foaming components

Abstract

To provide a foamable composition having improved foamability and an article.SOLUTION: The present invention provides [1] a foamable composition that comprises a foamer (A) and an organic solvent (B), the foamer (A) comprising non-crosslinked silicone (A1), and the organic solvent (B) comprising at least one water immiscible solvent (B1) that is liquid at 25°C and selected from the group consisting of ester oil and fatty acid, and [2] an article comprising a foam dispensing container, and the foamable composition set forth in [1] accommodated in the foam dispensing container.SELECTED DRAWING: None

Description

[Technical Field]

[0001] This invention relates to foaming compositions and articles. [Background technology]

[0002] Compositions used in perfumes, cosmetics, skincare products, toiletries, etc., may contain foaming agents to increase volume through foaming, thereby improving properties such as uniform application, drip prevention, shape retention, and softness of feel. Furthermore, the above composition may contain an organic solvent to improve its applicability.

[0003] Examples of technologies relating to foaming compositions containing foaming agents and organic solvents include the technologies described in Patent Documents 1 and 2. Patent Document 1 describes the use of an effervescent composition for killing arthropods, wherein the effervescent composition comprises, as an active ingredient, one or more saturated linear or branched hydrocarbons having 10 to 22 carbon atoms in an amount exceeding 70% by weight, and as a stabilizer, 0.01% to 10% by weight of dimethicone having a viscosity of at least 20,000 centistokes at 25°C.

[0004] Patent Document 2 describes a non-emulsified foam aerosol composition characterized by containing liquid oil, an organic silicone resin, and a propellant, which is useful as a cleansing agent for oily cosmetics and is excellent in terms of cleaning power, usability, and stability. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Special Publication No. 2010-515766 [Patent Document 2] Japanese Patent Application Publication No. 2-300108 [Overview of the project] [Problems that the invention aims to solve]

[0006] Foaming compositions containing foaming agents and organic solvents have good applicability because they can turn organic solvents into foam, but there was room for improvement in terms of foaming properties. The present invention relates to foaming compositions and articles with improved foaming properties. [Means for solving the problem]

[0007] The inventors have found that the foaming properties of a foaming composition can be improved by using a non-crosslinked silicone as a foaming agent in combination with at least one water-immiscible solvent selected from ester oils and fatty acids, which is liquid at 25°C.

[0008] In other words, the present invention relates to the following [1] and [2]. [1] A foaming composition comprising a foaming agent (A) and an organic solvent (B), A foaming composition comprising a non-crosslinked silicone (A1) as the foaming agent (A), and at least one water-immiscible solvent (B1) selected from the group consisting of ester oils and fatty acids, which is liquid at 25°C. [2] An article comprising a foam dispensing container and the foaming composition described in [1] within the foam dispensing container. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide foaming compositions and articles with improved foaming properties. [Modes for carrying out the invention]

[0010] [Foaming composition] The foaming composition of the present invention is a foaming composition comprising a foaming agent (A) and an organic solvent (B), wherein the foaming agent (A) comprises a non-crosslinked silicone (A1), and the organic solvent (B) comprises at least one water-immiscible solvent (B1) selected from the group consisting of ester oils and fatty acids, which is liquid at 25°C.

[0011] The foaming composition of the present invention can improve foaming properties. In this specification, the finer and bulkier the foam generated, the better the foaming ability is judged to be, and the longer the time from foam generation to disappearance, the better the foam stability is judged to be.

[0012] According to the foaming composition of the present invention, foaming properties can be improved by including a non-crosslinked silicone (A1) as the foaming agent (A) and a water-immiscible solvent (B1) as the organic solvent (B). The reason for this is not entirely clear, but it is thought to be as follows. First, it is thought that the rate of decrease in the dynamic surface tension of the foaming agent (A) is accelerated when the foaming agent (A) contains a non-crosslinked silicone (A1) and the organic solvent (B) contains a water-immiscible solvent (B1). Here, the rate of decrease in the dynamic surface tension of the foaming agent (A) is thought to represent the rate at which the foaming agent (A) adsorbs to the gas-liquid interface, that is, the rate of formation of the gas-liquid interfacial film. Furthermore, it is thought that the rate of formation of the gas-liquid interfacial film is improved when the foaming agent (A) contains a non-crosslinked silicone (A1) and the organic solvent (B) contains a water-immiscible solvent (B1), and as a result, the rate and amount of foam formation are improved, thus improving foaming performance.

[0013] <Foaming agent (A)> The foaming composition of the present invention contains a foaming agent (A). In this specification, "foaming agent" means a compound that, when dissolved in a solvent, generates foam in the resulting solution, stabilizes the generated foam, and prevents its disappearance. The foaming agent (A) may be used alone or in combination of two or more types.

[0014] The foaming agent (A) contains non-crosslinked silicone (A1). In this specification, "non-crosslinked silicone" means RSiO 3 / 2 T unit and SiO represented by 4 / 2 It does not include the Q unit represented by R3SiO 1 / 2 The M unit and R2SiO are represented by the M unit and R2SiO 2 / 2It refers to silicone composed of D units represented by the following formula. Here, R is hydrogen or an alkyl group having 1 to 3 carbon atoms, preferably a methyl group, an ethyl group, or an n-propyl group, more preferably a methyl group or an ethyl group, and still more preferably a methyl group. In addition, in this specification, "modified silicone" refers to silicone in which at least one of the non-crosslinked silicones contains a functional group other than hydrogen or an alkyl group having 1 to 3 carbon atoms in R.

[0015] As the non-crosslinked silicone (A1), from the viewpoint of further improving the foaming property and foam stability of the foaming composition according to the present invention, and from the viewpoint of further improving the persistence and water resistance of the coating film obtained from the foaming composition according to the present invention, it preferably contains at least one selected from the group consisting of polydimethylsiloxane, polymethylhydrosiloxane, hydrosilyl-modified silicone, polyether-modified silicone, carboxy-modified silicone, amino-modified silicone, fluoroalkyl-modified silicone, carbinol-modified silicone, phenyl-modified silicone, polyglycerin-modified silicone, higher fatty acid ester-modified silicone, polysiloxane betaine, and polysilicone-9. More preferably, it contains at least one selected from the group consisting of polydimethylsiloxane, polyether-modified silicone, carboxy-modified silicone, amino-modified silicone, fluoroalkyl-modified silicone, carbinol-modified silicone, and phenyl-modified silicone. Still more preferably, it contains at least one selected from the group consisting of polydimethylsiloxane, carboxy-modified silicone, amino-modified silicone, fluoroalkyl-modified silicone, and carbinol-modified silicone. Even more preferably, it contains at least one selected from the group consisting of carboxy-modified silicone, amino-modified silicone, fluoroalkyl-modified silicone, and carbinol-modified silicone.

[0016] The polyether-modified silicone has a structure in which the alkyl group in the side chain and / or at the terminal of the silicone is replaced with a polyether group. As the polyether group, a polyethyleneoxy group, a polypropyleneoxy group, or a polyalkyleneoxy group in which an ethyleneoxy group (EO) and a propyleneoxy group (PO) are added in a block or random manner is preferable.

[0017] The foaming agent (A) may contain a foaming agent other than the non-crosslinked silicone (A1) as long as the effects of the invention are not impaired. Examples of the foaming agent other than the non-crosslinked silicone (A1) include polymer surfactants such as (meth)acrylic polymers.

[0018] From the viewpoint of further improving the foaming property and foam stability of the foaming composition according to the present invention, the content of the non-crosslinked silicone (A1) in the foaming agent (A) is preferably 50% by mass or more, more preferably 60% by mass or more, still more preferably 70% by mass or more, still more preferably 80% by mass or more, still more preferably 90% by mass or more, still more preferably 95% by mass or more, still more preferably 98% by mass or more, and is preferably 100% by mass or less.

[0019] From the viewpoint of further improving the foaming property and foam stability of the foaming composition according to the present invention, the time when the decrease in the dynamic surface tension starts according to the following measurement method 1 is preferably within 60,000 ms, more preferably within 10,000 ms, still more preferably within 6,000 ms, still more preferably within 3,000 ms, still more preferably within 600 ms, still more preferably within 250 ms, still more preferably within 200 ms, still more preferably within 150 ms, still more preferably within 100 ms, still more preferably within 50 ms, and still more preferably within 30 ms. The lower limit of the time when the decrease in the dynamic surface tension starts according to the following measurement method 1 is not particularly limited, but is, for example, 1 ms or more, and may be 5 ms or more. (Measurement method 1) A foaming agent (A) is dissolved in an organic solvent (B) to prepare a foaming agent (A) solution with a concentration of 0.5% by mass. The dynamic surface tension of the foaming agent (A) solution and the organic solvent (B) alone is then measured at 25°C for bubble generation times from 10 ms to 60,000 ms using the maximum foam pressure method. The time at which the difference between the dynamic surface tension of the foaming agent (A) solution and the dynamic surface tension of the organic solvent (B) alone becomes 0.3 mN / m or more is defined as the time (ms) at which the decrease in dynamic surface tension begins. The Maximum Bubble Pressure method is a method of calculating surface tension by sending gas through a thin tube (probe) inserted into a liquid and measuring the maximum pressure (maximum bubble pressure) at which bubbles are generated from the tip of the probe. The basic principle is based on the Young-Laplace equation. The organic solvent (B) used in measurement method 1 is of the same type and composition as the organic solvent (B) that constitutes the foaming composition according to the present invention. The details of the method for measuring dynamic surface tension are as described in the examples below.

[0020] From the viewpoint of further improving the foaming properties and foam stability of the foaming composition according to the present invention, the decrease in static surface tension of the foaming agent (A) according to the measurement method 2 below is preferably 0.5 mN / m or more, more preferably 0.7 mN / m or more, even more preferably 1.0 mN / m or more, even more preferably 1.5 mN / m or more, even more preferably 1.7 mN / m or more, even more preferably 1.8 mN / m or more, and even more preferably 2.0 mN / m or more. The upper limit of the decrease in static surface tension according to the measurement method 2 below is not particularly limited, but for example it may be 10.0 mN / m or less, 5.0 mN / m or less, 4.5 mN / m or less, or 4.0 mN / m or less. (Measurement method 2) A foaming agent (A) is dissolved in an organic solvent (B) to prepare a foaming agent (A) solution with a concentration of 0.5% by mass. Then, a ring is raised at a speed of 1 mm / min using the Du Nouy method, and the static surface tension of both the foaming agent (A) solution and the organic solvent (B) is measured at 25°C. The decrease in static surface tension (mN / m) is then defined as the difference between the static surface tension of the organic solvent (B) alone and the static surface tension of the foaming agent (A) solution. The organic solvent (B) used in measurement method 2 is of the same type and composition as the organic solvent (B) that constitutes the foaming composition according to the present invention. Details of the method for measuring static surface tension are as described in the examples below.

[0021] <Organic solvent (B)> The foaming composition of the present invention contains an organic solvent (B). Organic solvent (B) may be used alone or in combination of two or more types.

[0022] The organic solvent (B) comprises at least one water-immiscible solvent (B1) selected from the group consisting of ester oils and fatty acids, which is liquid at 25°C. From the viewpoint of further improving the foaming properties and foam stability of the foaming composition according to the present invention, it is preferable that the water-immiscible solvent (B1) includes an ester oil that is liquid at 25°C. In this specification, "liquid at 25°C" means a state in which the substance is fluid in a bulk state under 1 atmosphere and 25°C.

[0023] The number of carbon atoms in the water-immiscible solvent (B1) is preferably 1 or more, more preferably 2 or more, even more preferably 3 or more, even more preferably 4 or more, even more preferably 5 or more, even more preferably 6 or more, and preferably 30 or less, more preferably 25 or less, even more preferably 22 or less, even more preferably 20 or less, even more preferably 19 or less, and even more preferably 18 or less, from the viewpoint of further improving the foaming properties and foam stability of the foaming composition according to the present invention, and from the viewpoint of further improving the applicability to hair, skin, etc.

[0024] As for the water-immiscible solvent (B1), from the viewpoint of further improving the foaming properties and foam stability of the foaming composition according to the present invention, and from the viewpoint of further improving the applicability to hair, skin, etc., for example, cetyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, isononyl isononanoate, 2-ethylhexyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, hexyl laurate, isostearyl laurate, butyl myristate, isopropyl myristate, decyl myristate, isotridecyl myristate, isocetyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, isopropyl isostearate Preferably, the ester oil contains ester oils such as 2-ethylhexanoic acid, isodecyl neopentanoate, ethyl oleate, isodecyl oleate, ethyl linoleate, isopropyl linoleate, lanolin acetate, methyl castor oil fatty acid (methyl ricinoleate), glyceryl tri-2-ethylhexanoate, glyceryl caprylate, glyceryl tri(caprylic / capric acid), neopentyl glycol di-2-ethylhexanoate, di(caprylic / capric acid)propanediol, and alkyl benzoate (alkyl with 12 to 15 carbon atoms); and at least one selected from the group consisting of fatty acids such as 2-ethylhexanoic acid, isostearic acid, palmitoleic acid, margadecic acid, stearic acid, oleic acid, and linoleic acid.Among these, from the viewpoint of further improving the foaming properties and foam stability of the foaming composition according to the present invention, and from the viewpoint of further improving the applicability to hair, skin, etc., the water-immiscible solvent (B1) is preferably cetyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, isononyl isononanoate, 2-ethylhexyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, hexyl laurate, isostearyl laurate, butyl myristate, isopropyl myristate, decyl myristate, isotridecyl myristate, isocetyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-ethyl stearate The components are hydroxyl, isopropyl isostearate, isodecyl neopentanoate, glyceryl caprylate, caprylic / capric triglyceride, neopentyl glycol di2-ethylhexanoate, dicaprylic / capric propanediol, alkyl benzoate (alkyl with 12-15 carbon atoms), and 2-ethylhexanoic acid; more preferably is isononyl isononanoate, isotridecyl isononanoate, isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, and even more preferably isononyl isononanoate, isotridecyl isononanoate, isopropyl myristate, and 2-ethylhexanoic acid.

[0025] From the viewpoint of further improving the foaming properties and foam stability of the foaming composition according to the present invention, it is preferable that the water-immiscible solvent (B1) is immiscible with water at 25°C. In this specification, "immiscible with water" means that there is a ratio in which the substance does not form a solution with water.

[0026] The content of the water-immiscible solvent (B1) in the organic solvent (B) is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 90% by mass or more, even more preferably 95% by mass or more, even more preferably 98% by mass or more, and preferably 100% by mass or less, from the viewpoint of further improving the foaming ability and foam stability of the foaming composition according to the present invention.

[0027] The foaming composition according to the present invention is formulated with the viewpoint of further improving the foaming properties and foam stability of the foaming composition according to the present invention, and further improving the applicability to hair, skin, etc., at 25°C and a shear rate of 500s. -1 The shear viscosity is preferably 25.0 mPa·s or less, more preferably 22.0 mPa·s or less, even more preferably 20.0 mPa·s or less, even more preferably 18.0 mPa·s or less, and even more preferably 15.0 mPa·s or less. The lower limit of the shear viscosity is not particularly limited, but for example it may be 0.1 mPa·s or more, 0.5 mPa·s or more, 1.0 mPa·s or more, or 3.0 mPa·s or more. 25℃, shear rate 500s -1 Details of the method for measuring shear viscosity in this context are described in the examples below.

[0028] From the viewpoint of further improving the foaming properties and foam stability of the foaming composition according to the present invention, and from the viewpoint of further improving the durability and water resistance of the coating film obtained from the foaming composition according to the present invention, the content of the foaming agent (A) in the foaming composition according to the present invention is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, even more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, even more preferably 1.0% by mass or more, even more preferably 2.0% by mass or more, even more preferably 5.0% by mass or more, and even more preferably 8.0% by mass or more, from the viewpoint of further improving the applicability to hair, skin, etc., it is preferably 50% by mass or less, more preferably 40% by mass or less, even more preferably 30% by mass or less, even more preferably 20% by mass or less, even more preferably 15% by mass or less, and even more preferably 12% by mass or less.

[0029] From the viewpoint of further improving applicability to hair, skin, etc., the content of organic solvent (B) in the foaming composition according to the present invention is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 85% by mass or more, and even more preferably 88% by mass or more, when the total amount of the foaming composition is 100% by mass. From the viewpoint of further improving the foaming properties and foam stability of the foaming composition according to the present invention, and from the viewpoint of further improving the durability and water resistance of the coating film obtained from the foaming composition according to the present invention, it is preferably 99.99% by mass or less, more preferably 99.95% by mass or less, even more preferably 99.9% by mass or less, even more preferably 99.7% by mass or less, even more preferably 99.5% by mass or less, even more preferably 99.0% by mass or less, even more preferably 98.0% by mass or less, even more preferably 95.0% by mass or less, and even more preferably 92.0% by mass or less.

[0030] The mass ratio ((A) / (B)) of the foaming agent (A) to the content of organic solvent (B) in the foaming composition according to the present invention is preferably 0.001 or more, more preferably 0.01 or more, even more preferably 0.05 or more, and even more preferably 0.08 or more, from the viewpoint of further improving the foaming ability and foam stability of the foaming composition according to the present invention, and from the viewpoint of further improving the durability and water resistance of the coating film obtained from the foaming composition according to the present invention, and preferably 1 or less, more preferably 0.5 or less, even more preferably 0.3 or less, and even more preferably 0.15 or less, from the viewpoint of further improving the applicability to hair, skin, etc.

[0031] The water content in the foaming composition according to the present invention is preferably less than 50% by mass, more preferably less than 25% by mass, even more preferably less than 10% by mass, even more preferably less than 5% by mass, even more preferably less than 1% by mass, even more preferably less than 0.1% by mass, and even more preferably less than 0.01% by mass, when the total amount of the foaming composition is 100% by mass, and it is preferable that the foaming composition according to the present invention is substantially water-free. In this specification, "substantially water-free" means that water is not intentionally added and does not exclude the presence of small amounts of water as impurities.

[0032] The foaming composition according to the present invention can be used, for example, in cosmetics in general that utilize foam formation. In this specification, "cosmetics that utilize foam formation" refers to products that come into direct contact with the human body, such as perfumes, cosmetics, skincare products, and toiletries; and household products such as laundry detergents, household cleaners, fabric softeners, insecticides, office glues, paints, air fresheners, and pet shampoos, which are used by foaming them up.

[0033] The foaming composition according to the present invention may contain, as components other than the foaming agent (A) and organic solvent (B), components used depending on the type of cosmetic product, to the extent that they do not hinder the effects of the present invention. Examples of such components include fatty acids, esters, sugars, oils and fats, alcohols, vitamins, amino acids, UV absorbers, oils, water-soluble polymers, thickeners, neutralizing agents, propellants, pH adjusters, bactericides, anti-inflammatory agents, preservatives, colorants, chelating agents, whitening agents, blood circulation promoters, cooling agents, antiperspirants, insect repellents, physiologically active ingredients, salts, moisturizers, antioxidants, fragrances, plant extracts, pharmaceuticals, etc. (however, those corresponding to the foaming agent (A) and organic solvent (B) are excluded).

[0034] Examples of the foaming composition according to the present invention include liquid, emulsion, cream, paste, gel, and wax forms. The foaming composition according to the present invention can also be applied as a spray agent, mousse agent, and the like. The foaming composition according to the present invention can preferably be used by application.

[0035] The total content of the foaming agent (A) and organic solvent (B) in the foaming composition according to the present invention is preferably 30% by mass or more, more preferably 40% by mass or more, even more preferably 50% by mass or more, even more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 90% by mass or more, even more preferably 95% by mass or more, and preferably 100% by mass or less, when the total amount of the foaming composition according to the present invention is 100% by mass.

[0036] The content of components other than the foaming agent (A) and organic solvent (B) in the foaming composition according to the present invention is not particularly limited as it is determined according to the type of cosmetic product, and can be appropriately determined based on various publicly available information.

[0037] The method for producing the foaming composition according to the present invention is not particularly limited, and can be produced, for example, by mixing each component in a known apparatus.

[0038] [Goods] The article of the present invention comprises a foam dispensing container and a foaming composition according to the present invention contained within the foam dispensing container. According to the article of the present invention, the foaming composition can be foamed by mixing the foaming composition with a gas such as air using the foam dispensing container. Since the article of the present invention contains the foaming composition according to the present invention in a foam dispensing container, it can obtain the same effects as the foaming composition according to the present invention.

[0039] As a foam dispensing container, a non-gas type foam dispensing container is preferred from the standpoint of ease of recycling and environmental friendliness because it does not use propellants. In this specification, a non-aerosol type foam dispensing container means a non-aerosol type foam dispensing container other than an aerosol type that uses a propellant, and refers to a container that can mix the composition filled in the dispensing container with air and dispense it in a foamy form. Specifically, examples include pump foamer containers, squeeze foamer containers, trigger spray containers, etc.

[0040] With regard to the embodiments described above, the present invention further discloses the following embodiments.

[0041] <1> A foaming composition comprising a foaming agent (A) and an organic solvent (B), A foaming composition comprising a non-crosslinked silicone (A1) as the foaming agent (A), and at least one water-immiscible solvent (B1) selected from the group consisting of ester oils and fatty acids, which is liquid at 25°C. <2> The non-crosslinked silicone (A1) preferably comprises at least one selected from the group consisting of polydimethylsiloxane, polyhydromethylsiloxane, hydrosilyl-modified silicone, polyether-modified silicone, carboxy-modified silicone, amino-modified silicone, fluoroalkyl-modified silicone, carbinol-modified silicone, phenyl-modified silicone, polyglycerin-modified silicone, higher fatty acid ester-modified silicone, polysiloxane betaine, and polysilicone-9; more preferably comprises at least one selected from the group consisting of polydimethylsiloxane, polyether-modified silicone, carboxy-modified silicone, amino-modified silicone, fluoroalkyl-modified silicone, carbinol-modified silicone, and phenyl-modified silicone; even more preferably comprises at least one selected from the group consisting of polydimethylsiloxane, carboxy-modified silicone, amino-modified silicone, fluoroalkyl-modified silicone, and carbinol-modified silicone; even more preferably comprises at least one selected from the group consisting of carboxy-modified silicone, amino-modified silicone, fluoroalkyl-modified silicone, and carbinol-modified silicone. <1> The foaming composition described above. <3> The content of the non-crosslinked silicone (A1) in the foaming agent (A) is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 90% by mass or more, even more preferably 95% by mass or more, even more preferably 98% by mass or more, and preferably 100% by mass or less. <1> or <2> The foaming composition described above. <4> The water content is preferably less than 50% by mass, more preferably less than 25% by mass, even more preferably less than 10% by mass, even more preferably less than 5% by mass, even more preferably less than 1% by mass, even more preferably less than 0.1% by mass, and even more preferably less than 0.01% by mass, and the foaming composition is even more preferably substantially water-free. <1> ~ <3> A foaming composition as described in any of the following. <5> 25℃, shear rate 500s -1The shear viscosity of the foaming composition in the above is preferably 25.0 mPa·s or less, more preferably 22.0 mPa·s or less, even more preferably 20.0 mPa·s or less, even more preferably 18.0 mPa·s or less, even more preferably 15.0 mPa·s or less, and may be 0.1 mPa·s or more, 0.5 mPa·s or more, 1.0 mPa·s or more, or 3.0 mPa·s or more. <1> ~ <4> A foaming composition as described in any of the following. <6> The foaming agent (A) has a time at which the decrease in dynamic surface tension, as measured by the measurement method 1 below, begins, preferably within 60,000 ms, more preferably within 10,000 ms, even more preferably within 6,000 ms, even more preferably within 3,000 ms, even more preferably within 600 ms, even more preferably within 250 ms, even more preferably within 200 ms, even more preferably within 150 ms, even more preferably within 100 ms, even more preferably within 50 ms, and even more preferably within 30 ms, and may be 1 ms or more, or 5 ms or more. <1> ~ <5> A foaming composition as described in any of the following. (Measurement method 1) The foaming agent (A) is dissolved in the organic solvent (B) to prepare a foaming agent (A) solution with a concentration of 0.5% by mass. Then, the dynamic surface tension of the foaming agent (A) solution and the organic solvent (B) alone is measured at 25°C for bubble generation times from 10 ms to 60,000 ms using the maximum foam pressure method. The time at which the difference between the dynamic surface tension of the organic solvent (B) alone and the dynamic surface tension of the foaming agent (A) solution becomes 0.3 mN / m or more is defined as the time (ms) at which the decrease in dynamic surface tension begins. <7> The foaming agent (A) has a static surface tension reduction of preferably 0.5 mN / m or more, more preferably 0.7 mN / m or more, even more preferably 1.0 mN / m or more, even more preferably 1.5 mN / m or more, even more preferably 1.7 mN / m or more, even more preferably 1.8 mN / m or more, and even more preferably 2.0 mN / m or more, and may also be 10.0 mN / m or less, 5.0 mN / m or less, 4.5 mN / m or less, or 4.0 mN / m or less. <1> ~ <6> A foaming composition as described in any of the following. (Measurement method 2) The foaming agent (A) is dissolved in the organic solvent (B) to prepare a foaming agent (A) solution with a concentration of 0.5% by mass. Then, the ring is raised at a speed of 1 mm / min using the Du Nouy method, and the static surface tension at 25°C is measured for both the foaming agent (A) solution and the organic solvent (B). The decrease in static surface tension (mN / m) is then defined as the difference between the static surface tension of the organic solvent (B) alone and the static surface tension of the foaming agent (A) solution. <8> The number of carbon atoms in the water-immiscible solvent (B1) is preferably 1 or more, more preferably 2 or more, even more preferably 3 or more, even more preferably 4 or more, even more preferably 5 or more, even more preferably 6 or more, and preferably 30 or less, more preferably 25 or less, even more preferably 22 or less, even more preferably 20 or less, even more preferably 19 or less, and even more preferably 18 or less. <1> ~ <7> A foaming composition as described in any of the following. <9> The water-immiscible solvent (B1) is preferably cetyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, isononyl isononanoate, 2-ethylhexyl isononanoate, isodecyl isononanoate, isotridecyl isononanoate, hexyl laurate, isostearyl laurate, butyl myristate, isopropyl myristate, decyl myristate, isotridecyl myristate, isocetyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-ethylhexyl stearate, isopropyl isostearate, isodecyl neopentanoate, and capsulphate. Glyceryl glycerate, caprylic / capric triglyceride, neopentyl glycol di-2-ethylhexanoate, propanediol dicaprylic / capric diethylhexanoate, alkyl benzoate (alkyl with 12-15 carbon atoms), 2-ethylhexanoic acid, more preferably isononyl isononanoate, isotridecyl isononanoate, isopropyl myristate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-ethylhexanoic acid, even more preferably isononyl isononanoate, isotridecyl isononanoate, isopropyl myristate, 2-ethylhexanoic acid. <1> ~ <8> A foaming composition as described in any of the following. <10> The content of the water-immiscible solvent (B1) in the organic solvent (B) is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 90% by mass or more, even more preferably 95% by mass or more, even more preferably 98% by mass or more, and preferably 100% by mass or less. <1> ~ <9> A foaming composition as described in any of the following. <11> The content of the foaming agent (A) in the foaming composition is preferably 0.01% by mass or more, more preferably 0.05% by mass or more, even more preferably 0.1% by mass or more, even more preferably 0.3% by mass or more, even more preferably 0.5% by mass or more, even more preferably 1.0% by mass or more, even more preferably 2.0% by mass or more, even more preferably 5.0% by mass or more, even more preferably 8.0% by mass or more, and preferably 50% by mass or less, more preferably 40% by mass or less, even more preferably 30% by mass or less, even more preferably 20% by mass or less, even more preferably 15% by mass or less, and even more preferably 12% by mass or less. <1> ~ <10> A foaming composition as described in any of the following. <12> The content of the organic solvent (B) in the foaming composition is preferably 50% by mass or more, more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 85% by mass or more, even more preferably 88% by mass or more, and preferably 99.99% by mass or less, more preferably 99.95% by mass or less, even more preferably 99.9% by mass or less, even more preferably 99.7% by mass or less, even more preferably 99.5% by mass or less, even more preferably 99.0% by mass or less, even more preferably 98.0% by mass or less, even more preferably 95.0% by mass or less, and even more preferably 92.0% by mass or less, when the total amount of the foaming composition is taken as 100% by mass. <1> ~ <11> A foaming composition as described in any of the following. <13> The mass ratio ((A) / (B)) of the content of the foaming agent (A) to the content of the organic solvent (B) in the foaming composition is preferably 0.001 or more, more preferably 0.01 or more, even more preferably 0.05 or more, even more preferably 0.08 or more, and preferably 1 or less, more preferably 0.5 or less, even more preferably 0.3 or less, and even more preferably 0.15 or less. <1> ~ <12> A foaming composition as described in any of the following. <14> The total content of the foaming agent (A) and the organic solvent (B) in the foaming composition is preferably 30% by mass or more, more preferably 40% by mass or more, even more preferably 50% by mass or more, even more preferably 60% by mass or more, even more preferably 70% by mass or more, even more preferably 80% by mass or more, even more preferably 90% by mass or more, even more preferably 95% by mass or more, and preferably 100% by mass or less, when the total amount of the foaming composition is 100% by mass. <1> ~ <13> A foaming composition as described in any of the following. <15> A foam dispensing container and inside the foam dispensing container <1> ~ <14> An article comprising a foaming composition as described in any of the following. <16> The foam dispensing container is a non-gas type foam dispensing container. <15> The items listed. <17> The foam dispensing container is a pump foamer container, a squeeze foamer container, or a trigger spray container. <15> or <16> The items listed. [Examples]

[0042] The present invention will be specifically described below with reference to examples, but the present invention is not limited in any way by these examples. In the following examples and comparative examples, "parts" and "%" refer to "parts by mass" and "% by mass" unless otherwise specified.

[0043] In the examples and comparative examples, the following were used as the foaming agent and organic solvent.

[0044] • Foaming agent (Non-crosslinked silicone) Unmodified silicone 1 (polydimethylsiloxane, manufactured by Shin-Etsu Chemical Co., Ltd., product name: KF-96-20CS) Carboxylated Silicone 1 (Functional group: Carboxy group, Biscarboxydecyldimethicone, manufactured by Momentive, product name: Silsoft) TM INX Fluid) Amino-modified silicone 1 (Functional group: amino group, amino-modified silicone, manufactured by Shin-Etsu Chemical Co., Ltd., product name: KF-864) Fluoroalkyl-modified silicone 1 (Functional group: fluoroalkyl group, fluoroalkyl-modified silicone, manufactured by Shin-Etsu Chemical Co., Ltd., product name: FL-5) Carbinol-modified silicone 1 (Functional group: carbinol group, carbinol-modified silicone, manufactured by Shin-Etsu Chemical Co., Ltd., product name: KF-6003) Carboxylated Silicone 2 (Functional group: Carboxy group, Carboxylated silicone, Manufactured by Shin-Etsu Chemical Co., Ltd., Product name: X-22-3710) Polyether-modified silicone 1 (Functional group: polyoxyalkylene group, PEG-9 polydimethylsiloxyethyl dimethicone, manufactured by Shin-Etsu Chemical Co., Ltd., product name: KF-6028) Polyether-modified silicone 2 (Functional group: polyoxyalkylene group, PEG-10 dimethicone, manufactured by Shin-Etsu Chemical Co., Ltd., product name: KF-6017) Phenyl-modified silicone 1 (Functional group: phenyl group, phenyl-modified silicone, manufactured by Shin-Etsu Chemical Co., Ltd., product name: KF-50-100CS) Polyether-modified silicone 3 (Functional group: polyoxyalkylene group, PEG-3 dimethicone, manufactured by Shin-Etsu Chemical Co., Ltd., product name: KF-6015) (Cross-linked silicone) Cross-linked silicone 1 (Functional group: polyoxyalkylene group, (PEG-15 / lauryl dimethicone) crosspolymer, manufactured by Shin-Etsu Chemical Co., Ltd., product name: KSG-330 (product contains glyceryl tri-2-ethylhexanoate))

[0045] • Organic solvents (A water-immiscible solvent that is liquid at 25°C) Ester oil 1 (Isononyl isononanoate, manufactured by Nisshin Oillio Group Ltd., product name: Saracos 99, number of carbon atoms: 18) Ester oil 2 (isotridecyl isononanoate, manufactured by Nisshin Oillio Group Ltd., product name: Saracos 913, carbon number: 22) Ester oil 3: Isopropyl myristate, manufactured by Kao Corporation, product name: Excepearl IPM, carbon number: 17) Ester oil 4: Isopropyl palmitate, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd., product name: Isopropyl palmitate, number of carbon atoms: 19) Fatty acid 1 (2-ethylhexanoic acid, manufactured by Fujifilm Wako Pure Chemical Industries, Ltd., number of carbon atoms: 8)

[0046] The various physical properties of the foaming agent were measured using the following method.

[0047] [Measurement method] (1) Dynamic surface tension of foaming agent A foaming agent solution with a concentration of 0.5% by mass was prepared by dissolving the foaming agent in an organic solvent. Next, the dynamic surface tension of the obtained foaming agent solution and the organic solvent alone was measured at 25°C at bubble generation times from 10 ms to 60,000 ms using the maximum bubble pressure method with a KRUSS bubble pressure type dynamic surface tensimeter (product name: BP100). Then, the time at which the difference between the dynamic surface tension of the organic solvent alone and the dynamic surface tension of the foaming agent solution became 0.3 mN / m or more was calculated as the time (ms) at which the decrease in dynamic surface tension began. Here, the organic solvents used were of the same type and composition as those used in each example and comparative example. The glass capillaries were treated by immersing them in Silanization Solution I (manufactured by Sigma-Aldrich) for more than 12 hours, and the tips were lightly filed before use.

[0048] (2) Static surface tension of the foaming agent A foaming agent solution with a concentration of 0.5% by mass was prepared by dissolving the foaming agent in an organic solvent. Next, the static surface tension of both the foaming agent solution and the organic solvent was measured at 25°C by raising a ring at a speed of 1 mm / min using the Du Nouy method with a KRUSS surface tensimeter (product name: K100). Then, the decrease in static surface tension (mN / m) was calculated by subtracting the static surface tension of the foaming agent solution from the static surface tension of the organic solvent alone. Here, as the organic solvent, the same type and composition as those used in each of the examples and comparative examples were used respectively.

[0049] Example 1 Unmodified silicone 1 (2 g) and ester oil 1 (18 g) were added to a 30 mL container and shaken for 10 minutes to obtain a foaming composition.

[0050] Examples 2 to 14 Foaming compositions were prepared in the same manner as in Example 1, except that the types of the foaming agent and the organic solvent were changed to those shown in Tables 1 and 2 respectively.

[0051] Comparative Example 1 Ester oil was used as it was.

[0052] Comparative Example 2 A crosslinked silicone 1 solution ((PEG-15 / lauryldimethicone) copolymer 2 g, glyceryl tri-2-ethylhexanoate 8 g) and ester oil 1 (10 g) were added to a 30 mL container and shaken for 10 minutes to obtain a foaming composition. The dynamic and static surface tensions were measured for a solution prepared by adding glyceryl tri-2-ethylhexanoate (manufactured by Kao Corporation, product name: Exceparl TGO) 8.4 g and ester oil 1 (10.6 g) to 1 g of the foaming composition ((PEG-15 / lauryldimethicone) copolymer 0.1 g, glyceryl tri-2-ethylhexanoate 0.4 g, ester oil 1 0.5 g) and shaking for 10 minutes.

[0053] [Physical Property Measurement and Evaluation] For the foaming compositions obtained in the examples and comparative examples, the following physical property measurements and evaluations were performed respectively. The evaluation results are shown in Tables 1 and 2.

[0054] <Shear Viscosity of Foaming Composition> Using a rheometer, the shear viscosity of the foaming composition at 25°C and a shear rate of 500 s -1 was measured. Equipment: MCR-302 (manufactured by Anton Paar) Jig: CP50-1 (Diameter: 50mm) Temperature: 25℃ Shear rate: 500s -1

[0055] <Evaluation of foaming properties> The foaming composition was foamed using a pump foamer container manufactured by Yoshino Kogyosho Co., Ltd. The foam dispensing mechanism used was equipped with two porous membranes with a mesh size of 90 / inch. Next, the appearance of the generated foam was observed, and the foaming properties of the foaming composition were evaluated based on the following evaluation criteria. (Evaluation Criteria) 0: No bubbles observed 1: Liquid-like with visible bubbles 2: Bubbles containing many fine air bubbles 3: Fine, slightly bulky bubbles 4: Fine, voluminous foam 5: Extremely fine and very bulky foam

[0056] <Evaluation of foam stability> A foaming composition was foamed using a pump-former container manufactured by Yoshino Kogyosho Co., Ltd. The foam dispensing mechanism used was equipped with two porous membranes with a mesh size of 90 / inch. Next, the time from foam generation to dissipation was measured to evaluate the foam stability of the foaming composition.

[0057] [Table 1]

[0058] [Table 2]

[0059] Tables 1 and 2 show that the foaming compositions of the examples exhibit better foaming properties compared to the foaming compositions of the comparative examples. From the above, it can be seen that the foaming composition according to the present invention can improve foaming properties.

Claims

1. A foaming composition comprising a foaming agent (A) and an organic solvent (B), The foaming agent (A) comprises a non-crosslinked silicone (A1), and the organic solvent (B) comprises at least one water-immiscible solvent (B1) selected from the group consisting of ester oils and fatty acids, which is liquid at 25°C. A foaming composition having a water content of less than 50% by mass.

2. The foaming composition according to claim 1, wherein the non-crosslinked silicone (A1) comprises at least one selected from the group consisting of polydimethylsiloxane, polyhydromethylsiloxane, hydrosilyl-modified silicone, polyether-modified silicone, carboxy-modified silicone, amino-modified silicone, fluoroalkyl-modified silicone, carbinol-modified silicone, phenyl-modified silicone, polyglycerin-modified silicone, higher fatty acid ester-modified silicone, polysiloxane betaine, and polysilicone-9.

3. 25°C, shear rate 500 s -1 The foaming composition according to claim 1 or 2, wherein the shear viscosity of the foaming composition in is 25.0 mPa·s or less.

4. The foaming composition according to any one of claims 1 to 3, wherein the foaming agent (A) has a time of 60,000 ms or less during which the decrease in dynamic surface tension, as measured by the measurement method 1 below, begins. (Measurement method 1) The foaming agent (A) is dissolved in the organic solvent (B) to prepare a foaming agent (A) solution with a concentration of 0.5% by mass. Then, the dynamic surface tension of the foaming agent (A) solution and the organic solvent (B) alone is measured at 25°C for bubble generation times from 10 ms to 60,000 ms using the maximum foam pressure method. The time at which the difference between the dynamic surface tension of the organic solvent (B) alone and the dynamic surface tension of the foaming agent (A) solution becomes 0.3 mN / m or more is defined as the time (ms) at which the decrease in dynamic surface tension begins.

5. The foaming composition according to any one of claims 1 to 4, wherein the foaming agent (A) has a static surface tension reduction of 0.5 mN / m or more as determined by the measurement method 2 below. (Measurement method 2) The foaming agent (A) is dissolved in the organic solvent (B) to prepare a foaming agent (A) solution with a concentration of 0.5% by mass. Then, a ring is raised at a speed of 1 mm / min using the Du Nouy method, and the static surface tension of the foaming agent (A) solution and the organic solvent (B) are measured at 25°C. The decrease in static surface tension (mN / m) is then defined as the difference between the static surface tension of the organic solvent (B) alone and the static surface tension of the foaming agent (A) solution.

6. The foaming composition according to any one of claims 1 to 5, wherein the number of carbon atoms in the water-immiscible solvent (B1) is 1 or more and 30 or less.

7. An article comprising a foam dispensing container and a foaming composition according to any one of claims 1 to 6 within the foam dispensing container.

8. The article according to claim 7, wherein the foam dispensing container is a non-gas type foam dispensing container.

9. The article according to claim 7 or 8, wherein the foam dispensing container is a pump foamer container, a squeeze foamer container, or a trigger spray container.

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