Novel jacquard elastic fabric and weaving method thereof

Abstract

The invention discloses a novel jacquard elastic fabric. Each circulation unit weave comprises ten warp yarns and eight weft yarns; the weft yarns comprise chinlon spandex wrap yarns and chinlon elastic yarns, and the quantity ratio of the chinlon spandex wrap yarns to the chinlon elastic yarns is 3: 1; the up-and-down state of the interweaving of the ten warp yarns and the eight weft yarns is as follows in sequence: floating, sinking, floating, sinking, floating, sinking, floating, sinking, floating and sinking; sinking, floating, sinking, floating, sinking, floating, sinking, floating, sinking and floating; floating, sinking, floating, sinking, floating, sinking, floating, sinking, floating and sinking; floating, floating, floating, sinking, floating, floating, floating, floating and sinking; sinking, floating, sinking, floating, sinking, floating, sinking, floating, sinking and floating; floating, sinking, floating, sinking, floating, sinking, floating, sinking, floating and sinking; sinking, floating, sinking, floating, sinking, floating, sinking, floating, sinking and floating; the fabric has the advantages of being novel in appearance style, comfortable in hand feeling and excellent in elasticity, and the fabric can float, sink, float, float, sink, float and float. The invention correspondingly discloses a weaving method of the novel jacquard elastic fabric.

Description

Technical Field

[0001] The invention belongs to the technical field of woven fabrics, and in particular relates to a novel jacquard elastic fabric and a weaving method thereof. Background Art

[0002] Woven fabrics are made of two or more mutually perpendicular yarns, interwoven at 90 degrees. The longitudinal yarns are called warp yarns, and the transverse yarns are called weft yarns. As people's demand for personalized, high-end and diversified clothing becomes increasingly strong, soft, comfortable and functional fabrics are increasingly valued.

[0003] In order to obtain a soft and comfortable feel, the fabric softening finishing methods currently used in the market include: (1) mechanical softening finishing methods, such as brushing, grinding, shearing, puffing softening, sand washing and other treatments for cotton fabrics. This method is only applicable to a small number of raw material types of fabrics. Fabrics containing easily damaged fibers such as spandex cannot be treated in this way; (2) liquid ammonia finishing, using liquid ammonia to penetrate into the crystalline structure of the fiber, accelerate the puffing of the fiber, change the internal structure and appearance of the fiber, and make the fabric soft. However, this treatment method requires special low-temperature liquid ammonia treatment equipment and is costly; (3) softener finishing. Chemical softeners have been widely used to soften fabrics and are also used as fiber lubricants to reduce the friction between fibers and improve the drape and wearability of the fabric. However, chemical methods can easily make the fiber lose its activity and reduce its affinity to the skin, resulting in a poor fabric feel.

[0004] In view of the above problems, it is necessary to develop a fabric with excellent softness. Summary of the invention

[0005] The purpose of the present invention is to provide a novel jacquard stretch fabric with novel appearance and comfortable hand feeling and a weaving method thereof.

[0006] In the first aspect, the present invention provides a novel jacquard stretch fabric, which specifically adopts the following technical solution:

[0007] A novel jacquard elastic fabric comprises a plurality of cycle unit structures woven from warp yarns and weft yarns, each cycle unit structure comprises ten warp yarns and eight weft yarns interwoven with the warp yarns; the eight weft yarns are respectively a first weft yarn, a second weft yarn, a third weft yarn, a fourth weft yarn, a fifth weft yarn, a sixth weft yarn, a seventh weft yarn and an eighth weft yarn, the warp yarn, the first weft yarn, the second weft yarn, the third weft yarn, the fifth weft yarn, the sixth weft yarn and the seventh weft yarn are all nylon-spandex coated yarns; the fourth weft yarn and the eighth weft yarn are both nylon elastic yarns;

[0008] Taking the first weft yarn as the reference, the floating and sinking states of the ten warp yarns are: floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking; taking the second weft yarn as the reference, the floating and sinking states of the ten warp yarns are: sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking; taking the third weft yarn as the reference, the floating and sinking states of the ten warp yarns are: floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking; taking the fourth weft yarn as the reference, the floating and sinking states of the ten warp yarns are: floating-floating-floating-floating-sinking-floating-floating-floating-floating-sinking ; Taking the fifth weft yarn as the reference, the floating and sinking states of the ten warp yarns are: sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating; taking the sixth weft yarn as the reference, the floating and sinking states of the ten warp yarns are: floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking; taking the seventh weft yarn as the reference, the floating and sinking states of the ten warp yarns are: sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating; taking the eighth weft yarn as the reference, the floating and sinking states of the ten warp yarns are: floating-floating-sinking-floating-floating-floating-floating-sinking-floating-floating-floating-floating-floating-floating-floating-floating-floating.

[0009] By adopting the above technical solution, the fabric with the above-mentioned variable plain weave structure obtained by weaving nylon spandex coated yarn and nylon stretch yarn as raw materials has a novel appearance style, comfortable feel and excellent elasticity. At the same time, the fourth weft yarn and the eighth weft yarn are staggered between the other six weft yarns, and the interweaving methods of the two and the ten warp yarns are also different, so that the fabric as a whole is divided into several different areas, while ensuring that the fabric as a whole has a soft and elastic effect, the fabric as a whole is not easy to deform.

[0010] Furthermore, the warp yarn, the first weft yarn, the second weft yarn, the third weft yarn, the fifth weft yarn, the sixth weft yarn and the seventh weft yarn are all N70D+40D nylon spandex covered yarns; and the fourth weft yarn and the eighth weft yarn are both 90D nylon stretch yarns.

[0011] By adopting the above technical solution, the fabric has excellent elasticity and soft feel.

[0012] Furthermore, the warp density is 106 yarns / 10 cm, and the weft density is 94 yarns / 10 cm.

[0013] Furthermore, the warp density is 156 yarns / 10 cm, and the weft density is 144 yarns / 10 cm.

[0014] Furthermore, the adjacent cycle unit tissues are staggered in radial or weft directions. The staggered distribution of the cycle unit tissues can form fabrics with different patterns to meet different needs. Specifically, the cycle unit tissues are staggered in radial or weft directions by 1 / 2, 1 / 3, 1 / 4, or 1 / 5.

[0015] Furthermore, the warp yarn and / or weft yarn are dyed yarns.

[0016] In a second aspect, the present invention provides a novel jacquard stretch fabric weaving method, which specifically adopts the following technical scheme:

[0017] The weaving method of the novel jacquard stretch fabric includes a warping process, a sizing process, a reeding process and a weaving process. In the reeding process, the reed number is 21 cm, the reed width is 220 cm, the ground weave adopts 2-inserted reeds, and the side weave adopts 3-inserted reeds. The side weave of the woven fabric is relatively tighter, and the edge is not easy to loosen.

[0018] Furthermore, in the sizing process, the sizing rate is 10±0.5%, which can ensure that the yarn has sufficient strength, and the yarn breakage problem is less likely to occur in the weaving process, which effectively reduces the defect rate of the woven fabric.

[0019] Furthermore, the sizing material used in the sizing process is prepared by reacting 68-90 parts by weight of acrylate monomers, 8-18 parts of acrylic acid monomers, 6-10 parts of olefin monomers, 5-10 parts of aliphatic saturated alcohols, 2-3 parts of reactive emulsifiers, 0.8-1.2 parts of ammonium persulfate, 0.1-0.3 parts of dodecyl mercaptan, 3-4 parts of fatty alcohol polyoxyethylene ether, 10-20 parts of modification aids, 1-2 parts of silicone defoaming agents and 450-500 parts of deionized water; the aliphatic saturated alcohol is a C16-C18 aliphatic saturated alcohol.

[0020] The slurry of the above-mentioned formula has high permeability and can quickly penetrate to make the yarn evenly sizing, thereby effectively reducing problems such as yarn breakage and flying feathers in the subsequent weaving process, and effectively reducing the fabric weaving defect rate.

[0021] Furthermore, the acrylic monomer is a mixture of acrylic acid and methacrylic acid, and the weight ratio of acrylic acid to methacrylic acid is 1:(3-15); the acrylic ester monomer is a mixture of methyl acrylate, butyl acrylate and methyl methacrylate, and the weight ratio of methyl acrylate, butyl acrylate and methyl methacrylate is 2:2:1; and the olefin monomer is styrene.

[0022] Furthermore, the modification aid is prepared by the following method: a mixture of dihydroxyethylglycine and catecholethylamine in a weight ratio of 1:3 is stirred in an aqueous solution at 50° C. and pH=8.5-9.5 for 3 hours, dried and ground, and then n-butanol is added to disperse evenly to obtain a modification aid; the amount of n-butanol added is 5 times the total weight of the dihydroxyethylglycine and catecholethylamine.

[0023] Furthermore, the specific preparation steps of the sizing material used in the sizing process are as follows:

[0024] Step 1: Add 90% of the total amount of deionized water into a reaction vessel equipped with a stirrer, a heater, a thermometer and a reflux condenser, start the stirrer to stir, add the reactive emulsifier while stirring, heat to 95° C., and keep warm;

[0025] Step 2: Add acrylic acid monomer, acrylic ester monomer, olefin monomer, aliphatic saturated alcohol and dodecyl mercaptan into a mixing container, stir evenly to obtain a mixture for later use;

[0026] Step 3, weigh ammonium persulfate and add the remaining amount of deionized water to prepare an ammonium persulfate aqueous solution, first add 1 / 2 of the ammonium persulfate aqueous solution to the reaction container in step 1, and then start to dropwise add the remaining 1 / 2 of the ammonium persulfate aqueous solution and the mixture obtained in step 2, control the dropping time to 2h, and maintain 95°C for 100min after the addition is completed;

[0027] Step 4: After the heat preservation is completed, the temperature is lowered to 65° C., and the pH of the mixture in the reaction container is adjusted to 7.0-8.0 with aqueous ammonia;

[0028] Step 5: When the mixture in the reaction container is cooled to 35° C., fatty alcohol polyoxyethylene ether, modification aid and silicone defoamer are added, and the mixture is filtered after being stirred evenly to obtain a slurry.

[0029] The present invention has the following beneficial effects:

[0030] The novel jacquard stretch fabric of the present invention or the novel jacquard stretch fabric woven by the method of the present invention has novel appearance, comfortable hand feeling and excellent elasticity, and can provide consumers with more purchasing options. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is the organization diagram of the novel jacquard stretch fabric in Example 1;

[0032] Figure 2 The (rectangular array) distribution diagram of the cyclic unit organization in Example 1;

[0033] Figure 3 It is a process flow chart of the weaving method in Example 1;

[0034] Figure 4 This is the (radial staggered 1 / 2) distribution diagram of the cyclic unit organization in Example 3.

[0035] Description of reference numerals:

[0036] W1, first weft yarn; W2, second weft yarn; W3, third weft yarn; W4, fourth weft yarn; W5, fifth weft yarn; W6, sixth weft yarn; W7, seventh weft yarn; W8, eighth weft yarn. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0038] [Example 1]

[0039] A new type of jacquard stretch fabric, such as Figure 1 and Figure 2 As shown, it includes several cyclic unit tissues woven from warp yarns and weft yarns, and each cyclic unit tissue is arranged in a rectangular array. Each cyclic unit tissue includes ten warp yarns and eight weft yarns interwoven with the warp yarns. The fabric design is as follows: the warp yarn is N70D+40D nylon spandex coated yarn; the first weft yarn W1, the second weft yarn W2, the third weft yarn W3, the fifth weft yarn W5, the sixth weft yarn W6 and the seventh weft yarn W7 in the weft yarn are all N70D+40D nylon spandex coated yarns, and the fourth weft yarn W4 and the eighth weft yarn W8 are all 90D nylon stretch yarns; the ratio of the two yarns of N70D+40D nylon spandex coated yarn and 90D nylon stretch yarn in the weft yarn is 3:1; the warp yarn density is 106 yarns / 10cm, and the weft yarn density is 94 yarns / 10cm; the fabric tissue is a variable plain weave.

[0040] Reference Figure 1 In the figure, the black squares represent warp floating points (the weaving points where the warp yarns are on top and the weft yarns are on the bottom), and the white squares represent weft floating points (the weaving points where the weft yarns are on top and the warp yarns are on the bottom). Taking the first weft yarn W1 as a reference, the floating and sinking states of the ten warp yarns are: float-sink-float-sink-float-sink-float-sink-float-sink-float-sink; taking the second weft yarn W2 as a reference, the floating and sinking states of the ten warp yarns are: sink-float-sink-float-sink-float-sink-float-sink-float-sink-float; taking the third weft yarn W3 as a reference, the floating and sinking states of the ten warp yarns are: float-sink-float-sink-float-sink-float-sink-float-sink-float-sink; taking the fourth weft yarn W4 as a reference, the floating and sinking states of the ten warp yarns are: float-float-float-float-sink-float-float-float-float-sink; Taking the fifth weft yarn W5 as a reference, the floating and sinking states of the ten warp yarns are: sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating; taking the sixth weft yarn W6 as a reference, the floating and sinking states of the ten warp yarns are: floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating; taking the seventh weft yarn W7 as a reference, the floating and sinking states of the ten warp yarns are: sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating; taking the eighth weft yarn W8 as a reference, the floating and sinking states of the ten warp yarns are: floating-floating-sinking-floating-floating-floating-floating-sinking-floating-floating-floating-floating-floating-floating-floating-floating-floating-floating.

[0041] Reference Figure 3 The weaving process of the novel jacquard stretch fabric of this embodiment is: winding process → warping process → sizing process → reeding process → weaving process → finishing process.

[0042] Winding process: On the fully automatic winding machine, the bobbin is wound into a bobbin with a certain density.

[0043] Warping process: The warp yarn is drawn out from the winding bobbin to form a yarn sheet, so that the warp yarn has uniform tension and is tightly wound on the warping shaft in parallel with each other.

[0044] Sizing process: the warp yarn is passed through a sizing tank filled with sizing material and dried so that the sizing material is fixed to the yarn, thereby improving the yarn strength and reducing static electricity in the subsequent weaving process; the sizing rate is controlled to be 10% and the sizing speed is 100 m / min; the sizing material used for sizing is WJ-98 sizing material (solid content 20.5%, refractive index 0.87, viscosity (30°C) 10-60 mPa·s, pH value 7-8) from Wujiang Tianli Polymer Co., Ltd., and other types of sizing materials may also be used in other embodiments.

[0045] Reeding process: The warp yarn is passed through the drop wire, heald and reed in sequence according to the method specified by the fabric process requirements; the reed width is 220cm, the reed number is 21cm, and the ground weave adopts 2-insert reed; in order to ensure that the edge of the cloth is flat and not curled, the edge weave adopts 3-insert reed.

[0046] Weaving process: using air jet loom, opening time 290 degrees, back beam height 55 mm, warp let-off time 310 degrees, warp let-off tension 1500 N, speed 595 rpm; through the cooperation of five major systems of opening, weft insertion, weft beating, take-up and warp let-off, the warp and weft yarns are interwoven to form fabrics according to the design requirements; during the interweaving process, one nozzle sprays N70D+40D nylon spandex coated yarn, and the other nozzle sprays 90D nylon stretch yarn.

[0047] Finishing process: inspect, measure and repair the grey fabric. The elastic coefficient of the finished product is 14.8%, which has good elasticity.

[0048] [Example 2]

[0049] Example 2 is based on Example 1, except that the warp density is 156 yarns / 10 cm, and the weft density is 144 yarns / 10 cm. The elastic coefficient of the finished product is 13.2%, which has good elasticity.

[0050] [Example 3]

[0051] Example 3 is based on Example 1, except that: Figure 4 The fabric's cyclic unit structure is staggered 1 / 2 in the radial direction. The finished product has an elastic coefficient of 14.5%, which has good elasticity.

[0052] [Examples 4-8]

[0053] Examples 4-8 are all based on Example 1, with the difference being that different sizing agents are used in the sizing process.

[0054] The sizing agent used in the sizing process of Example 4-8 is prepared from the raw materials in the proportions shown in Table 1:

[0055] Table 1. Raw material ratio of slurry in the embodiment

[0056] raw material Example 4 Example 5 Example 6 Example 7 Example 8 Acrylate monomer / kg 68 78 90 90 90 Acrylic monomer / kg 18 12 8 8 8 Styrene / kg 10 8 6 6 6 Hexadecanol / kg 5 8 10 10 10 Reactive emulsifier / kg 2 2 3 3 3 Ammonium persulfate / kg 0.8 1.0 1.2 1.2 1.2 Dodecyl mercaptan / kg 0.1 0.2 0.3 0.3 0.3 Penetrant JFC / kg 3 4 4 4 4 Modification additive / kg 10 10 10 15 50 Silicone defoamer / kg 1 2 2 2 2 Deionized water / kg 450 480 500 500 500

[0057] In Examples 4-8, only hexadecanol is used as an illustrative example of a C16-C18 aliphatic saturated alcohol containing a straight-chain or branched hydrocarbon group. In other examples, other aliphatic saturated alcohols such as octadecyl alcohol may also be used. In Examples 4-8, the acrylic monomer is a mixture of acrylic acid and methacrylic acid in a weight ratio of 1:10. In other examples, the ratio of the two can be adjusted within the range of 1:(3-15); the acrylic ester monomer is a mixture of methyl acrylate, butyl acrylate and methyl methacrylate in a weight ratio of 2:2:1; the silicone defoamer model is Maitu SAG 622 (Tuoxin Chemical), and the reactive emulsifier model is LRS10 (Guangzhou Dongxin New Materials).

[0058] The modification aids in Examples 4-8 were prepared by the following method:

[0059] A mixture of dihydroxyethylglycine and catecholethylamine in a weight ratio of 1:3 is stirred in an aqueous solution at 50°C and pH=8.5-9.5 for 3 hours, dried and ground, and then n-butanol is added to disperse evenly to obtain a modified auxiliary agent; the amount of n-butanol added is 5 times the total weight of the dihydroxyethylglycine and catecholethylamine.

[0060] The sizing material used in the sizing process of Example 4-8 is prepared from the raw materials in Table 1 through the following steps:

[0061] Add 90% of the total amount of deionized water to a reaction vessel equipped with a stirrer, a heater, a thermometer and a reflux condenser, start the stirrer to start stirring, add a reactive emulsifier while stirring, heat to 95°C, and keep warm; add acrylic monomer, acrylic ester monomer, styrene, hexadecanol and dodecyl mercaptan to a mixing container, stir evenly to obtain a mixture for use; weigh ammonium persulfate and add the remaining amount of deionized water to prepare an ammonium persulfate aqueous solution, first add 1 / 2 of the ammonium persulfate aqueous solution to the reaction vessel in step one, and then start to drop the remaining 1 / 2 of the ammonium persulfate aqueous solution and the mixture obtained in step two, control the dropping time to 2h, maintain 95°C for 100min after the dropping is completed; cool to 65°C after the insulation is completed, and adjust the pH of the mixture in the reaction container to 7.0-8.0 with ammonia water; when the mixture in the reaction container is cooled to 35°C, add fatty alcohol polyoxyethylene ether, modification aid and silicone defoamer, stir evenly and filter the material to obtain a slurry for use.

[0062] [Comparative Examples 1-3]

[0063] Comparative Examples 1-3 are all based on Example 4, with the difference being that the raw material compositions of the sizing agent used in the sizing process are different, as shown in Table 2 for details.

[0064] raw material Example 4 Comparative Example 1 Comparative Example 2 Comparative Example 3 Acrylate monomer / kg 68 68 68 68 Acrylic monomer / kg 18 18 18 18 Styrene / kg 10 10 10 10 Hexadecanol / kg 5 0 5 0 Reactive emulsifier / kg 2 2 2 2 Ammonium persulfate / kg 0.8 0.8 0.8 0.8 Dodecyl mercaptan / kg 0.1 0.1 0.1 0.1 Penetrant JFC / kg 3 3 3 3 Modification additive / kg 10 10 0 0 Silicone defoamer / kg 1 1 1 1 Deionized water / kg 450 450 450 450

[0065] [Performance test]

[0066] The grey fabrics woven from each embodiment / control example were inspected respectively, and the grey fabrics were scored according to the four-point scoring method during the inspection process. The scoring criteria are: one point for a defect length of 3 inches or less; two points for a defect length greater than 3 inches and less than 6 inches; three points for a defect length greater than 6 inches and less than 9 inches; four points for a defect length greater than 9 inches. The deduction for all defects in the warp and weft directions in the same yard shall not exceed 4 points; for serious defects, each yard of defects will be scored as four points, such as holes, tears, etc.; for continuous defects, such as horizontal bars, edge-to-edge color difference, narrow seals or irregular cloth width, creases, etc., each yard of defects should be scored as four points; no deduction will be made within 1 inch of the cloth edge.

[0067] Inspection conditions: The cloth inspection machine is equipped with a free speed adjustment device of 0 to 18 yards per minute. The inspection speed is not allowed to exceed 18 yards per minute. The inspection inclination angle is 45 degrees and it is equipped with upper and lower lights.

[0068] After the four-point deduction system is used for the inspection of grey fabrics, the defect rate is calculated according to the following steps:

[0069] Add up the deductions for all defects detected to get the total deduction score; record the total length of the inspected grey cloth in yards; calculate the defect rate, and keep the result to 3 decimal places. The result is recorded in Table 3. The calculation formula is: Defect rate = total deduction score / inspection length (yards). The lower the defect rate, the better the quality of the grey cloth; the higher the defect rate, the worse the quality of the grey cloth. The defect rate of qualified grey cloth generally does not exceed 0.03 points / yard.

[0070] Table 3. Grey cloth defect rate inspection results

[0071] project Defect rate project Defect rate Example 1 0.021 points / yard Example 7 0.008 points / yard Example 2 0.028 points / yard Example 8 0.005 points / yard Example 3 0.024 points / yard Comparative Example 1 0.037 points / yard Example 4 0.015 points / yard Comparative Example 2 0.042 points / yard Example 5 0.013 points / yard Comparative Example 3 0.048 points / yard Example 6 0.011 points / yard - -

[0072] From the test data in the above table, it can be seen that sizing the warp yarn with the slurry prepared by the specific method of the present invention can significantly reduce the defect rate of the grey cloth. The possible reason is that synthetic fibers such as nylon and spandex have poor affinity for the slurry. During high-speed sizing, the slurry may be difficult to penetrate quickly, the penetration is uneven, and the slurry is not firmly attached, which leads to problems such as yarn breakage, flying feathers, and static electricity during the manufacturing process; the slurry used in the process of the present invention can more evenly penetrate the yarn and firmly adhere to it during the rapid sizing process. After sizing, it can significantly reduce the friction between the yarns, improve the yarn strength, reduce static electricity, and effectively reduce the problems of yarn breakage and flying feathers in the weaving process, thereby significantly reducing the defect rate of the grey cloth. At the same time, it is worth noting that compared with the control example, when the slurry preparation raw materials only contain penetrant, penetrant and aliphatic saturated alcohol, penetrant and modifying additive, the defect rate of the grey cloth increases significantly. This shows that under the premise of other conditions being the same, the penetrant, aliphatic saturated alcohol and modifying additive in the slurry have the effect of synergistically reducing the defect rate of the grey cloth, and the defect rate of the grey cloth can be reduced to below 0.015 points / m.

[0073] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A novel jacquard stretch fabric, comprising a plurality of cyclic unit structures woven from warp yarns and weft yarns, characterized in that: Each cycle unit structure includes ten warp yarns and eight weft yarns interwoven with the warp yarns; the eight weft yarns are respectively a first weft yarn (W1), a second weft yarn (W2), a third weft yarn (W3), a fourth weft yarn (W4), a fifth weft yarn (W5), a sixth weft yarn (W6), a seventh weft yarn (W7) and an eighth weft yarn (W8); the warp yarn, the first weft yarn (W1), the second weft yarn (W2), the third weft yarn (W3), the fifth weft yarn (W5), the sixth weft yarn (W6) and the seventh weft yarn (W7) are all nylon-spandex covered yarns; the fourth weft yarn (W4) and the eighth weft yarn (W8) are both nylon elastic yarns; Taking the first weft yarn (W1) as a reference, the floating and sinking states of the ten warp yarns are: floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking; taking the second weft yarn (W2) as a reference, the floating and sinking states of the ten warp yarns are: sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking; taking the third weft yarn (W3) as a reference, the floating and sinking states of the ten warp yarns are: floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking; taking the fourth weft yarn (W4) as a reference, the floating and sinking states of the ten warp yarns are: floating-floating-floating-floating-sinking-floating-floating-floating-floating-sinking ; Taking the fifth weft yarn (W5) as a reference, the floating and sinking states of the ten warp yarns are: sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating; taking the sixth weft yarn (W6) as a reference, the floating and sinking states of the ten warp yarns are: floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking; taking the seventh weft yarn (W7) as a reference, the floating and sinking states of the ten warp yarns are: sinking-floating-sinking-floating-sinking-floating-sinking-floating-sinking-floating; taking the eighth weft yarn (W8) as a reference, the floating and sinking states of the ten warp yarns are: floating-floating-sinking-floating-floating-floating-floating-sinking-floating-floating-floating-floating-floating-floating-floating-floating-floating-floating.

2. The novel jacquard stretch fabric according to claim 1, characterized in that: The warp yarn, the first weft yarn (W1), the second weft yarn (W2), the third weft yarn (W3), the fifth weft yarn (W5), the sixth weft yarn (W6) and the seventh weft yarn (W7) are all N70D+40D nylon spandex covered yarns; the fourth weft yarn (W4) and the eighth weft yarn (W8) are both 90D nylon stretch yarns.

3. The novel jacquard stretch fabric according to claim 2, characterized in that: The warp density is 106 yarns / 10cm, and the weft density is 94 yarns / 10cm.

4. The novel jacquard stretch fabric according to claim 2, characterized in that: The warp density is 156 yarns / 10cm, and the weft density is 144 yarns / 10cm.

5. The novel jacquard stretch fabric according to claim 1, characterized in that: Adjacent circulation unit tissues are staggered in radial or latitudinal directions.

6. The novel jacquard stretch fabric according to claim 1, characterized in that: The warp yarns and / or weft yarns are dyed yarns.

7. The weaving method of the novel jacquard stretch fabric according to any one of claims 1 to 6 comprises a warping process, a sizing process, a reeding process and a weaving process, characterized in that: In the reeding process, the reed number is 21cm, the reed width is 220cm, the ground weave adopts 2-insert reeds, and the side weave adopts 3-insert reeds.

8. The weaving method of the novel jacquard stretch fabric according to claim 7 is characterized in that: In the sizing process, the sizing rate is 10±0.5%.

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