WO2023080239A1 - 水系液体化粧料 - Google Patents
水系液体化粧料 Download PDFInfo
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- WO2023080239A1 WO2023080239A1 PCT/JP2022/041410 JP2022041410W WO2023080239A1 WO 2023080239 A1 WO2023080239 A1 WO 2023080239A1 JP 2022041410 W JP2022041410 W JP 2022041410W WO 2023080239 A1 WO2023080239 A1 WO 2023080239A1
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- liquid cosmetic
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- cosmetic
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- 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
- A61Q1/02—Preparations containing skin colorants, e.g. pigments
- A61Q1/10—Preparations containing skin colorants, e.g. pigments for eyes, e.g. eyeliner, mascara
-
- 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
- A61K8/04—Dispersions; Emulsions
- A61K8/06—Emulsions
-
- 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
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
-
- 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
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
-
- 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
- A61K8/33—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing oxygen
- A61K8/34—Alcohols
- A61K8/345—Alcohols containing more than one hydroxy group
-
- 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
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8147—Homopolymers or copolymers of acids; Metal or ammonium salts thereof, e.g. crotonic acid, (meth)acrylic acid; Compositions of derivatives of such polymers
-
- 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
- A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
-
- 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
- A61K8/88—Polyamides
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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
- A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
- A61K2800/87—Application Devices; Containers; Packaging
- A61K2800/872—Pencils; Crayons; Felt-tip pens
Definitions
- This specification relates to water-based liquid cosmetics suitable for makeup cosmetics such as eyeshadow, eyeliner, eyebrow, and mascara.
- Patent Document 1 discloses an aqueous liquid cosmetic containing diethylhexyl sodium sulfosuccinate, an inorganic coloring pigment, a water-soluble dispersant, and a film-forming polymer emulsion.
- the content of the diethylhexyl sodium sulfosuccinate is 0.01 to 1% by mass based on the total amount of the cosmetic, and the content of the inorganic coloring pigment is 3 to 20% by mass based on the total amount of the cosmetic;
- Disclosed is a water-based liquid cosmetic in which the inorganic coloring pigment contains carbon black, and the film-forming polymer emulsion contains a core-shell type alkyl acrylate copolymer emulsion, and is housed in a so-called collector type applicator.
- Low viscosity compositions are disclosed.
- This patent document 1 describes that by using carbon black for more than half the weight of the pigment, the pigment is sufficiently dispersed with a water-soluble resin, the density of the drawn line is excellent, and the cosmetic film is formed with good uniformity.
- carbon black which has a lower specific gravity than the iron oxide pigment, it is possible to suppress the sedimentation of the pigment as much as possible.
- other inorganic pigments with a large specific gravity such as iron oxide
- Patent Document 2 contains (A) sodium polyaspartate, (B ) Group B1: metal or metal oxide-coated glass powder, aluminum powder, Group B2: metal-coated film powder), (C) a water-soluble dispersant, and (D) D1 Group (yellow iron oxide, red iron oxide, black iron oxide, titanium dioxide, titanium oxynitride) and at least one metal oxide selected from Group D2 (Prussian blue), and a water-soluble polymer separately as a dispersant has been added.
- “favorable fixability” refers to suppressing the estimated amount of stains due to rubbing from over 20% to the 10% range, which is still insufficient.
- Patent Document 3 contains water and a lower polyhydric alcohol in the aqueous phase, and furthermore, an inorganic pigment such as iron oxide and a core-shell of an acrylic polymer Disclosed is an emulsified composition comprising a type emulsion, a water-holding oil and a wax.
- This make-up cosmetic can be washed off with warm water while exhibiting certain water resistance.
- the cosmetic described in Document 3 contains a water-holding oil agent as an essential component in exchange for the fact that it can be washed away with warm water, so even if it is dried after application, moisture remains in the coating film. Even if it is said to have water resistance, there is a possibility that the adhesion may be dissolved by moisture such as sweat and tears.
- the first disclosure is intended to solve these problems, and only inorganic pigments such as iron oxide pigments Makeup such as eyeshadow, eyeliner, eyebrow, and mascara that can improve the concentration of drawn lines without causing aggregation and sedimentation of the coloring materials even when the composition contains the coloring materials.
- inorganic pigments such as iron oxide pigments Makeup such as eyeshadow, eyeliner, eyebrow, and mascara that can improve the concentration of drawn lines without causing aggregation and sedimentation of the coloring materials even when the composition contains the coloring materials.
- the present second disclosure intends to solve these problems in view of the problems and current situations of water-based liquid cosmetics such as Patent Documents 1 and 3, which are conventional technologies, and uses carbon black as a coloring material.
- a water-based liquid cosmetic composition containing a pigment and free of a surfactant which is highly compatible with both drawn line fixation and cleansing properties, and which is suitable for makeup cosmetics such as eyeshadow, eyeliner, eyebrow, and mascara. intended to provide
- a cosmetic contained in a pen-type applicator having a brush in the applicator portion contains at least oxidation.
- a water-based liquid cosmetic having a composition containing an iron pigment, a polyorganic acid or a polyorganic acid salt, specific emulsion particles, a specific surfactant, and a water-based solvent, thereby achieving the above object. was found to be obtained, leading to the completion of the first disclosure.
- the present inventors have made intensive studies in view of the problems of the conventional Patent Documents 1 and 3, etc., and as a result, housed in an applicator of a type that transfers the liquid from the coating liquid storage part to the coating part using capillary force.
- a cosmetic that contains at least a carbon-based pigment, a specific water-soluble acrylic copolymer, core-shell emulsion particles containing an acrylates copolymer, and a water-based solvent, etc. , and found that a water-based liquid cosmetic for the above purpose can be obtained, leading to the completion of the present second disclosure.
- the water-based liquid cosmetic of the first disclosure is a cosmetic that is accommodated in a pen-type applicator having a brush in the application portion, and comprises at least an iron oxide pigment and a polyorganic acid or polyorganic acid salt.
- emulsion particles containing an acrylates copolymer, a nonionic surfactant, and an aqueous solvent is preferably at least one selected from Group A below.
- Group A Polyaspartic acid, polylactic acid, polyphosphoric acid, polyacrylic acid
- the emulsion particles containing the acrylates copolymer are preferably core-shell type emulsion particles.
- the water-based solvent is preferably selected from water, lower alcohols having 5 or less carbon atoms, and polyhydric alcohols. Furthermore, it is preferable to contain inorganic pigments other than iron oxide pigments.
- the water-based liquid cosmetic of the second disclosure is a cosmetic that is housed in an applicator of a type that transfers liquid from an application liquid storage unit to an application unit using capillary force, and contains at least carbon as a main component.
- a pigment a water-soluble acrylic copolymer selected from Group X below, core-shell type emulsion particles containing an acrylates copolymer, and an aqueous solvent.
- Group X (Styrene/Acrylates) Copolymer, Ammonium Acrylates Copolymer
- the carbon-based pigment is preferably selected from carbon black and/or graphite.
- the aqueous solvent is preferably selected from water, lower alcohols having 6 or less carbon atoms and polyhydric alcohols.
- the content of water is preferably 50% by mass or more. It is preferable that the applicator portion of the applicator comprises a brush. Furthermore, it is preferable to contain inorganic pigments other than iron oxide pigments.
- water-based refers to a composition of a single system (not a W/O emulsion, O/W emulsion, etc.) containing water and/or a water-soluble organic solvent as a main solvent.
- this disclosure includes the disclosure contents of both the water-based liquid cosmetics of the first disclosure and the water-based liquid cosmetics of the second disclosure.
- the density of drawn lines can be improved.
- a water-based liquid cosmetic suitable for makeup cosmetics such as eyeshadow, eyeliner, eyebrow, mascara, etc.
- eyeshadows, eyeliners, eyebrows, eyeshadows, eyeliners, eyebrows, eyeshadows, eyeliners, eyebrows, eyeshadows, eyeliners, eyebrows, etc. which contain a pigment such as carbon black as a coloring material and are highly compatible with both the fixation of drawn lines and the cleansing property even with a configuration that does not contain a surfactant.
- a water-based liquid cosmetic suitable for makeup cosmetics such as mascara is provided.
- the objects and advantages of the disclosure may be realized and obtained by means of the elements and combinations particularly pointed out in the claims. Both the foregoing general description and the following detailed description are exemplary and explanatory and are not limiting of the disclosure as claimed.
- Fig. 2 is a partial cross-sectional view showing an example of a liquid cosmetic applicator containing the water-based liquid cosmetic of the first disclosure
- the mechanism of FIG. 1 is an example of the rotary delivery type.
- Fig. 4 is a partial cross-sectional view showing another example of the liquid cosmetic applicator containing the water-based liquid cosmetic of the present disclosure;
- the mechanism in FIG. 2 is an example of a cosmetic-containing applicator type.
- (a) is a perspective view showing still another example of the liquid cosmetic applicator containing the water-based liquid cosmetic of the first disclosure, and
- (b) is the same liquid cosmetic applicator as (a). is a partial cross-sectional view of the.
- the mechanism of the liquid cosmetic applicator (a) and (b) is an example of a collector type applicator type.
- Fig. 10 is a vertical cross-sectional view showing an example of a liquid cosmetic applicator containing the water-based liquid cosmetic of the present second disclosure and showing a state before use.
- Fig. 5 is a vertical cross-sectional view showing the start state of use of the liquid cosmetic applicator of Fig. 4;
- Fig. 10 is a partial vertical cross-sectional view showing another example of the liquid cosmetic applicator containing the water-based liquid cosmetic of the second disclosure.
- Fig. 10 is a partial vertical cross-sectional view showing another example of the liquid cosmetic applicator containing the water-based liquid cosmetic of the second disclosure.
- the water-based liquid cosmetic of the first disclosure is a cosmetic to be accommodated in a pen-type applicator having a brush in the application portion, and comprises at least an iron oxide pigment, a polyorganic acid or a polyorganic acid salt, and an acrylic. It is characterized by containing emulsion particles containing a latex copolymer, a nonionic surfactant, and an aqueous solvent.
- iron oxide pigment used in the present disclosure examples include at least one of black iron oxide, red iron oxide (red iron oxide), yellow iron oxide, and the like (either singly or as a mixture of two or more thereof; the same shall apply hereinafter).
- the particle shape of these iron oxide pigments is not particularly limited, such as spherical, granular, rod-like, needle-like, plate-like, and amorphous, and any shape can be used.
- the average particle size of iron oxide pigments (particles) that can be used before dispersion (at the time of blending) varies depending on the type of iron oxide pigment. Those having an average particle size of 2000 nm or less, preferably 100 to 1000 nm can be used.
- average particle size refers to a value measured and calculated by a dynamic light scattering method [particle size analyzer FPAR-1000, manufactured by Otsuka Electronics Co., Ltd.].
- the content of these iron oxide pigments is preferably 0.3 to 20% by mass, more preferably 0.3 to 15% by mass, based on the total amount of the cosmetic composition. If the content of the iron oxide pigment is less than 0.3% by mass, the color development is insufficient and the hiding power is also insufficient. This is not desirable because it causes trouble.
- Inorganic pigments other than iron oxide pigments include carbon black, Prussian blue, titanium oxide, titanium black, zinc oxide, talc, chromium oxide, cobalt oxide, zinc oxide, titanium mica, red No. 226, bismuth oxychloride, ultramarine blue, and konjo. At least one such as can be used. These inorganic pigments are used as colorants, and when carbon black is selected, it can be used in combination with the above-mentioned iron oxide pigments to provide a black or brown color.
- the inorganic pigment containing carbon black that can be used is not particularly limited as long as it is used in liquid cosmetics. These inorganic pigments may also have an average particle size of 2000 nm or less, preferably 100 to 1000 nm.
- the content of inorganic pigments other than these iron oxide pigments is preferably 0 to 15% by mass with respect to the total amount of the cosmetic composition. In the case of toning each color such as, etc., it is about 0.1 to 3% by mass.
- the polyorganic acid and polyorganic acid salt used in the first disclosure improve the dispersibility of the iron oxide pigment used as the coloring material, and include, for example, at least one selected from Group A below.
- Group A polyaspartic acid, polylactic acid, polyphosphoric acid, polyacrylic acid
- Polyorganic acid salts to be used include the salts of polyaspartic acid, polylactic acid, polyphosphoric acid, and polyacrylic acid in the above group A, and these salts It is sufficient that at least one of one or more of the above is included.
- Types of these salts include alkali metal salts, alkaline earth metal salts, ammonium salts and alkanolamine salts, with sodium salts, potassium salts and lithium salts being particularly preferred.
- polyaspartic acid or a salt thereof is particularly excellent in dispersion stability, and sodium polyaspartate is particularly preferred.
- the (total) content of these polyorganic acids and polyorganic acid salts is preferably 0.2 to 2.0% by mass, more preferably 0.4 to 1.85% by mass, relative to the total amount of the liquid cosmetic. %.
- the content of these polyorganic acids and polyorganic acid salts is 0.2% by mass or more, the dispersion stability of iron oxide pigments such as red iron oxide as a coloring material is improved, while the content is 2.0% by mass.
- the emulsion particles used in the first disclosure are film-forming polymer emulsion particles and contain acrylates copolymers, and water-insoluble polymer aqueous dispersions and the like can be used.
- Emulsion particles that can be used include, for example, styrene/alkyl acrylate copolymer emulsion, styrene/alkyl methacrylate copolymer emulsion, acrylic acid, methacrylic acid, or (C 1 to C 4 and C 8 ) Examples thereof include copolymer emulsions composed of alkyl ester components.
- It may also be a composite polymer emulsion such as a core-shell polymer emulsion comprising a copolymer of an ethylenically unsaturated carboxylic acid-based monomer and a styrene-based monomer and another polymer and/or copolymer.
- a composite polymer emulsion such as a core-shell polymer emulsion comprising a copolymer of an ethylenically unsaturated carboxylic acid-based monomer and a styrene-based monomer and another polymer and/or copolymer.
- styrene/alkyl acrylate copolymer emulsion examples include (styrene/acrylates) copolymers. company) and the like.
- core-shell type polymer emulsions comprising copolymers of ethylenically unsaturated carboxylic acid-based monomers and styrene-based monomers and other polymers and/or copolymers include ethylhexyl acrylate/methacrylic acid copolymers.
- Emapoly CE-119N (manufactured by Gifu Shellac Co., Ltd.), which is an emulsion of a core-shell type copolymer of [(acrylates/methylstyrene/styrene) copolymer ammonium], can be mentioned. From the standpoints of film-forming properties and drawn line fixability, it is preferable to use an acrylates copolymer, and more preferably to use the core-shell type polymer emulsion.
- These emulsion particles usually have a finely dispersed resin content in an aqueous component at a concentration of 20 to 60 mass % as solid content.
- the blending amount thereof is 1 to 30% by mass, preferably 5 to 15% by mass, based on the total liquid cosmetic composition in terms of solid content concentration. If the content of the emulsion particles is less than 1% by mass, the adhesiveness and water-resistant adhesiveness will be reduced. .
- Nonionic surfactants used in the first disclosure are particularly those in which polyoxyethylene (POE) and organic acids, glycerin, higher alcohols, etc. are ether-bonded, more preferably laureth (polyoxyethylene lauryl ether) , polyoxyethylene (POE) alkyl ethers such as ceteth (polyoxyethylene cetyl ether), steareth (polyoxyethylene stearyl ether), beheneth (polyoxyethylene behenyl ether), etc., and these alone Alternatively, two or more kinds can be used in combination.
- POE polyoxyethylene
- organic acids glycerin, higher alcohols, etc.
- POE polyoxyethylene alkyl ethers
- ceteth polyoxyethylene cetyl ether
- steareth polyoxyethylene stearyl ether
- beheneth polyoxyethylene behenyl ether
- the content of the nonionic surfactant to be used is preferably 0 with respect to the total amount of the liquid cosmetic from the viewpoint of preventing excessive penetration into the skin (so-called spider) and further from the viewpoint of the dispersion stability of the iron oxide pigment. 0.01 to 1% by mass, more preferably 0.03 to 0.5% by mass.
- the water-based solvent used in the first disclosure is used as a solvent for liquid cosmetics, and includes at least one of water, a lower alcohol having 5 or less carbon atoms, and a polyhydric alcohol (each alone or a mixture of two or more, the same applies hereinafter).
- lower alcohols having 5 or less carbon atoms include methyl alcohol (methanol), ethyl alcohol (ethanol), n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, sec-butyl alcohol, tert-butyl alcohol, At least one of isobutyl alcohol, pentyl alcohol, ethylene glycol, propylene glycol and the like can be mentioned.
- polyhydric alcohols examples include glycerin, erythritol, threitol, arabinitol, xylitol, ribitol, propylene glycol, 1,3-butylene glycol, 1,2-pentanediol, ethylene glycol, diethylene glycol, and pentaerythritol. be done.
- ethyl alcohol ethanol
- the total content of the water-based solvent used is preferably 45 to 85% by mass based on the total amount of the liquid cosmetic from the viewpoint of stability, dispersion stability of the iron oxide pigment, particularly stability at low temperatures, More preferably, it should be 50 to 80% by mass.
- the content of the water-based solvent is 45% by mass or more, smooth writing and moisturizing properties can be exhibited, and a slight antiseptic effect can be exhibited. By doing so, the dispersion stability is further improved.
- Distilled water, ion-exchanged water, purified water, pure water, ultrapure water, etc. can be used as the water used as the solvent in the first disclosure, and the stability over time and the dispersibility of the iron oxide pigment can be further improved.
- the ratio to the aqueous solvent is preferably 70 to 100% by mass (50 to 80% by mass), particularly preferably 80 to 90% by mass. .
- the water-based liquid cosmetic of the first disclosure can contain, in addition to the components described above, optional components used in ordinary liquid cosmetics. Specifically, preservatives, antioxidants, neutralizers, ultraviolet absorbers, chelating agents, pH adjusters, moisturizers, cosmetic ingredients, fragrances, viscosity/viscosity adjusters, and other dispersions such as polyethylene glycol alkyl ethers. An agent or the like can be contained in an appropriate amount within a range that does not impair the effects of the first disclosure. In addition to the inorganic pigments other than the iron oxide pigments, other colorants such as organic pigments, water-soluble dyes, and resin particle pigments may be contained as necessary within a range that does not impair the effects of the present disclosure. .
- the water-based liquid cosmetic of the first disclosure preferably has a viscosity of 15 mPa ⁇ s or less, preferably 10 mPa ⁇ s or less, and more preferably 2 to 8 mPa ⁇ s. If the viscosity exceeds 15 mPa ⁇ s, the outflow property of the water-based liquid cosmetic is significantly lowered, which is not preferable. Adjustment of the above viscosity range is performed by selecting the type of iron oxide pigment to be used and its average particle size, polyorganic acid or polyorganic acid salt, emulsion particles containing acrylates copolymer, and raw materials such as nonionic surfactants and aqueous solvents.
- the viscosity measurement conditions are, specifically, the obtained cosmetic composition, manufactured by Toki Sangyo Co., Ltd., ELD type viscometer, standard rotor: 50 rpm ( Shear rate: 192 [s -1 ]), measured at a temperature of 25°C.
- the water-based liquid cosmetic of the first disclosure has a pH in the range of 6 to 9 when pH (25 ° C.) is measured using a glass electrode from the viewpoint of improving solubility and suppressing skin irritation.
- the pH is adjusted using the above-mentioned pH adjuster or the like.
- the water-based liquid cosmetic of the first disclosure contains emulsion particles containing the iron oxide pigment, polyorganic acid or polyorganic acid salt, and acrylates copolymer, nonionic surfactant, water-based solvent, and other components, for example,
- the average particle size of the iron oxide pigment in the cosmetic (after dispersion) is adjusted to 300 nm or less by preparing under suitable dispersing conditions using a homomixer, sand mill, ultrasonic homogenizer, high-pressure homogenizer, or other disperser. be able to.
- the dispersion conditions are, for example, a frequency of 20 to 30 KHz in the case of an ultrasonic homogenizer and a pressure of 150 to 245 MPa in the case of a high-pressure homogenizer.
- the average particle size of the iron oxide pigment in the cosmetic (after dispersion) can be adjusted to 300 nm or less.
- the water-based liquid cosmetic thus obtained can be stored in a pen-type applicator having a brush in the application part, for example, a pen-type liquid cosmetic applicator (container ) can be stored (filled) and used.
- the liquid cosmetic applicator that can be used is not particularly limited as long as it is, for example, a liquid cosmetic applicator equipped with a brush or pen core for eyeliner or eyebrow use.
- a brush (brush pen) for eyeliner or eyebrow, a pen core, and an application body as an application means composed of rubber, elastomer, or a closed-cell body having resilience.
- an applicator having a container filled with a liquid cosmetic is not particularly limited as long as it is, for example, a liquid cosmetic applicator equipped with a brush or pen core for eyeliner or eyebrow use.
- a brush (brush pen) for eyeliner or eyebrow, a pen core, and an application body as an application means composed of rubber, elastomer, or a closed-cell body having resilience
- the mechanism is of a rotary delivery type, a cosmetic-containing applicator type, and a collector-type applicator type, respectively. It is desirable to use a liquid cosmetic applicator that is excellent in usability, convenience, and applicability.
- the liquid cosmetic applicator A of the rotary delivery type is configured by a liquid pressing mechanism 10, and the liquid cosmetic of the present disclosure (hereinafter simply referred to as "liquid cosmetic ) is provided in front of the cosmetic containing container 11 serving as a storage portion for discharging the cosmetics.
- the liquid pressing mechanism 10 draws out the liquid cosmetic from the container (reservoir) 11 by rotating a drawing member 13 disposed at the rear end of the shaft body 12 relative to the shaft body 12 in the circumferential direction. It is configured to be supplied to the coating section 30 .
- the liquid pressing mechanism 10 of this applicator includes a delivery member 13 rotatably fitted to the rear end of a shaft body 12, a driving cylinder 15 for transmitting the force of rotation of the delivery member 13 by the user to a threaded rod 14, A threaded body 16 that is fixed to the shaft body 12 and into which a threaded rod 14 is screwed, a threaded rod 14 that is rotatably engaged with a piston body 17 at its tip, and a piston body that slides inside a storage portion 11 of the shaft body 12. 17.
- the rotation of the delivery member 13 is transmitted to the threaded rod 14 via the drive cylinder 15, and the rotation of the threaded rod 14 advances the threaded rod 14 and the piston body 17 via the female thread of the nut-shaped threaded body 16.
- the structure is such that the liquid cosmetic is delivered to the application section 30 from within the storage section 11 .
- the delivery member 13 has a cylindrical operating portion closed by fitting a crown 13a at the rear end thereof, which is rotatably fitted to the rear end portion of the shaft body 12 and exposed.
- a drive cylinder 15 is fitted into the delivery member 13 and fixed in the rotational direction, and a threaded body 16 is mounted in the drive cylinder 15 so as to be fixed in the rotational direction and relatively movable in the axial direction.
- a reference numeral 13b denotes a spring member that biases the feeding member 13, which is a rotating body, toward the rear side.
- a seal portion 18, a joint member 19, a front barrel 20, and an applicator portion 30 are attached to the front end portion 12a of the barrel body 12 by fitting.
- the liquid cosmetic is stored in the storage portion 11 of the shaft body 12, and the liquid cosmetic drawn out from the storage portion 11 passes through the flow path in the joint member 19 and is discharged to the application portion 30 so that it can be applied.
- the cap 40 is formed so as to be attached to the front barrel 20 so as to cover the application portion 30 and the front barrel 20 after use.
- reference numeral 21 denotes an agitation ball for agitating the liquid cosmetic in the reservoir 11 by reciprocating motion
- 22 denotes a seal ball
- 41 is an inner cap in the cap 40
- 42 is a spring for urging the inner cap backward.
- the stirring ball 21 may be omitted.
- the illustrated reference numeral 23 designates the seal portion 18, the joint member 19, the front barrel 20, and the application portion 30 at a position that closes the flow passage of the liquid cosmetic toward the application portion 30 when not in use.
- This stopper has a ring-shaped portion mounted between the rear end of 20 and the front surface of the stepped portion of the front end portion 12 a of the shaft body 12 .
- a part of the ring-shaped portion of the stopper 23 is cut away, and a knob piece is integrally formed on the opposite side of the cut-off portion. It can be removed from between the rear end of the front barrel 20 and the front end portion 12 a of the barrel body 12 .
- the seal ball 22 is fitted into the inner diameter of the seal portion 18 serving as the seal ball receiving portion to seal the seal portion 18 so that the liquid cosmetic does not flow into the application portion 30 side.
- the user pulls out the stopper 23 from the shaft body 12 and pushes the front barrel 20 toward the rear end, so that the small diameter portion of the rear end of the joint member 19 abuts against the seal ball 22 and the seal ball 22 seals.
- the liquid cosmetic in the storage portion 11 is removed from the inner diameter portion of the portion 18 and enters the storage portion 11 . is supplied from the inside thereof, and can be applied to the target area.
- the liquid cosmetic applicator B of the cosmetic-contained type applicator type comprises a barrel 110 in which a cotton 126 is impregnated with a cosmetic, and a tip portion 110a provided at the tip portion 110a of the barrel to contain the cosmetic.
- the coating part 114 has a coating part 114 for coating an object, and a holding member 116 covering the outer periphery of the coating part 114 on the side of the barrel 110 (base part side) while leaving the tip part 114 a of the coating part 114 .
- the cosmetic-incorporating type applicator has a structure for supplying the cosmetic inside the barrel 110 to the barrel 110, and has a cap 112 detachably attached to the tip 110a of the barrel in order to cover the applicator 114 and the holding member 116. It is what we are doing.
- the application portion 114 has a sharpened tip portion 114a.
- the application part 114 is brush-shaped by bundling fibers.
- the application unit 114 includes a plurality of resin fiber bundles (specific example: fiber material made of polybutylene terephthalate (PBT), fiber thickness of 0.1 to 0.15 mm), and the tip portion 114a is tapered. are arranged (sharpened) so as to form a brush shape, and the rear end portion is integrated by heat welding and expanded into a flange shape.
- the application part 114 may be made of hardened fibers. In the cosmetics-containing applicator of this embodiment, as shown in FIG.
- a cotton pad 126 of the ink-absorbing body is accommodated from the central portion to the tip portion 110a in the barrel 110, and the pad 126 is located inside the barrel. It is sealed and supported by a breech plug 128 fitted from the rear end of 110 .
- An ink relay core 130 made of open-cell material is arranged in the opening of the barrel tip 110a.
- the relay core 130 has a tail end inserted into the tip of the batting 126 and a tip of the relay core 130 inserted into the tail end of the application portion 114 to guide the ink occluded in the batt 126 to the application portion 114 .
- the relay core 130 is mounted through a substantially cylindrical support 132 in the tip end portion 110a of the shaft tube, which is stepped and has a slightly smaller diameter than the main body (the diameter is reduced by the thickness of the cap 112).
- a cylindrical rear end portion of the holding member 116 is fitted between the outer circumference of the support 132 and the inner circumference of the barrel tip portion 110a.
- the distal end portion of the holding member 116 is located ahead of the distal end portion 110a of the barrel and covers the outer peripheral surface 114b of the application portion 114, and the outer peripheral surface 116a of the holding member is tapered in a conical side shape or a tapered shape.
- the collector-type applicator type liquid cosmetic applicator C has a front barrel 210 and a shaft body 214 in which a shaft main body 212 on the rear side of the front barrel 210 is fitted. Then, as shown in FIG. 3B, a collector 216 formed in a comb-like shape in which a plurality of sheet portions are arranged in the axial direction is arranged in the front part of the shaft 214 .
- This is a type of applicator in which the application liquid is stored in the storage space 214a at the rear.
- a shaft body 212 at the rear portion of the shaft body 214 is formed in a pipe-like shape with an interior communicating with each other and opening forward and backward.
- a tail plug 214b is fitted to the rear portion of the shaft body 212, which is also the rear portion of the shaft body, to close the rear portion of the shaft body 212, and is sandwiched between the front end of the tail plug 214b and the rear end of the collector 216.
- the space inside the shaft body 214 (also the space inside the shaft body 212) serves as a housing space 214a.
- the coating liquid is directly accommodated without arranging an impregnation body such as batting, and a stirring body (such as a ball) 214c for stirring the coating liquid is arranged. .
- the front barrel 210, the barrel body 212, the collector 216, the cap, and the like can be resin molded products. Also, the agitating body 214c can be made of a ball member made of metal, resin, or the like.
- the collector 216 has a structure covered and held by the front barrel 210 and the barrel body 212 .
- a writing part 218 made of a tapered brush body protrudes from an opening at the front end of the front barrel 210 , and a cap covering the writing part 218 is detachably fitted to the front barrel 210 .
- the front barrel 210 has a substantially conical side surface and is tapered, and it is desirable that the tip angle of the front barrel 210 is substantially the same as the tip angle of the writing part 218 .
- the writing part 218 is a tapered brush made of resin fiber, natural fiber bundle, or resin porous material.
- the writing portion 218 has a flange-like enlarged diameter at its rear end, and this enlarged diameter portion is engaged with the inside of the front barrel 210 to prevent it from coming off.
- the writing part 218 is preferably a writing brush, but other various applicators for applying a coating liquid can be used.
- a cup-shaped inner cap that covers the writing section 218 is arranged so as to be movable back and forth in order to increase the airtightness of the writing section 218, and a spring is arranged to bias the inner cap backward.
- a bellows-shaped collector 216 is arranged behind the writing part 218 inside the hollow tapered front barrel 210, and a core 222 is arranged to pass through the hollow part of the collector 216.
- the core 222 can be composed of a capillary member such as a resin fiber bundle, a natural fiber bundle, or a resin porous body.
- the core 222 does not protrude from the rear end of the collector 216 into the housing space 214a of the shaft 214 (see FIG. 3B).
- the rear end surface of the core 222 is substantially aligned with the rear end surface of the collector 216 .
- the rear ends of the cores 222 do not protrude into the accommodation space 214a, and the capacity of the accommodation space 214a can be secured.
- the rear end of the core 222 does not protrude into the housing space 214a, when the stirring body 214c is provided in the housing space 214a, even if the stirring body 214c moves within the housing space 214a, the core 222 does not move. Since there is no collision and no deformation of the core 222, the coating liquid can sufficiently permeate. Touch on the difference in density between the top and bottom of the pigment due to the porosity of the core.
- liquid eyeliner and liquid eyeshadow which are cosmetic compositions that are water-based liquid cosmetics of the present disclosure
- liquid cosmetic applicator is limited to this. Instead, it can be applied to an eyebrow applicator for drawing a line on the eyebrows, or for drawing a line on the skin.
- the rotating delivery type applicator shown in FIG. 1 is used, but a knocking delivery type liquid cosmetic applicator may be used. It is.
- the water-based liquid cosmetic of the first disclosure configured in this way is a cosmetic that is accommodated in a pen-type applicator having a brush in the application portion, and comprises at least an iron oxide pigment and a polyorganic acid or poly
- An iron oxide pigment having a high specific gravity such as red iron oxide can be used as a liquid cosmetic by suitably combining raw materials such as an organic acid salt, emulsion particles containing an acrylates copolymer, a nonionic surfactant, and an aqueous solvent.
- the iron oxide pigment in the liquid cosmetic inside is re-dispersed by the stirrer, so the iron oxide pigment in the liquid cosmetic (after dispersion) settles due to aggregation, and the core and writing part By adjusting with , there is no color separation during writing, and excellent dispersibility and stability over time can be obtained. Therefore, even if the cosmetic composition of the present disclosure is housed in a container such as a liquid cosmetic applicator to be used for a long period of time, the dispersibility in the container and the stability over time are maintained for a long period of time.
- a water-based liquid suitable for liquid cosmetics such as eyeliner liquid that does not cause color separation at the tip of the brush even in an eyeliner applicator container using a brush 30 as the applicator, as shown in FIG. Cosmetics are obtained.
- the applicator container as shown in FIG. 1 or FIG. 3 although each is provided with a stirrer, there is no need for the user to stir, and there is no change in color when applied.
- the water-based liquid cosmetic of the second disclosure is a cosmetic that is housed in an applicator of a type that transfers liquid from an application liquid storage unit to an application unit using capillary force, and is at least a pigment containing carbon as a main component.
- a water-soluble acrylic copolymer selected from the following group X, core-shell type emulsion particles containing an acrylates copolymer, and a water-based solvent.
- Group X styrene acrylates copolymer, styrene acrylic acid copolymer, methylstyrene acrylic acid copolymer
- the pigment (carbon-based black pigment) containing carbon as a main component used in the second disclosure for example, at least one of carbon black, graphite, spherical graphite, etc. (each alone or a mixture of two or more, the same applies hereinafter) is used. preferably selected from carbon black and/or graphite, with carbon black being particularly preferred.
- the particle shape of these carbon-based pigments is not particularly limited, and any shape can be used, such as spherical, granular, rod-like, needle-like, plate-like, and amorphous.
- the average particle size before dispersion (at the time of blending) of pigments (particles) containing carbon as a main component that can be used varies depending on the application of the cosmetic and the type of pigment. Those having an average particle size of 2000 nm or less, preferably 100 to 1000 nm can be used.
- average particle size refers to a value measured and calculated by a dynamic light scattering method [particle size analyzer FPAR-1000, manufactured by Otsuka Electronics Co., Ltd.].
- the (total) content of these carbon-based pigments is preferably 1 to 20% by mass, more preferably 4 to 10% by mass, based on the total amount of the cosmetic composition. If the content of the carbon-based pigment is less than 1% by mass, the color development is insufficient and the hiding power is also insufficient. This is not desirable because it interferes with
- the water-soluble acrylic copolymer used in the second disclosure includes at least one selected from Group A: (styrene/acrylates) copolymers and acrylates copolymer ammonium.
- (Styrene/acrylates) copolymers include styrene/alkyl acrylate copolymers, and commercial products of this polymer include SYNTRAN EX149PE (manufactured by Interpolymer Co., Ltd.).
- Acrylates copolymer ammonium includes alkyl acrylate copolymers, and commercial products of this polymer include SYNTRAN 5402 (manufactured by Interpolymer Co., Ltd.).
- the content of these water-soluble acrylic copolymers is 0.1 to 5.0% by mass, preferably 0.2 to 3.0% by mass, more preferably 0.2 to 3.0% by mass, based on the total amount of the liquid cosmetic. , 0.5 to 2.0% by mass.
- the core-shell emulsion particles containing an acrylates copolymer include random copolymers, graft copolymers, block copolymers, core- It may be a shell type copolymer.
- acrylic containing particles having a core-shell structure in which the core is an acrylic resin such as poly(meth)acrylate or a urethane resin such as polyurethane, and the shell is an acrylic resin such as poly(meth)acrylate or a urethane resin such as polyurethane Resin emulsions or urethane-acrylic composite resin emulsions are preferred.
- Emapoly CE-119N manufactured by Gifu Shellac Co., Ltd.
- Emapoly CE-119N manufactured by Gifu Shellac Co., Ltd.
- an acrylates copolymer it is preferable to use the core-shell type polymer emulsion.
- These emulsion particles usually have a finely dispersed resin content in an aqueous component at a concentration of 20 to 60 mass % as solid content.
- concentration in terms of solid content is 1 to 40% by mass, preferably 3 to 20% by mass, more preferably 5 to 15% by mass, based on the total amount of the liquid cosmetic. If the content of the emulsion particles is less than 1% by mass, the sticking property and water-resistant sticking property will be lowered. .
- the water-based solvent used in the second disclosure is used as a solvent for liquid cosmetics, and includes water, lower alcohols having 6 or less carbon atoms, and at least one of polyhydric alcohols (each alone or a mixture of two or more, the same applies hereinafter).
- lower alcohols having 6 or less carbon atoms include methyl alcohol (methanol), ethyl alcohol (ethanol), n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, sec-butyl alcohol, tert-butyl alcohol, At least one of isobutyl alcohol, pentyl alcohol, ethylene glycol, propylene glycol and the like can be mentioned.
- polyhydric alcohols examples include glycerin, erythritol, threitol, arabinitol, xylitol, ribitol, propylene glycol, 1,3-butylene glycol, 1,2-pentanediol, ethylene glycol, diethylene glycol, and pentaerythritol. be done.
- ethyl alcohol ethanol
- the total content of the aqueous solvent used is preferably 45 to 45% of the total amount of the liquid cosmetic, from the viewpoint of stability, dispersion stability of pigments containing carbon as a main component, particularly stability at low temperatures. 85% by mass, more preferably 50 to 80% by mass.
- This water-based solvent 45% by mass or more it is possible to exhibit smooth writing and moisturizing properties, and to exhibit a slight antiseptic effect, while the content is 85% by mass or less. As a result, the bleeding resistance of drawn lines is further improved. Distilled water, ion-exchanged water, purified water, pure water, ultrapure water, etc.
- the ratio to the aqueous solvent is preferably 50 to 100% by mass (0.5 to 1.0), particularly preferably 80 to 95% by mass. desirable.
- the water-based liquid cosmetic composition of the second disclosure can contain, in addition to the components described above, optional components used in ordinary liquid cosmetic compositions. Specifically, preservatives, antioxidants, neutralizers, ultraviolet absorbers, chelating agents, moisturizing agents such as 1,3-butylene glycol, cosmetic ingredients, fragrances, viscosity/viscosity modifiers, polyethylene glycol alkyl ethers, etc. Other dispersing agents may be contained in an appropriate amount within a range that does not impair the effects of the present disclosure.
- inorganic pigments other than the above-mentioned carbon-based pigments, other colorants such as organic pigments, water-soluble dyes, and resin particle pigments are contained as necessary within a range that does not impair the effects of the present disclosure. can do.
- the water-based liquid cosmetic of the second disclosure preferably has a viscosity of 15 mPa ⁇ s or less, preferably 10 mPa ⁇ s or less, and more preferably 2 to 8 mPa ⁇ s. If the viscosity exceeds 15 mPa ⁇ s, the outflow property of the water-based liquid cosmetic is significantly lowered, which is not preferable.
- the viscosity range is adjusted by appropriately combining each raw material such as a carbon-based pigment and its average particle size, a water-soluble acrylic copolymer, an emulsion particle containing an acrylates copolymer, and a water-based solvent, It can be carried out by combining each content within a suitable range, by a suitable dispersing method, or the like.
- the viscosity measurement conditions are, specifically, the obtained cosmetic composition, manufactured by Toki Sangyo Co., Ltd., ELD type viscometer, standard rotor: 50 rpm (shear rate : 192 [s -1 ]) at a temperature of 25°C.
- the water-based liquid cosmetic of the second disclosure preferably has a surface tension in the range of 35 to 60 mN/m at a temperature of 25° C. according to the Wilhelmy method (plate method) in terms of spreadability during application. , more preferably in the range of 35 to 45 mN/m.
- the surface tension By setting the surface tension to 35 mN/m or more, smooth application is possible without blurring or unevenness in the drawn line, and even low-viscosity cosmetics have little dripping (dripping), and are 60 mN. /m or less, it is possible to improve the followability of the coating liquid and perform smooth coating.
- the measurement of surface tension refers to the value obtained at a temperature of 25° C.
- the amount of each component such as a carbon-based pigment such as carbon black, a water-soluble acrylic copolymer, an emulsion particle containing an acrylates copolymer, etc. can be suitably combined. It can be carried out.
- the water-based liquid cosmetic of the second disclosure contains each component such as a carbon-based pigment such as carbon black, a water-soluble acrylic copolymer, an emulsion particle containing an acrylates copolymer, a water-based solvent, and other components.
- a carbon-based pigment such as carbon black
- a water-soluble acrylic copolymer such as polymethyl methacrylate
- an emulsion particle containing an acrylates copolymer such as polymethyl methacrylate
- a water-based solvent such as water-based solvent
- the average particle size of carbon black in the cosmetic is 200 nm or less. can be prepared.
- the dispersion conditions are, for example, a frequency of 20 to 30 KHz in the case of an ultrasonic homogenizer and a pressure of 150 to 245 MPa in the case of a high-pressure homogenizer.
- the average particle size of the carbon-based pigment in the cosmetic (after dispersion) can be adjusted to 200 nm or less.
- the obtained water-based liquid cosmetic can be stored in an applicator of a type that feeds the liquid from the coating liquid storage part to the application part by using capillary force. can be accommodated (filled) in a liquid cosmetic applicator (container) for use.
- the liquid cosmetic applicator that can be used is not particularly limited as long as it is, for example, a liquid cosmetic applicator equipped with a brush or pen core for eyeliner or eyebrow use.
- a brush (brush pen) for eyeliner or eyebrow, a pen core, and an application body as an application means composed of rubber, elastomer, or a closed-cell body having resilience. and an applicator having a container filled with a liquid cosmetic.
- the water-based liquid cosmetic of the second disclosure is used by being housed in a liquid cosmetic applicator having an applicator portion with a brush or pen core.
- suitable liquid cosmetic applicators include eyeliners, eye shadows, and eyebrows suitable for point makeup around the eyes, or suitable for applying a liquid cosmetic composition (application liquid) to the skin. It is not particularly limited as long as it is a liquid cosmetic applicator having a structure that can A liquid cosmetic applicator having a collector-type container for holding cosmetics, a liquid cosmetic applicator in which a liquid cosmetic composition is directly stored in an application liquid storage part, and a knock type or rotary (rotating) type application liquid discharge mechanism, and the like. is mentioned.
- a preferred liquid cosmetic applicator comprises at least an applicator and an applicator liquid reservoir, the applicator consists of a brush, and the fibers of the brush have a non-circular cross section,
- a liquid cosmetic applicator in which the liquid cosmetic composition of the present disclosure is stored in the application liquid reservoir is preferred.
- Examples of this type of liquid cosmetic applicator include liquid cosmetic applicators shown in FIGS. 4 and 5.
- FIG. 4 the liquid cosmetic applicator D of the embodiment of the second disclosure has the liquid cosmetic composition of the present disclosure, which is provided inside the front portion of the shaft main body 50, which is the applicator main body, and has the above-described configuration.
- a reservoir (storage portion) 51 for the application liquid a stopper 52 attached to the front end portion of the shaft body 50 and sealing the reservoir (storage portion) 51 before use, and the stopper 52 attached to the
- the sealed state of the storage portion (accommodating portion) 51 is maintained, and the plug body 52 is removed to open the closed state of the storing portion (accommodating portion) 51 and release the application liquid to the storage portion (accommodating portion).
- 51 is provided with a seal ball 53 which is in a discharge state.
- the liquid cosmetic applicator D has a stopper 54 detachably attached to the outer peripheral surface of the front end portion of the shaft body 50, and the length of the stopper 54 can be adjusted by removing the stopper 54 at the start of use. and a front barrel 60 that moves in the axial direction and is directly connected to the barrel body 50 .
- the front barrel 60 includes a front barrel main body 61, a pipe joint 62 attached to the front barrel main body 61 and capable of supplying the application liquid from the storage portion 51 to the brush (applying portion) 63, and the pipe.
- An application liquid conducting tube 64 connecting the joint 62 and the brush (applying portion) 63 is provided.
- a sealed state of the storing portion (accommodating portion) 51 is maintained by a stopper 52 (seal ball 53 ) that seals the (accommodating portion) 51 .
- the front barrel 60 moves in the axial direction by the length of the stopper 54 and comes into contact with the barrel body 50 . That is, the pipe joint 62 of the front barrel 60 and the plug body 52 are joined, and the seal ball 53 attached to the plug body 52 is removed by the tip of the pipe joint 62 .
- the sealed state of the storage portion (accommodating portion) 51 is released, and the application liquid can be supplied from the storage portion 51 to the brush (applying portion) 63 .
- a coating liquid discharge mechanism 70 is provided at the rear end portion of the barrel main body 50 .
- the application liquid discharge mechanism 70 is configured to advance a piston 72 by a predetermined distance by rotating a canopy 71 to discharge a predetermined amount of the application liquid.
- the brush 63 is covered with a cap 75 . 4 and 5, reference numeral 55 denotes a stirring ball for stirring the coating liquid.
- the coating liquid ejection mechanism 70 is disclosed in Japanese Unexamined Patent Application Publication No. 2012-157611 previously proposed by the present applicant.
- the coating liquid discharge mechanism 70 may be of a knock type in which the coating liquid is drawn out by pressing the canopy 71 as well as a rotary type in which the coating liquid is drawn out by rotating the canopy 71 .
- the stopper 54 is removed, and the cap 75 (front barrel main body 61) is pushed (moved) toward the rear side of the barrel main body 50. .
- the end of the pipe joint 62 comes into contact with the seal ball 53, and the seal ball 53 is removed from the stopper 52, making it possible to supply the application liquid.
- the cap 75 is removed, the canopy 71 is rotated, and the piston 72 is advanced by a predetermined distance to draw out a predetermined amount of the application liquid to the brush 63, and the application liquid is applied to the application site of the user. do.
- the shape, structure, material, and the like of the brush 63 to be used are not particularly limited as long as they can be suitably applied to eyeliner, eyeshadow, eyebrow, or skin.
- the tip is made of a tapered straight synthetic fiber
- the cross section is made of an aggregate of fibers (brush hair) with a non-circular irregular cross section
- the cross section shape is It is composed of different types of brush hairs.
- a brush with an irregular cross section refers to a brush whose surface perpendicular to the axial direction of the brush has a shape other than a circle. Shapes such as letters, substantially semicircular shapes, and substantially rectangular shapes can be mentioned, and shapes having at least one or more protrusions can be mentioned.
- polyesters such as polyethylene terephthalate, polybutylene terephthalate, polyethylene terephthalate/isophthalate cocondensation polymers, polyolefins such as polyethylene and polypropylene, and thermoplastic polymers such as polyamides such as nylon 6, nylon 610, and nylon 612. Synthetic resin fibers obtained by melt spinning can be mentioned.
- the liquid cosmetic applicator D of the second disclosure configured in this way, when a plurality of types of bristles with irregular cross sections having different cross-sectional shapes are used for the brushes that serve as the application portion, the gaps between the bristles (Gap) reduction can be suppressed, the strength of the brush can be given, and the water-based liquid cosmetic of the second disclosure does not smudge on the skin even when applied on the skin, and does not drip. Since it contains a low-viscosity, carbon-based pigment with little dripping, it has the characteristic of being able to be drawn thickly. , the water-based liquid cosmetic, which serves as the coating liquid, can be sufficiently contained in the brush, and can be applied comfortably.
- a pigment such as carbon black dispersed by a resin component
- a surfactant surfactant-free
- a water-based liquid cosmetic that is highly compatible with cleansing properties and is suitable for liquid cosmetic applicators such as makeup cosmetics such as eyeshadow, eyeliner, eyebrow and mascara.
- FIG. 6 shows a collector-type direct-liquid liquid cosmetic applicator containing the liquid cosmetic composition of the present disclosure.
- This liquid cosmetic applicator E for example, as shown in FIG. 6, is filled in a tank portion 81 that serves as a shaft for directly storing the liquid cosmetic composition 80 of the second disclosure without being occluded by a batting or the like.
- a temporary opening is provided to prevent the liquid cosmetic 80, which is pushed out from the tank portion 81 when the air in the tank portion 81 expands due to an increase in temperature or the like, from dripping from the nib or the air hole.
- a sheet body (ink reservoir, collector member) 82 for retaining ink is incorporated, and a brush-shaped pen point (brush) 83 serving as an applicator is provided at the tip of the collector member 82 .
- a brush-shaped nib (brush) 83 the modified cross-sectional brush 63 used in the liquid cosmetic applicator D can be used.
- the liquid cosmetic is led out from the tank portion 81 to the nib 83 by applying the liquid cosmetic 80 from the tank portion 81 through the relay core 85 provided with the application liquid flow path 84 attached to the central hole of the collector member 82 .
- This is done by leading out to the pen tip 83 which becomes the part.
- 6, 86 and 87 are holder members, 88 is a rear shaft member fixed to the rear portion of the tank portion 81, and 89 is a cap having an inner cap.
- the rear portion of the pen tip 83 may be directly placed in the tank portion 81 to draw out the liquid cosmetics without interposing the relay core 85 .
- the liquid cosmetic applicator E of this form can be used in the same manner as the liquid cosmetic applicator D by removing the cap 89 .
- FIG. 7 shows the use of the water-based liquid cosmetic of the present disclosure in a batting-type liquid cosmetic applicator.
- the liquid cosmetic applicator F of this form has an inner shaft 91 within a cosmetic device main body 90, and the liquid cosmetic composition of the present second disclosure is contained within the inner shaft 91.
- An impregnated body 92 made of cotton or the like impregnated with is contained, and on the tip side of the impregnated body 92, a brush with a modified cross section used in the liquid cosmetic applicator D for applying the liquid cosmetic.
- a structure in which a body 93 is provided and a tail plug 94 is fixed to the rear end of the inner shaft 91 is exemplified.
- 95 is a cap body having an inner cap portion 96 . The liquid cosmetic applicator F of this form is used by removing the cap 95 .
- the water-based liquid cosmetic product of the second disclosure which serves as the application liquid, can be sufficiently contained in the brush and applied comfortably. It is possible to obtain a liquid cosmetic applicator that can be
- the fibers of the bristles used a brush with an irregular cross section other than a circular cross section, but the water-based liquid cosmetic of the second disclosure As described above, even if it is applied to the skin, it does not scratch on the skin, and it has a characteristic that it can be drawn thickly with low viscosity with little dripping (dripping). It may be made of tapered straight synthetic fibers and may have a circular cross section.
- liquid cosmetic applicator in the form of the second disclosure has been described by taking liquid eyeliners and liquid eye shadows, which are cosmetic compositions that become the water-based liquid cosmetics of the second disclosure, as examples. However, it is not limited to this, and can be applied to an eyebrow applicator for drawing lines on the eyebrows, and for drawing lines on the skin.
- liquid pressing mechanism of the liquid cosmetic applicator of the above-described embodiment the rotary feed type applicator shown in FIG. 4 is used, but a knock type feed type liquid cosmetic applicator may be used. It is.
- the cosmetic contained in the applicator of the type that transfers the liquid from the application liquid storage unit to the application unit using capillary force at least carbon A pigment containing carbon as a main component such as black, a water-soluble acrylic copolymer, an emulsion particle containing an acrylates copolymer, and each raw material such as a water-based solvent are suitably combined to obtain a carbon-based pigment.
- Makeup cosmetics such as eye shadows, eyeliners, eyebrows, mascara, etc., which are highly compatible with both fixation of drawn lines and cleansing properties in order to exhibit long-lasting makeup even when they are composed of pigments and do not contain surfactants.
- a suitable water-based liquid cosmetic is provided.
- a cosmetic composition (blending unit: mass %, total amount 100 mass %) to be a water-based liquid cosmetic having the formulation of the first disclosure shown in Table 1 below was prepared by the following method, and each was measured by the above-described measurement method. Viscosity value and pH of the liquid cosmetics, color development, fixation, sebum resistance, water adhesion resistance, and dryness were evaluated by the following evaluation methods. These results are shown in Table 1 below. It was confirmed that the average particle size of the pigment (coloring material) containing the iron oxide pigment in the water-based liquid cosmetics (after dispersion) of Examples 1 to 12 and Comparative Examples 1 to 4 was 300 nm or less.
- a cosmetic composition that is an aqueous liquid cosmetic having the formulation shown in Table 1 below is prepared according to the procedure that has been conventionally used, namely, in purified water as a vehicle, an iron oxide pigment as a coloring material, and a poly dispersant as a dispersant. After adding an organic acid and dispersing using Labstar (manufactured by Ashizawa Fine Tech Co., Ltd.) as a dispersing machine, other components were added and mixed.
- Labstar manufactured by Ashizawa Fine Tech Co., Ltd.
- *1 to *8 in Table 1 above are as follows.
- the water-based liquid cosmetics of Examples 1 to 12 which fall within the scope of the present disclosure, are superior in color developability, It was found to be a water-based liquid cosmetic excellent in fixation, sebum resistance, water adhesion resistance, and drying property.
- a cosmetic composition (compounding unit: mass %, total amount 100 mass %) to be a water-based liquid cosmetic having the formulation of the second disclosure shown in Table 2 below was prepared by the following method, and measured by the above-described measurement method. Adhesion, sebum resistance, water adhesion resistance, dryness, and applicability over time were evaluated by the viscosity, pH, surface tension, and evaluation methods described below. These results are shown in Table 2 below.
- a cosmetic composition that is a water-based liquid cosmetic having the formulation shown in Table 2 below is prepared according to the procedure that has been conventionally used, namely, in purified water as a vehicle, a pigment mainly composed of carbon as a coloring material, a water-soluble and an acrylic copolymer, and after dispersing using Labstar (manufactured by Ashizawa Fine Tech Co., Ltd.) as a dispersing machine, other components were added and mixed.
- Labstar manufactured by Ashizawa Fine Tech Co., Ltd.
- the direct liquid eyeliner of FIG. 4 was filled with the obtained water-based liquid cosmetic, and after applying it to the skin, the applied surface was rubbed with the pad of a finger, and adhesion was evaluated according to the following evaluation criteria.
- the obtained water-based liquid cosmetic was filled in the direct liquid eyeliner of FIG. Evaluation criteria: A: The liquid does not adhere to a tissue or the like. ⁇ : The liquid slightly adheres to a tissue or the like. ⁇ : The liquid adheres to a tissue or the like. x: Most of the liquid has transferred to a tissue or the like.
- a water-based liquid cosmetic that can be accommodated in a liquid cosmetic applicator suitable for makeup cosmetics such as eyeshadow, eyeliner, eyebrow, and mascara can be obtained.
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Abstract
Description
この特許文献1は、顔料の半分以上の重量をカーボンブラックとすることにより、水溶性樹脂により分散を十分に行い描線の濃さに優れ、化粧膜を均一性よく形成させることが記載されているが、酸化鉄顔料よりも比重の軽いカーボンブラックの比率を多くすることにより、少しでも顔料の沈降を抑制しようとしていることが覗える。この場合、他の比重の大きい(酸化鉄などの)無機顔料を併用すると、いわゆる色別れの課題が起きやすく、均一な描線が引けるとは言えなくなるものであり、更なる改善が望まれていた。
しかしながら、この文献3に記載の化粧料では、上記温水で洗い流すことができることと引き換えに、抱水性油剤を必須成分としているため、塗布後に乾燥させても、塗膜内に水分が残留してしまい、耐水性を有すると言っても、汗や涙等の水分でも固着が溶けてしまうなどの可能性があった。
また、本第2開示は、上記した従来技術となる特許文献1,3などの水系液体化粧料の課題、現状等に鑑み、これらを解消しようとするものであり、色材としてカーボンブラック等の顔料を含み、界面活性剤を含まない構成としても描線の固着性とクレンジング性とを高度に両立できる、アイシャドウ、アイライナー、アイブロウ、マスカラなどのメークアップ化粧料などに好適な水系液体化粧料を提供することを目的とする。
また、本発明者らは、上記従来の特許文献1,3などの課題等に鑑み、鋭意検討した結果、塗布液貯蔵部から塗布部へ毛細管力を用いて送液するタイプの塗布具に収容される化粧料であって、少なくとも、炭素を主成分とする顔料と、特定の水溶性のアクリル系コポリマーと、アクリレーツコポリマーを含むコア-シェル型のエマルジョン粒子と、水系溶剤を含むことなどにより、上記目的の水系液体化粧料が得られることを見出し、本第2開示を完成するに至ったのである。
前記ポリ有機酸は、下記A群より選ばれる少なくとも1種であることが好ましい。
A群:ポリアスパラギン酸、ポリ乳酸、ポリリン酸、ポリアクリル酸
前記アクリレーツコポリマーを含むエマルション粒子は、コア-シェル型のエマルション粒子であることが好ましい。
前記水系溶剤は、水、炭素数5以下の低級アルコール、多価アルコールから選ばれることが好ましい。
更に、酸化鉄顔料以外の無機顔料を含むことが好ましい。
X群:(スチレン/アクリレーツ)コポリマー、アクリレーツコポリマーアンモニウム
前記炭素を主成分とする顔料が、カーボンブラック及び/又は黒鉛から選ばれるものが好ましい。
水系溶剤が水、炭素数6以下の低級アルコール又は多価アルコールから選ばれるものであることが好ましい。
水の含有量は50質量%以上であることが好ましい。
前記塗布具の塗布部が穂筆から構成されていることが好ましい。
更に、酸化鉄顔料以外の無機顔料を含むことが好ましい。
本明細書において、「水系」というのは、水及び/又は水溶性有機溶剤を主溶剤とする単一系(W/Oエマルション、O/Wエマルション等ではない)の組成である。また、「本開示」というときは、本第1開示の水系液体化粧料、本第2開示の水系液体化粧料の両方の開示内容を含むことをいう。
本第2開示によれば、色材としてカーボンブラック等の顔料を含み、界面活性剤を含まない構成としても描線の固着性とクレンジング性とを高度に両立できる、アイシャドウ、アイライナー、アイブロウ、マスカラなどのメークアップ化粧料などに好適な水系液体化粧料が提供される。
本開示の目的及び効果は、特に請求項において指摘される構成要素及び組み合わせを用いることによって認識され且つ得られるものである。上述の一般的な説明及び後述の詳細な説明の両方は、例示的及び説明的なものであり、特許請求の範囲に記載されている本開示を制限するものではない。
本第1開示の水系液体化粧料は、塗布部に穂筆を有するペンタイプの塗布具に収容される化粧料であって、少なくとも酸化鉄顔料と、ポリ有機酸又はポリ有機酸塩と、アクリレーツコポリマーを含むエマルション粒子と、ノニオン系界面活性剤と、水系溶剤とを含むことを特徴とするものである。
また、用いることができる酸化鉄顔料(粒子)の分散前(配合時)の平均粒子径は、酸化鉄顔料種により変動するものであるが、例えば、べんがら、黒酸化鉄、黄酸化鉄では、平均粒子径が2000nm以下のもの、好ましくは、100~1000nmのものを用いることができる。
本第1開示では、上記酸化鉄顔料の中でも、高比重であり、茶色系のアイライナーなどの目元化粧料等に有用な色材となるべんがらを用いても、分散性に優れ、色別れもない目的の効果を奏するものとなる。
本開示(実施例を含む)において、「平均粒子径」は、動的光散乱法〔粒径アナライザー FPAR-1000、大塚電子社製〕により測定し算出した値をいう。
この酸化鉄顔料の含有量が0.3質量%未満では、発色が不十分であり、また、隠ぺい力も不足し、一方、20質量%を超えて含有すると、粘度が高くなり、また、筆記に支障を来すこととなり、好ましくない。
これらの無機顔料は、色材として用いるものであり、カーボンブラックを選択した場合は,上記酸化鉄顔料との併用により、黒色系や茶色系に調色することができる。用いることができるカーボンブラックを含む上記無機顔料は、液体化粧料に用いられているものであれば、特に限定されずに用いることができる。これらの無機顔料も平均粒子径が2000nm以下のもの、好ましくは、100~1000nmのものを用いることができる。
これらの酸化鉄顔料以外の無機顔料の含有量は、化粧料組成物全量に対して、0~15質量%が好ましく、酸化チタンを用いないで上記酸化鉄顔料との併用により茶色系、黒色系などの各色に調色する場合などには、0.1~3質量%程度である。
A群:ポリアスパラギン酸、ポリ乳酸、ポリリン酸、ポリアクリル酸
用いるポリ有機酸塩は、上記A群のポリアスパラギン酸、ポリ乳酸、ポリリン酸、ポリアクリル酸の各塩が挙げられ、これらの塩のうち一種以上のいずれかを少なくとも含んでいればよい。これらの塩の種類としては、アルカリ金属塩、アルカリ土類金属塩、アンモニウム塩、アルカノールアミン塩などが挙げられ、ナトリウム塩、カリウム塩、リチウム塩が特に好ましい。
これらのポリ有機酸又はポリ有機酸塩の中で、特に、ポリアスパラギン酸又はその塩は分散安定性が優れており、特に好ましくは、ポリアスパラギン酸ナトリウムが望ましい。
これらのポリ有機酸、ポリ有機酸塩の含有量が0.2質量%以上とすることにより、色材であるベンガラなどの酸化鉄顔料の分散安定性が良好となり、一方、2.0質量%以下とすることにより、良好な粘度域となり、分散安定性の向上が図られる。
用いることができるエマルション粒子としては、例えば、スチレン・アクリル酸アルキル共重合体エマルション、スチレン・メタクリル酸アルキル共重合体エマルション、アクリル酸、メタクリル酸、又はそれらの(C1~C4及びC8)アルキルエステルの成分からなる共重合体エマルション等が挙げられる。
また、エチレン性不飽和カルボン酸系モノマーとスチレン系モノマーのコポリマーと他の重合体および/または共重合体からなるコア-シェル型ポリマーエマルションのような複合型ポリマーのエマルションであってもよい。
また、エチレン性不飽和カルボン酸系モノマーとスチレン系モノマーのコポリマーと他の重合体および/または共重合体からなるコア-シェル型ポリマーエマルションのエマルションの具体例としては、アクリル酸エチルヘキシル/メタクリル酸コポリマー〔(アクリレーツ/メチルスチレン/スチレン)コポリマーアンモニウム〕のコア-シェル型共重合体のエマルションであるエマポリーCE-119N(岐阜セラック社製)が挙げられる。
好ましくは、造膜性、描線の固着性の点から、アクリレーツコポリマーを含むものが好ましく、更に好ましくは、上記コア-シェル型ポリマーエマルションの使用が望ましい。
このエマルション粒子の含有量が1質量%未満であると、固着性、耐水固着性が低下し、逆に、30質量%を超えると、液体化粧料の粘度が上昇し、塗布することが難しくなる。
これらの中でも、その分子構造および親水性の点から、POE(20)セチルエーテル(セテス-20)、POE(30)ベヘニルエーテル(ベヘネス-30)、POE(20)ステアリルエーテル、POE(10)オレイルエーテルの使用が好ましい。
炭素数5以下の低級アルコールとしては、具体的には、メチルアルコール(メタノール)、エチルアルコール(エタノール)、n-プロピルアルコール、イソプロピルアルコール、n-ブチルアルコール、sec-ブチルアルコール、tert-ブチルアルコール、イソブチルアルコール、ペンチルアルコール、エチレングリコール、プロピレングリコール等の少なくとも1種挙げられる。
また、多価アルコールとしては、例えば、グリセリン、エリトリトール、トレイトール、アラビニトール、キシリトール、リビトール、プロピレングリコール、1,3-ブチレングリコール、1,2-ペンタンジオール、エチレングリコール、ジエチレングリコール、ペンタエリスリトール等が挙げられる。
特に、安全性、取り扱い性などの点から、エチルアルコール(エタノール)の使用が望ましい。
この水系溶剤の含有量を45質量%以上とすることにより、滑かな書き味と保湿性とを発揮でき、また、僅かではあるが防腐効果が発揮されることとなり、一方、85質量%以下とすることにより、分散安定性が更に良好となる。
本第1開示に用いる溶媒となる水としては、蒸溜水、イオン交換水、精製水、純水、超純水などを用いることができ、経時安定性、酸化鉄顔料の分散性を更に良好とする点から、水系溶剤(水+水以外の溶剤)に対する比率は、70~100質量%(50~80質量%)とすることが好ましく、特に好ましくは、80~90質量%とすることが望ましい。
この粘度が15mPa・sを超えると、水系液体化粧料の流出性が著しく低下するため、好ましくない。
上記粘度範囲の調整は、用いる酸化鉄顔料種及びその平均粒子径、ポリ有機酸又はポリ有機酸塩、アクリレーツコポリマーを含むエマルション粒子と、ノニオン系界面活性剤、水系溶剤などの各原料を好適に組み合せると共に、各含有量を好適な範囲に組み合わせること、好適な分散方法などにより行うことができる。
なお、本第1開示において粘度測定条件(後述する実施例等も含む)は、具体的には、得られた化粧料組成物を東機産業社製、ELD型粘度計、標準ローター:50rpm(ずり速度:192〔s-1])、温度25℃で測定した。
また、本第1開示の水系液体化粧料は、溶解性の向上、皮膚刺激性を抑える点などから、ガラス電極を用いてpH(25℃)を測定した際のpHが6~9の範囲であることが好ましい。pHの調整は、上述のpH調整剤などを用いて調整される。
好ましくは、分散機として(多連式)超音波ホモジナイザー、高圧ホモジナイザーを用いる場合、分散条件として、例えば、超音波ホモジナイザーの場合は、周波数20~30KHzとし、高圧ホモジナイザーの場合は、圧力150~245MPaとすることにより化粧料中(分散後)の酸化鉄顔料の平均粒子径を300nm以下に調製することができる。
用いることができる液体化粧料塗布具としては、例えば、アイライナー用又はアイブロウ用である穂筆又はペン芯を備えた液体化粧料塗布具であれば、特に限定されない。
好ましくは、塗布手段としてアイライナー用又はアイブロウ用である穂筆(筆ペン)や、ペン芯や、並びに、ゴム、エラストマー、または復元性を有する独立気泡体から構成される塗布手段となる塗布体を具備し、液体化粧料を充填する容器を有する塗布具が挙げられる。
回転式繰出タイプの液体化粧料塗布具Aは、図1に示すように、液押圧機構10により、液押圧機構10の前方に内蔵された本開示の液体化粧料(以下、単に「液体化粧料」という」)を吐出させる貯留部となる化粧料内蔵容器11の前方に具備された、穂筆(筆ペン)で形成した塗布部30を有するものである。
液押圧機構10は、軸本体12後端部に配設された繰り出し部材13を軸本体12に対して周方向に相対回転させることにより容器(貯留部)11内の液体化粧料を繰り出すことにより塗布部30に供給される構成となっている。
この塗布具において、軸本体12の前端部12aには、シール部18、継手部材19、先軸20、塗布部30が嵌入により取り付けられる。軸本体12の貯留部11には、液体化粧料が収容され、その貯留部11から繰出された液体化粧料は継手部材19内の流路を通り塗布部30に吐出されて塗布可能になる。また、使用後にキャップ40を塗布部30及び先軸20を覆うように先軸20に装着できるよう形成されている。
更に、図示符号23は、未使用時における塗布部30に向かう液体化粧料の流通路を閉鎖する位置にシール部18、継手部材19、先軸20、塗布部30を位置させるため、前記先軸20後端と軸本体12前端部12aの段状箇所前面との間にリング状部が装着されたストッパーである。このストッパー23は、リング状部の一部が切り離され、その切り離された箇所の反対側に摘み片が一体形成され、摘み片を引くことによって、リング状部が切り離し箇所から拡径して前記先軸20後端と軸本体12の前端部12aとの間から取り外せるものになっている。
なお、この実施形態の化粧料内蔵型塗布具では、図2に示すように、軸筒110内の中央部から先端部110aにかけてインク吸蔵体の中綿126を収容しており、中綿126は軸筒110の後端から嵌入された尾栓128によって封止かつ支持されている。
保持部材116の先端部は軸筒先端部110aよりも先方に位置して塗布部114の外周面114bを覆い、保持部材外周面116aが円錐側面形状またはテーパ状に先細になっている。
この収容空間214a内には、中綿等の含浸体を配置せず、直接塗布液が収容されており、また、該塗布液の撹拌をするための撹拌体(ボール等)214cが配置されている。
前記コレクター216は、先軸210及び軸本体212によって覆われて保持される構造である。
そして、先軸210の前端部の開口から、先細のテーパ状を呈した筆体からなる筆記部218が突出しており、その筆記部218を覆うキャップが前記先軸210に着脱自在に嵌合する構造である。前記先軸210はほぼ円錐側面形状を呈して先細く形成されており、該先軸210の先端角度は、筆記部218の先端角度と略同角度に形成することが望ましい。
キャップ内には、筆記部218の気密性を高めるため覆うカップ状のインナーキャップが前後動可能に配置され、このインナーキャップを後方に付勢するスプリングが配置されている。
中芯222においては、コレクター216の後端部から軸体214の収容空間214a内に中芯222が突出していない(図3(b)参照)。コレクター216の後端面に中芯222の後端面がほぼ一致している。中芯222を一致させることで、収容空間214a内に中芯222の後端が突出することがなく、収容空間214a内の容積を確保することができる。また、収容空間214a内に中芯222の後端が突出することがないので、撹拌体214cを収容空間214a内に設けた場合、撹拌体214cが収容空間214a内で動いても中芯222に衝突せず中芯222を変形させることないので、十分に塗布液を浸透することができる。中芯の気孔率による顔料の上下濃度差の違いに触れる。
また、上記形態の液体化粧料塗布具の液押圧機構として、図1に示す、回転式繰出タイプとなる塗布具を用いたが、ノック式繰出タイプとなる液体化粧料塗布具を用いても良いものである。
また、製造時、液を軸に充填するときの液の撹拌が不要である。更に、図1又は図3に示すような塗布具容器の場合、夫々撹拌体が備わっているものの、ユーザーが撹拌する必要もなく、また、塗布したときの色変化もない。
本第2開示の水系液体化粧料は、塗布液貯蔵部から塗布部へ毛細管力を用いて送液するタイプの塗布具に収容される化粧料であって、少なくとも、炭素を主成分とする顔料と、下記X群より選ばれる水溶性のアクリル系コポリマーと、アクリレーツコポリマーを含むコア-シェル型のエマルジョン粒子と、水系溶剤を含むことを特徴とするものである。
X群:スチレンアクリレーツコポリマー、スチレンアクリル酸コポリマー、メチルスチレンアクリル酸コポリマー
これらの炭素を主成分とする顔料の粒子形状は、球状、粒状、棒状、針状、板状、不定形など特に制限されず、いずれの形状も用いることができる。
また、用いることができる炭素を主成分とする顔料(粒子)の分散前(配合時)の平均粒子径は、化粧料の用途、顔料種により変動するものであるが、例えば、カーボンブラックでは、平均粒子径が2000nm以下のもの、好ましくは、100~1000nmのものを用いることができる。
本開示(実施例を含む)において、「平均粒子径」は、動的光散乱法〔粒径アナライザー FPAR-1000、大塚電子社製〕により測定し算出した値をいう。
この炭素を主成分とする顔料の含有量が1質量%未満では、発色が不十分で、また、隠ぺい力も不足し、一方、20質量%を超えて含有すると、粘度が高くなり、また、筆記に支障をきたすこととなり、好ましくない。
(スチレン/アクリレーツ)コポリマーとしては、スチレン・アクリル酸アルキル共重合体、このポリマーの市販品としては、SYNTRAN EX149PE(インターポリマー社製)等が挙げられる。
アクリレーツコポリマーアンモニウムとしては、アクリル酸アルキル共重合体、このポリマーの市販品としては、SYNTRAN 5402(インターポリマー社製)等が挙げられる。
この水溶性のアクリル系コポリマーの含有量を0.1質量%以上とすることにより、顔料の分散性と分散安定性を向上させることができ、逆に、5.0質量%以下とすることにより、液体化粧料の粘度の上昇を抑制し、良好な塗布性能を発揮することができる。
具体的には、アクリル酸エチルヘキシル/メタクリル酸コポリマー〔(アクリレーツ/メチルスチレン/スチレン)コポリマーアンモニウム〕のコア-シェル型共重合体のエマルションであるエマポリーCE-119N(岐阜セラック社製)が挙げられる。
好ましくは、造膜性、描線の固着性の点から、アクリレーツコポリマーを含むものが好ましく、更に好ましくは、上記コア-シェル型ポリマーエマルションの使用が望ましい。
このエマルション粒子の含有量が1質量%未満であると、固着性、耐水固着性が低下し、逆に、40質量%を超えると、液体化粧料の粘度が上昇し、塗布することが難しくなる。
炭素数6以下の低級アルコールとしては、具体的には、メチルアルコール(メタノール)、エチルアルコール(エタノール)、n-プロピルアルコール、イソプロピルアルコール、n-ブチルアルコール、sec-ブチルアルコール、tert-ブチルアルコール、イソブチルアルコール、ペンチルアルコール、エチレングリコール、プロピレングリコール等の少なくとも1種挙げられる。
また、多価アルコールとしては、例えば、グリセリン、エリトリトール、トレイトール、アラビニトール、キシリトール、リビトール、プロピレングリコール、1,3-ブチレングリコール、1,2-ペンタンジオール、エチレングリコール、ジエチレングリコール、ペンタエリスリトール等が挙げられる。
特に、安全性、取り扱い性などの点から、エチルアルコール(エタノール)の使用が望ましい。
この水系溶剤の含有量を45質量%以上とすることにより、滑かな書き味と保湿性を発揮でき、また、僅かではあるが防腐効果が発揮されることとなり、一方、85質量%以下とすることにより、描線の耐にじみ性が更に良好となる。
本第2開示に用いる溶媒となる水としては、蒸溜水、イオン交換水、精製水、純水、超純水などを用いることができ、経時安定性、カーボンブラックの分散性を更に良好とする点から、水系溶剤(水+水以外の溶剤)に対する比率は、50~100質量%(0.5~1.0)とすることが好ましく、特に好ましくは、80~95質量%とすることが望ましい。
この粘度が15mPa・sを超えると、水系液体化粧料の流出性が著しく低下するため、好ましくない。
上記粘度範囲の調整は、用いる炭素を主成分とする顔料及びその平均粒子径、水溶性のアクリル系コポリマー、アクリレーツコポリマーを含むエマルション粒子と、水系溶剤などの各原料を好適に組み合せると共に、各含有量を好適な範囲に組み合わせること、好適な分散方法などにより行うことができる。
なお、本開示において粘度測定条件(後述する実施例等も含む)は、具体的には、得られた化粧料組成物を東機産業社製、ELD型粘度計、標準ローター:50rpm(ずり速度:192〔s-1〕)、温度25℃で測定した。
本開示(後述する実施例を含む)において、表面張力の測定は、協和界面化学社製のCBVP-Z型表面張力計(プレート法)を用い、温度25℃で得られた値をいう。
なお、上記表面張力の範囲にするためには、カーボンブラックなどの炭素を主成分とする顔料、水溶性のアクリル系コポリマー、アクリレーツコポリマーを含むエマルション粒子などの各成分の量を好適に組み合わせるにより行うことができる。
好ましくは、分散機として(多連式)超音波ホモジナイザー、高圧ホモジナイザーを用いる場合、分散条件として、例えば、超音波ホモジナイザーの場合は、周波数20~30KHzとし、高圧ホモジナイザーの場合は、圧力150~245MPaとすることにより化粧料中(分散後)の炭素を主成分とする顔料の平均粒子径を200nm以下に調製することができる。
用いることができる液体化粧料塗布具としては、例えば、アイライナー用又はアイブロウ用である穂筆又はペン芯を備えた液体化粧料塗布具であれば、特に限定されない。
好ましくは、塗布手段としてアイライナー用又はアイブロウ用である穂筆(筆ペン)や、ペン芯や、並びに、ゴム、エラストマー、または復元性を有する独立気泡体から構成される塗布手段となる塗布体を具備し、液体化粧料を充填する容器を有する塗布具が挙げられる。
本開示において、好適な液体化粧料塗布具としては、目元周りなどのポイントメイクに適したアイライナー、アイシャドウ、アイブロウ、または、皮膚に液体化粧料組成物(塗布液)を好適に塗布することができる構造となる液体化粧料塗布具であれば、特に限定されないが、好ましくは、使用性、簡便性、塗布性に優れる、中綿に液体化粧料を保持させる中綿式容器又は枚葉体に液体化粧料を保持させるコレクター式容器を有するものや、液体化粧料組成物が直接塗布液貯蔵部に貯蔵され、塗布液の吐出機構がノック式、回転(回動)式の液体化粧料塗布具などが挙げられる。
この形態の液体化粧料塗布具としては、図4~図5に示す、液体化粧料塗布具が挙げられる。
本第2開示の実施形態の液体化粧料塗布具Dは、図4に示すように、塗布具本体となる軸本体50の前方内部に設けられた上記構成となる本開示の液体化粧料組成物である塗布液の貯留部(収容部)51と、前記軸本体50の前端部に装着され、使用開始前は貯留部(収容部)51を密閉する栓体52と、前記栓体52に装着され、前記貯留部(収容部)51の密閉状態を維持し、前記栓体52から取り外されることにより、前記貯留部(収容部)51の密閉状態を開放し、塗布液を貯留部(収容部)51から吐出状態になすシールボール53を備えている。
この先軸60には、先軸本体61と、前記先軸本体61に装着された、貯留部51から穂筆(塗布部)63への塗布液の供給を可能とするパイプ継手62と、前記パイプ継手62と穂筆(塗布部)63とを繋ぐ塗布液導通管64とを備えている。
そして、図5に示すように、使用開始時にストッパー54が取り外されることによって、先軸60は、ストッパー54の長さ分、軸方向に移動して、軸本体50に当接する。即ち、先軸60のパイプ継手62と前記栓体52とが接合し、パイプ継手62の先端部によって栓体52に装着されているシールボール53が取り外される。
その結果、貯留部(収容部)51の密閉状態が開放され、貯留部51から穂筆(塗布部)63への塗布液の供給が可能な状態になされる。
なお、図4、5において、符号55は、塗布液を撹拌する撹拌ボールである。また前記塗布液吐出機構70については、本出願人が先に提案した特開2012-157611号公報に開示されている。前記塗布液吐出機構70は、天蓋71を回転させることにより、塗布液を導出する回転式のみならず、天蓋71を押圧することにより、塗布液を導出するノック式であっても良い。
その後、キャップ75を取り外し、天蓋71を回転させ、ピストン72を所定距離前進させることにより、塗布液を穂筆63に対して所定量導出し、使用者の被塗布部位に対して塗布液を塗布する。
用いる穂筆63の形状、構造、材質などは、アイライナー、アイシャドウ、アイブロウ、または、皮膚に好適に塗布できるものであれば、特に限定されない。本第2開示の実施形態では、先端がテーパ加工された直線状の合成繊維からなり、かつ断面が非円形状の異形断面の繊維(筆毛)の集合体から構成されると共に、断面形状が異なる複数の種類の筆毛から構成されている。異形断面の筆毛とは、筆毛の軸方向に垂直な面の形状が円形以外のものをいい、例えば、断面形状が略星型、略まゆ型、略十字状、略三角形状、略Y字状、略半円状、略矩形状等のものを挙げることができ、少なくとも1つ以上の突部を有する形状のものなどが挙げられる。合成繊維としては、例えば、ポリエチレンテレフタレート、ポリブチレンテレフタレート、ポリエチレンテレフタレート・イソフタレート共縮合重合体等のポリエステル、ポリエチレン、ポリプロピレン等のポリオレフイン、ナイロン6、ナイロン610、ナイロン612等のポリアミド等の熱可塑性ポリマーを溶融紡糸して得られた合成樹脂製繊維を挙げることができる。
この液体化粧料塗布具Eは、例えば、図6に示すように、本第2開示の液体化粧料組成物80を中綿等に吸蔵させないで直接貯溜する軸体となるタンク部81に充填してなるものが挙げられる。このタンク部81の前部には、タンク部81内の空気が温度上昇等によって膨張した場合にタンク部81から押し出される液体化粧料80をペン先や空気孔からボタ落ちさせないために一時的に保溜する枚葉体(インキ保溜体、コレクター部材)82が内蔵され、コレクター部材82の先端部には塗布体となる筆型のペン先(穂筆)83が設けられた構成となっている。筆型のペン先(穂筆)83としては、上記液体化粧料塗布具Dで用いた異形断面の穂筆63などを用いることができる。
なお、図6中の86,87はホルダー部材であり、88はタンク部81の後部に固着される後部軸体であり、89はインナーキャップを有するキャップである。また、中継芯85を介在させることなく、ペン先83の後部をタンク部81内に直接配置して液体化粧料の導出を行ってもよいものである。
この形態の液体化粧料塗布具Eでは、キャップ89を取り外すことにより、上記液体化粧料塗布具Dと同様に使用に供されることとなる。
この形態の液体化粧料塗布具Fは、例えば、図7に示すように、化粧具本体90内に内軸91を有し、該内軸91内には本第2開示の液化粧料組成物を含浸した中綿等からなる含浸体92が収容され、該含浸体92の先端側には、液体化粧料を塗布するための上記液体化粧料塗布具Dで用いた異形断面の穂筆からなる塗布体93が設けられており、内軸91の後端に尾栓94が固着される構造が挙げられる。なお、95は、内キャップ部96を有するキャップ体である。この形態の液体化粧料塗布具Fでは、キャップ95を取り外すことにより使用に供されることとなる。
なお、上記本第2開示の実施形態の液体化粧料塗布具D~Fでは、穂の繊維が断面が円形以外の異形断面の穂筆を用いたが、本第2開示の水系液体化粧料は上述の如く、皮膚上に塗布しても皮膚の上で掠れず、タレ落ち(ボタ落ち)の少ない低粘度で濃く描ける特性を有するので、上記各実施形態A~Fの穂筆として、先端がテーパ加工された直線状の合成繊維からなり、かつ断面が円形状の断面であってもよいものである。
また、上記形態の液体化粧料塗布具の液押圧機構として、図4に示す、回転式繰出タイプとなる塗布具を用いたが、ノック式繰出タイプとなる液体化粧料塗布具を用いても良いものである。
下記表1に示す本第1開示の配合処方となる水系液体化粧料となる化粧料組成物(配合単位:質量%、全量100質量%)を下記方法により調製し、上述の測定方法により、各液体化粧料の粘度値、pH、下記評価方法により、発色性、固着性、耐皮脂性、耐水固着性、乾燥性について評価した。
これらの結果を下記表1に示す。なお、実施例1~12及び比較例1~4の水系液体化粧料中(分散後)の酸化鉄顔料を含む顔料(色材)の平均粒子径を300nm以下であることを確認した。
下記表1に示す配合処方の水性の液体化粧料となる化粧料組成物を従来用いられてきた手順、即ち、ベヒクルである精製水に、色材である酸化鉄顔料と、分散剤であるポリ有機酸とを加え、分散機としてラボスター(アシザワ・ファインテック社製)を用いて分散させた後にその他の成分を添加して、混合することにより調製した。
得られた各水系液液体化粧料をガラス電極pH計にて、25℃におけるpHを測定した。
(粘度の測定方法)
上記方法で得られた各水系液体化粧料について、25℃での東機産業社製、ELD型粘度計、標準ローター:50rpm(ずり速度:192〔s-1])により粘度を測定した。
図1の直液式アイライナーに、得られた水系液体化粧料を充填し、肌に塗布して、下記評価基準で発色性の評価を行った。
評価基準:
◎:とても発色が良い。
○:発色が良い。
△:あまり発色が良くない。
×:発色が悪い。
図1の直液式アイライナーに、得られた水系液体化粧料を充填し、肌に塗布後、塗布面を指の腹で擦過して、下記評価基準で固着性の評価を行った。
評価基準:
◎:指の腹での擦過による描線変化なし。
○:指の腹での擦過により、描線にわずかな変化が認められる。
△:指の腹での擦過により、描線に変化が認められる。
図1の直液式アイライナーに、得られた水系液体化粧料を充填し、肌に塗布後、人工皮脂をつけ、指の腹で擦過して、下記評価基準で耐皮脂性の評価を行った。
評価基準:
◎:指の腹での擦過による描線変化なし。
○:指の腹での擦過により、描線にわずかな変化がみられる。
△:指の腹での擦過により、描線に変化が認められる。
図1の直液式アイライナーに、得られた水系液体化粧料を充填し、肌に塗布後流水し、指の腹で擦過して、下記評価基準で耐水固着性の評価を行った。
評価基準:
◎:指の腹での擦過による描線変化なし。
○:指の腹での擦過により、描線にわずかな変化がみられる。
△:指の腹での擦過により、描線に変化が認められる。
×:指の腹での擦過により描線が消去された。
図1の直液式アイライナーに、得られた水系液体化粧料を充填し、肌に塗布して一定時間経過後にティッシュで描線をおさえて、下記評価基準で乾燥性の評価を行った。
評価基準:
◎:ティッシュに液が付かない。
○:ティッシュに液が少し付く。
△:ティッシュに液が付く。
×:ティッシュに液の殆どが沁みて移ってしまった。
*1:TALOX ABL-412HP/R-516Pチタン工業社製
*2:CR-50、大東化成社製
*3:上記CR-50に含まれる、大東化成社製
*4:DK BLACK No.2、大東化成社製
*5:エマポリーCE-119N、岐阜セラツク社製
*6:アクアデュウSPA-30B、味の素社製
*7:DD-P10、日光ケミカルズ社製
*8:ヨドゾールGH34F、アクゾノーベル社製
下記表2に示す本第2開示の配合処方となる水系液体化粧料となる化粧料組成物(配合単位:質量%、全量100質量%)を下記方法により調製し、上述の測定方法により、各液体化粧料の粘度値、pH、表面張力、下記評価方法により、固着性、耐皮脂性、耐水固着性、乾燥性、経時塗布性について評価した。
これらの結果を下記表2に示す。
下記表2に示す配合処方の水性の液体化粧料となる化粧料組成物を従来用いられてきた手順、即ち、ベヒクルである精製水に、色材である炭素を主成分とする顔料、水溶性のアクリル系コポリマーとを加え、分散機としてラボスター(アシザワ・ファインテック社製)を用いて分散させた後にその他の成分を添加して、混合することにより調製した。
得られた各水系液液体化粧料をガラス電極pH計にて、25℃におけるpHを測定した。
(粘度の測定方法)
上記方法で得られた各水系液体化粧料について、25℃での東機産業社製、ELD型粘度計、標準ローター:50rpm(ずり速度:192〔s-1〕)により粘度を測定した。
図4の直液式アイライナーに、得られた水系液体化粧料を充填し、肌に塗布後、塗布面を指の腹で擦過して、下記評価基準で固着性の評価を行った。
評価基準:
◎:指の腹での擦過による描線変化なし。
○:指の腹での擦過により、描線にわずかな変化が認められる。
△:指の腹での擦過により、描線に変化が認められる。
×:指の腹での擦過により、描線が消えてしまった。
図4の直液式アイライナーに、得られた水系液体化粧料を充填し、肌に塗布後、人工皮脂をつけ、指の腹で擦過して、下記評価基準で耐皮脂性の評価を行った。
評価基準:
◎:指の腹での擦過による描線変化なし。
○:指の腹での擦過により、描線にわずかな変化が認められる。
△:指の腹での擦過により、描線に変化が認められる。
×:指の腹での擦過により、描線が消えてしまった。
図4の直液式アイライナーに、得られた水系液体化粧料を充填し、肌に塗布後流水し、指の腹で擦過して、下記評価基準で耐水固着性の評価を行った。
評価基準:
◎:指の腹での擦過による描線変化なし。
○:指の腹での擦過により、描線にわずかな変化がみられる。
△:指の腹での擦過により、描線に変化が認められる。
×:指の腹での擦過により、描線が消えてしまった。
図4の直液式アイライナーに、得られた水系液体化粧料を充填し、肌に塗布して一定時間経過後にティッシュ等で描線をおさえて、下記評価基準で乾燥性の評価を行った。
評価基準:
◎:ティッシュ等に液が付着しない。
○:ティッシュ等に液がわずかに付着する。
△:ティッシュ等に液が付着する。
×:ティッシュ等に液のほとんどが移ってしまった。
図4の直液式アイライナーに、得られた水系液体化粧料を充填し、50℃の条件下に1週間、筆先を下向きにして設置して、下記評価基準でコレクタータイプでの液保持性の評価を行った。
評価基準:
○:筆先から液が漏れることがない。
△:筆先から液がわずかに漏れている。
×:筆先から液が漏れている。
*1:DK BLACK No.2、大東化成工業社製
*2:エマポリーCE-119N、岐阜セラツク社製
*3:SYNTRAN EX149PE、インターポリマー社製
*4:SYNTRAN 5402、インターポリマー社製
*5:AMPHOMER HC、ヌーリオン社製
10 軸本体
11 貯留部(収容部)
12 栓体
13 シールボール
14 ストッパー
20 先軸
21 先軸本体
23 穂筆(塗布部)
Claims (10)
- 塗布部に穂筆を有するペンタイプの塗布具に収容される化粧料であって、
少なくとも酸化鉄顔料と、ポリ有機酸又はポリ有機酸塩と、アクリレーツコポリマーを含むエマルション粒子と、ノニオン系界面活性剤と、水系溶剤とを含むことを特徴とする水系液体化粧料。 - 前記ポリ有機酸が、下記A群より選ばれることを特徴とする請求項1に記載の水系液体化粧料。
A群:ポリアスパラギン酸、ポリ乳酸、ポリリン酸、ポリアクリル酸 - 前記アクリレーツコポリマーを含むエマルション粒子がコア-シェル型のエマルション粒子であることを特徴とする請求項1又は2に記載の水系液体化粧料。
- 前記水系溶剤が水、炭素数5以下の低級アルコール、多価アルコールから選ばれることを特徴とする請求項1又は2に記載の水系液体化粧料。
- 更に、酸化鉄顔料以外の無機顔料を含むことを特徴とする請求項1又は2に記載の水系液体化粧料。
- 塗布液貯蔵部から塗布部へ毛細管力を用いて送液するタイプの塗布具に収容される化粧料であって、
少なくとも、炭素を主成分とする顔料と、下記X群より選ばれる水溶性のアクリル系コポリマーと、アクリレーツコポリマーを含むコア-シェル型のエマルジョン粒子と、水系溶剤を含むことを特徴とする水系液体化粧料。
X群:(スチレン/アクリレーツ)コポリマー、アクリレーツコポリマーアンモニウム - 前記炭素を主成分とする顔料が、カーボンブラック及び/又は黒鉛から選ばれることを特徴とする請求項6に記載の水系液体化粧料。
- 水系溶剤が水、炭素数6以下の低級アルコール又は多価アルコールから選ばれることを特徴とする請求項6又は7に記載の水系液体化粧料。
- 水の含有量が50%以上であることを特徴とする請求項8に記載の水系液体化粧料。
- 前記塗布具の塗布部が穂筆であることを特徴とする請求項6又は7に記載の水系液体化粧料。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/706,826 US20250281370A1 (en) | 2021-11-08 | 2022-11-07 | Aqueous liquid cosmetic |
| EP22890059.3A EP4431158A4 (en) | 2021-11-08 | 2022-11-07 | AQUEOUS LIQUID COSMETIC |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2021-182049 | 2021-11-08 | ||
| JP2021182049A JP2023069871A (ja) | 2021-11-08 | 2021-11-08 | 水系液体化粧料 |
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| Publication Number | Publication Date |
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| WO2023080239A1 true WO2023080239A1 (ja) | 2023-05-11 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2022/041410 Ceased WO2023080239A1 (ja) | 2021-11-08 | 2022-11-07 | 水系液体化粧料 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20250281370A1 (ja) |
| EP (1) | EP4431158A4 (ja) |
| JP (1) | JP2023069871A (ja) |
| WO (1) | WO2023080239A1 (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023106375A1 (ja) * | 2021-12-08 | 2023-06-15 | 三菱鉛筆株式会社 | 水系液体化粧料 |
| JP2025035245A (ja) * | 2023-09-01 | 2025-03-13 | 三菱鉛筆株式会社 | 水系液体化粧料 |
| JP2025153581A (ja) * | 2024-03-29 | 2025-10-10 | ぺんてる株式会社 | 液体化粧料及び塗布具 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010265225A (ja) | 2009-05-15 | 2010-11-25 | Pola Chem Ind Inc | メークアップ化粧料 |
| JP2012157611A (ja) | 2011-02-02 | 2012-08-23 | Mitsubishi Pencil Co Ltd | 塗布具 |
| JP2020070259A (ja) | 2018-10-31 | 2020-05-07 | 株式会社トキワ | 水系液状化粧料 |
| JP2020132619A (ja) | 2019-02-18 | 2020-08-31 | 株式会社トキワ | 水系液状化粧料 |
| WO2020230706A1 (ja) * | 2019-05-14 | 2020-11-19 | ジェイオーコスメティックス株式会社 | 水性液体化粧料 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4287636B2 (ja) * | 2001-12-03 | 2009-07-01 | 御国色素株式会社 | 化粧料用顔料分散液 |
| JP4119297B2 (ja) * | 2003-04-17 | 2008-07-16 | 株式会社日本色材工業研究所 | 筆ペン型化粧料 |
| JP2005330222A (ja) * | 2004-05-19 | 2005-12-02 | Mikuni Color Ltd | 水系メイクアップ用顔料分散液及びこれを用いたアイライナー並びに化粧料 |
| KR102901198B1 (ko) * | 2019-02-18 | 2025-12-16 | 가부시키가이샤 도끼와 | 수계 액상 화장료 |
-
2021
- 2021-11-08 JP JP2021182049A patent/JP2023069871A/ja active Pending
-
2022
- 2022-11-07 EP EP22890059.3A patent/EP4431158A4/en active Pending
- 2022-11-07 US US18/706,826 patent/US20250281370A1/en active Pending
- 2022-11-07 WO PCT/JP2022/041410 patent/WO2023080239A1/ja not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010265225A (ja) | 2009-05-15 | 2010-11-25 | Pola Chem Ind Inc | メークアップ化粧料 |
| JP2012157611A (ja) | 2011-02-02 | 2012-08-23 | Mitsubishi Pencil Co Ltd | 塗布具 |
| JP2020070259A (ja) | 2018-10-31 | 2020-05-07 | 株式会社トキワ | 水系液状化粧料 |
| JP2020132619A (ja) | 2019-02-18 | 2020-08-31 | 株式会社トキワ | 水系液状化粧料 |
| WO2020230706A1 (ja) * | 2019-05-14 | 2020-11-19 | ジェイオーコスメティックス株式会社 | 水性液体化粧料 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4431158A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20250281370A1 (en) | 2025-09-11 |
| EP4431158A4 (en) | 2026-02-11 |
| JP2023069871A (ja) | 2023-05-18 |
| EP4431158A1 (en) | 2024-09-18 |
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