JP5548373B2 - Bath agent composition - Google Patents

Description

  The present invention relates to a bath agent composition.

  It is known that a bath preparation containing a carbon dioxide generator is excellent in blood circulation promoting effect and hardly causes hot water cooling after bathing (see Patent Document 1). In order to improve the feeling on the skin in addition to the warmth by promoting blood circulation, a bathing agent containing an oil component in a carbon dioxide gas generator (see Patent Document 2), or an oil component containing 60% or more of a fatty acid ester in the carbon dioxide gas generator And a bath agent containing a nonionic surfactant (see Patent Document 3), a carbon dioxide generator, an oily component having a carbon dioxide oil phase / water phase distribution ratio of 1.1 or more, a water-soluble polymer, and A bath composition containing a nonionic surfactant has been reported (Patent Document 4).

JP 59-70609 A JP-A 63-93711 Japanese Patent Laid-Open No. 2-115116 JP-A-2005-97128

  On the other hand, with the recent spread of information that “bathing in lukewarm water is preferable for health”, a trend toward saving, and environmental considerations, an increasing number of households bathe at a low temperature of 36 to 38 ° C. However, many people feel unsatisfied with the warmth during bathing.

  However, conventional bath preparations have been designed with a focus on the warm feeling of promoting blood circulation so that the body feels warm after bathing and the effect of preventing hot water from being cooled.

  Therefore, as a result of intensive studies focusing on improving the feeling of warmth during bathing, the present inventor has found that a specific amount of fatty acid and fatty acid glyceride, and further a nonionic surface activity, with respect to the bath agent composition containing a carbon dioxide gas generator. When the agent is added, the warmth felt from the bath water during bathing is remarkably improved immediately after the bath agent composition is added to the bath water, and even when bathing in lukewarm water, the warmth feels excellent. It was found that an agent composition was obtained.

That is, the present invention includes the following components (A), (B), (C) and (D):
(A) Carbon dioxide generator 50-95% by mass,
(B) Fatty acid 0.05-1 mass%,
(C) fatty acid glyceride, and (D) a nonionic surfactant, the total content of component (B) and component (C) is 0.1 to 10% by mass in the composition, and (C ) / (B) (mass ratio) is 1 to 100.

  When bathing is performed using the bath agent composition of the present invention, the warmth feeling during bathing is significantly improved immediately after the bath agent composition is added to the bath water. Moreover, the generation of odor and scum peculiar to fatty acids is suppressed, which is preferable.

  In the bath agent composition of the present invention, the component (A) carbon dioxide gas generator may be any one that generates carbon dioxide gas when the bath agent composition is added to the bath water. Combinations are preferred. As the acid, any of organic acids and inorganic acids can be used, but those which are water-soluble and solid are preferable. Among them, for example, succinic acid, fumaric acid, malic acid, adipic acid, tartaric acid, benzoic acid, citric acid, pyrrolidone Organic acids such as carboxylic acid and salicylic acid are particularly preferred. In particular, fumaric acid, succinic acid, and malic acid are preferable, and fumaric acid is particularly preferable. Examples of inorganic acids include boric acid, metasilicic acid, and silicic anhydride. Moreover, as carbonate, sodium carbonate, sodium hydrogencarbonate, magnesium carbonate, calcium carbonate, potassium carbonate, etc. are preferable. These acids and carbonates can be used alone or in combination of two or more.

  The total content of carbon dioxide generator, for example, the total content of acid and carbonate, is 50 to 95% by mass in the bath agent composition from the viewpoint of obtaining a warm feeling during bathing, and further 75 to 95% by mass. % Is preferred. In view of the fact that the pH of the bath water can be 5 to 7 (0.01% by weight aqueous solution), the carbon dioxide gas in the bath water can be present in a dissolved state. Is in a mass ratio of 1: 0.9 to 1: 1.5, more preferably 1: 1 to 1: 1.3.

In the bath agent composition of the present invention, the type of the component (B) fatty acid is not particularly limited, but may be a saturated or unsaturated fatty acid having 4 to 24 carbon atoms. Examples of such fatty acids include caproic acid, caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, palmitoleic acid, isostearic acid, oleic acid, linoleic acid, and linolenic acid. These may be used alone or in combination of two or more. Particularly preferred are fatty acids having liquid properties at 36 ° C. The component (B) that is liquid at 36 ° C. may be a single fatty acid having a melting point of less than 36 ° C., but a mixture of a fatty acid having a melting point of 36 ° C. or higher and a fatty acid having a melting point of less than 36 ° C. is appropriately mixed It may be prepared so as to have liquid properties at ° C. By using such a fatty acid, the dispersibility when the bath agent composition is added to the bath water is excellent, so that the feeling of warmth during bathing is significantly improved, which is preferable.
The content of the component (B) is 0.05 to 1% by mass, more preferably 0.1 to 0.9% by mass, particularly 0% from the viewpoint of obtaining a warm feeling during bathing. .2 to 0.8% by mass is preferable. By containing in such an amount, a warm feeling during bathing can be sufficiently obtained, and a specific odor is not generated, which is preferable.

In the bath agent composition of the present invention, the component (B) can be uniformly dispersed in the bath water by containing the component (C) fatty acid glyceride in a specific ratio with respect to the component (B). As a result, an excellent warm feeling can be obtained. Moreover, generation | occurrence | production of the scum derived from a fatty acid can be suppressed and it is preferable.
Examples of the component (C) fatty acid glyceride include triglyceride, diglyceride and monoglyceride. Among these, triglyceride is preferable from the viewpoint that the component (B) is uniformly dispersed in the bath water and an effect of improving a warm feeling during bathing is obtained. In addition, although there is no restriction | limiting in the fatty acid which comprises a triglyceride, a diglyceride, and a monoglyceride, For example, a C2-C24 saturated fatty acid and unsaturated fatty acid, Preferably a C4-C18 saturated fatty acid and unsaturated fatty acid, for example, caproic acid , Caprylic acid, capric acid, lauric acid, myristic acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, α-linolenic acid, γ-linolenic acid. In particular, the component (C) is preferably liquid at 36 ° C., and the component (C) may be a single fatty acid glyceride having a melting point of less than 36 ° C., but the fatty acid glyceride having a melting point of 36 ° C. or higher. And a fatty acid glyceride having a melting point of less than 36 ° C. may be appropriately mixed so as to have a liquid property at 36 ° C. Use of such fatty acid glycerides is preferable because the dispersibility when the bath agent composition is added to the bath water is excellent, and the warmth feeling during bathing is significantly improved.

  The total content of the component (B) and the component (C) is 0.1 to 10% by mass, and more preferably 0.2 to 8% by mass in the bath agent composition from the viewpoint of a warming feeling improving effect during bathing. . The mass ratio (C / B) of the component (C) to the component (B) is 1 to 100, and more preferably 1 to 50. If the total amount and ratio of the components (B) and (C) are within this range, the fatty acid can be uniformly dispersed in the bath water, and the warmth during bathing is significantly improved.

  In the bath agent composition of the present invention, the component (D) nonionic surfactant uniformly disperses the components (B) and (C) in the bath water when the bath agent composition is added to the bath water. Has an effect. One kind of nonionic surfactant may be used, but it is preferable to use two or more kinds since the uniform dispersibility and the temporal dispersion stability of the bath agent composition can be maintained.

  Examples of the nonionic surfactant used include 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 alkenyl ether. , Polyoxyethylene polyoxypropylene glycol, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene polyoxypropylene alkenyl ether, polyethylene glycol fatty acid ester, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyglycerin fatty acid ester, etc. Is mentioned. One or two or more of these may be combined, and in particular, one or more nonionic surfactants selected from polyoxyethylene alkyl ethers and polyoxyethylene alkenyl ethers, and polyoxyethylene sorbite fatty acids It is particularly preferred to combine one or more nonionic surfactants selected from esters and polyoxyethylene sorbitan fatty acid esters.

  The content of these components (D) in the bath agent composition of the present invention is 0.01 to 20% by mass, particularly 0.1 to 10% by mass, in terms of uniform dispersibility and dispersion stability over time. preferable.

  The bath agent composition of the present invention further improves the dispersibility of the component (B) and component (C) when the bath agent composition is put into the bath water, and further improves the warmth feeling during bathing, Further, a water-soluble polymer may be contained from the viewpoint of improving skin feel. Examples of the water-soluble polymer include polyethylene glycol having a molecular weight of 200 to 20000, dextrin, alkyl glyceryl ether having a linear or branched alkyl group having 10 to 40 carbon atoms, and / or a carbon number optionally substituted with a hydroxyl group. 1-5 sulfoalkyl-modified polysaccharides, alkyl methacrylate methacrylate copolymers, and water-soluble nonionic cellulose ethers such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, ethylhydroxyethylcellulose, etc. , Ionic cellulose such as cationized cellulose, carboxymethylcellulose, cationized hydroxyethylcellulose, guar gum, hydroxyethyl guar gum, methyl guar Arm, ethyl guar gum, hydroxypropyl guar gum, hydroxyethyl guar gum, hydroxypropyl guar gum, starch, hydroxyethyl starch, methyl starch, ethyl starch, hydroxypropyl starch, and hydroxyethyl starch and hydroxypropyl starch. Of these, polyethylene glycol and dextrin having a molecular weight of 6000 to 20000 are particularly preferred from the viewpoint of shape retention when the skin feel and the bath preparation composition are made into solid forms such as tablets and granules.

  The content of these water-soluble polymers in the bath agent composition of the present invention is 1 to 25% by mass, further 2 to 20% by mass, particularly 2.5 to 20% by mass, especially 5 to 20% by mass. Is preferred.

  In the bath agent composition of the present invention, a known bath agent raw material that is usually blended in a bath agent can be blended within a range that does not impair the effects of the present invention. For example, sodium chloride, sodium sulfate, potassium nitrate, nitric acid Inorganic salts such as sodium, calcium nitrate, sodium polyphosphate, ammonium chloride, iron sulfate, sodium phosphate, sodium thiosulfate, boric acid, metasilicic acid, anhydrous silicic acid, etc .; sardine, sandalwood, valerian, mussel, sardine, orange peel, orange peel , Ginseng powder, carrot, cinnamon peony, mint leaves, red dragonfly, scorpion, beetle, burdock cutlet, ginger, ginseng, pine beetle, duckweed, jujube, ryuunou, saffron, duckweed extract, chimney, fennel, chimney, melamine, melissa Rosemary, Herniates such as Ronnier, Sawtooth grass, Arnica; Alcohols such as ethanol, stearyl alcohol, isopropyl alcohol, cetyl alcohol, hexadecyl alcohol; Polyhydric alcohols such as glycerin, propylene glycol, sorbitol; Titanium oxide, Zinc oxide, Talc, sulfur, mineral sand, hot spring flowers, casein, neutral clay, sodium salicylate, sodium carboxymethylcellulose, egg yolk powder, iri rice cake, mica powder, skim milk powder, bactericidal preservative, moisturizer, metal sequestering agent, flavoring, pigment, etc. Ingredients necessary for the preparation may be mentioned, but not limited thereto.

  The bath agent composition of the present invention can be produced according to a conventional method, and the form thereof may be any form such as powder, granule, granule, briquette tablet, tablet, two-part form of tablet and liquid.

Examples 1-5 and Comparative Examples 1-6
The bath preparations having the formulations shown in Tables 1 and 2 were produced according to a conventional method.

<Evaluation method>
(1) Warmth evaluation during bathing After submerging one arm in 25 L of warm water at 38 ° C, 12.5 g of bathing agent is added, and the warmth immediately after the addition is evaluated according to the following criteria, and the average value of 5 people is regarded as the evaluation score. did. In addition, when uniform dispersibility was remarkably bad, since it was unsuitable as a bath agent composition, warm evaluation was not implemented.

4: Feel very warm 3: Feel warm 2: Feel slightly warm 1: No change

(2) Uniform dispersibility ○: Good uniform dispersibility ×: Not uniformly dispersed (3) Generation of scum on the water surface ○: No scum generated ×: Scum generated

  As is apparent from Tables 1 and 2, when the bath agent composition of the present invention was used, good uniform dispersibility was achieved, and a high warm feeling was obtained immediately after the addition of the bath agent composition. In addition, the bath agent composition of the present invention was a good bath agent composition with no occurrence of scum when added to bath water.

Claims (4)

The following components (A), (B), (C) and (D):
(A) Carbon dioxide generator 50-95% by mass,
(B) Fatty acid 0.05-1 mass%,
(C) fatty acid glyceride, and (D) a nonionic surfactant, the total content of component (B) and component (C) is 0.1 to 10% by mass in the composition, and (C ) / (B) (mass ratio) is 1-100.   The bath agent composition according to claim 1, wherein component (C) is triglyceride.   The bath agent composition according to claim 1 or 2, wherein component (D) is two or more kinds of nonionic surfactants. The bath agent composition according to any one of claims 1 to 3, wherein the component (B) has a liquid property at 36 ° C.