CN111719323A - Dyeing process of polyester blended fabric - Google Patents
Dyeing process of polyester blended fabric Download PDFInfo
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- CN111719323A CN111719323A CN201910220991.7A CN201910220991A CN111719323A CN 111719323 A CN111719323 A CN 111719323A CN 201910220991 A CN201910220991 A CN 201910220991A CN 111719323 A CN111719323 A CN 111719323A
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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
-
- 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
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
- D06L4/13—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using inorganic 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
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
- D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
- D06L4/23—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using hypohalogenites
-
- 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
- D06P1/0032—Determining dye recipes and dyeing parameters; Colour matching or monitoring
-
- 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
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
-
- 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
- D06P5/002—Locally enhancing dye affinity of a textile material by chemical means
-
- 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
- D06P5/10—After-treatment with compounds containing metal
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Coloring (AREA)
Abstract
The invention provides a dyeing process of a polyester blended fabric, which comprises the following steps: pretreatment of the fabric: putting the polyester blended fabric into cooking liquor, adding caustic soda solution into the cooking liquor, adding a mixture of a proper amount of sodium sulfite, sodium silicate and sodium phosphate into the cooking liquor, cooking, taking out the mixture, and bleaching the mixture in bleaching liquor; preparing a dye solution: adding clear water and dye into a dye vat, adding caustic soda, heating to 50-60 ℃, adding a dispersing agent, a surfactant and a leveling agent into the dye vat, and performing ultrasonic dispersion treatment; dyeing and washing and drying the fabric; according to the invention, impurities on the surface of the fabric subjected to pretreatment are effectively removed, so that the fabric is easier to color, and the color fastness after coloring is higher; in addition, dyeing is carried out in two different temperature sections of medium-temperature coloring and high-temperature color dipping in dye liquor, and then the temperature rising and falling speed is strictly controlled, so that the dyeing effect is better.
Description
Technical Field
The invention relates to the technical field of fabric dyeing treatment, in particular to a dyeing process of a polyester blended fabric.
Background
The terylene fabric is a very large chemical fiber garment fabric used in daily life, has higher strength and elasticity recovery capability, and is firm and durable, and crease-resistant and non-ironing. However, the polyester fabric has the defects of poor hygroscopicity, stuffy feeling when worn in summer, easy static electrification in winter and the like, so that the fabrics can basically meet the requirements of people.
The terylene blended fabric is a relatively popular cloth in recent years, is formed by blending the terylene fabric serving as a main body with fabrics made of various different materials, has the advantages of the terylene fabric and completely overcomes the defects of the terylene fabric. However, in the process of dyeing the polyester blended fabric, some problems exist, for example, the polyester fiber is a hydrophobic fiber with a compact structure, has no specific dyeing group in molecules, is lack of hydrophilicity, has low swelling degree in water, and brings certain difficulty to dyeing; the problems of difficult coloring, easy staining, easy damage, poor leveling property, low color fastness and the like exist in the process of dyeing and finishing the blended fabric, and the prior art can not effectively solve the problems. Therefore, the invention provides a dyeing process of the terylene blended fabric, which can solve the technical problems.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a dyeing process capable of effectively solving the problems of difficult coloring, easy staining, easy damage, poor level-dyeing property and low color fastness of a polyester blended fabric during dyeing.
(II) technical scheme
The invention is realized by the following technical scheme:
a dyeing process of a polyester blended fabric comprises the following steps:
1) pretreatment of the fabric: putting the polyester blended fabric into cooking liquor, adding caustic soda solution into the cooking liquor, heating the cooking liquor to 75-80 ℃, adding a mixture of a proper amount of sodium sulfite, sodium silicate and sodium phosphate into the cooking liquor, slowly heating to 95-100 ℃, cooking for 30-50 min, taking out the mixture after cooking, putting the mixture into bleaching liquor, bleaching for 45-60 min, and washing with water to obtain the polyester blended fabric to be dyed;
2) preparing a dye solution: adding clear water and dye in a proper proportion into a dye vat, adding caustic soda to adjust the pH value to 8-10, heating to 50-60 ℃, adding a dispersing agent, a surfactant and a leveling agent into the dye vat, and performing ultrasonic dispersion treatment;
3) dyeing the fabric: putting the polyester blended fabric into a dye solution subjected to ultrasonic dispersion treatment, slowly heating to 90-100 ℃, dip-dyeing for 10-15 min, slowly heating to 120-125 ℃, carrying out high-temperature dyeing for 40-50 min, and finally slowly cooling to 50 ℃ to discharge the dye solution to obtain a dyed fabric;
4) washing and drying the fabric: firstly, washing the dyed fabric with cold water for the first time, then washing the fabric with an alkaline washing solution at the temperature of 40-45 ℃ for the second time after washing with the cold water, and drying the washed fabric by blowing at the temperature of 120-130 ℃.
Preferably, the pH value of the cooking liquor after the caustic soda solution is added in the step 1 is 10-12.
Preferably, the weight of the mixture of sodium sulfite, sodium silicate and sodium phosphate in the step 1 is 0.4-0.6% of the weight of the cooking liquor, and the mass ratio of sodium sulfite, sodium silicate and sodium phosphate is 8: 5: 2.
Preferably, the bleaching agent in the bleaching solution in the step 1 is one of sodium hypochlorite, hydrogen peroxide and sodium chlorite.
Preferably, the ratio of the clear water to the dye in the step 2 is proportioned according to the chromaticity of the required dyeing.
Preferably, the surfactant in step 2 is one or more of amine salt and quaternary ammonium salt.
Preferably, the temperature rising and falling speed in the step 3 is 1-2 ℃/min.
Preferably, the washing temperature of the primary cold water washing in the step 4 is 20-22 ℃, and the washing time is 5-7 min.
Preferably, the alkaline water washing solution for the second washing in the step 4 is a sodium hydroxide solution with a concentration of 0.8-1.2%.
(III) advantageous effects
1. According to the invention, through the fabric pretreatment process, sodium sulfite added in the process of cooking the fabric enables the cooking liquor to easily wet the fabric and quickly permeate into the fabric, so that impurities are removed, lignin on the outer surface of the fabric is changed into sodium lignosulfonate, partial cottonseed hulls of the fabric are removed, and the fabric is prevented from being damaged by air oxidation in the high-temperature cooking process; simultaneously, the added sodium silicate has the capability of adsorbing and decomposing iron in the cooking liquid and impurities in the fibers, and effectively prevents impurities of the fabric from generating precipitates and attaching to the surface in the cooking process; in addition, the added sodium phosphate has the function of softening the cooking liquor, removes calcium and magnesium ions in the cooking liquor, improves the cooking effect and reduces the using amount of an auxiliary agent; impurities on the surface of the fabric subjected to pretreatment are effectively removed, so that coloring is easier, and the color fastness after coloring is higher;
2. the fabric is dyed in two different temperature sections of medium-temperature coloring and high-temperature color dipping in dye liquor, then the temperature rising and falling speed is strictly controlled, the coloring effect of dyeing is effectively improved, and the damage to the fabric during the high-temperature coloring period can be greatly reduced due to the strict control of the temperature;
3. according to the invention, through the primary cold water flushing and the secondary alkali liquor washing, not only is the residual dye liquor on the fabric removed, but also impurities in the residual dye liquor on the fabric can be effectively removed, so that the fabric has better surface coloring degree.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
a dyeing process of a polyester blended fabric comprises the following specific steps:
pretreatment of the fabric: putting the polyester blended fabric into cooking liquor, adding caustic soda solution into the cooking liquor, adjusting the pH value to 10, heating the cooking liquor to 75 ℃, adding a mixture of sodium sulfite, sodium silicate and sodium phosphate which is 0.5 percent of the weight of the cooking liquor into the cooking liquor, wherein the mass ratio of the sodium sulfite to the sodium silicate to the sodium phosphate is 8: 5: 2, slowly heating to 100 ℃, cooking for 40min, fishing up the fabric after cooking, bleaching the fabric in sodium hypochlorite bleaching liquor for 50min, and washing the fabric with water after bleaching to obtain the polyester blended fabric to be dyed;
preparing a dye solution: adding clear water and dye in a proper proportion into a dye vat, adding caustic soda to adjust the pH value to 8, heating to 55 ℃, adding a dispersing agent, a surfactant and a leveling agent into the dye vat, and performing ultrasonic dispersion treatment for 5 min;
dyeing the fabric: placing the polyester blended fabric into a dyeing solution subjected to ultrasonic dispersion treatment, slowly heating to 95 ℃ at a speed of 1 ℃/min, dip-dyeing for 13min, slowly heating to 125 ℃ at a speed of 1 ℃/min, carrying out high-temperature dyeing for 50min, and finally slowly cooling to 50 ℃ at a speed of 1 ℃/min, discharging the dyeing solution, so as to obtain a dyed fabric;
washing and drying the fabric: firstly, washing the dyed fabric with 20 ℃ water in cold water for the first time, then washing the fabric with 45 ℃ alkaline washing solution for the second time, wherein the alkaline washing solution is 1% sodium hydroxide solution, and drying the washed fabric by blowing at 120 ℃.
Example 2:
a dyeing process of a polyester blended fabric comprises the following specific steps:
pretreatment of the fabric: putting the polyester blended fabric into cooking liquor, adding caustic soda solution into the cooking liquor, adjusting the pH value to 10, heating the cooking liquor to 75 ℃, adding a mixture of sodium sulfite, sodium silicate and sodium phosphate which is 0.6 percent of the weight of the cooking liquor into the cooking liquor, wherein the mass ratio of the sodium sulfite to the sodium silicate to the sodium phosphate is 8: 5: 2, slowly heating to 95 ℃, cooking for 40min, fishing up the mixture after cooking, bleaching the mixture in sodium hypochlorite bleaching liquor for 50min, and washing with water after bleaching to obtain the polyester blended fabric to be dyed;
preparing a dye solution: adding clear water and dye in a proper proportion into a dye vat, adding caustic soda to adjust the pH value to 8, heating to 55 ℃, adding a dispersing agent, a surfactant and a leveling agent into the dye vat, and performing ultrasonic dispersion treatment for 5 min;
dyeing the fabric: placing the polyester blended fabric into a dyeing solution subjected to ultrasonic dispersion treatment, slowly heating to 95 ℃ at a speed of 1 ℃/min, dip-dyeing for 13min, slowly heating to 120 ℃ at a speed of 1 ℃/min, carrying out high-temperature dyeing for 50min, and finally slowly cooling to 50 ℃ at a speed of 1 ℃/min, discharging the dyeing solution, so as to obtain a dyed fabric;
washing and drying the fabric: firstly, washing the dyed fabric with 20 ℃ water in cold water for the first time, then washing the fabric with 45 ℃ alkaline washing solution for the second time, wherein the alkaline washing solution is 1% sodium hydroxide solution, and drying the washed fabric by blowing at 120 ℃.
Example 3:
a dyeing process of a polyester blended fabric comprises the following specific steps:
pretreatment of the fabric: putting the polyester blended fabric into cooking liquor, adding caustic soda solution into the cooking liquor, adjusting the pH value to 8, heating the cooking liquor to 75 ℃, adding a mixture of sodium sulfite, sodium silicate and sodium phosphate which is 0.5 percent of the weight of the cooking liquor into the cooking liquor, wherein the mass ratio of the sodium sulfite to the sodium silicate to the sodium phosphate is 8: 5: 2, slowly heating to 95 ℃, cooking for 40min, fishing up the mixture after cooking, bleaching the mixture in sodium hypochlorite bleaching liquor for 50min, and washing with water after bleaching to obtain the polyester blended fabric to be dyed;
preparing a dye solution: adding clear water and dye in a proper proportion into a dye vat, adding caustic soda to adjust the pH value to 10, heating to 55 ℃, adding a dispersing agent, a surfactant and a leveling agent into the dye vat, and performing ultrasonic dispersion treatment for 5 min;
dyeing the fabric: placing the polyester blended fabric into a dyeing solution subjected to ultrasonic dispersion treatment, slowly heating to 95 ℃ at a speed of 1 ℃/min, dip-dyeing for 13min, slowly heating to 125 ℃ at a speed of 1 ℃/min, carrying out high-temperature dyeing for 50min, and finally slowly cooling to 50 ℃ at a speed of 1 ℃/min, discharging the dyeing solution, so as to obtain a dyed fabric;
washing and drying the fabric: firstly, washing the dyed fabric with 20 ℃ water in cold water for the first time, then washing the fabric with 45 ℃ alkaline washing solution for the second time, wherein the alkaline washing solution is 0.8% sodium hydroxide solution, and drying the washed fabric by blowing at 120 ℃.
Example 4:
a dyeing process of a polyester blended fabric comprises the following specific steps:
pretreatment of the fabric: putting the polyester blended fabric into cooking liquor, adding caustic soda solution into the cooking liquor, adjusting the pH value to 10, heating the cooking liquor to 80 ℃, adding a mixture of sodium sulfite, sodium silicate and sodium phosphate which is 0.5 percent of the weight of the cooking liquor into the cooking liquor, wherein the mass ratio of the sodium sulfite to the sodium silicate to the sodium phosphate is 8: 5: 2, slowly heating to 98 ℃, cooking for 30min, fishing up the fabric after cooking, bleaching the fabric in sodium hypochlorite bleaching liquor for 45min, and washing the fabric with water after bleaching to obtain the polyester blended fabric to be dyed;
preparing a dye solution: adding clear water and dye in a proper proportion into a dye vat, adding caustic soda to adjust the pH value to 8, heating to 55 ℃, adding a dispersing agent, a surfactant and a leveling agent into the dye vat, and performing ultrasonic dispersion treatment for 5 min;
dyeing the fabric: placing the polyester blended fabric into a dyeing solution subjected to ultrasonic dispersion treatment, slowly heating to 95 ℃ at a speed of 1 ℃/min, dip-dyeing for 12min, slowly heating to 125 ℃ at a speed of 1 ℃/min, carrying out high-temperature dyeing for 45min, and finally slowly cooling to 50 ℃ at a speed of 1 ℃/min, discharging the dyeing solution, so as to obtain a dyed fabric;
washing and drying the fabric: firstly, washing the dyed fabric with 20 ℃ water in cold water for the first time, then washing the fabric with 45 ℃ alkaline washing solution for the second time, wherein the alkaline washing solution is 1% sodium hydroxide solution, and drying the washed fabric by blowing at 120 ℃.
Example 5:
a dyeing process of a polyester blended fabric comprises the following specific steps:
pretreatment of the fabric: putting the polyester blended fabric into cooking liquor, adding caustic soda solution into the cooking liquor, adjusting the pH value to 10, heating the cooking liquor to 80 ℃, adding a mixture of sodium sulfite, sodium silicate and sodium phosphate which is 0.5 percent of the weight of the cooking liquor into the cooking liquor, wherein the mass ratio of the sodium sulfite to the sodium silicate to the sodium phosphate is 8: 5: 2, slowly heating to 100 ℃, cooking for 40min, fishing up the fabric after cooking, bleaching the fabric in sodium hypochlorite bleaching liquor for 50min, and washing the fabric with water after bleaching to obtain the polyester blended fabric to be dyed;
preparing a dye solution: adding clear water and dye in a proper proportion into a dye vat, adding caustic soda to adjust the pH to 9, heating to 55 ℃, adding a dispersing agent, a surfactant and a leveling agent into the dye vat, and performing ultrasonic dispersion treatment for 5 min;
dyeing the fabric: placing the polyester blended fabric into a dyeing solution subjected to ultrasonic dispersion treatment, slowly heating to 95 ℃ at a speed of 1.5 ℃/min, dip-dyeing for 10min, slowly heating to 125 ℃ at a speed of 1.5 ℃/min, carrying out high-temperature dyeing for 40min, and finally slowly cooling to 50 ℃ at a speed of 1.5 ℃/min, and discharging the dyeing solution to obtain a dyed fabric;
washing and drying the fabric: firstly, washing the dyed fabric with 20 ℃ water in cold water for the first time, then washing the fabric with 45 ℃ alkaline washing solution for the second time, wherein the alkaline washing solution is 1% sodium hydroxide solution, and drying the washed fabric by blowing at 120 ℃.
Carrying out detection on the color fastness to washing, the dye uptake and the color intensity to rubbing of the polyester blended fabrics prepared in the embodiments 1 to 5 and common polyester blended fabrics purchased in the market;
wherein, the color fastness to washing is detected according to the steps of GB/T3921.3-1997 color fastness to washing experiment 3 of textile color fastness experiment; the dye-uptake is detected according to the steps of GB/T3933.6-1997 textile dye-uptake; the detection of the friction-resistant chromaticity is carried out according to the steps of GB/T3920-1997 color fastness to rubbing in the textile color fastness test.
The data obtained are shown in table 1 below:
TABLE 1
| Sample \ detection index | Color fastness to washing | Rub fastness color | Dye uptake (%) |
| Comparative group 1 | 3 | 2 | \ |
| Example 1 | 6 | 6 | 92.3 |
| Example 2 | 5 | 4 | 90.6 |
| Example 3 | 5 | 5 | 91.5 |
| Example 4 | 5 | 4 | 89.8 |
| Example 5 | 6 | 5 | 90.7 |
The above examples are only used to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The dyeing process of the polyester blended fabric is characterized by comprising the following steps of:
1) pretreatment of the fabric: putting the polyester blended fabric into cooking liquor, adding caustic soda solution into the cooking liquor, heating the cooking liquor to 75-80 ℃, adding a mixture of a proper amount of sodium sulfite, sodium silicate and sodium phosphate into the cooking liquor, slowly heating to 95-100 ℃, cooking for 30-50 min, taking out the mixture after cooking, putting the mixture into bleaching liquor, bleaching for 45-60 min, and washing with water to obtain the polyester blended fabric to be dyed;
2) preparing a dye solution: adding clear water and dye in a proper proportion into a dye vat, adding caustic soda to adjust the pH value to 8-10, heating to 50-60 ℃, adding a dispersing agent, a surfactant and a leveling agent into the dye vat, and performing ultrasonic dispersion treatment;
3) dyeing the fabric: putting the polyester blended fabric into a dye solution subjected to ultrasonic dispersion treatment, slowly heating to 90-100 ℃, dip-dyeing for 10-15 min, slowly heating to 120-125 ℃, carrying out high-temperature dyeing for 40-50 min, and finally slowly cooling to 50 ℃ to discharge the dye solution to obtain a dyed fabric;
4) washing and drying the fabric: firstly, washing the dyed fabric with cold water for the first time, then washing the fabric with an alkaline washing solution at the temperature of 40-45 ℃ for the second time after washing with the cold water, and drying the washed fabric by blowing at the temperature of 120-130 ℃.
2. The dyeing process of the polyester blended yarn fabric according to claim 1, wherein the pH value of the cooking solution after the caustic soda solution is added in the step 1 is 10-12.
3. The dyeing process of the polyester blended fabric according to claim 1, wherein the weight of the mixture of sodium sulfite, sodium silicate and sodium phosphate in the step 1 is 0.4-0.6% of the weight of the cooking liquor, and the mass ratio of the sodium sulfite, the sodium silicate and the sodium phosphate is 8: 5: 2.
4. The dyeing process of the polyester blended yarn fabric according to claim 1, wherein the bleaching agent in the bleaching solution in the step 1 is one of sodium hypochlorite, hydrogen peroxide and sodium chlorite.
5. The dyeing process of the polyester blended yarn fabric as claimed in claim 1, wherein the ratio of the clear water to the dye in the step 2 is proportioned according to the chromaticity of the required dyeing.
6. The dyeing process of the polyester blended fabric according to claim 1, characterized in that the surfactant in the step 2 is one or more of amine salt and quaternary ammonium salt.
7. The dyeing process of the polyester blended yarn weaved fabric according to claim 1, wherein the temperature rise and fall speed in step 3 is 1-2 ℃/min.
8. The dyeing process of the polyester blended yarn fabric according to claim 1, wherein the washing temperature of the primary cold water washing in the step 4 is 20-22 ℃, and the washing time is 5-7 min.
9. The dyeing process of the polyester blended yarn fabric according to claim 1, wherein the alkaline water washing solution for the secondary washing in the step 4 is a sodium hydroxide solution with a concentration of 0.8-1.2%.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113062118A (en) * | 2021-03-25 | 2021-07-02 | 东台市金嘉纺织有限公司 | Crease-resistant dyeing and finishing treatment process for polyester fabric |
| CN113502666A (en) * | 2021-06-18 | 2021-10-15 | 吴江瑞嘉纺织有限公司 | High-color-fastness dyeing and finishing process for regenerated polyester fabric |
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