A method for producing a free-swimming ribbed swimsuit fabric

Abstract

This invention discloses a method for producing a free-flowing, wavy striped swimsuit fabric, comprising the following steps: S1, selecting the raw materials required for the fabric; S2, selecting a 28-needle 34-inch weft-knitted double-sided circular knitting machine; S3, determining the needle arrangement, knitting structure, doffing method, and yarn feed amount for the fabric knitting process, and knitting to obtain the fabric body; S4, dyeing and finishing the obtained fabric body, the dyeing and finishing process being: greige fabric—plain washing—degreasing in a setting machine—double vacuum moisture absorption—initial setting—overflow dyeing—post-setting, completing the processing; the fabric body has a wavy stripe layer and a raised layer, the wavy stripe layer and the raised layer are alternately arranged, the width of the raised layer is greater than the width of the wavy stripe layer, and the main yarn and padding yarn are selected for knitting. Under the action of the wavy stripe layer, rapid water wicking is achieved, greatly reducing the resistance during swimming; at the same time, through the structure and raw materials, a free-flowing, wavy striped swimsuit fabric with grooves that quickly wicks water, is waterproof and sunproof, has good stretch and resilience, is comfortable to wear without being constricting, and offers a variety of styles is provided.

Description

TECHNICAL FIELD

[0001] The present application belongs to a production method of swimwear fabric, in particular to a production method of free shuttle concave stripe swimwear fabric and the production method thereof. BACKGROUND

[0002] With the development of textile technology, in recent years, the market swimwear fabric, especially the new type of leisure jacquard swimwear fabric is booming, especially the small jacquard type develops rapidly, in addition, the traditional warp and weft knitted plain structure swimwear fabric still occupies a certain share. Although the new type of leisure jacquard swimwear fabric has various styles, due to the organizational structure, it is relatively thick and heavy, and due to the irregular lines, it has a large water resistance when swimming; while the traditional warp and weft knitted plain structure swimwear has a relatively large water resistance when swimming, but it is still larger than the new type of jacquard swimwear fabric. SUMMARY

[0003] The purpose of the present application is to provide a production method of free shuttle concave stripe swimwear fabric which can solve at least one of the above problems.

[0004] According to one aspect of the present application, a production method of free shuttle concave stripe swimwear fabric is provided, comprising the following steps:

[0005] S1, selecting raw materials required by the fabric;

[0006] S2, selecting the fabric weaving machine type as 28 needle 34 inch weft knitting double-sided circular knitting machine;

[0007] S3, determining the needle arrangement mode, knitting structure, doffing mode and yarn feeding amount of the fabric knitting process, and knitting to obtain the fabric body;

[0008] S4, dyeing and finishing the fabric body obtained above, and the dyeing and finishing process is: grey cloth - flat washing - oil removal in setting machine - double vacuum moisture absorption - preliminary setting - overflow dyeing - post setting, completing processing;

[0009] The fabric body is provided with a concave stripe layer and a convex layer, the concave stripe layer and the convex layer are arranged at intervals, the width of the convex layer is greater than the width of the concave stripe layer, and the main body yarn and the spacer yarn selected for the fabric are knitted.

[0010] The present application has the advantages that: through the interval arrangement of the concave stripe layer and the convex layer, under the action of the concave stripe layer, rapid water guiding is realized, and the swimming resistance is greatly reduced; at the same time, through the organizational structure raw material, the defect of large resistance when swimming is overcome, and a free shuttle concave stripe swimwear fabric with grooves, rapid water guiding, sun protection, good stretch and rebound, comfortable wearing, no squeezing, and various styles is provided.

[0011] In some embodiments, the fabric is knitted on a corresponding weft-knitting double-circular knitting machine, and the knitting structure of the fabric body is as follows: the needle-drum loops form a fine-strip water-conducting concave-strip layer, and the needle-drum loops form a wide-strip water-proof convex layer. Thus, the concave-strip layer and the convex layer can be knitted conveniently through the corresponding knitting structure.

[0012] In some embodiments, the doffing mode of the fabric body is a dense-end doffing mode, and the main yarn and the cushion yarn are doffed in each path. Thus, the overall rebounding effect of the fabric body can be further achieved, and the concave-strip layer and the convex layer can play corresponding roles.

[0013] In some embodiments, the main yarn is 70D / 68F high-elasticity matte polyamide DTY, and the cushion yarn is 40D-70D super-strong chlorine-resistant spandex. Thus, the main yarn has excellent wear resistance, light texture, high strength, and good rebounding performance; the cushion yarn has good tensile and recovery properties, and super-strong chlorine resistance, thereby further ensuring the high-elasticity and high-recovery and comfort of the fabric body.

[0014] In some embodiments, the needle arrangement mode used when the fabric body is knitted is a ribbing opposite-needle mode, the lower needle-drum knitting needles are arranged in 1212, and then one needle is removed, i.e., 1212X / 5 needles are one cycle; the upper-disk knitting needles are arranged in XXX21 / 5 needles, and then three needles are removed. Thus, the needle arrangement mode can meet the knitting requirements of the fabric body.

[0015] In some embodiments, the width of the concave-strip layer is 0.6-0.8 mm, the depth is 0.2-0.4 mm, the width of the convex layer is 1.8-2 mm, and the height is 0.2-0.4 mm. Thus, the concave-strip layer is in the form of a fine strip, and has good water-conducting effect; the convex layer has a large width and a corresponding height, and has good water-proof and sun-proof effects.

[0016] In some embodiments, one path is a complete cycle of a basic structure when the fabric body is knitted, the knitting mode of the needle-drum knitting needles is that the first, second, third, and fourth knitting needles are looped, and the fifth knitting needle is not knitted, thereby forming the convex layer; and the knitting mode of the needle-disk knitting needles is that the first, second, and third knitting needles are not knitted, and the fourth and fifth knitting needles are looped, thereby forming the concave-strip layer. Thus, the knitting requirements of the convex layer and the concave-strip layer are met.

[0017] In some embodiments, the yarn feed per 100 stitches during fabric knitting is 300–320 mm for the main yarn and 104–110 mm for the padding yarn. This yarn feed rate further ensures that the fabric body has excellent resilience.

[0018] In some implementations, the dual vacuum desiccation in step S4 is performed using a first vacuum pump and a second vacuum pump, with the second vacuum pump rotating at a higher speed than the first vacuum pump. This allows the fabric fibers to have a more three-dimensional shape.

[0019] In some embodiments, the fabric body obtained after step S4 has a width of 140cm and a weight of 200-250g / m². 2 The fabric density is 88-94 cpi and 50-54 wpi. This satisfies the requirements of lightweight fabric and comfortable use. Attached Figure Description

[0020] Figure 1 This is a triangular diagram illustrating the weaving process of a free-flowing, ribbed swimsuit fabric production method.

[0021] Figure 2 This is a weaving structure diagram of a production method for a free-flowing, ribbed swimsuit fabric. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings.

[0023] Reference Figure 1 A method for producing a free-striped swimsuit fabric includes the following steps:

[0024] S1. Select the raw materials needed for the fabric;

[0025] S2. Select a 28-needle 34-inch weft knitting double-sided circular knitting machine for the fabric;

[0026] S3. Determine the stitch arrangement, knitting structure, doffing method, and yarn feed amount for the fabric knitting process, and then knit the fabric to obtain the fabric body.

[0027] S4. Dye and finish the fabric obtained above. The dyeing and finishing process is as follows: greige fabric - flat-width washing - oil removal in a setting machine - double vacuum moisture absorption - initial setting - overflow dyeing - post-setting, to complete the processing.

[0028] The fabric body has a concave stripe layer and a convex layer, which are set alternately. The width of the convex layer is greater than the width of the concave stripe layer. The main yarn and padding yarn are used to weave the fabric.

[0029] During the weaving process, the fabric is woven in circles by the cylinder and needle plate of the corresponding weft knitting double-sided circular knitting machine. The weaving structure of the fabric body is as follows: the needle plate loops form a thin strip water-guiding concave strip layer, which is composed of 1 loop row and 2 loop warp as the basic cycle; the needle cylinder loops form a wide strip anti-permeability raised layer, which is composed of 1 loop row and 4 loop warp as the basic cycle.

[0030] The fabric body uses a dense doffing method, with both the main yarn and the padding yarn falling on each row.

[0031] The main yarn is 70D / 68F high-elastic matte nylon DTY (Draw Texturing Yarn). This nylon yarn has excellent abrasion resistance, light weight, high strength and good resilience. At the same time, the F / D value is close to 1, which makes the fabric soft and comfortable while also having a certain degree of stiffness. In other words, the fabric is soft on the surface but has a strong internal structure.

[0032] The padding yarn is selected from 40D to 70D super chlorine-resistant Lycra spandex. In some embodiments, 54D super chlorine-resistant Lycra spandex can be used. It has excellent tensile and recovery properties, as well as super chlorine resistance. Its chlorine resistance is more than 10 times that of commonly used spandex. Even in swimming pool water and seawater environments with high concentrations of active chlorine, spandex can maintain excellent strength and elastic recovery properties, thereby further ensuring the high elasticity, high recovery and comfort of the present invention.

[0033] The needle arrangement used when knitting the fabric body is as follows: rib stitch is used, the lower cylinder needle arrangement is 1212, and then one needle is removed, that is, 1212X / 5 needles is one cycle; the upper cylinder needle arrangement is: first remove 3 needles, then 21, that is: XXX21 / 5 needles is one cycle.

[0034] The width of the concave layer is 0.6–0.8 mm and the depth is 0.2–0.4 mm, while the width of the raised layer is 1.8–2 mm and the height is 0.2–0.4 mm.

[0035] When knitting the fabric body, one row is a complete cycle of a basic structure. The knitting method of the cylinder needles is: the 1st, 2nd, 3rd and 4th needles knit in circles, and the 5th needle does not knit, forming a raised layer. The knitting method of the dial needles is: the 1st, 2nd and 3rd needles do not knit, and the 4th and 5th needles knit in circles, forming a concave stripe layer.

[0036] When knitting the fabric, the yarn feed per 100 stitches is 300-320mm for the main yarn and 104-110mm for the padding yarn.

[0037] In step S4, the dual vacuum dehumidification is performed using a first vacuum pump and a second vacuum pump, with the second vacuum pump rotating at a higher speed than the first vacuum pump.

[0038] Specifically, the dyeing and finishing process for the woven fabric is as follows:

[0039] Flat-width washing: Use 300 liters of water with the degreasing agent and soda ash commonly used in flat-width washing of existing fabrics. Set the temperature of the washing tank to 95℃ and the speed to 15 meters / min to remove oily substances from the fabric yarn and the weaving process.

[0040] Degreasing in a setting machine—Double vacuum desiccation—Initial setting: After the flat-width washing is completed, degreasing in a setting machine is performed, which is a double degreasing process of flat-width washing and degreasing in a setting machine. 200L of water is added to the material tank of the setting machine, followed by the above-mentioned degreasing agent and soda ash. The temperature of the material tank of the setting machine is set to 90℃ and the speed is 20m / min to further remove oily substances from the fabric yarn and the weaving process. After the degreasing in the setting machine is completed, vacuum desiccation is performed. Compared with the conventional dyeing and finishing process of chemical fiber elastic fabrics, the production method of this invention adds a vacuum desiccation process, which is double vacuum desiccation, that is, two vacuum pumps are used to simultaneously desiccate at high speed. The speed of the first vacuum pump is 1200rpm / min and the speed of the second vacuum pump is 1500rpm / min. By using dual vacuum pumps to absorb moisture at different speeds, the fabric fibers are shaped to be more three-dimensional, thereby achieving the height required by the present invention for the fine strip water-guiding concave layer and the wide strip anti-permeability raised layer; then, the initial setting is arranged, during which the temperature of the setting machine is 195℃, the speed is 20 m / min, the lower overshoot is 10%, and the upper overshoot is 30%, and the setting is completed.

[0041] Overflow dyeing: Start dyeing when the liquid temperature in the high-temperature tank is 50-60℃, and then gradually increase the temperature to 98℃; keep at 98℃ for 40-60 minutes; then cool down and wash with water. The dyeing effect is stable.

[0042] Post-setting: Post-setting includes the following setting parameters: temperature: 180℃, machine speed: 30M / min, width: 140cm, overfeed: 30%.

[0043] After the above production process, the final fabric body has the following specifications: width 140cm, weight 200-250g / m². 2 The fabric density is cpi 88-94 and wpi 50-54.

[0044] Therefore, the fabric production method of the present invention, through the combination and variation of the number of needles drawn from the needle cylinder and needle plate, the raw material combination, and the yarn feeding amount, forms an initial concave-convex stripe style. After special dyeing and finishing processing, the present invention has at least the following advantages: the fabric surface has a concave-convex stripe effect, wherein the concave stripe layer is water-wicking and reduces resistance, the raised layer is waterproof and sun-protective, and has good tensile resilience, comfortable and non-restrictive wear, soft hand feel, and high chlorine resistance; tested by the ISO standard tensile method BS EN 14704-120N, the longitudinal tensile strength is 115%, the transverse tensile strength is 162%, and the longitudinal recovery rate is 92% in 1 minute and 95% in 30 minutes, while the transverse recovery rate is 90% in 1 minute and 93% in 30 minutes; in addition, tested by the ISO standard EN 13758-1:2001+A12006 method for testing the UV protection performance of textiles, the present invention can reach a UPF of 100+ and above, and UVA ≤ 4%, which has a very good sun protection effect, far exceeding the relevant industry standards.

[0045] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A method for producing a free-flowing, ribbed swimsuit fabric, characterized in that, Includes the following steps: S1. Select the raw materials required for the fabric; S2. Select a 28-needle 34-inch weft knitting double-sided circular knitting machine for the fabric; S3. Determine the stitch arrangement, knitting structure, doffing method, and yarn feed amount for the fabric knitting process, and then knit the fabric to obtain the fabric body. S4. Dye and finish the fabric obtained above. The dyeing and finishing process is as follows: greige fabric - flat-width washing - oil removal in a setting machine - double vacuum moisture absorption - initial setting - overflow dyeing - post-setting, to complete the processing. The fabric body is provided with a concave stripe layer and a convex layer, the concave stripe layer and the convex layer are spaced apart, the width of the convex layer is greater than the width of the concave stripe layer, and the fabric is woven with main yarn and padding yarn. During the weaving process, the fabric is woven in circles by the cylinder and needle plate of the corresponding weft knitting double-sided circular knitting machine. The weaving structure of the fabric body is as follows: the needle plate loops form a thin strip water-guiding concave strip layer, which is composed of 1 loop row and 2 loop columns as the basic cycle; the cylinder loops form a wide strip anti-permeability raised layer, which is composed of 1 loop row and 4 loop columns as the basic cycle. The main yarn is selected from 70D / 68F high-elastic matte nylon DTY, and the padding yarn is selected from 40D~70D super chlorine-resistant Lycra spandex. The fabric body is knitted using the following needle arrangement: rib stitch is used, the lower cylinder needles are arranged in a 1212 pattern, then one needle is removed, i.e., 1212X / 5 needles constitute one cycle; the upper cylinder needles are arranged as follows: first remove 3 needles, then 21, i.e., XXX21 / 5 needles constitute one cycle. When the fabric body is woven, one path is a complete cycle of a basic structure. The knitting method of the cylinder needles is as follows: the 1st, 2nd, 3rd and 4th needles knit in circles, and the 5th needle does not knit, forming a raised layer. The knitting method of the dial needles is as follows: the 1st, 2nd and 3rd needles do not knit, and the 4th and 5th needles knit in circles, forming a concave stripe layer.

2. The method for producing a free-flowing, ribbed swimsuit fabric according to claim 1, characterized in that, The fabric body is doffed in a dense doffing manner, with both the main yarn and the padding yarn falling in each row.

3. A method for producing a free-flowing, ribbed swimsuit fabric according to any one of claims 1 to 2, characterized in that, The concave layer has a width of 0.6~0.8mm and a depth of 0.2~0.4mm, while the protruding layer has a width of 1.8~2mm and a height of 0.2~0.4mm.

4. The method for producing a free-flowing, ribbed swimsuit fabric according to claim 3, characterized in that, When knitting the fabric body, the yarn feed per 100 stitches is 300~320mm for the main yarn and 104~110mm for the padding yarn.

5. The method for producing a free-flowing, ribbed swimsuit fabric according to claim 1, characterized in that, In step S4, the dual vacuum dehumidification is performed using a first vacuum pump and a second vacuum pump, with the second vacuum pump rotating at a higher speed than the first vacuum pump.

6. The method for producing a free-flowing, ribbed swimsuit fabric according to claim 5, characterized in that, The fabric obtained after the post-processing in step S4 has a width of 140cm and a weight of 200~250g / m². 2 The fabric density is 88~94 threads / inch (cpi) and 50~54 threads / inch (wpi).

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