CN110656435A - Warp-knitted single-layer fabric with differentiated water transfer - Google Patents

Abstract

A warp knitted single-layer fabric with differentiated water transmission, comprising a fabric body, the fabric body adopts at least one non-elastic yarn and at least one elastic yarn to be woven through three or more bars to press the fabric body bottom Facing the surface of the fabric body, a micro-diffusion layer, a diffusion-permeable layer, and a diffusion-evaporation layer are formed in sequence. Both the micro-diffusion layer and the diffusion-permeable layer are extension line layers containing several extension lines, and the diffusion-permeation layer is respectively connected with the micro-diffusion layer and the diffusion-evaporation layer. The invention realizes the differential transfer of liquid water in the fabric from the bottom of the fabric to the surface of the fabric, and improves the performance of moisture absorption and drainage.

Description

A warp knitted single-layer fabric with differential water transfer

technical field

The present invention relates to a fabric, in particular to a warp knitted single-layer fabric with differential water transfer.

Background technique

With the development of the economy, modern consumers pay more and more attention to the improvement of personal life quality, and the requirements for fabrics in terms of wearing also increase. For sports fabrics, how to reasonably remove a lot of sweat produced during exercise and avoid physical discomfort caused by excessive sweating is a direction of modern fabric development.

At present, the research on water transfer of fabrics is mainly to make the front and back sides have different water conductivity by using yarns with moisture-conducting and quick-drying properties, using post-finishing methods or through double-layer structures. For example:

Patent CN108130710A, "Preparation method of unidirectional wet-conducting fabric and unidirectional wet-conducting fabric prepared therefrom", reports that the double needle bed fabric is subjected to alkali weight reduction, hydrophilicity, one-side water repellency and plasma finishing in sequence, Achieving unidirectional wettability.

Patent CN103147203A, "a moisture-conducting and quick-drying fabric", provides a woven double-layer weave with a plain weave on the surface and a loose weave on the inner layer, and the surface and inner layers form a pore gradient structure similar to the "dry-woven fabric" of plants. Stem structure”, using the difference in pore size to form a pressure difference during water conduction, resulting in a differential effect, resulting in a unidirectional moisture conduction capability.

Patent CN1985036A, "Woven Fabric with Moisture Management Properties", reports a woven fabric consisting of a generally uniformly woven structure of hydrophobic and hydrophilic materials, with an interior of hydrophobic and hydrophilic materials And the external exposed surface, so as to realize the one-way transfer of sweat from the cloth bottom to the cloth surface.

The patent application CN 106012538 A, "The method of making a moisture-absorbing and quick-drying unidirectional and moisture-guiding double-layer fabric", reports that the double-layer fabric is made by weaving cationic polyester yarn and polyester filament, and then the double-layer fabric is woven with the modified refining agent LS01. It is a hygroscopic and quick-drying unidirectional moisture-conducting fabric made of grey fabric.

Patent CN203866490U, "A unidirectional moisture-wicking fabric structure for moisture absorption and perspiration", reports a three-dimensional multi-layer single-sided fabric structure with moisture absorption and sweat-wicking function with a cooling feeling, including a moisture-conducting layer, a diffusion layer and an evaporation layer, and the moisture-conducting layer The inner layer is designed so that the pad tissue structure is in contact with the surface of the human skin, the diffusion layer and the evaporation layer are the outer layers, which are connected by tucks and loops, and then connected to the pad structure of the moisture-conducting layer. It has the function of wicking moisture, and it also has a cool feeling in hot summer.

Patent application CN 103276601 A, "a dyeing and finishing process for moisture-absorbing and quick-drying fabrics", adopts the technological process of pre-forming of grey fabrics → pre-treatment of degreasing and desizing → dyeing → reduction cleaning → de-microfiber finishing → moisture-absorbing and quick-drying finishing → shaping It can not only maintain the moisture-wicking and sweat-wicking function of the fabric, but also maintain the hydrophobic and quick-drying function, which can meet the requirements of the fabric's moisture-absorbing and quick-drying.

However, using yarns with moisture-conducting and quick-drying properties or using post-finishing methods to achieve the effect will gradually weaken or even disappear with the increase of washing times, which is not conducive to environmental protection; the double-layer fabric can be a double-sided structure with obvious differences , but it is thicker than a single-layer fabric, and has greater limitations in terms of air permeability and stretch opening.

In addition, the combination and design of different yarns can also be used to achieve the function of water transfer differences, such as:

Patent CN207044828U, "One-way wet fabric", reports a partial water-repellent yarn formed by interweaving raw cotton yarn and hydrophilic yarn, and the hydrophilic yarn count of the surface gauze is larger than the raw cotton yarn of the inner gauze, thereby One-way wetting is achieved without any chemical treatment process.

The patent CN203938834U, "a kind of pure polyester unidirectional wet double-sided cloth", provides a pure polyester unidirectional wet weft knitted double-sided cloth with a special-shaped section polyester yarn plain weave structure on the front and a polyester low-elastic yarn fine loop structure on the reverse side, Can achieve good moisture absorption and quick drying performance.

Patent CN1985036A, "Woven Fabric with Moisture Management Properties", reports a woven fabric consisting of a generally uniformly woven structure of hydrophobic and hydrophilic materials, and having internal and Exterior exposed surfaces. Thereby, the one-way transfer of sweat from the bottom of the cloth to the surface of the cloth is realized.

Patent application CN201710717764.6, "A moisture-conducting and quick-drying knitted weft-knitted fabric and its processing technology", provides a moisture-conducting and quick-drying knitted weft-knitted fabric that is weft-knitted by at least two kinds of yarns with different DPFs. The design of the float lengths of the two different DPF yarns on both sides of the fabric achieves the realization of the differential moisture conductivity on both sides of the fabric.

However, studies on the water conductivity of warp knitted single-layer fabrics are relatively rare.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention provides a warp knitted single-layer fabric with differentiated water transfer.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

A warp knitted single-layer fabric with differentiated water transmission, comprising a fabric body, the fabric body adopts at least one non-elastic yarn and at least one elastic yarn to be woven through three or more bars to press the fabric body bottom Facing the surface of the fabric body, a micro-diffusion layer, a diffusion-permeable layer, and a diffusion-evaporation layer are formed in sequence. Both the micro-diffusion layer and the diffusion-permeable layer are extension line layers containing several extension lines, and the diffusion-permeation layer is respectively connected with the micro-diffusion layer and the diffusion-evaporation layer.

The extension line in the micro diffusion layer passes through the diffusion permeation layer and extends to the diffusion evaporation layer and is connected with the diffusion evaporation layer, the extension line in the micro diffusion layer and the extension line in the diffusion permeation layer have several contact points, and the micro diffusion layer The length of the extension line in the layer is greater than the length of the extension line in the diffusion permeable layer, and the extension line in the diffusion permeation layer is connected to the diffusion evaporation layer.

The micro-diffusion layer, the diffusion-permeable layer and the diffusion-evaporation layer are of the same-direction woven warp oblique, warp pile, warp-plain or braided structure, and the micro-diffusion layer, the diffusion-permeable layer and the diffusion-evaporation layer can be the same organization at the same time structure or a different organizational structure.

The extension line of the micro-diffusion layer is one to six stitches longer than the extension line of the diffusion permeable layer.

The micro-diffusion layer, diffusion permeable layer and diffusion evaporation layer are inelastic layers woven from at least one kind of inelastic yarn through at least two combs, and the fabric body is provided with elastic yarn through at least one comb. The elastic layer is woven from the bar, and the weave structure of each bar is looped.

The micro-diffusion layer, diffusion permeable layer and diffusion evaporation layer are formed by weaving the same non-elastic yarn or different non-elastic yarns. When the same non-elastic yarn is used, the contact angle of the non-elastic yarn is θ<80 °, DPF<2.0; when different kinds of non-elastic yarns are used, the contact angle of at least one non-elastic yarn is θ<80°, DPF<2.0.

The non-elastic yarns are filaments or staple fibers.

The fabric body is an open or closed structure.

The invention realizes the differential transfer of liquid water in the fabric from the cloth bottom to the cloth surface, and improves the performance of moisture absorption and drainage.

Description of drawings

Accompanying drawing 1 is the weft sectional structure schematic diagram of the fabric body of the present invention;

Accompanying drawing 2 is each layer extension line schematic diagram in the present invention;

Accompanying drawing 3, 4, 5 are respectively the digital schematic diagram of the yarn underlay of the bar GB1, GB2, GB3 in embodiment one;

Accompanying drawing 6 is the digital schematic diagram of laying yarn of bar GB1 in the second embodiment;

Accompanying drawing 7 is the digital schematic diagram of laying yarn of bar GB1 in embodiment three;

FIG. 8 is a digital schematic diagram of the yarn underlay of the bar GB1 in the fourth embodiment.

Detailed ways

In order to further understand the features, technical means, and specific goals and functions of the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

As shown in Figures 1 and 2, the present invention discloses a warp knitted single-layer fabric with differential water transfer, comprising a fabric body using at least one non-elastic yarn and at least one elastic yarn The threads are woven with more than three bars, and the micro-diffusion layer 1, the diffusion permeable layer 2, and the diffusion and evaporation layer 3 are formed in sequence according to the direction of the bottom of the fabric body facing the surface of the fabric body. The diffusion and permeation layer 2 is located in the middle of the fabric body. In the area between 1 and the diffusion evaporation layer 3, the diffusion evaporation layer is a circle column layer, the micro diffusion layer and the diffusion permeation layer are both extension line layers containing several extension lines, and the diffusion permeation layer is respectively connected with the micro diffusion layer and the diffusion evaporation layer. . The diffusion evaporation layer is a circle-column layer, which has a plurality of closely-connected circle-column layers in the warp direction. The fabric body is a warp knitted fabric, which is composed of loop columns and extension lines, and the micro-diffusion layer is formed by exposing the extension lines on the bottom surface of the fabric body. The micro-diffusion layer is the bottom surface layer of the fabric body, the diffusion permeable layer is the middle layer of the fabric body, and the diffusion evaporation layer is the circle column layer of the fabric body, that is, the surface layer.

The overall fabric body is woven from three or more bars, of which it is guaranteed that at least two bars are woven with non-elastic yarns respectively, and the non-elastic yarns on different bars can be the same or different, so as to ensure that at least one Non-elastic yarns are woven. The same non-elastic yarn refers to the same contact angle, DPF, particle size and other parameters of the yarn. Different non-elastic yarns have different contact angle, DPF, particle size and other parameters. The micro-diffusion layer, diffusion permeable layer and diffusion evaporation layer are formed by weaving the same non-elastic yarn or different non-elastic yarns. When the same non-elastic yarn is used, the contact angle of the non-elastic yarn is θ<80 °, DPF<2.0; when different kinds of non-elastic yarns are used, the contact angle of at least one non-elastic yarn is θ<80°, DPF<2.0. The rest of the bar is woven with elastic yarns to provide an elastic layer for the fabric body, which makes the fabric body elastic. The weave structure of each bar requires loops.

The extension line in the micro diffusion layer passes through the diffusion permeation layer and extends to the diffusion evaporation layer and is connected with the diffusion evaporation layer, the extension line in the micro diffusion layer and the extension line in the diffusion permeation layer have multiple contact points, and the micro diffusion The length of the extension line 4 in the layer 1 is greater than the length of the extension line 5 in the diffusion permeable layer 2, and the extension line in the diffusion permeation layer is connected to the diffusion evaporation layer.

The micro-diffusion layer, the diffusion-permeable layer and the diffusion-evaporation layer are of the same-direction woven warp oblique, warp pile, warp-plain or braided structure, and the micro-diffusion layer, the diffusion-permeable layer and the diffusion-evaporation layer can be the same organization at the same time structure or a different organizational structure. The extension line of the micro-diffusion layer is one to six stitches longer than the extension line of the diffusion permeable layer, preferably three stitches. For example, the micro-diffusion layer and the diffusion evaporation layer adopt the four-needle warp oblique structure, and the diffusion permeation layer adopts the warp flat structure.

The non-elastic yarns are filaments or staple fibers. The fabric body is an open or closed structure.

In the present invention, the transfer of liquid water in the fabric body is not carried out simultaneously on the bottom surface and the surface of the fabric body, but is transferred along the yarn weaving direction and the vertical stacking direction respectively, that is, by the micro-diffusion layer (the surface of the fabric body). The bottom surface layer) is transmitted through the diffusion permeable layer (the middle layer of the fabric body) to the diffusion evaporation layer (the circle column layer of the fabric body, that is, the surface layer), and is transmitted from the bottom surface of the fabric body to the surface of the fabric body. Since the warp knitted fabric is composed of extension threads and loop columns, the bottom surface is a micro-diffusion layer, that is, an extension layer. When the liquid water contacts the bottom surface of the fabric body, that is, the micro-diffusion layer, the water will flow along the yarn under the action of the capillary effect of the yarn. The weaving direction of the extension line is transmitted obliquely; it also includes the vertical water transmission formed by the superposition of yarns under the action of external additional forces (pressure, gravity, etc.); the last is the diffusion evaporation layer on the surface of the fabric body, that is, the horizontal warp between the circle and column layers. to pass.

As shown in Figures 1 and 2, the extension line length of the micro-diffusion layer is greater than the extension line length of the diffusion-permeable layer, the micro-diffusion layer yarn extension line extends into the diffusion-permeable layer and covers the extension line of the diffusion-permeable layer, and the bottom surface of the fabric body Only part of the extension lines of the microdiffusion layer are exposed. Due to the addition of elastic yarn weaving at the same time, the yarn curvature radius of the micro-diffusion layer is reduced, resulting in the reduction of the horizontal projection length _ω1 of the extension line of the micro-diffusion layer exposed on the bottom surface of the fabric body, thereby achieving water in the yarn. In the case where the transmission distance remains unchanged, the area of its horizontal projection is reduced. When liquid water comes into contact with the bottom surface of the fabric body, the first contact is the micro-diffusion layer; then the transfer of water in the diffusion-permeable layer includes two paths: Path 1: Under the action of the capillary effect of the yarn, the water flows to the micro-diffusion layer. The two ends of the extension line of the diffusion layer are transferred, and part of the water energy continues to be transferred to the diffusion evaporation layer along the extension line. The projected width of the horizontal plane exposed on the surface of the fabric body is ω ₂ , and ω ₂ is significantly larger than ω ₁ , which makes the surface and bottom surface of the fabric body wet. The exposed area is visually different; Approach 2: Because the extension line of the micro-diffusion layer is long, and the extension line of the diffusion permeable layer and the extension line of the micro-diffusion layer have multiple contact points, the water is continuously transferred during the transfer process. Under the action of external additional force and capillary effect, part of the water will directly penetrate into the extension line surface of the diffusion and penetration layer through the contact point or the gap of the fabric body, and the extension line of the diffusion penetration layer is smaller than that of the micro-diffusion layer. The extension line is short so that the water can be transferred to the surface of the fabric body in a short distance and a large amount of water, that is, the diffusion and evaporation layer. When the water is transferred to the diffusion and evaporation layer of the fabric body, because the fabric body is closely connected between the meridian and upper circle columns, the water will further spread and evaporate along the circle column surface, causing the water level difference to promote the further diffusion of water to the surface, thus forming a Differential water transfer effect.

In addition, when the yarn uses a combination of different capillary water transfer capabilities, the effect of water transfer differentiation is better.

This fabric is generally knitted by a single needle bed warp knitting machine, and the density of its knitting needles is controlled between 14-50 per inch. The linear density of the chemical fiber filament used is between 7-300 denier, and the linear density of the spandex elastic yarn is between 20-210 denier. And the gram weight range of the fabric is controlled between 80 g/m2 and 550 g/m2.

Example 1

In this embodiment, three bars are used for weaving, namely, bars GB1, GB2, and GB3, wherein GB1 and GB2 are respectively woven with different types of non-elastic yarns, and GB3 is woven with elastic yarns.

Knitting is carried out on the premise that the GB1 extension line is greater than the GB2 extension line, the contact angle θ ₁ of the selected yarn in GB1 <the contact angle θ ₂ of the GB2 yarn, and the DPF ₁ of the GB1 yarn < The DPF ₂ of the GB2 yarn. The specific parameters are as follows:

1. The warping yarn used in warp knitting:

1) Filament warping:

Warping machine type: Karl Mayer DS 21/30 NC-2, passive yarn feed.

Warping temperature: 25℃ Warping humidity: 65%

2) Spandex warping:

Warping machine type: Karl Mayer DS 21/30 NC-2, passive yarn feed.

Warping temperature: 25℃ Warping humidity: 65%

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

2. Weaving

Weaving machine model: Karl·Mayer HKS4-1 EL or other warp knitting machines that meet the requirements.

Machine number range: E14-E40

The way of threading is full.

Use yarn:

GB1: PES 30D/12f SD FDY, yarn number: 1-0/4-5//, as shown in Figure 3.

GB2: PES 40D/72f SD DTY, the number of padding: 1-0/1-2//, as shown in Figure 4.

GB3: PU 40D, yarn number: 1-2/1-0//, as shown in Figure 5.

3. After finishing project

Open width washing-predetermination-dyeing-post-setting-cloth inspection

4. Test results

According to the standard AATCC 195 "Liquid Moisture Management Properties of TextileFabric", the test results can be obtained:

Embodiment 2

In this embodiment, three bars are used for weaving, namely, bars GB1, GB2, and GB3, wherein GB1 and GB2 are respectively woven with different types of non-elastic yarns, and GB3 is woven with elastic yarns.

The design is based on the premise that the GB1 extension line is greater than the GB2 extension line. Compared with the first embodiment, the structure of the coil opening and closing type is changed. The specific parameters are as follows:

1. The yarn warping equipment and process conditions used in warp knitting are the same as those in Example 1.

2. Weaving

Weaving machine model: Karl·Mayer HKS4-1 EL or other warp knitting machines that meet the requirements.

Machine number range: E14-E40

The way of threading is full.

Use yarn:

GB1: PES 30D/12f SD FDY Yarn number: 0-1/5-4//, as shown in Figure 6.

GB2: PES 40D/72f SD DTY Number of underlay: 1-0/1-2//, as shown in Figure 4.

GB3: PU 40D, yarn number: 1-2/1-0//, as shown in Figure 5.

3. After finishing project

Open width washing-predetermination-dyeing-post-setting-cloth inspection.

Embodiment 3

In this embodiment, three bars are used for weaving, namely, bars GB1, GB2, and GB3, wherein GB1 and GB2 are respectively woven with different types of non-elastic yarns, and GB3 is woven with elastic yarns.

The design is based on the premise that the GB1 extension line is greater than the GB2 extension line. The specific parameters are as follows:

1. The yarn warping equipment and process conditions used in warp knitting are the same as those in Example 1.

2. Weaving

Weaving machine model: Karl·Mayer HKS4-1 EL or other warp knitting machines that meet the requirements.

Machine number range: E14-E40

The way of wearing yarn is full wear.

Use yarn:

GB1: PES 30D/12f SD FDY, underlay number: 1-0/3-4/2-1/3-4//, as shown in Figure 7.

GB2: PES 40D/72f SD DTY, number of underlays: 1-0/1-2//, as shown in Figure 4.

GB3: PU 40D, yarn number: 1-2/1-0//, as shown in Figure 5.

3. After finishing project

Open width washing - scheduled - dyeing - post-setting - cloth inspection.

Embodiment 4

In this embodiment, four bars are used for knitting, namely, bars GB1, GB2, GB3, and GB4, wherein GB1 and GB2 are woven with the same non-elastic yarn, GB3 is woven with another type of non-elastic yarn, and GB3 is woven with Braided with stretchy yarn.

This example is developed on the premise that the GB2 extension line is greater than the GB3 extension line, and the GB1 woven pattern structure. The specific parameters are as follows:

1. The yarn warping equipment and process conditions used in warp knitting are the same as those in Example 1.

2. Weaving

Weaving machine model: Karl·Mayer HKS4-1 EL or other warp knitting machines that meet the requirements.

Machine number range: E14-E40

Use yarn:

GB1: PES 30D/12f SD FDY, 1 wear 6 empty, yarn number: (1-0/2-3)*2/(1-0/1-2)*6, as shown in Figure 8.

GB2: PES 30D/12f SD FDY, fully worn, number of pads: 1-0/3-4//, as shown in Figure 3.

GB3: PES 40D/72f SD DTY, fully worn, number of padding: 1-0/1-2//, as shown in Figure 4.

GB4: PU 40D, fully worn, yarn number: 1-2/1-0//, as shown in Figure 5.

3. After finishing project

Open width washing - scheduled - dyeing - post-setting - cloth inspection.

It should be noted that the above are only the 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 understand the foregoing implementations. The technical solutions described in the examples are modified, or some technical features thereof are equivalently replaced, but any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection of the present invention. within the range.

Claims (8)

1. A warp knitted single-layer fabric with differential water transmission, comprising a fabric body, characterized in that the fabric body adopts at least one non-elastic yarn and at least one elastic yarn to be combed through three or more Bar knitting forms micro-diffusion layer, diffusion permeable layer and diffusion evaporation layer in turn according to the direction of the bottom of the fabric body facing the surface of the fabric body. The layer is a circle-column layer, the micro-diffusion layer and the diffusion-permeable layer are both extension line layers containing several extension lines, and the diffusion-permeation layer is respectively connected with the micro-diffusion layer and the diffusion-evaporation layer. 2 . The warp knitted single-layer fabric with differential water transfer according to claim 1 , wherein the extension line in the micro-diffusion layer passes through the diffusion permeable layer and extends to the diffusion evaporation layer to connect with the diffusion evaporation layer. 3 . , the extension line in the micro-diffusion layer has several contact points with the extension line in the diffusion-permeable layer, and the length of the extension line in the micro-diffusion layer is greater than the length of the extension line in the diffusion-permeable layer, and the extension line in the diffusion-permeable layer Connect with the diffusion evaporation layer. 3. The warp-knitted single-layer fabric with differential water transfer according to claim 2, wherein the micro-diffusion layer, the diffusion permeable layer and the diffusion evaporation layer are warp oblique, warp pile, warp and warp woven in the same direction. Flat or braided weave structure, and the micro-diffusion layer, diffusion permeable layer and diffusion evaporation layer can be the same weave structure or different weave structures at the same time. 4 . The warp knitted single-layer fabric with differential water transfer according to claim 3 , wherein the extension line of the micro-diffusion layer is one to six stitches longer than the extension line of the diffusion permeable layer. 5 . 5. The warp knitted single-layer fabric with differential water transfer according to claim 4, wherein the micro-diffusion layer, the diffusion permeable layer and the diffusion evaporation layer are made of at least one non-elastic yarn through at least two The inelastic layer is formed by weaving the bars, and the fabric body is provided with an elastic layer woven by elastic yarns through at least one bar, and the weaving structure of each bar is looped. 6 . The warp knitted single-layer fabric with differential water transfer according to claim 5 , wherein the micro-diffusion layer, the diffusion permeable layer and the diffusion evaporation layer adopt the same non-elastic yarn or different non-elastic yarns. 7 . The yarn is formed by weaving. When the same non-elastic yarn is used, the contact angle of the non-elastic yarn is θ<80° and DPF<2.0; when different types of non-elastic yarn are used, there is at least one non-elastic yarn in contact Angle θ<80°, DPF<2.0. 7 . The warp knitted single-layer fabric with differential water transfer according to claim 5 , wherein the non-elastic yarns are filaments or staple fibers. 8 . 8 . The warp knitted single-layer fabric with differential water transfer according to claim 6 , wherein the fabric body is an open or closed structure. 9 .

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