A three-dimensional anti-arcing fabric structure

Abstract

The utility model discloses a three -dimensional anti -electric arc fabric structure, including surface layer organization, inner layer organization and interlayer joint, and fabric front is surface layer organization, and surface layer organization includes surface layer warp yarn and surface layer weft, and surface layer warp yarn and surface layer weft between one above and below interweave and form plain weave, and fabric reverse is inner layer organization, and inner layer organization includes inner layer warp yarn and inner layer weft, and inner layer warp yarn and inner layer weft between one above and below interweave and form plain weave, and inner layer warp yarn and surface layer weft interweave and form interlayer joint, and interlayer joint is arranged between surface layer organization and inner layer organization according to continuous hexagon structure, and the part of surface layer organization and inner layer organization between not connected forms an air heat insulation layer, and the air heat insulation layer is also continuous hexagon structure, and this structure fabric has excellent flame -retardant and anti -electric arc nature, and fabric hand feeling is soft, and the clothing made is good in wearing comfort.

Description

Technical Field

[0001] This utility model belongs to the field of flame-retardant fabric technology, specifically relating to a three-dimensional anti-arc fabric structure. Background Technology

[0002] An electric arc is a discharge phenomenon caused by the passage of electric current through an insulating medium (such as air), accompanied by the release of highly heated gas. The instantaneous high temperatures generated by an electric arc explosion can reach over 20,000 degrees Celsius, easily causing protective clothing to burn and resulting in direct or indirect thermal injuries to workers. Studies have shown that in electric arc accidents, if clothing is not ignited, the burn area is usually less than 25%, and the survival rate for those with burns less than 25% is greater than 90%. This indicates that wearing effective arc flash protection clothing can improve the survival rate of workers in accidents.

[0003] High-performance arc flash protection clothing is a crucial protective barrier for workers, and the development of arc flash protection fabric is the core of arc flash protection clothing development. Currently, arc flash protection fabrics on the market are typically single-layered. To improve the fabric's protective performance, the weight per unit area of ​​the fabric must be increased. However, this increased fabric area leads to increased weight on the wearer and decreased comfort. In hot summers, it can even increase the risk of heatstroke. It cannot be ruled out that some workers, taking a chance, may forgo wearing arc flash protection clothing for the sake of comfort and convenience, thus exposing themselves to a high-risk environment. Utility Model Content

[0004] To address the aforementioned problems and technical needs, this utility model provides a double-layer three-dimensional anti-arc fabric structure. This fabric has excellent flame retardancy and anti-arc properties, and is soft and fluffy to the touch, providing good wearing comfort.

[0005] The technical solution of this utility model is as follows: A three-dimensional arc-resistant fabric structure includes an outer layer, an inner layer, and interlayer knots. The front side of the fabric is the outer layer, which includes outer warp yarns and outer weft yarns, interwoven in an alternating up-and-down pattern to form a plain weave. The reverse side of the fabric is the inner layer, which includes inner warp yarns and inner weft yarns, interwoven in an alternating up-and-down pattern to form a plain weave. Interlayer knots are formed between the inner warp yarns and the outer weft yarns, arranged in a continuous hexagonal structure between the outer and inner layers. The unconnected portions between the outer and inner layers form an air insulation layer, which is also a continuous hexagonal structure. By setting interlayer knots, the inner and outer layers are connected, creating a three-layer protective structure consisting of an inner fabric, an air insulation layer, and an outer fabric. This improves the arc-heat protection performance and rupture threshold energy, resulting in higher safety. The air insulation layer can both insulate against heat and increase the breathability of the fabric, making it more comfortable to wear.

[0006] Furthermore, the yarn count ratio of the outer layer to the inner layer is 1:1, the fabric density ratio of the outer layer to the inner layer is 1:1, the warp density of both the outer layer and the inner layer is 110-130 yarns / inch, and the weft density of both the outer layer and the inner layer is 90-120 yarns / inch.

[0007] Furthermore, the count of the outer warp yarn, outer weft yarn, inner warp yarn, and inner weft yarn ranges from 40 to 50 s / 2, the twist of a single yarn is 900 to 1100 twists / m, and the twist of the ply yarn is 700 to 900 twists / m.

[0008] Furthermore, both the surface warp and weft yarns are blended from 40%-60% acrylonitrile, 20%-40% cellulose fiber, 5%-20% para-aramid fiber, and 2%-3% antistatic fiber, with the total mass percentage of each fiber component being 100%. The yarn used in the surface fabric is a blended yarn of acrylonitrile and other fibers. When subjected to the impact of electric arc energy, the fibers will expand and carbonize, thereby making the surface structure more compact and effectively resisting the inward penetration of the shock wave; this yarn composition has inherent flame-retardant properties.

[0009] Furthermore, both the inner layer warp and weft yarns are blended from 80%-93% meta-aramid, 5%-18% para-aramid, and 2%-3% antistatic fiber, with the total mass percentage of each fiber component being 100%. The yarn used in the inner layer fabric contains inherently flame-retardant fibers such as aramid, and the fabric made from this yarn has excellent flame-retardant properties. When the inner layer fibers are exposed to fire, they can quickly char without melting, thus avoiding secondary injury to the wearer.

[0010] Furthermore, the surface layer accounts for 50%-65% of the total weight of the fabric, and the overall weight per unit area of ​​the fabric is 250±10g / ㎡.

[0011] The beneficial effects of this utility model are as follows: This fabric forms a double-layer fabric structure by connecting the outer and inner layers through interlayer knots. Since the interlayer knots are set in a fixed shape, the unjoined parts of the fabric form several continuous hexagonal air insulation layers. From a protective perspective, this fabric has an outer protective layer, an air insulation layer, and an inner protective layer from the outside to the inside. Based on the same fabric unit area weight, it upgrades the single-layer protection of traditional arc-resistant fabrics to three layers of protection from the outside to the inside, which can increase the arc thermal protection performance (ATPV) and rupture threshold energy of the fabric, providing a higher level of safety protection for the wearer. The interlayer knots are woven from the yarns of the inner and outer layers, which does not require additional sewing and will not increase the weight of the fabric, avoiding the fabric from being too thick and heavy, making it lighter to wear. It can also avoid the use of coating, bonding and other processes to treat the fabric, allowing the fabric to retain its original breathability and enhancing wearing comfort. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the two-layer structure of the three-dimensional anti-arc fabric structure of this utility model; Markings in the diagram: 1-outer layer weft yarn, 2-outer layer warp yarn, 3-inner layer weft yarn, 4-inner layer warp yarn, 5-interlayer junction; Figure 2 This is a diagram of a single loop weaving structure for the three-dimensional anti-electric arc fabric of this utility model; (“■” indicates the warp weave point of the outer layer, “X” indicates the warp weave point of the inner layer, “□” indicates the weft weave point, “●” indicates the weave point where the inner layer warp yarn 3 intersects with the outer layer weft yarn 1, and “O” indicates that the outer layer warp yarn is lifted when the inner layer weft yarn 3 is woven in and does not participate in the inner layer interweaving). Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] like Figure 1-2 The diagram shows a three-dimensional anti-arc fabric structure of this utility model, including a surface layer, an inner layer, and interlayer knots 5. The front side of the fabric is the surface layer, which includes surface warp yarns 2 and surface weft yarns 1, interwoven in an alternating pattern to form a plain weave. The reverse side of the fabric is the inner layer, which includes inner warp yarns 4 and inner weft yarns 3, interwoven in an alternating pattern to form a plain weave. Interlayer knots 5 are formed by interweaving the inner warp yarns 4 and the surface weft yarns 3. The interlayer knots 5 are arranged in a continuous hexagonal structure between the surface layer and the inner layer. The unconnected portions between the surface layer and the inner layer form an air insulation layer, which is also a continuous hexagonal structure.

[0015] The yarn count ratio of the outer layer to the inner layer is 1:1, the fabric density ratio of the outer layer to the inner layer is 1:1, the warp density of both the outer and inner layers is 110-130 threads / inch, and the weft density of both the outer and inner layers is 90-120 threads / inch. The outer layer accounts for 50%-65% of the total fabric weight, and the overall fabric weight per unit area is 250±10g / ㎡.

[0016] The count of the outer warp yarn 2, outer weft yarn 1, inner warp yarn 4, and inner weft yarn 3 ranges from 40 to 50 s / 2, the twist of a single yarn is 900 to 1100 twists / m, and the twist of the ply yarn is 700 to 900 twists / m.

[0017] Both the surface warp yarn 2 and the surface weft yarn 1 are blended from 40%-60% acrylonitrile, 20%-40% cellulose fiber, 5%-20% para-aramid fiber, and 2%-3% antistatic fiber, with the total mass percentage of each fiber component being 100%. The yarn used in the surface fabric is a blended yarn of acrylonitrile and other fibers. When subjected to the impact of electric arc energy, the fibers will expand and carbonize, thereby making the surface structure more compact and effectively resisting the inward penetration of the shock wave; this yarn composition has inherent flame-retardant properties.

[0018] Both the inner layer warp yarn 4 and the inner layer weft yarn 3 are blended from 80%-93% meta-aramid, 5%-18% para-aramid, and 2%-3% antistatic fiber, with the sum of the mass percentages of each fiber component being 100%. The yarn used in the inner layer fabric contains inherently flame-retardant fibers such as aramid, and the fabric made from this yarn has excellent flame-retardant properties. When the inner layer fibers are exposed to fire, they can quickly char without melting, avoiding secondary injury to the wearer.

[0019] By setting interlayer junction 5, the inner and outer layers are connected together, forming a three-layer protective structure: an inner fabric, an air insulation layer, and an outer fabric. This improves arc heat protection performance and rupture threshold energy, resulting in higher safety. The air insulation layer not only provides heat insulation but also increases the fabric's breathability, enhancing wearing comfort.

[0020] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations and substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A three-dimensional anti-arc fabric structure, characterized in that: The fabric consists of a surface layer, an inner layer, and interlayer knots. The front side of the fabric is the surface layer, which includes surface warp and weft yarns that interweave in a plain weave. The reverse side of the fabric is the inner layer, which also includes inner warp and weft yarns that interweave in a plain weave. Interlayer knots are formed between the inner and surface warp yarns and are arranged in a continuous hexagonal structure. The unconnected portions between the surface and inner layers form an air insulation layer, which is also a continuous hexagonal structure.

2. The three-dimensional anti-arc fabric structure according to claim 1, characterized in that: The yarn count ratio of the outer layer to the inner layer is 1:1, the fabric density ratio of the outer layer to the inner layer is 1:1, the warp density of both the outer layer and the inner layer is 110-130 yarns / inch, and the weft density of both the outer layer and the inner layer is 90-120 yarns / inch.

3. The three-dimensional anti-arc fabric structure according to claim 1, characterized in that: The count of the outer warp yarn, outer weft yarn, inner warp yarn, and inner weft yarn ranges from 40 to 50 s / 2, the twist of a single yarn is 900 to 1100 twists / m, and the twist of the ply yarn is 700 to 900 twists / m.

4. The three-dimensional anti-arc fabric structure according to claim 1, characterized in that: The surface layer accounts for 50%-65% of the total weight of the fabric, and the overall weight per unit area of ​​the fabric is 250±10g / ㎡.

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