CN114775197A - Supercritical fluid anhydrous dyeing method and dyeing rack for braid - Google Patents
Supercritical fluid anhydrous dyeing method and dyeing rack for braid Download PDFInfo
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- CN114775197A CN114775197A CN202210546782.3A CN202210546782A CN114775197A CN 114775197 A CN114775197 A CN 114775197A CN 202210546782 A CN202210546782 A CN 202210546782A CN 114775197 A CN114775197 A CN 114775197A
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- 239000012530 fluid Substances 0.000 title claims abstract description 123
- 238000004043 dyeing Methods 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000009826 distribution Methods 0.000 claims abstract description 108
- 238000004804 winding Methods 0.000 claims description 19
- 238000010438 heat treatment Methods 0.000 claims description 8
- 238000004321 preservation Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 230000004907 flux Effects 0.000 abstract description 2
- 230000035515 penetration Effects 0.000 abstract description 2
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 239000000975 dye Substances 0.000 description 27
- 230000000052 comparative effect Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 239000004753 textile Substances 0.000 description 3
- 239000012736 aqueous medium Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002609 medium Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010918 textile wastewater Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
- D06B5/12—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length
- D06B5/22—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating through materials of definite length through fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/20—Arrangements of apparatus for treating processing-liquids, -gases or -vapours, e.g. purification, filtration or distillation
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/94—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in solvents which are in the supercritical state
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
The invention relates to a woven belt supercritical fluid anhydrous dyeing method and a dyeing rack, wherein the dyeing rack comprises a fluid distribution pipe, an upper cover unit and a lower support unit, the ratio of the inner diameter of a hollow pipe cavity to the outer diameter of one side of the upper cover unit and the outer diameter of one side of the lower support unit are both 1:2-4, and the pipe wall of the fluid distribution pipe is provided with spiral distribution grooves and fluid holes which are arranged at intervals along the spiral lines of the spiral distribution grooves. Aiming at the needs of penetrating the woven tape with large thickness and high density, the invention realizes that the supercritical fluid dissolved with dye can flow in the fluid distribution pipe with large flux by utilizing the synergistic action of the spiral distribution groove on the fluid distribution pipe and the ratio control, thereby meeting the needs of high-efficiency penetration and penetrating dyeing, wherein the standard deviation of the internal, middle and external K/S values of the woven tape is less than 0.04 percent after dyeing, and the standard deviation of the axial K/S value of the woven tape is less than 0.04 percent.
Description
Technical Field
The invention belongs to the technical field of dyeing and finishing, and particularly relates to a supercritical fluid anhydrous dyeing method and a dyeing rack for a braid.
Background
The mesh belt industry is an important branch of textile industry, and the mesh belt is increasingly widely applied to the industrial fields of automobile safety belts, goods binding belts, hoisting belts and the like and the field of civil accessories such as clothes, dresses, gifts, packages, shoes and caps and has huge market potential. In order to obtain colorful woven belt products, the aqueous medium dyeing process is still the main method for dyeing woven belts.
As an important source of textile water pollution, the discharge of waste water generated in the printing and dyeing process accounts for more than seven times of the discharge of textile waste water, and a large amount of dye and chemical additives contained in the waste water have poor biodegradability and great treatment difficulty, so that greater and greater environmental pressure is brought. The development of green low-carbon dyeing technology becomes an important direction of the braid industry.
In order to solve the problem of high pollution of the traditional aqueous medium dyeing, supercritical CO2Fluid dyeing techniques have gradually been successful and applied to polyester dyeing with the advantage that they are anhydrous throughout. Compared with water medium, the method utilizes industrial discharged CO2The waste gas dissolves dye under supercritical state, and the textile is dyed in a closed kettle body, and the method has the advantages of high color fastness, short process, no three-waste discharge, dye and CO2Can be recycled, realizes CO2And (4) comprehensive utilization of resources. However, in the production, the thickness of zippers, cloth belts, rope belts and the like wound on the dyeing frame is generally 1 to tens of centimeters, the woven belts wound on different parts of the dyeing frame have different thicknesses and air resistance due to the random winding mode, dyeing and dyeing defects and unevenness are easily aggravated, and the key is to develop a novel woven belt supercritical fluid anhydrous dyeing kettle to meet the uniform dyeing and penetrating dyeing problems of high-thickness and high-density woven belts.
Disclosure of Invention
The invention aims to provide a supercritical fluid anhydrous dyeing method and a supercritical fluid anhydrous dyeing frame for woven belts, which solve the problems of level dyeing and penetrating dyeing of high-thickness and high-density woven belts.
In order to realize the aim of the invention, the invention adopts the technical scheme that:
a dyeing rack comprises a fluid distribution pipe, an upper cover unit and a lower support unit, wherein the upper cover unit and the lower support unit are respectively fixed at the upper end and the lower end of the fluid distribution pipe, a hollow pipe cavity is arranged in the fluid distribution pipe, a spiral distribution groove and fluid holes which are arranged at intervals along the spiral line of the spiral distribution groove are formed in the pipe wall of the fluid distribution pipe, the ratio of the inner diameter of the hollow pipe cavity of the fluid distribution pipe to the outer diameter of one side, adjacent to the fluid distribution pipe, of the upper cover unit is 1:2-4, and the ratio of the inner diameter of the hollow pipe cavity of the fluid distribution pipe to the outer diameter of one side, adjacent to the fluid distribution pipe, of the lower support unit is 1: 2-4.
Preferably, the wall thickness of the fluid distribution pipe is 2mm to 5mm greater than the depth of the spiral distribution grooves, and the width of the spiral distribution grooves is 5mm to 100 mm.
Preferably, the axial distance between the nearest points of the outer ends of two adjacent fluid holes in the same spiral distribution groove is 2mm-4mm, and the circumferential distance is 2mm-4 mm.
Preferably, the fluid hole is in a circular truncated cone hole structure with a wide inner part and a narrow outer part and is communicated with the hollow pipe cavity and the spiral distribution groove at the corresponding position.
Preferably, the bottom of the lower support unit is provided with a connecting piece communicated with the hollow tube cavity of the fluid distribution tube.
Preferably, the end of the connecting piece is provided with a sealing ring groove or a thread structure.
Preferably, the spiral distribution grooves are arranged in parallel, or the number of the spiral distribution grooves is set to 1.
The invention also provides a supercritical fluid anhydrous dyeing method for the braid, which specifically comprises the following steps:
s1, winding the woven belt on a dyeing frame, then assembling the woven belt into a dyeing kettle, and placing the dye into the dyeing kettle;
s2, heating the dye kettle and the dyeing kettle, allowing the supercritical fluid to enter the dyeing kettle from the dye kettle, and stopping introducing the supercritical fluid when the temperature reaches 80-120 ℃ and the pressure reaches 16-24 MPa; and then, carrying out heat preservation dyeing circulation treatment on the woven tape by using the supercritical fluid dissolved with the dye by using a circulating pump for 20-60 min, and releasing pressure to discharge the supercritical fluid dissolved with the dye after dyeing is finished.
Preferably, the step S1 selects an adaptive dyeing support according to the width and thickness of the woven tape, the inner layer is wound along the spiral distribution groove and then wound layer by layer from inside to outside, and the outermost diameter of the woven tape roll does not exceed the outer diameter of one side of the upper cover unit adjacent to the fluid distribution pipe and does not exceed the outer diameter of one side of the lower support unit adjacent to the distribution pipe.
Preferably, the supercritical fluid is supercritical CO2。
Compared with the prior art, the invention has the following beneficial effects:
aiming at the needs of penetrating the woven belts with large thickness and high density, the pipe wall of the fluid distribution pipe of the dyeing frame is innovatively provided with a spiral distribution groove which is convenient for regularly winding the inner layers of the woven belts with large thickness and high density, and the ratio of the inner diameter of the pipe cavity of the fluid distribution pipe to the outer diameters of one sides of the upper cover unit and the lower support unit, which are respectively adjacent to the fluid distribution pipe, is 1:2-1:4, so that the supercritical fluid dissolved with dyes can flow in the fluid distribution pipe with large flux in a synergistic manner, the needs of high-efficiency penetration and penetrating dyeing are met, the standard deviation of K/S values in the inner part, the middle part and the outer part of the woven belts after dyeing is less than 0.04%, and the standard deviation of K/S values in the axial direction of the woven belts is less than 0.04%.
Detailed Description
Example 1
The embodiment provides a dyeing stand, including fluid distribution pipe, fluid distribution pipe's inside is established to the cavity lumen, the spiral distribution groove has been seted up on fluid distribution pipe's the pipe wall, spiral distribution groove parallel arrangement has more than two or spiral distribution groove's quantity is established to 1, fluid distribution pipe's the pipe wall thickness is 1mm-5mm than spiral distribution groove's the degree of depth is big, and spiral distribution groove's width is 5mm-100 mm.
In this embodiment, fluid holes are arranged on the wall of the fluid distribution pipe at intervals along the spiral line of the spiral distribution groove, the fluid holes communicate with the hollow pipe cavity and the spiral distribution groove at the corresponding position, the axial distance between the closest points of the outer ends of two adjacent fluid holes in the same spiral distribution groove is 2mm-4mm, and the circumferential distance is 2mm-4 mm. Preferably, the fluid hole is a circular truncated cone hole structure with a wide inner part and a narrow outer part, and can also be other structures such as a cylindrical hole structure.
In this embodiment, the dyeing stand further comprises an upper cover unit and a lower support unit respectively fixed to the upper and lower ends of the fluid distribution pipe, the ratio of the inner diameter of the hollow pipe cavity to the outer diameter of one side of the upper cover unit adjacent to the fluid distribution pipe is 1:2-4, the ratio of the inner diameter of the hollow pipe cavity to the outer diameter of one side, adjacent to the fluid distribution pipe, of the lower support unit is 1:2-4, the braid is wound on the fluid distribution pipe to form a braid coil, the inner layer of the braid coil is wound in parallel along the spiral distribution groove and then wound layer by layer from inside to outside according to an inner layer winding structure, the upper end and the lower end of the braid coil are respectively abutted against the upper cover unit and the lower support unit, the diameter of the outermost layer of the braid coil does not exceed the outer diameter of one side, adjacent to the fluid distribution pipe, of the upper cover unit and does not exceed the outer diameter of one side, adjacent to the distribution pipe, of the lower support unit, that is, the roll of webbing has a maximum outer diameter that is the smaller of the outer diameter of the side of the upper cover unit adjacent to the fluid distribution pipe and the outer diameter of the side of the lower support unit adjacent to the fluid distribution pipe.
In addition, the bottom of the lower support unit is provided with a connecting piece communicated with the hollow tube cavity of the fluid distribution tube, the end part of the connecting piece is provided with a sealing ring groove or a thread structure, wherein the sealing ring groove can be connected with the supercritical fluid pipeline through a sealing ring so that the supercritical fluid outside the dyeing kettle can directly enter and exit the fluid distribution tube from the connecting piece, and the thread structure can be in thread connection with the distributor at the bottom of the dyeing kettle so that the supercritical fluid outside the dyeing kettle is firstly distributed in the distributor and then enters and exits the fluid distribution tube from the connecting piece.
Example 2
The embodiment provides a supercritical fluid anhydrous dyeing method for a braid, which specifically comprises the following steps:
s1, selecting an adaptive dyeing frame according to the width and the thickness of the woven tape, winding the woven tape on the dyeing frame, winding the inner layer along the spiral distribution groove, winding the inner layer by layer from inside to outside according to an inner layer winding structure, then assembling the inner layer into a dyeing kettle, and placing the dye into the dyeing kettle.
The dyeing rack structure was referred to above in example 1, and the specific parameters were set as: the wall thickness of the fluid distribution pipe is 4mm, the number of the spiral distribution grooves is 1, the depth is 2mm, and the width is 20 mm; the inner diameter of the outer end of each fluid hole is a circular truncated cone hole structure with the diameter of 4mm, the axial distance of the nearest point of the outer ends of two adjacent fluid holes in the same spiral distribution groove is 3mm, and the circumferential distance is 3 mm; the inner diameter of the hollow pipe cavity of the fluid distribution pipe is 50mm, the outer diameter of one side, adjacent to the fluid distribution pipe, of the upper cover unit is 100mm, the outer diameter of one side, adjacent to the fluid distribution pipe, of the lower support unit is 100mm, and the maximum outer diameter of the braid roll is 2 times of the inner diameter of the hollow pipe cavity of the fluid distribution pipe.
S2, heating the dye kettle and the dyeing kettle, and enabling CO to pass through a high-pressure pump and a heater2Liquid CO output from storage tank2Heating and pressurizing to obtain supercritical CO2(31.1 ℃/7.37 MPa), allowing the supercritical fluid to enter the dyeing kettle from the dye kettle, and stopping introducing the supercritical fluid when the temperature reaches 120 ℃ and the pressure reaches 16 MPa; then, the supercritical fluid with the dye dissolved therein is subjected to heat preservation dyeing circulation treatment for 40min by virtue of a circulating pump, the supercritical fluid with the dye dissolved therein is discharged after dyeing is finished by pressure release, then the dye is separated and gasified CO is recovered2After treatment, it is stored in CO2And (4) storage tank.
Example 3
The embodiment provides a supercritical fluid anhydrous dyeing method for woven belts, which specifically comprises the following steps:
s1, selecting an adaptive dyeing frame according to the width and the thickness of the woven tape, winding the woven tape on the dyeing frame, winding the inner layer in parallel along the spiral distribution groove, winding the inner layer by layer from inside to outside according to an inner layer winding structure, then assembling the inner layer into a dyeing kettle, and placing the dye into the dyeing kettle.
The dyeing rack structure was referred to above in example 1, and the specific parameters were set as: the wall thickness of the fluid distribution pipe is 5mm, the number of the spiral distribution grooves is 2, the depth is 3mm, and the width is 10 mm; the fluid holes are in a cylindrical hole structure with the outer end inner diameter of 3mm, the axial distance of the nearest point of the outer ends of two adjacent fluid holes in the same spiral distribution groove is 4mm, and the circumferential distance is 4 mm; the inner diameter of the hollow pipe cavity of the fluid distribution pipe is 100mm, the outer diameter of one side, adjacent to the fluid distribution pipe, of the upper cover unit is 400mm, the outer diameter of one side, adjacent to the fluid distribution pipe, of the lower support unit is 400mm, and the maximum outer diameter of the braid roll is 4 times of the inner diameter of the hollow pipe cavity of the fluid distribution pipe.
S2, heating the dye kettle and the dyeing kettle, and enabling CO to pass through a high-pressure pump and a heater2Liquid CO output from storage tank2Heating and pressurizing to obtain supercritical CO2(31.1 ℃/7.37 MPa), allowing the supercritical fluid to enter the dyeing kettle from the dye kettle, and stopping introducing the supercritical fluid when the temperature reaches 100 ℃ and the pressure reaches 20 MPa; then, the supercritical fluid dissolved with the dye is subjected to heat preservation dyeing circulation treatment for 30min by a circulating pump, the supercritical fluid dissolved with the dye is discharged after dyeing is finished by pressure relief, then the dye is separated and the gasified CO is recovered2After treatment, it is stored in CO2And (4) storing the liquid.
Example 4
The embodiment provides a supercritical fluid anhydrous dyeing method for a braid, which specifically comprises the following steps:
s1, selecting an adaptive dyeing frame according to the width and the thickness of the woven tape, winding the woven tape on the dyeing frame, winding the inner layer in parallel along the spiral distribution groove, winding the inner layer by layer from inside to outside according to an inner layer winding structure, then assembling the inner layer into a dyeing kettle, and placing the dye into the dyeing kettle.
The dyeing rack structure was referred to above in example 1, and the specific parameters were set as: the wall thickness of the fluid distribution pipe is 5mm, the number of the spiral distribution grooves is 2, the depth is 2mm, and the width is 50 mm; the fluid holes are in a circular truncated cone hole structure with the outer end inner diameter of 5mm, the axial distance of the nearest points of the outer ends of two adjacent fluid holes in the same spiral distribution groove is 2mm, and the circumferential distance is 2 mm; the inner diameter of the hollow pipe cavity of the fluid distribution pipe is 200mm, the outer diameter of one side, adjacent to the fluid distribution pipe, of the upper cover unit is 600mm, the outer diameter of one side, adjacent to the fluid distribution pipe, of the lower support unit is 600mm, and the maximum outer diameter of the braid roll is 3 times of the inner diameter of the hollow pipe cavity of the fluid distribution pipe.
S2, heating the dye kettle and the dyeing kettle, and enabling CO to pass through a high-pressure pump and a heater2Liquid delivered from storage tankCO2Heating and pressurizing to obtain supercritical CO2(31.1 ℃/7.37 MPa), allowing the supercritical fluid to enter the dyeing kettle from the dye kettle, and stopping introducing the supercritical fluid when the temperature reaches 85 ℃ and the pressure reaches 24 MPa; then, the supercritical fluid dissolved with the dye is subjected to heat preservation dyeing circulation treatment for 60min by a circulating pump, the supercritical fluid dissolved with the dye is discharged after dyeing is finished by pressure relief, then the dye is separated and the gasified CO is recovered2After treatment, it is stored in CO2And (4) storing the liquid.
Comparative example 1
This comparative example 1 differs from the above example 2 only in that: the pipe wall of the fluid distribution pipe is not provided with the spiral distribution groove, the position and the size of the fluid hole are not changed, and the inner layer of the braid roll is not wound along the spiral distribution groove of the embodiment 2.
Comparative example 2
This comparative example 2 differs from the above example 2 only in that: the outermost layer diameter of the roll of braid was the same as in example 2 but the ratio of the inner diameter of the hollow lumen of the fluid distribution tube to the outer diameter of the roll of braid was 0.8: 4.
The physical property tests are respectively carried out on the woven belts dyed in the examples 2-4 and the comparative examples 1-2, wherein the standard deviation of the K/S values in the inner, middle and outer woven belts is less than 0.04 percent, the standard deviation of the K/S values in the axial direction of the woven belts is less than 0.04 percent, and the water color fastness, the perspiration stain color fastness, the rubbing color fastness and the washing color fastness reach 4-5 grades. However, the standard deviations of the inner, middle and outer K/S values of the woven tapes of comparative examples 1 and 2 were 2.8% and 1.5%, respectively, and the standard deviations of the K/S values in the axial direction of the woven tape were 3.2% and 2.1%, respectively.
While there have been shown and described what are at present considered to be the fundamental and essential features of the invention and advantages thereof, it will be understood by those skilled in the art that the invention is not limited by the foregoing embodiments, but is described in the foregoing description only for the purpose of illustrating the principles of the invention and is subject to various changes and modifications without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (10)
1. A dyeing rack is characterized in that: the fluid distribution pipe comprises a fluid distribution pipe, an upper cover unit and a lower support unit, wherein the upper cover unit and the lower support unit are respectively fixed at the upper end and the lower end of the fluid distribution pipe, a hollow pipe cavity is arranged in the fluid distribution pipe, a spiral distribution groove and fluid holes which are arranged at intervals along a spiral line of the spiral distribution groove are formed in the pipe wall of the fluid distribution pipe, the ratio of the inner diameter of the hollow pipe cavity of the fluid distribution pipe to the outer diameter of one side, adjacent to the fluid distribution pipe, of the upper cover unit is 1:2-4, and the ratio of the inner diameter of the hollow pipe cavity of the fluid distribution pipe to the outer diameter of one side, adjacent to the fluid distribution pipe, of the lower support unit is 1: 2-4.
2. Dyeing support according to claim 1, characterized in that: the wall thickness of the fluid distribution pipe is 2mm-5mm larger than the depth of the spiral distribution groove, and the width of the spiral distribution groove is 5mm-100 mm.
3. Dyeing support according to claim 1, characterized in that: the axial distance of the nearest point of the outer ends of two adjacent fluid holes in the same spiral distribution groove is 2mm-4mm, and the circumferential distance is 2mm-4 mm.
4. Dyeing support according to claim 1, characterized in that: the fluid hole is in a round table hole structure with wide inner part and narrow outer part and is communicated with the hollow pipe cavity and the spiral distribution groove at the corresponding position.
5. Dyeing support according to claim 1, characterized in that: and the bottom of the lower support unit is provided with a connecting piece communicated with the hollow pipe cavity of the fluid distribution pipe.
6. Dyeing support according to claim 1, characterized in that: and the end part of the connecting piece is provided with a sealing ring groove or a thread structure.
7. Dyeing support according to any one of claims 1 to 5, characterized in that: the spiral distribution grooves are arranged in parallel, or the number of the spiral distribution grooves is set to be 1.
8. A supercritical fluid anhydrous dyeing method for mesh belts is characterized by comprising the following steps:
s1, winding the woven tape on the dyeing frame according to any one of claims 1 to 6, and then assembling the woven tape into a dyeing kettle, wherein the dye is placed in the dyeing kettle;
s2, heating the dye kettle and the dyeing kettle, allowing the supercritical fluid to enter the dyeing kettle from the dye kettle, and stopping introducing the supercritical fluid when the temperature reaches 80-120 ℃ and the pressure reaches 16-24 MPa; and then, carrying out heat preservation dyeing circulation treatment on the woven tape by using the supercritical fluid dissolved with the dye by using a circulating pump for 20-60 min, and releasing pressure to discharge the supercritical fluid dissolved with the dye after dyeing is finished.
9. The supercritical fluid anhydrous dyeing method for braid according to claim 8, characterized in that: and step S1, selecting a proper dyeing frame according to the width and the thickness of the braid, winding the braid along the spiral distribution groove to complete the inner layer and then winding the braid layer by layer from inside to outside, wherein the diameter of the outermost layer of the braid roll does not exceed the outer diameter of one side of the upper cover unit adjacent to the fluid distribution pipe and does not exceed the outer diameter of one side of the lower support unit adjacent to the distribution pipe.
10. The supercritical fluid anhydrous dyeing method for braid according to claim 8, characterized in that: the supercritical fluid is supercritical CO2。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210546782.3A CN114775197A (en) | 2022-05-20 | 2022-05-20 | Supercritical fluid anhydrous dyeing method and dyeing rack for braid |
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| CN202210546782.3A CN114775197A (en) | 2022-05-20 | 2022-05-20 | Supercritical fluid anhydrous dyeing method and dyeing rack for braid |
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| CN109281089A (en) * | 2018-08-24 | 2019-01-29 | 青岛即发集团股份有限公司 | A kind of supercritical CO2Dyeing installation and targeting staining method |
| CN110983829A (en) * | 2019-12-27 | 2020-04-10 | 江苏高科制药设备有限公司 | Dyeing method based on carbon dioxide supercritical dispersion mutual solubility |
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