CN114541154B - Method for regulating and controlling color of plant dye dyed fabric by using ligand - Google Patents
Method for regulating and controlling color of plant dye dyed fabric by using ligand Download PDFInfo
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- CN114541154B CN114541154B CN202210175122.9A CN202210175122A CN114541154B CN 114541154 B CN114541154 B CN 114541154B CN 202210175122 A CN202210175122 A CN 202210175122A CN 114541154 B CN114541154 B CN 114541154B
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- 239000004744 fabric Substances 0.000 title claims abstract description 64
- 239000003446 ligand Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 9
- 230000001276 controlling effect Effects 0.000 title claims abstract description 7
- 235000013311 vegetables Nutrition 0.000 claims abstract description 10
- 238000004043 dyeing Methods 0.000 claims abstract description 6
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 claims description 66
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 36
- 229940074391 gallic acid Drugs 0.000 claims description 33
- 235000004515 gallic acid Nutrition 0.000 claims description 33
- 239000011259 mixed solution Substances 0.000 claims description 24
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 18
- 238000001179 sorption measurement Methods 0.000 claims description 13
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 9
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 235000006408 oxalic acid Nutrition 0.000 claims description 6
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 4
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 4
- 239000012266 salt solution Substances 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- 229960002089 ferrous chloride Drugs 0.000 claims description 3
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 3
- 239000011790 ferrous sulphate Substances 0.000 claims description 3
- NMCUIPGRVMDVDB-UHFFFAOYSA-L iron dichloride Chemical compound Cl[Fe]Cl NMCUIPGRVMDVDB-UHFFFAOYSA-L 0.000 claims description 3
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 3
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 3
- 239000000975 dye Substances 0.000 abstract description 16
- 239000004753 textile Substances 0.000 description 15
- 239000000243 solution Substances 0.000 description 12
- 238000005406 washing Methods 0.000 description 11
- 239000000047 product Substances 0.000 description 10
- 241000196324 Embryophyta Species 0.000 description 8
- 239000000203 mixture Substances 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- DHMQDGOQFOQNFH-UHFFFAOYSA-N Glycine Chemical compound NCC(O)=O DHMQDGOQFOQNFH-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 230000000536 complexating effect Effects 0.000 description 3
- 239000004471 Glycine Substances 0.000 description 2
- -1 polyphenol organic compound Chemical class 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000193830 Bacillus <bacterium> Species 0.000 description 1
- 240000006766 Cornus mas Species 0.000 description 1
- 244000103090 Eucalyptus robusta Species 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 206010020751 Hypersensitivity Diseases 0.000 description 1
- 241000589517 Pseudomonas aeruginosa Species 0.000 description 1
- 240000001745 Rheum palmatum Species 0.000 description 1
- 235000008090 Rheum palmatum Nutrition 0.000 description 1
- 241000191967 Staphylococcus aureus Species 0.000 description 1
- 208000037386 Typhoid Diseases 0.000 description 1
- 208000026935 allergic disease Diseases 0.000 description 1
- 230000007815 allergy Effects 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 230000002019 anti-mutation Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000004071 biological effect Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910001447 ferric ion Inorganic materials 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000976 ink Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000000419 plant extract Substances 0.000 description 1
- 235000013824 polyphenols Nutrition 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 235000005221 swamp mahogany Nutrition 0.000 description 1
- 201000008297 typhoid fever Diseases 0.000 description 1
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
- D06P1/34—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 natural dyestuffs
-
- 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
- D06P1/64—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 using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/642—Compounds containing nitrogen
- D06P1/647—Nitrogen-containing carboxylic acids or their salts
-
- 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
- D06P1/653—Nitrogen-free carboxylic acids or their salts
- D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
-
- 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
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/67341—Salts or hydroxides of elements different from the alkaline or alkaline-earth metals or with anions containing those elements
-
- 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
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/30—Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Coloring (AREA)
Abstract
The invention belongs to the field of dyeing of vegetable dyes, and particularly relates to a method for regulating and controlling the color of a vegetable dye dyed fabric by using a ligand.
Description
Technical Field
The invention belongs to the field of dyeing of vegetable dyes, and particularly relates to a method for regulating and controlling the color of a dyed fabric by using a ligand.
Background
The dyed textile with the vegetable dye has soft color, and the vegetable dye has various effects of antibiosis, mite prevention, ultraviolet prevention, allergy resistance and the like, and is deeply favored by people. However, the chromatography of vegetable dyes is incomplete. Because of the large difference of different plant dye components and inconsistent dyeing process, it is difficult to expand the chromatographic range of the textile dyed by the plant dye by color matching of the dye. Although the color of most vegetable dyes can be changed by adopting different metal mordants, the selection of the mordants is limited to ferric salt, ferrous salt and aluminum salt at present in view of the ecological environmental protection, so how to enlarge the chromatographic range of the vegetable dyes has become one of key factors for limiting the popularization and application of the vegetable dyes.
Gallic acid is a polyphenol organic compound and widely exists in rheum palmatum, eucalyptus robusta, dogwood and other plants. Studies have shown that: gallic acid has various biological activities such as anti-inflammatory, anti-mutation, anti-oxidation, anti-free radical and the like; has inhibiting effects on Staphylococcus aureus, pseudomonas aeruginosa, typhoid bacillus and fungi. Gallic acid and ferric ions can generate blue-black precipitate, and are raw materials of blue-black ink. However, the use of gallic acid, a plant extract, has been reported to dye textiles less frequently.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a method for regulating and controlling the color of a plant dye dyed fabric by using a ligand, which takes gallic acid extracted from plants as a main raw material, and realizes the coloring of textiles by complexing and developing with iron ions and ferrous ions; different ligands are selected to regulate and control the dyeing process, so that dyed fabrics with different colors are obtained.
The method for regulating and controlling the color of the plant dye dyed fabric by utilizing the ligand provided by the invention comprises the following steps of:
(1) Dissolving gallic acid and different ligands in deionized water to prepare 50mL of mixed solution with the concentration of gallic acid of 1.0-4.0 g/L;
Wherein the ligand is one of citric acid, oxalic acid and ethylenediamine tetraacetic acid, and the concentration of the ligand in the mixed solution is 0.5-2.1g/L.
(2) Adding the silk fabric into the mixed solution in the step (1), and adsorbing for 0.5-1.5h at 40-80 ℃;
(3) And after the adsorption is finished, taking out the fabric, immersing the fabric in a metal salt solution, adsorbing for 1.0-3.0h at 40-80 ℃, taking out the fabric, washing for 3-5 times by removing ions, and naturally airing.
Wherein the metal salt is one of ferrous sulfate, ferrous chloride, ferric sulfate and ferric chloride, and the concentration of the metal salt solution is 0.15-0.25g/L.
According to the invention, gallic acid and metal ions are used for complexing and developing, and during the complexing process, different ligands are added to compete with gallic acid, so that the color of the textile is regulated and controlled. The invention can obtain multiple colors of pure black, purple black, earthy yellow, dark brown and the like.
The invention has the beneficial effects that:
the method adopts plant extraction gallic acid and metal salt as main components, and realizes the regulation and control of color by adding different ligands.
Drawings
FIG. 1 is a textile product obtained in example 1 of the present invention;
FIG. 2 is a textile product obtained in example 2 of the present invention;
FIG. 3 is a textile product obtained in example 3 of the present invention;
FIG. 4 is a textile product obtained in example 4 of the present invention;
FIG. 5 is a textile product obtained in example 5;
FIG. 6 is a textile product obtained in example 6;
FIG. 7 is a textile product obtained in example 7;
FIG. 8 is a textile product obtained in example 8;
FIG. 9 is a textile product obtained in comparative example 1;
Fig. 10 is a textile product obtained in comparative example 2.
Detailed Description
The present invention will be described in further detail with reference to specific examples. It should be understood that these examples are intended to illustrate the invention and are not intended to limit the scope of the invention in any way.
Example 1
Dissolving gallic acid and citric acid in deionized water to prepare 50mL of mixed solution of gallic acid with the concentration of 1.0g/L and citric acid with the concentration of 1.5g/L, adding silk fabric into the mixed solution, adsorbing the mixture at 40 ℃ for 1.5h, and taking out the fabric after the adsorption is finished; immersing in 0.15g/L ferric chloride solution, adsorbing at 40deg.C for 3.0h, taking out the fabric, deionized and washing for 3 times, naturally airing to obtain grey brown dyed fabric.
Example 2
Dissolving gallic acid and oxalic acid in deionized water to prepare 50mL of mixed solution of gallic acid with the concentration of 4.0g/L and oxalic acid with the concentration of 0.5g/L, adding real silk fabric into the mixed solution, adsorbing the mixture at 80 ℃ for 0.5h, and taking out the fabric after the adsorption is finished; immersing the fabric into 0.25g/L ferric sulfate solution, adsorbing for 1.0h at 80 ℃, taking out the fabric, deionizing and washing for 5 times, and naturally airing to obtain the dyed fabric which is earthy yellow.
Example 3
Dissolving gallic acid and ethylenediamine tetraacetic acid in deionized water to prepare 50mL of mixed solution of gallic acid with the concentration of 2.0g/L and ethylenediamine tetraacetic acid with the concentration of 1.0g/L, adding the silk fabric into the mixed solution, adsorbing the silk fabric at 60 ℃ for 1.0h, and taking out the fabric after the adsorption is finished; immersing in a ferrous chloride solution with the concentration of 0.2g/L, adsorbing for 2.0h at 60 ℃, taking out the fabric, deionizing and washing for 4 times, and naturally airing to obtain the dyed fabric with light gray color.
Example 4
Dissolving gallic acid and oxalic acid in deionized water to prepare 50mL of mixed solution of gallic acid with the concentration of 3.0g/L and oxalic acid with the concentration of 0.8g/L, adding real silk fabric into the mixed solution, adsorbing the mixture at 70 ℃ for 45min, and taking out the fabric after the adsorption is finished; immersing in ferrous sulfate solution with the concentration of 0.18g/L, adsorbing for 2.0h at 70 ℃, taking out the fabric, deionizing and washing for 5 times, and naturally airing to obtain the dyed fabric with purple-black color.
Example 5
Dissolving gallic acid and citric acid in deionized water to prepare 50mL of mixed solution of gallic acid with concentration of 1.0g/L and citric acid with concentration of 0.9g/L, adding silk fabric into the mixed solution, adsorbing at 40 ℃ for 1.5h, and taking out the fabric after the adsorption is finished; immersing in 0.15g/L ferric chloride solution, adsorbing at 40deg.C for 3.0h, taking out the fabric, deionized and washing for 3 times, naturally airing to obtain grey brown dyed fabric.
Example 6
Dissolving gallic acid and citric acid in deionized water to prepare 50mL of mixed solution of gallic acid with the concentration of 1.0g/L and citric acid with the concentration of 1.2g/L, adding silk fabric into the mixed solution, adsorbing the mixture at 40 ℃ for 1.5h, and taking out the fabric after the adsorption is finished; immersing in 0.15g/L ferric chloride solution, adsorbing at 40deg.C for 3.0h, taking out the fabric, deionized and washing for 3 times, naturally airing to obtain grey brown dyed fabric.
Example 7
Dissolving gallic acid and citric acid in deionized water to prepare 50mL of mixed solution of gallic acid with the concentration of 1.0g/L and citric acid with the concentration of 1.8g/L, adding silk fabric into the mixed solution, adsorbing the mixture at 40 ℃ for 1.5h, and taking out the fabric after the adsorption is finished; immersing in 0.15g/L ferric chloride solution, adsorbing at 40deg.C for 3.0h, taking out the fabric, deionized and washing for 3 times, and naturally airing to obtain the final product.
Example 8
Dissolving gallic acid and citric acid in deionized water to prepare 50mL of mixed solution of gallic acid with the concentration of 1.0g/L and citric acid with the concentration of 2.1g/L, adding silk fabric into the mixed solution, adsorbing the mixture at 40 ℃ for 1.5h, and taking out the fabric after the adsorption is finished; immersing the fabric into 0.15g/L ferric chloride solution, adsorbing for 3.0h at 40 ℃, taking out the fabric, deionized and washing for 3 times, and naturally airing to obtain the dyed fabric which is black gray.
Comparative example 1
Dissolving gallic acid in deionized water to prepare 50mL of gallic acid solution with the concentration of 1.0g/L, adding real silk fabric into the gallic acid solution, adsorbing for 1.5h at 40 ℃, and taking out the fabric after the adsorption is finished; immersing the fabric into 0.15g/L ferric chloride solution, adsorbing for 3.0h at 40 ℃, taking out the fabric, deionized and washing for 3 times, and naturally airing to obtain the black dyed fabric.
Comparative example 2
Dissolving gallic acid and glycine in deionized water to prepare 50mL of mixed solution of gallic acid with the concentration of 1.0g/L and glycine with the concentration of 1.5g/L, adding silk fabric into the mixed solution, adsorbing the mixture at 40 ℃ for 1.5h, and taking out the fabric after the adsorption is finished; immersing the fabric into 0.15g/L ferric chloride solution, adsorbing for 3.0h at 40 ℃, taking out the fabric, deionized and washing for 3 times, and naturally airing to obtain the black dyed fabric.
Example 9
Color parameter testing: the dyed fabric is folded in half three times, a datacolor test color matching instrument is used for measuring the L *,a*,b* value and the K/S value of the hair dyed fabric under the test condition of a 10-degree observation angle of a D65 light source, and each sample is tested for 4 times at different positions, and an average value is obtained.
Dyeing fastness test: the rubbing color fastness is measured according to the GB/T3920-2008 stipulated method; the wash fastness was determined according to the method specified in GB/T3921-2008. The test results were as follows:
table 1 color parameters and color fastness of dyed fabrics
As can be seen from Table 1, the dyed fabrics obtained according to the invention have excellent color fastness and very different colors.
Claims (2)
1. A method for regulating and controlling the color of a plant dye dyed fabric by using a ligand, which is characterized by comprising the following steps:
(1) Dissolving gallic acid and different ligands in deionized water to prepare a mixed solution with the concentration of gallic acid of 1.0-4.0 g/L;
the ligand is one of citric acid, oxalic acid and ethylenediamine tetraacetic acid;
the concentration of the ligand in the mixed solution is 0.5-2.1g/L;
(2) Adding the silk fabric into the mixed solution in the step (1), and adsorbing for 0.5-1.5h at 40-80 ℃;
(3) After the adsorption is finished, the fabric is taken out and immersed in a metal salt solution, after the adsorption is carried out for 1.0 to 3.0 hours at the temperature of 40 to 80 ℃, the fabric is taken out, deionized and washed for 3 to 5 times, and then naturally dried;
the metal salt is one of ferrous sulfate, ferrous chloride, ferric sulfate and ferric chloride.
2. The method for dyeing fabric using a ligand-regulated vegetable dye according to claim 1, wherein the concentration of the metal salt solution in step (3) is 0.15-0.25g/L.
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| CN202210175122.9A CN114541154B (en) | 2022-02-24 | 2022-02-24 | Method for regulating and controlling color of plant dye dyed fabric by using ligand |
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| DE102009024410A1 (en) * | 2009-06-09 | 2010-12-30 | Sartorius Stedim Biotech Gmbh | Process for obtaining secondary plant ingredients |
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