CN113265887A

CN113265887A - Less-water printing and dyeing process

Info

Publication number: CN113265887A
Application number: CN202110567778.0A
Authority: CN
Inventors: 陆凤彪; 马建男; 周耀东; 张卫金
Original assignee: Suzhou Industrial Park Yangcheng Silk Printing And Dyeing Co ltd
Current assignee: Suzhou Industrial Park Yangcheng Silk Printing And Dyeing Co ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-08-17

Abstract

The application relates to the field of silk printing and dyeing, in particular to a less-water printing and dyeing process, which comprises the following steps: s1, firstly, carrying out alkali washing and degumming treatment on the grey cloth by high-pressure washing equipment; s2, washing the grey cloth by using a water return type washing device; s3, oxidizing and bleaching the grey cloth; s4, carrying out cation attachment pretreatment on the grey cloth by using a cation active agent solution with the proportion of 5-12% of that of the grey cloth; and S5, dyeing the grey cloth by using an acid dye agent with the proportion of 3-6% of that of the grey cloth through atomization spray dyeing equipment. This application has the effect of using water wisely.

Description

Less-water printing and dyeing process

Technical Field

The application relates to the field of silk printing and dyeing, in particular to a less-water printing and dyeing process.

Background

At present, silk dyeing is mainly to enable dye and grey cloth to generate chemical reaction, so that lake is formed on the grey cloth, and thus, the printing and dyeing of the silk are completed. The grey cloth is woven by silk.

Because the outer layer of the silk comprises sericin, the sericin can influence the reaction of dye and fibroin in the silk and influence the dyeing effect. Therefore, in the process of dyeing the grey cloth, the grey cloth needs to be washed by alkali and soaked and cleaned by clear water for 5-6 times to remove sericin, then in order to ensure the dyeing uniformity, the grey cloth needs to be bleached, and after the grey cloth is bleached, the grey cloth is placed in a dye vat for dip dyeing. A large amount of water is wasted on silk washing during silk printing and dyeing.

Disclosure of Invention

In order to reduce the waste of water resources in the silk printing and dyeing process, the application provides a less-water printing and dyeing process.

The low-water printing and dyeing process provided by the application adopts the following technical scheme:

a less-water printing and dyeing process comprises the following steps:

s1, firstly, carrying out alkali washing and degumming treatment on the grey cloth by high-pressure washing equipment;

s2, washing the grey cloth by using a water return type washing device;

s3, oxidizing and bleaching the grey cloth;

s4, carrying out cation attachment pretreatment on the grey cloth by using a cation active agent solution with the proportion of 5-12% (o.w.f) to the grey cloth;

and S5, dyeing the grey cloth by using an acid dye agent with the specific gravity of 3-6% (o.w.f) of the grey cloth through atomization spray dyeing equipment.

By adopting the technical scheme, the grey cloth can be pretreated only by alkali washing degumming treatment and washing by a water return type washing device, and the grey cloth does not need to be washed by clear water for 5-6 times, so that the effect of saving water is achieved; meanwhile, the grey cloth is dip-dyed by the cationic active agent, and the acid dye mordant and the cationic active agent form lake, so that dyeing of the grey cloth is completed, long-time dip dyeing is not needed, the dyeing efficiency is improved, the use of a dye is reduced, and the effect of saving water is achieved.

Optionally, the high-pressure flushing device comprises a flushing tank, a plurality of flushing pipes are arranged on the flushing tank, each flushing pipe is provided with a high-pressure spray head, and the plurality of flushing pipes are connected with a water supply assembly.

By adopting the technical scheme, the water supply assembly supplies high-pressure alkaline water to the flushing pipe, and then the alkaline water is sprayed to the grey cloth through the high-pressure spray head, so that the alkaline water quickly dissolves sericin, and meanwhile, the sericin on the grey cloth is washed off under the impact of the high-pressure alkaline water without being completely dissolved, thereby achieving the effect of saving water.

Optionally, the water supply assembly comprises a water supply tank, a water outlet is arranged on the water supply tank, a pressure pump is arranged on the water outlet, the water outlet is connected with the flushing pipe through a pipeline, and a drug feeding port is arranged on the water supply tank.

By adopting the technical scheme, the alkaline medicament is fed into the water supply tank from the medicament feeding port, is dissolved in water in the water supply tank to form alkaline water, and is pressurized by the pressurizing pump and then is fed into the flushing pipe.

Optionally, a stirring rod is arranged in the water supply tank, stirring blades are arranged on the stirring rod, and a stirring driving piece for driving the stirring blades to stir is arranged on the water supply tank.

Through adopting above-mentioned technical scheme, the stirring driving piece drives stirring vane and rotates to make the alkaline medicament in the water supply tank can be by the intensive mixing in aqueous, thereby guarantee the buck basicity, and can not produce because the buck basicity is inhomogeneous and lead to washing the not good condition of effect to appear.

Optionally, a squeezing assembly is arranged on the inner wall of the flushing tank along the tail end of the conveying direction of the grey cloth, and the squeezing assembly comprises two squeezing rollers and a squeezing driving piece for driving the two squeezing rollers to approach each other; be provided with the return water tank on the flushing tank diapire, the return water tank passes through pipeline and water supply assembly.

Through adopting above-mentioned technical scheme, the extrusion driving piece drives two wringing rollers shrink for grey cloth is when the wringing roller is transported forward, and the moisture that contains in the grey cloth is extruded and is dripped on the flushing tank diapire, then is by reuse in the return water tank flows back to the water supply subassembly, thereby reaches water-saving effect.

Optionally, return water formula cleaning equipment is including wasing the pond, wash the pond and be provided with a plurality of rolling discs along grey cloth direction of transportation equidistant, be provided with a plurality of hitting rollers on the rolling disc, be provided with the drive rolling disc pivoted on the lateral wall of washing tank and hit the motor.

Through adopting above-mentioned technical scheme, when grey cloth soaked in washing the pond and transported forward, hit the rotating disc rotation of beating motor drive to make hitting beating roller intermittent type nature hit on grey cloth, thereby make the soda that contains in the grey cloth and sericin can break away from grey cloth fast, and need not to soak the washing many times, thereby reach water-saving effect.

Optionally, an arched material guide plate is arranged below the beating roller, a gap is formed between the material guide plate and the side wall of the cleaning tank, and an arc-shaped guide portion is arranged between the side wall and the bottom wall of the cleaning tank.

Through adopting above-mentioned technical scheme, the back is hit by the knock roll to the solid sweeps on the grey cloth, and the sweeps rolls to the guide part under the guide effect of stock guide, then rolls to during stock guide and washing pond diapire under the guide effect of guide part to reduce the sweeps and follow the water and flow and continue to be stained with the appearance of attaching the condition on the grey cloth, guaranteed the cleaning performance.

Optionally, atomizing spray-painting equipment is including spouting the dye box, roof and interior diapire in the spray-painting box are provided with a plurality of spray-painting pipes along grey cloth direction of delivery equidistant crisscross, and is a plurality of spray-painting pipe all has the dyestuff supply piece through pipe connection, every a plurality of spray-painting atomising heads have all been seted up on the spray-painting pipe.

By adopting the technical scheme, the acid dyeing agent is supplied into the spray-dyeing pipe of the dye supply part box, and is uniformly sprayed to the grey cloth after being atomized by the spray-dyeing atomization nozzle, so that the grey cloth is dyed, the dyeing uniformity is ensured, and meanwhile, the dyeing efficiency is improved without long-time dip dyeing.

Optionally, the method further comprises the steps of: and S6, washing and fixing the dyed grey cloth by using cold water at the temperature of 12-20 ℃.

By adopting the technical scheme, the color lake in the grey cloth is more stable by the cold water at the temperature of 12-20 ℃, and meanwhile, the loose color on the grey cloth can be washed and dropped, so that the dyeing effect is ensured.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the grey cloth can be pretreated only by carrying out alkali washing degumming treatment on the grey cloth through high-pressure washing equipment and cleaning through water return type cleaning equipment, and the grey cloth does not need to be cleaned for 5-6 times with clear water, so that the effect of saving water is achieved;

2. meanwhile, the silk is attached by the cationic active agent in the printing and dyeing process and then spray-dyed by the acidic dye medium, so that the silk is not required to be soaked for printing and dyeing for a long time in the printing and dyeing process, and the printing and dyeing efficiency is improved;

3. the dyeing effect is improved by cold water color fixing treatment.

Drawings

FIG. 1 is a schematic diagram of the overall equipment in a low-water printing and dyeing process according to an embodiment of the application.

Fig. 2 is a schematic structural diagram of a high-pressure flushing device in a low-water printing and dyeing process according to an embodiment of the application.

Fig. 3 is a schematic structural diagram of a backwater type cleaning device in a low-water printing and dyeing process according to an embodiment of the application.

Fig. 4 is a schematic structural diagram of a cation attachment device and an atomization spray-painting device in a low-water printing and dyeing process according to an embodiment of the application.

Fig. 5 is a schematic view of an internal structure of a cold air box in a low-water printing and dyeing process according to an embodiment of the present application.

Description of reference numerals: 1. high pressure flushing equipment; 11. a flushing tank; 12. a flush tube; 13. a high pressure spray head; 14. a water supply assembly; 141. a water supply tank; 142. a drug feeding port; 143. a pressure pump; 144. a stirring rod; 145. a stirring motor; 146. a stirring blade; 147. an electric heating coil; 15. a wringing component; 151. a water squeezing roller; 152. a guide bar; 153. a carrier plate; 154. an extrusion cylinder; 16. a water return tank; 2. a backwater type cleaning device; 21. a cleaning tank; 22. rotating the disc; 23. a striking motor; 24. a striking roller; 25. a material guide plate; 3. a rinsing pool; 4. a cation attachment device; 41. an attachment pond; 42. a deflecting roller; 5. atomizing spray-dyeing equipment; 51. spraying and dyeing boxes; 52. spray-dyeing the tube; 53. spray-painting atomizing heads; 54. a dye supply tank; 55. a high pressure pump; 6. a cold washing tank; 61. an air cooler; 62. spray washing the tube; 63. a cold water spray head; 64. a cold water pump.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a less-water printing and dyeing process. Referring to fig. 1, the less-water printing and dyeing process specifically comprises the following steps:

and S1, the grey cloth is subjected to high-pressure washing through the high-pressure washing equipment 1. Referring to fig. 1 and 2, the high pressure washing apparatus 1 includes a washing tank 11, a plurality of washing pipes 12 are provided in the washing tank 11 at equal intervals in a cloth feeding direction, and a water supply unit 14 is connected to the plurality of washing pipes 12 through a pipe. Each flushing pipe 12 is arranged along the length direction perpendicular to the grey cloth, a plurality of high-pressure spray heads 13 are arranged on the flushing pipes 12 at equal intervals, and the high-pressure spray heads 13 on two adjacent flushing pipes 12 are arranged in a staggered mode, so that liquid sprayed by the high-pressure spray heads 13 can be uniformly covered on the grey cloth.

Referring to fig. 2, the water supply unit 14 includes a water supply tank 141, a chemical feeding port 142 is provided on a top wall of the water supply tank 141, a water outlet is provided on a side wall of the water supply tank 141, the water outlet is connected to the flushing pipe 12 through a pipe, and a pressurizing pump 143 is installed on the water outlet. An alkaline medicament is put into the water supply tank 141 from the medicament feeding port 142 to enable the water in the water supply tank 141 to be in an alkaline state, then alkaline water in the water supply tank 141 is pressurized and supplied into the washing pipe 12 through the pressurizing pump 143, the alkaline water is quickly sprayed onto the gray fabric from the high-pressure spray head 13, under the high-pressure washing of the alkaline water, the sizing material on the gray fabric can still be washed and separated without being completely dissolved, so that the cleaning performance of the gray fabric can be ensured without long-time soaking to enable the sizing material to be completely dissolved in the alkaline water, and the effect of saving water sources is achieved.

Referring to fig. 2, in order to reduce the problem of poor washing effect caused by insufficient mixing of the alkaline chemical with water, a horizontal stirring rod 144 is installed on a side wall of the water supply tank 141, a spiral stirring blade 146 is fixed on the stirring rod 144, a stirring motor 145 is fixed on the side wall of the water supply tank 141, and an output shaft of the stirring motor 145 is fixedly connected with the stirring rod 144. The stirring motor 145 drives the stirring rod 144 to rotate, so that the stirring blade 146 on the stirring rod 144 stirs the water in the water supply tank 141, thereby ensuring the mixing uniformity of the alkaline chemical and the water.

Referring to fig. 2, an electric heating coil 147 is fixed on an inner sidewall of the water supply tank 141, and water in the water supply tank 141 is heated to 50-60 ℃ by the electric heating coil 147, so that a dissolution rate of a sizing material on the gray fabric is increased, and a cleaning effect and a cleaning efficiency are ensured.

Referring to fig. 2, a wringing assembly 15 is provided on the inner wall at the outlet of the flush tank 11. The wringing assembly 15 includes two wringing rollers 151 arranged in parallel and a wringing driving member for driving the two wringing rollers 151 to move relatively. The wringing driving part comprises guide rods 152 which are vertically fixed on the flushing tank 11, a bearing plate 153 is arranged between the two guide rods 152, an extrusion cylinder 154 is fixed on the side wall of the flushing tank 11, and an expansion link of the extrusion cylinder 154 is connected with the bearing plate 153. One of the two wringing rollers 151 is mounted on the bearing plate 153, and the other is fixedly arranged on the flushing tank 11 through a connecting rod, so that the wringing roller 151 on the bearing plate 153 can be driven by the squeezing cylinder 154 to press the other wringing roller 151, after the grey cloth passes through the two wringing rollers 151, the water in the grey cloth can be squeezed out and then dripped into the flushing tank 11, the bottom wall of the flushing tank 11 is provided with the water return tank 16, and the tail end of the water return tank 16 is connected with the water supply tank 141 through a pipeline, so that the effect of recycling water resources is achieved. Meanwhile, in order to prevent the glue in the gray fabric from flowing back into the water supply tank 141, a plurality of filter screens (not shown) are installed in a connection pipe between the water returning tank 16 and the water supply tank 141.

And S2, alkali washing the grey cloth through a water return type washing device 2.

Referring to fig. 1 and 3, the backwater type washing apparatus 2 includes a washing tub 21 provided with an upper end opened, the washing tub 21 being provided along a cloth conveying direction. A plurality of rotating discs 22 are arranged on the inner wall of the cleaning pool 21 at equal intervals along the length direction of the cleaning pool 21, and striking motors 23 which are arranged in one-to-one correspondence with the rotating discs 22 are arranged on the outer wall of the cleaning pool 21. The output shaft of the striking motor 23 is fixedly connected with the rotating shaft of the rotating disc 22, so that the striking motor 23 can drive the rotating disc 22 to rotate. Two horizontal beating rollers 24 are fixed on each rotating disc 22, so that when the gray fabric moves in the cleaning pool 21, the beating motors 23 drive the beating rollers 24 to intermittently beat the gray fabric, thereby accelerating the alkaline water on the gray fabric and the colloid which is not cleaned up to quickly fall off from the gray fabric, and the alkaline water and the colloid do not need to be slowly dissolved in clear water for a long time, so that the effect of saving water sources while quickly cleaning is realized. Be fixed with arched stock guide 25 on washing pond 21 of the below of beating roller 24, stock guide 25 and washing pond 21 lateral wall clearance set up, be provided with curved deflector between the lateral wall of washing pond 21 and the diapire, thereby make the solid sweeps on the grey cloth beat the back by beating roller 24, the sweeps rolls to the guide part under the guide effect of stock guide 25, then rolls to stock guide 25 and wash among the pond 21 diapire under the guide effect of guide part, thereby reduce the sweeps and follow the water and flow and continue to be stained with the condition of attaching on grey cloth, the cleaning performance has been guaranteed.

Referring to fig. 3, the side wall of the tail end of the washing tank 21 is also provided with the wringing assembly 15, so that after the grey cloth is washed by the washing tank 21, moisture contained in the grey cloth can be squeezed out by the wringing assembly 15 and then flows back to the washing tank 21, and the effect of saving water is achieved.

And S3, putting the grey cloth into the rinsing tank 3 for oxidation bleaching to ensure that the dyeing effect in the subsequent dyeing process is not influenced by the variegated color on the surface of the grey cloth.

And S4, performing cation attachment treatment on the grey cloth by using a cation attachment device 4 with the proportion of 5-12% (o.w.f) to the grey cloth.

Referring to fig. 1 and 4, the cation attaching device 4 includes an attaching tank 41, three folding rollers 42 are alternately disposed in the attaching tank 41, and after the gray fabric is inserted into the three folding rollers 42, the gray fabric is transported forward in a V-shape. Adding a cationic active agent solution with the specific gravity of 5-12% (o.w.f) of the grey cloth into the attachment pool 41; so that the grey cloth can be sufficiently impregnated with cations after passing through the attachment tank 41.

And S5, dyeing the grey cloth by using an acid dye agent with the specific gravity of 3-6% (o.w.f) of the grey cloth through an atomization spray dyeing device 5.

Referring to fig. 4, the atomizing spray-dyeing apparatus 5 includes a spray-dyeing tank 51, a cloth inlet and a cloth outlet are opened on two opposite side walls of the spray-dyeing tank 51, and the attachment tank 41 is installed on the side wall of the spray-dyeing tank 51 on one side of the cloth inlet. A plurality of spray-dyeing pipes 52 are arranged on the inner fixed top wall and the inner bottom wall of the spray-dyeing box 51, the spray-dyeing pipes 52 are arranged in a staggered mode at equal intervals from top to bottom along the direction from the cloth inlet to the cloth outlet, and the spray-dyeing pipes 52 are connected with each other through a pipeline. Each spray-dyeing pipe 52 is provided with a plurality of spray-dyeing atomizing heads 53, the spray-dyeing pipe 52 is connected with a dye supply box 54 through a pipeline, and a high-pressure pump 55 is arranged on a connecting pipeline between the dye supply box 54 and the spray-dyeing pipe 52. After an acid dye agent with the proportion of 3-6% (o.w.f) to the grey cloth is put into a dye supply box 54, the acid dye agent is fed into a spray-dyeing atomizing head 53 through a high-pressure pump 55, the acid dye agent is sprayed out after being atomized by the spray-dyeing atomizing head 53 and is uniformly sprayed on the grey cloth, and the acid dye agent and the cation active agent form lake due to dip-dyeing by the cation active agent before the grey cloth, so that dyeing of the grey cloth is completed. The water squeezing assembly 15 is also installed on the spray-dyeing box 51 at the cloth outlet, so that the acid dye agent contained in the gray fabric is squeezed out and drops on the bottom wall of the spray-dyeing box 51, the bottom wall of the spray-dyeing box 51 is obliquely arranged, and the lowest part of the bottom wall of the spray-dyeing box 51 is connected with the dye supply box 54 through a pipeline, so that the acid dye agent can flow back into the dye supply box 54 to be recycled.

S6, referring to FIG. 4, the grey cloth is led into the cold washing box 6, an air supply pipe is arranged on the side wall of the cold washing box 6 and connected with the air cooler 61 through a pipeline, cold air is supplied into the cold washing box 6 through the air cooler 61 through the pipeline, the temperature in the cold washing box 6 is kept at about 18-25 ℃, and the lake on the grey cloth is solidified on the grey cloth in a cold mode. Two spray pipes 62 are further mounted on the inner top wall of the cold washing box 6, cold water spray heads 63 are arranged on the spray pipes 62, the two spray pipes 62 are connected with cold water pumps 64 through pipelines, and then cold water of 12-20 ℃ is sprayed to the grey cloth through the cold water pumps 64 and the spray heads, so that loose colors on the grey cloth are washed away, and the dyeing effect of the grey cloth is guaranteed.

The implementation principle of the less-water printing and dyeing process in the embodiment of the application is as follows: firstly, the grey cloth is subjected to degumming treatment by high-pressure washing equipment 1; then the grey cloth is subjected to alkali cleaning through a water return type cleaning device 2; carrying out oxidation bleaching on the grey cloth; carrying out cation attachment pretreatment on the grey cloth by using a cation active agent solution with the specific gravity of 5-12% (o.w.f) of the grey cloth; using an acid dyeing agent with the proportion of 3-6% (o.w.f) to the grey cloth to carry out dyeing treatment on the grey cloth through an atomization spray dyeing device 5; and (3) washing and fixing the dyed grey cloth by using cold water at the temperature of 12-20 ℃. The whole dyeing process of the grey cloth does not need a large amount of water to perform soaking washing and soaking dyeing on the grey cloth, thereby achieving the effect of water saving.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A less-water printing and dyeing process is characterized in that: the method comprises the following steps:

s1, carrying out alkali washing and desizing treatment on the grey cloth by high-pressure washing equipment (1);

s2, washing the grey cloth through a water return type washing device (2);

s3, oxidizing and bleaching the grey cloth;

and S5, dyeing the grey cloth by using an acid dyeing agent with the specific gravity of 3-6% (o.w.f) of the grey cloth through an atomization spray dyeing device (5).

2. The low water printing and dyeing process of claim 1, wherein: the high-pressure flushing device (1) comprises a flushing tank (11), a plurality of flushing pipes (12) are arranged on the flushing tank (11), each flushing pipe (12) is provided with a high-pressure spray head (13), and the flushing pipes (12) are connected with a water supply assembly (14).

3. The low water printing and dyeing process of claim 2, wherein: the water supply assembly (14) comprises a water supply tank (141), a water outlet is formed in the water supply tank (141), a pressure pump (143) is arranged on the water outlet, the water outlet is connected with the flushing pipe (12) through a pipeline, and a medicine feeding port (142) is formed in the water supply tank (141).

4. The low water printing and dyeing process of claim 3, wherein: set up puddler (144) in feed water tank (141), be provided with stirring vane (146) on puddler (144), be provided with the stirring driving piece that drives stirring vane (146) stirring on feed water tank (141).

5. The low water printing and dyeing process of claim 2, wherein: a wringing assembly (15) is arranged on the inner wall of the flushing tank (11) along the tail end of the grey cloth conveying direction, and the wringing assembly (15) comprises two wringing rollers (151) and a squeezing driving piece for driving the two wringing rollers (151) to approach each other; be provided with return water tank (16) on flush tank (11) diapire, return water tank (16) pass through pipeline and water supply component (14).

6. The low water printing and dyeing process of claim 1, wherein: backwater formula cleaning equipment (2) is including wasing pond (21), wash in pond (21) and be provided with a plurality of rolling discs (22) along grey cloth direction of transportation equidistant, be provided with a plurality of hitting roller (24) on rolling disc (22), be provided with drive rolling disc (22) pivoted on the lateral wall in washing pond (21) and hit motor (23).

7. The low water printing and dyeing process of claim 6, wherein: an arched material guide plate (25) is arranged below the beating roller (24), the material guide plate (25) and the side wall of the cleaning pool (21) are arranged in a clearance mode, and an arc-shaped guide portion is arranged between the side wall and the bottom wall of the cleaning pool (21).

8. The low water printing and dyeing process of claim 1, wherein: atomizing spray-painting equipment (5) is including spouting dye box (51), it is provided with a plurality of spray-painting pipes (52) to spout dye box (51) inner wall and interior diapire along grey cloth direction of delivery equidistant crisscross, and is a plurality of spray-painting pipe (52) all have dyestuff supply spare, every spray-painting pipe (52) are gone up and have all been seted up a plurality of spray-painting atomising heads (53).

9. The low water printing and dyeing process of claim 1, wherein: further comprising the steps of: and S6, washing and fixing the dyed grey cloth by using cold water at the temperature of 12-20 ℃.