Stair cloth fabric

Abstract

The utility model discloses a staircase cloth fabric which is characterized in that the staircase cloth fabric comprises an upper texture layer and a lower substrate layer, the upper texture layer is formed by weaving elastic yarns, and a plurality of strip-shaped interweaving areas and strip-shaped texture areas which are alternately arranged in the transverse direction are arranged on the upper texture layer; the lower substrate layer is formed by densely weaving non-elastic high-strength yarns; the lower substrate layer is interwoven with the strip-shaped interwoven areas of the upper texture layer through interwoven lines, and the strip-shaped texture areas of the upper texture layer protrude out of the lower substrate layer and form a plurality of stair-shaped textures which are sequentially arranged in the transverse direction. The stair cloth fabric can effectively improve the elasticity in the arrangement direction of stairs and the tensile strength in the vertical direction, and has air permeability and light weight.

Description

TECHNICAL FIELD

[0001] The utility model relates to cloth field, especially a stair cloth. BACKGROUND

[0002] Stair cloth is a kind of fabric with stair-like texture, which is processed by warp knitting, weft knitting or weaving process, and the surface is composed of continuous "step" convex, and is named because of its stair-like appearance. The fabric is widely used in clothing, home textiles, industrial cloth and other fields due to its unique appearance, good air permeability and basic mechanical strength.

[0003] In the prior art, the design of stair cloth focuses on the optimization of texture form, air permeability or overall mechanical strength, and the selection of yarn, knitting density and organization structure is targeted at the overall performance balance, without specific design for the differentiated needs of different stress directions. However, in practical application, stair cloth often faces direction-specific stress requirements: good elasticity is required along the stair arrangement direction (such as the stretching direction of human body) to adapt to the stretching demand and reduce restraint; higher tensile strength is required perpendicular to the direction (such as the stress support direction) to avoid deformation or damage caused by friction and pulling.

[0004] The core defect of the existing stair cloth is that it cannot balance the performance in two directions: in order to ensure elasticity, elastic yarn and loose knitting structure are used, which leads to insufficient tensile strength in the perpendicular direction, and long-term use may cause stretching deformation, low breaking strength and short service life in high-frequency use scenarios; if the yarn density is increased or high-strength yarn is selected to improve the tensile strength, the elastic recovery rate along the stair arrangement direction will be reduced, making the fabric rigid and unable to meet the flexible fitting or motion stretching demand. Some technologies attempt to improve the composite layer structure, but this will lead to thickening of the fabric, reduction of air permeability, complex production process and cost increase, which is difficult to adapt to the lightweight and comfort demand scenarios.

[0005] Therefore, the deficiencies of the existing stair cloth in the direction-specific performance matching limit its application in high-end clothing, high-performance industrial cloth and other fields, and the industry urgently needs a stair cloth with stronger elasticity along the stair arrangement direction, higher tensile strength perpendicular to the direction, and consideration of the original air permeability and lightweight advantages to solve the performance imbalance problem of the prior art. SUMMARY

[0006] The technical problem to be solved by the utility model is to provide a stair cloth that can effectively improve the elasticity along the stair arrangement direction and the tensile strength perpendicular to the direction, and also consider the air permeability and lightweight.

[0007] In order to solve the above technical problems, the technical scheme adopted is as follows:

[0008] The stair cloth fabric is characterized by comprising an upper texture layer and a lower base layer, the upper texture layer is knitted by elastic yarn, and a plurality of strip interweaving areas and strip texture areas are arranged alternately in the transverse direction on the upper texture layer; the lower base layer is densely knitted by non-elastic high-strength yarn; the lower base layer is interwoven with the strip interweaving areas of the upper texture layer through interweaving lines, and the strip texture areas of the upper texture layer protrude on the lower base layer and form a plurality of stair-like textures arranged in the transverse direction.

[0009] The stair cloth fabric is designed by a double-layer differential structure, the elastic yarn of the upper texture layer guarantees the elasticity in the transverse direction (the stair arrangement direction), and the strip texture areas provide a structural basis for the step formation; the non-elastic high-strength yarn of the lower base layer is densely knitted to strengthen the tensile strength in the longitudinal direction (perpendicular to the stair arrangement direction); meanwhile, the upper and lower layers are only interwoven and fixed in the strip interweaving areas, so that the strip texture areas of the upper layer are naturally raised (the interweaving method can be that the conveying speed of the upper texture layer is greater than that of the lower base layer during the conveying of the fabric, so that the strip texture areas of the upper texture layer can form a gas supply structure under the action of elasticity) to form regular stair-like textures without additional composite processes. The stair cloth fabric not only retains the softness and fit of the textile fabric, but also enhances the three-dimensional level through the step texture, and the non-interwoven strip texture areas form natural ventilation channels, which take into account the functionality and practicality; the structural design is simple, the production is convenient, and the stair cloth is suitable for multiple scenes such as clothing, home textiles and industrial cloth, and solves the problem of unbalanced performance of the existing stair cloth.

[0010] In the preferred scheme, the step height of the stair-like texture is 1-2 mm, and the distance between adjacent steps is 1-2 mm. This size parameter design can make the stair-like texture have both elasticity and toughness, which not only guarantees the three-dimensional visual effect, but also avoids the rigidity of the fabric, and meets the use requirements of most application scenarios.

[0011] In the preferred scheme, the stair cloth fabric is knitted by a double-sided knitting machine, and 8 paths are taken as one knitting cycle, wherein the first to third paths are used to knit the upper texture layer, the second path is used to knit the strip texture area, the elastic yarn is 28S spandex chinlon blended yarn; the fourth to sixth paths are used to knit the lower base layer, the non-elastic high-strength yarn is 30S polyester strong twist yarn; and the seventh to eighth paths are used to fix the strip interweaving areas of the upper texture layer and the lower base layer. This knitting process can precisely control the structural difference between the upper strip texture area and the lower dense area, ensure that the upper strip texture area is regularly raised and formed, and the lower support is stable, at the same time, simplify the production process, improve the product consistency in batch production, and reduce the production cost.

[0012] In a further preferred embodiment, the 28S spandex and nylon blended yarn has a spandex content of 4-6%, and the weaving density of the strip-shaped texture region is 55-65% of that of the strip-shaped interlaced region. The precise matching of the spandex content and the density difference in the upper texture layer can provide balanced and sufficient elasticity for the stair-shaped texture, avoiding excessive shrinkage or insufficient elasticity leading to texture deformation.

[0013] In a further preferred embodiment, the 28S spandex and nylon blended yarn has a loop length of 210-230MM / 100G. This loop length parameter adapts to the weaving needs of elastic yarn, which can provide sufficient shrinkage elasticity for the strip-shaped texture region of the upper texture layer, ensuring that the step protrusion form is full and not prone to collapse, and can also avoid loose fabric structure and loss of support due to too long loops.

[0014] In a further preferred embodiment, the longitudinal weaving density of the lower base layer is 1.1-1.2 times that of the strip-shaped interlaced region in the upper texture layer. The high-density design of the lower base layer can significantly improve the longitudinal tensile strength and effectively resist daily friction and pulling.

[0015] In a further preferred embodiment, when the lower base layer is woven in the 4th-6th path, the 30S polyester strong twist yarn is fed in parallel with two roots. The design of parallel feeding of double roots of yarn can significantly enhance the longitudinal interlacing strength and constraint force, further improving the longitudinal tensile strength and structural stability.

[0016] In a further preferred embodiment, the 30S polyester strong twist yarn has a loop length of 160-180MM / 100G. This loop length can be adapted by parallel feeding of double roots of yarn, which can further improve the longitudinal tensile strength and structural stability, and will not cause the fabric to be stiff due to too short loops, effectively maintaining the overall soft and comfortable use experience.

[0017] The stair cloth fabric can effectively improve the elasticity along the arrangement direction of the stairs and the tensile strength in the vertical direction, and also has good air permeability and light weight. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 FIG. 1 is a structural schematic view of a stair cloth fabric according to an embodiment of the present application;

[0019] Fig. 2 FIG. 2 is a sectional view of the stair cloth fabric according to the embodiment of the present application. DETAILED DESCRIPTION

[0020] The present application will be further described below in conjunction with the drawings and specific embodiments:

[0021] As Figs. 1-2The illustrated stair cloth fabric includes an upper texture layer 1 and a lower base layer 2. The upper texture layer 1 is knitted from elastic yarns, and has a plurality of strip-shaped interlaced areas 3 and strip-shaped texture areas 4 arranged alternately in the transverse direction. The lower base layer 2 is densely knitted from non-elastic high-strength yarns. The lower base layer 2 is interlaced with the strip-shaped interlaced areas 3 of the upper texture layer 1, and the strip-shaped texture areas 4 of the upper texture layer 1 protrude from the lower base layer 2 and form a plurality of stair-shaped textures arranged in the transverse direction.

[0022] The stair cloth fabric has a double-layer differential structure. The elastic yarns of the upper texture layer 1 ensure the elasticity in the transverse direction (the direction of stair arrangement), and the strip-shaped texture areas 4 provide a structural basis for the step formation. The non-elastic high-strength yarns of the lower base layer 2 are densely knitted to strengthen the tensile strength in the longitudinal direction (perpendicular to the direction of stair arrangement). Meanwhile, the upper and lower layers are only interlaced and fixed at the strip-shaped interlaced areas 3, so that the strip-shaped texture areas 4 of the upper layer naturally rise under the action of elasticity (the interlacing method can be to make the conveying speed of the upper texture layer 1 greater than that of the lower base layer 2 when conveying the fabric, so that the strip-shaped texture areas 4 of the upper texture layer 1 can form a gas supply structure under the action of elasticity when interlacing), forming regular stair-shaped textures without the need for additional composite processes. This stair cloth fabric not only retains the softness and fit of textile fabrics, but also enhances the three-dimensional level through the step texture, and the non-interlaced strip-shaped texture areas 4 form natural ventilation channels, balancing functionality and practicality. The structural design is simple and convenient to produce, and is suitable for multiple scenarios such as clothing, home textiles, and industrial fabrics, solving the problem of performance imbalance of existing stair cloth.

[0023] The step height of the stair-shaped texture is 1-2 mm, and the distance between adjacent steps is 1-2 mm. This size parameter design enables the stair-shaped texture to have both elasticity and toughness, ensuring a three-dimensional visual effect while avoiding stiffness, and adapting to the usage requirements of most application scenarios.

[0024] The stair cloth fabric is knitted on a double-sided knitting machine, with 8 paths as one knitting cycle. The first to third paths knit the upper texture layer 1, the second path knits the strip-shaped texture areas 4, the elastic yarns are 28S spandex nylon blended yarns; the fourth to sixth paths knit the lower base layer 2, the non-elastic high-strength yarns are 30S polyester strong twist yarns; and the seventh and eighth paths are the fixed interweaving between the strip-shaped interlaced areas 3 of the upper texture layer 1 and the lower base layer 2. This knitting process can precisely control the structural difference between the upper strip-shaped texture areas 4 and the lower dense areas, ensuring that the upper protruding formation is regular and the lower support is stable, while simplifying the production process, improving product consistency in batch production, and reducing production costs.

[0025] 28S spandex and nylon blended yarn, spandex accounts for 4%-6%, the weaving density of strip texture area 4 is 55%-65% of strip interlaced area 3. The precise matching of spandex ratio and density difference in the upper texture layer 1 can provide balanced and sufficient elasticity for the stair-like texture, avoiding excessive shrinkage or insufficient elasticity leading to texture deformation.

[0026] 28S spandex and nylon blended yarn has a loop length of 210-230MM / 100G. This loop length parameter adapts to the weaving needs of elastic yarn, which can provide sufficient shrinkage elasticity for the strip texture area 4 of the upper texture layer 1, ensuring that the step convex form is full and not easy to collapse, and avoiding the fabric structure loose and losing support due to too long loops.

[0027] The longitudinal weaving density of the lower base layer 2 is 1.1-1.2 times that of the strip interlaced area 3 in the upper texture layer 1. The lower base layer 2 adopts high-density design, which can significantly improve the longitudinal tensile strength and effectively resist daily friction and pulling.

[0028] When weaving the 4th-6th path of the lower base layer 2, 30S polyester strong twist yarn is fed in parallel with double roots. The design of double root yarn parallel feeding can significantly enhance the longitudinal interlacing strength and constraint force, further improving the longitudinal tensile strength and structural stability.

[0029] The loop length of 30S polyester strong twist yarn is 160-180MM / 100G. This loop length can be adapted by double root yarn parallel feeding, which can further improve the longitudinal tensile strength and structural stability, and will not cause the fabric to be stiff due to too short loops, effectively maintaining the overall soft and comfortable user experience.

Claims

1. A staircase fabric, characterized in that: It includes an upper texture layer and a lower base layer. The upper texture layer is woven from elastic yarn and has multiple striped interlacing areas and striped texture areas arranged alternately in the horizontal direction. The lower base layer is densely woven from non-elastic high-strength yarn. The lower base layer interweaves with the striped interlacing areas of the upper texture layer through interlacing lines. The striped texture areas of the upper texture layer protrude on the lower base layer and form multiple stair-shaped textures arranged sequentially in the horizontal direction.

2. The staircase fabric as described in claim 1, characterized in that: The height of each step in the stair-like texture is 1-2 mm, and the spacing between adjacent steps is 1-2 mm.

3. The staircase fabric as described in claim 1, characterized in that: The staircase fabric is woven using a double-sided knitting machine with an 8-row knitting cycle. Rows 1-3 weave the upper textured layer, row 2 weaves the striped textured area, and the elastic yarn is 28S spandex-nylon blended yarn. Rows 4-6 weave the lower base layer, and the non-elastic high-strength yarn is 30S polyester high-twist yarn. Rows 7-8 are the fixed weave between the striped interlacing area of ​​the upper textured layer and the lower base layer.

4. The staircase fabric as described in claim 3, characterized in that: In the 28S spandex-nylon blended yarn, the weaving density of the striped texture area is 55%-65% of that of the striped interlacing area.

5. The staircase fabric as described in claim 4, characterized in that: The loop length of the 28S spandex-nylon blended yarn is 210-230 mm / 100 g.

6. The staircase fabric as described in claim 3, characterized in that: The longitudinal weaving density of the lower base layer is 1.1-1.2 times that of the striped interlacing area in the upper texture layer.

7. The staircase fabric as described in claim 3, characterized in that: When the lower base layer is woven in the 4th to 6th rows, the 30S polyester high twist yarn is fed in two parallel strands.

8. The staircase fabric as described in claim 7, characterized in that: The loop length of the 30S polyester high-twist yarn is 160-180MM / 100G.

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