Four-way stretch fabric and four-way stretch jeans garment

Abstract

The invention discloses a four-way stretch fabric and a four-way stretch jeans garment, and belongs to the field of textiles, the four-way stretch fabric comprises warp yarns and weft yarns which are interwoven, the warp yarns and the weft yarns do not contain spandex, the warp yarns and the weft yarns comprise micro-elastic single yarns, the micro-elastic single yarns have the elongation rate of 12%-60% and the elastic recovery rate of 70% or above according to ASTM D6720-07, and the micro-elastic single yarns have the elastic recovery rate of 70% or above according to ASTM D6720-07. The weft-wise elastic elongation of the four-way stretch fabric measured according to ASTM D3107 is 5%-32%. The spandex-free core-spun yarn does not contain spandex, has low certain elasticity, is good in recoverability, can effectively avoid the quality problem of spandex-containing core-spun yarn production, effectively reduces the process cost caused by using spandex, effectively reduces the quality problems of a fabric weaving link and a jeans wear washing link, and can greatly reduce the production cost.

Description

Technical Field

[0001] The invention relates to a four-way stretch fabric and a four-way stretch denim garment, belonging to the field of textiles. Background Art

[0002] Traditional denim is made from pure cotton yarn dyed with indigo as the warp and white cotton yarn as the weft. After the denim fabric is cut and sewn into garments, it undergoes a washing process, imparting the varied "distressed" look that has made it so popular.

[0003] The use of elastic yarn in the warp or weft direction of elastic denim fabric gives the fabric excellent stretch and recovery properties. When the wearer exercises, the fabric can partially stretch, making the wearer comfortable and free.

[0004] Currently, most stretch denim fabrics use core-spun yarns with a spandex core as the weft yarn, which is then woven with the warp yarns to impart excellent elasticity in the weft direction. However, after finishing, this fabric suffers from high shrinkage in the weft direction, which is difficult to control and stabilize, typically ranging from -13% to -20%. Existing technologies use double-spun elastic yarns. Using filaments such as T400 as the inner layer effectively limits yarn shrinkage, and combined with multiple pre-shrinking processes, this can stabilize shrinkage at around -8%. Others have employed low-shrinkage processes, including a process involving low-shrinkage treatment, dehydration, width opening, and drying, to control shrinkage to -3% to -5%. However, these processes are complex and require multiple steps, and each additional step increases the risk of fabric quality issues, significantly increasing production costs.

[0005] Finished denim clothing needs to go through a washing process (enzyme bleaching, chlorine bleaching, oxygen bleaching), which will damage the performance of spandex filaments. The clothing is prone to irreversible quality problems such as loss of elasticity and slippage, which seriously restricts the development of elastic denim fabrics.

[0006] Fabrics containing spandex have good elasticity, and the elastic elongation of the fabric can reach more than 35%. However, after long-term wear and stretching, the performance of spandex will be relatively weakened, which will reduce the elastic recovery performance of the fabric. Therefore, the quality problem of "bulging" is prone to occur after long-term wear.

[0007] Spandex core-spun yarn is too elastic. When used as warp yarn, controlling the warping tension during warping is difficult due to the yarn's elasticity. Too little tension causes the yarn to rebound and recoil, leading to tangles. Too much tension straightens the fibers in the yarn, causing the yarn to be stretched and thinned due to the constantly changing winding diameter. This can lead to uneven yarn evenness, seriously affecting the subsequent dyeing process, causing irreversible quality issues, and even potentially causing yarn breakage. Furthermore, warping speed for spandex core-spun yarn is 30% slower than for non-stretchy pure cotton yarn or non-stretchy blended yarn. If the spandex core-spun yarn breaks, the elastic yarns quickly recoil and become tangled, making it difficult for operators to handle and significantly reducing warping efficiency.

[0008] Since the yarn stretches differently due to different tensions during warping and winding, the fabric will shrink to varying degrees in the warp and weft directions after finishing. The fabric thus made will have blurred and unclear textures after being sandblasted or faded, and cannot meet the market's requirements for fabric appearance.

[0009] While spandex-containing elastic fabrics offer excellent stretch and recovery properties, providing excellent elasticity and comfort, they can also present the aforementioned issues during production and subsequent wear. The process for producing elastic core-spun yarn is also relatively complex. For example, during the spinning process, the wrapped monofilaments or double filaments can easily become exposed, resulting in a whitened surface on the woven fabric.

[0010] In recent years, people have been very fond of the "retro" and "heavyweight denim" styles of denim clothing. Although non-elastic fabrics can achieve this style effect, they cannot meet people's requirements for wearing comfort due to their lack of elasticity. Clothing made of elastic fabrics containing spandex, although having excellent wearing extensibility and comfort, is too elastic and difficult to create a stiff, rugged, and wear-resistant effect. "Retro" and "heavyweight denim" require a more stringent chemical environment when washed. Spandex fabrics and clothing thereof are more likely to have irreversible quality problems during the production process. Daily household washing also causes dimensional deformation problems due to unstable control of the shrinkage rate of spandex fabrics. Therefore, the market is in urgent need of a low-elastic fabric that does not contain spandex but can achieve a certain degree of stretching, with an elastic elongation below 32%, but good resilience. The existing technology requires such an improvement. Summary of the Invention

[0011] In order to overcome the deficiencies of the prior art, the present invention provides a four-way stretch fabric and a four-way stretch denim garment, which provide a certain degree of elasticity without spandex, thereby avoiding a series of problems caused by the use of spandex.

[0012] The technical solution adopted by the present invention to solve its technical problem is:

[0013] In the first aspect, the present application provides a four-way stretch fabric, comprising interwoven warp yarns and weft yarns, wherein the warp yarns and the weft yarns do not contain spandex, and the warp yarns and the weft yarns both comprise micro-elastic single yarns, wherein the elongation of the micro-elastic single yarns measured according to ASTM D6720-07 is 12% to 60%, and the elastic recovery rate is above 70%. The four-way stretch fabric has a weft elastic elongation of 5% to 32% measured according to ASTM D3107.

[0014] The four-way stretch fabric provided by the present application does not contain spandex and has a certain degree of ductility. The fabric is easy to have a distressed retro style effect after washing, and will not have the irreversible quality problems that occur in the production and use of spandex-containing fabrics.

[0015] Furthermore, the four-way stretch fabric has a weft elastic elongation of 10% to 30% as measured according to ASTM D3107.

[0016] This elastic range ensures the fabric has room to stretch during exercise, ensuring comfort, while also avoiding excessive elasticity that could prevent the fabric from maintaining its shape during daily wear, affecting the overall look of the garment. Within this elastic range, the fabric exhibits more stable and excellent elastic recovery. After repeated stretching, the fabric is able to better return to its original state, reducing deformation caused by elastic fatigue, extending the life of the garment, and maintaining its aesthetic appearance.

[0017] Furthermore, the four-way stretch fabric has a weft elastic elongation of 15% to 27% as measured according to ASTM D3107.

[0018] Furthermore, the slightly elastic single yarn comprises polyester, nylon, or a combination thereof, with a denier of 15D to 500D; or the slightly elastic single yarn is a first single yarn spun from inelastic fibers twisted to at least partially form a spiral crimp, with a yarn count of 10S to 100S. Polyester includes PTT fiber, PBT fiber, T400 yarn, DTY yarn, and the like.

[0019] Furthermore, at least one of the warp yarn and the weft yarn is a strand, and the strand includes at least one of the slightly elastic single yarn.

[0020] The strands enhance the overall structural stability of the yarn, which makes the yarn have a higher breaking strength and reduces the probability of yarn breakage. Especially during the weaving process, it can better withstand various tensile forces, reduce the occurrence of yarn breakage, and improve weaving efficiency.

[0021] Furthermore, at least one of the warp yarn and the weft yarn is a spirally wound covered yarn, and the spirally wound covered yarn includes a core wire and a covering wire spirally wound on the surface of the core wire, and at least one of the core wire and the covering wire is the micro-elastic single yarn.

[0022] When the core yarn is a slightly elastic single yarn, the covering yarn can protect and constrain it, making the slightly elastic single yarn more stable while providing elasticity and preventing it from overstretching or shrinking. When the covering yarn is a slightly elastic single yarn, it can form an elastic layer on the yarn surface, directly contacting the outside world, and taking the lead in providing elastic cushioning when the fabric is stretched. The spirally wound structure gives the yarn greater stability. During the production process, whether it is warping, weaving, or finishing, it can better resist external forces and reduce damage to the yarn structure. For example, during warping, compared with spandex core-spun yarn, this spirally wound covering yarn can better control tension and reduce yarn quality problems caused by tension problems.

[0023] Furthermore, the weft yarns are not perpendicular to the warp yarns.

[0024] Furthermore, the mass of the slightly elastic single yarn accounts for 30% to 100% of the mass of the four-way stretch fabric.

[0025] Furthermore, the warp yarn includes a first warp yarn and a second warp yarn, the four-way stretch fabric is a double warp structure, the first warp yarn and the weft yarn are interwoven into an upper layer, the second warp yarn and the weft yarn are interwoven into a lower layer, the second warp yarn contains the micro-elastic single yarn, and the breaking elongation of the first warp yarn is less than that of the second warp yarn.

[0026] When worn, the lower layer better accommodates body movements, providing the necessary space for stretching and reducing compression. The first warp yarn, with its lower elongation at break, acts as a restraint on the upper layer, ensuring both comfort and maintaining the garment's overall shape, preventing deformation from excessive stretching. During stretching, the slightly elastic single yarns in the lower layer deform significantly first, while the upper layer deforms relatively less. During recovery, the various layers work together to help the fabric quickly and accurately return to its original state.

[0027] Furthermore, the second warp yarn is a ply yarn formed by the first single yarn.

[0028] This enhances the elasticity and structural stability of the underlying layer. The ply structure itself improves the yarn's breaking strength, while the first single yarn, a component of the ply, is twisted from inelastic fibers to at least partially form a spiral crimp, imparting unique elasticity to the ply. In the fabric's lower layer, the second warp yarns of this ply structure are better able to withstand tensile forces, providing more reliable elastic support during exercise while reducing the risk of yarn breakage that could compromise the fabric's elasticity and overall quality. This structure optimizes the synergy between the second warp yarns and the first warp and weft yarns of the upper layer. During fabric stretch and recovery, the second warp yarns of the lower ply structure more effectively cooperate with the first warp yarns of the upper layer, achieving more reliable elastic control and recovery. For example, during stretch, the elastic elongation of the lower ply yarns is better constrained by the first warp yarns of the upper layer, resulting in more uniform and controllable stretch deformation across the fabric. During recovery, the interaction between the layers helps the fabric return to its original shape more quickly, enhancing its overall performance.

[0029] In a second aspect, the present application provides a four-way stretch denim garment comprising the four-way stretch fabric as described in the first aspect.

[0030] The beneficial effects of the present invention are: the present invention does not contain spandex but has a relatively low certain elasticity and good recovery performance, can effectively avoid the quality problems caused by the production of spandex core-spun yarn, effectively reduce the process costs caused by the use of spandex, and at the same time effectively reduce the quality problems in the fabric weaving link and the denim clothing washing link, which can greatly reduce the production cost.

[0031] Other features and advantages of the present application will be described in the following description, and in part will become apparent from the description, or understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures particularly pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of a four-way stretch fabric provided in an embodiment of the present application.

[0033] Reference numerals: 1, warp yarn; 2, weft yarn. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be understood that, under the premise of no conflict, any and all embodiments of the present invention can be combined with the technical features in any other embodiment or multiple other embodiments to obtain additional embodiments. The present invention includes such combinations to obtain additional embodiments.

[0036] Unless otherwise specified, all technical and scientific terms used herein have the standard meanings in the art to which the claimed subject matter belongs. If there are multiple definitions for a term, the definition herein shall prevail.

[0037] When warping spandex core-spun yarn, if the set process parameters remain unchanged, the tension of the yarn will change as the diameter of the wound warp beam increases. When the yarn is dyed in the subsequent process, the different tensions will lead to inconsistent tension levels of the yarn, resulting in color differences during dyeing.

[0038] Although elastic fabrics containing spandex have high elastic elongation and good stretch recovery properties, they have a large shrinkage rate and are difficult to control and stabilize. The post-finishing process is complex and costly. Moreover, with more steps, new quality problems such as color flakes, twisting, and oil stains may easily appear during processing. In the event of quality problems such as slippage and loss of elasticity, the fabric cannot be remedied and can only be discarded, which seriously affects the time it takes for the product to be put on the market and causes huge economic losses.

[0039] An embodiment of the present application provides a four-way stretch fabric, including interwoven warp yarns and weft yarns, wherein neither the warp yarns nor the weft yarns contain spandex, and both the warp yarns and the weft yarns include slightly elastic single yarns. The elongation of the slightly elastic single yarns measured according to ASTM D6720-07 is 12% to 60%, and the elastic recovery rate is above 70%. The four-way stretch fabric has a weft elastic elongation of 5% to 32% measured according to ASTM D3107.

[0040] This fabric has a slightly elastic effect without containing spandex, and does not require heat setting during finishing. Heat setting is a traditional method of treating elastic fabrics through a setting machine to stabilize the dimensions of the elastic fabric. For example, the heat setting temperature of fabrics containing spandex (Lycra) is about 170°C. The fabric studied in the present invention does not contain spandex and can effectively ensure the dimensional stability of the fabric even without heat setting. It can also effectively avoid the irreversible quality problems that spandex-containing elastic fabrics are prone to during weaving, clothing production, daily wear, and daily washing.

[0041] The slightly stretch single yarn is, for example, polyester, nylon or a combination thereof, and has a denier of 15D to 500D.

[0042] Alternatively, the slightly elastic single yarn is a first single yarn spun from inelastic fibers twisted to at least partially form spiral curls, and the yarn count is 10S to 100S.

[0043] The inelastic fibers are short fibers with a fiber length of 15 mm to 85 mm. Short fibers are known in the art, such as cotton, wool, flax, hemp, silk, modal, viscose, tencel, cupro and the like.

[0044] The DTY, T400, or inelastic fiber used has an elongation at break of 5% to 70%, resulting in a four-way stretch fabric with a weft-direction elastic elongation of less than 30%, as measured according to ASTM D3107. In contrast, conventional elastic fibers, such as spandex or polyurethane urea-based fibers, have an elongation at break exceeding 200%, typically ranging from 200% to 600%.

[0045] Compared with core-spun yarns containing elastic fibers (such as spandex) of the same count, the warp and weft yarns of the present invention have higher breaking strength, which is beneficial to reducing the probability of yarn breakage, and the structure of the yarn makes the joint part hidden, thereby improving the quality of the yarn and its production efficiency.

[0046] Twisting to at least partially form a spiral curl refers to the process where a single yarn, after being twisted continuously in a single direction, loses its original length upon further twisting, and bends and curls, subsequently forming a partial spiral. In this state, the yarn exhibits a certain degree of elasticity, meaning that when stretched, the bends and curls are straightened, but when the tension is released, the bends and curls are reformed.

[0047] Generally, the warp and weft yarns of denim fabrics are vertically overlapped. In the preferred embodiment of the present application, Figure 1 As shown, the warp yarn 1 and weft yarn 2 are not perpendicular, or weft yarn 2 forms a certain angle with the width direction. This can produce a unique elastic deformation mode, increasing the overall elasticity and flexibility of the fabric, making the fabric better able to adapt to different external forces in all directions and providing more comprehensive stretch space.

[0048] When micro-elastic single yarn is used directly as warp yarn, the warping rate will be increased by about 30% compared with using spandex core-spun yarn as warp yarn, and the number of yarn breaks per 10,000 meters will be reduced by 15% to 20%.

[0049] When micro-stretch yarn is used as the primary single yarn, the dyeing process requires 10% to 20% more dye than for standard yarn due to the tight inter-fiber bonding. The tightly inter-fiber bond of the yarn reduces surface hairiness, resulting in higher yarn strength. This allows for a reduction in sizing, reducing the amount of sizing by 2% to 4%. Despite this reduction in sizing, the yarn maintains high strength and low hairiness, effectively reducing friction between the yarn and the healds and reeding area during weaving, reducing breakage and significantly improving weaving efficiency.

[0050] The embodiments of the present application can effectively avoid the problem of elastic yarn exposure caused by stretching, friction, etc. during the weaving process of traditional spandex core-spun yarn, avoid quality problems such as "dead folds" and serious elasticity loss caused by the presence of high-elasticity stretch yarns during the finishing process, and avoid the "elasticity slippage and loss" problems that are prone to occur in the washing process after the garment is manufactured, and will not cause the appearance of the garment to fluctuate or distort due to long-term wearing.

[0051] In some embodiments, the weft yarn includes the first single yarn, and the warp yarn includes a low-elastic yarn without spandex such as DTY yarn or T400 yarn, or the warp yarn includes the first single yarn.

[0052] In a preferred embodiment, the warp yarns include first and second warp yarns, and the four-way stretch fabric has a double warp weave. The first warp yarns are interwoven with the weft yarns to form the upper layer, and the second warp yarns are interwoven with the weft yarns to form the lower layer. The first warp yarns have a lower elongation at break than the second warp yarns. The first warp yarns are yarns made from staple fibers. The second warp yarns are also yarns made from staple fibers and contain first single yarns. The yarns exhibit a microbend or micro-spiral effect, thereby providing less elasticity when stretched. The weft yarns are also yarns made from staple fibers and contain first single yarns. The yarns exhibit a microbend or micro-spiral effect. The second warp yarns and weft yarns are interwoven to form the lower layer of the fabric. When the fabric is stretched, the lower layer experiences a smaller elongation in the warp and weft directions, effectively reducing pressure on the human body. The first warp yarns and weft yarns are interwoven to form the upper layer of the fabric. The stretching effect of the upper layer after stretching is less than that of the lower layer of the fabric after stretching, and the upper layer restricts the stretching of the lower layer. During wearing, it can adapt to the stress and stretching in certain positions. For example, the lower layer close to the skin can stretch better. At the same time, the restraining effect of the upper layer can effectively reduce the squeezing of the lower layer of the fabric on the skin during stretching.

[0053] Based on this fabric structure design, the fabric has a certain amount of spatial expansion when stretched, achieving a plastic effect while also being comfortable to wear. While traditional elastic fabrics have excellent elasticity, they cannot return to their original shape after prolonged wear and stretching, resulting in irreversible ripples or bumps that seriously affect the aesthetics of the garment. The fabric of the present invention effectively avoids this problem and, while maintaining its shape, requires less fabric for cutting. Clothes will not become wrinkled after daily washing due to high shrinkage, making them ideal for ironing-free garments.

[0054] Example 1

[0055] Both the warp and weft yarns are processed from staple fibers. The warp is 12S pure cotton yarn with a twist coefficient of 4.6, twisted to form a partial spiral crimp; the weft is 12S pure cotton yarn with a twist coefficient of 4.2, twisted to form a partial spiral crimp. The fabric has a three-over-one-under twill weave. After conventional finishing, the fabric has a warp elastic elongation of 20.6% (measured according to ASTM D3107, the same below) and a weft elastic elongation of 15.4%. The weft shrinkage is -3.2%, and the weft growth rate is 1.2%.

[0056] Example 2

[0057] The warp yarn is made from staple fibers. It is 12S pure cotton yarn with a twist coefficient of 4.6, twisted to form a partial spiral crimp. The weft yarn is 300D T400 yarn. The fabric has a three-up, one-down twill structure. After conventional finishing, the fabric has an elastic elongation of 20.1% in the warp direction and 26.3% in the weft direction. The fabric has a weft shrinkage of -2.4% and a weft growth rate of 1%.

[0058] Example 3

[0059] The first warp yarn is 10S pure cotton yarn. The second warp yarn is 32S yarn processed from cotton fiber with a twist coefficient of 4.5, twisted to form a localized spiral crimp. The weft yarn is 16S yarn processed from cotton fiber with a twist coefficient of 4.8, twisted to form a localized spiral crimp. The first warp and weft yarns are interwoven in a three-up, one-down twill, while the second warp and weft yarns are interwoven in a plain weave. After conventional finishing, the fabric has a warp elastic elongation of 12.6% and a weft elastic elongation of 14.2%. The weft shrinkage of the fabric is -6.5%, and the weft growth rate is 3.2%.

[0060] Example 4

[0061] The first warp yarn is 8S pure cotton yarn, while the second weft yarn is 32S yarn made from cotton fiber with a twist coefficient of 4.6, twisted to form a localized spiral crimp. The weft yarn is 12S yarn made from a cotton and viscose blend with a twist coefficient of 5.0, twisted to form a localized spiral crimp. The first warp and weft yarns are interwoven in a three-over-one-under twill, while the second warp and weft yarns are interwoven in a one-over-three-under twill. After conventional finishing, the fabric has a warp elastic elongation of 13.2% and a weft elastic elongation of 16.3%. The weft shrinkage is -7%, and the weft growth rate is 4%.

[0062] Example 5

[0063] The first warp yarn is 12S pure cotton yarn, and the second weft yarn is made by plying two 60S yarns processed from cotton fiber with a twist coefficient of 4.8, twisted to form a partial spiral crimp. The weft yarn is made by plying two 32S yarns processed from cotton fiber with a twist coefficient of 5.0, twisted to form a partial spiral crimp. The first warp yarn and the weft yarn are interwoven in a three-up, one-down twill, and the second warp yarn and the weft yarn are interwoven in a one-up, one-down twill. After conventional finishing, the fabric has a warp elastic elongation of 15.3% and a weft elastic elongation of 16.9%. The fabric has a weft shrinkage of -6.2% and a weft growth rate of 3.1%.

[0064] The fabric of the present invention has a certain elastic effect in both the warp and weft directions, and the warp and weft directions of the fabric do not contain elastic filaments such as spandex, so that the fabric has excellent recovery performance and low growth rate, which can effectively maintain the stability of clothing, and greatly reduces damage and performance loss of the fabric due to stretching, such as lack of recovery, waviness, and bulging.

[0065] Throughout this specification, references to terms such as "one embodiment," "certain embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses 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 any one or more embodiments or examples.

[0066] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A four-way stretch fabric comprising interwoven warp yarns and weft yarns, characterized in that: The warp yarn and the weft yarn do not contain spandex, and the warp yarn and the weft yarn both include slightly elastic single yarn. The elongation of the slightly elastic single yarn measured according to ASTM D6720-07 is 12% to 60%, and the elastic recovery rate is above 70%. The four-way stretch fabric has a weft elastic elongation of 5% to 32% measured according to ASTM D3107.

2. The four-way stretch fabric according to claim 1, characterized in that: The weft elastic elongation measured according to ASTM D3107 is 15% to 27%.

3. The four-way stretch fabric according to claim 1, characterized in that: The slightly elastic single yarn comprises polyester, nylon or a combination thereof, with a denier of 15D to 500D; or, the slightly elastic single yarn is a first single yarn spun from inelastic fiber twisted to at least partially form a spiral curl, with a yarn count of 10S to 100S.

4. The four-way stretch fabric according to claim 1, characterized in that: At least one of the warp yarn and the weft yarn is a strand, and the strand includes at least one slightly elastic single yarn.

5. The four-way stretch fabric according to claim 1, characterized in that: At least one of the warp yarn and the weft yarn is a spirally wound covered yarn, and the spirally wound covered yarn includes a core wire and a covering wire spirally wound on the surface of the core wire. At least one of the core wire and the covering wire is the slightly elastic single yarn.

6. The four-way stretch fabric according to claim 1, characterized in that: The weft yarns are not perpendicular to the warp yarns.

7. The four-way stretch fabric according to claim 1, characterized in that: The mass of the slightly elastic single yarn accounts for 30% to 100% of the mass of the four-way stretch fabric.

8. The four-way stretch fabric according to claim 1, characterized in that: The warp yarn includes a first warp yarn and a second warp yarn, the four-way stretch fabric is a double warp structure, the first warp yarn and the weft yarn are interwoven into an upper layer, the second warp yarn and the weft yarn are interwoven into a lower layer, the second warp yarn contains the slightly elastic single yarn, and the breaking elongation of the first warp yarn is less than that of the second warp yarn.

9. The four-way stretch fabric according to claim 8, characterized in that: The second warp yarn is a ply yarn including the first single yarn.

10. A four-way stretch denim garment, characterized in that: The invention comprises the four-way stretch fabric according to any one of claims 1 to 9.

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