CN115475105A - Water-in-oil type solid cosmetic - Google Patents
Water-in-oil type solid cosmetic Download PDFInfo
- Publication number
- CN115475105A CN115475105A CN202210578704.1A CN202210578704A CN115475105A CN 115475105 A CN115475105 A CN 115475105A CN 202210578704 A CN202210578704 A CN 202210578704A CN 115475105 A CN115475105 A CN 115475105A
- Authority
- CN
- China
- Prior art keywords
- solid cosmetic
- water
- oil
- wax
- mass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 239000002537 cosmetic Substances 0.000 title claims abstract description 187
- 239000007787 solid Substances 0.000 title claims abstract description 167
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- 235000013793 astaxanthin Nutrition 0.000 claims abstract description 53
- MQZIGYBFDRPAKN-ZWAPEEGVSA-N astaxanthin Chemical compound C([C@H](O)C(=O)C=1C)C(C)(C)C=1/C=C/C(/C)=C/C=C/C(/C)=C/C=C/C=C(C)C=CC=C(C)C=CC1=C(C)C(=O)[C@@H](O)CC1(C)C MQZIGYBFDRPAKN-ZWAPEEGVSA-N 0.000 claims abstract description 53
- 239000001168 astaxanthin Substances 0.000 claims abstract description 53
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- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 claims description 13
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- 125000003438 dodecyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 8
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- GJJVAFUKOBZPCB-ZGRPYONQSA-N (r)-3,4-dihydro-2-methyl-2-(4,8,12-trimethyl-3,7,11-tridecatrienyl)-2h-1-benzopyran-6-ol Chemical class OC1=CC=C2OC(CC/C=C(C)/CC/C=C(C)/CCC=C(C)C)(C)CCC2=C1 GJJVAFUKOBZPCB-ZGRPYONQSA-N 0.000 description 4
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- 150000001298 alcohols Chemical class 0.000 description 3
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- DTPCFIHYWYONMD-UHFFFAOYSA-N decaethylene glycol Chemical compound OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCO DTPCFIHYWYONMD-UHFFFAOYSA-N 0.000 description 3
- 235000014113 dietary fatty acids Nutrition 0.000 description 3
- SHZIWNPUGXLXDT-UHFFFAOYSA-N ethyl hexanoate Chemical compound CCCCCC(=O)OCC SHZIWNPUGXLXDT-UHFFFAOYSA-N 0.000 description 3
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- QUEDXNHFTDJVIY-UHFFFAOYSA-N γ-tocopherol Chemical class OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1 QUEDXNHFTDJVIY-UHFFFAOYSA-N 0.000 description 3
- JNAYPSWVMNJOPQ-UHFFFAOYSA-N 2,3-bis(16-methylheptadecanoyloxy)propyl 16-methylheptadecanoate Chemical compound CC(C)CCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCC(C)C)COC(=O)CCCCCCCCCCCCCCC(C)C JNAYPSWVMNJOPQ-UHFFFAOYSA-N 0.000 description 2
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Classifications
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- A—HUMAN NECESSITIES
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- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/35—Ketones, e.g. benzophenone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
- A61K8/0216—Solid or semisolid forms
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/31—Hydrocarbons
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
- A61K8/67—Vitamins
- A61K8/678—Tocopherol, i.e. vitamin E
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q19/00—Preparations for care of the skin
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/10—General cosmetic use
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Abstract
The invention provides a water-in-oil type solid cosmetic which is suppressed in color change, excellent in shape stability during application, and excellent in water-moist feeling. The water-in-oil type solid cosmetic contains astaxanthin, 25 to 40 mass% of water and hydrocarbon paraffin with respect to the total mass of the water-in-oil type solid cosmetic.
Description
Technical Field
The present invention relates to a water-in-oil type solid cosmetic.
Background
Astaxanthin, which is one of carotenoids, is known to have various functions such as an antioxidant effect, an anti-inflammatory effect, an anti-aging effect, and an inhibitory effect on color spots, wrinkles, and the like, and is widely blended in a water-in-oil type or an oil type composition suitable for cosmetics or quasi-drugs.
Patent document 1 discloses a water-in-oil type emulsion cosmetic composition containing (a) hydrophobized inorganic powder, (b) silicone surfactant having an organopolysiloxane group and a hydrophilic group grafted to the siloxane main chain, (c) silicone oil, (d) triglyceride, and (e) astaxanthin.
Patent document 2 discloses a solid cosmetic composition containing (a) astaxanthin, (b) a partially crosslinked emulsifying silicone elastomer, and (c) a polyol having an IOB value of 1.80 to 3.50.
Patent document 1: japanese patent laid-open publication No. 2012-211114
Patent document 2: japanese laid-open patent publication No. 2017-132706
Although it is a solid cosmetic, one of means for obtaining a feeling of use of water-in-oil type solid cosmetics is a cosmetic in which water is blended in a high proportion. However, unlike a typical solid cosmetic in which almost all of the contained components are composed of an oily component, a water-in-oil type solid cosmetic containing water is likely to cause concentration of components contained in the cosmetic by evaporation of water over time. In particular, in a water-in-oil type solid cosmetic containing a high proportion of water, the concentration of components contained in the cosmetic can be more remarkably caused.
Although water-in-oil type solid cosmetics containing astaxanthin and high water content exhibit a light orange to red color at the initial stage of production, the water content may evaporate over time to concentrate the astaxanthin, resulting in a dark color tone derived from astaxanthin. Such a deep coloration is likely to occur on the surface portion of the water-in-oil solid cosmetic that is in contact with the outside air and therefore can cause a color change such as discoloration or color unevenness in the appearance of the water-in-oil solid cosmetic. Since cosmetics are required to have high aesthetic properties in particular in terms of their properties, color changes such as discoloration and color unevenness need to be kept within a range acceptable to consumers.
Further, in the solid cosmetic, a use mode is also assumed in which the solid cosmetic is directly applied to the skin from a container such as a push container without being taken out from the storage container, and therefore, even when the solid cosmetic is applied to such a use mode, it is one of the performances required of the solid cosmetic to suppress the occurrence of shape breakage (crushing, missing, etc.) at the time of application.
Disclosure of Invention
The present invention has been made in view of the above circumstances.
An object of one embodiment of the present invention is to provide a water-in-oil type solid cosmetic that suppresses color change, has excellent shape stability during application, and has excellent water-moist feel.
The present invention includes the following modes.
[1] A water-in-oil type solid cosmetic comprising:
astaxanthin; 25 to 40 mass% of water with respect to the total mass of the water-in-oil type solid cosmetic; and hydrocarbon paraffins.
[2] The water-in-oil type solid cosmetic according to [1], wherein,
the content of the hydrocarbon paraffin is 3.5% by mass or more based on the total mass of the water-in-oil solid cosmetic.
[3] The water-in-oil type solid cosmetic according to [1] or [2], which further contains a wax.
[4] The water-in-oil type solid cosmetic according to [3], wherein the content ratio of the paraffin wax to the wax is 2.5 to 10 on a mass basis.
[5] The water-in-oil type solid cosmetic wax according to [3] or [4] comprises candelilla wax.
[6] The water-in-oil type solid cosmetic according to any one of [1] to [5], which further contains vitamin E.
[7] The water-in-oil type solid cosmetic according to any one of [1] to [6], wherein,
the hydrocarbon wax comprises ceresin wax.
[8] The water-in-oil type solid cosmetic according to any one of [1] to [7], which is contained in a metal container.
Effects of the invention
According to one embodiment of the present invention, there is provided a water-in-oil type solid cosmetic which is suppressed in color change, excellent in shape stability at the time of application, and excellent in water-moist feeling.
Detailed Description
Hereinafter, an example of an embodiment of the water-in-oil type solid cosmetic of the present invention (hereinafter, also simply referred to as "solid cosmetic") will be described. However, the solid cosmetic of the present invention is not limited to the following embodiments, and can be modified as appropriate within the scope of the object of the present invention.
In the present invention, the numerical range represented by the term "to" means a range in which the numerical values before and after the term "to" are included as the minimum value and the maximum value, respectively.
In the present invention, in the numerical ranges described in the stepwise manner, the upper limit value or the lower limit value described in a certain numerical range may be replaced with the upper limit value or the lower limit value described in another stepwise manner. In the numerical ranges described in the present invention, the upper limit or the lower limit of a certain numerical range may be replaced with the values shown in the examples.
In the present invention, when a plurality of substances corresponding to each component are present in the solid cosmetic, the amount of each component in the solid cosmetic means the total amount of the plurality of substances present in the solid cosmetic, unless otherwise specified.
In the present invention, "oil phase" means a continuous phase of a water-in-oil type composition forming a solid cosmetic. In the present invention, the oil phase composition comprises a medium constituting the continuous phase and an ingredient dispersed or dissolved in the medium. In the present invention, "aqueous phase" means a dispersed phase of a water-in-oil composition forming a solid cosmetic. In the present invention, the aqueous phase composition comprises a liquid medium constituting the dispersed phase and an ingredient dispersed or dissolved in the liquid medium.
In the present invention, a combination of 2 or more preferred embodiments is a more preferred embodiment.
In the present invention, "color change" of a solid cosmetic means a change in color tone such as discoloration, color unevenness, or the like locally occurs in the appearance of the solid cosmetic over a period of time. The manner of color change is not limited. For example, discoloration of the entire surface of the solid cosmetic, color unevenness in a layer-like manner on the surface of the solid cosmetic, and spot-like discoloration of the surface of the solid cosmetic are included in the color change. For example, when the color change is the surface of a stick-shaped solid cosmetic pushed out from the push-out container, the color change is visually recognized as a gradation-like color unevenness extending from the tip portion of the heavy color to the tip portion of the light color.
In the present invention, the phrase "shape stability when applying a solid cosmetic" means that, when the cosmetic is left to stand at room temperature (25 ℃) without being stored in a container, the molded state is maintained and the shape is prevented from being broken (crushed, missing, etc.) by pressing applied at the time of application.
In the present invention, "water-moist feeling" refers to a tactile sensation in which the presence of moisture can be felt in the skin immediately after the application of the solid-in-oil cosmetic.
In the present invention, wax is a form of an oil agent, and is a generic name of an organic substance that is solid at 25 ℃ and melted when heated. In the present invention, the "oil agent" refers to a component generally used as an oil agent in the field of cosmetics.
In the present invention, the hydrocarbon paraffin means paraffin composed of only hydrocarbons. The details of the hydrocarbon paraffin will be described later.
In the present invention, wax refers to paraffin wax which is derived from plants or animals and contains an ester bond in the structure. The details of the wax will be described later.
< Water-in-oil type solid cosmetic >
The solid cosmetic of the present invention is a water-in-oil type solid cosmetic containing astaxanthin, 25 to 40% by mass of water and hydrocarbon paraffin with respect to the total mass of the water-in-oil type solid cosmetic.
The solid cosmetic of the present invention is suppressed in color change, excellent in shape stability during application, and excellent in water-touch feeling. The suppression of color change, the shape stability during application, and the water-moist feeling may be maintained at least for the storage period set in the solid cosmetic of the present invention.
Although the reason why the solid cosmetic of the present invention exerts such an effect is not clear, the present inventors presume as follows.
It is presumed that when the solid cosmetic of the present invention contains astaxanthin and 25 to 40% by mass of water based on the total mass of the solid cosmetic, the relative evaporation amount of water from the surface of the solid cosmetic is reduced, and the water-moist feeling of high mixing with water can be obtained while effectively suppressing the color change (i.e., color change) due to the concentration of astaxanthin. Further, it is presumed that the solid cosmetic of the present invention contains the hydrocarbon paraffin and water in an amount of 25 to 40 mass% based on the total mass of the solid cosmetic, and the solid cosmetic is excellent in shape stability during application.
The above presumption is not to be construed as limiting the water-in-oil type cosmetic of the present invention, but is described as an example.
On the other hand, the water-in-oil type emulsion cosmetic described in patent document 1 is not concerned with suppression of color change, shape stability at the time of application, and a feeling of water-wetting. The solid cosmetic described in patent document 2 does not assume the presence of water, and does not cause the astaxanthin to be colored strongly due to evaporation of water over time.
Hereinafter, each component contained in the solid cosmetic of the present invention will be described in detail.
[ astaxanthin ]
The solid cosmetic of the present invention contains astaxanthin. Astaxanthin includes at least one of astaxanthin and a derivative of astaxanthin such as an ester. In the present invention, these are collectively referred to as "astaxanthin" unless otherwise specified.
As astaxanthin, any astaxanthin obtained by a conventional method can be used in addition to astaxanthin obtained from natural products such as plants, algae, crustaceans, and bacteria.
Examples of natural astaxanthin include Phaffia rhodozyma, haematococcus pluvialis, marine bacteria (e.g., paracoccus), krill, adonis (Pogostemon grass), and the like. Further, an extract from a culture can be mentioned.
Astaxanthin may also be contained in the solid cosmetic of the present invention as an astaxanthin-containing oil isolated from an astaxanthin-containing natural product or obtained as an extract.
The astaxanthin may be appropriately purified or extracted from a natural product containing astaxanthin as needed, or may be a synthetic product.
As astaxanthin or astaxanthin-containing oil, a substance extracted from haematococcus pluvialis (also referred to as a haematococcus pluvialis extract) and a pigment derived from krill (also referred to as a krill extract) are particularly preferable from the viewpoint of quality or productivity.
As astaxanthin or astaxanthin-containing oil, commercially available haematococcus pluvialis extract and krill extract can be used. Commercially available products of Haematococcus pluvialis extract include, for example, FUJIFILM astaxanthin SS, FUJIFILM astaxanthin S, FUJIFILM astaxanthin 10OS, FUJIFILM astaxanthin 50S, FUJIFILM astaxanthin 10O, FUJIFILM astaxanthin 5O, fuji Chemical Industries Co., ltd., astareal (registered trademark) oil 50F, astareal (registered trademark) oil 5F of Ltd., toyo Koso Kagaku Co., ltd., bioAstin (registered trademark) SCE7 of Ltd. A commercially available product of krill extract can be obtained from, for example, ASTAX ST (trade name) by MARINE DAIOU co.
From the viewpoint of the effect expected by the inclusion of astaxanthin and the suppression of color change (specifically, the suppression of color depth), the content of astaxanthin is preferably 0.00001 to 0.002% by mass, more preferably 0.0001 to 0.001% by mass, and still more preferably 0.0001 to 0.0005% by mass, based on the total mass of the solid cosmetic.
The effect expected from the inclusion of astaxanthin is exhibited favorably by the content of astaxanthin being 0.00001% by mass or more based on the total mass of the solid cosmetic. When the content of astaxanthin is 0.002% by mass or less relative to the total mass of the solid cosmetic, the orange color of astaxanthin is not too intense, and visibility of intense coloring accompanying water evaporation is suppressed.
[ Water ]
The solid cosmetic of the present invention contains water at a content of 25 to 40% by mass based on the total mass of the solid cosmetic.
The water is not particularly limited as long as it is water that can be applied to cosmetics.
From the viewpoint of achieving both the moist feeling and the suppression of color change, the content of water is 25 to 40% by mass, more preferably 30 to 40% by mass, based on the total mass of the solid cosmetic.
The content of water is 25 mass% or more based on the total mass of the solid cosmetic, and the water-wet feeling can be exhibited well, and 40 mass% or less, whereby the relative evaporation amount of water can be reduced, the concentration of astaxanthin can be suppressed, and the color change can be reduced.
[ Hydrocarbon Paraffin ]
The solid cosmetic of the present invention contains hydrocarbon paraffin.
The solid cosmetic composition of the present invention contains hydrocarbon wax, and thus can improve the shape stability during application.
Examples of the hydrocarbon paraffin include ceresin, paraffin, microcrystalline wax, polyethylene wax, vaseline, and fischer-tropsch wax.
The hydrocarbon wax may be a commercially available product or a synthetic product.
The hydrocarbon paraffin preferably contains ceresin wax from the viewpoint of shape stability at the time of coating.
Ceresin is a mixture of linear and branched alkanes and comprises paraffin wax or microcrystalline wax, etc. Pure ceresin is highly purified by mixing a linear alkane and a branched alkane at an appropriate mixing ratio, and therefore can contribute to further improvement in hardness of a solid cosmetic and improvement in shape stability during application. As the ceresin wax, a mixture of paraffin wax, microcrystalline wax and high-melting microcrystalline wax is preferable.
The solid cosmetic may contain one kind of hydrocarbon paraffin alone or two or more kinds of hydrocarbon paraffin.
From the viewpoint of shape stability at the time of application, the content of the hydrocarbon wax is preferably 3.5% by mass or more, more preferably 4.0% by mass or more, and further preferably 4.5% by mass or more, relative to the total mass of the solid cosmetic. The upper limit of the content of the hydrocarbon wax is preferably 10% by mass or less, more preferably 8% by mass or less, and even more preferably 7% by mass or less, from the viewpoints of shape stability at the time of application and hardness of the solid cosmetic. If the amount of the hydrocarbon wax is too large, the solid cosmetic tends to be hard and not to be applied to the skin at a desired application amount.
[ wax ]
The solid cosmetic of the present invention preferably contains wax from the viewpoint of satisfying both shape stability and water-moist feeling upon application.
The solid cosmetic may contain one kind of wax alone or two or more kinds of waxes.
The wax may be derived from plants or animals. Examples of the wax include beeswax, candelilla wax, spermaceti wax, carnauba wax, candelilla wax, rice bran wax, and montan wax.
Waxes are lower in melting point and are softer and more polar than hydrocarbon paraffins. Therefore, the solid cosmetic composition of the present invention containing wax is also advantageous in the case where the solid cosmetic composition contains a moisturizing component.
From the viewpoint of satisfying both the shape stability and the water-wet feeling upon coating, the content ratio of the hydrocarbon paraffin wax to the wax (hydrocarbon paraffin wax: wax) is preferably in the range of 2.5 to 10.
From the viewpoint of satisfying both the shape stability and the water-moist feeling at the time of application, the content of the wax is preferably 0.1 to 5% by mass, more preferably 0.1 to 4% by mass or more, and further preferably 0.1 to 3% by mass, based on the total mass of the solid cosmetic.
From the viewpoint of water-wet feeling, the wax preferably contains candelilla wax.
Candelilla wax contains 40 to 50 mass% of hydrocarbons, and the remainder is composed of esters and higher alcohols. Therefore, candelilla wax has high compatibility with hydrocarbon paraffin and has affinity. The Candelilla wax is a wax obtained by extraction and purification from the stem of Candelilla (scientific name: euphorbia antiphysilica = euphoria cerifera english name: candelilla) which is a plant of the family euphorbiaceae. The candelilla is a wax component having excellent moisture retention properties, as is known from the inhibition of water evaporation, by secreting a wax component on the surface of leaves.
[ other oils ]
The solid cosmetic of the present invention may contain other oil agents than the hydrocarbon wax and the wax.
Examples of the other oils include oils corresponding to hydrocarbon waxes and waxes, among oils belonging to hydrocarbon oils, ester oils, silicone gels, higher fatty acids, higher alcohols, and oils belonging to natural animals and plants.
Examples of the hydrocarbon oil include liquid paraffin, isoparaffin, ethylene-propylene copolymer, hydrogenated polyisobutene, squalane, and the like.
Examples of the ester oil include pentaerythritol tetraethylhexanoate, cetyl ethylhexanoate, di (phytosterol/octyldodecanol) lauroyl glutamate, triisostearin (triisostearin), glyceryl stearate, glyceryl diisostearate, glyceryl triisooctanoate (triethylhexanoin), (phytosterol/behenyl) dilinoleate, (phytosterol/isostearyl/cetyl/stearyl/behenyl) dilinoleate, isopropyl palmitate, phytosterol macadamia fatty acid ester, pentaerythritol tetrakis (behenate/benzoic acid/ethylhexanoate), ethylhexyl palmitate, myristyl myristate, tripropylene glycol dipentanoate, isotridecanol isononanoate, pentaerythritol abietate, glycerol (behenate/behenate), polyglycerol-10 (behenate/behenate), and polysorbate 60.
Examples of the silicone oil include chain polysiloxanes such as dimethylpolysiloxane (polydimethylsiloxane), methylphenylpolysiloxane, decamethyltetrasiloxane and methylhydrogenpolysiloxane, cyclic polysiloxanes such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane and tetramethyltetrahydrocyclotetrasiloxane, and octylmethicone.
The silicone gel is a silicone crosslinked product in which silicone chains constituting a main chain skeleton are crosslinked with each other by a polyether chain, a polyglycerol chain, a silicone chain, or the like. Depending on the structure of the chain used for crosslinking, there are various types such as polyether-modified silicone gel, polyglycerol-modified silicone gel, polyether-alkyl co-modified silicone gel, and polyglycerol-alkyl co-modified silicone gel.
Specific examples of the silicone gel include (polydimethylsiloxane/(PEG-10/15) crosspolymer, (PEG-15/lauryl polydimethylsiloxane) crosspolymer, (PEG-10/lauryl polydimethylsiloxane) crosspolymer, (PEG-15/lauryl dimethiconoethyl polydimethylsiloxane) crosspolymer, (polydimethylsiloxane/polyglycerin-3) crosspolymer, (lauryl polydimethylsiloxane/polyglycerin-3) crosspolymer, (polyglycerin-3/lauryl dimethiconoethyl polydimethylsiloxane) crosspolymer, (dimethicone/vinyl dimethicone) crosspolymer, (dimethicone/phenyl vinyl dimethicone) crosspolymer, (vinyl dimethicone/lauryl dimethicone) crosspolymer, and (lauryl dimethicone ethyl dimethicone/bisvinyl dimethicone) crosspolymer.
Examples of the higher fatty acid include stearic acid, lauric acid, myristic acid, and behenic acid.
Examples of the higher alcohol include cetyl alcohol, stearyl alcohol, lauryl alcohol, and behenyl alcohol.
Examples of the natural animal and vegetable oils include jojoba seed oil, avocado oil, almond oil, olive oil, cocoa butter, sesame oil, wheat germ oil, safflower oil, shea butter, sea turtle oil, camellia oil, peach kernel oil, castor oil, grape oil, macadamia nut oil, coconut oil, rosehip oil, soybean oil, egg yolk oil, hydrogenated castor oil, hydrogenated coconut oil, hydrogenated cocoa butter, hydrogenated sea turtle oil, hydrogenated mink oil, beef tallow, mink oil, and Lanolin (so-called Lanolin).
The content of other oil agents can be determined as appropriate in accordance with the mode aimed at the solid cosmetic of the present invention which is a water-in-oil type.
The solid cosmetic may contain one or more kinds of other oils.
[ vitamin E ]
The solid cosmetic of the present invention preferably contains vitamin E from the viewpoint of improving the stability of astaxanthin. In the present invention, vitamin E is not included in one form of the oil.
In a water-in-oil type solid cosmetic containing astaxanthin, orange color tends to decrease due to deterioration of astaxanthin. Therefore, on the surface of the water-in-oil type solid cosmetic containing astaxanthin, which is in contact with the outside air, a color concentration due to the concentration of astaxanthin due to the evaporation of water is developed, and orange color is reduced in the inside, so that the difference in color tone between the surface and the inside of the solid cosmetic is increased. On the other hand, when the solid cosmetic of the present invention contains vitamin E, the stability of astaxanthin is improved, and the orange color in the solid cosmetic can be suppressed from decreasing, so that the color change of the solid cosmetic can be more effectively suppressed.
In the present invention, "vitamin E" is a generic term referring to various tocopherols and tocotrienols largely comprising plants and hub-type organisms. It is a concept including tocopherol, tocotrienol, their salts and derivatives.
Examples of the compound group consisting of tocopherol or a derivative thereof include d- α -tocopherol, d- β -tocopherol, d- γ -tocopherol, d- δ -tocopherol, l- α -tocopherol, l- β -tocopherol, l- γ -tocopherol, l- δ -tocopherol, dl- α -tocopherol, dl- β -tocopherol, dl- δ -tocopherol, tocopherol acetate, tocopherol succinate, tocopherol phosphate, tocopherol aspartate, tocopherol glutamate, tocopherol palmitate, tocopherol nicotinate, tocopherol linoleate, and polyethoxylated tocopherol, which are mixtures thereof.
The tocopherol may be a synthetic tocopherol.
In addition, these tocopherols and tocopherol derivatives can be Xu Deyan, which is acceptable in the fields of pharmaceuticals, cosmetics, and the like.
Examples of the compound group consisting of tocotrienols or derivatives thereof include α -tocotrienol, β -tocotrienol, γ -tocotrienol, δ -tocotrienol, and derivatives thereof, such as tocotrienol acetate, tocotrienol succinate, tocotrienol phosphate, tocotrienol aspartate, tocotrienol glutamate, tocotrienol palmitate, tocotrienol nicotinate, and polyethoxylated tocotrienols.
The tocotrienol can be a synthetic tocotrienol.
These tocotrienols and tocotrienol derivatives may be Xu Deyan, which is acceptable in the fields of pharmaceuticals, quasi drugs, cosmetics, and the like.
The solid cosmetic may contain one kind of vitamin E alone or two or more kinds of vitamin E.
From the viewpoint of improving the stability of astaxanthin, the content of vitamin E is preferably 0.01% by mass or more, more preferably 0.01% by mass to 0.5% by mass, and still more preferably 0.01% by mass to 0.3% by mass, based on the total mass of the solid cosmetic.
[ Metal oxide ]
The solid cosmetic of the present invention may contain a metal oxide from the viewpoint of suppressing a color change of the surface. In the case where the metal oxide is contained, the color change caused in the solid cosmetic can be made inconspicuous by scattering and coloring of light.
The metal oxide can be selected from known metal oxides that can be used in solid cosmetics. Examples of the metal oxide include titanium oxide, zinc oxide, iron oxide, and aluminum hydroxide. The metal oxide may be a composite powder of an inorganic substance or an organic substance. Examples of the inorganic substance or organic substance used in the composite powder include silica, polymethyl methacrylate (PMMA), mica, talc, and the like.
When the metal oxide is contained, the content of the metal oxide is preferably 5% by mass or less, more preferably 0.1% by mass to 5% by mass, and still more preferably 0.1% by mass to 3% by mass, based on the total mass of the solid cosmetic. The solid cosmetic may be a form not containing the metal oxide, that is, the content of the metal oxide may be 0 mass% with respect to the total mass of the solid cosmetic.
[ Silicone type surfactant ]
The solid cosmetic of the present invention preferably contains a silicone surfactant.
The silicone surfactant is not particularly limited as long as it can be used in the fields of pharmaceuticals, quasi drugs, and cosmetics.
Examples of the silicone surfactant include polyether-modified silicone surfactants, polyether-alkyl co-modified silicone surfactants, polyglycerol-modified silicone surfactants, and polyglycerol-alkyl co-modified silicone surfactants.
Specific examples of the silicone surfactant include polyether-modified silicone surfactants such as PEG-10 polydimethylsiloxane, PEG-3 polydimethylsiloxane, PEG-12 polydimethylsiloxane, PEG/PPG-19/19 polydimethylsiloxane, silicone 13, and PEG-9 polydimethylsiloxane;
polyether-alkyl co-modified silicone surfactants such as methylpolysiloxane, cetylmethylpolysiloxane, poly (oxyethylene-oxypropylene) methylpolysiloxane copolymer, lauryl PEG-9 polydimethylsiloxyethyl polydimethylsiloxane, etc.;
polyglycerin-modified silicone surfactants such as dibutyl dimethicone polyglycerin-3, polyglycerin-3 dimethicoethyl dimethicone, polyglycerin-3 disiloxane dimethicone, and the like; and
polyglycerin-alkyl group co-modified silicone surfactants such as lauryl polyglycerin-3 dimethiconoethyl dimethicone.
In the present invention, "PEG" means polyethylene glycol, and "PPG" means polypropylene glycol.
The silicone surfactant may be a commercially available product or a synthetic product.
The solid cosmetic may contain one silicone surfactant alone or two or more kinds of silicone surfactants.
The content of the silicone surfactant is preferably 1% by mass or more, more preferably 1.0% by mass to 5.0% by mass, even more preferably 1.5% by mass to 4.0% by mass, and particularly preferably 2.0% by mass to 3.0% by mass, based on the total mass of the solid cosmetic, from the viewpoint of uniformity of the oil phase.
[ ultraviolet light absorber ]
The solid cosmetic of the present invention preferably contains an ultraviolet absorber. The ultraviolet absorber is preferably an organic compound having an action of absorbing ultraviolet rays.
The ultraviolet absorber may be an ultraviolet absorber (hereinafter, also referred to as Sup>A uvSup>A absorber) that absorbs ultraviolet light in the UV-Sup>A region (i.e., sup>A wavelength of 320nm or more and 400nm or less), an ultraviolet absorber (hereinafter, also referred to as Sup>A UVB absorber) that absorbs ultraviolet light in the UV-B region (i.e., sup>A wavelength of 280nm or more and less than 320 nm), or an ultraviolet absorber having both functions of Sup>A uvSup>A absorber and Sup>A UVB absorber.
The solid cosmetic of the present invention may contain only one kind of ultraviolet absorber, or may contain two or more kinds. As a preferable combination of the ultraviolet absorber, a combination of one or more kinds of UVA absorbers and one or more kinds of UVB absorbers can be cited, but the combination is not limited thereto.
The solid cosmetic of the present invention can contain an organic ultraviolet absorber which can be used in the field of quasi drugs or cosmetics. Examples of the organic ultraviolet absorber include those described in various known documents. For example, the compound groups described in paragraphs 0018 and 0021 of Japanese patent No. 6359947 can be used as the organic ultraviolet absorber contained in the solid cosmetic of the present invention.
Examples of the organic ultraviolet absorber include, but are not limited to, organic ultraviolet absorbers such as triazine compounds, benzyloxy compounds, anthracene compounds, salicylic acid compounds, cinnamyl acid compounds, benzotriazole compounds, dibenzoylmethane compounds, benzophenone compounds, benzimidazole compounds, benzoylpiperazine compounds, dibenzoylmethane compounds, benzoxazole compounds, phenyl acrylate compounds, imidazoline compounds, camphor compounds, and benzylidene malonate compounds.
In the solid cosmetic of the present invention, it is preferable that at least the oil phase contains an ultraviolet absorber, but depending on the type thereof, it may be contained in either of the oil phase and the aqueous phase. From the viewpoint of improving the ultraviolet shielding performance, it is also preferable to include both the oil phase and the water phase.
From the viewpoint of obtaining the ultraviolet absorbing and shielding effect, the content of the ultraviolet absorber contained in the solid cosmetic of the present invention is preferably 5% by mass or more, more preferably 5% by mass to 12% by mass, even more preferably 6% by mass to 11% by mass, and even more preferably 7% by mass to 10% by mass, based on the total mass of the solid cosmetic.
[ other Components ]
The solid cosmetic of the present invention may contain other components than the aforementioned components.
Other components that can be used in the field of cosmetics or quasi drugs may be used, and examples thereof include aqueous media other than water (lower alcohols such as ethanol; polyhydric alcohols such as glycerin and 1,3-butanediol), other surfactants, preservatives (phenoxyethanol, methyl paraben, and the like), pH adjusters, emollients, moisturizers, antioxidants other than vitamin E, whitening agents, colorants, fragrances, and the like.
[ ratio of oil phase to aqueous phase ]
In the solid cosmetic, the ratio of the oil phase to the aqueous phase (oil phase: aqueous phase) is, for example, preferably from 65 to 35, more preferably from 60 to 40, and further preferably from 55.
[ form of solid cosmetic ]
The solid cosmetic of the present invention has a hardness capable of being molded, and has a form that maintains a molded state even when the molded product is left to stand at room temperature (25 ℃) without being stored in a container.
[ hardness of solid cosmetic ]
The solid cosmetic of the present invention preferably has a press-in hardness of 10g or more, more preferably 15g or more, and still more preferably 20g or more at room temperature (25 ℃).
The hardness of the solid cosmetic of the present invention is measured for penetration hardness when it is too hard to measure indentation hardness. The penetration hardness of the solid cosmetic at room temperature (25 ℃) is preferably 30g to 200g.
For example, a rheometer (manufactured by RHEOTECH) can be used under the measurement conditions (adapter: disk shape)
Speed: 6cm/min, depth: 20 mm) indentation hardness (g/cm) 2 ). The measurement conditions (adaptor:
rod-shaped adapter, speed: 6cm/min, depth: 15 mm) determination of the hardness (g/cm) of penetration 2 )。
[ Container for solid cosmetic ]
The container for containing the solid cosmetic of the present invention is not particularly limited as long as it can contain the solid cosmetic. As the container, a push-out container (e.g., lip stick container) is preferable. The solid cosmetic of the present invention can be filled in a container such as a can-shaped container or a compact container.
Examples of the material of the container include metal, plastic, and glass. In one embodiment, a metal container can be used as the container. In the case of a metal container, the entire container may be made of metal, or may be made of other materials such as metal and plastic.
In one embodiment, the solid cosmetic of the present invention is preferably a solid cosmetic contained in a metal container from the viewpoint of effectively suppressing evaporation of water. The metal container is preferable because not only evaporation of water from the opening of the container but also an effect of suppressing evaporation of water is more enhanced than a plastic container in which permeation of water from the wall surface of the container is also generated. Examples of the form of the metal container include a metal push-out container.
Even when a metal container (e.g., a push-out container) is used, moisture contained in the contents in the container may evaporate from a gap between the body and the lid of the container to the outside of the container over time. However, in the solid cosmetic of the present invention, the water-in-oil composition itself forming the solid cosmetic effectively suppresses the evaporation of water, and therefore, when a metal container is used, an excellent effect of suppressing the color change is obtained in cooperation with the effect of suppressing the evaporation of water possessed by the metal container itself.
[ use of solid cosmetic ]
Examples of the use of the solid cosmetic of the present invention include skin care cosmetics, makeup cosmetics, hair cosmetics, and the like. In one embodiment, the solid cosmetic of the present invention is preferably a skin care cosmetic.
[ method for producing solid cosmetic ]
The method for producing the solid cosmetic of the present invention is not particularly limited, and the solid cosmetic can be produced by a known method for producing a water-in-oil solid cosmetic.
One of preferred methods for producing the solid cosmetic of the present invention preferably includes the steps of:
heating and mixing an oil phase component containing astaxanthin, hydrocarbon paraffin and other optional components to obtain an oil phase composition;
a step for obtaining an aqueous phase composition by mixing aqueous phase components containing water and other optional components; and
and a step of mixing the heated oil phase composition with a separately heated aqueous phase composition to emulsify the composition.
The heating temperature in each step can be, for example, 80 to 90 ℃.
As the emulsification mixing mechanism, any known mechanism may be used, and for example, a homomixer can be used.
The conditions for emulsification may be determined by adjusting the shear rate, the treatment time, and the like in accordance with the viscosity, the size of emulsified particles, and the like required for the water-in-oil composition for forming a solid cosmetic.
The obtained water-in-oil composition can be appropriately filled in a container in a fluid state and solidified by cooling, thereby producing the solid cosmetic of the present invention.
Examples
Hereinafter, the solid cosmetic of the present invention will be described in more detail with reference to examples, but the solid cosmetic of the present invention is not limited to the following examples.
Examples 1 to 19 and comparative examples 1 to 3
The components described in the oil phase column in table 1, table 2, table 3, or table 4 were heated and mixed at 80 ℃.
The ingredients described in the column for aqueous phase in table 1, table 2, table 3 or table 4 were mixed to prepare an aqueous phase composition, and the obtained aqueous phase composition was heated to 80 ℃.
Mixing the aqueous phase composition with the oil phase composition, while maintaining the temperature at 80 ℃ in a homomixer at a rotation speed of: an emulsion was obtained by applying a shearing force and stirring at 3000rpm (revolutions per minute, the same applies hereinafter) for 10 minutes. The resulting emulsion was filled into a container at 70 ℃. + -. 10 ℃. When the unevenness is generated on the upper portion of the filler, a process of melting and flattening by a heating device (a dryer or the like) is added. As the container, a lip stick container (metal push-out container) was used.
From the above, a stick-shaped solid cosmetic contained in the lip stick container was obtained.
The kinds and content (mass%) of each component used in examples 1 to 19 and comparative examples 1 to 3 are shown in the composition columns of table 1, table 2, table 3, or table 4.
In table 1, table 2, table 3 or table 4, "-" in the composition column indicates that the component is not contained.
In table 1, table 2, table 3, or table 4, the components indicated in the term "oil agent" are oil agents other than hydrocarbon paraffin and wax.
[ evaluation ]
Using the obtained solid cosmetic, each evaluation was made on color change, shape stability at the time of application, and water-wet feeling. Details of the evaluation are as follows. The results are shown in tables 1, 2, 3 and 4.
(color change)
The obtained solid cosmetic was put in a lip stick container and kept at 50 ℃ for 2 weeks.
The solid cosmetic after a lapse of time was pushed out from the container, presence or absence of color change was visually observed by 5 professional evaluators, and color change from the solid cosmetic before a lapse of time was evaluated according to 4-scale scores shown in the following evaluation criteria. Then, the total of 5 evaluation scores was averaged, and the numerical value obtained by rounding the 1 st digit of the decimal point was used as the evaluation result of the color change.
In addition, the color tone immediately after the preparation of the solid cosmetic for evaluation was uniform, and there was no color unevenness.
In this evaluation, the color change was visually recognized as color unevenness in a state where the color tone of the distal end portion side (i.e., the opening portion side of the container) which easily comes into contact with the outside air of the stick-like solid cosmetic was darker than the color tone of the non-distal end portion side.
If the evaluation scale is "4" or "3", the evaluation scale is a practically acceptable level, and "4" is more preferable.
Evaluation results-
4: no color change was seen.
3: some color change was seen, but not noticed.
2: a color change is seen.
1: a color change is clearly visible.
(shape stability at coating)
The solid cosmetic pushed out of the lip stick container by about 2mm (about μm) was applied by 5 professional evaluators while lightly pressing the front wrist part of the evaluators with the evaluation standard (about μm) of the degree of slight bending of the skin, and the shape stability of the solid cosmetic at the time of application was evaluated by 4-point scores shown in the following evaluation standard. Then, the total of 5 evaluation points was averaged, and the value obtained by rounding the 1 st position of the decimal point was used as the evaluation result of the shape stability at the time of coating.
The evaluation scale is "4" or "3", which is a practically acceptable level, and more preferably "4".
Evaluation criteria-
4: can be applied satisfactorily without breaking during application.
3: the coating was slightly broken by pressing and adhered to the outside of the container, but there was no problem in coating.
2: the solid cosmetic broken by the pressing at the time of application is transferred to the application surface, and the desired application cannot be performed.
1: it cannot be molded into a solid state or is seriously damaged by pressing during application.
(moist feeling)
5 professional evaluators applied the solid cosmetic pushed out from the lip stick container to the face, and evaluated the feeling of wetness according to a 4-point scale shown in the following evaluation criteria. Then, the total of 5 evaluation points was averaged, and the value obtained by rounding the 1 st position of the decimal point was used as the evaluation result of the water-wet feeling. The evaluation scale is "4" or "3", which is a practically acceptable level, and more preferably "4".
Evaluation criteria-
4: a moist sensation was felt.
3: a water-moist sensation was slightly felt.
2: no sense of wetness was felt.
1: no water-moist sensation was felt.
[ Table 1]
[ Table 2]
[ Table 3]
[ Table 4]
As shown in tables 1, 2 and 3, the solid cosmetic compositions of examples 1 to 19 were excellent in the suppression of color change, shape stability during application, and feeling of moisturization.
In comparative example 1, the content of water was less than 25% by mass based on the total mass of the solid cosmetic, and the water touch feeling was not practically acceptable.
In comparative example 2, the content of water was more than 40% by mass based on the total mass of the solid cosmetic, and the color change and the shape stability at the time of application were not practically acceptable.
In comparative example 3, since the hydrocarbon wax was not contained, the shape stability at the time of coating was not practically acceptable.
[ examples 20 to 24]
With respect to each component described in table 5, a stick-shaped solid cosmetic housed in a lip stick container was obtained by the same production method as in examples 1 to 19 and comparative examples 1 to 3.
The kinds and content (mass%) of each component used in examples 20 to 24 are shown in the composition column of table 5.
In Table 5, "-" in the composition column means that the component is not contained.
The obtained solid cosmetic compositions were evaluated in the same manner as in examples 1 to 19 and comparative examples 1 to 3. The details of the evaluation are as described above. The results are shown in Table 5.
[ Table 5]
As shown in Table 5, the solid cosmetic compositions of examples 20 to 24 were excellent in the suppression of color change, the shape stability during application, and the feeling of moisturization.
In tables 1, 2, 3, 4 and 5, "%" represents "% by mass".
The following collectively shows the respective components shown in tables 1, 2, 3, 4 and 5.
< aqueous phase composition >
Water-
Water: distilled water
E, other components-
Glycerol (manufactured by Kao Corporation)
BG:1,3 butanediol (manufactured by DAICEL CORPORATION)
Pentanediol [ Symrise Ltd ]
Nicotinamide [ trade name: nicotinamide PC, manufactured by DSM corporation)
Sodium chloride
Ethylhexyl glycerol [ SEIWA KASEI Co, ltd. ]
Phenoxyethanol [ manufactured by FUJIFILM Wako Pure Chemical Corporation ]
< oil phase composition >
Astaxanthin [ trade name: ASTAX-ST, MARINE DAIOU CO., LTD
Hydrocarbon paraffin wax (E &)
Pure ceresin
Paraffin wax
Microcrystalline wax
Polyethylene wax
Wax-
Candelilla wax
Carnauba wax
Beeswax (Cera flava)
Vitamin E &
Tocopherols
About metal oxide &
Titanium oxide
Zinc oxide
Oil solution-
Polydimethylsiloxane
Methylphenylpolysiloxane
Decamethyltetrasiloxane
Palmpurlin ethyl hexyl ester
Ultraviolet absorbent
Diethylamino hydroxybenzoyl hexyl benzoate [ UVA absorber, trade name: uvinul A Plus GranuLar, BASF Japan Ltd. ]
P-methoxycinnamic acid 2-ethylhexyl ester [ UVB absorber ]
Silicone surfactant-
PEG-9 Dimethylsiloxyethyl polydimethylsiloxane
E, other components-
Neopentyl glycol 2-ethylhexanoate
Trimethoxysilyloxy silicic acid
Crosslinked Silicone
Network silicone block copolymer
Perfume (Takasago International Corporation)
Example 25: water-in-oil type wood stick-shaped beauty lotion
A water-in-oil type wood stick cosmetic liquid having the following composition was prepared by a conventional method.
In the above formulation, ceresin wax comprising 3 components of paraffin wax, microcrystalline wax and high melting point microcrystalline wax is used.
The water-in-oil wood stick-type cosmetic liquid shown in example 25 was suppressed in color change, excellent in shape stability during application, and excellent in water-wet feeling.
Claims (8)
1. A water-in-oil type solid cosmetic comprising:
astaxanthin;
25 to 40 mass% of water with respect to the total mass of the water-in-oil type solid cosmetic; and
a hydrocarbon paraffin wax.
2. A water-in-oil solid cosmetic according to claim 1, wherein,
the content of the hydrocarbon paraffin is 3.5% by mass or more based on the total mass of the water-in-oil solid cosmetic.
3. A water-in-oil solid cosmetic as claimed in claim 1 or 2, further comprising a wax.
4. A water-in-oil solid cosmetic as claimed in claim 3, wherein,
the content ratio of the hydrocarbon paraffin wax to the wax is 2.5 to 10 on a mass basis.
5. A water-in-oil solid cosmetic as claimed in claim 3, wherein,
the wax comprises candelilla wax.
6. A water-in-oil solid cosmetic as claimed in claim 1 or 2, further comprising vitamin E.
7. A water-in-oil solid cosmetic as claimed in claim 1 or 2, wherein,
the hydrocarbon wax comprises ceresin wax.
8. The water-in-oil solid cosmetic according to claim 1 or 2, which is contained in a metal container.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021-091555 | 2021-05-31 | ||
| JP2021091555 | 2021-05-31 | ||
| JP2021-156078 | 2021-09-24 | ||
| JP2021156078 | 2021-09-24 | ||
| JP2021207249A JP2022184694A (en) | 2021-05-31 | 2021-12-21 | Water-in-oil type solid cosmetic |
| JP2021-207249 | 2021-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115475105A true CN115475105A (en) | 2022-12-16 |
Family
ID=84420491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210578704.1A Pending CN115475105A (en) | 2021-05-31 | 2022-05-25 | Water-in-oil type solid cosmetic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115475105A (en) |
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2022
- 2022-05-25 CN CN202210578704.1A patent/CN115475105A/en active Pending
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