CN102733189A - Method for raising dyeing performance of linen through modification by use of 1-butyl-3-methylimidazolium chloride ionic liquid - Google Patents
Method for raising dyeing performance of linen through modification by use of 1-butyl-3-methylimidazolium chloride ionic liquid Download PDFInfo
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- CN102733189A CN102733189A CN2012102255824A CN201210225582A CN102733189A CN 102733189 A CN102733189 A CN 102733189A CN 2012102255824 A CN2012102255824 A CN 2012102255824A CN 201210225582 A CN201210225582 A CN 201210225582A CN 102733189 A CN102733189 A CN 102733189A
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Abstract
According to the invention, bast-fibre or fabric is used as a raw material and can be modified by the use of a 1-butyl-3-methylimidazolium chloride ionic liquid ([Bmim]Cl) to substantially raise the dyeing performance of direct dyestuff or reactive dye on linen. The advantage of the invention lies in that 1-butyl-3-methylimidazolium chloride ionic liquid ([Bmim]Cl) is a high-efficiency cellulose swelling agent and has a simple treatment process. In addition, it is safe and nontoxic when processing by the use of the ionic liquid, and the ionic liquid can be recovered and utilized after the treatment, so as to reduce discharge of a large amount of high-density alkali waste liquid after traditional treatment. The dyeing performance of the modified bast-fibre or fabric, such as ramie, flax and hemp can be raised. High dye uptake can be also reached even without the addition of salt, which helps minimize the amount of salt during the dyeing process and reduce the dyeing cost.
Description
Technical field
The present invention relates to a kind ofly bast-fibre or fabric carried out modification to improve the method for its dyeability, belong to the applied technical field of textile industry dyeing and finishing processing with 1-butyl-3-methylimidazole villaumite ([Bmim] Cl) ionic liquid.Adopt the present invention when improving numb dyeability, to reduce pollution, help the production that cleans of dyeing environment.
Background technology
Since flax fibre have intensity big, conduct heat fast, breathe freely, performance such as mothproof and wear-resisting, so adopt the numb textiles of processing to enjoy the consumer to favor always.But degree of crystallinity and the orientation index of fiber crops are all very high; This causes flax fibre thick and stiff; Dye molecule and other chemical reagent are difficult in the fibrous inside diffusion, have all brought a lot of difficulties to its dyeing and arrangement processing, this numb modification have been become the focus of domestic and international research.
The chemical reagent that can be used for numb modification has alkali, liquefied ammonia, cuoxam, potassium permanganate, cation reagent etc., and still the modification of fiber crops remains with alkaline process and is modified as the master at present.But alkaline process modifying process caustic soda consumption is excessive, and this makes that the pH value of waste water after handling is very high, and environment is had severe contamination.Along with " green weaving " notion people's going deep in the heart, in order to save energy consumption to greatest extent, reduce and pollute, reduce the injury of industry to human body, it is extremely urgent to study numb method of modifying novel, environmental protection.
As a kind of novel green solvent; Ionic liquid have at normal temperatures low volatilization, nonflammable, solvability strong, low toxicity and be prone to characteristics such as recovery; This makes it recently obtain extensive use in the more than ten years, but the research report that ionic liquid is used for the fibre modification aspect also seldom.At home, Hu Renzhi etc. utilize imidazoles-ion liquid aqueous solution of fluoboric acid class that ramie is handled, and handle back ramie dyeability and promote
[1]Chen Pu
[2]Deng with 1-butyl-3-methylimidazole bromine salt ([Bmim] Br) ionic liquid and 1-butyl-3-methyl imidazolium tetrafluoroborate ([Bmim] BF
4) ionic liquid carries out preliminary treatment to ramie, also obtain certain dyeing and promoted effect.But the two used ionic liquid all is not the ionic liquid that cellulose is had better solvability; What wherein Hu Renzhi was used is the ion liquid aqueous solution; This and pure ionic liquid have essential distinction, according to some early-stage Study results, in the case; Ionic liquid aqueous solution is similar to a kind of surfactant, and this and pure ionic liquid are different fully to the mechanism of modification of ramie.[Bmim] BF that Chen Pu adopts
4Then being proved to be main chemical is that cellulosic ramie does not have dissolution; And [Bmim] Br ionic liquid is a kind of solid at normal temperatures; Therefore dissolve temperature required higherly, aspect the crudefiber crop modification, ion liquid effect does not also really obtain paying attention to.
With [Bmim] BF
4[Bmim] Br ionic liquid is compared; 1-butyl-3-methylimidazole villaumite ([Bmim] Cl) ionic liquid has stronger dissolving and swelling ability to cellulose; And [Bmim] Cl ionic liquid is the intermediate that most ionic liquids are produced; Its production cost is lower, is the ionic liquid that has obtained suitability for industrialized production at present.Therefore; If this ionic liquid is incorporated in the modification process of fiber crops, utilizes it that cellulosic strong solvability is carried out modification to fiber crops and handle, thereby reduce the impurity of removing the fiber crops surface; And then the crystal region content of part reduction fiber crops, then help to improve the dyeability of fiber crops.
List of references
[1] Hu Renzhi, Zhang Bolan, Zhang Yongjin, etc. ion liquid modified ramee property research [J]. Wuhan University Of Science and Engineering's journal, 2004,17 (5): 25-28.
[2] Chen Pu. the preparation of glyoxaline ion liquid reaches at ramie fabric Application of Dyeing [D]: [master thesis]. Henan: Zhongyuan Technical Faculty.
[3]Swatloski?R?P，Spear?S?K，Holbrey?J?D，Rogers?RD.Dissolution?of?cellulose?with?ionic?liquids，Journal?of?the?American?Chemical?Society，2002，124：4974-4975.
Summary of the invention
The present invention is intended to adopt a kind of novel efficient green solvent---and 1-butyl-3-methylimidazole villaumite ([Bmim] Cl) ionic liquid carries out modification to fiber crops, thereby improves the Color of fiber crops.Use the present invention can improve direct dyes and the dye-uptake of REACTIVE DYES, the consumption of salt in the reduction dyeing course to fiber crops.
Main solution of the present invention:
1. the preliminary treatment of fiber crops: the fiber crops that will slough in advance behind the pectin are cleaned and oven dry, and oven dry back control sample regain is in 5%.
2. ionic liquid is handled: will clean flax fibre or fabric after oven dry is handled and drop into and carry out constant temperature in 1-butyl-3-methylimidazole villaumite ([Bmim] Cl) ionic liquid and handle; Treatment temperature is 70 ℃-130 ℃ (best between 80 ℃-100 ℃); Processing time is 1min-60min (best between 2min-20min); At the uniform velocity stir in the processing procedure, even to guarantee treatment effect.
3. handle back sample washing methods: after disposing, at first the ionic liquid that adheres on fiber or the fabric is rolled, wash afterwards and dry.
4. colouring method: adopt conventional direct dyes and reactive dyestuffs in exhaustion technology, but the salt consumption is the 0-50% of consumption in the normal dyeing technology.
The specific embodiment
The present invention explains with following embodiment, but the present invention is not limited to following embodiment, before and after not breaking away from, in the scope of said aim, changes and implements to be included in the technical scope of the present invention.
Embodiment one:
Sample: ramee
A. preliminary treatment: the ramee after will coming unstuck is cleaned and oven dry, oven dry back sample regain 5%.
B. ionic liquid is handled: will clean in ramee input 1-butyl-3-methylimidazole villaumite ([Bmim] Cl) ionic liquid after oven dry is handled and carry out the constant temperature processing; Treatment temperature is 80 ℃; Processing time is 10min, at the uniform velocity stirs in the processing procedure, guarantees that treatment effect is even.
C. handle back sample washing methods: after disposing, at first the ionic liquid that adheres on the fiber is rolled, wash afterwards and dry.
D. colouring method: adopt conventional reactive dyestuffs in exhaustion technology, the salt consumption be in the normal dyeing technology consumption 50%.Through after the above-mentioned PROCESS FOR TREATMENT, the fiber dye-uptake after butyl-3-methylimidazole villaumite ([Bmim] Cl) is ion liquid modified through 1-is 75%, and the ramee dye-uptake improves 14% than being untreated.
Embodiment two:
Sample: ramie fabric
A. preliminary treatment: the ramie fabric after will coming unstuck is cleaned and oven dry, oven dry back sample regain 5%.
B. ionic liquid is handled: will clean in ramie fabric input 1-butyl-3-methylimidazole villaumite ([Bmim] Cl) ionic liquid after oven dry is handled and carry out the constant temperature processing; Treatment temperature is 80 ℃; Processing time is 10min, at the uniform velocity stirs in the processing procedure, guarantees that treatment effect is even.
C. handle back sample washing methods: after disposing, at first the ionic liquid that adheres on the fabric is rolled, wash afterwards and dry.
D. colouring method: adopt conventional direct dyes exhaust process, the salt consumption be in the normal dyeing technology consumption 50%.
Through after the above-mentioned PROCESS FOR TREATMENT, the fabric dye-uptake after butyl-3-methylimidazole villaumite ([Bmim] Cl) is ion liquid modified through 1-is 83%, improves 8% than untreated fabric dye-uptake.
Embodiment three:
Sample: linen fibre
A. preliminary treatment: the linen fibre after will coming unstuck is cleaned and oven dry, oven dry back sample regain 4%.
B. ionic liquid is handled: will clean in linen fibre input 1-butyl-3-methylimidazole villaumite ([Bmim] Cl) ionic liquid after oven dry is handled and carry out the constant temperature processing; Treatment temperature is 120 ℃; Processing time is 2min, at the uniform velocity stirs in the processing procedure, guarantees that treatment effect is even.
C. handle back sample washing methods: after disposing, at first the ionic liquid that adheres on the fiber is rolled, wash afterwards and dry.
D. colouring method: adopt conventional direct dyes exhaust process, the salt consumption be in the normal dyeing technology salt consumption 30%.
Through after the above-mentioned PROCESS FOR TREATMENT, the fiber dye-uptake after butyl-3-methylimidazole villaumite ([Bmim] Cl) is ion liquid modified through 1-is 78%, improves 15% than untreatment fiber dye-uptake.
Embodiment four:
Sample: sodolin
A. preliminary treatment: the sodolin after will coming unstuck is cleaned and oven dry, oven dry back sample regain 4%.
B. ionic liquid is handled: will clean in sodolin input 1-butyl-3-methylimidazole villaumite ([Bmim] Cl) ionic liquid after oven dry is handled and carry out the constant temperature processing; Treatment temperature is 100 ℃; Processing time is 15min, at the uniform velocity stirs in the processing procedure, guarantees that treatment effect is even.
C. handle back sample washing methods: after disposing, at first the ionic liquid that adheres on the fabric is rolled, wash afterwards and dry.
D. colouring method: adopt conventional direct dyes exhaust process, the salt consumption be in the normal dyeing technology consumption 10%.
Through after the above-mentioned PROCESS FOR TREATMENT, the fabric dye-uptake after butyl-3-methylimidazole villaumite ([Bmim] Cl) is ion liquid modified through 1-is 80%, improves 9% than untreated fabric dye-uptake.
Embodiment five:
Sample: china-hemp fibers
A. preliminary treatment: the china-hemp fibers after will coming unstuck is cleaned and oven dry, oven dry back sample regain 5%.
B. ionic liquid is handled: will clean in china-hemp fibers input 1-butyl-3-methylimidazole villaumite ([Bmim] Cl) ionic liquid after oven dry is handled and carry out the constant temperature processing; Treatment temperature is 80 ℃; Processing time is 10min, at the uniform velocity stirs in the processing procedure, guarantees that treatment effect is even.
C. handle back sample washing methods: after disposing, at first the ionic liquid that adheres on the fiber is rolled, wash afterwards and dry.
D. colouring method: adopt conventional reactive dyestuffs in exhaustion technology, the salt consumption be in the normal dyeing technology consumption 10%.
Through after the above-mentioned PROCESS FOR TREATMENT, the fiber dye-uptake after butyl-3-methylimidazole villaumite ([Bmim] Cl) is ion liquid modified through 1-is 78%, and the china-hemp fibers dye-uptake improves 16% than being untreated.
Embodiment six:
Sample: Chinese linen
A. preliminary treatment: the Chinese linen after will coming unstuck is cleaned and oven dry, oven dry back sample regain 5%.
B. ionic liquid is handled: will clean in Chinese linen input 1-butyl-3-methylimidazole villaumite ([Bmim] Cl) ionic liquid after oven dry is handled and carry out the constant temperature processing; Treatment temperature is 80 ℃; Processing time is 10min, at the uniform velocity stirs in the processing procedure, guarantees that treatment effect is even.
C. handle back sample washing methods: after disposing, at first the ionic liquid that adheres on the fabric is rolled, wash afterwards and dry.
D. colouring method: adopt conventional direct dyes exhaust process, the salt consumption be in the normal dyeing technology consumption 10%.
Through after the above-mentioned PROCESS FOR TREATMENT, the fabric dye-uptake after butyl-3-methylimidazole villaumite ([Bmim] Cl) is ion liquid modified through 1-is 81%, improves 14% than untreated fabric dye-uptake.
Claims (4)
1. the present invention " improves the 1-butyl-ion liquid modified method of 3-methylimidazole villaumite of numb dyeability "; Having it is characterized in that adopting novel cellulose high-efficiency environment friendly solvent---1-butyl-3-methylimidazole villaumite ionic liquid carries out modification to fiber crops, improves direct dyes and REACTIVE DYES to the dye-uptakes of fiber crops and reduce the consumption of salt.Its method of modifying may further comprise the steps:
A. preprocess method: the fiber crops that will slough in advance behind the pectin are cleaned and oven dry, and oven dry back control sample regain is in 5%.
B. processing method: will clean flax fibre or fabric after oven dry is handled and drop into and carry out constant temperature in the ionic liquid and handle; Treatment temperature is 70 ℃-130 ℃ (best between 80 ℃-100 ℃); Processing time is 1min-60min (best between 2min-20min); At the uniform velocity stir in the processing procedure, even to guarantee treatment effect.
C. handle back sample washing methods: after disposing, at first the ionic liquid that adheres on fiber or the fabric is rolled, adopt ethanol that sample is washed afterwards, wash at last and dry.
2. the 1-butyl of the numb dyeability of the raising according to claim 1-ion liquid modified method of 3-methylimidazole villaumite is characterized in that adopting 1-butyl-3-methylimidazole villaumite ionic liquid as modifier.
3. the 1-butyl of the numb dyeability of the raising according to claim 1-ion liquid modified method of 3-methylimidazole villaumite; It is characterized in that the fiber crops that are suitable for handling are fiber or the fabric after coming unstuck; The kind of fiber crops is mainly ramie, flax and Chinese fiber crops, also can be jute, sisal hemp, bluish dogbane etc.
4. the 1-butyl of the numb dyeability of the raising according to claim 1-ion liquid modified method of 3-methylimidazole villaumite, it is characterized in that handling the suitable dyestuff of back textile dyeing is direct dyes and REACTIVE DYES.
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Cited By (7)
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|---|---|---|---|---|
| CN104313703A (en) * | 2014-09-24 | 2015-01-28 | 大连工业大学 | Ionic liquid-based ramie degumming pretreatment method |
| CN105484025A (en) * | 2015-12-24 | 2016-04-13 | 西南大学 | Prickle and itch feeling-resisting finishing method for ramie fabric by imidazole ionic liquid |
| CN105544243A (en) * | 2015-12-30 | 2016-05-04 | 江阴市长泾花园毛纺织有限公司 | Low-temperature dyeing method for wool fabric employing reactive dye |
| 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 |
| CN113047033A (en) * | 2021-03-03 | 2021-06-29 | 安徽工程大学 | Method for improving printing and dyeing chemical performance of bamboo shoot shell fibers |
| WO2022067886A1 (en) * | 2020-09-29 | 2022-04-07 | 绍兴迈宝科技有限公司 | Method for preparing environmentally friendly surface-modified cotton fiber |
| CN114592346A (en) * | 2022-03-07 | 2022-06-07 | 中国农业科学院麻类研究所 | Preparation method of fibrilia wig |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104313703A (en) * | 2014-09-24 | 2015-01-28 | 大连工业大学 | Ionic liquid-based ramie degumming pretreatment method |
| 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 |
| CN105484025A (en) * | 2015-12-24 | 2016-04-13 | 西南大学 | Prickle and itch feeling-resisting finishing method for ramie fabric by imidazole ionic liquid |
| CN105544243A (en) * | 2015-12-30 | 2016-05-04 | 江阴市长泾花园毛纺织有限公司 | Low-temperature dyeing method for wool fabric employing reactive dye |
| CN105544243B (en) * | 2015-12-30 | 2018-07-06 | 江阴市长泾花园毛纺织有限公司 | A kind of reactive dye low-temperature dyeing method of wool fabric |
| WO2022067886A1 (en) * | 2020-09-29 | 2022-04-07 | 绍兴迈宝科技有限公司 | Method for preparing environmentally friendly surface-modified cotton fiber |
| CN113047033A (en) * | 2021-03-03 | 2021-06-29 | 安徽工程大学 | Method for improving printing and dyeing chemical performance of bamboo shoot shell fibers |
| CN114592346A (en) * | 2022-03-07 | 2022-06-07 | 中国农业科学院麻类研究所 | Preparation method of fibrilia wig |
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Application publication date: 20121017 |