CN107446725A - A kind of oil-in-water microemulsion degreaser and its preparation method and application - Google Patents
A kind of oil-in-water microemulsion degreaser and its preparation method and application Download PDFInfo
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- CN107446725A CN107446725A CN201710538983.8A CN201710538983A CN107446725A CN 107446725 A CN107446725 A CN 107446725A CN 201710538983 A CN201710538983 A CN 201710538983A CN 107446725 A CN107446725 A CN 107446725A
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/86—Mixtures of anionic, cationic, and non-ionic compounds
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/0005—Other compounding ingredients characterised by their effect
- C11D3/0021—Dye-stain or dye-transfer inhibiting compositions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2003—Alcohols; Phenols
- C11D3/2006—Monohydric alcohols
- C11D3/2017—Monohydric alcohols branched
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/20—Organic compounds containing oxygen
- C11D3/2068—Ethers
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/008—Polymeric surface-active agents
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/04—Carboxylic acids or salts thereof
- C11D1/06—Ether- or thioether carboxylic acids
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- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
- C11D1/29—Sulfates of polyoxyalkylene ethers
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/02—Anionic compounds
- C11D1/34—Derivatives of acids of phosphorus
- C11D1/345—Phosphates or phosphites
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/62—Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
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- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
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Abstract
The invention discloses a kind of oil-in-water microemulsion degreaser and its preparation method and application.The oil-in-water microemulsion degreaser of the present invention, it is as follows that it forms mass parts：First Fatty alcohol polyoxyethylene polyoxypropylene ether 30 70, the second Fatty alcohol polyoxyethylene polyoxypropylene ether salt 2 30, polyoxyethylene groups fat based quaternary ammonium salt 1 30, cosurfactant 1 10, solvent 10 30, water 10 60.The degreaser of the present invention can quick deoiling and grease proofing return be stained with, solve microemulsion intolerant to water-reducible shortcoming, it is played the advantages of quickly deoiling under very low concentrations.
Description
Technical field
The present invention relates to a kind of oil-in-water microemulsion degreaser, the degreaser preparation method and its in pretreatment of spinning
Application in technique of deoiling, is particularly suitable for use in and is quickly deoiled technique with fabric pretreatment, and grease proofing return is stained with.
Background technology
During spinning, weaving cotton cloth, cloth cover or textile fabric are always stained with some greasy dirts (machine oil etc.)；In addition, textile fabric
Greasy dirt is also easily stained with storage and transport process.In order to ensure follow-up dyeability, going out for dyeing defect, color lake and silicone oil spot etc. is prevented
It is existing, finish and greasy dirt on processing removing cloth cover before being carried out to fabric are needed before dyeing.
The method of degreaser and greasy dirt is gone mainly there are two kinds：(1) dissolution method.Fabric is soaked using some organic solvents
Bubble.Past, some dye-works were often made clearly with some volatile solvents (such as oil of bananas, benzene and derivative, trichloro ethylene) and soap
Lotion, it is stained with small brushes and washes fabric face；(2) washing method.This method can effectively remove large area spinning oil, and industrialization can be achieved
Using, but need to use high-efficient washing auxiliary agent.According to washing principle, in washing process, detergent and dirt, dirt and solid
Between physical action (effect such as wetting, infiltration, emulsification) occurs, and dirt is split away off from the surface of solids by mechanical force, point
Dirt from after and surfactant form stable emulsion oil-in-water and are uniformly scattered in medium and are removed.
During fabric pretreatment, chemical solvent oil removing is maximally effective oil removing mode, and greasy dirt dissolution velocity is fast, but molten
Agent usage amount is bigger, and solvent toxicity is big, inflammable, explosive, using being restricted.
At present, aqua type degreaser is turning into the main flow in market, and this degreaser is mainly by surfactant and various
Additive compound forms, and is degreased using the cleaning action of surfactant, it is necessary to which stronger mechanical agitation reaches
The purpose of oil, deoils relatively inefficient.
Microemulsion is that the thermodynamics spontaneously formed under certain condition by oil, water, surfactant, cosurfactant is steady
Fixed, the transparent or semitransparent dispersion of isotropism, low viscosity, particle diameter is between 1-100nm.Micro emulsion liquid energy and oil, water
It is miscible, oil water interfacial tension, especially middle microemulsion phase are substantially reduced, oil, water interfacial tension are up to 10-3MN/m, sometimes even
For negative value.Therefore microemulsion degreaser has autoemulsification, i.e., during cleaning, in a small amount of mechanical energy (as slightly stirred
Mix or shake) outside energy input condition under rely only on the emulsifying capacity of emulsifying agent in itself and water-oil phase can be blended together automatically
Emulsion, the advantage of greasy dirt is quickly desorbed in combination with a small amount of solvent, reaches the purpose quickly deoiled.Compared to deoiling for routine
Agent, the advantages of microemulsion degreaser has solvent and surfactant concurrently, and effectively reduce the dosage of solvent so that solvent can be steady
Surely it is present in formula, efficiently plays its molten oil effect, it is in sum, more efficient more energy efficient.
The disadvantage that microemulsion uses at present be not dilution-resistant, it is necessary to which very high surfactant concentration could be formed surely
Fixed microemulsion, this provides for improved the cost of its application.Therefore, solve microemulsion intolerant to water-reducible shortcoming, allow its
It is the task of top priority that quick the advantages of deoiling is played under very low concentrations.
The content of the invention
One of technical problems to be solved by the invention are to overcome existing microemulsion intolerant to water-reducible shortcoming, there is provided a kind of
Oil-in-water microemulsion degreaser for fabric pretreatment.
Therefore, the technical solution adopted by the present invention is：One kind is used for fabric pretreatment oil-in-water microemulsion degreaser, its group
Into mass parts it is as follows：
The general structure of first Fatty alcohol polyoxyethylene polyoxypropylene ether is：
In formula, R1It is saturation or unsaturated aliphatic base containing 8-16 carbon atom, a 5-8, b 1-4, and a+b≤
10；
The general structure of the second Fatty alcohol polyoxyethylene polyoxypropylene ether salt is：
In formula, R2It is saturation or unsaturated aliphatic base containing 8-16 carbon atom, c 5-8, d 1-3, and c+d≤
10；X is ionic group, is-SO3Na、-CH2COONa or-PO3Na；
The general structure of the polyoxyethylene groups fat based quaternary ammonium salt is：
In formula, R3It is saturation or unsaturated aliphatic base containing 8-16 carbon atom, e 1-8.
Preferably, R1For the radical of saturated aliphatic base containing 8 or 13 carbon atoms, a 6, b are 1 or 2.
Preferably, R2For the radical of saturated aliphatic base containing 8 or 12-14 carbon atom, c 6, d 1.
Preferably, R3For the radical of saturated aliphatic base containing 12-14 carbon atom, e is 3 or 5.
Preferably, oil phase of the described solvent as oil-in-water microemulsion degreaser, selected from ethylene glycol monomethyl ether, ethylene glycol
Ether, butyl glycol ether, diethylene glycol dimethyl ether, triethylene glycol butyl ether, propandiol butyl ether, propylene glycol monomethyl ether, dipropylene glycol methyl ether,
Normal butane, chloroform, dichloromethane, petroleum ether, carbon tetrachloride, 1- methyl -4- cyclohexene, one kind in kerosene.
Preferably, the one kind of described cosurfactant in n-butanol, isobutanol, n-amyl alcohol.
As most preferably, described solvent is butyl glycol ether, and cosurfactant is isobutanol.
Another technical problem to be solved by this invention is to provide the preparation method of above-mentioned oil-in-water microemulsion degreaser,
By the first selected Fatty alcohol polyoxyethylene polyoxypropylene ether, the second Fatty alcohol polyoxyethylene polyoxypropylene ether salt, polyoxyethylene
Base fat based quaternary ammonium salt, solvent and cosurfactant are well mixed, and progressively water dilutes, that is, obtains oil-in-water microemulsion and go
Finish.
Another technical problem to be solved by this invention be to provide above-mentioned oil-in-water microemulsion degreaser be used for weave before
The application in technique of deoiling is handled, specific processing technology is as follows：Add foregoing oil-in-water microemulsion degreaser 0.25-10g/
L, soda ash 0-20g/L, working solution are warming up to 80-100 DEG C, weave cotton cloth with 25-40m/min speed by work tank, then wash.
The addition of Fatty alcohol polyoxyethylene polyoxypropylene ether salt improves microemulsion degreaser high temperature resistant Salt And Alkali Tolerance in the present invention,
A small amount of anion surfactant is added, via the stability of electrostatic repulsion, further lifting microemulsion；With with ethoxy
The polyoxyethylene groups fat based quaternary ammonium salt of base group is cationic surfactant, and anion surfactant can be stablized and coexist
In the aqueous solution, the addition of a small amount of cationic surfactant, electrostatic neutralizes, and is capable of the interfacial tension of the Effective Regulation aqueous solution,
Reach ultralow interfacial tension, the mixed interface molecular film of formation can effectively stablize oil-dissolving solvent at low concentrations, make microemulsion
Water-fast dilution.
The present invention is deoiled application of the agent prescription in fabric deoils technique by being introduced into microemulsion, can be realized simultaneously water-soluble
Property spot and oil-soluble greasy dirt quick removal, deoil time and the required mechanical agitation intensity that deoils can be saved, and prevent
Oil, which returns, to be stained with, and is adapted to the new situations of energy-saving and emission-reduction, is with a wide range of applications in textile printing and dyeing industry.
Brief description of the drawings
The oil-in-water microemulsion degreaser that Fig. 1 obtains for the embodiment of the present invention removes oil cut rate datagram.
Embodiment
Embodiment 1-7
The degreaser composition of raw materials of the present invention carries out dispensing according to table one, and unit is mass percent.
The preparation process of embodiment is：By the first selected Fatty alcohol polyoxyethylene polyoxypropylene ether, the second poly alkyl alcohol
Oxygen ethene polyethenoxy ether salt, polyoxyethylene groups fat based quaternary ammonium salt, isobutanol and butyl glycol ether are well mixed, by
Step water dilution can obtain oil-in-water microemulsion degreaser, be finally progressively diluted to 0.25-10g/L working solutions and apply and gone quickly
In oily technique.
Table one：Composition of raw materials
Embodiment 1 is formulated obtained degreaser and goes oil cut rate data to see Fig. 1.Go oil cut rate test evaluation method as follows：
(1) prepared by oilcloth
First by finish and dichloromethane according to mass ratio 1:9 mixing, test weave cotton cloth be cut into length for 15 centimetres just
Square sample, then test is weaved cotton cloth to be put into finish mixed solution and soaked 1 hour, taken out and dry 48 hours in 70 DEG C of baking oven, most
The high-temperature shaping on forming machine afterwards, 170 DEG C of setting temperature.The effect of high-temperature shaping is to simulate finish on fabric through pre-setting mistake
The heat treatment that journey is subjected to.
(2) oil removing process
Oil removing working solution includes：Degreaser 2g/L made from raw material described in table one.Deoiling step includes：At room temperature will be upper
The oilcloth for stating step (1) acquisition is put into oil removing working solution, is then warming up to 90-95 DEG C simultaneously with 4-5 DEG C/min of heating rate
Insulation 10 minutes, then cold water is washed, and is dehydrated and is dried.
According to above-mentioned steps condition, change working solution concentration, dilution degreaser is：0.25g/L、0.5g/L、1.0g/L、
0g/L in 1.5g/L, Fig. 1 is blank sample.
(3) oil removing evaluation of result
Oil cut rate is calculated by the weight loss of foregoing (2) oil removing process oil.Square weave cotton cloth is weighed, record data
W1, oil, weigh W after drying and high-temperature shaping2, wash after oil removing process and dry, weigh W3.Go oil cut rate formula as follows：
Oil-in-water microemulsion degreaser of the present invention has the advantage that：
1st, there is the ability for preferably removing water-soluble stain and oil-soluble greasy dirt, in the ability of deoiling, as shown in figure 1,
In more than 1.5g/L with very strong ability of deoiling, oil cut rate is gone to reach more than 80%；
2nd, technique of quickly deoiling is can adapt to, grease proofing return is stained with.
Described above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member, without departing from the inventive concept of the premise, can also make some changes, improvements and modifications, and these change, improve and moistened
Decorations also should be regarded as protection scope of the present invention.
Claims (9)
1. a kind of oil-in-water microemulsion degreaser, its spy are, it is as follows that it forms mass parts：
The general structure of first Fatty alcohol polyoxyethylene polyoxypropylene ether is：
In formula, R1It is saturation or unsaturated aliphatic base containing 8-16 carbon atom, a 5-8, b 1-4, and a+b≤10；
The general structure of the second Fatty alcohol polyoxyethylene polyoxypropylene ether salt is：
In formula, R2It is saturation or unsaturated aliphatic base containing 8-16 carbon atom, c 5-8, d 1-3, and c+d≤10；X is
Ionic group, it is-SO3Na、-CH2COONa or-PO3Na；
The general structure of the polyoxyethylene groups fat based quaternary ammonium salt is：
In formula, R3It is saturation or unsaturated aliphatic base containing 8-16 carbon atom, e 1-8.
2. oil-in-water microemulsion degreaser according to claim 1, it is characterised in that described R1To contain 8 or 13 carbon
The radical of saturated aliphatic base of atom, a 6, b are 1 or 2.
3. oil-in-water microemulsion degreaser according to claim 1, it is characterised in that described R2To contain 8 or 12-14
The radical of saturated aliphatic base of individual carbon atom, c 6, d 1.
4. oil-in-water microemulsion degreaser according to claim 1, it is characterised in that R3For containing 12-14 carbon atom
Radical of saturated aliphatic base, e are 3 or 5.
5. oil-in-water microemulsion degreaser according to claim 1, it is characterised in that described solvent is micro- as oil-in-water
The oil phase of emulsion degreaser, selected from ethylene glycol monomethyl ether, ethylene glycol ethyl ether, butyl glycol ether, diethylene glycol dimethyl ether, triethylene glycol fourth
Ether, propandiol butyl ether, propylene glycol monomethyl ether, dipropylene glycol methyl ether, normal butane, chloroform, dichloromethane, petroleum ether, four chlorinations
Carbon, 1- methyl -4- cyclohexene, one kind in kerosene.
6. oil-in-water microemulsion degreaser according to claim 5, it is characterised in that described cosurfactant is selected from
One kind in n-butanol, isobutanol, n-amyl alcohol.
7. oil-in-water microemulsion degreaser according to claim 6, it is characterised in that described solvent is ethylene glycol fourth
Ether, cosurfactant are isobutanol.
8. the preparation method of the oil-in-water microemulsion degreaser any one of claim 1 to 7, it is characterised in that by institute
First Fatty alcohol polyoxyethylene polyoxypropylene ether of choosing, the second Fatty alcohol polyoxyethylene polyoxypropylene ether salt, polyoxyethylene groups fat
Fat based quaternary ammonium salt, solvent and cosurfactant are well mixed, and progressively water dilutes, that is, obtains oil-in-water microemulsion and deoil
Agent.
9. application of the degreaser made from preparation method described in claim 8 in pretreatment of spinning deoils technique, its feature exist
In, add oil-in-water microemulsion degreaser 0.25-10g/L, soda ash 0-20g/L, working solution is warming up to 80-100 DEG C, weave cotton cloth with
Then 25-40m/min speed is washed by work tank.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370795A (en) * | 2018-12-12 | 2019-02-22 | 上海雅运新材料有限公司 | Wash/ammonia and brocade/ammonia blended knitted fabric Continuous maching degreaser and preparation method thereof |
| CN111484061A (en) * | 2020-05-21 | 2020-08-04 | 贺州学院 | Preparation method of cubic ultrafine calcium carbonate |
| CN112795439A (en) * | 2020-12-15 | 2021-05-14 | 黑龙江边外香农业有限责任公司 | Efficient deoiling agent and preparation method thereof |
| CN113122401A (en) * | 2021-04-22 | 2021-07-16 | 江苏雪豹日化有限公司 | Oil-in-water microemulsion cleaning agent capable of being infinitely diluted by water and preparation method thereof |
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| CN102191144A (en) * | 2010-03-19 | 2011-09-21 | 上海和黄白猫有限公司 | Microemulsion spraying agent |
| CN104194971A (en) * | 2014-08-25 | 2014-12-10 | 深圳市唯特偶新材料股份有限公司 | Micro-emulsion cleaning agent for welding jigs |
| CN105238578A (en) * | 2015-10-30 | 2016-01-13 | 深圳市新纶科技股份有限公司 | Microemulsion type cleaning agent and preparation method thereof |
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| CN102191144A (en) * | 2010-03-19 | 2011-09-21 | 上海和黄白猫有限公司 | Microemulsion spraying agent |
| CN104194971A (en) * | 2014-08-25 | 2014-12-10 | 深圳市唯特偶新材料股份有限公司 | Micro-emulsion cleaning agent for welding jigs |
| CN105238578A (en) * | 2015-10-30 | 2016-01-13 | 深圳市新纶科技股份有限公司 | Microemulsion type cleaning agent and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370795A (en) * | 2018-12-12 | 2019-02-22 | 上海雅运新材料有限公司 | Wash/ammonia and brocade/ammonia blended knitted fabric Continuous maching degreaser and preparation method thereof |
| CN109370795B (en) * | 2018-12-12 | 2020-10-02 | 太仓宝霓实业有限公司 | Oil removing agent for continuously processing polyester/ammonia and nylon/ammonia blended knitted fabric and preparation method thereof |
| CN111484061A (en) * | 2020-05-21 | 2020-08-04 | 贺州学院 | Preparation method of cubic ultrafine calcium carbonate |
| CN111484061B (en) * | 2020-05-21 | 2022-11-15 | 贺州学院 | Preparation method of cubic ultrafine calcium carbonate |
| CN112795439A (en) * | 2020-12-15 | 2021-05-14 | 黑龙江边外香农业有限责任公司 | Efficient deoiling agent and preparation method thereof |
| CN113122401A (en) * | 2021-04-22 | 2021-07-16 | 江苏雪豹日化有限公司 | Oil-in-water microemulsion cleaning agent capable of being infinitely diluted by water and preparation method thereof |
| CN113122401B (en) * | 2021-04-22 | 2022-02-11 | 江苏雪豹日化有限公司 | Oil-in-water microemulsion cleaning agent capable of being infinitely diluted by water and preparation method thereof |
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| CN107446725B (en) | 2020-04-28 |
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