JP2000038593A - Detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a detergent compsn. which gives wet feeling after washing, extends well when applied, and does not give a feeling of glow when used in massage. SOLUTION: This compsn. contains following component (A) and (B): (A) anionic surfactants in not less than 0.1 wt.% but less than 5 wt.% containing (a1) an anion surfactant contg. a nitrogen atom in the basic framework: not less than 30 wt.% and (a2) an anion surfactant other than (a1); and (B) polyols in 15-65 wt.%. The wt. ratio of component (A)/(B) is 1/2-1/200.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-irritant detergent composition which can provide a moist wash after washing, has good elongation during application, and has no hot flash during massage.

[0002]

2. Description of the Related Art Conventionally, anionic surfactants such as alkyl sulfates and sulfonates have been widely used in detergent compositions for skin, hair and the like because of their high foaming properties. However, when these anionic surfactants are blended in a large amount, although a refreshing feel can be obtained after washing, they have drawbacks such as causing a firm feeling on the skin and poor lubricity.

[0003] Therefore, for the purpose of remedying these drawbacks, a humectant such as a polyhydric alcohol is blended in a detergent base material containing an anionic surfactant as a main component in an amount of 25 to 70% by weight (hereinafter%). Detergent that suppresses skin irritation
-125797).

However, when a large amount of such a humectant is added, the washing effect, the foaming power, the elongation during application and the feeling of use such as hot flashes during massage are reduced, and the temperature and pH are easily affected. There is also a problem in terms of stability, the formulation is liable to be restricted, and it has been difficult to obtain a sufficiently satisfactory cleaning agent.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a skin and hair cleansing composition which can provide a moist wash after washing, has good stretch upon application, and has no hot flash during massage. Is to provide.

[0006]

The present inventors have found that if a small amount of an anionic surfactant having a specific structure and a large amount of a polyol are used in combination in a specific ratio, a moist and moist wash after washing can be obtained. It has been found that a cleaning composition having good elongation at the time of application and no hot flash at the time of massage can be obtained.

That is, the present invention provides the following components (A) and (B): (A) anionic surfactant 0.1% by weight or more and less than 5% by weight In component (A), (a1): basic skeleton 30% by weight or more of an anionic surfactant having a nitrogen atom therein, (a2): an anionic surfactant other than (a1), (B) 15 to 65% by weight of polyols, and components (A) and ( The weight ratio of (B) is (A) /
(B) = Provide a cleaning composition wherein 1/2 to 1/200.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The (a1) anionic surfactant having a nitrogen atom in the basic skeleton contained in the component (A) used in the present invention refers to a nitrogen atom in the basic skeleton of a molecule instead of a counter ion portion. And, for example, the following (i)
To (v) are preferred.

(I) N-acyl-N-carboxyethylglycine salt. For example, the following general formula (1)

[0010]

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(Wherein R ¹ represents a linear or branched alkyl, alkenyl or hydroxyalkyl group having 7 to 21 carbon atoms, M ¹ and M ² are the same or different and each represents a hydrogen atom, an alkali metal (sodium) , Potassium, etc.), alkaline earth metals (calcium, magnesium, etc.), basic amino acids (arginine, lysine, histidine, etc.), ammonium, alkanolamines having 1 to 3 alkanol groups having 2 or 3 carbon atoms) The glycine derivative represented or its salt is mentioned, Of these, N-lauroyl-N-carboxyethylglycine sodium salt and N-lauroyl-N-carboxyethylglycine arginine salt are preferable.

(Ii) N-acyl-β-amino acid surfactants. For example, the following general formula (2)

[0013]

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(Wherein, R ² represents a linear or branched alkyl or alkenyl group having 7 to 21 carbon atoms, and M ¹ is the same as described above) or an N-acyl-β-alanine or a derivative thereof. Salts are mentioned, and among these, N-lauroyl-β-alanine arginine, N-lauroyl-β-alanine potassium, and N-lauroyl-β-alanine sodium are preferable.

(Iii) N-acyl-α-amino acid surfactants. For example, the following general formula (3)

[0016]

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[0017] (wherein, R ³ represents a linear or branched alkyl or alkenyl group of 7 to 21 carbon atoms, M ¹ and M
² is the same as above. And N-acylglutamic acid or a salt thereof, of which sodium N-lauroylglutamate is preferred.

(Iv) N-acyl taurine type surfactant. For example, the following general formula (4)

[0019]

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Wherein R ⁴ is a linear or branched alkyl or alkenyl group having 7 to 21 carbon atoms, and R ⁵ is a hydrogen atom or an alkyl group which may have a hydroxyl group having 1 to 4 carbon atoms. And M ¹ and M ² are the same as described above.)
-Acyl taurines or salts thereof, of which
N-lauroyl-N-methyltaurine sodium, N-
Cocoyl-N-methyltaurine sodium is preferred.

(V) N-alkylamide alkanol sulfates. For example, the following general formula (5)

[0022]

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(Wherein, R ⁶ represents a linear or branched alkyl or alkenyl group having 6 to 22 carbon atoms, and R ⁷ represents a linear or branched alkyl or alkenyl group having 1 to 22 carbon atoms or hydrogen) R ⁸ represents a linear or branched alkylene group having 1 to 5 carbon atoms, R ⁹ O represents an oxyalkylene group having 2 to 3 carbon atoms, and p represents an arbitrary number of 0 to 20. And n n R ⁹ Os may be the same or different).

The component (A) may contain an anionic surfactant other than (a2) :( a1), that is, an anionic surfactant having no nitrogen atom in the basic skeleton. Can be. As the component (a2), those shown in the following (vi) to (viii) are preferable.

(Vi) Phosphate ester type surfactant. For example, the following general formulas (6) and (7)

[0026]

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Where R^Ten, R¹¹And R¹²Has 8 or more carbon atoms
Represents 22 linear or branched alkyl or alkenyl groups
L, m and n each represent an average number of moles of 0 to 10.
Then M ¹And M^TwoIs the same as above. Phosphoric acid represented by)
Stele salts, of which potassium lauryl phosphate
Arginine myristyl phosphate, 2-hexyldecyl
Arginine phosphate is preferred.

(Vii) Isethionic acid type surfactant. For example, the following general formula (8)

[0029]

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(Wherein R ¹³ represents a straight-chain or branched-chain alkyl, alkenyl or hydroxyalkyl group having 7 to ²¹ carbon atoms, and M ¹ is the same as described above). Of these, sodium lauroylisethionate and sodium cocoylisethionate are preferred.

(Viii) Higher fatty acid salts For example, the following general formula (9)

[0032]

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(Wherein, R ¹⁴ represents a linear or branched alkyl or alkenyl group having 8 to 22 carbon atoms, and M ¹ is the same as described above). Salts of single fatty acids such as lauric acid, myristic acid and stearic acid and salts of mixed fatty acids such as coconut oil fatty acids and tallow fatty acids are preferred.

One or more anionic surfactants of component (A) can be used, and when incorporated in the detergent composition in an amount of 0.1% or more and less than 5%, particularly 0.5% or more and less than 5%, This is preferable because the elongation during coating becomes good.

The content of the component (a1) in the component (A) is at least 30% from the viewpoint of the feeling of washing and the elongation during coating.
In particular, it is preferably at least 50%, more preferably at least 60%.

The polyols of the component (B) used in the present invention, for example, propylene glycol, isoprene glycol, 1,2-pentanediol, 1,3-propylene glycol, 1,3-butylene glycol, glycerin, sorbitol, molecular weight 400 Polyethylene glycol having a molecular weight of 600, polyethylene glycol having a molecular weight of 600, dipropylene glycol, diglycerin, polyhydric alcohols such as hexylene glycol, maltitol, xylitol,
Examples include sugar alcohols such as glucose, sucrose, and polyoxyalkylene alkyl glycoside derivatives.

Glycerin, isoprene glycol,
Polyethylene glycol, dipropylene glycol, 1,3-butylene glycol, sorbitol, and polyoxyalkylene alkyl glucoside having a molecular weight of 400 are preferred.

One or more polyols can be used as the component (B). When the detergent composition contains 15 to 65%, and more preferably 20 to 60%, the elongation at the time of application of the detergent composition is increased. Good, no hot flash at the time of massage, and good moist feeling after washing away the detergent composition, which is preferable.

The weight ratio of components (A) and (B) is
(A) / (B) = 1/3 to 1/200, preferably 1 /
12 to 1/200. When (A) / (B) is less than 1/3, good elongation at the time of application cannot be obtained, and when it exceeds 1/200, it is not preferable in that a hot flash is generated and foaming is impaired during use.

In the cleaning composition of the present invention, in addition to the above-mentioned anionic surfactants, other surfactants such as amphoteric type such as carbobetaine type, sulfobetaine type, imidazolinium betaine type and amidobetaine type may be used. Surfactants; Nonionic surfactants such as amine oxides, monoglycerides, sorbitan fatty acid esters, alkyl saccharides, polyoxyalkylene alkyl ethers, higher fatty acid alkanolamides, and silicones can be added as needed. .

One or more of these amphoteric surfactants and nonionic surfactants can be used. When incorporated in the detergent composition in a total amount of 0.1 to 10%, especially 1 to 5%, the foaming power and the foaming power are improved. This is preferable because the cleaning effect is improved.

The detergent composition of the present invention may further contain, if necessary, components used in ordinary detergent compositions, water, oils such as lanolin and its derivatives, bactericides such as triclosan, and tocopherol acetate. Anti-inflammatory agents, preservatives such as methyl paraben, chelating agents, pH regulators such as citric acid and succinic acid, salts such as sodium chloride, other pearling agents, fragrances, dyes, ultraviolet absorbers, viscosity regulators, antioxidants Agents, plant extracts, alcohols, humectants such as trimethylglycine, and the like can be added as long as the effects of the present invention are not impaired. Of these, oils are preferably added in order to obtain a moist wash after washing, but preferably 1% or less in order to avoid stickiness.

Further, the cleaning composition of the present invention is prepared by adding 20
The pH of the aqueous solution when diluted by weight is 4 to 8, especially 5 to 5.
8 is preferred. In order to obtain a preferable pH, it may be adjusted by adding an acid or an alkali to the detergent composition.

The detergent composition of the present invention comprises, for example,
It is used as a makeup remover, a body cleanser, etc., and is particularly suitable as a facial cleanser, and more particularly as a massage facial cleanser.

[0045]

EFFECTS OF THE INVENTION The low-irritant detergent composition of the present invention provides a moist wash after washing, has good elongation during application, and has no hot flash during massage.

[0046]

EXAMPLES Example 1 Table 1 shows the feeling of washing on the skin, the elongation at the time of application,
The result of having evaluated the hot flash feeling is shown.

(Evaluation Method) (i) Feel of Washing Each cleaning composition was applied to the face by a panelist, rinsed with a certain amount of water, and the feel at that time was evaluated according to the following criteria. ○: Moist. Δ: slightly moist. ×: Bulk.

(Ii) Elongation at the time of application After applying each cleaning composition to the face by a panelist, massage was performed at a constant pressure and the same number of times, and slipping and the feeling were evaluated according to the following criteria. ：: Good growth. Δ: Normal. ×: Spread is poor.

(Iii) Hot flash feeling After applying each cleaning composition to the face by a panel, massage was performed at a constant pressure and the same number of times, and the hot flash feeling was evaluated according to the following criteria. ：: No hot flashes are felt. Δ: A slight hot flash is felt. ×: There is a hot flash.

[0050]

[Table 1]

As is apparent from Table 1, 0.1% or more 5%
% Of an anionic surfactant component (A) containing (a1) an anionic surfactant having a nitrogen atom in a basic skeleton and (a2) another anionic surfactant, and 15 to 65% of a polyol (B) ) And (A) / (B) = 1/3 to 1 /
It can be seen that the cleaning agent combined at a ratio of 200 has a better feeling of washing and elongation at the time of application and no hot flash at the time of massage, as compared with the cleaning agent not satisfying these requirements.

Example 8 (massage facial cleanser) (Components) (%) N-lauroyl-β-alanine arginine 2.0 potassium myristyl phosphate 1.5 glycerin 25.0 polyethylene glycol (molecular weight 400) 20.0 lauryl hydroxy Sulfobetaine 1.0 Acrylic acid / alkyl methacrylate copolymer (Pemlen TR-1, BF. Goodrich) 0.8 Trimethylglycine 1.0 Water balance

Example 9 (Body Shampoo) (Components) (%) N-cocoyl-L-glutamic acid 3.0 N-lauroyl-N-methyltaurine potassium 0.5 potassium laurate 0.5 sorbitol 30.0 1,1 3-butylene glycol 10.0 coconut oil fatty acid diethanolamide 2.0 lauryl dimethylamine oxide 3.0 hydroxyethyl cellulose (HEC-SE850, Daicel Chemical) 0.5 water balance

Each of the cleaning compositions obtained in Examples 8 and 9 can provide a moist and wet finish after cleaning, has good elongation at the time of application, and has no hot flash effect at the time of massage. Was completed.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C11D 1/34 C11D 1/34 3/20 3/20 3/22 3/22 (72) Inventor Ichiro Sugai 2-1-3 Bunka, Sumida-ku, Tokyo Kao Corporation Research Laboratory (72) Inventor Hikaru Sumita 2-1-3 Bunka, Sumida-ku Tokyo

Claims (1)

[Claims] 1. The following components (A) and (B): (A) anionic surfactant 0.1% by weight or more and less than 5% by weight In component (A), (a1): a nitrogen atom in the basic skeleton (A2): anionic surfactant other than (a1), (B) 15 to 65% by weight of polyols, and the weight of components (A) and (B) The ratio is (A) /
(B) = 1/2 to 1/200 detergent composition.