CN109667164A - Shorten the salt-free low-alkali dyeing method of reactive dyeing time - Google Patents

Shorten the salt-free low-alkali dyeing method of reactive dyeing time Download PDF

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Publication number
CN109667164A
CN109667164A CN201710955502.3A CN201710955502A CN109667164A CN 109667164 A CN109667164 A CN 109667164A CN 201710955502 A CN201710955502 A CN 201710955502A CN 109667164 A CN109667164 A CN 109667164A
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dyeing
textile
reactive
dye
salt
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周静
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Yuyao Rongxin Mao Ma Products Factory
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Yuyao Rongxin Mao Ma Products Factory
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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
    • 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
    • D06P1/445—Use of auxiliary substances before, during or after dyeing or printing
    • 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
    • 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
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose
    • D06P3/66—Natural or regenerated cellulose using reactive dyes

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Coloring (AREA)

Abstract

The present invention relates to the salt-free low-alkali dyeing methods for shortening the reactive dyeing time, belong to technical field of textile printing.The present invention changes the preparation of dye liquor and process route in traditional dyeing process, using the textile to be dyed for having lye to be placed in the method dyed in the dye liquor that high proportion alcohol organic solvent and a small amount of water and dyestuff mix, the problem of traditional exhaust process dyeing time of very good solution is longer and color fixing agent is insoluble in organic solvent, high degree shortens the exhaust dyeing time of textile, realizes the salt-free dyeing of textile and reduces the dosage of fixation alkaline agent.Colouring method of the invention, not only simple process, degree of fixation height, dyeing effect and good color fastness, but also greatly reduce the dosage of water and effectively reduce the dosage of chemical assistant, alcohol organic solvent can recycle, pollute small, at low cost, clean energy-saving, safety and environmental protection.

Description

Shorten the salt-free low-alkali dyeing method of reactive dyeing time
Technical field
The present invention relates to the salt-free low-alkali dyeing methods for shortening the reactive dyeing time, belong to textile printing and dyeing technology neck Domain.
Background technique
Reactive dye are a kind of important dyestuffs for being widely used in cellulose fiber textile dyeing, it have it is bright in colour, Chromatography is complete, color fastness excellent the features such as.But reactive dye are low to the substantivity of cellulose fibre, when dyeing cotton fabric, deposits In the low problem of dye-uptake.Therefore, in traditional dyeing, a large amount of inorganic salts must be added and carry out rush dye.When dyeing After journey, these inorganic salts are discharged as the component part of dyeing waste-water, cause the pollution at water source, and high salinity is printed and dyed The discharge of waste water can destroy the ecological environment of water again, and the high osmosis of salinity will lead to the water quality salinization of soil around rivers and lakes, thus Reduce the yield of crops；Due to containing a large amount of pigment in dyeing residual liquid, washing needs a large amount of water after dyeing, also will increase The burden of sewage treatment.In addition, dyeing also annoyings always dyeing with water.When moreover, due to reactive dyestuffs in exhaustion Dyeing time it is longer, energy consumption is also very serious.Therefore, it has no water or little water dyeing and improves the utilization rate and reduction of reactive dye Salt dosage and dyeing time when dyeing are always that people expect to solve the problems, such as.
With the progress of science and technology and the enhancing of people's environmental consciousness, some novel environmentally friendly colouring methods have become The emphasis of research.
Open magazine " weaving Leader ", 2011 publication dates entitled " current research of less salt, salt-free dyeing of o. 11th Progress " in have studied the latest developments of low-salt and salt-free dyes, although from reactive dye, for salt assitant, method for modifying fibers and New process, New technical use elaborate the colouring method of low-salt and salt-free dyes in four aspects such as low salt dyeing.But no Foot place is that these methods have certain limitation, and complex.
Open magazine " new technology in rural areas ", the 6th phase of 2008 publication dates entitled " the enzymatic degumming skill of bast fibre spinning raw material Art " in refer to biological enzyme --- chemical combined method for degumming to fiber crops carries out degumming, although it use first with biological enzyme to fiber crops Pre-processed the method for carrying out degumming to it with chemical reagent again play really degumming thoroughly and protection environmental activity.But It is that shortcoming is that the process conditions of this method are complicated, it is difficult to be controlled.
Open magazine " textile science research ", 2007 publication dates the 4th phase entitled " salt-free dyeing of modified cotton fabric Method " in refer to the salt-free dyeing method of modified cotton fabric a kind of, although it use with opening polyepichlorohydrin amine compound It is modified the method dyed again to cotton fabric and plays the possibility for realizing salt-free dyeing really.But shortcoming is this Method needs to be modified cotton fabric using special modification liquid.
Open magazine " dyestuff and dyeing ", 2 months the 1st phases of volume 49 of 2012 publication dates entitled " cotton with active dye Expect salt-free, non-alkali dyeing technical study " in have studied the salt-free non-alkali dyeing of Dyeing of Cotton Fabric with Reactive Dyes, although it use first to cotton Fabric carries out cation-modified method really and salt-free non-alkali dyeing may be implemented.But disadvantage is that this method energy Enough practical dyestuffs are limited, have certain limitation.
Chinese patent application publication No. CN102174748A, 2011 Shen Qing Publication dates September 7th, the name of innovation and creation Referred to as a kind of salt-free dyeing method of vinyl sulphone type reactive dye for cotton fiber, this application disclose a kind of salt-free dyeing method. Although its use is first modified the method dyed again to cotton fabric and salt-free dyeing may be implemented really, its shortcoming is This method needs are first modified cotton fabric, and the process is more complicated, and this modified technique is only suitable for Vinyl-Sulfone Type and lives Property dyestuff, narrow scope of application.
Chinese patent application publication No. CN102677489A, 2012 Shen Qing Publication dates September 19th, the name of innovation and creation Referred to as a kind of cotton fabric dyeing process method that is effectively water-saving, subtracting dirt, high color fastness, this application discloses a kind of salt-free sections of cotton fabric The colouring method of water.Although it changes the method that cotton fabric dyes again using cationic protein derivatives auxiliary agent has centainly really Effect, but disadvantage is that this method is equally first modified cotton fabric, and do not subtract largely The dosage of water is lacked.
Chinese patent application publication No. CN102899929A, January 30 2013 Shen Qing Publication date, the name of innovation and creation Referred to as a kind of processing method of reactive dye salt-free dyeing, carries out cotton fabric using organic solvent this application discloses a kind of The method of dyeing.Although the method using organic solvent dyeing that it is used can play the role of salt-free dyeing really, its Shortcoming is that this method is first to dye fixation again, does not solve the problems, such as that the reactive dyestuffs in exhaustion time is long fundamentally, and There are problems that certain insufficient dissolution in organic solvent in the soda ash that the fixation stage is added, to influence dyeing product Quality.
Chinese patent application publication No. CN103243584A, 2013 Shen Qing Publication dates August 14th, the name of innovation and creation Referred to as a kind of reactive dye salt-free dyeing method dyes cotton fabric using organic solvent this application discloses a kind of Method.Although what it was used first carries out the method that pre-swollen recycles organic solvent to dye cotton fabric to cotton fabric with water Really salt-free dyeing can be played, but its shortcoming is still without fundamentally solving reactive dyestuffs in exhaustion dyeing time length Problem, not only water consumption is larger but also all exists in organic solvent in the soda ash aqueous solution of fixation stage addition or solid-state soda ash The problem of certain insufficient dissolution, cause fixation irregular, to influence the quality of dyeing product.
Chinese patent application publication No. CN103266507A, 2013 Shen Qing Publication dates August 28th, the name of innovation and creation The reactive dye cosolvent colouring method of referred to as a kind of cellulosic fabric, this application discloses a kind of using organic solvent to cotton The method that fabric is dyed.Although the method that organic solvent is added portionwise that it is used can control dye to a certain extent really The dye-uptake and level-dyeing property of material, but still without fundamentally solving, reactive dyestuffs in exhaustion dyeing time is long to ask its shortcoming Topic, not only complex process and due to the volatilization of organic solvent so that being not easily controlled the problem of organic solvent amount is added portionwise.
Summary of the invention
In view of the above-mentioned problems, in order to largely reduce the dosage of reactive dyeing time and water, salt and alkali, this Invention be designed to provide a kind of use by the textile with lye be placed in high proportion alcohol organic solvent and a small amount of water with The method of salt-free low alkali dyeing is carried out in the dye liquor that reactive dye mix.
To achieve the goals above, technical solution of the invention are as follows:
Shorten the salt-free low-alkali dyeing method of reactive dyeing time, the colouring method sequentially includes the following steps:
A prepares lye:
Alkaline agent, levelling agent, bleeding agent and water are mixed, stirs evenly and is configured to lye, wherein the bath raio of lye is 1:2 ~1:20, the concentration of alkaline agent are 1~30g/L, and the concentration of levelling agent is 1~5g/L, and the concentration of bleeding agent is 1~5g/L；
B textile base extraction:
Textile to be dyed is placed in the lye prepared through a step and is carried out at steeping liquor processing or alkali immerging Reason, the liquid carrying rate of textile is 50%~100% after processing；
C prepares dye liquor:
Reactive dye are placed in the mixed liquor of alcohol organic solvent and water, are configured to dye liquor after mixing evenly, wherein dye The bath raio of liquid is 1:5~1:30, and alcohol organic solvent and the volume ratio of water are 90%:10%~95%:5%, activity in dye liquor The concentration of dyestuff is the 0.1%~10% of quality of textile products；
D dyeing:
By in the dye liquor through b step treated textile is placed in step c preparation, the initial temperature of dye liquor is 20~90 DEG C, then dye liquor is warming up to 40~90 DEG C to textile dyeing with 0~3 DEG C/min of heating rate, wherein dyeing time is It is 10~60 minutes, washed, soap, wash and dry after textile dyeing is complete, obtain finished product.
The alkaline agent is soda ash or sodium bicarbonate or one of caustic soda or substitute alkali.
The textile is one of cotton textiles or linen textile.
The alcohol organic solvent is one of ethyl alcohol or isopropanol.
The reactive dye are a chloro-s-triazine type reactive dye or dichloro s-triazine type reactive dye or Vinyl-Sulfone Type One of reactive dye or double activated fundamental mode reactive dye.
The cotton textiles are cotton staple in bulk or cotton or sliver or one of cotton fabric or cotton nonwoven fabrics.
Due to using above technical scheme, technical characterstic of the invention is: technical method of the invention changes biography The preparation of dye liquor and process route in system dyeing, are placed in high proportion alcohols using by the textile to be dyed with lye The method dyed in the dye liquor that organic solvent and a small amount of water and dyestuff mix, when the textile for carrying lye is placed in dye After liquid, due to textile in a high proportion of alcohol organic solvent extraordinary wetability so that dyestuff is when very short Interior to give up dye liquor to fibre migration, when dyestuff enters fibrous inside, these dyestuffs are fast under the alkaline agent entrained by fiber The related group with fiber molecule of speed react to form Covalent bonding together and it is fixed in the fibre.These fixed dyestuff meetings Cause fiber is inside and outside to form concentration difference, so that dyestuff continues to spread into fiber.This constantly upper dye and continuous fixation Circulation so that entire dyeing time substantially reduces, to largely shorten the exhaust dyeing time.In addition, due to alkaline agent Always it is adsorbed on fiber surface, so, good level-dyeing property high-efficient in fixation, and the later period does not have to add fixation alkaline agent, significantly Reduce the dosage of alkaline agent.This upper dye is constantly intersected with fixation and ongoing mode substantially increases dye-uptake, by The presence of hydrogen bond in high proportion alcohol organic solvent, so that being generated between negative electrical charge existing for dye anion and fiber surface Coulomb repulsion substantially reduce, in this case, dyestuff is constantly close to fiber, and as the distance of dyestuff and fiber is continuous Reduce, playing the hydrogen bond of combination and Van der Waals force in dyestuff and fiber surface can increase rapidly, to constantly promote on dyestuff Fiber is contaminated, therefore, in entire dyeing course, not needing to increase any auxiliary agent just can reach good dyeing effect.Very well Solve the problems, such as that traditional exhaust process dyeing time is longer and color fixing agent is insoluble in organic solvent, high degree shortens spinning The exhaust dyeing time of fabric realizes the salt-free dyeing of textile and reduces the dosage of fixation alkaline agent.
Colouring method of the invention, not only simple process, degree of fixation are high, dyeing effect and good color fastness, but also subtract significantly Lacked and the dosage of water and effectively reduced the dosage of chemical assistant, alcohol organic solvent can recycle, pollute it is small, at This low, clean energy-saving, safety and environmental protection.
Specific embodiment
The present invention is specifically described combined with specific embodiments below.
Shorten the salt-free low-alkali dyeing method of reactive dyeing time, textile to be dyed is cotton textiles or bast fibre spinning One of fabric.Specific step is as follows for the salt-free low-alkali dyeing method of present invention shortening reactive dyeing time:
A prepares lye
Alkaline agent, levelling agent, bleeding agent are placed in water, are configured to lye after mixing evenly, wherein the bath raio of lye is 1: 2~1:20, the concentration of alkaline agent are 1~30g/L, and the concentration of levelling agent is 1~5g/L, and the concentration of bleeding agent is 1~5g/L, alkaline agent For soda ash or sodium bicarbonate or one of caustic soda or substitute alkali；
B textile base extraction
Textile to be dyed is placed in the lye prepared through a step and is carried out at steeping liquor processing or alkali immerging Reason, the liquid carrying rate of textile is 50%~100% after processing, and steeping liquor processing, which refers to, is immersed in alkali for textile to be dyed In liquid, centrifugal treating then is carried out to the textile after steeping liquor, wherein dipping temperature is 20~60 DEG C, dip time 5 ~20 minutes, alkali immerging processing, which refers to, to be carried out padding machine used for textiles to be dyed to pad dye liquor processing, wherein pads number For an immersing and rolling or second dipping and rolling；
C prepares dye liquor
Reactive dye are placed in the mixed liquor of alcohol organic solvent and water, are configured to dye liquor after mixing evenly, wherein dye The bath raio of liquid is 1:5~1:30, and alcohol organic solvent and the volume ratio of water are 90%:10%~95%:5%, activity in dye liquor The concentration of dyestuff is the 0.1%~10% of quality of textile products, and reactive dye are a chloro-s-triazine type reactive dye or dichloro equal three One of piperazine type reactive dye or vinyl-sulfone reactive dyes or double activated fundamental mode reactive dye, alcohol organic solvent is ethyl alcohol Or one of isopropanol；
D dyeing
By in the dye liquor through b step treated textile is placed in step c preparation, the initial temperature of dye liquor is 20~90 DEG C, then dye liquor is warming up to 40~90 DEG C to textile dyeing with 0~3 DEG C/min of heating rate, wherein dyeing time is It is 10~60 minutes, washed, soap, wash and dry after textile dyeing is complete, obtain finished product.
Specific embodiment
Embodiment one:
By above-mentioned processing step: selecting 5g cotton fabric as textile to be dyed, alcohol organic solvent is selected as ethyl alcohol, alkali Soda ash is selected as in agent.Soda ash, levelling agent, bleeding agent are placed in water, are configured to lye after mixing evenly, wherein the bath raio of lye For 1:10, the concentration of soda ash is 3g/L, and the concentration of levelling agent is 5g/L, and the concentration of bleeding agent is 5g/L.Cotton to be dyed is knitted Object is placed in progress steeping liquor processing in lye, and the liquid carrying rate of cotton fabric is 100% after processing, wherein and dipping temperature is 20 DEG C, Dip time is 5 minutes, and a chloro-s-triazine type reactive dye are placed in the mixed liquor of second alcohol and water, are configured to after mixing evenly Dye liquor, wherein the bath raio of dye liquor is 1:10, and the volume ratio of second alcohol and water is 90%:10%, a chloro-s-triazine type activity in dye liquor The concentration of dyestuff is the 5% of cotton fabric quality, the cotton fabric after base extraction is placed in dye liquor, the initial temperature of dye liquor is 60 DEG C, then dye liquor is warming up to 80 DEG C to cotton fabric dyeing process with 3 DEG C/min of heating rate, wherein dyeing time is 30 points Clock, it is washed, soap, wash and dry after cotton fabric dyeing process is complete, obtain finished product.
The embodiment of the present invention and the experimental result of use pure water conventional dyeing process are as follows:
From experimental result correlation data it is found that dyeing through the method for the present invention to textile, dyeing time shortens, alkali Dosage reduces, and degree of fixation and color fastness improve.
Embodiment two:
By above-mentioned processing step: select 5g cotton as textile to be dyed, alcohol organic solvent is selected as isopropanol, Alkaline agent is selected as sodium bicarbonate.Sodium bicarbonate is placed in water, is configured to lye after mixing evenly, wherein the bath raio of lye is 1:20, small The concentration of soda is 10g/L, and cotton to be dyed is placed in lye and carries out one bundle alkali immerging processing of a leaching, is spun after processing The liquid carrying rate of fabric is 50%, dichloro s-triazine type reactive dye is placed in the mixed liquor of isopropyl alcohol and water, after mixing evenly It is configured to dye liquor, wherein the bath raio of dye liquor is 1:30, and the volume ratio of isopropyl alcohol and water is 95%:5%, reactive dye in dye liquor Concentration be the 3% of quality of textile products, the cotton after base extraction is placed in dye liquor, the initial temperature of dye liquor is 60 DEG C, then dye liquor is warming up to 60 DEG C with 0 DEG C/min of heating rate and dyes to cotton, wherein and dyeing time is 20 minutes, It is washed, soap, wash and dry after cotton has dyed, obtain finished product.
The embodiment of the present invention and the experimental result of use pure water conventional dyeing process are as follows:
From experimental result correlation data it is found that dyeing through the method for the present invention to textile, dyeing time shortens, alkali Dosage reduces, and degree of fixation and color fastness improve.
Embodiment three:
By above-mentioned processing step: select 5g cotton staple in bulk as textile to be dyed, alcohol organic solvent is selected as ethyl alcohol, Alkaline agent is selected as caustic soda, and caustic soda, levelling agent, bleeding agent are placed in water, are configured to lye after mixing evenly, wherein the bath of lye Than being 1g/L for the concentration of 1:5, alkaline agent, the concentration of levelling agent is 1g/L, and the concentration of bleeding agent is 1g/L, and cotton to be dyed is dissipated Fiber is placed in progress steeping liquor processing in lye, and the liquid carrying rate of textile is 80% after processing, by vinyl-sulfone reactive dyes It is placed in the mixed liquor of second alcohol and water, is configured to dye liquor after mixing evenly, wherein the bath raio of dye liquor is 1:20, ethyl alcohol in dye liquor Volume ratio with water is 95%:5%, and the concentration of reactive dye is the 1% of quality of textile products, and the cotton after base extraction is dissipated fibre Dimension is placed in dye liquor, and the dyeing temperature of dye liquor is 90 DEG C, wherein dyeing time is 10 minutes, after cotton loose stock dyeing is complete, through washing It washs, soap, wash and dries, obtain finished product.
The embodiment of the present invention and the experimental result of use pure water conventional dyeing process are as follows:
From experimental result correlation data it is found that dyeing through the method for the present invention to textile, dyeing time shortens, alkali Dosage reduces, and degree of fixation and color fastness improve.
Example IV:
By above-mentioned processing step: selecting 5g sliver as textile to be dyed, alcohol organic solvent is selected as isopropanol, alkali Substitute alkali is selected as in agent, and substitute alkali, levelling agent, bleeding agent are placed in water, are configured to lye after mixing evenly, wherein lye Bath raio is 1:15, and the concentration of alkaline agent is 5g/L, and the concentration of levelling agent is 5g/L, and the concentration of bleeding agent is 5g/L, will be to be dyed Sliver is placed in through carrying out second dipping and rolling base extraction in lye, and the liquid carrying rate of sliver is 80% after processing, and double activated fundamental mode is living Property dyestuff be placed in the mixed liquor of isopropyl alcohol and water, be configured to dye liquor after mixing evenly, wherein the bath raio of dye liquor be 1:30, dye The volume ratio of isopropyl alcohol and water is 90%:10% in liquid, and the concentration of double activated fundamental mode reactive dye is the 8% of quality of textile products, Sliver after base extraction is placed in dye liquor, the initial temperature of dye liquor is 40 DEG C, and then dye liquor is with 1 DEG C/min of heating Rate is warming up to 60 DEG C to textile dyeing, wherein dyeing time is 20 minutes, after sliver has dyed, washed, soap, wash It washs and dries, obtain finished product.
The embodiment of the present invention and the experimental result of use pure water conventional dyeing process are as follows:
From experimental result correlation data it is found that dyeing through the method for the present invention to textile, dyeing time shortens, alkali Dosage reduces, and degree of fixation and color fastness improve.
Embodiment five:
By above-mentioned processing step: select 5g linen textile as textile to be dyed, alcohol organic solvent is selected as ethyl alcohol, Alkaline agent is selected as soda ash, and soda ash is placed in water, and is configured to lye after mixing evenly, wherein the bath raio of lye is 1:10, alkaline agent Concentration is 20g/L, and linen textile to be dyed is placed in progress steeping liquor processing, the liquid carrying rate of textile after processing in lye It is 100%, double activated fundamental mode reactive dye is placed in the mixed liquor of second alcohol and water, are configured to dye liquor after mixing evenly, wherein The bath raio of dye liquor is 1:30, and the volume ratio of second alcohol and water is 92%:8% in dye liquor, and the concentration of reactive dye is quality of textile products 1%, the linen textile after base extraction is placed in dye liquor, the initial temperature of dye liquor is 20 DEG C, then dye liquor with 3 DEG C/ The heating rate of minute is warming up to 80 DEG C to textile dyeing, wherein and dyeing time is 40 minutes, after linen textile has dyed, It is washed, soap, wash and dry, obtain finished product.
The embodiment of the present invention and the experimental result of use pure water conventional dyeing process are as follows:
From experimental result correlation data it is found that dyeing through the method for the present invention to textile, dyeing time shortens, alkali Dosage reduces, and degree of fixation and color fastness improve.

Claims (6)

1. shortening the salt-free low-alkali dyeing method of reactive dyeing time, it is characterised in that: the colouring method presses following step It is rapid to carry out:
A prepares lye:
Alkaline agent, levelling agent, bleeding agent and water are mixed, stirs evenly and is configured to lye, wherein the bath raio of lye is 1:2~1: 20, the concentration of alkaline agent is 1~30g/L, and the concentration of levelling agent is 1~5g/L, and the concentration of bleeding agent is 1~5g/L；
B textile base extraction:
Textile to be dyed is placed in the lye prepared through a step and carries out steeping liquor processing or alkali immerging processing, place The liquid carrying rate of textile is 50%~100% after reason；
C prepares dye liquor:
Reactive dye are placed in the mixed liquor of alcohol organic solvent and water, are configured to dye liquor after mixing evenly, wherein dye liquor Bath raio is 1:5~1:30, and alcohol organic solvent and the volume ratio of water are 90%:10%~95%:5%, reactive dye in dye liquor Concentration be quality of textile products 0.1%~10%；
D dyeing:
By in the dye liquor through b step treated textile is placed in step c preparation, the initial temperature of dye liquor is 20~90 DEG C, so Dye liquor is warming up to 40~90 DEG C to textile dyeing with 0~3 DEG C/min of heating rate afterwards, wherein dyeing time is 10~60 Minute, it is washed, soap, wash and dry after textile dyeing is complete, obtain finished product.
2. shortening the salt-free low-alkali dyeing method of reactive dyeing time as described in claim 1, it is characterised in that: described Alkaline agent be soda ash or sodium bicarbonate or one of caustic soda or substitute alkali.
3. shortening the salt-free low-alkali dyeing method of reactive dyeing time as described in claim 1, it is characterised in that: described Textile be one of cotton textiles or linen textile.
4. shortening the salt-free low-alkali dyeing method of reactive dyeing time as described in claim 1, it is characterised in that: described Alcohol organic solvent be one of ethyl alcohol or isopropanol.
5. shortening the salt-free low-alkali dyeing method of reactive dyeing time as described in claim 1, it is characterised in that: described Reactive dye be a chloro-s-triazine type reactive dye or dichloro s-triazine type reactive dye or vinyl-sulfone reactive dyes or double One of active fundamental mode reactive dye.
6. shortening the salt-free low-alkali dyeing method of reactive dyeing time as claimed in claim 3, it is characterised in that: described Cotton textiles be cotton staple in bulk or cotton or sliver or one of cotton fabric or cotton nonwoven fabrics.
CN201710955502.3A 2017-10-14 2017-10-14 Shorten the salt-free low-alkali dyeing method of reactive dyeing time Pending CN109667164A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110258141A (en) * 2019-06-06 2019-09-20 武汉纺织大学 A method of improving reactive dye color fixing rate in alcohol organic solvent-aqueous systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110258141A (en) * 2019-06-06 2019-09-20 武汉纺织大学 A method of improving reactive dye color fixing rate in alcohol organic solvent-aqueous systems
CN110258141B (en) * 2019-06-06 2022-02-08 武汉纺织大学 Method for improving fixation rate of reactive dye in alcohol organic solvent-water system

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Application publication date: 20190423