Multi-layer cleaning agent composition and its application method

Abstract

This invention relates to a multi-layer cleansing composition comprising the following components (A), (B), (C), and (D): (A) 0.0001% to 0.03% by mass of a lipophilic nonionic surfactant; (B) 0.05% to 2.2% by mass of a metal salt; (C) 3% to 35% by mass of a volatile hydrocarbon oil; and (D) 45.0% to 96.8% by mass of water. The multi-layer cleansing composition of this invention exhibits high cleansing power for makeup residue, leaving the skin feeling refreshed after cleansing and without tightness after drying.

Description

Technical Field

[0001] This invention relates to a multi-layer cleaning agent composition and its method of use. Background Technology

[0002] In recent years, the increased demand for long-lasting makeup has led to a rise in the use of long-lasting makeup products such as foundation and waterproof mascara that are less prone to smudging due to sweat and sebum. These makeup products are difficult to remove with water-based makeup removers; thorough removal requires the use of highly effective oil-based makeup removers.

[0003] Furthermore, oil-based makeup removers, due to their high oil content, can cause makeup to float off the skin when incorporated into long-lasting cosmetics, but there is a possibility that the oil contained in the makeup or makeup remover cannot be fully rinsed off when using water. To solve this problem, makeup removers with a multi-layered structure having both an aqueous layer and an oil layer have been developed (Patent Documents 1-4).

[0004] However, these makeup removers with multi-layered structures cannot be said to fully satisfy the requirements of cleansing power, rinsing ease, refreshing feeling, and tightness.

[0005] Existing technology

[0006] Patent Literature

[0007] Patent Document 1: Japanese Patent Application Publication No. 2005-89459

[0008] Patent Document 2: Japanese Patent Application Publication No. 2012-140364

[0009] Patent Document 3: Japanese Patent Application Publication No. 2010-280593

[0010] Patent Document 4: Japanese Patent Application Publication No. 2004-217641 Summary of the Invention

[0011] In order to solve the above problems, the inventors have discovered that by combining lipophilic nonionic surfactants, metal salts, volatile hydrocarbon oils and water in specific amounts, a multi-layer cleansing agent composition can be obtained that has high cleansing power when used as a makeup remover, leaves the skin feeling refreshed quickly after use, and does not feel tight after drying.

[0012] One object of the present invention is to provide a multi-layer cleaning agent composition comprising the following components (A), (B), (C) and (D):

[0013] (A) 0.0001% to 0.03% by mass of lipophilic nonionic surfactant;

[0014] (B) Metal salts 0.05% to 2.2% by mass;

[0015] (C) Volatile hydrocarbon oils 3%–35% by mass; and

[0016] (D) Water 45.0%–96.8% by mass.

[0017] Furthermore, another object of the present invention is to provide a method of using the multi-layer cleaning agent composition, comprising the following steps (i) to (ii):

[0018] Step (i): Agitate the multilayer cleaning agent composition to form an oil-in-water emulsion composition;

[0019] Step (ii): Impregnate the oil-in-water emulsion composition with the fibrous material and wipe the skin area that needs to be cleaned.

[0020] The multilayer cleaning agent composition of the present invention may include at least an aqueous layer and an oil-based layer, with the aqueous layer and oil-based layer separated vertically. During use, the multilayer cleaning agent composition is agitated, transforming it into an oil-in-water (O / W) emulsion composition, wherein the aqueous layer becomes the continuous phase (aqueous phase), and the oil-based layer becomes the dispersed phase (oil phase) dispersed within the continuous phase. After use, the oil-in-water emulsion composition quickly reverts to its original form as a multilayer cleaning agent composition.

[0021] The multilayer cleaning agent composition of the present invention may also include at least an aqueous layer and an emulsion layer, with the aqueous layer and emulsion layer separated vertically. During use, the multilayer cleaning agent composition is agitated, transforming it into an oil-in-water (O / W) emulsion composition, wherein the aqueous layer becomes the continuous phase (aqueous phase), and the oily components in the emulsion layer become the dispersed phase (oil phase) dispersed within the continuous phase. After use, the oil-in-water emulsion composition quickly reverts to its original form as a multilayer cleaning agent composition.

[0022] The multi-layer cleansing composition according to the present invention has a high cleaning power for makeup stains, and the skin can quickly feel refreshed after use, and the skin will not feel tight after drying. Attached Figure Description

[0023] Figure 1 The right column indicates the shade of residual foundation (right column) and residual mascara (left column), and the shades are divided into five levels, from 1 to 5. Detailed Implementation

[0024] [Multi-layer cleaning agent composition]

[0025] The multi-layer cleaning composition of the present invention contains ingredients (A), (B), (C), and (D).

[0026] <Ingredients (A)>

[0027] The component (A) of the present invention is a lipophilic nonionic surfactant. From the viewpoint of ensuring the structural stability of the oil-in-water emulsion composition during oscillation mixing, it is preferably a lipophilic nonionic surfactant with an IOB value of 0.1 to 1.0, and more preferably a branched lipophilic nonionic surfactant.

[0028] The "IOB value" is an abbreviation for Inorganic / Organic Balance, a value corresponding to the ratio of the inorganic value (I value) to the organic value (O value) of a compound. It is an indicator of the degree of polarity of an organic compound. Specifically, it is expressed as IOB value = inorganic value / organic value (i.e., I value / O value), where the "inorganic value" (I value) represents the hydrophilicity of the inorganic portion, and the "organic value" (O value) represents the lipophilicity of the organic portion.

[0029] Here, for example, the "inorganic value" (I value) and "organic value" (O value) are set to correspond to various atoms or functional groups in such a way that the "organic value" for one carbon atom in the molecule is 20 and the "inorganic value" for one hydroxyl group in the same molecule is 100. By calculating the "inorganic value" and "organic value" of all atoms and functional groups in the organic compound, the IOB value of the organic compound can be calculated (for example, see Yoshio Koda, "Organic Concept Map - Basics and Applications -", ​​pp. 11-17, Sankyo Publishing, 1984).

[0030] The component (A) of this invention, when used to agitate the multi-layer cleansing composition of this invention to mix the aqueous layer and the oil layer (or emulsion layer), helps to form a structurally stable oil-in-water emulsion composition and maintain this oil-in-water structure for an appropriate time. Therefore, during use, the multi-layer cleansing composition of this invention can remain on the skin as an oil-in-water emulsion composition for an appropriate time, thereby achieving high cleansing power.

[0031] As a component (A) of the present invention, examples include lipophilic nonionic surfactants such as polyol fatty acid esters, fatty acid glycerides, alkyl glycerol ethers, polyglycerol fatty acid esters, and polyethylene glycol (PEG) alkyl glycerides.

[0032] Specific examples of the aforementioned polyol fatty acid esters include: propylene glycol isostearate (IOB value: 0.4), propylene glycol oleate (IOB value: 0.39), ethylene glycol dioctanoate (IOB value: 0.35), diethylene glycol didecanoate (IOB value: 0.41), propylene glycol dihexanoate (IOB value: 0.4), ethylene palmitate (IOB value: 0.44), castor oil fatty acid methyl ester (IOB value: 0.43), ethylene glycol monooleate (IOB value: 0.41), ethylene glycol monostearate (IOB value: 0.4), propylene glycol monostearate (IOB value: 0.38), and sorbitan polyether-30 tetraoleate (IBO value: 0.91).

[0033] Specific examples of the aforementioned fatty acid glycerides include: dimyristic acid glyceride (IOB value: 0.35), dicocoate fatty acid glyceride (IOB value: 0.41), dilaurate glyceride (IOB value: 0.41), diacetic acid monostearate glyceride (IOB value: 0.36), sesquioleic acid glyceride (IOB value: 0.41), tri(caprylic acid·capric acid) glyceride (IOB value: 0.33), tri-2-ethylhexanoate glyceride (IOB value: 0.35), and tricaprylic acid glyceride (IOB value: 0.33).

[0034] Specific examples of the aforementioned alkyl glycerol ethers include, for example, octyl glycerol ether (IOB value: 0.5), decyl glycerol ether (IOB value: 1.0), lauryl glycerol ether (IOB value: 0.87), and isostearyl glycerol ether (IOB value: 0.55).

[0035] Specific examples of the aforementioned polyglycerol fatty acid esters include, for example, polyglycerol ricinoleate (IOB value: 0.62-1.0), polyglycerol-4 dilaurate (IOB value: 0.66), polyglycerol-6 dipalmitate (IOB value: 0.65), polyglycerol-2 diisostearate (IOB value: 0.52), and polyglycerol-2 isostearate (IOB value: 0.79).

[0036] Specific examples of the aforementioned polyethylene glycol alkyl glycerides include, for example, polyethylene glycol monolaurate (IOB value: 0.96) and polyethylene glycol monoisostearate (IOB value: 0.53).

[0037] Furthermore, as a lipophilic nonionic surfactant, it is preferably selected from one or more of polyol fatty acid esters, alkyl glycerol ethers, and polyglycerol fatty acid esters, and more preferably from one or more of sorbitol polyether-30 tetraoleate, isostearyl glycerol ether, polyglycerol-2 diisostearate, and polyglycerol-2 isostearate. Examples of their commercially available products include: "RHEODOL 430V" (IOB value: 0.91, manufactured by Kao Corporation) as sorbitol polyether-30 tetraoleate; "GE-IS(U)" (IOB value: 0.55, manufactured by Kao Corporation) as isostearyl glycerol ether; "COSMOL 42V" (IOB value: 0.52, manufactured by The Nisshin OilliO Group, Ltd.) as polyglycerol-2 diisostearate; and "COSMOL 41V" (IOB value: 0.79, manufactured by The Nisshin OilliO Group, Ltd.) as polyglycerol-2 isostearate.

[0038] Component (A) may be used in one or more combinations. From the viewpoint that the water-in-oil emulsion composition can rapidly separate into layers at an appropriate rate to revert to a multi-layer detergent composition and the resulting cleaning power, its content in the total composition is 0.0001% by mass or more, preferably 0.005% by mass or more, and 0.03% by mass or less, preferably 0.02% by mass or less, more preferably 0.01% by mass or less, further preferably 0.0001% by mass to 0.03% by mass, more preferably 0.005% by mass to 0.02% by mass, and even more preferably 0.005% by mass to 0.01% by mass.

[0039] <Ingredient (B)>

[0040] The component (B) of this invention is a metal salt, which is composed of metal ions and acid radical ions. Examples of metal ions include sodium ions, magnesium ions, calcium ions, zinc ions, aluminum ions, etc.; examples of acid radical ions include sulfate ions, hydrochloride ions, nitrate ions, phosphate ions, hydrogen phosphate ions, carbonate ions, etc.

[0041] As a form of metal salt, it can be one or more metal salts selected from sodium salts, magnesium salts, calcium salts, zinc salts, and aluminum salts. Specific examples of metal salts include magnesium sulfate, sodium dihydrogen phosphate, and aluminum sulfate, with magnesium sulfate being preferred.

[0042] Component (B) of this invention facilitates the rapid separation of the water-in-oil emulsion composition, formed by the aqueous layer and the oil layer (or emulsion layer), after the multi-layer cleansing composition of this invention is shaken and mixed. Therefore, when this water-in-oil emulsion composition is applied to the skin for cleansing, it can quickly separate into layers. During this process, the volatile hydrocarbon oils of component (C) rapidly coagulate and separate from the water-in-oil emulsion composition, and then evaporate from the skin, thereby achieving a refreshing feeling on the skin.

[0043] Component (B) may be used alone or in combination with two or more other components. From the viewpoint that the water-in-oil emulsion composition can quickly separate into layers and revert to a multi-layered cleanser composition, its content in the total composition is 0.05% by mass or more, preferably 0.2% by mass or more, more preferably 0.34% by mass or more, and even more preferably 0.55% by mass or more. From the viewpoint that the overall composition, obtained by suppressing the astringency from component (B), ensures a refreshing feeling when used on the skin, its content is 2.2% by mass or less, preferably 2.0% by mass or less, more preferably 1.0% by mass or less, and even more preferably 0.8% by mass or less. Furthermore, it is preferably 0.05% by mass to 2.2% by mass, more preferably 0.2% by mass to 2.0% by mass, more preferably 0.34% by mass to 1.0% by mass, even more preferably 0.55% by mass to 1.0% by mass, and even more preferably 0.55% by mass to 0.8% by mass.

[0044] Furthermore, from the viewpoint of ensuring a balance between the structural stability of the oil-in-water emulsion formed by oscillatory mixing and the rapid stratification of the oil-in-water emulsion, the mass ratio of component (A) to component (B) [component (A) / component (B)] is 0.005 to 0.21, preferably 0.005 to 0.041, and more preferably 0.014 to 0.029.

[0045] <Ingredient (C)>

[0046] The component (C) of this invention is a volatile hydrocarbon oil, which, when combined with component (A) used in this invention, forms an oily layer or emulsion layer in a multilayer cleaning agent composition.

[0047] The term "volatile hydrocarbon oil" refers to a hydrocarbon oil with a boiling point of 50°C to 260°C at room temperature. Since the "organic value" (O value) of an organic compound represents the lipophilic ability of the organic portion, and is determined based on the change in boiling point with each additional carbon atom, the O value range of the component (C) of this invention can be determined based on the average isothermal boiling point line of the organic compound, thereby determining its volatility (for example, see Wei Bin's translation, "Organic Concept Diagram and Its Application," pp. 12-15, 58-61, published by Light Industry Press, 1988). From the viewpoint of facilitating rapid evaporation from the skin and achieving a refreshing sensation, the volatile hydrocarbon oil of component (C) preferably has an O value of 100 or higher at 25°C, more preferably 180 or higher, and less than 320, further preferably 100 to 320, and more preferably 180 to 320.

[0048] Specific examples of this volatile hydrocarbon oil include light liquid isoparaffins such as isododecane and isohexadecane, and hydrogenated polyisobutylene. Among these, isododecane is preferred in terms of its high cleaning power and easy volatility, which allows for a refreshing feeling.

[0049] Commercially available products of this volatile hydrocarbon oil include, for example, "MARUKASOL R" (O value: 230, manufactured by Maruzen Petrochemical Co., Ltd.) as isododecane, "ISOPAR M FLUID" (O value: 310, manufactured by ExxonMobil Chemical Company) as isohexadecane, and "PARLEAM 4" (O value: 180-240, manufactured by The Nisshin OilliO Group, Ltd.) as hydrogenated polyisobutylene.

[0050] Component (C) may be used in one or more combinations. From the viewpoint of cleaning power, its content in the total composition is 3% by mass or more, preferably 5% by mass or more, and from the viewpoint of refreshing feeling, it is 35% by mass or less, preferably 25% by mass or less, and more preferably 3% to 35% by mass, more preferably 5% to 25% by mass.

[0051] <Ingredient (D)>

[0052] The component (D) of this invention is water. That is, the remaining portion other than the above-mentioned components (A), (B), (C), (E) and other components is component (D) water.

[0053] In the multi-layer cleaning agent composition of the present invention, the content of component (D) is preferably 45.0% by mass or more, more preferably 60% by mass or more, and even more preferably 93% by mass or more, from the viewpoint of containing other components besides water for use as a cleaning agent, preferably 96.8% by mass or less.

[0054] The preferred water is ion-exchange water, sterilized ion-exchange water, or distilled water.

[0055] <Ingredient (E)>

[0056] The multilayer cleaning agent composition of the present invention may further contain: (E) cellulose derivative polymers, which can further ensure the structural stability of the oil-in-water emulsion composition and improve cleaning power.

[0057] Examples of such cellulose derivative polymers include alkyl celluloses such as methylcellulose and ethylcellulose; and hydroxyalkyl celluloses such as hydroxyethylcellulose, hydroxypropylcellulose, and hydroxypropylmethylcellulose. Among these, hydroxyalkyl cellulose is preferred from the viewpoint of structural stability and cleaning power of the oil-in-water emulsion composition, and hydroxyethyl cellulose is more preferred.

[0058] Component (E) may be used in one or more combinations, and from the viewpoint of the structural stability of the oil-in-water emulsion composition, its content in the total composition is 0.01% by mass or more, preferably 0.05% by mass or more, and from the viewpoint of the separation rate of the oil-in-water emulsion composition, it is 1% by mass or less, preferably 0.5% by mass or less.

[0059] <Other Ingredients>

[0060] In the multi-layer cleaning agent composition of the present invention, in addition to the above-mentioned components, other components commonly used in cleaning agents may be added within a range that does not impair the purpose or effect of the present invention, such as: nonionic surfactants other than component (A) such as polyoxyethylene polyoxypropylene ether block copolymer (POLOXAMER), alkyl glucoside, etc.; solvents such as isopropanol and diethylene glycol monobutyl ether; humectants such as glycerin and sorbitol; viscosity modifiers, touch improvers, enzymes, pigments, fragrances, preservatives and mildew inhibitors, bactericides, humectants, colorants, anti-inflammatory agents, whitening agents, antiperspirants, ultraviolet absorbers, etc.

[0061] Specific examples of the aforementioned polyoxyethylene polyoxypropylene ether block copolymers include, for example, poloxamer 188, poloxamer 185, poloxamer 184, poloxamer 183, poloxamer 182, and poloxamer 181.

[0062] Specific examples of the aforementioned alkyl glucosides include, for example, alkyl glucosides such as decyl glucoside, lauryl glucoside, and cocoyl glucoside.

[0063] [Preparation of Multi-Layer Cleaning Agent Composition]

[0064] The multilayer cleaning composition of the present invention can be manufactured by uniformly mixing components (B), (D) and the above-mentioned optional suitable water-soluble co-components into an aqueous solution, and uniformly mixing components (A), components (C) and the above-mentioned optional suitable other oil-soluble co-components into an oil-based solution or emulsion, and then combining the aqueous solution with the oil-based solution or emulsion (layered into an aqueous layer; and an oil-based layer or emulsion layer).

[0065] The multi-layer cleaning agent composition of the present invention is in liquid form, wherein "liquid" means that its viscosity at 25°C is 20,000 mPa·s or less. The viscosity is measured using a type B viscometer (rotor No. 2, 30 rpm). Regarding the viscosity of the multi-layer cleaning agent composition of the present invention at 25°C, in terms of improving cleaning power, it is preferably 10,000 mPa·s or less, more preferably 1,000 mPa·s or less, and even more preferably 500 mPa·s or less.

[0066] [Instructions for use of multi-layer cleaning agent compositions]

[0067] The multi-layer cleansing composition of the present invention can be used, for example, by the following method: First, the multi-layer cleansing composition is shaken to form an oil-in-water emulsion; second, the oil-in-water emulsion is impregnated with a fibrous material and then wiped on the skin, or, taken by hand and applied directly to the skin, and then wiped on the skin with the fibrous material; then, after wiping, the skin is rinsed with water. Preferably, the method of impregnating the oil-in-water emulsion with a fibrous material and then wiping the skin is preferred.

[0068] Specifically, the preferred method of using the multi-layer cleaning agent composition of the present invention includes the following steps (i) to (ii):

[0069] Step (i): Agitate the multilayer cleaning agent composition to form an oil-in-water emulsion composition;

[0070] Step (ii): Impregnate the oil-in-water emulsion composition with the fibrous material and wipe the skin area that needs to be cleaned;

[0071] It may also include step (iii): rinsing the wiped skin area with water.

[0072] In the above step (i), there is no limitation on the oscillation. It can be shaken up and down and / or left and right by hand, as long as the conversion of the water-in-oil emulsion composition can be achieved.

[0073] In the above-described step (ii), the impregnation can be achieved by extruding the formed oil-in-water emulsion composition from, for example, a plastic squeeze bottle into a fibrous material, or by dripping it into a fibrous material using a dropper, so that the composition is impregnated in the material, and then wiping and cleaning is performed, thereby removing makeup and dirt from the skin surface and achieving a cleaning effect.

[0074] The fibrous material can be any form, such as sponge, paper towel, non-woven fabric, woven fabric, or fabric. Furthermore, from the viewpoint of ensuring cleaning power and a refreshing feel, the impregnation rate of the fibrous material is preferably 100% or more, more preferably 150% or more, and more preferably 600% or less, more preferably 400% or less, relative to the mass of the oil-in-water emulsion composition and the mass of the fibrous material in its unimpregnated (dry) state.

[0075] Furthermore, the fibrous material can be attached to a tool for wiping, or it can be held directly by hand for wiping. The wiping time is not limited, but is preferably 0.5 minutes or more, more preferably 1 minute or more, and most preferably 10 minutes or less.

[0076] The skin areas that need to be cleaned can be any skin areas on the body that have been covered with makeup, such as the face, neck, and hands, and need to be removed.

[0077] In the above step (iii), there is no limit to the rinsing time with water, but it is preferably less than 1 minute.

[0078] <Methods of the Invention>

[0079] The following examples illustrate aspects of the present invention. In these aspects, the matters set forth in the multi-layer cleaning composition of the present invention and the method of using the multi-layer cleaning composition may be suitably applied.

[0080] <1> A multi-layer cleaning agent composition comprising the following components (A), (B), (C), and (D):

[0081] (A) 0.0001% to 0.03% by mass of lipophilic nonionic surfactant;

[0082] (B) Metal salts 0.05% to 2.2% by mass;

[0083] (C) Volatile hydrocarbon oils 3%–35% by mass; and

[0084] (D) Water 45.0%–96.8% by mass.

[0085] <2> As mentioned above <1> The multi-layer cleaning agent composition, wherein component (A) is a lipophilic nonionic surfactant with an IOB value of 0.1 to 1.0.

[0086] <3> As mentioned above <1> or <2> The multilayer cleaning agent composition, wherein component (A) is a branched, lipophilic nonionic surfactant.

[0087] <4> As mentioned above <1> ~ <3> The multilayer cleaning composition according to any one of the following, wherein component (A) is one or more lipophilic nonionic surfactants selected from polyol fatty acid esters, fatty acid glycerides, alkyl glycerol ethers, polyglycerol fatty acid esters, and polyethylene glycol (PEG) alkyl glycerides.

[0088] <5> As mentioned above <1> ~ <4> The multi-layer cleaning composition according to any one of the following methods, wherein component (A) is selected from one or more of polyol fatty acid esters, alkyl glycerol ethers, and polyglycerol fatty acid esters.

[0089] <6> As mentioned above <1> ~ <5> The multi-layer cleaning composition according to any one of the following, wherein component (A) is selected from one or more of sorbitol polyether-30 tetraoleate, isostearyl glycerin ether, polyglycerol-2 diisostearate, and polyglycerol-2 isostearate.

[0090] <7> As mentioned above <1> ~ <6> In any one of the multi-layer cleaning agent compositions, the content of component (A) in the total composition is preferably 0.005% by mass or more, and preferably 0.02% by mass or less, more preferably 0.01% by mass or less, further preferably 0.005% by mass to 0.02% by mass, and even more preferably 0.005% by mass to 0.01% by mass.

[0091] <8> As mentioned above <1> ~ <7> The multi-layer cleaning composition according to any one of the following methods, wherein component (B) is one or more metal salts selected from sodium salts, magnesium salts, calcium salts, zinc salts, and aluminum salts.

[0092] <9> As mentioned above <1> ~ <8> The multi-layer cleaning composition according to any one of the following methods, wherein component (B) is selected from one or more of magnesium sulfate, sodium dihydrogen phosphate, and aluminum sulfate.

[0093] <10> As mentioned above <1> ~ <9> In any one of the multi-layer cleaning agent compositions, the content of component (B) in the total composition is preferably 0.2% by mass or more, more preferably 0.34% by mass or more, even more preferably 0.55% by mass or more, and preferably 2.0% by mass or less, more preferably 1.0% by mass or less, even more preferably 0.8% by mass or less. Furthermore, it is more preferably 0.2% to 2.0% by mass, even more preferably 0.55% to 1.0% by mass, and even more preferably 0.55% to 0.8% by mass.

[0094] <11> As mentioned above <1> ~ <10> The multi-layer cleaning composition according to any one of the following methods, wherein the mass ratio of component (A) to component (B) [component (A) / component (B)] is 0.005 to 0.21, preferably 0.005 to 0.041, and more preferably 0.014 to 0.029.

[0095] <12> As mentioned above <1> ~ <11> The multi-layer cleaning composition according to any one of the following, wherein component (C) is a volatile hydrocarbon oil with an O value of 100 or more at 25°C, preferably 180 or more, and 320 or less, further preferably 100 to 320, and more preferably 180 to 320.

[0096] <13> As mentioned above <1> ~ <12> The multi-layer cleaning composition according to any one of the following methods, wherein component (C) is selected from one or more of isododecane, isohexadecane, and hydrogenated polyisobutylene.

[0097] <14> As mentioned above <1> ~ <13> In any one of the multi-layer cleaning agent compositions, the content of component (C) in the total composition is preferably 5% by mass or more, and preferably 25% by mass or less, and more preferably 5% by mass to 25% by mass.

[0098] <15> As mentioned above <1> ~ <14> In any one of the multi-layer cleaning agent compositions, the content of component (D) in the total composition is preferably 45.0% by mass or more, more preferably 60% by mass or more, even more preferably 93% by mass or more, and preferably 96.8% by mass or less.

[0099] <16> As mentioned above <1> ~ <15> The multi-layer cleaning composition according to any one of the following, wherein it further comprises: (E) a cellulose derivative polymer.

[0100] <17> As mentioned above <16> The multi-layer cleaning agent composition wherein component (E) is selected from one or more of methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, and hydroxypropylmethylcellulose.

[0101] <18> As mentioned above <16> or <17> The multi-layer cleaning agent composition, wherein component (E) is hydroxyethyl cellulose.

[0102] <19> As mentioned above <16> ~ <18> The multi-layer cleaning composition according to any one of the following methods, wherein the content of component (E) in the total composition is 0.01% by mass or more, preferably 0.05% by mass or more, and 1% by mass or less, preferably 0.5% by mass or less.

[0103] <20> One of the above <1> ~ <19> The method of using any one of the multi-layer cleaning agent compositions, wherein the following steps (i) to (ii) are included:

[0104] Step (i): Agitate the multilayer cleaning agent composition to form an oil-in-water emulsion composition;

[0105] Step (ii): Impregnate the oil-in-water emulsion composition with the fibrous material and wipe the skin area that needs to be cleaned.

[0106] <21> As mentioned above <20> The method of using the multi-layer cleansing composition further includes step (iii): rinsing the rubbed skin area with water.

[0107] <22> As mentioned above <20> or <21> The method of using the multi-layer cleaning agent composition, wherein in step (ii) above, impregnation can be performed by extruding the formed oil-in-water emulsion composition from, for example, a plastic squeeze bottle onto a fibrous material, or by dripping it onto the fibrous material using a dropper, so that it is impregnated in the material, and then wiping and cleaning are performed.

[0108] <23> As mentioned above <20> ~ <22> The method of using the multi-layer cleaning agent composition according to any one of the following, wherein the fibrous material is selected from one or more of sponges, paper towels, non-woven fabrics, woven fabrics, and fabrics.

[0109] <24> As mentioned above <20> ~ <23> The method of using the multi-layer cleaning agent composition according to any one of the above steps (iii), wherein the rinsing time with water is less than 1 minute.

[0110] Example

[0111] The following describes embodiments and comparative examples. These embodiments are illustrative of the present invention and do not limit the scope of the invention.

[0112] Additionally, in cases where "%" is used alone below, it means "mass %" unless otherwise specified.

[0113] Examples 1-31, Comparative Examples 1-11

[0114] Evaluation methods

[0115] The multi-layer cleaning agent compositions shown in Tables 1-5 were prepared using the following formulations. These multi-layer cleaning agent compositions were agitated up and down 20 times over 25 seconds to form an oil-in-water emulsion composition, and then the following items were evaluated immediately. The results are shown in Tables 1-5.

[0116] [Regarding foundation cleansing power]

[0117] At 84cm 2 A foundation model was created by applying 0.07g of Revlon #370 foundation to artificial skin (PU leather with a pebbled texture) and then drying it at room temperature for 2 hours.

[0118] Subsequently, the multi-layer cleaning agent composition was agitated up and down to form an oil-in-water emulsion. 2g of this emulsion was poured onto a cotton pad (Unicharm) and wiped onto the aforementioned foundation mold nine times. Then, the degree of foundation residue was visually assessed. Figure 1 The color depth of the remaining foundation shown (level 1 to 5, a total of five levels) is scored according to the following criteria.

[0119] 5 stars: No foundation residue;

[0120] 4 points: Slight foundation residue;

[0121] 3 points; slight foundation residue.

[0122] 2 points: Obvious foundation residue;

[0123] 1 point: There is a lot of foundation residue.

[0124] A score of 3 indicates an acceptable level, which can be evaluated as a high level of cleansing power for foundation. A higher score indicates a higher level of cleansing power for foundation.

[0125] [Regarding the cleansing power of mascara]

[0126] First, apply 5mg of Maybelline mascara (black) to a circular area with a diameter of 12mm on a glass plate, and then let it dry for 2 hours to create a mascara model.

[0127] Subsequently, the multi-layer cleaning agent composition was agitated up and down to form an oil-in-water emulsion. 2g of this emulsion was poured onto a cotton pad (Unicharm) and used to wipe the mascara mold. Then, the degree of mascara residue was judged based on the number of wipings and visual inspection. Figure 1 The color intensity of the remaining mascara shown (level 1 to 5, a total of five levels) is scored according to the following criteria.

[0128] 5 points: No mascara residue remained after 5-10 wipes;

[0129] 4 points: After wiping 10 times, there was a slight residue of mascara;

[0130] 3 points: After wiping 10 times, a small amount of mascara residue remained;

[0131] 2 points: After wiping 10 times, a large amount of mascara residue remained;

[0132] 1 point: The mascara cannot be removed at all after 10 rubs.

[0133] A score of 3 indicates an acceptable level, which can be evaluated as a high level of cleaning power for mascara. A higher score indicates a higher level of cleaning power for mascara.

[0134] [Refreshing sensation (the time it takes to rinse until you feel your skin is completely clean and feels natural)]

[0135] The multi-layer cleaning agent composition was shaken up and down to form an oil-in-water emulsion. 2g of the oil-in-water emulsion was poured onto a cotton pad (Unicharm) and wiped on the inside of the subject's forearm.

[0136] After use, the subject was rinsed with tap water while rubbing the skin on the inside of their forearm with their fingers to feel the skin texture during the rinsing process until it felt clean and had a natural skin feel. The rinsing process was timed and scored according to the following criteria.

[0137] Three women were selected as subjects, and the average of their scores was taken as the final score.

[0138] 5 points: Rinsing time is within 30 seconds;

[0139] 4 points: Rinsing time exceeds 30 seconds but is within 40 seconds;

[0140] 3 points: Rinsing time exceeds 40 seconds but is within 50 seconds;

[0141] 2 points: Rinsing time exceeds 50 seconds but is within 60 seconds;

[0142] 1 point: Rinsing time exceeds 60 seconds.

[0143] A score of 3 is considered acceptable, indicating that the multi-layer cleansing composition provides a thorough and rapid feeling of freshness after use, and leaves the skin feeling natural after rinsing. A higher score indicates a stronger feeling of freshness.

[0144] [Layering speed]

[0145] The multi-layer cleaning agent composition was shaken up and down 20 times to make it an oil-in-water emulsion. Then, the multi-layer cleaning agent composition was visually observed to return to a layered state. The time was taken when the layered state showed a clear boundary line.

[0146] When a clear boundary line is observed within 150 seconds but exceeding 25 seconds, the multilayer detergent composition can be evaluated as exhibiting a balance between structural stability when transformed into an oil-in-water emulsion composition and rapid reversion to a multilayer detergent composition. Furthermore, the mass percentages of the formulation components in Tables 1-5 are based on the values ​​of the active ingredients. The formulation components used in the examples and comparative examples are also shown below.

[0147] <Ingredients (A)>

[0148] • Polyglycerol-2 diisostearate (IOB value: 0.52, trade name "COSMOL 42V", manufactured by The NisshinOilliO Group, Ltd., 100% active ingredient content)

[0149] • Polyglycerol-2 isostearate (IOB value: 0.79, trade name "COSMOL 41V", manufactured by The Nisshin OilliO Group, Ltd., 100% active ingredient content)

[0150] • Isostearyl glyceryl ether (IOB value: 0.55, trade name "GE-IS(U)", manufactured by Kao Corporation, 100% active ingredient content)

[0151] • Sorbitol polyether-30 tetraoleate (IOB value: 0.91, trade name "RHEODOL 430V", manufactured by Kao Corporation, 100% active ingredient content)

[0152] <Non-component (A)>

[0153] • Polyethylene glycol-6 caprylic / capric triglyceride (IOB value: 1.3, trade name "TEGOSOFT GMC6", manufactured by Evonik Nutrition & Care GmbH, 100% active ingredient content)

[0154] <Ingredient (B)>

[0155] Magnesium sulfate heptahydrate (trade name "magnesium sulfate heptahydrate", manufactured by Laizhou Laiyu Chemical Co., Ltd., with 100% active ingredient content)

[0156] • Sodium dihydrogen phosphate dihydrate, content calculated as sodium dihydrogen phosphate (JSQI) (trade name "SODIUM PHOSPHATE, MONOBASIC JSQI", manufactured by Taihei Chemical Industry Co., Ltd., active ingredient content is 100%)

[0157] • Aluminum sulfate (trade name "Aluminum Sulfate", manufactured by Sinopharm Chemical Reagent Co., Ltd., with 100% active ingredient content)

[0158] <Ingredient (C)>

[0159] • Isododecane (O value: 240, trade name "MARUKASOL R", manufactured by Maruzen Petrochemical Co., Ltd., active ingredient content is 100%)

[0160] • Hydrogenated polyisobutylene (O value: 260-320, trade name "PARLEAM 4", manufactured by The Nisshin OilliO Group, Ltd., active ingredient content is 100%)

[0161] • Isohexadecane (O value: 320, trade name "ISOPAR M FLUID", manufactured by ExxonMobil Chemical Company, 100% active ingredient content)

[0162] <Ingredient (E)>

[0163] • Hydroxyethyl cellulose (trade name "HEC DAICEL SE400", manufactured by FINECHEM Co., Ltd., 100% active ingredient content)

[0164]

[0165]

[0166] Table 5

[0167]

[0168] Table 1 shows the results of Examples 1-10 and Comparative Examples 1-6. It can be seen that when a specific ingredient (A) is added to the multilayer cleaning composition of the present invention, if the content of ingredient (A) is within the range of the present invention, the obtained multilayer cleaning composition has high cleaning power, excellent speed of achieving a refreshing feeling, and good layering speed.

[0169] Tables 2 and 3 show the comparison results between Examples 11-22 and Comparative Examples 7-11. It can be seen that when a specific component (B) is incorporated into the multilayer cleaning composition of the present invention, if the content of component (B) is within the range of the present invention, and / or the mass ratio (A) / (B) of component (A) to component (B) is in the range of 0.005 to 0.21, then the obtained multilayer cleaning composition has high cleaning power, excellent refreshing feeling, and good layering speed.

[0170] Table 4 shows the results of Examples 23-29. When a specific ingredient (C) is added to the multilayer cleaning composition of the present invention, if the content of ingredient (C) is within the range of the present invention, the obtained multilayer cleaning composition has high cleaning power, excellent refreshing feeling, and good layering speed.

[0171] Table 5 shows the results of Examples 30-31. It can be seen that when component (E) is further incorporated into the multilayer cleaning composition of the present invention, the obtained multilayer cleaning composition has high cleaning power, excellent refreshing feeling and good layering speed.

Claims

1. A multi-layer cleaning agent composition, wherein, It contains the following components (A), (B), (C), and (D): (A) 0.0001% to 0.03% by mass of one or two lipophilic nonionic surfactants selected from polyglycerol-2 diisostearate and isostearylglycerol ether; (B) Metal salts 0.24%–2.2% by mass; (C) Volatile hydrocarbon oils 3%–35% by mass; and (D) Water 45.0%–96.8% by mass The mass ratio of component (A) to component (B) (A) / (B) is 0.005 to 0.

041.

2. The multi-layer cleaning agent composition as claimed in claim 1, wherein, The mass ratio of component (A) to component (B) (A) / (B) is 0.014 to 0.

029.

3. The multi-layer cleaning agent composition as claimed in claim 1, wherein, The content of component (A) in the total composition is 0.005 to 0.02% by mass.

4. The multi-layer cleaning agent composition as claimed in claim 1, wherein, The content of component (A) in the total composition is 0.005 to 0.01% by mass.

5. The multi-layer cleaning agent composition as claimed in claim 1, wherein, Component (B) is one or more metal salts selected from sodium salts, magnesium salts, calcium salts, zinc salts, and aluminum salts.

6. The multi-layer cleaning agent composition of claim 1, wherein, Component (B) is selected from one or more of magnesium sulfate, sodium dihydrogen phosphate, and aluminum sulfate.

7. The multi-layer cleaning agent composition of claim 1, wherein, The content of component (B) in the total composition is 0.24–2.0% by mass.

8. The multi-layer cleaning agent composition of claim 1, wherein, The content of component (B) in the total composition is 0.55–1.0% by mass.

9. The multi-layer cleaning agent composition of claim 1, wherein, The content of component (B) in the total composition is 0.55–0.8% by mass.

10. The multi-layer cleaning agent composition of claim 1, wherein, The component (C) is a volatile hydrocarbon oil with an O value of 100 to 320.

11. The multi-layer cleaning agent composition of claim 1, wherein, The component (C) is a volatile hydrocarbon oil with an O value of 180 to 320.

12. The multi-layer cleaning agent composition of claim 1, wherein, Component (C) is selected from one or more of isododecane, isohexadecane, and hydrogenated polyisobutylene.

13. The multi-layer cleaning agent composition of claim 1, wherein, The content of component (C) in the total composition is 5-25% by mass.

14. The multi-layer cleaning agent composition of claim 1, wherein, The content of component (D) is 60% by mass or more.

15. The multi-layer cleaning agent composition of claim 1, wherein, The content of component (D) is 93% by mass or more.

16. The multi-layer cleaning agent composition of claim 1, wherein, It further contains component (E) cellulose derivative polymers.

17. The multi-layer cleaning composition of claim 16, wherein, Component (E) is selected from one or more of methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, and hydroxypropylmethylcellulose.

18. The multi-layer cleaning composition of claim 16, wherein, Component (E) is hydroxyethyl cellulose.

19. The multi-layer cleaning composition of claim 16, wherein, The content of component (E) in the total composition is more than 0.01% by mass and less than 1% by mass.

20. A method of using the multi-layer cleaning composition according to any one of claims 1 to 19, wherein, This includes the following processes (i) to (ii): Step (i): Agitate the multilayer cleaning agent composition to form an oil-in-water emulsion composition; Step (ii): Impregnate the oil-in-water emulsion composition with the fibrous material and wipe the skin area that needs to be cleaned.

21. The method of using the multi-layer cleaning composition as described in claim 20, wherein, The process further includes step (iii): rinsing the wiped skin area with water.

22. The method of using the multi-layer cleaning composition as described in claim 20, wherein, In step (ii), impregnation is achieved by extruding the formed oil-in-water emulsion composition from a plastic extruder into the fibrous material, or by dripping it into the fibrous material with a dropper, thereby impregnating the material, followed by wiping and cleaning.

23. The method of using the multi-layer cleaning composition as described in claim 20, wherein, The fibrous material is selected from one or more of the following: sponge, paper towel, non-woven fabric, woven fabric, and fabric woven cloth.

24. The method of using the multi-layer cleaning composition as described in claim 21, wherein, In step (iii), the rinsing time with water is less than 1 minute.

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