Dye dissolving system, dyeing system and dyeing method
By setting up baffles, dye layers, and separators inside the dyeing kettle, combined with a flow direction maintaining mechanism, the problem of uneven dye dissolution in the circulating dyeing system was solved, achieving uniform dye dissolution and improved dyeing uniformity.
Patent Information
- Application Number
- CN202610376104.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-25
- Publication Date
- 2026-05-08
AI Technical Summary
In a circulating dyeing system, the flow direction of the medium in the dye tank is different during forward and reverse circulation, resulting in uneven dye dissolution and color difference between the inside and outside.
The dye reactor employs a structure consisting of baffles, dye layers, and separators within the dye reactor, combined with a flow direction maintenance mechanism in the external circulation pipeline. This ensures that the medium always enters from the inlet and exits from the outlet during both forward and reverse circulation, achieving uniform dissolution of the dye through the baffles, dye layers, and separators.
It achieves consistent dye dissolution in both forward and reverse circulation processes, reduces internal and external color differences, improves dyeing uniformity, reduces the risk of clogging, and increases dissolution efficiency.
Smart Images
Figure CN121992593A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of fabric dyeing technology, and in particular to a dye dissolving system, a dyeing system, and a dyeing method. Background Technology
[0002] The dyeing system includes a dyeing kettle and a dyeing tank. The dyeing kettle contains dye. During dyeing, the dyeing medium flows through the dyeing kettle, dissolving the dye, and then enters the dyeing tank through pipes for dyeing. In specific processes such as warp beam dyeing and package dyeing, to achieve more uniform dyeing, the dyeing medium needs to circulate through the fabric in both forward and reverse cycles. This means the dyeing medium penetrates the fabric multiple times from the inside out and from the outside in, reducing color differences between the inside and outside. However, in the dyeing kettle of the circulating dyeing system, the medium enters from the bottom and exits from the top during forward circulation, while during reverse circulation, the medium enters from the top and exits from the bottom. Therefore, the different flow directions of the medium within the dyeing kettle during forward and reverse circulation lead to different dye dissolution effects, resulting in uneven dyeing during both cycles. Summary of the Invention
[0003] In a first aspect, the present invention provides a dye dissolving system, comprising: The dyeing kettle contains a partition, a dye layer, and a separator arranged sequentially inside. The dyeing kettle also has a media inlet and a media outlet. The partition, dye layer, and separator are located between the media inlet and the media outlet, with the media inlet located close to the partition and the media outlet located close to the separator. An external circulation line is connected to the medium inlet and medium outlet of the dye reactor. The external circulation line includes a flow direction maintaining mechanism configured to respond to changes in the flow direction of the medium in the external circulation line so that the medium entering the dye reactor always enters from the medium inlet and flows out from the medium outlet.
[0004] In an optional embodiment, the dyeing reactor includes a first medium inlet, a second medium inlet, a first medium outlet, and a second medium outlet, with an external circulation pipeline simultaneously connected to the first medium inlet, the second medium inlet, the first medium outlet, and the second medium outlet.
[0005] In an optional embodiment, the flow direction maintaining mechanism includes a one-way flow device, and the first medium inlet, the second medium inlet, the first medium outlet, and the second medium outlet are all provided with one-way flow devices.
[0006] In an optional embodiment, a first three-way interface and a second three-way interface are also included. The first medium inlet and the first medium outlet are both connected to the first three-way interface through a one-way flow device, and the second medium inlet and the second medium outlet are both connected to the second three-way interface through a one-way flow device.
[0007] In an optional embodiment, the flow direction maintaining mechanism includes a first control valve, a second control valve, a third control valve, and a fourth control valve, which are respectively connected to a first medium inlet, a second medium inlet, a first medium outlet, and a second medium outlet.
[0008] In an optional embodiment, it further includes a first three-way interface and a second three-way interface, wherein the first medium inlet and the first medium outlet are connected to the first three-way interface through a first control valve and a third control valve, respectively, and the second medium inlet and the second medium outlet are connected to the second three-way interface through a second control valve and a fourth control valve, respectively.
[0009] In an optional embodiment, the flow direction maintaining mechanism includes a first three-way valve and a second three-way valve, with the first medium inlet and the first medium outlet both connected to the first three-way valve, and the second medium inlet and the second medium outlet both connected to the second three-way valve.
[0010] In an optional embodiment, the flow direction maintaining mechanism includes a first three-way valve, a second three-way valve, a first three-way interface, and a second three-way interface. The first three-way interface is connected to the medium inlet, the first three-way valve, and the second three-way valve, respectively, and the second three-way interface is connected to the medium outlet, the first three-way valve, and the second three-way valve, respectively.
[0011] The dye dissolving system provided by this invention has the following beneficial effects: by using a flow direction maintaining mechanism, when the external circulation pipeline switches flow directions, the medium always enters from the medium inlet of the dye kettle and flows out from the medium outlet. Therefore, in the dye kettle, the medium always passes through the baffle, dye layer and separator in sequence, which can achieve dye dissolving consistency in the forward and reverse circulation process, further reduce the color difference between inside and outside and improve dyeing uniformity.
[0012] In a second aspect, the present invention provides a dyeing system, including a dyeing kettle and a dye dissolving system according to any of the foregoing embodiments.
[0013] Thirdly, the present invention provides a staining method applied to a staining system according to the foregoing embodiments, comprising the following steps: Positive circulation staining controls the forward flow of the staining medium; Reverse circulation staining controls the reverse flow of the staining medium; Alternate between positive and negative cyclic staining.
[0014] The dyeing system and dyeing method provided by the present invention have the following beneficial effects: by using the above-mentioned dye dissolution system, the dye in the dyeing kettle can achieve the same dissolution effect when performing forward and reverse circulation dyeing in colloids, which can realize the consistency of dye dissolution in the forward and reverse circulation process, further reduce the color difference between inside and outside, and improve the dyeing uniformity. Attached Figure Description
[0015] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the dye dissolution system provided in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the dye dissolution system provided in Embodiment 2 of the present invention; Figure 3 This is a schematic diagram of the dye dissolution system provided in Embodiment 3 of the present invention; Figure 4 This is a schematic diagram of the dye dissolution system provided in Embodiment 4 of the present invention; Figure 5 This is one of the schematic diagrams illustrating the use of the staining system provided in Embodiment 5 of the present invention; Figure 6 This is the second schematic diagram of the use of the staining system provided in Embodiment 5 of the present invention.
[0017] Icons: 100-Dyeing kettle; 110-Baffle; 120-Dye layer; 130-Separator; 141-First medium inlet; 142-Second medium inlet; 151-First medium outlet; 152-Second medium outlet; 200-External circulation pipeline; 210-One-way flow device; 221-First three-way interface; 222-Second three-way interface; 231-First control valve; 232-Second control valve; 233-Third control valve; 234-Fourth control valve; 241-First three-way valve; 242-Second three-way valve; 300-Dyeing kettle. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0019] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.
[0020] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0021] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0022] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0023] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0024] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0025] Example 1 Embodiment 1 of the present invention provides a staining system, such as Figure 1 , Figure 5 and Figure 6As shown, the dyeing system includes a dyeing kettle 300 and a dye dissolving system. The dye dissolving system includes: a dye kettle 100, in which a partition 110, a dye layer 120, and a separator 130 are sequentially arranged. The dye kettle 100 also has a medium inlet and a medium outlet. The partition 110, the dye layer 120, and the separator 130 are located between the medium inlet and the medium outlet. The medium inlet is located near the partition 110, and the medium outlet is located near the separator 130. An external circulation pipeline 200 is connected to the medium inlet and the medium outlet of the dye kettle 100. The external circulation pipeline 200 includes a flow direction maintaining mechanism, which is configured to respond to changes in the flow direction of the medium in the external circulation pipeline 200 so that the medium entering the dye kettle 100 always enters from the medium inlet and flows out from the medium outlet.
[0026] This embodiment also provides a staining method for the staining system, including the following steps: forward circulation staining, controlling the staining medium to flow in the forward direction; reverse circulation staining, controlling the staining medium to flow in the reverse direction; alternating between forward circulation staining and reverse circulation staining.
[0027] In the dyeing system, dye dissolving system and dyeing method provided in this embodiment, the flow direction maintaining mechanism is used to ensure that when the external circulation pipeline 200 switches flow directions, the medium always enters from the medium inlet and flows out from the medium outlet of the dye tank 100. Therefore, in the dye tank 100, the medium always passes through the partition 110, the dye layer 120 and the separator 130 in sequence, which can achieve dye dissolution consistency in the forward and reverse circulation process, further reduce the color difference between the inside and outside and improve the dyeing uniformity.
[0028] In the dye tank 100, a baffle 110 is used to hold the dye and allow airflow. The baffle 110 is fixed inside the dye tank 100 by a support structure. The dye layer 120 is used to contain the dye, and the separator 130 is used to separate undissolved dye particles and impurities from the dye. The medium inlet is located near the baffle 110, and the medium outlet is located near the separator 130. The medium always passes through the baffle 110, the dye layer 120, and the separator 130 in sequence, which ensures the consistency of dye dissolution.
[0029] Preferably, the dyeing kettle 300 is arranged vertically, with the medium inlet at the bottom and the medium outlet at the top. In this configuration, the medium always flows from bottom to top, which reduces the risk of clogging and improves dissolution efficiency. The dye powder falls naturally under gravity, and with the medium flowing upwards, the powder is less likely to accumulate on the partition 110, keeping the channel unobstructed and reducing the risk of clogging. The upward flow of the medium also allows for more uniform dispersion of the powder, increasing the contact area between the powder and the medium, thereby improving dissolution efficiency.
[0030] In existing technologies, the flow direction of the medium in the dyeing kettle 300 is not restricted. When the dyeing system switches between forward and reverse circulation, the flow direction of the medium also switches between flowing from the partition 110 to the separator 130 and flowing from the separator 130 to the partition 110. When the medium flows from the separator 130 to the partition 110, it can easily cause blockage and low dissolution efficiency. When the medium flows from the separator 130 to the partition 110, the dye powder will accumulate downwards under the action of gravity. The powder is prone to accumulate on the horizontal partition 110, causing channel blockage; the contact area between the powder and the medium is small, resulting in low dissolution efficiency.
[0031] Therefore, the dyeing system, dye dissolution system and dyeing method disclosed in this embodiment can not only improve dyeing uniformity, but also reduce the risk of clogging and improve dissolution efficiency.
[0032] In this embodiment, the medium is supercritical carbon dioxide, and the staining system is a supercritical carbon dioxide anhydrous staining system. In other embodiments, the medium may be replaced with water or other common media.
[0033] Preferably, the top cover of the dyeing kettle 300 has a quick-opening structure for replacing the dye. The partition 110, dye layer 120, and separator 130 can be configured as a single unit for easy replacement, removal, and cleaning. A drain pipe can also be installed at the lowest point of the dyeing kettle 300.
[0034] Specifically, such as Figure 1 , Figure 5 and Figure 6 As shown, in this embodiment, the dye reactor 100 includes a first medium inlet 141, a second medium inlet 142, a first medium outlet 151, and a second medium outlet 152. An external circulation pipeline 200 is simultaneously connected to the first medium inlet 141, the second medium inlet 142, the first medium outlet 151, and the second medium outlet 152. The flow direction maintaining mechanism includes a first control valve 231, a second control valve 232, a third control valve 233, and a fourth control valve 234, which are respectively connected to the first medium inlet 141, the second medium inlet 142, the first medium outlet 151, and the second medium outlet 152. The external circulation pipeline 200 also includes a first three-way interface 221 and a second three-way interface 222. The first medium inlet 141 and the first medium outlet 151 are respectively connected to the first three-way interface 221 via the first control valve 231 and the third control valve 233. The second medium inlet 142 and the second medium outlet 152 are respectively connected to the second three-way interface 222 via the second control valve 232 and the fourth control valve 234.
[0035] Figure 5 This is one of the schematic diagrams of the staining system provided in Embodiment 5 of the present invention, in which the system is in positive loop; Figure 6This is the second schematic diagram of the use of the staining system provided in Embodiment 5 of the present invention, in which the system is in reverse circulation. Figure 5 and Figure 6 The direction of media flow is indicated by arrows. In both positive and negative circulation, the media flows in opposite directions within the dyeing kettle 300 and through the dye dissolving system. However, within the dye dissolving system, a flow direction maintaining mechanism ensures that the media always flows through the dyeing kettle 300 in the same direction during both positive and negative circulation.
[0036] Specifically, such as Figure 1 As shown, during forward circulation, the first control valve 231 and the fourth control valve 234 are opened, and the second control valve 232 and the third control valve 233 are closed. At this time, the medium enters the dyeing vessel 100 through the first medium inlet 141 and exits the dyeing vessel 100 through the second medium outlet 152. During reverse circulation, the second control valve 232 and the third control valve 233 are opened, and the first control valve 231 and the fourth control valve 234 are closed. At this time, the medium enters the dyeing vessel 100 through the second medium inlet 142 and exits the dyeing vessel 100 through the first medium outlet 151. The above forward and reverse circulation are merely examples; in actual applications, the direction of medium flow can be reversed according to the specific dyeing system settings. Setting up forward and reverse circulation in the dyeing system is prior art. The connection method between the external circulation pipeline 200 in the dye dissolution system and the external pipeline of the dyeing vessel 100 in the prior art is the same, and this application does not impose any limitations on this.
[0037] Example 2 Embodiment 2 of the present invention provides a dyeing system, a dyeing method, and a dye dissolving system, wherein only the flow direction maintaining mechanism in the dye dissolving system is different from that in Embodiment 1, which will be described in detail below.
[0038] like Figure 2 As shown, in this embodiment, the dye reactor 100 includes a first medium inlet 141, a second medium inlet 142, a first medium outlet 151, and a second medium outlet 152. An external circulation pipeline 200 is simultaneously connected to the first medium inlet 141, the second medium inlet 142, the first medium outlet 151, and the second medium outlet 152. The flow direction maintaining mechanism includes a first three-way valve 241 and a second three-way valve 242. The first medium inlet 141 and the first medium outlet 151 are both connected to the first three-way valve 241, and the second medium inlet 142 and the second medium outlet 152 are both connected to the second three-way valve 242.
[0039] During forward circulation, the first three-way valve 241 switches to the straight-through state, and the second three-way valve 242 switches to the angle-through state. At this time, the medium enters the dyeing vessel 100 through the first medium inlet 141 and exits the dyeing vessel 100 through the second medium outlet 152. During reverse circulation, the second three-way valve 242 switches to the straight-through state, and the first three-way valve 241 switches to the angle-through state. At this time, the medium enters the dyeing vessel 100 through the second medium inlet 142 and exits the dyeing vessel 100 through the first medium outlet 151. The above forward and reverse circulation are only examples; in actual applications, the direction of medium flow can be changed according to the specific dyeing system settings.
[0040] Example 3 Embodiment 3 of the present invention provides a dyeing system, a dyeing method, and a dye dissolving system, wherein only the flow direction maintaining mechanism in the dye dissolving system and the medium inlet and medium outlet of the dyeing kettle 300 are different from those in Embodiment 1, which will be described in detail below.
[0041] like Figure 3 As shown, the dyeing kettle 300 only has a first medium inlet 141 and a first medium outlet 151, and the number of medium inlets and outlets is simplified compared to Embodiment 1 and Embodiment 2. The flow direction maintaining mechanism includes a first three-way valve 241, a second three-way valve 242, a first three-way interface 221, and a second three-way interface 222. The first three-way interface 221 is connected to the medium inlet, the first three-way valve 241, and the second three-way valve 242, respectively. The second three-way interface 222 is connected to the medium outlet, the first three-way valve 241, and the second three-way valve 242, respectively.
[0042] During forward circulation, the first three-way valve 241 switches to straight-through mode, and the second three-way valve 242 switches to angle-through mode. The medium flows sequentially through the first three-way valve 241, the first three-way port 221, the first medium inlet 141, the first medium outlet 151, the second three-way port 222, and the second three-way valve 242. During reverse circulation, the first three-way valve 241 switches to angle-through mode, and the second three-way valve 242 switches to straight-through mode. The medium flows sequentially through the second three-way valve 242, the first three-way port 221, the first medium inlet 141, the first medium outlet 151, the second three-way port 222, and the first three-way valve 241. The above forward and reverse circulation are only examples; in actual applications, the medium flow direction can be changed according to the specific dyeing system settings.
[0043] Example 4 Embodiment 4 of the present invention provides a dyeing system, a dyeing method, and a dye dissolving system, wherein only the flow direction maintaining mechanism in the dye dissolving system is different from that in Embodiment 1, which will be described in detail below.
[0044] like Figure 4As shown, the dyeing vessel 100 includes a first medium inlet 141, a second medium inlet 142, a first medium outlet 151, and a second medium outlet 152. An external circulation pipeline 200 is simultaneously connected to the first medium inlet 141, the second medium inlet 142, the first medium outlet 151, and the second medium outlet 152. The flow direction maintenance mechanism includes a one-way flow device 210, which is provided at each of the first medium inlet 141, the second medium inlet 142, the first medium outlet 151, and the second medium outlet 152. It also includes a first three-way interface 221 and a second three-way interface 222. The first medium inlet 141 and the first medium outlet 151 are both connected to the first three-way interface 221 via the one-way flow device 210, and the second medium inlet 142 and the second medium outlet 152 are both connected to the second three-way interface 222 via the one-way flow device 210.
[0045] During forward circulation, the medium flows sequentially through the first three-way port 221, the first medium inlet 141, the second medium outlet 152, and the second three-way valve 242; during reverse circulation, the medium flows sequentially through the second three-way valve 242, the second medium inlet 142, the first medium outlet 151, and the first three-way valve 241. The above forward and reverse circulation are merely examples; in actual applications, the flow direction of the medium can be reversed according to the specific dyeing system. The unidirectional flow device 210 can specifically be a one-way valve or other similar components.
[0046] In this embodiment, the flow direction of the medium is controlled by the one-way flow device 210, so the dye dissolution system does not need to be actively controlled, resulting in better system stability and a simpler control method.
[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A dye dissolving system, characterized in that, include: A dyeing tank (100) is provided with a partition (110), a dye layer (120) and a separator (130) in sequence. The dyeing tank (100) is also provided with a medium inlet and a medium outlet. The partition (110), the dye layer (120) and the separator (130) are located between the medium inlet and the medium outlet. The medium inlet is located close to the partition (110) and the medium outlet is located close to the separator (130). An external circulation line (200) is connected to the media inlet and media outlet of the dye reactor (100). The external circulation line (200) includes a flow direction maintaining mechanism configured to respond to a change in the flow direction of the media in the external circulation line (200) so that the media entering the dye reactor (100) always enters from the media inlet and flows out from the media outlet.
2. The dye dissolving system according to claim 1, characterized in that, The dyeing vessel (100) includes a first medium inlet (141), a second medium inlet (142), a first medium outlet (151), and a second medium outlet (152). The external circulation pipeline (200) is simultaneously connected to the first medium inlet (141), the second medium inlet (142), the first medium outlet (151), and the second medium outlet (152).
3. The dye dissolving system according to claim 2, characterized in that, The flow direction maintaining mechanism includes a one-way flow device (210), and the first medium inlet (141), the second medium inlet (142), the first medium outlet (151), and the second medium outlet (152) are all provided with one-way flow devices (210).
4. The dye dissolving system according to claim 3, characterized in that, It also includes a first three-way interface (221) and a second three-way interface (222). The first medium inlet (141) and the first medium outlet (151) are both connected to the first three-way interface (221) through a one-way flow device (210). The second medium inlet (142) and the second medium outlet (152) are both connected to the second three-way interface (222) through a one-way flow device (210).
5. The dye dissolving system according to claim 2, characterized in that, The flow direction maintaining mechanism includes a first control valve (231), a second control valve (232), a third control valve (233), and a fourth control valve (234), which are respectively connected to the first medium inlet (141), the second medium inlet (142), the first medium outlet (151), and the second medium outlet (152).
6. The dye dissolving system according to claim 5, characterized in that, It also includes a first three-way interface (221) and a second three-way interface (222). The first medium inlet (141) and the first medium outlet (151) are connected to the first three-way interface (221) through a first control valve (231) and a third control valve (233), respectively. The second medium inlet (142) and the second medium outlet (152) are connected to the second three-way interface (222) through a second control valve (232) and a fourth control valve (234), respectively.
7. The dye dissolving system according to claim 2, characterized in that, The flow direction maintaining mechanism includes a first three-way valve (241) and a second three-way valve (242). The first medium inlet (141) and the first medium outlet (151) are both connected to the first three-way valve (241), and the second medium inlet (142) and the second medium outlet (152) are both connected to the second three-way valve (242).
8. The dye dissolving system according to claim 1, characterized in that, The flow direction maintaining mechanism includes a first three-way valve (241), a second three-way valve (242), a first three-way port (221), and a second three-way port (222). The first three-way port (221) is connected to the medium inlet, the first three-way valve (241), and the second three-way valve (242), respectively. The second three-way port (222) is connected to the medium outlet, the first three-way valve (241), and the second three-way valve (242), respectively.
9. A staining system, characterized in that, It includes a dyeing kettle (300) and a dye dissolving system according to any one of claims 1-8.
10. A staining method, characterized in that, The staining system according to claim 9 is applied to, comprising the following steps: Positive circulation staining controls the forward flow of the staining medium; Reverse circulation staining controls the reverse flow of the staining medium; Alternate between positive and negative cyclic staining.