Textile fabric ink jet dyeing method

Abstract

The invention discloses an ink-jet dyeing method for a textile fabric. The method comprises a dye liquor coloring step and a color fixing agent treatment step, in the dyeing liquid coloring step, the cloth is dyed with a coloring liquid; in the color fixing agent treatment step, the cloth is dyed with a color fixing agent; wherein at least one of the step of dyeing with the dye liquor and the step of treating with the color fixing agent uses a micro-droplet spraying device; the micro-droplet spraying device is provided with a plurality of micro-droplet generators, and the sum of the spraying ranges of the micro-droplet generators covers the whole breadth of the cloth; each droplet generator is provided with a plurality of spray holes. At least one of the coloring liquid and the color fixing agent is sprayed and dyed by the microdroplet spraying device, so that the waste of the coloring liquid and the color fixing agent is effectively reduced, and energy conservation and environmental protection are realized; the microdroplet jetting device is provided with a plurality of microdroplet generators, high-speed one-time passing dyeing is achieved, and the dyeing efficiency and the combination flexibility are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of textile printing and dyeing, and particularly to an inkjet dyeing method for textile fabrics. Background Art

[0002] Existing printing and dyeing is generally carried out by overflow dyeing in a dyeing vat or padding dyeing on a stentor. The fabric is first colored through a dyeing vat or a dyeing trough, and then a curing agent is applied to the fabric by an impregnation method or a coating method for color fixation. In this way, the usage amounts of the dyeing liquid and the curing agent will be much higher than the actual amount required for the fabric to be stained, resulting in waste of dyes and color fixatives. Moreover, the excess dyes and color fixatives on the fabric need to be washed with clean water, generating a large amount of sewage discharge, causing environmental pollution and greatly increasing the subsequent sewage treatment cost. Although the stentor padding dyeing has high production efficiency, there are color differences between the front and the back and between the left, middle and right in terms of dyeing uniformity, and multiple drying and baking are required, consuming a large amount of energy. The overflow dyeing in a dyeing vat is batch production, with relatively low efficiency, and both energy consumption and sewage discharge are higher than those of the stentor padding dyeing. Summary of the Invention

[0003] In order to overcome the deficiencies in the prior art, the present invention provides an inkjet dyeing method for textile fabrics, which has the advantages of energy conservation and environmental protection.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An inkjet dyeing method for textile fabrics, characterized in that: it includes a dyeing liquid coloring step and a curing agent treatment step; the dyeing liquid coloring step dyes the fabric with a coloring liquid; the curing agent treatment step dyes the fabric with a curing agent; wherein at least one of the dyeing liquid coloring step and the curing agent treatment step uses a microdroplet ejection device; the microdroplet ejection device has a plurality of microdroplet generators and the total ejection range of the plurality of microdroplet generators covers the entire width of the fabric; each microdroplet generator has a plurality of spray holes.

[0006] By adopting the above technical solutions, at least one of the coloring liquid and the curing agent is dyed by passing through the microdroplet ejection device, effectively reducing the waste of the coloring liquid and the curing agent, saving energy and protecting the environment; the microdroplet ejection device has a plurality of microdroplet generators, realizing high-speed one-time passing for dyeing, improving the combination flexibility. During subsequent maintenance, only the damaged microdroplet generator needs to be replaced separately, improving the overall service life of the microdroplet ejection device.

[0007] Optionally, the microdroplet ejection device includes a plurality of groups of microdroplet ejection components arranged at intervals along the fabric conveying direction, the microdroplet ejection components include a plurality of microdroplet generators arranged along the direction perpendicular to the fabric conveying direction, and the ejection range of the microdroplet ejection components fully covers the width of the fabric.

[0008] By adopting the above technical solution, multiple groups of micro-droplet ejection components improve the liquid coverage rate and production efficiency.

[0009] Optionally, in the dyeing step of the dye liquor, a first micro-droplet ejection device is used, and the first micro-droplet ejection device is used to eject a coloring solution onto the fabric; in the fixing agent treatment step, a second micro-droplet ejection device is used, and the second micro-droplet ejection device is used to eject a fixing agent onto the fabric.

[0010] By adopting the above technical solution, both the coloring solution and the fixing agent are dyed through the micro-droplet ejection device, effectively reducing the waste of the coloring solution and the fixing agent, and saving energy and being environmentally friendly.

[0011] Optionally, in the dyeing step of the dye liquor, a first padding component is used, and the first padding component is used for padding the coloring solution on the fabric; in the fixing agent treatment step, a second micro-droplet ejection device is used, and the second micro-droplet ejection device is used to eject a fixing agent onto the fabric.

[0012] By adopting the above technical solution, the fixing agent is spray-dyed using the micro-droplet ejection device, which is water-saving and energy-saving and more environmentally friendly compared to using padding equipment for both the coloring solution and the fixing agent.

[0013] Optionally, in the dyeing step of the dye liquor, a first micro-droplet ejection device is used, and the first micro-droplet ejection device is used to eject a coloring solution onto the fabric; in the fixing agent treatment step, a second padding component is used, and the second padding component is used for padding the fixing agent on the fabric.

[0014] By adopting the above technical solution, the coloring solution is spray-dyed using the micro-droplet ejection device, which is water-saving and energy-saving and more environmentally friendly compared to using padding equipment for both the coloring solution and the fixing agent.

[0015] Optionally, the dyeing step of the dye liquor is before the fixing agent treatment step.

[0016] By adopting the above technical solution, the fabric is first dyed with the coloring solution and then fixed with the fixing agent, improving the quality of dyeing.

[0017] Optionally, the fixing agent treatment step is before the dyeing step of the dye liquor.

[0018] By adopting the above technical solution, the fabric is dyed with the fixing agent, enabling the subsequently dyed coloring solution to be fixed better, improving the quality of dyeing.

[0019] Optionally, it further includes a drying step; the drying step is between the dyeing step of the dye liquor and the fixing agent treatment step; the drying step uses a drying component; the drying component is used to dry the fabric.

[0020] By adopting the above technical solution, the drying component enables the coloring liquid or the fixing agent dyed on the fabric to be dried and cured, reducing the impact on subsequent processes.

[0021] Optionally, the distance between the micro-droplet ejection device and the fabric is adjustable.

[0022] By adopting the above technical solution, by changing the distance between the micro-droplet ejection device and the fabric, the penetration ability of the coloring liquid and the fixing agent can be changed, so as to adapt to fabrics of different thicknesses and improve the spraying and dyeing quality of fabrics of different thicknesses.

[0023] Optionally, multiple micro-droplet generators are arranged in parallel along the direction perpendicular to the fabric conveying direction; the spraying ranges of adjacent micro-droplet generators in the direction perpendicular to the fabric conveying direction are seamlessly connected or partially overlapped in the projection on the plane perpendicular to the fabric conveying direction.

[0024] By adopting the above technical solution, the seamless connection of the projections of adjacent micro-droplet generators avoids color difference in the fabric at the splicing position between the micro-droplet generators, and the partial overlap of the projections of adjacent micro-droplet generators avoids gap white streaks in the fabric at the splicing position between the micro-droplet generators, thus ensuring that the spraying range of the micro-droplet ejection device is fully covered in the direction perpendicular to the fabric conveying direction.

[0025] Optionally, multiple micro-droplet generators are arranged in a staggered manner along the fabric conveying direction; the spraying ranges of adjacent micro-droplet generators in the direction perpendicular to the fabric conveying direction are seamlessly connected or partially overlapped in the projection on the plane perpendicular to the fabric conveying direction.

[0026] By adopting the above technical solution, the seamless connection of the projections of adjacent micro-droplet generators avoids color difference in the fabric at the splicing position between the micro-droplet generators, and the partial overlap of the projections of adjacent micro-droplet generators avoids gap white streaks in the fabric at the splicing position between the micro-droplet generators, thus ensuring that the spraying range of the micro-droplet ejection device is fully covered in the direction perpendicular to the fabric conveying direction.

[0027] Optionally, multiple micro-droplet generators are arranged along a first direction; the first direction is inclined with respect to the fabric conveying direction; the spraying ranges of adjacent micro-droplet generators in the direction perpendicular to the fabric conveying direction are seamlessly connected or partially overlapped in the projection on the plane perpendicular to the fabric conveying direction.

[0028] By adopting the above technical solution, the seamless connection of the projections of adjacent micro-droplet generators avoids color difference in the fabric at the splicing position between the micro-droplet generators, and the partial overlap of the projections of adjacent micro-droplet generators avoids gap white streaks in the fabric at the splicing position between the micro-droplet generators, thus ensuring that the spraying range of the micro-droplet ejection device is fully covered in the direction perpendicular to the fabric conveying direction.

[0029] Optionally, a plurality of nozzles of the droplet generator are arranged along the length direction of the droplet generator; the length direction of the droplet generator is perpendicular to the fabric conveying direction.

[0030] By adopting the above technical solution, it is convenient to arrange the entire droplet spraying device.

[0031] Optionally, a plurality of nozzles of the droplet generator are arranged along the length direction of the droplet generator; the length direction of the droplet generator forms an angle b with the fabric conveying direction, where 0° < b < 90° or 90° < b < 180°.

[0032] By adopting the above technical solution, the number of nozzle arrangements is increased, thereby improving the quality of spraying and dyeing. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention.

[0034] Figure 2 is a schematic structural diagram of Embodiment 2 of the present invention.

[0035] Figure 3 is a schematic structural diagram of Embodiment 3 of the present invention.

[0036] Figure 4 is a schematic structural diagram of Embodiment 4 of the present invention.

[0037] Figure 5 is a schematic structural diagram of Embodiment 5 of the present invention.

[0038] Figure 6 is a schematic structural diagram of Embodiment 6 of the present invention.

[0039] Figure 7 is a schematic structural diagram of Embodiment 7 of the present invention.

[0040] Figure 8 is a schematic structural diagram of Embodiment 8 of the present invention.

[0041] Figure 9 is a schematic structural diagram of Embodiment 9 of the present invention.

[0042] Figure 10 is a schematic structural diagram of Embodiment 10 of the present invention.

[0043] Figure 11 is a schematic structural diagram of the parallel arrangement of the droplet generators of the present invention.

[0044] Figure 12 is a schematic structural diagram of the staggered arrangement of the droplet generators of the present invention.

[0045] Figure 13It is a schematic structural diagram of the obliquely arranged micro-droplet generator of the present invention.

[0046] Figure 14 It is a schematic structural diagram in which the length direction of the micro-droplet generator of the present invention is perpendicular to the fabric conveying direction.

[0047] Figure 15 It is a schematic structural diagram in which the length direction of the micro-droplet generator of the present invention is inclined to the fabric conveying direction.

[0048] Figure 16 It is a schematic structural diagram of the arrangement of the micro-droplet ejection assembly 80 of the present invention.

[0049] Explanation of reference numerals:

[0050] 10. Fabric;

[0051] 20. First micro-droplet ejection device;

[0052] 30. Second micro-droplet ejection device;

[0053] 40. Drying assembly;

[0054] 50. First padding and dyeing assembly;

[0055] 60. Second padding and dyeing assembly;

[0056] 70. Micro-droplet generator; 71. Spray holes;

[0057] 80. Micro-droplet ejection assembly;

[0058] a. First direction; b. Included angle. Detailed implementation manners

[0059] The following further describes the present invention in detail with reference to the attached Figures 1 - 16 drawings.

[0060] Embodiment 1: Disclose an inkjet dyeing machine. Refer to Figure 1 , which includes a bracket, a fabric conveying mechanism, a first micro-droplet ejection device 20 and a second micro-droplet ejection device 30; the fabric conveying mechanism, the first micro-droplet ejection device 20 and the second micro-droplet ejection device 30 are all arranged on the bracket; the fabric conveying mechanism is used for conveying the fabric 10; the fabric conveying mechanism is an existing mechanism, which usually includes a plurality of drive rollers, correction rollers, conveying mesh belts and drive components; the first micro-droplet ejection device 20 and the second micro-droplet ejection device 30 are spaced apart along the fabric conveying direction; in the fabric conveying direction, the first micro-droplet ejection device 20 is located in front of the second micro-droplet ejection device 30, wherein the first micro-droplet ejection device 20 is used for ejecting a coloring liquid, and the second micro-droplet ejection device 30 is used for ejecting a fixing agent, that is, the fabric 10 first passes through the first micro-droplet ejection device 20 for coloring liquid spraying and dyeing, and then passes through the second micro-droplet ejection device 30 for fixing agent spraying and dyeing.

[0061] The second droplet ejection device 30 and the first droplet ejection device 20 both have a plurality of droplet generators 70, the total ejection range of the plurality of droplet generators 70 covers the entire width of the cloth 10, the droplet generator 70 has a plurality of tiny nozzles 71, and the NPI value of the second droplet ejection device 30 and the first droplet ejection device 20 is 100-600, wherein NPI (Nozzle Per Inch) reflects the nozzle density and printing accuracy. Figure 14 , the plurality of nozzles 71 of the droplet generator 70 are arranged along the length direction of the droplet generator 70; the length direction of the droplet generator 70 is perpendicular to the conveying direction of the fabric 10. Figure 15 , the multiple nozzles 71 of the droplet generator 70 are arranged along the length direction of the droplet generator 70; the multiple nozzles 71 of the droplet generator 70 are arranged along the length direction of the droplet generator 70; the length direction of the droplet generator 70 forms an angle b with the conveying direction of the cloth 10, 0 degrees <b <90 degrees or 90 degrees <b <180 degrees.

[0062] The working principle of the second micro-droplet ejection device 30 and the first micro-droplet ejection device 20 is the same as that of the existing micro-droplet ejection device, and the ink jet flow rate can be changed, wherein the ink jet flow rate is 30-3000 liters / hour; in addition, the number of nozzles used at the same time can also be changed. The second micro-droplet ejection device 30 and the first micro-droplet ejection device 20 adopt continuous ink jetting, so that they can adapt to different cloth conveying speeds, wherein the cloth conveying speed is 20-100 meters / minute.

[0063] In order to change the penetration ability of the second micro-droplet injection device 30 and the first micro-droplet injection device 20, the distance between the first micro-droplet injection device 20 and the cloth 10 can be adjusted; the distance between the second micro-droplet injection device 30 and the cloth 10 can be adjusted. The specific adjustment method can be achieved by using linear drive parts such as electric cylinders, air cylinders, screw slide rail combinations, etc.

[0064] refer to Figure 11, in order to complete the dyeing or fixing agent application for the entire width of the fabric in one pass, multiple droplet generators 70 of the second droplet ejection device 30 and the first droplet ejection device 20 are arranged in parallel along the vertical direction of the fabric conveying direction. The ejection ranges of adjacent droplet generators in the vertical direction of the fabric conveying direction are seamlessly connected or partially overlapped in the projection on the vertical plane of the fabric conveying direction. When the ejection ranges of adjacent droplet generators in the vertical direction of the fabric conveying direction are seamlessly connected in the projection on the vertical plane of the fabric conveying direction, the liquids ejected by adjacent droplet generators do not overlap, so that there is no color difference (shading) at the splicing position of adjacent droplet generators on the fabric 10; when the ejection ranges of adjacent droplet generators in the vertical direction of the fabric conveying direction are partially overlapped in the projection on the vertical plane of the fabric conveying direction, the liquids ejected by adjacent droplet generators overlap, so that there is no white streak gap at the splicing position of adjacent droplet generators on the fabric 10. This ensures that the ejection range of the droplet ejection device completely covers the vertical direction of the fabric 10 conveying direction, thereby reducing the possibility of missed dyeing. This ONE PASS inkjet dyeing equipment and method are beneficial to greatly improve the dyeing efficiency and color consistency before and after.

[0065] In other embodiments, refer to Figure 12 , multiple droplet generators 70 are arranged in a staggered manner along the fabric 10 conveying direction. The ejection ranges of adjacent droplet generators in the vertical direction of the fabric 10 conveying direction are seamlessly connected or partially overlapped in the projection on the vertical plane of the fabric 10 conveying direction.

[0066] In another embodiment, refer to Figure 13 , multiple droplet generators 70 are arranged along the first direction a; the first direction a is inclined to the fabric 10 conveying direction; the ejection ranges of adjacent droplet generators in the vertical direction of the fabric 10 conveying direction are seamlessly connected or partially overlapped in the projection on the vertical plane of the fabric 10 conveying direction.

[0067] To improve the liquid coverage rate and production efficiency, refer to Figure 16 , both the second droplet ejection device 30 and the first droplet ejection device 20 include multiple groups of droplet ejection assemblies 80 arranged at intervals along the fabric 10 conveying direction. The droplet ejection assembly 80 includes multiple droplet generators 70 arranged along the vertical direction of the fabric 10 conveying. The ejection range of the droplet ejection assembly 80 completely covers the width of the fabric 10.

[0068] Embodiment 2: The difference between Embodiment 2 and Embodiment 1 is that refer to Figure 2, a drying component 40 is provided on the bracket; the drying component 40 is used for drying the fabric 10; the drying component 40 is located between the first micro-droplet spraying device 20 and the second micro-droplet spraying device 30; the fabric 10 passes through the first micro-droplet spraying device 20, the drying component 40 and the second micro-droplet spraying device 30 in sequence, that is, after the fabric 10 is dyed with the coloring liquid, it is dried, and then the fixing agent is sprayed.

[0069] The drying component 40 is a prior art, generally including a drying box and a drying component. The drying component uses electric heating, gas heating, lamp heating or steam heating; in order to make the drying uniform, a hot air circulation component is generally provided in the drying box to make the heat uniform.

[0070] Embodiment Three: The difference between Embodiment Three and Embodiment One is: Refer to Figure 3 , in the fabric conveying direction, the first micro-droplet spraying device 20 is located behind the second micro-droplet spraying device 30, that is, the fabric 10 first passes through the second micro-droplet spraying device 30 for spraying the fixing agent, and then passes through the first micro-droplet spraying device 20 for spraying the coloring liquid.

[0071] Embodiment Four: The difference between Embodiment Four and Embodiment Three is: Refer to Figure 4 , a drying component 40 is provided on the bracket; the drying component 40 is used for drying the fabric 10; the drying component 40 is located between the first micro-droplet spraying device 20 and the second micro-droplet spraying device 30; the fabric 10 passes through the second micro-droplet spraying device 30, the drying component 40 and the first micro-droplet spraying device 20 in sequence, that is, after the fabric 10 is sprayed with the fixing agent, it is dried, and then the coloring liquid is sprayed.

[0072] The drying component 40 is a prior art, generally including a drying box and a drying component. The drying component uses electric heating, gas heating, lamp heating or steam heating; in order to make the drying uniform, a hot air circulation component is generally provided in the drying box to make the heat uniform.

[0073] Embodiment Five: The difference between Embodiment Five and Embodiment One is: Refer to Figure 5 , the first padding component 50 is used to replace the first micro-droplet spraying device 20, and the first padding component 50 is used for padding the fabric with the coloring liquid. That is, the fabric 10 first passes through the first padding component 50 for padding the coloring liquid, and then passes through the second micro-droplet spraying device 30 for spraying the fixing agent.

[0074] The first padding component 50 is a common padding device; since the micro-droplet spraying device is a high-precision device with relatively high cost, while the padding device is relatively simple and has lower cost; at the same time, using the padding device for dyeing and the micro-droplet spraying device for fixing is more water-saving and energy-saving and more environmentally friendly compared to using the padding device for both dyeing and fixing.

[0075] Example Six: The difference between Example Six and Example Five is as follows: Refer to Figure 6 , a drying component 40 is provided on the bracket; the drying component 40 is used to dry the fabric 10; the drying component 40 is located between the first padding component 50 and the second micro-droplet spraying device 30; the fabric 10 passes through the first padding component 50, the drying component 40 and the second micro-droplet spraying device 30 in sequence, that is, after the fabric 10 is padded with the coloring liquid, it is dried, and then the fixing agent is spray-dyed.

[0076] The drying component 40 is a prior art, generally including a drying box and a drying component. The drying component uses electric heating, gas heating, lamp heating or steam heating; in order to make the drying uniform, a hot air circulation component is generally provided in the drying box to make the heat uniform.

[0077] Example Seven: The difference between Example Seven and Example Three is as follows: Refer to Figure 7 , the second padding component 60 is used to replace the second micro-droplet spraying device 30, and the second padding component 60 is used for padding the fabric with the fixing agent. That is, the fabric 10 first passes through the second padding component 60 for padding with the fixing agent, and then passes through the first micro-droplet spraying device 20 for spray-dyeing with the coloring liquid.

[0078] The second padding component 60 is a common padding device; since the micro-droplet spraying device is a high-precision device and the cost is relatively high, while the padding device is relatively simple and the cost is low; at the same time, the micro-droplet spraying device is used for dyeing and the padding device is used for fixing. Compared with using the padding device for both dyeing and fixing, it saves water and energy and is more environmentally friendly.

[0079] Example Eight: The difference between Example Eight and Example Seven is as follows: Refer to Figure 8 , a drying component 40 is provided on the bracket; the drying component 40 is used to dry the fabric 10; the drying component 40 is located between the second padding component 60 and the first micro-droplet spraying device 20; the fabric 10 passes through the second padding component 60, the drying component 40 and the first micro-droplet spraying device 20 in sequence, that is, after the fabric 10 is padded with the fixing agent, it is dried, and then the coloring liquid is spray-dyed.

[0080] The drying component 40 is a prior art, generally including a drying box and a drying component. The drying component uses electric heating, gas heating, lamp heating or steam heating; in order to make the drying uniform, a hot air circulation component is generally provided in the drying box to make the heat uniform.

[0081] Example Nine: The difference between Example Eight and Example Two is as follows: Refer to Figure 9, the second padding and dyeing assembly 60 is used to replace the second micro-droplet spraying device 30, that is, the fabric 10 passes through the first micro-droplet spraying device 20, the drying assembly 40 and the second padding and dyeing assembly 60 in sequence. That is, after the fabric 10 is sprayed with the coloring liquid, it is dried, and then the padding and dyeing of the fixing agent is carried out.

[0082] The drying assembly 40 is a prior art, generally including a drying box and a drying component. The drying component uses electric heating, gas heating, lamp heating or steam heating; in order to make the drying uniform, a hot air circulation component is generally provided in the drying box to make the heat uniform. The function of the drying assembly 40 in this embodiment is to dry and solidify the coloring liquid before the padding and dyeing of the fixing agent, so as to avoid the coloring liquid being washed off and contaminating the curing agent when the fabric enters the second padding and dyeing assembly 60; however, actually, the drying assembly 40 can be absent, but the padding and dyeing effect of the curing agent is relatively not as good as the case where the drying assembly 40 is provided.

[0083] The second padding and dyeing assembly 60 is a common padding and dyeing device; since the micro-droplet spraying device is a high-precision device with relatively high cost, while the padding and dyeing device is relatively simple and has low cost; at the same time, the dyeing uses the micro-droplet spraying device and the fixing uses the padding and dyeing device, which is water-saving and energy-saving and more environmentally friendly compared with using the padding and dyeing device for both dyeing and fixing.

[0084] Embodiment Ten: The difference between Embodiment Ten and Embodiment Four is: Refer to Figure 10 , the first padding and dyeing assembly 50 is used to replace the first micro-droplet spraying device 20, that is, the fabric 10 passes through the second micro-droplet spraying device 30, the drying assembly 40 and the first padding and dyeing assembly 50 in sequence. That is, after the fabric 10 is sprayed with the fixing agent, it is dried, and then the padding and dyeing of the coloring liquid is carried out.

[0085] The drying assembly 40 is a prior art, generally including a drying box and a drying component. The drying component uses electric heating, gas heating, lamp heating or steam heating; in order to make the drying uniform, a hot air circulation component is generally provided in the drying box to make the heat uniform. The function of the drying assembly 40 in this embodiment is to dry and solidify the fixing agent before the padding and dyeing of the coloring liquid, so as to avoid the fixing agent being washed off and contaminating the coloring liquid when the fabric enters the first padding and dyeing assembly 50; however, actually, the drying assembly 40 can be absent, but the padding and dyeing effect of the coloring liquid is relatively not as good as the case where the drying assembly 40 is provided.

[0086] The first padding and dyeing assembly 50 is a common padding and dyeing device; since the micro-droplet spraying device is a high-precision device with relatively high cost, while the padding and dyeing device is relatively simple and has low cost; at the same time, the fixing uses the micro-droplet spraying device and the dyeing uses the padding and dyeing device, which is water-saving and energy-saving and more environmentally friendly compared with using the padding and dyeing device for both dyeing and fixing.

[0087] In all of the above embodiments, the first droplet ejection device 20 and the first padding assembly 50 serve as the dye solution coloring assemblies to dye the fabric with the coloring solution; the second droplet ejection device 30 and the second padding assembly 60 serve as the fixing agent treatment assemblies to dye the fabric with the fixing agent.

[0088] In addition, a textile fabric inkjet dyeing method is disclosed, which uses the inkjet dyeing machine in any of the above embodiments to perform fabric printing and dyeing, including a dye solution coloring step and a fixing agent treatment step; the dye solution coloring step dyes the fabric 10 with the coloring solution; the fixing agent treatment step dyes the fabric 10 with the fixing agent; in this way, at least one of the dye solution coloring step and the fixing agent treatment step is performed by a droplet ejection device, effectively reducing the waste of the coloring solution and the fixing agent, and saving energy and protecting the environment.

[0089] All of the above embodiments are applied to the fixing agent, but actually they can also be applied to other auxiliaries, such as synergists, water repellents, antibacterial agents, sunscreens, fire retardants, etc.

[0090] The above are all the preferred embodiments of the present invention. The protection scope of the present invention is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A method for inkjet dyeing of textile fabrics, characterized in that: The invention comprises a dyeing step and a fixing agent treatment step; the dyeing step dyes the fabric (10) with a coloring liquid; the fixing agent treatment step dyes the fabric (10) with a fixing agent; at least one of the dyeing step and the fixing agent treatment step uses a droplet injection device; the droplet injection device has a plurality of droplet generators and the total injection range of the plurality of droplet generators covers the entire width of the fabric (10); each droplet generator has a plurality of nozzles.

2. The method for inkjet dyeing of textile fabrics according to claim 1, characterized in that: The micro-droplet ejection device comprises a plurality of groups of micro-droplet ejection assemblies arranged at intervals along the conveying direction of the cloth (10), the micro-droplet ejection assemblies comprising a plurality of micro-droplet generators arranged along the vertical direction of the conveying direction of the cloth (10), and the ejection range of the micro-droplet ejection assemblies fully covers the width of the cloth (10).

3. The method for inkjet dyeing of textile fabrics according to claim 1, characterized in that: The dyeing step uses a first micro-droplet injection device (20), and the first micro-droplet injection device (20) is used to spray the coloring liquid onto the cloth (10); the color fixing agent treatment step uses a second micro-droplet injection device (30), and the second micro-droplet injection device (30) is used to spray the color fixing agent onto the cloth (10).

4. The method for inkjet dyeing of textile fabrics according to claim 1, characterized in that: The dyeing step uses a first pad dyeing component (50), and the first pad dyeing component (50) is used for pad dyeing the cloth (10) with the dyeing liquid; the fixing agent treatment step uses a second droplet spraying device (30), and the second droplet spraying device (30) is used for spraying the fixing agent onto the cloth (10); Alternatively, the dyeing step uses a first micro-droplet ejection device (20), wherein the first micro-droplet ejection device (20) is used to eject the coloring liquid onto the cloth (10); The fixing agent treatment step uses a second pad dyeing component (60), and the second pad dyeing component (60) is used for fixing agent pad dyeing of the cloth (10).

5. The method for inkjet dyeing of textile fabrics according to claim 1, characterized in that: The dye solution coloring step is located before the color fixing agent treatment step; or the color fixing agent treatment step is located before the dye solution coloring step.

6. The method for inkjet dyeing of textile fabrics according to claim 1, characterized in that: It also includes a drying step; the drying step is located between the dyeing step and the fixing agent treatment step; the drying step uses a drying component (40); the drying component (40) is used to dry the cloth (10).

7. The method for inkjet dyeing of textile fabrics according to claim 1, characterized in that: The distance between the micro-droplet ejection device and the cloth (10) can be adjusted.

8. The method for inkjet dyeing of textile fabrics according to claim 1, characterized in that: A plurality of droplet generators are arranged in parallel along a direction perpendicular to the conveying direction of the cloth (10); the projections of the spray ranges of adjacent droplet generators in the direction perpendicular to the conveying direction of the cloth (10) on a plane perpendicular to the conveying direction of the cloth (10) are seamlessly connected or partially overlapped; Alternatively, a plurality of droplet generators are arranged in a staggered manner along the conveying direction of the fabric (10), and the projections of the spraying ranges of adjacent droplet generators in a direction perpendicular to the conveying direction of the fabric (10) on a plane perpendicular to the conveying direction of the fabric (10) are seamlessly connected or partially overlapped.

9. The method for inkjet dyeing of textile fabrics according to claim 1, characterized in that: A plurality of droplet generators are arranged along a first direction; the first direction is arranged obliquely to the conveying direction of the cloth (10); and the projections of the spraying ranges of adjacent droplet generators in a direction perpendicular to the conveying direction of the cloth (10) on a plane perpendicular to the conveying direction of the cloth (10) are seamlessly connected or partially overlapped.

10. The method for inkjet dyeing of textile fabrics according to claim 1, characterized in that: The plurality of nozzles of the microdroplet generator are arranged along the length direction of the microdroplet generator; the length direction of the microdroplet generator is perpendicular to the conveying direction of the fabric (10); Alternatively, the plurality of nozzles of the droplet generator are arranged along the length direction of the droplet generator; the length direction of the droplet generator forms an angle b with the conveying direction of the fabric (10), 0 degrees < b < 90 degrees or 90 degrees < b < 180 degrees.

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