JP2020158458A - Foam cleansing cosmetics - Google Patents

Abstract

To provide foam cleansing cosmetics, which has a good ejecting and foaming properties from an aerosol container, the resulting foam elasticity, fineness, durability, cleansing power when used as a cleansing cosmetic, and provide any feeling of left residue (sliminess) on the skin after washing.SOLUTION: Foam cleansing cosmetics contain 5 to 15 mass% of A, in which a mass ratio of A: B is 5: 1 to 1: 2 and which contains A to D: (A) diphenylsiloxyphenyltrimethicone, (B) one or two or more selected from glycerin, diglycerin and polyglycerin, (C) hydrophilic surfactant, and (D) Oil.SELECTED DRAWING: None

Description

The present invention relates to a cleansing cosmetic that forms a foam when discharged from a container.

Cleansing cosmetics containing a large amount of oily ingredients are used to remove stains on the skin and cosmetics. Cleansing cosmetics are offered in various forms.
Foam-like cosmetics, which are made by aerosolizing an oil-based composition with a propellant into a foam, are difficult to drip because they are foam-like, and an appropriate amount can be taken out by hand and easily applied to the skin and hair. It is applied to cleansing cosmetics.
In the foamy cleansing cosmetics, the oil content becomes foamy by aerosolizing the composition obtained by adding the surfactant to the oil content together with the volatile propellant. As a surfactant used together with oil, polyglycerin fatty acid ester is first selected because it has good foaming property and foam durability when it is aerosolized, and the technology of foam cosmetics containing polyglycerin fatty acid ester has been adopted. Many are disclosed (for example, Patent Document 1 and Patent Document 2).

Oil-based massage cosmetics, facial mask cosmetics, and cleansing cosmetics are all formulations that need to be wiped off or washed off after being applied to the skin. However, in recent years, the type of these preparations that is washed away is becoming mainstream. In addition, there is a tendency for cosmetics that have been washed off to have a refreshing feel without leaving a feeling of residue on the skin.

A technique for cleansing cosmetics in the form of a foam aerosol using a lipophilic and hydrophilic polyglycerin fatty acid ester in combination is known for the purpose of improving the foam quality and the ability to remove water-based stains (Patent Document 3). This technique is a technique for foaming an emulsified composition, which requires the addition of water, and the cleansing power is not always sufficient. In general, it is said that cleansing cosmetics containing oily ingredients that do not substantially contain water are more familiar with oily makeup stains and have better cleansing power than cleansing cosmetics containing water. ..

As a cleansing cosmetic excellent for removing oily makeup, Patent Document 4 discloses an aerosol-type cleansing cosmetic containing 60 to 95% by mass of liquid oil and 2 to 40% by mass of (B) hydrophilic surfactant. There is.
The applicant also has (A) a liquid oil, (B) a polyglycerin fatty acid ester in which a fatty acid having 6 to 18 carbon atoms and a polyglycerin having an average degree of polymerization of 2 or more and 6 or less are esterified, and (C) one of the hydroxyl groups. We have proposed and obtained a patent for foam cosmetics containing a liquid decaglycerin fatty acid ester in which ~ 3 sites are not acylated (Patent Document 5).
Further, Patent Document 6 discloses a cleansing agent which is a composition for an aerosol containing a polyhydric alcohol and which does not cause liquid dripping on the coated surface and has an excellent usability.
As described above, various foam-like cleansing cosmetics have been proposed, but none of them are fully satisfactory. Further excellent foam-like cleansing cosmetics are desired. Specifically, they have good ejection properties and foaming properties when aerosolized, and have excellent foam elasticity, fineness, and foam durability, and cleansing. It is required to have cleansing power when used as a cosmetic and no residual feeling (slimy) on the skin after rinsing.

JP-A-2002-241745 Japanese Unexamined Patent Publication No. 2004-250355 Japanese Unexamined Patent Publication No. 2005-325038 Japanese Unexamined Patent Publication No. 2014-201523 Japanese Patent No. 6026312 Japanese Unexamined Patent Publication No. 06-400144

The present invention has good ejection properties and foaming properties from an aerosol container, and has good foam elasticity, fineness of foam, and long-lasting foam, and further, cleansing power when used as a cleansing cosmetic. An object of the present invention is to provide a foamy cleansing cosmetic that does not leave a feeling of residue (slimy) on the skin after being washed away.

The main configuration of the present invention is as follows.
(1) A foamy cleansing cosmetic containing A to D containing 5 to 15% by mass of A and having a mass ratio of A: B of 5: 1 to 1: 2.
(A) Diphenylsiloxyphenyltrimethicone (B) One or more selected from glycerin, diglycerin and polyglycerin (C) Hydrophilic surfactant (D) Oil agent (2) (D) Oil agent is triethylhexa The foamy cleansing cosmetic according to (1), which contains noin and / or cetyl ethylhexanoate.
(3) The foamy cleansing cosmetic according to (1) or (2), wherein the (C) hydrophilic surfactant has an HLB value of 10 to 15.
(4) The foamy cleansing cosmetic according to any one of (1) to (3), which does not contain a thickener.

The foamy cleansing cosmetic provided by the present invention has good foam ejection property and foam property from the injection container, excellent foam elasticity, fineness, and foam durability, and has a cleansing function for removing makeup stains. It is a foamy cleansing cosmetic that has high cleansing properties, good cleansing properties, cleansing power when used as a cleansing cosmetic, and no residual feeling (slimy) on the skin after washing. The foamy cleansing cosmetic of the present invention is used by filling it in an injection container and sprayed to obtain a foamy cleansing cosmetic. The discharged foam is a fine and highly elastic high-quality foam for cleansing. Since it can maintain the foam state for a long time during the action, it does not drip from the skin during cleansing and is easy to use. By adopting the configuration of the present invention, a cleansing agent having excellent usability can be obtained without adding a thickener that is added to prevent the so-called liquid oil-based cleansing agent from dripping.

In the specification of the present application, the term "foam-like cleansing cosmetics" refers to liquid cleansing cosmetics (undiluted solution for obtaining foam-like cleansing cosmetics, hereinafter referred to as liquid cleansing cosmetics, unless otherwise specified. However, it refers to a case where the liquid is discharged from the filled container to the outside of the container by a propellant and takes a foamy form containing an aerosol as a propellant. In addition, as a basis for indicating the content of each component of foamy cleansing cosmetics, when indicating the total amount of cleansing cosmetics, the cleansing cosmetics shall have the total mass except for the propellant (gas component at normal temperature and pressure). Shown.
The compounding components of the present invention will be described below.

<Indispensable ingredients>
(A): Diphenylsiloxyphenyltrimethicone The foamy cleansing cosmetic of the present invention contains diphenylsiloxyphenyltrimethicone as an essential ingredient. Diphenylsiloxyphenyltrimethicone is a silicon having a phenyl group added to a silicon base to improve viscosity and emollientity. The foamy cleansing cosmetic of the present invention preferably contains 5 to 15% by mass, more preferably 5 to 10% by mass of diphenylsiloxyphenyl trimeticone with respect to the total amount of the foamy cleansing cosmetic.

(B) Glycerin, Diglycerin, Polyglycerin The cleansing cosmetic of the present invention contains one or more substances selected from glycerin, diglycerin and polyglycerin as a second essential ingredient. As the polyglycerin, those having an average degree of polymerization of 3 to 10 are preferable, and polyglycerin-3 is particularly preferable. In the foamy cleansing cosmetics of the present invention, the B components may be blended individually or in combination. When blended in combination, the total amount is defined as the blending amount of component B. The blending amount (total blending amount) of glycerin, diglycerin, and polyglycerin is determined according to the blending amount of (A) diphenylsiloxyphenyl trimeticone. The blending amount of the component (B), glycerin, diglycerin, and polyglycerin, is the blending ratio of the A component and the B component contained in the foam cleansing cosmetic, and A: B is 5: 1 to 1 in mass ratio. It is preferably blended so as to be: 2, and more preferably blended so as to be 5: 4 to 1: 2.

(C) Hydrophilic Surfactant The cleansing cosmetic of the present invention contains a hydrophilic surfactant. Hydrophilic surfactants are added to achieve a refreshing finish when rinsed with water after cleansing. For the purpose of the hydrophilic surfactant used in the present invention, it is preferable to blend one having an HLB value of 10 to 15. Specifically, polyoxyethylene glyceryl monoisostearate (30EO) (HLB15.0), polyoxyethylene glyceryl triisostearate (20EO) (HLB10.4), polyglyceryl stearate-10 (HLB12.0), isostearic acid. Polyglyceryl-10 (HLB14.0), polyglyceryl-10 diisostearate (HLB11.1), polyglyceryl dicaprate-6 (HLB10.2), polysorbate 60 (HLB14.9), PEG-20 sorbitan isostearate (HLB15.0) Etc. can be exemplified. Polyglyceryl-10 diisostearate, polyglyceryl dicaprate-6, and PEG-20 sorbitan isostearate are particularly preferred.
The blending amount of the hydrophilic surfactant is 10 to 30% by mass, preferably 15 to 25% by mass, particularly preferably 15 to 22% by mass, based on the total amount of the cleansing cosmetic.

(D): Oil agent As the oil agent used in the cleansing cosmetics of the present invention, any oily component usually used in cosmetics can be used. Of these, liquid oil is preferable. The liquid oil referred to in the present invention may be any oil that is liquid at room temperature (25 ° C.) and is used for cosmetics. Further, solid oil, paste-like oil, and semi-paste-like oil may be blended as long as they dissolve in the components to be blended at the same time and become liquid. Examples of the oil agent used in the present invention include triglycerides, monovalent fatty acid esters of monovalent fatty acids and monohydric alcohols (hereinafter referred to as ester oils), liquid waxes, hydrocarbon oils, higher fatty acids, higher alcohols and the like. Can be mentioned.
Triglycerides include olive oil, macadamia nut oil, sunflower seed oil, avocado oil, safflower oil, rice bran oil, rice germ oil, wheat germ oil, sunflower oil, grape seed oil, almond oil, coconut oil, palm oil, and birds (capril / Capric acid) glyceryl, glyceryl tri2-ethylhexanoate (triglyceride of 2-ethylhexanoic acid and glycerin), etc., jojoba oil as liquid wax, liquid paraffin, squalane, etc. as hydrocarbon oil, isostearic acid as higher fatty acid , Oleic acid and the like, octyldodecanol, oleyl alcohol and the like are preferably mentioned as higher alcohols.
Examples of the ester oil include octyl isononanoate, isononyl isononanoate, isopropyl myristate, isodecil isononanoate, isopropyl palmitate, octyl palmitate, hexyl laurate, octyl isopalmitate, isosetyl octanoate, isopropyl isostearate, and ethyl isostearate. , Cetyl isooctanoate (cetyl ethylhexanoate), stearyl octanate, isostearyl octanate and the like. In particular, triglyceride is preferably used in the present invention because it easily foams in the oil preparation. In addition, ester oil is preferably used in the present invention because it easily blends with makeup stains and enhances cleansing power. A combination of triglyceride and ester oil is preferable because it facilitates the realization of a foamy cleansing cosmetic having both foaming and cleansing power. The total amount of the oil is preferably 55 to 80% by mass in the total amount of the cleansing cosmetics excluding the propellant. For example, when glyceryl triethylhexanoate (triethylhexanoin) is selected as the triglyceride and cetyl ethylhexanoate is selected as the ester oil and blended in combination, triethylhexanoin is 0 in the total amount of cleansing cosmetics excluding the propellant. It is particularly preferable to add ~ 25% by mass, preferably 5 to 22% by mass, and 45 to 80% by mass of cetyl ethylhexanoate.

(E); Propellant The foamy cleansing cosmetic of the present invention changes from a liquid to a foamy (foaming cleansing cosmetic) by filling it in a container and discharging it. It is preferable to fill the container with the propellant.
The propellant used in the present invention includes chlorofluorocarbons such as trichlorofluoromethane, dichlorodifluoromethane, dichlorofluoromethane, trichlorotrifluoromethane, and dichlorotetrafluoromethane; propane, isobutane, isopentane, normal butane, liquefied petroleum gas (LPG), etc. Liquefied gas, carbon dioxide gas, nitrogen gas and the like can be mentioned. The LPG is not particularly limited as long as it is generally used for cosmetics such as a mixture of propane and butane. Considering the safety and hypoallergenicity when the foamy cleansing cosmetic is applied to the skin, it is preferable to use carbon dioxide gas. The propellant can be used alone or in combination of two or more.

The foamy cleansing cosmetic of the present invention can be produced according to a conventional method. That is, it can be obtained by appropriately heating all the compounding components, stirring and mixing them, and cooling to room temperature.
In order to foam the foamy cleansing cosmetic of the present invention, a propellant can be further blended and filled in a jetable container to produce the foamy cleansing cosmetic according to a conventional method. For example, it can be produced by putting a liquid-adjusted cleansing cosmetic in an aerosol container such as an aerosol can, a PET resin container, or a pressure-resistant glass container, and filling the container with a propellant.

The mixing ratio of the foamy cleansing cosmetic and the propellant in the case of foaming the foamy cleansing cosmetic of the present invention is not particularly limited, but the foaming cleansing cosmetic composition: the propellant blending ratio ( The mass ratio) is preferably in the range of 70:30 to 98: 2. Within this range, foaming of the foamy cleansing cosmetic of the present invention is sufficiently performed. Foam cleansing cosmetic composition: When the blending ratio (mass ratio) of the propellant deviates from 98: 2 and the blending amount of the propellant is less than 2% by mass, good foaming is unlikely to occur, which is preferable for foam cleansing. It may be difficult to obtain cosmetics.

<Arbitrary ingredient>
In the foamy cleansing cosmetics of the present invention, various raw materials commonly used in cosmetics can be blended as optional ingredients within a range that does not impair the effects of the present invention.
For example, moisturizers, preservatives, fragrances and the like can be blended. Further, a surfactant other than the component (C) essential in the present invention can also be blended within a range that does not affect the effect of the present invention. For example, polyglyceryl-2 isostearate (HLB5.5) is a lipophilic surfactant, but it may be blended as long as the mixed HLB value of all the surfactants to be blended is in the range of 10 to 15. ..

In the present invention, in order to sufficiently exert the cleansing effect, it is preferable that water is not contained or the amount of water added is as small as possible. It is not limited to be contained as needed, such as when water is used as a solvent for a solid water-soluble component.

Examples and comparative examples are shown below, and the present invention will be specifically described.
(1) Preparation of foamy cleansing cosmetics (cleansing cosmetics before filling in an aerosol container) Foams of Examples 1 to 12 with the compositions shown in Table 1 and Comparative Examples 1 to 10 with the compositions shown in Table 2. A cosmetic for cleansing was prepared.
In the following, foamy cleansing cosmetics refer to foamy compositions discharged from a container, and are distinguished from foamy cleansing cosmetics (cleansing cosmetics before filling in an aerosol container). There is. Foam-like cleansing cosmetics may be simply referred to as cleansing cosmetics.
-Preparation method One or more selected from (A) diphenylsiloxyphenyl trimeticone, (B) glycerin, diglycerin, polyglycerin, (C) hydrophilic surfactant, (D) oil at 80 ° C or higher. To prepare a foamy cleansing cosmetic (stock solution), the mixture was uniformly dissolved and then cooled with stirring.
Next, this foamy cleansing cosmetic was filled in a container together with the propellant (E). Carbon dioxide was used as the propellant, and the aerosol container was filled so that the blending ratio of the foamy cleansing cosmetic and the propellant was 97: 3 by mass.

(2) Evaluation of Foam Cleansing Cosmetic The foam cleansing cosmetic of the present invention has excellent foam ejection properties, foam elasticity, fineness of foam, and foam durability, and has a high cleansing function for removing makeup stains, and can be washed away. It is a foamy cleansing cosmetic that does not leave a feeling of residue (slimy) on the skin after it has been removed.
The evaluation items and evaluation criteria are as follows.

<1> Foam persistence 3 g of foam was ejected from an aerosol container into a beaker having a capacity of 30 mL to form foam, and the time until the volume of foam became 1/3 was measured and used as the duration of foam.
The evaluation criteria are as follows.
⊚: 6 minutes or more 〇: 4 minutes or more and less than 6 minutes Δ: 2 minutes or more and less than 4 minutes ×: less than 2 minutes

<2> Usability evaluation Ten sensory evaluators visually evaluated the evaluation items [discharge property, fineness of foam, elasticity of foam (foam elasticity)] according to the following evaluation criteria. The table shows the evaluations decided by the consultation of 10 people.
The evaluation was performed by discharging the amount of each foam-like cleansing cosmetic to the palm to the size of one ping-pong ball.

1) Dischargeability (evaluation standard)
〇: Foam is continuously foamed ×: Foam is not continuously foamed and is foamed as if it is clogged

2) Fineness of foam (evaluation criteria)
〇: Fine foam texture ×: Coarse foam texture

3) Foam elasticity (evaluation criteria)
1 point: very bad
2 points: bad 3 points: normal 4 points: good 5 points: very good
Regarding the elasticity of the foam, the average score of the scores of 10 sensory evaluators was calculated, and the judgments of ◎ to × were added according to the following criteria and described in the table.
×: 1 to 2.0 points Δ: 2.1 to 3.0 points ○: 3.1 to 4.0 points ◎: 4.1 to 5.0 points

<3> Evaluation of cleansing power Ten sensory evaluators applied an appropriate amount of lipstick to the inner part of the forearm, dried it for 30 minutes, and then discharged a fixed amount of foamy cleansing cosmetics (the size of one ping-pong ball). I rubbed it with my finger in a circular motion 30 times and dropped the lipstick. Next, while applying running water to the cleansing site, the skin was washed off by gently rubbing it with a finger three times, and the skin condition after washing was visually confirmed. The evaluation criteria are as follows.
○: Lipstick is completely removed ×: There are traces of lipstick

<4> Evaluation of washability A sensory evaluator discharges a fixed amount of foamy cleansing cosmetics (the size of one ping-pong ball) on the inside of the forearm and rubs it with a finger in a circular motion 30 times. Familiarize. Next, the skin was washed off by gently rubbing it with a finger three times while applying running water, and the feel of the skin after the washing was evaluated by touching it with a finger. The evaluation criteria are as follows.
○: No oily slimy feeling △: Slightly oily slimy feeling
×: Feels oily slimy

(3) Evaluation Results of Foam Cleansing Cosmetics From the evaluation of Example 1, Example 3, and Example 12, foam cleansing containing glycerin, diglycerin, and polyglycerin-3 in the A component and the B component is foam. It was found that the durability, ejection property, fineness of foam, elasticity of foam, and washability were good. On the other hand, it was found that in Comparative Example 8 in which the component A was contained but the component B was not contained and 3% of water was added instead of the component B, the foam ejection property was deteriorated and the elasticity of the foam was also deteriorated. Further, in Comparative Examples 9 and 10 in which dipropylene glycol (DPG) and pentanediol, which are similar components, were blended in place of the B component, the foam durability, ejection property, fineness, and foam elasticity deteriorated, and the foam was washed away. It turned out that the sex also got worse.

From the comparison between Example 8 and Comparative Example 4, the ejection property, the fineness of the foam, and the elasticity of the foam could not be improved only by blending the B component, and the A component (diphenylsiloxyphenyl trimeticone) and the B component were combined and blended. It was found that the discharge property, the fineness of the foam, and the elasticity of the foam were improved.

From the comparison between Example 7 and Comparative Examples 6 to 7, it was found that the foamy cleansing cosmetic containing diphenylsiloxyphenyl trimeticone as the A component has good foam durability, fineness and elasticity. .. On the other hand, even if the same silicon-based compounds dimethicone and cyclopentasiloxane are added instead of diphenylsiloxyphenyltrimethicone, the effects of improving foam persistence, fineness, and foam elasticity cannot be obtained. I found out.

From the comparison between Examples 1 to 12 and Comparative Example 5, the blending amount of the component A (diphenylsiloxyphenyl trimeticone) is within the range of 5 to 15% by mass, and the blending ratio with the component B (glycerin, diglycerin) is. When A: B = 5: 1 to 1: 2, it was found that the durability of the foam, the elasticity of the foam, and the like were all improved. The blending amount of the A component (diphenylsiloxyphenyl trimeticone) is 3% by mass, the blending amount of the B component (glycerin) is 3% by mass, and the blending ratio of A and B is A: B = 1: 1. In Comparative Example 5, the bubble elasticity was evaluated as Δ, which indicates that the average score of 10 sensory evaluators did not reach the “normal” level, and in the present invention, the blending amount of the component A and the component A were used. It was found that the ratio of B component is important.

As described above, it contains (A) one or more selected from (A) diphenylsiloxyphenyl trimeticone, (B) glycerin, diglycerin and polyglycerin, (C) a hydrophilic surfactant, and (D) an oil agent. The foamy cleansing cosmetic containing 5 to 15% by mass of (A) and having A: B of 5: 1 to 1: 2 has good discharge property from the aerosol container, and the resulting foam elasticity and texture. The fineness is good, the foam lasts well, the cleansing power when used as a cleansing cosmetic, and there is no residual feeling (slimy) on the skin after rinsing.

Claims (4)

A foamy cleansing cosmetic containing 5 to 15% by mass of A and having a mass ratio of A: B of 5: 1 to 1: 2.
(A) Diphenylsiloxyphenyltrimethicone (B) One or more selected from glycerin, diglycerin and polyglycerin (C) Hydrophilic surfactant (D) Oil (D) The foamy cleansing cosmetic according to claim 1, wherein the oil agent contains triethylhexanoin and / or cetyl ethylhexanoate. (C) The foamy cleansing cosmetic according to claim 1 or 2, wherein the hydrophilic surfactant has an HLB value of 10 to 15. The foamy cleansing cosmetic according to any one of claims 1 to 3, which does not contain a thickener.