Aramid fiber cloth with efficient fireproof and heat-insulating performance

Abstract

The utility model belongs to the technical field of aramid fiber cloth manufacturing, and particularly relates to an aramid fiber cloth with efficient fireproof and heat-insulating performance, which comprises two outer protective layers, a heat-insulating layer and a plurality of sewing threads, the heat-insulating layer and the plurality of sewing threads are positioned between the two outer protective layers, and the sewing threads are sewed on the two outer protective layers and the heat-insulating layer along the warp direction in an S shape. The sewing threads are yarns made of a poly (p-phenylene terephthamide) material; the outer protective layer is formed by weaving warp yarns and weft yarns by adopting a plain weaving method, and the warp yarns and the weft yarns are yarns made of a poly-p-phenylene terephthamide material; the heat insulation layer is made of aluminum foil composite cloth. The two outer protection layers and the heat insulation layer are sewn together through the sewing threads, so that the fireproof effect is achieved through materials adopted by the warp yarns and the weft yarns on the outer protection layers, then the heat insulation layer is used for isolating heat energy penetrating through the outer protection layers in a radiation mode, the fireproof and heat insulation effects are improved, the overall performance of the aramid fiber cloth is improved, and the service life of the aramid fiber cloth is prolonged. The fireproof and heat-insulating use is convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of aramid cloth manufacturing, and particularly relates to aramid cloth with high-efficiency fireproof and heat-insulating properties. Background Art

[0002] Aramid fabric, also known as Kevlar or aramid fiber fabric, is a fabric with excellent insulating properties. Made primarily from aramid fibers, these fibers possess exceptional properties such as high strength and high modulus. Its strength is 5-6 times that of high-quality steel, and its modulus is 2-3 times that of high-quality steel or fiberglass. Aramid fabric's superior properties have led to its widespread application in a variety of fields, including but not limited to composite materials, bulletproof products, building materials, specialized protective clothing, and electronic equipment.

[0003] Problems with existing technologies:

[0004] Existing aramid cloth has fireproof function because it uses meta-aramid, but most of them are made of a single layer of aramid yarn. For shorter-term fire protection applications, the heat radiation time is shorter, thus having a heat insulation effect. However, when dealing with longer-term close-range fire protection, the heat energy generated by the fire radiates at a shorter distance, so that the heat radiation penetrates the aramid cloth and causes heat radiation damage to the protective equipment. Utility Model Content

[0005] The purpose of the utility model is to provide an aramid cloth with high-efficiency fireproof and heat-insulating properties, which can solve the above problems.

[0006] The technical solutions adopted by this utility model are as follows:

[0007] The utility model provides an aramid cloth with high-efficiency fireproof and heat-insulating properties, comprising two outer protective layers, a heat-insulating layer located between the two outer protective layers, and a plurality of sewing threads, wherein the sewing threads are sewn in an S-shape along the warp direction on the two outer protective layers and the heat-insulating layer, and the sewing threads are yarns made of poly(p-phenylene terephthalamide);

[0008] The outer protective layer is formed by weaving warp yarns and weft yarns in a plain weave method, and the warp yarns and weft yarns are both made of poly(p-phenylene terephthalamide) yarns;

[0009] The heat insulation layer is made of aluminum foil composite cloth.

[0010] The above-mentioned aramid cloth with high-efficiency fireproof and heat-insulating properties can be used in the fire area, so that the outer protective layer can isolate the fire. At the same time, the heat generated by the fire passes through the outer protective layer and is intercepted by the thermal insulation layer, so that hot air flow is formed between the thermal insulation layer and the outer protective layer, achieving the effect of fireproofing, heat insulation and heat dissipation.

[0011] Preferably, the weft yarn is soaked in aqueous latex water to improve the tightness during weaving.

[0012] Preferably, the distance between two adjacent sewing lines is set between 100-200 mm.

[0013] Preferably, the denier value of the sewing thread is set to one third of the warp yarn and the weft yarn.

[0014] The beneficial effects are:

[0015] The utility model sews two outer protective layers and a heat insulating layer together by sewing thread, thereby utilizing the materials of the warp and weft yarns on the outer protective layer to achieve a fireproof effect, and then utilizes the heat insulating layer to isolate the heat energy radiated through the outer protective layer, thereby improving the fireproof and heat insulating effect, improving the overall performance of the aramid cloth, and being convenient for use in fireproofing and heat insulating. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the warp section in the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0019] 1. Outer sheath; 11. Warp yarn; 12. Weft yarn; 2. Thermal insulation layer; 3. Sewing thread. DETAILED DESCRIPTION

[0020] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0021] like Figure 1 As shown, an aramid cloth with high fireproof and heat-insulating properties includes two outer sheaths 1, a heat-insulating layer 2 located between the two outer sheaths 1, and a plurality of sewing threads 3. The sewing threads 3 are sewn in an S-shape along the warp direction to the two outer sheaths 1 and the heat-insulating layer 2. The sewing threads 3 are made of yarn made of poly(p-phenylene terephthalamide).

[0022] The outer sheath 1 is formed by plain weaving of warp yarns 11 and weft yarns 12, with a weaving density of not less than 80% in both the warp and weft directions. The warp yarns 11 and weft yarns 12 are both made of poly(p-phenylene terephthalamide), which can utilize the material properties of poly(p-phenylene terephthalamide) to provide shielding and protection against open flames.

[0023] The heat insulation layer 2 is made of aluminum foil composite cloth, which blocks the radiation transfer of heat generated by the fire and improves the heat insulation effect.

[0024] Refer to the attached Figure 2 The weft yarn 12 is soaked in water-based latex water to improve the tightness when it is woven, so that when the outer protective layer 1 is woven, the weft yarn 12 can be tightly bonded with the warp yarn 11, thereby improving the heat insulation effect. When preventing fire, it can isolate the air and extinguish the fire.

[0025] Furthermore, the spacing between two adjacent sewing lines 3 is set between 100-200 mm. Such a setting, on the one hand, can form a circulation space between the thermal insulation layer 2 and the outer protective layer 1, which is conducive to air flow for heat dissipation. On the other hand, the outer protective layer 1 and the thermal insulation layer 2 can be connected to form a connected fabric, which is convenient for use in fire prevention and heat insulation.

[0026] Furthermore, the denier value of the sewing thread 3 is set to one third of the warp yarn 11 and the weft yarn 12. Such a setting can facilitate the sewing thread 3 to be pulled through the needle, making it easier to insert the outer protective layer 1 and the thermal insulation layer 2 for sewing connection.

[0027] With the above structure, the aramid cloth can be used in the fire area, so that the outer protective layer 1 can isolate the fire. At the same time, the heat generated by the fire passes through the outer protective layer 1 and is intercepted by the thermal insulation layer 2, so that hot air flow is formed between the thermal insulation layer 2 and the outer protective layer 1, achieving the effect of fire prevention, heat insulation and heat dissipation.

[0028] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. Aramid fabric with high fireproof and heat-insulating properties, characterized by: The invention comprises two outer protective layers (1), a heat insulating layer (2) and a plurality of sewing threads (3) located between the two outer protective layers (1), wherein the sewing threads (3) are sewn onto the two outer protective layers (1) and the heat insulating layer (2) in an S-shape along the longitudinal direction, and the sewing threads (3) are yarns made of poly(p-phenylene terephthalamide); The outer protective layer (1) is formed by weaving warp yarns (11) and weft yarns (12) in a plain weave method, and the warp yarns (11) and weft yarns (12) are both yarns made of poly(p-phenylene terephthalamide); The heat insulation layer (2) is made of aluminum foil composite cloth.

2. The aramid cloth with high fireproof and heat-insulating properties according to claim 1, characterized in that: The weft yarn (12) is soaked in aqueous latex water to improve the tightness during weaving.

3. The aramid cloth with high fireproof and heat-insulating properties according to claim 2, characterized in that: The distance between two adjacent sewing lines (3) is set between 100-200 mm.

4. The aramid cloth with high fireproof and heat-insulating properties according to claim 3, characterized in that: The denier value of the sewing thread (3) is set to one third of the warp yarn (11) and the weft yarn (12).

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