Manufacturing process of acetic acid mulberry silk fabric

Abstract

The invention relates to the technical field of fabric manufacturing, and discloses an acetic acid mulberry silk fabric manufacturing process, which comprises the following steps: S1, unrolling a green body: firstly cleaning the surface of an unrolling device and a guide roller to ensure that no sundries and stains exist, S2, pre-treating by an overflow machine, and dyeing: respectively carrying out low-alkali reactive dyeing and low-temperature disperse dyeing, s4, flexible treatment: controlling the treatment time, temperature and humidity adjusting function to promote permeation of a softening agent, S5, water treatment, and S6, shaping: firstly cleaning a working area of a shaping machine to prevent impurities from polluting the fabric, and placing the fabric to be shaped at a feeding end of the shaping machine to ensure opening of the fabric. Through the action of protease and sodium carbonate, impurities can be removed, the fabric is purer, the gloss and hand feeling are improved, meanwhile, the hygroscopicity is enhanced, two-bath dyeing is adopted, the color can be brighter, more uniform and firmer, different color requirements are met, and after high-temperature setting, the effect of preventing a silk woven product from fading can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of fabric production, in particular to a process for producing acetate mulberry silk fabric. Background Art

[0002] Silk fabric is made from silk fibers in cocoons, and is widely loved for its natural luster, soft touch and excellent breathability. The main characteristics of silk fabrics, acetate silk fabric is a fabric that mixes mulberry silk with acetate fiber (usually cellulose acetate) or treats it with acetate fiber as the base material. This fabric combines the natural advantages of silk and the improved properties of acetate fiber.

[0003] In the prior art, desizing and bleaching are usually used. However, desizing and bleaching cannot effectively remove stains and impurities during production, resulting in the silk fabric produced having a rough feel due to residual impurities, and failing to reflect the natural luster and softness of acetate mulberry silk fabric. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a process for producing acetate mulberry silk fabric, which solves the problems of rough hand feel and reduced natural gloss and softness caused by incomplete impurity treatment.

[0005] To achieve the above objectives, the present invention is implemented through the following technical scheme: A process for producing acetate mulberry silk fabric comprises the following steps:

[0006] S1. Unwinding of green blanks: first clean the surface of the unwinding equipment and the guide roller to ensure that there are no debris and stains, place the rolled green blanks on the reel support of the unwinding machine, ensure that the center of the reel is concentric with the reel axis of the unwinding machine, fix the reel to prevent it from moving during the unwinding process, adjust the speed and tension parameters of the unwinding equipment, turn on the power of the unwinding machine, slowly start the equipment, and start the green blanks to start unwinding. The unwinding equipment includes an unwinding machine;

[0007] S2, overflow machine pre-treatment: first pour the treatment material 1 into the auxiliary material barrel, stir it thoroughly and then slowly put it into the machine cylinder, then melt the treatment material 2 and put it into the machine cylinder, heat it to 55 degrees and run it for 60 minutes to take samples, then discharge the water and boil it with hot water to kill the enzyme activity, heat it to 80 degrees and run it for 10 minutes, finally discharge the flowing alternating water and drain it, and enter the dyeing process, the treatment material 1 includes protease and penetrant, and the treatment material 2 includes soda ash;

[0008] S3. Dyeing: The dyeing methods are low-alkali active dyeing and low-temperature disperse dyeing. The low-alkali active dyeing step is to put the fabric into the dyeing equipment, set the temperature of the dyeing equipment to 40-45 degrees, then add auxiliary agent 1, heat it to 70-75 degrees, keep it warm for 50-55 minutes, cut the sample, compare the color and add dye as needed to achieve the required color, cool the running water to 60-65 degrees and drain; low-temperature disperse dyeing step, the temperature of the disperse dyeing equipment is 40-45 degrees and then add auxiliary agent 2, run for 20-25 minutes, then heat it to 90-100 degrees, keep it warm for 50-55 minutes to cut the sample, re-fill water and add reducing cleaning agent, heat it to 95-100 degrees and wash for 15-20 minutes. After cleaning, the water is clean and out of the tank.

[0009] S4, flexible treatment: first clean the inside of the flexible equipment to avoid contamination by impurities, place the pre-treated fabric flatly into the flexible equipment, apply the prepared softener evenly to the fabric through the nozzle of the equipment, and control the treatment time, temperature and humidity adjustment functions according to the material, thickness of the fabric and the characteristics of the softener to promote the penetration of the softener.

[0010] S5. Water treatment: First check whether the inner tank of the dehydration equipment is clean and free of debris to avoid scratching the fabric or affecting the dehydration effect. Place the fabric to be dehydrated evenly into the inner tank of the dehydrator, and try to distribute the fabric evenly inside the inner tank to avoid excessive weight. Then close the protective cover and run the dehydration equipment. Stop the dehydration equipment after the dehydration is completed. After the dehydrator stops rotating completely, open the lid and carefully take out the dehydrated fabric.

[0011] S6. Setting: First clean the working area of ​​the setting machine to prevent impurities from contaminating the fabric. Place the fabric to be set at the feeding end of the setting machine, ensure that the beginning of the fabric is flat and in the correct position, set the temperature, speed, overfeed, and tension parameters of the setting machine, press the start button to start the setting machine. In the heating area of ​​the setting machine, the fabric is affected by the set temperature, and the fiber structure changes, thereby achieving stability in size and shape. After heating and setting, the fabric enters the cooling area and cools rapidly to fix the size and shape of the fabric. The set fabric is discharged from the discharging end of the setting machine. After the work is completed, turn off the power of the setting machine and perform necessary cleaning and maintenance.

[0012] Preferably, in S1, the unwinding equipment includes an unwinder, and the tension of the unwinder is 10-30N, and the speed of the unwinder is 5-20 m / min.

[0013] Preferably, in S2, treatment material one includes protease and permeabilizing agent, the amount of protease is 0.5g-1g / l, the amount of permeabilizing agent is 1g-2g / l, and the bath ratio is 1:20. Treatment material two includes soda ash, the amount of soda ash is 3g-5g / l, the rotation speed of the auxiliary material barrel is 200-500 rpm, and the temperature is 30-45 degrees.

[0014] Preferably, in S3, the auxiliary agent 1 includes a degreasing agent or a leveling agent, the amount of the degreasing agent and the leveling agent is 0.5-1g / l, the dyeing equipment includes a dyeing tank, the temperature of the dyeing tank is 70-75 degrees, the insulation time is 50-55 minutes, the low-alkali active dye is soda ash, and the amount of soda ash is 2-3g / l.

[0015] Preferably, in S3, the auxiliary agent 2 includes an antistatic agent or a dispersant, the amount of the antistatic agent or the dispersant is 0.5-1g / l, the disperse dyeing equipment includes an overflow machine, the temperature of the overflow machine is 90-100 degrees, and the insulation time is 50-55 minutes.

[0016] Preferably, in S4, the flexible equipment includes a fabric softening finishing machine, the temperature of the fabric softening finishing machine is 20-100 degrees, the speed is 5-50 meters / minute, the spray pressure is 0.5-2MPa, and the spray volume is 10-50mL / m 2 .

[0017] Preferably, in S5, the dehydration equipment includes an industrial dehydrator, the rotation speed of the industrial dehydrator is 500-3000 rpm, the barrel diameter of the industrial dehydrator is 600-1500 mm, and the depth of the industrial dehydrator is 300-800 mm.

[0018] Preferably, in S6, the dehydration equipment includes a steam setting machine or a hot air setting machine, the temperature of the hot air setting machine is 150-220 degrees, the temperature of the steam setting machine is 100-130 degrees, the speed of the steam setting machine and the hot air setting machine is 10-50 meters / minute, the overfeed amount of the steam setting machine and the hot air setting machine is 5%-20%, and the tension of the steam setting machine and the hot air setting machine is 1-10 kilograms.

[0019] The present invention provides a process for producing acetate mulberry silk fabrics. The process has the following beneficial effects:

[0020] 1. The present invention can remove impurities through the action of protease and soda ash, make the fabric purer, improve the gloss and feel, and enhance the hygroscopicity. The two-bath dyeing method can make the color brighter, more uniform and firmer, meet different color requirements, and after high-temperature setting, it can prevent the silk products from fading.

[0021] 2. The present invention makes the fabric softer through machine softening, which enhances the comfort when in contact with the skin and is suitable for the production of various clothing and household items. The water absorption step can quickly remove excess water in the fabric, providing convenience for subsequent processing and use, and also helping to maintain the shape and performance of the fabric.

[0022] 3. The present invention uses the high temperature of the setting machine to set the shape, and the temperature of the silk product causes the fiber structure to change, thereby achieving stability in size and shape. After the product is formed, the color can be stabilized to prevent fading. The high temperature of the setting machine can quickly make the fabric fibers reach the state required for setting, speeding up the production process. The 20% overfeeding amount helps to increase the width of the fabric or improve the warp and weft density of the fabric, thereby better controlling the size of the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a flow chart of the present invention. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Embodiment 1:

[0026] Please see attached Figure 1 The embodiment of the present invention provides a process for producing acetate silk fabric, comprising the following steps:

[0027] S1. Unwinding of green billet: First, clean the surface of the unwinding equipment and the guide roller to ensure that there are no debris and stains. Place the rolled green billet on the reel support of the unwinding machine, ensure that the center of the reel is concentric with the reel axis of the unwinding machine, fix the reel to prevent it from moving during the unwinding process, adjust the speed and tension parameters of the unwinding equipment, turn on the power of the unwinding machine, and slowly start the equipment to allow the green billet to begin to unfold. The unwinding equipment includes the unwinding machine;

[0028] S2, overflow machine pre-treatment: first pour the treatment material 1 into the auxiliary material barrel, stir it thoroughly and then slowly put it into the machine cylinder, then melt the treatment material 2 and put it into the machine cylinder, heat it to 55 degrees and run it for 60 minutes to take samples, then discharge the water and boil it with hot water to kill the enzyme activity, heat it to 80 degrees and run it for 10 minutes, finally discharge the flowing alternating water and drain it, and enter the dyeing process. Treatment material 1 includes protease and penetrant, and treatment material 2 includes soda ash;

[0029] S3. Dyeing: The dyeing methods are low-alkali active dyeing and low-temperature disperse dyeing. The low-alkali active dyeing step is to put the fabric into the dyeing equipment, set the temperature of the dyeing equipment to 40-45 degrees, then add auxiliary agent 1, heat it to 70-75 degrees, keep it warm for 50-55 minutes, cut the sample, compare the color and add dye as needed to achieve the required color, cool the running water to 60-65 degrees and drain; low-temperature disperse dyeing step, the temperature of the disperse dyeing equipment is 40-45 degrees and then add auxiliary agent 2, run for 20-25 minutes, then heat it to 90-100 degrees, keep it warm for 50-55 minutes to cut the sample, re-fill water and add reducing cleaning agent, heat it to 95-100 degrees and wash for 15-20 minutes. After cleaning, the water is clean and out of the tank.

[0030] S4, flexible treatment: first clean the inside of the flexible equipment to avoid contamination by impurities, place the pre-treated fabric flatly into the flexible equipment, apply the prepared softener evenly to the fabric through the nozzle of the equipment, and control the treatment time, temperature and humidity adjustment functions according to the material, thickness of the fabric and the characteristics of the softener to promote the penetration of the softener.

[0031] S5. Water treatment: First check whether the inner tank of the dehydration equipment is clean and free of debris to avoid scratching the fabric or affecting the dehydration effect. Place the fabric to be dehydrated evenly into the inner tank of the dehydrator, and try to distribute the fabric evenly inside the inner tank to avoid excessive weight. Then close the protective cover and run the dehydration equipment. Stop the dehydration equipment after the dehydration is completed. After the dehydrator stops rotating completely, open the lid and carefully take out the dehydrated fabric.

[0032] S6. Setting: First clean the working area of ​​the setting machine to prevent impurities from contaminating the fabric. Place the fabric to be set at the feeding end of the setting machine, ensure that the beginning of the fabric is flat and in the correct position, set the temperature, speed, overfeed, and tension parameters of the setting machine, press the start button to start the setting machine. In the heating area of ​​the setting machine, the fabric is affected by the set temperature, and the fiber structure changes, thereby achieving stability in size and shape. After heating and setting, the fabric enters the cooling area and cools rapidly to fix the size and shape of the fabric. The set fabric is discharged from the discharging end of the setting machine. After the work is completed, turn off the power of the setting machine and perform necessary cleaning and maintenance.

[0033] In S1, the unwinding equipment includes an unwinder, and the tension of the unwinder is 10N, and the speed of the unwinder is 5 m / min.

[0034] The relatively small tension of 10N can prevent the fabric from being damaged by excessive stretching during the unwinding process, while the speed of 5m / min can ensure smooth unwinding, neither too fast to cause loss of control nor too slow to affect production efficiency. When in use, it can ensure that the relatively fragile silk rolls will not break due to excessive tension, nor will they fall off or skew due to too fast speed.

[0035] In S2, treatment material one includes protease and penetrant, the amount of protease is 0.5g / l, the amount of penetrant is 1g / l, according to the bath ratio of 1:20, treatment material two includes soda ash, the amount of soda ash is 3g / l, the rotation speed of the auxiliary material barrel is 200 rpm, and the temperature is 30 degrees.

[0036] Effectively remove impurities. Protease can decompose protein impurities on the surface of the fabric. The penetrant helps the treatment agent to better penetrate into the fabric, thereby more thoroughly removing stains and impurities, improving the cleanliness of the fabric and improving the fabric performance. Soda ash can adjust the pH value of the solution, which helps the fiber to expand and stretch, and improve the softness and feel of the fabric. The fixed bath ratio of 1:20 can ensure the relative stability of the treatment agent concentration, so that the effect of each treatment is more consistent. The speed of the auxiliary material barrel at 200 rpm helps to evenly mix the treatment agent. The temperature of 30 degrees can accelerate the chemical reaction to a certain extent and improve the treatment efficiency.

[0037] In S3, the auxiliary agent 1 includes a degreasing agent, the amount of the degreasing agent is 0.5g / l, the dyeing equipment includes a dyeing tank, the temperature of the dyeing tank is 70 degrees, the insulation time is 50 minutes, and the low-alkali active dye is soda ash, the amount of soda ash is 2g / l.

[0038] 0.5g / l of degreasing agent helps to effectively remove grease and oil stains on the fabric, providing a clean surface for the subsequent dyeing process and improving the uniformity and color fastness of dyeing. The dyeing temperature of 70 degrees and the holding time of 50 minutes can make the dye fully penetrate and combine with the fiber, so as to obtain a brighter, more uniform and firmer dyeing effect. 2g / l of soda ash as part of the low-alkali active dye helps to adjust the pH of the dye solution, create a suitable dyeing environment, promote the reaction between the dye and the fiber, and improve the efficiency and quality of dyeing.

[0039] In S3, the auxiliary agent 2 includes an antistatic agent, the amount of the antistatic agent is 0.5 / l, and the disperse dyeing equipment includes an overflow machine, the temperature of the overflow machine is 90 degrees, and the insulation time is 50 minutes.

[0040] The 0.5g / l antistatic agent can effectively reduce the accumulation of static electricity on the fabric surface, making the fabric less likely to absorb dust during use and improving the comfort of wearing and use. The overflow machine can make the fabric fully flow and tumble during the dyeing process to ensure uniform distribution of the dye, thereby obtaining a more uniform dyeing effect. The temperature of 90 degrees and the insulation time of 50 minutes help the dye to fully diffuse and penetrate into the fiber, improving the depth and fastness of the dyeing.

[0041] S4 medium and flexible equipment includes a fabric softening finishing machine. The temperature of the fabric softening finishing machine is 20 degrees, the speed is 5 meters / minute, the spray pressure is 0.5MPa, and the spray volume is 10mL / m 2 .

[0042] Gentle treatment: 20 degrees is a relatively low temperature, which causes less damage to fabric fibers. It is suitable for a variety of sensitive fabrics and can maintain their original performance. Moderate treatment speed: 5 meters / minute speed ensures a certain production efficiency while allowing the softener enough time to fully react with the fabric. The spray pressure of 0.5MPa and 10mL / m 2 The appropriate spray amount can ensure that the softener is evenly covered on the fabric surface. It will not be too concentrated due to excessive pressure, nor will it affect the uniformity of the softening effect due to too little spray amount.

[0043] In S5, the dehydration equipment includes an industrial dehydrator, the rotation speed of the industrial dehydrator is 500 rpm, the barrel diameter of the industrial dehydrator is 600 mm, and the depth of the industrial dehydrator is 300 mm.

[0044] The rotation speed of 500 rpm can generate greater centrifugal force, thereby quickly and effectively throwing out the moisture in the fabric and improving the dehydration efficiency. At 500 rpm, the fabric will not be damaged, squeezed or deformed due to the high force caused by the high rotation speed. The barrel has a diameter of 600 mm and a depth of 300 mm. This size can accommodate a certain amount of fabric for dehydration processing, and at the same time it will not be too large to cause waste of space or inconvenience in operation.

[0045] In S6, the dehydration equipment includes a steam setting machine, the temperature of the steam setting machine is 100 degrees, the speed of the steam setting machine is 10 meters / minute, the overfeed amount of the steam setting machine is 5%, and the tension of the steam setting machine is 1 kilogram.

[0046] The steam temperature of 100 degrees can make the fabric fibers heat-set to a certain extent, so as to adjust the size and shape. At the same time, for some fabrics that are not resistant to high temperatures, this temperature is relatively mild, which reduces the risk of fiber damage. The speed of 10 meters / minute can ensure that the fabric has enough time to be treated in the steam environment, ensuring the stability of the setting effect. The overfeeding amount of 5% can increase the width of the fabric or adjust the warp and weft density of the fabric to a certain extent, so that its size is more in line with the requirements. The tension of 1 kg is relatively small, which helps to maintain the natural state of the fabric and reduce the deformation or stretching of the fabric caused by excessive tension.

[0047] Compared with the first embodiment, the second embodiment is different in the following steps:

[0048] In S1, the unwinding equipment includes an unwinding machine, and the tension of the unwinding machine is 30N, and the speed of the unwinding machine is 20 m / min.

[0049] In S2, treatment material one includes protease and penetrant, the amount of protease is 1g / l, the amount of penetrant is 2g / l, according to the bath ratio of 1:20, treatment material two includes soda ash, the amount of soda ash is 5g / l, the rotation speed of the auxiliary material barrel is 500 rpm, and the temperature is 45 degrees.

[0050] In S3, the auxiliary agent 1 includes a leveling agent, the amount of the leveling agent is 1g / l, the dyeing equipment includes a dyeing tank, the temperature of the dyeing tank is 75 degrees, the insulation time is 55 minutes, and the low-alkali active dye is soda ash, the amount of the soda ash is 3g / l.

[0051] In S3, the auxiliary agent 2 includes a dispersant, the amount of the dispersant is 1 g / l, the disperse dyeing equipment includes an overflow machine, the temperature of the overflow machine is 100 degrees, and the insulation time is 55 minutes.

[0052] In S4, the flexible equipment includes a fabric softening finishing machine, the temperature of the fabric softening finishing machine is 100 degrees, the speed is 50 meters / minute, the spray pressure is 2MPa, and the spray volume is 50mL / m 2 .

[0053] In S5, the dehydration equipment includes an industrial dehydrator, the rotation speed of the industrial dehydrator is 3000 rpm, the barrel diameter of the industrial dehydrator is 1500 mm, and the depth of the industrial dehydrator is 800 mm.

[0054] In S6, the dehydration equipment includes a hot air setting machine, the temperature of the hot air setting machine is 220 degrees, the temperature of the steam setting machine is 130 degrees, the speed of the hot air setting machine is 50 meters per minute, the overfeed amount of the hot air setting machine is 20%, and the tension of the hot air setting machine is 10 kilograms.

[0055] Embodiment 1 Embodiment 2 Comparative Example 1 Comparative Example 2 Protease 0.5g / l 1g / l No Addition 1g / l Penetrant 1g / l 2g / l 1g / l 3g / l soda ash 3g / l 5g / l 5g / l No Addition Impurity content 20％ 15％ 40％ 50％

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A process for producing acetic acid mulberry silk fabric, characterized in that: The following steps are involved: S1. Unwinding of green billet: First clean the surface of the unwinding equipment and the guide roller to ensure that there are no debris and stains. Place the rolled green billet on the reel support of the unwinding machine, make the reel center concentric with the reel axis of the unwinding machine, fix the reel, and adjust Unwinding Machine Speed ​​and tension parameters ， Turn on the power of the unwinder to start unwinding the green billet; S2. Pre-treatment of overflow machine: First, pour the treatment material into the auxiliary material barrel and stir it thoroughly, then slowly put it into the machine cylinder, then melt the treatment material and put it into the machine cylinder, and heat it to 50-60 Run after 50-70 The sample was taken after 10 minutes, and then the water was boiled in hot water to kill the enzyme activity, and the temperature was raised to 80 -90 Degree running 10 -20 Minutes, finally the alternating water flows out and then the water is drained to enter the dyeing process; S3. Dyeing: The dyeing methods are low-alkali active dyeing and low-temperature disperse dyeing. The low-alkali active dyeing step is to put the fabric into the dyeing equipment and set the temperature of the dyeing equipment to 40-45 degrees. ， Then add the additive 1, raise the temperature to 70-75 degrees, keep warm for 50-55 minutes, cut the sample, compare the color and add dye as needed to achieve the desired color, cool the running water to 60-65 degrees and drain; The temperature of the disperse dyeing equipment is 40-45 degrees, then add auxiliary agent 2, run for 20-25 minutes, heat it up to 90-100 degrees, keep it warm for 50-55 minutes, cut the sample, add water again, add reducing cleaning agent, heat it up to 95-100 degrees, and clean it for 15-20 minutes. After cleaning, the water is clean and out of the tank ； S4, flexible treatment: first clean the inside of the flexible device, put the pre-treated fabric flat into the flexible device, and then Flexible equipment The nozzle evenly applies the prepared softener to the fabric. According to the material, thickness and characteristics of the fabric, the time, temperature and humidity of the treatment are controlled to promote the penetration of the softener. ； S5. Water treatment: First check whether the inner tank of the dehydration equipment is clean and free of debris, evenly place the fabrics to be dehydrated into the inner tank of the dehydrator so that the fabrics are evenly distributed inside the inner tank, then close the protective cover to run the dehydration equipment, stop the dehydration equipment after the dehydration is completed, and open the cover after the dehydrator stops rotating completely to take out the dehydrated fabrics. S6. Setting: First clean the working area of ​​the setting machine, place the fabric to be set on the feeding end of the setting machine, ensure that the beginning of the fabric is flat and in the correct position, set the temperature, speed, overfeeding amount, and tension parameters of the setting machine, press the start button to start the setting machine. In the heating area of ​​the setting machine, the fabric is affected by the set temperature, and the fiber structure changes, thereby achieving stability in size and shape. After heating and setting, the fabric enters the cooling area and cools rapidly to fix the size and shape of the fabric. The set fabric is discharged from the discharging end of the setting machine. After the work is completed, turn off the power of the setting machine and perform necessary cleaning and maintenance.

2. The process for producing acetate silk fabric according to claim 1, characterized in that: In S1, the tension of the unwinding machine is 10-30N, and the speed of the unwinding machine is 5-20 m / min.

3. The process for producing acetate silk fabric according to claim 1, characterized in that: In S2, treatment material one includes protease and penetrant, the amount of protease is 0.5g-1g / l, the amount of penetrant is 1g-2g / l, according to the bath ratio of 1:20, treatment material two includes soda ash, the amount of soda ash is 3g-5g / l, the rotation speed of the auxiliary material barrel is 200-500 rpm, and the temperature is 30-45 degrees.

4. The process for producing acetate silk fabric according to claim 1, characterized in that: In S3, the auxiliary agent 1 includes a degreasing agent or a leveling agent, the amount of the degreasing agent and the leveling agent is 0.5-1g / l, the dyeing equipment includes a dyeing tank, the temperature of the dyeing tank is 70-75 degrees, the insulation time is 50-55 minutes, the low-alkali active dye is soda ash, and the amount of soda ash is 2-3g / l.

5. The process for producing acetate silk fabric according to claim 1, characterized in that: In S3, the auxiliary agent 2 includes an antistatic agent or a dispersant, the amount of the antistatic agent or the dispersant is 0.5-1g / l, the disperse dyeing equipment includes an overflow machine, the temperature of the overflow machine is 90-100 degrees, and the insulation time is 50-55 minutes.

6. The process for producing acetate silk fabric according to claim 1, characterized in that: In S4, the flexible equipment includes a fabric softening finishing machine, the temperature of the fabric softening finishing machine is 20-100 degrees, the speed is 5-50 meters / minute, the spray pressure is 0.5-2MPa, and the spray volume is 10-50mL / m 2 .

7. The process for producing acetate silk fabric according to claim 1, characterized in that: In S5, the dehydration equipment includes an industrial dehydrator, the rotation speed of the industrial dehydrator is 500-3000 rpm, the barrel diameter of the industrial dehydrator is 600-1500 mm, and the depth of the industrial dehydrator is 300-800 mm.

8. The process for producing acetate silk fabric according to claim 1, characterized in that: In S6, the dehydration equipment includes a steam setting machine or a hot air setting machine, the temperature of the hot air setting machine is 150-220 degrees, the temperature of the steam setting machine is 100-130 degrees, the speed of the steam setting machine and the hot air setting machine is 10-50 meters per minute, the overfeed amount of the steam setting machine and the hot air setting machine is 5%-20%, and the tension of the steam setting machine and the hot air setting machine is 1-10 kilograms.

Images