JP2020090606A - Detergent composition - Google Patents

Abstract

To provide a detergent composition having detergency to strong dirt such as oil contamination, and excellent in foam holding.SOLUTION: There is provided a detergent composition containing (A) an anionic surfactant, (B) a non-ionic surfactant, and (C) at least one kind of dihydroxydiethylglycine or a salt thereof, with 0.1 to 50 pts.mass of the (C) at least one kind of dihydroxydiethylglycine or the salt thereof based on total 100 pts.mass of the (A) anionic surfactant and (B) the non-ionic surfactant.SELECTED DRAWING: None

Description

TECHNICAL FIELD The present invention relates to a detergent composition, and more particularly to a detergent composition which has a cleaning power for strong stains such as oil stains and has excellent foam retention.

Cleaning of tableware, cooking utensils, etc. (tableware, etc.) is usually performed while rubbing the tableware etc. with a sponge etc. to which a cleaning agent has been added. When the dishes and the like are extremely dirty, the dishes and the like are also washed by soaking them in an aqueous solution diluted with a cleaning agent and then rinsing them. In such a dishwashing liquid cleaning agent, an anionic surfactant or a nonionic surfactant is generally used as a cleaning component.

For example, in Patent Document 1, as a kitchen cleaning composition that maintains cleaning power and foaming even after continuous cleaning, it is formed from (A) component: gelling agent (a1) and crosslinking agent (a2). A microgel particle group containing a crosslinked body and having an average particle diameter of 0.01 to 1000 μm, (B) component: a specific nonionic surfactant, (C) component: anionic surfactant, and (D) component: A kitchen cleaning composition comprising at least one selected from the group consisting of an amphoteric surfactant and a semipolar surfactant has been proposed.

JP, 2008-035269, A

However, the liquid detergent composition for kitchen proposed in Patent Document 1 may not always have sufficient foaming or foam persistence (foam retention), and is different from the technique proposed in Patent Document 1. At present, the establishment of new technology is desired.

Therefore, an object of the present invention is to provide a detergent composition which has a cleaning power for strong stains such as oil stains and has excellent foam retention.

As a result of intensive studies to solve the above problems, the present inventors have found that a detergent composition containing an anionic surfactant and a nonionic surfactant is further provided with a predetermined amount of at least one of dihydroxyethylglycine and a salt thereof. It was found that the above problems can be solved by adding them, and the present invention has been completed.

That is, the detergent composition of the present invention is a detergent composition containing (A) an anionic surfactant, (B) a nonionic surfactant, and (C) at least one of dihydroxyethylglycine and a salt thereof. And
0.1 to 50 parts by mass of at least one of (C) dihydroxyethylglycine and a salt thereof based on 100 parts by mass of the total of (A) anionic surfactant and (B) nonionic surfactant. It is characterized by being.

In the detergent composition of the present invention, the nonionic surfactant (B) preferably contains a polyoxyalkylenealkylamine. Further, in the detergent composition of the present invention, the total amount of (A) anionic surfactant and (B) nonionic surfactant is 100 to 100 parts by mass, and the (B) nonionic surfactant is 20 to 80 parts by weight. It is preferably part by mass. Further, in the detergent composition of the present invention, the proportion of polyoxyalkylenealkylamine in the nonionic surfactant (B) is preferably 25% by mass to 100% by mass. Furthermore, in the detergent composition of the present invention, the (A) anionic surfactant preferably contains a sulfate ether salt, a sulfonate, or a sulfate ester salt. The cleaning composition of the present invention can be suitably used for kitchen use.

According to the present invention, it is possible to provide a detergent composition having a cleaning power for strong stains such as oil stains and having excellent foam retention. Since the cleaning composition of the present invention has an excellent cleaning power against oil stains and the like, it can be suitably used as a cleaning agent for kitchen used in kitchens such as home kitchens, restaurants and dining rooms.

Hereinafter, the cleaning composition of the present invention will be described in detail.
The detergent composition of the present invention contains (A) an anionic surfactant, (B) a nonionic surfactant, and (C) at least one of dihydroxyethylglycine and a salt thereof (hereinafter, respectively). , "(A) component", "(B) component", "(C) component"). Generally, the cleaning agent for kitchen and the cleaning agent for home make bubbles and remove the dirt with the bubbles. In the cleaning composition of the present invention, the component (A) quickly foams and the foam is formed together with the component (B). Here, the foam of the component (A) has a property that it is easy to disappear because the texture is rough. On the other hand, the component (B) itself does not have a good foaming property, but has the property of strengthening the foam generated by the component (A) and improving the detergency. That is, the component (A) is mainly foaming, and the component (B) is mainly cleaning stains.

The cleaning composition of the present invention further contains a component (C) in addition to the components (A) and (B). Dihydroxyethylglycine is a kind of sequestering agent (chelating agent), and the chelating agent is generally used for preventing scale. However, dihydroxyethylglycine and its salts have a unique effect that the bubbles generated by the components (A) and (B) can be made finer and the sustainability of the bubbles can be improved even if there is dirt. Play. This makes it possible to wash many objects to be washed.

In addition, in the detergent composition of the present invention, the component (C) is 0.1 to 50 parts by mass with respect to the total 100 parts by mass of the components (A) and (B). By satisfying such a range, the above effect can be obtained. That is, if the amount of the component (C) is less than 0.1 part by mass, the bubbles cannot be sufficiently finely divided and the detergency cannot be improved. On the other hand, when the amount of the component (C) exceeds 50 parts by mass, the above effect is saturated, which is not preferable in terms of cost. It is also not preferable from the viewpoint of storage stability at 25°C and -5°C. The amount of the component (C) is preferably 1 to 20 parts by mass, more preferably 1 to 10 parts by mass, and even more preferably 100 parts by mass of the total of the components (A) and (B). Is 1 to 5 parts by mass.

In the cleaning composition of the present invention, the component (A) is not particularly limited. For example, fatty acid soap, linear alkylbenzene sulfonate, alkane sulfonate, α-olefin sulfonate, linear or branched alkyl sulfate ester salt, alkenyl sulfate ester salt, alkyl ether sulfate ester salt, alkenyl ether sulfate ester. Salt, polyoxyethylene alkyl ether sulfate ester salt, polyoxyethylene alkenyl ether sulfate ester salt, α-sulfo fatty acid alkyl ester salt, sulfosuccinate ester salt, acylated isethionate salt, acylated peptide salt, acylated amino acid salt, phosphorus Examples thereof include acid ester salts. Among these, from the viewpoint of detergency, the detergent composition of the present invention preferably contains a sulfate ether salt, a sulfonate salt, and a sulfate ester salt, and particularly, a polyoxyethylene alkyl ether sulfate salt, a straight chain Alkylbenzene sulfonates and α-sulfo fatty acid alkyl ester salts are also preferable in addition to these.

As the polyoxyethylene alkyl ether sulfate, a polyoxyethylene alkyl ether sulfate having a linear alkyl group having 8 to 16 carbon atoms is preferable, and a polyoxyethylene alkyl having a linear alkyl group having 12 to 14 carbon atoms is preferred. Ether sulfate is particularly preferred. Among them, polyoxyethylene (2 to 3) linear alkyl sulfate sodium salt is preferable because the effects of the present invention can be easily obtained. Here, for example, "polyoxyethylene (2-3)" means that the average number of repeating oxyethylene groups is 2-3.

As the alkylbenzene sulfonate, a linear alkylbenzene sulfonate having a linear alkyl group having 8 to 16 carbon atoms is preferable, and a linear alkylbenzene sulfonate having a linear alkyl group having 12 to 14 carbon atoms is particularly preferable. preferable.

The α-sulfo fatty acid alkyl ester salt is an α-sulfo fatty acid alkyl ester salt represented by the following general formula (I).
_{^{R 1 -CH (SO 3 M)}} -COOR 2 ··· (I)
Here, in the general formula (I), R ¹ is a hydrocarbon group having 14 to 16 carbon atoms, R ² is a hydrocarbon group having 1 to 6 carbon atoms, and M is a counter ion.

In the general formula (I), the hydrocarbon group represented by R ¹ may be linear or branched, or may have a cyclic structure. Among them, the hydrocarbon group for R ¹ is preferably an aliphatic hydrocarbon group, more preferably a linear or branched alkyl group, or a linear or branched alkenyl group, A linear alkyl group and a linear alkenyl group are more preferable.

The hydrocarbon group for R ² may be linear or branched, or may have a cyclic structure. Among them, the hydrocarbon group for R ² is preferably an aliphatic hydrocarbon group, more preferably a linear or branched alkyl group, or a linear or branched alkenyl group, A branched alkyl group and a branched alkyl group are more preferable. The number of carbon atoms of R ² is 1 to 6, preferably 1 to 3. Examples of the hydrocarbon group for R ² include a methyl group, an ethyl group, an n-propyl group and an isopropyl group. A methyl group, an ethyl group, and an n-propyl group are preferable, and a methyl group is particularly preferable, since the detergency is further improved as a cleaning component.

M is a counterion as long as it can form a water-soluble salt with R ¹ CH(COOR ² )SO ₃ ⁻ . Examples of the counter ion M include alkali metal ions, protonated amines, ammonium and the like. As the counter ion M, an alkali metal ion is preferable, and a sodium ion is particularly preferable, because it is easily available and the low-temperature stability of the liquid detergent is more easily enhanced.

The form of the salt of the component (A) is not particularly limited, and may be, for example, an alkali metal, alkaline earth metal, ammonium or alkanolamine, as long as it can form a water-soluble salt. Examples of the alkali metal include sodium and potassium. Examples of the alkaline earth metal include calcium and magnesium. Examples of the alkanolamine include monoethanolamine, diethanolamine, triethanolamine and the like.

The component (A) can be easily obtained on the market. For example, as polyoxyethylene alkyl ether sulfate, Teikapol NE1230 (manufactured by Teika Corporation), Teikapol NE1270 (manufactured by Teika Corporation), Teikapol NE1325 (manufactured by Teika Corporation), Teikapol NE1370 (Taika Corporation). As a straight-chain alkylbenzene sulfonate, such as "Taika Power LN2425" (manufactured by Teika Co., Ltd.), "Lipon LS-250" (manufactured by Lion Specialty Chemicals Co., Ltd.), α-sulfofatty acid alkyl Examples of the ester salt include "MIZULAN FL-80" (manufactured by LION ECO CHEMICALS SDN.BHD.) and "PALMFOONATE 6909F" (manufactured by KL-KEPONG OLEOMAS SDN.BHD.).

Further, as the component (A), those synthesized by a known method may be used. In addition, in the cleaning composition of the present invention, as the component (A), one type may be used alone, or two or more types may be used in combination.

In the detergent composition of the present invention, the component (B) is not particularly limited, but examples thereof include polyoxyalkylene alkyl ether, ester type polyoxyalkylene alkyl ether, polyoxyalkylene dialkyl ether, polyoxyalkylene alkylphenyl ether. , Fatty acid alkanolamide, polyoxyalkylene fatty acid alkanolamide, polyoxyalkylene fatty acid ester, polyoxyalkylene sorbitan fatty acid ester, alkyl glyceryl ether, polyglycerin fatty acid ester, sorbitan fatty acid ester, sorbitol fatty acid ester, methyl glucoside fatty acid ester, methyl mannoside fatty acid ester , Ethyl glucoside fatty acid ester, sucrose fatty acid ester, alkyl glucoside, alkyl polyglycoside, alkanoyl-N-methylglucamide, polyoxyethylene methyl ether fatty acid ester, fatty acid methyl ester ethoxylate, polyoxyalkylene alkylamine and the like.

Among these, polyoxyalkylene alkylamines are preferable in the detergent composition of the present invention. This is because polyoxyalkylenealkylamine suppresses denaturation of proteins by anionic surfactants, has the effect of reducing skin irritation, and is also excellent in detergency. Therefore, in the detergent composition of the present invention, it is preferable that the component (B) contains a polyoxyalkylenealkylamine. In this case, the proportion of the polyoxyalkylenealkylamine in the nonionic surfactant (B) is preferably 25 to 100% by mass. When the amount is 25 to 100% by mass, the effect of suppressing the protein denaturation by the anionic surfactant and the excellent detergency can be highly obtained. More preferably, it is 40 to 80 mass %.

ここで、一般式（ＩＩ）中、Ｒ^３は、炭素原子数８〜２２の直鎖状もしくは分岐鎖状のアルキル基、または炭素原子数８〜２２の直鎖状もしくは分岐鎖状のアルケニル基である。ＡＯは、エチレンオキサイド基またはプロピレンオキサイド基を示し、ｐ、ｑはそれぞれＡＯの平均付加モル数であって０以上の数を示す。 The polyoxyalkylene alkylamine is an alkylamine to which an alkylene oxide is added. As the component (B), compounds represented by the following general formula (II) are preferable.

Here, in the general formula (II), R ³ is a linear or branched alkyl group having 8 to 22 carbon atoms, or a linear or branched alkenyl group having 8 to 22 carbon atoms. Is. AO represents an ethylene oxide group or a propylene oxide group, and p and q each represent an average addition mole number of AO and are 0 or more.

In the general formula (II), R ³ is a linear or branched alkyl group having 8 to 22 carbon atoms, or a linear or branched alkenyl group having 8 to 22 carbon atoms. When the number of carbon atoms is 8 or more, the detergency becomes good, and when the number of carbon atoms is 22 or less, the solubility is improved. The number of carbon atoms in R ³ is preferably 16 or more from the viewpoint of detergency, and more preferably 20 or less from the viewpoint of solubility. Therefore, the number of carbon atoms of the alkyl group and the alkenyl group in R ³ is preferably 10 to 22, more preferably 12 to 20, more preferably 14 to 20, and particularly preferably 16 to 18.

AO is an ethylene oxide (EO) group or a propylene oxide (PO) group. Each of (AO)p and (AO)q in the general formula (b) may be a compound to which only EO is added (comprising only an EO group) or a compound to which only PO is added (comprising only a PO group). Or a mixture of EO and PO (addition of EO group and PO group). When EO and PO are mixed and added, as shown in JP-A-2003-505446, the EO group and the PO group may be discontinuously added in a block shape. .. p and q each represent the average number of moles of AO added, and each independently represent an integer of 0 or more. Note that p and q may be the same number or different numbers.

The component (B) can be easily obtained on the market. Examples include Pure Amir EP-300S, Pure Amir CPE-100, Pure Amir PPE-103, Pure Amir CCS-80, Pure Amir CF-60 and the like (manufactured by Sanyo Kasei Co., Ltd.). Moreover, you may use what was synthesize|combined by the well-known method. In addition, in the cleaning composition of the present invention, as the component (B), one type may be used alone, or two or more types may be used in combination.

In the detergent composition of the present invention, the component (C) is at least one of dihydroxyethylglycine and its salts. As a result, the bubbles can be made finer and the sustainability of the bubbles can be improved even if there is dirt. Examples of the salt of dihydroxyethylglycine include alkali metal salts such as sodium and potassium, ammonium salts, monoethanolamine, and alkanolamine salts such as diethanolamine and triethanolamine. As the salt, an alkali metal salt is preferable, and a sodium salt is more preferable. In addition, in the cleaning composition of the present invention, as the component (C), one type may be used alone, or two or more types may be used in combination.

In the detergent composition of the present invention, the total amount of (A) anionic surfactant and (B) nonionic surfactant is 100 to 100 parts by mass, and the (B) nonionic surfactant is 20 to 80 parts by mass. It is preferably part. By satisfying such a range, the effects of the present invention can be satisfactorily obtained. That is, when the amount of the component (A) is too large, sufficient detergency may not be obtained, and when the amount of the component (B) is too large, foaming may be deteriorated. It is also preferable from the viewpoint of storage stability at 25°C and -5°C. More preferably, it is 40 to 60 parts by mass.

The cleaning composition of the present invention is not particularly limited except that it contains the component (A), the component (B) and the component (C), and the proportions thereof are within the above ranges. For example, the detergent composition of the present invention preferably contains a solubilizer from the viewpoints of ease of handling during production, solubility in water when used, and the like.

Examples of the solubilizer include alcohols such as ethanol, 1-propanol, 2-propanol and 1-butanol; glycols such as propylene glycol, butylene glycol and hexylene glycol; diethylene glycol, triethylene glycol, tetraethylene glycol, average Examples thereof include polyethylene glycol having a molecular weight of about 200, polyethylene glycol having an average molecular weight of about 400, polyethylene glycol having an average molecular weight of about 1000, and polyglycols such as dipropylene glycol; alkyl ethers such as diethylene glycol monomethyl ether and diethylene glycol dimethyl ether; and water. Especially, it is preferable to contain water as a solubilizing agent. As the solubilizer, one type may be used alone, or two or more types may be used in combination.

Further, the detergent composition of the present invention may contain a cationic surfactant as long as the effect of the present invention is not impaired. As the cationic surfactant, for example, didecyldimethylammonium chloride, didecyldimethylammonium methosulfate, distearyldimethylammonium chloride, dioctyldimethylammonium chloride, distearyldihydroxyethylammonium chloride, ditallow tallowalkyldimethylammonium chloride, di(stearoyl). Oxyethyl)dimethylammonium chloride, di(oleoyloxyethyl)dimethylammonium chloride, di(palmitoyloxyethyl)dimethylammonium methosulfate, di(stearoyloxyisopropyl)dimethylammonium chloride, di(oleoyloxyisopropyl)dimethylammonium chloride, Examples thereof include di(oleoyloxybutyl)dimethylammonium chloride, di(stearoyloxyethyl)methylhydroxyethylammonium methosulfate, tri(stearoyloxyethyl)methylmethosulfate, lauryltrimethylammonium chloride and stearyltrimethylammonium chloride. The cationic surfactants may be used alone or in appropriate combination of two or more.

Further, the detergent composition of the present invention may contain an amphoteric surfactant as long as the effect of the present invention is not impaired. Examples of the amphoteric surfactant include alkyl dimethyl amine oxide-based ones such as lauryl dimethyl amine oxide, coconut alkyl dimethyl amine oxide and lauryl diethyl amine oxide; alkanoyl amide alkyl dimethyl amine oxide-based ones such as lauric acid amide propyl amine oxide. Can be mentioned.

Further, amino acetic acid betaines such as lauryl dimethyl amino acetic acid betaine, cocoalkyl dimethyl amino acetic acid betaine and lauric acid amidopropyl dimethyl amino acetic acid betaine; N-lauryl-N,N-dimethylammonium-N-propylsulfobetaine, N-lauryl- Sulfobetaines such as N,N-dimethylammonium-N-(2-hydroxypropyl)sulfobetaine; glycine-based compounds such as 2-lauryl-N-carboxymethyl-N-hydroxyethylimidazolinium betaine and sodium lauryldiaminoethylglycine Examples include aminopropionic acid-based compounds such as sodium laurylaminopropionate and sodium laurylaminodipropionate.

Furthermore, in the detergent composition of the present invention, as far as the effect of the present invention is not impaired, other inorganic salts, sequestering agents, anti-redeposition agents, polycarboxylates, enzymes, chlorine scavengers, if necessary, A bleaching agent, a hydrotrope, an enzyme activator, an antioxidant, an antiseptic, a dye, a fragrance, a pH adjuster and the like can be added.

Examples of the inorganic salts include sodium chloride, potassium chloride, sodium silicate, potassium silicate, sodium carbonate, potassium carbonate, sodium hydrogen carbonate, potassium hydrogen carbonate, sodium sulfate, potassium sulfate, sodium bicarbonate and the like.

Examples of the sequestering agent include citric acid, lactic acid, tartaric acid, oxalic acid, malic acid, gluconic acid, nitrilotriacetic acid, iminodiacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, glycol etherdiaminetetraacetic acid, and hydroxyethyliminodioic acid. Acetic acid. Furthermore, triethylene tetraamine hexaacetic acid, ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonic acid, 1-hydroxyethane-1,1-diphosphonic acid, ethanehydroxy-1,1,2- Examples thereof include organic phosphonic acid derivatives such as triphosphonic acid, ethane-1,2-dicarboxy-1,2-diphosphonic acid, methanehydroxyphosphonic acid, aminotrimethylenephosphonic acid, and ethylenediaminetetraxymethylenesulfonic acid, or salts thereof.

Examples of the anti-redeposition agent include polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone, carboxymethyl cellulose and the like.

Examples of the polycarboxylate include polyacrylic acid (salt), acrylic acid-allyl alcohol copolymer (salt), acrylic acid-maleic acid copolymer (salt), acrylic acid-sulfonic acid-based monomer copolymer ( Salt), polyhydroxyacrylic acid (salt), polycarboxylic acid ether, polytetramethylene-1,2-dicarboxylic acid (salt) and the like.

Examples of the enzyme include cellulase, protease, amylase, lipase, mannanase and the like.

Examples of the chlorine scavenger include ammonium sulfate, guadinine hydrochloride, guadinine carbonate, guanidine sulfamate, thiourea dioxide, monoethanolamine, diethanolamine, triethanolamine and the like.

Examples of the bleaching agent include percarbonate, perborate, sulfonated phthalocyanine salt, hydrogen peroxide and the like.

Hydrotropes include water-soluble solvents such as ethanol, propylene glycol and polyethylene glycol; aromatic sulfonic acids such as toluene sulfonic acid, xylene sulfonic acid, cumene sulfonic acid, substituted or unsubstituted naphthalene sulfonic acid or salts thereof; benzoic acid Examples thereof include acids, aromatic carboxylic acids such as sodium benzoate, and salts thereof.

As the antioxidant, for example, tert. -Butylhydroxytoluene (hereinafter, tert.-butyl is abbreviated as t-butyl), 4,4'-butylidene bis-(6-t-butyl-3-methylphenol), 2,2'-butylidene bis-(6 -T-butyl-3-methylphenol), monostyrenated cresol, distyrenated cresol, monostyrenated phenol, distyrenated phenol, 1,1′-bis-(4-hydroxyphenyl)cyclohexane and the like.

The detergent composition of the present invention is prepared by, for example, dissolving the above-mentioned component (A), component (B) and component (C) and, if necessary, an optional component in water and using a pH adjuster to give a predetermined composition. It can be manufactured by adjusting the pH of. In the detergent composition of the present invention, the pH at 25°C is preferably 3 to 11 from the viewpoint of skin irritation and detergency, and more preferably 4 to 11.

Examples of the pH adjuster include sodium hydroxide, potassium hydroxide, monoethanolamine, diethanolamine and triethanolamine when the pH is low. When the pH is high, hydrochloric acid, sulfuric acid, acetic acid, citric acid, etc. may be mentioned.

INDUSTRIAL APPLICABILITY The cleaning composition of the present invention can be used for used tableware and cooking utensils in which strong oil stains are present, and can exhibit strong detergency, good foaming, and foam sustainability. Therefore, the cleaning composition of the present invention can be suitably used as a cleaning agent for kitchen used in kitchens such as home kitchens, restaurants, and dining rooms.

When the cleaning composition of the present invention is used for cleaning dishes and the like, the cleaning composition of the present invention may be contained in a sponge as it is to wash an object to be cleaned. It is also possible to dissolve an object in water to prepare a dilute cleaning solution, and rub the object to be cleaned in this cleaning solution while rubbing it with a sponge for cleaning. Examples of objects to be cleaned include tableware, kitchen utensils such as cookware, and the like.

Hereinafter, the present invention will be described in more detail with reference to Examples and Comparative Examples.
<Examples and Comparative Examples>
The cleaning compositions of Examples and Comparative Examples were prepared based on the formulations shown in Tables 1 to 5 below. The detergent composition thus obtained was evaluated for protein denaturation rate as an index of detergency, foam retention, and skin irritation. The measurement methods and evaluation criteria are as follows. The units in the table are parts by mass, and other than the materials in the table, 0.20 parts by mass of sodium benzoate, 3.50 parts by mass of propylene glycol, 5.50 parts by mass of dipropylene glycol, and 3 parts of ethanol. 0.00 mass part was included, and the whole was made 100 mass parts with water.

<Cleaning power>
Into a stainless steel vat (250×210×40 mm), 85 g of water used and 1.7 g of a cleaning agent were put and uniformly dissolved with a sponge. The sponge was rubbed 10 times to make it lather and then the soil dish was washed under certain conditions. The sponge after washing was returned to the vat and rubbed twice, and the washing was repeated on the next dirt dish. The detergency was defined as the number of sheets where the detergent foam liquid of the stainless steel vat disappeared. The washed dish was rinsed well with tap water at 40° C. and dried, and then the surface was observed carefully, and the number of washable dishes was determined as the number of washable sheets without any stickiness or stickiness. Detailed test conditions and evaluation criteria are as follows.

〔Test condition〕
Detergent amount: 1.7g
Sponge: Dishwashing sponge (Product name: Scotch Bright manufactured by Sumitomo 3M Limited)
Soil composition: Margarine/oleic acid/wheat flour=100/4/104 mixture mixture Soil dish: 3 g of soil is evenly applied to one porcelain dish having a diameter of 21 cm, and the mixture is kept in a thermostat at 25° C. overnight. Water left unused: Hardness adjusting water (25°C, hardness 50ppm)

〔Evaluation criteria〕
◎: Good detergency (9 or more washes)
○: Standard cleaning power (7-8 or more cleaning sheets)
Δ: The cleaning power is slightly inferior (the number of cleaning sheets is 5 to 6)
×: Inferior in cleaning power (the number of cleaning is 4 or less)

<Bubble lasting>
The foam retention was defined as the number of dishes in which foam remained after cleaning in the above-mentioned test of cleaning power.
⊚: Good foam retention (7 or more bubbles remaining after cleaning)
○: Standard foam retention (5 to 6 or more bubbles remaining after washing)
Δ: Poor foam retention (3-4 foams remaining after washing)
×: Poor foam retention (2 or less bubbles remaining after cleaning)

<Protein denaturation rate>
The method was based on the “Method for measuring protein denaturation rate” developed by Miyazawa et al. of Shiseido [Cosmetics Technology Magazine No. 18, p. Specifically, using water-based gel filtration chromatography, the absorption wavelength intensity of the standard protein (ovalbumin) was measured in the presence and absence of a detergent. The reduction rate of the peak height of the standard protein in the presence of the detergent relative to the peak height of the standard protein in the absence of the detergent was measured as the protein denaturing action of the detergent. The detailed measuring method and conditions are as follows.

〔Measuring method〕
9 mL of a buffer solution (0.05 M phosphate buffer solution, pH=7.0) containing 0.025% ovalbumin was mixed with 1 mL of the detergent composition shown in Tables 1 to 4 having a pure concentration of 2%. After leaving this mixed solution at 25° C. for 12 hours, a sample was analyzed by liquid chromatography.

〔Measurement condition〕
Standard protein: ovalbumin (Wako Pure Chemical, for chemistry)
Column: Water solvent gel filtration column (Inertsil WP300 Diol 5 μm 4.6×250 mm, manufactured by GLSsciences)
Eluent: 0.05M phosphate buffer (pH 7.0)
Detector: UV220nm
Sample addition amount: 20 μL

〔Evaluation criteria〕
⊚: Protein denaturation rate (%) is 0% or more and less than 5%, no skin irritation ○: Protein denaturation rate (%) is 5% or more and less than 10%, skin irritation is slight Δ: Protein denaturation rate (%) Is 10% or more and less than 15%, slightly irritating to the skin x: Protein denaturation rate (%) is 15% or more, irritating to the skin

※１：（Ａ）成分と（Ｂ）成分の合計１００質量部に対する（Ｃ）成分の量（質量部）
※２：（Ａ）成分と（Ｂ）成分の合計１００質量部に対する（Ｂ）成分の量（質量部）

*1: Amount of component (C) (parts by weight) based on 100 parts by weight of component (A) and component (B) in total
*2: The amount (parts by mass) of the component (B) with respect to 100 parts by mass as the total of the components (A) and (B).

A-1: Teikapol NE-1230 (sodium polyoxyethylene lauryl ether sulfate (average number of moles of ethylene oxide added: 3)
A-2: Teika Power LN-2425 (sodium linear alkylbenzene sulfonate)
B-1: APG 0810 (alkyl (C8-10) glycoside)
B-2: Pure Amyle CF-60 (polyoxyalkylene alkyl amine)
B-3: Pure Amir CCS-80 (polyoxyalkylene alkyl amine)
B-4: Aminone C-11S (coconut oil fatty acid N-methylethanolamide)
C-1: CHIREST G-50 (sodium dihydroxyethylglycine)
C'-1: CHIREST E-20 (hydroxyethyliminodiacetic acid/2Na)
C′-2: CHIREST PH-325 (Nitrilotris (methylenetrisphosphonic acid)/5Na)
C'-3: Killest 700 (nitrilotriacetate.3Na.monohydrate)
C'-4: Clewat N2 (EDTA)

From Tables 1 and 2, it can be seen that the use of dihydroxyethylglycine as the chelating agent improves the detergency and foam retention. Similar effects were also observed when the component (A) was a sulfonate. Further, when dihydroxyethylglycine is not used (Comparative Example 1), a large amount of surfactant is required to obtain the same detergency as the detergent composition of the present invention, and skin irritation deteriorates. It can be seen that (Comparative Example 7). Further, it is understood that the effects of the present invention cannot be obtained unless the components (A) and (B) are contained.

From Table 3, it can be seen that the effect of the present invention is saturated when the component (C) exceeds 50 parts by mass.

Furthermore, from Table 4, it can be seen that the use of polyoxyalkylenealkylamine as the nonionic surfactant reduces the protein denaturation rate and results in low irritation.

Furthermore, from Table 5, it can be seen that when the proportion (mass %) of the polyoxyalkylenealkylamine in (B) is 25 parts by mass or more, the protein denaturation rate decreases and the stimulant effect is reduced. (Examples 13 and 14)

Claims (6)

A cleaning composition comprising (A) an anionic surfactant, (B) a nonionic surfactant, and (C) at least one of dihydroxyethylglycine and salts thereof,
0.1 to 50 parts by mass of at least one of (C) dihydroxyethylglycine and a salt thereof based on 100 parts by mass of the total of (A) anionic surfactant and (B) nonionic surfactant. A cleaning composition comprising: The cleaning composition according to claim 1, wherein the nonionic surfactant (B) contains a polyoxyalkylene alkylamine. The (B) nonionic surfactant is 20 to 80 parts by mass in a total of 100 parts by mass of the (A) anionic surfactant and the (B) nonionic surfactant. Cleaning composition. The cleaning composition according to claim 2 or 3, wherein the proportion of the polyoxyalkylene alkylamine in the nonionic surfactant (B) is 25 to 100 parts by mass. (A) The detergent composition according to any one of claims 1 to 4, wherein the anionic surfactant contains a sulfate ether salt, a sulfonate salt, and a sulfate ester salt. The cleaning composition according to any one of claims 1 to 5, which is for a kitchen.