CN109487579B - Short-process printing and dyeing method for superfine denier polyester fiber - Google Patents
Short-process printing and dyeing method for superfine denier polyester fiber Download PDFInfo
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- CN109487579B CN109487579B CN201811373634.6A CN201811373634A CN109487579B CN 109487579 B CN109487579 B CN 109487579B CN 201811373634 A CN201811373634 A CN 201811373634A CN 109487579 B CN109487579 B CN 109487579B
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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
- D06P1/16—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 dispersed, e.g. acetate, dyestuffs
- D06P1/18—Azo 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
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/651—Compounds without nitrogen
- D06P1/65106—Oxygen-containing compounds
- D06P1/65118—Compounds containing hydroxyl 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
- 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
- D06P1/655—Compounds containing ammonium groups
- D06P1/66—Compounds containing ammonium groups containing quaternary ammonium 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
- 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
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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
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
- D06P3/54—Polyesters using dispersed dyestuffs
Abstract
The invention discloses a short-process printing and dyeing method of superfine denier polyester fibers, which comprises the following steps: putting the superfine denier polyester fiber into an alkaline dye bath at room temperature; heating to a target temperature, and keeping the temperature for a certain time; cooling, washing with water, and reduction cleaning; and washing with water again and finally drying. According to the invention, by selecting the specific alkali-resistant dye and the quaternary ammonium salt accelerator and combining the optimization of the dyeing process parameters of the superfine denier polyester, the dyeing process of the superfine denier polyester fiber in one bath through fiber opening and alkali dyeing is realized, the dyeing process of the superfine denier polyester fiber is greatly shortened, and the dyeing rate of the yellow disperse dye applied to the superfine denier polyester fiber is improved; and meanwhile, the rubbing fastness and the washing fastness of the fabric are improved.
Description
Technical Field
The invention belongs to the technical field of printing and dyeing, and particularly relates to a short-process printing and dyeing method for superfine denier polyester fibers.
Background
At present, the synthetic fiber occupies the mainstream of high-grade fabrics, and the polyester fiber occupies two thirds of the synthetic fiber. The dye used for printing and dyeing the polyester fiber is a disperse dye. In general, printing and dyeing of polyester fibers are performed under high-temperature and high-pressure conditions, and most of dye baths are weakly acidic. Most disperse dyes contain hydroxyl, ester, ether, cyano, amide and other groups in the molecular structure, and the groups are easy to hydrolyze under high-temperature alkaline conditions, so that the dyeing performances of the dyes, such as color light, color fastness and the like, are poor, and the reproducibility is poor. In addition, high temperature and high pressure conditions place high demands on equipment safety while consuming large amounts of steam and time. The problems are more prominent along with the increasing of the fineness of the polyester fiber, especially the continuous popularization and application of the superfine denier polyester fiber.
On the other hand, the pretreatment process (including steps of desizing, refining and/or opening) and the post-treatment process (including steps of soaping and/or reduction cleaning) of polyester fiber printing and dyeing are performed under alkaline conditions, and only the dyeing process is performed in a weakly acidic dye bath. If the pretreatment process of the polyester fiber is improper, the fluctuation of the acid-base condition of the dye bath is large, and the dye bath is difficult to control accurately, so that the dyeing color light is unstable, and the repeatability is poor. In order to solve this problem, dyeing processes for fiber opening and dyeing have been gradually developed, which can reduce the number of times of washing polyester fibers and improve the production efficiency.
However, the dyeing process, which is carried out in one bath for opening and dyeing, requires that it be carried out under strongly alkaline conditions. This requires that the disperse dyes be stable under strongly alkaline conditions and have excellent dyeing properties. Chinese patent application CN201310714025 discloses a disperse dye with excellent alkali resistance and hydrogen peroxide resistance stability. However, the process applicability of the disperse dye is not strong, and the disperse dye can only be applied to a scouring dyeing one-bath process or a bleaching dyeing one-bath process, and a disperse active same-size printing process. Meanwhile, the dye uptake of the disperse dyes on the superfine denier polyester fiber is not high and is only 60-70%; furthermore, the crockfastness and the fastness to washing are not satisfactory.
In addition, the yellow disperse dye is one of three primary colors in disperse dye printing and dyeing application, and is also a vital product in the development of alkali-resistant series disperse dyes. Although some yellow disperse dye monomers with good alkali resistance have been developed, the dye monomers still cannot meet the practical requirements when applied to printing and dyeing of superfine polyester fibers.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention provides a short-process printing and dyeing method for superfine denier polyester fiber.
In order to solve the problems, the invention adopts the following technical scheme: a short-process printing and dyeing method of superfine denier polyester fibers comprises the following steps: putting the superfine denier polyester fiber into an alkaline dye bath at room temperature; heating to a target temperature, and keeping the temperature for a certain time; cooling, washing with water, and reduction cleaning; and washing with water again and finally drying.
In the present invention, room temperature means 10 to 30 ℃; preferably, room temperature means 15-30 ℃; more preferably, room temperature means 20-30 ℃; and, most preferably, room temperature means 25-30 ℃. Further, the super fine denier means a fiber having a filament linear density of 0.55dtex or less.
In a specific embodiment, room temperature represents 28 ℃.
According to the short-process printing and dyeing method, the formula of the alkaline dye bath is as follows:
2-8g/L of sodium hydroxide;
benzyl alcohol 12-22 g/L;
2-6o.w.f% of disperse yellow dye;
0.5-2g/L of dispersant MF;
0.02-0.15g/L of quaternary ammonium salt accelerator;
wherein the disperse yellow dye is selected from the combination of disperse yellow dye monomers A and B in a weight ratio of (30-70) to (70-30), calculated based on the total weight of the disperse yellow dye,
the molecular formula of the quaternary ammonium salt accelerant is as follows:
according to the short-process printing and dyeing method, the formula of the alkaline dye bath is as follows:
2-6g/L of sodium hydroxide;
benzyl alcohol 12-18 g/L;
2-5 o.w.f% of disperse yellow dye;
0.5-1.6g/L of dispersant MF;
0.02-0.12g/L of quaternary ammonium salt accelerator.
According to the short-process printing and dyeing method, the formula of the alkaline dye bath is as follows:
2-4g/L of sodium hydroxide;
benzyl alcohol 12-16 g/L;
2-4 o.w.f% of disperse yellow dye;
0.5-1.2g/L of dispersant MF;
0.02-0.10g/L of quaternary ammonium salt accelerator.
In one embodiment, the alkaline dye bath has the following formulation:
3g/L of sodium hydroxide;
15g/L of benzyl alcohol;
disperse yellow dye 3 o.w.f%;
1g/L of dispersant MF;
0.08g/L of quaternary ammonium salt accelerator.
In the present invention, the yellow alkaline dye bath composition is present in the form of an aqueous solution.
In the present invention, the disperse yellow dye monomer and the quaternary ammonium salt accelerator are derived from known products on the market, and can also be prepared according to known methods.
Preferably, the weight ratio of the disperse yellow dye monomers A and B is (35-65) to (65-35); more preferably, the weight ratio of the disperse yellow dye monomers A and B is (40-60) to (60-40); and, most preferably, the weight ratio of the disperse yellow dye monomers A and B is (45-55): (55-45).
In a specific embodiment, the weight ratio of the disperse yellow dye monomers a and B is 50: 50.
According to the short-process printing and dyeing method, the bath ratio of the superfine denier polyester fiber to the alkaline dye bath is 1: 10-30.
Preferably, the bath ratio of the superfine denier polyester fiber to the alkaline dye bath is 1: 12-28; more preferably, the bath ratio of the superfine denier polyester fiber to the alkaline dye bath is 1: 15-25; and, most preferably, the bath ratio of the ultra-fine polyester fiber to the alkaline dyebath is 1: 18-22.
In a specific embodiment, the bath ratio of the ultra fine denier polyester fiber to the alkaline dye bath is 1: 20.
According to the short-flow printing and dyeing method, the target temperature is 100-110 ℃.
Preferably, the target temperature is 102-108 ℃; more preferably, the target temperature is 103-107 ℃; and, more preferably, the target temperature is 104-.
In a specific embodiment, the target temperature is 105 ℃.
According to the short-process printing and dyeing method, the temperature rise process is performed first and then slowly. Advantageously, the warming process is divided into two phases: in the first stage, the temperature is between room temperature and 80 ℃, and the heating rate is 1.5-3 ℃/min; in the second stage, the temperature is 80 ℃ to the target temperature, and the heating rate is 0.5-1.5 ℃/min. Preferably, in the first stage, the temperature is between room temperature and 80 ℃, and the heating rate is 2-3 ℃/min; in the second stage, the temperature is 80 ℃ to the target temperature, and the heating rate is 0.5-1 ℃/min.
In a specific embodiment, in the first stage, the temperature is between room temperature and 80 ℃, and the heating rate is 2.5 ℃/min; in the second stage, the temperature is between 80 ℃ and the target temperature, and the heating rate is 1 ℃/min.
According to the short-process printing and dyeing method, the heat preservation time is 40-80 min.
Preferably, the heat preservation time is 40-70 min; more preferably, the heat preservation time is 40-60 min; and, most preferably, the incubation time is 40-60 min.
In a specific embodiment, the incubation time is 50 min.
According to the short-process printing and dyeing method, the cooling and washing steps are as follows: cooling to 80-90 deg.C, washing with water for 2-5 times, each for 5-20 min. Preferably, the cooling and water washing step is as follows: cooling to 80-85 deg.C, washing with water for 2-4 times, each for 5-15 min.
In a specific embodiment, the cooling and water washing step is: cooling to 80 deg.C, washing with water for 2 times, each time for 10 min.
According to the short-process printing and dyeing method, the reduction cleaning step comprises the following steps: 2-4g/L of sodium hydroxide, 2-4g/L of sodium hydrosulfite, 60-80 ℃ and a bath ratio of 1:40-60 for 10-40 min. Preferably, the reduction cleaning step is: 2-3.5g/L of sodium hydroxide, 2-3.5g/L of sodium hydrosulfite, 60-75 ℃ of temperature, 1:40-55 of bath ratio and 10-30min of time; more preferably, the reduction washing step is: 2-3g/L of sodium hydroxide and 2-3g/L of sodium hydrosulfite, wherein the temperature is 60-70 ℃, the bath ratio is 1:40-50, and the time is 10-25 min; and, most preferably, the reductive cleaning step is: 2-2.5g/L of sodium hydroxide, 2-2.5g/L of sodium hydrosulfite, 60-65 ℃ of temperature, 1:40-45 of bath ratio and 10-20min of time.
In one specific embodiment, the reduction cleaning step is: 2.5g/L of sodium hydroxide, 2.5g/L of sodium hydrosulfite, 65 ℃ of temperature, 1:45 of bath ratio and 20min of time.
According to the short-process printing and dyeing method, the re-washing step comprises the following steps: washing with water for 5-20min for 3-10 times. Preferably, the step of washing with water again is: washing with water for 5-15min for 4-8 times.
In a specific embodiment, the second water washing step is: washing with water for 10min for 5 times.
The inventor finds that the dyeing process of the superfine denier polyester fiber in one bath through fiber opening and alkaline dyeing is realized by selecting the specific alkali-resistant dye and the quaternary ammonium salt accelerator and combining optimization of dyeing process parameters of the superfine denier polyester, the dyeing process of the superfine denier polyester fiber is greatly shortened, and the dyeing rate of the yellow disperse dye applied to the superfine denier polyester fiber is improved; and meanwhile, the rubbing fastness and the washing fastness of the fabric are improved.
Detailed Description
The invention will be further illustrated with reference to specific embodiments. It should be understood that these embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the contents of the present invention, and those equivalents may fall within the scope of the present invention defined by the appended claims.
Example 1
Putting the 240T Chunyan super fine denier polyester fiber fabric into an alkaline dye bath at room temperature of 25 ℃; the temperature is raised to 105 ℃, the temperature raising process is fast and slow firstly, and the temperature raising process is divided into two stages: in the first stage, the temperature is between room temperature and 80 ℃, and the heating rate is 2.5 ℃/min; in the second stage, the temperature is 80 ℃ to the target temperature, and the heating rate is 1 ℃/min; then the incubation was carried out for 50min at the target temperature. Then the temperature is reduced to 80 ℃, and the mixture is washed for 2 times, 10min each time. Then carrying out reduction cleaning under the following conditions: 2.5g/L of sodium hydroxide, 2.5g/L of sodium hydrosulfite, 65 ℃ of temperature, 1:45 of bath ratio and 20min of time. Then washing with water for 5 times, each time for 10 min; and finally drying. Wherein the formula of the alkaline dye bath is as follows:
3g/L of sodium hydroxide;
15g/L of benzyl alcohol;
disperse yellow dye 3 o.w.f%;
1g/L of dispersant MF;
0.08g/L of quaternary ammonium salt accelerator.
Wherein the disperse yellow dye is selected from the combination of disperse yellow dye monomers A and B with the weight ratio of 50:50,
the molecular formula of the quaternary ammonium salt accelerant is as follows:
example 2
Putting the 240T Chunyan super fine denier polyester fiber fabric into an alkaline dye bath at room temperature of 25 ℃; the temperature is raised to 106 ℃, the temperature raising process is fast and slow firstly, and the temperature raising process is divided into two stages: in the first stage, the temperature is between room temperature and 80 ℃, and the heating rate is 2 ℃/min; in the second stage, the temperature is 80 ℃ to the target temperature, and the heating rate is 0.5 ℃/min; then the temperature was maintained at the target temperature for 60 min. Then the temperature is reduced to 80 ℃, and the mixture is washed for 4 times, 10min each time. Then carrying out reduction cleaning under the following conditions: 3g/L of sodium hydroxide, 3g/L of sodium hydrosulfite, 65 ℃ of temperature, 1:45 of bath ratio and 20min of time. Then washing with water for 8 times, each time for 10 min; and finally drying. Wherein the formula of the alkaline dye bath is as follows:
4g/L of sodium hydroxide;
benzyl alcohol 12 g/L;
disperse yellow dye 4 o.w.f%;
dispersant MF 1.2 g/L;
0.10g/L of quaternary ammonium salt accelerator.
Wherein the disperse yellow dye is selected from the combination of disperse yellow dye monomers A and B with the weight ratio of 60:40,
the molecular formula of the quaternary ammonium salt accelerant is as follows:
example 3
Putting the 240T Chunyan super fine denier polyester fiber fabric into an alkaline dye bath at room temperature of 25 ℃; the temperature is raised to 104 ℃, the temperature raising process is fast first and then slow, and the temperature raising process is divided into two stages: in the first stage, the temperature is between room temperature and 80 ℃, and the heating rate is 3 ℃/min; in the second stage, the temperature is 80 ℃ to the target temperature, and the heating rate is 1 ℃/min; then the incubation was carried out for 40min at the target temperature. Then the temperature is reduced to 80 ℃, and the mixture is washed for 2 times, 10min each time. Then carrying out reduction cleaning under the following conditions: 2g/L of sodium hydroxide, 2g/L of sodium hydrosulfite, 60 ℃ of temperature, 1:40 of bath ratio and 20min of time. Then washing with water for 6 times, each time for 10 min; and finally drying. Wherein the formula of the alkaline dye bath is as follows:
2g/L of sodium hydroxide;
benzyl alcohol 12 g/L;
disperse yellow dye 2 o.w.f%;
0.5g/L of dispersant MF;
0.02g/L of quaternary ammonium salt accelerator.
Wherein the disperse yellow dye is selected from the combination of disperse yellow dye monomers A and B with the weight ratio of 40:60,
the molecular formula of the quaternary ammonium salt accelerant is as follows:
comparative example 1
The quaternary ammonium salt accelerator was replaced with an equal amount of accelerator 1227 as in example 1.
Comparative example 2
The disperse yellow dye was replaced with an equal amount of monomer a as in example 1.
Comparative example 3
The disperse yellow dye was replaced with an equal amount of monomer B as in example 1.
Performance testing
To compare the properties of examples 1 to 3 and comparative examples 1 to 3, the absorbances A of the alkaline stock bath and the residual liquor were measured at a wavelength of 420nm, respectively, according to the residual liquor colorimetry0And A1According to the formula E ═ A0-A1)/A0Dye uptake was obtained at 100%; then the rubbing color fastness and the washing color fastness of the superfine denier polyester fiber fabric are determined according to the national standards GB/T3920-2008 and GB/T3921.1-2008. See table 1 for results.
TABLE 1
As can be seen from table 1, compared with comparative example 1, examples 1 to 3 of the present invention realize the dyeing process of the ultrafine denier polyester fiber in one bath through the selection of the specific alkali-resistant dye and the quaternary ammonium salt accelerator in combination with the optimization of the dyeing process parameters of the ultrafine denier polyester, greatly shorten the dyeing process of the ultrafine denier polyester fiber, and improve the dye uptake of the yellow disperse dye applied to the ultrafine denier polyester fiber; and meanwhile, the rubbing fastness and the washing fastness of the fabric are improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (8)
1. A short-process printing and dyeing method of superfine denier polyester fibers comprises the following steps: putting the superfine denier polyester fiber into an alkaline dye bath at room temperature; heating to a target temperature, and keeping the temperature for a certain time; cooling, washing with water, and reduction cleaning; washing with water again, and finally drying; is characterized in that the formula of the alkaline dye bath is as follows:
2-8g/L of sodium hydroxide;
benzyl alcohol 12-22 g/L;
2-6o.w.f% of disperse yellow dye;
0.5-2g/L of dispersant MF;
0.02-0.15g/L of quaternary ammonium salt accelerator;
wherein the disperse yellow dye is selected from the combination of disperse yellow dye monomers A and B in a weight ratio of (30-70) to (70-30), calculated based on the total weight of the disperse yellow dye,
the molecular formula of the quaternary ammonium salt accelerant is as follows:
2. the short process printing and dyeing method according to claim 1, wherein the bath ratio of the superfine denier polyester fiber to the alkaline dye bath is 1: 10-30.
3. The short-process printing and dyeing method according to claim 1, characterized in that the target temperature is 100-110 ℃; the heat preservation time is 40-80 min.
4. The short process printing and dyeing method according to claim 1, characterized in that the temperature rise process is divided into two stages: in the first stage, the temperature is between room temperature and 80 ℃, and the heating rate is 1.5-3 ℃/min; in the second stage, the temperature is 80 ℃ to the target temperature, and the heating rate is 0.5-1.5 ℃/min.
5. The short process printing and dyeing method according to claim 1, characterized in that the holding time is 40-80 min.
6. The short-process printing and dyeing method according to claim 1, characterized in that the cooling and washing step comprises the following steps: cooling to 80-90 deg.C, washing with water for 2-5 times, each for 5-20 min.
7. The short process printing and dyeing method according to claim 1, characterized in that the reduction cleaning step is: 2-4g/L of sodium hydroxide, 2-4g/L of sodium hydrosulfite, 60-80 ℃ and a bath ratio of 1:40-60 for 10-40 min.
8. The short process printing and dyeing method according to claim 1, characterized in that the rewashing step is: washing with water for 5-20min for 3-10 times.
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| CN111636216B (en) * | 2020-06-15 | 2023-11-14 | 浙江乔治白校服有限公司 | Printing and dyeing method of environment-friendly school uniform fabric |
| CN112647320B (en) * | 2020-12-17 | 2022-04-19 | 长胜纺织科技发展(上海)有限公司 | Reactive dye transfer dyeing method for denim |
| CN113005790B (en) * | 2021-02-09 | 2023-07-25 | 绍兴文理学院 | Dyeing assistant and application thereof in dyeing coupling type disperse dye suede fabric |
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