CN115012233B - Method for dyeing silk fabric by using active dye with heterogeneous hexadecane medium - Google Patents
Method for dyeing silk fabric by using active dye with heterogeneous hexadecane medium Download PDFInfo
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- 238000004043 dyeing Methods 0.000 title claims abstract description 95
- 239000004744 fabric Substances 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 51
- DCAYPVUWAIABOU-UHFFFAOYSA-N hexadecane Chemical compound CCCCCCCCCCCCCCCC DCAYPVUWAIABOU-UHFFFAOYSA-N 0.000 title claims abstract description 38
- BANXPJUEBPWEOT-UHFFFAOYSA-N 2-methyl-Pentadecane Chemical compound CCCCCCCCCCCCCC(C)C BANXPJUEBPWEOT-UHFFFAOYSA-N 0.000 claims abstract description 72
- 239000000985 reactive dye Substances 0.000 claims abstract description 54
- 229940043268 2,2,4,4,6,8,8-heptamethylnonane Drugs 0.000 claims abstract description 36
- KUVMKLCGXIYSNH-UHFFFAOYSA-N isopentadecane Natural products CCCCCCCCCCCCC(C)C KUVMKLCGXIYSNH-UHFFFAOYSA-N 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000000344 soap Substances 0.000 claims abstract description 15
- 239000003513 alkali Substances 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 7
- 238000005406 washing Methods 0.000 claims abstract description 7
- 239000000975 dye Substances 0.000 claims description 29
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 28
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 14
- 239000012452 mother liquor Substances 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 4
- 239000006210 lotion Substances 0.000 claims description 4
- 239000010413 mother solution Substances 0.000 claims description 4
- UIEBGVDTKLYGTN-UHFFFAOYSA-J tetrasodium;7-[[2-(carbamoylamino)-4-[[4-chloro-6-[3-(2-sulfonatooxyethylsulfonyl)anilino]-1,3,5-triazin-2-yl]amino]phenyl]diazenyl]naphthalene-1,3,6-trisulfonate Chemical compound [Na+].[Na+].[Na+].[Na+].C=1C=C(N=NC=2C(=CC3=CC(=CC(=C3C=2)S([O-])(=O)=O)S([O-])(=O)=O)S([O-])(=O)=O)C(NC(=O)N)=CC=1NC(N=1)=NC(Cl)=NC=1NC1=CC=CC(S(=O)(=O)CCOS([O-])(=O)=O)=C1 UIEBGVDTKLYGTN-UHFFFAOYSA-J 0.000 claims description 3
- INOIOAWTVPHTCJ-UHFFFAOYSA-N 6-acetamido-4-hydroxy-3-[[4-(2-sulfooxyethylsulfonyl)phenyl]diazenyl]naphthalene-2-sulfonic acid Chemical compound CC(=O)NC1=CC=C2C=C(C(N=NC3=CC=C(C=C3)S(=O)(=O)CCOS(O)(=O)=O)=C(O)C2=C1)S(O)(=O)=O INOIOAWTVPHTCJ-UHFFFAOYSA-N 0.000 claims description 2
- 238000009835 boiling Methods 0.000 claims description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 7
- 238000010186 staining Methods 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 5
- 239000003086 colorant Substances 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000000693 micelle Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 235000015598 salt intake Nutrition 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- SJEYSFABYSGQBG-UHFFFAOYSA-M Patent blue Chemical compound [Na+].C1=CC(N(CC)CC)=CC=C1C(C=1C(=CC(=CC=1)S([O-])(=O)=O)S([O-])(=O)=O)=C1C=CC(=[N+](CC)CC)C=C1 SJEYSFABYSGQBG-UHFFFAOYSA-M 0.000 description 1
- 239000000980 acid dye Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000001841 imino group Chemical group [H]N=* 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005935 nucleophilic addition reaction Methods 0.000 description 1
- 238000010534 nucleophilic substitution reaction Methods 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000004045 reactive dyeing Methods 0.000 description 1
- 230000001603 reducing effect Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
- D06P1/38—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 reactive dyes
-
- 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
- D06P1/90—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof
-
- 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
- D06P3/10—Material containing basic nitrogen containing amide groups using reactive dyes
-
- 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
- D06P1/90—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dyes dissolved in organic solvents or aqueous emulsions thereof
- D06P2001/901—Hydrocarbons
- D06P2001/905—Non-halogenated hydrocarbons
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
Abstract
The invention relates to a dyeing method of an isomeric hexadecane medium reactive dye for silk fabrics, which comprises the following steps: s1, pretreatment of silk fabric: padding silk fabric in alkali liquor, controlling the padding rate to be 70-90%, and realizing spare dyeing; s2, padding: preparing reactive dye liquor by taking isohexadecane as a medium, dip-dyeing silk fabric by controlling dyeing time, and placing the obtained dyed silk fabric on a padder for padding; s3, pre-baking: drying the dyed silk fabric in an oven at 40-90 ℃ for 5-60min; s4, baking: and baking and fixing the dried dyed silk fabric on a setting machine, preparing soap washing liquid for soap washing after fixing, and obtaining the dyed silk fabric. The dyeing method adopts the isohexadecane medium as a dyeing continuous phase medium to replace water to prepare reactive dye liquor, thereby realizing the remarkable reduction of dyeing wastewater.
Description
Technical Field
The invention relates to a dyeing method for silk fabric, in particular to a dyeing method for an isomerism hexadecane medium reactive dye for silk fabric, and belongs to the technical field of dyeing and finishing.
Background
For a long time, silk fabrics are mainly dyed with acid dyes, mordant-containing dyes and the like, and the dyes are generally poor in color fastness, especially poor in wet processing fastness. In recent years, in order to improve the soaping fastness of silk fabric dyeing, the silk fabric is dyed by using a reactive dye, and the dyeing process technology is increasingly favored by people. Because the active groups in the reactive dye can undergo nucleophilic substitution or nucleophilic addition reaction with amino groups, imino groups, phenolic hydroxyl groups and the like in silk fabric protein molecules and are combined by covalent bonds, the dyed silk fabric is endowed with excellent washing fastness. However, at present, the reactive dye is used for silk fabric dyeing liquid, and has the problems of low dye utilization rate, high dyeing promoting salt consumption, large sewage discharge and the like.
At present, the exploration of the salt-free water-saving environment-friendly dyeing technology of reactive dyes is mainly focused on the fields of supercritical carbon dioxide and reverse micelle dyeing. However, both methods have a great limitation in that natural fibers cannot be dyed efficiently in conventional supercritical fluids, and reverse micelle dyeing is low in practical application.
Conventional reactive dye dyeing is carried out in water, which has many advantages as a dyeing medium, such as dissolving dyes, swelling fibers, dissolving alkaline agents and additives such as salts. However, the water molecules have strong nucleophilicity, so that the reactive dye can be hydrolyzed, the color fixing efficiency and color fastness are reduced, the water consumption is high, the discharged sewage is high, and a plurality of serious ecological problems are brought. Therefore, if the dyeing water consumption can be reduced, the dye-uptake can be improved, and the amount of salt required can be reduced, the dyeing wastewater treatment burden can be greatly reduced. Therefore, the development of reactive dye water-less/water-free dyeing technology of silk fabric has important practical significance.
Disclosure of Invention
The invention aims to provide an isomerism hexadecane medium reactive dye dyeing method for silk fabrics, which adopts isomerism hexadecane medium as a dyeing continuous phase medium to replace water to prepare reactive dye liquor, thereby realizing the remarkable reduction of dyeing wastewater.
The technical scheme adopted for solving the technical problems is as follows:
a method for dyeing silk fabric with an isomeric hexadecane mediator reactive dye, the method comprising the steps of:
S1, pretreatment of silk fabric: padding silk fabric in alkali liquor, controlling the padding rate to be 70-90%, and realizing spare dyeing;
S2, padding: preparing reactive dye liquor by taking isohexadecane as a medium, dip-dyeing silk fabric by controlling dyeing time, and placing the obtained dyed silk fabric on a padder for padding;
The preparation method of the dye liquor comprises the following steps: dissolving reactive dye with a small amount of water to prepare a dye mother solution, wherein the concentration of the mother solution is m Reactive dyes ∶m Water and its preparation method =1:2-15, and adding isohexadecane to prepare a dye solution, and the concentration of the dye solution is m Mother liquor ∶m isomeric hexadecane =1:5-50;
S3, pre-baking: drying the dyed silk fabric in an oven at 40-90 ℃ for 5-60min;
s4, baking: and baking and fixing the dried dyed silk fabric on a setting machine, preparing soap washing liquid for soap washing after fixing, and obtaining the dyed silk fabric.
Compared with the traditional silk fabric reactive dyeing method, the dyeing method disclosed by the invention does not need any dyeing promoting salt, and the silk fabric can be quickly dyed by the reactive dye through the aid of the isohexadecane, and almost no hydrolysis occurs, so that the fixation rate of the reactive dye is greatly improved. The dyeing method not only effectively improves the utilization rate of the reactive dye for dyeing the silk fabric, but also does not need special treatment after dyeing the silk fabric.
In the invention, the purpose of the S1 padding alkali liquor is to realize the rapid dyeing of the reactive dye in the subsequent step. S2, preparing reactive dye liquor by using isohexadecane as a dyeing continuous phase medium. The invention can realize that silk fabric is put into the reactive dye liquor for dyeing at normal temperature. S3, pre-baking to prevent migration.
Preferably, in the preparation of the dye liquor, the concentration of the mother liquor is m Reactive dyes ∶m Water and its preparation method =1:10, and the concentration of the dye liquor is m Mother liquor ∶m isomeric hexadecane =1:20.
Preferably, the alkali liquor in S1 is one or more of sodium carbonate, sodium bicarbonate and sodium hydroxide solution, and the concentration range is 20-60g/L. The best choice is 40g/L sodium carbonate solution.
Preferably, the reactive dye is one or more of reactive red 3BS, reactive blue 194, reactive yellow 145 or reactive orange KN-GR.
Preferably, in S2, the dip dyeing temperature is 20-100 ℃, the time is 10-50min, and the rolling pressure is 0.2-0.8MPa. The most preferred choice is 0.4MPa.
Preferably, the baking temperature in the step S4 is 100-180 ℃ and the baking time is 1-10min. The optimal selection is 150 ℃ for 3min.
Preferably, the method of soaping in S4 is: preparing soap lotion with bath ratio of 1:50, adding baked silk fabric, and soap boiling at 65-80deg.C for 5-15min. The optimal selection is 80 ℃ for 15min.
Preferably, the composition of the soap lotion is: 3g/L standard soap chips and 3g/L sodium carbonate.
Preferably, in S2, the dip dyeing temperature is room temperature, the time is 10-50min, and the rolling pressure is 0.2-0.8MPa.
The method adopts the isohexadecane to replace the water medium to dye the silk fabric with the reactive dye. The dyeing method comprises the steps of firstly pretreating silk fabric in alkali liquor, preparing dye liquor by using isohexadecane as a medium, padding the silk fabric into the dye liquor to remove redundant dye liquor after dip dyeing, fixing color, and finally soaping. The silk fabric reactive dye dyeing method provided by the invention has the advantages that neutral salt is not needed in the dyeing process to promote dyeing, the dye-uptake is high, the fixation rate is high, the dyeing water is greatly reduced, the waste water discharge is reduced, and the method has important practical significance for the development of ecological dyeing and finishing.
Compared with the prior art, the invention has the beneficial effects that:
1. Because the reactive dye is soluble in water but insoluble in the isohexadecane, and the hydrophilic silk fabric has good affinity to both water and the reactive dye, the reactive dye which is suspended and dispersed in the isohexadecane bath or the reactive dye which is dissolved in water can be spontaneously and rapidly adsorbed on the fabric, so that high dye uptake is obtained, and no neutral salt is needed for dyeing promotion. The method effectively solves the problems of low dye-uptake of the reactive dye, large salt consumption, difficult wastewater treatment and the like;
2. the silk fabric is enabled to have a very small amount of water after alkali rolling, so that the hydrolysis of the dye can be inhibited to a great extent, the dye fixation rate is obviously improved and the utilization rate of the dye is greatly increased compared with the traditional water bath dyeing;
3. The isohexadecane is colorless odorless transparent oily liquid, has stable property, no toxic or harmful effect on human body, is safe and environment-friendly, and has low price;
4. compared with the traditional water bath dyeing, the dyeing method can achieve good dyeing effect under the condition of only needing a small amount of water, has obvious water-saving and wastewater discharge reducing effects, and accords with the development direction of ecological dyeing and finishing.
Drawings
FIG. 1 is a sample after staining of example 1;
FIG. 2 is a sample after staining of example 2;
FIG. 3 is a sample after staining of example 3;
FIG. 4 is a sample after staining of example 4;
FIG. 5 is a sample after dyeing of comparative example 1;
FIG. 6 is a sample of comparative example 2 after staining;
FIG. 7 is a sample of comparative example 3 after staining;
FIG. 8 is a sample of comparative example 4 after staining.
Detailed Description
The technical scheme of the invention is further specifically described by the following specific examples. It should be understood that the practice of the invention is not limited to the following examples, but is intended to be within the scope of the invention in any form and/or modification thereof.
In the present invention, unless otherwise specified, all parts and percentages are by weight, and the equipment, materials, etc. used are commercially available or are conventional in the art. The methods in the following examples are conventional in the art unless otherwise specified.
Example 1:
an isomerism hexadecane medium active red 3BS dyeing method for silk fabric comprises the following specific steps:
(1) Pretreatment of silk fabric: padding silk fabric in 40g/L sodium carbonate solution, and realizing preliminary dyeing by optimizing the padding liquid rate to be 75%;
(2) Padding: preparing reactive red 3BS dye liquor by taking isohexadecane as a medium, dip-dyeing silk fabric for 15min at room temperature, and placing the obtained dyed silk fabric on a 0.4MPa padder for padding;
(3) Pre-baking: placing the dyed silk fabric in a 70 ℃ oven for drying;
(4) Baking: and (3) placing the dried dyed silk fabric in a setting machine at 150 ℃ for baking and fixing colors for 3min, and preparing soaping liquid for soaping after the color fixing. The soap lotion comprises the following components: 3g/L standard soap chips and 3g/L sodium carbonate (hereinafter).
The dyeing formula and the conditions in the dyeing method are as follows:
Reactive dye mother liquor (m Reactive dyes ∶m Water and its preparation method =1:10);
Sodium carbonate concentration: 40g/L;
silk fabric weight: 1g;
Liquid rolling rate: 75%;
mass ratio of silk fabric to isohexadecane: 1:20;
mass ratio of reactive dye mother liquor to isohexadecane: 1:20.
TABLE 1 parameters relating to the isohexadecane used in example 1
The stained sample was red, see fig. 1.
Example 2:
An isomerism hexadecane medium active blue 194 dyeing method for silk fabric comprises the following specific steps:
(1) Pretreatment of silk fabric: padding silk fabric in 40g/L sodium carbonate solution, and realizing preliminary dyeing by optimizing the padding liquid rate to be 75%;
(2) Padding: preparing an active blue 194 dye solution by taking isohexadecane as a medium, dip-dyeing silk fabric for 30min at room temperature, and placing the obtained dyed silk fabric on a 0.4MPa padder for padding;
(3) Pre-baking: placing the dyed silk fabric in a 70 ℃ oven for drying;
(4) Baking: and (3) placing the dried dyed silk fabric in a setting machine at 150 ℃ for baking and fixing colors for 3min, and preparing soaping liquid for soaping after the color fixing.
The dyeing formula and the conditions in the dyeing method are as follows:
Reactive dye mother liquor (m Reactive dyes ∶m Water and its preparation method =1:10);
Sodium carbonate concentration: 40g/L;
silk fabric weight: 1g;
Liquid rolling rate: 75 percent,
Mass ratio of silk fabric to isohexadecane: the ratio of the components is 1:20,
Mass ratio of reactive dye mother liquor to isohexadecane: the ratio of the components is 1:20,
The isohexadecane species were the same as in example 1.
The stained sample was blue, see fig. 2.
Example 3:
a dyeing method of isohexadecane medium active yellow 145 for silk fabric comprises the following specific steps:
(1) Pretreatment of silk fabric: padding silk fabric in 40g/L sodium carbonate solution, and realizing preliminary dyeing by optimizing the padding liquid rate to be 75%;
(2) Padding: preparing reactive yellow 145 dye liquor by taking isohexadecane as a medium, dip-dyeing silk fabric for 15min at room temperature, and placing the obtained dyed silk fabric on a 0.4MPa padder for padding;
(3) Pre-baking: placing the dyed silk fabric in a 70 ℃ oven for drying;
(4) Baking: and (3) placing the dried dyed silk fabric in a setting machine at 150 ℃ for baking and fixing colors for 3min, and preparing soaping liquid for soaping after the color fixing.
The dyeing formula and the conditions in the dyeing method are as follows:
Reactive dye mother liquor (m Reactive dyes ∶m Water and its preparation method =1:5);
Sodium carbonate concentration: 40g/L;
silk fabric weight: 1g;
Liquid rolling rate: 75 percent,
Mass ratio of silk fabric to isohexadecane: the ratio of the components is 1:20,
Mass ratio of reactive dye mother liquor to isohexadecane: the ratio of the components is 1:20,
The isohexadecane species were the same as in example 1.
The stained sample was yellow, see fig. 3.
Example 4:
an isomerism hexadecane medium active orange KN-GR dyeing method for silk fabric comprises the following specific steps:
(1) Pretreatment of silk fabric: padding silk fabric in 40g/L sodium carbonate solution, and realizing preliminary dyeing by optimizing the padding liquid rate to be 75%;
(2) Padding: preparing active orange KN-GR dye liquor by taking isohexadecane as a medium, dip-dyeing silk fabric for 30min at room temperature, and placing the obtained dyed silk fabric on a 0.4MPa padder for padding;
(3) Pre-baking: placing the dyed silk fabric in a 70 ℃ oven for drying;
(4) Baking: and (3) placing the dried dyed silk fabric in a setting machine at 150 ℃ for baking and fixing colors for 3min, and preparing soaping liquid for soaping after the color fixing.
The dyeing formula and the conditions in the dyeing method are as follows:
Reactive dye mother liquor (m Reactive dyes ∶m Water and its preparation method =1:5);
Sodium carbonate concentration: 40g/L;
silk fabric weight: 1g;
Liquid rolling rate: 75 percent,
Mass ratio of silk fabric to isohexadecane: the ratio of the components is 1:20,
Mass ratio of reactive dye mother liquor to isohexadecane: 1:20.
The isohexadecane species were the same as in example 1.
The stained sample was orange, see fig. 4.
Comparative example 1:
Specific dyeing method and process conditions are the same as in example 1, and the dyeing medium is replaced by water by isohexadecane.
The stained sample was red, see fig. 5.
Comparative example 2
Specific dyeing method and process conditions are the same as in example 1, and the dyeing medium is replaced by water by isohexadecane.
The stained sample was blue, see fig. 6.
Comparative example 3
Specific dyeing method and process conditions are the same as in example 1, and the dyeing medium is replaced by water by isohexadecane.
The stained sample was yellow, see fig. 7.
Comparative example 4
Specific dyeing method and process conditions are the same as in example 1, and the dyeing medium is replaced by water by isohexadecane.
The stained sample was orange, see fig. 8.
Conclusion(s)
As can be seen from the figures, the dyed silk fabric using the isohexadecane as a medium can have better dye uptake and more uniform dyeing under the same dyeing method and process conditions, so that the isohexadecane as the medium is suitable for different dyes.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, so that the same or similar parts between the embodiments are referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.
The method for dyeing the silk fabric by using the heterogeneous hexadecane medium reactive dye is described in detail. The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present invention and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the invention can be made without departing from the principles of the invention and these modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Claims (5)
1. A method for dyeing silk fabric by using an isomeric hexadecane medium reactive dye, which is characterized by comprising the following steps:
S1, pretreatment of silk fabric: padding silk fabric in alkali liquor, controlling the padding rate to be 70-90%, and realizing spare dyeing;
S2, padding: preparing reactive dye liquor by taking isohexadecane as a medium, dip-dyeing silk fabric by controlling dyeing time, and placing the obtained dyed silk fabric on a padder for padding; the dip dyeing temperature is room temperature, the time is 10-50 min, and the rolling pressure is 0.2-0.8 MPa;
the preparation method of the dye liquor comprises the following steps: firstly, dissolving reactive dye with a small amount of water to prepare dye mother solution, wherein the concentration of the mother solution is m Reactive dyes ：m Water and its preparation method =1: (2-15), adding the isohexadecane to prepare a dye liquor, wherein the concentration of the dye liquor is m Mother liquor ：m isomeric hexadecane =1: (5-50);
s3, pre-baking: placing the dyed silk fabric in an oven at 40-90 ℃ for drying for 5-60 min hours;
S4, baking: baking the dried dyed silk fabric on a setting machine for fixation, wherein the baking temperature is 100-180 ℃ and the baking time is 1-10 min; after fixation, soap washing liquid is prepared for soap washing, and the dyed silk fabric is obtained.
2. The method for dyeing silk fabrics with heterogeneous hexadecane mediator reactive dye according to claim 1, characterized in that: the alkali liquor in S1 is one or more of sodium carbonate, sodium bicarbonate and sodium hydroxide solution, and the concentration range is 20-60 g/L.
3. The method for dyeing silk fabrics with heterogeneous hexadecane mediator reactive dye according to claim 1, characterized in that: the reactive dye is one or more of reactive red 3BS, reactive blue 194, reactive yellow 145 or reactive orange KN-GR.
4. The method for dyeing silk fabrics with heterogeneous hexadecane mediator reactive dye according to claim 1, characterized in that: the soaping method in S4 is as follows: the preparation bath ratio is 1:50, adding baked silk fabric, and soap boiling at 65-80deg.C for 5-15 min.
5. The method for dyeing silk fabric with heterogeneous hexadecane mediator reactive dye according to claim 4, characterized in that: the soap lotion comprises the following components: 3 g/L standard soap chips and 3 g/L sodium carbonate.
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