JPH0987666A - Cleansing agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a cleansing agent composition having excellent frothing property, quickly eliminating the foam and giving good feeling in use. SOLUTION: This composition contains (A) an N-long chain acyl dipeptide expressed by the general formula R<1> CO[NH(CH2 )m CO]2 OM<1> and (B) an N-long chain acyl taurine expressed by the general formula R<2> CONHCH2 CH2 SO3 M<2> , (R<1> and R<2> are each a 7-23C straight or branched-chain alkyl or alkenyl; M<1> and M<2> are each H, an alkali metal, ammonium, an alkylammonium, an alkanolammonium or a basic amino acid residue), at a weight ratio (A/B) of 0.5/100 to 10/100.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a detergent composition, and more particularly in the washing of hair or skin,
The present invention relates to a detergent composition which is excellent in foam durability and ease of rinsing.

[0002]

2. Description of the Related Art Generally, a general-purpose anionic surfactant is used as a main component of a detergent composition, a higher fatty acid is used for a skin detergent, and a higher alcohol sulfate ester salt is used for a hair detergent. Poly (ethylene ethylene higher alcohol sulfate ester salt) and the like are mainly used. However, these general-purpose activators have various problems. For example, a cleaning agent using higher fatty acid is used for scum (higher fatty acid C
(a salt) is liable to be generated, and foaming and foam persistence are not sufficient, and higher alcohol sulfate ester salts have poor foaming and poor lubricity of washed hair.

Inorganic or organic salts of N-long-chain acylamino acids have recently been widely used because they have a surface-active action and a bactericidal action. It is known that a detergent containing these has a mild action on the skin and an excellent detergency. For example, JP-A-50-150701 and JP-A-63-2962 disclose liquid detergents based on N-long chain acylamino acid surfactants as mild surfactants. In addition, Japanese Patent Laid-Open No.
No. 3-132007 discloses an improved solid detergent with the addition of N-long chain acyl neutral amino acids.

[0004]

However, the tertiary amide type N-long chain acylamino acid salts used in the detergents described in these publications are excellent in water solubility, but have poor foam breakage,
There is a problem with the feeling of sliminess. In addition, Japanese Unexamined Patent Publication
No. 2 as a mild surfactant in JP-A-3-2962
Although secondary amide type N-long chain acylamino acid salts are described in Examples, sufficient effects cannot be obtained in the examples, and only secondary amide type N-long chain acylamino acid salts are mainly used. Foaming, foam lasting,
Furthermore, it is difficult to obtain a satisfactory feeling in use. Furthermore, in recent years, as an improved method of these, Japanese Patent Laid-Open No.
No. 078693 discloses a detergent composition containing a specific N-long-chain acyl dipeptide and a specific N-long-chain acylamino acid, but this is also not sufficiently satisfactory in terms of foamability. It was Therefore, it is an object of the present invention to provide a detergent composition which has excellent foaming upon cleaning, has long-lasting foam, and has good defoaming during rinsing, and is excellent in usability.

[0005]

DISCLOSURE OF THE INVENTION As a result of earnestly studying such a situation, the present inventors have found that N represented by the following general formula 1
A detergent composition containing a combination of a long-chain acyl dipeptide and an N-long-chain acyl taurine represented by the general formula 2 in a specific ratio has excellent foaming during cleaning, has long-lasting foam, and is rinsed. It was found that the foaming at the time was good and the feeling of use was excellent, and the present invention was completed.

That is, the present invention provides (A) general formula (1)
The N-long-chain acyl dipeptide represented by the formula (B) and the N-long-chain acyl taurine represented by the formula (2) (A) / (B) = 0.5 / 100 to 10 / by weight ratio. The present invention provides a detergent composition containing 100 parts by weight.

[0007]

Embedded image R ¹ CO [NH (CH ₂ ) mCO] ₂ OM ¹ (1) (wherein R ¹ represents a linear or branched alkyl or alkenyl group having 7 to 23 carbon atoms, and m is 1 or 2 and M ¹ represents a hydrogen atom, an alkali metal, ammonium, alkylammonium, alkanolammonium or a basic amino acid.) (B) N-long chain represented by the following general formula (2) Acyl taurine

Embedded image R ² CONHCH ₂ CH ₂ SO ₃ M ² (2) (In the formula, R ² represents a linear or branched alkyl or alkenyl group having 7 to 23 carbon atoms, M ² represents a hydrogen atom,
Alkali metal, ammonium, alkyl ammonium,
Indicates an alkanol ammonium or basic amino acid. )

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION N- represented by the above general formula (2)
The long-chain acyl taurine (B) is described in the Schotten-Baumann method of reacting an alkaline aqueous solution of taurine with a fatty acid halide and its improved inventions in Japanese Patent Publication Nos. 46-8685 and 51-38681. It can be produced by a known method such as a method of reacting a fatty acid halide with an aqueous amino acid solution containing such a hydrophilic solvent in the presence of an alkali.

Further, N- represented by the above general formula (1)
The long-chain acyl dipeptide (A) is obtained, for example, by converting N-long-chain acyl-β-alanine into an acid halide with a halogenating agent such as phosphorus trichloride, thionyl chloride or phosgene,
Condensation reaction with β-alanine or N-long chain acyl-β
It can be produced by converting alanine into an acid anhydride and then reacting it with β-alanine.

The total content of the N-long chain acyl dipeptide (A) and the N-long chain acyl taurine (B) in the detergent composition of the present invention is 5% by weight or more, preferably 10%.
-80% by weight or more. If the total content is less than 5%, a satisfactory feeling of use cannot be obtained.

The weight ratio of the compound (A) to the compound (B) is 0.5 / 100 to 10/100, preferably 1/100 to 5/100. 0.5
When it is less than 100/100, or when it exceeds 10/100, foam stability and usability are poor.

The detergent composition of the present invention is suitable for kitchen detergents, hard surface detergents, shampoos, facial cleansers, personal detergents, etc. depending on the purpose of use. In addition, auxiliary agents such as fragrances, colorants, moisturizers, builders, hydrotropes, and preservatives which are usually used in detergents can be added to the detergent composition. Further, various anionic surfactants, cationic surfactants, amphoteric surfactants and nonionic surfactants may be added for the purpose of adjusting foaming and detergency. These include fatty acid soap, higher alcohol sulfate ester salt, polyoxyethylene higher alcohol sulfate ester salt, higher alcohol phosphate ester and its salt, polyoxyethylene higher phosphate ester and salt, polyoxyethylene higher fatty acid phosphate Esters and salts thereof, sulfonated higher fatty acid salts, sulfonated higher fatty acid alcohol ester salts, isethionic acid higher fatty acid ester salts, α-sulfo higher fatty acid ester salts, higher alkyldimethylbenzylammonium salts, higher alkylamines, higher alkyltrimethylammonium salts Higher fatty acid diethanolamide and its ethylene oxide or propylene oxide adduct, higher fatty acid monoethanolamide and its ethylene oxide or propylene oxide adduct, Polyoxyethylene higher fatty acid monoethanolamide phosphoric acid ester, N- long-chain acyl acidic amino acid salt, N
-N-long-chain acyl amino acid salts such as long-chain acyl-sarcosine salts and N-long-chain acyl-β-alanine salts, higher alkylaminopropionate salts of laurylaminopropionate,
Higher alkyliminodiacetic acid salts such as lauryliminodiacetic acid salt, higher alkyldimethylbetaine, higher alkyldihydroxyethylbetaine, N-alkyloyl-N'-
Examples include, but are not limited to, amine amide compounds such as (2-hydroxyethyl) -N'-carboxymethylethylenediamine salt and N-alkyloyl-N- (2-hydroxyethyl) -N ', N'-biscarboxymethylethylenediamine. It will not be done.

The detergent composition of the present invention has a foaming and foam-continuing property as compared with conventional detergents using higher fatty acid alkali salt, higher alcohol sulfate ester salt, and polyoxyethylene higher alcohol sulfate ester salt as a main base. Furthermore, it is excellent in defoaming, and is extremely excellent in terms of usability without any squeaky feeling or slimy feeling felt so far.

[0014]

Next, the present invention will be described in detail with reference to examples. However, the present invention is not limited to the examples shown below.

Examples 1 and 2 and Comparative Examples 1 to 4 A detergent composition was prepared from the blending composition shown in Table 1, and the amount of foaming, foam breakage, and feeling of use were evaluated based on the following methods.

(Measurement of Bubbling Amount) A 20-fold diluted aqueous solution was prepared by imitating each cleaning composition, and 100 ml of this solution was prepared.
(Liquid temperature 40 ° C.) is poured into a cylinder with a memory. Next, a stirring blade was placed in the above solution, and 3 minutes from the start of stirring.
The volume (ml) of the foam generated after 0 seconds was measured and used as the foaming amount. Further, as the measurement of the foam persistence, the residual amount of foaming was measured 2 minutes after the stirring was stopped. The rotation speed of the stirring blade was 1000 rpm, and it was reversed every 5 seconds.

(Evaluation of Feel of Use) With respect to each detergent composition, panelists of 10 men and women washed the skin and the hair, and sensory evaluation was carried out. For evaluation, an average value was calculated according to the following criteria, and an average value of 4.5 or more was very good (⊚), a case of 3.5 to 4.4 was good (∘),
The case of 2.5 to 3.4 was judged to be normal (Δ), and the case of 2.4 or less was judged to be defective (x).

5: Defoaming or slipping is good 4: Defoaming or slipping is slightly good 3: Foaming or slipping is normal 2: Foaming or slipping is slightly bad 1: Foaming or slipping is bad

[0019]

[Table 1]

From the results shown in Table 1, it is clear that the detergent composition of the present invention is excellent in foaming, foam stability and foam breakage, and has no squeaky feeling or slimy feeling. is there.

[0021]

The detergent composition of the present invention is excellent in foaming and its stability in washing hair or skin, and also has a good feeling in use, that is, slippage after rinsing and rinsing, and drying after drying, and squeaky feeling. It is an excellent product with no slimy feel.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location C11D 1:52)

Claims (1)

[Claims] 1. The following components (A) and (B) (A) N-long chain acyl dipeptide represented by the following general formula (1): embedded image R ¹ CO [NH (CH ₂ ) mCO] ₂ OM ¹ (1) (In the formula, R ¹ represents a linear or branched alkyl group or alkenyl group having 7 to 23 carbon atoms, m represents a number of 1 or 2, and M ¹ represents a hydrogen atom or an alkali. A metal, ammonium, alkylammonium, alkanolammonium or basic amino acid is shown.) (B) N-long chain acyl taurine represented by the following general formula (2): embedded image R ² CONHCH ₂ CH ₂ SO ₃ M ² (2) (In the formula, R ² represents a linear or branched alkyl group or alkenyl group having 7 to 23 carbon atoms, M ² is a hydrogen atom,
Alkali metal, ammonium, alkyl ammonium,
Indicates an alkanol ammonium or basic amino acid. ) In a weight ratio of (A) / (B) = 0.5 / 100 to
A cleaning composition comprising 10/100.