CN106521989B - A kind of nonaqueous solvents cold-rolling heap staining method of reactive dye - Google Patents
A kind of nonaqueous solvents cold-rolling heap staining method of reactive dye Download PDFInfo
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- CN106521989B CN106521989B CN201611072827.9A CN201611072827A CN106521989B CN 106521989 B CN106521989 B CN 106521989B CN 201611072827 A CN201611072827 A CN 201611072827A CN 106521989 B CN106521989 B CN 106521989B
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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
- D06P1/0032—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
- 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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Abstract
The present invention provides a kind of nonaqueous solvents cold-rolling heap staining methods of reactive dye.This method includes that textile product padding lye is baked, dried；By textile product padding dye liquor；The textile after dye liquor will be padded to bank up under the saturated vapor atmosphere of the poor solvent of reactive dye；The textile that heap is postponed is baked, is dried, and the nonaqueous solvents cold-rolling heap staining of reactive dye is completed；Alternatively, being carried out to textile cation-modified；By textile product padding lye, bakes, dries；By textile product padding dye liquor；The textile after dye liquor will be padded to bank up；The textile that heap is postponed is baked, is dried, and the nonaqueous solvents cold-rolling heap staining of reactive dye is completed.This method can be realized reactive dye salt-free and promote dye dyeing, and degree of fixation is high, and the dosage of organic solvent and water is low, and low energy consumption, and wastewater discharge is few.
Description
Technical field
The present invention relates to a kind of colouring method of reactive dye more particularly to a kind of nonaqueous solvents cold pad--batch of reactive dye
Colouring method belongs to textile dyeing and finishing technical field.
Background technique
The dyeing of reactive fibre at present mostly uses greatly reactive dye, in dyeing course in an aqueous medium due to active group
Hydrolysis, do not only result in the waste of a large amount of reactive dye, and need in dyeing course to consume a large amount of water and discharge is big
Reluctant high chroma sewage is measured, this, which is also that reactive dye are all the time existing, is difficult to the bottleneck overcome.
In order to be avoided that the hydrolysis of reactive dye, the utilization rate of reactive dye is improved, scientists are very early
Paid attention to and has studied dyeing of the reactive dye in non-aqueous media.It is that reactive dye exist using the advantage that non-aqueous media dyes
It will not be hydrolyzed in dyeing course, be expected to that the extent of reaction of reactive dye and fiber can be improved.But meanwhile using non-aqueous media
Dyeing also always exists more problem, and the main dissolubility including reactive dye in non-aqueous media, fiber are in non-aqueous media
In solubility in non-aqueous media of Swelling Capacity, fixation alkaline agent and level-dyeing property, the through-dyeing of dyeing etc..Although active
Dyestuff dyes that there is many difficult points in non-aqueous media, but is gradually risen at this stage with water cost and people protect environment
Shield increasingly pay attention to, reactive dye non-aqueous media dyeing with its good application prospect also more and more attention has been paid to.
Reactive dye C.I. active red is dissolved using dimethylformamide in India's textile technology research institute eighties in last century
12, trichloro ethylene is added portionwise during being warming up to 80 DEG C and keeps the temperature 1h, the almost upper dye of dyestuff, degree of fixation 84%.
Though this method provides a preferable solvent dyeing thinking, degree of fixation is more little compared to advantage than conventional coloring method, dyeing
It soaps afterwards there is still a need for a large amount of water progress high temperature and removes loose colour, prospects for commercial application is little, therefore is not further developed.
Solvent reverse micelle decoration method is a kind of novel non-aqueous solvent dyeing technique occurred in recent years, which is by fiber
Or dyed in the reverse micelle system of the fabric aqueous dye solutions that have been placed in high concentration solubilized, dyeing institute's water consumption and traditional water bath contaminate
Form and aspect ratio greatly reduces, a kind of novel water-saving dyeing of can yet be regarded as.But there are the following problems for reverse micelle dyeing:
1, system internal surfactants and the dosage of cosurfactant are larger, and the dosage of a large amount of surfactant and auxiliary agent is led
It causes to adsorb a large amount of surfactant and auxiliary agent on cloth specimen in dyeing course, equally will cause post-processing difficulty, waste water of soaping
COD value is higher, environmental pollution and certain wasting of resources.2, the high concentration aqueous dye solutions pair due to dispersing in dicyandiamide solution
The affinity of fiber is high, therefore dyestuff dyeing speed is fast, is difficult to control, easy dyeing flower.3, fiber needs to pad first certain when dyeing
The aqueous sodium carbonate of concentration, and enter dye to liquid rate with certain, water present in system also results in the hydrolysis of dyestuff, because
This, degree of fixation is lower.
In order to overcome reverse micelle system to dye drawback, Yida Textile Co., Ltd cooperates to open again with Institutes Of Technology Of Zhejiang
Organic solvent suspension system has been sent out to realize the dyeing of reactive dye.The dyeing is by reactive dye and a certain amount of dispersion
Agent is scattered in organic solvent system by ball milling, and the upper dye to fiber is realized under certain dyeing condition.In the dyeing
The dispersing agent of use is only 0.15 times of dye dosage, and the dye-uptake of dyestuff can reach nearly 100%, has been fully demonstrated non-aqueous
The advantage of agent dyeing, but also due to the dye granule dispersed in dicyandiamide solution is high to the affinity of fiber, therefore dyeing speed
Fastly, easy dyeing flower.
Although reactive dye non-aqueous solvent dyeing has lot of documents report, the degree of fixation of reactive dye is still lower,
There is still a need for a large amount of water after dyeing to wash away remaining loose colour on cotton fiber, and it is real that this also just loses non-aqueous solvent dyeing
Meaning.
Yida Textile Co., Ltd makes great progress in terms of non-aqueous solvent dyeing recently, contaminates by activity
The in the mixed solvent of the poor solvent composition of the good solvent and reactive dye of material exhausts dye (or to disseminate) cotton using reactive dye
Fiber and other fibers, achieve good technical effect.But it is 1:(15-50 that this method, which requires bath raio) (bath raio is fiber
Quality g: the volume mL of solvent) it, and needs in 90-130 DEG C of heat preservation 1-3h fixation, the usage amount of total solvent is larger, production
Energy consumption is larger in the process, and the economic cost of generation is higher.
Summary of the invention
In order to solve the above technical problems, the purpose of the present invention is to provide a kind of nonaqueous solvents cold pad--batch of reactive dye dyes
Color method, this method can be realized reactive dye salt-free and promote dye dyeing, and degree of fixation is high, and the dosage of organic solvent and water is low, energy consumption
It is low, and wastewater discharge is few.
In order to achieve the above objectives, the present invention provides a kind of nonaqueous solvents cold-rolling heap staining method of reactive dye, the party
Method the following steps are included:
By textile product padding lye, control liquid carrying rate is 50-120%, bakes, dries；
By textile product padding dye liquor, control liquid carrying rate is 50-120%；Wherein, the solvent of the dye liquor is reactive dye
Good solvent；
The textile after dye liquor will be padded to bank up under the saturated vapor atmosphere of the poor solvent of reactive dye；
The textile that heap is postponed is baked, is dried, and the nonaqueous solvents cold-rolling heap staining of reactive dye is completed；Alternatively,
Textile is carried out cation-modified；
By textile product padding lye, control liquid carrying rate is 50-120%, bakes, dries；
By textile product padding dye liquor, control liquid carrying rate is 50-120%；Wherein, the solvent of the dye liquor is reactive dye
Good solvent；
The textile after dye liquor will be padded to bank up；
The textile that heap is postponed is baked, is dried, and the nonaqueous solvents cold-rolling heap staining of reactive dye is completed.
In the above-mentioned methods, it is preferable that saturation of the textile after dye liquor in the poor solvent of reactive dye will be padded and steamed
Bank up under vapour atmosphere include:
By the poor solvent of adsorbent material dipping reactive dye, and reach saturation adsorbed state, after obtaining saturation absorption
Adsorbent material；Alternatively, the poor solvent of reactive dye is placed in open-top receptacle；
By the adsorbent material after saturation absorption or the open-top receptacle and textile one of the poor solvent that placed reactive dye
In being placed under enclosed environment together, and under the conditions of the saturated vapor pressure for the poor solvent for making enclosed environment be in reactive dye.
The saturated vapor pressure environment of the poor solvent of reactive dye can make to rest on textile therein and (pad
Dye liquor) on the contents of good solvent (polar solvent) of reactive dye slowly reduce；After banking up, textile is baked
The content for reducing the good solvent of reactive dye on fabric is further promoted, is promoted anti-between reactive dye and fiber
It answers, to improve the dye-uptake and degree of fixation of reactive dye.
In the technical solution provided by the present invention, cation-modified work is not particularly limited, it can be normal using this field
The cation-modified technique of rule is operated.
Technical solution provided by the invention carries out alkali immerging, dye liquor, banks up, roasts after cation-modified to textile
Dry operation is dried, the dye-uptake and degree of fixation of reactive dye are greatly improved, the textile of final acquisition reaches after tested
The requirement of Non-water washing, and flooding phenomenon is serious after common reactive dyeing product dyeing, needs to repeat multiple water
Wash, soap and (generally require repetition washing, soap 7-15 time), this process water amount is huge, and soap, wash after be discharged give up
Water pollution is serious, although the modified dyeing product of common cationic after cation-modified according to conventional dyeing process (after dyeing
Product) in contrast loose colour problem makes moderate progress, but the operation for still needing repeatedly to be washed, soaped after dyeing；It is many
It is well known, dyeing and finishing technology washing, process of soaping water consumption it is huge, the waste liquid amount of generation is also huge, and this
The product that the technical solution that invention provides obtains has achieved the effect that Non-water washing, efficiently solves above-mentioned technical problem.
In the above-mentioned methods, the adsorbent material can be fiber, active carbon or other porous adsorbing materials, without special
Limitation, the material of all poor solvents that can play adsorption activity dyestuff are used equally for technical solution provided by the invention.
In the above-mentioned methods, it is preferable that in the dye liquor, the concentration of reactive dye is 1-70g/L.
In the above-mentioned methods, it is preferable that the temperature banked up is room temperature.
In the above-mentioned methods, it is preferable that the time banked up is 8-48h, more preferably 15-28h.
In the above-mentioned methods, it is preferable that by when textile product padding lye using an immersing and rolling or two leaching two roll by the way of into
Row.
In the above-mentioned methods, it is preferable that after textile product padding dye liquor, in the saturated vapor of the poor solvent of reactive dye
Before being banked up under atmosphere, this method further includes baking to padding the textile after dye liquor, and control liquid carrying rate is 20-50%
The step of.The step, which controls the liquid carrying rate after textile product padding dye liquor, can be conducive to improve reactive dye for 20-50%
Degree of fixation: when liquid carrying rate is 25-35%, measuring degree of fixation and be up to 98%, and when liquid carrying rate is higher than 50%, the degree of fixation phase measured
To lower, it is lower than 95%.
In the above-mentioned methods, it is preferable that the temperature baked is 40-120 DEG C；More preferably 40-105 DEG C.
In the above-mentioned methods, it is preferable that by textile product padding lye, control liquid carrying rate is 50-120%, bakes, dries
When, baking temperature is 40-105 DEG C.
In the above-mentioned methods, it is preferable that after textile product padding dye liquor, in the saturated vapor of the poor solvent of reactive dye
Before being banked up under atmosphere, this method further includes that will pad the textile after dye liquor to bake, and control liquid carrying rate is 20-50%
The step of.
In the above-mentioned methods, it is preferable that after the textile for postponing heap is baked, dried, this method can also include
The step of soaping to textile.
In the above-mentioned methods, it is preferable that when the textile for postponing heap is baked, dried, this method further includes to work
The step of good solvent of property dyestuff and the poor solvent of reactive dye are recycled；Normal pressure or vacuum distillation can be used when recycling
The mode of condensation carries out, and can also be recycled using organic solvent adsorption recovery system to organic solvent.
In the above-mentioned methods, it is preferable that saturation of the textile after dye liquor in the poor solvent of reactive dye will be padded and steamed
It is banked up under vapour atmosphere；After the textile that heap postpones is baked, dried, this method further includes using color fixing agent to weaving
Product carry out the step of fixation treatment.
In the above-mentioned methods, it is preferable that the good solvent of the reactive dye is that can dissolve reactive dye but not contaminate with activity
Expect the nonaqueous solvents chemically reacted；It is highly preferred that the good solvent of the reactive dye is polar solvent；Further preferably
Ground, the good solvent of the reactive dye include n,N-Dimethylformamide, n,N-dimethylacetamide, dimethyl sulfoxide, ion
The combination of one or more of liquid and alcohol ether solvents.
In the above-mentioned methods, it is preferable that the poor solvent of the reactive dye is not chemically react with reactive dye
And reactive dye are in solubility≤1g/L nonaqueous solvents wherein；It is highly preferred that the poor solvent of the reactive dye includes
One in alkane, chloro-hydrocarbons class, alkene, aromatic hydrocarbons, ketones solvent, alcohols solvent, silanes solvent, esters solvent and ether solvent
Kind or several combinations；It is further preferred that the poor solvent of the reactive dye includes C6-C8N-alkane, C6-C8's
The combination of one or more of isoparaffin, tetrachloro-ethylene, acetone, tetrahydrofuran, decamethylcyclopentaandoxane.
In the above-mentioned methods, it is preferable that the alkaline matter in the lye include sodium carbonate, sodium bicarbonate, sodium hydroxide,
The combination of one or more of lithium hydroxide and potassium hydroxide；It is highly preferred that concentration of the alkaline matter in lye is
5-50g/L。
In the above-mentioned methods, it is preferable that the material of the textile includes cellulose fibre, protein fibre, has instead
Answer the combination of one or more of synthetic fibers of group；Wherein, the cellulose fibre includes cotton, fiber crops, one in viscose glue
Kind is several；The protein fibre includes wool and/or silk；The fiber with reactive group includes nylon.It is described
The form of textile is not particularly limited, and can be staple in bulk, yarn or cloth.
The poor solvent of the good solvent of reactive dye and reactive dye is mixed, is then disseminated using mixed solvent
When, the practical ratio of total solvent (total solvent refers to the sum of the good solvent of reactive dye and the poor solvent of reactive dye) are as follows:
The quality of textile: volume=1g:(15-50 of total solvent) mL；And technical solution provided by the invention is used, in cold dome process
The use ratio of middle total solvent are as follows: the quality of textile: volume=1g:(0.5-1.2 of total solvent) mL；In contrast, this hair
The technical solution of bright offer has been greatly saved the usage amount of total solvent, and (usage amount of technical solution total solvent provided by the invention is only
The 2-10% of dye (dip dyeing) technique is exhausted for the mixed solvent).
Moreover, when being disseminated using mixed solvent, for the reactivity for improving dyestuff, obtain dyestuff higher
Utilization rate, need control " 90-130 DEG C of heat preservation 1-3h " this under the conditions of could good fixation, thus laking process generation
Energy consumption it is larger, economic drain is larger, be unfavorable for save production cost；And technical solution provided by the invention, using room temperature heap
It sets and fixation can be completed.
Beneficial effects of the present invention:
1) colouring method of the invention dyes reactive dye using nonaqueous solvents, carries out rush dye without using salt,
Fiber needs not move through the fixation step of any wet process after dyeing, that is, can reach high degree of fixation, solves activity dye at present
Expect to cause a large amount of dyestuffs to be disposed in waste water (general reactive dye utilization rate because hydrolysis or degree of fixation be not high in dyeing
Only 50-75%), and dye after need to carry out using a large amount of water washing and high temperature soap, be attached to fibre to wash off
The dyestuff or unreacted dyestuff hydrolyzed in dimension；
2) dye utilization rate of colouring method provided by the invention can reach 99.7%, not need after dyeing repeatedly more
Secondary washing saves dyestuff, and dyeing is simple to remove loose colour, and it is a kind of environment protection type dye method that solvent is recyclable；
3) it mixes with by the poor solvent of the good solvent of reactive dye and reactive dye, is then soaked using mixed solvent
The method of dye is compared, and technical solution provided by the invention saves the total solvent usage amount of 90-98% or so；
4) with mixed solvent dip dyeing mode compared with, technical solution entirety energy consumption provided by the invention reduce 40% with
On, it is effectively saved production cost.
And significantly reduce production energy consumption.
Specific embodiment
In order to which technical characteristic of the invention, purpose and beneficial effect are more clearly understood, now to skill of the invention
Art scheme carries out described further below, but should not be understood as that limiting the scope of the invention.
Embodiment 1
Present embodiments provide a kind of nonaqueous solvents cold-rolling heap staining method of reactive dye comprising following steps:
(1) by 10g pure-cotton woven fabric 20g/L Na2CO3Two leachings two are rolled in lye, make liquid carrying rate 100%, then again
5min is baked at 65 DEG C, it is dry.
(2) by the pure-cotton woven fabric for rolling alkali, two leachings two are rolled in dye liquor, make liquid carrying rate 60%, formula for dye liquor: 10g/L
HF Yellow 3R dyestuff (being produced by Sumitomo Chemical Co), solvent is n,N-Dimethylformamide.
(3) pure-cotton woven fabric for rolling dye liquor is placed in the ambient room temperature cold dome 40h of sealing, wherein with burning beside cotton
Cup contains acetone (keeping in beaker always with the presence of liquid acetone), is placed in same sealed environment, makes entire environment always
Saturated vapor pressure in acetone.
(4) it takes out pure-cotton woven fabric to be baked, dried, while vacuum distillation recovered solvent.
(5) by test dye degree of fixation of soaping (amount of dye of initial adsorption is calculated by liquid carrying rate, is fallen off by soaping
Dyestuff calculate the dyestuff of final fixation).
Embodiment 2
Present embodiments provide a kind of nonaqueous solvents cold-rolling heap staining method of reactive dye comprising following steps:
(1) by 10g pure-cotton woven fabric 15g/L Na2CO3It is rolled with two leachings two in the NaOH mixed alkali liquor of 5g/L, makes band liquid
Rate is 100%, then bakes 5min at 65 DEG C again, dry.
(2) by the pure-cotton woven fabric for rolling alkali, two leachings two are rolled in dye liquor, make liquid carrying rate 60%, formula for dye liquor: 10g/L
HF Yellow 3R dyestuff (being produced by Sumitomo Chemical), solvent is dimethyl sulfoxide: n,N-Dimethylformamide=1:1.
(3) pure-cotton woven fabric for padding dye liquor is baked into 90-110s at 70 DEG C, baking rear liquid carrying rate is 25%.
(4) pure-cotton woven fabric for crossing curing fixation is placed in the ambient room temperature cold dome 40h of sealing, wherein uses beside cotton
Beaker contains acetone (keeping in beaker always with the presence of liquid acetone), is placed in same sealed environment, entire environment is made to begin
The saturated vapor in acetone is depressed eventually.
(5) pure-cotton woven fabric, vacuum distillation recovered solvent are taken out.
(6) pass through test dye degree of fixation of soaping.
Embodiment 3
Present embodiments provide a kind of nonaqueous solvents cold-rolling heap staining method of reactive dye comprising following steps:
(1) pure-cotton woven fabric is placed in the solution of cation modifier, and is warming up to 70 DEG C and keeps the temperature 60 minutes, take out shuttle
Woven fabric, washing are dry；The solution formula of cation modifier: (cation reagent A is DM-1903 to the cation reagent A of 18g/L
Cation modifier is produced by Guangdong Demei Fine Chemical Co., Ltd.), the NaOH of 8g/L, solvent is water.
(2) cation-modified 10g pure-cotton woven fabric will be passed through in the Na of 20g/L2CO3Two leachings two are rolled in lye, make band liquid
Rate is 100%, and 5min is then baked at 65 DEG C, dry.
(3) by the modification pure-cotton woven fabric for rolling alkali, two leachings two are rolled in dye liquor, liquid carrying rate 60%, formula for dye liquor:
The HF Yellow 3R dyestuff (Sumitomo Chemical production) of 40g/L, solvent is dimethyl sulfoxide.
(4) pure-cotton woven fabric for padding dye liquor is placed in the ambient room temperature cold dome 40h of sealing.
(5) it takes out pure-cotton woven fabric to be baked, dried, while vacuum distillation recovered solvent.
(6) by test dye degree of fixation of soaping (amount of dye of initial adsorption is calculated by liquid carrying rate, is fallen off by soaping
Dyestuff calculate the dyestuff of final fixation).
Embodiment 4
Present embodiments provide a kind of nonaqueous solvents cold-rolling heap staining method of reactive dye comprising following steps:
(1) prepare the solution of cation modifier first: (cation reagent B is by cation reagent B that concentration is 26g/L
CR 2000, is produced by Dow Chemical) aqueous solution, concentration be 8g/L NaOH mix；By pure-cotton woven fabric be placed in sun from
It is warming up to 80 DEG C in the solution of sub- modifying agent and keeps the temperature 60 minutes, takes out looped fabric, washing is dry；
(2) cation-modified 10g pure-cotton woven fabric will be passed through in the Na of 20g/L2CO3Two leachings two are rolled in lye, make band liquid
Rate is 100%, and 5min is then baked at 65 DEG C, dry.
(3) by the modification pure-cotton woven fabric for rolling alkali, two leachings two are rolled in dye liquor, liquid carrying rate 60%, formula for dye liquor:
The HF Navy 2G dyestuff (Sumitomo Chemical production) of 40g/L, solvent is dimethyl sulfoxide.
(4) the pure cotton knitting woven fabric that dye liquor is crossed will be padded and is placed in the ambient room temperature cold dome of sealing for 24 hours.
(5) pure cotton knitting woven fabric, vacuum distillation recovered solvent are taken out.
(6) by test dye degree of fixation of soaping (amount of dye of initial adsorption is calculated by liquid carrying rate, is fallen off by soaping
Dyestuff calculate the dyestuff of final fixation) and test cotton fastness.
Embodiment 5
Present embodiments provide a kind of nonaqueous solvents cold-rolling heap staining method of reactive dye comprising following steps:
(1) pure-cotton woven fabric is placed in the solution of cation modifier and is warming up to 70 DEG C of heat preservations 60 minutes, take out tatting
Cloth, washing are dry；The solution formula of cation modifier: the NaOH of the cation reagent A, 8g/L of 18g/L, solvent is water.
(2) cation-modified 10g pure-cotton woven fabric will be passed through in the Na of 20g/L2CO3Two leachings two are rolled in lye, make band liquid
Rate is 100%, then bakes 5min at 65 DEG C again, dry.
(3) by the modification pure-cotton woven fabric for rolling alkali, two leachings two are rolled in dye liquor, liquid carrying rate 60%, formula for dye liquor:
The HF Red 4B dyestuff (Sumitomo Chemical production) of 10g/L, solvent is dimethyl sulfoxide.
(4) pure-cotton woven fabric for padding dye liquor is placed in the ambient room temperature cold dome of sealing for 24 hours.
(5) it takes out pure-cotton woven fabric to be baked, dried, vacuum distillation recovered solvent.
(6) by test dye degree of fixation of soaping (amount of dye of initial adsorption is calculated by liquid carrying rate, is fallen off by soaping
Dyestuff calculate the dyestuff of final fixation).
The degree of fixation for the dyeing product that embodiment 1-5 is provided is as shown in table 1:
The degree of fixation for the dyeing product that 1 embodiment 1-5 of table is provided
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | |
| Degree of fixation F/% | 95.6 | 98.1 | 99.7 | 99.5 | 99.4 |
As can be seen from Table 1, the dyeing product that 1-5 of the embodiment of the present invention is provided has very high degree of fixation；Wherein, real
The degree of fixation for applying example 2 has reached 98.1%, especially embodiment 3-5, and degree of fixation has reached 99% or more, reached Non-water washing
Requirement.
It,, can before step (5) starts after step (4) in the cold-rolling heap staining method that above-described embodiment 1 provides
It is solid at this time to further increase the degree of fixation of dyeing product with the operation using color fixing agent to pure-cotton woven fabric to be carried out to fixation
Color rate can achieve 99% or more.
Above-described embodiment during cold dome total solvent (poor solvent of the good solvents of reactive dye and reactive dye it
With) practical ratio are as follows: the quality of textile: volume=1g:(0.5-1.2 of total solvent) mL, staining reagent in dyeing course
Opposite with the dosage of water to greatly reduce with conventional coloring method, final wastewater discharge is significantly reduced.
In conclusion the nonaqueous solvents cold-rolling heap staining method of reactive dye provided by the invention is a kind of high-efficiency environment friendly
New dyeing method can be realized reactive dye salt-free and promote dye dyeing, and degree of fixation is high, and the dosage of organic solvent and water is low, energy consumption
It is low, and wastewater discharge is few, has broad application prospects.
Claims (9)
1. a kind of nonaqueous solvents cold-rolling heap staining method of reactive dye comprising following steps:
Textile is carried out cation-modified；
By textile product padding lye, control liquid carrying rate is 50-120%, bakes, dries；
By textile product padding dye liquor, control liquid carrying rate is 50-120%；Wherein, the solvent of the dye liquor is the good molten of reactive dye
Agent；
The textile after dye liquor will be padded to bank up；Wherein, the temperature banked up is room temperature；The time banked up is
15-28h；
The textile that heap is postponed is baked, is dried, and the nonaqueous solvents cold-rolling heap staining of reactive dye is completed.
2. according to the method described in claim 1, wherein, in the dye liquor, the concentration of reactive dye is 1-70g/L.
3. according to the method described in claim 1, wherein, by what is rolled when textile product padding lye using an immersing and rolling or two leachings two
Mode carries out.
4. method according to claim 1-3, wherein the temperature baked is 40-120 DEG C.
5. method according to claim 1-3, wherein the good solvent of the reactive dye is that can dissolve activity dye
Material but the nonaqueous solvents not chemically reacted with reactive dye.
6. according to the method described in claim 5, wherein, the good solvent of the reactive dye is polar solvent.
7. according to the method described in claim 5, wherein, the good solvent of the reactive dye include n,N-Dimethylformamide,
The combination of one or more of DMAC N,N' dimethyl acetamide, dimethyl sulfoxide, ionic liquid and alcohol ether solvents.
8. according to the method described in claim 1, wherein, the alkaline matter in the lye includes sodium carbonate, sodium bicarbonate, hydrogen
The combination of one or more of sodium oxide molybdena, lithium hydroxide and potassium hydroxide.
9. according to the method described in claim 8, wherein, concentration of the alkaline matter in lye is 5-50g/L.
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