Dyeing device for polyester-cotton short process
By designing a short-process dyeing device for polyester-cotton, and using atomizing nozzles and multiple bypass methods, the problems of dyeing uniformity and low dye utilization in traditional polyester-cotton dyeing have been solved, achieving a highly efficient and environmentally friendly dyeing process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN KANGYUAN PRINTING & DYEING CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-06-05
AI Technical Summary
Traditional polyester-cotton dyeing methods suffer from problems such as poor dyeing uniformity, low dye utilization, complex operation, and low production efficiency, which affect product quality and cause environmental pollution.
Design a short-process dyeing device for polyester and cotton, including a spray dyeing device and a feed roller. The device uses an atomizing nozzle to uniformly spray the dye, and ensures dye uniformity and efficiency through multiple passes and recycling of the collection tank.
It improves dyeing uniformity and efficiency, enables dye recycling, and reduces production costs and environmental pollution.
Smart Images

Figure CN224325543U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dyeing technology, and in particular to a short-process dyeing device for polyester and cotton. Background Technology
[0002] The dyeing process of polyester-cotton involves multiple steps, with the dyeing stage being particularly crucial. Traditional polyester-cotton dyeing methods mainly include immersion dyeing and roll dyeing. Immersion dyeing involves soaking the fabric in a dye solution for a period of time, allowing the dye to penetrate into the fibers. This method is suitable for small-batch production, but it results in poor dyeing uniformity and low dye utilization. Roll dyeing involves winding the fabric onto a dyeing roller and dyeing it by repeatedly immersing and withdrawing it from the dye solution. Compared to immersion dyeing, this method improves dyeing uniformity, but it is more complex to operate. While these traditional dyeing methods meet the dyeing requirements of polyester-cotton fabrics to some extent, they also have many problems, such as poor dyeing uniformity, low dye utilization, complex operation, and low production efficiency. These problems not only affect product quality and production costs but also cause some environmental pollution. Utility Model Content
[0003] To overcome the shortcomings of the existing technology, this invention provides a short-process dyeing device for polyester and cotton, which can ensure the uniformity of dyeing, realize the recycling of dye, and reduce dye waste.
[0004] The technical solution adopted by this utility model to solve its technical problem is: a short-process dyeing device for polyester and cotton, including a box body. The top of the box body is sequentially arranged with a feeding roller, a conveying plate, a dyeing spraying device, and a conveying roller according to the feeding sequence. The feeding roller and the conveying roller are arranged on both sides of the conveying plate. The dyeing spraying device is mounted on the box body via a support plate. Multiple atomizing nozzles are connected to the dyeing spraying device and are positioned above the conveying plate. The conveying plate has several leakage holes. The conveying rollers are also arranged inside the box body. An outlet is also provided on one side of the box body. A pressing device is also provided inside the box body at the outlet position. The pressing device includes two fixed plates on both sides. Fixed rollers and pressure rollers are mounted on the fixed plates. The fixed rollers are fixedly mounted on the fixed plates. A pair of connecting bushings are respectively provided at both ends of the pressure rollers. Vertical guide grooves are provided on the fixed plates, and inclined guide grooves are provided on the inner wall of the housing. The connecting bushings are respectively located in the vertical guide grooves and the inclined guide grooves. A synchronous plate is also located between the fixed plates. A lead screw is connected to the middle of the synchronous plate. One end of the lead screw protrudes from the housing and is equipped with a rotating handwheel. A bolt cooperating with the lead screw is provided on the side of the housing at the point where the lead screw protrudes.
[0005] Preferably, the bottom of the box is also provided with a funnel-shaped liquid collection tank, the top of the liquid collection tank is provided with a filter screen, the bottom of the liquid collection tank is provided with a leakage hole, the leakage hole is connected to a liquid storage device, the liquid storage device is located on the outside of the bottom of the box, the liquid storage device is provided with a water pump, the water pump is also provided with a water pipe, and the other end of the water pipe is connected to the dyeing device.
[0006] Preferably, the material conveying rollers inside the box are arranged in two rows inside the box.
[0007] The beneficial effects of this invention are: by optimizing the design of the dyeing device and the feed roller, the dye can be evenly sprayed onto the fabric surface, and by multiple passes and dye recycling, the dyeing uniformity and efficiency are significantly improved; the combined use of the collection tank and the storage device realizes the recycling of dye, reduces dye waste, and lowers production costs. Attached Figure Description
[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0009] Figure 1 This is a front view structural diagram of the present invention;
[0010] Figure 2 This is a side view of the structural cross-section of this utility model;
[0011] Figure 3 This is a side view of the sectional structure of the pressing device;
[0012] Figure 4 This is a front structural sectional view of the pressing device;
[0013] Figure 5 This is a schematic diagram of the feed plate structure.
[0014] In the diagram, 1. Box body; 2. Feed roller; 3. Feed plate; 31. Drain hole; 4. Spraying device; 41. Support plate; 42. Atomizing nozzle; 5. Feed roller; 6. Discharge port; 7. Pressing device; 71. Fixing plate; 72. Fixing roller; 73. Pressure roller; 74. Connecting bushing; 75. Vertical guide groove; 76. Inclined guide groove; 77. Synchronizing plate; 78. Lead screw; 79. Rotary hand; 710. Bolt; 8. Liquid collection tank; 81. Filter screen; 82. Drain hole; 9. Liquid storage device; 10. Water pump; 11. Water pipe; 12. Guide rail. Detailed Implementation
[0015] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.
[0016] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0017] according to Figures 1-5 As shown, a short-process polyester-cotton dyeing device includes a housing 1. The top of the housing 1 is sequentially arranged with a feed roller 2, a conveying plate 3, a dyeing spray device 4, and a conveying roller 5 according to the feeding sequence. The feed roller 2 and conveying roller 5 are located on opposite sides of the conveying plate 3. The dyeing spray device 4 is mounted on the housing 1 via a support plate 41 and has multiple atomizing nozzles 42 connected to it. The atomizing nozzles 42 are positioned above the conveying plate 3, which has several leakage holes 31. The conveying rollers 5 are also arranged inside the housing 1. A discharge port 6 is located on one side of the housing 1. A pressing device 7 is located inside the housing 1 at the discharge port 6. The pressing device 7 includes two side fixing plates 71. A guide rail 12 is also provided on the housing 1. The fixing plates 71 are mounted on the inside of the housing 1 via the guide rail 12. A fixing roller 72 and a pressure roller 73 are mounted on the fixing plates 71. The fixed roller 72 and pressure roller 73 are made of soft material, such as rubber. The fixed roller 72 is fixedly mounted on the fixed plate 71. The two ends of the pressure roller 73 are respectively provided with a pair of connecting bushings 74. The fixed plate 71 is provided with a vertically arranged vertical guide groove 75. The inner wall of the housing 1 is provided with an inclined guide groove 76. The connecting bushings 74 are respectively arranged in the vertical guide groove 75 and the inclined guide groove 76. There is also a synchronization plate 77 between the fixed plates 71. A lead screw 78 is connected to the middle of the synchronization plate 77. One end of the lead screw 78 extends out of the housing 1 and is provided with a rotating handwheel 79. A bolt 710 is provided on the side of the housing 1 at the position where the lead screw 78 extends, which cooperates with the lead screw 78. The lead screw 78 is connected to the synchronization plate 77 and is provided as a round rod at one end of the housing 1. The part that cooperates with the bolt 710 is a threaded lead screw.
[0018] The bottom of the box body 1 is also provided with a funnel-shaped liquid collection tank 8. The top of the liquid collection tank 8 is provided with a filter screen 81, and the bottom of the liquid collection tank 8 is provided with a leakage hole 82. The leakage hole 82 is connected to a liquid storage device 9. The liquid storage device 9 is located on the outside of the bottom of the box body 1. The liquid storage device 9 is provided with a water pump 10. The water pump 10 is also provided with a water pipe 11. The other end of the water pipe 11 is connected to the dyeing spraying device 4. The dyeing spraying device 4 is provided with a structure for storing dye.
[0019] The material conveying rollers 5 inside the housing 1 are arranged in two rows inside the housing 1.
[0020] In practical operation, the fabric first enters the device through the feed roller 2, and then passes through the feed plate 3. During this process, the dyeing device 4 sprays dye evenly onto the fabric through the atomizing nozzle 42. Then, the fabric passes around the feed roller 5 at the top of the box 1 and enters the inside of the box 1. Inside the box 1, the fabric passes through the feed roller 5 multiple times and finally passes through the pressing device 7, leaving the box 1 from the discharge port 6, thus completing the dyeing process.
[0021] During the spraying stage, the atomizing nozzle 42 can evenly spray the dye onto the fabric surface. Excess dye will naturally seep out, fall onto the feed plate 3, and flow into the box 1 through the drain hole 31. The fabric moves back and forth in the box 1 through the feed roller 5, so that the dye that falls into the box 1 will re-adhere to the fabric, ensuring that the fabric is fully and evenly dyed. Finally, the dye will fall into the collection tank 8 at the bottom and enter the storage device 9 through the drain hole 82 to be collected. The filter screen 81 effectively filters out impurities carried in the dye, ensuring the purity of the dye. The collected dye is transported back to the spraying device 4 by the water pump 10 for recycling, avoiding dye waste.
[0022] When the fabric reaches the pressing device 7, the device can effectively squeeze out excess dye from the fabric, preventing excessive dye on the fabric surface and facilitating the smooth progress of subsequent processing. By rotating the handwheel 79, the fixed plate 71 can be moved along the guide rail 11. The movement of the fixed plate 71 drives the pressure roller 73 to slide in the inclined guide groove 76, thereby controlling the distance between the pressure roller 73 and the fixed roller 72, adjusting the squeezing force of the pressing device 7, and ensuring that the pressing effect meets the process requirements.
[0023] This design is ingenious. By optimizing the design of the spraying device and the feed roller, it ensures that the dye can be sprayed evenly on the fabric surface. Through multiple passes and dye recycling, the dyeing uniformity and efficiency are significantly improved. The combined use of the collection tank and the storage device enables the recycling of dye, reduces dye waste, and lowers production costs.
[0024] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.
Claims
1. A short-process dyeing apparatus for polyester and cotton, characterized in that: The device includes a housing (1). The top of the housing (1) is sequentially equipped with a feeding roller (2), a conveying plate (3), a dyeing device (4), and a conveying roller (5) according to the feeding sequence. The feeding roller (2) and the conveying roller (5) are located on both sides of the conveying plate (3). The dyeing device (4) is mounted on the housing (1) via a support plate (41). Multiple atomizing nozzles (42) are connected to the dyeing device (4). The atomizing nozzles (42) are located above the conveying plate (3). The conveying plate (3) has several leakage holes (31). The conveying rollers (5) are also arranged inside the housing (1). A discharge port (6) is located on one side of the housing (1). A pressing device (7) is located inside the housing (1) at the discharge port (6). The pressing device (7) includes two fixing plates (71) on both sides. 1) A fixed roller (72) and a pressure roller (73) are provided on the upper part. The fixed roller (72) is fixedly mounted on the fixed plate (71). A pair of connecting bushings (74) are provided at both ends of the pressure roller (73). A vertical guide groove (75) is provided on the fixed plate (71). An inclined guide groove (76) is provided on the inner wall of the box (1). The connecting bushings (74) are respectively located in the vertical guide groove (75) and the inclined guide groove (76). There is also a synchronous plate (77) between the fixed plates (71). A lead screw (78) is connected in the middle of the synchronous plate (77). One end of the lead screw (78) extends out of the box (1) and a rotating handwheel (79) is provided. A bolt (710) that cooperates with the lead screw (78) is provided on the side of the box (1) at the position where the lead screw (78) extends out.
2. The polyester-cotton short-process dyeing apparatus according to claim 1, characterized in that: The bottom of the box (1) is also provided with a funnel-shaped liquid collection tank (8), the top of the liquid collection tank (8) is provided with a filter screen (81), the bottom of the liquid collection tank (8) is provided with a leakage hole (82), the leakage hole (82) is connected to a liquid storage device (9), the liquid storage device (9) is located on the outside of the bottom of the box (1), the liquid storage device (9) is provided with a water pump (10), the water pump (10) is also provided with a water pipe (11), the other end of the water pipe (11) is connected to the dyeing device (4).
3. The polyester-cotton short-process dyeing apparatus according to claim 1, characterized in that: The material conveying rollers (5) inside the box (1) are arranged in two rows inside the box (1).