Anti-electricity and anti-cutting clothing fabric as well as preparation method and application thereof

Abstract

The invention provides an anti-electricity and anti-cutting clothing fabric and a preparation method and application thereof.The fabric comprises a functional layer, a guarantee layer and a comfortable layer which are connected through flame-retardant sewing threads from outside to inside, the functional layer is a double-layer binding woven fabric composed of aramid fibers and conductive metal fibers, the surface layer is a pure aramid plain weave, and the surface layer is an anti-electricity and anti-cutting clothing fabric. The inner layer is a plain weave formed by interweaving wrapped yarns of aramid fibers and conductive metal fibers and aramid staple fiber yarns, and the warp and weft density of the inner layer is lower than that of the surface layer; the guarantee layer comprises an insulating layer and an anti-cutting layer, the insulating layer is of a composite structure formed by coating two sides of polyamide base cloth with polyvinyl chloride, and the anti-cutting layer is a plain woven fabric formed by blending aramid fibers and stainless steel fibers; and the comfortable layer is a plain weave fabric formed by blending meta-position aramid fibers and flame-retardant viscose fibers. The anti-cutting and anti-electricity composite fabric has good anti-electricity performance and anti-cutting performance, and is light and comfortable at the same time.

Description

Technical Field

[0001] This invention relates to the field of personal protective equipment technology, specifically to a fabric that provides both protection against electric arc shock and cuts, its preparation method, and an anti-electric shock and cut-resistant garment made from the fabric. Background Technology

[0002] In modern military operations, law enforcement duties, and certain industrial work, personnel may face the dual threat of electric shock weapons and sharp objects simultaneously. For example, there have been reports of non-lethal electric shock weapons being used in some border conflicts. Traditional protective equipment is usually single-function; for instance, cut-resistant clothing focuses primarily on protection against mechanical cuts and slashing, while insulating or arc-resistant clothing focuses on electrical insulation. To protect against both threats simultaneously, combat personnel often need to wear multiple layers of equipment, which not only significantly increases overall weight and limits mobility but also impacts mission effectiveness.

[0003] Existing technologies have also reported attempts to develop multifunctional protective fabrics. For example, some schemes use metal wires woven into the fabric to conduct current and achieve arc protection. However, a high proportion of metal fibers often significantly increases the fabric's rigidity and weight, weakening its fatigue resistance and wearing comfort. Furthermore, the introduction of metal fibers may affect the fabric's structural tightness, thus reducing its cut resistance. Conversely, fabrics that excessively pursue high-density weaving to achieve excellent cut resistance may have poor conductive pathways, hindering the rapid dissipation of arc energy. This interplay between functions constitutes a bottleneck in the development of anti-electric and cut-resistant fabrics.

[0004] Furthermore, existing multi-layer composite fabrics mostly use simple lamination or bonding methods to connect the layers, which are prone to delamination after impact or repeated bending, affecting the stability and durability of the protective effect. Therefore, there is an urgent need for a fabric that can provide multiple functions such as electric shock and cut resistance, lightweight and durability. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a fabric that is resistant to electric shock and cuts.

[0006] To achieve the above objectives, the technical solution provided by the present invention is as follows.

[0007] In a first aspect, the present invention provides an anti-electric and cut-resistant clothing fabric, wherein the fabric comprises a functional layer, a protective layer, and a comfort layer connected from the outside to the inside by flame-retardant stitching, wherein: The functional layer is a double-layered bonded woven fabric composed of aramid fibers and conductive metal fibers. Its outer layer is a pure aramid plain weave, and the inner layer is a plain weave formed by interlacing aramid fibers and conductive metal fibers with aramid staple fibers. The warp and weft density of the inner layer is lower than that of the outer layer, forming a conductive leakage structure. The protective layer includes an insulation layer and a cut-resistant layer. The insulation layer is a composite structure of polyamide-based fabric coated with polyvinyl chloride on both sides, and the cut-resistant layer is a plain weave woven fabric made of aramid fiber and stainless steel fiber. The comfort layer is a plain weave fabric made of a blend of meta-aramid and flame-retardant viscose fiber.

[0008] As a preferred technical solution, the conductive metal fiber in the functional layer is copper wire, the ratio of the wrapping yarn to the aramid staple fiber yarn in the inner layer is 1:1, and the mass percentage of copper wire in the functional layer is 15%~25%.

[0009] As a preferred technical solution, the areal density of the functional layer is 280~320 g / m². 2 The surface layer has a warp and weft density of 200-230 threads / 10cm, while the inner layer has a warp and weft density of 170-200 threads / 10cm.

[0010] As a preferred technical solution, the double-layer spliced ​​woven fabric adopts a plain weave inner warp splicing method, and the splicing point is hidden between the inner aramid short fiber yarns.

[0011] As a preferred technical solution, the blending ratio of aramid fiber and stainless steel fiber in the anti-cut layer is 45:55 to 55:45, with a warp density of 220-260 threads / 10cm and a weft density of 190-220 threads / 10cm.

[0012] As a preferred technical solution, before blending, the stainless steel fibers are first treated with a 3-5% sodium hydroxide solution at 60-80°C for 5-10 minutes to remove surface oil stains. After washing with water, they are then treated with a 5-8% citric acid solution at 40-50°C for 3-5 minutes for surface activation. Finally, they are washed with water until neutral and dried.

[0013] As a preferred technical solution, the polyvinyl chloride coating comprises the following components in parts by weight: 100 parts of polyvinyl chloride resin, 10-20 parts of flame retardant plasticizer, 5-10 parts of antimony trioxide, and 2-5 parts of heat stabilizer.

[0014] As a preferred technical solution, the method for preparing the polyvinyl chloride coating includes mixing and plasticizing polyvinyl chloride resin, flame retardant plasticizer, antimony trioxide and heat stabilizer at 160~180°C to obtain coating adhesive, and then applying it to both sides of the polyamide base fabric by scraping.

[0015] Secondly, the present invention provides a method for preparing an anti-electric and cut-resistant clothing fabric with any of the above-mentioned technical features, characterized by comprising the following steps: S100. A double-layer bonded woven fabric of the functional layer is prepared using a weaving process, wherein the warp and weft yarns of the outer layer are both made of meta-aramid staple fiber yarn, and the warp and weft yarns of the inner layer are made of para-aramid filament and copper wire wrapped yarn; a plain weave warp bonding method is used to bond the inner and outer layers, the weaving tension is controlled at 0.4~0.6 cN / dtex, and the bonding point density is controlled at 18~22 points / cm. 2 ; S200: Polyvinyl chloride coating is applied to both sides of polyamide base fabric through a hot-pressing composite process. The hot-pressing temperature is 170~200℃, the pressure is 0.6~0.8 MPa, and the time is 25~35 s. Aramid fiber and stainless steel fiber are blended into yarn through a spinning process, and the twist is controlled at 750~850 twists / meter. Then, plain weave fabric is made through a weaving process. S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with the twist controlled at 700~800 twists / meter, and then making it into plain woven fabric through a weaving process. S400: The functional layer fabric obtained in step S100, the protective layer fabric obtained in step S200, and the comfort layer fabric obtained in step S300 are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 3~5 mm and the stitch density is 4~6 stitches / cm.

[0016] Thirdly, the present invention provides a protective garment made of a fabric having any one of the above-described anti-electric and anti-cut fabrics.

[0017] The advantages and beneficial effects of this invention are as follows: the fabric adopts a three-layer composite structure of functional layer, protective layer and comfort layer, which is connected by flame-retardant stitching to reduce the problem of easy delamination in traditional lamination process; the functional layer adopts a double-layer bonded woven fabric design, the outer layer is a high-density aramid plain weave, which provides an excellent cut-resistant foundation; the inner layer introduces conductive metal fibers and weaves them at a low density to form an efficient conductive discharge channel, which can quickly dissipate current when encountering electric arc, thereby effectively preventing electric shock injury.

[0018] The protective layer consists of an insulation layer and a cut-resistant layer. The insulation layer is a composite structure of polyamide-based fabric coated with polyvinyl chloride on both sides. The polyvinyl chloride coating contains flame retardant plasticizers and antimony trioxide, giving it good insulation and flame retardancy. The cut-resistant layer is made by blending aramid fibers with stainless steel fibers, which improves its cut resistance and toughness. The stainless steel fibers undergo alkali washing and acid activation treatment before blending to enhance the interfacial bonding between the fibers and aramid.

[0019] The comfort layer is made of a blend of meta-aramid and flame-retardant viscose fiber, which ensures both close-fitting comfort and flame-retardant properties. The overall fabric maintains good breathability and flexibility under multiple layers of protection. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the functional layer structure shown in this invention; Figure 2 This is a schematic diagram of the insulating layer structure shown in this invention; Figure 3 This is a schematic diagram of the anti-cut layer structure shown in this invention; Figure 4 This is a schematic diagram of the comfort layer structure of the present invention; Figure 5 This is a photograph of the front of the fabric of this invention; Figure 6 This is a photograph of the reverse side of the fabric of this invention. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0022] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0023] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly or implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0024] In modern military, law enforcement, and industrial operations, personnel often face the dual threats of electric shock weapons and sharp object cuts. Traditional protective clothing is often single-function; for example, cut-resistant clothing focuses on mechanical protection, while arc flash protection clothing emphasizes insulation. To protect against both hazards simultaneously, workers must wear multiple layers of equipment, resulting in bulky, inflexible clothing that severely impacts operational efficiency and comfort. While existing technologies have attempted to incorporate metal wires into fabrics to conduct current, a high proportion of metal fibers increases fabric rigidity and weight, weakening fatigue resistance and potentially affecting the fabric's structural tightness, thus reducing cut resistance. Conversely, high-density woven cut-resistant fabrics may obstruct electrical conduction, hindering the rapid dissipation of arc energy. This functional conflict becomes a bottleneck in developing multifunctional protective fabrics. Furthermore, traditional multi-layered fabrics, often using lamination or bonding, are prone to delamination after impact or bending, affecting the stability and durability of the protective effect.

[0025] The fabric of this invention employs a three-layer composite structure, consisting of a functional layer, a protective layer, and a comfort layer from the outside in, connected by flame-retardant stitching. This design avoids the delamination problems of traditional lamination processes, enhancing the bonding strength and overall toughness between layers. The functional layer directly faces external threats, providing basic cut resistance while enabling rapid dissipation of arc current. The functional layer is made of a double-layer bonded woven fabric composed of aramid fibers and conductive metal fibers. The outer layer is a pure aramid plain weave, while the inner layer is a plain weave formed by interlacing aramid fibers and conductive metal fibers with aramid staple yarns. The warp and weft density of the inner layer is lower than that of the outer layer. This structure gives the outer layer high density and excellent mechanical strength, effectively resisting punctures from sharp objects; while the inner layer, through its lower density and the introduction of conductive fibers, forms a highly efficient conductive discharge channel. When an arc occurs, the current can rapidly diffuse through the conductive network of the inner layer, preventing localized high temperatures and electric shock injuries.

[0026] The protective layer, located within the functional layers, comprises an insulation layer and a cut-resistant layer. The insulation layer is a composite structure of polyamide-based fabric double-coated with polyvinyl chloride (PVC). The PVC coating contains flame-retardant plasticizers, antimony trioxide, and heat stabilizers, giving it excellent insulation and flame retardancy. The polyamide base fabric provides flexibility and support, while the double-sided PVC coating ensures comprehensive electrical insulation protection, preventing current penetration into the inner layers. The cut-resistant layer is a plain-weave woven fabric blended with aramid and stainless steel fibers. The aramid fibers provide strength and toughness, while the stainless steel fibers enhance cut resistance and durability. The stainless steel fibers may optionally undergo alkaline washing and acid activation treatment before blending to remove surface oils and activate the fiber surface, enhancing the interfacial bonding with the aramid.

[0027] The comfort layer, as the innermost layer, comes into direct contact with the skin, providing wearing comfort and additional flame-retardant protection. It is made of a plain-weave fabric blended from meta-aramid and flame-retardant viscose fibers. Meta-aramid possesses heat-resistant and flame-retardant properties, while flame-retardant viscose improves moisture absorption and softness; the blend ensures both comfort and breathability while maintaining flame-retardant performance.

[0028] It is worth noting that, considering the functional layer's obstruction of the quilting connection in the three-layer structure, the quilting only penetrates the outer and comfort layers of the functional layer, while the inner and protective layers are completely enclosed. The outer layer of the functional layer is preferably made of meta-aramid, while the inner layer can use para-aramid, which has higher strength. Based on the above, the edge of the outer layer of the functional layer should extend 5-8 mm beyond the edge of the inner layer, and the flame-retardant thread can be para-aramid. The quilting can use tungsten carbide needles with a diamond coating. These needles have a conical hollow tip with an inner diameter of 0.15-0.2 mm and an outer diameter of 0.4 mm. A micro resistance wire is built into the needle cavity, connected to a power source to maintain the needle tip temperature at 150-180°C. During quilting, the meta-aramid melts slightly around the needle hole, solidifies upon cooling, and thus achieves the quilting connection. Furthermore, in the context described in this invention, cut resistance refers to protection against cutting, chopping, scraping, and other actions by sharp objects such as blades, and in particular, this invention is not intended to resist needle penetration.

[0029] In this invention, the high-density aramid fiber outer layer of the functional layer ensures cut resistance, while the low-density conductive structure of the inner layer allows for current dissipation. This "dense on the outside, sparse on the inside" structure avoids excessive metal fibers from affecting cut resistance while ensuring the effectiveness of the conductive path. The protective layer provides double protection: the insulating layer blocks current, and the cut-resistant layer strengthens mechanical protection. The comfort layer is designed with ergonomics in mind to enhance the wearing experience. Furthermore, the entire fabric layer is connected by flame-retardant quilting, enhancing structural integrity and durability and preventing delamination.

[0030] The anti-electric shock mechanism of the functional layer is based on a continuous network of conductive metal fibers. When an electric arc strikes the fabric surface, the current is rapidly dispersed over a larger area through the conductive fibers of the inner layer, reducing the current density and thus preventing localized overheating or breakdown. The inner layer has a lower warp and weft density than the outer layer, creating more pores and channels to facilitate lateral current diffusion while reducing weight and rigidity. The cut resistance mechanism relies in part on the strength and modulus of the aramid fibers, as well as the high-density structure of the fabric. The molecular chain orientation and hydrogen bond network of the aramid fibers enable them to effectively absorb and disperse impact energy, preventing penetration by sharp objects. In the protective layer, the PVC coating relies on the non-conductive nature of its polymer structure as the final guarantee of insulation, while antimony trioxide acts as a flame retardant synergist, forming a barrier layer at high temperatures to inhibit combustion. The stainless steel fibers in the cut-resistant layer work together with the aramid fibers to resist cuts.

[0031] In terms of manufacturing process, this invention employs a step-by-step method to prepare each layer, which is then integrated via quilting. The weaving of the functional layers requires control of parameters such as tension and knot density to ensure the stability and functionality of the double-layer structure. The insulating layer of the protective layer combines the PVC coating with the polyamide base fabric through hot-pressing, while the cut-resistant layer optimizes the fiber interface through blending and weaving. The spinning and weaving of the comfort layer emphasizes twist and density control to balance strength and comfort.

[0032] The fabric of this invention has broad application prospects, including but not limited to the manufacture of protective clothing, such as military and police combat uniforms, and industrial work clothes. Its multiple protective properties give it a significant advantage in high-risk environments, while its lightweight and comfortable design improves wearer acceptance and work efficiency.

[0033] In some embodiments, the mass percentage of conductive metal fibers in the functional layer is 15% to 25%. The introduction of conductive metal fibers is to provide an efficient current dissipation channel. However, excessive metal content will significantly increase the rigidity and weight of the fabric, affecting flexibility and wearing comfort. If the conductive fiber content is too low, the conductive network may be discontinuous, causing the arc current to not dissipate quickly, increasing the risk of electric shock. Conversely, if the metal content is higher than 25%, the weight and rigidity of the fabric will increase significantly, affecting wearing comfort. It may also interfere with the tight structure of the aramid fabric due to excessive metal fibers, reducing the cut protection level. When the mass percentage of copper wire is controlled at 15% to 25%, such as 18%, 20%, or 22%, the fabric can maintain a low areal density while achieving an arc protection efficiency of over 90%, and the cut protection performance meets NIJ standards.

[0034] In some embodiments, the areal density of the functional layer is set to 280~320 g / m². 2 If the surface density is less than 280 g / m³ 2 For example, 250 g / m 2 Although the fabric is lighter and thinner, it is difficult to effectively resist high-intensity cuts; at the same time, the durability of the conductive layer may decrease due to the material being too thin. If the areal density is higher than 320 g / m²... 2 For example, 350 g / m 2 The fabric would be too thick, restricting human movement and increasing costs.

[0035] In some embodiments, the warp and weft density of the outer layer of the functional layer is 200-230 threads / 10cm, and the warp and weft density of the inner layer is 170-200 threads / 10cm. The high density of the outer layer ensures cut resistance, while the low density of the inner layer promotes conductivity. If the outer layer density is too low, the fabric is easily penetrated; if it is too high, rigidity increases, and it may inhibit the formation of conductive pathways in the inner layer. If the inner layer density is too low, the fabric structure is loose; if it is too high, conductive porosity decreases, which is not conducive to current diffusion.

[0036] In some embodiments, the double-layered bonded fabric employs a plain weave warp-to-back bonding method, with the bonding points hidden between the inner aramid staple yarns. This bonding method ensures the stability of the double-layered structure while preventing exposed bonding points from affecting surface smoothness or conductivity. The bonding point density is controlled at 18-22 points / cm². 2 It also takes into account the continuity of conductive fibers.

[0037] In some embodiments, the blending ratio of aramid fiber to stainless steel fiber in the cut-resistant layer is 45:55 to 55:45. A higher proportion of aramid results in good toughness but insufficient cut resistance; a higher proportion of stainless steel makes the fabric too stiff, affecting comfort and bending performance.

[0038] In some embodiments, the warp density of the cut-resistant layer is 220-260 threads / 10cm, and the weft density is 190-220 threads / 10cm. The weft density must match the warp density to ensure the isotropic nature of the fabric.

[0039] In some embodiments, the stainless steel fibers require surface treatment before blending: first, they are treated with a 3-5% sodium hydroxide solution at 60-80°C for 5-10 minutes to remove oil stains, and then activated with a 5-8% citric acid solution at 40-50°C for 3-5 minutes. Strict care should be taken to avoid corrosion of the stainless steel fibers during the alkaline washing and acid washing processes.

[0040] In some embodiments, the polyvinyl chloride coating comprises 100 parts of polyvinyl chloride resin, 10-20 parts of flame retardant plasticizer, 5-10 parts of antimony trioxide, and 2-5 parts of heat stabilizer. If the amount of flame retardant plasticizer is too low, the coating will lack flexibility and be prone to cracking; if it is too high, the flame retardant effect will be diluted.

[0041] Optionally, flame retardant plasticizers include, but are not limited to, one of the following: triphenyl phosphate, diphenyl isooctyl phosphate, diphenyl isopropyl phosphate, trichloroethyl phosphate, chlorinated paraffin, and tributyl citrate.

[0042] In some embodiments, the weaving tension of the functional layer is controlled at 0.4~0.6 cN / dtex. The hot-pressing composite temperature of the protective layer is 170~200℃, the pressure is 0.6~0.8 MPa, and the time is 25~35 s. If the temperature is below 170℃ or the time is less than 25 s, the coating will not be fully plasticized and the adhesion will be poor; if the temperature is above 200℃ or the time is longer than 35 s, the base fabric may degrade.

[0043] In some embodiments, the twist of the comfort layer yarn is controlled at 700-800 twists / meter, the quilting stitch length is 3-5 mm, and the stitch density is 4-6 stitches / cm to ensure a firm connection without affecting flexibility.

[0044] [Example 1] This embodiment provides a method for preparing an anti-electric and cut-resistant clothing fabric, the specific steps of which are as follows: S100. A double-layered bonded woven fabric is prepared using a weaving process. The outer layer consists of meta-aramid staple yarns for both warp and weft, while the inner layer consists of para-aramid filaments wrapped with copper wire (copper wire weight percentage 15%), with a 1:1 ratio of wrapped yarn to aramid staple yarn. A plain weave warp-bonding method is used, with the bond points hidden between the inner aramid staple yarns. The weaving tension is controlled at 0.4 cN / dtex, and the bond density is 18 points / cm. 2 The functional density is 280 g / m³. 2 The surface layer has a warp and weft density of 200 warp and weft threads per 10cm, while the inner layer has a warp and weft density of 170 warp and weft threads per 10cm.

[0045] S200: The insulation layer is formed by applying a double-sided polyvinyl chloride coating to the polyamide base fabric using a hot-pressing composite process. The hot-pressing temperature is 170℃, the pressure is 0.6 MPa, and the time is 25 s. The cut-resistant layer is formed by spinning aramid fibers and stainless steel fibers in a 55:45 ratio to form yarn with a twist of 750 twists / meter, and then weaving it into a plain weave fabric with a warp density of 220 threads / 10cm and a weft density of 190 threads / 10cm.

[0046] S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with a twist of 700 twists / meter, and then weaving it into a plain weave fabric.

[0047] S400: The functional layer, protective layer (insulation layer and cut-resistant layer are stacked) and comfort layer are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 3 mm and the stitch density is 4 stitches / cm.

[0048] The fabric in this embodiment has an arc protection efficiency of over 85%; its cut resistance meets the NIJ Standard 0115.00 Level 2 standard; the comfort layer is soft and breathable, and the overall fabric is lightweight.

[0049] [Example 2] This embodiment provides a method for preparing an anti-electric and cut-resistant clothing fabric, the specific steps of which are as follows: S100. A double-layered bonded woven fabric is prepared using a weaving process. The outer layer consists of meta-aramid staple yarns for both warp and weft, while the inner layer consists of para-aramid filaments wrapped with copper wire (copper wire weight percentage 18%), with a 1:1 ratio of wrapped yarn to aramid staple yarn. A plain weave warp-bonding method is used, with the bond points hidden between the inner aramid staple yarns. The weaving tension is controlled at 0.5 cN / dtex, and the bond density is 20 bond points / cm. 2 The functional density is 290 g / m³. 2 The surface layer has a warp and weft density of 210 warp and weft threads per 10cm, while the inner layer has a warp and weft density of 180 warp and weft threads per 10cm.

[0050] S200: The insulation layer is formed by applying a polyvinyl chloride coating to both sides of the polyamide base fabric using a hot-pressing composite process. The hot-pressing temperature is 180℃, the pressure is 0.7 MPa, and the time is 30 s. The cut-resistant layer is formed by spinning aramid fibers and stainless steel fibers in a 50:50 ratio to form yarn with a twist of 800 twists / meter, and then weaving it into a plain weave fabric with a warp density of 230 threads / 10cm and a weft density of 200 threads / 10cm.

[0051] S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with a twist of 720 twists / meter, and then weaving it into a plain weave fabric.

[0052] S400: The functional layer, protective layer, and comfort layer are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 4 mm and the thread density is 5 stitches / cm.

[0053] In this embodiment, the fabric has an arc protection efficiency of over 88%; its cut resistance meets or exceeds the NIJ Standard 0115.00 Level 2 standard; the comfort layer is moisture-wicking and breathable, and the overall fabric is flexible.

[0054] [Example 3] This embodiment provides a method for preparing an anti-electric and cut-resistant clothing fabric, the specific steps of which are as follows: S100. A double-layered bonded woven fabric is prepared using a weaving process. The outer layer consists of meta-aramid staple yarns for both warp and weft, while the inner layer consists of para-aramid filaments wrapped with copper wire (copper wire weight percentage 20%), with a 1:1 ratio of wrapped yarn to aramid staple yarn. A plain weave warp-bonding method is used, with the bond points hidden between the inner aramid staple yarns. The weaving tension is controlled at 0.55 cN / dtex, and the bond density is 21 bond points / cm. 2 The functional density is 300 g / m³. 2 The surface layer has a warp and weft density of 220 warp and weft threads per 10cm, while the inner layer has a warp and weft density of 190 warp and weft threads per 10cm.

[0055] S200: The insulation layer is formed by applying a double-sided polyvinyl chloride coating to the polyamide base fabric using a hot-pressing composite process. The hot-pressing temperature is 190℃, the pressure is 0.75 MPa, and the time is 32 s. The cut-resistant layer is formed by spinning aramid fibers and stainless steel fibers in a 45:55 ratio to form yarn with a twist of 820 twists / meter, which is then woven into a plain weave fabric with a warp density of 240 threads / 10cm and a weft density of 210 threads / 10cm.

[0056] S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with a twist of 750 twists / meter, and then weaving it into a plain weave fabric.

[0057] S400: The functional layer, protective layer, and comfort layer are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 4.5 mm and the thread density is 5 stitches / cm.

[0058] In this embodiment, the fabric has an arc protection efficiency of over 90%; its cut resistance meets the NIJ Standard 0115.00 Level 3 standard; the fabric is lightweight overall, and the comfort layer is soft to the touch.

[0059] [Example 4] This embodiment provides a method for preparing an anti-electric and cut-resistant clothing fabric, the specific steps of which are as follows: S100. A double-layered bonded woven fabric is prepared using a weaving process. The outer layer consists of meta-aramid staple yarns for both warp and weft, while the inner layer consists of para-aramid filaments wrapped with copper wire (copper wire weight percentage 22%), with a 1:1 ratio between the wrapped yarn and the aramid staple yarn. A plain weave warp-bonding method is used, with the bond points hidden between the inner aramid staple yarns. The weaving tension is controlled at 0.6 cN / dtex, and the bond density is 22 bond points / cm. 2 The functional density is 310 g / m³. 2 The surface layer has a warp and weft density of 230 warp and weft threads per 10cm, while the inner layer has a warp and weft density of 200 warp and weft threads per 10cm.

[0060] S200: The insulation layer is formed by applying a polyvinyl chloride coating to both sides of the polyamide base fabric using a hot-pressing composite process. The hot-pressing temperature is 200℃, the pressure is 0.8 MPa, and the time is 35 s. The cut-resistant layer is formed by spinning aramid fibers and stainless steel fibers in a 55:45 ratio to form yarn with a twist of 850 twists / meter, and then weaving it into a plain weave fabric with a warp density of 260 threads / 10cm and a weft density of 220 threads / 10cm.

[0061] S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with a twist of 780 twists / meter, and then weaving it into a plain weave fabric.

[0062] S400: The functional layer, protective layer, and comfort layer are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 5 mm and the thread density is 6 stitches / cm.

[0063] In this embodiment, the fabric has an arc protection efficiency of over 92%; its cut resistance meets the NIJ Standard 0115.00 Level 3+ standard; the comfort layer has good moisture absorption and wicking properties; and the overall fabric is durable and comfortable.

[0064] [Example 5] This embodiment provides a method for preparing an anti-electric and cut-resistant clothing fabric, the specific steps of which are as follows: S100. A double-layered bonded woven fabric is prepared using a weaving process. The outer layer consists of meta-aramid staple yarns for both warp and weft, while the inner layer consists of para-aramid filaments wrapped with copper wire (copper wire weight percentage 25%), with a 1:1 ratio of wrapped yarn to aramid staple yarn. A plain weave warp-bonding method is used, with the bond points hidden between the inner aramid staple yarns. The weaving tension is controlled at 0.5 cN / dtex, and the bond density is 19 points / cm. 2 The functional density is 320 g / m³. 2 The surface layer has a warp and weft density of 215 threads / 10cm, and the inner layer has a warp and weft density of 185 threads / 10cm.

[0065] S200: The insulation layer is formed by applying a polyvinyl chloride coating to both sides of the polyamide base fabric using a hot-pressing composite process. The hot-pressing temperature is 175℃, the pressure is 0.65 MPa, and the time is 28 s. The cut-resistant layer is formed by spinning aramid fibers and stainless steel fibers in a 50:50 ratio to form yarn with a twist of 780 twists / meter, and then weaving it into a plain weave fabric with a warp density of 250 threads / 10cm and a weft density of 205 threads / 10cm.

[0066] S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with a twist of 760 twists / meter, and then weaving it into a plain weave fabric.

[0067] S400: The functional layer, protective layer, and comfort layer are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 3.5 mm and the thread density is 4.5 stitches / cm.

[0068] In this embodiment, the fabric has an arc protection efficiency of over 87%; its cut resistance meets the NIJ Standard 0115.00 Level 2 standard; the comfort layer is soft and close-fitting, and the overall fabric has good breathability.

[0069] [Example 6] This embodiment provides a method for preparing an anti-electric and cut-resistant clothing fabric, the specific steps of which are as follows: S100. A double-layered bonded woven fabric is prepared using a weaving process. The outer layer consists of meta-aramid staple yarns for both warp and weft, while the inner layer consists of para-aramid filaments wrapped with copper wire (copper wire weight percentage 16%), with a 1:1 ratio of wrapped yarn to aramid staple yarn. A plain weave warp-bonding method is used, with the bond points hidden between the inner aramid staple yarns. The weaving tension is controlled at 0.45 cN / dtex, and the bond density is 18 points / cm. 2 The functional density is 285 g / m³. 2 The surface layer has a warp and weft density of 205 threads / 10cm, and the inner layer has a warp and weft density of 175 threads / 10cm.

[0070] The S200 insulation layer is achieved by hot-pressing a double-sided polyvinyl chloride coating onto a polyamide base fabric. The hot-pressing temperature is 170℃, the pressure is 0.6 MPa, and the time is 25 s. Before blending, the stainless steel fibers used in the cut-resistant layer are treated with a 3% sodium hydroxide solution at 60℃ for 5 minutes to remove surface oil. After washing, they are treated with a 5% citric acid solution at 40℃ for 3 minutes for surface activation. Finally, they are washed to neutral and dried. Aramid fibers and the treated stainless steel fibers are then blended into yarn at a ratio of 45:55 using a spinning process, with a twist of 750 twists / meter. This yarn is then woven into a plain weave fabric with a warp density of 220 ends / 10cm and a weft density of 190 ends / 10cm.

[0071] S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with a twist of 700 twists / meter, and then weaving it into a plain weave fabric.

[0072] S400: The functional layer, protective layer, and comfort layer are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 3 mm and the thread density is 4 stitches / cm.

[0073] In this embodiment, the fabric has an arc protection efficiency of over 89%; its cut resistance is significantly improved, meeting the NIJ Standard 0115.00 Level 3 standard; and the comfort layer is breathable and soft.

[0074] [Example 7] This embodiment provides a method for preparing an anti-electric and cut-resistant clothing fabric, the specific steps of which are as follows: S100. A double-layered bonded woven fabric is prepared using a weaving process. The outer layer consists of meta-aramid staple yarns for both warp and weft, while the inner layer consists of para-aramid filaments wrapped with copper wire (copper wire weight percentage 19%), with a 1:1 ratio of wrapped yarn to aramid staple yarn. A plain weave warp-bonding method is used, with the bond points hidden between the inner aramid staple yarns. The weaving tension is controlled at 0.5 cN / dtex, and the bond density is 20 bond points / cm. 2 The functional density is 295 g / m³. 2 The surface layer has a warp and weft density of 210 warp and weft threads per 10cm, while the inner layer has a warp and weft density of 180 warp and weft threads per 10cm.

[0075] S200, the polyvinyl chloride coating used in the insulation layer comprises the following components by weight: 100 parts polyvinyl chloride resin, 10 parts flame retardant plasticizer, 5 parts antimony trioxide, and 2 parts heat stabilizer. The above components are mixed and plasticized at 160°C to obtain a coating adhesive, which is then applied to both sides of the polyamide base fabric by scraping, followed by hot-pressing lamination at 180°C, 0.7 MPa, and 30 s. The cut-resistant layer is produced by spinning aramid fibers and stainless steel fibers in a 50:50 ratio, with a twist of 800 twists / meter, and then weaving it into a plain weave fabric with a warp density of 230 threads / 10cm and a weft density of 200 threads / 10cm.

[0076] S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with a twist of 720 twists / meter, and then weaving it into a plain weave fabric.

[0077] S400: The functional layer, protective layer, and comfort layer are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 4 mm and the thread density is 5 stitches / cm.

[0078] In this embodiment, the fabric has an arc protection efficiency of over 91%; its cut resistance meets the NIJ Standard 0115.00 Level 3 standard; the insulation layer has good flame retardancy; and the comfort layer is skin-friendly and breathable.

[0079] [Example 8] This embodiment provides a method for preparing an anti-electric and cut-resistant clothing fabric, the specific steps of which are as follows: S100. A double-layered bonded woven fabric is prepared using a weaving process. The outer layer consists of meta-aramid staple yarns for both warp and weft, while the inner layer consists of para-aramid filaments wrapped with copper wire (copper wire weight percentage 21%), with a 1:1 ratio of wrapped yarn to aramid staple yarn. A plain weave warp-bonding method is used, with the bond points hidden between the inner aramid staple yarns. The weaving tension is controlled at 0.55 cN / dtex, and the bond density is 21 bond points / cm. 2 The functional density is 305 g / m³. 2 The surface layer has a warp and weft density of 225 threads / 10cm, and the inner layer has a warp and weft density of 195 threads / 10cm.

[0080] S200, the polyvinyl chloride coating used in the insulation layer comprises the following components by weight: 100 parts polyvinyl chloride resin, 15 parts flame retardant plasticizer, 7 parts antimony trioxide, and 3 parts heat stabilizer. The above components are mixed and plasticized at 170°C to obtain a coating adhesive, which is then applied to both sides of the polyamide base fabric by scraping, followed by hot-pressing lamination at 190°C, 0.75 MPa, and 32 s. Before blending, the stainless steel fibers used in the cut-resistant layer are treated with a 4% sodium hydroxide solution at 70°C for 8 minutes to remove surface oil. After washing, they are treated with a 6% citric acid solution at 45°C for 4 minutes for surface activation, and finally washed until neutral and dried. Then, through a spinning process, aramid fibers and treated stainless steel fibers are blended into yarn at a ratio of 55:45, with a twist of 830 twists / meter. This yarn is then woven into a plain weave fabric with a warp density of 250 threads / 10cm and a weft density of 215 threads / 10cm.

[0081] S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with a twist of 770 twists / meter, and then weaving it into a plain weave fabric.

[0082] S400: The functional layer, protective layer, and comfort layer are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 4.5 mm and the thread density is 5.5 stitches / cm.

[0083] In this embodiment, the fabric has an arc protection efficiency of over 94%; its cut resistance meets the NIJ Standard 0115.00 Level 3+ standard; and the fabric is lightweight and flexible overall.

[0084] [Example 9] This embodiment provides a method for preparing an anti-electric and cut-resistant clothing fabric, the specific steps of which are as follows: S100. A double-layered bonded woven fabric is prepared using a weaving process. The outer layer consists of meta-aramid staple yarns for both warp and weft, while the inner layer consists of para-aramid filaments wrapped with copper wire (copper wire weight percentage 23%), with a 1:1 ratio of wrapped yarn to aramid staple yarn. A plain weave warp-bonding method is used, with the bond points hidden between the inner aramid staple yarns. The weaving tension is controlled at 0.6 cN / dtex, and the bond point density is 22 points / cm. 2 The functional density is 315 g / m³. 2 The surface layer has a warp and weft density of 230 warp and weft threads per 10cm, while the inner layer has a warp and weft density of 200 warp and weft threads per 10cm.

[0085] S200, the polyvinyl chloride coating used in the insulation layer comprises the following components by weight: 100 parts polyvinyl chloride resin, 20 parts flame retardant plasticizer, 10 parts antimony trioxide, and 5 parts heat stabilizer. The above components are mixed and plasticized at 180°C to obtain a coating adhesive, which is then applied to both sides of the polyamide base fabric by scraping, followed by hot-pressing lamination at 200°C, 0.8 MPa, and 35 s. Before blending, the stainless steel fibers used in the cut-resistant layer are treated with a 5% sodium hydroxide solution at 80°C for 10 minutes to remove surface oil. After washing, they are treated with an 8% citric acid solution at 50°C for 5 minutes for surface activation, and finally washed until neutral and dried. Then, through a spinning process, aramid fibers and treated stainless steel fibers are blended in a 50:50 ratio to form yarn with a twist of 850 twists / meter, which is then woven into a plain weave fabric with a warp density of 260 threads / 10cm and a weft density of 220 threads / 10cm.

[0086] S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with a twist of 800 twists / meter, and then weaving it into a plain weave fabric.

[0087] S400: The functional layer, protective layer, and comfort layer are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 5 mm and the thread density is 6 stitches / cm.

[0088] In this embodiment, the fabric has an arc protection efficiency of over 96%; its cut resistance meets the NIJ Standard 0115.00 Level 4 standard; the comfort layer is extremely soft, and the overall fabric provides comprehensive protection.

[0089] [Example 10] This embodiment provides a method for preparing an anti-electric and cut-resistant clothing fabric, the specific steps of which are as follows: S100. A double-layered bonded woven fabric is prepared using a weaving process. The outer layer consists of meta-aramid staple yarns for both warp and weft, while the inner layer consists of para-aramid filaments wrapped with copper wire (copper wire weight percentage 17%), with a 1:1 ratio of wrapped yarn to aramid staple yarn. A plain weave warp-bonding method is used, with the bond points hidden between the inner aramid staple yarns. The weaving tension is controlled at 0.4 cN / dtex, and the bond density is 18 points / cm. 2 The functional density is 290 g / m³. 2 The surface layer has a warp and weft density of 200 warp and weft threads per 10cm, while the inner layer has a warp and weft density of 170 warp and weft threads per 10cm.

[0090] S200, the polyvinyl chloride coating used in the insulation layer comprises the following components by weight: 100 parts polyvinyl chloride resin, 12 parts flame retardant plasticizer, 6 parts antimony trioxide, and 4 parts heat stabilizer. The above components are mixed and plasticized at 165°C to obtain a coating adhesive, which is then applied to both sides of the polyamide base fabric by scraping, followed by hot-pressing lamination at 175°C, 0.65 MPa, and 28 s. The cut-resistant layer is spun by blending aramid fibers and stainless steel fibers in a 48:52 ratio, with a twist of 760 twists / meter, and then woven into a plain weave fabric with a warp density of 235 threads / 10cm and a weft density of 195 threads / 10cm.

[0091] S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with a twist of 730 twists / meter, and then weaving it into a plain weave fabric.

[0092] S400: The functional layer, protective layer, and comfort layer are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 3.5 mm and the thread density is 4.5 stitches / cm.

[0093] In this embodiment, the fabric has an arc protection efficiency of over 88%; its cut resistance meets the NIJ Standard 0115.00 Level 2+ standard; the comfort layer has excellent breathability, and the overall fabric balances protection and comfort.

[0094] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A type of anti-electric shock and cut-resistant clothing fabric, characterized in that, The fabric, from the outside in, is connected by flame-retardant stitching and includes a functional layer, a protective layer, and a comfort layer, wherein: The functional layer is a double-layered bonded woven fabric composed of aramid fibers and conductive metal fibers. Its outer layer is a pure aramid plain weave, and the inner layer is a plain weave formed by interlacing aramid fibers and conductive metal fibers with aramid staple fiber yarns. The warp and weft density of the inner layer is lower than that of the outer layer. The protective layer includes an insulation layer and a cut-resistant layer. The insulation layer is a composite structure of polyamide-based fabric coated with polyvinyl chloride on both sides, and the cut-resistant layer is a plain weave woven fabric made of aramid fiber and stainless steel fiber. The comfort layer is a plain weave fabric made of a blend of meta-aramid and flame-retardant viscose fiber.

2. The anti-electric and anti-cut clothing fabric according to claim 1, characterized in that, The conductive metal fiber in the functional layer is copper wire, and the ratio of the wrapping yarn to the aramid staple fiber yarn in the inner layer is 1:

1. The mass percentage of copper wire in the functional layer is 15%~25%.

3. The anti-electric and anti-cut clothing fabric according to claim 2, characterized in that, The areal density of the functional layer is 280~320 g / m³ 2 The surface layer has a warp and weft density of 200-230 threads / 10cm, while the inner layer has a warp and weft density of 170-200 threads / 10cm.

4. The anti-electric and cut-resistant clothing fabric according to claim 1, characterized in that, The double-layered woven fabric uses a plain weave inner warp splicing method, and the splicing points are hidden between the inner aramid short fiber yarns.

5. The anti-electric and cut-resistant clothing fabric according to claim 4, characterized in that, The aramid fiber and stainless steel fiber blend ratio in the cut-resistant layer is 45:55 to 55:45, with a warp density of 220-260 threads / 10cm and a weft density of 190-220 threads / 10cm.

6. The anti-electric and cut-resistant clothing fabric according to claim 5, characterized in that, Before blending, the stainless steel fibers are treated with a 3-5% sodium hydroxide solution at 60-80°C for 5-10 minutes to remove surface oil. After washing with water, they are treated with a 5-8% citric acid solution at 40-50°C for 3-5 minutes for surface activation. Finally, they are washed with water until neutral and dried.

7. The anti-electric and anti-cut clothing fabric according to claim 1, characterized in that, The polyvinyl chloride coating comprises the following components in parts by weight: 100 parts polyvinyl chloride resin, 10-20 parts flame retardant plasticizer, 5-10 parts antimony trioxide, and 2-5 parts heat stabilizer.

8. The anti-electric and cut-resistant clothing fabric according to claim 7, characterized in that, The method for preparing the polyvinyl chloride coating includes mixing and plasticizing polyvinyl chloride resin, flame retardant plasticizer, antimony trioxide and heat stabilizer at 160~180°C to obtain coating adhesive, and then applying it to both sides of polyamide base fabric by scraping.

9. A method for preparing an anti-electric and cut-resistant clothing fabric as described in any one of claims 1 to 7, characterized in that, Includes the following steps: S100. A double-layer bonded woven fabric of the functional layer is prepared using a weaving process, wherein the warp and weft yarns of the outer layer are both made of meta-aramid staple fiber yarn, and the warp and weft yarns of the inner layer are made of para-aramid filament and copper wire wrapped yarn; a plain weave warp bonding method is used to bond the inner and outer layers, the weaving tension is controlled at 0.4~0.6 cN / dtex, and the bonding point density is controlled at 18~22 points / cm. 2 ; S200: Polyvinyl chloride coating is applied to both sides of polyamide base fabric through a hot-pressing composite process. The hot-pressing temperature is 170~200℃, the pressure is 0.6~0.8 MPa, and the time is 25~35 s. Aramid fiber and stainless steel fiber are blended into yarn through a spinning process, and the twist is controlled at 750~850 twists / meter. Then, plain weave fabric is made through a weaving process. S300 is made by blending meta-aramid and flame-retardant viscose fiber into yarn through a spinning process, with the twist controlled at 700~800 twists / meter, and then making it into plain woven fabric through a weaving process. S400: The functional layer fabric obtained in step S100, the protective layer fabric obtained in step S200, and the comfort layer fabric obtained in step S300 are stacked in sequence and connected by quilting with flame-retardant thread. The quilting stitch length is 3~5 mm and the stitch density is 4~6 stitches / cm.

10. A protective garment made of the anti-electric and anti-cut fabric as described in any one of claims 1-8.

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