Anti-curling pull frame rib fabric and preparation method thereof

Abstract

The present application relates to the technical field of textile fabric, and more particularly to a curling-preventing stretch rib fabric and a preparation method thereof, comprising the following steps: A. weaving a gray fabric by using a double-sided weaving method; B. sequentially performing loose fabric setting, boiling and bleaching, washing, neutralization and dyeing on the gray fabric to obtain a dyed gray fabric; and C. sequentially performing water washing and drying and soft setting on the dyed gray fabric to obtain the curling-preventing stretch rib fabric. The curling-preventing stretch rib fabric and the preparation method thereof are beneficial to eliminating curling and color difference under the premise of ensuring elasticity and comfortable hand feeling, so as to overcome the shortcomings in the prior art.

Description

Technical Field

[0001] This invention relates to the field of textile fabric technology, and in particular to a stretch rib fabric with anti-curling properties and its preparation method. Background Technology

[0002] Lycra rib fabric is a type of fabric that incorporates spandex ("Lycra" is a transliteration of the spandex brand Lycra) into a traditional rib knit structure. With its unique vertical stripe texture and high elasticity, it is widely used in the collars, cuffs, and hems of casual wear and is highly recognized in the market.

[0003] However, due to the influence of its weaving structure and raw material characteristics, such fabrics generally suffer from uneven distribution of yarn tension and internal stress between the front and back sides. During the weaving process, mechanical stretching forces the fabric to flatten it. However, in subsequent wet processing steps (such as dyeing and washing), the fabric is soaked in water, which gradually releases the deformation accumulated during the mechanical stretching process (mainly referring to the width expansion and longitudinal contraction caused when the fabric is forcibly flattened), allowing the fabric to return to its natural equilibrium state. This "deformation recovery" process makes the original tension and internal stress imbalance between the front and back sides of the fabric reappear, causing the left and right sides of the fabric to continuously curl and shrink towards the middle, resulting in obvious edge curling.

[0004] Meanwhile, the curling phenomenon directly leads to poor contact between the inside edge of the fabric and the dye solution. The dye in the dye solution has difficulty penetrating and adhering evenly to the inside edge of the fabric, causing the color of this part to be significantly lighter than the fully unfolded middle part. This results in color differences on the left, middle and right sides of the fabric, which seriously affects the overall appearance and quality of the garment.

[0005] Currently, although the industry has tried to improve the internal stress balance by adjusting the local weaving structure to suppress curling, the existing technology is mostly limited by traditional weaving methods and raw material ratios, so it is still difficult to completely eliminate curling and color difference problems. Moreover, the elasticity and hand comfort of the fabric after the curling phenomenon is improved are limited.

[0006] Therefore, existing stretch rib fabrics generally suffer from technical problems such as curling edges, color difference defects, poor elasticity, and limited hand comfort. Summary of the Invention

[0007] The purpose of this invention is to provide a stretch rib fabric with anti-rolling edge and its preparation method, which helps to eliminate the problems of rolling edge and color difference while ensuring elasticity and comfortable feel, thus overcoming the shortcomings of the prior art.

[0008] To achieve this objective, the present invention adopts the following technical solution: A method for preparing a stretch rib fabric with anti-curling properties includes the following steps: A. The greige fabric is woven using a double-sided weaving method; The greige fabric includes a main weaving area and an anti-curling weaving area, with the anti-curling weaving area located at both ends of the main weaving area; the double-sided weaving method includes a first weaving system and a second weaving system. In the main knitting area and the anti-curl knitting area, the spinning raw material of the upper needle plate and the lower needle cylinder of the first knitting system is the first cotton yarn; In the main knitting area, the spinning material of the upper needle plate of the second knitting system is a blended yarn composed of second cotton yarn and spandex; the spinning material of the lower needle cylinder of the second knitting system is second cotton yarn. In the anti-curl knitting zone, the spinning raw materials for the upper needle plate and lower needle cylinder of the second knitting system are both blended yarns composed of second cotton yarn and spandex. B. The greige fabric is subjected to loosening and fixing treatment, boiling and bleaching treatment, washing treatment, neutralization treatment and dyeing treatment in sequence to obtain dyed greige fabric; C. The dyed fabric is sequentially washed, dried, and softened to obtain a stretch rib fabric that prevents edge curling.

[0009] Further, in step A, the double-sided knitting method is used to knit the greige fabric as follows: the pattern of the greige fabric is composed of a pattern cycle with two horizontal paths and two sets of knitting systems. One horizontal path corresponds to one set of knitting systems. The two sets of knitting systems are the first knitting system and the second knitting system, respectively. Both the first knitting system and the second knitting system perform two-position needle selection, and each position corresponds to six knitting needle positions.

[0010] Furthermore, the six knitting needle positions are respectively the first knitting needle position, the second knitting needle position, the third knitting needle position, the fourth knitting needle position, the fifth knitting needle position, and the sixth knitting needle position; The upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position of the first knitting system and the second knitting system all participate in knitting.

[0011] Furthermore, in step A, the width of the anti-roll knitting area is 25 to 35 stitches.

[0012] Further, in step A, the count of both the first cotton yarn and the second cotton yarn is 15-25S; the denier of the spandex is 120-150D.

[0013] Furthermore, in step A, the lengths of both the first cotton yarn and the second cotton yarn are 30-35 cm; The spandex has a length of 10-12 cm.

[0014] Further, in step B, the specific method of the loose fabric fixing treatment is as follows: the fabric is placed in a relaxed state for more than 12 hours, and the loose fabric is placed under a pressure of 5-10 MPa for 3-4 hours. The specific method for the boiling and bleaching treatment is as follows: the greige fabric after the loose fabric fixing treatment is boiled and bleached in a boiling and bleaching solution, and the boiling and bleaching temperature is 95-100℃, and the boiling and bleaching time is 45-55min; the boiling and bleaching solution includes 1.5-2.5g / L refining agent, 0.3-0.8g / L stabilizer, 5-7g / L sodium hydroxide and 4-8g / L hydrogen peroxide; The specific method of the washing treatment is as follows: the greige fabric obtained after boiling and bleaching is washed with water at 70-90℃ for 8-15 minutes. The specific method for neutralization treatment is as follows: the blank after washing is placed in an acetic acid aqueous solution and soaked for 5 to 15 minutes, wherein the concentration of the acetic acid aqueous solution is 0.8 to 1.2 g / L and the temperature is 45 to 55°C. The specific method of the dyeing treatment is as follows: dye the neutralized fabric with a dye aqueous solution for 20-30 minutes, and the temperature of the dye aqueous solution is 60-80℃; then add sodium sulfate to the dye aqueous solution and stir for 15-25 minutes; continue to add sodium carbonate to the dye aqueous solution and stir for 25-35 minutes; finally, keep warm at 60-80℃ for 50-70 minutes.

[0015] Further, in step C, the specific method of the water washing and drying treatment is as follows: water washing is performed with warm water at 70-90℃, followed by water washing with cold water at 5-10℃. After washing, the water is placed in a drying room for drying treatment; wherein, the drying temperature of the drying treatment is 100-110℃. The specific method for the softening treatment is as follows: the dyed fabric after washing and drying is softened and shaped with a hydrophilic softening oil agent of 20-30 g / L, wherein the setting temperature for softening and shaping is 70-80℃ and the setting time is 5-10 min.

[0016] An anti-rolling stretch rib fabric is prepared using the above-described method for preparing anti-rolling stretch rib fabric.

[0017] The technical solution provided by this invention may include the following beneficial effects: 1. By directly weaving anti-curling weave zones at both ends of the greige fabric as the starting and ending edges, it is ensured that from the moment the weaving is completed, the two ends of the greige fabric itself have a symmetrically distributed spandex structure along the width direction. This structure balances the internal stress at both ends of the greige fabric, fundamentally eliminating the tendency to curl towards the middle. This not only results in a flat, curl-free fabric, but also ensures that the two ends of the greige fabric remain flat when immersed in the dye solution during subsequent dyeing processes. This guarantees uniform penetration and fixation of the dye on its surface and inside the dye solution, eliminating the direct cause of color difference (i.e., uneven contact of the dye solution due to curling at both ends of the greige fabric) from the source. This ensures that the final fabric has a uniform color along the width direction, guaranteeing a color-free fabric.

[0018] 2. In this technical solution, the first knitting system constructs the basic framework and skin-friendly layer of the fabric. The yarn used in both the upper needle plate and lower needle cylinder is soft, skin-friendly cotton yarn, providing stable structural support and a comfortable, close-fitting feel. The second knitting system is primarily responsible for imparting elasticity to the fabric. Specifically, in the main knitting area, the second knitting system provides the appropriate elasticity and resilience required for areas such as cuffs and hems through the unilateral distribution of spandex. In the anti-curl knitting area, the second knitting system maintains necessary elasticity while achieving anti-curl functionality through the symmetrical distribution of spandex. Together, the first and second knitting systems ensure that the stretch rib fabric possesses good elasticity, a comfortable feel, and a smooth selvage. Attached Figure Description

[0019] Figure 1 This is a weaving diagram of the main weaving area in the preparation method of the anti-rolling stretch rib fabric of the present invention.

[0020] Figure 2 This is a weaving diagram of the anti-rolling weaving area in the preparation method of the anti-rolling stretch rib fabric of the present invention.

[0021] Figure 3 This is a diamond-shaped diagram of the main weaving area in the preparation method of the anti-rolling stretch rib fabric of the present invention. Detailed Implementation

[0022] This technical solution provides a method for preparing anti-rolling stretch rib fabric, including the following steps: A. The greige fabric is woven using a double-sided weaving method; The greige fabric includes a main weaving area and an anti-curling weaving area, with the anti-curling weaving area located at both ends of the main weaving area; the double-sided weaving method includes a first weaving system and a second weaving system. In the main knitting area and the anti-curl knitting area, the spinning raw material of the upper needle plate and the lower needle cylinder of the first knitting system is the first cotton yarn; In the main knitting area, the spinning material of the upper needle plate of the second knitting system is a blended yarn composed of second cotton yarn and spandex; the spinning material of the lower needle cylinder of the second knitting system is second cotton yarn. In the anti-curl knitting zone, the spinning raw materials for the upper needle plate and lower needle cylinder of the second knitting system are both blended yarns composed of second cotton yarn and spandex. B. The greige fabric is subjected to loosening and fixing treatment, boiling and bleaching treatment, washing treatment, neutralization treatment and dyeing treatment in sequence to obtain dyed greige fabric; C. The dyed fabric is sequentially washed, dried, and softened to obtain a stretch rib fabric that prevents edge curling.

[0023] To address the common problems of curling edges, color difference, poor elasticity, and limited hand comfort in existing technologies, this technical solution proposes a method for preparing anti-curling stretch rib fabric, comprising three steps: A (weaving the greige fabric), B (loosening the greige fabric, boiling, bleaching, washing, neutralizing, and dyeing), and C (washing, drying, and setting to soften the fabric). By improving the weaving method, the resulting stretch rib fabric is free of color difference and curling edges, and possesses excellent elasticity and skin-friendly softness, thus eliminating curling edges and color difference problems while ensuring elasticity and a comfortable hand feel.

[0024] Specifically, this technical solution employs a double-sided weaving method to weave the fabric, resulting in a fabric comprising a main weaving area and an anti-curling weaving area along its width. In the main weaving area, the second weaving system uses a functional differentiation weaving: its upper needle plate uses a blended yarn composed of a second cotton yarn and spandex, while the lower needle cylinder uses only the second cotton yarn. This weaving method results in the spandex being distributed only on one side of the main weaving area, which can easily lead to uneven distribution of yarn tension and internal stress between the front and back sides of the fabric. This can easily become an inherent cause of selvage curling during subsequent processing and the resulting color difference in dyeing.

[0025] To address the aforementioned issues, this technical solution switches the second weaving system to a functionally symmetrical weaving mode within the anti-curling weaving zone. Both the upper needle plate and the lower needle cylinder utilize a blended yarn composed of a second cotton yarn and spandex. This method ensures that the spandex is symmetrically distributed across the cross-section of the anti-curling weaving zone, thereby structurally balancing the yarn tension and internal stress distribution between the front and back sides of the fabric.

[0026] Furthermore, by directly weaving anti-curling weave zones at both ends of the greige fabric as the starting and ending edges of the fabric, it is ensured that from the completion of weaving, the two ends of the greige fabric itself have a symmetrically distributed spandex structure along the width direction. This structure allows the internal stress at both ends of the greige fabric to reach equilibrium, fundamentally eliminating the tendency to curl towards the middle. This not only results in a flat, curl-free fabric, but also ensures that the two ends of the greige fabric can always be immersed in the dye bath in a flat state during subsequent dyeing processes. This guarantees the uniform penetration and fixation of the dye in the dye solution on its surface and inside, eliminating the direct cause of color difference (i.e., uneven contact of the dye bath caused by curling at both ends of the greige fabric) from the source. This ensures that the final fabric has a uniform color in the width direction, guaranteeing that the fabric has no color difference.

[0027] Secondly, in this technical solution, the first weaving system constructs the basic framework and skin-friendly layer of the fabric. The yarn used in both the upper needle plate and the lower needle cylinder is soft, skin-friendly cotton yarn, providing stable structural support and a comfortable, close-fitting feel. The second weaving system is primarily responsible for imparting elasticity to the fabric. Specifically, in the main weaving area, the second weaving system provides the appropriate elasticity and resilience required for areas such as cuffs and hems through the unilateral distribution of spandex. In the anti-curl weaving area, the second weaving system maintains necessary elasticity while achieving anti-curl functionality through the symmetrical distribution of spandex. Together, the first and second weaving systems ensure that the stretch rib fabric possesses good elasticity, a comfortable feel, and a smooth selvage.

[0028] It should be noted that the technical solution cannot adopt the technical solution in which the spinning raw materials of the upper needle plate and lower needle cylinder of the second knitting system in the main knitting area are all blended yarns composed of second cotton yarn and spandex, because: (1) Cost control: the price of spandex is significantly higher than that of cotton yarn. The spinning raw materials of the upper needle plate and lower needle cylinder of the second knitting system in the main knitting area are cotton yarns, which can save the amount of spandex used; (2) Stretch rib fabric is often used for cuffs and hems. Its elasticity requirement is concentrated on moderate fit and tightening. The existing design of the main knitting area has fully met the application requirements. There is no need to adopt the technical solution in which the spinning raw materials of the upper needle plate and lower needle cylinder of the second knitting system in the main knitting area are all blended yarns composed of second cotton yarn and spandex to obtain excessive elasticity; (3) The technical solution in which the spinning raw materials of the upper needle plate and lower needle cylinder of the second knitting system in the main knitting area are all blended yarns composed of second cotton yarn and spandex will make the fabric stiffer, heavier, and thicker (sometimes even rough), which is not conducive to maintaining the original softness and relatively thin feel of stretch rib fabric.

[0029] It should be further explained that, in the main knitting area, the spinning material of the upper needle plate of the second knitting system is a blended yarn composed of second cotton yarn and spandex, and the spinning material of the lower needle cylinder of the second knitting system is second cotton yarn. The method can be as follows: the raw material fed into the second knitting system is a blended yarn composed of second cotton yarn and spandex, but by setting a yarn guide in the main knitting area, the lower needle cylinder can only hook the second cotton yarn of the second knitting system, while the spandex is not guided to the lower needle cylinder. Thus, in the main knitting area, the spinning material of the upper needle plate of the second knitting system is a blended yarn composed of second cotton yarn and spandex, and the spinning material of the lower needle cylinder of the second knitting system is second cotton yarn. The specific implementation method is not limited here.

[0030] To further explain, in step A, the double-sided knitting method is used to knit the greige fabric as follows: the pattern of the greige fabric is composed of a pattern cycle with two horizontal paths and two sets of knitting systems. One horizontal path corresponds to one set of knitting systems. The two sets of knitting systems are the first knitting system and the second knitting system, respectively. Both the first knitting system and the second knitting system perform two-position needle selection, and each position corresponds to six knitting needle positions.

[0031] This technical solution uses a 38-inch double-sided loom to weave the fabric. The weaving pattern of the main weaving area is as follows: Figure 1 As shown, the weaving pattern of the anti-roll braided area is as follows: Figure 2 As shown, the diamond pattern of the main knitting area is as follows: Figure 3 As shown, its weaving principle is as follows: the pattern cycle adopts the first weaving system and the second weaving system. By changing the spinning material of the lower needle cylinder of the second weaving system, the main weaving area and the anti-curling weaving area are formed. The anti-curling weaving area is used to eliminate color difference and curling.

[0032] To further explain, the six knitting needle positions are the first knitting needle position, the second knitting needle position, the third knitting needle position, the fourth knitting needle position, the fifth knitting needle position, and the sixth knitting needle position; The upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position of the first knitting system and the second knitting system all participate in knitting.

[0033] This technical solution further defines the weaving method, precisely constructing a 2×2 rib knit structure. This configuration forms a stable structure with alternating rows of two front loops and two back loops. While ensuring the fabric obtains the unique vertical texture and excellent lateral elasticity of rib, it provides clear and fixed needle points for the subsequent differentiated allocation of spandex in the second system. This facilitates the integration and switching of the main knitting area and the anti-curl knitting area on the same fabric.

[0034] To further explain, in step A, the width of the anti-roll knitting area is 25 to 35 stitches.

[0035] This technical solution limits the width of the anti-curl braiding area, which not only fully accommodates a sufficient number of symmetrical structure coils to completely offset the internal stress of the fabric edge and ensure cutting accuracy, but also controls the anti-curl braiding area that requires special braiding patterns to a minimum, maximizing the maintenance of the efficient production rhythm of the main braiding area and reducing the extra consumption of expensive spandex raw materials in unnecessary areas, thereby achieving a balance between anti-curl performance and economy.

[0036] To further explain, in step A, the count of both the first cotton yarn and the second cotton yarn is 15-25S; the denier of the spandex is 120-150D.

[0037] This technical solution limits the count of the first and second cotton yarns and the denier of the spandex. The use of coarser cotton yarn provides sufficient yarn stiffness and coverage, which can effectively counteract the strong shrinkage force of high-denier spandex. Together, they construct a crisp, dense rib skeleton with strong elastic recovery. This helps to ensure that the fabric meets the high elasticity and durability required for the collar and cuffs, while avoiding insufficient support or excessive cost that may be caused by using too fine cotton yarn, thus achieving a balance between structural strength, elasticity and production cost.

[0038] It should be noted that yarn count refers to a multiple of a certain standard length of 1 pound of yarn at a standard moisture regain of 8.5%. The higher the yarn count, the finer the yarn. This standard length varies depending on the type of yarn: 840 yards for cotton and cotton-type blended yarns, 560 yards for finely sulfurized wool yarn, 256 yards for coarsely sulfurized cotton-wool yarn, and 300 yards for linen yarn. Denier refers to the weight in grams of 9000 meters of filament at a standard moisture regain of 8.5%. The higher the denier number, the coarser the yarn.

[0039] To further explain, in step A, the lengths of both the first cotton yarn and the second cotton yarn are 30-35 cm; The spandex has a length of 10-12 cm.

[0040] This technical solution limits the lengths of the first cotton yarn, the second cotton yarn, and the spandex. The longer cotton yarn ensures a fluffy fabric structure, a soft texture, and a lighter weight; while the shorter spandex yarn means that the spandex is stretched more during weaving, resulting in greater longitudinal elasticity and a tighter, more compact feel due to its elastic recovery. This combination of lengths is more conducive to achieving a comfortable, fluffy feel and high elastic recovery in the fabric.

[0041] To further explain, in step B, the specific method of the loose fabric fixing treatment is as follows: the fabric is placed in a relaxed state for more than 12 hours, and the loose fabric is placed under a pressure of 5-10 MPa for 3-4 hours. The specific method for the boiling and bleaching treatment is as follows: the greige fabric after the loose fabric fixing treatment is boiled and bleached in a boiling and bleaching solution, and the boiling and bleaching temperature is 95-100℃, and the boiling and bleaching time is 45-55min; the boiling and bleaching solution includes 1.5-2.5g / L refining agent, 0.3-0.8g / L stabilizer, 5-7g / L sodium hydroxide and 4-8g / L hydrogen peroxide; The specific method of the washing treatment is as follows: the greige fabric obtained after boiling and bleaching is washed with water at 70-90℃ for 8-15 minutes. The specific method for neutralization treatment is as follows: the blank after washing is placed in an acetic acid aqueous solution and soaked for 5 to 15 minutes, wherein the concentration of the acetic acid aqueous solution is 0.8 to 1.2 g / L and the temperature is 45 to 55°C. The specific method of the dyeing treatment is as follows: dye the neutralized fabric with a dye aqueous solution for 20-30 minutes, and the temperature of the dye aqueous solution is 60-80℃; then add sodium sulfate to the dye aqueous solution and stir for 15-25 minutes; continue to add sodium carbonate to the dye aqueous solution and stir for 25-35 minutes; finally, keep warm at 60-80℃ for 50-70 minutes.

[0042] Since spandex is used in the product, and spandex is an elastic fiber, in a preferred embodiment of this technical solution, the woven fabric needs to be relaxed for more than 12 hours to allow the fabric to relax back to a relatively natural state and have stable dimensions.

[0043] Furthermore, this technical solution optimizes the washing, neutralization, and dyeing processes. By limiting the washing temperature and time, it ensures effective washing and facilitates the removal of pretreatment solutions, preventing residues from affecting subsequent processes. Simultaneously, in the neutralization process, acetic acid is used to neutralize sodium hydroxide residue remaining on the fabric after washing, making the fabric neutral. It also complexes residual ferric ions from pretreatment and washing, preventing yellowing. Then, during the dyeing process, sodium carbonate ensures even dyeing, preventing uneven coloring and resulting in a bright final color with minimal excess dye, thus improving the dyeing effect of the fabric.

[0044] It should be noted that the refining agent in this technical solution can be refining agent DM-1155A from Guangdong Demei Fine Chemical Group Co., Ltd., and the stabilizer can be stabilizer DM-1401 from Guangdong Demei Fine Chemical Group Co., Ltd.

[0045] To further explain, in step C, the specific method of the water washing and drying process is as follows: the water is washed with warm water at 70-90°C, and then washed with cold water at 5-10°C. After washing, the water is placed in a drying room for drying. The drying temperature of the drying process is 100-110°C. The specific method for the softening treatment is as follows: the dyed fabric after washing and drying is softened and shaped with a hydrophilic softening oil agent of 20-30 g / L, wherein the setting temperature for softening and shaping is 70-80℃ and the setting time is 5-10 min.

[0046] This technical solution ensures the drying effect by limiting the specific methods of water washing and drying; at the same time, it limits the specific methods of setting the fabric to prevent it from hardening and maintain the softness of the fabric.

[0047] An anti-rolling stretch rib fabric is prepared using the above-described method for preparing anti-rolling stretch rib fabric.

[0048] This technical solution also proposes a method for preparing anti-rolling stretch rib fabric. The fabric prepared by this method is beneficial to eliminate the problems of rolling edges and color difference while ensuring elasticity and comfortable hand feel, thus meeting the needs of practical applications.

[0049] The technical solution of the present invention will be further illustrated below through specific embodiments.

[0050] In the embodiments and comparative examples of the present invention, the refining agent is DM-1155A from Guangdong Demei Fine Chemical Group Co., Ltd., and the stabilizer is DM-1401 from Guangdong Demei Fine Chemical Group Co., Ltd.

[0051] Example 1 A. The greige fabric is woven using a double-sided knitting method. The greige fabric includes a main knitting area and an anti-roll knitting area (30 stitches wide), with the anti-roll knitting area located at both ends of the main knitting area. Specifically, the double-sided knitting method involves a pattern loop consisting of two horizontal rows and two sets of knitting systems. Each horizontal row corresponds to one set of knitting systems, and the two sets of knitting systems are the first knitting system and the second knitting system. Both the first and second knitting systems employ two needle positions, each corresponding to six knitting needle positions. These six knitting needle positions are the first, second, third, fourth, fifth, and sixth knitting needle positions. The upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position in both the first and second knitting systems participate in the knitting. In the main knitting area and the anti-roll knitting area, the first knitting system... The yarn used in the upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position is 20S cotton yarn with a length of 32.5cm. In the main knitting area, the yarn used in the upper needle plate of the first knitting needle position and the upper needle plate of the second knitting needle position of the second knitting system is a blended yarn composed of 20S cotton yarn with a length of 32.5cm and spandex with a denier of 140D and a length of 10.5cm at a mass ratio of 1:1. The yarn used in the lower needle cylinder of the fifth knitting needle position and the lower needle cylinder of the sixth knitting needle position of the second knitting system is 20S cotton yarn with a length of 30cm. In the anti-curl knitting area, the yarn used in the upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position of the second knitting system is a blended yarn composed of cotton yarn and spandex. B. The greige fabric is subjected to a series of treatments, including loosening and setting, scalding and bleaching, washing, neutralization, and dyeing, to obtain dyed greige fabric. The specific method for loosening and setting the greige fabric is as follows: the fabric is placed in a relaxed state for 15 hours, and then placed under a pressure of 6 MPa for 4 hours. The specific method for scalding and bleaching is as follows: the fabric after loosening and setting is scalded and bleached in a scalding and bleaching solution at a temperature of 100℃ for 50 minutes. The scalding and bleaching solution includes 2 g / L refining agent, 0.5 g / L stabilizer, 6 g / L sodium hydroxide, and 5 g / L hydrogen peroxide. The specific method for washing and bleaching is as follows: The process is as follows: The greige fabric obtained after scalding and bleaching is washed with water at 80℃ for 12 minutes; the neutralization treatment involves immersing the washed greige fabric in an acetic acid aqueous solution at a concentration of 1 g / L and a temperature of 50℃ for 10 minutes; the dyeing treatment involves dyeing the neutralized greige fabric with a dye aqueous solution at a temperature of 70℃ for 25 minutes; then adding sodium sulfate to the dye aqueous solution and stirring for 20 minutes; continuing to add sodium carbonate to the dye aqueous solution and stirring for 30 minutes; finally, maintaining the temperature at 70℃ for 60 minutes. C. The dyed fabric is subjected to washing, drying, and softening treatment in sequence to obtain a stretch rib fabric with anti-curling properties. The specific method of washing and drying is as follows: wash with warm water at 80℃, then wash with cold water at 8℃. After washing, place it in a drying room for drying treatment. The drying temperature is 100℃. The specific method of softening treatment is as follows: soften and shape the dyed fabric after washing and drying with 20g / L of hydrophilic softening oil. The setting temperature for softening and shaping is 80℃, and the setting time is 5min. The hydrophilic softening oil is 8011 from Guangzhou Zhuangjie Chemical Co., Ltd.

[0052] Example 2 A. The greige fabric is woven using a double-sided knitting method. The greige fabric includes a main knitting area and an anti-roll knitting area (25 stitches wide), with the anti-roll knitting area located at both ends of the main knitting area. Specifically, the double-sided knitting method involves a pattern loop consisting of two horizontal rows and two sets of knitting systems. Each horizontal row corresponds to one set of knitting systems, and the two sets of knitting systems are the first knitting system and the second knitting system. Both the first and second knitting systems employ two needle positions, each corresponding to six knitting needle positions. These six knitting needle positions are the first, second, third, fourth, fifth, and sixth knitting needle positions. The upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position in both the first and second knitting systems participate in the knitting. Within the main knitting area and the anti-roll knitting area, the first knitting... The yarn used in the upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position of the system is 15S cotton yarn with a length of 30cm. In the main knitting area, the yarn used in the upper needle plate of the first knitting needle position and the upper needle plate of the second knitting needle position of the second knitting system is a blended yarn composed of 15S cotton yarn with a length of 30cm and spandex with a denier of 120D and a length of 10cm at a mass ratio of 8:7. The yarn used in the lower needle cylinder of the fifth knitting needle position and the lower needle cylinder of the sixth knitting needle position of the second knitting system is 15S cotton yarn with a length of 30cm. In the anti-curl knitting area, the yarn used in the upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position of the second knitting system is a blended yarn composed of cotton yarn and spandex. B. The greige fabric is subjected to a series of treatments, including loosening and setting, boiling and bleaching, washing, neutralization, and dyeing, to obtain dyed greige fabric. The specific method for loosening and setting the greige fabric is as follows: the fabric is placed in a relaxed state for 15 hours, and then placed under a pressure of 10 MPa for 3 hours. The specific method for boiling and bleaching is as follows: the fabric after loosening and setting is boiled and bleached in a bleaching solution at a temperature of 95℃ for 45 minutes. The bleaching solution includes 1.5 g / L refining agent, 0.3 g / L stabilizer, 7 g / L sodium hydroxide, and 8 g / L hydrogen peroxide. The specific method for washing and bleaching is as follows: The method is as follows: After boiling and bleaching, the greige fabric is washed with water at 90℃ for 8 minutes; the neutralization treatment is as follows: the greige fabric after washing is soaked in an acetic acid aqueous solution with a concentration of 0.9 g / L and a temperature of 48℃ for 5 minutes; the dyeing treatment is as follows: the neutralized greige fabric is dyed with a dye aqueous solution for 24 minutes with a dye aqueous solution temperature of 65℃; then sodium sulfate is added to the dye aqueous solution and stirred for 17 minutes; sodium carbonate is added to the dye aqueous solution and stirred for 28 minutes; finally, it is kept at 60℃ for 70 minutes. C. The dyed fabric is subjected to washing, drying, and softening treatment in sequence to obtain a stretch rib fabric with anti-rolling edge. The specific method of washing and drying is as follows: wash with warm water at 70℃, then wash with cold water at 5℃. After washing, place it in a drying room for drying treatment. The drying temperature is 100℃. The specific method of softening treatment is as follows: soften and shape the dyed fabric after washing and drying with 20g / L of hydrophilic softening oil. The setting temperature for softening and shaping is 70℃, and the setting time is 8min. The hydrophilic softening oil is 8011 from Guangzhou Zhuangjie Chemical Co., Ltd.

[0053] Example 3 A. The greige fabric is woven using a double-sided knitting method. The greige fabric includes a main knitting area and an anti-roll knitting area (35 stitches wide), with the anti-roll knitting area located at both ends of the main knitting area. Specifically, the double-sided knitting method involves a pattern loop consisting of two horizontal rows and two sets of knitting systems. Each horizontal row corresponds to one set of knitting systems, and the two sets of knitting systems are the first knitting system and the second knitting system. Both the first and second knitting systems employ two needle positions, each corresponding to six knitting needle positions. These six knitting needle positions are the first, second, third, fourth, fifth, and sixth knitting needle positions. The upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position in both the first and second knitting systems participate in the knitting. Within the main knitting area and the anti-roll knitting area, the first knitting... The yarn used in the upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position of the system is a first cotton yarn with a count of 25S and a length of 35cm. In the main knitting area, the yarn used in the upper needle plate of the first knitting needle position and the upper needle plate of the second knitting needle position of the second knitting system is a blended yarn composed of second cotton yarn with a count of 25S and a length of 35cm and spandex with a denier of 150D and a length of 12cm at a mass ratio of 4:3. The yarn used in the lower needle cylinder of the fifth knitting needle position and the lower needle cylinder of the sixth knitting needle position of the second knitting system is a second cotton yarn with a count of 25S and a length of 35cm. In the anti-curl knitting area, the yarn used in the upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position of the second knitting system is a blended yarn composed of second cotton yarn and spandex. B. The greige fabric is subjected to a series of treatments, including loosening and setting, scalding and bleaching, washing, neutralization, and dyeing, to obtain dyed greige fabric. The specific method for loosening and setting the greige fabric is as follows: the fabric is placed in a relaxed state for 16 hours, and then placed under a pressure of 10 MPa for 3 hours. The specific method for scalding and bleaching is as follows: the fabric after loosening and setting is scalded and bleached in a scalding and bleaching solution at a temperature of 98℃ for 53 minutes. The scalding and bleaching solution includes 2.5 g / L refining agent, 0.6 g / L stabilizer, 7 g / L sodium hydroxide, and 8 g / L hydrogen peroxide. The specific method for washing and bleaching is as follows. The process is as follows: The greige fabric obtained after scalding and bleaching is washed with water at 90℃ for 8 minutes; the neutralization treatment involves immersing the washed greige fabric in an acetic acid aqueous solution (0.8 g / L) at 55℃ for 12 minutes; the dyeing treatment involves dyeing the neutralized greige fabric with a dye aqueous solution at 60℃ for 30 minutes; then adding sodium sulfate to the dye aqueous solution and stirring for 25 minutes; continuing to add sodium carbonate and stirring for 32 minutes; finally, maintaining the temperature at 80℃ for 50 minutes. C. The dyed fabric is subjected to washing, drying, and softening treatment in sequence to obtain a stretch rib fabric with anti-curling properties. The specific method of washing and drying is as follows: wash with warm water at 90℃, then wash with cold water at 10℃. After washing, place it in a drying room for drying treatment. The drying temperature is 110℃. The specific method of softening treatment is as follows: soften and shape the dyed fabric after washing and drying with 30g / L of hydrophilic softening oil. The setting temperature for softening and shaping is 80℃, and the setting time is 5min. The hydrophilic softening oil is 8011 from Guangzhou Zhuangjie Chemical Co., Ltd.

[0054] Comparative Example 1 The preparation method and raw materials of this comparative example are the same as those of Comparative Example 1. The difference is that this comparative example lacks the anti-rolling braided area and only has the main braided area.

[0055] The fabrics prepared in the examples and comparative examples were subjected to performance tests for longitudinal tensile elastic recovery rate and transverse tensile elastic recovery rate using the "FZ / T 70006-2022 Test Method for Tensile Elastic Recovery Rate of Knitted Fabrics".

[0056] The comfort of the fabrics prepared in the examples and comparative examples was assessed by touch, and the color difference and curling of the fabrics were observed with the naked eye.

[0057] Table 1. Performance test results of fabrics obtained by different preparation methods in the examples and comparative examples.

[0058] As can be seen from the performance test results of the various embodiments and comparative examples in Table 1 above, the stretch rib fabric prepared by the method for preparing an anti-curling stretch rib fabric has a longitudinal elastic elongation >50% and a transverse elastic elongation >150%, and is soft and skin-friendly to the touch, with no color difference and no curling. The longitudinal and transverse elastic elongations characterize elasticity. Therefore, the fabric obtained by this technical solution is beneficial in eliminating curling and color difference problems while ensuring elasticity and a comfortable feel, thus meeting practical application requirements.

[0059] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A method for preparing a stretch rib fabric with anti-curling properties, characterized in that, Includes the following steps: A. The greige fabric is woven using a double-sided weaving method; The greige fabric includes a main weaving area and an anti-curling weaving area, with the anti-curling weaving area located at both ends of the main weaving area; the double-sided weaving method includes a first weaving system and a second weaving system. In the main knitting area and the anti-curl knitting area, the spinning raw material of the upper needle plate and the lower needle cylinder of the first knitting system is the first cotton yarn; In the main knitting area, the spinning material of the upper needle plate of the second knitting system is a blended yarn composed of second cotton yarn and spandex; the spinning material of the lower needle cylinder of the second knitting system is second cotton yarn. In the anti-curl knitting zone, the spinning raw materials for the upper needle plate and lower needle cylinder of the second knitting system are both blended yarns composed of second cotton yarn and spandex. B. The greige fabric is subjected to loosening and fixing treatment, boiling and bleaching treatment, washing treatment, neutralization treatment and dyeing treatment in sequence to obtain dyed greige fabric; C. The dyed fabric is sequentially washed, dried, and softened to obtain a stretch rib fabric that prevents edge curling.

2. The method for preparing an anti-rolling stretch rib fabric according to claim 1, characterized in that, In step A, the double-sided knitting method is used to knit the greige fabric. Specifically, the pattern of the greige fabric is composed of two horizontal paths and two sets of knitting systems. One horizontal path corresponds to one set of knitting systems. The two sets of knitting systems are the first knitting system and the second knitting system. Both the first knitting system and the second knitting system have two needle positions, and each needle position corresponds to six knitting needle positions.

3. The method for preparing an anti-rolling stretch rib fabric according to claim 2, characterized in that, The six knitting needle positions are the first knitting needle position, the second knitting needle position, the third knitting needle position, the fourth knitting needle position, the fifth knitting needle position, and the sixth knitting needle position; The upper needle plate of the first knitting needle position, the upper needle plate of the second knitting needle position, the lower needle cylinder of the fifth knitting needle position, and the lower needle cylinder of the sixth knitting needle position of the first knitting system and the second knitting system all participate in knitting.

4. The method for preparing an anti-rolling stretch rib fabric according to claim 1, characterized in that, In step A, the width of the anti-roll knitting area is 25 to 35 stitches.

5. The method for preparing an anti-rolling stretch rib fabric according to claim 1, characterized in that, In step A, the count of both the first cotton yarn and the second cotton yarn is 15-25S; the denier of the spandex is 120-150D.

6. The method for preparing an anti-rolling stretch rib fabric according to claim 1, characterized in that, In step A, the lengths of both the first cotton yarn and the second cotton yarn are 30-35 cm; The spandex has a length of 10-12 cm.

7. The method for preparing an anti-rolling stretch rib fabric according to claim 1, characterized in that, In step B, the specific method of the loose fabric fixing treatment is as follows: the fabric is placed in a relaxed state for more than 12 hours, and the loose fabric is placed under a pressure of 5-10 MPa for 3-4 hours. The specific method for the boiling and bleaching treatment is as follows: the greige fabric after the loose fabric fixing treatment is boiled and bleached in a boiling and bleaching solution, and the boiling and bleaching temperature is 95-100℃, and the boiling and bleaching time is 45-55min; the boiling and bleaching solution includes 1.5-2.5g / L refining agent, 0.3-0.8g / L stabilizer, 5-7g / L sodium hydroxide and 4-8g / L hydrogen peroxide; The specific method of the washing treatment is as follows: the greige fabric obtained after boiling and bleaching is washed with water at 70-90℃ for 8-15 minutes. The specific method for neutralization treatment is as follows: the blank after washing is placed in an acetic acid aqueous solution and soaked for 5 to 15 minutes, wherein the concentration of the acetic acid aqueous solution is 0.8 to 1.2 g / L and the temperature is 45 to 55°C. The specific method of the dyeing treatment is as follows: dye the neutralized fabric with a dye aqueous solution for 20-30 minutes, and the temperature of the dye aqueous solution is 60-80℃; then add sodium sulfate to the dye aqueous solution and stir for 15-25 minutes; continue to add sodium carbonate to the dye aqueous solution and stir for 25-35 minutes; finally, keep warm at 60-80℃ for 50-70 minutes.

8. The method for preparing an anti-rolling stretch rib fabric according to claim 1, characterized in that, In step C, the specific method for the water washing and drying process is as follows: wash with warm water at 70-90°C, then wash with cold water at 5-10°C. After washing, place the product in a drying room for drying. The drying temperature for the drying process is 100-110°C. The specific method for the softening treatment is as follows: the dyed fabric after washing and drying is softened and shaped with a hydrophilic softening oil agent of 20-30 g / L, wherein the setting temperature for softening and shaping is 70-80℃ and the setting time is 5-10 min.

9. A type of anti-rolling stretch rib fabric, characterized in that, It is prepared using the method for preparing anti-rolling stretch rib fabric according to any one of claims 1 to 8.

Images