Uniform dyeing method, equipment, control method and device

Abstract

The present application provides a uniform dyeing method, apparatus, control method, and device. The uniform dyeing method includes the following steps: continuously conveying a substrate along a conveying direction; controlling the spraying of a coloring liquid onto at least one surface of the substrate so that the coloring liquid is slightly saturated within the substrate; and subjecting the slightly saturated substrate to pressure, causing the coloring liquid to penetrate the substrate and diffuse along a diffusion structure. The present application distributes the coloring liquid by spraying, and a distribution component is provided with a diffusion structure that guides the redistribution of the coloring liquid. Under the action of pressure, the coloring liquid penetrates the substrate and diffuses along the diffusion structure, thereby improving color consistency.

Description

Technical Field

[0001] The present application relates to the field of dyeing technology, and in particular to a uniform dyeing method, equipment, control method and device, electronic equipment, and computer-readable storage medium. Background Art

[0002] The existing pad-dyeing method involves briefly dipping the substrate in a coloring solution, then using rollers to squeeze the solution into the interstices of the substrate and remove any excess. However, the coloring solution content in the pad-dyeing tank fluctuates, decreasing as the material is stained. This results in poor color consistency and, because the tank has a minimum liquid level requirement, can easily lead to waste. Summary of the Invention

[0003] The purpose of the embodiments of the present application is to provide a uniform dyeing method, equipment, control method and device that are energy-saving and environmentally friendly, and can improve dyeing uniformity and color consistency.

[0004] In a first aspect, the present application provides a uniform dyeing method, comprising the following steps:

[0005] Continuously conveying the substrate along the conveying direction;

[0006] Controlling the spraying of the coloring liquid onto at least one surface of the substrate so that the coloring liquid is slightly saturated in the substrate;

[0007] The substrate in a slightly saturated state is subjected to pressure, so that the coloring liquid penetrates into the substrate and diffuses along the diffusion structure.

[0008] In one embodiment, controlling the coloring liquid to be sprayed onto at least one surface of the substrate so that the coloring liquid is slightly saturated in the substrate comprises the following steps:

[0009] The coloring liquid is atomized and sprayed with a first axis as a reference to form a corresponding spraying area on the substrate. The length direction of the spraying area is used as a second axis. There is a first preset angle between the first axis and the second axis, and the projections of adjacent spraying areas in the direction of the first axis partially overlap.

[0010] In one embodiment, the first preset angle is 5° to 45°.

[0011] In one embodiment, the first preset angle is 15°.

[0012] In one embodiment, the spraying direction of the coloring liquid is taken as the third axis, and the third axis has a second preset angle with the gravity direction, and the second preset angle is a non-zero angle, and the second preset angle is 5°~45°.

[0013] In one embodiment, the continuous conveying of the substrate along the conveying direction includes the following steps: the conveying direction and the gravity direction have a third preset angle, and the third preset angle is greater than or equal to 0° and less than 90°.

[0014] In one embodiment, the step of applying pressure to the slightly saturated substrate to allow the coloring liquid to penetrate the substrate and diffuse along the diffusion structure comprises the following steps:

[0015] The substrate in a slightly saturated state is passed through a roller provided with a diffusion structure for rolling.

[0016] In one embodiment, after the step of applying pressure to the slightly saturated substrate to allow the coloring liquid to penetrate the substrate and diffuse along the diffusion structure, the following steps are included:

[0017] The substrate that has been rolled by the roller provided with the diffusion structure is rolled by the roller.

[0018] In one embodiment, the step of applying pressure to the slightly saturated substrate to allow the coloring liquid to penetrate the substrate and diffuse along the diffusion structure comprises the following steps:

[0019] The coloring liquid sprayed on the substrate flows along the substrate to a lower position and then passes through a roller to make the coloring liquid penetrate into the substrate.

[0020] In a second aspect, the present application provides a dyeing device, comprising:

[0021] A conveying mechanism capable of continuously conveying the substrate along a conveying direction;

[0022] a spraying assembly for spraying a coloring liquid onto at least one surface of the substrate;

[0023] a control device for controlling the inkjet speed of the jetting assembly and the conveying speed of the conveying mechanism so that the coloring liquid is slightly saturated in the substrate;

[0024] at least one redistribution mechanism, the redistribution mechanism comprising a distribution assembly, the distribution assembly comprising a first distribution portion and a second distribution portion pressed against each other, and at least one of the first distribution portion and the second distribution portion having a diffusion structure for guiding the coloring liquid to diffuse on the substrate;

[0025] The substrate in a slightly saturated state with the coloring liquid is transported between the first distribution part and the second distribution part of the distribution component. Under the pressure of the distribution component, the coloring liquid penetrates into the substrate and diffuses along the diffusion structure.

[0026] In one embodiment, the spray assembly is used to atomize the coloring liquid, and the spray assembly includes at least one nozzle, and the nozzle is arranged along the first axis direction;

[0027] The nozzle is configured to form a corresponding spraying area on the substrate, with the length direction of the spraying area as the second axis, a first preset angle between the first axis and the second axis, and the projections of adjacent spraying areas in the direction of the first axis partially overlap.

[0028] In one embodiment, the first preset angle is 5° to 45°.

[0029] In one embodiment, the first preset angle is 15°.

[0030] In one embodiment, the spraying direction of the nozzle is taken as the third axis, the third axis has a second preset angle with the gravity direction, the second preset angle is a non-zero angle, and the second preset angle is 5°~45°.

[0031] In one embodiment, the conveying direction and the gravity direction have a third preset angle, and the third preset angle is greater than or equal to 0° and less than 90°.

[0032] In one embodiment, the first distribution portion and the second distribution portion are rollers, and the diffusion structure is evenly arranged around the circumferential surface of the first distribution portion and / or the second distribution portion.

[0033] In one embodiment, the surface of the first distribution portion is made of elastic material, and the surface of the second distribution portion is made of rigid material.

[0034] In one embodiment, the injection components and the redistribution mechanisms are alternately arranged.

[0035] In one embodiment, the dyeing device further comprises: a first roller mechanism, the first roller mechanism comprising a first roller portion and a second roller portion that press against each other;

[0036] After passing through the redistribution mechanism, the substrate passes between the first roller portion and the second roller portion.

[0037] In one embodiment, the dyeing device further comprises: a second roller mechanism, the second roller mechanism comprising a third roller portion and a fourth roller portion that squeeze each other;

[0038] The substrate is configured so that the coloring liquid flows downward and then passes between the third roller portion and the fourth roller portion.

[0039] In one embodiment, a coloring liquid collecting device is provided below the conveying mechanism, the spraying assembly, and the redistribution mechanism.

[0040] In a third aspect, the present application provides a dyeing control method, which is applied to the dyeing device described in any embodiment of the second aspect of the present application, and the method comprises the following steps:

[0041] Acquire target information, the target information including the weight of the substrate per meter, a preset liquid carrying rate, and a preset ratio range of the coloring liquid to the substrate in a slightly saturated state;

[0042] Calculating an optimal conveying speed and inkjet speed based on the target information so that the coloring liquid in the substrate is slightly saturated;

[0043] A preset pressure is obtained, and pressure is applied to the substrate according to the preset pressure, so that the coloring liquid penetrates into the substrate and diffuses along the diffusion structure.

[0044] In a fourth aspect, the present application provides a dyeing control device, which is applied to the dyeing equipment described in any embodiment of the second aspect of the present application, and the device includes:

[0045] a first control module, configured to control the conveying mechanism to convey the substrate along a conveying direction at an optimal conveying speed;

[0046] a second control module, configured to control the jetting assembly to jet the coloring liquid onto at least one surface of the transported substrate at a preset ink jetting speed, so that the coloring liquid in the substrate is slightly saturated;

[0047] The third control module is used to control the redistribution mechanism so that the slightly saturated colored liquid passing through between the first distribution part and the second distribution part is diffused along the diffusion structure under the mutual squeezing of the first distribution part and the second distribution part.

[0048] In a fifth aspect, the present application provides an electronic device, comprising:

[0049] processor;

[0050] a memory for storing processor-executable instructions;

[0051] Wherein, the processor is configured to execute the dyeing control method described in the embodiment of the third aspect of this application.

[0052] In a fifth aspect, the present application provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a processor, it is used to execute the dyeing control method described in the embodiment of the third aspect of the present application.

[0053] In the technical solution of the present application, the coloring liquid is distributed by spraying, and the distribution component is provided with a diffusion structure to guide the coloring liquid for redistribution. Under the action of pressure, the coloring liquid penetrates into the substrate and diffuses along the diffusion structure, thereby improving color consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0055] Figure 1 A schematic diagram of the structure of an electronic device provided in one embodiment of the present application;

[0056] Figure 2 A schematic diagram of a uniform dyeing method according to an embodiment of the present invention;

[0057] Figure 3 A schematic structural diagram of a dyeing device provided in one embodiment of the present application;

[0058] Figure 4 A schematic structural diagram of a spray assembly provided in one embodiment of the present application;

[0059] Figure 5 For this application Figure 4 A in the middle is an enlarged schematic diagram;

[0060] Figure 6 A schematic diagram of the spraying flow distribution provided in one embodiment of the present application;

[0061] Figure 7 A schematic structural diagram of a spray-painted shape provided in one embodiment of the present application;

[0062] Figure 8 A schematic structural diagram of the spraying area provided in one embodiment of the present application;

[0063] Figure 9 A schematic structural diagram of a distribution assembly provided in the first embodiment of the present application;

[0064] Figure 10 A schematic structural diagram of a distribution assembly provided in a second embodiment of the present application;

[0065] Figure 11 A schematic diagram of the spraying area of ​​the dyeing equipment provided in the first embodiment of the present application;

[0066] Figure 12 A schematic diagram of the spraying area of ​​a dyeing device provided in the second embodiment of the present application;

[0067] Figure 13 A schematic diagram of the spraying area of ​​the dyeing equipment adopted in the third embodiment of the present application;

[0068] Figure 14 A schematic structural diagram of a first roller mechanism provided in one embodiment of the present application;

[0069] Figure 15 A schematic structural diagram of a second roller mechanism provided in one embodiment of the present application;

[0070] Figure 16 A schematic flow chart of a dyeing control method provided in one embodiment of the present application;

[0071] Figure 17 This is a structural schematic diagram of a dyeing control device provided in one embodiment of the present application.

[0072] Reference numerals:

[0073] 1-electronic device; 10-bus; 11-processor; 12-memory; 2-dyeing device; 20-conveyance mechanism; 21-substrate; 22-injection assembly; 220-main frame; 2201-crossbeam; 221-nozzle; 2211-valve; 23-control device; 24-redistribution mechanism; 240-distribution assembly; 241-first distribution part; 242-second distribution part; 243-diffusion structure; 2431-concave diffusion part; 2432-bump; 2433-interlaced groove; 25-first roller mechanism; 251-first roller part; 252-second roller part; 26-second roller mechanism; 261-third roller part; 262-fourth roller part; 27-coloring liquid collecting device; 300-first control module; 400-second control module; 500-third control module. DETAILED DESCRIPTION

[0074] The terms "first", "second", "third", etc. are only used to distinguish and describe, and do not indicate the order of arrangement, nor can they be understood as indicating or implying relative importance.

[0075] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0076] In the description of this application, it should be noted that the terms "inside", "outside", "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0077] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two elements.

[0078] The technical solution of this application will be described below with reference to the accompanying drawings.

[0079] Please refer to Figure 1 , which is a structural diagram of an electronic device 1 provided in one embodiment of the present application. Figure 1 As shown, the electronic device 1 includes: at least one processor 11 and a memory 12, Figure 1 A processor 11 is used as an example. The processor 11 and the memory 12 are connected via a bus 10. The memory 12 stores instructions that can be executed by the processor 11. The instructions are executed by the processor 11 so that the electronic device 1 can execute all or part of the process of the method in the following embodiment.

[0080] The memory 12 can be implemented by any type of volatile or non-volatile memory device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0081] Specifically, the electronic device 1 in the present application can be a computer, a laptop computer, a mobile phone or other large-scale servers and other devices.

[0082] Please refer to Figure 2 The present application provides a uniform dyeing method, including: Step S210-Step S230. The uniform dyeing method provided by the present application can be used Figure 3 Dyeing equipment 2 to achieve dyeing.

[0083] Step S210: continuously conveying the substrate 21 along the conveying direction.

[0084] The conveying direction of the substrate 21 can be horizontal, vertical, or inclined. In some preferred embodiments, the conveying direction is inclined, from bottom to top.

[0085] Substrate 21 is a fabric, but is not limited to cloth. Fibers included in substrate 21 include natural fibers such as cotton, silk, linen, mohair, wool, and cashmere; regenerated fibers such as rayon and cupro; synthetic fibers such as nylon, polyester, and polyurethane; and two-ply yarns or blended yarns. Substrate 21 is made by processing the aforementioned fibers into woven or non-woven fabrics. Substrate 21 may be pretreated.

[0086] Step S220 : controlling the coloring liquid to be sprayed onto at least one surface of the substrate 21 , so that the coloring liquid is slightly saturated in the substrate 21 .

[0087] The coloring liquid can be a liquid used for coloring, such as dye liquor, ink, pigment, or coating. Dyes can include direct dyes, reactive dyes, acid dyes, acid mordant dyes, vat dyes, soluble vat dyes, sulfur dyes, sulfur-vat dyes, insoluble azo dyes, cationic dyes, disperse dyes, and the like.

[0088] The spraying may be performed by showering, spraying or other spraying methods.

[0089] The slightly saturated state can be achieved by the following method: after the substrate 21 is completely dyed using a vat dyeing method, the ratio of the coloring liquid to the fabric in the saturated state can be determined; based on the ratio of the coloring liquid to the fabric in the saturated state, a numerical range for the ratio of the coloring liquid to the fabric in the slightly saturated state can be determined. The numerical range for the slightly saturated state can be smaller than the numerical range for the saturated state. The numerical range for the slightly saturated state can be set differently depending on the material of the substrate. In other words, in the slightly saturated state, the coloring liquid has fluidity within the substrate 21 and is not fully saturated within the substrate 21. In this case, the coloring liquid can be fully utilized, reducing waste and being more environmentally friendly. In some embodiments, step S320 may include atomizing the coloring liquid, spraying the coloring liquid with a first axis as a reference, forming a corresponding spraying area on the substrate 21, with the length of the spraying area as a second axis, the first axis and the second axis forming a first predetermined angle, and adjacent spraying areas partially overlapping in the direction of the first axis.

[0090] The coloring liquid is processed to form particles, which are then sprayed onto at least one surface of substrate 21, forming a corresponding landing area on substrate 21. The landing area can be understood as the range or area over which the atomized coloring liquid is distributed on substrate 21. For example, the coloring liquid can be sprayed using a spray assembly 22, such as a nozzle or other device, arranged along a first axis. Pressure control of the spray assembly 22 is employed to atomize the coloring liquid, forming a landing area on substrate 21. The length of the landing area serves as the second axis, and the first and second axes form a first predetermined angle, such that the projections of adjacent landing areas along the first axis partially overlap.

[0091] In one embodiment, the first preset angle is 5° to 45°, and preferably the first preset angle is 15°.

[0092] The direction of the coloring liquid spraying serves as the third axis, and the third axis forms a second predetermined angle with the gravity direction, wherein the second predetermined angle is non-zero. When conveying substrate 21, conveying mechanism 20 conveys substrate 21 at an angle of 5° to 45° with the direction of the coloring liquid spraying. This allows the coloring liquid to be slightly saturated and, under the action of gravity, flow and penetrate toward the feed end.

[0093] Furthermore, the conveying direction of the conveying mechanism 20 has a third preset angle with the gravity direction, and the third preset angle is greater than or equal to 0° and less than 90°.

[0094] In some embodiments, step S320 may include: passing the slightly saturated substrate 21 through a roller provided with a diffusion structure 243 .

[0095] In order to allow the coloring liquid to fully penetrate into the substrate 21, in this embodiment, a roller with a diffusion structure 243 is provided to further press the substrate 21 with the coloring liquid in a slightly saturated state on the surface, so that the coloring liquid can diffuse along the diffusion structure 243 under the pressure of the roller and gradually penetrate into the surface of the substrate 21.

[0096] Furthermore, as mentioned above, when the conveying direction is inclined from top to bottom, the coloring liquid on the substrate 21 will flow to the lower part of the substrate 21 under the action of gravity. Under the rolling action of the roller, the coloring liquid can diffuse along the diffusion structure 243 and penetrate into the substrate 21.

[0097] Step S230 : applying pressure to the substrate 21 in a slightly saturated state, so that the coloring liquid penetrates into the substrate 21 and diffuses along the diffusion structure 243 .

[0098] In this step, to further ensure the coloring liquid's full penetration, a roller or other structure may be used to apply a certain amount of pressure to the substrate 21. This allows the coloring liquid to diffuse more quickly and fully under the pressure. Furthermore, a diffusion structure 243, designed to guide the distribution and diffusion of the coloring liquid, may be provided on the surface of the roller to further improve the uniformity of the coloring liquid's penetration.

[0099] Please refer to Figure 3 , which is a structural diagram of a dyeing device 2 provided in an embodiment of the present application. The dyeing device 2 includes: a conveying mechanism 20, a spraying assembly 22, a control device 23 and at least one redistribution mechanism 24.

[0100] The conveying mechanism 20 can continuously convey the substrate 21 along a conveying direction. The conveying direction of the conveying mechanism 20 is the direction in which the substrate 21 is moving. The conveying mechanism 20 can be in the form of a combination of a drive pulley, a guide belt, and rollers, and conveys the substrate 21 to the injection assembly 22 at a predetermined speed. The conveying speed of the conveying mechanism 20 can be set according to actual needs, for example, to provide a constant speed throughout, to accelerate the conveying followed by a constant speed, or to decelerate the conveying followed by a constant speed. In this embodiment, the conveying mechanism 20 uses a roller combination to convey the substrate 21.

[0101] Please refer to Figure 4The spray assemblies 22 are used to spray the coloring liquid onto at least one surface of the substrate 21. The spray assemblies 22 are positioned in an area corresponding to the area where the coloring liquid adheres to the substrate 21. Optionally, the spray assemblies 22 are spaced apart along the first axis and mounted on the main frame 220. The main frame 220 is a steel structure, which provides greater stability. The steel structure of the main frame 220 includes a crossbeam 2201, which extends along the first axis. The spray assemblies 22 are mounted on the crossbeam 2201 at intervals along the first axis. In this embodiment, since the spray assemblies 22 are all mounted on the same crossbeam 2201 along the same first axis, the spray distances between the nozzles 221 of the spray assemblies 22 and the height of the substrate 21 are all the same. The spray assemblies 22 are evenly spaced on the crossbeam 2201 of the main frame 220, ensuring that the spray spacing between the spray assemblies 22 is uniform. The number of spray assemblies 22 can be set based on the width of the substrate 21.

[0102] Please refer to Figure 5 A valve 2211 is provided on the nozzle 221 , and the valve 2211 is connected to the control device 23 , and the control device 23 is used to control the opening and closing of the valve 2211 .

[0103] Because the control device 23 is electrically connected to each valve 2211, a pre-written program enables the control device 23 to individually control the opening and closing of each valve 2211. This allows selectively opening and closing a portion of the nozzles 221, while simultaneously closing a portion of the nozzles 221, as needed, to achieve individual quantitative control of the nozzles 221. In this embodiment, by individually controlling the quantitative control of each nozzle 221, the liquid loading rate of the substrate 21 is kept at a slightly saturated state.

[0104] The control device 23 is configured to control or regulate the rate at which a predetermined volume or amount of coloring liquid is ejected from each nozzle 221 onto the substrate 21. This is accomplished by opening and closing the valve 2211 at a specific pulse rate or frequency, which is selected as a function of the desired amount of coloring liquid and the speed at which the substrate 21 passes through the ejection assembly 22. The control device 23 is configured to pulse at such a rate that the valves 2211 on the nozzles 221 open and close in a synchronized manner. In other embodiments, when flow control is not required, the coloring liquid can be ejected in a continuous flow without being constrained by pulses.

[0105] The nozzle 221 is connected to the material cylinder through a liquid inlet pipe. The coloring liquid flows out of the material cylinder and enters the nozzle 221 through the liquid inlet pipe. The coloring liquid in the material cylinder can be extracted into the liquid inlet pipe by power equipment such as a vacuum pump.

[0106] The spray assembly 22 adopts the hydraulic spray principle, and can also adopt the gas-liquid mixed spray principle to make the coloring liquid into micro-particles. According to the selected coloring liquid or the application environment, the material can be ceramic, metal or resin.

[0107] Under standard pressure, the spray assembly 22 can obtain the set spray angle, spray amount, spray shape and flow distribution. Figure 6 The spray angle refers to the angle of the dispersion of the micronized coloring liquid sprayed from the nozzle 221. The spray shape refers to the cross-sectional shape of the spray cross section. The flow distribution refers to the distribution of the spray volume across the width of the nozzle 221. The spray volume is proportional to the spray pressure.

[0108] Please refer to Figure 7 The spraying shape can be dot-shaped, line-shaped, fan-shaped, circular, annular, etc. The formation of the spraying shape is related to the shape of the nozzle 221, the spraying angle, etc. For example, when the nozzle 221 is shaped as an elongated opening, the spraying shape of the nozzle 221 onto the substrate 21 can be fan-shaped.

[0109] The nozzles 221 are configured to form corresponding spraying areas on the substrate 21 . The length direction of the spraying areas has a first preset angle with the first axis, and projections of adjacent spraying areas in the direction of the first axis partially overlap.

[0110] If the micro-coloring liquid is concentrated in the center of the spraying area and dispersed around it, the spraying area sprayed by the nozzle 221 on the substrate 21 will be fan-shaped (e.g. Figure 7 As shown in c), it is impossible to achieve the purpose of uniform spraying onto the substrate 21. For this purpose, please refer to Figure 8 In this embodiment, the nozzle 221 is set so that the length direction of the spraying area has a first preset angle α with the first axis, and the projections of adjacent spraying areas in the direction of the first axis partially overlap, such as Figure 8 Shown in the shaded area.

[0111] Optionally, when the first preset angle α is 5° to 45°, the micronized coloring liquid will not gather in the middle and around the spraying area sprayed by the nozzle 221 , and the spraying area can be evenly distributed on the substrate 21 .

[0112] like Figure 3 and Figure 4As shown, the spray direction of the nozzle 221 is the third axis, and the third axis forms a second preset angle with the direction of gravity, where the second preset angle is non-zero. The nozzle 221 sprays from top to bottom, and the second preset angle β is defined as the angle between the spray direction of the nozzle 221 and the direction of gravity, where the direction of gravity can be understood as perpendicular to the ground. The second preset angle is the same for each nozzle 221. If the second preset angle β is too large, the impact force of the nozzle 221 spraying onto the substrate 21 is too large, and the coloring liquid is likely to splash. If the second preset angle β is too small, the coloring liquid is not fully sprayed onto the substrate 21.

[0113] Optionally, in this embodiment, the first preset angle α is 5° to 45°, and the second preset angle β is 5° to 45°. In some preferred embodiments, the first preset angle α is 15°, and the second preset angle β is 15°. The spraying area formed by the nozzle 221 spraying the coloring liquid on the substrate 21 can be referred to Figure 8 shown.

[0114] Optionally, the conveying direction of the conveying mechanism 20 has a third preset angle with the gravity direction, the third preset angle is γ, and the third preset angle γ is greater than 0° and less than 90°. (Please refer to Figure 11-13 γ is marked in the figure).

[0115] The control device 23 is also configured to control the inkjet speed of the jetting assembly 22 and the delivery speed of the conveying mechanism 20, so that the coloring liquid is slightly saturated in the substrate 21. Optionally, the control device 23 may be an electrical cabinet consisting of a power supply unit, a human-machine interface (HMI), a communication unit, a core processor, and a control unit. The power supply unit may be an external power supply or a battery. The HMI may be a computer input / output device such as a display screen, keyboard, touch screen, buttons, knobs, speakers, and LEDs, used to input commands and read information, thereby enabling human-computer interaction and information exchange. The communication unit may be a transceiver, and the control unit may be a microcontroller unit (MCU). The control device 23 receives commands and data through the HMI and transmits them to the core processor. It can also send messages through the HMI to alert the operator. The control device 23 processes information fed back by the HMI and the communication unit via the core processor and controls the jetting assembly 22 and conveying mechanism 20 through the control unit.

[0116] In other embodiments, the control device 23 may be connected to the electronic device 1 via a wired or wireless connection. The electronic device 1 may send a control signal to the control device 23. The control device 23, in response to the command from the electronic device 1, controls the inkjet speed of the jet assembly 22 and the conveying speed of the conveying mechanism 20. The inkjet speed and the conveying speed may be pre-programmed into the core processor of the control device 23.

[0117] Please refer to Figure 3 、 Figure 9 Figure 10 The redistribution mechanism 24 includes a distribution assembly 240, which comprises a first distribution portion 241 and a second distribution portion 242 that press against each other. At least one of the first distribution portion 241 and the second distribution portion 242 includes a diffusion structure 243 that guides the coloring liquid to diffuse on the substrate 21. The substrate 21, slightly saturated with the coloring liquid, is fed between the first distribution portion 241 and the second distribution portion 242 of the distribution assembly 240. Under the pressure of the distribution assembly 240, the coloring liquid permeates the substrate 21 and diffuses along the diffusion structure 243.

[0118] The distribution assembly 240 can be driven to rotate by a motor drive, a gear drive, or a pulley drive.

[0119] Optionally, the first distribution portion 241 and the second distribution portion 242 are rollers, and the diffusion structure 243 is uniformly arranged around the circumferential surface of the first distribution portion 241 and the second distribution portion 242, or the diffusion structure 243 is uniformly arranged only around the circumferential surface of the first distribution portion 241, or the diffusion structure 243 is uniformly arranged only around the circumferential surface of the second distribution portion 242.

[0120] Optionally, the diffusion structure 243 has a continuous concave diffusion portion 2431 , or may have a plurality of mutually independent concave diffusion portions 2431 .

[0121] Furthermore, the surface of the first distribution section 241 is made of an elastic material, while the surface of the second distribution section 242 is made of a rigid material. The interaction of the rigid and elastic materials ensures that the first and second distribution sections 241, 242 fully contact their respective substrates under pressure, effectively squeezing the substrates. The diffusion structure 243 can be provided in three configurations: on the surface of the first distribution section 241; on the surface of the second distribution section 242; or on both the first and second distribution sections 241, 242. For example, the surface of the first distribution section 241 is made of rubber, while the surface of the second distribution section 242 is made of leather-grained steel. As the substrate 21 passes between the first and second distribution sections 241, 242, they squeeze each other. The coloring liquid diffuses onto the substrate 21 along the concave diffusion section extending along the length of the second distribution section 242. Under pressure from the surface of the first distribution section 241, the coloring liquid is redistributed toward the substrate 21, ensuring full penetration of the coloring liquid.

[0122] In other embodiments, please refer to Figure 10 The diffusion structure 243 may also be a plurality of protrusions 2432 and interdigitated grooves 2433 formed independently between the protrusions 2432. The diffusion structure 243 may be provided on the surface of the second distribution portion 242. The substrate 21 is diverted from the protrusions 2432 on the surfaces of the first distribution portion 241 and the second distribution portion 242. Under the diversion effect of the protrusions 2432, the coloring liquid diffuses and spreads on the substrate 21 along the interdigitated grooves 2433. Under the pressure of the surface of the first distribution portion 241, the coloring liquid is redistributed toward the substrate 21, thereby ensuring sufficient penetration of the coloring liquid.

[0123] In the above embodiment, the control device 23 controls the conveying speed of the conveyor mechanism 20, causing the substrate 21 to first pass through the jetting assembly 22. The control device 23 then controls the inkjet speed of the nozzles 221 on the jetting assembly 22, causing the coloring liquid to be sprayed onto the surface of the substrate 21. The coloring liquid on the substrate 21 is slightly saturated and, under the action of gravity, permeates the substrate 21 along the inclined direction of travel. As the conveyor mechanism 20 continuously conveys the substrate 21, after passing through the jetting assembly 22, the substrate 21 passes through the redistribution mechanism 24, passing through the first distribution section 241 and the second distribution section 242. The coloring liquid continues to flow along the inclined substrate 21 and, under the diffusion effect of the diffusion structure 243 on the surface of the second distribution section 242, continues to flow and permeate the substrate 21, achieving redistribution of the coloring liquid.

[0124] In the above embodiment, by providing a spray assembly 22 and a redistribution mechanism 24, the coloring liquid is first sprayed and then pressed, so that the coloring liquid can be redistributed, so that the coloring liquid can fully penetrate into the substrate 21, thereby improving the color consistency of the substrate 21.

[0125] In other embodiments, the spray assemblies 22 and the redistribution mechanisms 24 may be arranged alternately. Specifically, by arranging the spray assemblies 22, the redistribution mechanisms 24, the spray assemblies 22, and the redistribution mechanisms 24 alternately, the conveying mechanism 20 conveys the substrate 21 continuously through the alternately arranged spray assemblies 22 and the redistribution mechanisms 24. The substrate 21 undergoes multiple spraying and rolling processes, allowing the coloring liquid to fully penetrate the substrate 21, thereby improving the color consistency of the substrate 21.

[0126] Please refer to Figure 11 and Figure 14 The dyeing device 2 also includes: a first roller mechanism 25, the first roller mechanism 25 includes a first roller portion 251 and a second roller portion 252 that squeeze each other, wherein the substrate 21 passes between the first roller portion 251 and the second roller portion 252 after passing through the redistribution mechanism 24.

[0127] The first roller portion 251 and the second roller portion 252 can be driven to rotate by a motor, a gear, or a pulley.

[0128] Optionally, the first roller portion 251 and the second roller portion 252 serve as pressure rollers. After the substrate 21 is sprayed with the coloring liquid by the spray assembly 22, it passes through the redistribution mechanism 24. Under the pressure of the distribution assembly 240 of the redistribution mechanism 24 and its own gravity, the coloring liquid diffuses along the diffusion structure 243 on the second distribution portion 242, thereby redistributing the coloring liquid across the substrate 21. After continuous conveyance by the conveying mechanism 20, the substrate 21 passes through the first roller mechanism 25, the first roller portion 251, and the second roller portion 252. The first roller portion 251 and the second roller portion 252 squeeze the substrate 21, allowing the coloring liquid to further penetrate the substrate 21.

[0129] In this embodiment, by providing a first roller mechanism 25 after the redistribution mechanism 24, the pressure of the first roller mechanism 25 further uniformly presses excess coloring liquid on the substrate 21 into the substrate 21, further improving the uniformity of coloring liquid penetration. Furthermore, by forcing excess coloring liquid into the substrate 21, the substrate 21 remains relatively dry without becoming excessively wet. If the coloring liquid on the substrate 21 does not fully penetrate the substrate 21, resulting in a high degree of wetness, it will affect the subsequent drying process, resulting in a longer drying time and reduced process efficiency. Furthermore, the provision of the first roller mechanism 25 significantly increases the utilization rate of the coloring liquid, avoiding excessive waste, and achieving a green, energy-saving, and environmentally friendly approach.

[0130] In other embodiments, the first roller portion 251 and the second roller portion 252 may also be arranged in a manner similar to the embodiment of the present invention. Figure 9 、 Figure 10In this manner, a diffusion structure 243 for guiding the diffusion of the coloring liquid is provided on one of the surfaces.

[0131] Please refer to Figure 12 and Figure 15 The dyeing device 2 also includes: a second roller mechanism 26, the second roller mechanism 26 includes a third roller portion 261 and a fourth roller portion 262 that squeeze each other, wherein the substrate 21 is configured to allow the coloring liquid to flow downward and then pass between the third roller portion 261 and the fourth roller portion 262.

[0132] The third roller portion 261 and the fourth roller portion 262 can be driven to rotate by a motor, a gear, or a pulley.

[0133] Optionally, the third roller portion 261 and the fourth roller portion 262 serve as pressure rollers. Because the conveying direction of the conveying mechanism 20 is at a third predetermined angle greater than or equal to 0° and less than 90° relative to the direction of gravity, the conveying mechanism 20 tilts the substrate 21 downward when conveying the substrate 21, configuring the substrate 21 so that the coloring liquid on the substrate 21 flows downward under the action of gravity. This flowing coloring liquid can be pressured into the substrate 21. Considering the rotational direction of the second roller mechanism 26, a pool of coloring liquid may form between the feed end and the third roller portion 261 and the fourth roller portion 262. The rotating third roller portion 261 and the fourth roller portion 262 draw the coloring liquid toward the feed end of the substrate 21. The mutual compression between the third roller portion 261 and the fourth roller portion 262 causes the coloring liquid to further flow and penetrate the substrate 21.

[0134] exist Figure 11 、 Figure 12 In the embodiment shown, the nozzles 221 are mounted on the main frame 220 along the first axis in the same spraying direction. In other embodiments, adjacent nozzles 221 may be arranged in opposite directions. For example, see Figure 13 When there are 13 spray assemblies 22, the first nozzle 221, the third nozzle 221, the fifth nozzle 221, the seventh nozzle 221, the ninth nozzle 221, the eleventh nozzle 221, and the thirteenth nozzle 221 are oriented in the first direction, and the second nozzle 221, the fourth nozzle 221, the sixth nozzle 221, the eighth nozzle 221, the tenth nozzle 221, and the twelfth nozzle 221 are oriented in the second direction. The first direction and the second direction are opposite to each other, and all the nozzles 221 spray at a second preset angle β of 5° to 45°. When the control device 23 controls the 13 nozzles 221 to spray the coloring liquid, the sprayed coloring liquid penetrates along the forward direction of the inclined substrate 21 under the action of gravity. The spraying area formed by the spraying of the coloring liquid on the substrate 21 is a centrally symmetrical linear shape, and the projections of adjacent spraying areas in the direction of the first axis partially overlap.

[0135] In some embodiments, please refer to Figure 11-13 A coloring liquid collecting device 27 is provided below the conveying mechanism 20, the spraying assembly 22, and the redistribution mechanism 24. The coloring liquid collecting device 27 is used to collect the coloring liquid that splashes onto the substrate 21 during the spraying process and collect or recycle the splashed coloring liquid to avoid waste.

[0136] The coloring liquid collecting device 27 can be a collection pool, a collection tank, or a collection platform. The structure of the coloring liquid collecting device 27 includes, but is not limited to, a rectangular structure, a circular structure, or a polygonal structure. The structure of the coloring liquid collecting device 27 can be designed according to actual needs.

[0137] In some embodiments, the colored liquid collection device 27 is provided with a drain port, which can be connected to a treatment tank via a pipeline. The colored liquid collected in the colored liquid collection device 27 can flow through the pipeline into the treatment tank for subsequent processing, such as waste liquid treatment, recycling, etc. The provision of the drain port also allows for timely guidance and clearing of spilled colored liquid, preventing excessive accumulation of colored liquid in the colored liquid collection device 27. The drain port can be opened and closed by a valve assembly, which can be electrically connected to the control device 23.

[0138] Please refer to Figure 16 , which is a flow chart of a dyeing control method provided in one embodiment of the present application, the method is applied to Figure 2 The dyeing device 2 shown in the figure uses automated control to make the dyeing process of the substrate 21 more efficient, and specifically includes steps S310 to S330.

[0139] Step S310: acquiring target information, the target information including the weight per meter of the substrate, a preset liquid carrying rate, and a preset ratio range of the coloring liquid to the substrate 21 in a slightly saturated state.

[0140] The meter weight of the substrate refers to the weight of the substrate 21 per meter. The preset liquid carrying rate is the liquid carrying rate of the substrate 21 mentioned above, which is 59%-80%, or the average inkjet amount is 50%-80% of the fabric weight.

[0141] Step S320 : Calculating the optimal conveying speed and inkjet speed according to the target information so that the coloring liquid in the substrate 21 is slightly saturated.

[0142] After determining target information such as the substrate weight per meter, the preset liquid pick-up rate, and the preset ratio range of the coloring liquid to substrate 21 in a slightly saturated state, the optimal conveying speed of the conveying mechanism 20 conveying the substrate 21 and the inkjet speed of the jetting assembly 22 can be calculated according to a preset calculation formula. The preset calculation formula can be an industry-standard empirical formula and is pre-programmed into the core processor of the control device 23.

[0143] The preset ratio range of the coloring liquid to the substrate 21 in the slightly saturated state can be set differently according to the material of the substrate. The set numerical range is smaller than the ratio of the coloring liquid to the substrate 21 in the saturated state.

[0144] The conveying mechanism 20 conveys the substrate 21 along the conveying direction at an optimal conveying speed in response to the control of the control device 23 .

[0145] In this step, the operator selects a pre-set optimal conveying speed of the conveying mechanism 20 through the human-machine interaction interface (such as a touch screen) on the operation control device 23. The control device 23 receives the operation instruction information of the conveying mechanism 20 triggered by the operator. The conveying mechanism 20 responds to the control instruction "Conveyor mechanism 20 starts, moves at a uniform speed at a conveying rate of 1 m / min" issued by the control device 23. The conveying mechanism 20 starts working and conveys the substrate 21 along the conveying direction of the substrate 21 at a conveying speed of 1 m / min.

[0146] The distance between the conveying mechanism 20 and the injection assembly 22 can be pre-written into the core processor of the control device 23. Based on the distance between the conveying mechanism 20 and the injection assembly 22 and the pre-set conveying speed, the time required for the conveying mechanism 20 to transport the forward end of the substrate 21 from the initial position to the position directly below the injection assembly 22 can be pre-calculated through existing software or programs, so that the control device 23 can reasonably and accurately control the injection assembly 22 to spray the coloring liquid based on this time.

[0147] The operator selects a pre-set inkjet speed for the jet assembly 22 via a human-machine interface (e.g., a touchscreen) on the control device 23. When the conveyor mechanism 20 delivers ink to the jet assembly 22 at a speed of 1 m / min, the control device 23 pre-calculates the time required for the forward end of the substrate 21 to enter directly below the jet assembly 22. The control device 23 receives the operator's triggering instruction for the jet assembly 22. In response to the control instruction issued by the control device 23, "Jet assembly 22, start, spray coloring liquid at a speed of 20 cm / s," the jet assembly 22 starts operating and sprays the coloring liquid onto the substrate 21 at a speed of 20 cm / s. When spraying the coloring liquid, the spraying time for each layer can be pre-set, for example, using a pulsed spraying pattern with a spraying interval of 1 second. During the spraying of the coloring liquid, the control device 23 temporarily stops the conveyor mechanism 20. The pause time for the conveyor mechanism 20 can be adjusted based on the required spraying time, for example, 15-30 seconds. Thus, the control device 23 can control the conveyor mechanism 20 to pause conveying the substrate 21 according to a pre-set period.

[0148] When the conveying mechanism 20 pauses, the control device 23 controls the nozzle 221 of the spray assembly 22 to open, and the nozzle 221 sprays the coloring liquid toward the substrate 21 at a second preset angle β of 5° to 45°. The conveying direction of the conveying mechanism 20 is 5° to 45° away from the second preset angle. The coloring liquid is in a slightly saturated state and flows and penetrates along the forward direction of the substrate 21 under the action of gravity.

[0149] Step S330 : obtaining a preset pressure, and applying pressure to the substrate 21 according to the preset pressure, so that the coloring liquid penetrates into the substrate 21 and diffuses along the diffusion structure 243 .

[0150] The preset pressure can be pre-written into the core processor of the control device 23. The redistribution mechanism 24 responds to the control of the control device 23 and applies pressure to the substrate 21 according to the preset pressure, so that the coloring liquid in a slightly saturated state passing through the first distribution part 241 and the second distribution part 242 is diffused along the diffusion structure 243 under the mutual squeezing of the first distribution part 241 and the second distribution part 242.

[0151] Similarly, the distance between the injection assembly 22 and the redistribution mechanism 24 can be pre-written into the core processor of the control device 23. Based on the distance between the injection assembly 22 and the redistribution mechanism 24 and the optimal conveying speed, the time required for the conveying mechanism 20 to move the forward end of the substrate 21 away from the injection assembly 22 and into the distribution assembly 240 of the redistribution mechanism 24 can be pre-calculated through existing software or programs, so that the control device 23 can reasonably and accurately control the redistribution mechanism 24 to open and the distribution assembly 240 to rotate based on this time.

[0152] The operator selects the start option of the redistribution mechanism 24 through the human-machine interaction interface (such as a touch screen) on the control device 23. The conveying mechanism 20 conveys to the redistribution mechanism 24 at a conveying speed of 1 m / min. The control device 23 calculates the time required for the forward end of the substrate 21 to enter the distribution component 240. The control device 23 receives the operation instruction information of the redistribution mechanism 24 triggered by the operator. The redistribution mechanism 24 responds to the "redistribution mechanism 24 start, distribution component 240 rotate" control instruction issued by the control device 23, and the redistribution mechanism 24 starts working and the distribution component 240 rotates.

[0153] The substrate 21 passes through the first distribution portion 241 and the second distribution portion 242. The first distribution portion 241 and the second distribution portion 242 squeeze each other. Under the action of gravity, the coloring liquid diffuses on the substrate 21 along the forward direction of the substrate 21 and along the diffusion structure 243 on the second distribution portion 242. Under the pressure of the surface of the first distribution portion 241, the coloring liquid is redistributed toward the substrate 21, thereby ensuring that the coloring liquid fully penetrates.

[0154] Through the above-mentioned automated control method, the dyeing equipment 2 of the present application can improve the dyeing efficiency, enable the coloring liquid to fully penetrate into the substrate 21, and improve the color consistency.

[0155] Please refer to Figure 17 , which is a structural diagram of a dyeing control device provided in an embodiment of the present application. The dyeing control device includes: a first control module 300, a second control module 400, and a third control module 500.

[0156] The first control module 300 is used to control the conveying mechanism 20 to convey the substrate 21 along the conveying direction at an optimal conveying speed;

[0157] The second control module 400 is used to control the jetting assembly 22 to jet the coloring liquid onto at least one surface of the conveyed substrate 21 at a preset ink jetting speed, so that the coloring liquid in the substrate 21 is slightly saturated;

[0158] The third control module 500 is used to control the redistribution mechanism 24 so that the slightly saturated colored liquid passing through the first distribution portion 241 and the second distribution portion 242 is diffused along the diffusion structure 243 under the mutual compression of the first distribution portion 241 and the second distribution portion 242 .

[0159] The implementation process of the functions and effects of each module in the above device is specifically described in the implementation process of the corresponding steps above, which will not be repeated here.

[0160] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0161] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A uniform dyeing method, characterized in that: The steps include: Continuously conveying the substrate along the conveying direction; Controlling the spraying of the coloring liquid onto at least one surface of the substrate so that the coloring liquid is slightly saturated in the substrate; Applying pressure to the slightly saturated substrate to allow the coloring liquid to penetrate the substrate and diffuse along the diffusion structure; The numerical range in the slightly saturated state is smaller than the numerical range in the saturated state; in the slightly saturated state, the coloring liquid has fluidity in the substrate; The controlling the coloring liquid to be sprayed onto at least one surface of the substrate so that the coloring liquid is in a slightly saturated state in the substrate comprises the following steps: The coloring liquid is atomized and sprayed with a first axis as a reference to form a corresponding spraying area on the substrate. The length direction of the spraying area is used as a second axis. There is a first preset angle between the first axis and the second axis, and the projections of adjacent spraying areas in the direction of the first axis partially overlap.

2. The uniform dyeing method according to claim 1, wherein The first preset angle is 5°~45°.

3. The uniform dyeing method according to claim 2, wherein The first preset angle is 15°.

4. The uniform dyeing method according to claim 1, wherein The spraying direction of the coloring liquid is taken as the third axis, and the third axis has a second preset angle with the gravity direction. The second preset angle is a non-zero angle, and the second preset angle is 5°~45°.

5. The uniform dyeing method according to claim 1, characterized in that The continuous conveying of the substrate along the conveying direction comprises the following steps: the conveying direction and the gravity direction have a third preset angle, and the third preset angle is greater than or equal to 0° and less than 90°.

6. The uniform dyeing method according to claim 1, characterized in that: The method of subjecting the slightly saturated substrate to pressure so that the coloring liquid penetrates the substrate and diffuses along the diffusion structure comprises the following steps: The substrate in a slightly saturated state is passed through a roller provided with a diffusion structure for rolling.

7. The uniform dyeing method according to claim 1, characterized in that: After the step of applying pressure to the substrate in a slightly saturated state so that the coloring liquid penetrates the substrate and the coloring liquid diffuses along the diffusion structure, the following steps are included: The substrate that has been rolled by the roller provided with the diffusion structure is rolled by the roller.

8. The uniform dyeing method according to claim 1, characterized in that The method of subjecting the slightly saturated substrate to pressure so that the coloring liquid penetrates the substrate and diffuses along the diffusion structure comprises the following steps: The coloring liquid sprayed on the substrate flows along the substrate to a lower position and then passes through a roller to make the coloring liquid penetrate into the substrate.

9. A dyeing device, characterized in that: include: A conveying mechanism capable of continuously conveying the substrate along a conveying direction; a spraying assembly for spraying a coloring liquid onto at least one surface of the substrate; a control device for controlling the inkjet speed of the jetting assembly and the conveying speed of the conveying mechanism so that the coloring liquid is slightly saturated in the substrate; at least one redistribution mechanism, the redistribution mechanism comprising a distribution assembly, the distribution assembly comprising a first distribution portion and a second distribution portion pressed against each other, and at least one of the first distribution portion and the second distribution portion having a diffusion structure for guiding the coloring liquid to diffuse on the substrate; The substrate, which is slightly saturated with the coloring liquid, is transported between the first distribution part and the second distribution part of the distribution component. Under the pressure of the distribution component, the coloring liquid penetrates into the substrate and diffuses along the diffusion structure. The numerical range in the slightly saturated state is smaller than the numerical range in the saturated state; in the slightly saturated state, the coloring liquid has fluidity in the substrate; The spray assembly is used to atomize the coloring liquid, and the spray assembly includes at least one nozzle, and the nozzle is arranged along the first axis direction; The nozzle is configured to form a corresponding spraying area on the substrate, with the length direction of the spraying area as the second axis, a first preset angle between the first axis and the second axis, and the projections of adjacent spraying areas in the direction of the first axis partially overlap.

10. The dyeing equipment according to claim 9, characterized in that The first preset angle is 5°~45°.

11. The dyeing equipment according to claim 10, characterized in that The first preset angle is 15°.

12. The dyeing equipment according to claim 9, characterized in that The spraying direction of the nozzle is taken as the third axis, and the third axis has a second preset angle with the gravity direction. The second preset angle is a non-zero angle, and the second preset angle is 5°~45°.

13. The dyeing equipment according to claim 9, characterized in that The conveying direction and the gravity direction have a third preset angle, and the third preset angle is greater than or equal to 0° and less than 90°.

14. The dyeing equipment according to claim 9, characterized in that The first distribution portion and the second distribution portion are rollers, and the diffusion structure is evenly arranged around a circumferential surface of the first distribution portion and / or the second distribution portion.

15. The dyeing equipment according to claim 14, characterized in that The surface of the first distribution portion is made of elastic material, and the surface of the second distribution portion is made of rigid material.

16. The dyeing equipment according to claim 9, characterized in that The dyeing device further comprises: a first roller mechanism, the first roller mechanism comprising a first roller portion and a second roller portion that press against each other; After passing through the redistribution mechanism, the substrate passes between the first roller portion and the second roller portion.

17. The dyeing equipment according to claim 9, characterized in that The dyeing device further comprises: a second roller mechanism, wherein the second roller mechanism comprises a third roller portion and a fourth roller portion that are pressed against each other; The substrate is configured so that the coloring liquid flows downward and then passes between the third roller portion and the fourth roller portion.

18. The dyeing equipment according to claim 9, characterized in that A coloring liquid collecting device is provided below the conveying mechanism, the spraying assembly and the redistribution mechanism.

19. A dyeing control method, characterized in that: Applied to the dyeing apparatus according to any one of claims 9 to 18, the method comprises the following steps: Acquire target information, the target information including the weight of the substrate per meter, a preset liquid carrying rate, and a preset ratio range of the coloring liquid to the substrate in a slightly saturated state; Calculating an optimal conveying speed and inkjet speed based on the target information so that the coloring liquid in the substrate is slightly saturated; A preset pressure is obtained, and pressure is applied to the substrate according to the preset pressure, so that the coloring liquid penetrates into the substrate and diffuses along the diffusion structure.

20. A dyeing control device, characterized in that: Applicable to the dyeing equipment according to any one of claims 9 to 18, the device comprising: a first control module, configured to control the conveying mechanism to convey the substrate along a conveying direction at an optimal conveying speed; a second control module, configured to control the jetting assembly to jet the coloring liquid onto at least one surface of the transported substrate at a preset ink jetting speed, so that the coloring liquid in the substrate is slightly saturated; The third control module is used to control the redistribution mechanism so that the slightly saturated colored liquid passing through between the first distribution part and the second distribution part is diffused along the diffusion structure under the mutual squeezing of the first distribution part and the second distribution part.

21. An electronic device, characterized in that: The electronic device comprises: processor; a memory for storing processor-executable instructions; Wherein, the processor is configured to execute the dyeing control method according to claim 19.

22. A computer-readable storage medium, characterized in that The storage medium stores a computer program, and when the computer program is executed by the processor, it is used to execute the dyeing control method according to claim 19.

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