High-color-fastness polyester knitted fabric dyeing device

Abstract

The utility model discloses a high-color-fastness polyester knitted fabric dyeing device, which relates to the technical field of fabric processing, and comprises a dyeing jar, a discharge port is arranged at one end of the top of the dyeing jar, a cleaning component is arranged above the discharge port, the cleaning component comprises a frame, sliding rods are equidistantly arranged on two sides of the frame, one end of each sliding rod is fixedly connected with a connecting frame, and the other end of each sliding rod is fixedly connected with the connecting frame. Adsorption cotton is rotatably installed at the top ends of the connecting frames, the connecting frames connected with sliding rods on the two sides of the frame are symmetrical, the sliding rods slidably penetrate through the frame, limiting plates are fixedly arranged at the other ends of the sliding rods, first springs are installed on the inner sides of the limiting plates, and the limiting plates are connected with the frame through the first springs. The adsorption cotton in the removing assembly can be in direct contact with the surface of the fabric moved out of the discharge port of the dyeing vat, a large amount of residual dyeing agent on the surface of the fabric is adsorbed to the adsorption cotton in a physical adsorption mode, the redundant dyeing agent can be conveniently removed, and the difficulty of follow-up treatment is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of fabric processing technology, specifically to a dyeing device for high color fastness polyester knitted fabrics. Background Technology

[0002] Polyester fabric is a widely used synthetic fiber clothing material in daily life. Its biggest advantages are its excellent wrinkle resistance and shape retention, making it suitable for outerwear, various bags, tents, and other outdoor products. Polyester has a wide range of uses, being extensively used in the manufacture of clothing and industrial products. Flame-retardant polyester, due to its permanent flame-retardant properties, has a wide range of applications. Besides playing an irreplaceable role in industrial textiles, interior architectural decoration, and vehicle interior decoration, it also plays a significant role in the field of protective clothing.

[0003] Chinese utility model patent application number 202122227200.9 provides a low-consumption dyeing device for high color fastness polyester knitted fabric. By installing a base on the top of the dyeing tank and connecting it to an electrode rod, the dyeing tank is subjected to electrophoresis, which accelerates the dyeing efficiency and saves energy. A water pump is installed on the side of the dyeing tank and connected to a spray nozzle to spray the fabric for dyeing, ensuring the dyeing effect of the fabric.

[0004] However, during the use of the above equipment, it was found that the fabric was first spray-dyed during the dyeing process, and then dyed again in the dyeing tank using dyeing agent. The surface of the fabric removed from the dyeing tank was prone to having a lot of dye residue. Excessive dye residue would significantly increase the amount of dye that needs to be removed during washing, requiring increased detergent dosage, extended washing time, or the use of more complex washing processes to achieve the desired washing effect. At the same time, it would increase the color and pollutant concentration of the washing wastewater, increasing the difficulty and cost of wastewater treatment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a dyeing device for high color fastness polyester knitted fabrics, which solves the problem mentioned in the background technology that the surface of the fabric removed from the dyeing vat is easily left with a lot of dye residue. Excessive dye residue will greatly increase the amount of dye that needs to be removed during washing, requiring increased detergent dosage, extended washing time, or the use of more complex washing processes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a dyeing device for high color fastness polyester knitted fabric, comprising a dyeing cylinder, rollers at both ends of the top of the dyeing cylinder, an electrophoresis structure in the middle of the dyeing cylinder, a water pump on one side of the dyeing cylinder, a U-shaped tube inserted into the top of the water pump, a conduit fixedly connected to the bottom of the water pump, a discharge port at one end of the top of the dyeing cylinder, a cleaning component above the discharge port, the cleaning component comprising a frame, slide rods equidistantly arranged on both sides of the frame, a connecting frame fixedly connected to one end of each slide rod, an absorbent cotton rotatably mounted on the top of the connecting frame, the connecting frames connected to the slide rods on both sides of the frame being symmetrical to each other, the slide rods sliding through the frame, a limiting plate fixedly arranged at the other end of each slide rod, a spring installed on the inner side of the limiting plate, and the limiting plate being connected to the frame via the spring.

[0007] Preferably, connecting plates are fixedly installed on both ends of the discharge port, and the connecting plates are connected to the frame by bolts.

[0008] Preferably, the cross-section of the discharge port is an isosceles trapezoid with a longer upper base and a shorter lower base, and the width of the frame is the same as the top width of the discharge port.

[0009] Preferably, a fixing plate is fixedly provided in the middle of the connecting frame, the fixing plate is inclined, and the absorbent cotton is placed above the fixing plate.

[0010] Preferably, a second spring is installed at the bottom of the fixing plate, and the fixing plate is connected to the scraper through the second spring. The scraper is rotatably installed in the connecting frame.

[0011] This invention provides a dyeing device for high color fastness polyester knitted fabrics. It has the following beneficial effects:

[0012] (1) The present invention can directly contact the fabric surface removed from the dyeing cylinder outlet by removing the absorbent cotton in the cleaning component. Through physical adsorption, a large amount of residual dye on the fabric surface is adsorbed onto the absorbent cotton, which facilitates the removal of excess dye and effectively reduces the difficulty of subsequent processing.

[0013] (2) This utility model uses a scraper to pre-treat the dye liquid on the fabric, scraping off most of the dye first, so as to avoid the cotton from absorbing too much dye.

[0014] This solves the problem that fabric surfaces removed from the dyeing vat often have a lot of dye residue, which would significantly increase the amount of dye that needs to be removed during washing, requiring increased detergent dosage, extended washing time, or more complex washing processes. Attached Figure Description

[0015] Figure 1 This is a diagram showing the overall structure of the present utility model;

[0016] Figure 2 This utility model Figure 1 A diagram showing the top structure of the dyeing vat;

[0017] Figure 3 This utility model Figure 1 The structure diagram of the clearing component is shown below;

[0018] Figure 4 This utility model Figure 3 Structural diagram of the connecting frame.

[0019] In the diagram, 1. Dyeing vat; 11. Discharge port; 12. Connecting plate; 2. Roller; 3. Water pump; 31. Conduit; 32. U-shaped tube; 4. Electrophoresis mechanism; 5. Cleaning assembly; 51. Frame; 52. Absorbent cotton; 53. Connecting frame; 531. Scraper; 532. Fixing plate; 533. Spring 2; 54. Slide rod; 55. Spring 1; 56. Limiting plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] Please see Figures 1-4 A dyeing device for high color fastness polyester knitted fabric includes a dyeing cylinder 1, with rollers 2 at both ends of the top of the dyeing cylinder 1, an electrophoresis mechanism 4 in the middle of the dyeing cylinder 1, a water pump 3 on one side of the dyeing cylinder 1, a U-shaped tube 32 inserted into the top of the water pump 3, a conduit 31 fixedly connected to the bottom of the water pump 3, a discharge port 11 at one end of the top of the dyeing cylinder 1, a cleaning component 5 above the discharge port 11, a frame 51 in the cleaning component 5, slide rods 54 equidistantly arranged on both sides of the frame 51, a connecting frame 53 fixedly connected to one end of the slide rod 54, an absorbent cotton 52 rotatably installed at the top of the connecting frame 53, the connecting frames 53 connected to the slide rods 54 on both sides of the frame 51 are symmetrical, the slide rods 54 slide through the frame 51, a limit plate 56 fixedly arranged at the other end of the slide rod 54, a spring 55 installed on the inner side of the limit plate 56, and the limit plate 56 connected to the frame 51 through the spring 55;

[0023] Connecting plates 12 are fixedly installed on both ends of the discharge port 11, and the connecting plates 12 are connected to the frame 51 by bolts;

[0024] The cross-section of the discharge port 11 is an isosceles trapezoid with a longer upper base and a shorter lower base, and the width of the frame 51 is the same as the top width of the discharge port 11.

[0025] Specifically, absorbent cotton 52 is rotatably installed on the connecting frame 53 connected to the sliding rods 54 on both sides of the frame 51. The sliding rods 54 can slide through the frame 51, and the limiting plate 56 at the other end of the sliding rods 54 is connected to the frame 51 through the spring 55. This allows the absorbent cotton 52 to adapt to the thickness and surface condition of the fabric through the elastic force of the spring 55, and always closely adhere to the fabric surface. This ensures that the dyes on all parts of the fabric can fully contact the absorbent cotton 52, creating favorable conditions for the adsorption of dyes.

[0026] The absorbent cotton 52 itself has adsorption properties. When the fabric moves out of the outlet 11 and passes through the absorbent cotton 52, the absorbent cotton 52 can directly adsorb the dye on the surface of the fabric, thereby reducing the amount of dye residue on the surface of the fabric.

[0027] By removing more dye, it is possible to prevent these residual dyes from re-contaminating other parts of the fabric during subsequent processing or use, causing problems such as uneven dyeing or color spots. This improves the overall quality and uniformity of fabric dyeing. At the same time, with less residual dye on the fabric surface, the amount of detergent, washing time, and washing intensity required during subsequent washing can be reduced accordingly, thereby saving detergent costs, water and electricity costs, and equipment operating costs.

[0028] During installation, workers can easily assemble the frame 51 with the discharge port 11 via the connecting plate 12, making the operation simple and quick. When maintenance work such as repairing or replacing the cleaning component 5 or cleaning the inside of the dyeing tank 1 is required, the bolts can be easily unscrewed to separate the frame 51 from the discharge port 11, improving the convenience of equipment maintenance.

[0029] Example 2:

[0030] To avoid excessive dye adhering to absorbent cotton 52, please refer to [link / reference needed]. Figures 1-4 Based on embodiment 1, a fixing plate 532 is fixedly provided in the middle of the connecting frame 53. The fixing plate 532 is inclined, and the absorbent cotton 52 is placed above the fixing plate 532.

[0031] A second spring 533 is installed at the bottom of the fixing plate 532. The fixing plate 532 is connected to the scraper 531 through the second spring 533. The scraper 531 is rotatably installed in the connecting frame 53.

[0032] Specifically, the fixed plate 532 is connected to the scraper 531 via spring 533. During the operation of the device, the scraper 531 can contact the surface of the fabric under the action of spring 533. As the fabric moves, the scraper 531 can scrape off excess dye adhering to the surface of the fabric, avoiding excessive dye adhering to the fabric, which would affect the subsequent adsorption and removal of dye by the absorbent cotton 52.

[0033] By pre-treating the dyeing agent with scraper 531, the amount of dye reaching the absorbent cotton 52 is reduced, so that the absorbent cotton 52 can always maintain good adsorption activity and will not reduce its adsorption capacity due to excessive adsorption of dyeing agent. It can more effectively adsorb the small amount of remaining dyeing agent on the fabric and improve the overall dyeing effect.

[0034] Working principle: When the equipment is started, the fabric enters the dyeing tank 1 under the action of roller 2. At the same time, water pump 3 starts to work, and the dyeing agent at the bottom of dyeing tank 1 is extracted through conduit 31 and sprayed onto the fabric through the return tube 32. Meanwhile, when the fabric passes through the dyeing agent inside dyeing tank 1, the electrophoresis mechanism 4 located in the middle of dyeing tank 1 starts to work. Through electrophoresis, the dyeing agent is better attached to the polyester knitted fabric, improving the color fastness and uniformity of dyeing.

[0035] The dyed fabric is removed from the outlet 11 of the dyeing vat 1. During the removal process, the fabric first comes into contact with the scraper 531. Since the scraper 531 is connected to the fixed plate 532 through the second spring 533, the scraper 531 contacts the fabric surface under the action of the second spring 533. As the fabric moves, the scraper 531 scrapes off the excess dye adhering to the fabric surface. The fabric, after being pretreated by the scraper 531, continues to move and comes into contact with the absorbent cotton 52. Because the absorbent cotton 52 on the connecting frame 53 connected by the slide rods 54 on both sides of the frame 51 can adapt to the thickness and surface condition of the fabric through the slide rods 54, the limiting plate 56 and the first spring 55, it always closely adheres to the fabric surface. The absorbent cotton 52 will absorb the remaining dye on the fabric surface, further reducing the amount of dye residue on the fabric surface. After the dye removal treatment, the fabric can undergo subsequent finishing, drying and other processes to complete the entire dyeing process.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0037] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A dyeing device for high color fastness polyester knitted fabric, comprising a dyeing tank (1), wherein rollers (2) are provided at both ends of the top of the dyeing tank (1), an electrophoresis mechanism (4) is provided in the middle of the dyeing tank (1), a water pump (3) is provided on one side of the dyeing tank (1), a U-shaped tube (32) is inserted into the top of the water pump (3), and a conduit (31) is fixedly connected to the bottom of the water pump (3), characterized in that: The dyeing cylinder (1) has a discharge port (11) at one end of its top. A cleaning component (5) is provided above the discharge port (11). The cleaning component (5) includes a frame (51). Slide rods (54) are provided at equal intervals on both sides of the frame (51). A connecting frame (53) is fixedly connected to one end of the slide rod (54). An absorbent cotton (52) is rotatably installed on the top of the connecting frame (53). The connecting frames (53) connected to the slide rods (54) on both sides of the frame (51) are symmetrical to each other. The slide rod (54) slides through the frame (51). A limiting plate (56) is fixedly provided at the other end of the slide rod (54). A spring (55) is installed on the inner side of the limiting plate (56). The limiting plate (56) is connected to the frame (51) through the spring (55).

2. The dyeing apparatus for high color fastness polyester knitted fabric according to claim 1, characterized in that: Connecting plates (12) are fixedly installed on both ends of the discharge port (11), and the connecting plates (12) are connected to the frame (51) by bolts.

3. The dyeing apparatus for high color fastness polyester knitted fabric according to claim 2, characterized in that: The cross-section of the discharge port (11) is an isosceles trapezoid with a longer upper base and a shorter lower base, and the width of the frame (51) is the same as the top width of the discharge port (11).

4. The dyeing apparatus for high color fastness polyester knitted fabric according to claim 1, characterized in that: A fixing plate (532) is fixedly installed in the middle of the connecting frame (53). The fixing plate (532) is inclined, and the absorbent cotton (52) is placed above the fixing plate (532).

5. The dyeing apparatus for high color fastness polyester knitted fabric according to claim 4, characterized in that: A second spring (533) is installed at the bottom of the fixing plate (532). The fixing plate (532) is connected to the scraper (531) through the second spring (533). The scraper (531) is rotatably installed in the connecting frame (53).

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