JP2001026524A - Powdery detergent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a powdery detergent composition which shows both excellent effervescent property and low irritativeness to the skin and can be utilized as a powdery face cleaner, a powdery shampoo, or the like, by including an acylisethionic acid salt and an N-acylamino acid salt in a specific proportion. SOLUTION: This powdery detergent composition is obtained by including (A) an acylisethionic acid salt (e.g. a palm oil fatty acid ester sodium sulfonate, ethyl laurate sodium sulfonate, a palm oil fatty acid ethyl ester sulfonic acid triethanolamine, or the like) and (B) an N-acylamino acid salt (e.g. sodium N-lauroyl-L-glutamate, an N-palm oil fatty acid acyl-L-glutamic acid triethanol- amine, potassium N-myristry-L-glutamate, or the like) in a ratio of component A:B (weight ratio)=1:(2-3) and making it powdery. Further, it is favorable that the components A and B are formulated usually in a proportion of 5-50 wt.%, particularly 10-30 wt.%, based on the whole weight of the composition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a powdery detergent composition which has both excellent foaming properties and low skin irritation and which can be used for powdery facial cleansers, powdery shampoos and the like.

[0002]

2. Description of the Related Art Liquids, solids, powders and the like are known as forms of cleansing agents such as facial cleansers, shampoos, body soaps, etc. which are used in contact with the skin or hair. Above all, powdered detergents are prone to blocking and fuzziness due to the incorporation of liquid raw materials, and in order to maintain the fluidity change due to the hygroscopicity of the product, surfactants and other components such as It is said that the composition is limited, and it is difficult to achieve both excellent foaming properties and a feeling of use. In powdery detergents, alkyl sulfates, alkyl phosphates, and the like are known as anionic surfactants for obtaining excellent foaming properties. However, these are inferior in usability because of irritation. On the other hand, various surfactants with mild irritation are known, among which N-acyl amino acid salts and the like are well known. Various detergents utilizing this have also been proposed. For example, JP-A-6-108089 discloses powdery N having a water content of 3.5 to 10% by weight.
-Powdered detergent compositions containing lauroyl glutamate have been proposed. However, this N-lauroyl glutamate is inferior in foaming properties and may give a slimy feeling after use. By the way, Japanese Patent Application Laid-Open No. HEI 6-15772 discloses a liquid facial cleanser for achieving both excellent foaming properties and feeling of use.
No. 92, ethylene glycol difatty acid ester having a specific fatty acid composition, isethionate type anionic surfactant (A), N-acylglutamate (B) or N-acyl aspartate (C) There has been proposed a liquid facial cleansing composition having a pearl luster containing the following. In this face wash, the proportion of the component (A) is 9 to 30% by weight in the total amount of the face wash, and the proportion of the component (B) or (C) is 1 to 15% by weight in the total amount of the face wash. . The facial cleanser is intended to be a liquid facial cleanser, and its foaming property and feeling in use when made into a powder have not been studied.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a powdery detergent composition having both excellent foaming properties and a feeling of use.

[0004]

Means for Solving the Problems The present inventors have made intensive studies to solve the above problems. First, the combinations of various surfactants that can be used in powdered detergents were examined. As a result, a number of combinations of surfactants, which are conventionally known to be excellent in foaming properties, and surfactants having low irritation properties were examined. However, it was difficult to achieve both foaming properties and feeling of use. In short, when the foaming property is improved and the detergency is to be improved, the irritancy becomes stronger, and the feeling of use tends to decrease. Conversely, when the feeling of use is improved, the foaming property tends to decrease. was there. Therefore, not only the type of the surfactant but also the mixing ratio that can be used as a powdery detergent was intensively studied. As a result, among the various surfactants, when the acyl isethionate salt and the N-acyl amino acid salt are combined at a specific blending ratio, unexpectedly,
The inventors have found that the foaming property and the feeling of use can be compatible at a high level, and have completed the present invention. That is, according to the present invention, there is provided a powdery composition comprising an acyl isethionate and an N-acyl amino acid salt, wherein the mixing ratio of the acyl isethionate and the N-acyl amino acid salt is 1: 2 by weight.
A powdery detergent composition characterized by the above-mentioned.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. The detergent composition of the present invention is a powdery composition that can be used for various powdered detergents such as facial cleansers and shampoos, and is a powdery composition comprising a specific ratio of acyl isethionate and N-acyl amino acid salt. Including. The average particle size of the powder is not particularly limited as long as it can be used for a general powdery detergent.

In the acyl isethionate used in the present invention, examples of the acyl group include lauroyl, myristoyl, palmitoyl, stearoyl, 2-ethylhexanoyl, oleoyl, coconut fatty acid acyl, tallow fatty acid acyl, hardened tallow fatty acid acyl, Palm oil fatty acyl, palm kernel oil fatty acyl and the like. Examples of the salt include metal salts such as lithium, sodium and potassium; alkanolamine salts such as ammonium salt, ethanolamine salt and propanolamine salt.
Suitable acyl isethionate salts include, for example, sodium coconut oil fatty acid ethyl ester sulfonate, sodium laurate ethyl ester sulfonate, and coconut oil fatty acid ethyl ester sulfonate triethanolamine.

The N-acyl amino acid salt used in the present invention includes, for example, sodium N-lauroyl-L-glutamate, N-coconut fatty acid acyl-L-glutamate triethanolamine, N-myristyl-L-glutamate potassium, Sodium oleyl-L-glutamate, N-coconut fatty acid / hardened tallow fatty acid acyl-ammonium L-glutamate, N-lauroyl-L-sodium aspartate, N-coconut fatty acid acyl-L-aspartate triethanolamine, N -Myristil-
Potassium L-aspartate, N-coconut oil fatty acid / hardened tallow fatty acid acyl-ammonium L-aspartate, and the like.

In the present invention, the mixing ratio of the above-mentioned acyl isethionate and the N-acyl amino acid salt is 1: 2 to 3 by weight. For acyl isethionate 1,
When the compounding ratio of the N-acyl amino acid salt is less than 2 or more than 3, it is not possible to achieve both excellent foaming properties and a feeling of use such as a feeling of irritation at a high level. In the present invention, the mixing ratio of the acyl isethionate and the N-acyl amino acid salt to the total amount of the composition is not particularly limited, and is appropriately selected depending on the type of the detergent, the presence or absence of another surfactant, and the like. be able to. Usually, 5 to 50% by weight, especially 10 to 30% by weight, based on the total amount of the composition is preferred.

The powdery detergent composition of the present invention may contain other surfactants in addition to the above-mentioned essential surfactants as long as the object of the present invention is not impaired. Other surfactants include, for example, alkyl sulfates, polyoxyethylene alkyl ether sulfates, polyoxyethylene alkyl ether phosphates, sulfosuccinates,
Anionic surfactants such as taurine derivatives, sarcosine derivatives, amide ether sulfates, ether phosphates, fatty acid salts, ether carboxylate salts, and sulfonate salts;
Alkyl betaine amphoteric surfactants, alkyl amide betaine amphoteric surfactants, imidazoline amphoteric surfactants, glycine amphoteric surfactants, amine oxide amphoteric surfactants, acylmethyl-β-alanine amphoteric surfactants, etc. Amphoteric surfactants; polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene alkyl ethers, polyoxyethylene polyoxypropylene glycols, polyoxyethylene sorbitan fatty acid esters, lecithin and its derivatives, sucrose fatty acid esters, Propylene glycol fatty acid ester, glycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyglycerin fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbite fatty acid ester Polyoxyethylene alkylphenyl formaldehyde condensate, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene sterol, polyoxyethylene hydrogenated sterol, polyethylene glycol fatty acid ester, polyoxyethylene alkyl phenyl ether, polyoxy Nonionic surfactants such as ethylene lanolin, polyoxyethylene lanolin alcohol, polyoxyethylene beeswax derivatives, polyoxyethylene alkylamine, polyoxyethylene fatty acid amide, and polyoxyethylene alkyl ether phosphoric acid, and mixtures thereof. The blending ratio when these other surfactants are blended is not particularly limited as long as the object of the present invention is not impaired, but is usually 10% by weight based on the total amount of the composition.
The following is preferred.

[0010] The powdery detergent composition of the present invention usually contains a powdery detergent for the purpose of not impairing the object of the present invention, or for further improving the effect of the present invention or for other purposes. Various components that can be blended can be blended. Such other components include, for example, sugars, inorganic pigments, natural pigments, humectants, anti-inflammatory agents, bactericides, antioxidants, fragrances, and mixtures thereof.
It can be used in combination of more than one species.

Examples of the saccharide include saccharose, maltose, sucrose, lactose, glucose, xylose, fructose, sorbitol, mannitol,
Examples include trehalose, xylitol, and mixtures thereof. As inorganic pigments, for example, silicic anhydride, magnesium silicate, talc, kaolin, bentonite,
Mica, mica titanium, bismuth oxychloride, zirconium oxide, magnesium oxide, zinc oxide, calcium carbonate, magnesium carbonate, yellow iron oxide, red iron oxide, black iron oxide, gunjou, chromium oxide, chromium hydroxide, carbon black, calamine or these Mixtures and the like can be mentioned. Examples of the natural pigment include β-carotene, hibiscus pigment, surful yellow, cocoa pigment, riboflavin, chlorophyll, caramel, and mixtures thereof. Examples of the humectant include mucopolysaccharides such as hyaluronic acid, chondroitin sulfate, dermatan sulfate, heparan sulfate, heparin and kelantan sulfate and salts thereof; biological lipids such as sphingolipids, cholesterol and phospholipids; pantothenic acid derivatives; , Elastin, keratin, etc., their derivatives and their salts; NMF components such as amino acids, sodium lactate, sodium pyrrolidonecarboxylate; avocado oil, castor oil, olive oil, cacao oil, camellia oil, coconut oil, wood wax, jojoba Vegetable oils such as oil and grape seed oil; squalane;
Liquid hydrocarbons such as liquid paraffin, microcrystalline wax, ceresin wax, paraffin wax, and petrolatum; higher alcohols such as cetanol, stearyl alcohol, hexyldecanol, octyldodecanol, and hexyldecanol; silicon such as methylpolysiloxane and decamethylcyclopentasiloxane Species; plant-derived extracts such as chamomile extract, soybean extract, ginkgo extract, rosemary extract, rosemary extract, oak extract, comfrey extract, litchi extract, and mixtures thereof. Can be Examples of anti-inflammatory agents include glycyrrhizic acid, glycyrrhetinic acid, salicylic acid, mefenamic acid, phenylbutazone, indomethacin, ibuprofen, ketoprofen, allantoin,
Guaiazulene, derivatives thereof, salts thereof, and mixtures thereof, and the like. Examples of fungicides include, for example, lysotium chloride, benzoate, sorbate, dehydroacetate, paraoxybenzoate, benzethonium chloride, phenoxyethanol, chlorhexidine gluconate, isopropylmethylphenol, cetylpyridinium chloride, pyroctonolamine, zinc pyrithione. , 2,
Examples thereof include 2,4′-trichloro-2′-hydroxyphenyl ether, triclocarban, triclosan, benzalkonium chloride, and a mixture thereof. Examples of the antioxidant include dibutylhydroxytoluene, butylhydroxyanisole, propyl gallate, ascorbic acid, vitamin Es, and mixtures thereof.

In order to prepare the powdered detergent composition of the present invention, the above-mentioned various raw material components can be obtained by powdering by a known powdering method. The powdery detergent obtained by the present invention can be used by dissolving it in water or hot water.

[0013]

The powdery detergent composition of the present invention contains an acyl isethionate salt and an N-acylamino acid salt in a specific ratio, so that the powdery detergent has excellent foaming properties and feeling of use. Can be compatible, in particular, powder cleanser,
Useful for powder shampoos and the like.

[0014]

The present invention will be described in more detail with reference to the following Examples and Comparative Examples, but the present invention is not limited thereto. Incidentally, the evaluation in each example was performed by a score according to the following criteria. <Foaming property> 1 point: poor foaming, 2 points: good foaming, 3 points: very good foaming. <Sliminess> 1 point: slimy feeling 2 points: slight slimy feeling 3 points: no slimy feeling <Tightness> 1 point: there is a feeling of tightness, 2 points: a little feeling of tightness is felt, 3 points: no feeling of tightness. <Irritability> 1 point: There is irritation, 2 points: Some irritation is felt, 3
Point: No irritation. <Squeakiness> 1 point: squeaky feeling 2 points: slightly squeaky feeling 3 points: no squeaky feeling

Examples 1-1 to 1-4 and Comparative Examples 1-1 to 1-4
1-7 Each component shown in Table 1 was powdered by a conventional method to prepare a powdery face wash. The obtained facial cleanser was used by 10 panelists, respectively, and evaluated based on the above criteria. The evaluation results are shown in Table 1 by the average points.

[0016]

[Table 1]

Examples 2-1 to 2-4, Comparative examples 2-1 to 2
-7 Each component shown in Table 2 was powdered by a conventional method to prepare a powdery shampoo. The shampoos obtained are each 10
They were used by human panels and evaluated based on the above criteria. The evaluation results are shown in Table 2 by the average points.

[0018]

[Table 2]

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI theme coat ゛ (reference) C11D 1:10 1:14) F-term (reference) 4C083 AC022 AC661 AC662 AC782 AC791 AC792 AD202 BB23 CC23 CC38 DD17 EE06 EE10 4H003 AB08 AB09 AB20 AB21 AB27 BA09 DA02 EA24 EB41 EB43 FA02 FA12 FA18 FA21

Claims (3)

[Claims] 1. A powdery composition comprising an acyl isethionate and an N-acyl amino acid salt, wherein the mixing ratio of the acyl isethionate and the N-acyl amino acid salt is 1: 2 to 3 by weight. A powdery detergent composition characterized by the following. 2. A surfactant other than an acyl isethionate salt and an N-acyl amino acid salt is used in an amount of 10 to the total amount of the composition.
The powdery detergent composition according to claim 1, wherein the composition contains less than 10 wt%. 3. It further comprises one or more selected from the group consisting of saccharides, inorganic pigments, natural pigments, humectants, anti-inflammatory agents, preservatives, antioxidants, fragrances and mixtures thereof. The powdery detergent composition according to claim 1, wherein the composition is a powdery detergent composition.