CN104594074A - High-fixation-rate non-aqueous solvent dyeing method for reactive dyes - Google Patents

High-fixation-rate non-aqueous solvent dyeing method for reactive dyes Download PDF

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CN104594074A
CN104594074A CN201510053854.0A CN201510053854A CN104594074A CN 104594074 A CN104594074 A CN 104594074A CN 201510053854 A CN201510053854 A CN 201510053854A CN 104594074 A CN104594074 A CN 104594074A
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fiber
reactive dyes
solvent
dyeing
fabric
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CN104594074B (en
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邓勇
张玉高
王际平
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Guangdong Esquel Textiles Co Ltd
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Guangdong Esquel Textiles Co Ltd
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Abstract

The invention provides a high-fixation-rate non-aqueous solvent dyeing method for reactive dyes. The method comprises the following steps: swelling fibers in aqueous solution of an alkaline matter until the liquid carrying rate is 30-200 percent, and drying; mixing the dried fibers with reactive dyes and good solvents of the reactive dyes, adding poor solvents of the reactive dyes, heating to the dyeing temperature, and preserving the temperature; preserving the temperature of the dyed fibers in an organic solution of a compound with more than two nucleophilic groups for a period of time; and reacting the fibers in an organic solution of a compound with more than two electrophilic groups, taking out the fibers, neutralizing, washing, and finishing dyeing, wherein the material added into the aqueous solution of the alkaline matter refers to loose fibers or yarns, fabrics or garment made of the fibers. According to the high-fixation-rate non-aqueous solvent dyeing method for reactive dyes provided by the invention, the amount of water is small, and the utilization rate of the dyes is high.

Description

A kind of REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate
Technical field
The present invention relates to a kind of colouring method of REACTIVE DYES, particularly a kind of REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate, belongs to textile dyeing and finishing technical field.
Background technology
The dyeing of current reactive fibre adopts REACTIVE DYES mostly, due to the hydrolysis of active group in aqueous medium in dyeing course, not only cause the waste of a large amount of REACTIVE DYES, and need consume a large amount of water and discharge a large amount of reluctant high chroma sewage in dyeing course, this is the bottleneck being difficult to overcome that REACTIVE DYES exists all the time.
In order to avoid the hydrolysis of REACTIVE DYES, improve the utilization rate of REACTIVE DYES, scientists is being noted very early and have studied the dyeing of REACTIVE DYES in non-aqueous media.Adopt the advantage of non-aqueous media dyeing to be that REACTIVE DYES can not be hydrolyzed in dyeing course, be expected to the extent of reaction that can improve REACTIVE DYES and fiber.But simultaneously, adopt non-aqueous media dyeing also to there is more problem always, mainly comprise the dissolubility of REACTIVE DYES in non-aqueous media, the Swelling Capacity of fiber in non-aqueous media, the fixation alkaline agent solubility in non-aqueous media and the level-dyeing property, through-dyeing etc. of dyeing.Although REACTIVE DYES dyes and there is many difficult points in non-aqueous media, present stage use water cost raise gradually, and people more and more pay attention to environmental protection, and the dyeing of REACTIVE DYES non-aqueous media also more and more receives publicity with its good application prospect.
The eighties in last century, India's textile technology research institute adopted dimethyl formamide lytic activity dyestuff C.I. active red 12, and add trichloro-ethylene in batches and be incubated 1h being warming up in 80 DEG C of processes, dyestuff is completely upper dye almost, and degree of fixation is 84%.Though said method provides a good solvent dyeing thinking, it is little that degree of fixation compares advantage than conventional coloring method, and still need a large amount of water to carry out high temperature after dyeing and to soap removal loose colour, prospects for commercial application is little, is therefore further developed.
Solvent reverse micelle decoration method is a kind of novel non-aqueous solvent dyeing technique in recent years occurred, this method is that reverse micelle system fiber or fabric being placed in the aqueous dye solutions of solubilising high concentration dyes, greatly reduce compared with dyeing institute water consumption dyes with traditional water bath, a kind of novel water saving dyeing of can yet be regarded as.But there is following problem in reverse micelle dyeing: 1, the large usage quantity of system internal surfactants and cosurfactant, a large amount of surfactants and the consumption of auxiliary agent cause cloth specimen adsorbing a large amount of surfactants and auxiliary agent in dyeing course, can cause post processing difficulty, higher, the environmental pollution of COD value of waste water of soaping and certain wasting of resources equally.2, the affinity of high concentration aqueous dye solutions to fiber owing to disperseing in dicyandiamide solution is high, and therefore dyestuff dyeing speed is fast, wayward, easy dyeing flower.3, during dyeing, first cotton fiber needs to pad certain density aqueous sodium carbonate, and enters dye with certain liquid rate for the treatment of, the water existed in system can cause the hydrolysis of dyestuff equally, and therefore, its degree of fixation is lower.
In order to overcome reverse micelle system dyeing drawback, Yida Textile Co., Ltd and Institutes Of Technology Of Zhejiang have developed organic solvent suspension system cooperatively to realize the dyeing of REACTIVE DYES.REACTIVE DYES and a certain amount of dispersant are scattered in organic solvent system by ball milling by this dyeing, realize the upper dye to cotton fiber under certain dyeing condition.The dispersant adopted in this dyeing is only 0.15 times of dye dosage, and the dye-uptake of dyestuff can reach nearly 100%, fully demonstrate the advantage of non-aqueous solvent dyeing, but equally because the affinity of dye granule to cotton fiber of disperseing in dicyandiamide solution is high, therefore dyeing speed is fast, easy dyeing flower, equally, the water existed in system can cause the hydrolysis of dyestuff, and dye utilization rate is low.
Although REACTIVE DYES non-aqueous solvent dyeing technique has lot of documents report, but the degree of fixation of REACTIVE DYES is still lower, after dyeing, still need a large amount of water to wash away the loose colour on fiber, this also just loses non-aqueous solvent dyeing real significance, simultaneously, because the affinity of dyestuff in dicyandiamide solution to fiber is high, dyeing rate is wayward, causes easy dyeing flower of dyeing.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate, this colouring method dye fixing rate is high, and the consumption of water is few.
In order to achieve the above object, the invention provides a kind of REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate, it comprises the following steps:
Step one: it is 30%-200% that aqueous solution fiber (or fiber make yarn, fabric or ready-made clothes) being placed in alkaline matter is swelling to liquid carrying rate, dries;
Step 2: mixed with the good solvent of REACTIVE DYES, REACTIVE DYES by the fiber (or fiber make yarn, fabric or ready-made clothes) after drying, add the poor solvent of REACTIVE DYES, is warming up to held for some time after dyeing temperature; Wherein, the volume ratio of the good solvent of described REACTIVE DYES and the poor solvent of described REACTIVE DYES is 1:3-20; The ratio of the quality of the volume of the good solvent of described REACTIVE DYES and described fiber (or fiber make yarn, fabric or ready-made clothes) is 2-50:1, be preferably 3-10:1, wherein, the volume unit of good solvent is mL, and the mass unit of fiber (or fiber make yarn, fabric or ready-made clothes) is g;
Step 3: fiber (or fiber make yarn, fabric or the ready-made clothes) organic solution be placed in two or more nucleophilic group compound after dyeing is reacted 0.5-2h at 40-80 DEG C, then reacts fiber (or fiber make yarn, fabric or the ready-made clothes) organic solution be placed in two or more electrophilic group compound after dyeing to 0.5-2h at 40-80 DEG C;
Or, fiber (or fiber make yarn, fabric or the ready-made clothes) organic solution be placed in two or more electrophilic group compound after dyeing is reacted 0.5-2h at 40-80 DEG C; Then fiber (or fiber make yarn, fabric or the ready-made clothes) organic solution be placed in two or more nucleophilic group compound after dyeing is reacted 0.5-2h at 40-80 DEG C;
Or, the fiber (or fiber make yarn, fabric or ready-made clothes) after dyeing is placed in and at 40-80 DEG C, reacts 0.5-2h with two or more electrophilic group compound with the organic solution of two or more nucleophilic group compound;
Wherein, the consumption with two or more nucleophilic group compound is 0.1%o.m.f-10%o.m.f, and the fiber after dyeing is 1:5-30 with the solid-liquid ratio with the organic solution of two or more nucleophilic group compound; Consumption with two or more electrophilic group compound is 0.1%o.m.f-10%o.m.f, and fiber after dyeing (or fiber make yarn, fabric or ready-made clothes) is 1:5-30 with the solid-liquid ratio with the organic solution of two or more electrophilic group compound;
Step 4: take out fiber, carry out neutralizing, washing, complete dyeing;
Wherein, the fiber of employing comprises cellulose fibre, protein fibre and has the combination of one or more in the synthetic fiber of reactive group;
Preferably, described reactive group comprises amino, hydroxyl, sulfydryl;
The cellulose fibre adopted comprises the combination of one or more in cotton fiber, fiber crops and viscose, and the protein fibre of employing comprises wool and/or silk etc., and the synthetic fiber with reactive group of employing comprise nylon etc.;
Adding in the aqueous solution of alkaline matter can be bulk fibre, also can be yarn, fabric or ready-made clothes that fiber is made;
Described with the organic solvent in the organic solution of two or more nucleophilic group compound be can dissolve this with two or more nucleophilic group compound but not with the organic solvent of REACTIVE DYES generation chemical reaction;
Described with the organic solvent in the organic solution of two or more electrophilic group compound be can dissolve this with two or more electrophilic group compound but not with the organic solvent of REACTIVE DYES generation chemical reaction;
The good solvent of described REACTIVE DYES be can lytic activity dyestuff but not with the nonaqueous solvents of REACTIVE DYES generation chemical reaction; The poor solvent of described REACTIVE DYES be can not lytic activity dyestuff and not with the nonaqueous solvents of REACTIVE DYES generation chemical reaction;
The poor solvent of described REACTIVE DYES added or added in temperature-rise period before intensification.
According to specific embodiment of the invention scheme, the operation of neutralization, washing is carried out in a conventional manner.
In the REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate provided by the invention, preferably, in step 2, yarn, fabric or ready-made clothes that the fiber after oven dry or fiber are made are mixed with the good solvent of REACTIVE DYES, REACTIVE DYES, in temperature-rise period, add the poor solvent of REACTIVE DYES, after being warming up to dyeing temperature 80-130 DEG C, be incubated 1-2h.
In the REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate provided by the invention, preferably, the good solvent of REACTIVE DYES used is polar solvent; More preferably, the good solvent of the REACTIVE DYES adopted comprises N, the combination of one or more in dinethylformamide (DMF), DMA (DMAC), dimethyl sulfoxide (DMSO) (DMSO), ionic liquid and alcohol ether solvents etc.
In the REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate provided by the invention, preferably, the poor solvent of described REACTIVE DYES comprises the combination of one or more in alkane, chloride hydro carbons, alkene, aromatic hydrocarbons, ketones solvent, silanes solvent, esters solvent and ether solvent; More preferably, the poor solvent of described REACTIVE DYES comprises C 6-C 8n-alkane, C 6-C 8isoparaffin, the combination of one or more in perchloroethylene and decamethylcyclopentaandoxane.
In the REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate provided by the invention, preferably, employing with the nucleophilic group in the organic solution of two or more nucleophilic group compound be can with the nucleophilic group of REACTIVE DYES generation chemical reaction; More preferably, the nucleophilic group of employing comprises primary amino radical, secondary amino group, hydroxyl or sulfydryl; Most preferably, describedly polyethylene polyamine, polymine, ethylene glycol, polyethylene glycol, multi-thiol and multi-thiol derivative etc. are comprised with two or more nucleophilic group compound.
In the REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate provided by the invention, preferably, employing is the electrophilic group that chemical reaction occurs for reactive group (hydroxyl, amino, sulfydryl etc.) in yarn, fabric or the ready-made clothes can made with nucleophilic group and fiber or fiber with the electrophilic group in the organic solution of two or more electrophilic group compound; More preferably, electrophilic group comprises epoxy radicals, aldehyde radical, cyano group, triazine cyclic group, methylol, acid chloride group, acryloyl group or isocyanate group; Most preferably, describedly Cyanuric Chloride, cyanuric fluoride, binary acyl chlorides, 2D resin, polyurethane, urethane derivative, epoxychloropropane, dialdehyde and dicyandiamide etc. are comprised with two or more electrophilic group compound.
In the REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate provided by the invention, preferably, described alkaline matter comprises M (CO 3) x, M (OH) y, M (H xp yo z), R 1r 2r 3n and R 4o -in the combination of one or more, wherein, M is metal ion, R 1, R 2, R 3, R 4be respectively alkyl or Hydrogen Proton, X, Y, Z are respectively the integer of 1-3; More preferably, the alkaline matter of employing comprises the combination of one or more in sodium carbonate, sodium bicarbonate, NaOH, lithium hydroxide and potassium hydroxide.
In the REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate provided by the invention, preferably, the concentration of the aqueous solution of the alkaline matter of employing is 1g/L-100g/L; More preferably, the concentration of the aqueous solution of alkaline matter is 5-50g/L.
The REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate provided by the invention adopts nonaqueous solvents to dye to REACTIVE DYES, in dyeing course, active group is not hydrolyzed, after amount of activated dyestuff and fiber generation covalent bonds, remaining REACTIVE DYES is anchored on fiber by cross-linking system, degree of fixation nearly 100%.Fiber after dyeing, after simply washing neutralization, is soaped without the need to high temperature.Thoroughly solve present stage reactive dye color fixing rate low, the problem that water consumption of soaping after dyeing is large.
The REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate provided by the invention is a kind of colouring method of high colour-fast rate.First REACTIVE DYES reacts with fiber generation fixation in nonaqueous solvents, the active group of residual activity dyestuff is not destroyed, reactivity is higher, now add a small amount of crosslinking agent, the REACTIVE DYES making unreacted complete, fiber and crosslinking agent generation in-situ polycondensation react, make dyestuff by bridged bond and fiber with covalent bonds, finally make REACTIVE DYES on fiber, have high degree of fixation.
The non-aqueous solvent dyeing method of REACTIVE DYES provided by the invention adopts the method for non-aqueous solvent dyeing, REACTIVE DYES completely on contaminate fiber, achieve the real salt-free dyeing of fiber; Dyeing residual solvent only need be recycled by simply distilling to be separated again, and dyeing course is pollution-free.
The beneficial effect of the REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate provided by the invention is embodied in the following aspects:
Colouring method of the present invention solves for a long time that REACTIVE DYES utilization rate is low, need to adopt a large amount of high temperature to soap after dyeing problem that liquid soaps, and without the need to the short dye of salt in dyeing course, dyestuff can completely upper dye;
The alkali consumption of colouring method of the present invention is few, and can not discharge containing alkali waste water;
The dye utilization rate of colouring method of the present invention is high, degree of fixation nearly 100%;
In colouring method of the present invention, after dyeing only with in a small amount of cold water and aqueous acetic acid and, soap without the need to high temperature, water consumption is little, and effects of energy saving and emission reduction is remarkable.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and beneficial effect, existing following detailed description is carried out to technical scheme of the present invention, but can not be interpreted as to of the present invention can the restriction of practical range.
Embodiment 1
Present embodiments provide a kind of REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate, specifically comprise the following steps:
Be carry out preliminary treatment in the sodium hydrate aqueous solution of 10g/L in concentration by the pure cotton knitting cloth of 10g, dry, then put into dye cup;
(3%o.m.f) E BR Red 3BS dyestuff of 0.3g, the dimethyl sulfoxide (DMSO) of 50mL is added in dye cup, 2h is incubated after being warming up to 95 DEG C with 1 DEG C/min, in temperature-rise period, add 150mL tetrachloro-ethylene, dye-uptake is 100%, is poured out by solvent and reclaims;
In dye cup, add diethylenetriamine, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
In dye cup, add Cyanuric Chloride, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
COTTON FABRIC is taken out, carries out neutralizing, washing, complete dyeing.
The degree of fixation using the COTTON FABRIC after the colouring method dyeing of the present embodiment is 98.8%.
The REACTIVE DYES non-aqueous solvent dyeing method of the high colour-fast rate of the present embodiment and the coloration result of traditional water bath colouring method are contrasted, comparing result is as shown in table 1, and table 1 is the comparing result of the REACTIVE DYES non-aqueous solvent dyeing method of the high colour-fast rate of the present embodiment and the test data of traditional water bath colouring method.
Traditional water bath colouring method: at 60 DEG C, COTTON FABRIC being placed in glauber salt that concentration is 60g/L and concentration is that the sodium carbonate of 20g/L dyes, and bath raio is 1:12.
Table 1
Embodiment 2
Present embodiments provide a kind of REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate, specifically comprise the following steps:
Be carry out preliminary treatment in the sodium hydrate aqueous solution of 10g/L in concentration by the COTTON FABRIC of 10g, dry, then put into dye cup;
In dye cup, add (3%o.m.f) S S Yellow 3RF dyestuff of 0.3g, the DMF of 50mL, after being warming up to 95 DEG C with 1 DEG C/min, be incubated 2h, 1 of 150mL is added in temperature-rise period, 2-dichloroethanes, dye-uptake is 100%, is poured out by solvent and reclaims;
In dye cup, add triethylene tetramine, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
In dye cup, add 1g Adipoyl Chloride, 100mL acetone, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
COTTON FABRIC is taken out, carries out neutralizing, washing, complete dyeing.
The degree of fixation using the rear COTTON FABRIC of colouring method dyeing of the high colour-fast rate of the present embodiment is 99.1%.
The REACTIVE DYES non-aqueous solvent dyeing method of height look rate of the present embodiment and the coloration result of traditional water bath colouring method are contrasted, comparing result is as shown in table 2, and table 2 is the comparing result of the REACTIVE DYES non-aqueous solvent dyeing method of the high colour-fast rate of the present embodiment and the test data of traditional water bath colouring method.
Traditional water bath colouring method: at 60 DEG C, COTTON FABRIC being placed in glauber salt that concentration is 70g/L and concentration is that the sodium carbonate of 20g/L dyes, and bath raio is 1:12.
Table 2
Embodiment 3
Present embodiments provide a kind of REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate, specifically comprise the following steps:
Be carry out preliminary treatment in the sodium hydrate aqueous solution of 10g/L by the cotton/nylon of 10g (70% cotton+30% nylon) knitted cloth in concentration, dry, then put into dye cup;
(3%o.m.f) S S Blue BRF dyestuff of 0.3g, the N of 50mL is added in dye cup, N-dimethylacetylamide, is incubated 2h after being warming up to 95 DEG C, adds 150mL decamethylcyclopentaandoxane in temperature-rise period with 1 DEG C/min, dye-uptake is 100%, is poured out by solvent and reclaims;
In dye cup, add diethylenetriamine, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
In dye cup, add Cyanuric Chloride, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
Fabric is taken out, carries out neutralizing, washing, complete dyeing.
The degree of fixation using the fabric after the colouring method dyeing of the present embodiment is 99.2%.
Performance evaluation is carried out to the dyeing product that the REACTIVE DYES non-aqueous solvent dyeing method of the height look rate of the present embodiment obtains, evaluation result is as shown in table 3, and table 3 is the test data result of the product that the REACTIVE DYES non-aqueous solvent dyeing method of the high colour-fast rate of the present embodiment obtains.
Table 3
Embodiment 4
Present embodiments provide a kind of REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate, specifically comprise the following steps:
Be carry out preliminary treatment in the aqueous sodium carbonate of 20g/L by the cotton/wool of 10g (50% cotton+50% wool) blended knitted cloth in concentration, dry, then put into dye cup;
(3%o.m.f) Novacron supra black G dyestuff of 0.3g, the dimethyl sulfoxide (DMSO) of 50mL is added in dye cup, 2h is incubated after being warming up to 95 DEG C with 1 DEG C/min, in temperature-rise period, add 150mL tetrachloro-ethylene, dye-uptake is 100%, is poured out by solvent and reclaims;
In dye cup, add diethylenetriamine, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
In dye cup, add epoxychloropropane, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
Fabric is taken out, carries out neutralizing, washing, complete dyeing.
The degree of fixation using the fabric after the colouring method dyeing of the present embodiment is 99.5%.
Performance evaluation is carried out to the dyeing product that the REACTIVE DYES non-aqueous solvent dyeing method of the height look rate of the present embodiment obtains, evaluation result is as shown in table 4, and table 4 is the test data result of the product that the REACTIVE DYES non-aqueous solvent dyeing method of the high colour-fast rate of the present embodiment obtains.
Table 4
Embodiment 5
Present embodiments provide a kind of REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate, specifically comprise the following steps:
Be carry out preliminary treatment in the sodium bicarbonate aqueous solution of 40g/L by the cotton/fiber crops of 10g (60% cotton+40% fiber crops) blended knitted cloth in concentration, dry, then put into dye cup;
(3%o.m.f) Everzol Yellow 3RS dyestuff of 0.3g, the N of 50mL is added in dye cup, N-dimethylacetylamide, is incubated 2h after being warming up to 95 DEG C, adds 150mL normal heptane in temperature-rise period with 1 DEG C/min, dye-uptake is 100%, is poured out by solvent and reclaims;
In dye cup, add Macrogol 200, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
In dye cup, add hexandial, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
Fabric is taken out, carries out neutralizing, washing, complete dyeing.
The degree of fixation using the fabric after the colouring method dyeing of the present embodiment is 98.2%.
Performance evaluation is carried out to the dyeing product that the REACTIVE DYES non-aqueous solvent dyeing method of the height look rate of the present embodiment obtains, evaluation result is as shown in table 5, and table 5 is the test data result of the product that the REACTIVE DYES non-aqueous solvent dyeing method of the high colour-fast rate of the present embodiment obtains.
Table 5
Embodiment 6
Present embodiments provide a kind of REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate, specifically comprise the following steps:
Be carry out preliminary treatment in the aqueous sodium carbonate of 20g/L in concentration by the purified cotton yarns of 10g, dry, then put into dye cup;
In dye cup, add (3%o.m.f) Everzol Red 3BS dyestuff of 0.3g, the DMA of 50mL and 150mL isoheptane, be incubated 2h after being warming up to 95 DEG C with 1 DEG C/min, dye-uptake is 100%, is poured out by solvent and reclaims;
In dye cup, add polymine, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
In dye cup, add dicyanodiamine, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
Yarn is taken out, carries out neutralizing, washing, complete dyeing.
The degree of fixation using the dyestuff after the colouring method dyeing of the present embodiment is 98.3%.
Embodiment 7
Present embodiments provide a kind of REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate, specifically comprise the following steps:
Through the cotton of boiling-off be carry out preliminary treatment, dewatered drying in the aqueous sodium carbonate of 20g/L in concentration by 10g, then put into dye cup;
In dye cup, add (3%o.m.f) Everzol Red 3BS dyestuff of 0.3g, the dimethyl sulfoxide (DMSO) of 50mL and 150mL trichloro-ethylene, be incubated 2h after being warming up to 95 DEG C with 1 DEG C/min, dye-uptake is 100%, is poured out by solvent and reclaims;
In dye cup, add diethylenetriamine, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
In dye cup, add Adipoyl Chloride, the 100mL acetone of 1g, at 80 DEG C, be incubated 30min, solvent poured out and reclaims;
Fiber is taken out, carries out neutralizing, washing, complete dyeing.
The degree of fixation using the dyestuff after the colouring method dyeing of the present embodiment is 98.4%.
As seen from the above embodiment, the alkali consumption of the REACTIVE DYES non-aqueous solvent dyeing method of high colour-fast rate of the present invention is few, and can not discharge containing alkali waste water; Dye utilization rate is high, degree of fixation nearly 100%; After dyeing only with in a small amount of cold water and aqueous acetic acid and, soap without the need to high temperature, water consumption is little, is a kind of colouring method of high-efficiency environment friendly energy-conservation.

Claims (10)

1. a REACTIVE DYES non-aqueous solvent dyeing method for high colour-fast rate, it comprises the following steps:
Step one: it is 30%-200% that the aqueous solution that yarn, fabric or the ready-made clothes fiber or fiber made are placed in alkaline matter is swelling to liquid carrying rate, dries;
Step 2: yarn, fabric or ready-made clothes that the fiber after oven dry or fiber are made are mixed with the good solvent of REACTIVE DYES, REACTIVE DYES, adds the poor solvent of REACTIVE DYES, be incubated after being warming up to dyeing temperature; Wherein, the volume ratio of the good solvent of described REACTIVE DYES and the poor solvent of described REACTIVE DYES is 1:3-20; The ratio of the quality of yarn, fabric or ready-made clothes that the volume of the good solvent of described REACTIVE DYES is made with described fiber or fiber is 2-50:1, wherein, the volume unit of good solvent is mL, and the mass unit of yarn, fabric or ready-made clothes that fiber or fiber are made is g;
Step 3: the organic solution that yarn, fabric or ready-made clothes that the fiber after dyeing or fiber are made are placed in two or more nucleophilic group compound is incubated 0.5-2h at 40-80 DEG C, is then incubated 0.5-2h by the organic solution that yarn, fabric or ready-made clothes that the fiber after dyeing or fiber are made are placed in two or more electrophilic group compound at 40-80 DEG C;
Or, the organic solution that yarn, fabric or ready-made clothes that the fiber after dyeing or fiber are made are placed in two or more electrophilic group compound is incubated 0.5-2h at 40-80 DEG C; Then the organic solution that yarn, fabric or ready-made clothes that the fiber after dyeing or fiber are made are placed in two or more nucleophilic group compound is incubated 0.5-2h at 40-80 DEG C;
Or, yarn, fabric or ready-made clothes that the fiber after dyeing or fiber are made are placed in and at 40-80 DEG C, are incubated 0.5-2h with two or more electrophilic group compound with the organic solution of two or more nucleophilic group compound;
Wherein, the consumption with two or more nucleophilic group compound is 0.1%o.m.f-10%o.m.f, and yarn, fabric or ready-made clothes that the fiber after dyeing or fiber are made and the solid-liquid ratio with the organic solution of two or more nucleophilic group compound are 1:5-30; Consumption with two or more electrophilic group compound is 0.1%o.m.f-10%o.m.f, and yarn, fabric or ready-made clothes that the fiber after dyeing or fiber are made and the solid-liquid ratio with the organic solution of two or more electrophilic group compound are 1:5-30;
Step 4: yarn, fabric or ready-made clothes that taking-up fiber or fiber are made, carries out neutralizing, washing, completes dyeing;
Wherein, described fiber comprises cellulose fibre, protein fibre and has the combination of one or more in the synthetic fiber of reactive group;
Preferably, described reactive group comprises amino, hydroxyl, sulfydryl;
Preferably, described cellulose fibre comprises the combination of one or more in cotton fiber, fiber crops and viscose, and described protein fibre comprises wool and/or silk, described in there is reactive group synthetic fiber comprise nylon;
Described with the organic solvent in the organic solution of two or more nucleophilic group compound be can dissolve this with two or more nucleophilic group compound but not with the organic solvent of REACTIVE DYES generation chemical reaction;
Described with the organic solvent in the organic solution of two or more electrophilic group compound be can dissolve this with two or more electrophilic group compound but not with the organic solvent of REACTIVE DYES generation chemical reaction;
The good solvent of described REACTIVE DYES be can lytic activity dyestuff but not with the nonaqueous solvents of REACTIVE DYES generation chemical reaction; The poor solvent of described REACTIVE DYES be can not lytic activity dyestuff and not with the nonaqueous solvents of REACTIVE DYES generation chemical reaction;
The poor solvent of described REACTIVE DYES added or added in temperature-rise period before intensification.
2. non-aqueous solvent dyeing method according to claim 1, wherein, is warming up to dyeing temperature 80-130 DEG C of insulation 1-2h in step 2.
3. non-aqueous solvent dyeing method according to claim 1, wherein, the good solvent of described REACTIVE DYES is polar solvent; Preferably, the good solvent of described REACTIVE DYES comprises the combination of one or more in DMF, DMA, dimethyl sulfoxide (DMSO), ionic liquid and alcohol ether solvents.
4. non-aqueous solvent dyeing method according to claim 1, wherein, the poor solvent of described REACTIVE DYES comprises the combination of one or more in alkane, chloride hydro carbons, alkene, aromatic hydrocarbons, ketones solvent, silanes solvent, esters solvent and ether solvent; Preferably, the poor solvent of described REACTIVE DYES comprises C 6-C 8n-alkane, C 6-C 8isoparaffin, the combination of one or more in perchloroethylene and decamethylcyclopentaandoxane.
5. non-aqueous solvent dyeing method according to claim 1, wherein, described with the nucleophilic group in two or more nucleophilic group compound be can with the nucleophilic group of REACTIVE DYES generation chemical reaction; Preferably, describedly polyethylene polyamine, polymine, ethylene glycol, polyethylene glycol, multi-thiol and multi-thiol derivative is comprised with two or more nucleophilic group compound.
6. non-aqueous solvent dyeing method according to claim 1, wherein, described is the electrophilic group of reactive group generation chemical reaction in yarn, fabric or the ready-made clothes can made with described nucleophilic group and fiber or fiber with the electrophilic group in two or more electrophilic group compound; Preferably, describedly Cyanuric Chloride, cyanuric fluoride, binary acyl chlorides, 2D resin, polyurethane, urethane derivative, epoxychloropropane, dialdehyde and dicyandiamide is comprised with two or more electrophilic group compound.
7. non-aqueous solvent dyeing method according to claim 1, wherein, the ratio of the quality of yarn, fabric or ready-made clothes that the volume of the good solvent of described REACTIVE DYES is made with described fiber or fiber is 3-10:1, wherein, the volume unit of good solvent is mL, and the mass unit of yarn, fabric or ready-made clothes that fiber or fiber are made is g; Be preferably 3-10:1.
8. non-aqueous solvent dyeing method according to claim 1, wherein, described alkaline matter comprises M (CO 3) x, M (OH) y, M (H xp yo z), R 1r 2r 3n and R 4o -in the combination of one or more, wherein, M is metal ion, R 1, R 2, R 3, R 4be respectively alkyl or Hydrogen Proton, X, Y, Z are respectively the integer of 1-3.
9. non-aqueous solvent dyeing method according to claim 8, wherein, described alkaline matter comprises the combination of one or more in sodium carbonate, sodium bicarbonate, NaOH, lithium hydroxide and potassium hydroxide.
10. the non-aqueous solvent dyeing method according to claim 1,8 or 9, wherein, the concentration of the aqueous solution of described alkaline matter is 1g/L-100g/L; Preferably, the concentration of the aqueous solution of described alkaline matter is 5-50g/L.
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