JP5679752B2 - Bath agent composition - Google Patents

Description

  The present invention relates to a bath agent composition suitable for bathing in summer.

  After bathing, especially after bathing in summer, a bath preparation that can suppress sweating and provide a refreshing feeling is desired. Under these circumstances, as a bath agent composition that improves the sustainability of a refreshing feeling after bathing, a composition containing a specific amount of an organic zinc compound such as zinc sulfocolate or zinc gluconate has been reported (see Patent Document 1). ). Moreover, the bath agent to which the outstanding refreshing feeling was provided by specifying the particle size of zinc oxide is also reported (refer patent document 2). Furthermore, in order to provide a compression molding bath agent that does not cause sticking during production and does not disintegrate during storage, a bath agent containing a specific amount of a water-soluble zinc compound and a specific water-soluble polymer is also reported. (See Patent Document 3).

JP 2000-204033 A JP 11-246391 A JP 2005-232023 A

  However, with the rapid increase in temperature in summer in recent years, there is a strong demand for bath preparations that can exert even higher effects on such a refreshing feeling. In addition, none of the above bath preparations has been studied for the skin feel during bathing, and there is room for investigation regarding bath preparations that provide both an excellent refreshing feeling and a good skin feel during bathing.

  Accordingly, an object of the present invention is to provide a bath agent composition that remarkably improves the refreshing feeling after bathing and produces an extremely good skin moist feeling during bathing. The “moist skin feeling during bathing” in the present invention means that a smooth skin feel occurs during bathing.

  The inventor has been diligently studying the refreshing feeling after bathing, that is, the astringent action. The bath composition contains a zinc compound and an anionic polysaccharide having a sulfate group or a carboxyl group in a specific ratio. If it is a thing, it found out that the refreshing feeling after bathing improved remarkably, and the very moist feeling of skin was produced during bathing.

That is, the present invention includes the following components (A) and (B):
(A) Zinc compound (B) An anionic polysaccharide having a sulfate group or a carboxyl group, and the content of component (B) relative to the content of component (A) is 0.10 to 0 by mass ratio A bath composition that is .98 is provided.

  The above component (B) anionic polysaccharide having a sulfate group or carboxyl group, such as carrageenan or carboxymethyl cellulose, may be added to the bath agent for use as a binder, but the bath as described above. Since it does not give a refreshing feeling afterwards, it is unexpected that combining these polysaccharides and zinc compounds in a specific ratio has the effect of dramatically improving the refreshing feeling after bathing. It is.

  The bath agent composition of the present invention produces a very moist skin feeling during bathing and significantly improves the refreshing feeling after bathing.

It is a figure which shows the influence which the anionic polysaccharide etc. which have a sulfate group or a carboxyl group have on the astringent action (smooth feeling) of zinc sulfocolate. It is a figure which shows the influence which carrageenan and carboxymethylcellulose have on the astringent action (smooth feeling), such as a zinc compound.

Hereinafter, the present invention will be described in detail.
Examples of the component (A) zinc compound in the bath agent composition of the present invention include zinc compounds of inorganic acids such as zinc carbonate, zinc phosphate, zinc sulfate, zinc chloride; zinc citrate, zinc tartrate, zinc succinate, Examples include zinc compounds of organic acids such as zinc sulfocolate, zinc lactate, and zinc gluconate; zinc oxide and the like. These may be used alone or in combination of two or more. Among them, a zinc compound of an organic acid is preferable, and zinc gluconate and zinc sulfococolate are more preferable, because the refreshing feeling after bathing and the moist feeling of the skin during bathing are favorable due to the combined use with the component (B) described later. Zinc sulfocoborate is most preferred.

  In 100% by mass of the bath agent composition of the present invention, the content of the component (A) zinc compound is good for the refreshing feeling after bathing and the moist feeling of the skin during bathing in combination with the component (B) described later. Therefore, it is preferably 0.05 to 3.0% by mass, more preferably 0.1 to 2.5% by mass, and most preferably 0.2 to 2.0% by mass. When the content of the component (A) is within the above range, a refreshing feeling that is extremely comfortable for the body after bathing is produced, and the skin feel during bathing is changed by the combined use with the component (B) described later. This is preferable because a better moist feeling is exhibited.

  Moreover, it is preferable that the usage-amount of this invention composition at the time of bathing shall be the quantity from which the density | concentration of the zinc compound in bath water will be 0.1-8 ppm.

  The component (B) of the anionic polysaccharide having a sulfate group or a carboxyl group in the bath agent composition of the present invention has a good feeling of moist skin during bathing and a refreshing feeling after bathing. Carrageenan and sodium alginate are preferred. These may be used alone or in combination of two or more. Among these, carboxymethyl cellulose and carrageenan are particularly preferable from the viewpoint that the refreshing feeling after bathing can be further improved in combination with the component (A).

  The content of the component (B) in 100% by mass of the bath agent composition of the present invention is preferably 0.01 to 3.0% by mass because the moist feeling of the skin during bathing and the refreshing feeling after bathing are good. %, More preferably 0.015 to 2.5% by mass, still more preferably 0.02 to 2.0% by mass, even more preferably 0.025 to 0.9% by mass, Preferably it is 0.03-0.4 mass%. It is preferable that the content of the component (B) is within the above range because a good moist feeling is exhibited during bathing and a refreshing feeling that is extremely comfortable for the body after bathing.

  The mass ratio of the content of the anionic polysaccharide having a sulfate group or a carboxyl group to the content of the component (A) zinc compound in the bath agent composition of the present invention is the moist feeling of the skin during bathing. And from the point that the refreshing feeling after bathing is better, it is 0.10 to 0.98. Furthermore, 0.15 to 0.70 is preferable, and 0.20 to 0.60, particularly 0.30 to 0.50 is particularly preferable. If it is a bath agent composition containing the component (A) and the component (B) at such a ratio, a very good skin moist feeling is produced during bathing, and the component (A) and the component (B) ) And the refreshing feeling after bathing will dramatically improve.

  The bath agent composition of the present invention may further contain a component (C) a carbon dioxide gas generator. It is preferable to contain a carbon dioxide gas generator since heat dissipation after bathing due to vasodilation is added, and a refreshing feeling after bathing is brought about. The carbon dioxide generator is one that generates carbon dioxide when the bath agent composition is poured into bath water, and is preferably a combination of an acid and a carbonate. 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, pyrrolidonecarboxylic acid. Particularly preferred are organic acids such as acids and salicylic acid. Examples of inorganic acids include boric acid, metasilicic acid, and silicic anhydride. Moreover, as carbonate, sodium carbonate, sodium hydrogencarbonate, potassium carbonate, etc. are preferable. These acids and carbonates can be used alone or in combination of two or more.

  About content of the component (C) carbon dioxide generation product in the bath agent composition of this invention, from the point of the sustained effect of the refreshing feeling after bathing, content of a more preferable acid is the bath agent composition 100 of this invention. In the mass%, it is 10-80 mass%, Most preferably, it is 15-50 mass%, Most preferably, it is 20-49 mass%. Further, the carbonate content is more preferably 5 to 80% by mass, particularly preferably 10 to 50% by mass, and still more preferably 15 to 49% by mass.

  Furthermore, in the bath agent composition of the present invention, components other than the above, for example, inorganic salts such as magnesium oxide, calcium silicate, sodium metaphosphate, sodium chloride, calcium chloride, magnesium chloride; trehalose, erythritol, lactose, reduced starch syrup , Sugars other than component (B) such as glucose; crude drugs; oils and fats; alcohols; polyhydric alcohols; surfactants; fragrances; pigments; moisturizers; You may add suitably in the range.

  In the bath agent composition of the present invention, the component (A) zinc compound is added to the component (B) an anionic polysaccharide having a sulfate group or a carboxyl group, and if necessary, the above optional components such as the component (C), and the conventional method is used. Prepared by mixing. Examples of the dosage form include powder, granules, tablets and the like. In addition, excipients, lubricants and the like that are usually used in these dosage forms can be added.

  EXAMPLES Hereinafter, although this invention is demonstrated concretely based on an Example, this invention is not limited to these Examples.

[Reference Test 1]
<Evaluation method of convergence effect>
The astringent action was evaluated by partially modifying the method described in J. Agric. Food Chem., 1998, 46, 2590-2595.

  Specifically, each sample shown in FIGS. 1 and 2 was added to a 1% bovine serum albumin (BSA) solution, mixed, incubated at 38 ° C. for 20 minutes, and then absorbance (OD550: SUNRISE RAINBOW THERMO manufactured by TECAN Austria GmbH). The turbidity at the time of measurement using an optical path length of 6 mm, a wavelength of 550 nm, and a 96-well plate was measured, and the numerical value of the absorbance (OD550) was evaluated as an index of the convergence effect (smooth feeling). The results are shown in FIGS.

This evaluation method is based on the fact that the degree of convergence can be evaluated using protein aggregation (turbidity) as an index as described below.
1) When a zinc compound is mixed with a protein (here, BSA: bovine serum albumin), the protein and the zinc compound bind to each other, thereby causing an agglutination reaction, and the protein solution becomes cloudy.
2) Since the degree of agglomeration is high when the astringent action is high, the turbidity of the solution is also high.
3) On the other hand, if the astringent action is low, the degree of agglomeration is low, and the turbidity is also low.

  From FIG. 1, it can be seen that carboxymethylcellulose, carrageenan, and sodium alginate alone do not show an astringent action (a refreshing feeling). However, it can be seen that the combination of zinc sulfocolate with these carboxymethylcellulose, carrageenan and sodium alginate dramatically enhances the astringent action (smooth feeling) of zinc sulfocolate. On the other hand, it can be seen that even when sodium carbonate, fumaric acid, hydroxyethyl cellulose, and pullulan are combined with zinc sulfocolate, the astringent action (smooth feeling) of zinc sulfocolate is not enhanced.

  In addition, it can be seen from FIG. 2 that, when carboxymethyl cellulose or carrageenan is combined with zinc gluconate, the astringent action (smooth feeling) is remarkably enhanced. On the other hand, it can be seen that even when carboxymethylcellulose or carrageenan is combined with alum, which is an aluminum compound, the astringent action (feeling of refreshing) is not enhanced.

[Examples 1-6, Comparative Examples 1-3]
Using a bath preparation prepared by mixing based on the prescriptions shown in Tables 1-2 (one use amount of 50 g), dissolve the bath preparation in 150 to 200 L of hot water (38 to 40 ° C.) for five professional panelists. Thereafter, bathing was performed, and the moist feeling of the skin during bathing and the refreshing feeling after bathing were evaluated according to the following criteria, and the average values of the scores were calculated and compared. The results are shown in Tables 1-2.

"Moist skin feeling during bathing"
5: Very moist 4: Moist 3: Moist 2: 2: Neither 1: Moist

<Skin refreshing after bathing (0-5 minutes)>
5: Very good refreshing.
4: Good refreshing 3: Slightly refreshing 2: Not refreshing 1: Sticky

  As is clear from Tables 1 and 2, by combining specific amounts of zinc compounds with anionic polysaccharides having sulfate groups or carboxyl groups such as carboxymethyl cellulose and carrageenan, the refreshing feeling after bathing, the skin feeling during bathing It can be seen that the moist feeling is fully recognized. Moreover, the result of the said evaluation showed a positive correlation with the result in the reference test 1.

[Examples 7 to 8]
Each bath agent was obtained according to the formulation shown in Tables 3-4. When these bathing agents were dissolved in 150 to 200 L of hot water (38 to 40 ° C.) and bathed, the moist feeling of the skin during bathing and the refreshing feeling after bathing were sufficiently recognized.

Claims (5)

The following components (A) and (B):
(A) A zinc compound of an organic acid (B) An anionic polysaccharide having a sulfate group or a carboxyl group is contained, and the content of the component (B) with respect to the content of the component (A) is 0.00 by mass ratio. The bath agent composition which is 10-0.98.   The bath composition according to claim 1, wherein the component (B) anionic polysaccharide having a sulfate group or a carboxyl group is at least one selected from the group consisting of carboxymethylcellulose, carrageenan and sodium alginate.   The bath agent composition according to claim 1 or 2, wherein the content of the component (B) anionic polysaccharide having a sulfate group or a carboxyl group is 0.01 to 3.0% by mass. Content of the said component (A) zinc compound is 0.05-3.0 mass%, The bath agent composition of any one of Claims 1-3 . Furthermore, the bath agent composition of any one of Claims 1-4 containing a component (C) carbon dioxide generator.