Method for finishing of cashmere knitwear and cashmere knitwear
By performing finishing processes such as fulling, fine washing, opening, steaming, raising, and pre-shrinking on cashmere knitted fabrics, the problems of short fiber length and sparse hairs in traditional processes are solved, achieving a rich and delicate touch and good stiffness, thus improving the appearance and feel of the fabric.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INNER MONGOLIA ERDOS RESOURCES CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-07-14
AI Technical Summary
In the finishing process, traditional cashmere knitted fabrics have shorter fiber lengths and sparser hair distribution, resulting in a lack of crispness and fullness, insufficient visual luster, and poor softness and elasticity, making it difficult to meet the stringent requirements of high-end clothing.
The finishing process involves steps such as fulling, fine washing, opening, initial steaming, steel wire raising, steam brushing, and pre-shrinking. It includes specific temperature, time, and pressure control. Through mechanical action and chemical treatment, the density and softness of the fibers are improved, resulting in a rich and delicate nap.
It enhances the fluffy, smooth feel of cashmere knitted fabrics, improves their crispness and warmth, and meets the quality requirements of high-end clothing.
Smart Images
Figure CN120925226B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of textile technology, specifically to a finishing method for cashmere knitted fabric and the cashmere knitted fabric itself. Background Technology
[0002] Cashmere knitted fabrics, with their excellent warmth, delicate feel, and natural luxury, are widely used in high-end fashion, luxury goods, and everyday wear. Their natural fiber structure gives them good warmth retention and skin-friendliness, making them a preferred material for winter clothing. However, traditional finishing processes often result in short fiber lengths and sparse hair distribution on the fabric's nap, leading to a lack of crispness and fullness, insufficient visual luster, and subpar softness and elasticity. These shortcomings make it difficult for traditional cashmere knitted fabrics to simultaneously meet the stringent requirements of both delicate feel and high-quality appearance in high-end apparel applications. Summary of the Invention
[0003] This disclosure aims to address the problems existing in the prior art by providing a finishing method for cashmere knitted fabrics and a cashmere knitted fabric.
[0004] According to a first aspect of this disclosure, a finishing method for cashmere knitted fabric is provided, comprising the following steps:
[0005] Step a: Fulling treatment, the cashmere knitted fabric is fulled, wherein the fulling treatment time is 50 min to 70 min;
[0006] Step b: Fine washing treatment, the cashmere knitted fabric treated in step a is subjected to fine washing treatment;
[0007] Step c: Unfolding process, unfolding the cashmere knitted fabric after step b into a flat width;
[0008] Step d: Initial steaming, the cashmere knitted fabric treated in step c is steamed and shaped for the first time;
[0009] Step e: Steel wire raising, the cashmere knitted fabric treated in step d is subjected to steel wire raising treatment;
[0010] Step f: Steam brushing treatment, the cashmere knitted fabric treated in step e is subjected to steam brushing treatment;
[0011] Step g: Pre-shrinking and secondary steaming treatment. The cashmere knitted fabric treated in step f is pre-shrinked, and the pre-shrinked cashmere knitted fabric is then subjected to secondary steaming treatment.
[0012] In one embodiment of this disclosure, in step a, the water temperature for the fulling treatment is 40°C to 50°C, the roller pressure is 1.5 bar to 2 bar, the groove pressure is 1.2 bar to 1.5 bar, and the fabric speed is 120 m / min to 150 m / min.
[0013] In one embodiment of this disclosure, in step d, the initial steaming time is 3 to 5 minutes, the cooling time is 10 to 12 minutes, the pressure is 4 to 6 bar, and the weaving speed is 13 to 15 m / min.
[0014] In one embodiment of this disclosure, in step g, the pre-shrinking fabric speed is 12 m / min to 15 m / min.
[0015] In one embodiment of this disclosure, in step g, the air supply time for the secondary steaming is 5 to 7 minutes, the cooling time is 2 to 5 minutes, the pressure is 4 to 6 bar, and the fabric speed is 13 to 15 m / min.
[0016] In one embodiment of this disclosure, a pretreatment step is included before step a, wherein the pretreatment step includes blank inspection, dehairing, pre-washing, and dehydration.
[0017] In one embodiment of this disclosure, in the pretreatment step, the pre-wash temperature is 40°C to 45°C, and the bath ratio of cashmere to water is 1:30.
[0018] In one embodiment of this disclosure, step b further includes:
[0019] A single fine wash is performed at a temperature of 45°C to 50°C for 30 minutes.
[0020] A second fine wash is performed at a temperature of 45°C to 50°C for 10 to 15 minutes.
[0021] The process involves three fine washes, each at a temperature of 30°C to 40°C for 20 to 30 minutes.
[0022] Dehydration treatment, wherein the dehydration treatment time is 3 to 5 minutes;
[0023] The drying process is carried out at a temperature of 70°C to 80°C for a time of 50 to 60 minutes.
[0024] In one embodiment of this disclosure, step e further includes a shearing process, wherein the shearing process has a blade spacing of 1.5 mm to 2 mm, a brush spacing of 0.5 mm to 1 mm, a cloth speed of 13 m / min to 15 m / min, and a rotation speed of 700 r / min to 900 r / min.
[0025] According to a second aspect of this disclosure, a cashmere knitted fabric is provided, which is a cashmere knitted fabric obtained by the finishing method described above.
[0026] The finishing method for cashmere knitted fabric disclosed herein, through processes such as fulling, steaming, raising, and steam brushing, produces a cashmere knitted fabric that is rich, delicate, and soft, with a fluffy and smooth touch, good stiffness, and also good warmth retention and density.
[0027] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description
[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.
[0029] Figure 1 This is a flowchart of a finishing method for cashmere knitted fabric provided in one embodiment of the present disclosure. Detailed Implementation
[0030] To make the inventive objectives, technical solutions, and beneficial technical effects of this application clearer, the following detailed description is provided in conjunction with specific embodiments. It should be understood that the embodiments described in this specification are merely illustrative and not intended to limit the scope of this application.
[0031] For simplicity, this paper only explicitly discloses some numerical ranges. However, any lower limit can be combined with any upper limit to form an unspecified range; and any lower limit can be combined with other lower limits to form an unspecified range, just as any upper limit can be combined with any other upper limit to form an unspecified range. Furthermore, although not explicitly stated, every point or individual value between the endpoints of a range is included within that range. Therefore, each point or individual value can serve as its own lower or upper limit and be combined with any other point or individual value, or with other lower or upper limits, to form an unspecified range.
[0032] In the description of this article, it should be noted that, unless otherwise stated, "above" and "below" include the number itself, and "several" in "one or more" means two or more.
[0033] The foregoing description of this invention is not intended to describe every disclosed embodiment or implementation. Instead, the following description provides more specific examples of exemplary embodiments. Throughout the application, guidance is provided through a series of embodiments that can be used in various combinations. The examples listed are merely representative and should not be construed as exhaustive.
[0034] like Figure 1 As shown, this embodiment provides a finishing method for cashmere knitted fabrics, specifically including the following steps:
[0035] Step a: Fulling treatment. The cashmere knitted fabric is fulled for 50 to 70 minutes. Mechanical action on the wet fabric causes the surface to become napped, which facilitates subsequent napping.
[0036] Specifically, the cashmere knitted fabric is soaked in clean water with a fulling agent added. The wet cashmere knitted fabric is then placed in a fulling machine, where continuous mechanical action, such as tumbling, squeezing, and rubbing, is applied. Because the surface of cashmere fibers is covered with tiny scales, these scales are open in the warm, humid environment. The continuous mechanical rubbing creates unidirectional friction between the cashmere fibers—the coefficient of friction is lower along the scale direction and higher against it. This causes the fibers to tend to move and entangle towards their roots, resulting in overall shrinkage, thickening, and densification of the cashmere fibers. Simultaneously, some cashmere fiber ends are pulled or twisted out of the yarn structure, forming a fine, uniform, and soft nap on the fabric surface. This makes the surface of the cashmere knitted fabric more compact, reduces yarn gaps, and produces a rich, delicate, and soft nap. This significantly enhances the smooth, fluffy, and warm feel of the cashmere knitted fabric, increases its density and strength, and also facilitates the subsequent napping process.
[0037] Controlling the fulling process to 50-70 minutes ensures sufficient time for the cashmere fibers to rise under mechanical force. Too short a time results in sparse, uneven fulling, insufficient felting, and a fabric that lacks fluffiness and softness, failing to achieve the desired style and warmth. Because cashmere fibers are delicate and soft, excessive fulling can cause over-felting of the cashmere knit fabric, making it too thick and stiff, losing its proper fluffiness and elasticity, and even leading to severely misfit garment sizes. Therefore, controlling the fulling process to 50-70 minutes ensures a full, delicate nap, excellent fluffiness and smoothness, good warmth and density, while effectively avoiding insufficient fulling due to insufficient time or excessive shrinkage, fiber damage, and quality deterioration due to excessive time. This effectively improves product quality and production efficiency.
[0038] Further, in step a, the water temperature for the fulling treatment is 40°C to 50°C, the roller pressure is 1.5 bar to 2 bar, the groove pressure is 1.2 bar to 1.5 bar, and the fabric speed is 120 m / min to 150 m / min.
[0039] Setting the water temperature for the felting process to 40℃ to 50℃, in a humid and hot environment, softens the cashmere fibers, enhances the mobility of molecular chains, and makes the cashmere fibers more flexible, easily bending and felting under mechanical force. Setting the roller pressure to 1.5 bar to 2 bar effectively promotes the directional movement of cashmere fibers, increasing friction between them to form a tight structure, while avoiding excessive pressure that could cause fiber breakage. Within this roller pressure range, while achieving the felting effect, it also reduces physical damage to the cashmere fibers, maintaining the soft hand feel and luster of the cashmere knitted fabric. Controlling the groove pressure within the range of 1.2 bar to 1.5 bar promotes the rapid penetration of auxiliaries and water into the cashmere knitted fabric, ensuring sufficient fiber expansion and improving the uniformity of felting. Furthermore, controlling the fabric speed within the range of 120 m / min to 150 m / min meets the efficiency requirements of continuous production while ensuring sufficient felting time for the cashmere knitted fabric, ensuring high-efficiency felting.
[0040] Step b: Fine washing treatment, the cashmere knitted fabric treated in step a is then finely washed.
[0041] Specifically, the cashmere knitted fabric, after being felted and preliminarily dehydrated, is placed in a washing machine or other fine washing equipment for fine washing. During the fine washing process, the water temperature needs to be controlled to prevent the cashmere fibers from undergoing uncontrollable felting or damage under humid and hot conditions.
[0042] Furthermore, step b also includes: a first fine wash, a second fine wash, a third fine wash, dehydration treatment, and drying treatment. The first fine wash is performed at a temperature of 45℃ to 50℃ for 30 minutes. This first fine wash allows the fabric, after being felted and compressed, to fully recover its inherent elasticity and shape, and also preliminarily removes some residual felting agent and impurities acquired during production. Controlling the temperature of the first fine wash at 45℃ to 50℃ and the washing time at 30 minutes helps the cashmere fibers relax appropriately, while avoiding the risk of felting shrinkage caused by excessively high temperatures.
[0043] The temperature of the second fine wash is 45℃ to 50℃, and the time is 10 minutes to 15 minutes, in order to remove the felting agent and other chemical auxiliaries that may still remain inside the fiber after the first fine wash, so as to prevent the residues from affecting subsequent processing (such as dyeing, softening treatment) or the feel, color and performance of the final product.
[0044] The three fine washes are performed at a temperature of 30℃ to 40℃ for 20 to 30 minutes. During the three fine washes, the washing temperature is relatively low. In this low-temperature environment, the softener molecules are more stable and can be evenly adsorbed onto the surface of the cashmere fibers to form a monomolecular film. This reduces the coefficient of friction between fibers and significantly improves the smoothness and suppleness of the fabric.
[0045] After three fine washes, the cashmere fibers can be dehydrated for 3 to 5 minutes. This removes excess moisture from the fibers using a centrifugal spin dryer or other dehydration equipment, preventing uneven heating during subsequent drying. The cashmere fibers can then be dried in a dryer at 70°C to 80°C for 50 to 60 minutes, resulting in a moisture regain of 12% to 15%. This range prevents the fibers from becoming brittle due to excessive dryness (moisture regain <10%) while also preventing the risk of mildew caused by excessive moisture (moisture regain >16%), thus maintaining the fabric's fluffiness and elasticity.
[0046] Step c: Unfolding process. The cashmere knitted fabric processed in step b is unfolded into a flat width.
[0047] Fine washing improves the fluffiness and cleanliness of cashmere knitted fabrics, but it can also cause shrinkage and deformation. Therefore, a mid-term inspection is necessary after fine washing. This inspection primarily checks the quality of the wash and shrinkage, identifies fiber damage and uneven shrinkage, and measures the fabric's length, width, and weight as data for subsequent processes. After passing the mid-term inspection, the fabric is then unwound. Specifically, the tubular fabric treated in step b is slowly and smoothly unwound, with the traction controlled within a preset range to avoid fiber damage or dimensional deformation. This ensures the unwound fabric is flat and wrinkle-free, preparing it for subsequent processes.
[0048] Step d: Initial steaming. The cashmere knitted fabric treated in step c is steamed and shaped for the first time.
[0049] After steps a to c, the surface of the cashmere knitted fabric may have creases and wrinkles. The initial steaming uses high-temperature saturated steam under appropriate tension to give energy to the cashmere fiber macromolecular chains, causing rearrangement and relaxation. This process effectively eliminates internal stress, smooths wrinkles, and gives the fabric a high degree of smoothness and dimensional stability. The humid and hot environment temporarily softens the cashmere fibers, and under the set tension and pressure, the relative positions between the fibers are stabilized in a new equilibrium state. After cooling, the width, length, and density of the cashmere knitted fabric tend to stabilize. Furthermore, if the cashmere knitted fabric has high internal stress, is uneven, or has unstable dimensions, directly raising and shearing it will result in messy pile, uneven lengths, fabric damage, severe shrinkage or deformation, and even irreparable defects. Therefore, the initial steaming also provides a foundation for dimensional stability for subsequent raising and shearing, preventing uncontrollable dimensional changes during processing.
[0050] In one embodiment of this disclosure, in step d, the initial steaming time is 3 to 5 minutes, the cooling time is 10 to 12 minutes, the pressure is 4 to 6 bar, and the weaving speed is 13 to 15 m / min.
[0051] Specifically, a 4-bar pressure corresponds to a high steam temperature. This high temperature causes the keratin molecular chains in the cashmere fibers to move violently, breaking hydrogen bonds and rapidly expanding the cashmere fiber scales, thus increasing the softness of the cashmere fibers. Setting the steam supply time to 3 to 5 minutes allows the cashmere fibers to soften sufficiently, releasing the mechanical stress accumulated during weaving, while also preventing damage from prolonged high temperatures and preserving the fibers' elasticity. Setting the cooling time to 10 to 12 minutes allows the cashmere fibers to cool slowly, forming a stable structure. Setting the weaving speed to 13 to 15 m / min allows the cashmere fibers to fully absorb heat in the steam zone and have sufficient time to cool and set in the cooling zone, which is beneficial for subsequent processes.
[0052] Step e: Steel wire raising, the cashmere knitted fabric treated in step d is subjected to steel wire raising.
[0053] Specifically, reverse roller raising refers to the steel needle penetrating the yarn against the scale direction, i.e., from the root to the tip of the cashmere fiber. The reverse tooth angle of the cashmere fiber scales forms a mechanical self-locking with the needle hook, forcibly pulling out the fiber end. Forward roller raising refers to the steel needle moving along the scale direction, i.e., from the tip to the root of the cashmere fiber. This combs the pile and addresses the entanglement between the fibers, preventing excessive stretching and breakage of the cashmere fibers. Setting the reverse roller raising force to 12 allows for high-intensity and precise hooking of deep cashmere fibers; setting the forward roller raising force to 9 allows for gentle combing of the surface cashmere fibers; setting the fabric speed to 15m / min and controlling the tension at 3N / cm, through mechanical force, pulls out the surface pile of the cashmere knitted fabric, resulting in a fuller, more abundant pile.
[0054] In one embodiment of this disclosure, step e further includes a shearing process, wherein the shearing blade distance is 1.5 mm to 2 mm, the brush distance is 0.5 mm to 1 mm, the fabric speed is 13 m / min to 15 m / min, and the rotation speed is 700 r / min to 900 r / min. Shearing trims the unevenly long nap on the fabric surface, making the surface smooth and the nap neat and uniform.
[0055] After the cashmere knitted fabric undergoes steel wire raising, it also needs to be sheared. The shearing blade spacing is 1.5mm to ensure consistent pile length and create a uniform short pile surface. The shearing brush spacing is 0.5mm, allowing the brush bristles to penetrate deep into the cashmere fibers and remove loose fibers and residual impurities generated during shearing from the fabric surface. Furthermore, controlling the fabric speed and rotation speed parameters ensures both efficiency and effectiveness in the shearing process.
[0056] After the hair is sheared, a second inspection is required to more rigorously remove all impurities.
[0057] This involves inspecting and removing impurities from the fuzzing and shearing processes, as well as any adsorbed loose hair. Finally, the finished product must be inspected and packaged.
[0058] Step f: Steam brushing treatment. The cashmere knitted fabric treated in step e is then steam brushed to remove any lint and impurities adhering to the fabric surface.
[0059] Specifically, the scales of cashmere fibers open under high-temperature steam, releasing the cashmere fibers hooked between them. Furthermore, the humid environment eliminates static electricity and reduces the adhesion of impurities to the cashmere fiber surface, thus facilitating the removal of lint and impurities. This steam-brushing treatment not only cleans away lint and impurities adhering to the surface of cashmere knitted fabrics but also helps straighten the cashmere fibers, which is beneficial for subsequent processes.
[0060] Step g: Pre-shrinking and secondary steaming treatment. The cashmere knitted fabric treated in step f is pre-shrinked, and then subjected to secondary steaming. Pre-shrinking further consolidates the shrinkage effect and ensures the dimensional stability of the fabric. Secondary steaming sets the fabric, improves dimensional stability, flexibility, and smoothness.
[0061] Specifically, during the initial processing of cashmere knitted fabrics, the cashmere fibers generate internal stress. Pre-shrinking releases this internal stress, allowing the shrinkage rate of the cashmere knitted fabric to be controlled within a low range in both the transverse and longitudinal directions. This prevents natural shrinkage during subsequent washing due to the hydrophilic expansion of the cashmere fibers. Furthermore, a secondary steaming process can further refine the cashmere knitted fabric based on the pre-shrinking treatment, ensuring its dimensional stability, flexibility, and smoothness.
[0062] Furthermore, in step g, the pre-shrinking speed is 12m / min to 15m / min. Setting the pre-shrinking speed to 12m / min to 15m / min and performing two rounds of pre-shrinking with vibration ensures that the cashmere fibers have sufficient pre-shrinking time, thereby achieving high efficiency, uniformity, and structural optimization in the pre-shrinking treatment of cashmere knitted fabrics.
[0063] In one embodiment of this disclosure, in step g, the air supply time for the second steaming is 5 to 7 minutes, the cooling time is 2 to 5 minutes, the pressure is 4 to 6 bar, and the fabric speed is 13 to 15 m / min. The second steaming can eliminate the residual internal stress in the cashmere knitted fabric after the previous process, further enhancing the fabric's shape retention strength and smoothness.
[0064] In one embodiment of this disclosure, a pretreatment step is included before step a, wherein the pretreatment step includes blank inspection, dehairing, pre-washing, and dehydration.
[0065] Furthermore, in the pre-treatment step, the pre-wash temperature is 40℃ to 45℃, and the bath ratio of cashmere to water is 1:30. Controlling the pre-wash temperature at 40℃ to 45℃ can both slightly open the edges of the cashmere scales to expose the internal dirt and avoid excessive swelling that could damage the scale edges and cashmere fibers.
[0066] Specifically, the quality of the greige fabric is inspected visually or using instruments, checking for defects such as holes, oil stains, and hidden defects like weak fiber areas and uneven density, and these defects are repaired. After inspection, impurities need to be removed from the greige fabric, a process known as de-hairing. This involves removing burrs, coarse fibers, and discolored fibers from the fabric. Impurities on the surface of the greige fabric are removed through inspection and manual methods to ensure cleanliness for subsequent processing. Afterward, the greige fabric can be pre-washed using a fulling agent at a dosage of 7% for 20 to 30 minutes. The fulling agent penetrates the greige fabric under 1.5 to 2 bar roller pressure, squeezing out dirt and impurities from the surface of the cashmere fibers.
[0067] To further remove grease from the cashmere fibers, the greige fabric is placed in warm water at 50°C with a liquor ratio of 1:30 and a cleaning agent is added. The fabric is then washed for 15 to 20 minutes under 2 bar roller pressure for a deep wash, further removing grease and deep dirt from the cashmere fibers. After the pre-wash and detergent wash steps, residual cleaning agents may remain on the cashmere fabric. Washing the cashmere fabric for 3 to 5 minutes will remove any remaining water stains from these agents.
[0068] Afterward, the cashmere fabric needs to be washed twice with clean water. The water temperature should be controlled at 40℃, the washing time should be controlled at 0.5min to 1min, and the liquor ratio should be 1:30. This will clean the tiny impurities in the gaps of the cashmere fibers. Finally, the cashmere fabric will be dehydrated for 3min to 5min to give the fabric a certain degree of fluffiness.
[0069] In another embodiment of this disclosure, a cashmere knitted fabric is provided, which is a cashmere knitted fabric obtained by the finishing method described above.
[0070] In one embodiment of this disclosure, the cashmere knitted fabric further includes the following steps before undergoing the finishing method described above:
[0071] S1: Raw material selection. In this embodiment, high-quality cashmere with a fineness of 15.8μm to 16.5μm and a length of 34cm to 36cm is selected. Using finer cashmere fibers ensures uniform cohesion between individual fibers in the yarn, eliminating the itching sensation caused by coarse fibers and improving the softness and suppleness of the product. Selecting cashmere of uniform length ensures that the ends of long fibers overlap consistently in the yarn, reducing the outward curl of short fiber ends and preventing a prickly feel. By strictly controlling the dispersion of the raw material's fineness and length, the neatness and consistency of the cashmere surface can be ensured.
[0072] S2: The yarn is spun using ring spinning technology, with a twist between that of woven and knitted yarns. This ensures the structural stability of the fabric while facilitating subsequent napping. This process balances the fabric's crispness and softness, giving the product both a firm yet supple feel, laying the foundation for subsequent finishing processes.
[0073] S3: Knitting, using a weft circular knitting machine, employing double-sided or single-sided plain weave. During the weaving process, it is necessary to control the weaving parameters to ensure that the preset fabric density and style are achieved, so that the cashmere knitted fabric can maintain good stiffness and softness during the finishing process.
[0074] The finishing method for cashmere knitted fabric disclosed herein, through processes such as fulling, steaming, raising, and steam brushing, produces a cashmere knitted fabric that is rich, delicate, and soft, with a fluffy and smooth touch, good stiffness, and also good warmth retention and density.
[0075] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, and are not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein. The scope of the invention is defined by the appended claims.
Claims
1. A finishing method for cashmere knitted fabric, characterized in that, Includes the following steps: Step a: Fulling treatment. The cashmere knitted fabric is fulled for 50 to 70 minutes, the water temperature is 40°C to 50°C, the roller pressure is 1.5 bar to 2 bar, the groove pressure is 1.2 bar to 1.5 bar, and the fabric speed is 120 m / min to 150 m / min. Step b: Fine washing treatment. The cashmere knitted fabric treated in step a is then subjected to a fine washing treatment, which includes: A single fine wash is performed at a temperature of 45°C to 50°C for 30 minutes. A second fine wash is performed at a temperature of 45°C to 50°C for 10 to 15 minutes. The process involves three fine washes, each at a temperature of 30°C to 40°C for 20 to 30 minutes. Dehydration treatment, wherein the dehydration treatment time is 3 to 5 minutes; The drying process is carried out at a temperature of 70°C to 80°C for a time of 50 to 60 minutes. Step c: Unfolding process, unfolding the cashmere knitted fabric after step b into a flat width; Step d: Initial steaming. The cashmere knitted fabric treated in step c is subjected to initial steaming and shaping. The air supply time for the initial steaming is 3 to 5 minutes, the cooling time is 10 to 12 minutes, the pressure is 4 to 6 bar, and the fabric speed is 13 to 15 m / min. Step e: Steel wire raising, the cashmere knitted fabric treated in step d is subjected to steel wire raising treatment; Step f: Steam brushing treatment, the cashmere knitted fabric treated in step e is subjected to steam brushing treatment; Step g: Pre-shrinking and secondary steaming treatment. The cashmere knitted fabric treated in step f is pre-shrinked and then subjected to secondary steaming treatment. The air supply time for secondary steaming is 5 to 7 minutes, the cooling time is 2 to 5 minutes, the pressure is 4 to 6 bar, and the fabric speed is 13 to 15 m / min.
2. The post-treatment method according to claim 1, characterized in that, In step g, the pre-shrinking fabric speed is 12 m / min to 15 m / min.
3. The post-finishing method according to claim 1, characterized in that, Before step a, a pretreatment step is included, which includes blank inspection, dehairing, pre-washing, and dehydration.
4. The post-finishing method according to claim 3, characterized in that, In the pretreatment step, the pre-wash temperature is 40°C to 45°C, and the bath ratio of cashmere to water is 1:
30.
5. The post-finishing method according to claim 1, characterized in that, Step e also includes a shearing process, wherein the blade spacing of the shearing process is 1.5 mm to 2 mm, the brush spacing is 0.5 mm to 1 mm, the cloth speed is 13 m / min to 15 m / min, and the rotation speed is 700 r / min to 900 r / min.
6. A cashmere knitted fabric, characterized in that, The cashmere knitted fabric is a cashmere knitted fabric obtained by the finishing method described in any one of claims 1 to 5.