Skin external use composition

Abstract

The present invention relates to a skin topical composition, characterized in that the composition comprises: a) solid particles, wherein the solid powder particles are porous particles with surface openings, and the average particle size of the primary particles is 0.5 to 20 μm; b) at least one wax; c) at least one carbon chain-based oil; and d) at least one surfactant, and the composition optionally comprises water, and the water content is less than 5% based on the total mass of the composition.

Description

Technical Field

[0001] The present invention belongs to the field of cosmetics, and in particular relates to a cosmetic composition for cleaning the skin or a composition for removing makeup. In particular, the present invention relates to a solid detergent composition having a low water content or substantially no water. Background Art

[0002] Compositions for skin cleansing have long been known to cleanse or remove aged stratum corneum, oil secretions, dirt or makeup, etc. from human skin.

[0003] Such compositions can usually exist in the form of liquid, semi-solid (e.g., gel) and other aqueous compositions. Such conventional personal cleaning and care compositions include makeup removal products, facial cleansing products, shaving products, etc. In addition, they can usually also contain one or more ingredients (e.g., fragrances, preservatives, surfactants, etc.). In recent years, facial cleansers (including makeup removers) have become the subcategory with the highest penetration rate in the facial skin care market in many markets. On the whole, these compositions, in addition to their cleaning effect, may also remove moisture from the skin when used, thereby making the skin feel too dry or cracked, which may lead to a poor sense of use.

[0004] In addition, there is another type of composition in the form of a solid composition containing a small amount of water or substantially no water, which can be spread on the skin under the action of external force when used on human skin to play a cleaning role. For example, a type of cleaning product commonly referred to as "soft solid" can give consumers a soft and dry feeling when used.

[0005] Reference 1 discloses a solid anhydrous composition comprising hydrophobic aerogel particles, at least one wax having a melting point of 60° C. or more, at least one hydrocarbon-based oil, and at least one nonionic surfactant. The composition has improved makeup removal ability, cleaning ability, and skin modification, and is easy to carry while maintaining a good makeup removal effect. It has a desired hardness to adapt to a desired device.

[0006] Reference 2 discloses a solid anhydrous composition comprising a) at least one hydrophobic polymer selected from the group consisting of ester-terminated poly(ester-amide)s and mixtures thereof; b) at least one hydrocarbon oil; and c) at least one nonionic surfactant. The composition is used for cleaning keratin materials and / or removing makeup from keratin materials.

[0007] In addition, in the prior art, a certain degree of research has been conducted on the cleaning ability, feel in use, makeup removal ability and rinsability of anhydrous solid cleaning compositions. However, due to the presence of room temperature solid (such as wax, etc.) and room temperature liquid (such as liquid oil components, etc.) components in these solid compositions, stability problems may occur during production, transportation, storage and even during use due to phase separation. This point has not yet received sufficient attention and reporting.

[0008] References:

[0009] Reference 1: CN106852117A

[0010] Reference 2: CN110062619A Summary of the invention

[0011] Problem that the invention aims to solve

[0012] As described above, although the cleaning ability, feel in use or water washability of solid cleaning compositions have been discussed in the prior art, the present invention has also found in long-term further research that although various room temperature solid components and oil components are used in the solid composition to meet the above-mentioned performance, this may also introduce stability problems.

[0013] For example, during production, transportation, storage, and even use, the solid composition may experience external influences such as vibration (e.g., causing it to stand in an unconventional stable shape) and temperature changes, and the solid components (including solid wax components) and liquid components such as oils may separate, which may cause a decrease in appearance, feel, and even cleaning performance. In particular, such a phenomenon becomes particularly obvious after the solid composition is subjected to a large temperature difference for a period of time.

[0014] Therefore, the present invention provides a skin topical composition, which is a solid cleaning composition containing a small amount of water or substantially no water, and the composition not only has good cleaning properties, comfortable usability and water washability, but also has improved stability and can avoid phase separation under the influence of external mechanical forces or temperature changes.

[0015] Solutions for solving problems

[0016] Through long-term research, the inventors found that the above technical problems can be solved by implementing the following technical solutions:

[0017] [1] The present invention first provides a skin external application composition, the composition comprising:

[0018] a) solid particles, wherein the solid particles are porous particles with surface openings, and the average particle size of primary particles is 0.5 to 20 μm;

[0019] b) at least one wax;

[0020] c) at least one carbon chain based oil; and

[0021] d) at least one surfactant,

[0022] And the composition optionally includes water, and the content of the water is 5% or less based on the total mass of the composition.

[0023] [2] The composition according to [1], wherein the average pore size of the pores on the surface of the solid particles of component a) is 7.5 to 50 nm.

[0024] [3] The composition according to [1] or [2], wherein the solid particles of component a) are selected from one or more of silica, surface-modified silica and organic polymer-based particles.

[0025] [4] The composition according to any one of [1] to [3], wherein the solid particles of component a) have an oil absorption of 300% or less and / or a specific surface area of ​​80 to 400 m 2 / g.

[0026] [5] The composition according to any one of [1] to [4], wherein the composition contains substantially no water.

[0027] [6] The composition according to any one of [1] to [5], wherein the wax of component b) is selected from one or more of natural plant waxes and artificial synthetic waxes.

[0028] [7] The composition according to any one of [1] to [6], wherein the content of component a) in the composition is 0.1 to 10% by weight, the content of component b) is 1 to 30% by weight, the content of component c) is 50 to 95% by weight, and the content of component d) is 3 to 30% by weight, based on the total weight of the composition.

[0029] [8]. Furthermore, the present invention provides a cleaning agent, wherein the cleaning agent comprises the composition according to any one of [1] to [7] above.

[0030] Effects of the Invention

[0031] By implementing the above technical solution, the present invention can achieve the following technical effects:

[0032] 1) The skin topical composition provided by the present invention has good skin cleansing ability and excellent feeling of use, and has satisfactory washability;

[0033] 2) The skin external preparation composition provided by the present invention can avoid the problem of deterioration of uniformity due to external mechanical force or temperature change, and has improved stability over time. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 : Temperature control diagram of stability test of the embodiment of the present invention

[0035] Figure 2 :Instructions for placing the tested samples during the evaluation test of the embodiment of the present invention (upright and sideways) DETAILED DESCRIPTION

[0036] The following is a detailed description of the present invention. The following description of the technical features is based on representative embodiments and specific examples of the present invention, but the present invention is not limited to these embodiments and specific examples. It should be noted that:

[0037] In this specification, the numerical range expressed using "a numerical value A to a numerical value B" means a range including the endpoints numerical values ​​A and B.

[0038] In the present specification, a numerical range expressed using "above" or "below" means a numerical range including the number.

[0039] In this specification, the word "may" means both performing a certain process and not performing a certain process.

[0040] In this specification, the use of "optional" or "optional" indicates that certain substances, components, execution steps, application conditions and other factors are used or not used.

[0041] In this specification, the terms "powder" and "particles" have the same physical meaning; "solid powder particles" and "solid particles" also have the same physical meaning.

[0042] In this specification, the "room temperature" used means an indoor ambient temperature of "25°C".

[0043] In this specification, the unit names used are all international standard unit names, and unless otherwise stated, the "%" used indicates weight or mass percentage.

[0044] In this specification, "resin" and "rubber" have different meanings, and the two are distinguished by whether they have "elasticity", that is, the former generally does not have obvious elasticity while the latter has obvious elasticity.

[0045] In the present invention, a "solid" composition refers to a composition at 25°C. "Solid" means that when it is measured according to the following protocol, its hardness at 25°C and at atmospheric pressure (760 mmHg) is greater than or equal to 30 Nm -1 For specific testing methods, methods described in references or prior art can be used.

[0046] In this specification, the term "substantially free of water" means that in some specific embodiments of the present invention, no water is added when the components are mixed, that is, the water that may be contained in the composition only comes from the inevitable trace amount of moisture that may be contained in the raw materials.

[0047] In this specification, the references to "some specific / preferred embodiments", "other specific / preferred embodiments", "embodiments", etc., mean that the specific elements (e.g., features, structures, properties and / or characteristics) described in connection with the embodiments are included in at least one embodiment described herein, and may or may not exist in other embodiments. In addition, it should be understood that the elements may be combined in various embodiments in any suitable manner.

[0048] The present invention relates to a skin external preparation composition, and in some specific embodiments, the composition is a skin cleansing composition containing very little water or substantially no water.

[0049] The skin topical composition of the present invention mainly comprises: solid particles, which are porous powders with surface openings (hereinafter also referred to as "solid powder particles"), and necessary waxy components, oily components and surfactants. In some preferred embodiments, the water content is less than 5% based on the total mass of the composition.

[0050] (Solid powder particles)

[0051] The skin external preparation composition of the present invention contains solid powder particles, and the solid powder particles of the present invention are porous solid particles or porous solid powders having pores on the surface.

[0052] In the present invention, the porous solid particles or porous solid powders are present in the skin topical composition mainly as primary particles. In some specific embodiments, the solid particles or powders present in the form of primary particles account for more than 90% of the total mass of all particles or powders, preferably more than 95%, and more preferably more than 98%.

[0053] The "primary particles" mentioned in the present invention refer to particles that exist in the form of single particles, which are distinguished from "secondary particles" in terms of their existence state. The latter refer to solid particles that have very small particle sizes and thus high surface energy, resulting in several single particles agglomerating together to form aggregated particles, such as aerogel-like substances.

[0054] In some specific embodiments of the present invention, the primary particles of the present invention have an average primary particle size (D50) of 0.5 to 20 μm, preferably 3 to 18 μm, and more preferably 4 to 15 μm. If the average particle size of the primary particles is too small, the primary particles may agglomerate to form secondary particles, which may deteriorate the stability of the composition of the present invention; if the average particle size of the primary particles is too large, it may adversely affect the comfort of the skin topical composition of the present invention during use, such as excessive granularity or excessive friction.

[0055] The porous solid particles or powders of the present invention can be selected from silica particles with an open-pore structure on the surface, surface-modified silica particles, particles based on organic polymers, or mixtures thereof. Preferably, for the consideration of the feel of use, the thermal expansion and contraction resistance of the material, and safety, the porous solid particles or powders of the present invention are preferably silica particles with an open-pore structure on the surface. In addition, in some specific embodiments, the porous solid particles or powders of the present invention can be hydrophobic particles or powders.

[0056] Furthermore, for surface-modified silica, it can be silica particles whose surface is modified by resin or rubber, such as silicone resin or silicone rubber; for particles based on organic polymers, they can be selected from particles of cross-linked or non-cross-linked organic polymer materials, such as (meth)acrylate resins, polyamide resins (nylon powder), polyethylene, polystyrene, copolymer resins of styrene and (meth)acrylic acid, benzoguanamine resins, polytetrafluoroethylene, cellulose, and organic silicone resins, silicone rubbers, etc., or composite (e.g. core-shell) particles formed of two or more of these substances.

[0057] Regarding the open pore structure on the surface of the porous solid particles or powders of the present invention, the “open pores” refer to the presence of holes on the surface of the particles or powders that are connected to the outside.

[0058] In some specific embodiments, the average pore size of these openings is greater than 7.5 nm, or greater than 8 nm, or greater than 10 nm, or greater than 12 nm; as for the upper limit of the average pore size of the openings, in some specific embodiments, the average pore size of the openings is less than 50 nm, or less than 30 nm, or less than 20 nm. Further, in some preferred embodiments of the present invention, the average pore size of the openings is preferably 7.5 to 15 nm.

[0059] The average pore size of the surface openings of the present invention can be measured by existing methods. Typically, the standard determination of the gas adsorption analysis test can be performed by nitrogen adsorption at liquid nitrogen temperature, and the data obtained are processed using the Barret, Joyner and Halenda method (abbreviated as BJH method) to obtain the final measured value.

[0060] The specific surface area of ​​the porous solid particles of the present invention may be 400 m 2 / g or less, preferably 80 to 400m 2 / g or 100 to 400m 2 / g, more preferably 200 to 350m 2 / g. For the specific surface area of ​​the present invention, it can be determined by the BET (Brunauer-Emmett-Teller) nitrogen adsorption method described in Journal of the American Chemical Society, Vol. 60, p. 309, February 1938 and corresponding to the international standard ISO 5794 / 1 (Appendix D). The BET specific surface area corresponds to the total specific surface area of ​​the particles tested.

[0061] In addition, the oil absorption of the porous solid particles of the present invention is not particularly limited, and is related to the specific surface area and the particle size. However, from the perspective of the stability of the skin external preparation composition of the present invention, the porous solid particles of the present invention have an oil absorption of 300% or less, preferably 50 to 250% or 100 to 250%. The oil absorption can be measured by conventional techniques, for example, by the wet point method or the method for determining the oil absorption of powders described in the standard NF T 30-022.

[0062] In the present invention, it is considered that the use of porous solid particles or solid powders having the above-defined characteristics is advantageous in avoiding the problem of poor stability due to phase separation when the porous solid particles or solid powders are mixed with other components in the skin external preparation composition of the present invention.

[0063] Through research, the present invention speculates that the above-mentioned effect may be caused by the following mechanism: in the skin topical preparation composition of the present invention, the wax component is used as the main solid component at room temperature, and is mixed with oily components, solid particles and surfactants. During the mixing process, the oily component can enter the surface openings of the solid particles, that is, the surface opening structure plays an anchoring role for the oily component that enters. Therefore, even if the skin topical preparation composition finally formed experiences external mechanical force stimulation (such as vibration during transportation or use) or temperature change stimulation (such as temperature changes caused by storage conditions or regional and seasonal differences), it can still avoid the oily component from the solid phase separation and precipitation in the skin topical preparation composition, thereby improving the overall stability of the skin topical preparation composition of the present invention and maintaining the original usability and cleaning ability. Moreover, such an anchoring effect can be well reflected even when the content of porous solid particles is less than 10%.

[0064] (Waxy ingredients)

[0065] The skin external application composition of the present invention contains a wax component.

[0066] In the present invention, the wax component refers to a lipid compound component that is solid at room temperature.

[0067] In some specific embodiments of the present invention, the wax component has a melting point of 30°C or more, preferably, a melting point of 50°C or more, more preferably, a melting point of 60°C or more, and further preferably, a melting point of 65°C or more. The melting point of the present invention can be determined by the temperature of the maximum endothermic peak observed on the thermal analysis (DSC) as described in the standard ISO 11357-3; 1999. In particular, the melting point of the wax component can be determined using a differential scanning calorimeter (DSC), such as the calorimeter sold by TA Instruments under the name MDSC 2920.

[0068] The wax component that can be used in the skin topical composition according to the present invention can be selected from natural animal and plant waxes or artificial synthetic waxes, specifically, can be selected from waxes of animal, plant, mineral or synthetic origin that are solid at room temperature, and mixtures thereof, and preferably, can be one or more of natural plant waxes and artificial synthetic waxes.

[0069] As specific examples of wax components that can be used in the present invention, hydrocarbon-based waxes such as beeswax, lanolin wax, insect wax, rice bran wax, carnauba wax, candelilla wax, carnauba wax, espartograss wax, berry wax, shellac wax, Japan wax and sumach wax; montan wax, orange wax, lemon wax, microcrystalline wax, ozokerite, polyethylene wax, polymethylene wax, 12-hydroxystearic acid, trihydroxystearin, wax and waxy copolymers obtained by Fischer-Tropsch synthesis, and esters thereof, and mixtures thereof can also be included. Waxes obtained by catalytic hydrogenation of animal or vegetable oils containing linear or branched C8-C32 fatty chains can also be included. Among these waxes, mention may especially be made of isomerized jojoba oils, for example the trans-isomerized partially hydrogenated jojoba oil manufactured or sold under the commercial reference PANOL® by the company Desert Whale, hydrogenated sunflower oil, hydrogenated castor oil, hydrogenated coconut oil, hydrogenated lanolin oil and bis(1,1,1-trimethylolpropane) tetrastearate sold under the name Hest by the company Heterene.

[0070] In some specific embodiments of the invention, use may be made of waxes obtained by hydrogenation of castor oil esterified with cetyl alcohol (for example the product under the name Phytowax ricin from the company Sophim), C20-C40 alkyl (hydroxystearyl) stearates (for example the products under the names Kester Wax K 82 Hydropolyester K 82 and Kester Wax K 80 from the company Koster Keunen), linear hydroxylated C18-C24 fatty acids (for example 12-hydroxystearic acid under the name 12-Hydroxystearic Acid Premium Grade 12H-P from the company Thai Kawaken).

[0071] In some specific embodiments of the present invention, the composition for external skin preparation according to the present invention comprises at least one wax component having a melting point greater than or equal to 60° C. These waxes can be selected from carnauba wax, ozokerite wax, microcrystalline wax, 12-hydroxystearic acid, polyethylene wax (e.g., those sold under the name Performalene 500LPolyethylene or Performalene 400LPolyethylene by New Phase Technologies, or Asensa SC 211 from Honeywell), polymethylene wax (e.g., products sold under the reference name Cirebelle 108 by Cirebelle), beeswax, candelilla wax, hydroxyoctacosanol hydroxystearate, hydrogenated castor oil, hydrogenated jojoba oil, rice bran wax, polyglycerolated beeswax, octacosanol stearate, paraffin wax (ceresin waxes, C20-C40 alkyl (hydroxystearyl) stearate waxes, 12-hydroxystearic acid, polyvinyl alcohol waxes, Fischer-Tropsch waxes, waxes obtained by hydrogenation of castor oil esterified with cetyl alcohol, carnauba wax, montan wax, trihydroxystearin with the INCI name Trihydroxystearin (sold, for example, by Elementis under the name Thixcin R), and mixtures thereof.

[0072] In other specific embodiments of the present invention, the skin topical composition according to the present invention comprises at least one wax having a melting point greater than or equal to 65°C, which can be selected from carnauba wax, ozokerite, microcrystalline wax, 12-hydroxystearic acid, polymethylene wax (for example, the product sold by Cirebelle under the reference name Cirebelle 108), candelilla wax, hydroxyoctacosanol hydroxystearate, hydrogenated castor oil, hydrogenated jojoba oil, rice bran wax, polyglycerolated beeswax, octacosanol stearate, paraffin, C20-C40 alkyl (hydroxystearyloxy) stearate wax, polyvinyl alcohol wax, Fischer-Tropsch wax, wax obtained by hydrogenation of castor oil esterified with cetyl alcohol, small crown carnauba wax, montan wax, trihydroxystearin with the INCI name trihydroxystearin (for example, sold by Elementis under the name Thixcin R), and mixtures thereof.

[0073] One or more wax components may be used, including, for example, a mixture of multiple wax components having the same melting point or near the same melting point, or a mixture of multiple wax components having different melting points.

[0074] In some more preferred embodiments of the present invention, the composition according to the present invention comprises at least one wax component having a melting point greater than or equal to 65° C., which is chosen from carnauba wax, ozokerite, microcrystalline wax, polymethylene wax, 12-hydroxystearic acid, candelilla wax, Fischer-Tropsch wax, hydrogenated jojoba oil and trihydroxystearin, and mixtures thereof.

[0075] (Carbon chain based oil)

[0076] In the present invention, the skin external preparation composition includes an oily substance, and the oily substance includes at least one carbon chain-based oil.

[0077] The "carbon chain-based" mentioned in the present invention means that the molecular backbone structure of the oil is mainly formed based on carbon-carbon bonds. Such a backbone structure includes a main chain structure and / or a branched chain structure, and is thus distinguished from silicon chain-based oils.

[0078] The carbon chain-based oil of the present invention is generally an oil in a liquid form at room temperature and 1 atmosphere. Such an oil may be a volatile oil or a non-volatile oil. Preferably, a non-volatile liquid oil is used. The meaning of "non-volatile liquid oil" in this specification refers to an oil that does not show volatility at normal temperature (25°C) / normal pressure (1 atmosphere) (for example, including oils having a boiling point of about 200°C or more at normal pressure), has fluidity at normal temperature / normal pressure, and is not a solid liquid.

[0079] The carbon chain-based oil of the present invention can be a liquid oil from the petrochemical industry or a liquid oil from animals or plants, and can be specifically selected from hydrocarbon oil, vegetable oil, mineral oil, ester oil, ether oil, and the like.

[0080] Specific examples include: liquid oils and fats such as linseed oil, camellia oil, macadamia oil, corn oil, olive oil, avocado oil, camellia oil, castor oil, safflower oil, almond oil, cinnamon oil, jojoba oil, grape oil, sunflower oil, wheat germ oil, rice germ oil, rice bran oil, cottonseed oil, soybean oil, peanut oil, tea seed oil, evening primrose oil, egg yolk oil, liver oil, triglycerol, tricaprylin, citrate, and triisopalmitin; caprylic acid esters such as cetyl caprylate and glyceryl tricaprylate; isooctanoic acid esters such as tri(2-ethylhexanoic acid) glyceryl, pentaerythritol tetra(2-ethylhexanoic acid) ester, and cetyl alcohol (2-ethylhexanoic acid) ester; lauric acid esters such as hexyl laurate; myristic acid esters such as isopropyl myristate and octyldodecyl myristic acid; palmitic acid esters such as octyl palmitate; stearic acid esters such as isocetyl stearate; isostearic acid esters such as isopropyl isostearate; isopalmitic acid esters such as octyl palmitate; oleic acid esters such as isodecyl oleate; adipate diesters such as diisopropyl adipate; sebacic acid diesters such as diethyl sebacate; ester oils such as diisostearyl malate; linear / branched hydrocarbon oils or polyolefin oils having 8 to 30 carbon atoms, such as isododecane, isohexadecane, hydrogenated polyisobutene, liquid paraffin, squalane and the like; higher fatty alcohols, including linear alcohols (such as lauryl alcohol, cetyl alcohol, stearyl alcohol, , behenyl alcohol, myristyl alcohol, oleyl alcohol and cetearyl alcohol) and branched alcohols (for example, monostearyl glyceryl ether (baty alcohol), 2-decyltetradecyl alcohol, lanolin alcohol, cholesterol, phytosterols, hexyldodecanol, isostearyl alcohol and octyldodecanol); higher fatty acids, for example, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, undecylenic acid, tall oil fatty acid, isostearic acid, linoleic acid, linoleic acid, eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA); ethers or polyalkylene polymer ether oils having 10 to 40 carbon atoms, for example, polyoxybutylene glycol and polyoxypropylene glycol.

[0081] For the above-mentioned oil based on carbon chain, one or more mixtures can be used. In some preferred embodiments of the present invention, from the perspective of usability and stability, polar oils are preferably used in the above-mentioned oils based on carbon chain. And, in some specific embodiments, the content of polar oil in the oil based on carbon chain is more than 80%, preferably more than 85%, and more preferably more than 90%.

[0082] In addition, without affecting the technical effects of the present invention, the oily substance of the present invention may also contain oils based on silicon chains, such as volatile or non-volatile organic silicone oils.

[0083] Volatile silicone oils are silicone oils that are volatile at room temperature and have been used in cosmetics, etc., and include, for example, volatile linear silicone oils (volatile polydimethylsiloxanes) and volatile cyclic silicone oils (volatile cyclomethicone). As volatile polydimethylsiloxanes, low-viscosity dimethylpolysiloxanes such as decamethyltetrasiloxane can be used, and commercially available products include KF-96L-1.5cs and KF-96L-2cs (both manufactured by Shin-Etsu Chemical Co., Ltd.). As volatile cyclomethicone, decamethylcyclopentasiloxane (D5) and the like can be listed.

[0084] In some specific embodiments of the present invention, in the skin external preparation composition of the present invention, the content of the carbon chain-based oil is 80% or more, preferably 85% or more, and more preferably 90% or more, based on the total mass of the oily substance.

[0085] (Surfactant)

[0086] The skin external preparation composition of the present invention includes a surfactant. There is no particular limitation on the type of the surfactant, and one or more of anionic surfactants, cationic surfactants, amphoteric surfactants and nonionic surfactants conventionally used in the art can be used.

[0087] Examples of anionic surfactants that can be used in the present invention include fatty acid soaps (e.g., sodium laurate and sodium palmitate); higher alkyl sulfate ester salts (e.g., sodium lauryl sulfate and potassium lauryl sulfate); alkyl ether sulfate ester salts (e.g., POE-triethanolamine lauryl sulfate and POE-sodium lauryl sulfate); N-acyl sarcosine (e.g., sodium N-lauroyl sarcosinate); higher fatty acid amide sulfonates (e.g., sodium N-myristoyl N-methyl taurate, sodium cocoyl methyl taurate, and sodium lauryl methyl taurate); phosphate ester salts (e.g., sodium POE-oleyl ether phosphate and sodium POE stearyl ether phosphate); sulfosuccinates (e.g., sodium di-2-ethylhexyl sulfosuccinate, monolauroyl monoethanolamide polyoxyethylene sulfosuccinate); The invention also includes the following: sodium lauroyl glutamate, sodium succinate, and sodium lauryl polypropylene glycol sulfosuccinate); alkylbenzene sulfonates (e.g., sodium linear dodecylbenzene sulfonate, triethanolamine linear dodecylbenzene sulfonate, and linear dodecylbenzene sulfonic acid); higher fatty acid ester sulfates (e.g., sodium hydrogenated coconut fatty acid glyceryl sulfate); N-acyl glutamates (e.g., monosodium N-lauroyl glutamate, disodium N-stearoyl glutamate, and sodium N-myristoyl-L-glutamate); sulfated oils (e.g., turkey red oil); POE-alkyl ether carboxylic acids; POE-alkyl aryl ether carboxylates; α-olefin sulfonates; higher fatty acid ester sulfonates; secondary alcohol sulfates; higher fatty acid alkylamide sulfates; sodium lauroyl monoethanolamine succinate; bistriethanolamine N-palmitoyl aspartate; and sodium caseinate.

[0088] Examples of cationic surfactants that can be used in the present invention include alkyltrimethylammonium salts (e.g., stearyltrimethylammonium chloride and lauryltrimethylammonium chloride); alkylpyridinium salts (e.g., cetylpyridinium chloride); distearyldimethylammonium chloride dialkyldimethylammonium salts; poly(N,N'-dimethyl-3-methylenepiperidinium) chloride; alkylquaternary ammonium salts; alkyldimethylbenzylammonium salts; alkylisoquinolinium salts; dialkylmorpholine salts; POE alkylamines; alkylamine salts; polyamine fatty acid derivatives; amyl alcohol fatty acid derivatives; benzalkonium chloride; and benzethonium chloride.

[0089] Examples of amphoteric surfactants that can be used in the present invention include: imidazoline-type amphoteric surfactants (e.g., 2-undecyl-N,N,N-(hydroxyethylcarboxymethyl)-2-imidazoline sodium salt and 2-cocoyl-2-imidazoline hydroxide 1-carboxyethoxy disodium salt, etc.); and betaine-type surfactants (e.g., 2-heptadecanyl-n-carboxymethyl-n-hydroxyethylimidazoline betaine, dodecyldimethylaminoacetic acid betaine, alkyl betaines, amido betaines and sulfo betaines, etc.).

[0090] Examples of the nonionic surfactant that can be used in the present invention include hydrophilic nonionic surfactants and lipophilic nonionic surfactants.

[0091] Examples of the hydrophilic surfactant include polyglycerol fatty acid esters (e.g., hexaglycerol monolaurate (HLB 14.5), hexaglycerol monomyristate (HLB 11), hexaglycerol monostearate (HLB 9.0), hexaglycerol monooleate (HLB 9.0), decaglycerol monolaurate (HLB 15.5), decaglycerol monomyristate (HLB 14.0), decaglycerol monostearate (HLB 12.0), decaglycerol monoisostearate (HLB 12.0), decaglycerol monooleate (HLB 12.0), decaglycerol distearate (HLB 9.5), and decaglycerol diisostearate (HLB 10.0)); polyoxyethylene glycerol fatty acid esters (e.g., polyoxyethylene ("POE") (5) glycerol monostearate (HLB 9.5), POE (15) glycerol monostearate (HLB 13.5), POE (5) glycerol monooleate (HLB 13.5); 9.5), and POE (15) glycerol monooleate (HLB 14.5)); polyoxyethylene sorbitan fatty acid esters (e.g., POE (20) sorbitan monostearate (HLB 16.9), POE (20) sorbitan monopalmitate (HLB 15.6), POE (20) sorbitan monostearate (HLB 14.9), POE (6) sorbitan monostearate (HLB 9.5), POE (20) sorbitan tristearate (HLB 10.5), POE (20) sorbitan monoisostearate (HLB 15.0), POE (20) sorbitan monooleate (HLB 15.0), POE (6) sorbitan monooleate (HLB 10.0), and POE (20) sorbitan trioleate (HLB 10.5); 11.0)); polyoxyethylene sorbitan fatty acid esters (e.g., POE (6) sorbitan monolaurate (HLB 15.5), POE (60) sorbitan tetrastearate (HLB 13.0), POE (30) sorbitan tetraoleate (HLB 11.5), POE (40) sorbitan tetraoleate (HLB 12.5), and POE (60) sorbitan tetraoleate (HLB 14.0)); polyoxyethylene lanolin / lanolin alcohol / beeswax derivatives (e.g., POE (10) lanolin (HLB 12.0), POE (20) lanolin (HLB 13.0), POE (30) lanolin (HLB 15.0), POE (5) lanolin alcohol (HLB 12.5), POE (10) lanolin alcohol (HLB 15.5), POE (20) lanolin alcohol (HLB 14.0)). 16.0), POE (40) lanolin alcohol (HLB 17.0) and POE (20) sorbitol beeswax (HLB 9.5); polyoxyethylene castor oil / hydrogenated oil (e.g. POE (20) castor oil (HLB 10.5), POE (40) castor oil (HLB 12.5), POE (50) castor oil (HLB 14.0), POE (60) castor oil (HLB 14.0), POE (20) hydrogenated castor oil (HLB 10.5), POE (30) hydrogenated castor oil (HLB 11.0), POE (40) hydrogenated castor oil (HLB 13.5), POE (60) hydrogenated castor oil (HLB 14.0), POE (80) hydrogenated castor oil (HLB 16.5), and POE (100) hydrogenated castor oil (HLB 16.5); polyoxyethylene sterols / hydrogenated sterols (e.g., POE (5) phytosterols (HLB 9.5), POE (10) phytosterols (HLB 12.5), POE (20) phytosterols (HLB 13.5), POE (60) hydrogenated castor oil (HLB 14.0), POE (80) hydrogenated castor oil (HLB 16.5), and POE (100) hydrogenated castor oil (HLB 16.5); 15.5), POE(30) phytosterol (HLB 18.0), POE(25) phytosterol (HLB 14.5), and POE(30) cholestanol (HLB 17.0)); polyoxyethylene alkyl ethers (e.g., POE(2) lauryl ether (HLB 9.5), POE(4.2) lauryl ether (HLB 11.5), POE(9) lauryl ether (HLB 14.5), POE(5.5) cetyl ether (HLB 10.5), POE(7) cetyl ether (HLB 11.5), POE(10) cetyl ether (HLB 13.5), POE(15) cetyl ether (HLB 15.5), POE(20) cetyl ether (HLB 17.0), POE(23) cetyl ether (HLB 14.5). 18.0), POE (4) stearyl ether (HLB 9.0), POE (20) stearyl ether (HLB 18.0), POE (7) oleyl ether (HLB 10.5), POE (10) oleyl ether (HLB 14.5), POE (15) oleyl ether (HLB 16.0), POE (20) oleyl ether (HLB 17.0), POE (50) oleyl ether (HLB 18.0), POE (10) behenyl ether (HLB 10.0), POE (20) behenyl ether (HLB 16.5), POE (30) behenyl ether (HLB 18.0), POE (2) (C12-15) alkyl ether (HLB 9.0), POE (4) (C12-15) alkyl ether (HLB 10.5), POE (10) (C12-15) alkyl ether (HLB 15.5), POE (5) secondary alkyl ether (HLB 10.5), POE (7) secondary alkyl ether (HLB 12.0), POE (9) alkyl ether (HLB 13.5), and POE (12) alkyl ether (HLB 14.5)); polyoxyethylene polyoxypropylene alkyl ether (e.g., POE (1) polyoxypropylene ("POP") (4) cetyl ether (HLB 9.5), POE(10) POP(4) cetyl ether (HLB 10.5), POE(20) POP(8) cetyl ether (HLB 12.5), POE(20) POP(6) decyl tetradecyl ether (HLB 11.0), and POE(30) POP(6) decyl tetradecyl ether (HLB 12.0)); polyethylene glycol fatty acid esters (e.g., polyethylene glycol ("PEG") (10) (HLB 12.5), PEG(10) monostearate (HLB 11.0), PEG(25) monostearate (HLB 15.0), PEG(40) monostearate (HLB 17.5), PEG(45) monostearate (HLB 18.0), PEG(55) monostearate (HLB 18.0), PEG(10) monooleate (HLB 11.0), PEG distearate (HLB 15.0). 16.5) and PEG distearate (HLB 9.5)); and (tri) polyoxyethylene isostearin (e.g., PEG (8) isostearin (HLB 10.0), PEG (10) isostearin (HLB 10.0), PEG (15) isostearin (HLB 12.0), PEG (20) isostearin (HLB 13.0), PEG (25) isostearin (HLB 14.0), PEG (30) isostearin (HLB 15.0), PEG (40) isostearin (HLB 15.0), PEG (50) isostearin (HLB 16.0), and PEG (60) isostearin (HLB 16.0)).

[0092] Examples of lipophilic surfactants include POE (2) stearyl ether (HLB 4.0), self-emulsifying propylene glycol monostearate (HLB 4.0), glyceryl myristate (HLB 3.5), glyceryl monostearate (HLB 4.0), self-emulsifying glyceryl monostearate (HLB 4.0), glyceryl monoisostearate (HLB 4.0), glyceryl monooleate (HLB 2.5), hexaglyceryl tristearate (HLB 2.5), decaglyceryl pentastearate (HLB 3.5), decaglyceryl pentaisostearate (HLB 3.5), decaglyceryl pentaoleate (HLB 3.5), sorbitan monostearate (HLB 4.7), sorbitan tristearate (HLB 2.1), sorbitan ...). 5.0), sorbitan sesquiisostearate (HLB 4.5), sorbitan monooleate (HLB 4.3), POE (6) sorbitan hexastearate (HLB 3.0), POE (3) castor oil (HLB 3.0), PEG (2) monostearate (HLB 4.0), ethylene glycol monostearate (HLB 3.5) and PEG (2) stearate (HLB 4.5).

[0093] In some preferred embodiments of the present invention, one or more nonionic surfactants having an HLB value of 4.5 to 20, preferably 5 to 15, are preferably used for consideration of feel and stability.

[0094] (Skin external application composition)

[0095] The skin topical composition of the present invention can be obtained by mixing the above-mentioned various components in a uniformly mixed manner. There is no particular limitation on the mixing method. The components can be mixed simultaneously, or any several components can be mixed and then mixed with other components. In some preferred embodiments of the present invention, the above-mentioned solid powder particles can be mixed with at least a portion of the carbon chain oil, and then mixed with other components to obtain the skin topical composition of the present invention.

[0096] In addition, with regard to the mixing temperature, in some specific embodiments, the mixing can be performed within a range of 30 to 70°C.

[0097] The amount of the solid powder particles used in the present invention may be 0.1 to 10%, preferably 0.3 to 8%, and more preferably 0.5 to 5%, based on the total weight of the skin external preparation composition.

[0098] The amount of the wax used in the present invention may be 1 to 30%, preferably 2 to 20%, more preferably 3 to 15%, and even more preferably 3 to 10%, based on the total weight of the skin external preparation composition.

[0099] The amount of the carbon chain-based oil used in the present invention may be 50 to 95%, preferably 55 to 90%, and more preferably 60 to 85%, based on the total weight of the skin external preparation composition.

[0100] The amount of the surfactant used in the present invention may be 3 to 30%, preferably 5 to 28%, and more preferably 10 to 25%, based on the total mass of the skin external preparation composition.

[0101] In some specific embodiments of the present invention, the moisture content (based on the total mass of the composition) in the skin topical composition of the present invention is 5% or less, preferably 3% or less, further preferably 1% or less, and more preferably 0.5% or less. In some preferred embodiments, the skin topical composition of the present invention does not substantially contain water, or when the composition of the present invention is mixed, no additional water is added, and the moisture in the composition of the present invention is derived only from the residual moisture that is inevitably present in each component.

[0102] Furthermore, in some specific embodiments of the present invention, the total amount of components a) to d) can be 85% or more, preferably 90% or more, and further preferably 95% or more, based on the total mass of the skin external preparation composition.

[0103] There is no particular requirement for the hardness of the skin topical composition of the present invention. In some specific embodiments, the skin topical composition of the present invention has a hardness of 40 N / m or more, preferably a hardness of 50 to 300 N / m. In addition, the skin topical composition of the present invention may or may not have a fixed shape; it may be directly applied to the human body or skin, or it may be loaded on other carriers or applied to the human body or skin with the aid of other carriers.

[0104] In addition, in addition to the above-mentioned components, various auxiliary ingredients suitable for use in cosmetic compositions can also be used in the composition of the present invention without hindering the technical effect of the present invention. Such auxiliary ingredients include, but are not limited to, preservatives, antioxidants, compounding agents, pH regulators (acidic or alkaline), spices, other fillers, bactericides, odor absorbers, colorants (pigments and dyes), film-forming polymers, thickeners and / or gelling agents, active ingredients (such as sodium hyaluronate, plant extracts such as madecassoside), etc. In other specific embodiments, the skin topical composition of the present invention is solid, has self-forming and self-supporting properties, and therefore, does not need to include (water-insoluble) artificial or natural polymer-based support carriers, such as mesh, filamentous, cloth-like carriers, etc.

[0105] In addition, the skin topical composition of the present invention can be prepared into various cosmetic products as needed, such as creams, ointments, solid or gel cosmetic products with a fixed shape, etc. In some preferred embodiments, the skin topical composition of the present invention can be used to prepare human body or skin cleaning products, more preferably, can be used to prepare detergent products for use in makeup removal, etc.

[0106] Example

[0107] Hereinafter, the technical solution of the present invention will be described through specific embodiments.

[0108] <Raw Materials>

[0109] The names and sources of the raw materials of the present invention are shown in Table 1 below

[0110] Table 1:

[0111]

[0112] Table 2 below is the physical property data of the solid particles in Table 1:

[0113] Table 2:

[0114]

[0115] <Preparation method>

[0116] Preparation of the material:

[0117] Component A: Put the wax into some hydrocarbon oil and heat it to 90±2℃ until it is completely melted;

[0118] Component B: Mix the solid particles with the remaining oil, stir vigorously until the particles are completely dispersed, add component A, control the temperature at 85±2℃, add other raw materials in sequence, filter the material after mixing, and store it.

[0119] Filling of material:

[0120] Put the material into the kettle, heat it to 82±2℃, and wait for the material to fully melt before filling. After filling, cool the semi-finished product to obtain a cylindrical cooled product, pack it in a box, and store it at room temperature.

[0121] <Test Method>

[0122] Usability evaluation:

[0123] The solid substances obtained in the following examples and comparative examples were used to cleanse the (facial) skin, and a test was conducted to determine whether a greasy feeling was produced after washing with water (average data of 20 people).

[0124] Stability evaluation:

[0125] Place the sample to be tested sideways in an oven with a set temperature of 5-45°C. Perform two cycles per day, with 5°C and 45°C maintained for 2 hours. The setting curve of the thermostat is as shown in the attached figure. Figure 1 The temperature control program shown is used to perform temperature change treatment for a total of 28 cycles over 14 days, and then observe whether the surface of the test product has oil seepage.

[0126] By turning the cylinder on its side (rather than upright, see Figure 2 ) and implement variable temperature treatment to simulate the system stability when the abnormal storage state is coupled with temperature changes that may occur during transportation and storage.

[0127] <Examples 1 to 3, Comparative Examples 1 and 2>:

[0128] The components in Table 1 were prepared into composite materials according to the above method and tested:

[0129] Table 3:

[0130]

[0131] It should be noted that, although the technical solution of the present invention is introduced with specific examples, those skilled in the art will appreciate that the present disclosure should not be limited thereto.

[0132] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

[0133] Industrial Applicability

[0134] The skin external preparation composition of the present invention can be produced and used industrially.

Claims

1. A composition for external use on skin, characterized in that: The composition comprises: a) solid particles, wherein 90% by mass or more of the solid particles are in the form of primary particles, and the solid particles are porous particles having surface openings, and the average particle size of the primary particles is 0.5 to 20 μm; b) at least one wax; c) at least one carbon chain based oil; and d) at least one surfactant, And, the composition optionally includes water, and the content of the water is 5% or less based on the total mass of the composition, The average pore size of the surface openings of the solid particles of component a) is 7.5 to 50 nm, the oil absorption of the solid particles of component a) is less than 300% and / or the specific surface area is 80 to 400 m 2 / g.

2. The composition according to claim 1, characterized in that The solid particles of component a) are selected from one or more of silica, surface-modified silica and particles based on organic polymers.

3. The composition according to claim 1 or 2, characterized in that The composition includes substantially no water.

4. The composition according to claim 1 or 2, characterized in that The b) component wax is selected from one or more of natural plant waxes and artificial synthetic waxes.

5. The composition according to claim 1 or 2, characterized in that In the composition, based on the total weight of the composition, the content of component a) is 0.1-10%, the content of component b) is 1-30%, the content of component c) is 50-95%, and the content of component d) is 3-30%.

6. A cleaning agent, characterized in that: The cleaning agent comprises the composition according to any one of claims 1 to 5.

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