JP2009242253A - Oil-based liquid cleansing composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an oil-based liquid cleansing composition which exhibits further improved applicability even when applied to a site with adherent water. <P>SOLUTION: The oil-based cleansing composition contains polyglyceryl isononanoate and an oil which is liquid or pasty at 25°C. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an oily liquid cleansing composition.

Oil-based cleansing agents are on the market for the purpose of removing skin stains and makeup cosmetics. This was developed mainly for the purpose of exerting a cleansing effect, and many liquid products have been developed. Conventional oil-based cleansing materials, when used on skin wet with water, have the disadvantage that the cleansing power is remarkably reduced because they become an emulsion or suspension and become cloudy. However, in recent years, oily liquid cleansing compositions that do not emulsify or thicken significantly even when a significant amount of water is mixed in have been developed, and can be used in wet environments such as bathrooms and washstands. It is on the market.
The liquid oil-based cleansing composition having the above functions is pre-mixed with water or designed to solubilize a large amount of water. It was. The low viscosity oily liquid cleansing composition is difficult to remove from the hand and hangs down from the fingers, and is difficult to apply to the target part during use (Japanese Patent Application Laid-Open No. 2004-75566). Moreover, since the low-viscosity oil-based liquid cleansing composition does not easily remain on the application part during cleansing, it acts directly on the skin, which leads to irritation to the skin and discomfort during use.
As a technique for thickening an oily liquid cleansing composition, a technique for thickening with (behenic acid / eicosanedioic acid) glyceryl to prevent dripping from the fingers during use is disclosed (Patent Document 2). JP, 2003-267835, A).

As an oily liquid cleansing composition that maintains cleanliness in an environment where the hands and face are wet, the oil component at room temperature is 50% by mass or more, and the nonionic surfactant having an HLB of 5 to 16 is 20 to 40% by mass. % Oil-containing liquid cleansing composition (Patent Document 3 JP 2006-225458 A), monoglycerin fatty acid ester, polyglycerin fatty acid ester, nonionic surfactant, liquid oil and water at 25 ° C. An oily liquid cleansing composition (Patent Document 4 Japanese Patent Application Laid-Open No. 2004-75566) is known.
In addition, the applicant must first use the environment that is easy to apply to the target site without dripping from the hand during use, has good spread during cleansing, and has wet hands and face such as bathrooms and washstands. An oil-based cleansing that can be used below has been proposed (Patent Document 5: Japanese Patent No. 3729836).
However, an oily liquid cleansing composition having further excellent usability is desired.

JP 2004-75566 A JP 2003-267835 A JP 2006-225458 A JP 2004-75566 A Japanese Patent No. 3729836

  An object of the present invention is to provide an oily liquid cleansing material having improved usability even when water is attached during use.

Thus, as a result of investigating the above problems and repeating research, the present inventors have found a surfactant exhibiting excellent performance and completed the present invention.
The main configuration of the present invention is as follows.
(1) An oily liquid cleansing composition comprising polyglyceryl isononanoate and a liquid or pasty oil agent at 25 ° C.
(2) The degree of esterification of isononanoic acid of polyglyceryl isononanoate is 7 to 10, and the degree of polymerization of polyglycerin residues is 15 to 25. The composition for oily liquid cleansing according to claim 1 .

Since the oil-based liquid cleansing composition of the present invention has improved water solubility, it can maintain the function of removing makeup cosmetics such as lipsticks and mascara even when water drops are on the hands or face. Make-up removal is possible even when the hands and face are wet during face washing or bathing, improving usability. In particular, the oily liquid cleansing composition of the present invention can sufficiently maintain the cleansing function even when an amount of water equal to or greater than the amount taken by the hand is present.
Since the cleansing power is improved, foundation solubility can be improved, and mascara and eyeliner solubility can be improved. Since it is an oily liquid cleansing composition with excellent solubility in base makeup, lip and eye makeup, it can be used for various makeups and has improved versatility.
Further, the oily liquid cleansing composition of the present invention has a fine emulsified particle size at the time of washing out and is easy to wash out.

Hereinafter, embodiments of the present invention will be described in more detail. It is an oily liquid cleansing composition that can sufficiently maintain the mechanism of cleansing action even when water drops are present on the hands and face when blended with polyglyceryl isononanoate as a surfactant.
The composition for oil-based liquid cleansing of the present invention is composed of a polyglyceryl isononanoate that is a surfactant and a liquid or pasty oil agent at 25 ° C., a nonionic surfactant other than polyglyceryl isononanoate, an oil-based thickening agent. A feeling of use etc. can be improved by mix | blending an agent etc.

The polyglyceryl isononanoate used in the present invention is an ester bond of isononanoic acid and polyglycerin. The polymerization degree of polyglycerol is preferably 15-25. The number of isononanoic acids to be ester-bonded to one molecule of polyglycerol is preferably 7-10.
By using isononanoic acid polyglycerin, the ability of oily liquid cleansing composition to solubilize water (formation of W / O type microemulsion) is improved, and even if it is used on wet skin, make-up removal function is demonstrated. The Further, when a large amount of water is added and washed away, the emulsified particle diameter becomes fine, and the washing is excellent. Also, when polyglyceryl isononanoate is used, the spread is improved and the cleansing cosmetic can be smoothly and quickly spread over the entire face without pulling the skin.
The amount of polyglyceryl isononanoate blended is preferably 1 to 40% by mass, more preferably 4 to 25% by mass, based on the total amount of the oily liquid cleansing composition. When the amount is less than 1% by mass, the detergency and water washability of the composition are insufficient, and when it is more than 40% by mass, the fluidity may be deteriorated or the skin may be irritated.

Examples of the liquid or pasty oil used at 25 ° C. in the present invention include ester oils, animal and vegetable oils, hydrocarbon oils, silicone oils, higher fatty acids and higher alcohols. In particular, when a diester of a fatty acid having 6 to 10 carbon atoms and a dihydric alcohol is used as the ester oil, it is highly compatible with a makeup cosmetic and exhibits an excellent cleaning function. Examples of the fatty acid having 6 to 10 carbon atoms include 2-ethylhexanoic acid, isononanoic acid, caproic acid, caprylic acid, capric acid and the like. Among fatty acids having 6 to 10 carbon atoms, branched fatty acids are superior in detergency and functions that can be used with wet hands. Examples of the divalent alcohol include ethylene glycol, propylene glycol, 1,3-butylene glycol, dipropylene glycol, neopentyl glycol, and 1,2-pentanediol. Among the dihydric alcohols, propylene glycol, 1,3-butylene glycol and dipropylene glycol are preferable for obtaining higher detergency.
Specific examples of diesters of fatty acids having 6 to 10 carbon atoms and dihydric alcohols include ethylene glycol di2-ethylhexanoate, propylene glycol di2-ethylhexanoate, and 1,3-diethylhexanoate 1,3- Butylene glycol, dipropylene glycol di-2-ethylhexanoate, neopentyl glycol di-2-ethylhexanoate, 1,2-pentanediol di-2-ethylhexanoate, ethylene glycol diisononanoate, propylene glycol diisononanoate, diisononanoic acid 1, 3-butylene glycol, dipropylene glycol diisononanoate, neopentyl glycol diisononanoate, 1,2-pentanediol diisononanoate, ethylene glycol dicaproate, propylene glycol dicaproate, 1,3-dicaproic acid 1,3- Tylene glycol, dipropylene glycol dicaproate, neopentyl glycol dicaproate, 1,2-pentanediol dicaproate, ethylene glycol dicaprylate, propylene glycol dicaprylate, 1,3-butylene glycol dicaprylate, dipropylene glycol dicaprylate, dicapryl Neopentyl glycol diacid, 1,2-pentanediol dicaprylate, ethylene glycol dicaprate, propylene glycol dicaprate, 1,3-butylene glycol dicaprate, dipropylene glycol dicaprate, neopentyl glycol dicaprate, dicaprate 1,2 -Pentanediol and the like.
Other ester oils include 2-ethylhexyl isononanoate, isononyl isononanoate, isodecyl isononanoate, octyl palmitate, cetyl 2-ethylhexanoate, tri (capryl / capric acid) glycerin, tri-2-ethylhexanoic acid Examples thereof include glycerin and isostearic acid trehalose esters.

Animal and vegetable oils such as olive oil and jojoba oil, hydrocarbon oils such as liquid paraffin and squalane, silicone oils such as methylpolysiloxane and methylphenylpolysiloxane, higher fatty acids such as isostearic acid and oleic acid, and higher alcohols Examples include octyldodecanol and oleyl alcohol.
The blending amount of the liquid or pasty oil agent at 25 ° C. used in the present invention is preferably 40 to 95% by mass with respect to the total amount of the oily liquid cleansing composition. If it is less than 40% by mass, the effect of raising the makeup cosmetic from the skin will be poor, and if it exceeds 95% by mass, it will be difficult to wash off after the makeup cosmetic is familiarized.

  In the oily liquid cleansing composition of the present invention, a nonionic surfactant other than polyglyceryl isononanoate can be blended. By blending a nonionic surfactant, it is possible to improve the washing-off performance after the makeup cosmetic is blended. Nonionic surfactants used in the present invention include polyglyceryl fatty acid esters such as polyglyceryl-10 diisostearate, polyglyceryl isostearate, polyglyceryl triisostearate, polyglyceryl-10 caprate, polyglyceryl laurate-5. , Polyglyceryl-2 caprate, polyoxyethylene alkyl ethers, polyoxyethylene (10) isostearyl ether, polyoxyethylene (10) octyldodecyl ether, sorbitan fatty acid esters, sorbitan isostearate, sorbitan laurate , Palm fatty acid sorbitan, etc., as fatty acid polyethylene glycols, polyethylene glycol isostearate (8), polyethylene glycol oleate (10), polyoxyethylene castor oil, polyethylene glycol (30) hydrogenated castor oil, polyoxyethylene sorbitan fatty acid ester, coconut oil fatty acid polyethylene glycol (20) sorbitan, etc., polyoxyethylene glyceryl ether fatty acid Examples of the esters include polyethylene glycol (40) glyceryl isostearate and polyethylene glycol (30) glyceryl triisostearate.

  An oily thickener can be blended in the oily liquid cleansing composition of the present invention. Examples of oil thickeners include inulin stearate, behenic acid / glycosyl eicosane diacid, dextrin palmitate, dextrin (palmitate / octanoic acid), and the like.

  In addition, various raw materials commonly used in cosmetics can be blended within a range that does not impair the effects of the present invention.

Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto.
In the composition shown in Table 1, each component was mixed at 80 ° C., cooled to room temperature, and oily liquid cleansing compositions of Examples 1 to 5 and Comparative Example 1 were prepared. The oily liquid cleansing composition of Comparative Example 1 was prepared based on the prior art (Patent Document 5).

  Among Examples, Example 1 and Comparative Example 1 were compared by the following evaluation tests 1 to 3.

<Evaluation test 1>
The cleansing force when water was added to the oily liquid cleansing composition of Example 1 and Comparative Example 1 was measured by the following procedure.
(1) Bioskin (manufactured by Beaulux) was measured with a spectrocolorimeter (light incident angle 45 degrees, measurement angle 0 degrees).
(2) 0.01 g of lipstick was uniformly applied and applied in a 2 cm × 2 cm range (n = 3).
(3) After drying for 10 minutes, the bioskin after the application of lipstick was measured with a spectrocolorimeter using a spectrocolorimeter (light incident angle of 45 degrees, measurement angle of 0 degrees).
(4) 60, 80, 100, 120, 140 mass% purified water was added to the oily liquid cleansing composition of Example 1 and Comparative Example 1 with respect to the amount of the oily liquid cleansing composition ( The mass ratios of the oily liquid cleansing composition and purified water when 60, 80, 100, 120, and 140% by mass of purified water were added were 1: 0.6, 1: 0.8, 1: 1, 1 : 1.2, 1: 1.4).
(5) Oil skin cleansing composition of Example 1 and Comparative Example 1, Example 1 to which purified water prepared in (4) was added, Bioskin after applying lipstick to the oily liquid cleansing composition of Comparative Example 1 0.1 g was applied to the surface and rubbed 10 times with a finger to blend in with the lipstick.
(6) After washing with water, the bioskin was measured with a spectrocolorimeter (light incident angle 45 degrees, measurement angle 0 degrees).
(7) Colorimetric value L * (1), a * (1), b * (1), (3) colorimetric value L * (3), a * (3), b * ( The residual rate of lipstick was calculated by the following formula using the colorimetric values L * (6), a * (6), and b * (6) of 3) and (6).

Color difference between bioskin after lipstick application and bioskin before lipstick application (R1)

R1 = [(L * (3) −L * (1)) ² + (a * (3) −a * (1)) ² + (b * (3) −b * (1)) ² ] ^{1 / 2}

Color difference between bioskin after washing and bioskin before applying lipstick (R2)

R2 = [(L * (6) −L * (1)) ² + (a * (6) −a * (1)) ² + (b * (6) −b * (1)) ² ] ^{1 / 2}

Lipstick remaining rate = (R2 / R1) * 100 (%)

The relationship between the amount of purified water added to the oily liquid cleansing composition and the residual rate of lipstick is shown in Table 2 and FIG.

  Table 3 shows the amount of water added when the amount of water adhering to the wet hand and face (ml) and the amount of oily liquid cleansing composition used was 2 ml. As a result, even when used during face washing and bathing, it is assumed that the amount of water added is within 120%. Therefore, applying the results in Table 2, this example is sufficient even when handled with a wet face and hands. It can be seen that the cleaning power is demonstrated.

<Evaluation Test 2>
For the oily liquid cleansing compositions of Example 1 and Comparative Example 1, in order to evaluate the ease of washing, the O / W emulsified particle size when a large amount of water was added was measured by the following procedure.
(1) Add 0.5 mL of purified water to 1 g of the oily liquid cleansing composition and leave it for 1 minute. Then 20 mL of purified water is added and stirred.
(2) The emulsified particle size of the mixed solution of (1) was measured with a laser diffraction type particle size distribution analyzer (Mastersizer 2000 manufactured by Malvern Instruments Ltd.).
The results are shown in FIG.
The volume average emulsion particle size when washing out the oily liquid cleansing composition of Comparative Example 1 is 630 nm, whereas the volume average emulsion particle size when washing out the oily liquid cleansing composition of Example 1 is 190 nm, It is finer than the comparative example. Moreover, as shown in FIG. 2, the distribution of the emulsified particle diameter when a large amount of water is added to Example 1 is narrow. Therefore, the oily liquid cleansing composition of Example 1 can be washed away and is excellent in washing performance.

<Evaluation Test 3: Usability (Sensory Test)>
Thirty-three panelists evaluated cleansing power with the face and hands wet, ease of washing, and spread during application. Using Comparative Example 1 as a reference, Example 1 was evaluated according to the following criteria.
5 points: very excellent 4 points: excellent 3 points: equivalent 2 points: inferior 1 point: very inferior The results are shown in Table 4.

  Example 1 was superior to Comparative Example 1 in terms of “cleansing power when the face and hands were wet” and “easy to wash away”, and “extended upon application”.

<Evaluation test 4: Comparison with commercial products>
A commercially available oily liquid cleansing composition that can be used even in a wet state was used as Comparative Examples 2 and 3, and the cleansing power when 120% purified water was added was compared with Example 1. The cleansing force was carried out by the method of Evaluation Test 1. The results are shown in Table 5.
The main compounding components of Comparative Examples 2 and 3 are shown below.

[Comparative Example 2]
Liquid paraffin, PEG (8) glyceryl isostearate, cetyl octanoate, cyclodimethylpolysiloxane, isostearic acid, glycerin, water

[Comparative Example 3]
Liquid paraffin, cyclodimethylpolysiloxane, PEG laurate (12), water, isopropyl palmitate, diglyceryl monoisostearate, polyethylene glycol tridecyl ether

  Compared with the commercial products of Comparative Example 2 and Comparative Example 3, the water resistance of Example 1 is remarkably superior.

Formulation Example 1
Ingredient Amount (% by mass)
Polyglyceryl-15 heptaisononanoate 10
Polyoxyethylene glyceryl triisostearate 15
Octyldodecanol 4.5
Glyceryl tri-2-ethylhexanoate 28.99
Propylene glycol diisononanoate 30
Cyclohexasiloxane 10
Rice bran oil 1
(Behenic acid / eicosanedioic acid) glyceryl 0.5
Stearyl glycyrrhetinate 0.01

Formulation Example 2
Ingredient Amount (% by mass)
Nonaisononanoic acid polyglyceryl-25 15
Decaglycerin diisostearate 15
Squalane 10
Olive oil 10
Di-2-ethylhexanoic acid 1,3-butylene glycol 42.99
Cyclohexasiloxane 5
Rice bran oil 1
Isostearic acid trehalose esters 0.5
Inulin stearate 0.5
Stearyl glycyrrhetinate 0.01

Formulation Example 3
Ingredient Amount (% by mass)
Octaisononanoic acid polyglyceryl-20 8
Decaglycerin diisostearate 12
Cetyl 2-ethylhexanoate 55.79
Diisononanoic acid 1,3-butylene glycol 15
Cyclohexasiloxane 7
Rice bran oil 2
(Palmitic acid / octanoic acid) dextrin 0.2
Stearyl glycyrrhetinate 0.01

Formulation Example 4
Ingredient Amount (% by mass)
Polyglyceryl-15 octanononanoate-6
Polyisoethylene stearate polyoxyethylene glyceryl 12
Propylene glycol dicaprylate 40
Cetyl 2-ethylhexanoate 32.69
Methylphenylpolysiloxane 3
Cyclopentasiloxane 4
Rice bran oil 0.5
Isostearic acid trehalose esters 0.1
Inulin stearate 0.5
(Behenic acid / eicosanedioic acid) glyceryl 1.2
Stearyl glycyrrhetinate 0.01

Formulation Example 5
Ingredient Amount (% by mass)
Polyglyceryl-25 octanononanoate 4
Decaglycerin diisostearate 10
Diisononanoic acid 1,3-butylene glycol 40
Cetyl 2-ethylhexanoate 28.29
Olive oil 10
Methylphenyl polysiloxane 1
Cyclohexasiloxane 5
Rice bran oil 1
Dextrin palmitate 0.2
Inulin stearate 0.5
Stearyl glycyrrhetinate 0.01

Graph showing cleansing force change when water is added Graph showing particle size distribution of emulsified particles during washing

Claims (2)

  An oily liquid cleansing composition comprising polyglyceryl isononanoate and a liquid or pasty oil at 25 ° C.   The composition for oily liquid cleansing according to claim 1, wherein the degree of esterification of isononanoic acid of polyglyceryl isononanoate is 7 to 10, and the degree of polymerization of polyglycerin residue is 15 to 25.