CN102517175B - Neutral liquid cleaning agent for outside surface of bullet train and preparation method and applications thereof - Google Patents
Neutral liquid cleaning agent for outside surface of bullet train and preparation method and applications thereof Download PDFInfo
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- CN102517175B CN102517175B CN 201110375236 CN201110375236A CN102517175B CN 102517175 B CN102517175 B CN 102517175B CN 201110375236 CN201110375236 CN 201110375236 CN 201110375236 A CN201110375236 A CN 201110375236A CN 102517175 B CN102517175 B CN 102517175B
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Abstract
The invention discloses a neutral liquid cleaning agent for an outside surface of a bullet train, which comprises organic base, organic acid, inorganic salt, an organic solvent, a corrosion inhibitor, a non-ionic surface active agent, an anion surface active agent and water. A preparation method for the neutral liquid cleaning agent for the outside surface of the bullet train comprises the following steps: heating the water in an agitating pan to 40-60 DEG C; adding the organic base, the organic acid, the inorganic salt, the corrosion inhibitor, the non-ionic surface active agent and the anion surface active agent to the water in the agitating pan in sequence while stirring is performed; evenly stirring and mixing; stopping heating after all raw material components are melted; cooling to about 45 DEG C; adding the organic solvent; stirring for 20-100min to obtain the neutral liquid cleaning agent for the outside surface of the bullet train after a system is even. When the neutral liquid cleaning agent for the outside surface of the bullet train is applied, firstly, the neutral liquid cleaning agent for the outside surface of the bullet train is diluted by water in the volume ratioof the neutral liquid cleaning agent for the outside surface of the bullet train to the water is 1:(5-20), and then, the neutral liquid cleaning agent for the outside surface of the bullet train can be used.
Description
Technical field
The present invention relates to a kind ofly for the outer railway carriage sanitising agent of Railway System locomotive, more particularly relate to outer railway carriage neutral liquid sanitising agent of a kind of motor-car and its preparation method and application.
Background technology
Motor-car in the fast running process, outer railway carriage dirt main composition: 1) the animal subacidity organisms such as birds movement and insect; 2) sand and dust, the clay kicked up of train high-speed cruising also has fine powdered carbon, iron powder, metal ion or metal oxide solid, 3) the oiliness greasy dirt, 4) rust staining of other various mixed dirts and formation thereof.And these dirts are trapped in lily EMUs outside surface, seem painted responsive especially to polluting, if in time do not wash removing, can accelerate its yellowing and lose gloss of film.If but arbitrarily use washing composition, although the multiple unit train body spraying is to protect preferably polyurethane finish of light tint retention, accelerated deterioration even the yellowing that also may bring the pure white coating surface.More long-range consideration be, be mainly aluminium alloy and stainless EMUs for the body construction material, in case the protectiveness paint film on it damages to some extent, then just be easy to produce corrosion.For motor-car surface different sites, the different characteristics of dirt need to have suitable sanitising agent to clean.
For the large-area cleaning of locomotive car body, multiplex neutral liquid sanitising agent mainly utilizes the mechanism such as SURFACTANT ADSORPTION, emulsification, dispersion, reaches good clean effect.This decontamination mode performance is gentle, does not contain the acid-basicity compound, to locomotive surface non-corrosiveness.The preferred good tensio-active agent of biodegradability, environmentally friendly.The mild detergent detergency ability that is used at present locomotive surface big area cleaning is good, but because the tensio-active agent selection is reasonable not, corrodibility to aluminium alloy is more serious, and motor-car locomotive aluminium alloy component are had stronger corrosive nature, has reduced the work-ing life of this part parts of motor-car.
Clean the dirt characteristics that motor-car should produce according to motor-car in quick operational process, will consider that also cleaning product does not produce corrosive nature to motor-car surface paint, parts, the motor-car paint after the cleaning is wanted light as new; Detergent for washing car can not cause any corrosion to other parts of motor-car; Simultaneously, the chemical ingredients of cleaning product and easy washability all should meet the requirement of direct minimizing water usage quantity and environmental protection.The outer railway carriage neutral liquid sanitising agent of a kind of motor-car of the present invention is according to the corrodibility evaluation, and its outward appearance corrodibility is 1 grade, and etching extent is 1～2mg; And present commercially available sample outward appearance corrodibility under similarity condition is 3 grades, and etching extent is 7mg.
Summary of the invention
One of purpose of the present invention is to provide railway carriage neutral liquid sanitising agent outside a kind of motor-car in order to solve above-mentioned technical problem.
Two of purpose of the present invention provides the preparation method of the outer railway carriage neutral liquid sanitising agent of above-mentioned a kind of motor-car.
Three of purpose of the present invention provides the outer railway carriage neutral liquid sanitising agent of a kind of above-mentioned a kind of motor-car application method during the railway carriage cleaning motor-car outside.
Technical scheme of the present invention
The outer railway carriage neutral liquid sanitising agent of a kind of motor-car, count by weight percentage that its raw material forms and content is as follows:
Organic bases 1～30%
Organic acid 1～30%
Inorganic salt 1～10%
Organic solvent 0.01～10%
Erosion resistant agent 0.01～10%
Nonionogenic tenside 1～20%
Anion surfactant 1～20%
Surplus is water;
Described organic bases is one or more the compound in trolamine, diethanolamine, monoethanolamine and the quadrol;
Described organic acid is one or more the compound in citric acid, acetic acid, oxalic acid and the tartrate; For guarantee system is neutral, organic acid add-on equivalent is in organic bases;
Described inorganic salt are strong base-weak acid salt, yellow soda ash, citric acid receive and sodium-acetate in one or more compound;
Described organic solvent is one or more one or more composite of compound in propylene glycol, ethylene glycol, butanols and the amylalcohol;
Described erosion resistant agent is one or more the compound in molybdate, tungstate, silicate, poly-phosphate, phosphonic acids (salt), phosphine carboxylic acid, coloured glaze base benzothiazole, benzotriazole and the sulfonated lignin;
Described nonionogenic tenside is one or more the compound in fatty alcohol-polyoxyethylene ether, Fatty Alcohol(C12-C14 and C12-C18) diglycollic amide, polyoxyethylene poly-oxygen propylene aether and the alkyl glycoside;
Described fatty alcohol-polyoxyethylene ether, structural formula is:
, wherein Fatty Alcohol(C12-C14 and C12-C18) carbonatoms n is between 8～20, and oxygen ethene (EO) number m is between 3～20 in the polyoxyethylene;
Described Fatty Alcohol(C12-C14 and C12-C18) diglycollic amide, structural formula is:
Wherein the carbonatoms of Fatty Alcohol(C12-C14 and C12-C18) is between 8～20;
Described polyoxyethylene poly-oxygen propylene aether, structural formula is:
Wherein m, n are between 3～20;
Described alkyl glycoside, structural formula is:
The carbonatoms of the hydrocarbon chain in the alkyl wherein is between 8～20, and n is between 3～20;
Described anion surfactant is one or more the compound in Fatty Alcohol(C12-C14 and C12-C18) carboxylate salt, sodium alkyl benzene sulfonate, fatty alcohol polyoxyethylene ether sulfate, aliphatic alcohol sulfate, alkylsulfonate and the alkyl phosphate salt
Described Fatty Alcohol(C12-C14 and C12-C18) carboxylate salt, wherein the Fatty Alcohol(C12-C14 and C12-C18) carbonatoms is between 8～20;
Described sodium alkyl benzene sulfonate, wherein the alkyl carbon atoms number is between 8～20;
Described fatty alcohol polyoxyethylene ether sulfate, wherein the Fatty Alcohol(C12-C14 and C12-C18) carbonatoms is between 8～20, and oxygen ethene (EO) number is between 3～20 in the polyoxyethylene;
Described aliphatic alcohol sulfate, wherein the Fatty Alcohol(C12-C14 and C12-C18) carbonatoms is between 8～20;
Described alkylsulfonate, wherein the alkyl carbon atoms number is between 8～20;
Described alkyl phosphate salt, wherein the alkyl carbon atoms number is between 8～20.
The preparation method of the outer railway carriage neutral liquid sanitising agent of above-mentioned a kind of motor-car comprises the steps:
(1), water is heated to 40～60 ℃ in agitator kettle;
(2), when stirring, successively organic bases, organic acid, inorganic salt, erosion resistant agent, nonionogenic tenside, anion surfactant are joined in the water of agitator kettle, mix;
(3), stopped heating after all feed composition meltings;
(4), be cooled to about 45 ℃, add organic solvent, stir 20～100min, the system for the treatment of evenly namely gets the outer railway carriage neutral liquid sanitising agent of a kind of motor-car.
The outer railway carriage neutral liquid sanitising agent of above-mentioned a kind of motor-car is the application method during the railway carriage cleaning motor-car outside
Be the ratio of 1 ︰ 5～20 according to the volume ratio of the outer railway carriage neutral liquid Qing Jie Ji ︰ water of motor-car at first namely, water can use the outer railway carriage neutral liquid sanitising agent dilution of motor-car.
Beneficial effect of the present invention
A kind of motor-car of the present invention is railway carriage neutral liquid sanitising agent outward, is suitable for the cleaning in the outer dirtier zone of railway carriage of motor-car.In process for preparation, combine acid-basicity cleaning mechanism and tensio-active agent cleaning mechanism, have good cleaning action.
In addition, the outer railway carriage neutral liquid sanitising agent of a kind of motor-car of the present invention is not because raw material uses strong acid, strongly alkaline compound, and used green surfactant, environmentally friendly, belong to green environmental protection technique, outward appearance corrodibility to the locomotive outside surface is 1 grade, and etching extent is about 1～2mg.
Embodiment
Below by embodiment the present invention is further set forth, but do not limit the present invention.
The outer railway carriage neutral liquid sanitising agent of a kind of motor-car of the present invention is to the testing method of the etching extent of locomotive outside surface, being about to fill 400mL concentration is the 5%(massfraction) the medicine cylinder of the aqueous solution (the outer railway carriage neutral liquid sanitising agent of motor-car: water is 5:100) of the outer railway carriage neutral liquid sanitising agent of motor-car put in the thermostat water bath, constant temperature is in (50 ± 2) ℃;
Aluminium flake is placed the dry 30min of (40 ± 2) ℃ baking oven, cooling, its weight of weighing is M1;
Then aluminium flake is hung in the medicine cylinder, and allow test piece entirely be immersed in the aqueous solution that concentration is the outer railway carriage neutral liquid sanitising agent of 5% motor-car, behind 10min, take out test piece, with the distilled water rinsing of newly boiling rear cooling (pendulum is washed 10 times), dehydration and hot blast drying in acetone or dehydrated alcohol check outward appearance.Again test piece (connecting the test piece frame) is placed the dry 30min of (40 ± 2) ℃ baking oven, cooling, its weight of weighing are M2 in moisture eliminator.
Test piece etching extent X2 represents with the mg of its quality change, calculates by formula (1).
X2=(M1-M2) * 1000 formula 1
Quality before M1 in the formula---the test piece corrosion test, g;
M2---the quality after the test piece corrosion test, g.
Embodiment 1
The outer railway carriage neutral liquid sanitising agent of a kind of motor-car, count by weight percentage that its raw material forms and content is as follows:
Organic bases 15.0%
Organic acid 13.0%
Inorganic salt 5.0%
Organic solvent 0.01%
Erosion resistant agent 10%
Nonionogenic tenside 1.0%
Anion surfactant 20.0%
Surplus is water;
Wherein said organic bases is quadrol, the technical grade product that the happy safe chemical industry in Tianjin company limited produces;
Described organic acid is citric acid, the technical grade product that Jinan Fu Anda chemical industry company limited produces;
Described inorganic salt are Trisodium Citrate, the technical grade product that Zhengzhou, henan Jin Hai chemical company produces;
Described organic solvent is ethylene glycol, the technical grade product that Ningbo Chinese businessman's chemical industry company limited produces;
Described erosion resistant agent is benzotriazole, the technical grade product that Nanxiang Reagent Co., Ltd., Shanghai produces;
Described nonionogenic tenside is aliphatic acid polyethenoxy ether (AEO9), the technical grade product that the chemical company limited of the husky rope in Nanjing (China) produces;
Described anion surfactant is polyoxyethylenated alcohol sodium sulfate (AES), the technical grade product that the chemical company limited of the husky rope in Nanjing (China) produces.
The preparation method of the outer railway carriage neutral liquid sanitising agent of above-mentioned a kind of motor-car comprises the steps:
(1), water is heated to 40～60 ℃ in agitator kettle;
(2), when stirring, Trisodium Citrate, benzotriazole, citric acid, quadrol, aliphatic acid polyethenoxy ether (AEO9), polyoxyethylenated alcohol sodium sulfate (AES), alkyl glycoside (APG) are joined in the agitator kettle successively, mix;
(3), stopped heating after all raw materials melt;
(4), again be cooled to about 45 ℃, add ethylene glycol, stir 30min, system mixes and namely gets the outer railway carriage neutral liquid sanitising agent of a kind of motor-car.
The outer railway carriage neutral liquid sanitising agent of a kind of motor-car of above-mentioned gained is 1 grade to the outward appearance corrodibility on aluminium flake surface after testing, and etching extent is 1.5mg.
Embodiment 2
The outer railway carriage neutral liquid sanitising agent of a kind of motor-car, count by weight percentage that its raw material forms and content is as follows:
Organic bases 30.0%
Organic acid 30.0%
Inorganic salt 10.0%
Organic solvent 10%
Erosion resistant agent 0.01%
Nonionogenic tenside 20.0%
Anion surfactant 1.0%
Surplus is water;
Wherein said organic bases is trolamine, the technical grade product that triumphant Dihua, Shandong worker company limited produces;
Described organic acid is acetic acid, the technical grade product that Henan Xuan Yuan chemical industry company limited produces;
Described inorganic salt are sodium-acetate, and the technical grade product that Industrial Co., Ltd. produces is opened in upper Haifeng county;
Described organic solvent is propylene glycol, grinds the technical grade product that territory (Shanghai) bio tech ltd is produced;
Described erosion resistant agent is coloured glaze base benzothiazole, the technical grade product that the easy sharp bio tech ltd in Shanghai is produced;
Described nonionogenic tenside is fatty diglycollic amide (6501), is the technical grade product of Shanghai wheat human relations daily use chemicals company limited production;
Described anion surfactant is sodium alkyl sulfate (K12), the excellent technical grade product of raising Industrial Co., Ltd.'s production in Shanghai.
The preparation method of the outer railway carriage neutral liquid sanitising agent of above-mentioned a kind of motor-car comprises the steps:
(1), water is heated to 40～60 ℃ in agitator kettle;
(2), when stirring, sodium-acetate, coloured glaze base benzothiazole, acetic acid, trolamine, fatty diglycollic amide (6501), sodium alkyl sulfate (K12) are joined in the agitator kettle successively, mix;
(3), stopped heating after all raw materials melt;
(4), again be cooled to about 45 ℃, add propylene glycol, stir 30min, system mixes and namely gets the outer railway carriage neutral liquid sanitising agent of a kind of motor-car.
The outer railway carriage neutral liquid sanitising agent of a kind of motor-car of above-mentioned gained is 1 grade to the outward appearance corrodibility on aluminium flake surface after testing, and etching extent is 2.0mg.
Embodiment 3
The outer railway carriage neutral liquid sanitising agent of a kind of motor-car, count by weight percentage that its raw material forms and content is as follows:
Organic bases 1.0%
Organic acid 1.0%
Inorganic salt 1.0%
Organic solvent 5.0%
Erosion resistant agent 5.0%
Nonionogenic tenside 10.0%
Anion surfactant 10.0%
Surplus is water;
Wherein said organic bases is monoethanolamine, the technical grade product that triumphant Dihua, Shandong worker company limited produces;
Described organic acid is oxalic acid, the technical grade product that the rich chemical industry company limited of Weifang China produces;
Described inorganic salt are yellow soda ash, the technical grade product that Wuhan China wound chemical industry company limited produces;
Described organic solvent is amylalcohol, and the technical grade product that former chemical company limited produces is newly changed in Nanjing;
Described erosion resistant agent is poly-phosphate, the technical grade product that Shijiazhuang ten thousand smelting phosphorus industry company limited produces;
Described nonionogenic tenside is aliphatic acid polyethenoxy ether (AEO7), the technical grade product that the chemical company limited of the husky rope in Nanjing (China) produces;
Described anion surfactant is sodium alkyl benzene sulfonate, the technical grade product that Nanjing card Neil science and technology limited Company is produced.
The preparation method of the outer railway carriage neutral liquid sanitising agent of above-mentioned a kind of motor-car comprises the steps:
(1), water is heated to 40～60 ℃ in agitator kettle;
(2), when stirring, yellow soda ash, poly-phosphate, oxalic acid, monoethanolamine, aliphatic acid polyethenoxy ether (AEO7), sodium alkyl benzene sulfonate are joined in the agitator kettle successively, mix;
(3), stopped heating after all raw materials melt;
(4), again be cooled to about 45 ℃, add amylalcohol, stir 30min, system mixes and namely gets the outer railway carriage neutral liquid sanitising agent of a kind of motor-car.
The outer railway carriage neutral liquid sanitising agent of a kind of motor-car of above-mentioned gained is 1 grade to the outward appearance corrodibility on aluminium flake surface after testing, and etching extent is 1.0mg.
Above said content only is the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.
Claims (6)
1. the outer railway carriage neutral liquid sanitising agent of a motor-car is characterized in that counting by weight percentage that its raw material forms and content is as follows:
Organic bases 1～30%
Organic acid 1～30%
Inorganic salt 1～10%
Organic solvent 0.01～10%
Erosion resistant agent 0.01～10%
Nonionogenic tenside 1～20%
Anion surfactant 1～20%
Surplus is water;
Described organic bases is one or more the compound in trolamine, diethanolamine, monoethanolamine and the quadrol;
Described organic acid is one or more the compound in citric acid, acetic acid, oxalic acid and the tartrate; Organic acid add-on equivalent is in organic bases;
Described inorganic salt are strong base-weak acid salt, the compound of one or more in yellow soda ash, Trisodium Citrate and the sodium-acetate;
Described organic solvent is one or more one or more composite of compound in propylene glycol, ethylene glycol, butanols and the amylalcohol;
Described erosion resistant agent is one or more the compound in molybdate, tungstate, silicate, poly-phosphate, phosphonic acids or phosphonate, phosphine carboxylic acid, mercaptobenzothiazole, benzotriazole and the sulfonated lignin;
Described nonionogenic tenside is one or more the compound in fatty alcohol-polyoxyethylene ether, fatty diglycollic amide and the alkyl glycoside;
Described fatty alcohol-polyoxyethylene ether, structural formula is:
, wherein Fatty Alcohol(C12-C14 and C12-C18) carbonatoms n is between 8～20, and oxygen ethene is counted m between 3～20 in the polyoxyethylene;
Described fatty diglycollic amide, structural formula is:
Wherein the carbonatoms of lipid acid is between 8～20;
Described alkyl glycoside, structural formula is:
The carbonatoms of hydrocarbon chain is between 8～20 in the alkyl wherein, and n is between 3～20;
Described anion surfactant is one or more the compound in Fatty Alcohol(C12-C14 and C12-C18) carboxylate salt, sodium alkyl benzene sulfonate, fatty alcohol polyoxyethylene ether sulfate, aliphatic alcohol sulfate, alkylsulfonate and the alkyl phosphate salt;
Described Fatty Alcohol(C12-C14 and C12-C18) carboxylate salt, wherein the Fatty Alcohol(C12-C14 and C12-C18) carbonatoms is between 8～20;
Described sodium alkyl benzene sulfonate, wherein the alkyl carbon atoms number is between 8～20;
Described fatty alcohol polyoxyethylene ether sulfate, wherein the Fatty Alcohol(C12-C14 and C12-C18) carbonatoms is between 8～20, and oxygen ethene number is between 3～20 in the polyoxyethylene;
Described aliphatic alcohol sulfate, wherein the Fatty Alcohol(C12-C14 and C12-C18) carbonatoms is between 8～20;
Described alkylsulfonate, wherein the alkyl carbon atoms number is between 8～20;
Described alkyl phosphate salt, wherein the alkyl carbon atoms number is between 8～20.
2. the outer railway carriage neutral liquid sanitising agent of a kind of motor-car as claimed in claim 1 is characterized in that counting by weight percentage that its raw material forms and content is as follows:
Organic bases 15.0%
Organic acid 13.0%
Inorganic salt 5.0%
Organic solvent 0.01%
Erosion resistant agent 10%
Nonionogenic tenside 1.0%
Anion surfactant 20.0%
Surplus is water;
Wherein said organic bases is quadrol;
Described organic acid is citric acid;
Described inorganic salt are Trisodium Citrate;
Described organic solvent is ethylene glycol;
Described erosion resistant agent is benzotriazole;
Described nonionogenic tenside is fatty alcohol-polyoxyethylene ether;
Described anion surfactant is polyoxyethylenated alcohol sodium sulfate.
3. the outer railway carriage neutral liquid sanitising agent of a kind of motor-car as claimed in claim 1 is characterized in that counting by weight percentage that its raw material forms and content is as follows:
Organic bases 30.0%
Organic acid 30.0%
Inorganic salt 10.0%
Organic solvent 10%
Erosion resistant agent 0.01%
Nonionogenic tenside 20.0%
Anion surfactant 1.0%
Surplus is water;
Wherein said organic bases is trolamine;
Described organic acid is acetic acid;
Described inorganic salt are sodium-acetate;
Described organic solvent is propylene glycol;
Described erosion resistant agent is mercaptobenzothiazole;
Described nonionogenic tenside is fatty diglycollic amide;
Described anion surfactant is sodium alkyl sulfate.
4. the outer railway carriage neutral liquid sanitising agent of a kind of motor-car as claimed in claim 1 is characterized in that counting by weight percentage that its raw material forms and content is as follows:
Organic bases 1.0%
Organic acid 1.0%
Inorganic salt 1.0%
Organic solvent 5.0%
Erosion resistant agent 5.0%
Nonionogenic tenside 10.0%
Anion surfactant 10.0%
Surplus is water;
Wherein said organic bases is monoethanolamine;
Described organic acid is oxalic acid;
Described inorganic salt are yellow soda ash;
Described organic solvent is amylalcohol;
Described erosion resistant agent is poly-phosphate;
Described nonionogenic tenside is fatty alcohol-polyoxyethylene ether;
Described anion surfactant is sodium alkyl benzene sulfonate.
5. such as the preparation method of claim 1,2, the outer railway carriage neutral liquid sanitising agent of 3 or 4 described a kind of motor-cars, it is characterized in that comprising the steps:
(1), water is heated to 40～60 ℃ in agitator kettle;
(2), when stirring, organic bases, organic acid, inorganic salt, erosion resistant agent, nonionogenic tenside, anion surfactant are joined in the water of agitator kettle successively, mix;
(3), stopped heating after all feed composition meltings;
(4), be cooled to about 45 ℃, add organic solvent, stir 20～100min, the system for the treatment of evenly namely gets the outer railway carriage neutral liquid sanitising agent of a kind of motor-car.
6. the application method when railway carriage cleans outside motor-car such as claim 1,2, the outer railway carriage neutral liquid sanitising agent of 3 or 4 described a kind of motor-cars, it is characterized in that at first the volume ratio according to the outer railway carriage neutral liquid Qing Jie Ji ︰ water of motor-car is the ratio of 1 ︰ 5～20, water can use the outer railway carriage neutral liquid sanitising agent dilution of motor-car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201110375236 CN102517175B (en) | 2011-11-23 | 2011-11-23 | Neutral liquid cleaning agent for outside surface of bullet train and preparation method and applications thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110375236 CN102517175B (en) | 2011-11-23 | 2011-11-23 | Neutral liquid cleaning agent for outside surface of bullet train and preparation method and applications thereof |
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| CN102517175A CN102517175A (en) | 2012-06-27 |
| CN102517175B true CN102517175B (en) | 2013-10-16 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103666874A (en) * | 2013-11-22 | 2014-03-26 | 南通信一服饰有限公司 | Paint cleaner for fabric |
| CN103740487B (en) * | 2013-12-24 | 2015-05-20 | 长沙艾森设备维护技术有限公司 | Outer surface cleaning agent for high-speed trains and using method thereof |
| CN105297057A (en) * | 2015-11-09 | 2016-02-03 | 广东新球清洗科技股份有限公司 | Hydrocarbon oil removal rust removal cleaning agent |
| CN108409161A (en) * | 2018-04-20 | 2018-08-17 | 深圳市海风润滑技术有限公司 | A kind of long-life decoating liquid of high temperature diphasic system |
| CN110272783B (en) * | 2019-07-14 | 2021-03-26 | 衡阳市昌鑫化工有限公司 | Multifunctional cleaning agent and preparation method thereof |
| CN112481047B (en) * | 2020-12-09 | 2021-12-14 | 武汉科瑞博科技有限公司 | Environment-friendly neutral train bogie cleaning agent and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1248615A (en) * | 1999-09-22 | 2000-03-29 | 赵中夏 | Descaling agent for cleaning |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1248615A (en) * | 1999-09-22 | 2000-03-29 | 赵中夏 | Descaling agent for cleaning |
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