Oil balm cleansing cosmetic composition

Abstract

The present invention provides an oil balm cleansing cosmetic composition containing (A) oil and (B) a gelling agent for oil, wherein component (B) contains (B1) a fatty acid ester of a polysaccharide including a fatty acid ester of inulin, and (B2) a multi-chain multi-hydrophilic group type compound having a structure in which two molecules of N-acylamino acid salt are linked to lysine.

Description

[Technical Field]

[0001] The present invention relates to an oil balm cleansing cosmetic composition. [Background technology]

[0002] Cleansing cosmetic compositions for removing makeup include aqueous cleansing gels that utilize the cleansing action of surfactants, cream-like emulsion-type cleansing cosmetic compositions, and cleansing oils that utilize the dissolving action of oily components in makeup. Three types of cleansing oils are used, in order of decreasing viscosity: oil type (liquid), gel type (gel-like), and oil balm type (hard gel-like).

[0003] It is difficult for a cleansing cosmetic composition to achieve both high cleansing performance and no oil remaining on the skin after rinsing. However, a cleansing oil gel containing a difatty acid acyl glutamic acid lysine salt with gelling ability is known to solve this problem (JP 2013-1698 A). Summary of the Invention [Problem to be solved by the invention]

[0004] However, the present inventors have found that when an electrolyte is added to a gel-like oily cleansing cosmetic composition using difatty acid acyl glutamic acid lysine salt, stability problems arise, such as the oil leaching out of the gel and, in some cases, phase separation.

[0005] Cosmetics for practical use usually contain electrolytes such as preservatives, colorants, and active ingredients. However, compositions containing difatty acid acyl glutamic acid lysine salts cannot maintain long-term stability even when containing such electrolytes, preventing their practical use.

[0006] Therefore, an object of the present invention is to provide an oil-based cleansing cosmetic composition that not only has excellent cleansing properties, but also has excellent stability even when an electrolyte is contained, and further, spreads easily and blends well with makeup. [Means for solving the problem]

[0007] The present invention provides an oil balm cleansing cosmetic composition containing (A) oil and (B) an oil gelling agent, wherein the oil balm cleansing composition contains, as component (B), (B1) a polysaccharide fatty acid ester including an inulin fatty acid ester, and (B2) a multi-chain multi-hydrophilic group type compound having a structure in which two molecules of N-acylamino acid salt are linked by lysine.

[0008] Because the oil balm cleansing cosmetic composition of the present invention has the above-mentioned composition, it is possible to increase the oil content and exhibit high cleansing properties even against makeup such as waterproof mascara, etc. Furthermore, because the components (B1) and (B2) are combined, the composition exhibits good stability even when an electrolyte is added.

[0009] The oil balm cleansing cosmetic composition of the present invention also spreads easily and blends well with makeup. Furthermore, it has a refreshing feel and is not sticky. The blendability of a cleansing cosmetic composition during massage is an important property in evaluating its cleansing performance.

[0010] The oil balm cleansing cosmetic composition of the present invention may further contain at least one optional ingredient (C) selected from the group consisting of preservatives, moisturizers, colorants, and active ingredients, and at least one of these optional ingredients may be an electrolyte.

[0011] The above-mentioned optional ingredients are preferably contained in the product, and since the inclusion of these ingredients maintains long-term stability, it is possible to provide an oil balm cleansing cosmetic composition suitable for practical use. Furthermore, since a variety of ingredients can be contained, the applicable uses are expanded, and various product designs that meet user preferences become possible.

[0012] The polysaccharide fatty acid ester (B1) may further contain a linear fatty acid ester of dextrin. The polysaccharide fatty acid ester is preferably an ester of a polysaccharide with one or more saturated fatty acids having 12 to 22 carbon atoms.

[0013] When a branched fatty acid ester is used as the fatty acid ester of dextrin, stability (especially stability at high temperatures) cannot be ensured, so a straight-chain fatty acid ester must be used. Although component (B1) is sometimes classified as a surfactant, in the present invention, component (B1) is considered as a gelling agent for oil and is distinguished from ordinary surfactants.

[0014] The multi-chain multi-hydrophilic group type compound (B2) is preferably a compound represented by the following general formula (1). [ka] [where, X 1 , X 2 and X 3 are each independently an alkali metal atom, R 1 and R 2 One of the groups is a single bond, the other is a methylene group or an ethylene group, R 3 and R 4 one of the groups represents a single bond, the other represents a methylene group or an ethylene group, and n and m each independently represent an integer of 11 to 21.]

[0015] (R 1 and R 2 ) and (R 3 and R 4), one is a single bond and the other is a methylene group or an ethylene group, so that the compound (B2) represented by general formula (1) has a structure in which N-acyl glutamate or N-acylaspartate is linked by lysine.

[0016] By combining an oil gelling agent having the above structure, i.e., a structure in which amino acid surfactants are linked via a spacer (lysine residue) (sometimes called a gemini structure), with component (B1), not only is oil exudation prevented, but desirable properties for a cleansing agent, such as excellent spreadability, a refreshing feel, and anti-stickiness, are exhibited. Note that component (B2) is sometimes classified as a surfactant, but in the present invention, component (B2) is considered as an oil gelling agent and is considered to be distinct from ordinary surfactants.

[0017] (C) Polyol can be contained as a moisturizing agent, which is one of the optional components. However, since it has been found that using a diol in the present invention makes it difficult to form a gel, it is preferable to use a polyol having three or more hydroxyl groups per molecule. In other words, by using a polyol having three or more hydroxyl groups per molecule, it becomes easy to achieve a viscosity high enough for an oil balm, and the moisturizing effect, which is its original function, can also be exerted.

[0018] The present invention also provides a cosmetic method for the care and / or make-up of keratinous materials, comprising the application of a cleansing oil balm onto the keratinous materials, in particular onto the skin.

[0019] The present invention further provides a cosmetic method in which an oil balm cleanser provides high cleansing performance and good spreadability to the keratinous material to which it is applied. [Effects of the Invention]

[0020] According to the present invention, it is possible to provide an oil balm cleansing cosmetic composition that not only has excellent cleansing performance, but also has excellent stability even when an electrolyte is contained, and further, has good spreadability and excellent slipperiness when blended with makeup. DETAILED DESCRIPTION OF THE INVENTION

[0021] The oil balm cleanser according to the embodiment corresponds to an oil balm type among oil-based cleansing agents. Here, oil balm type refers to one with a viscosity of 50,000 cps (50 Pa·s) or more at 25°C. Viscosity is measured using a B-type rotational viscometer (for example, Rheolab QC manufactured by Anton Parr) by inserting an ancre-type spindle into the oil balm cleanser housed in a container with an inner diameter of 4.5 cm and maintained at 25°C, and measuring at a rotation speed of 10 rpm. The viscosity at 25°C is preferably 50,000 to 150,000 mPa·s.

[0022] Cleansing Oil (A) The oil balm cleansing cosmetic composition contains oil (A), and any oil that can be used as component (A) can be used without limitation as long as it is usable in cosmetic cleansing agents.

[0023] In certain embodiments, cleansing oil (A) is selected from the group consisting of oil-based cleansing oil, ester oil-based cleansing oil, mineral oil-based cleansing oil and their combinations.As oil-based cleansing oil, olive oil, rapeseed oil, camellia oil, sunflower seed oil, macadamia nut oil, corn oil, rice bran oil, avocado oil, meadowfoam oil can be exemplified, and as ester oil-based cleansing oil, can be exemplified isononyl isononanoate, ethylhexyl palmitate, cetyl ethylhexanoate, isopropyl palmitate, isopropyl myristate, triethylhexanoin, tridecyl isononanoate.As mineral oil-based cleansing oil, can be exemplified mineral oil, isohexadecane, hydrogenated polyisobutene etc.

[0024] Gelling agent for oil (B) The oil balm cleansing cosmetic composition contains (B) an oil gelling agent, and the (B) component contains (B1) a fatty acid ester of a polysaccharide including a fatty acid ester of inulin, and (B2) a multi-chain multi-hydrophilic group type compound having a structure in which two molecules of N-acylamino acid salt are linked to lysine.

[0025] Fatty acid ester (B1) Component (B1) contains an inulin fatty acid ester as an essential component, and may further contain a straight-chain dextrin fatty acid ester so long as it contains this component. That is, component (B1) may consist of only an inulin fatty acid ester, or may contain both an inulin fatty acid ester and a straight-chain dextrin fatty acid ester.

[0026] One of the important characteristics of an oil balm cleansing cosmetic composition is its good spreadability, i.e., its compatibility with makeup. However, this characteristic is insufficient when only a linear dextrin fatty acid ester is contained as the fatty acid ester of the polysaccharide. On the other hand, another important characteristic of an oil balm cleansing cosmetic composition is the "breaking sensation" that occurs when the oil balm changes to oil during massage. This characteristic is slightly better with linear dextrin fatty acid esters than with inulin fatty acid esters. Therefore, to achieve both good spreadability and a "breaking sensation," it is preferable to use a combination of an inulin fatty acid ester and a linear dextrin fatty acid ester rather than an inulin fatty acid ester alone. However, an inulin fatty acid ester alone is sufficient for practical use.

[0027] When combining a fatty acid ester of inulin with a linear fatty acid ester of dextrin, the latter is preferably 50 to 500 parts by weight per 100 parts by weight of the former, and more preferably 100 to 200 parts by weight per 100 parts by weight of the former. In a specific embodiment, component (B) is present in the composition in a total amount of 0.5 to 5%, preferably 1 to 4%, based on the total weight of the composition. Of the (B) components, it is preferred that component (B1) be present in an amount of 0.5 to 2% by weight and component (B2) be present in an amount of 0.5 to 2% by weight based on the total weight of the composition.

[0028] Examples of fatty acid esters of inulin include esters of inulin with one or more saturated fatty acids having 12 to 22 carbon atoms. The saturated fatty acid preferably has 12 to 18 carbon atoms, and more preferred saturated fatty acids are myristic acid having 14 carbon atoms, palmitic acid having 16 carbon atoms, and stearic acid having 18 carbon atoms. The fatty acid ester of inulin is preferably a linear fatty acid ester of inulin.

[0029] The fatty acid ester of inulin can be represented by the following general formula (2). In the formula, A is an acyl group having 12 to 22 carbon atoms, and multiple As may be the same or different. q is an integer of 1 or greater. Some of As may be hydrogen atoms. Suitable As include a myristyl group having 14 carbon atoms, a palmitoyl group having 16 carbon atoms, and a stearoyl group having 18 carbon atoms. [ka]

[0030] Examples of the fatty acid ester of dextrin include esters of dextrin with one or more saturated straight-chain fatty acids having 12 to 22 carbon atoms. The saturated straight-chain fatty acid preferably has 12 to 18 carbon atoms, and more preferred saturated fatty acids are myristic acid (having 14 carbon atoms), palmitic acid (having 16 carbon atoms), and stearic acid (having 18 carbon atoms).

[0031] Dextrin fatty acid esters can be represented by the following general formula (3a) or (3b): In the formula, B is an acyl group having 12 to 22 carbon atoms, and multiple Bs may be the same or different. Some of Bs may be hydrogen atoms. Suitable Bs include a myristyl group having 14 carbon atoms, a palmitoyl group having 16 carbon atoms, and a stearoyl group having 18 carbon atoms. [ka]

[0032] In certain preferred embodiments, the oil balm cleansing cosmetic composition comprises, as component (B1), stearoyl inulin, alone or in combination with dextrin palmitate.

[0033] Multi-chain polyhydrophilic group-containing compound (B2) (B2) A multi-chain multi-hydrophilic group type compound having a structure in which two molecules of an N-acylamino acid salt are linked by a lysine, which is a component other than component (B1) in (B) an oil gelling agent, can be represented, for example, by general formula (1). [ka] In the formula, X 1 , X 2 and X 3 are each independently an alkali metal atom, and R 1 and R 2 is a single bond and the other is a methylene group or an ethylene group, and R 3 and R 4 One of the groups is a single bond, and the other is a methylene group or an ethylene group, and n and m each independently represent an integer of 11 to 21. In certain embodiments, X 1 , X 2 and X 3 are each independently an alkali metal atom, preferably a sodium atom or a potassium atom, more preferably a sodium atom. 1 , X 2 and X 3are preferably the same alkali metal atom. n and m are preferably each independently an integer of 11 to 17, and more preferably 13, 15 or 17. n and m are preferably the same integer.

[0034] The compound (B2) represented by the general formula (1) can be represented by, for example, the following general formulas (1a) to (1d): X 1 , X 2 , X 3 The meanings and preferred examples of n and m are the same as those described above. 1 , X 2 and X 3 When both are sodium atoms and both n and m are 11, the compounds represented by the general formulae (1a) to (1d) correspond to sodium dilauroyl glutamate lysine, which is the preferred component (B2). [ka]

[0035] The compound (B2) represented by the general formula (1) can be further represented by the following general formulas (1e) to (1h): X 1 , X 2 , X 3 The meanings and preferred examples of n and m are the same as those described above. 1 , X 2 and X 3 When both are sodium atoms and both n and m are 11, the compounds represented by the general formulae (1e) to (1f) correspond to sodium dilauroyl aspartate lysine. [ka]

[0036] The component (B2) preferably contains at least one of dilauroyl glutamic acid lysine salt and dilauroyl aspartic acid lysine salt, and more preferably dilauroyl glutamic acid lysine salt (particularly sodium salt). In certain embodiments, component (B2) is present in the composition in an amount ranging from 0.2 to 3%, preferably from 0.5 to 2%, of the total weight of the composition. In certain preferred embodiments, the oil balm cleansing cosmetic composition contains stearoyl inulin, dextrin palmitate, and dilauroyl glutamic acid lysine sodium salt.

[0037] Optional component (C) The oil balm cleansing cosmetic composition may further contain at least one optional component (C) selected from the group consisting of preservatives, moisturizers, colorants, and active ingredients, and in this case, at least one of these may be an electrolyte. Here, the electrolyte refers to a substance that ionizes into cations and anions when dissolved in a solvent, and in the present invention, a substance having an acid group such as carboxylic acid, sulfonic acid, or phosphoric acid, or a salt thereof, is preferred. The salt includes sodium salt, potassium salt, calcium salt, barium salt, strontium salt, and ammonium salt.

[0038] Preservatives used as component (C) include materials such as antiseptics and antioxidants, and examples thereof include chlorhexidine digluconate, hydroxyacetophenone, ethylhexylglycerin, phenethyl alcohol, capryl glycol, sodium benzoate, isopropylmethylphenol, ethyllabene, benzalkonium chloride, glyceryl caprylate, glycerin fatty acid esters, chlorphenesin, salicylic acid, potassium sorbate, sodium dehydroacetate, ethyl parahydroxybenzoate, butyl parahydroxybenzoate, propyl parahydroxybenzoate, methyl parahydroxybenzoate, bisabolol, hinokitiol, phenylethyl alcohol, phenethyl alcohol, phenoxyethanol, butylparaben, propylparaben, benzalkonium chloride, methylisothiazolinone, methylchloroisothiazolinone, and methylparaben.

[0039] Examples of moisturizing agents used as component (C) include glycerin, glucitol (sorbitol), octanediol, hexanediol, pentanediol, butylene glycol, polyethylene glycol, amino acids such as phenylalanine and leucine, amino acid salts such as histidine hydrochloride and lysine hydrochloride, sugars, and plant extracts such as aloe extract. To enhance gelling ability, it is preferable to use a polyol having three or more hydroxyl groups per molecule as the moisturizing agent, and more preferably a polyol having 3 to 6 hydroxyl groups per molecule.

[0040] The colorant used as component (C) can be any of inorganic pigments, organic synthetic dyes, and natural dyes. Examples of organic synthetic dyes include FD&C Red No. 4, FD&C Yellow No. 5, FD&C Yellow No. 6, FD&C Blue No. 1, and FD&C Blue No. 2.

[0041] The active ingredient used as component (C) includes ingredients that have cosmetic effects such as skin roughness prevention and wrinkle prevention. Examples of such active ingredients include fat-soluble vitamins such as vitamin A (e.g., retinol, retinol palmitate, or retinol acetate), vitamin D (e.g., ergocalciferol or cholecalciferol), vitamin E (e.g., tocopherol or tocotrienol), dl-camphor, l-menthol, glycyrrhizinic acid, dipotassium glycyrrhizinate, salicylic acid, urea, and hinokitiol. The active ingredient may also function as a pigment, such as carotenoids (e.g., astaxanthin, lycopene, or fucoxanthin).

[0042] Any of the components listed above as component (C) can be contained in the oil balm cleansing cosmetic composition of the present invention, but even when a component equivalent to an electrolyte is contained, the exudation of oil is prevented while maintaining sufficient cleansing properties and good spreadability.

[0043] The component (C) may also contain preservatives, moisturizers, colorants, and ingredients other than the active ingredient, such as surfactants (anionic surfactants, cationic surfactants, nonionic surfactants, etc.), fragrances, water, solvents, etc.

[0044] In a specific embodiment, the content of component (A) in the oil balm cleansing cosmetic composition can be 60 to 90 wt%, preferably 70 to 90 wt%, and the content of component (B) can be 0.5 to 5 wt%, preferably 1 to 4 wt%. Of the components (B), component (B1) is preferably 0.5 to 2 wt%, and component (B2) is preferably 0.5 to 2 wt%. The total content of component (C) is preferably 0.8 to 3.0 wt%.

[0045] The oil balm cleansing cosmetic composition containing the above-mentioned optional ingredients can be produced, for example, by the following production method. First, component (B2) is mixed uniformly with water, a preservative, and a colorant while heating. Meanwhile, component (A), component (B1), and a surfactant are mixed uniformly while heating. Then, both mixtures are mixed uniformly at a predetermined mixing speed, and finally, a fragrance is added.

[0046] The oil balm cleansing cosmetic composition can be stored in a sealed container, such as a tube, bottle, or can, and is preferably stored indoors or in a cool, dark place. [Example]

[0047] The present invention will be described below with reference to examples, but the present invention is not limited to the following examples.

[0048] Phase 1 in Table 1 was mixed at 40°C until the bulk was uniform. Phase 2 cleansing agent (oil) was heated to 80°C, and the surfactant and oil gelling agent were dispersed, followed by mixing until the bulk was uniform. Phase 2 was added to Phase 1 at a rate of 5% / min, and mixing continued for 20 minutes after the addition of Phase 2. After confirming that the bulk was a homogeneous gel, cooling to room temperature was initiated. Phase 3 was then added and mixed until the bulk was uniform, yielding the oil balm cleansing cosmetic compositions of the Examples and Comparative Examples. The oil balm cleansing cosmetic compositions of the Examples and Comparative Examples contain electrolytes.

[0049] [Table 1]

[0050] The oil balm cleansing cosmetic compositions of the Examples and Comparative Examples were tested for pH, viscosity, stability, and sensory evaluation by the methods described below. The results are summarized in Table 2.

[0051] [pH] The pH at 25°C was measured using a pH meter F-51 manufactured by HORIBA.

[0052] [viscosity] Using a B-type rotational viscometer (Rheolab QC manufactured by Anton Paar), an ancre-type spindle was inserted into the oil balm cleansing cosmetic composition contained in a container with an inner diameter of 4.5 mm and kept at 25°C, and measurements were taken at a rotation speed of 10 rpm.

[0053] [Stability] (1) Stability at 4°C, 25°C (room temperature), 45°C, and 50°C The oil balm cleansing cosmetic composition was placed in a transparent container, sealed with a lid, and stored for one month at 4°C, 25°C (room temperature), 45°C, or 50°C. After storage, the container was returned to room temperature (25°C) and observed for oil exudation. Some containers were stable and did not exudate oil, some showed oil exudation, and some showed phase separation. (2) Cycle test at 40℃ and -10℃ The oil balm cleansing cosmetic composition was placed in a transparent container, sealed with a lid, and stored for a total of one month, alternately at 40°C for 12 hours and at -10°C for 12 hours. After the cycle, the container was returned to room temperature (25°C) and observed for oil exudation. Some samples were stable and did not exudate oil, some showed oil exudation, and some showed phase separation.

[0054] [Evaluation of cleansing performance] The cleansing power of the above oil balm cleansing cosmetic compositions against waterproof mascara was evaluated using the following method. 5 mg of waterproof mascara (Dior's Diorshow Iconic Overcurl Waterproof Mascara) was applied in a 1 cm circle onto a vinyl chloride plate and allowed to dry overnight or more. 20 mg of the oil balm cleansing cosmetic compositions of the Examples and Comparative Examples were applied to the mascara and massaged 80 times with the fingers. After rinsing with tap water, the condition of the remaining mascara was compared to evaluate the cleansing performance. A: Excellent B: Slightly inferior C: Inferior

[0055] [Sensory evaluation of spreadability] The spreadability was evaluated by a panel of 10 cosmetic experts from the organization to which the present inventors belong. A: Excellent B: Slightly inferior C: Inferior

[0056] [Table 2] These results show that a combination of (A) oil and (B) oil gelling agent, in which component (B) contains a polysaccharide fatty acid ester (B1) containing an inulin fatty acid ester and a multi-chain multi-hydrophilic group-containing compound (B2) having a structure in which two N-acylamino acid salt molecules are bound to lysine, has superior cleansing performance and spreadability compared to the comparative examples. In particular, Comparative Example 1 shows that when only a dextrin linear fatty acid ester is used as the polysaccharide fatty acid ester, spreadability, i.e., compatibility with makeup, is insufficient.

Claims

1. An oil balm cleansing cosmetic composition containing (A) oil and (B) an oil gelling agent, the component (B) contains (B1) a polysaccharide fatty acid ester including an inulin fatty acid ester, and (B2) a multi-chain multi-hydrophilic group type compound having a structure in which two molecules of an N-acylamino acid salt are linked to lysine, (A) An oil balm cleansing cosmetic composition, wherein the total amount of oil is 60 to 90% based on the total weight of the composition.

2. 2. The oil balm cleansing cosmetic composition according to claim 1, further comprising one or more optional ingredients (C) selected from the group consisting of preservatives, moisturizers, colorants, and active ingredients, wherein one or more of the optional ingredients is an electrolyte.

3. The oil balm cleansing cosmetic composition according to claim 1 or 2, wherein the fatty acid ester of a polysaccharide further comprises a linear fatty acid ester of dextrin.

4. The oil balm cleansing cosmetic composition according to any one of claims 1 to 3, wherein the polysaccharide fatty acid ester (B1) is an ester of a polysaccharide with one or more saturated fatty acids having 12 to 22 carbon atoms.

5. The oil balm cleansing cosmetic composition according to any one of claims 1 to 4, wherein the multi-chain multi-hydrophilic group type compound is a compound represented by the following general formula (1): 【Chemistry 1】 [In the formula, X １ , X ２ and X ３ are each independently an alkali metal atom, and R １ and R ２ one of R is a single bond and the other is a methylene group or an ethylene group; ３ and R ４ one of the groups is a single bond, and the other is a methylene group or an ethylene group, and n and m are each independently an integer of 11 to 21.

6. The oil balm cleansing cosmetic composition according to any one of claims 2 to 5, wherein component (B) is stearoyl inulin, dextrin palmitate, and dilauroyl lysine sodium salt.

7. The oil balm cleansing cosmetic composition according to any one of claims 2 to 6, wherein the oil (A) is selected from the group consisting of oil-based cleansing oils, ester oil-based cleansing oils, mineral oil-based cleansing oils, and mixtures thereof.

8. 2. The oil balm cleansing cosmetic composition according to claim 1, wherein the total amount of oil (A) is 70 to 90% based on the total weight of the composition.

9. The oil balm cleansing cosmetic composition according to any one of claims 2 to 7, wherein the moisturizing agent is a polyol having three or more hydroxyl groups in one molecule.

10. A cosmetic method for the care and / or make-up of keratinous materials, comprising the application of a cleansing oil balm according to any one of claims 1 to 9 onto the keratinous materials.

11. 11. The cosmetic method according to claim 10, wherein the oil balm cleanser provides high cleansing performance and good spreadability to the keratinous material to which it is applied.

12. The cosmetic method described in claim 10, wherein the keratinous material is skin.

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