JPH1121582A - Detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a detergent composition being lowly skin-irritating, having excellent foamability, facilitating to comb the hair smoothly with fingers in rinsing after washing and giving comfortable humectant feel to the hair or skin after washing and drying. SOLUTION: This composition comprises an N-long-chain acyl dipeptide (salt) (A) of formulas I and/or II having a dipeptide structure comprising an acid amino acid and a neutral amino acid and an N-long-chain acyl acid amino acid (salt) of formula III and an N-long-chain acyl neutral amino acid (salt) (B) of formulas IV in an A/B weight ratio of 0.05/100-20/100. Formula I: R<1> - CO-(X-Y)-O 1/nM<1n+> , Formula II: R<2> -CO-(Y-X-)-O 1/nM<2n+> (R<1> and R<2> are independently 7-21C linear or branched alkyls or alkenyls; X is an acid amino acid residue; Y is a neutral amino acid residue; M<1> and M<2> are independently hydrogen, alkali metals, alkaline earth metals, organic amines, basic amino acids or ammonium; when M<1> and M<2> are monovalent ions, n=1, and they are divalent ions, n=2). Formula III: R<3> -CO-X-O 1/nM<3n+> , Formula IV: R<4> CO-Y-O 1/nM<4n+> (R<3> and R<4> are each a group similar to R<1> or R<2> ; X and Y are as defined above; and M<3> , M<4> and n are the same as M<1> , M<2> and n, respectively).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition, and more particularly, to an N-long chain acylated product (salt) (A) of a dipeptide comprising an acidic amino acid and a neutral amino acid, and the same acidic amino acid as described above. N-long chain acylated product (salt) of the above and N-long chain acylated product (salt) of the same neutral amino acid as described above
And (B) in a specific weight ratio.
The present invention relates to a detergent composition which is less irritating to the skin, is excellent in foaming, passes through fingers during rinsing in hair washing, and is excellent in moisturizing feeling of skin and hair after drying.

[0002]

2. Description of the Related Art Detergents that frequently come into contact with skin and hair, such as shampoos, facial cleansing foams, and kitchen detergents,
The emphasis is on low stimulation. For example, polyoxyethylene alkyl ether sulfate and alkylbenzene sulfonate, which are frequently used in detergents, are highly irritating to hair and skin, and have a feeling of squeaking of hair during rinsing and a feeling of tightness of skin after use. The feeling of use is not satisfactory.

[0003] As a detergent having a mild effect on skin and hair, N-acylamino acids such as N-long-chain acylglutamic acid and N-long-chain acylalanine and peptides obtained by hydrolyzing natural proteins have been used. N-long-chain acyl peptides acylated with higher fatty acids are known.

[0004] N-long-chain acyl-neutral amino acids such as N-long-chain acylalanine are neutral to alkaline, have excellent foaming properties, and have little squeaky feeling and good finger passing during rinsing during hair washing. However, in the weakly acidic region, it is difficult to maintain liquid properties such as precipitation of crystals, and foaming is significantly reduced.

On the other hand, N-long-chain acyl-acid amino acids such as N-long-chain acyl-glutamic acid have excellent solution stability even in a weakly acidic region, and also have an excellent moisturizing effect on skin and hair after washing and drying. However, foaming and foam stability were not sufficient, and there was a problem in the feeling of squeaking during rinsing in hair washing and the feeling of use such as following a finger.

[0006] Further, N-long-chain acyl hydrolyzed peptides have a drawback that they have a peculiar odor and become turbid when mixed with a liquid detergent, and the feeling of use is not satisfactory.

[0007] In recent years, with the diversification of the performance required for detergent compositions, in addition to low irritation, detergents that are more excellent in usability such as foaming, moisturizing feeling, and rinsing feeling have been regarded as very important. There is a demand for the development of a cleaning composition having higher added value.

[0008]

SUMMARY OF THE INVENTION Under the background of the prior art described in the preceding paragraph, the present invention has low irritation to the skin, is excellent in foaming, further passes through the fingers when rinsing hair, and cleans the skin after washing and drying. It is an object of the present invention to provide a detergent composition having excellent moisturizing feeling of hair and hair.

[0009]

Means for Solving the Problems The present inventors have conducted intensive studies in order to achieve the above-mentioned object, and have found that (A) N-amino acid having a dipeptide structure consisting of an acidic amino acid and a neutral amino acid.
A detergent composition comprising a long-chain acyl dipeptide (salt) and (B) an N-long-chain acyl acidic amino acid (salt) and an N-long acyl neutral amino acid (salt) in a specific ratio as described in the above item. The present invention has been found to be an excellent cleaning composition having the following formula, and based on such findings, the present invention has been completed.

That is, the present invention relates to an N-long chain acyl dipeptide represented by the following general formula (1) and / or (2) or a salt thereof (A).

Embedded image (Wherein, R ¹ and R ² each independently represent a group having 7 to 7 carbon atoms)
21 represents a linear or branched alkyl or alkenyl group, X represents an acidic amino acid residue, Y represents a neutral amino acid residue, M ¹ and M ² each independently represent hydrogen,
Denotes an alkali metal, alkaline earth metal, organic amine, basic amino acid or ammonium, and M ¹ and M ² are n = 1 when they are monovalent ions and n = 2 when they are divalent ions . ) N- represented by the following general formulas (3) and (4), respectively.
A long-chain acyl acidic amino acid or a salt thereof and an N-long acyl neutral amino acid or a salt thereof (B),

Embedded image (Wherein, R ³ and R ⁴ each independently represent a group having 7 to 7 carbon atoms)
21 represents a linear or branched alkyl or alkenyl group; X represents the same acidic amino acid residue as described above;
Represents the same neutral amino acid residue as described above, M ³ and M ⁴ each independently represent hydrogen, an alkali metal, an alkaline earth metal, an organic amine, a basic amino acid or ammonium, and M ³ and M ⁴ represent When n is a monovalent ion, n = 1, and when it is a divalent ion, n = 2. ) (A) / (B) = 0.05 / 100 to 20/1 by weight ratio
A cleaning composition, characterized in that it contains at a ratio of 00.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail.

The N-long-chain acyl dipeptide having a dipeptide structure comprising an acidic amino acid and a neutral amino acid or a salt thereof according to the present invention is represented by the following general formula (1) or (2):
Can be represented by

[0013]

Embedded image

In the formula, R ¹ and R ² each independently represent a linear or branched alkyl or alkenyl group having 7 to 21 carbon atoms; X represents an acidic amino acid residue;
Represents a neutral amino acid residue, M ¹ and M ² each independently represent hydrogen, an alkali metal, an alkaline earth metal, an organic amine, a basic amino acid or ammonium, and M ¹ and M ² represent For ions, n = 1,
For divalent ions, n = 2.

Further, the N-long-chain acyl acidic amino acid or its salt and the N-long acyl neutral amino acid or its salt can be represented by the following general formulas (3) and (4), respectively.

[0016]

Embedded image

In the formula, R ³ and R ⁴ each independently represent a linear or branched alkyl or alkenyl group having 7 to 21 carbon atoms, X represents the same acidic amino acid residue as described above, and Y represents Shows the same neutral amino acid residue as above, M ³
And M ⁴ each independently represent hydrogen, an alkali metal, an alkaline earth metal, an organic amine, a basic amino acid or ammonium, and M ³ and M ⁴ represent n = 1 and divalent when they are monovalent ions. For ions, n = 2.

The N-long-chain acyl dipeptide (salt) represented by the general formula (1) or (2) and the N-long-chain acyl represented by the general formula (3) used in the cleaning composition of the present invention. X of the acidic amino acid (salt) represents an acidic amino acid residue,
Glutamic acid, aspartic acid, and the like can be given as acidic amino acids that provide such residues. Such N-long-chain acyl dipeptides (salts) and N-long-chain acyl acidic amino acids (salts) may be racemic or optically active.

Further, the N-long-chain acyl dipeptide (salt) represented by the above general formula (1) or (2) and the N-length represented by the general formula (4) used in the detergent composition of the present invention. Y of a chain acyl neutral amino acid (salt) represents a neutral amino acid residue, and neutral amino acids that provide such a residue include glycine, alanine, β-alanine, sarcosine, N-methyl-β-alanine, γ-aminobutyric acid, ε-aminocaproic acid, valine, leucine, isoleucine, serine, threonine, cystine, cysteine, methionine, phenylalanine, tyrosine, tryptophan, proline and hydroxyproline, but preferably glycine, alanine, β-alanine, sarcosine, N-methyl-β-alanine, valine, leucine, isoleucine, serine, A threonine and phenylalanine, and particularly preferred are glycine, alanine, valine, leucine, isoleucine and threonine. Such N-long-chain acyl dipeptides (salts) and N-long-chain acyl neutral amino acids (salts) may be racemic or optically active.

R ¹ and R ^{2 of} the N-long-chain acyl dipeptide salt represented by the general formula (1) or (2), N-long-chain acyl acidic amino acid (salt) represented by the general formula (3) )
The R ³ and R ⁴ of N- long chain acyl neutral amino acid salt represented by the general formula (4) are each independently a linear or branched alkyl or alkenyl group of 7 to 21 carbon atoms As shown, the long-chain acyl residues R ¹ CO-, R ² CO- and R ³ containing these alkyl groups or alkenyl groups are shown.
CO— and R ⁴ CO— are, for example, lauric acid, myristic acid, palmitic acid, stearic acid, arachidic acid,
Fatty acids having 8 to 22 carbon atoms such as coconut oil fatty acid, hardened tallow fatty acid, behenic acid, isostearic acid, oleic acid, castor oil fatty acid, olive oil fatty acid, palm oil fatty acid, and mixed fatty acids including these can be introduced. .

M ¹ and M ^{2 of} the N-long-chain acyl dipeptide salt represented by the general formula (1) or (2), and the N-long-chain acyl acidic amino acid salt represented by the general formula (3) M
³ and as the basic component of M ⁴ of N- long chain acyl neutral amino acid salt represented by the general formula (4), each independently, alkali metals such as sodium and potassium; magnesium, alkaline earth metals such as calcium Metal; monoethanolamine, diethanolamine, triethanolamine, 2-amino-2-methyl-1-propanol,
2-amino-2-methyl-1,3-propanediol,
Organic amines such as tetrakis (2-hydroxyisopropyl) ethylenediamine; basic amino acids such as lysine, ornithine and arginine; and ammonium. Further, the compounds of the general formulas (1) to (3) originally have two carboxyl groups, and one of them can form a salt with the above-mentioned M ¹ , M ² and M ³ ,
Needless to say, the other one may form a salt with the above base component. The above base component may be a combination of two or more kinds.

The N-long-chain acyl dipeptide represented by the general formula (1) or (2) includes N-long-chain acylglutamylglycine, N-long-chain acylglycylglutamic acid, N-long-chain acylglutamylalanine , N-long chain acylalanylglutamic acid, N-long chain acylglutamylthreonine, N-long chain acylthreonylglutamic acid, N
-Long-chain acylglutamylvaline, N-long-chain acylvalylglutamic acid, N-long-chain acylglutamylleucine, N
-Long chain acyl leucyl glutamic acid, N- long chain acyl glutamyl isoleucine, N- long chain acyl isoleucyl glutamic acid, N- long chain acyl asparatyl glycine, N
-Long-chain acylglycylaspartic acid, N-long-chain acylasparatylalanine, N-long-chain acylalanylaspartic acid, N-long-chain acylasparatylthreonine, N
-Long chain acyl threonyl aspartic acid, N-long chain acyl asparatyl valine, N-long chain acyl valyl aspartic acid, N-long chain acyl asparatyl leucine, N-long chain acyl leucyl aspartic acid, N -Long-chain acyl asparatyl isoleucine, N-long-chain acyl isoleucyl aspartic acid and the like can be mentioned as those preferably used. The peptide bond via the carboxyl group of the acidic amino acid may be via any carboxyl group, ie, α and β for aspartic acid.
Any of those via a carboxyl group may be used, and those of glutamic acid may be via any of α and γ carboxyl groups. Further, these N-long chain acyl dipeptides may be any of a racemic form and an optically active form.

N- represented by the general formula (1) or (2)
The long-chain acyl dipeptide or a salt thereof can be easily produced by, for example, a method of producing a dipeptide composed of an acidic amino acid and a neutral amino acid, and then acylating the dipeptide with a fatty acid halide in an aqueous alkali solution. The dipeptide can be produced by a usual method in peptide chemistry. A method of condensing an N-long-chain acyl amino acid and a carboxyl-protected amino acid with a condensing agent such as DCC and then selectively removing the carboxyl-protecting group; Can be easily produced by a method of converting into an acid halide, followed by a condensation reaction with an amino acid. The combination relating to the optically active form of an acidic amino acid and a neutral amino acid in a dipeptide is L-form and L-form, L-form and L-form.
Of course, any of a body and a D body, a D body and an L body, and a D body and a D body may be used.

The N-long-chain acyl acidic amino acid (salt) represented by the general formula (3) and the N-long acyl neutral amino acid (salt) represented by the general formula (4) are obtained by converting an amino acid and a fatty acid halide. A method using a Schotten Baumann reaction for condensation in an aqueous alkali solution is generally used, and examples thereof include JP-B-46-8865 and JP-B-48-35.
058 and JP-B-51-38681. Of course, the amino acid to be acylated may be any of L-form, D-form and racemic-form.

The cleaning composition of the present invention is characterized by containing roughly two types of active ingredients (A and B) at a specific ratio.

The active ingredient (component A) is an N-long chain acylated dipeptide comprising an acidic amino acid and a neutral amino acid or a salt thereof, that is, N represented by the general formula (1) or (2). -One or more of long chain acyl dipeptides and salts thereof. That is, the component A is selected from N-long-chain acyl dipeptides represented by the general formula (1) and salts thereof, and N-long-chain acyl dipeptides and salts thereof represented by the general formula (2). One or more types. Therefore, the component A comprises only the compounds represented by the general formula (1), only the compounds represented by the general formula (2), and the compound represented by the general formula (1) It can be selected from both of the compounds represented by (2).

Another component (Component B) of the active ingredient is an N-long-chain acylamino acid (salt), which is an N-long-chain acylamino acid and its salt (ie, an N-long-chain acylamino acid)
-At least one selected from long-chain acyl acidic amino acids and salts thereof and N-long acyl neutral amino acids and salts thereof (that is, N-long acyl neutral amino acids represented by the general formula (4) and Salt).

In the detergent composition of the present invention, the ratio of N-long-chain acyl dipeptide (salt) (component A) to N-long-chain acyl amino acid (salt) (component B) is (A) / weight ratio.
(B) = 0.05 / 100 to 20/100, preferably 0.1 / 100 to 10/100. 0.05
If it is less than / 100, a sufficient feeling of use cannot be obtained, while
If it exceeds 20/100, the usability will be reduced and the cost will be disadvantageous.

Of the component B, N represented by the general formula (3)
The ratio of the long-chain acyl acidic amino acid (salt) to the N-long-chain acyl neutral amino acid (salt) represented by the general formula (4) is usually (3) / (4) = 5/95 by weight. 95/5
However, when used in a weakly acidic region, the ratio of N-long-chain acyl acidic amino acids (salts) is preferably large in order to enhance the solution stability, and is preferably 60/40 to 95/5.
If it exceeds 95/5, or if it is less than 5/95, the feeling of use is reduced.

Washing prepared by combining the N-long-chain acyl acidic amino acid (salt) represented by the general formula (3) and the N-long-chain acyl neutral amino acid (salt) represented by the general formula (4) The agent composition compensates to some extent the disadvantages that occur when each is used alone. For example, foaming in a weakly acidic region can be improved by appropriately combining an N-long-chain acyl acidic amino acid (salt) and an N-long-chain acyl neutral amino acid (salt) (see Table 3 below). However, the addition of the N-long-chain acyl dipeptide (salt) represented by the general formula (1) and / or the N-long-chain acyl dipeptide (salt) represented by the general formula (2) further increases the rinsing time. The feeling of squeaking, finger passing, and moisturizing feeling are greatly improved, and a cleaning composition having a very excellent conditioning effect can be obtained. In addition, these N-long chain acyl dipeptides (salts) exhibit a sufficient conditioning effect even when added in a very small amount as compared with other components.

The total content of the N-long-chain dipeptide (salt) (component A) and the N-long-chain acylamino acid (salt) (component B) in the detergent of the present invention is usually 1% by weight or more, Preferably it is 3-80% by weight. If the total content is less than 1%, a satisfactory feeling during use cannot be obtained.

The detergent composition of the present invention may contain other surfactants as long as the effects of the present invention are not impaired. There is no particular limitation on such a surfactant, as long as it is a surfactant usually used in a detergent composition,
The detergent composition of the present invention can be used alone or in combination of two or more kinds alone or in combination. Examples of such surfactants include higher fatty acid salts, polyoxyalkyl ether sulfates, N-acylaminocarboxylates, polyoxyethylene alkylethercarboxylates, N-acyltaurine salts, and sulfosuccinic surfactants. Surfactants such as anionic surfactants; amphoteric surfactants such as betaine alkyldimethylaminoacetate, betaine higher fatty acid amidopropyldimethylaminoacetate and imidazoline surfactants; alkylsaccharide surfactants and polyoxyethylene Nonionic surfactants such as alkyl ether surfactants, higher fatty acid alkanolamides and amine oxides; benzalkonium chloride, alkyltrimethylammonium chloride, dialkyldimethylammonium chloride, N-acyl arginine lower alkyl esters Cationic surfactants such as pyrrolidone carboxylate; and the like. In addition, N-acyl acidic amino acids (salts) and N-acyl neutral amino acids (salts) other than the essential components (component B) of the detergent composition of the present invention can be appropriately blended as long as they do not interfere.

The detergent composition of the present invention also contains a humectant, such as ethylene glycol, propylene glycol, 1,3-butylene glycol, glycerin, or sorbitol, which is usually used; glycerin monostearate, Emulsifiers such as oxyethylene sorbitan monolaurate; hydrocarbons such as liquid paraffin, petrolatum and squalane; esters such as isopropyl myristate, octyldodecyl myristate; cellulose derivatives such as hydroxyethyl cellulose, hydroxypropyl cellulose and carboxymethyl cellulose; acrylic acid Polymers such as anionic polymers; various silicon derivatives; cationic polymers such as cationized guar gum; preservatives such as parapen derivatives; lauryl dimethylamine oxide Foams; perfumes; dyes; viscosity modifiers;
Pearling agents; antioxidants; bactericides; anti-inflammatory agents; ultraviolet absorbers; pH adjusters;

The most effective form of the detergent composition of the present invention as a detergent is a liquid, a paste, a gel, or the like.
There are no particular restrictions on preparing the cleaning composition of the present invention into these dosage forms, and any method conventionally known can be used.

The detergent composition of the present invention can be used for various purposes such as kitchen detergents, shampoos, body shampoos, facial cleansing foams, laundry detergents, etc., and particularly shampoos. Suitable for body shampoo, facial cleansing foam, etc.

[0036]

The present invention will be described in more detail with reference to the following examples. However, the present invention is not limited to the embodiments described below.

The evaluation tests in the following Examples and Comparative Examples were performed as follows.

(A) Evaluation of foaming: The total concentration of the surfactant was 0.5% by weight in distilled water and the pH was 5.
An aqueous solution adjusted to 9 was prepared. Take 50g of it, 3
The mixture was stirred for 5 seconds with a 50 ml-volume household mixer (manufactured by Iwatani Sangyo Co., Ltd.), and the volume (ml) of the foam after 1 minute of standing was measured to evaluate the foam amount according to the criteria shown in Table 1 below. .

[0039]

[Table 1]

(B) Evaluation of feeling of use: An aqueous solution having a total concentration of surfactant of about 20% by weight was prepared with distilled water,
Sensory evaluation during hair washing and hand washing was performed by 0 panelists. The moisture sensation after drying (hair) and the moisture sensation after drying (hand) in the hand washing test were evaluated based on the criteria shown in Table 2 below.
The results were based on the average of 20 panelists.

[0041]

[Table 2]

Examples 1-2 and Comparative Examples 1-4: Detergent stock solutions were prepared with various compositions as shown in Table 3 below. In the table, numerical values represent% by weight, and the remaining amount indicates that the total amount was adjusted to 100% by weight with purified water. From these stock solutions, the aqueous solution for foaming evaluation described in the above (a) was prepared and evaluated for foaming. The results are also shown in the table.

[0043]

[Table 3]

From the results shown in the above table, in the detergent composition of the present invention (Example) and the composition of Comparative Example, foaming in the weakly acidic region was due to N-long chain acyl acidic amino acid (salt) and N-long chain. It can be seen that it can be improved by adjusting the mixing ratio with the acyl neutral amino acid (salt) to an appropriate ratio.

Examples 3 to 7 and Comparative Examples 5 to 10: Detergent liquids having various compositions as shown in Table 4 below (the total concentration of surfactant is about 20% by weight as described above. Represents weight%, and the remaining amount indicates that the total amount was adjusted to 100% by weight with purified water (the same applies to Table 5).
The usability of various items shown in the table was inspected. The results are also shown in the table.

[0046]

[Table 4]

From the results shown in the above table, the cleaning composition of the present invention (Example) has a moisturizing sensation (hand and hair) after drying and a finger wiping condition after rinsing. It can be seen that it is excellent in usability.

Examples 8 to 11 and Comparative Examples 11 to 14:
Preparation of detergent solution with various compositions shown in Table 5 below,
The usability of various items shown in the table was inspected. The results are also shown in the table.

[0049]

[Table 5]

From the results shown in the above table, the cleaning composition of the present invention (Example) has a moisturizing feeling after drying (hand and hair) and a finger wiping condition after rinsing. It can be seen that it is excellent in usability.

Example 12 (Hair Shampoo) A hair shampoo was experimentally produced with the composition shown in Table 6 below.

[0052]

[Table 6]

The above hair shampoo was excellent in foaming, moisturizing sensation of the hair after drying and as a finger when rinsing.

Example 13 (Hair Shampoo) A hair shampoo having the composition shown in Table 7 below was produced as a trial.

[0055]

[Table 7]

The above hair shampoo was as good as that in Example 12.

Example 14 (Hair Shampoo) A hair shampoo having the composition shown in Table 8 below was produced as a trial.

[0058]

[Table 8]

The hair shampoo was as good as in Example 12.

Example 15 (Hair Shampoo) A hair shampoo was experimentally produced with the composition shown in Table 9 below.

[0061]

[Table 9]

The hair shampoo was as excellent as in Example 12.

Example 16 A hair shampoo was experimentally produced with the composition shown in Table 10 below.

[0064]

[Table 10]

The hair shampoo was as excellent as in Example 12.

Example 17 A hair shampoo was trial-produced with the composition shown in Table 11 below.

[0067]

[Table 11]

The hair shampoo was as excellent as in Example 12.

Example 18 A hair shampoo was experimentally produced with the composition shown in Table 12 below.

[0070]

[Table 12]

The hair shampoo was as good as that in Example 12.

Example 19 A hair shampoo was experimentally produced with the composition shown in Table 13 below.

[0073]

[Table 13]

The hair shampoo was as excellent as in Example 12.

Example 20 A body shampoo was prepared on a trial basis with the composition shown in Table 14 below.

[0076]

[Table 14]

The above body shampoo foamed and was excellent in skin moisturizing feeling.

Example 21 A facial wash was prepared as a trial with the composition shown in Table 15 below.

[0079]

[Table 15]

The above facial cleanser foamed and was excellent in skin moisturizing feeling.

Example 22 A facial cleanser was prepared on a trial basis with the composition shown in Table 16 below.

[0082]

[Table 16]

The above facial cleanser foamed and was excellent in the moisturizing feeling of the skin.

[0084]

EFFECTS OF THE INVENTION The cleaning composition of the present invention has little irritation to the skin, is excellent in foaming, has good finger rinsing during hair washing, and has a moisturizing effect after drying in hair and skin washing. It has a good feeling.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hideki Yoshihara 1-1, Suzukicho, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture Ajinomoto Co., Inc. (72) Inventor Naoko Mikami 1 Suzukicho, Kawasaki-ku, Kawasaki-shi, Kanagawa Prefecture -1 Inside Ajinomoto Co. Central Research Laboratory

Claims (4)

[Claims] An N-long-chain acyl dipeptide represented by the following general formula (1) and / or (2) or a salt thereof (A):
And (Wherein, R ¹ and R ² each independently represent a group having 7 to 7 carbon atoms)
21 represents a linear or branched alkyl or alkenyl group, X represents an acidic amino acid residue, Y represents a neutral amino acid residue, M ¹ and M ² each independently represent hydrogen,
Denotes an alkali metal, alkaline earth metal, organic amine, basic amino acid or ammonium, and M ¹ and M ² are n = 1 when they are monovalent ions and n = 2 when they are divalent ions . ) N- represented by the following general formulas (3) and (4), respectively.
A long-chain acyl acidic amino acid or a salt thereof and an N-long acyl neutral amino acid or a salt thereof (B) are represented by the following formula: (Wherein, R ³ and R ⁴ each independently represent a group having 7 to 7 carbon atoms)
21 represents a linear or branched alkyl or alkenyl group; X represents the same acidic amino acid residue as described above;
Represents the same neutral amino acid residue as described above, M ³ and M ⁴ each independently represent hydrogen, an alkali metal, an alkaline earth metal, an organic amine, a basic amino acid or ammonium, and M ³ and M ⁴ represent When n is a monovalent ion, n = 1, and when it is a divalent ion, n = 2. ) (A) / (B) = 0.05 / 100 to 20/1 by weight ratio
A cleaning composition, characterized in that it contains at a ratio of 00. 2. The cleaning composition according to claim 1, wherein the acidic amino acid is glutamic acid or aspartic acid. (3) the neutral amino acid is glycine, alanine, β-
2. The composition according to claim 1, wherein the substance is alanine, sarcosine, N-methyl-β-alanine, valine, leucine, isoleucine, serine, threonine or phenylalanine.
Or the cleaning composition according to 2. 4. The cleaning composition according to claim 1, wherein the neutral amino acid is glycine, alanine, valine, leucine, isoleucine or threonine.