A method for weaving knitted fabric with good elasticity

Abstract

The invention relates to a weaving method for knitted fabrics with good elasticity, comprising: adopting a yarn pressing type single needle bed double jacquard warp knitting machine; the needles are respectively a jacquard comb bar JB1, a bottom comb comb bar GB2, a bottom comb comb bar GB3, a jacquard comb bar JB4, and a bottom comb comb bar GB5 from front to back; polyester, cationic or core-spun yarn is adopted on JB1, polyester low-elasticity or polyester high-elasticity is adopted on GB2, polyester low-elasticity or polyester high-elasticity is adopted on GB3, and polyester spandex core-spun yarn or cationic spandex core-spun yarn is adopted on JB4; the yarn threading of the machine adopts a full yarn threading method; JB1 is a creel yarn and adopts a negative warp feeding method, and the others are all pan yarns and adopt an active warp feeding method; GB2 and GB3 have a straight knitting chain structure, and the basic pad yarn numbers of other combs are determined by the specific conditions required by the fabric design effect; the warp feeding amount is estimated according to the needle movement situation before the machine is put on. The invention can give full play to the advantages of the jacquard bar and flexibly produce an elastic fabric with good elasticity, air permeability and softness.

Description

Technical Field

[0001] The invention relates to the field of weaving textile fabrics, in particular to a weaving method for knitted fabrics with good elasticity. Background Art

[0002] Outdoor sports fabrics need to have good elasticity. The good elasticity of elastic fabrics can keep sports products and sports rhythm in sync, thereby improving the safety and comfort of sports, promoting the convenience of outdoor sports, and enhancing the sports experience. At present, the elastic fabrics on the market are mainly aimed at the lack of development of elastic upper knitted products in clothing. The existing elastic upper knitted products have poor rebound performance, are easy to deform, and have high costs. Based on this, it is particularly important to develop a fabric with good practicality and elasticity. Summary of the invention

[0003] The object of the present invention is to provide a weaving method for knitted fabrics with good elasticity, which can solve the problems of poor resilience, easy deformation and high cost of knitted products, especially upper knitted products.

[0004] To achieve the above object, the present invention provides the following technical solution: a weaving method for knitted fabrics with good elasticity, the weaving method comprising the following steps:

[0005] Step S1, selection of a knitting machine: using a yarn pressing type single needle bed double jacquard warp knitting machine;

[0006] Step S2, selection of needles: the needles are, from front to back, jacquard comb bar JB1, bottom comb bar GB2, bottom comb bar GB3, jacquard comb bar JB4, bottom comb bar GB5;

[0007] Step S3, using yarns: 75-150D polyester, cationic or core-spun yarn is used on the jacquard bar JB1, 70-100D polyester low-elasticity or polyester high-elasticity is used on the bottom comb bar GB2, 70-100D polyester low-elasticity or polyester high-elasticity is used on the bottom comb bar GB3, and 70-100D polyester spandex core-spun yarn or cationic spandex core-spun yarn is used on the jacquard bar JB4;

[0008] Step S4, threading of the machine: the jacquard bar JB1, the bottom comb bar GB2, the bottom comb bar GB3, and the jacquard bar JB4 all adopt the method of full threading of the yarn, and the bottom comb bar GB5 is used as needed;

[0009] Step S5, warp letting-off method: the jacquard bar JB1 is the creel yarn, and adopts the passive warp letting-off method; the bottom comb bar GB2, bottom comb bar GB3, jacquard bar JB4, and bottom comb bar GB5 are all pan yarns, and adopt the active warp letting-off method;

[0010] Step S6, needle movement mode: the bottom combing bars GB2 and GB3 adopt a straight chain structure, and the basic yarn number of the jacquard combing bars JB1 and JB4 is determined by the specific situation required by the fabric design effect;

[0011] Step S7, warp let-off amount: estimate the warp let-off amount according to the needle movement before the machine is put on.

[0012] Furthermore, the polyester low-elastic yarn used in the jacquard bar JB1 in step S3 is 70-150D, the polyester high-strength yarn used in the bottom comb bar GB2 is 70-100D, the polyester high-strength yarn used in the bottom comb bar GB3 is 70-150D, and the polyester spandex core-spun yarn used in the jacquard bar JB4 is 40D / 70D-100D / 150D.

[0013] Furthermore, in the step S3, the yarn content of the yarn in the jacquard bar JB1 is 33%, the yarn content of the yarn in the bottom comb bar GB21 is 24%, the yarn content of the yarn in the bottom comb bar GB3 is 25%, and the yarn content of the yarn in the jacquard bar JB4 is 18%.

[0014] Furthermore, in step S5, the bottom comb bar GB2 and the bottom comb bar GB3 have a straight-woven chain structure in which the yarn padding numbers of the bottom comb bar GB2 and the bottom comb bar GB3 are 1-0 / 0-1 / / or 0-1 / 1-0 / / .

[0015] Furthermore, the basic inlay yarn numbers of the jacquard bar JB1 and the jacquard bar JB4 in step S5 are further determined by the specific circumstances required for the fabric design effect: the basic inlay yarn numbers of the jacquard bar JB1 are 0-1 / 3-2 / / , or 1-0 / 2-3 / / , or 0-1 / 2-1 / / , or 1-0 / 1-2 / / , and on the basis of the basic inlay yarn numbers of 0-1 / 3-2 / / , or 1-0 / 2-3 / / , or 0-1 / 2-1 / / , or 1-0 / 1-2 / / , they are offset to produce different patterns; the basic inlay yarn numbers of the jacquard bar JB4 are 0-0 / 2-2 / / , and on the basis of the basic inlay yarn numbers of 0-0 / 2-2 / / , they are offset and cooperated with the jacquard bar JB1 to produce different three-dimensional patterns.

[0016] Furthermore, the step S6 is further as follows: when the basic inlay yarn of the jacquard bar JB1 digitally moves at 0-1 / 3-2 / / , the estimated warp feeding amount is 2000-2300MM / lac; when the basic inlay yarn of the bottom comb bar GB2 and the bottom comb bar GB3 digitally moves at 1-0 / 0-1 / / , the estimated warp feeding amount is 1400-1600MM / lac; when the basic inlay yarn of the jacquard bar JB4 digitally moves at 0-0 / 2-2 / / , the estimated warp feeding amount is 900-1100MM / lac.

[0017] The beneficial effects of the present invention are as follows: the present weaving method adopts a yarn pressing type single needle bed double jacquard warp knitting machine, which is knitted by two jacquard bars and two bottom comb bars, and one bottom comb bar is used to participate in knitting according to the needs. Through reasonable process design, the advantages of the jacquard bars are fully utilized, and the core-spun yarn and ordinary yarn as well as yarns with different D numbers and F numbers are flexibly used, so that the present method can produce an elastic fabric with good elasticity, air permeability, softness and beautiful appearance. The jacquard patterns are varied and can be widely used in clothing, footwear, furniture, advertising packaging and other fields. Textile clothing and footwear materials are selected for knitting. The materials are easily degradable, environmentally friendly and recyclable. The one-piece knitting molding has more advantages in convenient production, cost saving and enhanced physical properties, and has broad market prospects in the popularization of elastic fabrics. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial three-dimensional schematic diagram of an example of a fabric woven by the method of the present invention. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] See also Figure 1 The present invention provides an embodiment: a weaving method of a knitted fabric with good elasticity, the weaving method comprising the following steps:

[0021] Step S1, selection of a knitting machine: a yarn pressing type single needle bed double jacquard warp knitting machine is used; the machine moves from the front to the back of the machine, and has four functional aggregation working lines, namely, jacquard comb jacquard for base fabric looping, jacquard jacquard for weft insertion, double ground comb looping, and ground comb weft insertion reinforcement and elasticization. The four functional aggregation layers perform different knitting movements in succession within the time of one circle of the needle bed cam movement, and are integrated and knitted into one when one circle of the cam movement is completed to form different jacquard effects of the fabric;

[0022] Step S2, selection of needles: the needles are, from front to back, jacquard comb bar JB1, bottom comb bar GB2, bottom comb bar GB3, jacquard comb bar JB4, bottom comb bar GB5;

[0023] Step S3, the yarn used: 75-150D polyester, cationic or core-spun yarn is used on the jacquard bar JB1, 70-100D polyester low-elasticity or polyester high-elasticity is used on the bottom comb bar GB2, 70-100D polyester low-elasticity or polyester high-elasticity is used on the bottom comb bar GB3, and 70-150D polyester spandex core-spun yarn or cationic spandex core-spun yarn is used on the jacquard bar JB4; these materials are easily degradable, environmentally friendly and recyclable; the style of single-sex fabrics is closely related to the yarns of different D and F numbers. The elasticity of the fabric is closely related to the content of the core-spun yarn, the fabric process structure and the weaving density;

[0024] Step S4, threading of the machine: the jacquard bar JB1, the bottom comb bar GB2, the bottom comb bar GB3, and the jacquard bar JB4 are all threaded with the yarn in full, and the bottom comb bar GB5 is used as needed; weaving is usually sufficient with two jacquard bars and two bottom comb bars;

[0025] Step S5, warp letting-off method: the jacquard bar JB1 is the creel yarn, and adopts the passive warp letting-off method; the bottom comb bar GB2, bottom comb bar GB3, jacquard bar JB4, and bottom comb bar GB5 are all pan yarns, and adopt the active warp letting-off method;

[0026] Step S6, needle movement mode: the bottom combing bars GB2 and GB3 adopt a straight chain structure, and the basic yarn number of the jacquard combing bars JB1 and JB4 is determined by the specific situation required by the fabric design effect;

[0027] Step S7, let-off amount: the let-off amount is estimated according to the needle movement before the machine is put on. Different needle movements require different let-off amounts, and the actual let-off amount required will also vary depending on the jacquard needle movement, machine, and yarn.

[0028] Please continue reading Figure 1 In one embodiment, the present invention provides that the polyester low-elastic yarn used in the jacquard bar JB1 in step S3 is 70-150D, the polyester high-strength yarn used in the bottom comb bar GB2 is 70-100D, the polyester high-strength yarn used in the bottom comb bar GB3 is 70-150D, and the polyester spandex core-spun yarn used in the jacquard bar JB4 is 40D / 70D-100D / 150D. The high-strength yarn used ensures the stability of the fabric, improves the physical properties of the fabric, and makes the fabric have the characteristics of high strength, wear resistance, and folding resistance; the spandex core-spun yarn used makes the fabric have good elasticity, wherein 40D / 70D-100D / 150D is the D number of the core yarn in the polyester spandex core-spun yarn as the outer yarn.

[0029] Please continue reading Figure 1 In one embodiment, the present invention provides that the yarn content of the yarn in the jacquard bar JB1 in step S3 is 33%, the yarn content of the yarn in the bottom comb bar GB21 is 24%, the yarn content of the yarn in the bottom comb bar GB3 is 25%, and the yarn content of the yarn in the jacquard bar JB4 is 18%. Different yarn contents will affect the performance of the gauze, and the set yarn content can ensure that the woven fabric has good elasticity and physical properties.

[0030] Please continue reading Figure 1In one embodiment, the bottom combing bar GB2 and bottom combing bar GB3 in step S5 further have a straight braided chain structure: the bottom combing bar GB2 and bottom combing bar GB3 have a yarn inlay number of 1-0 / 0-1 / / or 0-1 / 1-0 / / . The bottom combing bars GB2 and GB3 have a straight braided chain, and the yarn inlay number is 1-0 / 0-1 / / ; the yarn inlay number can also be 0-1 / 1-0 / / , and the coil state at this time is a closed coil.

[0031] Please continue reading Figure 1 The present invention provides an embodiment in which the basic inlay yarn numbers of the jacquard bar JB1 and the jacquard bar JB4 in step S5 are further determined by the specific situation required by the fabric design effect: the basic inlay yarn numbers of the jacquard bar JB1 are 0-1 / 3-2 / / , or 1-0 / 2-3 / / , or 0-1 / 2-1 / / , or 1-0 / 1-2 / / , and on the basis of the basic inlay yarn numbers of 0-1 / 3-2 / / , or 1-0 / 2-3 / / , or 0-1 / 2-1 / / , or 1-0 / 1-2 / / , the basic inlay yarn numbers are offset to produce different patterns; the basic inlay yarn numbers of the jacquard bar JB4 are 0-0 / 2-2 / / , and on the basis of the basic inlay yarn numbers of 0-0 / 2-2 / / , the basic inlay yarn numbers are offset and cooperated with the jacquard bar JB1 to produce different three-dimensional patterns. The basic inlay yarn digital number of the jacquard bar JB1 is: 0-1 / 3-2 / / , and different patterns are produced by offsetting on the basis of 0-1 / 3-2 / / . At this time, the coil shape is an open coil. When the coil is turned into a closed coil, the basic chain block is 1-0 / 2-3 / / , and the fabric effect presented is different. In addition, 0-1 / 2-1 / / or 1-0 / 1-2 / / can also be produced. The basic inlay yarn digital number of the jacquard is determined by the specific situation required by the fabric design effect. The basic inlay yarn digital number of the jacquard bar JB4 is: 0-0 / 2-2 / / , and different three-dimensional patterns are produced by offsetting on the basis of 0-0 / 2-2 / / and cooperating with the jacquard bar JB1. Through the jacquard offset definition, a three-dimensional, plane, and mesh structure formed by the cooperation of thick tissue, thin tissue, and mesh tissue can be woven, and with the jacquard jacquard pattern that can be changed arbitrarily, the pattern that can be jacquard can be varied. The front and back layers of Jacquard may also be made from different colors of yarn to create a style with special color and feel.

[0032] Please continue reading Figure 1In one embodiment, the present invention provides that step S6 is further as follows: when the basic lamination of the jacquard bar JB1 is digitally 0-1 / 3-2 / / , the estimated warp let-off is 2000-2300MM / lac; when the basic lamination of the bottom comb bar GB2 and the bottom comb bar GB3 is digitally 1-0 / 0-1 / / , the estimated warp let-off is 1400-1600MM / lac; when the basic lamination of the jacquard bar JB4 is digitally 0-0 / 2-2 / / , the estimated warp let-off is 900-1100MM / lac. In actual operation, material preparation and machine debugging can be performed according to the estimated warp let-off. Specific embodiment 1:

[0034] The present invention provides a weaving method of a knitted fabric with good elasticity, comprising the following steps:

[0035] Yarn:

[0036] The jacquard comb JB1 is made of 150D polyester low-elasticity, the creel yarn is fully threaded, the warp amount is 1280MM / lacquer, and the yarn content is 33%.

[0037] The bottom comb bar GB2 is made of 100D polyester high-strength yarn, the yarn is fully threaded, the warp amount is 1380MM / lacquer, and the yarn content is 24%.

[0038] The bottom comb bar GB3 is made of 100D polyester high-strength yarn, the disc yarn is fully threaded, the warp amount is 1300MM / lacquer, and the yarn content is 25%.

[0039] Jacquard bar JB4 uses 70D / 70D polyester chloroprene core-spun yarn, the disc yarn is fully threaded, the warp amount is 1140MM / lacquer, and the yarn content is 18%.

[0040] Wearing yarn:

[0041] A yarn pressing type single needle bed double jacquard warp knitting machine is used for weaving, and from the front to the back are jacquard bar JB1, bottom bar bar GB2, bottom bar bar GB3, jacquard bar JB4, and bottom bar bar GB5.

[0042] The jacquard bar JB1, the bottom comb bar GB2, the bottom comb bar GB3 and the jacquard bar JB4 are all fully threaded with yarn, and the bottom comb bar GB5 is not used.

[0043] Weaving:

[0044] The basic yarn number of the Jacquard bar JB1 is: 1-0 / 2-3 / / , and different patterns are produced by offsetting based on 1-0 / 2-3 / / ;

[0045] The yarn numbers of bottom comb bars GB2 and GB3 are: 0-1 / 1-0 / / ;

[0046] The basic yarn padding digital pattern of the jacquard bar JB4 is: 0-0 / 2-2 / / . On the basis of 0-0 / 2-2 / / , it is offset and coordinated with the jacquard bar JB1 to produce different three-dimensional patterns.

[0047] Physical property testing:

[0048] The physical properties of the fabric in this implementation case were tested. The warp tear strength of the fabric reached 6.5kg, the weft tear strength reached 5kg; the warp breaking strength reached 60kg / 2.54cm, the weft breaking strength reached 28kg / 2.54cm; the warp breaking elongation reached 40%, the weft breaking elongation reached 75%; the folding resistance reached 125,000 turns; the Martindale abrasion resistance reached 40 turns, and the fabric had good elasticity and strength.

[0049] In this implementation case, a single-needle-bed double-jacquard warp knitting machine of the pressed yarn type is used, and ordinary polyester and elastic yarn are used in combination. Through the cooperation of the double jacquard guide bars, the fabric has a good elastic effect, rich fabric structure, rich patterns, soft and comfortable hand feel, good physical properties, high production speed, low cost, and has broad market prospects in the popularization of elastic fabrics.

[0050] The present invention has the following working principle: a yarn pressing type single needle bed double jacquard warp knitting machine is adopted in the weaving method, which is knitted by two jacquard combs and two bottom comb combs. One bottom comb comb is used to participate in the knitting according to the demand. Through a good yarn ratio, the principle of a single needle bed double jacquard machine is used, and the process design is clever and flexible to enrich the texture of the elastic fabric, which greatly improves the elastic performance and aesthetic performance of the fabric. The elastic fabric is more colorful, softer, has a better hand feel, and is very innovative.

[0051] The above description is only a preferred embodiment of the present invention and should not be construed as limiting the present application. All equivalent changes and modifications made within the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A method for weaving a knitted fabric with good elasticity, characterized in that: The weaving method comprises the following steps: Step S1, selection of a knitting machine: using a yarn pressing type single needle bed double jacquard warp knitting machine; Step S2, configuration of comb bars: from front to back, they are jacquard comb bar JB1, bottom comb bar GB2, bottom comb bar GB3, jacquard comb bar JB4, bottom comb bar GB5; Step S3, using yarns: 75-150D polyester, cationic or core-spun yarn is used on the jacquard bar JB1, 70-100D polyester low-elasticity or polyester high-elasticity is used on the bottom comb bar GB2, 70-100D polyester low-elasticity or polyester high-elasticity is used on the bottom comb bar GB3, and 70-100D polyester spandex core-spun yarn or cationic spandex core-spun yarn is used on the jacquard bar JB4; Step S4, threading of the machine: the jacquard bar JB1, the bottom comb bar GB2, the bottom comb bar GB3, and the jacquard bar JB4 all adopt the method of full threading of the yarn, and the bottom comb bar GB5 is used as needed; Step S5, warp letting-off method: the jacquard bar JB1 is the creel yarn, and adopts the passive warp letting-off method; the bottom comb bar GB2, bottom comb bar GB3, jacquard bar JB4, and bottom comb bar GB5 are all pan yarns, and adopt the active warp letting-off method; Step S6, needle movement mode: the bottom combing bars GB2 and GB3 adopt a straight chain structure, and the basic yarn number of the jacquard combing bars JB1 and JB4 is determined by the specific situation required by the fabric design effect; Step S7, warp let-off amount: estimate the warp let-off amount according to the needle movement before the machine is put on; In step S5, the bottom combing bar GB2 and the bottom combing bar GB3 have a straight braided chain structure, and the yarn inlay numbers of the bottom combing bar GB2 and the bottom combing bar GB3 are 1-0 / 0-1 / / or 0-1 / 1-0 / / ; The basic inlay yarn numbers of the jacquard bar JB1 and the jacquard bar JB4 in step S5 are further determined by the specific situation required by the fabric design effect: the basic inlay yarn numbers of the jacquard bar JB1 are 0-1 / 3-2 / / , or 1-0 / 2-3 / / , or 0-1 / 2-1 / / , or 1-0 / 1-2 / / , and on the basis of the basic inlay yarn numbers of 0-1 / 3-2 / / , or 1-0 / 2-3 / / , or 0-1 / 2-1 / / , or 1-0 / 1-2 / / , they are offset to produce different patterns; the basic inlay yarn numbers of the jacquard bar JB4 are 0-0 / 2-2 / / , and on the basis of the basic inlay yarn numbers of 0-0 / 2-2 / / , they are offset and cooperated with the jacquard bar JB1 to produce different three-dimensional patterns.

2. A method for weaving a knitted fabric with good elasticity according to claim 1, characterized in that: The polyester low-elastic yarn used in the jacquard bar JB1 in step S3 is 70-150D, the polyester high-strength yarn used in the bottom comb bar GB2 is 70-100D, the polyester high-strength yarn used in the bottom comb bar GB3 is 70-150D, and the polyester spandex core-spun yarn used in the jacquard bar JB4 is 40D / 70D-100D / 150D.

3. A method for weaving a knitted fabric with good elasticity according to claim 1, characterized in that: The yarn content of the yarn in the jacquard bar JB1 in step S3 is 33%, the yarn content of the yarn in the bottom comb bar GB21 is 24%, the yarn content of the yarn in the bottom comb bar GB3 is 25%, and the yarn content of the yarn in the jacquard bar JB4 is 18%.

4. A method for weaving a knitted fabric with good elasticity according to claim 1, characterized in that: The step S6 is further as follows: when the basic inlay yarn of the jacquard bar JB1 digitally moves 0-1 / 3-2 / / , the estimated warp feeding amount is 2000-2300MM / lac; when the basic inlay yarn of the bottom comb bar GB2 and the bottom comb bar GB3 digitally moves 1-0 / 0-1 / / , the estimated warp feeding amount is 1400-1600MM / lac; when the basic inlay yarn of the jacquard bar JB4 digitally moves 0-0 / 2-2 / / , the estimated warp feeding amount is 900-1100MM / lac.

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