CN109505165B - Disperse dye terylene dyeing method using siloxane as medium - Google Patents
Disperse dye terylene dyeing method using siloxane as medium Download PDFInfo
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- CN109505165B CN109505165B CN201710830150.9A CN201710830150A CN109505165B CN 109505165 B CN109505165 B CN 109505165B CN 201710830150 A CN201710830150 A CN 201710830150A CN 109505165 B CN109505165 B CN 109505165B
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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
- D06P1/90—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 dyes dissolved in organic solvents or aqueous emulsions thereof
- D06P1/92—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 dyes dissolved in organic solvents or aqueous emulsions thereof in organic solvents
- D06P1/928—Solvents other than hydrocarbons
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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
- 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
- D06P3/34—Material containing ester groups
- D06P3/52—Polyesters
- D06P3/54—Polyesters using dispersed dyestuffs
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- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
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Abstract
The invention discloses a method for dyeing terylene by using a disperse dye with siloxane as a medium, belonging to the technical field of textile dyeing and finishing. The dyeing method comprises the following steps: (1) adding the substance to be dyed, the prepared dye solution and a dyeing promoter into a medium for dyeing; (2) and removing liquid after dyeing, washing by using a siloxane medium, and drying to obtain a dyed finished product. Compared with the patent CN103074781A, the method does not need to carry out pretreatment on the general objects to be dyed, only needs to add a small amount of non-toxic dyeing accelerant during dyeing, realizes the dyeing of the terylene textile under the condition of normal pressure or micro pressure, thereby reducing the dependence and the requirement (high temperature and high pressure) on equipment. The subsequent washing abandons a washing method and uses a siloxane medium, so that the zero discharge of sewage is achieved, and the dyeing uniformity and color fastness of the disperse dye can be effectively improved; and the siloxane medium obtained by dyeing, washing and drying can be recycled, so that the ecological dyeing of the disperse dye is really realized.
Description
Technical Field
The invention relates to a novel polyester dyeing method of disperse dyes, in particular to a polyester dyeing method which does not need any pretreatment, does not need to use a large amount of water, a dispersing agent and a carrier when dyeing and washing in a siloxane medium, reduces the pollution degree, realizes zero discharge of sewage, and belongs to the technical field of ecological dyeing and finishing of textiles.
Background
The disperse dye dyeing is mainly for synthetic fibers such as polyester, the conventional dyeing of polyester fibers by the disperse dye at home and abroad is still water bath dyeing under the action of an auxiliary agent, and the dye is uniformly dispersed in an aqueous solution by virtue of a dispersing agent. In the actual dyeing process, a large amount of dispersing agent or carrier is also required to be added, the carrier has toxicity and great harm to the environment and human bodies, and the dispersing agentSolubilization allows more dye to be stably retained in the dye bath, resulting in severe color contamination and greater COD, BOD loading. The conventional water bath dyeing and washing wastewater has low bath ratio, high water temperature and high pollutant concentration, contains more surfactants and toxic substances harmful to microorganisms, has uncoordinated COD and BOD and belongs to industrial wastewater with poor biodegradability, so the wastewater treatment has certain difficulty. Nowadays, with the increasing ecological consciousness, researchers in various countries take water conservation and few water discharge as the research focus. At present, the anhydrous dyeing technology with more applications has supercritical CO2Dyeing and solvent dyeing.
Supercritical CO2The dyeing does not use water and has no wastewater pollution, belongs to an environment-friendly dyeing process, and solves the problem of environmental pollution in the traditional dyeing process. But at present, the equipment is a high-pressure device, so that the cost is high and the investment is large; the applicable dyes are few in variety, and especially lack the dyes needed by natural fiber dyeing; the dyeing process needs further research and development, and cannot be applied on a large scale. The solvent dyeing is suitable for dyeing synthetic fibers by using disperse dyes, and the solvent can be recycled. However, the dyeing method has high requirements on dyes, and the toxicity of the solvent can generate new ecological problems, so that the method cannot be applied to actual production in a large scale at present.
The patent CN103074781A uses siloxane as a dyeing medium to dye the disperse dye, but the method needs pretreatment of the object to be dyed, and both pretreatment and reduction cleaning after dyeing need a large amount of water, and the purpose of saving water is not achieved.
In a word, the existing disperse dye dyeing method has the defects of large water consumption, difficulty in treating wastewater, high dependence on equipment, other ecological problems and the like, and the problems cannot be fundamentally solved through years of research, and the research on a dyeing method with less water/no water is an important breakthrough.
The invention relates to a disperse dye terylene dyeing method using siloxane as a medium, which not only improves the dyeing uniformity and color fastness of dye, but also greatly reduces the dependency of dyeing on equipment. In addition, the siloxane medium used for dyeing and washing is easy to recover and recycle, and zero discharge of sewage is achieved.
Disclosure of Invention
The invention provides a disperse dye terylene dyeing method using siloxane as a medium. The method has a series of advantages of safety, no toxicity, excellent dyeing effect, easy medium recovery, less additives, zero sewage discharge, small dependence on equipment and the like.
The purpose of the invention can be realized by the following technical scheme steps:
(1) adding the object to be dyed, prepared dye liquor and dyeing accelerant into a dyeing medium for dyeing;
(2) and removing liquid after dyeing, washing by using a siloxane medium, and drying to obtain a dyed finished product.
The process of claim 1, wherein the dyeing medium in the dyeing system is a siloxane of the formula (SiOR)2) n, wherein R is CH3N =3-9, preferably n = 4-6; the ratio of the dye to the siloxane is from 1:2 to 1:50, preferably from 1:4 to 1: 10.
According to the claim 1, in the step (1), the material to be dyed comprises terylene loose fiber, terylene yarn, terylene fabric and the like.
According to claim 1, the material to be dyed is not subjected to pretreatment in step (1).
According to claim 1, in step (1), the dye liquor is used in an amount of 0.1-20%, preferably 0.2-10% of the material to be dyed; the dosage of siloxane in the prepared dye liquor is 0-500%, preferably 0.1-200% of the material to be dyed.
According to claim 1, in the dyeing system of step (1), the dyeing promoter is ethanol, ethylene glycol, methanol, ethyl acetate, glycerol, formic acid, acetic acid, water, etc., and is used in an amount of 0.5-150%, preferably 1-30%, of the material to be dyed.
According to claim 1, step (1) said dyeing process is as follows: dyeing at room temperature, heating to 100-oC, preferably 130-oAnd C, keeping the temperature for 1-100min, preferably 30-70 min.
The method according to claim 1, wherein the post-dyeing deliquoring is selected from the group consisting of pressure pressing, centrifugal deliquoring, and vacuum deliquoring. The liquor carrying rate of the dye after liquor removal is 5-200%, preferably 10-100%.
According to claim 1, step (2), the washing process is as follows: adding siloxane medium, heating to 20-100 deg.C oC, preferably 60 to 90 oAnd C, preserving the heat for 1-60min, preferably for 10-15 min.
The invention has the beneficial effects that:
the invention develops a new method for dyeing disperse dye terylene by taking siloxane as a medium. Compared with the prior patents, the invention does not need pretreatment, only needs to add a small amount of non-toxic dyeing accelerant during dyeing, realizes the dyeing of the terylene textile under the condition of normal pressure or micro pressure, thereby reducing the dependence and the requirement (high temperature and high pressure) on equipment. The subsequent washing abandons a washing method and uses a siloxane medium, thereby achieving zero discharge of sewage.
Detailed Description
The invention provides a method for dyeing disperse dye terylene by taking siloxane as a medium, which comprises the following specific implementation case.
Example 1
30g of disperse red dye and 200g of siloxane medium are prepared into dye liquor for standby. 6kg of polyester fiber is put into a siloxane medium, the bath ratio is 1:4.5, dye liquor and 500g of ethyl acetate are added, and the mixture is kept at 7 oC/min heating to 80 oC, maintenance 2 oC/min heating to 140 oC, preserving the temperature for 60min, quickly cooling and removing the liquid, then adding a siloxane medium, and adding 7 parts of siloxane oC/min heating 80 oAnd C, keeping the temperature for 10min, washing twice, and finally removing liquid and drying to obtain a dyeing finished product.
Example 2
10g of disperse orange dye and 200g of siloxane medium are prepared into dye liquor for standby. Putting 1.5kg of polyester fiber into siloxane medium at a bath ratio of 1:5, adding dye liquor and 50% ethanol, and keeping 5% oC/min heating to 80 oC, holding 3 oC/min heating to 140 oC, preserving heat for 50min, quickly cooling to remove liquid, then adding siloxane medium, and adding 8 oC/min temperature rise 90 oAnd C, keeping the temperature for 10min, washing twice, and finally removing liquid and drying to obtain a dyeing finished product.
Example 3
0.1g of disperse blue dye and 1g of siloxane medium are taken to prepare a dye solution for standby. Putting 10g of polyester fiber into a siloxane medium at a bath ratio of 1:10, adding a dye liquor, and keeping the dye liquor at 7 DEG oC/min heating to 80 oC, preserving heat for 30min, dividing the heat preservation process into four parts, adding dye liquor into the first three parts for three times, adding acetic acid 1g into the last part, and keeping the temperature for 2 min oC/min heating to 140 oC, preserving the temperature for 60min, quickly cooling and removing the liquid, then adding a siloxane medium, and adding 7 parts of siloxane oC/min heating 80 oAnd C, keeping the temperature for 10min, washing twice, and finally removing liquid and drying to obtain a dyeing finished product.
Example 4
50g of disperse blue dye and 200g of siloxane medium are prepared into dye liquor for standby. Putting 6kg of polyester fiber into siloxane medium at a bath ratio of 1:4.5, adding dye liquor, and keeping the dye liquor at 8% oC/min heating to 90 oC, preserving heat for 30min, dividing the heat preservation process into four parts, adding dye liquor into the first three parts for three times, adding ethylene glycol 600g into the last part, and keeping the temperature for 2 min oC/min heating to 140 oC, preserving heat for 60min, quickly cooling and removing liquid, and then adding silicaAlkane medium, with 8 oC/min heating 80 oAnd C, keeping the temperature for 10min, washing twice, and finally removing liquid and drying to obtain a dyeing finished product.
Claims (3)
1. A disperse dye terylene dyeing method taking siloxane as a medium is characterized by comprising the following steps:
(1) putting the object to be dyed into dyeing medium siloxane, adding at least one of prepared dye liquor and dyeing accelerant ethanol, glycol, methanol, ethyl acetate, glycerol, formic acid, acetic acid and water for dyeing;
the dyeing medium siloxane has a structural general formula of (SiOR)2)nWherein R is-CH3，n=3-9；
The bath ratio of the object to be dyed to the dyeing medium siloxane is 1:2-1: 50;
the dosage ratio of the object to be dyed to the dyeing accelerant is 30:1-10: 1;
the temperature condition in the dyeing process is that dyeing is carried out at room temperature, the temperature is raised to 100-200 ℃, and the temperature is kept for 1-100 min;
(2) removing liquid after dyeing, washing by using a siloxane medium, and drying to obtain a dyed finished product, wherein the washing process of the siloxane medium comprises the following steps: adding siloxane medium, heating to 60-90 deg.C, and keeping the temperature for 10-15 min;
the liquid removal is at least one of pressure squeezing liquid, centrifugal liquid removal and vacuum liquid removal, and the liquid carrying rate of the dye after liquid removal is 10-100%.
2. The method according to claim 1, characterized in that the material to be dyed comprises polyester loose fibers, polyester yarns and polyester fabrics.
3. The method according to claim 1, characterized in that the substrate is not subjected to any pretreatment.
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| CN201710830150.9A CN109505165B (en) | 2017-09-15 | 2017-09-15 | Disperse dye terylene dyeing method using siloxane as medium |
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| CN201710830150.9A CN109505165B (en) | 2017-09-15 | 2017-09-15 | Disperse dye terylene dyeing method using siloxane as medium |
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| CN109505165A CN109505165A (en) | 2019-03-22 |
| CN109505165B true CN109505165B (en) | 2021-08-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111826972B (en) * | 2020-06-08 | 2022-06-03 | 武汉纺织大学 | Rapid dyeing method of polyester textiles |
| CN112746507A (en) * | 2021-01-08 | 2021-05-04 | 上海工程技术大学 | Dyeing function finishing one-bath one-step dyeing and finishing process |
Citations (4)
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| CN101922121A (en) * | 2010-08-11 | 2010-12-22 | 浙江理工大学 | New dyeing method of active dye taking methylsiloxane as medium |
| CN102767099A (en) * | 2012-07-11 | 2012-11-07 | 浙江理工大学 | Reactive dye ecological dyeing method of silk fabrics |
| CN103074781A (en) * | 2011-10-25 | 2013-05-01 | 浙江理工大学 | Dyeing method of disperse dyestuff with special methylsiloxane as medium |
| CN103485198A (en) * | 2013-09-11 | 2014-01-01 | 昆山市万丰制衣有限责任公司 | Active dye-decamethylcyclopentasiloxane suspension system dyeing process of cotton fabric |
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2017
- 2017-09-15 CN CN201710830150.9A patent/CN109505165B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922121A (en) * | 2010-08-11 | 2010-12-22 | 浙江理工大学 | New dyeing method of active dye taking methylsiloxane as medium |
| CN103074781A (en) * | 2011-10-25 | 2013-05-01 | 浙江理工大学 | Dyeing method of disperse dyestuff with special methylsiloxane as medium |
| CN102767099A (en) * | 2012-07-11 | 2012-11-07 | 浙江理工大学 | Reactive dye ecological dyeing method of silk fabrics |
| CN103485198A (en) * | 2013-09-11 | 2014-01-01 | 昆山市万丰制衣有限责任公司 | Active dye-decamethylcyclopentasiloxane suspension system dyeing process of cotton fabric |
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| Title |
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| "D5洗涤对织物性能的影响";高先云等;《浙江理工大学学报》;20070126;第24卷(第1期);第6-10页 * |
| "涤纶以D5为介质的分散染料常压高温无水染色工艺研究";吴浩等;《浙江理工大学学报》;20150525;第33卷(第5期);第584-590页 * |
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| 常压下涤纶以D5位介质的非水染色研究;吴浩;《中国优秀硕士学位论文全文数据库 工程科技I辑》;20151015;B024-62 * |
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