Warm-keeping elastic denim fabric

Abstract

The utility model discloses a warm-keeping elastic jean fabric, which belongs to the textile field and comprises warp yarns and weft yarns interwoven with each other, the weft yarns comprise first weft yarns and second weft yarns, the count of the first weft yarns is smaller than that of the second weft yarns, and the first weft yarns comprise first yarn cores, cotton-wrapped yarns and moisture-absorbing heating acrylic fibers which are wound on the surfaces of the first yarn cores; the second weft yarn comprises spandex serving as a second yarn core and a covering layer covering the spandex, and the elasticity of the first yarn core is weaker than that of the spandex. The first weft yarns are thicker than the second weft yarns, and the second weft yarns are tensioned by utilizing the elasticity of the spandex, so that the second weft yarns are positioned at positions closer to the interior of the fabric and are not easily hooked by a fleece machine, the spandex is less exposed and broken after raising, the elasticity reduction amplitude of the fabric after fleece is greatly reduced, and the second weft yarns are more easily hooked by the fleece machine; and the hooked fibers after fleece raising mainly come from the cotton wrapped yarns on the outer surfaces of the first weft yarns, the moisture-absorbing and heat-emitting acrylic fibers and the warp yarns, so that the fluff can absorb moisture and emit heat, and is good in warm-keeping capability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of elastic denim fabric of warmth, belong to textile field. BACKGROUND

[0002] Since the introduction of jeans into China, it has occupied a considerable share in the clothing market. Jeans with different functional characteristics are used for different scenarios and different seasons. In order to resist the cold, the denim fabric is often brushed on the denim bottom in winter, forming fluff on the bottom. When the fluff comes into contact with the skin, the gap between the fluff can store heat.

[0003] In the prior art, if elastic denim fabric is to be made, elastic core spun yarn is usually used as weft to weave denim fabric. However, in the brushing and raising process of general elastic denim fabric, not only the outer fibers of the core spun yarn are hooked and broken by the brushing machine to raise the fluff, but also the elastic core is exposed, and even part of the core is broken, resulting in a significant decrease in the elasticity of the fabric and causing loss of elasticity. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the utility model provides an elastic denim fabric with warmth, which still has good elasticity after brushing and raising.

[0005] The utility model solves the technical problems by adopting the following technical solutions:

[0006] An elastic denim fabric with warmth includes warp and weft that are interwoven with each other. The weft includes side-by-side first weft and second weft. The count of the first weft is less than that of the second weft. The first weft includes a first core and cotton package wrap yarn and moisture-absorbing and heat-generating acrylic that are wrapped on the surface of the first core. The second weft includes spandex as a second core and a cladding layer that clads the spandex. The elasticity of the first core is weaker than that of the spandex.

[0007] The elastic denim fabric with warmth provided in the present application is easier to be hooked by the brushing machine when receiving brushing and raising because the first weft is thicker than the second weft. The second weft is thinner and is pulled tight by the elasticity of spandex, so it is located closer to the inside of the fabric, which is equivalent to being away from the bottom surface of the fabric to some extent and is not easy to be hooked by the brushing machine. After receiving brushing and raising, the spandex is less exposed and is rarely broken, which greatly reduces the degree of decrease in the elasticity of the fabric after brushing. The hooked fibers mainly come from the cotton package wrap yarn, moisture-absorbing and heat-generating acrylic on the outer surface of the first weft, and the warp, so the fluff can absorb moisture and heat, and the warmth-keeping ability is good.

[0008] Further, the count of the second weft is 1.1 to 1.5 times the count of the first weft.

[0009] The second weft yarn is thinner, and the possibility of being hooked off is reduced during the process of picking, and the first weft yarn is thicker, and the formed pile is more uniform and beneficial to the overall warmth performance of the fabric.

[0010] Further, the count of the second weft yarn is 1.2 times of the count of the first weft yarn, which is beneficial to the coordination of the warmth and elasticity of the fabric.

[0011] Further, one of the cotton wrapped yarn and the moisture-absorbing and heat-generating acrylic is wrapped in the S direction on the surface of the first core, and the other is wrapped in the Z direction on the surface of the first core, and the wrapping mode forms an interlaced structure, which is beneficial to the more closely wrapped first core surface of the outer yarn.

[0012] Further, the first core comprises the parallel porous polyester and T400 fiber. The structure of the porous polyester provides a space for storing heat, and the T400 fiber has a certain elasticity, which is beneficial to reducing the elasticity difference between the first weft yarn and the second weft yarn.

[0013] Further, the elasticity of the second weft yarn is stronger than that of the first weft yarn, and the difference between the elastic elongation rates of the second weft yarn and the first weft yarn is within 10%. The elasticity difference between the two weft yarns is small, the fabric structure formed after the warp and weft yarns are interlaced is more uniform, the fabric maintains good dimensional stability during stretching and recovery, and the pile distribution after picking is more uniform.

[0014] Further, the radial cross-sectional area of the T400 fiber accounts for 20% of the radial cross-sectional area of the first weft yarn, which is beneficial to the structure stability and warmth performance of the fabric after picking.

[0015] Further, the weaving ratio of the first weft yarn and the second weft yarn is 1:1.

[0016] Further, the warp yarn and the weft yarn are interwoven in a three-over-one-under twill.

[0017] Further, the warm and elastic jean fabric further comprises the pile of the first weft yarn extending out of the cloth bottom.

[0018] The warm and elastic jean fabric of the utility model has the following advantages: when the warm and elastic jean fabric is subjected to picking and raising, the first weft yarn is thicker than the second weft yarn, the second weft yarn is pulled tight by the elasticity of spandex, so the second weft yarn is closer to the inside of the fabric, which is equivalent to being away from the bottom surface of the fabric to a certain extent, and the second weft yarn is not easy to be hooked by the picking machine, after being subjected to picking and raising, the spandex is exposed less and is rarely broken, and the elasticity of the fabric after picking is greatly reduced, the second weft yarn is more likely to be hooked by the picking machine, and the fibers hooked out after picking and raising mainly come from the cotton wrapped yarn, the moisture-absorbing and heat-generating acrylic and the warp yarn on the outer surface of the first weft yarn, so the pile can absorb moisture and generate heat, and the warmth performance is good.

[0019] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure schematic view of a warm elastic jean fabric provided by an embodiment of the present application.

[0021] Figure 2 is a structure schematic view of a first weft yarn provided by an embodiment of the present application.

[0022] Figure 3 is a radial cross-section structure comparison view of the first weft yarn and the second weft yarn.

[0023] Reference signs: 1, first weft yarn; 111, porous polyester; 112, T400 fiber; 12, cotton wrapped yarn; 13, moisture-absorbing and heat-generating acrylic; 2, second weft yarn; 21, spandex; 22, cladding layer; 3, warp yarn. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described in detail below with reference to the accompanying drawings. Examples of the embodiments are shown in the drawings, in which the same or similar components are denoted by the same or similar reference numerals throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.

[0025] The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplification, the components and arrangements of the specific examples are described in the following. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application can repeatedly refer to numerals and / or letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as is commonly understood by one of ordinary skill in the art to which this application belongs. If there is a conflict between the definitions of terms in this disclosure and the patent, the definitions in this disclosure are intended to control.

[0027] Reference Figures 1 to 3The embodiment of the present application provides a warm and elastic jean fabric, which comprises warp yarns 3 and weft yarns 3 interwoven with each other, the weft yarns comprise side-by-side first weft yarns 1 and second weft yarns 2, the count of the first weft yarns 1 is less than that of the second weft yarns 2, the first weft yarns 1 comprise first yarn cores and cotton wrapped yarns 12 and moisture-absorbing and heat-generating acrylics 13 wrapped on surfaces of the first yarn cores, the second weft yarns 2 comprise spandex 21 as second yarn cores and coating layers 22 coated outside the spandex 21, and the elasticity of the first yarn cores is weaker than that of the spandex 21. Figure 3 Part b of the figure shows the structure of the second weft yarns.

[0028] With reference to Figure 1 The first weft yarns 1 are thicker than the second weft yarns 2, and thus are more easily hooked by the pinking machine; and the second weft yarns 2 are thinner and are pulled tight by the elasticity of the spandex 21, and thus are closer to the inside of the fabric, and are equivalent to being away from the surface of the fabric that can be touched to a certain extent, and are not easily hooked by the pinking machine.

[0029] After being subjected to pinking, the spandex 21 is exposed less, and the range of the decrease in the elasticity of the fabric after pinking is greatly reduced, and the fibers hooked are mainly from the cotton wrapped yarns 12 and the moisture-absorbing and heat-generating acrylics 13 on the outer surfaces of the first weft yarns 1 and the warp yarns 3, and thus the pile can absorb moisture and generate heat, and the warmth-keeping capability is good.

[0030] When the warp yarns 3 and the weft yarns are interwoven in a three-over-one-under twill, the front surface of the fabric has a twill structure like a general jean fabric, the weft organization points of the cloth base are much more than the warp organization points, and the second weft yarns 2 are thinner and are pulled tight by the elasticity of the spandex 21, and thus the pile after pinking is mainly provided by the cotton wrapped yarns 12 and the moisture-absorbing and heat-generating acrylics 13 on the outer surfaces of the first weft yarns 1.

[0031] In some embodiments, the count of the second weft yarns 2 is 1.1 times to 1.5 times the count of the first weft yarns 1. The first weft yarns are thicker and are more easily hooked by the pinking machine when pinking, and the second weft yarns are thinner and are not easily hooked by the pinking machine or damaged, and the risk of the loss of elasticity is reduced. The count ratio is set in the range of 1.1 times to 1.5 times, which can ensure the uniformity and warmth-keeping capability of the pile and also take into account the elasticity and durability of the fabric as a whole.

[0032] More preferably, the count of the second weft yarns 2 is 1.2 times the count of the first weft yarns 1, for example, the count of the first weft yarns 1 is 10S, the count of the second weft yarns 2 is 12S, and the warp yarns are 10S indigo-dyed cotton yarns. The ratio makes the fabric reach the best balance among the warmth-keeping capability, the elasticity and the durability after pinking, and also ensures that the distribution of the pile after pinking is more natural.

[0033] With reference to Figure 2 and Figure 3In the part a of the figure, one of the cotton package wrapped yarn 12 and the moisture-absorbing and heat-generating acrylic 13 is wrapped in the S direction on the surface of the first yarn core, and the other is wrapped in the Z direction on the surface of the first yarn core. It should be noted that, Figure 2 In order to clearly show the two different directions of rotation, the cotton package wrapped yarn 12 and the moisture-absorbing and heat-generating acrylic 13 are drawn more sparsely. In actual production, the cotton package wrapped yarn 12 and the moisture-absorbing and heat-generating acrylic 13 are wrapped more closely around the first yarn core, and the first yarn core cannot be seen on the outside.

[0034] The S direction and the Z direction of the wrapping method form a symmetrical and tight outer layer structure. This interlaced wrapping can effectively improve the structural stability of the surface layer of the first weft yarn 1, which is conducive to enhancing the protection effect of the first yarn core. Because the yarns in the two wrapping directions are interlaced with each other, the distribution of the pile is more uniform, which is more conducive to the synergistic effect of the cotton package wrapped yarn and the moisture-absorbing and heat-generating acrylic, and further improves the warmth retention performance of the pile.

[0035] If the elasticity of the first weft yarn 1 and the second weft yarn 2 is too different, it will cause the fabric to deform. Accordingly, the first yarn core includes the porous polyester 111 and the T400 fiber 112 in parallel. The T400 fiber has a certain elasticity, and the elasticity of the T400 fiber is realized by the spiral structure, so even if it is hooked off, it will not be greatly shortened, which is conducive to reducing the difference in elasticity between the first weft yarn 1 and the second weft yarn 2. The porous polyester 111 is used to provide a certain warmth retention capability, and is wrapped in parallel with the T400 fiber, which can limit the elasticity of the T400 fiber to a certain extent, and ensure that the second weft yarn 2 has the maximum elastic elongation in the fabric. Preferably, the elasticity of the second weft yarn 2 is stronger than that of the first weft yarn 1, and the difference between the elastic elongation of the second weft yarn 2 and the first weft yarn 1 is within 10%.

[0036] Specifically, the radial cross-sectional area of the T400 fiber 112 accounts for 20% of the radial cross-sectional area of the first weft yarn 1, which avoids weakening the warmth retention performance due to too high T400 proportion, and at the same time, this structure design makes the first weft yarn more compact as a whole.

[0037] Preferably, the weaving ratio of the first weft yarn 1 and the second weft yarn 2 is 1:1. Compared with the cotton package spandex single core yarn, the structure formed by the first weft yarn 1 is more compact, and the outer layer of the moisture-absorbing and heat-generating acrylic generates heat when it comes into contact with the skin, which achieves the warmth retention effect in cooperation with the porous polyester 111 in the first yarn core. The count of the second weft yarn 2 is greater than that of the first weft yarn 1. In the process of picking, the picker first contacts the first weft yarn 1, reducing the loss of elasticity of the second weft yarn 2. The second weft yarn 2 with the strongest elasticity will shrink after daily washing, forming a skeleton-like support effect, which is convenient for supporting the root of the picked part, avoiding the collapse of the pile after washing, and the space formed by the support can provide a heat storage space, which is conducive to the long-term warmth retention effect.

[0038] In the description of the present specification, the description referring to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "example", "specific example", or "some examples" and the like means that the particular feature, structure, material, or characteristic being described is included in at least one embodiment or example of the present application. The illustrative descriptions of such terms do not necessarily refer to the same embodiment or example, though they can. Furthermore, the described particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0039] The above is the preferred embodiment of the present application, it should be pointed out that, for those skilled in the technical field, without departing from the principles of the present application, can make a number of improvements and refinements, these improvements and refinements also as the protection scope of the present application.

Claims

1. A warm and elastic denim fabric comprising warp threads (3) and weft threads interwoven with each other, characterized in that, The weft yarns include side-by-side first weft yarn (1) and second weft yarn (2), the first weft yarn (1) has smaller count than the second weft yarn (2), the first weft yarn (1) includes first yarn core and cotton package wrap yarn (12) and moisture-absorbing and heat-generating acrylic (13) wrapped on the surface of the first yarn core, the second weft yarn (2) includes spandex (21) as second yarn core and cladding layer (22) cladded on the spandex (21), the elasticity of the first yarn core is weaker than the elasticity of the spandex (21).

2. The thermal, elastic denim fabric of claim 1, wherein, The count of the second weft yarn (2) is 1.1 times to 1.5 times of the count of the first weft yarn (1).

3. The thermal, elastic denim fabric of claim 2, wherein, The count of the second weft yarn (2) is 1.2 times of the count of the first weft yarn (1).

4. The thermal, elastic denim fabric of claim 1, wherein, One of the cotton package wrap yarn (12) and the moisture-absorbing and heat-generating acrylic (13) is wrapped on the surface of the first yarn core in S direction, and the other is wrapped on the surface of the first yarn core in Z direction.

5. The thermal, elastic jean fabric of claim 1, wherein, The first yarn core includes side-by-side porous polyester (111) and T400 fiber (112).

6. The thermal, elastic jean fabric of claim 5, wherein, The elasticity of the second weft yarn (2) is stronger than the elasticity of the first weft yarn (1), and the difference between the elastic elongation of the second weft yarn (2) and the elastic elongation of the first weft yarn (1) is within 10%.

7. The thermal, elastic jean fabric of claim 5, wherein, The radial cross-sectional area of the T400 fiber (112) accounts for 20% of the radial cross-sectional area of the first weft yarn (1).

8. The thermal, elastic jean fabric of claim 1, wherein, The weaving ratio of the first weft yarn (1) and the second weft yarn (2) is 1:

1.

9. The thermal, elastic jean fabric of claim 1, wherein, The warp yarn (3) and the weft yarn are interwoven in three over one under twill.

10. The thermal, elastic jean fabric of claim 1, wherein, It also includes the pile of the first weft yarn (1) extending to the cloth bottom.

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