WO2023077745A1

WO2023077745A1 - Single-substance flexible high-elastic flaky textile fabric and preparation method therefor

Info

Publication number: WO2023077745A1
Application number: PCT/CN2022/089060
Authority: WO
Inventors: 何贤德; 胡军岩; 张海涛; 陈长荣; 昝涛
Original assignee: 东莞超盈纺织有限公司
Priority date: 2021-11-02
Filing date: 2022-04-25
Publication date: 2023-05-11
Also published as: EP4428281A1; CN113957596A

Abstract

A single-substance flexible high-elastic flaky textile fabric and a preparation method therefor. The single-substance flexible high-elastic flaky textile fabric is formed by weaving at least two single-substance elastic yarns including Y1 yarns and Y2 yarns, and the elastic yarns are woven into coils and then are mutually sleeved together to form a fabric body with a serial structure and a parallel structure. The modulus of the Y1 yarn is smaller than or equal to that of the Y2 yarn, or the yarn count of the Y1 yarn is smaller than or equal to that of the Y2 yarn. Along with the change in the modulus or yarn count of the elastic yarns, the initial openness and modulus of the fabric body in the warp direction and the weft direction are changed. The fabric body is of a warp knitting structure or a weft knitting structure, tension is applied to the fabric body, and in the tension increasing process, the fabric body forms an integral structure with a serial structure and a parallel structure, such that the initial openness or modulus of the Y1 yarns or the Y2 yarns is increased. By means of the design of the serial structure and the parallel structure, the deformation of large openness in a low-modulus stage is realized, and the characteristics of high elasticity, light weight, high modulus, flexibility, air permeability, large-area sheet shape, cutting and the like are achieved.

Description

A kind of flexible high-elastic sheet textile fabric of a single substance and its preparation method

technical field

The invention relates to the field of textile fabrics, in particular to a flexible high-elastic sheet-like textile fabric of a single substance and a preparation method thereof.

Background technique

Soft, comfortable and stylish underwear products (underwear, corsets or sportswear) are the first choice for contemporary women who pursue fashion and health. As an important textile product, knitted fabric has developed rapidly in recent years and occupies an important position in underwear, sports, leisure and other application fields. 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 characteristic of high elasticity. No matter how woven fabrics are designed, they cannot achieve the high elasticity of knitted fabrics, which is determined by their structural nature.

As modern women's pursuit of health and comfort is becoming more and more intense, soft, comfortable and stylish underwear products have gradually become market consumer demand. However, underwear products with support and pull-up effects on the market lack wearing comfort, have strangle marks, oppress women's bodies, and burden women's body beauty. This type of underwear product cannot meet the consumer demands that have a certain support effect while being comfortable to wear without pressure or strangle marks, so there is an extremely urgent need for a highly elastic fabric to be supplied to the market. But at the same time, we have to face the lower recovery rate brought by the high elasticity of knitted fabrics compared with elastic woven fabrics. A low response rate will have a very bad influence and experience on the use of garments, and it is also a major problem for fashion designers. For this problem, how to deal with it has become a difficult point for those skilled in the art. High elasticity and high recovery rate are the actual needs of consumers. Moreover, the tightness of the garment needs to be adjusted according to actual needs during use, and these needs must be met at the same time.

Spandex fiber is an excellent elastic fiber. Its elastic elongation is 450%-700%, and its elastic recovery rate is over 95%. It is strong and durable. Its excellent stretch and recovery properties increase the fit and comfort of clothing. and drapability. However, spandex also has its disadvantages, such as sticky feeling, easy to turn yellow, etc. Generally, elastic knitted fabrics are blended with spandex and other yarns, and the elasticity and recovery rate of the fabric cannot reach the elasticity and recovery rate of pure spandex. It is difficult to adapt to people's needs.

technical problem

The invention overcomes the problems that the elasticity and recovery rate of fabrics in the prior art are difficult to meet people's needs and the comfort is poor.

technical solution

A method for preparing a flexible and highly elastic sheet-like textile fabric of a single substance, comprising the following steps:

It is woven with at least two elastic yarns of the same material and a single substance, including Y1 yarn and Y2 yarn. After each elastic yarn is woven into a coil, it is looped together to form a fabric with both a series structure and a parallel structure. Ontology;

The modulus of Y1 yarn ≤ the modulus of Y2 yarn, or the yarn count of Y1 yarn ≤ the yarn count of Y2 yarn; the fabric body varies with the modulus or yarn count of the elastic yarn, and the fabric body The initial opening and modulus in the warp and weft directions change accordingly;

The fabric body is a warp-knitted structure or a weft-knitted structure, which acts as a tension force on the fabric body and in the process of increasing the tension, the fabric body forms an overall structure in which series and parallel structures coexist, so that the warp of the Y1 yarn or Y2 yarn The initial opening or modulus in the direction or weft direction becomes larger

When the fabric body is a weft-knitted structure, as the tension on the fabric body increases, a series structure is formed in the warp direction. Specifically, the Y1 yarn is first pulled to deform the Y1 yarn, and the Y1 yarn drives the Y2 yarn The initial warp opening and modulus of the warp gradually increase; a parallel structure is formed in the weft direction. Specifically, the Y2 yarn is first pulled to deform the Y2 yarn, and the Y2 yarn drives the weft initial opening of the Y1 yarn and The modulus gradually increases;

When the fabric body is a warp-knitted structure, as the tension on the fabric body increases, a series structure is formed in the weft direction. Specifically, the Y1 yarn is first pulled to deform the Y1 yarn, and the Y1 yarn drives the Y2 yarn The weft initial opening and modulus of the Y2 yarn gradually become larger; a parallel structure is formed in the warp direction, specifically, the Y2 yarn is first pulled to deform the Y2 yarn, and the Y2 yarn drives the warp initial opening of the Y1 yarn and The modulus increases gradually.

In the series structure of the fabric body, when the tension of the fabric body is applied, the same tension is transmitted to the elastic yarns with different moduli, and the elastic yarn with a small modulus is deformed first, and then the comprehensive modulus of the fabric body is different. The elastic yarns with low modulus are used in turn; at this time, the comprehensive modulus of the fabric body is the minimum value of the elastic yarn modulus; in the parallel structure, when the tension on the fabric body acts, the tension is distributed among the elastic yarns Above all, each elastic yarn produces the same deformation and the synthesis of each modulus results in the composite modulus of the fabric body, that is, the composite modulus of the fabric body is greater than the modulus of any elastic yarn.

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

The loops formed by the Y1 yarn and the loops 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.

The single material elastic yarn is any one of spandex yarn, hard elastic fiber, polyolefin elastic fiber, composite elastic fiber, polyetherester elastic fiber, polyurethane fiber and diene elastic fiber.

The fabric body is mesh fabric or double flattened fabric.

The fabric body is a plain weave double-sided structure.

The elastic yarn density is 50-200 denier.

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

Beneficial effect

Through the design of the series structure and the parallel structure of the fabric body, the invention realizes the deformation of the large opening in the low modulus stage, improves the stretching comfort range of the fabric, and has high elasticity, lightness, high modulus, and flexibility , breathable, large-area flakes, can be cut and other characteristics, it is mainly used in the middle layer of clothing, improve the modulus, recovery rate and wrinkle resistance of composite materials, can be widely used in underwear, corsets, sportswear and other clothing.

Description of drawings

Fig. 1 is a schematic diagram of the principle of the present invention;

Fig. 2 is the structural representation of embodiment 1 of the present invention;

Fig. 3 is a schematic diagram of a weft-knitting structure coil of the present invention;

A is a series structure, B is a parallel structure.

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, for those of ordinary skill in the art, they can be understood according to specific circumstances The specific meanings of the above terms in the present invention.

As shown in accompanying drawings 1-3, the present invention discloses a flexible and highly elastic sheet-like textile fabric of a single substance, including a fabric body, which is woven by at least two elastic yarns of the same material and a single substance , In this embodiment, two yarns, Y1 yarn and Y2 yarn, are used as an example for illustration. The Y1 yarn and the Y2 yarn are woven to form several coils, and then the coils are entrained 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, the fabric body changes with the modulus or yarn count of the elastic yarn, and the fabric body The initial opening and modulus in the warp and weft directions change accordingly.

Of course, in the case of meeting other requirements, three elastic yarns can also be used to weave to form the fabric body, or a greater number of elastic yarns. And each elastic yarn is a single substance, which is the same material, thereby obtaining a fabric of a single substance.

For example, as shown in Figure 1, through such a series and parallel structure, 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.

The fabric body is a warp-knitted structure or a weft-knitted structure, which exerts tension on the fabric body and in the process of increasing the tension, the fabric body forms a series or parallel structure in the warp direction and weft direction respectively, so that Y1 yarn or Y2 The initial opening or modulus of the warp or weft direction of the yarn becomes larger.

More specifically, when the fabric body is a weft-knitted structure, as the tension on the fabric body increases, a series structure is formed in the warp direction: first pull the Y1 yarn to deform the Y1 yarn, and the Y1 yarn drives the Y2 yarn The warp initial opening and modulus of the thread gradually increase; a parallel structure is formed in the weft direction: Y2 yarn is pulled to deform the Y2 yarn, and Y2 yarn drives the weft initial opening and modulus of Y1 yarn Gradually get bigger.

When the fabric body is a warp-knitted structure, as the tension on the fabric body increases, a series structure is formed in the weft direction: first pull the Y1 yarn to deform the Y1 yarn, and the Y1 yarn drives the weft direction of the Y2 yarn The initial opening and modulus gradually become larger; a parallel structure is formed in the warp direction: first pull the Y2 yarn to deform the Y2 yarn, and the Y2 yarn drives the warp initial opening and modulus of the Y1 yarn to gradually increase .

It can be seen from the stress situation of different organizational structures above that the stress of different elastic yarns will have a related impact on other elastic yarns, making the initial opening and modulus of the corresponding direction of the corresponding elastic yarns larger.

Through the series and parallel structure design of the elastic yarn modulus in the fabric body, the change of different elastic yarns is used to realize the deformation of the large opening at the low modulus stage, and to improve the range of stretch comfort of the fabric body. And it has the characteristics of high elasticity, light and thin, high modulus, flexibility, breathability, large area sheet, and can be cut. It is mainly used in the middle layer of clothing to improve the modulus, recovery rate and wrinkle resistance of composite materials.

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 the example, the elastic yarn is selected as spandex yarn, that is, the entire fabric body is woven by spandex yarn.

The fabric body is a mesh fabric or a double-flattened fabric, which adopts a plain weave double-sided structure.

In addition, the elastic yarn density is 50-200 denier, and the elastic recovery rate of the fabric obtained by weaving is above 95%, which can ensure that the fabric body has good resilience.

In the present invention, by adjusting the modulus or yarn count of Y1 yarn and Y2 yarn, the initial opening degree and modulus of the fabric body in the warp and weft directions are changed. When the fabric body is a weft-knitted structure, each yarn receives the same tensile force in the warp direction, so the warp direction opening and modulus of the fabric are determined by the smallest yarn. As the tension increases, the original low-modulus yarn Due to the change of tensile properties, when the modulus is greater than that of the high modulus yarn, the original high modulus yarn takes over the low modulus yarn and continues to deform; when the fabric body is stretched in the weft direction, the force on the fabric body is changed by Y1 yarn and Y2 yarn The two yarns of the thread bear separately and the initial opening and modulus are determined by the thickest elastic yarn; while the warp knitting structure is just the opposite, the warp opening and modulus are determined by the thickest yarn, and the weft direction The 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 characteristic of large opening deformation in the low modulus stage.

Weaving plain or double-sided fabrics on the weft knitting machine can make the fabric reach the required elasticity and modulus by changing the specifications of the spandex yarn fed into each channel. When using, if the modulus is required to be small, the warp direction can be consistent with the direction of use, and if the modulus is required to be large, the weft direction can be consistent with the direction of use.

The following will be described with specific embodiments.

Example 1:

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

2. Warping of spandex yarn:

Warping machine type: Karl Mayer DSE-H21/30 NC-2, positive yarn feeding.

Warping temperature: 24°C Warping humidity: 78%.

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

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

4. Finishing project.

Washed - Ordered - Inspected.

5. Test results

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 wrapped together by the loops where the Y1 yarn and the Y2 yarn are located to form a soft and light fabric . In different weave structures, different situations are formed. In the series structure (weft direction), the same tensile force is transmitted to the yarn structure with different modulus, so that the yarn with small modulus is deformed first, and then the fabric is deformed. The integrated modulus of the two yarns is used alternately with low modulus; therefore, the integrated 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 its modulus The synthesis of the amount and the same deformation to adapt to the given tension; therefore, the integrated 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, that is, the Y2 yarn It is determined that the weft opening and modulus are determined by the thinnest 70D yarn, that is, 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 flakes, and can be tailored. It is mainly used in underwear, corsets or sports aprons. The middle layer of the fabric improves the modulus, recovery rate and wrinkle resistance of the composite material.

Example 2:

On the basis of embodiment 1, adopt Y1 yarn yarn-PU 105D and Y2 Yarn-PU 140D are woven into double drawer plain warp knitted fabric. After the elastic test, in the series structure (weft direction), the same tensile force is transmitted to the yarn structure of different modulus, As a result, the yarn with a small modulus is deformed first, and the composite modulus of the fabric is used alternately with the low modulus of the two yarns; therefore, the composite 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, The synthesis of its modulus and the same deformation are adapted to the given tensile force; therefore, the integrated 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, that is, Y2 Determined by the yarn, the weft opening and modulus are determined by the thinnest 105D yarn, that is, the Y1 yarn, that is, the Y1 yarn.

Example 3:

Yarns: Y1 yarn-PU 75D+Y2 yarn-PU 140D are woven into plain double-sided weft-knitted fabrics. After elastic testing, in the series structure (radial direction), the same tensile force is transmitted to yarns with different moduli Structurally, the yarn with a small modulus is deformed first, and the composite modulus of the fabric is used alternately with the low modulus of the two yarns; therefore, the composite modulus of the fabric is the minimum value of the yarn modulus; in the parallel structure (latitudinal direction), The tensile force is distributed on the two yarns, and its modulus is synthesized and deformed in the same way to adapt to the given tensile force; therefore, the integrated modulus of the fabric is greater than the modulus of any independent yarn, and its warp opening and modulus are determined by the most The thick 140D yarn is determined by the Y2 yarn, and the weft opening and modulus are determined by the thinnest 75D yarn, namely the Y1 yarn.

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, those skilled in the art can still implement the foregoing Modifications to the technical solutions described in the examples, or equivalent replacements for some of the technical features, but within the spirit and principles of the present invention, any modifications, equivalent replacements, improvements, etc., shall be included in the protection of the present invention. within range.

Claims

A method for preparing a flexible and highly elastic sheet-like textile fabric of a single substance is characterized in that it comprises the following steps:

It is woven with at least two elastic yarns of the same material and a single substance, including Y1 yarn and Y2 yarn. After each elastic yarn is woven into a coil, it is looped together to form a fabric with both a series structure and a parallel structure. Ontology;

The modulus of Y1 yarn ≤ the modulus of Y2 yarn, or the yarn count of Y1 yarn ≤ the yarn count of Y2 yarn; the fabric body varies with the modulus or yarn count of the elastic yarn, and the fabric body The initial opening and modulus in the warp and weft directions change accordingly;

The fabric body is a warp-knitted structure or a weft-knitted structure, which acts as a tension force on the fabric body and in the process of increasing the tension, the fabric body forms an overall structure in which series and parallel structures coexist, so that the warp of the Y1 yarn or Y2 yarn The initial opening or modulus in the direction or weft direction becomes larger.
The method for preparing a flexible and highly elastic sheet-like textile fabric of a single substance according to claim 1, wherein, in the series structure of the fabric body, when the tension of the fabric body acts, the same tension is transmitted to the elasticity of different moduli. On the yarn, the elastic yarn with a small modulus is deformed first, and then the comprehensive modulus of the fabric body is used in turn by the low modulus of each elastic yarn; at this time, the comprehensive modulus of the fabric body is the modulus of the elastic yarn The minimum value of ; in the parallel structure, when the tension on the fabric body is applied, the tension is distributed on each elastic yarn, and each elastic yarn produces the same deformation and the synthesis of each modulus to obtain the composite modulus of the fabric body, That is, the composite modulus of the fabric body is greater than the modulus of any elastic yarn.
The method for preparing a flexible and highly elastic sheet-like textile fabric of a single substance according to claim 1, wherein when the fabric body is a weft-knitted structure, as the tension on the fabric body increases, a warp is formed in the warp direction. Series structure, specifically pulling the Y1 yarn first to deform the Y1 yarn, Y1 yarn drives the warp direction initial opening and modulus of the Y2 yarn to gradually increase; forming a parallel structure in the weft direction, specifically pulling the Y1 yarn first The Y2 yarn deforms the Y2 yarn, and the Y2 yarn drives the weft initial opening and modulus of the Y1 yarn to gradually increase;

When the fabric body is a warp-knitted structure, as the tension on the fabric body increases, a series structure is formed in the weft direction. Specifically, the Y1 yarn is first pulled to deform the Y1 yarn, and the Y1 yarn drives the Y2 yarn The weft initial opening and modulus of the Y2 yarn gradually become larger; a parallel structure is formed in the warp direction, specifically, the Y2 yarn is first pulled to deform the Y2 yarn, and the Y2 yarn drives the warp initial opening of the Y1 yarn and The modulus increases gradually.
A flexible and highly elastic sheet-like textile fabric of a single substance is characterized in that it includes a fabric body, and the fabric body is woven by at least two elastic yarns of the same material and a single material including Y1 yarn and Y2 yarn The Y1 yarn and the Y2 yarn are looped and connected to each other to form a series structure part and a parallel structure part; wherein, the modulus of the Y1 yarn ≤ the modulus of the Y2 yarn, or the yarn count of the Y1 yarn ≤ Yarn count of Y2 yarn.
The single-material flexible and highly elastic sheet-like textile fabric according to claim 4 is characterized in that, when the fabric body is a weft-knitted structure, the loops formed by the Y1 yarn and the Y2 yarn are formed on the surface of the fabric. The warp direction of the main body is respectively connected to form a series structure, and the weft direction is respectively connected to form a parallel structure.
The single-material flexible and highly elastic sheet-like textile fabric according to claim 4 is characterized in that, when the fabric body is a warp-knitted structure, the loops formed by the Y1 yarn and the Y2 yarn are formed on the surface of the fabric. The warp direction of the main body is respectively connected to form a parallel structure, and the weft direction is respectively connected to form a series structure.
The flexible high-elastic sheet textile fabric of a single substance according to claim 4, wherein the elastic yarn of the single substance is spandex yarn, hard elastic fiber, polyolefin elastic fiber, composite elastic fiber, polyether Any of ester elastic fibers, polyurethane fibers, and diene elastic fibers.
The flexible and highly elastic sheet-like textile fabric of single material according to claim 5 is characterized in that the fabric body is a mesh fabric or a double-flattened fabric, and the fabric body is a plain weave double-sided structure.
The single-material flexible high-elastic sheet-like textile fabric according to claim 8 is characterized in that: the density of the elastic yarn is 50-200 denier.
According to claim 9, the single-material flexible high-elastic sheet-like textile fabric is characterized in that: the elastic recovery rate of the fabric body is above 95%.