Fire extinguisher

Abstract

To provide a fire extinguishing body that is excellent in handling and the stability of the properties of the fire extinguishing agent, and that can prevent the occurrence and spread of fire. [Solution] The fire extinguishing body 10 comprises a packaging bag 11 formed from a base material including a resin layer, and a fire extinguishing agent sealed inside the packaging bag 11. The packaging bag 11 has a sealing portion 11a at its periphery, and the base materials are joined together at the sealing portion 11a. The fire extinguishing body 10 is pre-installed on or near an object that is likely to ignite. If the object ignites, the fire extinguishing body 10 will perform initial fire suppression.

Description

Technical Field

[0001] The present invention relates to a fire extinguishing body.

Background Art

[0002] In recent years, with the progress of technology, while our lives have become increasingly comfortable, a large amount of energy is required to create this comfort. High safety is required for handling energy in each scenario of densely filling, storing, moving, and using a large amount of energy.

[0003] Taking automobiles as an example, when extracting fossil fuels, when purifying gasoline from fossil fuels, when transporting gasoline, when burning gasoline in an engine, etc., there are potential risks of ignition and fire. Also, taking electronics as an example, when moving electrical energy through wires, when adjusting electrical energy at substations or transformers, when using electrical energy in electrical equipment in homes or factories, or when temporarily storing it in a battery, etc., there are similarly potential risks of ignition and fire.

[0004] Regarding the problems of ignition and fire, in Patent Document 1, it has been proposed to use fire extinguishing liquid and fire extinguishers. In Patent Document 2, an automatic fire extinguishing device dropped from a helicopter has been proposed. In Patent Document 3, an aerosol fire extinguishing device has been proposed.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

[0006] Prior art has proposed methods for dealing with fires after a certain amount of time has passed. On the other hand, from the perspective of minimizing damage from fire, it is desirable that some kind of firefighting operation (initial fire suppression) be carried out as soon as possible after ignition.

[0007] Therefore, one possible method is to pre-place the components of the fire extinguishing agent disclosed in the prior art near the object that is likely to ignite. In this way, it is expected that the fire will be extinguished by the components of the fire extinguishing agent before a person can detect that the object has ignited. However, it is necessary to address the problem that fire extinguishing agents placed in open spaces deteriorate over time. In addition, it is obviously not practical to simply scatter the fire extinguishing agent near the object, so it is necessary to place it near the object in a form that is reasonably easy to handle.

[0008] This invention has been made in view of the above circumstances, and aims to provide a fire extinguishing body that is excellent in handling and stability of the properties of the fire extinguishing agent, and that can prevent the occurrence and spread of fire. [Means for solving the problem]

[0009] One aspect of the present invention provides a fire extinguishing body comprising a packaging bag formed from a base material including a resin layer, and a fire extinguishing agent sealed inside the packaging bag, wherein the packaging bag has a sealing portion at its periphery, and the base materials are joined together at the sealing portion. With such a fire extinguishing body, the packaging bag ensures its ease of handling. Furthermore, the base material including the resin layer suppresses contact between the fire extinguishing agent and the outside air, thereby suppressing the deterioration of the fire extinguishing agent. Thus, the above fire extinguishing body is excellent in terms of ease of handling and the stability of the properties of the fire extinguishing agent. In addition, by placing the fire extinguishing body in advance near the target object, initial fire extinguishing becomes possible, and the spread of fire to the surrounding area can be suppressed.

[0010] In one embodiment, the resin layer may contain a polyolefin resin.

[0011] In one aspect, the thickness of the base material may be 4.5 to 1000 μm.

[0012] In one aspect, the base material may further include a water vapor barrier layer.

[0013] In one aspect, the water vapor permeability of the water vapor barrier layer (under the conditions of 40 °C / 90% RH in accordance with JIS K 7129) may be 10 g / m 2 / day or less.

Advantages of the Invention

[0014] According to the present invention, it is possible to provide a fire extinguishing body that is excellent in handling properties and the property stability of the fire extinguishing agent, and can prevent the occurrence and spread of fires. The advantages of the present invention are briefly summarized below. · Damage caused by the spread of fire can be minimized. That is, initial fire extinguishing is possible. · After a person confirms the occurrence of a fire, there is no need to carry a fire extinguisher to the vicinity of the fire target and conduct fire extinguishing activities. · Since it can be installed more simply compared to facilities such as automatic fire extinguishing devices, there are fewer restrictions on the installation location and it can be applied according to the necessary locations. · Since it is excellent in the property stability of the fire extinguishing agent, the replacement frequency of the fire extinguishing body can be reduced.

Brief Description of the Drawings

[0015] [Figure 1] Figure 1 is a schematic external view of a fire extinguishing body according to an embodiment. [Figure 2] Figure 2 is a schematic cross-sectional view of a fire extinguishing body according to an embodiment, and is a cross-sectional view taken along line II-II in Figure 1. [Figure 3] Figure 3 is a schematic cross-sectional view of a fire extinguishing body according to another embodiment. [Figure 4] Figure 4 is a schematic external view of a fire extinguishing body according to another embodiment. [Figure 5] Figure 5 is a schematic diagram showing a method for manufacturing a fire extinguishing body according to an embodiment. [Figure 6] Figure 6 is a schematic diagram showing a method for manufacturing a fire extinguishing body according to another embodiment. [Figure 7] FIG. 7 is a schematic cross-sectional view of a fire extinguishing body according to another embodiment. **MODE FOR CARRYING OUT THE INVENTION**

[0016] Hereinafter, embodiments of the present invention will be described in detail. However, the present invention is not limited to the following embodiments.

[0017] <Fire extinguishing body> FIG. 1 is a schematic external view of a fire extinguishing body according to one embodiment. FIG. 2 is a schematic cross-sectional view of a fire extinguishing body according to one embodiment, which is a cross-sectional view taken along line II-II in FIG. 1. The fire extinguishing body 10 includes a packaging bag 11 formed of a base material including a resin layer, and a fire extinguishing agent 12 enclosed in the packaging bag. The packaging bag 11 has a sealing portion 11a at its periphery, and the base materials are joined to each other at the sealing portion 11a.

[0018] FIG. 3 is a schematic cross-sectional view of a fire extinguishing body according to another embodiment. The fire extinguishing body 20 includes a packaging bag 21 formed of a base material including a resin layer, and a fire extinguishing agent 22 enclosed in the packaging bag. The packaging bag 21 has a sealing portion 21a at its periphery, and the base materials are joined to each other by an adhesive 23 at the sealing portion 21a.

[0019] FIG. 4 is a schematic external view of a fire extinguishing body according to another embodiment. The fire extinguishing body 30 includes a packaging bag 31 formed of a base material including a resin layer, and a fire extinguishing agent (not shown) enclosed in the packaging bag. The packaging bag 31 has a sealing portion 31a and a folded-back portion 31b at its periphery, and the base materials are joined to each other at the sealing portion 31a. The folded-back portion 31b is formed by folding a single base material instead of using a pair of base materials. The sealing portion 31a may be in a mode conforming to the sealing portion 11a or in a mode conforming to the sealing portion 21a.

[0020] When the fire extinguishing body is viewed from the upper part in the vertical direction, the width of the sealing portion 11a is not particularly limited, but from the viewpoint of the property stability of the fire extinguishing agent, it can be, for example, 2 to 40 mm.

[0021] The thickness of the central part of the fire extinguishing body is not necessarily limited, as it varies depending on its layer structure and the amount of extinguishing agent enclosed. However, from the viewpoint of maintaining fire extinguishing performance while making it thinner so as not being limited by installation space, it can be, for example, 0.2 to 20 mm, or even 2 to 20 mm. Furthermore, the area of ​​the main surface of the fire extinguishing body (the surface when the fire extinguishing body is viewed from the top in the vertical direction) can be, for example, 9 to 620 cm² from the viewpoint of fire extinguishing performance and handling. 2 It can be done this way.

[0022] Fire extinguishing devices are installed in advance on or near objects that are at risk of ignition. If a fire breaks out at the object, the fire extinguishing devices will be used to perform initial fire suppression.

[0023] (base material) The substrate includes a resin layer. Examples of resin layer materials include polyolefins (PE, PP, COP, etc.), polyesters (PET, etc.), fluororesins (PTFE, ETFE, EFEP, PFA, FEP, PCTFE, etc.), vinyl resins (PVC, PVA, etc.), acrylic resins, epoxy resins, polyamides, polyimides, etc. The substrate may consist of one resin layer made of these materials, or it may consist of multiple resin layers. The multiple resin layers may each be made of different materials. When the substrate consists of multiple layers, the layers may be bonded together with an adhesive (adhesive layer). Examples of adhesives include acrylic adhesives, epoxy adhesives, silicone adhesives, polyolefin adhesives, urethane adhesives, or polyvinyl ether adhesives, or synthetic adhesives thereof.

[0024] The resin layer may have heat-melting properties (thermal fusion properties). A resin layer having heat-melting properties can be called a heat-melting layer. The heat-melting layer can be provided on the innermost layer side of the base material (the side facing the fire extinguishing agent). When the base material has a heat-melting layer, the sealing portion around the edge of the packaging bag can be called a heat-seal portion. Examples of resins having heat-melting properties include polyolefin resins. That is, the resin layer may contain a polyolefin resin. Examples of polyolefin resins include polyolefin resins such as low-density polyethylene resin (LDPE), linear low-density polyethylene resin (LLDPE), medium-density polyethylene resin (MDPE), and unoriented polypropylene resin (CPP); polyethylene resins such as ethylene-vinyl acetate copolymer and ethylene-α-olefin copolymer; and polypropylene resins such as propylene-ethylene random copolymer, propylene-ethylene block copolymer, and propylene-α-olefin copolymer. Of these, polyolefin resins may include low-density polyethylene resin (LDPE), linear low-density polyethylene resin (LLDPE), or unstretched polypropylene resin (CPP) from the viewpoint of having excellent heat-sealing properties and low water vapor permeability, which helps to suppress the deterioration of the fire extinguishing agent. These resins are transparent, making it easy to inspect the appearance of the fire extinguishing agent. Therefore, it becomes easier to check when the fire extinguishing body needs to be replaced.

[0025] The base material may include a water vapor barrier layer. The water vapor barrier layer may be provided on the outermost layer side of the base material, or it may be provided as an intermediate layer of the base material. When the base material is equipped with a water vapor barrier layer, it becomes easier to maintain a level of water vapor barrier properties that does not significantly change the properties of the extinguishing agent, regardless of the installation location or usage environment of the fire extinguishing device. The water vapor permeability of the water vapor barrier layer (according to JIS K 7129, under 40°C / 90%RH conditions) is not particularly limited as it can be designed according to the type of extinguishing agent, but is generally 10 g / m³. 2 It can be less than / day, and 1g / m³ 2It may be less than or equal to / day. From the viewpoint of adjusting the water vapor permeability, examples of water vapor barrier layers include polyester resin layers (e.g., PET layers) equipped with metal oxide vapor deposition layers such as alumina vapor deposition layers and silica vapor deposition layers, and metal foils such as aluminum foil. When the water vapor barrier layer is equipped with a metal oxide vapor deposition layer, the metal oxide vapor deposition layer may face the fire extinguishing agent side.

[0026] The base material may include a fire extinguishing agent support layer for supporting the fire extinguishing agent. Pre-forming the fire extinguishing agent on the fire extinguishing agent support layer facilitates handling of the fire extinguishing agent. Examples of fire extinguishing agent support layers include polyester resin layers (e.g., PET layers).

[0027] The thickness of the base material can be appropriately selected depending on the operating environment of the fire extinguishing body and the available space. For example, a thicker base material makes it easier to suppress water vapor permeation, obtain strength and rigidity, obtain a highly flat shape, and facilitates handling. Conversely, a thinner base material allows the fire extinguishing body to be installed in a narrow space. The thickness of the base material can be, for example, 4.5 to 1000 μm, may be 12 to 100 μm, or may be 12 to 50 μm. The thickness of the resin layer and the water vapor barrier layer can be appropriately adjusted according to the thickness of the base material. The thickness of the resin layer (total thickness if the base material includes multiple resin layers) can be, for example, 25 to 150 μm, or may be 30 to 100 μm. The thickness of the water vapor barrier layer can be, for example, 4.5 to 25 μm, or may be 7 to 12 μm.

[0028] (Fire extinguishing agent) There are no particular restrictions on the fire extinguishing agent; any agent possessing the so-called four elements of fire extinguishing (removal action, cooling action, suffocation action, and negative catalytic action) can be used as appropriate depending on the nature of the object. Examples of fire extinguishing agents include general fire extinguishing agents (such as powder-type fire extinguishing agents mainly composed of potassium salts, as well as common powder-type fire extinguishing agents such as sodium bicarbonate and phosphates), as well as sand (standard sand). ABC fire extinguishing agents are used as all-purpose fire extinguishing agents, while BC fire extinguishing agents are used for oil and electrical fires. If the object is a lithium-ion battery, BC fire extinguishing agents or other fire extinguishing agents for lithium-ion batteries should be used.

[0029] The amount of extinguishing agent can be appropriately selected depending on the type of object, the intensity of the fire at the time of ignition, the time required for extinguishing, the available space, etc. A larger amount of extinguishing agent improves the extinguishing capacity and shortens the extinguishing time, but it may also increase the bulk, limiting the places where the extinguishing device can be placed. For example, the amount of extinguishing agent can range from 0.4 to 3.9 g / cm³. 2 It can be set to 1.0~2.5 g / cm³ 2 That's fine.

[0030] The fire extinguishing agent may be mixed with a binder. That is, the fire extinguishing agent may be a composition containing a fire extinguishing agent (fire extinguishing agent component) and a binder. The amount of fire extinguishing agent contained in the composition (fire extinguishing agent composition) can be 70 to 97% by mass based on the total amount of the fire extinguishing agent composition.

[0031] Thermoplastic resins and thermosetting resins can be used as binder resins. Examples of thermoplastic resins include polyolefin resins such as polypropylene resins, polyethylene resins, poly(1-)butene resins, and polypentene resins, polystyrene resins, acrylonitrile-butadiene-styrene resins, methyl methacrylate-butadiene-styrene resins, ethylene-vinyl acetate resins, ethylene-propylene resins, polycarbonate resins, polyphenylene ether resins, acrylic resins, polyamide resins, polyvinyl chloride resins, polyvinyl alcohol, polyvinyl acetal, and polyvinyl butyral. Examples of thermosetting resins include natural rubber (NR), isoprene rubber (IR), butadiene rubber (BR), 1,2-polybutadiene rubber (1,2-BR), styrene-butadiene rubber (SBR), chloroprene rubber (CR), nitrile rubber (NBR), butyl rubber (IIR), ethylene-propylene rubber (EPR, EPDM), chlorosulfonated polyethylene (CSM), acrylic rubber (ACM, ANM), epichlorohydrin rubber (CO, ECO), polyvulcanized rubber (T), silicone rubber (Q), fluororubber (FKM, FZ), urethane rubber (U), and other rubbers, as well as polyurethane resins, polyisocyanate resins, polyisocyanurate resins, phenolic resins, epoxy resins, etc. The binder resin may contain a curing agent component.

[0032] (glue) Examples of adhesives include acrylic adhesives, epoxy adhesives, silicone adhesives, polyolefin adhesives, urethane adhesives, or polyvinyl ether adhesives, or synthetic adhesives thereof. Of these, epoxy-urethane synthetic adhesives are preferably used as the adhesive because they offer both good adhesion to the substrate at high temperature and humidity (85°C-85%RH) and low cost.

[0033] By using an adhesive, the periphery of the base material can be joined even if the resin layer does not have thermal melting properties. When the periphery of the base material is joined using an adhesive, the sealed portion of the packaging bag periphery can be called the bonded portion.

[0034] In Figure 3, adhesive is used only in the sealing portion, but if the adhesive does not affect the stability of the fire extinguishing agent, it may be used on the entire inner surface of the substrate.

[0035] Figure 7 is a schematic cross-sectional view of a fire extinguishing body according to another embodiment. The fire extinguishing body 60 comprises a packaging bag 61 formed from a base material, a fire extinguishing agent 62 sealed inside the packaging bag, and an adhesive layer 64 (or bonding layer) and a release film 65 on one side of the packaging bag. The base material includes a resin layer 611 as an inner layer, a water vapor barrier layer 612 as an outer layer, and a fire extinguishing agent support layer 613 for supporting the fire extinguishing agent. The resin layer 611 and the water vapor barrier layer 612 are laminated via an adhesive layer 63. In this figure, the fire extinguishing agent is formed as a layer on the fire extinguishing agent support layer, but it may be sealed alone (for example, as powder) inside the resin layer without using the fire extinguishing agent support layer. In this embodiment, since the adhesive layer 64 is provided on one side of the packaging bag, the fire extinguishing body can be installed more easily in locations where there is a risk of ignition. In addition, a release film 65 is provided so as to cover the adhesive layer 64. The release film 65 is removed when the fire extinguishing body is attached to the desired location, and may be made of resin or paper.

[0036] The fire extinguishing body may further comprise a design layer. The design layer can be formed by printing or printing. Specific examples of designs include wood grain patterns that are mindful of living spaces, solid white or gray patterns such as tile patterns, as well as pictures, designs, and text patterns. Providing a design layer has effects such as enhancing the aesthetic appeal, allowing the fire extinguishing body to blend in with the surrounding environment, and increasing the strength of the fire extinguishing body. For example, in the embodiment shown in Figure 7, the design layer can be provided on the side of the packaging bag opposite to the adhesive layer (the side to which the fire extinguishing body is attached). If the layer contained in the base material is transparent, the design layer may be provided within the base material; for example, in the embodiment shown in Figure 7, the design layer may be provided inside the water vapor barrier layer. The design layer may be a single layer or a multi-layer structure.

[0037] (Objects subject to fire extinguishing) There are no particular restrictions on what can be targeted for fire extinguishing, as long as it is likely to ignite. Examples of things that are likely to ignite include electrical wires, distribution boards, switchboards, control panels, storage batteries (lithium-ion batteries, etc.), building materials such as wallpaper and ceiling materials, lithium-ion battery collection boxes (recycling boxes), trash cans, automotive-related parts, electrical outlets, and outlet covers.

[0038] <Manufacturing method for fire extinguishing devices> Fire extinguishing devices can be manufactured, for example, by the following methods, but are not limited to these.

[0039] Figure 5 is a schematic diagram showing a method for manufacturing a fire extinguishing body according to one embodiment. As shown in the figure, a fire extinguishing body can be obtained by providing a fire extinguishing agent 42 between a pair of base materials 44 and sealing the periphery of the base materials 44 by heat sealing or adhesive.

[0040] Figure 6 is a schematic diagram showing a method for manufacturing a fire extinguishing body according to another embodiment. As shown in the figure, a fire extinguishing body can be obtained by folding a single base material 54, placing a fire extinguishing agent 52 between the opposing base materials 54, and joining and sealing the periphery of the base material 54 other than the folded portion with heat sealing or adhesive.

[0041] Furthermore, a fire extinguishing body can be obtained by joining the periphery of a pair of base materials with heat sealing or adhesive while leaving an opening, then filling the opening with fire extinguishing agent, and finally sealing the opening with heat sealing or adhesive.

[0042] Alternatively, a fire extinguishing body can be obtained by folding one substrate in half, joining the periphery of the opposing substrate with heat sealing or adhesive while leaving an opening, inserting a fire extinguishing agent through the opening, and then sealing the opening with heat sealing or adhesive.

[0043] When using a fire extinguishing agent composition containing a fire extinguishing agent and a binder as a fire extinguishing agent, for example, a coating liquid containing the fire extinguishing agent composition may be applied to a substrate (on a resin layer or a fire extinguishing agent support layer) to form a layer of fire extinguishing agent, and this can be used to provide the fire extinguishing agent between substrates. Alternatively, the fire extinguishing agent may be provided between substrates by placing a resin mixed with the fire extinguishing agent onto the substrate. The fire extinguishing agent (fire extinguishing agent-containing layer) may be a layer of a composition containing a fire extinguishing agent and a binder, or a resin layer containing a fire extinguishing agent. [Examples]

[0044] The present invention will be described in more detail by the following examples, but the present invention is not limited to these examples.

[0045] <Preparation of fire extinguishing devices> (Example 1) Toyo Ink Co., Ltd. prepared epoxy-urethane synthetic adhesives AD-393 and CAT-EP5, along with IPA as a diluent. These were mixed in a ratio of 15:1:25.7 and stirred for 1 minute to produce a dry laminating adhesive with a solid content of 20% by mass. We prepared SC-30 (30 μm thick), a CPP manufactured by Mitsui Chemicals Tohcello, and GL-ARH (12 μm thick), an alumina-deposited PET manufactured by Toppan Printing Co., Ltd., both measuring 210 mm x 297 mm. The above-mentioned dry laminating adhesive was applied to the vapor-deposited layer side of GL-ARH using a wire bar #14 via a bar coating method, and dried in an oven at 80°C for 30 seconds, with a dry coating amount of 2g / m². 2 An adhesive layer (ADH) was obtained. Using a desktop laminator FA-570 manufactured by Taisei Laminator Co., Ltd., the corona-treated side of SC-30 was laminated to the above adhesive layer under conditions of a lamination temperature of 60°C and a pressure of 0.5 MPa to obtain a laminated film. Two 80mm square samples were cut from the laminated film and placed on a TP-701-B heat sealer manufactured by Tester Sangyo Co., Ltd., with the SC-30s facing each other. Then, at 150°C, 0.5MPa, and for 10 seconds, the three edges of the laminated film were heat-sealed using a sealing bar that was 1cm wide and 30cm long, to obtain a laminated film bag. 32.5g of ABC fire extinguishing agent manufactured by Morita Miyata Industries Co., Ltd. was weighed and filled into a laminated film bag as a fire extinguishing agent. Using the heat sealer described above, the opening end was heat-sealed under the same conditions as described above to create a fire extinguishing body.

[0046] (Example 2) Instead of the CPP used in Example 1, MC-S#60 (thickness 60 μm), an LLDPE manufactured by Mitsui Chemicals Tohcello Co., Ltd., was prepared, and instead of the alumina-deposited PET, GL-RD (thickness 12 μm), a silica-deposited PET manufactured by Toppan Printing Co., Ltd., was prepared. A laminated film was then fabricated using the same procedure as in Example 1. Except for using the laminated film thus obtained, a fire extinguishing body was obtained in the same manner as in Example 1.

[0047] (Example 3) Three layers were prepared: SC-30 CPP (50 μm thick) manufactured by Mitsui Chemicals Tohcello, 8021 aluminum foil (7 μm thick) manufactured by Toyo Aluminum, and S10 PET (12 μm thick) manufactured by Toray Industries, all measuring 210 mm x 297 mm. Each layer was bonded together using a dry laminating adhesive in the same procedure as in Example 1 to obtain a three-layer laminated film. A fire extinguishing body was then prepared in the same manner as in Example 1, except that the laminated film thus obtained was used.

[0048] (Example 4) A laminated film was prepared in the same manner as in Example 1. A rectangular sample measuring 80 mm x 160 mm was cut from this laminated film and folded in half with the SC-30 facing inward and the opposite short sides aligning. This was placed in a heat sealer TP-701-B manufactured by Tester Sangyo Co., Ltd., and the two edges of the laminated film other than the short side were heat-sealed using a sealing bar with a width of 1 cm and a length of 30 cm at 150°C, 0.5 MPa, and for 10 seconds to obtain a laminated film bag. 32.5g of ABC fire extinguishing agent manufactured by Morita Miyata Industries Co., Ltd. was weighed and filled into a laminated film bag as a fire extinguishing agent. Using the heat sealer described above, the opening end was heat-sealed under the same conditions as described above to create a fire extinguishing body.

[0049] (Example 5) A laminated film was prepared in the same manner as in Example 2. A fire extinguishing body was prepared in the same manner as in Example 4, except that the laminated film obtained in this manner was used.

[0050] (Example 6) A laminated film was prepared in the same manner as in Example 3. A fire extinguishing body was prepared in the same manner as in Example 4, except that the laminated film obtained in this manner was used.

[0051] The fire extinguishing devices obtained in each example were easy to handle, and because the extinguishing agent was sealed in a packaging bag, the properties and stability of the extinguishing agent were also excellent. By placing such fire extinguishing devices in advance near the target object, it is possible to prevent the occurrence and spread of fire caused by the ignition of the target object.

[0052] The following evaluations were conducted on the fire extinguishing devices in each case. The results are shown in Table 1.

[0053] <Water vapor permeability of the water vapor barrier layer> The water vapor transmission rate of the water vapor barrier layer was measured. The measurement was performed in accordance with the JIS K 7129B MOCON method under conditions of 40°C / 90%RH.

[0054] <Changes in the appearance of fire extinguishing agents> The fire extinguishing material was left at 40°C / 90%RH conditions for 7 days. Afterwards, the presence or absence of changes in the appearance of the fire extinguishing agent (discoloration, swelling, etc. of the fire extinguishing agent-containing layer) was checked.

[0055] [Table 1] [Industrial applicability]

[0056] The fire extinguishing body of the present invention can be suitably used in components used in industrial materials such as building materials, automobile components, aircraft components, and electronic components. [Explanation of Symbols]

[0057] 10, 20, 30, 60... Fire extinguishing body, 11, 21, 31, 61... Packaging bag, 12, 22, 42, 52, 62... Fire extinguishing agent, 23... Adhesive, 11a, 21a, 31a... Sealing part, 31b... Folded part, 44, 54... Base material, 63... Adhesive layer, 64... Adhesive layer (adhesive layer), 65... Release film, 611... Resin layer, 612... Water vapor barrier layer, 613... Fire extinguishing agent support layer.

Claims

1. The packaging comprises a packaging bag formed from a base material including a resin layer, and a fire extinguishing agent sealed inside the packaging bag. A fire extinguishing body wherein the packaging bag has a sealing portion at its periphery, and the base materials are joined together at the sealing portion.

2. The fire extinguishing body according to claim 1, wherein the resin layer comprises a polyolefin resin.

3. The fire extinguishing body according to claim 1 or 2, wherein the thickness of the base material is 4.5 to 1000 μm.

4. The fire extinguishing body according to any one of claims 1 to 3, wherein the base material further comprises a water vapor barrier layer.

5. The water vapor transmission rate of the aforementioned water vapor barrier layer (according to JIS K 7129, under 40°C / 90% RH conditions) is 10 g / m². ２ The fire extinguishing body according to claim 4, wherein the value is less than or equal to / day.

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