JPH11148092A - Body detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject composition useful for a skin detergent, etc., not causing a higher fatty acid smell without masking with a perfume, by including a specific higher saturated fatty acid salt and plural prescribed surfactants. SOLUTION: This composition comprises (A) a 14-22C higher saturated fatty acid salt [e.g. a mixture of 40-90 wt.% of myristic acid, 5-60 wt.% of palmitic acid, 0-10 wt.% of stearic acid, 0-5 wt.% of isostearic acid, 0-1 wt.% of arachic acid and 0-5 pts.wt. of vehenic acid], (B) an amino acid-based surfactant such as a compound of the formula [R1 is a 7-23C alkyl, etc.; R2 is H, a 1-4C alkyl, etc.; R3 is a 1-4C(branched) alkylene or the like; R4 is a group of the formula- COOM (M is H, an alkali metal or the like) or the like], etc., (C) an amphoteric or an amine oxide type surfactant and (D) an alkanolamide type nonionic surfactant. Preferably the composition contains 5-25 wt.% of the component A.

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 a composition comprising a higher fatty acid salt of C14 or higher and an amino acid-based surfactant as main components to give rich and creamy foam and to blend a fragrance. The present invention relates to a hypoallergenic personal cleansing composition that does not have a fatty acid odor at least.

[0002]

2. Description of the Related Art
As for body cleansing agents, various cleansing agents using higher fatty acid salts or anionic surfactants as main components and other amphoteric surfactants, nonionic surfactants, and the like are sold. In particular, a cleaning agent containing a higher fatty acid salt as a main component is excellent in foaming power, has no sliminess at the time of rinsing peculiar to an activator, and gives a refreshing feel. However, these detergents have a strong fatty acid odor and need to be masked with a fragrance or the like. And the unscented detergent mainly composed of higher fatty acid salts,
After washing and drying, there is a problem that an unpleasant fatty acid smell is felt from the body. An object of the present invention is to provide a hypoallergenic body cleansing composition which gives rich and creamy foam despite having a higher fatty acid salt as a main component and does not feel fatty acid odor.

[0003]

Under such circumstances, the present inventors have conducted intensive studies and as a result, mixed a higher saturated fatty acid salt having 14 or more carbon atoms, and added an amino acid-based activator and an amphoteric surfactant to this mixture. It has been found that by adding an agent or an amine oxide type surfactant and an alkanolamide type nonionic surfactant, an unscented body wash composition having rich foaming and no smell of fatty acids can be obtained.

The present invention is based on this finding and comprises (A) a higher saturated fatty acid salt, (B) an amino acid-based surfactant, and (C)
The present invention relates to a personal cleansing composition comprising an amphoteric surfactant or an amine oxide type surfactant and (D) an alkanolamide type nonionic surfactant, wherein the higher saturated fatty acid salt has 14 to 22 carbon atoms.

The fatty acids constituting the higher saturated fatty acid salts having 14 to 22 carbon atoms include, for example, myristic acid, palmitic acid, stearic acid, isostearic acid, arachinic acid, and behenic acid.
Inorganic base salts such as sodium, potassium or ammonium salts, monoethanolamine, diethanolamine or
Examples include alkanolamine salts such as triethanolamine salts, and basic amino acid salts such as lysine or arginine salts.

[0006] These fatty acid salts do not necessarily need to be formulated in the form of a salt from the beginning, and the fatty acid and the base may be independently blended to form a fatty acid salt in a formulation system.

When a mixture of higher saturated fatty acid salts is used,
Preferred examples of the composition of the fatty acid are 40 to 90% by weight of myristic acid, 5 to 60% by weight of palmitic acid, and 0 to 0% of stearic acid.
10% by weight, 0-5% by weight of isostearic acid, 0-1% by weight of arachiic acid, 0-5% by weight of behenic acid, more preferably 50-80% by weight of myristic acid, 25-45% by weight of palmitic acid, 0-5% by weight of stearic acid,
0 to 1% by weight of isostearic acid, 0 to 1% by weight of arachiic acid and 0 to 1% by weight of behenic acid.

In the detergent composition of the present invention, it is preferable that the above-mentioned higher saturated fatty acid salt is contained in the composition in a total amount of 5 to 25% by weight.

The amino acid surfactant is not particularly limited as long as it has a primary to tertiary amino acid group and a carboxyl group, and is specifically represented by the formula (I).

[0010]

Wherein R ₁ represents an alkyl, alkenyl, aryl, aralkyl, alkylaryl or alkenylaryl group having 7 to 23 carbon atoms, and R ₂ represents hydrogen, an alkyl group having 1 to 4 carbon atoms or —CH 2 ₂ CH ₂ OH,
Or (CH ₂ ) qCOOM (q represents a number of 1 to 4, M represents a hydrogen, an alkali metal, ammonium or alkanol ammonium group), and R ₃ represents 1 to 4 carbon atoms.
A linear or branched alkylene group of the formula (II):

[0011]

Wherein M is as defined above, and R ₄ is-
COOM (M is as defined above, or formula (III)

[0012]

(Wherein R ₅ is —CH ₂ COOM or —CH _2
2 CH ₂ COOM, R ₆ is —CH ₂ CH ₂ OH, —CH
₂ COOM or —CH ₂ CH ₂ COOM (M is as defined above)]

Among the amino acid surfactants represented by the formula (I), preferred are, for example, N-lauroylglutamic acid, N-myristoylglutamic acid, N-lauroyl-N-methylglycine, N-lauroylaspartic acid, N-lauroylaspartic acid, -Cocoylglycine, lauroylsarcosine, myristoylsarcosis, N-lauroyl-N'-carboxymethyl-N '-(2-hydroxyethyl) ethylenediamine, N-lauroyl-N'-carboxyethyl-N'-(2-hydroxyethyl ) Ethylenediamine, N-myristoyl-N'-carboxymethyl-N '
-(2-hydroxyethyl) ethylenediamine, N-lauroyl-N- (2-hydroxyethyl) -N'-carboxymethylethylenediamine, N-lauroyl-N-
(2-hydroxyethyl) -N ', N'-bis (carboxymethyl) ethylenediamine, laurylaminopropionic acid, myristylaminopropionic acid, N-lauroyl-β-alanine, N-lauroylsarcosine, N-cocoylglycine and the like. It is.

In the detergent composition of the present invention, the amino acid-based surfactant is preferably contained in the composition in an amount of 0.1 to 30% by weight, more preferably 1 to 20% by weight. .

In the present invention, as the amphoteric surfactant or the amine oxide type surfactant, an amphoteric surfactant or an amine oxide type surfactant generally known as a cosmetic base can be used. .

Examples of such amphoteric surfactants include amino acid-based amphoteric surfactants, amidoamine-type amphoteric surfactants, alkyl betaine-type amphoteric surfactants, amidobetaine-type surfactants, and sulfobetaine-type amphoteric surfactants. Agents and phosphobetaine-type amphoteric surfactants.

Examples of the amine oxide type surfactant include lauryl dimethyl amine oxide, myristyl dimethyl amine oxide, hexadecyl dimethyl amine oxide, stearyl dimethyl amine oxide and the like.

These amphoteric surfactants or amine oxide type surfactants can be used singly or as a mixture of two or more. In the cleaning composition of the present invention, the preferred content of these amphoteric surfactants or amine oxide surfactants is
0.1 to 20% by weight, more preferably 0.3 to 20% by weight.
-10% by weight.

In the present invention, examples of the alkanolamide type nonionic surfactant include lauric acid monoethanolamide, lauric acid diethanolamide, coconut oil fatty acid monoethanolamide, coconut oil fatty acid diethanolamide, myristic acid monoethanolamide, and myristin. Examples include acid diethanolamide, oleic acid monoethanolamide, oleic acid diethanolamide, tallow fatty acid monoethanolamide, tallow fatty acid diethanolamide, palm kernel oil fatty acid monoethanolamide, and palm kernel oil fatty acid diethanolamide.

The preferred content of the alkanolamide type surfactant in the detergent composition of the present invention is 0.1 to 10
%, More preferably 0.2 to 7% by weight.

[0021] The present invention compositions, the intended use or, other surfactants other than fatty acid salt of less than C ₁₄ optionally, moisturizers,
An antioxidant, a preservative, a viscosity modifier, a fragrance, a pigment, and the like can be blended in a range that does not prevent the effects of the present invention.

The cleaning composition of the present invention described above comprises:
It can be produced by an ordinary method, and can be suitably used as a cleaning agent for the skin or the body such as hair.
Particularly, it is preferable as a cleansing agent for skin cleansing.

[0023]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.

Example 1 A personal cleansing composition having the composition shown in Table 1 was produced and evaluated for fatty acid odor and foaming power. Table 1 shows the results.

(Evaluation method) (1) Foaming A sample was taken by a panel of 10 persons in the same manner as in actual use, immersed in water and foamed, and the foaming was evaluated according to the following criteria and averaged. ○: Very good foaming △: Normal foaming ×: Poor foaming

(2) Fatty acid odor A panel of 10 people took a sample in the same manner as in actual use, washed it with water, washed it with water, and after drying, measured the intensity of fatty acid odor from the palm. The comparison was made by reference. ○: almost no fatty acid smell △: slightly fatty acid smell ×: strong fatty acid smell

[0027]

[Table 1]

Example 2 A body cleansing composition having the following composition was produced in the same manner as in Example 1. The resulting detergent composition was rich in creamy foam, and was of the unscented type without a fatty acid odor.

[0029]

[Table 2] (Ingredient) (% by weight) Myristic acid 10 Palmitic acid 5 Potassium hydroxide solution (48%) 6.9 Propylene glycol 6 Lauroylmethyl-β-alanine sodium 3 Lauryl dimethylamine oxide 1 Palm oil fatty acid monoethanol Amide 1 Edetic acid 0.1 Ethylene glycol distearate 1.5 Potassium chloride 2.5 Water balance ───────────────────────────── １０ 100.0

[0030]

According to the present invention, there is provided a body cleansing composition which does not cause the smell of higher fatty acids even without masking with a fragrance, is low-irritating, and can produce a creamy foam richly. Is done.

Claims (5)

[Claims] 1. A composition comprising (A) a higher saturated fatty acid salt, (B) an amino acid-based surfactant, (C) an amphoteric surfactant or an amine oxide surfactant, and (D) an alkanolamide-type nonionic surfactant. , Higher fatty acid salts have 14 carbon atoms
A body cleanser composition characterized by the formula: 2. An amino acid-based surfactant having the formula (I): Wherein R ₁ represents an alkyl, alkenyl, aryl, aralkyl, alkylaryl or alkenylaryl group having 7 to 23 carbon atoms, R ₂ represents hydrogen,
To 4 alkyl or -CH ₂ CH ₂ OH, or (CH ₂₎ qCOOM (q is the number of 1 to 4, M is hydrogen, alkali metal, shows the ammonium or alkanolammonium group) represents, R ₃ is carbon A linear or branched alkylene group of the formulas 1-4, or a compound of the formula (II) Wherein M is as defined above, and R ₄ is —COOM
(M is as defined above), or formula (III): (Wherein R ₅ is —CH ₂ COOM or —CH ₂ CH ₂
COOM, R ₆ is _{-CH 2 CH 2 OH, -CH 2} COO
M or -CH ₂ CH ₂ COOM (M is defined as above) The composition of claim 1 wherein the amino acid-based surfactant represented by representing] a). 3. Higher saturated fatty acid salt: 5 to 25% by weight; amino acid surfactant: 0.1 to 30% by weight; amphoteric surfactant or amine oxide type surfactant: 0.1 to 20% by weight. The composition of claim 1, wherein the composition is prepared. 4. An amphoteric surfactant or an amine oxide type surfactant in an amount of 0.3 to 10% by weight.
Or the composition according to 6. 5. The composition according to claim 1, wherein the alkanolamide type nonionic surfactant is contained in an amount of 0.2 to 7% by weight.