Breathable flame-retardant knitted fabric

Abstract

A first flame-retardant layer and a second flame-retardant layer are respectively adhered to the upper surface and the lower surface of a fabric base layer, each of the first flame-retardant layer and the second flame-retardant layer comprises a surface flame-retardant layer and an inner flame-retardant layer, and each of the surface flame-retardant layers and the inner flame-retardant layers is formed by interweaving flame-retardant warps and flame-retardant wefts. A first breathable layer is bonded to the upper surface of the first flame-retardant layer, a second breathable layer is bonded to the lower surface of the second flame-retardant layer, the first breathable layer and the second breathable layer each comprise a breathable surface layer and a breathable inner layer, and the breathable surface layers and the breathable inner layers are formed by interweaving breathable warp yarns and breathable weft yarns; the breathable surface layer and the breathable inner layer are interwoven to form a first interwoven part and a second interwoven part, and a gap breathable space is formed between the first interwoven part and the second interwoven part. According to the breathable flame-retardant knitted fabric, the first flame-retardant layer and the second flame-retardant layer can improve the flame-retardant effect of the knitted fabric, and the first breathable layer and the second breathable layer can improve the breathable effect of the knitted fabric.

Description

Technical Field

[0001] The utility model relates to the technical field of knitted fabrics, in particular to a breathable and flame-retardant knitted fabric. Background Art

[0002] Knitted fabrics are fabrics formed by bending yarns into loops and interlacing them with knitting needles. The difference between knitted fabrics and woven fabrics is that the yarns have different shapes in the fabrics. Knitting is divided into weft knitting and warp knitting. Knitted fabrics are widely used in clothing fabrics, linings, home textiles and other products, and are loved by consumers. Warp knitting uses multiple yarns to form loops in the longitudinal order of the fabric surface at the same time, while weft knitting uses one or more yarns to form loops in the transverse order of the fabric surface.

[0003] For example, the utility model patent application with authorization announcement number CN212288986U and name "An antibacterial and anti-wrinkle knitted fabric" includes an upper knitted fabric, a middle knitted fabric and a lower knitted fabric, the middle knitted fabric is arranged at the lower end of the upper knitted fabric, the lower knitted fabric is arranged at the lower end of the middle knitted fabric, a first antibacterial layer is arranged between the upper knitted fabric and the middle knitted fabric, a second antibacterial layer is arranged between the middle knitted fabric and the lower knitted fabric, bamboo charcoal antibacterial fiber filaments are arranged inside the first antibacterial layer, protein fiber filaments are arranged at the lower end of the bamboo charcoal antibacterial fiber filaments, jute antibacterial fiber filaments are arranged inside the second antibacterial layer, and polyester fiber filaments are arranged at the lower end of the jute antibacterial fiber filaments.

[0004] Existing knitted fabrics generally have one, two or even multiple layers, which can meet normal use requirements, but their air permeability is very poor and they are flammable, and cannot meet the use scenarios with breathable and flame-retardant requirements. Therefore, there is an urgent need for a breathable and flame-retardant knitted fabric. Utility Model Content

[0005] The utility model aims to provide a breathable flame-retardant knitted fabric to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A breathable flame-retardant knitted fabric comprises a fabric base layer, wherein a first flame-retardant layer and a second flame-retardant layer are bonded to the upper surface and the lower surface of the fabric base layer respectively, wherein the first flame-retardant layer and the second flame-retardant layer both comprise a surface flame-retardant layer and an inner flame-retardant layer, wherein the surface flame-retardant layer and the inner flame-retardant layer are both formed by interweaving flame-retardant warp threads and flame-retardant weft threads, wherein a first air-permeable layer is bonded to the upper surface of the first flame-retardant layer, wherein a second air-permeable layer is bonded to the lower surface of the second flame-retardant layer, wherein the first air-permeable layer and the second air-permeable layer both comprise a breathable surface layer and a breathable inner layer, wherein the breathable surface layer and the breathable inner layer are both formed by interweaving breathable warp yarns and breathable weft yarns, wherein a portion of the breathable warp yarns of the breathable inner layer and a portion of the breathable weft yarns of the breathable surface layer are interwoven to form a first interwoven portion, wherein a portion of the breathable weft yarns of the breathable inner layer and a portion of the breathable warp yarns of the breathable surface layer are interwoven to form a second interwoven portion, wherein a gap breathable space is formed between the first interwoven portion and the second interwoven portion.

[0008] The above-mentioned breathable flame-retardant knitted fabric, the breathable warp yarn and the breathable weft yarn are both made of yarns blended with aramid fiber and antistatic fiber.

[0009] The above-mentioned breathable flame-retardant knitted fabric, the fiber raw materials of the flame-retardant warp and flame-retardant weft both include flame-retardant fibers for textile use.

[0010] In the above-mentioned breathable flame-retardant knitted fabric, the flame-retardant weft threads of the surface flame-retardant layer and the inner flame-retardant layer shuttle between the two flame-retardant layers in a periodic and alternating manner.

[0011] The above-mentioned breathable flame-retardant knitted fabric also includes a first knitted fabric layer, which is arranged on the upper surface of the first breathable layer.

[0012] The above-mentioned breathable flame-retardant knitted fabric also includes a second knitted fabric layer, which is arranged on the lower surface of the second breathable layer.

[0013] In the above-mentioned breathable flame-retardant knitted fabric, the first knitted fabric layer and the second knitted fabric layer both include ventilation holes, and the cross-section of the ventilation holes is trapezoidal.

[0014] In the above technical scheme, the breathable flame-retardant knitted fabric provided by the utility model includes a fabric base layer, the upper surface and the lower surface of the fabric base layer are respectively bonded with a first flame-retardant layer and a second flame-retardant layer, the first flame-retardant layer and the second flame-retardant layer both include a surface flame-retardant layer and an inner flame-retardant layer, and the flame-retardant effect of the knitted fabric can be improved by the first flame-retardant layer and the second flame-retardant layer, the upper surface of the first flame-retardant layer is bonded with a first breathable layer, and the lower surface of the second flame-retardant layer is bonded with a second breathable layer, the first breathable layer and the second breathable layer both include a breathable surface layer and a breathable inner layer, the breathable surface layer and the breathable inner layer are alternately formed in sequence to form a first interlaced portion and a second interlaced portion, and a gap breathable space is formed between the first interlaced portion and the second interlaced portion, so that the breathable effect of the knitted fabric can be improved by the first breathable layer and the second breathable layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 A schematic diagram of the structure of a breathable flame-retardant knitted fabric provided by an embodiment of the utility model;

[0017] Figure 2 A schematic structural diagram of the first flame retardant layer provided in an embodiment of the utility model.

[0018] Description of reference numerals:

[0019] 1. Fabric base layer; 2. First flame retardant layer; 20. Surface flame retardant layer; 21. Inner flame retardant layer; 22. Flame retardant warp; 23. Flame retardant weft; 24. Gap cavity; 3. Second flame retardant layer; 4. First breathable layer; 40. Breathable surface layer; 41. Breathable inner layer; 42. First interlaced portion; 43. Second interlaced portion; 44. Gap breathable space; 5. Second breathable layer; 6. First knitted fabric layer; 60. Breathable hole; 7. Second knitted fabric layer. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0021] like Figure 1-2 As shown, the utility model provides a breathable flame-retardant knitted fabric, including a fabric base layer 1, the upper surface and the lower surface of the fabric base layer 1 are respectively bonded with a first flame-retardant layer 2 and a second flame-retardant layer 3, the first flame-retardant layer 2 and the second flame-retardant layer 3 both include a surface flame-retardant layer 20 and an inner flame-retardant layer 21, the surface flame-retardant layer 20 and the inner flame-retardant layer 21 are both interwoven by flame-retardant warp threads 22 and flame-retardant weft threads 23, the upper surface of the first flame-retardant layer 2 is bonded with a first breathable layer 4, the lower surface of the second flame-retardant layer 3 is bonded with a second breathable layer 55, The first breathable layer 4 and the second breathable layer 55 both include a breathable surface layer 40 and a breathable inner layer 41. The breathable surface layer 40 and the breathable inner layer 41 are both formed by interweaving breathable warp yarns and breathable weft yarns. Part of the breathable warp yarns of the breathable inner layer 41 are interwoven with part of the breathable weft yarns of the breathable surface layer 40 to form a first interwoven portion 42. Part of the breathable weft yarns of the breathable inner layer 41 are interwoven with part of the breathable warp yarns of the breathable surface layer 40 to form a second interwoven portion 43. A gap breathable space 44 is formed between the first interwoven portion 42 and the second interwoven portion 43.

[0022] Specifically, the fabric base layer 1 is a knitted fabric layer, the first flame retardant layer 2 is bonded and fixed to the upper surface of the fabric base layer 1, and the second flame retardant layer 3 is bonded and fixed to the lower surface of the fabric base layer 1. The first flame retardant layer 2 and the second flame retardant layer 3 both include a surface flame retardant layer 20 and an inner flame retardant layer 21. The surface flame retardant layer 20 and the inner flame retardant layer 21 are both interwoven with flame retardant warps 22 and flame retardant wefts 23. The flame retardant wefts 23 of the surface flame retardant layer 20 and the inner flame retardant layer 21 periodically and alternately shuttle between the two flame retardant layers, and the exchange points of the flame retardant wefts 23 of the surface flame retardant layer 20 and the inner flame retardant layer 21 are located at the edges of both sides of the surface flame retardant layer 20 and the inner flame retardant layer 21, so that the two end sides of the surface flame retardant layer 20 and the inner flame retardant layer 21 in the width direction form a fence-type barrier layer, and a gap cavity 24 is formed between the surface flame retardant layer 20 and the inner flame retardant layer 21.

[0023] A first air-permeable layer 4 is bonded to the upper surface of the first flame-retardant layer 2, and a second air-permeable layer 55 is bonded to the lower surface of the second flame-retardant layer 3. The first air-permeable layer 4 and the second air-permeable layer 55 both include an air-permeable surface layer 40 and an air-permeable inner layer 41. The air-permeable inner layer 41 is bonded and fixed to the first flame-retardant layer 2 or the second flame-retardant layer 3. The structures of the air-permeable surface layer 40 and the air-permeable inner layer 41 are the same, and are both formed by interweaving air-permeable warp yarns and air-permeable weft yarns. The air-permeable surface layer 40 and the air-permeable inner layer 41 are interwoven together in sequence, and the interweaving method is as follows: part of the air-permeable warp yarns of the air-permeable inner layer 41 are interwoven with the air-permeable warp yarns of the air-permeable inner layer 41. Part of the breathable weft yarns of the breathable surface layer 40 are interwoven to form a first interwoven portion 42, and part of the breathable weft yarns of the breathable inner layer 41 and part of the breathable warp yarns of the breathable surface layer 40 are interwoven to form a second interwoven portion 43. The first interwoven portion 42 and the second interwoven portion 43 are arranged in sequence at intervals along the length direction of the breathable surface layer 40 and the breathable inner layer 41, and a gap breathable space 44 is formed between the first interwoven portion 42 and the second interwoven portion 43. Such staggered weaving not only improves the strength of the first breathable layer 4 and the second breathable layer 55, but also improves the breathability effect of the first breathable layer 4 and the second breathable layer 55.

[0024] The utility model provides a breathable flame-retardant knitted fabric, comprising a fabric base layer 1, the upper surface and the lower surface of the fabric base layer 1 are respectively bonded with a first flame-retardant layer 2 and a second flame-retardant layer 3, the first flame-retardant layer 2 and the second flame-retardant layer 3 both include a surface flame-retardant layer 20 and an inner flame-retardant layer 21, the flame-retardant effect of the knitted fabric can be improved by the first flame-retardant layer 2 and the second flame-retardant layer 3, the upper surface of the first flame-retardant layer 2 is bonded with a first air-permeable layer 4, the lower surface of the second flame-retardant layer 3 is bonded with a second air-permeable layer 55, the first air-permeable layer 4 and the second air-permeable layer 55 both include a breathable surface layer 40 and a breathable inner layer 41, the breathable surface layer 40 and the breathable inner layer 41 are alternately formed in sequence to form a first interlaced portion 42 and a second interlaced portion 43, a gap breathable space 44 is formed between the first interlaced portion 42 and the second interlaced portion 43, so that the breathability effect of the knitted fabric can be improved by the first air-permeable layer 4 and the second air-permeable layer 55.

[0025] In the present embodiment, preferably, the breathable warp yarn and the breathable weft yarn are both made of cotton fiber material, and a mesh-distributed conductive fiber mesh is provided inside the cotton fiber material, so that the first breathable layer 4 and the second breathable layer 55 have good breathable mesh holes, which can quickly discharge water vapor inside the fabric structure to avoid the growth of mold in the structure; and the mesh-distributed conductive fiber mesh provided inside the first breathable layer 4 and the second breathable layer 55 can further assist the fabric in increasing the antistatic effect.

[0026] In this embodiment, preferably, the fiber raw materials of the flame-retardant warp 22 and the flame-retardant weft 23 include textile flame-retardant fibers, and the textile flame-retardant fibers are aramid flame-retardant fibers. Aramid flame-retardant fibers have the advantages of heat resistance, high strength, high wear resistance, good softness, low shrinkage, etc., and their chemical structure is stable, and there is no droplet when burning and no toxic gas is produced; they have good dimensional stability, can be used for a long time at a temperature of 250°C, and their thermal shrinkage rate is only 1%, and their limit softening temperature is 373°C. They will not start to decompose until they exceed 400°C. When decomposing, the cloth thickens, the fibers expand, and the cloth surface isolates heat transfer without cracking. They are suitable as functional raw materials for flame-retardant fabrics.

[0027] The production process of the first flame retardant layer 2 and the second flame retardant layer 3 can be as follows: firstly, two flame retardant warp threads 22 are longitudinally aligned with a predetermined spacing, and they are used as the flame retardant warp threads 22 of the surface flame retardant layer 20 and the inner flame retardant layer 21 respectively; then, two flame retardant weft threads 23 are woven on the surface flame retardant layer 20 and the inner flame retardant layer 21; during the weaving process, the two flame retardant weft threads 23 are intermittently exchanged, and the surface flame retardant layer 20 and the inner flame retardant layer 21 can be woven at the same time, that is, the weaving of the double-layer flame retardant fabric is completed; then, the inner lining layer is fixed together with one side of the double-layer flame retardant fabric.

[0028] In the present embodiment, preferably, a first knitted fabric layer 6 and a second knitted fabric layer 7 are further included. The first knitted fabric layer 6 is arranged on the upper surface of the first breathable layer 4, and the second knitted fabric layer 7 is arranged on the lower surface of the second breathable layer 55. The first knitted fabric layer 6 and the second knitted fabric layer 7 both include air holes 60, and the cross-section of the air holes 60 is trapezoidal. In this way, the first knitted fabric layer 6, the fabric base layer 1 and the second knitted fabric layer 7 form a three-layer knitted fabric, which can improve the strength and tensile resistance of the fabric. The first knitted fabric layer 6 and the second knitted fabric layer 7 are provided with air holes 60, which have the characteristics of moisture absorption and perspiration, breathability, etc., and are comfortable to wear, which greatly improves the practicality of the fabric.

[0029] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A breathable flame-retardant knitted fabric, comprising a fabric base layer, characterized in that: The upper surface and the lower surface of the fabric base layer are respectively bonded with a first flame retardant layer and a second flame retardant layer, the first flame retardant layer and the second flame retardant layer both include a surface flame retardant layer and an inner flame retardant layer, the surface flame retardant layer and the inner flame retardant layer are both formed by interweaving flame retardant warp threads and flame retardant weft threads, the upper surface of the first flame retardant layer is bonded with a first breathable layer, the lower surface of the second flame retardant layer is bonded with a second breathable layer, the first breathable layer and the second breathable layer both include a breathable surface layer and a breathable inner layer, the breathable surface layer and the breathable inner layer are both formed by interweaving breathable warp yarns and breathable weft yarns, part of the breathable warp yarns of the breathable inner layer and part of the breathable weft yarns of the breathable surface layer are interwoven to form a first interwoven portion, part of the breathable weft yarns of the breathable inner layer and part of the breathable warp yarns of the breathable surface layer are interwoven to form a second interwoven portion, and a gap breathable space is formed between the first interwoven portion and the second interwoven portion.

2. The breathable flame-retardant knitted fabric according to claim 1, characterized in that: The air-permeable warp yarn and the air-permeable weft yarn are both yarns blended from aramid fiber and antistatic fiber.

3. The breathable flame-retardant knitted fabric according to claim 1, characterized in that: The fiber raw materials of the flame-retardant warp and flame-retardant weft both include flame-retardant fibers for textiles.

4. The breathable flame-retardant knitted fabric according to claim 1, characterized in that: The flame retardant wefts of the surface flame retardant layer and the inner flame retardant layer shuttle between the two flame retardant layers in a periodic and alternating manner.

5. The breathable flame-retardant knitted fabric according to claim 1, characterized in that: It also includes a first knitted fabric layer, which is arranged on the upper surface of the first breathable layer.

6. The breathable flame-retardant knitted fabric according to claim 5, characterized in that: It also includes a second knitted fabric layer, which is arranged on the lower surface of the second breathable layer.

7. The breathable flame-retardant knitted fabric according to claim 6, characterized in that: The first knitted fabric layer and the second knitted fabric layer both include ventilation holes, and the cross-section of the ventilation holes is trapezoidal.

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