JPH1053795A - Detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a detergent composition which has a low viscosity, excellent foam quality and high detergency, and can be used in less quantity by using a specified salt of a sulfuric ester or a glycolic acid N-alkylamide in combination with another surfactant as needed. SOLUTION: The salt of a sulfuric ester of a glycolic acid N-alkylamide used is represented by formula I: R<1> R<2> NCOCH2 OSO3 M [wherein R<1> is a 6-22C alkyl or alkenyl; R<2> is a 1-22C alkyl, alkenyl or H; and M is H, an alkali (alkaline earth) metal, NH4 , a 1-22C alkylammonium, a 1-18C alkyl-or alkenyl- substituted pyridinium, or basic amino acid], preferably CH3 (CH2 ) NHCOCH2 OSO3 Na in particular. The surfactant used together preferably comprises an anionic surfactant, with the ratio of the surfactant to the salt being (1:8) to (8:1). The total content of surfactants is 30-80wt.%. This detergent composition has a viscosity (30 deg.C) of preferably 100-3,000cP, a foam quality (modulus of elasticity) of at most 200dyne/cm<2> and a detergency of at least 90%.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention relates to a detergent composition, especially a low-viscosity and extremely high-foaming foam which contains a high concentration of a surfactant and is preferably used for skin and hair. TECHNICAL FIELD The present invention relates to a detergent composition having a property and a detergency.

[0002]

2. Description of the Related Art Surfactants used in detergents, especially in hair cleansing agents, are required to have high foaming properties and high detergency, so that alkyl sulfates and polyoxyalkyl ether sulfates are used. Are mainly used. In recent years, with the increase in awareness of hair damage, polymers with conditioning effects and silicones have been incorporated into hair cleansers.However, when these ingredients are incorporated in large amounts, There is a problem that the foaming property and the cleaning property of the cleaning agent are reduced.

[0003]

For this reason, in order to maintain the foaming property and the cleaning property of the detergent, it has been attempted to increase the blending amount of the surfactant. Although the foaming and cleaning properties are excellent, the viscosity increases remarkably as the blending amount in the cleaning agent increases,
It becomes extremely difficult to use as a cleaning agent. In order to prevent such a thickening of the detergent, a thickener such as polyethylene glycol such as PEG-300 is used. However, as the amount of the surfactant is increased, the viscosity is reduced. It was necessary to increase the use amount of the thickener, and as a result, foaming was impaired, and the effect of merely increasing the blending amount of the surfactant (hereinafter, sometimes referred to as “concentration”) could not be obtained. In addition, a conditioning polymer and the like also have a thickening effect, so that a required amount of the polymer could not be added to the detergent. For this reason, we have developed a highly concentrated detergent that contains a high concentration of surfactant, has low viscosity, high foaming properties and high detergency, and can be blended with the required amount of conditioning polymer. Was eagerly awaited.

[0004]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies in view of such circumstances, and as a result, a surfactant containing a specific glycolic acid N-alkylamide sulfate salt has been found to have a high surfactant content. The present inventors have found that the present invention is useful for obtaining a concentrated detergent, and have completed the present invention. That is, the present invention contains a glycolic acid N-alkylamide sulfate represented by the general formula (1) and has a surfactant content of 30.
It is intended to provide a highly concentrated detergent composition having a low viscosity and excellent foaming properties and detergency, which is characterized by being about 80% by weight. R ¹ R ² NCOCH ₂ OSO ₃ M (1) (wherein, R ¹ represents a straight-chain or branched-chain alkyl or alkenyl group having 6 to 22 carbon atoms, and R ² represents 1 to 1 carbon atoms)
22 represents an alkyl group, an alkenyl group or a hydrogen atom,
M is a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium, an alkanol ammonium having 2 to 9 carbon atoms,
The alkylammonium or alkenylammonium having 1 to 22 carbon atoms, the alkyl or alkenyl-substituted pyridinium having 1 to 18 carbon atoms, or the basic amino acid is shown. )

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The structure of the highly concentrated cleaning composition of the present invention will be specifically described below. The present invention uses a specific glycolic acid N-alkyl amide sulfate represented by the above general formula (1) in combination with another surfactant as required, thereby enabling a highly-concentrated washing for practical use for the first time. Is obtained. In the general formula (1), R ¹ represents a straight-chain or branched-chain alkyl group or alkenyl group having 6 to 22 carbon atoms. , Hexyl, octyl, decyl, dodecyl, tetradecyl, hexadecyl, octadecyl, isostearyl, eicosyl, groups such as docosyl,
A linear or branched alkyl group having 6 to 22 carbon atoms is preferred from the viewpoint of foaming property, and a linear alkyl group having 8 to 18 carbon atoms is particularly preferred. R ² represents an alkyl group having 1 to 22 carbon atoms, an alkenyl group or a hydrogen atom.
22 alkyl or alkenyl groups include methyl,
In addition to ethyl, propyl, and butyl, the alkyl group or the alkenyl group exemplified for the above R ¹ can be mentioned. As R ² , a hydrogen atom is particularly preferred from the viewpoints of foamability and detergency.

M represents a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium, an alkanolammonium having 2 to 9 carbon atoms, an alkylammonium or alkenylammonium having 1 to 22 carbon atoms, or an alkyl or alkenyl substituted with 1 to 18 carbon atoms. The term "pyridinium" or "basic amino acid" refers to ammonium, sodium, potassium, or alkanol ammonium having 2 to 9 carbon atoms in terms of foamability, and more preferable are ammonium, sodium, and triethanol ammonium.

Preferred examples of the glycolic acid N-alkylamide sulfate represented by the above general formula (1) of the present invention include the following compounds.

CH ₃ (CH ₂ ) ₁₁ NHCOCH ₂ OSO ₃
NH ₄ , CH ₃ (CH ₂ ) ₉ NHCOCH ₂ OSO ₃ N
H ₄ , CH ₃ (CH ₂ ) ₁₁ NHCOCH ₂ OSO ₃ Na,
CH ₃ (CH ₂ ) ₉ NHCOCH ₂ OSO ₃ Na, CH ₃ (C
_{H 2) 11 NHCOCH 2 OSO 3} K, CH 3 (CH 2) 9 NH
COOSO ₃ K. Among these compounds, CH ₃ (CH ₂ ) ₁₁ NHCOC
H ₂ OSO ₃ Na is particularly preferred in terms of foaming properties, detergency and the like. These glycolic acid N-alkylamide sulfates are disclosed in JP-A-7-2679, which has already been proposed by the present applicant.
It can be produced by the method described in JP-A-17.

[0009] These glycolic acid N-alkyl amide sulfates can be used alone or in combination with other surfactants. Other surfactants used in combination, anionic surfactants, cationic surfactants,
Any surfactant commonly used in cleaning compositions such as nonionic surfactants and amphoteric surfactants can be used, but as a hair cleaning agent, anionic surfactants can be used in combination. It is preferable in terms of foaming properties and cleaning properties. Further, a nonionic surfactant and / or an amphoteric surfactant can be further added to the detergent containing the glycolic acid N-alkylamide sulfate and an anionic surfactant. Further, the cleaning composition of the present invention contains components commonly used for cleaning agents such as a conditioning polymer, a silicone derivative, a humectant, a bactericide, an emulsifier, and a fragrance as long as the effects of the present invention are not impaired. What you can do is, of course.

In the present invention, the use of a specific glycolic acid N-alkylamide sulfate represented by the above general formula (1) as a surfactant to be incorporated in a detergent makes it possible to obtain a high-concentration surfactant for the first time. And a highly concentrated detergent which has a low viscosity, a high foaming property and a high detergency, and can be blended with a required amount of a conditioning polymer or the like. The content of the surfactant in the detergent composition of the present invention is 30 to 80% by weight, preferably 3% by weight, as the dry weight of the surfactant.
5 to 70% by weight. When the content of the surfactant is 30% by weight or less, foaming is poor, and no remarkable improvement is observed even when compared with a conventional low-concentration detergent. On the other hand, when the content of the surfactant exceeds 80% by weight, the viscosity is increased and foaming is rather deteriorated, which is not preferable.

When the glycolic acid N-alkylamide sulfate represented by the general formula (1) is used in combination with another surfactant as the surfactant to be incorporated in the detergent, the glycolic acid N-alkylamide The mixing ratio of the sulfate ester to the other surfactant is set to 1: 8 to 8: 1 so that the content of the entire surfactant falls within the above range.

Anionic surfactants used in combination with glycolic acid N-alkylamide sulfates include (1)
A linear or branched alkylbenzene sulfonate having an alkyl group having an average of 10 to 16 carbon atoms, (2) having a linear or branched alkyl or alkenyl group having an average of 10 to 20 carbon atoms, and having an average in one molecule; It has 0.5 to 8 moles of ethylene oxide, propylene oxide, butylene oxide,
/9.9 to 9.9 / 0.1 or ethylene oxide and butylene oxide are added in a ratio of 0.1 / 9.9 to 9.9.
(3) alkyl or alkenyl sulfate having an alkyl group or alkenyl group having an average of 10 to 20 carbon atoms, (4) alkyl or alkenyl sulfate having an average of 10 to 20 carbon atoms. An olefin sulfonate having in one molecule, (5) an alkane sulfonate having an average of 10 to 20 carbon atoms in one molecule,
(6) a saturated or unsaturated fatty acid salt having an average of 10 to 24 carbon atoms in one molecule, (7) an alkyl or alkenyl group having an average of 10 to 20 carbon atoms, and having an average of 0.5 in one molecule. 8 moles of ethylene oxide, propylene oxide, butylene oxide, or ethylene oxide and propylene oxide are 0.1 / 9.9-9.9 / 0.1
Or an alkyl or alkenyl ether carboxylate in which ethylene oxide and butylene oxide are added in a ratio of 0.1 / 9.9 to 9.9 / 0.1, (8) from an average of 10 to 20 carbon atoms Α-sulfofatty acid salt or ester having an alkyl group or an alkenyl group,
(9) an N-acylamino acid type surfactant having an acyl group having 8 to 24 carbon atoms and a free carboxylic acid residue, (10)
Phosphoric acid mono- or diester-type surfactants having an alkyl group or alkenyl group having 8 to 24 carbon atoms, (11) sulfosuccinates such as higher alcohols having 8 to 22 carbon atoms or ethoxylates thereof, and sulfosuccinates derived from higher fatty acid amides Acid esters and the like. Among these, (2) polyoxyalkylene alkyl or alkenyl ether sulfate, (3) alkyl or alkenyl sulfate, and (11) sulfosuccinate are preferred. These anionic surfactants include 1
Species or a combination of two or more can be used as appropriate.

The nonionic surfactant used in the cleaning composition of the present invention includes (12) polyoxyalkylene or alkenyl groups having an average of 10 to 20 carbon atoms and having 1 to 20 mol of ethylene oxide added thereto. Ethylene alkyl or alkenyl ether, (13) average carbon number of 6-1
Polyoxyethylene alkyl phenyl ether having 2 alkyl groups and 1 to 20 moles of ethylene oxide, (14) 1 to 20 moles of propylene oxide having an alkyl or alkenyl group having an average of 10 to 20 carbon atoms (15) a polyoxybutylene alkyl or alkenyl ether having an alkyl group or alkenyl group having an average of 10 to 20 carbon atoms and having 1 to 20 mol of butylene oxide added thereto, (16) ) Nonionic surfactants having an alkyl group or alkenyl group having an average of 10 to 20 carbon atoms and having a total of 1 to 30 mol of ethylene oxide and propylene oxide or ethylene oxide and butylene oxide added thereto (ethylene oxide and propylene oxide or butylene oxide) When The ratio is 0.1 / 9.9 to 9.9 / 0.
1), (17) alkyl monoethanolamide or alkyl diethanolamide having an average of 7 to 21 carbon atoms or an ethylene oxide 1 to 10 mol adduct thereof, (1)
8) a sucrose fatty acid ester composed of a fatty acid having an average of 10 to 20 carbon atoms and sucrose, (19) a glycerin fatty acid monoester composed of a fatty acid having an average of 6 to 20 carbon atoms and glycerin, and (20) a general formula (2). Alkyldimethylamine oxide,

[0014]

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(Wherein R ³ represents a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms);

(21) Alkyl saccharide type nonionic surfactant represented by the general formula (3) R ⁴ —O— (R ⁵ O) _S — (G) _t (3) (where R ⁴ is carbon A linear or branched alkyl or alkenyl group having 6 to 18 carbon atoms, R ⁵ represents an alkylene group having 2 to 4 carbon atoms, and G represents a residue derived from a reducing sugar having 5 or 6 carbon atoms. , S represents a number of 0 to 10, and t represents a number of 1 to 10).

In the alkyldimethylamine oxide represented by the general formula (2), R ³ has 10 to 16 carbon atoms.
The alkyl group is preferably a decyl group, a lauryl group, or a myristyl group. In the alkyl saccharide type nonionic surfactant represented by the general formula (3), in the formula, R ⁴ is preferably an alkyl group having 8 to 14 carbon atoms, particularly decyl group, dodecyl group (lauryl group) and tetradecyl group. Is preferred, and R ⁵ is preferably an ethylene group or a propylene group. The structure of G is determined by a monosaccharide or two or more saccharides used as a raw material, and glucose, galactose and fructose are particularly preferable. S is preferably from 0 to 2, and t is preferably from 1 to 2. Particularly, an alkyl polyglycoside in which S is 0 and G is a residue derived from glucose is preferable. These nonionic surfactants can be used alone or in an appropriate combination of two or more.

The amphoteric surfactants used in the detergent composition of the present invention include (22) carbobetaine, amidobetaine and sulfobetaine having an alkyl, alkenyl or acyl group having 8 to 24 carbon atoms. And hydroxysulfobetaine-based, amidosulfobetaine-based, imidazolinium betaine-based, and phosphobetaine-based amphoteric surfactants. Examples of the counter ion of the anionic residue of these amphoteric surfactants include an alkali metal ion such as sodium and potassium, an alkaline earth metal ion such as calcium and magnesium, an ammonium ion, and an alkanol group having 2 or 3 carbon atoms. Alkanolamines having up to 3 (eg, monoethanolamine,
Diethanolamine, triethanolamine, triisopropanolamine) and the like. Examples of the counter ion of the cationic residue include halogen ions such as chlorine, bromine and iodine, methosulfate and saccharinate ions. Examples of the amphoteric surfactant other than the above include (23) amidoamine-type amphoteric surfactants, and those represented by the following formula (4) or (5) are preferable.

[0019]

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[0020]

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Wherein R ⁶ and R ⁸ each have 7 to 1 carbon atoms.
9 represents a saturated or unsaturated hydrocarbon group, R ⁷ and R ⁹ represent groups —CH ₂ COOM or —CH ₂ CH ₂ COOM (where M represents an alkali metal or alkanolamine), and R ¹⁰ represents hydrogen atom or a group -CH ₂ COOM or -CH ₂
CH ₂ COOM (M is the same as above). ]

The expression represented by the above formula (4) includes 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-myristoyl-N'-carboxyethyl-N ' -(2-hydroxyethyl) ethylenediamine, N-palmitoyl-N'-carboxymethyl-N '
Salts such as-(2-hydroxyethyl) ethylenediamine and N-palmitoyl-N'-carboxyethyl-N '-(2-hydroxyethyl) ethylenediamine can be mentioned.

The compound represented by the above formula (5) includes N-lauroyl-N- (2-hydroxyethyl)-
N'-carboxymethylethylenediamine, N-lauroyl-N- (2-hydroxyethyl) -N ', N'-bis (carboxymethyl) ethylenediamine, N-lauroyl-N- (2-hydroxyethyl) -N', N '-Bis (carboxyethyl) ethylenediamine, N-myristoyl-N- (2-hydroxyethyl) -N'-carboxymethylethylenediamine, N-myristoyl-N-
(2-hydroxyethyl) -N'N'-bis (carboxymethyl) ethylenediamine, N-myristoyl-N-
(2-hydroxyethyl) -N ', N'-bis (carboxyethyl) ethylenediamine, N-palmitoyl-N
-(2-hydroxyethyl) -N'-carboxymethylethylenediamine, N-palmitoyl-N- (2-hydroxyethyl) -N ', N'-bis (carboxymethyl) ethylenediamine, N-palmitoyl-N- (2-
Salts such as (hydroxyethyl) -N 'and N'-bis (carboxyethyl) ethylenediamine can be mentioned.
These amphoteric surfactants can be used alone or in an appropriate combination of two or more.

The amidoamine type amphoteric surfactant represented by the formula (4) or (5) easily contains inorganic salts as impurities, but the content of the inorganic salts as impurities in the composition is low. It is preferable to desalinate to 1% by weight or less, since it is particularly excellent in storage stability, good in foaming, and can give a moist feeling to dried hair.

In a conventional detergent, the viscosity of the detergent is significantly increased as the amount of the surfactant is increased. Therefore, a polyethylene glycol which is liquid at room temperature, such as PEG-300, is used as a viscosity reducing agent. I was In this case, as the amount of the surfactant is increased (concentrated), it is necessary to increase the amount of the viscosity reducing agent. However, as the amount of the polyethylene glycol is increased, the foaming performance of the detergent increases. As a result, the effect of only concentration was not obtained. The detergent composition of the present invention has a low viscosity and extremely high foamability and detergency despite containing a high concentration of a surfactant without using polyethylene glycols. That is, the preferred cleaning composition of the present invention comprises PEG-3 which reduces foam performance.
It is characterized in that it does not substantially contain polyethylene glycol which is liquid at room temperature such as 00.

Next, the properties of the cleaning composition of the present invention will be described in more detail. The viscosity of the cleaning composition of the present invention is 100 to 3000 cps, preferably 100 to 150 cps when measured at 30 ° C. using a B-type viscometer.
Adjust so as to be 0 cps. When the viscosity is less than 100 cps, the cleaning agent is too much out of the container at the time of use, so that the usability is deteriorated. On the other hand, when the viscosity is more than 3000 cps, inconveniences such as being difficult to remove from the container and squeaking during use arise.

The foam quality of the cleaning composition of the present invention is as follows when measured at 30 ° C. using a rheometer.
It is preferable that the elastic modulus is 200 dyn / cm ² or less, preferably 150 dyn / cm ² or less, and the tan δ representing softness is 1.5 or more, preferably 2.0 or more. .

Other methods for measuring the cleaning rate and the amount of the cleaning composition of the present invention will be described in Examples.
The cleaning rate needs to be 90% or more. The smaller the amount used, the better. The cleaning composition of the present invention having the above properties has an appropriate viscosity while being highly concentrated,
Further, it has high foaming properties and excellent foam quality, and has extremely good detergency and usability. In addition, conventional cleaning agents required a usage amount of 10 g or more for one hair wash, but the cleaning composition of the present invention is a highly concentrated type, so the usage amount of 5 g or less for one hair wash is required. It is compact and economical.

[0029]

EXAMPLES The present invention will be described below in detail with reference to examples, but the present invention is not limited to these examples. In addition, the test method and evaluation standard of each characteristic of the viscosity measuring method, the foam quality measuring method, the cleaning rate measuring method, and the measuring method of the amount used in the examples are as follows. Hair cleansing compositions (Examples 1 to 6 of the present invention and Comparative Examples 1 to 3) having the compositions shown in the following Table 1 were prepared, and the viscosity, foam, cleaning rate, and amount used were examined by the following methods. Table 1 shows the results. <Viscosity measurement method> Using a B-type viscometer, the viscosity at 30 ° C was 30 rpm, Measured with 3 rotors. <Foam measurement method> Rheometer (Rheometrics:
rfs-II), 30 ° C., strain change 0.1-5
Under the conditions of 00% and a frequency of 20 rad / sec, the elastic modulus (dyn / cm ² ) and tan δ (ratio of viscous term to elastic term: unitless) of the foam were measured, and the hardness and softness of each foam were measured. Used as an indicator.

<Measurement Method of Detergency> A solution of a detergent composition in 4% hard water was used as a 2.5% by weight solution for the examples of the present invention, and a 5% by weight solution for the comparative example was used as artificial soil. 100 rpm at 40 ° C with 5 pieces of stained cloth coated with
m, washed with a tergotometer for 10 minutes, rinsed under running water and iron-pressed.
The cleaning rate was calculated from the reflectance at 0 nm. 1) Evaluation A: extremely good (cleaning rate of 90% or more) B: good (cleaning rate of 80% to less than 90%) C: slightly good (cleaning rate of 70% to less than 80%) D: poor (cleaning rate of less than 70%) <Measurement of usage> Evaluation was performed by 20 specialized panelists according to the following evaluation criteria. The results were based on the following criteria based on the average score of 20 subjects. 1) Evaluation The usage amount is 50% or less as compared with Comparative Example 1; 4 The usage amount is 51 to 75% as compared with Comparative Example 1; 3 The usage amount is 76 to 99% as compared with Comparative Example 1; 2 Comparative Example 1 1 2) Judgment average score 3.5-4.0; A average score 2.5-3.4; B average score 1.5-2.4; C average score 1. 0-1.4; D

[0031]

[Table 1]

(Notes in Table 1) a) DK-ester SL-18A (manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) b) Polymer JR-400 (manufactured by UCC) c) A cationic compound of corn starch having a cationization degree of 0.3 D) Homopolymer of dimethyldiallylammonium salt (Merck)

From the above examples, it can be seen that the detergent composition of the present invention has a low viscosity despite containing a high concentration of a surfactant, and has excellent foam quality and high detergency. It can be seen that the material has extremely high practical value, such as good use amount.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Naoki Sato 2-3-1 Bunka, Sumida-ku, Tokyo Kao Corporation Tokyo Research Laboratory

Claims (8)

[Claims] 1. A glycolic acid N- represented by the general formula (1)
A detergent composition comprising an alkyl amide sulfate salt and a surfactant content of 30 to 80% by weight. R ¹ R ² NCOCH ₂ OSO ₃ M (1) (wherein, R ¹ represents a straight-chain or branched-chain alkyl or alkenyl group having 6 to 22 carbon atoms, and R ² represents 1 to 1 carbon atoms)
22 represents an alkyl group, an alkenyl group or a hydrogen atom,
M represents a hydrogen atom, an alkali metal, an alkaline earth metal, ammonium, alkyl ammonium or alkenyl ammonium having 1 to 22 carbon atoms, alkyl or alkenyl substituted pyridinium having 1 to 18 carbon atoms, or a basic amino acid. ) 2. The glycolic acid N- represented by the general formula (1)
The cleaning composition according to claim 1, further comprising an anionic surfactant as a surfactant other than the alkylamide sulfate salt. 3. The cleaning composition according to claim 1, further comprising a nonionic surfactant and / or an amphoteric surfactant. 4. The cleaning composition according to claim 1, wherein the cleaning composition contains substantially no polyethylene glycol. 5. The cleaning composition according to claim 1, wherein the content of the surfactant is 35 to 70% by weight. 6. The viscosity of the detergent composition is 100 to 3000 c.
ps.
The cleaning composition according to Item. 7. The foam composition of the present invention has a foam having an elastic modulus of 200 d.
The cleaning composition according to any one of claims 1 to 6, wherein yn / cm ² or less and tan δ is 1.5 or more. 8. The method according to claim 1, wherein 5 g or less of the cleaning composition is used for one hair wash.