Classifications

• • 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
• • 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
• • 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
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
• • 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
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
  • A61K8/89—Polysiloxanes
  • A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
• • 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
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
• • 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

Definitions

• the present invention relates to an oily solid composition containing air bubbles and a cosmetic containing the composition.
• Patent Document 1 describes a whipped oily composition containing a fluorine-treated powder having a specific contact angle and an oily component having a specific surface tension in a specific ratio.
• Patent Document 1 is a powder-in-oil (P / O) type cosmetic containing a fluorine-treated powder, and since the powder is highly blended, the amount of oil required for moisturizing is limited, and applicable formulations and formulations are available. There is a problem in that it is limited.
• An object of the present invention is to provide an oil-based solid composition and a cosmetic containing the composition, which can realize a new feel and a feeling of use not found in the prior art by containing air bubbles.
• a bubble-containing oily solid composition containing (A) a solid oily component at 25 ° C. and (B) a liquid oily component at 25 ° C., and having a bubble content of 2 to 55%.
• the present invention it is possible to stably contain bubbles in a solid base mainly containing oil, and a softer feel can be obtained as compared with a solid base containing no bubbles. It is possible to provide an oily solid composition containing bubbles that can realize a feel and a feeling of use.
• the bubble-containing oily solid composition of the present invention (hereinafter, also referred to as “oily solid composition”) contains a solid oily component (hereinafter, also referred to as “solid oily component”) at 25 ° C.
• the solid oily component is a component that plays a role of solidifying the pharmaceutical product at room temperature to make it non-fluid.
• the solid oil component is not particularly limited as long as it is usually blended in cosmetics, and wax can be preferably used. From the viewpoint of high temperature stability, the solid oily component preferably has a solidification start temperature of 60 ° C. or higher, more preferably 60 ° C. to 100 ° C. in the base.
• wax used in the present invention examples include carnauba wax, candelilla wax, polyethylene wax, beeswax, selecin, microcrystalline wax, solid paraffin, mokurou and the like. From the viewpoint of usability with a softer feel, it is preferable to contain a non-polar wax such as polyethylene wax, ceresin, microcrystalline wax, and solid paraffin, and polyethylene wax is particularly preferable. These waxes can be used in combination of one or more.
• the content of the solid oily component in the oily solid composition is preferably 3% by mass to 25% by mass, more preferably 3% by mass to 15% by mass, from the viewpoint of solidifying the preparation.
• liquid oily component (hereinafter, also referred to as “liquid oily component”) at 25 ° C.
• the kinematic viscosity of the liquid oil component is preferably 15 mm 2 / s or more, more preferably 20 mm 2 / s or more, and particularly preferably 100 mm 2 / s or more. It is preferably 48000 mm 2 / s or less, more preferably 20000 mm 2 / s or less, still more preferably 5000 mm 2 / s or less, and particularly preferably 500 mm 2 / s or less.
• the kinematic viscosity of the liquid oil component preferably means the kinematic viscosity of the entire liquid oil component other than the solid oil component contained in the oil solid composition.
• the kinematic viscosity of the entire liquid oily component is the kinematic viscosity of the JIS standard (K 2283: 2000), which is one of the methods for estimating the kinematic viscosity and the mixing ratio. Based on the plotting method, the kinematic viscosity can be calculated using the kinematic viscosity-temperature chart. Further, in the present invention, the kinematic viscosity of the liquid oil component means the kinematic viscosity at 37 ° C.
• the liquid oily component may be an oil component usually used in cosmetics, and is not particularly limited. Specific examples include liquid fats and oils such as avocado oil, camellia oil, macadamia nut oil, mink oil, olive oil, castor oil, jojoba oil, triglycerin and glycerin trioctanoate; carbonization of liquid paraffin, squalane, paraffin, ceresin, vaseline and squalane.
• liquid fats and oils such as avocado oil, camellia oil, macadamia nut oil, mink oil, olive oil, castor oil, jojoba oil, triglycerin and glycerin trioctanoate
• carbonization of liquid paraffin, squalane, paraffin, ceresin, vaseline and squalane are examples of liquid paraffin, squalane, paraffin, ceresin, vaseline and squalane.
• Hydrogen oil higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, 12-hydroxystearic acid, isostearic acid, linoleic acid, linoleic acid; lauryl alcohol, cetyl alcohol, stearyl alcohol, Higher alcohols such as behenyl alcohol, oleyl alcohol, monostearylglycerol ether, monopalmitylglycerol ether, cholesterol, phytosterol, isostearyl alcohol; isopropyl myristate, cetyl octanate, octyldodecyl myristate, butyl stearate, decyl oleate , Dioctanoate ethylene glycol, diisostearyl malate, trimethylolpropane trioctanoate, trimethylolpropane triisostearate, pentaolithritol t
• silicone oils such as silicone resins, silicone rubbers, and various modified polysiloxanes (amino-modified polysiloxanes, polyether-modified polysiloxanes, alkyl-modified polysiloxanes, fluorine-modified polysiloxanes, etc.), and one or two selected from these. More than a seed can be used. From the viewpoint of usability as a product after containing bubbles, silicone oil or hydrocarbon oil is preferable, and trimethylpentaphenyltrisiloxane and diphenyldimethicone are particularly preferable as the silicone oil. These liquid oily components may be used alone or in combination of two or more. When two or more kinds of liquid oily components are used, the kinematic viscosities of the entire liquid oily components may be appropriately blended so as to satisfy the above range.
• the content of the liquid oily component in the oily solid composition is preferably 97% by mass or less from the viewpoint of solidity maintenance.
• the oily solid composition of the present invention can contain various arbitrary components depending on the intended use as long as the effects of the present invention are not impaired.
• various components usually used in cosmetics may be appropriately blended as long as the effects of the present invention are not impaired.
• the powder component that can be blended is a powder component that is widely used in cosmetics and the like.
• specific examples include inorganic powders such as talc, kaolin, mica, silica, and zeolite; polyamide resin powder (nylon powder), polyethylene powder, polymethyl methacrylate powder, polystyrene powder, and copolymer resin powder of styrene and acrylic acid.
• Organic powders such as cellulose powder; Inorganic white pigments such as titanium dioxide and zinc oxide; Inorganic red pigments such as iron oxide (Bengala); Inorganic yellow pigments such as yellow iron oxide and ocher; Black iron oxide, carbon black and the like Black pigments; Inorganic green pigments such as chromium oxide, chromium hydroxide, cobalt titanate; Inorganic blue pigments such as ultramarine and dark blue; Titanium oxide coated mica, colored titanium oxide coated mica, bismuth oxychloride, fish scale foil, etc.
• Inorganic white pigments such as titanium dioxide and zinc oxide
• Inorganic red pigments such as iron oxide (Bengala)
• Inorganic yellow pigments such as yellow iron oxide and ocher
• Inorganic green pigments such as chromium oxide, chromium hydroxide, cobalt titanate
• Inorganic blue pigments such as ultramarine and dark blue
• Pearl pigments metal powder pigments such as aluminum powder and copper powder; red 201, red 202, red 204, red 205, red 220, red 226, red 228, red 405, orange 203, Organic pigments such as orange 204, yellow 205, yellow 401, and blue 404; red 3, red 104, red 106, red 227, red 230, red 401, red 505, orange.
• organic pigments such as zirconium, barium or aluminum lakes such as 205, Yellow 4, Yellow 5, Yellow 202, Yellow 203, Green 3 and Blue 1.
• the content of the powder component is preferably 25% by mass or less from the viewpoint of easily obtaining a new feel and a feeling of use.
• the bubble-containing oily solid composition of the present invention has a bubble content of 2 to 55%. By satisfying the bubble content, a new feel and usability can be realized. Specifically, when the oily solid composition touches a finger, the feeling of touching the whipped cream is obtained together with the feeling of bubbles contained in the composition.
• the bubble content is preferably 5 to 50%, more preferably 5 to 40%, and particularly preferably 20 to 40%. In the present invention, the bubble content is calculated as follows.
• Bubble content (X / Y) x 100 (%)
• X Mass of the bubble-containing oil-based solid composition X of the present invention per unit volume
• Y The composition of the bubble-containing oil-based solid composition X is the same as that of the bubble-containing oil-based solid composition X, and the mass of the bubble-free oil-based solid composition Y per unit volume.
• the same compounding components as those of the bubble-containing oily solid composition X are stirred and mixed while heating at a temperature higher than the solidification start temperature of the solid oily component, and after the stirring is stopped, the mixture is cooled to room temperature. It is manufactured by doing.
• the solid oily component (A) forms a curd house structure at 25 ° C.
• the card house structure is a structure formed by taking a crystal structure of a solid oil component (particularly wax), and can be confirmed by a scanning electron microscope (SEM). Since the solid oil component forms a card house structure, it has no fluidity even at high temperatures and can maintain a solid shape, and at the same time, bubbles can be stably retained in the product.
• the bubble-containing oily solid composition of the present invention is useful, for example, as a cosmetic.
• cosmetics include lipsticks, hand creams, hair creams and the like.
• the oily solid composition of the present invention can be produced, for example, by the following method.
• Step 1 A solid oily component (A) at 25 ° C. and a liquid oily component (B) at 25 ° C. are mixed under heating to obtain a fluid.
• the heating conditions may be any temperature higher than the solidification start temperature of the solid oily component, preferably 70 to 100 ° C., and more preferably 90 to 100 ° C.
• the optional component may be added from the beginning, or may be added when the oily component is completely mixed.
• Step 2 The fluid obtained in Step 1 is agitated to contain air bubbles.
• the stirring conditions for example, when 100 g is produced, it is preferable to carry out the stirring with a stirring blade having a diameter of 4 to 6 cm at a rotation speed of 2000 to 3000 rpm for 2 to 5 minutes. After sufficiently stirring and the desired amount of bubbles is reached, the fluid is cooled to a temperature equal to or lower than the solidification start temperature of the solid oil component (A) to obtain the bubble-containing solid oil composition of the present invention.
• the stirring of the fluid is stopped when the temperature of the fluid is equal to or lower than the solidification start temperature and higher than room temperature. After stopping stirring, cool to room temperature. At a temperature below the solidification start temperature and higher than room temperature, the solid oily component does not become completely solid but is in a semi-solid state. By stopping the stirring in a state where the oily composition contains bubbles and the fluidity remains, a crystal structure (cardhouse structure) of the solid oily component is formed while holding the bubbles when cooled. More preferably, the stirring is stopped when the temperature of the fluid is 3 to 15 ° C. lower than the solidification start temperature of the solid oily component, and more preferably 5 to 10 ° C., and the mixture is cooled to room temperature.
• the solid oily composition may be processed into a desired shape after being completely solidified, and when the fluid contains air bubbles, the fluid is filled in a container having a desired shape and cooled to solidify. You may let me.
• Examples 1-1 to 1-10, Comparative Examples 1-1 to 1-3> Each component shown in Table 1 was put into a stirrer at a ratio shown in Table 1 and an total amount of 100 g, heated to 95 ° C., and stirred and mixed at 2000 rpm for 3 minutes with a stirring blade having a diameter of 4 cm. When the mixture was completely dissolved, heating was stopped, and the mixture was stirred while cooling. After stopping stirring at the stirring end temperature shown in Table 1, the mixture was cooled to room temperature by allowing to cool to obtain a bubble-containing solid oily composition.
• Bubble content (X / Y) x 100 (%)
• X Mass per unit volume of the composition of the example
• Y The same amount of the solid oil component and the liquid oil component as in the composition of the example are used, put into a stirrer, heated to 95 ° C., and have a diameter of 4 cm. The mixture was stirred and mixed at 2000 rpm for 3 minutes with a stirring blade. When it is completely dissolved, heating and stirring are stopped, and the composition is cooled to room temperature and obtained by mass per unit volume.
• the kinematic viscosity of the liquid oil component at 37 ° C. was measured by a leometer.
• one of the methods for estimating the kinematic viscosity and mixing ratio of Annex 1 (specified) of JIS standard (K 2283: 2000) from the measured values of the kinematic viscosities of each liquid oily component was calculated using the kinematic viscosity-temperature chart.
• the usability of the composition was evaluated by a sensory evaluation when the surface was rubbed with the index finger, and D or higher was regarded as acceptable.
• E It does not solidify.
• Examples 2-1 to 2-6, Examples 3-1 to 3-4, Examples 4-1 to 4-15> A bubble-containing solid oily composition was obtained in the same manner as in Example 1-1 except that the compounding components and their ratios were changed to the components and ratios shown in Tables 2 to 4. The evaluation results are shown in Tables 2 to 4.
• the bubble content changes by changing the ratio of the solid oil component and the liquid oil component.
• the usability and the difficulty of removing bubbles are good, and when the bubble content is 30% or more, the usability, the fluidity and the difficulty of removing bubbles are balanced. Good results were obtained.
• the bubble-containing solid oily composition of the present invention is useful for cosmetics and the like.

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• Health & Medical Sciences (AREA)
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• Dermatology (AREA)
• Chemical & Material Sciences (AREA)
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• 2021
  • 2021-11-17 WO PCT/JP2021/042340 patent/WO2022107829A1/ja not_active Ceased
  • 2021-11-17 JP JP2022563811A patent/JP7783189B2/ja active Active

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