Dyeing device for improving color fastness of fabric

Abstract

The utility model relates to the technical field of fabric dyeing, in particular to a dyeing device for improving fabric color fastness, which comprises a dyeing box, an input roller and an output roller are rotatably 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 arranged between the left sides of the right filter screens and the inner wall of the dyeing box, and a right channel is arranged between the right filter screens and the inner wall of the dyeing box. A left filter screen is arranged between every two adjacent right filter screens, right channels exist between the right sides of the left filter screens and the inner wall of the dyeing box, the left filter screens, the right filter screens, the left channels and the right channels jointly form a serpentine 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 fabric dyeing device has the effect of improving the fabric dyeing quality.

Description

Technical Field

[0001] The utility model relates to the technical field of fabric dyeing, in particular to a dyeing device for improving the color fastness of fabrics. Background Art

[0002] Fabric color fastness is used to reflect the degree of fading of textiles under the influence of external factors and is an important indicator for measuring fabric quality.

[0003] In the related art, a Chinese patent with authorization announcement number CN220318167U provides a textile fabric dyeing machine, which includes a water storage tank, a dyeing cabinet is arranged in the water storage tank, a stirring rod is rotatably arranged in the dyeing cabinet, a conveying roller 1 and a conveying roller 2 are rotatably arranged above the dyeing cabinet, a fixed column is arranged in the dyeing cabinet, and the fabric is wound around the fixed column, the conveying roller 1 and the conveying roller 2. The dye is stored in the dyeing cabinet, and the hot water stored in the water storage tank is used to keep the dye warm so that the temperature of the dye is not easy to decrease. At the same time, the stirring rod stirs the dye in the dyeing cabinet to make the dye evenly mixed. In the process of the conveying roller 1 and the conveying roller 2 driving the fabric to move, the fabric is immersed in the dyeing cabinet for dyeing.

[0004] In the process of realizing this application, the inventors found that there are at least the following problems in this technology: during the fabric dyeing process, impurities such as thread ends and lint on the fabric will remain in the dyeing cabinet and mix with the dye. When there are more impurities in the dye, the penetration and adhesion ability of the dye decrease, which prevents the dye from being effectively dyed onto the fabric fibers, thereby reducing the fabric dyeing quality. Utility Model Content

[0005] In order to improve the dyeing quality of fabrics, the present application provides a dyeing device for improving the color fastness of fabrics.

[0006] The present application provides a dyeing device for improving the color fastness of fabrics using the following technical solutions:

[0007] A dyeing device for improving the color fastness of fabrics comprises a dyeing box, wherein an input roller and an output roller are rotatably arranged in the dyeing box, a plurality of right filter screens are arranged between the input roller and the output roller, a left channel exists between the left side of the right filter screen and the inner wall of the dyeing box, a left filter screen is arranged between adjacent right filter screens, a right channel exists between the right side of the 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 together form a serpentine channel, and a flow guide component is arranged on the dyeing box, and the flow guide component is used to make the dye flow from the input roller to the output roller.

[0008] By adopting the above technical scheme, the fabric moves from the input roller to the output roller along the serpentine channel, and the dye flows from the input roller to the output roller. In the process of dyeing the fabric, the dye flow has a flushing effect on the fabric. Under the effect of dye flushing, the lines, lint and other impurities on the side of the fabric facing the output roller are separated from the fabric. When the fabric moves from the left channel to the right channel, one side of the fabric faces the output roller. At this time, the lines, lint and other impurities on this side of the fabric are mixed with the dye and move from the input roller to the output roller, and the left filter located between the fabrics filters the dye to prevent the lines, lint and other impurities from continuing to move with the dye to the output roller, so that the dye is filtered before the fabric is dyed, and the lines, lint and other impurities are attached to the left filter under the combined action of the dye thrust and the left filter, so that the lines, lint and other impurities are not easy to When the fabric flows in the dye, when the fabric moves from the right channel to the left channel, the other side of the fabric faces the output roller. At this time, impurities such as lines and lint on the other side of the fabric move from the input roller to the output roller, and the right filter located between the fabrics filters the dye to prevent impurities such as lines and lint from continuing to follow the dye to move to the output roller, so that the fabric is dyed after the dye is filtered, and impurities such as lines and lint adhere to the right filter under the combined action of the dye thrust and the right filter, making it difficult for impurities such as lines and lint to flow in the dye. Therefore, in the process of fabric movement and dye flow, the dye mixed with impurities such as lines and lint will be filtered before dyeing the fabric again, reducing the situation where the penetration and adhesion ability are reduced due to more impurities in the dye, improving the dyeing quality of the fabric, and thus enhancing the color fastness of the fabric.

[0009] Preferably, the diversion assembly includes a diversion pump and a diversion pipe, one end of the diversion pipe is connected to the dyeing box, the other end of the diversion pipe is connected to the input end of the diversion pump, and the output end of the diversion pump is connected to the dyeing box.

[0010] By adopting the above technical solution, after the diversion pump is started, the diversion pump pumps the dye in the dyeing box from the output roller position into the diversion pipe, and then pumps the dye in the diversion pipe into the input roller position of the dyeing box, thereby achieving the effect of dye circulation between the diversion pipe and the dyeing box, and then making the dye flow from the input roller to the output roller.

[0011] Preferably, a transition upper box is fixedly arranged on the top of the dyeing box, the diversion pump is fixedly arranged on the top of the transition upper box, the output end of the diversion pump is connected with the transition upper box, and a plurality of nozzles are connected at the bottom of the transition upper box, and the nozzles pass through the top wall of the dyeing box.

[0012] By adopting the above technical solution, the dye in the guide pipe is pumped into the transition upper box through the guide pump, and the dye in the transition upper box is evenly sprayed in the dyeing box through the nozzle.

[0013] Preferably, a group of pressure pumps are arranged on the top of the transition upper box, and the output end of the pressure pump is interconnected with the transition upper box.

[0014] By adopting the above technical solution, after the pressure pump is started, the pressure pump increases the air pressure in the transition upper box, accelerates the speed of the dye spraying from the nozzle, and improves the spraying force of the nozzle.

[0015] Preferably, a transition lower box is arranged on the end of the guide pipe away from the guide pump, and connecting ports are provided on the opposite sides of the transition lower box and the dyeing box, and the connecting ports are connected to each other. The output roller is located at the connecting port, and a discharge port is provided on the top of the transition lower box, and the discharge port is used for outputting fabrics.

[0016] By adopting the above technical solution, the fabric in the dyeing box enters the transition lower box from the connecting port through the output roller guidance, the fabric in the transition lower box is moved out from the discharge port, the dye in the dyeing box enters the transition lower box through the connecting port, and the dye in the transition lower box flows into the guide pipe.

[0017] Preferably, a pull-out seat is fixedly provided on the rear side of the left filter and the rear side of the right filter, and the pull-out seat passes through the side wall of the dyeing box. The pull-out seat is fixedly provided with a fixed seat at one end outside the dyeing box, and a fixing bolt is passed through the fixed seat, and the fixing bolt is threadedly connected to the side wall of the dyeing box.

[0018] By adopting the above technical solution, when cleaning the left filter screen and the right filter screen, the fixing bolts are removed, and then the fixing seat is pulled to move the left filter screen and the right filter screen out of the dyeing box.

[0019] Preferably, an extrusion seat is provided in both the left channel and the right channel, an extrusion shell is sleeved on the extrusion seat, the extrusion shell is fixedly connected to the dyeing box, an extrusion spring is provided in the extrusion shell, the extrusion spring is fixedly connected to the extrusion seat, an extrusion roller is rotatably provided on the side of the extrusion seat away from the extrusion spring, a guide roller is provided on the side of the extrusion roller away from the extrusion spring, the guide roller is rotatably connected to the inner wall of the dyeing box, and the fabric moves between the guide roller and the extrusion roller.

[0020] By adopting the above technical solution, when the fabric moves in the serpentine channel, the fabric passes through the gap between the guide roller and the squeezing roller. The guide roller and the squeezing roller squeeze the fabric, which will increase the coloration of the dye on the fabric, thereby improving the dyeing quality of the fabric.

[0021] Preferably, an adjustment plate is fixedly arranged at one end of the extrusion spring away from the extrusion seat, the adjustment plate is slidably connected to the extrusion shell, an adjustment screw is rotatably arranged on the side of the adjustment plate away from the extrusion spring, the adjustment screw penetrates the side wall of the dyeing box, and the adjustment screw is threadedly connected to the dyeing box.

[0022] By adopting the above technical solution, the adjusting bolt is rotated to move the adjusting plate along the extrusion shell, thereby adjusting the elastic force of the extrusion spring, thereby adjusting the extrusion effect of the extrusion roller and the guide roller on the fabric.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up the dyeing box, input roller, output roller, right filter, left channel, left filter, right channel, serpentine channel and diversion component, the dye mixed with impurities such as lines and lint will be filtered before dyeing the fabric again, reducing the situation where the impurities in the dye lead to a decrease in penetration and adhesion, improving the dyeing quality of the fabric, and thus enhancing the color fastness of the fabric;

[0025] 2. By setting up a guide pipe and a guide pump, the dye can circulate between the guide pipe and the dyeing box, so that the dye flows from the input roller to the output roller;

[0026] 3. Move the left filter and the right filter out of the dyeing box by setting the pull-out seat, the fixing seat and the fixing bolts. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a cross-sectional view of a dyeing device for improving the color fastness of fabrics in an embodiment of the present application.

[0028] Figure 2 It is a cross-sectional view showing the positional relationship between the right filter and the left filter in the embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view showing the positional relationship between the pressure pump and the transition upper box in the embodiment of the present application.

[0030] Figure 4 yes Figure 3 Enlarged view of part A.

[0031] Figure 5 It is a cross-sectional view showing the positional relationship between the fabric and the guide roller in the embodiment of the present application.

[0032] Figure 6 It is a cross-sectional view showing the connection relationship between the squeezing roller and the dyeing box in the embodiment of the present application.

[0033] Explanation of the reference numerals: 1. dyeing box; 11. input roller; 111. feed port; 12. output roller; 2. serpentine channel; 21. right filter screen; 211. left channel; 22. left filter screen; 221. right channel; 3. fabric; 31. front side of fabric; 32. back side of fabric; 4. flow guide assembly; 41. flow guide pipe; 42. flow guide pump; 43. transition upper box; 431. nozzle; 432. pressure pump; 44. transition lower box; 441. connecting port; 442. discharge port; 5. pull-out seat; 51. fixing seat; 52. fixing bolt; 6. guide roller; 7. extrusion roller; 71. extrusion seat; 8. extrusion shell; 81. extrusion spring; 9. adjustment plate; 91. adjustment screw. DETAILED DESCRIPTION

[0034] The following is combined with Figure 1-6 This application is described in further detail.

[0035] The present application embodiment discloses a dyeing device for improving the color fastness of fabrics. Figures 1 to 5, including a dyeing box 1, a feed inlet 111 is provided on the side wall of the dyeing box 1, and the feed inlet 111 is close to the top of the dyeing box 1. An input roller 11 and an output roller 12 are rotatably arranged in the dyeing box 1, 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 screen 21 is arranged in a horizontal direction. There is a left channel 211 between the left side of the right filter screen 21 and the inner wall of the dyeing box 1, and the right side, front side and rear side of the right filter screen 21 are all in contact with 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 arranged in a horizontal direction. There is a right channel 221 between the right side of the left filter screen 22 and the inner wall of the dyeing box 1, and the left side, front side and rear side of the left filter screen 22 are all in contact with the inner wall of the dyeing box 1. The left filter 22, the right filter 21, the left channel 211 and the right channel 221 together form a serpentine channel 2, which allows the fabric 3 to move from the input pipe to the output roller 12 along the S shape. The flow guide component 4 is installed on the dyeing box 1, and the flow guide component 4 is used to allow the 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, and the dye flows from the input roller 11 to the output roller 12. During the dyeing process of the fabric 3, the dye flow has a flushing effect on the fabric 3. Under the effect of the dye flushing, impurities such as lines and lint on the side of the fabric 3 facing the output roller 12 are separated from the fabric 3. When the fabric 3 moves from the left channel 211 to the right channel 221, the front side of the fabric 3 faces the output roller 12. At this time, impurities such as lines and fluff on the front side 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 22 located between the front side of the fabric 3 and the back side of the fabric 3 filters the dye, preventing impurities such as lines and fluff from continuing to move with the dye to the output roller 12. The fabric 3 is dyed after the dye is filtered, and impurities such as lines and fluff are attached to the left filter 22 under the combined action of the dye thrust and the left filter 22, so that impurities such as lines and fluff 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 side of the fabric 3 faces the output roller 12. At this time, impurities such as lines and fluff on the back side of the fabric 3 move from the input roller 11 to the output roller 12, and the right filter 21 located between the back side of the fabric 3 and the front side of the fabric 3 filters the dye, preventing impurities such as lines and fluff from continuing to move with the dye to the output roller 12. The fabric 3 is dyed after the dye is filtered, and impurities such as lines and lint are attached to the right filter 21 under the combined action of the dye thrust and the right filter 21, so that the impurities such as lines and lint are not easy to flow in the dye. Therefore, during the movement of the fabric 3 and the flow of the dye, the dye mixed with impurities such as lines and lint will be filtered before the fabric 3 is dyed again, reducing the situation where the penetration and adhesion abilities are reduced due to more impurities in the dye, improving the dyeing quality of the fabric 3, and thus enhancing the color fastness of the fabric 3.

[0036] In order to make the dye flow from the input roller 11 to the output roller 12, refer to Figures 1 to 5 The flow guide assembly 4 includes a flow guide pump 42 and a flow guide pipe 41. One end of the flow guide pipe 41 is interconnected with a position near the bottom of the dyeing box 1, and the other end of the flow guide pipe 41 is interconnected with the input end of the flow guide pump 42. The output end of the flow guide pump 42 is interconnected with a position near the top of the dyeing box 1. After the flow guide pump 42 is started, the flow guide pump 42 pumps the dye in the dyeing box 1 from the output roller 12 into the flow guide pipe 41, and then pumps the dye in the flow guide pipe 41 into the input roller 11 of the dyeing box 1. The effect of the dye circulating between the flow guide pipe 41 and the dyeing box 1 is achieved, and the dye flows from the input roller 11 to the output roller 12.

[0037] Reference Figure 3 A transition upper box 43 is installed on the top of the dyeing box 1, and a diversion pump 42 is installed on the top of the transition upper box 43, and the output end of the diversion pump 42 is connected to the transition upper box 43. A plurality of nozzles 431 are connected to the bottom of the transition upper box 43, and the nozzles 431 penetrate the top wall of the dyeing box 1. A group of pressure pumps 432 are installed on the top of the transition upper box 43, and the output end of the pressure pump 432 is connected to the transition upper box 43. The dye in the diversion pipe 41 is pumped into the transition upper box 43 through the diversion pump 42, and the dye in the transition upper box 43 is evenly sprayed in the dyeing box 1 through the nozzles 431. After the pressure pump 432 is started, the pressure pump 432 increases the air pressure in the transition upper box 43, speeds up the speed of the dye spraying out of the nozzles 431, and increases the spraying force of the nozzles 431.

[0038] Reference Figure 1 and Figure 5 A transition lower box 44 is installed on one side of the dyeing box 1, and a communication port 441 is provided on the opposite side of the transition lower box 44 and the dyeing box 1. The communication ports 441 are connected to each other, and the output roller 12 is located at the communication port 441. The transition lower box 44 is connected to the end of the guide pipe 41 away from the guide pump 42 near the bottom. The 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 guide pipe 41. A discharge port 442 is provided on the top of the transition lower box 44, and the discharge port 442 is used for the fabric 3 to be discharged. The fabric 3 in the dyeing box 1 is guided by the output roller 12 to enter the transition lower box 44 from the communication port 441, and the fabric 3 in the transition lower box 44 is removed from the discharge port 442.

[0039] In order to remove the left filter 22 and the right filter 21 from the dyeing box 1, refer to Figure 3 and Figure 4, a pull-out seat 5 is installed on the rear side of the left filter 22 and the rear side of the right filter 21, and the pull-out seat 5 penetrates the side wall of the dyeing box 1. A fixed seat 51 is installed on one end of the pull-out seat 5 located outside the dyeing box 1, and a fixing bolt 52 is penetrated on the fixing seat 51, and the fixing bolt 52 is threadedly connected with the side wall of the dyeing box 1. When cleaning the left filter 22 and the right filter 21, the fixing bolt 52 is removed, and then the fixing seat 51 is pulled to remove the left filter 22 and the right filter 21 from the dyeing box 1.

[0040] In order to facilitate dyeing of fabric 3, refer to Figures 1 to 6 , an extrusion seat 71 is installed in both the left channel 211 and the right channel 221, an extrusion shell 8 is sleeved on the extrusion seat 71, the extrusion seat 71 is slidably connected with the extrusion shell 8, and the extrusion shell 8 is welded to the dyeing box 1. An adjustment plate 9 is slidably installed in the extrusion shell 8, and an extrusion spring 81 is welded between the adjustment plate 9 and the extrusion seat 71. An adjustment screw 91 is rotatably arranged on the side of the adjustment plate 9 away from the extrusion spring 81, and the adjustment screw 91 penetrates the side wall of the dyeing box 1, and the adjustment screw 91 is threadedly connected with the dyeing box 1. An extrusion roller 7 is rotatably arranged on the side of the extrusion seat 71 away from the extrusion spring 81, and a guide roller 6 is installed on the side of the extrusion roller 7 away from the extrusion spring 81, and the guide roller 6 is rotatably connected with the inner wall of the dyeing box 1, and the guide roller 6 and the extrusion roller 7 are provided for the fabric 3 to move. During the movement of the fabric 3 in the serpentine channel 2, the fabric 3 passes through the gap between the guide roller 6 and the extrusion roller 7, and the guide roller 6 and the extrusion roller 7 squeeze the fabric 3, which will improve the color of the dye on the fabric 3, thereby improving the dyeing quality of the fabric 3. The adjusting bolt is rotated to move the adjusting plate 9 along the extrusion shell 8 , thereby adjusting the elastic force of the extrusion spring 81 , thereby adjusting the extrusion effect of the extrusion roller 7 and the guide roller 6 on the fabric 3 .

[0041] The implementation principle of a dyeing device for improving the color fastness of fabrics in the embodiment of the present application is as follows: the fabric 3 moves from the input roller 11 to the output roller 12 along the serpentine channel 2, and the dye flows from the input roller 11 to the output roller 12. During the dyeing process of the fabric 3, the dye flow plays a role of flushing the fabric 3. Under the effect of the dye flushing, the impurities such as lines and fluff on the side of the fabric 3 facing the output roller 12 are separated from the fabric 3. When the fabric 3 moves from the left channel 211 to the right channel 221, the front of the fabric 3 faces the output roller 12. At this time, the impurities such as lines and fluff on the front 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 22 located between the front and back of the fabric 3 filters the dye to prevent the impurities such as lines and fluff from continuing to move with the dye to the output roller 12. The fabric 3 is dyed after the dye is filtered, and the impurities such as lines and fluff are attached to the left filter 22 under the joint action of the dye thrust and the left filter 22, so that the impurities such as lines and fluff 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 of the fabric 3 faces the output roller 12. At this time, impurities such as lines and fluff on the back of the fabric 3 move from the input roller 11 to the output roller 12, and the right filter 21 located between the back of the fabric 3 and the front of the fabric 3 filters the dye, blocking the impurities such as lines and fluff from continuing to follow the dye to move to the output roller 12. The fabric 3 is dyed after the dye is filtered, and the impurities such as lines and fluff adhere to the right filter 21 under the combined action of the dye thrust and the right filter 21, so that the impurities such as lines and fluff are not easy to flow in the dye. Therefore, during the movement of the fabric 3 and the flow of the dye, the dye mixed with impurities such as lines and fluff will be filtered before the fabric 3 is dyed again, reducing the situation where the penetration and adhesion abilities of the dye are reduced due to the large number of impurities, improving the dyeing quality of the fabric 3, and thus enhancing the color fastness of the fabric 3.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dyeing device for improving the color fastness of fabrics, comprising a dyeing box (1), wherein an input roller (11) and an output roller (12) are rotatably arranged in the dyeing box (1), characterized in that: A plurality of right filter screens (21) are arranged between the input roller (11) and the output roller (12); a left channel (211) exists between the left side of the right filter screen (21) and the inner wall of the dyeing box (1); a left filter screen (22) is arranged between adjacent right filter screens (21); a right channel (221) exists between the right side of the left filter screen (22) and the inner wall of the dyeing box (1); the left filter screen (22), the right filter screen (21), the left channel (211) and the right channel (221) together form a serpentine channel (2); a flow guide component (4) is arranged on the dyeing box (1); the flow guide component (4) is used to make the dye flow from the input roller (11) to the output roller (12).

2. A dyeing device for improving the color fastness of fabrics according to claim 1, characterized in that: The flow guide component (4) comprises a flow guide pump (42) and a flow guide pipe (41); one end of the flow guide pipe (41) is interconnected with the dyeing box (1); the other end of the flow guide pipe (41) is interconnected with the input end of the flow guide pump (42); and the output end of the flow guide pump (42) is interconnected with the dyeing box (1).

3. A dyeing device for improving the color fastness of fabrics according to claim 2, characterized in that: A transition upper box (43) is fixedly arranged on the top of the dyeing box (1), the diversion pump (42) is fixedly arranged on the top of the transition upper box (43), the output end of the diversion pump (42) is connected to the transition upper box (43), and a plurality of nozzles (431) are arranged on the bottom of the transition upper box (43), and the nozzles (431) penetrate the top wall of the dyeing box (1).

4. A dyeing device for improving the color fastness of fabrics according to claim 3, characterized in that: A group of pressure pumps (432) are arranged on the top of the transition upper box (43), and the output end of the pressure pump (432) is communicated with the transition upper box (43).

5. A dyeing device for improving the color fastness of fabrics according to claim 2, characterized in that: A transition lower box (44) is arranged on one end of the guide pipe (41) away from the guide pump (42), and a connecting port (441) is provided on the opposite surface of the transition lower box (44) and the dyeing box (1), and the connecting ports (441) are connected to each other. The output roller (12) is located at the connecting port (441), and a discharge port (442) is provided on the top of the transition lower box (44), and the discharge port (442) is used for outputting the fabric (3).

6. A dyeing device for improving the color fastness of fabrics according to claim 1, characterized in that: A pull-out seat (5) is fixedly arranged on the rear side of the left filter (22) and the rear side of the right filter (21); the pull-out seat (5) passes through the side wall of the dyeing box (1); a fixed seat (51) is fixedly arranged at one end of the pull-out seat (5) located outside the dyeing box (1); a fixing bolt (52) passes through the fixing seat (51); and the fixing bolt (52) is threadedly connected to the side wall of the dyeing box (1).

7. A dyeing device for improving color fastness of fabrics according to claim 1, characterized in that: An extrusion seat (71) is arranged in both the left channel (211) and the right channel (221); an extrusion shell (8) is sleeved on the extrusion seat (71); the extrusion shell (8) is fixedly connected to the dyeing box (1); an extrusion spring (81) is arranged in the extrusion shell (8); the extrusion spring (81) is fixedly connected to the extrusion seat (71); an extrusion roller (7) is rotatably arranged on the side of the extrusion seat (71) away from the extrusion spring (81); a guide roller (6) is arranged on the side of the extrusion roller (7) away from the extrusion spring (81); the guide roller (6) is rotatably connected to the inner wall of the dyeing box (1); and the fabric (3) moves between the guide roller (6) and the extrusion roller (7).

8. A dyeing device for improving the color fastness of fabrics according to claim 7, characterized in that: An adjusting plate (9) is fixedly arranged at one end of the extrusion spring (81) away from the extrusion seat (71); the adjusting plate (9) is slidably connected to the extrusion shell (8); an adjusting screw (91) is rotatably arranged at one side of the adjusting plate (9) away from the extrusion spring (81); the adjusting screw (91) penetrates the side wall of the dyeing box (1); and the adjusting screw (91) is threadedly connected to the dyeing box (1).

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