CN112064370B - Dyeing method of artificial fiber - Google Patents
Dyeing method of artificial fiber Download PDFInfo
- Publication number
- CN112064370B CN112064370B CN201910495935.4A CN201910495935A CN112064370B CN 112064370 B CN112064370 B CN 112064370B CN 201910495935 A CN201910495935 A CN 201910495935A CN 112064370 B CN112064370 B CN 112064370B
- Authority
- CN
- China
- Prior art keywords
- dyeing
- artificial fiber
- dye
- fiber
- accommodating groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004043 dyeing Methods 0.000 title claims abstract description 95
- 229920002994 synthetic fiber Polymers 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 15
- 238000005096 rolling process Methods 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims description 20
- 239000000835 fiber Substances 0.000 claims description 11
- 229920000297 Rayon Polymers 0.000 claims description 10
- 239000002964 rayon Substances 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 8
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 6
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000012209 synthetic fiber Substances 0.000 claims description 4
- 239000002699 waste material Substances 0.000 claims description 3
- 125000000524 functional group Chemical group 0.000 claims description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 claims description 2
- 238000007598 dipping method Methods 0.000 claims 1
- 239000002351 wastewater Substances 0.000 abstract description 7
- 239000002657 fibrous material Substances 0.000 abstract description 2
- 239000000975 dye Substances 0.000 description 35
- 230000000694 effects Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 7
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 6
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 6
- 239000004753 textile Substances 0.000 description 5
- 239000004952 Polyamide Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920002647 polyamide Polymers 0.000 description 4
- 229940058401 polytetrafluoroethylene Drugs 0.000 description 4
- 229920002725 thermoplastic elastomer Polymers 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 238000007730 finishing process Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000000985 reactive dye Substances 0.000 description 2
- 239000000980 acid dye Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000010014 continuous dyeing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Classifications
-
- 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
- D06P1/44—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 insoluble pigments or auxiliary substances, e.g. binders
- D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
The invention discloses a dyeing method of artificial fiber, which comprises the following steps of firstly preparing an artificial fiber, then adding a dye, a cross-linking agent and a proper amount of water into a containing groove for mixing. Then immersing the artificial fiber material in the accommodating groove to obtain a dyed artificial fiber, rolling the dyed artificial fiber by using a roller group, and finally drying the dyed artificial fiber. The dyeing method of the artificial fiber does not need a large amount of water and waste water, has short dyeing process time, can effectively shorten the production flow, improves the production efficiency and saves the use of energy.
Description
Technical Field
The invention relates to a dyeing method of artificial fiber, in particular to a dyeing method of artificial fiber with low bath ratio, low energy consumption and low water consumption, which can reduce the volume of dye liquor to achieve the effects of environmental protection and energy saving.
Background
The synthetic fiber is widely known as polyester (polyester) and nylon (nylon) polymer materials, has better ductility, water resistance and stain resistance than natural fibers, and is applied to products such as clothing, home life, automobile textiles, industrial textiles or travel products, and the like, wherein the synthetic fiber is most widely used in textile industry. In the textile industry, in order to meet the demands of various industries on individuation, fashion, small batch and short-term product chromaticity, the artificial fiber needs to be dyed, and the color sample is an important pre-operation, so that the accuracy of the color sample is critical to whether the goods are delivered or not.
However, the rayon is a hydrophobic fiber, and lacks a hydrophilic group, so dye molecules are not easy to enter the interior of the rayon, resulting in poor dyeing properties, and the dye needs to be entered by other means, such as a High Temperature and High pressure dyeing method (High Temperature & High Pressure Dyeing). Generally, polyester fibers are dyed at a high temperature of 130-135 ℃ and a high pressure, the hue is uniform, the color fastness can be maintained above level 3, but the energy consumption is high; the dyeing and finishing temperature of nylon is 95-100 ℃ and needs to be maintained for more than 40 minutes, which consumes long time and further causes low dyeing efficiency. Besides the defects of poor color fastness and non-deep dyeing of the artificial fiber for a long time due to the chemical structure relationship of the artificial fiber, the proportion of the limited bath ratio also influences the dyeing property, leveling property and transfer property of the dyed object.
For example, taiwan patent I304831 discloses a reactive dye composition and application thereof, wherein dyeing and finishing temperature is not required to be 100 ℃, but dyeing liquid is heated to 60 ℃ after adding sodium carbonate and maintaining the temperature until dyeing is completed, and dyeing takes about one hour. After dyeing, the procedures of washing, soaping, drying and the like are additionally carried out, and a lot of resources are wasted and a lot of energy is consumed in the whole process.
With the progress of technology, the dyeing time of the artificial fiber tends to be gradually shortened, but the washing step after the dip dyeing and coloring step cannot be omitted, for example, the surface treatment method of the polyester substrate disclosed in taiwan patent No. I404847 discloses that the surface of the polyester substrate is heated first, the surface of the polyester substrate with lower chemical activity is easy to be dyed, and the dyeing time can be shortened to be within 1 minute when the subsequent dyeing is carried out. However, the heating treatment takes 10 seconds to 5 minutes, the heating temperature is required to be between 100 ℃ and 180 ℃, and the subsequent washing step also needs to wash a dye on the dyed object with a large amount of water, so that a large amount of environmental wastewater is generated.
As is well known, dyeing and finishing processes are the most polluting processes in the textile industry, which consume large amounts of water and chemicals and discharge dyeing wastewater. Dyeing wastewater discharged from dyeing and finishing processes has characteristics of high chromaticity, variability, high chemical oxygen demand (Chemical Oxygen Demand, COD), high Suspended Solids (SS), biological degradation difficulty and the like, and has significant harm to natural ecology, such as influencing the color of water, reducing the gas solubility and influencing the ecological environment in water.
In summary, the following problems still exist in the prior art:
1. loss of energy
The traditional dyeing method is that a large amount of water is needed for blending the dye, and a large amount of water is needed for cleaning dyed cloth or blending the color fixing agent after dyeing. In addition, because of the chemical structure of the artificial fiber, the dyeing can be smoothly performed at high temperature or high pressure, besides the expensive equipment, a large amount of water is needed in the dyeing process, and the continuous heating needed in the dyeing process also causes the equipment loss and the increase of the electric power cost.
2. High cost of color sample printing
The color is affected by the quarter and popularity, and the requirements of various manufacturers are different, so that a large amount of materials cannot be prepared in advance, for example, a small amount of proofing is performed to match the requirements of customers, the process of each proofing is the same as that of a large amount of production processes, the materials have fixed consumption due to the relation of bath ratio, water consumption and dye consumption are caused, the cost cannot be reduced, if the color sample does not meet the chromaticity requirements of customers, the color sample cannot be utilized separately, factory goods are caused, and the cost is increased.
3. Adverse environmental protection
In the traditional dyeing process, each procedure needs to use chemical agents and a large amount of water, so that a large amount of wastewater is generated, and the dyeing wastewater has the characteristics of high chemical oxygen demand, high suspended solid concentration, biological degradation difficulty and the like, so that the energy is consumed, and the ecological environment is not favored.
Therefore, a process method with low energy consumption, shortened dyeing time and improved dyeing efficiency is developed to achieve the aim of environmental protection and energy saving, which reduces environmental pollution, can permanently survive the environment, can create more business opportunities for manufacturers, and improves the competitive power in the market.
Disclosure of Invention
The present invention provides a dyeing method for artificial fiber, comprising a preparation step, a mixing step, a dip dyeing step, a rolling step and a drying step.
Firstly, preparing artificial fiber, then, mixing a dye, a cross-linking agent and a proper amount of water in a containing groove to obtain a dye solution, wherein the temperature is 20-40 ℃, then, performing the dip dyeing step, immersing the artificial fiber material in the containing groove to obtain dyed artificial fiber, then, performing the rolling step, rolling and leveling the dyed artificial fiber by using a roller group, wherein the roller group is provided with two rollers arranged in opposite directions, and finally, performing the drying step, and drying the dyed artificial fiber.
In the mixing step, the mass percentage of the dye is 0.01% -10%, the mass percentage of the cross-linking agent is 0.01% -30%, and the mass percentage of the water is 60% -99.8%.
Another technical means of the invention is that the mixing stepThe dye comprises a chromophore (chromophone) and a dye containing hydroxyl (-OH) or amine (-NH) 2 ) The crosslinking agent comprises isocyanate groups (-NCO).
In a further aspect of the present invention, the molar ratio of isocyanate groups (-NCO) to hydroxyl groups (-OH) is 1 to 50, and the dye solution prepared by mixing the dye, the crosslinking agent and water can be preserved for 0.5 to 24 hours
In another aspect of the present invention, the dip dyeing step further includes a pressing member disposed on the accommodating groove, the pressing member can adjust a height of the pressing member relative to the accommodating groove, and the accommodating groove can be a multi-groove type accommodating groove.
In another technical means of the present invention, in the dip-dyeing step, the dip-dyeing time of the artificial fiber is not more than 5 seconds.
In still another aspect of the present invention, the dyed artificial fiber has a color fastness (color fastness) of 3 or more (Grade 3).
In another aspect of the present invention, the method for dyeing an artificial fiber further includes a winding step after the drying step, and winding the dyed artificial fiber.
According to another technical means, the dyeing method of the artificial fiber further comprises a cutting step after the winding step, the artificial fiber after being wound for a certain length is cut to obtain a finished product, and the overall production speed of the dyeing method is 3-30 m/min.
In still another embodiment of the present invention, the rayon material is one or more selected from Polyurethane (PU), polytetrafluoroethylene (Poly Tetra Fluoro Ethylene, PTFE), thermoplastic polyurethane (ThermoplasticPoly Urethane, TPU), thermoplastic elastomer (Thermal Plastic Elastomer, TPE), and Polyamide Fiber (Polyamide Fiber).
The dyeing method for the artificial fiber has the advantages that the dyeing method for the artificial fiber does not need a large amount of water and generates waste water, the dyeing process time is short, the production flow can be effectively shortened, the production efficiency is improved, and the energy source can be saved.
Drawings
FIG. 1 is a schematic flow chart of a dyeing method of an artificial fiber according to a preferred embodiment of the invention;
FIG. 2 is a schematic cross-sectional view showing a preferred embodiment of the dyeing method of the artificial fiber of the present invention.
Symbol description in the drawings:
11. a preparation step; 12, mixing; 13 dip dyeing; 14, rolling; 15, drying; a 16-winding step; 17, cutting;
2. a synthetic fiber;
3. a receiving groove; 31 dye liquor;
4. a pressing member;
5. a roller set; 51. a roller;
6. a dryer;
7. a winding machine;
8. and (5) a cutting machine.
Detailed Description
In order to clarify the features and technical content of the present invention, a preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1 and 2, a flow chart and a cross-sectional diagram of a dyeing method of an artificial fiber according to a preferred embodiment of the present invention are shown, wherein the dyeing method of an artificial fiber comprises a preparation step 11, a mixing step 12, a dip dyeing step 13, a rolling step 14, and a drying step 15.
First, the preparation step 11 is performed to prepare an artificial Fiber 2, wherein the artificial Fiber 2 is selected from Polyurethane (PU), polytetrafluoroethylene (Poly Tetra Fluoro Ethylene, PTFE), thermoplastic polyurethane (ThermoplasticPoly Urethane, TPU), thermoplastic elastomer (Thermal Plastic Elastomer, TPE), polyamide Fiber (Polyamide Fiber). In practical implementation, different artificial fibers 2 can be selected according to the requirements of use, and should not be limited to this.
Then, the mixing step 12 is carried out, a dye, a cross-linking agent and a proper amount of water are put into a containing groove 3Mixing is performed to obtain a dye liquor 31, the temperature of which is 20-40 ℃, preferably, the dye liquor 31 is only at normal temperature. Wherein the mass percentage of the dye is 0.01-10%, the mass percentage of the cross-linking agent is 0.01-30%, and the mass percentage of the water is 60-99.8%. The dye comprises a chromophore group, and a dye containing hydroxyl (-OH) or amino (-NH) 2 ) Is a color assisting functional group. The dye may be an acid dye or a reactive dye, depending on the desired color of the dye, and the chromophoric group refers to a color-related part of the molecule. Color is created when a molecule absorbs light of a particular visible wavelength that emits or reflects light of other wavelengths. The crosslinking agent contains isocyanate groups (-NCO). In addition, the molar ratio of isocyanate groups (-NCO) to hydroxyl groups (-OH) is 1-50, and the dye liquor 31 can be stored for 0.5-24 hours, can be reused, and does not affect the dyeing effect when being reused.
Then, the dip dyeing step 13 is performed to dip the rayon material 2 into the accommodating groove 3 to obtain a dyed rayon. Wherein, the dip dyeing step 13 further comprises a pressing member 4 disposed on the accommodating groove 3, the pressing member 4 can adjust the height of the pressing member relative to the accommodating groove 3, for example, the water level of the dye solution 31 in the accommodating groove 3 is reduced, the pressing member 4 can move towards the accommodating groove 3, the height of the pressing member 4 is reduced, so that the artificial fiber 2 can be fully dip dyed in the dye solution 31, and the waste liquid is reduced; otherwise, if the level of the dye solution 31 in the accommodating groove 3 is increased, the pressing member 4 can move in the opposite direction of the accommodating groove 3, and the height of the pressing member 4 is increased, so that the artificial fiber 2 can be properly immersed in the dye solution 31 without excessive dyeing. Therefore, the artificial fiber 2 and the dye solution 31 do not need to maintain a certain bath ratio, and as long as the dye solution 31 in the accommodating groove 3 maintains a certain dyeing concentration, the dip-dyeing position of the artificial fiber 2 in the accommodating groove 3 can be adjusted by the pressing member 4, so as to achieve the effect of low bath ratio.
Preferably, the accommodating groove 3 in the dip dyeing step 13 may be multi-groove, so that the artificial fiber 2 is subjected to the dip dyeing step 13 twice to deepen the color thereof, so as to be convenient for matching with the dyeing depth requirement.
Then, in the dip-dyeing step 13, the dip-dyeing time per unit volume of the artificial fiber 2 is not more than 5 seconds to achieve a continuous dip-dyeing effect. Compared with the traditional dyeing method, the method has the advantages that the dyeing object is soaked in the dye liquor 31 for several minutes or longer for several minutes, the soaking time can be effectively shortened, and the dyeing efficiency can be improved.
Then, the rolling step 14 is performed, the dyed artificial fiber 2 is rolled and flattened by using a roller set 5, wherein the roller set 5 has two rollers 51 arranged oppositely, so that the dyed artificial fiber 2 can be flattened and dehydrated, crease is reduced, subsequent drying and shaping are facilitated, and multiple groups of rollers 51 can be arranged in practical implementation to achieve better flattening and dehydrating effects.
Finally, the drying step 15 is performed, and the dyed artificial fiber 2 is dried at 120-180 ℃ for 30 minutes. In actual operation, a dryer 6 can be utilized to dry, so as to achieve the fixation effect.
It is worth mentioning that various countries have different test standards for color fastness, such as the color fastness test of national standards CNS of China, AATCC of the United states, japanese JIS, international standards ISO, german DIN and British BS, in the preferred embodiment, the dyed artificial fiber 2 is subjected to the color fastness test by the AATCC 61-II A standard of the United states, the color fastness can reach more than 3 levels, no obvious fading or discoloration phenomenon exists, and the aesthetic feeling of the appearance of the dyed object can be maintained.
The dyeing method of the artificial fiber of the present invention further comprises a winding step 16 located after the drying step 15, and the dyed artificial fiber 2 is wound up. In actual operation, the winding machine 7 can be utilized to roll up, so that crease marks generated by the artificial fiber 2 can be avoided, and the subsequent use is convenient.
The dyeing method of the artificial fiber of the invention further comprises a cutting step 17 positioned after the winding step 16, and the artificial fiber 2 after being wound for a certain length is cut to obtain a finished product. In practice, a cutter 8 may be used for cutting.
The overall productivity of the invention can reach the production speed of 3-30 m/min. The production speed is affected by the size of the dryer 8, for example, the dryer 8 is used for drying step 15, more dyeings can be contained in the dryer 8 to shorten the production time and increase the production speed to 30 m/min; on the contrary, if the drying is performed by the small dryer 8, less dye is contained in the dryer 8, which can prolong the production time and reduce the production speed to 3 m/min. The size of the dryer 8 can be determined by the user according to the actual production environment, and the detailed description is omitted. In addition, as the method of the invention is an in-line operation, the rolling step 16 at the rear end can adjust the rolling speed of the machine according to the artificial fibers 2 with different thickness and elasticity to control the time of immersing the artificial fibers 2 in the accommodating groove 3, so as to achieve the purposes of continuous dyeing, drying and mass production.
From the above description, it is clear that the dyeing method of the artificial fiber of the present invention does have the following advantages:
1. energy saving
The dyeing step 13 can be implemented at normal temperature without high temperature in the whole process, and reduces the electricity cost and energy consumption. In addition, the use of the pressing piece 4 can adjust the dip-dyeing position of the dyed object according to the quantity of the dye liquor 31, so that the effect of low bath ratio is achieved, and the color fastness can reach more than 3 levels.
2. Improving efficiency
The dip dyeing step 13 shortens the dip dyeing time of the dyed object, improves the dyeing efficiency, does not affect the dyeing effect, and the rolling step 14, the drying step 15, the rolling step 16 and the cutting step 17 can be finished by one-step drying, rolling and cutting of the dyed object through a continuous operation process, thereby facilitating the subsequent transportation and utilization of the artificial fiber 2.
3. Environment-friendly
The dye used in the invention does not contain or generate harmful aromatic amine, has strong biodegradability, does not contain persistent organic pollutants, and accords with the trend of modern ecological environmental protection.
In summary, the dyeing method of the artificial fiber of the present invention can use the chromophores and the auxiliary chromophores of different dye molecules according to the requirements of different artificial fibers 2 on different colors, and besides the color is complete, the mass dyeing quality is stable, no color difference is caused, the artificial fiber 2 does not lose the characteristics of air permeability and the touch feeling thereof due to dyeing, and the color fastness can still reach more than 3 levels through the test of the applicant by the American AATCC 61-II A standard. In addition, the artificial fiber 2 is prepared, mixed, impregnated, rolled, dried, rolled, cut and the like through a series of dyeing processes, the efficiency of the process is improved through a continuous operation, so that the dyed artificial fiber 2 is obtained, the whole dyeing process and time can be shortened, the dye is reduced in the process, the water consumption is low, the discharged waste liquid is reduced, the aim of environmental friendliness can be achieved, the market demand is fully met, and the competitive power in the market is further improved, so that the aim of the invention can be achieved.
The foregoing description is only illustrative of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover all modifications and variations within the scope of the present invention as defined in the appended claims and their equivalents.
Claims (5)
1. A method of dyeing a synthetic fiber, comprising the steps of:
a preparation step of preparing an artificial fiber;
a mixing step, namely putting a dye, a cross-linking agent and a proper amount of water into a containing groove for mixing to obtain a dye solution; the mass percentage of the dye is 0.01 to 10 percent, the mass percentage of the cross-linking agent is 0.01 to 30 percent, and the mass percentage of the water is 60 to 99.8 percent; the dye comprises a color-forming group and a color-assisting functional group containing hydroxyl or amino, and the cross-linking agent comprises isocyanate groups; the mole ratio of the isocyanate group to the hydroxyl group is 1-50, so that the dye solution mixed by the dye, the cross-linking agent and the water can be stored for 0.5-24 hours, the dip dyeing temperature of the artificial fiber is 20-40 ℃, and the dip dyeing time of the artificial fiber is not more than 5 seconds;
a dip-dyeing step of dipping the artificial fiber into the accommodating groove to obtain a dyed artificial fiber; the dip dyeing step further comprises a pressing part arranged on the accommodating groove, wherein the pressing part can adjust the setting height of the pressing part relative to the accommodating groove, when the dye liquor level in the accommodating groove is reduced, the pressing part can move towards the direction of the accommodating groove, the height of the pressing part is reduced, so that the artificial fiber can be fully dipped in the dye liquor to reduce waste liquor, and when the dye liquor level in the accommodating groove is increased, the pressing part can move towards the opposite direction of the accommodating groove, and the height of the pressing part is increased, so that the artificial fiber is properly dipped in the dye liquor to avoid excessive dyeing;
a rolling step, namely rolling and leveling the dyed artificial fiber by utilizing a roller group, wherein the roller group is provided with two rollers which are oppositely arranged; and
And a drying step, drying the dyed artificial fiber.
2. The method of dyeing rayon according to claim 1, wherein in said dip dyeing step, said tank is a multi-tank.
3. The method of dyeing a rayon fiber according to claim 2, wherein said dyed rayon fiber has a color fastness of up to 3 or more.
4. The method of claim 3, further comprising a winding step after the drying step, wherein the dyed artificial fiber is wound up.
5. The method of dyeing a rayon fiber according to claim 4, further comprising a cutting step after the winding step, wherein the rayon fiber wound up to a certain length is cut to obtain a finished product, and the dyeing method has an overall production speed of 3 to 30 m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910495935.4A CN112064370B (en) | 2019-06-10 | 2019-06-10 | Dyeing method of artificial fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910495935.4A CN112064370B (en) | 2019-06-10 | 2019-06-10 | Dyeing method of artificial fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112064370A CN112064370A (en) | 2020-12-11 |
| CN112064370B true CN112064370B (en) | 2023-05-02 |
Family
ID=73658748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910495935.4A Active CN112064370B (en) | 2019-06-10 | 2019-06-10 | Dyeing method of artificial fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112064370B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200634203A (en) * | 2005-03-29 | 2006-10-01 | Liang Haw Technology Co Ltd | Printing and dyeing process for micro fiber fabrics |
| CN101235599A (en) * | 2007-01-30 | 2008-08-06 | 上海依福瑞实业有限公司 | Dyeing method for normal polypropylene fiber products |
| CN101532259A (en) * | 2009-04-14 | 2009-09-16 | 东华大学 | Method for dyeing reactive dye by one-step method without salt |
| EP3056549A1 (en) * | 2015-02-10 | 2016-08-17 | Ahlstrom Corporation | Colorant composition and uses thereof |
| JP2018009266A (en) * | 2016-07-15 | 2018-01-18 | 小松精練株式会社 | Dyeing method and fiber product |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2018289505B2 (en) * | 2017-06-22 | 2022-02-10 | Cotton Incorporated | Fabric treatment compositions and methods |
-
2019
- 2019-06-10 CN CN201910495935.4A patent/CN112064370B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200634203A (en) * | 2005-03-29 | 2006-10-01 | Liang Haw Technology Co Ltd | Printing and dyeing process for micro fiber fabrics |
| CN101235599A (en) * | 2007-01-30 | 2008-08-06 | 上海依福瑞实业有限公司 | Dyeing method for normal polypropylene fiber products |
| CN101532259A (en) * | 2009-04-14 | 2009-09-16 | 东华大学 | Method for dyeing reactive dye by one-step method without salt |
| EP3056549A1 (en) * | 2015-02-10 | 2016-08-17 | Ahlstrom Corporation | Colorant composition and uses thereof |
| JP2018009266A (en) * | 2016-07-15 | 2018-01-18 | 小松精練株式会社 | Dyeing method and fiber product |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112064370A (en) | 2020-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109196157B (en) | Multifunctional continuous dyeing device for warp chain of fabric | |
| Jovanĉić et al. | Shrinkage properties of peroxide-enzyme-biopolymer treated wool | |
| CN101725052A (en) | Waterborne polyurethane resin superfiber leather and manufacturing method thereof | |
| CN104746368A (en) | Carrier method dyeing technology for polyester fiber | |
| CN111648140A (en) | Dyeing process of polyester fabric | |
| CN111235906A (en) | Dyeing process of suede nap | |
| CN111877033B (en) | Environment-friendly and energy-saving dyeing method of sulfur black dye and sulfur black yarn | |
| CN112878060A (en) | Preparation method and preparation device of degradable tencel trademark tape | |
| CN112127182A (en) | Embossing printing process of polyester fabric | |
| CN105625060A (en) | Rubbing fastness improving finishing process of deep color cotton and blended fabric thereof | |
| CN112064370B (en) | Dyeing method of artificial fiber | |
| AU747983B2 (en) | Method for treating fibrous cellulosic materials | |
| CN113584912B (en) | Multifunctional color fastness improver for impregnation and preparation method thereof | |
| TW202020255A (en) | Multipurpose machine and methods for dyeing fabrics and warp yarns | |
| Hassabo et al. | Evaluation of various printing techniques for cotton fabrics | |
| TWI702325B (en) | Method for dyeing artificial fiber | |
| CN108824021B (en) | Method for dyeing real silk and crease-resistant finishing based on coupling reaction | |
| US10697115B1 (en) | Method for dyeing artificial fibers | |
| CN112341594B (en) | Preparation method of waterborne polyurethane color fixing agent | |
| CN210439047U (en) | Vulcanization dyeing device | |
| Verma et al. | Optimization of reactive dyeing process for chitosan treated cotton fabric | |
| CN107151922A (en) | A kind of mill flower process of Waterproof Breathable type pure cotton cloth | |
| CN112813698A (en) | Ecological induction color-changing water-based PU fabric and production method thereof | |
| CN113215838A (en) | Rayon dyeing process in low-temperature environment | |
| Hoque et al. | Study on waterless chemical effect on indigo rope dyeing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |