CN102277754A - Method of wool surface modification and low temperature dyeing - Google Patents
Method of wool surface modification and low temperature dyeing Download PDFInfo
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Abstract
The invention relates to a method of wool surface modification and low temperature dyeing, and the technical scheme is that the method comprises the following steps: treating wool with ionic liquid at 60-80 DEG C for 5-20 minutes with a bath ratio of 1:10-30, squeezing out and recovering the ionic liquid adsorbed by the wool for regeneration and utilization, washing the wool with ethanol, recovering the ionic liquid, rinsing the wool with water and drying; dyeing the treated wool in an acid dye or a reactive dye at 60-80 DEG C for 60-80 minutes, with a bath ratio of 1:20-40, after dyeing, taking the wool out, soaping, washing with water, dewatering and drying. The invention treats wool with ionic liquid; the process is simple; the ionic liquid can be recovered for recycle; the modification process causes no environment pollution; the modified wool has a low dyeing temperature, which is suitable for energy saving; the color yield is high, which improves the utilization rate of the dye; and the lustre sensation and wearability of the wool are improved.
Description
Technical field
The present invention relates to technical field of textile printing, be specifically related to a kind of wool surface modification and low-temperature dyeing method thereof.
Background technology
Wool is a kind of important natural fabric, owing to have good hygroscopicity, resilience, feel and snugness of fit, be widely used in the high-grade weaving face fabric, but wool fibre has complicated physics and chemical constitution, its top layer has special scale layer structure, because the quality of scale layer is hard, densification is hydrophobic, totally unfavorable to dying in the dye molecule absorption, stop dyestuff to spread to fibrous inside simultaneously, therefore, 95-100 ℃ of high-temp dyeing generally adopted in the dyeing of wool.Yet high-temp dyeing not only energy consumption is big, has increased the dyeing cost, and wool is under the high-temp dyeing condition, and the effect of heating and chemical reagent easily makes the natural style of wool be destroyed, as the gorgeous degree step-down of color, feel hardening, powerful decline, resilience descends, be unfavorable for the processing of next procedure, influence its aesthetic values, wearability descends, degradation under the competitiveness in market, the low temperature dyeing of therefore researching and developing wool is significant.
In order to improve the dyeability of wool, numerous process for modifying surface has appearred.What industrial use was maximum is the chloridizing surface modification, but the chloride that discharges easily causes the environmental pollution of water body, and American-European countries forbids.People have also attempted technology such as low temperature plasma, corona irradiation, Liquid Ammonia Treatment and biological enzyme hydrolysis, though they are very little to the pollution level of environment, and equal separately defectiveness.Such as low temperature plasma, corona irradiation technique and Liquid Ammonia Treatment have equipment requirement height, be subjected to problems such as device-restrictive with the compatibility difference and the disposal ability of other technology, have restricted their practical applications at dyeing and finishing industry; Though and the biology enzyme treatment technology has mild condition, the characteristics of selectivity height and environmental protection, because the wool scale layer has stronger hydrophobicity and chemical inertness, biology enzyme is difficult to work to it, must carry out chemical treatment to wool.
Ionic liquid (Ionic Liquids is abbreviated as IL) is a kind of novel " green solvent ".It is made of organic cation and inorganic/organic anion, in room temperature or near the salt compounds that is liquid condition under the room temperature.Ionic liquid has excellent physicochemical characteristics, does not have vapour pressure as under the room temperature, and heat endurance and good conductivity can reclaim and use repeatedly etc.Ionic liquid is the solvent of a kind of strong polarity, low coordination ability, and multiple organic compound of solubilized and inorganic compound have the incomparable special performance of a lot of organic solvents.Because of ionic liquid has high-solvency, advantage such as pollution-free, recyclable, obtained extensive use at aspects such as fibrolysis and regeneration, fibre modifications.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of wool surface modification and low-temperature dyeing method thereof.The present invention has realized the low temperature dyeing of wool, has the raising dyeability, and without sewage discharge reduces energy consumption, characteristics such as ionic liquid recycle.
The technical scheme that the present invention addresses the above problem comprises the steps:
A. ionic liquid surface treatment: wool is flooded modification with ionic liquid handle, treatment conditions: bath raio is 1:10-30, treatment temperature is 60-80 ℃, processing time is 5-20min, after disposing, the ionic liquid that wool is adsorbed shuts out to the ionic liquid of handling, and with ethanol wool is washed then, the ethanol washing lotion is preserved in washing at last and in 80 ℃ of oven dry.
B. low temperature dyeing: with low temperature dyeing: the wool that ionic liquid was handled dyes dyeing condition with ACID DYES or REACTIVE DYES: bath raio is 1:20-40, and dyeing temperature is 60-80 ℃, dyeing time is 60-80min, behind woolen dyed the finishing, through soaping, washing, dehydration, oven dry.
C. ionic liquid regeneration: add deionized water in the ionic liquid of handling,, remove by filter sediment, filtrate 80 ℃ of decompressions on Rotary Evaporators are dewatered, promptly obtain the ionic liquid of regenerating up to sediment regeneration not.
D. ethanol intermediate ion liquids recovery: the ethanol washing lotion among the step a is removed sediment after filtration, removes ethanol with 60 ℃ of decompressions of Rotary Evaporators then, and the ionic liquid that obtains handling carries out ion liquid regeneration with step c method.
Described acid dyeing technical recipe of above-mentioned steps b and condition comprise: ACID DYES accounts for the heavy 0.3-3% of fiber, glauber salt accounts for the heavy 5-10% of fiber, be adjusted to pH4.5-5.5 with acetic acid or acetic acid-sodium acetate, going into to dye temperature is 30-40 ℃, heating rate is 1-3 ℃/min, dyeing temperature is 60-80 ℃, temperature retention time 60-80min, and bath raio is 1:20-40.
Described reactive dyeing technical recipe of above-mentioned steps b and condition comprise: hair property REACTIVE DYES accounts for the heavy 0.3-3% of fiber, ammonium sulfate accounts for the heavy 1-2% of fiber, glauber salt accounts for the heavy 5-10% of fiber, be adjusted to pH4.5-5.5 with acetic acid or acetic acid-sodium acetate, going into to dye temperature is 30-40 ℃, and heating rate is 1-3 ℃/min, and dyeing temperature is 60-80 ℃, temperature retention time 60-80min, bath raio is 1:20-40.
Above-mentioned wool can be pure loose wool fiber, pure wool top, pure wool yarn, pure wool fabric.
The ionic structure feature of above-mentioned steps a intermediate ion liquid is as follows:
Wherein, R1=C
nH
2n-1, n=1,2; R2=C
mH
2m-1, 1＜m＜10, A
-=Cl
-, Br
-, CH3COO
-
Furthermore, described ionic liquid intermediate ion is 1-butyl-3-methylimidazole villaumite ([Bmim] Cl), 1-butyl-3-methylimidazole bromine salt ([Bmim] Br), 1-butyl-3-methylimidazole acetate ([Bmim] Ac), 1-ethyl-3-methylimidazole villaumite ([Emim] Cl), 1-ethyl-3-methylimidazole bromine salt ([Emim] Br), 1-ethyl-3-methylimidazole acetate ([Emim] Ac), 1-allyl-3-methylimidazole villaumite ([Amim] Cl), 1-allyl-3-methylimidazole bromine salt ([Amim] Br), any one in the 1-allyl-3-methylimidazole acetate ([Amim] Ac).
Beneficial effect of the present invention is: (1) ionic liquid of the present invention is handled the method on wool surface, can be effectively the scale layer on wool top layer be partly divested, improve the hydrophily on wool surface, eliminated scale in fiber, improved dyeability the obstacle that dye molecule adsorbs and spreads, realize the low temperature dyeing of wool, compare with traditional chloridizing surface modification, without sewage discharge, no volatilization gas produces, ionic liquid can be recycled, environmental protection.(2) the low temperature dyeing energy consumption that can avoid high-temp dyeing to bring is big, and the gorgeous degree of coloured light is low, Boardy Feeling, and problem such as powerful low has energy-saving and emission-reduction and improves wool quality and take the advantage of performance.
The specific embodiment
Embodiment 1:
Wool kind: pure loose wool fiber.
Ionic liquid is handled: ionic liquid is selected 1-ethyl-3-methylimidazole bromine salt ([Emim] Br) for use; bath raio is 1:30; 80 ℃ of treatment temperatures; the processing time is 20mim, after handling, the ionic liquid that adheres on the fiber is rolled to the ionic liquid of handling; the fiber after the processing washs with ethanol; washing at last, and 80 ℃ of oven dry, preserves the ethanol washing lotion.
Acid dyeing: with the fiber acid dyeing after the ionic liquid processing, it is 1% that ACID DYES accounts for fiber weight percentage, it is 10% that glauber salt accounts for fiber weight percentage; bath raio is 1:40, to 4.5-5.5, goes into to dye 30 ℃ of temperature; be warmed up to 60 ℃ with 2 ℃/min with the acetic acid adjust pH; insulation dyeing 80min, after dyeing is finished, soaps, washes, dewaters, dries.
Ionic liquid regeneration: add deionized water in the ionic liquid of handling, up to sediment regeneration not, remove by filter sediment, filtrate 80 ℃ of decompressions on Rotary Evaporators are dewatered, promptly obtain the ionic liquid of regenerating, the ionic liquid of regeneration can be recycled.
Ethanol intermediate ion liquids recovery: above-mentioned ethanol washing lotion is removed sediment after filtration, remove ethanol with 60 ℃ of decompressions of Rotary Evaporators then, the ionic liquid that obtains handling, the ionic liquid of handling reclaims and utilization again through above-mentioned ionic liquid regeneration step.
Embodiment 2:
Wool kind: pure wool yarn.
Ionic liquid is handled: ionic liquid is selected 1-butyl-3-methylimidazole villaumite ([Bmim] Cl) for use; bath raio is 1:10; 80 ℃ of treatment temperatures; the processing time is 5mim, after handling, the ionic liquid that adheres on the fiber is rolled to the ionic liquid of handling; the fiber after the processing washs with ethanol; washing at last, and 80 ℃ of oven dry, preserves the ethanol washing lotion.
Acid dyeing: with the wool yarn acid dyeing after the ionic liquid processing, it is 1% that ACID DYES accounts for fiber weight percentage, it is 5% that glauber salt accounts for fiber weight percentage; bath raio is 1:20, to 4.5-5.5, goes into to dye 40 ℃ of temperature; be warmed up to 70 ℃ with 2 ℃/min with the acetic acid adjust pH; insulation dyeing 70min, after dyeing is finished, soaps, washes, dewaters, dries.
Other steps are consistent with embodiment 1.
Embodiment 3:
Wool kind: pure wool fabric.
Ionic liquid is handled: ionic liquid is selected 1-butyl-3-methylimidazole acetate ([Bmim] Ac) for use; bath raio is 1:20; 70 ℃ of treatment temperatures; the processing time is 8mim, after handling, the ionic liquid that adheres on the fiber is rolled to the ionic liquid of handling; the fiber after the processing washs with ethanol; washing at last, and 80 ℃ of oven dry, preserves the ethanol washing lotion.
Acid dyeing: with the pure wool fabric acid dyeing after the ionic liquid processing, it is 0.3% that ACID DYES accounts for fiber weight percentage, it is 8% that glauber salt accounts for fiber weight percentage; bath raio is 1:30, to 4.5-5.5, goes into to dye 35 ℃ of temperature; be warmed up to 80 ℃ with 3 ℃/min with the acetic acid adjust pH; insulation dyeing 60min, after dyeing is finished, soaps, washes, dewaters, dries.
Other steps are consistent with embodiment 1.
Embodiment 4:
Wool kind: pure wool fabric.
Ionic liquid is handled: ionic liquid is selected 1-ethyl-3-methylimidazole acetate ([Emim] Ac) for use; bath raio is 1:20; 60 ℃ of treatment temperatures; the processing time is 10mim, after handling, the ionic liquid that adheres on the fiber is rolled to the ionic liquid of handling; the fiber after the processing washs with ethanol; washing at last, and 80 ℃ of oven dry, preserves the ethanol washing lotion.
Reactive dyeing: the pure wool fabric after the ionic liquid processing is dyeed with reactive dye for wool, it is 2% that reactive dye for wool accounts for fiber weight percentage, it is 2% that ammonium sulfate accounts for fiber weight percentage, and it is 7% that glauber salt accounts for fiber weight percentage, and bath raio is 1:20, with the acetic acid adjust pH to 4.5-5.5, go into to dye 40 ℃ of temperature, be warmed up to 70 ℃, insulation dyeing 80min with 2 ℃/min, after dyeing is finished, soap, wash, dewater, dry.
Other steps are consistent with embodiment 1.
Embodiment 5:
Wool kind: pure wool yarn.
Ionic liquid is handled: ionic liquid is selected 1-allyl-3-methylimidazole villaumite ([Amim] Cl) for use; bath raio is 1:10; 80 ℃ of treatment temperatures; the processing time is 5mim, after handling, the ionic liquid that adheres on the fiber is rolled to the ionic liquid of handling; the fiber after the processing washs with ethanol; washing at last, and 80 ℃ of oven dry, preserves the ethanol washing lotion.
Reactive dyeing: the wool yarn after the ionic liquid processing is dyeed with reactive dye for wool, it is 2% that reactive dye for wool accounts for fiber weight percentage, it is 2% that ammonium sulfate accounts for fiber weight percentage, and it is 10% that glauber salt accounts for fiber weight percentage, bath raio 1:20, with the acetic acid adjust pH to 4.5-5.5, go into to dye 30 ℃ of temperature, be warmed up to 60 ℃, insulation dyeing 80min with 2 ℃/min, after dyeing is finished, soap, wash, dewater, dry.
Other steps are consistent with embodiment 1.
Embodiment 6:
Wool kind: pure loose wool fiber.
Ionic liquid is handled: ionic liquid is selected 1-allyl-3-methylimidazole acetate ([Amim] Ac) for use; bath raio is 1:30; 70 ℃ of treatment temperatures; the processing time is 5mim, after handling, the ionic liquid that adheres on the fiber is rolled to the ionic liquid of handling; the fiber after the processing washs with ethanol; washing at last, and 80 ℃ of oven dry, preserves the ethanol washing lotion.
Reactive dyeing: the wool yarn after the ionic liquid processing is dyeed with reactive dye for wool, it is 3% that reactive dye for wool accounts for fiber weight percentage, it is 2% that ammonium sulfate accounts for fiber weight percentage, and it is 10% that glauber salt accounts for fiber weight percentage, and bath raio is 1:40, use acetic acid adjust pH: 4.5-5.5, go into to dye 35 ℃ of temperature, be warmed up to 70 ℃, insulation dyeing 80min with 2 ℃/min, after dyeing is finished, soap, wash, dewater, dry.
Other steps are consistent with embodiment 1.
Embodiment 7:
Wool kind: pure wool fabric.
Ionic liquid is handled: ionic liquid is selected 1-allyl-3-methylimidazole bromine salt ([Amim] Br) for use; bath raio is 1:10; 70 ℃ of treatment temperatures; the processing time is 10mim, after handling, the ionic liquid that adheres on the fiber is rolled to the ionic liquid of handling; the fiber after the processing washs with ethanol; washing at last, and 80 ℃ of oven dry, preserves the ethanol washing lotion.
Reactive dyeing: with the wool fabric reactive dyeing after the ionic liquid processing, it is 0.3% that reactive dye for wool accounts for fiber weight percentage, it is 1% that ammonium sulfate accounts for fiber weight percentage, and it is 5% that glauber salt accounts for fiber weight percentage, and bath raio is 1:30, with acetic acid-sodium acetate adjust pH to 4.5-5.5, go into to dye 40 ℃ of temperature, be warmed up to 70 ℃, insulation dyeing 70min with 1 ℃/min, after dyeing is finished, soap, wash, dewater, dry.
Other steps are consistent with embodiment 1.
Embodiment 8:
Wool kind: pure wool yarn.
Ionic liquid is handled: ionic liquid is selected 1-butyl-3-ethyl imidazol(e) villaumite ([Beim] Cl) for use; bath raio is 1:20; 70 ℃ of treatment temperatures; the processing time is 20mim, after handling, the ionic liquid that adheres on the fiber is rolled to the ionic liquid of handling; the fiber after the processing washs with ethanol; washing at last, and 80 ℃ of oven dry, preserves the ethanol washing lotion.
Acid dyeing: with the wool yarn acid dyeing after the ionic liquid processing, it is 3% that ACID DYES accounts for fiber weight percentage, it is 8% that glauber salt accounts for fiber weight percentage; bath raio is 1:30, to 4.5-5.5, goes into to dye 40 ℃ of temperature; be warmed up to 80 ℃ with 1 ℃/min with the acetic acid adjust pH; insulation dyeing 80min, after dyeing is finished, soaps, washes, dewaters, dries.
Other steps are consistent with embodiment 1.
Embodiment 9:
Wool kind: pure wool fabric.
Ionic liquid is handled: ionic liquid is selected 1-octyl group-3-methylimidazole villaumite ([Omim] Cl) for use; bath raio is 1:30; 80 ℃ of treatment temperatures; the processing time is 20mim, after handling, the ionic liquid that adheres on the fiber is rolled to the ionic liquid of handling; the fiber after the processing washs with ethanol; washing at last, and 80 ℃ of oven dry, preserves the ethanol washing lotion.
Reactive dyeing: the wool fabric after the ionic liquid processing is dyeed with reactive dye for wool, it is 0.3% that reactive dye for wool accounts for fiber weight percentage, it is 2% that ammonium sulfate accounts for fiber weight percentage, and it is 5% that glauber salt accounts for fiber weight percentage, and bath raio is 1:20, with acetic acid-sodium acetate adjust pH to 4.5-5.5, go into to dye 40 ℃ of temperature, be warmed up to 60 ℃, insulation dyeing 60min with 2 ℃/min, after dyeing is finished, soap, wash, dewater, dry.
Other steps are consistent with embodiment 1.
Embodiment 10:
Wool kind: pure wool top.
Ionic liquid is handled: ionic liquid is selected 1-butyl-3-methylimidazole bromine salt ([Bmim] Br) for use; bath raio is 1:30; 80 ℃ of treatment temperatures; the processing time is 20mim, after handling, the ionic liquid that adheres on the fiber is rolled to the ionic liquid of handling; the fiber after the processing washs with ethanol; washing at last, and 80 ℃ of oven dry, preserves the ethanol washing lotion.
Reactive dyeing: the wool fabric after the ionic liquid processing is dyeed with reactive dye for wool, it is 0.3% that reactive dye for wool accounts for fiber weight percentage, it is 2% that ammonium sulfate accounts for fiber weight percentage, and it is 5% that glauber salt accounts for fiber weight percentage, and bath raio is 1:20, with acetic acid-sodium acetate adjust pH to 4.5-5.5, go into to dye 40 ℃ of temperature, be warmed up to 80 ℃, insulation dyeing 80min with 3 ℃/min, after dyeing is finished, soap, wash, dewater, dry.
Other steps are consistent with embodiment 1.
Claims (9)
1. wool surface modification and low-temperature dyeing method thereof is characterized in that: comprise the steps:
A. ionic liquid surface treatment: wool is flooded modification with ionic liquid handle, treatment conditions: bath raio is 1:10-30, treatment temperature is 60-80 ℃, processing time is 5-20min, after disposing, the ionic liquid that wool is adsorbed shuts out to the ionic liquid of handling, and with ethanol wool is washed then, the ethanol washing lotion is preserved in washing at last and in 80 ℃ of oven dry;
B. low temperature dyeing: the wool that ionic liquid was handled dyes dyeing condition with ACID DYES or REACTIVE DYES: bath raio is 1:20-40, and dyeing temperature is 60-80 ℃, dyeing time is 60-80min, behind woolen dyed the finishing, through soaping, washing, dehydration, oven dry;
C. ionic liquid regeneration: add deionized water in the ionic liquid of handling,, remove by filter sediment, filtrate 80 ℃ of decompressions on Rotary Evaporators are dewatered, promptly obtain the ionic liquid of regenerating up to sediment regeneration not;
D. ethanol intermediate ion liquids recovery: the ethanol washing lotion among the step a is removed sediment after filtration, removes ethanol with 60 ℃ of decompressions of Rotary Evaporators then, and the ionic liquid that obtains handling carries out the ionic liquid regeneration with the described method of step c.
2. wool surface modification according to claim 1 and low-temperature dyeing method thereof is characterized in that: described wool is pure loose wool fiber, pure wool top, pure wool yarn, pure wool fabric.
3. wool surface modification according to claim 1 and low-temperature dyeing method thereof is characterized in that: the architectural feature of the intermediate ion of ionic liquid described in the step a is as follows:
Wherein, R1=C
nH
2n-1, n=1,2; R2=C
mH
2m-1, 1＜m＜10, A
-=Cl
-, Br
-, CH3COO
-
4. wool surface modification according to claim 3 and low-temperature dyeing method thereof, it is characterized in that: the described ionic liquid intermediate ion of step a is 1-butyl-3-methylimidazole villaumite, 1-butyl-3-methylimidazole bromine salt, 1-butyl-3-methylimidazole acetate, 1-ethyl-3-methylimidazole villaumite, 1-ethyl-3-methylimidazole bromine salt, 1-ethyl-3-methylimidazole acetate, 1-allyl-3-methylimidazole villaumite, 1-allyl-3-methylimidazole bromine salt, any one in 1-allyl-3-methylimidazole acetate.
5. wool surface modification according to claim 1 and low-temperature dyeing method thereof, it is characterized in that: the described acid dyeing of step b comprises following technical recipe: it is 0.3-3% that ACID DYES accounts for fiber weight percentage, and it is 5-10% that glauber salt accounts for fiber weight percentage.
6. wool surface modification according to claim 1 and low-temperature dyeing method thereof is characterized in that: the described acid dyeing of step b comprises that also following process conditions: pH is 4.5-5.5, and going into to dye temperature is 30-40 ℃, and heating rate is 1-3 ℃/min.
7. wool surface modification according to claim 1 and low-temperature dyeing method thereof, it is characterized in that: the described reactive dyeing of step b comprises following technical recipe: it is 0.3-3% that hair property REACTIVE DYES accounts for fiber weight percentage, it is 1-2% that ammonium sulfate accounts for fiber weight percentage, and it is 5-10% that glauber salt accounts for fiber weight percentage.
8. wool surface modification according to claim 1 and low-temperature dyeing method thereof is characterized in that: the described reactive dyeing of step b comprises that also following process conditions: pH is 45-5.5, and going into to dye temperature is 30-40 ℃, and heating rate is 1-3 ℃/min.
9. according to claim 6 or 8 described wool surface modification and low-temperature dyeing methods thereof, it is characterized in that: described acid dyeing of step b and reactive dyeing process conditions, utilize acetic acid or acetic acid-sodium acetate to regulate pH value.
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| CN102733189A (en) * | 2012-06-29 | 2012-10-17 | 江南大学 | Method for raising dyeing performance of linen through modification by use of 1-butyl-3-methylimidazolium chloride ionic liquid |
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| CN105544242A (en) * | 2015-12-30 | 2016-05-04 | 江阴市长泾花园毛纺织有限公司 | Low-temperature dyeing technology for wool fabric |
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| CN105908538A (en) * | 2016-05-19 | 2016-08-31 | 太仓协大申泰羊毛衫有限公司 | Process for printing and dyeing wool fabric |
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| CN102733189A (en) * | 2012-06-29 | 2012-10-17 | 江南大学 | Method for raising dyeing performance of linen through modification by use of 1-butyl-3-methylimidazolium chloride ionic liquid |
| CN103266501A (en) * | 2013-06-13 | 2013-08-28 | 太仓协大申泰羊毛衫有限公司 | Low-temperature cashmere dyeing method adopting ionic liquid for pretreatment |
| CN104294673A (en) * | 2014-09-24 | 2015-01-21 | 安徽省中彩印务有限公司 | Dyeing process of acid dyes |
| CN105780465A (en) * | 2014-12-22 | 2016-07-20 | 常熟市虹桥印染有限公司 | Dyeing method of coral fleece textile |
| CN105780548A (en) * | 2014-12-22 | 2016-07-20 | 常熟市虹桥印染有限公司 | Dyeing method of wool fabric |
| CN105544242A (en) * | 2015-12-30 | 2016-05-04 | 江阴市长泾花园毛纺织有限公司 | Low-temperature dyeing technology for wool fabric |
| CN105544242B (en) * | 2015-12-30 | 2018-01-09 | 江阴市长泾花园毛纺织有限公司 | A kind of low temperature dyeing technique of wool fabric |
| CN105908538A (en) * | 2016-05-19 | 2016-08-31 | 太仓协大申泰羊毛衫有限公司 | Process for printing and dyeing wool fabric |
| CN106758315A (en) * | 2016-12-06 | 2017-05-31 | 南京九致信息科技有限公司 | The colouring method of trehalose modified woolen fiber |
| CN106758315B (en) * | 2016-12-06 | 2019-02-22 | 南京九致信息科技有限公司 | The colouring method of trehalose modified woolen fiber |
| CN108729264A (en) * | 2018-05-28 | 2018-11-02 | 江苏阳光股份有限公司 | A kind of woolen dyed pre-treating technology |
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