CN106473948B - Detergent composition - Google Patents
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- CN106473948B CN106473948B CN201510558062.9A CN201510558062A CN106473948B CN 106473948 B CN106473948 B CN 106473948B CN 201510558062 A CN201510558062 A CN 201510558062A CN 106473948 B CN106473948 B CN 106473948B
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Abstract
The invention provides a detergent composition, which comprises the following components (A) to (D): (A) an anionic surfactant having a carboxylic acid or salt thereof on a hydrophilic group selected from: 0.1 to 20 mass% of an alkyl ether carboxylic acid or a salt thereof, or an N-acylamino acid having a hydrogen atom bonded to one end of a nitrogen atom bonded to an acyl group or a salt thereof; (B) 0.1 to 30 mass% of an amphoteric surfactant; (C) 1 to 20 mass% of an inorganic salt, and (D) water.
Description
Technical Field
The present invention relates to a detergent composition.
Background
When people wash their bodies, in order to clean them, they usually use a bath lotion. However, in the case of allowing a child to wash his or her body independently, there is a problem that the body is not well foamed.
Therefore, there is a need for developing a novel foam body cleanser which can produce rich and fine foam and can be easily finely washed when used. This requires that the viscosity of the cleaning agent of foam-type formulation is low even at 5 ℃ to ensure that a fine foam is extruded.
Patent document 1 discloses a liquid skin cleansing composition having improved mildness and foamability, which comprises: from about 3 parts to about 10 parts by weight of an alkyl ethoxylated sulfate anionic surfactant having an average degree of ethoxylation of at least about 2.0; from about 3 parts to about 10 parts by weight of an amphoteric surfactant selected from the group consisting of betaine surfactants, imidazoline surfactants, aminoalkane carboxylate surfactants, and imido dialkane carboxylate surfactants, and mixtures thereof; from about 0.1 to about 3 parts by weight of an N-acyl amino acid surfactant or salt thereof, and from about 0.01 to about 0.5 parts by weight of a cationic cellulose ether derivative component.
However, there is no description in patent document 1 about lowering the low-temperature viscosity of the cleansing composition or improving the texture of the extruded foam.
Patent document 1: CN1136272A
Disclosure of Invention
The invention aims to provide a detergent composition which has low viscosity even at low temperature (about 5 ℃) and can obtain fine and thick foam when in use.
The inventor finds that: by incorporating a specific amount of a specific anionic surfactant, a specific amount of an amphoteric surfactant, and a specific amount of an inorganic salt in the composition, a low-temperature viscosity can be obtained, and a fine foam can be obtained when it is extruded from a foam pump.
The detergent composition of the present invention contains the following components (a) to (D): (A) an anionic surfactant having a carboxylic acid or salt thereof on a hydrophilic group selected from: 0.1 to 20 mass% of an alkyl ether carboxylic acid or a salt thereof, or an N-acylamino acid having a hydrogen atom bonded to one end of a nitrogen atom bonded to an acyl group or a salt thereof; (B) 0.1 to 30 mass% of an amphoteric surfactant; (C) 1 to 20 mass% of an inorganic salt, and (D) water.
The detergent composition of the present invention can obtain a low-temperature viscosity by blending the components having the above-mentioned composition and content, and can obtain a fine foam when it is extruded from a foam pump.
Drawings
Fig. 1 is an example of a photograph showing fine and dense foam.
Fig. 2 is an example of a photograph showing a foam that is fine but has a small amount of bubbles and does not contain liquid.
FIG. 3 is an example of a photograph showing a foam with larger bubbles and a small amount of liquid surrounding it.
Fig. 4 is an example of a photograph showing a foam in a liquid state.
Detailed Description
The detergent composition of the present invention contains the following components (a) to (D): (A) an anionic surfactant having a carboxylic acid or salt thereof on a hydrophilic group selected from: 0.1 to 20 mass% of an alkyl ether carboxylic acid or a salt thereof, or an N-acylamino acid having a hydrogen atom bonded to one end of a nitrogen atom bonded to an acyl group or a salt thereof; (B) 0.1 to 30 mass% of an amphoteric surfactant; (C) 1 to 20 mass% of an inorganic salt, and (D) water.
Component (A)
The component (a) in the detergent composition of the present invention is an anionic surfactant having a carboxylic acid or a salt thereof on a hydrophilic group, selected from: alkyl ether carboxylic acid or a salt thereof, or an N-acylamino acid in which one end of nitrogen bonded to an acyl group is bonded with hydrogen or a salt thereof. The use of this ingredient enables the composition to have a low temperature viscosity and to achieve a fine and thick foam when extruded from a container, particularly a foam pump.
1)Alkyl ether carboxylic acids or salts thereof
The alkyl ether carboxylic acid or a salt thereof in the component (a) used in the present invention is preferably represented by the following formula (1).
R-O-(CH2CH2O)nCH2-COOX (1)
(in the formula (1), R represents an alkyl group having 10 to 18 carbon atoms, n represents the number of addition mols of ethylene oxide, and is a number of 0.5 to 10, and X represents a hydrogen atom or a cation derived from an inorganic base or an organic base.)
In the formula (1), R is preferably an alkyl group having 12 to 16 carbon atoms, more preferably an alkyl group having 12 to 14 carbon atoms, from the viewpoint of easier maintenance of low viscosity at low temperature.
From the same viewpoint, R is preferably 2 or more alkyl groups having 12 to 16 carbon atoms and more preferably 2 or more alkyl groups having 12 to 14 carbon atoms.
From the same viewpoint, the number of addition mols n of ethylene oxide is preferably 1 to 7, more preferably 1 to 6, and still more preferably 1 to 4.
From the same viewpoint, the average molar number of addition of ethylene oxide is preferably 0.5 to 10, more preferably 2 to 7, even more preferably 2 to 5, and even more preferably 2 to 3.
From the same viewpoint, R is preferably an alkyl group having an average carbon number of 10 to 18, more preferably an alkyl group having an average carbon number of 12 to 16, and still more preferably an alkyl group having an average carbon number of 12 to 14.
Examples of X include hydrogen, alkali metals such as sodium and potassium, ammonium derived from alkanolamines such as monoethanolamine, diethanolamine and triethanolamine, and cations derived from basic amino acids such as arginine and lysine.
The alkyl ether carboxylic acid or a salt thereof in the present invention is preferably an alkyl ether carboxylic acid or a salt thereof having an alkyl group with 12 to 16 carbon atoms and an average number of moles of ethylene oxide added thereto of 1 to 8, more preferably an alkyl ether carboxylic acid or a salt thereof having an alkyl group with 12 to 14 carbon atoms and an average number of moles of ethylene oxide added thereto of 2 to 7, and still more preferably an alkyl ether carboxylic acid or a salt thereof having an alkyl group with 12 to 14 carbon atoms and an average number of moles of ethylene oxide added thereto of 2 to 5. In particular, it is preferably selected from: laureth-4 carboxylic acid or a salt thereof, laureth-6 carboxylic acid or a salt thereof, laureth-11 carboxylic acid or a salt thereof.
2)N-acylamino acid having hydrogen bonded to one end of nitrogen bonded to acyl group or salt thereof
The N-acylamino acid or salt thereof in the component (a) used in the present invention is preferably represented by the following formula (2).
R-CO-N(H)-(CH2)n-C(R1)-COOX (2)
(in the formula (2), R represents an alkyl group having 8 to 18 carbon atoms, n represents a number of 0, 1 or 2, and R1Is an amino acid side chain, and X represents a hydrogen atom or a cation derived from an inorganic base or an organic base. )
In the formula (2), R is preferably an alkyl group having 12 to 16 carbon atoms, more preferably an alkyl group having 12 to 14 carbon atoms, from the viewpoint of easier maintenance of low viscosity at low temperature.
Examples of X include hydrogen, alkali metals such as sodium and potassium, ammonium derived from alkanolamines such as monoethanolamine, diethanolamine and triethanolamine, and cations derived from basic amino acids such as arginine and lysine.
Examples of the N-acyl amino acid or a salt thereof in the present invention include N-acyl glycinate, N-acyl glutamate, N-acyl alanate, N-acyl aspartate and the like represented by the following formulae (3) to (6), and N-acyl glycinate is preferable, and potassium cocoyl glycinate is particularly preferable.
The content of the component (a) in the composition is 0.1% by mass or more, preferably 0.5% by mass or more from the viewpoint of maintaining low viscosity at low temperature and improving foam texture; 20% by mass or less, preferably 19% by mass or less, more preferably 10% by mass or less, and further preferably 5% by mass or less.
When the component (a) is an alkyl ether carboxylic acid or a salt thereof, its content in the composition is calculated as the content of its acid. When the component (A) is an N-acylamino acid having a hydrogen atom at one end of a nitrogen atom bonded to an acyl group or a salt thereof, the content thereof in the composition is calculated as the content of the salt thereof.
The detergent composition of the present invention may contain an anionic surfactant other than the component (a), but from the viewpoint of maintaining low viscosity, the content ratio of the component (a) to the total anionic surfactant in the composition is preferably 33% by mass or more, more preferably 77% by mass or more, further preferably 85% by mass or more, further preferably 95% by mass or more, and particularly preferably substantially 100% by mass.
Ingredient (B)
The component (B) in the detergent composition of the present invention is an amphoteric surfactant. The use of this ingredient can increase the amount of foaming and foam thickening of the composition.
The amphoteric surfactant as the component (B) is preferably at least one selected from the group consisting of alkyl betaines, alkyl thiobetaines, alkyl amide betaines, carbonyl betaines, sulfobetaines, imidazolinium betaines, alkyl glycinates, alkyl carboxyglycinates, alkyl amphopropionates, alkyl amphoglycinates, and amine oxide surfactants.
Further preferred examples of amphoteric surfactants include one or more of alkylamidopropyl betaine, alkylamidopropyl hydroxysultaine, alkylhydroxysultaine, and alkylamphoacetate.
More preferably, the component (B) is at least one of lauramidopropyl betaine and lauryl hydroxysulfobetaine.
The content of the component (B) in the composition is 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 1% by mass or more, and further preferably 3% by mass or more, from the viewpoint of improving the foam thickening property of the composition; 30% by mass or less, preferably 26% by mass or less, more preferably 20% by mass or less, and further preferably 15% by mass or less.
In the present invention, when the content of the component (a) is a and the content of the component (B) is B, the content of the component (a) and the component (B) is preferably such that (a +0.75B) is 22 mass% or less, preferably (a +0.75B) is in the range of 0.5 to 18 mass%, and more preferably (a +0.75B) is in the range of 2 to 16 mass%, from the viewpoint of maintaining low viscosity at low temperatures and obtaining fine and dense foam quality.
Ingredient (C)
The detergent composition of the present invention further contains an inorganic salt, preferably a soluble inorganic salt, as component (C). Thereby enabling further increase in foam thickening and foaming amount when the composition is used.
The soluble inorganic salt may be monovalent metal salt or divalent metal salt, preferably sodium salt or potassium salt, and preferably sodium chloride (NaCl) or sodium sulfate (Na) is contained in the soluble inorganic salt2SO4) Sodium hydrogen phosphate (Na)2HPO4) Sodium dihydrogen phosphate (NaH)2PO4) Sodium hexametaphosphate ((NaPO)3)6) Sodium pyrophosphate (Na)4P2O7·10H2O), potassium chloride (KCl) and potassium sulfate (K)2SO4) Potassium hydrogen phosphate (K)2HPO4) Potassium dihydrogen phosphate (KH)2PO4) Potassium hexametaphosphate ((KPO)3)6) Etc.; more preferably selected from sodium chloride (NaCl) and sodium sulfate (Na)2SO4) Sodium hexametaphosphate ((NaPO)3)6) Or sodium pyrophosphate (Na)4P2O7·10H2O) or more. More preferably at least one of sodium chloride (NaCl) and potassium chloride (KCl). More preferably, the composition contains sodium chloride (NaCl) and potassium chloride (KCl) at the same time.
The content of the inorganic salt in the composition is 1% by mass or more, preferably 3% by mass or more, more preferably 5% by mass or more, and further preferably 9% by mass or more from the viewpoint of further increasing the foam thickening property and the foaming amount and reducing the low-temperature viscosity of the composition; 20% by mass or less, preferably 19% by mass or less, and more preferably 15% by mass or less. In particular, when the inorganic salt content in the composition is 3% by mass or more, fine foam quality can be obtained when the extruded composition is diluted with water and kneaded.
Ingredient (D)
The detergent composition of the present invention contains water as the component (D). Water makes up the balance of the above ingredients and other ingredients of the detergent composition. The content of the component (D) is 30 mass% or more, preferably 50 mass% or more, more preferably 70 mass% or more, preferably 95 mass% or less, and further preferably 85 mass% or less in the entire composition.
Ingredient (E)
The detergent composition of the present invention may further contain a polyol as the component (E). Thereby enabling the viscosity of the composition to be further reduced.
The IOB value (i.e., the inorganic-organic ratio) of the polyol is preferably 1.05 to 3.33.
The IOB value is a ratio (Inorganic Organic Balance) of an Inorganic value and an Organic value obtained based on an Organic conceptual diagram (Tansylma, prediction of Organic compounds and Organic conceptual diagram, chemical field Vol.11, No.10(1957)719-725), and is obtained by the following formula.
Examples of the polyol include propylene oxide-added diglycidyl ether (IOB value of 1.05), dipropylene glycol (IOB value of 1.83), butanediol (IOB value of 2.5), and propylene glycol (IOB value of 3.33). Among propylene oxide-added diglycerol ethers, PPG-9 diglycerol ether is preferred.
From the viewpoint of further increasing the foam thickening property and reducing the viscosity, the content of the polyol as the component (E) in the composition is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, further preferably 1.5% by mass or more, preferably 15% by mass or less, more preferably 13% by mass or less, further preferably 7% by mass or less, and further preferably 3% by mass or less.
The detergent composition of the present invention may further contain ingredients used in general detergents, for example,
(1) surfactants other than the components (A) and (B) include, for example, nonionic surfactants such as alkyl glycosides.
(2) The cosurfactant is, for example, alkyl glyceryl ether such as ethylhexyl glyceryl ether.
(3) Humectants such as glycerin, sorbitol, and the like. The amount of the humectant to be used is preferably 2% by mass or less, more preferably 1% by mass or less, and still more preferably 0.5% by mass or less, from the viewpoint of keeping the viscosity and the dense foam quality at low temperatures.
(4) Oily components, for example, PEG-60 hydrogenated castor oil, sunflower oil, hydrogenated castor oil, etc. The amount of the oily component used is preferably 2% by mass or less, more preferably 1% by mass or less, and still more preferably 0.5% by mass or less, from the viewpoint of maintaining viscosity and thick foam quality at low temperatures.
(5) Germicides such as TRICLOSAN (TRICLOSAN), TRICLOCARBAN (TRICLOCARBAN), piroctone olamine, zinc pyrithione, and the like.
(6) Anti-inflammatory agent such as dipotassium glycyrrhizinate.
(7) Preservatives, such as methyl paraben, butyl paraben, phenoxyethanol and the like.
(8) Chelating agents such as ethylenediaminetetraacetic acid (EDTA) and the like.
(9) And (3) a perfume.
(10) A plant extract.
(11) The amount of the fatty alcohol used is preferably 1% by mass or less, more preferably 0.5% by mass or less, even more preferably 0.1% by mass or less, and even more preferably substantially none, from the viewpoint of maintaining the viscosity and the thick foam quality at low temperatures.
(12) The amount of the amine used is preferably 1% by mass or less, more preferably 0.5% by mass or less, even more preferably 0.1% by mass or less, and even more preferably substantially none, from the viewpoint of maintaining the viscosity and the thick foam quality at low temperatures.
The detergent composition of the present invention can be produced by mixing the compounding ingredients by a usual method.
Specifically, the viscosity of the detergent composition of the present invention at 5 ℃ is preferably 1 to 70 mPas, more preferably 1 to 30 mPas, and even more preferably 1 to 16 mPas. Further, the detergent composition of the present invention can give not only a fine foam when extruded from a foam pump, but also a fine foam when the composition is diluted and kneaded, and thus, it is easy to finely wash with the composition.
The cleanser composition of the present invention is suitably used as a skin or hair cleanser, such as a hand sanitizer, a face cleanser, a body wash, a shampoo, and the like, and particularly suitably used as a body wash for children.
The detergent composition of the present invention is preferably used in combination with a foam pump from the viewpoint of obtaining fine and thick foam. As the foam pump, the foam pumps shown in table 1 below can be used.
TABLE 1
With respect to the foregoing embodiments, the present invention further discloses the following compositions.
[1] The detergent composition of the present invention contains the following components (A) to (D),
(A) an anionic surfactant having a carboxylic acid or salt thereof on a hydrophilic group selected from: 0.1 to 20% by mass of an alkyl ether carboxylic acid or a salt thereof, or an N-acylamino acid or a salt thereof in which one end of nitrogen bonded to an acyl group is bonded to a hydrogen atom,
(B) 0.1 to 30 mass% of an amphoteric surfactant,
(C) 1 to 20% by mass of an inorganic salt, and
(D) and (3) water.
[2] The detergent composition [1] wherein the alkyl ether carboxylic acid or a salt thereof as the component (A) is represented by the following formula (1).
R1-O-(CH2CH2O)nCH2-COOX (1)
(in the formula (1), R1Represents an alkyl group having 10 to 18 carbon atoms, preferably an alkyl group having 12 to 16 carbon atoms, and more preferably an alkyl group having 12 to 14 carbon atoms; n represents the number of addition mols of ethylene oxide, and is a number of 0.5 to 10, preferably a number of 1 to 7, more preferably a number of 1 to 6, and further preferably a number of 1 to 4; x represents a hydrogen atom or a cation derived from an inorganic base or an organic base. )
[3] The detergent composition [1] wherein the alkyl ether carboxylic acid or a salt thereof as the component (A) is represented by the following formula (1).
R1-O-(CH2CH2O)nCH2-COOX (1)
(in the formula (1), R1An alkyl group having an average carbon number of 10 to 18, preferably an alkyl group having an average carbon number of 12 to 16, and more preferably an alkyl group having an average carbon number of 12 to 14; n represents an average addition mole number of ethylene oxide, and is an average number of 0.5 to 10, preferably a number of 2 to 7, more preferably a number of 2 to 5, and further preferably a number of 2 to 3; x represents a hydrogen atom or a cation derived from an inorganic base or an organic base. )
[4] The detergent composition according to [1], wherein the alkyl ether carboxylic acid or a salt thereof in the component (A) is one selected from the group consisting of laureth-4-carboxylic acid or a salt thereof, laureth-6-carboxylic acid or a salt thereof, and laureth-11-carboxylic acid or a salt thereof.
[5] The component (A) is a N-acylamino acid or a salt thereof in which one end of nitrogen linked to an acyl group is connected with hydrogen, the N-acylamino acid or the salt is represented by the following formula (2).
R-CO-N(H)-(CH2)n-C(R1)-COOX (2)
(in the formula (2), R represents an alkyl group having 8 to 18 carbon atoms, preferably an alkyl group having 12 to 16 carbon atoms, more preferably an alkyl group having 12 to 14 carbon atoms; n represents a number of 0, 1 or 2; R1Is an amino acid side chain; x represents a hydrogen atom or a cation derived from an inorganic base or an organic base. )
[6] The detergent composition according to [1] wherein the N-acylamino acid or salt thereof having hydrogen bonded to one end of nitrogen bonded to an acyl group in the component (A) is one selected from the group consisting of N-acylglycinate, N-acylglutamate, N-acylalaninate and N-acylaspartate.
[7] The detergent composition according to [1], wherein the content of the component (A) is preferably 0.5% by mass or more, preferably 19% by mass or less, more preferably 10% by mass or less, and still more preferably 5% by mass or less.
[8] The detergent composition according to [1], wherein the content ratio of the component (A) to the total anionic surfactant in the composition is preferably 33% by mass or more, more preferably 77% by mass or more, still more preferably 85% by mass or more, still more preferably 95% by mass or more, and particularly preferably substantially 100% by mass.
[9] The detergent composition according to [1] wherein the component (B) is at least one selected from the group consisting of alkylamidopropylbetaines, alkylamidopropylhydroxysultaines, alkylhydroxysultaines and alkylamphoacetates.
[10] The detergent composition according to [1] wherein the content of the component (B) is preferably 0.5% by mass or more, more preferably 1% by mass or more, further preferably 3% by mass or more, preferably 26% by mass or less, more preferably 20% by mass or less, further preferably 15% by mass or less.
[11]Component (C) is selected from sodium chloride (NaCl) and sodium sulfate (Na)2SO4) Sodium hydrogen phosphate (Na)2HPO4) Sodium dihydrogen phosphate (NaH)2PO4) Sodium hexametaphosphate ((NaPO)3)6) Sodium pyrophosphate (Na)4P2O7·10H2O), potassium chloride (KCl) and potassium sulfate (K)2SO4) Potassium hydrogen phosphate (K)2HPO4) Potassium dihydrogen phosphate (KH)2PO4) Potassium hexametaphosphate ((KPO)3)6) At least one of [1]]The detergent composition.
[12] The detergent composition according to [1], wherein the content of the component (C) is preferably 3% by mass or more, more preferably 5% by mass or more, further preferably 9% by mass or more, preferably 19% by mass or less, and further preferably 15% by mass or less.
[13] The detergent composition according to [1], wherein the content of the component (A) is preferably 33% by mass or more, more preferably 77% by mass or more, and still more preferably 85% by mass or more, based on the total amount of the anionic surfactant in the composition.
[14] The detergent composition according to [1] wherein the content of the component (A) is A and the content of the component (B) is B, the content of the component (A) and the content of the component (B) are such that (A +0.75B) is 22% by mass or less, preferably (A +0.75B) is in the range of 0.5 to 18% by mass, and more preferably (A +0.75B) is in the range of 2 to 16% by mass.
[15] Further comprising (E) any one of [1] to [14] of polyhydric alcohols having an IOB value of 1.05 to 3.33.
[16] The detergent composition according to [15], wherein the content of the component (E) is 0.1% by mass or more, preferably 0.5% by mass or more, more preferably 1.5% by mass or more, and 15% by mass or less, preferably 13% by mass or less, more preferably 7% by mass or less, and still more preferably 3% by mass or less.
[17] The detergent composition of any one of [1] to [7] having a viscosity at 5 ℃ of 1 to 70 mPas, preferably 1 to 30 mPas, and more preferably 1 to 16 mPas.
[18] A detergent product comprising the detergent composition according to any one of [1] to [17] and a foam pump filling the detergent composition.
Examples
Examples 1 to 45 and comparative examples 1 to 4
The manufacturing method of the embodiment comprises the following steps:
potassium hydroxide was weighed into deionized water, and then component (a) was added. The mixture was stirred at 120rpm for 10 minutes at room temperature, after sufficient neutralization, the components (B) and (C) were added, and stirring was continued for 10 minutes while maintaining the rotation speed at 120rpm, and other components were added as needed, to obtain the composition of the example.
Detergent compositions having the compositions shown in tables 3 to 10 were produced, and their viscosity, foam thickening property during extrusion, and foam thickening property after dilution were evaluated. The results are also shown in tables 3 to 10.
Further, information on the raw materials of the respective components used in the examples and comparative examples is shown in table 2.
TABLE 2
Active content means the content of each substance contained in the commercial product.
*1: AMILITE GCK-11 has the following formula:
r: cocoyl C12-16
*2: the chemical formula of AKYPO LM-26C is as follows:
R-O-(CH2CH2O-)nCH2COOH R＝C12/C14 n＝2.6
*3: the chemical formula of AKYPO RLM45-CA is as follows:
R-O-(CH2CH2O-)nCH2COOH R＝C12/C14，n＝4.5
*4: the AKYPO RLM-100NV has the following chemical formula:
R-O-(CH2CH2O-)nCH2CO2H
R＝C12/C14 n＝10
the contents of the respective components shown in the following description are actual contents of the respective chemical substances.
The evaluation method comprises the following steps:
(1) viscosity of the oil
The sample was left at 5 ℃ for 24 hours, and then its viscosity was measured using a Brookfield viscometer (S61) at a rotation speed of 60RPM when the sample viscosity was lower than 100 mPas and at a rotation speed of 30RPM when the sample viscosity was higher than 100 mPas for 1 minute.
Evaluation criteria:
when the measured viscosity is 1-70 mPa & s, the sample is considered to keep proper low viscosity;
when the measured viscosity is 1-30 mPa & s, the sample is considered to keep a more proper low viscosity;
when the measured viscosity is 1 to 16 mPas, the sample is considered to keep the most suitable low viscosity.
(2) Foam thickening during extrusion from a foam pump
The foam was extruded from a foam pump (manufactured by Jiye, K.K.; porous membrane filter: upper: 305 mesh, lower: 200 mesh; gas-liquid ratio 13:1) filled with the sample composition, the appearance of the foam was observed, and the foam was rated for thickening according to the following criteria.
4: the foam is fine and dense, and does not contain bubbles and liquid (as shown in figure 1)
3: the foam is fine, but has a small amount of bubbles and no liquid (as shown in figure 2)
2: the foam has larger bubbles and a small amount of liquid around the foam (as shown in FIG. 3)
1: in liquid form or not extrudable (as shown in FIG. 4)
(3) Thickening of the foam after dilution
To a sample (1.5ml) obtained by one-time extrusion was added 3g of water, and this was kneaded by hand for 30 seconds, the foam appearance was observed, and the thickening property of the foam was scored according to the following criteria.
4: fine and smooth foam and very thick texture
3: fine and smooth foam and thick texture
2: fine and smooth foam and light texture
1: the foam has large bubbles and is light
TABLE 3
From the comparison results in Table 3, it is understood that when an anionic surfactant is used in combination with betaine, the use of laureth-4-carboxylic acid as the anionic surfactant can reduce the viscosity of the composition and obtain a fine foam (example-1), whereas when sodium laureth sulfate, ammonium laureth sulfate or a fatty acid is used as the anionic surfactant, the composition has a very high viscosity and cannot extrude a foam (comparative examples-1 to-3).
TABLE 4
TABLE 5
From the results in Table 5, it is understood that when other anionic surfactant is contained in the composition, if the content ratio of the component (A) to the total anionic surfactant is 33% by mass or more, the composition can maintain low viscosity and foam thickening property is good; on the other hand, if the content ratio is 77% by mass or more, a lower viscosity can be maintained and foam thickening properties are better; if the content ratio is 85% by mass or more, the viscosity of the composition is the lowest.
TABLE 6
From the results of Table 6, it is understood that when the content of the component (A), the content of the component (B) and (A +0.75B) in the composition are within the content range and the preferable range of the present invention, the composition can maintain a suitably low viscosity at low temperatures and the foam texture is fine and thick when extruded from a container (particularly, a foam pump).
TABLE 7
TABLE 8
From the results shown in tables 7 and 8, it is understood that when the inorganic salt specified in the present invention is used as component (C) and is used in the content range and the content preferable range of the present invention, a fine and dense foam can be obtained when the component (C) is extruded from a container (particularly, a foam pump) and is further diluted with water and used.
TABLE 9
From the results in table 9, it is understood that when the component (E) is added to the composition, a more excellent effect of maintaining viscosity and a finer and thicker foam can be obtained at a low temperature.
Watch 10
From the results in table 10, it is understood that when the component (E) is contained in the content range and the preferable content range of the present invention, a more excellent effect of maintaining viscosity and a finer and thicker foam can be obtained at a low temperature.
TABLE 11
| Example-45 | ||
| D | Water (W) | Balance of |
| A | Laureth-4-carboxylic acid | 10.00％ |
| B | Lauramidopropyl betaine | 15.00％ |
| C | Sodium chloride | 5.00％ |
| E | PPG-9 diglycerol ether | 3.00％ |
| Potassium hydroxide | 3.09％ |
The following components can be added on the basis of the formulation example in the table 11, and the viscosity can be reduced at 5 ℃ so as to ensure that fine foam can be extruded.
In this formulation, for example: nonionic surfactants such as 3% alkyl glucoside, C9-11 alkyl glucoside and C10-16 alkyl glucoside may be exemplified; examples of the 3% alkylglyceryl ether include ethylhexyl glyceryl ether and isodecyl glyceryl ether. Optionally adding 1% nonionic surfactant such as PEG-80 sorbitan laurate, polysorbate-60, cocamide MEA, cocamide DEA, etc.; 2% of amino acid surfactant such as cocoyl alanine TEA salt, sodium lauroyl glutamate, sodium lauroyl sarcosinate, etc.; other amphoteric surfactants such as sodium lauroamphoacetate, sodium lauroamphodiacetate, cocamidopropyl betaine, etc. can also be added at 2%; optionally adding 1% modified oil ester such as PEG-60 hydrogenated castor oil, PEG-150 distearate, etc.; optionally adding 2% polyalcohol humectant such as glycerol, sorbitol, 1, 3-butanediol, propylene glycol, etc.
Claims (9)
1. A detergent composition comprising the following components (A) to (D),
(A) an anionic surfactant having a carboxylic acid or salt thereof on a hydrophilic group selected from: 0.1 to 20% by mass of an alkyl ether carboxylic acid or a salt thereof, or an N-acylamino acid or a salt thereof in which one end of nitrogen bonded to an acyl group is bonded to a hydrogen atom,
(B) 0.1 to 30 mass% of an amphoteric surfactant,
(C) an inorganic salt in an amount of 3 to 20% by mass, and
(D) the amount of water is controlled by the amount of water,
the alkyl ether carboxylic acid or a salt thereof in the component (A) is selected from those represented by the following formula (1),
R-O-(CH2CH2O)nCH2-COOX (1)
in the formula (1), R represents an alkyl group having 10 to 18 carbon atoms, n represents an addition mole number of ethylene oxide and is a number of 0.5 to 10, X represents a hydrogen atom or a cation derived from an inorganic base or an organic base,
the N-acylamino acid or salt thereof in the component (A) is selected from the group consisting of those represented by the following formula (2),
R-CO-N(H)-(CH2)n-C(R1)-COOX (2)
in the formula (2), R represents an alkyl group having 8 to 18 carbon atoms, n represents a number of 0, 1 or 2, R1Is an amino acid side chain, X represents a hydrogen atom or a cation derived from an inorganic base or an organic base,
the amphoteric surfactant of component (B) is at least one surfactant selected from alkyl betaines, alkyl thiobetaines, alkyl amide betaines, carbonyl betaines, sulfobetaines, imidazoline betaines, alkyl glycinates, alkyl carboxyglycinates, alkyl amphopropionates, alkyl amphoglycinates, and amine oxide surfactants,
the inorganic salt of the component (C) is at least one selected from the group consisting of sodium chloride, sodium sulfate, sodium hydrogen phosphate, sodium dihydrogen phosphate, sodium hexametaphosphate, sodium pyrophosphate, potassium chloride, potassium sulfate, potassium hydrogen phosphate, potassium dihydrogen phosphate, and potassium hexametaphosphate,
when the content of the component (A) is A and the content of the component (B) is B, the content of the component (A) and the content of the component (B) satisfy A +0.75B < 22 mass%.
2. The detergent composition of claim 1,
the content of the component (A) is 0.5 to 10% by mass.
3. The detergent composition of claim 1,
the content of the component (B) is 0.5 to 20% by mass.
4. The detergent composition of claim 1,
the content of the component (C) is 5 to 15 mass%.
5. The detergent composition of claim 1,
the content ratio of the component (A) to the total anionic surfactant in the composition is 33.3% by mass or more.
6. The detergent composition of claim 1,
when the content of the component (A) is A and the content of the component (B) is B, the content of the component (A) and the content of the component (B) satisfy 0.5 mass% or more and 0.75 mass% or less and 18 mass% or less.
7. A detergent composition according to any one of claims 1 to 6,
further contains 0.1 to 15 mass% of a component (E) which is a polyol having an IOB value of 1.05 to 3.33.
8. A detergent composition according to any one of claims 1 to 6,
the viscosity of the composition at 5 ℃ is 1 to 70 mPas.
9. A detergent product comprising, in combination,
a foam pump comprising a detergent composition as claimed in any one of claims 1 to 8 and filling the detergent composition.
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