High-elasticity breathable and moisture-conducting warp-knitted shaping fabric and production process thereof

Abstract

The application discloses a high-elastic breathable moisture-conducting warp-knitted shaping fabric and a production process, and belongs to the field of textiles. The fabric comprises a front surface, a back surface and an intermediate layer. The front surface and the back surface of the fabric are formed by weaving hydrophobic yarns in a change loop structure. The intermediate layer is formed by weaving hydrophilic yarns in a change weft insertion structure. The front surface and the back surface of the fabric have small mesh structures. The hydrophobic yarns on the back surface of the fabric and the hydrophilic yarns in the intermediate layer form a moisture absorption gradient, so that the fabric has a moisture-conducting function, which is beneficial to the transfer of sweat from the skin to the fabric. In addition, the front surface of the fabric also has a mesh structure, which is beneficial to the evaporation of liquid in the fabric to the air, so that the fabric has good moisture permeability.

Description

TECHNICAL FIELD

[0001] The application relates to a high-elasticity, breathable and moisture-conducting warp-knitted shaping fabric and a production process, and belongs to the field of textiles. BACKGROUND

[0002] With the improvement of living standards, more and more people begin to pay attention to physical health and body management, especially women, and the demand for body shaping clothing with shaping effect is increasing. Such shaping fabric requires good elasticity, breathability, moisture permeability, wearing comfort and the like. At present, the most commonly used on the market is double-sided weft-knitted fabric, and the fabric is mostly plain, rib or pearl ground and the like simple structure, and the raw material is mostly spandex and polyester or nylon. Although the fabric has good elasticity, the thickness is relatively large, resulting in poor breathability and moisture permeability of the fabric, and the weft-knitted fabric is generally easy to scatter and is not conducive to cutting into clothes.

[0003] Therefore, it is necessary to design a warp-knitted shaping fabric with good elasticity, breathability, moisture conductivity and wearing comfort. SUMMARY

[0004]

Technical problem

[0005] The double-sided weft-knitted shaping fabric on the market has the defects of thick fabric, poor breathability and moisture permeability and easy scattering.

[0006]

Technical scheme

[0007] In order to solve the above problems, the application provides a high-elasticity, breathable and moisture-conducting warp-knitted shaping fabric and a production process, specifically, GB1 is knitted by changing the loop structure with hydrophobic yarn, the loops and the extension lines of which are respectively on the surface of the front and back of the fabric; GB2 is knitted by changing the weft insertion structure with hydrophilic yarn to form the hydrophilic middle layer of the fabric; and GB3 is knitted by changing the weft insertion structure with thick spandex to stretch and deform the yarn structure of GB1. The thick spandex and the yarn structure make the fabric have good elasticity in the warp and weft directions; the high elasticity of the thick spandex and the weft insertion structure make the extension lines of the yarn knitted by changing the loop structure be stretched, so that the front and back of the fabric form small mesh structures, the breathability of the fabric is improved, the extension lines on the back of the fabric are straightened and arranged in the horizontal direction, the hand feeling is smooth and comfortable, and the fabric is suitable for being used as a skin-facing surface; the hydrophobic yarn on the back of the fabric and the hydrophilic yarn in the middle layer of the fabric form a moisture absorption gradient, so that the fabric has a moisture conductivity function, which is beneficial to the transfer of sweat from the skin to the fabric, and the front of the fabric also has a mesh structure, which is beneficial to the evaporation of liquid in the fabric to the air, so that the fabric has good moisture permeability.

[0008] The first object of the present application is to provide a breathable and moisture-conducting warp-knitted fabric, which comprises a front surface, a back surface and an intermediate layer, the front and back surfaces of the fabric are formed by weaving hydrophobic yarns in a change loop structure, and the intermediate layer is formed by weaving hydrophilic yarns in a change weft structure; the front and back surfaces of the fabric have a small mesh structure. The hydrophobic yarns on the back surface of the fabric and the hydrophilic yarns in the intermediate layer form a moisture absorption gradient, so that the fabric has a moisture-conducting function, which is conducive to the transfer of sweat from the skin to the fabric, and the front surface of the fabric also has a mesh structure, which is conducive to the evaporation of liquid in the fabric to the air, so that the fabric has good moisture permeability.

[0009] In an embodiment of the present application, the hydrophobic yarns include hydrophobic polypropylene, polyester or nylon filaments.

[0010] In an embodiment of the present application, the hydrophilic yarns include hydrophilic wool, cotton or viscose yarns.

[0011] The second object of the present application is to provide a method for preparing a high-elasticity, breathable and moisture-conducting warp-knitted fabric, which is knitted on a warp-knitting machine using three guide bars, namely a first guide bar GB1, a second guide bar GB2 and a third guide bar GB3. The specific knitting process is as follows: GB1 is used to weave the hydrophobic yarns in a change loop structure, and the loops and the extension lines thereof are respectively on the most surface of the front and back surfaces of the fabric; GB2 is used to weave the hydrophilic yarns in a change weft structure to form the hydrophilic intermediate layer of the fabric; and GB3 is used to weave the coarse-denier spandex in a change weft structure to stretch and deform the yarn structure of GB1. The coarse-denier spandex and the yarn structure make the fabric have good elasticity in the warp and weft directions; the high elasticity of the coarse-denier spandex and the change weft structure make the extension lines of the yarns knitted in the change loop structure be stretched, so that the front and back surfaces of the fabric form a small mesh structure, which improves the air permeability of the fabric, and the extension lines on the back surface of the fabric are stretched horizontally to be straight and neat, so that the fabric has a smooth and comfortable hand feeling and is suitable for being used as a skin-facing surface.

[0012] In an embodiment of the present application, the threading mode of each guide bar is as follows:

[0013] GB1: 1-0 / 0-1 / 1-0 / 1-2 / 2-1 / 1-2 / / , full threading;

[0014] GB2: 0-0 / 1-1 / 2-2 / 3-3 / 2-2 / 1-1 / / , full threading;

[0015] GB3: 0-0 / 2-2 / 1-1 / 3-3 / 1-1 / 2-2 / / , full threading.

[0016] In an embodiment of the present application, the production method of the high-elasticity, breathable and moisture-conducting warp-knitted shaping fabric specifically comprises the following steps:

[0017] 1) Material selection: Select hydrophobic yarn, hydrophilic yarn, and spandex as raw materials;

[0018] 2) Warping: The selected raw materials are warped on a warping machine according to the requirements of width, yarn density and threading, and the number of heads is determined.

[0019] 3) Weaving: The RSE4-1 type Raschel warp knitting machine is used for weaving. The first three guide bars of the machine are used for weaving. GB1 uses hydrophobic yarn to weave a loop structure, GB2 uses hydrophilic yarn to weave a weft-inserted structure, and GB3 uses coarse denier spandex to weave a special weft-inserted structure.

[0020] 4) Post-processing, inspection, and packaging.

[0021] The selection and arrangement of the various guide bar structures and yarn threading methods during warping and weaving are as follows:

[0022] GB1:1-0 / 0-1 / 1-0 / 1-2 / 2-1 / 1-2 / / , Full penetration;

[0023] GB2:0-0 / 1-1 / 2-2 / 3-3 / 2-2 / 1-1 / / , full penetration;

[0024] GB3:0-0 / 2-2 / 1-1 / 3-3 / 1-1 / 2-2 / / , Full penetration;

[0025] In one embodiment of the present invention, the yarn and comb are configured as follows: GB1 is made of hydrophobic polypropylene, polyester or nylon filament, GB2 is made of hydrophilic wool, cotton or viscose yarn, and GB3 is made of coarse denier spandex.

[0026] In one embodiment of the present invention, the high elasticity of coarse denier spandex straightens the spandex, and its special weft-insertion structure causes the filament extension lines that are woven into loops to be stretched laterally, so that small mesh structures are formed on both the front and back of the fabric, and the reverse side of the fabric is smooth.

[0027] In one embodiment of the present invention, the specific yarn specifications of the polypropylene, polyester or nylon filaments used are: 30D-100D / 24-144f semi-dull nylon DTY, 30D-100D / 24-144f semi-dull polyester DTY, and 30D-100D / 24-144f semi-dull polypropylene DTY.

[0028] In one embodiment of the present invention, the specific yarn specifications of the wool, cotton or viscose yarn used are: 50-80Nm wool yarn, 30S-60S cotton yarn, and 30S-60S viscose yarn.

[0029] In one embodiment of the present invention, the coarse denier spandex refers to spandex with a denier of 140-280D.

[0030] In one embodiment of the present invention, the finishing process includes dyeing and setting; wherein the dyeing is conventional dyeing; when the raw material is polyester, the setting temperature is 170-190℃; when the raw material is nylon, the setting temperature is 120-140℃.

[0031] The third objective of this invention is to obtain a highly elastic, breathable, and moisture-wicking warp-knitted fabric prepared by the method described in this invention.

[0032] In one embodiment of the present invention, the weight of the highly elastic, breathable, and moisture-wicking warp-knitted shaping fabric is 150-250 g / m². 2 .

[0033] In one embodiment of the present invention, the reverse side of the highly elastic, breathable, and moisture-wicking warp-knitted shaping fabric has a smooth and comfortable feel, making it suitable as a skin-contact surface.

[0034] The fourth objective of this invention is the application of the high-elasticity, breathable, and moisture-wicking warp-knitted fabric described herein in the preparation of functional textiles.

[0035] The beneficial effects of this invention are:

[0036] (1) The high elasticity, breathable and moisture-wicking warp-knitted shaping fabric of the present invention utilizes the high elasticity of coarse denier spandex and the yarn structure to make the fabric highly elastic in both the warp and weft directions. The warp elongation is greater than 130% and the weft elongation is greater than 100%.

[0037] (2) The high elasticity, breathable and moisture-wicking warp-knitted shaping fabric of the present invention utilizes the high elasticity of coarse denier spandex with special weft-insertion structure and the yarn with knitted loop structure to form a small mesh structure on both sides of the fabric, so that the fabric has good breathability, with a breathability greater than 800mm / s. Moreover, the reverse side of the fabric becomes neat because the long filament extension lines are straightened laterally, making the reverse side of the fabric smooth and comfortable to the touch, suitable as a skin-friendly side.

[0038] (3) The back comb of the high-elasticity, breathable, and moisture-wicking warp-knitted shaping fabric of the present invention adopts a hydrophilic yarn weaving weft structure to form a hydrophilic middle layer of the fabric. This creates a moisture absorption gradient between the middle layer of the fabric and the reverse side formed by the chemical fiber filaments, which facilitates the absorption of sweat from the skin surface into the middle layer of the fabric. Furthermore, the front side of the fabric also has a small mesh structure, which facilitates the evaporation of liquid from the fabric into the air. The fabric's moisture permeability is greater than 5000 g / (m²). 2 •24h). The greater the difference in hydrophilicity of the yarns, the better the moisture permeability of the fabric. For example, the moisture permeability of fabrics made of polypropylene and wool is 2.5% higher than that of fabrics made of nylon and cotton yarns.

[0039] (4) The high elasticity, breathable and moisture-wicking warp-knitted shaping fabric of the present invention obtains the required performance through the combination of structure and yarn. The yarns are all common fiber materials, and the production method is simple and efficient. Attached Figure Description

[0040] Figure 1 This diagram illustrates the movement of the padding yarns on each comb bar of a high-elasticity, breathable, and moisture-wicking warp-knitted shaping fabric produced using an RSE4-1 Raschel warp knitting machine.

[0041] Figure 2 This is a front view of a high-elasticity, breathable, moisture-wicking warp-knitted shaping fabric.

[0042] Figure 3 This is a picture of the reverse side of a highly elastic, breathable, moisture-wicking warp-knitted shaping fabric. Detailed Implementation

[0043] The preferred embodiments of the present invention are described below. It should be understood that the embodiments are for better explanation of the present invention and are not intended to limit the present invention.

[0044] Test method:

[0045] 1. Test method for tensile breaking properties of fabrics:

[0046] Instrument: YG(B)026ET electronic fabric strength tester

[0047] Experimental steps:

[0048] ① Prepare the test samples. The sample size is 30-33cm in length and 5cm in width. Take 5 samples each in the warp and weft directions.

[0049] ② Set the stretching speed to 100 mm / min and the clamping distance to 200 mm on the instrument.

[0050] ③ Apply a pre-tension of 2N when clamping the sample, and start the test after clamping the sample.

[0051] ④ Record the data and calculate the average value.

[0052] 2. Air permeability test method:

[0053] Instrument: YG461E-Ⅲ type fully automatic air permeability meter

[0054] Experimental steps:

[0055] ① Prepare the test sample, because the test area is 20 cm². 2 Furthermore, at least 10 tests are required at different locations, so the required sample area cannot be too small.

[0056] ② Clamp the sample on the sample platform, avoiding the edges and folds of the fabric at the test points. Apply sufficient tension when clamping the sample to ensure it is flat without deforming. To prevent air leakage, place a gasket on the low-pressure side of the sample.

[0057] ③ Start the testing instrument to allow air to pass through the sample, adjust the flow rate so that the pressure drop gradually approaches the specified value, and record the airflow rate after 1 minute.

[0058] ④ Under the same conditions, repeat the measurement at different locations of the same sample at least 10 times.

[0059] ⑤ Record the data and calculate the average value.

[0060] 3. Moisture permeability test method:

[0061] Instrument: YG601H-I1 computer-controlled fabric moisture permeability meter

[0062] Experimental steps:

[0063] ① Before turning on the instrument, please check if there is water. Observe the water level indicator on the right side of the instrument. When using the instrument, ensure that the water level is 4-5 cm above the low water level line to prevent water shortage from affecting the test. (Generally, one water fill can last for more than 24 hours). The instrument will automatically shut down if it is short of water.

[0064] ② Set the temperature of the osmosis chamber to 34℃ and the relative humidity to 90%, with a temperature ±2℃ and relative humidity ±2%RH.

[0065] ③ Place the 34ml moisture permeation cup 1cm away from the test fabric, place the test fabric on the moisture permeation cup with the test side facing up, and put the moisture permeation cup assembly into the moisture permeation chamber of the moisture permeation instrument. After 1 hour, cover the cup and weigh each one.

[0066] ④ Remove the cup lid and quickly place the permeation cup assembly into the permeation chamber of the permeation apparatus for a one-hour test. After the time is up, remove the assembly and weigh each piece individually.

[0067] ⑤ Calculation of test results: Moisture permeability per square meter per day (24 hours) (grams) = 24 * difference between two weighings (grams) / test area of ​​the sample (square meters).

[0068] Example 1:

[0069] A highly elastic, breathable, and moisture-wicking warp-knitted shaping fabric is composed of the following percentages by weight: 22.8% polypropylene yarn, 66.0% wool yarn, and 11.2% spandex.

[0070] The specific process of each step in the fabric preparation is as follows: including material selection, selection and matching of the comb structure, warping, weaving, and finishing.

[0071] 1) Material selection: 30D / 24f semi-dull polypropylene DTY, 50Nm wool yarn, and 210D spandex are selected.

[0072] 2) Warping: Weave one piece of fabric with a width of 150cm and a warp density of 16.0wpc. The warp threads of GB1, GB2, and GB3 are full, and the number of warp heads is calculated as follows: GB1, GB2, and GB3 are all 6×400.

[0073] 3) Weaving: Weaving is carried out using a single-needle bed Raschel warp knitting machine.

[0074] Model: RSE4-1.

[0075] Machine number: E32.

[0076] Width: 130 inches.

[0077] Warp knitting structure and yarn threading method:

[0078] GB1:1-0 / 0-1 / 1-0 / 1-2 / 2-1 / 1-2 / / , Full penetration;

[0079] GB2:0-0 / 1-1 / 2-2 / 3-3 / 2-2 / 1-1 / / , full penetration;

[0080] GB3:0-0 / 2-2 / 1-1 / 3-3 / 1-1 / 2-2 / / , Full penetration;

[0081] raw material:

[0082] GB1: 30D / 24f semi-dull polypropylene DTY.

[0083] GB2: 50Nm wool yarn.

[0084] GB3: 210D spandex.

[0085] Input the information such as the yarn padding number, warp feed amount, and draft density into the computer display screen of the control cabinet, save it, load the machine file, and then start the machine.

[0086] 4) Post-processing, inspection, and packaging.

[0087] The specific parameters of the process in this embodiment are shown in Table 1.

[0088] Table 1

[0089]

[0090] Example 2:

[0091] A highly elastic, breathable, and moisture-wicking warp-knitted shaping fabric is composed of the following percentages by weight: 22.7% nylon yarn, 66.1% wool yarn, and 11.2% spandex.

[0092] The specific process of each step in the fabric preparation is as follows: including material selection, selection and matching of the comb structure, warping, weaving, and finishing.

[0093] 1) Material selection: 30D / 24f semi-dull nylon DTY, 50Nm wool yarn, and 210D spandex are selected.

[0094] 2) Warping: Weave one piece of fabric with a width of 150cm and a warp density of 16.0wpc. The warp threads of GB1, GB2, and GB3 are full, and the number of warp heads is calculated as follows: GB1, GB2, and GB3 are all 6×400.

[0095] 3) Weaving: Weaving is carried out using a single-needle bed Raschel warp knitting machine.

[0096] Model: RSE4-1.

[0097] Machine number: E32.

[0098] Width: 130 inches.

[0099] Warp knitting structure and yarn threading method:

[0100] GB1:1-0 / 0-1 / 1-0 / 1-2 / 2-1 / 1-2 / / , Full penetration;

[0101] GB2:0-0 / 1-1 / 2-2 / 3-3 / 2-2 / 1-1 / / , full penetration;

[0102] GB3:0-0 / 2-2 / 1-1 / 3-3 / 1-1 / 2-2 / / , Full penetration;

[0103] raw material:

[0104] GB1: 30D / 24f semi-dull nylon DTY.

[0105] GB2: 50Nm wool yarn.

[0106] GB3: 210D spandex.

[0107] Input the information such as the yarn padding number, warp feed amount, and draft density into the computer display screen of the control cabinet, save it, load the machine file, and then start the machine.

[0108] 4) Post-processing, inspection, and packaging.

[0109] The specific parameters of the process in this embodiment are shown in Table 2.

[0110] Table 2

[0111]

[0112] Example 3:

[0113] A highly elastic, breathable, and moisture-wicking warp-knitted shaping fabric is composed of the following percentages by weight: 23.1% nylon yarn, 65.6% cotton yarn, and 11.3% spandex.

[0114] The specific process of each step in the fabric preparation is as follows: including material selection, selection and matching of the comb structure, warping, weaving, and finishing.

[0115] 1) Material selection: 30D / 24f semi-dull nylon DTY, 30S (approximately 177D) cotton yarn, and 210D spandex are selected.

[0116] 2) Warping: Weave one piece of fabric with a width of 150cm and a warp density of 16.0wpc. The warp threads of GB1, GB2, and GB3 are full, and the number of warp heads is calculated as follows: GB1, GB2, and GB3 are all 6×400.

[0117] 3) Weaving: Weaving is carried out using a single-needle bed Raschel warp knitting machine.

[0118] Model: RSE4-1.

[0119] Machine number: E32.

[0120] Width: 130 inches.

[0121] Warp knitting structure and yarn threading method:

[0122] GB1:1-0 / 0-1 / 1-0 / 1-2 / 2-1 / 1-2 / / , Full penetration;

[0123] GB2:0-0 / 1-1 / 2-2 / 3-3 / 2-2 / 1-1 / / , full penetration;

[0124] GB3:0-0 / 2-2 / 1-1 / 3-3 / 1-1 / 2-2 / / , Full penetration;

[0125] raw material:

[0126] GB1: 30D / 24f semi-dull nylon DTY.

[0127] GB2: 30S cotton yarn.

[0128] GB3: 210D spandex.

[0129] Input the information such as the yarn padding number, warp feed amount, and draft density into the computer display screen of the control cabinet, save it, load the machine file, and then start the machine.

[0130] 4) Post-processing, inspection, and packaging.

[0131] The specific process parameters for this embodiment are shown in Table 3.

[0132] Table 3

[0133]

[0134]

[0135] Comparative Example 1:

[0136] Replace the 30D / 24f semi-dull polypropylene DTY and 50Nm wool yarn in Example 1 with 30D / 24f semi-dull polyester DTY and 30S polyester yarn, and keep other conditions and parameters the same as in Example 1.

[0137] The specific method is as follows:

[0138] A highly elastic, breathable, warp-knitted shaping fabric is composed of the following percentages by weight: 23.4% polyester filament, 65.2% polyester yarn, and 11.4% spandex.

[0139] The specific process of each step in the fabric preparation is as follows: including material selection, selection and matching of the comb structure, warping, weaving, and finishing.

[0140] 1) Material selection: 30D / 24f semi-dull polyester DTY, 30S polyester yarn, and 210D spandex are selected.

[0141] 2) Warping: Weave one piece of fabric with a width of 150cm and a warp density of 16.0wpc. The warp threads of GB1, GB2, and GB3 are full, and the number of warp heads is calculated as follows: GB1, GB2, and GB3 are all 6×400.

[0142] 3) Weaving: Weaving is carried out using a single-needle bed Raschel warp knitting machine.

[0143] Model: RSE4-1.

[0144] Machine number: E32.

[0145] Width: 130 inches.

[0146] Warp knitting structure and yarn threading method:

[0147] GB1:1-0 / 0-1 / 1-0 / 1-2 / 2-1 / 1-2 / / , Full penetration;

[0148] GB2:0-0 / 1-1 / 2-2 / 3-3 / 2-2 / 1-1 / / , full penetration;

[0149] GB3:0-0 / 2-2 / 1-1 / 3-3 / 1-1 / 2-2 / / , Full penetration;

[0150] raw material:

[0151] GB1: 30D / 24f semi-dull polyester DTY.

[0152] GB2: 30S polyester yarn.

[0153] GB3: 210D spandex.

[0154] Input the information such as the yarn padding number, warp feed amount, and draft density into the computer display screen of the control cabinet, save it, load the machine file, and then start the machine.

[0155] 4) Post-processing, inspection, and packaging.

[0156] The specific parameters of the process in this embodiment are shown in Table 4.

[0157] Table 4

[0158]

[0159] Comparative Example 2:

[0160] The 210D coarse denier spandex in Example 1 was replaced with 30D fine denier spandex, and other conditions and parameters were the same as in Example 1.

[0161] The specific method is as follows:

[0162] A highly elastic, breathable, warp-knitted shaping fabric is composed of the following percentages by weight: 26.8% polypropylene yarn, 71.3% wool yarn, and 1.9% spandex.

[0163] The specific process of each step in the fabric preparation is as follows: including material selection, selection and matching of the comb structure, warping, weaving, and finishing.

[0164] 1) Material selection: 30D / 24f semi-dull polyester DTY, 30S polyester yarn, and 30D spandex are selected.

[0165] 2) Warping: Weave one piece of fabric with a width of 150cm and a warp density of 16.0wpc. The warp threads of GB1, GB2, and GB3 are full, and the number of warp heads is calculated as follows: GB1, GB2, and GB3 are all 6×400.

[0166] 3) Weaving: Weaving is carried out using a single-needle bed Raschel warp knitting machine.

[0167] Model: RSE4-1.

[0168] Machine number: E32.

[0169] Width: 130 inches.

[0170] Warp knitting structure and yarn threading method:

[0171] GB1:1-0 / 0-1 / 1-0 / 1-2 / 2-1 / 1-2 / / , Full penetration;

[0172] GB2:0-0 / 1-1 / 2-2 / 3-3 / 2-2 / 1-1 / / , full penetration;

[0173] GB3:0-0 / 2-2 / 1-1 / 3-3 / 1-1 / 2-2 / / , Full penetration;

[0174] raw material:

[0175] GB1: 30D / 24f semi-dull polypropylene DTY.

[0176] GB2: 50Nm wool yarn.

[0177] GB3: 30D spandex.

[0178] Input the information such as the yarn padding number, warp feed amount, and draft density into the computer display screen of the control cabinet, save it, load the machine file, and then start the machine.

[0179] 4) Post-processing, inspection, and packaging.

[0180] The specific parameters of the process in this embodiment are shown in Table 4.

[0181] Table 4

[0182]

[0183]

[0184] Comparative Example 3:

[0185] The warp knitting structure in Example 1 was changed to a common warp knitting elastic fabric structure, namely GB1 is a two-needle warp plain weave, GB2 is a two-needle weft-inserted weave, and GB3 is a one-needle weft-inserted weave. Other conditions and parameters are the same as in Example 1.

[0186] The specific method is as follows:

[0187] A highly elastic, breathable, warp-knitted shaping fabric is composed of the following percentages by weight: 27.8% polypropylene yarn, 59.0% wool yarn, and 13.2% spandex.

[0188] The specific process of each step in the fabric preparation is as follows: including material selection, selection and matching of the comb structure, warping, weaving, and finishing.

[0189] 1) Material selection: 30D / 24f semi-dull polypropylene DTY, 50Nm wool yarn, and 210D spandex are selected.

[0190] 2) Warping: Weave one piece of fabric with a width of 150cm and a warp density of 16.0wpc. The warp threads of GB1, GB2, and GB3 are full, and the number of warp heads is calculated as follows: GB1, GB2, and GB3 are all 6×400.

[0191] 3) Weaving: Weaving is carried out using a single-needle bed Raschel warp knitting machine.

[0192] Model: RSE4-1.

[0193] Machine number: E32.

[0194] Width: 130 inches.

[0195] Warp knitting structure and yarn threading method:

[0196] GB1:1-0 / 1-2 / / , Full penetration;

[0197] GB2:0-0 / 2-2 / / , Full penetration;

[0198] GB3:1-1 / 0-0 / / , full penetration;

[0199] raw material:

[0200] GB1: 30D / 24f semi-dull polypropylene DTY.

[0201] GB2: 50Nm wool yarn.

[0202] GB3: 210D spandex.

[0203] Input the information such as the yarn padding number, warp feed amount, and draft density into the computer display screen of the control cabinet, save it, load the machine file, and then start the machine.

[0204] 4) Post-processing, inspection, and packaging.

[0205] The specific parameters of the process in this embodiment are shown in Table 4.

[0206] Table 4

[0207]

[0208] The performance of Example 1, Example 2, Example 3, Comparative Example 1, Comparative Example 2, Comparative Example 3, and other commercially available double-sided weft-knitted shaping fabrics were measured respectively, and the test results are shown in Table 5.

[0209] Table 5. Fabric Performance Test Results

[0210]

[0211]

[0212] As can be seen from Table 5:

[0213] Examples 1, 2, and 3 all exhibit good elasticity, breathability, and moisture permeability. Due to differences in yarn composition, the moisture-wicking capacity of the fabric varies, resulting in slight differences in moisture permeability. Example 1 demonstrates the best moisture permeability. Comparative Example 1, compared to the three examples, also exhibits good elasticity and breathability due to its identical fabric structure. However, GB1 and GB2 use polyester yarn, which lacks moisture-wicking properties, resulting in relatively poor moisture permeability. Comparative Example 2, compared to the examples, uses finer spandex, leading to decreased fabric mechanical properties and reduced thickness. The insufficient elasticity of spandex prevents the formation of a small mesh structure on both sides of the fabric, resulting in poorer breathability and moisture permeability. Furthermore, the extension lines on the reverse side of the fabric are not laterally stretched, making the reverse side less smooth and comfortable compared to the examples. Compared to the examples, Comparative Example 3 uses a conventional warp-knitted and weft-inserted fabric weave. This results in decreased elongation in both warp and weft directions, preventing the formation of a small mesh structure on both sides of the fabric. Consequently, the fabric's moisture absorption and breathability are reduced. Furthermore, the stretch lines on the reverse side of the fabric, like conventional warp-knitted fabrics, are alternately sloping in a figure-eight pattern, making the reverse side less smooth and comfortable to the touch compared to the examples. The commercially available fabric is thicker than the examples and also has relatively poorer breathability and moisture permeability.

[0214] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A method for preparing a highly elastic, breathable, and moisture-wicking warp-knitted fabric, characterized in that, The fabric is woven on a Raschel warp knitting machine using three guide bars: GB1, GB2, and GB3. The specific weaving process is as follows: GB1 uses hydrophobic yarn to weave a loop structure, with the loops and extension threads on the outermost surfaces of the front and back sides of the fabric, respectively; GB2 uses hydrophilic yarn to weave a weft-insertion structure, forming the hydrophilic middle layer of the fabric; GB3 uses coarse denier spandex with a thickness of 140-280D to weave a weft-insertion structure, causing the yarn structure of GB1 to be stretched and deformed. The fabric comprises a front, a back, and a middle layer. The front of the fabric is a varied loop weave structure made of hydrophobic yarns, and the middle layer is a varied weft weave structure made of hydrophilic yarns. The front and back of the fabric have small mesh structures. The hydrophobic yarns on the back and the hydrophilic yarns in the middle layer form a moisture absorption gradient, giving the fabric a moisture-wicking function and facilitating the transfer of sweat from the skin to the fabric. The front of the fabric also has a mesh structure, which facilitates the evaporation of liquid from the fabric into the air, giving the fabric good moisture permeability.

2. The method according to claim 1, characterized in that, The threading method for each comb bar is as follows: GB1: 1- 0 / 0- 1 / 1- 0 / 1- 2 / 2- 1 / 1- 2 / / , full penetration; GB2: 0- 0 / 1- 1 / 2- 2 / 3- 3 / 2- 2 / 1- 1 / / , full penetration; GB3: 0- 0 / 2- 2 / 1- 1 / 3- 3 / 1- 1 / 2- 2 / / , full wear.

3. The method according to claim 1 or 2, characterized in that, The yarn and comb are configured as follows: GB1 uses hydrophobic polypropylene, polyester or nylon filaments, GB2 uses hydrophilic wool, cotton or viscose yarns, and GB3 uses coarse denier spandex; the coarse denier spandex refers to spandex with a thickness of 140-280D.

4. The method according to claim 1 or 2, characterized in that, The production method of the high-elasticity, breathable, and moisture-wicking warp-knitted fabric specifically includes the following steps: 1) Material selection: Select hydrophobic yarn, hydrophilic yarn, and spandex as raw materials; 2) Warping: The selected raw materials are warped on a warping machine according to the requirements of width, yarn density, and yarn threading; 3) Weaving: Raschel warp knitting machine is used, and the first three guide bars of the machine are used for weaving. GB1 uses hydrophobic yarn to weave a loop structure, GB2 uses hydrophilic yarn to weave a weft-inserting structure, and GB3 uses coarse denier spandex to weave a weft-inserting structure. 4) Post-processing, inspection, and packaging.

5. The high-elasticity, breathable, and moisture-wicking warp-knitted fabric prepared according to claim 1 or 2.

6. The fabric according to claim 5, characterized in that, The weight of the high-elasticity, breathable, and moisture-wicking warp-knitted fabric is 150-250 g / m². 2 .

7. The application of the fabric according to claim 5 in the field of textile manufacturing.

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