Liquid bath salts

Abstract

To provide a liquid bath agent that gives a high warm-bath effect and has high storage stability even with a high content of a liquid oil agent.SOLUTION: A liquid bath agent contains component (A): a liquid oil agent, component (B): a nonionic surfactant, component (C): water, component (D): chamomile extract, and component (E): phenoxy ethanol, with the content of the component (A) of 60 mass% or more and 90 mass% or less, the content of the component (E) of 0.60 mass% or more, and the mass ratio of the component (E) to the component (D) [(E) / (D)] of 18 or more.SELECTED DRAWING: None

Description

[Technical field]

[0001] The present invention relates to a liquid bath additive. [Background technology]

[0002] Solid carbon dioxide bath additives containing carbonate and organic acid are known to produce a warming sensation and promote blood circulation by generating carbon dioxide in bath water.

[0003] With regard to liquid bath additives, research is being conducted to improve the bathing effect to the same level as that of carbon dioxide bath additives. One of the known means for improving the effect of a hot bath is to use a specific plant extract such as chamomile extract, and liquid bath additives containing chamomile extract as the plant extract are also known. For example, Patent Document 1 discloses that a bath oil containing rice germ oil and one or more selected from chamomile extract, licorice extract, and extract components has excellent moisturizing properties and is effective against skin disorders such as rough skin and eczema. Patent Document 2 discloses that a bath additive composition containing an extract extracted from oat seeds using water and / or a water-soluble organic solvent, and a chamomile extract, can relieve skin itching, provide a moist feeling to the skin, and also have an excellent body warming effect. Patent Document 3 discloses that a bath agent composition containing a herbal extract such as chamomile extract, a vegetable oil, and a specific fragrance component has excellent fragrance odor and long-lasting odor. Patent Document 4 also discloses that a bath additive containing an extract of Cnidium officinalis (Apiaceae) and / or an extract of Chamomile (Asteraceae) and an extract of Mentha japonica (Lamiaceae) and / or an extract of Rosemary (Lamiaceae) has the properties of a milky, transparent solution when added to a bathtub, and has the effect of refreshing the mind and body.

[0004] Phenoxyethanol may be contained in liquid bath additives for the purpose of preservative action, etc. For example, the examples of Patent Documents 3 and 4 disclose liquid bath additives containing chamomile extract and phenoxyethanol. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 7-133220 [Patent Document 2] Japanese Patent Application Publication No. 9-208454 [Patent Document 3] JP 2003-48824 A [Patent Document 4] JP 2005-29536 A Summary of the Invention [Problem to be solved by the invention]

[0006] Patent Document 2 also discloses that bath additives containing chamomile extracts have a warm bathing effect. However, the techniques disclosed in Patent Documents 1 to 4 leave room for improvement in terms of obtaining a high warm bathing effect equivalent to that of carbon dioxide bath additives. In addition, it has been found that liquid bath additives with a high oil content tend to have a lower storage stability when water-soluble chamomile extracts are added.

[0007] The present invention relates to a liquid bath additive that provides a high warm bath effect and has good storage stability even when it contains a large amount of liquid oil. [Means for solving the problem]

[0008] The inventors have discovered that the above problem can be solved by providing a liquid bath additive containing a predetermined amount of liquid oil, a nonionic surfactant, water, chamomile extract, and a predetermined amount of phenoxyethanol, wherein the chamomile extract and phenoxyethanol are in a predetermined mass ratio. That is, the present invention provides: Component (A): Liquid oil, Component (B): nonionic surfactant, Ingredient (C): water, Ingredient (D): chamomile extract, and Contains ingredient (E): phenoxyethanol, The content of component (A) is 60% by mass or more and 90% by mass or less, The content of component (E) is 0.60% by mass or more, The present invention relates to a liquid bath additive, in which the mass ratio of component (E) to component (D) [(E) / (D)] is 18 or more. Effect of the Invention

[0009] According to the present invention, it is possible to provide a liquid bath additive which has a high warm bath effect and has good storage stability even when it contains a large amount of liquid oil. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] [Liquid bath additives] The liquid bath agent of the present invention (hereinafter, also simply referred to as "the bath agent of the present invention") is Component (A): Liquid oil, Component (B): nonionic surfactant, Ingredient (C): water, Ingredient (D): chamomile extract, and Contains ingredient (E): phenoxyethanol, The content of component (A) is 60% by mass or more and 90% by mass or less, The content of component (E) is 0.60% by mass or more, The mass ratio of component (E) to component (D) [(E) / (D)] is 18 or more. By using the bath additive of the present invention in the above-mentioned manner, a high warm bath effect can be obtained, and even if the content of oily components is high, the liquid bath additive can have good storage stability.

[0011] The bath additive of the present invention is a liquid bath additive containing 60% to 90% by mass of a liquid oil as component (A), and is preferably a self-emulsifying liquid bath additive that can make the bath water cloudy by self-emulsification when added to bath water. By containing a nonionic surfactant as component (B), separation and clouding of the liquid bath additive are suppressed, and the self-emulsifying property of the bath additive is enhanced, and the effect of making the bath water cloudy after being added to the bath water can be imparted. Chamomile extract, which is component (D), is a water-soluble component. By adding component (D) to the bath agent of the present invention, it is possible to impart a warm bath effect. However, although the warm bath effect can be enhanced by adding a large amount of component (D), liquid bath agents that contain a large amount of liquid oil tend to have a low storage stability and to separate and become cloudy. The present invention has discovered that by incorporating a predetermined amount or more of phenoxyethanol as component (E) and by setting the mass ratio of component (E) to component (D) [(E) / (D)] to a predetermined value or more, the sweating effect during bathing is significantly improved, and it has been found that this makes it possible to achieve both a high hot bath effect and improved storage stability. In this application, "good storage stability" means that the liquid bath additive does not separate or become cloudy over time.

[0012] <Component (A): Liquid oil> The bath additive of the present invention contains a liquid oil as component (A). In the present invention, "liquid" means that the liquid is in a liquid state at 25°C. Component (A) is not particularly limited as long as it is a liquid oil other than component (E) that is used in ordinary bath additives, and examples thereof include hydrocarbon oils, silicone oils, ester oils, higher fatty acids, higher alcohols, fluorine-based oils, etc. that are liquid at 25° C. These may be naturally derived, such as vegetable oils and animal oils.

[0013] Examples of the hydrocarbon oil include linear or branched hydrocarbon oils that are liquid at 25° C., such as liquid paraffin, light liquid isoparaffin, squalane, and squalene. Among these, liquid paraffin is preferred from the viewpoint of improving emulsifiability after pouring into bath water.

[0014] Examples of silicone oils include dimethylpolysiloxane, dimethylcyclopolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, higher alcohol-modified silicone oil, etc. that are liquid at 25° C. Among these, dimethylpolysiloxane is preferred from the viewpoints of improving emulsifiability after pouring into bath water and improving the feel during bathing. The viscosity of the silicone oil is preferably 1 mm kinematic viscosity at 25°C from the viewpoint of suppressing excessive volatilization. 2 / s or more, preferably 2 mm 2 / s or more, more preferably 5 mm 2 / s or more, and from the viewpoint of improving the emulsification property after the bath water is added, it is preferably 5,000 mm 2 / s or less, preferably 3,000 mm 2 / s or less, and more preferably 1,000 mm 2 / s or less, and even more preferably 400 mm 2 / s or less, and even more preferably 100 mm 2 The kinematic viscosity can be measured, for example, by using an Ubbelohde viscometer.

[0015] Examples of ester oils include fatty acid esters composed of fatty acids and monohydric or dihydric alcohols, glycerin fatty acid esters (glycerides) composed of fatty acids and glycerin, etc. The number of carbon atoms in the fatty acid is preferably 8 to 24, more preferably 8 to 20, and even more preferably 8 to 18, from the viewpoint of improving emulsification after pouring into bath water and improving moisturizing properties. Specific examples of ester oils used as component (A) 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, and myristate. Fatty acid esters such as methyl, ethyl myristate, ethyl stearate, isononyl isononanoate, isopropyl linoleate, isostearyl isostearate, isopropyl isostearate, methyl oleate, ethyl oleate, oleyl oleate, and ethyl 2-ethylhexanoate; glycerin fatty acid esters (glycerides) such as caprylic / capric triglyceride (INCI name "caprylic / capric triglyceride"), myristate triglyceride, and 2-ethylhexanoate triglyceride; etc.

[0016] Examples of higher fatty acids include fatty acids having 8 to 24 carbon atoms, such as oleic acid, linoleic acid, linolenic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, lanolic acid, and isostearic acid. Examples of higher alcohols include alcohols having 8 to 24 carbon atoms, more preferably 8 to 18 carbon atoms, such as lauryl alcohol, oleyl alcohol, cetyl alcohol, stearyl alcohol, isostearyl alcohol, 2-hexyldecanol, 2-octyldodecanol, and cholesterol.

[0017] Examples of fluorine-based oils include fluoropolyethers and perfluoroalkyl ether silicones that are liquid at 25°C.

[0018] Examples of vegetable oils include soybean oil, rice germ oil, rice bran oil, jojoba oil, avocado oil, almond oil, olive oil, cacao butter, sesame oil, persic oil, castor oil, coconut oil, safflower oil, eucalyptus oil, rapeseed oil, and oils obtained by hydrogenating these oils that are liquid at 25°C. Examples of animal oils include mink oil and liquid lanolin.

[0019] The component (A) can be used alone or in combination of two or more. Among the above, from the viewpoints of improving the hot bath effect, improving storage stability, improving emulsifiability after adding bath water, and improving the feel during bathing, component (A) is preferably one or more oils selected from the group consisting of hydrocarbon oils, silicone oils, and ester oils, more preferably one or more oils selected from the group consisting of hydrocarbon oils and ester oils, and even more preferably contains a hydrocarbon oil. From the viewpoints of improving the hot bath effect, improving storage stability, improving emulsification properties after adding bath water, and improving the feel during bathing, it is more preferable that component (A) contains a hydrocarbon oil and an ester oil, and it is even more preferable that it contains liquid paraffin and one or more ester oils selected from the group consisting of isopropyl myristate, isostearyl isostearate, and caprylic / capric triglyceride. The total content of the hydrocarbon oil and ester oil in component (A) is, from the viewpoints of improving the hot bath effect, improving storage stability, improving emulsifiability after adding bath water, and improving the feel during bathing, preferably 50 mass% or more, more preferably 70 mass% or more, even more preferably 80 mass% or more, and even more preferably 90 mass% or more, and may be 100 mass%. The content of component (A) in the bath additive is 60% by mass or more, preferably 65% ​​by mass or more, more preferably 70% by mass or more, and even more preferably 75% by mass or more, from the viewpoint of improving emulsification after pouring into bath water and improving storage stability. Also, from the viewpoint of containing components (D) and (E) and improving the warm bath effect, the content is 90% by mass or less, preferably 85% by mass or less.

[0020] <Component (B): Nonionic surfactant> The bath additive of the present invention contains a nonionic surfactant as component (B). Specific examples of component (B) include polyoxyethylene alkyl ethers, polyoxyethylene alkenyl ethers, sucrose fatty acid esters, polyoxyethylene fatty acid esters, polyglyceryl alkyl ethers, fatty acid polyglyceryls, alkyl glucosides, polyoxyethylene alkylamines, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbit fatty acid esters, and polyoxyethylene hydrogenated castor oil, and one or more of these can be used.

[0021] Of the nonionic surfactants, the alkyl groups in the polyoxyethylene alkyl ethers, polyglyceryl alkyl ethers, alkyl glucosides, and polyoxyethylene alkylamines, the alkenyl groups in the polyoxyethylene alkenyl ethers, and the fatty acids in the sucrose fatty acid esters, polyoxyethylene fatty acid esters, fatty acid polyglyceryls, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, and polyoxyethylene fatty acid esters preferably have 8 or more and 22 or less carbon atoms, more preferably 10 or more and 22 or less carbon atoms, even more preferably 12 or more and 20 or less carbon atoms, and still more preferably 14 or more and 20 or less carbon atoms, from the viewpoint of improving storage stability and improving emulsifiability after addition to bath water.

[0022] Among the nonionic surfactants, the average number of moles of ethylene oxide added (hereinafter referred to as "average number of moles of EO added") in polyoxyethylene alkyl ethers, polyoxyethylene alkenyl ethers, polyoxyethylene fatty acid esters, polyoxyethylene alkylamines, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbit fatty acid esters, and polyoxyethylene hydrogenated castor oil is, from the viewpoint of improving storage stability and emulsifiability after pouring into bath water, preferably 2 or more, more preferably 3 or more, even more preferably 5 or more, and is preferably 150 or less, more preferably 80 or less, even more preferably 60 or less. The average number of moles of EO added is a number average value.

[0023] Among the nonionic surfactants, from the viewpoint of improving storage stability and emulsifiability after pouring into bath water, component (B) is preferably one or more selected from the group consisting of polyoxyethylene alkyl ethers, polyoxyethylene alkenyl ethers, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, and polyoxyethylene sorbitan fatty acid esters, more preferably one or more selected from the group consisting of polyoxyethylene sorbitan fatty acid esters and polyoxyethylene sorbitan fatty acid esters, and even more preferably polyoxyethylene sorbitan fatty acid esters and polyoxyethylene sorbitan fatty acid esters. The carbon number of these alkyl groups, alkenyl groups, or fatty acids is preferably 8 to 22, more preferably 10 to 22, even more preferably 12 to 20, and even more preferably 14 to 20.

[0024] Specific examples of polyoxyethylene alkyl ethers include polyoxyethylene lauryl ether, polyoxyethylene myristyl ether, polyoxyethylene cetyl ether, polyoxyethylene stearyl ether, and polyoxyethylene behenyl ether. A specific example of the polyoxyethylene alkenyl ether is polyoxyethylene oleyl ether. Specific examples of sorbitan fatty acid esters include sorbitan monolaurate and sorbitan monooleate. Specific examples of polyoxyethylene sorbitan fatty acid esters include polyoxyethylene sorbitan monolaurate, polyoxyethylene sorbitan monooleate, and polyoxyethylene coconut oil fatty acid sorbitan. Specific examples of polyoxyethylene sorbitol fatty acid esters include polyoxyethylene sorbitol mono-, di-, tri-, or tetra-laurate, polyoxyethylene sorbitol mono-, di-, tri-, or tetra-oleate, and polyoxyethylene sorbitol mono-, di-, tri-, or tetra-stearate.

[0025] From the viewpoint of improving storage stability and emulsifiability after addition to bath water, component (B) preferably contains a nonionic surfactant (B1) having an HLB of less than 13.0, and more preferably further contains a nonionic surfactant (B2) having an HLB of 13.0 or more. HLB (hydrophilic-lipophilic balance) indicates the ratio of the molecular weight of the hydrophilic group to the total molecular weight of a surfactant, and is calculated by the following Griffin formula. HLB = 20 x [(molecular weight of hydrophilic group contained in surfactant) / (molecular weight of surfactant)]

[0026] From the viewpoint of improving storage stability and emulsifiability after addition of bath water, the HLB of component (B1) is less than 13.0, preferably 12.5 or less, more preferably 12 or less. It is also preferably 4 or more, more preferably 5 or more, even more preferably 8 or more, and still more preferably 9.5 or more. When component (B1) contains two or more nonionic surfactants, it is preferable to use two or more nonionic surfactants having an HLB within the above range.

[0027] From the viewpoint of improving storage stability and emulsifiability after addition of bath water, the HLB of component (B2) is 13.0 or more, preferably 13.2 or more, more preferably 13.5 or more, and is preferably 20 or less, more preferably 18 or less, and even more preferably 16 or less. When component (B2) contains two or more nonionic surfactants, it is preferable to use two or more nonionic surfactants having an HLB within the above range.

[0028] When component (B) contains a nonionic surfactant (B1) having an HLB of less than 13.0 and a nonionic surfactant (B2) having an HLB of 13.0 or more, a preferred combination is one in which component (B1) is one or more selected from the group consisting of sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, and polyoxyethylene sorbitan fatty acid esters, preferably one or more selected from the group consisting of polyoxyethylene sorbitan monooleate and polyoxyethylene sorbitan tetraoleate, more preferably polyoxyethylene sorbitan monooleate and polyoxyethylene sorbitan tetraoleate. and component (B2) is one or more selected from the group consisting of polyoxyethylene sorbitan fatty acid esters and polyoxyethylene sorbitan fatty acid esters, preferably one or more selected from the group consisting of polyoxyethylene sorbitan monooleate and polyoxyethylene sorbitan tetraoleate, more preferably polyoxyethylene sorbitan monooleate and polyoxyethylene sorbitan tetraoleate.

[0029] The content of component (B) in the bath agent is preferably 5% by mass or more, more preferably 8% by mass or more, even more preferably 10% by mass or more, and even more preferably 12% by mass or more, from the viewpoint of improving storage stability and emulsifying property after adding to bath water. Also, it is preferably 35% by mass or less, more preferably 30% by mass or less, and even more preferably 25% by mass or less.

[0030] When component (B) contains component (B1), the content of component (B1) in the bath agent is preferably 1% by mass or more, more preferably 3% by mass or more, even more preferably 5% by mass or more, and even more preferably 7% by mass or more, from the viewpoint of improving storage stability and emulsifiability after pouring into bath water. Also, it is preferably 15% by mass or less, more preferably 12% by mass or less, and even more preferably 10% by mass or less.

[0031] Furthermore, when component (B) contains components (B1) and (B2), the mass ratio of component (B1) to component (B2) [(B1) / (B2)], from the viewpoint of improving the storage stability and the emulsifiability after addition to bath water, is preferably 0.1 or more, more preferably 0.5 or more, even more preferably 1 or more, still more preferably 1.2 or more, and is preferably 10 or less, more preferably 8 or less, even more preferably 5 or less, still more preferably 4 or less, and still more preferably 3 or less. Furthermore, in the present invention, when two or more types of nonionic surfactants are used as component (B), the HLB of the entire component (B) is, from the viewpoint of improving storage stability and improving emulsifiability after pouring into bath water, preferably 6 or more, more preferably 8 or more, even more preferably 10 or more, and is preferably 16 or less, more preferably 15 or less, even more preferably 14 or less. In the present invention, the HLB of the entire component (B) means the HLB of a mixture of two or more nonionic surfactants (hereinafter also referred to as "mixed HLB"). Here, the mixed HLB is a weighted average of the HLB of each nonionic surfactant based on their mass ratio, and is calculated by the following formula: Mixed HLB=Σ(HLBx×Wx) / ΣWx (HLBx indicates the HLB of nonionic surfactant X. Wx indicates the mass (g) of nonionic surfactant X.)

[0032] <Ingredient (C): Water> The bath additive of the present invention contains water as component (C). From the viewpoint of improving storage stability, the content of component (C) in the bath additive is preferably 0.1% by mass or more, more preferably 1% by mass or more, even more preferably 2% by mass or more, still more preferably 3% by mass or more, and is preferably 10% by mass or less, more preferably 8% by mass or less, even more preferably 5% by mass or less, still more preferably 4.5% by mass or less, and still more preferably 3.5% by mass or less.

[0033] <Ingredient (D): Chamomile extract> The bath additive of the present invention contains chamomile extract as component (D). The chamomile extract used in the present invention is a water-soluble component, and is known to improve the effect of a hot bath. The chamomile extract is obtained by extracting the flowers of the chamomile (Matricaria Chamomilla Linne (Compositae) with a hydrophilic solvent such as water, ethanol, propylene glycol, 1,3-butylene glycol, or a mixture thereof, an ethanol solution containing 1% urea, or a 1,3-butylene glycol solution containing 1% urea, and then drying to remove the solvent. Generally, it can be obtained in the form of an extract (chamomile extract). The chamomile extract is composed of the chamomile extract, water, and other components (hydrophilic solvents, etc.). Such chamomile extracts contain umbelliferone, apigenin, apigenin-7-o-glycoside, hernialin, and the like. The liquid bath agent of the present invention may contain chamomile extract so that the content of the chamomile extract falls within the specified range of the present invention.

[0034] The content of component (D) in the bath agent is preferably 0.001% by mass or more, more preferably 0.005% by mass or more, and even more preferably 0.01% by mass or more, as a dry solid content, from the viewpoint of improving the hot bath effect. Also, from the viewpoint of improving storage stability, it is preferably 0.1% by mass or less, more preferably 0.05% by mass or less, and even more preferably 0.03% by mass or less.

[0035] <Ingredient (E): Phenoxyethanol> The bath additive of the present invention contains phenoxyethanol as component (E). The content of component (E) in the bath additive is 0.60% by mass or more from the viewpoint of improving the hot bath effect when used in combination with component (D), and from the viewpoint of improving the hot bath effect when used in combination with component (D) and improving storage stability, it is preferably 3% by mass or less, more preferably 2% by mass or less, even more preferably 1.5% by mass or less, still more preferably 1.2% by mass or less, and even more preferably 1% by mass or less.

[0036] In the bath additive of the present invention, the mass ratio of component (E) to component (D) [(E) / (D)], from the viewpoint of improving the hot bath effect and improving storage stability, is 18 or more, preferably 19 or more, more preferably 20 or more, even more preferably 25 or more, still more preferably 30 or more, and is preferably 150 or less, still more preferably 100 or less, still more preferably 70 or less, still more preferably 50 or less, and still more preferably 40 or less.

[0037] <Other ingredients> The bath additive of the present invention may include other ingredients, such as surfactants other than ingredient (B); water-soluble polymers such as polyethylene glycol and dextrin; opacifying agents such as titanium oxide; preservatives such as sodium benzoate; medicinal ingredients such as herbal medicines; pigments such as Blue No. 1, Blue No. 2, Yellow No. 4, Yellow No. 5, Green No. 3, Green No. 4, Green No. 204, Yellow No. 202, Yellow No. 203, Red No. 106, chlorophyll, riboflavin, crocin, anthraquinone, cochineal, canthaxanthin, and safflower; fragrances; and the like.

[0038] From the viewpoint of obtaining the effects of the present invention, the total content of components (A) to (E) in the bath additive is preferably 65% ​​by mass or more, more preferably 70% by mass or more, and even more preferably 80% by mass or more, and may be 100% by mass.

[0039] <Dosage form, manufacturing method, etc.> The bath additive of the present invention is preferably a self-emulsifying liquid bath additive. The liquid bath additive is a transparent and homogeneous liquid before use, but disperses rapidly in bath water after being poured into the bath water, making the bath water cloudy. The method for producing the bath additive of the present invention is not particularly limited, and the bath additive can be prepared by blending and mixing the above-mentioned components in a conventional manner. EXAMPLES

[0040] The present invention will be described below with reference to examples, but the present invention is not limited to the scope of the examples.

[0041] Examples 1 to 8 and Comparative Examples 1 to 4 (Preparation and Evaluation of Liquid Bath Additives) Liquid bath additives were prepared by mixing the amounts of each component shown in Table 1. Component (D) was prepared by drying commercially available chamomile extract, removing the solvent, and extracting the dry solid content. The content (mass%) of each component shown in Table 1 is the active amount. In addition, the sweat sensation and storage stability were evaluated by the following methods. The results are shown in Table 1.

[0042] <Sweating sensation> 30mL of each liquid bath additive was added to 150L of bath water set at 40℃, and immediately after stirring the bath water, 10 expert panelists bathed up to their shoulders for 10 minutes and evaluated the sensation of sweating according to the following criteria. The average scores of the 10 panelists are shown in Table 1. The higher the value, the greater the sensation of sweating. (Evaluation Criteria) 5: Sweat profusely all over my face 4: Sweat all over my face 3: My forehead and hair roots feel moist with sweat. 2: Only slightly sweaty 1: I don't feel like I'm sweating

[0043] <Storage stability> Transparent containers filled with 30 mL of each liquid bath additive were sealed and stored in thermostatic chambers at 25°C and 50°C for one month, respectively, and the appearance was visually observed and evaluated according to the following criteria. Evaluation Criteria 3: Transparent and uniform 2: No separation or precipitation, but opaque 1: Separation or precipitation is observed

[0044] [Table 1]

[0045] *1 Liquid paraffin: "Kaidor" manufactured by Sonneborn, LLC *2 Isopropyl myristate: Kao Corporation's "Excepearl IPM" *3 Isostearyl isostearate: "ISIS" manufactured by Kokyu Alcohol Kogyo Co., Ltd. *4 Tri(caprylic / capric acid)glyceryl: Kao Corporation's "Coconard MT" *5 Polyoxyethylene (6) sorbitan monooleate: "Rheodor TW-O106V" manufactured by Kao Corporation *6 Polyoxyethylene (40) tetraoleate sorbitol: "Rheodol 440V" manufactured by Kao Corporation *7 Polyoxyethylene (60) tetraoleate sorbitol: "Rheodol 460V" manufactured by Kao Corporation *8 Polyoxyethylene (20) sorbitan monooleate: Kao Corporation's "Rheodor TW-O120V" *9 Chamomile extract: obtained by drying chamomile liquid (manufactured by Ichimaru Pharcos Co., Ltd., dry solids concentration of chamomile extract: 0.9% by mass) and removing the solvent. *10 Phenoxyethanol: "Neoron PH 100" manufactured by The Dow Chemical Company [Industrial Applicability]

[0046] According to the present invention, it is possible to provide a liquid bath additive which has a high warm bath effect and has good storage stability even when it contains a large amount of liquid oil.

Claims

1. Component (A): liquid oil, Component (B): nonionic surfactant, Component (C): water, Component (D): chamomile extract, and Contains component (E): phenoxyethanol, The content of component (A) is 60% by mass or more and 90% by mass or less, The content of component (E) is 0.60% by mass or more, A liquid bath additive, in which the mass ratio of component (E) to component (D) [(E) / (D)] is 18 or more.

2. 2. The liquid bath additive according to claim 1, wherein component (A) is at least one oil selected from the group consisting of hydrocarbon oils, silicone oils, and ester oils.

3. 3. The liquid bath additive according to claim 1 or 2, wherein component (B) comprises a nonionic surfactant (B1) having an HLB of less than 13.

0.

4. The liquid bath additive according to any one of claims 1 to 3, wherein the content of component (C) is 0.1% by mass or more and 10% by mass or less.

5. The liquid bath additive according to any one of claims 1 to 4, wherein the total content of components (A) to (E) is 80 mass% or more.

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