JPH0633094A - Cleaning agent composition - Google Patents

Abstract

PURPOSE:To obtain a cleaning agent composition having excellent foaming power and creamy foam properties and only a slight skin irritation, comprising an N-acyltaurine type anionic surfactant and a beta-alanine type amphoteric surfactant. CONSTITUTION:This cleaning agent composition comprises 1-30wt.% (preferably 3-20wt.%) total amounts of (A) a surfactant of formula I (R1 is 7-10C alkyl or alkenyl R2 is 1-3C alkyl; M is alkali metal or organic amine) (e.g. sodium N-lauroyl-N-methyltaurine) and (B) a surfactant of formula II (R is 6-18C hydrocarbon; (m) is 0-9; (n) is 1-10; with the proviso that m+n=1-10; M is H, alkali metal, etc.) [e.g. N-(2-hydroxydodecyl)-N-(2-hydroxyethyl)-beta-alanine sodium salt].

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 the skin and hair, an excellent foaming power and a detergency, and an excellent conditioning effect on the hair.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
Anionic surfactants such as alkyl sulfate ester salts, polyoxyethylene alkyl ether sulfate salts, and α-olefin sulfonates are widely used as detergent surfactants. However, all of these anionic surfactants have the disadvantage that they are inferior in skin irritation to some extent.

By the way, it is known that N-acyl taurine type anionic surfactants are useful as one component of detergents. However, this surfactant has a strong protein-denaturing property, and when used alone, it does not provide the desired hypoallergenic detergent (Japanese Patent Laid-Open No. 59-100919), and when used on hair, it foams. There is a drawback that the strength is insufficient and the foam quality lacks a rich feeling (Japanese Patent Laid-Open No. 1-178596).

On the other hand, the β-alanine type amphoteric surfactant is useful as one component of a detergent, has excellent detergency and dispersibility of metal soap (scum), and is mild to skin and hair. It is known to be mild (Japanese Patent Publication No. 53-42041, Japanese Patent Publication No. 57-39280). However, it is difficult to use it as a main surfactant of a cleaning agent because it lacks a foaming power and lacks a rich feeling of foam quality.

In view of the above circumstances, the present inventor has conducted diligent research and, as a result, has found that a composition containing an N-acyltaurine type anionic surfactant and a β-alanine type amphoteric surfactant is excellent. The present invention was found to be a detergent composition having a foaming power and a creamy foam quality, having less skin irritation, and having an excellent conditioning effect on hair, and completed the present invention.

[0006] That is, an object of the present invention is to provide a detergent composition having excellent foaming power and creamy foam quality, less irritation to the skin, and excellent conditioning effect on hair. It is in.

[0007]

Means for Solving the Problems The present invention which achieves the above object is represented by the general formula (A):

[Chemical 3] (Wherein R ₁ is an alkyl group or an alkenyl group having 7 to 19 carbon atoms, R ₂ is a lower alkyl group having 1 to 3 carbon atoms, and M is an alkali metal or an organic amine).
-Acyl taurine type anionic surfactant and the general formula (B)

[Chemical 4] (Here, R is a hydrocarbon group having 6 to 18 carbon atoms, m and n are integers, m = 0 to 9, n = 1 to 10, m + n = 1 to 10, and M is hydrogen, alkali metal, ammonium or organic. And a β-alanine-type amphoteric surfactant represented by the formula (1).

Examples of the N-acyl taurine type anionic surfactant represented by the above general formula (A) used in the present invention include N-lauroyl-N-methyl taurine sodium and N-myristoyl-N-methyl taurine tritium. Ethanolamine salt, N-cocoyl-N-ethyltaurine sodium, N-oleoyl-N-propyltaurine sodium, N-palmitoyl-N-methyltaurine potassium and the like can be mentioned.

Is the second essential ingredient of the composition of the present invention,
In the β-alanine type amphoteric surfactant represented by the above general formula (B), R is a hydrocarbon group having 6 to 18 carbon atoms, such as octyl, decyl, lauryl, myristyl,
Examples include single alkyl such as palmityl, stearyl, and isostearyl, or a mixture thereof, and m is 0.
-9, n is an integer of 1-10, m + n is an integer of 1-10, and M is hydrogen or an alkali metal such as Na or K, or ammonium or triethanolamine. Specifically, N- (2-hydroxydodecyl) -N- (2-hydroxyethyl) -β-alanine sodium salt, N- (2-hydroxydodecyl)-
N- (polyoxyethylene (3EO))-β-alanine sodium salt, N- (2-hydroxyalkyl)-
N- (2-hydroxyethyl) -β-alanine triethanolamine salt (2-hydroxyalkyl group is C ₁₂ , C
₁₄ ) etc.

The total amount of the components of the general formulas (A) and (B) is
It is about 1 to 30% by weight, more preferably 3 to 20% by weight, based on the total amount of the detergent composition. If it is less than 1% by weight, the effect is not exhibited, and if it exceeds 30% by weight, it becomes difficult to obtain a uniform and stable composition. The weight ratio of the compound of general formula (A) to the compound of general formula (B) is about 10 /
It is preferable to use it in the range of 1 to 1/10, and the effect is not sufficiently exhibited at a weight ratio other than this range.

In addition to the above-mentioned essential components, the detergent composition of the present invention may contain components and additives that are commonly used in detergents. For example, higher fatty acids, higher alcohols, silicones, silicone derivatives, oily components such as lanolin derivatives and fatty acid esters of polyethylene glycol, nonionic surfactants such as fatty acid alkanol amides, polyoxyethylene alkyl ethers and alkyl amine oxides, alkylaminoacetic acid. Zwitterionic surfactants such as betaine and acylamidopropyl betaine,
Cationic surface active agents such as stearyl trimethyl ammonium chloride, cationic polymers [Polymer JR
(Union Carbide Corporation), Polycoat NH (Henkel), Marcoat 550 (Merck), Gaffcut 755N (GAF), cationized guar gum, methacrylic amphoteric / cationic polymer, etc.], bactericide, chelating agent , UV absorbers, pH adjusters, dyes and fragrances. The cleaning composition of the present invention is applied to shampoos, body cleaning agents, facial cleansers, kitchen detergents and the like.

[0012]

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

Foaming Foaming power was measured according to the loss miles test method. However,
The sample is a 2% aqueous solution (using CaCO ₃ 50 ppm artificial hard water) at a temperature of 40 ° C. ∘: Very good foaming, foaming power of 250 mm or more ◯: Good foaming, foaming power of 210 mm or more, 250 mm
Less than △: Foaming is normal, foaming power is 170 mm or more, 210 mm
Less than ×: Poor foaming, foaming power less than 170 mm

Fineness of Bubbles (Creamyness) A virusman foam measuring device was used to rotate the brush for 1000 rotations for 5 minutes, and then the bubbles were collected, and the viscosity thereof was measured with a B-type viscometer. The sample is a 2% aqueous solution. The finer the foam, the higher the foam viscosity. ◎ ... Good foam fineness, foam viscosity 1500 cps or more ○ ... Foam fineness is normal, foam viscosity 700-1500 c
ps x ... Poor foam fineness, foam viscosity 700 cps or less

Skin irritation (protein denaturation rate) test method The ovalbumin denaturation rate when the sample was added to an ovalbumin pH7 buffer solution at a sample concentration of 1% using aqueous high performance liquid chromatography was 220 nm. It measured using the absorption peak of. Denaturation rate (%) = (Ho-Hs) / Ho × 100 Ho: height of 220 nm absorption peak of ovalbumin Hs: 2 when sample is added to ovalbumin buffer solution
The height evaluation standard for the 20 nm absorption peak was set as follows. ◎: Ovalbumin denaturation rate of less than 30% ◯: Ovalbumin denaturation rate of 30% or more and less than 60% △: Ovalbumin denaturation rate of 60% or more and less than 80% ×: Ovalbumin denaturation rate of 80% or more

Ease of tying hair after washing (conditioning effect) This is an evaluation method by a sensory test. 5.0 g of the sample shampoo composition was applied to hair, shampooed, rinsed, and towel-dried. (The number of panelists is 20 women, and the evaluation score is the average score.) Evaluation 1; When hair is very difficult to put together 2; When hair is not easily put together 3; Hair is easy to put together 4; When hair is easy to put together 5; When hair is very easy to put together

[0017]

Examples 1 to 5 and Comparative Examples 1 to 5 Shampoos having the compositions shown in Tables 1 and 2 were prepared by a usual method, and the effects of each essential component were investigated.

[0018]

[Table 1]

[0019]

[Table 2]

As is clear from Examples 1 to 5, the cleaning agents using the components of the present invention all showed excellent performance. On the other hand, in Comparative Examples 1 and 2 lacking either of the essential components, sufficient performance cannot be obtained. Also, with one of the essential ingredients,
Usually, the combination with a surfactant used as a detergent (Comparative Examples 3 to 5) is inferior in terms of fineness of foam, skin irritation, and easiness of gathering hair after washing.

[0021]

Example 6 A shampoo composition shown below was prepared and evaluated by the above method. All items were evaluated as excellent as in Examples 1 to 5. (%) [Formula B] in R: C _{12, 14} equal mixture of, m = 0, n = 1 , 10 M is sodium component (5) N-cocoyl -N- methyl taurine sodium 10 coconut oil Fatty acid diethanolamide 3 Cationized cellulose (Polymer JR400, UCC) 0.3 Perfume, dye Appropriate amount Purified water balance

[0022]

[Example 7] The following body shampoo had excellent foaming and fineness of foam, and had extremely weak irritation to the skin. (%) In general formula B, R: C ₁₀ , m = 1, n = 2, 8 M is triethanolamine Component (6) N-myristoyl-N-methyltaurine triethanolamine salt 12 Trimyristate Ethanolamine salt 4 Propylene glycol 2 Fragrance, dye Appropriate amount Purified water balance

[0023]

Industrial Applicability As described above, the cleaning composition of the present invention has excellent foaming power and creamy foam quality, is less irritating to the skin, and shows excellent conditioning effect on hair. It is clear to provide.

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Claims (1)

[Claims] 1. A compound represented by the general formula (A): (Wherein R ₁ is an alkyl group or an alkenyl group having 7 to 19 carbon atoms, R ₂ is a lower alkyl group having 1 to 3 carbon atoms, and M is an alkali metal or an organic amine).
-Acyl taurine type anionic surfactant and a compound represented by the general formula (B): (Here, R is a hydrocarbon group having 6 to 18 carbon atoms, m and n are integers, m = 0 to 9, n = 1 to 10, m + n = 1 to 10, and M is hydrogen, alkali metal, ammonium or organic. And a β-alanine-type amphoteric surfactant represented by the formula (1).