JP2587745B2 - Bath composition - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is excellent in moisturizing effect of skin and improving effect of bulkiness, and has no stickiness after bathing.
The present invention relates to a bath preparation composition which gives a moist feeling.

[0002]

2. Description of the Related Art Bathing is an indispensable act in daily life, having various effects such as cleansing the body, warming the body as well as the limbs as well as the core, and mentally relaxing. On the other hand, many people complain of the loss of oil content from the skin due to bathing, especially the bulk of the skin after bathing in winter. At present, such persons usually use various skin care products such as lotions and creams after bathing in order to suppress 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, there is an attempt to prevent oil from being lost from the skin by adding an oil or a humectant to the bath agent.

[0003]

However, when a bath agent to which an oil component such as oil is added is used, the skin care effect is insufficient, or the oil component is not sufficient to exert its effect. When a bath agent to which an amount is added is used, there is a problem that an oily component remains on the skin more than necessary after bathing, causing a particular sticky feeling. Therefore, there has been a demand for a bath agent which is excellent in the moisturizing effect of the skin and the effect of improving the bulkiness and which has no stickiness of the skin after bathing.

[0004]

Means for Solving the Problems In view of such circumstances, the present inventors have conducted intensive studies, and as a result, a bath preparation containing a cholesteryl ester derivative and rice germ oil is excellent in the effect of protecting the skin and improving the bulkiness. In addition, the present invention has been found to be free of stickiness after bathing and to provide a moist feeling, thereby completing the present invention.

That is, the present invention provides a bath composition containing a cholesteryl ester derivative and rice germ oil.

The cholesteryl ester derivative used in the present invention includes cholesteryl esters of saturated or unsaturated linear or branched fatty acids having 8 to 20 carbon atoms, among which monomethyl branched fatty acid cholesteryl esters are preferred. Specific examples include cholesteryl isostearate, cholesteryl isopalmitate, cholesteryl isomiristate and the like. The cholesteryl ester derivative may be an extract from a mammalian brain tissue or the like, or a synthetic one. The amount of the cholesteryl ester derivative is 0.1% of the whole composition.
It is preferable that the content be 1 to 60% by weight (hereinafter, simply indicated by "%").

The rice germ oil used in the bath composition of the present invention is an oil or fat obtained from rice bran obtained from rice seeds. The amount of rice germ oil is 1% of the total composition.
It is preferably set to 〜50%.

[0008] In addition to the above essential components, the bath agent composition of the present invention may contain one or more of the following oily components to enhance the moisturizing effect. (1) Fats and oils Soybean oil, jojoba oil, avocado oil, almond oil, olive oil, cacao oil, sesame oil, persic oil, castor oil, coconut oil, mink oil, beef tallow, pork tallow, and other natural oils and fats Hydrogenated hydrogenated oils and synthetic triglycerides such as myristic glyceride and 2-ethylhexanoic acid glyceride.

(2) Waxes Carnauba wax, whale wax, beeswax, lanolin and the like. (3) Hydrocarbons such as liquid paraffin, vaseline, 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 and the like.

(6) Esters Cetyl octanoate, myristyl lactate, cetyl lactate, isopropyl myristate, myristyl myristate, isopropyl palmitate, isopropyl adipate, butyl stearate, decyl oleate, cholesterol isostearate and the like. (7) Essential oils Mentha oil, jasmine oil, show brain oil, hinoki oil, spruce oil, ryu oil, turpentine oil, cinnamon oil, bergamot oil, mandarin oil, shobu 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, galley
Niol , camphor, thymol, spiranthol, pinene, limonene, terpene compounds and the like. (8) Silicone oils, such as dimethylpolysiloxane.

It is preferable to mix these oily components in the range of 0.1 to 90%. Further, the bath composition of the present invention, in addition to the above components, if necessary, further contain a dispersant or emulsifier of an oily component such as a water-soluble polymer, a surfactant, etc. When dissolved in bath water, oil components are prevented from floating on the water surface, and the bath water becomes cloudy.
The transparency of the 01% aqueous solution can be set to 40 cm or less, preferably 20 cm or less, so that a high-grade image of a milk bath can be created.

The above water-soluble polymers 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 and nonionic surfactants and natural and synthetic surfactants can be used, but nonionic surfactants are preferred in consideration of skin irritation.

Examples of the nonionic surfactant include, for example,
Glycerin fatty acid ester, propylene glycol fatty acid ester, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbite tetraoleate, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene glycol, polyoxyethylene polyoxypropylene alkyl ether And polyethylene glycol fatty acid esters, polyoxyethylene castor oil, polyoxyethylene hardened castor oil, polyglycerin fatty acid esters, and the like. These nonionic surfactants act as emulsifiers for the oily component.

The dispersant or emulsifier of these oily components is
One or two or more kinds are used in combination, and the compounding amount is preferably 5 to 100% with respect to the oily component,
Particularly preferably, it is 7 to 60%.

The bath composition of the present invention may further contain the following known components which are commonly used in bath compositions. However, the components which can be mixed are not limited to those exemplified above. 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 and the like. (C) Organic acids Succinic acid, fumaric acid, malic acid, tartaric acid, citric acid, benzoic acid and the like.

(D) Herbal medicines Fennel, oak, chamomile, cinnamon, safflower, peony,
Ginger, iris, senkyu, touki, chimpanzee, sage beetle, valerian, juniper, spruce, light load, bukuro, ginseng, etc.

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

(F) Vitamins Vitamin A, vitamin C, vitamin D, vitamin E and the like. (G) fragrances

(H) Others Sulfur, hot water, mineral sand, mica powder, neutral clay, rice bran, bactericide, preservative, and other ingredients required for preparation. The bath agent composition of the present invention is prepared by adding the above-mentioned optional components to the above-mentioned essential components as needed and mixing them. At this time, the amount of the optional component is usually preferably 0 to 2000% with respect to the essential component of the bath agent of the present invention.

The bath composition of the present invention prepared as described above may contain an appropriate amount of water, preferably about 5% of an oily component.
It may be in the form of an emulsion emulsified by adding 0 to 500%, more preferably 100 to 400% of water. In addition, the bath agent composition of the present invention, like a known bath agent,
Various dosage forms (forms) such as powders, granules, tablets, and liquids can be obtained. In addition, the bath agent composition of the present invention is used by putting it in bath water at the time of bathing, and in this case, the cholesteryl ester derivative and the rice germ oil concentration are usually 0.1 to 0.1 in the bath water, respectively.
500 ppm, 0.2-500 ppm, especially 0.2-400
It is preferable that the amount used once be determined so as to be 1 ppm to 1 to 400 ppm.

[0025]

The bath agent composition of the present invention is excellent in moisturizing effect on skin and improving effect on bulkiness, and can give a moist feeling without stickiness after bathing.

[0026]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the invention is limited thereto. Example 1 A bath composition having the composition shown in Table 1 was prepared by a conventional method.
Each of the prepared bath agent compositions was placed in 150 l of bath water and used by 40 panelists. The overall evaluation after use (comprehensive 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 comparative products. Table 2 shows the results.

[0027]

[Table 1]

[0028]

[Table 2]

 ────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-3-287524 (JP, A) JP-A-4-112821 (JP, A) JP-B-62-2927 (JP, B2) ▲ VI ▼ ”, 1991, Yakuji Nippo-sha, pp. 22-31,“ Dictionary of Chemistry ”, 1978, Kyoritsu Shuppan, Vol. 2, p. 181

Claims (1)

(57) [Claims] 1. A bath composition comprising a cholesteryl ester derivative and rice germ oil.