Cloth feeding device suitable for supercritical carbon dioxide dyeing and dyeing system

Abstract

The invention provides a cloth feeding device suitable for supercritical carbon dioxide dyeing and a dyeing system, and relates to the technical field of supercritical carbon dioxide dyeing. The dyeing system comprises a dyeing kettle and a cloth conveying device, the cloth conveying device comprises a separation net and a cloth guide pipe, the separation net is sequentially provided with a cloth feeding section, a cloth storage section and a cloth discharging section from front to back, the cloth storage section is lower than the cloth feeding section and the cloth discharging section, and the density of open pores of the separation net is increased from front to back; the two ends of the cloth guide pipe are connected with the front end and the rear end of the separation net respectively, and the bent section of the cloth guide pipe is connected with a medium outlet of the nozzle and the straight section of the cloth guide pipe. The cloth movement stability can be improved when the rope-shaped dyeing mode is adopted in supercritical carbon dioxide dyeing.

Description

Technical Field

[0001] This invention relates to the field of supercritical carbon dioxide dyeing technology, and in particular to a fabric feeding device and dyeing system suitable for supercritical carbon dioxide dyeing. Background Technology

[0002] Supercritical carbon dioxide dyeing, also known as supercritical CO2 dyeing, is an innovative textile dyeing method that uses liquefied carbon dioxide as the dyeing medium. This process involves liquefying carbon dioxide under extreme conditions far exceeding its critical pressure, during which the dye dissolves while the textile fibers expand, promoting rapid and uniform penetration of the dye molecules. After the dyeing process, the carbon dioxide is volatilized by depressurization, eliminating the need for a washing step and demonstrating its unique advantage as an environmentally friendly dyeing process.

[0003] However, many problems arise when supercritical carbon dioxide dyeing employs the rope dyeing mode. Rope dyeing is a traditional fabric dyeing process that involves bundling the fabric into a rope shape and placing it in a separating net, where it is circulated and dyed using mechanical traction (such as elliptical rollers or guide rollers). Because carbon dioxide has different properties than water, a traditional dyeing medium, the fabric is more easily propelled and prone to swaying, leading to irregular fabric movement, such as more frequent flipping or localized deformation. Summary of the Invention

[0004] In a first aspect, the present invention provides a fabric feeding device suitable for supercritical carbon dioxide dyeing, comprising: The separator is a long cylindrical structure with densely packed openings on all four sides. The separator has a fabric inlet section, a fabric storage section, and a fabric outlet section arranged sequentially from front to back. The fabric storage section is lower than the fabric inlet section and the fabric outlet section. The fabric inlet section and the fabric outlet section are inclinedly connected to the fabric storage section. The transverse dimension of the fabric storage section is larger than the longitudinal dimension. The density of the openings in the separator increases from front to back. The guide tube is a long strip structure. Both ends of the guide tube are connected to the front and rear ends of the separator mesh, respectively. The guide tube is equipped with nozzles, which include an inlet and an outlet. The inlet is used to receive the dyeing medium, and the outlet is used to spray the dyeing medium into the guide tube. The guide tube includes a straight section and a curved section. The curved section connects the outlet of the nozzle and the straight section of the guide tube.

[0005] In an optional implementation, the opening area at the bottom of the feed section of the separator is 3 to 5 times that at the top.

[0006] In an optional implementation, the center-to-center distance of the openings at the rear of the separator is not less than twice the aperture, and the center-to-center distance of the openings at the front of the separator is not greater than eight times the aperture.

[0007] In an alternative implementation, the upper part of the partition net includes a removable cover plate.

[0008] In an optional embodiment, the two ends of the guide tube are provided with curved connecting parts, and the guide tube is connected to the separator mesh through the connecting parts.

[0009] In an optional embodiment, the first end of the guide tube is provided with a curved connecting part, the first end of the guide tube is connected to the separator net through the connecting part, and the second end of the guide tube is provided with a detachable connecting bend or a cloth-carrying wheel.

[0010] In an optional embodiment, the straight section of the guide tube is positioned opposite to the feed section and storage section of the separator mesh in the length direction.

[0011] In an optional embodiment, rollers are also provided on the outer periphery of the fabric feeding device.

[0012] Secondly, the present invention provides a dyeing system suitable for supercritical carbon dioxide dyeing, including a dyeing kettle and a fabric feeding device according to any of the foregoing embodiments. The fabric feeding device is disposed inside the dyeing kettle, the dyeing kettle is provided with a feed inlet, and the inlet of the nozzle is connected to the feed inlet of the dyeing kettle.

[0013] In an optional embodiment, the feed inlet of the dyeing vessel includes a feed pipe, the cylinder of the dyeing vessel is provided with an installation hole, the first end of the feed pipe is provided in the installation hole, a circumferential sealing structure is provided between the first end of the feed pipe and the installation hole, and the second end of the feed pipe is detachably connected to the inlet of the nozzle.

[0014] The fabric feeding device for supercritical carbon dioxide dyeing provided by this invention has the following beneficial effects: 1. The dividing net is arranged from front to back with a fabric inlet section, a fabric storage section, and a fabric outlet section. The fabric storage section is lower than the fabric inlet and outlet sections, and the fabric inlet and outlet sections are inclined to the fabric storage section. This makes the fabric sink and slide forward at an angle under the action of gravity when it moves from the fabric inlet section to the fabric storage section. When the fabric moves from the fabric storage section to the fabric outlet section, it slides forward and upward at an angle. By restricting the movement of the fabric, and the fact that the transverse dimension of the fabric storage section is greater than the longitudinal dimension, it can also restrict the up and down swaying of the fabric. The structural design of the dividing net can reduce the irregular movement of the fabric and improve the stability of the fabric movement. 2. The density of the openings in the separator increases from front to back. The increased opening density allows carbon dioxide medium to flow out through the openings, thus reducing the medium flow rate. This causes the fabric to settle and accumulate sequentially within the separator, preventing it from being blown away. At the same time, the faster medium flow rate at the front can generate greater thrust on the fabric, which is beneficial for the fabric to move from front to back within the separator. The fabric is mainly driven by the medium flow and the subsequent fabric movement within the separator, which helps to control the movement posture of the fabric within the walking device. 3. The guide tube includes a straight section and a curved section. The curved section connects the outlet of the nozzle to the straight section of the guide tube. The medium flows rapidly from the outlet of the nozzle into the guide tube, pushing the fabric through the curved section into the straight section. During this process, the fabric can be impacted and produce a twisting effect, further improving the dyeing effect of the fabric. 4. Both the separator and the guide tube are long and narrow, making the entire fabric feeding device long and narrow as well. This allows it to be easily placed into the dyeing vessel of an existing supercritical carbon dioxide dyeing system, making it easy to apply the fabric feeding device directly to existing technologies.

[0015] The dyeing system for supercritical carbon dioxide dyeing provided by this invention, in addition to the beneficial effects of the aforementioned fabric guiding device, also has the following beneficial effects: the fabric guiding device is located inside the dyeing kettle, and the fabric guiding tube is also located inside the dyeing kettle. Therefore, there is no significant pressure difference between the inside and outside of the fabric guiding tube, the tube body of the fabric guiding tube will not bear pressure, and the cross-sectional shape design of the fabric guiding tube is more flexible. The fabric guiding tube can be designed as a thin-walled tube with a cross-section of circular, elliptical, rectangular, or other shapes, which can increase the variety of fabrics that the fabric guiding tube can be used for and improve the versatility of the dyeing system. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a staining system suitable for supercritical carbon dioxide staining provided in Embodiment 1 of the present invention; Figure 2 This is a partial structural diagram of the connection between the nozzle and the dyeing vessel in a dyeing system suitable for supercritical carbon dioxide dyeing provided in Embodiment 1 of the present invention. Figure 3 This is a side cross-sectional view of a staining system suitable for supercritical carbon dioxide staining provided in Embodiment 1 of the present invention. Figure 4 This is a schematic diagram of the structure of a staining system suitable for supercritical carbon dioxide staining provided in Embodiment 2 of the present invention.

[0018] Icons: 100-Separation net; 110-Fabric inlet section; 120-Fabric storage section; 121-Cover plate; 130-Fabric outlet section; 200-Fabric guide pipe; 210-Nozzle; 211-Media inlet; 222-Media outlet; 220-Straight section; 230-Bent section; 240-Connecting part; 250-Connecting bend; 300-Roller; 400-Dyeing kettle; 410-Feed pipe; 420-Circumferential sealing structure. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] Example 1 This embodiment provides a dyeing system and fabric feeding device suitable for supercritical carbon dioxide dyeing, such as... Figures 1 to 3 As shown, the dyeing system includes a dyeing kettle 400 and a fabric feeding device. The fabric feeding device is located inside the dyeing kettle 400. The dyeing kettle 400 has a feed inlet, and the medium inlet 211 of the nozzle 210 is connected to the feed inlet of the dyeing kettle 400. The fabric feeding device includes a separating net 100 and a guide pipe 200. The separating net 100 is a long cylindrical structure with densely distributed openings around its perimeter. The separating net 100 has a fabric feeding section 110, a fabric storage section 120, and a fabric output section 130 arranged sequentially from front to back. The fabric storage section 120 is lower than the fabric feeding section 110 and the fabric output section 130. The fabric feeding section 110 and the fabric output section 130 are both inclinedly connected to the fabric storage section 120. The transverse dimension of the fabric storage section 120 is larger than its longitudinal dimension. The density of the openings in the separating net 100 increases from front to back. The guide tube 200 has a long strip structure. Both ends of the guide tube 200 are connected to the front and rear ends of the separator 100, respectively. The guide tube 200 is equipped with a nozzle 210. The nozzle 210 includes an inlet 211 and an outlet 222. The inlet 211 is used to receive the dyeing medium, and the outlet 222 is used to spray the dyeing medium into the guide tube 200. The guide tube 200 includes a straight section 220 and a curved section 230. The curved section 230 connects the outlet 222 of the nozzle 210 and the straight section 220 of the guide tube 200.

[0027] in, Figure 1 This is a schematic diagram of the staining system suitable for supercritical carbon dioxide staining provided in this embodiment. Figure 1 The up and down directions in the text are the same as the up and down directions in actual application. Figure 2 A partial structural diagram of the connection between nozzle 210 and dyeing kettle 400; Figure 3 This is a schematic diagram of the side cross-sectional structure of the staining system. Figure 3 Section lines are not drawn.

[0028] In this embodiment, as Figure 1As shown, the dividing net 100 is arranged from front to back with a fabric inlet section 110, a fabric storage section 120, and a fabric outlet section 130. The fabric storage section 120 is lower than the fabric inlet section 110 and the fabric outlet section 130, and the fabric inlet section 110 and the fabric outlet section 130 are inclinedly connected to the fabric storage section 120. This design allows the fabric to sink and slide forward at an angle under the action of gravity when moving from the fabric inlet section 110 to the fabric storage section 120. When the fabric moves from the fabric storage section 120 to the fabric outlet section 130, it slides forward and upward at an angle. By restricting the movement of the fabric, and because the transverse dimension of the fabric storage section 120 is greater than its longitudinal dimension, it can also restrict the up-and-down swaying of the fabric. The structural design of the dividing net 100 can reduce the irregular movement of the fabric and improve the stability of the fabric movement.

[0029] Furthermore, the density of the openings in the separator 100 increases from front to back. This increase in opening density allows carbon dioxide medium to flow out through the openings, thus reducing the medium flow rate. This causes the fabric to settle and accumulate sequentially within the separator 100, preventing it from being blown away. At the same time, the faster medium flow rate at the front can generate a greater thrust on the fabric, which is beneficial for the fabric to move from front to back within the separator 100. The fabric in the separator 100 is mainly driven by the medium flow and the subsequent fabric movement to creep, which helps to control the movement posture of the fabric within the walking device.

[0030] like Figure 1 As shown, the guide tube 200 includes a straight section 220 and a curved section 230. The curved section 230 connects the medium outlet 222 of the nozzle 210 and the straight section 220 of the guide tube 200. The medium flows rapidly from the medium outlet 222 of the nozzle 210 into the guide tube 200, pushing the fabric through the curved section 230 and into the straight section 220. During this process, the fabric can be impacted, resulting in a detwisting effect, further improving the dyeing effect of the fabric. Furthermore, as... Figure 1 As shown, the curved section 230 allows the nozzle 210 to be positioned higher, facilitating the connection between the nozzle 210 and the dyeing kettle 400. Conversely, it allows the straight section 220 of the guide tube 200 to be positioned lower, thereby making full use of the space inside the dyeing kettle 400.

[0031] Both the separator 100 and the guide tube 200 are elongated, making the entire fabric feeding device elongated as well. This allows it to be easily placed inside the dyeing vessel 400 of an existing supercritical carbon dioxide dyeing system, facilitating direct application of the fabric feeding device to existing technology. For example... Figure 1 As shown, the dyeing vessel 400 has a long cylindrical structure, which is consistent with the shape design of the dyeing vessel 400 in the existing supercritical carbon dioxide dyeing system. Therefore, the fabric feeding device provided in this embodiment can be easily applied to the existing supercritical carbon dioxide dyeing system, and the entire dyeing system does not need to be modified extensively.

[0032] Since the walking device is located inside the dyeing kettle 400, the guide tube 200 is also located inside the dyeing kettle 400. Therefore, there is no significant pressure difference between the inside and outside of the guide tube 200, and the tube body of the guide tube 200 will not bear pressure. The cross-sectional shape design of the guide tube 200 is more flexible. The guide tube 200 can be designed as a thin-walled tube with a cross-section of a circle, ellipse, rectangle, etc., which can increase the variety of fabrics that the guide tube 200 can be used for and improve the versatility of the dyeing system.

[0033] Specifically, the cross-sectional shape of the fabric storage segment 120 can be set to a rectangle, in which case the lateral dimension of the fabric storage segment 120 is greater than the longitudinal dimension, that is, the width is greater than the height. In addition, the cross-section of the fabric storage segment 120 can also be set to other shapes such as an ellipse.

[0034] In this embodiment, the fabric feeding device can be removed and placed entirely from the dyeing kettle, which facilitates the installation and disassembly of the fabric feeding device and also makes it easier for the fabric feeding device to pick up and put down the fabric.

[0035] In some embodiments, the separator 100 is a four-sided enclosed boat-shaped wire mesh cage made of stainless steel perforated sheet. The perforation direction of the perforated sheet is from the inside out, thereby ensuring that the smooth surface of the perforated sheet is located inside the separator 100, reducing the risk of scratching the fabric.

[0036] In some embodiments, the inner and outer surfaces of the separating net 100 and the guide tube 200 of the fabric feeding device are coated with polytetrafluoroethylene, which can seal surface scratches and improve surface roughness, facilitate fabric sliding, prevent fabric scratches, and reduce the adhesion of dyes and other impurities during the dyeing process.

[0037] In this embodiment, as Figure 2 As shown, the feed inlet of the dyeing vessel 400 includes a feed pipe 410. The cylinder of the dyeing vessel 400 is provided with an installation hole. The first end of the feed pipe 410 is located in the installation hole. A circumferential sealing structure 420 is provided between the first end of the feed pipe 410 and the installation hole. The second end of the feed pipe 410 is detachably connected to the medium inlet 211 of the nozzle 210.

[0038] In this embodiment, the circumferential sealing structure 420 eliminates the need for complete fixation between the feed pipe 410 and the mounting hole of the dyeing kettle 400 cylinder. This allows the feed pipe 410 to move within a certain range during installation, facilitating connection to the medium inlet 211 of the nozzle 210. It also reduces the positional requirements of the medium inlet 211 of the nozzle 210 in the fabric feeding device, making installation and use more flexible. Specifically, the circumferential sealing structure 420 can be implemented using components such as sealing rings in conjunction with mounting grooves.

[0039] like Figure 2As shown, in this embodiment, a quick-release clamp structure is used to achieve a detachable connection between the second end of the feed pipe 410 and the medium inlet 211 of the nozzle 210. In other embodiments, other detachable connection structures may also be used between the second end of the feed pipe 410 and the medium inlet 211 of the nozzle 210.

[0040] In some embodiments, the opening area at the bottom of the feed section 110 of the separator 100 is 3 to 5 times that at the top. The difference in opening area between the bottom and the top can cause the airflow to act downward, thereby accelerating the fabric to sink to the bottom and reducing the irregular movement of the fabric.

[0041] In some embodiments, the center-to-center distance of the openings at the rear of the separator 100 is not less than twice the aperture diameter, and the center-to-center distance of the openings at the front of the separator 100 is not greater than eight times the aperture diameter. Within this range, a phased variation can be adopted, for example, the center-to-center distance of the openings in the fabric outlet section 130 is not less than twice the aperture diameter, the center-to-center distance of the openings in the fabric inlet section 110 is not greater than eight times the aperture diameter, and the center-to-center distance of the openings in the fabric storage section 120 is in between; a gradual variation can also be adopted, in which the center-to-center distance of the openings in the separator 100 gradually increases from front to back.

[0042] In some embodiments, the upper part of the separator 100 includes a removable cover plate 121. On the one hand, the removable cover plate 121 can reduce the difficulty of manufacturing the separator 100, especially by removing the cover plate 121 to process the interior of the separator 100, such as by polishing, thereby increasing the smoothness of the interior of the separator 100 and preventing the separator 100 from damaging the fabric. On the other hand, the removable cover plate 121 can also enable the separator 100 to have more uses. For example, the cover plate 121 can be removed first, the fabric can be loaded into the separator 100, and then the fabric feeding device can be placed into the dyeing kettle 400; or the interior of the separator 100 can be cleaned by removing the cover plate 121; or, after removing the cover plate 121, a warp dyeing related structure can be added to the separator 100, so that the fabric feeding device can be applied to the warp dyeing process or system.

[0043] like Figure 1 As shown, in this embodiment, the first end of the guide tube 200 is provided with a bent connecting part 240. The first end of the guide tube 200 is connected to the feed section 110 of the separator net 100 through the connecting part 240. The second end of the guide tube 200 is provided with a detachable connecting bend 250. The detachable connecting bend 250 connects the second section of the guide tube 200 to the feed section 130 of the separator net 100.

[0044] In other embodiments, the first end of the guide tube 200 is provided with a curved connecting part 240. The first end of the guide tube 200 is connected to the feed section 110 of the separator 100 through the connecting part 240. The second end of the guide tube 200 is provided with a feed wheel. After the fabric is discharged from the feed section 130 of the separator 100, it is reversed by the feed wheel and then re-enters the guide tube 200.

[0045] In other embodiments, the two ends of the guide tube 200 are provided with curved connecting portions 240, and the guide tube 200 is connected to the separator net 100 through the connecting portions 240.

[0046] like Figure 1 As shown, in this embodiment, the straight section 220 of the guide tube 200 covers the feed section 110 and storage section 120 of the partition net in the length direction, thereby providing sufficient space for the fabric to run smoothly and ensuring the stability of the fabric operation. Correspondingly, the nozzle 210 and the curved section 230 are arranged at positions opposite to the feed section 130 of the partition net 100.

[0047] In this embodiment, as Figure 3 As shown, the outer periphery of the fabric feeding device is also provided with rollers 300, which facilitates pushing the fabric feeding device into the dyeing kettle 400.

[0048] Example 2 This embodiment provides a dyeing system and fabric feeding device suitable for supercritical carbon dioxide dyeing, such as... Figure 4 As shown, the main technology is the same as in Embodiment 1, the main difference being that in Embodiment 1, the guide tube 200 is located below the separator net 100, while in Embodiment 2, the guide tube 200 is located above the separator net 100.

[0049] Therefore, this application does not limit the relative positional relationship between the guide tube 200 and the separator 100 within the dyeing kettle 400; it only needs to ensure that the storage section 120 of the separator 100 is lower than the infeed section 110 and the outfeed section 130.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fabric feeding device suitable for supercritical carbon dioxide dyeing, characterized in that, include: A partition net (100) is a long cylindrical structure with densely distributed openings around its perimeter. The partition net (100) is provided with a fabric inlet section (110), a fabric storage section (120), and a fabric outlet section (130) from front to back. The fabric storage section (120) is lower than the fabric inlet section (110) and the fabric outlet section (130). The fabric inlet section (110) and the fabric outlet section (130) are both inclinedly connected to the fabric storage section (120). The transverse dimension of the fabric storage section (120) is greater than its longitudinal dimension. The density of the openings in the partition net (100) increases from front to back. A guide tube (200) is a long strip structure. Both ends of the guide tube (200) are connected to the front and rear ends of the separator (100) respectively. The guide tube (200) is provided with a nozzle (210). The nozzle (210) includes an inlet (211) and an outlet (222). The inlet (211) is used to receive the dyeing medium, and the outlet (222) is used to spray the dyeing medium into the guide tube (200). The guide tube (200) includes a straight section (220) and a curved section (230). The curved section (230) connects the outlet (222) of the nozzle (210) and the straight section (220) of the guide tube (200).

2. The fabric feeding device for supercritical carbon dioxide dyeing according to claim 1, characterized in that, The opening area at the bottom of the feed section (110) of the separator (100) is 3 to 5 times that of the upper part.

3. The fabric feeding device for supercritical carbon dioxide dyeing according to claim 1, characterized in that, The center-to-center distance of the openings at the rear of the partition mesh (100) is not less than twice the aperture, and the center-to-center distance of the openings at the front of the partition mesh (100) is not greater than eight times the aperture.

4. The fabric feeding device for supercritical carbon dioxide dyeing according to claim 1, characterized in that, The upper part of the partition net (100) includes a removable cover plate (121).

5. The fabric feeding device for supercritical carbon dioxide dyeing according to claim 1, characterized in that, The guide tube (200) has two curved connecting parts (240) at its two ends, and the guide tube (200) is connected to the separator (100) through the connecting parts (240).

6. The fabric feeding device for supercritical carbon dioxide dyeing according to claim 1, characterized in that, The first end of the guide tube (200) is provided with a curved connecting part (240), the first end of the guide tube (200) is connected to the separator net (100) through the connecting part (240), and the second end of the guide tube (200) is provided with a detachable connecting bend (250) or a cloth-carrying wheel.

7. The fabric feeding device for supercritical carbon dioxide dyeing according to claim 1, characterized in that, The straight section (220) of the guide tube (200) is positioned opposite to the feed section (110) and the storage section (120) of the separator (100) in the length direction.

8. The fabric feeding device for supercritical carbon dioxide dyeing according to claim 1, characterized in that, The outer periphery of the fabric feeding device is also equipped with rollers (300).

9. A staining system suitable for supercritical carbon dioxide staining, characterized in that, The device includes a dyeing kettle (400) and a fabric feeding device according to any one of claims 1-8, wherein the fabric feeding device is disposed inside the dyeing kettle (400), the dyeing kettle (400) is provided with a feed inlet, and the medium inlet (211) of the nozzle (210) is connected to the feed inlet of the dyeing kettle (400).

10. The staining system for supercritical carbon dioxide staining according to claim 9, characterized in that, The inlet of the dyeing vessel (400) includes a feed pipe (410). The cylinder of the dyeing vessel (400) is provided with an installation hole. The first end of the feed pipe (410) is located in the installation hole. A circumferential sealing structure (420) is provided between the first end of the feed pipe (410) and the installation hole. The second end of the feed pipe (410) is detachably connected to the medium inlet (211) of the nozzle (210).

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