CN112386514B

CN112386514B - Transparent cleansing product

Info

Publication number: CN112386514B
Application number: CN202010782067.0A
Authority: CN
Inventors: 三译秀树
Original assignee: Fancl Corp
Current assignee: Fancl Corp
Priority date: 2019-08-19
Filing date: 2020-08-06
Publication date: 2024-05-07
Anticipated expiration: 2040-08-06
Also published as: JP2021031489A; TWI827872B; JP6792738B1; TW202114628A; CN112386514A

Abstract

The invention aims to provide a transparent cleansing product which contains water and oil and is safe for skin or eyes, has high cleansing power relative to different types of make-up cosmetics, has little residual feeling of oil components after cleansing, is easy to wash with water and has stable temperature. As a solution, a transparent cleansing product is provided, which is characterized by comprising the following (A) to (F): (A) Branched fatty acids having 14 to 22 carbon atoms and/or diesters of unsaturated fatty acids and polyglycerols; (B) More than 1 component selected from caprylic triglyceride, penta-polyglyceryl dicaprylate, hexa-eicosanoate, hexa-polyglyceryl caprate, capric triglyceride, hexa-polyglyceryl dicaprylate and hexa-polyglyceryl dicaprate; (C) oiling agent; (D) More than 1 component selected from glycerol, diglycerol, polyglycerol-3, polyglycerol-4, polyglycerol-5, polyglycerol-6 and polyglycerol-10; (E) 13 to 47 mass% of water; (F) 0.1 to 9.4 mass% of an antibacterial polyol.

Description

Transparent cleansing product

Technical Field

The invention relates to a transparent cleansing product.

Background

There are commercially available water-based makeup removing cosmetics (water-based makeup removing cosmetics) for removing sebum dirt or oily makeup from the skin, which are prepared by adding a surfactant, or oil-based makeup removing cosmetics (oil-based makeup removing cosmetics) for removing oily makeup or oily dirt by dissolving an oily component, which are prepared by emulsifying cloudy water and oil.

Oily makeup removers generally have excellent cleansing performance for oily makeup cosmetics such as lipsticks and foundations, and, on the other hand, performance for removing mascara and the like of the type forming a film tends to be inferior to that of aqueous makeup removers. Further, the oily cleansing product is time-consuming to rinse, and sometimes the oily component may remain on the skin, which may cause unpleasant feeling of sliminess.

On the other hand, the water-based cleansing composition is excellent in washing performance, and is pointed out that the cleansing power of the oil-based cleansing composition is poor, which is excellent in durability (makeup-holding effect) such as water repellency.

Further, emulsified (multiphase) makeup removers obtained by emulsifying clouded water and oil are known, and there is a concern of separation in the future, and the oil-in-water emulsion type is low in cleaning performance due to its emulsified form, and the water-in-oil emulsion type is low in flushing performance.

The present inventors completed a composition containing: a component B which is one or both of a diester of a branched fatty acid having 14 to 22 carbon atoms and a polyglycerin, and a diester of an unsaturated fatty acid having 14 to 22 carbon atoms and a polyglycerin: an ester of a fatty acid having 6 to 10 carbon atoms and a polyglycerin, wherein the ratio of the polymerization degree of the polyglycerin to the bonding number of the fatty acid (= polymerization degree of the polyglycerin/bonding number of the fatty acid) is 2.0 to 4.0 inclusive, and component C: 1 or more than 2 of diester oil of dihydric alcohol and branched fatty acid, triester oil of glycerin and branched fatty acid, and diester oil of dicarboxylic acid and branched fatty alcohol, component D: the invention of a cosmetic oil containing a hydrophilic compound (patent document 1). The cleansing oil exhibits high cleansing power even when mixed with water, is excellent in flushability after cleansing, and is excellent in a feeling of sliminess, in which oil is not easily left. However, since the oil-type oil-based makeup remover is used, the cleansing power tends to be poor for the type of makeup cosmetics (film-type mascara, etc.) that form a film.

Transparent cleansing cosmetics are favored for their aesthetic appearance. In terms of technology, transparent means stable in a uniform single-phase state in a makeup remover in which oil and water coexist. Since emulsification does not occur, improvement in cleansing performance is expected compared to emulsified cleansing products.

Among them, transparent cosmetics obtained by allowing oil and water to coexist have been proposed by various companies.

As transparent cosmetics obtained by allowing oil and water to coexist, for example, patent documents 2 and 3 disclose cosmetics having a water content ratio of 15 mass% or less of oil. The cleansing performance is similar to that of an oily makeup remover, and the cleansing performance of the oily makeup remover is high and the washing degree is relatively easy to be insufficient.

Patent documents 4 and 5 disclose transparent cleansing products having a water content ratio in which the amount of the oil to be blended is 10 mass% or less. As a cleaning property, the cleansing composition has characteristics similar to those of an aqueous cleansing composition, is excellent in easy-to-rinse degree, and is insufficient in relative cleaning effect.

Patent documents 6 to 9 disclose transparent cleansing products in which a nonionic surfactant is blended in a large amount, or a monohydric alcohol having 2 to 5 carbon atoms, a dihydric alcohol such as butanediol or dipropylene glycol, polyethylene glycol or polypropylene glycol, or a compound derivative thereof is blended in a relatively large amount as a surfactant aid. In contrast to the cleansing power of cleansing products prepared by a large amount of these components, which is improved and tends to be easily rinsed, there is a concern about irritation to skin or eye irritation during drying and use, and there is a problem that skin is excessively degreased and the moisturizing feeling after cleansing is lost.

Further, in order to make the makeup remover uniform and transparent, in addition to the balance of water and oil and the selection of a surfactant, the selection and the study of the blending amount are important when blending a polyol. That is, since not all polyols are formulated, the formulator needs more effort to design a transparent and stable formulation. However, it is still impossible to obtain a substance satisfying all the requirements of transparency, stability, cleaning power and safety.

In addition, in the case of aqueous makeup removers, a countermeasure against corrosion of the composition is required. However, in recent years, the formulation of so-called preservatives such as parabens (Paraben) widely incorporated in cosmetics has become unacceptable to consumers due to skin irritation. Therefore, there is a demand for cosmetics which are safe for the skin or eyes and do not contain parabens.

Prior art literature

Patent literature

Patent document 1: japanese patent No. 6234533

Patent document 2: japanese patent No. 4373103

Patent document 3: japanese patent No. 5410650

Patent document 4: japanese patent No. 6006152

Patent document 5: japanese patent No. 6274998

Patent document 6: japanese patent No. 4658976

Patent document 7: japanese patent No. 5468314

Patent document 8: japanese patent No. 6247849

Patent document 9: japanese patent No. 6294642

Disclosure of Invention

In order to achieve the cleansing effect of the cleansing product and to reduce the residual feeling of the oil contained in the cleansing product on the skin after washing, the cleansing product of the type in which the oil and the water coexist is effective. However, in addition to the problems described in the prior art, when both water and oil are contained, the makeup remover is significantly clouded or separated, and the beauty and performance as a cosmetic are often impaired. In addition, even when a makeup remover transparent at normal temperature is obtained, cloudiness or separation may occur when the makeup remover is stored at a high temperature or a low temperature for about 1 month.

Further, in an environment where various types of cosmetic products are marketed, the choices of consumers become various, and it becomes impossible to sufficiently remove makeup by one kind of makeup removing product.

In view of the present situation, an object of the present invention is to provide a transparent cleansing product which contains water and oil, does not contain parahydroxybenzoate and exhibits high corrosion resistance, is transparent and stable in a wide temperature range for cleansing cosmetics safe for the skin or eyes, has high detergency for all kinds of oily or aqueous makeup cosmetics of various types (for example, lipstick, waterproof mascara, film mascara), and has little residual feeling of the oil component after cleansing, and is easy to rinse with water.

The main constitution of the present invention is as follows.

(1) A transparent cleansing product characterized by comprising the following (A) to (F):

(A) Branched fatty acids having 14 to 22 carbon atoms and/or diesters of unsaturated fatty acids and polyglycerols;

(B) More than 1 component selected from caprylic triglyceride, penta-polyglyceryl dicaprylate, hexa-eicosanoate, hexa-polyglyceryl caprate, capric triglyceride, hexa-polyglyceryl dicaprylate and hexa-polyglyceryl dicaprate;

(C) Oiling agent;

(D) More than 1 component selected from glycerol, diglycerol, polyglycerol-3, polyglycerol-4, polyglycerol-5, polyglycerol-6 and polyglycerol-10;

(E) 13 to 47 mass% of water;

(F) 0.1 to 9.4 mass% of an antibacterial polyol.

(2) The transparent cleansing product according to (1), wherein the total amount of the cleansing product contains 7.1 to 40.1 mass% of (D) at least one component selected from the group consisting of glycerin, diglycerin, polyglycerin-3, polyglycerin-4, polyglycerin-5, polyglycerin-6 and polyglycerin-10, and (F) an antimicrobial polyol.

(3) A transparent cleansing product characterized by comprising the following (A) to (F):

(A) 3 to 15 mass% of a branched fatty acid having 14 to 22 carbon atoms and/or a diester of an unsaturated fatty acid and a polyglycerol;

(B) 3 to 15 mass% of 1 or more components selected from caprylic triglyceride, penta-polyglyceryl dicaprylate, hexa-eicosanoite, capric triglyceride, hexa-polyglyceryl dicaprylate and hexa-polyglyceryl dicaprate;

(C) 18 to 50 mass% of an oil agent;

(D) 7 to 35 mass% of 1 or more components selected from glycerol, diglycerol, polyglycerol-3, polyglycerol-4, polyglycerol-5, polyglycerol-6 and polyglycerol-10;

(E) 13 to 47 mass% of water;

(F) 0.1 to 9.4 mass% of an antibacterial polyol.

(4) The transparent cleansing product according to any one of (1) to (3), wherein the antimicrobial polyol (F) is 1 or more selected from the group consisting of 1, 3-Butanediol (BG), dipropylene glycol (DPG), and 1, 2-pentanediol (pentanediol).

According to the present invention, a transparent cleansing product containing both water and oil, free of parabens, low in irritation to the skin or eyes and safe can be obtained. The cleansing product of the present invention is stable, transparent and uniform without separation or cloudiness even when containing an antibacterial polyol over a wide temperature range of 5 to 50 ℃. The cleansing product of the present invention has a high cleansing power with respect to any of various types of makeup cosmetics such as oily makeup cosmetics (for example, lipstick), water-proof makeup cosmetics (for example, water-proof eyeliner), film-type makeup cosmetics (for example, film-type mascara). The cleansing power of the cleansing product of the present invention does not take care of the use situation of the consumer (whether or not water is mixed), and can exert a high cleansing power in any use situation, thereby exerting a cleansing power more excellent than that of the conventional cleansing products. The cleansing product of the present invention does not leave oil on the skin, and can be washed off with water.

The cleansing product of the present invention does not spoil even if bacteria are mixed therein.

Drawings

Fig. 1 is a graph showing the cleaning test results (cleaning rate) of the makeup remover prepared with the compositions of examples 21 to 27 and comparative example 14 with respect to the waterproof eye-liner.

Fig. 2 is a graph showing the results (cleansing rate) of cleansing tests of film type mascara with respect to makeup removers prepared with the compositions of examples 21 to 27 and comparative example 14.

Detailed Description

The components contained in the transparent cleansing product of the present invention will be described below.

(A) The components are as follows: branched fatty acid having 14 to 22 carbon atoms and/or diester of unsaturated fatty acid and polyglycerin

The cleansing product of the present invention contains, as component (A), a branched fatty acid having 14 to 22 carbon atoms and/or a diester of an unsaturated fatty acid and a polyglycerol. Examples of the component (A) include branched fatty acids having 14 to 22 carbon atoms and/or diesters of unsaturated fatty acids having 14 to 22 carbon atoms with polyglycerin, polyglycerin-10 diisostearate, polyglycerin-10 dioleate, and the like.

(A) The content of the branched fatty acid having 14 to 22 carbon atoms and/or the diester of the unsaturated fatty acid having 14 to 22 carbon atoms and the polyglycerol in the component (a) is preferably 1 to 30% by mass, more preferably 3 to 20% by mass, still more preferably 3 to 15% by mass, still more preferably 3 to 12% by mass, based on the total amount of the makeup remover.

The polyglycerin constituting the diester preferably has an average polymerization degree of 5 to 15.

The component (B) of the present invention is at least 1 selected from the group consisting of caprylic triglyceride, penta-polyglyceryl dicaprylate, hexa-eicosanoite, hexa-hexadecanoate, capric triglyceride, hexa-polyglyceryl dicaprylate and hexa-polyglyceryl dicaprate. (B) The component (a) is an ester of a polyglycerin and a fatty acid, and the ratio of the polymerization degree of the polyglycerin to the number of bonding residues of the fatty acid to be bonded by an ester bond (the polymerization degree of the polyglycerin/the number of bonding residues of the fatty acid) is 2.5 to 3.5. Examples of the component (B) include caprylic triglyceride (ratio of degree of polymerization of polyglycerol to number of bonding residues of fatty acid: 3.0), pentapolyglycerol dicaprylate (same 2.5), hexacaprylic eicosanoate (same 3.3), hexacapric eicosanoate (same 3.3), capric triglyceride (same 3.0), hexapolyglycerol dicaprylate (same 3.0) and hexapolyglycerol dicaprate (same 3.0).

Of these, more preferable is hexacosanol (name; polyglycerin-20 hexaoctanoate) or hexapolyglycerin dicaprate (name; polyglycerin-6 dicaprate), and, if importance is attached to the washing performance, more preferable is hexacosanol.

(B) The content of the component (a) is preferably 0.5 to 30% by mass, more preferably 1 to 20% by mass, still more preferably 3 to 15% by mass, and still more preferably 6 to 12% by mass, based on the total amount of the makeup remover.

In the cleansing product of the present invention, the total content of the component (a) and the component (B) is preferably 6 to 30% by mass, more preferably 8 to 20% by mass, and still more preferably 10 to 20% by mass, per the total amount of the cleansing product.

(C) The components are as follows: oiling agent

The cleansing product of the present invention contains an oil agent as component (C). The oil of component (C) contained in the makeup remover of the present invention may be exemplified by the following.

Natural animal and vegetable oils and fats, semisynthetic oils, hydrocarbon oils, ester oils, glyceride oils, silicone oils, fat-soluble vitamins, higher fatty acids, animal and vegetable or synthetic essential oil components, etc.

Examples of natural animal and vegetable oils and semisynthetic oils include avocado oil, linseed oil, almond oil, olive oil (olive fruit oil), wheat germ oil, sesame oil, rice germ oil, rice bran oil, safflower oil, soybean oil, evening primrose oil, corn oil, rapeseed oil, horse fat, palm oil, palm kernel oil, castor oil, sunflower oil, jojoba oil, macadamia nut oil, coconut oil, hardened coconut oil, peanut oil, white pool seed oil, lanolin, and the like.

Examples of hydrocarbon oils include mineral oil, squalane, squalene, liquid paraffin, and vaseline.

Examples of the ester oils include diisobutyl adipate, 2-hexyldecyl adipate, 2-di (heptylundecyl) adipate, isostearyl isostearate, trimethylolpropane triisostearate, cetyl ethylhexanoate, isotridecyl isononanoate, ethylhexyl palmitate, tri (ethylhexanoate) glycerol, di-2- (ethylhexanoate) neopentyl glycol, trimethylolpropane tri-2- (ethylhexanoate), pentaerythritol tetra-2-ethylhexanoate, cetyl ethylhexanoate, oleyl oleate, octyldodecanol oleate, decyl oleate, neopentyl glycol dicaprate, 2-ethylhexyl succinate, isocetyl stearate, butyl stearate, diisopropyl sebacate, cetyl lactate, tetradecyl lactate, isopropyl myristate, ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate, cholesterol 12-hydroxystearate, phytosterol oleate, diisostearyl malate, methoxycinnamic acid, pentaerythritol/decanoate, dioctyl succinate, dihexyl succinate, and coconut ether.

Examples of the glyceride oil include triisostearate, triisopalmitate, tri-2-ethylhexanoate, trimyristate, and di-p-methoxycinnamate monoisooctanoate.

Examples of the silicone oil include higher alkoxy-modified silicones such as polydimethylsiloxane, polymethylphenylsiloxane, polymethylhydrosiloxane, octamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, diphenylsiloxyphenyl trimethicone, and stearoxy silicone, alkyl-modified silicones, and higher fatty acid ester-modified silicones.

As the fat-soluble vitamins, tocopherol and the like, orange peel oil, rosemary leaf oil and the like are used as essential oils.

Among these exemplified substances, preferred oils include cetyl ethylhexanoate, isotridecyl isononanoate, ethylhexyl palmitate, tri (ethylhexanoate), octyl (caprylate/caprate), coco-caprylate/caprate, dioctyl ether, butanediol diisononanoate, diethyl hexyl succinate, mineral oil, avocado oil, white pool seed oil, olive fruit oil, tocopherol, orange peel oil, rosemary leaf oil. Of these, cetyl ethyl hexanoate, isotridecyl isononanoate, ethylhexyl palmitate, tri (ethyl hexanoate) glyceride, (caprylic/capric) octyl ester, coco-caprylic/capric ester, dioctyl ether, butanediol diisononanoate, diethyl hexyl succinate, mineral oil are particularly preferred.

(C) The oil of the components may be contained alone or in combination of 2 or more. The cleansing product of the present invention preferably contains 18 to 50% by mass of the component (C), more preferably 20 to 50% by mass, still more preferably 25 to 50% by mass, based on the total amount of the cleansing product.

(D) The components are as follows: glycerol, diglycerol, polyglycerol-3, polyglycerol-4, polyglycerol-5, polyglycerol-6 and polyglycerol-10

The cleansing product of the present invention contains, as component (D), at least 1 component selected from the group consisting of glycerin, diglycerin, polyglycerin-3, polyglycerin-4, polyglycerin-5, polyglycerin-6 and polyglycerin-10. These ingredients act as surface active aids in the removal of make-up, improving the solubility of water and oil and contributing to the clarity and stability of the removal of make-up.

The cleansing product of the present invention contains 7 to 35% by mass of the component (D), preferably 7 to 30% by mass, and more preferably 8 to 25% by mass, based on the total amount of the cleansing product. If the amount of the surfactant falls outside this range, there is a concern that a transparent and temperature-stable makeup remover cannot be obtained.

(E) The components are as follows: water and its preparation method

The cleansing product of the present invention contains 13 to 47% by mass of water as the component (E) relative to the total amount of the cleansing product in order to obtain a cleansing effect and a washing effect. When the water content is less than 13% by mass, there is a fear that the film-type makeup cosmetic (e.g., film-type mascara) is difficult to remove. If the water content exceeds 47 mass%. There is a concern that the cleansing power of the makeup cosmetic excellent in durability (makeup-holding effect) such as the waterproof makeup cosmetic (for example, waterproof eyeliner) is lowered. In the present invention, if the total amount of water in the component (E) is in the range of 13 to 47% by mass, any of various types of makeup cosmetics (e.g., lip line, waterproof eye line, film mascara) can be removed.

In the present invention, the water content of the component (E) is preferably 13 to 47% by mass, more preferably 15 to 45% by mass.

(F) The components are as follows: antimicrobial polyols

The cleansing product of the present invention contains an antimicrobial polyol as component (F). A transparent cleansing product having high cleansing power and easy-to-rinse properties, which contains the components (A) to (E) of the present invention. However, when water containing the component (E) as an essential component, there is a case where the water is spoiled by bacterial contamination. The invention is especially important in quality design for endowing the cleansing cosmetics with antibacterial property.

In the cleansing products containing the components (a) to (E), parahydroxybenzoate and the like may be formulated. However, although the paraben is dissolved by heating in order to dissolve in water, there is a concern that the paraben which is dissolved by heating may be crystallized depending on the storage condition. Further, in the case of using the cleansing product, the quality is remarkably lowered by the precipitation of a solid substance such as parahydroxybenzoate which may damage the skin due to the action of rubbing the skin. Further, preservatives such as parabens are components which are concerned about their safety to eyes and skin. Therefore, the makeup remover of the present invention contains 1 or more kinds of (F) antimicrobial polyol which is high in safety and free from crystallization.

The antibacterial polyol as the component (F) is preferably 1 or more selected from 1, 3-butanediol (hereinafter BG), dipropylene glycol (hereinafter DPG) and 1, 2-pentanediol (hereinafter pentanediol).

The BG, DPG, and pentanediol as the antibacterial polyol (F) are contained in an amount of 0.1 to 9.4% by mass, more preferably 0.1 to 9% by mass, and particularly preferably 5 to 9% by mass, based on the total amount of the cleansing composition. When the antibacterial polyol other than BG, DPG, and pentanediol is blended, the antibacterial polyol containing the component is preferably contained in an amount of 0.2 to 9.4% by mass, more preferably 0.2 to 9% by mass, and particularly preferably 5 to 9% by mass, based on the total amount.

In the transparent cleansing product of the present invention, when at least 1 component selected from BG, pentanediol, and DPG is contained as the component (F), the content ratio of the component (F) to the component (D) is particularly important. As described above, the component (D) functions as a surfactant in the makeup remover of the present invention, and improves the solubility of water and oil, thereby contributing to the transparency and temperature stability of the makeup remover. On the other hand, BG, pentanediol, and DPG as the component (F) cannot replace the function of the solvent as an oil agent expressed by the component (D), but on the contrary, may cause cloudiness or separation of the makeup remover, and therefore, the content thereof needs to be carefully determined.

The component (F) is not preferably contained in the same amount as or more than the component (D).

(D) The component (c) and the component (F) are preferably contained in a mass ratio of (D): (F) =10:9.4 to 100:1, more preferably 10:9 to 100:1, still more preferably 10:8 to 100:1, and particularly preferably 10:7 to 100:1.

When the component (F) is contained in this manner, the composition can have the effect of containing the component (D), that is, the transparent cleansing composition which is stable in both water and oil, transparent and excellent in temperature stability, and has a high cleansing effect, and can provide a proper antibacterial effect to the composition. If the amount exceeds this range, the composition becomes unstable, and there is a high possibility that cloudiness or separation occurs.

(Formulation of optional Components)

In the transparent cleansing product of the present invention, various materials commonly used in cosmetics can be formulated within a range that does not impair the effects of the present invention. pH adjusters, neutralizers, antioxidants, fragrances, colorants (e.g., cyanocobalamin, (chlorophyllin/copper) complexes), cosmetic ingredients (e.g., rosemary extract), and the like may be formulated.

The transparent cleansing product of the present invention is designed into various dosage forms in consideration of usability or feeling of use. Specifically, it is in the form of liquid or gel.

Examples

Examples 1 to 18 and comparative examples 1 to 13

The following shows the compositions (table 1) of examples 1 to 18 and the compositions (table 2) of comparative examples 1 to 13 of the makeup remover of the present invention, and the features and effects of the present invention will be described in further detail with reference to test examples of the makeup remover of the present invention.

1. Preparation of make-up remover

Make-up removers of the compositions of examples 1 to 18 (Table 1) and comparative examples 1 to 13 (Table 2) were prepared by a conventional method.

2. Evaluation test method

The makeup removers of examples and comparative examples were evaluated by the following methods.

Appearance observation (transparency) >

(A) Appearance immediately after preparation

The prepared makeup remover was filled into a transparent glass bottle (sample bottle) with a screw cap having a diameter of 30mm, and the container was visually inspected at room temperature (RT, 25 ℃) by looking through the container from the side immediately after the preparation and after the lapse of the storage period.

(Transparency evaluation Standard)

And (3) transparency: 10 pound text is readable from the side through the container

White turbidity: 10 pound text cannot be read through the container from the side

Separating: in a separated form

(B) Appearance after stability test (stability)

The sample bottle containing the test sample having a transparent appearance immediately after preparation was stored as a stability test in a constant temperature chamber at 5℃at 25℃at 40℃at 50℃for 1 month. After 1 month of storage, the appearance was again visually observed according to the transparency standard described above.

In addition, the stability test was not performed on the sample having a separated appearance immediately after the preparation, and "-" was described in the evaluation columns of tables 1 and 2 below.

Flushing performance (determination of the volume-based mean particle diameter of the emulsified particles) >

The makeup remover used in the test was diluted with water to 0.1% to prepare an O/W type emulsified composition. The particle size distribution of the emulsified particles in the emulsified composition was measured by a dynamic light scattering method using ELSZ-1000 (manufactured by Otsuka electronics Co., ltd.) and the volume-standard average particle size was measured. The emulsified particle diameter (volume-standard average particle diameter) was used as an index for evaluating the flushing property.

In addition, the following results were obtained by performing preliminary tests in advance on the relationship between the volume standard average particle diameter of the makeup remover and the easy-to-rinse degree of the oily component.

(1) If the emulsified particle size exceeds 300nm, the skin is provided with oily feeling

(2) Flushing with emulsified particle size of 101-300 nm

(3) When the emulsion particle diameter is 100nm or less, the washing can be performed more quickly and cleanly

In the above description, "-" indicates that the volume-standard average particle diameter of the dilution of the makeup remover was not measured.

< Easy rinse (sensory evaluation) >)

1 Trained sensory evaluator assessed the water-based ease of rinsing after application of the makeup remover of the present invention on the inside of the upper arm.

(Evaluation criteria)

O: easy-to-rinse oil-sensitive skin without residue

X: residual oily feel on skin after rinsing

< Evaluation of cleaning force (evaluation of easy removal of cosmetic soil based on sensory test) >

The test for the easy removal of lipstick, waterproof eye liner and film type mascara was carried out.

The trained sensory evaluator actually used each cosmetic for evaluation. That is, the sensory evaluator made up with the cosmetic to be cleaned, and after 1 hour, made up with the makeup remover and the fingers to be evaluated in the room. After rinsing with water, the water drops were gently wiped off with a towel, and the removal of the make-up soil was visually observed.

The cosmetics used are as follows.

Lipstick: moisture Rouge P#84Velvet Red

(Manufactured by Kagaku FANCL)

Waterproof type eye line: MASTER LINER CREAMY PENCIL BK-1

(Meibao lotus New York System)

Film mascara: PERFECT MASCARA R21A 21

(Manufactured by Kagaku Ai Tianran)

(Evaluation criteria)

O: the cosmetic dirt is removed basically cleanly

Delta: some residue of cosmetic dirt

X: obvious residue of cosmetic dirt

< Preservation efficacy test >

Preservation tests were performed based on preservation efficacy test methods formulated in the japanese pharmacopoeia using ESCHERICHIA COLI (escherichia coli), pseudomonas aeruginosa (pseudomonas aeruginosa), staphylococcus aureus (staphylococcus aureus), and the antibacterial effect was evaluated (the test methods follow the japanese pharmacopoeia). There was no problem with either bacteria in the preservation efficacy test. The table is described as "decrease". In addition, in the case of "increase" example 1, which was judged to be a problem in the preservation efficacy test, none was found.

< Panelist trial >)

The commentator test (home test) was performed by 20 female commentators at home. For each commentator, the following indications are issued: cosmetic products (lipstick, waterproof eyeliner, film type mascara, all the same as the above sensory test) dispensed simultaneously with the test products were used in the morning, and the test products were used at night. The amount and the number of times of use of the test article are not particularly limited. The evaluation was carried out in a freely described manner. For eye irritation, either "with" or "without" eye irritation is selected. Example 1, which answers "have" in the commentator test, also did not. In the table, the "none" is recorded in the item of eye irritation.

3. Evaluation results

The evaluation results of examples 1 to 18 and comparative examples 1 to 13 are shown in the following tables 1 and 2. In addition, comparative examples are described in terms of "(a) appearance immediately after preparation", "b) appearance (stability) after stability test" and "flushing performance" after the test.

TABLE 1

TABLE 2

Examples 1 to 18 contained the component (A) in the range of 5 to 9.6 mass%, contained the component (B) in the range of 6.4 to 12 mass%, contained the component (C) in the range of 20 to 44 mass%, contained the component (D) in the range of 10 to 20 mass%, contained the component (E) in the range of 20 to 45 mass%, and contained the component (F) in the range of 5 to 9 mass%.

On the other hand, each comparative example had the following composition: comparative examples 1 to 2 contain no component (D) and no component (F), comparative examples 3 to 7 contain no component (D), comparative examples 8 to 9 and 11 contain no component (B), and comparative examples 10 and 12 to 13 contain no component (A).

Appearance (transparency) >

(A) Appearance immediately after preparation

The cleansing products of examples 1 to 18 were all transparent in appearance. On the other hand, the makeup removers of comparative examples 1 to 13 did not obtain a sample having a transparent appearance immediately after preparation. Among them, the samples of comparative examples 1 to 3 and 5 were in a cloudy state, and at this time, it was judged that the cosmetic remover which was the object of the present invention was not satisfied, but a stability test was performed in a constant temperature room at 5 ℃, 25 ℃, 40 ℃ and 50 ℃.

(B) Appearance after stability test (transparency, separation)

When the cosmetics of examples 1 to 18 were stored in a constant temperature room at 5℃and 25℃and 40℃and 50℃for 1 month, and then taken out to evaluate the transparency, all the cosmetics remained transparent. On the other hand, the makeup removers of comparative examples 1 to 3 and comparative example 5 were all in a separate state after being stored at any temperature range of 5 ℃, 25 ℃, 40 ℃ and 50 ℃ for 1 month.

When comparing the compositions of examples 1 to 18 with those of comparative examples 3 to 7, the compositions of comparative examples 3 to 7 were compositions containing BG or DPG as a polyol in place of the glycerin, diglycerin, and polyglycerin, which are the polyols of component (D) in examples 1 to 18. However, the composition causes cloudiness or separation of the makeup remover immediately after preparation. That is, it was confirmed that the makeup remover containing water, oil and surfactant had to have the compositions of examples 1 to 18 and contain glycerin, diglycerin and polyglycerin as the component (D) of the polyol.

It was also found that even though the makeup remover contains a polyol, the makeup remover contains only BG and DPG, which causes cloudiness and separation, and does not contribute to the transparency and stabilization of the composition (see evaluation of appearance immediately after preparation of comparative examples 3 to 7).

Further, comparative examples 1 to 7 have compositions containing the components (a), (B), (C) and (E) and not containing the component (D). Wherein comparative examples 1 and 2 are compositions containing no BG or DPG. On the other hand, the compositions of comparative examples 3 to 7 were compositions containing BG or DPG. When the results of appearance evaluation of the compositions immediately after preparation were compared, comparative examples 1,2,3 and 5 were only clouded, but comparative examples 4, 6 and 7 were isolated from each other immediately after preparation.

On the other hand, examples 1 to 18 contained BG or DPG, but neither cloudiness nor separation occurred in the transparency and storage stability test immediately after the preparation. That is, it was found that the transparency and the storage stability were excellent. In the embodiment, the mass ratio of the two components (D) and (F) is in the range of (D): (F) =10:9 to 20:5.

< Washing Performance (determination of volume-Standard average particle diameter of emulsified particles >)

The volume standard average particle diameters of the emulsified particle diameters of the diluents measured for the cosmetics removers of examples 1 to 14 and 18 are shown in table 1. The minimum value was 66.7nm (example 9) and the maximum value was 244.2nm (example 12). Half of the 15 cases (examples 2, 3,4, 5, 9, 10, 11, 18) were evaluated as "rinse which was more rapid and refreshing when the emulsified particle size was 100nm or less". The remaining 7 examples (examples 1, 6, 7, 8, 12, 13 and 14) were also evaluated for "flushing which was rapid and refreshing when the emulsified particle size was 101 to 300 nm".

< Easy rinse (sensory evaluation) >)

The evaluation results of the sensory panelists are shown in table 1.

All make-up removers of examples 1 to 18 were evaluated for ": evaluation of "no oily feel and easy rinsing remaining on skin". The results of the washing tendency (sensory evaluation) were consistent with the determination of the measurement results of the volume-standard average particle diameter.

< Evaluation of cleaning force (evaluation of easy removal degree of cosmetic dirt based on sensory evaluation) >

The results of evaluating the removability of lipstick, waterproof eye liner, and film type mascara are shown in table 1.

The makeup removers of examples 1 to 18 were all evaluated as "o", and it was confirmed that the evaluation of "substantially cleanly removing the makeup dirt" was obtained.

< Preservation efficacy test >

By the test based on the standards of Japanese pharmacopoeia, it was judged that there was no problem in any of the species E.coli, pseudomonas aeruginosa, staphylococcus aureus as "reduced".

< Panelist trial >)

When the makeup removers of examples 9, 10, 13 and 14 were given to 20 female commentators, the commentators test (home test) was carried out at home, and no dissatisfaction was observed with respect to the cleaning force, and a very high evaluation was made in the opinion column that any of film type mascara, waterproof type eye liner, foundation and lipstick could be removed well. Furthermore, no report of stimulus to the skin or eyes was found in 1 case.

There are various types of make-up cosmetics on the market, the choice of which is left to the consumer's preference. The transparent cleansing product of the present invention is formulated with water in advance stably, and therefore, excellent cleansing effect can be obtained stably at all times regardless of the type of makeup cosmetic selected by the consumer or the use situation (bathroom where there is a high risk of mixing in water/room where there is no risk of mixing in water) of the consumer. In particular, in the prior art, it is necessary to remove makeup from the eyes with a makeup remover dedicated to removing makeup from the eyes, and to remove makeup from the whole face with another makeup remover. However, in the case of the makeup remover of the present invention, only 1 makeup remover is used, and all kinds of makeup removers can be removed. The present invention, which is an object of the present invention to achieve such a cleaning effect, is an epoch-making object which cannot be considered in the prior art cosmetics.

The cleansing product of the present invention is transparent and stable in appearance even when the antimicrobial polyol is formulated, and is highly safe because it has low irritation to eyes and skin.

Examples 19 to 27 and comparative examples 14 to 15

The optimum blending amount of water as the component (E) of the present invention was studied in detail. Experiments for comparison study based on the compositions of examples 19 to 27 and comparative examples 14 to 15 (Table 3) are shown and the results thereof are described in detail.

1. Preparation of make-up remover

Make-up removers of the compositions of examples 19 to 27 and comparative examples 14 to 15 (Table 3) were prepared according to a conventional method.

2. Evaluation test method

The cosmetics were evaluated by the same test methods as those conducted for the cosmetics of examples 1 to 18 and comparative examples 1 to 13.

The following test items were carried out: "appearance observation (transparency) >," (a) appearance immediately after preparation, (b) appearance after stability test (stability) "," rinsing performance (measurement of volume standard average particle diameter of emulsified particles) >, "" easy rinsing degree (sensory evaluation) >, "" cleaning force evaluation (evaluation of easy removal degree of cosmetic dirt based on sensory evaluation) >.

3. Evaluation results

The evaluation results are shown in the following table 3.

TABLE 3

Examples 19 to 27 have compositions for transparent cleansing cosmetics containing 7 to 9.6% by mass of the component (A), 6.4 to 9% by mass of the component (B), 23.4 to 44% by mass of the component (C), 8 to 25% by mass of the component (D), 15 to 44.99% by mass of the component (E), and 5 to 8% by mass of the component (F).

On the other hand, comparative example 14 contained 9.6 mass% of the (A) component, 6.4 mass% of the (B) component, 44 mass% of the (C) component, 25 mass% of the (D) component, 5 mass% of the (F) component, and 10 mass% of the (E) component. Further, comparative example 15 contains 9.6 mass% of the (a) component, 6.4 mass% of the (B) component, 20 mass% of the (C) component, 9 mass% of the (D) component, 5 mass% of the (F) component, and 50 mass% of the (E) component.

Appearance observation (transparency) >

(A) Appearance immediately after preparation

The cleansing products of examples 19 to 27 were all transparent in appearance. In addition, the makeup remover of comparative example 14 was also transparent. On the other hand, the appearance immediately after the preparation of comparative example 15 was cloudy and opaque. The samples of examples 19 to 27 and comparative example 14 were subjected to a stability test at 5℃and 25℃and 40℃in a constant temperature chamber of 50 ℃.

(B) Appearance after stability test (stability)

When the cosmetics of examples 19 to 27 and the cosmetics of comparative example 14 were stored in a constant temperature chamber at 5℃and 25℃and 40℃and 50℃for 1 month, and then taken out to evaluate the transparency, all the cosmetics remained transparent.

The volume-standard average particle diameters of the emulsified particle diameters measured for the makeup removers of examples 19 to 27 and the makeup remover of comparative example 14 are shown in table 3. In 2 cases (examples 21 and 25) among the cases of example 9, the evaluation of "flushing with a particle size of 100nm or less in emulsion was made, which made it possible to more quickly and cleanly. The remaining 7 examples (examples 19, 20, 22, 23, 24, 26, 27) and comparative example 14 also showed volume-standard average particle diameters of emulsified particles evaluated to give "flushing which can be quickly refreshed if the emulsified particle diameters were 101 to 300 nm".

< Easy rinse (sensory evaluation) >)

The evaluation results of the sensory panelists are shown in table 3.

All make-up removals of examples 19 to 27 and comparative example 14 gave "good: evaluation of "no oily feel and easy rinsing remaining on skin". The results of the washing tendency (sensory evaluation) were consistent with the determination of the measurement results of the volume-standard average particle diameter.

The results of evaluating the removability of lipstick, waterproof eye liner, and film type mascara are shown in table 3.

The makeup removers of examples 19 to 27 were all evaluated as "o", and it was confirmed that the makeup dirt was removed substantially cleanly. However, the makeup remover of comparative example 14 failed to remove the dirt of the film-type mascara, and the test gave an "X" evaluation.

From the above test results, the following conclusions can be drawn.

That is, it is clear from the makeup remover of comparative example 14 that the content of water as the component (E) must exceed 10 mass% in order to remove the film-type mascara.

Further, from comparative example 15, it is considered that the content of water as the component (E) is required to be less than 50% by mass in order to prevent the makeup remover from becoming cloudy or the like.

On the other hand, from examples 19 to 27, which were transparent immediately after preparation and also transparent after the storage test, the "good" evaluation was obtained on the easy-to-rinse degree in the sensory evaluation and the cleaning effect based on the sensory evaluation, it was considered that this was an effect due to the water content of the component (E) being in the range of 15 to 44.99 mass%.

Quantitative evaluation test for cleaning force of waterproof type eyeliner and film type mascara

In order to accurately measure the cleansing power of the cleansing products of examples 21 to 27 and comparative example 14 with respect to the waterproof eye-liner and film-type mascara, quantitative cleansing power measurement was performed (see fig. 1 and 2 for results).

Test method

In this test, the cleansing power was evaluated by determining the cleansing power of the cosmetic based on the color difference.

(Calculation of the cleansing ratio of make-up cosmetic)

The color value 1 of the white artificial leather before the application of the make-up cosmetic (hereinafter referred to as "make-up") and the color value 2 of the test specimen after the application of the make-up cosmetic and the color value 3 of the test specimen after the cleaning by the test specimen were measured by using a color difference meter (device name: CM-2600d,Konica Minolta Co., ltd.) and the color difference (DeltaEa; color difference before and after the application, deltaEb; color difference before and after the cleaning) was obtained from the measured values, and the make-up cleaning rate (%) was further calculated from the following calculation.

Further Δe= (Δl ²+Δa²+Δb²)^1/2.

Cosmetic cleaning rate (%) =Δeb/Δea×100

The higher the value of the cosmetic cleaning rate (%) is, the higher the cleaning force can be judged.

Specifically, the method is performed as follows.

< Method of evaluating cleaning force >)

(1) In a range of 1cm in diameter of 3cm by 6cm of white artificial leather for which measurement of color value 1 was previously completed, 0.005g of waterproof eye thread or film type mascara was applied and dried for 30 minutes. This was used as a test object.

As waterproof type eyeliner, meibaomen New York MASTER LINER CREAMY PENCIL BK-1 was used.

Also, ai Tianran PERFECT MASCARA R as a film type mascara was used.

(2) The color value 2 of the test object thus produced was measured by a color difference meter (apparatus name: CM-2600d,Konica Minolta Co., ltd.).

(3) 0.1Ml of the test sample was dropped onto the test object prepared in (1) above, and the test object was rubbed 20 times with a finger at a speed of 1 second for 1 time.

(4) The test specimen was rinsed thoroughly with water and dried.

(5) The color value 3 of the dried test specimen was measured by a colorimeter.

(6) According to the calculation formula of the makeup cleaning rate, the cleaning rate (%) of the waterproof type eyeliner or film type mascara is obtained.

Measurement of cleaning force test results

The test results of the cleansing force for the waterproof eye wire or film type mascara are shown in fig. 1 and 2.

As shown in fig. 1, the cleansing products of examples 21 to 27 and comparative example 14 each had a high cleansing performance of 80% or more for the waterproof eye-wire.

On the other hand, it is recognized that the difference in cleaning force between examples and comparative examples is large for film type mascaras forming films. That is, as shown in fig. 2, examples 21 to 27 exhibited a cleaning effect of 80% or more with respect to the film-type mascara forming a film, and exhibited a strong cleaning effect. Comparative example 14 showed very low cleansing force and only 10% or less cleansing force with respect to the film type mascara. The test results are very consistent with the sensory test results.

As described above, it is clear from the experiments using examples 21 to 27 and comparative example 14 that the content of water in the component (E) must exceed 10 mass% with respect to the total amount of the makeup remover in order to clean the film-type mascara. In addition, it is determined that the optimum content of water in the component (E) is in the range of 13 to 47 mass%, more preferably 15 to 45 mass%, in order to maintain the transparency stability based on storage.

Study of the maximum content of component (F) (study based on comparative examples 16 to 31)

In order to confirm the maximum content of the antimicrobial polyol as the component (F) of the present invention, studies were made based on the compositions of comparative examples 16 to 31 (Table 4). The test results are shown for illustration.

1. Preparation of make-up remover

The cleansing products of comparative examples 16 to 31 (compositions of Table 4) were prepared by a conventional method.

Comparative examples 16 to 29 have compositions in which the content of the components (a) to (E) was adjusted so as to fall within the range of the content suitable for the makeup remover of the present invention, and the content of the antibacterial polyol of the component (F) was adjusted to 10 to 30 mass%. Further, the content of cetyl ethylhexanoate as the component (C) and glycerin as the component (D) and the content of water as the component (E) were appropriately increased and decreased within an allowable range with respect to the increase in the content of the antimicrobial polyol.

The contents of the components (a) to (D) in comparative examples 30 and 31 were adjusted so that the water content of the component (E) was reduced to 10 mass% and the BG or DPG of the component (F) was increased to 30 mass% based on the composition of the makeup remover of the present invention. The content of the antimicrobial polyol is thus varied.

2. Evaluation test method

Each test sample was evaluated by the same test method as the evaluation test for the cosmetics remover of examples 1 to 18 and comparative examples 1 to 13.

The test items were evaluated for "< appearance observation (transparency) >, (a) appearance immediately after preparation, (b) appearance after stability test (stability)", "< washing performance (measurement of volume-standard average particle diameter of emulsified particles) >".

3. Evaluation results

The evaluation results are shown in the following table 4.

TABLE 4

Appearance observation (transparency) >

(A) Appearance immediately after preparation

The makeup remover of comparative example 19 was a transparent makeup remover. On the other hand, the makeup removers of comparative examples 16 to 18 and comparative examples 20 to 31 were opaque and cloudy in appearance immediately after preparation. Therefore, the samples of comparative example 19, which were judged to be defective except for comparative example 19, were subjected to only a stability test in which the samples of comparative example 19, which maintained the transparent appearance, were stored at 5℃at 25℃at 40℃at 50 ℃.

(B) Appearance after stability test (stability)

The cleansing product of comparative example 19 subjected to the stability test was stored in a constant temperature chamber at 5℃and 25℃and 40℃and 50℃for 1 month, and then taken out to evaluate the transparency. Transparency was maintained at a temperature of 5℃and 25℃but separation occurred at a temperature of 40℃and 50 ℃. Therefore, comparative example 19 failed to achieve the intended stability, and was judged to be unsatisfactory.

The makeup remover of comparative example 19 was measured only immediately after the preparation. The volume-standard average particle diameter of the emulsified particle diameter of the diluent was 51.2nm as shown in Table 4.

In the above, makeup removers of the compositions of comparative examples 16 to 31 were prepared, and tests for confirming the limit of the maximum content of the antimicrobial polyol as the component (F) were performed. However, it is difficult to contain 10 mass% or more of the antibacterial polyol as the component (F). That is, it is determined that it is not preferable to contain 10% by mass or more of the antibacterial polyol as the component (F) in order to prepare a transparent cleansing product which is the object of the present invention and has high storage stability.

Claims

1. A transparent cleansing product characterized by comprising the following (A) to (F):

(A) 5 to 9.6 mass% of at least one selected from the group consisting of polyglyceryl-10 diisostearate and polyglyceryl-10 dioleate;

(B) 6.4 to 12 mass% of at least 1 component selected from hexacaprylate hexaglycerate and hexapolyglyceryl dicaprate;

(C) 20 to 44 mass% of an oil agent;

(D) 8 to 25 mass% of at least 1 component selected from glycerol, diglycerol and polyglycerol-5;

(E) 15 to 45 mass% of water;

(F) 0.25 to 9 mass% of an antibacterial polyol selected from 1, 3-butanediol, i.e., BG, dipropylene glycol, i.e., DPG, 1, 2-pentanediol, and 1 or more,

Wherein the mass ratio of the component (D) to the component (F) is (D): (F) =10:9-100:1.