CN110331601B

CN110331601B - Printing process for woven man-made cotton cloth

Info

Publication number: CN110331601B
Application number: CN201910717799.9A
Authority: CN
Inventors: 李传海
Original assignee: Shaoxing Haitong Printing & Dyeing Co ltd
Current assignee: Shaoxing Haitong Printing & Dyeing Co ltd
Priority date: 2019-08-05
Filing date: 2019-08-05
Publication date: 2021-11-12
Anticipated expiration: 2039-08-05
Also published as: CN110331601A

Abstract

The invention discloses a printing process of woven rayon cotton cloth, which relates to the technical field of printing and comprises the following steps: s1: pretreating gray fabric; s2: washing with water; s3: presetting; s4: printing; s5: steaming; s6: washing with water for the second time; s7: shaping; and (5) obtaining the finished product of the cotton cloth after the 7 steps. The preparation method has the advantages of improving the printing fastness and reducing the using amount of washing water.

Description

Printing process for woven man-made cotton cloth

Technical Field

The invention relates to the technical field of cloth printing, in particular to a woven cotton cloth printing process.

Background

The rayon fabric is also called artificial cotton, is known as viscose fiber, belongs to artificial fiber, has the hand feeling similar to cotton, and has lower price than cotton. The rayon cloth is widely applied to the textile printing and dyeing industry.

The printing process of the rayon cloth generally comprises the following steps: pretreating gray fabric, washing, presetting, printing, steaming and fixing color, washing and secondary setting. The printing paste used by the printing of the cotton cloth needs to overprint the cotton cloth for a plurality of times in the printing process of the cotton cloth to print patterns on the cotton cloth with good quality. After printing and color fixing, the washing and desizing treatment of the cotton cloth needs to be carried out for a plurality of times in the prior art, and the waste of water resources is serious.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a printing process for woven cotton cloth.

The above object of the present invention is achieved by the following technical solutions:

a printing process of woven man-made cotton cloth comprises the following steps:

s1: pretreating gray fabric, namely adding the gray fabric into pretreatment solution, stirring and soaking for 30-60 min, and controlling the temperature of the pretreatment solution at 80-95 ℃;

s2: washing, namely introducing the pretreated cloth into a washing machine, washing the cloth with hot water for 1 time, and then washing the cloth with cold water for 1 time;

s3: pre-setting, namely guiding the washed cloth into a setting machine for setting;

s4: printing, namely guiding the pre-shaped cloth into a printing machine, adding the prepared printing slurry on a screen printing plate, and overprinting for 2-3 times;

s5: steaming, namely spraying a first auxiliary agent on the cloth, introducing the printed cloth into a steaming machine for steaming and color fixing at the steaming temperature of 150-180 ℃ for 5-10 min, and spraying a second auxiliary agent on the cooled cloth;

s6: secondary washing, namely guiding the cloth after color fixation into a rope-shaped washing machine for desizing and washing, wherein a washing auxiliary agent is added in the desizing and washing process;

s7: shaping, and then shaping the fabric;

and (5) obtaining the finished product of the cotton cloth after the 7 steps.

By adopting the technical scheme, the pretreatment liquid is added into the pretreatment liquid during pretreatment of grey cloth to carry out pretreatment to remove impurities on the rayon fabric blank, then washing, presetting and printing are carried out according to conventional steps, then the first auxiliary agent is sprayed on the surface of the rayon fabric after printing, and then the rayon fabric cannot be sent into a steamer to be steamed and fixed, the activity of the reactive dye can be improved by the first auxiliary agent, the connecting points between the reactive dye and the fabric fibers are increased, and the color fixing effect is improved. And then spraying a second auxiliary agent on the cloth after color fixation, and then sending the cloth into a washing machine for washing to remove floating color, wherein the second auxiliary agent can reduce the adsorption effect of the floating color on the cloth, so that the floating color is easier to desorb when the cloth is guided into the washing machine for washing, and the water consumption for washing the cloth is reduced. And (4) carrying out setting treatment on the washed cloth to obtain the finished product of the cotton cloth.

The invention is further configured to: the pretreating agent added in the step S1 comprises the following components in parts by weight:

by adopting the technical scheme, the soda ash in the pretreatment process enables the environment during pretreatment to be alkaline, and fat impurities on the cloth can be accelerated to be hydrolyzed and removed under the alkaline condition. The biological enzyme can catalyze and decompose protein impurities in the cloth into water-soluble micromolecules, and the hydrogen peroxide has strong oxidability and a certain bleaching effect on the rayon cloth. The dispersing agent can improve the dispersion uniformity of the biological enzyme in water, and can better disperse the eluted impurities to improve the removal effect.

The invention is further configured to: the first auxiliary agent comprises the following components in parts by weight:

by adopting the technical scheme, the combination between the active groups of the reactive dye and the fibers of the cloth can be improved by the sodium phosphate and the sodium bicarbonate, so that the combination points of the reactive dye are increased, and the color fixing effect of the reactive dye is improved. After the ethanol and the water are simultaneously added into the solvent, the mixture of the ethanol and the water has better compatibility with organic matters and inorganic matters, so that the permeation effect of sodium phosphate and sodium bicarbonate to the inside of the fiber can be improved, and the color fixing effect of the reactive dye is improved.

The invention is further configured to: the second auxiliary agent comprises the following components in parts by weight;

30-50 parts of a penetrating agent;

10-20 parts of a dispersing agent;

8-12 parts of carbolic acid.

By adopting the technical scheme, the dispersing effect of the carbolic acid in the solution can be improved by the penetrant and the dispersant, the carbolic acid can be better permeated into the cloth by the penetrant, the carbolic acid has certain weak acidity, the reactive dye is a dye with good water solubility, and in the dissolving and desorbing process of water, the desorption of the unbound reactive dye can be improved by certain acidity, so that the removing effect of the floating color is improved.

The invention is further configured to: the washing assistant comprises the following components in parts by weight;

through adopting above-mentioned technical scheme, sodium alkyl benzene sulfonate, alkyl polyoxyethylene ether and nonyl phenol ether have for the surfactant, can reduce the surface tension of floating color, make the floating color on the cloth follow the cloth surface desorption more easily, make the floating color after the elution can disperse the cleaning water sooner, nanometer ferroferric oxide has certain adsorption effect, and the price is substantial, nanometer ferroferric oxide can adsorb the gathering with the floating color of aquatic, thereby make the more floating colors that once only can elute, thereby reduce the washing water consumption.

The invention is further configured to: the rope-shaped washing machine in the step S6 comprises a frame, wherein one end of the frame, which is close to the bottom wall of the frame, is connected with a groove body, and the rope-shaped washing machine is characterized in that: the side wall of the tank body is provided with a feeding mechanism, the feeding mechanism comprises a feeding pipe, two ends of the feeding pipe are connected with the side walls at two ends of the tank body, and one end of the feeding pipe penetrates through the side wall of the tank body and is connected with the feeding assembly; the feeding pipe is sleeved with a pipe sleeve which is coincident with the axis of the feeding pipe, and the inner side wall of the pipe sleeve is connected with the outer side wall of the feeding pipe in a sliding manner; one side of the feeding pipe close to the bottom wall of the tank body is provided with a liquid outlet hole along the length direction of the feeding pipe, more than one adjusting hole is formed in the circumferential side wall of the pipe sleeve along the length direction of the pipe sleeve, the adjusting holes are different in width, the maximum width of each adjusting hole is equal to the width of the liquid outlet hole, and the side wall of the pipe sleeve is connected with a swinging assembly arranged on the tank body;

the swinging assembly comprises a swinging rod, a swinging hole is formed in the side wall of the tank body, a sliding block is slidably mounted in the swinging hole, a sliding hole is formed in the sliding block, one end of the swinging rod is connected with the side wall of the pipe sleeve, the other end of the swinging rod is slidably connected with the sliding hole, the width of the sliding hole is larger than the diameter of the swinging rod, and the swinging assembly further comprises a driving piece mounted on the side wall of the tank body;

the side wall of the tank body is provided with a mounting groove, the side walls at two ends of the swinging hole are provided with through holes communicated with the mounting groove, the driving piece comprises a positioning wheel rotatably mounted in the mounting groove, the driving piece also comprises pulling ropes arranged at two sides of a sliding block, one end of each pulling rope is fixedly connected with the sliding block, the other end of each pulling rope penetrates through the through hole to be connected with the fixed pulley in a sliding manner, and the side wall of the tank body is also provided with a positioning piece for positioning the sliding block;

the positioning piece comprises a positioning block, at least one positioning groove is uniformly formed in the side wall of the swinging hole along the length direction of the swinging hole, the positioning groove is communicated with the mounting groove, the positioning block is slidably mounted in the positioning groove, a spring is sleeved on the positioning block, one end of the spring is connected with the side wall, close to the swinging hole, of the mounting groove, and the other end of the spring is connected with the side wall, far away from the swinging hole, of the positioning block; a pull ring is connected to the side wall of the positioning block, which is far away from the swinging hole, and one end of the pulling rope, which penetrates through the positioning wheel, penetrates through the pull ring and is connected with the pull ring in a sliding manner; one end of the pulling rope penetrating through the pull ring is connected with a limiting block.

Through adopting above-mentioned technical scheme, the swing subassembly drives the pipe box and rotates for different regulation holes on the pipe box are corresponding with the play liquid hole on the filling tube, thereby make the washing auxiliary agent that flows out in the filling tube pass through behind the regulation hole after going out the liquid hole, and the flow of washing auxiliary agent obtains controlling, can adjust the washing auxiliary agent according to the pollution degree of the spot of the abluent fabric of needs of adding into the washing machine. The driving piece drives the sliding block to slide in the swinging hole, and the sliding block drives the swinging rod to deflect in the sliding hole when sliding, so that the swinging rod drives the pipe sleeve to rotate, different adjusting holes in the pipe sleeve correspond to the feeding holes in the feeding pipe, and the effect of controlling the flow rate of the cleaning assistant in the feeding pipe is adjusted. When the driving piece drives, the rope is pulled in the pulling mode, the pulling rope drives the pulling sliding block to slide in the swinging hole through the fixed pulley, and when the sliding block slides to a position needing to be adjusted, the sliding block is positioned through the positioning piece. The sliding block is when sliding, and the pulling rope is in the state of straining, and the pulling ring on the locating piece is pulled to the pulling rope for in the locating piece gets into the constant head tank, the sliding block can smoothly slide in the swinging hole, after the sliding block slides to the position of required regulation, the pulling rope relaxes, makes the locating piece pop out the constant head tank under the effect of spring and with the sliding block butt in required position department, thereby makes the sliding block obtain the location.

The invention is further configured to: the inner side wall of the groove body is connected with a butt plate, and one end, far away from the end connected with the side wall of the groove body, of the butt plate is connected with the side wall of the pipe sleeve in a sliding mode; one end of the abutting plate, which is connected with the side wall of the pipe sleeve, is provided with a cambered surface which is attached to the side wall of the pipe sleeve;

the feeding subassembly includes the inlet pipe, the inlet pipe is linked together with the one end of filling tube, the one end that links to each other with the filling tube is kept away from to the inlet pipe is connected with first suction pump, the one end that links to each other with the inlet pipe is kept away from to first suction pump is connected with the mixing tank, install the loading hopper on the mixing tank, be connected with the second suction pump on the lateral wall of mixing tank, be connected with the inlet tube on the second suction pump. By adopting the technical scheme, the method has the advantages that,

by adopting the technical scheme, the butt plate can prevent water drops splashed by the washed fabrics in the washing machine from splashing out of the swinging holes to influence the peripheral working environment of the washing machine. The terminal surface of butt joint board sets up to the cambered surface for butt joint board and pipe box lateral wall laminate more, and the laminating is inseparabler, thereby makes the effect of the water droplet that blocks of butt joint board splashes better. The cleaning auxiliary agent can be sucked into the mixing tank by starting the second water pump, then the cleaning auxiliary agent material is added into the hopper, so that the cleaning auxiliary agent material and the water can be uniformly mixed in the mixing tank, and then the cleaning auxiliary agent can be regulated in real time as required by sucking the feeding pipe through the first water pump, so that the cleaning auxiliary agent is more convenient.

The invention is further configured to:

compared with the prior art, the invention has the beneficial effects that:

1. the first aid and the second aid are sprayed on the cloth before and after the steaming color fixation, so that the color fixation effect of the reactive dye is improved by the first aid, and the desorption effect of the floating color is improved by the second aid, so that the water quantity used for removing the floating color by water washing is reduced, and the water resource is saved;

2. the washing auxiliary agent is added into the washing water in the washing machine, so that the cloth can be washed more quickly, and the washing effect is better;

3. the feeding mechanism is arranged to adjust the flow of the cleaning auxiliary agent into the groove body of the rope-shaped washing machine, so that the fabrics needing different degrees of cleaning treatment can be accurately and effectively cleaned when entering the washing machine;

4. the pipe sleeve on the feeding pipe is driven to rotate by the swing assembly, so that the adjusting holes with different widths correspond to the liquid outlet holes in the feeding pipe, the adding flow of the cleaning auxiliary agent is adjusted, and the control mode is simple and quick.

Drawings

FIG. 1 is a perspective view of a washing machine and a charging mechanism;

FIG. 2 is a sectional view of the tank body for showing the installation relationship of the swing assembly and the tank body;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a cross-sectional view of the housing showing the mounting of the feed tube and shroud to the housing.

Reference numerals: 4. a frame; 41. a trough body; 5. a feeding mechanism; 51. a swing assembly; 511. a slider; 512. a swing hole; 513. a swing lever; 514. a slide hole; 52. mounting grooves; 521. a first mounting groove; 522. a second mounting groove; 523. a through hole; 53. a drive member; 531. pulling the rope; 532. positioning wheels; 54. a positioning member; 541. positioning blocks; 542. positioning a groove; 543. a spring; 544. a pull ring; 545. a limiting block; 55. a feed tube; 551. a liquid outlet hole; 56. pipe sleeve; 561. an adjustment hole; 6. a butt joint plate; 7. a feed assembly; 71. a feed pipe; 72. a first water pump; 73. a mixing tank; 74. a hopper; 75. a second water pump; 76. and (4) a water inlet pipe.

Detailed Description

The invention is described in detail below with reference to the figures and examples.

Referring to fig. 1, the invention discloses a woven man-made cotton cloth printing process, which comprises the following process steps:

s1: pre-treating the gray fabric, namely adding the gray fabric into a pretreatment solution, stirring and soaking for 30min, controlling the temperature of the pretreatment solution at 80 ℃, wherein the pretreatment agent comprises the following components in parts by weight: 20 parts of sodium carbonate, 10 parts of hydrogen peroxide, 5 parts of biological enzyme and 3 parts of dispersing agent;

s3: pre-setting, namely guiding the washed cloth into a setting machine for setting treatment;

s4: printing, namely guiding the pre-shaped cloth into a printing machine, adding the prepared printing paste on a screen printing plate, and overprinting for 3 times;

s5: and (2) steaming, namely spraying a first auxiliary agent on the cloth, introducing the printed cloth into a steaming machine for steaming and color fixation, wherein the steaming temperature is 150 ℃, the steaming time is 5min, and then spraying a second auxiliary agent on the cooled cloth, wherein the first auxiliary agent comprises the following components in parts by weight: 5 parts of sodium phosphate, 5 parts of sodium bicarbonate, 85 parts of ethanol and 85 parts of water. The second auxiliary agent comprises the following components in parts by weight: 30 parts of penetrating agent, 10 parts of dispersing agent and 12 parts of carbolic acid. (ii) a

S6: and (2) secondary washing, namely guiding the fixed cloth into a rope-shaped washing machine for desizing and washing, wherein a washing auxiliary agent is added in the desizing and washing process, and the washing auxiliary agent comprises the following components in parts by weight: 10 parts of sodium alkyl benzene sulfonate, 10 parts of alkyl polyoxyethylene ether, 8 parts of nonylphenol ether, 20 parts of nano ferroferric oxide, 40 parts of ethanol and 40 parts of water.

S7: shaping, and then shaping the fabric;

and (5) obtaining the finished product of the cotton cloth after the 7 steps.

The rope-shaped washing machine in step S6, referring to fig. 1, includes a frame 4, and a tank 41 is fixedly mounted at one end of the frame 4 close to the bottom wall of the frame 4.

Referring to fig. 2, a feeding mechanism 5 is installed in the tank body 41, and the feeding mechanism 5 includes a swing assembly 51 installed on a side wall of the tank body 41. The swing assembly 51 comprises a sliding block 511, a swing hole 512 is formed on the side wall of the slot body 41, and the sliding block 511 is slidably mounted in the swing hole 512.

Referring to fig. 2 and 3, a mounting groove 52 is formed in a side wall of the groove body 41 on one side of the swing hole 512, the mounting groove 52 includes a first mounting groove 521 at two ends of the swing hole 512 and a second mounting groove 522 formed along a length direction of the swing hole 512, and the first mounting groove 521 is communicated with the second mounting groove 522. The side wall of the first mounting groove 521 is provided with a through hole 523 communicated with the swing hole 512.

Referring to fig. 2 and 3, the swing assembly 51 further includes a driving member 53 and a positioning member 54 installed in the installation groove 52. The driving member 53 includes a pulling rope 531 and a positioning wheel 532, the positioning wheel 532 is rotatably mounted in the first mounting groove 521, one end of the pulling rope 531 is fixedly connected to the end surface of one end of the sliding block 511, and the other end of the pulling rope 531 sequentially passes through the through hole 523 and the fixed pulley to extend into the second mounting groove 522.

Referring to fig. 2 and 3, the positioning element 54 includes a positioning block 541, the side wall of the swing hole 512 close to the second mounting groove 522 is provided with 4 positioning grooves 542 connected to the second mounting groove 522 along the length direction of the swing hole 512, the positioning block 541 is slidably mounted in the positioning grooves 542, the positioning block 541 is sleeved with a spring 543, one end of the spring 543 is fixedly connected to the side wall of the second mounting groove 522 close to the swing hole 512, and the other end of the spring 543 is fixedly connected to one end of the positioning block 541 far from the swing hole 512. The upper surface of the positioning block 541 below the slide block 511 abuts against the end surface of the slide block 511, and the end surface of the positioning block 541 on the side of the slide block 511 abuts against the slide block 511.

Referring to fig. 2 and 3, a pull ring 544 is fixedly connected to an end of the positioning block 541 away from the swing hole 512. Pull cord 531 extends through pull ring 544 through an end of positioning wheel 532 and is slidably coupled to pull ring 544. One end of the pulling rope 531 passing through the pulling ring 544 is fixedly connected with a limiting block 545.

Referring to fig. 1 and 4, the sliding block 511 is provided with a sliding hole 514, the swing assembly 51 further includes a swing lever 513, and the swing lever 513 is slidably connected to the sliding hole 514. The feeding mechanism 5 further comprises a feeding pipe 55, and two ends of the feeding pipe 55 are fixedly connected with the side wall of the groove body 41. The feeding pipe 55 is sleeved with a pipe sleeve 56, and two ends of the pipe sleeve 56 are rotatably connected with the side wall of the tank body 41. One end of swing rod 513 passing through sliding hole 514 is fixedly connected with the side wall of pipe sleeve 56.

Referring to fig. 4, a liquid outlet 551 is provided on the sidewall of the feed tube 55 near the bottom wall of the housing 41 along the length direction of the

feed tube

55, and 4 adjusting holes 561 with different widths are provided on the peripheral sidewall of the tube housing 56 along the length direction of the tube, wherein the width of the adjusting hole 561 with the largest width is equal to the width of the liquid outlet 551.

Referring to fig. 4, the inner side walls of the groove body 41 on the two sides of the pipe sleeve 56 are fixedly connected with the obliquely arranged abutting plates 6, one ends, far away from the inner side walls of the groove body 41, of the abutting plates 6 are arranged to be arc surfaces, and the arc surfaces of the abutting plates 6 are in sliding connection with the side walls of the pipe sleeve 56.

Referring to fig. 1, the feeding mechanism 5 further includes a feeding assembly 7, and the feeding assembly 7 includes a feeding pipe 71, and the feeding pipe 71 passes through the side wall of the tank 41 and is communicated with the feeding pipe 55. The end, far away from the connection with the feeding pipe 55, of the feeding pipe 71 is connected with a first water pump 72, the end, far away from the connection with the feeding pipe 71, of the first water pump 72 is connected with a mixing tank 73, a feeding hopper 74 is installed on the mixing tank 73, a second water pump 75 is connected to the side wall of the mixing tank 73, and a water inlet pipe 76 is connected to the second water pump 75.

The implementation principle of the embodiment is as follows: when the washing machine is in operation, when the cleaning auxiliary agent is added into the tank 41, water may be pumped into the mixing tank 73 by the second water pump 75, and then the cleaning auxiliary agent is added into the hopper 74. The cleaning auxiliary agent and the water are fully mixed in the mixing tank 73, then are added into the feeding pipe 71 through the first water pump 72, then enter the feeding pipe 55, and then flow into the tank body 41 through the liquid outlet 551 and the adjusting hole 561 to be mixed with the water in the tank body 41, so that the cleaning auxiliary agent has a cleaning effect on the cleaned fabric in the tank body 41.

When the entering fabric needs to be cleaned more thoroughly, the pulling rope 531 can be pulled, when the pulling rope 531 is pulled, the pulling rope 531 tightly pulls the pulling ring 544 to pull the positioning block 541 into the positioning groove 542, then the sliding block 511 is pulled and pulled to slide in the swinging hole 512, when the sliding block 511 slides, one end of the swinging rod 513 in the sliding hole 514 is driven to rotate, one end of the swinging rod 513 rotates to drive the pipe sleeve 56 to rotate, and the adjusting hole 561 with the larger width corresponds to the liquid adding hole. Then the pulling rope 531 is loosened, the pulling ring 544 loses the pulling force, the positioning block 541 is pushed out of the positioning groove 542 by the spring 543, so that the sliding block 511 is pushed and positioned, and the adjustment of the cleaning auxiliary agent liquid adding flow is completed.

Examples 2 to 5 are different from example 1 in that the components in the pretreatment agent are shown in the following table in parts by weight.

Examples	Soda ash	Hydrogen peroxide solution	Biological enzymes	Dispersing agent
					Example 2	22.5	12.5	6.25	3.5
Example 3	25	15	7.5	4
					Example 4	27.5	17.5	8.75	4.5
Example 5	30	20	10	5

Examples 6 to 9 differ from example 1 in that the components of the first auxiliary are in parts by weight in the following table.

Examples 10 to 13 differ from example 1 in that the components of the second auxiliary are in parts by weight as given in the following table.

Examples	Penetrant	Dispersing agent	Carbolic acid
				Example 10	35	12.5	9
Example 11	40	15	10
				Example 12	45	17.5	11
Example 13	50	20	12

Examples 14 to 17 differ from example 1 in that the components of the water-washing assistant are in parts by weight in the following table.

Comparative example

Comparative example 1 differs from example 1 in that no pretreatment agent was added to the process;

comparative example 2 differs from example 1 in that the first aid and the second aid are not added in the process;

comparative example 3 differs from example 1 in that no water wash aid was added to the process;

comparative example 4 differs from example 1 in that no first aid is added to the process;

comparative example 5 differs from example 1 in that no second aid is added to the process.

Detection method

And (4) introducing the steamed and fixed rayon fabric subjected to printing and subjected to the step S6 into a single washing tank of a rope-shaped washing machine, washing with water with the same depth, draining, stirring the washed fabric in clear water, and observing the color change of the contrast water.

The results are given in the following table:

and (4) conclusion: in the table above, it is easily seen from the comparison between example 1 and comparative examples 2, 4, and 5 that, when the first aid and the second aid are not added, the floating color on the fabric after one time of washing is more, and the addition of the second aid has a better effect on the desorption of the floating color. And the first auxiliary agent indirectly reduces the flooding to a certain extent by fixing more reactive dyes.

Color fastness test

The light fastness, sublimation fastness and rubbing fastness of the dyed cloth were determined using GB/T8427-1998, GB/T3920-1997.

And (4) conclusion: the comparison in the table above shows that the fastnesses of the fabric added with the first auxiliary agent are better, namely the first auxiliary agent is more tightly combined with the fabric and the reactive dye, and the color fixing effect is improved, because the fastnesses of the example 1 and the comparative examples 1, 3 and 5 are all higher than those of the comparative examples 2 and 4.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A printing process of woven man-made cotton cloth is characterized in that: the method comprises the following steps:

s1: pretreating gray fabric, namely adding the gray fabric into a pretreatment solution, stirring and soaking for 30-60 min, and controlling the temperature of the pretreatment solution at 80-95 ℃;

s3: pre-setting, namely guiding the washed cloth into a setting machine;

s7: shaping, and then shaping the fabric;

obtaining finished product cotton cloth after the 7 steps;

the pretreating agent added in the step S1 comprises the following components in parts by weight:

20-30 parts of soda ash;

10-20 parts of hydrogen peroxide;

5-10 parts of biological enzyme;

3-5 parts of a dispersing agent;

the first auxiliary agent comprises the following components in parts by weight:

5-10 parts of sodium phosphate;

5-10 parts of sodium bicarbonate;

85-120 parts of ethanol;

85-120 parts of water;

the second auxiliary agent comprises the following components in parts by weight:

30-50 parts of a penetrating agent;

10-20 parts of a dispersing agent;

8-12 parts of carbolic acid.

2. The woven rayon cotton cloth printing process according to claim 1, characterized in that: the washing auxiliary agent comprises the following components in parts by weight:

10-20 parts of sodium alkyl benzene sulfonate;

10-25 parts of alkyl polyoxyethylene ether;

8-15 parts of nonyl phenol ether;

20-30 parts of nano ferroferric oxide;

40-50 parts of ethanol;

40-100 parts of water.