CN112878070B - Short-process low-temperature dyeing process for nylon fabric - Google Patents
Short-process low-temperature dyeing process for nylon 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
- 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
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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
- D06P1/44—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
- D06P1/46—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 natural macromolecular substances or derivatives thereof
- D06P1/48—Derivatives of carbohydrates
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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
- D06P1/60—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 polyethers
- D06P1/613—Polyethers without nitrogen
- D06P1/6136—Condensation products of esters, acids, oils, oxyacids with oxiranes
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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
- D06P1/642—Compounds containing nitrogen
- D06P1/649—Compounds containing carbonamide, thiocarbonamide or guanyl groups
- D06P1/6491—(Thio)urea or (cyclic) derivatives
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- 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
- D06P1/642—Compounds containing nitrogen
- D06P1/649—Compounds containing carbonamide, thiocarbonamide or guanyl groups
- D06P1/6494—Compounds containing a guanyl group R-C-N=, e.g. (bi)guanadine, dicyandiamid amidines
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- 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
- D06P1/6515—Hydrocarbons
- D06P1/65156—Halogen-containing hydrocarbons
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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
- D06P1/653—Nitrogen-free carboxylic acids or their salts
- D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
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Abstract
The invention relates to a short-process low-temperature dyeing process for nylon fabric, which comprises the following steps of batching, dyeing and cleaning: s1, proportioning: mixing nylon fabric and water according to the ratio of 1:5-7 of bath ratio in a dyeing machine; s2, dyeing: heating a dyeing machine to 38-42 ℃, adding a dye and a dye auxiliary agent, uniformly mixing, adjusting the pH value to a set value, heating to 60-65 ℃, running for 5-8min, heating to 90-95 ℃ at a first heating rate, preserving heat for 10-15min, heating to 105-110 ℃ at a second heating rate, and preserving heat for 40-50min; s3, cleaning: discharging residual liquid in the dyeing machine in the step S2, adding a detergent and an auxiliary agent, and then, mixing the raw materials according to the ratio of 1: adding water at bath ratio of 12-15, and operating at 60-65 deg.C for 10-20min; and S4, cleaning. The invention has the advantages of short process period, high color fastness, uniform dyeing and high dye uptake.
Description
Technical Field
The invention relates to the technical field of fabric dyeing, in particular to a short-process low-temperature dyeing process for a nylon fabric.
Background
The nylon fabric is a fabric formed by forming yarns into loops by using a knitting needle and then mutually interlooping the loops, is divided into two categories of weft knitting and warp knitting, and is widely applied to aspects of production and life. The spinning process of the nylon fabric on a knitting machine can be divided into three stages: feeding yarn, looping and winding.
The advantages and the disadvantages also exist in the semi-continuous CPB dyeing process of knitwear. The advantages are that: the method has low energy consumption and small occupied space of equipment; the fabric dyed by the method has no fluffing phenomenon; the batch size is flexible. Has the following defects: the method still can not carry out continuous production, the time required by color fixation is longer, and the tension of the fabric is not uniform in the padding process; the transition from laboratory to actual production is difficult; the problem of batch color difference exists; the use of large amounts of silicone oil is disadvantageous.
The continuous dyeing experience of the woven fabric is used for reference, and the continuous dyeing process is used for the nylon fabric. The objective requirements for continuous dyeing of cotton and elastic fiber blended polyamide fabrics by using reactive dyes include: the fabric tension is low; the appearance performance is good (no fluffing phenomenon); the hand feeling is better; the water consumption is low; the consumption of chemical materials (such as salts) is low; the treatment time is short; the energy consumption is low; color matching in a laboratory is rapid; the reproducibility is good; the cost is low. And the following 3 points need to be considered: the dyed nylon fabric must be properly treated to be suitable for continuous processing; continuous dyeing equipment must be particularly suitable for processing processes and textile materials. For nylon fabrics containing elastic fibers, the fabric must be pre-shaped before dyeing to ensure the quality of the fabric.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a short-process low-temperature dyeing process for nylon fabric, and solves the problems of long dyeing time, high water consumption and high cost of the nylon fabric.
The purpose of the invention is realized by the following technical scheme:
a short-process low-temperature dyeing process for nylon fabrics comprises the steps of batching, dyeing and cleaning, and comprises the following steps:
s1, proportioning: mixing nylon fabric and water according to the weight ratio of 1:5-7 of bath ratio, and putting the mixture into a dyeing machine;
s2, dyeing: heating a dyeing machine to 38-42 ℃, adding a dye and a dye assistant, uniformly mixing, adjusting the pH value to a set value, heating to 60-65 ℃, running for 5-8min, heating to 90-95 ℃ at a first heating rate, preserving heat for 10-15min, heating to 105-110 ℃ at a second heating rate, and preserving heat for 40-50min;
s3, cleaning: discharging residual liquid in the dyeing machine in the step S2, adding a detergent and an auxiliary agent, and then, mixing the raw materials according to the ratio of 1: adding water at bath ratio of 12-15, and operating at 60-65 deg.C for 10-20min;
s4, cleaning: discharging residual liquid in the dyeing machine in the step S3, and then, according to the proportion of 1: and (3) adding water for cleaning for 2-3 times at a bath ratio of 12-15 to obtain the nylon fabric dyeing product.
In the short-flow low-temperature dyeing process of the nylon fabric, the steps are simple, the process period is short, the bath ratio is small in the processes of batching, dyeing, cleaning and washing, the water consumption is low, and the energy waste is low; the dyeing temperature rise is in the process of the dyeing temperature rise, the temperature is increased firstly, the pH value is adjusted after the dye and the dye auxiliary agent are added, the temperature is slightly high, the dye and the dye auxiliary agent are uniformly mixed, the dye and the dye auxiliary agent cannot be rapidly dyed at the temperature, then the temperature rise is performed, the dyeing is uniform, the coloring is facilitated, the temperature rise is performed at last, the heat preservation and the color fixation are performed, the coloring to the nylon fabric is fast, the coloring is uniform, and the dye is not easy to fall off.
Further, the dye assistant in the step S2 comprises the following components in parts by weight:
substances such as a leveling agent, a thickening agent and the like are added into the dye auxiliary agent, so that the nylon fabric can be colored easily, the coloring is uniform, the dye is not easy to wash off, the cost of the dye auxiliary agent is low, and the dye auxiliary agent is easy to remove in the later period.
Preferably, the dye assistant in the step S2 is composed of the following components in parts by weight:
further, the weight ratio of the dye to the dye assistant is 6-7:1.
further, in the step S2, the first temperature rise rate is 1 ℃/min, and the second temperature rise rate is 0.2 ℃/min.
Further, the pH value in the step S2 is adjusted by 98% acetic acid or sodium acetate.
Further, the pH value in the step S2 is set to 3.5-4.0. The pH is adjusted to be within the range of 3.5-4.0, and the dyeing is fast and uniform.
Further, the detergent in the step S3 is a nonionic surfactant; the cleaning assistant is at least two of sodium phosphate, sodium hydrosulfite and triethanolamine. The detergent can remove residual dye auxiliary agent, almost has no influence on dyes, and is easy to clean and has little residual quantity.
Further, the addition amount of the dye auxiliary agent in the step S2 is 8-10g/L; in the step S3, the addition amount of the detergent is 10-15g/L, and the addition amount of the detergent additive is 5-8g/L.
The beneficial effects of the invention are:
1. in the short-flow low-temperature dyeing process of the nylon fabric, the steps are simple, the process period is short, the bath ratio is small in the processes of batching, dyeing, cleaning and washing, the water consumption is low, and the energy waste is low; the color fading is prevented, the stability of the color phase is improved, and the whole process is convenient and easy to control;
2. in the dyeing temperature rise process, the temperature is firstly raised, the dye and the dye auxiliary agent are added, then the pH value is adjusted, the temperature is slightly high, the dye and the dye auxiliary agent can be uniformly mixed, the dye and the dye auxiliary agent cannot be rapidly dyed at the temperature, then the temperature is raised and the dyeing is uniform, the coloring is facilitated, the temperature is raised, the heat preservation and the color fixation are finally carried out, the coloring to the polyamide fabric is rapid, the coloring is uniform, and the dye is not easy to fall off;
3. substances such as a leveling agent, a thickening agent and the like are added into the dye auxiliary agent, so that the nylon fabric can be colored uniformly, the dye is not easy to wash off, the cost of the used dye auxiliary agent is low, and the dye auxiliary agent is easy to remove in the later period; the pH value is adjusted to be within the range of 3.5-4.0, and the dyeing is fast and uniform; the detergent can remove residual dye auxiliaries, almost has no influence on dyes, and is easy to clean and low in residual quantity.
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 short-process low-temperature dyeing process for nylon fabrics comprises the steps of batching, dyeing and cleaning, and comprises the following steps:
s1, proportioning: mixing nylon fabric and water according to the ratio of 1:5, putting the bath into a dyeing machine;
s2, dyeing: heating a dyeing machine to 38 ℃, adding a dye and a dye assistant, uniformly mixing, adjusting the pH value to a set value, heating to 60 ℃, running for 8min, heating to 90 ℃ at a first heating rate, preserving heat for 15min, heating to 105 ℃ at a second heating rate, and preserving heat for 50min;
s3, cleaning: discharging residual liquid in the dyeing machine in the step S2, adding a detergent and an auxiliary agent, and then, mixing the raw materials according to the ratio of 1: adding water at bath ratio of 12, and operating at 60 deg.C for 20min;
s4, cleaning: discharging residual liquid in the dyeing machine in the step S3, and then, according to the proportion of 1: and (3) adding water into the bath ratio of 12, and washing for 2-3 times to obtain the nylon fabric dyeing product.
Specifically, the dye auxiliary agent in the step S2 comprises the following components in parts by weight:
specifically, the weight ratio of the dye to the dye assistant is 6:1.
specifically, in the step S2, the first heating rate is 1 ℃/min, and the second heating rate is 0.2 ℃/min.
Specifically, the pH value in the step S2 is adjusted by using 98% acetic acid or sodium acetate.
Specifically, the PH set value in the S2 step is 3.5.
Specifically, the detergent in the step S3 is a nonionic surfactant; the cleaning auxiliary agent is sodium phosphate, sodium hydrosulfite and triethanolamine.
Specifically, the addition amount of the dye auxiliary agent in the step S2 is 8g/L; and in the step S3, the addition amount of the detergent is 10g/L, and the addition amount of the detergent additive is 5g/L.
Example 2
A short-process low-temperature dyeing process for nylon fabrics comprises the steps of batching, dyeing and cleaning, and comprises the following steps:
s1, proportioning: mixing nylon fabric and water according to the weight ratio of 1:6, putting the bath ratio into a dyeing machine;
s2, dyeing: heating a dyeing machine to 40 ℃, adding a dye and a dye auxiliary agent, uniformly mixing, adjusting the pH value to a set value, heating to 62 ℃, running for 7min, heating to 92 ℃ at a first heating rate, keeping the temperature for 12min, heating to 108 ℃ at a second heating rate, and keeping the temperature for 45min;
s3, cleaning: discharging residual liquid in the dyeing machine in the step S2, adding a detergent and an auxiliary agent, and then, mixing the raw materials according to the ratio of 1: adding water at bath ratio of 14, and operating at 62 deg.C for 15min;
s4, cleaning: discharging residual liquid in the dyeing machine in the step S3, and then performing the following steps according to the proportion of 1: and (4) adding water for washing for 2-3 times at a bath ratio of 14 to obtain the nylon fabric dyeing product.
Specifically, the dye auxiliary agent in the step S2 comprises the following components in parts by weight:
specifically, the weight ratio of the dye to the dye assistant is 7:1.
specifically, in the step S2, the first heating rate is 1 ℃/min, and the second heating rate is 0.2 ℃/min.
Specifically, the pH value in the step S2 is adjusted by 98% acetic acid or sodium acetate.
Specifically, the set value of PH in the S2 step is 3.8.
Specifically, the detergent in the step S3 is a nonionic surfactant; the cleaning auxiliary agent is sodium phosphate and sodium hydrosulfite.
Specifically, the adding amount of the dye auxiliary agent in the step S2 is 9g/L; and in the step S3, the addition amount of the detergent is 12g/L, and the addition amount of the detergent additive is 7g/L.
Example 3
A short-process low-temperature dyeing process for nylon fabrics comprises the steps of batching, dyeing and cleaning, and comprises the following steps:
s1, proportioning: mixing nylon fabric and water according to the weight ratio of 1:7, putting the bath ratio into a dyeing machine;
s2, dyeing: heating a dyeing machine to 42 ℃, adding a dye and a dye auxiliary agent, uniformly mixing, adjusting the pH value to a set value, heating to 65 ℃, running for 5min, heating to 95 ℃ at a first heating rate, preserving heat for 10min, heating to 110 ℃ at a second heating rate, and preserving heat for 40min;
s3, cleaning: discharging residual liquid in the dyeing machine in the step S2, adding a detergent and an auxiliary agent, and then, mixing the raw materials according to the ratio of 1: adding water at bath ratio of 15, and operating at 65 deg.C for 10min;
s4, cleaning: discharging residual liquid in the dyeing machine in the step S3, and then performing the following steps according to the proportion of 1: and (5) adding water for cleaning for 2-3 times at a bath ratio of 15 to obtain the nylon fabric dyeing product.
Specifically, the dye auxiliary agent in the step S2 comprises the following components in parts by weight:
specifically, the weight ratio of the dye to the dye assistant is 7:1.
specifically, in the step S2, the first heating rate is 1 ℃/min, and the second heating rate is 0.2 ℃/min.
Specifically, the pH value in the step S2 is adjusted by 98% acetic acid or sodium acetate.
Specifically, the PH set value in the S2 step is 4.0.
Specifically, the detergent in the step S3 is a nonionic surfactant; the cleaning assistant is sodium phosphate and triethanolamine.
Specifically, the addition amount of the dye auxiliary agent in the step S2 is 10g/L; and in the step S3, the addition amount of the detergent is 15g/L, and the addition amount of the detergent additive is 8g/L.
Example 4
A short-process low-temperature dyeing process for nylon fabrics comprises the steps of batching, dyeing and cleaning, and comprises the following steps:
s1, proportioning: mixing nylon fabric and water according to the weight ratio of 1:6, putting the bath ratio into a dyeing machine;
s2, dyeing: heating a dyeing machine to 42 ℃, adding a dye and a dye auxiliary agent, uniformly mixing, adjusting the pH value to a set value, heating to 65 ℃, running for 8min, heating to 95 ℃ at a first heating rate, preserving heat for 15min, heating to 110 ℃ at a second heating rate, and preserving heat for 50min;
s3, cleaning: discharging residual liquid in the dyeing machine in the step S2, adding a detergent and an auxiliary agent, and then, mixing the raw materials according to the ratio of 1: adding water at bath ratio of 15, and operating at 65 deg.C for 20min;
s4, cleaning: discharging residual liquid in the dyeing machine in the step S3, and then performing the following steps according to the proportion of 1: and (5) adding water for cleaning for 2-3 times at a bath ratio of 15 to obtain the nylon fabric dyeing product.
Specifically, the dye auxiliary agent in the step S2 comprises the following components in parts by weight:
specifically, the weight ratio of the dye to the dye assistant is 7:1.
specifically, in the step S2, the first heating rate is 1 ℃/min, and the second heating rate is 0.2 ℃/min.
Specifically, the pH value in the step S2 is adjusted by 98% acetic acid or sodium acetate.
Specifically, the set value of PH in the S2 step is 4.0.
Specifically, the detergent in the step S3 is a nonionic surfactant; the cleaning auxiliary agent is sodium phosphate, sodium hydrosulfite and triethanolamine.
Specifically, the adding amount of the dye auxiliary agent in the step S2 is 10g/L; and in the step S3, the addition amount of the detergent is 15g/L, and the addition amount of the detergent additive is 8g/L.
Example 5
A short-process low-temperature dyeing process for nylon fabrics comprises the steps of batching, dyeing and cleaning, and comprises the following steps:
s1, proportioning: mixing nylon fabric and water according to the weight ratio of 1:5, putting the bath ratio into a dyeing machine;
s2, dyeing: heating a dyeing machine to 38 ℃, adding a dye and a dye auxiliary agent, uniformly mixing, adjusting the pH value to a set value, heating to 60 ℃, running for 5min, heating to 90 ℃ at a first heating rate, preserving heat for 10min, heating to 105 ℃ at a second heating rate, and preserving heat for 45min;
s3, cleaning: discharging residual liquid in the dyeing machine in the step S2, adding a detergent and an auxiliary agent, and then performing the following steps of 1:13 bath ratio, adding water, and operating at 65 deg.C for 15min;
s4, cleaning: discharging residual liquid in the dyeing machine in the step S3, and then performing the following steps according to the proportion of 1: and (3) adding water into the bath ratio of 14, and washing for 2-3 times to obtain the nylon fabric dyeing product.
Specifically, the dye auxiliary agent in the step S2 comprises the following components in parts by weight:
specifically, the weight ratio of the dye to the dye assistant is 7:1.
specifically, in the step S2, the first heating rate is 1 ℃/min, and the second heating rate is 0.2 ℃/min.
Specifically, the pH value in the step S2 is adjusted by 98% acetic acid or sodium acetate.
Specifically, the PH set value in the S2 step is 3.5.
Specifically, the detergent in the step S3 is a nonionic surfactant; the cleaning auxiliary agent is sodium phosphate, sodium hydrosulfite and triethanolamine.
Specifically, the adding amount of the dye auxiliary agent in the step S2 is 8g/L; and in the step S3, the addition amount of the detergent is 10g/L, and the addition amount of the detergent additive is 5g/L.
Examples 1-5 the test properties of the dyed nylon fabric prepared in example 1 are shown below:
table 1 test data for dyed nylon fabric prepared in examples 1-5
As can be seen from the data in Table 1, examples 1 to 5 have high uniformity, high dye uptake and high color fastness. The prepared dyed chinlon fabric is not easy to fade and decolorize and has high dyeing uniformity.
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 (2)
1. A short-process low-temperature dyeing process for nylon fabrics comprises the steps of batching, dyeing, cleaning and washing, and is characterized by comprising the following steps:
s1, proportioning: mixing nylon fabric and water according to the weight ratio of 1:5-7 of bath ratio in a dyeing machine;
s2, dyeing: heating a dyeing machine to 38-42 ℃, adding a dye and a dye auxiliary agent, uniformly mixing, adjusting the pH value to a set value, heating to 60-65 ℃, running for 5-8min, heating to 90-95 ℃ at a first heating rate, preserving heat for 10-15min, heating to 105-110 ℃ at a second heating rate, and preserving heat for 40-50min;
s3, cleaning: discharging residual liquid in the dyeing machine in the step S2, adding a detergent and an auxiliary agent, and then, mixing the raw materials according to the ratio of 1: adding water at bath ratio of 12-15, and operating at 60-65 deg.C for 10-20min;
s4, cleaning: discharging residual liquid in the dyeing machine in the step S3, and then performing the following steps according to the proportion of 1: washing with water at a bath ratio of 12-15 for 2-3 times to obtain dyed nylon fabric;
wherein:
the dye auxiliary agent in the step S2 comprises the following components in parts by weight:
40-45 parts of polyethylene glycol monooleate;
2-5 parts of 4,4' -bischloromethylbiphenyl;
2-4 parts of 1, 3-bis [3- (dimethylamino) propyl ] urea;
2-5 parts of oleic acid;
10-13 parts of propylene glycol alginate;
5-8 parts of dicyandiamide;
the weight ratio of the dye to the dye auxiliary agent is 6-7:1;
in the step S2, the first heating rate is 1 ℃/min, and the second heating rate is 0.2 ℃/min;
in the step S2, the pH value is adjusted by sodium acetate or acetic acid with the mass concentration of 98%;
the set value of the pH value in the step S2 is 3.5-4.0;
the detergent in the step S3 is a nonionic surfactant; the cleaning auxiliary agent is at least two of sodium phosphate, sodium hydrosulfite and triethanolamine;
the addition amount of the dye auxiliary agent in the step S2 is 8-10g/L; and in the step S3, the addition amount of the detergent is 10-15g/L, and the addition amount of the detergent additive is 5-8g/L.
2. The short-process low-temperature dyeing process of nylon fabric according to claim 1, characterized in that the dye assistant in the step S2 consists of the following components in parts by weight:
43 parts of polyethylene glycol monooleate sodium sulfonate;
4,4' -dichloromethyl biphenyl;
3 parts of 1, 3-bis [3- (dimethylamino) propyl ] urea;
3 parts of oleic acid;
12 parts of propylene glycol alginate;
6 parts of dicyandiamide.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110106787.XA CN112878070B (en) | 2021-01-26 | 2021-01-26 | Short-process low-temperature dyeing process for nylon fabric |
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| CN102628224B (en) * | 2012-04-01 | 2013-09-18 | 嘉兴学院 | One-bath, multi-color dyeing method for multi-component superfine fibers |
| CN104480749A (en) * | 2014-11-27 | 2015-04-01 | 昆山瑞昱化工有限公司 | High temperature leveling agent |
| CN104862993A (en) * | 2015-05-25 | 2015-08-26 | 青岛康泰鑫环保科技有限公司 | Efficient dispersing agent for textile |
| CN110438826A (en) * | 2019-08-07 | 2019-11-12 | 中纺院（浙江）技术研究院有限公司 | The technique that a kind of auxiliary agent and its preparation method and application bathes method dyeing in fabric entirely |
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