Dyeing equipment, dyeing process based on the dyeing equipment and application of the process

Abstract

The present invention discloses a dyeing device, a dyeing process based on the dyeing device and an application of the process, and relates to the field of fabric dyeing and finishing. The main points of the technical solution are: comprising a casing, a partition is fixedly connected inside the casing, the partition divides the inner cavity of the casing into a cavitation cavity and an air flotation cavity, the cavitation cavity is connected to a guide tube on the side away from the air flotation cavity, the guide tube is connected to a pump body, the pump body is provided with an air intake interface for connecting to an air compressor, and an ultrasonic module is provided at the bottom of the cavitation cavity. The present invention completes the recycling of dye liquor, saves water resources, under the action of ultrasonic waves, bubbles collapse and close sharply, impacting nearby fabrics, making the structure of the fabric loose, and the tiny bubbles attached to the fabric in advance increase the number of cavitation nuclei, improve the effect of ultrasonic cavitation, and thus ensure that the fabric can guarantee the dyeing effect in a short time, shorten the dyeing process of the fabric, and improve the processing efficiency.

Description

Technical Field

[0001] The invention relates to the field of fabric dyeing and finishing, and more specifically, to a dyeing device, a dyeing process based on the dyeing device and an application of the process. Background Art

[0002] Dyeing is a common fabric processing method. By combining fabric and dye, the color required by the user is finally presented on the fabric, which enriches the choice of fabric appearance and improves the aesthetic value of the fabric. Based on different fabrics and different desired effects, people often choose different dyeing processes. The most common dyeing method is to put the dye in a container, then immerse the fabric in the container, let the dye penetrate into the fabric and adhere to the fabric, then take out the fabric, remove the residual dye on the surface of the fabric, and finally dry the fabric to fix the color to obtain dyed fabric.

[0003] However, for some thicker fabrics, the dye sometimes has difficulty penetrating deep into the fabric. Therefore, it is necessary to increase the retention time of the fabric in the dye to ensure that the dye can penetrate deep into the fabric smoothly and avoid problems such as whitening during stretching during the subsequent use of the fabric due to insufficient dyeing. However, this prolongs the fabric processing process and reduces production efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a dyeing device, a dyeing process based on the dyeing device and the application of the process.

[0005] The above technical purpose of the present invention is achieved through the following technical solutions: a dyeing device, including a casing, a partition is fixedly connected inside the casing, the partition divides the inner cavity of the casing into a cavitation chamber and an air flotation chamber, a connecting port is opened on the partition, the cavitation chamber and the air flotation chamber are connected to each other through the connecting port, the cavitation chamber is connected to a guide tube on the side away from the air flotation chamber, the guide tube is connected to a pump body, the pump body is provided with an air inlet interface for connecting to an air compressor, the output end of the pump body is connected to the air flotation chamber, the top of the casing is detachably connected with a filter bucket, one side of the filter bucket is connected to the top of the air flotation chamber, and the bottom end of the cavitation chamber is provided with an ultrasonic module.

[0006] The present invention is further configured as follows: two rollers are arranged above the cavitation cavity, two guide rollers are rotatably connected in the connection port, the axes of the rollers are arranged horizontally, and one end of the guide roller is higher than the other end of the guide roller.

[0007] The present invention is further configured such that the distance between the two guide rollers is greater than the distance between the two rolling rollers.

[0008] The present invention is further configured as follows: the filter bucket is located above the cavitation cavity, and the lowest point of the filter bucket is higher than the connecting port.

[0009] The present invention is further configured as follows: a shunt pipe is provided at the bottom end of the air flotation chamber, a plurality of through holes are penetrated through the outer wall of the shunt pipe, the through holes are arranged in an axial linear array along the shunt pipe, and one end of the shunt pipe is connected to the output end of the pump body.

[0010] A dyeing process based on a dyeing device, using the above-mentioned dyeing device, comprises the following steps:

[0011] S1, start the pump body to work, pressurize and gasify the dye solution drawn from the cavitation cavity, and then pump it into the air flotation cavity, and start the ultrasonic vibrator in the cavitation cavity;

[0012] S2, the fabric enters the air flotation cavity;

[0013] S3, the fabric passes through the connection port and enters the cavitation cavity;

[0014] S4, the fabric passes between two rollers;

[0015] S5. Dry the fabric.

[0016] The present invention is further configured as follows: in S1, the air content of the dye solution pumped into the air flotation chamber is 22%-25%.

[0017] The present invention is further configured as follows: in S2, when the fabric is located in the air flotation chamber, one side of the fabric is higher than the other side of the fabric.

[0018] The present invention is further configured as follows: in S5, the fabric is sequentially dried by a first drying step and a second drying step, and the temperature of the first drying step is lower than the temperature of the second drying step.

[0019] An application of a dyeing process is applied to dyeing of fabrics with a thickness greater than 0.3 mm, wherein the fabrics include woven fabrics and knitted fabrics.

[0020] In summary, the present invention has the following beneficial effects: the recycling of dye liquor is completed, water resources are saved, and under the action of ultrasonic waves, bubbles collapse and close sharply, causing impact on nearby fabrics, making the structure of the fabric loose, and tiny bubbles attached to the fabric in advance increase the number of cavitation nuclei, thereby improving the effect of ultrasonic cavitation, thereby ensuring that the fabric can achieve the dyeing effect in a short time, shortening the dyeing process of the fabric, and improving the processing efficiency. As the thickness of the fabric increases, the softness of the fabric decreases, and at this time, the impact of the cavitation effect on the fabric will have a more obvious effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1The structure of the first embodiment of the present invention is shown in FIG. Figure 1 ;

[0022] Figure 2 The structure of the first embodiment of the present invention is shown in FIG. Figure 2 ;

[0023] Figure 3 It is a cross-sectional view of the first embodiment of the present invention.

[0024] In the figure: 1. casing; 2. partition; 3. cavitation chamber; 4. air flotation chamber; 5. connection port; 6. guide pipe; 7. pump body; 8. air inlet port; 9. filter hopper; 10. ultrasonic module; 11. roller; 12. guide roller; 13. diverter pipe; 14. through hole. DETAILED DESCRIPTION

[0025] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0026] Embodiment 1: A dyeing device, such as Figure 1 , Figure 2 As shown, it includes a casing 1, a partition 2 is fixedly connected inside the casing 1, the partition 2 divides the inner cavity of the casing 1 into a cavitation cavity 3 and an air flotation cavity 4, a connecting port 5 is opened on the partition 2, the cavitation cavity 3 and the air flotation cavity 4 are connected to each other through the connecting port 5, the side of the cavitation cavity 3 away from the air flotation cavity 4 is connected to a guide tube 6, the guide tube 6 is connected to a pump body 7, the pump body 7 is provided with an air inlet interface 8 for connecting to an air compressor, the output end of the pump body 7 is connected to the air flotation cavity 4, a filter bucket 9 is detachably connected to the top of the casing 1, one side of the filter bucket 9 is connected to the top of the air flotation cavity 4, and an ultrasonic module 10 is provided at the bottom of the cavitation cavity 3.

[0027] Specifically, the casing 1 is welded with the partition 2, the connection port 5 is opened on the partition 2, the cavitation chamber 3 and the air flotation chamber 4 are respectively located on both sides of the partition 2, one end of the guide tube 6 is connected with the bottom of the cavitation chamber 3, and the other end of the dye liquid is connected to the input port of the pump body 7. The dye liquid flows from the air flotation chamber 4 into the cavitation chamber 3, and then is pumped into the pump body 7 through the guide tube 6. In the non-working state, the air inlet interface 8 is closed by a screw cap. In the working state, the pump body 7 is connected to the air compressor through the air inlet interface 8, so that the dye liquid after passing through the pump body 7 In addition to being pressurized, the dye liquor also increases its gas content. The dye liquor is then pumped back into the air flotation chamber 4 to complete the recycling of the dye liquor, saving water resources. After the dye liquor with a high gas content enters the air flotation chamber 4, the gas dissolved in the dye liquor is precipitated due to the reduction in pressure to form bubbles. Some of the bubbles pass through the surface of the fabric during the floating process, and carry the hair and debris on the surface of the fabric to the top of the dye liquor, thereby preventing the hair and debris from adhering to the surface of the fabric, making it difficult for the dye liquor to penetrate into the fabric. During the working process, the liquid level of the dye solution is higher than the height of the partition 2, and the hair and debris float to the top of the dye solution and flow with the dye solution, and finally flow into the filter bucket 9. The filter bucket 9 has a fine mesh structure, and the hair and debris remain in the filter bucket 9. The dye solution continues to flow into the cavitation chamber 3 to complete the collection of the hair and debris, so as to avoid the hair and debris affecting the recycling of the dye solution. Some bubbles are smaller in size and are subject to less buoyancy. Therefore, these bubbles adhere to the surface of the fabric and enter the cavitation chamber 3 as the fabric passes through the connecting port 5. In the cavitation chamber 3, the ultrasonic module 10 is composed of a plurality of ultrasonic vibrators and a shell with holes. The tiny bubbles serve as cavitation nuclei. Under the action of ultrasonic waves, the bubbles eventually collapse and close sharply, and impact the nearby fabrics, making the structure of the fabric loose. The tiny bubbles attached to the fabric in advance increase the number of cavitation nuclei, thereby improving the effect of ultrasonic cavitation, thereby ensuring that the fabric can achieve the dyeing effect in a short time, shortening the dyeing process of the fabric, and improving the processing efficiency.

[0028] like Figure 1 , Figure 2 , Figure 3As shown, two rollers 11 are arranged above the cavitation cavity 3, and two guide rollers 12 are rotatably connected in the connection port 5. The axis of the rollers 11 is arranged horizontally, one end of the guide roller 12 is higher than the other end of the guide roller 12, and the distance between the two guide rollers 12 is greater than the distance between the two rollers 11. Specifically, two support frames are arranged on both sides of one end of the shell where the cavitation cavity 3 is arranged, and the two rollers 11 are rotatably connected to the support frames. The rollers 11 are located above the cavitation cavity 3, and the fabric leaving the cavitation cavity 3 passes through the rollers 11. The rollers 11 squeeze the fabric so that the dye liquid further penetrates into the interior of the fabric and squeezes out the excess dye liquid from the fabric. The squeezed dye liquid falls back into the cavitation cavity 3 below, and finally enters the guide pipe 6 and flows toward the pump body 7. The length direction of the connection port 5 is the same as the axial direction of the guide roller 12. The inclined guide roller 12 makes the fabric passing between the guide rollers 12 The fabric also remains tilted, so that larger bubbles float along the small surface of the tilted fabric, while smaller bubbles, in addition to being subject to less buoyancy themselves, will also increase their adhesion to the fabric due to the microscopically rough surface of the fabric, thereby screening the bubble size and ensuring that the bubbles entering the cavitation chamber 3 are small in size and can meet the requirements of serving as cavitation nuclei. The distance between the guide rollers 12 is large, that is, during operation, the upper guide roller 12 of the two guide rollers 12 will come into contact with the fabric, preventing the lower guide roller 12 from coming into contact with the lower surface of the fabric, causing the bubbles attached to the lower surface of the fabric to be affected. The function of the lower guide roller 12 is mainly to ensure that the fabric can pass through the connecting port 5 smoothly during loading and unloading, preventing the fabric from coming into contact with the side wall of the connecting port 5 and causing unnecessary damage to the fabric.

[0029] like Figure 1 , Figure 2 As shown, the filter bucket 9 is located above the cavitation chamber 3, and the lowest point of the filter bucket 9 is higher than the connecting port 5. Specifically, two grooves are provided on the top surface of the shell, and protrusions corresponding to the grooves are integrally formed at both ends of the filter bucket 9. The cross section of the filter bucket 9 is V-shaped. Under normal conditions, one side of the filter bucket 9 is inserted into the two grooves through two protrusions, and the other side of the filter bucket 9 is embedded in the top of the partition 2. When the filter bucket 9 needs to be removed for replacement or cleaning and maintenance, the filter bucket 9 can be taken out by pulling it upward. Because the larger bubbles will also move in the horizontal direction with the flow of the dye liquid when they rise with the hair and debris, the actual movement direction of the hair and debris tends to be inclined upward. For the purpose of use, the hair and debris should be avoided as much as possible from gathering under the filter bucket 9. Therefore, the filter bucket 9 is set above the cavitation chamber 3 instead of above the air flotation chamber 4, so that the hair and debris are avoided from gathering between the filter bucket 9 and the partition 2. This setting also shortens the length of the air flotation chamber 4, improves the space utilization rate, and reduces the volume of the air flotation chamber 4, saving the dye liquid.

[0030] like Figure 1 , Figure 2As shown, a shunt pipe 13 is provided at the bottom end of the flotation chamber 4, and a plurality of through holes 14 are penetrated on the outer wall of the shunt pipe 13. The through holes 14 are arranged in an axial linear array along the shunt pipe 13. One end of the shunt pipe 13 is connected to the output end of the pump body 7. Specifically, relative to the inner diameter of the shunt pipe 13, the diameter of the through hole 14 is smaller. Therefore, when the pump body 7 pumps the dye liquid into the shunt pipe 13, the dye liquid with a higher gas content flows out from different through holes 14 respectively, avoiding the precipitated bubbles from being concentrated on one side of the flotation chamber 4, so that the bubbles are more evenly distributed on the lower surface of the fabric, thereby ensuring the dyeing effect of various parts of the fabric.

[0031] Embodiment 2: A dyeing process based on a dyeing device, using the above-mentioned dyeing device, comprises the following steps:

[0032] S1, start the pump body 7 to pressurize and gasify the dye solution drawn from the cavitation cavity 3 and then pump it into the air flotation cavity 4, and start the ultrasonic vibrator in the cavitation cavity 3;

[0033] S2, the fabric enters the air flotation chamber 4;

[0034] S3, the fabric passes through the connection port 5 and enters the cavitation cavity 3;

[0035] S4, the fabric passes between two rollers 11;

[0036] S5. Dry the fabric.

[0037] Specifically, the pump body 7 is first connected to the air compressor, and then the pump body 7 is started to make the dye liquid in the shell start to flow, and then the ultrasonic vibrator starts to work. Then, under the traction of the external roller group, the debris that has not passed through the dyeing equipment enters the air flotation chamber 4, and some hair debris on the surface of the fabric is removed in the air flotation chamber 4. Then the fabric passes through the connecting port 5 and enters the cavitation chamber 3, and is deeply dyed in the cavitation chamber 3. Finally, the fabric passes through the two rollers 11 and leaves the dyeing equipment. The fabric is dried and fixed to obtain the dyed fabric.

[0038] In S1, the air content of the dye liquid pumped into the air flotation chamber 4 is 22%-25%. In S2, when the fabric is located in the air flotation chamber 4, one side of the fabric is higher than the other side of the fabric. Specifically, by increasing the air content of the dye liquid pumped into the air flotation chamber 4, the amount of bubbles precipitated in the air flotation chamber 4 is increased. With the tilted fabric, the hair and debris on the surface of the fabric can float smoothly to the top of the air flotation chamber 4.

[0039] In S5, the fabric undergoes the first drying and the second drying in sequence, and the temperature of the first drying is lower than that of the second drying. Specifically, the fabric passes through the first drying area and the second drying area during drying, and the temperature is raised in stages to avoid dye migration that causes the dye inside the fabric to move to the outside of the fabric, thereby further ensuring the dyeing effect inside the fabric.

[0040] Embodiment 3: A dyeing process is applied to dyeing of fabrics with a thickness greater than 0.3 mm, the fabrics including woven fabrics and knitted fabrics. Specifically, in this embodiment, the dyeing process is applied to polyester fabrics with a thickness of 0.3 mm-0.6 mm. As the thickness of the fabric increases, the softness of the fabric decreases. At this time, the impact of the cavitation effect on the fabric will be more obvious, that is, the dyeing process is suitable for processing debris with a certain thickness.

[0041] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A dyeing device, characterized in that: The invention comprises a casing (1), wherein a partition (2) is fixedly connected inside the casing (1), wherein the partition (2) divides the inner cavity of the casing (1) into a cavitation cavity (3) and an air flotation cavity (4), wherein a connection port (5) is provided on the partition (2), wherein the cavitation cavity (3) and the air flotation cavity (4) are connected to each other via the connection port (5), wherein a flow guide pipe (6) is connected to a pump body (7), and wherein an air inlet interface (8) for connecting to an air compressor is provided on the pump body (7). ), the output end of the pump body (7) is communicated with the air flotation chamber (4), the top of the housing (1) is detachably connected to a filter bucket (9), one side of the filter bucket (9) is communicated with the top of the air flotation chamber (4), the bottom end of the cavitation chamber (3) is provided with an ultrasonic module (10), the top of the cavitation chamber (3) is provided with two rollers (11), the connection port (5) is rotatably connected to two guide rollers (12), the axis of the rollers (11) is horizontally arranged, and one end of the guide roller (12) is higher than the other end of the guide roller (12).

2. The dyeing equipment according to claim 1, characterized in that: The distance between the two guide rollers (12) is greater than the distance between the two rollers (11).

3. The dyeing equipment according to claim 1, characterized in that: The filter bucket (9) is located above the cavitation chamber (3), and the lowest point of the filter bucket (9) is higher than the connection port (5).

4. The dyeing equipment according to claim 1, characterized in that: A shunt pipe (13) is provided at the bottom end of the air flotation chamber (4), a plurality of through holes (14) are provided through the outer wall of the shunt pipe (13), the through holes (14) are arranged in a linear array along the axial direction of the shunt pipe (13), and one end of the shunt pipe (13) is connected to the output end of the pump body (7).

5. A dyeing process based on a dyeing device, using the dyeing device as described in any one of claims 1 to 4, characterized in that: The following steps are involved: S1, starting the pump body (7) to pressurize and aerate the dye solution drawn from the cavitation chamber (3) and then pump it into the air flotation chamber (4), and starting the ultrasonic vibrator in the cavitation chamber (3); S2, the fabric enters the air flotation chamber (4); S3, the fabric passes through the connection port (5), and the fabric enters the cavitation cavity (3); S4, the fabric passes between two rollers (11); S5. Dry the fabric.

6. The dyeing process based on the dyeing equipment according to claim 5, characterized in that: In the S1, the air content of the dye solution pumped into the air flotation chamber (4) is 22%-25%.

7. The dyeing process based on the dyeing equipment according to claim 5, characterized in that: In S2, when the fabric is located in the air flotation chamber (4), one side of the fabric is higher than the other side of the fabric.

8. The dyeing process based on the dyeing equipment according to claim 5, characterized in that: In S5, the fabric is sequentially dried in a first drying process and dried in a second drying process, wherein the temperature of the first drying process is lower than the temperature of the second drying process.

9. An application of a dyeing process, characterized in that: The method is applied to dyeing of fabrics with a thickness greater than 0.3 mm, wherein the fabrics include woven fabrics and knitted fabrics.

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