Cool anti-wrinkle jean fabric and clothes

Abstract

The utility model relates to a cool crease-resistant jean fabric and clothes. The cool anti-wrinkle jean fabric comprises warp yarns and weft yarns which are interwoven with each other, the warp yarns are elastic core-spun yarns, and the elastic core-spun yarns comprise yarn cores and outer wrapping layers wrapping the outer surfaces of the yarn cores; the yarn core is bio-based sorona fiber filaments, and the outer covering layer comprises blended yarns formed by blending at least one of cotton fibers, Saileer fibers and viscose fibers with bio-based sorona fibers; the weft yarns are blended yarns formed by blending nylon fibers containing jade and bio-based sorona fibers; the floating length of the yarn of the cool anti-wrinkle jean fabric is 4-8 weave points, and in each weave cycle, each warp yarn and each weft yarn are interwoven for 1-2 times. By controlling the number of interweaving times of the yarn floating lines and the warp yarns and the weft yarns, the weave structure of the jean fabric is relatively loose, the movement space among the yarns is large, the yarns are easy to move under external force, the stress concentration is reduced, and the wrinkle resistance of the yarns is improved; therefore, the wrinkle resistance of the fabric is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of textile, in particular to a cool-sensation and wrinkle-resistant denim fabric and clothing. Background Art

[0002] As the mainstream of fashion, denim fabrics have always been favored by consumers. Traditional denim fabrics are woven from pure cotton yarns. However, in spring and summer, lightweight pure cotton fabrics are prone to wrinkles after being pressed and folded, and are not easy to be smoothed out. Content of the Utility Model

[0003] Based on this, it is necessary to provide a cool-sensation and wrinkle-resistant denim fabric and clothing.

[0004] In the first aspect of this application, a cool-sensation and wrinkle-resistant denim fabric is provided, which includes warp yarns and weft yarns that are intertwined with each other; the warp yarns are elastic core-spun yarns, and the elastic core-spun yarns include a yarn core and an outer layer wrapped around the outer surface of the yarn core; the yarn core is a bio-based sorona fiber filament, and the outer layer includes a blended yarn formed by blending at least one of cotton fiber, sailyer fiber and viscose fiber with bio-based sorona fiber; the weft yarn is a blended yarn formed by blending nylon fiber containing jade with bio-based sorona fiber; the float length of the yarns of the cool-sensation and wrinkle-resistant denim fabric is 4 to 8 tissue points, and the number of times each warp yarn and the weft yarn are intertwined with each other in each tissue cycle is 1 to 2 times.

[0005] In the above-mentioned denim fabric, the warp yarns of the denim fabric adopt elastic core-spun yarns. The elastic core-spun yarns use bio-based sorona fiber filaments as the yarns, and a blended yarn formed by blending at least one of cotton fiber, sailyer fiber and viscose fiber with bio-based sorona fiber as the outer layer. The weft yarn is a blended yarn formed by blending nylon fiber containing jade with bio-based sorona fiber. The bio-based sorona fiber has a natural 3D crimp structure, which can endow the fabric with a soft hand feeling, comfortable stretching and good elastic recovery. For the elastic core-spun yarn with the above structure, bio-based sorona fibers with good elasticity are arranged in both the core yarn and the outer layer. This double-elastic structure ensures that the yarn can quickly return to its original state after being stretched, thereby improving the elastic recovery of the denim fabric and further enhancing the wrinkle resistance of the denim fabric. Nylon fiber has good toughness and can quickly return to the shape of the raw material after being bent. Jade has good thermal conductivity and can conduct heat when contacting the skin, thus having a cool sensation. The weft yarn adopts a blended yarn of nylon fiber containing jade and bio-based sorona fiber, which can cooperate with the warp yarns to further improve the wrinkle resistance of the denim fabric and also endow the fabric with good cool-sensation characteristics.

[0006] Further, in the structural organization design of the denim fabric, the floating length of the yarn is controlled to be 4 to 8 tissue points, and the number of interweaving times of each warp and weft yarn in each tissue cycle is 1 to 2 times. In this way, through the control of the floating length of the yarn in the fabric, the organizational structure of the denim fabric is relatively loose, there is a large margin for movement between the yarns, the yarns are easy to move during the process of the fabric being subjected to external forces, stress concentration is reduced, thereby improving the wrinkle resistance of the yarns, and further improving the wrinkle resistance of the denim fabric. At the same time, the fabric also has a certain strength.

[0007] In some embodiments, the fineness of the bio-based sorona fiber filament in the elastic core-spun yarn is 70D to 200D.

[0008] In some embodiments, the proportion of the bio-based sorona fiber in the outer layer of the elastic core-spun yarn is 20% to 60%.

[0009] In some embodiments, the quantity ratio of the bio-based sorona fiber to the jade-containing nylon fiber in the weft yarn is (1 to 2.5):1.

[0010] In some embodiments, the yarn count of the warp yarn is 10S to 20S; and / or, the yarn count of the weft yarn is 16S to 40S.

[0011] In some embodiments, the twist of the warp yarn is 40 twists / 10 cm to 100 twists / 10 cm; and / or, the twist of the weft yarn is 50 twists / 10 cm to 120 twists / 10 cm.

[0012] In some embodiments, the loom density of the warp yarn is 45 threads / inch to 90 threads / inch; and / or, the loom density of the weft yarn is 35 threads / inch to 90 threads / inch.

[0013] In some embodiments, the structure of the denim fabric adopts a twill weave.

[0014] In some embodiments, the repeat of the structural organization of the denim fabric is 1 to 3.

[0015] In the second aspect of the present application, a piece of clothing is provided, and the clothing includes the above-mentioned denim fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained according to the disclosed drawings without creative efforts.

[0017] Figure 1 It is the structural organization diagram of the denim fabric in an embodiment of the present application.

[0018] Figure 2 It is the structural organization diagram of the denim fabric in another embodiment of the present application.

[0019] Figure 3 It is the structural organization diagram of the denim fabric in Comparative Example 1 of the present application.

[0020] Description of the reference numerals:

[0021] 10, warp; 20: weft. Specific embodiments

[0022] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below, and preferred embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. It should be understood that the purpose of providing these embodiments is to make the understanding of the disclosure content of the present utility model more thorough and comprehensive.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0025] Refer to Figure 1 , in an embodiment of the present application, a cool-sensation and wrinkle-resistant denim fabric is provided, which includes an interwoven warp 10 and weft 20; the warp 10 is an elastic core-spun yarn, and the elastic core-spun yarn includes a yarn core and an outer layer wrapped around the outer surface of the yarn core; the yarn core is a biobased sorona fiber filament, and the outer layer includes a blended yarn formed by blending at least one of cotton fiber, sialer fiber and viscose fiber with biobased sorona fiber; the weft 20 is a blended yarn formed by blending nylon fiber containing jade with biobased sorona fiber.

[0026] The float length of the yarn of the cool-sensation and wrinkle-resistant denim fabric is 4 to 8 tissue points, and the number of interweaving times of each warp yarn 10 and weft yarn 20 in each weave cycle is 1 to 2 times. Specifically, in the specific example as shown in Figure 1 , the float length of the yarn of the cool-sensation and wrinkle-resistant denim fabric is 4 tissue points, and the number of interweaving times of each warp yarn 10 and weft yarn 20 in each weave cycle is 2 times.

[0027] For further reference, see Figure 2 , which is basically the same as the structure shown in Figure 1 , the main difference being that the float length number of the yarn of the cool-sensation and wrinkle-resistant denim fabric is different. Specifically, in the specific example as shown in Figure 2 , the float length of the yarn of the cool-sensation and wrinkle-resistant denim fabric is 8 tissue points, and the number of interweaving times of each warp yarn 10 and weft yarn 20 in each weave cycle is 1 time.

[0028] The bio-based sorona fiber is made of two main raw materials, 1,3-propanediol (PDO) and PTA (or DMT), and among them, 1,3-propanediol (PDO) is obtained by the method of fermenting corn sugar.

[0029] A tissue point refers to the intersection of warp yarn and weft yarn in a fabric.

[0030] In the structural organization design of the above-mentioned denim fabric, the float length of the yarn is controlled to be 4 to 8 tissue points, and the number of interweaving times of each warp yarn 10 and weft yarn 20 in each weave cycle is 1 to 2 times; through the control of the float length of the yarn in the fabric, the fabric structure is made relatively loose, and there is a large margin for movement between the yarns. When the fabric is subjected to external force, the yarns are easy to move, reducing stress concentration, thereby improving the wrinkle resistance of the yarns, and further improving the wrinkle resistance of the denim fabric, and at the same time endowing the fabric with a certain strength.

[0031] Furthermore, the warp yarn 10 of the denim fabric is made of elastic core-spun yarn. The elastic core-spun yarn uses bio-based sorona fiber filament as the core yarn, and a blended yarn formed by blending at least one of cotton fiber, sialer fiber and viscose fiber with bio-based sorona fiber as the outer layer. The weft yarn 20 is a blended yarn formed by blending nylon fiber containing jade with bio-based sorona fiber. The bio-based sorona fiber has a natural 3D crimp structure, which can endow the fabric with a soft hand feeling, comfortable stretch and good elastic recovery. For the elastic core-spun yarn with the above structure, bio-based sorona fiber is provided in both the core yarn and the outer layer. This double elastic structure ensures that the yarn can quickly return to its original state after being stretched, thereby improving the elastic recovery of the denim fabric and further enhancing the wrinkle resistance of the denim fabric. Nylon fiber has good toughness and can quickly return to the shape of the raw material after being bent. Jade has good heat conductivity and can conduct heat when in contact with the skin, thus having a cool feeling. The weft yarn 20 made of a blended yarn of nylon fiber containing jade and bio-based sorona fiber can cooperate with the warp yarn to further improve the wrinkle resistance of the denim fabric and also endow the fabric with good cool feeling characteristics.

[0032] In some embodiments, the outer layer of the elastic core-spun yarn is a blended yarn formed by blending at least one of cotton fiber, sialer fiber and viscose fiber with bio-based sorona fiber.

[0033] In some embodiments, the nylon fiber containing jade is the commercially available cool feeling nylon fiber; more preferably, it can be Qingdao Bunte Ice Cool Jade Fiber.

[0034] In some embodiments, the fineness of the bio-based sorona fiber filament in the elastic core-spun yarn is 70D to 200D. As an example, the fineness of the bio-based sorona fiber filament in the elastic core-spun yarn can be 70D, 80D, 90D, 100D, 110D, 120D, 130D, 140D, 150D, 160D, 170D, 180D, 190D or 200D. Furthermore, the fineness of the bio-based sorona fiber filament in the elastic core-spun yarn can be a range value formed by any two of the above point values as the end values.

[0035] In some embodiments, the proportion of the bio-based sorona fiber in the outer layer of the elastic core-spun yarn is 20% to 60%. As an example, the proportion of the bio-based sorona fiber in the outer layer of the elastic core-spun yarn can be 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55% or 60%. Furthermore, the proportion of the bio-based sorona fiber in the outer layer of the elastic core-spun yarn can be a range value formed by any of the above point values as the end values.

[0036] In some embodiments, the quantity ratio of the jade-containing nylon fibers to the bio-based sorona fibers in the weft yarn 20 is (1 to 2.5):1. As an example, the quantity ratio of the jade-containing nylon fibers to the bio-based sorona fibers in the weft yarn 20 can be 1:1, 1.2:1, 1.4:1, 1.5:1, 1.6:1, 1.8:1, 2.0:1, 2.2:1, 2.4:1 or 2.5:1. Further, the quantity ratio of the jade-containing nylon fibers to the bio-based sorona fibers in the weft yarn 20 can be any other ratio within the above range.

[0037] In some embodiments, the yarn count of the warp yarn 10 is 10S to 20S. As an example, the yarn count of the warp yarn 10 can be 10S, 11S, 12S, 13S, 14S, 15S, 16S, 17S, 18S, 19S or 20S. Further, the yarn count of the warp yarn 10 can be a range value formed by any two of the above point values as the end values.

[0038] In some embodiments, the yarn count of the weft yarn is 16S to 40S. As an example, the yarn count of the weft yarn can be 16S, 18S, 20S, 22S, 24S, 25S, 26S, 28S, 30S, 32S, 34S, 35S, 36S, 38S or 40S. Further, the yarn count of the weft yarn can be a range value formed by any two of the above point values as the end values.

[0039] In some embodiments, the twist of the warp yarn 10 is 40 twists / 10 cm to 100 twists / 10 cm. As an example, the yarn twist of the warp yarn can be 40 twists / 10 cm, 45 twists / 10 cm, 50 twists / 10 cm, 55 twists / 10 cm, 60 twists / 10 cm, 62 twists / 10 cm, 65 twists / 10 cm, 68 twists / 10 cm, 70 twists / 10 cm, 72 twists / 10 cm, 75 twists / 10 cm, 78 twists / 10 cm, 80 twists / 10 cm, 85 twists / 10 cm, 88 twists / 10 cm, 90 twists / 10 cm, 95 twists / 10 cm or 100 twists / 10 cm. Further, the yarn twist of the warp yarn 10 can be a range value formed by any two of the above point values as the end values.

[0040] In some embodiments, the twist of the weft yarn 20 is 50 turns / 10 cm to 120 turns / 10 cm. As an example, the yarn twist of the weft yarn 20 can be 50 turns / 10 cm, 52 turns / 10 cm, 55 turns / 10 cm, 58 turns / 10 cm, 60 turns / 10 cm, 62 turns / 10 cm, 65 turns / 10 cm, 68 turns / 10 cm, 70 turns / 10 cm, 75 turns / 10 cm, 78 turns / 10 cm, 80 turns / 10 cm, 85 turns / 10 cm, 90 turns / 10 cm, 95 turns / 10 cm, 100 turns / 10 cm, 105 turns / 10 cm, 110 turns / 10 cm, 115 turns / 10 cm, or 120 turns / 10 cm. Further, the yarn twist of the weft yarn 20 can be a range value formed by any two of the above point values as the end values.

[0041] In some embodiments, the loom density of the warp yarn 10 is 45 ends / inch to 90 ends / inch. As an example, the loom density of the warp yarn 10 can be 45 ends / inch, 48 ends / inch, 50 ends / inch, 52 ends / inch, 55 ends / inch, 58 ends / inch, 60 ends / inch, 62 ends / inch, 65 ends / inch, 68 ends / inch, 70 ends / inch, 75 ends / inch, 80 ends / inch, or 90 ends / inch. Further, the loom density of the warp yarn 10 can be a range value formed by any two of the above point values as the end values.

[0042] In some embodiments, the loom density of the weft yarn 20 is 35 ends / inch to 90 ends / inch. As an example, the loom density of the weft yarn 20 can be 35 ends / inch, 40 ends / inch, 45 ends / inch, 48 ends / inch, 50 ends / inch, 52 ends / inch, 55 ends / inch, 58 ends / inch, 60 ends / inch, 62 ends / inch, 65 ends / inch, 68 ends / inch, 70 ends / inch, 75 ends / inch, 80 ends / inch, or 90 ends / inch. Further, the loom density of the weft yarn 20 can be a range value formed by any two of the above point values as the end values.

[0043] In some embodiments, the structure of the denim fabric adopts a twill weave.

[0044] In some embodiments, the float of the structure of the denim fabric is 1 to 3.

[0045] In one embodiment of the present application, a piece of clothing is provided, and the clothing includes the above-mentioned cool-sensation anti-wrinkle denim fabric.

[0046] In some embodiments, the above-mentioned clothing includes, but is not limited to, tops, pants, skirts, hats, and scarves.

[0047] In order to make the purpose, technical solutions and advantages of the present utility model more concise and clear, the present utility model is described by the following specific embodiments, but the present utility model is by no means limited to these embodiments. The embodiments described below are only the preferred embodiments of the present utility model and can be used to describe the present utility model, and should not be construed as a limitation on the scope of the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model should be included within the protection scope of the present utility model.

[0048] To better illustrate the present utility model, the content of the present utility model will be further described below in conjunction with embodiments. The following are specific embodiments.

[0049] Embodiment 1

[0050] Refer to Figure 1 , in this embodiment, a cool-sensation and wrinkle-resistant denim fabric is prepared, and the specific preparation method is as follows:

[0051] (1) The warp yarn 10 uses an elastic core-spun yarn, the elastic core is sorona fiber filament, the specification of the used bio-based sorona fiber is 150D / 72F, the outer layer is a blended yarn formed by blending sorona staple fiber and cotton fiber, the quantity ratio of sorona staple fiber to cotton fiber is 30 / 70, the yarn twist of the warp yarn 10 is 78 turns / 10 cm, and the yarn count of the warp yarn 10 is 14S. Piece dyeing is carried out on the warp yarn 10, and indigo dye is used for dyeing.

[0052] (2) The weft yarn 20 is blended with bio-based sorona staple fiber and ice-sensation nylon staple fiber (Qingdao Bond Cool Jade Fiber), and the quantity ratio of bio-based sorona staple fiber to ice-sensation nylon staple fiber is 60 / 40. The twist of the weft yarn 20 is 66 turns / 10 cm, and the yarn count of the weft yarn 20 is 14S.

[0053] (3) The denim fabric organizational structure is designed as twill weave, the warp and weft float lengths are 4 tissue points, the number of interweaving times of each warp and weft yarn in each tissue cycle is 2 times, the warp float is 3, and the loom density of the warp and weft yarns is 70×50.

[0054] (4) Weaving is carried out according to the organizational structure designed in (3), and the weaving process mainly includes: spinning, winding, warping, sizing, drawing-in, weaving, and post-finishing. The post-finishing includes: singeing, desizing, skewing, and shrink-proofing.

[0055] Embodiment 2

[0056] Refer to Figure 2 , in this embodiment, a cool-sensation and wrinkle-resistant denim fabric is prepared, and the specific preparation method is as follows:

[0057] (1) The warp yarn 10 is made of elastic core-spun yarn. The elastic core is sorona fiber filament. The specification of the bio-based sorona fiber used is 150D / 72F. The outer layer is a blended yarn formed by blending sorona staple fiber and viscose fiber. The ratio of sorona staple fiber to viscose fiber is 40 / 60. The yarn twist of the warp yarn 10 is 78 turns / 10 cm, and the yarn count of the warp yarn 10 is 14S. Piece dyeing is carried out on the warp yarn 10, and indigo dye is used for dyeing.

[0058] (2) The weft yarn 20 is made by blending bio-based sorona staple fiber and ice-sensing nylon staple fiber (Qingdao Bunte Ice Cool Jade Fiber). The ratio of bio-based sorona staple fiber to ice-sensing nylon staple fiber is 60 / 40. The twist of the weft yarn 20 is 66 turns / 10 cm, and the yarn count of the weft yarn 20 is 14S.

[0059] (3) The woven structure of the denim fabric is designed as twill weave. The warp and weft floats are 8 tissue points. In each tissue cycle, each warp and weft yarn interlaces once. The warp float is 3. The loom-state density of the warp and weft yarns is 70×50.

[0060] (5) The weaving process mainly includes: spinning, winding, warping, sizing, drawing-in, weaving, and after-finishing. The after-finishing includes: singeing, desizing, skewing, and shrink-proofing.

[0061] Comparative Example 1

[0062] Refer to Figure 3 and a denim fabric is prepared in this comparative example. The specific preparation method is as follows

[0063] (1) The warp yarn 10 is made of pure cotton yarn. The yarn twist of the warp yarn 10 is 78 turns / 10 cm, and the yarn count of the warp yarn 10 is 14S. Piece dyeing is carried out on the warp yarn 10, and indigo dye is used for dyeing.

[0064] (2) The weft yarn 20 is made of pure cotton yarn. The twist of the weft yarn 20 is 66 turns / 10 cm, and the yarn count of the weft yarn 20 is 14S.

[0065] (3) The woven structure of the denim fabric is designed as 3 / 1 right twill. In each tissue cycle, each warp and weft yarn interlaces once. The warp float is 1. The loom-state density of the warp and weft yarns is 70×50.

[0066] (4) The weaving process mainly includes: spinning, winding, warping, sizing, drawing-in, weaving, and after-finishing. The after-finishing includes: singeing, desizing, skewing, and shrink-proofing.

[0067] Performance Test

[0068] (1) The resilience of the denim fabrics prepared in the examples and comparative examples is measured respectively according to the method specified in ASTM D3107.

[0069] (2) Test the fabric grammage before and after the water washing step according to the method specified in ASTM D3776.

[0070] (3) Wrinkle resistance: Test the wrinkle resistance of the denim fabrics prepared in each example and comparative example according to the method specified in GB / T 29257-2012.

[0071] (4) Contact cool feeling coefficient: Test the contact cool feeling coefficient of the denim fabrics prepared in each example and comparative example according to the method specified in GB / T 35263-2017 "Textiles - Detection and evaluation of instantaneous contact cool feeling performance"; when the test result is ≥ 0.15, it is determined to meet the standard.

[0072] The performance test data of the examples and comparative examples are shown in Table 1 below:

[0073] Table 1

[0074]

[0075] As can be seen from Table 1, the denim fabrics prepared in Example 1 and Example 2 by the method of the present application use an elastic core-spun yarn with a specific structure as the warp yarn 10, and a blended yarn of ice-sensing nylon staple fiber and bio-based sorona fiber as the weft yarn 20, and control the floating length of the fabric structure of the denim fabric to be 4 or 8 tissue points. The obtained denim fabric has a wrinkle resistance of more than 3 levels, and the contact cool feeling coefficient reaches more than 0.15; moreover, the denim fabric has good resilience in both the warp and weft directions.

[0076] For Comparative Example 1, the warp yarn 10 and weft yarn 20 use traditional pure cotton yarn, and in the fabric structure, a traditional 3 / 1 right twill with a floating length of 3 tissue points is adopted. The obtained denim fabric has a wrinkle resistance of only 1 level, and the contact cool feeling coefficient is also low, without the cool feeling characteristic.

[0077] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0078] The above-described embodiments only represent several implementation manners of the present utility model. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent should be subject to the appended claims, and the description can be used to explain the content of the claims.

Claims

1. A cool-sensation and wrinkle-resistant denim fabric, characterized in that, It includes interwoven warp yarns and weft yarns; the warp yarns are elastic core-spun yarns, and the elastic core-spun yarns include a yarn core and an outer sheath layer covering the outer surface of the yarn core; the yarn core is a bio-based sorona fiber filament, and the outer sheath layer includes a blended yarn formed by blending at least one of cotton fiber, cellulose fiber and viscose fiber with bio-based sorona fiber; the weft yarn is a blended yarn formed by blending jade-containing nylon fiber and bio-based sorona fiber. The float length of the yarns of the cool-sensation and wrinkle-resistant denim fabric is 4 to 8 tissue points, and the number of times each warp yarn and each weft yarn are interwoven in each weave cycle is 1 to 2 times.

2. The denim fabric according to claim 1, characterized in that, The fineness of the bio-based sorona fiber filament in the elastic core-spun yarn is 70D to 200D.

3. The denim fabric according to claim 1, wherein, The proportion of the bio-based sorona fiber in the outer sheath layer of the elastic core-spun yarn is 20% to 60%.

4. The denim fabric according to claim 1, characterized in that, The quantity ratio of the bio-based sorona fiber to the jade-containing nylon fiber in the weft yarn is (1 to 2.5):

1.

5. The denim fabric according to any one of claims 1 to 4, characterized in that, The yarn count of the warp yarn is 10S to 20S; and / or, the yarn count of the weft yarn is 16S to 40S.

6. The denim fabric according to any one of claims 1 to 4, characterized in that, The twist of the warp yarn is 40 turns / 10 cm to 100 turns / 10 cm; and / or, the twist of the weft yarn is 50 turns / 10 cm to 120 turns / 10 cm.

7. The denim fabric according to any one of claims 1 to 4, characterized in that, The loom density of the warp yarn is 45 threads per inch to 90 threads per inch; and / or, the loom density of the weft yarn is 35 threads per inch to 90 threads per inch.

8. The denim fabric according to any one of claims 1 to 4, characterized in that, The structure of the denim fabric adopts twill weave.

9. The denim fabric according to claim 8, characterized in that, The repeat of the weave structure of the denim fabric is 1 to 3.

10. A kind of clothing, characterized in that, The garment includes the denim fabric according to any one of claims 1 to 9.

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