Air-layer-imitated jean fabric

Abstract

The utility model discloses a jean fabric imitating an air layer, which belongs to the field of textile, warps are divided into surface warps and inner warps, the surface warps and wefts are interwoven into a surface layer in a first twill mode, warp weave points of the surface layer are more than weft weave points, the inner warps and wefts are interwoven into an inner layer in a second twill mode, and weft weave points of the inner layer are more than the warp weave points. The warp weave points of the inner layer are located below the warp weave points of the surface layer, the weft yarns comprise first elastic weft yarns, a large number of floating threads exist in the surface layer and the inner layer, the fabric shrinks to enable the floating threads to expand under the pulling of shrinkage of the first weft yarns, and the floating threads of the surface layer expand upwards and the floating threads of the inner layer expand downwards due to hindering of the interweaving points; the upward-expanding floating threads and the downward-expanding floating threads are matched, so that the fabric becomes fluffy, air flow is hindered to a certain extent, the air warm-keeping effect is achieved, coating finishing is not needed, washing water treatment needed by jeans wear can be endured, fleece and raising are not needed, and the strength of the fabric cannot be reduced.

Description

Technical Field

[0001] The utility model relates to an air layer imitation denim fabric, belonging to the textile field. Background Art

[0002] With the development of economy, people's pursuit of denim clothing is not only about style design, but also about functionality and comfort. For example, in autumn and winter, consumers require denim clothing to have warmth-keeping function. In order to improve the warmth-keeping ability of fabrics, it is generally achieved by functional material coating or post-finishing fleece treatment.

[0003] If functional coating treatment is used, the warmth-keeping effect of ordinary fabrics will be improved to a certain extent. However, since denim clothing needs to be washed to achieve the unique distressed effect of denim clothing, and the clothes are made first and then washed, the effect of the coating will be greatly affected in harsh environments such as chlorine bleaching, oxygen bleaching, and enzyme bleaching. After being treated in a strong oxidizing environment, the coating will accelerate aging and falling off, and the warmth-keeping effect will continue to weaken.

[0004] If the technical route of fleece treatment is adopted, on the one hand, the fluff is actually formed by broken fibers, and while obtaining the fluff, the strength of the fabric is sacrificed, and the fabric is prone to cracking; on the other hand, fleece treatment destroys the texture of the base of the fabric, and even exposes the fluff on the surface of the fabric, making it difficult to achieve the retro texture and washed style of conventional twill denim fabrics, so the existing technology needs to be improved. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, the utility model provides an air layer imitation denim fabric, which can improve the warmth retention capacity of the denim fabric without relying on coating or fleece.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] An air layer-imitation denim fabric comprises a system of weft yarns and two systems of warp yarns, wherein the warp yarns are divided into surface warps and inner warps, wherein the surface warps and the weft yarns are interwoven with a first twill to form a surface layer, wherein the warp tissue points of the surface layer are more than the weft tissue points, wherein the inner warps and the weft yarns are interwoven with a second twill to form an inner layer, wherein the weft tissue points of the inner layer are more than the warp tissue points, wherein the first twill is parallel to the second twill, wherein the warp tissue points of the inner layer are always located below the warp tissue points of the surface layer, wherein the weft yarns comprise first weft yarns, wherein the elastic elongation of the first weft yarns is 6%-20% greater than that of the surface warps, and the elastic elongation of the first weft yarns is 6%-20% greater than that of the inner warps.

[0008] The surface layer and inner layer of the air-imitation denim fabric provided by the present application are both twill interwoven, and there are a large number of floating threads in both layers. The elastic first weft yarn will shrink, and the elastic elongation of the warp yarn is smaller than that of the first weft yarn. Under the pull of the first weft yarn shrinkage, the fabric shrinks and causes the floating threads to expand. The surface floating threads expand upward and the inner floating threads expand downward due to the obstruction of the interlacing points. The upwardly expanded floating threads and the downwardly expanded floating threads cooperate to make the fabric fluffy and hinder the air flow to a certain extent, thereby achieving the effect of air warming. If the difference in elasticity between the warp yarn and the first weft yarn is too small, the expansion amplitude of the floating threads is not obvious. If the difference in elasticity between the warp yarn and the first weft yarn is too large, the fabric will be severely deformed after being unloaded, and the fabric surface is not beautiful. Moreover, the floating threads are over-expanded and protrude away from the fabric surface, which makes it difficult to trap air. The difference in elastic elongation of 6%-20% just allows the fabric to show the texture of the denim fabric, and the expanded and protruding floating threads can hinder the air flow, which has a better warming effect.

[0009] In a preferred embodiment, the weft yarn further comprises a second weft yarn, and the elastic elongation of the first weft yarn is 6%-20% greater than that of the second weft yarn. By placing the first weft yarn with strong elasticity side by side with the second weft yarn with no elasticity (or low elasticity), the different shrinkage degrees of the two yarns can be utilized to make the expansion bulge formed by the floating thread larger.

[0010] In a preferred embodiment, the second weft yarn and the first weft yarn are arranged side by side in a ratio of 2-4:1, which is beneficial to increasing the weft size of the expanded bulge of the floating thread while ensuring that the expanded bulge of the floating thread can easily hinder the air flow.

[0011] In a preferred embodiment, the surface warp is thicker than the lining warp, which helps to prevent the inner layer from being visible from the front side of the fabric.

[0012] Furthermore, the number of threads of the inner warp is 2 to 6 times the number of threads of the outer warp.

[0013] Furthermore, the number of threads of the inner warp is 3 to 5 times the number of threads of the outer warp.

[0014] In a preferred embodiment, the lining warp is core-spun yarn, including a moisture-absorbing and heating yarn core and a honeycomb polyester covering layer. The honeycomb polyester covering layer has moisture-conducting ability and can transfer the water vapor emitted by the human body to the moisture-absorbing and heating yarn core, thereby enhancing the warmth-keeping effect of the fabric.

[0015] Furthermore, the mass ratio of the hygroscopic and heat-generating yarn core to the honeycomb polyester covering layer is 4-5:2, which is conducive to fully exerting the hygroscopic and heat-generating effect.

[0016] In some embodiments, the surface warp and the weft yarn are interwoven in a two-up and one-down twill, and the lining warp and the weft yarn are interwoven in a one-up and two-down twill.

[0017] In some embodiments, the surface warp and the weft yarn are interwoven in a three-up and one-down twill, and the lining warp and the weft yarn are interwoven in a one-up and three-down twill.

[0018] The beneficial effect of the utility model is that in the air layer imitation denim fabric of the utility model, there are a large number of floating threads both in the surface layer and the inner layer. Under the pulling of the contraction of the elastic first weft yarn, the fabric contracts to make the floating threads expand. Obstructed by the interlacing points, the floating threads of the surface layer expand upward, and the floating threads of the inner layer expand downward. The cooperation of the floating threads that expand upward and the floating threads that expand downward can make the fabric fluffy and hinder the air flow to a certain extent, so as to achieve the effect of air warmth. No coating finishing is required, and it can withstand the washing treatment required for denim clothing. No fleece raising is required, and the strength of the fabric will not be reduced.

[0019] Other features and advantages of the present application will be described in the following description, and partly 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

[0020] Figure 1 This is a diagram of the organizational structure of an air layer imitation denim fabric provided in an embodiment of the present application.

[0021] Figure 2 It is a structural schematic diagram of a lining provided in an embodiment of the present application.

[0022] Figure numerals: 51, honeycomb polyester covering layer; 52, moisture-absorbing and heat-generating yarn core. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0024] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0027] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0028] It is clear to those skilled in the art that, for a single-layer woven fabric, the warp points on the technical front side are weft points on the technical back side, and the weft points on the technical front side are warp points on the technical back side. For the convenience of description, in the entire application, unless the "top side", "bottom side", "front side" and "back side" are explicitly defined, when "warp points" or "weft points" are mentioned separately, it is assumed that the description is based on the technical front side.

[0029] Reference Figure 1The embodiment of the present application provides an air layer-imitation denim fabric, comprising a system of weft yarns and two systems of warp yarns, the warp yarns are divided into surface warps and inner warps, the surface warps and weft yarns are interwoven into a surface layer with a first twill, the surface layer has more warp tissue points than weft tissue points, the inner warps and weft yarns are interwoven into an inner layer with a second twill, the inner layer has more weft tissue points than warp tissue points, the first twill is parallel to the second twill, the warp tissue points of the inner layer are always below the warp tissue points of the surface layer, the weft yarns include first weft yarns, the elastic elongation of the first weft yarns is 6%-20% greater than that of the surface warp, and the elastic elongation of the first weft yarns is 6%-20% greater than that of the inner warp.

[0030] Specifically, the surface warp and weft yarns are interwoven in a two-up-one-down twill, and the lining warp and weft yarns are interwoven in a one-up-two-down twill; or, the surface warp and weft yarns are interwoven in a three-up-one-down twill, and the lining warp and weft yarns are interwoven in a one-up-three-down twill, so that both sides of the fabric have the texture of traditional denim fabric.

[0031] exist Figure 1 In the figure, Arabic numerals are used to represent the serial number of the weft yarn, lowercase English letters are used to represent the serial number of the lining warp, and uppercase English letters are used to represent the serial number of the surface warp. As a drawing convention in this field, shaded cells represent warp weaving points (seen from the front of the process), and unfilled cells represent weft weaving points (seen from the front of the process). For example, the interweaving point of the warp yarn in column A and the weft yarn in row 2 is the weft weaving point formed by the surface warp and the weft yarn. If viewed from the back of the process, this point is the warp weaving point. The four columns of warp in columns A, B, C, and D are interwoven with the four rows of weft yarns in rows 1, 2, 3, and 4 with the first twill to form the surface layer, with more warp weaving points than weft weaving points. The four columns of lining warp in columns a, b, c, and d are interwoven with the four rows of weft yarns in rows 1, 2, 3, and 4 with the second twill to form the inner layer, with more weft weaving points than warp weaving points. Figure 1 It can be seen that the first twill is parallel to the second twill, and the difference in number between the surface warp points and the surface weft points is equal to the difference in number between the inner weft points and the inner warp points. Figure 1 In the shown embodiment, the surface warp and weft yarns are interwoven in a three-up and one-down twill, and the lining warp and weft yarns are interwoven in a one-up and three-down twill. As a drawing convention in this field, the lining structure is drawn next to the surface layer to facilitate comparative observation. In fact, the lining layer is under the surface layer, the lining warp a is under the surface warp A, the lining warp b is under the surface warp B, the lining warp c is under the surface warp C, and the lining warp d is under the surface warp D. It can be seen that the warp organization points of the lining layer are always below the warp organization points of the surface layer.

[0032] The thermal conductivity of still air is lower than that of ordinary fibers. For example, the principle of filled air-warming clothing such as cotton coats and down jackets is to use the filling down to fix the air as much as possible, increase the thickness of the clothes without increasing the weight of the clothes, and increase the thermal resistance of the clothes.

[0033] The surface layer and the inner layer of the embodiment of the present application are both twill interwoven, and both have a large number of floating threads. The elastic first weft yarn will shrink, and the elastic elongation of the warp yarn is smaller than that of the first weft yarn. Under the pulling of the shrinking first weft yarn, the fabric shrinks and causes the floating threads to swell. Obstructed by the interweaving points, the floating threads of the surface layer swell upward, and the floating threads of the inner layer swell downward. The cooperation of the floating threads that swell upward and the floating threads that swell downward can make the fabric fluffy and hinder the air flow to a certain extent, thereby achieving the effect of air warmth. No coating is required, and it can withstand the washing treatment required for denim clothing. No fleece raising is required, and the strength of the fabric will not be reduced.

[0034] If the difference in elasticity between the warp yarn and the first weft yarn is too small, the expansion of the floating thread will not be obvious. If the difference in elasticity between the warp yarn and the first weft yarn is too large, the fabric will be severely deformed after leaving the machine, and the fabric surface will be unsightly. Moreover, the floating thread will expand excessively and protrude away from the fabric surface, making it difficult to trap air. The difference in elastic elongation of 6%-20% just allows the fabric to show the texture of denim fabric, and the expanded and protruding floating thread can form an air layer structure similar to that of cotton clothes, which has a better warming effect.

[0035] The key point of the embodiment of the present application is to make the floating threads of the surface layer and the inner layer as fluffy as possible to hinder the air flow. The weft yarn needs to shrink and pull the fabric, but it cannot be too tight. Preferably, the weft yarn also includes a second weft yarn, and the elastic elongation of the first weft yarn is 6%-20% greater than that of the second weft yarn. The first weft yarn with strong elasticity and the second weft yarn with no elasticity (or low elasticity) are arranged side by side, which can release a certain space in the weft direction for the floating threads to be fluffy and protrude, which is conducive to increasing the range of the simulated air layer. More preferably, the second weft yarn and the first weft yarn are arranged side by side in a ratio of 2-4:1.

[0036] In some embodiments, the outer warp is thicker than the inner warp, which is helpful to avoid the inner layer being visible from the front of the fabric. For example, the count of the inner warp is 2 to 6 times the count of the outer warp. Preferably, the count of the inner warp is 3 to 5 times the count of the outer warp. In a specific embodiment, the outer warp can be 10S cotton yarn and the inner warp is 32S modal yarn.

[0037] Reference Figure 2 In a preferred embodiment, the lining warp is core-spun yarn, including a hygroscopic and heating yarn core 52 and a honeycomb polyester coating layer 51. As an existing product, the hygroscopic and heating yarn core 52 can be a hygroscopic and heating viscose fiber. In addition to the warm-keeping effect of the imitation air layer, the honeycomb polyester coating layer 51 has an excellent moisture-conducting effect. The water vapor emitted by the human body is transferred to the hygroscopic and heating yarn core 52 through the honeycomb polyester coating layer 51, which can absorb water vapor to generate heat, thereby improving the warmth retention effect of the fabric under the dual effect, making it more comfortable to wear. Preferably, the mass ratio of the hygroscopic and heating yarn core to the honeycomb polyester coating layer is 4-5:2, which is conducive to giving full play to the hygroscopic and heating effect.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0039] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. An air layer-imitation denim fabric, characterized in that: The invention comprises a system of weft yarns and two systems of warp yarns, wherein the warp yarns are divided into surface warps and inner warps, wherein the surface warps and the weft yarns are interwoven into a surface layer with a first twill, wherein the warp points of the surface layer are more than the weft points, and the inner warps and the weft yarns are interwoven into an inner layer with a second twill, wherein the weft points of the inner layer are more than the warp points, the first twill is parallel to the second twill, and the warp points of the inner layer are always located below the warp points of the surface layer, and the weft yarns comprise first weft yarns, wherein the elastic elongation of the first weft yarns is 6%-20% greater than that of the surface warps, and the elastic elongation of the first weft yarns is 6%-20% greater than that of the inner warps.

2. The air layer-imitation denim fabric according to claim 1, characterized in that: The weft yarn further includes a second weft yarn, and the elastic elongation of the first weft yarn is 6%-20% greater than that of the second weft yarn.

3. The air layer imitation denim fabric according to claim 2, characterized in that: The second weft yarn and the first weft yarn are arranged side by side in a ratio of 2-4:

1.

4. The air layer imitation denim fabric according to claim 1, characterized in that: The outer warp is thicker than the inner warp.

5. The air layer imitation denim fabric according to claim 4, characterized in that: The number of the inner warp is 2 to 6 times the number of the outer warp.

6. The air layer imitation denim fabric according to claim 5, characterized in that: The number of the inner warp is 3 to 5 times the number of the outer warp.

7. The air layer imitation denim fabric according to claim 1, characterized in that: The inner warp is core-spun yarn, comprising a moisture-absorbing and heat-generating yarn core and a honeycomb polyester covering layer.

8. The air layer imitation denim fabric according to claim 7, characterized in that: The mass ratio of the moisture-absorbing and heat-generating yarn core to the honeycomb polyester covering layer is 4-5:

2.

9. The air layer imitation denim fabric according to claim 1, characterized in that: The surface warp and the weft yarn are interwoven in a two-up and one-down twill, and the lining warp and the weft yarn are interwoven in a one-up and two-down twill.

10. The air layer imitation denim fabric according to claim 1, characterized in that: The surface warp and the weft yarn are interwoven in a three-up and one-down twill, and the lining warp and the weft yarn are interwoven in a one-up and three-down twill.

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