High-temperature-resistant fabric, preparation method thereof and high-temperature-resistant protective clothing

Abstract

The application discloses a kind of high-temperature-resistant fabrics, including successively stacked fire-retardant layer, inflatable layer and substrate layer;Wherein, the inflatable high-temperature-resistant yarn includes high-temperature-resistant yarn core and heat-expandable yarn layer, which is arranged on the outer surface of the high-temperature-resistant yarn core.The application also discloses a kind of preparation method of high-temperature-resistant fabric, comprising the following steps: S1, a plurality of heat-expandable yarns are wound on high-temperature-resistant yarn to form an inflatable high-temperature-resistant yarn, and the inflatable high-temperature-resistant yarn is used to interweave into an inflatable layer;S2, the inflatable layer is glued to the composite layer;S3, the fire-retardant layer is glued to the inflatable layer.The application also discloses a kind of high-temperature-resistant fabric protective clothing, which is made of the high-temperature-resistant fabric.The high-temperature-resistant fabric of the application has good air permeability when not in contact with high-temperature heat source, and the protective clothing made of the high-temperature-resistant fabric can improve the comfort of the staff after wearing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile fabrics, in particular to a high-temperature-resistant fabric, a preparation method thereof and a high-temperature-resistant protective garment. BACKGROUND

[0002] When working in the fields of metallurgy, welding, etc., workers need to wear protective garments to ensure the safety of work and protect the skin from burns.

[0003] The existing protective garments are generally made of pure cotton, cowhide or pure pre-oxygen filaments. The pure cotton protective garment has a high weight, is thick and heavy to wear, has a short service life and an average life of only one week. The cowhide protective garment has a high cost and poor comfort, cannot be made into a complete garment and lacks overall protection for the human body. The pure pre-oxygen filament has a low strength, is not conducive to manufacturing and the manufactured protective garment has a low strength.

[0004] However, the fabric used in the protective garment in the above patent generally has poor air permeability, and the workers have poor comfort after wearing it. SUMMARY

[0005] The purposes of the present application include providing a high-temperature-resistant fabric designed for high-temperature-resistant fabrics, which has good air permeability when the fabric is not in contact with a high-temperature heat source.

[0006] Another purpose of the present application includes providing a preparation method of a high-temperature-resistant fabric designed for the preparation of high-temperature-resistant fabrics, which has good air permeability when the prepared fabric is not in contact with a high-temperature heat source.

[0007] Another purpose of the present application includes providing a high-temperature-resistant protective garment designed for protective garments, which has good air permeability when the protective garment is not in contact with a high-temperature heat source, improving the comfort of workers after wearing it.

[0008] A high-temperature-resistant fabric includes a flame-retardant layer, an expandable layer and a base layer stacked in sequence, the flame-retardant layer is woven from flame-retardant yarn, and the expandable layer is woven from expandable high-temperature-resistant yarn; wherein the expandable high-temperature-resistant yarn includes a high-temperature-resistant yarn core and a heat-expandable yarn layer, and the heat-expandable yarn layer is arranged on the outer surface of the high-temperature-resistant yarn core.

[0009] In an embodiment of the present application, the heat-expandable yarn includes a high-temperature-resistant yarn and expandable graphite, and the expandable graphite is glued to the surface of the high-temperature-resistant yarn.

[0010] In an embodiment of the present application, the width of the gap between two adjacent expandable high-temperature-resistant yarns is d, and the difference between the expanded diameter and the initial diameter of the expandable high-temperature-resistant yarn is Δr, then d < 2Δr.

[0011] In an embodiment of the present application, the base layer is woven by mixing polyester yarns and nylon yarns.

[0012] A preparation method of a high-temperature-resistant fabric, for preparing a high-temperature-resistant fabric, comprising the following steps:

[0013] S1 winding a plurality of heat-expanded yarns on a high-temperature-resistant yarn to form an expandable high-temperature-resistant yarn, and interweaving the expandable high-temperature-resistant yarn to form an expandable layer;

[0014] S2 gluing the expandable layer to a composite layer;

[0015] S3 gluing a fire-retardant layer to the expandable layer.

[0016] In an embodiment of the present application, the preparation method of the heat-expanded yarn is mixing expandable graphite and a high-temperature-resistant adhesive to obtain a mixed solution, and coating the mixed solution on the surface of a high-temperature-resistant yarn and solidifying.

[0017] In an embodiment of the present application, the high-temperature-resistant adhesive is a phosphate-based adhesive or a silicate-based adhesive.

[0018] In an embodiment of the present application, the high-temperature-resistant fiber is a polytetrafluoroethylene fiber or a polyimide fiber.

[0019] A high-temperature-resistant fabric protective clothing is prepared by using the high-temperature-resistant fabric.

[0020] The technical scheme of the embodiment of the present application has at least the following advantages and beneficial effects:

[0021] The embodiment of the present application sets the phase-change fiber layer between the first aluminum film and the second aluminum film, reduces the heat transfer between the first aluminum film and the second aluminum film by using the phase-change fiber layer, makes the whole fabric have better heat insulation, and reduces the heat conduction to the wearer. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme of the embodiment of the present application, the following will briefly introduce the drawings needed to be used in the embodiment. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0023] Figure 1 The figure is a structural schematic diagram of the present application;

[0024] Figure 2 The figure is a structural schematic diagram of the expandable high-temperature-resistant yarn in the present application;

[0025] Figure 3Schematic diagram of the winding of the heat-expandable yarn in the present application;

[0026] Figure 4 For Figure 3 Schematic diagram of two adjacent heat-expandable yarns in the present application which have not been expanded;

[0027] Figure 5 For Figure 3 Schematic diagram of a single heat-expandable yarn in the present application which has been expanded;

[0028] Figure 6 For Figure 3 Schematic diagram of two adjacent heat-expandable yarns in the present application which have been expanded.

[0029] Legend: 1 - flame retardant layer, 2 - expandable layer, 21 - expandable high-temperature resistant yarn, 211 - high-temperature resistant yarn core, 212 - layer of heat-expandable yarn, 213 - heat-expandable yarn, 3 - base layer. DETAILED DESCRIPTION

[0030] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0032] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0033] In the description of the present application, it should be noted that if the terms "inner", "outer" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the product of the present application when it is usually placed, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0034] In the description of the present application, it is also necessary to explain that, unless otherwise explicitly specified and limited, if the terms "arrange", "install", "configure", "connect" appear, they should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] Embodiment 1

[0036] Please refer to Figure 1 The present embodiment provides a high-temperature-resistant fabric, which comprises a flame-retardant layer 1, an expandable layer 2 and a base layer 3 which are sequentially stacked.

[0037] The base layer 3 is mixedly woven from polyester yarn and nylon yarn, for example, polyester yarn as weft and nylon yarn as warp, and a composite fabric is made by weaving the warp and weft.

[0038] The flame-retardant layer 1 is woven from flame-retardant yarn, which can be made of polyacrylonitrile flame-retardant fiber or aramid flame-retardant fiber, and the flame-retardant layer 1 of the high-temperature-resistant fabric directly faces the heat source.

[0039] The expandable layer 2 is woven from expandable high-temperature-resistant yarn 21, specifically, as shown in Figure 2 The expandable high-temperature-resistant yarn 21 comprises a high-temperature-resistant yarn core 211 and a heat-expandable yarn layer 212, and the heat-expandable yarn 213 comprises high-temperature-resistant yarn and expandable graphite, and the high-temperature-resistant fiber is polytetrafluoroethylene fiber or polyimide fiber. When preparing the heat-expandable yarn 213, the expandable graphite is mixed with a high-temperature-resistant adhesive to prepare a mixed solution, and then the mixed solution is coated on the surface of the high-temperature-resistant yarn and solidified. The high-temperature-resistant adhesive is a phosphate-based adhesive or a silicate-based adhesive. The skilled in the art can set the solidification temperature according to the actual needs, but the solidification stability needs to be lower than the expansion temperature of the expandable graphite. By winding and wrapping a layer of heat-expandable yarn 213 outside the high-temperature-resistant yarn core 211, the winding mode is as shown in Figure 3 When the heat-expandable yarn 213 reaches the expansion temperature, the heat-expandable yarn layer 212 expands, causing the overall diameter of the expandable high-temperature-resistant yarn 21 to increase.

[0040] When winding into the expandable layer 2, part of the expandable high-temperature-resistant yarn 21 serves as the warp, and the other part of the expandable high-temperature-resistant yarn 21 serves as the weft, and the warp and weft are interwoven, and the spacing between adjacent two warps or adjacent two wefts needs to be controlled, as shown in Figure 4As shown, taking two adjacent warp threads as an example, the width of the gap between the two adjacent warp threads is d, and the difference between the radius of the single expandable high-temperature yarn 21 after expansion and the initial radius is Δr. Then d needs to satisfy: d < 2Δr. When the expandable high-temperature yarn 21 is not expanded, the gap with a width of d between the two warp threads is used to enhance the air permeability of the fabric; when the expandable high-temperature yarn 21 is expanded after being heated, as shown, Figures 5-6 As shown, because there is not enough space between the two adjacent warp threads for the two expandable high-temperature yarns 21 to fully expand, the two expanded expandable high-temperature yarns 21 are pressed against each other, and the gap between the two expanded expandable high-temperature yarns 21 disappears, thereby reducing the inflow of external hot air through the gap between the expandable high-temperature yarns 21 into the inside of the fabric, and reducing the air permeability of the fabric.

[0041] Embodiment 2

[0042] A preparation method of a high-temperature-resistant fabric, used for preparing the high-temperature-resistant fabric of embodiment 1, the preparation method comprising the following steps:

[0043] S1 winding a plurality of heat-expanded yarns 213 on the high-temperature yarn to form the expandable high-temperature yarn 21, and then interweaving the expandable high-temperature yarn 21 to form the expandable layer 2;

[0044] S2 gluing the expandable layer 2 to the composite layer;

[0045] S3 gluing the flame-retardant layer 1 to the expandable layer 2.

[0046] In this embodiment, the preparation method of the heat-expanded yarn 213 is: mixing expandable graphite and a high-temperature-resistant adhesive to obtain a mixed solution, wherein the high-temperature-resistant adhesive is a phosphate-based adhesive or a silicate-based adhesive. Then the mixed solution is coated on the surface of the high-temperature-resistant yarn and solidified. The high-temperature-resistant fiber is polytetrafluoroethylene fiber or polyimide fiber.

[0047] Embodiment 3

[0048] A high-temperature-resistant fabric protective clothing made of the high-temperature-resistant fabric of embodiment 1.

[0049] The above is only a preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high temperature resistant fabric, characterized in that, The flame-retardant layer is made of flame-retardant yarns, and the expandable layer is made of expandable high-temperature-resistant yarns. The expandable high-temperature-resistant yarns comprise a high-temperature-resistant yarn core and a heat-expandable yarn layer arranged on the outer surface of the high-temperature-resistant yarn core. The heat-expandable yarns comprise high-temperature-resistant yarns and expandable graphite adhered to the surface of the high-temperature-resistant yarns. The preparation method of the high-temperature-resistant fabric comprises: S1. winding a plurality of heat-expandable yarns on a high-temperature-resistant yarn core to form expandable high-temperature-resistant yarns, and interweaving the expandable high-temperature-resistant yarns to form an expandable layer; S2. adhering the expandable layer to a base layer; S3. adhering a flame-retardant layer to the expandable layer; The preparation method of the heat-expandable yarns comprises mixing expandable graphite and a high-temperature-resistant adhesive to form a mixed solution, and coating the mixed solution on the surface of high-temperature-resistant yarns and solidifying.

2. The high-temperature-resistant fabric according to claim 1, wherein The width of the gap between two adjacent expandable high-temperature-resistant yarns is d, and the difference between the expanded diameter and the initial diameter of the expandable high-temperature-resistant yarns is Δr, and d < 2Δr.

3. The high-temperature-resistant fabric according to claim 1, wherein The base layer is made of polyester yarns and nylon yarns.

4. The high-temperature-resistant fabric according to claim 1, wherein The high-temperature-resistant adhesive is a phosphate-based adhesive or a silicate-based adhesive.

5. The high-temperature-resistant fabric according to claim 1, wherein The high-temperature-resistant yarns are polytetrafluoroethylene fibers or polyimide fibers.

6. A high temperature resistant fabric protective garment, characterized in that, The high-temperature-resistant fabric is made of the high-temperature-resistant fabric according to any one of claims 1-5.

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