Multi-dimensional elastic all-around jean fabric

By using an outer layer of elastic polyester warp yarn, core-spun yarn, and cotton fiber in the denim fabric, and a weft yarn of nylon and spandex blended yarn, the problem of insufficient elasticity in the longitudinal and transverse directions of denim fabric is solved, the multidimensional elasticity and comfort of the fabric are improved, and the service life is extended.

CN224395157UActive Publication Date: 2026-06-23ZHEJIANG XINLAN TEXTILE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG XINLAN TEXTILE
Filing Date
2025-07-29
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing denim fabrics have insufficient stretchability in both the longitudinal and transverse directions, especially in the warp direction, resulting in discomfort when worn and easy damage to the elastic fibers.

Method used

The design employs a warp yarn of elastic polyester, a warp yarn of spandex with a core-spun yarn structure and an outer layer of cotton fiber, and a weft yarn of nylon and spandex blended yarn. The warp yarn is extended and hidden through a spiral path to provide multi-dimensional elasticity.

Benefits of technology

It achieves uniform elasticity in both the longitudinal and transverse directions of the fabric, extends the fabric's lifespan, improves comfort and aesthetics, and protects the elastic fibers from damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of multi-dimensional elastic full-range jean fabrics, including mutually woven warp and weft, weft has elastic setting, warp includes: warp one, with multiple groups, longitudinal arrangement, and with elasticity;Warp two also has multiple groups, longitudinal and warp one interval distribution, warp two also has elasticity.Compared with prior art, the utility model has the advantages that in weft direction, cotton and spandex blended yarn is used, to provide basic elasticity, in warp direction, elastic polyester provides resilience directly in warp direction, core spandex filament in core yarn provides high elasticity, outer layer spiral cotton fiber extends through spiral path when stretching, weft is stretched to force warp to deform, to further amplify weft elasticity;If spandex is aged after long-term use of core yarn, elastic polyester of warp one can still provide supporting elasticity, to avoid that fabric completely loses resilience, secondly, elastic polyester of warp one is hidden in the inside of jean fabric, to reduce its exposure wear and tear risk.
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Description

Technical Field

[0001] This utility model relates to the field of denim fabric technology, and in particular to a multi-dimensional elastic all-around denim fabric. Background Technology

[0002] Traditional denim fabric is primarily made of cotton fibers, which provide excellent moisture absorption and breathability, durability, and a comfortable feel. To increase elasticity and address the stiffness and restriction of movement in traditional denim, small amounts of elastic fibers, such as spandex or polyester, are often incorporated. This is a common component in modern jeans.

[0003] Most denim fabrics currently on the market incorporate a small amount of elastic fibers into the warp yarns. As a result, the fabric has good stretch and recovery capabilities mainly in the weft direction, but very limited stretch capabilities in the warp direction. It mainly relies on lateral elasticity to achieve a fit. At the same time, the main restrictions on movement in jeans are usually in the lateral dimensions, such as the pressure on the waist when sitting down and the pressure on the buttocks and thighs when squatting, while the demand for longitudinal stretch is relatively small.

[0004] Fully stretch denim fabric offers superior freedom of movement and comfort, especially during longitudinal movements. While adding a small amount of elastic fibers to the warp and weft yarns can achieve a certain degree of stretching and recovery, this ability is limited. Using core-spun yarns for the warp and weft, however, results in continuous friction as the cotton fibers compress the elastic fibers within, easily damaging them. Furthermore, the elastic fibers are pre-stretched 3.5–4.5 times during spinning and tightly bound by cotton fibers, meaning they remain under high tension even when the fabric is not worn, accelerating their fatigue. Utility Model Content

[0005] In view of the above-mentioned problems, the technical problem to be solved by this utility model is to provide a multi-dimensional elastic all-around denim fabric.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a multi-dimensional elastic all-around denim fabric, comprising interwoven warp and weft yarns, wherein the weft yarns are elastically set, and the warp yarns include:

[0007] Meridian 1 has multiple sets, arranged longitudinally, and is flexible;

[0008] Warp 2 also has multiple sets, longitudinally distributed at intervals with warp 1. Warp 2 is also elastic and is a core-spun yarn.

[0009] A further preferred embodiment of this utility model is: the warp yarn is elastic polyester.

[0010] A further preferred embodiment of this utility model is: the second warp includes an inner core and an outer winding layer, the inner core being made of spandex yarn and the outer winding layer being made of cotton fiber.

[0011] A further preferred embodiment of this utility model is: the outer winding layer is linear and spirally extends around the outside of the inner core. When the inner core is stretched, the spiral path of the outer winding layer on the inner core will be lengthened accordingly.

[0012] A further preferred embodiment of this utility model is: the weft yarn is a blended yarn, and the horizontal yarns are interwoven between the longitudinally arranged warp yarns one and two.

[0013] A further preferred embodiment of this utility model is that the blended yarn of the weft thread is made of a uniform mixture of cotton fiber and spandex fiber.

[0014] A further preferred embodiment of this utility model is that both warp one and warp two are dyed indigo.

[0015] A further preferred embodiment of this utility model is that the color of the weft thread is off-white.

[0016] A further preferred embodiment of this utility model is: the diameter of warp two is larger than the diameter of warp one, and after weaving, warp two is used to hide warp one.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] 1. In the weft direction, cotton and spandex blended yarn is used to provide basic elasticity. In the warp direction, elastic polyester directly provides resilience in the warp direction, and the core spandex filament of the core-spun yarn provides high elasticity. The outer spiral cotton fiber extends through the spiral path when stretched, and the weft stretch forces the warp yarn to deform, further amplifying the weft elasticity.

[0019] 2. If the spandex ages after long-term use of the core-spun yarn, the elastic polyester in the first warp yarn can still provide support and elasticity, preventing the fabric from completely losing its resilience. Secondly, the elastic polyester in the first warp yarn is hidden inside the denim fabric, reducing its risk of exposure and wear. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0021] Figure 1 This is a schematic diagram of the interwoven structure of the warp and weft threads of this utility model;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the warp section of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of warp one and warp two of this utility model.

[0024] In the diagram: 1. Warp section; 11. Warp 1; 12. Warp 2; 121. Inner core; 122. Outer winding layer; 2. Latitude. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0026] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0027] This embodiment mainly describes a multi-dimensional elastic all-around denim fabric. Please refer to [link / reference]. Figures 1-3 Specifically, most current denim fabrics incorporate a small amount of elastic fibers into the warp yarns. Even if some elasticity is present, its primary function is to provide good stretch and recovery in the weft direction, with limited elasticity in the warp direction. Furthermore, even if denim fabrics have slight elasticity, its effect mainly impacts wearing comfort. This results in varying levels of comfort for customers with different body types. Therefore, a multi-dimensional elastic, all-around denim fabric is proposed, such as... Figure 1 As shown, it includes a warp section 1 and a weft section 2 that are woven together. The weft section 2 is elastically set. The warp section 1 includes: warp one 11 and warp two 12.

[0028] Meridian 11 has multiple sets, arranged longitudinally, and is flexible;

[0029] Warp 12 also has multiple sets, which are longitudinally distributed at intervals with warp 11. Warp 12 is also elastic and is a core-spun yarn.

[0030] Specifically, weft 2 weaves the alternately arranged warp 11 and warp 22 to form denim fabric. It should be noted that warp 11, warp 212 and weft 2 all have elastic properties, so the denim fabric formed after weaving has elasticity in both the warp and weft directions, achieving multi-dimensional elasticity in denim fabric.

[0031] Warp 11 is made of elastic polyester. Specifically, warp 11 is elastic polyester woven into the denim fabric. When the warp is stretched, warp 11 will deform in the direction of stretching, and can quickly return to its original position when no force is applied, thus giving the denim fabric an elastic effect in the warp direction.

[0032] like Figure 3 As shown, the specific structure of warp yarn 12 is as follows: warp yarn 12 includes an inner core 121 and an outer winding layer 122. The inner core 121 is made of spandex yarn, and the outer winding layer 122 is made of cotton fiber.

[0033] Specifically, the inner core 121 and the outer winding layer 122 form the second warp 12. The outer winding layer 122 is made of cotton fiber. After weaving, the cotton fiber forms the outer layer, providing good comfort to the touch. Simultaneously, the inner core 121 is covered by the outer winding layer 122, protecting it from damage. It should be noted that spandex is a fragile material; if directly exposed, it will easily be damaged. Therefore, being covered allows the second warp 12 to maintain its elasticity while also preventing damage.

[0034] like Figure 3 As shown, the specific structure of warp 12 is as follows: the outer winding layer 122 is linear and spirally extends around the outside of the inner core 121. When the inner core 121 is stretched, the spiral path of the outer winding layer 122 on the inner core 121 will be lengthened accordingly.

[0035] Specifically, when subjected to force in the warp direction, the inner core 121 is stretched, and the spiral path of the outer winding layer 122 is stretched accordingly. Since cotton fibers do not have elasticity, the length is changed by stretching the spiral path, so that the cotton fibers will not break, and at the same time, it also has the function of extension.

[0036] like Figure 1 and Figure 2 The specific structure of weft yarn 2 is described above. Weft yarn 2 is a blended yarn that interweaves laterally between warp yarn 11 and warp yarn 12, which are arranged longitudinally. Specifically, when weft yarn 2 is made of blended yarn, it has a certain degree of elasticity. At the same time, the elasticity is not too great, which would cause the denim fabric to be too loose. Therefore, weft yarn 2 also provides a certain degree of support.

[0037] The blended yarn of weft 2 is a uniform mixture of cotton and spandex fibers. Specifically, the blending of cotton and spandex fibers is a mature technology in spinning. There are various processing methods for the uniformly mixed cotton and spandex fibers. The most common method is to uniformly mix pre-processed spandex short fibers with cotton fibers in a certain proportion during pre-spinning processes such as opening, carding, and drawing. There is also a technique in which spandex fiber slivers are combined with cotton fibers and twisted in subsequent processes to form the blended yarn material of weft 2.

[0038] Both meridian 11 and meridian 212 are dyed indigo.

[0039] The color of latitude line 2 is off-white.

[0040] It should be noted that the most commonly used denim fabric colors are indigo dyeing and off-white. Indigo dyeing and off-white are the two most classic and core color systems in the denim industry. It should also be noted that in addition to the two colors mentioned above, there are other different colors.

[0041] like Figure 3 As shown, the diameter of warp yarn 12 is larger than that of warp yarn 11. After weaving, warp yarn 12 is used to hide warp yarn 11. Specifically, after weaving, both warp yarn section 1 and weft yarn section 2 are in a relatively dense state, while warp yarn 11 is covered by the larger diameter warp yarn 12, making warp yarn 11 hidden within two adjacent sets of warp yarn 12. This hides warp yarn 11, protecting it from damage, and in terms of touch, the denim fabric has a similar feel to traditional denim fabric.

[0042] Working principle: such as Figure 1 As shown, warp yarn 1 and weft yarn 2 are woven together to form denim fabric. Warp yarn 1 is divided into elastic warp yarn 11 and warp yarn 2 12. Meanwhile, weft yarn 2 is a blended yarn of cotton fiber and spandex fiber, which also has a certain degree of elasticity. Therefore, the denim fabric after weaving has elasticity in both the warp and weft directions.

[0043] It should be noted that the elasticity of weft yarn 2, which is formed by the uniform blending of cotton and spandex fibers, has certain limitations. However, warp yarn 11 is elastic polyester, and warp yarn 22 is elastic core-spun yarn. When stretched in the extension direction of weft yarn 2, warp yarn 11 and warp yarn 22 will undergo a certain degree of deformation. The weft yarn 2, which was originally woven into a wavy shape, will extend as straight as possible, thereby indirectly increasing the elasticity of weft yarn 2 and maximizing elasticity in the weft yarn 2 direction to improve comfort.

[0044] Additionally, it's important to understand that warp yarn 12 is spirally wound around the inner core 121 as an outer wrapping layer 122. This gives warp yarn 12 a certain diameter. Therefore, when weaving with weft yarn 2, the weft yarn 2 interweaves through warp yarn 12, effectively partially covering it. This results in greater deformation of the weft yarn 2. When stretched in the direction of the weft yarn 2, it will recover its original shape, while warp yarn 12 undergoes significant deformation. Consequently, weft yarn 2 exhibits relatively strong elongation properties. Furthermore, the diameter of warp yarn 12 is larger than that of warp yarn 11. During weaving, warp yarn 11 is hidden inside the denim fabric, resulting in a more aesthetically pleasing appearance and reducing the likelihood of damage to warp yarn 11.

[0045] It is also important to know that when cotton fibers are stretched or stretched repeatedly over a long period of time, they compress the elastic fibers inside the fabric and tightly wrap and fix the cotton fibers. Even when the fabric is not worn, the elastic fibers are in a state of high tension, which makes the inner core 121 easily damaged, resulting in a decrease in elasticity. Even when the elasticity decreases, the warp yarns 11 elastic polyester provide support, so that the denim fabric still has a certain degree of elasticity even after long-term use, thus improving the quality of the denim fabric.

[0046] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] The above provides a detailed description of a multi-dimensional elastic denim fabric provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A multi-dimensional elastic all-around denim fabric, characterized in that, It includes interwoven warp and weft yarns, with the weft yarns being flexibly arranged. The warp yarns include: Meridian 1 has multiple sets, arranged longitudinally, and is flexible; Warp 2 also has multiple sets, which are longitudinally distributed at intervals with warp 1. Warp 2 is also elastic and is a core-spun yarn. The first warp is made of elastic polyester; The second warp includes an inner core and an outer winding layer. The inner core is made of spandex yarn, and the outer winding layer is made of cotton fiber. The outer winding layer is linear and spirally extends around the outside of the inner core. When the inner core is stretched, the spiral path of the outer winding layer on the inner core will be lengthened accordingly.

2. The multi-dimensional elastic all-around denim fabric according to claim 1, characterized in that, The weft yarn is a blended yarn, and it is interwoven horizontally between the warp yarns 1 and 2, which are set vertically.

3. The multi-dimensional elastic all-around denim fabric according to claim 2, characterized in that, The weft yarn is made of a uniform blend of cotton and spandex fibers.

4. The multi-dimensional elastic all-around denim fabric according to claim 1, characterized in that, Both warp one and warp two are dyed indigo.

5. The multi-dimensional elastic all-around denim fabric according to claim 1, characterized in that, The color of the latitude lines is off-white.

6. The multi-dimensional elastic all-around denim fabric according to claim 1, characterized in that, The diameter of warp two is larger than that of warp one, and after weaving, warp two is used to hide warp one.