Manufacturing method of modal and blended knitted fabric thereof

Abstract

The invention provides a manufacturing method of modal and blended knitted fabric thereof, which specifically comprises the following steps: S1, singeing: quickly passing gray fabric of modal cotton blended knitted elastic plain cloth fabric through a burner of a singeing machine, and burning off hairiness on the surface of the fabric; s2, boiling off and bleaching: boiling off and bleaching the singed gray fabric by adopting a high-temperature overflow dyeing machine; s3, in-cylinder loose mercerizing: directly performing loose mercerizing treatment on the boiled and bleached wet cloth in a high-temperature overflow dyeing cylinder; s4, reactive dyeing: dyeing the fabric subjected to the loose mercerizing treatment by using a reactive dye according to a required color, and fixing the color by using sodium carbonate; s5, soaping: soaping the dyed fabric to remove flooding; s6, tentering and shaping; s7, preshrinking is carried out; and S8, finished product inspection and the like. The defects that modal and blended knitted fabric thereof are prone to deformation and pilling are overcome, meanwhile, the elasticity and resilience of the fabric are improved, and the fabric is endowed with soft, glutinous and smooth hand feeling, easy-care, crease-resistant and good in gloss after being washed.

Description

Technical Field

[0001] This invention relates to the field of textile technology, and more specifically to a method for manufacturing modal and its blended knitted fabrics. Background Technology

[0002] Modal fiber is a cellulose fiber whose fabrics have a silky sheen, a soft touch, and excellent moisture absorption, making them particularly suitable for underwear and home textiles. However, Modal fiber itself has limited elasticity and lacks sufficient resilience, making it prone to stretching and deformation after prolonged wear or washing. Furthermore, the smooth surface of Modal fibers results in weak cohesion between fibers, causing individual fibers to easily protrude from the yarn after spinning, forming fuzz. During wear and washing, these fuzzy fibers rub against each other and gradually entangle into balls. The tendency of Modal fabrics to deform and pill significantly impacts the consumer experience and has long been a technical challenge for the dyeing and finishing industry.

[0003] In existing technologies, woven fabrics made of modal and its blends are treated with mercerizing or liquid ammonia finishing to improve deformation and pilling. However, knitted fabrics are generally not mercerized, and the usual mercerizing process is carried out on a flat-width mercerizing machine, resulting in a stiffer hand feel and a loss of elasticity. Other methods to improve pilling include using resins and anti-pilling agents to form a cross-linking film, which also causes the fabric to feel stiffer. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention proposes a manufacturing method for modal and its blended knitted fabrics, which solves the problems of modal and its blended knitted fabrics being easy to deform and pill, while improving the elasticity and resilience of the fabric, and giving the fabric a soft and silky feel, wrinkle resistance after washing and good luster.

[0005] To achieve the above technical solution, the present invention provides a method for manufacturing modal and its blended knitted fabrics, specifically including the following steps: S1. Singeing: The modal cotton blend knitted elastic plain weave fabric is quickly passed through the singeing machine nozzle to burn off the fuzz on the surface of the fabric, making the fabric surface smooth. S2. Scouring and bleaching: The singed fabric is scouring and bleaching using a high-temperature overflow dyeing machine. During the scouring and bleaching process, caustic soda with a mass concentration of 1-2 g / L, hydrogen peroxide with a mass concentration of 1-3 g / L, and refining agent with a mass concentration of 1-2 g / L are added. The scouring and bleaching temperature is maintained at 90-100℃ and the time is maintained at 30-60 minutes. After draining, the fabric is washed once with hot water and once with cold water. S3. Loose mercerizing in the vat: The wet cloth that has been boiled and bleached is directly subjected to loose mercerizing treatment in a high-temperature overflow dyeing vat. During the loose mercerizing treatment, 150-180g / L of caustic soda is added, the temperature is controlled at 55-65℃, and the immersion time is 3-5 minutes. After mercerizing, the cloth is drained and washed with acetic acid water to neutralize it to a pH between 6 and 7. S4. Reactive dyeing: The fabric after loose mercerizing is dyed with reactive dyes according to the required color, and then fixed with soda ash. S5. Soap washing: After dyeing, the fabric is soap washed to remove the loose color. After soap washing, it is washed once with hot water and once with cold water. S6. Tensioning and setting: After dyeing, the fabric is immersed in the liquid on the setting machine, and then dried by hot air tensioning and setting. S7. Pre-shrinkage: The fabric is shrunk by the rubber blanket of the pre-shrinking machine, and the shrinkage is controlled within -3% to 0%. S8. Finished Product Inspection: Inspect the appearance and internal quality indicators of the fabric.

[0006] Preferably, in step S1, the speed of the singeing machine is controlled at 60-80 m / min, and the singeing machine uses a double-sided direct singeing method to ensure efficient and uniform removal of fuzz from the fabric surface. This lays the foundation for obtaining a smooth fabric surface and reducing the risk of pilling in subsequent mercerizing, while avoiding incomplete singeing due to excessive speed or damage to the fabric due to excessively slow speed.

[0007] Preferably, in step S2, the refining agent is a DIADVIN EWN 200% refining agent produced by Tona Trading (Shanghai) Co., Ltd.

[0008] Preferably, in step S4, the dyeing temperature is maintained at 55-65℃, the holding time is 15-25 minutes, the liquor ratio is 1:8, and the amount of soda ash is 8-12 g / L. Controlling the dyeing temperature to 55-65℃ and the liquor ratio to 1:8 is particularly suitable for modal fabrics whose fiber activity is enhanced after in-vat mercerizing, which facilitates uniform dye adsorption and penetration, and reduces fiber damage and deformation caused by high-temperature dyeing. The precise amount of soda ash (8-12 g / L) ensures effective color fixation.

[0009] Preferably, in step S5, 1.0-2.0 g / L of soaping agent is added during the soaping process, the soaping temperature is controlled at 85-95℃, and the soaping time is 8-12 minutes. Under optimized temperature and time, using the specified soaping agent can thoroughly remove floating color, improve color fastness, and reduce subsequent color changes and pilling caused by friction from floating color.

[0010] Preferably, the soaping agent is a soaping agent with model number DM-1573 produced by Guangdong Demei Fine Chemical Group Co., Ltd.

[0011] Preferably, in step S6, during the stretching and setting process, 10-30 g / L of softener and 1-3 g / L of penetrant are added, and the machine speed is controlled at 40-60 m / min and the temperature at 130-160℃. The penetrant helps the finishing solution penetrate evenly; at a suitable temperature, the softener can effectively cross-link and adhere, giving the fabric lasting softness. This temperature range ensures the cross-linking and fixation of the auxiliaries while avoiding damage to the modal fibers from excessively high temperatures. The controlled machine speed ensures uniform heating and setting.

[0012] Preferably, the softener is PERSOFTAL NANO-SIL softener manufactured by Tona Trading (Shanghai) Co., Ltd.; and the penetrant is FORYL WET penetrant manufactured by Kokae Fine Chemicals (Shanghai) Co., Ltd.

[0013] The beneficial effects of the invention regarding a method for manufacturing modal and its blended knitted fabrics are as follows: (1) This invention organically combines processes such as "singeing → boiling and bleaching → loose mercerizing in a vat → dyeing → finishing" to form a proprietary process system specifically for the characteristics of modal knitted fabrics. Experimental results fully verify its effectiveness: the pilling level is improved to level 5, the elastic elongation and recovery rate are significantly improved, the twist rate after washing is reduced, the shrinkage rate is stabilized at an excellent level (-1.9%~1.0%), and the hand feel is softer. It systematically solves the shortcomings of modal and its blended knitted fabrics in the prior art, such as easy deformation and pilling, while improving the elasticity and recovery of the fabric, and giving the fabric a soft and silky hand feel, wrinkle-resistant and non-iron-washing properties, and good luster.

[0014] (2) This invention realizes the innovative application of "in-vat loose mercerizing": the wet fabric is loosely mercerized in a high-temperature overflow dyeing machine (in-vat). Compared with the traditional flat-width tight mercerizing, the loose state avoids the fabric being subjected to strong tension, thereby preserving the natural elasticity and soft touch of the knitted fabric to the greatest extent (the significant reduction in transverse / vertical softness force values ​​in the experimental data is proof of this). At the same time, the high-concentration alkaline solution (150-180g / L) acts on the fiber at a moderate temperature (55-65℃), which can fully expand the fiber, reorganize the internal structure of the fiber, and improve the crystallinity, thereby permanently enhancing the fiber strength, dimensional stability (improving shrinkage), and luster, and reducing the tendency to pill due to loose hair.

[0015] (3) This invention creatively and adaptably introduces the "mercerization" process, which is usually used for woven fabrics, into the processing of knitted fabrics. It abandons the traditional flat-width mercerizing machine that causes hardening of the hand feel and instead uses an overflow dyeing machine that is more suitable for knitted fabrics in a loose state. This is a non-obvious process conversion and combination that breaks through the technical prejudice that "knitted fabrics are generally not mercerized" and can achieve the technical effect of "improving the defects of modal knitted fabrics without damaging their hand feel and elasticity". Ultimately, it achieves a balance and comprehensive improvement of various properties. Attached Figure Description

[0016] Figure 1 This is a process flow diagram of the present invention. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, 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 without creative effort are within the protection scope of the present invention.

[0018] Example 1: A method for manufacturing modal and its blended knitted fabrics.

[0019] Reference Figure 1 As shown, a method for manufacturing modal and its blended knitted fabrics, taking a 175g knitted elastic plain weave fabric of 40S+20D modal-cotton blend (80% modal, 15% cotton, 5% spandex) as an example, the production process from greige fabric to finished fabric is as follows: S1, singeing: The fabric is quickly passed through the singeing machine nozzle to burn off the fuzz on the surface of the fabric, making the fabric smooth. Vehicle speed 70m / min, double-sided direct heating; S2. Pre-treatment (boiling and bleaching): The pretreatment of the greige fabric was carried out using the Lixin high-temperature overflow dyeing machine. The process formula is as follows: Caustic soda: 1g / L Hydrogen peroxide: 3g / L Refining Agents - Tona Trading (Shanghai) Co., Ltd. DIADVIN EWN 200% 03: 2g / L Processing conditions: 95℃, 50 minutes; After draining, rinse with hot water once and then with cold water once; S3, In-cylinder loose mercerizing: After pretreatment, the wet cloth is directly subjected to loose mercerizing treatment in the Lixin high-temperature overflow dyeing vat. The process formula is as follows: Sodium hydroxide concentration: 160g / L Temperature: 60℃ Soaking time: 4 minutes After mercerizing, drain the water and add acetic acid to wash and neutralize to pH 6.5; S4, Active Staining: The loosely mercerized fabric is dyed with reactive dyes to the required color and then fixed with soda ash. Staining temperature: 60℃, holding time: 20min, liquor ratio: 1:8, soda ash dosage: 10g / L; S5, soap wash: After dyeing, wash the fabric with soap to remove excess dye. Special-effect soap detergent DM-1573 from Guangdong Demei Fine Chemical Group Co., Ltd.: 1.5g / L Soap washing temperature: 90℃, soap washing time: 10min; After washing with soap, wash with hot water once and then with cold water once. S6. Tensioning and Shaping: After dyeing, the fabric is dipped in the dyeing solution on a setting machine, and then dried by hot air stretching and setting. Softener Tona Trading (Shanghai) Co., Ltd. PERSOFTAL NANO-SIL: 20g / L Permeation agent: KOKA Fine Chemicals (Shanghai) Co., Ltd. FORYL WET: 2g / L Vehicle speed 50m / min, temperature 140℃; S7, Pre-shrinkage: The shrinkage of the fabric is controlled within -3% to 0% by using a pre-shrinking machine with a rubber blanket to shrink the fabric. S8. Finished Product Inspection: The appearance and internal quality indicators of the fabric are inspected.

[0020] Example 2: A method for manufacturing modal and its blended knitted fabrics.

[0021] Reference Figure 1 As shown, a method for manufacturing modal and its blended knitted fabrics, taking a 175g knitted elastic plain weave fabric of 40S+20D modal-cotton blend (80% modal, 15% cotton, 5% spandex) as an example, the production process from greige fabric to finished fabric is as follows: S1, singeing: The fabric is quickly passed through the singeing machine nozzle to burn off the fuzz on the surface of the fabric, making the fabric smooth. Vehicle speed 80m / min, double-sided direct heating; S2. Pre-treatment (boiling and bleaching): The pretreatment of the greige fabric was carried out using the Lixin high-temperature overflow dyeing machine. The process formula is as follows: Caustic soda: 2g / L Hydrogen peroxide: 2g / L Refining Agents - Tona Trading (Shanghai) Co., Ltd. DIADVIN EWN 200% 03: 1g / L Processing conditions: 100℃, 30 minutes; After draining, rinse with hot water once and then with cold water once; S3, In-cylinder loose mercerizing: After pretreatment, the wet cloth is directly subjected to loose mercerizing treatment in the Lixin high-temperature overflow dyeing vat. The process formula is as follows: Sodium hydroxide concentration: 180g / L Temperature: 55℃ Soaking time: 3 minutes After mercerizing, drain the water and add acetic acid to wash and neutralize to pH 6.5; S4, Active Staining: The loosely mercerized fabric is dyed with reactive dyes to the required color and then fixed with soda ash. Staining temperature: 55℃, holding time: 25min, liquor ratio: 1:8, soda ash dosage: 8g / L; S5, soap wash: After dyeing, wash the fabric with soap to remove excess dye. Special-effect soap detergent DM-1573 from Guangdong Demei Fine Chemical Group Co., Ltd.: 1g / L Soap washing temperature: 95℃, soap washing time: 12min; After washing with soap, wash with hot water once and then with cold water once. S6. Tensioning and Shaping: After dyeing, the fabric is dipped in the dyeing solution on a setting machine, and then dried by hot air stretching and setting. Softener Tona Trading (Shanghai) Co., Ltd. PERSOFTAL NANO-SIL: 10g / L Permeation agent: KOKA Fine Chemicals (Shanghai) Co., Ltd. FORYL WET: 3g / L Vehicle speed 40m / min, temperature 130℃; S7, Pre-shrinkage: The shrinkage of the fabric is controlled within -3% to 0 by using a pre-shrinking machine with a rubber blanket to shrink the fabric. S8. Finished Product Inspection: The appearance and internal quality indicators of the fabric are inspected.

[0022] Example 3: A method for manufacturing modal and its blended knitted fabrics.

[0023] Reference Figure 1As shown, a method for manufacturing modal and its blended knitted fabrics, taking a 175g knitted elastic plain weave fabric of 40S+20D modal-cotton blend (80% modal, 15% cotton, 5% spandex) as an example, the production process from greige fabric to finished fabric is as follows: S1, singeing: The fabric is quickly passed through the singeing machine nozzle to burn off the fuzz on the surface of the fabric, making the fabric smooth. Vehicle speed 60m / min, double-sided direct heating; S2. Pre-treatment (boiling and bleaching): The pretreatment of the greige fabric was carried out using the Lixin high-temperature overflow dyeing machine. The process formula is as follows: Caustic soda: 2g / L hydrogen peroxide: 1g / L Refining Agents - Tona Trading (Shanghai) Co., Ltd. DIADVIN EWN 200% 03: 2g / L Processing conditions: 90℃, 60 minutes; After draining, rinse with hot water once and then with cold water once; S3, In-cylinder loose mercerizing: After pretreatment, the wet cloth is directly subjected to loose mercerizing treatment in the Lixin high-temperature overflow dyeing vat. The process formula is as follows: Sodium hydroxide concentration: 150g / L Temperature: 65℃ Soaking time: 5 minutes After mercerizing, drain the water and add acetic acid to wash and neutralize to pH 6.5; S4, Active Staining: The loosely mercerized fabric is dyed with reactive dyes to the required color and then fixed with soda ash. Staining temperature: 65℃, holding time: 15min, liquor ratio: 1:8, soda ash dosage: 12g / L; S5, soap wash: After dyeing, wash the fabric with soap to remove excess dye. Special-effect soap detergent DM-1573 from Guangdong Demei Fine Chemical Group Co., Ltd.: 2g / L Soap washing temperature: 85℃, soap washing time: 8 minutes; After washing with soap, wash with hot water once and then with cold water once. S6. Tensioning and Shaping: After dyeing, the fabric is dipped in the dyeing solution on a setting machine, and then dried by hot air stretching and setting. Softener Tona Trading (Shanghai) Co., Ltd. PERSOFTAL NANO-SIL: 30g / L Permeation agent: KOKA Fine Chemicals (Shanghai) Co., Ltd. FORYL WET: 1g / L Vehicle speed 60m / min, temperature 160℃; S7, Pre-shrinkage: The shrinkage of the fabric is controlled within -3% to 0 by using a pre-shrinking machine with a rubber blanket to shrink the fabric. S8. Finished Product Inspection: The appearance and internal quality indicators of the fabric are inspected.

[0024] The color fastness and color change index of the all-cotton dark-colored fabric produced in Examples 1-3 were tested and compared with ordinary dark-colored fabric. The test results are shown in Table 1: Table 1 Fabric Test Results As can be seen from the data in Table 1, the pilling level of ordinary processed fabrics is only level 3, while Examples 1-3 of this invention all reach level 5 (the highest level). This is not a slight improvement, but a qualitative leap from "acceptable" to "excellent," completely solving the most criticized pilling problem of modal fabrics and greatly improving the fabric's appearance durability and high-end feel. At the same time, the above data also directly confirms the combined effect of "singeing (S1)" removing the source of fuzz and the core step "in-cylinder loose mercerizing (S3)" enhancing fiber cohesion and reducing fuzz shedding. Its main working principle is as follows: (1) Modal is a regenerated cellulose fiber. When soaked in a caustic soda solution, the cellulose molecular chains expand and rearrange under the action of the alkali solution, increasing the fiber diameter and changing the cross-sectional shape. At the same time, the crystallinity decreases, the amorphous region increases, the hydrogen bonds between molecular chains are broken, and the macromolecules are arranged more neatly, thereby enhancing the fiber orientation and luster, making the fabric surface smoother. After swelling, the fibers are arranged more tightly, improving the cohesion. Therefore, under the action of external friction, the fibers are not easy to come out, thus reducing the chance of forming fuzz and pilling. Therefore, the pilling performance of the fabric is improved.

[0025] (2) When modal and its blended knitted fabrics undergo loose mercerizing in a vat, the fabric is in a tension-free state, causing the yarn to swell and the fabric to shrink freely. Therefore, after being stretched out, it will have good recovery force. Thus, loose mercerizing gives the fabric good elasticity and resilience. It also improves the dimensional stability and wrinkle resistance of the fabric. Usually, mercerized fabrics are in a flat state with high tension, and the caustic soda is also cold alkali mercerizing at room temperature. The alkali soaking time of the fabric is short, and the hand feel of the mercerized fabric is relatively stiff. This invention uses hot alkali mercerizing at 55-65℃ and appropriately reduces the alkali concentration. The fabric is soaked in alkali in the vat for a longer time, which can fully react. Therefore, the hand feel of the mercerized fabric is very soft and elastic.

[0026] As can be seen from the data in Table 1, after being treated by the present invention, the elongation of the fabric is greatly improved, which means that the fabric can adapt to greater stretching without being easily damaged; and the leap in recovery rate (from about 60% to more than 80%) is a more critical breakthrough, which shows that the fabric can almost completely recover its original shape after stretching, fundamentally solving the pain points of modal fabric being "easy to deform and lacking elasticity".

[0027] The data in Table 1 also shows that the post-wash twist rate decreased from 3.8% in the ordinary process to 1.7%-1.9% in the example, an improvement of over 50%. This means that the garments are less prone to twisting after washing and have excellent shape retention. The shrinkage rate was optimized from -3.3%×-2.8% to approximately -1.8%×-1.1%, stably controlled at an excellent level close to "zero shrinkage" (the standard requires -3% to 0%). These data are direct proof that "in-tank loose mercerizing" permanently improves the stability of fiber morphology. Combined with the precise control of "pre-shrinkage (S7)," it achieves excellent dimensional stability and resistance to deformation of the fabric.

[0028] Table 1 data also shows that the force values ​​of Examples 1-3 (27-29 mN vertically, 25-26 mN horizontally) are significantly lower than those of the ordinary process (42 mN vertically, 41 mN horizontally), resulting in a softness improvement of approximately 30%-40%. The wrinkle-free rating has improved from level 2.5 in the ordinary process to level 3.5, consistent with all three examples, indicating that the fabric maintains its smoothness better after washing and requires no ironing. This invention successfully breaks the traditional contradiction of "soft fabrics wrinkle easily, wrinkle-free fabrics are stiff." While achieving an extremely soft touch, it also endows the fabric with good structure and wrinkle resistance. This is due to the gentle treatment of fibers by "loose mercerizing" and the precise application of specific softeners (such as PERSOFTAL NANO-SIL) in "stretching and setting (S6)," achieving a unity of softening finishing and shape setting at an appropriate temperature.

[0029] This invention organically combines processes such as singeing, bleaching, in-vat loose mercerizing, dyeing, and finishing to form a proprietary process system specifically designed for the characteristics of modal knitted fabrics. Experimental results comprehensively validate its effectiveness: pilling level improved to level 5, elastic elongation and recovery rate significantly improved, post-wash twist rate reduced, shrinkage rate stabilized at an excellent level (-1.9%~1.0%), and the hand feel became softer. It systematically solves the shortcomings of existing technologies regarding the easy deformation and pilling of modal and its blended knitted fabrics, while improving the fabric's elasticity and resilience, and giving it a soft, silky hand feel, wrinkle-resistant properties after washing, and a good luster.

[0030] Furthermore, this invention achieves the innovative application of "in-vat loose mercerizing": loose mercerizing of wet fabric in a high-temperature overflow dyeing machine (inside the vat) avoids strong tension on the fabric compared to traditional flat-width tight mercerizing, thus preserving the natural elasticity and soft touch of the knitted fabric to the greatest extent (as evidenced by the significant reduction in transverse / vertical softness force values ​​in experimental data). Simultaneously, the high-concentration alkaline solution (150-180 g / L) acting on the fibers at a moderate temperature (55-65℃) fully expands them, reorganizes the internal structure of the fibers, and increases crystallinity, thereby permanently enhancing the fiber's strength, dimensional stability (improving shrinkage), and luster, while reducing the tendency to pill due to loose fibers.

[0031] Furthermore, this invention creatively and adaptably introduces the "mercerization" process, typically used for woven fabrics, into the processing of knitted fabrics. It also abandons the traditional flat-width mercerizing machine that leads to a hardened hand feel, and instead uses an overflow dyeing machine, which is more suitable for knitted fabrics, to perform the process in a loose state. This is a non-obvious process conversion and combination that breaks through the technical prejudice that "knitted fabrics are generally not mercerized." It can also achieve the technical effect of "improving the defects of modal knitted fabrics without compromising their hand feel and elasticity," ultimately achieving a balance and comprehensive improvement in various properties.

[0032] The above description is only a preferred embodiment of the present invention, but the present invention should not be limited to the content disclosed in the embodiments and drawings. Therefore, any equivalent or modified embodiments made without departing from the spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A method for manufacturing modal and its blended knitted fabrics, characterized in that... Specifically, the steps include the following: S1. Singeing: The modal cotton blend knitted elastic plain weave fabric is quickly passed through the singeing machine nozzle to burn off the fuzz on the surface of the fabric, making the fabric surface smooth. S2. Scouring and bleaching: The singed fabric is scouring and bleaching using a high-temperature overflow dyeing machine. During the scouring and bleaching process, caustic soda with a mass concentration of 1-2 g / L, hydrogen peroxide with a mass concentration of 1-3 g / L, and refining agent with a mass concentration of 1-2 g / L are added. The scouring and bleaching temperature is maintained at 90-100℃ and the time is maintained at 30-60 minutes. After draining, the fabric is washed once with hot water and once with cold water. S3. Loose mercerizing in the vat: The wet cloth that has been boiled and bleached is directly subjected to loose mercerizing treatment in a high-temperature overflow dyeing vat. During the loose mercerizing treatment, 150-180g / L of caustic soda is added, the temperature is controlled at 55-65℃, and the immersion time is 3-5 minutes. After mercerizing, the cloth is drained and washed with acetic acid water to neutralize it to a pH between 6 and 7. S4. Reactive dyeing: The fabric after loose mercerizing is dyed with reactive dyes according to the required color, and then fixed with soda ash. S5. Soap washing: After dyeing, the fabric is soap washed to remove the loose color. After soap washing, it is washed once with hot water and once with cold water. S6. Tensioning and setting: After dyeing, the fabric is immersed in the liquid on the setting machine, and then dried by hot air tensioning and setting. S7. Pre-shrinkage: The fabric is shrunk by the rubber blanket of the pre-shrinking machine, and the shrinkage is controlled within -3% to 0%. S8. Finished Product Inspection: Inspect the appearance and internal quality indicators of the fabric.

2. The method for manufacturing Modal and its blended knitted fabrics as described in claim 1, characterized in that, In step S1, the speed of the singeing machine is controlled at 60-80 m / min, and the singeing is performed through the singeing machine nozzle using a double-direct singeing method.

3. The method for manufacturing Modal and its blended knitted fabrics as described in claim 1, characterized in that, In step S2, the refining agent is a DIADFIN EWN 200% refining agent produced by Tona Trading (Shanghai) Co., Ltd.

4. The method for manufacturing Modal and its blended knitted fabrics as described in claim 1, characterized in that, In step S4, the dyeing temperature is maintained at 55-65℃, the holding time is 15-25 min, the liquor ratio is 1:8, and the amount of soda ash used is 8-12 g / L.

5. The method for manufacturing Modal and its blended knitted fabrics as described in claim 1, characterized in that, In step S5, 1.0-2.0 g / L of soaping agent is added during the soaping process, the soaping temperature is controlled at 85-95℃, and the soaping time is 8-12 min.

6. The method for manufacturing Modal and its blended knitted fabrics as described in claim 1, characterized in that, The soaping agent is DM-1573, manufactured by Guangdong Demei Fine Chemical Group Co., Ltd.

7. The method for manufacturing Modal and its blended knitted fabrics as described in claim 1, characterized in that, In step S6, during the stretching and setting process, 10-30 g / L of softener and 1-3 g / L of penetrant are added, and the machine speed is controlled at 40-60 m / min and the temperature at 130-160℃.

8. The method for manufacturing Modal and its blended knitted fabrics as described in claim 1, characterized in that, The softener is PERSOFTAL NANO-SIL, manufactured by Tona Trading (Shanghai) Co., Ltd.; the penetrant is FORYL WET, manufactured by Kokae Fine Chemicals (Shanghai) Co., Ltd.

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