CN115536822A - Dacron reduction-free cleaning agent and preparation method thereof - Google Patents
Dacron reduction-free cleaning agent and preparation method thereof Download PDFInfo
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- CN115536822A CN115536822A CN202211381384.7A CN202211381384A CN115536822A CN 115536822 A CN115536822 A CN 115536822A CN 202211381384 A CN202211381384 A CN 202211381384A CN 115536822 A CN115536822 A CN 115536822A
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- Prior art keywords
- cleaning agent
- preparation
- reduction
- catalyst
- terylene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/68—Polyesters containing atoms other than carbon, hydrogen and oxygen
- C08G63/688—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur
- C08G63/6884—Polyesters containing atoms other than carbon, hydrogen and oxygen containing sulfur derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/6886—Dicarboxylic acids and dihydroxy 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
- D06P1/16—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 dispersed, e.g. acetate, dyestuffs
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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
-
- 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
- D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
- D06P5/02—After-treatment
- D06P5/04—After-treatment with organic compounds
- D06P5/08—After-treatment with organic compounds macromolecular
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
The invention discloses a terylene reduction-free cleaning agent and a preparation method thereof, aiming at providing a terylene reduction-free cleaning agent which does not contain toxic and harmful substances, meets the requirement of environmental protection and can meet the strict requirement of Bluesign, GOTS and OEKO-TEX in the textile field; it has the following structural formula:
Description
Technical Field
The invention relates to a cleaning agent, in particular to a terylene non-reduction cleaning agent, and also relates to a preparation method of the cleaning agent, belonging to the technical field of dyeing and finishing engineering.
Background
The terylene has wide application in the textile field due to the characteristics of excellent strength, elasticity, wear resistance and the like, but the terylene can only adopt nonpolar disperse dyes for dyeing because of compact structure and small hydrophilicity, and a reduction cleaning step is usually needed after the dyeing is finished, otherwise, the color fastness and the like of the fabric can hardly meet the requirements, in particular to the blended fabric of medium-dark color or terylene spandex. The traditional cleaning method needs to use caustic soda or the caustic soda and sodium hydrosulfite are mixed for use, but the sodium hydrosulfite has strong reducibility and is easy to decompose and even spontaneously combust after being wetted and heated, so that great inconvenience and potential safety hazard are brought to storage and transportation. Researchers have been actively seeking environmentally friendly substitutes for sodium hydrosulfite. At present, the following substitutes are mainly available on the market:
1. thiourea dioxide: according to the relevant literature data, the redox potential of thiourea dioxide is lower than that of sodium hydrosulfite, so that the thiourea dioxide can be used for replacing sodium hydrosulfite in certain application scenes, but the thiourea dioxide has the defects of easy over-reduction, great color change of the fabric after cleaning and higher stability than the sodium hydrosulfite, but the thiourea dioxide can be gradually decomposed into strong reducing sulfenic acid when meeting water, so that heat protection, moisture protection, direct sunlight prevention and the like are still needed during storage.
2. White carving powder: the cleaning agent is usually used under an acidic condition, but the cleaning effect on the oligomer of the terylene is not good under the acidic condition, and the cleaning effect on the floating color is not good in the traditional alkaline reduction cleaning effect; and the sodium hydrosulfite is oxidized and decomposed into toxic and harmful substances such as formaldehyde, hydrogen sulfide and the like when meeting moisture, and compared with the sodium hydrosulfite, the storage and transportation conditions of the sodium hydrosulfite are not improved.
3. Polysaccharides: in recent years, many auxiliary agent manufacturers have introduced more environmentally friendly cleaning agents based on polysaccharides, but the cleaning effect is far inferior to that of the conventional reduction cleaning process, and the price is usually high.
Of course, other substances such as sodium bisulfate, sodium borohydride and the like are reported in the literature as reducing cleaning agents, but the substances also have potential safety hazards in the process of storage and transportation.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the reduction-free terylene cleaning agent which does not contain toxic and harmful substances, meets the requirement of environmental protection and can meet the strict requirement of Bluesign, GOTS and OEKO-TEX in the field of textiles.
The second purpose of the invention is to provide a preparation method of the terylene cleaning agent.
The application provides a first technical scheme is that the terylene non-reduction cleaning agent has the following structural formula:
wherein n = an integer from 2 to 100.
The second technical scheme provided by the invention is a preparation method of the terylene non-reduction cleaning agent, which sequentially comprises the following steps:
1) Sequentially adding terephthalic acid, ethylene glycol and sodium dimethyl sulfoisophthalate into a four-neck flask, and then adding a catalyst;
2) Purging the interior of the flask by filling nitrogen, sealing the four-mouth flask, heating to 160-200 ℃, simultaneously starting a vacuum water pump for vacuumizing, dehydrating and removing methanol, and reacting for 2-4 hours;
3) Continuously heating to 160-240 ℃ and reacting for 1-2 hours;
4) Continuously heating to 200-300 ℃ to remove redundant glycol;
5) Cooling to 60-100 deg.C, adding emulsifier, and stirring for 0.5-1.5 hr;
6) Cooling to room temperature to obtain milky yellow viscous emulsion;
the mass ratio of the terephthalic acid, the ethylene glycol, the sodium dimethyl sulfoisophthalate and the catalyst is as follows: 120-160: 248: 29-120: 0.39-0.44.
Further, in the preparation method of the above non-reducing nylon cleaning agent, the catalyst is a zinc acetate catalyst.
Further, in the preparation method of the above nylon non-reducing cleaning agent, the emulsifier is MARLIPAL O1360.
Further, in the preparation method of the above-mentioned non-reducing detergent for nylon, the mass ratio of terephthalic acid to emulsifier is: 120-160: 3-56.
Compared with the prior art, the invention has the beneficial effects that:
1. the reduction-free cleaning agent provided by the invention does not contain toxic and harmful substances, meets the requirement of environmental protection, and can meet the strict requirements of Bluesign, GOTS and OEKO-TEX in the field of textiles.
2. The reduction-free cleaning agent provided by the invention is in a liquid form, has no dust, and greatly improves the operating environment of operators.
3. The non-reducing cleaning agent provided by the invention is designed by a special structure, and a part of the structure of a molecular chain is similar to that of terylene, so that disperse dye on the surface of the terylene can be well replaced/replaced; meanwhile, the molecular chain contains a hydrophilic part, so that the disperse dye displaced from the surface of the terylene is dispersed in water, and the disperse dye is prevented from being back stained on the terylene.
4. Compared with the traditional caustic soda powder, the non-reducing cleaning agent provided by the invention has the advantages that the cleaning effect on the polyester fabric is equivalent, and the cleaning effect is superior to that of other types of reducing cleaning agents on the market.
Detailed Description
The invention will now be further described with reference to the following examples, which are not to be construed as limiting the invention in any way, and any limited number of modifications which can be made within the scope of the claims of the invention are still within the scope of the claims of the invention.
Example 1
The invention provides a terylene non-reduction cleaning agent, which is prepared by the following steps in sequence,
1) 156.78g terephthalic acid, 248g ethylene glycol and 29.72g sodium dimethylsulfoisophthalate were added sequentially to a 1 liter four-neck flask (with nitrogen protection, thermometer and vacuum equipment), followed by 0.39g zinc acetate catalyst;
2) Purging the interior of the flask for 10 minutes by filling nitrogen, sealing the four-mouth flask, heating to 180 ℃, simultaneously starting a vacuum water pump to perform vacuum pumping at 0.08Mpa for dehydration and methanol removal, and reacting for 3 hours;
3) Continuously heating to 200 ℃ and reacting for 1.5 hours;
4) Continuously heating to 250 ℃ to remove redundant glycol;
5) The temperature was reduced to 80 ℃ and 53.3g MARLIPAL O1360 (CAS: 9043-30-5) emulsifier, stirring for 1 hour;
6) Cooling to room temperature to obtain milky yellow viscous emulsion.
The structural formula is as follows:
example 2
The invention provides a terylene non-reduction cleaning agent, which is prepared by the following steps in sequence,
1) 139.36g terephthalic acid, 248g ethylene glycol and 59.44g sodium dimethylsulfoisophthalate are sequentially added into a 1L four-neck flask (with nitrogen protection, a thermometer and vacuumizing equipment), and then 0.4g zinc acetate catalyst is added;
2) Purging the interior of the flask for 10 minutes by filling nitrogen, sealing the four-mouth flask, heating to 180 ℃, simultaneously starting a vacuum water pump to perform vacuum pumping at 0.1Mpa for dehydration and methanol removal, and reacting for 3 hours;
3) Continuously heating to 200 ℃ and reacting for 1.5 hours;
4) Continuously heating to 250 ℃ to remove redundant glycol;
5) Cooling to 80 deg.C, adding 35.7g MARLIPALL O1360 emulsifier, and stirring for 1 hr;
6) Cooling to room temperature to obtain milky yellow viscous emulsion.
The structural formula is as follows:
example 3
The invention provides a terylene non-reduction cleaning agent, which is prepared by the following steps in sequence,
1) 121.94g of terephthalic acid, 248g of ethylene glycol and 119.16g of sodium dimethylsulfoisophthalate are sequentially added into a 1 liter four-neck flask (with nitrogen protection, a thermometer and vacuumizing equipment), and then 0.44g of zinc acetate catalyst is added;
2) Purging the interior of the flask for 10 minutes by filling nitrogen, sealing the four-mouth flask, heating to 180 ℃, simultaneously starting a vacuum water pump to perform vacuum pumping at 0.09Mpa for dehydration and methanol removal, and reacting for 3 hours;
3) Continuously heating to 200 ℃ and reacting for 1.5 hours;
4) Continuously heating to 250 ℃ to remove redundant glycol;
5) Cooling to 80 deg.C, adding 29.3g MARLIPALL O1360 emulsifier, and stirring for 1 hr;
6) Cooling to room temperature to obtain milky yellow viscous emulsion.
The structural formula is as follows:
competition 1
The invention provides a terylene non-reduction cleaning agent, which is prepared by the following steps in sequence,
1) 248g of ethylene glycol, 119.16g of sodium dimethylsulfoisophthalate are sequentially added into a 1L four-neck flask (with nitrogen protection, a thermometer and vacuumizing equipment), and then 0.44g of zinc acetate catalyst is added;
2) Purging the interior of the flask for 10 minutes by filling nitrogen, sealing the four-mouth flask, heating to 180 ℃, simultaneously starting a vacuum water pump for vacuumizing, dehydrating and removing methanol, and reacting for 3 hours;
3) Continuously heating to 200 ℃ and reacting for 1.5 hours;
4) Continuously heating to 250 ℃ to remove redundant glycol;
5) Cooling to 80 deg.C, adding 10g MARLIPALL O1360 emulsifier, and stirring for 1 hr;
6) Cooling to room temperature to obtain the competitive product 1.
Competition 2
The invention provides a terylene non-reduction cleaning agent, which is prepared by the following steps in sequence,
1) 121.94g of terephthalic acid and 248g of ethylene glycol are sequentially added into a 1 liter four-neck flask (with nitrogen protection, a thermometer and vacuumizing equipment), and then 0.44g of zinc acetate catalyst is added;
2) Purging the interior of the flask for 10 minutes by filling nitrogen, sealing the four-mouth flask, heating to 180 ℃, simultaneously starting a vacuum water pump for vacuumizing, dehydrating and removing methanol, and reacting for 3 hours;
3) Continuously heating to 200 ℃ and reacting for 1.5 hours;
4) Continuously heating to 250 ℃ to remove redundant glycol;
5) Cooling to 80 deg.C, adding 66g MARLIPALL O1360 emulsifier, and stirring for 1 hr;
6) Cooling to room temperature to obtain the competitive product 2.
In order to prove the effect of the technical scheme provided by the application, the performance test data of the reduction-free cleaning agent provided in the embodiments 1 to 3 are given as follows:
the washing fastness is carried out according to the method of ISO 105-C06C 2S 60 ℃; see tables 1-3 for results:
TABLE 1
TABLE 2
TABLE 3
From the test results, the color fastness of the six fibers of the examples 1 to 3 after cleaning can be equivalent to that of sodium hydroxide sodium hydrosulfite and the color becomes small on the basis of DISPERSE C-2R 150 percent of the dye; when the dye is darker in color and larger in dosage or is matched, the six-fiber staining fastness of the embodiment 1-3 is slightly inferior to that of caustic soda sodium hydrosulfite, but is far better than that of similar competitive products in the market, and the embodiment does not contain toxic and harmful substances, is convenient to store and transport, does not have dust and other hazards, and meets the requirements of regulations in the textile field such as Bluesign, GOTS, OEKO-TEX and the like.
Claims (5)
1. The terylene non-reduction cleaning agent is characterized by having the following structural formula:
wherein n = an integer from 2 to 100.
2. The preparation method of the non-reducing cleaning agent for nylon as defined in claim 1, which is characterized by comprising the following steps in sequence:
1) Sequentially adding terephthalic acid, ethylene glycol and sodium dimethyl sulfoisophthalate into a four-neck flask, and then adding a catalyst;
2) Purging the interior of the flask by filling nitrogen, sealing the four-mouth flask, heating to 160-200 ℃, simultaneously starting a vacuum water pump for vacuumizing, dehydrating and removing methanol, and reacting for 2-4 hours;
3) Continuously heating to 160-240 ℃ and reacting for 1-2 hours;
4) Continuously heating to 200-300 ℃ to remove redundant glycol;
5) Cooling to 60-100 deg.C, adding emulsifier, and stirring for 0.5-1.5 hr;
6) Cooling to room temperature to obtain milky yellow viscous emulsion;
the mass ratio of the terephthalic acid, the ethylene glycol, the sodium dimethyl sulfoisophthalate and the catalyst is as follows: 120-160: 248: 29-120: 0.39-0.44.
3. The preparation method of the nylon non-reducing cleaning agent as claimed in claim 2, wherein the catalyst is a zinc acetate catalyst.
4. The preparation method of the non-reducing detergent for nylon according to claim 2, wherein the emulsifier is MARLIPAL O1360.
5. The preparation method of the non-reducing detergent for nylon according to claim 2, wherein the mass ratio of the terephthalic acid to the emulsifier is as follows: 120-160: 3-56.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211381384.7A CN115536822A (en) | 2022-11-04 | 2022-11-04 | Dacron reduction-free cleaning agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211381384.7A CN115536822A (en) | 2022-11-04 | 2022-11-04 | Dacron reduction-free cleaning agent and preparation method thereof |
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| CN115536822A true CN115536822A (en) | 2022-12-30 |
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| CN202211381384.7A Pending CN115536822A (en) | 2022-11-04 | 2022-11-04 | Dacron reduction-free cleaning agent and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN159331B (en) * | 1983-01-17 | 1987-05-02 | Director Sir Padampat Research | |
| CN114134734A (en) * | 2021-12-10 | 2022-03-04 | 张家港市德宝化工有限公司 | Preparation method of soaping agent for one-step pad dyeing of polyester-cotton blended woven fabric |
-
2022
- 2022-11-04 CN CN202211381384.7A patent/CN115536822A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IN159331B (en) * | 1983-01-17 | 1987-05-02 | Director Sir Padampat Research | |
| CN114134734A (en) * | 2021-12-10 | 2022-03-04 | 张家港市德宝化工有限公司 | Preparation method of soaping agent for one-step pad dyeing of polyester-cotton blended woven fabric |
Non-Patent Citations (1)
| Title |
|---|
| 王康康: "涤/棉针织物一浴免还原皂洗剂的设计、合成及应用", 中国优秀硕士学位论文全文数据库, pages 024 - 62 * |
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