Water-based liquid cosmetic

Abstract

To provide a highly colored water-based liquid cosmetic that is suitable for use in makeup cosmetics such as eyeliners, eyeshadows, and eyebrow pencils for drawing lines on eyebrows, and suppresses clustering and settling of coloring agents from happening.SOLUTION: A water-based liquid cosmetic at least includes a plant-derived pigment, a film formation agent, a dispersant, and water. A content of the plant-derived pigment is 1-30 mass% relative to a total amount of the water-based liquid cosmetic. In the Raman spectrum of the plant-derived pigment, an intensity ratio (G / D) of a D band (1350 cm-1) to a G band (1582 cm-1) is in a range of 0.5-10. A liquid cosmetic applicator 10 according to the present invention is equipped with the water-based liquid cosmetic of the above-mentioned structure.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an aqueous liquid cosmetic composition suitable for use in make-up cosmetics such as eyeliner, eyeshadow, eyebrow lining, and mascara. [Background technology]

[0002] Black pigments have been used in makeup cosmetics such as eyeliner, eyeshadow, eyebrow lining, and mascara, and the black pigment used is black iron oxide (see, for example, Patent Document 1). The formulation of black iron oxide has a high specific gravity and has problems such as a decrease in color strength of the drawn line and low coloring due to settling.

[0003] Meanwhile, in recent years, water-based liquid cosmetics using charcoal or the like as a black pigment have become known, taking into consideration reduction in environmental impact, safety, and the like. For example, known compositions include (1) a liquid cosmetic composition containing 50 to 90% by mass of water and 1 to 10% by mass of charcoal having an average particle size of 0.05 to 1 μm (see, for example, Patent Document 2); (2) a vegetable charcoal fine powder that has an average particle size of 0.15 to 0.7 μm and a minimum particle size of 0.1 μm or more controlled by grinding and has a carbon content of 96% by mass or more, and a cosmetic containing this vegetable charcoal fine powder (see, for example, Patent Document 3); and (3) an aqueous dispersion that contains water, at least 22 to 40% by mass of a black pigment, a dispersant that is a polymer or a surfactant with an HLB of 10 or more in a mass% ratio to the black pigment of 30:1 to 3:1, and a polyhydric alcohol in a mass% ratio to the black pigment of 3:1 to 5:3, and is characterized by an average particle size (cumulative average diameter / center diameter) of 340 to 392 nm and a lightness L value of less than 24, and a cosmetic containing this aqueous dispersion (see, for example, Patent Document 4).

[0004] However, although the aqueous liquid cosmetics containing charcoal or vegetable charcoal fine powder of a specific particle size described in Patent Documents 2 to 4 suppress aggregation and sedimentation of coloring materials more than those using conventional iron oxide pigments, there are still cases where the color development and dispersion stability are insufficient, and when incorporated into direct-dispensing eyeliners, eye shadows, and the like, there are still problems such as insufficient discharge, poor writing properties (applicability), and poor water-resistant adhesion after application. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2014-101298 A (Claims, Examples, etc.) [Patent Document 2] JP 2006-22008 A (Claims, Examples, etc.) [Patent Document 3] JP 2022-27367 A (Claims, Examples, etc.) [Patent Document 4] JP 2023-13339 A (claims, examples, etc.) Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in consideration of the above-mentioned conventional problems and the current situation, and aims to solve these problems, and to provide an aqueous liquid cosmetic that has excellent color development and dispersion stability even when using pigments that are well-liked in cosmetics, such as plant-derived raw materials, and that can be discharged satisfactorily even when mounted on a padded liquid cosmetic applicator, as well as a liquid cosmetic applicator for makeup cosmetics such as a direct-dispensing type eyeliner, eyeshadow, eyebrow liner for drawing eyebrows, and mascara, and that further has good writeability (applicability) and water-resistant adhesion after application. [Means for solving the problem]

[0007] As a result of extensive research into the above-mentioned problems in the prior art, the present inventors have found that the above-mentioned objective aqueous liquid cosmetic preparations and the like can be obtained by containing at least predetermined amounts of a plant-derived pigment, a film-forming agent, a dispersant, etc., and by containing a plant-derived pigment with physical properties falling within predetermined ranges, and have thus completed the present invention.

[0008] That is, the aqueous liquid cosmetic preparation of the present invention is an aqueous liquid cosmetic preparation containing at least a plant-derived pigment, a film-forming agent, a dispersant, and water, the plant-derived pigment being contained in an amount of 1 to 30% by mass relative to the total amount of the aqueous liquid cosmetic preparation, and the plant-derived pigment is characterized in that the D band (1350 cm) in the Raman spectrum is larger than that of the water-based liquid cosmetic preparation. -1 ) and G band (1582cm -1 ) is characterized in that the intensity ratio G / D is 0.5 to 10. The plant-derived pigment has a BET specific surface area of ​​20 to 800 m 2 It is preferable that the molecular weight is 1 / g. It is further preferred that the ink contains a pigment selected from the following Group A. Group A: Yellow iron oxide, red iron oxide, black iron oxide, titanium dioxide, red 226, carmine, ferric oxide, gunjo, manganese violet, chromium oxide, lake pigment The film-forming agent is preferably a resin emulsion. The liquid cosmetic applicator of the present invention is characterized in that it is loaded with the water-based liquid cosmetic having the above-mentioned structure. Effect of the Invention

[0009] According to the present invention, there is provided an aqueous liquid cosmetic which has excellent color development and dispersion stability even when using plant-derived pigments such as vegetable charcoal, and which can be discharged satisfactorily even when mounted on a padded liquid cosmetic applicator, as well as on a direct-dispensing type applicator for makeup cosmetics such as eyeliner, eyeshadow, eyebrow liner for drawing eyebrows, and mascara, and which can draw lines with high color development, and which has good writeability (applicability) and water-resistant adhesion after application. The objects and advantages of the invention will 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 but are not restrictive of the invention as claimed. [Brief description of the drawings]

[0010] [Figure 1] 1 is a partial cross-sectional view showing an example of a liquid cosmetic applicator that contains the aqueous liquid cosmetic of the present invention, and the mechanism shown in Fig. 1 is an example of a rotary-type dispenser. [Diagram 2] 2 is a partial cross-sectional view showing another example of a liquid cosmetic applicator that contains the aqueous liquid cosmetic of the present invention.The mechanism shown in Fig. 2 is an example of a built-in cosmetic applicator type. [Diagram 3] Fig. 3(a) is a perspective view showing yet another example of a liquid cosmetic applicator that contains the aqueous liquid cosmetic of the present invention, and Fig. 3(b) is a partial cross-sectional view of the same liquid cosmetic applicator as Fig. 3(a). The mechanism of the liquid cosmetic applicator in Fig. 3(a) and (b) is an example of a collector-type applicator. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The following describes in detail the embodiments of the present invention. However, it should be noted that the technical scope of the present invention is not limited to the embodiments described in detail below, but extends to the inventions described in the claims and their equivalents. The present invention can be implemented based on the contents disclosed in this specification and common technical knowledge in the relevant field (including design matters and obvious matters).

[0012] The aqueous liquid cosmetic preparation of the present invention is an aqueous liquid cosmetic preparation comprising at least a plant-derived pigment, a film-forming agent, a dispersant, and water, the plant-derived pigment being contained in an amount of 1 to 30% by mass relative to the total amount of the aqueous liquid cosmetic preparation, and the plant-derived pigment is characterized in that the D band (1350 cm) in the Raman spectrum of the plant-derived pigment is -1 ) and G band (1582cm -1) is characterized in that the intensity ratio G / D is 0.5 to 10.

[0013] The plant-derived pigments used in the present invention are excellent in terms of reducing the environmental load and being safe, and can be black pigments obtained by firing or processing plants such as wood or grass, or processed products thereof, as raw materials. Examples of plant-derived pigments include at least one type (either alone or as a mixture of two or more types, the same applies below) of plant-derived charcoal such as bamboo charcoal, hemp charcoal, oak charcoal, Japanese oak charcoal, camphor charcoal, chestnut charcoal, Ubamegashi charcoal (Binchotan), larch charcoal, pine charcoal, cedar charcoal, cypress charcoal, eucalyptus charcoal, mangrove charcoal, camellia charcoal, olive charcoal, acacia charcoal, peach black, vine black, activated charcoal, and vegetable carbon (plant-based carbon black) (each alone or as a mixture of two or more types, the same applies below). The particle shape of these plant-derived pigments is not particularly limited and may be spherical, granular, rod-like, needle-like, plate-like, or amorphous, and any shape may be used. Furthermore, the plant-derived pigment (particle) that can be used has an average particle size before dispersion (at the time of blending) of 1 μm or more, preferably 1 to 50 μm, because of concerns about the hazard to human health from the viewpoint of nanomaterials. The shape of the plant-derived pigment is not particularly limited, and can be any shape, such as amorphous, spherical, needle-like, plate-like, or rectangular, and may be solid or hollow, and may further be treated with a surface treatment agent. In the present invention (including the examples), the "average particle size" refers to the volume average particle size (D50) measured and calculated by a dynamic light scattering method (Particle Size Analyzer FPAR-1000, manufactured by Otsuka Electronics Co., Ltd.) or a laser diffraction method (Microtrac MT3000II, manufactured by Microtrac Bell).

[0014] The plant-derived pigments used in the present invention, such as the bamboo charcoal and vegetable carbon, have a G / D ratio, which is the ratio of the peak intensity of the D band to the peak intensity of the G band in a Raman spectrum (Raman spectroscopic analysis), of 0.5 to 10. This G / D ratio will be explained using a Raman spectrum obtained by Raman spectroscopic analysis of a plant-derived pigment (for example, bamboo charcoal or vegetable carbon). The G band is a band with a Raman shift of 1582 cm in the Raman spectrum obtained by Raman spectroscopy at a wavelength of 532 nm. -1 The D band is a peak derived from plant-derived pigments found in the vicinity of the Raman shift of 1350 cm in the Raman spectrum obtained by Raman spectroscopy at a wavelength of 532 nm. -1 These peaks are due to amorphous carbon, graphite, or defects in the plant-derived pigment. Therefore, the higher the G / D ratio, the higher the crystallinity of the plant-derived pigment and the lower the amount of amorphous carbon or graphite with defects contained in the plant-derived pigment.

[0015] The plant-derived pigment according to this embodiment has a G / D ratio of 0.5 to 10, has few defects in amorphous carbon or graphite, and has high crystallinity. Therefore, the plant-derived pigment having a G / D ratio of 0.5 to 10 can have high tensile strength and high color development. The G / D ratio of this plant-derived pigment is preferably 0.5 to 9, more preferably 0.5 to 8, even more preferably 0.5 to 7, even more preferably 0.5 to 6, and especially preferably 0.5 to 5. If the G / D ratio of this plant-derived pigment is less than 0.5, the plant-derived pigment may not have sufficient tensile strength and high color development. Furthermore, if the D / G ratio of the plant-derived pigment exceeds 10, the plant-derived pigment itself may deteriorate, which is not preferable.

[0016] In this specification, the G / D ratio of the plant-derived pigment is a value measured by the following method. The plant-derived pigment used is subjected to Raman spectroscopic analysis under the following conditions to obtain a Raman spectrum. In the Raman spectrum, the G / D ratio is calculated from the peak intensity of the D band and the peak intensity of the G band. (Raman spectroscopic analysis conditions) Dispersive Raman spectrometer manufactured by Horiba, Ltd.: Excitation laser wavelength: 532 nm Objective magnification x10, neutral density filter 5%, exposure time 10 seconds x 3 times Slit 200μm, hole 400μm, 300gr / mm grating

[0017] In addition, the plant-derived pigments used have a BET specific surface area of ​​20 to 800 m from the viewpoint of dispersibility. 2 / g, and more preferably 30 to 400 m 2 / g is preferable. The BET specific surface area in the present invention is a value measured using a Macsorb model HM-1208 manufactured by Mountech Co., Ltd., by a BET single point method, pretreatment conditions of 110° C. for 30 minutes, and nitrogen as the adsorption gas.

[0018] The plant-derived pigments that can be used are those having a G / D ratio in the range of 0.5 to 10, and more preferably those having a BET specific surface area of ​​20 to 800 m. 2 It is desirable to use each plant-derived pigment that falls within the range of / g. Commercially available plant-derived pigments that fall within these ranges include, for example, Bamboo Charcoal Powder 5P (manufactured by Glico Nutrition Foods Co., Ltd.), CHARCOPOWDER (raw material is Kishu Binchotan charcoal, manufactured by Daito Kasei Kogyo Co., Ltd.), fine powder Binchotan powder, Binchotan powder, and Bamboo Charcoal Powder (all manufactured by Kiriya Chemical Co., Ltd.), Food Additive / Umebee A Brand Activated Carbon (manufactured by Taihei Chemical Industry Co., Ltd.), KOELIN-663H (vegetable carbon) (manufactured by KOEL Co., Ltd.), SpecKarre BCP3, SpecKarre BCP5, SpecKarre SuperBlnchotan, SpecKarre BCP super (all manufactured by Spec-Chem Co., Ltd.), Binchotan Powder Pug, Bamboo Charcoal Powder Pug (manufactured by Latest Co., Ltd.), and the like, *not listed because the specific surface area is 800 in the catalog value.

[0019] The content of these plant-derived pigments is from 1 to 30% by mass, preferably from 5 to 20% by mass, and more preferably from 5 to 15% by mass, based on the total amount of the aqueous cosmetic composition. If the content of this plant-derived pigment is less than 1% by mass, the color development will be insufficient and the hiding power will be insufficient, while if it is contained in excess of 30% by mass, the viscosity will increase and application will be hindered, which is not preferable.

[0020] In the present invention, coloring materials other than the above-mentioned plant-derived pigments can be used in combination to the extent that the effects of the present invention are not impaired. Pigments and dyes used in aqueous liquid cosmetics can be used, but in terms of color development, combination with pigments is particularly preferable. Examples of pigments that can be used include inorganic pigments such as carbon black, iron oxide (red, yellow, black), titanium dioxide, titanium black (titanium oxynitride), zinc oxide, talc, chromium oxide, cobalt oxide, zinc oxide, titanium mica, bismuth oxychloride, ultramarine, and konjou, as well as organic pigments such as carmine, Red No. 202, Red No. 220, Red No. 226, Red No. 228, Yellow No. 401, Yellow No. 205, Yellow No. 4 Al Lake, Yellow No. 203 Al Lake, Red No. 40 Al Lake, and Red No. 104 Al Lake, as well as talc, muscovite, phlogopite, red mica, biotite, synthetic mica, sericite, synthetic sericite, kaolin, silicon carbide, smectite, and the like. At least one of the following white body powders may be used in combination: aluminum oxide, magnesium oxide, zirconium oxide, antimony oxide, diatomaceous earth, aluminum silicate, aluminum magnesium metasilicate, calcium silicate, barium silicate, magnesium silicate, calcium carbonate, magnesium carbonate, hydroxyapatite, boron nitride, silicon dioxide, etc.; and luster powders such as titanium dioxide-coated mica, titanium dioxide-coated synthetic phlogopite, titanium dioxide-coated bismuth oxychloride, iron oxide-coated mica, iron oxide-coated mica titanium, iron blue-treated mica titanium, carmine-treated mica titanium, bismuth oxychloride, fish scale foil, titanium dioxide-coated glass powder, and aluminum powder. The above pigments, including the plant-derived black pigments, may be used without any particular limitation as long as they are used in liquid cosmetics.

[0021] From the viewpoint of color development, it is preferable to contain a pigment selected from the following Group A. Group A: Yellow iron oxide, red iron oxide, black iron oxide, titanium dioxide, ferric oxide, ferric oxide, manganese violet, chromium oxide, lake pigment These pigments other than the above-mentioned plant-derived pigments are used as coloring materials, and in particular, when at least one of the pigments in group A is selected, it is possible to achieve gray, brown, or burgundy colors by using it in combination with the above-mentioned plant-derived black pigment. The content of pigments such as those in Group A other than these plant-derived black pigments is preferably 0 to 20% by mass, and more preferably 0 to 15% by mass, based on the total amount of the cosmetic composition.

[0022] The film-forming agent used in the present invention may be one that is composed of a film-forming polymer. For example, a film-forming polymer emulsion particle or the like may be used. Specifically, an aqueous dispersion of a water-insoluble polymer or the like may be used. Examples of the film-forming agent that can be used include styrene-alkyl acrylate copolymer emulsions, styrene-alkyl methacrylate copolymer emulsions, copolymer emulsions consisting of acrylic acid, methacrylic acid, or their (C1-C4 and C8) alkyl esters, etc. Also, the film-forming agent may be a composite polymer emulsion such as a core-shell type polymer emulsion consisting of a copolymer of an ethylenically unsaturated carboxylic acid monomer and a styrene monomer, and another polymer and / or copolymer.

[0023] A specific example of the styrene-alkyl acrylate copolymer emulsion is (styrene / acrylates) copolymer, and examples of commercially available products of this polymer include Yodosol GH41F (manufactured by Nouryon Co., Ltd.) and Daitosol 5000STY (manufactured by Daito Kasei Kogyo Co., Ltd.). A specific example of a core-shell type polymer emulsion consisting of a copolymer of an ethylenically unsaturated carboxylic acid monomer and a styrene monomer and other polymers and / or copolymers is Emapoly CE-119N (manufactured by Gifu Ceramics Co., Ltd.), which is an emulsion of a core-shell type copolymer of ethylhexyl acrylate / methacrylic acid copolymer [ammonium (acrylates / methylstyrene / styrene) copolymer]. From the viewpoints of film-forming properties and line adhesion, it is preferable to use one containing an acrylates copolymer, and more preferably, the above-mentioned core-shell type polymer emulsion is used. In terms of ejection properties, the average particle size of the resin emulsion (emulsion particles) that serves as the film-forming agent is preferably 50 to 300 nm, and more preferably 100 to 200 nm. In the present invention, by using the above-mentioned resin emulsion as the film-forming agent, even plant-derived pigments with relatively large particle diameters are less likely to form a hard cake, have excellent storage stability, and are less likely to separate from the colorant at the application tip (pen tip), making it possible to apply (write) lines with good color development from the very beginning.

[0024] These film-forming agents such as emulsion particles usually have a resin component finely dispersed in an aqueous component at a concentration of 20 to 60% by mass as solid content. The content of the film-forming agent used is 1 to 20 mass% and preferably 5 to 20 mass% based on the total amount of the liquid cosmetic in terms of solid content concentration (active ingredient concentration). Within this range, the drawn lines applied to the skin can be provided with good durability against water, sweat and sebum. If the content of this film-forming agent is less than 1% by mass, adhesion and water-resistant adhesion will decrease, and conversely, if it exceeds 20% by mass, the viscosity of the liquid cosmetic will increase, making it difficult to apply.

[0025] As the dispersant used in the present invention, it is preferable to use a water-soluble dispersant, which improves the dispersibility of pigments such as plant-derived black pigments that serve as coloring materials. Examples of such dispersants include acrylates copolymers, ammonium acrylates copolymers, (styrene / acrylates) copolymers, ammonium (styrene / acrylates) copolymers, (styrene / methylstyrene) copolymers, (acrylates / acrylamide) copolymers, (acrylates / VA) copolymers, (acrylates / VP) copolymers, (acrylates / ethylhexyl acrylate) copolymers, (acrylates / ethylhexyl acrylate / styrene) copolymers, (acrylates / ethylhexyl acrylate / styrene) copolymers, Examples of the dispersing agent include at least one selected from resin-type dispersing agents such as (acrylates / octylacrylamide) copolymer, (acrylates / methylstyrene / styrene) ammonium copolymer, and (ethylhexyl acrylate / methyl methacrylate) copolymer, and surfactant-type dispersing agents such as polyglycerin fatty acid esters, polyoxyethylene glycerin fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene hydrogenated castor oil, polyoxyalkylene sterols, polyoxyethylene alkyl ethers, and polyethylene glycol fatty acid esters.

[0026] Examples of polyglycerol fatty acid esters include glyceryl stearate, polyglyceryl-10 isostearate, polyglyceryl-10 laurate, polyglyceryl-10 myristate, polyglyceryl-10 oleate, polyglyceryl-10 stearate, polyglyceryl-10 diisostearate, polyglyceryl-6 laurate, polyglyceryl-6 myristate, and polyglyceryl-10 palmitate. Examples of polyoxyethylene glycerin fatty acid esters include PEG-7 glyceryl coconut oil fatty acid and PEG-15 glyceryl stearate. Examples of polyoxyethylene sorbitan fatty acid esters include PEG-20 sorbitan isostearate, polysorbate 20, polysorbate 80, PEG-5 sorbitan oleate, polysorbate 85, polysorbate 60, and polysorbate 65. Examples of polyoxyethylene sorbitol fatty acid esters include sorbeth-6 laurate, sorbeth-40 tetraoleate, and sorbeth-60 tetraoleate. Examples of polyoxyethylene hydrogenated castor oils include PEG-20 hydrogenated castor oil, PEG-30 hydrogenated castor oil, PEG-40 hydrogenated castor oil, PEG-50 hydrogenated castor oil, PEG-60 hydrogenated castor oil, PEG-80 hydrogenated castor oil, and PEG-100 hydrogenated castor oil. Examples of polyoxyalkylene sterols include PEG-10 phytosterol, PEG-20 phytosterol, PEG-30 phytosterol, and PEG-25 phytostanol.

[0027] Examples of polyoxyethylene alkyl ethers include beheneth-10, beheneth-20, beheneth-30, ceteth-6, ceteth-7, ceteth-10, ceteth-15, ceteth-20, ceteth-23, ceteth-25, ceteth-30, ceteth-40, laureth-4, laureth-9, laureth-21, laureth-25, oleth-7, oleth-10, oleth-15, oleth-20, oleth-50, steareth-20, (C12-C14) pareth-5, (C12-C14) pareth-7, (C12-C14) pareth-9, and (C12-C14) pareth-12. Examples of polyoxyethylene polyoxypropylene alkyl ethers include PEG-4 ceteth-10, PEG-4 ceteth-20, PEG-8 ceteth-20, PEG-4 ceteth-20, PEG-6 decyltetradeceth-20, and PEG-6 decyltetradeceth-30. Examples of polyethylene glycol fatty acid esters include PEG-10 stearate, PEG-25 stearate, PEG-40 stearate, PEG-45 stearate, and PEG-55 stearate.

[0028] Preferred are those selected from acrylates copolymer, ammonium acrylates copolymer, (styrene / acrylates) copolymer, beheneth-30, ceteth-20, polyglyceryl-10 myristate, polyglyceryl-10 laurate, polysorbate 20, and polysorbate 80. Particularly preferred are resin-type dispersants such as acrylates copolymer, ammonium acrylates copolymer, and (styrene / acrylates) copolymer, which, when dispersed with a resin, provide a formulation that exhibits even better durability, such as water-resistant adhesion and sebum-resistant adhesion, after application. Examples of dispersants that can be used include commercially available products such as SYNTRAN EX149PE, SYNRAN 5402 (both manufactured by Interpolymer), LUVIMER 100P (manufactured by BASF), AMPHOMER HC (manufactured by Nouryon), BC-5.5, BC-7, BC-10, BC-15, BC-20, BC-23, BC-25, BC-30, BC-40, BB-10, BB-20, BB-30, DDP-8, DDP-10, HCO-20, HCO-30, HCO-40, HCO-50, HCO-60, HCO-80, HCO-100, Decaglyn 1-50SV, Decaglyn 1-ISV, Decaglyn 1-L, Decaglyn 1-M, Decaglyn 1-OV, Decaglyn 1-SV, Decaglyn 2-ISV, Decaglyn 1-LVEX, Decaglyn 1-MVEX PN, Decaglyn 1-OVEX, Decaglyn 1-PVEX, Decaglyn 1-ISVEX, Decaglyn 1-SVEX, Hexaglyn 1-L, Hexaglyn 1-M, TI-10V, TL-10, TO-10MV, TO-10V, TO-106V, TO-30V, TS-10MV, TS-10V, TS-30V (all manufactured by Nikko Chemicals).

[0029] The content of these dispersants is preferably 5.0 to 40.0% by mass, more preferably 7 to 30% by mass, based on the total amount of pigments including plant-derived pigments. In the case of resin-type dispersants, the content is expressed as a solid content concentration (active ingredient concentration). By making the content of these dispersants 5.0% by mass or more relative to the total amount of pigment, the dispersion stability of the plant-derived black pigment, which is the coloring material, is improved, while by making the content 30% by mass or less, a good viscosity range is achieved, and pigment sedimentation is improved when the ink is contained in a pen-type applicator having a brush and pen tip in the application section. More preferably, the content ratio of the film-forming agent (X) to the dispersing agent (Y), X / Y, is from 3 to 20, and even more preferably from 5 to 15, on a mass basis, from the standpoint of line drawing durability and stability.

[0030] In the present invention, in addition to the above-mentioned plant-derived pigment, film-forming agent, and dispersant, it is preferable to use an aqueous solvent from the viewpoint of further improving dispersion stability, low-temperature stability, coatability, and the like. The aqueous solvent used is one that is used as a solvent for liquid cosmetics, and includes at least one of water, lower alcohols having 5 or less carbon atoms, and polyhydric alcohols.

[0031] Specific examples of lower alcohols having 5 or less carbon atoms include at least one of methyl alcohol (methanol), ethyl alcohol (ethanol), n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, sec-butyl alcohol, tert-butyl alcohol, isobutyl alcohol, pentyl alcohol, ethylene glycol, and propylene glycol. Examples of polyhydric alcohols include glycerin, erythritol, threitol, arabinitol, xylitol, ribitol, propylene glycol, 1,3-butylene glycol, dipropylene glycol, pentylene glycol, dipentylene glycol, ethylene glycol, diethylene glycol, and pentaerythritol. In particular, from the standpoint of safety, ease of handling, and the like, it is preferable to use ethyl alcohol (ethanol).

[0032] From the standpoint of stability, dispersion stability of the plant-derived pigment, and particularly stability at low temperatures, the total content of the aqueous solvents used is preferably 45 to 85% by mass, and more preferably 50 to 80% by mass, relative to the total amount of the liquid cosmetic. By making the content of this aqueous solvent 45% by mass or more, a smooth writing feel and moisturizing properties can be achieved, and a small preservative effect can also be exerted, while by making it 85% by mass or less, the dispersion stability can be further improved. The water used as the solvent in the present invention may be distilled water, ion-exchanged water, purified water, pure water, ultrapure water, etc., and from the viewpoint of improving the stability over time and the dispersibility of the iron oxide pigment, the ratio of water to the aqueous solvent (water + solvent other than water) is preferably 70 to 100 mass % (50 to 80 mass %), and particularly preferably 80 to 90 mass %.

[0033] Furthermore, in addition to the above-mentioned components, the aqueous liquid cosmetic preparation of the present invention may contain optional components used in ordinary liquid cosmetic preparations, provided that the effects of the present invention are not impaired. Specifically, thickeners (viscosity / viscosity regulators), preservatives, fragrances, moisturizers, cosmetic ingredients, and plant extracts may be used, and antioxidants, neutralizing agents, UV absorbers, chelating agents, pH adjusters, and other dispersants such as polyethylene glycol alkyl ethers may be contained in appropriate amounts, provided that the effects of the present invention are not impaired. The thickener that can be used includes, for example, polysaccharide, polymer, and / or silica thickener.Examples of polysaccharide include starch, glycerite of starch; gum, such as karaya gum (sterculia gum), tragacanth gum, gum arabic, gum ghatti, xanthan gum, guar gum, acacia gum, cellulose gum, magnesium aluminum silicate (Veegum), carrageenan, sodium alginate, agar, pectin, gelatin, cellulose derivatives, such as cellulose, carboxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, hydroxymethylcellulose, hydroxymethylcarboxypropylcellulose, methylcellulose, ethylcellulose, and cellulose sulfate, oxidized cellulose, and crystalline cellulose, and further include natural and synthetic clays, such as bentonite, hectorite clay, and mixtures thereof.

[0034] Examples of preservatives that can be used include iodopropargyl compounds, sodium pentachlorophenol, 1,2-benzisothiazolin-3-one, 2,3,5,6-tetrachloro-4(methylsulfonyl)pyridine, paraoxybenzoic acid esters, phenol, sodium benzoate, sodium dehydroacetate, potassium sorbate, morpholine, cresol, methylisothiazolinone, chloromethylisothiazolinone, octylisothiazolinone, dichlorooctylisothiazolinone, hexahydro-1,3,5-tris(2-his) Hydroxyethyl)-1,3,5-triazine, 2-bromo-2-nitropropane-1,3-diol, sodium 2-pyridinethiol-1-oxide, sodium pyrithione, 2-(4-thiozolyl)benzimidazole, 4-terpinenol, 1,8-cineole, thymol, diisothiocyanate, eucalyptus oil, longifolene, isopropylmethylphenol, 2-methyl-4-isothiazolin-3-one, citral, eugenol, allyl isothiocyanate, d-limonene, tannic acid, -Ethyl paraoxybenzoate Omitted due to similarity, benzalkonium chloride, glyceryl caprylate, glycerin fatty acid esters, chlorphenesin, salicylic acid, ethyl parahydroxybenzoate, butyl parahydroxybenzoate, propyl parahydroxybenzoate, methyl parahydroxybenzoate, bisabolol, hinokitiol, phenylethyl alcohol, phenethyl alcohol, phenoxyethanol, butylparaben, propylparaben, benzalkonium chloride, methylparaben, 2-(4-thiazolyl)benzimidazole, 1,2-propanediol, 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, and ethylhexylglycerin. In the present invention, a plant-derived pigment such as charcoal, which has a weaker preservative effect than pigments such as carbon black, is used, so by adjusting the preservative design so that the above preservatives, particularly preferably 1,2-pentanediol, 1,2-hexanediol, 1,2-octanediol, etc., are contained in an amount of preferably 0.5 to 10 mass%, and more preferably 1 to 5 mass%, based on the total amount of the liquid cosmetic, it is possible to obtain an aqueous liquid cosmetic that satisfies the preservative standards while simultaneously achieving a high degree of the effects of the present invention.

[0035] Examples of fragrances that can be used include anethole, cineole, basil, clary sage, citral, α-pinene, β-pinene, γ-terpinene, nonanol, octanol, citronellal, ionone, methylionone, lavender, marjoram, oregano, patchouli, rosemary, sage, rosewood, clove, cinnamon, thyme, eugenol, linalool, tea tree, α-terpineol, citronellol, limonene, α-terpinene, acetyl cedrene, α- At least one selected from the group consisting of terpenyl acetate, cedrol, lavandulyl acetate, 1,8-cineole, terpinen-4-ol, myrcene, linalyl acetate, benzyl acetate, β-caryophyllene, squaleol, geranyl acetate, neryl acetate, dimethyltetrahydrobenzaldehyde, ambroxan, geranyl nitrile, bacdanol, acetonaphthone, hexamethylhexahydrocyclopentane, benzopyran, coumarin, γ-phenylethyl alcohol, lilial, vanillin, methyl dihydrojasmonate, peppermint oil, sweet orange oil, cedarwood, lavandin oil, geranium oil, lemon oil, citronella oil, and lime oil may be mentioned. Among these, at least one selected from the group consisting of anethole, cineral, citral, lavender, linalool, tea tree, citronellal and geranium is preferred.

[0036] Examples of moisturizers and beauty ingredients that can be used include sodium hyaluronate, panthenol, oligopeptides, sage leaf extract, aloe ferox leaf extract, succinoyl atelocollagen, deep sea water, Mimasaka hot spring water, marine cholesterol, and hydrolyzed silk.

[0037] Examples of plant extracts that can be used include shikonin extract, grape leaf extract, acacia extract, althea extract, aloe extract, ginkgo extract, nettle extract, artemisia extract, fennel extract, mallow extract, angelica tree extract, scutellaria extract, phellodendron bark extract, coptis japonica extract, hypericum extract, seaweed extract, mugwort extract, chamomilla extract, cinchona extract, cucumber extract, honeysuckle extract, sophora flavescens extract, kumazasa extract, gentiana extract, geranium extract, burdock extract, comfrey extract, hawthorn extract, shiitake mushroom extract, rehmannia extract, perilla extract, linden extract, houttuynia cordata extract, sanguisorba extract, white birch extract, horsetail extract, ivy extract, yarrow extract, mulberry extract, and taiso extract. extract, thyme extract, tea extract, clove extract, calendula extract, angelica extract, spruce extract, tomato extract, elder extract, witch hazel extract, loquat leaf extract, coltsfoot extract, horse chestnut extract, melitsa extract, peach leaf extract, saxifrage extract, lavender extract, lemon extract, royal jelly extract, chestnut extract, rose extract (rose centifolia flower extract), apple extract (apple fruit culture cell extract), Swertia japonica extract, Pinus sylvestris cone extract, chamomile flower extract, tea leaf extract, Prunus sativus flower extract, Panax ginseng root extract, brown algae extract, Rosa canina fruit extract, peach leaf extract, olive leaf extract, rosemary extract, and the like. These plant extracts may be used alone or in combination of two or more.

[0038] The aqueous liquid cosmetic composition of the present invention is preferably prepared by subjecting the composition to a temperature of 25° C. and a shear rate of 192 (s -1 ) (50 rpm), shear rate: 38.3 [s-1 It is desirable to adjust the viscosity range of each viscosity (10 rpm) based on the mounting type and application type of the liquid cosmetic applicator. For collector-type or padded liquid cosmetic applicators, the shear rate is 192 [s -1 By setting the viscosity at 200 rpm (50 rpm) to 15 mPa·s or less, and more preferably 2 to 8 mPa·s, excellent discharge properties, good color development, and the ability to draw fresh, clear lines can be achieved. In addition, in the case of direct liquid storage type (piston push type, valve type), the shear rate is 38.3 [s -1 By setting the viscosity value at 10 rpm to between 10 mPa·s and 100 mPa·s, stable ejection properties are maintained, color development is good, and lines can be drawn without bleeding. If the viscosity value exceeds the upper limit (15 mPa·s, 100 mPa·s), the outflow property of the aqueous liquid cosmetic composition will decrease significantly, which is undesirable. In the present invention, even with the above-mentioned low viscosity formulation, it is possible to obtain an aqueous liquid cosmetic with a good formulation design without any difference in concentration between the top and bottom of the liquid cosmetic.

[0039] The above viscosity ranges can be adjusted by appropriately combining the raw materials, such as the plant-derived pigment, film-forming agent, dispersant, and aqueous solvent, and by combining the contents of each ingredient in a suitable range, or by using a suitable dispersion method. In the present invention, the viscosity measurement conditions (including the examples described below) are specifically as follows: the obtained cosmetic composition is measured using an ELD type viscometer manufactured by Toki Sangyo Co., Ltd., standard rotor: shear rate: 192 [ -1 ](50 rpm) or 38.3 [s -1 ] (10 rpm) and temperature of 25°C. In order to improve solubility and reduce skin irritation, the aqueous liquid cosmetic preparation of the present invention preferably has a pH in the range of 6 to 9 when measured at 25° C. using a glass electrode. The pH is adjusted by adjusting the type and amount of each component, or by using the above-mentioned pH adjusters, etc.

[0040] The aqueous liquid cosmetic preparation of the present invention can be prepared by dispersing the above-mentioned plant-derived pigment, film-forming agent, dispersant, aqueous solvent, and other components under suitable dispersion conditions using a dispersing machine such as a homomixer, a sand mill, an ultrasonic homogenizer, or a high-pressure homogenizer. Preferably, when a (multiple-type) ultrasonic homogenizer or high-pressure homogenizer is used as the dispersing machine, optimal dispersion can be achieved by suitably adjusting the dispersion conditions, for example, the frequency in the case of an ultrasonic homogenizer, and the pressure range in the case of a high-pressure homogenizer.

[0041] The obtained aqueous liquid cosmetic containing a plant-derived pigment can be loaded into a collector-type or padded-type liquid cosmetic applicator or a direct liquid storage type (piston extrusion type, valve type) liquid cosmetic applicator, and can be stored (filled) in, for example, a pen-type liquid cosmetic applicator (container) having a brush tip or pen core as the application part, for use. The liquid cosmetic applicator that can be used is not particularly limited, so long as it is a liquid cosmetic applicator of the various mounting types equipped with a brush tip or pen core for eyeliner or eyebrows, for example. Preferred examples of the application means include a brush tip (brush pen) for eyeliner or eyebrows, a pen core, and an applicator having an applicator body serving as the application means composed of rubber, elastomer, or a closed cell having resilience, and having a container for filling with a liquid cosmetic.

[0042] Specifically, as shown in Figures 1, 2, 3(a) and 3(b), it is desirable to use liquid cosmetic applicators that have mechanisms of a rotary dispenser type, a built-in cosmetic applicator type and a collector-type applicator type, which are excellent in usability, simplicity and applicability. As shown in FIG. 1, the rotary-type dispensing liquid cosmetic applicator has an applicator section 30 formed from a brush tip (brush pen) provided in front of a cosmetic-containing container 11 which serves as a reservoir from which an aqueous liquid cosmetic containing the plant-derived pigment of the present invention (hereinafter simply referred to as "liquid cosmetic") is dispensed by a liquid-pressing mechanism 10. The cosmetic-containing container 11 serves as a reservoir from which an aqueous liquid cosmetic containing the plant-derived pigment of the present invention (hereinafter simply referred to as "liquid cosmetic") is dispensed by a liquid-pressing mechanism 10. The cosmetic-containing container 11 is provided in front of the liquid-pressing mechanism 10. Liquid pressing mechanism 10 is configured to supply the liquid cosmetic in container (storage section) 11 to application section 30 by rotating delivery member 13 arranged at the rear end of barrel body 12 in the circumferential direction relative to barrel body 12.

[0043] The liquid pushing mechanism 10 of this applicator comprises a delivery member 13 rotatably fitted to the rear end of a barrel body 12, a drive cylinder 15 that transmits the force of the rotation of the delivery member 13 by the user to a threaded rod 14, a threaded body 16 fixed to the barrel body 12 and into which the threaded rod 14 is screwed, the threaded rod 14 having a piston body 17 rotatably engaged at its tip, and a piston body 17 that slides within the storage section 11 of the barrel body 12. 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 causes the threaded rod 14 and piston body 17 to advance via the female thread of the nut-shaped threaded body 16, thereby delivering the liquid cosmetic from within the storage section 11 to the application section 30.

[0044] 1, the feeding member 13 has a cylindrical operating part that is closed by fitting a crown 13a at its rear end and is rotatably fitted into and exposed at the rear end of the barrel body 12. A drive cylinder 15 is fitted into the feeding member 13 and fixed in the rotational direction, and a screw body 16 is attached within the drive cylinder 15 so as to be fixed in the rotational direction and relatively movable in the axial direction. 13b is a spring member that urges the feeding member 13, which serves as a rotating body, rearward. In this applicator, seal portion 18, joint member 19, front barrel 20, and applicator portion 30 are attached by fitting to front end portion 12a of barrel body 12. Liquid cosmetic material is stored in reservoir 11 of barrel body 12, and the liquid cosmetic material dispensed from reservoir 11 passes through a flow path within joint member 19 and is discharged into applicator portion 30, making it possible to apply the liquid cosmetic material. In addition, cap 40 is formed so as to be able to be attached to front barrel 20 so as to cover applicator portion 30 and front barrel 20 after use.

[0045] 1, reference numeral 21 denotes a stirring ball that stirs the liquid cosmetic in the storage portion 11 by reciprocating motion, and 22 denotes a sealing ball. Reference numeral 41 denotes an inner cap in the cap 40, and 42 denotes a spring for biasing the inner cap rearward. Note that the stirring ball 21 may be omitted. Furthermore, reference numeral 23 in the figure denotes a stopper having a ring-shaped portion attached between the rear end of front barrel 20 and the front surface of the stepped portion of front end 12a of barrel body 12, in order to position seal portion 18, joint member 19, front barrel 20, and applicator portion 30 in a position that closes the flow path of the liquid cosmetic material heading toward applicator portion 30 when not in use. A knob is integrally formed on the opposite side to the separated portion, and by pulling the knob, the ring-shaped portion expands in diameter from the separated portion, allowing it to be removed from between the rear end of front barrel 20 and front end portion 12a of barrel body 12.

[0046] As shown in Figure 1, when not in use, the seal ball 22 fits into the inner diameter part of the seal part 18, which serves as the seal ball receiver, to form a seal so that the liquid cosmetic does not flow into the applicator part 30. On the other hand, when in use, the user pulls the stopper 23 out of the barrel body 12 and pushes the front barrel 20 towards the rear end, causing the rear end narrow diameter part of the joint member 19 to abut against the seal ball 22, which is removed from the inner diameter part of the seal part 18 and enters the reservoir part 11, and the liquid cosmetic in the reservoir part 11 flows from the inner diameter part of the joint member 19 into the liquid flow path of the applicator part 30 and is supplied to the applicator part 30 from its inside, making it possible to apply the liquid cosmetic to the target part.

[0047] As shown in Figure 2, the cosmetic-built-in applicator type liquid cosmetic applicator has a barrel 110 with cosmetic impregnated into cotton 126 and built in, an applicator section 114 provided at barrel tip 110a for applying the cosmetic to an object, and a retaining member 116 covering the outer circumference of applicator section 114 on the barrel 110 side (base side) leaving only tip 114a of applicator section 114, and is a cosmetic-built-in applicator structured to supply the cosmetic inside barrel 110 to applicator section 114, and has a cap 112 configured to be easily attached and detached to barrel tip 110a for covering applicator section 114 and retaining member 116.

[0048] The tip 114a of the application part 114 is sharpened. The application part 114 is in the shape of a brush made of bundled fibers. Specifically, the application part 114 is made by aligning (sharpening) a plurality of resin fiber bundles (specific example: fiber material is polybutylene terephthalate (PBT), fiber thickness is 0.1 to 0.15 mm) so that the tip 114a tapers and forming a brush shape, and the rear end is integrated by heat welding and expanded in diameter into a flange shape. The application part 114 may also be made of solidified fibers. In addition, in the cosmetic-containing applicator of this embodiment, as shown in FIG. 2, an ink absorbing material filling 126 is contained within the barrel 110 from the center to the tip 110a, and the filling 126 is sealed and supported by a tail plug 128 fitted into the rear end of the barrel 110.

[0049] An ink relay core 130 made of open cell foam is disposed in the opening of the barrel tip 110a. The tail end of this relay core 130 fits into the tip of the inner cotton 126, while the tip fits into the tail end of the application part 114, guiding the ink absorbed in the inner cotton 126 to the application part 114. The relay core 130 is mounted in the barrel tip 110a, which is stepped and has a slightly smaller diameter than the main body (the diameter is smaller by the thickness of the cap 112), via a roughly cylindrical support 132, and the cylindrical rear end of the holding member 116 fits between the outer periphery of the support 132 and the inner periphery of the barrel tip 110a. The tip of holding member 116 is located further forward than barrel tip 110a and covers outer peripheral surface 114b of application part 114, and holding member outer peripheral surface 116a tapers into a conical side shape or a tapered shape.

[0050] As shown in Figure 3(a), the collector-type liquid cosmetic applicator has a front barrel 210 and a barrel body 214 into which barrel main body 212 at the rear of front barrel 210 fits, and as shown in Figure 3(b), a comb-like collector 216 having multiple leaf portions arranged in the axial direction is disposed at the front of barrel 214, and the application liquid is stored in storage space 214a at the rear of barrel 214.

[0051] The shaft body 212 at the rear of the shaft 214 is formed in a pipe shape with an interior that is connected and open at the front and rear. A tail plug 214b is fitted to the rear of the shaft body 212, which is also the rear of the shaft body, to close the rear of the shaft body 212. The front end of the tail plug 214b and the rear end of the collector 216 are The space within shaft body 214 (which is also the space within shaft main body 212) sandwiched between these serves as accommodation space 214a. In the accommodation space 214a, no impregnated body such as padding is placed, but the coating liquid is directly accommodated, and an agitator (ball or the like) 214c for agitating the coating liquid is also placed.

[0052] Lead barrel 210, barrel body 212, collector 216, cap, etc. may be resin molded products. Stirrer 214c may be a ball material made of metal, resin, or the like. The collector 216 is a structure that is covered and held by the front barrel 210 and the barrel body 212 . Then, writing part 218 consisting of a tapered brush body protrudes from the opening at the front end of tip barrel 210, and a cap covering writing part 218 is removably fitted onto tip barrel 210. Tip barrel 210 is tapered with an approximately conical side shape, and it is desirable to form the tip angle of tip barrel 210 at approximately the same angle as the tip angle of writing part 218.

[0053] Writing part 218 is a tapered brush body made of resin fibers, natural fiber bundles, and a resin porous body. Writing part 218 has a flange-like expanded diameter at the rear end, and this expanded portion engages with front barrel 210 to prevent it from coming off. Note that while a brush body is preferable for writing part 218, various applicator bodies for applying application liquid can also be used. A cup-shaped inner cap that covers the writing part 218 to increase its airtightness is disposed within the cap so as to be movable back and forth, and a spring is disposed to bias this inner cap backward.

[0054] Inside the hollow, tapered tip barrel 210, a bellows-shaped collector 216 is disposed behind the writing portion 218, and a center core 222 is disposed penetrating through the hollow portion of this collector 216. Center core 222, which serves as a relay core, can be composed of a capillary material such as a resin fiber bundle, a natural fiber bundle, or a porous resin body. In the case of the central core 222, the central core 222 does not protrude from the rear end of the collector 216 into the accommodation space 214a of the shaft body 214 (see FIG. 3(b)). The rear end face of the central core 222 is almost aligned with the rear end face of the collector 216. By aligning the central core 222, the rear end of the central core 222 does not protrude into the accommodation space 214a, and the volume of the accommodation space 214a can be secured. In addition, since the rear end of the central core 222 does not protrude into the accommodation space 214a, when the stirring body 214c is provided in the accommodation space 214a, even if the stirring body 214c moves within the accommodation space 214a, it does not collide with the central core 222 and does not deform the central core 222, so that the coating liquid can be sufficiently penetrated. The liquid cosmetic applicator that is loaded with the aqueous liquid cosmetic of the present invention is preferably a direct-flow type liquid cosmetic applicator, and more preferably a collector type. If the porosity of the intermediate core used is 30% or more, clogging of the coloring material is unlikely to occur, and the discharge performance is excellent. In addition to the direct-flow type liquid cosmetic applicator, padded types, direct-flow storage types (piston extrusion, with stirring ball), and direct-flow storage types (valve types) can be used, and a "brush tip", "fiber bundle core", or "spatula" can be used in the application part.

[0055] The liquid cosmetic applicator of the above form has been described as being a liquid cosmetic applicator for liquid eyeliner or liquid eyeshadow, which is a cosmetic composition that is an aqueous liquid cosmetic containing the plant-derived pigment of the present invention, but is not limited to this and can also be used as an eyebrow applicator for drawing lines on eyebrows, a mascara applicator, or for drawing lines on the skin. Furthermore, as the liquid pressing mechanism of the liquid cosmetic applicator of the above-described form, a rotary-type dispensing applicator as shown in FIG. 1 was used, but a knock-type dispensing liquid cosmetic applicator may also be used.

[0056] The aqueous liquid cosmetic of the present invention thus constituted contains at least 1 to 30% by mass of a plant-derived pigment having a G / D ratio of 0.5 to 10, a film-forming agent, a dispersant, and preferably a water-based solvent, and by suitably combining these various raw materials, it is possible to obtain an aqueous liquid cosmetic that, despite the use of a plant-derived pigment, has excellent color development and dispersion stability, and can be discharged satisfactorily even when mounted on a padded liquid cosmetic applicator, as well as a direct-dispensing type applicator for makeup cosmetics such as eyeliner, eye shadow, eyebrow liner for drawing eyebrows, and mascara, and further, can draw highly colored lines and has excellent durability, such as water-resistant adhesion. Therefore, even if an aqueous liquid cosmetic containing the plant-derived pigment of the present invention is stored for a long period of time in a container such as a liquid cosmetic applicator to be used, unlike iron oxide pigments, which tend to aggregate and settle, the use of a plant-derived pigment such as charcoal maintains its dispersibility and stability over time within the container. For example, even in an eyeliner applicator container that uses a brush 30 as an applicator, as shown in Figure 1 above, color separation is unlikely to occur at the tip of the brush, and an aqueous liquid cosmetic suitable for liquid cosmetics such as eyeliner liquid can be obtained, which has vivid color development, hiding power, and excellent visibility such as a matte finish. In addition, in the case of the applicator containers as shown in Figures 1 and 3, although they are each equipped with a stirring body, since plant-derived pigments are used, there is no need for the user to stir, and there is no color change when applied. EXAMPLES

[0057] EXAMPLES Next, the present invention will be described in more detail with reference to examples and comparative examples. However, the present invention is not limited to the following examples.

[0058] [Examples 1 to 15 and Comparative Examples 1 to 3] Cosmetic compositions (formulation unit: mass %, total amount 100 mass %) serving as aqueous liquid cosmetics having the formulations shown in Table 1 below were prepared by the method described below, and the viscosity value of each liquid cosmetic was measured using the measurement method described above, and the pH, color development, drawn line durability A (water-resistant adhesion), drawn line durability B (sebum resistance), product stability over time, and liquid cosmetic ejection properties were evaluated using the evaluation methods described below. The aqueous liquid cosmetics of Examples 1 to 13 were evaluated for color development, line durability A (water-resistant adhesion), line durability B (sebum resistance), product stability over time, and liquid cosmetic ejection properties using the direct liquid (collector) type liquid cosmetic applicator (eyeliner) of Figure 3, and the aqueous liquid cosmetics of Examples 14 and 15 were evaluated for color development, line durability A (water-resistant adhesion), line durability B (sebum resistance), product stability over time, and liquid cosmetic ejection properties in the same manner as in Examples 1 to 13 using the propelling type liquid cosmetic applicator (eyeliner) of Figure 1. The results are shown in Table 1 below.

[0059] (Method for preparing water-based liquid cosmetic preparation) A cosmetic composition serving as an aqueous liquid cosmetic having the formulation shown in Table 1 below was prepared according to a conventional procedure, that is, by adding a plant-derived pigment (coloring material) and a dispersant to ion-exchanged water (vehicle), dispersing the mixture using a Labostar (manufactured by Ashizawa Finetech Co., Ltd.) as a disperser, and then adding and mixing the other ingredients.

[0060] (Method of measuring viscosity) Each water-based liquid cosmetic composition obtained by the above method was measured at 25°C using a Toki Sangyo Co., Ltd. ELD type viscometer, standard rotor: shear rate: 192 [s -1 ](50 rpm) or standard rotor: shear rate: 38.3 [s -1 The viscosity was measured by rpm (10). (pH measurement method) The pH of each of the aqueous liquid cosmetics obtained by the above method was measured at 25° C. using a glass electrode pH meter.

[0061] (Method of evaluating color development) The obtained aqueous liquid cosmetic composition was filled into a collector-type eyeliner as shown in FIG. 3 and applied to the skin, and the color development was evaluated according to the following evaluation criteria. Evaluation criteria: A: The color is very vivid. B: The skin is slightly visible, but the color is good. C: The color is not very vibrant and the skin shows through. D: The color is poor and the skin shows through.

[0062] [Evaluation method for line durability A (water-resistant adhesion)] The obtained aqueous liquid cosmetic was filled into a collector-type eyeliner as shown in FIG. 3 and applied to the forearm, followed by running water and rubbing the applied surface with the pads of the fingers, and the water-resistant adhesion was evaluated according to the following evaluation criteria. A: No change in the drawn line when rubbed with the pad of a finger. B: There is a slight change in the drawn line due to rubbing with the pad of a finger. C: Changes in the drawn lines are observed due to rubbing with the pad of a finger. D: The lines are erased by rubbing with the pad of a finger.

[0063] [Evaluation method for line durability B (resistance to sebum adhesion)] The obtained aqueous liquid cosmetic composition was filled into a collector-type eyeliner as shown in FIG. 3 and applied to the forearm. After that, artificial sebum was applied and the skin was rubbed with the pad of a finger, and the resistance to sebum adhesion was evaluated according to the following evaluation criteria. A: No change in the drawn line when rubbed with the pad of a finger. B: There is a slight change in the drawn line due to rubbing with the pad of a finger. C: Changes in the drawn lines are observed due to rubbing with the pad of a finger. D: The lines are erased by rubbing with the pad of a finger.

[0064] (Method for evaluating product stability over time) The obtained water-based liquid cosmetic composition was filled into a collector-type eyeliner as shown in FIG. 3, and the appearance after one month at 50° C. was evaluated sensorily according to the following evaluation criteria. Evaluation criteria: A: No pigment settling was observed. B: Sedimentation of the pigment was observed, but the sediment was quickly loosened. C: Sedimentation of the pigment was observed, and the sediment was difficult to loosen. D: Sedimentation of the pigment was observed, and the sediment was hard and did not break apart.

[0065] (Method for evaluating the ejection properties of liquid cosmetics) The obtained water-based liquid cosmetic was filled into a collector-type eyeliner as shown in FIG. 3 and applied to the skin, and the dischargeability of the liquid cosmetic was evaluated according to the following evaluation criteria. Evaluation criteria: A: No problems with flow rate, fresh, and good application B: Although there is a decrease in flow rate, there are no problems with application and the application area is not chipped. C: There is a decrease in flow rate and slight chipping in the application area. D: There is a significant decrease in flow rate, the product is dry, and the applied area is not visible.

[0066] [Table 1]

[0067] *1 to *9 in Table 1 above are as follows. *1:G / D:0.9, BET specific surface area: 75m 2 / g, average particle size: 5.0μm *2:G / D:1.0, BET specific surface area: 79m 2 / g, average particle size: 6.5μm *3:G / D:1.0, BET specific surface area: 141m 2 / g, average particle size: 4.0μm *4: Average particle size: 0.1μm *5: Average particle size: 0.3μm *6: Average particle size: 0.3μm *7: Average particle size: 0.2μm *8: Average particle size: 0.2μm *9: Average particle size: 0.1μm

[0068] As is clear from the results in Table 1 above, the aqueous liquid cosmetics prepared using the collector-type liquid cosmetic applicators of Examples 1 to 13, which fall within the scope of the present invention, and the aqueous liquid cosmetics prepared using the propelling-type liquid cosmetic applicators of Examples 14 and 15, were found to be aqueous liquid cosmetics that were superior in color development, line durability (water-resistant adhesion, sebum resistance), product stability over time, and liquid cosmetic ejection properties, compared to Comparative Examples 1 to 3, which fall outside the scope of the present invention. Furthermore, for the above Examples 14 and 15, the viscosity was adjusted instead of the dispensing type, and the color development, line durability (water-resistant adhesion and sebum-resistant), product stability over time, and liquid cosmetic ejection properties were evaluated using a collector-type liquid cosmetic applicator as shown in Figure 3. It was confirmed that the same evaluation results were obtained as when the dispensing type was used. Furthermore, for the above Examples 1 to 13, the viscosity was adjusted and a propelling-type liquid cosmetic applicator as shown in Figure 1 was used instead of the collector type to evaluate color development, line durability (water-resistant adhesion and sebum-resistant), product stability over time, and liquid cosmetic ejection properties. It was confirmed that the same evaluation results were obtained as when the collector type was used. [Industrial Applicability]

[0069] Even when using plant-derived pigments that are excellent in terms of reducing the environmental load and being safe, the pigments have excellent color development and dispersion stability, and can be discharged satisfactorily even when mounted on a padded liquid cosmetic applicator as well as a direct-liquid type applicator for makeup cosmetics such as eyeliner, eyeshadow, eyebrow line-drawing applicator, and mascara, and further can draw highly colored drawn lines, resulting in an aqueous liquid cosmetic that has excellent line durability. [Explanation of symbols]

[0070] 10 Liquid pressing mechanism 12 Axis body 13. Feeding member 17 Piston body 18 Seal part 19 Joint members 20 front axis 30 Application part (brush)

Claims

1. A water-based liquid cosmetic comprising at least a plant-derived pigment, a film-forming agent, a dispersant, and water, the plant-derived pigment being contained in an amount of 1 to 30% by mass relative to the total amount of the water-based liquid cosmetic, and the plant-derived pigment exhibiting a D band (1350 cm) in a Raman spectrum. －１ ) and G band (1582 cm －１ ) has an intensity ratio G / D of 0.5 to 10.

2. The plant-derived pigment has a BET specific surface area of ​​20 to 800 m ２ 2. The aqueous liquid cosmetic according to claim 1, wherein the composition is a water-based liquid cosmetic composition having a molecular weight of 1000 to 2000 g.

3. 3. The aqueous liquid cosmetic preparation according to claim 1, further comprising a pigment selected from the following Group A: Group A: Yellow iron oxide, red iron oxide, black iron oxide, titanium dioxide, Red 226, carmine, ferric malt, gunjo, manganese violet, chromium oxide, lake pigment

4. 3. The aqueous liquid cosmetic preparation according to claim 1, wherein the film-forming agent is a resin emulsion.

5. A liquid cosmetic applicator comprising the aqueous liquid cosmetic according to claim 1 or 2.

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