Body cleansing agent composition

Abstract

The present invention provides a body wash composition that exhibits good lathering and foam quality (creamyness), and minimizes hair stiffness during hair washing, even when surfactants other than fatty acid soaps are used as the main cleansing agent component. [Solution] The whole-body cleansing composition contains (A) 2.0 to 10.0% by mass of dipropylene glycol, (B) 0.05 to 1.0% by mass of N-acyl aspartate, (C) 2.0 to 6.0% by mass of N-acyl methyl taurate, and (D) 1.5 to 5.0% by mass of amidosulfobetaine type amphoteric surfactant.

Description

Technical Field

[0001] The present invention relates to a skin cleansing composition.

Background Art

[0002] A skin cleansing agent characterized by being filled in a non-gas type foam discharging container and used is discharged in a foamy state by being extruded from the container (Patent Documents 1 and 2). Therefore, it is excellent in convenience during use, and from the viewpoint of reducing the burden on the skin by washing the skin with the foamy cleansing agent, various proposals have been made not only for facial cleansers but also for body cleansing agents. For example, in the skin cleansing composition housed in these foam discharging containers, the content composition and air are mixed to form a foam by passing through a porous membrane inside the foam discharging container. A cleansing composition having a fatty acid soap as the main component of the cleansing agent can discharge excellent-quality foam, and thus is widely used as a facial cleanser or a body cleansing agent. (Patent Documents 3 and 4)

[0003] On the other hand, when a cleansing composition having a fatty acid soap as the main component is used as a hair cleansing agent, the hair becomes very sticky, and its use has been limited to applications as a skin cleansing agent. In recent years, proposals for a body cleansing agent using an amino acid-based surfactant with less hair stickiness during hair washing have also been actively made (Patent Document 5).

[0004] However, surfactants other than fatty acid soaps have a problem that the foam quality is inferior to that of fatty acid soaps. At present, there is a further need for proposals for a body cleansing composition having suitable foam quality for the purpose of washing hair and skin and sufficiently less hair stickiness during hair washing.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

[0006] The present invention has been made in view of the above circumstances, and aims to provide a whole-body cleansing composition that has good lathering and foam quality (creamyness), and causes less hair stiffness when washing hair, even when a surfactant other than fatty acid soap is used as the main component of the cleansing agent. [Means for solving the problem]

[0007] As a result of diligent research to achieve the objectives of the present invention, we have completed the present invention, which contains (A) dipropylene glycol, (B) N-acyl aspartate, (C) N-acyl methyl taurate, and (D) amide sulfobetaine type amphoteric surfactant, resulting in good foaming and foam quality (creamyness) and less hair stiffness during hair washing.

[0008] In other words, the whole-body cleansing composition of the present invention contains the following (A), (B), and (C). (A) Dipropylene glycol 2.0-10.0% by mass (B) N-Acyl aspartate 0.05~1.0% by mass (C) N-Acylmethyltaurine salt 2.0-6.0% by mass (D) Amidosulfobetaine type amphoteric surfactant 1.5-5.0% by mass [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a whole-body cleansing agent composition that has good foaming and foam quality (creamyness) and causes less hair stiffness when washing the hair. [Modes for carrying out the invention]

[0010] The embodiments of the present invention will be described in detail below, but the present invention is not limited to the embodiments described below. The present invention is not limited to each of the configurations described below, and various modifications are possible within the scope of the claims, and embodiments and examples obtained by appropriately combining the technical means disclosed in different embodiments and examples are also included in the technical scope of the present invention. Furthermore, unless otherwise specified in this specification, "A to B" representing a numerical range means "greater than or equal to A and less than or equal to B".

[0011] The body wash composition according to this embodiment contains (A) dipropylene glycol, (B) N-acyl aspartate, (C) N-acyl methyl taurate, and (D) an amidosulfobetaine type amphoteric surfactant.

[0012] <(A) Dipropylene glycol> The component (A) used in the whole-body cleansing composition according to this embodiment is dipropylene glycol.

[0013] (A) By incorporating ingredient (A), the squeaking of hair during hair washing can be suppressed. The amount of ingredient (A) is 2.0 to 10.0% by mass of the total mass of the body wash composition, considering its effect in suppressing hair squeaking during hair washing and its influence on foam quality. Hair squeaking during hair washing is suppressed. If the amount is 10% by mass or less, the foam quality will not become rough.

[0014] <(B)N-acyl aspartate> Component (B) used in the whole-body cleansing composition according to this embodiment is N-acyl aspartate. By incorporating component (B), it is possible to suppress skin stiffness after washing and to provide an effect that suppresses itching caused by dryness. The acyl group is preferably a fatty acid residue having 8 to 22 carbon atoms, and examples include a single acyl group such as lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, acyl groups derived from coconut oil fatty acids, beef tallow fatty acids, castor oil fatty acids, olive oil fatty acids, palm oil fatty acids, etc., or mixtures thereof. Examples of salts of N-acyl aspartate include alkali metal salts such as sodium salt and potassium salt, and lower alkanolamine salts, and sodium salt and potassium salt are preferred.

[0015] Specific examples of N-acyl aspartate used as component (B) in the body wash composition according to this embodiment include sodium lauroyl aspartate, sodium myristoyl aspartate, and sodium oleyl aspartate. In the body wash composition according to this embodiment, one of these N-acyl aspartates may be used alone, or two or more may be used in combination.

[0016] In the body wash composition according to this embodiment, the content of component (B) is 0.05 to 1.0% by mass relative to the total mass of the body wash composition. If the content of component (B) is 0.05% by mass or more, a fine foam quality can be achieved. Furthermore, if the content of component (B) is 1.0% by mass or less, hair squeaking during hair washing is suppressed. When two or more N-acyl asparagine salts are used in combination as component (B), the content of component (B) is the sum of the content of those N-acyl asparagine salts.

[0017] <(C)N-acylmethyltaurine salt> Component (C) used in the body cleansing agent composition according to the present embodiment is an N-acylmethyltaurine salt. By blending component (C), the foam quality becomes finer, thereby imparting good foam quality (elasticity). Such an acyl group is preferably a fatty acid residue having 8 to 22 carbon atoms, for example, a single acyl group such as lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, oleic acid, an acyl group derived from coconut oil fatty acid, beef tallow fatty acid, castor oil fatty acid, olive oil fatty acid, palm oil fatty acid, or a mixture thereof.

[0018] Specific examples of the N-acylmethyltaurine salt used as component (C) in the body cleansing agent composition according to the present embodiment include sodium lauroylmethyltaurine, sodium myristoyl methyltaurine, magnesium lauroylmethyltaurine, etc. In addition, in the body cleansing agent composition according to the present embodiment, these N-acylmethyltaurine salts may be used alone or in combination of two or more.

[0019] In the body cleansing agent composition according to the present embodiment, the content of component (C) is 2.0 to 6.0% by mass based on the total mass of the body cleansing agent composition. If the content of component (C) is 2.0% by mass or more, the foam can be made sufficiently fine. If the content of component (C) is 6.0% or less, the stability over time can be made good, and the generation of precipitates can be suppressed. When two or more N-acylmethyltaurine salts are used in combination as component (C), the content of component (C) is the total of the contents of those N-acylmethyltaurine salts.

[0020] <(D) Amidosulfobetaine type amphoteric surfactant> Component (D) used in the body cleansing agent composition according to the present embodiment is an amidosulfobetaine type amphoteric surfactant. By blending component (D), the foam quality can be made creamy, and furthermore, the feeling of skin tightness after washing can be further reduced.

[0021] In the body wash composition according to this embodiment, the content of component (D) is 1.5 to 5.0% by mass relative to the total mass of the body wash composition. If the content of component (D) is 1.5% by mass or more, a creamier foam can be obtained, and if it is 5.0% by mass or less, the slipperiness during rinsing can be suppressed.

[0022] The body wash composition according to this embodiment contains the above-mentioned components (A) to (D), resulting in a body wash composition that has good lathering and foam quality (creamyness) and less hair stiffness when washing hair. Furthermore, the body wash composition according to this embodiment contains the above-mentioned components (A) to (D), which suppresses the formation of precipitates even at low temperatures (for example, 5°C), resulting in excellent stability.

[0023] Furthermore, it is preferable that the whole-body cleansing composition according to this embodiment does not contain higher fatty acid salts. Higher fatty acid salts are obtained by saponifying or neutralizing higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, and coconut oil with alkaline agents such as sodium hydroxide, potassium hydroxide, monoethanolamine, and diethanolamine. When higher fatty acid salts are included, the hair becomes very stiff and unsuitable as a hair cleansing agent.

[0024] In addition to the components described above, the whole-body cleansing composition according to this embodiment may appropriately contain other components, such as anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants, powders (pigments, dyes, resins, etc.), physiologically active ingredients, antioxidants, metal ion chelating agents, preservatives, ultraviolet absorbers, fragrances, humectants, salts, solvents, pearlescent agents, neutralizing agents, insect repellents, enzymes, etc., as long as they do not impair the purpose of the present invention.

[0025] The above-mentioned anionic surfactants are not particularly limited, and examples include triethanolamine lauryl sulfate, ammonium lauryl sulfate, sodium lauryl ether sulfate, sodium polyoxyethylene lauryl ether sulfate, potassium polyoxyethylene coconut oil fatty acid amide ether sulfate, sodium lauryl phosphate, and sodium polyoxyethylene lauryl ether acetate. Anionic surfactants may be used individually or in combination of two or more.

[0026] The above amphoteric surfactants are not particularly limited, but examples include lauryldimethylaminoacetic acid betaine, sodium laurylaminodiacetate, sodium β-aminopropionate, and sodium N-lauroyl-N'-carboxymethyl-N'-hydroxyethylethylenediamine. Amphoteric surfactants may be used individually or in combination of two or more.

[0027] The above nonionic surfactants are not particularly limited, but examples include polyoxyethylene cetyl ether, sorbitan monostearate, polyoxyethylene sorbitan triisostearate, decyl glucoside, lauryl glucoside, polyoxyethylene hydrogenated castor oil, polyoxyethylene monoisostearate, polyoxyethylene glyceryl dioleate, coconut oil fatty acid diethanolamide, coconut oil fatty acid monoethanolamide, coconut oil fatty acid N-methylethanolamide, polyoxyethylene polyoxypropylene glycol, and polyethylene glycol monolaurate. Nonionic surfactants may be used individually or in combination of two or more.

[0028] Furthermore, examples of the above-mentioned powders include pigments such as Red No. 201, Yellow No. 4, Blue No. 1, and Black No. 401; lake pigments such as Yellow No. 4 Al Lake and Yellow No. 203 Ba Lake; polymers such as nylon powder, silk powder, silicone powder, cellulose powder, silicone elastomer spherical powder, and polyethylene powder; colored pigments such as yellow iron oxide, red iron oxide, chromium oxide, carbon black, ultramarine, and Prussian blue; white pigments such as zinc oxide and titanium dioxide; extender pigments such as talc, mica, sericite, and kaolin; pearl pigments such as titanium mica; metal salts such as barium sulfate, calcium carbonate, magnesium carbonate, and magnesium silicate; inorganic powders such as silica and alumina; bentonite, smectite, and boron nitride. There are no particular limitations on the shape of these powders (spherical, rod-shaped, needle-shaped, plate-shaped, irregularly shaped, flake-shaped, spindle-shaped, etc.).

[0029] The above-mentioned physiologically active ingredients include substances that provide some kind of physiological activity to the skin when applied to the skin. Examples include anti-inflammatory agents, anti-aging agents, UV protection agents, tightening agents, antioxidants, moisturizers, blood circulation promoters, antibacterial agents, disinfectants, drying agents, cooling agents, warming agents, vitamins, amino acids, wound healing promoters, irritation relievers, analgesics, cell activators, enzyme components, etc. The above-mentioned physiologically active ingredients include natural plant extracts, seaweed extracts, herbal medicine components, and compounds, but among these, natural plant extracts, seaweed extracts, and herbal medicine components are particularly preferred in terms of safety.

[0030] Examples of the above-mentioned natural plant extracts, seaweed extracts, and herbal medicine ingredients include, for example, Angelica keiskei extract, Hydrangea macrophylla extract, Althaea officinalis extract, Aloe vera extract, Apricot extract, Ginkgo biloba extract, Fennel extract, Oolong tea extract, Rosa multiflora extract, Scutellaria baicalensis extract, Phellodendron amurense extract, Hypericum perforatum extract, Nasturtium officinale extract, Orange extract, Dried seawater, Seaweed extract, Hydrolyzed wheat powder, Hydrolyzed silk, Chamomile extract, Carrot extract, Artemisia capillaris extract, Licorice extract, Arctium moniliforme extract, Kiwi extract, Cucumber extract, Gardenia extract, Sasa veitchii extract, Sophora flavescens extract, Walnut extract, Grapefruit extract, Chlorella extract, Mulberry extract, Black tea extract, Yeast extract, Collagen, Salvia extract, Soapwort extract, Hawthorn extract, Rehmannia glutinosa extract, Lithospermum erythrorhizon extract, Perilla frutescens extract, and Cinnamomum erythrorhizon extract. Noki extract, peony extract, birch extract, horsetail extract, ivy extract, hawthorn extract, elderberry extract, yarrow extract, peppermint extract, sage extract, Cnidium officinale extract, Swertia japonica extract, soybean extract, jujube extract, thyme extract, tea extract, clove extract, citrus peel extract, angelica extract, peach kernel extract, Houttuynia cordata extract, tomato extract, natto extract, carrot extract, garlic extract, Noki extract Examples of extracts include rose extract, honey, witch hazel extract, Isodon japonicus extract, bisabolol, loquat extract, Poria cocos extract, propolis, loofah extract, peppermint extract, linden extract, hop extract, Madonna lily flower extract, horse chestnut extract, soapberry extract, lemon balm extract, peach extract, saxifrage extract, yuzu extract, mugwort extract, lavender extract, lemon extract, astragalus extract, rosemary extract, royal jelly extract, and others.

[0031] In addition to the above-mentioned natural plant extracts, seaweed extracts, and herbal medicine components, other components include, for example, biopolymers such as deoxyribonucleic acid, collagen, elastin, chitin, chitosan, and hydrolyzed eggshell membrane; moisturizing components such as amino acids, sodium lactate, urea, sodium pyrrolidone carboxylate, betaine, and whey; oily components such as sphingolipids, ceramides, cholesterol, cholesterol derivatives, and phospholipids; anti-inflammatory agents such as ε-aminocaproic acid, glycyrrhizic acid, β-glycyrrhetinic acid, lysozyme chloride, guaiazulene, and hydrocortisone; vitamins (A, B2, B6, C, D, E); calcium pantothenate; biotin; nicotinamide; and vitamin C. Examples include vitamins such as esters, active ingredients such as allantoin, diisopropylamine dichloroacetate, and 4-aminomethylcyclohexanecarboxylic acid, antioxidants such as tocopherol, carotenoids, flavonoids, tannins, lignans, and saponins, cell activators such as α-hydroxy acids and β-hydroxy acids, blood circulation promoters such as γ-oryzanol and vitamin E derivatives, disinfectants such as isopropylmethylphenol, triclosan, hinokitiol, and benzalkonium chloride, cooling agents such as l-menthol and peppermint oil, and wound healing agents such as retinol and retinol derivatives.

[0032] As described above, the body wash composition according to this embodiment can produce good foam and foam quality (creamyness). Therefore, it is preferable to use the body wash composition according to this embodiment by filling it into a foam dispensing container. In this specification, a foam dispensing container refers to a non-aerosol type foam dispensing container other than an aerosol type foam dispensing container that uses a propellant, and is a container that can dispense foam by mixing the skin wash product filled in the dispensing container with air and passing it through a porous membrane. Specifically, pump foamers and squeeze foamers can be given as examples.

[0033] Furthermore, one or more porous membranes are provided inside the discharge container, and the number of pores in the membrane is not particularly limited, but from the viewpoint of producing a fine foam texture, 100 to 400 mesh is preferred, and 200 to 300 mesh is more preferred.

[0034] The body cleansing composition according to this embodiment can be manufactured by conventional methods and can be suitably used as a cleansing agent for facial washes, makeup removers, body shampoos, hair shampoos, hand soaps, shaving products, massage products, and the like. [Examples]

[0035] Next, the whole-body cleansing composition according to this embodiment will be described in detail with reference to examples, but the present invention is not limited thereto. Note that the content in all the following examples and comparative examples is in mass%.

[0036] Examples 1-9 and Comparative Examples 1-13 Prepare a whole-body cleansing agent composition with the composition shown in Tables 1 and 2 according to a conventional method, and dispense it into a 200 mL bottle. A non-aerosol foam body wash was obtained by filling a transformer-type container (using two 200-mesh filters) with 200 mL of the mixture. The obtained body wash was evaluated as described below, and the results are shown in the table.

[0037] (1) No hair squeaks or stiffness when washing hair. Ten panelists each dispensed one pump of the product from a pump-foamer type container at room temperature, washed their hair with it, rinsed it with hot water, and then performed a sensory evaluation of the squeaky feeling during rinsing on a four-point scale according to the following criteria.

[0038] 4 points: No creaking sensation. 3 points: There is a slight creaking sound, but it is not noticeable during use. 2 points: There is a noticeable creaking sound, which is a concern during use. 1 point: It creaks and is unsuitable for use.

[0039] The average of the panelists' evaluation results was calculated and judged according to the following criteria. ◎: Average score of 4.5 or higher ○: Average score is 3.5 or higher △: Average score is 2.5 or higher ×: Average score is less than 2.5

[0040] (2) Foam quality (creamyness) Examples and Comparative Examples Body wash compositions with the compositions shown in Tables 1 and 2 were prepared by conventional methods. At room temperature, 10 panelists each washed and rinsed their skin using the example and comparative example cleansing compositions. Sensory evaluations were conducted on the foam quality (elasticity) during use and the squeaking sensation during hair washing. The evaluation criteria were as follows.

[0041] [Foam quality (elasticity) during use] 4 points: The bubbles are very fine and very elastic. 3 points: The bubbles are slightly fine and have a slightly high elasticity. Points 2: The foam is somewhat coarse and lacks elasticity. 1 point: The foam is very coarse and lacks elasticity.

[0042] The average of the panelists' evaluation results was calculated and judged according to the following criteria. ◎: Average score of 4.5 or higher ○: Average score is 3.5 or higher △: Average score is 2.5 or higher ×: Average score is less than 2.5

[0043] [Temporal stability at low temperatures] The bulk material was left to stand at 5°C, and its condition was observed after one week. It was then evaluated according to the following criteria. ◎: No change ○: Liquidity decreases ×: Precipitates are observed.

[0044] [Dispensing from a foaming container] At room temperature, the pump-type foamer container was pressed once to check whether the contents could be dispensed. ○: Discharge possible ×: Unable to discharge

[0045] [Table 1]

[0046] [Table 2]

[0047] As is clear from Tables 1 and 2, all of the body wash compositions in Examples 1 to 9 exhibited excellent performance. On the other hand, Comparative Examples 1 to 12 were inferior in terms of hair manageability, foam quality (foam elasticity), long-term stability, or dispensability.

[0048] Below, other formulation examples of the body wash composition according to this embodiment are given as Example 10. For these examples of body wash compositions, the above-mentioned items regarding the feel during rinsing, the amount of foam during use, and the foam quality (foam elasticity) were also evaluated.

[0049] A facial cleanser composition with the above composition was prepared by conventional methods, and its foam quality (elasticity) and the squeaking sensation during hair washing were evaluated. Similar to the examples, all properties were excellent, and favorable results were obtained.

[0050] Example 10 Body wash composition Mass% (1) Sodium lauroyl aspartate 0.5 (2) Cocoyl methyl taurate Mg 4.0 (3) Sodium lauroyl methylalanine 8.0 (4) Lauryl hydroxysultaine 4.0 (5) Dimethyldiallylammonium chloride / acrylamide copolymer 0.5 (6) Shea butter 0.5 (7) Rose extract 0.5 (8) Sapindus trifoliatus fruit extract 0.5 (9) Peach leaf extract 0.5 (10) Aloe vera leaf extract 0.5 (11) N-acetylglucosamine 0.5 (12) Rosa Canina Fruit Extract 0.5 (13) Dipotassium glycyrrhizinate 0.1 (14) Disodium edetate 0.5 (15) Phenoxyethanol 0.5 (16) DPG 5.0 (17)Fragrance 0.2 (18) Purified water remainder

[0051] A body wash composition with the above composition was prepared by conventional methods, and its foam quality (elasticity) and the squeaking sensation during hair washing were evaluated. Similar to the examples, all properties were excellent, and favorable results were obtained.

Claims

[Claim 1] A body wash composition containing the following (A), (B), (C), and (D). (A) Dipropylene glycol 2.0 to 10.0% by mass (B) N-acyl aspartate 0.05-1.0% by mass (C) N-acylmethyltaurine salt 2.0-6.0% by mass (D) Amidosulfobetaine type amphoteric surfactant 1.5 to 5.0% by mass

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