CN104245912A

CN104245912A - Method for producing alkali detergent composition for steel plate

Info

Publication number: CN104245912A
Application number: CN201380020586.1A
Authority: CN
Inventors: 池内弘子; 土井康广
Original assignee: Kao Corp
Current assignee: Kao Corp
Priority date: 2012-06-29
Filing date: 2013-06-27
Publication date: 2014-12-24
Anticipated expiration: 2033-06-27
Also published as: JP2014029020A; WO2014003112A1; CN104245912B; JP6026965B2

Abstract

A method for producing an alkali detergent composition for a steel plate, said method comprising step (1) for introducing components including an alkaline agent, a chelating agent, a nonionic surfactant, a slurrying agent, a dispersing agent and water into a stirring tank that is equipped with stirring blades, and step (2) for mixing these components by rotating the stirring blades, wherein: in step (1), the aforesaid components are introduced into the stirring tank at the following ratio, i.e., 34-45 wt% of the alkaline agent, 0.5-12 wt% of the chelating agent, 0.1-8 wt% of the nonionic surfactant, 0.4-4.5 wt% of the slurrying agent, and 0.05-2.0 wt% of the dispersing agent; and the dispersing agent is at least one member selected from the group consisting of compounds represented by general formulae (1) to (5). According to the method of the present invention for producing an alkali detergent composition for a steel plate, a method for producing a concentrated detergent composition with high storage stability in a stirring tank, said tank being equipped with stirring blades, and a concentrated detergent composition with high storage stability can be provided.

Description

The steel plate manufacture method of alkalis composition

Technical field

The present invention relates to manufacture method that use when washing the greasy dirt and iron powder etc. that are attached to the steel plate (steel band) comprising iron, aluminium, copper etc., steel plate alkalis composition.

Background technology

With regard to the degreasing washing of surface of steel plate, being necessary as pickling and the pre-treatment of the surface-treated such as plating, application, is the good no very large factor determining product.As the dirt being attached to surface of steel plate, the solids foul etc. such as rolling oil, antirust wet goods greasy dirt, iron powder of attachment when can list cold rolling.Particularly steel plate in recent years cold rolling in, the rolling oil using applicable grinding machine spatter property and productivity to improve, needs the washing composition of the detergency had the oily excellence of rolling.

On the other hand, even if require that above-mentioned washing composition also has mobility and excellent storage stability for high density.In addition, also require that the foaming of above-mentioned washing composition is little and operability excellent.

In Japanese Unexamined Patent Publication 7-41975 publication, the alcohol, tensio-active agent, lipid acid, sequestrant etc. of usual insoluble in high-alkalinity can be engaged in, and meet high detergency required by washing composition, press down bubble property, low COD, low cost as object, disclose high density single-liquid type alkalis composition, it is characterized in that, contain with Na ₂there is in the alkaline agent of O benchmark meter 10 ~ 35 % by weight and a part of 0.1 ~ 20 % by weight the aliphatics based compound of 2 ~ 6 polar groups.

In Japanese Unexamined Patent Publication 2011-117043 publication, by be provided in 40 ~ 60 DEG C the wash temperature of low temperature under, suppress steel plate to slide on roller and detersive efficiency good, the dirt that removes steel plate can be washed and can control foaming, steel plate alkalis composition as object, disclose the steel plate alkalis composition of 2 kinds of polyoxyalkylene alkyl, sequestrant and water containing alkaline agent, the secondary alcohol making carbon number be 9 ~ 15 and oxyalkylene bonding.

In Japanese Unexamined Patent Publication 2001-316693 publication, to provide that detergency is excellent, washing time can not foam, stably can take care of under thick state and dysgenic aqueous alkaline detergent composition will be brought as object to global environment, disclose aqueous alkaline detergent composition, it is characterized in that, comprise alkaline agent and there is the polyoxyethylene amino ethers of alkyl or alkenyl of straight or branched of carbon number 10 ~ 20.

Summary of the invention

The present invention is the manufacture method of steel plate alkalis composition, and it has following operation: the composition comprising alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), dispersion agent (E) and water (F) is imported to the operation (1) had in the steel basin of stirring rake, and the operation (2) above-mentioned stirring rake being rotated and each composition is mixed, wherein, the ratio importing to the described composition in described steel basin in described operation (1) is: alkaline agent (A) is more than 34 % by weight and less than 45 % by weight, sequestrant (B) is more than 0.5 % by weight and less than 12 % by weight, nonionic surfactant (C) is more than 0.1 % by weight and less than 8 % by weight, pulping agent (D) is more than 0.4 % by weight and less than 4.5 % by weight, dispersion agent (E) is more than 0.05 % by weight and less than 2.0 % by weight, described dispersion agent (E) is for being selected from the compound of more than a kind in the compound shown in following general formula (1) ~ (5), described steel plate alkalis composition for comprise water (F) mutually in be dispersed with the dispersion that particle diameter is less than the oil droplet of the described nonionic surfactant (C) of 50 μm.

(in above-mentioned general formula (1), R ¹for carbon number more than 1 and the alkyl of less than 4, R ²for hydrogen atom or carbon number more than 1 and the alkyl of less than 3, R ³for hydrogen atom or methyl.〕

R ⁴-O-(A ¹O) _m-H (2)

(in described general formula (2), R ⁴for carbon number more than 1 and the alkyl of less than 6, A ¹o is the alkylene oxide group of carbon number 2 or 3, m is A ¹the average addition mole number of O and be more than 0 and less than 3, (A ¹o) total carbon number of m is more than 0 and less than 6.〕

(in described general formula (3), R ⁵for the alkyl of hydrogen atom or carbon number 1 or 2.〕

(in described general formula (4), R ⁶for hydrogen atom or methyl.〕

(in described general formula (5), R ⁷for-(A ²o) _n3-H or the compound shown in following general formula (6),

A ²o is the alkylene oxide group of carbon number 2 or 3, and n1, n2, n3 and n4 are separately for representing A ²the integer of the addition mole number of O, the mean value of the total of n1, n2, n3 and n4 is more than 0.5 and less than 8.〕

And then, the present invention is steel plate alkalis composition, it is containing alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), the steel plate alkalis composition of dispersion agent (E) and water (F), wherein, the ratio of described each composition is: alkaline agent (A) more than 34 % by weight and less than 45 % by weight, sequestrant (B) more than 0.5 % by weight and less than 12 % by weight, nonionic surfactant (C) more than 0.1 % by weight and less than 8 % by weight, pulping agent (D) more than 0.4 % by weight and less than 4.5 % by weight, dispersion agent (E) more than 0.05 % by weight and less than 2.0 % by weight, described dispersion agent (E) is for being selected from the compound of more than a kind in the compound shown in described general formula (1) ~ (5), described steel plate alkalis composition for comprise water (F) mutually in be dispersed with the dispersion that particle diameter is less than the oil droplet of the described nonionic surfactant (C) of 50 μm.

Embodiment

In Japanese Unexamined Patent Publication 7-41975 publication and Japanese Unexamined Patent Publication 2011-117043 publication, although manufactured concentrated type washing composition, but in order to obtain the detergent composition of excellent storage stability, still need the operation that the device using pipe stirrer, homomixer and clarifixator etc. to have high shear force stirs the raw material after cooperation.In addition, although the aqueous alkaline detergent composition of Japanese Unexamined Patent Publication 2001-316693 publication can stablize keeping, if but the shearing force of raw material when stirring comprised as the polyoxyethylene amino ethers of oil content is low, be then difficult to make oil content carry out small particle size, the tendency that existence and stability reduces.Therefore, expect following method: use the low whipping appts with stirring rake of shearing force and do not use the whipping appts of high shear force, manufacturing the concentrated type detergent composition of excellent storage stability.

Problem of the present invention is, is provided in the manufacture method of the concentrated type detergent composition of excellent storage stability in the steel basin with stirring rake.In addition, problem of the present invention is, provides the concentrated type detergent composition of excellent storage stability.

The present invention is the manufacture method of steel plate alkalis composition, it has to comprise alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), the composition of dispersion agent (E) and water (F) imports to the manufacture method of the steel plate alkalis composition of the operation (1) had in the steel basin of stirring rake and the operation (2) described stirring rake being rotated and is mixed by each composition, wherein, the ratio importing to the described composition in described steel basin in described operation (1) is: alkaline agent (A) more than 34 % by weight and less than 45 % by weight, sequestrant (B) more than 0.5 % by weight and less than 12 % by weight, nonionic surfactant (C) more than 0.1 % by weight and less than 8 % by weight, pulping agent (D) more than 0.4 % by weight and less than 4.5 % by weight, dispersion agent (E) more than 0.05 % by weight and less than 2.0 % by weight, described dispersion agent (E) is for being selected from the compound of more than a kind in the compound shown in described general formula (1) ~ (5), described steel plate alkalis composition for comprise water (F) mutually in be dispersed with the dispersion of particle diameter lower than the oil droplet of the described nonionic surfactant (C) of 50 μm.

And then, the present invention is steel plate alkalis composition, and the application of alkalis composition as the washing composition of steel plate of this steel plate, wherein, described steel plate alkalis composition is for containing alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), the steel plate alkalis composition of dispersion agent (E) and water (F), wherein, the ratio of described each composition is: alkaline agent (A) more than 34 % by weight and less than 45 % by weight, sequestrant (B) more than 0.5 % by weight and less than 12 % by weight, nonionic surfactant (C) more than 0.1 % by weight and less than 8 % by weight, pulping agent (D) more than 0.4 % by weight and less than 4.5 % by weight, dispersion agent (E) more than 0.05 % by weight and less than 2.0 % by weight, described dispersion agent (E) is for being selected from the compound of more than a kind in the compound shown in described general formula (1) ~ (5), described steel plate alkalis composition for comprise water (F) mutually in be dispersed with the dispersion that particle diameter is less than the oil droplet of the described nonionic surfactant (C) of 50 μm.

According to the present invention, can be provided in the manufacture method of the concentrated type detergent composition of excellent storage stability in the steel basin with stirring rake.In addition, according to the present invention, the concentrated type detergent composition of excellent storage stability can also be provided.

The embodiment mechanism of effect of the present invention is still uncertain, but can estimate as follows.

If coordinate the raw material of detergent composition, then owing to there is alkaline agent in a large number, thus water and alkaline agent interact, and nonionogenic tenside cannot be dissolved in the water.Consequently, nonionogenic tenside forms oil droplet.If utilize high shear force to stir, then the particle diameter of oil droplet diminishes, storage stability improves, if shearing force is weak, then there is the situation that the particle diameter of oil droplet is large, even if there is sequestrant, pulping agent, As time goes on oil droplet also can be unified mutually, the oil droplet that further generation is large, finally as oil phase and aqueous phase separation.

On the other hand, as described herein, if use the specific compound with the molecular dimension of the appropriateness of hydroxyl and shorter alkyl as dispersion agent, then dispersion agent and sequestrant and pulping agent are together adsorbed onto the interface of oil droplet and water, the surface tension of oil droplet reduces, and oil droplet easily destroys, even if be the stirring of low-shearing power, the dispersion of oil droplet also becomes easy, and the particle diameter of oil droplet diminishes.This can be as follows by presumption: the oil droplet that particle diameter temporarily diminishes is chelated agent, pulping agent and dispersion agent stabilization, improves the storage stability of detergent composition.That is, when utilizing high shear force to stir, even without specific dispersion agent, also the detergent composition of excellent in stability can be obtained, and when low-shearing power, by coordinating specific dispersion agent, thus the detergent composition of excellent in stability can be obtained.

Below, an embodiment of the invention are described.

The manufacture method of present embodiment has following operation: the composition comprising alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), dispersion agent (E) and water (F) is imported to the operation (1) had in the steel basin of stirring rake; And described stirring rake is rotated and mixes the operation (2) of each composition.

< is about operation (1) >

< material composition >

< alkaline agent (A) >

The alkaline agent (A) used in present embodiment, in order to ensure the removability of greasy dirt, as long as be water miscible alkaline agent, just can use any one.As concrete example, the alkali-metal borates etc. such as alkali-metal carbonate, Sodium Tetraborate such as the alkali-metal phosphoric acid salt of alkali-metal silicate, the tertiary sodium phosphates etc. such as the alkali-metal oxyhydroxide such as sodium hydroxide, potassium hydroxide, sodium orthosilicate, Starso, sodium sesquisilicate, disodium bicarbonate, sodium bicarbonate, hydrogen-carbonate dipotassium can be used.The water-soluble alkaline agent of more than two kinds can be combined.From the view point of raising detergency, the oxyhydroxide of preferred as alkali and alkali-metal silicate, more preferably alkali-metal oxyhydroxide.In the middle of these, preferred sodium hydroxide, potassium hydroxide, sodium orthosilicate and Starso, more preferably sodium hydroxide or potassium hydroxide.

In present embodiment, the use level of alkaline agent (A) is more than 34 % by weight and less than 45 % by weight.From the view point of the storage stability of washing composition, the use level of alkaline agent (A) is preferably more than 35 % by weight, is more preferably more than 37 % by weight.From the view point of suppressing the viscosity of washing composition to rise, the use level of alkaline agent (A) is preferably less than 42 % by weight, is more preferably less than 40 % by weight.The use level of alkaline agent (A) is equivalent to the content of the alkaline agent in steel plate alkalis composition.

< sequestrant (B) >

Can estimate as follows: the sequestrant (B) used in present embodiment makes the oil droplet of nonionic surfactant (C) etc. (following, also referred to as " oil droplet ") particle diameter diminish and improve storage stability, in addition, to dirt generation effects such as iron soaps by chelatings such as iron ions, form fatty acid sodium soap, thus easily dissolve dirt, the detergency of oil is improved.As sequestrant (B), the rudimentary amine salt of the glyconic acids such as gluconic acid, glucoheptonic acid, R-Glyceric acid, tetronic acid, pentonic acid, saccharinic acid, heptonic acid or its an alkali metal salt or carbon number 1 ~ 4 can be used; An alkali metal salt of the aminocarboxylic acids such as nitrilotriacetic acid(NTA), ethylenediamine tetraacetic acid (EDTA), ethylenediamine-N,N'-diacetic acid(EDDA), four ethylene tetra six acetic acid or rudimentary amine salt; An alkali metal salt of citric acid, oxysuccinic acid etc. or its hydroxycarboxylic acid or rudimentary amine salt; The phosphonic acids such as Amino Trimethylene Phosphonic Acid, 1-Hydroxy Ethylidene-1,1-Diphosphonic Acid, ethylenediamine tetramethylene phosphonic acid, diethylenetriamine pentamethylenophosphonic acid(DTPP) or its an alkali metal salt or rudimentary amine salt; And the alkanolamine salt such as above-mentioned monoethanolamine, diethanolamine, trolamine.In the middle of these, from the view point of the detergency of oil, be preferably uronic acid or its salt, be preferably an alkali metal salt or rudimentary amine salt.Wherein, from the view point of the detergency of oil, be preferably gluconic acid, glucoheptonic acid an alkali metal salt or rudimentary amine salt, be more preferably gluconate.From the view point of raising detergency, an alkali metal salt is preferably sodium salt.Sequestrant (B), as long as use at least a kind, also may be combined with and uses two or more.Such as, the combination of an alkali metal salt of gluconic acid and an alkali metal salt of ethylenediamine tetraacetic acid (EDTA) can be used.

In present embodiment, the use level of sequestrant (B) is more than 0.5 % by weight and less than 12 % by weight.Diminish from the view point of the particle diameter of the oil droplet making nonionic surfactant (C), the use level of sequestrant (B) be preferably more than 1 % by weight, be more preferably more than 3 % by weight, more preferably more than 5 % by weight, be further preferably more than 6 % by weight.Diminish from the view point of the particle diameter of the oil droplet making nonionic surfactant (C), the use level of sequestrant (B) is preferably less than 10 % by weight, is more preferably less than 8 % by weight.If this use level is more than 0.5 % by weight, then can make oil droplet miniaturization, washing composition is stablized, if this use level is less than 12 % by weight, then the dissolving of sequestrant is easy.The use level of sequestrant (B) is equivalent to the content of the sequestrant in steel plate alkalis composition.

< nonionic surfactant (C) >

The nonionic surfactant (C) used in present embodiment can use the nonionic surfactant usually used in alkalis.Wherein, nonionic surfactant (C) does not comprise the compound belonging to dispersion agent (E).As the nonionic surfactant used in present embodiment (C), can be used such as, make to have the compound of monohydroxy-alcohol that carbon number is the alkyl of more than 8 and the structure that oxirane addition obtains, make to have the compound of monoamine or diamine that carbon number is the alkyl of more than 8 and the structure that oxirane addition obtains.As object lesson, polyoxyalkylene alkyl, polyoxyalkylene alkenyl ether, polyoxyethylene alkyl amine, polyoxyethylene alkenyl amine can be used.

From the view point of the detergency of oil, nonionic surfactant (C) preferably uses at least a kind of compound be selected from the compound shown in following general formula (7) and the compound shown in following general formula (8).

R ⁸-O-(A ³O) ₀-H (7)

(in described general formula (7), R ⁸represent carbon number more than 8 and the alkyl of less than 18, A ³o represents carbon number more than 2 and the alkylene oxide group of less than 4, o are A ³the average addition mole number of O and be more than 2 and less than 20.〕

(in described general formula (8), R ⁹represent carbon number more than 8 and the alkyl of less than 18, A ⁴o is carbon number more than 2 and the alkylene oxide group of less than 4, p and q represent A separately ⁴the average addition mole number of O, p+q are more than 2 and less than 20.〕

From the view point of the detergency of oil, in described general formula (7), as R ⁸, carbon number more than 8 can be listed and the aliphatic alkyl of the straight or branched of less than 18.As this aliphatic alkyl, can list saturated (alkyl) and unsaturated (thiazolinyl).From the view point of the detergency of oil, R ⁸carbon number be preferably less than 14, be more preferably less than 12.As the concrete example of the compound shown in described general formula (7), polyoxyalkylene alkyl, polyoxyalkylene alkenyl ether can be listed.

In described general formula (7), A ³alkylene oxide group shown in O is ethyleneoxy group, propylidene oxygen base, butylene oxide base, from the view point of the storage stability of washing composition, preferably there is ethyleneoxy group and/or propylidene oxygen base, be more preferably there is ethyleneoxy group and propylidene oxygen base.

From the view point of the detergency of oil, in described general formula (7), A ³the average addition mole number o of the alkylene oxide group shown in O is more than 2, is preferably more than 4.From the view point of the detergency of oil, the A in described general formula (7) ³the average addition mole number o of the alkylene oxide group shown in O is less than 20, is preferably less than 16.

From the view point of the detergency of oil, in described general formula (8), as R ⁹, carbon number more than 8 can be listed and the aliphatic alkyl of the straight or branched of less than 18.As this aliphatic alkyl, can list saturated (alkyl) and unsaturated (thiazolinyl).From the view point of the detergency of oil, R ⁹carbon number be preferably more than 12, be more preferably more than 16.As the concrete example of the compound shown in described general formula (8), polyoxyethylene alkyl amine, polyoxyethylene alkenyl amine can be listed.

Nonionic surfactant (C), as long as use at least a kind, also can combinationally use two or more.

In described general formula (8), A ⁴alkylene oxide group shown in O is ethyleneoxy group, propylidene oxygen base, butylene oxide base, from the view point of detergency, is preferably ethyleneoxy group and/or propylidene oxygen base, is more preferably ethyleneoxy group.

From the view point of the detergency of oil, with regard to average addition mole number p and q of the alkylene oxide group in described general formula (8), p+q is more than 2, is preferably more than 5, is more preferably more than 8.From the view point of the detergency of oil, with regard to average addition mole number p and q of the alkylene oxide group in described general formula (8), p+q is less than 20, is more preferably less than 12.From the view point of the storage stability of washing composition, nonionic surfactant (C) is more preferably general formula (7) compared to general formula (8).

In present embodiment, the use level of nonionic surfactant (C) is more than 0.1 % by weight and less than 8 % by weight.In present embodiment, from the view point of the detergency of oil, the use level of nonionic surfactant (C) is preferably more than 0.5 % by weight, is more preferably more than 0.8 % by weight.From the view point of storage stability and the cost of washing composition, the use level of described nonionic surfactant (C) is preferably less than 5 % by weight, is more preferably less than 3 % by weight.The use level of nonionic surfactant (C) is equivalent to the content of the nonionic surfactant in steel plate alkalis composition.

< pulping agent (D) >

In present embodiment, pulping agent (D) can hydrous water soluble macromolecular carboxylic acid.With regard to the detergent composition of at least a kind comprising this water-soluble polymer carboxylic acid, even if in higher concentrations, the storage stability of detergent composition also can be improved with liquid or pulp-like.In addition, when by when being combined with the detergent composition dilute with water of water-soluble polymer carboxylic acid, by maintaining the dispersion of iron powder free in the washing procedure of steel plate, making it not easily be attached to steel plate, thus also contributing to the raising of detergency.

As water-soluble polymer carboxylic acid, be the polymer of the carboxylic acid comprising more than at least a kind, an alkali metal salt or the amine salt etc. such as such as acrylate homopolymer, acid-co-maleic acid, Alpha-hydroxy acrylate homopolymer, C5 alkene-maleic acid, isobutylene maleic multipolymer and their sodium salt can be used.From the view point of the storage stability improving detergent composition, in the middle of water-soluble polymer carboxylic acid, be preferably selected from more than a kind in acrylate homopolymer and acid-co-maleic acid.The water-soluble polymer carboxylic acid that water-soluble polymer carboxylic acid preferably dissolves in washing composition.In this specification sheets, water-soluble referring to dissolves more than 1g in water 100g.

The weight-average molecular weight (MW) of water-soluble polymer carboxylic acid is 1,000 ~ 100,000, be preferably 3,000 ~ 50,000, be more preferably 5,000 ~ 20,000, more preferably 5,000 ~ 10,000.Polymeric species when multipolymer can be block, also can be random.Water-soluble polymer carboxylic acid of more than two kinds can also be combined.It should be noted that, in this specification sheets, weight-average molecular weight is measured by the method recorded in embodiment.

In present embodiment, the use level of pulping agent (D) is more than 0.4 % by weight and less than 4.5 % by weight.From the view point of the storage stability of washing composition, the use level of pulping agent (D) is preferably more than 1 % by weight, is more preferably more than 1.2 % by weight.From the view point of can moderate control detergent composition viscosity and guarantee detergent composition pipe arrangement conveying, the use level of pulping agent (D) is preferably less than 3 % by weight, is more preferably less than 2 % by weight.The use level of pulping agent (D) is equivalent to the content of the pulping agent in steel plate alkalis composition.

From the view point of the storage stability of washing composition, pulping agent (D) is preferably more than 0.1 with the weight ratio (pulping agent (D)/nonionogenic tenside (C)) of nonionogenic tenside (C), is more preferably more than 1.From the view point of the storage stability of washing composition, the weight ratio (pulping agent (D)/nonionogenic tenside (C)) of pulping agent (D) and nonionogenic tenside (C) is preferably less than 50, be more preferably less than 15, more preferably less than 5, be further preferably less than 2.

< dispersion agent (E) >

In present embodiment, as dispersion agent (E), at least any more than a kind of being selected from the compound shown in described general formula (1) ~ (5) can be used.

Dispersion agent (E) can be prepared as follows described detergent composition, namely, even if use the whipping appts with stirring rake that shearing force is low, also the nonionogenic tenside etc. of insoluble in alkali aqueous solution can be made in the high concentration alkali aqueous solution to carry out miniaturization and dispersed, contain alkali with the high density with stable mobility.And then dispersion agent (E) makes detergent composition stabilization, on the other hand, also detrimentally affect can not be brought to the suds suppressing properties of washing composition.

In described general formula (1), R ¹for carbon number more than 1 and the alkyl of less than 4.From the view point of the storage stability of washing composition, R ¹carbon number be preferably more than 1 and less than 3.

In described general formula (1), R ²for hydrogen atom or carbon number more than 1 and the alkyl of less than 3.From the view point of the storage stability of washing composition, R ²carbon number be preferably more than 1 and less than 2.

In described general formula (1), R ³for hydrogen atom or methyl, from the view point of the storage stability of washing composition, be preferably hydrogen atom.

As the compound shown in described general formula (1), for N-alkyl monoalkanolamine or N, N-dialkyl group monoalkanolamine, specifically, N-Mono Methyl Ethanol Amine, N-ehtylethanolamine, N-n-butylethanolamine, N-isobutyl-thanomin, N-tertiary butyl thanomin, N-methyl isopropyl hydramine, N, N-dimethylethanolamine, N, N-diethylethanolamine, N can be used, N-methylethyl thanomin and N, N-dimethylisopro panolamine etc.In the middle of these, from the view point of the storage stability of washing composition, be preferably N-ehtylethanolamine, N, N-dimethylethanolamine, be more preferably N-ehtylethanolamine.

In described general formula (2), R ⁴for carbon number more than 1 and the alkyl of less than 6.As R ⁴aliphatic alkyl, can list saturated (alkyl) and unsaturated (thiazolinyl), from the view point of the storage stability of washing composition, preferably saturated.In addition, at R ⁴carbon number when being more than 3, as aliphatic alkyl, straight chain and side chain can be listed, from the view point of the storage stability of washing composition, be preferably straight chain.From the view point of the storage stability of washing composition, R ⁴carbon number be preferably more than 2, be more preferably more than 3.From the view point of the storage stability of washing composition, R ⁴carbon number be preferably less than 5, be more preferably less than 4.

In described general formula (2), the carbon number of alkylene oxide group is 2 or 3, from the view point of the storage stability of washing composition, is preferably 2.

In described general formula (2), the average addition mole number m of alkylene oxide group is more than 0 and less than 3.From the view point of the storage stability of washing composition, the average addition mole number m of alkylene oxide group is preferably more than 1, is more preferably less than 2.

In described general formula (2), total carbon number of alkylene oxide group is more than 0 and less than 6.From the view point of the storage stability of washing composition, total carbon number of alkylene oxide group is preferably more than 2.From the view point of the storage stability of washing composition, total carbon number of alkylene oxide group is preferably less than 4.

As the compound shown in described general formula (2), carbon number more than 1 can be used and the primary alconol of less than 6, their ethylene oxide adduct and their propylene oxide adduct.As carbon number more than 1 and the object lesson of the primary alconol of less than 6, methyl alcohol, ethanol, n-propyl alcohol, Virahol, propyl carbinol, isopropylcarbinol, sec-butyl alcohol, the trimethyl carbinol, Pentyl alcohol and n-hexyl alcohol etc. can be used.In addition, average more than 1 of their oxyethane can also be used and average more than 1 of less than 3 moles affixtures and their propylene oxide and less than 3 moles affixtures, that is, alkylene glycol monoalky lether.As object lesson, ethylene glycol monomethyl ether, triethylene glycol monomethyl ether, ethyleneglycol monopropylether, Diethylene Glycol list isopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, triethylene glycol butyl ether, ethylene glycol list ethyl isobutyl ether, Diethylene Glycol list ethyl isobutyl ether, triethylene glycol list ethyl isobutyl ether, ethylene glycol ether, propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, ethylene glycol monoallyl ether can be used.

In described general formula (3), R ⁵for the alkyl of hydrogen atom or carbon number 1 or 2.As the compound shown in described general formula (3), total carbon number can be used to be more than 2 and 1, the 2-glycol of less than 4.Specifically, spent glycol, propylene glycol and butyleneglycol can be made.

In described general formula (4), R ⁶for hydrogen atom or methyl, from the view point of the storage stability of washing composition, preferable methyl.As the compound shown in described general formula (4), N-(beta-amino ether) thanomin and N-(beta-amino ether) α-amino isopropyl alcohol can be used.In the middle of these, from the view point of the storage stability of washing composition, preferred N-(beta-amino ether) α-amino isopropyl alcohol.

In described general formula (5), R ⁷for-(A ²o) _n1-H or the compound shown in described general formula (6), A ²the alkylene oxide group of O to be carbon number be 2 or 3, being preferably carbon number is 2.N1, n2, n3 and n4 are respectively and represent A ²the integer of the addition mole number of O.The mean value of the total of n1, n2, n3 and n4 in the compound shown in general formula (5) is more than 0.5 and less than 8.0, from the view point of the storage stability of washing composition, be preferably more than 1.0, be more preferably more than 1.5 and preferably less than 5.0, be more preferably less than 3.5, more preferably less than 2.5.

As the compound shown in described general formula (5), can use: make to be selected from the compound of more than a kind in glycerine and Glycerol dimer, with oxyethane and/or propylene oxide addition and the compound that obtains.From the view point of the storage stability of washing composition, preferably make glycerine, with oxyethane and/or propylene oxide addition and the compound that obtains.

From the view point of the storage stability of washing composition, in the middle of dispersion agent (E), the compound shown in preferred formula (1) and the compound shown in general formula (4).Specifically, from the view point of the storage stability of washing composition, be preferably N-ehtylethanolamine and N-(beta-amino ether) α-amino isopropyl alcohol, from the view point of the detergency of steel plate, be more preferably N-ehtylethanolamine.

In present embodiment, the use level of dispersion agent (E) is more than 0.05 % by weight and less than 2.0 % by weight.From the view point of the storage stability of detergent composition, the use level of dispersion agent (E) is preferably more than 0.1 % by weight, is more preferably more than 0.3 % by weight, more preferably more than 0.4 % by weight.From the view point of the storage stability of detergent composition and the cooperation cost of washing composition, the use level of dispersion agent (E) is preferably less than 1.8 % by weight, more preferably less than 1.5 % by weight, be further preferably less than 1.0 % by weight.The use level of dispersion agent (E) is equivalent to the content of the dispersion agent in steel plate alkalis composition.

From the view point of the storage stability of washing composition, dispersion agent (E) is preferably more than 0.1 with the weight ratio (dispersion agent (E)/nonionogenic tenside (C)) of nonionogenic tenside (C), is more preferably more than 0.4.From the view point of the storage stability of washing composition, dispersion agent (E) is preferably less than 4.0 with the weight ratio (dispersion agent (E)/nonionogenic tenside (C)) of nonionogenic tenside (C), is more preferably less than 2.0, more preferably less than 1.5.

< water (F) >

In present embodiment, water (F) can use process water, tap water and deionized water etc.The use level of water (F) can be the remainder of the total amount of alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), dispersion agent (E) and other compositions, from the view point of the storage stability of detergent composition, be preferably more than 45 % by weight, be more preferably more than 50 % by weight.The use level of water (F) can be the remainder of total amount of alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), dispersion agent (E), from the view point of the storage stability of detergent composition, be preferably less than 70 % by weight, be more preferably less than 65 % by weight, more preferably less than 60 % by weight, be further preferably less than 55 % by weight.

Other compositions of < >

Steel plate alkalis composition contains beyond alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), dispersion agent (E) and water (F), can also contain other compositions such as defoamer (G).

From the view point of the storage stability of detergent composition, as defoamer (G), the primary alconol of preferred use carbon number more than 8, more preferably uses carbon number more than 10 and the primary alconol of less than 22, more preferably uses carbon number more than 12 further and the primary alconol of less than 20.Specifically, decyl alcohol, lauryl alcohol, tridecyl alcohol, tetradecyl alcohol, palmityl alcohol, stearyl alcohol and isooctadecanol etc. can be used.

From the view point of the storage stability improving detergent composition further, the use level of defoamer (G) is preferably more than 0.1 % by weight, is more preferably more than 0.3 % by weight.From the view point of the storage stability of detergent composition, the use level of defoamer (G) is preferably less than 1 % by weight, is more preferably less than 0.7 % by weight.The use level of defoamer (G) is equivalent to the content of the defoamer in described operation (1).

In described operation (1), preferably mix sequestrant (B) and water (F), prepare the sequestrant aqueous solution.Then, in the sequestrant aqueous solution, preferably add nonionic surfactant (C), pulping agent (D), dispersion agent (E) and defoamer as required (G) and mix.And, also preferably in their mixed solution, add alkaline agent (A).

< is about operation (2) >

In described operation (2), as whipping appts, the whipping appts with stirring rake that shearing force is low can be used.From the view point of the storage stability of detergent composition, the circumferential speed of the rotation of stirring rake is preferably more than 0.45m/s, is more preferably more than 0.48m/s, more preferably more than 0.52m/s, be further preferably more than 0.75m/s.Reduce from the view point of the storage stability being involved in caused washing composition prevented because of bubble, the circumferential speed of the rotation of stirring rake be preferably below 1.20m/s, be more preferably below 1.10m/s, more preferably below 0.90m/s.In addition, from the view point of detergent composition storage stability, current consumption when stirring rake is rotated is preferably more than 3.5kw/kg, is more preferably more than 6.0kw/kg, more preferably more than 6.5kw/kg, and, reduce from the view point of the storage stability being involved in caused washing composition prevented because of bubble, be preferably below 20kw/kg, be more preferably below 18kw/kg, more preferably below 17kw/kg.

The kind of stirring rake is not particularly limited, and can use the stirring rake that such as oar blade type oar, propeller type oar, anchor oar etc. are known in the art.From the view point of disperseing equably, the preferred oar blade type oar of stirring rake.The number of oar can suitably be selected.In addition, in order to improve stirring shearing force, baffle plate can be set in steel basin.

In described operation (2), from the view point of the storage stability of detergent composition, churning time be preferably more than 30 minutes, be more preferably more than 60 minutes, more preferably more than 100 minutes.From the view point of the production efficiency of detergent composition, churning time be preferably less than 300 minutes, be more preferably less than 200 minutes, more preferably less than 150 minutes.

In described operation (2), the temperature of steel plate alkalis composition during stirring is not particularly limited, and such as, can be room temperature.Specifically, from the view point of the storage stability of detergent composition, the temperature of steel plate alkalis composition during stirring is preferably more than 5 DEG C, is more preferably more than 10 DEG C, more preferably more than 20 DEG C.In addition, from the view point of the storage stability of detergent composition, the temperature of steel plate alkalis composition during stirring is preferably less than 50 DEG C.Coordinate time alkaline agent (A) and produce temperature rising due to neutralization heat, but preferably control below described temperature.

The steel plate alkalis composition obtained in described operation (2) be comprise water mutually in be dispersed with the dispersion of particle diameter lower than the oil droplet of 50 μm.From the view point of the storage stability of detergent composition, the particle diameter of this oil droplet is preferably less than 45 μm, be more preferably less than 40 μm, more preferably less than 35 μm, be further preferably less than 30 μm, further preferably less than 25 μm.In addition, from the view point of the production efficiency of steel plate with alkalis composition, the particle diameter of this oil droplet is preferably more than 10 μm, is more preferably more than 12 μm.

In present embodiment, preferably also there is following operation: more than 10 DEG C and less than 50 DEG C described steel plate alkalis composition is preserved the operation (3) of more than 7 days; And water is mixed with the steel plate alkalis composition after described preservation, obtain for steel plate washing, the operation (4) of water-reducible washings (hereinafter also referred to as the second steel plate alkalis composition).From the view point of the detergency of steel plate, dilution ratio is preferably 12 ~ 40 times, is more preferably 15 ~ 30 times.

In described operation (3), from the view point of storage stability, the storage temperature of described steel plate alkalis composition is preferably more than 10 DEG C, is more preferably more than 20 DEG C.In addition, from the view point of storage stability, the storage temperature of the steel plate alkalis composition obtained in the manufacture method of present embodiment is preferably less than 50 DEG C, is more preferably less than 40 DEG C.

In addition, the excellent storage stability of described steel plate alkalis composition, therefore preferred when preservation more than 7 days in described operation (3), when preservation more than 30 days more preferably.In order to suppress the sedimentation of alkaline agent (A), preferably stir in preservation.Stirring can be carried out discontinuously or continuously in preservation, or carries out before use.In addition, from the view point of storage stability, be preferably the preservation of less than 300 days, be more preferably the preservation of less than 200 days, be more preferably the preservation of less than 150 days.

From the view point of the detergency of steel plate, the content of the alkaline agent (A) of the second steel plate alkalis composition obtained in described operation (4) is preferably more than 0.1 % by weight, is more preferably more than 0.5 % by weight.In addition, from the view point of the detergency of steel plate, the content of the alkaline agent (A) of the second steel plate alkalis composition obtained in described operation (4) is preferably less than 20 % by weight, is more preferably less than 10 % by weight, more preferably less than 8 % by weight.

Have steel plate carried out under the existence of rolling oil cold rolling cold rolling process and by washing composition in the described washing procedure in the manufacture method of the cold-rolled steel sheet of washing procedure that the rolling oil be attached on the steel plate of rolling washs, in described operation (4), the second steel plate alkalis composition of acquisition can use as alkalis.In described washing procedure, even if when the second steel plate is used as alkalis with alkalis composition, in addition, by method same as the prior art, cold-rolled steel sheet can be manufactured.

Described cold rolling process under the existence of rolling oil, carries out cold rolling processing treatment operation to steel plate in iron work etc.In described washing procedure, by continuous washing, namely flood washing, jet cleaning, brush washing, electrolytic scrubbing etc., use the second steel plate alkalis composition, rolling oil wash is removed.Particularly when washing procedure be dipping washing and electrolytic scrubbing and steel plate after utilizing roller to make rolling in alkali steeping rinse bath and alkali electrolytic scrubbing groove passes through, the second steel plate alkalis composition can be suitable for use as alkalis.

The the second steel plate alkalis composition obtained in the manufacture method of present embodiment can the wash temperature in described washing procedure be use as alkalis under the condition of 40 ~ 80 DEG C, even if at low temperatures, soaking into the balance of emulsification of washing composition is also good, to be attached to steel plate dirt detergency also good and also press down bubble property also good, can suppress to flood the slip on the roller in electrolytic scrubbing.

For above-mentioned embodiment, the invention also discloses following manufacture method, composition or purposes.

<1> steel plate manufacture method of alkalis composition, it has following operation:

The composition comprising alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), dispersion agent (E) and water (F) is imported to the operation (1) had in the steel basin of stirring rake; And

Described stirring rake is rotated and the operation (2) that mixed by each composition,

Wherein, the ratio of the described composition imported in described steel basin in described operation (1) is:

Alkaline agent (A) is more than 34 % by weight, is preferably more than 35 % by weight, is more preferably more than 37 % by weight and alkaline agent (A) is less than 45 % by weight, is preferably less than 42 % by weight, is more preferably less than 40 % by weight,

Sequestrant (B) is more than 0.5 % by weight, be preferably more than 1 % by weight, be more preferably more than 3 % by weight, more preferably more than 5 % by weight, be further preferably more than 6 % by weight and sequestrant (B) is less than 12 % by weight, is preferably less than 10 % by weight, is preferably less than 8 % by weight

Nonionic surfactant (C) is more than 0.1 % by weight, be preferably more than 0.5 % by weight, be more preferably more than 0.8 % by weight and nonionic surfactant (C) is less than 8 % by weight, is preferably less than 5 % by weight, is more preferably less than 3 % by weight

Pulping agent (D) is more than 0.4 % by weight, be preferably more than 1 % by weight, be more preferably more than 1.2 % by weight and pulping agent (D) is less than 4.5 % by weight, is preferably less than 3 % by weight, is more preferably less than 2 % by weight,

Dispersion agent (E) is more than 0.05 % by weight, be preferably more than 0.1 % by weight, be more preferably more than 0.3 % by weight, more preferably more than 0.4 % by weight and dispersion agent (E) be less than 2.0 % by weight, be preferably less than 1.8 % by weight, more preferably less than 1.5 % by weight, be further preferably less than 1.0 % by weight

Described dispersion agent (E) for being selected from more than a kind in the compound shown in following general formula (1) ~ (5),

(in described general formula (1), R ¹for carbon number more than 1 and the alkyl of less than 4, preferably less than 3, R ²for hydrogen atom or carbon number more than 1 and the alkyl of less than 3, preferably less than 2, R ³for hydrogen atom or methyl, be preferably hydrogen atom.〕

R ⁴-O-(A ¹O) _m-H (2)

(in described general formula (2), R ⁴for carbon number more than 1, preferably more than 2, more preferably more than 3 and be less than 6, the alkyl of preferably less than 5, more preferably less than 4, A ¹o is the alkylene oxide group of carbon number 2 or 3, and m is with A ¹the average addition molar basis of O is more than 0, preferably more than 1 and is less than 3, preferably less than 2, (A ¹o) total carbon number of m is more than 0, preferably more than 2 and is less than 6, preferably less than 4.〕

(in described general formula (4), R ⁶for hydrogen atom or methyl.〕

A ²o be carbon number 2 or 3, preferably 2 alkylene oxide group, n1, n2, n3 and n4 separately for represent A ²the integer of the addition mole number of O, the mean value of the total of n1, n2, n3 and n4 is more than 0.5, be preferably more than 1.0, be more preferably more than 1.5 and be less than 8, be preferably less than 5.0, be more preferably less than 3.5, more preferably less than 2.5.〕

Described steel plate alkalis composition for comprise water (F) mutually in be dispersed with the dispersion that particle diameter is less than the oil droplet of the described nonionic surfactant (C) of 50 μm.

The manufacture method of the steel plate alkalis composition of <2> according to above-mentioned <1>, wherein, in described operation (2), make described stirring rake with preferred more than 3.5kw/kg, more preferably more than 6.0kw/kg and preferably below 20kw/kg, more preferably below 18kw/kg, preferably the current consumption of below 17kw/kg carries out rotating and being mixed by each composition further.

The manufacture method of the steel plate alkalis composition of <3> according to above-mentioned <1> or <2>, wherein, described nonionic surfactant (C) is for being selected from more than a kind in the compound shown in following general formula (7) and (8).

R ⁸-O-(A ³O) ₀-H (7)

(in described general formula (7), R ⁸the alkyl be preferably carbon number more than 8, being preferably less than 18, being more preferably less than 14, more preferably less than 12, A ³o is preferably the alkylene oxide group of carbon number more than 2 and less than 4, and o is with A ³the average addition molar basis of O is preferably more than 2, is more preferably more than 4, is preferably less than 20, is more preferably less than 16.〕

(in described general formula (8), R ⁹for carbon number is preferably more than 8, is more preferably the alkyl of more than 12, more preferably more than 16, preferably less than 18, A ⁴o is preferably carbon number more than 2 and the alkylene oxide group of less than 4, be more preferably ethyleneoxy group, p and q represents A respectively ⁴the average addition mole number of O, p+q is preferably more than 2, be more preferably more than 5, more preferably more than 8, be preferably less than 20, be more preferably less than 12.〕

The manufacture method of the steel plate alkalis composition of <4> according to any one of above-mentioned <1> ~ <3>, wherein, described pulping agent (D) is water-soluble polymer carboxylic acid.

The manufacture method of the steel plate alkalis composition of <5> according to any one of above-mentioned <1> ~ <4>, wherein, weight ratio, the i.e. pulping agent (D)/nonionogenic tenside (C) of described pulping agent (D) and described nonionogenic tenside (C) be preferably more than 0.1, be more preferably more than 1, be preferably less than 50, be more preferably less than 15, more preferably less than 5, be further preferably less than 2.

The manufacture method of the steel plate alkalis composition of <6> according to any one of above-mentioned <1> ~ <5>, wherein, the ratio of described water (F) be preferably more than 45 % by weight, be more preferably more than 50 % by weight, be preferably less than 70 % by weight, be more preferably less than 65 % by weight, more preferably less than 60 % by weight, be further preferably less than 55 % by weight.

The manufacture method of the steel plate alkalis composition of <7> according to any one of above-mentioned <1> ~ <6>, wherein,

Described dispersion agent (E) for being selected from more than a kind in following compound,

(1 ') methyl alcohol, ethanol, n-propyl alcohol, Virahol, propyl carbinol, isopropylcarbinol, sec-butyl alcohol, the trimethyl carbinol, Pentyl alcohol and n-hexyl alcohol, ethylene glycol monomethyl ether, triethylene glycol monomethyl ether, ethyleneglycol monopropylether, Diethylene Glycol list isopropyl ether, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, triethylene glycol butyl ether, ethylene glycol list ethyl isobutyl ether, Diethylene Glycol list ethyl isobutyl ether, triethylene glycol list ethyl isobutyl ether, ethylene glycol ether, propylene glycol monomethyl ether, dipropylene glycol monomethyl ether, ethylene glycol monoallyl ether,

(2 ') ethylene glycol, propylene glycol, butyleneglycol,

(3 ') N-Mono Methyl Ethanol Amine, N-ehtylethanolamine, N-n-butylethanolamine, N-isobutyl-thanomin, N-tertiary butyl thanomin, N-methyl isopropyl hydramine, N, N-dimethylethanolamine, N, N-diethylethanolamine, N, N-methylethyl thanomin, N, N-dimethylisopro panolamine,

(4 ') N-(beta-amino ether) thanomin and N-(beta-amino ether) α-amino isopropyl alcohol,

(5 ') make to be selected from more than a kind in glycerine and Glycerol dimer compound, with oxyethane and/or propylene oxide addition and the compound that obtains.

The manufacture method of the steel plate alkalis composition of <8> according to any one of above-mentioned <1> ~ <7>, wherein, dispersion agent (E) and the weight ratio (dispersion agent (E)/nonionogenic tenside (C)) of nonionogenic tenside (C) are preferably more than 0.1, are more preferably more than 0.4, are preferably less than 4.0, are more preferably less than 2.0, more preferably less than 1.5.

The manufacture method of the steel plate alkalis composition of <9> according to any one of above-mentioned <1> ~ <8>, wherein, the weight-average molecular weight (MW) of pulping agent (D) is preferably 1,000 ~ 100,000, is more preferably 3,000 ~ 50,000, more preferably 5,000 ~ 20,000, further 5 are preferably, 000 ~ 10,000.

The manufacture method of the steel plate alkalis composition of <10> according to any one of above-mentioned <1> ~ <9>, it also contains the primary alconol of carbon number more than 8 as defoamer (G).

The manufacture method of the steel plate alkalis composition of <11> according to above-mentioned <10>, wherein, the use level of defoamer (G) is preferably more than 0.1 % by weight, is more preferably more than 0.3 % by weight, is preferably less than 1 % by weight, is more preferably less than 0.7 % by weight.

<12> steel plate manufacture method of alkalis composition, it also has following operation:

By the steel plate alkalis composition that obtains in the manufacture method according to any one of described <1> ~ <11> more than 10 DEG C and less than 50 DEG C preserve more than 7 days operation (3) and

Water is mixed with the steel plate alkalis composition after described preservation, obtains the operation (4) of water-reducible second steel plate alkalis composition.

The manufacture method of the steel plate alkalis composition of <13> according to any one of above-mentioned <1> ~ <12>, wherein, in described operation (2), described stirring rake is made to rotate with more than circumferential speed 0.45m/s and be mixed by each composition.

The manufacture method of the steel plate alkalis composition of <14> according to any one of above-mentioned <1> ~ <13>, wherein, in described operation (2), make described stirring rake with more than circumferential speed 0.45m/s, be preferably more than 0.48m/s, be more preferably more than 0.52m/s, more preferably more than 0.75m/s, be preferably below 1.20m/s, be more preferably below 1.10m/s, more preferably below 0.90m/s carries out rotating and being mixed by each composition, the time of this mixing is more than 30 minutes, be preferably more than 60 minutes, be more preferably more than 100 minutes, and be less than 300 minutes, be preferably less than 200 minutes, be more preferably less than 150 minutes.

<15> steel plate alkalis composition, it is the steel plate alkalis composition containing alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), dispersion agent (E) and water (F), wherein, the ratio of described each composition is:

Alkaline agent (A) is more than 34 % by weight, be preferably more than 35 % by weight, be more preferably more than 37 % by weight and alkaline agent (A) is less than 45 % by weight, is preferably less than 42 % by weight, is more preferably less than 40 % by weight,

Sequestrant (B) is more than 0.5 % by weight, be preferably more than 1 % by weight, be more preferably more than 3 % by weight, more preferably more than 5 % by weight, be further preferably more than 6 % by weight and sequestrant (B) is less than 12 % by weight, is preferably less than 10 % by weight, is more preferably less than 8 % by weight

Nonionic surfactant (C) is more than 0.1 % by weight, be more preferably more than 0.5 % by weight, more preferably more than 0.8 % by weight and nonionic surfactant (C) is less than 8 % by weight, is more preferably less than 5 % by weight, more preferably less than 3 % by weight

R ⁴-O-(A ¹O) _m-H (2)

(in described general formula (2), R ⁴for carbon number more than 1, preferably more than 2, be more preferably more than 3 and the alkyl being less than 6, being preferably less than 5, being more preferably less than 4, A ¹o is the alkylene oxide group of carbon number 2 or 3, and m is with A ¹the average addition molar basis of O is more than 0, preferably more than 1 and is less than 3, preferably less than 2, (A ¹o) total carbon number of m is more than 0, preferably more than 2 and is less than 6, preferably less than 4.〕

(in described general formula (4), R ⁶for hydrogen atom or methyl.〕

A ²o be carbon number 2 or 3, preferably 2 alkylene oxide group, n1, n2, n3 and n4 be respectively represent A ²the integer of the addition mole number of O, the mean value of the total of n1, n2, n3 and n4 is more than 0.5, be preferably more than 1.0, be more preferably more than 1.5 and be less than 8, be preferably less than 5.0, be more preferably less than 3.5, more preferably less than 2.5.〕

The steel plate alkalis composition of <16> according to above-mentioned <15>, wherein, described nonionic surfactant (C) is for being selected from more than a kind in the compound shown in following general formula (7) and (8).

R ⁸-O-(A ³O) ₀-H (7)

(in described general formula (7), R ⁸for the alkyl that carbon number is preferably more than 8, is preferably less than 18, is more preferably less than 14, more preferably less than 12, A ³o is preferably the alkylene oxide group of carbon number more than 2 and less than 4, and o is with A ³the average addition molar basis of O is preferably more than 2, is more preferably more than 4, is preferably less than 20, is more preferably less than 16.〕

(in described general formula (8), R ⁹for carbon number be preferably more than 8, be more preferably more than 12, more preferably more than 16 and be preferably less than 18 alkyl, A ⁴o is preferably carbon number more than 2 and the alkylene oxide group of less than 4, be more preferably ethyleneoxy group, p and q represents A respectively ⁴the average addition mole number of O, p+q is preferably more than 2, be more preferably more than 5, more preferably more than 8, be preferably less than 20, be more preferably less than 12.〕

The steel plate alkalis composition of <17> according to above-mentioned <15> or <16>, wherein, described pulping agent (D) is water-soluble polymer carboxylic acid.

The steel plate alkalis composition of <18> according to any one of above-mentioned <14> ~ <17>, wherein, the weight ratio of described pulping agent (D) and described nonionogenic tenside (C), pulping agent (D)/nonionogenic tenside (C) be preferably more than 0.1, be more preferably more than 1, be preferably less than 50, be more preferably less than 15, more preferably less than 5, be further preferably less than 2.

The steel plate alkalis composition of <19> according to any one of above-mentioned <15> ~ <18>, wherein, the ratio of described water (F) be preferably more than 45 % by weight, be more preferably more than 50 % by weight, be preferably less than 70 % by weight, be more preferably less than 65 % by weight, more preferably less than 60 % by weight, be further preferably less than 55 % by weight.

The steel plate alkalis composition of <20> according to any one of above-mentioned <15> ~ <19>, wherein, described dispersion agent (E) is for being selected from more than a kind in following compound

(2 ') ethylene glycol, propylene glycol, butyleneglycol,

The steel plate alkalis composition of <21> according to any one of above-mentioned <15> ~ <20>, wherein, dispersion agent (E) and the weight ratio (dispersion agent (E)/nonionogenic tenside (C)) of nonionogenic tenside (C) are preferably more than 0.1, are more preferably more than 0.4, are preferably less than 4.0, are more preferably less than 2.0, more preferably less than 1.5.

The steel plate alkalis composition of <22> according to any one of above-mentioned <15> ~ <21>, wherein, the weight-average molecular weight (MW) of pulping agent (D) is preferably 1,000 ~ 100,000, is more preferably 3,000 ~ 50,000, more preferably 5,000 ~ 20,000, further 5 are preferably, 000 ~ 10,000.

The steel plate alkalis composition of <23> according to any one of above-mentioned <15> ~ <22>, it also contains the primary alconol of carbon number more than 8 as defoamer (G).

The steel plate alkalis composition of <24> according to above-mentioned <23>, wherein, the content of defoamer (G) is preferably more than 0.1 % by weight, is more preferably more than 0.3 % by weight, is preferably less than 1 % by weight, is more preferably less than 0.7 % by weight.

Steel plate alkalis composition according to any one of the above-mentioned <15> ~ <24> of <25> is as the application of the washing composition of steel plate.

Embodiment

Below, in further detail the present invention is described by embodiment, but the present invention is not by any restriction of these embodiments.

The < steel plate preparation > of alkalis composition

< embodiment 1>

Operation (1): add the Sunmorl N 60S 60.0g (10.0 % by weight) as sequestrant and water 88.6g (14.8 % by weight) in the glass beaker (internal diameter 80.5mm) of capacity 500ml, prepare the sequestrant aqueous solution.Then, using the secondary ether (lauryl of polyoxyethylene (addition 10 moles) polyoxypropylene (addition 2 moles) alkyl as nonionic surfactant, the mixture of myristyl) 3.0g (0.5 % by weight), as the different tridecyl alcohol 3.0g (0.5 % by weight) of defoamer, as the ehtylethanolamine 2.4g (0.4 % by weight) of dispersion agent, sodium polyacrylate (solids component 42%) 18.0g (with solid component meter 1.26 % by weight) as pulping agent is uniformly mixed, add the 48% sodium hydroxide 425.0g (in NaOH 34.0 % by weight) as alkaline agent further, obtain mixture.

Operation (2): this mixture utilized the whipping appts with stirring rake (4 pitch blade, diameter: 80mm, oar height in the position of the 200ml of beaker) and stirs 40 minutes with the speed of 530rpm, obtaining steel plate alkalis composition.In addition, circumferential speed is 0.71m/s.

< embodiment 2 ~ 55, embodiment 2-1 ~ 2-12, comparative example 1 ~ 32, comparative example 2-1 ~ 2-5>

Except using the composition shown in table 1 ~ 7 and amount thereof, the method identical with embodiment 1 is utilized to be prepared.The unit of the use level described in table 1 ~ 7 is % by weight.

< is about raw material >

Table 1 ~ 7 and each composition described in table 8 (aftermentioned) use following material.

A) alkaline agent

Sodium hydroxide

B) sequestrant

Sunmorl N 60S

C) nonionogenic tenside

Polyoxyethylene (addition 8 moles) polyoxypropylene (addition 4 moles) ether in the last of the ten Heavenly stems (material manufactured in the Production Example 1 of following nonionogenic tenside)

The secondary ether (utilizing the material that the method identical with the Production Example 1 of following nonionogenic tenside manufactures) of polyoxyethylene (addition 10 moles) polyoxypropylene (addition 2 moles) lauryl myristyl

Polyoxyethylene (addition 4 moles) 2-ethyl hexyl ether: the Japanese emulsifying agent of NuCoal 1004 (strain) is made

Secondary ether: Softanol 12030 (strain) the Japanese catalyst system of polyoxyethylene (addition 12 moles) polyoxypropylene (addition 3 moles) lauryl myristyl

Polyoxyethylene (addition 13 moles) stearyl ether: EMULGEN 320P flower king (strain) system

Polyoxyethylene (addition 9 moles) stearylamine: blue or green wooden oil prodution industry (strain) system of BLAUNON L210

D) pulping agent

Sodium polyacrylate: weight-average molecular weight 6000

E) dispersion agent

Ehtylethanolamine: Japanese emulsifying agent (strain) is made

Glycerine A (material manufactured in the Production Example 1 of following dispersion agent)

Glycerine B (material manufactured in the Production Example 2 of following dispersion agent)

Glycerine C (material manufactured in the Production Example 3 of following dispersion agent)

Glycerine D (material manufactured in the Production Example 4 of following dispersion agent)

Glycerine E (material manufactured in the Production Example 5 of following dispersion agent)

Glycerine F (material manufactured in the Production Example 6 of following dispersion agent)

Glycerine G (material manufactured in the Production Example 7 of following dispersion agent)

Glycerine H (material manufactured in the Production Example 8 of following dispersion agent)

Glycerine I (material manufactured in the Production Example 9 of following dispersion agent)

Glycerine J:Glycerin flower king (strain) system

Glycerine K (material manufactured in the Production Example 10 of following dispersion agent)

Glycerine L (material manufactured in the Production Example 11 of following dispersion agent)

Glycerine M (material manufactured in the Production Example 12 of following dispersion agent)

Glycerine N (material manufactured in the Production Example 13 of following dispersion agent)

Glycerol dimer A (material manufactured in the Production Example 14 of following dispersion agent)

Glycerol dimer B (material manufactured in the Production Example 15 of following dispersion agent)

Glycerol dimer C (material manufactured in the Production Example 16 of following dispersion agent)

G) defoamer

Different tridecyl alcohol: Tridecanol, consonance fermentation chemistry (strain) system

Isooctadecanol: Fine oxocol 180, Nissan Chemical Industries (strain) are made

The Production Example 1> of < nonionogenic tenside

Nonylcarbinol 158.2g (1 mole) and KOH (catalyzer) 0.30g (0.4 % by weight) is added in autoclave, after the air in nitrogen replacement autoclave, stir nonylcarbinol, simultaneously by the temperature to 130 in autoclave DEG C.At 3.5kg/cm ²pressure (gauge pressure) under oxyethane 352g (8 moles) is imported in autoclave, make nonylcarbinol and reacting ethylene oxide until described pressure reduces and keeps constant, then make the temperature in autoclave be reduced to 120 DEG C.Then, at 3.5kg/cm ²pressure (gauge pressure) under propylene oxide 232g (4 moles) is imported in autoclave.Make propylene oxide reaction until described pressure reduces and keeps constant, then make the temperature in autoclave be reduced to room temperature, obtain about 740g polyoxyethylene (addition 8 moles) polyoxypropylene (addition 4 moles) ether in the last of the ten Heavenly stems.

The Production Example 1> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add propylene oxide 58.1g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted propylene oxide in 30 minutes removing autoclaves under 4.0kPa.After unreacted propylene oxide removing, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the PO affixture (glycerine A) that average addition mole number is the glycerine of 1 mole at 80 DEG C.

The Production Example 2> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add propylene oxide 116.2g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted propylene oxide in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted propylene oxide, acetic acid 3.0g is added in autoclave, keep, after 30 minutes, extracting out, obtaining the PO affixture (glycerine B) that average addition mole number is the glycerine of 2 moles at 80 DEG C.

The Production Example 3> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add propylene oxide 174.2g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, at the unreacted propylene oxide of 4.0kPa in 30 minutes removing autoclaves.After removing unreacted propylene oxide, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the PO affixture (glycerine C) that average addition mole number is the glycerine of 3 moles at 80 DEG C.

The Production Example 4> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add propylene oxide 406.6g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted propylene oxide in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted propylene oxide, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the PO affixture (glycerine D) that average addition mole number is the glycerine of 7 moles at 80 DEG C.

The Production Example 5> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add oxyethane 44.1g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted oxyethane in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted oxyethane, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the EO affixture (glycerine E) that average addition mole number is the glycerine of 1 mole at 80 DEG C.

The Production Example 6> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add oxyethane 88.1g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted oxyethane in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted oxyethane, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the EO affixture (glycerine F) that average addition mole number is the glycerine of 2 moles at 80 DEG C.

The Production Example 7> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add oxyethane 132.2g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted oxyethane in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted oxyethane, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the EO affixture (glycerine G) that average addition mole number is the glycerine of 3 moles at 80 DEG C.

The Production Example 8> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add oxyethane 176.2g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted oxyethane in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted oxyethane, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the EO affixture (glycerine H) that average addition mole number is the glycerine of 4 moles at 80 DEG C.

The Production Example 9> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add oxyethane 132.2g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted oxyethane in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted oxyethane, then add propylene oxide 58.1g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted propylene oxide in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted propylene oxide, add acetic acid 3.0g in autoclave, keep after 30 minutes, extract out at 80 DEG C, obtaining average addition mole number is EO 3 moles and the EOPO affixture (glycerine I) of the glycerine of PO 1 mole.

The Production Example 10> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add propylene oxide 697.0g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted propylene oxide in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted propylene oxide, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the PO affixture (glycerine K) that average addition mole number is the glycerine of 12 moles at 80 DEG C.

The Production Example 11> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add propylene oxide 1394g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted propylene oxide in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted propylene oxide, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the PO affixture (glycerine L) that average addition mole number is the glycerine of 24 moles at 80 DEG C.

The Production Example 12> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add oxyethane 396.5g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted oxyethane in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted oxyethane, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the EO affixture (glycerine M) that average addition mole number is the glycerine of 9 moles at 80 DEG C.

The Production Example 13> of < dispersion agent

In autoclave, add glycerine 92.1g and KOH1.4g (1.5 % by weight), 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add oxyethane 88.1g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted oxyethane in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted oxyethane, then add propylene oxide 581.0g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted propylene oxide in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted propylene oxide, add acetic acid 3.0g in autoclave, keep after 30 minutes, extract out at 80 DEG C, obtaining average addition mole number is EO 2 moles and the EOPO affixture (glycerine N) of the glycerine of PO10 mole.

The Production Example 14> of < dispersion agent

In autoclave, add Glycerol dimer 166.2g and KOH2.0g, 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add oxyethane 176.2g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted oxyethane in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted oxyethane, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the EO affixture (Glycerol dimer A) that average addition mole number is the Glycerol dimer of 4 moles at 80 DEG C.

The Production Example 15> of < dispersion agent

In autoclave, add Glycerol dimer 166.2g and KOH2.0g, 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add propylene oxide 116.2g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted propylene oxide in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted propylene oxide, in autoclave, add acetic acid 3.0g, keep, after 30 minutes, extracting out, obtaining the PO affixture (Glycerol dimer B) that average addition mole number is the Glycerol dimer of 2 moles at 80 DEG C.

The Production Example 16> of < dispersion agent

In autoclave, add Glycerol dimer 166.2g and KOH2.0g, 110 DEG C, carry out dehydration in 30 minutes under 1.3kPa.After dehydration, with the air in nitrogen replacement autoclave, by after the temperature to 130 in autoclave DEG C, add oxyethane 88.1g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted oxyethane in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted oxyethane, then add propylene oxide 116.2g.Carry out at 130 DEG C addition reaction aging after, be cooled to 80 DEG C, with the unreacted propylene oxide in 30 minutes removing autoclaves under 4.0kPa.After removing unreacted propylene oxide, add acetic acid 3.0g in autoclave, keep after 30 minutes, extract out at 80 DEG C, obtaining average addition mole number is EO 2 moles and the EOPO affixture (Glycerol dimer C) of the Glycerol dimer of PO 2 moles.

< evaluation method >

< weight-average molecular weight >

According to gel permeation chromatography, convert with normal polyethylene and measure weight-average molecular weight.

[condition determination]

TOSOH Co., Ltd gel filtration chromatography SC-8020 series overlapping system

Chromatographic column: G2000HXL+G4000HXL

Detector: UV220nm

Carrier: tetrahydrofuran (THF) 1mL/ minute

Column temperature: 38 DEG C

The particle diameter > of < oil droplet

Be dropped on slide glass by described each steel plate alkalis composition with about 0.03ml (instilling 1 with pasteur pipet), use opticmicroscope (NIKON Inc.), shooting ratio of enlargement is the photo of 200 times.In the middle of oil droplet in photo, measure the diameter of the maximum oil droplet of particle diameter with ruler, and it can be used as maximum particle diameter.If maximum particle diameter is less than 50 μm, then excellent storage stability.In table 1 ~ 7 by observe be separated or separate out and the situation of undetermined particle diameter be designated as "-".

< state >

Described each steel plate alkalis composition is put into the transparent polypropylene vial of capacity 500ml, preserve 24 hours under room temperature (20 DEG C ~ 25 DEG C), the outward appearance of visual observation each steel plate alkalis composition.And, have rated the presence or absence of upper strata separation, thickening, solidification etc.Using the situation of no abnormality seen as " OK ", when noting abnormalities, its state (separation, bubble, precipitation etc.) is recorded in table 1 ~ 7.

< current consumption >

The socket of the engine of stirrer is made to be connected with rheoscope and to measure.Current consumption (kw/kg) is calculated by the virtual voltage demonstrated by rheoscope (V) × watt current (A) × power factor (P.F.).

Table 1 ~ 7 illustrate described evaluation result.The weight ratio that the content (% by weight) of each composition in the numeric representation washing composition in table, D/C weight ratio represent the weight ratio of the content of pulping agent (D)/nonionogenic tenside (C), E/C weight ratio represents dispersion agent (E) and the content of nonionogenic tenside (C).

[table 1]

[table 2]

[table 3]

[table 4]

[table 5]

[table 6]

[table 7]

< embodiment 56 ~ 59, comparative example 33 ~ 35>

With regard to the preparation of mixture, except using the composition shown in table 8 and amount thereof, carry out identically with embodiment 1.The unit of the use level described in table 7 is % by weight.This mixture is stirred with under the agitation condition of the whipping appts with stirring rake (4 pitch blade, diameter: 80mm, oar height in the position of the 200ml of beaker) described in table 7, obtains steel plate alkalis composition.

< embodiment 60>

Operation (1): using the glass tall form beaker (internal diameter 92.6mm) putting into capacity 1000ml as the Sunmorl N 60S 50.4g (6.3 % by weight) of sequestrant and water 78.7g (9.8 % by weight), prepare the sequestrant aqueous solution.Then, using secondary ether 8.0g (1.0 % by weight) of polyoxyethylene (addition 10 moles) polyoxypropylene (addition 2 moles) lauryl myristyl as nonionic surfactant, as the different tridecyl alcohol 4.0g (0.5 % by weight) of defoamer, as the ehtylethanolamine 3.2g (0.4 % by weight) of dispersion agent, sodium polyacrylate (solids component 42%) 24.0g (with solid component meter 1.26 % by weight) as pulping agent is uniformly mixed, add the 48% sodium hydroxide 631.7g (in NaOH 37.9 % by weight) as alkaline agent further, obtain mixture.

Operation (2): this mixture whipping appts with stirring rake (4 pitch blade, diameter: 80mm, oar height in the position of the 300ml of beaker) is stirred 120 minutes with the speed of 630rpm, obtains steel plate alkalis composition.In addition, circumferential speed is 0.84m/s.

< comparative example 36>

Except using the composition shown in table 8 and amount thereof, the method identical with embodiment 60 is utilized to be prepared.

< embodiment 61>

Operation (1): add the Sunmorl N 60S 126.0g (6.3 % by weight) as sequestrant and water 196.8g (9.8 % by weight) in the glass beaker (internal diameter 130mm) of capacity 2000ml, prepare the sequestrant aqueous solution.Then, using secondary ether 20.0g (1.0 % by weight) of polyoxyethylene (addition 10 moles) polyoxypropylene (addition 2 moles) lauryl myristyl as nonionic surfactant, as the different tridecyl alcohol 10.0g (0.5 % by weight) of defoamer, as the ehtylethanolamine 8.0g (0.4 % by weight) of dispersion agent, sodium polyacrylate (solids component 42%) 60.0g (with solid component meter 1.26 % by weight) as pulping agent is uniformly mixed, add the 48% sodium hydroxide 1579.2g (in NaOH 37.9 % by weight) as alkaline agent further, obtain mixture.

Operation (2): by this mixture whipping appts with stirring rake (4 pitch blade, diameter: 80mm, oar height in the position of the 750ml of beaker), stir 120 minutes with the speed of 770rpm, obtain steel plate alkalis composition.In addition, circumferential speed is 1.03m/s.

< comparative example 37>

Except using the composition shown in table 8 and amount thereof, the method identical with embodiment 61 is used to be prepared.

< reference example 1>

Using the glass beaker putting into capacity 2000ml as the Sunmorl N 60S 126.0g (6.3 % by weight) of sequestrant and water 196.8g (9.8 % by weight), prepare the sequestrant aqueous solution.Then, be uniformly mixed sodium polyacrylate (solids component 42%) 60.0g (with solid component meter 1.26 % by weight) as pulping agent, add the 48% sodium hydroxide 1579.2g (in NaOH 37.9 % by weight) as alkaline agent further, and secondary ether 20.0g (1.0 % by weight) of polyoxyethylene (addition 10 moles) polyoxypropylene (addition 2 moles) lauryl myristyl added as nonionic surfactant, as the different tridecyl alcohol 10.0g (0.5 % by weight) of defoamer, as the ehtylethanolamine 8.0g (0.4 % by weight) of dispersion agent, high shear force (homomixer: 10000rpm) is utilized to carry out uniform stirring, obtain steel plate alkalis composition.

< reference example 2>

Except using the composition shown in table 8 and amount thereof, the method identical with reference example 1 is utilized to be prepared.

< evaluation method >

The particle diameter > of < oil droplet

The method identical with the mensuration of the particle diameter of the oil droplet of embodiment 1 is utilized to measure maximum particle diameter.If maximum particle diameter is less than 50 μm, then excellent storage stability.

< proportion >

Described steel plate alkalis composition is put into by the Gay-Lussac type specific gravity flask of JIS R 3503 defined, at 30 DEG C, utilizes the method for JIS K 0061 to measure proportion.With regard to steel plate with regard to alkalis composition, if be involved in bubble in the preparation, then storage stability tends to reduce.If be involved in bubble, then the steel plate proportion of alkalis composition reduces, and thus expects that proportion can not reduce.

Described evaluation result is shown in table 8.The weight ratio that the content (% by weight) of each composition in the numeric representation washing composition in table, D/C weight ratio represent the weight ratio of the content of pulping agent (D)/nonionogenic tenside (C), E/C weight ratio represents dispersion agent (E) and the content of nonionogenic tenside (C).

[table 8]

With regard to the steel plate of comparative example with regard to alkalis composition, if to stir time circumferential speed manufacture for 1.03m/s, then can obtain the particle diameter of target, but being involved in of bubble is more, proportion reduces, and cannot obtain stability.

On the other hand, with regard to the steel plate of embodiment with regard to alkalis composition, even if increase circumferential speed when stirring, also can suppress being involved in of bubble, produce stable steel plate alkalis composition.It should be noted that, compared with embodiment 60 and comparative example 36, with regard to embodiment 61 and comparative example 37, although circumferential speed is fast, current consumption diminishes.This is owing to producing whirlpool (vortex) by stirring, the cause that stirring rake exposes on liquid level.

The < second steel plate preparation > of alkalis composition

Operation 3: the steel plate of the embodiment 59 steel plate alkalis composition of alkalis composition and reference example 2 is preserved 30 days at 30 DEG C.

Operation 4: then, stirs the steel plate alkalis composition of embodiment 59 after preservation and the steel plate alkalis composition of reference example 2, is diluted with water to 25 times respectively further, prepares the second steel plate alkalis composition.

< steel plate washing test >

(1) alkalis

Use the second steel plate alkalis composition prepared by the steel plate alkalis composition of described embodiment 59 and the second steel plate alkalis composition prepared by the steel plate alkalis composition of described reference example 2 as alkalis respectively.

(2) by washing steel plate

All prepared according to following steps by washing steel plate.That is, by with carry out containing palmitic synthetic ester system rolling oil cold rolling after the steel plate of thick 0.4mm, cut into the size of 25mm × 50mm, using the steel plate after shearing as by washing steel plate.By washing steel plate attaching oil component be 160mg/m ².

(3) washing test order

Washing test is all carried out according to following steps.Namely, in the second alkalis composition (without dirt washings) of each example, in the equidistant and position at center of the pair of electrodes plate (interelectrode distance is 20mm) of the size with the vertical 100mm arranged respectively × horizontal 50mm, flood by washing steel plate 1 second, then, then with current density 5A/dm ²steel plate current potential is switched once from negative to positive respectively every 0.5 second, carry out electrolytic scrubbing, jet douche (by the water of 60 DEG C to spray pressure: 0.2MPa carries out injection in 1 second) is carried out with water, flooded for 1 second further in the water of 60 DEG C, rinse thus, then carry out warm air drying.It should be noted that, the temperature of test washing composition is set to 70 DEG C.

(4) residual attaching oil divides quantity measuring method

The attaching oil component (remaining attaching oil component) that surface of steel plate after using steel plate attaching oil amount determining device EMIA-111 (Ku Chang manufacturing company system) to be determined at washing test is residual.Measured value is 5 mean values measured.Residual attaching oil component is fewer, then represent that the detergency of steel plate is excellent.

Consequently, the residual attaching oil component using the second steel plate alkalis composition prepared by the steel plate alkalis composition of described embodiment 59 to carry out when washing is 15.7mg/m ², the residual attaching oil component using the second steel plate alkalis composition prepared by the steel plate alkalis composition of described reference example 2 to carry out when washing is 14.1mg/m ², similarly, both all have excellent detergency for steel plate.

Claims

1. a steel plate manufacture method for alkalis composition, it has following operation:

The composition of alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), dispersion agent (E) and water (F) will be comprised, import to the operation (1) had in the steel basin of stirring rake; And

Wherein,

The ratio importing to the described composition in described steel basin in described operation (1) is: alkaline agent (A) be more than 34 % by weight and less than 45 % by weight, sequestrant (B) be more than 0.5 % by weight and less than 12 % by weight, nonionic surfactant (C) be more than 0.1 % by weight and less than 8 % by weight, pulping agent (D) be more than 0.4 % by weight and less than 4.5 % by weight, dispersion agent (E) is more than 0.05 % by weight and less than 2.0 % by weight

Described dispersion agent (E) for being selected from the compound of more than a kind in the compound shown in following general formula (1) ~ (5),

In described general formula (1), R ¹for carbon number more than 1 and the alkyl of less than 4, R ²for hydrogen atom or carbon number more than 1 and the alkyl of less than 3, R ³for hydrogen atom or methyl,

R ⁴-O-(A ¹O) _m-H (2)

In described general formula (2), R ⁴for carbon number more than 1 and the alkyl of less than 6, A ¹o is the alkylene oxide group of carbon number 2 or 3, m is A ¹the average addition mole number of O and be more than 0 and less than 3, (A ¹o) total carbon number of m is more than 0 and less than 6,

In described general formula (3), R ⁵for the alkyl of hydrogen atom or carbon number 1 or 2,

In described general formula (4), R ⁶for hydrogen atom or methyl,

In described general formula (5), R ⁷for-(A ²o) _n3-H or the compound shown in following general formula (6),

A ²o is the alkylene oxide group of carbon number 2 or 3, and n1, n2, n3 and n4 are separately for representing A ²the integer of the addition mole number of O, the mean value of the total of n1, n2, n3 and n4 is more than 0.5 and less than 8,

2. the manufacture method of steel plate alkalis composition according to claim 1, wherein, in described operation (2), makes described stirring rake rotate with the current consumption of more than 3.5kw/kg and is mixed by each composition.

3. the manufacture method of steel plate alkalis composition according to claim 1 and 2, wherein, described nonionic surfactant (C) is for being selected from the compound of more than a kind in the compound shown in following general formula (7) and general formula (8)

R ⁸-O-(A ³O) _o-H (7)

In described general formula (7), R ⁸for carbon number more than 8 and the alkyl of less than 18, A ³o is carbon number more than 2 and the alkylene oxide group of less than 4, o are A ³the average addition mole number of O is also more than 2 and less than 20,

In described general formula (8), R ⁹for carbon number more than 8 and the alkyl of less than 18, A ⁴o is carbon number more than 2 and the alkylene oxide group of less than 4, p and q represent A separately ⁴the average addition mole number of O, p+q is more than 2 and less than 20.

4. the manufacture method of alkalis composition of the steel plate according to any one of claims 1 to 3, wherein, described pulping agent (D) is water-soluble polymer carboxylic acid.

5. the manufacture method of alkalis composition of the steel plate according to any one of Claims 1 to 4, wherein, weight ratio, the i.e. dispersion agent (E)/nonionogenic tenside (C) of described dispersion agent (E) and described nonionogenic tenside (C) are more than 0.1 and less than 4.0.

6. the manufacture method of alkalis composition of the steel plate according to any one of Claims 1 to 5, wherein, the ratio of described water (F) is more than 45 % by weight and less than 70 % by weight.

7. the manufacture method of alkalis composition of the steel plate according to any one of claim 1 ~ 6, wherein, in described operation (2), makes described stirring rake rotate with more than circumferential speed 0.45m/s and is mixed by each composition.

8. the manufacture method of alkalis composition of the steel plate according to any one of claim 1 ~ 7, wherein, in described operation (2), the time utilizing described stirring rake to carry out mixing is more than 30 minutes and less than 300 minutes.

9. the second steel plate manufacture method for alkalis composition, it also has following operation:

The steel plate alkalis composition utilizing the manufacture method according to any one of claim 1 ~ 8 to obtain is kept at more than 10 DEG C and the operation (3) of less than 50 DEG C; And

Jiang Shui and described steel plate alkalis composition mixing of being preserved, obtain the operation (4) of water-reducible 2nd steel plate alkalis composition.

10. a steel plate alkalis composition, it is the steel plate alkalis composition containing alkaline agent (A), sequestrant (B), nonionic surfactant (C), pulping agent (D), dispersion agent (E) and water (F), wherein

The ratio of described each composition is: alkaline agent (A) be more than 34 % by weight and less than 45 % by weight, sequestrant (B) be more than 0.5 % by weight and less than 12 % by weight, nonionic surfactant (C) be more than 0.1 % by weight and less than 8 % by weight, pulping agent (D) be more than 0.4 % by weight and less than 4.5 % by weight, dispersion agent (E) is more than 0.05 % by weight and less than 2.0 % by weight

R ⁴-O-(A ¹O) _m-H (2)

In described general formula (2), R ⁴for carbon number more than 1 and the alkyl of less than 6, A ¹o is the alkylene oxide group of carbon number 2 or 3, m is A ¹the average addition mole number of O and be more than 0 and less than 3, (A ¹o) _mtotal carbon number be more than 0 and less than 6,

In described general formula (4), R ⁶for hydrogen atom or methyl,

11. steel plate alkalis compositions according to claim 10, wherein, described nonionic surfactant (C) for being selected from the compound of more than a kind in the compound shown in following general formula (7) and general formula (8),

R ⁸-O-(A ³O) _o-H (7)

12. steel plate alkalis compositions according to claim 10 or 11, wherein, described pulping agent (D) is water-soluble polymer carboxylic acid.

13. steel plate alkalis compositions according to any one of claim 10 ~ 12, wherein, weight ratio, the i.e. dispersion agent (E)/nonionogenic tenside (C) of described dispersion agent (E) and described nonionogenic tenside (C) are more than 0.1 and less than 4.0.

14. any one of claim 10 ~ 13 institute's composition, wherein, the ratio of described water (F) is more than 45 % by weight and less than 70 % by weight.

The application of alkalis composition as the washing composition of steel plate of steel plate according to any one of 15. claims 10 ~ 14.