JP2010095279A - Compression storage bag and method for using compression storage bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a compression storage bag that is harmless to the environment, suppresses expansion of a stored article, resulting from air entering as time passes, and stably compresses and stores an article for a long time. <P>SOLUTION: The compression storage bag 12 includes an opening 13 for inserting an article or taking it out and an air suction opening 14, is made of a synthetic resin as its main material, and compresses and stores an article by sucking air in the bag from the suction opening 14. The compression storage bag 12 includes a gas absorption device 5 in a space capable of communicating with the inside of the compression storage bag 12, the device 5 containing ZSM-5 type zeolite replaced with copper. The ZSM-5 type zeolite replaced with copper composes a gas-absorbing device so as to be stored without being deteriorated until the use of the bag. This exhibits the ability to absorb gases present in air, such as nitrogen, oxygen, moisture, and carbon dioxide. The device 5 absorbs and removes air entering it as time passes, thereby maintaining a decompressed state. This suppresses expansion of the stored article, resulting from entry of air, and stores the article in a low volume for a long time. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compressed storage bag, and in particular, a compressed storage bag that can be used as a futon or a clothing compressed storage bag, and a method of using the same. It is about.

  For compressed storage bags, put bulky items such as futons and clothes into a synthetic resin bag, seal the opening, suck and remove the air in the bag from the air suction port, and finally block the air suction port. Since the stored items can be stored in a compact manner by the procedure to be performed, it is widely used even in general households by using suction by a simple vacuum cleaner.

  However, there is a problem that the stored item gradually expands due to the air that enters from the opening and the suction port with time.

  Although not shown in particular, thermal welding of a synthetic resin using an iron is applied to seal the opening and the suction port. According to this method, intrusion of air from the welding site is suppressed, but the time and labor of the iron are reduced. There was a problem such as hanging. Further, when heat-welding the opening and the suction port, there is a problem that even if wrinkles or the like occur evenly, uniform welding cannot be performed, and air enters the inside of the bag in a short period of time, so that the stored items greatly expand.

  Therefore, a technique has been proposed in which the opening is closed with a U-shaped clip bar and a U-shaped portion of the clip bar with a press-fitted round bar-shaped clip bar, and a technique using a fastener with excellent sealing performance (for example, Patent Documents). 1).

  On the other hand, the technique which provides the fastener member of an opening part in 2 rows, and the fastener shape which suppresses the penetration | invasion of air are proposed (for example, refer patent document 2).

  Further, as means for suppressing air intrusion from the suction port, a temporary sealing portion and a main sealing portion are sequentially provided from the opening side, and a suction port is provided between the main sealing portion and the temporary sealing portion. Technology that suppresses the influence of air intrusion from the suction port by putting the stored items in the bag, sealing the temporary sealing portion, sucking the air in the bag from the suction port, and then sealing the main sealing portion Has been proposed (see, for example, Patent Document 3).

In addition to the opening and suction port, there is air that permeates through the bag material over time, but this is suppressed by using a laminated film provided with an aluminum vapor deposition layer as the bag material. A technique is disclosed (for example, see Patent Document 4).
Japanese Patent Laid-Open No. 7-246670 Japanese Utility Model Publication No. 6-10148 JP-A-4-242544 Japanese Utility Model Publication No. 4-41890

  However, in the above-mentioned conventional products, it is still impossible to block the intrusion air from the opening and the suction port and the permeation intrusion air from the bag material.

  With regard to Patent Document 1 and Patent Document 2, when clip bars and fasteners are used, even if the clip bars and fastener members are not in close contact with each other, the two parts may be provided or the shape may be complicated. However, the problem of air intrusion due to the pressure difference from the external pressure has not been completely solved, and the air intrusion from the opening portion over time cannot be avoided.

  The same applies to Patent Document 3.

  Regarding Patent Document 4, a certain effect can be obtained by suppressing the air that permeates and penetrates the bag material by providing the aluminum vapor-deposited layer. However, in the film provided with the aluminum vapor-deposited layer, the contents are confirmed from the appearance. There was a drawback that it was difficult.

  An object of the present invention is to provide a compressed storage bag and a method for using the compressed storage bag that are not harmful to the environment, suppress the expansion of stored items due to intruding air over time in the compressed storage bag, and enable stable compression storage over a long period of time. Is to provide.

  In order to achieve the above object, the compressed storage bag of the present invention is a bag having an opening serving as a storage port for stored items and an air suction port, and mainly made of synthetic resin. A compressed storage bag for compressing and storing stored items by sucking air therein, and a gas adsorption device including at least copper-exchanged ZSM-5 type zeolite in a space that can communicate with the inside of the compressed storage bag It is.

  In addition, the method of using the compressed storage bag of the present invention includes a storage step of storing a stored item in the compressed storage bag through the opening, an opening sealing step of sealing the opening, and an air suction port from the inside of the compressed storage bag. A suction step for sucking air, a suction port sealing step for closing the air suction port and storing under reduced pressure, and the gas adsorbing device in the previous invention adsorbs and immobilizes the air that has permeated through the compression storage bag over time, and again And an adsorption step for maintaining the storage under reduced pressure.

  In the above configuration, the ZSM-5 type zeolite exchanged with copper ions is converted into a gas adsorption device that can be stored without deterioration until the time of use, so that gases such as nitrogen, oxygen, moisture, and carbon dioxide exist in the air. Adsorbs and removes air that intrudes into the compressed storage bag over time and keeps it in a reduced pressure state, suppressing the expansion of stored items caused by the intruding air, like futons and clothes It is possible to store a bulky storage item in a low volume over a long period of time. And since the oxygen concentration in a compression storage bag can be reduced, it is also possible to suppress reproduction of micro organisms, such as a tick.

  Therefore, it is possible to provide a compressed storage bag and a method for using the compressed storage bag that are not harmful to the environment, suppress the expansion of the stored items due to the ingress air in the compressed storage bag, and enable stable compression storage for a long period of time.

  According to the present invention, a ZSM-5 type zeolite subjected to copper ion exchange is made into a gas adsorption device that can be stored without deterioration until it is used, so that it exists in air such as nitrogen, oxygen, moisture, carbon dioxide, etc. It is capable of adsorbing and removing air that intrudes into the compressed storage bag over time, and can maintain a reduced pressure state, suppressing the expansion of stored items caused by the intruding air, and futon and clothing Such bulky items can be stored in a low volume over a long period of time. And since the oxygen concentration in a compression storage bag can be reduced, it is also possible to suppress reproduction of micro organisms, such as a tick.

  Further, when the gas adsorption device is composed of at least a copper-exchanged ZSM-5 type zeolite, a moisture adsorbing material, and a container made of a gas hardly permeable material, the copper-exchanged ZSM-5 type zeolite has a moisture content. Therefore, it is possible to adsorb more gas without deteriorating, and therefore it is possible to suppress the expansion of the stored items over a long period of time.

  The invention of the compression storage bag according to claim 1 of the present invention is a bag having an opening serving as a storage / extraction port for stored items and an air suction port, and made of synthetic resin as a main material. A compressed storage bag for compressing and storing stored items by sucking air therein, and a gas adsorption device including at least copper-exchanged ZSM-5 type zeolite in a space that can communicate with the inside of the compressed storage bag It is characterized by this.

  In the above configuration, ZSM-5 type zeolite subjected to copper ion exchange is known to have a high activity activity against nitrogen, which is the most abundant gas in the air, and possibly a relative relationship between the pore diameter and the molecular diameter of nitrogen. This is considered to be due to the shape selectivity resulting from the above and the uniqueness of its three-dimensional structure.

  Furthermore, it has adsorption activity to gas species other than nitrogen existing in the air, that is, oxygen, moisture, carbon dioxide, hydrogen, etc., and the ZSM-5 type zeolite exchanged with copper ions is contained in the compressed storage bag. By including it as a gas adsorbent, it is possible to adsorb and remove the air that enters the compressed storage bag over time and keep it in a reduced pressure state, and suppress the expansion of the stored items caused by the intruding air. Such bulky items can be stored in a low volume over a long period of time. And since the oxygen concentration in a compression storage bag can also be reduced, it is also possible to suppress reproduction of micro organisms, such as a tick.

  The production of the ZSM-5 type zeolite subjected to the copper ion exchange is performed through a process of copper ion exchange, washing with water, drying and heat treatment of a commercially available ZSM-5 type zeolite.

Copper ion exchange can be performed by a known method, but a method of immersing in an aqueous solution of a soluble salt of copper, such as an aqueous solution of copper chloride or an aqueous solution of copper ammine, is generally used, particularly copper (II) propionate or acetic acid. Those prepared by a method using a Cu ²⁺ solution containing carboxylate such as copper (II) have high nitrogen adsorption activity.

  Wash with water thoroughly after ion exchange.

  Next, heat drying or drying under reduced pressure is performed to remove surface adhering water.

Thereafter, an appropriate heat treatment is performed under a low pressure. This is necessary to reduce Cu ²⁺ introduced by ion exchange to Cu ⁺ and develop gas adsorption ability. The pressure at the time of the heat treatment is 10 mPa or less, preferably 1 mPa or less, and the temperature is about 300 ° C. or more, preferably about 500 ° C. to 600 ° C. in order to promote the reduction to Cu ⁺ .

  Through the above process, the copper ion exchanged ZSM-5 type zeolite imparted with gas adsorption activity has gas adsorption activity of nitrogen, oxygen, moisture, carbon monoxide, carbon dioxide, hydrogen and the like.

  On the other hand, when the copper ion exchange ZSM-5 type zeolite having gas adsorption activity is handled in the atmosphere, it adsorbs atmospheric components and deactivates. Therefore, after activation by heat treatment, it is usually necessary to handle under high vacuum or in an inert gas.

  Therefore, in consideration of deactivation due to atmospheric contact and expression of sufficient adsorption activity after application to a compressed storage bag, it can be sealed in a gas adsorption device that does not directly contact air and optionally develops air permeability. is necessary.

  Here, the gas adsorption device in the present invention includes at least a copper ion exchanged ZSM-5 type zeolite, a container for storing the copper ion exchanged ZSM-5 type zeolite isolated from the surrounding space until use, and a gas. It is a generic term for mechanisms that enable gas adsorption by communicating inside and outside the container during adsorption.

  Further, the copper ion exchanged ZSM-5 type zeolite may be pelletized or molded.

In the copper ion exchange ZSM-5 type zeolite, copper is first ion exchanged as Cu ²⁺ . Next, by performing an appropriate heat treatment under low pressure, Cu ²⁺ is reduced to Cu ⁺ and exhibits gas adsorption activity.

Therefore, regarding the silica to alumina ratio of ZSM-5 type zeolite, when the silica to alumina ratio is low, that is, when a large amount of −1 valent aluminum is present, Cu ²⁺ is more stable, and Cu ⁺ Nitrogen adsorption activity is also reduced because of the reduction of sites that are reduced.

On the other hand, when the silica to alumina ratio is large, i.e., when there is little −1-valent aluminum, less copper is introduced by ion exchange, and hence fewer Cu ⁺ sites, which also reduces the nitrogen adsorption activity. Therefore, in order to express the nitrogen adsorption activity, it is desirable that the silica to alumina ratio is in an appropriate range, and in the present invention, it is determined that a range of 8 to 25 is appropriate.

  Further, the copper ion exchange ZSM-5 type zeolite has no harmful information and is considered to have a low environmental load.

  Also, the opening is not particularly specified, but may be any opening that can take in and out large items such as futons. The sealing method after storing the stored items is not particularly specified, such as welding with an iron, sandwiching with a clip bar, sealing with a fastener member using a press-fitting method between a male member and a female member, but the fastener member. Is simple. Whichever method is used, air enters over time, but this is not a problem because it can be adsorbed and removed by a gas adsorption device.

  The suction port is not particularly specified, but a suction port having a size suitable for suction using a vacuum cleaner in general households is desirable. After suction, a fastener member that can be sealed like the opening is required. . Moreover, in order to manufacture more simply and at low cost, a configuration in which a part of the opening becomes a suction port may be used.

  The suction method is not particularly specified. Vacuum cleaners and suction using a pump can be used.

  The synthetic resin is not particularly specified, but general-purpose synthetic resins such as nylon, polyethylene, polypropylene, and polyethylene terephthalate can be used.

  The space that can communicate with the inside of the compressed storage bag may be the inside of the compressed storage bag itself, or there may be a pocket for storing the gas adsorption device inside the compressed storage bag. In addition, even if a small bag communicating with the compressed storage bag is connected, it is only necessary that the gas adsorption device can communicate with the air inside the compressed storage bag.

  Further, the invention of the compression storage bag according to claim 2 is the invention according to claim 1, wherein the gas adsorbing device comprises at least copper-exchanged ZSM-5 type zeolite, a moisture adsorbing material, and a gas hardly permeable material. The container is partitioned into at least two spaces by a partition capable of controlling air permeability, and the copper-exchanged ZSM-5 type zeolite and the water adsorbent are different from each other in the container. It is housed in the space.

  In the above configuration, when air that has entered the compressed storage bag is adsorbed, the air contains moisture together with nitrogen, oxygen, and the like. Copper-exchanged ZSM-5 type zeolite is very active against moisture, and adsorbs active water that adsorbs water preferentially when water is contained in the adsorbed gas. Can no longer adsorb nitrogen and oxygen.

  It is composed of only ZSM-5 type zeolite exchanged with copper, and there is no problem that ZSM-5 type zeolite exchanged with copper exchanges all gaseous species such as nitrogen, oxygen and moisture in the air. Since this is cheaper than the ZSM-5 type zeolite exchanged with copper, this configuration can provide a lower cost compressed storage bag.

  Therefore, by making both the ZSM-5 type zeolite exchanged with copper and the moisture adsorbent as a device, moisture is adsorbed on the moisture adsorbent, and the active sites of the ZSM-5 type zeolite exchanged with copper are more effectively nitrogen and oxygen. It is intended to provide a gas adsorption device that can be used for adsorption. That is, the positional relationship between the copper-exchanged ZSM-5 type zeolite and the moisture adsorbent in the container is optimized as follows.

  Copper-exchanged ZSM-5 type zeolite and moisture adsorbent are accommodated in independent spaces. In addition, the independent spaces ensure appropriate air permeability by the partition material. Furthermore, when adsorbing the gas, the gas first passes through the space containing the moisture adsorbing material, and after the moisture contained in the moisture adsorbing material is adsorbed, the gas enters the space containing the copper-exchanged ZSM-5 type zeolite. Configure to reach.

  At this time, if the air permeability between the spaces is too large, the moisture adsorbing material cannot absorb moisture, and a gas containing a large amount of moisture reaches the ZSM-5 type zeolite in which copper is exchanged. On the other hand, if the air permeability between the spaces is too small, the amount of gas that reaches the copper-exchanged ZSM-5 type zeolite is small, and the adsorption performance of the copper-exchanged ZSM-5 type zeolite cannot be sufficiently exhibited. Therefore, it is important to appropriately control the air permeability of the partition member that can control the air permeability.

  Here, the moisture adsorbing material is capable of adsorbing moisture contained in the gas and includes activated carbon, silica gel, calcium oxide, etc., but is not particularly specified.

Further, the gas permeable material is a material having a gas permeability of 10 ⁴ [cm ³ / m ² · day · atm] or less, more preferably 10 ³ [cm ³ / m ² · day · atm] or less. A four-sided seal bag made of an aluminum laminate film can be used.

  With the above configuration, the ZSM-5 zeolite exchanged with copper does not deteriorate with moisture and can adsorb more gas. It is possible to maintain the state, and it is possible to store a bulky storage item such as a futon or clothing with a low volume over a long period of time by suppressing the expansion of the storage item due to the intruding air.

  The invention of the compression storage bag according to claim 3 is the invention according to claim 2, wherein the partition is a continuous porous body.

  If the air permeability of the partition containing the ZSM-5 type zeolite containing the copper ion exchanged space and the space containing the water adsorbing material is too large, the water adsorbing material cannot fully absorb the water, and the copper ion exchanged ZSM-5 type Zeolite adsorbs excess water and deteriorates. On the other hand, when the air permeability of the partition containing the space containing the copper ion exchanged ZSM-5 type zeolite and the space containing the water adsorbent is too small, the amount of gas reaching the copper ion exchanged ZSM-5 type zeolite is small, Adsorption characteristics of ZSM-5 type zeolite subjected to copper ion exchange cannot be sufficiently exhibited. Accordingly, it is important to appropriately control the air permeability of the partition material, and this air permeability depends on the gas permeability, the cross-sectional area, and the length of the partition material.

  In order to appropriately control the gas permeability, a continuous porous structure is suitable, and can be appropriately selected depending on the amount of residual impurity gas and the speed of the impurity gas entering over time.

  Here, the continuous porous body is composed of a solid portion and a void portion, and the voids communicate with each other. Although it may be an aggregate of particles made of an inorganic material such as ceramics or an organic material such as a continuous urethane foam, it is more desirable to generate less gas under reduced pressure.

  With the above configuration, the ZSM-5 zeolite exchanged with copper does not deteriorate with moisture and can adsorb more gas. It is possible to maintain the state, and it is possible to store a bulky storage item such as a futon or clothing with a low volume over a long period of time by suppressing the expansion of the storage item due to the intruding air.

  Further, the invention of the compression storage bag according to claim 4 is the invention according to claim 2 or claim 3, wherein the space in which the copper-exchanged ZSM-5 type zeolite and the moisture adsorbing material are stored, the compression storage The bag internal space is provided with a mechanism that allows ventilation by external stress.

  In order to suppress the deterioration of the ZSM-5 type zeolite exchanged with copper ion having high gas adsorption activity, the gas adsorption device container needs to be made of a gas poorly permeable material. It must be possible to vent the interior space.

  Below, an example is shown about the mechanism which can ventilate by the external stress in this invention.

  As a container made of a gas permeable material for gas adsorption devices, a four-side sealed bag made of aluminum laminate film is used, and a ZSM-5 type zeolite with copper exchange therein and a moisture adsorbent can control the air permeability. It is accommodated across the. Install this gas device and the protrusion of the member with protrusions (protrusion member) toward the aluminum laminate film, and place it inside the compression storage bag without touching the aluminum laminate film. . Thereafter, when necessary, a stress is applied from the outside so that the protrusion penetrates the aluminum laminated bag, thereby opening a through hole in the aluminum laminated bag and communicating the inside of the aluminum laminated bag and the inside of the compressed storage bag. .

  Since the compression storage bag is made of synthetic resin, it is easily deformed by an external force. For this reason, it is possible to open a gas adsorption device as needed by employ | adopting the structure which can ventilate the container of a gas adsorption device by external stress.

  Therefore, a member that generates a through-hole by piercing such as a laminate film is used as a container for the gas adsorption device, and a protruding member that applies a certain stress to the container is installed, and if necessary, from the outside of the compression storage bag By applying stress to the protruding member, a through-hole can be formed in the gas adsorption device, and the air component that has entered the internal space of the compressed storage bag can be adsorbed and removed.

  At this time, it is desirable that the protruding member is installed so as to form a through hole on the moisture adsorbing material side of the gas adsorbing device. With this configuration, air enters the container through the through hole. When air enters the container, it stays in the vicinity of the moisture adsorbing material for a predetermined time. Therefore, moisture contained in the air is adsorbed by the moisture adsorbing material, and only dry air not containing moisture passes through the partition and is exchanged with copper ions. ZSM-5 type zeolite that has reached the zeolite and has undergone copper ion exchange can efficiently adsorb nitrogen, oxygen, and the like.

  In addition, the protrusion member may be attached with an adhesive or a double-sided tape so as to be in contact with the gas adsorption device, or may be fastened with a clip or the like, but is not particularly specified.

  Regarding the timing at which the space in which the copper-exchanged ZSM-5 type zeolite and the moisture adsorbent are accommodated and the internal space of the compression storage bag can be ventilated by external stress, even if air intrudes over time, It may be immediately after the suction port is closed so that it can be removed, or it may be either after the stored item begins to expand after the air has entered.

  With the above configuration, it is possible to adsorb and remove the air that enters the compressed storage bag over time and keep it in a reduced pressure state, which suppresses the expansion of the stored items caused by the intruding air and is bulky like a futon or clothing. It becomes possible to store the stored items in a low volume over a long period of time. And since the oxygen concentration in a compression storage bag can be reduced, it is also possible to suppress reproduction of micro organisms, such as a tick.

  Further, the invention of the method for using the compressed storage bag according to claim 5 includes: a storage step for storing the stored article in the compression storage bag through the opening; an opening sealing step for sealing the opening; and an air suction port. 5. The suction step for sucking air inside the compressed storage bag, the suction port sealing step for closing the air suction port and storing under reduced pressure, and the air that has permeated and entered the compressed storage bag over time. The gas adsorption device according to one aspect includes an adsorption step for adsorbing and immobilizing and maintaining the reduced pressure storage again.

  As a mechanism for starting the adsorption step, the mechanism of the invention described in claim 4 may be used, or other means may be used. Regarding the timing of starting the adsorption step, it may be immediately after the suction port is closed so that it can be removed immediately even if air intrudes over time, or after the air has infiltrated, the stored item begins to expand. But you can.

  According to the method of using the compressed storage bag of the present invention, it is possible to adsorb and remove the air that enters the compressed storage bag over time, and to maintain the pressure-reduced state. It is possible to store bulky items such as clothes and clothes in a low volume over a long period of time. And since the oxygen concentration in a compression storage bag can be reduced, it is also possible to suppress reproduction of micro organisms, such as a tick.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a flowchart showing a method for producing a copper ion exchanged ZSM-5 type zeolite used in the compressed storage bag according to Embodiment 1 of the present invention.

  In the present embodiment, the production of the adsorbent made of ZSM-5 type zeolite subjected to copper ion exchange is performed by an ion exchange step (STEP 1) using an ion exchange solution containing copper ions, and a ZSM-5 type zeolite subjected to copper ion exchange. It comprises a cleaning step (STEP 2), a drying step (STEP 3), and a heat treatment step (STEP 4) for reducing copper ions.

  In the ion exchange step (STEP 1), aqueous solutions of existing compounds such as copper acetate, copper propionate, and copper chloride can be used as a solution containing copper ions. For this purpose, copper acetate is desirable.

The number of ion exchanges, the concentration of the copper ion solution, the ion exchange time, the temperature and the like are not particularly limited, but the ion exchange rate exhibits excellent adsorption performance in the range of 100% to 180%. More preferably, it is in the range of 110% to 170%. The ion exchange rate shown here is a calculated value on the assumption that Cu ²⁺ is exchanged per two Na ⁺ , and when copper is exchanged as Cu ⁺ , the calculation exceeds 100%. Calculated.

  In the washing step (STEP 2), it is desirable to wash with distilled water. In the drying step (STEP 3), it is desirable to dry under conditions of less than 100 ° C., and vacuum drying at room temperature may be used.

In the heat treatment step (STEP 4), it is desirable to perform heat treatment at a temperature of 300 ° C. or higher and 800 ° C. or lower under reduced pressure, preferably under a condition of less than 10 ⁻² Pa. The heat treatment time depends on the amount of ZSM-5 type zeolite exchanged with copper ions, but sufficient time is required to reduce the copper ions from divalent to monovalent. Moreover, if it is 300 degrees C or less, there exists a possibility that the reduction | restoration to monovalence may become inadequate, and if it is 800 degrees C or more, there exists a possibility that the structure of a zeolite may be destroyed. More preferably, it is about 500 ° C to 600 ° C.

  The copper ion exchanged ZSM-5 type zeolite produced in this way is present in the air such as nitrogen, oxygen, moisture, carbon dioxide, etc., by making it a gas adsorption device that can be stored without deterioration until use. It is capable of adsorbing and removing air that intrudes into the compressed storage bag over time, and can maintain a reduced pressure state, suppressing the expansion of stored items caused by the intruding air, and futon and clothing Such bulky items can be stored in a low volume over a long period of time.

(Embodiment 2)
FIG. 2 is a cross-sectional view showing a state before use of the gas adsorption device used in the compressed storage bag according to Embodiment 2 of the present invention.

  As shown in FIG. 2, in the gas adsorption device 5, a moisture adsorbent 7 and ZSM-5 type zeolite 8 exchanged with copper ions are enclosed in a container 6 made of an aluminum lamete film.

  Further, the moisture adsorbent 7 and the ZSM-5 type zeolite 8 exchanged with copper ions are partitioned by a partition 9 made of continuous urethane foam. The container 6 has a protruding member 10 on both sides as a mechanism that allows the space where the ZSM-5 type zeolite 8 exchanged with copper and the moisture adsorbing material 7 are accommodated and the internal space of the compression storage bag to be ventilated by external stress. It is attached by tape. Here, the tip of the protruding member 10 is sharp. Since the ZSM-5 type zeolite 8 subjected to the copper ion exchange is enclosed in the container 6 made of an aluminum lameet film, there is almost no deterioration during storage.

  FIG. 3 is a cross-sectional view showing a state in use of the gas adsorption device 5 used in the compressed storage bag according to Embodiment 2 of the present invention. FIG. 4 shows a side view and a top view of the protruding member 10 used in the gas adsorbing device 5 used in the compressed storage bag according to Embodiment 2 of the present invention.

  A projection member 10 is provided on the moisture adsorbent 7 side of the gas adsorption device 5, and as a result of applying stress to the projection member 10, a through hole 11 is formed in the container 6, and the inside of the container 6 communicates with the external space. Is.

  With this configuration, air enters the container 6 through the through hole 11. When air enters the container 6, it stays in the vicinity of the moisture adsorbing material 7 for a predetermined time. Therefore, the moisture contained in the air is adsorbed by the moisture adsorbing material 7, and only dry air containing no moisture passes through the partition 9 and exchanges copper ions. The ZSM-5 type zeolite 8 that has reached the ZSM-5 type zeolite 8 and has undergone copper ion exchange can efficiently adsorb nitrogen, oxygen, and the like.

(Embodiment 3)
FIG. 5 is an external perspective view of the compressed storage bag according to Embodiment 3 of the present invention.

  As shown in FIG. 5, the compression storage bag 12 of the present embodiment is a compression storage bag 12 made of synthetic resin as a main material, and has an opening 13 serving as a storage / extraction port and a suction port 14. I have. In the compressed storage bag 12 that compresses and stores the stored items by sucking air inside the compressed storage bag 12 from the suction port 14, the gas adsorption device 5 according to the second embodiment is placed in a space that can communicate with the inside of the compressed storage bag 12. (Including the protruding member 10).

  After the gas adsorbing device 5 and the protruding member 10 are placed in the compressed storage bag 12 together with the stored items with the protruding object of the protruding member 10 facing the container 6 side, the air is exhausted from the suction port 14 by a vacuum cleaner or the like. , Block. Thereafter, when necessary, a stress is applied from the outside to the extent that the protrusion penetrates the container 6 to make a hole in the container 6 so that the inside of the container 6 communicates with the inside of the compressed storage bag 12.

  In that case, the protrusion member 10 is installed so that a through-hole may be formed in the moisture adsorption material 7 side of the gas adsorption device 5. With this configuration, air enters the container 6 through the through hole 11. When air enters the container 6, it stays in the vicinity of the moisture adsorbing material 7 for a predetermined time. Therefore, the moisture contained in the air is adsorbed by the moisture adsorbing material 7, and only dry air containing no moisture passes through the partition 9 and exchanges copper ions. The ZSM-5 type zeolite 8 that has reached the ZSM-5 type zeolite 8 and has undergone copper ion exchange can efficiently adsorb nitrogen, oxygen, and the like.

(Embodiment 4)
FIG. 6 is a flowchart showing a method of using the compressed storage bag according to Embodiment 4 of the present invention.

  The method of using the compressed storage bag 12 in the present embodiment includes a storage step (STEP 15) for storing the stored items in the compression storage bag 12 through the opening 13, and an opening blocking step (STEP 16) for sealing the opening 13. A suction step (STEP 17) for sucking air inside the compressed storage bag 12 from the air suction port 14; a suction port sealing step (STEP 18) for closing the air suction port 14 and storing under reduced pressure; The gas adsorption device 5 in the second embodiment adsorbs and fixes the intruded air, and the adsorption step 19 for continuing the decompression storage again.

  According to the method of using the compressed storage bag of the present embodiment, the ZSM-5 type zeolite 8 exchanged with copper ions, which is made into a gas adsorption device 5 that can be stored without deterioration until use, is converted into nitrogen, oxygen, moisture, carbon dioxide. It exhibits the ability to adsorb gas that exists in the air such as air, and adsorbs and removes air that enters the compressed storage bag 12 over time, and can maintain a reduced pressure state. It is possible to store a bulky storage item such as a futon or clothing with a low volume over a long period of time by suppressing expansion. And since the oxygen concentration in the compression storage bag 12 can be reduced, it is also possible to suppress reproduction of micro organisms such as mites.

  Further, the gas adsorption device 5 includes at least a copper-exchanged ZSM-5 type zeolite 8, a moisture adsorbing material 7, a copper-exchanged ZSM-5 type zeolite 8 and a moisture adsorbing material 7. The through-hole 11 is formed in the container 6 by the protruding member 10, and the air that has entered the container 6 is first adsorbed by the moisture adsorbing material 7, and only dry air that does not contain moisture is partitioned. 9, the copper exchanged ZSM-5 type zeolite 8 does not deteriorate due to moisture and can adsorb more gas. It is possible to suppress the expansion over a long period of time.

  As described above, in the present embodiment, it is possible to use the compressed storage bag 12 stably over a long period without being inflated.

Example 1
The compression storage bag 12 uses a laminate material of nylon and polyethylene, which are synthetic resins, and the opening 13 serving as an entrance and exit for stored items and the air suction port 14 are fasteners that are sealed by combining convex and concave shapes. Using.

  The gas adsorbing device 5 uses 100 g of ZSM-5 type zeolite exchanged with copper, filled in a four-sided sealed bag (a container 6 made of a gas-impermeable material) in an inert gas, and sealed under reduced pressure. It was.

  The gas adsorbing device 5 and the protruding member 10 with the protrusions facing the aluminum laminate film are installed inside the compressed storage bag 12, and after storing the stored items and compressed under reduced pressure, the protrusions penetrate the aluminum laminated bag. By applying stress from the outside, the through-hole 11 was opened in the aluminum laminated bag, and the inside of the aluminum laminated bag and the inside of the compressed storage bag 12 were communicated.

  Even after 3 months, the compressed storage bag 12 did not expand, the amount of change in thickness at the maximum thickness portion was 0%, and the compressed state was maintained.

  This is because the ZSM-5 type zeolite 8 subjected to copper ion exchange is converted into a gas adsorption device 5 that can be stored without deterioration until the time of use, so that it exists in the air such as nitrogen, oxygen, moisture, carbon dioxide. This is because the adsorption capacity to the gas is exhibited, and the air that enters the compressed storage bag 12 over time can be adsorbed and removed, and kept in a reduced pressure state.

(Example 2)
The compression storage bag 12 uses a laminate material of nylon and polyethylene, which are synthetic resins, and the opening 13 serving as an entrance and exit for stored items and the air suction port 14 are fasteners that are sealed by combining convex and concave shapes. Using.

  The gas adsorbing device 5 uses a four-side sealed bag of aluminum laminate film as a container 6 made of a gas permeable material, and in an inert gas, 50 g of ZSM-5 type zeolite exchanged with copper and calcium oxide as a moisture adsorbing material 7 50 g was filled so as to be partitioned by a glass wool aggregate partition 9, which is a continuous rice field that can control air permeability, and sealed under reduced pressure.

  The gas adsorbing device 5 and the protruding member 10 with the protrusions facing the aluminum laminate film are installed inside the compressed storage bag 12, and after storing the stored items and compressed under reduced pressure, the protrusions penetrate the aluminum laminated bag. By applying stress from the outside, the through-hole 11 was opened in the aluminum laminated bag, and the inside of the aluminum laminated bag and the inside of the compressed storage bag 12 were communicated.

  Even after 3 months, the compressed storage bag 12 did not expand, the amount of change in thickness at the maximum thickness portion was 0%, and the compressed state was maintained.

  This is because the ZSM-5 type zeolite 8 subjected to copper ion exchange is converted into a gas adsorption device 5 that can be stored without deterioration until the time of use, so that it exists in the air such as nitrogen, oxygen, moisture, carbon dioxide. This is because the adsorption capacity to the gas is exhibited, and the air that enters the compressed storage bag 12 over time can be adsorbed and removed, and kept in a reduced pressure state.

  Moreover, compared with Example 1, although the ZSM-5 type | mold zeolite 8 which carried out copper exchange was reduced by half, the equivalent effect has been confirmed. Since calcium oxide is less expensive than the copper-exchanged ZSM-5 type zeolite 8, it could be produced at a low cost. This is because the water-absorbing material 7 and the appropriate partition 9 are used, so that the ZSM-5 type zeolite 8 exchanged with copper is not deteriorated by moisture, and more gas can be adsorbed. It is because it became possible to suppress expansion | swelling of a long term.

  Next, the comparative example with respect to the compression storage bag of this invention is shown.

(Comparative Example 1)
The stored items were stored in a similar storage bag provided in a two-row state with the opening fastener members disclosed in existing literature, and then compressed under reduced pressure. After 3 months, the compression state was deteriorated visually, and the thickness variation at the maximum thickness portion was 150%.

  The present invention adsorbs and removes air that enters the compressed storage bag over time and can maintain a reduced pressure state, and suppresses the expansion of stored items caused by the intruded air and stores bulky items such as futons and clothes. Objects can be stored in a low volume over a long period of time. And since the oxygen concentration in a compression storage bag can be reduced, it is also possible to suppress reproduction of micro organisms, such as a tick. Therefore, it is suitable for the purpose of storing bulky items such as futons and clothes in a low volume over a long period of time. In addition, the gas adsorption device used in the present invention can be used for applications such as compression storage bags, for the purpose of adsorbing and removing air, and for pest control with low oxygen.

The flowchart which shows the manufacturing method of the ZSM-5 type zeolite which carried out the copper ion exchange used for the compression storage bag in Embodiment 1 of this invention. Sectional drawing which shows the state before use of the gas adsorption device used for the compression storage bag in Embodiment 2 of this invention. Sectional drawing which shows the state at the time of use of the gas adsorption device used for the compression storage bag in the embodiment (A) Side view of the projection member used for the gas adsorption device used for the compression storage bag in the same embodiment (b) Top view of the projection member External appearance perspective view of the compression storage bag in Embodiment 3 of this invention The flowchart which shows the usage method of the compression storage bag in Embodiment 4 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 5 Gas adsorption device 6 Container 7 Water | moisture-content adsorption material 8 ZSM-5 type zeolite which carried out copper ion exchange 9 Partition 10 Protrusion member 11 Through-hole 12 Compression storage bag 13 Opening part 14 Suction port

Claims (5)

Compressed storage that compresses and stores stored items by sucking the air inside the bag from the suction port, with a bag made of synthetic resin as the main material, with an opening serving as a storage port for the stored items and an air suction port. A compression storage bag comprising a gas adsorption device including at least a copper-exchanged ZSM-5 type zeolite in a space that can communicate with the inside of the compression storage bag. The gas adsorbing device comprises at least a copper-exchanged ZSM-5 type zeolite, a moisture adsorbing material, and a container made of a gas-impermeable material, and the container has at least two spaces by a partition capable of controlling air permeability. The compressed storage bag according to claim 1, wherein the ZSM-5 type zeolite exchanged with copper and the moisture adsorbing material are respectively stored in different spaces of the container. The compressed storage bag according to claim 2, wherein the partition is a continuous porous body. The compression according to claim 2 or 3, further comprising a mechanism in which the space in which the copper exchanged ZSM-5 type zeolite and the moisture adsorbent are accommodated and the compression storage bag internal space can be ventilated by external stress. Storage bag. A storage step for storing the stored items in the compressed storage bag through the opening; an opening blocking step for sealing the opening; a suction step for sucking air inside the compressed storage bag from the air suction port; and an air suction port. The suction port sealing step for closing and storing under reduced pressure, and the gas adsorbing device according to any one of claims 1 to 4 adsorbs and immobilizes air that has permeated through the compression storage bag over time, and continues the storage under reduced pressure again. A method for using a compressed storage bag including an adsorption step.

Images