A method for knitting a high-elasticity roll-resistant knitted fabric and the knitted fabric
By using a double-sided integrated knitting structure and a moisture-sensitive balanced two-component ply yarn design, the problem of curling edges in high-elasticity knitted fabrics is solved, achieving long-lasting anti-curling and improved breathability throughout the entire life cycle. It is compatible with existing production equipment and suitable for reversible garments.
Patent Information
- Application Number
- CN202610487697.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-14
- Publication Date
- 2026-06-16
AI Technical Summary
Existing high-elasticity knitted fabrics are prone to curling during weaving, dyeing, cutting, sewing and wearing. Moreover, existing technologies cannot effectively solve problems such as curling failure, breathability and sewing adaptability throughout the entire life cycle, and cannot meet the needs of turnable garments.
It adopts a double-sided integrated knitting structure, and through the design of interlocking-tucked transition zone and mirror anti-rolling zone, combined with moisture-sensitive balanced two-component ply yarn and segmented weft insertion structure, it achieves continuous stress transmission, internal stress balance and improved air permeability, and is compatible with existing production equipment.
It achieves long-lasting anti-rolling throughout the entire life cycle, improves the fabric's service life and breathability, meets the needs of reversible garments, and improves mass production efficiency and fabric performance stability.
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Figure CN122215141A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of knitting and textile technology, specifically a weaving method and a knitted fabric for a high-elasticity anti-rolling knitted fabric. Background Technology
[0002] High-elasticity knitted fabrics, due to their excellent stretching and deformation capabilities, close fit, and adaptability to movement, have become core basic fabrics in the fields of close-fitting clothing, sportswear, and medical protective clothing. Among them, weft-knitted fabrics, with spandex core-spun yarn as the core raw material, occupy more than 90% of the high-elasticity knitted fabric market share due to their advantages of high production efficiency, wide range of adjustable elasticity, and soft hand feel. However, the inherent asymmetrical loop structure of weft-knitted high-elasticity knitted fabrics makes them prone to edge curling during weaving, dyeing, cutting, sewing, and wearing. This problem not only seriously affects the cutting accuracy, sewing efficiency, and garment pattern stability of the fabric, but also leads to problems such as edge lifting, marks, and poor fit during wear. This is a common pain point that has long existed in the industry and is difficult to eradicate.
[0003] In existing technologies, numerous solutions have been disclosed to address the curling problem of knitted fabrics. The core ideas mainly fall into two categories: one is to prevent curling through post-dyeing and finishing treatments, such as high-temperature setting and edge locking, resin coating for edge fixation, and overlocking of fabric edges. While these solutions can improve the curling problem in the dry state in the short term, they severely damage the elasticity, breathability, and hand feel of the fabric edges. Moreover, after repeated washing, the coating peels off, the setting effect fails, and the curling problem reappears. The other approach is to solve the curling problem from the root of the weaving process through an integrated knitted structure design, which is also the mainstream research and development direction in the industry at present.
[0004] For example, Chinese invention patent CN220703956U (hereinafter referred to as prior art 1) discloses an anti-rolling stretch knitted fabric. The fabric is an integral knitted structure, which is divided into a main body with a plain weave structure in the middle and an anti-rolling edge part with a jacquard structure on both sides along the width direction. The edge jacquard structure restricts the deformation of the fabric edge, achieving a dry anti-rolling edge effect without the need for secondary edge binding, thus solving the problem of elasticity loss caused by traditional finishing methods. However, this solution still has several unmentioned and unresolved core technical defects in actual mass production and application: First, the transition between the main body and the anti-rolling edge is achieved only through a simple gradual change in coil density. The abrupt change between the two structures leads to discontinuous stress transmission within the fabric. During mass production, tension fluctuations in the zoned yarn feeding of the double-sided circular knitting machine easily cause uneven coil size and loose structure in the transition zone. After 30 household washes and stretching cycles, the transition zone is the first to show arching, yarn unraveling, or even breakage, shortening the garment's lifespan by more than 50% compared to the main body. Second, this solution only focuses on the initial anti-rolling edge effect when the fabric is dry at the factory, completely ignoring the significant asynchronous nature of the wet heat shrinkage of spandex fibers and the wet expansion of cellulose fibers in household washing scenarios. This results in an imbalance in fiber shrinkage and internal stress structure within the anti-rolling edge after 5 washes. First, the curling rate has soared from less than 3% to over 15%, completely losing its anti-curling effect. This is the number one customer complaint in the mass production of intimate apparel. Second, the anti-curling part uses a full-width dense zigzag structure, which results in the bending stiffness of the edge area being more than twice that of the main body. During garment sewing, the difference in fabric feed between the edge area and the main body area during the presser foot feeding process of the sewing machine exceeds 10%, which easily leads to problems such as sewing slippage, fabric edge wrinkling, and fabric curling. The factory needs to add extra manual trimming and secondary local shaping processes, reducing mass production efficiency by more than 30%. This is a core blind spot where fabric development and garment manufacturing processes are completely disconnected. Third, this solution is a single-sided knitted structure, which cannot solve the problem of asymmetrical curling and inconsistent elasticity on the two sides of double-sided high-elastic fabrics. It cannot meet the usage requirements of yoga wear, sports bras, and other reversible garments.
[0005] For example, Chinese invention patent with authorization announcement number CN104060386B (hereinafter referred to as prior art 2) discloses a device and method for preventing edge curling of weft-knitted single-sided fabric. By adding a hanging yarn guide to the circular knitting machine, weaving weft yarn into the edge of the fabric, the weft yarn restricts the lateral deformation of the edge loops, thus achieving edge curling prevention from the level of weaving equipment. However, this solution has significant limitations in mass production and technical shortcomings: First, it requires modification of existing general-purpose knitting equipment, adding dedicated yarn guide components and yarn feeding systems, which cannot be adapted to more than 90% of the general-purpose double-sided circular knitting machines used in domestic knitting factories. The modification cost for a single machine exceeds 50,000 yuan, making large-scale promotion extremely difficult. Second, this solution only mechanically restricts edge loop deformation through continuous weft yarns, failing to address core pain points such as fiber stress imbalance after washing, stress concentration in the transition zone, and incompatibility with sewing processes. The anti-curling effect is extremely poor in the long term, and the anti-curling effect rapidly diminishes after multiple washes due to weft yarn displacement. Third, the full-width continuous weft structure causes the breathability of the edge area to decrease by more than 70% compared to the central area. When worn close to the skin, the edge area is prone to problems such as stuffiness and skin allergies, which cannot meet the high breathability requirements of summer close-fitting clothing and medical elastic bandages.
[0006] In addition, Chinese invention patent with authorization announcement number CN222043497U discloses a lightweight jacquard mesh fabric with anti-rolling edge, which achieves anti-rolling edge through weft weaving in the edge area. However, this solution is a warp-knitted jacquard fabric, and its application is limited to shoe material mesh fabric. It does not have a high elasticity design and cannot meet the needs of weft-knitted high elastic close-fitting clothing. It also has the inherent defect that anti-rolling edge performance and breathability cannot be achieved at the same time.
[0007] In summary, all existing publicly available technologies focus on the surface requirement of "preventing edge curling in the dry state when the fabric leaves the factory," completely ignoring several long-standing but unaddressed technical blind spots in the entire chain of high-elastic knitted fabrics, from "spinning-weaving-dyeing and finishing-garment sewing-consumer lifecycle." Furthermore, the industry has developed an inherent technical bias that "preventing edge curling requires sacrificing elasticity, breathability, and sewing efficiency." The specific core technical issues are as follows: First, there is the issue of stress concentration and service failure at the zone boundaries. Existing zone anti-rolling solutions all use simple, gradual transition structures. Abrupt changes in the coil structure lead to discontinuous stress transmission. Tension fluctuations during mass production can easily cause structural defects in the transition zone, leading to failure after repeated washing and stretching, and significantly shortening the fabric's lifespan. This problem has never been specifically solved by existing technologies.
[0008] Secondly, the common industry pain point of edge curling rebound after wet washing. Existing technologies only focus on the initial anti-curling effect in the dry state, without considering the asynchronous shrinkage / expansion of fibers in the dry and wet states. This leads to an imbalance of internal stress in the fabric after multiple washes, resulting in the complete loss of the anti-curling effect. This is a long-standing problem in the industry without an effective solution.
[0009] Third, there is the incompatibility between the anti-rolling zone and garment sewing processes. Existing anti-rolling solutions all improve the anti-rolling effect by using denser coils and continuous weft insertion, resulting in a huge difference in bending stiffness and fabric feeding friction between the edge area and the center area. This leads to slippage, wrinkling, and curling during sewing, requiring additional manual processes and significantly reducing mass production efficiency. This is a core blind spot where fabric development and garment manufacturing are disconnected.
[0010] Fourth, the issue of edge curling / elasticity asymmetry on both sides of double-sided fabrics. The existing double-sided anti-curling fabrics have non-symmetrical coil structures on both sides, resulting in a significant difference in heat shrinkage rates between the two sides during setting. This leads to the fabric being "anti-curling on the front but curling on the back," with a difference in elasticity exceeding 15%. This makes it unsuitable for the use of reversible garments, and this detail has been completely ignored by all existing technologies.
[0011] Fifth, there is an irreconcilable contradiction between anti-rolling performance and breathability. Existing technologies generally suffer from the technical bias that "anti-rolling requires denser coils and restricted deformation," which leads to a significant decrease in the breathability of the anti-rolling area. This makes it impossible to simultaneously meet the dual requirements of long-lasting anti-rolling and high breathability, thus limiting the application scenarios of the fabric.
[0012] Therefore, the industry urgently needs to develop a high-elasticity knitted fabric that requires no equipment modification, is compatible with existing general production lines, solves the pain points of the entire chain from the bottom up, and at the same time takes into account long-term anti-rolling, high elasticity, high breathability, sewing adaptability, and long service life, as well as a corresponding weaving method that can be mass-produced. Summary of the Invention
[0013] The purpose of this invention is to provide a weaving method and a knitted fabric for a high-elasticity anti-rolling knitted fabric. Through the coordinated innovation of materials, structure and process, it completely solves all the core pain points of the existing technology. At the same time, it does not require additional equipment investment, is fully compatible with the existing general production lines of knitting factories, and can directly achieve large-scale mass production.
[0014] The technical solution adopted in this invention is as follows: A high-elasticity, all-scenario anti-rolling knitted fabric, wherein the fabric is a double-sided one-piece knitted structure, and is divided into a central high-elasticity functional area, an interlocking transition area symmetrically distributed on both sides of the central high-elasticity functional area, and a mirror anti-rolling area symmetrically distributed on the outside of the interlocking transition area. The central high-elasticity functional area is woven from the first composite elastic yarn using an elastic tuck-plain knit composite structure. The interlocking transition zone has 3-5 coil rows, each row forming a set of interlocking-coil interlocking pairs. The interlocking-coil interlocking pairs are formed by the coil suspension arc of the central high elastic functional area hooking the interlocking coil settlement arc of the mirror anti-rolling area, forming an integrated interlocking structure with continuous stress transmission. The mirrored anti-rolling edge area is woven from moisture-sensitive balanced bicomponent ply yarn in a 1:1 mirrored symmetrical double-sided interlocking structure. The mirrored symmetrical double-sided interlocking structure has a segmented weft insertion structure, and every other loop has a tufted hollow hole.
[0015] Preferably, the moisture-sensitive balanced bicomponent ply yarn is formed by twisting a core layer, a middle layer, and an outer layer from the inside out; the core layer is 20D-40D spandex core-spun yarn, and the outer layer of the core-spun yarn is a blended yarn of cotton and viscose; the middle layer is high-moisture-swelling viscose staple fiber yarn with a moisture expansion rate ≥18%; the outer layer is low-shrinkage polyester filament with a boiling water shrinkage rate ≤1.5%, and the ply twist is 600-1000 twists / meter.
[0016] Preferably, in the mirror-symmetric double-sided interlocking structure, the deviation of the coil height, coil length, and yarn feeding tension of the cylinder coil and the needle plate coil is ≤2%, and the weft yarn is sandwiched in the middle layer between the needle plate coil and the cylinder coil, and is not exposed on the front and back surfaces of the fabric.
[0017] Preferably, the segmented weft insertion structure is as follows: one weft insertion yarn is set every two looped weft rows along the longitudinal direction of the fabric, and one empty weft insertion row is spaced between two adjacent weft insertion yarns. The loop length and bending stiffness of the empty weft insertion row deviate from the loop length of the high elasticity functional area in the middle by ≤3%.
[0018] Preferably, the loop-shaped hollow hole is formed by the suspended arc of the loop coil, with a hole diameter of 0.8-1.2mm. The weft yarn runs through the coil longitudinally on both sides of the hollow hole to lock the coil structure.
[0019] Preferably, the first composite elastic yarn is a core-sheath structure bicomponent composite yarn, with the core layer being 20D-70D spandex filaments and the sheath layer being a parallel composite short fiber wrapped yarn of polypropylene terephthalate and polyethylene terephthalate, with a wrapping degree of 800-1200 twists / meter.
[0020] Preferably, the width of one side of the mirror anti-rolling zone is 5%-15% of the total fabric width, the width of one side of the interlocking transition zone is 1%-3% of the total fabric width, and the width of the central high-elasticity functional zone is 70%-90% of the total fabric width; the lateral and longitudinal rolling rates of the fabric in the dry state and after 50 washes are both ≤2%, and the difference in elastic elongation between the front and back sides is ≤3%.
[0021] A method for weaving a highly elastic, all-scenario anti-rolling knitted fabric includes the following steps: S1 yarn preparation: Prepare the first composite elastic yarn and the moisture-sensitive balanced bicomponent ply yarn, and pre-shrink and set them and humidify them for balancing treatment respectively; S2 weaving process settings: double-sided circular knitting is adopted, the needle count ratio of the cylinder to the needle plate is 1:1, the machine size is 24G-32G, the central high elastic functional area, the interlocking transition area, and the mirror anti-rolling edge area are divided along the fabric horizontally, and the knitting triangle track and the zoned yarn feeding system are set for the corresponding zones. S3 Zone Integrated Weaving: The central high-elasticity functional zone uses the first composite elastic yarn to weave an elastic loop-plain knit composite structure; the interlocking transition zone adjusts the triangular trajectory to form an interlocking-loop interlocking structure; the mirror anti-rolling zone uses moisture-sensitive balanced double-component ply yarn to weave a 1:1 mirror symmetrical double-sided interlocking structure, and simultaneously starts the segmented weft insertion feeding program to form a segmented weft insertion structure and loop-type hollow holes; S4 Two-Step Patterning and Finishing: The woven fabric is pre-shrinked, washed, wet-state pre-setting, dry-state heat setting, and softening treatment in sequence to obtain the finished fabric.
[0022] Preferably, in step S3, the yarn feeding tension in the interlocking transition zone gradually changes linearly in the transverse direction, and the yarn feeding tension change between adjacent coils is ≤0.2cN; the coil length in the middle high-elasticity functional zone is 2.8-3.6mm, and the yarn feeding tension is 3-5cN; the coil length in the mirror anti-rolling zone is 2.7-3.5mm, and the yarn feeding tension is 3.5-5.5cN.
[0023] Preferably, in step S4, the temperature of the wet pre-setting is 80-100℃, the overfeed rate is 10%-15%, and the machine speed is 10-15m / min; the temperature of the dry heat setting is 160-180℃, the overfeed rate is 8%-12%, and the machine speed is 15-25m / min; after setting, the transverse shrinkage rate of the fabric is ≤4%, and the longitudinal shrinkage rate is ≤2%.
[0024] The beneficial effects of this invention are as follows: 1. This invention features a pioneering interlocking-loop interlocking transition structure, completely resolving the industry blind spot of stress concentration and service failure at the boundary of existing technologies. Abandoning the traditional gradual transition approach, this invention achieves 100% continuous stress transfer from the center to the edge through an integrated interlocking structure of the loop coil suspension arc and the interlocking coil settlement arc. There are no stress concentration points, and the fabric shows no arching or unraveling after 50 washes and stretches. The breaking strength of the transition zone is increased by more than 80%, significantly extending the garment's service life. Furthermore, it can be achieved simply by modifying the triangular trajectory of a circular knitting machine, requiring no equipment modifications.
[0025] 2. This invention pioneers a moisture-sensitive internal stress-balancing bicomponent ply yarn, overcoming the common industry pain point of post-wash edge curling rebound in existing technologies. Through a customized three-layer ply yarn, the invention achieves low-shrinkage yarn providing an anti-curling skeleton in the dry state, while the high-swelling viscose precisely counteracts the wet-state heat shrinkage of the spandex during wet washing. This ensures that the internal stress in the edge area remains balanced in both dry and wet states. The fabric's lateral and longitudinal curling rates are ≤2% in both the dry state and after 50 household washes, achieving long-lasting anti-curling throughout its entire lifespan and completely solving the industry-wide problem of post-wash edge curling rebound.
[0026] 3. An innovative segmented weft insertion structure solves the mass production pain point of incompatibility between the existing anti-rolling edge area and garment sewing processes. This invention abandons the idea of continuous weft insertion across the entire width, and through spaced empty weft insertion rows, the bending stiffness and fabric feeding friction of the edge area and the center area are perfectly matched. There is no slippage, wrinkling, or curling during sewing, and no additional manual trimming process is required. Mass production efficiency is increased by more than 35%, and it can be achieved simply by modifying the weft insertion feeding program. It is compatible with all existing knitting equipment.
[0027] 4.1:1 mirror-symmetric double-sided interlocking structure solves the blind spot of detail blind spots in existing double-sided anti-rolling fabrics, such as the asymmetry of elasticity on both sides. This invention, through a completely mirror-symmetric coil structure of the needle plate / cylinder, ensures 100% mutual cancellation of inward stress on both sides of the fabric, eliminating the tendency for rolling on either side. The difference in elastic elongation between the two sides is ≤3%, making it suitable for all scenarios involving reversible garments, expanding the application boundaries of the fabric, and achieving the desired effect in a single setting, improving setting efficiency by 50%.
[0028] 5. The interlocking, hollowed-out edge structure breaks the inherent technical bias that "anti-rolling edges must sacrifice breathability." This invention, through its hollowed-out hole design, increases the breathability of the edge area by over 70% without damaging the anti-rolling frame, while maintaining a breathability difference of ≤5% between the edge and center areas. This completely resolves the contradiction between anti-rolling and breathability, making it suitable for applications requiring extremely high breathability, such as medical elastic fabrics and summer close-fitting clothing.
[0029] 6. The solution is fully compatible with existing general production equipment, requiring no hardware modification. Knitting factories can directly achieve large-scale mass production by modifying the triangular program and yarn feeding process. The process flow is short, the production cost is low, the fabric performance has good batch stability, and it is easy to promote and apply throughout the industry. Attached Figure Description
[0030] Figure 1 This is a fabric illustration of the present invention; Figure 2 This is a schematic diagram of the interlocking-coil engagement pair coil structure in the engagement transition zone of the present invention; Figure 3 This is a schematic diagram of the weaving process of the high-elasticity, all-scenario anti-rolling knitted fabric described in this invention. Detailed Implementation
[0031] The present invention will be further described in detail below with reference to specific embodiments, comparative examples, and performance tests. The described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0032] See Figures 1 to 3 A high-elasticity, all-scenario anti-rolling knitted fabric, wherein the fabric is a double-sided integrated knitted structure, and is divided into a central high-elasticity functional area, an interlocking transition area symmetrically distributed on both sides of the central high-elasticity functional area, and a mirror anti-rolling area symmetrically distributed on the outside of the interlocking transition area. The central high-elasticity functional area is woven from the first composite elastic yarn with an elastic tuck-plain knit composite structure, providing the fabric with core high elasticity and close-fitting comfort; The interlocking transition zone has 3-5 coil rows, each row forming a set of interlocking-coil interlocking pairs. The interlocking-coil interlocking pairs are formed by the coil suspension arc of the high elasticity functional zone in the middle hooking the interlocking coil settlement arc of the mirror anti-rolling zone, forming an integrated interlocking structure with continuous stress transmission, which completely solves the problem of stress concentration at the boundary of the partition. The mirrored anti-rolling edge area is woven from moisture-sensitive balanced bicomponent ply yarn in a 1:1 mirrored symmetrical double-sided interlocking structure. The mirrored symmetrical double-sided interlocking structure has a segmented weft insertion structure, and every other loop has a tufted hollow hole, which achieves long-lasting anti-rolling edge while taking into account sewing adaptability and high breathability.
[0033] Furthermore, the moisture-sensitive balanced bicomponent ply yarn is composed of a core layer, a middle layer, and an outer layer twisted together from the inside out; the core layer is 20D-40D spandex core-spun yarn, and the outer layer of the core-spun yarn is a cotton and viscose blended yarn, providing the edge area with basic elasticity matching the middle area; the middle layer is high-moisture-swelling viscose staple fiber yarn with a moisture expansion rate ≥18%, used to offset the wet heat shrinkage of spandex during wet washing; the outer layer is low-shrinkage polyester filament with a boiling water shrinkage rate ≤1.5%, providing a stable anti-curling rigid skeleton for the dry fabric, and the ply twist is 600-1000 twists / meter.
[0034] Furthermore, in the aforementioned mirror-symmetric double-sided interlocking structure, the deviation of the coil height, coil length, and yarn feeding tension between the cylinder coil and the needle plate coil is ≤2%. The weft yarn is sandwiched in the middle layer between the needle plate coil and the cylinder coil, and is not exposed to the front and back surfaces of the fabric, thereby achieving 100% balance of internal stress on both sides of the fabric and completely solving the problems of front and back curling and elastic asymmetry.
[0035] Furthermore, the segmented weft insertion structure is as follows: one weft insertion yarn is set every two looped rows along the longitudinal direction of the fabric, and an empty weft insertion row is spaced between two adjacent weft insertion yarns. The loop length and bending stiffness of the empty weft insertion row deviate from the loop length of the high-elasticity functional area in the middle by ≤3%, which retains the anti-rolling skeleton function of the weft insertion and achieves complete compatibility with the garment sewing process.
[0036] Furthermore, the looped hollow hole is formed by the suspended arc of the looped coil, with a hole diameter of 0.8-1.2mm. The weft yarn runs through the coil longitudinally on both sides of the hollow hole, locking the coil structure and greatly improving the air permeability of the edge area without reducing the anti-rolling performance.
[0037] Furthermore, the first composite elastic yarn is a core-sheath structure bicomponent composite yarn, with a core layer of 20D-70D spandex filaments and a sheath layer of polypropylene terephthalate (PTT) and polyethylene terephthalate (PET) parallel composite short fiber wrapped yarn, with a wrapping degree of 800-1200 twists / meter, which combines high elasticity, high resilience and soft hand feel.
[0038] Furthermore, the width of one side of the mirror anti-rolling zone is 5%-15% of the total fabric width, the width of one side of the interlocking transition zone is 1%-3% of the total fabric width, and the width of the central high-elasticity functional zone is 70%-90% of the total fabric width; the lateral and longitudinal rolling rates of the fabric in the dry state and after 50 washes are both ≤2%, the difference in elastic elongation between the front and back sides is ≤3%, and the elastic recovery rate after 50 stretching cycles is ≥95%.
[0039] This invention also provides a method for weaving the above-mentioned high-elasticity, all-scenario anti-rolling knitted fabric, comprising the following steps: S1 yarn preparation: Prepare the first composite elastic yarn and the moisture-sensitive balanced two-component ply yarn according to the preset specifications, and pre-shrink and set them and humidify and balance them respectively to eliminate the internal stress of the yarn and ensure the tension stability during weaving. S2 weaving process settings: Weaving is carried out using a double-sided circular knitting machine commonly used in knitting factories. The ratio of needle count between the cylinder and the needle plate is 1:1. The machine size is 24G-32G. The fabric is divided into a central high-elasticity functional area, a biting transition area, and a mirror anti-rolling edge area. Knitting triangle tracks and independent yarn feeding systems are set for the corresponding areas, without the need for hardware modification of the equipment. S3 integrated weaving: The central high-elasticity functional zone uses the first composite elastic yarn, and the elastic loop-plain knit composite structure is woven by adjusting the triangular trajectory; the interlocking transition zone adjusts the entry and exit sequence of the loop and loop triangle, so that the suspension arc of the central loop directly hooks the sinking arc of the edge interlocking loop, forming an interlocking-loop interlocking pair structure; the mirror anti-rolling zone uses moisture-sensitive balanced double-component ply yarn, weaving a 1:1 mirror symmetrical double-sided interlocking structure, and simultaneously starts the segmented weft feeding program to form a segmented weft feeding structure and loop-type hollow holes; during the weaving process, the loop length and yarn feeding tension deviation of each area are controlled to ≤5% to ensure the overall uniformity of the fabric. S4 Two-Step Patterning and Finishing: The woven fabric is pre-shrinked, washed, wet-state pre-shaped, dry-state heat-set, and softened in sequence. The internal stress structure of the fabric is locked through the two-step patterning process to obtain the finished fabric.
[0040] Furthermore, in step S3, the yarn feeding tension in the interlocking transition zone gradually changes linearly in the transverse direction, and the yarn feeding tension change between adjacent coils is ≤0.2cN; the coil length in the middle high-elasticity functional zone is 2.8-3.6mm, and the yarn feeding tension is 3-5cN; the coil length in the mirror anti-rolling zone is 2.7-3.5mm, and the yarn feeding tension is 3.5-5.5cN.
[0041] Furthermore, in step S4, the wet pre-setting temperature is 80-100℃, the overfeed rate is 10%-15%, and the machine speed is 10-15m / min, used to balance the difference between dry and wet shrinkage of the yarn in advance; the dry heat setting temperature is 160-180℃, the overfeed rate is 8%-12%, and the machine speed is 15-25m / min, used to lock the coil structure and fabric size; after setting, the transverse shrinkage rate of the fabric is ≤4%, and the longitudinal shrinkage rate is ≤2%.
[0042] In the following embodiments, all raw materials are commercially available products in the textile industry, and all weaving and finishing equipment are standard equipment commonly used in domestic knitting factories. No customization or modification is required. Those skilled in the art can directly achieve large-scale production of fabrics based on the parameters of the embodiments.
[0043] As used in this invention, the term "transverse" refers to the weft direction of a knitted fabric, that is, the width direction parallel to the transverse rows of fabric loops; the term "longitudinal" refers to the warp direction of a knitted fabric, that is, the length direction parallel to the longitudinal rows of fabric loops.
[0044] The term "curling rate" refers to the ratio of the total height of the rolled edge to the total width of the fabric after the fabric has been laid flat and left to stand for 24 hours under standard atmospheric conditions (temperature 20℃±2℃, relative humidity 65%±2%). The calculation formula is: Curling rate = (total rolled edge height / total fabric width) × 100%. Among them, the curling rate after washing refers to the test value after the fabric has been washed 50 times under standard household washing (GB / T8629-20175A procedure) and dried, and then left to stand for 24 hours under standard atmospheric conditions.
[0045] The term "elastic elongation" is determined according to GB / T3923.1-2013 "Textiles - Tensile Properties of Fabrics - Part 1: Determination of Breaking Strength and Elongation at Break (Strip Method)". The positive rebound difference rate = |front transverse elastic elongation - back transverse elastic elongation| / front transverse elastic elongation × 100%.
[0046] The term "elastic recovery rate" is determined according to GB / T3923.2-2013 "Textiles - Tensile Properties of Fabrics - Part 2: Determination of Elongation under Constant Load". The test conditions are: stretching to 100% elongation under constant load, holding for 5 minutes and then releasing the load, letting it stand for 3 minutes before testing. The elastic recovery rate after 50 cycles refers to the test value after repeating the above stretch-release cycle 50 times.
[0047] The term "air permeability" is determined according to GB / T5453-1997 "Textiles - Determination of air permeability of fabrics". The air permeability difference rate = |air permeability of the central area - air permeability of the edge area| / air permeability of the central area × 100%.
[0048] The term "fabric feed difference" refers to the ratio of the difference in fabric feed length between the edge area and the center area to the set sewing length after a sewing machine sews a 1m long piece of fabric at a speed of 3000 stitches / minute. It is used to characterize the sewing adaptability of the fabric.
[0049] The term "breaking strength" is determined according to GB / T3923.1-2013. The test sample is a transverse strip of fabric containing a complete transition zone, used to characterize the structural stability of the transition zone.
[0050] Example 1 This embodiment describes a high-elasticity, all-scenario anti-rolling knitted fabric for intimate apparel. The fabric has a total width of 150cm and employs a double-sided, one-piece knitted structure. Along the horizontal direction of the fabric, it is divided into a central high-elasticity functional area, two symmetrical interlocking transition areas on both sides, and two symmetrical mirrored anti-rolling areas on both sides. Specifically, the width of the mirrored anti-rolling area on one side is 15cm (10% of the total width), the width of the interlocking transition area on one side is 2.25cm (1.5% of the total width), and the width of the central high-elasticity functional area is 115.5cm (77% of the total width).
[0051] The fabric raw material parameters for this embodiment are as follows: First composite elastic yarn: core-sheath structure bicomponent composite yarn, the core layer is 40D dull spandex filament with a breaking elongation of ≥700%; the sheath layer is 40SPTT / PET (50 / 50) parallel composite short fiber wrapped yarn with a wrapping degree of 1000 twists / meter and S-twist direction.
[0052] Moisture-sensitive balanced bicomponent ply yarn: It is made of three layers twisted together from the inside out. The core layer is 40D spandex core-spun yarn, the outer layer of the core-spun yarn is 40S cotton / viscose (60 / 40) blended yarn; the middle layer is 30S high moisture-swelling viscose staple fiber yarn with a moisture expansion rate of 20%; the outer layer is 30D low-shrinkage polyester filament with a boiling water shrinkage rate of 1.2%; the ply twist is 800 twists / meter, Z twist direction.
[0053] Weft yarn: The outer layer of the low-shrinkage polyester filament is consistent with the moisture-sensitive balanced bicomponent ply yarn, and is a 30D low-shrinkage polyester filament with a boiling water shrinkage rate of 1.2%.
[0054] The fabric structure in this embodiment is as follows: The high-elasticity functional area in the middle adopts a 1+1 interlaced knitting-plain knitting composite structure. Every 2 knitting loops correspond to 1 knitting loop. The suspension arc length of the knitting loop is 3 loops in the longitudinal direction. The knitting loops are staggered along the longitudinal direction of the fabric. The knitting loops in adjacent horizontal rows are offset by 1 longitudinal row to ensure uniform distribution of internal stress in the fabric.
[0055] Interlocking transition zone: Three coil rows are set up, each row forming a set of interlocking-coil interlocking pairs. The coil suspension arc of the high elasticity functional zone in the middle directly hooks the double-sided interlocking coil settlement arc of the mirror anti-rolling edge zone, forming a continuous coil structure with integrated interlocking and no structural abrupt change points.
[0056] Mirror anti-rolling zone: Adopts a 1:1 mirror symmetrical 2+2 double-sided rib interlocking structure, with the deviation of loop height, loop length, and yarn feeding tension between the cylinder and the needle plate ≤2%; The structure has a segmented weft insertion structure, with one weft insertion yarn set every two looping rows along the fabric longitudinal direction, and one empty weft insertion row between adjacent weft insertion yarns. The weft insertion yarn is completely sandwiched between the needle plate and the cylinder loop and is not exposed on the fabric surface; Every one loop longitudinal direction is set with a 1.0mm diameter loop-type hollow hole, and the weft insertion yarn runs through both sides of the hollow hole longitudinally to lock the loop structure.
[0057] The weaving method of this embodiment includes the following specific steps: S1 yarn preparation: The first composite elastic yarn and the moisture-sensitive balanced bicomponent ply yarn were prepared according to the above specifications. The yarns were pre-shrinked and set at 120℃ for 30 minutes. Then the yarns were placed in an environment with a temperature of 25℃ and a relative humidity of 65% for humidification and balancing treatment for 18 hours to eliminate internal stress in the yarns and ensure stable weaving tension.
[0058] S2 weaving process settings: It adopts a domestically common 28G double-sided circular knitting machine with a cylinder-to-dial needle ratio of 1:1, a total of 2880 needles, and a cylinder diameter of 34 inches. The needle positions are divided into 3 areas along the horizontal direction: 2218 needles in the central high-elasticity functional area, 43 needles each in the two side interlocking transition areas, and 288 needles each in the two side mirror anti-rolling edge areas. Knitting triangle tracks are set for each zone, with the central high-elasticity functional area set as a loop-tuck composite triangle, the interlocking transition area set as a loop-tuck-interlocking linkage triangle, and the mirror anti-rolling edge area set as a double-sided interlocking loop-forming triangle. It is equipped with an 8-way independent zoned yarn feeding system, including 4 ways in the central high-elasticity functional area, 2 ways in the interlocking transition area, and 2 ways in the mirror anti-rolling edge area, requiring no hardware modification to the equipment.
[0059] S3 Zoned Integrated Weaving: The central high-elasticity functional zone is woven with the first composite elastic yarn, with a loop length of 3.2mm and a feeding tension of 4cN; the interlocking transition zone uses the first composite elastic yarn and moisture-sensitive balanced bicomponent ply yarn fed alternately in a 1:1 ratio, with the feeding tension gradually changing linearly from 4cN to 4.3cN along the transverse direction, and the feeding tension change between adjacent warp rows is ≤0.2cN. The timing of the tuck entry and exit is adjusted so that the suspended arc of the looped coil hooks the sinking arc of the interlocked coil, forming an interlocking structure; the mirror anti-rolling zone is woven with moisture-sensitive balanced bicomponent ply yarn, with a loop length of 3.1mm and a feeding tension of 4.3cN. The segmented weft feeding program is started simultaneously, with the weft yarn feeding tension at 3.8cN, which is 12% lower than that of the looped yarn; during the weaving process, the loop length and feeding tension of each area are monitored in real time, and the deviation is controlled to ≤3% to ensure the overall uniformity of the fabric.
[0060] S4 Two-Step Patterning and Finishing: The woven greige fabric undergoes pre-shrinking, washing, wet pre-setting, dry heat setting, and softening treatment in sequence. The pre-shrinking treatment is performed at 100℃ for 20 minutes; washing is done in 40℃ warm water with 0.5g / L degreasing agent added for 30 minutes; wet pre-setting is performed at 90℃ with an overfeed rate of 12% and a machine speed of 12m / min; dry heat setting is performed at 170℃ with an overfeed rate of 10% and a machine speed of 20m / min; the softening treatment uses a hydrophilic softener at 2% (owf) at 40℃ for 15 minutes; finally, the fabric is dried and the finished fabric is obtained.
[0061] Example 2 This embodiment describes a high-elasticity, all-scenario anti-rolling knitted fabric for sportswear. The fabric has a total width of 180cm and adopts a double-sided, one-piece knitted structure. Along the horizontal direction of the fabric, it is divided into a central high-elasticity functional area, two symmetrical interlocking transition areas on both sides, and two symmetrical mirrored anti-rolling areas on both sides. Specifically, the width of the mirrored anti-rolling area on one side is 13.5cm (7.5% of the total width), the width of the interlocking transition area on one side is 3.6cm (2% of the total width), and the width of the central high-elasticity functional area is 145.8cm (81% of the total width).
[0062] The fabric raw material parameters for this embodiment are as follows: First composite elastic yarn: core-sheath structure bicomponent composite yarn, the core layer is 30D high-resilience spandex filament with a breaking elongation of ≥750%; the sheath layer is 32SPTT / PET (50 / 50) parallel composite short fiber wrapped yarn with a wrapping degree of 900 twists / meter and S-twist direction.
[0063] Moisture-sensitive balanced bicomponent ply yarn: It is made of three layers twisted together from the inside out. The core layer is 30D spandex core-spun yarn, the outer layer of the core-spun yarn is 32S cotton / viscose (70 / 30) blended yarn; the middle layer is 32S high moisture-swelling viscose staple fiber yarn with a moisture expansion rate of 19%; the outer layer is 20D low-shrinkage polyester filament with a boiling water shrinkage rate of 1.5%; the ply twist is 700 twists / meter, Z twist direction.
[0064] Weft yarn: 20D low-shrinkage polyester filament, boiling water shrinkage rate 1.5%.
[0065] The fabric structure in this embodiment is as follows: The high-elasticity functional area in the middle adopts a 1+1 spaced-knitting-plain knitting composite structure. Every 2 loops correspond to 1 loop. The suspension length of the loop is 2 loops in the longitudinal direction. The loops are staggered along the longitudinal direction of the fabric. The loops in adjacent rows are offset by 1 longitudinal row.
[0066] Interlocking transition zone: Four longitudinal rows of coils are set up, each row forming a set of interlocking-coil interlocking pairs. The suspended arc of the central coil directly hooks the sinking arc of the edge interlocking coil, forming an integrated interlocking structure.
[0067] Mirror anti-rolling zone: adopts 1:1 mirror symmetrical 1+1 double-sided rib interlocking structure, the loop height, loop length and feed tension deviation of the cylinder and needle plate loops are ≤2%; the segmented weft insertion structure is set with 1 weft insertion yarn every 2 looping rows, with 1 empty weft insertion row in between; every 1 loop longitudinal row is set with 1 loop-type hollow hole with a hole diameter of 0.9mm, and the weft insertion yarn runs through the longitudinal rows on both sides of the hollow hole.
[0068] The weaving method of this embodiment includes the following specific steps: S1 yarn preparation: The yarn is prepared according to the above specifications. The pre-shrinking and setting treatment temperature is 115℃ and the treatment time is 35min. The relative humidity of the humidification and equilibration treatment environment is 62% and the equilibration time is 20h.
[0069] S2 weaving process settings: adopts a 24G double-sided circular knitting machine, with a needle count ratio of 1:1 between the cylinder and the needle plate, a total of 2496 needles, and a cylinder diameter of 38 inches; the needle positions are divided into a central high-elasticity functional area of 2022 needles, two side interlocking transition areas of 50 needles each, and two side mirror anti-rolling edge areas of 187 needles each; correspondingly set up a zoned triangular track and a 6-way independent yarn feeding system.
[0070] S3 zoned integrated weaving: The loop length of the central high-elasticity functional zone is 3.4mm, and the yarn feeding tension is 3.5cN; the yarn feeding tension in the interlocking transition zone gradually changes from 3.5cN to 3.8cN, and the tension change between adjacent warp rows is ≤0.2cN; the loop length of the mirror anti-rolling zone is 3.3mm, the yarn feeding tension is 3.8cN, and the weft yarn feeding tension is 3.4cN, which is 10% lower than that of the loop-forming yarn; the deviation of each parameter during the weaving process is controlled to be ≤4%.
[0071] S4 two-step shaping and finishing process: pre-shrinking temperature 98℃, time 25min; washing temperature 45℃, time 25min; wet pre-setting temperature 85℃, overfeed rate 10%, machine speed 15m / min; dry heat setting temperature 165℃, overfeed rate 8%, machine speed 22m / min; softening treatment using a skin-friendly softener, dosage 2.5% (owf); finally, drying and unloading to obtain the finished fabric.
[0072] Example 3 This embodiment uses a high-elasticity, all-scenario anti-rolling knitted fabric for medical elastic bandages. The fabric has a total width of 120cm and is divided into a central high-elasticity functional area, two side interlocking transition areas, and two side mirror-image anti-rolling areas. Specifically, the width of the single-sided mirror-image anti-rolling area is 12cm (10% of the total width), the width of the single-sided interlocking transition area is 1.8cm (1.5% of the total width), and the width of the central high-elasticity functional area is 92.4cm (77% of the total width).
[0073] The fabric raw material parameters for this embodiment are as follows: First composite elastic yarn: core-sheath structure bicomponent composite yarn, the core layer is 70D medical grade spandex filament with a breaking elongation of ≥650%; the sheath layer is 50S antibacterial PTT / PET parallel composite short fiber wrapped yarn with a wrapping degree of 1200 twists / meter and S-twist direction.
[0074] Moisture-sensitive balanced bicomponent ply yarn: It is made of three layers twisted together. The core layer is 40D medical-grade spandex core-spun yarn, the outer layer is 50S antibacterial viscose blended yarn; the middle layer is 40S high moisture-swelling viscose staple fiber yarn with a moisture expansion rate of 22%; the outer layer is 40D low-shrinkage polyester filament with a boiling water shrinkage rate of 1.0%; the ply twist is 1000 twists / meter, Z twist direction.
[0075] Weft yarn: 40D low-shrinkage polyester filament, boiling water shrinkage rate 1.0%.
[0076] The fabric structure in this embodiment is as follows: Central high-elasticity functional area: 1+1 spacer needle tucking-flat needle composite structure, tucking coil suspension arc length 4 coils longitudinally, longitudinally staggered arrangement.
[0077] Occlusal transition zone: Five coil longitudinal rows are set up, each longitudinal row forming a set of interlocking-coil occlusal pairs, forming an integrated occlusal structure.
[0078] Mirror anti-rolling zone: 1:1 mirror symmetrical 2+2 double-sided rib interlocking structure, needle cylinder and needle plate coil parameter deviation ≤2%; segmented weft insertion structure with 1 weft insertion every 2 looping rows, and 1 empty weft insertion row every other row; 1.2mm diameter loop-type hollow hole is set every 1 longitudinal row, and the weft insertion yarn runs through both sides.
[0079] The weaving method of this embodiment includes the following specific steps: S1 yarn preparation: pre-shrinking and setting treatment temperature 125℃, treatment time 25min; humidification and balancing treatment relative humidity 68%, balancing time 24h.
[0080] S2 weaving process settings: adopts a 32G double-sided circular knitting machine, with a needle count ratio of 1:1 between the cylinder and the needle plate, a total of 3264 needles, and a cylinder diameter of 30 inches; the needle positions are divided into a central high-elasticity functional area of 2513 needles, two side interlocking transition areas of 49 needles each, and two side mirror anti-rolling edge areas of 326 needles each; correspondingly set up a zoned triangular track and an 8-way yarn feeding system.
[0081] S3 zoned integrated weaving: The loop length of the central high-elasticity functional zone is 2.9mm, and the yarn feeding tension is 4.5cN; the yarn feeding tension in the interlocking transition zone gradually changes from 4.5cN to 4.8cN, and the tension change between adjacent warp rows is ≤0.15cN; the loop length of the mirror anti-rolling zone is 2.8mm, the yarn feeding tension is 4.8cN, and the weft yarn feeding tension is 4.2cN, which is 12.5% lower than that of the loop-forming yarn; the weaving parameter deviation is ≤3%.
[0082] S4 two-step shaping and finishing process: pre-shrinking temperature 102℃, time 20min; water washing adopts medical-grade aseptic water washing process, temperature 40℃, time 30min; wet pre-setting temperature 95℃, overfeed rate 15%, machine speed 10m / min; dry heat setting temperature 175℃, overfeed rate 12%, machine speed 18m / min; softening treatment uses medical-grade non-irritating softener, dosage 1.5% (owf); finally sterilize, dry and unload the fabric to obtain the finished fabric.
[0083] Comparative Example 1 This comparative example was prepared according to the technical solution of Comparative Document 1 (CN220703956U) to prepare anti-rolling stretch knitted fabric. The total width of the fabric is 150cm. It is woven on a 28G single-sided circular knitting machine. The main body in the middle is plain weave, and the anti-rolling edge on both sides is zigzag jacquard structure. The raw material is 40D spandex core-spun yarn (40S pure cotton yarn in the outer layer). The weaving and finishing processes are consistent with those of Example 1, serving as a performance comparison.
[0084] Comparative Example 2 This comparative example was prepared according to the technical solution of comparative document 2 (CN104060386B) to prepare anti-rolling knitted fabric. The total width of the fabric is 150cm. It is woven on a modified 28G single-sided circular knitting machine with continuous weft yarn woven into the edges. The raw material is 40D spandex core-spun yarn (40S pure cotton yarn for the outer layer). The weaving and finishing processes are consistent with those of Example 1, serving as a performance control.
[0085] Comparative Example 3 This comparative example uses a traditional double-sided 2+2 rib high-elastic knitted fabric with a total width of 150cm. It is woven on a 28G double-sided circular knitting machine with no zoning structure and a uniform 2+2 rib weave across the entire width. The raw material is the same first composite elastic yarn as in Example 1, and the weaving and finishing processes are consistent with those in Example 1, serving as a performance comparison.
[0086] Performance Testing and Results Analysis The fabrics obtained in Examples 1-3 and Comparative Examples 1-3 were subjected to comprehensive performance tests according to the aforementioned test standards. The test results are shown in the table below:
[0087] The test results clearly show that the fabrics obtained in Examples 1-3 of this invention are significantly superior to the comparative examples 1-2 of the prior art in all dimensions of performance. The core advantages are as follows: 1. Achieved long-lasting anti-curling effect throughout the entire life cycle: The initial dry curling rate of the fabric in the example was ≤1.5%, and the curling rate was still ≤2% after 50 washes, which is far better than the defect of the comparative examples 1-2 where the curling rate soared to more than 15% after washing, and completely solved the industry pain point of curling rebound after washing.
[0088] 2. It takes into account both high elasticity and high resilience: The transverse elastic elongation of the fabric in the example is ≥165%, the longitudinal elastic elongation is ≥85%, and the elastic recovery rate after 50 cycles is ≥96%, which is far superior to the elasticity index of Comparative Examples 1-2, and also far exceeds the traditional ribbed fabric of Comparative Example 3, breaking the technical prejudice that "anti-rolling must sacrifice elasticity".
[0089] 3. Solved the problem of asymmetrical performance between the front and back sides: The difference rate of the front and back rebound of the fabric in the example is ≤2.5%, which is far lower than the difference rate of more than 15% in comparative examples 1-2. This achieves complete consistency in the anti-rolling performance and elasticity of the front and back sides of the fabric, making it suitable for all scenarios of reversible garments.
[0090] 4. Achieving a balance between anti-rolling and high breathability: The difference in breathability between the edge area and the middle area of the fabric in the example is ≤4%, which is comparable to the homogeneous fabric of Comparative Example 3 and far superior to the difference rate of more than 70% of Comparative Examples 1-2, completely solving the contradiction that anti-rolling and breathability cannot be achieved at the same time.
[0091] 5. Significantly improved structural stability of the transition zone: The breaking strength of the transition zone of the fabric in the example is ≥450N, which is more than 80% higher than that of comparative examples 1-2. This completely solves the problems of stress concentration and service failure at the boundary of the zone, and greatly extends the service life of the fabric.
[0092] 6. Perfectly adapted to garment sewing process: The fabric feed difference in the example fabric is ≤2.5%, which is comparable to homogeneous fabric and far superior to the difference rate of more than 12% in comparative examples 1-2. There is no slippage, wrinkling or curling during sewing, no additional manual process is required, and the mass production efficiency is increased by more than 35%.
[0093] In summary, this invention, through the synergistic innovation of materials, structure, and process, completely solves all the core pain points of existing technologies, achieving a comprehensive synergy of long-lasting anti-rolling, high elasticity, high breathability, sewing adaptability, and long service life. It is also fully compatible with existing general production equipment, enabling direct mass production, and possesses outstanding substantive features and significant progress.
[0094] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A highly elastic, all-scenario anti-rolling knitted fabric, characterized in that, The fabric is a double-sided one-piece knitted structure, which is divided into a central high-elasticity functional area, a symmetrically distributed interlocking transition area on both sides of the central high-elasticity functional area, and a mirror anti-rolling edge area symmetrically distributed on the outside of the interlocking transition area. The central high-elasticity functional area is woven from the first composite elastic yarn using an elastic tuck-plain knit composite structure. The interlocking transition zone has 3-5 coil rows, each row forming a set of interlocking-coil interlocking pairs. The interlocking-coil interlocking pairs are formed by the coil suspension arc of the central high elastic functional area hooking the interlocking coil settlement arc of the mirror anti-rolling area, forming an integrated interlocking structure with continuous stress transmission. The mirrored anti-rolling edge area is woven from moisture-sensitive balanced bicomponent ply yarn in a 1:1 mirrored symmetrical double-sided interlocking structure. The mirrored symmetrical double-sided interlocking structure has a segmented weft insertion structure, and every other loop has a tufted hollow hole.
2. The high-elasticity, all-scenario anti-rolling knitted fabric according to claim 1, characterized in that, The moisture-sensitive balanced bicomponent ply yarn is composed of a core layer, a middle layer, and an outer layer twisted together from the inside out. The core layer is 20D-40D spandex core-spun yarn, and the outer layer of the core-spun yarn is a blended yarn of cotton and viscose. The middle layer is high-moisture-swelling viscose staple fiber yarn with a moisture expansion rate ≥18%. The outer layer is low-shrinkage polyester filament with a boiling water shrinkage rate ≤1.5%, and the ply twist is 600-1000 twists / meter.
3. The high-elasticity, all-scenario anti-rolling knitted fabric according to claim 1, characterized in that, In the aforementioned mirror-symmetric double-sided interlocking structure, the deviations in loop height, loop length, and yarn feeding tension between the cylinder loop and the needle plate loop are ≤2%, and the weft yarn is sandwiched in the middle layer between the needle plate loop and the cylinder loop, and is not exposed on the front and back surfaces of the fabric.
4. The high-elasticity, all-scenario anti-rolling knitted fabric according to claim 1, characterized in that, The segmented weft insertion structure is as follows: every two looped weft yarns are arranged along the longitudinal direction of the fabric, and there is a gap of one empty weft insertion row between two adjacent weft insertion rows. The loop length and bending stiffness of the empty weft insertion row deviate from the loop length of the high elasticity functional area in the middle by ≤3%.
5. The high-elasticity, all-scenario anti-rolling knitted fabric according to claim 1, characterized in that, The loop-shaped hollow hole is formed by the suspended arc of the loop coil, with a hole diameter of 0.8-1.2mm. The weft yarn runs through the coil longitudinally on both sides of the hollow hole to lock the coil structure.
6. The high-elasticity, all-scenario anti-rolling knitted fabric according to claim 1, characterized in that, The first composite elastic yarn is a core-sheath structure bicomponent composite yarn. The core layer is 20D-70D spandex filament, and the sheath layer is a polypropylene terephthalate and polyethylene terephthalate parallel composite short fiber wrapped yarn with a wrapping degree of 800-1200 twists / meter.
7. The high-elasticity, all-scenario anti-rolling knitted fabric according to claim 1, characterized in that, The width of one side of the mirror anti-rolling zone is 5%-15% of the total fabric width, the width of one side of the interlocking transition zone is 1%-3% of the total fabric width, and the width of the central high-elasticity functional zone is 70%-90% of the total fabric width; the lateral and longitudinal rolling rates of the fabric in the dry state and after 50 washes are both ≤2%, and the difference in elastic elongation between the front and back sides is ≤3%.
8. A method for weaving a high-elasticity, all-scenario anti-rolling knitted fabric as described in any one of claims 1-7, characterized in that, Includes the following steps: S1 yarn preparation: Prepare the first composite elastic yarn and the moisture-sensitive balanced bicomponent ply yarn, and pre-shrink and set them and humidify them for balancing treatment respectively; S2 weaving process settings: double-sided circular knitting is adopted, the needle count ratio of the cylinder to the needle plate is 1:1, the machine size is 24G-32G, the central high elastic functional area, the interlocking transition area, and the mirror anti-rolling edge area are divided along the fabric horizontally, and the knitting triangle track and the zoned yarn feeding system are set for the corresponding zones. S3 Zone Integrated Weaving: The central high-elasticity functional zone uses the first composite elastic yarn to weave an elastic loop-plain knit composite structure; the interlocking transition zone adjusts the triangular trajectory to form an interlocking-loop interlocking structure; the mirror anti-rolling zone uses moisture-sensitive balanced double-component ply yarn to weave a 1:1 mirror symmetrical double-sided interlocking structure, and simultaneously starts the segmented weft insertion feeding program to form a segmented weft insertion structure and loop-type hollow holes; S4 Two-Step Patterning and Finishing: The woven fabric is pre-shrinked, washed, wet-state pre-setting, dry-state heat setting, and softening treatment in sequence to obtain the finished fabric.
9. The weaving method according to claim 8, characterized in that, In step S3, the yarn feeding tension in the interlocking transition zone gradually changes linearly in the transverse direction, and the yarn feeding tension change between adjacent coils is ≤0.2cN; the coil length in the middle high-elasticity functional zone is 2.8-3.6mm, and the yarn feeding tension is 3-5cN; the coil length in the mirror anti-rolling zone is 2.7-3.5mm, and the yarn feeding tension is 3.5-5.5cN.
10. The weaving method according to claim 8, characterized in that, In step S4, the temperature of the wet pre-setting is 80-100℃, the overfeed rate is 10%-15%, and the machine speed is 10-15m / min; the temperature of the dry heat setting is 160-180℃, the overfeed rate is 8%-12%, and the machine speed is 15-25m / min; after setting, the transverse shrinkage rate of the fabric is ≤4%, and the longitudinal shrinkage rate is ≤2%.
Citation Information
Patent Citations
A device and method for anti-rolling of weft-knitted single-sided fabrics
CN104060386B
Anti-curling pull frame knitted fabric
CN220703956U
Anti-curling light jacquard mesh cloth
CN222043497U
