CN105544243A - Low-temperature dyeing method for wool fabric employing reactive dye - Google Patents
Low-temperature dyeing method for wool fabric employing reactive dye Download PDFInfo
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- CN105544243A CN105544243A CN201511007181.1A CN201511007181A CN105544243A CN 105544243 A CN105544243 A CN 105544243A CN 201511007181 A CN201511007181 A CN 201511007181A CN 105544243 A CN105544243 A CN 105544243A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/38—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using reactive dyes
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
- D06P1/642—Compounds containing nitrogen
- D06P1/6426—Heterocyclic compounds
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/653—Nitrogen-free carboxylic acids or their salts
- D06P1/6533—Aliphatic, araliphatic or cycloaliphatic
-
- 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
- D06P1/67341—Salts or hydroxides of elements different from the alkaline or alkaline-earth metals or with anions containing those elements
-
- 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
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/14—Wool
Abstract
The invention discloses a low-temperature dyeing method for wool fabric employing a reactive dye. The method comprises a mixed dye solution preparation step, a fabric pretreatment step, a dyeing step, a post-treatment step and the like. The wool fabric is pretreated by an ionic liquid; and scales of wool fibers are partially stripped, so that barriers, of fatty acid, a cystine disulfide bond and the like, of affecting diffusion of dyes and chemical reagents toward the inside of the fibers are destroyed; and the hydrophilicity of the wool fibers is improved. Moreover, soluble rare-earth chloride is added to the dye solution, so that penetration of dye molecules toward the inside of the wool fibers under a low-temperature condition is accelerated; and enhancement of the binding force between the dyes and the fibers is facilitated by electrostatic adsorption between the wool and a dye molecule complex. The low-temperature dyeing method is simple in step and convenient to operate; the dyeing rate and the fixation rate of the wool fabric are high; the dyed wool fabric is fluffy, and smooth in hand feeling; the strength of the wool fabric is reduced; and the yellowing is relatively small.
Description
Technical field
The present invention relates to fabric technical field, be specifically related to a kind of REACTIVE DYES low-temperature dyeing method of wool fabric.
Background technology
The traditional high-temp dyeing of wool is not only consumed energy greatly, and makes wool at high temperature suffer the effect of chemical reagent and heat, causes wool yellowing, greatly affect fiber appearance and physical and mechanical properties, the natural quality that destruction wool is excellent.Present Domestic is outer has villaumite oxidation pre-treatment method, formic acid method for pretreating, biology enzyme method for pretreating etc. about low temperature dyeing of wool method.No matter be DCCNa (DCCA) in villaumite oxidation pre-treatment method, or clorox, in use all can produce AOX, certain pollution is caused to environment; Because formic acid consumption is excessive in formic acid method for pretreating, have larger corrosiveness to equipment, and in can only contaminating, light color, and easily cause uneven dyeing, be difficult to promote; During biology enzyme method for pretreating, the concentration of enzyme and vigor are subject to more multifactorial impact, and too much enzyme preparation is drawn in human body, can produce larger adverse effect to human body.CN102409557A discloses a kind of method adopting ionic liquid preliminary treatment wool fabric before dyeing, ionic liquid is wherein butyl imidazole villaumite, at room temperature process wool surfaces with the binary solvent of ionic liquid and water composition, washing, dyeing temperature is 65 ~ 85 DEG C.Also the method for a kind of ionic liquid preliminary treatment wool fabric before dyeing is disclosed in CN102277754B, ionic liquid adopts methylimidazole bromine salt, methylimidazole villaumite and methylimidazole acetate, its preprocess method is at 60-80 DEG C by wool ionic liquid; under bath raio 1:10-30; process 5-20min; the ionic liquid adsorbed by wool shuts out and recovery and reusing and recycling, reclaims ionic liquid, use water rinse post-drying with ethanol purge wool.But wool itself, due to the existence of scale, has certain water repellency, major part ionic liquid has certain viscosity, its ionic liquid scale of construction going deep into wool fibre inside is less, finally shows as the preliminary treatment speed of ionic liquid to wool low, and preliminary treatment needs to take a long time.
Summary of the invention
The object of the invention is to overcome the defect existed in prior art, provide a kind of to wool fibre preliminary treatment effectively and the REACTIVE DYES low-temperature dyeing method of the high wool fabric of low temperature dye-uptake.
For realizing above-mentioned technique effect, technical scheme of the present invention is: a kind of REACTIVE DYES low-temperature dyeing method of wool fabric, is characterized in that, comprise the steps:
S1: configuration dye mixture solution, comprise REACTIVE DYES, glauber salt, solubility rare earth chloride, pH value regulator and water in dye mixture solution, wool fabric is 1:(0.02 ~ 0.045 with the ratio of the weight of REACTIVE DYES); Rare earth element in described solubility rare earth chloride is be selected from least one in light rare earth and middle rare earth, and wool fabric is 1:(0.001 ~ 0.005 with the ratio of the weight of rare earth chloride), the pH value of dye mixture solution is 4.5 ~ 5.5;
S2: fabric be impregnated in the mixed solution of ionic liquid and ethyl acetate, and process 10 ~ 30min under being placed in the cryogenic conditions of less than-5 DEG C;
S3: S2 gained ionic liquid is warming up to 70 ~ 80 DEG C of insulation 0.5 ~ 2h, fabric is dried taking-up, then successively with ethyl acetate and water cleaning, dries;
S4: S3 gained fabric is immersed in S1 gained dye mixture solution, is warming up to 30 ~ 35 DEG C, insulation 2 ~ 5h, and then be warming up to 70 ~ 85 DEG C, lower the temperature after insulation 1 ~ 3h;
S5: take out fabric air dry, then repeatedly washes, dewatered drying, obtains the wool fabric after dyeing.
Adopt diluted ethyl acetate ionic liquid, and the surface tension of ionic liquid can be regulated, air under cryogenic conditions between wool surface scale shrinks, ionic liquid solution is guided to go deep in wool fibre, effectively the scale layer on wool top layer is partly divested, improve the hydrophily of wool surfaces, eliminate the obstacle that scale adsorbs dye molecule and spreads in fiber, improve dyeability.
Rare earth element is added in dye mixture solution, utilize the strong permeability of rare earth ion and strong diffusivity, accelerate the rapid osmotic of dye molecule, in addition, the negative electricity electrostatic attraction of positively charged rare earth ion and wool fibre, wool fibre inside can be goed deep into, can determine the group generation coordination of wool whiteness to ensure the xanthochromia that before and after dyeing, wool color is less with the lysine residual bond etc. that exposes after ionic liquid process in wool fibre.
Reactive dye for wool Dye up-take is under mildly acidic conditions the highest, in order to ensure that dye mixture solution pH value is stable and suitable with wool isoelectric point, preferred technical scheme is, described pH value regulator is be selected from citric acid-sodium citrate buffering to the one with acetic acid-acetate buffer centering.
Preferred technical scheme is, described solubility rare earth chloride is be selected from least one in praseodymium chloride, neodymium chloride, samarium trichloride and gadolinium chloride.Adding of above-mentioned four kinds of rare earth ions improves obviously to the dye-uptake of dyestuff and dyefastness, uniform coloring, and due to rare earth ion activity stronger, the reactivity of itself and wool fibre much larger than trivalent chromium, through also can improve the phenomenon of the inclined green glow of wool that trivalent chromium causes containing the dye mixture solution of solubility rare earth chloride.
Preferred technical scheme is that described solubility rare earth chloride is that neodymium chloride and gadolinium chloride mix, and the percentage by weight that gadolinium chloride accounts for solubility rare earth chloride is 10 ~ 30% further.Neodymium chloride and gadolinium chloride have stronger Swelling Functions for wool, and the wool microstructure after process is full, contribute to the intensity improving the rear wool fibre of dyeing.
Preferred technical scheme is, described dye mixture solution also comprises levelling agent, and described levelling agent is polyethenoxy ether class surfactant.Active group on rare earth ion and dye molecule is had an effect and is generated stable macromolecular complex thing, compared with micromolecular dye molecule, the surface energy of macromolecular complex thing is lower, polyethenoxy ether class surfactant add the dispersion not only contributing to above-mentioned macromolecular complex thing, the gathering between above-mentioned macromolecular complex thing can also be stoped, improve the dyeing rate under cryogenic conditions.
Preferred technical scheme is, the cryogenic conditions in described S2 is-15 ~-5 DEG C.Water transform in wool internal void after freezing processing is solid-state, by large for the support of wool internal void, wool fibre microstate is fuller, also can promote that ionic liquid gos deep in above-mentioned aperture simultaneously, contributes to that the scale layer of ionic liquid to wool top layer is more effective to be divested; But the too low brute force that can affect wool fibre of temperature, fabric mechanical strength declines obviously.
Preferred technical scheme is, described wool fabric is 1:(0.005 ~ 0.02 with the ratio of the weight of glauber salt); Wool fabric is 1:(0.02 ~ 0.05 with the ratio of the weight of levelling agent).Helping of rare earth ion contaminates activity by force, the consumption of glauber salt in dye solution can be reduced, adding of glauber salt can improve the degree of fixation of dyestuff in wool fabric, glauber salt addition is excessive also can be caused rare earth ion and dye molecule to react the macromolecular complex thing generated assembling, be unfavorable for improving dye-uptake.
Preferred technical scheme is, the heating rate again heated up in S4 is 1 ~ 1.5 DEG C/min.
Preferred technical scheme is, also comprises hydrogen peroxide and thiocarbamide in described dye mixture solution, and in dye mixture solution, the molar concentration of hydrogen peroxide is 0.03 ~ 0.06mol/L, and in dye mixture solution, the molar concentration of hydrogen peroxide is 0.005 ~ 0.015mol/L.Hydrogen peroxide has certain discoloration to material before upper dye, avoids the phenomenon of expecting overall color and luster yellowing after dyeing.Although hydrogen peroxide and thiocarbamide can destroy the surface texture of wool fibre, but certain density Oxidizing and Reducing Agents destroys limited to wool fibre, hydrogen peroxide and thiocarbamide generation redox reaction can produce a large amount of free radicals, above-mentioned free radical can activate wool surface and dyestuff macromolecular complex thing, the adsorption capacity of further raising dyestuff and the covalent bond absorption stability between dyestuff and wool fibre, be beneficial to dye and fixation.
Preferred technical scheme is, described ionic liquid is be selected from least one in 1-isobutyl group-3-methyl imidazolium tetrafluoroborate ionic liquid, 1-butyl-3-methyl imidazolium tetrafluoroborate ionic liquid, 1-ethyl-3-methylimidazole tetrafluoroborate ion liquid.The slant acidity of methyl imidazolium tetrafluoroborate ionic liquid, and acidity is more weak, partly can divest the scale layer on wool top layer, reduces the further damage for divesting wool fibre after scale layer simultaneously.
Advantage of the present invention and beneficial effect are:
By adopting ionic liquid pretreatment wool fabric, the scale of wool fibre is partly divested, destroy aliphatic acid and cystine disulfide bond etc. and affect the barrier that dyestuff and chemical reagent spread to fibrous inside, improve the hydrophily of wool fibre, and by adding solubility rare earth chloride in dye solution, under accelerating cryogenic conditions, dye molecule to wool fibre internal void deeply, Electrostatic Absorption between wool and dye molecule complex compound also contributes to strengthening the adhesion between dyestuff and fiber, this low-temperature dyeing method step is simple, easy to operate, the upper dye of wool fabric and degree of fixation high, wool fabric after dyeing is fluffy, feel is smooth, the brute force of wool fabric decline and xanthochromia all less.
Detailed description of the invention
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Embodiment 1:
Embodiment 1(is called for short S1, and following embodiment is identical) the REACTIVE DYES low-temperature dyeing method of wool fabric comprise the steps:
S1: configuration dye mixture solution, comprise REACTIVE DYES, glauber salt, solubility rare earth chloride, pH value regulator and water in dye mixture solution, wool fabric is 1:0.02 with the ratio of the weight of REACTIVE DYES; Rare earth element in described solubility rare earth chloride is be selected from least one in light rare earth and middle rare earth, and wool fabric is 1:0.001 with the ratio of the weight of rare earth chloride, and the pH value of dye mixture solution is 4.5; PH value regulator is citric acid; Solubility rare earth chloride is lanthanum chloride, and wool fabric is 1:0.05 with the ratio of the weight of glauber salt;
S2: fabric be impregnated in the mixed solution of ionic liquid and ethyl acetate, and process 10min under being placed in the cryogenic conditions of-5 DEG C; The percentage by weight of mixed solution intermediate ion liquid is 50%; Ionic liquid is 1-allyl-3-methylimidazole acetate.
S3: S2 gained ionic liquid is warming up to 70 DEG C of insulation 0.5h, fabric is dried taking-up, then successively with ethyl acetate and water cleaning, dries;
S4: S3 gained fabric is immersed in S1 gained dye mixture solution, is warming up to 30 DEG C, insulation 2h, and then be warming up to 70 DEG C, lower the temperature after insulation 1h; The heating rate again heated up in S4 is 1 DEG C/min
S5: take out fabric air dry, then repeatedly washes, dewatered drying, obtains the wool fabric after dyeing.
Embodiment 2
Embodiment 2 is with the difference of embodiment 1:
S1: configuration dye mixture solution, comprise REACTIVE DYES, glauber salt, solubility rare earth chloride, pH value regulator and water in dye mixture solution, wool fabric is 1:0.045 with the ratio of the weight of REACTIVE DYES; Rare earth element in described solubility rare earth chloride is be selected from least one in light rare earth and middle rare earth, and wool fabric is 1:0.005 with the ratio of the weight of rare earth chloride, and the pH value of dye mixture solution is 5.5; Solubility rare earth chloride is the mixing of praseodymium chloride and samarium trichloride 1:1; PH value regulator is that citric acid-sodium citrate buffering is right;
S2: fabric be impregnated in the mixed solution of ionic liquid and ethyl acetate, and process 30min under being placed in the cryogenic conditions of-15 DEG C; Ionic liquid is 1-ethyl-3-methylimidazole tetrafluoroborate ion liquid;
S3: S2 gained ionic liquid is warming up to 80 DEG C of insulation 2h, fabric is dried taking-up, then successively with ethyl acetate and water cleaning, dries;
S4: S3 gained fabric is immersed in S1 gained dye mixture solution, is warming up to 35 DEG C, insulation 5h, and then be warming up to 85 DEG C, lower the temperature after insulation 3h; The heating rate again heated up in S4 is 1.5 DEG C/min;
S5: take out fabric air dry, then repeatedly washes, dewatered drying, obtains the wool fabric after dyeing.
Embodiment 3
Embodiment 3 is with the difference of embodiment 1:
S1: configuration dye mixture solution, comprise REACTIVE DYES, glauber salt, solubility rare earth chloride, pH value regulator and water in dye mixture solution, wool fabric is 1:0.032 with the ratio of the weight of REACTIVE DYES; Rare earth element in described solubility rare earth chloride is be selected from least one in light rare earth and middle rare earth, and wool fabric is 1:0.003 with the ratio of the weight of rare earth chloride, and the pH value of dye mixture solution is 5; Solubility rare earth chloride is that neodymium chloride and gadolinium chloride mix, and the ratio of weight is 9:1; PH value regulator is acetic acid-acetate buffer pair; Wool fabric is 1:0.02 with the ratio of the weight of glauber salt.
S2: fabric be impregnated in the mixed solution of ionic liquid and ethyl acetate, and process 20min under being placed in the cryogenic conditions of less than-10 DEG C; Ionic liquid is 1-butyl-3-methyl imidazolium tetrafluoroborate ionic liquid;
S3: S2 gained ionic liquid is warming up to 75 DEG C of insulation 1.2h, fabric is dried taking-up, then successively with ethyl acetate and water cleaning, dries;
S4: S3 gained fabric is immersed in S1 gained dye mixture solution, is warming up to 32 DEG C, insulation 3.5h, and then be warming up to 77 DEG C, lower the temperature after insulation 2h; The heating rate again heated up in S4 is 1.25 DEG C/min;
S5: take out fabric air dry, then repeatedly washes, dewatered drying, obtains the wool fabric after dyeing.
Dye mixture solution also comprises levelling agent, and the addition of levelling agent is 0.02:1 with the ratio of wool fabric weight.
Embodiment 4
Embodiment 4 is with the difference of embodiment 3: ionic liquid is 1-isobutyl group-3-methyl imidazolium tetrafluoroborate ionic liquid solubility rare earth chloride is that neodymium chloride and gadolinium chloride mix, and the percentage by weight that gadolinium chloride accounts for solubility rare earth chloride is 20%; Wool fabric is 1:0.005 with the ratio of the weight of glauber salt; Also comprise hydrogen peroxide and thiocarbamide in dye mixture solution, in dye mixture solution, the molar concentration of hydrogen peroxide is 0.03mol/L, and in dye mixture solution, the molar concentration of hydrogen peroxide is 0.005mol/L.
Embodiment 5
Embodiment 5 is with the difference of embodiment 4: wool fabric is 1:0.01 with the ratio of the weight of glauber salt; Also comprise hydrogen peroxide and thiocarbamide in dye mixture solution, in dye mixture solution, the molar concentration of hydrogen peroxide is 0.06mol/L, and in dye mixture solution, the molar concentration of hydrogen peroxide is 0.015mol/L.
Embodiment 6
Embodiment 6 is distinguished as with embodiment 5: also comprise hydrogen peroxide and thiocarbamide in dye mixture solution, in dye mixture solution, the molar concentration of hydrogen peroxide is 0.045mol/L, and in dye mixture solution, the molar concentration of hydrogen peroxide is 0.03mol/L.
On the basis of embodiment 6, comparative example 1(is called for short D1, lower same): to ionic liquid pretreatment under comparative example 1 normal temperature condition.
Comparative example 2: do not add solubility rare earth chloride in the dye mixture solution of comparative example 2.
The Performance Detection of embodiment, comparative example sample:
1, randomly draw the wool fibre in 10 wool fabrics, adopt electronic mono-fiber strength machine to detect its brute force, average.
2, the dye-uptake of spectrophotometer to wool fabric is adopted to detect;
3, the feel of feel instrument to wool fabric is adopted to detect (I ~ V grade, I grade of pliability optimum);
722N type visible spectrophotometer is adopted to measure the absorbance A of stoste and the rear raffinate of dye
0and A
n, then the dye uptake of dyestuff on fiber is:
Dye-uptake=(1-A
nn
n/ A
0n
0) * 100%
A
n---the absorbance of raffinate;
A
0---the absorbance of blank dye liquor;
N
n---the extension rate of raffinate;
N
0---the extension rate of blank dye liquor.
Above-mentioned 1-3 detected value sees the following form:
By plumpness and the surface damage degree of microscopic examination fiber, scale all part strippings of embodiment 1-6 wool surface, the wool surface of embodiment 4-6 has a small amount of damage, and comparatively speaking, the wool fibre of embodiment 3 is more aobvious full.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a REACTIVE DYES low-temperature dyeing method for wool fabric, is characterized in that, comprise the steps:
S1: configuration dye mixture solution, comprise REACTIVE DYES, glauber salt, solubility rare earth chloride, pH value regulator and water in dye mixture solution, wool fabric is 1:(0.02 ~ 0.045 with the ratio of the weight of REACTIVE DYES); Rare earth element in described solubility rare earth chloride is be selected from least one in light rare earth and middle rare earth, and wool fabric is 1:(0.001 ~ 0.005 with the ratio of the weight of rare earth chloride), the pH value of dye mixture solution is 4.5 ~ 5.5;
S2: fabric be impregnated in the mixed solution of ionic liquid and ethyl acetate, and process 10 ~ 30min under being placed in the cryogenic conditions of less than-5 DEG C;
S3: S2 gained ionic liquid is warming up to 70 ~ 80 DEG C of insulation 0.5 ~ 2h, fabric is dried taking-up, then successively with ethyl acetate and water cleaning, dries;
S4: S3 gained fabric is immersed in S1 gained dye mixture solution, is warming up to 30 ~ 35 DEG C, insulation 2 ~ 5h, and then be warming up to 70 ~ 85 DEG C, lower the temperature after insulation 1 ~ 3h;
S5: take out fabric air dry, then repeatedly washes, dewatered drying, obtains the wool fabric after dyeing.
2. the REACTIVE DYES low-temperature dyeing method of wool fabric according to claim 1, is characterized in that, described pH value regulator is be selected from citric acid-sodium citrate buffering to the one with acetic acid-acetate buffer centering.
3. the REACTIVE DYES low-temperature dyeing method of wool fabric according to claim 1, is characterized in that, described solubility rare earth chloride is be selected from least one in praseodymium chloride, neodymium chloride, samarium trichloride and gadolinium chloride.
4. the REACTIVE DYES low-temperature dyeing method of wool fabric according to claim 3, is characterized in that, described solubility rare earth chloride is that neodymium chloride and gadolinium chloride mix, and the percentage by weight that gadolinium chloride accounts for solubility rare earth chloride is 10 ~ 30%.
5. the REACTIVE DYES low-temperature dyeing method of wool fabric according to claim 1, is characterized in that, described dye mixture solution also comprises levelling agent, and described levelling agent is polyethenoxy ether class surfactant.
6. the REACTIVE DYES low-temperature dyeing method of wool fabric according to claim 1, is characterized in that, the cryogenic conditions in described S2 is-15 ~-5 DEG C.
7. the REACTIVE DYES low-temperature dyeing method of wool fabric according to claim 1, is characterized in that, described wool fabric is 1:(0.005 ~ 0.02 with the ratio of the weight of glauber salt); Wool fabric is 1:(0.02 ~ 0.05 with the ratio of the weight of levelling agent).
8. the REACTIVE DYES low-temperature dyeing method of wool fabric according to claim 1, is characterized in that, the heating rate again heated up in S4 is 1 ~ 1.5 DEG C/min.
9. the REACTIVE DYES low-temperature dyeing method of wool fabric according to claim 1, it is characterized in that, hydrogen peroxide and thiocarbamide is also comprised in described dye mixture solution, in dye mixture solution, the molar concentration of hydrogen peroxide is 0.03 ~ 0.06mol/L, and in dye mixture solution, the molar concentration of hydrogen peroxide is 0.005 ~ 0.015mol/L.
10. the REACTIVE DYES low-temperature dyeing method of wool fabric according to claim 1, it is characterized in that, described ionic liquid is be selected from least one in 1-isobutyl group-3-methyl imidazolium tetrafluoroborate ionic liquid, 1-butyl-3-methyl imidazolium tetrafluoroborate ionic liquid, 1-ethyl-3-methylimidazole tetrafluoroborate ion liquid.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108560285A (en) * | 2018-05-28 | 2018-09-21 | 江苏阳光股份有限公司 | A kind of grape pigment one bath dyeing technology of wool fabric |
| CN108951228A (en) * | 2018-06-04 | 2018-12-07 | 江阴兴吴呢绒科技有限公司 | A kind of dyeing of wool fabric |
| CN109098017A (en) * | 2018-08-27 | 2018-12-28 | 江苏阳光股份有限公司 | A kind of reactive dyeing process of cashmere |
| CN110512440A (en) * | 2019-09-16 | 2019-11-29 | 江苏阳光股份有限公司 | A kind of dyeing flame retardant method for sorting of wool suiting |
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| CN109098017A (en) * | 2018-08-27 | 2018-12-28 | 江苏阳光股份有限公司 | A kind of reactive dyeing process of cashmere |
| CN110512440A (en) * | 2019-09-16 | 2019-11-29 | 江苏阳光股份有限公司 | A kind of dyeing flame retardant method for sorting of wool suiting |
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