Flame-retardant polyester fabric

Abstract

The utility model discloses a flame-retardant polyester fabric, which relates to the technical field of textiles and is characterized in that a plurality of arrayed recesses are arranged on the end face of an inner layer close to a heat insulation layer, a plurality of buffer parts are arranged in the recesses, and a plurality of grooves arranged along the length direction of the fabric are arranged on two sides of the heat insulation layer. And a buffer space and a heat insulation space are defined by the heat insulation layer, the inner layer and the high-toughness flame-retardant layer respectively. The high-toughness flame-retardant layer is not prone to abrasion and breakage when making contact with an external object due to the high toughness of the aramid fibers, the high-toughness flame-retardant layer has good flame retardance and a certain heat insulation effect after being soaked and coated with the flame retardant, and the heat insulation layer made of the aerogel further limits waste heat from being transmitted to the inner layer. The buffer space and the buffer piece made of the spandex fiber provide buffer when the fabric makes contact with an external object so as to reduce generated pressure, the abrasion and breakage conditions of the fabric are further reduced, and meanwhile damage to a user during collision can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of textiles, and more particularly to a flame-retardant polyester fabric. Background Art

[0002] Fire-resistant fabrics are generally used in special working environments, such as firefighting and smelting projects. Protective clothing made of fire-resistant fabrics needs to have certain protective, flame-retardant and heat-insulating properties to ensure that the wearer can work in high-temperature environments and protect the wearer's body from burns by open flames.

[0003] However, during fire rescue, the protective clothing will often come into contact with debris or sharp objects, making it easy for the protective clothing to wear and tear during use, and the protective and heat-insulating effect of the protective clothing will continue to decline during long-term use.

[0004] Therefore, new solutions need to be proposed to solve this problem. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a flame-retardant polyester fabric to solve the problem that fire-resistant fabrics are easily worn and broken due to frequent contact with debris and sharp objects.

[0006] The above technical purpose of the present utility model is achieved through the following technical solutions: the flame-retardant polyester fabric includes an inner layer and a heat-insulating layer fixedly connected to each other, the end face of the heat-insulating layer away from the inner layer is fixedly connected to a high-toughness flame-retardant layer, the end face of the inner layer close to the heat-insulating layer is provided with a plurality of arrays of recesses, a plurality of buffer parts are provided in the recesses, a plurality of grooves arranged along the length direction of the fabric are provided on both sides of the heat-insulating layer, and the heat-insulating layer and the inner layer and the high-toughness flame-retardant layer respectively enclose a buffer space and a heat-insulating space.

[0007] The utility model is further configured as follows: the diameter of the buffer member is smaller than the depth of the recess, the heat insulation layer is a V-shaped pleat in cross section, and the grooves on both sides of the heat insulation layer are integrally formed by pleating.

[0008] The utility model is further configured as follows: the buffer component is formed by kneading spandex fiber and polyester fiber, and the heat insulation layer is made of aerogel material.

[0009] The utility model is further configured as follows: heat absorbing elements are provided in the several grooves on the side of the heat insulation layer close to the high-toughness flame retardant layer, the diameter of the heat absorbing elements is the same as the depth of the grooves, and the heat absorbing elements are formed by twisting multiple strands of copper fibers.

[0010] The utility model is further configured as follows: the inner layer is configured as a honeycomb structure, and the plurality of depressions on the inner layer are integrally formed by weaving the honeycomb structure. The weaving density of the inner layer is configured as 121*105 / cm 2 .

[0011] The utility model is further configured as follows: the high-toughness flame retardant layer is configured as a plain weave, and the weaving density of the high-toughness flame retardant layer is configured as 194*176 / cm 2 The high-toughness flame-retardant layer is dip-coated with a flame retardant.

[0012] The utility model is further configured as follows: the high-toughness flame-retardant layer is woven by high-toughness yarn, the high-toughness yarn includes a high-toughness yarn core and a high-toughness covering yarn spirally wound on the outside thereof, the high-toughness yarn core is twisted by polyester fiber, and the high-toughness covering yarn is twisted by aramid fiber.

[0013] The utility model is further configured as follows: the inner layer is woven by hygroscopic yarn, the hygroscopic yarn is twisted by a first strand and a second strand, the first strand is twisted by polyester fiber, and the second strand is twisted by cotton fiber.

[0014] In summary, the utility model has the following beneficial effects: the strong toughness of aramid fiber makes the high-toughness flame retardant layer not easy to wear and break when in contact with foreign objects, and the pore size inside the high-toughness flame retardant layer is reduced by increasing the weaving density of the high-toughness flame retardant layer, and after being impregnated and coated with a flame retardant, the high-toughness flame retardant layer has good flame retardancy and a certain heat insulation effect. The heat-absorbing component can absorb the residual heat entering the fabric from the pores on the high-toughness flame retardant layer, and the residual heat can be dissipated through the heat-insulating space. The strong heat-insulating effect of the heat-insulating layer further limits the transfer of residual heat to the inner layer. The buffer space and the buffer component provide a buffer for the fabric when it comes into contact with foreign objects to reduce the pressure generated, reduce the wear and breakage of the fabric, and reduce the damage to the user when bumped, thereby improving the protective effect of the fabric. The inner layer made of cotton fiber can absorb the sweat generated on the user's body surface in time while providing a soft touch, keeping the skin dry and comfortable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded view of the utility model;

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0017] Figure 3 This is a cross-section of high-tenacity yarn;

[0018] Figure 4 This is a cross-section of hygroscopic yarn.

[0019] In the figure: 1. Inner layer; 2. Thermal insulation layer; 3. High-toughness flame-retardant layer; 4. Depression; 5. Buffer; 6. Groove; 7. Buffer space; 8. Thermal insulation space; 9. Heat absorption element; 10. High-toughness yarn; 11. High-toughness yarn core; 12. High-toughness covering yarn; 13. Moisture-absorbing yarn; 14. First strand; 15. Second strand. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0021] Example: The flame retardant polyester fabric, such as Figure 1 and Figure 4 As shown, it comprises an inner layer 1 and a heat insulating layer 2 fixedly connected to each other, wherein the inner layer 1 is made by putting the moisture-absorbing yarn 13 into an air-jet loom and weaving it in a honeycomb structure in a manner of 121*105 / cm 2 The inner layer 1 is woven with a weaving density of 100 nm. The depressions 4 arranged in several arrays on the inner layer 1 are all formed in one piece by the weaving method of honeycomb tissue. The hygroscopic yarn 13 is formed by twisting the first strand 14 and the second strand 15 by a twisting machine. The first strand 14 is twisted by twisting polyester fiber by a twisting machine, and the second strand 15 is twisted by twisting cotton fiber by a twisting machine. The good wear resistance and heat insulation of polyester fiber make the inner layer 1 have a prolonged service life and a certain heat insulation effect. The good moisture absorption of cotton fiber enables the inner layer 1 to absorb the sweat generated by the user's body surface in time. The weaving density of the inner layer 1 is low, so that there are dense pores in the thickness direction of the inner layer 1, which makes the inner layer 1 have good breathability.

[0022] like Figure 1 As shown, the thermal insulation layer 2 is an aerogel film made through sol, calendering and drying steps. Aerogel has extremely low thermal conductivity, so that the thermal insulation layer 2 can effectively block the external high temperature and protect the wearer's body from high temperature damage. The melting point of the aerogel film is usually around 1000 degrees Celsius, so that it maintains structural stability in the environment of long-term high temperature and open flame contact, and has good flame retardancy. At the same time, aerogel is lightweight, which reduces the gravity burden of the protective clothing when worn, making it convenient for the wearer to carry out fire rescue activities for a long time.

[0023] like Figure 1-Figure 3 As shown, the end surface of the heat insulation layer 2 away from the inner layer 1 is fixedly connected with a high-toughness flame retardant layer 3, which is made by putting the high-toughness yarn 10 into the air-jet loom in a plain weave manner and weaving it in 194*176 / cm 2The high-tenacity yarn 10 includes a high-tenacity yarn core 11 and a high-tenacity covering yarn 12. The high-tenacity yarn 10 is processed by spirally winding the high-tenacity covering yarn 12 on the high-tenacity yarn core 11 through a spindle spinning process. The high-tenacity yarn core 11 is twisted by a twisting machine to twist polyester fiber, and the high-tenacity covering yarn 12 is twisted by a twisting machine to twist aramid fiber. The strength of aramid fiber is 5 to 6 times that of steel wire, so that the high-tenacity flame retardant layer 3 has excellent anti-cut and anti-puncture properties, avoiding the protective clothing from breaking during fire rescue and endangering the life safety of the wearer. Aramid fiber has good flame retardancy. When encountering high-temperature open flame combustion, the surface will carbonize, so that it does not support combustion and does not produce molten droplets. The weaving density of the high-tenacity flame retardant outer layer is increased to reduce the size of the pores inside it. The internal pores and surface of the high-tenacity flame retardant layer 3 are covered with flame retardant through a dip coating process, so that the high-tenacity flame retardant layer 3 has good flame retardant effect while reducing high temperature penetration.

[0024] like Figure 1 and Figure 2 As shown, the several depressions 4 on the inner layer 1 are filled with several spherical buffers 5. The buffers 5 are made by cutting spandex fiber and polyester fiber into short fibers through a cutting machine and then putting them into an automatic pilling machine at a ratio of 2:1 for kneading. The diameter of the buffer 5 is smaller than the depth of the depression 4. The good elasticity and elastic recovery ability of the spandex fiber make the buffer 5 have good ductility and can quickly return to its original shape after being squeezed. Both sides of the thermal insulation layer 2 are provided with several V-shaped grooves 6 arranged along the length direction of the fabric. The several grooves 6 on both sides of the thermal insulation layer 2 are formed as one piece by a pleating machine through pleating, so that the thermal insulation layer 2 is respectively surrounded by a buffer space 7 and a thermal insulation space 8 with the inner layer 1 and the high-toughness flame retardant layer 3. The buffer space 7 and the buffer 5 provide a buffer for the fabric when it comes into contact with foreign objects to reduce the pressure generated, thereby reducing the wear and tear of the fabric and reducing the damage to the user when it is bumped, thereby improving the protective effect of the fabric.

[0025] like Figure 1 and Figure 2 As shown, the air content between the flame retardant layer and the high-toughness flame retardant layer 3 is increased by the heat-insulating space 8. The thermal conductivity of air is poor. The heat-insulating space 8 can dissipate the residual heat entering the fabric from the pores on the high-toughness flame retardant layer 3, further improving the overall heat insulation effect of the fabric. A heat-absorbing component 9 is provided in each of the several grooves 6 on the side of the heat-insulating layer 2 close to the high-toughness flame retardant layer 3. The heat-absorbing component 9 is formed by twisting multiple strands of copper fibers together through a twisting machine and then cutting them with a cutting machine. The diameter of the heat-absorbing component 9 is the same as the depth of the groove 6. The copper fiber has good heat absorption and heat dissipation properties. The heat-absorbing component 9 can timely absorb the residual heat entering the fabric from the pores on the high-toughness flame retardant layer 3, and continuously maintain a stable heat insulation effect of the fabric.

[0026] like Figures 1-4As shown, when it is necessary to make the flame-retardant polyester fabric, a twisting machine is used to twist the polyester fiber and the cotton fiber into a first strand 14 and a second strand 15 respectively, and then the twisting machine is used to twist the first strand 14 and the second strand 15 to form a hygroscopic yarn 13, and the hygroscopic yarn 13 is placed in an air-jet loom and woven into an inner layer 1 by a honeycomb weaving method, and the several depressions 4 on the inner layer 1 are all formed integrally by the weaving method of the honeycomb tissue, and a twisting machine is used to twist the polyester fiber and the aramid fiber into a high-tenacity yarn core 11 and a high-tenacity covering yarn 12 respectively, and the high-tenacity covering yarn 12 is spirally wound on the high-tenacity yarn core 11 by a spindle spinning process to form a high-tenacity yarn 10, and the high-tenacity yarn 10 is placed The fabric is put into an air-jet loom and woven into a fabric in a plain weave manner, which is then dipped in a flame retardant and dried to form a high-toughness flame-retardant layer 3. The heat-insulating layer 2 is processed into a groove 6 by a pleating machine through a pleating method. Multiple strands of copper fibers are twisted together by a twisting machine and then cut by a cutting machine to form a heat-absorbing component 9. The polyester fiber and the spandex fiber are cut into short fibers by a cutting machine and then put into an automatic pilling machine for kneading to form a buffer component 5. After glue is applied to the recess 4 and the recess 6 by a glue coating machine, the buffer component 5 is fixedly connected to the recess 4, and the heat-absorbing component 9 is fixedly connected to the recess 6. Finally, the inner layer 1, the heat-insulating layer 2 and the high-toughness flame-retardant layer 3 are sewed and fixed to each other using high-toughness yarn 10.

[0027] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A flame-retardant polyester fabric, comprising an inner layer (1) and a heat-insulating layer (2) fixedly connected to each other, wherein the end surface of the heat-insulating layer (2) away from the inner layer (1) is fixedly connected to a high-toughness flame-retardant layer (3), characterized in that: The inner layer (1) is provided with a plurality of recesses (4) in an array on its end surface close to the heat-insulating layer (2), and a plurality of buffer members (5) are provided in the recesses (4). Both sides of the heat-insulating layer (2) are provided with a plurality of grooves (6) arranged along the length direction of the fabric. The heat-insulating layer (2) and the inner layer (1) and the high-toughness flame-retardant layer (3) respectively enclose a buffer space (7) and a heat-insulating space (8).

2. The flame retardant polyester fabric according to claim 1, characterized in that: The diameter of the buffer (5) is smaller than the depth of the recess (4); the heat insulating layer (2) is a pleated layer with a V-shaped cross section; the grooves (6) on both sides of the heat insulating layer (2) are integrally formed by pleating.

3. The flame retardant polyester fabric according to claim 2, characterized in that: The buffer component (5) is formed by kneading spandex fibers and polyester fibers, and the heat insulation layer (2) is made of aerogel material.

4. The flame retardant polyester fabric according to claim 3, characterized in that: Heat absorbing elements (9) are provided in a plurality of grooves (6) on one side of the heat insulating layer (2) close to the high-toughness flame retardant layer (3); the diameter of the heat absorbing element (9) is the same as the depth of the groove (6); and the heat absorbing element (9) is formed by twisting a plurality of copper fibers.

5. The flame retardant polyester fabric according to claim 1, characterized in that: The inner layer (1) is configured as a honeycomb structure, and the plurality of depressions (4) on the inner layer (1) are integrally formed by weaving the honeycomb structure. The weaving density of the inner layer (1) is configured as 121*105 / cm 2 .

6. The flame retardant polyester fabric according to claim 1, characterized in that: The high-toughness flame-retardant layer (3) is set as a plain weave, and the weaving density of the high-toughness flame-retardant layer (3) is set to 194*176 / cm 2 The high-toughness flame-retardant layer (3) is dip-coated with a flame retardant.

7. The flame retardant polyester fabric according to claim 6, characterized in that: The high-tenacity flame-retardant layer (3) is woven by high-tenacity yarn (10), wherein the high-tenacity yarn (10) comprises a high-tenacity yarn core (11) and a high-tenacity covering yarn (12) spirally wound on the outside thereof, wherein the high-tenacity yarn core (11) is formed by twisting polyester fibers, and the high-tenacity covering yarn (12) is formed by twisting aramid fibers.

8. The flame retardant polyester fabric according to claim 7, characterized in that: The inner layer (1) is woven by hygroscopic yarn (13), wherein the hygroscopic yarn (13) is formed by twisting a first strand (14) and a second strand (15), wherein the first strand (14) is twisted by polyester fibers, and the second strand (15) is twisted by cotton fibers.

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