CN222878328U - Dyeing device for improving color fastness of fabric - Google Patents

Abstract

The utility model relates to a dyeing device for improving fabric color fastness, which relates to the technical field of fabric dyeing and comprises a dyeing box, wherein an input roller and an output roller are rotationally arranged in the dyeing box, a plurality of right filter screens are arranged between the input roller and the output roller, a left channel is formed between the left side of each right filter screen and the inner wall of the dyeing box, a left filter screen is arranged between the right adjacent filter screens, a right channel is formed between the right side of each left filter screen and the inner wall of the dyeing box, the left filter screen, the right filter screen, the left channel and the right channel jointly form a snake-shaped channel, and a flow guide assembly is arranged on the dyeing box and used for enabling dye to flow from the input roller to the output roller. The utility model has the effect of improving the dyeing quality of the fabric.

Description

Dyeing device for improving color fastness of fabric

Technical Field

The utility model relates to the technical field of fabric dyeing, in particular to a dyeing device for improving fabric color fastness.

Background

The color fastness of the fabric is used for reflecting the fading degree of the textile under the influence of external factors, and is an important index for measuring the quality of the fabric.

The Chinese patent with the authorized bulletin number of CN220318167U in the related art provides a textile fabric dyeing machine, which comprises a water storage tank, wherein a dyeing cabinet is arranged in the water storage tank, a stirring rod is arranged in the dyeing cabinet in a rotating manner, a first conveying roller and a second conveying roller are arranged above the dyeing cabinet in a rotating manner, a fixed column is arranged in the dyeing cabinet, and fabrics are wound on the fixed column, the first conveying roller and the second conveying roller. Dye is stored in the dyeing cabinet, hot water is stored in the water storage tank to keep the temperature of the dye, so that the temperature of the dye is not easy to reduce, meanwhile, the stirring rod stirs the dye in the dyeing cabinet, the dye is uniformly mixed, and the fabric is soaked in the dyeing cabinet for dyeing in the process that the first conveying roller and the second conveying roller drive the fabric to move.

In the process of realizing the application, the inventor finds that at least the following problems exist in the technology that in the process of dyeing the fabric, impurities such as thread ends, flocks and the like on the fabric can remain in a dyeing cabinet to be mixed with the dye, and when the impurities in the dye are more, the permeability and the adhesion capability of the dye are reduced, so that the dye is prevented from being effectively dyed on fabric fibers, and the dyeing quality of the fabric is reduced.

Disclosure of utility model

In order to improve the dyeing quality of the fabric, the application provides a dyeing device for improving the color fastness of the fabric.

The dyeing device for improving the color fastness of the fabric provided by the application adopts the following technical scheme:

The utility model provides an improve dyeing apparatus of surface fabric colour fastness, includes the dyeing case, the dyeing incasement rotation sets up input roller and output roller, set up a plurality of right filter screens between input roller and the output roller, there is left passageway in the left side of right filter screen and dyeing incasement wall, it is adjacent set up left filter screen between the right filter screen, there is right passageway on the right side of left filter screen and the dyeing incasement wall, left filter screen, right filter screen, left passageway and right passageway form the snakelike passageway jointly, set up the water conservancy diversion subassembly on the dyeing case, the water conservancy diversion subassembly is used for making the dyestuff flow to the output roller by the input roller.

Through the technical scheme, the fabric moves from the input roller to the output roller along the serpentine channel, meanwhile, the dye continuously moves from the input roller to the output roller, the fabric is dyed after being filtered, and the impurities such as the line, the wool and the like are attached to the left filter screen under the combined action of the dye thrust and the left filter screen, so that the impurities such as the line, the wool and the like are not easy to flow in the dye, when the fabric moves from the right channel to the left channel, one side of the fabric faces to the output roller, at the moment, the impurities such as the line, the wool and the like on the other side of the fabric are easy to move from the input roller to the output roller, the left filter screen between the fabrics filters the dye, the impurities such as the line, the wool and the like are blocked from continuing to move to the output roller, the impurities such as the wool are attached to the left filter screen under the combined action of the dye thrust and the left filter screen, the impurities such as the wool and the wool are not easy to flow in the dye, the filter screen is reduced after the impurities such as the line, the wool and the wool are filtered, the impurities are filtered again, the impurities such as the wool and the wool can not flow in the filter screen are filtered again, and the impurities such as the line and the wool can be filtered again, and the impurities are filtered in the filter, the dyeing quality of the fabric is improved, so that the color fastness of the fabric is enhanced.

Preferably, the diversion component comprises a diversion pump and a diversion pipe, one end of the diversion pipe is communicated with the dyeing box, the other end of the diversion pipe is communicated with the input end of the diversion pump, and the output end of the diversion pump is communicated with the dyeing box.

Through adopting above-mentioned technical scheme, after the guide pump starts, the guide pump pumps the dyestuff in the dyeing case into the honeycomb duct from the delivery roll position, pumps the dyestuff in the honeycomb duct into the input roll position of dyeing case again, realizes dyestuff circulating effect between honeycomb duct and dyeing case, and then makes the dyestuff flow to the delivery roll by the input roll.

Preferably, the top of the dyeing box is fixedly provided with a transition upper box, the guide pump is fixedly arranged at the top of the transition upper box, the output end of the guide pump is communicated with the transition upper box, the bottom of the transition upper box is communicated with a plurality of spray heads, and the spray heads penetrate through the top wall of the dyeing box.

Through adopting above-mentioned technical scheme, dyestuff in the honeycomb duct is through the pump of guide to go into transition upper box, and the dyestuff in the transition upper box passes through the shower nozzle and evenly sprays in the dyeing case.

Preferably, a group of pressurizing pumps are arranged at the top of the transition upper box, and the output ends of the pressurizing pumps are communicated with the transition upper box.

By adopting the technical scheme, after the pressure pump is started, the pressure pump increases the air pressure in the transition upper box, accelerates the speed of dye ejected from the nozzle, and improves the ejection force of the nozzle.

Preferably, the diversion pipe is far away from the diversion pump one end and is communicated with the transition lower box, the transition lower box and the dyeing box are both provided with communication ports, the communication ports are communicated with each other, the output roller is positioned at the communication port, the top of the transition lower box is provided with a discharge port, and the discharge port is used for outputting fabrics.

Through adopting above-mentioned technical scheme, the surface fabric of dyeing incasement gets into the transition lower box from the intercommunication mouth through the delivery roll direction, and the surface fabric of transition lower incasement shifts out from the discharge gate, and the dyestuff of dyeing incasement gets into the transition lower box through the intercommunication mouth, and the dyestuff of transition lower incasement flows into the honeycomb duct.

Preferably, the rear sides of the left filter screen and the right filter screen are respectively fixedly provided with a drawing seat, the drawing seats penetrate through the side wall of the dyeing box, one end of the drawing seats outside the dyeing box is fixedly provided with a fixing seat, the fixing seat is penetrated by a fixing bolt, and the fixing bolt is in threaded connection with the side wall of the dyeing box.

Through adopting above-mentioned technical scheme, when cleaning left filter screen and right filter screen, dismantle fixing bolt, then pull the fixing base, make left filter screen and right filter screen follow dyeing incasement and shift out.

As the preference, all set up the extrusion seat in left passageway and the right passageway, the extrusion shell is established to the cover on the extrusion seat, extrusion shell and dye vat fixed connection, set up extrusion spring in the extrusion shell, extrusion spring and extrusion seat fixed connection, extrusion seat keeps away from extrusion spring one side and rotates and set up the squeeze roller, squeeze roller keeps away from extrusion spring one side and sets up the guide roll, the guide roll rotates with dye vat inner wall to be connected, supply the surface fabric to remove between guide roll and the squeeze roller.

Through adopting above-mentioned technical scheme, the surface fabric is at snakelike passageway in-process that removes, and the surface fabric passes the clearance between guide roll and the squeeze roll, and guide roll and squeeze roll extrude the surface fabric, will improve the upper chromaticity of dyestuff to the surface fabric to improve surface fabric dyeing quality.

Preferably, the extrusion spring is kept away from extrusion seat one end fixed setting regulating plate, regulating plate and extrusion shell sliding connection, regulating plate keeps away from extrusion spring one side and rotates and set up adjusting screw, adjusting screw runs through the dyeing case lateral wall, adjusting screw and dyeing case threaded connection.

Through adopting above-mentioned technical scheme, make the regulating plate remove along the extrusion shell through rotating adjusting bolt, and then adjust extrusion spring's elasticity to adjust the extrusion effect of squeeze roll and guide roll to the surface fabric.

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

1. Through setting up dyeing case, input roller, output roller, right filter screen, left passageway, left filter screen, right passageway, snakelike passageway and water conservancy diversion subassembly, the dyestuff that mixes impurity such as lines, batting just can dye the surface fabric once more after filtering, reduces the impurity in the dyestuff and leads to the condition that permeability and adhesion drop more, improves surface fabric dyeing quality to strengthen the colour fastness of surface fabric;

2. through the arrangement of the diversion pipe and the diversion pump, the effect of circulation of the dye between the diversion pipe and the dyeing box is realized, and the dye flows from the input roller to the output roller;

3. Through setting up pull seat, fixing base and fixing bolt, remove left filter screen and right filter screen from the dyeing incasement.

Drawings

Fig. 1 is a cross-sectional view of a dyeing apparatus for improving fabric color fastness in an embodiment of the present application.

Fig. 2 is a cross-sectional view showing the positional relationship of the right screen and the left screen in the embodiment of the present application.

Fig. 3 is a cross-sectional view showing the positional relationship of the booster pump and the transitional upper case in the embodiment of the application.

Fig. 4 is an enlarged view of a portion a in fig. 3.

Fig. 5 is a cross-sectional view showing the positional relationship of the facing and the guide roller in the embodiment of the present application.

Fig. 6 is a cross-sectional view showing the connection relationship of the squeeze roll and the dye box in the embodiment of the present application.

The reference numerals are 1, a dyeing box, 11, an input roller, 111, a feed inlet, 12, an output roller, 2, a serpentine channel, 21, a right filter screen, 211, a left channel, 22, a left filter screen, 221, a right channel, 3, a fabric, 31, a fabric front, 32, a fabric back, 4, a flow guiding component, 41, a flow guiding pipe, 42, a flow guiding pump, 43, a transition upper box, 431, a spray head, 432, a pressurizing pump, 44, a transition lower box, 441, a communication port, 442, a discharge port, 5, a drawing seat, 51, a fixed seat, 52, a fixed bolt, 6, a guide roller, 7, a squeezing roller, 71, a squeezing seat, 8, a squeezing shell, 81, a squeezing spring, 9, an adjusting plate and 91, an adjusting screw.

Detailed Description

The application is described in further detail below with reference to fig. 1-6.

The embodiment of the application discloses a dyeing device for improving fabric color fastness. Referring to fig. 1 to 5, the dyeing apparatus comprises a dyeing tank 1, wherein a feed port 111 is formed in the side wall of the dyeing tank 1, and the feed port 111 is close to the top of the dyeing tank 1. The dyeing tank 1 is rotatably provided with an input roller 11 and an output roller 12, and the input roller 11 and the output roller 12 are parallel to each other. The input roller 11 is located above the output roller 12, and the input roller 11 is close to the feed inlet 111. A plurality of right filter screens 21 are installed between the input roller 11 and the output roller 12, and the right filter screens 21 are arranged along the horizontal direction. The left side of the right filter screen 21 and the inner wall of the dyeing box 1 are provided with left channels 211, and the right side, the front side and the rear side of the right filter screen 21 are all attached to the inner wall of the dyeing box 1. A left filter screen 22 is installed between adjacent right filter screens 21, and the left filter screen 22 is disposed in a horizontal direction. The right side of the left filter screen 22 and the inner wall of the dyeing box 1 are provided with a right channel 221, and the left side, the front side and the rear side of the left filter screen 22 are all attached to the inner wall of the dyeing box 1. The left screen 22, right screen 21, left channel 211 and right channel 221 together form a serpentine channel 2, the serpentine channel 2 moving the fabric 3 from the input tube along an S-shape to the output roller 12. The dyeing box 1 is provided with a diversion assembly 4, and the diversion assembly 4 is used for enabling dye to flow from the input roller 11 to the output roller 12. The fabric 3 moves from the input roller 11 to the output roller 12 along the serpentine channel 2, meanwhile, the dye flows from the input roller 11 to the output roller 12, the dye flows to perform a scouring effect on the fabric 3 in the dyeing process of the fabric 3, and impurities such as lines, flocks and the like on one surface of the fabric 3 facing the output roller 12 are separated from the fabric 3 under the scouring effect of the dye. When the fabric 3 moves from the left channel 211 to the right channel 221, the front surface of the fabric 3 faces the output roller 12, at this time, impurities such as lines, flocks and the like on the front surface of the fabric 3 are mixed with the dye and move from the input roller 11 to the output roller 12, and the left filter screen 22 positioned between the front surface of the fabric 3 and the back surface of the fabric 3 filters the dye, so that the impurities such as lines, flocks and the like are prevented from continuously following the dye to move to the output roller 12. The dye is filtered and then the fabric 3 is dyed, and impurities such as lines, flock and the like are attached to the left filter screen 22 under the combined action of the dye thrust and the left filter screen 22, so that the impurities such as lines, flock and the like are not easy to flow in the dye. When the fabric 3 moves from the right channel 221 to the left channel 211, the back surface of the fabric 3 faces the output roller 12, at this time, the impurities such as lines and flock on the back surface of the fabric 3 move from the input roller 11 to the output roller 12, and the right filter screen 21 between the back surface of the fabric 3 and the front surface of the fabric 3 filters the dye, so that the impurities such as lines and flock are prevented from continuously following the movement of the dye to the output roller 12. The dye is filtered and then the fabric 3 is dyed, and impurities such as lines, flock and the like are attached to the right filter screen 21 under the combined action of the dye thrust and the right filter screen 21, so that the impurities such as lines, flock and the like are not easy to flow in the dye. Therefore, in the process of moving the fabric 3 and flowing the dye, the dye mixed with impurities such as lines, flocks and the like can dye the fabric 3 again after filtering, so that the condition that the permeability and the adhesion capability are reduced due to more impurities in the dye is reduced, the dyeing quality of the fabric 3 is improved, and the color fastness of the fabric 3 is enhanced.

In order to flow dye from the input roll 11 to the output roll 12, referring to fig. 1 to 5, the baffle assembly 4 includes a baffle pump 42 and a baffle tube 41. One end of the flow guide pipe 41 is communicated with the position, close to the bottom, of the dyeing box 1, the other end of the flow guide pipe 41 is communicated with the input end of the flow guide pump 42, and the output end of the flow guide pump 42 is communicated with the position, close to the top, of the dyeing box 1. After the diversion pump 42 is started, the diversion pump 42 pumps the dye in the dyeing box 1 into the diversion pipe 41 from the position of the output roller 12, and then pumps the dye in the diversion pipe 41 into the position of the input roller 11 of the dyeing box 1. The effect of circulating the dye between the draft tube 41 and the dye box 1 is achieved, and the dye is further caused to flow from the input roller 11 to the output roller 12.

Referring to fig. 3, a transition upper tank 43 is installed at the top of the dyeing tank 1, a guide pump 42 is installed at the top of the transition upper tank 43, and an output end of the guide pump 42 is communicated with the transition upper tank 43. The bottom of the transition upper box 43 is communicated with a plurality of spray heads 431, and the spray heads 431 penetrate through the top wall of the dyeing box 1. A group of pressurizing pumps 432 are arranged at the top of the transition upper box 43, and the output ends of the pressurizing pumps 432 are communicated with the transition upper box 43. The dye in the guide pipe 41 is pumped into the transition upper box 43 through the guide pump 42, and the dye in the transition upper box 43 is uniformly sprayed into the dyeing box 1 through the spray nozzle 431. After the pressurizing pump 432 is started, the pressurizing pump 432 increases the air pressure in the transition upper tank 43, accelerates the ejection speed of the dye from the ejection head 431, and increases the ejection force of the ejection head 431.

Referring to fig. 1 and 5, a transition lower box 44 is installed at one side of the dyeing box 1, and communication ports 441 are formed at opposite sides of the transition lower box 44 and the dyeing box 1. The communication ports 441 communicate with each other, and the output roller 12 is located at the communication port 441. The position of the transition lower box 44 close to the bottom is communicated with one end of the flow guide pipe 41 away from the flow guide pump 42, and dye in the dyeing box 1 enters the transition lower box 44 through the communication port 441, and the dye in the transition lower box 44 flows into the flow guide pipe 41. A discharge port 442 is formed in the top of the transition lower box 44, and the discharge port 442 is used for outputting the fabric 3. The fabric 3 in the dyeing tank 1 enters the transition lower tank 44 from the communication port 441 through the guide of the output roller 12, and the fabric 3 in the transition lower tank 44 is removed from the discharge port 442.

In order to remove the left and right screens 22 and 21 from the dyeing tank 1, referring to fig. 3 and 4, the drawing seats 5 are installed at the rear sides of the left and right screens 22 and 21, respectively, and the drawing seats 5 penetrate through the side walls of the dyeing tank 1. The drawing seat 5 is arranged at one end of the outer side of the dyeing box 1 and is provided with a fixed seat 51, a fixed bolt 52 is arranged on the fixed seat 51 in a penetrating way, and the fixed bolt 52 is in threaded connection with the side wall of the dyeing box 1. When the left filter screen 22 and the right filter screen 21 are cleaned, the fixing bolts 52 are detached, and then the fixing seat 51 is pulled to remove the left filter screen 22 and the right filter screen 21 from the dyeing tank 1.

In order to facilitate the coloring of the fabric 3 by the dye, referring to fig. 1 to 6, the left channel 211 and the right channel 221 are respectively provided with the extrusion seat 71, the extrusion seat 71 is sleeved with the extrusion shell 8, the extrusion seat 71 is slidably connected with the extrusion shell 8, and the extrusion shell 8 is welded on the dyeing box 1. The adjusting plate 9 is slidably arranged in the extrusion shell 8, and an extrusion spring 81 is welded between the adjusting plate 9 and the extrusion seat 71. The adjusting plate 9 is far away from one side of the extrusion spring 81 and is provided with an adjusting screw 91 in a rotating way, the adjusting screw 91 penetrates through the side wall of the dyeing box 1, and the adjusting screw 91 is in threaded connection with the dyeing box 1. The extrusion seat 71 is kept away from extrusion spring 81 one side and rotates and set up squeeze roller 7, and squeeze roller 7 is kept away from extrusion spring 81 one side and is installed guide roll 6, and guide roll 6 is connected with dyeing case 1 inner wall rotation, supplies surface fabric 3 to remove between guide roll 6 and the squeeze roller 7. In the moving process of the snakelike channel 2, the fabric 3 passes through a gap between the guide roller 6 and the extrusion roller 7, and the guide roller 6 and the extrusion roller 7 extrude the fabric 3, so that the chromaticity of dye on the fabric 3 is improved, and the dyeing quality of the fabric 3 is improved. The adjusting plate 9 is moved along the extrusion shell 8 by rotating the adjusting bolt, and the elasticity of the extrusion spring 81 is adjusted, so that the extrusion effect of the extrusion roller 7 and the guide roller 6 on the fabric 3 is adjusted.

The dyeing device for improving fabric color fastness is implemented by the principle that the fabric 3 moves from an input roller 11 to an output roller 12 along a serpentine channel 2, meanwhile, dye flows from the input roller 11 to the output roller 12, the dye flows to perform a scouring effect on the fabric 3 in the process of dyeing the fabric 3, and impurities such as lines, flocks and the like on one surface of the fabric 3 facing the output roller 12 are separated from the fabric 3 under the scouring effect of the dye. When the fabric 3 moves from the left channel 211 to the right channel 221, the front surface of the fabric 3 faces the output roller 12, at this time, impurities such as lines, flocks and the like on the front surface of the fabric 3 are mixed with the dye and move from the input roller 11 to the output roller 12, and the left filter screen 22 positioned between the front surface of the fabric 3 and the back surface of the fabric 3 filters the dye, so that the impurities such as lines, flocks and the like are prevented from continuously following the dye to move to the output roller 12. The dye is filtered and then the fabric 3 is dyed, and impurities such as lines, flock and the like are attached to the left filter screen 22 under the combined action of the dye thrust and the left filter screen 22, so that the impurities such as lines, flock and the like are not easy to flow in the dye. When the fabric 3 moves from the right channel 221 to the left channel 211, the back surface of the fabric 3 faces the output roller 12, at this time, the impurities such as lines and flock on the back surface of the fabric 3 move from the input roller 11 to the output roller 12, and the right filter screen 21 between the back surface of the fabric 3 and the front surface of the fabric 3 filters the dye, so that the impurities such as lines and flock are prevented from continuously following the movement of the dye to the output roller 12. The dye is filtered and then the fabric 3 is dyed, and impurities such as lines, flock and the like are attached to the right filter screen 21 under the combined action of the dye thrust and the right filter screen 21, so that the impurities such as lines, flock and the like are not easy to flow in the dye. Therefore, in the process of moving the fabric 3 and flowing the dye, the dye mixed with impurities such as lines, flocks and the like can dye the fabric 3 again after filtering, so that the condition that the permeability and the adhesion capability are reduced due to more impurities in the dye is reduced, the dyeing quality of the fabric 3 is improved, and the color fastness of the fabric 3 is enhanced.

The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.

Claims (8)

1. The utility model provides an improve dyeing apparatus of surface fabric colour fastness, includes dyeing case (1), dyeing case (1) internal rotation sets up input roller (11) and output roller (12), wherein set up a plurality of right filter screen (21) between input roller (11) and the output roller (12), there is left passageway (211) left side and dyeing case (1) inner wall of right filter screen (21), adjacent set up left filter screen (22) between right filter screen (21), right side and dyeing case (1) inner wall of left filter screen (22) have right passageway (221), left filter screen (22), right filter screen (21), left passageway (211) and right passageway (221) form snakelike passageway (2) jointly, set up water conservancy diversion subassembly (4) on dyeing case (1), water conservancy diversion subassembly (4) are used for making the dyestuff flow to output roller (12) by input roller (11).

2. The dyeing device for improving fabric color fastness according to claim 1, wherein the diversion component (4) comprises a diversion pump (42) and a diversion pipe (41), one end of the diversion pipe (41) is communicated with the dyeing box (1), the other end of the diversion pipe (41) is communicated with the input end of the diversion pump (42), and the output end of the diversion pump (42) is communicated with the dyeing box (1).

3. The dyeing device for improving fabric color fastness according to claim 2, wherein a transition upper box (43) is fixedly arranged at the top of the dyeing box (1), the flow guide pump (42) is fixedly arranged at the top of the transition upper box (43), the output end of the flow guide pump (42) is communicated with the transition upper box (43), a plurality of spray heads (431) are communicated with the bottom of the transition upper box (43), and the spray heads (431) penetrate through the top wall of the dyeing box (1).

4. The dyeing apparatus for improving fabric color fastness according to claim 3, wherein a group of pressurizing pumps (432) are arranged at the top of the transition upper box (43), and the output ends of the pressurizing pumps (432) are communicated with the transition upper box (43).

5. The dyeing apparatus for improving fabric color fastness according to claim 2, wherein a transition lower box (44) is arranged at one end, far away from the guide pump (42), of the guide pipe (41), communication ports (441) are formed in opposite surfaces of the transition lower box (44) and the dyeing box (1), the communication ports (441) are mutually communicated, the output roller (12) is located at the communication port (441), a discharge port (442) is formed in the top of the transition lower box (44), and the discharge port (442) is used for outputting the fabric (3).

6. The dyeing device for improving fabric color fastness according to claim 1, wherein the rear side of the left filter screen (22) and the rear side of the right filter screen (21) are fixedly provided with drawing seats (5), the drawing seats (5) penetrate through the side wall of the dyeing box (1), one end of each drawing seat (5) located on the outer side of the dyeing box (1) is fixedly provided with a fixing seat (51), the fixing seats (51) are penetrated with fixing bolts (52), and the fixing bolts (52) are in threaded connection with the side wall of the dyeing box (1).

7. The dyeing device for improving fabric color fastness according to claim 1, wherein the left channel (211) and the right channel (221) are internally provided with extrusion seats (71), the extrusion seats (71) are sleeved with extrusion shells (8), the extrusion shells (8) are fixedly connected with the dyeing box (1), the extrusion shells (8) are internally provided with extrusion springs (81), the extrusion springs (81) are fixedly connected with the extrusion seats (71), one side, far away from the extrusion springs (81), of each extrusion seat (71) is rotatably provided with extrusion rollers (7), one side, far away from the extrusion springs (81), of each extrusion roller (7) is provided with guide rollers (6), the guide rollers (6) are rotatably connected with the inner wall of the dyeing box (1), and fabric (3) is supplied between the guide rollers (6) and the extrusion rollers (7).

8. The dyeing apparatus for improving fabric color fastness according to claim 7, wherein one end, far away from the extrusion seat (71), of the extrusion spring (81) is fixedly provided with an adjusting plate (9), the adjusting plate (9) is in sliding connection with the extrusion shell (8), one side, far away from the extrusion spring (81), of the adjusting plate (9) is rotatably provided with an adjusting screw (91), the adjusting screw (91) penetrates through the side wall of the dyeing box (1), and the adjusting screw (91) is in threaded connection with the dyeing box (1).