A stretch fabric

Abstract

The utility model discloses a four-way stretch fabric belongs to the field of textile, including the warp and weft that interweave each other, and the warp includes the surface warp and the inside warp belonging to two systems respectively, and the surface warp and weft interweave into the surface layer, and the inside warp and weft interweave into the bottom layer, and the surface warp is no elastic yarn, and the inside warp and weft are low elastic yarn, and the low elastic yarn's elastic elongation is below 60%, and the elastic recovery rate is above 70%, and the weight of inside warp accounts for 3%~40% of four-way stretch fabric weight, and the number ratio of surface warp and inside warp is 6:1~1:5. The fabric has four-way elasticity, and the elasticity is better, and the surface layer restricts the excessive stretching of the bottom layer, and the surface warp shields the inside warp to avoid the inside warp disturbing the surface layer pattern to some extent, and the fabric is not prone to bulging after multiple stretching and recovery, and is not prone to wrinkling after home washing, and the size is relatively stable, and the shape retention is good, and the fabric is more easily stretched, and the wearing is comfortable.

Description

Technical Field

[0001] This utility model relates to a four-way stretch fabric, belonging to the textile field. Background Technology

[0002] Denim clothing has stood the test of time in the fashion world for over a century, favored for its unique distressed, retro, sturdy, and heavy style, making it an irreplaceable fashion element in the clothing market. With changing lifestyles, people's pursuit of denim clothing has moved beyond just the washed and distressed look; they now place greater emphasis on comfort and functionality. Elastic denim fabric offers a degree of stretch, allowing for freedom of movement and comfortable wear. However, while traditional elastic denim fabrics possess some stretch, they are prone to bulging after stretching and home washing, and their unstable shrinkage rate leads to wrinkling and poor shape retention. Therefore, existing elastic denim fabrics need improvement. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a four-way stretch fabric that is not prone to bulging or wrinkling and has good shape retention.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A four-way stretch fabric includes interwoven warp and weft yarns. The warp yarns include a face warp and an inner warp belonging to two separate systems. The face warp and the weft yarns interweave to form a surface layer, and the inner warp and the weft yarns interweave to form a bottom layer. The face warp is a non-elastic yarn, and the inner warp and the weft yarns are low-elastic yarns. The elastic elongation of the low-elastic yarn is below 60%, and the elastic recovery rate is above 70%. The weight of the inner warp accounts for 3% to 40% of the weight of the four-way stretch fabric, and the ratio of the number of face warp yarns to the number of inner warp yarns is 6:1 to 1:5.

[0006] The four-way stretch fabric provided in this application utilizes a double-layered structure to give the fabric better layering and structural stability. The outer layer can focus on showcasing the appearance and style, while the inner layer provides support and elasticity. The non-stretch outer warp limits excessive stretching of the inner warp and weft yarns, ensuring that the fabric can return to its original shape well after stretching. The elasticity of the inner warp and weft yarns allows the fabric to have a certain degree of elasticity in all directions, meeting the wearer's need for free movement. The low weight ratio of elastic yarns ensures that the fabric has good elasticity without being too soft and losing a certain degree of crispness, and without being too tight. The ratio of outer warp to inner warp yarns results in a relatively flat fabric surface, and the outer warp can effectively cover the inner warp, preventing the inner warp from affecting the texture of the outer layer.

[0007] Furthermore, the elastic elongation of the low-elastic yarn is 5% to 55%.

[0008] Within this range, the fabric's elasticity is more moderate, allowing it to exhibit good elasticity when subjected to relatively small external stretching forces, and it can quickly recover after stretching, without being difficult to recover due to the fabric's ability to allow for large yarn stretching.

[0009] Furthermore, the number of weave points in the minimum weave cycle of the surface layer is 1 to 4 times that of the number of weave points in the minimum weave cycle of the bottom layer. The surface layer ensures the appearance quality and basic strength of the fabric, while the bottom layer provides good elasticity and flexibility.

[0010] Furthermore, the surface layer has a twill weave structure. Twill weave structures possess unique appearance and performance characteristics. From an aesthetic perspective, twill gives the fabric a classic and fashionable texture, which aligns with the traditional style requirements of denim fabric and satisfies consumers' aesthetic demands for its appearance.

[0011] Furthermore, the underlying weave structure is a double-plain weave. This double-plain weave structure fully utilizes the elastic properties of the low-elasticity yarns in both the warp and weft, providing excellent elastic support in the weft direction. When the fabric is stretched in the weft direction, the double-plain weave structure effectively disperses the tension, preventing localized overstretching and bulging. Simultaneously, the relatively tight weave of the double-plain weave structure allows it to quickly return to its original shape after stretching, ensuring the fabric's dimensional stability. Combined with the twill weave structure of the surface layer, the surface layer provides good appearance and warp strength, while the underlying weave provides weft elasticity and stability. The synergistic effect of both results in good elasticity and shape retention in all directions, improving the overall performance of the fabric.

[0012] Furthermore, the outer diameter is thicker than the inner diameter.

[0013] A thicker outer warp can conceal part of the inner warp, making the fabric look cleaner. This combination of thick and thin warps optimizes the fabric's appearance and performance. During wear, the wearer can feel the elasticity and comfort provided by the inner warp while ensuring the fabric surface remains smooth and beautiful, thus enhancing the fabric's quality.

[0014] Furthermore, the number of branches of the inner meridian is 2 to 6 times the number of branches of the outer meridian.

[0015] A finer inner warp thread better suits its function as an elastic yarn, offering greater flexibility during stretching and superior elastic recovery. Furthermore, the finer warp thread is better concealed at the bottom layer, preserving the appearance of the outer layer and allowing the fabric to maintain its classic denim look while retaining excellent elasticity.

[0016] Furthermore, the weft yarn is thicker than the inner warp yarn.

[0017] Thicker weft yarns enhance the fabric's strength and stability in the weft direction. During stretching, the weft yarns can withstand greater tension, reducing the risk of deformation or tearing due to overstretching. Simultaneously, the thicker weft yarns compared to the inner warp help to better conceal the inner warp within the fabric structure.

[0018] Furthermore, the inner warp is a core-spun yarn, comprising a spandex core and a chemical fiber covering layer covering the surface of the spandex core.

[0019] Furthermore, the weft yarn is at an angle of 10° to 75° to the fabric width direction. When the fabric is stretched, the inclined structure reduces the constraint during stretching. This inclination allows the fabric to better return to its original shape after stretching because the interaction forces between the warp and weft yarns are more rationally distributed during stretching and recovery.

[0020] The beneficial effects of this utility model are: the four-way stretch fabric of this utility model adopts a double-layer fabric structure, which combines yarns of specific specifications to make the fabric elastic in four directions with good elasticity. The outer layer restricts the excessive stretching of the inner layer, and the outer warp to a certain extent covers the inner warp to avoid the inner warp disturbing the texture of the outer layer. After the fabric has been stretched and recovered many times, it is not easy for the fabric to bulge. It is not easy to wrinkle after household washing, the size is relatively stable, the shape retention is good, the fabric is easier to stretch, and it is comfortable to wear.

[0021] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0022] Figure 1 This is a structural diagram of a four-way stretch fabric provided in an embodiment of this application.

[0023] Figure 2 This is a minimum weave cycle diagram of the surface layer of a four-way stretch fabric provided in an embodiment of this application.

[0024] Figure 3 This is a minimum weave cycle diagram of the bottom layer of a four-way stretch fabric provided in this application embodiment.

[0025] Figure 4 This is a schematic diagram of the structure of an inner channel provided in an embodiment of this application.

[0026] Figure reference numerals: 102, spandex core wire; 101, chemical fiber coating layer. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] The following disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0029] This application provides a four-way stretch fabric, comprising interwoven warp and weft yarns. The warp yarns include a face warp and an inner warp belonging to two separate systems. The face warp and weft yarns interweave to form the surface layer, and the inner warp and weft yarns interweave to form the bottom layer. The face warp is a non-elastic yarn, and the inner warp and weft yarns are low-elastic yarns. The elastic elongation of the low-elastic yarn is below 60%, and the elastic recovery rate is above 70%. The weight of the inner warp accounts for 3% to 40% of the weight of the four-way stretch fabric, and the ratio of the number of face warp yarns to the number of inner warp yarns is 6:1 to 1:5.

[0030] When worn, the body's movements stretch the fabric in both the warp and weft directions. The elastic recovery rate of the low-elasticity yarn ensures that the fabric does not lose its shape due to frequent stretching. The inner warp provides elasticity in the warp direction, while the outer warp, being a non-elastic yarn, restricts the stretching of the inner warp, resulting in good warp recovery and hindering dimensional changes in the warp direction, thus maintaining relative stability. The elasticity provided by the inner warp is concentrated in the bottom layer, ensuring a certain level of elasticity while maintaining a more stable surface appearance. This ratio optimizes the overall performance of the fabric while ensuring its elasticity.

[0031] In some embodiments, the number of tissue points in the minimum tissue cycle of the surface layer is 1 to 4 times that of the number of tissue points in the minimum tissue cycle of the bottom layer. This is beneficial for the surface layer to restrict the stretching of the bottom layer and for the surface layer to visually conceal the inner layer.

[0032] like Figure 1 In the illustrated embodiment, the top layer has a twill weave and the bottom layer has a flat weave. Figure 1 In the textile industry, according to convention, filled squares represent warp points on the front side of the process, while unfilled squares represent weft points on the front side. Meanwhile, Figure 1The warp threads are numbered using Arabic numerals, the inner warp threads using lowercase letters, and the weft threads using uppercase letters. For example, the cell in column 2, row A represents the interlacing point of the warp and weft threads, where the weft threads overlap the warp threads to form the weft weave point. In this embodiment, the ratio of the number of warp threads to the number of inner warp threads is 3:1.

[0033] For ease of understanding, Figure 1 Split into Figure 2 and Figure 3 , Figure 2 It is the minimum structure cycle diagram of the surface layer, so only the interlacing behavior of the surface warp and weft yarns is visible; Figure 3 This is the minimum weave repeat diagram of the bottom layer, so only the interlacing behavior of the warp and weft yarns is visible. It can be seen that the surface layer is a 3-up-1-down twill weave, and the bottom layer is a 2-up-2-down warp plain weave. The number of weave points in the minimum weave repeat of the surface layer is twice the number of weave points in the minimum weave repeat of the bottom layer.

[0034] In some embodiments, the outer warp is thicker than the inner warp, and the inner warp is easily hidden by the outer warp. This allows the four-way stretch fabric to have warp elasticity while maintaining the traditional twill style of denim fabric. Preferably, the thread count of the inner warp is 2 to 6 times that of the outer warp. The inner warp is more tightly interwoven in the bottom layer, which can effectively limit the excessive stretching of the weft yarns and improve the dimensional stability of the fabric. In addition, the weft yarns are thicker than the inner warp, and the weft yarns also help to hide the inner warp. The minimum weave repeat of the outer layer has 1 to 4 times the number of weave repeats of the bottom layer, making the fabric tightly interwoven. When the weft yarns shrink, they are restricted by the warp yarns, thereby effectively ensuring the dimensional stability of the fabric and giving the fabric good resilience.

[0035] Preferably, the elastic elongation of the low-elastic yarn is 5% to 55%. Under the stretching caused by minor daily movements, it can quickly return to its original shape, reducing the possibility of wrinkling. Furthermore, it provides sufficient stretching space for larger movements, such as bending over or stretching. This range of elastic elongation allows the fabric to better meet the needs of human activity in various wearing scenarios, and it maintains its shape even after repeated stretching, reducing bulging and wrinkling, thus improving the fabric's durability and wearing comfort.

[0036] In some embodiments, refer to Figure 4 The inner warp is a core-spun yarn, comprising a spandex core 102 and a chemical fiber covering layer 101 covering the surface of the spandex core 102. The chemical fiber covering layer covering the surface of the spandex core protects the spandex core and also imparts a certain degree of abrasion resistance and strength to the inner warp, reducing yarn damage caused by friction and thus improving the production efficiency and quality of the fabric.

[0037] Preferably, the weft yarn forms an angle of 10° to 75° with the fabric width direction. This angle can be achieved by oblique cutting after the fabric is woven. This inclination allows the fabric to meet the wearer's deformation needs during activity, even though the surface layer restricts the stretch of the underlying layer. For example, the fabric is more easily stretched when the human body performs bending or twisting movements, improving wearing comfort.

[0038] Based on the organizational structure and yarn specifications of the embodiments of this application, the fabric has good recovery after stretching, which greatly reduces quality problems such as bulging. The shrinkage rate of the fabric after washing is easy to control and stable, effectively ensuring the dimensional stability of the finished garment and promoting wearing comfort.

[0039] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A four-way stretch fabric, comprising interwoven warp and weft yarns, characterized in that, The warp yarns include a face warp and a back warp belonging to two separate systems. The face warp is interwoven with the weft yarn to form the surface layer, and the back warp is interwoven with the weft yarn to form the bottom layer. The face warp is a non-elastic yarn, and the back warp and the weft yarn are low-elastic yarns. The elastic elongation of the low-elastic yarn is below 60%, and the elastic recovery rate is above 70%. The weight of the back warp accounts for 3% to 40% of the weight of the four-way stretch fabric, and the ratio of the number of face warp yarns to the number of back warp yarns is 6:1 to 1:

5.

2. The four-way stretch fabric according to claim 1, characterized in that, The elastic elongation of the low-elastic yarn is 5% to 55%.

3. The four-way stretch fabric according to claim 1, characterized in that, The number of tissue points in the minimum tissue cycle of the surface layer is 1 to 4 times the number of tissue points in the minimum tissue cycle of the bottom layer.

4. The four-way stretch fabric according to claim 3, characterized in that, The surface layer has a twill weave structure.

5. The four-way stretch fabric according to claim 4, characterized in that, The underlying organizational structure is flat.

6. The four-way stretch fabric according to claim 4, characterized in that, The outer diameter is thicker than the inner diameter.

7. The four-way stretch fabric according to claim 6, characterized in that, The number of branches in the inner meridian is 2 to 6 times the number of branches in the outer meridian.

8. The four-way stretch fabric according to claim 1, characterized in that, The weft yarn is thicker than the inner warp yarn.

9. The four-way stretch fabric according to claim 1, characterized in that, The inner warp is a core-spun yarn, comprising a spandex core and a chemical fiber covering layer covering the surface of the spandex core.

10. The four-way stretch fabric according to claim 1, characterized in that, The weft yarn is at an angle of 10° to 75° to the width direction of the fabric.

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