JP6093109B2 - Fire extinguisher curtain - Google Patents

Description

  The present invention relates to a fire curtain that exhibits excellent fire extinguishing properties against a fire.

  A general curtain is suspended from a curtain rail on the indoor side of a window with a certain degree of strength via a hook. The general-purpose curtain is made of a light-shielding material so that sunlight is not directly inserted into the room and the room cannot be easily looked into from the outside.

  However, since ordinary curtains are made of materials such as polyester, cotton, acrylic, and rayon, there is a risk that when a flame ignited from a stove, tempura oil or the like ignites, it spreads in a short time and a fire occurs.

In order to solve the above-described problem of fire occurrence, Patent Document 1 discloses a curtain fabric having sufficient flame retardancy and excellent light shielding properties. The curtain fabric is characterized in that a layer comprising a synthetic fiber and / or a natural fiber is laminated on at least one side of a layer comprising a flameproof fiber.

  Patent Document 2 discloses a non-combustible curtain that does not burn even in contact with a flame, does not generate smoke or toxic gas, does not melt even in contact with a high temperature, and does not deform. The non-combustible curtain is characterized in that a photocatalyst coating that forms a hydrophobic coating film by curing at room temperature is applied to and supported on a cloth woven with glass fibers.

  Further, Patent Document 3 discloses a lace curtain that has excellent nonflammability, prevents the expansion of an initial fire, is inexpensive, has moderate stretchability, and is free from fraying and misalignment. . The non-combustible lace curtain is knitted with a radial knitting structure using long glass fiber yarns having a single fiber diameter of 7 μm or less, and a radial yarn insertion yarn is inserted between the radial yarns.

Japanese Patent Laying-Open No. 2005-334425 (Claims etc.) JP 2002-112883 A (Claims etc.) JP-A-9-28556 (Claims etc.)

  However, since the curtain fabric described in the above-mentioned Patent Document 1 has a flame-resistant synthetic fiber or natural fiber laminated on the flame-resistant fiber layer, the curtain fabric itself has the property of hardly burning, Since it melts, it was not possible to maintain the shape of the fabric until it withstood the heat of the flame and extinguished. Moreover, since the fiber which comprises a nonflammable curtain of patent document 2, and the lace curtain of patent document 3 is formed with glass fiber etc., respectively, it resists the heat of a flame and maintains a shape for a certain amount of time. Although it was possible, it did not have an active fire extinguishing action such as endothermic or release of nonflammable gas.

  Furthermore, since the curtains of Patent Documents 1, 2, and 3 listed above are suspended on rails with a certain degree of strength, they can be used as fire extinguishing tools by removing the curtain itself in the event of a fire. There wasn't.

  Accordingly, an object of the present invention is to fabricate a chemical action that contributes to extinguishing by thermal decomposition when covered with a flame in order to solve the above-mentioned problems, and for a certain period of time until extinguishing is completed By maintaining this shape, it is desirable to provide a fire extinguishing curtain that exhibits excellent fire extinguishing properties against flames, can be used as a fire extinguishing tool during initial fire extinguishing, and can also be used as an escape tool.

  In order to solve the above problems, the fire extinguishing curtain of the present invention is characterized in that it is made of a fabric obtained by blending, twisting, weaving and / or knitting a modacrylic fiber with a heat resistant fiber or an incombustible fiber.

  Another fire extinguishing curtain of the present invention is characterized by being made of a fabric made of modacrylic fiber on which a silicone compound film is formed.

  Furthermore, another fire extinguishing curtain of the present invention is composed of modacrylic fiber, heat resistant fiber and / or non-combustible fiber to which metal compound fine particles that release water by thermal decomposition accompanied by heat absorption are fixed through a silicone compound film. It is characterized by comprising a fabric.

  In the fire curtain of the present invention, the silicone compound is preferably a polysiloxane having a hydrogen group as a substituent.

  Further, in the fire extinguishing curtain of the present invention, when the connecting tool has a latching portion with respect to the rail, or the latching portion is formed by itself, an excessive load is generated on the curtain, the latching portion is deformed. Then, it is preferable to attach a hanging tool that allows the curtain to fall from the rail.

  According to the fire extinguishing curtain of the present invention, when covered with a flame, the chemical action contributing to the fire extinguishing can be exhibited by thermal decomposition, and the shape of the curtain fabric can be maintained for a certain time until the extinguishing is completed. .

  In addition, by installing the hanging tool according to the present invention, the curtain can be easily removed from the rail in the event of a fire, making it a fire extinguishing tool at the time of initial fire extinguishing, and further as a fire fighting tool protecting the body from flames in the event of a fire Can also be used.

1 is an overall view of a fire extinguishing curtain in an embodiment of the present invention. (A) And (b) is explanatory drawing which shows an example of a hanging tool. It is explanatory drawing which shows the removal state of the fire extinguishing curtain with which the said hanging tool was mounted | worn.

  Hereinafter, embodiments of the fire extinguishing curtain of the present invention will be described with reference to the drawings.

  The fire extinguishing curtain 1 shown in FIG. 1 is suspended from a curtain rail 30 installed on the indoor side of a window by a hanging tool 2 via a runner or a ring so as to be openable and closable in the present invention. The color and the like can be appropriately selected according to the application. In general, the curtain 1 is formed of a light-shielding material so that sunlight does not directly enter the room, and so that the room cannot be easily viewed from the outside.

  The fire extinguishing curtain in the first embodiment of the present invention has a property capable of expressing a chemical action that contributes to fire extinguishing by thermal decomposition, and has the property that modacrylic fiber can maintain the shape of the fabric for a certain time until the fire extinguishing is completed. It is composed of a fabric that is blended, twisted, woven and / or knitted with heat-resistant fibers or non-combustible fibers.

  As specific examples of modacrylic fibers, “Kanekaron” and “Protex” manufactured by Kaneka Corporation are preferably used. These modacrylic fibers can be extinguished by stopping the combustion reaction by the action of releasing a non-combustible substance during thermal decomposition.

  The heat-resistant fiber means a fiber having a melting point or decomposition point of about 350 ° C. or higher, preferably 400 ° C. or higher. Preferred examples include para-aramid fibers (thermal decomposition temperature: 480 to 570 ° C.), meta-aramid fibers (thermal decomposition temperature: 400 to 430 ° C.), polybenzimidazole fibers (glass transition temperature: 400 ° C. or higher), poly Polybenzoxazole fibers (thermal decomposition temperature: 650 ° C.) such as (p-phenylenebenzobisoxal) (PBO) and polybenzthiazole fibers (thermal decomposition temperature: poly (p-phenylenebenzobisthiazole) (PBZT) 650 ° C.), polyamideimide fiber (thermal decomposition temperature: 350 ° C. or higher), melamine fiber (thermal decomposition temperature: 400 ° C. or higher), polyimide fiber (thermal decomposition temperature: 350 ° C. or higher), polyether ether ketone fiber (melting point: 345) ° C) and polyarylate fibers (thermal decomposition temperature: 400 ° C or higher). Examples of non-combustible fibers include glass fibers, silica fibers, alumina fibers, ceramic fibers, and carbon fibers.

  As a method of combining the modacrylic fiber with the heat-resistant fiber or the non-combustible fiber, a method such as blending, knitting, knitting or knitting known as a general fiber manufacturing technique can be used. The mixing ratio of the weight of the modacrylic fiber to be mixed and the weight of the heat-resistant fiber and / or the non-combustible fiber can be preferably in the range of 20:80 to 80:20, particularly preferably 40:60 to 60: Within the range of 40. If the mixing ratio of modacrylic fiber is less than 20% by weight, a sufficient fire extinguishing performance cannot be obtained. Conversely, if the mixing ratio of heat resistant fiber and / or nonflammable fiber is less than 20% by weight, the flame resistance is insufficient. Moreover, it is necessary to mix the modacrylic fiber and the heat-resistant fiber or the non-combustible fiber on the average for the entire fabric. If there is a part where the ratio of one of the materials is extremely high in the fabric, the fire extinguishing performance of that part decreases, which is not preferable. In particular, when a fabric is constituted by a woven fabric, it is necessary to use heat-resistant fibers or incombustible fibers in an appropriate ratio for both warp and weft. Further, in a woven fabric in which warp yarns or weft yarns are woven with 100% by weight of modacrylic fibers, it is difficult to maintain the shape because either warp yarns or weft yarns are carbonized and broken even if they are mixed on average. Therefore, the diameter yarn or the weft is preferably mixed within the above-mentioned mixing ratio range.

  The fire extinguishing curtain 1 of the present invention exhibits excellent fire extinguishing properties against flames, can be used as a fire extinguishing tool during initial fire extinguishing, and can also be used as an evacuation tool.

  The fire extinguishing curtain in the second embodiment of the present invention is composed of a fabric made of modacrylic fiber on which a silicone compound film is formed. As the silicone compound used for enhancing the heat resistance of the modacrylic fiber by forming a film, those having various substituents on siloxane-bonded silicon can be used. Examples of such substituents include a hydrogen group, a methyl group, a phenyl group, an amino group, a polyether group, an epoxy group, and a carboxyl group, and are particularly limited as long as they contribute to improving heat resistance. It is not a thing.

  By forming a silicone compound film on modacrylic fiber that has the property of developing a chemical action that contributes to fire extinguishing by thermal decomposition, it is possible to impart heat resistance that can maintain the shape of the fabric for a certain period of time until fire extinguishing is completed. it can.

  The fire extinguishing curtain according to the third embodiment of the present invention is made of modacrylic fiber, heat resistant fiber and / or non-combustible fiber to which metal compound fine particles that release water by thermal decomposition with heat absorption are fixed through a silicone compound film. It is comprised with the fabric which becomes.

  In this embodiment, metal compound fine particles that release water by thermal decomposition with endotherm are used as a substance that exhibits a chemical action that contributes to fire extinguishing by thermal decomposition. By releasing water having a large heat capacity by endothermic pyrolysis, the ambient temperature can be lowered. Examples of such metal compounds include aluminum hydroxide, magnesium hydroxide, calcium hydroxide, dosonite, calcium aluminate and the like.

  As the silicone compound, those having various substituents on siloxane-bonded silicon can be used as in the second embodiment. Examples of such substituents include a hydrogen group, a methyl group, a phenyl group, an amino group, a polyether group, an epoxy group, and a carboxyl group, and are not particularly limited as long as they contribute to improvement in heat resistance. .

  When using a silicone compound in the second embodiment and the third embodiment of the present invention, it is preferable to use a polysiloxane having a hydrogen group as a substituent. This is because the polysiloxane having a hydrogen group generates only water and silicon dioxide during decomposition and does not generate a combustible gas.

  As another preferred example of the present invention, in the fire extinguishing curtain of the first to third embodiments, the connecting tool has a latching portion for the rail, or the latching portion is formed by itself to form the curtain. When a load more than necessary is generated, it is preferable to attach a hanging tool in which the latching portion is deformed and the curtain falls from the rail. The suitable example of this hanging tool is shown in FIG. 2 and FIG.

  2 and 3 is a hook body 10 that is attached to an adjuster 20 that adjusts the height at which the fire extinguishing curtain 1 is suspended. The hook body 10 is composed of a hook portion 11 that is suspended from a ring 32 of the curtain rail 30 as a hairpin-shaped hooking portion, and a ratchet portion 12 that is attached to the ratchet 21 of the adjuster 20. . In particular, the hook body 10 is made of a material that is elastically deformed without being damaged when an excessive load is generated on the fire extinguishing curtain 1. Specifically, a metal material such as steel or a resin material such as a polyolefin resin, a polyester resin, a polycarbonate resin, and a polyamide resin, or an elastomer material can be used.

  Further, as shown in FIG. 2B, the hook body 10 of the illustrated example can be attached to or detached from the hook body 10 and the adjuster 20 to be separated. Therefore, it is excellent in convenience when washing and when the fire curtain 1 is mounted again. In addition, the hanging tool 2 can exhibit the same effect only by the hook body 10 that does not have the ratchet portion 12.

  FIGS. 3A, 3 </ b> B, and 3 </ b> C show a usage state in which the fire extinguishing curtain 1 is dropped from the rail 30 by the hanging tool 2 in which the hook body 10 is attached to the adjuster 20.

  (A) shows the state which inserted the hook body 10 in the ring 32 of the runner 31 of the curtain rail 30, and suspended the fire extinguishing curtain 1 on the curtain rail 30. FIG.

  (B) shows the state which gave the load more than necessary to the fire extinguishing curtain 1. FIG. For example, when a load of about 10 kg is applied to the fire extinguishing curtain 1, the hook body 10 formed of a material that is elastically deformed is deformed according to the load.

  When a further load is applied to the fire extinguishing curtain 1, the hook body 10 is further deformed, and as shown in (c), the hook body 10 is separated from the ring 32 and the fire extinguishing curtain 1 falls. Therefore, for example, when a fire breaks out from cooking utensils or tempura oil during cooking, the fire extinguishing curtain 1 can be used as a fire extinguishing tool for initial fire extinguishing by removing the fire extinguishing curtain 1 from the curtain rail 30 and covering the upper part of the cooking utensil. .

  Even when the flame spreads, the fire extinguishing curtain 1 can be removed from the curtain rail 30 and the fire extinguishing curtain 1 can be covered with the body to serve as an evacuation tool in the event of a fire.

Hereinafter, the present invention will be specifically described based on examples.
<Flame resistance evaluation by oxygen index method>
The flame resistance evaluation of the fabric for curtains was evaluated with an E-2 test piece by the E method (oxygen index method test) in accordance with JIS L 1091 “Flameability test method for textile products”.

<Evaluation of fire extinguishing performance of fabric samples>
10 ml of commercially available tempura oil was put in a circular stainless steel cup having an inner diameter of 60 mm and a height of 30 mm, and heated directly with a gas stove until spontaneous ignition. After spontaneous ignition, the gas supply was immediately stopped to extinguish the gas stove, and a 20 cm square fabric sample was covered with a circular stainless steel cup in which tempura oil was burning. And the time required for fire extinguishing was measured, and the shape change of the fabric sample by heat was observed.

Example 1
Fabrication for curtains is made using warp and weft yarns made by twisting Kaneka's "Protex" No. 40 single yarn and Teijin's aramid fiber "Conex" No. 40 single yarn. And sewn on the curtain. As a result of evaluating the flame retardancy of this curtain, the oxygen index was 38.2. Moreover, as a result of evaluating the fire extinguishing performance of the curtain, the fire extinguisher was extinguished immediately after covering the fabric sample, and the fabric sample turned black due to heat but was not damaged.

(Example 2)
Padded with a 10% aqueous solution of “Polon MWS” manufactured by Shin-Etsu Chemical Co., Ltd. containing hydrogen group-containing polysiloxane on a fabric manufactured by “Kanekaron” manufactured by Kaneka Co., Ltd. at a temperature of 120 ° C. A hydrogen group-containing silicone film was formed on the fiber surface by heat curing for 5 minutes. The woven fabric on which the silicone film was formed was sewed on a curtain and evaluated for flame retardancy. As a result, the oxygen index was 30.3. Moreover, as a result of evaluating the fire extinguishing performance of the curtain, the fire extinguisher was extinguished 2 seconds after covering the fabric sample, the fabric sample turned black due to heat, and the portion in contact with the stainless steel cup contracted due to heat and was partially damaged. It was n’t torn.

(Comparative Example 1)
As a result of sewing a fabric made of “Kanekaron” manufactured by Kaneka Corporation on a curtain and evaluating flame retardancy, the oxygen index was 29.4. Further, as a result of evaluating the fire extinguishing performance of the curtain, it was possible to extinguish the fire once 3 seconds after covering the fabric sample, but the fabric was severely broken by heat, and the tempura oil immediately reignited, so that the complete fire extinguishing was not achieved.

(Example 3)
Aluminum hydroxide “BF103” manufactured by Nippon Light Metal Co., Ltd., “Polon MWS” manufactured by Shin-Etsu Chemical Co., Ltd. containing hydrogen group-containing polysiloxane, and water were blended in a weight ratio of 1: 3: 6, respectively. A treatment solution was prepared, and a glass fiber fabric was pad-treated at a pickup rate of 100%. Then, aluminum hydroxide was fixed to the fiber surface through a hydrogen group-containing silicone coating by heat curing at 120 ° C. for 5 minutes. As a result of evaluating the flame retardancy by sewing this fabric on the curtain, it was nonflammable. Moreover, as a result of evaluating the fire extinguishing performance of the curtain, the fire extinguisher was extinguished 2 seconds after the cloth sample was covered, and the fire did not recur due to the temperature falling. Further, there was no change in the fabric sample due to heat.

(Comparative Example 2)
As a result of sewing a non-flammable glass fiber fabric on a curtain and evaluating the fire extinguishing performance, the fire was extinguished once 2 seconds after covering the fabric sample. The fire was not completely extinguished.

DESCRIPTION OF SYMBOLS 1 Fire extinguishing curtain 2 Suspension tool 10 Hook body 11 Hook part 12 Ratchet part 20 Adjuster 21 Ratchet 30 Curtain rail 31 Runner 32 Ring

Claims (5)

A fire extinguishing curtain comprising a fabric obtained by blending modacrylic fiber with heat-resistant fiber or non-combustible fiber, knitting, knitting, and / or knitting , and having a chemical action contributing to fire extinguishing. A fire extinguishing curtain comprising a fabric made of modacrylic fiber on which a film of a silicone compound is formed and having a chemical action contributing to fire extinguishing. It is composed of a fabric made of modacrylic fiber, heat-resistant fiber and / or non-combustible fiber to which metal compound fine particles that release water by thermal decomposition accompanied by endotherm are fixed through a silicone compound film , and for fire fighting. A fire extinguishing curtain characterized by having a contributing chemical action .   The fire extinguishing curtain according to claim 2 or 3, wherein the silicone compound is a polysiloxane having a hydrogen group as a substituent.   The coupling has a latching part for the rail, or the latching part itself forms a latching part, and when an excessive load is generated on the curtain, the latching part is deformed and the curtain is dropped from the rail. The fire extinguishing curtain according to any one of claims 1 to 4, wherein a tool is mounted.

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