A non-slip stretch denim fabric

Abstract

The utility model discloses a kind of anti-skid elastic cowboys fabric, belong to textile field, including interlaced warp and weft, weft includes elastic core-spun yarn, elastic core-spun yarn includes yarn core and the cotton covering yarn of winding yarn core, yarn core includes spandex filament and T400 filament, in same elastic core-spun yarn, spandex filament and T400 filament 1:1 side by side, cotton covering yarn is back and forth wound spandex filament and T400 filament with "8" shape.Closely contact between spandex filament and cotton covering yarn, T400 filament also closely contact with cotton covering yarn, cotton covering yarn does not have elasticity and is tightly wound two parallel chemical fibers, so that spandex filament and T400 fiber are not easy to occur relative slip, two chemical fibers cannot self-winding, so that fabric is stretched or bent when subjected to external force, cloth surface is not easy to appear strip mark, the problem of sliding and elastic.

Description

Technical Field

[0001] This utility model relates to a non-slip elastic denim fabric, belonging to the textile field. Background Technology

[0002] Since its introduction to China, denim clothing has seen a gradual increase in market share. Traditional denim clothing is made of cotton and linen fibers, known for its durability. To meet growing consumer demand, advancements in production technology have led to the emergence of functional denim garments woven from functional fibers. As the casual appeal of denim clothing has become more apparent, stretch denim clothing has become the mainstream. Stretch denim clothing requires elastic yarns, typically core-spun yarns, using elastic synthetic fibers as the core and short fibers such as cotton as the covering material. Spandex is commonly used as the elastic synthetic fiber. However, spandex itself has relatively low strength. When using elastic yarns with spandex as the core, the spandex is prone to breakage after repeated stretching during use, affecting the fabric's elasticity. With technological advancements, researchers have begun introducing T400 fiber into elastic core-spun yarns, which can meet the strength requirements of elastic core-spun yarns. However, when fabrics made of spandex-T400 double-core yarn are stretched or bent by external forces, the two core yarns are prone to relative slippage, which can easily lead to defects such as streaks and slippage on the fabric surface, seriously affecting the quality of the fabric. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a non-slip elastic denim fabric that is less prone to streaks and slippage when the yarn is stretched or bent.

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

[0005] A non-slip elastic denim fabric includes interwoven warp and weft yarns, wherein the weft yarns include elastic core-spun yarn, the elastic core-spun yarn includes a yarn core and a cotton-covered yarn wrapped around the yarn core, the yarn core includes spandex filaments and T400 filaments, wherein in the same elastic core-spun yarn, the spandex filaments and the T400 filaments are arranged side by side in a 1:1 ratio, and the cotton-covered yarn is wound back and forth around the spandex filaments and the T400 filaments in a figure-eight pattern.

[0006] The weft yarn adopts a design including a special structure elastic core-spun yarn. This structure allows the two core yarns to be tightly bound by the cotton-covered yarn, making it less prone to relative slippage. This effectively avoids defects such as streaks and slippage on the fabric surface when the fabric is stretched or bent by external forces, thus improving the fabric quality. At the same time, the figure-eight winding method enhances the stability of the wrapping, making the overall structure of the yarn more stable and conducive to maintaining good performance during weaving and use.

[0007] Furthermore, the wrapping angle of the cotton-covered yarn is 45°~60°.

[0008] Within this angle range, sufficient gripping force can be ensured for both spandex filament and T400 filament to effectively prevent relative slippage of the two core yarns, while avoiding the impact of excessively large or small wrapping angles on the yarn's flexibility and overall structural stability. This ensures that the fabric maintains good elasticity while preserving its appearance quality and reducing defects.

[0009] Furthermore, the wrapping density of the cotton-covered yarn is 15 turns / cm to 20 turns / cm.

[0010] Such wrapping density allows the cotton-covered yarn to provide a stable and appropriate binding force to the core yarn, ensuring that the two core yarns are always in a relatively stable positional relationship. This further prevents fabric defects caused by core yarn slippage during weaving and fabric use, while also taking into account the overall elasticity of the yarn and the fixing effect of the cotton-covered yarn on the chemical fiber.

[0011] Furthermore, the T400 filament is thicker than the spandex filament. The thicker T400 filament provides better support in the yarn core structure and, when combined with the spandex filament, optimizes the overall mechanical properties of the yarn.

[0012] Furthermore, the spandex filament has a denier of 40D.

[0013] Furthermore, the denier of the T400 filament is 75D.

[0014] Furthermore, the spandex filament has a wavy structure. During the washing process, when some of the spandex shrinks due to the action of chemical reagents, its pre-existing curvature can counteract this shrinkage, ensuring the yarn elasticity, reducing the elasticity loss of the spandex itself, maintaining the elastic properties of the fabric, and extending the service life of the fabric.

[0015] Furthermore, the weft yarn also includes a hot-melt yarn arranged alongside the elastic core-spun yarn.

[0016] Furthermore, the weaving ratio of the elastic core-spun yarn to the hot-melt yarn is 4:1. This ratio allows the hot-melt yarn to effectively play its bonding role and enhance the structural stability of the fabric, while preventing excessive hot-melt yarn from affecting other properties of the fabric such as elasticity. This ensures that the fabric has good elasticity while achieving structural stability and improving overall quality.

[0017] Furthermore, the warp yarns and the weft yarns are interwoven in a three-up-one-down twill pattern.

[0018] The beneficial effects of this utility model are as follows: The anti-slip elastic denim fabric of this utility model uses elastic core-spun yarn with a special structure as the weft yarn. The spandex filament is in close contact with the cotton-covered yarn, and the T400 filament is also in close contact with the cotton-covered yarn. The cotton-covered yarn has no elasticity and is tightly wrapped around two parallel chemical fibers, which makes it difficult for the spandex filament and T400 fiber to slip relative to each other. The two chemical fibers cannot entangle themselves, so that when the fabric is stretched or bent by external force, the fabric surface is not prone to streaks or slippage.

[0019] 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

[0020] Figure 1 This is a schematic diagram of the winding structure of an elastic core-spun yarn provided in an embodiment of this application.

[0021] Figure 2 This is a side view structural diagram of an elastic core-spun yarn provided in an embodiment of this application.

[0022] Figure 3 This is a structural schematic diagram of an anti-slip elastic denim fabric provided in an embodiment of this application.

[0023] Attached reference numerals: 1. Warp yarn; 21. Spandex filament; 22. T400 filament; 23. Cotton-covered yarn; 3. Hot melt yarn; 2. Elastic core-spun yarn. Detailed Implementation

[0024] 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.

[0025] 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.

[0026] Due to the significant difference in the surface friction coefficients of spandex and T400 fiber, traditional wrapping structures struggle to create a stable gripping force.

[0027] Reference Figures 1 to 3 This application provides an anti-slip elastic denim fabric, including interwoven warp yarns 1 and weft yarns. The weft yarn includes elastic core-spun yarn 2, which includes a yarn core and a cotton-covered yarn 23 wrapped around the yarn core. The yarn core includes spandex filament 21 and T400 filament 22. In the same elastic core-spun yarn 2, the spandex filament 21 and T400 filament 22 are arranged side by side in a 1:1 ratio, and the cotton-covered yarn 23 wraps around the spandex filament 21 and T400 filament 22 in a figure-eight pattern.

[0028] The "8" winding method, compared to the traditional method of winding two yarns into the same loop, increases the restraint of the cotton-covered yarn on the spandex filament and T400 filament, more effectively fixing the two filaments in the yarn core and preventing them from slipping relative to each other during use. This avoids defects such as streaks and slippage on the fabric surface, improving the overall quality of the fabric.

[0029] Spandex filament primarily provides the elasticity required by the fabric, while the addition of T400 filament, while providing some elasticity, more importantly enhances the yarn's strength and elastic recovery performance. Spandex filament and T400 filament are arranged side-by-side in a 1:1 ratio. This configuration aims to balance the fabric's elasticity and strength requirements, ensuring that the fabric possesses both good tensile properties and sufficient durability.

[0030] Specifically, the wrapping angle of the cotton-covered yarn 23 is 45°~60°. Within this angle range, the cotton-covered yarn can effectively hold the spandex filaments and T400 filaments, avoiding both insufficient restraint due to an excessively small angle and excessive tension in the yarn. This achieves a balance between ensuring the cotton-covered yarn's fixation of the spandex and T400 filaments and maintaining the overall elasticity of the yarn. When the wrapping angle is set between 45° and 60°, the cotton-covered yarn wraps around the spandex and T400 filaments with appropriate tightness, forming an effective restraint structure. Due to the moderate wrapping angle, the cotton-covered yarn does not excessively restrict the yarn core, allowing the elastic core-spun yarn to maintain good elasticity and ensuring the fabric's performance. Conversely, if the wrapping angle is less than 45°, the loop spacing of the wrapped synthetic fiber is more easily increased, weakening the constraint of the cotton-covered yarn on the yarn core and reducing the fixing effect. If the wrapping angle is greater than 60°, it may lead to an overly tight yarn structure, affecting the yarn's elasticity. Therefore, the wrapping angle range of 45° to 60° is an optimized selection that allows the cotton-covered yarn to effectively fix the yarn core while also taking into account the elasticity of the elastic yarn, ultimately improving fabric quality.

[0031] Accordingly, the wrapping density of the cotton-covered yarn is 15 to 20 turns / cm. This density control allows the cotton-covered yarn layer to apply sufficient pressure to the internal spandex and T400 filaments, thereby limiting the relative movement of the two yarn cores. When the fabric is subjected to tensile or bending forces, the increased friction effectively prevents the spandex and T400 filaments from slipping, thus avoiding defects such as fabric streaks and slippage, and ensuring fabric quality. Within the preferred range, effective fixation of the yarn cores is achieved, while avoiding yarn stiffness caused by excessive density, ensuring that the fabric has both good anti-slip properties and maintains suitable elasticity.

[0032] This application further proposes that the T400 filament 22 is thicker than the spandex filament 21. Due to the greater thickness of the T400 filament 22, the contact area between the T400 filament 22 and the cotton-covered yarn 23 is increased. When the anti-slip elastic denim fabric is stretched by an external force, the thicker T400 filament 22 can provide greater friction, thereby more effectively limiting the relative slippage between the T400 filament 22 and the spandex filament 21. In addition, the thicker T400 filament 22 also provides greater strength to the elastic core-spun yarn 2, making it less prone to breakage, thus protecting the spandex filament 21, reducing the likelihood of the spandex filament 21 being stretched to the point of breakage, and ensuring the fabric's elastic recovery performance and service life.

[0033] For example, the spandex filament 21 has a denier of 40D, while the T400 filament 22 has a denier of 75D. The 40D spandex filament 21 is relatively fine, and when placed alongside the coarser T400 filament 22, it allows the T400 filament 22 to occupy a larger proportion of the yarn, thereby improving the yarn's strength and stability. Simultaneously, the finer spandex filament 21 is more easily covered by the cotton-covered yarn 23, and the 40D spandex filament also provides good elasticity and resilience. The 75D T400 filament provides sufficient strength for the elastic core-spun yarn while ensuring good elasticity and resilience.

[0034] Preferably, the spandex filament 21 has a wavy structure. The wavy structure of the spandex filament can be achieved in various ways, such as by using air-jet deformation technology during the production process to treat the spandex filament, resulting in a wavy or crimped structure. The wavy structure can be a regular sinusoidal waveform, or an irregular sawtooth shape or other curved shape.

[0035] When denim fabrics undergo a washing and distressing process, the chemicals used in the washing can easily cause the spandex filaments to shrink. Because the spandex filaments are pre-formed into a wavy structure, this structure allows for stretch within the yarn. During the washing and distressing process, even if the spandex shrinks due to the chemicals, the wavy structure can counteract the shrinkage, preventing excessive shrinkage and maintaining the stability of the elastic core-spun yarn structure. This ensures the dimensional stability of the denim fabric and reduces the risk of defects such as streaks and slippage, ultimately improving the fabric quality.

[0036] This application further proposes that the weft yarn also includes a heat-fused yarn 3 arranged alongside the elastic core-spun yarn 2. The heat-fused yarn refers to yarn that melts at a relatively low temperature (110℃~150℃). During the weaving process, the elastic core-spun yarn and the heat-fused yarn are simultaneously woven into the fabric as weft yarns. In subsequent finishing processes, the fabric is heated, and the heat-fused yarn melts. After cooling, the melted heat-fused yarn solidifies, fixing adjacent warp and weft yarns, especially the elastic core-spun yarn, together. This can, to a certain extent, restrict the relative movement between the warp and weft yarns, limiting warp and weft slippage.

[0037] In some specific implementations, the weft yarn is composed of two types of yarn: elastic core-spun yarn and hot-melt yarn, which are arranged alternately in the weft direction.

[0038] In a preferred embodiment, the weaving ratio of elastic core-spun yarn 2 to hot melt yarn 3 is 4:1, which can improve the anti-slip performance of the denim fabric while ensuring good elasticity. This ensures that while providing sufficient anti-slip effect, the adverse effects of hot melt yarn on the original elasticity and hand feel of the fabric are minimized, thus maintaining the fabric's performance and comfort.

[0039] Specifically, warp yarn 1 and weft yarn are interwoven in a 3-up-1-down twill pattern. The warp yarn, for example, is indigo-dyed cotton yarn, which can create the unique texture and structural characteristics of denim. The structural feature of the 3-up-1-down twill pattern is that there are more warp points than weft points on the front side of the fabric. This makes the weft yarn more visible on the back side of the fabric. When elastic core-spun yarn is woven in as the weft yarn, it helps to reduce the possibility of defects such as streaks and slippage on the fabric surface after the elastic core-spun yarn is overstretched.

[0040] 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, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] 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 non-slip elastic denim fabric, comprising interwoven warp yarns (1) and weft yarns, characterized in that, The weft yarn includes elastic core-spun yarn (2), which includes a yarn core and a cotton-covered yarn (23) wrapped around the yarn core. The yarn core includes spandex filament (21) and T400 filament (22). In the same elastic core-spun yarn (2), the spandex filament (21) and the T400 filament (22) are arranged side by side in a 1:1 ratio. The cotton-covered yarn (23) wraps back and forth around the spandex filament (21) and the T400 filament (22) in a figure-eight pattern.

2. The anti-slip elastic denim fabric according to claim 1, characterized in that, The wrapping angle of the cotton-covered yarn (23) is 45°~60°.

3. The anti-slip elastic denim fabric according to claim 2, characterized in that, The wrapping density of the cotton-covered yarn (23) is 15 loops / cm to 20 loops / cm.

4. The anti-slip elastic denim fabric according to claim 1, characterized in that, The T400 filament (22) is thicker than the spandex filament (21).

5. The anti-slip elastic denim fabric according to claim 4, characterized in that, The spandex filament (21) has a denier of 40D.

6. The anti-slip elastic denim fabric according to claim 5, characterized in that, The denier of the T400 filament (22) is 75D.

7. The anti-slip elastic denim fabric according to claim 1, characterized in that, The spandex filament (21) has a wavy structure.

8. The anti-slip elastic denim fabric according to claim 1, characterized in that, The weft yarn also includes a hot melt yarn (3) arranged alongside the elastic core-spun yarn (2).

9. The anti-slip elastic denim fabric according to claim 8, characterized in that, The weaving ratio of the elastic core-spun yarn (2) to the hot melt yarn (3) is 4:

1.

10. The anti-slip elastic denim fabric according to claim 1, characterized in that, The warp yarn (1) and the weft yarn are interwoven in a three-up-one-down twill pattern.

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