Method for improving fibrillation of tencel yarn-dyed fabric

Abstract

The invention belongs to the technical field of textiles, and particularly relates to a method for improving fibrillation of a tencel yarn-dyed fabric. The method for improving fibrillation of the tencel yarn-dyed fabric comprises the following procedures of cheese dyeing, weaving, singeing, desizing, tentering and preshrinking. Wherein in the cone yarn dyeing process, a dyeing working solution is prepared from 1wt.%-3wt.% of a chain bond fusion agent FF and 5-20g / L of sodium carbonate, and the pH value of the working solution is 9-11; the cheese dyeing temperature is 75-90 DEG C, and the dyeing time is 70-90 min. According to the method for improving fibrillation of the tencel yarn-dyed fabric, on the basis that production of the tencel yarn-dyed fabric is not affected, the finishing procedure is reduced, the production efficiency is effectively improved, meanwhile, a chain bond fusion agent is introduced in the dyeing procedure, and the fibrillation of the tencel yarn-dyed fabric is improved through deep cross-linking reaction of lyocell cellulose molecules. A product which is soft in hand feeling and low in formaldehyde content can be prepared without using a resin finishing agent in the fabric finishing process.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of textiles, and particularly relates to a method for improving fibrillation of spun-dyed lyocell fabric. BACKGROUND

[0002] Spun-dyed fabric refers to fabric woven by a loom. Compared with printed cloth, spun-dyed fabric needs to go through processes such as yarn dyeing, weaving and post-finishing, and has a relatively high cost due to a large total consumption of materials. However, the spun-dyed fabric has a unique style and can be widely used in various formal clothes such as shirts, windbreakers, trousers and overcoats as well as casual clothes. In addition, the spun-dyed fabric has a light and comfortable texture and is an indispensable high-grade fabric for modern life.

[0003] Lyocell is divided into G100 lyocell, A100 lyocell and LF lyocell according to raw materials. G100 lyocell is referred to as standard lyocell and is prone to fibrillation. A100 lyocell is obtained by cross-linking treatment under a fiber wet state, and has a low fibrillation degree. LF lyocell is between G100 lyocell and A100 lyocell, and the fibrillation of G100 lyocell and LF lyocell needs to be improved when they are applied to woven spun-dyed fabric.

[0004] The reason why lyocell is prone to fibrillation is that lyocell fiber has inherent structural characteristics. The surface fibrils have high crystallinity and uniform cross section, but the binding force between the fibrils is weak and lacks elasticity. This structural characteristic causes the outer layer of the fiber to break easily when subjected to mechanical friction, and then forms fine fluff with a length of about 1-4 microns. This phenomenon is more obvious in a wet state because the wet state further weakens the binding force between the fibrils and accelerates the breaking process. From the different effects of fibrillation, if the fibrillation process occurs uniformly, the surface of the fabric will form a velvet appearance, thereby presenting a peach skin style, which is a useful characteristic. However, in a conventional case, the length of the fibrils generated by the first fibrillation is usually long, more than 1 mm or even more. These long fibrils are easy to entangle into balls on the surface of the fabric, which ultimately affects the wearing experience and visual appearance of the clothes.

[0005] A conventional method for improving fibrillation is to use resin cross-linking technology in the fabric finishing process to improve the fibrillation. Although this method can effectively reduce the degree of fibrillation, the fabric obtained has a hard and stiff hand feeling, high formaldehyde content, and quality problems such as color change and low strength.

[0006] CN119083171A discloses a method for preventing fibrillation of Tencel by preliminary fibrillation treatment in a fibrillation agent and an alkaline environment, followed by dispersion softening treatment under the action of sodium dodecyl sulfate and a softener; finally, a crosslinking liquid is added for treatment to obtain anti-fibrillation Tencel; the process forms different adhesive crosslinking effects on the villus surface by using a composite crosslinking system mainly composed of aziridine and supplemented by isocyanuric acid triglycidyl ester, and cooperates with the molecular size to form staggered crosslinking solidification, effectively forming a crosslinking layer on the surface of Tencel, preventing penetration and producing deep fibrillation effect; however, the method of first fibrillation and then crosslinking treatment is prone to insufficient reaction, thereby causing serious fibrillation, and there is a problem of complicated process, and the treatment with sodium hydroxide in a wet state greatly damages the strength and softness of Tencel, bringing difficulty to fabric finishing.

[0007] CN117364512A discloses a fibrillation prevention treatment process for Lyocell dyed fabric, after the dyed Lyocell fabric is treated by removing excess dye, the fabric is immersed in a fixing crosslinking agent treatment liquid to heat and soak, so that the fixing crosslinking agent is uniformly adsorbed on the fabric, the fixing crosslinking agent is one of water-based polyurethane fixing crosslinking agent, cationic polymer fixing crosslinking agent and polyamine resin fixing crosslinking agent, and the treated Lyocell fabric is washed, soft treated and dried; the method can realize the fibrillation prevention effect of Lyocell dyed fabric, simultaneously fix the color of the fabric, reduce the process steps and cost; but the method will affect the strength of the yarn, cause the strength of the fabric to decrease, and bring difficulty to the finishing, and the method will increase the fibrillation range of the Tencel after finishing by lubricating the fabric and the like. SUMMARY

[0008] In view of the deficiencies of the prior art, the purpose of the present application is to provide a method for improving the fibrillation of Tencel yarn-dyed fabric, which reduces the finishing process without affecting the production of Tencel yarn-dyed fabric, effectively improves the production efficiency, and introduces a chain bond fusion agent in the dyeing process to produce a product with soft hand feeling and low formaldehyde content through deep crosslinking reaction of Lyocell cellulose molecules without using resin finishing agent in the fabric finishing process.

[0009] The method for improving the fibrillation of Tencel yarn-dyed fabric comprises the following steps: Bobbin dyeing → weaving → singeing → desizing → tentering → preshrinking; Among them: The cone yarn dyeing process, dyeing working fluid: chain bond fusion agent FF: 1wt.%-3wt.%, soda: 5-20g / L, working fluid pH value is 9-11; Cone yarn dyeing temperature: 75-90℃, dyeing time: 70-90min; wherein, chain bond fusion agent FF preferably Zhejiang Chuanhua Chemical Group Linkcel FF; secondly, in actual production, different colors of reactive dyes are introduced according to the needs of actual production; finally, in the cone yarn dyeing process, the raw material is G100 tencel or LF tencel.

[0010] The weaving process, speed 500-600r / min, tension 2000-2400N, stretch 200-320°.

[0011] The singeing process, speed 90-100m / min, flame intensity 7-11bar.

[0012] The desizing process, padding desizing working fluid: desizing enzyme: 2-9g / L, refining agent: 2-9g / L, penetrant: 1-3g / L; speed 90-100m / min, washing temperature 90-95℃, stacking time 3-10min, steaming box temperature 90-100℃.

[0013] Among them, in the desizing process, the desizing enzyme is preferably the product DS-HT of Zibo Luru Fine Chemical Co., Ltd., the refining agent is preferably the product XC-J of Zibo Luru Fine Chemical Co., Ltd., and the penetrant is preferably the product WR-03 of Qingdao Onos Trade Co., Ltd.

[0014] The tentering process, padding silicone softener: 5-20g / L, overfeed-1.0%~+5.0%, oven temperature 90-130℃; silicone softener preferably product SL of Zibo Luru Fine Chemical Co., Ltd.; wherein, the essence of overfeed is the difference ratio of feeding speed and output speed, that is, (feeding speed-output speed) / output speed*100%, when overfeed is negative, it represents that the feeding speed of the fabric is less than the output speed of the equipment, and when overfeed is positive, it represents that the feeding speed of the fabric is greater than the output speed of the equipment.

[0015] The pre-shrinking process, rubber blanket temperature: 90-120℃, wool blanket temperature: 90-120℃, speed: 40-60m / min.

[0016] The application is directed to the process improvement of the cone yarn dyeing step, and a chain bond fusion agent is added in the dyeing process. Under alkaline conditions, the chain bond fusion agent reacts with the lyocell cellulose molecular chain to realize the covalent crosslinking of adjacent cellulose molecules. The crosslinking reaction can inhibit the molecular chain slip and microfibril peeling of the fiber caused by mechanical friction in the wet treatment process, enhance the adhesion of the fibril, and further reduce the fibrillation degree of the lyocell yarn-dyed fabric. In addition, the crosslinking reaction occurs in the fiber interior rather than the surface, without changing the softness of the fiber surface, and the prepared product has soft hand feeling.

[0017] Compared with the prior art, the application has the following beneficial effects: (1) The method for improving the fibrillation of the lyocell yarn-dyed fabric of the application adopts dyeing in the same bath, without the need for separate drying, baking and other steps, which does not affect the continuity of the lyocell yarn-dyed fabric production, greatly reduces the number of finishing processes, and effectively improves the production efficiency of the lyocell yarn-dyed fabric.

[0018] (2) The method for improving the fibrillation of the lyocell yarn-dyed fabric of the application introduces a chain bond fusion agent to occur crosslinking reaction in the cone yarn dyeing process. Compared with the traditional production process, the crosslinking reaction occurs in the fiber interior rather than the surface, without changing the softness of the fiber surface, and without the need for using a resin finishing agent in the fabric finishing process, the product with soft hand feeling, low formaldehyde content and no color difference can be obtained. At the same time, the crosslinking reaction enhances the adhesion of the fibril, and solves the quality problems of the fabric caused by fibrillation, such as hairiness disorder, pilling and the like. DETAILED DESCRIPTION

[0019] The technical solutions of the application will be further described below in combination with examples and comparative examples. The raw materials used in the examples and comparative examples are all conventional commercially available raw materials unless otherwise specified, and the processes used in the examples and comparative examples are all conventional methods in the art unless otherwise specified.

[0020] The raw materials used in the examples and comparative examples are described as follows: Desizing enzyme DS-HT: Zibo Luru Fine Chemical Co., Ltd.; Refining agent XC-J: Zibo Luru Fine Chemical Co., Ltd.; Penetrating agent WR-03: Qingdao Onos Trade Co., Ltd.; Silicone oil softener SL: Zibo Luru Fine Chemical Co., Ltd.; Soda ash: Zibo Taigun Material Co., Ltd.; Chain bond fusion agent FF: Zhejiang Chuanhua Chemical Group Linkcel FF; Resin finishing agent SW: Anguo Chemical (China) Co., Ltd.

[0021] Example 1 The blue fabric is selected, and 2 / 1 twill is organized, warp and weft yarn count is 60 / 2, 100% G100 tencel fabric, warp density is 160 roots / inch, weft density is 120 roots / inch.

[0022] The method for improving the fibrillation of the tencel yarn-dyed fabric comprises the following procedures: Cone dyeing→ weaving→ singeing→ desizing→ tentering→ preshrinking; (1) The dyeing working solution containing the reactive blue dye in the cone dyeing procedure: chain bond fusion agent FF: 3wt.%, soda: 5g / L, the pH value of the working solution is 9; the cone dyeing temperature is 90°C, and the dyeing time is 70min; (2) The weaving procedure, the speed is 500r / min, the tension is 2400N, and the stretching is 320°; (3) The singeing procedure, the speed is 90m / min, and the flame intensity is 11bar; (4) The desizing procedure, the padding desizing working solution: desizing enzyme DS-HT: 9g / L, refining agent XC-J: 9g / L, and penetration agent WR-03: 3g / L; the speed is 90m / min, the washing temperature is 95°C, the stacking time is 10min, and the steaming box temperature is 100°C; (5) The tentering procedure, the padding silicone oil softener SL: 5g / L, the overfeed is +5%, and the oven temperature is 130°C; (6) The preshrinking procedure, the rubber blanket temperature is 120°C, the wool blanket temperature is 120°C, and the speed is 60m / min.

[0023] Example 2 The blue fabric is selected, and 2 / 1 twill is organized, warp and weft yarn count is 120 / 2, 100% LF tencel fabric, warp density is 180 roots / inch, and weft density is 160 roots / inch.

[0024] The method for improving the fibrillation of the tencel yarn-dyed fabric comprises the following procedures: Cone dyeing→ weaving→ singeing→ desizing→ tentering→ preshrinking; (1) The dyeing working solution containing the reactive blue dye in the cone dyeing procedure: chain bond fusion agent FF: 1wt.%, soda: 20g / L, the pH value of the working solution is 11; the cone dyeing temperature is 75°C, and the dyeing time is 90min; (2) The weaving procedure, the speed is 600r / min, the tension is 2000N, and the stretching is 200°; (3) The singeing procedure, the speed is 100m / min, and the flame intensity is 7bar; (4) Desizing process, padding desizing working solution: desizing enzyme DS-HT: 2 g / L, refining agent XC-J: 2 g / L, penetrant WR-03: 1 g / L; speed 100 m / min, washing temperature 90℃, stacking time 3 min, steaming box temperature 90℃; (5) Tentering process, padding silicone softener SL: 20 g / L, overfeed -1%, oven temperature 90℃; (6) Pre-shrinking process, rubber blanket temperature: 90℃, woolen blanket temperature: 90℃, speed: 40 m / min.

[0025] Example 3 Select sky blue fabric, 2 / 1 twill, warp and weft yarn count 60 / 2, 100% G100 tencel fabric, warp density 155 root / inch, weft density 118 root / inch.

[0026] The method for improving the fibrillation of the tencel yarn-dyed fabric comprises the following processes: Cone dyeing→weaving→singeing→desizing→tentering→pre-shrinking; (1) Cone dyeing process, dyeing working solution containing reactive blue dye: chain bond fusion agent FF: 2wt.%, sodium carbonate: 10 g / L, working solution pH value 10; cone dyeing temperature: 80℃, dyeing time: 80 min; (2) Weaving process, speed 550 r / min, tension 2200 N, stretch 270°; (3) Singeing process, speed 95 m / min, flame intensity 9 bar; (4) Desizing process, padding desizing working solution: desizing enzyme DS-HT: 5 g / L, refining agent XC-J: 5 g / L, penetrant WR-03: 2 g / L; speed 95 m / min, washing temperature 95℃, stacking time 5 min, steaming box temperature 95℃; (5) Tentering process, padding silicone softener SL: 10 g / L, overfeed +2%, oven temperature 110℃; (6) Pre-shrinking process, rubber blanket temperature: 110℃, woolen blanket temperature: 110℃, speed: 50 m / min.

[0027] Comparative Example 1 Select sky blue fabric, 2 / 1 twill, warp and weft yarn count 60 / 2, 100% G100 tencel fabric, warp density 160 root / inch, weft density 120 root / inch.

[0028] The comparative example and example 1 do not need to introduce chain bond fusion agent FF in the cone dyeing link, and the tencel is processed by using the original process, and the original processing process of the tencel comprises the following processes: Cone dyeing→ weaving→ singeing→ desizing→ resin finishing and tentering→ baking→ washing→ soft finishing and tentering→ preshrinking; (1) Cone dyeing process, dyeing working solution containing reactive blue dye: soda ash: 15 g / L, working solution pH value is 9; Cone dyeing temperature: 85°C, dyeing time: 90 min; (2) Weaving process, speed 600 r / min, tension 2200 N, stretch 300°; (3) Singeing process, speed 100 m / min, flame intensity 8 bar; (4) Desizing process, padding desizing working solution: desizing enzyme DS-HT: 3 g / L, refining agent XC-J: 3 g / L, penetrating agent WR-03: 2 g / L; speed 90 m / min, washing temperature 90°C, stacking time 3 min, steaming box temperature 95°C; (5) Resin finishing and tentering process, resin finishing agent SW: 150 g / L, oven temperature: 95°C, speed 35 m / min; (6) Baking process, temperature 150°C, speed 40 m / min; (7) Washing process, temperature 90°C, speed 50 m / min; (8) Soft finishing and tentering process, padding silicone oil softening agent SL: 15 g / L, overfeed +0.5%, oven temperature 100°C; (9) Preshrinking process, rubber blanket temperature: 100°C, wool blanket temperature: 100°C, speed: 50 m / min.

[0029] Comparative Example 2 Select sky blue fabric, 2 / 1 twill, warp and weft yarn count 120 / 2, 100% LF Tencel fabric, warp density 180 ends / inch, weft density 160 ends / inch.

[0030] Compared with Example 2, this comparative example does not need to introduce chain bond fusion agent FF in the cone dyeing link, and uses the original process to process Tencel, and the original Tencel processing process comprises the following processes: Cone dyeing→ weaving→ singeing→ desizing→ resin finishing and tentering→ baking→ washing→ soft finishing and tentering→ preshrinking; (1) Cone dyeing process, dyeing working solution containing reactive blue dye: soda ash: 20 g / L, working solution pH value is 11; Cone dyeing temperature: 90°C, dyeing time: 90 min; (2) Weaving process, speed 600 r / min, tension 2400 N, stretch 300°; (3) Singeing process, speed 98 m / min, flame intensity 10 bar; (4) Desizing process, padding desizing working solution: desizing enzyme DS-HT: 5 g / L, refining agent XC-J: 5 g / L, penetrant WR-03: 3 g / L; speed 95 m / min, washing temperature 90℃, stacking time 10 min, steaming box temperature 98℃; (5) Resin finishing tentering process, resin finishing agent SW: 110 g / L, oven temperature: 95℃, speed 30 m / min; (6) Baking process, temperature 140℃, speed 40 m / min; (7) Washing process, temperature 90℃, speed 45 m / min; (8) Soft finishing tentering process, padding silicone oil softener SL: 20 g / L, overfeed +0.8%, oven temperature 95℃; (9) Pre-shrinking process, rubber blanket temperature: 95℃, wool blanket temperature: 95℃, speed: 45 m / min.

[0031] Comparative Example 3 This comparative example is the same as Example 1, except that in the cone dyeing process, the cone dyeing temperature is 60℃, and the rest of the processes and parameters are the same as Example 1.

[0032] Comparative Example 4 This comparative example is the same as Example 1, except that in the cone dyeing process, the cone dyeing temperature is 95℃, and the rest of the processes and parameters are the same as Example 1.

[0033] Comparative Example 5 This comparative example is the same as Example 1, except that in the cone dyeing process, the soda ash dosage is 30 g / L, and the pH value of the dyeing working solution is 12, and the rest of the processes and parameters are the same as Example 1.

[0034] Comparative Example 6 Select sky blue fabric, 2 / 1 twill weave, warp and weft yarn count 60 / 2, 100% G100 tencel fabric, warp density 160 ends / inch, weft density 120 ends / inch.

[0035] The method for improving the fibrillation of tencel yarn-dyed fabric comprises the following processes: cone dyeing → weaving → singeing → desizing → tentering → pre-shrinking; (1) Cone dyeing process, dyeing working solution containing reactive blue dye: chain fusion agent FF: 3 wt.%, soda ash: 20 g / L, working solution pH value 11; cone dyeing temperature: 90℃, dyeing time: 95 min; (2) Weaving process, speed 500 r / min, tension 2400 N, stretch 320°; (3) the singeing process, the speed is 90 m / min, the flame intensity is 11 bar; (4) the desizing process, the padding desizing working solution: desizing enzyme DS-HT: 9 g / L, refining agent XC-J: 9 g / L, penetrant WR-03: 3 g / L; the speed is 90 m / min, the washing temperature is 95℃, the standing time is 10 min, the steaming box temperature is 100℃; (5) the tentering process, the padding silicone softener SL: 5 g / L, the overfeed is +5%, the oven temperature is 130℃; (6) the pre-shrinking process, the rubber blanket temperature: 120℃, the woolen blanket temperature: 120℃, the speed: 60 m / min; Comparative Example 7 The blue fabric is selected, the weave is 2 / 1 twill, the warp and weft yarn count is 60 / 2 count, the 100% G100 tencel fabric, the warp density is 160 roots / inch, the weft density is 120 roots / inch.

[0036] The method for improving the fibrillation of the tencel yarn-dyed fabric comprises the following processes: package dyeing→weaving→singeing→desizing→tentering→pre-shrinking; (1) the package dyeing process, the dyeing working solution containing reactive blue dye: chain bond fusion agent FF: 3.5 wt.%, anhydrous sodium carbonate: 20 g / L, the working solution pH value is 11; the package dyeing temperature: 90℃, the dyeing time: 90 min; (2) the weaving process, the speed is 500 r / min, the tension is 2400 N, the stretch is 320°; (3) the singeing process, the speed is 90 m / min, the flame intensity is 11 bar; (4) the desizing process, the padding desizing working solution: desizing enzyme DS-HT: 9 g / L, refining agent XC-J: 9 g / L, penetrant WR-03: 3 g / L; the speed is 90 m / min, the washing temperature is 95℃, the standing time is 10 min, the steaming box temperature is 100℃; (5) the tentering process, the padding silicone softener SL: 5 g / L, the overfeed is +5%, the oven temperature is 130℃; (6) the pre-shrinking process, the rubber blanket temperature: 120℃, the woolen blanket temperature: 120℃, the speed: 60 m / min.

[0037] The products prepared from the examples and comparative examples were tested, and the test results are shown in Table 1 below. The test indicators of the finished fabric are as follows: the fibrillation degree of the fabric is evaluated, and the degree of fibrillation is represented by the fibrillation index F.I. (i.e. Fibrillation Index). The instrument used is a Martindale Abrasion Tester. The fibrillation index is generally divided into 0-10 levels. The higher the level, the more serious the fibrillation. Generally, when the fibrillation degree is > 2, the appearance of the fabric is already poor, which seriously affects the appearance of the fabric, and is judged as unqualified for this indicator. The warp and weft breaking strength is tested according to ASTM D5035-11 (2019). The warp and weft tear strength is tested according to ASTM D1424-21. The formaldehyde content is tested according to the method in JIS L1041:2011. The color difference of the product and the standard sample is detected under D65 light source. The more, the better the hand feel.

[0038] Table 1 Test results of examples and comparative examples

[0039] From the test results in Table 1, it can be seen that: by comparing Comparative Example 1-2 and Example 1-2, it is found that Comparative Example 1-2 does not add a chain bond fusion agent. Although the fibrillation index value is low, it relies on the subsequent resin finishing process, which is complex, has obvious formaldehyde residue, and because the resin finishing only acts on the surface, it cannot enhance the internal bonding force of the fiber, but only forms a solidification film on the surface of the fiber, resulting in stiff fabric and poor hand feel. In addition, the original process is complex and needs to go through two stentering processes.

[0040] By comparing Comparative Example 3, Comparative Example 4 and Example 1, it is found that low temperature and too tight fiber structure result in insufficient crosslinking reaction of the chain bond fusion agent with cellulose, and insufficient adhesion of the fibrils, which causes severe fibrillation of the product. Too high temperature will damage the internal structure of the fiber, accelerate the fracture of the fiber, and weaken the strength of the product.

[0041] By comparing Comparative Example 5 and Example 1, it is found that the use of 30 g / L of soda ash in a moderate alkaline environment is conducive to the crosslinking reaction of the chain bond fusion agent with the fiber. However, a strong alkaline environment will damage the fiber structure and exacerbate the fibrillation of the product, resulting in poor hand feel of the product.

[0042] By comparing Comparative Example 6 and Example 1, the fibrillation is enhanced, and the hand feel and breaking strength performance decrease. The reason is that even if the crosslinking reaction occurs effectively, long-time dyeing will cause the fiber to swell excessively, which in turn causes the performance of the product to decrease. Although Comparative Example 7 increases the amount of chain bond fusion agent, the excessive amount of fusion agent causes uneven local crosslinking of the fiber, which in turn causes the breaking strength performance of the product to decrease.

Claims

1. A method of improving the fibrillation of spun-dyed jersey fabric, characterized by, It comprises the following steps: Skein dyeing→weaving→singeing→desizing→tentering→pre-shrinking. Among them: The dyeing working solution of the skein dyeing process contains 1wt.%-3wt.% of chain bond fusion agent FF and 5-20g / L of soda, and the pH value of the working solution is 9-11; the skein dyeing temperature is 75-90℃, and the dyeing time is 70-90min.

2. The method for improving the fibrillation of spun-dyed lyocell fabric according to claim 1, characterized in that, The weaving process has a speed of 500-600r / min, a tension of 2000-2400N, and a stretch of 200-320°.

3. The method for improving fibrillation of spun-dyed lyocell yarn fabric according to claim 1, characterized in that, The singeing process has a speed of 90-100m / min, and a flame intensity of 7-11bar.

4. The method for improving fibrillation of spun-dyed lyocell yarn fabric according to claim 1, characterized in that, The desizing process uses a padding desizing working solution containing 2-9g / L of desizing enzyme, 2-9g / L of refining agent, and 1-3g / L of penetrating agent.

5. The method for improving fibrillation of spun-dyed lyocell yarn fabric according to claim 1, wherein the fabric is subjected to a finishing process. The desizing process has a speed of 90-100m / min, a washing temperature of 90-95℃, a stacking time of 3-10min, and a steaming box temperature of 90-100℃.

6. The method for improving the fibrillation of spun-dyed lyocell fabric according to claim 1, characterized in that, The tentering process uses a padding silicone oil softener at 5-20g / L, has an overfeed of 1.0%-5.0%, and has an oven temperature of 90-130℃.

7. The method for improving fibrillation of spun-dyed lyocell yarn fabric according to claim 1, wherein the fabric is subjected to a finishing process. The pre-shrinking process has a rubber blanket temperature of 90-120℃, a wool blanket temperature of 90-120℃, and a speed of 40-60m / min.

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