri blue, nile blue, diphenylamine, xylene cyanol, nitro Examples thereof include diphenylamine, ferroin, N-phenylanthranilic acid and the like.

  Moreover, as a reducing agent, ascorbic acid, ascorbate, erythorbic acid, erythorbate, D-arabinose, D-erythrol, D-galactose, D-xylose, D-glucose, D-mannose, D-fructose And reducing sugars such as D-lactose, and metal salts such as stannous salts and ferrous salts.

  Not only can the deoxygenation state be detected by the change in hue of the redox indicator described above, but the deoxygenation state can also be detected by a change in hue due to color mixing with other color pigments. For this purpose, a colorant can be added to the oxygen detection composition. By adding a colorant and mixing the colors in the oxygen detection composition, for example, when the change in hue of the indicator itself is difficult to visually determine, or when the hue is not desired in design, The hue can be changed to a hue that can be easily determined, or a hue that is desired in design. For the same purpose, a colored packaging member may be applied, and an oxygen indicator made of an oxygen detection composition having the above-described composition may be provided on a part of the unfilled portion.

  Examples of colorants to be added include edible red No. 2 (Amaranth), edible red No. 3 (erythrosin), edible red No. 40 (Arla Red AC), edible red No. 102 (New Coxin), and edible red No. 104 (Phloxine). , Edible Red 106 (Acid Red), and red colorants such as natural cochineal pigments, Edible Yellow 4 (Tartrazine), Edible Yellow 5 (Sunset Yellow FCF), and natural colored red flowers And blue colorants such as Food Blue No. 1 (Brilliant Blue FCF) and Food Blue No. 2 (Indigo Carmine).

  In addition, in order to facilitate the formation of an oxygen indicator in the non-filled portion by coating or printing using an oxygen detection composition having such a composition, various drugs such as, for example, a range that does not affect the color development at the time of oxygen detection, such as Surfactants, varnishes, compounds, drying inhibitors, dryers and the like can also be added.

  As a method of forming and installing an oxygen indicator on a packaging member constituting an unfilled portion using such an oxygen detection composition, a printing method such as a screen printing method, an intaglio printing method, and a gravure printing method, Application methods such as roll coating, spray coating, and dip coating are used.

  FIG. 4 shows an example of the usage pattern of the package 40 with an oxygen indicator according to the present invention. As is clear from the figure, the oxygen indicator packaging 40 is housed in a general-purpose oxygen barrier packaging container 5 made of an oxygen barrier packaging member (oxygen barrier packaging film). The oxygen barrier packaging container 5 is deoxygenated by the action of the oxygen scavenger 6 for the purpose of storing the contents for a long period of time. When a pinhole or a seal failure occurs in the part and the gas barrier property is lowered and oxygen flows into the packaging container, it acts on the oxygen indicator 41 of the packaging body 40 with the oxygen indicator, changes to a predetermined hue, and enters the packaging container. It is possible to visually detect that oxygen has entered.

The package 40 with an oxygen indicator housed in the packaging container 5 has the above-described configuration, but the oxygen indicator disposed in a part of the packaging body 5 has other contents in the contents filling unit and the packaging container. Since there is no contact with a member, for example, an oxygen scavenger or a gas barrier packaging member constituting the packaging container, the contents of the oxygen reduction indicator in the oxygen indicator and the packaging container 5 are constructed. There is no transition to a packaging member.

It is explanatory drawing which shows the schematic planar state of the packaging body with an oxygen indicator which concerns on this invention. It is explanatory drawing which shows the schematic cross-sectional structure of the oxygen indicator shown in FIG. It is explanatory drawing which shows the general planar state of the other example of the package body with an oxygen indicator which concerns on this invention. It is explanatory drawing which shows the usage condition of the packaging body with an oxygen indicator of this invention.

Explanation of symbols

1, 21, 41 ... oxygen indicator 2, 22, 42 ... heat seal part 3, 23, 43 ... content filling part 4, 24, 44 ... non-filling part 5 ... gas barrier packaging container 6 ... oxygen scavenger 10, 20 40 ... Packaging body with oxygen indicator 11, 12 ... Packing member

Claims (2)

  A package with an oxygen indicator that is used in a packaging container in a deoxygenated atmosphere, and is provided with a content filling portion that is filled and sealed with at least the content, and is provided adjacent to this The filling part is composed of a packaging member, and the oxygen indicator is placed on a part of the packaging member constituting the non-filling part in a state where it cannot contact the contents filling part or other members in the packaging container. A package with an oxygen indicator.   The oxygen indicator is covered with a packaging member that constitutes the packaging body in a state in which the oxygen indicator cannot be contacted with the content filling part and other members in the packaging container, and is different from the portion of the deoxygenated atmosphere in the packaging container. It is arrange | positioned in a part of non-filling part so that a part may lead, The package body with an oxygen indicator of Claim 1 characterized by the above-mentioned.

Images