Low-temperature dyeing device for reactive dye

Abstract

The utility model discloses a reactive dye low-temperature dyeing device which comprises a dyeing box, a first winding roller and a second winding roller which are driven by a driving motor are arranged in the dyeing box, a plurality of rotating rollers located in dye liquor are arranged between the first winding roller and the second winding roller, and a pair of pressing rollers is arranged between every two adjacent rotating rollers. Stirring wheels are arranged at two ends of the rotating roller, and through holes are uniformly formed in the surface of the rotating roller; liquid spraying plates located on the two sides of the dyed fabric are arranged between the rotating roller and the second winding roller, liquid spraying heads are arranged on the liquid spraying plates, the liquid spraying plates are communicated with dye liquor through spraying pipes, and pump bodies and atomizers are arranged on the spraying pipes. The device has the characteristics of improving the dyeing uniformity and the dyeing rate of the reactive dye.

Description

Technical Field

[0001] This utility model relates to a dyeing device, and more particularly to a low-temperature dyeing device for reactive dyes. Background Technology

[0002] Reactive dyes are water-soluble dyes containing active groups in their molecules. They have advantages such as bright colors, complete color spectrum, low cost, simple dyeing process, and high wash fastness and rubbing fastness of the dyed products. They are currently widely used in the dye industry.

[0003] The dyeing equipment used in reactive dyeing generally achieves continuous dyeing operations by immersing or tie-dyeing the dye and steam fixing. Its structure includes a dyeing tank, a winding roller located above the dyeing tank, and a rotating roller located at the bottom of the dyeing tank. The dyed fabric is wound on the winding roller and moves sequentially through the rotating roller at different positions as the winding roller rotates. After steaming, it is conveyed to the winding device.

[0004] However, this type of dyeing device does not properly treat the dye liquor in the dye bath during the dyeing process. Since the dye liquor contains multiple components, it is easy for the dye liquor to precipitate and be unevenly distributed in the dye bath, affecting the dyeing uniformity. Moreover, when the fabric passes through the dye liquor quickly, uneven absorption of the dye by the fibers is likely to occur. This is especially true for fabrics blended with different fibers, as different fibers have different absorption rates of reactive dyes, resulting in uneven dyeing and low dyeing rates. Utility Model Content

[0005] The purpose of this invention is to provide a low-temperature dyeing apparatus for reactive dyes. This invention features improved uniformity and dyeing rate of reactive dye application.

[0006] The technical solution of this utility model is as follows: a low-temperature dyeing device for reactive dyes, including a dyeing box, in which a first winding roller and a second winding roller driven by a drive motor are provided. Between the first winding roller and the second winding roller, several rotating rollers located in the dye liquor are provided. Between two adjacent rotating rollers, a pair of pressing rollers are provided. Both ends of the rotating rollers are provided with stirring wheels. The surface of the rotating rollers is uniformly provided with through holes. Between the rotating rollers and the second winding roller, spray plates are provided on both sides of the dyed fabric. The spray plates are provided with spray heads. The spray plates are connected to the dye liquor through spray pipes. The spray pipes are provided with pumps and atomizers.

[0007] In the aforementioned low-temperature dyeing apparatus for reactive dyes, the blades of the two stirring wheels on the same rotating roller rotate in opposite directions.

[0008] In the aforementioned low-temperature dyeing device for reactive dyes, a drive rod and a limiting rod are respectively provided at both ends of the spray plate. The drive rod is rotatably connected to the dyeing box, and the limiting rod is slidably connected to the dyeing box. A micro motor that drives the drive rod to rotate is provided on the dyeing box, and a guide groove for the limiting rod to slide is provided on the inner wall of the dyeing box.

[0009] In the aforementioned low-temperature dyeing apparatus for reactive dyes, a steaming box is provided on the outside of the dyeing box, and a steam generator is provided inside the steaming box. Above the steam generator, an upper support frame and a lower support frame are provided, which are arranged vertically. The upper support frame is connected vertically along the height of the steaming box. Several upper guide rollers are provided on the upper support frame, and several lower guide rollers are provided on the lower support frame, which are arranged alternately with the upper guide rollers. The lower guide rollers are connected horizontally on the lower support frame.

[0010] In the aforementioned low-temperature dyeing device for reactive dyes, the top of the steaming box is equipped with a push cylinder, and the piston rod of the push cylinder is connected to the upper support frame; the side of the steaming box is equipped with a slide rail, and both ends of the upper support frame are slidably connected to the slide rail.

[0011] In the aforementioned low-temperature dyeing device for reactive dyes, the lower support frame includes a screw and a slide rod distributed in parallel. The screw is connected to an adjusting motor. The screw is alternately provided with a forward thread section and a reverse thread section. The two ends of the lower guide roller are respectively provided with a first sliding block and a second sliding block. The first sliding block is threadedly connected to the forward thread section or the reverse thread section, and the second sliding block is slidably connected to the slide rod.

[0012] In the aforementioned low-temperature dyeing apparatus for reactive dyes, an isolation plate is provided between the steam generator and the lower support frame. The isolation plate is provided with several ventilation holes and mounting holes, and a diffusion fan is provided in the mounting holes.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention involves winding the fabric to be dyed onto a first winding roller, then sequentially passing it over a rotating roller and a pressing roller onto a second winding roller. This allows the fabric to be immersed in the dye solution for dyeing. Both the first and second winding rollers rotate back and forth under the drive of a motor. The fabric drives the rotating roller to rotate, causing the stirring wheel to agitate the dye solution, improving the uniformity and rate of dye application. Furthermore, the rotating roller has through-holes on its surface, allowing the dye solution to penetrate the fabric from the inside, complementing the dye solution's effect on the outside and improving the dyeing efficiency of reactive dyes. The pressing roller allows reactive dye molecules to penetrate deeper into the fibers, further increasing the dyeing rate. An atomizer converts the dye solution into droplets, which are then sprayed back and forth on both sides of the fabric in small amounts via a spray plate, further treating unevenly dyed fibers and improving dyeing uniformity.

[0015] Therefore, this invention has the characteristics of improving the uniformity and dyeing rate of reactive dyes. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the rotating roller.

[0018] Figure 3 This is a schematic diagram of the spray plate structure.

[0019] Figure 4 This is a structural schematic diagram of the lower support frame.

[0020] The labels in the attached diagram are as follows: 1. Dyeing box; 2. Drive motor; 21. First winding roller; 22. Second winding roller; 23. Rotary roller; 231. Stirring wheel; 232. Through hole; 24. Pressing roller; 3. Spray plate; 31. Spray head; 32. Spray pipe; 33. Pump body; 34. Atomizer; 35. Drive rod; 36. Limiting rod; 37. Guide groove; 4. Steam box; 41. Steam generator; 42. Upper support frame; 421. Pushing cylinder; 422. Slide rail; 43. Lower support frame; 431. Screw; 432. Sliding rod; 433. Forward thread section; 434. Reverse thread section; 435. Adjusting motor; 44. Upper guide roller; 45. Lower guide roller; 451. First sliding block; 452. Second sliding block; 5. Isolation plate; 51. Vent hole; 52. Mounting hole; 53. Diffuser fan. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, a hinged connection, a rotating connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Example:

[0024] like Figures 1-4As shown, the low-temperature dyeing device for reactive dyes includes a dyeing chamber 1. Inside the dyeing chamber 1, there is a first winding roller 21 and a second winding roller 22 driven by a drive motor 2. Between the first winding roller 21 and the second winding roller 22, there are several rotating rollers 23 that are rotatably connected to the dyeing chamber 1 and located in the dye liquor. Between two adjacent rotating rollers 23, there is a pair of pressing rollers 24. Both ends of the rotating rollers 23 are equipped with stirring wheels 231. The surface of the rotating rollers 23 is uniformly provided with through holes 232. Between the rotating rollers 23 and the second winding roller 22, there are spray plates 3 located on both sides of the dyed fabric. The spray plates 3 are equipped with spray heads 31. The spray plates 3 are connected to the dye liquor through spray pipes 32. The spray pipes 32 are equipped with a pump body 33 and an atomizer 34.

[0025] The fabric to be dyed is wound around the first winding roller 21, and then sequentially passed over the rotating roller 23 and the pressing roller 24 onto the second winding roller 22, so that the fabric is immersed in the dye bath for dyeing. The first winding roller 21 and the second winding roller 22 rotate back and forth driven by the drive motor 2, causing the fabric to move back and forth in the dye bath for dyeing. While the fabric moves back and forth between the first winding roller 21 and the second winding roller 22, it drives the rotating roller 23 to rotate back and forth. The rotating roller 23 drives the stirring wheel 231 to rotate back and forth, stirring the dye bath and improving the dye uptake rate on the fabric. Furthermore, the surface of the rotating roller 23 is provided with through holes 232, which allows the dye liquor to immerse the fabric from the inside, in conjunction with the dye liquor immersion on the outside of the fabric, thereby improving the uniformity and efficiency of the dyeing of the reactive dye. The pressure roller 24 provides compression to the fabric, allowing the reactive dye molecules to penetrate deeper into the fiber, thus improving the dyeing rate. The atomizer 34 converts the dye liquor into droplets, and then the spray plate 3 applies micro-liquid back and forth to both sides of the fabric, further dyeing the unevenly dyed fibers in the fabric and improving the dyeing uniformity.

[0026] The blades of the two stirring wheels 231 on the same rotating roller 23 rotate in opposite directions. By rotating blades in opposite directions, the roller 23 stirs the dye liquor in two directions when it rotates, expanding the stirring range of the dye liquor and enhancing the turbulence of the dye liquor, thereby improving the uniformity of the dye liquor mixing and the dyeing effect.

[0027] The spray plate 3 has a drive rod 35 and a limiting rod 36 fixedly connected to both ends. The drive rod 35 is rotatably connected to the dyeing box 1, and the limiting rod 36 is slidably connected to the dyeing box 1. The dyeing box 1 is equipped with a micro motor that drives the drive rod 35 to rotate, and the inner wall of the dyeing box 1 is equipped with a guide groove 37 for the limiting rod 36 to slide. The micro motor drives the spray plate 3 to swing around the drive rod 35, thereby expanding the spray range on the fabric, adjusting the impact force of the atomized dye on the fabric, and improving the spray dyeing effect.

[0028] The dyeing box 1 is equipped with a steaming box 4 on its outer side. Inside the steaming box 4 is a steam generator 41. Above the steam generator 41 are an upper support frame 42 and a lower support frame 43, which are vertically distributed. The upper support frame 42 is vertically connected along the height of the steaming box 4. Several upper guide rollers 44 are mounted on the upper support frame 42, and several lower guide rollers 45 are horizontally staggered with the upper guide rollers 44 on the lower support frame 43. The lower guide rollers 45 are horizontally connected to the lower support frame 43. The fabric dyed in the dyeing box 1 is introduced into the steaming box 4 and treated for a period of time under certain temperature, pressure, and humidity conditions for color fixing. The dyed fabric is continuously pulled by the upper guide roller 44 and lower guide roller 45, which are staggered in the steaming box 4, thereby extending the steaming path of the dyed fabric in the steaming box 4 and improving the color fixing effect. The upper guide roller 44 can move up and down under the drive of the upper support frame 42, and the lower guide roller 45 can move left and right on the lower support frame 43, thereby adjusting the distance between the upper guide roller 44 and the lower guide roller 45, and thus adjusting the movement path and tension of the dyed fabric, improving the fiber expansion in the fabric, which is conducive to dye diffusion and fixation, and is suitable for dyeing and fixing fabrics of different fiber types.

[0029] The top of the steam box 4 is equipped with a push cylinder 421, and the piston rod of the push cylinder 421 is connected to the upper support frame 42. The side of the steam box 4 is equipped with a slide rail 422, and both ends of the upper support frame 42 are slidably connected to the slide rail 422. By pushing the push cylinder 421, the upper support frame 42 is driven to move up and down along the slide rail 422, thereby driving the upper guide roller 44 on the upper support frame 42 to move up and down.

[0030] The lower support frame 43 includes parallel screws 431 and slide bars 432. The screws 431 are connected to the adjusting motor 435. The screws 431 are alternately provided with forward threaded sections 433 and reverse threaded sections 434. The two ends of the lower guide rollers 45 are respectively provided with a first sliding block 451 and a second sliding block 452. The first sliding block 451 is threadedly connected to either the forward threaded section 433 or the reverse threaded section 434. The second sliding block 452 is sleeved on the slide bar 432 and slidably connected to the slide bar 432. Multiple lower guide rollers 45 are connected to threaded sections with different thread directions. By adjusting the motor 435 to drive the screws 431 to rotate, the lower guide rollers 45 connected to different threaded sections move in different directions, thereby changing the spacing between adjacent lower guide rollers 45 and adjusting the traction path and tension of the dyed fabric.

[0031] An isolation plate 5 is provided between the steam generator 41 and the lower support frame 43. The isolation plate 5 has several vent holes 51 and mounting holes 52, and a diffusion fan 53 is installed in the mounting holes 52. Steam is introduced into the dyed fabric through the vent holes 51, increasing the internal porosity of the fibers and facilitating the diffusion and penetration of dyes. The diffusion fan 53 quickly and evenly distributes the steam throughout the steam chamber 4, allowing the fibers to quickly absorb moisture and expand evenly, thereby improving the uniformity and efficiency of dyeing and color fixing.

[0032] The parts of this utility model not described in detail are existing technologies and therefore will not be specifically described here.

Claims

1. A low-temperature dyeing apparatus for reactive dyes, characterized in that: The dyeing box (1) includes a first winding roller (21) and a second winding roller (22) driven by a drive motor (2). Between the first winding roller (21) and the second winding roller (22), there are several rotating rollers (23) located in the dye liquor. Between two adjacent rotating rollers (23), there is a pair of pressing rollers (24). Both ends of the rotating rollers (23) are equipped with stirring wheels (231). The surface of the rotating rollers (23) is uniformly provided with through holes (232). Between the rotating rollers (23) and the second winding roller (22), there are spray plates (3) located on both sides of the dyed fabric. The spray plates (3) are equipped with spray heads (31). The spray plates (3) are connected to the dye liquor through spray pipes (32). The spray pipes (32) are equipped with pump bodies (33) and atomizers (34).

2. The low-temperature dyeing apparatus for reactive dyes according to claim 1, characterized in that: The blades of the two stirring wheels (231) of the same rotating roller (23) rotate in opposite directions.

3. The low-temperature dyeing apparatus for reactive dyes according to claim 1, characterized in that: The spray plate (3) is provided with a drive rod (35) and a limiting rod (36) at both ends. The drive rod (35) is rotatably connected to the dyeing box (1), and the limiting rod (36) is slidably connected to the dyeing box (1). The dyeing box (1) is provided with a micro motor that drives the drive rod (35) to rotate. The inner wall of the dyeing box (1) is provided with a guide groove (37) for the limiting rod (36) to slide.

4. The low-temperature dyeing apparatus for reactive dyes according to claim 1, characterized in that: The dyeing box (1) is provided with a steam box (4) on the outside. The steam box (4) is provided with a steam generator (41) inside. Above the steam generator (41) are an upper support frame (42) and a lower support frame (43) distributed vertically. The upper support frame (42) is connected vertically along the height of the steam box (4). The upper support frame (42) is provided with several upper guide rollers (44). The lower support frame (43) is provided with several lower guide rollers (45) that are distributed horizontally and vertically with the upper guide rollers (44). The lower guide rollers (45) are connected horizontally and vertically on the lower support frame (43).

5. The low-temperature dyeing apparatus for reactive dyes according to claim 4, characterized in that: The top of the steam box (4) is provided with a push cylinder (421), and the piston rod of the push cylinder (421) is connected to the upper support frame (42); the side of the steam box (4) is provided with a slide rail (422), and the two ends of the upper support frame (42) are slidably connected to the slide rail (422).

6. The low-temperature dyeing apparatus for reactive dyes according to claim 4, characterized in that: The lower support frame (43) includes a screw (431) and a slide rod (432) distributed in parallel. The screw (431) is connected to an adjusting motor (435). The screw (431) is alternately provided with a forward thread section (433) and a reverse thread section (434). The two ends of the lower guide roller (45) are respectively provided with a first sliding block (451) and a second sliding block (452). The first sliding block (451) is threadedly connected to the forward thread section (433) or the reverse thread section (434), and the second sliding block (452) is slidably connected to the slide rod (432).

7. The low-temperature dyeing apparatus for reactive dyes according to claim 4, characterized in that: An isolation plate (5) is provided between the steam generator (41) and the lower support frame (43). The isolation plate (5) is provided with several ventilation holes (51) and mounting holes (52). A diffusion fan (53) is provided in the mounting hole (52).

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