JPH07247211A - Bathing agent composition - Google Patents

Abstract

PURPOSE:To obtain a bathing agent composition, containing inorganic salts combined with a water-soluble silk trituration with Glauber's salt and an oily substance, having heat retaining effects and excellent in preventing effects on drying up of the skin. CONSTITUTION:This bathing agent composition contains inorganic salts (sodium hydrogencarbonate, sodium sulfate or sodium chloride is especially preferred), a water-soluble silk trituration with Glauber's salt and an oily substance (an ester oil such as isopropyl myristate is especially preferred). The water-soluble silk trituration with the Glauber's salt is prepared by converting sodium sulfate into an anhydride, dissolving the anhydrous sodium sulfate at <=20% (g/ml) concentration in an aqueous solution of silk, freeze-drying the resultant solution and triturating the silk with anhydrous sodium sulfate in the form of a crystal (a eutectic) in a homogeneous state. The resultant composition has heat retaining effects without stickiness after use and is capable or synergistically manifesting preventing effects on drying up of the skin after the bathing by the combination to improve the moistness of the skin. Furthermore, the composition is excellent as a bathing agent composition without generating the turbidity or floating foreign materials after feed thereof into a bath.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bath composition having a heat retaining effect and an excellent effect of preventing the skin from becoming bulky.

[0002]

BACKGROUND OF THE INVENTION Bath compositions are generally sodium sulfate,
A mixture of inorganic salts such as sodium hydrogen carbonate with fragrances and pigments to give a scent and color to the bath water, and to relieve fatigue and give a relaxed feeling by the effect of blood circulation promotion and heat retention due to the action of inorganic salts. It is a thing.

However, although the conventional bathing agent composition provides a heat retaining effect, the skin may become bulky after bathing.
Of course, even in a fresh water bath that does not use a bath composition, the skin is often dried due to the hot water and the skin feels bulky after the bath. Further, the consumer's preference for the bath composition is
The products that have been promoting the heat retention effect in the past are changing to those that promote the beautiful skin effect.

[0004]

Under these circumstances, in recent years,
For the purpose of improving the bulkiness of the skin after bathing, oily substances,
There are examples of blending water-soluble polymers, plant extracts, milk components, etc. However, there are drawbacks such that the effect is not sufficient and, on the contrary, a sticky feeling or a blocky feeling is generated, and therefore, a material having an excellent feeling of use has been desired.

[0005]

[Means for Solving the Problems] In view of such circumstances, as a result of intensive research, the present inventors have an effect of keeping heat by containing an inorganic salt, a water-soluble silk doubly-refined salt and an oily substance, and The present invention has been completed by finding that it is possible to provide a bath agent composition which prevents the skin from becoming bulky after bathing and has no stickiness or blockage feeling.

[0006] That is, an object of the present invention is to provide a bath agent composition having a heat retaining effect and an excellent effect of preventing skin from becoming bulky.

In order to achieve the above object, the bath agent composition of the present invention has the following constitution. That is, the present invention is a bath agent composition containing an inorganic salt, a water-soluble silk double-spreading salt and an oily substance.

The present invention will be described in detail below. As the inorganic salt used in the present invention, one or two of sodium hydrogen carbonate, sodium thiosulfate, sodium sulfate, sodium chloride and potassium chloride, which have a high heat retention effect and a small difference in bulk specific gravity from water-soluble silk double-scattered Glauber's salt, are used. Although more than one species can be added, sodium hydrogen carbonate, sodium sulfate, and sodium chloride are particularly preferable. The blending amount of the above-mentioned inorganic salts is preferably 10 to 99% by weight with respect to the bath agent composition.

The water-soluble silk double-scattered Glauber's salt used in the present invention contains 20% sodium sulfate as an anhydride in an aqueous silk solution.
It was dissolved at a concentration of not more than% (g / ml), lyophilized, and triturated with anhydrous sodium sulfate in the form of crystals (eutectic) in a homogeneous state. This water-soluble silk-Bihuangbai salt keeps the silk component in a water-soluble state and has no difference in bulk specific gravity from the inorganic salt used in the bath composition, so it is uniform without separation in the powder mixing tank. In addition, since the hygroscopicity is weak, the bath composition does not get damp during storage. Sodium sulphate saltes out the silk aqueous solution and produces granular or viscous silk components.
It is preferably dissolved at a concentration of 0% (g / ml) or less.

As the silk aqueous solution, as proposed in Japanese Patent Publication No. 57-4723, a copper-ethylenediamine aqueous solution, a copper hydroxide-ammonia aqueous solution, a copper hydroxide-alikari-glycerin aqueous solution, a lithium bromide aqueous solution, calcium, The refined silk raw material is dissolved in at least one solvent selected from the group consisting of an aqueous solution of magnesium or zinc hydrochloride, its nitrate or its thiocyanate, and an aqueous solution of sodium thiocyanate, followed by dialysis. Further, as proposed in Japanese Patent Publication No. 59-31520, it can be obtained by hydrolyzing the silk aqueous solution obtained by the above method with an enzyme, an acid or an alkali. The silk powder obtained by spray-drying and freeze-drying these silk aqueous solutions has a slower dissolution rate than the inorganic salt as a raw material for bath agents, and when this is mixed in the bath, the silk powder is dissolved even after the inorganic salt is dissolved. Is suspended in water or on the surface in the form of foreign matter and deteriorates the product image. Therefore, the above-mentioned water-soluble silk component is used as water-soluble silk doubly sprinkled Glauber's salt which is eutecticly dispersed with anhydrous sodium sulfate.

The average degree of polymerization of the silk component is preferably 2 to 2000, more preferably 4 to 100. Also,
The protein concentration of the silk aqueous solution is usually preferably 0.1 to 20% by weight, more preferably 0.2 to 10% by weight. Furthermore, the ratio of the silk component in the water-soluble silk double-scattered Glauber's salt is preferably 1 to 50% by weight, more preferably 5 to 20% by weight. And, the compounding amount of the above-mentioned water-soluble silk double-spreading salt is preferably 0.05 to 90% by weight with respect to the bath composition.

The oily substance used in the present invention has a freezing point of 3
Examples include natural fats and oils or hydrogenated products thereof, squalane, squalene, ester oils and the like at 0 ° C. or lower. Of these, ester oil is preferable. The blending amount of the oily substance is preferably 0.5 to 10% by weight based on the bath agent composition. As the above natural fats and oils, avocado oil, almond oil, olive oil,
Sesame oil, cacao oil, safflower oil, soybean oil, corn oil, rapeseed oil, persic oil, castor oil, jojoba oil,
Palm oil, palm kernel oil, palm oil and the like can be mentioned. Also,
As the above ester oil, isopropyl myristate,
Isopropyl palmitate, myristyl myristate,
Isocetyl myristate, oleyl oleate, decyl oleate, octyldodecyl oleate, octyldodecyl myristate, cholesterol isostearate, myristic acid glyceride, lanolin fatty acid octyldodecyl, lanolin fatty acid isopropyl, reduced lanolin, liquid lanolin, myristic acid glyceride, 2 -Ethylhexanoic acid glyceride and the like.

Furthermore, in addition to the above-mentioned essential components, a bath agent composition of the present invention may optionally contain a surfactant to prevent oily substances from floating on the surface of the bath when dissolved in bath water. You can Nonionic and anionic surfactants are suitable as surfactants. For example, sodium lauryl sulfate, sodium polyoxyethylene lauryl ether sulfate, lauric acid diethanolamide,
Glycerin monostearate, polyethylene glycol monostearate, polyoxyethylene glyceryl monostearate, propylene glycol monostearate, sorbitan monolaurate, polyoxyethylene sorbitan monooleate, polyoxyethylene cetyl ether, polyoxyethylene oleyl ether, Examples include polyoxyethylene hydrogenated castor oil, polyoxyethylene glyceryl triisostearate, fatty acid soap, N-acyl glutamate and the like.

The bath composition of the present invention may be further blended with the following commonly used starting materials for bath compositions, which are not limited to those specifically exemplified.

A) Inorganic salts Sodium carbonate, sodium sesquicarbonate, magnesium carbonate, borax, calcium nitrate, potassium nitrate, sodium nitrate, aluminum sulfate, sodium polyphosphate,
Ammonium chloride, iron sulfate, sodium phosphate, magnesium sulfate, calcium oxide, magnesium carbonate, sodium sulfide, potassium sulfide, etc.

A) Organic acids Succinic acid, fumaric acid, malic acid, tartaric acid, citric acid, etc.

C) Polyhydric alcohol Glycerin, polyethylene glycol, dipropylene glycol, sorbitol, etc.

D) Water-soluble polymer Sodium alginate, xanthan gum, polyvinyl alcohol, carboxyvinyl polymer, etc.

E) Crude drugs, herbs Chimpi, Touki, carrot, peony, ginger, perilla, mugwort, chamomile, peppermint, psyllium, peach, aloe, loofah, etc.

F) Pigments Blue No. 1, Blue No. 2, Yellow No. 4, Yellow No. 5, Yellow 202
No. (1), Red No. 106, Orange No. 205, riboflavin, etc.

G) Perfumes

The bath composition of the present invention can be produced by uniformly mixing the above components with stirring. In this case, the mixer may be any one that is usually used for stirring and mixing powders. For example, a V-shaped mixer, a ribbon mixer, etc. can be mentioned. The obtained bulk may be used in a bath as a powder as it is, or may be compression-molded and used as a tablet.

[0023]

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples. The methods and evaluation items used in the present invention are as follows. In addition,% shown in the examples means% by weight
Is.

(Evaluation Test Method) Ten subjects were bathed in hot water containing the examples or comparative examples, and each person evaluated the following items.・ Moisturizing effect ・ Preventing bulkiness ・ Stickiness

Examples 1 to 3 and Comparative Examples 1 to 3 The components shown in Table 1 were mixed and stirred with a ribbon mixer for 30 minutes to prepare a bath agent composition. Next, hot water of 41 ℃ 180
30 g of each bath agent composition was dissolved in l and 10 subjects took a bath.

[0026]

[Table 1]

The water-soluble silk double-spreading mirabilite used in the above examples was prepared by the following manufacturing method. Using 100% of raw silk silk waste as a raw silk material, a solution of 30 parts of Marcel soap and 3000 parts of water is refined by stirring for 3 hours at 95 to 98 ° C. to reduce residual glue to 0.1% by weight or less and washed with water. Then, it was dried with hot air at 80 ° C. On the other hand, 100 parts of calcium chloride was mixed with 100 parts of water to prepare 200 parts of a 38 wt% calcium chloride aqueous solution, and the mixture was heated to 110 ° C. 40 parts of smelted raw silk waste was added to this with stirring with a kneader for 5 minutes, and further stirred for 30 minutes to completely dissolve it.

Then, 2000 pieces of regenerated cellulose-based hollow fibers having an inner diameter of 200 μ, a membrane pressure of 20 μ and a length of 500 mm are bundled,
Using a hollow fiber type dialysis apparatus in which both ends of the hollow fiber are not focused and fixed (sealed), the above solution is introduced at a rate of 0.3 l / hour and dialyzed with deionized water, An aqueous silk solution was obtained. The silk aqueous solution had a fibroin concentration of 10.5% by weight and a residual calcium chloride content of 0.001% by weight.

Biopulase Conc (manufactured by Nagase Seikagaku Co., Ltd.), which is a proteolytic enzyme, was added to the silk aqueous solution in an amount of 1.0% by weight based on the solid content of silk fibroin.
The reaction was carried out for 4 hours while raising the temperature from 70 ° C to 70 ° C. Then boil for 15 minutes to complete the reaction and after cooling,
A clarified liquid of hydrolyzed silk was obtained by performing membrane filtration with a pore size of 0.6μ. The measurement result of the average degree of polymerization of the peptide is 5.
It was 9.

The concentration of silk component in the hydrolyzed silk aqueous solution was 10.0% by weight, and 200 ml of this was 10%.
(G / ml) was mixed with 800 ml of anhydrous sodium sulfate aqueous solution, and distilled water was further added to make 1000 ml to prepare a clear silk-sodium sulfate aqueous solution. The aqueous solution contains 2.0% by weight of silk component (g / ml) and sodium sulfate component of 8.
It was 0% (g / ml).

Then, the aqueous solution was freeze-dried. In freeze-drying, the aqueous solution was rapidly cooled to −30 ° C. and frozen. This is 0.5 torr at the beginning of drying and 0.05 torr at the end.
It was dried by a usual freeze-drying method at about r to obtain 100 g of pure white and homogeneous cake-like water-soluble silk dohi-gakubirite. This was pulverized to prepare a powdery water-soluble silk double-scattered Glauber's salt.

Table 2 shows the results of the bathing evaluation questionnaire.

[0033]

[Table 2]

As shown in Table 2, the examples were excellent in all evaluation items.

[0035]

EFFECTS OF THE INVENTION The bath composition of the present invention has no sticky feeling after use and has a heat-retaining effect, and the combination of the present invention synergistically exhibits the effect of preventing the skin from becoming bulky after bathing, thus providing a moisturizing effect on the skin. The feeling is improved, and no turbidity or floating of foreign matter occurs after the bath agent is put into the bath, which is extremely excellent as a bath composition.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyotoshi Kobayashi 5-15-1 Ginza, Chuo-ku, Tokyo Kanebo Co., Ltd. Cosmetics Division (72) Inventor Shinichi Onishi 5-15-1 Ginza, Chuo-ku, Tokyo Kanebo Co., Ltd.Cosmetics Division

Claims (1)

[Claims] 1. A bath agent composition comprising an inorganic salt, a water-soluble silk-sprayed mirabilite and an oily substance.