Novel composite breathable anti-poison fabric

Abstract

The utility model relates to the technical field of fabrics, in particular to a novel composite breathable anti-poison fabric which comprises a base layer and a functional layer, the functional layer comprises a carbon nanofiber membrane, the base layer is divided into an upper base layer and a lower base layer, and an epoxy resin anti-corrosion coating is coated on one side face of the upper base layer. A PU waterproof moisture-permeable film is sprayed on the side face of the other side of the upper base layer through electrostatic spinning, a regular hexagon pattern is engraved on the lower base layer through laser, spherical carbon particles are placed in the regular hexagon pattern, and the upper base layer and the lower base layer are mutually bonded through ultrasonic welding; the upper base fabric is one of cotton cloth, polyester cloth, acrylic cloth, polyamide cloth, aramid cloth, viscose cloth or polyacrylonitrile pre-oxidized fiber cloth; the active carbon particles can effectively adsorb toxic steam and can be continuously and stably kept at a designated position in the movement friction process of a wearer, and therefore the continuous protection effect is achieved.

Description

Technical Field

[0001] The utility model specifically relates to a novel composite breathable anti-toxic fabric, belonging to the technical field of fabrics. Background Art

[0002] Activated carbon is composed of three components: graphite microcrystals, single-plane carbon meshes, and amorphous carbon. Graphite microcrystals are the primary component of activated carbon. Activated carbon possesses both a crystalline and porous structure within the carbon, and a specific chemical structure on its surface, which contributes to its adsorption capacity. Among activated carbons, research has shown that pitch-based microspheres exhibit superior water absorption capacity for toxic vapors.

[0003] Currently, breathable protective clothing fabrics primarily use spherical carbon particles or carbon-doped polymer fibers to create the functional layer. However, existing breathable chemical protective fabric technology still faces several bottlenecks: the spherical carbon particle functional layer is prone to shedding and agglomeration, resulting in changes in the uniformity of the functional layer structure, which in turn affects the protective stability of the composite fabric. While carbon-doped fibers can significantly improve the structural stability of the functional layer, a significant portion of the spherical carbon doped into the polymer is embedded within the fiber, hindering the full utilization of the activated carbon's adsorption properties, thus hindering further improvement in the functional layer's adsorption performance.

[0004] Activated carbon fiber also has advantages such as far-infrared emission, negative ion generation, odor absorption and removal, humidity regulation, thermal insulation, antibacterial properties, and the ability to kill dust mites, making it suitable for use as a health care material. However, direct contact with the skin may cause skin allergies or damage. Therefore, activated carbon fiber needs to be combined with base fabric to form a functional composite fabric for direct use. This can be used as functional sheets and pillowcases, possessing these multiple health care functions.

[0005] The two aforementioned materials are often bonded to other fabrics using a point-bonding technique. When activated carbon fibers are used, a layer of hot-melt adhesive is applied to the composite fabric. This results in poor overall breathability and softness, impacting the overall functionality of the composite fabric. Furthermore, the activated carbon bonded via point-bonding technology will partially come into contact with the adhesive, which can affect the activated carbon's ability to function and, consequently, the product's effectiveness. Glue-bonded activated carbon also carries the risk of falling off, resulting in an undesirable spatial distribution of particles and a partial loss of its anti-toxic effect. Furthermore, the use of glue also increases the weight of the garment, exceeding the standard weight range.

[0006] In view of this, the present utility model is proposed. Utility Model Content

[0007] The purpose of the utility model is to provide a new type of composite breathable anti-toxic fabric in order to solve the above problems, which has the advantages of integrating flame retardancy, anti-toxicity and breathability functions.

[0008] The utility model achieves the above-mentioned purpose through the following technical solutions: a new type of composite breathable anti-toxic fabric, including a base layer and a functional layer, the functional layer including the carbon nanofiber membrane, the base layer is divided into the upper base layer and the lower base layer, one side of the upper base layer is coated with the epoxy resin anti-corrosion coating, the other side of the upper base layer is electrostatically spun and sprayed with the PU waterproof and breathable membrane, the lower base layer is laser-engraved with a regular hexagonal pattern, spherical carbon particles are placed in the regular hexagonal pattern, and the upper base layer and the lower base layer are bonded to each other by ultrasonic welding.

[0009] Furthermore, in order to provide different physical and chemical properties for the fabric as a whole to meet the needs of different application scenarios, the upper base fabric is one of cotton, polyester, acrylic, nylon, aramid, viscose or polyacrylonitrile pre-oxidized silk.

[0010] Furthermore, in order to combine the advantages of different materials, improve the strength, elasticity, wear resistance and comfort of the fabric, and adapt to diversified application needs, the lower base layer is one of the woven fabrics of cotton and high-strength polyester, woven fabrics of cotton and spandex, woven fabrics of cotton and nylon, woven fabrics of viscose and nylon, woven fabrics of viscose and spandex, and woven fabrics of viscose and high-strength polyester.

[0011] Furthermore, in order to improve the structural strength of the spherical carbon particles, the length of the regular hexagonal pattern is 1 cm to 2 cm, and 3 to 8 points are distributed on each side, and the pattern is solidified after bonding.

[0012] Furthermore, in order to improve the comprehensive performance of the fabric and meet the high strength, high temperature resistance and corrosion resistance requirements in complex environments, the functional layer also includes the anti-tear layer, the thermal insulation layer and the corrosion-resistant layer. The thermal insulation layer is fixedly arranged on the carbon nanofiber membrane, the corrosion-resistant layer is fixedly connected to the thermal insulation layer, and the anti-tear layer is arranged between the corrosion-resistant layer and the thermal insulation layer.

[0013] Furthermore, in order to ensure that the fabric is not easily damaged under various high stress or harsh conditions and to extend its service life, the tear-proof layer is composed of interwoven and woven anti-tensile threads.

[0014] Furthermore, in order to utilize the excellent high temperature resistance, low thermal conductivity and excellent mechanical properties of ceramic fiber to achieve efficient thermal insulation effect of the fabric and reduce heat transfer, the thermal insulation layer is made of ceramic fiber material.

[0015] Furthermore, in order to enable the fabric to effectively resist the erosion of various corrosive substances and extend the service life of the material, the corrosion-resistant layer is made of polyester fiber.

[0016] The technical effects and advantages of the utility model are as follows: the fabric laminated structure based on ultrasonic welding, the PU waterproof and breathable membrane is coated on the upper base layer, which does not affect the breathability of the fabric and has strong fabric adhesion; the anti-corrosion coating is applied to the upper base layer fabric, which also improves the durability of the fabric;

[0017] By bonding the fabrics together without adding any additional adhesives, the overall weight of the garment can be reduced. Carving and adding materials can be performed while taking the thickness of the fabric into consideration. The activated carbon particles can effectively adsorb toxic vapors and remain stably in position during the wearer's movement and friction, thereby achieving continuous protection. Furthermore, the garment is not likely to fall off during large-scale movements, making the fabric smoother and more comfortable to wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the explosion structure of the utility model;

[0021] Figure 4 It is a structural diagram of the lower base layer of the utility model;

[0022] In the figure: 1. Base layer; 101. Upper base layer; 102. Lower base layer; 103. Epoxy resin anti-corrosion coating; 104. PU waterproof and breathable membrane; 2. Functional layer; 201. Carbon nanofiber membrane; 202. Anti-tear layer; 203. Thermal insulation layer; 204. Corrosion-resistant layer. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figures 1-4As shown, a new type of composite breathable anti-virus fabric includes a base layer 1 and a functional layer 2. The functional layer 2 is a carbon nanofiber membrane 201 and spherical carbon particles. The base layer 1 is divided into an upper base layer 101 and a lower base layer 102. The fabric of the upper base layer 101 is one of cotton cloth, polyester cloth, acrylic cloth, nylon cloth, aramid cloth, viscose cloth or polyacrylonitrile pre-oxidized silk cloth. The upper base layer 101 is divided into two sides. One side is coated with an epoxy resin anti-corrosion coating 103. The gram weight of the upper base layer 101 fabric is 20-200g / m 2 , coating weight is 10-100g / m 2 The lower base layer 102 is one of a woven fabric of cotton and high-strength polyester, a woven fabric of cotton and spandex, a woven fabric of cotton and nylon, a woven fabric of viscose and nylon, a woven fabric of viscose and spandex, and a woven fabric of viscose and high-strength polyester. The weight of the lower base layer 102 is 50-500g / m 2 The other side of the upper base layer 101 is the receiving side. The electrospinning spray PU waterproof and breathable membrane 104 is formed on the other side of the upper base layer 101 to form the entire upper base layer 101. A certain proportion of regular hexagons are planned on one side of the upper base layer 101. The gram weight of the PU waterproof and breathable membrane 104 is 1-10g / m 2 The weight of the upper base layer 101 is 30-400g / m 2 The lower base layer 102 is laser-carved with a regular hexagonal pattern of a certain thickness according to the proportion, and the spherical carbon is placed in the hexagonal pattern. This surface is the receiving surface of the lower base layer 102, forming the entire lower base layer 102. Among them, the side length of the regular hexagon is 1cm-2cm, the thickness of the regular hexagon is 0.5mm-1mm, the thickness of the lower base layer 102 is 1-2mm, and the weight of the lower base layer 102 is 100-400g / m 2 The receiving surface of the upper base layer 101 is fitted to the receiving surface of the lower base layer 102, and then bonded together by ultrasonic welding according to the pre-planned shape. The distribution of the welding points is point-like, forming a regular hexagonal pattern in the middle, where the side length of the hexagon is 1-2 cm, and 3-8 points are distributed on each side. After bonding, curing treatment is carried out.

[0025] The diameter of the PU nanofiber membrane in functional layer 2 is 100-500nm, and the size of the spherical carbon particles is 0.2-0.6mm. The laser engraving process parameters are: laser power of 15%-40%, processing speed of 300-500mm / s, and engraving depth of 0.2-0.6mm. The ultrasonic welding process parameters are: amplitude of 30%-100%, welding time of 0.1-1.5s, welding frequency of 15kHz, and welding pressure of 1-7bar.

[0026] Functional layer 2 also includes a tear-resistant layer 202, a thermal insulation layer 203, and a corrosion-resistant layer 204. The thermal insulation layer 203 is fixedly mounted on the carbon nanofiber membrane 201, and the corrosion-resistant layer 204 is fixedly connected to the thermal insulation layer 203. The tear-resistant layer 202 is disposed between the corrosion-resistant layer 204 and the thermal insulation layer 203. The tear-resistant layer 202 is composed of interwoven and interwoven tensile-resistant threads. The thermal insulation layer 203 is made of ceramic fiber, and the corrosion-resistant layer 204 is made of polyester fiber. Functional layer 2 integrates multiple protections into one, with the tear-resistant layer 202, thermal insulation layer 203, and corrosion-resistant layer 204 working together to exhibit excellent performance. The thermal insulation layer 203 is firmly embedded in the carbon nanofiber membrane 201, effectively isolating heat transfer. The corrosion-resistant layer 204 is tightly connected to the thermal insulation layer 203, which can resist erosion by various corrosive substances. The tear-resistant layer 202, interwoven between the corrosion-resistant layer 204 and the thermal insulation layer 203, is composed of high-strength, tensile-resistant yarns, significantly enhancing the overall tear resistance. Furthermore, the ceramic fiber thermal insulation layer 203 and the polyester fiber corrosion-resistant layer 204 further enhance the fabric's overall durability and stability.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A novel composite breathable anti-virus fabric, comprising a base layer (1) and a functional layer (2), characterized in that: The functional layer (2) comprises a carbon nanofiber membrane (201), and the base layer (1) is divided into an upper base layer (101) and a lower base layer (102), one side of the upper base layer (101) is coated with an epoxy resin anti-corrosion coating (103), and the other side of the upper base layer (101) is electrostatically spun and sprayed with a PU waterproof and breathable membrane (104), and the lower base layer (102) is laser-engraved with a regular hexagonal pattern, and spherical carbon particles are placed in the regular hexagonal pattern, and the upper base layer (101) and the lower base layer (102) are bonded to each other by ultrasonic welding.

2. The novel composite breathable anti-virus fabric according to claim 1, characterized in that: The upper base fabric (101) is one of cotton, polyester, acrylic, nylon, aramid, viscose or polyacrylonitrile pre-oxidized silk.

3. The novel composite breathable anti-virus fabric according to claim 1, characterized in that: The lower base layer (102) is one of a woven fabric of cotton and high-strength polyester, a woven fabric of cotton and spandex, a woven fabric of cotton and nylon, a woven fabric of viscose and nylon, a woven fabric of viscose and spandex, and a woven fabric of viscose and high-strength polyester.

4. The novel composite breathable anti-virus fabric according to claim 1, characterized in that: The length of the side of the regular hexagonal pattern is 1 cm to 2 cm, and 3 to 8 points are distributed on each side, and the pattern is in a solidified state after bonding.

5. The novel composite breathable anti-virus fabric according to claim 1, characterized in that: The functional layer (2) further comprises a tear-proof layer (202), a heat-insulating layer (203) and a corrosion-resistant layer (204); the heat-insulating layer (203) is fixedly arranged on the carbon nanofiber membrane (201); the corrosion-resistant layer (204) is fixedly connected to the heat-insulating layer (203); and the tear-proof layer (202) is arranged between the corrosion-resistant layer (204) and the heat-insulating layer (203).

6. The novel composite breathable anti-virus fabric according to claim 5, characterized in that: The tear-proof layer (202) is composed of interwoven and interwoven tensile-resistant threads.

7. The novel composite breathable anti-virus fabric according to claim 5, characterized in that: The heat insulation layer (203) is made of ceramic fiber material.

8. The novel composite breathable anti-virus fabric according to claim 5, characterized in that: The corrosion-resistant layer (204) is made of polyester fiber.

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