JPS649214B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention is particularly applicable to products that require prevention of damage over time, such as Japanese clothing, leather products, arts and crafts, ancient documents, etc.
The present invention relates to a preservation method that enables long-term preservation of hanging scrolls, cameras, swords, etc., easily and reliably using household appliances and commercially available gas cylinders.

[Conventional technology]

In general, various methods have been used for long-term preservation of items that need to be protected from damage over time, especially expensive Japanese clothes, leather products, arts and crafts, ancient documents, hanging scrolls, cameras, and swords. There is.

For example, when preserving Japanese clothes for a long period of time, the main points that must be kept in mind are generally eliminating insect damage, preventing moisture, and preventing the growth of mold.In addition to these points, in addition to these points, it is necessary to prevent creases caused by folding as much as possible. In order to satisfy these requirements, conventionally, Japanese clothes are stored in Japanese dance clothes along with insect repellent, desiccant, or mold repellent.

[Problem that the invention seeks to solve]

However, with the conventional preservation methods mentioned above, the Japanese dance itself is not necessarily sealed, so the insect repellent may evaporate after long-term storage, making it impossible to prevent insect damage.
The medicinal odor of the insect repellent remains on clothing and cannot be easily removed, causing discomfort when worn.Therefore, the medicinal odor must be removed by drying in the shade before reuse, which is a hassle. .

In addition, since the storage location is usually a cool, dark place, the desiccant loses its hygroscopicity in a short period of time, and may become a source of moisture, or even a small amount of fat, protein, etc. may remain. And this fat,
It has disadvantages such as the growth of mold due to the use of proteins as nutrients, making it unreliable and requiring frequent inspection and management during storage.

On the other hand, relatively expensive portable items such as leather handbags are usually stored in cardboard cases, but they have almost the same problems as Japanese clothing.

Furthermore, in addition to the above-mentioned problems, there is also the problem of rust when preserving arts and crafts, ancient documents, hanging scrolls, cameras, swords, etc. for a long time.

This invention was made to improve these conventional problems.The above-mentioned preserved items are stored in a heat-resistant, non-ventilated container, and after the storage opening is sealed, the air inside the container is removed. To provide a preservation method which can obtain a condition suitable for long-term storage by replacing with fluorocarbon gas, and can easily and reliably achieve this preservation condition at home.

[Means for solving problems]

In the preservation method according to the present invention, an article to be preserved is stored through an article accommodating opening of a heat-resistant, non-air permeable container.

The article storage opening is sealed.

Exhaust means is connected to an opening provided in the container and has an on-off valve that is kept closed at all times except when supplying air to and from the outside of the container, and the on-off valve is opened while remaining in the container. Exhaust the air to maintain low pressure inside the container.

Furthermore, the on-off valve is opened again to fill the container with fluorocarbon gas from the fluorocarbon gas cylinder, thereby replacing the inside of the container with a fluorocarbon gas atmosphere.

[Effect]

In this invention, after the stored items are stored in the container through the storage opening of the container, the storage opening is sealed, and then the suction hose of a household electric vacuum cleaner is connected to the opening of the container to exhaust the inside of the container. After that, the container is filled with chlorofluorocarbon gas and the article is stored in a fluorocarbon gas atmosphere, so handling is easy, the product is highly safe, and the intended storage material can be preserved for a long period of time.

〔Example〕

FIGS. 1 and 2 are front views showing an example of a container structure for carrying out the method of the present invention, with a portion cut away, showing the state of Japanese clothes before and after storage, respectively, as preserved items. In these figures, the container 10 has a size that can completely cover the folded Japanese clothes (hereinafter referred to as preserved articles) A, and has a bag-like shape with an opening 11 for storing preserved articles formed at one end. ing.

The container 10 is a sheet 1 with high heat resistance and air impermeability.
It has a two-layer structure in which a hot-melt layer 10B coated or laminated with a highly adhesive sheet 10B that is heated and melted on the inside of 0A.

As the heat-resistant and air-impermeable sheet 10A, a polyamide-based resin sheet (6.6 nylon, 6 nylon) having heat-resistant strength is recommended, and polyethylene or the like is recommended as a sheet that can be heated and melted to have high adhesiveness, that is, a hot melt layer. be done.

In a container 10 consisting of a front part 10a and a back part 10b facing each other, an opening 13 is formed at the center in the width direction, which is offset to the other end of the front part 10a. As shown, an on-off valve 1 is provided with a valve body 15 which is always biased toward the outside of the opening in a closed state by a spring 14 and can be automatically opened by inserting a nozzle, which will be described later.
6 is interposed.

Therefore, in order to store the article A in the container 10 according to the configuration of this embodiment, the article A is first inserted into the container 10 through the storage opening 11 shown in FIG. 1, and the article A is completely covered.

Next, using a household iron, remove the hot melt layer 1 closest to the open end of the clothing storage opening 11.
The surface of the sheet 10A with high heat resistance and air impermeability corresponding to 0B is heated and pressurized, thereby welding the hot melt layer 10B and sealing the sheet 10 as shown in FIG.
B′ to do.

Next, as shown in FIG. 5, a nozzle 18 as an attachment is connected to the suction passage 17 of the household electric vacuum cleaner (of course, other attachments may be used). By inserting and holding this nozzle 18 into the opening 13, opening the valve body 15 of the on-off valve 16, and starting the vacuum cleaner, the sealed space 10 of the container 10 is
The air present in X is exhausted and the inside of the container 10 is brought into a low vacuum state.

In such a low vacuum state, the surface portion 10 of the container 10
a and the back part 10b are in substantially close contact with the surface part of the preserved item A,
Moreover, in the area that does not come into close contact with the preserved item A, the front part 1
This can be confirmed by the fact that 0a and back portion 10b are in close contact with each other.

When the sealed space 10X of the container 10 reaches a low vacuum state, the nozzle 21 is quickly removed from the opening 13. In synchronization with this extraction operation, the valve body 15 of the on-off valve 16 is held closed by the springs 14, so that the low vacuum state of the sealed space 10X is maintained.

Furthermore, the dispensing nozzle of a gas cylinder (not shown) filled with fluorocarbon gas is inserted and held in the opening 13 to open the valve body 15 of the on-off valve 16, and the opening reaction force at the time of opening the valve is Therefore, the cylinder is opened, and the container 10 maintained in a low vacuum state is filled with fluorocarbon gas, and the interior, that is, the sealed space 10X, is replaced with a fluorocarbon gas atmosphere.

After removing the gas cylinder and closing the on-off valve 15 in synchronization with this, the gas cylinder may be appropriately stored in, for example, a Japanese dance or a storage container prepared separately.

Freon gases include R11, R12, R22, R114,
RC318 and the like are recommended, and RC318 is the most preferred because it has characteristics that attract attention for use in food aerosols.

In this way, by replacing the inside of the envelope body 10 with fluorocarbon gas and sealing it, it is possible to prevent the propagation of not only anaerobic bacteria but also aerobic bacteria, thereby achieving an insect-proofing effect. Furthermore, the growth of mold and the invasion of pests are prevented, and there is no medicinal odor.

In addition, since the container 10 uses a sheet 10A with high air impermeability, that is, a sheet 10A with high gas barrier properties, naturally occurring freon gas is prevented from leaking, and long-term storage can be achieved.

Furthermore, even if the article A is stored in a stacked state in a Japanese dance or storage container in the above-mentioned sealed state, wrinkles do not occur in the article A because the sealed chlorofluorocarbon gas functions as a gas cushion.

The packaging body 10 used in carrying out the present invention is not limited to one in which the inner layer sheet 10B is formed as a hot melt layer. Two layers of sheets coated or laminated,
The hot melt layer 10B may be formed on the inner circumferential surface of the accommodation opening 11, that is, on the inner circumferential surface of a highly air-impermeable sheet.

In addition, as a highly heat-resistant sheet, instead of the polyamide resin sheet described in the above example, a fluororesin sheet, a metal foil sheet such as aluminum foil,
Woven cloth, paper, etc. may also be used. However, the metal foil sheet and the woven fabric need to form the container 10 as a laminated structure with at least a sheet having high air impermeability.

Furthermore, in the embodiment, the hot melt layer 10B
Although the structure is described in which the entire back surface of the sheet 10A, which has high heat resistance and air impermeability, is coated, it may be formed locally as long as welding and sealing is possible.

On the other hand, the present invention can be practiced even if one opening 13 is provided on the back side 10b of the container 10 instead of on the front side 10a.

In addition, by forming two openings 13 on the front part 10a or the back part 10b and having an on-off valve 16 interposed in each of these openings 13, one opening 13 can be used for household electric cleaning. The opening 13 may be used for attaching and detaching a nozzle 18 connected to the suction passage 17 of the container, and the other opening 13 may be configured for attaching and detaching a nozzle for dispensing a freon gas cylinder. In this case, container 1
This makes it easier to replace the sealed space 10X with a fluorocarbon gas atmosphere.

In the above embodiments, Japanese clothing is used as the stored item A, but in this invention, the stored item A is not limited to Japanese clothing only, and by changing the shape and size of the container 10, leather, leather, etc. It can also be applied to preserved items that require long-term preservation to avoid damage over time, such as products, arts and crafts, antique books, hanging scrolls, cameras, and swords. Freon gas has a remarkable rust-preventing effect on metal products such as metal products.

(Effects of the Invention) As explained above, according to the present invention, the storage opening of a heat-resistant and non-ventilated container is sealed, and then the air in the sealed space is discharged. This can be easily done using a vacuum cleaner.

Moreover, the CFC gas sealed in the cylinder is then sealed as a liquefied gas, but because this gas has a low pressure, it is handled more easily than high-pressure inert gases such as hydrogen, helium, argon, and nitrogen. It is easy and safe, and therefore, replacing fluorocarbon gas in a sealed space can be easily performed at home. In addition, it prevents not only aerobic bacteria but also anaerobic bacteria from propagating, exhibiting an insect repellent effect, and preventing the growth of mold and the invasion of pests. Furthermore, leather products, arts and crafts, ancient documents, hanging scrolls, cameras, swords, etc. can be preserved for a long period of time, and in particular, it exhibits a remarkable rust-preventing effect on metal products such as cameras and swords. Furthermore, since fluorocarbon gas has the characteristics of non-twisting, non-flammability, odor and non-toxicity, there is no risk of fire or gas poisoning.

Therefore, it can be carried out safely at home without leaving it in the hands of a professional, and since spontaneous gas leaks do not occur, there is an advantage that preserved items can be effectively preserved for a long period of time.

[Brief explanation of drawings]

FIGS. 1 and 2 are cutaway front views showing the container structure for carrying out the method of the present invention before and after storing Japanese clothes used as preserved items, respectively, and FIG. FIG. 4 is an enlarged sectional view showing an example of the welded and sealed state of the hot melt layer, and FIG. 5 is an explanatory view showing an example of an attachment used for air discharge. 10...Container, 11...Accommodating port, 13...Opening, 16...Opening/closing valve, A...Preservation item.

Claims (1)

[Claims] 1. After storing the stored material through the article storage opening of a heat-resistant and non-breathable container and sealing the article storage opening, a valve is provided in the container and is kept closed at all times except when air is being supplied to and from the outside of the container. An exhaust means is connected to the opening in which the on-off valve is interposed, and while the on-off valve is opened, the air present in the container is exhausted to maintain a low pressure inside the container, and the on-off valve is opened again. A method for preserving an article, comprising: filling the container with fluorocarbon gas from a fluorocarbon gas cylinder, and replacing the inside of the container with a fluorocarbon gas atmosphere.