CN112878069B - Polyamide fabric dyeing process with high dye-uptake - Google Patents
Polyamide fabric dyeing process with high dye-uptake Download PDFInfo
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- CN112878069B CN112878069B CN202110102164.5A CN202110102164A CN112878069B CN 112878069 B CN112878069 B CN 112878069B CN 202110102164 A CN202110102164 A CN 202110102164A CN 112878069 B CN112878069 B CN 112878069B
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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
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/24—Polyamides; Polyurethanes
- D06P3/241—Polyamides; Polyurethanes using acid 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
- D06P1/0032—Determining dye recipes and dyeing parameters; Colour matching or monitoring
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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
- D06P1/39—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 acid 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
- D06P1/44—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
-
- 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
- D06P5/04—After-treatment with organic compounds
- D06P5/06—After-treatment with organic compounds containing nitrogen
Abstract
The invention relates to the technical field of dyeing processes, in particular to a dyeing process for a polyamide fabric with high dye uptake. The process steps of the invention are as follows: pretreating a nylon fabric, removing impurities and oil stains in the fiber, washing the nylon fabric for multiple times, then putting the nylon fabric into a dye vat for dyeing, raising the temperature to 90-100 ℃, cooling the dyed nylon fabric for fixation after dyeing is finished, and discharging the nylon fabric after washing the nylon fabric again. The dyeing process has the characteristics of high dye uptake, strong color fixing property, difficult generation of colored patterns, energy conservation and emission reduction.
Description
Technical Field
The invention relates to the technical field of dyeing processes, in particular to a dyeing process for a nylon fabric with high dye uptake.
Background
The nylon fabric has good elasticity, good wear resistance, better moisture absorption than polyester fiber and better wearing comfort than polyester clothes, is widely used for garment fabrics, high-grade underwear, sports clothes, mountaineering wear and the like, and is highly popular with people. With the development of social economy and the improvement of living standard, people pay more attention to ecological and environmental protection problems, and put forward higher requirements on the color fastness of dyed fabrics, especially the color fastness of export textile products. In most cases, acid dyes are used for dyeing in the dyeing process of nylon fabrics, the acid dyes belong to anionic dyes, the molecular weight is small, the water solubility is good, and partial dyes combined on fibers in aqueous solution can be dissociated, so that the dyed nylon fabrics have poor washing fastness, dry and wet rubbing fastness and perspiration fastness, and the acid dyes have low light fastness level, so that the color fastness of the nylon fabrics needs to be improved by using a color fixing agent.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a continuous vat dyeing process for black knitted fabric. The dyeing process has the characteristics of high dye uptake, strong color fixing property, difficult generation of colored patterns, energy conservation and emission reduction.
The purpose of the invention is realized by the following technical scheme:
a nylon fabric dyeing process with high dye-uptake rate comprises the following steps:
s1 pretreatment: soaking the nylon fabric in a 35-45 ℃ water vat for 10-18min, adding a scouring agent according to a bath ratio of 1 (7-10), heating to 75-90 ℃, and then preserving heat for 30-40min, wherein the scouring agent is added to remove oil stains and impurities on the nylon fabric and prepare for later dyeing;
s2 water washing: after the heat preservation is finished, water in the cylinder is discharged, then the water is added for washing twice, the time of each time is 10-25min, then the water and glacial acetic acid with the concentration of 98% are added, the temperature is raised to 50-75 ℃, the water washing is carried out for 16-24min, the color fixing agent can be accelerated to enter the nylon fiber by washing the nylon fabric before color fixing, and the color fixing agent is not easy to form floating color on the surface layer of the fabric by washing, which is not beneficial to the effect guarantee of nylon acid dyeing;
s3 staining: putting the washed nylon fabric into a dye vat with the temperature of 20-25 ℃, adding a dye solution and an auxiliary dye, stirring for 10-25min, wherein the pH is 4.5-5.5, the bath ratio is 1 (8-10), heating to 90-100 ℃, keeping the temperature for 25-40min, the temperature is an important factor for controlling dye-uptake, the swelling degree of the fiber, the performance of the dye and the exertion of the auxiliary function are influenced due to the high and low temperature, the nylon is thermoplastic fiber, the dye-uptake is slow at the low temperature, and the good dye-uptake effect can be achieved at the temperature of 90-100 ℃;
S4 fixation: after dyeing is finished, the temperature of a dye vat is reduced to 60-80 ℃, then a color fixing agent is added, the bath ratio is 1:20, the color fixing and heat preservation time is 20-35min, the color fixing temperature is increased, the diffusion rate of a color fixing agent molecular chain is accelerated, and the color fixing agent molecular chain can be adsorbed more quickly, but after the color fixing temperature is too high, the color fixing agent molecules can enter the fiber molecules, so that the coating effect of the color fixing agent on the fiber surface is reduced, the contact between the dye molecules and water cannot be blocked well, and the color fastness is poor, therefore, the best color fixing temperature is 60-80 ℃;
s5 cylinder discharging: adding water and glacial acetic acid with the concentration of 98% into the color-fixed nylon fabric, heating to 50-75 ℃, washing for 16-24min, adding water, washing for two times, each time being 10-25min, keeping the temperature for 30-45min, and discharging the fabric.
Further, the addition amount of the scouring agent in the step S1 is 6-8 g/L; the adding amount of the glacial acetic acid in the step S2 is 2-4 g/L; the addition amount of the color fixing agent is 4-6 g/L.
Further, the scouring agent of the step S1 is prepared by mixing 97% concentration sodium carbonate, sodium silicate and hydrogen peroxide according to a mass ratio of 2:2: 3.
Further, the temperature rise rate of the step S1 is 2-6 ℃/min; the temperature rise rate of the step S2 is 1-3 ℃/min; the temperature rise rate of the step S3 is 1-2 ℃/min, the temperature rise rate during dyeing has great influence on the dyeing effect, and the dyeing effect is generated when the temperature rise rate is too high, so that the efficiency and the dyeing effect can be better considered when the temperature rise rate is controlled to be 1-2 ℃/min.
Further, the mass ratio of the dyeing solution to the dyeing assistant in the step S3 is (14-16): (2-3).
Further, the dyeing assistant of step S3 is a leveling agent DM-2481; in the step S3, the dye content is 42-55g/L, and the leveling agent DM-2481 is a special zwitterionic nylon leveling agent and can effectively change the affinity of the nylon fiber to the dye. In the initial dyeing stage, a simple complex can be formed with an acidic (weak acidic) dye, and the ionic type of the nylon fiber can be effectively changed to enable the nylon fiber to have negative charges.
Further, the fixing agent in the step S4 is composed of dimethyldiallylammonium chloride, a crosslinking agent and an initiator according to a mass ratio of 52:6: 3.
Further, the cross-linking agent is polyamide polyamine epichlorohydrin; the initiator is azobisisobutyronitrile.
The invention has the beneficial effects that:
1. the invention simplifies the process steps, does not discharge liquid after dyeing, but adopts one-bath color fixation after cooling, thus not only not reducing the color fixation effect, but also greatly simplifying the process steps, saving the cost and reducing the discharge of sewage.
2. The invention adopts the color fixing agent which takes dimethyl diallyl ammonium chloride as the main component, can achieve the best color fixing effect at the color fixing temperature of 60-80 ℃, achieves the best effect on various color fastnesses of the nylon fabric when the color fixing time is 20-35min, eliminates the color difference, achieves the best balance between the effect and the efficiency, and does not improve the color fastness of the nylon greatly but shows the plateau stage if the color fixing time is continuously prolonged.
3. The invention adopts the leveling agent DM-2481 as a dyeing auxiliary agent, and the leveling agent DM-2481 is a special amphoteric ion type nylon leveling agent, so that the affinity of the nylon fiber to the dye can be effectively changed. In the initial dyeing stage, a simple complex can be formed with an acidic (weak acidic) dye, and the ionic type of the nylon fiber can be effectively changed, so that the nylon fiber has negative charges, and a better dyeing effect is achieved.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the following specific examples, but the scope of the present invention is not limited to the following.
Example 1
A nylon fabric dyeing process with high dye-uptake rate comprises the following steps:
s1 pretreatment: soaking nylon fabric in 35-45 deg.C water tank for 10-18min, adding scouring agent at bath ratio of 1:7, heating to 75 deg.C, and keeping the temperature for 30 min;
s2 water washing: draining water in the jar after heat preservation, adding water for washing twice, wherein each time is 10min, adding water and 98% glacial acetic acid, heating to 50 ℃, and washing for 16 min;
s3 staining: putting the washed chinlon fabric into a dye vat with the temperature of 20 ℃, adding a dye solution and a dyeing assistant, stirring for 10min, wherein the pH is 4.5, the bath ratio is 1:8, heating to 90 ℃, and keeping the temperature for 25 min;
S4 color fixation: after dyeing is finished, the temperature of the dye vat is reduced to 60 ℃, then a color fixing agent is added, the bath ratio is 1:20, and color fixing and heat preservation are carried out for 20 min;
s5 cylinder discharge: adding water and glacial acetic acid with the concentration of 98% into the color-fixed nylon fabric, heating to 50 ℃, washing for 16min, adding water, washing for two times, each time being 10min, keeping the temperature for 30min, and then discharging the fabric.
Further, the addition amount of the scouring agent in the step S1 is 6 g/L; the adding amount of the glacial acetic acid in the step S2 is 2 g/L; the addition amount of the color fixing agent is 4 g/L.
Further, the scouring agent of the step S1 is prepared by mixing 97% concentration sodium carbonate, sodium silicate and hydrogen peroxide according to a mass ratio of 2:2: 3.
Further, the temperature rise rate of step S1 is 2 ℃/min; the temperature rise rate of the step S2 is 1 ℃/min; the temperature increase rate in step S3 was 1 ℃/min.
Further, the mass ratio of the dyeing solution to the dyeing assistant in the step S3 is 14: 2.
further, the dyeing assistant of step S3 is a leveling agent DM-2481; the dye content of step S3 was 42 g/L.
Further, the fixing agent in the step S4 is composed of dimethyldiallylammonium chloride, a crosslinking agent and an initiator according to a mass ratio of 52:6: 3.
Further, the cross-linking agent is polyamide polyamine epichlorohydrin; the initiator is azobisisobutyronitrile.
Example 2
A nylon fabric dyeing process with high dye-uptake rate comprises the following steps:
s1 pretreatment: soaking nylon fabric in 35-45 deg.C water tank for 11min, adding scouring agent at bath ratio of 1 (7-10), heating to 78 deg.C, and keeping the temperature for 32 min;
s2 water washing: draining water in the jar after heat preservation, adding water for washing twice, wherein each time is 13min, adding water and 98% glacial acetic acid, heating to 56 deg.C, and washing for 18 min;
s3 staining: putting the washed chinlon fabric into a dye vat with the temperature of 21 ℃, adding a dye solution and an auxiliary dye, stirring for 14min, wherein the pH is 4.7, the bath ratio is 1:8, heating to 92 ℃, and keeping the temperature for 28 min;
s4 color fixation: after dyeing is finished, the temperature of the dye vat is reduced to 63 ℃, then a color fixing agent is added, the bath ratio is 1:20, and color fixing and heat preservation are carried out for 24 min;
s5 cylinder discharge: adding water and glacial acetic acid with the concentration of 98% into the color-fixed nylon fabric, heating to 56 ℃, washing for 19min, adding water, washing for two times, each time for 14min, keeping the temperature for 33min, and discharging the fabric.
Further, the addition amount of the scouring agent in the step S1 is 6.5 g/L; the adding amount of the glacial acetic acid in the step S2 is 2.5 g/L; the addition amount of the color fixing agent is 4.5 g/L.
Further, the scouring agent of the step S1 is prepared by mixing 97% concentration sodium carbonate, sodium silicate and hydrogen peroxide according to a mass ratio of 2:2: 3.
Further, the temperature rise rate of the step S1 is 3 ℃/min; the temperature rise rate of step S2 is 1.5 ℃/min; the temperature rise rate in step S3 was 1.2 ℃/min.
Further, the mass ratio of the dyeing solution to the dyeing assistant in the step S3 is 14.5: 2.
further, the dyeing assistant of step S3 is a leveling agent DM-2481; the dye content of step S3 was 46 g/L.
Further, the fixing agent in the step S4 is composed of dimethyldiallylammonium chloride, a crosslinking agent and an initiator according to a mass ratio of 52:6: 3.
Further, the cross-linking agent is polyamide polyamine epichlorohydrin; the initiator is azobisisobutyronitrile.
Example 3
A nylon fabric dyeing process with high dye-uptake rate comprises the following steps:
s1 pretreatment: soaking nylon fabric in 40 deg.C water tank for 14min, adding scouring agent at bath ratio of 1:8, heating to 82 deg.C, and keeping the temperature for 35 min;
s2 water washing: draining water in the jar after heat preservation, adding water for washing twice, wherein each time is 17min, adding water and 98% glacial acetic acid, heating to 65 deg.C, and washing for 20 min;
s3 staining: putting the washed chinlon fabric into a dye vat with the temperature of 22 ℃, adding a dye solution and a dyeing assistant, stirring for 17min, wherein the pH is 5, the bath ratio is 1:9, heating to 95 ℃, and keeping the temperature for 32 min;
S4 color fixation: after dyeing is finished, the temperature of the dye vat is reduced to 70 ℃, then a color fixing agent is added, the bath ratio is 1:20, and color fixing and heat preservation are carried out for 27 min;
s5 cylinder discharge: adding water and glacial acetic acid with the concentration of 98% into the color-fixed nylon fabric, heating to 62 ℃, washing for 20min, adding water, washing for two times, wherein the time is 17min each time, keeping the temperature for 37min, and then discharging the fabric.
Further, the addition amount of the scouring agent in the step S1 is 7 g/L; the adding amount of the glacial acetic acid in the step S2 is 3 g/L; the addition amount of the color fixing agent is 5 g/L.
Further, the scouring agent of the step S1 is prepared by mixing 97% concentration sodium carbonate, sodium silicate and hydrogen peroxide according to a mass ratio of 2:2: 3.
Further, the temperature rise rate of the step S1 is 4 ℃/min; the temperature rise rate of step S2 is 2 ℃/min; the temperature rise rate in step S3 was 1.5 deg.C/min.
Further, the mass ratio of the dye solution to the dyeing assistant in the step S3 is 15: 2.5.
further, the dyeing assistant of step S3 is a leveling agent DM-2481; the dye content of the step S3 is 48/L.
Further, the fixing agent in the step S4 is composed of dimethyldiallylammonium chloride, a crosslinking agent and an initiator according to a mass ratio of 52:6: 3.
Further, the cross-linking agent is polyamide polyamine epichlorohydrin; the initiator is azobisisobutyronitrile.
Example 4
A nylon fabric dyeing process with high dye-uptake rate comprises the following steps:
s1 pretreatment: soaking the nylon fabric in 42 deg.C water tank for 16min, adding scouring agent at bath ratio of 1:9, heating to 85 deg.C, and maintaining the temperature for 38 min;
s2 water washing: draining water in the jar after heat preservation, adding water for washing twice, wherein each time is 23min, adding water and 98% glacial acetic acid, heating to 72 deg.C, and washing for 22 min;
s3 staining: putting the washed chinlon fabric into a dye vat with the temperature of 23 ℃, adding a dye solution and a dyeing assistant, stirring for 22min, keeping the pH at 5.3 and the bath ratio at 1:9, heating to 97 ℃, and keeping the temperature for 36 min;
s4 color fixation: after dyeing is finished, the temperature of the dye vat is reduced to 77 ℃, then a color fixing agent is added, the bath ratio is 1:20, and color fixing and heat preservation are carried out for 33 min;
s5 cylinder discharge: adding water and glacial acetic acid with the concentration of 98% into the color-fixed nylon fabric, heating to 72 ℃, washing with water for 23min, adding water, washing with water twice, each time for 22min, keeping the temperature for 42min, and discharging the fabric.
Further, the addition amount of the scouring agent in the step S1 is 7 g/L; the adding amount of the glacial acetic acid in the step S2 is 3 g/L; the addition amount of the color fixing agent is 5 g/L.
Further, the scouring agent of the step S1 is prepared by mixing 97% concentration sodium carbonate, sodium silicate and hydrogen peroxide according to a mass ratio of 2:2: 3.
Further, the temperature rise rate of step S1 is 5 ℃/min; the temperature rise rate of the step S2 is 2.5 ℃/min; the temperature rise rate in step S3 was 1.6 deg.C/min.
Further, the mass ratio of the dyeing solution to the dyeing assistant in the step S3 is 15.5: 2.5.
further, the dyeing assistant of step S3 is a leveling agent DM-2481; the dye content of step S3 was 53 g/L.
Further, the fixing agent in the step S4 is composed of dimethyldiallylammonium chloride, a crosslinking agent and an initiator according to a mass ratio of 52:6: 3.
Further, the cross-linking agent is polyamide polyamine epichlorohydrin; the initiator is azobisisobutyronitrile.
Example 5
A nylon fabric dyeing process with high dye-uptake rate comprises the following steps:
s1 pretreatment: soaking the nylon fabric in a water tank at 45 ℃ for 18min, adding a scouring agent at a bath ratio of 1:10, heating to 90 ℃, and keeping the temperature for 40 min;
s2 water washing: after the heat preservation is finished, discharging water in the cylinder, adding water for washing twice, wherein the time of each time is 25min, adding water and glacial acetic acid with the concentration of 98%, heating to 75 ℃, and washing for 24 min;
s3 staining: putting the washed chinlon fabric into a dye vat with the temperature of 25 ℃, adding a dye solution and a dyeing assistant, stirring for 25min, keeping the pH at 5.5 and the bath ratio at 1:10, heating to 100 ℃, and keeping the temperature for 40 min;
S4 color fixation: after dyeing is finished, the temperature of the dye vat is reduced to 80 ℃, then a color fixing agent is added, the bath ratio is 1:20, and color fixing and heat preservation are carried out for 35 min;
s5 cylinder discharge: adding water and glacial acetic acid with the concentration of 98% into the color-fixed nylon fabric, heating to 75 ℃, washing for 24min, adding water, washing for two times, keeping the temperature for 45min, and discharging the fabric.
Further, the addition amount of the scouring agent in the step S1 is 8 g/L; the adding amount of the glacial acetic acid in the step S2 is 4 g/L; the addition amount of the color fixing agent is 6 g/L.
Further, the scouring agent of the step S1 is prepared by mixing 97% concentration sodium carbonate, sodium silicate and hydrogen peroxide according to a mass ratio of 2:2: 3.
Further, the temperature rise rate of the step S1 is 6 ℃/min; the temperature rise rate of step S2 is 3 ℃/min; the temperature rise rate in step S3 was 2 ℃/min.
Further, the mass ratio of the dyeing solution to the dyeing assistant in the step S3 is 16: 3.
further, the dyeing assistant of step S3 is a leveling agent DM-2481; the dye content of step S3 was 55 g/L.
Further, the fixing agent in the step S4 is composed of dimethyldiallylammonium chloride, a crosslinking agent and an initiator according to a mass ratio of 52:6: 3.
Further, the cross-linking agent is polyamide polyamine epichlorohydrin; the initiator is azobisisobutyronitrile.
The data obtained by the soaping fastness, fixation and dye uptake tests of examples 1 to 5 are shown in the following table:
| item | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 |
| Soaping fastness (grade) | 3～4 | 3～4 | 4 | 4 | 3～4 |
| Color fixing rate% | 82 | 83 | 88 | 85 | 82 |
| The dye uptake rate% | 85 | 87 | 92 | 90 | 91 |
The soaping fastness test method is determined according to the method of GB/T3921-2008 'color fastness to washing test for textiles';
the detection method of the fixation rate is determined according to GBT 27592 and 2011 determination of the fixation rate of pad dyeing of reactive dyes;
the detection method of the dye uptake is as described in GB/T9337-2009 determination of disperse dye high temperature dyeing uptake.
As can be seen from the above table, each item of data in example 3 is the best, and is the most preferred technical solution.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A nylon fabric dyeing process with high dye uptake is characterized by comprising the following steps:
s1 pretreatment: soaking nylon fabric in 35-45 deg.C water tank for 10-18min, adding scouring agent at bath ratio of 1 (7-10), heating to 75-90 deg.C, and keeping the temperature for 30-40 min;
s2 water washing: draining water in the jar after heat preservation, adding water for washing twice, each time for 10-25min, adding water and 98% glacial acetic acid, heating to 50-75 deg.C, and washing for 16-24 min;
s3 staining: putting the washed chinlon fabric into a dye vat at the temperature of 20-25 ℃, adding a dye solution and a dyeing assistant agent, stirring for 10-25min, wherein the mass ratio of the dye solution to the dyeing assistant agent is (14-16) to (2-3), the dye content is 42-55g/L, the dyeing assistant agent is a leveling agent DM-2481, the pH value is 4.5-5.5, the bath ratio is 1 (8-10), heating to 90-100 ℃, and keeping the temperature for 25-40 min;
s4 color fixation: after dyeing is finished, reducing the temperature of a dye vat to 60-80 ℃, adding 4-6g/L of color fixing agent, wherein the bath ratio is 1:20, fixing color and preserving heat for 20-35 min; the color fixing agent is composed of dimethyl diallyl ammonium chloride, a cross-linking agent and an initiator according to the mass ratio of 52:6:3, wherein the cross-linking agent is polyamide polyamine epichlorohydrin, and the initiator is azobisisobutyronitrile;
S5 cylinder discharge: adding water and glacial acetic acid with the concentration of 98% into the color-fixed nylon fabric, heating to 50-75 ℃, washing for 16-24min, adding water, washing for two times, each time being 10-25min, keeping the temperature for 30-45min, and discharging the fabric.
2. The dyeing process of the chinlon fabric with high dye-uptake according to claim 1, wherein the addition amount of the scouring agent in the step S1 is 6-8 g/L; the addition amount of the glacial acetic acid in the step S2 is 2-4 g/L.
3. The dyeing process of the chinlon fabric with high dye-uptake according to claim 1 or 2, characterized in that the scouring agent of the step S1 is formed by mixing 97% concentration sodium carbonate, sodium silicate and hydrogen peroxide according to a mass ratio of 2:2: 3.
4. The dyeing process of the chinlon fabric with high dye-uptake according to claim 1, characterized in that the temperature rise rate of the step S1 is 2-6 ℃/min; the temperature rise rate of the step S2 is 1-3 ℃/min; the temperature rise rate of step S3 is 1-2 deg.C/min.
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| CN105332297A (en) * | 2015-10-26 | 2016-02-17 | 江苏悦达纺织集团有限公司 | Functional nylon 66 shell fabric and manufacturing method thereof |
| CN106638047A (en) * | 2016-12-28 | 2017-05-10 | 朱爱民 | Dyeing technology of chinlon |
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