JPH0860185A - Detergent composition - Google Patents

Abstract

PURPOSE: To obtain a detergent composition, containing an N-acylthreonine salt having an acyl group which is a fatty acid residue of a specific number of carbon atoms and a higher fatty acid salt, hardly irritating the skin and hair and improved in foaming properties, retention of foams, foam quality and feeling of use. CONSTITUTION: This detergent composition is obtained by blending (A) an N- acylthreonine salt having an acyl group which is a fatty acid residue of an 8-22C fatty acid (e.g., sodium salt of N-lauroylthreonine) with (B) an 8-22C higher fatty acid salt (e.g., potassium laurate) and (C) at least one of an anionic surfactant such as a sulfonic acid type or a sulfate salt type, a cationic surfactant such as an aliphatic amine quaternary ammonim salt type or an aromatic quaternary ammonium salt type, a nonionic surfactant such as an alkylglycoside type or an aliphatic alkanolamide type and an amphoteric surfactant such as a betaine type or an imidazoline type. The resultant composition hardly irritates the skin and hair an is improved in retention of foams, foam quality and feeling of use.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a detergent composition in which an N-acyl threonine salt and a higher fatty acid salt are used in combination, and a detergent composition in which another surfactant is also used in combination. The detergent composition of the present invention is a detergent composition which is less irritating and safe, and has improved foam retention, foam quality, and feeling of use.

[0002]

2. Description of the Related Art Conventionally, detergent compositions mainly containing anionic surfactants such as shampoos, face-wash soaps and kitchen detergents include higher fatty acid salts, polyoxyethylene alkyl ether sulfates and alkylbenzene sulfonates. Is used. However, the detergents containing these anionic surfactants as the main ingredients have excellent detergency, but the feeling of squeaking during rinsing and the feeling of tightness after use are not sufficiently satisfactory. Not only that, but it also has a problem of irritation to the skin and damage to the hair.

Also, there is little irritation to the skin and hair,
N-acyl amino acid salts are known as surfactants having excellent detergency, and particularly N-acyl glutamate (“functional cosmetics” (published by CMC, page 275, 199).
0 years)), N-acyl sarcosine salt, N-acyl-N-
Methyl-β-alanine salt, N-acylmethyltaurine salt and the like are widely used as detergents. Other N-acyl amino acid salts have also been studied for quite a long time, and for natural amino acids and synthesizable amino acids, N-acyl amino acid salts have actually been studied.
Acyl amino acids have been synthesized and investigated. In particular, there are many reports regarding the results of studies on N-acyl derivatives of natural amino acids.

In recent years, it has been reported that the scum formed by N-acylglycine salt, N-acyl-β-alanine salt and the like with calcium in tap water has a good feeling (Japanese Patent Laid-Open No. 4-221607). Issue). However, regarding the N-acyl amino acid salt in this report, the foam performance was not sufficient in terms of foam retention, creamy property, foaming power, sliminess and the like.

Conventionally, there are few examples in which an N-long chain acylated product of threonine which is an oxyamino acid is used in a detergent composition. Japanese Examined Patent Publication No. 39-29444 describes a cleansing composition which does not roughen the skin, which is added and compounded in an amount of 1 to 50% by weight with respect to a mineral oil type or alcohol synthetic detergent. However, they are not sufficiently satisfactory in terms of usability such as foam quality and feeling of washing. JP-A-55-90594 discloses a detergent composition containing an N-acyl mixed amino acid salt, and it is described that the N-acyloxy amino acid salt has a protective effect on the skin and hair. There is. However, although this detergent composition is excellent in foaming and squeaky feeling at the time of rinsing, foam quality,
The feeling of washing up is not sufficient, and also when the acyl threonine salt is used alone, there are similar problems,
In addition, there is a problem that the retention of bubbles is poor.

[0006]

The object of the present invention is to provide N-
By providing a detergent composition utilizing an acyl threonine salt, which is excellent in detergency, and has improved foam retention, foam quality and feeling of use, the N-acyl threonine salt, which has been insufficient until now, can be obtained. To use it.

[0007]

Means for Solving the Problems As a result of intensive studies to achieve the above object, the present inventors have found that by using an N-acyl threonine salt and a higher fatty acid salt in combination, or in addition to both of them. It has been found that the above object can be achieved by using other surfactant together, and the present invention has been completed based on such knowledge.

That is, the present invention comprises (A) an N-acyl threonine salt whose acyl group is a fatty acid residue having 8 to 22 carbon atoms and (B) a higher fatty acid salt having 8 to 22 carbon atoms. And a detergent composition characterized by further containing other surfactant.

The present invention will be described in detail below.

The acyl group of the N-acyl threonine salt which is the component (A) of the detergent composition of the present invention is an acyl residue of a saturated or unsaturated fatty acid having 8 to 22 carbon atoms, for example, laurin. Acid, myristic acid, palmitic acid, stearic acid, stearic acid, oleic acid, and other single-component fatty acid acyl residues are listed.Other than these, coconut oil fatty acid, tallow fatty acid, hardened tallow fatty acid, castor oil fatty acid, olive oil fatty acid, palm. It may be an acyl residue of a naturally occurring mixed fatty acid such as an oil fatty acid or a synthetically obtained fatty acid (including a branched chain fatty acid). Preferred specific examples of the N-acyl threonine salt include N-lauroyl threonine, N-myristoyl threonine, N-palmitoyl threonine, N-stearoyl threonine, N-oleoyl threonine, N-cocoyl threonine, and N-hardened beef tallow fatty acid acyl threonine. Examples thereof include salts. The N-acyl threonine salt may be either an optically active substance or a racemic body.

The base component of the N-acyl threonine salt according to the present invention includes alkali metals such as sodium and potassium, alkaline earth metals such as magnesium and calcium, monoethanolamine, diethanolamine, triethanolamine and 2-amino-. Examples thereof include organic amines such as 2-methyl-1-propanol and 2-amino-2-methyl-1,3-propanediol, basic amino acids such as lysine, ornithine and arginine, and ammonia. You may use these base components in combination of 2 or more types.

The higher fatty acid salt which is the component (B) of the detergent composition of the present invention is a saturated or unsaturated linear or branched chain having 8 to 22 carbon atoms. Lauric acid, myristic acid, palmitic acid,
Examples thereof include stearic acid, coconut oil fatty acid, hardened beef tallow fatty acid, behenic acid, and oleic acid. Examples of the base component of these salts include alkali metals such as sodium and potassium, alkaline earth metals such as magnesium and calcium, monoethanolamine, diethanolamine, triethanolamine, 2-amino-2-methyl-1-propanol, 2 -Amino-2-methyl-1,3
Examples thereof include organic amines such as propanediol, basic amino acids such as lysine, ornithine and arginine, and ammonia. These base components may be used alone or in combination of two or more.

Component (A) in the detergent composition of the present invention
The blending ratio of the component (B) and the component (B) has a weight ratio of 99.5 / 0.5 to 0.5 / 99.5 depending on the performance of the intended product.
It is appropriately determined within the range. The content ratio of the component (B) is 0.
When it is less than 5, the amount of foam is sufficient, but the retention of foam is poor, the quality of the foam is rough, and there is a problem in that the feeling of washing up is slightly slimy. Further, when the blending ratio of the component (A) is less than 0.5, although the retention of the foam is sufficient, there is a problem in the usability such as a squeaky feeling during rinsing, and
It also has problems with irritation to hair and skin.

The total amount of (A) and (B) compounded in the detergent composition of the present invention varies depending on the formulation of the detergent composition, but is preferably 5 to 95% by weight.

In the present invention, by adding an appropriate amount of other surfactant as the third component in addition to the components (A) and (B), the foaming property and the foam retention are excellent, and the foam is fine and creamy. In addition, the present invention also provides a detergent composition in which the squeakiness during rinsing is reduced and the feeling of refreshing after washing is improved.

Examples of such surfactants include carboxylate type (excluding components (A) and (B)), sulfonate type, sulfate ester type anionic surfactants; fats Cationic surfactants of group amine quaternary ammonium salt type, aromatic quaternary ammonium salt type, mono long-chain acyl basic amino acid lower alkyl ester salt type, etc .;
Examples include nonionic surfactants such as alkyl glycoside type and aliphatic alkanolamide type; and zwitterionic surfactants such as betaine type and imidazoline type.

The various surfactants used as the third component of the detergent composition of the present invention will be described in detail below.

First, the anionic surfactant will be described.

Examples of carboxylate type anionic surfactants include N-acylaminocarboxylate type and ether carboxylate type surfactants.

In the N-acylaminocarboxylate type anionic surfactant, the acyl group has 8 to 8 carbon atoms.
22 is an acyl residue of a saturated or unsaturated fatty acid, and examples thereof include an acyl residue of a fatty acid having a single composition such as lauric acid, myristic acid, palmitic acid, stearic acid, and oleic acid, and coconut oil. It may be an acyl residue of a naturally occurring mixed fatty acid such as a fatty acid, a tallow fatty acid, a hardened tallow fatty acid, a castor oil fatty acid, an olive oil fatty acid, a palm oil fatty acid, or a synthetically obtained fatty acid (including a branched fatty acid). The aminocarboxylic acid bound to this is, for example, glutamic acid, aspartic acid, cysteic acid, acidic amino acids such as homocysteic acid, glycine, alanine, valine, leucine, isoleucine, phenylalanine, tryptophan, sarcosine, β-alanine, γ. -Aminobutyric acid, ε-aminocaproic acid, serine, homoserine, tyrosine, proline, hydroxyproline, neutral amino acids such as cystine, cysteine and methionine, and basic amino acids such as lysine, ornithine and arginine. These acylaminocarboxylic acids can be used in either optically active form or racemic form.

Examples of the ether carboxylate type anionic surfactants include polyoxyethylene alkyl ether acetate, polyglyceryl alkyl ether acetate, and the like. Specifically, for example, polyoxyethylene lauryl ether acetate, Examples thereof include polyoxyethylene tridecyl ether acetate.

As the sulfonate type anionic surfactant, for example, a sulfosuccinate type anionic surfactant,
Alkyl sulfonate type, ester sulfonate type, N
Examples thereof include monobasic acid type organic sulfonate type anionic surfactants such as acyl sulfonate type.

The above-mentioned sulfosuccinate-type anionic surfactant is a sulfosuccinate ester of a higher alcohol or its ethoxylate or a sulfosuccinate ester derived from a higher fatty acid amide represented by the following general formula (1) or (2). Alternatively, these salts may be mentioned.

[0024]

Embedded image In the above formula, R ¹ represents R ² —O— or R ³ —CONH— (wherein R ² represents a linear or branched alkyl or alkenyl group having 8 to 22 carbon atoms, and R ³ Represents a linear or branched alkyl or alkenyl group having 7 to 21 carbon atoms), and M ¹ and M ² are each independently selected from a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium and an organic ammonium. Represents a cation, and a represents an integer of 0 to 20.

Specifically, for example, undecylenoylamide ethyl sulfosuccinate, polyoxyethylene lauroyl ethanolamide ester sulfosuccinate, lauryl sulfosuccinate, lauryl polyoxyethylene sulfosuccinate, oleic amide sulfosuccinate, etc. Is mentioned.

The above monobasic acid type organic sulfonate type anionic surfactant has 8 to 22 carbon atoms.
A straight chain or branched chain alkyl or alkenyl sulfonate, an alkylbenzene sulfonate having a straight chain or branched chain alkyl group having 10 to 16 carbon atoms, and an acyl group having a straight chain chain having 8 to 22 carbon atoms or N-acyl sulfonate or O- which is a branched saturated or unsaturated fatty acid residue
It is an acyl sulfonate.

Specific examples thereof include alkane sulfonate, α-olefin sulfonate, alkylbenzene sulfonate, acylmethyl taurine salt, isethionic acid fatty acid ester salt, α-sulfonated fatty acid ester salt and the like.

Examples of the sulfate ester type anionic surfactants include surfactants such as alkyl sulfates and ether sulfates.

The above-mentioned alkylsulfate type anionic surfactant is a salt of an ester of a straight chain or branched chain saturated or unsaturated higher alcohol having 8 to 22 carbon atoms and sulfuric acid,
Examples thereof include lauryl sulfate, myristyl sulfate, and oleyl sulfate.

The ether sulfate type anionic surfactant is an alkylene oxide addition type of the alkyl sulfate salt, and examples thereof include polyoxyethylene lauryl ether sulfate, polyoxyethylene myristyl ether sulfate and polyoxyethylene. Examples include oleoyl ether sulfate.

As the base component of these various anionic surfactants, alkali metals such as sodium and potassium,
Alkaline earth metals such as magnesium and calcium, organic amines such as monoethanolamine, diethanolamine, triethanolamine, 2-amino-2-methyl-1-propanol and 2-amino-2-methyl-1,3-propanediol , Basic amino acids such as lysine ornithine and arginine, and ammonia. These base components may be used alone or in combination of two or more.

The blending ratio of the above various anionic surfactants is appropriately determined according to the performance of the intended product.
Usually 1 / of the total weight of component (A) and component (B)
It is mixed in the range of 15 to 15/1.

Next, the cationic surfactant used as the third component of the detergent composition of the present invention will be described.

The aliphatic amine quaternary ammonium salt is, for example, a linear mono- or dialkyl quaternary ammonium salt represented by the following general formula (3).

[0035]

Embedded image In the above formula, one or two of R ^{4 to} R ⁷ represent a long-chain alkyl group having 8 to 24 carbon atoms, and the rest are 1 carbon atoms.
~ 3 alkyl group or hydroxyalkyl group, and X represents a halogen atom or an alkylsulfate group having 1 or 2 carbon atoms.

Preferred specific examples of such an ammonium salt include lauryl trimethyl ammonium chloride, myristyl trimethyl ammonium chloride, palmityl trimethyl ammonium chloride, stearyl trimethyl ammonium chloride, oleoyl trimethyl ammonium chloride, cetyl trimethyl ammonium chloride, cetyl trimethyl ammonium. Methylsulfate, eicosyltrimethylammonium chloride, mono long-chain alkyl quaternary ammonium salts such as behenyltrimethylammonium chloride, and dipalmityldimethylammonium chloride, distearyldimethylammonium chloride, dihydrogenated tallow alkyldimethylammonium bromide, dihydrogen. Added tallow alkyldi Di-long-chain alkyl quaternary ammonium salts, such as chill ammonium methylsulfate can be mentioned, respectively. These are used alone or in combination of two or more.

Aromatic quaternary ammonium salts are, for example,
It is a benzalkonium salt represented by the following general formula (4).

[0038]

[Chemical 3] In the above formula, R ⁸ represents an alkyl group having 8 to 24 carbon atoms, and Y represents a halogen atom or an alkylsulfate group having 1 or 2 carbon atoms.

Specific preferred examples of the penzalkonium salt include lauryldimethylbenzylammonium chloride and stearyldimethylbenzylammonium chloride. These may be used alone or in combination of two or more.

As the mono long-chain acyl basic amino acid lower alkyl ester salt type cationic surfactant, an acyl group is an acyl residue of a fatty acid having 8 to 22 carbon atoms, and a lauroyl group, a cocoyl group, a myristoyl group, Examples thereof include palmitoyl group, stearoyl group and oleoyl group. The basic amino acid bound to this is, for example, a natural amino acid such as lysine, ornithine, arginine, etc., and can be used regardless of its optically active form or racemic form. In addition, as salts of mono long-chain acyl basic amino acid lower alkyl ester salts, for example,
Inorganic acid salts such as hydrochloride and sulfate, and organic acid salts such as acetate, tartrate, citrate, p-toluenesulfonate, fatty acid salt, acidic amino acid salt and pyroglutamate can be adopted. . Suitable lower alkyl ester components are methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl and octyl esters.

These benzalkonium salts can be used alone or in combination of two or more kinds.

The blending amount of each of the above cationic surfactants is appropriately determined according to the performance of the intended product.
Usually, the proportion of the detergent composition is 0.01 to 5.0% by weight.

Next, the nonionic surfactant used as the third component of the detergent composition of the present invention will be described.

Examples of the alkyl glycoside include those represented by the following general formula (5).

[0045]

[Chemical 4] In the above formula, R ⁹ is a linear or branched chain containing 8 carbon atoms.
~ 18 alkyl group or alkenyl group, R ¹⁰ represents an alkylene group having 2 to 4 carbon atoms, G is a residue derived from a reducing sugar having 5 to 6 carbon atoms, and b
Has an average value of 0 to 5, and c has an average value of 1 to 1.
0.

In the above general formula (5), the average value of c is 1
When it is larger, that is, when a sugar chain having two or more sugars is used as a hydrophilic group, the sugar chain has a binding mode of 1-2, 1-3, 1-4 or 1-6 bond, and further α- or β-pyranoside or furanoside. It is possible to include conjugation or any mixture of these with mixed conjugation modes. The value of b is preferably 0 to 2 from the viewpoint of water solubility and crystallinity,
And the preferable average value of c is about 1 from the viewpoint of the foam increasing effect.
It is 3.

R ⁹ is a linear or branched alkyl group having 8 to 18 carbon atoms, an alkenyl group or an alkylphenyl group, and preferably 10 to 10 carbon atoms in view of solubility, foaming property and detergency. It is 14. R ¹⁰ is an alkylene group having 2 to 4 carbon atoms, and a preferable value is 2 to 3 in terms of water solubility. Furthermore, the structure of G is determined by a monosaccharide or a raw material of two or more sugars. As the raw material of G, monosaccharides include glucose, galactose, xylose, mannose, lyxose, arabinose and the like, and a mixture thereof. In the case of two or more sugars, maltose, xylobiose, isomaltose, cellobiose, gentibiose, lactose, sucrose, nigerose, turanose, raffinose, gentianose, melezitose and the like, and mixtures thereof can be mentioned. Of these, preferred monosaccharide raw materials are glucose and fructose because of their availability and low cost, and maltose and sucrose for two or more sugars.

These alkyl glycosides are used alone or in combination of two or more kinds.

As the aliphatic alkanolamide, for example, those represented by the following general formula (6) can be exemplified.

[0050]

[Chemical 5] In the above formula, R ¹¹ represents an alkyl group having 8 to 20 carbon atoms, R ¹² and R ¹³ are the same or different, and are a hydrogen atom, a hydroxyalkyl group having 1 to 3 carbon atoms, or
_{(C 2 H 4 O) d} H group (wherein, d represents an integer of 2-4) shows a.

In the above formula, the number of carbon atoms of the alkyl group represented by R ¹¹ is preferably 12 to 18, and the combination of R ¹² and R ¹³ is a hydroxyalkyl group, particularly a hydroxyethyl group. , And one is a hydroxyalkyl group, particularly a hydroxyethyl group, and the other is a hydrogen atom.

Specific examples of these aliphatic alkanolamides include coconut oil fatty acid monoethanolamide, coconut oil fatty acid diethanolamide, lauric acid monoethanolamide, and lauric acid diethanolamide. These are used alone or in combination of two or more.

The mixing ratio of the above nonionic surfactant is
It can be appropriately determined according to the performance of the intended product, but is usually 1/1 in the case of the alkyl glycoside represented by the general formula (5) based on the total weight of the components (A) and (B).
5 to 15/1, and in the case of the aliphatic alkanolamide represented by the general formula (6), it is mixed in the range of 1/100 to 1/2.

The zwitterionic surfactant used as the third component of the detergent composition of the present invention will be described.

Examples of betaine-type zwitterionic surfactants include carbobetaine-type surfactants, amidobetaine-type surfactants, sulfobetaine-type surfactants, hydroxysulfobetaine-type surfactants, and amidosulfobetaine-type surfactants. Examples of the agent include surfactants such as agents and phosphobetaine surfactants.

In other words, such a betaine-type surfactant is, for example, an alkyl group having 8 to 24 carbon atoms,
Betaine type surfactants having an alkenyl group or an acyl group, more specifically palm oil alkyldimethylaminoacetic acid betaine, palm oil fatty acid amide propyldimethylaminoacetic acid betaine, stearyldihydroxyethylaminoacetic acid betaine, lauryl hydroxysulfobetaine, Examples thereof include lauryl sulfobetaine and lauryl phosphobetaine. These betaine-type surfactants can be used alone or in combination of two or more kinds.

As the imidazoline type amphoteric surfactant,
For example, 2-having an alkyl group having 8 to 22 carbon atoms
Alkyl-N-carboxymethyl-N-hydroxyethyl imidazolinium betaine, 2-alkyl-N-carboxyethyl-N-hydroxyethyl imidazolinium betaine, 2-alkyl-N-sodium carboxymethyl-N-carboxymethyloxy Examples thereof include ethyl imidazolinium betaine. These may be used alone or in combination of two or more.

The mixing ratio of the above-mentioned various zwitterionic surfactants can be appropriately determined according to the performance of the intended product, and is usually 1/100 with respect to the total weight of the component (A) and the component (B).
It is mixed in the range of 15 to 15/1.

The total amount of the component (A), the component (B) and the third component in the detergent composition of the present invention varies depending on the formulation of the detergent composition, but the proportion in the detergent composition is not limited. It is preferably 5 to 95% by weight.

There is no particular limitation on the dosage form of the cleaning composition of the present invention as a cleaning agent, and any dosage form such as liquid, paste, gel, solid or powder can be used.
The pH of these detergents is 5-9, preferably 6-8. The detergent composition of the present invention using the N-acyl threonine salt is different from those using other N-acyl neutral amino acid salts such as N-acyl alanine salt and N-acyl glycine salt even at pH 7 or lower. Since the performance does not deteriorate, it is possible to make the skin less irritating.

Other conventional components in the detergent composition can be added to the detergent composition of the present invention within a range that does not impair the effects of the present invention. Other commonly used ingredients in the detergent composition, diglycerin, octanediol, maltitol, diethylene glycol, polyethylene glycol, ethylene glycol, propylene glycol, dipropylene glycol, polypropylene glycol, isopropylene glycol, pentaerythritol, glucose, trehalose, Fructose, 1,
Polyhydric alcohols such as 3-butylene glycol, glycerin, and sorbitol; humectants such as sodium DL-pyrrolidone carboxylate and sodium lactate; glyceryl monostearate, sorbitan monopalmitate, sorbitan monostearate, sorbitan monooleate, monosesqui Sorbitan oleate, sorbitan monolaurate, polyglycerin monostearate, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, polyoxyethylene sorbitan monolaurate, diglycerin monostearate ester, polyethylene glycol monostearate, monooleic acid Polyethylene glycol, polyethylene glycol monolaurate, polyethylene glycol distearate, polyethylene dioleate Glycol, polyethylene glycol dilaurate, polyoxyethylene oleyl ether, polyoxyethylene lauryl ether, polyoxyethylene nonyl phenyl ether, polyoxyethylene octyl phenyl ether, polyoxyethylene sorbit beeswax, polyoxyethylene sorbitan monostearate, monooleic acid Emulsifiers such as polyoxyethylene sorbitan, polyoxyethylene sorbitan monolaurate, ethylene glycol monostearate; avocado oil, almond oil, olive oil, cacao oil, beef tallow,
Sesame oil, wheat germ oil, safflower oil, shea butter, turtle oil, camellia oil, persic oil, castor oil, grape oil, macadamia nut oil, mink oil, egg yolk oil, oak, coconut oil, rosehip oil, soybean oil, cottonseed oil , Triglycerides such as hydrogenated oil; waxes such as orange luffy oil, carnauba wax, candelilla wax, whale wax, jojoba oil, monta wax, beeswax, lanolin; liquid paraffin, paraffin, petrolatum, ceresin, microcrystalline wax, solid paraffin, squalane, Hydrocarbons such as olefin oligomers; lauryl alcohol, cetyl alcohol, cetostearyl alcohol, stearyl alcohol, oleyl alcohol, behenyl alcohol, lanolin alcohol, hydrogenated lanolin alcohol, hexyldecanoe , Octyldodecanol,
Higher alcohols such as isostearyl alcohol, jojoba alcohol and decyltetradecanol; sterols such as cholesterol, dihydroxycholesterol and phytosterol; oleyl oleate, ethyl linoleate, isopropyl myristate, isopropyl lanolate, hexyl laurate, myristic acid Myristyl, cetyl myristate, isopropyl palmitate,
Stearyl stearate, octyldodecyl myristate, decyl oleate, octyldodecyl oleate,
Hexyldecyl dimethyl octanoate, cetyl isooctanoate, cetyl palmitate, glyceryl trimyristate, glyceryl tri (capryl / capric acid), propylene glycol dioleate, glyceryl triisostearate, glyceryl triisooctanoate, cetyl lactate, myristyl lactate, apple Acid diisostearyl, cholesteryl stearate, cholesteryl isostearate, cholesteryl 12-hydroxystearate, glyceryl oleate pyroglutamate, di (cholesterol, behenyl, octyldodecyl alcohol) -N-lauroyl-L-glutamic acid ester, 2-ethylhexane Esters such as acid triglyceride; methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, ethyl Cellulose, nitrocellulose,
Sodium carboxymethyl cellulose, carboxy vinyl polymer, polyvinyl methyl ether, polyvinyl alcohol, crystalline cellulose, gum arabic, tragacanth gum, guar gum, locust bean gum, karaya gum, iris moss, quince seed, gelatin, shellac, rosin, casein, sodium alginate, ester gum. Polymers such as polyvinylpyrrolidone, sodium polyacrylate, polyamide resin, silicone oil, chitin, partially deacetylated chitin, hydrolyzed collagen, polyaspartic acid, sodium polyglutamate, xanthan gum; cresol derivatives, paraben derivatives, etc. Antifungal agents, anti-inflammatory agents, crude drugs, vitamins, hair growth promoters, whitening agents, UV absorbers, hormones and other drugs or active ingredients; pH Seizai, feel improvers, superfatting agents, inorganic salts, amino acids, pearling agents, viscosity modifiers, perfumes, dyes,
Cosmetic materials such as softeners and emollients; ethylenediaminetetraacetic acid, citric acid, maleic acid, succinic acid, ascorbic acid, kephalin, gluconic acid, saccharic acid, hexametaphosphoric acid, 1-hydroxyethane-1,1-diphosphonic acid, Chelating agents such as dihydroxyethylglycine or salts thereof; placenta extract, licorice extract,
Hamamelis water, loofah water, elastin, aloe extract,
Examples include animal or plant extract components such as chamomile extract.

[0062]

The present invention will be described in more detail with reference to the following examples. Production Example 1 (N-acyl sulphonine salt) N-lauroyl-L-threonine is disclosed in Japanese Patent Publication No.
It was synthesized by the method described in Japanese Patent No. Highly pure N-lauroyl-L is obtained by removing the by-product impurities by recrystallization.
-Threonine is obtained and neutralized with potassium hydroxide or triethanolamine to obtain N-lauroyl-L-threonine potassium salt and N-lauroyl-L-threonine triethanolamine salt, respectively, which are used in the following examples. used.

(A) Comparative Examples 1 to 4 and Examples 1 to 6 (evaluation of foam retention and creamy property and sensory evaluation): N-lauroyl-L-threonine potassium salt obtained in Production Example 1 (hereinafter, lauroyl) Threonine K may be abbreviated) and N-lauroyl-L-threonine triethanolamine salt (hereinafter sometimes abbreviated as lauroyl threonine TEA) and potassium laurate (hereinafter abbreviated as laurate K). And lauric acid triethanolamine salt (hereinafter sometimes abbreviated as TEA lauric acid) at various ratios (weight ratios) shown in Table 3 below, and the total amount of the surfactant in distilled water is taken. Concentration is 0.5
An aqueous solution with a concentration of wt% was prepared. For each aqueous solution,
Taking 50 g of the mixture, stirring the mixture with a 350 ml home-use mixer (manufactured by Iwatani Sangyo Co., Ltd.), and measuring the volume (ml) of the foam after leaving it for 1 minute and 10 minutes to determine the foam amount and foam retention ( The foam retention rate) was evaluated. The creamy property was evaluated by placing bubbles immediately after foaming on a slide glass, applying a cover glass, and observing with a microscope. Table 1 below shows the evaluation criteria for each evaluation item.

[0064]

[Table 1] In addition, as a cleaning agent for hair and body, a sensory evaluation of 10 males and 10 females gave the feeling of cleaning as a foam,
The squeaky feeling and the refreshing feeling were evaluated, and a comprehensive evaluation was performed. In the sensory evaluation, a hand-washing test and a hair-washing test were carried out for each aqueous solution by taking a surfactant in the proportions shown in Table 3 and preparing an aqueous solution having a concentration of 30% and 15% with distilled water. The evaluation criteria for each evaluation item are shown in Table 2 below. In the comprehensive evaluation, it was found that a score of 3 or less is insufficient for actual use, and a score of 4 or more is sufficiently satisfied for actual use.

[0065]

[Table 2] The evaluation results are also shown in Table 3 below.

[0066]

[Table 3] As can be seen from Table 3, although the N-acyl threonine salt alone is not sufficient in terms of foam retention and foam creaminess, by adding the higher fatty acid salt to the N-acyl threonine salt, The foam retention rate and foam creaminess are improved. Further, the feeling of use such as the feel of the foam, the squeaky feeling and the refreshing feeling are also improved by the synergistic effect of both.

(B) Comparative Examples 5-24 and Examples 7-7
9: N-lauroyl threonine salt, higher fatty acid salt, and other surfactants as the third component, anionic surfactants in Table 4, cationic surfactants in Table 5 and nonionic surfactants. Was carried out in various proportions shown in Table 6 and the zwitterionic surfactant in Table 7 and evaluated in the same manner as in the above Examples. The evaluation results are also shown in Tables 4 to 7.

[0068]

[Table 4]

[0069]

[Table 5]

[0070]

[Table 6]

[0071]

[Table 7]

[0072]

[Table 8]

[0073]

[Table 9]

[0074]

[Table 10] As can be seen from the results of Tables 4 to 7, in the three-component system containing the N-lauroyl threonine salt, the higher fatty acid salt and the other surfactant, the foam performance is improved as compared with the other two-component system. , The usability has also been improved. The cleaning composition of the present invention has a total evaluation of 5 or more, including 5 points, and is excellent in actual use.

(C) Examples 80 to 97: The following 8 to 25
The components shown in the table were mixed at the compounding ratio (weight ratio) shown in each table, and various detergent compositions were produced by a conventional method. These detergent compositions were excellent in foam amount, foam retention and creaminess of foam, and were also excellent in usability.

[0076]

[Table 11]

[0077]

[Table 12]

[0078]

[Table 13]

[0079]

[Table 14]

[0080]

[Table 15]

[0081]

[Table 16]

[0082]

[Table 17]

[0083]

[Table 18]

[0084]

[Table 19]

[0085]

[Table 20]

[0086]

[Table 21]

[0087]

[Table 22]

[0088]

[Table 23]

[0089]

[Table 24]

[0090]

[Table 25]

[0091]

[Table 26] This facial cleansing foam retained a stable form even after being stored for a long period of time.

[0092]

[Table 27]

[0093]

[Table 28]

[0094]

EFFECT OF THE INVENTION The cleaning composition of the present invention is excellent in foaming during cleaning, is less irritating to skin and hair, is excellent in retaining foam, is creamy in foam quality, and has a squeaky feeling during rinsing. It is refreshing and has excellent usability. Further, it has become possible to utilize an N-acyl threonine salt that has not been sufficiently utilized as a surfactant.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Manabu Kitazawa 1-1 Suzuki-cho, Kawasaki-ku, Kawasaki-shi, Kanagawa Ajinomoto Co., Inc. Central Research Laboratory

Claims (5)

[Claims] 1. An N-acyl threonine salt in which (A) an acyl group is a fatty acid residue having 8 to 22 carbon atoms, and (B) a higher fatty acid salt having 8 to 22 carbon atoms. Cleaning composition. 2. In addition to the component (A) and the component (B), a carboxylate type (excluding the component (A) and the component (B)), a sulfonate type and a sulfate ester type anionic interface. The cleaning composition according to claim 1, which contains at least one selected from the group consisting of activators. 3. In addition to component (A) and component (B), aliphatic amine quaternary ammonium salt type, aromatic quaternary ammonium salt type and mono long-chain acyl basic amino acid lower alkyl ester salt type positive The cleaning composition according to claim 1, which contains at least one selected from the group consisting of ionic surfactants. 4. At least one selected from the group consisting of alkyl glycoside type and aliphatic alkanolamide type nonionic surfactants in addition to the components (A) and (B).
The cleaning composition according to claim 1, further comprising a seed. 5. The composition according to claim 1, further comprising, in addition to the components (A) and (B), at least one selected from the group consisting of betaine-type and imidazoline-type zwitterionic surfactants. Cleaning composition.