JPH0680557A - Bathing agent composition - Google Patents

Abstract

PURPOSE:To obtain a bathing agent composition having excellent effect to keep the moisture and prevent the dryness of the skin, free from tacky feeling of the skin after bathing and giving moist skin by using an interkeratocytic lipid or a substance having similar structure and a silicone as active components. CONSTITUTION:The objective composition contains (A) 0.1-60wt.% of an interkeratocytic lipid (e.g. ceramide or cholesteryl ester) or a substance having similar structure and (B) 1-50wt.% of a silicone oil (e.g. methylphenylpolysiloxane) based on the total composition as active components. The active components are compounded with oily component, dispersing agent or emulsifying agent for the oily component and conventional component for ordinary bathing agent and formed in the form of powder, granule, tablet, liquid, etc. The agent is thrown into bath water before bathing. The amount of the agent is selected to give the bath water containing 0.1-500ppm (preferably 0.2-400ppm) each of the components A and B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is excellent in the moisturizing effect on skin and the effect of improving bulkiness, and is non-greasy after bathing.
The present invention relates to a bath agent composition that provides a moist feel.

[0002]

2. Description of the Related Art Bathing has various effects such as cleansing the body, warming not only limbs but also the core, and relaxing mentally, and is an essential activity in daily life. On the other hand, many people complain of the loss of oil content from the skin due to bathing, especially the bulkiness of the skin after bathing in the winter. In addition, such people usually use various skin care products such as lotions and creams after bathing in order to suppress the bulkiness of the skin after bathing. However, when using a skin care product, labor is required for its application and the like, and it is difficult for an elderly person to apply the skin care product to every corner of the body. Therefore, attempts have been made to prevent the loss of oil from the skin by adding an oil or a moisturizer to the bath agent.

[0003]

However, when a bath agent containing an oily component such as oil is used, the skin care effect is insufficient or the addition of the oily component is sufficient. When a bath additive with an added amount is used, there is a problem in that the oily component remains unnecessarily on the skin after bathing, resulting in a particular sticky feeling. Therefore, there has been a demand for a bath preparation which is excellent in the moisturizing effect on the skin and the effect of improving the bulkiness, and which is not sticky to the skin after bathing.

[0004]

In view of such circumstances, the present inventors have conducted diligent research, and as a result, a bath agent containing intercellular lipids of keratinocytes or a substance having a similar structure and silicone oil was
The present invention has been completed by finding that it is excellent in the effect of protecting the skin and the effect of improving bulkiness, and that it has no stickiness after bathing and brings a moist feel.

That is, the present invention provides a bath agent composition containing a keratinocyte lipid or a structural material similar thereto and silicone oil.

Examples of the keratinocyte lipid used in the bath agent composition of the present invention include ceramide, sugar ceramide, cholesterol, fatty acid, cholesteryl ester and the like, among which ceramide, sugar ceramide and cholesteryl ester are preferable. These may be those extracted from natural products such as mammalian brain tissue or those obtained by synthesis. Examples of the cholesteryl ester include cholesteryl esters of saturated or unsaturated straight chain or branched chain fatty acids having 8 to 20 carbon atoms, and among them, monomethyl branched fatty acid cholesteryl ester is preferable.

[0007] Further, a preferable example of the substance having a similar structure to the interkeratinocyte lipid is a substance having a similar structure to ceramide. The ceramide-like structural material has two long-chain hydrocarbon groups and a hydroxyl group and an amide group between them,
In addition, it refers to a lipid derivative in which the molecule can have a conformation on one plane, and examples thereof include those represented by the following general formula (1).

[0008]

[Chemical 1]

(In the formula, R ¹ represents a straight or branched chain saturated or unsaturated hydrocarbon group having 10 to 26 carbon atoms, and R ² represents a long chain or branched chain saturated or unsaturated group having 9 to 25 carbon atoms. Indicates an unsaturated hydrocarbon group)

These inter-keratinocyte lipids or their structurally similar substances can be used alone or in combination of two or more, and the total composition is 0.1 to 60% by weight (hereinafter, simply expressed as%). It is particularly preferable to add 1 to 50%.

As the silicone oil used in the bath agent composition of the present invention, for example, methylphenylpolysiloxane, methylpolysiloxane, octamethylcyclotetrasiloxane, dimethylsiloxane / methyl (polyoxyethylene) siloxane copolymer, Dimethyl siloxane / methyl (polyoxypropylene) siloxane copolymer, decamethylcyclopentasiloxane, dimethyl siloxane methyl (polyoxyethylene / polyoxypropylene) siloxane copolymer, myristyl silicone, methyl hydrogen polysiloxane, dodecamethyl cyclohexa Siloxane, hexamethylcyclotrisiloxane, methyl polycyclosiloxane, dimethyl siloxane / methyl stearoxy siloxane copolymer, dimethyl siloxane / methyl Chill oxy copolymer, octamethyltrisiloxane, etc. trimethylsiloxy silicic acid, and the like.

These silicone oils can be used alone or in combination of two or more, and the total composition is 1 to 50.
%, Especially 1 to 30% is preferable.

In addition to the above essential components, the bath agent composition of the present invention contains one or more of the following oily components,
The moisturizing effect can be further enhanced. (1) Fats and oils Soybean oil, jojoba oil, avocado oil, almond oil, olive oil, cocoa butter, sesame oil, persic oil, castor oil, coconut oil, mink oil, beef tallow, lard, and other natural fats and oils Hydrogenated oil obtained by hydrogenation and synthetic triglyceride such as myristic acid glyceride and 2-ethylhexanoic acid glyceride.

(2) Waxes Carnauba wax, whale wax, beeswax, lanolin and the like. (3) Hydrocarbons Liquid paraffin, petrolatum, paraffin microcrystalline wax, ceresin, squalane, pristane and the like. (4) Higher fatty acids Lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, lanolinic acid, isostearic acid and the like.

(5) Higher alcohols Lauryl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, lanolin alcohol,
Cholesterol, 2-hexyldecanol, etc.

(6) Esters Cetyl octanoate, myristyl lactate, cetyl lactate, isopropyl myristate, myristyl myristate, octyldodecyl myristate, isopropyl palmitate, isopropyl adipate, butyl stearate, decyl oleate and the like. (7) Essential oils Mint oil, jasmine oil, sho brain oil, cypress oil, spruce oil, ryu oil, turpentine oil, cinnamon oil, bergamot oil, mandarin oil, ginger oil, pine oil, lavender oil,
Bay oil, clove oil, hiba oil, rose oil, eucalyptus oil, lemon oil, thyme oil, peppermint oil, rose oil, sage oil, menthol, cineole, eugenol, citral, citronellal, borneol, linalool, geraniol, camphor, thymol, Spilanthol, pinene, limonene, terpene compounds, etc.

These oil components are contained in an amount of 0.1-9 in the total composition.
It is preferable to blend in the range of 0%. In addition to the above-mentioned components, the bath agent composition of the present invention further contains a dispersant or emulsifier for an oily component such as a water-soluble polymer and a surfactant, if necessary, to give a bath agent composition. When dissolved in bath water, prevent oily components from floating on the surface of the water, and make the bath water cloudy so that the 0.01% aqueous solution has a transparency of 40 cm or less, preferably 20 cm or less. You can also bring out an image.

Examples of the water-soluble polymer include sodium alginate, propylene glycol alginate,
Gum arabic, xanthan gum, pectin, tragacanth, sodium carboxymethylcellulose, methylcellulose, carboxyvinyl polymer, polyethylene glycol, polyvinyl alcohol, polyvinylpyrrolidone, milk protein, soy protein, gelatin, egg protein, sodium caseinate, whey protein and the like, Gum agents such as gum arabic and xanthan gum and water-soluble proteins such as sodium caseinate and whey protein are preferred.

As the above-mentioned surfactant, any of anionic / cationic / nonionic, silicone-based and natural / synthetic surfactants can be used. In consideration of skin irritation, the nonionic one is used. preferable.

As the nonionic surfactant, for example,
Glycerin fatty acid ester, propylene glycol fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbit fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, polyoxyethylene polyoxypropylene glycol, polyoxy Ethylene polyoxypropylene alkyl ether, polyethylene glycol fatty acid ester,
Examples thereof include polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, and polyglycerin fatty acid ester. These nonionic surfactants act as emulsifiers of the oily component.

Dispersants or emulsifiers of these oily components are
One kind or two or more kinds are used in combination, and the amount thereof is preferably 5 to 100% with respect to the oily component,
Especially preferably, it is 7 to 60%.

The bath composition of the present invention may further contain the following known components commonly used in bath formulations, but the components that can be incorporated are not limited to the exemplified ones. Absent.

(A) Inorganic salts Sodium chloride, sodium hydrogen carbonate, sodium carbonate, borax, sodium sulfate, sodium sulfide, sodium sesquicarbonate, sodium nitrate, sodium thiosulfate, sodium polyphosphate, sodium phosphate, calcium oxide, oxidation Magnesium, calcium carbonate, magnesium carbonate, potassium chloride, potassium sulfide, etc.

(A) Inorganic acids Boric acid, metasilicic acid, silicic anhydride, etc. (C) Organic acids Succinic acid, fumaric acid, malic acid, tartaric acid, citric acid, benzoic acid and the like.

(D) Crude drugs Fennel, oyster, chamomile, cinnamon, safflower, peony,
Ginger, iris, senkyu, Japanese smelt, chinpi, sojutsu, valerian, juniper, spruce, lightly-packed, sardines, carrots, etc.

(E) Dyes Tar dyes such as Yellow No. 4, Blue No. 1, Yellow No. 202 (1), etc. defined by the Ordinance of the Ministry of Health and Welfare, dyes of Appendix I and II, chlorophyll, riboflavin, crocin, safflower, anthraquinone, etc. Natural pigments recognized as food additives in.

(F) Vitamins Vitamin A, vitamin C, vitamin D, vitamin E, etc. (G) Perfumes

(H) Others Sulfur, Yunohana, Mineral sand, Mica powder, Neutral clay, Rice bran, Fungicides, Preservatives, and other necessary ingredients for formulation. The bath agent composition of the present invention is produced by adding the optional components to the essential components as needed and mixing them. In this case, the content of the optional components is usually preferably 0 to 2000% with respect to the essential components of the bath agent of the present invention.

In the bath agent composition of the present invention produced as described above, an appropriate amount of water, preferably about 5 parts of an oily component, is added.
It may be in the form of an emulsion obtained by adding 0 to 500%, and more preferably 100 to 400% of water to emulsify it. In addition to this, the bath agent composition of the present invention, like known bath agents,
It can be made into various dosage forms (forms) such as powder, granules, tablets and liquids. The bath agent composition of the present invention is used by putting it in a bath when bathing, and in that case, the keratinocyte lipid or its similar structural substance and the silicone oil concentration are usually 0.1 to 500 ppm respectively in the bath. , 0.2-500ppm, especially 0.2-400ppm, 1-400ppm, 1
It is preferable to determine the amount to be used each time.

[0030]

The bath agent composition of the present invention is excellent in the moisturizing effect on the skin and the effect of improving the bulkiness, and it is not sticky after bathing and can give a moist feel.

[0031]

The present invention will be described in more detail with reference to examples, but the present invention is not limited thereto. Example 1 A bath agent composition having the composition shown in Table 1 was prepared by a conventional method.
Each of the prepared bath agent compositions was put into 150 l of bath water, and 40 panelists used this. The overall evaluation after use (general feeling of use), the moist feeling of the skin after bathing, the effect of improving bulkiness and the feeling of stickiness were examined by comparison with a comparative product. The results are shown in Table 2.

[0032]

[Table 1]

[0033]

[Table 2]

Claims (1)

[Claims] 1. A bath agent composition containing intercellular lipids of keratinocytes or a structural material similar thereto and silicone oil.