JPS649213B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a method for preserving articles, and more specifically, to methods for preserving articles, such as Japanese clothes, leather products, antique works, ancient documents, hanging scrolls, etc., which require prevention of damage over time. The present invention relates to a method for preserving items such as cameras and swords that can be easily and reliably stored for long periods using equipment used in general households.

[Conventional technology]

In general, various methods have been used for the long-term preservation of items that need to be protected from damage over time, especially items such as expensive Japanese clothes, leather products, antique works of art, old documents, hanging scrolls, cameras, and swords. being done.

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.

Furthermore, since the Japanese clothes are stacked inside the Japanese dance while housed in tatami paper, the Japanese clothes on the lower row are constantly pressed down, causing problems such as wrinkles. In other words, there is still no reliable means for long-term storage of Japanese clothing.

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

Furthermore, although various efforts have been made to preserve antique works of art, ancient documents, hanging scrolls, cameras, swords, etc., insect damage and rust cannot be reliably prevented.

For this purpose, after storing the above-mentioned items in a highly air-impermeable storage bag made of a synthetic resin sheet, for example, the storage opening is sealed and the inside of the storage bag is replaced with a protective gas such as an inert gas. There are ways to store it.

Although the above-mentioned problems can be solved by placing the stored items in a protective gas atmosphere, the opening used to exhaust the air inside the storage bag, that is, the front surface of the storage bag. When exhausting the air inside the storage bag by connecting the suction passage of an air exhaust means (for example, a household electric vacuum cleaner) to the opening formed in at least one of the (outer material) or the back (lining), As the inside of the storage bag is reduced to a low vacuum, the inner end of the opening comes into close contact with the stored item, resulting in poor exhaust conditions.

As a result, the inside of the storage bag does not reach the desired low vacuum state, and a relatively large amount of oxygen remains. Therefore, even if the protective gas is introduced into the storage bag where oxygen remains, the inside of the storage bag is not replaced with the protective gas, resulting in the problem that long-term storage cannot be achieved.

This invention was made in order to improve such conventional problems, and the air inside the storage bag can be easily, reliably and smoothly discharged, and
It is an object of the present invention to provide a method for preserving an article in which a protective gas is introduced smoothly and a long-term preservation of the article can be achieved.

[Means for solving problems]

The method for preserving an article according to the present invention includes storing the article through the article accommodating opening of a heat-resistant and air-impermeable packaging body, welding and sealing the hot melt layer on the inner circumferential surface of the article accommodating opening, and then Exhaust gas is discharged through at least one opening provided with an on-off valve that is provided on at least one of the opposing front and back sides of the bag body and is kept closed at all times except when supplying air to and from the inside and outside of the bag body. While opening the opening/closing valve by connecting means to open the on-off valve, the inside of the opening is inserted into the space formed by the breathable core holding sheet attached to the inner surface of the one including the opening and the one. The air present in the sealed space of the envelope body is exhausted through an air supply/exhaust system passage containing a breathable core material having a portion corresponding to the end thereof. to maintain the sealed space at a low pressure, and then open the on-off valve again to fill the sealed space with the product protection gas from the product protection gas cylinder through the supply/exhaust system passage, making the sealed space an atmosphere of the product protection gas. I am trying to replace it.

[Effect]

In this invention, by connecting the suction passage of the exhaust means to the opening of the storage bag, that is, the packaging body, and discharging the air inside the packaging body, the inside of the packaging body is reduced to a low vacuum. Therefore, even if the front and back sides of the packaging body are in close contact with the stored item, and the inner end of the opening is pressed against the stored item, the breathable core material
Communication between the inside of the envelope and the opening is ensured through the breathable core holding sheet, and the opening is not closed at its inner end, so you can connect the suction hose of a household electric vacuum cleaner. The simple operation of suctioning
The air inside the wrapping bag can be reliably discharged.

Further, the housing opening is sealed by welding the hot melt layer by applying heat and pressure using a household iron.

〔Example〕

FIGS. 1 and 2 are partially cutaway front views showing the state of Japanese clothes before and after storage, respectively, as an example of the storage bag structure for carrying out the method of the present invention, and FIG. FIG. 1 is a longitudinal side view taken along the line - in FIG. Mouth 1
It has a bag-like shape.

The packaging body 10 has a two-layer structure in which a sheet 10A having high heat resistance and air impermeability is coated or laminated with a sheet 10B having adhesive properties by heating and melting, that is, a hot melt layer 10B.

A polyamide resin sheet (6.6 nylon, 6 nylon) having heat-resistant strength is recommended as the heat-resistant and air-impermeable sheet 10A, and a polyethylene sheet or the like can be used as the hot-melt layer 10B, which has adhesive properties when heated and melted. is recommended.

In the front part 10a and the back part 10b of the packaging body 10, which face each other, an opening part 13 is formed at the center in the width direction toward the other end of the front part 10a. Spring 1 as shown in
4, an on-off valve 16 is provided which has a valve body 15 which is always biased toward the outside of the opening and maintained in a closed state, and which can be automatically opened by inserting a nozzle, which will be described later.

Reference numeral 17 indicates a breathable core material holding sheet, which in this embodiment is made of a belt-shaped synthetic resin sheet, and has a plurality of small through holes 17a at appropriate intervals in the longitudinal direction at the center in the width direction. This makes it breathable.

The breathable core holding sheet 17 has its peripheral edge 17b attached to the inner surface including the opening 13 formed in the front surface 10a of the packaging body 10 by, for example, high-frequency welding. In a space 18 formed by the breathable core material holding sheet 17 and the front part 10a of the packaging body 10, an air supply/exhaust system passage 30 in which a breathable core material 19 is housed is provided.

The breathable core material 19 is formed into a band shape of non-woven fabric, and is housed in a state having a portion 19A corresponding to the inner end of the opening 13.

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

Next, using a household iron, remove the hot melt layer 10B closest to the open end of the clothing storage opening 11.
The surface of the highly heat-resistant sheet 10A corresponding to the above is heated and pressurized, thereby welding the hot melt layer 10B and sealing as shown in FIGS. 2 and 5.

Since this sealing treatment is performed by directly heating the highly heat-resistant sheet 10A with an iron, the hot-melt layer 10B can be welded while suppressing thermal shrinkage, the so-called shrinkage phenomenon, caused by excessive heating. A reliable seal with high sealing performance can be obtained.

Next, as shown in FIG. 6, a nozzle 21 as an attachment is connected to the suction passage 20 of the household vacuum cleaner (of course, other attachments may also be used). By inserting and holding this nozzle 21 into the opening 13, opening the valve body 15 of the on-off valve 16, and starting the vacuum cleaner, the air existing in the sealed space 10X of the packaging body 10 is discharged. And wrapping body 10
Create a low vacuum inside.

The air existing in the sealed space 10X of the packaging body 10 passes through the space 18 from the plurality of through holes 17a of the breathable core material holding sheet 17, passes through the on-off valve 16 held in the open state, and is then opened. It is discharged from section 13.

During this discharge process, as the degree of vacuum in the sealed space 10X increases, the front part 10a and the back part 10b of the packaging body 10 are pressed against the outer surface of the article A.

As a result, the article A is indirectly pressed against the inner end of the opening 13, and a force that tries to close the opening 13 from the inside acts. Since the portion 19A of 19 corresponds, the opening 13 is virtually not closed.

Furthermore, as the degree of vacuum increases,
Although the space 18 is reduced and the breathable core holding sheet 17 is pressed against the article A,
The sealed space 10X of the packaging body 10 communicates with the opening 13 via a plurality of through holes 17 and a breathable core material 19.

Therefore, the sealed space 10X is reliably and smoothly reduced to a low vacuum.

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

Further, a dispensing nozzle of a gas cylinder (not shown) filled with an inert gas such as fluorocarbon gas, helium gas, argon gas, nitrogen gas, or carbon dioxide gas, that is, an article protection gas, is inserted and held in the opening 13, The valve body 15 of the on-off valve 16 is opened, and the cylinder is opened by the valve-closing reaction force when the valve is opened, and inert gas is filled into the packaging body 10 which is maintained in a low vacuum state. Then replace the inside with an inert 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.

The article-protecting gas is filled from the gas cylinder through the opening 13, through the on-off valve 16, and through the supply/exhaust system passage 30. That is, by passing through the breathable core material 19 and the space 18 and reaching the plurality of through holes 17a of the breathable core material holding sheet 17, air is discharged reliably and smoothly in the same manner as in the above-mentioned air evacuation.

In this way, the inside of the packaging body 10 is replaced with inert gas, and the hot melt layer 1 on the inner periphery of the storage opening 11 is replaced.
By welding 0B, article A can be completely shielded from oxygen. Therefore, the growth of mold, the invasion of pests, etc. are prevented, and there is no medicinal odor.

Moreover, the wrapping body 10 is made of a highly non-air permeable sheet 1.
Since 0A, that is, sheet 10A with high gas barrier properties is used, naturally occurring inert gas leakage is prevented and long-term storage can be realized.

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 will not occur in the article A because the sealed inert gas functions as a gas cushion.

On the other hand, when the article A stored in the above-mentioned state is taken out from the packaging body 10 and worn, the gap between the welded and sealed hot melt layer 10B' and the unwelded single hot melt layer 10B (the Figure 5
If the article A is to be stored again after the garment A is removed by appropriately cutting the garment A, the article A is completely covered with the wrapping body 10 in the manner described above, and then the unwelded hot melt layer 10B is welded and sealed. Just stop it.

The packaging body 10 used in the embodiment of the present invention is not limited to one in which a hot melt layer is formed on the inner layer sheet 10B, which is made up of two layers of sheets 10A and 10B, and the inner surface of the sheet with high heat resistance is non-stick. A hot melt layer 10 is formed on the inner circumferential surface of the clothing storage opening 11, that is, on the inner circumferential surface of the highly non-breathable sheet.
It may also be one in which B is formed.

In addition, as a highly heat-resistant sheet, a fluorine resin sheet, a metal foil sheet such as aluminum foil, a woven cloth, paper, etc. may be used instead of the polyamide resin sheet described in the above embodiment. However, the metal foil sheet and the woven fabric need to form the packaging body 10 as a two-layer structure with at least a highly air-impermeable sheet.

Furthermore, in the embodiment, the hot melt layer 10B
Although the structure is described in which the entire back surface of the packaging body 10 is coated, it may be formed on the lower half of the packaging body or locally.

In addition, the breathable core material holding sheet 17 is attached to the through holes 17.
In place of the synthetic resin sheet used for forming a, a woven fabric may be used. In this case, the periphery 17b of the woven fabric is attached to the inner surface of the packaging body 10 with an adhesive.

On the other hand, the opening 13 is connected to the front part 10 of the packaging body 10.
It is good also as a structure which replaced with a and provided one in the back part 10b. By forming two openings 13 in the front part 10a or the back part 10b and interposing an on-off valve 16 in each of these openings 13,
One opening 13 may be used for attaching and detaching a nozzle 21 connected to a suction passage 20 of a household electric vacuum cleaner, and the other opening 13 may be used for attaching and detaching a spouting nozzle for an inert gas cylinder.

Further, although an example in which the breathable core material 19 is made of a non-woven fabric has been described, the same effect as in the above embodiment can be achieved even if the breathable core material 19 is made of a sponge having bubbles that communicate with each other instead of the non-woven fabric. play.

Furthermore, the gas filled in the packaging body 20 is not limited to the above-mentioned inert gas, but depending on the properties of the clothing, a gas having an anti-mold or insect repelling effect, a sterilizing gas, etc. may be used as a clothing-protecting gas. Of course, the present invention can also be carried out.

In the above embodiments, Japanese clothes are used as the article A, but in the present invention, the article A is not limited to only Japanese clothes, but can also include leather accessories, antique works of art, ancient documents, and hanging scrolls. It can be applied to long-term storage of items such as cameras, swords, etc. that require avoidance of damage over time.

(Effects of the Invention) As explained above, according to the present invention, since a packaging body having a hot melt layer on a heat-resistant and non-air permeable sheet is used, it is possible to use a large-scale package known for commercial use. Regardless of hot seal equipment,
The housing opening can be easily and reliably sealed using a household iron.

Further, the present invention provides a method for attaching a breathable core material holding sheet to the inner surface of the packaging body including the openings for air supply and exhaust, and providing space between the breathable core material holding sheet and the inner surface of the packaging body. A breathable core material is housed in the bag, and air inside the bag is exhausted from there, and gas to protect the article is supplied into the bag, so when the air inside the bag is exhausted, the above The opening is not blocked by the article inside the packaging bag, and communication between the opening and the interior of the packaging bag is ensured, so that the air inside the packaging bag can be smoothly and reliably exhausted.

Moreover, the process of replacing the air inside the package with a protective gas such as an inert gas can be easily and reliably done using a household vacuum cleaner and gas cylinder, so it can be done at home without leaving it to a professional. Since there is no spontaneous gas leakage, expensive items can be stored effectively for a long period of time.

[Brief explanation of drawings]

1 and 2 are partially cutaway front views showing the state of Japanese clothes before and after storage, respectively, as an example of the storage bag structure for carrying out the method of the present invention, and FIG. is - in Figure 1
Fig. 4 is an enlarged sectional view showing the general structure of the on-off valve, Fig. 5 is an enlarged sectional view showing an example of the welded and sealed state of the hot melt layer, and Fig. 6 is an enlarged sectional view showing the structure of the on-off valve. FIG. 3 is an explanatory diagram showing an example of an attachment. 10... Wrapping body, 10A... Sheet with high heat resistance and air impermeability, 10B... Hot melt layer, 1
0a...Front part, 10b...Back part, 11...Accommodation port, 13...Opening part, 16...Opening/closing valve, 17...
Breathable core material holding sheet, 17b... peripheral portion, 1
9... Breathable core material, 19A... Portion corresponding to the inner end of the opening, 30... Air supply/exhaust system passage, A... Article.

Claims (1)

[Claims] 1. After storing the article through the article accommodating opening of the heat-resistant and air-impermeable packaging body and welding and sealing the hot melt layer on the inner circumferential surface of the article accommodating opening, An exhaust means is connected to at least one opening provided with an on-off valve which is provided in at least one of the parts and which is kept closed at all times except when supplying air to and from the outside of the packaging body, and the on-off valve is opened. A breathable core holding sheet having a portion corresponding to the inner end of the opening is provided in a space formed by the one and a breathable core holding sheet attached to the inner surface of the one including the opening. The air present in the sealed space of the envelope body is evacuated through a supply/exhaust system passageway housing the core material, and the sealed space is maintained at a low pressure;
Further, the on-off valve is opened again to fill the sealed space with the product protection gas from the product protection gas cylinder through the supply/exhaust system passage, thereby replacing the sealed space with the product protection gas atmosphere. Preservation method.