JPH07252496A - Detergent composition - Google Patents

Abstract

PURPOSE:To obtain a detergent composition having good foamability, low irritant to both the skin and hair, containing an alkyl dimethylaminoacetic acid betaine-type amphoteric surfactant, a sparingly thickening anionic surfactant and a fatty acid diethanolamide. CONSTITUTION:This detergent composition contains a total of 7-50wt.% of (A) an alkyl dimethylaminoacetic acid betaine-type amphoteric surfactant of formula I (R<1> is a 12-16C alkyl) (e.g. myristyl dimethylaminoacetic acid betaine), (B) a sparingly thickening anionic surfactant of e.g. formula II (R<2> is a 7-17C alkyl or an alkenyl; M<1> is an alkali metal, an alkanolamine, ammonium, etc.; (a) is 1 or 2) (e.g. N-lauroyl sarcosine sodium), and (C) a fatty acid diethanolamide of formula III (R<8> is a 7-17C alkyl or an alkenyl) (e.g. coconut fatty acid diethanolamide) at a weight ratios A/B of (10:90) to (95:5) and (A+B)/C of (95:5) to (60:40).

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a detergent composition. The detergent composition has a good foaming property, is less irritating to hair and skin, and is useful as a detergent for hair, body, textiles and various households.

[0002]

2. Description of the Related Art Liquid detergent compositions containing an anionic surfactant having a viscosity-increasing viscosity as a main base generally have low irritation and good stability at low temperatures, but impart a proper viscosity required for their use. Was difficult.

There is a method of using an inorganic thickener in order to solve such a defect, but when a large amount of this thickener is added, the low temperature stability is lowered. In addition, when a polymeric thickener is used, the transparency of the system is often impaired. Furthermore, in order to obtain the target viscosity, a method of using an anionic surfactant having a difficulty in thickening and a sulfate type anionic surfactant in combination has been tried, but in this case, irritation is increased, whichever method is used. Was not satisfactory either.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a detergent composition which contains an anionic surfactant having a viscosity-increasing difficulty as an essential component, has an appropriate viscosity, has good low-temperature stability, and is mild. The purpose is to provide.

[0005]

Means for Solving the Problems As a result of intensive studies to achieve the above object, the inventors of the present invention have used an anionic surfactant having a low viscosity and an amphoteric surfactant having a specific structure and a fatty acid diethanolamide in combination. By doing so, it was found that a predetermined effect can be obtained without impairing low temperature stability and low irritation, and the present invention has been completed based on such findings.

That is, the cleaning composition according to the present invention contains the following three components (A), (B) and (C), and the weight ratio (% by weight) is (A) / (B). = 10/90 to 95 /
5 and [(A) + (B)] / (C) = 95 / 5-60 /
40, and the total amount of (A) to (C) is 7 to 5
It is characterized by being 0% by weight.

(A) One or two represented by the general formula (1)
One or more alkyldimethylaminoacetic acid betaine-type amphoteric surfactants (provided that 50% by weight or more of the component is myristyldimethylaminoacetic acid betaine).

[0008]

[Chemical 11] [In the formula, R ¹ represents an alkyl group having 12 to 16 carbon atoms. ] (B) 1 type, or 2 or more types of hardly-viscosifying anionic surfactants represented by any one of the general formulas (2) to (9).

[0009]

[Chemical 12] [In the formula, R ² represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms, and M ¹ represents an alkali metal, an alkanolamine, ammonium or a cation of a basic amino acid. a represents 1 or 2. ]

[0010]

[Chemical 13] [In the formula, R ³ represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms, M ² and M ³ are the same or different and each represents a hydrogen atom, an alkali metal, an alkanolamine, ammonium or a cation of a basic amino acid. Represent However, M ² , M ³
Are not both hydrogen atoms. ]

[0011]

[Chemical 14] [In the formula, R ⁴ represents a linear or branched alkyl group or alkenyl group having 8 to 18 carbon atoms, M ⁴ is an alkali metal,
Represents the cation of an alkaline earth metal, alkanolamine, ammonium or basic amino acid. n ⁴ is the number of charges in the M ⁴ cation. b shows the positive number of 1-16. ]

[0012]

[Chemical 15] [In the formula, R ⁵ represents an alkyl or alkenyl group having 8 to 18 carbon atoms, M ⁵ and M ⁶ are the same or different, and are an alkali metal, alkaline earth metal, alkanolamine, ammonium or a cation of a basic amino acid. Represents n ⁵ and n ⁶ are the numbers of charges in the cations of M ⁵ and M ⁶ , respectively. c is 0
Or, a positive number of 1 to 7 is shown. ]

[0013]

[Chemical 16] [In the formula, R ⁵ , M ⁵ , M ⁶ , n ⁵ , n ⁶ and c are as described above. ]

[0014]

[Chemical 17] [In the formula, R ⁶ represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms, M ⁷ and M ⁸ are the same or different and are an alkali metal, alkaline earth metal, alkanolamine, ammonium or a basic amino acid cation. Represents an ion. n ⁷ , n ⁸
Are the numbers of charges in the cations of M ⁷ and M ⁸ , respectively. d represents 0 or a positive number of 1 to 7. ]

[0015]

[Chemical 18] [In the formula, R ⁶ , M ⁷ , M ⁸ , n ⁷ , n ⁸ and d are as described above. ]

[0016]

[Chemical 19] [In the formula, R ⁷ represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms, and M ⁹ represents an alkali metal, an alkaline earth metal, an alkanolamine, ammonium or a cation of a basic amino acid. n ⁹ is the number of charges in the cation of M ⁹ . e is 0 or a positive number of 1 to 7. ]

(C) One or more fatty acid diethanolamides represented by the general formula (10).

[Chemical 20] [In the formula, R ⁸ represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms. ]

50 of the components (A) according to the present invention
Weight percent or more is betaine myristyldimethylaminoacetate. If this content is less than 50% by weight, the thickening effect or the foaming effect is poor, which is not preferable.

Examples of the hardly thickening anionic surfactant represented by the general formula (2) include N-lauroyl sarcosine sodium, N-lauroyl sarcosine triethanolamine, N-coconut oil fatty acid sarcosine sodium and N-coconut oil fatty acid sarcosine. Triethanolamine, N-lauroyl-N-methyl-β-alanine sodium, N-lauroyl-N-methyl-β-alanine triethanolamine, N-coconut oil fatty acid-N-methyl-β-alanine sodium, N-coconut Oil fatty acid-N-methyl-β-alanine triethanolamine and the like are exemplified.

As the hardly-viscosifying anionic surfactant represented by the general formula (3), sodium N-lauroyl-L-glutamate, N-lauroyl-L-glutamate triethanolamine, N-coconut oil fatty acid-L- Examples include sodium glutamate, N-coconut oil fatty acid-L-glutamate triethanolamine, and the like.

Examples of the hardly thickening anionic surfactant represented by the general formula (4) include poly (1-16) sodium oxyethylene lauryl ether acetate, poly (1-16) potassium oxyethylene lauryl ether acetate, poly ( 1
To 16) oxyethylene lauryl ether acetate triethanolamine, poly (1-16) sodium oxyethylene tridecyl ether acetate, poly (1-16) potassium oxyethylene tridecyl ether acetate, poly (1 to 1)
16) oxyethylene tridecyl ether acetate triethanolamine, poly (1-16) oxyethylene coconut oil alkyl ether sodium acetate, poly (1-16) oxyethylene coconut oil alkyl ether potassium acetate, poly (1-16) oxyethylene Examples include coconut oil alkyl ether acetate triethanolamine and the like.

Examples of the hardly thickening anionic surfactant represented by the general formula (5) or (6) include poly (0-7) disodium lauryl oxyethylene sulfosuccinate and poly (0-7) oxyethylene sulfosuccinate. Dipotassium lauryl, poly (0-7) oxyethylene lauryl disulfoethanol sulphonate triethanolamine, poly (0-7) oxyethylene sulfosuccinate palm oil alkyl disodium, poly (0-7) oxyethylene sulfosuccinate palm oil alkyl di Examples thereof include potassium and poly (0-7) oxyethylene sulfosuccinate coconut oil alkylditriethanolamine.

Examples of the hardly thickening anionic surfactant represented by the general formula (7) or (8) include poly (0-7) sulfosuccinic acid disodium oxyethylene lauroylethanolamide and poly (0-7) sulfosuccinic acid. Oxyethylene lauroyl ethanolamide dipotassium, sulfosuccinic acid poly (0-7) oxyethylene lauroyl ethanolamide magnesium, sulfosuccinic acid poly (0
7) Oxyethylene lauroyl ethanolamide diammonium, sulfosuccinic acid poly (0-7) oxyethylene coconut oil fatty acid acylethanolamide disodium,
Examples include sulfosuccinic acid poly (0-7) oxyethylene coconut oil fatty acid acylethanolamide dipotassium, sulfosuccinic acid poly (0-7) oxyethylene coconut oil fatty acid acylethanolamide diammonium, and the like.

Examples of the hardly-viscosifying anionic surfactant represented by the general formula (9) include poly (0-7) oxyethylene coconut oil fatty acid sodium monoethanolamide sulfate, poly (0-7) oxyethylene coconut oil fatty acid. Examples include monoethanolamide triethanolamine sulfate, poly (0-7) oxyethylenelauric acid monoethanolamide sulfate sodium, poly (0-7) oxyethylenelauric acid monoethanolamide sulfate triethanolamine, and the like.

As the hardly-viscosifying anionic surfactant used in the present invention, one or more selected from those represented by the formulas (2) to (9) are appropriately selected and used.

As the fatty acid diethanolamide as the component (C), coconut oil fatty acid diethanolamide, palm kernel oil fatty acid diethanolamide, lauric acid diethanolamide, myristic acid diethanolamide, lauric acid myristic acid diethanolamide, capric acid diethanolamide, etc. Is exemplified.

The amount of the component (A) used in the present invention is not particularly limited as long as a predetermined effect can be obtained, but it is usually 3 to 30% by weight, preferably 5 to 20% by weight based on the whole composition.
Is.

In the present invention, the compounding ratio (% by weight) of the component (A) and the component (B) is (A) / (B) = 10/9.
It is 0 to 95/5, and particularly 30/70 to 90/10 is desirable in terms of viscosity increasing and foaming property.

The total amount of the components (A) and (B) and the blending ratio (% by weight) of the components (C) are [(A) +
(B)] / (C) = 95/5 to 60/40, and 90/10 to 70/30 is particularly desirable in terms of thickening and foaming properties.

In the present invention, the total amount of the components (A), (B) and (C) is 7 to 7 with respect to the entire detergent composition.
50% by weight, preferably 10 to 30% by weight is particularly desirable in terms of thickening property, foaming property and economical efficiency.

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. That is, other anionic surfactants, other amphoteric surfactants, cationic surfactants, nonionic surfactants, humectants such as propylene glycol and glycerin, viscosity modifiers, water-soluble polymers, animal and plant extracts and the like. Derivatives, organic acids, colorants, preservatives, chelating agents, ultraviolet absorbers and the like can be appropriately added within a range that does not impair the effects of the present invention.

The detergent composition thus obtained is useful as a detergent for hair, a detergent for body, a detergent for textiles or various household detergents, and is particularly excellent as a detergent for hair.

[0033]

EXAMPLES The present invention is described in detail below with reference to examples. The evaluation method and test method in the present invention are shown below.

(1) Viscosity increase A detergent composition having a composition as shown in Table 1 was prepared, the viscosity was measured using a B-type viscometer, and the following four-stage evaluation was performed. ◎ 1000 mPa ・ s or more ○ 500-1000 mPa ・ s △ 100-500 mPa ・ s × less than 100 mPa ・ s

(2) Low-temperature stability A detergent composition having a predetermined composition was prepared, and this solution was allowed to stand at 0 ° C. for 72 hours, and then the degree of turbidity was observed and evaluated according to the following four grades. ◎ Transparent ○ Almost transparent, slightly turbid △ Slightly turbid × White turbid

(3) Skin irritation A detergent composition having a prescribed composition was prepared, and 40 g of a 10% aqueous solution of the composition was soaked in a sponge, and it was squeezed with one hand for 20 to 30 times to foam. Rinse the forearm of the other arm for 30 seconds and rinse with running water for 10 seconds. After repeating this for 5 days, self-judgment was performed on the next day according to the following criteria, and the result was shown as an average value (score) of 20 or more subjects. The skin is not rough 5 The skin is rough 3 The skin is extremely rough 1

Examples 1 to 8 A cleaning composition containing the components (A), (B) and (C) in the proportions (% by weight) shown in Table 1 and the balance being water was prepared, The thickening effect, low temperature stability and skin irritation of the composition were evaluated. The results obtained are shown in Table 1. In the table, polyoxyethylene is abbreviated as "POE", and the number of added moles thereof is shown in the following parentheses.

Comparative Examples 1 to 8 A detergent composition containing (A), (B) and (C) in the proportions (% by weight) shown in Table 2 and the balance being water was prepared, and its viscosity was increased. The effect, low temperature stability and skin irritation were measured. The results obtained are shown in Table 2. In the table, polyoxyethylene is abbreviated as "POE", and the number of added moles thereof is shown in the following parentheses.

[0039]

[Effects of the Invention] Alkyldimethylaminoacetic acid betaine-type amphoteric surfactants having a specific structure according to the present invention, a viscosity-increasing anionic surfactant, and fatty acid diethanolamide are blended in a specific weight ratio to increase viscosity and stability at low temperature. A composition having excellent properties and less skin irritation can be obtained.

[0040]

[Table 1]

[0041]

[Table 2]

[Table 1]

[Table 2]

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Claims (1)

[Claims] 1. The following three components (A), (B) and (C) are contained, and the weight ratio (% by weight) is (A) / (B) =
10/90 to 95/5 and [(A) + (B)] / (C)
= 95/5 to 60/40, and (A) to
A cleaning composition, wherein the total amount of (C) is 7 to 50% by weight. (A) One or two or more alkyldimethylaminoacetic acid betaine-type amphoteric surfactants represented by the general formula (1) (provided that 50% by weight or more of the component is myristyldimethylaminoacetic acid betaine). [Chemical 1] [In the formula, R ¹ represents an alkyl group having 12 to 16 carbon atoms. ] (B) 1 type, or 2 or more types of hardly-viscosifying anionic surfactants represented by any one of the general formulas (2) to (9). [Chemical 2] [In the formula, R ² represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms, and M ¹ represents an alkali metal, an alkanolamine, ammonium or a cation of a basic amino acid. a represents 1 or 2. ] [Chemical 3] [In the formula, R ³ represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms, M ² and M ³ are the same or different and each represents a hydrogen atom, an alkali metal, an alkanolamine, ammonium or a cation of a basic amino acid. Represent However, M ² , M ³
Are not both hydrogen atoms. ] [Chemical 4] [In the formula, R ⁴ represents a linear or branched alkyl group or alkenyl group having 8 to 18 carbon atoms, M ⁴ is an alkali metal,
Represents the cation of an alkaline earth metal, alkanolamine, ammonium or basic amino acid. n ⁴ is the number of charges in the M ⁴ cation. b shows the positive number of 1-16. ] [Chemical 5] [In the formula, R ⁵ represents an alkyl or alkenyl group having 8 to 18 carbon atoms, M ⁵ and M ⁶ are the same or different, and are an alkali metal, alkaline earth metal, alkanolamine, ammonium or a cation of a basic amino acid. Represents n ⁵ and n ⁶ are the numbers of charges in the cations of M ⁵ and M ⁶ , respectively. c is 0
Or, a positive number of 1 to 7 is shown. ] [Chemical 6] [In the formula, R ⁵ , M ⁵ , M ⁶ , n ⁵ , n ⁶ and c are as described above. ] [Chemical 7] [In the formula, R ⁶ represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms, M ⁷ and M ⁸ are the same or different and are an alkali metal, alkaline earth metal, alkanolamine, ammonium or a basic amino acid cation. Represents an ion. n ⁷ , n ⁸
Are the numbers of charges in the cations of M ⁷ and M ⁸ , respectively. d represents 0 or a positive number of 1 to 7. ] [Chemical 8] [In the formula, R ⁶ , M ⁷ , M ⁸ , n ⁷ , n ⁸ and d are as described above. ] [Chemical 9] [In the formula, R ⁷ represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms, and M ⁹ represents an alkali metal, an alkaline earth metal, an alkanolamine, ammonium or a cation of a basic amino acid. n ⁹ is the number of charges in the cation of M ⁹ . e is 0 or a positive number of 1 to 7. ] (C) 1 type (s) or 2 or more types of fatty acid diethanolamide represented by General formula (10). [Chemical 10] [In the formula, R ⁸ represents an alkyl group or an alkenyl group having 7 to 17 carbon atoms. ]