elastic fabric

Abstract

This utility model discloses an elastic fabric, relating to the textile field. The key technical points are: it includes a base layer comprising reinforcing yarns and elastic yarns. The base layer is divided into alternating extended sections and breathable sections along the transverse direction. The density of the reinforcing yarns in the extended sections is less than the density of the elastic yarns. The reinforcing and elastic yarns are alternately arranged in the breathable sections, forming a breathable mesh between adjacent reinforcing and elastic yarns. In this utility model, the proportion of reinforcing yarns in the breathable sections is greater than that in the extended sections. The reinforcing yarns are made of three strands of nylon fiber bundles twisted together. The tensile strength of nylon fiber bundles is superior to that of polyester and spandex fiber bundles, meaning the extended sections are more prone to deformation than the breathable sections. Therefore, the deformation is concentrated in the extended sections, reducing the deformation of the breathable sections. Combined with the excellent tensile strength of the reinforcing yarns, this reduces the possibility of plastic deformation in the breathable sections.

Description

Technical Field

[0001] This utility model relates to the textile field, and more specifically, to an elastic fabric. Background Technology

[0002] Knitted fabric refers to raw fabric woven through knitting processes (warp knitting or weft knitting) without dyeing and finishing. It is an important raw material for the production of clothing, home textiles and other knitted products. It has unique elasticity and breathability. In order to further improve elasticity, knitted fabric will adopt a thinner knitting structure, making the fabric easy to stretch. However, when the thin fabric is stretched, it is easy to produce plastic deformation around the mesh structure. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an elastic fabric.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an elastic fabric, including a base layer, the base layer including reinforcing yarn and elastic yarn, the base layer being divided into alternating extended portions and breathable portions along the transverse direction, the density of the reinforcing yarn on the extended portion being less than the density of the elastic yarn on the extended portion, the reinforcing yarn and elastic yarn being alternately arranged on the breathable portion, and a breathable mesh being formed between adjacent reinforcing yarns and elastic yarns.

[0005] The present invention is further configured such that: the elastic yarn forms a variable warp plain weave, and the reinforcing yarn forms alternating warp plain weave and braided chain weave.

[0006] The present invention is further configured such that: the padding yarn of the elastic yarn is 1-0 / 2-3 / 2-1 / 2-3 / 1-0 / 1-2 / / one thread, one empty, two threads, one empty; and the padding yarn of the reinforcing yarn is 2-3 / 2-3 / 3-4 / 3-2 / 3-2 / 2-1 / / one thread, two empty, one thread, one empty.

[0007] The present invention is further configured such that the elastic yarn is composed of spandex fiber bundles and polyester fiber bundles wrapped around the spandex fiber bundles.

[0008] The present invention is further configured such that the reinforcing yarn is made of twisted nylon fiber bundles.

[0009] The present invention is further configured such that the twist direction of the polyester fiber bundle is opposite to that of the nylon fiber bundle.

[0010] In summary, this utility model has the following beneficial effects: the proportion of reinforcing yarn in the breathable part is greater than that in the extended part, and the reinforcing yarn is made of three strands of nylon fiber bundles twisted together. The tensile strength of the nylon fiber bundles is better than that of polyester fiber bundles and spandex fiber bundles. That is, the extended part is more prone to deformation than the breathable part. Therefore, the deformation is concentrated in the extended part, reducing the deformation of the breathable part. Combined with the excellent tensile strength of the reinforcing yarn, the possibility of plastic deformation in the breathable part is reduced. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the elastic yarn in this utility model;

[0012] Figure 2 This is a schematic diagram of the reinforcing yarn in this utility model. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0014] Example: An elastic fabric, such as Figure 1 , Figure 2 As shown, it includes a base layer, which includes reinforcing yarns and elastic yarns. The base layer is divided into alternating extension sections and breathable sections along the transverse direction. The density of the reinforcing yarns on the extension sections is less than the density of the elastic yarns on the extension sections. The reinforcing yarns and elastic yarns are alternately arranged on the breathable sections. A breathable mesh is formed between adjacent reinforcing yarns and elastic yarns. The elastic yarns are composed of spandex fiber bundles and polyester fiber bundles wrapped around the spandex fiber bundles. The reinforcing yarns are made of twisted nylon fiber bundles.

[0015] Specifically, the base layer is formed by warp knitting reinforcing yarn and elastic yarn together. Both the reinforcing and elastic yarns are arranged linearly in groups in the transverse direction. The number of stitches per cycle for the reinforcing yarn is the same as the number of stitches per cycle for the elastic yarn. This means that each cycle includes a breathable section and an extension section. The elastic yarn consists of three polyester fiber bundles wound around a single spandex fiber bundle. The spandex fiber bundle has good extensibility, and the polyester fiber bundle has better abrasion resistance than the spandex fiber bundle. This ensures that the polyester fiber bundle outside the spandex fiber bundle not only reduces wear on the spandex fiber bundle but also limits excessive stretching. Compared to the breathable section, the extension section... The fabric has a higher proportion of elastic yarns, making the extended section easier to stretch and deform elastically. The breathable mesh is formed between the elastic yarns and the reinforcing yarns. The breathable section is formed by alternating reinforcing and elastic yarns, creating more breathable meshes and ensuring the breathability of the fabric. Furthermore, the proportion of reinforcing yarns in the breathable section is higher than that in the extended section. The reinforcing yarns are made of three strands of nylon fiber bundles twisted together. The tensile strength of nylon fiber bundles is better than that of polyester and spandex fiber bundles, meaning that the extended section is more prone to deformation than the breathable section. Therefore, the deformation is concentrated in the extended section, reducing the deformation of the breathable section. Combined with the excellent tensile strength of the reinforcing yarns, the possibility of plastic deformation in the breathable section is reduced.

[0016] like Figure 1 , Figure 2 As shown, the elastic yarn forms a varied warp plain weave, while the reinforcing yarn forms alternating warp plain and chain weaves. The padding yarn numbers for the elastic yarn are 1-0 / 2-3 / 2-1 / 2-3 / 1-0 / 1-2 / / one thread, one gap, two threads, one gap, and the padding yarn numbers for the reinforcing yarn are 2-3 / 2-3 / 3-4 / 3-2 / 3-2 / 2-1 / / one thread, two gaps, one thread, one gap, and the twist direction of the polyester fiber bundle is opposite to that of the nylon fiber bundle.

[0017] Specifically, the elastic yarn forms a plain warp weave, and by locally extending the path of the needle back lateral movement, the elasticity of the elastic yarn is highlighted, thereby further improving the extensibility of the greige fabric. The open chain weave formed by the reinforcing yarn allows the reinforcing yarn to form more loops per unit path length. At the same time, the polyester fiber bundles on the surface of the elastic yarn and the nylon fiber bundles constituting the reinforcing yarn have opposite twist directions, which increases the friction between the elastic yarn and the reinforcing yarn, strengthens the connection between the elastic yarn and the reinforcing yarn, and prevents changes in the weave structure of the greige fabric due to yarn unraveling.

[0018] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An elastic gray good, characterized by: The base layer includes reinforcing yarns and elastic yarns. The base layer is divided into alternating extended sections and breathable sections along the transverse direction. The density of the reinforcing yarns on the extended sections is less than the density of the elastic yarns on the extended sections. The reinforcing yarns and elastic yarns are alternately arranged on the breathable sections, and a breathable mesh is formed between adjacent reinforcing yarns and elastic yarns.

2. The elastic fabric according to claim 1, characterized in that: The elastic yarn forms a variable warp plain weave, and the reinforcing yarn forms alternating warp plain weave and braided chain weave.

3. The elastic fabric according to claim 2, characterized in that: The padding yarn number of the elastic yarn is 1-0 / 2-3 / 2-1 / 2-3 / 1-0 / 1-2 / / one thread, one empty, two threads, one empty; the padding yarn number of the reinforcing yarn is 2-3 / 2-3 / 3-4 / 3-2 / 3-2 / 2-1 / / one thread, two empty, one thread, one empty.

4. The elastic fabric according to claim 1, characterized in that: The elastic yarn consists of a bundle of spandex fibers and a bundle of polyester fibers wrapped around the spandex fibers.

5. The elastic fabric according to claim 4, characterized in that: The reinforcing yarn is made by twisting nylon fiber bundles.

6. The elastic fabric according to claim 5, characterized in that: The twist direction of the polyester fiber bundle is opposite to that of the nylon fiber bundle.

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