CN110804885A - Method for improving dye-uptake of flax blended fiber fabric - Google Patents
Method for improving dye-uptake of flax blended fiber fabric Download PDFInfo
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- 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
- D06P1/67391—Salts or oxidising-compounds mixtures
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- 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
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- 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
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
- D06P1/67358—Halides or oxyhalides
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- 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
- D06P1/67383—Inorganic compounds containing silicon
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- 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
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8219—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and amide groups
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- 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
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8266—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and nitrile groups
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- 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
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/828—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl groups
Abstract
The invention relates to the technical field of dyeing and environmental protection, and discloses a method for improving the dye-uptake of flax blended fiber fabric, which solves the problems of low dyeing efficiency, uneven dyeing and overhigh cost of the fabric processed by flax blended fiber in the prior art by researching the fiber structure and the dyeing principle, and comprises the steps of preparing a dyeing accelerant, pretreating the flax blended fiber fabric before dyeing, air-drying and washing, wherein the prepared dyeing accelerant has a nano-level titanium dioxide coated shell structure, can obviously improve the surface affinity of the flax fiber, can quickly permeate dye molecules into the fiber, promotes the diffusion and adsorption of the dye on the surface of the fiber fabric, is beneficial to dyeing, can improve the dye-uptake of the flax blended fiber fabric, has uniform color and luster of a dyed product and high firmness, and expands the application range of the flax fiber in the textile field, the process can well solve the defects in the existing flax blended fiber fabric dyeing process.
Description
Technical Field
The invention belongs to the technical field of dyeing and environmental protection, and particularly relates to a method for improving the dye-uptake of flax blend fiber fabric.
Background
The flax has high development and utilization value, and the fiber prepared from the flax stem is an important raw material in the textile industry, can be spun purely and can also be blended with other fibers. Flax fiber has many unique irreplaceable advantages compared with animal fiber, other plant fiber and synthetic fiber, which determines that the flax fiber plays an important role in national economy. Firstly, the flax fiber is tough and flexible, the strength of the flax fiber is 1.5 times that of the cotton fiber and 1.6 times that of the spun silk, the spinnable count is high, the fabric is smooth and tidy, and the flax fiber is suitable for making high-grade clothing. Secondly, the flax fiber has the unique advantages of strong hygroscopicity, fast heat dissipation, friction resistance, high temperature resistance, nonflammability, difficult cracking, small electrical conductivity, low dust absorption rate, bacteriostasis, health care and the like.
Because the linen fiber fabric has the advantages of easy wrinkle and poor stereoscopic impression, the linen blend fiber is generally adopted for spinning. However, the linen fiber has a low cellulose content, and due to the special fiber morphological structure, the dye molecules have a low dye uptake on the fabric, and the problems of poor level-dyeing property and insufficient color fastness to meet the requirements exist.
Disclosure of Invention
The invention aims to solve the existing problems, provides a method for improving the dye-uptake of flax blended fiber fabric, can improve the dye-uptake of the flax blended fiber fabric, has uniform color and luster of a dyed product and high firmness, and widens the application range of the flax fiber in the textile field.
The invention is realized by the following technical scheme:
a method for improving the dye-uptake of flax blended fiber fabric comprises the steps of preparing a dyeing accelerant, pretreating the flax blended fiber fabric before dyeing, air-drying and washing;
the preparation and use of the dyeing promoter remarkably improve the dye uptake of the fabric in the dye.
Specifically, the method comprises the following process steps:
the preparation method of the S1 dyeing promoter comprises the following steps: adding 50-60 ml of sodium hydroxide aqueous solution into a beaker, dropwise adding 14-17 g of saturated ferric chloride solution into the solution, heating to 70-80 ℃ under stirring, continuously stirring for 30-40 minutes, standing, cooling for 60-80 minutes, filtering, washing for 3-4 times by using deionized water and absolute ethyl alcohol respectively and sequentially, ultrasonically mixing the obtained product with titanium dioxide sol with the mass concentration of 27-30% at the mixing mass ratio of 1:1.3-1.5, dipping at 35-40 ℃ for 2-3 hours, transferring to a vacuum drying oven for drying for 4-5 hours, then sending into a tubular furnace preheated at 180 ℃ at 150-, under the protection of nitrogen, heating to 520 ℃ at the speed of 2.5-3.0 ℃/min, and carrying out heat preservation and calcination for 3-4 hours to obtain the microsphere with the magnetic titanium dioxide coating structure, namely the dyeing promoter; the dyeing promoter can play a role in accelerating activation during dyeing, has good affinity with the flax blended fiber fabric, and can quickly diffuse carried dye molecules into fibers through mutually communicated pore canals when the flax blended fiber fabric is contacted with the flax blended fiber fabric, and form the combination of hydrogen bonds and van der Waals force with the fiber molecules, so that the color depth and the gorgeous degree of the dyed fabric are increased, and the dyeing firmness is remarkably improved.
The molar concentration of the sodium hydroxide aqueous solution is 1.2-1.3 mol/L; the saturated ferric chloride solution is a saturated solution at the temperature of 25 ℃ under normal pressure; the flow rate of the nitrogen atmosphere in the tubular furnace is 60-80 cubic centimeters per minute, the particle size of the obtained dyeing promoter microsphere is between 330 and 350 nanometers, and the thickness of the coating shell layer is between 35 and 45 nanometers.
S2 pretreatment before dyeing of flax blend fiber fabric: placing the flax blended fiber fabric to be dyed in a sodium hypochlorite aqueous solution with the concentration of 13-15 g/L, adding sodium silicate into the solution, wherein the adding amount is that the concentration of the sodium silicate reaches 1.2-1.4 g/L, continuously stirring for 20-30 minutes, standing and soaking for 20-25 minutes, the material-liquid ratio is 1:40-45, the soaking temperature is 20-23 ℃, washing to be neutral after soaking, and drying in a blast drying box at 55-60 ℃ to dye.
The flax blended fiber fabric comprises the following components in parts by weight: 40-50 parts of flax fiber and 20-30 parts of other fibers; the other fibers comprise one or more of cotton fibers, nylon fibers and acrylic fibers.
S3 dyeing process: preparing a reactive dye solution with the concentration of 1.6 percent (owf), adjusting the pH value of the dye solution to be 8.2-8.5 by using a sodium hydroxide-sodium carbonate buffer solution, adding the prepared dyeing accelerant into the dye solution, wherein the adding amount of the dyeing accelerant is 0.06-0.07 percent of the mass of the dye solution, uniformly dispersing, then adding the pretreated flax blended fiber fabric, dyeing according to the bath ratio of 1:10-12, heating and dyeing under normal pressure, wherein the heating speed is 0.2-0.4 ℃/min, the dyeing temperature is 50-55 ℃, the dyeing time is 20-30 min, and cooling to 20-25 ℃ after dyeing is finished.
The pH value of the sodium hydroxide-sodium carbonate buffer solution is between 9.0 and 9.2.
S4 washing with water and air drying: after dyeing is finished, the flax blended fiber fabric is taken out and washed, soaped and dried by a conventional method, and the dyeing promoter particles are recovered, washed and dried for repeated use.
Wherein the air drying temperature of the flax blended fiber fabric is 55-60 ℃.
Compared with the prior art, the invention has the following advantages: in order to solve the problem of low dye-uptake of the flax blended fiber fabric, the invention provides a method for improving the dye-uptake of the flax blended fiber fabric, through the research on the fiber structure and the dyeing principle, the method not only solves the problems of low dyeing efficiency, uneven dyeing and overhigh cost of the fabric processed by the flax blended fiber in the prior art, and comprises the steps of preparing a dyeing accelerant, pretreating the flax blended fiber fabric before dyeing, dyeing process and air-drying and water-washing, wherein the prepared dyeing accelerant has a nano-level titanium dioxide coated shell structure, can obviously improve the surface affinity of the flax fiber, can quickly permeate dye molecules into the fiber, promotes the diffusion and adsorption of the dye on the surface of the fiber fabric, is beneficial to dyeing, reduces the temperature and time in the dyeing process, and can improve the dye-uptake of the flax blended fiber fabric, the dyeing product has uniform color and high firmness, enlarges the application range of the flax fiber in the textile field, can well solve the defects in the dyeing process of the conventional flax blended fiber fabric, does not add harmful substances or leave impurities in the dyeing process, improves the comprehensive utilization rate of the dye, reduces the cost, and improves the dye uptake of the dye on the flax blended fiber fabric, the invention effectively solves the problem of low dye uptake of the flax blended fiber fabric, has the characteristics of low cost, low energy consumption and quick color fixation, greatly reduces the steps of the dyeing processing process, has basically no resource waste in the process treatment process, completely accords with the national regulation of wastewater discharge, conforms to the development trend of green, environment-friendly and low carbon in the clothing industry, can realize the practical significance of improving the work efficiency and market competitiveness of the clothing dyeing processing industry, and has higher value for the research on the production process method of the flax fiber textile, the method obviously promotes the rapid development and the sustainable development of resources in the modern textile industry and the environmental protection industry, and is a technical scheme which is extremely worthy of popularization and use.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 shows the influence of different dyeing promoter amounts on the disperse dye uptake in the dyeing treatment of flax blended fiber fabrics.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described with reference to specific embodiments, and it should be understood that the specific embodiments described herein are only used for explaining the present invention and are not used for limiting the technical solutions provided by the present invention.
Example 1
A method for improving the dye-uptake of flax blended fiber fabric comprises the steps of preparing a dyeing accelerant, pretreating the flax blended fiber fabric before dyeing, air-drying and washing;
specifically, the method comprises the following process steps:
the preparation method of the dyeing promoter comprises the following steps: adding 50 ml of sodium hydroxide aqueous solution into a beaker, dropwise adding 14 g of saturated ferric chloride solution into the solution, heating to 70 ℃ under stirring, continuously stirring for 30 minutes, standing and cooling for 60 minutes, filtering, respectively and sequentially washing for 3 times by using deionized water and absolute ethyl alcohol, ultrasonically mixing the obtained product with titanium dioxide sol with the mass concentration of 27%, soaking for 2 hours at 35 ℃ with the mixing mass ratio of 1:1.3, transferring to a vacuum drying box for drying for 4 hours, then conveying to a tubular furnace preheated at 150 ℃, heating to 500 ℃ at the speed of 2.5 ℃/minute under the protection of nitrogen, and carrying out heat preservation and calcination for 3 hours to obtain the microsphere with the magnetic titanium dioxide coating structure, namely the dyeing promoter. The molar concentration of the sodium hydroxide aqueous solution is 1.2 mol/L; the saturated ferric chloride solution is a saturated solution at the temperature of 25 ℃ under normal pressure; the flow rate of the nitrogen atmosphere in the tube furnace is 60 cubic centimeters per minute, the particle size of the obtained dyeing promoter microsphere is between 330 and 350 nanometers, and the thickness of the coating shell layer is between 35 and 45 nanometers.
Pretreatment before dyeing of the flax blended fiber fabric: placing the flax blended fiber fabric to be dyed in a sodium hypochlorite aqueous solution with the concentration of 13 g/L, adding sodium silicate into the solution, wherein the adding amount is that the concentration of the sodium silicate reaches 1.2 g/L, continuously stirring for 20 minutes, standing and soaking for 20 minutes, wherein the material-liquid ratio is 1:40, the soaking temperature is 20 ℃, washing to be neutral after soaking, and drying in a 55 ℃ forced air drying box to dye. The flax blended fiber fabric comprises the following components in parts by weight: 40 parts of flax fiber and 20 parts of other fiber; the other fibers comprise one or more of cotton fibers, nylon fibers and acrylic fibers.
The dyeing process comprises the following steps: preparing a reactive dye solution with the concentration of 1.6 percent (owf), adjusting the pH value of the dye solution to be 8.2-8.5 by using a sodium hydroxide-sodium carbonate buffer solution, adding the prepared dyeing accelerant into the dye solution, wherein the adding amount of the dyeing accelerant is 0.06 percent of the mass of the dye solution, uniformly dispersing, then adding the pretreated flax blended fiber fabric, dyeing according to the bath ratio of 1:10, heating and dyeing under normal pressure, wherein the heating speed is 0.2 ℃/min, the dyeing temperature is 50 ℃, the dyeing time is 20 minutes, and cooling to 20 ℃ after the dyeing is finished. Wherein the pH value of the sodium hydroxide-sodium carbonate buffer solution is between 9.0 and 9.2.
Washing with water and air drying: after dyeing is finished, the flax blended fiber fabric is taken out and washed, soaped and dried by a conventional method, and the dyeing promoter particles are recovered, washed and dried for repeated use. Wherein the air drying temperature of the flax blended fiber fabric is 55 ℃.
Example 2
A method for improving the dye-uptake of flax blended fiber fabric comprises the steps of preparing a dyeing accelerant, pretreating the flax blended fiber fabric before dyeing, air-drying and washing;
specifically, the method comprises the following process steps:
the preparation method of the dyeing promoter comprises the following steps: adding 55 ml of sodium hydroxide aqueous solution into a beaker, dropwise adding 15 g of saturated ferric chloride solution into the solution, heating to 75 ℃ under stirring, continuously stirring for 35 minutes, standing and cooling for 70 minutes, filtering, washing for 3 times by using deionized water and absolute ethyl alcohol respectively, ultrasonically mixing the obtained product with titanium dioxide sol with the mass concentration of 28%, wherein the mixing mass ratio is 1:1.4, soaking for 2.5 hours at 38 ℃, transferring to a vacuum drying oven for drying for 4.5 hours, then transferring to a tubular furnace preheated at 165 ℃, heating to 510 ℃ at the speed of 2.8 ℃/minute under the protection of nitrogen, and carrying out heat preservation and calcination for 3.5 hours to obtain the microsphere with the magnetic titanium dioxide coating structure, namely the dyeing promoter. The molar concentration of the sodium hydroxide aqueous solution is 1.25 mol/L; the saturated ferric chloride solution is a saturated solution at the temperature of 25 ℃ under normal pressure; the flow rate of the nitrogen atmosphere in the tubular furnace is 70 cubic centimeters per minute, the particle size of the obtained dyeing promoter microsphere is between 330 and 350 nanometers, and the thickness of the coating shell layer is between 35 and 45 nanometers.
Pretreatment before dyeing of the flax blended fiber fabric: placing the flax blended fiber fabric to be dyed in a sodium hypochlorite aqueous solution with the concentration of 14 g/L, adding sodium silicate into the solution, wherein the adding amount is that the concentration of the sodium silicate reaches 1.3 g/L, continuously stirring for 25 minutes, standing and soaking for 23 minutes, wherein the material-liquid ratio is 1:42, the soaking temperature is 22 ℃, washing to be neutral after soaking, and drying in a 58 ℃ forced air drying oven for dyeing. The flax blended fiber fabric comprises the following components in parts by weight: 45 parts of flax fiber and 25 parts of other fiber; the other fibers comprise one or more of cotton fibers, nylon fibers and acrylic fibers.
The dyeing process comprises the following steps: preparing a reactive dye solution with the concentration of 1.6 percent (owf), adjusting the pH value of the dye solution to be 8.2-8.5 by using a sodium hydroxide-sodium carbonate buffer solution, adding the prepared dyeing accelerant into the dye solution, wherein the adding amount of the dyeing accelerant is 0.065 percent of the mass of the dye solution, uniformly dispersing, then adding the pretreated flax blended fiber fabric, dyeing according to the bath ratio of 1:11, heating and dyeing under normal pressure, wherein the heating speed is 0.3 ℃/min, the dyeing temperature is 52 ℃, the dyeing time is 25 minutes, and cooling to 22 ℃ after the dyeing is finished. Wherein the pH value of the sodium hydroxide-sodium carbonate buffer solution is between 9.0 and 9.2.
Washing with water and air drying: after dyeing is finished, the flax blended fiber fabric is taken out and washed, soaped and dried by a conventional method, and the dyeing promoter particles are recovered, washed and dried for repeated use. Wherein the air drying temperature of the flax blended fiber fabric is 58 ℃.
Example 3
A method for improving the dye-uptake of flax blended fiber fabric comprises the steps of preparing a dyeing accelerant, pretreating the flax blended fiber fabric before dyeing, air-drying and washing;
specifically, the method comprises the following process steps:
the preparation method of the dyeing promoter comprises the following steps: adding 60 ml of sodium hydroxide aqueous solution into a beaker, dropwise adding 17 g of saturated ferric chloride solution into the solution, heating to 80 ℃ under stirring, continuously stirring for 40 minutes, standing and cooling for 80 minutes, filtering, respectively and sequentially washing for 4 times by using deionized water and absolute ethyl alcohol, ultrasonically mixing the obtained product with titanium dioxide sol with the mass concentration of 30%, wherein the mixing mass ratio is 1:1.5, soaking for 2-3 hours at 40 ℃, transferring to a vacuum drying oven for drying for 5 hours, then transferring to a tubular furnace preheated at 180 ℃, heating to 520 ℃ at the speed of 3.0 ℃/minute under the protection of nitrogen, and carrying out heat preservation and calcination for 4 hours to obtain the magnetic titanium dioxide coated structure microspheres, namely the dyeing promoter. The molar concentration of the sodium hydroxide aqueous solution is 1.3 mol/L; the saturated ferric chloride solution is a saturated solution at the temperature of 25 ℃ under normal pressure; the flow rate of the nitrogen atmosphere in the tube furnace is 80 cubic centimeters per minute, the particle size of the obtained dyeing promoter microsphere is between 330 and 350 nanometers, and the thickness of the coating shell layer is between 35 and 45 nanometers.
Pretreatment before dyeing of the flax blended fiber fabric: placing the flax blended fiber fabric to be dyed in a sodium hypochlorite aqueous solution with the concentration of 15 g/L, adding sodium silicate into the solution, wherein the adding amount is that the concentration of the sodium silicate reaches 1.4 g/L, continuously stirring for 30 minutes, standing and soaking for 25 minutes, wherein the material-liquid ratio is 1:45, the soaking temperature is 23 ℃, washing to be neutral after soaking, and drying in a 60 ℃ forced air drying oven to dye. The flax blended fiber fabric comprises the following components in parts by weight: 50 parts of flax fiber and 30 parts of other fiber; the other fibers comprise one or more of cotton fibers, nylon fibers and acrylic fibers.
The dyeing process comprises the following steps: preparing a reactive dye solution with the concentration of 1.6 percent (owf), adjusting the pH value of the dye solution to be 8.2-8.5 by using a sodium hydroxide-sodium carbonate buffer solution, adding the prepared dyeing accelerant into the dye solution, wherein the adding amount of the dyeing accelerant is 0.07 percent of the mass of the dye solution, uniformly dispersing, then adding the pretreated flax blended fiber fabric, dyeing according to the bath ratio of 1:12, heating and dyeing under normal pressure, wherein the heating speed is 0.4 ℃/min, the dyeing temperature is 55 ℃, the dyeing time is 30 minutes, and cooling to 25 ℃ after the dyeing is finished. Wherein the pH value of the sodium hydroxide-sodium carbonate buffer solution is between 9.0 and 9.2.
Washing with water and air drying: after dyeing is finished, the flax blended fiber fabric is taken out and washed, soaped and dried by a conventional method, and the dyeing promoter particles are recovered, washed and dried for repeated use. Wherein the air drying temperature of the flax blended fiber fabric is 60 ℃.
Keeping the independent variables consistent, comparing the relationship of the influence of different dyeing accelerant dosage on the disperse dye-uptake in the flax blended fiber fabric dyeing treatment, and the result is shown in figure 1: the dyeing dye-uptake rate obtained by the dosage of the dyeing promoter related in the treatment method provided by the invention is optimal.
The invention effectively solves the problem of low dye-uptake of flax blended fiber fabric, has the characteristics of low cost, low energy consumption and quick color fixation, greatly reduces the steps of dyeing processing technology, basically has no resource waste in the process of processing, completely meets the national regulation of wastewater discharge, conforms to the development trend of green, environment-friendly and low carbon in the clothing industry, can realize the practical significance of improving the work efficiency of the clothing dyeing processing industry and the market competitiveness, has higher value for the research of flax fiber textile production technology, obviously promotes the quick development and the sustainable development of resources in the modern textile industry and the environment protection industry, and is a technical scheme which is extremely worthy of popularization and use.
Claims (6)
1. A method for improving the dye-uptake of flax blended fiber fabric is characterized in that the prepared dyeing promoter is added for dyeing during dyeing; the method comprises the following process steps:
(1) preparing a dyeing accelerant: adding 50-60 ml of sodium hydroxide aqueous solution into a beaker, dropwise adding 14-17 g of saturated ferric chloride solution into the solution, heating to 70-80 ℃ under stirring, continuously stirring for 30-40 minutes, standing, cooling for 60-80 minutes, filtering, washing for 3-4 times by using deionized water and absolute ethyl alcohol respectively and sequentially, ultrasonically mixing the obtained product with titanium dioxide sol with the mass concentration of 27-30% at the mixing mass ratio of 1:1.3-1.5, dipping at 35-40 ℃ for 2-3 hours, transferring to a vacuum drying oven for drying for 4-5 hours, then sending into a tubular furnace preheated at 180 ℃ at 150-, under the protection of nitrogen, heating to 520 ℃ at the speed of 2.5-3.0 ℃/min, and carrying out heat preservation and calcination for 3-4 hours to obtain the microsphere with the magnetic titanium dioxide coating structure, namely the dyeing promoter;
(2) pretreatment before dyeing of the flax blended fiber fabric: placing the flax blended fiber fabric to be dyed in a sodium hypochlorite aqueous solution with the concentration of 13-15 g/L, adding sodium silicate into the solution, wherein the adding amount of the sodium silicate is 1.2-1.4 g/L, continuously stirring for 20-30 minutes, standing and soaking for 20-25 minutes, the material-liquid ratio is 1:40-45, the soaking temperature is 20-23 ℃, washing to be neutral after soaking, and drying in a blast drying oven at 55-60 ℃ to dye;
(3) the dyeing process comprises the following steps: adding the prepared dyeing promoter into the active dye liquor, uniformly dispersing, then adding the pretreated flax blended fiber fabric, dyeing according to the bath ratio of 1:10-12, heating to dye at normal pressure at the heating speed of 0.2-0.4 ℃/min, the dyeing temperature of 50-55 ℃, the dyeing time of 20-30 minutes, cooling to 20-25 ℃ after dyeing is finished, taking out the flax blended fiber fabric, and washing, soaping and drying the flax blended fiber fabric by adopting a conventional method.
2. The method for improving the dye uptake of flax blend fiber fabric according to claim 1, wherein the molar concentration of the aqueous sodium hydroxide solution in step (1) is 1.2-1.3 mol/l.
3. The method for improving the dye uptake of flax blend fiber fabric according to claim 1 wherein the flow rate of the nitrogen atmosphere in the tube furnace of step (1) is 60 to 80 cc/min.
4. The method for improving the dye uptake of flax blended fiber fabric as claimed in claim 1, wherein the particle size of the dyeing promoter microsphere obtained in step (1) is 330-350 nm, and the thickness of the coating shell is 35-45 nm.
5. The method for improving the dye uptake of the flax blended fiber fabric according to claim 1, wherein the flax blended fiber fabric in the step (2) comprises the following components in parts by weight: 40-50 parts of flax fiber and 20-30 parts of other fibers; the other fibers comprise one or more of cotton fibers, nylon fibers and acrylic fibers.
6. The method for improving the dye-uptake of flax blended fiber fabric according to claim 1, wherein the dye-accelerating agent is added in the step (3) in an amount of 0.06-0.07% by mass of the dye liquor.
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Cited By (2)
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| CN113005580A (en) * | 2021-03-04 | 2021-06-22 | 东华大学 | Tencel/flax vortex spinning elastic core-spun yarn and preparation method thereof |
| CN113403837A (en) * | 2021-06-15 | 2021-09-17 | 盛虹集团有限公司 | Dyeing and finishing processing technology of recycled high-density nylon cool fabric |
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| CN113403837A (en) * | 2021-06-15 | 2021-09-17 | 盛虹集团有限公司 | Dyeing and finishing processing technology of recycled high-density nylon cool fabric |
| CN113403837B (en) * | 2021-06-15 | 2022-04-05 | 盛虹集团有限公司 | Dyeing and finishing processing technology of recycled high-density nylon cool fabric |
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