JP3423809B2 - Detergent composition - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detergent composition which is mild to the skin and is excellent in detergency and foamability.

[0002]

2. Description of the Related Art Nonionic surfactants are often mild to the skin. Of these, polyoxyethylene alkyl ether type is excellent in detergency, has less irritation than anionic surfactants, and is generally cheaper than alkyl saccharide nonionic surfactants. Therefore, it is a very attractive activator.

However, since the polyoxyethylene alkyl ether type nonionic surfactant has a drawback that it has a poor foaming property, it is the current situation that it is not used as a main base of a detergent. For example, JP-A-55
No. 25436 discloses a detergent composition in which a polyoxyethylene alkyl ether type surfactant, an amidoamine type amphoteric surfactant and an alkylolamine type nonionic surfactant are combined. The ethylene alkyl ether type nonionic surfactant was not used as a main base, and although the foamability was improved, the detergency was not always satisfactory.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to use a polyoxyethylene alkyl ether type nonionic surfactant as a main base, while taking advantage of the detergency and the low irritation, the foaming property. An object is to provide a detergent composition having improved lowness.

[0005]

In view of such circumstances, the present inventors have conducted diligent research, and as a result, a specific polyoxyethylene alkyl ether type nonionic surfactant represented by the following general formula (1) , Specific amide ether type carboxylic acid represented by the following general formula (2) , betaine type surfactant
Represented by any one of the following formulas (5) to (8)
It was found that by using a combination of specific nonionic surfactants that are used, it is possible to obtain a detergent composition that is excellent in detergency and foamability and that is mild to skin.
The present invention has been completed.

That is, the present invention provides the following component (A) :
(B), (C) and (D) : (A) General formula (1)

[0007]

[Chemical 7]

[In the formula, R ¹ represents a linear or branched alkyl or alkenyl group having 11 to 15 carbon atoms, and m is 11
A nonionic surfactant represented by the formula (2)

[0009]

[Chemical 8]

[Wherein R ² represents a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms or a phenyl group substituted with a linear or branched alkyl group having 5 to 23 carbon atoms, R ³ represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms, — (CH ₂ CH ₂ O) _n —CH ₂ COOM or — (CH ₂ CH ₂ O) _n H, and M represents a hydrogen atom, an alkali metal, Indicates an alkaline earth metal, ammonium, alkanolamine or basic amino acid residue, n is 1 to 20
Represents the number of] amido ether carboxylic acid or a salt thereof,

(C) Betaine type surfactant, (D) The following general formulas (5) to (8)

[0012]

[Chemical 9]

(In the formula, R ⁷ represents a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms)

[0014]

[Chemical 10]

(In the formula, R ⁸ represents a linear or branched alkyl or alkenyl group having 6 to 18 carbon atoms, R ⁹ represents an alkylene group having 2 to 4 carbon atoms, and G represents 5 or 6 carbon atoms. Represents a residue derived from a reducing sugar of, s is an integer of 0 to 10, and t is
Indicates a number from 1 to 10)

[0016]

[Chemical 11]

(In the formula, only one of R ¹⁰ , R ¹¹ and R ¹² is O = CR ¹³ (R ¹³ represents a linear or branched alkyl or alkenyl group having 8 to 12 carbon atoms) Indicates
The other two are hydrogen atoms.)

[0018]

[Chemical 12]

(In the formula, R ¹⁴ represents a linear or branched alkyl group or alkenyl group having 8 to 16 carbon atoms, and u and v
Each represent an integer of 0 to 10, and at least one of u and v is 1 or more), and a cleaning composition containing one or more selected from nonionic surfactants It is a thing.

Component (A) polyoxyethylene alkyl ether type nonionic surfactant used in the present invention (1)
Has a high detergency even when used alone, and when combined with the component (B), a high foaming power can be obtained. For this purpose, it is necessary that the compound is represented by the general formula (1), and the number of carbon atoms in the R ¹ group is 11 to 1
5, and the number m of ethylene oxide used is 11 to 30. Examples of the alkyl group having 11 to 15 carbon atoms represented by R ¹ include an undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group and a pentadecyl group, and an alkenyl group includes an undecenyl group, a dodecenyl group,
Examples thereof include tridecenyl group, tetradecenyl group and pentadecenyl group. These alkyl groups or alkenyl groups may be linear or branched. R ¹
Has 11 to 15 carbon atoms and m has 11 to 30 carbon atoms, and particularly R ¹ has 12 to 14 carbon atoms and m has 15 to 25 carbon atoms.
Those having the above properties are preferable because higher detergency and foamability can be obtained. Specific preferred examples of the component (A) include those in which R ¹ is dodecyl and the number of ethylene oxide moles is 15 to 20.

In the present invention, since the component (A) is blended as a main base, it is preferably blended in an amount of 5 to 50% by weight (hereinafter simply referred to as "%") in the entire composition, and particularly 5
It is preferable to add -30%, more preferably 5-20% from the viewpoint of irritation and the like.

The amide ether carboxylic acid or salt thereof as the component (B) used in the present invention is represented by the above general formula (2). Examples of the alkyl group having 5 to 23 carbon atoms represented by R ² in the formula (2) include a pentyl group, a hexyl group, a peptyl group, an octyl group, a nonyl group,
Decyl group, undecyl group, dodecyl group, tridecyl group,
Examples thereof include tetradecyl group, pentadecyl group, hexadecyl group, heptadecyl group, octadecyl group, nonadecyl group, eicosyl group, henicosyl group, docosyl group and tricosyl group. Further, as the alkenyl group having 5 to 23 carbon atoms, for example, a pentenyl group, a hexenyl group, a heptenyl group, an octenyl group, a nonenyl group, a decenyl group, an undecenyl group, a dodecenyl group, a tridecenyl group, a tetradecenyl group, a pentadecenyl group, a hexadecenyl group, Examples thereof include a heptadecenyl group, an octadecenyl group, a nonadecenyl group, an eicosenyl group, a henicocenyl group, a docosenyl group and a tricosenyl group. These alkyl groups or alkenyl groups may be linear or branched.
Of these groups, those having 7 to 17 carbon atoms, particularly 10
The thing of -15 is preferable at a foaming point. Further, R ³ is preferably a hydrogen atom, and n represents a number of 1 to 20, but 1 to 10, particularly 1 to 7 is preferable in terms of foaming property and the like.

M is a hydrogen atom; alkali metal salts such as sodium and potassium; alkaline earth metal salts such as calcium and magnesium; ammonium salts; alkanolamine salts such as triethanolamine; lysine, arginine, glutamine, asparagine, etc. Basic amino acid salt thereof, and the like, and sodium, magnesium, and triethanolamine are particularly preferable.

As the amide ether carboxylic acid or salt thereof as the component (B), R ² is C ₁₁ H ₂₃ , R ³ is H, and n is 2
It is preferable that M is Na or Mg in the range of 3 to 3.

The amide ether carboxylic acid as the component (B) can be used alone or in combination of two or more,
It is preferably blended in an amount of 0.1 to 30% in the entire composition, and particularly preferably blended in an amount of 1 to 20%, more preferably 5 to 15%, since it does not have a slimy feel and has a high foaming power.

The detergent composition of the present invention may further contain the following components (C) and (D), whereby the detergency and foaming power can be further enhanced.

The betaine-type surfactant as the component (C) may be any of carbobetaine-type, sulfobetaine-type, imidazolium-betaine-type and the like, among which the following general formula (3) or (4)

[0028]

[Chemical 13]

[Wherein R^FourIs substituted with a hydroxyl group
Good straight or branched chain alkyl alcohol with 8 to 20 carbon atoms
Or alkenyl group or R^FiveCONH (CH₂)_z-(
R here^Five Is 8 to 8 carbon atoms which may be substituted with a hydroxyl group.
20 straight or branched chain alkyl or alkenyl groups are shown.
, Z represents an integer of 1 to 5), and R^FiveIs a hydroxyl group
Shows an optionally substituted alkylene group having 1 to 5 carbon atoms.
, Y is an integer of 1 to 5, M is a hydrogen atom, alkali
Represents a metal or triethanolamine]
Is preferred. Furthermore, the carbo represented by the general formula (3)
Betaine-type surfactants include fatty acid amide propyl
Betaine is preferable, and R in formula (3) is particularly preferable.^FourHas 9 carbons
Those having an alkyl group of ~ 15 are preferred because of their high foaming power.
Good In addition, the sulfobetatai represented by the general formula (4)
Alkyldimethylaminohydroxide
Roxysulfobetaine is preferred, especially R in formula (4)
^FourIs an alkyl group having 9 to 15 carbon atoms, and R^FiveBut 2-hi
Those having a droxypropylene group are preferred.

The betaine type surfactant as the component (C) is 1
It is possible to use one kind or a combination of two or more kinds, and it is preferable to add 1 to 10% in the whole composition, and particularly 1 to 5%.
%, And further 1 to 3% is preferable because the irritation can be further lowered.

The component (D) has the following general formulas (5) to (8).

[0032]

[Chemical 14]

(In the formula, R ⁷ represents a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms)

[0034]

[Chemical 15]

(In the formula, R ⁸ represents a linear or branched alkyl or alkenyl group having 6 to 18 carbon atoms, R ⁹ represents an alkylene group having 2 to 4 carbon atoms, and G represents 5 or 6 carbon atoms. Represents a residue derived from a reducing sugar of, s is an integer of 0 to 10, and t is
Indicates a number from 1 to 10)

[0036]

[Chemical 16]

(In the formula, only one of R ¹⁰ , R ¹¹ and R ¹² is O = CR ¹³ (R ¹³ represents a linear or branched alkyl or alkenyl group having 8 to 12 carbon atoms)). Shown, the other two are hydrogen atoms)

[0038]

[Chemical 17]

(In the formula, R ¹⁴ represents a linear or branched alkyl or alkenyl group having 8 to 16 carbon atoms, u and v each represent an integer of 0 to 10, and at least one of u and v is 1 It is one or more selected from nonionic surfactants represented by the above).

As the alkyldimethylamine oxide represented by the general formula (5), in the formula, R ⁷ has 10 to 10 carbon atoms.
16 alkyl groups are preferred, especially a decyl group,
A lauryl group and a myristyl group are preferred. In the alkyl saccharide represented by the general formula (6), in the formula, R
⁸ is preferably an alkyl group having 10 to 14 carbon atoms,
Particularly, a decyl group, a dodecyl group and a tetradecyl group are preferable, and R ⁹ is preferably an ethylene group or a propylene group. The structure of G is determined by a monosaccharide or a saccharide having two or more sugars used as a raw material, and glucose, galactose and fructose are particularly preferable. s is preferably 0 to 2, and t is preferably 1 to 2. As the alkyl saccharide (6), an alkyl polyglucoside in which s = 0 and G is a residue derived from glucose is particularly preferable. Further, in the fatty acid monoglyceride represented by the general formula (7), it is preferable that R ^{10 in} the formula has 8 to 12 carbon atoms. As the alkanolamide represented by the general formula (8), in the formula, R ¹⁴ preferably has 10 to ¹⁴ carbon atoms, and u and v are preferably 0 to 3.

Of these, the alkyldimethylamine oxide represented by the general formula (5) and the fatty acid monoglyceride represented by the general formula (7) are preferable because the foamability can be further enhanced, and the general formula (7) Among the fatty acid monoglycerides represented by), decanoic acid monoglyceride and lauric acid monoglyceride are preferable.

The component (D) nonionic surfactants may be used either individually or in combination of two or more. Particularly, it is preferable to use two or more of them in combination because the foaming property can be further enhanced. The nonionic surfactant as the component (D) is preferably contained in the composition in an amount of 1 to 10%, particularly 1 to 5%, and further 1 to 3% to obtain sufficient detergency and foamability. This is preferable because it does not impair the cleaning performance.

Further, in the detergent composition of the present invention,
The blending amount of the component (A) is a weight ratio (A) / [(C) + (D)] to the total blending amount of the components (C) and (D),
It is preferably in the range of 1/1 to 10/1, and particularly when the weight ratio is 3/2 to 3/1, the foaming property is further enhanced, which is preferable.

In addition, the detergent composition of the present invention may contain an anionic surfactant which is usually used in detergents and the like within a range that does not impair the effects of the present invention. Examples of such anionic surfactants include alkyl sulfates, alkyl ether sulfates, alkyl sulfonates,
Examples thereof include sulfosuccinic acid ester, α-sulfo fatty acid ester salt, α-olefin sulfonate, saturated or unsaturated fatty acid salt, phosphoric acid monoester type surfactant, acylated amino acid, acylated collagen, and acylated keratin.

Furthermore, the detergent composition of the present invention can contain a silicone derivative in a range that does not impair the effects of the present invention, and a good slippery feel and a smooth feel can be obtained. The silicone derivative is not particularly limited as long as it is usually blended with a detergent or the like, and for example, dimethylpolysiloxane, methylphenylpolysiloxane, polyether modified silicone, epoxy modified silicone, alkoxy modified silicone, amino modified silicone, etc. Is mentioned.

In addition to the above-mentioned components, the detergent composition of the present invention may optionally contain components usually added to cosmetics, pharmaceuticals, foods, etc., such as anti-dandruff agents, bactericides, anti-inflammatory agents, Medicinal agents, preservatives: propylene glycol, glycerin, diethylene glycol monoethyl ether, sorbitol,
Moisturizers such as panthenol; Colorants such as dyes and pigments; Conditioning agents such as perfluoropolyether;
Pearlizing agents, chitosan derivatives such as hydroxypropyl chitosan; various fragrances; other encyclopedias
Of Shampoo Ingredients [ENCYC
LOPEDIA OF SHAMPOO INGREDI
ENTS (MICELLE PRESS 1985
Years]] and the like can be appropriately blended within a range that does not impair the effects of the present invention.

The detergent composition of the present invention can be produced by a usual method, and can be made into a paste form, a gel form, a liquid form or the like. Further, it is suitable as a detergent for hair and body, and particularly suitable as a shampoo, a body shampoo, a face wash and the like.

[0048]

Industrial Applicability The detergent composition of the present invention is excellent in detergency and foaming property and has low irritation, and is useful as a detergent for hair and a detergent for body.

[0049]

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples.

Example 1 Inventive products 1 to 4 and comparative products 1 having the compositions shown in Table 1
The shampoo of No. 4 was manufactured by a conventional method, and its performance was evaluated according to the following evaluation criteria.

(Evaluation Criteria) Detergency: 20 g (15 cm) of hair of a healthy Japanese woman was coated with 1 g of shampoo liquid, washed for 1 minute and rinsed, and then the feel was determined by 20 professional panelists according to the following criteria. evaluated.

⊚: Very good (90% or more people felt good) ◯: Good. (80 to less than 90% of the people felt good) Δ: Somewhat bad. (70% to less than 80% of people felt good) x: Poor (Less than 70% felt good)

Foaming property: 800 ml of a 20 times diluted aqueous solution of shampoo liquid (liquid temperature 20 ° C.) was poured into a cylinder, a stirring blade was installed in the aqueous solution, the mixture was rotated for 5 minutes and then left standing for 30 seconds to foam. The following criteria were evaluated. The blade rotation speed was 1000 rpm, and the blades were reversed every 5 seconds.

A: Very good foaming. ◯: Good foaming. Δ: Foaming, but felt insufficient. X: Almost no foaming.

Skin irritation: By 20 expert panelists,
The operation of immersing the hand in each shampoo solution for 5 minutes and then drying was repeated 10 times, and evaluation was performed according to the following criteria.

⊚: 90% or more of the people felt that the irritation was low. A: 80 to 90% of people felt that the irritation was low. (Triangle | delta): 70-80% of persons felt the low irritation. X: Less than 70% of people felt that the irritation was low.

[0057]

[Table 1]

Example 2 (shampoo) A shampoo having the composition shown below was produced by a conventional method.

[0059]

[Table 2] Polyoxyethylene (20) lauryl ether 15 (%) Amido ether carboxylate ^{* 1} 3 Lauryl hydroxysulfobetaine 2 Monoglyceride decanoate 2 Hydroxyethyl cellulose (HEC-SE850, manufactured by Shin-Etsu Chemical Co., Ltd.) 0.1 Cationized Cellulose (JR 400, UCC) 0.3 Silicone (SM-8702C, Toray Dow Corning) 1.0 Citric acid Water balance meter 100

[0060]

[Chemical 18]

Example 3 (rinse-in shampoo) A rinse-in shampoo having the following composition was produced by a conventional method.

[0062]

[Table 3] Polyoxyethylene (18) lauryl ether 10 (%) amide ether carboxylate ^{* 2} 2 Laurate amidopropyl betaine 3 alkyl glycoside (in the formula (6), R ⁸ = C ₁₀ H ₂₁ , s = 0, t = 1.2) 1 Silicone emulsion (BY22-029, manufactured by Toray Dow Corning Co., Ltd.) 3 Ethylene glycol distearate 1 Citric acid Appropriate amount Dyes Appropriate amount Perfume Appropriate amount Water balance meter 100

[0063]

[Chemical 19]

The shampoos obtained in Examples 2 and 3 were
All of them were excellent in detergency and foamability and had little skin irritation.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ identification code FI C11D 1/72 C11D 1/72 1/90 1/90 (56) Reference JP-A-6-73394 (JP, A) JP JP-A 8-53696 (JP, A) JP-A 8-239689 (JP, A) JP-A 60-71031 (JP, A) JP-A 6-116123 (JP, A) JP-A 61-272294 (JP , A) JP 2-16199 (JP, A) JP 6-17095 (JP, A) JP 61-272295 (JP, A) JP 63-291996 (JP, A) JP 6-16534 (JP, A) JP 2-84496 (JP, A) JP 55-25436 (JP, A) JP 3-174496 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) C11D 1/00-17/08 A61K 7/075 A61K 7/50

Claims (2)

(57) [Claims] 1. The following components (A) , (B), (C) and
(D) : (A) General formula (1) [Wherein R ¹ represents a linear or branched alkyl or alkenyl group having 11 to 15 carbon atoms, and m represents a number of 11 to 30], (B) in general Formula (2) [In the formula, R ² represents a linear or branched alkyl or alkenyl group having 5 to 23 carbon atoms or a phenyl group substituted with a linear or branched alkyl group having 5 to 23 carbon atoms, and R ³ represents Hydrogen atom, alkyl group having 1 to 3 carbon atoms,
_{- (CH 2 CH 2 O)} n -CH 2 COOM or - (CH ₂ C
H ₂ O) _n H, M represents a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium, an alkanolamine or a basic amino acid residue, and n represents a number of 1 to 20]. Carboxylic acid or its salt (C) Betaine type surfactant, (D) The following general formulas (5) to (8) (In the formula, R ⁷ is a linear or branched alkyl group having 8 to 18 carbon atoms.
Represents a kill or alkenyl group ) (In the formula, R ⁸ is a linear or branched alkyl group having 6 to 18 carbon atoms.
R ⁹ represents a alkenyl or alkenyl group, and R ⁹ is an alkyl group having 2 to 4 carbon atoms.
Represents a alkylene group, G is derived from a reducing sugar having 5 or 6 carbon atoms
Represents a residue, s is an integer of 0 to 10, and t is 1 to 10
The number is shown below. (In the formula, only one of R ¹⁰ , R ¹¹ and R ¹² is O =
CR ¹³ (R ¹³ is a straight or branched chain alkyl having 8 to 12 carbon atoms.
And the other two are water.
Indicates elementary atom) (In the formula, R ¹⁴ is a linear or branched alkyl group having 8 to 16 carbon atoms.
Represents a kill or alkenyl group, and u and v are each 0 to
Indicates an integer of 10 and at least one of u and v is 1 or more
One addition selected from the nonionic surfactants represented by the a)
Is a detergent composition containing two or more kinds . 2. The component (A) is 5 to 50% by weight, the component (B) is 0.1 to 30% by weight, and the component (C) is 1 to 10% by weight.
And 1 to 10% by weight of the component (D), (A) /
[(C) + (D)] The cleaning composition according to claim 1, wherein the weight ratio is in the range of 1 / 1-10 / 1.