JPH05186792A - Detergent composition - Google Patents

Abstract

PURPOSE:To obtain a detergent composition which is excellent in foaming power and detergency and mild to the skin or hair by mixing a specified anionic surfactant, a specified taurate anionic surfactant and a specified amidoamine amphoteric surfactant. CONSTITUTION:The title composition is obtained by mixing an anionic surfactant comprising N-polyoxyethylene higher fatty acid amide ether sulfate of formula I (wherein R is 7-11C alkyl or alkenyl; M is an alkali metal or an alkanolamine; and n is an integer of 2-5) with a taurate anionic surfactant of formula II (wherein R is 7-19C alkyl or alkenyl; and M is an alkali metal, ammonium or an alkanolamine) and at least one amidoamine amphoteric surfactant of formula III or IV (wherein R1 and R3 are each 7-19C alkyl or alkenyl; R2 and R4 are each -CH2COOM or the like; R5 is hydrogen, -CH2COOM or the like; and M is hydrogen, an alkali metal or the like).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition having a mild action on skin and hair and having excellent foaming power and detergency.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
Anionic surfactants such as alkyl sulfate ester salts and polyoxyethylene alkyl ether sulfates have been widely used as detergent surfactants. However, these surfactants have skin irritation and cause skin roughness. On the other hand, N-polyoxyethylene higher fatty acid amide ether sulfate is known to be an anionic surfactant that is excellent in detergency and foamability and is mild to the skin. However, when N-polyoxyethylene higher fatty acid amide ether sulfate is added to the detergent composition, the physicochemical properties of the detergent composition and the physiological properties for the skin and hair are not always sufficient, It has been difficult to use it as a main surfactant in detergent compositions and the like. Under such circumstances, improvement of drawbacks when blended in a detergent composition or the like has been studied, and for example, N-polyoxyethylene higher fatty acid amide ether sulfate and N-acyl-N-methyl-β-alanine. salt,
Detergent compositions containing a sulfosuccinate ester-based surfactant, an N-acylglutamate, a polyoxyethylene ether carboxylate, and a phosphate ester-based amphoteric surfactant, respectively (JP-A-1-44645 and JP-A-1). -54214, JP-A-1-57356,
JP-A-1-233518) and a hypoallergenic detergent composition (JP-A-1-245731) have been proposed. However, a detailed study of these compositions and detergent compositions shows that the detergency, foamability, and action on skin and hair are sufficient, but the creamy sensation of foam quality, which is an important factor during use, is It turns out that there is a problem that it is not always sufficient.

On the other hand, a taurate type anionic surfactant,
Although the amidoamine type amphoteric surfactants have improved irritation to the skin as compared with alkyl sulfate ester salts, polyoxyethylene alkyl ether sulfates and the like, they have insufficient detergency.

Therefore, as a result of intensive investigations aimed at improving the above-mentioned problems of the prior art, the present inventors have found that an anionic surfactant N-polyoxyethylene higher fatty acid amide ether sulfate, a taurate anionic surfactant, And a composition containing an amidoamine-type amphoteric surfactant have excellent foaming power and detergency, have a mild action on skin and hair, and have a good foamy creamy feeling. Therefore, the present invention has been achieved. That is, an object of the present invention is to provide a detergent composition having excellent foaming power and detergency, having a mild action on the skin and hair, and having a good creamy feeling of foam quality. Is.

[0005]

The present invention has the general formula (1)

[Chemical 5] (In the formula, R is an alkyl group or an alkenyl group having 7 to 11 carbon atoms, M is an alkali metal or an alkanolamine, and n is
Represents an integer of 2 to 5. ) An anionic surfactant N-polyoxyethylene higher fatty acid amide ether sulfate represented by the general formula (2)

[Chemical 6] (Wherein R represents an alkyl group or alkenyl group having 7 to 19 carbon atoms, M represents an alkali metal, ammonium or alkanolamines), and a general formula (3) Or (4)

[Chemical 7]

[Chemical 8] (In the formula, R ₁ and R ₃ are alkyl groups or alkenyl groups having 7 to 19 carbon atoms, R ₂ and R ₄ are —CH ₂ COOM, —CH
₂ CH ₂ COOM, R ₅ is hydrogen or -CH ₂ COOM,
—CH ₂ CH ₂ COOM, M represents hydrogen, an alkali metal or an alkanolamine. ) At least one amidoamine type amphoteric surfactant represented by the formula (1) is a cleaning composition.

Examples of the N-polyoxyethylene higher fatty acid amide ether sulfate used in the present invention include N
-Polyoxyethylene (4EO) coconut oil fatty acid amide ether sodium sulfate (abbreviated as PYS-Na), N-polyoxyethylene (4EO) coconut oil fatty acid amide ether triethanolamine (PYS)
-T), N-polyoxyethylene (4E.
O. ) Sodium lauric acid amide ether sulfate (PL
Abbreviated as S-Na), N-polyoxyethylene (4
E. O. ) Lauric acid amide ether triethanolamine sulfate (abbreviated as PLS-T) and the like.

The taurate type anionic surfactant used in the present invention is, for example, N-lauroyl-N-methyltaurine sodium (abbreviated as LT), N-cocoyl-N.
-Methyltaurine sodium (abbreviated as YT), N-
Myristoyl-N-methyltaurine sodium (abbreviated as MT) and the like, and further potassium, ammonium or alkanolamine such as N-lauroyl-N-methyltaurine, N-cocoyl-N-methyltaurine and N-myristoyl-N-methyltaurine And the like.

Examples of the amidoamine type amphoteric surfactant used in the present invention include N-lauroyl-N'-carboxymethyl-N '-(2-hydroxyethyl) ethylenediamine (abbreviated as LE) and N-myristoyl-N'. -Carboxymethyl-N '-(2-hydroxyethyl) ethylenediamine (abbreviated as ME), but not limited thereto, N-lauroyl-N'-2-hydroxyethyl-
N′-carboxymethylethylenediamine, N-myristoyl-N′-2-hydroxyethyl-N′-carboxymethylethylenediamine and the like and salts thereof are also included.

The total amount of the surfactants represented by the general formula (1), (2), (3) or (4), which is a component of the detergent composition of the present invention, is 3 to 30% by weight based on the total amount of the detergent composition. % Is preferable, and more preferably 5 to 25% by weight. If it is less than 3% by weight, sufficient foaming power and detergency cannot be obtained, and if it exceeds 30% by weight, it becomes difficult to obtain a uniform and stable composition.

In addition to the above-mentioned essential components, the detergent composition of the present invention may contain components or additives that are commonly used in detergents. For example, higher alcohols, lanolin derivatives of silicone oil, protein derivatives, oily components such as fatty acid esters of polyethylene glycol, oily components such as fatty acid esters, nonionics such as fatty acid alkanolamides, polyoxyethylene alkyl ethers and alkylamine oxides. -Active surfactants, amphoteric surfactants such as alkylamidopropyl betaine, water-soluble polymers such as hydroxypropylmethyl cellulose and hydroxyethyl cellulose, cationic polymers [Polymer JP
(Manufactured by Union Carbide Corporation), polycoat NH (manufactured by Henkel), mercoat 550 (manufactured by Merck), gaff cut 755N (manufactured by GAF), etc.], bactericide, chelate agent, ultraviolet absorber, pH adjuster, pigment and Fragrances and the like can be included. The cleaning composition of the present invention,
It is applied to shampoo, body wash, face wash, etc.

[0011]

The present invention will be described in more detail with reference to Examples. The effect was measured by the following evaluation method.

(Foaming Test Method) The foaming force was measured according to the Loss Miles test method. However, the sample is a 2% aqueous solution (Ca
CO ₃ 50 ppm artificial hard water is used) and the temperature is 40 ° C. ⊚: Very good foaming, foaming power of 250 mm or more ○: Good foaming, foaming power of 210 mm or more 25
0 mm or less △: Normal foaming Foaming power 170 mm or more 21
0 mm or less x ... Poor foaming Foaming power less than 170 mm

(Detergency test method) 5% × 5 cm wool muslin cloth with 7% lanolin and 0.005% Sudan III
0.4 ml of chloroform solution was uniformly applied and dried, and the contaminated cloth was washed with about 1 ml of 40 ml of 3% detergent solution.
It was placed in a 00 ml glass cylinder, shaken for 15 minutes in a constant temperature bath of 40 ° C., the contaminated cloth was rinsed well in running water, dried, and then the reflectance was examined to obtain the washing rate by the following formula.

[0014]

[Equation 1]

The evaluation criteria were set as follows. ◎… Excellent detergency Cleaning efficiency 85% or more ○… Good detergency Cleaning efficiency 70% or more and less than 85% △… Ordinary detergency 55% or more and less than 70% × Deteriorated detergency Cleaning efficiency less than 55%

(Safety test) Test method for skin irritation (protein denaturation rate) Egg white when a sample was added to an ovalbumin PH7 buffer solution at a sample concentration of 1% using aqueous high performance liquid chromatography. The albumin denaturation rate was measured using the absorption peak at 220 nm.

[0017]

[Equation 2]

Ho: height of 220 nm absorption peak of ovalbumin Hs: 22 when sample is added to ovalbumin buffer solution
Height of 0 nm absorption peak

The evaluation criteria were set as follows. ◎… Ovalbumin denaturation rate less than 30% ○… Ovalbumin denaturation rate 30% or more and less than 60% △… Ovalbumin denaturation rate 60% or more and less than 80% ×… Ovalbumin denaturation rate 80% or more

Hand Roughness Test Method For each sample, 5 male and 5 female panelists, totaling 10 persons, using either one of the left and right hands, sample concentration 5%, temperature 35
The operation of immersing the other hand in water of the same temperature for 10 minutes in an aqueous solution at 0 ° C. was performed twice a day for two consecutive days, and the difference between the rough skin conditions of the left and right hands was visually determined.

◎ ... Hand roughness is extremely weak 0 to 1 out of 10 ○ ... Hand roughness is slightly weak 2 to 4 out of 10 △… Hand roughness is relatively strong 5 to 7 out of 10 ×… Hand roughness is extremely strong 10 8 to 10 people

Examples 1 to 6 and Comparative Examples 1 to 5 Shampoos having the compounding compositions shown in Table 1 were prepared by a usual method, and the effect of each essential component was investigated, and Table 2 shows the results.

[0023]

[Table 1]

[0024]

[Table 2]

(Characteristics) As is clear from Examples 1 to 6, all the detergents using the components of the present invention showed excellent performance. On the other hand, Comparative Examples 1 and 2 lacking any of the essential components were not satisfactory in all points such as foaming power, detergency, and low irritation. In addition, N-polyoxyethylene (4.EO) coconut oil fatty acid amide ether sodium sulfate (PYS-N) found in the prior art.
The materials of Comparative Examples 3 to 5 in which a) and other surfactants were blended were also unsatisfactory in all respects such as foaming power, detergency and low irritation.

[0026]

Industrial Applicability As described above, the present invention provides a detergent composition having high safety, having a mild action on skin and hair, and having excellent foaming power and detergency. That is clear.

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Claims (1)

[Claims] 1. A compound represented by the general formula (1): (In the formula, R is an alkyl group or an alkenyl group having 7 to 11 carbon atoms, M is an alkali metal or an alkanolamine, and n is
Represents an integer of 2 to 5. An anionic surfactant N-polyoxyethylene higher fatty acid amide ether sulfate represented by the formula (1) and a compound represented by the general formula (2): (Wherein R represents an alkyl group or alkenyl group having 7 to 19 carbon atoms, M represents an alkali metal, ammonium or alkanolamines), and a general formula (3) Or (4) [Chemical 4] (In the formula, R ₁ and R ₃ are alkyl groups or alkenyl groups having 7 to 19 carbon atoms, R ₂ and R ₄ are —CH ₂ COOM, —CH
₂ CH ₂ COOM, R ₅ is hydrogen or -CH ₂ COOM,
—CH ₂ CH ₂ COOM, M represents hydrogen, an alkali metal or an alkanolamine. And at least one amidoamine type amphoteric surfactant represented by the formula (1).