A single-material flexible high-elastic sheet-like textile fabric and preparation method thereof

Abstract

A single-substance flexible high-elastic sheet-like textile fabric and a preparation method thereof are woven by at least two elastic yarns of the same material and single substance, including Y1 yarn and Y2 yarn. After the elastic yarns are woven into coils, they are mutually intertwined to form a fabric body with a series structure and a parallel structure; the modulus of the Y1 yarn is ≤ the modulus of the Y2 yarn, or the yarn count of the Y1 yarn is ≤ the yarn count of the Y2 yarn; the initial opening and modulus of the warp and weft directions of the fabric body change as the modulus or yarn count of the elastic yarn changes; the fabric body is a warp knitting structure or a weft knitting structure, and a tension is applied to the fabric body, and in the process of increasing the tension, the fabric body forms an overall structure with a series and parallel structure, so that the initial opening or modulus of the Y1 yarn or the Y2 yarn becomes larger. The present invention realizes deformation with a large opening in the low modulus stage through the design of the series and parallel structures, and has the characteristics of high elasticity, lightness, high modulus, flexibility, air permeability, large-area sheet, and cuttable.

Description

Technical Field

[0001] The invention relates to the field of textile fabrics, in particular to a single-material flexible high-elastic sheet-shaped textile fabric and a preparation method thereof. Background Art

[0002] Soft, comfortable and stylish underwear products (underwear, corsets or sports braces) are the first choice for contemporary women who pursue fashion and health. As an important textile product, knitted fabrics have been rapidly developed in recent years and occupy an important position in the application fields of underwear, sports, leisure, etc. Its fiber consumption accounts for about 50% of the total consumption, and it is still increasing. So what is the most important advantage of knitted fabrics compared to woven fabrics? Undoubtedly, it is the feature of high elasticity. No matter how woven fabrics are designed, they cannot achieve the high elasticity of knitted fabrics. This is determined by their structural nature.

[0003] As modern women's pursuit of health and comfort becomes stronger and stronger, soft, comfortable and stylish underwear products have gradually become market consumer demand. However, underwear products with support and lifting effects on the market lack wearing comfort, have marks when worn, oppress the female body, and burden the beauty of the female body. This type of underwear product cannot meet the consumer demand for having a certain lifting and supporting effect while being comfortable to wear without pressure and marks, so there is an urgent need for a highly elastic fabric to supply the market. But at the same time, we have to face the lower recovery rate caused by the high elasticity of knitted fabrics compared to elastic woven fabrics. The low recovery rate will have a very bad impact and experience on the use of ready-made clothes, and it is also a major problem that troubles fashion designers. How to deal with this problem has become a difficulty for existing technicians. High elasticity and high recovery rate are both actual needs of consumers, and the tightness of the ready-made clothes needs to be adjusted according to actual needs during use, and these needs need to be met at the same time.

[0004] Spandex fiber is an excellent elastic fiber with an elastic elongation of 450%-700% and an elastic recovery rate of more than 95%. It is strong and durable, and its excellent stretch and recovery properties increase the fit, comfort and drape of clothing. However, because spandex also has its disadvantages, such as stickiness and easy yellowing, general elastic knitted fabrics are blended with spandex and other yarns, and the elasticity and recovery rate of the fabric cannot reach that of pure spandex, making it difficult to meet people's needs. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a method for preparing a flexible and highly elastic sheet-like textile fabric made of a single material.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A method for preparing a flexible and highly elastic sheet-like textile fabric of a single substance comprises the following steps:

[0008] It is knitted with at least two elastic yarns of the same material and a single substance, including Y1 yarn and Y2 yarn, and each elastic yarn is woven into coils and then intertwined with each other to form a fabric body with a series structure and a parallel structure.

[0009] The modulus of the Y1 yarn is ≤ the modulus of the Y2 yarn, or the yarn count of the Y1 yarn is ≤ the yarn count of the Y2 yarn; as the modulus or yarn count of the elastic yarn changes, the initial opening and modulus of the warp and weft directions of the fabric body change accordingly;

[0010] The fabric body is a warp knitted structure or a weft knitted structure, and a tensile force is applied to the fabric body. During the process of increasing the tensile force, the fabric body forms an overall structure in which a series structure and a parallel structure coexist, so that the initial opening degree or modulus of the warp or weft direction of the Y1 yarn or the Y2 yarn becomes larger.

[0011] When the fabric body is a weft knitted structure, as the pulling force on the fabric body increases, a series structure is formed in the warp direction, specifically, the Y1 yarn is pulled first to deform the Y1 yarn, and the Y1 yarn drives the initial warp opening and modulus of the Y2 yarn to gradually increase; a parallel structure is formed in the weft direction, specifically, the Y2 yarn is pulled first to deform the Y2 yarn, and the Y2 yarn drives the initial weft opening and modulus of the Y1 yarn to gradually increase;

[0012] When the fabric body is a warp knitted structure, as the pulling force on the fabric body increases, a series structure is formed in the weft direction, specifically, the Y1 yarn is pulled first to deform the Y1 yarn, and the Y1 yarn drives the Y2 yarn to gradually increase its initial weft opening and modulus; a parallel structure is formed in the warp direction, specifically, the Y2 yarn is pulled first to deform the Y2 yarn, and the Y2 yarn drives the Y1 yarn to gradually increase its initial warp opening and modulus.

[0013] In the series structure of the fabric body, when tension acts on the fabric body, the same tension is transmitted to the elastic yarns with different moduli, and the elastic yarns with small moduli are deformed first, thereby causing the comprehensive modulus of the fabric body to be the result of the alternating use of the low moduli of each elastic yarn; at this time, the comprehensive modulus of the fabric body is the minimum value of the elastic yarn modulus; in the parallel structure, when tension acts on the fabric body, the tension is distributed on each elastic yarn, and each elastic yarn produces the same deformation and the synthesis of each modulus obtains the comprehensive modulus of the fabric body, that is, the comprehensive modulus of the fabric body is greater than the modulus of any elastic yarn.

[0014] A flexible and highly elastic sheet-like textile fabric of a single material comprises a fabric body, wherein the fabric body is woven by at least two elastic yarns of the same material and a single material, including a Y1 yarn and a Y2 yarn, wherein the Y1 yarn and the Y2 yarn are respectively coiled and then connected to each other to form a series structure part and a parallel structure part; wherein the modulus of the Y1 yarn is ≤ the modulus of the Y2 yarn, or the yarn count of the Y1 yarn is ≤ the yarn count of the Y2 yarn.

[0015] The coils formed by the Y1 yarn and the coils formed by the Y2 yarn are respectively connected in the warp direction and the weft direction of the fabric body to form a series structure and a parallel structure.

[0016] The elastic yarn of a single substance is any one of spandex yarn, hard elastic fiber, polyolefin elastic fiber, composite elastic fiber, polyether ester elastic fiber, polyurethane fiber and diene elastic fiber.

[0017] The fabric body is a mesh fabric or a double-flattened fabric.

[0018] The fabric body is a plain double-sided structure.

[0019] The elastic yarn density is 50-200 deniers.

[0020] The elastic recovery rate of the fabric body is above 95%.

[0021] The present invention realizes a large-opening deformation in the low modulus stage through the design of the series structure and the parallel structure of the fabric body, thereby improving the range of the stretch comfort of the fabric, and has the characteristics of high elasticity, lightness, high modulus, flexibility, breathability, large-area sheet, and tailorability. It is mainly used in the middle layer of clothing to improve the modulus, recovery rate and wrinkle resistance of the composite material, and can be widely used in underwear, corsets, sportswear and other clothing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the principle of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0024] Figure 3 It is a schematic diagram of the weft knitting structure coil of the present invention;

[0025] A is a series structure and B is a parallel structure. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, examples of which 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.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] As attached Figure 1-3 As shown, the present invention discloses a flexible and highly elastic sheet-like textile fabric of a single material, including a fabric body, which is woven by at least two elastic yarns of the same material and a single material. In this embodiment, two yarns, Y1 yarn and Y2 yarn, are used as examples for explanation. Y1 yarn and Y2 yarn are woven to form a plurality of coils, and then the coils are mutually looped together to form a series structure A and a parallel structure B. The modulus of Y1 yarn ≤ the modulus of Y2 yarn, or the yarn count of Y1 yarn ≤ the yarn count of Y2 yarn. As the modulus or yarn count of the elastic yarn changes, the initial opening and modulus of the warp and weft directions of the fabric body change accordingly.

[0029] Of course, in the case of meeting other requirements, three elastic yarns can be used to weave the fabric body, or a larger number of elastic yarns. Each elastic yarn is a single substance, the same material, so as to obtain a single-substance fabric.

[0030] For example, Figure 1 As shown, through this structure of coexistence of series and parallel connection, no matter in which direction the force is applied, the initial opening and modulus of a certain elastic yarn in the warp or weft direction will increase.

[0031] The fabric body is a warp knitted structure or a weft knitted structure. Tension is applied to the fabric body and during the process of increasing tension, the fabric body forms a series or parallel structure in the warp direction and the weft direction, respectively, so that the initial opening or modulus of the Y1 yarn or Y2 yarn in the warp direction or the weft direction becomes larger.

[0032] More specifically, when the fabric body is a weft knitted structure, as the pulling force on the fabric body increases, a series structure is formed in the warp direction: first, the Y1 yarn is pulled to deform the Y1 yarn, and the Y1 yarn drives the Y2 yarn's initial warp opening and modulus to gradually increase; a parallel structure is formed in the weft direction: the Y2 yarn is pulled to deform the Y2 yarn, and the Y2 yarn drives the Y1 yarn's initial weft opening and modulus to gradually increase.

[0033] When the fabric body is a warp knitted structure, as the pulling force on the fabric body increases, a series structure is formed in the weft direction: first, the Y1 yarn is pulled to deform the Y1 yarn, and the Y1 yarn drives the Y2 yarn's weft initial opening and modulus to gradually increase; a parallel structure is formed in the warp direction: first, the Y2 yarn is pulled to deform the Y2 yarn, and the Y2 yarn drives the Y1 yarn's warp initial opening and modulus to gradually increase.

[0034] From the stress conditions of the above different organizational structures, it can be seen that the stress of different elastic yarns will have a correlated influence on other elastic yarns, making the initial opening and modulus of the corresponding direction of the corresponding elastic yarn larger.

[0035] Through the series and parallel structural design of the modulus of each elastic yarn in the fabric body, and by utilizing the changes in different elastic yarns, a large degree of deformation in the low modulus stage is achieved, thereby improving the range of stretch comfort of the fabric body. The fabric has the characteristics of high elasticity, lightness, high modulus, flexibility, breathability, large-area sheet shape, and can be cut. It is mainly used in the middle layer of clothing to improve the modulus, recovery rate and wrinkle resistance of the composite material.

[0036] In the series structure of the fabric body, when tension acts on the fabric body, the same tension is transmitted to the elastic yarns with different moduli, and the elastic yarns with small moduli are deformed first, thereby causing the comprehensive modulus of the fabric body to be the result of the alternating use of the low moduli of each elastic yarn; at this time, the comprehensive modulus of the fabric body is the minimum value of the elastic yarn modulus; in the parallel structure, when tension acts on the fabric body, the tension is distributed on each elastic yarn, and each elastic yarn produces the same deformation and the synthesis of each modulus obtains the comprehensive modulus of the fabric body, that is, the comprehensive modulus of the fabric body is greater than the modulus of any elastic yarn.

[0037] In addition, the elastic yarn of the single substance is any one of spandex yarn, hard elastic fiber, polyolefin elastic fiber, composite elastic fiber, polyether ester elastic fiber, polyurethane fiber and diene elastic fiber. In this embodiment, the elastic yarn is selected as spandex yarn, that is, the entire fabric body is woven from spandex yarn.

[0038] The fabric body is a mesh fabric or a double-flattened fabric, and adopts a plain double-sided structure.

[0039] In addition, the elastic yarn density is 50-200 deniers, and the elastic recovery rate of the woven fabric is above 95%, which can ensure that the fabric body has good resilience.

[0040] In the present invention, the fabric body changes its initial opening and modulus in the warp and weft directions by adjusting the modulus or yarn count of the Y1 yarn and the Y2 yarn. When the fabric body is a weft knitted structure, each yarn is subjected to the same tension in the warp direction, so the warp opening and modulus of the fabric are determined by the smallest yarn. As the tension increases, the original low modulus yarn changes due to the change in tensile properties. When its modulus is greater than that of the high modulus yarn, the original high modulus yarn replaces the low modulus yarn and continues to deform; when the fabric body is stretched in the weft direction, the force is borne by the two yarns Y1 and Y2 respectively, and the initial opening and modulus are determined by the thickest elastic yarn; while the warp knitted structure is just the opposite, the warp opening and modulus are determined by the thickest yarn, and the weft opening and modulus are determined by the thinnest yarn. Therefore, it can be ensured that both the warp knitted structure and the weft knitted structure have the characteristics of large opening deformation in the low modulus stage.

[0041] When weaving plain or double-sided fabric on a weft knitting machine, the fabric can reach the required elasticity and modulus by changing the specifications of the spandex yarn fed in each way. When using it, if a smaller modulus is required, the warp direction can be aligned with the direction of use; if a larger modulus is required, the weft direction can be aligned with the direction of use.

[0042] The following is an explanation with reference to specific embodiments.

[0043] Embodiment 1:

[0044] Elastic yarn used: Y1 yarn-PU 70D + Y2 yarn-PU 105D.

[0045] 2. Warping of spandex yarn:

[0046] Warping machine model: Karl Mayer DSE-H21 / 30NC-2, positive yarn feeding.

[0047] Warping temperature: 24°C Warping humidity: 78%.

[0048] The workshop sets the process parameters under the above temperature and humidity conditions.

[0049] 3. Weaving equipment: 32-needle Raschel warp knitting machine.

[0050] 4. Post-processing.

[0051] Washing - reservation - cloth inspection.

[0052] 5. Test results

[0053]

[0054]

[0055] From the test results in the table above, it can be seen that the warp knitted fabric body is woven by two spandex yarns of different fineness, and the fabric body is formed by the coils of the Y1 yarn and the Y2 yarn together to form a soft and thin fabric. Different situations are formed in different tissue structures. In the series structure (weft direction), the same tension is transmitted to the yarn structure with different moduli, so that the yarn with small modulus is deformed first, and then the comprehensive modulus of the fabric is the alternating use of the two yarns with low modulus; therefore, the comprehensive modulus of the fabric is the minimum value of the yarn modulus; in the parallel structure (radial direction), the tension is distributed on the two yarns, and the synthesis of their moduli and the same deformation are adapted to the given tension; therefore, the comprehensive modulus of the fabric is greater than the modulus of any independent yarn, and its warp opening and modulus are determined by the thickest 105D yarn, namely the Y2 yarn, and the weft opening and modulus are determined by the thinnest 70D yarn, namely the Y1 yarn. It can also be seen from this that through this structural setting, the obtained fabric has the characteristics of high elasticity, lightness, high modulus, flexibility, breathability, large-area sheet, and tailorability. It is mainly used in the middle layer of fabrics for underwear, corsets or sportswear to improve the modulus, recovery rate and wrinkle resistance of the composite material.

[0056] Embodiment 2:

[0057] On the basis of Example 1, Y1 yarn-PU 105D and Y2 yarn-PU 140D are used to weave a double-stretch plain warp knitted fabric. According to the elastic test, in the series structure (weft direction), the same tension is transmitted to the yarn structure with different moduli, so that the yarn with small modulus is deformed first, and then the comprehensive modulus of the fabric is the alternating use of the two yarns with low modulus; therefore, the comprehensive modulus of the fabric is the minimum value of the yarn modulus; in the parallel structure (radial direction), the tension is distributed on the two yarns, and the synthesis of their moduli and the same deformation are adapted to the given tension; therefore, the comprehensive modulus of the fabric is greater than the modulus of any independent yarn, and its warp opening and modulus are determined by the thickest 140D yarn, namely Y2 yarn, and the weft opening and modulus are determined by the thinnest 105D yarn, namely Y1 yarn, namely Y1 yarn.

[0058] Embodiment 3:

[0059] The yarns: Y1 yarn-PU 75D + Y2 yarn-PU 140D are used to weave a plain double-sided weft-knitted fabric. After the elastic test, in the series structure (radial direction), the same tension is transmitted to the yarn structure with different moduli, so that the yarn with small modulus is deformed first, and then the comprehensive modulus of the fabric is the alternating use of the two yarns with low modulus; therefore, the comprehensive modulus of the fabric is the minimum value of the yarn modulus; in the parallel structure (weft direction), the tension is distributed on the two yarns, and the synthesis of their moduli and the same deformation are used to adapt to the given tension; therefore, the comprehensive modulus of the fabric is greater than the modulus of any independent yarn, and its warp opening and modulus are determined by the thickest 140D yarn, namely the Y2 yarn, and the weft opening and modulus are determined by the thinnest 75D yarn, namely the Y1 yarn.

[0060] It should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing a flexible and highly elastic sheet-like textile fabric of a single substance, characterized in that: The following steps are involved: The fabric is woven by at least two elastic yarns of the same material and a single substance, including Y1 yarn and Y2 yarn. After the elastic yarns are woven into coils, they are intertwined to form a fabric body with a series structure and a parallel structure. When the fabric body is a weft knitted structure, the coils formed by the Y1 yarn and the coils formed by the Y2 yarn are respectively connected in the warp direction of the fabric body to form a series structure, and are respectively connected in the weft direction to form a parallel structure. When the fabric body is a warp knitted structure, the coils formed by the Y1 yarn and the coils formed by the Y2 yarn are respectively connected in the warp direction of the fabric body to form a parallel structure. The fabric body is a warp knitting structure or a weft knitting structure, and is pulled to form a parallel structure, and is respectively connected in the weft direction to form a series structure; the modulus of the Y1 yarn is ≤ the modulus of the Y2 yarn, or the yarn count of the Y1 yarn is ≤ the yarn count of the Y2 yarn; as the modulus or yarn count of the elastic yarn changes, the initial opening and modulus of the warp and weft directions of the fabric body change accordingly; the fabric body is a warp knitting structure or a weft knitting structure, and a tensile force is applied to the fabric body, and in the process of increasing the tensile force, the fabric body forms an overall structure in which the series and parallel structures coexist, so that the initial opening or modulus of the warp or weft direction of the Y1 yarn or the Y2 yarn becomes larger.

2. The method for preparing a flexible and highly elastic sheet-like textile fabric made of a single substance according to claim 1, characterized in that: In the series structure of the fabric body, when the fabric body is pulled, the same pulling force is transmitted to the elastic yarns with different moduli, and the elastic yarn with a small modulus is deformed first, thereby causing the comprehensive modulus of the fabric body to be the result of the alternating use of the low moduli of each elastic yarn; at this time, the comprehensive modulus of the fabric body is the minimum value of the elastic yarn modulus; In the parallel structure, when tension acts on the fabric body, the tension is distributed on each elastic yarn, each elastic yarn produces the same deformation, and the synthesis of each modulus obtains the comprehensive modulus of the fabric body, that is, the comprehensive modulus of the fabric body is greater than the modulus of any elastic yarn.

3. The method for preparing a flexible and highly elastic sheet-like textile fabric made of a single substance according to claim 1, characterized in that: When the fabric body is a weft knitted structure, as the pulling force on the fabric body increases, a series structure is formed in the warp direction, specifically, the Y1 yarn is pulled first to deform the Y1 yarn, and the Y1 yarn drives the Y2 yarn to gradually increase the initial warp opening and modulus; a parallel structure is formed in the weft direction, specifically, the Y2 yarn is pulled first to deform the Y2 yarn, and the Y2 yarn drives the Y1 yarn to gradually increase the initial weft opening and modulus; when the fabric body is a warp knitted structure, as the pulling force on the fabric body increases, a series structure is formed in the weft direction, specifically, the Y1 yarn is pulled first to deform the Y1 yarn, and the Y1 yarn drives the Y2 yarn to gradually increase the initial weft opening and modulus; a parallel structure is formed in the warp direction, specifically, the Y2 yarn is pulled first to deform the Y2 yarn, and the Y2 yarn drives the Y1 yarn to gradually increase the initial warp opening and modulus.

4. A flexible and highly elastic sheet-like textile fabric made of a single material, characterized in that: The invention comprises a fabric body, which is woven by at least two elastic yarns of the same material and a single material, including a Y1 yarn and a Y2 yarn. The Y1 yarn and the Y2 yarn are respectively coiled and connected to each other to form a series structure part and a parallel structure part; wherein the modulus of the Y1 yarn is ≤ the modulus of the Y2 yarn, or the yarn count of the Y1 yarn is ≤ the yarn count of the Y2 yarn; when the fabric body is a weft knitted structure, the coils formed by the Y1 yarn and the coils formed by the Y2 yarn are respectively connected in the warp direction of the fabric body to form a series structure, and are respectively connected in the weft direction to form a parallel structure; when the fabric body is a warp knitted structure, the coils formed by the Y1 yarn and the coils formed by the Y2 yarn are respectively connected in the warp direction of the fabric body to form a parallel structure, and are respectively connected in the weft direction to form a series structure; the elastic recovery rate of the fabric body is above 95%.

5. The flexible and highly elastic sheet-like textile fabric made of a single substance according to claim 4, characterized in that: The elastic yarn of a single substance is any one of spandex yarn, hard elastic fiber, polyolefin elastic fiber, composite elastic fiber, polyether ester elastic fiber and diene elastic fiber.

6. The single-material flexible and highly elastic sheet-like textile fabric according to claim 4, characterized in that: The fabric body is a mesh fabric or a double-flattened fabric.

7. The flexible and highly elastic sheet-like textile fabric made of a single material according to claim 5, characterized in that: The elastic yarn density is 50-200 deniers.

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