Thermal physiological comfort firefighter uniform

Abstract

The invention relates to the technical field of functional garments, and discloses a thermal physiological comfort firefighter uniform which comprises a firefighter uniform body and a pair of firefighter trousers, a functional vest is arranged in the firefighter uniform body, a plurality of insertion blocks are fixedly connected to the outer wall of the functional vest, and a plurality of fixing blocks are fixedly connected to the interior of the firefighter uniform body. The outer walls of the inserting blocks are slidably connected to the interiors of the fixing blocks, balls are slidably connected to the outer walls of the inserting blocks, the outer walls of the balls are slidably connected to the interiors of the fixing blocks, springs are fixedly connected to the outer walls of the balls, and an adjusting assembly is arranged in the fire-fighting clothes. By selecting a proper functional vest, inserting blocks are inserted into fixing blocks, balls are extruded in the process, springs are extruded by the balls, the balls are clamped into the inserting blocks, then the inserting blocks are limited and fixed through springback of the springs, combination with the fire-fighting clothes is completed, and the purposes that equipment can be rapidly adjusted according to specific task requirements, and the practicability is high are achieved. Therefore, the effect of better adapting to various complex environments is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of functional clothing, and specifically to a fire-fighting suit with thermal physiological comfort. Background Art

[0002] A fire-fighting suit is a special protective clothing worn by firefighters when performing tasks such as fire extinguishing and rescue. It is mainly used to protect firefighters from harmful factors such as flames, high temperatures, smoke, harmful chemicals, and physical impacts. In a high-temperature environment, firefighters are prone to sweating. If the sweat cannot be discharged in time, it will cause the skin to be wet and stuffy, increasing the risk of heat stress. Therefore, a fire-fighting suit with thermal physiological comfort is used.

[0003] A fire-fighting suit with thermal physiological comfort is a fire-fighting suit that, on the basis of traditional fire-fighting suits, particularly focuses on improving the thermal physiological comfort of firefighters in high-temperature environments. This fire-fighting suit can effectively regulate the internal temperature and humidity through the adoption of advanced materials and designs, reduce the heat stress of firefighters, and improve their work efficiency and safety. In the existing fire-fighting suit technology, fire-fighting suits often have an integrated design. When facing different task requirements, the selection of the functions of the fire-fighting suit is relatively single, making it difficult to provide the best protection for firefighters. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a fire-fighting suit with thermal physiological comfort, which solves the problem that fire-fighting suits often have an integrated design, and when facing different task requirements, the selection of the functions of the fire-fighting suit is relatively single, making it difficult to provide the best protection for firefighters.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A fire-fighting suit with thermal physiological comfort includes a fire-fighting jacket and fire-fighting pants. A functional vest is arranged inside the fire-fighting jacket. A plurality of insertion blocks are fixedly connected to the outer wall of the functional vest. A plurality of fixing blocks are fixedly connected inside the fire-fighting jacket. The outer wall of the insertion block is slidably connected inside the fixing block. A ball is slidably connected to the outer wall of the insertion block. The outer wall of the ball is slidably connected inside the fixing block. A spring is fixedly connected to the outer wall of the ball. The outer wall of the spring is fixedly connected inside the fixing block. An adjustment assembly is arranged inside the fire-fighting jacket.

[0006] By adopting the above technical solutions, by selecting a suitable functional vest and inserting the insertion block into the fixing block, the ball will be squeezed during the insertion process, causing the ball to slide inside the fixing block. At the same time, the spring will also be squeezed due to the sliding of the ball. The installation and use of the fire-fighting jacket and the functional vest can be completed by the ball being stuck into the insertion block. When replacement is needed, simply pull the functional vest in the reverse direction to remove it from the fire-fighting jacket, which is convenient for replacement and use.

[0007] Preferably, the adjusting component includes a lapel, the outer wall of the lapel is fixedly connected to the inside of the fire-fighting suit, an adjusting ring is arranged on the outer wall of the lapel, a collar protector is arranged on the outer wall of the adjusting ring, and the fire-fighting suit and the collar protector are integrally designed.

[0008] Preferably, an adjusting loop is arranged on the outer wall of the fire-fighting suit, cuffs are fixedly connected to the inside of the fire-fighting suit, a plurality of tool pockets are arranged on the outer wall of the fire-fighting suit, and a plurality of reflective bands are arranged on the outer wall of the fire-fighting suit.

[0009] Preferably, the fire-fighting suit and the fire-fighting pants are composed of five layers, which are, from the outside to the inside, a flame-retardant layer, a waterproof and breathable layer, a heat-insulating layer, a phase-change material layer and a comfort layer.

[0010] Preferably, the flame-retardant layer is mainly made of meta-aramid material, and is simultaneously compounded with polybenzimidazole (PBI) high-strength fabric and a flame-retardant adhesive composite film. Among them, the meta-aramid material accounts for 60% - 70%, the polybenzimidazole (PBI) high-strength fabric accounts for 20% - 30%, and the flame-retardant composite film accounts for 5% - 10%.

[0011] Preferably, the waterproof and breathable layer is made of a waterproof and breathable PTFE membrane and a flame-retardant base fabric material (aramid non-woven fabric), and is compounded through a polyurethane and a flame-retardant polyurethane (PU) coating. Among them: the waterproof and breathable PTFE membrane and the flame-retardant base fabric material (aramid non-woven fabric) account for 50% - 60%, the polyurethane accounts for 30% - 40%, and the flame-retardant polyurethane (PU) coating accounts for 5% - 10%.

[0012] Preferably, the heat-insulating layer is made of aramid fiber felt material, and is compounded with an aluminized polyimide film and a flame-retardant treated fiberglass grid cloth. Among them, the aramid fiber felt material accounts for 50% - 65%, the aluminized polyimide film accounts for 20% - 30%, and the flame-retardant treated fiberglass grid cloth accounts for 15% - 25%.

[0013] Preferably, the phase-change material layer uses a paraffin organic phase-change material, and is composed of polyurea, aramid non-woven fabric and a flame-retardant hot-melt adhesive. Among them: the paraffin organic phase-change material accounts for 60% - 70%, the polyurea accounts for 20% - 30%, the aramid non-woven fabric accounts for 5% - 10%, and the flame-retardant hot-melt adhesive accounts for 1% - 5%.

[0014] Preferably, the comfort layer is mainly made of cotton fiber, and blended yarns and core-spun yarns are developed using polyester, spandex fiber, etc. Among them, the cotton fiber accounts for 60% - 80%, the spandex fiber accounts for 3% - 5%, and the rest are polyester and a certain proportion of modified polyester.

[0015] A method for using a thermophysiological comfort fire-fighting suit, the method comprising the following steps:

[0016] S1. Select a suitable functional vest according to different task requirements;

[0017] S2. Insert the insertion block into the fixed block, and use the spring to push the ball to limit and fix the insertion block, thus completing the fixation of the fireproof suit and the functional vest.

[0018] S3. The tightness can be adjusted according to different body types through the adjustment ring and the adjustment loop.

[0019] S4. After adjustment, the fireproof suit and the fireproof trousers can be worn and used.

[0020] Working principle: When the fireproof suit needs to be used, functional vests with different functions can be selected for use according to different task requirements. When the functional vest needs to be used, the fireproof suit and the functional vest can be combined by unzipping the zipper set inside the front placket. Since there are multiple insertion blocks on the outer wall of the functional vest, align the insertion blocks with the fixed blocks. When the insertion blocks are inserted into the inside of the fixed blocks, the balls will be squeezed, causing the balls to slide inside the fixed blocks. When the balls slide, the springs will be squeezed at the same time. There are card slots inside the insertion blocks that can engage with the balls. When the balls slide into the position of the card slots, they will be stuck on the inner wall of the insertion blocks. At this time, the springs are no longer squeezed. The springs can push the balls in the reverse direction to lock and fix the insertion blocks by their rebound. By fixing the insertion blocks, the combined use of the fireproof suit and the functional vest can be completed, achieving the effect of facilitating the rapid adjustment of equipment according to specific task requirements, so as to better adapt to various complex environments;

[0021] The fireproof suit and the fireproof trousers are made of the same material. The outermost layer of the whole is the flame retardant layer. With its good flame retardancy, it can remain stable in complex environments and at the same time provide a good mechanical strength foundation. The waterproof and breathable layer outside the flame retardant layer can effectively prevent external moisture from penetrating and allow internal water vapor to escape through its good waterproof and breathable properties, high temperature resistance and chemical corrosion resistance, keeping the inside of the fireproof suit and the fireproof trousers dry and comfortable. Secondly, the heat insulation layer outside the waterproof and breathable layer, made of high-performance heat insulation materials, can enhance the heat insulation performance and thermal stability. The phase change material layer outside the heat insulation layer can improve the heat regulation performance and stability. The comfort layer is the innermost layer of the fireproof suit. With its good hygroscopicity and breathability, it can ensure that the fireproof suit remains dry and comfortable even during long-term missions. Through the synergistic effect of each layer, the effect of improving the thermal protection performance and comfort while enhancing the safety and adaptability is achieved, providing better protection and comfortable experience for firefighters;

[0022] Through the design of the adjustment ring and the collar, firefighters with different body types can adjust themselves to the best wearing state. The collar can provide additional protection for the necks of firefighters. The fire scene is often filled with thick smoke and dust and the visibility is extremely low. The multiple reflective bands designed can reflect weak light, helping other firefighters or rescue personnel quickly identify the position of the firefighters and improving the visibility and safety of the firefighters.

[0023] The present invention provides a fire-fighting suit with thermal physiological comfort. It has the following beneficial effects:

[0024] 1. By selecting a suitable functional vest, the insertion block is inserted into the interior of the fixing block. During this process, the ball is squeezed, and the ball squeezes the spring. After the ball is stuck into the insertion block, the spring rebounds to limit and fix the insertion block, completing the combination with the fire-fighting suit, achieving the effect of facilitating quick adjustment of equipment according to specific task requirements, so as to better adapt to various complex environments.

[0025] 2. Through the synergistic effect among the flame-retardant layer, waterproof and breathable layer, heat-insulating layer, phase-change material layer and comfort layer, the present invention achieves the effects of improving thermal protection performance and comfort while enhancing safety and adaptability, providing better protection and comfortable experience for firefighters. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional view of the present invention;

[0027] Figure 2 is a schematic diagram of the partial structure of the functional vest of the present invention;

[0028] Figure 3 is a schematic cross-sectional view of the internal structure of the fire-fighting suit of the present invention;

[0029] Figure 4 is a schematic diagram of the partial structure of the collar protector of the present invention;

[0030] Figure 5 is a schematic cross-sectional view of the internal structure of the fixing block of the present invention;

[0031] Figure 6 is a schematic diagram of the partial structure of the flame-retardant layer of the present invention;

[0032] Figure 7 is a schematic flow chart of the present invention.

[0033] Wherein, 1. Fire-fighting suit; 2. Functional vest; 3. Insertion block; 4. Fixing block; 5. Ball; 6. Spring; 7. Front of the garment; 8. Adjusting ring; 9. Collar protector; 10. Adjusting loop; 11. Cuff; 12. Tool pocket; 13. Reflective tape; 14. Fire-fighting trousers; 15. Flame-retardant layer; 16. Waterproof and breathable layer; 17. Heat-insulating layer; 18. Phase-change material layer; 19. Comfort layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0035] Please refer to the appendix Figure 1 - Appendix Figure 5 In an embodiment of the present invention, a thermophysiological comfort fire-fighting suit is provided, which includes a fire-fighting jacket 1 and fire-fighting trousers 14. A functional vest 2 is arranged inside the fire-fighting jacket 1. A plurality of insertion blocks 3 are fixedly connected to the outer wall of the functional vest 2. A plurality of fixing blocks 4 are fixedly connected inside the fire-fighting jacket 1. The outer wall of the insertion block 3 is slidably connected inside the fixing block 4. A ball 5 is slidably connected to the outer wall of the insertion block 3. The outer wall of the ball 5 is slidably connected inside the fixing block 4. A spring 6 is fixedly connected to the outer wall of the ball 5. The outer wall of the spring 6 is fixedly connected inside the fixing block 4. An adjusting assembly is arranged inside the fire-fighting jacket 1;

[0036] Specifically, by selecting different types of functional vests 2, different task requirements can be adapted, and the applicable range is wider. The functional vest 2 plays a role in fixing the insertion block 3. The fire-fighting jacket 1 and the functional vest 2 can be combined and used by inserting the insertion block 3. The fire-fighting jacket 1 plays a role in fixing the fixing block 4. By inserting a plurality of insertion blocks 3 into the fixing block 4, the insertion block 3 will contact the ball 5 and generate a squeezing force on it during the insertion process, so that the ball 5 stably slides inside the insertion block 3. The spring 6 is arranged between the ball 5 and the fixing block 4, and the spring 6 will be squeezed due to the sliding of the ball 5. At the same time, the spring 6 plays a role of rebounding. When no longer being pressed, it will push the ball 5 to snap into the insertion block 3 in the reverse direction through its own rebound to limit and fix the insertion block 3. Since the two sides of the insertion block 3 are provided with card slots that can be engaged with the ball 5, the combination and use of the fire-fighting jacket 1 and the functional vest 2 can be completed by the engagement of the two-sided balls 5, so as to adapt to different task requirements.

[0037] Please refer to the appendix Figure 1 As shown, the adjusting assembly includes a placket 7. The outer wall of the placket 7 is fixedly connected inside the fire-fighting jacket 1. An adjusting ring 8 is arranged on the outer wall of the placket 7. A collar protector 9 is arranged on the outer wall of the adjusting ring 8. The fire-fighting jacket 1 and the collar protector 9 are integrally designed;

[0038] Specifically, a zipper is arranged on the inner side of the placket 7, and the fire-fighting jacket 1 can be easily put on and taken off by pulling the zipper. The width of the collar protector 9 can be flexibly adjusted through the adjusting ring 8, and the fitting effect with the neck of the fire-fighter is better. The collar protector 9 can provide protection for the neck of the fire-fighter.

[0039] Please refer to the appendix Figure 1 As shown, an adjusting loop 10 is arranged on the outer wall of the fire-fighting jacket 1. A cuffs 11 is fixedly connected inside the fire-fighting jacket 1. A plurality of tool pockets 12 are arranged on the outer wall of the fire-fighting jacket 1. A plurality of reflective strips 13 are arranged on the outer wall of the fire-fighting jacket 1;

[0040] Specifically, by adjusting the loop 10, the size of the position of the cuff 11 can be flexibly adjusted to fit the firefighter's arm more closely. Through the design of the elastic band of the cuff 11, it can be adjusted adaptively. Through the tool pocket 12, it is convenient to place and take rescue tools. Reflective bands 13 are provided on both the fire suit 1 and the fire pants 14, which can improve visibility in low-light environments and facilitate rescue work.

[0041] Please refer to the appendix Figure 6 , the fire suit 1 and the fire pants 14 are composed of five layers, which are, from the outside to the inside, a flame-retardant layer 15, a waterproof and breathable layer 16, a heat-insulating layer 17, a phase-change material layer 18, and a comfort layer 19;

[0042] Specifically, the flame-retardant layer 15 serves as the protection foundation of the entire fire suit. The waterproof and breathable layer 16 enhances the breathable and waterproof performance of the fire suit 1 and the fire pants 14. At the same time, the heat-insulating layer 17 can effectively isolate the external heat and avoid affecting the firefighters. Secondly, the phase-change material layer 18 can improve the thermal physiological comfort and thermal protection performance of the fire suit. Finally, the design of the comfort layer 19 can effectively improve the comfort of the fire suit during the wearing and use process.

[0043] Please refer to the appendix Figure 6 , the flame-retardant layer 15 mainly uses meta-aramid materials and is compounded with polybenzimidazole (PBI) high-strength fabric and a flame-retardant adhesive composite film. Among them, the meta-aramid material accounts for 60% - 70%, the polybenzimidazole (PBI) high-strength fabric accounts for 20% - 30%, and the flame-retardant composite film accounts for 5% - 10%;

[0044] Specifically, the high-temperature resistance and flame retardancy of the meta-aramid material form a heat-insulating barrier, delaying the penetration of the flame and being able to effectively block external flames and heat radiation, protecting the firefighters from direct flame damage and providing physical protection. The polybenzimidazole (PBI) fiber has both high strength, flame retardancy, and excellent chemical resistance, which can enhance the tear resistance and abrasion resistance and resist the impact of external sharp objects. At the same time, the flame-retardant adhesive composite film can enhance the interlayer adhesion, and some also have a waterproof pretreatment function. The relatively high proportion (60% - 70%) of the meta-aramid material can ensure the stability and reliability of the flame-retardant layer 15 in high-temperature environments. Tris-(2-chloroethyl) phosphate TCEP and phenolic antioxidant BHT can be selectively added to improve the overall performance of the flame-retardant layer 15.

[0045] Please refer to the appendix Figure 6 , the waterproof and breathable layer 16 is made of a waterproof and breathable PTFE membrane and a flame-retardant base fabric material (aramid non-woven fabric), and is compounded with polyurethane and a flame-retardant polyurethane (PU) coating. Among them: the waterproof and breathable PTFE membrane and the flame-retardant base fabric material (aramid non-woven fabric) account for 50% - 60%, polyurethane accounts for 30% - 40%, and the flame-retardant polyurethane (PU) coating accounts for 5% - 10%;

[0046] Specifically, the waterproof and breathable PTFE membrane and the flame-retardant base fabric material (aramid non-woven fabric) can effectively prevent external moisture from penetrating while allowing internal water vapor to escape. The waterproof and breathable PTFE membrane and the flame-retardant base fabric material (aramid non-woven fabric) have a microporous structure with pore diameters smaller than water droplets but larger than water vapor molecules, thus achieving the function of waterproof and breathability and keeping the inside of the fire-fighting suit dry and comfortable. Polyurethane can prevent oil adsorption, improve washability and waterproof and breathable performance. The ratio of the waterproof and breathable PTFE membrane and the flame-retardant base fabric material (aramid non-woven fabric) (50% - 80%) can ensure the performance of the waterproof and breathable layer in complex environments, providing sufficient flame-retardant protection while maintaining the waterproof and breathable performance. The ratio of polyurethane (10% - 30%) can provide sufficient performance improvement without significantly increasing the weight. The ratio of the flame-retardant polyurethane (PU) coating (5% - 10%) can prevent delamination and enhance durability by bonding with the inner thermal insulation material.

[0047] Please refer to the appendix Figure 6 , the thermal insulation layer 17 is made of aramid fiber felt material and is composed of a composite of aluminized polyimide film and flame-retardant treated fiberglass grid cloth. Among them, the aramid fiber felt material is 50% - 65%, the aluminized polyimide film is 20% - 30%, and the flame-retardant treated fiberglass grid cloth is 15% - 25%;

[0048] Specifically, the aramid fiber felt material isolates high-temperature conduction through a low thermal conductivity (usually ≤0.04W / m·K), can withstand short-term high temperatures above 400°C, can block heat conduction, and protect firefighters from the harm of high-temperature environments. The aluminized polyimide film alumina can reflect more than 90% of the radiant heat and quickly reduce the surface temperature, thus improving the thermal stability and heat insulation performance of the thermal insulation layer 17. The flame-retardant treated fiberglass grid cloth can prevent the collapse of the thermal insulation material, disperse stress and enhance the compression resistance, and can be selected to add silicon carbide fibers, silica aerogel and alumina according to different needs, thereby providing sufficient fire protection.

[0049] Please refer to the appendix Figure 6 , the phase change material layer 18 uses paraffin organic phase change material and is composed of a composite of polyurea, aramid non-woven fabric and flame-retardant hot melt adhesive. Among them: paraffin organic phase change material is 60% - 70%, polyurea is 20% - 30%, aramid non-woven fabric is 5% - 10%, and flame-retardant hot melt adhesive is 1% - 5%;

[0050] Specifically, the paraffin organic phase change material undergoes a phase change process. By absorbing and releasing heat, it regulates the temperature inside the fire-fighting suit. When the ambient temperature rises, the phase change material absorbs heat and melts. When the temperature drops, the phase change material releases heat and solidifies, thereby maintaining the relative stability of the temperature inside the fire-fighting suit and improving the thermal physiological comfort. Paraffin can undergo reversible phase changes between the solid and liquid states. During the phase change process, paraffin can absorb or release a large amount of latent heat, thus achieving temperature regulation. Polyurea can prevent the materials inside the layer from failing due to extrusion. The flame-retardant hot-melt adhesive bonds to the adjacent heat-insulating layer 17 and comfort layer 19 to avoid delamination. Through the cooperation of various materials, it can effectively regulate the temperature in a complex environment, improve the thermal physiological comfort and thermal protection performance of the fire-fighting suit. The paraffin organic phase change material can ensure the temperature regulation performance of the phase change material layer in a high-temperature environment. Polyurea can provide sufficient encapsulation effect without significantly increasing the weight.

[0051] Please refer to the appendix Figure 6 , the comfort layer 19 is mainly made of cotton fiber, and blended yarns and core-spun yarns are developed using polyester, spandex fibers, etc. Among them, cotton fiber accounts for 60% - 80%, spandex fiber accounts for 3% - 5%, and the rest are polyester and a certain proportion of modified polyester;

[0052] Specifically, polyester fiber has good durability. Spandex material has excellent elasticity, which can ensure the comfort of the fire-fighting suit and at the same time maintain a certain moisture absorption and sweat wicking performance. Silver ion antibacterial agent can prevent bacteria from growing, reduce odors, and improve the hygienic performance. By adding polyethylene glycol, the moisture absorption and sweat wicking performance can be enhanced, keeping the skin dry. Silicone oil softener can improve the softness and comfort of the fabric. Polyoxyethylene ether can reduce static electricity accumulation, improve the wearing comfort and safety. Nano-silica heat-resistant agent can improve the heat resistance of the comfort layer 19 and prevent deformation or damage in a high-temperature environment. Through the combined action of each component, it can quickly absorb and discharge the sweat produced by the human body, reduce the damp feeling of the skin, and improve the wearing comfort. The proportion of cotton fiber (60% - 80%) can ensure the comfort of the comfort layer 19 in a high-humidity environment. Spandex (3% - 5%) and polyester (15% - 37%) can maintain comfort while providing sufficient elasticity and durability. Silver ion antibacterial agent can provide sufficient antibacterial effect without significantly increasing the cost. Polyethylene glycol can provide sufficient moisture absorption and sweat wicking effect without significantly increasing the cost. Silicone oil softener can provide sufficient softening effect without significantly increasing the cost. Polyoxyethylene ether can provide sufficient moisture absorption and sweat wicking effect without significantly increasing the cost. Nano-silica heat-resistant agent can provide sufficient heat resistance effect without significantly increasing the weight.

[0053] Please refer to the appendix Figure 7 , A method for using a fire-fighting suit with thermal physiological comfort, the method comprising the following steps:

[0054] S1. Select a suitable functional vest 2 according to different task requirements;

[0055] S2. Insert the insertion block 3 into the fixing block 4, and use the spring 6 to push the ball 5 to limit and fix the insertion block 3, completing the fixation of the fireproof suit 1 and the functional vest 2;

[0056] S3. The tightness can be adjusted according to different body types through the adjusting ring 8 and the adjusting loop 10;

[0057] S4. After adjustment, the fireproof suit 1 and the fireproof pants 14 can be worn and used;

[0058] Specifically, first select a suitable functional vest 2 according to different task requirements, and then use the functional vest 2 and the fireproof suit 1 in combination. Multiple insertion blocks 3 are inserted into the fixing block 4, and through the contact extrusion of the ball 5, it slides inside the fixing block 4 and squeezes the spring 6. The ball 5 is clamped into the insertion block 3 and clamped tightly through the rebound of the spring 6 to complete the combination. Adjust the fireproof suit 1 to the best wearing state through the adjusting ring 8 and the adjusting loop 10. After wearing the fireproof suit 1 and the fireproof pants 14 completely, they can be used in the task.

[0059] Example 1:

[0060] I. Raw material formula of the flame retardant layer 15:

[0061] Meta-aramid material 70%, polybenzimidazole (PBI) fiber 25%, flame retardant composite film 5%.

[0062] Preparation method:

[0063] Fiber preparation: Select meta-aramid material and polybenzimidazole (PBI) fiber for drying and cleaning pretreatment.

[0064] Yarn preparation: Open and mix the meta-aramid material and polybenzimidazole (PBI) fiber, and prepare a blended yarn through the spinning process.

[0065] Weaving: Prepare meta-aramid material and polybenzimidazole (PBI) flame retardant fabric through different fabric structure designs, and carbon fiber can be appropriately added to it.

[0066] Dyeing and post-treatment: Dye the prepared fabric, and compound it with the flame retardant composite film. After washing at 50 - 70 °C and drying at 120 - 180 °C, a flame retardant layer fabric with flame retardant performance is obtained.

[0067] Performance test data: According to the ASTM D6413 standard test, the char length is 99 mm, the afterflame time is 1.5 s, and there is no easy melting or dripping phenomenon. According to the ASTM D737 standard test, the air permeability is about 90 L / m 2·s, the flame retardancy meets the ASTM D6413 standard, and the air permeability meets the ASTM D737 standard.

[0068] II. Raw material formula of the waterproof and breathable layer 16:

[0069] Waterproof and breathable PTFE membrane and flame retardant base fabric material (aramid non-woven fabric) 60%, polyurethane 35%, flame retardant polyurethane (PU) coating 5%.

[0070] Preparation method:

[0071] Material preparation: Select a waterproof and breathable PTFE membrane and aramid non-woven fabric, and prepare polyurethane and flame retardant polyurethane (PU) coatings.

[0072] Lamination and coating: Laminate the waterproof and breathable PTFE membrane and aramid non-woven fabric to form a composite material, coat polyurethane on the surface of the composite material to form a waterproof and breathable coating, and further coat a flame retardant polyurethane (PU) coating to improve the flame retardancy.

[0073] Post-treatment: Wash at 50 - 70 °C and dry at 120 - 180 °C to obtain the waterproof and breathable layer 16.

[0074] Performance test data: Tested according to the ASTM 127 standard, the waterproof performance reaches above 1000 mmH2O, and the air permeability is about 180 L / m 2 ·s, and the waterproof performance meets the ASTM 127 standard.

[0075] III. Raw material formula of the heat insulation layer 17:

[0076] Aramid fiber felt material 60%, aluminized polyimide film 25%, flame retardant treated fiberglass mesh cloth 15%.

[0077] Preparation method:

[0078] Material preparation: Select aramid fiber felt material as the base material, and prepare aluminized polyimide film and flame retardant treated fiberglass mesh cloth.

[0079] Mixing and lamination: Laminate aramid fiber felt material, aluminized polyimide film and flame retardant treated fiberglass mesh cloth to form the heat insulation layer.

[0080] Post-treatment: Dry at 120 - 180 °C to obtain the heat insulation layer 17.

[0081] Performance test data: Tested according to the NFPA 1971 standard, the thermal protection performance (TPP) value is 27 cal / cm 2 , and the air permeability is about 45 L / m 2 ·s, and the thermal protection performance meets the NFPA 1971 standard.

[0082] IV. Raw material formula of the phase change material layer 18:

[0083] Paraffin organic phase change material: 70%, polyurea: 20%, aramid non-woven fabric: 8%, flame-retardant hot melt adhesive: 2%.

[0084] Preparation method:

[0085] Material preparation: Select paraffin organic phase change material, and prepare polyurea, aramid non-woven fabric and flame-retardant hot melt adhesive.

[0086] Microencapsulation: Mix the paraffin organic phase change material with polyurea to form microcapsules. The distribution of microcapsules can be fixed through the aramid non-woven fabric to improve the stability and thermal regulation performance of the phase change material.

[0087] Post-treatment: Wash with water at 50 - 70°C and dry at 120 - 180°C to obtain the phase change material layer 18.

[0088] Performance test data: Tested according to the ASTM F2371—2010 standard, the phase change temperature is 28°C, the latent heat of phase change is about 180 J / g. In a 35°C environment, when firefighters wear the fire-fighting suit with the phase change material layer, the body temperature of firefighters remains relatively stable within 200 minutes, and the temperature difference between the inner and outer layers can reach 6.6°C. The phase change performance meets the ASTM F2371—2010 standard.

[0089] V. Raw material formula of the comfort layer 19:

[0090] Cotton fiber: 80%, spandex fiber: 5%, polyester: 15%.

[0091] Preparation method:

[0092] Material preparation: Select cotton fiber as the main base material, and prepare polyester and spandex fiber.

[0093] Spinning and finishing: Blend cotton fiber with polyester fiber and spandex fiber through the blending and core-spun processes to produce corresponding yarns, and conduct functional finishing by adding silver ion antibacterial agent and nano-silica heat-resistant agent.

[0094] Weaving and post-treatment: Weave the fibers into the comfort layer fabric, wash with water at 50 - 70°C and dry at 120 - 180°C to obtain the comfort layer 19.

[0095] Performance test data: Tested according to the ASTM D737 standard, the air permeability is about 220 L / m 2 ·s. Tested according to the AATCC 195 standard, the liquid water transfer level ≥ Level 3, the evaporation rate ≥ 0.25 g / h. The air permeability meets the ASTM D737 standard, and the moisture absorption and sweat discharge performance meets the AATCC 195 standard.

[0096] Assembled fire-fighting suit:

[0097] Use a high-temperature resistant and flame-retardant adhesive to bond the layers together in sequence. According to the design requirements of the fire-fighting suit, cut and sew it, and conduct strict quality inspections on the finished fire-fighting suit, including flame retardancy, waterproof and breathable performance, heat insulation performance, phase change performance, and comfort, etc., to ensure that the fire-fighting suit meets the relevant standards and specifications.

[0098] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A thermal physiological comfort fire-fighting suit, comprising a fire-fighting coat (1) and fire-fighting trousers (14), characterized in that: Inside the fireproof suit (1), there is a functional vest (2). On the outer wall of the functional vest (2), there are multiple insertion blocks (3) fixedly connected. Inside the fireproof suit (1), there are multiple fixing blocks (4) fixedly connected. The outer wall of the insertion block (3) is slidably connected inside the fixing block (4). On the outer wall of the insertion block (3), there is a rolling ball (5) slidably connected. The outer wall of the rolling ball (5) is slidably connected inside the fixing block (4). On the outer wall of the rolling ball (5), there is a spring (6) fixedly connected. The outer wall of the spring (6) is fixedly connected inside the fixing block (4). Inside the fireproof suit (1), there is an adjusting assembly.

2. The thermophysiological comfort firefighting suit according to claim 1, characterized in that: The adjusting assembly includes a front piece (7). The outer wall of the front piece (7) is fixedly connected inside the fireproof suit (1). On the outer wall of the front piece (7), there is an adjusting ring (8). On the outer wall of the adjusting ring (8), there is a collar guard (9). The fireproof suit (1) and the collar guard (9) are integrally designed.

3. The thermophysiological comfort fire-fighting suit according to claim 1, characterized in that: On the outer wall of the fireproof suit (1), there is an adjusting loop (10). Inside the fireproof suit (1), there is a cuff (11) fixedly connected. On the outer wall of the fireproof suit (1), there are multiple tool pockets (12). On the outer wall of the fireproof suit (1), there are multiple reflective strips (13).

4. The thermophysiological comfort fire-fighting suit according to claim 1, characterized in that: The fireproof suit (1) and the fireproof pants (14) are composed of five layers, which are, from the outside to the inside in sequence, a flame retardant layer (15), a waterproof and breathable layer (16), a heat insulation layer (17), a phase change material layer (18), and a comfort layer (19).

5. The thermophysiological comfort firefighting suit according to claim 4, characterized in that: The flame retardant layer (15) mainly uses meta-aramid material, and is simultaneously compounded with polybenzimidazole (PBI) high-strength fabric and a flame retardant composite film. Among them, the meta-aramid material accounts for 60% - 70%, the polybenzimidazole (PBI) high-strength fabric accounts for 20% - 30%, and the flame retardant composite film accounts for 5% - 10%.

6. The thermophysiological comfort firefighting suit according to claim 4, characterized in that: The waterproof and breathable layer (16) uses a waterproof and breathable PTFE membrane and a flame retardant base fabric material (aramid non-woven fabric), and is compounded through a polyurethane and a flame retardant polyurethane (PU) coating. Among them: the waterproof and breathable PTFE membrane and the flame retardant base fabric material (aramid non-woven fabric) account for 50% - 60%, the polyurethane accounts for 30% - 40%, and the flame retardant polyurethane (PU) coating accounts for 5% - 10%.

7. The thermophysiological comfort firefighting suit according to claim 4, characterized in that: The heat insulation layer (17) uses an aramid fiber felt material, and is compounded with an aluminized polyimide film and a flame retardant treated fiberglass grid cloth. Among them, the aramid fiber felt material accounts for 50% - 65%, the aluminized polyimide film accounts for 20% - 30%, and the flame retardant treated fiberglass grid cloth accounts for 15% - 25%.

8. The thermophysiological comfort fire-fighting suit according to claim 4, characterized in that: The phase change material layer (18) uses a paraffin organic phase change material, and is composed of polyurea, aramid non-woven fabric, and a flame retardant hot melt adhesive. Among them: the paraffin organic phase change material accounts for 60% - 70%, the polyurea accounts for 20% - 30%, the aramid non-woven fabric accounts for 5% - 10%, and the flame retardant hot melt adhesive accounts for 1% - 5%.

9. The thermophysiological comfort fire-fighting suit according to claim 4, characterized in that: The comfort layer (19) is mainly composed of cotton fiber, and develops blended yarns and core-spun yarns using polyester, spandex fiber, etc. Among them, the cotton fiber accounts for 60% - 80%, the spandex fiber accounts for 3% - 5%, and the rest are polyester and a certain proportion of modified polyester.

10. A thermophysiological comfort fire-fighting suit, characterized in that, A method for using a thermal physiological comfort firefighting suit according to any one of claims 1 to 9, the method comprising the following steps: S1. Select appropriate functional vest according to different task requirements (2); S2, inserting the inserting block (3) into the fixing block (4), and pushing the ball (5) to limit and fix the inserting block (3) through the spring (6), thereby completing the fixation of the fire-fighting suit (1) and the functional vest (2); S3, the tightness can be adjusted according to different body shapes through the adjustment ring (8) and the adjustment loop (10); S4. After adjustment, the fire-fighting suit (1) and the fire-fighting pants (14) can be worn and used.

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