CN115369643B - Reactive dye staining-prevention low-temperature washing method - Google Patents
Reactive dye staining-prevention low-temperature washing method Download PDFInfo
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- CN115369643B CN115369643B CN202210955808.XA CN202210955808A CN115369643B CN 115369643 B CN115369643 B CN 115369643B CN 202210955808 A CN202210955808 A CN 202210955808A CN 115369643 B CN115369643 B CN 115369643B
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- 238000005406 washing Methods 0.000 title claims abstract description 188
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000000985 reactive dye Substances 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 113
- 239000004744 fabric Substances 0.000 claims abstract description 102
- 239000003960 organic solvent Substances 0.000 claims abstract description 88
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 80
- 239000007788 liquid Substances 0.000 claims description 41
- 239000011259 mixed solution Substances 0.000 claims description 25
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 24
- 239000007853 buffer solution Substances 0.000 claims description 22
- 229910052708 sodium Inorganic materials 0.000 claims description 19
- 239000011734 sodium Substances 0.000 claims description 19
- 239000012752 auxiliary agent Substances 0.000 claims description 16
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 15
- AFWTZXXDGQBIKW-UHFFFAOYSA-N C14 surfactin Natural products CCCCCCCCCCCC1CC(=O)NC(CCC(O)=O)C(=O)NC(CC(C)C)C(=O)NC(CC(C)C)C(=O)NC(C(C)C)C(=O)NC(CC(O)=O)C(=O)NC(CC(C)C)C(=O)NC(CC(C)C)C(=O)O1 AFWTZXXDGQBIKW-UHFFFAOYSA-N 0.000 claims description 14
- NJGWOFRZMQRKHT-UHFFFAOYSA-N surfactin Natural products CC(C)CCCCCCCCCC1CC(=O)NC(CCC(O)=O)C(=O)NC(CC(C)C)C(=O)NC(CC(C)C)C(=O)NC(C(C)C)C(=O)NC(CC(O)=O)C(=O)NC(CC(C)C)C(=O)NC(CC(C)C)C(=O)O1 NJGWOFRZMQRKHT-UHFFFAOYSA-N 0.000 claims description 14
- NJGWOFRZMQRKHT-WGVNQGGSSA-N surfactin C Chemical compound CC(C)CCCCCCCCC[C@@H]1CC(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CC(C)C)C(=O)N[C@H](CC(C)C)C(=O)N[C@@H](C(C)C)C(=O)N[C@@H](CC(O)=O)C(=O)N[C@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)O1 NJGWOFRZMQRKHT-WGVNQGGSSA-N 0.000 claims description 14
- 238000005507 spraying Methods 0.000 claims description 13
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- VMHLLURERBWHNL-UHFFFAOYSA-M Sodium acetate Chemical compound [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims description 12
- 229960000583 acetic acid Drugs 0.000 claims description 12
- 239000012362 glacial acetic acid Substances 0.000 claims description 12
- 239000001632 sodium acetate Substances 0.000 claims description 12
- 235000017281 sodium acetate Nutrition 0.000 claims description 12
- ASWBNKHCZGQVJV-UHFFFAOYSA-N (3-hexadecanoyloxy-2-hydroxypropyl) 2-(trimethylazaniumyl)ethyl phosphate Chemical class CCCCCCCCCCCCCCCC(=O)OCC(O)COP([O-])(=O)OCC[N+](C)(C)C ASWBNKHCZGQVJV-UHFFFAOYSA-N 0.000 claims description 11
- 239000004366 Glucose oxidase Substances 0.000 claims description 11
- 108010015776 Glucose oxidase Proteins 0.000 claims description 11
- 229940116332 glucose oxidase Drugs 0.000 claims description 11
- 235000019420 glucose oxidase Nutrition 0.000 claims description 11
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- 239000002245 particle Substances 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- 229920002261 Corn starch Polymers 0.000 claims description 5
- 239000008120 corn starch Substances 0.000 claims description 5
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 claims description 4
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 4
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 claims description 2
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 claims description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 2
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims 1
- 238000004043 dyeing Methods 0.000 abstract description 10
- 238000010186 staining Methods 0.000 abstract description 9
- 238000004134 energy conservation Methods 0.000 abstract description 7
- 239000007921 spray Substances 0.000 description 22
- 238000010438 heat treatment Methods 0.000 description 21
- 239000000835 fiber Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 10
- 239000000975 dye Substances 0.000 description 9
- 238000007667 floating Methods 0.000 description 7
- 238000004804 winding Methods 0.000 description 6
- 238000002835 absorbance Methods 0.000 description 5
- 239000006172 buffering agent Substances 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 238000005562 fading Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 3
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 3
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 108090000623 proteins and genes Proteins 0.000 description 2
- 102000004169 proteins and genes Human genes 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/22—Processes involving successive treatments with aqueous and organic agents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/02—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using organic solvents
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L1/00—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods
- D06L1/12—Dry-cleaning or washing fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods using aqueous solvents
-
- 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
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
-
- 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
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
Abstract
The invention relates to a reactive dye staining-prevention low-temperature washing method, which comprises the steps of sequentially configuring a washing section, a mixed washing section and a soaping section along a flow path of cold water; continuously adding an organic solvent into one end of the mixed washing section close to the water washing section; continuously feeding soaping agent into one end of the soaping section close to the mixed washing section; and a process of washing the dyed fabric sequentially through a soaping section, a mixed washing section and a washing section. According to the invention, the dyeing fabric and the cold water are reversely conveyed, and the organic solvent and the soaping agent are sequentially supplemented on the flowing path of the cold water, so that the flooding can be sufficiently removed, the color fastness and the anti-staining performance of the dyeing fabric are ensured, the consumption and the treatment burden of resources such as water, heat energy and the like are greatly reduced, and the purposes of energy conservation and emission reduction are achieved.
Description
Technical Field
The invention relates to the technical field of dyeing and finishing, in particular to a reactive dye staining-prevention low-temperature washing method.
Background
Reactive dyes, also known as reactive dyes, contain reactive groups in their molecules that react with hydroxyl groups in the fiber and amino groups in the protein fiber, forming covalent bonds with the fiber during dyeing, resulting in "dye-fiber" compounds. And because the reactive dye has the characteristics of bright color, good uniformity, gradual dyeing, complete color spectrum and lower cost, the reactive dye is widely applied to the dyeing or printing process of hydroxyl, amino or imino-containing fibers (such as cellulose fibers, protein fibers, nylon fibers and the like), yarns or fabrics so as to obtain better dyeing fastness.
The existing reactive dye can not completely react with the fiber in the printing and dyeing process, and the utilization rate of the reactive dye is about 70%. At the same time, there are some unreacted dyes and hydrolyzed dyes on the fiber, yarn or fabric that need to be removed by washing, otherwise seriously affecting the wash and rub fastness of the product. In addition, these unreacted dyes continue to react with the light or white background fabric to stain, resulting in staining. Therefore, after dyeing with reactive dyes, washing to improve the color fastness of the product and removing hydrolytic dyes from fabrics plays an important role.
Currently, the washing process of dyed fabrics includes hot water washing, cold water washing, soaping with soaping agent, and cold water washing. The method needs to carry out soaping and hot water washing for a plurality of times at 95-105 ℃ to remove the floating color on the surface of the dyed fabric, and the washing process needs to consume a large amount of water and heat energy, so that the pollution discharge amount and pollution are increased, and the production cost is increased. In addition, the soaping agent used in the industry at present is mainly a chemical soaping agent composed of a surfactant and a compound thereof, so that the burden of wastewater treatment is further increased, and the energy conservation, emission reduction and environmental protection of dyeing are directly affected.
Therefore, there is a need for improving the washing method of dyed fabrics dyed by reactive dyes, so as to reduce the consumption and processing load of water, heat energy and other resources in the washing process while removing the flooding on the surface of the dyed fabrics and improving the washing color fastness and rubbing color fastness, and realize the purposes of energy conservation, emission reduction and environmental protection.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provide a reactive dye staining-prevention low-temperature washing method which can ensure the color fastness and staining-prevention performance of dyed fabrics and achieve the purposes of energy conservation and emission reduction.
The above object of the present invention is achieved by the following technical solutions:
a reactive dye staining-preventing low-temperature washing method comprises the following steps of,
a process of sequentially configuring a washing section, a mixing washing section and a soaping section along a flow path of cold water;
continuously adding an organic solvent into one end of the mixed washing section, which is close to the water washing section, and controlling the volume concentration of the organic solvent to be 20-30%;
continuously adding a soaping agent into one end of the soaping section close to the mixed washing section, and controlling the concentration of the soaping agent to be 0.10-1.00 g/L; the soaping agent is prepared from the following raw materials, by weight, 20-40% of sodium surfactin, 20-40% of glucose oxidase, 20-40% of hydrogenated lysolecithin and 10-20% of multifunctional auxiliary agent;
and a process of washing the dyed fabric sequentially through a soaping section, a mixed washing section and a washing section.
By adopting the technical scheme, when in washing, the water flow direction is opposite to the conveying direction of the dyed fabric, and the organic solvent and the soaping agent are sequentially supplemented on the flow path of the cold water, so that the purposes of saving energy, reducing emission and protecting environment can be realized while the soaping, mixed washing and water washing of the dyed fabric are realized, and the consumption and treatment burden of resources such as water, heat energy and the like are greatly reduced; when the dyed fabric passes through a soaping section, sodium surfactin is taken as a main soaping component and is obtained through biological fermentation, the concentration of the sodium surfactin in a mixed solution is about 0.02-0.40 g/L, the sodium surfactin permeates between a floating color and plant fibers by reducing the surface tension, the surface complexion of the dyed fabric can be effectively removed and the wet friction fastness is improved even in an alkaline environment, meanwhile, hydrogenated lysolecithin can form a compound system with the sodium surfactin, the emulsion stability of the soaping agent under an acidic condition is improved, the synergy of reducing the surface tension and the efficiency of the soaping agent is realized, in addition, glucose oxidase can be further compounded with the compound system, the oxidation resistance of the mixed solution in the soaping section is improved, the floating color is fully taken away, the recombination of the floating color and the fabric fibers is prevented, the treatment burden of the mixed solution after washing can be reduced, and finally, the components are dispersed, emulsified and solubilized through a multifunctional auxiliary agent so that higher washing efficiency and washing effect are obtained; when the dyed fabric passes through the soaping section and the mixed washing section, the combination of the organic solvent and the water not only can promote the dissolution of the floating color and reduce the good use of water resources, but also can reduce the washing temperature from 95-105 ℃ to 40-45 ℃, and finally, the dyed fabric is washed for 1 time by cold water, thereby achieving the purposes of energy conservation, emission reduction and environmental protection; in the process, the organic solvent and the soaping agent are sequentially supplemented on the flowing path of the cold water by reversely conveying the dyed fabric and the cold water, so that the floating color can be fully removed, the color fastness and the color staining resistance of the dyed fabric are ensured, the consumption and the processing burden of resources such as water, heat energy and the like are greatly reduced, and the purposes of energy conservation and emission reduction are achieved.
Further, the organic solvent is one or a combination of a plurality of methanol, ethanol, propanol, isopropanol, butanol, acetone, butanone, methyl isobutyl ketone, acetonitrile and N, N-dimethylformamide.
Further, the multifunctional auxiliary agent is sodium carboxymethyl corn starch, and the mass ratio of the sodium surfactin, the glucose oxidase and the hydrogenated lysolecithin is 1.00: (0.05-1.50): (1.00-2.00).
Or the multifunctional auxiliary agent is polyvinylpyrrolidone, and the mass ratio of the sodium surfactin, the glucose oxidase and the hydrogenated lysolecithin is 1.00: (1.00-2.00): (0.05 to 1.50).
Further, in the water washing section, the water inlet temperature is controlled to be 20-25 ℃, the washing time is controlled to be 5-10 min, and the bath ratio is 1: (40-60).
Further, in the mixed washing section, after the organic solvent is thrown into the section for 0-2 min, the temperature of the mixed solution of the organic solvent and water is raised at a speed of 1-2 ℃/min, the temperature of the discharged solution is controlled to be 28-32 ℃, the washing time is controlled to be 10-15 min, and the bath ratio is 1: (10-20).
Furthermore, in the mixing and washing section, the distance between the organic solvent feeding port and the liquid level is controlled to be 5-50 cm.
Further, in the soaping section, after the soaping agent is added for 0-2 min, the temperature of the mixed liquid of the soaping agent, the organic solvent and the water is raised at the speed of 1-2 ℃/min, the liquid outlet temperature is controlled to be 40-45 ℃, the washing time is 20-25 min, and the bath ratio is 1: (10-20).
Further, in the soaping section, the distance between the soaping agent feeding port and the liquid level is controlled to be 5-50 cm.
Further, the method further comprises the steps of atomizing and spraying the buffer solution on the surfaces of the two sides of the dyed fabric in advance, wherein the atomized particle size of the buffer solution is controlled to be 100-200 mu m, and the spraying amount is 0.4-0.6L per square meter; wherein the buffer solution comprises 0.30-0.50 g/L glacial acetic acid and 0.10-0.25 g/L sodium acetate.
In summary, the beneficial technical effects of the invention are as follows: by reversely conveying the dyed fabric and the cold water and sequentially supplementing the organic solvent and the soaping agent on the flowing path of the cold water, the floating color can be fully removed, the color fastness and the color staining resistance of the dyed fabric are ensured, the consumption and the processing burden of resources such as water, heat energy and the like are greatly reduced, and the purposes of energy conservation and emission reduction are achieved.
Drawings
FIG. 1 is a flow chart of a method provided by the present invention;
FIG. 2 is a block diagram of a washing system implementing the method of the present invention;
in the figure, 1, an atomization spraying device; 2. a soaping tank; 21. a liquid outlet; 22. a soaping agent feeding port; 3. a mixing washing tank; 31. an organic solvent feed port; 4. a washing tank; 41. a water inlet; 5. a roller set; 6. a heating element.
Detailed Description
The invention will be further described with reference to the drawings and detailed description in order to make the technical means, the creation characteristics, the achievement of the objects and the functions of the invention more clear and easy to understand.
Example 1: the invention discloses a reactive dye staining-preventing low-temperature washing method which comprises the following steps of,
a) A process of sequentially configuring a washing section, a mixing washing section and a soaping section along a flow path of cold water;
b) Continuously adding an organic solvent into one end of the mixed washing section, which is close to the water washing section;
c) Continuously adding soaping agent into one end of the soaping section close to the mixed washing section;
d) Atomizing spraying buffer solution on the surfaces of two sides of the dyed fabric in advance;
e) The dyed fabric is sequentially washed by a soaping section, a mixed washing section and a washing section.
Referring to fig. 1 and 2, the method of the present invention is embodied in such a way that,
s1 configuration washing system
The washing system comprises an atomization spraying device 1, a soaping tank 2, a mixing washing tank 3, a washing tank 4 and a roller group 5, wherein the atomization spraying device 1, the soaping tank 2, the mixing washing tank 3, the washing tank 4 and the roller group 5 are sequentially connected along the direction of a dyed fabric conveying path, the soaping section is formed, the mixing washing section is formed, the washing section is formed, and the roller group is used for winding dyed fabric; wherein, the atomizing spray device 1 (commercially available) is arranged on the soaping tank 2 in a way that a spray opening faces to the surfaces of two sides of dyed fabrics, a liquid outlet 21 is arranged at one end of the soaping tank 2, which is far away from the mixed washing tank 3, a soaping agent feeding opening 22 is arranged at one end of the soaping tank 2, which is close to the mixed washing tank 3, an organic solvent feeding opening 31 is arranged at one end of the mixed washing tank 3, which is close to the water washing tank 4, a water inlet 41 is arranged at one end of the water washing tank 4, which is far away from the mixed washing tank 3, and the roller group 5 is arranged in the soaping tank 2, the mixed washing tank 3 and the water washing tank 4;
s2 preparing buffering agent, soaping agent and organic solvent
The S21 buffer solution is formed by mixing glacial acetic acid, sodium acetate and water, wherein the concentration of the glacial acetic acid is 0.40g/L, and the concentration of the sodium acetate is 0.20g/L;
the S22 soaping agent is prepared by mixing the following raw materials in parts by weight, 30.00 parts of sodium surfactin, 30.00 parts of glucose oxidase, 36.00 parts of hydrogenated lysolecithin and 4.00 parts of multifunctional auxiliary agent; wherein the multifunctional auxiliary agent is sodium carboxymethyl corn starch;
s23, the organic solvent is ethanol;
s3 preparing a washing liquid
S31, continuously feeding cold water at 22 ℃ into the washing section from the water inlet 41, and enabling the cold water to flow through the washing section, the mixed washing section and the soaping section in sequence;
s32, continuously feeding the organic solvent into a mixing and washing section through an organic solvent feed port 31, and controlling the volume concentration of the organic solvent to be 25%, wherein the distance between the organic solvent feed port 31 and the liquid level is 5-50 cm; after the organic solvent is conveyed along with water flow and mixed for 0-2 min, heating the mixed solution of the organic solvent and water by a heating element 6 arranged in a mixing washing tank 3 at a speed of 1 ℃/min, and controlling the temperature of the discharged solution to be 30 ℃;
s33, continuously feeding the soaping agent into the soaping section from a soaping agent feeding hole 22, and controlling the concentration of the soaping agent to be 0.50g/L, wherein the distance between the soaping agent feeding hole 22 and the liquid level is 5-50 cm; after the soaping agent is conveyed along with water flow and mixed for 0-2 min, heating the mixed liquid of the soaping agent, the organic solvent and the water by a heating element 6 arranged in a soaping tank 2 at a speed of 2 ℃/min, and controlling the temperature of the liquid outlet to be 42 ℃;
s34, outputting a mixed solution of the soaping agent, the organic solvent and the water from the liquid outlet 21;
s4 washing of dyed fabrics
S41, winding the dyed fabric on the roller set 5 in advance, and a traction device (not shown in the figure) arranged on and/or downstream of the washing system may sequentially convey the dyed fabric through the atomizing spray device 1, the soaping section, the mixed washing section and the washing section;
s42, when the dyed fabric passes through the atomizing spray device 1, the atomizing spray device 1 atomizes and sprays buffer solution on the surfaces of two sides of the dyed fabric, and the atomized particle size of the buffer solution is controlled to be 200 mu m, and the spraying amount is 0.5L/square meter;
s43, immersing the dyed fabric in a mixed solution of a soaping agent, an organic solvent and water in a soaping section, controlling the washing time of the dyed fabric to be 22min, and controlling the bath ratio to be 1:15;
s44, in the mixed washing section, immersing the dyed fabric in a mixed solution of an organic solvent and water, controlling the washing time of the dyed fabric to be 12min, and controlling the bath ratio to be 1:15;
s45, immersing the dyed fabric in cold water in a water washing section, controlling the washing time of the dyed fabric to be 7min, and controlling the bath ratio to be 1:50;
and S46, squeezing and dehydrating the dyed fabric after washing, and discharging.
The absorbance of the mixture of the soaping agent, the organic solvent and the water after washing is measured, and the concentration of the dye in the mixture is calculated to be 17mg/L according to the standard curve of the reactive dye.
The soaping color fastness and rubbing color fastness of the dyed fabric after washing were measured, wherein the original color fading was 5 grades, the white cloth staining was 5 grades, the dry rubbing was 5 grades, and the wet rubbing was 5 grades.
Example 2: the invention discloses a reactive dye staining-preventing low-temperature washing method, which is different from the embodiment in that the specific implementation modes of S2 and S3 are as follows,
s2 preparing buffering agent, soaping agent and organic solvent
The S21 buffer solution is formed by mixing glacial acetic acid, sodium acetate and water, wherein the concentration of the glacial acetic acid is 0.35g/L, and the concentration of the sodium acetate is 0.15g/L;
the S22 soaping agent is prepared by mixing the following raw materials in parts by weight, 25.00 parts of sodium surfactin, 37.50 parts of glucose oxidase, 25.00 parts of hydrogenated lysolecithin and 12.50 parts of multifunctional auxiliary agent; wherein the multifunctional auxiliary agent is polyvinylpyrrolidone;
s23, the organic solvent is acetone;
s3 preparing a washing liquid
S31, continuously feeding cold water at 20 ℃ into the washing section from the water inlet 41, and enabling the cold water to flow through the washing section, the mixed washing section and the soaping section in sequence;
s32, continuously feeding the organic solvent into a mixing and washing section through an organic solvent feed port 31, and controlling the volume concentration of the organic solvent to be 28%, wherein the distance between the organic solvent feed port 31 and the liquid level is 5-50 cm; after the organic solvent is conveyed along with water flow and mixed for 0-2 min, heating the mixed solution of the organic solvent and water by a heating element 6 arranged in a mixing washing tank 3 at a speed of 2 ℃/min, and controlling the temperature of the discharged liquid to be 32 ℃;
s33, continuously feeding the soaping agent into the soaping section from a soaping agent feeding port 22, and controlling the concentration of the soaping agent to be 0.10g/L, wherein the distance between the soaping agent feeding port 22 and the liquid level is 5-50 cm; after the soaping agent is conveyed along with water flow and mixed for 0-2 min, heating the mixed liquid of the soaping agent, the organic solvent and the water by a heating element 6 arranged in a soaping tank 2 at a speed of 1 ℃/min, and controlling the temperature of the liquid outlet to be 40 ℃;
s34, outputting a mixed solution of the soaping agent, the organic solvent and the water from the liquid outlet 21;
s4 washing of dyed fabrics
S41, winding the dyed fabric on the roller set 5 in advance, and a traction device (not shown in the figure) arranged on and/or downstream of the washing system may sequentially convey the dyed fabric through the atomizing spray device 1, the soaping section, the mixed washing section and the washing section;
s42, when the dyed fabric passes through the atomizing spray device 1, the atomizing spray device 1 atomizes and sprays buffer solution on the surfaces of two sides of the dyed fabric, the atomized particle size of the buffer solution is controlled to be 100 mu m, and the spraying amount is 0.4-0.6L/square meter;
s43, immersing the dyed fabric in a mixed solution of a soaping agent, an organic solvent and water in a soaping section, controlling the washing time of the dyed fabric to be 25min, and controlling the bath ratio to be 1:20, a step of;
s44, in the mixed washing section, immersing the dyed fabric in a mixed solution of an organic solvent and water, controlling the washing time of the dyed fabric to be 15min, and controlling the bath ratio to be 1:20, a step of;
s45, immersing the dyed fabric in cold water in a water washing section, controlling the washing time of the dyed fabric to be 8min, and controlling the bath ratio to be 1:60;
and S46, squeezing and dehydrating the dyed fabric after washing, and discharging.
The absorbance of the mixture of the soaping agent, the organic solvent and the water after washing is measured, and the concentration of the dye in the mixture is calculated to be 15mg/L according to the standard curve of the reactive dye.
And determining the soaping color fastness and the rubbing color fastness of the dyed fabric after washing, wherein the original color fading is 5 grades, the white cloth staining is 5 grades, the dry rubbing is 4-5 grades, and the wet rubbing is 4-5 grades.
Example 3: the invention discloses a reactive dye staining-preventing low-temperature washing method, which is different from the embodiment in that the specific implementation modes of S2 and S3 are as follows,
s2 preparing buffering agent, soaping agent and organic solvent
The S21 buffer solution is formed by mixing glacial acetic acid, sodium acetate and water, wherein the concentration of the glacial acetic acid is 0.50g/L, and the concentration of the sodium acetate is 0.25g/L;
the S22 soaping agent is prepared by mixing the following raw materials in parts by weight, 40.00 parts of sodium surfactin, 2.00 parts of glucose oxidase, 40.00 parts of hydrogenated lysolecithin and 18.00 parts of multifunctional auxiliary agent; wherein the multifunctional auxiliary agent is sodium carboxymethyl corn starch;
s23, the organic solvent is N, N-dimethylformamide;
s3 preparing a washing liquid
S31, continuously feeding cold water at 25 ℃ into the washing section from the water inlet 41, and enabling the cold water to flow through the washing section, the mixed washing section and the soaping section in sequence;
s32, continuously feeding the organic solvent into the mixing washing section through an organic solvent feed port 31, and controlling the volume concentration of the organic solvent to be 20%, wherein the distance between the organic solvent feed port 31 and the liquid level is 5-50 cm; after the organic solvent is conveyed along with water flow and mixed for 0-2 min, heating the mixed solution of the organic solvent and water by a heating element 6 arranged in a mixing washing tank 3 at a speed of 1 ℃/min, and controlling the temperature of the discharged solution to be 28 ℃;
s33, continuously feeding the soaping agent into the soaping section from a soaping agent feeding port 22, and controlling the concentration of the soaping agent to be 1.00g/L, wherein the distance between the soaping agent feeding port 22 and the liquid level is 5-50 cm; after the soaping agent is conveyed along with water flow and mixed for 0-2 min, heating the mixed liquid of the soaping agent, the organic solvent and the water by a heating element 6 arranged in a soaping tank 2 at a speed of 2 ℃/min, and controlling the temperature of the discharged liquid to be 45 ℃;
s34, outputting a mixed solution of the soaping agent, the organic solvent and the water from the liquid outlet 21;
s4 washing of dyed fabrics
S41, winding the dyed fabric on the roller set 5 in advance, and a traction device (not shown in the figure) arranged on and/or downstream of the washing system may sequentially convey the dyed fabric through the atomizing spray device 1, the soaping section, the mixed washing section and the washing section;
s42, when the dyed fabric passes through the atomizing spray device 1, the atomizing spray device 1 atomizes and sprays buffer solution on the surfaces of two sides of the dyed fabric, and the atomized particle size of the buffer solution is controlled to be 200 mu m, and the spraying amount is 0.6L/square meter;
s43, immersing the dyed fabric in a mixed solution of a soaping agent, an organic solvent and water in a soaping section, controlling the washing time of the dyed fabric to be 20min, and controlling the bath ratio to be 1:18;
s44, in the mixed washing section, immersing the dyed fabric in a mixed solution of an organic solvent and water, controlling the washing time of the dyed fabric to be 13min, and controlling the bath ratio to be 1:18;
s45, immersing the dyed fabric in cold water in a water washing section, controlling the washing time of the dyed fabric to be 5min, and controlling the bath ratio to be 1:55;
and S46, squeezing and dehydrating the dyed fabric after washing, and discharging.
The absorbance of the mixture of the soaping agent, the organic solvent and the water after washing is measured, and the concentration of the dye in the mixture is calculated to be 20mg/L according to the standard curve of the reactive dye.
The soaping color fastness and rubbing color fastness of the dyed fabric after washing were measured, wherein the original color fading was 5 grades, the white cloth staining was 5 grades, the dry rubbing was 5 grades, and the wet rubbing was 5 grades.
Example 4: the invention discloses a reactive dye staining-preventing low-temperature washing method, which is different from the embodiment in that the specific implementation modes of S2 and S3 are as follows,
s2 preparing buffering agent, soaping agent and organic solvent
The S21 buffer solution is formed by mixing glacial acetic acid, sodium acetate and water, wherein the concentration of the glacial acetic acid is 0.30g/L, and the concentration of the sodium acetate is 0.10g/L;
the S22 soaping agent is prepared by mixing the following raw materials in parts by weight, 35.00 parts of sodium surfactin, 42.00 parts of glucose oxidase, 3.15 parts of hydrogenated lysolecithin and 19.85 parts of multifunctional auxiliary agent; wherein the multifunctional auxiliary agent is polyvinylpyrrolidone;
s23, the organic solvent is ethanol;
s3 preparing a washing liquid
S31, continuously feeding cold water at 25 ℃ into the washing section from the water inlet 41, and enabling the cold water to flow through the washing section, the mixed washing section and the soaping section in sequence;
s32, continuously feeding the organic solvent into a mixing and washing section through an organic solvent feed port 31, and controlling the volume concentration of the organic solvent to be 22%, wherein the distance between the organic solvent feed port 31 and the liquid level is 5-50 cm; after the organic solvent is conveyed along with water flow and mixed for 0-2 min, heating the mixed solution of the organic solvent and water by a heating element 6 arranged in a mixing washing tank 3 at a speed of 2 ℃/min, and controlling the temperature of the discharged solution to be 29 ℃;
s33, continuously feeding the soaping agent into the soaping section from a soaping agent feeding port 22, and controlling the concentration of the soaping agent to be 0.80g/L, wherein the distance between the soaping agent feeding port 22 and the liquid level is 5-50 cm; after the soaping agent is conveyed along with water flow and mixed for 0-2 min, heating the mixed liquid of the soaping agent, the organic solvent and the water by a heating element 6 arranged in a soaping tank 2 at a speed of 1 ℃/min, and controlling the temperature of the liquid outlet to be 41 ℃;
s34, outputting a mixed solution of the soaping agent, the organic solvent and the water from the liquid outlet 21;
s4 washing of dyed fabrics
S41, winding the dyed fabric on the roller set 5 in advance, and a traction device (not shown in the figure) arranged on and/or downstream of the washing system may sequentially convey the dyed fabric through the atomizing spray device 1, the soaping section, the mixed washing section and the washing section;
s42, when the dyed fabric passes through the atomizing spray device 1, the atomizing spray device 1 atomizes and sprays buffer solution on the surfaces of two sides of the dyed fabric, and the atomized particle size of the buffer solution is controlled to be 100 mu m, and the spraying amount is 0.5L/square meter;
s43, immersing the dyed fabric in a mixed solution of a soaping agent, an organic solvent and water in a soaping section, controlling the washing time of the dyed fabric to be 21min, and controlling the bath ratio to be 1:10;
s44, in the mixed washing section, immersing the dyed fabric in a mixed solution of an organic solvent and water, controlling the washing time of the dyed fabric to be 10min, and controlling the bath ratio to be 1:10;
s45, immersing the dyed fabric in cold water in a water washing section, controlling the washing time of the dyed fabric to be 10min, and controlling the bath ratio to be 1:40, a step of performing a;
and S46, squeezing and dehydrating the dyed fabric after washing, and discharging.
The absorbance of the mixture of the soaping agent, the organic solvent and the water after washing is measured, and the concentration of the dye in the mixture is calculated to be 18mg/L according to the standard curve of the reactive dye.
And measuring the soaping color fastness and the rubbing color fastness of the dyed fabric after washing, wherein the original color fading is 5 grades, the white cloth staining is 4-5 grades, the dry rubbing is 5 grades, and the wet rubbing is 5 grades.
Example 5: the invention discloses a reactive dye staining-preventing low-temperature washing method, which is different from the embodiment in that the specific implementation modes of S2 and S3 are as follows,
s2 preparing buffering agent, soaping agent and organic solvent
The S21 buffer solution is formed by mixing glacial acetic acid, sodium acetate and water, wherein the concentration of the glacial acetic acid is 0.45g/L, and the concentration of the sodium acetate is 0.20g/L;
the S22 soaping agent is prepared by mixing the following raw materials in parts by weight, 20.00 parts of sodium surfactin, 30.00 parts of glucose oxidase, 40.00 parts of hydrogenated lysolecithin and 10.00 parts of multifunctional auxiliary agent; wherein the multifunctional auxiliary agent is sodium carboxymethyl corn starch;
s23, the organic solvent is acetone;
s3 preparing a washing liquid
S31, continuously feeding cold water at 23 ℃ into the washing section from the water inlet 41, and enabling the cold water to flow through the washing section, the mixed washing section and the soaping section in sequence;
s32, continuously feeding the organic solvent into a mixing and washing section through an organic solvent feed port 31, and controlling the volume concentration of the organic solvent to be 30%, wherein the distance between the organic solvent feed port 31 and the liquid level is 5-50 cm; after the organic solvent is conveyed along with water flow and mixed for 0-2 min, heating the mixed solution of the organic solvent and water by a heating element 6 arranged in a mixing washing tank 3 at a speed of 1 ℃/min, and controlling the temperature of the discharged solution to be 31 ℃;
s33, continuously feeding the soaping agent into the soaping section from a soaping agent feeding hole 22, and controlling the concentration of the soaping agent to be 0.30g/L, wherein the distance between the soaping agent feeding hole 22 and the liquid level is 5-50 cm; after the soaping agent is conveyed along with water flow and mixed for 0-2 min, heating the mixed liquid of the soaping agent, the organic solvent and the water by a heating element 6 arranged in a soaping tank 2 at a speed of 2 ℃/min, and controlling the temperature of the discharged liquid to be 43 ℃;
s34, outputting a mixed solution of the soaping agent, the organic solvent and the water from the liquid outlet 21;
s4 washing of dyed fabrics
S41, winding the dyed fabric on the roller set 5 in advance, and a traction device (not shown in the figure) arranged on and/or downstream of the washing system may sequentially convey the dyed fabric through the atomizing spray device 1, the soaping section, the mixed washing section and the washing section;
s42, when the dyed fabric passes through the atomizing spray device 1, the atomizing spray device 1 atomizes and sprays buffer solution on the surfaces of two sides of the dyed fabric, and the atomized particle size of the buffer solution is controlled to be 200 mu m, and the spraying amount is 0.5L/square meter;
s43, immersing the dyed fabric in a mixed solution of a soaping agent, an organic solvent and water in a soaping section, controlling the washing time of the dyed fabric to be 23min, and controlling the bath ratio to be 1:12;
s44, in the mixed washing section, immersing the dyed fabric in a mixed solution of an organic solvent and water, controlling the washing time of the dyed fabric to be 14 minutes, and controlling the bath ratio to be 1:12;
s45, immersing the dyed fabric in cold water in a water washing section, controlling the washing time of the dyed fabric to be 9min, and controlling the bath ratio to be 1:45;
and S46, squeezing and dehydrating the dyed fabric after washing, and discharging.
The absorbance of the mixture of the soaping agent, the organic solvent and the water after washing is measured, and the concentration of the dye in the mixture is calculated to be 16mg/L according to the standard curve of the reactive dye.
And measuring the soaping color fastness and the rubbing color fastness of the dyed fabric after washing, wherein the original color fading is 4-5 grades, the white cloth staining is 5 grades, the dry rubbing is 5 grades, and the wet rubbing is 5 grades.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (6)
1. A reactive dye staining-prevention low-temperature washing method is characterized in that: the method may include the steps of,
a process of sequentially configuring a washing section, a mixing washing section and a soaping section along a flow path of cold water;
continuously adding an organic solvent into one end of the mixed washing section, which is close to the water washing section, and controlling the volume concentration of the organic solvent to be 20-30%;
continuously adding a soaping agent into one end of the soaping section close to the mixed washing section, and controlling the concentration of the soaping agent to be 0.10-1.00 g/L; the soaping agent is prepared from the following raw materials, by weight, 20-40% of sodium surfactin, 20-40% of glucose oxidase, 20-40% of hydrogenated lysolecithin and 10-20% of multifunctional auxiliary agent;
and, a process of washing the dyed fabric sequentially through a soaping section, a mixed washing section and a washing section;
the multifunctional auxiliary agent is carboxymethyl corn starch sodium, and the mass ratio of the sodium surfactin, the glucose oxidase and the hydrogenated lysolecithin is 1.00: (0.05-1.50): (1.00-2.00);
in the soaping section, after the soaping agent is added for 0-2 min, the temperature of the mixed liquid of the soaping agent, the organic solvent and the water is increased at the speed of 1-2 ℃/min, the liquid outlet temperature is controlled to be 40-45 ℃, the washing time is controlled to be 20-25 min, and the bath ratio is 1: (10-20);
the method further comprises the steps of atomizing and spraying the buffer solution on the surfaces of the two sides of the dyed fabric in advance, wherein the atomized particle size of the buffer solution is controlled to be 100-200 mu m, and the spraying amount is 0.4-0.6L/square meter; wherein the buffer solution comprises 0.30-0.50 g/L glacial acetic acid and 0.10-0.25 g/L sodium acetate.
2. The reactive dye staining-prevention low-temperature washing method according to claim 1, wherein the method comprises the following steps of: the organic solvent is one or a combination of several of methanol, ethanol, propanol, butanol, acetone, butanone, methyl isobutyl ketone, acetonitrile and N, N-dimethylformamide.
3. The reactive dye staining-prevention low-temperature washing method according to claim 1, wherein the method comprises the following steps of: in the water washing section, the water inlet temperature is controlled to be 20-25 ℃, the washing time is controlled to be 5-10 min, and the bath ratio is 1: (40-60).
4. The reactive dye staining-prevention low-temperature washing method according to claim 1, wherein the method comprises the following steps of: in the mixed washing section, after the organic solvent is thrown into the section for 0-2 min, the temperature of the mixed solution of the organic solvent and water is raised at the speed of 1-2 ℃/min, the temperature of the discharged solution is controlled to be 28-32 ℃, the washing time is controlled to be 10-15 min, and the bath ratio is 1: (10-20).
5. The reactive dye staining-prevention low-temperature washing method of claim 4, wherein the method comprises the following steps of: in the mixing and washing section, the distance between the organic solvent feeding port and the liquid level is controlled to be 5-50 cm.
6. The reactive dye staining-prevention low-temperature washing method according to claim 1, wherein the method comprises the following steps of: in the soaping section, the distance between a soaping agent feeding port and the liquid level is controlled to be 5-50 cm.
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