JPS60183374A - Manufacture of deoxidized sealed package - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a method for producing oxygen-free sealed packages, and its object is to provide a method that can simultaneously perform oxygen-free sealing treatment on a large number of packages.

In recent years, pharmaceutical tablets or capsules, small metal parts, etc., hermetically packaged in plastic bags or films have been commercially available. Some of these items to be packaged may deteriorate in quality due to oxidation, or some metal parts may generate rust, so vacuum packaging, gas exchange packaging, etc. are generally used as deoxidation treatments, but neither method is suitable. However, it is difficult to reduce the oxygen inside to zero.

Recently, an oxygen scavenger has been developed and is commercially available, and when it is sealed inside a sealed package, it is possible to maintain a low oxygen state of 0.1% or more, which oxidizes oil-based foods. It is widely used for prevention of mold growth in high-moisture foods, insect repellent for fur, etc.

In order to prevent these oxygen absorbers from adhering to or mixing with the packaged items, a certain amount of these oxygen absorbers is generally sealed in a gas-permeable bag, and this is placed in a single sealed packaging bag together with the packaged items. Although it is sealed, it is not preferable to use one piece inside a sealed packaging bag because it increases the cost.

In addition, sealed packaging bags with small internal volume require more oxygen absorber than the required amount, which is uneconomical.
If various bags were used in which the amount of oxygen scavenger was changed depending on the internal volume, the work of enclosing the oxygen scavenger would be complicated and the cost would further rise.

As a result of research to improve the above-mentioned conventional drawbacks, the present inventor has
As stated in the claims (by having the configuration 1)
We were able to obtain a method that can deoxidize a large number of sealed packaging bags using just one oxygen absorber.

That is, in the present invention, a plurality of objects to be packaged are placed between two plastic films at appropriate intervals, an oxygen absorber is placed between them, and the oxygen absorber and the plurality of objects are separated from each other. At the same time, the outer peripheral edges of the two plastic films are sealed and honeymooned, so that all the interiors of the plurality of small sections are in a hypoxic state. 1. A method for producing a sealed oxygen-absorbing package, which comprises: sealing a communication portion that communicates a plurality of small compartments and an oxygen absorber with each other.

FIGS. 1 and 2 show an example of a package obtained according to the present invention, and the present invention will now be explained with reference to these illustrated examples. A plurality of cylinders of packaged objects (M) are arranged at equal intervals on the plane of the plastic film 1, and an oxygen absorber enclosing bag 2 (hereinafter simply referred to as an oxygen absorber) is placed in a part of the plastic film 1. After placing the film 1', which is the same as the plastic film 1, on this -F section, the plurality of items to be packaged (M) are placed at equal intervals vertically and horizontally. A seal portion 3 is provided to form a small section 4 for each item (M) to be packaged. The films on the front and back sides may be of the same or different quality, as long as they can be sealed.

In this case, the plurality of vertical and horizontal seal sections 3 each form a communication section 5 between the vertically and horizontally adjacent small sections 4, and also communicate with the oxygen absorber 20 sections. After forming the portion 5 to form the seal portion 3, the outer peripheral ends of the two plastic films 1, 1' are sealed to seal.

The plastic film 1゜1' used in the present invention is preferably transparent so that the packaged object (M) can be visually recognized from the outside. Use a polyvinylidene chloride coated film laminated with heat-sealable polyzolopyrene and polyethylene. However, the present invention is not limited to the above-mentioned plastics, and other translucent films may be used.

As described above, the insides of the plastic films 1 and 1' whose outer peripheral ends are sealed are isolated from the outside air, and the plurality of small compartments 4 are all communicated with the oxygen scavenger 2 through the communication portions 5 (4). Therefore, the oxygen in the plurality of small change compartments 4 is gradually adsorbed by the oxygen scavenger 2, and finally the oxygen concentration inside the plurality of small compartments 4 is reduced to approximately 0.1%. Moreover, deoxidation in this case depends on the number of small compartments 4, but can be done in a short time, about 1 day.In the illustrated example, there is one deoxidizer 2, but if necessary, two deoxidizers 2 can be used. You may use more than that.

After all of the plurality of small compartments 4 are deoxidized as described above,
The seal portion 3 between the small sections 4 and all communication portions 5 of the seal portion 3 between the oxygen absorber 2 and the small section 4 are sealed to form the small section 4.
By sealing and shutting off each section, it is possible to deoxidize a plurality of four small sections at once.

Also, when using the packaged item (M), use it vertically.

It is only necessary to remove one piece by cutting at the lateral seal portion 3, and in this case, the anoxic state of the other packaged items (M) can be maintained as is.

According to the present invention, one type of oxygen absorber 2 can be prepared and used with a time determined based on the number of items to be packaged (M) designed in advance and the size of the small compartment 4; Since there is no need to enclose an oxygen absorber in each small section 4, workability is good, efficiency is improved, and costs can be reduced.

Further, in the present invention, the vertical and horizontal seal portions 3 can be formed separately, and the outer peripheral end portion can also be sealed separately, but it is also possible to perform the sealing continuously by an in-line method.

That is, after mechanically arranging a plurality of items to be packaged (M) at equal intervals on the plastic film 1 and arranging the oxygen absorber,
The upper part of the plastic film 1' is covered along the line, and the plurality of seal parts 3 in the vertical and horizontal directions are heat-sealed at once, leaving a communicating part 5. At the same time, the outer peripheral edge of the plastic film 1°1' is heat-sealed. can do.

Furthermore, after a certain period of time has passed and the entire inside of the small compartment 4 is brought into a hypoxic state, it is possible to heat-seal the large number of communication portions 5 formed between the small compartments 4 all at once. Therefore, there is also the effect that the efficiency of sealed packaging work can be further improved.

In addition, an indicator that changes color depending on the oxygen concentration is enclosed inside the plurality of small sections 4 together with the packaged object (M), or an indicator is contained on the inner surface of the plastic film 1 or 1' forming the small sections 4. By printing with ink, it is possible to check for small amounts of oxygen passing through the plastic films 1 and 1'. For example, if the material of the silastic film 1, 1' has a high oxygen permeability, the indicator will change color in a relatively short time, and if the material has a low oxygen permeability, it will be able to maintain a low oxygen state for a long time. This has the effect of being able to predict deterioration of the packaged object (M).

(7) As described above, the present invention arranges a plurality of packages requiring deoxidation on a plastic film, arranges an oxygen absorber, and connects the plurality of packages to the oxygen absorber. After forming a section and dividing it into a plurality of small sections, and after all of these plurality of small sections are in a hypoxic state, the communication section is sealed, and one or two oxygen scavengers are used to separate the plurality of sections. Since all of the small sections can be brought into a low oxygen state at once, the workability is good and packaging work can be made more efficient, which is extremely effective in reducing costs.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an example of a packaged product obtained by the present invention, and FIG. 2 is a sectional view of a main part of a seal portion. 1.1 Niblast film, 2: Oxygen absorber enclosing bag,
3: Seal portion, 4: Small section, 5: Communication portion. (8) ￥71 Engaku 2

Claims (1)

[Claims] A plurality of objects to be packaged are arranged at appropriate intervals between two plastic films, an oxygen absorber is further placed thereon, and a communication portion is provided to communicate between the oxygen absorber and the plurality of objects to be packaged. At the same time, the outer peripheral edges of the two plastic films are sealed and sealed, and after the interior of the plurality of small sections is all in a hypoxic state, A method for producing a sealed package for deoxidizing oxygen, characterized by sealing a communication portion that communicates a small compartment of the oxygen absorber with an oxygen absorbing agent.