Printing and dyeing equipment for polyester fabric
By installing a bent pipe and a stirring mechanism in the dyeing tank, and utilizing gas agitation and stirring shaft, the problem of uneven dyeing solution in the upper and lower parts of polyester fabric was solved, achieving rapid and uniform mixing of the dyeing solution and improving the dyeing effect.
Patent Information
- Application Number
- CN202520592431.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-28
AI Technical Summary
During the dyeing process of polyester fabric, there is a significant difference in the colorant content between the dyeing solution at the top and bottom of the polyester fabric, resulting in uneven dyeing.
A bent tube is installed in the dyeing tank. The bent tube has multiple longitudinal sections and transverse ends. A branch pipe is fixedly installed on each longitudinal section. Air holes are opened on the branch pipe. Air is delivered by an air pump to agitate the dyeing solution. Combined with the stirring of the stirring shaft and stirring rod, the dyeing solution is rapidly exchanged and evenly mixed.
It improves the uniformity of the dyeing solution and enhances the dyeing quality of polyester fabrics.
Smart Images

Figure CN223936822U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of printing and dyeing equipment technology, specifically to a printing and dyeing equipment for polyester fabric. Background Technology
[0002] Polyester fabric, also known as polyester material, is a very common type of synthetic fiber clothing fabric used in daily life.
[0003] In the processing of polyester fabric, printing and dyeing is a very important step. During the dyeing process, the polyester fabric is introduced into the dyeing tank through multiple guide rollers. After a long printing and dyeing time, the dye will gradually settle to the bottom. In order to ensure the uniform distribution of the dye, only the stirring mechanism is used to improve the uniformity of the dye mixing. However, the polyester fabric divides the dyeing liquid into two parts, resulting in a large difference in the content of dye in the two parts. Therefore, in order to solve the above technical problems, this utility model provides a printing and dyeing equipment for polyester fabric. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a dyeing and printing device for polyester fabric, enabling rapid exchange and mixing of dyeing solutions on the top and bottom of the polyester fabric.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a dyeing and printing equipment for polyester fabric, comprising a dyeing tank, wherein a first guide roller and a third guide roller are rotatably mounted at the top of the dyeing tank, the first guide roller and the third guide roller are respectively located at both ends in the length direction of the dyeing tank, and a plurality of second guide rollers and a plurality of fourth guide rollers are rotatably mounted inside the dyeing tank, wherein the second guide rollers and the fourth guide rollers are alternately distributed, and the second guide rollers are positioned above the fourth guide rollers;
[0006] A bent tube is fixedly installed inside the dyeing pool. The bent tube has multiple longitudinal sections and a transverse end. There is a longitudinal section between the second guide roller and the fourth guide roller. Multiple branch pipes are fixedly installed on each longitudinal section. Multiple air holes are opened on each branch pipe. The openings of the multiple air holes face the width direction of the dyeing pool, and the openings of the air holes on the branch pipes of two adjacent longitudinal sections face opposite directions. An air supply component is fixedly installed on the dyeing pool. The air supply component is fixedly connected to one end of the bent tube.
[0007] Preferably, the air supply component is an air pump, and the air outlet of the air pump is fixedly connected to the bent pipe.
[0008] Preferably, among the multiple air holes opened on the same branch pipe, some air holes face obliquely upward, some air holes face obliquely downward, and some air holes face horizontally.
[0009] Preferably, a plurality of stirring shafts are rotatably mounted on the inner bottom of the dyeing tank, a plurality of stirring rods are fixedly mounted on the outer surface of the stirring shafts, a motor is fixedly mounted on the outer surface of the dyeing tank, the output end of the motor is fixedly connected to one end of the stirring shafts, and a transmission assembly is provided between the plurality of stirring shafts.
[0010] Preferably, the transmission assembly includes multiple transmission belts, with one transmission belt disposed between two adjacent stirring shafts, and the two ends of the transmission belt in the length direction respectively sleeved on the two stirring shafts.
[0011] Beneficial effects
[0012] Compared with the prior art, this utility model provides a printing and dyeing equipment for polyester fabric, which has the following features:
[0013] Beneficial effects:
[0014] A bent pipe is fixedly installed inside the dyeing tank. The bent pipe has multiple longitudinal sections and transverse ends. Multiple branch pipes are fixedly installed on each longitudinal section. Multiple air holes are opened on each branch pipe. The openings of the multiple air holes face the width direction of the dyeing tank, and the openings of the air holes on the branch pipes of two adjacent longitudinal sections face opposite directions. The air holes on two adjacent longitudinal sections can allow the dyeing liquid to move to both sides in the width direction of the dyeing tank. After the dyeing liquid collides with the side wall of the dyeing tank, it will flow along the length direction of the dyeing tank. In this way, the dyeing liquid above and below the polyester fabric can be quickly exchanged and mixed, so that the colorant in the dyeing liquid is more evenly dispersed, which is beneficial to improving the dyeing quality of polyester fabric.
[0015] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description
[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the bent pipe, branch pipe and air pump in this utility model;
[0020] Figure 4 This is a schematic diagram of the structure of the stirring shaft, stirring rod, motor, and transmission belt in this utility model.
[0021] In the diagram: 1. Dyeing tank; 2. First guide roller; 3. Second guide roller; 4. Third guide roller; 5. Fourth guide roller; 6. Longitudinal section; 7. Transverse end; 8. Air pump; 9. Branch pipe; 10. Air hole; 11. Stirring shaft; 12. Stirring rod; 13. Motor; 14. Transmission belt. Detailed Implementation
[0022] The following is in conjunction with the appendix Figures 1 to 4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.
[0023] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0025] Please combine Figures 1 to 4As shown, this utility model provides a dyeing and printing equipment for polyester fabric. The dyeing and printing equipment includes a dyeing tank 1. A first guide roller 2 and a third guide roller 4 are rotatably installed at the top of the dyeing tank 1. The first guide roller 2 and the third guide roller 4 are respectively located at both ends of the dyeing tank 1 along its length. A plurality of second guide rollers 3 and a plurality of fourth guide rollers 5 are rotatably installed inside the dyeing tank 1. The plurality of second guide rollers 3 and the plurality of fourth guide rollers 5 are evenly spaced along the length of the dyeing tank 1, and the second guide rollers 3 and the fourth guide rollers 5 are alternately distributed. The second guide rollers 3 are positioned above the fourth guide rollers 5. After the polyester fabric passes over the first guide roller 2, it passes over the fourth guide roller 5 and the second guide roller 3. After passing over the plurality of fourth guide rollers 5 and the second guide roller 3, it passes over the third guide roller 4 and is discharged. During the process of passing over the plurality of fourth guide rollers 5 and the plurality of second guide rollers 3 in sequence, the polyester fabric is immersed in the dyeing liquid inside the dyeing tank 1 for dyeing.
[0026] A bent pipe is fixedly installed inside the dyeing tank 1. The bent pipe has multiple longitudinal sections 6 and transverse ends 7. There is a longitudinal section 6 between the second guide roller 3 and the fourth guide roller 5. Multiple branch pipes 9 are fixedly installed on each longitudinal section 6. Multiple air holes 10 are opened on each branch pipe 9. The openings of the multiple air holes 10 face the width direction of the dyeing tank 1. The openings of the air holes 10 on the branch pipes 9 of two adjacent longitudinal sections 6 face opposite directions. Furthermore, the openings of the air holes 10 on the branch pipes 9 of the same longitudinal section 6 face one end in the width direction of the dyeing tank 1, and the openings of the air holes 10 on the branch pipes 9 of the adjacent longitudinal section 6 face the other end in the width direction of the dyeing tank 1. An air pump 8 is fixedly installed on the dyeing tank 1. The air outlet of the air pump 8 is fixedly connected to the bent pipe.
[0027] Gas is pumped into the bend pipe by the air pump 8 and finally discharged through the air holes 10 on the multiple branch pipes 9. Since the multiple branch pipes 9 are all located in the dyeing solution, the gas entering the dyeing solution can cause the dyeing solution to tumble. One of the two adjacent longitudinal sections 6 is located above the polyester fabric, and the other longitudinal section 6 is located below the polyester fabric. The air holes 10 on the same longitudinal section 6 open in the same direction, which can make the dyeing solution move to the same side of the dyeing pool 1. The air holes 10 on the adjacent longitudinal section 6 open in opposite directions, which can make the dyeing solution move to the other side of the dyeing pool 1. After the dyeing solution collides with the side wall of the dyeing pool 1, it will flow along the length of the dyeing pool 1. In this way, the dyeing solution above and below the polyester fabric can be quickly exchanged and mixed, making the colorant in the dyeing solution more evenly dispersed, which is beneficial to improving the dyeing quality of the polyester fabric.
[0028] Among the multiple pores 10 opened on the same branch tube 9, some pores 10 open at an angle upward, some pores 10 open at an angle downward, and some pores 10 are horizontal, which can turn the staining solution over a larger area.
[0029] To further improve the uniformity of pigment dispersion in the dyeing solution, multiple stirring shafts 11 are rotatably installed at the bottom of the dyeing tank 1. Multiple stirring rods 12 are fixedly installed on the outer surface of the stirring shafts 11. A motor 13 is fixedly installed on the outer surface of the dyeing tank 1. The output end of the motor 13 is fixedly connected to one end of the stirring shaft 11. A transmission assembly is provided between the multiple stirring shafts 11. The transmission assembly includes multiple transmission belts 14. A transmission belt 14 is provided between two adjacent stirring shafts 11. The two ends of the transmission belt 14 in the length direction are respectively sleeved on the two stirring shafts 11. Driving the multiple stirring shafts 11 to rotate can agitate the dyeing solution and further improve the uniformity of pigment dispersion.
[0030] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A dyeing and printing apparatus for polyester fabric, comprising a dyeing tank (1), wherein a first guide roller (2) and a third guide roller (4) are rotatably mounted at the top end of the dyeing tank (1), the first guide roller (2) and the third guide roller (4) being located at opposite ends of the dyeing tank (1) along its length, characterized in that: The dyeing pool (1) is rotatably equipped with a plurality of second guide rollers (3) and a plurality of fourth guide rollers (5), the second guide rollers (3) and the fourth guide rollers (5) are alternately distributed, and the second guide rollers (3) are positioned above the fourth guide rollers (5); A bent pipe is fixedly installed inside the dyeing pool (1). The bent pipe has multiple longitudinal sections (6) and a transverse end (7). There is a longitudinal section (6) between the second guide roller (3) and the fourth guide roller (5). Multiple branch pipes (9) are fixedly installed on each longitudinal section (6). Multiple air holes (10) are opened on each branch pipe (9). The openings of the multiple air holes (10) face the width direction of the dyeing pool (1), and the openings of the air holes (10) on the branch pipes (9) of two adjacent longitudinal sections (6) face opposite directions. An air supply component is fixedly installed on the dyeing pool (1). The air supply component is fixedly connected to one end of the bent pipe.
2. The dyeing and printing equipment for polyester fabric according to claim 1, characterized in that: The air supply component is an air pump (8), and the air outlet of the air pump (8) is fixedly connected to the bent pipe.
3. The dyeing and printing equipment for polyester fabric according to claim 1, characterized in that: Among the multiple air holes (10) opened on the same branch pipe (9), some air holes (10) are oriented diagonally upward, some air holes (10) are oriented diagonally downward, and some air holes (10) are oriented horizontally.
4. The dyeing and printing equipment for polyester fabric according to claim 1, characterized in that: Multiple stirring shafts (11) are rotatably installed at the bottom of the dyeing tank (1). Multiple stirring rods (12) are fixedly installed on the outer surface of the stirring shafts (11). A motor (13) is fixedly installed on the outer surface of the dyeing tank (1). The output end of the motor (13) is fixedly connected to one end of the stirring shaft (11). A transmission assembly is provided between the multiple stirring shafts (11).
5. The dyeing and printing equipment for polyester fabric according to claim 4, characterized in that: The transmission assembly includes multiple transmission belts (14), with one transmission belt (14) disposed between two adjacent stirring shafts (11), and the two ends of the transmission belt (14) in the length direction respectively sleeved on the two stirring shafts (11).