Fiber coloring equipment

Abstract

The embodiment of the utility model provides fiber coloring equipment, and relates to the technical field of fiber coloring. The fiber coloring equipment comprises a first container device, an air pressure adjusting assembly and a first switch valve. The first container device is internally provided with a first cavity, and the first cavity is used for loading a hollow fiber material and a liquid coloring agent so that the coloring agent can immerse the hollow fiber material; the first container device is further provided with a first communication opening, the first communication opening is communicated with the first cavity, the first communication opening is connected with one end of a first switch valve, and the other end of the first switch valve is used for being connected with a coloring agent storage device. The air pressure adjusting assembly is connected with the first container device and used for adjusting the air pressure in the first cavity so that the air pressure in the first cavity can be converted between the positive pressure and the negative pressure. In this way, the inner cavity of the tubular hollow fiber can be filled with the coloring agent conveniently, so that all positions of the inner cavity of the tubular hollow fiber can be colored conveniently.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of fiber coloring, and in particular to a fiber coloring device. Background Art

[0002] Fibers can be used to increase strength and stiffness and are used in a variety of structural components. Colored fibers are fibers with color effects, which can be obtained by coloring the fibers. Applying colored fibers to structural components not only improves the strength and stiffness of the components, but also gives them a colorful appearance.

[0003] In the related art, the tubular hollow fiber can be colored by immersing one end of the tubular hollow fiber in a liquid colorant and using the capillary effect to absorb the liquid colorant into the inner cavity of the tubular hollow fiber, thereby obtaining a colored fiber.

[0004] However, in some scenarios, it is difficult to fill the inner cavity of the tubular hollow fiber with the liquid colorant by utilizing the capillary effect, resulting in difficulty in coloring a portion of the inner cavity of the tubular hollow fiber. Utility Model Content

[0005] The embodiments of the present application provide a fiber coloring device and a fiber coloring method, which facilitate filling the inner cavity of a tubular hollow fiber with a colorant, so as to color various positions of the inner cavity of the tubular hollow fiber.

[0006] In a first aspect, an embodiment of the present application provides a fiber coloring device, comprising a first container device, an air pressure regulating assembly, and a first switch valve. The first container device includes a first chamber, which is used to load a hollow fiber material and a liquid colorant so that the colorant can immerse the hollow fiber material. The first container device also has a first connecting port, which is connected to the first chamber and is connected to one end of the first switch valve, the other end of which is used to connect to a colorant storage device. The air pressure regulating assembly is connected to the first container device and is used to regulate the air pressure in the first chamber so that the air pressure in the first chamber can be switched between positive pressure and negative pressure.

[0007] The embodiment of the present application provides an air pressure regulating assembly that can convert the air pressure in the first chamber between positive and negative pressures, thereby facilitating the extraction of air from the inner cavity of the target fiber and providing a greater pressure for the liquid colorant to be pressed into the inner cavity of the target fiber. This can reduce the resistance of the gas in the inner cavity of the target fiber to the flow of the colorant into the inner cavity of the target fiber, and also facilitate the colorant to overcome the resistance in the target fiber and fill the inner cavity of the target fiber, so as to facilitate coloring various positions of the target fiber. In addition, the air pressure regulating assembly converts the air pressure in the first chamber between positive and negative pressures, which also facilitates the first chamber to absorb and discharge the colorant.

[0008] In one possible embodiment, the air pressure regulating assembly includes a second on-off valve, a third on-off valve, a first vacuum pump, and a gas supply device. The first container device further has a second connecting port and a third connecting port, both of which are connected to the first chamber. The second connecting port is connected to one end of the second on-off valve, the other end of which is connected to the first vacuum pump, and the first vacuum pump is used to extract gas from the first chamber through the opened second on-off valve and the second connecting port. The third connecting port is connected to one end of the third on-off valve, the other end of which is connected to the gas supply device, and the gas supply device is used to supply gas into the first chamber through the opened third on-off valve and the third connecting port.

[0009] In this way, it is easy to adjust the air pressure of the first chamber.

[0010] In one possible embodiment, the first container device includes a first outer container and a first inner container. The first outer container has a first chamber, and the first inner container is disposed within the first chamber. The first chamber includes a first space located within the first inner container and a second space located outside the first inner container. The top of the first inner container has a first opening, and the first and second spaces are connected through the first opening. The first space is used to hold hollow fiber material and a liquid colorant for immersing the hollow fiber material in the colorant. The first inner container has a first connecting port, which is connected to the first space. The first outer container has a second connecting port and a third connecting port, both of which are connected to the second space.

[0011] In this way, the first space is connected to the second space through the first opening at the top, and the colorant and hollow fiber material loaded in the first space are not easy to enter the second space. The second connecting port is connected to the first space through the second space and the first opening, and the colorant and hollow fiber material are not easy to be sucked into the first vacuum pump. The third connecting port is connected to the first space through the second space and the first opening, so that the gas supplied by the gas supply device can pressurize the liquid surface of the colorant to press the colorant into the inner cavity of the target fiber. In addition, it is not easy to cause the colorant to be difficult to fill or unevenly filled in the target fiber due to the gas content of the colorant increased by the gas supplied by the gas supply device. In addition, the position setting of the second connecting port and the third connecting port is relatively flexible.

[0012] In one possible embodiment, the first outer container includes a first can body and a first can lid. The first can body has a second opening at the top, and the first can lid is connected to the top of the first can body with a reclosable lid. The first can lid seals the second opening. The first can body and the first can lid form a first chamber, and the first inner container is connected to the first can body.

[0013] Thus, hollow fiber materials can be easily accessed through the second opening. Furthermore, the first tank cover is connected to the top of the first tank body, which helps to support the pressure of the first outer container. Furthermore, it also facilitates cleaning and maintenance of the first chamber.

[0014] In a possible implementation, the second communication port and the third communication port are both located on the first tank body.

[0015] In this way, the second communication port and the third communication port will not shift with the opening and closing of the first tank cover, which is conducive to the connection of the second switch valve, the third switch valve, the first vacuum pump and the air supply device with the first external container.

[0016] In a possible implementation, the first inner container is detachably connected to the first tank body, and the first switch valve is detachably connected to the first communication port.

[0017] Thus, when different colorants are used for coloring, the corresponding first inner container can be replaced to prevent the different colorants from being loaded into the same first inner container and affecting each other. In addition, the first inner container can be removed from the first tank body for inspection and cleaning, making inspection and cleaning of the first inner container easier.

[0018] In one possible embodiment, the fiber coloring apparatus further includes a first connecting pipe. The first tank body has a first pipe-through hole, and the first connecting pipe is inserted into the first pipe-through hole and is sealedly connected to the first tank body. One end of the first connecting pipe is located within the first tank body and is removably connected to the first communication port. The other end of the first connecting pipe is located outside the first tank body and is connected to a first on-off valve, which is removably connected to the first communication port via the first connecting pipe.

[0019] In this way, the first switch valve is located outside the first chamber, and the performance of the first switch valve is not affected by the change of the gas pressure in the first chamber.

[0020] In a possible implementation, the fiber coloring device further includes a material rack, which is disposed in the first chamber and is used to fix the hollow fiber material.

[0021] In this way, the material rack can support the hollow fiber material, which is conducive to the colorant entering the inner cavity of the target fiber. In addition, after the hollow fiber material is fixed by the material rack, it is not easy to shake, which is conducive to the stable coloring of the hollow fiber material by the colorant.

[0022] In a possible implementation manner, a filter is provided at the first communication port.

[0023] In this way, it is convenient to filter the colorant in the first chamber when it flows out of the first chamber, so that the fallen fibers and other debris are not easily flowed out of the first chamber with the colorant, and it is not easy to cause problems such as blockage of the colorant flow path or failure of the first switch valve.

[0024] In a possible implementation, the fiber coloring device further includes a first air pressure detection device, which is disposed in the first chamber and is used to detect the air pressure in the first chamber.

[0025] In this way, it is convenient to grasp the air pressure in the first chamber, so as to control the fiber coloring process according to the air pressure in the first chamber.

[0026] In one possible embodiment, the fiber coloring apparatus further includes a colorant storage device. The colorant storage device includes a second container device. The second container device includes a second chamber for storing liquid colorant. The second container device has a fourth communication port and a fifth communication port, both of which communicate with the second chamber. The fourth communication port is connected to the first on / off valve, and the fifth communication port is used to allow gas to enter and exit the second chamber.

[0027] In this way, the colorant stored in the second chamber can be easily flowed into the first chamber to color the hollow fiber material. In addition, after the hollow fiber material is colored, the colorant can be returned to the second chamber for storage, and the colorant returned to the second chamber can be reused in the next coloring.

[0028] In a possible implementation, the colorant storage device further includes a stirring mechanism. The stirring mechanism is disposed in the second chamber and is used to stir the colorant stored in the second chamber.

[0029] In this way, the stirring mechanism expels gas from the colorant in the second chamber, reducing the gas content of the colorant. This reduces the difficulty or uneven filling of the colorant into the target fiber caused by high gas content. Furthermore, pigment that has settled due to long-term static conditions can be mixed evenly, facilitating uniform coloring of the target fiber.

[0030] In one possible embodiment, the colorant storage device further includes a fourth on-off valve, a fifth on-off valve, and a second vacuum pump. The fifth communication port is connected to the fourth on-off valve. The second container device further includes a sixth communication port, which communicates with the second chamber. The sixth communication port is connected to one end of the fifth on-off valve, and the other end of the fifth on-off valve is connected to the second vacuum pump. The second vacuum pump is configured to extract gas from the second chamber through the open fifth on-off valve and the sixth communication port.

[0031] In this manner, the second vacuum pump evacuates the gas within the second chamber, facilitating the discharge of the gas stirred from the colorant by the stirring mechanism out of the second chamber. Furthermore, the second vacuum pump can reduce the pressure within the second chamber to a negative pressure, facilitating the removal of gas from the colorant during stirring by the stirring mechanism, thereby reducing the gas content of the colorant.

[0032] In one possible embodiment, the second container device includes a second outer container and a second inner container. The second outer container has a second chamber, and the second inner container is disposed within the second chamber. The second chamber includes a third space located within the second inner container and a fourth space located outside the second inner container. The top of the second inner container has a third opening, and the third and fourth spaces are connected through the third opening. The third space is used to store liquid colorant, and a stirring mechanism is disposed within the third space, and the stirring mechanism is used to stir the colorant stored in the third space. The second inner container has a fourth connecting port, which is connected to the third space. The second outer container has a fifth connecting port and a sixth connecting port, and the sixth connecting port is connected to the fourth space.

[0033] In this way, the third space is connected to the fourth space through the opening at the third top, preventing colorant contained in the third space from entering the fourth space. The sixth connecting port is connected to the third space through the fourth space and the third opening, preventing colorant from being drawn into the second vacuum pump. Furthermore, the location of the sixth connecting port is flexible.

[0034] In a possible implementation, the fifth communication port is located at the top of the second external container, and a projection of the fifth communication port along the vertical direction is located within a projection of the third opening along the vertical direction.

[0035] In this way, it is convenient to inject the colorant into the third space through the fifth communication port, without the need to provide an additional communication port for adding the colorant.

[0036] In a possible embodiment, a flow guide tube is provided in the second chamber, one end of the flow guide tube is connected to the fifth connecting port, the other end of the flow guide tube is located in the third space, the fifth connecting port is connected to the third space through the flow guide tube, and the flow guide tube is located above the stirring mechanism.

[0037] In this way, it is easy to inject the colorant into the third space through the fifth communicating port, and the colorant injected into the second chamber through the fifth communicating port is not likely to flow into the fourth space.

[0038] In one possible embodiment, the second outer container includes a second tank body and a second tank lid. The second tank body has a fourth opening at the top, and a closable cover of the second tank lid is connected to the top of the second tank body, the second tank lid sealing the fourth opening. The second tank body and the tank lid are used to form a second chamber. The second inner container is detachably connected to the second tank body, and the first on / off valve is detachably connected to the fourth communication port.

[0039] This facilitates cleaning and maintenance of the second chamber. Furthermore, the second tank lid is attached to the top of the second tank body, facilitating pressure-bearing of the second outer container. Furthermore, when using different colorants for coloring, the corresponding second inner container can be replaced to prevent the different colorants from being loaded into the same second inner container from interfering with each other. Furthermore, the second inner container can be removed from the second tank body, further simplifying maintenance and cleaning of the second inner container.

[0040] A second aspect of the present application provides a fiber coloring method, using the fiber coloring device in any of the above embodiments, the method comprising the steps of:

[0041] After the hollow fiber material is loaded into the first chamber of the fiber coloring device, the air pressure in the first chamber is reduced to a first preset value through the air pressure regulating component of the fiber coloring device, wherein the hollow fiber material includes a target fiber, the target fiber is a tubular hollow fiber, and the openings at both ends of the target fiber are connected to the first chamber, and the first preset value is less than 1 standard atmospheric pressure.

[0042] After the air pressure in the first chamber drops to a first preset value, the first switch valve of the fiber coloring device is switched from a closed state to an open state, so that the liquid colorant enters the first chamber through the first communication port of the fiber coloring device.

[0043] After the hollow fiber material loaded in the first chamber is immersed in the colorant, the first switch valve is switched from an open state to a closed state.

[0044] After the first switch valve is switched from an open state to a closed state, the air pressure in the first chamber is increased to a second preset value through the air pressure regulating component, wherein the second preset value is greater than 1 standard atmospheric pressure.

[0045] After the air pressure in the first chamber is increased to a second preset value, the air pressure in the first chamber is maintained at the second preset value for a preset time, so that the inner cavity of the target fiber is filled with the liquid colorant to obtain a colored fiber material intermediate.

[0046] The colored fiber material intermediate is post-processed to obtain a colored fiber material, wherein the colored fiber material includes target fibers and a colorant, and the inner wall of the target fibers is covered by the colorant.

[0047] The fiber coloring method provided in the embodiment of the present application can convert the air pressure in the first chamber between positive pressure and negative pressure through an air pressure regulating component, so as to extract the air in the inner cavity of the target fiber and provide a larger pressure for the liquid colorant to be pressed into the inner cavity of the target fiber, thereby reducing the resistance caused by the gas in the inner cavity of the target fiber to the flow of the colorant into the inner cavity of the target fiber, and also facilitating the colorant to overcome the resistance in the target fiber and fill the inner cavity of the target fiber, so as to color various positions of the target fiber, so as to obtain a colored fiber material with the inner wall of the target fiber covered with the colorant.

[0048] In a possible implementation, the first preset value is less than 1 Pa.

[0049] In this way, the gas in the target fiber can be evacuated before the colorant enters the inner cavity of the target fiber, so that the colorant can fill the inner cavity of the target fiber.

[0050] In a possible implementation manner, the second preset value is greater than or equal to 0.2 MPa and less than or equal to 1 MPa.

[0051] In this way, a larger pressure difference can be created between the inner cavity of the target fiber and the first chamber, which is conducive to filling the inner cavity of the target fiber with the colorant. In addition, it is also conducive to the safe operation of the equipment.

[0052] In a possible implementation, the preset time is greater than or equal to 30 minutes.

[0053] In this way, sufficient time is provided for the liquid colorant to flow in the target fiber, so that the inner cavity of the target fiber is filled with the liquid colorant.

[0054] In one possible embodiment, before switching the first on-off valve of the fiber coloring device from a closed state to an open state to allow the liquid colorant to enter the first chamber through the first communication port of the fiber coloring device, the method further includes the steps of:

[0055] The liquid colorant stored in the second chamber of the fiber coloring device is stirred by the stirring mechanism of the fiber coloring device.

[0056] This allows the gas in the colorant within the second chamber to be expelled, reducing the gas content in the colorant. This reduces the risk of problems such as difficulty or uneven filling of the target fiber with the colorant due to high gas content. Furthermore, pigments that have settled due to prolonged standing can be mixed evenly, facilitating uniform coloring of the target fiber.

[0057] In one possible embodiment, before switching the first on-off valve of the fiber coloring device from a closed state to an open state to allow the liquid colorant to enter the first chamber through the first communication port of the fiber coloring device, the method further includes the steps of:

[0058] The fourth switch valve of the fiber coloring device is closed, and the fifth switch valve and the second vacuum pump of the fiber coloring device are opened to reduce the pressure in the second chamber to a third preset value, wherein the third preset value is less than 1 standard atmospheric pressure.

[0059] In this manner, the second vacuum pump evacuates the gas within the second chamber, facilitating the discharge of the gas stirred from the colorant by the stirring mechanism out of the second chamber. Furthermore, the second vacuum pump can reduce the pressure within the second chamber to a negative pressure, facilitating the removal of gas from the colorant during stirring by the stirring mechanism, thereby reducing the gas content of the colorant.

[0060] In one possible embodiment, after maintaining the air pressure in the first chamber at a second preset value for a preset time so that the inner cavity of the target fiber is filled with the liquid colorant to obtain a colored fiber material intermediate, the method further includes the steps of:

[0061] The first on-off valve is switched from a closed state to an open state, and the colorant in the first chamber is discharged through the first communication port using the air pressure in the first chamber.

[0062] In this way, after the hollow fiber material is colored, the colorant can be discharged to facilitate taking out the colored fiber material intermediate. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] Figure 1 This is a schematic diagram of a fiber coloring device provided in an embodiment of the present application before a colorant enters a first chamber;

[0064] Figure 2 for Figure 1 A schematic diagram of a hollow fiber material loaded in a first chamber of a fiber coloring apparatus provided in FIG. 1 being immersed in a colorant;

[0065] Figure 3 for Figure 1 A schematic diagram of a fiber coloring apparatus provided in the drawing when the colorant is discharged from the first chamber;

[0066] Figure 4 A schematic diagram of a colorant storage device provided in an embodiment of the present application;

[0067] Figure 5 This is a schematic external diagram of a fiber coloring device from one perspective provided in an embodiment of the present application;

[0068] Figure 6 for Figure 5 Another external schematic diagram of the fiber coloring device provided in;

[0069] Figure 7 A schematic cross-sectional view of a fiber coloring device provided in an embodiment of the present application;

[0070] Figure 8 A cross-sectional schematic diagram of another fiber coloring device provided in an embodiment of the present application;

[0071] Figure 9 A cross-sectional schematic diagram of another fiber coloring device provided in an embodiment of the present application;

[0072] Figure 10 This is a process flow chart of a fiber coloring method provided in an embodiment of the present application.

[0073] Description of reference numerals:

[0074] 10. Colorant storage device; 20. Hollow fiber material; 30. Colorant;

[0075] 100, first container assembly; 110, first outer container; 111, first tank body; 1111, second communication port; 1112, third communication port; 112, first tank lid; 113, first locking mechanism; 120, first inner container; 121, first communication port; 122, filter; 130, first chamber; 131, first space; 132, second space; 140, material rack;

[0076] 200, air pressure regulating assembly; 210, second switch valve; 220, third switch valve; 230, first vacuum pump; 240, air supply device;

[0077] 300, first switch valve; 310, first connecting pipe; 320, second connecting pipe;

[0078] 400, second container device; 410, second outer container; 411, second tank body; 4111, sixth communication port; 412, second tank lid; 4121, fifth communication port; 413, second locking mechanism; 420, second inner container; 421, fourth communication port; 430, second chamber; 431, third space; 432, fourth space; 440, flow guide tube;

[0079] 500, stirring mechanism; 510, stirring motor; 520, transmission rod;

[0080] 610, fourth switch valve; 620, fifth switch valve; 630, second vacuum pump; 640, pressure relief valve;

[0081] 710, a first air pressure detection device; 720, a second air pressure detection device. DETAILED DESCRIPTION

[0082] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application. The implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0083] Colored fibers can be used in structural components of electronic devices, household appliances, vehicles, and other products to improve their strength, rigidity, and appearance. Colored fibers can be formed by coloring the tubular hollow fibers by filling the lumen of the fibers with a colorant. This coloring offers advantages such as easy control of the color of the fibers and resistance to wear of the colorant.

[0084] The tubular hollow fiber refers to a fiber with a tubular structure, that is, the tubular hollow fiber has a hollow inner cavity, and the hollow inner cavity extends along the extension direction of the tubular hollow fiber and passes through both ends of the tubular hollow fiber.

[0085] In the related art, the tubular hollow fiber can be colored by immersing one end of the tubular hollow fiber in a liquid colorant and using the capillary effect to absorb the liquid colorant into the inner cavity of the tubular hollow fiber, thereby obtaining a colored fiber.

[0086] However, due to the resistance of the gas in the inner cavity of the tubular hollow fiber and the resistance of the inner wall of the tubular hollow fiber, when the inner diameter of the tubular hollow fiber is small, the length of the tubular hollow fiber is long, or the viscosity of the colorant is large, it is difficult to use the capillary effect to fill the inner cavity of the tubular hollow fiber with liquid colorant, resulting in difficulty in coloring some parts of the inner cavity of the tubular hollow fiber.

[0087] Figure 1 This is a schematic diagram of a fiber coloring device provided in an embodiment of the present application before the colorant enters the first chamber.

[0088] like Figure 1 As shown, based on this, an embodiment of the present application provides a fiber coloring device, which includes a first container device 100, and the first container device 100 has a first chamber 130, and the first chamber 130 is used to load the hollow fiber material 20 and the liquid colorant 30 so that the colorant 30 can immerse the hollow fiber material 20.

[0089] The hollow fiber material 20 refers to a material comprising tubular hollow fibers. For example, the hollow fiber material 20 may include, but is not limited to, fiber yarns, fiber fabrics, fiber-reinforced composite materials, and the like.

[0090] The hollow fiber material 20 loaded into the first chamber 130 includes target fibers to be colored. The target fibers are tubular hollow fibers, and openings at both ends of the target fibers are communicated with the first chamber 130 .

[0091] Exemplary, the target fiber is a fiber with a certain transparency. In some examples, the target fiber can be a transparent fiber. In other examples, the target fiber can also be a translucent fiber.

[0092] For example, the target fiber may include, but is not limited to, glass fiber, quartz fiber, carbon fiber, ceramic fiber, organic fiber, and the like.

[0093] For example, the target fiber may have a length greater than or equal to 1 cm. For example, the target fiber may have a length greater than or equal to 3 cm. For another example, the target fiber may have a length greater than or equal to 5 cm. For another example, the target fiber may have a length greater than or equal to 10 cm. For another example, the target fiber may have a length greater than or equal to 20 cm. For another example, the target fiber may have a length greater than or equal to 50 cm. For another example, the target fiber may have a length greater than or equal to 100 cm.

[0094] For example, the inner diameter of the target fiber can be less than or equal to 20 μm. For example, the inner diameter of the target fiber can be less than or equal to 10 μm. For another example, the inner diameter of the target fiber can be less than or equal to 8 μm. For another example, the inner diameter of the target fiber can be less than or equal to 5 μm. For another example, the inner diameter of the target fiber can be less than or equal to 3 μm.

[0095] For example, the liquid colorant 30 may include, but is not limited to, a water-based colorant, a resin-based colorant, an alcohol-based colorant, an aldehyde-based colorant, etc. The water-based colorant refers to a colorant 30 based on water, the resin-based colorant refers to a colorant 30 based on resin, the alcohol-based colorant refers to a colorant 30 based on alcohol, and the aldehyde-based colorant refers to a colorant 30 based on aldehyde.

[0096] For example, the liquid colorant 30 may include, but is not limited to, a coloring solution, a coloring suspension, a coloring colloid, etc. In some examples, the liquid colorant 30 may include a liquid base and a dye dissolved in the base. In some examples, the liquid colorant 30 may include a liquid base and a particulate pigment suspended in the base.

[0097] For example, the colorant 30 may be a colorant of fixed color or a colorant whose color may change under certain conditions.

[0098] For example, the colorant 30 may include a fluorescent colorant or a high-gloss colorant.

[0099] In the embodiment of the present application, the first container device 100 is a pressure-resistant container device that can withstand pressure changes from negative to positive. The fiber coloring apparatus further includes an air pressure regulating assembly 200 and a first on-off valve 300. The first container device 100 further includes a first communication port 121 that communicates with the first chamber 130. The first communication port 121 is connected to one end of the first on-off valve 300. The other end of the first on-off valve 300 is connected to a colorant storage device 10 for storing liquid colorant 30. When the first on-off valve 300 is closed, the first chamber 130 becomes a sealed chamber. The air pressure regulating assembly 200 is connected to the first container device 100 and is used to adjust the air pressure within the first chamber 130, allowing the pressure within the first chamber 130 to switch between positive and negative pressures. Positive pressure refers to air pressure greater than 1 standard atmosphere, and negative pressure refers to air pressure less than 1 standard atmosphere.

[0100] In this way, the air pressure regulating assembly 200 can be used to switch the air pressure within the first chamber 130 between positive and negative pressures, thereby facilitating the extraction of air from the inner cavity of the target fiber and providing a greater pressure for the liquid colorant 30 to be pressed into the inner cavity of the target fiber. This, in turn, reduces the resistance of the gas within the inner cavity of the target fiber to the flow of the colorant 30 into the inner cavity of the target fiber, thereby facilitating the colorant 30 to overcome the resistance within the target fiber and fill the inner cavity of the target fiber, thereby facilitating coloring various locations on the target fiber. Furthermore, the air pressure regulating assembly 200 switches the air pressure within the first chamber 130 between positive and negative pressures, thereby facilitating the intake and discharge of the colorant 30 from the first chamber 130.

[0101] Specifically, the hollow fiber material 20 can be loaded into the first chamber 130 when the first switch valve 300 is in the closed state. After the hollow fiber material 20 is loaded into the first chamber 130, the air pressure in the first chamber 130 is adjusted to a negative pressure through the air pressure regulating assembly 200, so that the gas in the inner cavity of the target fiber is extracted and the air pressure in the inner cavity of the target fiber is reduced. After the gas in the inner cavity of the target fiber is extracted, the first switch valve 300 is switched from the closed state to the open state, so that the colorant 30 in the colorant storage device 10 flows into the first chamber 130 through the first connecting port 121. The colorant 30 flowing into the first chamber 130 will be pressed into the inner cavity of the target fiber under the action of the pressure difference between the inner cavity of the target fiber and the first chamber 130. Before the colorant 30 enters the inner cavity of the target fiber, the gas in the target fiber has been extracted, which will not cause any obstruction to the flow of the colorant 30 in the inner cavity of the target fiber, which is conducive to the colorant 30 filling the inner cavity of the target fiber.

[0102] After the colorant 30 has submerged the hollow fiber material 20, the first switch valve 300 is switched from an open state to a closed state, and then the air pressure in the first chamber 130 is adjusted to a positive pressure through the air pressure regulating assembly 200 to increase the pressure difference between the inner cavity of the target fiber and the first chamber 130. The colorant 30 can then be further pressed into the inner cavity of the target fiber by the gas in the first chamber 130. The larger pressure difference between the inner cavity of the target fiber and the first chamber 130 helps the colorant 30 overcome the resistance in the target fiber and fill the inner cavity of the target fiber.

[0103] In this way, even in scenarios where the inner diameter of the tubular hollow fiber is small, the length of the tubular hollow fiber is long, or the viscosity of the colorant 30 is high, the inner cavity of the target fiber can be filled with the liquid colorant 30 so as to achieve coloring of all positions of the inner cavity of the target fiber.

[0104] Illustratively, the first container device 100 can withstand a pressure change from vacuum to a pressure greater than or equal to 1 MPa.

[0105] In some examples, the fiber coloring apparatus may include a colorant storage device 10 .

[0106] In other examples, the fiber coloring apparatus may not include the colorant storage device 10 , the colorant storage device 10 is independent of the fiber coloring apparatus, and the colorant storage device 10 is detachably connected to the first switching valve 300 .

[0107] In some possible embodiments, the colorant storage device 10 includes a second container device 400. The second container device 400 has a second chamber 430 therein, which is used to store liquid colorant 30. The second container device 400 has a fourth communication port 421 and a fifth communication port 4121, both of which are connected to the second chamber 430. The fourth communication port 421 is connected to the first on-off valve 300, and the fifth communication port 4121 is used to allow gas to enter and exit the second chamber 430 to balance the air pressure in the second chamber 430 and outside the second container device 400. The fifth communication port 4121 can be located above the fourth communication port 421. When the first on-off valve 300 is in the open state, the first chamber 130 is connected to the first chamber 130, and the colorant 30 can flow between the first chamber 130 and the second chamber 430.

[0108] In this way, the colorant 30 stored in the second chamber 430 can be easily flowed into the first chamber 130 to color the hollow fiber material 20. In addition, after the coloring of the hollow fiber material 20 is completed, the colorant 30 can be easily returned to the second chamber 430 for storage. The colorant 30 returned to the second chamber 430 can be reused in the next coloring.

[0109] Illustratively, the fifth communication port 4121 may be located at the top of the second container device 400 .

[0110] In some examples, during the process of coloring the hollow fiber material 20 , the fifth communication port 4121 may be in communication with the external atmosphere.

[0111] In other examples, during the coloring process of the hollow fiber material 20, the fifth communication port 4121 can be detachably connected to a gas collection device, thereby preventing the gas in the second chamber 430 from escaping into the outside atmosphere and causing air pollution. After the coloring of the hollow fiber material 20 is completed, the gas collection device can be removed from the fifth communication port 4121. For example, the gas collection device can be a gas collection bag.

[0112] For example, the fifth communication port 4121 can also be used to inject the colorant 30 into the second chamber 430. The fifth communication port 4121 can be detachably connected to the colorant supply device. When the colorant 30 needs to be added to the second chamber 430, the fifth communication port 4121 can be connected to the colorant supply device. After the colorant 30 is added to the second chamber 430, the colorant supply device can be removed from the fifth communication port 4121.

[0113] Figure 2 for Figure 1 A schematic diagram of a hollow fiber object loaded in a first chamber of a fiber coloring apparatus provided in FIG. 1 is immersed in a colorant, Figure 3 for Figure 1 A schematic diagram of the fiber coloring apparatus provided in FIG. 1 is provided when the colorant is discharged from the first chamber.

[0114] like Figure 2 、 Figure 3 As shown, and see Figure 1After the air pressure in the first chamber 130 is adjusted to a negative pressure by the air pressure regulating component 200 and the air in the target fiber of the hollow fiber material 20 loaded in the first chamber 130 is extracted, the first on-off valve 300 can be switched from a closed state to an open state, and the negative pressure in the first chamber 130 can be used to suck the colorant 30 stored in the second chamber 430 into the first chamber 130. At this time, the gas can enter the second chamber 430 through the fifth connecting port 4121 to balance the air pressure in the second chamber 430 and the air pressure outside the second container device 400. After the colorant 30 submerges the hollow fiber material 20, the first on-off valve 300 can be switched from an open state to a closed state, and then the air pressure in the first chamber 130 can be adjusted to a negative pressure by the air pressure regulating component 200. 0 is adjusted to a positive pressure to color the hollow fiber material 20. After the coloring of the hollow fiber material 20 is completed, the first switch valve 300 can be switched from a closed state to an open state, and the positive pressure in the first chamber 130 can be used to make the colorant 30 in the first chamber 130 flow back into the second chamber 430. At this time, the gas in the second chamber 430 flows out of the second chamber 430 through the fifth connecting port 4121 to balance the air pressure outside the second chamber 430 and the second container device 400. After all the colorant 30 in the first chamber 130 flows back into the second chamber 430, the first switch valve 300 is switched from an open state to a closed state, and then the colored fiber material intermediate formed after the hollow fiber material 20 is colored is taken out.

[0115] In some possible implementations, the fiber coloring apparatus further includes a first air pressure detection device 710 . The first air pressure detection device 710 is disposed in the first chamber 130 , and is used to detect the air pressure in the first chamber 130 .

[0116] In this way, it is convenient to grasp the air pressure in the first chamber 130 , so as to control the fiber coloring process according to the air pressure in the first chamber 130 .

[0117] In some possible implementations, the fiber coloring apparatus further includes a first liquid level detection device, which is disposed in the first chamber 130 and is configured to detect the liquid level of the colorant 30 in the first chamber 130 .

[0118] In this way, it is easy to grasp the liquid level of the colorant 30 in the first chamber 130 , so as to control the fiber coloring process according to the liquid level of the colorant 30 in the first chamber 130 .

[0119] In some possible implementations, the first container device 100 may have a first observation window, so that the situation in the first chamber 130 can be observed from outside the first container device 100 , thereby facilitating the acquisition of information such as the liquid level in the first chamber 130 .

[0120] In some possible implementations, a filter 122 is provided at the first communication port 121 .

[0121] In this way, when the colorant 30 in the first chamber 130 flows back to the second chamber 430, the colorant 30 can be filtered, so that the fallen fibers and other debris are not easily flowed out of the first chamber 130 along with the colorant 30, and problems such as blockage of the flow path between the first chamber 130 and the second chamber 430 or failure of the first switch valve 300 are not easily caused.

[0122] In some possible implementations, the fiber coloring device further includes a material rack 140 . The material rack 140 is disposed in the first chamber 130 , and the material rack 140 is used to fix the hollow fiber material 20 .

[0123] In this way, the material rack 140 can support the hollow fiber material 20 to facilitate the colorant 30 to enter the inner cavity of the target fiber. In addition, after the hollow fiber material 20 is fixed by the material rack 140, it is not easy to shake, which is conducive to the stable coloring of the hollow fiber material 20 by the colorant 30.

[0124] like Figure 1 As shown, in some possible embodiments, the air pressure regulating assembly 200 includes a second on-off valve 210, a third on-off valve 220, a first vacuum pump 230, and a gas supply device 240. The first container device 100 also has a second communication port 1111 and a third communication port 1112, both of which are connected to the first chamber 130. The second communication port 1111 is connected to one end of the second on-off valve 210, and the other end of the second on-off valve 210 is connected to the first vacuum pump 230. The first vacuum pump 230 is used to extract the gas in the first chamber 130 through the opened second on-off valve 210 and the second communication port 1111 to reduce the air pressure in the first chamber 130. The third connecting port 1112 is connected to one end of the third switch valve 220, and the other end of the third switch valve 220 is connected to the gas supply device 240. The gas supply device 240 is used to supply gas into the first chamber 130 through the opened third switch valve 220 and the third connecting port 1112 to increase the gas pressure in the first chamber 130.

[0125] In this way, it is convenient to adjust the air pressure of the first chamber 130 .

[0126] When the first opening and closing valve 300 , the second opening and closing valve 210 , and the third opening and closing valve 220 are all closed, the first chamber 130 can be a sealed chamber.

[0127] When the first opening and closing valve 300 is closed, the second opening and closing valve 210 is opened, and the third opening and closing valve 220 is closed, the gas in the first chamber 130 can be pumped out by the first vacuum pump 230 to reduce the gas pressure in the first chamber 130 .

[0128] When the first on-off valve 300 and the second on-off valve 210 are closed and the third on-off valve 220 is opened, gas may be supplied into the first chamber 130 through the gas supply device 240 to increase the gas pressure in the first chamber 130 .

[0129] Exemplarily, the gas supply device 240 may be an air supply device or a nitrogen supply device for supplying air or nitrogen into the first chamber 130 .

[0130] Illustratively, the gas supply device 240 may include a high-pressure gas cylinder, and an output end of the high-pressure gas cylinder is connected to the third switch valve 220 .

[0131] Exemplarily, the air supply device 240 may further include an air compressor connected to a high-pressure gas cylinder, and the air compressor may supply compressed air to the high-pressure gas cylinder.

[0132] In some examples, the second communication port 1111 may be located at the upper portion of the first container device 100 , and the highest liquid level in the first chamber 130 may be located below the second communication port 1111 , making it difficult to draw the liquid in the first chamber 130 into the first vacuum pump 230 .

[0133] In some examples, the third communication port 1112 can be located at the top of the first container device 100, with the highest liquid level in the first chamber 130 located below the third communication port 1112. This allows the gas supplied by the gas supply device 240 to pressurize the liquid level of the colorant 30, thereby forcing the colorant 30 into the inner lumen of the target fiber. Furthermore, the problem of difficulty or uneven filling of the colorant 30 into the target fiber due to the gas content of the colorant 30 increased by the gas supplied by the gas supply device 240 is less likely to occur.

[0134] In some other possible implementations, the air pressure regulating assembly 200 may also include a piston mechanism, which is in communication with the first chamber 130 , and the air pressure in the first chamber 130 may be regulated by the piston movement of the piston mechanism.

[0135] like Figure 1As shown, in some examples where the gas pressure regulating assembly 200 includes a second on-off valve 210, a third on-off valve 220, a first vacuum pump 230, and a gas supply device 240, the first container device 100 includes a first outer container 110 and a first inner container 120. The first outer container 110 has a first chamber 130 therein, and the first inner container 120 is disposed within the first chamber 130. The first chamber 130 includes a first space 131 located within the first inner container 120 and a second space 132 located outside the first inner container 120. The first inner container 120 has a first opening at the top, communicating with the first space 131 and the second space 132 through the first opening. The first space 131 is used to hold the hollow fiber material 20 and the liquid colorant 30, so that the colorant 30 can submerge the hollow fiber material 20. The first inner container 120 has a first communication port 121, which communicates with the first space 131. The first outer container 110 has a second communication port 1111 and a third communication port 1112 , and both the second communication port 1111 and the third communication port 1112 are in communication with the second space 132 .

[0136] In this way, the first space 131 communicates with the second space 132 through the first opening at the top, making it difficult for the colorant 30 and hollow fiber material 20 loaded in the first space 131 to enter the second space 132. The second communication port 1111 communicates with the first space 131 through the second space 132 and the first opening, making it difficult for the colorant 30 and hollow fiber material 20 to be drawn into the first vacuum pump 230. The third communication port 1112 communicates with the first space 131 through the second space 132 and the first opening, allowing the gas supplied by the gas supply device 240 to pressurize the liquid level of the colorant 30, thereby forcing the colorant 30 into the inner cavity of the target fiber. Furthermore, the problem of difficulty or uneven filling of the colorant 30 into the target fiber due to the gas content of the colorant 30 increased by the gas supplied by the gas supply device 240 is less likely to occur. In addition, the positions of the second communication port 1111 and the third communication port 1112 are relatively flexible. The second communication port 1111 and the third communication port 1112 can be arranged below the liquid level in the first chamber 130 .

[0137] The first outer container 110 is a pressure-resistant container that can withstand pressure changes from negative pressure to positive pressure. For example, the first outer container 110 can withstand pressure changes from vacuum to greater than or equal to 1 MPa.

[0138] Illustratively, the first communication port 121 is located at the bottom of the first inner container 120 .

[0139] Exemplarily, the material rack 140 is disposed in the first space 131 , and the material rack 140 is connected to the first inner container 120 .

[0140] Illustratively, the filter 122 is detachably connected to the first inner container 120 .

[0141] In some examples, the first air pressure detection device 710 may be disposed on the first outer container 110 .

[0142] In some examples, the first liquid level detection device may be disposed on the first inner container 120 .

[0143] In other examples, the first liquid level detection device may be disposed on the top of the first outer container 110 .

[0144] In some examples, the first outer container 110 has a first viewing window.

[0145] Figure 4 A schematic diagram of a colorant storage device provided in an embodiment of the present application.

[0146] like Figure 4 As shown, in some possible implementations, the colorant storage device 10 further includes a stirring mechanism 500 . The stirring mechanism 500 is disposed in the second chamber 430 , and is used to stir the colorant 30 stored in the second chamber 430 .

[0147] In this way, the stirring mechanism 500 can expel gas from the colorant 30 in the second chamber 430, thereby reducing the gas content of the colorant 30. This reduces the risk of problems such as difficulty or uneven filling of the colorant 30 into the target fibers due to a high gas content in the colorant 30. Furthermore, pigments that have settled due to long-term static conditions can be mixed evenly, facilitating uniform coloring of the target fibers.

[0148] In some examples, gas exhausted from the colorant 30 by stirring by the stirring mechanism 500 may be exhausted from the second chamber 430 through the fifth communication port 4121 .

[0149] In some possible embodiments, the second container device 400 is a pressure-resistant container device that can withstand pressure changes from negative to positive. The colorant storage device 10 also includes a fourth on-off valve 610, a fifth on-off valve 620, and a second vacuum pump 630. The fifth communication port 4121 is connected to the fourth on-off valve 610. The second container device 400 also has a sixth communication port 4111, which communicates with the second chamber 430. The sixth communication port 4111 is connected to one end of the fifth on-off valve 620, and the other end of the fifth on-off valve 620 is connected to the second vacuum pump 630. The second vacuum pump 630 is used to extract gas from the second chamber 430 through the open fifth on-off valve 620 and the sixth communication port 4111.

[0150] In this way, the gas in the second chamber 430 is extracted by the second vacuum pump 630, thereby facilitating the discharge of the gas stirred from the colorant 30 by the stirring mechanism 500 out of the second chamber 430. Furthermore, the second vacuum pump 630 can reduce the pressure in the second chamber 430 to a negative pressure, thereby facilitating the extraction of gas from the colorant 30 during the stirring process by the stirring mechanism 500, thereby reducing the gas content in the colorant 30.

[0151] When the first opening and closing valve 300 , the fourth opening and closing valve 610 , and the fifth opening and closing valve 620 are all closed, the second chamber 430 can be a sealed chamber.

[0152] When the first opening and closing valve 300 is closed, the fourth opening and closing valve 610 is closed, and the fifth opening and closing valve 620 is opened, the gas in the second chamber 430 can be pumped out by the second vacuum pump 630 to reduce the gas pressure in the second chamber 430 .

[0153] During the coloring process of the hollow fiber material 20 , the fourth switch valve 610 can be opened to allow gas to flow into and out of the second chamber 430 through the fifth connecting port 4121 . At this time, the fifth switch valve 620 and the second vacuum pump 630 can both be closed.

[0154] The fourth on-off valve 610 can be detachably connected to the gas collection device. During the coloring process of the hollow fiber material 20, the fifth communication port 4121 can be detachably connected to the gas collection device via the fourth on-off valve 610. After the coloring of the hollow fiber material 20 is completed, the gas collection device can be removed from the fourth on-off valve 610.

[0155] The fourth on-off valve 610 can be detachably connected to a colorant supply device. When the colorant 30 needs to be added to the second chamber 430, the fifth communication port 4121 can be detachably connected to the colorant supply device via the fourth on-off valve 610. After the colorant 30 is added to the second chamber 430, the colorant supply device can be removed from the fourth on-off valve 610.

[0156] In some possible implementations, the fiber coloring apparatus further includes a second air pressure detection device 720 . The second air pressure detection device 720 is disposed in the second chamber 430 , and is used to detect the air pressure in the second chamber 430 .

[0157] In this way, it is easy to grasp the air pressure in the second chamber 430, so as to control the fiber coloring process according to the air pressure in the second chamber 430.

[0158] In some possible implementations, the fiber coloring apparatus further includes a second liquid level detection device, which is disposed in the second chamber 430 and is configured to detect the liquid level of the colorant 30 in the second chamber 430 .

[0159] In this way, it is easy to grasp the liquid level of the colorant 30 in the second chamber 430, so as to control the fiber coloring process according to the liquid level of the colorant 30 in the second chamber 430.

[0160] In some possible implementations, the second container device 400 may have a second observation window, so that the situation inside the second chamber 430 can be observed from outside the second container device 400 , thereby facilitating the acquisition of information such as the liquid level inside the second chamber 430 .

[0161] In some examples, the sixth communication port 4111 may be located at the upper portion of the second container device 400 , and the highest liquid level in the second chamber 430 may be located below the sixth communication port 4111 , making it difficult to draw the liquid in the second chamber 430 into the second vacuum pump 630 .

[0162] In some possible embodiments, the second container device 400 includes a second outer container 410 and a second inner container 420. The second outer container 410 has a second chamber 430 therein, and the second inner container 420 is disposed within the second chamber 430. The second chamber 430 includes a third space 431 located within the second inner container 420 and a fourth space 432 located outside the second inner container 420. The top of the second inner container 420 has a third opening, connecting the third space 431 and the fourth space 432 through the third opening. The third space 431 is used to store liquid colorant 30. A stirring mechanism 500 is disposed within the third space 431 and is used to stir the colorant 30 stored in the third space 431. The second inner container 420 has a fourth communication port 421, which communicates with the third space 431. The second outer container 410 has a fifth communication port 4121 and a sixth communication port 4111, which communicates with the fourth space 432.

[0163] In this way, the third space 431 is connected to the fourth space 432 through the opening at the third top, and the colorant 30 contained in the third space 431 is not easily introduced into the fourth space 432. The sixth communication port 4111 is connected to the third space 431 through the fourth space 432 and the third opening, and the colorant 30 is not easily drawn into the second vacuum pump 630. Furthermore, the position of the sixth communication port 4111 is relatively flexible and can be positioned below the liquid level in the second chamber 430.

[0164] The second outer container 410 is a pressure-resistant container, and the second outer container 410 can withstand pressure changes from negative pressure to positive pressure.

[0165] Illustratively, the fourth communication port 421 is located at the bottom of the second inner container 420 .

[0166] In some examples, the second air pressure detection device 720 may be disposed on the second outer container 410 .

[0167] In some examples, the second liquid level detection device may be disposed on the second inner container 420 .

[0168] In other examples, the second liquid level detection device may be disposed on the top of the second outer container 410 .

[0169] In some examples, the second outer container 410 has a second viewing window.

[0170] Figure 5 This is a schematic diagram of the external view of a fiber coloring device provided in an embodiment of the present application. Figure 6 for Figure 5 Another external schematic diagram of the fiber coloring device provided in Figure 7 This is a cross-sectional schematic diagram of a fiber coloring device provided in an embodiment of the present application.

[0171] In some possible embodiments, the first outer container 110 may be a can-shaped structure, and the first outer container 110 may include a first can body 111 and a first can lid 112. The top of the first can body 111 has a second opening, and the first can lid 112 is connected to the top of the first can body 111 as an openable and closable cover. The first can lid 112 covers the second opening. The first can body 111 and the first can lid 112 are used to form a first chamber 130, and the first inner container 120 is connected to the first can body 111.

[0172] Thus, the hollow fiber material 20 can be easily accessed through the second opening. Furthermore, the first tank cover 112 is attached to the top of the first tank body 111, which helps to maintain the pressure of the first outer container 110. This also facilitates cleaning and maintenance of the first chamber 130.

[0173] For example, the first outer container 110 may be a first vacuum tank.

[0174] Illustratively, the first tank cover 112 may be detachably connected to the first tank body 111 , that is, the first tank cover 112 may be detached from the first tank body 111 as a whole.

[0175] Exemplarily, the first outer container 110 further includes a first locking mechanism 113, and the first tank cover 112 and the first tank body 111 are locked by the first locking mechanism 113. After the first locking mechanism 113 releases the lock on the first tank cover 112 and the first tank body 111, the first tank cover 112 can be opened from the first tank body 111, so that the hollow fiber material 20 can be taken out and placed through the second opening.

[0176] When the air pressure in the first chamber 130 is negative, the first can lid 112 is adsorbed on the first can body 111 by the negative pressure in the first chamber 130 .

[0177] When the air pressure in the first chamber 130 is positive, the first tank cover 112 and the first tank body 111 are locked by the first locking mechanism 113 , and the first locking mechanism 113 can limit the relative movement of the first tank cover 112 and the first tank body 111 .

[0178] In some examples, the first tank cover 112 may be detachably connected to the first tank body 111 via a first locking mechanism 113 .

[0179] In other examples, the first tank cover 112 may be hinged to the first tank body 111 .

[0180] In some examples, the material rack 140 may be connected to the first inner container 120 via a first lifting mechanism, and the first lifting mechanism may lift the material rack 140 to facilitate taking and placing of the hollow fiber material 20 .

[0181] Illustratively, the first internal container 120 can be connected to the first tank body 111 through a first support assembly, the first support assembly can pass through the first tank body 111, the first support assembly is fixed and sealed to the first tank body 111, and the first support assembly can be supported by the bearing surface outside the first tank body 111.

[0182] In some possible implementations, the second communication port 1111 and the third communication port 1112 are both located on the first tank body 111 .

[0183] In this way, the second communication port 1111 and the third communication port 1112 will not shift with the opening and closing of the first tank cover 112, which is conducive to the connection between the second switch valve 210, the third switch valve 220, the first vacuum pump 230 and the air supply device 240 and the first external container 110.

[0184] Exemplarily, the second communication port 1111 and the third communication port 1112 are both located below the first opening, and the second communication port 1111 and the third communication port 1112 are both communicated with the annular space between the first tank body 111 and the side wall of the first inner container 120 .

[0185] Illustratively, the second communication port 1111 is located below the third communication port 1112 .

[0186] For example, the first inner container 120 may be a trough-shaped structure, and the trough wall of the first inner container 120 is used to separate the first space 131 from the second space 132 to prevent the colorant 30 in the first space 131 from flowing into the second space 132 .

[0187] Illustratively, the first inner container 120 is located in the first tank body 111 , and the first opening is located below the second opening.

[0188] In some possible embodiments, the second outer container 410 may be a can-shaped structure, and may include a second can body 411 and a second can lid 412. The top of the second can body 411 has a fourth opening, and the second can lid 412 is connected to the top of the second can body 411 with a retractable lid. The second can lid 412 seals the fourth opening, and the second can body 411 and the second can lid 412 are used to form a second chamber 430.

[0189] Like this, be convenient to carry out work such as cleaning, overhauling to the second chamber 430. In addition, the second tank cover 412 is connected to the top of the second tank body 411, is beneficial to the pressure bearing of the second outer container 410.

[0190] For example, the second outer container 410 may be a second vacuum tank.

[0191] Illustratively, the second tank cover 412 may be detachably connected to the second tank body 411 , that is, the second tank cover 412 may be detached from the second tank body 411 as a whole.

[0192] Illustratively, the second outer container 410 further includes a second locking mechanism 413 , and the second tank cover 412 and the second tank body 412 are locked by the second locking mechanism 413 . After the second locking mechanism 413 releases the lock on the second tank cover 412 and the second tank body 411 , the second tank cover 412 can be opened from the second tank body 411 .

[0193] When the air pressure in the second chamber 430 is negative, the second tank cover 412 is adsorbed on the second tank body 411 by the negative pressure in the second chamber 430 .

[0194] When the air pressure in the second chamber 430 is positive, the second tank cover 412 and the second tank body 411 are locked by the second locking mechanism 413 , and the second locking mechanism 413 can limit the relative movement between the second tank cover 412 and the second tank body 411 .

[0195] In some examples, the second tank cover 412 may be detachably connected to the second tank body 411 via a second locking mechanism 413 .

[0196] Illustratively, the second inner container 420 can be connected to the second tank body 411 through a second support assembly, the second support assembly can pass through the second tank body 411, the second support assembly can be fixed and sealed to the second tank body 411, and the second support assembly can be supported by the bearing surface outside the second tank body 411.

[0197] In some possible implementations, the sixth communication ports 4111 are all located on the second tank body 411 .

[0198] In this way, the sixth communication port 4111 will not shift as the second tank cover 412 opens and closes, which facilitates the connection between the fifth opening and closing valve 620 and the second vacuum pump 630 and the second outer container 410 .

[0199] Exemplarily, the sixth communication port 4111 is located below the third opening, and the sixth communication port 4111 is in communication with the annular space between the second tank body 411 and the side wall of the second inner container 420 .

[0200] Illustratively, the fifth communication port 4121 is provided on the second tank cover 412 .

[0201] Illustratively, the second inner container 420 may be a trough-shaped structure, and the trough wall of the second inner container 420 is used to separate the third space 431 from the fourth space 432 to prevent the colorant 30 in the third space 431 from flowing into the fourth space 432 .

[0202] Illustratively, the second inner container 420 is located in the second tank body 411 , and the third opening is located below the fourth opening.

[0203] Figure 8 This is a cross-sectional schematic diagram of another fiber coloring device provided in an embodiment of the present application.

[0204] like Figure 8 As shown, and see Figure 5-Figure 7 In some examples, the colorant storage device 10 further includes a stirring motor 510 , which can be disposed on the second tank cover 412 . The stirring motor 510 can be connected to the stirring mechanism 500 via a transmission rod 520 , and the stirring motor 510 is used to drive the stirring mechanism 500 to rotate via the transmission rod 520 .

[0205] In some examples, the colorant storage device 10 further includes a pressure relief valve 640 provided on the second outer container 410 .

[0206] For example, the pressure relief valve 640 may be provided on the second tank cover 412 .

[0207] In some possible implementations, the first inner container 120 is detachably connected to the first tank body 111 , and the first switch valve 300 is detachably connected to the first communication port 121 .

[0208] In this way, when different colorants 30 are used for coloring, the corresponding first inner container 120 can be replaced to prevent different colorants 30 from being loaded into the same first inner container 120 and affecting each other. In addition, the first inner container 120 can be removed from the first tank body 111 for inspection and cleaning, making inspection and cleaning of the first inner container 120 relatively easy.

[0209] In some examples, the first inner container 120 may be detachably connected to the first support assembly so as to be detachably connected to the first tank body 111 through the first support assembly.

[0210] In other examples, the first container device 100 may also include a second lifting mechanism, which is arranged in the first tank body 111 and connected to the first tank body 111. The first internal container 120 is detachably connected to the second lifting mechanism. The first internal container 120 is detachably connected to the first tank body 111 through the second lifting mechanism. The second lifting mechanism can lift and lower the first internal container 120 to facilitate disassembly and assembly of the first internal container 120 in the first tank body 111.

[0211] In some possible embodiments, the fiber coloring apparatus further includes a first connecting tube 310. The first tank 111 has a first through-hole. The first connecting tube 310 is disposed within the first through-hole and is sealedly connected to the first tank 111. One end of the first connecting tube 310 is located within the first tank 111 and is detachably connected to the first communication port 121. The other end of the first connecting tube 310 is located outside the first tank 111 and is connected to the first on-off valve 300. The first on-off valve 300 is detachably connected to the first communication port 121 via the first connecting tube 310.

[0212] In this way, the first switching valve 300 is located outside the first chamber 130 , and the performance of the first switching valve 300 is not affected by the pressure change in the first chamber 130 .

[0213] In some possible implementations, the second inner container 420 is detachably connected to the second tank body 411 , and the first switch valve 300 is detachably connected to the fourth communication port 421 .

[0214] In this way, when different colorants 30 are used for coloring, the corresponding second inner container 420 can be replaced to prevent different colorants 30 from affecting each other when loaded into the same second inner container 420. In addition, the second inner container 420 can be removed from the second tank body 411 for inspection and cleaning, making inspection and cleaning of the second inner container 420 easier.

[0215] In some examples, the second inner container 420 may be detachably connected to the second support assembly so as to be detachably connected to the second tank body 411 through the second support assembly.

[0216] In other examples, the second container device 400 may also include a third lifting mechanism, which is arranged in the second tank body 411 and connected to the second tank body 411. The second internal container 420 is detachably connected to the third lifting mechanism. The second internal container 420 is detachably connected to the second tank body 411 through the third lifting mechanism. The third lifting mechanism can lift the second internal container 420 to facilitate disassembly and assembly of the second internal container 420 in the second tank body 411.

[0217] In some possible embodiments, the fiber coloring apparatus further includes a second connecting pipe 320. The second tank 411 has a second pipe-through hole, and the second connecting pipe 320 is disposed within the second pipe-through hole and is sealedly connected to the second tank 411. One end of the second connecting pipe 320 is located within the second tank 411 and is removably connected to the fourth communication port 421. The other end of the second connecting pipe 320 is located outside the second tank 411 and is connected to the first on-off valve 300. The first on-off valve 300 is removably connected to the fourth communication port 421 via the second connecting pipe 320.

[0218] In this way, the first switching valve 300 is located outside the second chamber 430 , and the performance of the first switching valve 300 is not affected by the pressure change in the second chamber 430 .

[0219] In some possible implementations, the fifth communication port 4121 is located at the top of the second outer container 410 , and a projection of the fifth communication port 4121 along the vertical direction is located within a projection of the third opening along the vertical direction.

[0220] In this way, the colorant 30 can be easily injected into the third space 431 through the fifth communication port 4121 , without the need to provide an additional communication port for injecting the colorant 30 .

[0221] Figure 9 This is a cross-sectional schematic diagram of another fiber coloring device provided in an embodiment of the present application.

[0222] like Figure 9 As shown, in some possible embodiments, a flow guide tube 440 is provided in the second chamber 430, one end of the flow guide tube 440 is connected to the fifth connecting port 4121, and the other end of the flow guide tube 440 is located in the third space 431. The fifth connecting port 4121 is connected to the third space 431 through the flow guide tube 440, and the flow guide tube 440 is located above the stirring mechanism 500.

[0223] In this way, the colorant 30 can be easily injected into the third space 431 through the fifth communication port 4121 , and the colorant 30 injected into the second chamber 430 through the fifth communication port 4121 is unlikely to flow into the fourth space 432 .

[0224] Figure 10This is a process flow chart of a fiber coloring method provided in an embodiment of the present application.

[0225] like Figure 10 As shown, the embodiment of the present application also provides a fiber coloring method, using the fiber coloring device in any of the above embodiments. The method includes the steps of:

[0226] S100: After the hollow fiber material 20 is loaded into the first chamber 130 of the fiber coloring device, the air pressure in the first chamber 130 is reduced to a first preset value through the air pressure regulating assembly 200 of the fiber coloring device, wherein the openings at both ends of the target fiber of the hollow fiber material 20 are connected to the first chamber 130, and the first preset value is less than 1 standard atmospheric pressure.

[0227] In this way, when the air pressure in the first chamber 130 is reduced to the first preset value, the gas in the inner cavity of the target fiber is extracted, and the air pressure in the inner cavity of the target fiber is reduced, thereby reducing the resistance caused by the gas in the inner cavity of the target fiber to the flow of the colorant 30 into the inner cavity of the target fiber.

[0228] For example, after the first tank cover 112 is opened, the hollow fiber material 20 is loaded into the first chamber 130 through the second opening. Before the first tank cover 112 is opened, the first on-off valve 300 is in a closed state. After the hollow fiber material 20 is loaded into the first chamber 130, the first tank cover 112 is attached to the first tank body 111, and the first tank cover 112 covers the second opening.

[0229] Illustratively, the hollow fiber material 20 is loaded into the first space 131 .

[0230] For example, after the first tank cover 112 is connected to the first tank body 111, the second switch valve 210 can be opened, the first switch valve 300 can be closed, and the first vacuum pump 230 can be turned on, so that the first vacuum pump 230 can extract the gas in the first chamber 130 to reduce the air pressure in the first chamber 130 to a first preset value.

[0231] S200 : After the air pressure in the first chamber 130 drops to a first preset value, the first on-off valve 300 of the fiber coloring device is switched from a closed state to an open state, so that the liquid colorant 30 enters the first chamber 130 through the first communication port 121 of the fiber coloring device.

[0232] In this way, after the first switch valve 300 is opened, the colorant 30 stored in the second chamber 430 can flow into the first chamber 130 under the attraction of the negative pressure in the first chamber 130, so as to facilitate the injection of the colorant 30 into the first chamber 130. In the process of gradually immersing the hollow fiber material 20, due to the pressure difference between the inner cavity of the target fiber and the first chamber 130, the colorant 30 will be pressed into the inner cavity of the target fiber, so that at least part of the inner cavity of the target fiber will be filled with the colorant 30.

[0233] Illustratively, after the air pressure in the first chamber 130 drops to the first preset value, the second switch valve 210 and the first vacuum pump 230 are maintained in an open state to maintain the air pressure in the first chamber 130 at the first preset value.

[0234] Exemplarily, the colorant 30 enters the first space 131 .

[0235] Illustratively, when the first switch valve 300 is opened, the fourth switch valve 610 is in an open state.

[0236] S300 : After the hollow fiber material 20 loaded in the first chamber 130 is immersed in the colorant 30 , the first on-off valve 300 is switched from an open state to a closed state to stop injecting the colorant 30 into the first chamber 130 .

[0237] S400: After the first switch valve 300 is switched from the open state to the closed state, the air pressure in the first chamber 130 is increased to a second preset value through the air pressure regulating component 200, wherein the second preset value is greater than 1 standard atmospheric pressure.

[0238] In this way, the pressure difference between the inner cavity of the target fiber and the first chamber 130 can be increased, which is conducive to further pressing the colorant 30 into the inner cavity of the target fiber to fill the part of the inner cavity of the target fiber that is not filled with the colorant 30. The larger pressure difference between the inner cavity of the target fiber and the first chamber 130 is conducive to the colorant 30 overcoming the resistance in the target fiber and filling the inner cavity of the target fiber.

[0239] For example, after the hollow fiber material 20 loaded in the first chamber 130 is immersed in the colorant 30, the first vacuum pump 230 and the second switch valve 210 can be closed, and the third switch valve 220 and the gas supply device 240 can be opened to allow the gas supply device 240 to supply gas into the first chamber 130 to increase the air pressure in the first chamber 130 to a second preset value.

[0240] For example, the gas supplied into the first chamber 130 by the gas supply device 240 may be air or nitrogen.

[0241] S500: After the air pressure in the first chamber 130 is increased to a second preset value, the air pressure in the first chamber 130 is maintained at the second preset value for a preset time, so that the inner cavity of the target fiber is filled with the liquid colorant 30 to obtain a colored fiber material intermediate.

[0242] In this way, time is provided for the liquid colorant 30 to flow in the target fiber, so that the inner cavity of the target fiber is filled with the liquid colorant 30 .

[0243] For example, after the air pressure in the first chamber 130 is increased to a second preset value, the third switch valve 220 and the air supply device 240 may be closed to put the first chamber 130 into a sealed state.

[0244] S600 : performing post-processing on the colored fiber material intermediate to obtain a colored fiber material, wherein the colored fiber material includes target fibers and a colorant 30 , and the inner wall of the target fibers is covered by the colorant 30 .

[0245] In this way, the air pressure in the first chamber 130 can be converted between positive pressure and negative pressure through the air pressure regulating component 200, so as to extract the air in the inner cavity of the target fiber and provide a greater pressure for the liquid colorant 30 to be pressed into the inner cavity of the target fiber, thereby reducing the resistance of the gas in the inner cavity of the target fiber to the flow of the colorant 30 into the inner cavity of the target fiber, and also making it easier for the colorant 30 to overcome the resistance in the target fiber and fill the inner cavity of the target fiber, so as to color various positions of the target fiber, so as to obtain a colored fiber material with the inner wall of the target fiber covered with the colorant 30.

[0246] It will be understood by those skilled in the art that, due to reasons such as the solidification shrinkage of the colorant 30 and the overflow of the colorant 30 during the post-processing process of the colored fiber material intermediate, a certain error is allowed in covering the inner wall of the target fiber with the colorant 30. For example, 95% of the inner wall of the target fiber is covered with the colorant 30, or 98% of the inner wall of the target fiber is covered with the colorant 30, etc. should be understood as the inner wall of the target fiber is covered with the colorant 30.

[0247] In some possible implementations, the first preset value is less than 1 Pa.

[0248] In this way, the gas in the target fiber can be evacuated before the colorant 30 enters the inner cavity of the target fiber, so that the colorant 30 can fill the inner cavity of the target fiber.

[0249] In some possible implementations, the second preset value is greater than or equal to 0.2 MPa and less than or equal to 1 MPa.

[0250] In this way, a larger pressure difference can be created between the inner cavity of the target fiber and the first chamber 130, which facilitates the inner cavity of the target fiber to be filled with the colorant 30. In addition, this is also beneficial to the safe operation of the device.

[0251] In some possible implementations, the preset time is greater than or equal to 30 minutes.

[0252] In this way, sufficient time is provided for the liquid colorant 30 to flow in the target fiber, so that the inner cavity of the target fiber is filled with the liquid colorant 30.

[0253] In some possible implementations, before step S200, the following steps are further included:

[0254] S700 : The liquid colorant 30 stored in the second chamber 430 of the fiber coloring device is stirred by the stirring mechanism 500 of the fiber coloring device.

[0255] In this way, the gas in the colorant 30 in the second chamber 430 can be discharged, thereby reducing the gas content in the colorant 30. This reduces the risk of problems such as difficulty or uneven filling of the colorant 30 into the target fiber due to a large gas content in the colorant 30. Furthermore, pigments that have settled due to long-term static storage can be mixed evenly, thereby facilitating uniform coloring of the target fiber.

[0256] In some possible implementations, before step S200, the following steps are further included:

[0257] S800: Close the fourth on-off valve 610 of the fiber coloring device, open the fifth on-off valve 620 of the fiber coloring device and the second vacuum pump 630 of the fiber coloring device, and reduce the air pressure in the second chamber 430 to a third preset value, wherein the third preset value is less than 1 standard atmospheric pressure.

[0258] In this way, the gas in the second chamber 430 is extracted by the second vacuum pump 630, thereby facilitating the discharge of the gas stirred from the colorant 30 by the stirring mechanism 500 out of the second chamber 430. Furthermore, the second vacuum pump 630 can reduce the pressure in the second chamber 430 to a negative pressure, thereby facilitating the extraction of gas from the colorant 30 during the stirring process by the stirring mechanism 500, thereby reducing the gas content in the colorant 30.

[0259] Illustratively, when the second vacuum pump 630 and the fifth switch valve 620 are turned on, the fourth switch valve 610 is in a closed state.

[0260] For example, after the stirring mechanism 500 stirs for a set time, the stirring mechanism 500, the second vacuum pump 630 and the fifth switch valve 620 can be closed, and the fourth switch valve 610 can be opened to adjust the air pressure in the second chamber 430 to a normal pressure state. After the air pressure in the second chamber 430 is adjusted to a normal pressure state, step S200 is executed.

[0261] In some possible implementations, after step S500, the following steps are further included:

[0262] S900 : The first on-off valve 300 is switched from the closed state to the open state, and the colorant 30 in the first chamber 130 is discharged through the first communication port 121 by utilizing the air pressure in the first chamber 130 .

[0263] In this way, after the hollow fiber material 20 is colored, the colorant 30 can be discharged to facilitate taking out the colored fiber material intermediate.

[0264] For example, after the colorant 30 in the first chamber 130 is completely discharged, the first switch valve 300 can be switched from an open state to a closed state, and then the first tank cover 112 is opened to take the colored fiber material intermediate out of the first chamber 130 through the second opening.

[0265] For example, after the colorant 30 in the first chamber 130 is completely discharged, the second on-off valve 210 may be opened to adjust the pressure in the first chamber 130 to a normal pressure state.

[0266] For example, the colorant 30 discharged from the first chamber 130 returns to the second chamber 430 , and the colorant 30 returned to the second chamber 430 can be reused in the next coloring.

[0267] Exemplarily, step S600 may include: cleaning the surface of the colored fiber material intermediate to remove the colorant 30 on the surface of the colored fiber material intermediate.

[0268] In some possible implementations, the colorant 30 is a resin-based colorant.

[0269] In this way, the obtained colored fiber material is not easy to fade or change color.

[0270] When the colorant 30 is a resin-based colorant, step S600 includes: curing the colorant 30 .

[0271] Depending on the type of the colorant 30 , the colorant 30 may be cured by light curing or heat curing.

[0272] In some other possible implementations, the colorant 30 is a water-based colorant. Step S600 includes: sealing the openings at both ends of the target fiber of the colored fiber material intermediate.

[0273] Like this, the viscosity of liquid colorant 30 is less, is conducive to filling the inner cavity of target fiber.In addition, easily cause the colored fiber material to fade, change color and other problems because of the reasons such as non-volatility of water-based colorant.

[0274] In some other possible implementations, step S600 may include: drying the colored fiber material intermediate so that the colorant 30 adheres to the inner wall of the target fiber.

[0275] In the description of the embodiments of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this application based on specific circumstances.

[0276] In the embodiments of the present application, any device or element referred to or implied must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless otherwise specifically specified.

[0277] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of the embodiments of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the embodiments of the present application described herein can, for example, be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0278] The term "plurality" in this document refers to two or more. The term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. Furthermore, the character " / " in this document generally indicates an "or" relationship between the related objects; in a formula, the character " / " indicates a "division" relationship between the related objects.

[0279] It will be understood that the various numerical numbers involved in the embodiments of the present application are merely distinctions for the convenience of description and are not intended to limit the scope of the embodiments of the present application.

[0280] It can be understood that in the embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Claims

1. A fiber coloring device, characterized in that: It comprises a first container device (100), an air pressure regulating assembly (200) and a first switch valve (300); The first container device (100) has a first chamber (130) therein, and the first chamber (130) is used to load the hollow fiber material (20) and the liquid colorant (30), so that the colorant (30) can immerse the hollow fiber material (20); The first container device (100) further comprises a first communication port (121), the first communication port (121) being in communication with the first chamber (130), the first communication port (121) being connected to one end of the first switch valve (300), and the other end of the first switch valve (300) being connected to the colorant storage device (10); The air pressure regulating assembly (200) is connected to the first container device (100), and the air pressure regulating assembly (200) is used to regulate the air pressure in the first chamber (130) so that the air pressure in the first chamber (130) can be converted between positive pressure and negative pressure.

2. The fiber coloring device according to claim 1, characterized in that: The air pressure regulating assembly (200) comprises a second on-off valve (210), a third on-off valve (220), a first vacuum pump (230) and an air supply device (240); The first container device (100) further has a second communication port (1111) and a third communication port (1112), and the second communication port (1111) and the third communication port (1112) are both in communication with the first chamber (130); The second communication port (1111) is connected to one end of the second switch valve (210), and the other end of the second switch valve (210) is connected to the first vacuum pump (230). The first vacuum pump (230) is used to extract the gas in the first chamber (130) through the opened second switch valve (210) and the second communication port (1111); The third communication port (1112) is connected to one end of the third switch valve (220), and the other end of the third switch valve (220) is connected to the gas supply device (240). The gas supply device (240) is used to supply gas into the first chamber (130) through the opened third switch valve (220) and the third communication port (1112).

3. The fiber coloring device according to claim 2, characterized in that: The first container device (100) includes a first outer container (110) and a first inner container (120); The first outer container (110) has the first chamber (130) therein, and the first inner container (120) is disposed in the first chamber (130); The first chamber (130) includes a first space (131) located inside the first inner container (120) and a second space (132) located outside the first inner container (120). The top of the first inner container (120) has a first opening. The first space (131) and the second space (132) are connected through the first opening. The first space (131) is used to load the hollow fiber material (20) and the liquid colorant (30), so that the colorant (30) can immerse the hollow fiber material (20). The first internal container (120) has the first communication port (121), and the first communication port (121) is in communication with the first space (131); The first external container (110) has the second communication port (1111) and the third communication port (1112), and both the second communication port (1111) and the third communication port (1112) are in communication with the second space (132).

4. The fiber coloring device according to claim 3, characterized in that: The first outer container (110) includes a first tank body (111) and a first tank cover (112); The top of the first tank body (111) has a second opening, the first tank cover (112) is connected to the top of the first tank body (111) with an openable and closable cover, and the first tank cover (112) covers the second opening. The first tank body (111) and the first tank cover (112) are used to form the first chamber (130), and the first internal container (120) is connected to the first tank body (111).

5. The fiber coloring device according to claim 4, characterized in that: The second communication port (1111) and the third communication port (1112) are both located on the first tank body (111).

6. The fiber coloring device according to claim 4, characterized in that: The first internal container (120) is detachably connected to the first tank body (111), and the first switch valve (300) is detachably connected to the first communication port (121).

7. The fiber coloring device according to claim 6, characterized in that: Also includes a first connecting pipe (310); The first tank body (111) has a first pipe penetration hole, the first connecting pipe (310) is penetrated in the first pipe penetration hole, and the first connecting pipe (310) is sealedly connected to the first tank body (111); One end of the first connecting pipe (310) is located inside the first tank body (111) and is detachably connected to the first communication port (121); the other end of the first connecting pipe (310) is located outside the first tank body (111) and is connected to the first switch valve (300); the first switch valve (300) is detachably connected to the first communication port (121) via the first connecting pipe (310).

8. The fiber coloring device according to any one of claims 1 to 7, characterized in that: It also includes a material rack (140), which is arranged in the first chamber (130) and is used to fix the hollow fiber material (20).

9. The fiber coloring device according to any one of claims 1 to 7, characterized in that: A filter (122) is provided at the first communication port (121).

10. The fiber coloring device according to any one of claims 1 to 7, characterized in that: The invention also includes a first air pressure detection device (710), wherein the first air pressure detection device (710) is arranged in the first chamber (130), and the first air pressure detection device (710) is used to detect the air pressure in the first chamber (130).

11. The fiber coloring device according to any one of claims 1 to 7, characterized in that: Also included is the colorant storage device (10); The colorant storage device (10) includes a second container device (400); The second container device (400) has a second chamber (430) therein, and the second chamber (430) is used to store the liquid colorant (30); The second container device (400) has a fourth communicating port (421) and a fifth communicating port (4121), both of which are connected to the second chamber (430), the fourth communicating port (421) is connected to the first switch valve (300), and the fifth communicating port (4121) is used to allow gas to enter and exit the second chamber (430).

12. The fiber coloring device according to claim 11, characterized in that: The colorant storage device (10) further includes a stirring mechanism (500); The stirring mechanism (500) is disposed in the second chamber (430), and the stirring mechanism (500) is used to stir the colorant (30) stored in the second chamber (430).

13. The fiber coloring device according to claim 12, characterized in that: The colorant storage device (10) further includes a fourth switching valve (610), a fifth switching valve (620) and a second vacuum pump (630); The fifth communication port (4121) is connected to the fourth switch valve (610); The second container device (400) further has a sixth communication port (4111), which is connected to the second chamber (430), and the sixth communication port (4111) is connected to one end of the fifth switch valve (620), and the other end of the fifth switch valve (620) is connected to the second vacuum pump (630). The second vacuum pump (630) is used to extract the gas in the second chamber (430) through the opened fifth switch valve (620) and the sixth communication port (4111).

14. The fiber coloring device according to claim 13, characterized in that: The second container device (400) includes a second outer container (410) and a second inner container (420); The second outer container (410) has the second chamber (430) therein, and the second inner container (420) is disposed in the second chamber (430); The second chamber (430) includes a third space (431) located inside the second inner container (420) and a fourth space (432) located outside the second inner container (420). The top of the second inner container (420) has a third opening. The third space (431) and the fourth space (432) are connected through the third opening. The third space (431) is used to store the liquid colorant (30). The stirring mechanism (500) is disposed in the third space (431) and is used to stir the colorant (30) stored in the third space (431). The second internal container (420) has the fourth communication port (421), and the fourth communication port (421) is in communication with the third space (431); The second external container (410) has the fifth communication port (4121) and the sixth communication port (4111), and the sixth communication port (4111) is in communication with the fourth space (432).

15. The fiber coloring device according to claim 14, characterized in that: The fifth communication port (4121) is located at the top of the second external container (410), and the projection of the fifth communication port (4121) in the vertical direction is located within the projection of the third opening in the vertical direction.

16. The fiber coloring device according to claim 14, characterized in that A flow guide tube (440) is provided in the second chamber (430), one end of the flow guide tube (440) is connected to the fifth communication port (4121), and the other end of the flow guide tube (440) is located in the third space (431). The fifth communication port (4121) is connected to the third space (431) through the flow guide tube (440), and the flow guide tube (440) is located above the stirring mechanism (500).

17. The fiber coloring device according to claim 14, characterized in that The second outer container (410) includes a second tank body (411) and a second tank cover (412); The top of the second tank body (411) has a fourth opening, the second tank cover (412) is connected to the top of the second tank body (411) with an openable and closable cover, and the second tank cover (412) covers the fourth opening. The second tank body (411) and the second tank cover (412) are used to form the second chamber (430), the second internal container (420) is detachably connected to the second tank body (411), and the first switch valve (300) is detachably connected to the fourth communication port (421).

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