JPH07216386A - Detergent composition - Google Patents

Abstract

PURPOSE:To obtain a detergent compsn. which has not only capability to clean a make-up but also a foaming power and gives the skin washed with it a refreshed feeling by combining a polyoxyethylene monoester with a specific surfactant. CONSTITUTION:This detergent compsn. contains a polyoxyethylene monoester of the formula: RCOO-(C2H4O)n-H (wherein R is a higher aliph. hydrocarbon group; and(n) is 3-14)(pref. a monoisostearate and/or monooleate) and an amphoteric and/or a semipolar surfactant (e.g. one of a betaine. amidobetaine, aminocarboxylic acid. imidazolinium, or tert-amine oxide type). Usually the wt. ratio of the monoester to the surfactant is (2:1)-(1:8); the sum of their contents in the compsn. is 1-80wt.%.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to detergent compositions, and more particularly to improving their 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, a person who has applied a makeup cosmetic containing oils such as lipstick, foundation, mascara, and eye shadow should first make a cleansing cream containing a large amount of oil that is easy to blend in with the makeup cosmetics as a first step 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 etc. 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] In this way, two-step washing is required when using a makeup remover cream or the like containing a large amount of oil, even after rinsing with water or lukewarm water immediately after use, the oil remaining on the skin 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 action are being demanded, a detergent composition having both a makeup removing effect and a bare skin washing effect such as a refreshing feeling and a refreshing feeling with only one operation is desired. It is rare. As such a one-step cleaning composition, for example, JP-A-63-12
Some are disclosed in Japanese Patent No. 2618.

[0005]

However, the conventionally known one-step makeup remover cleansing agent is 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.

[0006] That is, it is desired to develop a cleansing agent that can make makeup to be foamed at the same time as it can be foamed to give a refreshing feeling of bare skin washing. It must contain a large amount of oil and oily components, while soaps and cleansing foams that foam and give a refreshing feeling are basically ionic surfactants with high hydrophilicity. Since it is a main component, even if you try to combine both of these ingredients to obtain both effects, in fact they will cancel each other out, and almost no bubbles will form, and the effect of removing makeup will also be impaired. The current situation is that we are not satisfied with what we get.

The present invention has been made in view of the above-mentioned problems of the prior art, and an object thereof is to provide a cleaning composition which is excellent in usability and feeling in use and has a high cleaning effect.

[0008]

Means for Solving the Problems As a result of intensive studies for solving the above problems, the present inventor has combined a polyoxyethylene monoester with an amphoteric surfactant and / or a semipolar surfactant. As a result, it was found that a detergent composition having a foaming function in addition to a makeup removing function and a refreshing feeling of bare skin can be obtained, and the present invention has been completed.

That is, the detergent composition according to claim 1 of the present application contains a polyoxyethylene monoester represented by the general formula 2 and an amphoteric surfactant and / or a semipolar surfactant. Characterize.

Embedded image RCOO— (C ₂ H ₄ O) _n —H (wherein R is a saturated or unsaturated higher aliphatic hydrocarbon group,
n is an integer of 3-14. )

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 2 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 2, R 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. Considering it, an isostearyl group or an oleyl group is preferable. As the amphoteric surfactant and semipolar surfactant used together with the polyoxyethylene monoester, those generally used as cosmetic bases can be adopted. Specifically, betaine type (carboxybetaine, sulfobetaine), amidobetaine type, aminocarboxylic acid type, imidazolinium derivative type,
Examples include tertiary amine oxide type semipolar surfactants and the like. In the present invention, one or more of these amphoteric surfactants and semipolar surfactants can be optionally used.

In the present invention, the mixing ratio of the polyoxyethylene monoester and the amphoteric surfactant and / or the semipolar surfactant is 2: 1 to 1: 8 by weight, preferably 1: 1 to 1: 1. : 8, and the total amount of both is
It is in the range of 1 to 80% by weight based on the total amount of the cleaning agent. With a blending ratio outside this range, foaming is not sufficient when the polyoxyethylene monoester is too large, and makeup is difficult to adapt to when the amphoteric surfactant or semipolar surfactant is too large, in any case. Satisfactory results cannot be obtained.

In addition to the above-mentioned essential constituents, the detergent composition according to the present invention may contain, if necessary, ingredients generally incorporated in detergents, cosmetics and the like. 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, thickeners and moisturizers. Examples include agents, preservatives, bactericides, ultraviolet absorbers, chelating agents, antioxidants, and fragrances.

As described above, the cleaning composition of the present invention is
By coexisting polyoxyethylene monoester and amphoteric surfactant and / or semipolar surfactant, make-up cosmetics such as lipstick, foundation, mascara and eye shadow can be removed well, and at the same time water is added. Can be bubbled by.

[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 having a diameter of 2 cm to absorb the amount of 2-ethylhexyl paramethoxycinnamic acid in ethanol by ultraviolet absorption (310 nm). )
The makeup removing effect was determined by measuring from. 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: eluate after washing Absorption evaluation of ○: Good make-up removal effect Cleaning efficiency 90% or more △: Make-up removal effect Normal Cleaning efficiency 60% or more ×: Poor make-up removal effect Cleaning efficiency 60% Satisfied

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 ◎: Very good foaming, foam volume 1500 m1 or more ○: Good foaming, foam volume 1200 m1 or more △: Normal foaming, foam volume 800 m1 or more ×: Poor foaming, foam volume 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 Cocoyl amidoploupyl betaine 0 2 5 7 10 13 15 18 20 Total surfactant 20 ───────────────────────────── ─────── Remaining purified water ─────────────────────────────────── Makeup remover ○ ○ ○ ○ ○ ○ ○ △ × Foamability × × △ ○ ◎ ◎ ◎ ◎ ◎ ◎ ◎ Refreshing × × × ○ ○ ○ ○ ○ ○ ──────────────────── ───────────────

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, the amphoteric surfactant (cocoylamidopropyl betaine) alone has excellent foaming properties and a refreshing feeling, but lacks a makeup removing effect. In the coexistence system of polyoxyethylene monoester and amphoteric surfactant, the compounding ratio thereof is 2: 1 to 1: 8 by weight ratio, preferably 1: 1 to 1: 1.
When it is 1: 8, both excellent makeup removing effect and usability can be exhibited.

[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-Cocoylamidoprophylobetaine 10 10 10 10 10 10 ───────────────────────────── Purified water balance ────────────────── ──────────────── Makeup removal effect △ ○ ○ ○ △ Foamability × ◎ ◎ ◎ ◎ ○ 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. Next, various formulation examples were verified.

[0025]

[Table 3] ─────────────────────────────────── Test product 15 16 17 18 18 19 20 21 ── ───────────────────────────────── Polyoxyethylene monoester Polyoxyethylene (10) Monooleate 2 5 6 12 4 -Polyoxyethylene (12) monoisostearate-----6-Polyoxyethylene (8) monolaurate------5 ───────────────── ─────────────────── Amphoteric surfactant and / or semipolar surfactant Cocoyl amidoploprobetaine 5-2----2-Cocoyl-N-carboxymethyl -N- Human oxyethylimidazolinium betaine--5--6-N-lauryl human oxysulfobetaine 5 10-12 32 10 10 ────────────────────────────────── Other 1,3-butanediol 10 8 10-10--Purified water Residual ─────────────────────────────────── Makeup remover effect ○ ○ ○ ○ ○ ○ △ Foaming property ◎ ◎ ○ ○ ◎ ◎ ◎ ◎ Refreshing ○ ○ ○ ○ ○ ○ ○ ────────────────────────────────── ─

As described above, various polyoxyethylene monoesters and various amphoteric surfactants and / or semipolar surfactants have a synergistic effect. Particularly, polyoxyethylene monoesters are monoisostearate and / or Or it is understood that it is preferable that it is monooleate.

Example 1 (1) Polyoxyethylene (12) monoisostearate 8% by weight (2) Betaine lauryldimethylacetate 10 (3) Sodium lauroylmethyltaurine 4 (4) Lauryldiethanolamide 2 (5) 1, 3-Butanediol 15 (6) Polyethylene glycol 1500 5 (7) Hydroxyethyl cellulose 2.5 (8) Perfume proper amount (9) Purified water Residual production method (5), (6), (7) Dissolve, (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) 2-Undecyl-N-carboxymethyl-N-human benzyloxyethyl imidazole Rinium Betint Sodium 3 (4) l, 3-Butanediol 10 (5) Sorbitol 8 (6) Methylcellulose 3 (7) Fragrance Suitable amount (8) Purified water Residual method (6) to (8). ) Was dissolved and (3), (4) and (5) were mixed, and then (1), (2) and (9) were added to obtain a gel makeup remover. 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.

[0029]

As described above, the detergent composition according to the present invention has the effect of removing makeup by coexisting a polyoxyethylene monoester and an amphoteric surfactant and / or a semipolar surfactant. At the same time, it can be foamed by adding water and gives a refreshing feel to the skin after use.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kiyoshi Miyazawa 1050 Shinba-cho, Kohoku-ku, Yokohama-shi, Kanagawa Prefecture Shiseido Daiichi Research Center

Claims (2)

[Claims] 1. A detergent composition comprising a polyoxyethylene monoester represented by the general formula 1 and an amphoteric surfactant and / or a semipolar surfactant. Embedded image RCOO— (C ₂ H ₄ O) _n —H (wherein R is a saturated or unsaturated higher aliphatic hydrocarbon group,
n is an integer of 3-14. ) 2. The cleaning composition according to claim 1, wherein
The cleaning composition, wherein the polyoxyethylene monoester is polyoxyethylene monoisostearate and / or polyoxyethylene monooleate.