CN103388188A - Method for preparing colorful fiber from waste clothes - Google Patents
Method for preparing colorful fiber from waste clothes Download PDFInfo
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- CN103388188A CN103388188A CN2013103236187A CN201310323618A CN103388188A CN 103388188 A CN103388188 A CN 103388188A CN 2013103236187 A CN2013103236187 A CN 2013103236187A CN 201310323618 A CN201310323618 A CN 201310323618A CN 103388188 A CN103388188 A CN 103388188A
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- duds thing
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Abstract
The invention relates to a method for preparing colorful fiber from waste clothes. The method comprises the following steps: cleanly rinsing the waste clothes by using water, washing, and baking and drying the waste clothes to achieve constant weight; cutting the waste clothes into pieces, uniformly mixing the pieces with ionic liquid, and stirring to dissolve for 1-15 hours at 25-130 DEG C to obtain a solution of which the mass percentage concentration of solute is 7-20 percent; and defoaming, spinning, washing and airing to obtain the color fiber. The method is simple in process, convenient to operate, pollution-free and friendly to workers and environment; the recycling and utilizing values of the waste clothes are promoted.
Description
Technical field
The invention belongs to the preparation field of textile fabric, particularly a kind of method of utilizing discarded duds thing to prepare colored fiber.
Background technology
The main method of colored fibre production has original liquid coloring method and decoration method original liquid coloring method to be applicable to the various fibres that close, and colouring agent is mixed in spinning solution or spinning melt.The employing of dyeing rule has the dyestuff of affinity to resin or fiber, as poly-vinegar soluble dye and cation dyes etc.When the primary colors colouring is produced colored fibre, to having relatively high expectations of original liquid coloring agent.At first in colouring agent, the pigment particles size can be dispersed in spinning solution or melt uniformly and stably, in addition, also require strong coloring force, bright, and can adapt to each physics in polymerization spinning production process, chemical process to requirements such as the heat-resisting anti-solvent of colouring agent, acid and alkali resistances.
Colored fibre also can be mixed with two or more different colours fiber, and for example obtain new coloured light: blue color fibre and yellow fibers are mixed, can obtain approximate light green color.Mixed appropriate blue color fibre in grey color fibre, can obtain the grey dyed yarn with blue streak equally, can also utilize colored fibre to mix the dyed yarn that obtains the different depths by different proportion from similar white fiber.Can be on conventional production equipment but all can not solve, spin the problem of lovely luster, colored fibre that aberration is little.Ionic liquid dissolves natural fabric and synthetic fiber as a kind of green organic solvent, its dissolution route is exactly that first swelling take amorphous area and crystal region is as main, and then break macromolecular ordered arrangement and intermolecular crosslinked, ionic liquid can overcome solid barrier and the macromolecular repulsive force of crystal region, increased the chance that ionic liquid contacts with the fibrous inside lateral ties, thereby make that the fiber macromolecular chain is loosening, slippage, separation, form finally the spinning solution that mixes.Adopt wet spinning to obtain monochromatic fiber, or, according to dyestuff addition mixing rule, carry out spinning after spinning solution is mixed according to different proportion, can obtain the colored fiber of different colours.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of utilizing discarded duds thing to prepare colored fiber, and the method technique is simple, and is easy to operate, and green non-pollution, to staff and environmental friendliness, promotes the duds thing and again reclaims and value.
A kind of method of utilizing discarded duds thing to prepare colored fiber of the present invention comprises:
(1) discarded clothes is clean with water rinse, then Organic Alcohol cleans, and bakes and is dried to constant weight;
(2) discarded clothes is shredded, then with ionic liquid, mix, under 25-130 ℃ of condition, stirring and dissolving 1-15h, obtain the solution that the solute mass percentage concentration is 7-20%, then carries out deaeration, spinning, washes, dries, and obtains colored fiber.
In described step (1), discarded clothes is synthetic fiber clothing and/or natural fabric clothing.
Described synthetic fiber clothing composition is a kind of in terylene, polyamide fibre, acrylic fibers.
Described natural fabric clothing composition is a kind of in cotton, fiber crops, hair, silk, regenerated cellulose.
Organic Alcohol is a kind of in methyl alcohol, ethanol in described step (1).
Described step (2) intermediate ion liquid is a kind of in imidazoles, pyridines, benzimidazole ionic liquid.
Described ionic liquid is 1-butyl-3-methylimidazole villaumite ionic liquid.
In described step (2), deaeration is that temperature is 25-80 ℃, pressure 0.01MPa-0.1MPa.
In described step (2), spinning process adopts solution wet spinning, technological parameter is: coagulating bath is that volume ratio is a kind of in the Organic Alcohol of 95:5 and deionized water that ionic liquid, volume ratio are 95:5 and ionic liquid, pure water, and coagulation bath temperature is 20-30 ℃.
Described organic solvent is absolute ethyl alcohol or methyl alcohol.
The detailed process of described wet spinning is: the solution that is 7-20% to the solubility after dissolving becomes spinning solution to enter manifold after filtration, there is agitator to continue to stir, temperature is controlled at 30-50 ℃, use Organic Alcohol/ionic liquid (volume ratio is 95/5) or deionized water/ionic liquid (volume ratio is 95/5) or pure water to do coagulating bath, coagulation bath temperature is controlled at 20-30 ℃ and makes spray silk liquid coagulation forming, makes spun filament; The control draw ratio is carried out drawing-off to spun filament, and heat-shaping, soaked 24 hours in coagulating bath, with spun filament drawing-off 0.5-2 doubly, cleaning, dry, coiling.
Described coagulating bath is the mixed solution of deionized water and Organic Alcohol or running water and Organic Alcohol, and the percentage composition of alcohol is 0-100%.
The present invention need not the auxiliary agents such as other modifying agents, surfactant while reclaiming discarded duds thing, prepares the regrowth solvent composition very simple, is ionic liquid in principle.Fragment and the ionic liquid of discarded natural fabric or synthetic fiber duds thing are mixed, form mixed solution under temperature action, mixed liquor is poured on film-forming plates, and then after vacuum defoamation film forming, made mixed solution is placed in suitable container, put into suitable coagulating bath film-forming, after curing, the taking-up washing is dried and is got final product biology again.So the simple process discarded object, do not produce auxiliary agent and pollute, and solves the pollution problem of waste water.Can be on conventional production equipment, spin lovely luster, colored fibre that aberration is little.
Specifically, the present invention design provides a kind of and utilizes discarded duds thing to prepare the method and technology of colored fiber.Namely applying above-mentioned ionic liquid is that solvent dissolves synthetic fiber, natural fabric etc., and the mixed solution that dissolves rear formation is regenerated.
When reclaiming discarded duds thing, only contain required synthetic fiber, natural fabric and ionic liquid in mixed solution.Can implement under the experiment condition of routine, with this understanding, the solubility of discarded object in time, temperature and changing, in order to time and temperature, controlling solubility.
Beneficial effect
(3) the selected ionic liquid of the present invention can, as the solvent of natural fabric and synthetic fiber, therefore, can pass through
Blend processing is spun into fiber;
(4) the inventive method technique is simple, and is easy to operate, and green non-pollution, to staff and environmental friendliness, promotes the duds thing and again reclaims and value;
(5) can the present invention solve and spin lovely luster, colored fibre problem that aberration is little on conventional production equipment.
The specific embodiment
, below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only are not used in and limit the scope of the invention for explanation the present invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
After cellulose fibre is the discarded duds thing cleaning-drying of large red of raw material, the discarded object raw material is cut into 1-5mm, be dissolved in 1-butyl-3-methylimidazole bromine salt ion liquid, 110 ℃ of temperature, under churned mechanically effect, dissolve 9h, obtain solubility and be 13% mixed solution, become after filtration spinning solution to enter manifold this solution, have agitator to continue to stir, temperature is controlled at 30 ℃, uses deionized water/ionic liquid (volume ratio is 95/5) to do coagulating bath, coagulation bath temperature is controlled at 25 ℃ and makes spray silk liquid coagulation forming, makes spun filament.Control draw ratio spun filament is carried out drawing-off, and heat-shaping.Soaked in coagulating bath 24 hours, with 0.5 times of spun filament drawing-off, after 5 washings, dry, reel, can obtain red fiber.This filament is done strong: 1.6CN/dtex is wet strong: 1.1CN/dtex, dried stretching: 26%.
Embodiment 2
After acrylic fibers are the discarded duds thing cleaning-drying of yellow of raw material, the discarded object raw material is cut into 1-5mm, be dissolved in 1-butyl-3-methylimidazole bromine salt ion liquid, 90 ℃ of temperature, under churned mechanically effect, dissolve 5h, obtain solubility and be 10% mixed solution, become after filtration spinning solution to enter manifold this solution, have agitator to continue to stir, temperature is controlled at 30 ℃, uses absolute ethyl alcohol/ionic liquid (volume ratio is 95/5) to do coagulating bath, coagulation bath temperature is controlled at 30 ℃ and makes spray silk liquid coagulation forming, makes spun filament.Control draw ratio spun filament is carried out drawing-off, and heat-shaping.Soaked in coagulating bath 24 hours, with 1 times of spun filament drawing-off, after 5 washings, dry, reel, can obtain yellow fibers.This filament intensity 3.5CN/dtex, elongation: 33%.
Embodiment 3
After blue wool fabric and the discarded duds thing cleaning-drying of blue acrylic fibers, the discarded object raw material is cut into 1-5mm, be dissolved in 1-butyl-3-methylimidazole villaumite ionic liquid, 125 ℃ of temperature, under churned mechanically effect, dissolve 9h, obtain solubility and be 9% mixed solution, become after filtration spinning solution to enter manifold this solution, have agitator to continue to stir, temperature is controlled at 20 ℃, uses deionized water/ionic liquid (volume ratio is 95/5) to do coagulating bath, coagulation bath temperature is controlled at 20 ℃ and makes spray silk liquid coagulation forming, makes spun filament.Control draw ratio spun filament is carried out drawing-off, and heat-shaping.Soaked in coagulating bath 24 hours, with 1.5 times of spun filament drawing-offs, after 5 washings, dry, reel, can obtain blue fiber.This filament intensity 3.5CN/dtex, elongation: 29%.
Embodiment 4
After cellulose fibre is the blueness of raw material, red discarded duds thing cleaning-drying, the discarded object raw material is cut into 1-5mm, be dissolved in 1-butyl-3-methylimidazole villaumite ionic liquid, 110 ℃ of temperature, under churned mechanically effect, dissolve 9h, obtain solubility and be 17% mixed solution, become after filtration spinning solution to enter manifold this solution, have agitator to continue to stir, temperature is controlled at 40 ℃, uses deionized water to do coagulating bath, coagulation bath temperature is controlled at 30 ℃ and makes spray silk liquid coagulation forming, makes spun filament.Control draw ratio spun filament is carried out drawing-off, and heat-shaping.Soaked in coagulating bath 24 hours, with 1 times of spun filament drawing-off, after 5 washings, dry, reel, can obtain the inclined to one side blue light fiber of purple.This filament is done strong: 1.7CN/dtex is wet strong: 1.1CN/dtex, dried stretching: 26%.
Claims (10)
1. one kind is utilized discarded duds thing to prepare the method for colored fiber, comprising:
(1) discarded clothes is clean with water rinse, then Organic Alcohol cleans, and bakes and is dried to constant weight;
(2) discarded clothes is shredded, then with ionic liquid, mix, under 25-130 ℃ of condition, stirring and dissolving 1-15h, obtain the solution that the solute mass percentage concentration is 7-20%, then carries out deaeration, spinning, washes, dries, and obtains colored fiber.
2. a kind of method of utilizing discarded duds thing to prepare colored fiber according to claim 1, it is characterized in that: in described step (1), discarded clothes is synthetic fiber clothing and/or natural fabric clothing.
3. a kind of method of utilizing discarded duds thing to prepare colored fiber according to claim 2 is characterized in that: described synthetic fiber clothing composition is a kind of in terylene, polyamide fibre, acrylic fibers.
4. a kind of method of utilizing discarded duds thing to prepare colored fiber according to claim 2 is characterized in that: a kind of in cotton, fiber crops, hair, silk, regenerated cellulose of described natural fabric clothing composition.
5. a kind of method of utilizing discarded duds thing to prepare colored fiber according to claim 1 is characterized in that: in described step (1), Organic Alcohol is a kind of in methyl alcohol, ethanol.
6. a kind of method of utilizing discarded duds thing to prepare colored fiber according to claim 1, it is characterized in that: described step (2) intermediate ion liquid is a kind of in imidazoles, pyridines, benzimidazole ionic liquid.
7. a kind of method of utilizing discarded duds thing to prepare colored fiber according to claim 6, it is characterized in that: described ionic liquid is 1-butyl-3-methylimidazole villaumite ionic liquid.
8. a kind of method of utilizing discarded duds thing to prepare colored fiber according to claim 1, it is characterized in that: in described step (2), deaeration is that temperature is 25-80 ℃, pressure 0.01MPa-0.1MPa.
9. a kind of method of utilizing discarded duds thing to prepare colored fiber according to claim 1, it is characterized in that: in described step (2), spinning process adopts solution wet spinning, technological parameter is: coagulating bath is that volume ratio is a kind of in the Organic Alcohol of 95:5 and deionized water that ionic liquid, volume ratio are 95:5 and ionic liquid, pure water, and coagulation bath temperature is 20-30 ℃.
10. a kind of method of utilizing discarded duds thing to prepare colored fiber according to claim 9, it is characterized in that: described organic solvent is absolute ethyl alcohol or methyl alcohol.
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| CN201310323618.7A CN103388188B (en) | 2013-07-30 | 2013-07-30 | A kind ofly discarded duds thing is utilized to prepare the method for colored fiber |
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| CN201310323618.7A CN103388188B (en) | 2013-07-30 | 2013-07-30 | A kind ofly discarded duds thing is utilized to prepare the method for colored fiber |
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Cited By (7)
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| CN105860582A (en) * | 2016-04-18 | 2016-08-17 | 河南工程学院 | Waste-acrylic-fiber method for dye decoloring and recycling |
| CN107208325A (en) * | 2015-02-06 | 2017-09-26 | 连津格股份公司 | The recovery of man-made cellulose fibers |
| CN107904679A (en) * | 2017-12-18 | 2018-04-13 | 杭州新天元织造有限公司 | A kind of colored fiber regenerative system and its renovation process using discarded duds thing |
| CN110565202A (en) * | 2019-10-06 | 2019-12-13 | 武汉纺织大学 | Color-containing wool/polypropylene composite fiber and preparation method thereof |
| WO2021053272A1 (en) * | 2019-09-17 | 2021-03-25 | Aalto University Foundation Sr. | Lyocell fibers and methods of producing the same |
| CN113550019A (en) * | 2021-08-09 | 2021-10-26 | 西安工程大学 | Preparation method of colored regenerated cellulose conductive filament based on waste textile |
| WO2023034885A1 (en) * | 2021-08-31 | 2023-03-09 | Apani Systems Inc. | Textile recycling |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107208325A (en) * | 2015-02-06 | 2017-09-26 | 连津格股份公司 | The recovery of man-made cellulose fibers |
| CN105860582A (en) * | 2016-04-18 | 2016-08-17 | 河南工程学院 | Waste-acrylic-fiber method for dye decoloring and recycling |
| CN107904679A (en) * | 2017-12-18 | 2018-04-13 | 杭州新天元织造有限公司 | A kind of colored fiber regenerative system and its renovation process using discarded duds thing |
| WO2021053272A1 (en) * | 2019-09-17 | 2021-03-25 | Aalto University Foundation Sr. | Lyocell fibers and methods of producing the same |
| CN114402098A (en) * | 2019-09-17 | 2022-04-26 | 阿尔托大学基金会 | Lyocell fiber and production method thereof |
| CN110565202A (en) * | 2019-10-06 | 2019-12-13 | 武汉纺织大学 | Color-containing wool/polypropylene composite fiber and preparation method thereof |
| CN113550019A (en) * | 2021-08-09 | 2021-10-26 | 西安工程大学 | Preparation method of colored regenerated cellulose conductive filament based on waste textile |
| CN113550019B (en) * | 2021-08-09 | 2023-08-15 | 西安工程大学 | Preparation method of colored regenerated cellulose conductive filaments based on waste textiles |
| WO2023034885A1 (en) * | 2021-08-31 | 2023-03-09 | Apani Systems Inc. | Textile recycling |
| US11713528B2 (en) | 2021-08-31 | 2023-08-01 | Apani Systems Inc. | Textile recycling |
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| CN103388188B (en) | 2015-08-12 |
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