JP5946422B2 - Aqueous cleansing cosmetics - Google Patents

Description

  The present invention relates to an aqueous cleansing cosmetic.

  In recent years, cleansing cosmetics are mainly water-based cleansing cosmetics that use a nonionic surfactant as a component for removing oil and dirt such as make-up and that can be easily wiped off or washed away. The characteristics of these water-based cleansing cosmetics are that they can be easily cleansed and also have excellent usability when compared to oil-based cleansing cosmetics.

  Specifically, for example, a hypoallergenic cleansing composition containing a hydrophilic nonionic surfactant and water and not containing an oily substance (see, for example, Patent Document 2), a nonionic surfactant and acrylic acid methacrylic acid Cleansing cosmetics containing an alkyl copolymer and having an oil component content of 2% by mass or less (see, for example, Patent Document 3), two types of nonionic surfactants having an HLB of less than 12 and 12 or more A cleansing cosmetic (for example, see Patent Document 4) containing an alkyl methacrylic acid alkyl copolymer and a polyhydric alcohol has been proposed.

  However, in the conventional trial, although cleansing can be performed easily and easily, there is a problem that it is difficult to obtain a sufficient cleansing effect (oil stain removing effect) as compared with oil-based cleansing cosmetics. Therefore, from the viewpoint of enhancing the cleansing effect, it is conceivable that the nonionic surfactant, which is the main oil / fouling stain removing component of the aqueous cleansing cosmetic, is highly formulated. As a result, the cleansing effect is enhanced, but there is a problem that unfavorable irritation occurs to the eye mucous membrane and skin during cleansing. In addition, there is a problem that separation, which is a phenomenon peculiar to an aqueous dosage form containing an active agent, easily occurs during storage, and the stability of the preparation deteriorates. On the other hand, when the main purpose is to reduce stimulation during cleansing, there arises a problem that a sufficient cleansing effect cannot be obtained.

  As described above, the conventional aqueous cleansing cosmetics cannot sufficiently solve both of the problems of providing an excellent cleansing effect and the conflicting problems of reducing irritation.

JP-A-4-308518 JP-A-8-301725 JP-A-9-87139 JP 2002-284672 A

  The present invention has been made in view of the above prior art, and is not only excellent in the cleansing effect for removing oily and dirt such as make-up as compared with conventional aqueous cleansing cosmetics, but also for ocular mucosa and skin. An object is to provide an aqueous cleansing cosmetic with reduced irritation.

That is, the present invention
[1] An aqueous cleansing cosmetic comprising the following component (A), component (B), component (C) and component (D), wherein the content of the component (A) is 50 to 99% by mass;
Component (A): Water Component (B): Polyoxyethylene (capryl / capric acid) glyceryl having an average addition mole number of ethylene oxide of 6 to 8 Component (C): An average addition mole number of ethylene oxide of 10 to 30 At least one selected from polyoxyethylene dibranched fatty acid glyceryl and polyoxyethylene monobranched fatty acid ester having an average addition mole number of ethylene oxide of 3 to 10 Component (D): diethylene glycol monoethyl ether, polyoxyethylene (8) poly At least one selected from oxypropylene (5) polyoxybutylene (3) glyceryl ether, polyoxypropylene (14) diglyceryl ether and bisethoxydiglycol succinate [2] The component (C) is an average of ethylene oxide Diisostearic acid polio with 20 added moles Shi aqueous cleansing cosmetic composition according to the average addition mole number of ethylene glyceryl and / or ethylene oxide is a polyoxyethylene isostearate 8 (1),
[3] The content of the component (B) is 0.5 to 5% by mass, the content of the component (C) is 0.5 to 5% by mass, and the components (B) and (C) The aqueous cleansing cosmetic according to [1] or [2], wherein the mass content ratio (B: C) is in the range of 5: 1 to 1: 2.
[4] The aqueous cleansing cosmetic according to any one of claims 1 to 3, further comprising the following component (E):
Ingredient (E): relating to buffer.

  The water-based cleansing cosmetic composition of the present invention, compared with conventional water-based cleansing cosmetic compositions, exhibits a remarkably superior cleansing effect (oil-fouling stain removing effect), but does not stimulate irritation peculiar to nonionic surfactants. There exists an effect that it can reduce.

  In addition, the aqueous cleansing cosmetic of the present invention exhibits an effect that it has remarkably excellent formulation stability without causing separation even though it contains a nonionic surfactant.

  Although the water of a component (A) will not be specifically limited if it can be used as a cosmetics raw material, Usually, purified water is used. The content of the component (A) in the present invention is 50 to 99% by mass in the cosmetic, and preferably 60 to 97% by mass, from the viewpoint of being aqueous. The reason is that when the amount is less than 50% by mass, a sticky feeling is generated and the feeling of use is inferior, and when it exceeds 99% by mass, a sufficient cleansing effect cannot be obtained.

  Component (B) is a polyoxyethylene (6) (capryl / capric acid) glyceryl, polyoxyethylene (7) (capryl / capric acid) glyceryl, polyoxyethylene from the viewpoint of a cleansing effect and solubility in water. (8) Polyoxyethylene (capryl / capric acid) glyceryl having an average added mole number of ethylene oxide of 6 to 8, such as (capryl / capric acid) glyceryl, is used. These components (B) may be used individually by 1 type, and may be used in combination of 2 or more types as appropriate.

  In addition, a commercial item can be used for a component (B) as it is. Examples of commercially available products of polyoxyethylene (6) (capryl / capric acid) glyceryl include Hiber Oil CC-6 (trade name, manufactured by Koyo Fine Chemical Co., Ltd.), Softigen 767 (trade name, manufactured by Sasol Corporation), and the like. It is done. Examples of commercially available products of polyoxyethylene (7) (capryl / capric acid) glyceryl include CETIOL HE810 (trade name, manufactured by Cognis Japan). Examples of commercially available products of polyoxyethylene (8) (capryl / capric acid) glyceryl include M Fine Oil MCG-8M (trade name, manufactured by Miyoshi Oil & Fats Co., Ltd.), L.P. A. S (trade name, manufactured by Gatefosse) and the like.

  Although content of a component (B) is not specifically limited, Usually, 0.1 mass% or more is preferable in cosmetics from a viewpoint of exhibiting the outstanding cleansing effect, More preferably, it is 0.5 mass% or more. . Moreover, from a viewpoint of reducing irritation | stimulation, 7 mass% or less is preferable, More preferably, it is 5 mass% or less. From these viewpoints, the content of the component (B) is preferably 0.1 to 7% by mass, more preferably 0.5 to 5% by mass.

  As the component (C), polyoxyethylene dibranched fatty acid glyceryl having an average added mole number of ethylene oxide of 10 to 30 is used from the viewpoint of a cleansing effect and solubility in water. In the present specification, the “polyoxyethylene dibranched fatty acid glyceryl having an average added mole number of ethylene oxide of 10 to 30” may be referred to as “component (C1)”.

  Specific components (C1) include, for example, polyisoethylene glyceryl diisostearate (PEG-10 glyceryl diisostearate) having an average addition mole number of ethylene oxide of 10 and diisostearate having an average addition mole number of ethylene oxide of 20. Examples include polyoxyethylene glyceryl acid (PEG-20 glyceryl diisostearate) and polyoxyethylene glyceryl diisostearate (PEG-30 glyceryl diisostearate) having an average addition mole number of ethylene oxide of 30. These components (C1) may be used individually by 1 type, and may be used in combination of 2 or more types as appropriate.

  Among these components (C1), polyoxyethylene glyceryl diisostearate (PEG-20 glyceryl diisostearate) having an average added mole number of ethylene oxide of 20 is used from the viewpoint of further enhancing the cleansing effect and water solubility. It is preferable.

  In addition, a commercial item can be used for a component (C1) as it is. Examples of commercially available PEG-10 glyceryl diisostearate include EMALEX GWIS-210EX (trade name, manufactured by Nippon Emulsion Co., Ltd.). Examples of commercially available PEG-20 glyceryl diisostearate include EMALEX GWIS-220EX (trade name, manufactured by Nippon Emulsion Co., Ltd.). Examples of commercially available PEG-30 glyceryl diisostearate include EMALEX GWIS-230EX (trade name, manufactured by Nippon Emulsion Co., Ltd.).

  Moreover, the component (C) can also use the polyoxyethylene monobranched fatty acid ester whose average added mole number of ethylene oxide is 3-10 from a cleansing effect and a water soluble viewpoint. In the present specification, the “polyoxyethylene mono-branched fatty acid ester having an average added mole number of ethylene oxide of 3 to 10” may be referred to as “component (C2)”.

  Specific examples of the component (C2) include polyoxyethylene isostearic acid (PEG-3 isostearate) having an average addition mole number of ethylene oxide of 3, and polyoxyethylene having an average addition mole number of ethylene oxide of 4. Isostearic acid (PEG-6 isostearate), polyoxyethylene isostearic acid (PEG-6 isostearate) with an average addition mole number of ethylene oxide, polyoxyethylene isostearic acid with an average addition mole number of ethylene oxide of 8 (Isostearic acid PEG-8), polyoxyethylene isostearic acid (PEG-10 isostearic acid) having an average addition mole number of ethylene oxide of 10 is mentioned. These components (C2) may be used individually by 1 type, and may be used in combination of 2 or more types as appropriate.

  Among these components (C2), from the viewpoint of further improving the cleansing effect and solubility in water, polyoxyethylene isostearic acid (PEG-8 isostearate) having an average added mole number of ethylene oxide of 8 is used. preferable.

  In addition, a commercial item can be used for a component (C2) as it is. Examples of commercially available products of PEG-3 isostearate include EMALEX PEIS-3EX (trade name, manufactured by Nippon Emulsion Co., Ltd.). Examples of commercially available products of PEG-4 isostearate include Nonion IS-2 (trade name, manufactured by NOF Corporation). Examples of commercially available products of PEG-6 isostearate include EMALEX PEIS-6EX (trade name, manufactured by Nippon Emulsion Co., Ltd.). Examples of commercially available products of PEG-8 isostearate include EMALEX PEIS-8EX (trade name, manufactured by Nippon Emulsion Co., Ltd.), Nonion IS-4 (trade name, manufactured by NOF Corporation), and the like. Examples of commercially available products of PEG-10 isostearate include EMALEX PEIS-10EX (trade name, manufactured by Nippon Emulsion Co., Ltd.).

  In the present invention, the component (C) is at least one selected from the components (C1) and (C2) described above. Although content of a component (C) is not specifically limited, Usually, 0.1 mass% or more is preferable in cosmetics from a viewpoint of exhibiting the outstanding cleansing effect, More preferably, it is 0.5 mass% or more. . Moreover, from a viewpoint of reducing irritation | stimulation, 7 mass% or less is preferable, More preferably, it is 5 mass% or less. From these viewpoints, the content of the component (C) is preferably 0.1 to 7% by mass, more preferably 0.5 to 5% by mass.

  In the present invention, by using the above-described component (B) and component (C) in combination, it is possible to exhibit a remarkably excellent cleansing effect as compared with conventional aqueous cleansing cosmetics.

  In order to sufficiently exhibit such an excellent cleansing effect of the present invention, the above-described component (B) and component (C) are 10: 1 to 1 as a mass content ratio (B: C). : 3, preferably 5: 1 to 1: 2, more preferably 2: 1 to 1: 1.

  Component (D) is diethylene glycol monoethyl ether, polyoxyethylene (8) polyoxypropylene (5) polyoxybutylene (3) glyceryl ether (PEG / PPG / polybutylene glycol-8 / 5/3 glycerin), polyoxy At least one selected from propylene (14) diglyceryl ether (PPG-14 diglyceryl) and bisethoxydiglycol succinate is used. In addition, in this specification, the numerical description in a parenthesis represents the average addition mole number of ethylene oxide, the average addition mole number of propylene oxide, and the average addition mole number of butylene oxide.

  By adding at least one selected from the above component (D) to the aqueous cleansing cosmetic, not only can the cleansing effect be further improved, but also the irritation unique to the nonionic surfactant can be reduced. Become. Surprisingly, the aqueous cleansing cosmetic containing the component (D) of the present invention is less likely to cause separation, which is a phenomenon peculiar to an aqueous dosage form containing an active agent during storage, and has excellent formulation stability. It will be able to be demonstrated.

  In addition, the component (D) can use a commercial item as it is. Examples of commercially available diethylene glycol monoethyl ether include Seafosol DG-S (trade name, manufactured by Nippon Shokubai Co., Ltd.). Examples of commercially available products of polyoxyethylene (8) polyoxypropylene (5) polyoxybutylene (3) glyceryl ether include Willbride S-753 (trade name, manufactured by NOF Corporation). Examples of commercially available products of polyoxypropylene (14) diglyceryl ether include SY-DP14T (trade name, manufactured by Sakamoto Pharmaceutical Co., Ltd.). Examples of commercial products of bisethoxydiglycol succinate include High Aquastar DCS (trade name, manufactured by Higher Alcohol Industry Co., Ltd.).

  Although content of a component (D) is not specifically limited, Usually, 0.5 mass% or more is preferable in cosmetics from a viewpoint which improves a cleansing effect, and also provides formulation stability, More preferably Is 1% by mass or more. Moreover, from a viewpoint of usability, 40 mass% or less is preferable, More preferably, it is 30 mass% or less. From these viewpoints, the content of the component (D) is preferably 0.5 to 40% by mass, and more preferably 1 to 30% by mass.

  Moreover, the aqueous cleansing cosmetic composition of the present invention can contain a buffer solution as the component (E) from the viewpoint of enhancing the formulation stability. Specific examples of the component (E) include hydrochloric acid-potassium chloride buffer (pH 1.0 to 2.2) prepared from hydrochloric acid and potassium chloride; glycine-hydrochloric acid buffer (pH 2) prepared from glycine and hydrochloric acid. .2 to 3.6); citrate buffer prepared from citric acid and sodium citrate (pH 3.0 to 6.2); acetate buffer prepared from acetic acid and sodium acetate (pH 3.6 to 5. 6); Citric acid-phosphate buffer (pH 2.6-7.0) prepared from citric acid and disodium hydrogen phosphate; phosphate buffer prepared from sodium dihydrogen phosphate and disodium hydrogen phosphate Solution (pH 5.8 to 8.0); Tris-hydrochloric acid buffer solution (pH 7.2 to 9.0) prepared from tris (hydroxymethyl) aminomethane and hydrochloric acid; glucose prepared from glycine and sodium hydroxide Syn-sodium hydroxide buffer (pH 8.6 to 10.6); a readily soluble salt such as carbonate-bicarbonate buffer (pH 9.2 to 10.6) prepared from sodium carbonate and sodium bicarbonate. An aqueous solution may be mentioned.

  In the present invention, among the components (E) described above, from the viewpoint of further improving the formulation stability, a citrate buffer solution, an acetate buffer solution, a citrate-phosphate buffer solution, a phosphate buffer solution, a Tris-HCl buffer solution It is preferable to use citrate buffer, citrate-phosphate buffer, and phosphate buffer.

  Although content of a component (E) is not specifically limited, Usually, 0.01 mass% or more is preferable in cosmetics from a viewpoint of improving formulation stability, More preferably, it is 0.05 mass% or more. Moreover, 1 mass% or less is preferable from a viewpoint of formulation stability and a cleansing effect, More preferably, it is 0.5 mass% or less. From these viewpoints, the content of the component (E) is preferably 0.01 to 1% by mass, more preferably 0.05 to 0.5% by mass.

  Moreover, the aqueous cleansing cosmetic composition of the present invention may contain a polyhydric alcohol as the component (F) from the viewpoint of enhancing the feeling of use. Examples of the component (F) used include glycols and glycerins. Specific glycols include, for example, ethylene glycol, diethylene glycol, triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol, isoprene glycol, 1,3-butylene glycol, 1,2-butanediol, 1,2- Examples include pentanediol, 1,2-hexanediol, 1,2-octanediol, and 1,2-decanediol. Specific examples of glycerin include glycerin, concentrated glycerin, diglycerin, and polyglycerin. These components (F) may be used individually by 1 type, and may be used in combination of 2 or more types as appropriate.

  Although content of a component (F) is not specifically limited, Usually, 0.01 mass% or more is preferable in cosmetics from a viewpoint of improving a usability | use_condition, More preferably, it is 0.05 mass% or more. Moreover, from a viewpoint of suppressing a sticky feeling, 30 mass% or less is preferable, More preferably, it is 20 mass% or less. From these viewpoints, the content of the component (F) is preferably 0.01 to 30% by mass, and more preferably 0.05 to 20% by mass.

  Furthermore, the aqueous cleansing cosmetic composition of the present invention may contain a styrene compound as the component (G) from the viewpoint of suppressing stickiness and improving the feeling of use. Specific components (G) include, for example, vinyl acetate / styrene copolymer, vinyl pyrrolidone / styrene copolymer, alkyl acrylate / styrene copolymer, alkyl acrylate / acrylonitrile / styrene copolymer, acrylic acid Examples thereof include amide / styrene copolymers. In the present invention, an emulsion in which the above-described copolymer is dispersed in an aqueous medium may be used. These components (G) may be used individually by 1 type, and may be used in combination of 2 or more types as appropriate.

  Suitable components (G) include vinylpyrrolidone / styrene copolymer, alkyl acrylate / styrene copolymer, acrylic amide / styrene copolymer from the viewpoint of reducing the stickiness during cleansing and enhancing the feeling of use. It is preferable to use it.

  In addition, the component (G) can use a commercial item as it is. Examples of the commercially available vinylpyrrolidone / styrene copolymer include Antara 430 (trade name, manufactured by ISP Corporation). Examples of commercially available alkyl acrylate / styrene copolymers include Accusol OP301 (trade name, manufactured by Rohm and Haas). Examples of commercially available products of acrylic acid amide / styrene copolymer include Accusol OP303P (trade name, manufactured by Rohm and Haas), Yodzole GH52 (trade name, manufactured by NSC Japan), and the like.

  The content of the component (G) is preferably 0.01 to 3% by mass, more preferably 0.05 to 2% by mass in the cosmetic from the viewpoint of suppressing the sticky feeling and improving the feeling of use.

  Moreover, it is preferable that the aqueous cleansing cosmetic of the present invention does not substantially contain ethanol. Thereby, it becomes possible to reduce irritation | stimulation more even if it does not wash away with lukewarm water after a treatment, and a post-wash. In the present invention, “substantially does not contain ethanol” means “does not contain ethanol separately”, and does not exclude a trace amount of ethanol contained in each compounding component. .

  In the aqueous cleansing cosmetic of the present invention, within the range not impairing the effects of the present invention, in addition to the above-described components, components other than those normally used in cosmetics, for example, components (B) and components (C) other than Surfactants: UV absorbers, powders, antioxidants, preservatives, fragrances, colorants, chelating agents, cooling agents, thickeners, plant extracts, vitamins, neutralizers, amino acids and other additives Can be appropriately blended according to the use and purpose.

  The aqueous cleansing cosmetic composition of the present invention is suitably used as a make-up remover and a face massage agent because it exhibits a remarkably excellent effect in removing oils and fats by facial sebum and makeup.

  In addition, as a method of using the aqueous cleansing cosmetic composition of the present invention, from the viewpoint of suppressing the feeling of tightness of the skin after use, and from the viewpoint of suppressing dry skin due to excessive degreasing, washing with lukewarm water after treatment and after It is preferable not to wash the face. More preferable usage examples include a method of impregnating a cotton or non-woven fabric with an aqueous cleansing cosmetic and performing treatment on the application site, or a method of wiping the aqueous cleansing cosmetic on the application site and then wiping with cotton or non-woven fabric. can do.

  EXAMPLES Hereinafter, although this invention is demonstrated further in detail based on an Example, this invention is not limited only to these Examples. The blending amount represents “% by mass” unless otherwise specified. Moreover, the numerical value in a parenthesis in a table | surface represents the average addition mole number of an alkylene oxide.

In the examples and comparative examples, the following components were used.
((B) component)
Polyoxyethylene (6) (capryl / capric acid) glyceryl (manufactured by Koyo Fine Chemical Co., Ltd. [Hiber Oil CC-6])
Polyoxyethylene (7) (capryl / capric acid) glyceryl (manufactured by Cognis Japan, [CETIOL HE810])
Polyoxyethylene (8) (capryl / capric acid) glyceryl (Miyoshi Oil & Fats Co., Ltd. [M Fine Oil MCG-8M])
((C) component)
PEG-10 glyceryl diisostearate (manufactured by Nippon Emulsion, [EMALEX GWIS-210EX])
PEG-20 glyceryl diisostearate (manufactured by Nippon Emulsion, [EMALEX GWIS-220EX])
PEG-8 isostearate (Nippon Emulsion, [EMALEX PEIS-8EX])
PEG-10 isostearic acid (manufactured by Nippon Emulsion, [EMALEX PEIS-10EX])
((D) component)
Diethylene glycol monoethyl ether (Nippon Shokubai Co., Ltd. [Seafosol DG-S])
PEG / PPG / polybutylene glycol-8 / 5/3 glycerin (manufactured by NOF Corporation, [Wilbride S-753])
PPG-14 diglyceryl (Sakamoto Pharmaceutical Co., Ltd., [SY-DP14T])
Bisethoxydiglycol succinate (manufactured by Higher Alcohol Industry, [High Aquastar DCS])
(Other ingredients)
Polyoxyethylene (7) polyoxypropylene (2) decyl ether (manufactured by Nippon Emulsion, [EMALEX DAPE-0207])
Polyoxyethylene (8) oleyl ether (manufactured by Nippon Emulsion, [EMALEX 508])
Polyoxyethylene (7) alkyl (12-14) ether (manufactured by Nikko Chemicals, [NIKKOL BT-7])
PEG-20 glyceryl monoisostearate (manufactured by Nippon Emulsion, [EMALEX GWIS-220])
PEG-20 glyceryl triisostearate (Nippon Emulsion, [EMALEX GWIS-320])
PPG-9 diglyceryl (Sakamoto Pharmaceutical Co., Ltd., [SY-DP9])
Cyclohexane-1,4-dicarboxylic acid bisethoxydiglycol (manufactured by Nippon Seika Co., Ltd., [Neosol-Aculio])
Vinylpyrrolidone / styrene copolymer (manufactured by ASP Co., Ltd. [ANTARA 430])
Dipropylene glycol (Asahi Glass Co., Ltd. [DPG-FC])

(Sample preparation 1)
According to the composition described in Tables 1 to 4, each of the aqueous cleansing cosmetics of Examples 1 to 30 and Comparative Examples 1 to 18 was prepared according to a conventional method and subjected to the following evaluation. The results are shown in Table 1
This is also shown in Table 4.
In addition, all evaluation was implemented on the constant conditions of constant temperature and humidity of 23 degreeC and 60% of humidity.

(Test Example 1: Measurement of makeup dirt (mascara) removal power)
10cm x 10cm bio skin plate white (trade name, manufactured by Beaulac Co., Ltd.), waterproof mascara (trade name: MAYBELLINE VOLUME EXPRESS turbo boost N WATERPROF jet black, manufactured by L'Oreal) 0.02g uniformly in 2cm x 2cm squares It was spread and dried overnight in a desiccator under reduced pressure.
Next, 1 g of each sample obtained in Examples and Comparative Examples was impregnated into 1.5 cm × 1.5 cm square cotton, and the sample-containing cotton was used using a friction tester (KES-SE, manufactured by Kato Tech Co., Ltd.). A 400 gf load was applied to the plate and pulled 4 cm so as to wipe off the white surface of the bioskin plate. The wiping operation was repeated 15 times.

In addition, evaluation evaluated the area value from which the mascara was removed in 2 cm x 2 cm square on white of a bio skin plate by image analysis, calculated the removal rate by the following formula, and evaluated it according to the following evaluation criteria.
Removal rate (%) = (Area value from which mascara is removed / application area value) × 100

<Evaluation criteria for makeup stain (mascara) removal power>
○ (Good): The removal rate is 70% or more. Δ (Insufficient): The removal rate is 30% or more and less than 70%.

(Test Example 2: Sensory evaluation)
20 female evaluation panels with eye makeup impregnated each sample obtained in the examples and comparative examples into cotton and used to actually wipe off the eye makeup, "stimulation" during cleansing treatment, In addition, the “removal effect” was subjected to sensory evaluation according to the following evaluation criteria.

  Note that “stimulation” refers to “feeling tingling” or “tingling sensation” that is felt by swallowing the eyes while cleansing the eyes.

<Evaluation criteria for stimulation>
◎ (very good): More than 16 out of 20 responded that there was no irritation ○ (good): 11-15 out of 20 responded that there was no irritation △ (insufficient): 6 out of 20 10 people answered that there was no irritation x (bad): 5 out of 20 people answered that there was no irritation

<Evaluation criteria for removal effect>
◎ (very good): More than 16 out of 20 responded that the removal effect was excellent ○ (good): 11-15 out of 20 responded that the removal effect was excellent △ (insufficient): out of 20 6-10 respondents said that the removal effect was excellent x (defect): 5 out of 20 respondents said that the removal effect was excellent

(Test Example 3: Evaluation of formulation stability)
Each sample obtained in Examples and Comparative Examples was sealed in a 50 mL transparent glass container and visually observed for the system state when stored in a constant temperature bath at 40 ° C. for 4 weeks, respectively. Evaluated according to.

<Evaluation criteria for formulation stability>
○ (good): no precipitates are observed and presents a uniform single layer system Δ (insufficient): some precipitates are observed, but presents a uniform single layer system × ( Poor): A clear precipitate is observed and is separated into two layers.

  From the results of Tables 1 to 4, the water-based cleansing cosmetics of the present invention of each example have a remarkably superior effect on cleansing effect (removal effect of makeup stains) as compared with those of each comparative example. Despite being, there is no stimulation. In addition, it can be seen that the aqueous cleansing cosmetic of the present invention has remarkably excellent formulation stability without causing separation despite the inclusion of a nonionic surfactant.

  On the other hand, in the aqueous cleansing cosmetics of Comparative Examples 1 to 3, 7 to 8, 10, and 13 to 15 that do not satisfy the essential components of the present invention, not only an excellent cleansing effect can be obtained, but also the formulation stability. It turns out that it is also inferior. Furthermore, in the aqueous cleansing cosmetics of Comparative Examples 4 to 6, 9, 11 to 12, and 16 to 18 in which the essential components of the present invention are replaced with other components, an excellent cleansing effect cannot be obtained and the formulation stability is improved. Although it was inferior or an excellent cleansing effect was obtained, irritation occurred, and the effect of the present invention could not be fully achieved.

  Hereinafter, formulation examples of the aqueous cleansing cosmetic according to the present invention will be shown. In addition, content is mass%.

(Prescription Example 1)
Purified water 75.0
Dipropylene glycol 5.0
PEG / PPG / polybutylene glycol-8 / 5/3 glycerin 7.0
PPG-14 Diglyceryl 3.0
Polyoxyethylene (6) (capryl / capric acid) glyceryl 3.0
PEG-20 glyceryl diisostearate 3.0
Citrate buffer 0.3
1,2-octanediol 0.3
Phenoxytanol 0.3
Sodium polyoxyethylene tridecyl ether acetate 0.1
1,3-butylene glycol 3.0
Total 100.0

(Prescription example 2)
Purified water 85.1
Dipropylene glycol 7.0
PEG / PPG / polybutylene glycol-8 / 5/3 glycerol 1.5
PPG-14 Diglyceryl 1.5
Polyoxyethylene (6) (capryl / capric acid) glyceryl 2.0
PEG-8 isostearate 1.0
Phosphate buffer 0.2
Methylparaben 0.3
Octoxyglycerin 0.3
Sodium polyoxyethylene tridecyl ether acetate 0.1
Polyethylene glycol (PEG-400) 1.0
Total 100.0

Claims (4)

An aqueous cleansing cosmetic comprising the following component (A), component (B), component (C) and component (D), wherein the content of the component (A) is 50 to 99% by mass.
Component (A): Water Component (B): Polyoxyethylene (capryl / capric acid) glyceryl having an average addition mole number of ethylene oxide of 6 to 8 Component (C): An average addition mole number of ethylene oxide of 10 to 30 At least one selected from polyoxyethylene dibranched fatty acid glyceryl and polyoxyethylene monobranched fatty acid ester having an average addition mole number of ethylene oxide of 3 to 10 Component (D): diethylene glycol monoethyl ether, polyoxyethylene (8) poly At least one selected from oxypropylene (5) polyoxybutylene (3) glyceryl ether, polyoxypropylene (14) diglyceryl ether and bisethoxydiglycol succinate   The aqueous component according to claim 1, wherein the component (C) is polyoxyethylene glyceryl diisostearate having an average addition mole number of ethylene oxide of 20 and / or polyoxyethylene isostearic acid having an average addition mole number of ethylene oxide of 8. Cleansing cosmetics.   Content of the said component (B) is 0.5-5 mass%, Content of the said component (C) is 0.5-5 mass%, and mass content ratio of a component (B) and a component (C) The aqueous cleansing cosmetic according to claim 1 or 2, wherein (B: C) is in the range of 5: 1 to 1: 2. Furthermore, the water-based cleansing cosmetics in any one of Claims 1-3 containing the following component (E).
Ingredient (E): Buffer