JP6730780B2 - Bath agent composition - Google Patents

Description

The present invention relates to a bath agent composition that can provide a good cooling sensation.

Conventionally, bath agents containing a cooling sensation agent such as menthol have been known to provide a pleasant cooling sensation and refreshing sensation when taking a bath. For example, Patent Document 1 discloses a liquid cooling bath agent in which a lower alcohol, polyoxyethylene polyoxypropylene glycol, or the like is used in combination with such a cooling sensation agent, and Patent Document 2 discloses a glycerin condensate of menthol. Discloses a bathing agent in which a plant extract, an electrolyte, a low-foaming surfactant and the like are used in combination.

On the other hand, when an organic acid and a carbonate are blended with a bath agent, carbon dioxide gas generated in the bath water promotes blood circulation, and thus is used for various bath agents mainly for the purpose of enhancing a feeling of warmth. For example, Patent Document 3 discloses a bathing agent in which a carbonic acid gas generating product such as an organic acid or a carbonate is combined with an oily component and a fragrance.

On the other hand, in Patent Document 4, in order to maintain a refreshing feeling after bathing, a granulated product obtained by granulating a cooling sensation agent without containing a carbonate or an organic acid, and carbonic acid as a component other than the granulated product. A bath agent composition containing a salt and an organic acid is disclosed.

JP 2002-308757 A JP-A-2002-37725 JP, 2007-223936, A JP 2001-192330 A

Since the cooling sensation agents such as menthol used in the above Patent Documents 1 and 2 are generally high in volatility and sublimability, when organic acids and carbonates are further coexisted in the bath agent, carbonic acid generated in the bath water is generated. The gas promotes volatilization of the cooling sensation agent and cannot sufficiently activate the cold stimulus receptor, which makes it difficult to provide a good cooling sensation.

Under such circumstances, a technique of using an organic acid and a carbonate without using a cooling sensation agent exclusively for enhancing a warm feeling as in Patent Document 3 described above, or a cool feeling as in Patent Document 4 described above. Only known is the technique of encapsulating the agent in the granulated product and using the organic acid and carbonate as components other than the granulated product.In the coexistence of these organic acid and carbonate, the effect of the cooling sensation agent is fully exerted. A possible bath agent has not yet been realized.

Therefore, the present invention relates to a bath agent composition capable of producing a good cooling sensation while generating carbon dioxide gas in bath water.

Therefore, the inventors of the present invention have made various studies and found that in using an organic acid and a carbonate together with 1-menthol or a derivative thereof (hereinafter also referred to as 1-menthol) as a cooling sensation, a nonionic surfactant and an oil agent. It has been found that by using together, a bath agent composition can be obtained in which carbon dioxide gas is generated in the bath water and a cooling sensation effect is sufficiently exhibited.

That is, the present invention provides the following components (A) to (E):
The present invention relates to a bath agent composition containing (A) an organic acid, (B) a carbonate, (C) a nonionic surfactant, (D) an oil agent, and (E) 1-menthol or a derivative thereof.

According to the bath agent composition of the present invention, it is possible to sufficiently enhance the cooling sensation brought about by 1-menthol and the like while generating carbon dioxide gas when it is added to bath water, and therefore, for example, even when taking a bath in the summer. It can be preferably used.

Hereinafter, the present invention will be described in detail.

The bath agent composition of the present invention contains an organic acid as the component (A). By containing the component (A), carbon dioxide gas can be generated in the bath water together with the component (B) described later, and a good foaming feeling can be provided. Examples of such organic acids include succinic acid, fumaric acid, malic acid, adipic acid, tartaric acid, benzoic acid, citric acid, pyrrolidonecarboxylic acid, salicylic acid, maleic acid, phthalic acid, glutaric acid, oxalic acid, and the like. These can be used alone or in combination of two or more. Among them, from the viewpoint of ensuring storage stability, one or more selected from succinic acid, fumaric acid, malic acid, adipic acid, tartaric acid, benzoic acid, citric acid, pyrrolidonecarboxylic acid, and salicylic acid are preferable, One or more selected from succinic acid, fumaric acid, malic acid, adipic acid, tartaric acid, and citric acid are more preferable, and fumaric acid is further preferable.

The content of the component (A) in the bath agent composition of the present invention is preferably 10% by mass or more, more preferably 20% by mass or more, and further preferably from the viewpoint of ensuring the amount of carbon dioxide gas generated. Is 30% by mass or more, preferably 80% by mass or less, more preferably 70% by mass or less, and further preferably 60% by mass or less. Further, the content of the component (A) in the bath agent composition of the present invention is preferably 10 to 80% by mass, more preferably 20 to 70% by mass, and further preferably 30 to 60% by mass. Is.

The bath agent composition of the present invention contains a carbonate as the component (B). Examples of the carbonate include sodium carbonate, sodium hydrogen carbonate, magnesium carbonate, calcium carbonate, potassium carbonate and the like. These carbonates can be used alone or in combination of two or more. Of these, one or more selected from sodium carbonate and sodium hydrogen carbonate are preferable from the viewpoint of imparting better foaming properties, and sodium carbonate and sodium hydrogen carbonate are used in combination from the viewpoint of storage stability. Is more preferable. When sodium carbonate and sodium hydrogen carbonate are used in combination, the mass ratio (sodium carbonate/sodium hydrogen carbonate) in the bath agent composition of the present invention is preferably 0.2 to 50, and is 0.3. -30 is more preferable, 0.4-3 is more preferable, and 0.6-1.5 is particularly preferable.

The content of the component (B) is preferably 10% by mass or more in the bath agent composition of the present invention from the viewpoint of securing a carbon dioxide gas generation amount together with the component (A) and providing a good foaming feeling. , More preferably 15% by mass or more, further preferably 20% by mass or more, preferably 70% by mass or less, more preferably 60% by mass or less, still more preferably 50% by mass or less. Further, the content of the component (B) in the bath agent composition of the present invention is preferably 10 to 70% by mass, more preferably 15 to 60% by mass, and further preferably 20 to 50% by mass. Is.

The bath agent composition of the present invention contains a nonionic surfactant as the component (C). By containing the component (C), in combination with the component (D) described below, under the environment where carbon dioxide gas is generated in the bath water, the volatilization of 1-menthol and the like of the component (E) described below is effectively suppressed. In addition, it also contributes to the promotion of the penetration of the component (E) into the skin, thereby enhancing the cooling sensation.

Examples of the component (C) include sorbitan mono-oleate, sorbitan tri-oleate, and other sorbitan fatty acid esters; polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan trioleate, and other polyoxyethylene sorbitan fatty acid esters; mono- Polyoxyethylene sorbitol fatty acid esters such as polyoxyethylene sorbitol, di-, tri- or tetra-oleic acid; polyoxyethylene alkyl ethers such as polyoxyethylene oleyl ether; polyethylene glycol fatty acid esters such as polyethylene glycol monooleate; olein Fatty acid salts such as potassium oleate and sodium oleate; acyl amino acid salts such as potassium oleoyl glutamate and sodium oleoyl glutamate; and one or more selected from polyoxyethylene hydrogenated castor oil.

Among them, the component (C) is a sorbitan skeleton from the viewpoint of effectively suppressing the volatilization of 1-menthol and the like of the component (E), enhancing the cooling sensation, and enhancing the dispersibility of each component in the composition. Alternatively, a fatty acid ester having a sorbitol skeleton is preferable. Further, a fatty acid ester having an oleyl group or an oleoyl group as a fatty acid residue is preferable. Further, a fatty acid ester having a polyoxyethylene group added thereto is preferable. Among them, a fatty acid ester having a sorbitan skeleton or a sorbitol skeleton and having an oleyl group or an oleoyl group to which a polyoxyethylene group is added is more preferable.

From the viewpoint of effectively enhancing the cooling sensation combined with the component (D), the HLB value of the entire component (C) is preferably 5 to 20, and more preferably 9 to 16. Further, when the component (C) is a fatty acid ester formed by adding a polyoxyethylene group, the average number of moles of addition of the polyoxyethylene group is preferably 10 to 80, more preferably 20 to 60. , And more preferably 40 to 60.
HLB is a value determined by the Griffin's formula, and when one nonionic surfactant is used as the component (C), it is the HLB value of the nonionic surfactant alone. When an activator is used in combination, the HLB value of the whole component (C) is obtained by summing each HLB value obtained by the Griffin equation and multiplying the mass-based content ratio of each component.

As the component (C), more specifically, for example, polyoxyethylene sorbitan tetraoleate, polyoxyethylene sorbitan trioleate, polyoxyethylene sorbitan monooleate, polyoxyethylene sorbitan monolaurate, polyoxyethylene coconut One or more selected from oil fatty acid sorbitan, coconut oil fatty acid sorbitan, and polyoxyethylene oleyl ether are preferable, and tetraoleic acid polyoxyethylene sorbit, trioleic acid polyoxyethylene sorbitan, and monooleic acid polyoxyethylene. More preferably, one or more selected from sorbitan.

The content of the component (C), in combination with the component (D), promotes the penetration into the skin while suppressing the volatilization of the component (E), and enhances the cooling sensation. Further, it is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, and further preferably 0.1% by mass or more. In addition, the content of the component (C) is preferably 2% by mass or less, more preferably 1% by mass or less, in the bath agent composition of the present invention, from the viewpoint of ensuring storage stability. It is preferably 0.5% by mass or less. The content of the component (C) in the bath agent composition of the present invention is preferably 0.01 to 2% by mass, more preferably 0.05 to 1% by mass, and further preferably 0. 0.1 to 0.5% by mass.

The bath agent composition of the present invention contains an oil agent as the component (D). The component (D) is an oily component other than the nonionic surfactant or other surfactant of the component (C), l-menthol or the like of the component (E), or other fragrance, and contains the component (D). By doing so, in combination with the component (C), in an environment where carbon dioxide gas is generated in the bath water, volatilization of 1-menthol and the like of the component (E) described later is effectively suppressed and the cooling feeling is enhanced. , Its sustainability can be effectively increased.

Examples of the component (D) include cetyl octanoate, cetyl isooctanoate, myristyl lactate, cetyl lactate, isopropyl myristate, myristyl myristate, isocetyl myristate, octyldodecyl myristate, isopropyl palmitate, isostearyl palmitate, Isopropyl adipate, butyl stearate, isocetyl stearate, isotridecyl isononanoate, decyl oleate, cholesterol isostearate, butyl laurate, isoamyl laurate, methyl myristate, ethyl myristate, ethyl stearate, isononyl isononanoate, linoleic acid Fatty acid ester oils such as isopropyl, isostearyl isostearate, isopropyl isostearate, methyl oleate, ethyl oleate, oleyl oleate, ethyl 2-ethylhexanoate; tri(caprylic acid/capric acid having a fatty acid ester structure in the molecule ) Glycerin, triglyceryl caprylate, myristic acid glyceride, glyceride oil such as 2-ethylhexanoic acid glyceride; soybean oil, nuka oil, jojoba oil, avocado oil, almond oil, olive oil, cocoa butter, sesame oil, persic oil, castor oil , Natural oils and fats such as coconut oil and mink oil, or oils and fats obtained by hydrogenating these natural oils and fats; higher fatty acids such as oleic acid, linoleic acid, linolenic acid, lanolinic acid and isostearic acid; ethanol, isopropyl alcohol, glycerin, Alcohol such as lauryl alcohol, cetyl alcohol, oleyl alcohol and 2-hexyldecanol; polyether such as polyethylene glycol; liquid paraffin, squalane, squalene, hydrocarbon oil such as dioctylcyclohexane and blistane; silicone oil such as cyclopentasiloxane 1 type or 2 or more types. Among these, isopropyl myristate (ClogP = 7.37), octyldodecyl myristate (ClogP = 16.45), isopropyl palmitate (ClogP = 8.43), butyl stearate (ClogP = 10.23), Isotridecyl isononanoate (ClogP=9.97), isostearyl isostearate (ClogP=17.38), methyl oleate (ClogP=8.16), triglyceryl caprylate (ClogP=9.20), 2-ethylhexane Ethyl acid (ClogP = 11.07), lauryl alcohol (ClogP = 5.06), oleyl alcohol (ClogP = 7.75), cetyl alcohol (ClogP = 7.17), squalane (ClogP = 14.63), and One or more selected from cyclopentasiloxane (ClogP=8.03) is preferable.

The component (D) has a ClogP value of 5 or more for the entire component (D), from the viewpoint of effectively enhancing the cooling sensation while effectively enhancing the cooling sensation combined with the component (C). It is preferably, more preferably 8 or more, still more preferably 12 or more, and preferably 18 or less, more preferably 16 or less. Further, the ClogP value of the entire component (D) is preferably 5 to 18, more preferably 8 to 18, and further preferably 12 to 16.

Here, the “logP value” is the logarithmic value of the partition coefficient of 1-octanol/water of the compound, and in the partition equilibrium when the compound is dissolved as a solute in a solvent system of 1-octanol and water. , Means the ratio of the equilibrium concentrations of solutes in each solvent and is generally expressed in the form of a logarithm “logP” to the base 10. Further, the logP value of the component (D) is the logP value of the oil agent alone when one oil agent is used alone, and the logP value of the entire component (D) when two or more oil agents are used in combination. Is determined by the sum of the logP values multiplied by the mass-based content ratio of each component. That is, the logP value is an index of lipophilicity (hydrophobicity) of the component (D) as a whole, and the higher the value, the more hydrophobic, and the smaller the value, the more hydrophilic.

Regarding the logP value, for example, the logP value published in a database that can be obtained from Daylight Chemical Information Systems, Inc. (Daylight CIS) can be referred to as an actual measured value, but the program "CLOGP" (Daylight CIS), etc. Can be calculated by

In the program "CLOGP", the value of "calculated logP (ClogP)" calculated by the Hansch and Leo fragment approach is output together with the actual measured value of logP, if any. The fragment approach is based on the chemical structure of the compound and takes into account the number of atoms and the type of chemical bond (A. Leo, Comprehensive Medicinal Chemistry, Vol. 4, C. Hansch, PG Sammens, JB Taylor and CA Ramsden. Eds., P.295, Pergamon Press, 1990). This ClogP value is the most general and reliable estimation value of the logP value at present, and in the present invention, the ClogP value means this, and when two or more kinds of oil agents are used in combination as the component (D). Is calculated by the same method as the logP value.

The content of the component (D) in the bath agent composition of the present invention is, together with the component (C), from the viewpoint of promoting penetration into the skin while suppressing volatilization of the component (E) and enhancing a cooling sensation. Further, it is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, and further preferably 1% by mass or more. Further, the content of the component (C) is preferably 10% by mass or less, more preferably 5% by mass or less, in the bath agent composition of the present invention from the viewpoint of ensuring storage stability. It is preferably 3% by mass or less. The content of the component (C) in the bath agent composition of the present invention is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass, and further preferably 1 Is 3% by mass.

Among these components (D), from the viewpoint of effectively suppressing the volatilization of 1-menthol and the like of the component (E) to enhance the cooling sensation, and from the viewpoint of enhancing the sustainability of such cooling sensation, a fatty acid ester oil, and One or more selected from higher fatty acids are preferable, one or more selected from fatty acid ester oils is more preferable, and two or more fatty acid ester oils are more preferably used.

From the viewpoint of effectively suppressing volatilization of the component (E) by carbon dioxide gas generated in the bath water, the mass ratio ((C)/(D)) of the contents of the component (C) and the component (D) is It is preferably 0.005 or more, more preferably 0.05 or more, and further preferably 0.1 or more. Further, the mass ratio ((C)/(D)) of the contents of the component (C) and the component (D) is preferably 50 or less from the viewpoint of effectively enhancing and maintaining the cooling sensation, It is more preferably 5 or less, still more preferably 1 or less. The mass ratio ((C)/(D)) of the contents of the component (C) and the component (D) is preferably 0.005 to 50, more preferably 0.05 to 5, and It is preferably 0.1 to 1.

The bath agent composition of the present invention contains 1-menthol or a derivative thereof as the component (E). By containing the component (E), a good cooling sensation can be imparted. Examples of the 1-menthol derivative include menthyl lactate, menthyl acetate, and menthone. The 1-menthol or its derivative of the component (E) can be used alone or in combination of two or more, and among them, 1-menthol is preferable.

The content of the component (E) in the bath agent composition of the present invention is preferably 0.01% by mass or more, and more preferably 0. 0, from the viewpoint of providing a good cooling sensation and maintaining it. It is at least 05 mass%, more preferably at least 0.1 mass%. Further, the content of the component (E) is preferably 10% by mass or less, more preferably 5% by mass or less, and further preferably 1% by mass or less, from the viewpoint of suppressing an excessive cooling sensation. The content of the component (E) in the bath agent composition of the present invention is preferably 0.01 to 10% by mass, more preferably 0.05 to 5% by mass, and further preferably 0. 0.1 to 1% by mass.

The mass ratio ((C)/(E)) of the contents of the component (C) and the component (E) is preferably 0.01 or more, and more preferably 0, from the viewpoint of enhancing the cooling sensation and sustainability. 0.1 or more, more preferably 0.2 or more. The mass ratio ((C)/(E)) of the contents of the component (C) and the component (E) is preferably 5 from the viewpoint of suppressing the volatilization of the component (E) while ensuring storage stability. Or less, more preferably 3 or less, and further preferably 1.5 or less. Then, the mass ratio ((C)/(E)) of the contents of the component (C) and the component (E) is preferably 0.01 to 5, more preferably 0.1 to 3, and It is preferably 0.2 to 1.5.

The mass ratio ((D)/(E)) of the contents of the component (D) and the component (E) is preferably 0.01 or more from the viewpoint of enhancing the cooling sensation while ensuring storage stability. It is more preferably 0.2 or more, still more preferably 1 or more. Further, the mass ratio ((D)/(E)) of the contents of the component (D) and the component (E) enhances the penetration of the component (E) into the skin and is preferable from the viewpoint of the sustainability of the cooling sensation. Is 20 or less, more preferably 10 or less, and further preferably 5 or less. The mass ratio ((D)/(E)) of the contents of the component (D) and the component (E) is preferably 0.01 to 20, more preferably 0.2 to 10, and It is preferably 1 to 5.

The mass ratio ([(C)+(D)]/(E)) of the total content of the component (C) and the component (D) and the content of the component (E) is cool while ensuring storage stability. From the viewpoint of enhancing the feeling, it is preferably 0.1 or more, more preferably 1 or more, and further preferably 2 or more. Further, the mass ratio ([(C)+(D)]/(E)) of the total content of the component (C) and the component (D) and the content of the component (E) is the skin of the component (E). From the viewpoint of enhancing the penetration into the skin and maintaining the cooling sensation, it is preferably 50 or less, more preferably 15 or less, and further preferably 5 or less. The mass ratio ([(C)+(D)]/(E)) of the total content of the component (C) and the component (D) and the content of the component (E) is preferably 0.1. It is 50, more preferably 1 to 15, and further preferably 2 to 5.

The bath agent composition of the present invention may appropriately contain, as a component other than the above components, a component usually used in a bath agent. Examples of such components include potassium chloride, sodium chloride, sodium sulfate, magnesium sulfate, potassium nitrate, sodium nitrate, sodium polyphosphate, ammonium chloride, iron sulfate, sodium phosphate, sodium thiosulfate, and the like other than the above component (B). Inorganic salts; water-soluble polymers such as polypropylene glycol and polyoxyethylene phenol ether; excipients such as calcium silicate and glucose; medicinal ingredients such as crude drugs; pigments; fragrances other than the above component (E) ..

The bath agent composition of the present invention can be produced by a conventional method such as a compression molding method using a press tableting machine or a briquette machine, or a compression granulation method such as extrusion granulation, and the form thereof is a briquette tablet, It may be tablets, powders, granules, granules or the like. Alternatively, a part of the components may be granulated or molded in advance and mixed with the other components, and then molded. Among them, the tablet form is preferable from the viewpoint of more effectively enhancing and maintaining the cooling sensation and obtaining a good feeling during use.

Hereinafter, the present invention will be specifically described based on Examples. Unless otherwise specified in the table, the content of each component is% by mass.

[Examples 1-26, Comparative Examples 1-3]
According to the formulations shown in Tables 1 and 2, after mixing the respective components, they were placed in a tableting cell and the molding pressure was set to 10 MPa to obtain each bath preparation.
Next, each evaluation was performed using the obtained bath agent according to the methods described below. The results are shown in Tables 1-2.

《Cool feeling during bathing》
After pouring 40 g of each bathing agent into 150 L of bath water (40° C.), 5 expert panelists bathed each for 10 minutes. Then, the cooling sensation during bathing was evaluated according to the following criteria, and the average value was rounded off to obtain an evaluation value.
5: Feeling cool sensation 4: Feeling cool sensation a little 3: Feeling cool sensation 2: Feeling cool sensation a little 1: Not feeling cool

《Cool feeling after bathing》
After the above bathing, the towel was dried and the cool feeling after 5 minutes was evaluated according to the same criteria as the evaluation of the cool feeling during the above bath, and the average value was rounded off to obtain an evaluation value.

Claims (7)

The following components (A)-(E):
(A) Organic acid (B) Carbonate (C) Fatty acid ester having sorbitan skeleton or sorbitol skeleton, and nonionic surfactant having oleyl group or oleoyl group formed by addition of polyoxyethylene group as fatty acid residue Agent 0.05 mass% or more and 2 mass% or less (D) Oil agent having a ClogP value of 8 or more and 18 or less 0.01 mass% or more and 10 mass% or less (E) Contains 1-menthol, and as a component (C) The mass ratio of the contents of the component (E) ((C)/(E)) is 0.1 or more and 5 or less, and the mass ratio of the contents of the components (D) and (E) ((D)/( E)) is a bath agent composition of 0.2 or more and 10 or less. The bath agent composition according to claim 1, wherein the content of the component (A) is 10% by mass or more and 80% by mass or less. Content of a component (B) is 10 mass% or more and 70 mass% or less, The bath agent composition of Claim 1 or 2. The bath agent composition according to any one of claims 1 to 3, wherein the content of the component (E) is 0.01% by mass or more and 10% by mass or less. Component (D) is, octyldodecyl myristate, isopropyl palmitate, butyl stearate, isotridecyl isononanoate, isostearyl isostearate, methyl oleate, triglyceryl caprylate, 2-ethylhexanoic acid ethyl, squalane, and cyclopentasiloxane The bath agent composition according to any one of claims 1 to 4, which is one kind or two or more kinds selected from the following. The bath agent composition according to any one of claims 1 to 5, wherein a mass ratio ((C)/(D)) of the contents of the component (C) and the component (D) is 0.005 or more and 50 or less. Stuff. The mass ratio ([(C)+(D)]/(E)) of the total content of the component (C) and the component (D) and the content of the component (E) is 0.1 or more and 50 or less. The bath agent composition according to any one of claims 1 to 6.