JP7193405B2 - Body wash composition - Google Patents

Description

TECHNICAL FIELD The present invention relates to a body cleansing composition having high foaming power, high hue stability, excellent low-temperature stability, and high foam resilience.

BACKGROUND ART Conventionally, as a skin cleanser such as a facial cleanser, one containing a higher fatty acid salt that is inexpensive, has high detergency, and exhibits good foaming properties has been used. Fatty acids obtained by hydrolyzing beef tallow, coconut oil, palm oil, and palm kernel oil, which are natural animal and vegetable fats and oils, are used as raw materials. The main components of these are saturated and unsaturated fatty acids with 8 to 18 carbon atoms. Among the fatty acids that are often used in skin cleansers based on fatty acid salts, lauric acid (12 carbon atoms), which has a relatively short chain length, has excellent low-temperature stability and good solubility in water. It has high foaming power. However, it has drawbacks such as irritation to the skin and a feeling of tightness on the skin after cleansing. On the other hand, longer-chain myristic acid (14 carbon atoms), palmitic acid (16 carbon atoms), and stearic acid (18 carbon atoms) are mild to the skin, but have poor low-temperature stability and are soluble in water. However, it has the drawback of low foaming power.
On the other hand, cleaning agents using triethanolamine as a counterion are also known as methods for improving low-temperature stability (Patent Documents 1 to 6). However, triethanolamine salts have drawbacks such as poor foaming power and poor hue stability. Also, by using triethanolamine as a counter ion, the low-temperature stability is better than that of sodium salts and potassium salts, but it is not sufficient.
In order to improve the foaming properties of a personal cleansing composition using a fatty acid triethanolamine salt, a method of using a betaine surfactant (Patent Document 1), a fatty acid N-methyltaurate salt (Patent Document 5), etc. in combination is proposed. It is However, these methods have the problem that the effect of improving the foaming power or the foam retention is insufficient, or that a slimy feeling occurs.

Japanese Patent Laid-Open No. 62-205198 Japanese Patent Laid-Open No. 5-148500 Japanese Patent Laid-Open No. 8-92064 JP 2000-8098 JP 2000-44998 Special table 2000-514113

Regarding higher fatty acid salts, no body cleansing composition has been developed that has high foaming power, high color stability, excellent low-temperature stability, and high foam resilience.

The present inventors have made intensive studies to solve the above problems, and found that a neutralized salt of a higher fatty acid having 14 to 18 carbon atoms and an alkanolamine having a specific structure has a high foaming power. The inventors have found that the color stability is high, the low-temperature stability is excellent, and the foam resilience is high, leading to the present invention.

（式中、Ｒ^１はメチル基、Ｒ^２とＲ^３は同一でも異なっていてもよい炭素数２～３のヒドロキシアルキル基を表す。） That is, the present invention
Component (a): A personal cleansing composition characterized by containing 5 to 25% by weight of a neutralized salt of a higher fatty acid having 14 to 18 carbon atoms and an alkanolamine of the following general formula (1).

(In the formula, R ¹ represents a methyl group, and R ² and R ³ represent a hydroxyalkyl group having 2 to 3 carbon atoms which may be the same or different.)

The higher fatty acid used in the body cleansing composition of the present invention may have any carbon chain length of 14 to 18, and is not particularly limited to saturated, unsaturated, linear or branched. Fatty acids that can be used include myristic acid, palmitic acid, stearic acid, isostearic acid, and oleic acid.

The alkanolamine used in the body cleansing composition of the present invention is produced by a known method such as addition reaction of amines with ethylene oxide or propylene oxide. Examples of alkanolamine that can be used include N-methyldiethanolamine, N-methylethanolamine adduct of 1 mol of propylene oxide, and N-methyldiisopropanolamine.

The body cleansing composition of the present invention can impart the effect of improving foaming power, color stability, low temperature stability and foam elasticity.

Embodiments of the present invention will be described below.
Component a of the body cleansing composition of the present invention is an alkanolamine salt of a higher fatty acid. It is the main ingredient of the body cleansing composition of the present invention, which is the key to foaming power, color stability, low temperature stability, and foam resilience. As higher fatty acids, saturated, unsaturated, straight-chain, branched higher fatty acids having 14 to 18 carbon atoms, and mixtures of these higher fatty acids can be used. Myristic acid with number 14 and palmitic acid with 16 carbon atoms are particularly preferred. If the number of carbon atoms is 13 or less, there is a problem in terms of irritation to the skin, and if the number of carbon atoms is 19 or more, there is a problem in terms of foaming power.

Considering the effect of improving the foaming power, color stability, low temperature stability and foam resilience sought by the present invention, as alkanolamine, N-methyldiethanolamine, propylene oxide 1 mol adduct of N-methylethanolamine, N -methyldiisopropanolamine and the like can be used, and a 1 mol propylene oxide adduct of N-methyldiethanolamine and N-methylethanolamine is preferred, and a 1 mol propylene oxide adduct of N-methylethanolamine is particularly preferred.

The higher fatty acid alkanolamine salt of component a of the body wash composition of the present invention can be contained in an amount of 5 to 25% by weight, preferably 5 to 23% by weight, and particularly preferably 5 to 20% by weight. If it is less than 5% by weight, the foaming power is not sufficient, and if it exceeds 25% by weight, the low-temperature stability deteriorates.

In the body cleansing composition of the present invention, an alkanolamine salt represented by the general formula (1) or (2) of an anionic surfactant other than a higher fatty acid having 14 to 18 carbon atoms is blended as a component b. can be done. Component b can be blended for the purpose of enhancing the effect of improving foaming power, color stability, low-temperature stability and foam resilience of component a. Component b can be contained in an amount of 1 to 10% by weight. If it is less than 1% by weight, the effect of component a cannot be sufficiently enhanced, and if it exceeds 10% by weight, the effect of component a is impaired.

Lauric acid and N-acyl-N-methyl-β-alanine as anionic surfactants other than fatty acids having 14 to 18 carbon atoms (Alanone (registered trademark) ALA manufactured by Kawaken Fine Chemicals Co., Ltd. as a commercially available product) , N-acyl-N-hydroxyethyl-β-alanine, acyl sarcosine (Soypon (registered trademark) SLA manufactured by Kawaken Fine Chemicals Co., Ltd.), acyl methyl taurine, acyl glutamic acid, acyl glycine, acyl aspartic acid, acyl β-alanine, laureth Sulfuric acid, lauryl sulfuric acid, acyl isethionic acid, α-olefin sulfonic acid, polyoxyethylene coconut oil fatty acid monoethanolamide phosphate (Amizet (registered trademark) 52P manufactured by Kawaken Fine Chemicals Co., Ltd.), polyoxyethylene lauryl ether acetic acid, polyoxy Ethylene coconut oil alkyl ether acetic acid, polyoxyethylene tridecyl ether acetic acid, polyoxyethylene lauroyl ethanolamide ether acetic acid, polyoxyethylene coconut oil fatty acid ethanolamide ether acetic acid, polyoxyethylene N-methyl-lauroyl ethanolamide ether acetic acid, polyoxy Ethylene N-ethyl-lauroylethanolamide ether acetic acid, polyoxyethylene N-methyl-coconut fatty acid ethanolamide ether acetic acid, polyoxyethylene N-ethyl-coconut fatty acid ethanolamide ether acetic acid, polyoxyethylene lauryl sulfosuccinic acid, polyoxy Ethylene coconut oil fatty acid sulfosuccinic acid, polyoxyethylene lauroyl ethanolamide sulfosuccinic acid, polyoxyethylene coconut oil fatty acid ethanolamide sulfosuccinic acid, polyoxyethylene N-methyl-lauroyl ethanolamide sulfosuccinic acid, polyoxyethylene N-methyl-coconut oil fatty acid Ethanolamide sulfosuccinic acid, polyoxyethylene N-ethyl-lauroyl ethanolamide sulfosuccinic acid, polyoxyethylene N-ethyl-coconut fatty acid ethanolamide sulfosuccinic acid, and the like can be used.

The detergent composition of the present invention is mainly used for cosmetics, and can be used as cleansing cosmetics such as body soap, body shampoo, hand soap, cleansing foam, face wash, solid soap, transparent soap, and hair shampoo. can.

Further, the detergent composition of the present invention can be used in combination with known components as long as they do not impair the purpose of the present invention. For example, sorbitan fatty acid esters such as sorbitan monolaurate, sorbitan sesquioleate, sorbitan trioleate, sorbitan monooleate, sorbitan monostearate, sorbitan tristearate, sorbitan monoisostearate, POE sorbitan monolaurate, POE monostearate Polyoxyethylene sorbitan fatty acid esters such as sorbitan, POE sorbitan tristearate, and POE sorbitan monoisostearate, polyethylene glycol monolauric acid, polyethylene glycol monostearate, polyethylene glycol monooleic acid, polyethylene glycol distearate, polyethylene glycol dioleate, Polyethylene glycol fatty acid esters such as polyethylene glycol diisostearic acid, polyoxyethylene alkyl ethers such as POE lauryl ether, POE cetyl ether, POE stearyl ether, POE oleyl ether, and POE behenyl ether, diglyceryl monostearate, diglyceryl monooleate, Diglyceryl dioleate, diglyceryl monoisostearate, tetraglyceryl monostearate, tetraglyceryl tristearate, tetraglyceryl pentastearate, hexaglyceryl monolaurate, hexaglyceryl monomyristate, decaglyceryl distearate, decaglyceryl diisostearate, etc. Polyglycerin fatty acid ester, polyglycol diester, coconut oil fatty acid monoethanolamide (Amisol (registered trademark) CME manufactured by Kawaken Fine Chemicals Co., Ltd. as a commercially available product), lauroyl monoethanolamide, myristoyl monoethanolamide, lauroyl diethanol Amide (Amisol LDE-G manufactured by Kawaken Fine Chemical Co., Ltd.), coconut oil fatty acid diethanolamide (Amisol CDE-G, FDE manufactured by Kawaken Fine Chemical Co., Ltd.), lauroyl isopropanolamide (Amisol PLME-A manufactured by Kawaken Fine Chemical Co., Ltd.), fatty acid alkanolamides such as myristoyl isopropanolamide and coconut oil fatty acid isopropanolamide; cocamide methyl MEA; PEG-2 Caprylylamine (Kawaken Phi Formate (registered trademark) 2E8 manufactured by N Chemical Co., Ltd.), PEG-2 cocamine (Viscofine (registered trademark) E2C manufactured by Kawaken Fine Chemical Co., Ltd.), (lauryl / myristyl) glycol hydroxypropyl ether (Viscosafe manufactured by Kawaken Fine Chemical Co., Ltd.) (registered trademark) LMPE), sugar derivatives such as maltitol hydroxy fatty acid ethers, alkylated polysaccharides, alkyl glucosides, sugar esters, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, propylene glycol monostearate, self-emulsifying mono Propylene glycol fatty acid esters such as propylene glycol stearate, glycerin fatty acid esters such as glyceryl monostearate and self-emulsifying glyceryl monostearate, polyoxyethylene glycerin fatty acid esters such as POE glyceryl monostearate, POE sorbitol hexastearate, tetra Polyoxyethylene sorbitol fatty acid esters such as POE sorbitol stearate, POE sorbitol tetraoleate, and POE sorbitol monolaurate; nonionic surfactants such as POE octylphenol ether, POE nonylphenol ether, and POE chlorophenol ether;

Lauryldimethylaminoacetic acid betaine, coconut fatty acid amidopropyldimethylaminoacetic acid betaine (commercially available products include Softazolin (registered trademark) CPB and CPB-R manufactured by Kawaken Fine Chemicals Co., Ltd.), lauramidopropyl betaine (Kawaken Fine Chemicals Softazolin LPB, LPB-R manufactured by Co., Ltd.), palm kernel fatty acid amidopropyl betaine (Softazolin PKPB manufactured by Kawaken Fine Chemicals Co., Ltd.) and other betaine acetates, alkyl carboxymethyl hydroxyethyl imidazolinium betaine, alkyl sodium carboxymethyl carboxyethyl Imidazolinium betaines such as imidazolinium betaine, sodium cocoamphoacetate (Softazoline CH, CH-R, CL, CL-R manufactured by Kawaken Fine Chemicals Co., Ltd.), Na lauroamphoacetate (Softazoline LHL, LHL- manufactured by Kawaken Fine Chemicals Co., Ltd.) SF), sodium cocoamphopropionate (Softazolin NS, SF, SFD manufactured by Kawaken Fine Chemicals Co., Ltd.), coconut oil alkylbetaine, alkylbetaine such as lauryl betaine, hydroxyalkyl (C12-14) hydroxyethyl sarcosine (Kawaken Fine Chemicals Co., Ltd. Softazoline LMEB, LMEB-R manufactured by Kawaken Fine Chemicals Co., Ltd.), Lauramidopropyl hydroxysultaine (Softazoline LSB, LSB-R manufactured by Kawaken Fine Chemicals Co., Ltd.), Lauryl hydroxysultaine, Lauryldimethylamine oxide, Lauramidopropylamine oxide (Kawaken Fine Chemicals Co., Ltd.) Amphoteric surfactants such as Softazolin LAO-C (manufactured by Co., Ltd.), bis(stearylhydroxyethylimidazoline) chloroacetate complex, desalted purified amphoteric surfactants for formulation stability, etc.

Macadamia nut oil, avocado oil, corn oil, cacao oil, evening primrose oil, mink oil, rice bran oil, almond oil, safflower oil, soybean oil, camellia oil, persic oil, olive oil, rapeseed oil, sesame oil, castor oil, sunflower oil, peanut oil Oil, egg yolk oil, cottonseed oil, malt oil, jojoba oil, coconut oil, palm oil, lanolin, squalene, hydrogenated coconut oil, hydrogenated oil, Japanese wax, hydrogenated castor oil, etc.
Hydrocarbons such as squalane, liquid paraffin, petroleum jelly, ceresin, microcrystalline wax, isoparaffin, waxes such as carnauba wax, paraffin wax, whale wax, beeswax, candelilla wax, lanolin, etc.

Higher alcohols such as cetanol, stearyl alcohol, lauryl alcohol, myristyl alcohol, cetostearyl alcohol, oleyl alcohol, behenyl alcohol, lanolin alcohol, hydrogenated lanolin alcohol, hexyldecanol, octyldodecanol, etc.

Esters such as isopropyl myristate, isopropyl palmitate, isopropyl stearate, glycerol 2-ethylhexanoate, butyl stearate, ethyl linoleate,

Polar oils such as diethylene glycol monopropyl ether, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxypropylene butyl ether,

cetyl isooctanoate, isopropyl myristate, hexyldecyl isostearate, diisopropyl adipate, di-2-ethylhexyl sebacate, cetyl lactate, diisostearyl malate, ethylene glycol di-2-ethylhexanoate, neopentyl glycol dicaprate, Synthetic esters such as glyceryl di-2-heptylundecanoate, glyceryl tri-2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, pentaneerythritol tetra-2-ethylhexanoate oils,

Pigments such as Red No. 201, Yellow No. 4, Blue No. 1, and Black No. 401, lake pigments such as Yellow No. 4 Al lake and Yellow No. 203 Ba lake, nylon powder, silk powder, silicone powder, cellulose powder, silicone elastomer spherical Powders, polymers such as polyethylene powder, yellow iron oxide, red iron oxide, chromium oxide, carbon black, ultramarine blue, dark blue and other colored pigments, zinc oxide, titanium oxide and other white pigments, talc, mica, sericite, kaolin Extender pigments such as titanium mica, pearl pigments such as titanium mica, metal salts such as barium sulfate, calcium carbonate, magnesium carbonate, and magnesium silicate, inorganic powders such as silica and alumina, powders such as bentonite, smectite, and boron nitride,

Dimethylpolysiloxane, methylphenylpolysiloxane, polyether-modified silicone, polyamino-modified silicone, betaine-modified silicone, alcohol-modified silicone, fluorine-modified silicone, epoxy-modified silicone, mercapto-modified silicone, carboxy-modified silicone, fatty acid-modified silicone, silicone graft polymer, Silicones such as cyclic silicone, alkyl-modified silicone, trimethylsilyl group-terminated dimethylpolysiloxane, silanol group-terminated dimethylpolysiloxane,

Polyhydric alcohols such as maltitol, sorbitol, glycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol and glycol, organic acids such as sodium pyrrolidonecarboxylate, sodium lactate and sodium citrate and their salts, hyaluronic acid such as sodium hyaluronate Acids and their salts, hydrolysates of yeast and yeast extracts, yeast cultures, fermentation metabolites such as lactic acid bacteria cultures, collagen (available commercially, water-soluble collagen Kawaken P manufactured by Kawaken Fine Chemicals, 0.5% U, Corrupton (registered trademark) S), elastin, keratin, water-soluble proteins such as sericin, collagen hydrolysates, casein hydrolysates, silk hydrolysates, peptides such as sodium polyaspartate, and their Salt, sugars such as trehalose, xylobiose, maltose, raffinose, melibiose, sucrose, glucose, and vegetable viscous polysaccharides, polysaccharides such as crystalline cellulose, non-crystalline cellulose, xylan, mannan, galactan, arabinan, and arabinoxylan, and derivatives thereof , water-soluble chitin, chitosan, succinyl carboxymethyl chitosan (Kawaken Fine Chemical Co., Ltd. Chito Aqua (registered trademark)), pectin, glycosaminoglycans such as chondroitin sulfate and its salts, glycine, serine, threonine, alanine, Amino acids such as aspartic acid, tyrosine, valine, leucine, arginine, glutamine and proline, sugar amino acid compounds such as aminocarbonyl reactants, plant extracts such as aloe and horse chestnut, trimethylglycine, urea, uric acid, ammonia, lecithin, lanolin, moisturizing agents such as squalane, squalene, glucosamine, creatinine, nucleic acid-related substances such as DNA and RNA;

Carboxymethyl cellulose, ethyl cellulose, hydroxypropyl cellulose, methyl hydroxypropyl cellulose, starch, soluble starch, carboxymethyl starch, methyl starch, propylene glycol alginate, methyl cellulose, gum arabic, xanthan gum, guar gum, locust bin gum, quince seed, carrageenan, galactan, Pectin, mannan, dextran, succinoglucan, curdlan, gelatin, casein, albumin, collagen, methoxyethylene maleic anhydride copolymer, amphoteric methacrylate copolymer, polyacrylate copolymer, polyvinyl acetate, Polyvinyl alcohol, polyvinyl methyl ether, carboxyvinyl polymer, polyacrylic acid, nitrocellulose, polyethylene glycol fatty acid ester, polyoxyethylene fatty acid ester such as polyethylene glycol distearate, polyoxyethylene fatty acid ester such as polyoxyethylene methyl dioleate glucoside thickeners such as methyl glycosides,

para-aminobenzoic acid and its derivatives, homomethyl-7N-acetylallantyranilate, butylmethoxybenzoylmethane, glyceryl di-paramethoxycinnamate-mono-2-ethylhexanoate, para-methoxycinnamate derivatives such as octylcinnamate , salicylic acid derivatives such as amyl salicylate, benzophenone derivatives such as 2,4-dihydroxybenzophenone, dimethoxybenzylidene dioxoimidazoline ethylhexyl propionate, liquid lanolin acetate, scutellaria root extract, trianilino-p-carboethylhexyloxy-triazine, etc. agent,

Arbutin, kojic acid, ascorbic acid and its derivatives such as magnesium ascorbate phosphate, glutathione, licorice extract, clove extract, tea extract, astaxanthin, bovine placenta extract, tocopherol and its derivatives, tranexamic acid and its salts, azulene, gamma - whitening ingredients such as hydroxybutyric acid,

Biopolymers such as deoxyribonucleic acid, collagen, elastin, chitin, chitosan, hydrolyzed eggshell membrane, amino acids, sodium lactate, urea, sodium pyrrolidonecarboxylate, betaine, moisturizing ingredients such as whey, sphingolipids, ceramides, cholesterol, cholesterol derivatives , oily components such as phospholipids,

Anti-inflammatory agents such as ε-aminocaproic acid, glycyrrhizic acid, β-glycyrrhetinic acid, lysozyme chloride, guaiazulene, hydrocortisone, vitamins (A, B2, B6, C, D, E), calcium pantothenate, biotin, nicotinamide , vitamins such as vitamin C ester,

Active ingredients such as allantoin, diisopropylamine dichloroacetate, 4-aminomethylcyclohexanecarboxylic acid, tocopherol, carotenoids, flavonoids, tannins, lignans, saponins and other antioxidants, citric acid, malic acid, tartaric acid, lactic acid, adipic acid, glutamic acid , organic acids such as aspartic acid and maleic acid, α-hydroxy acids, cell activators such as β-hydroxy acids,

Nicotinamide, benzyl nicotinate, γ-oryzanol, allantoin, glycyrrhizic acid (salt), glycyrrhetinic acid and its derivatives, hinokitiol, mucidin, bisabolol, eucalyptol, thymol, inositol, saponins (quillayasaponin, azukisaponin, luffa saponin, etc.), tranexamic acid, pantoterethyl ether, ethinyl estradiol, cephalandine, placenta extract, assembly extract, cepharanthine, vitamin E and derivatives thereof, and other blood circulation promoting agents;

Benzoic acid and its salts, salicylic acid and its salts, sorbic acid and its salts, parahydroxybenzoic acid alkyl esters (ethylparaben, butylparaben, etc.) and its salts, dehydroacetic acid and its salts, parachlormetacresol, hexachlorophene, boric acid , resorcin, isopropylmethylphenol, triclosan, hinokitiol, tribromsaran, orthophenylphenol, chlorhexidine gluconate, thiram, photosensitizer No. 201, phenoxyethanol, benzalkonium chloride, benzethonium chloride, halocarban, chlorhexidine chloride, trichlorocarbanide, Antibacterial agents such as tocopherol acetate, pyrithione zinc, phenol, 2,4,4-trichloro-2-hydroxyphenol, hexachlorophene, antiseptics,

Angelica keiskei extract, Gomacha extract, Altea extract, Aloe extract, Apricot extract, Ginkgo biloba extract, Fennel extract, Oolong tea extract, Age extract, Scutellaria root extract, Phellodendron bark extract, Hypericum extract, Dutch mustard extract, Orange extract, Seawater dried matter, Seaweed extract, Hydrolyzed wheat powder, hydrolyzed silk, chamomile extract, carrot extract, wormwood extract, licorice extract, persimmon extract, kiwi extract, cucumber extract, gardenia extract, kumazasa extract, clara extract, walnut extract, grapefruit extract, chlorella extract, mulberry extract, Black tea extract, yeast extract, collagen, salvia extract, soapwort extract, hawthorn extract, rhubarb extract, rhizome extract, perilla extract, linden extract, peony extract, white birch extract, horsetail extract, ivy extract, hawthorn extract, elderberry extract, yarrow extract extract, peppermint extract, sage extract, cnidium extract, assembly extract, soybean extract, sunflower extract, thyme extract, tea extract, clove extract, chimp extract, angelica root extract, tonin extract, dokudami extract, tomato extract, natto extract, carrot extract, garlic extract , Novara extract, honey, hamamelis extract, cypress extract, bisabolol, loquat extract, Bukuryo extract, propolis, loofah extract, peppermint extract, bodaiju extract, hop extract, Madonna lily flower extract, horse chestnut extract, soapberry extract, melissa extract, peach extract, saxifrage extract , Yuzu extract, Artemisia extract, Lavender extract, Lemon extract, Astragalus extract, Rosemary extract, Royal jelly extract and other natural plant extracts, seaweed extracts, herbal medicines,
cooling agents such as l-menthol and peppermint oil; wound healing agents such as retinol and retinol derivatives;
Perfumes and the like can be blended.

EXAMPLES Hereinafter, the present invention will be specifically described by showing examples and comparative examples, but the present invention is not limited to the following examples.

Production example 1
Production of 1 mol propylene oxide adduct of N-methylethanolamine A 1 liter autoclave was charged with N-methylethanolamine (1.0 mol, manufactured by Tokyo Kasei Kogyo Co., Ltd.), purged with nitrogen, and heated to 95-105°C to propylene. Oxide addition (1.0 mol, manufactured by Tokyo Kasei Kogyo) was carried out. After the propylene oxide was introduced, aging was performed for 1 hour, and the desired product was picked up.
The structure was determined by ¹ H-NMR. δ = 1.1 ppm (3H, d), 2.3 ppm (5H, m), 2.5 ppm (1 H, m), 2.6 ppm (1 H, m), 3.6 ppm (2H, m), 3.8 ppm (1H, m).

Higher fatty acids were neutralized with N-methyldiethanolamine (manufactured by Tokyo Kasei Kogyo Co., Ltd.) or a 1-mol adduct of N-methylethanolamine with propylene oxide to prepare body cleansing compositions shown in Table 1. The performance of the body cleansing composition was evaluated by the following various methods. Table 1 shows the performance evaluation results.

Ingredients used Myristic acid Made by Kao Lunac (registered trademark) MY-98
Palmitic acid Kao LUNAC P-95
Triethanolamine Sodium myristate from Tokyo Chemical Industry Potassium myristate from Tokyo Chemical Industry Fuji Film Wako Chemical

[Foamability test]
Based on the Ross-Miles test method JIS K 3362, the foaming power of an aqueous solution with a sample concentration of 0.25% by weight was measured at 40°C.
4-step judgment criteria ◎: Very good (200 mm or more)
○: Good (150 mm or more and less than 200 mm)
△: Slightly inferior (100 mm or more and less than 150 mm)
×: defective (less than 100 mm)

[Hue Stability]
The detergent composition was stored in a constant temperature bath at 80° C. for one week, and the change in hue was visually observed and evaluated.
◎: Very good (almost no change in hue)
○: Good (there is a slight change in hue)
△: Slightly inferior (there is a change in hue)
×: Poor (there is considerable change in hue)

[Low temperature stability]
The detergent composition was frozen at −10° C., gradually heated, and its appearance was visually observed to measure the temperature at which it became transparent. Evaluation criteria are as follows.
◎: very good (less than 20 ° C.)
◯: Good (20° C. or more and less than 40° C.)
△: Slightly inferior (40° C. or more and less than 50° C.)
×: defective (50 ° C. or higher)

[Evaluation of Foam Elasticity]
For each cleansing agent composition, a total of 10 professional panelists (5 males and females) were used to evaluate the elasticity of the foam in a hand washing test. The hand-washing test was carried out using tap water with 0.5 mL of the detergent composition. In addition, the evaluation criteria are as follows.
◎: Very good (the foam has considerable elasticity and creamy foam quality, and 8 to 10 out of 10 people answered that it was good)
○: Good (the foam has a little elasticity, and 6 to 7 out of 10 people answered that it was good)
△: Slightly inferior (the foam has a slight elasticity, and 3 to 5 out of 10 people answered that it was good)
×: Poor (the foam has no elasticity, the foam quality is watery, and 0 to 2 out of 10 people answered that it was good)

With respect to the performance evaluation in Table 1, Examples 1 to 4, which were prepared within the scope of the personal cleansing composition of the present invention, exhibited high lathering power, high color stability, and low temperature stability. Excellent results were obtained. Furthermore, good results have been obtained with respect to foam resilience.

The body cleansing composition of Comparative Example 1 had low foaming power and poor color stability, and was not suitable for practical use. In addition, the body cleansing compositions of Comparative Examples 2 and 3 had poor low-temperature stability and foam resilience, and were not suitable for practical use.
The body cleansing composition of Comparative Example 4, which is outside the scope of the present invention, had a low foaming power and could not withstand practical use. In addition, the body cleansing composition of Comparative Example 5 had poor low-temperature stability and could not withstand practical use.

Furthermore, the following formulations were prepared within the scope of the present invention. "% by weight" described in the examples is the content of each component in the entire body cleansing composition obtained, and is the weight % of the pure content. All of them were body cleansing compositions having high foaming power, high hue stability, excellent low-temperature stability, and high foam resilience.

Example 5
Body soap Neutralized salt of myristic acid and alkanolamine of Production Example 1 8% by weight
Neutralized salt of palmitic acid and alkanolamine of Production Example 1 1% by weight
Neutralized salt of cocoyl glutamic acid (*1) and N-methyldiethanolamine 4% by weight
Sodium lauroamphoacetate (*2) 4% by weight
Hydroxypropyl methylcellulose (*3) 0.5% by weight
The water balance performance evaluation results were: foaming power test ⊚, color stability ⊚, low temperature stability ⊚, and foam resilience evaluation ⊚.

Example 6
Body soap Neutralized salt of myristic acid and alkanolamine of Production Example 1 19% by weight
Neutralized salt of palmitic acid and alkanolamine of Production Example 1 3% by weight
Neutralized salt of oleic acid and alkanolamine of Production Example 1 1% by weight
Neutralized salt of lauroyl glutamic acid (*4) and alkanolamine of Production Example 1 1% by weight
Lauramidopropyl hydroxysultaine (*5) 5% by weight
Hydroxypropyl methylcellulose 0.3% by weight
The water balance performance evaluation results were ◯ for foaming power test, ⊚ for color stability, ◯ for low temperature stability, and ⊚ for evaluation of foam resilience.

Example 7
Body soap Neutralized salt of myristic acid and alkanolamine of Production Example 1 23% by weight
Neutralized salt of palmitic acid and alkanolamine of Production Example 1 2% by weight
Neutralized salt of lauroyl glutamic acid and alkanolamine of Production Example 1 1% by weight
Lauramidopropylamine oxide (*6) 1% by weight
PEG-2 cocamine (*7) 2% by weight
Glycerin (*8) 5% by weight
Hydroxypropyl methylcellulose 0.2% by weight
EDTA/tetrasodium (*9) 0.2% by weight
Methylparaben (*10) 0.2% by weight
The water balance performance evaluation results were: foaming power test ⊚, color stability ⊚, low temperature stability ⊙, foam resilience evaluation ⊚.

Example 8
Hand soap Neutralized salt of myristic acid and alkanolamine of Production Example 1 5% by weight
Neutralized salt of cocoyl glutamic acid and alkanolamine of Production Example 1 1% by weight
Lauramidopropylamine oxide 3% by weight
Sodium cocoamphoacetate (*11) 12% by weight
PEG-2 caprylylamine (*12) 2% by weight
Glycerin 3% by weight
The water balance performance evaluation results were: foaming power test ⊚, color stability ⊚, low temperature stability ⊚, and foam resilience evaluation ⊚.

Example 9
Body shampoo Neutralized salt of myristic acid and alkanolamine of Production Example 1 18% by weight
Neutralized salt of palmitic acid and alkanolamine of Production Example 1 2% by weight
Neutralized salt of laureth-6 carboxylic acid (* 13) and alkanolamine of Production Example 1 9% by weight
Neutralized salt of lauroyl glutamic acid and alkanolamine of Production Example 1 1% by weight
Hydroxyalkyl (C12-14) hydroxyethyl sarcosine (*14) 1% by weight
PPG-2 cocamide (*15) 1% by weight
Myristyl alcohol (*16) 1% by weight
Sorbitol (*17) 3% by weight
Hydroxypropyl methylcellulose 0.2% by weight
The water balance performance evaluation results were: foaming power test ⊚, color stability ⊚, low temperature stability ⊚, and foam resilience evaluation ⊚.

(* 1): Amisoft (registered trademark) CA (manufactured by Ajinomoto Healthy Supply Co., Ltd.)
(*2): Softazolin LHL (manufactured by Kawaken Fine Chemicals)
(* 3): Metrose (registered trademark) 60SH10000 (manufactured by Shin-Etsu Chemical Co., Ltd.)
(* 4): Amisoft LA-D (manufactured by Ajinomoto Healthy Supply Co., Ltd.)
(*5): Softazolin LSB (manufactured by Kawaken Fine Chemicals)
(*6): Softazolin LAO-C (manufactured by Kawaken Fine Chemicals Co., Ltd.)
(*7): Viscofine E2C (manufactured by Kawaken Fine Chemicals)
(* 8): Glycerin (manufactured by Tokyo Chemical Industry Co., Ltd.)
(* 9): Cherest (registered trademark) 2D-SD (manufactured by Maruzen Pharmaceutical Industry Co., Ltd.)
(*10): Methylparaben (manufactured by Tokyo Chemical Industry Co., Ltd.)
(*11): Softazolin CH (manufactured by Kawaken Fine Chemicals)
(*12): Formate 2E8 (manufactured by Kawaken Fine Chemicals)
(* 13): Kao Akipo (registered trademark) RLM-45 (manufactured by Kao Corporation)
(*14): Softazolin LMEB (manufactured by Kawaken Fine Chemicals)
(*15): Amizet 1PC (manufactured by Kawaken Fine Chemicals)
(*16): Calcol (registered trademark) 4098 (manufactured by Kao Corporation)
(* 17): Sorbitol (manufactured by Tokyo Chemical Industry Co., Ltd.)

As described above, it has been clarified that the present invention provides a body cleansing composition having high foaming power, high hue stability, excellent low-temperature stability, and high foam resilience. rice field.

INDUSTRIAL APPLICABILITY The body cleansing composition of the present invention can be suitably used as a body cleansing composition having high foaming power, high hue stability, excellent low-temperature stability, and high foam resilience.

Claims (2)

Component (a): A personal cleansing composition comprising 5 to 25% by weight of a neutralized salt of a higher fatty acid having 14 to 18 carbon atoms and an alkanolamine of the following general formula (1).

(In the formula, R ¹ represents a methyl group, and R ² and R ³ represent a hydroxyalkyl group having 2 to 3 carbon atoms which may be the same or different.) Alkanolamine is represented by the following general formula (2)

(In the formula, ^R4 represents a methyl group, R5 represents a hydroxyalkyl group having ² carbon atoms, and R6 represents a hydroxyalkyl group having ³ carbon atoms.)
2. The personal cleansing composition according to claim 1, which is an alkanolamine represented by: