JP2001139456A - Skin cleanser composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a skin cleanser composition which inhibits the coagulation of solid products formed on the nozzle portion of a pump type container, gives the good sense of use, and is mild in the action on the skin. SOLUTION: This cleanser composition containing one or more fatty acid weak base salts, an amphoteric surfactant, a specific polyhydric alcohol and a sugar alcohol.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pump type container used for a body shampoo, a hand soap and the like, which suppresses solidification of a solidified substance formed at a nozzle portion, has a good feeling in use, and has a good skin feel. The present invention relates to a skin cleansing composition having a mild effect on skin.

[0002]

2. Description of the Related Art Conventionally, soaps, that is, fatty acid salts, have been mainly used for skin cleansing agents from the viewpoints of usability, stability, and price. Potassium salts and triethanolamine salts are often used in liquid detergents in consideration of good solubility in water, and pumps are often used. However, in the case of a pump type container, when a fatty acid salt is used as a cleaning base, the washing liquid remaining in the nozzle is solidified, which causes a problem that the pump is clogged. for that reason,
Pump clogging is prevented by blending a large amount of polyhydric alcohols such as propylene glycol and glycerin, but this is not satisfactory.

On the other hand, synthetic surfactants such as polyoxyethylene alkyl ether sulfates also show good water solubility, are often used as bases, have good detergency and foaming, and Clogging is eliminated. However, it has a drawback that the action on the skin is not mild when used continuously, although there is a degree of nullity at the time of rinsing and, to varying degrees. Further, in order to improve this drawback, a skin cleansing composition comprising a combination of a fatty acid salt and a specific quaternary ammonium salt type cationic surfactant (JP-A-9-104)
No. 618) and a liquid solidification inhibitor containing hydroxy fatty acid or a salt thereof as an active ingredient (Japanese Patent Application Laid-Open No. 9-48962), but those which are not sufficient in terms of prevention of clogging of a pump and foaming. Absent.

[0004]

In view of the above circumstances, the present inventors have conducted intensive studies, and as a result, the skin cleansing composition described below is effective in preventing clogging of a pump, and has high usability.
It was found that the feeling of use was good and the action on the skin was mild, and the present invention was completed.

That is, the present invention provides a skin cleansing composition which suppresses solidification of a solidified product formed in a nozzle portion of a pump type container, has a good feeling in use, and has a mild effect on the skin. It is intended to do so.

[0006]

The first object of the present invention to achieve the above object is to provide a weak base salt of a fatty acid, an amphoteric surfactant,
A skin cleansing composition comprising a sugar alcohol and a polyhydric alcohol other than the sugar alcohol, which is liquid at ordinary temperature (25 ° C.) and has a viscosity of 1000 mPa · s or less.

[0007]

Embodiments of the present invention will be described below in detail.

Specific examples of fatty acids include capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid and the like. In addition, coconut oil fatty acids, palm oil fatty acids, tallow fatty acids, and the like, which are mixtures thereof, can be used, but are not limited thereto. Preferably, they are capric acid, lauric acid, myristic acid, oleic acid, coconut oil fatty acid, and palm oil fatty acid.

As the weak base as a neutralizing agent for fatty acids, one or more of ammonia, triethanolamine, lysine, diisopropanolamine, 2-amino-2-methyl-1-propanol and the like can be arbitrarily mentioned. .
However, among these, triethanolamine is particularly preferred. The content of the weak base salt of a fatty acid in the final composition of the present invention is preferably 5 to 40% by mass, and particularly preferably 10 to 35% by mass because it is easy to use from the viewpoint of viscosity.

The amphoteric surfactants used in the present invention include carboxybetaine type, amidobetaine type, sulfobetaine type, hydroxysulfobetaine type, amidosulfobetaine type, phosphobetaine type, aminocarboxylate type, imidazoline derivative type, amidoamine It is a type, but not limited to this. For example, as a commercial product, SWANOL AM
-101 (Nikko Chemicals), Amphitol 20AB
(Made by Kao), Obazoline LB (made by Toho Chemical) and the like. Its content is 0.1 to 10 in the final composition of the present invention.
% By mass is preferred.

The sugar alcohol used in the present invention is a polyhydric alcohol derived from sugar having five or more hydroxyl groups in the molecule. Examples include, but are not limited to, sorbitol, mannitol, glucose, maltitol, xylitol, fructose, and the like.

The polyhydric alcohol used in the present invention includes:
Liquid at room temperature (25 ° C) and viscosity 1000 mP
a.s or less, other than sugar alcohols, such as propylene glycol, dipropylene glycol, glycerin, ethylene glycol, diethylene glycol,
Examples include, but are not limited to, 3-methyl-1,3-butanediol, 1,3-butylene glycol, dipropylene glycol, and the like.

The mass% ratio of the weak base salt of fatty acid to (sugar alcohol + polyhydric alcohol) is preferably from 99/1 to 50/50, particularly preferably from 90/10 to 60/40.

The skin cleansing composition of the present invention contains the above-mentioned components as essential components, and the composition contains other components such as anionic surfactants within the range of achieving the object of the present invention. Agents, cationic surfactants, nonionic surfactants, thickeners, oils, powders (pigments, pigments, resins), preservatives,
Components such as a fragrance, a humectant, a physiologically active ingredient, a salt, a solvent, an antioxidant, a chelating agent, a pearlizing agent, a neutralizing agent, a pH adjuster, an insect repellent, and an enzyme can be appropriately compounded.
Specific examples of the components are shown below, but are not limited thereto.

Examples of the anionic surfactant include α-acyl sulfonate, alkyl sulfonate, alkyl allyl sulfonate, alkyl naphthalene sulfonate, alkyl sulfate, alkyl ether sulfate, alkylamide sulfate, Polyoxyethylene alkyl ether sulfate, polyoxyethylene alkyl amide ether sulfate, alkyl phosphate, alkyl amide phosphate, alkylloylalkyl taurine salt, N-acyl amino acid salt,
Sulfosuccinate, perfluoroalkyl phosphate, and the like.

Examples of the ionic surfactant include alkyltrimethylammonium chloride, stearyltrimethylammonium chloride, stearyltrimethylammonium bromide, distearyldimethylammonium chloride, stearyldimethylbenzylammonium chloride, and behenyltrimethylammonium bromide.

Examples of the nonionic surfactant include fatty acid alkanolamide, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene alkyl ether, and alkylamine oxide.

As the adhesive, dimethyldiallylammonium chloride / acrylamide copolymer, acrylamide / acrylamide
Acrylic acid / dimethyldiallylammonium chloride copolymer, cellulose or derivatives thereof, keratin and collagen or derivatives thereof, calcium alginate, pullulan,
Agar, gelatin, tamarind seed polysaccharide, xanthan gum, xanthan gum, carrageenan, high methoxyl pectin, low methoxyl pectin, guar gum, gum arabic, crystalline cellulose, arabinogalactan, karaya gum, tragacanth gum, alginic acid, albumin, casein, curdlan, gellan gum, dextran, etc. Is mentioned.

Examples of the oil include volatile and non-volatile oils, solvents and resins usually used in cosmetics, and may be liquids, pastes or solids at room temperature, but liquids excellent in handling are preferable. Examples of oils include
For example, cetyl alcohol, isostearyl alcohol,
Higher alcohols such as lauryl alcohol, hexadecyl alcohol and octyldodecanol, fatty acids such as isostearic acid, undecylenic acid and oleic acid, myristyl myristate, hexyl laurate, decyl oleate, isopropyl myristate, hexyldecyl dimethyloctanoate, mono Esters such as glycerin stearate, diethyl phthalate, ethylene glycol monostearate, octyl oxystearate, hydrocarbons such as liquid paraffin, petrolatum, squalane, lanolin, reduced lanolin, wax such as carnauba wax, mink oil, cocoa butter, Fats and oils such as coconut oil, palm kernel oil, camellia oil, sesame oil, castor oil, olive oil and the like can be mentioned.

As powders, Red No. 201, Yellow No. 4,
Dyes such as blue No. 1 and black No. 401, lake dyes such as yellow No. 4 Al lake, yellow No. Ba lake, nylon powder, silk powder, silicone powder, cellulose powder, silicone elastomer spherical powder, polyethylene elastomer powder, polyethylene powder etc. Molecules, colored pigments such as iron oxide yellow, iron oxide red, chromium oxide, carbon black, ultramarine, navy blue, etc.
White pigments such as zinc oxide and titanium oxide, talc, mica,
Body pigments such as sericite and kaolin, pearl pigments such as mica titanium, metal salts such as barium sulfate, calcium carbonate, magnesium carbonate and magnesium silicate, inorganic powders such as silica and alumina, bentonite, smectite, and boron nitride. Can be The shape of these powders (spherical, rod-like, needle-like, plate-like, irregular, flake-like, spindle-like, etc.) is not particularly limited.

These powders may be subjected to conventionally known surface treatments such as fluorine compound treatment, silicone treatment, silicone resin treatment, pendant treatment, silane coupling agent treatment, and the like.
Titanium coupling agent treatment, oil treatment, N-acylated lysine treatment, polyacrylic acid treatment, metal soap treatment, amino acid treatment, inorganic compound treatment, plasma treatment, mechanochemical treatment, etc. No problem.

As the solvent, purified water, ethanol, light liquid isoparaffin, lower alcohol, ethers, L
Examples include PG, fluorocarbon, N-methylpyrrolidone, fluoroalcohol, volatile linear silicone, and next-generation Freon.

Examples of the physiologically active ingredient include substances which give some physiological activity to the skin when applied to the skin. For example, anti-inflammatory agents, anti-aging agents, ultraviolet protective agents, tightening agents, anti-oxidants, humectants, blood circulation promoters, antibacterial agents, bactericides, desiccants, cooling agents, warming agents, vitamins, amino acids, Examples include a wound healing promoter, a stimulant, an analgesic, a cell activator, and an enzyme component. Among them, natural plant extract components, seaweed extract components, and crude drug components are particularly preferable.
In the present invention, it is preferable to mix one or more of these physiologically active components.

Examples of these components include, for example, Ashitaba extract, Amacha extract, Altea extract, Aloe extract, Apricot extract, Ginkgo extract, Fennel extract, Oolong tea extract, Age extract, Ohgon extract, Oubak extract, Hypericum extract, Dutch mustard extract Extract, orange extract, seawater dried product, seaweed extract, hydrolyzed wheat powder, hydrolyzed silk, chamomile extract, carrot extract, kawamogi extract, licorice extract, syllium extract, kiwi extract, cucumber extract, gardenia extract, kumazasa extract, clara extract , Walnut extract, grapefruit extract, chlorella extract, mulberry extract, black tea extract, yeast extract, rice germ oil, collagen, salvia extract, bonsai extract, hawthorn extract, geo Extracts, radish extract, perilla extract, linden extract, peonies extract, birch extract, horsetail extract, Atlantic hawk extract, Atlantic hawthorn extract, Atlantic elderberry extract, Achillea millefolium extract, Acacia biloba extract, Sage extract, Senkyu extract, Japanese liquorice extract, Japanese radish extract, Thyme extract, tea extract, clove extract, chimney extract, touki extract, tonin extract, dokudami extract, tomato extract, natto extract, carrot extract,
Garlic extract, honey, hamamelis extract, chickpea extract, bisabolol, loquat extract, bukuroyou extract, propolis, loofah extract, peppermint extract,
Bodaiju extract, hop extract, maroni extract, mukuroji extract, melissa extract, peach extract, saxifrage extract, yuzu extract, mugwort extract, lavender extract, lemon extract, astragalus extract, rosemary extract, royal jelly extract, and the like can be given.

Also, biopolymers such as deoxyribonucleic acid, mucopolysaccharide, sodium hyaluronate, sodium chondroitin sulfate, collagen, elastin, chitin, chitosan, hydrolyzed eggshell membranes, amino acids, sodium lactate, urea, sodium pyrrolidonecarboxylate, Moisturizing ingredients such as betaine and whey, sphingolipids, ceramides, cholesterol, cholesterol derivatives, oily ingredients such as phospholipids, ε-aminocaproic acid, glycyrrhizic acid, β-glycyrrhetinic acid, anti-inflammatory agents such as lysozyme chloride, guaiazulene, hydrocortisone, Vitamins A, B2, B6, C, D, E, calcium pantothenate, vitamins such as biotin, nicotinamide, vitamin C ester, allantoin, diisopropylamine dichloroacetate, 4-amido Active ingredients such as nomethylcyclohexanecarboxylic acid, tocopherols, carotenoids, flavonoids, antioxidants such as tannins, lignans, saponins, cell activators such as α-hydroxy acids and β-hydroxy acids, γ-oryzanol, vitamin E derivatives, etc. Blood circulation promoters, bactericides such as isopropylmethylphenol, triclosan, hinokitiol, and benzalkonium chloride; cooling sensation agents such as l-menthol and peppermint oil; and wound healing agents such as retinol and retinol derivatives.

The skin cleansing composition of the present invention is applied to body shampoos, hand soaps, facial cleansers and the like.

[0027]

Next, the present invention will be described in detail with reference to examples, but the present invention is not limited to these examples. The test methods for foaming, feeling after use (freshness) after washing, skin irritation, and pump clogging are as follows. In addition, all compounding amounts are mass%. Table 1 shows the evaluation results.
Shown in

(Foaming test) According to the Ross Miles test method
The foaming was measured. However, the sample was a 2 mass% aqueous solution (C
aCO_Three, Using 50ppm artificial hard water), temperature is 40 ℃
is there. Evaluation criteria …: Extremely good foaming, foaming power 250 mm or more ○: Good foaming, foaming power 200 mm or more, 250 m
Less than m △: Foaming is normal, foaming power is 150mm or more, 200m
Less than × × Foaming is poor, foaming power is less than 150 mm

(Practical test: Usability) Ten professional panelists evaluated the usability (freshness) after washing according to the following criteria by actual use. Evaluation criteria ◎: 9 or more people answered that the “usability” was good ○… 6 to 8 people answered that the “usability” was good △: They answered that the “usability” was good When 3 to 5 people × × When 2 or less people answered that “usability” was good

(Skin irritation test) Skin irritation was evaluated in accordance with the protein denaturation rate test described below.
In other words, using aqueous high performance liquid chromatography,
The ovalbumin denaturation rate when a sample was added to an ovalbumin pH7 buffer so that the sample concentration became 1% was 22%.
It measured using the absorption peak of 0 nm.

[0031]

(Equation 1)

Ho: height of the absorption peak at 220 nm of ovalbumin Hs: 22 when the sample was added to the ovalbumin buffer
Height of the absorption peak at 0 nm

Evaluation criteria ◎: Ovalbumin denaturation rate, less than 30%…: Ovalbumin denaturation rate, 30% or more, less than 60% Δ: Ovalbumin denaturation rate, 60% or more, less than 80% ×: Ovalbumin denaturation rate, 80% or more

(Pump Clogging Prevention Test) The period until a solidified product was formed at the discharge port of the pump-type container was observed, and evaluated according to the following criteria. Evaluation is at room temperature (15 to 25 ° C)
And discharge was observed at least once a day. Evaluation Criteria …: When the solid was confirmed after the 21st day ○: When the solid was confirmed from the 14th to 20th days △: When the solid was confirmed from the 7th to 13th days In the case of × ... solidification was confirmed on days 0 to 6

Examples 1-3, Comparative Examples 1-9 Examples 1-3, Comparative Examples 1-9 based on the formulations shown in Table 1.
Was prepared, filled in a pump-type container, foamed for each, and evaluated for each item of feeling after use (freshness), skin irritation, and pump clogging after washing. Table 1 shows the evaluation results. As is clear from the results, the skin cleansing composition of the present invention (Examples 1 to 3).
Showed excellent performance. On the other hand, Comparative Examples 1 to
The composition No. 9 was insufficient in practical test results and in preventing clogging of the pump.

[0036]

[Table 1]

Example 4 A hand soap having the following formulation was prepared. This was excellent in foaming property, safety against skin, and feeling after washing and drying in a pump-type container. (Mass%) coconut oil fatty acid triethanolammonium 30 2-alkyl-N-carboxymethyl hydroxyethylimidazolinium betaine 5 coconut oil fatty acid diethanolamide 3 propylene glycol 5 sorbitol 4 fragrance appropriate amount purified water residue

Example 5 A body shampoo having the following composition was prepared. This was excellent in foaming property, safety against skin, and feeling after washing and drying in a pump-type container. (Wt%) triethanolammonium laurate 15 triethanolammonium stearate 5 lauryldimethylaminoacetate betaine 5 coconut oil fatty acid diethanolamide 3 glycerin 4 sorbitol 4 fragrance appropriate amount purified water residue

Example 6 A liquid facial cleanser having the following composition was prepared. This was excellent in foaming property, safety against skin, and feeling after washing and drying in a pump-type container. (Mass%) triethanolammonium laurate 4 diisopropanolammonium myristate 10 coconut oil fatty acid amidopropyl betaine 5 polyoxyethylene coconut oil fatty acid sodium amide ether sulfate 6 lauric acid diethanolamide 3 glycerin 3 sorbitol 2 flavor appropriate amount purified water residue

Example 7 A hand soap having the following composition was prepared. This was excellent in foaming property, safety against skin, and feeling after washing and drying in a pump-type container. (Mass%) Ammonium laurate 6 Diisopropanol ammonium myristate 10 Palm oil fatty acid amidopropyl betaine 5 Polyoxyethylene coconut oil fatty acid sodium amide ether sulfate 6 Lauric acid diethanolamide 3 Glycerin 3 Sorbitol 2 Perfume Appropriate amount Purified water Residue

[0041]

According to the present invention, the solidification of the solidified material formed at the nozzle portion in the pump type container is suppressed, and the feeling of use is good.
It is clear that the action on the skin provides a mild skin cleansing composition.

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Claims (3)

[Claims] 1. A weak base salt of a fatty acid, an amphoteric surfactant, a sugar alcohol, and a polyhydric alcohol other than the sugar alcohol, which is liquid at ordinary temperature (25 ° C.) and has a viscosity of 1000 mPa · s or less. A skin cleansing composition, characterized in that: 2. The skin according to claim 1, wherein the weak base is at least one member selected from ammonia, triethanolamine, lysine, diisopropanolamine and 2-amino-2-methyl-1-propanol. Detergent composition. 3. The skin cleansing composition according to claim 1, wherein the weak base is triethanolamine.