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Container superior in air-tightness and a method of keeping gas molecules or volatile components in the container

a technology of air tightness and container, applied in the field of containers, can solve the problems of low gas permeation properties of metal foil laminated films, inability to keep bottles air tight, and difficulty in ensuring the sealing effect, and achieve the effect of superior gas-barrier properties

Inactive Publication Date: 2015-03-12
NANO JET JAPAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention allows for the filling of containers with gas molecules, liquid substances, or metal granules that can absorb gases. The container is then vacuum packaged with a metal foil laminated film, which prevents gas molecules from escaping for several or dozens of times longer than if the gas molecules were simply put in the container. This results in a longer lifespan for the gas molecules.

Problems solved by technology

It is known to public that such bottle is not capable of keeping air-tightness at the same level as the traditional bottles.
This is because a polyethylene terephthalate bottle, which although broadly used as a container for beverage, does merely allow hydrogen molecules to be lost from the bottle within several days.
Otherwise even when kept longer, concentrations of hydrogen molecules gradually become lower, leading to be problematical in terms of quality.
Thus, it is needed to provide vacuum-packaging using a metal foil laminated film which is low in gas permeation properties.
A container used for drip is generally made of polyethylene and polyethylene resin is high in gas permeation rate, so that hydrogen molecules are completely lost from the container approximately within two days.
Besides, aluminum foil cannot be applied to the container since a solution in the container must be seen through from the outside of the container.

Method used

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Examples

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example 1

[0051]FIG. 1 shows an example of the present invention. Filled up to a mouth of a bottle 1(the container), capacity of 500 cc, made of polyethylene terephthalate was a hydrogen molecules dissolved water 2 dissolving hydrogen molecules at concentration of approximately 1000 ppb. The polyethylene terephthalate bottle 1 was packed with an aluminum foil laminated film 3 and vacuum packaged, so that the film 3 was tightly adhered to the bottle 1, thereby achieving a container A containing hydrogen water and superior in air-tightness. Reference numeral 1a designates a cap (made of polyethylene) for the polyethylene terephthalate bottle 1.

[0052]Ten containers A superior in air-tightness were manufactured by packing the polyethylene terephthalate bottle 1 filled with the hydrogen water with an aluminum foil laminated film 3, and vacuum packaging the same. And the package was opened one by one every few days to measure concentration of hydrogen in the hydrogen water. Table 1 shows the result...

example 2

[0059]FIG. 3 shows a container A′ containing hydrogen water and superior in air-tightness which container is provided by that a bottle 1 made of polyethylene terephthalate was, similarly to FIG. 1, packed with an aluminum foil laminated film 3 and then vacuum packaged at vacuum of −760 mmHg. And a label 4 was put on at the upper part of the aluminum foil laminated film packaging 3 and there is written an indication 5 such as the name of contents of the polyethylene terephthalate bottle, the date of bottling, deadline for consumption, etc. Reference numeral 6 is a hole for suspending the whole package of bottle.

example 3

[0060]A bottle 1 made of polyethylene terephthalate provided in a similar manner to Example 1 was packed with a copper foil laminated film and vacuum-packaged to cause the film to adhere to the bottle 1, thereby obtaining a container containing hydrogen water and superior in air-tightness. Ten such containers were prepared and dissolved hydrogen was measured in a similar manner to Example 1. As shown in table 1, concentration of hydrogen molecules did not change even after 20 days passed.

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Abstract

A bottle made of polyethylene terephthalate does likely undergo that a gas having a small molecular weight or volatile component escapes from the bottle in a short time in comparison with a glass bottle, steel can, and aluminum can. For a countermeasure, a simple operation prevents hydrogen molecules, helium gas, and volatile component from scattering and being lost. A container filled with gas, or liquid or viscous fluid in which gas is dissolved, or metal granules adsorbing gas is given a cap, and then, the whole of the container including the cap is packed with a metal foil laminated film superior in gas-barrier properties to be vacuum packaged.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a container, such as a bottle or a film-use type container, which container is to be filled with gases such as hydrogen molecules (molecular hydrogen. Molecular formula H2), helium gas, or smell components, a liquid, a viscous fluid, or a solid body containing any of these gases, and is further given a cap or sealed, and the whole of the container including the cap or the seal is packed with a metal foil laminated film superior in gas-barrier properties to be vacuum packaged, thereby preventing permeable gases such as hydrogen molecules of small molecular weight from scattering and being lost. The invention does relate also to a method of keeping air-tightness of the container. Herein, keeping air-tightness includes also restraining specific molecules from scattering and being lost through permeation. Oxygen gas, carbonic acid gas, and, nitrogen gas larger in size than hydrogen molecules possibly evaporate and volatilize t...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D77/04B65B5/04
CPCB65B5/045B65D77/0406B65D77/04B65D81/20B65B31/00
Inventor KISHIMOTO, TADASHINAKAMOTO, KENJIHARADA, HIROSHIOHTA, SHIGEO
Owner NANO JET JAPAN
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