Flame resistant fabric and chair cover

Abstract

The utility model relates to the field of flame -retardant fabric, concretely relates to a flame -retardant fabric and chair cover, including mutually connected surface layer, middle layer and bottom layer, the surface layer is three -dimensional dense note plane layer, the middle layer is honeycomb set loop warp -knitted layer, the bottom layer is netted plane layer, the honeycomb set loop warp -knitted layer is by GB1 and GB2 two bearded comb warp -knitted and is knitted, GB1's organization structure is 1 0 / 1 2 / 1 0 / 1 2 / 2 3 / 2 1 / 2 3 / 2 1 / / , GB2's organization structure is 2 3 / 2 1 / 2 3 / 2 1 / 1 0 / 1 2 / 1 0 / 1 2 / / , set up three -dimensional sealing plane layer and netted plane layer in honeycomb set loop warp -knitted layer both sides, effectively improve the overall wrapping performance of fabric, improve the support performance and ductility of fabric through the honeycomb set loop warp -knitted layer located in the middle layer, avoid the phenomenon that the passenger is not suitable after sitting for a long time.

Description

Technical Field

[0001] This utility model relates to the field of flame-retardant fabrics, specifically to a flame-retardant fabric and a chair cover. Background Technology

[0002] Flame-retardant fabrics are a type of fabric with special functional properties. When exposed to flames or hot objects, they effectively prevent themselves from igniting or delay and extinguish combustion. These fabrics are mainly divided into two categories: fiber flame retardancy and post-treatment flame retardancy. Fiber flame retardancy involves introducing flame-retardant elements at the raw material stage to directly produce flame-retardant fibers, which are then woven into fabric, resulting in permanent flame retardancy. Post-treatment flame retardancy, on the other hand, involves chemical modification or flame-retardant post-treatment after the fabric production process to achieve flame-retardant properties. This method is relatively low-cost, but the flame retardancy may gradually decrease with increased use and washing frequency. Flame-retardant fabrics are environmentally friendly, non-toxic, and safe, not releasing toxic gases when exposed to open flames; they also have good heat insulation properties, effectively protecting the human body; furthermore, they possess good water absorption, a soft feel, and breathability.

[0003] In aircraft cabins, wool or leather are commonly used. Leather is prized for its elasticity, toughness, and breathability, but it is more expensive and is typically used in first class. Wool, on the other hand, is made of interwoven warp and weft yarns. Because it requires a certain thickness for use in aircraft cabins, it has very poor stretch and elasticity, which can cause discomfort for passengers after prolonged sitting. Utility Model Content

[0004] The purpose of this invention is to provide a flame-retardant fabric and chair cover, which aims to improve the problem that chair covers made of conventional fabrics have poor extensibility and elasticity, making it easy for passengers to feel uncomfortable after sitting for a long time.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flame-retardant fabric, characterized in that it comprises an interconnected top layer, a middle layer, and a bottom layer, wherein the top layer is a three-dimensional densely woven planar layer, the middle layer is a honeycomb-shaped tucked warp-knitted layer, and the bottom layer is a mesh planar layer;

[0007] The honeycomb-shaped warp-knitted layer is woven from two comb bars, GB1 and GB2.

[0008] The structure of GB1 in the honeycomb tucked warp knitting layer is 1-0 / 1-2 / 1-0 / 1-2 / 2-3 / 2-1 / 2-3 / 2-1 / / ; the structure of GB2 in the honeycomb tucked warp knitting layer is 2-3 / 2-1 / 2-3 / 2-1 / 1-0 / 1-2 / 1-0 / 1-2 / / .

[0009] Furthermore, the yarns of the surface layer and the bottom layer are flame-retardant bamboo cellulose composite fiber yarns.

[0010] Furthermore, the diameter of the flame-retardant bamboo cellulose composite fiber yarn is 200D, and the F number of the flame-retardant bamboo cellulose composite fiber yarn is 48F.

[0011] Furthermore, the middle layer yarn is flame-retardant nylon.

[0012] Furthermore, the flame-retardant nylon has a wire diameter of 45D.

[0013] Furthermore, the mesh planar layer is warp-knitted from two combs, GB1 and GB2; the structure of GB1 in the mesh planar layer is (1-0 / 2-3)×5 / 4-5 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / / ; the structure of GB2 in the mesh planar layer is (4-5 / 3-2)×5 / 1-0 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / / .

[0014] Furthermore, the yarn threading pattern of GB1 in the mesh planar layer is (2A, 2*), and the yarn threading pattern of GB2 in the mesh planar layer is (1*, 2A, 1*).

[0015] Furthermore, the three-dimensional dense-textured planar layer is woven from a single comb of GB1, and the structure of GB1 in the three-dimensional dense-textured planar layer is 2-3 / 1-0 / / .

[0016] To achieve the above objectives, the present invention adopts the following technical solution:

[0017] A chair cover using the aforementioned flame-retardant fabric.

[0018] By adopting the above technical solution, this utility model has the following advantages compared with the prior art:

[0019] By incorporating a three-dimensional sealing planar layer and a mesh planar layer on both sides of the honeycomb knitted layer, the overall wrapping performance of the fabric is effectively improved. Furthermore, the honeycomb structure, in conjunction with the mesh structure, further enhances the fabric's breathability. Meanwhile, the honeycomb knitted layer located in the middle layer improves the fabric's support and stretch properties, preventing discomfort for passengers after prolonged sitting. Attached Figure Description

[0020] Figure 1 This is a cross-sectional structural diagram of the flame-retardant fabric described in this utility model.

[0021] Figure 2 This is a schematic diagram of the surface structure of the flame-retardant fabric described in this utility model;

[0022] Figure 3This is a schematic diagram of the surface weaving structure of the flame-retardant fabric described in this utility model;

[0023] Figure 4 This is a schematic diagram of the surface weaving of the flame-retardant fabric described in this utility model;

[0024] Figure 5 This is a schematic diagram of the middle layer weaving structure of the flame-retardant fabric described in this utility model;

[0025] Figure 6 This is a schematic diagram of the middle layer weaving of the flame-retardant fabric described in this utility model;

[0026] Figure 7 This is a schematic diagram of the bottom weave structure of the flame-retardant fabric described in this utility model;

[0027] Figure 8 This is a schematic diagram of the bottom layer weaving of the flame-retardant fabric described in this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Surface layer; 2. Middle layer; 3. Bottom layer. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0031] Additionally, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" are all based on the orientation or positional relationship shown in the accompanying drawings. They are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element of this utility model must have a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] When an element is referred to as being "fixed to," "set on," or "contained on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to," it can be directly connected to or indirectly connected to that other element.

[0033] Unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Example

[0035] Please refer to Figure 1-8 As shown, this embodiment provides a flame-retardant fabric, including an interconnected top layer 1, a middle layer 2, and a bottom layer 3. The top layer 1 is a three-dimensional dense-weave planar layer, the middle layer 2 is a honeycomb-shaped tucked warp-knitted layer, and the bottom layer 3 is a mesh planar layer.

[0036] Please refer to Figure 2-4 As shown, the three-dimensional dense-weave planar layer is warp-knitted using a GB1 guide bar. The GB1 structure of the three-dimensional dense-weave planar layer is 2-3 / 1-0 / / . First, the guide needle moves laterally by 2 stitches in front of the knitting needle to form a loop. Then, it moves in the opposite direction by 3 stitches behind the knitting needle, forming a wider yarn interweaving. The yarn covers a wide area, creating a breathable mesh or loose structure, enhancing the lateral stretch of the fabric and improving the elasticity of the three-dimensional dense-weave planar layer. Then, the guide needle moves slightly by 1 stitch to form a loop, and then remains stationary behind the needle, forming a dense structure. Combined with flame-retardant yarn, this enhances the flame-retardant properties of the three-dimensional dense-weave planar layer. This process is repeated to form the three-dimensional dense-weave planar layer.

[0037] Please refer to Figure 5 and Figure 6As shown, the honeycomb tucked warp knitting layer is woven from two guide bars, GB1 and GB2. The weave structure of GB1 in the honeycomb tucked warp knitting layer is 1-0 / 1-2 / 1-0 / 1-2 / 2-3 / 2-1 / 2-3 / 2-1 / / ; the weave structure of GB2 in the honeycomb tucked warp knitting layer is 2-3 / 2-1 / 2-3 / 2-1 / 1-0 / 1-2 / 1-0 / 1-2 / / . In the honeycomb tucked warp knitting layer, the first half of GB1, 1-0 / 1-2, is repeated twice, with the needle moving forward by 1 stitch and not moving backward, forming a dense loop; then, the needle moves forward by 1 stitch and backward by 2 stitches, forming a lateral extension. The second half, 2-3 / 2-1, is repeated twice, with the needle moving forward by 2 stitches and backward by 3 stitches, providing wide coverage; then, the needle moves forward by 2 stitches and backward by 1 stitch, creating a tapering transition. The first half of GB2 (2-3 / 2-1) is repeated twice, symmetrical to the second half of GB1; the second half of GB2 (1-0 / 1-2) is repeated twice, symmetrical to the first half of GB1. The movement patterns of GB1 and GB2 are reverse-symmetrical, creating a bidirectional balance of the interwoven yarns, significantly improving the dimensional stability of the honeycomb-shaped tucked warp-knitted layer and reducing curling or twisting. Symmetrical transverse movement ensures uniform tension of the yarns in both the longitudinal and transverse directions, avoiding localized stress concentration and enhancing the tensile and tear resistance of the honeycomb-shaped tucked warp-knitted layer, providing excellent support for passengers. Furthermore, the alternating arrangement of the dense 1-0 structure and the wide 2-3 structure provides both support and breathability; the reverse needle movement of 1-2 and 2-1 creates a wavy interweaving of the yarn path, increasing the elasticity and fit of the honeycomb-shaped tucked warp-knitted layer, providing excellent fit and all-around support for passengers.

[0038] Please refer to Figure 7 and Figure 8 As shown, the mesh planar layer is warp-knitted by two guide bars, GB1 and GB2. The weave structure of GB1 is (1-0 / 2-3)×5 / 4-5 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / / ; the weave structure of GB2 is (4-5 / 3-2)×5 / 1-0 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / / . Specifically, in the preceding movement of GB1, the needle moves forward by 1 stitch and backward by 0 stitches; then moves forward by 2 stitches and backward by 3 stitches, repeating this pattern five times. In the preceding movement of GB2, the needle moves forward by a large range of 4 stitches and backward by 5 stitches; then moves forward by 3 stitches and backward by 2 stitches, repeating this pattern five times. Furthermore, the yarn threading pattern of GB1 in the mesh planar layer is (2A, 2*), i.e., two threads threaded and two loops. The threading pattern of GB2 in the mesh planar layer is (1*, 2A, 1*), that is, one open space, two threads, and one open space.

[0039] In the mesh planar layer, GB1 and GB2 move in opposite directions, such as GB1 from 1-0 to 4-5 and GB2 from 4-5 to 1-0, forming a symmetrical interlacing structure to avoid unidirectional stress concentration and improve fabric dimensional stability. The preceding motion pattern is repeated five times to form a regular loop structure, ensuring uniform fabric mechanical properties, suitable for the high consistency requirements of industrial production. The (2A, 2*) yarn threading of GB1 forms regular longitudinal stripes and spaced eyelets, while the (1*, 2A, 1*) yarn threading of GB2 concentrates the yarn in the central area, forming a symmetrical pattern that combines breathability and decoration. Simultaneously, the preceding motion of GB2 (4-5 / 3-2) involves a large-scale yarn lateral movement, forming a wide pattern. The empty spaces on both sides reduce yarn interlacing, enhancing the three-dimensionality of the pattern and creating a fabric structure with a prominent central pattern and a light, breathable edge structure. In this embodiment, the top layer 1, middle layer 2, and bottom layer 3 are formed by the above warp-knitted structure as basic units, which extend infinitely around the basic units to form the fabric structure.

[0040] By incorporating a three-dimensional sealing planar layer and a mesh planar layer on both sides of the honeycomb knitted layer, the overall wrapping performance of the fabric is effectively improved. Furthermore, the honeycomb structure, in conjunction with the mesh structure, further enhances the fabric's breathability. Meanwhile, the honeycomb knitted layer located in the middle layer improves the fabric's support and stretch properties, preventing discomfort for passengers after prolonged sitting.

[0041] The yarns in the top layer 1 and the bottom layer 3 are flame-retardant bamboo cellulose composite fiber yarns. The addition of flame-retardant yarns to the top layer 1 and the bottom layer 3 improves the overall flame-retardant performance of the fabric, thus mitigating the impact of small-scale fires and enhancing safety.

[0042] Furthermore, the flame-retardant bamboo cellulose composite fiber yarn has a diameter of 200D and an F number of 48F. The 200D diameter and 48F fineness give the flame-retardant bamboo cellulose composite fiber yarn high strength and abrasion resistance. This makes the surface layer 1 and the bottom layer 3 less prone to damage, resulting in a long service life, able to withstand daily use and wear, and maintaining good appearance and performance over a long period.

[0043] The middle layer 2 is made of flame-retardant nylon yarn, forming a flame-retardant nylon monofilament loop warp knitted structure. This effectively improves the tensile and tear strength of the fabric, providing good support for the top layer 1 and bottom layer 3, and also enhances the abrasion resistance of the middle layer 2, reducing the compression wear caused to the middle layer 2 during the support process, thus extending the fabric's service life. It also has rapid moisture-wicking properties, giving the fabric overall quick-drying characteristics. Furthermore, the flame-retardant nylon yarn diameter is 45D. Controlling the flame-retardant nylon yarn diameter to 45D ensures that the fabric remains lightweight while still providing sufficient strength and abrasion resistance, while also improving the fabric's elasticity, allowing it to quickly return to its original shape after compression and stretching, resulting in better extensibility.

[0044] In this embodiment, a chair cover is also disclosed, which uses the aforementioned flame-retardant fabric.

[0045] 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 or 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 flame-retardant fabric, characterized in that, It includes an interconnected top layer, middle layer and bottom layer, wherein the top layer is a three-dimensional densely textured planar layer, the middle layer is a honeycomb-shaped tucked warp-knitted layer, and the bottom layer is a mesh planar layer; The honeycomb-shaped warp-knitted layer is woven from two comb bars, GB1 and GB2. The structure of GB1 in the honeycomb tucked warp knitting layer is 1-0 / 1-2 / 1-0 / 1-2 / 2-3 / 2-1 / 2-3 / 2-1 / / ; the structure of GB2 in the honeycomb tucked warp knitting layer is 2-3 / 2-1 / 2-3 / 2-1 / 1-0 / 1-2 / 1-0 / 1-2 / / .

2. The flame-retardant fabric according to claim 1, characterized in that: The yarns of the top and bottom layers are flame-retardant bamboo cellulose composite fiber yarns.

3. The flame-retardant fabric according to claim 2, characterized in that: The flame-retardant bamboo cellulose composite fiber yarn has a diameter of 200D and an F number of 48F.

4. The flame-retardant fabric according to claim 1, characterized in that: The middle layer yarn is flame-retardant nylon.

5. The flame-retardant fabric according to claim 4, characterized in that: The flame-retardant nylon has a wire diameter of 45D.

6. The flame-retardant fabric according to claim 1, characterized in that: The mesh planar layer is woven from two combs, GB1 and GB2; the structure of GB1 of the mesh planar layer is (1-0 / 2-3)×5 / 4-5 / 3-2 / 1-0 / 2-3 / 4-5 / 3-2 / / ; the structure of GB2 of the mesh planar layer is (4-5 / 3-2)×5 / 1-0 / 2-3 / 4-5 / 3-2 / 1-0 / 2-3 / / .

7. The flame-retardant fabric according to claim 6, characterized in that: The threading pattern of GB1 in the mesh planar layer is (2A, 2*), and the threading pattern of GB2 in the mesh planar layer is (1*, 2A, 1*).

8. The flame-retardant fabric according to claim 1, characterized in that: The three-dimensional dense-textured planar layer is woven from a single comb of GB1, and the structure of GB1 in the three-dimensional dense-textured planar layer is 2-3 / 1-0 / / .

9. A chair cover, characterized in that, The flame-retardant fabric described in any one of claims 1-8 is used.

Images