JPH07291828A - Make-up cleansing agent - Google Patents

Abstract

PURPOSE:To obtain a make-up cleansing agent having frothing function in addition to make-up cleansing function and giving refreshing feeling to the cleaned skin by combining a polyoxyethylene monoester with a specific maltitol ether. CONSTITUTION:This make-up cleansing agent is produced by using a polyoxyethylene monoester of formula I (R1 is a saturated or unsaturated higher aliphatic hydrocarbon group; (n) is 3-14) in combination with a maltitol ether of formula II (A is residue produced by removing (a)-OH groups from maltitol; R2 and R3 each is H, an alkyl or an alkenyl; the total carbon number of R2 and R3 is 6-22; (a) is 1-3). The polyoxyethylene monoester is especially preferably polyoxyethylene monoisostearate or polyoxyethylene monooleate. The make-up cleansing agent has excellent usability and feeling to the skin and exhibits high cleansing effect. The compounding weight ratio of the polyoxyethylene monoester to the maltitol ether is preferably 2:1 to 1:8, especially 1:(1-8).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a makeup cleanser, and more particularly to improving its usability.

[0002]

2. Description of the Related Art A detergent composition, especially a facial cleanser,
It is necessary not only to wash away sebum and the like, but also to wash away various cosmetics and the like. For this reason, those who have applied makeup cosmetics containing oils such as lipsticks, foundations, mascaras, and eye shadows should first use a cleansing cream containing a large amount of oils that are easy to blend in with makeup cosmetics when washing the face. , Cleansing oil, cleansing milk, cleansing gel, etc., after removing most of the makeup components using a face cleanser for removing makeup, as the second step, soap and cleansing foam are bubbled to wash the bare skin, The residual oil content of the makeup remover cleaning agent used in the first step
By washing away the oil and dirt on the skin, I was satisfied with a refreshing or refreshing feeling.

[0003] As described above, the reason why two-step washing is required is that when a cream for removing makeup is used which contains a large amount of oil, the oil remaining on the skin can be immediately rinsed with water or lukewarm water after use. Is not sufficiently removed, and a refreshing feeling can not be obtained.Also, with a facial cleanser for bare skin washing such as soap or cleansing foam, which is used for foaming, a pigment covered with oil in makeup cosmetics This is because the coloring agent cannot be removed sufficiently from the skin.

On the other hand, in recent years, when quickness and simplicity of makeup are being demanded, a skin cleansing agent having a makeup removing effect and a cleansing and refreshing bare skin washing effect with only one operation is desired. ing. Examples of such a one-step skin cleansing agent include, for example, JP-A-63-1226.
Some are disclosed in Japanese Patent No. 18.

[0005]

However, the conventionally known one-step makeup remover cleaning agent is merely one in which the amount of oil remaining on the skin after rinsing is reduced, and soaps and cleansing foams are used. It was not possible to obtain the refreshing feeling and the satisfaction after washing the face obtained by washing the bare skin with bubbles. In other words, it is desirable to develop a cleansing agent that is capable of foaming at the same time as removing make-up, and that provides a refreshing feeling of bare skin washing. Oils and oily ingredients must be contained.On the other hand, detergents that give a feeling of foaming and refreshing, such as soap and cleansing foam, basically consist of ionic surfactants with high hydrophilicity. Therefore, even if you try to combine these ingredients to obtain both effects, in fact they will cancel each other out, not only almost no bubbles will be created, but also the effect of removing makeup will be impaired. The current situation is that we cannot get something satisfactory.

[0006] The present invention has been made in view of the above problems of the prior art, and an object thereof is to provide a makeup cleansing agent which is excellent in usability and feeling in use and has a high cleaning effect.

[0007]

Means for Solving the Problems As a result of intensive studies for solving the above problems, the present inventor has found that a combination of polyoxyethylene monoester and a specific maltitol ether has a makeup removing function. In addition, they have found that a makeup cleansing agent having a foaming function and giving a refreshing feeling of bare skin washing can be obtained, and completed the present invention.

That is, the makeup cleansing agent according to claim 1 of the present application is characterized by containing the polyoxyethylene monoester represented by the general formula 3 and the maltitol ether represented by the general formula 4. .

[Chemical 3] (In the formula, R ₁ is a saturated or unsaturated higher aliphatic hydrocarbon group, and n is an integer of 3 to 14.)

[0009]

[Chemical 4] (In the formula, A is a residue obtained by removing a hydroxyl groups from maltitol, R ₂ and R ₃ are a hydrogen atom, an alkyl group or an alkenyl group, and the total carbon number of R ₂ and R ₃ is 6 to 22. , A
Represents an integer of 1 to 3. )

In the present invention, the polyoxyethylene monoester is preferably polyoxyethylene monoisostearate and / or polyoxyethylene monooleate.

The structure of the present invention will be described in detail below. The average degree of polymerization of ethylene oxide of the polyoxyethylene monoester having the basic structure shown in Chemical Formula 3 used in the present invention is 3 to 14, and preferably 3 to 12. When the average degree of polymerization is lower than 3, foaming is insufficient, and when it is higher than 14, the effect of removing makeup is insufficient. Further, in the above Chemical Formula 3, R ₁ represents a saturated or unsaturated higher aliphatic hydrocarbon group, but considering that it is blended in a water-based detergent composition, and from the viewpoint of makeup cleaning effect, It is preferably an isostearyl group or an oleyl group. still,
In the present invention, one kind or two or more kinds of polyoxyethylene monoester can be used in combination.

The maltitol ether used together with the polyoxyethylene monoester can be represented by the general formula (4). In Chemical formula 4, A is a residue obtained by removing a hydroxyl groups from maltitol, and R ₂ and R ₃ are each a hydrogen atom, an alkyl group or an alkenyl group. Examples of the alkyl group or the alkenyl group include a methyl group, an ethyl group, an isopropyl group, an octyl group, a lauryl group, a myristyl group, a palmityl group, a stearyl group and 2-
Examples include ethylhexyl group, isostearyl group, oleyl group, palmitooleyl group, eicosenyl group,
From the viewpoints of cleanability and feeling of use, the total carbon number of R ₂ and R ₃ is preferably in the range of 6 to 22. Further, a represents an integer of 3 or less. When a is larger than 3, foaming is not sufficient. In the present invention, one or two or more of these maltitol ethers can be optionally used.

In the present invention, the blending ratio of polyoxyethylene monoester and maltitol ether is in the range of 2: 1 to 1: 8 by weight, preferably 1: 1 to 1: 8. The total blending amount is 1 to 8 in the total amount of the cleaning agent.
It is in the range of 0% by weight. If the blending ratio is outside this range, the foaming is not sufficient when the polyoxyethylene monoester is too much, and the makeup is difficult to fit when the maltitol ether is too much, and a satisfactory result cannot be obtained in any case. .

In addition to the above-mentioned essential constituents, the makeup cleansing composition according to the present invention may contain, if necessary, components that are generally contained in cleansing compositions and cosmetics. These components include polyhydric alcohols such as glycerin, 1,3-butanediol and propylene glycol, oils such as liquid paraffin and higher alcohols, anionic surfactants, cationic surfactants, amphoteric surfactants, Examples thereof include thickeners, moisturizers, preservatives, bactericides, ultraviolet absorbers, chelating agents, antioxidants, and fragrances.

As described above, the makeup cleansing agent of the present invention is
By coexisting polyoxyethylene monoester and maltitol ether, makeup cosmetics such as lipsticks, foundations, mascaras, and eye shadows can be satisfactorily dropped, and at the same time, it can be foamed by adding water.

[0016]

EXAMPLES The present invention will be specifically described below with reference to examples, but the present invention is not limited to these examples. Prior to the examples, the evaluation method used in each example will be described.

Test Method for Makeup Removing Effect 2-Ethylhexylparamethoxycinnamic acid was added to the oily foundation as a marker. 1% included 0.
1 g is evenly applied to the inner part of the forearm in an area of 4 × 10 cm, dried for 30 minutes, and 0.5 g of the test sample is applied to the entire application part for about 20 seconds using a finger as in a normal makeup removing action. No, then rinsed with 35 ° C tap water without rubbing. After drying, the foundation remaining in the coated part was eluted with 2 ml of ethanol using a glass cup with a diameter of 2 cm, and the amount of 2-ethylhexylparamethoxycinnamic acid in ethanol was measured by ultraviolet absorption (310 nm). By doing, the effect of removing makeup was sought.

The washing efficiency _{(%) = (A 2 -A} O) / (A 1 -A 0) × l00 A O: absorption of the eluate of the blank A _l: absorption of the eluate before cleaning A _2: after washing Absorption evaluation of eluate ○: Good make-up removal effect Cleaning efficiency 90% or more △: Makeup removal effect Normal Cleaning efficiency 60% or more X: Poor make-up removal effect Cleaning efficiency 60%

Foaming test method 40 ° C. in a cylindrical cylinder with a stirrer of 2500 m1 capacity
400 m1 of artificial hard water (70 ppm calcium carbonate) was added, and 40 g of the test sample and oil foundation O. After adding 1 g, the foam volume was measured after stirring at 4500 rpm for 1 minute. Evaluation ◯: Good foaming, foam volume of 1200 m1 or more △: Normal foaming, foam volume of 800 m1 or more ×: Poor foaming, foam volume of less than 800 m1

Sensory test (evaluation of refreshing feeling after use) Using each sample, 20 professional panelists conducted an actual use test for the presence or absence of a refreshing feeling on the skin after washing the face.
The evaluation method was based on the following criteria. O: 15 or more out of 20 professional panelists recognized that there was a refreshing feeling. Δ: 8 or more out of 20 professional panelists recognized that there was a refreshing feeling. X: 7 or less out of 20 professional panelists recognized that there was a refreshing feeling.

[0021]

[Table 1] ─────────────────────────────────── Test product 1 2 3 4 5 6 7 8 9 ─────────────────────────────────── Polyoxyethylene (6) Monoisostearate 20 18 15 13 10 7 5 20 Maltitol human oxydodedecyl ether 0 2 5 7 10 13 15 18 20 Total surfactant 20 ──────────────────────────── ──────── Remaining purified water ─────────────────────────────────── Makeup remover ○ ○ ○ ○ ○ ○ ○ ○ ○ × Foaming ability × × △ ○ ○ ○ ○ ○ ○ Refreshing feeling × × × △ ○ ○ ○ ○ ○ ──────────────────── ────────────────

As described above, while polyoxyethylene monoester (polyoxyethylene monoisostearate) alone has a relatively excellent makeup removing effect, it tends to lack foamability and a refreshing feeling. On the other hand, maltitol ether (maltitol hydroxydodecyl ether) alone has excellent foamability and a refreshing feeling, but lacks a makeup removing effect. And, in the coexisting system of polyoxyethylene monoester and maltitol ether, the mixing ratio thereof is 2: 1 to 1: 8 by weight ratio,
Preferably, 1: 1 to 1: 8 can exhibit both excellent makeup removing effect and usability.

[0023]

[Table 2] ───────────────────────────────── Test product 10 11 12 13 13 14 ─────── ─────────────────────────── Polyoxyethylene (1) Monooleate 10 − − − − Polyoxyethylene (3) Monooleate − 10 − − -Polyoxyethylene (6) monooleate--10-Porioxyethylene (14) monooleate--10-Polyoxyethylene (16) monooleate--10- Maltitol human doxydedecyl ether 10 10 10 10 10 10 --- ────────────────────────────── Purified water balance ──────────────── ───────────────── Makeup removal effect △ ○ ○ × Foaming ability × ○ ○ ○ ○ Refreshing feeling △ ○ ○ ○ ○ ───────────────────────────────── ─

As is clear from Table 2 above, the combination effect according to the present invention is specific to the polyoxyethylene monoester in which the average degree of polymerization of ethylene oxide in the polyoxyethylene monoester molecule is 3 to 14. This is a phenomenon that can be seen.

[0025]

[Table 3] ─────────────────────────────────── Test product 15 16 17 18 19 19 ──── ─────────────────────────────── Polyoxyethylene (8) Monoisostearate 10 10 10 10 10 Maltitol Human Doxyhexyl Ether 10 −−−− Maltitol human oxyoctyl ether − 10 −−− Maltitol human oxycetyl ether − − 10 − − Maltitol human oxybehenyl ether − − − 10 − maltitol human oxyhexacosyl ether − − − − 10 ─── ──────────────────────────────── Residue of purified water ─────────────── ────────────── ────── Makeup removing effect × ○ ○ ○ ○ Foaming ability × ○ ○ ○ × Refreshing feeling △ ○ ○ ○ × ────────────────────── ──────────────

As is clear from Table 3, the maltitol ether used in the present invention is preferably a maltitol ether in which the total number of carbon atoms of R ₂ and R _{3 in} the chemical formula 4 is 6 to 22. I understand.

Next, various formulation examples were verified.

[Table 4] ─────────────────────────────────── Test product 20 21 22 22 23 24 25 ─── ──────────────────────────────── Polyoxyethylene monoester Polyoxyethylene (10) Monooleate 2 5 6 4-- Polyoxyethylene (12) monoisostearate--6-6-Polyoxyethylene (8) monolaurate------5 ──────────────────── ──────────────── Maltitol ether Maltitol human oxymyristyl ether 5 10 12 32 15-Maltitol human oxydoxy decyl ether 5----15 ────────── ────────────────────────── Other 1,3-butanediol 10 8 10-10 10 Residue of water production ─────────────────────────────────── Makeup removing effect ○ ○ ○ ○ ○ △ Foaming Sex ○ ○ ○ ○ ○ ○ Freshness ○ ○ ○ ○ ○ ○ ────────────────────────────────────

As described above, various polyoxyethylene monoesters and various maltitol ethers have a synergistic effect, and it is understood that the polyoxyethylene monoester is preferably monoisostearate and / or monooleate. To be done.

Example 1 (1) Polyoxyethylene (12) monoisostearate 8% by weight (2) Lauryl dimethyl acetic acid betaine 10 (3) Maltitol hydroxymyristyl ether 4 (4) Lauryl diethanolamide 2 (5) 1 , 3-Butanediol 15 (6) Polyethylene glycol 1500 5 (7) Hydroxyethyl cellulose 2.5 (8) Perfume proper amount (9) Purified water balance

(5), (6) and (7) were dissolved in the production method (9) to obtain (2),
After mixing (3) and (4), (1) and (8) were added to obtain a gel makeup remover.

Example 2 (1) Polyoxyethylene (8) monooleate 5% by weight (2) Polyoxyethylene (8) monoisostearate 1 (3) Maltitol hydroxydodecyl ether 3 (4) 1,3-butane Diol 10 (5) Sorbitol 8 (6) Methylcellulose 3 (7) Perfume Appropriate amount (8) Purified water Residue

After dissolving (4) to (6) in the manufacturing method (8) and mixing (3), (1), (2) and (7) are added to the gel-like makeup removing detergent. Obtained. The gel-like makeup remover cleaning agents of Examples 1 and 2 were excellent in makeup removing effect and foaming property, and also had a very refreshing feeling after use.

[0033]

EFFECTS OF THE INVENTION As described above, the makeup cleansing agent according to the present invention is excellent in the effect of removing makeup by the coexistence of polyoxyethylene monoester and maltitol ether, and at the same time water is added. It can be foamed by giving a refreshing feel to the skin after use.

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification number Internal reference number FI technical display location C11D 1:68) (72) Inventor Kiyomiyazawa 1050 Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa Stock company Shiseido Daiichi Research Center

Claims (2)

[Claims] 1. A makeup cleanser comprising a polyoxyethylene monoester represented by the general formula 1 and maltitol ether represented by the general formula 2. [Chemical 1] (In the formula, R ₁ is a saturated or unsaturated higher aliphatic hydrocarbon group, and n is an integer of 3 to 14.) (In the formula, A is a residue obtained by removing a hydroxyl groups from maltitol, R ₂ and R ₃ are a hydrogen atom, an alkyl group or an alkenyl group, and the total carbon number of R ₂ and R ₃ is 6 to 22. , A
Represents an integer of 1 to 3. ) 2. The makeup cleansing agent according to claim 1,
A makeup cleansing agent, wherein the polyoxyethylene monoester is polyoxyethylene monoisostearate and / or polyoxyethylene monooleate.