CN114657798A - Efficient dyeing process for cotton-polyester blended fabric - Google Patents
Efficient dyeing process for cotton-polyester blended fabric Download PDFInfo
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- CN114657798A CN114657798A CN202210300908.9A CN202210300908A CN114657798A CN 114657798 A CN114657798 A CN 114657798A CN 202210300908 A CN202210300908 A CN 202210300908A CN 114657798 A CN114657798 A CN 114657798A
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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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/38—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using reactive dyes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/6735—Salts or hydroxides of alkaline or alkaline-earth metals with anions different from those provided for in D06P1/67341
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67391—Salts or oxidising-compounds mixtures
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/82—Textiles which contain different kinds of fibres
- D06P3/8204—Textiles which contain different kinds of fibres fibres of different chemical nature
- D06P3/8223—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups
- D06P3/8238—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using different kinds of dye
- D06P3/8252—Textiles which contain different kinds of fibres fibres of different chemical nature mixtures of fibres containing hydroxyl and ester groups using different kinds of dye using dispersed and reactive dyes
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Abstract
The invention discloses a high-efficiency dyeing process for cotton-polyester blended fabric, relates to a dyeing and finishing process, aims to solve the problems of serious energy consumption and complex process in the traditional blended fabric dyeing and finishing, and has the technical scheme that: s1 selecting a fabric, selecting a T/C fabric or a CVC fabric as a gray fabric, checking that no obvious defects exist on the surface of the gray fabric, and then performing pre-setting by hot air; s2 dye batching, proportioning the dyes in sequence according to the type of the grey cloth, dyeing S3, putting the grey cloth into a dyeing machine, adding the proportioned dyes into the dyeing machine according to a bath ratio, operating at 20min, heating to 130 ℃, and operating at 40 min; s4, preparing an alkaline agent, uniformly mixing anhydrous sodium sulphate and soda ash, directly adding into a dyeing machine after dyeing is finished, and operating for 20 min; s5 cooling and dyeing. The invention shortens the process duration of dyeing and finishing the blended fabric, reduces the total amount of steam, electricity and water required in the traditional process, is more energy-saving and environment-friendly, and reduces the use and pollution of water resources.
Description
Technical Field
The invention relates to a dyeing and finishing process, in particular to a high-efficiency dyeing process for cotton-polyester blended fabric.
Background
The cotton/polyester blended fabric has the advantages of polyester fabrics and cotton fabrics, has excellent elasticity, good wear resistance, stable fabric size, difficult shrinkage, difficult crease of the prepared clothes, easy drying in washing, moisture absorption and sweat discharge and soft hand feeling, is popular with consumers and is increasingly used for various garment fabrics [1-3 ]. The cotton/polyester blended fabric is divided into two types of T/C and CVC, the cotton component in the CVC fabric is more than 60%, the advantage of the natural performance of cotton is more prominent, and the CVC fabric is commonly used for garment fabrics; the polyester content of the T/C fabric is more than 60 percent, and the T/C fabric is commonly used as a tooling fabric.
The dip dyeing process of the cotton/polyester blended fabric is complex, the dye is selected in various ways, the disperse dye is usually selected to dye the polyester, and the reactive dye is usually selected to dye the cotton, but the dyeing process has a plurality of difficulties: the disperse dye can stain cotton components at high temperature, is not easy to clean, can affect the fastness of the final fabric, and the cotton/polyester fabric has complex color matching, needs to be respectively matched with cotton and polyester, needs to be leveled, and increases the difficulty of dyeing. Therefore, a two-bath two-step dyeing process can be selected for a disperse dye/reactive dye dip dyeing process of cotton/polyester blended fabrics in a common dyeing mill, and the process is complex, complex to operate and high in cost.
Therefore, a new solution is needed to solve this problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an efficient dyeing process for cotton-polyester blended fabric.
The technical purpose of the invention is realized by the following technical scheme: an efficient dyeing process for cotton-polyester blended fabric comprises the following steps:
s1 selecting a fabric, selecting a T/C fabric or a CVC fabric as a gray fabric, checking that no obvious defects exist on the surface of the gray fabric, and then performing pre-setting by hot air;
s2 dye ingredients, wherein the dyes are sequentially mixed according to the type of gray fabric, and the formula of the dyes comprises the following components:
2% owf of dye mixture;
5g/L of soda ash;
0.5g/L of the integrating agent;
0.5g/L of a dispersing and leveling agent;
water;
s3, dyeing, namely, putting the gray fabric into a dyeing machine, adding the proportioned dye into the dyeing machine according to a bath ratio, operating for 20min, heating to 130 ℃, and operating for 40 min;
s4, preparing an alkaline agent, uniformly mixing anhydrous sodium sulphate and soda ash, directly adding into a dyeing machine after dyeing is finished, and running for 20 min;
s5, cooling and re-dyeing, namely after the grey cloth is subjected to dyeing operation and the temperature is raised to 130 ℃, carrying out constant temperature operation for 40min, cooling at a constant speed to 80 ℃, and carrying out constant temperature operation for 20 min;
s6, fixing color at constant temperature, cooling to 60 ℃ after cooling and re-dyeing, and keeping the temperature for 20-40min for fixing color;
s7, cleaning, discharging the solution in the dyeing machine after constant temperature color fixation, and adding a washing assistant for neutralization rinsing;
and S8 discharging.
By adopting the technical scheme, when the polyester-cotton mixed fabric is dyed and finished, the process carries out color matching and mixing operation on disperse dye and reactive dye according to the proportion of polyester and cotton in T/C fabric or CVC fabric, and the proportion of the disperse dye and the reactive dye is adjusted according to the component ratio of the polyester and the cotton, so that the polyester blended fabric is uniformly dyed, the comprehensive dyeing depth is 2% owf, the dye consumption can be saved while the polyester and the cotton are uniformly dyed, the process firstly runs for 20min when the dye is put into contact with grey cloth, the dye and the grey cloth can be fully soaked, then the temperature is raised to 130 ℃ for 20min, the disperse dye in the mixed dye can be fully dip-dyed under the action of high temperature and high pressure, then alkaline agent is prepared, after the high-temperature dyeing is finished, the pH value of the dye is adjusted, and the temperature is reduced and the fabric is dyed again, the reactive dye can dye the cotton component part in the grey cloth at the temperature of 80 ℃, so that the polyester-cotton blended fabric can be efficiently dyed in one bath, the problem that the polyester component and the cotton component part are dyed and washed in steps in the traditional process to cause water resource waste is solved, and the continuous dyeing can shorten the steps of the dyeing process, thereby improving the dyeing efficiency of the polyester-cotton blended fabric and having good color fastness.
The invention is further configured to: the dye mixture comprises a disperse dye and a reactive dye, and the mass ratio of the disperse dye to the reactive dye is the same as the ratio of terylene to cotton in the grey cloth.
By adopting the technical scheme, the proportion of the disperse dye and the reactive dye in the dye mixture to the proportion of the terylene and the cotton is the same, so that the change of the terylene and cotton components in the grey cloth can be improved, and the dyeing uniformity of the blended fabric can be improved.
The invention is further configured to: the specific steps of the cleaning comprise:
s71, performing peracid soaping, namely adding a cylinder of clear water after discharging the solution in the dyeing machine, adding dyeing acid for peracid for 10min, and directly adding soaping liquid for soaping neutralization;
s72, reducing and cleaning, namely adding a reducing cleaning agent for cleaning in the soaping neutralization process;
s73, washing and finishing, draining the solution in the dyeing machine, adding a cylinder of clear water, adding the finishing auxiliary agent, running for 20min, and dehydrating.
By adopting the technical scheme, in the cleaning process, firstly, a peracid soaping process is adopted, clear water and dyeing acid are added after the solution in the dyeing machine is drained for peracid treatment, the residual dye on the surface of the grey cloth can be cleaned, then, low-concentration reduction cleaning is carried out, the floating color on the surface of the grey cloth can be further bleached, and in the water washing finishing process, clear water and a post-finishing auxiliary agent are added, so that the characteristics of softness and the like of the grey cloth can be improved through the subsequent finishing auxiliary agent after dyeing is finished.
The invention is further configured to: the dye mixture is used for dyeing and finishing the CVC fabric according to the following ratio:
disperse dye 0.8% owf;
reactive dye 1.2% owf;
the dye mixture is used for dyeing and finishing the T/C fabric according to the following mixture ratio:
disperse dye 1.2% owf;
reactive dye 0.8% owf;
the reactive dye is vinyl sulfone type or monochlorotriazine type dye, the color system of the reactive dye comprises reactive red RHS, reactive navy blue RHS, reactive red CD, reactive orange CD, reactive navy blue CD and reactive blue 2GF, the disperse dye is medium-temperature type or high-temperature type dye, and the color system of the disperse dye for color matching comprises disperse red S-BR, disperse yellow brown S-2RFL and disperse navy blue S-2 GRL.
By adopting the technical scheme, the disperse dyes and the reactive dyes with similar color systems are selected, so that the condition of mottle mixing and color mixing of the blended fabric during color matching dyeing and finishing can be reduced, and the dip dyeing of the reactive dyes and the disperse dyes on terylene and cotton materials can be improved at the temperature of 130 ℃ by adopting the vinyl sulfone type or monochloro-s-triazine type dyes and the medium-temperature type or high-temperature type dyes.
The invention is further configured to: the soaping liquid adopts polyester type soaping agent WWRC, the content of the soaping liquid is 8g/L, the components of the reduction cleaning agent comprise 3g/L of sodium hydrosulfite and 2g/L of caustic soda, and the bath ratio of the soaping agent to the reduction cleaning agent is 1: 10.
By adopting the technical scheme, the polyester soaping agent WWRC is sequentially subjected to the cleaning by the bath ratio of 1:10, and the low-concentration sodium hydrosulfite and the caustic soda are selected for cleaning, so that the residual dye on the surface of the grey cloth can be effectively washed away, the cleaning efficiency is good, and the water consumption in cleaning is saved.
The invention is further configured to: the specific steps of the dyeing method further comprise: soaking the grey cloth and putting into a dyeing machine, then injecting the dye after color matching, adjusting the pH value of a dye bath of the grey cloth to be 5-5.5, heating the solution in the dyeing machine to 130 ℃ at the speed of 2 ℃/min, and simultaneously pressurizing to 2 standard atmospheric pressures.
By adopting the technical scheme, in the color matching dyeing and finishing process, the PH value is 5-5.5, the temperature is raised at a constant speed at the speed of 2 ℃/min, the gray fabric can be dip-dyed gradually in the temperature raising process, the good dye uptake is good, and under the action of 2 standard atmospheric pressures, when the temperature of the dye is continuously raised, the boiling point of the dye can be improved by increasing the internal atmospheric pressure, when the dye is close to boiling, the temperature of the dye can be judged to be close to 130 ℃, so that the step of frequently checking a temperature instrument by a person is omitted, and meanwhile, the permeation of the dye to the fabric can be improved under the conditions of high temperature and high pressure.
In conclusion, the invention has the following beneficial effects:
when dyeing and finishing a polyester-cotton mixed fabric, the process carries out color matching and mixing operation on a disperse dye and a reactive dye according to the proportion of polyester and cotton in a T/C fabric or a CVC fabric, and the proportion of the disperse dye and the reactive dye is adjusted according to the component ratio of the polyester and the cotton, so that the polyester blended fabric is uniformly dyed, the comprehensive dyeing depth is 2% owf, the use amount of the dye can be saved while the polyester and the cotton are uniformly dyed, when the dye is put into a dyeing machine to be contacted with grey cloth, the dyeing machine firstly runs for 20min to fully soak the dye and the grey cloth, then the dyeing machine runs for 20min after heating to 130 ℃, the disperse dye in the mixed dye can be fully dip-dyed under the action of high temperature and high pressure, then an alkaline agent is prepared, after the high-temperature dyeing is finished, the pH value of the dye is adjusted, and the dyeing machine simultaneously cools and then dyes the cotton component in the grey cloth under the temperature condition of 80 ℃ by the reactive dye, the efficient dye-uptake of the polyester-cotton blended fabric is realized in the one-bath process, the problem that water resources are wasted due to the fact that polyester components and cotton components are required to be dyed and washed in steps in the traditional process is solved, and the steps of the dyeing process can be shortened through continuous dye-uptake, so that the dyeing efficiency of the polyester-cotton blended fabric is improved, and the polyester-cotton blended fabric has good color fastness.
Drawings
FIG. 1 is a process flow diagram of a traditional polyester-cotton blended fabric dyeing and finishing process;
FIG. 2 is a process flow diagram of the present invention.
Detailed Description
The invention is described in detail below with reference to the figures and examples.
An efficient dyeing process for cotton-polyester blended fabric comprises the following steps:
s1 selecting a fabric, selecting a T/C fabric or a CVC fabric as a gray fabric, checking that no obvious defects exist on the surface of the gray fabric, and then performing pre-setting by hot air;
s2 dye ingredients, wherein the dyes are sequentially mixed according to the type of the grey cloth, and the formula of the dyes comprises the following components:
2% owf of dye mixture;
5g/L of soda ash;
0.5g/L of the integrating agent;
0.5g/L of a dispersing and leveling agent;
water;
the dye mixture comprises a disperse dye and a reactive dye, the mass ratio of the disperse dye to the reactive dye is the same as the ratio of terylene to cotton in the grey cloth, and the specific ratio of the dye mixture to the dyeing and finishing CVC fabric is as follows: disperse dye 0.8% owf, reactive dye 1.2% owf; the proportion of the dye mixture used for dyeing and finishing the T/C fabric is as follows: 1.2% owf of disperse dye, 0.8% owf of reactive dye;
s3, dyeing, namely, putting the gray fabric into a dyeing machine, adding the proportioned dye into the dyeing machine according to a bath ratio, operating for 20min, heating to 130 ℃, and operating for 40 min;
s4, preparing an alkaline agent, uniformly mixing anhydrous sodium sulphate and soda ash, directly adding into a dyeing machine after dyeing is finished, and running for 20 min;
s5, cooling and re-dyeing, namely after the grey cloth is subjected to dyeing operation, heating to 130 ℃, carrying out constant temperature operation for 40min, cooling at a constant speed to 80 ℃, and carrying out constant temperature operation for 20 min;
s6, fixing color at constant temperature, cooling to 60 ℃ after cooling and re-dyeing, and keeping the temperature for 20-40min for fixing color;
s7, cleaning, discharging the solution in the dyeing machine after constant temperature color fixation, and adding a washing assistant for neutralization rinsing;
and S8 discharging.
The reactive dye is vinyl sulfone type or monochlorotriazine type dye, the color system of the reactive dye comprises reactive red RHS, reactive navy blue RHS, reactive red CD, reactive orange CD, reactive navy blue CD and reactive blue 2GF, the disperse dye is medium-temperature type or high-temperature type dye, and the color system of the disperse dye for color matching comprises disperse red S-BR, disperse yellow brown S-2RFL and disperse navy blue S-2 GRL.
The specific step of the cleaning in step S7 includes:
s71, performing peracid soaping, namely, draining the solution in the dyeing machine, adding a cylinder of clear water, adding dyeing acid for 10min, and directly adding soaping liquid for soaping neutralization, wherein the dyeing acid in the peracid soaping step comprises tartaric acid, citric acid and mercaptoacetic acid, and the component ratio of the tartaric acid, the citric acid and the mercaptoacetic acid is as follows: 1:1:2, wherein the soaping liquid adopts polyester soaping agent WWRC, and the content of the soaping liquid is 8 g/L;
s72, reducing and cleaning, namely adding a reducing cleaning agent for cleaning in the soaping neutralization process, wherein the reducing cleaning agent comprises 3g/L sodium hydrosulfite and 2g/L caustic soda, and the bath ratio of the soaping agent to the reducing cleaning agent is 1: 10;
s73, washing and finishing, draining the solution in the dyeing machine, adding a cylinder of clear water, adding the finishing auxiliary agent, running for 20min, and dehydrating.
Wherein, the dyeing method also comprises the following specific steps: soaking the grey cloth and putting into a dyeing machine, then injecting the dye after color matching, adjusting the pH value of a dye bath of the grey cloth to be 5-5.5, heating the solution in the dyeing machine to 130 ℃ at the speed of 2 ℃/min, and simultaneously pressurizing to 2 standard atmospheric pressures.
Specifically, according to a univariate experiment treatment method, a combined color matching experiment is respectively carried out on active red RHS, active navy blue RHS, active red CD, active orange CD, active navy blue CD, active blue 2GF, disperse red S-BR, disperse yellow brown S-2RFL and disperse navy blue S-2GRL, finished cloth obtained after dyeing and finishing is prepared, for example, the active red RHS is sequentially matched with the disperse red S-BR, the disperse yellow brown S-2RFL and the disperse navy blue S-2GRL, the proportion is carried out according to the component ratio of the adopted gray fabric, the dyeing concentration is controlled to be 2% owf, the cloth is compared with the traditional process shown in figure 1, samples are sampled and divided into a plurality of samples with the specification of 100mm x 40mm, and the K/S values of the active dye and the disperse dye in two groups of dyeing processes are tested.
Then testing according to GB/T3920-2008 textile color fastness to soaping test, reserving a sample in the same cylinder as a sample color, and respectively washing by soaping, reduction washing, soaping and reduction washing, wherein the specific flow is as follows: adding 10 small steel balls into the cup, and simultaneously injecting a required amount of cleaning solution preheated to the test temperature of 60 ℃ into the soaping steel cup, wherein the bath ratio is 10: 1, covering a container, putting the container into a machine, running for 45min, taking out a sample after soaping, respectively putting the sample into distilled water, washing the sample twice, then washing the sample in tap water, hanging the sample in air at a temperature of not more than 60 ℃ for drying, finally carrying out color comparison by using a standard gray card, and grading the soaping fastness.
The test results are as follows:
the soaping fastness cleaning effect was compared as follows:
in summary, the following steps: the dyeing and finishing process of this application can be when the color matching dyeing and finishing to the common not same proportion's of polyester-cotton blending fabric, when guaranteeing grey cloth tinting strength, when having practiced thrift step in the traditional handicraft and having dyed component and cotton component, adopt the mode of synchronous mixed color matching, the very big process of having shortened the blending fabric dyeing and finishing is long, and simultaneously, because the continuous income of integration is dyed and is washd, required steam in the traditional handicraft has been reduced, the total amount of power consumption and water, it is more energy-concerving and environment-protective, and the use and the pollution of water resource have been reduced, and in the cleaning process, synthesize soaping and restore abluent mode, improve the comprehensive soaping fastness of polyester-cotton blending fabric.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (7)
1. A high-efficiency dyeing process for cotton-polyester blended fabric is characterized by comprising the following steps: the method comprises the following steps:
s1 selecting a fabric, selecting a T/C fabric or a CVC fabric as a gray fabric, checking that no obvious defects exist on the surface of the gray fabric, and then performing pre-setting by hot air;
s2 dye ingredients, wherein the dyes are sequentially mixed according to the type of gray fabric, and the formula of the dyes comprises the following components:
2% owf of dye mixture;
5g/L of soda ash;
0.5g/L of the integrating agent;
0.5g/L of a dispersing and leveling agent;
water;
s3, dyeing, namely, putting the gray fabric into a dyeing machine, adding the proportioned dye into the dyeing machine according to a bath ratio, operating for 20min, heating to 130 ℃, and operating for 40 min;
s4, preparing an alkaline agent, uniformly mixing anhydrous sodium sulphate and soda ash, directly adding into a dyeing machine after dyeing is finished, and running for 20 min;
s5, cooling and re-dyeing, namely after the grey cloth is subjected to dyeing operation and the temperature is raised to 130 ℃, carrying out constant temperature operation for 40min, cooling at a constant speed to 80 ℃, and carrying out constant temperature operation for 20 min;
s6, fixing color at constant temperature, cooling to 60 ℃ after cooling and re-dyeing, and keeping the temperature for 20-40min for fixing color;
s7, cleaning, discharging the solution in the dyeing machine after constant temperature color fixation, and adding a washing assistant for neutralization rinsing;
and S8 discharging.
2. The efficient dyeing process of the cotton-polyester blended fabric according to claim 1, characterized in that: the dye mixture comprises a disperse dye and a reactive dye, and the mass ratio of the disperse dye to the reactive dye is the same as the ratio of terylene to cotton in the grey cloth.
3. The efficient dyeing process of the cotton-polyester blended fabric according to claim 1, characterized in that: the specific steps of the cleaning comprise:
s71, performing peracid soaping, namely adding a cylinder of clear water after discharging the solution in the dyeing machine, adding dyeing acid for peracid for 10min, and directly adding soaping liquid for soaping neutralization;
s72, reducing and cleaning, namely adding a reducing cleaning agent for cleaning in the soaping neutralization process;
s73 washing and finishing, discharging the solution in the dyeing machine, adding a cylinder of clean water and adding a finishing auxiliary agent, running for 20min, and dehydrating.
4. The efficient dyeing process of the cotton-polyester blended fabric according to claim 1, characterized in that: the dye mixture is used for dyeing and finishing the CVC fabric according to the following ratio:
disperse dye 0.8% owf;
reactive dye 1.2% owf;
the dye mixture is used for dyeing and finishing the T/C fabric according to the following mixture ratio:
disperse dye 1.2% owf;
reactive dye 0.8% owf;
the reactive dye is vinyl sulfone type or monochlorotriazine type dye, the color system of the reactive dye comprises reactive red RHS, reactive navy blue RHS, reactive red CD, reactive orange CD, reactive navy blue CD and reactive blue 2GF, the disperse dye is medium-temperature type or high-temperature type dye, and the color system of the disperse dye for color matching comprises disperse red S-BR, disperse yellow brown S-2RFL and disperse navy blue S-2 GRL.
5. The efficient dyeing process of the cotton-polyester blended fabric according to claim 3, characterized in that: the soap cleaning solution is polyester type soap cleaning agent WWRC, the content of the soap cleaning solution is 8g/L, the components of the reduction cleaning agent comprise sodium hydrosulfite 3g/L and caustic soda 2g/L, and the bath ratio of the soap cleaning agent to the reduction cleaning agent is 1: 10.
6. The efficient dyeing process of the cotton-polyester blended fabric according to claim 1, characterized in that: the specific steps of the dyeing method further comprise: soaking the grey cloth and putting into a dyeing machine, then injecting the dye after color matching, adjusting the pH value of a dye bath of the grey cloth to be 5-5.5, heating the solution in the dyeing machine to 130 ℃ at the speed of 2 ℃/min, and simultaneously pressurizing to 2 standard atmospheric pressures.
7. The efficient dyeing process of the cotton-polyester blended fabric according to claim 3, characterized in that: the dyeing acid in the peracid soaping step comprises tartaric acid, citric acid and mercaptoacetic acid, wherein the component ratio of the tartaric acid to the citric acid to the mercaptoacetic acid is as follows: 1:1:2.
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| CN116180470A (en) * | 2023-03-14 | 2023-05-30 | 湖北富春染织有限公司 | Reactive dye one-bath dyeing process for textile fabric |
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