JPH10175675A - Packing body with spout which has deoxygenating function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the taste, the color and the content components of a content from deteriorating by a method wherein for a packaging body with spout comprising a guide tube part, a member having a deoxygenating function is attached to the guide tube part. SOLUTION: This spout 2 is constituted of a discharging part, a fixing part and a guide tube part 7. On the external surface of the discharging part, a thread to attach a cap 9, is provided, and an opening 10 is provided on the top of the guide tube part 7. By attaching a member 11 having a deoxygenating function to the guide tube part 7, the deoxygenating function is provided. As the member 11 having a deoxygenating function, a film wherein an oxygen absorbent is mixed in and kneaded in a polyolefin based resin such as polyethylene, and they are extruded, and a sheet wherein an oxygen absorbent is carried by a resin, etc., and in addition, a bag which is filled with an oxygen absorbent, etc., are used. The fixing part of the spout 2 is fixed to the opening 4 of a packaging body 3 by heat-sealing, and a packaging body 1 with spout having deoxygenating function, is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package having a deoxidizing function, and more particularly to a package with a spout for packaging beverages such as alcohol and juice and gel foods such as jelly.

[0002]

2. Description of the Related Art Conventionally, the presence of oxygen in a package in which food or the like is wrapped has caused the content of the food or the like to be oxidized and deteriorated or discolored. In addition, if insects and microorganisms are present in the package, the microorganisms and the like grow and propagate, causing contamination and decay. In order to solve such a problem, oxygen in the package is removed.

[0003] There are several methods for removing oxygen, and one is vacuum packaging in which the interior of the package is evacuated during packaging. This vacuum packaging is effective for a liquid material or the like that does not need to maintain its shape. However, vacuum packaging does not remove so-called dissolved oxygen already dissolved in the liquid material. Another way is
This is a method in which air in the space inside the package is replaced with a gas containing no oxygen, for example, nitrogen gas. Since this method can make the pressure inside the package equal to the outside air pressure, it is also effective for the packaging of articles that need to maintain its shape. However, in this gas replacement method, the oxygen removal rate is not sufficient, and oxygen remains in the space. Then, as in the above, dissolved oxygen in the liquid is not removed.

[0004] As yet another alternative, oxygen absorbers are widely used. As the oxygen absorbent, those having iron powder as a main component and those having ascorbic acid or a salt thereof as a main component have been put to practical use. Iron powder is mainly used for oxygen absorption by the oxidation reaction of iron. Ascorbic acid-based oxygen absorbers are based on the principle of oxygen absorption based on the consumption of oxygen accompanying the decomposition reaction of ascorbic acid (salt). Have been. As described above, the oxygen absorbent absorbs (consumes) oxygen through the reaction, so that it can not only absorb oxygen in the space almost completely but also absorb dissolved oxygen dissolved in the liquid material. There is.

[Problems to be solved by the invention]

[0005] Recently, there has been an increasing number of packages in which a spout is applied to a package so that drinks, jellies, and the like in the package can be directly consumed. However, none of these packages had a function of removing internal oxygen.

It is conceivable that the above-mentioned spouted package is used by refrigeration or freezing the contents, and the quality of the contents does not deteriorate at low temperatures. However, at the time of filling the contents and at the subsequent distribution stage, the temperature is higher than room temperature, the oxygen existing in the head space inside the package, the dissolved oxygen dissolved in the liquid material causes oxidative deterioration, and microorganisms, etc. It is thought that if they exist, they will breed and decay.

The inventor of the present invention has found that the above-mentioned conventional problems can be solved by using a spout having a deoxidizing function by absorbing the head space inside the package and dissolved oxygen, and have completed the present invention. .

[0008]

According to the present invention, there is provided a package having an opening at an upper portion, a spouting portion, a fixing portion fixed to the opening of the package, and an inner space of the package. A spout-equipped package comprising a spout comprising a conduit part provided as described above, wherein a member having a deoxygenation function is attached to the conduit part.

[0009]

Embodiments of the present invention will be described in detail. FIG. 1 is a partially broken perspective view showing an example of an embodiment of a package with a spout having a deoxidizing function of the present invention. FIG. 2 is a side view showing an example of the embodiment of the spout of the present invention. The spout of the present invention is formed by a spouting section 5, a fixing section 6 and a conduit section 7. A screw 8 is provided on the outer surface of the spout 5 so that a cap 9 can be attached. An opening 10 is provided above the conduit portion 7. This spout is obtained by molding a polyolefin resin such as polyethylene or polypropylene by an injection molding method.

As the member 11 having a deoxidizing function, a molded article having a deoxidizing function, for example, a film obtained by kneading and extruding an oxygen absorbent into a polyolefin resin such as polyethylene, or a resin having an oxygen absorbent carried thereon. A sheet, a bag filled with an oxygen absorbent, or the like can be considered. An object of the present invention is to provide a spouted package with a deoxygenating function by attaching these to a spout conduit 7.

As a method of attaching a molded article having a deoxidizing function to a spout, winding the spout, attaching using a specific part, hanging the spout, and the like can be considered.

As a method for producing a film having a deoxidizing function, a method in which an oxygen absorbent is kneaded and dispersed in an olefin resin such as polyethylene is melt-extruded.

As a method for producing a sheet having a deoxidizing function, an oxygen absorbent is sprayed on a breathable film,
Furthermore, a method of hot-pressing a breathable film to carry an oxygen absorbent, or the like can be considered.

As a method for producing a bag filled with an oxygen absorbent, a conventional method for producing an oxygen absorber can be considered. However,
Since there is a portion that directly touches the contents, the film constituting the bag filled with the oxygen absorbent preferably has both air permeability, moisture permeability and water resistance.

The oxygen absorber which can be used in the present invention may be a known one. For example, in the case of an inorganic system, iron powder is used as a main component, and in the case of an organic system, ascorbic acid, ersorbic acid,
As a main component, a saccharide such as tocophenol, glucose, galactose, fructose, maltose, and cellobiose or a salt thereof, a hydroquinone, a gallic acid, or the like can be used. In particular, when gallic acid having heat resistance is used, thermal deterioration during molding can be suppressed, and a high level of deoxidizing ability can be obtained.

The spout is placed in a package 3 as shown in FIG.
By fixing the spout 2 to the fixing portion 6 of the spout 2 by heat sealing or the like in the opening 4, the spouted package 1 having a deoxidizing function can be obtained. At this time, the lower end of the conduit portion 7 is set to have a length near the bottom of the package 3. The inner surface of the package 3 is formed of a heat-sealable resin, for example, a polyolefin-based resin such as polyethylene or polypropylene, or a polyester-based resin so that the spout-fixed portion can be heat-sealed.
Further, since the package needs gas barrier properties, it is preferable to provide an aluminum foil, a film on which aluminum, alumina, silicon oxide, or the like is deposited in the layer.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below. <Example> A spout with a deoxygenating function was produced as follows. Polyethylene (LC720: A20090
= 35: 15) and gallic acid mixed at a ratio of 1: 1. Master batch A, polyethylene (LC720: A20090 =
35:15) and sodium carbonate 1: 1 mixed, after mixing A and B 1: 1, both outer layers were made of polyethylene (LC720: A20090
= 7: 3) co-extrusion at an extrusion temperature of 14
This was performed at 0 ° C. to produce a film having a thickness of 400 μm. This film was wound around a spout having a length of 70 mm, an outer diameter of 6 mm and an inner diameter of 4 mm, and was fixed with a plastic ring so as not to be detached. The spout was attached to a package containing aluminum.

<Comparative Example> The same as the embodiment except that a normal spout (without a deoxygenating function) was used.

In the package with spout of Example and Comparative Example, 1
It was filled with 00% orange juice and stored at 30 ° C. for one month. The headspace oxygen was compared and evaluated for the residual oxygen concentration, dissolved oxygen concentration, vitamin C amount, and degree of browning. Measurement of residual oxygen concentration and dissolved oxygen concentration: Measured by Iijima Electronic Industry RO-102. Measurement of Vitamin C Amount A calibration curve was created from known ascorbic acid concentrations using Hitachi High Performance Liquid Chromatography L6000 to calculate the amount of vitamin C. Measurement of degree of browning: The absorbance at 430 nm was measured.

[0020]

[Table 1]

As can be seen from this table, in the example, the deoxygenating function worked, and oxygen in the pouch could be absorbed. As a result, deterioration in the amount of vitamin C and the degree of browning is suppressed.

A taste test after storage for one month was performed on the sample of the above example and the sample of the comparative example. When 10 panelists tested which of the example and the comparative example had better taste, eight out of ten panelists answered that the example was better. From these results, it was found that the contents filled in the package having the deoxidizing function prevented the deterioration of the content components, and as a result, the taste was also prevented from deterioration.

[0023]

According to the present invention, there is provided a package having an opening at an upper portion thereof, a spouting portion, a fixing portion fixed to the opening of the package, and a conduit portion provided to extend into an internal space of the package. In a spout-equipped package constituted by spout, by providing a spout-equipped package having a deoxygenation function characterized in that a resin having a deoxygenation function is attached to the conduit portion, the taste of the contents, color, It can be stored without deteriorating the content components.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view showing an embodiment of a package with a spout having a deoxidizing function of the present invention.

FIG. 2 is a side view showing an embodiment of the spout of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Package with spout 2 ... Spout 3 ... Package 4 ... Opening 5 ... Pour out part 6 ... Fixing part 7 ... Conduit part 11 ... Deoxygenation Functional members

Claims (1)

[Claims] A package having an opening at an upper part thereof;
In a spout-attached package constituted by a spout consisting of a fixing portion fixed to an opening of a package and a conduit provided to extend into an internal space of the package, the conduit has a deoxygenation function. A package with a spout having a deoxidizing function, wherein a member is attached.