High temperature resistant flame retardant thermal insulation fabric

Abstract

The present invention discloses a high-temperature resistant, flame-retardant, and thermal insulation fabric, which relates to the technical field of fireproof fabrics. The present invention includes a fire extinguishing layer, wherein a heat-insulating layer, a flame-retardant layer, and a combustion protection layer are sequentially arranged on one side of the fire extinguishing layer, and a comfort layer is arranged on the other side of the fire extinguishing layer. A plurality of storage holes are opened on the side wall of the fire extinguishing layer, and each storage hole is provided with a powder cell, and the interior of the powder cell is loaded with a fire extinguishing dry powder for flame retardant fire extinguishing. By arranging the fire extinguishing dry powder, when the heat-insulating layer, the flame-retardant layer, and the combustion protection layer are destroyed or burned, the fire extinguishing layer will come into direct contact with the high-temperature air and the flame. The fire extinguishing dry powder will decompose under the heat, which can absorb a large amount of heat, quickly cool down the body of the personnel, and reduce the impact of heat radiation on the personnel's body. It can also release a large amount of non-combustible gas to dilute the high-temperature air, inhibit the progress of flame combustion, and produce an isolation and push-away effect on the flame, preventing the fabric from continuing to burn, and effectively improving safety and protection.

Description

Technical Field

[0001] The present invention relates to the technical field of fireproof fabrics, and in particular to a high-temperature resistant, flame-retardant, and thermally insulating fabric. Background Art

[0002] In special industries such as firefighting, art photography, film and television, practitioners are often required to directly contact high temperature sources and fire scenes. This requires practitioners to wear special protective equipment, such as protective clothing and protective masks made of professional heat-insulating flame-retardant fabrics. The high-temperature resistant flame-retardant fabrics used to make fireproof and heat-insulating protective clothing must have the characteristics of anti-radiant heat, flame retardancy, heat insulation, high temperature resistance, high strength and wear resistance, as well as comfort and breathability.

[0003] The multi-layer composite fabrics used in existing fireproof and heat-insulating clothing can be used in most high-temperature and high-flammability environments. However, on the set of film and television dramas, in order to achieve realistic shooting effects, actors or crew members are often required to wear protective clothing and costumes and ignite the pre-coated fuel around their bodies. Although traditional multi-layer fireproof fabrics can play a certain flame retardant and heat-insulating role, when accidents occur during the performance of the actors, such as the protective clothing being scratched or the internal structure of the fabric being damaged, the protective effect of the protective clothing will be greatly reduced, and it will be difficult to provide sufficient safety protection for the personnel. For this reason, a high-temperature resistant, flame-retardant and heat-insulating fabric is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the multi-layer composite fabrics used in existing fireproof and heat-insulating clothing can be suitable for most high-temperature and high-flammability environments, but on the set of film and television dramas, in order to achieve realistic shooting effects, actors or crew members are often required to wear protective clothing and costumes and ignite the fuel pre-coated around their bodies. Although traditional multi-layer fireproof fabrics can play a certain flame retardant and heat-insulating role, when an accident occurs during the actor's performance, such as the protective clothing being scratched or the internal structure of the fabric being damaged, the protective effect of the protective clothing will be greatly reduced, and it will be difficult to provide sufficient safety protection for personnel. The present invention provides a high-temperature resistant, flame-retardant and heat-insulating fabric.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A high-temperature resistant, flame-retardant, and thermally insulating fabric comprises a fire extinguishing layer, wherein a heat insulating layer, a flame-retardant layer, and a combustion protection layer are sequentially arranged on one side of the fire extinguishing layer, and a comfort layer is arranged on the other side of the fire extinguishing layer. A plurality of storage holes are opened on the side wall of the fire extinguishing layer, and powder cells are arranged in each of the storage holes. The interior of the powder cells is loaded with fire extinguishing dry powder for flame retardancy and fire extinguishing.

[0007] Furthermore, the fire extinguishing dry powder mainly includes the following components by weight: 20%-30% of sodium bicarbonate, 35%-40% of ammonium dihydrogen phosphate, 25%-35% of ammonium sulfate, less than 5% of moisture-proof agent and other powders.

[0008] Furthermore, the fire extinguishing layer and the powder cells are both made of composite PET fibers that have been subjected to a web-laying and needle-punching process, and the inner wall of the powder cell is coated with a PU (polyurethane) coating.

[0009] Furthermore, the composite PET fiber mainly includes the following components by weight: 70%-80% of PET (polyethylene terephthalate) and 15%-25% of PA (polyamide).

[0010] Furthermore, the heat insulation layer is made of a blend of PPS (polyphenylene sulfide) fiber and PI (polyimide) fiber.

[0011] Furthermore, the flame retardant layer is made of PU (polyurethane) high temperature anti-sticking fiber through a web laying and needle punching process.

[0012] Furthermore, the combustion protection layer is made of asbestos fibers that have been subjected to a mesh laying and needle punching process. The interior of the combustion protection layer is a porous structure, and the interior of the combustion protection layer contains combustible materials.

[0013] Furthermore, the combustible material is rosin powder, which is dissolved in an ethanol reagent to prepare a mixed solution, and then the mixed solution is brushed on the outer surface of the combustion protection layer multiple times, and then the ethanol reagent is allowed to evaporate to allow the combustible material to dry naturally in the shade, so that the rosin powder remains inside the combustion protection layer.

[0014] Furthermore, the comfort layer is made of non-woven fabric made of PET (polyethylene terephthalate) fiber, and the side of the comfort layer away from the fire extinguishing layer is coated with PTFE: PTFE (polytetrafluoroethylene) coating.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention provides a fire extinguishing layer, which allows the fire extinguishing powder to decompose under heat, absorb a large amount of heat, quickly cool down the personnel, reduce the impact of heat radiation on the personnel, and release a large amount of non-combustible gas to dilute the high-temperature air, inhibit the flame combustion process, and produce an effect of isolating and pushing away the flame, preventing the fabric from continuing to burn. This provides the last and most reliable insurance measure for the safety of personnel and effectively improves safety protection.

[0017] 2. The present invention uses a mixture of sodium bicarbonate, ammonium dihydrogen phosphate and ammonium sulfate to prepare a fire extinguishing dry powder. The fire extinguishing dry powder can be decomposed when subjected to high temperature, causing multiple reactions to produce ammonia, water vapor, nitric oxide and nitrogen dioxide, etc., which gradually react fully in a high-temperature environment. The decomposition reaction and the endothermic effect of water vaporization are used for cooling, diluting the air and blowing out the flames, providing reliable protection for personnel safety.

[0018] 3. The present invention provides a combustion protection layer, so that when shooting scenes with flames burning around the human body, the combustion of the pre-prepared fuel will simultaneously ignite the costume and the combustible material inside the combustion protection layer, so that the combustion protection layer can provide a longer combustion process, which can extend the burning time and stabilize the combustion effect during filming, improve the filming effect, and can be used multiple times, reducing the difficulty and cost of filming;

[0019] 4. The present invention uses composite PET fibers to ensure that the fire extinguishing layer and the powder cells have sufficient tensile strength, allowing the powder cells to withstand the expansion caused by the gas generated by the slight decomposition of the fire extinguishing powder at room temperature. At the same time, the PU polyurethane coating can form a thin film inside the powder cells to wrap the fire extinguishing powder. The good airtightness of the PU polyurethane coating prevents the fire extinguishing powder from decomposing and overflowing prematurely, ensuring that the fire extinguishing layer can be stably effective at critical moments.

[0020] 5. The present invention uses composite PET fibers, which enable polyethylene terephthalate to have excellent physical properties, while polyamide can provide the composite PET fibers with sufficient toughness and aging resistance, so that the monofilament structure of the composite PET fibers has good tensile strength and high toughness, meeting the needs of daily storage of fire extinguishing dry powder in a single powder cell, and enabling it to withstand the expansion caused by the gas generated by the slight decomposition of the fire extinguishing dry powder at room temperature;

[0021] 6. The flame retardant layer of the present invention is made of high-temperature anti-stick cloth made of polyurethane fiber, which has excellent fire retardant and heat insulation properties. The smoothness and non-stickiness of the anti-stick cloth surface make it difficult for combustion products to adhere to it. In the event of danger, external costumes, fuel and materials produced by the combustion of the fabric itself are difficult to adhere to the flame retardant layer, effectively reducing the damage caused by the adhesion of flammable substances.

[0022] 7. The polyphenylene sulfide fiber and polyimide fiber used in the present invention both have good heat resistance, heat insulation, flame retardancy, self-extinguishing and spinnability, and have low thermal conductivity. The thermal insulation layer made by blending the two fibers not only protects the fabric itself and the human body, but also provides thermal insulation protection for the fire extinguishing powder, effectively preventing the fire extinguishing powder from decomposing prematurely, so that the protective effect of the fire extinguishing powder can be stably maintained;

[0023] 8. The present invention adopts PET fiber and polytetrafluoroethylene coating to make the comfort layer waterproof and breathable, and has certain oil resistance, anti-fouling, wear resistance, corrosion resistance and other properties. It can also discharge warm moisture in time to keep the inner surface of the comfort layer dry, improve the wearer's feeling, and facilitate the subsequent cleaning of the inner layer of the fabric, which is conducive to multiple use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the fire extinguishing layer of the present invention;

[0026] Figure numerals: 1. Fire extinguishing layer; 2. Heat insulation layer; 3. Flame retardant layer; 4. Burning protection layer; 5. Powder cell; 6. Comfort layer. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0029] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, the terms "first," "second," etc. are used only to distinguish the descriptions and are not to be understood as indicating or implying relative importance.

[0030] In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0031] like Figures 1 to 2As shown, a high-temperature resistant, flame-retardant, and thermal insulation fabric comprises a fire extinguishing layer 1, wherein a heat-insulating layer 2, a flame-retardant layer 3, and a combustion protection layer 4 are sequentially arranged on one side of the fire extinguishing layer 1, and a comfort layer 6 is arranged on the other side of the fire extinguishing layer 1. A plurality of storage holes are opened on the side wall of the fire extinguishing layer 1, and a powder cell 5 is arranged in each storage hole. The interior of the powder cell 5 is loaded with a fire extinguishing dry powder for flame retardant fire extinguishing. Specifically, the high-temperature resistant, flame-retardant, and thermal insulation fabric is provided with a fire extinguishing layer 1 and a fire extinguishing dry powder, so that when an accident occurs at the shooting site of a film and television crew, the outer heat-insulating layer 2, the flame-retardant layer 3, and the combustion protection layer 4 are destroyed or burned, resulting in the loss of their fire-retardant and heat-insulating functions. At this time, the fire extinguishing layer 1 will be in direct contact with the high-temperature air and flame, resulting in the decomposition of the fire extinguishing dry powder inside the powder cell 5 due to heat, which can absorb a large amount of heat, quickly cool down the personnel, and reduce the heat radiation to the personnel. The impact of the body can release a large amount of non-combustible gas to dilute the high-temperature air, reduce the content of combustible gas and floating matter, and inhibit the progress of flame combustion. At the same time, the ejection of non-combustible gas can isolate and push away the flame, thereby preventing the fabric from continuing to burn. It provides the last and most reliable insurance measure for the safety of personnel and effectively improves safety protection. The thermal insulation layer 2 and the flame retardant layer 3 have good heat resistance, heat insulation, flame retardancy, self-extinguishing and spinnable properties. In addition to protecting the fabric itself and the human body, it can also play a thermal insulation protection role for the fire extinguishing dry powder, effectively preventing the fire extinguishing dry powder from decomposing in advance, so that the protective effect of the fire extinguishing dry powder can be stably maintained, and it is not easy to be adhered to by the substances produced by combustion. In the event of danger, the external costumes, fuel and the substances produced by the combustion of the fabric itself are difficult to adhere to the flame retardant layer 3, effectively reducing the damage caused by the adhesion of flammable substances.

[0032] The fire extinguishing dry powder mainly includes the following components by weight: sodium bicarbonate accounting for 20%-30%, ammonium dihydrogen phosphate accounting for 35%-40%, ammonium sulfate accounting for 25%-35%, and other powders such as moisture-proof agents accounting for less than 5%. Specifically, when an accident occurs on the set of a film or television crew, the outer thermal insulation layer 2, flame retardant layer 3 and combustion protection layer 4 are destroyed or burned, resulting in the loss of their fire retardant and heat insulation functions. At this time, the fire extinguishing layer 1 will be in direct contact with high-temperature air and flames, causing the fire extinguishing dry powder inside the powder cell 5 to decompose due to heat, resulting in the following reaction:

[0033] 1. The sodium bicarbonate in the fire extinguishing dry powder decomposes under high temperature (2NaHCO3→Na2CO3+H2O+CO2↑), releasing a large amount of carbon dioxide and water. During the reaction, it absorbs heat. At the same time, the water is heated and turns into water vapor, which continues to absorb heat, thereby quickly cooling the surface of the fabric. The large amount of non-flammable carbon dioxide and water vapor released can dilute the combustible gas or floating matter in the air at the scene, thereby suppressing combustion.

[0034] 2. The ammonium dihydrogen phosphate in the fire extinguishing powder decomposes into ammonia and phosphoric acid when heated (NH42HPO4→NH3↑

[0035] +H3PO4);

[0036] 3. The ammonium sulfate in the fire extinguishing dry powder decomposes into ammonia and ammonium sulfate when heated (2NH4HSO4→2NH3↑+H2SO4↑+H2O↑);

[0037] The ammonia and other gases released by the decomposition of ammonium dihydrogen phosphate and ammonium sulfate will react with oxygen in the hot air to produce non-flammable nitrogen and water vapor (4NH3+3O2→2N2+6H2O), further suppressing the combustion of the flame. Ammonia will also react with oxygen to produce nitric oxide and water vapor (4NH3+5O2→4NO+6H2O), and nitric oxide will easily react with oxygen to produce nitrogen dioxide (2NO+O2→2NO2).

[0038] Through the above multiple reactions, a large amount of heat can be absorbed, the temperature of the personnel's body can be quickly cooled down, and the impact of heat radiation on the personnel's body can be reduced. At the same time, a large amount of non-combustible gas can be released to dilute the high-temperature air, reduce the content of combustible gas and floating matter, and inhibit the progress of flame combustion. At the same time, the ejection of non-combustible gas can isolate and push away the flame, thereby preventing the fabric from continuing to burn, providing the last and most reliable insurance measure for the safety of personnel and effectively improving safety protection.

[0039] The fire extinguishing layer 1 and the powder cell 5 are both made of composite PET fibers that have been subjected to a web-laying and needle-punching process, and the inner wall of the powder cell 5 is coated with a PU polyurethane coating. Specifically, the composite PET fibers give the fire extinguishing layer 1 and the powder cell 5 sufficient tensile strength, so that the powder cell 5 can withstand the expansion caused by the gas generated by the slight decomposition of the fire extinguishing dry powder at room temperature. At the same time, the PU polyurethane coating can form a thin film inside the powder cell 5 to wrap the fire extinguishing dry powder. The good air tightness of the PU polyurethane coating prevents the fire extinguishing dry powder from decomposing and overflowing prematurely, thereby ensuring that the fire extinguishing layer 1 can stably take effect at critical moments.

[0040] The composite PET fiber mainly includes the following components by weight: PET polyethylene terephthalate accounting for 70%-80% and PA polyamide accounting for 15%-25%; specifically, polyethylene terephthalate has excellent physical properties, while polyamide can provide sufficient toughness and aging resistance for the composite PET fiber, so that the monofilament structure of the composite PET fiber has good tensile strength and high toughness, meeting the needs of daily storage of fire extinguishing dry powder in powder cell 5, so that it can withstand the expansion caused by the gas generated by the slight decomposition of the fire extinguishing dry powder at room temperature.

[0041] The thermal insulation layer 2 is made of a blend of PPS polyphenylene sulfide fiber and PI polyimide fiber; specifically, both polyphenylene sulfide fiber and polyimide fiber have good heat resistance, heat insulation, flame retardancy, self-extinguishing and spinnable properties, and low thermal conductivity. The thermal insulation layer 2 made of the blend of the two not only protects the fabric itself and the human body, but also can provide thermal insulation protection for the fire extinguishing dry powder, effectively preventing the fire extinguishing dry powder from decomposing prematurely, so that the protective effect of the fire extinguishing dry powder can be stably maintained.

[0042] The flame retardant layer 3 is made of PU polyurethane high-temperature anti-stick fiber through a mesh needle punching process; specifically, the flame retardant layer 2 is made of high-temperature anti-stick cloth made of polyurethane fiber, which itself has excellent fire retardant and heat-insulating properties, and utilizes the smoothness (friction coefficient greater than 0.1) and non-adhesiveness of the surface of the anti-stick cloth to make it difficult for substances produced by combustion to adhere to it. In the event of danger, external costumes, fuel and substances produced by the combustion of the fabric itself are difficult to adhere to the flame retardant layer 3, effectively reducing the damage caused by the adhesion of flammable substances.

[0043] The combustion protection layer 4 is made of asbestos fiber that has been subjected to a mesh-laying and needle-punching process. The interior of the combustion protection layer 4 is a porous structure, and the interior of the combustion protection layer 4 contains combustible materials. Specifically, when shooting a scene where flames are burning around the human body, the combustion of the fuel prepared in advance will simultaneously ignite the costumes and the combustible materials inside the combustion protection layer 4, so that the combustion protection layer 4 can provide a longer combustion process. During the filming process, the burning time can be extended, the burning effect can be stabilized, the shooting effect can be improved, and the shooting difficulty and cost can be reduced.

[0044] The combustible material is rosin powder, which is dissolved in an ethanol reagent to form a mixed solution, and then the mixed solution is brushed on the outer surface of the combustion protection layer 4 multiple times, and then the ethanol reagent is waited for to evaporate so that the combustible material is naturally dried in the shade, so that the rosin powder is retained inside the combustion protection layer 4; Specifically, when preparing the combustible material of the combustion protection layer 4, the rosin powder is fully dissolved in the ethanol reagent in a low-temperature, low-light room with good sealing performance to form a mixed solution, and then a brush or other tool is used to dip the mixed solution and evenly apply it to the high-temperature resistant flame retardant insulation surface. The outer surface of the combustion protection layer 4 of the material is coated with rosin powder and repeatedly coated for more than 5 times to allow the solution to penetrate the combustion protection layer 4, thereby filling the pores of the combustion protection layer 4 with rosin powder. The material is then dried in the shade indoors for more than 6 hours to complete the preparation. The asbestos fiber used in the combustion protection layer 4 can make the combustion protection layer 4 form a fire-resistant cloth, which can withstand multiple burnings, so that the combustion protection layer 4 can be used multiple times to meet the shooting requirements. The inner surface of the combustion protection layer 4 needs to be covered with a layer of polyurethane high-temperature anti-sticking film to prevent the mixed solution from penetrating into the flame retardant layer 3 during coating.

[0045] The comfort layer 6 is made of non-woven fabric made of PET polyethylene terephthalate fiber, and the side of the comfort layer 6 away from the fire extinguishing layer 1 is coated with PTFE: PTFE polytetrafluoroethylene coating; specifically, by using PET fiber and polytetrafluoroethylene coating, the comfort layer 6 can be waterproof and breathable, and has certain oil resistance, anti-fouling, wear resistance, corrosion resistance and other properties. It can also discharge warm moisture in time to keep the inner surface of the comfort layer 6 dry, improve the wearer's feeling, and facilitate the subsequent cleaning of the inner layer of the fabric, which is conducive to multiple use.

[0046] In summary: the high-temperature resistant flame-retardant heat-insulating fabric is provided with a fire-extinguishing layer 1 and a fire-extinguishing dry powder, so that when an accident occurs at the shooting site of a film or television crew, the outer heat-insulating layer 2, the flame-retardant layer 3 and the combustion protection layer 4 are destroyed or burned, resulting in the loss of their fire-retardant and heat-insulating functions. At this time, the fire-extinguishing layer 1 will be in direct contact with the high-temperature air and the flame, causing the fire-extinguishing dry powder inside the powder cell 5 to decompose due to heat, which can absorb a large amount of heat, quickly cool down the personnel around, reduce the impact of heat radiation on the personnel's body, and release a large amount of non-combustible gas to dilute the high-temperature air, reduce the content of combustible gas and floating matter, and suppress the progress of flame combustion. At the same time, with the help of non-combustible gas The spray has the effect of isolating and pushing away the flame, thereby preventing the fabric from continuing to burn, providing the last and most reliable insurance measure for personnel safety, and effectively improving safety protection. The thermal insulation layer 2 and the flame retardant layer 3 have good heat resistance, heat insulation, flame retardancy, self-extinguishing and spinnable properties. In addition to protecting the fabric itself and the human body, they can also provide thermal insulation protection for the fire extinguishing dry powder, effectively preventing the fire extinguishing dry powder from decomposing in advance, so that the protective effect of the fire extinguishing dry powder can be stably maintained, and it is not easy to be adhered to by the substances produced by combustion. In the event of danger, the external costumes, fuel and the substances produced by the combustion of the fabric itself are difficult to adhere to the flame retardant layer 3, effectively reducing the damage caused by the adhesion of flammable substances.

[0047] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A high temperature resistant flame retardant thermal insulation fabric, characterized in that: The invention comprises a fire extinguishing layer (1), wherein a heat insulating layer (2), a flame retardant layer (3) and a combustion protection layer (4) are sequentially arranged on one side of the fire extinguishing layer (1), and a comfort layer (6) is arranged on the other side of the fire extinguishing layer (1). A plurality of storage holes are opened on the side wall of the fire extinguishing layer (1), and powder cells (5) are arranged in each of the storage holes. The powder cells (5) are loaded with fire extinguishing dry powder for flame retardant fire extinguishing. The interior of the combustion protection layer (4) is a porous structure. The interior of the combustion protection layer (4) contains combustible material, which is rosin powder. The rosin powder is dissolved in an ethanol reagent to prepare a mixed solution, and the mixed solution is then applied to the outer surface of the combustion protection layer (4) multiple times. Then, the ethanol reagent is allowed to evaporate and the combustible material is naturally dried in the shade, so that the rosin powder remains in the interior of the combustion protection layer (4).

2. The high temperature resistant flame retardant insulation fabric according to claim 1, characterized in that: The fire extinguishing dry powder mainly includes the following components by weight: sodium bicarbonate accounting for 20%-30%, ammonium dihydrogen phosphate accounting for 35%-40%, ammonium sulfate accounting for 25%-35%, moisture-proof agent accounting for less than 5% and other powders.

3. The high temperature resistant flame retardant insulation fabric according to claim 1, characterized in that: The fire extinguishing layer (1) and the powder material cell (5) are both made of composite PET fibers that have been subjected to a web-laying and needle-punching process, and the inner wall of the powder material cell (5) is coated with a PU (polyurethane) coating.

4. The high temperature resistant flame retardant insulation fabric according to claim 3, characterized in that: The composite PET fiber mainly includes the following components by weight: 70%-80% PET (polyethylene terephthalate) and 15%-25% PA (polyamide).

5. The high temperature resistant flame retardant insulation fabric according to claim 1, characterized in that: The heat insulation layer (2) is made of a blend of PPS (polyphenylene sulfide) fiber and PI (polyimide) fiber.

6. The high temperature resistant flame retardant insulation fabric according to claim 1, characterized in that: The flame retardant layer (3) is made of PU (polyurethane) high-temperature anti-sticking fiber through a web laying and needle punching process.

7. The high temperature resistant flame retardant insulation fabric according to claim 1, characterized in that: The combustion protection layer (4) is made of asbestos fibers that have been subjected to a web-laying and needle-punching process.

8. The high temperature resistant flame retardant insulation fabric according to claim 1, characterized in that: The comfort layer (6) is made of non-woven fabric made of PET (polyethylene terephthalate) fibers, and the side of the comfort layer (6) away from the fire extinguishing layer (1) is coated with PTFE: PTFE (polytetrafluoroethylene) coating.

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