Heat insulation garment and manufacturing method thereof

Abstract

The invention provides a heat insulation garment and a manufacturing method thereof. The heat insulation clothes comprise a head cover, the front portion of the head cover is provided with a face screen, and the rear portion of the head cover is provided with an exhaust valve; the jumpsuit comprises an upper garment and trousers, the jumpsuit is formed by sewing an overall lower piece and conducting adhesive pressing and sealing on sewing needle holes through flame-retardant adhesive tapes, at least one jumpsuit disengaging opening is formed in the front portion of the jumpsuit, and an air breathing knapsack is arranged on the rear portion of the jumpsuit. At least one jumpsuit release opening extends from the hood to the trouser legs of the trousers and is closed through a metal flame-retardant zipper and a flame-retardant hook and loop fastener, and a heat insulation front fly used for covering the metal flame-retardant zipper is arranged outside the metal flame-retardant zipper. Sleeves; and a boot cover. The head cover, the conjoined clothes, the sleeves and the boot covers are combined together through sewing, and all-flame-retardant adhesive tapes are used for carrying out adhesive pressing and sealing on the combined parts. Fabric of the head cover, the conjoined clothes, the sleeves and the boot covers is of a three-layer structure, and the three-layer structure sequentially comprises an outer layer, a heat insulation layer and an inner layer from outside to inside.

Description

Technical Field

[0001] The present invention relates to the technical field of protective clothing, and more particularly to a lightweight heat-insulating clothing with a cooling function and a manufacturing method thereof. Background Art

[0002] Thermal insulation suits are essential in high-temperature steam scenarios, providing workers with a necessary layer of protection to cope with extreme temperatures and potential thermal injuries. These jumpsuits are usually made of fire-resistant insulation materials and are designed to be compact, lightweight, and portable to ensure that they can be quickly put on and provide immediate protection in an emergency. However, domestic thermal insulation suits face some technical challenges and performance limitations in practical applications.

[0003] First, sealing is one of the key properties of thermal insulation clothing. Currently, the seams and zippers of some thermal insulation clothing may not be sealed enough, which may allow high-temperature steam or flames to intrude and reduce the protective effect. Secondly, low softness will affect the wearer's comfort and freedom of movement. Heavy weight is another common problem, which will increase the burden on the wearer and affect his or her mobility and ability to work for a long time. Difficulty in donning is also an important issue, especially in emergency situations, when quick donning is crucial. Unsatisfactory physical and mechanical properties, such as insufficient wear resistance and tear resistance, will also affect the durability and service life of thermal insulation clothing. In addition, the temperature and time that the product can withstand are important reference indicators for users when choosing thermal insulation clothing. Some products on the market currently fail to clearly mark these key information, making it difficult for users to judge whether the product meets national standards or the needs of specific applications. Summary of the invention

[0004] The present invention provides a lightweight heat-insulating clothing with a cooling function, thereby solving the technical problems of existing heat-insulating clothing such as poor sealing, low softness, heavy weight, difficulty in wearing, and unsatisfactory physical and mechanical properties.

[0005] In order to achieve the above technical objectives, the present invention provides the following technical solutions: In the first aspect, the present invention provides a heat-insulating suit, comprising: a hood, a face shield is provided at the front of the hood, and an exhaust valve is provided at the rear of the hood; a jumpsuit, the jumpsuit comprises a top and trousers, the jumpsuit is formed by sewing the entire lower piece and pressing and gluing the sewing pinholes with a flame-retardant adhesive strip, at least one jumpsuit dropout is provided at the front of the jumpsuit, an air breathing backpack is provided at the rear of the jumpsuit, at least one jumpsuit dropout extends from the hood to the trouser legs of the trousers and is closed with a metal flame-retardant zipper and a flame-retardant Velcro, and an heat-insulating door lapel for covering the metal flame-retardant zipper is provided outside the metal flame-retardant zipper; sleeves; and boot covers, wherein the hood, jumpsuit, sleeves and boot covers are combined together by sewing, and the combined parts are pressed and glued with a full flame-retardant adhesive strip; and the fabrics of the hood, jumpsuit, sleeves and boot covers all have a three-layer structure, which are an outer layer, a heat-insulating layer and an inner layer from the outside to the inside.

[0006] In one embodiment, the thermal insulation suit may further include thermal insulation gloves, which may be separate from the thermal insulation suit or may be formed as one piece with the thermal insulation suit.

[0007] In one embodiment, reflective strips may be provided at multiple locations of the thermal insulation suit. Further or alternatively, bags for accommodating ice packs may be provided at multiple locations inside the thermal insulation suit.

[0008] In one embodiment, the outer layer may be a composite cloth, which may include aluminum foil, a PI film, and a base cloth, and the base cloth may be one or more of aramid, flame-retardant polyester, and ultra-high molecular weight polyethylene.

[0009] In one embodiment, the thermal insulation layer may be one or more of PI flakes, cotton flakes, and electrospun PI flakes.

[0010] In one embodiment, the inner layer may be one or more of flame-retardant polyester, aramid, and flame-retardant cotton.

[0011] In one embodiment, the ice pack contained in the bag-like member may be a phase change type ice pack, a non-phase change type ice pack, or both.

[0012] In one embodiment, when the suture needle hole site is pressed and sealed with the flame retardant adhesive strip, the distance between each side of the flame retardant adhesive strip and the suture line in the suture needle hole site may be equal to or greater than 0.5 cm.

[0013] In one embodiment, a foot plate is provided at the bottom of the boot cover, and the foot plate is connected to the boot cover by rivets.

[0014] In a second aspect, the present invention provides a method for manufacturing a heat-insulating suit, comprising: manufacturing a hood, wherein a face screen is provided at the front of the hood and an exhaust valve is provided at the rear of the hood; manufacturing a jumpsuit including a top and pants by sewing the entire lower piece and pressing and gluing the stitching pinholes with a flame-retardant adhesive strip, wherein at least one jumpsuit dropout is provided at the front of the jumpsuit, an air breathing backpack is provided at the rear of the jumpsuit, at least one jumpsuit dropout extends from the hood to the trouser legs of the pants and is closed with a metal flame-retardant zipper and a flame-retardant Velcro, and an heat-insulating door lapel for covering the metal flame-retardant zipper is provided outside the metal flame-retardant zipper; manufacturing sleeves; manufacturing boot covers; combining the hood, jumpsuit, sleeves and boot covers together by sewing, and pressing and gluing the combined parts with a full flame-retardant adhesive strip, wherein the fabrics of the hood, jumpsuit, sleeves and boot covers all have a three-layer structure, and the three-layer structure is an outer layer, a heat-insulating layer and an inner layer from the outside to the inside.

[0015] After testing, the thermal insulation clothing provided by the present invention can withstand 10 minutes in an environment of 100 degrees Celsius and 30 minutes in an environment of 70 degrees Celsius. In addition to the thermal insulation function, the thermal insulation clothing also has multiple characteristics such as resistance to hydrostatic pressure, resistance to bending, resistance to tearing, resistance to wear and flame retardancy, and is an environmentally friendly, non-toxic and harmless protective equipment. Whether in the military field or the civilian market, the thermal insulation clothing provided by the present invention has shown great application potential and broad application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description only show some embodiments of the present invention. For ordinary technicians in this field, other embodiments can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a diagram showing the front side of a heat insulating garment according to an embodiment of the present invention; Figure 2 is a diagram showing the back side of a heat insulating garment according to an embodiment of the present invention; Figure 3 is a diagram showing the inner side of a heat insulating garment according to an embodiment of the present invention; Figure 4 is a schematic diagram showing a three-layer structure used in a main body material of a thermal insulation garment according to an embodiment of the present invention.

[0018] Figure 5 is a flow chart illustrating a method of manufacturing a thermal insulation garment according to an embodiment of the present invention. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. It should be understood that the embodiments described in the drawings are only part of the embodiments of the present invention, not all of the embodiments. In addition, it should be understood that the embodiments shown in the drawings are only used to further illustrate the present invention and cannot be interpreted as limiting the scope of protection of the present invention. Some non-essential changes and adjustments made by technicians in this field based on the above content belong to the scope of protection of the present invention.

[0020] Figure 1 is a diagram showing the front side of a heat insulating garment according to an embodiment of the present invention, Figure 2 : is a diagram showing the back side of the heat insulating clothing according to the embodiment of the present invention.

[0021] Reference Figure 1 and Figure 2 , the heat-insulating suit 100 according to an embodiment of the present invention includes a hood 110, a one-piece suit 120, sleeves 130 and boot covers 140. The hood 110, the one-piece suit 120, the sleeves 130 and the boot covers 140 can be combined together by sewing, and the combined parts can be pressed and sealed with a full flame-retardant rubber strip. Depending on the application and manufacturing cost, a flame-retardant rubber strip can also be used to press and seal the combined parts. When the flame-retardant rubber strip or the full flame-retardant rubber strip is used to press and seal the combined parts, the distance between each side of the flame-retardant rubber strip or the full flame-retardant rubber strip and the stitching line in the combined part can be equal to or greater than 0.5 cm to ensure the sealing and heat insulation of the combined part.

[0022] The front of the hood 110 is provided with a face shield 111, which can be made of heat-resistant glass or special plastics such as polycarbonate (PC) plastic to ensure clear and safe vision. In addition, in some embodiments, the face shield 111 can be a multi-layer composite face shield, including, for example, a heat-resistant layer, a scratch-resistant layer, and a transparent protective layer to provide additional protection and durability. The rear of the hood 110 is provided with a breathing valve 112 to provide breathability and comfort for the wearer. For example, the breathing valve 112 can be set at a position in the mask corresponding to the back of the wearer's head.

[0023] The one-piece suit 120 may include a top 121 and pants 122. The one-piece suit may be formed by sewing the lower piece of the material for manufacturing the one-piece suit as a whole and using a flame-retardant adhesive strip to press-glue the stitching pinholes. Depending on the application and manufacturing cost, a full flame-retardant adhesive strip may also be used to press-glue the stitching pinholes in the one-piece suit. When the flame-retardant adhesive strip or the full flame-retardant adhesive strip is used to press-glue the stitching pinholes, the distance between each side of the flame-retardant adhesive strip or the full flame-retardant adhesive strip and the stitching line in the stitching pinholes is equal to or greater than 0.5 cm to ensure the sealing and heat insulation of the stitching pinholes.

[0024] At least one jumpsuit opening 123 may be provided at the front of the jumpsuit. The at least one jumpsuit opening 123 may extend from the hood 110 to the trouser legs of the pants 122 and be closed by a metal flame-retardant zipper and a flame-retardant hook and loop fastener (not shown). In addition, an insulating door placket (not shown) for covering the metal flame-retardant zipper may be provided outside the metal flame-retardant zipper.

[0025] It should be understood that, as an example, Figure 1 Only one jumpsuit opening 123 is shown in the figure, but the position and number of the jumpsuit openings 123 are not limited by this embodiment. For example, in another embodiment, the jumpsuit opening 123 may extend from the mask 110 to the crotch of the pants 122. For another example, a jumpsuit opening 123 extending from the hood 110 to the two trouser legs of the pants 122 may be provided on each of the left and right sides of the front of the thermal insulation suit.

[0026] The above-mentioned structure of the one-piece suit opening 123 can not only provide the wearer with wearing flexibility, but also ensure the sealing and heat insulation of the one-piece suit opening 123 , thereby ensuring the heat insulation of the entire insulation suit 110 .

[0027] An air breathing backpack 124 may be provided at the rear of the jumpsuit. In addition, a heat-insulating suit mark 125 may be provided at an appropriate position of the jumpsuit (e.g., the right chest position). The heat-insulating suit mark may indicate important reference indicators such as the temperature and time that the heat-insulating suit can withstand, for example, 100 degrees Celsius for 10 minutes, 70 degrees Celsius for 30 minutes, etc. In some embodiments, one or more breathing valves 126 may also be provided in the jumpsuit to further ensure the comfort and breathability of the wearer.

[0028] exist Figure 1 and Figure 2 In the embodiment of the present invention, the sleeve 130 can be a part manufactured separately from the coverall 120, and can be combined with the coverall 120 by sewing technology and flame retardant / full flame retardant sealing tape sealing and laminating technology. However, the present disclosure is not limited thereto, and the sleeve 130 and the coverall 120 can also be manufactured integrally.

[0029] The boot cover 140 may include a sole plate 141 disposed at the bottom thereof. The sole plate 141 may be connected to the boot cover by rivets. However, it should be understood that other connection modes between the sole plate 141 and the boot cover 140 are also possible and fall within the scope of the present invention.

[0030] In some embodiments, the heat insulating suit 100 may further include a heat insulating glove 150, which may be separated from the heat insulating suit 100 or may be formed as one with the heat insulating suit 100. In one embodiment, the heat insulating glove 150 is a separate component and can be worn separately by the user. In another embodiment, the heat insulating glove 150 may be manufactured separately and may be combined with the sleeve 130 by sewing technology and flame retardant / full flame retardant sealing strip gluing and sealing technology. In addition, the heat insulating glove 150 may also be manufactured integrally with the sleeve 130. The heat insulating glove 150 may be a conventional five-finger glove. However, depending on the application and manufacturing cost, the heat insulating glove 150 may also be other types of gloves, such as mittens.

[0031] In some embodiments, a plurality of reflective strips 160 may be provided at a plurality of positions of the thermal insulation suit 100. For example, a reflective strip 160 may be provided at one or more of a plurality of positions of the thermal insulation suit 100 corresponding to the chest, back, hands, legs, etc. of the wearer. By providing the reflective strips 160, the recognition of the thermal insulation suit can be improved when the thermal insulation suit is used at night.

[0032] Figure 3 100 is a diagram showing the inside of a heat insulating suit according to an embodiment of the present invention. In some embodiments, bags 310 capable of accommodating ice packs may be provided at multiple locations inside the heat insulating suit 100 . Figure 3 The embodiment of shows the positions where multiple pockets 310 can be set inside the thermal insulation suit, but the setting position and shape of the pockets 310 are not limited by this embodiment. For example, a bag-like member 310 capable of placing an ice pack can be set at one or more of the multiple positions on the inside of the thermal insulation suit 100 corresponding to the back of the head, back, abdomen, chest, left arm, right arm, left leg and right leg of the wearer. In some embodiments, the ice pack contained in the bag-like member can be a phase change type ice pack or a non-phase change type ice pack, or can be a phase change type ice pack and a non-phase change type ice pack. By setting a bag-like member 310 on the inside of the thermal insulation suit 100 and placing one or more types of ice packs in the bag-like member, the wearer can be effectively cooled down in a high temperature environment, thereby further improving the comfort and safety of the wearer in a high temperature environment.

[0033] In order to further improve the thermal insulation, comfort and lightness of the thermal insulation suit 100, the main body fabric of the thermal insulation suit 100, that is, the fabric of the hood 110, the coverall 120, the sleeves 130 and the boot covers 140, can adopt a three-layer structure. Figure 4 Schematic diagram showing a three-layer structure used in the main body material of the heat insulating clothing according to an embodiment of the present invention. Figure 4 The three-layer structure used in the main material of the thermal insulation suit is an outer layer 410, a thermal insulation layer 420 and an inner layer 430 from the outside to the inside.

[0034] The outer layer 410 may be a high temperature steam proof outer layer. In some embodiments, the outer layer 410 may be a composite fabric, for example, with a unit area mass of 250-350 g / m 2 As an example, the composite cloth may include a three-layer structure, wherein the first layer is an aluminum foil of 10 μm to 20 μm, the second layer is a polyimide (PI) film, and the third layer is a high-strength tear-resistant base cloth. However, this is only an example, and the composite cloth may include more or fewer layers depending on the application site and manufacturing cost. In some embodiments, the high-strength tear-resistant base cloth may be one or more of aramid, flame-retardant polyester, and ultra-high molecular weight polyethylene.

[0035] The heat insulation layer 420 may be one or more of PI flakes, cotton flakes, and electrospun PI flakes. For example, the heat insulation layer may have a unit area mass of 200-300 g / m 2 PI flakes.

[0036] The inner layer 430 may preferably be made of a lightweight material to provide comfort to the wearer. The inner layer may be one or more of flame-retardant polyester, aramid, and flame-retardant cotton. For example, the inner layer may be made of a material with a unit area mass of 80-100 g / m 2 Flame retardant polyester.

[0037] In some embodiments, the fabrics of the heat-insulating gloves 150 and other components of the heat-insulating clothing 100 (for example, the flame-retardant Velcro and the heat-insulating door lapels) may also have reference Figure 4 Describe the three-tier structure.

[0038] Figure 5 is a flow chart illustrating a method of manufacturing a thermal insulation garment according to an embodiment of the present invention.

[0039] The method 500 for manufacturing a heat insulating garment according to an embodiment of the present invention may include manufacturing a reference Figure 1-Figure 3 The hood 110 is shown.

[0040] The method 500 includes, in step S520, making a reference Figure 1-Figure 3 A coverall 120 is shown.

[0041] The method 500 further includes, in step S530, making a reference Figure 1-Figure 3 The sleeves 130 are shown. It should be understood that if the one-piece suit 120 and the sleeves 130 are integrally manufactured using suitable materials, step S520 and step S530 can be combined into one step.

[0042] The method 500 further comprises, in step S540, making a reference Figure 1-Figure 3 The boot 140 is shown.

[0043] The method 500 further includes, in step S550, combining the manufactured hood 110, jumpsuit 120, sleeves 130 and boot covers 140 by sewing them together, and using a full flame retardant adhesive strip to press-glue the joints. Depending on the application and manufacturing cost, a flame retardant adhesive strip may also be used to press-glue the joints. When the full flame retardant adhesive strip or the flame retardant adhesive strip is used to press-glue the joints, the distance between each side of the full flame retardant adhesive strip or the flame retardant adhesive strip and the suture line in the joint is equal to or greater than 0.5 cm to ensure the sealing and heat insulation of the joints.

[0044] The main body fabric of the thermal insulation suit used in method 500, that is, the fabric of the hood, coverall, sleeves and boot covers, can have a three-layer structure. The three-layer structure can be referenced Figure 4 The three-layer structure shown.

[0045] According to the inventive concept of the present invention, the following four embodiments of thermal insulation clothing are provided: Example 1 Reference Figure 1 and Figure 2 The described heat-insulating suit, wherein the hood 110, the jumpsuit 120, the sleeves 130 and the boot covers 140 are combined together by sewing, and the combined parts are pressed and sealed with full flame-retardant adhesive strips. The jumpsuit 120 adopts the overall lower piece sewing technology and uses flame-retardant adhesive strips to press and seal the sewing pinhole parts. The jumpsuit 120 includes a top 121 and pants 122. A jumpsuit release 123 is provided at the front of the jumpsuit. The jumpsuit release 123 extends from the hood 110 to the trouser legs of the pants 122 and is closed with a metal flame-retardant zipper and a flame-retardant Velcro. In addition, an insulating door lapel for covering the metal flame-retardant zipper is provided outside the metal flame-retardant zipper. Reflective strips are provided at multiple positions of the heat-insulating suit corresponding to the wearer's chest, back, hands, and legs. A bag-shaped part capable of placing an ice pack is provided at positions corresponding to the wearer's multiple body parts on the inner side of the thermal insulation suit, and a phase-change ice pack and a non-phase-change ice pack are provided in the bag-shaped part. The main fabric of the thermal insulation suit has a three-layer structure, which is composed of an outer layer (e.g., a high-temperature steam-proof layer), a thermal insulation layer, and an inner layer (e.g., a comfort layer) stacked and sewn from the outside to the inside, wherein the outer layer is composed of 10 μm aluminum foil, PI film, and aramid cloth, the thermal insulation layer is PI flakes, and the inner layer is a lightweight aramid fabric.

[0046] Example 2 The components of the thermal insulation clothing are the same as those of Example 1, except that the outer layer of the three-layer structure of the main fabric is composed of 15 μm aluminum foil, PI film and flame-retardant polyester, the thermal insulation layer is a mixture of PI flakes and electrospun PI flakes, and the inner layer is flame-retardant polyester.

[0047] Example 3 The components of the thermal insulation clothing are the same as those in Example 1, except that the outer layer of the three-layer structure of the main fabric is composed of 20μm aluminum foil, PI film and ultra-high molecular weight polyethylene, the thermal insulation layer is a mixture of flame-retardant cotton wool and PI wool sheets, and the inner layer is flame-retardant cotton.

[0048] Example 4 The components of the thermal insulation suit are the same as those of Example 1, except that the bag-like member is only equipped with a phase change ice bag, and the outer layer of the three-layer structure of the main fabric is composed of 20 μm high aluminum foil, PI film, aramid, flame-retardant polyester and ultra-high molecular weight polyethylene, the thermal insulation layer is composed of flame-retardant cotton wool, PI flakes and electrospun PI flakes, and the inner layer is composed of lightweight aramid fabric, flame-retardant polyester and flame-retardant cotton.

[0049] The above-mentioned thermal insulation clothing embodiments were tested according to GA634-2015, GB / T5455-2014, GA634-2015, GA634-2015, and GB / T3917.3-2009, and the test results are shown in Tables 1 to 3.

[0050] Table 1. Test results of outer layer (steam barrier) materials

[0051] Table 2. Test results of thermal insulation materials

[0052] Table 3. Inner layer (e.g. comfort layer) material test results

[0053] The heat-insulating clothing body manufactured according to the present invention (excluding phase change material accessories, such as ice packs) weighs ≤5 kg, which is relatively light compared to the heat-insulating clothing of the prior art. The time for the temperature rise of the inner surface of the outer layer material to reach 24°C is ≥60 s (anti-radiation heat penetration performance); after the thermal stability test (260°C), the dimensional change rate along the warp and weft directions is not more than 10%, and there is no discoloration, delamination, carbonization, melting and dripping; the breaking strength in the warp and weft directions is ≥800 N; the tearing strength in the warp and weft directions is ≥75N; the damaged length is ≤100 mm, there is no after-flaming, smoldering, melting or dripping (flame retardant performance). After the thermal stability test of the heat-insulating layer material (260°C), the dimensional change rate along the warp and weft directions is not more than 10%, there is no discoloration, delamination, carbonization, melting or dripping; the damaged length is ≤100 mm, there is no after-flaming, smoldering, melting or dripping (flame retardant performance). The breaking strength of the inner layer material in the warp and weft directions is ≥300 N; the damaged length is ≤150 mm, there is no after-flaming, smoldering, melting or dripping (flame retardant performance).

[0054] The test results show that the heat-insulating clothing manufactured according to the present invention has the advantages of good sealing, lightness, softness, excellent resistance to radiation heat penetration and flame retardancy, etc.

[0055] In addition, the manufacturing process technology of the heat-insulating clothing according to the present invention is mature and reliable, easy to mass produce, and can be widely used in emergency repairs and rescue protection in high temperature scenarios.

[0056] In the present invention, the description with reference to the terms "embodiment", "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A thermal insulation suit, comprising: A hood, wherein a face shield is disposed at the front of the hood and an exhaust valve is disposed at the rear of the hood; A one-piece suit, the one-piece suit comprising a top and trousers, the one-piece suit being formed by sewing the entire lower piece and using a flame-retardant adhesive strip to press-glue the stitching pinholes, the front of the one-piece suit being provided with at least one one-piece suit release opening, the rear of the one-piece suit being provided with an air breathing backpack, the at least one one-piece suit release opening extending from the hood to the trouser legs of the trousers and being closed with a metal flame-retardant zipper and a flame-retardant Velcro, and an insulating door lapel for covering the metal flame-retardant zipper being provided outside the metal flame-retardant zipper; sleeve; as well as Boot covers, Features: The hood, the one-piece suit, the sleeves and the boot covers are combined together by sewing, and the combined parts are sealed by gluing with a fully flame-retardant adhesive strip; and The fabrics of the hood, the one-piece suit, the sleeves and the boot covers all have a three-layer structure, which are an outer layer, a heat insulation layer and an inner layer from the outside to the inside.

2. The heat-insulating clothing according to claim 1, characterized in that: It further comprises heat-insulating gloves, which are separated from the heat-insulating clothing or formed as one with the heat-insulating clothing.

3. The heat-insulating clothing according to claim 1, characterized in that: Reflective strips are arranged at multiple positions of the thermal insulation suit and / or bag-shaped members for accommodating ice packs are arranged at multiple positions inside the thermal insulation suit.

4. The heat-insulating clothing according to claim 1, characterized in that: The outer layer is a composite cloth, which includes aluminum foil, PI film and base cloth, and the base cloth is one or more of aramid, flame-retardant polyester and ultra-high molecular weight polyethylene.

5. The heat-insulating clothing according to claim 1, characterized in that: The heat insulation layer is one or more of PI flakes, cotton flakes, and electrostatically spun PI flakes.

6. The heat-insulating clothing according to claim 1, characterized in that: The inner layer is one or more of flame-retardant polyester, aramid, and flame-retardant cotton.

7. The heat-insulating clothing according to claim 3, characterized in that: The ice pack is one or both of a phase change type ice pack and a non-phase change type ice pack.

8. The heat-insulating clothing according to claim 1, characterized in that: When the flame retardant adhesive strip is used to press-glue the suture needle hole site, the distance between each side of the flame retardant adhesive strip and the suture line in the suture needle hole site is equal to or greater than 0.5 cm.

9. The heat-insulating clothing according to claim 1, characterized in that: A foot plate is arranged at the bottom of the boot cover, and the foot plate is connected to the boot cover through rivets.

10. A method for manufacturing a thermal insulation garment, comprising: Manufacturing a hood, wherein a face shield is disposed at the front of the hood and an exhaust valve is disposed at the rear of the hood; A one-piece suit including a top and pants is manufactured by sewing the entire lower piece and using a flame-retardant adhesive strip to press-glue the stitching pinholes, the front of the one-piece suit is provided with at least one one-piece suit release opening, the rear of the one-piece suit is provided with an air breathing backpack, the at least one one-piece suit release opening extends from the hood to the trouser legs of the pants and is closed with a metal flame-retardant zipper and a flame-retardant Velcro, and an insulating door placket for covering the metal flame-retardant zipper is provided outside the metal flame-retardant zipper; Make sleeves; manufacturing boot covers; The hood, the one-piece suit, the sleeves and the boot covers are combined together by sewing, and the combined parts are pressed and sealed with full flame-retardant adhesive strips. It is characterized in that The fabrics of the hood, the one-piece suit, the sleeves and the boot covers all have a three-layer structure, and the three-layer structure comprises an outer layer, a heat insulating layer and an inner layer from the outside to the inside.

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