JP2014062061A - Emulsified cleansing preparation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an emulsified cleansing preparation fitting well with a makeup cosmetic, being excellent in cleansing power and having less stickiness after washing-out.SOLUTION: By containing (A) polyoxyethylene coconut oil fatty acid glyceryl, (B) polyoxyethylene glyceryl triisostearate, (C) polyglyceryl stearate, (D) one or more kinds selected from hydrogenerated polyisobutene, isodecyl neopentanoate, isostearyl neopentanoate and 2-ethyl hexanoic acid cetyl, (E) one or more kinds selected from cetyl phosphate, acylalanine salts and N-stearoyl-L-glutamate, and (F) purified water, an emulsified cleansing preparation fits well with a makeup cosmetic, is excellent in cleansing power and has less stickiness after washing-out.

Description

The present invention relates to an emulsifying cleansing agent that is well-familiar with makeup cosmetics, has excellent cleansing power, and is less sticky after washing after use.

In general, cleansing materials for removing oily dirt and makeup cosmetics include O / W or W / O emulsion creams, gels, and liquids (aqueous and oily). It is used according to gender. A cream-like cleansing agent is an emulsified cosmetic comprising an oily component, a surfactant and water, and is called a so-called cleansing cream.

Cleansing cream contains an oily component and an aqueous component in a well-balanced manner, so it has a high moist feeling and good skin feel, but in the case of a W / O emulsion, the cleansing cream is an oil component. Although it is excellent in strength, it is difficult to remove the cosmetic after cleansing, and the oily component remains on the hands and face, so the feeling of use is not preferable.
In the case of an O / W type emulsion, the skin feel during use is good, but since the continuous phase is a water component, it does not fit well with makeup cosmetics and the cleansing power is insufficient, and sebum and makeup stains are on the skin. It is not preferable because it remains on the skin and the skin after washing with water becomes sticky.
On the other hand, liquid crystal type cleansing gel has a high oil removal amount and thus has a high makeup removal effect, but it is difficult to impart stability. When the surfactant and polyhydric alcohol are increased in order to stabilize the composition, the phase inversion to an oil state is slow when the make-up is applied, and the make-up is felt poor.
In addition, these O / W type emulsions and liquid crystal type cleansing gels apply cleansing power, and after applying these, external force is applied by sufficient massage to break up the emulsion particles and simultaneously evaporate the water. There is a problem that it takes time to lift up the dirt (phase inversion), and it takes time to lift the dirt, and the makeup removal is completed without removing the dirt sufficiently.

On the other hand, as a cleansing composition that accelerates dirt floating and exhibits high detergency, there is a cleansing oil composed of an oil component (refer to Patent Document 1). Although it is sufficient as cleansing, it is not satisfactory as a general-purpose makeup remover.

A skin external preparation for cleansing using the solvent effect of carbonic acid diester is disclosed to improve the familiarity of cleansing cream with makeup cosmetics and improve cleansing power (see Patent Document 2). In cleansing, it is also important to improve the makeup-removing effect by adding an oily component that has a solvent effect. However, as described above, in O / W emulsifying cleansing agents, the speed of phase inversion should be improved. In order to satisfy the user, it is important to improve the familiarity of the makeup and shorten the makeup removal time. It is not mentioned in this respect.
Accordingly, there is a need in the market for a cleansing agent that is easy to phase change during cleansing, has good makeup familiarity, is excellent in cleansing power, and is non-sticky after washing.

JP 2004-238376 A JP 2006-298866 A

Accordingly, an object of the present invention is to provide an easy-to-use emulsifying type cleansing material that is easy to phase change during cleansing, is well-familiar with makeup cosmetics, has excellent cleansing power, and is less sticky after washing. .

That is, the constitution of the present invention is (A) polyoxyethylene coconut oil fatty acid glyceryl (B) polyoxyethylene glyceryl triisostearate (C) polyglyceryl stearate (D) hydrogenated polyisobutene, isotridecyl neopentanoate, isostearyl neopentanoate, 2- It is an emulsifying cleansing composition containing at least one (F) purified water selected from (E) cetyl phosphate, acylalanine salt and N-stearoyl-L-glutamate selected from cetyl ethylhexanoate.

The present invention provides a cleansing composition that has a fast phase inversion during cleansing, is well-familiar with makeup cosmetics, is excellent in cleansing power, and is less sticky after washing.

Hereinafter, the configuration of the present invention will be described in detail.

In the polyoxyethylene group constituting the polyoxyethylene coconut oil fatty acid glyceryl of the component (A) in the present invention, the preferred average added mole number of oxyethylene is 5 to 10, more preferably 7.

Although the compounding quantity of the polyoxyethylene coconut oil fatty acid glyceryl of the component (A) in this invention does not have limitation in particular, Preferably it is 0.5-5 mass% in a prescription. More preferably, it is 1-3 mass%. If it is less than 0.5% by mass, it tends to be sticky after washing. When the amount is more than 5% by mass, the stability tends to deteriorate.

In the polyoxyethylene group constituting the component (B) polyoxyethylene glyceryl triisostearate in the present invention, the preferred average addition mole number of oxyethylene is 10 to 30, more preferably 20.

The amount of polyoxyethylene glyceryl triisostearate in component (B) in the present invention is not particularly limited, but preferably 0.5 to 5% by mass in the formulation. More preferably, it is 1-3 mass%. When the amount is less than 0.5% by mass, phase in-use during use tends to be slow. When the amount is more than 5% by mass, the stability tends to deteriorate.

The component (C) polyglyceryl stearate in the present invention preferably has an average degree of polymerization of glycerin of 6 to 10. Specific examples include polyglyceryl-6 stearate and polyglyceryl-10 stearate. Among these, polyglyceryl-10 stearate is particularly preferable.

Although the compounding quantity of the polyglyceryl stearate of the component (C) in this invention does not have a restriction | limiting in particular, Preferably it is 5-15 mass% in a prescription. More preferably, it is 7-12 mass%. If it is less than 5% by mass, the stability tends to deteriorate. When it is more than 15% by mass, the elongation during use tends to be heavy.

It is necessary to contain at least one hydrogenated polyisobutene, isodecyl neopentanoate, isostearyl neopentanoate, and cetyl 2-ethylhexanoate as component (D) in the present invention.

Although the total amount of the component (D) in this invention is not specifically limited, Preferably, it is mix | blending 30-70 mass% in prescription. More preferably, it is 55-65 mass%. If it is within the range, the stability is good and a feeling of use with good elongation can be obtained. More preferably, it contains 5 to 30% by mass of isodecyl neopentanoate and isostearyl neopentanoate in the formulation.

The cetyl phosphate, acylalanine salt, and N-stearoyl-L-glutamate salt of component (E) in the present invention are alkali metals such as sodium and potassium, alkaline earth metals such as calcium and magnesium, and triethanolamine. Alkanolamines such as diethanolamine, ammonia salts, and basic amino acids such as lysine and arginine.
Among these, cetyl phosphate is preferably potassium cetyl phosphate or diethanolamine cetyl phosphate.
Examples of the acyl alanine salt include sodium lauroylmethylalanine, lauroylmethylalanine triethanolamine, sodium myristoylmethylalanine, and sodium coconut oil fatty acid methylalanine, but lauroylmethyl-β-alanine sodium is preferred.
N-stearoyl-L-glutamate is preferably N-stearoyl-L-glutamic acid.

Although the total amount of the component (E) in this invention is not specifically limited, It is mixing 0.05-1 mass% in prescription. More preferably, it is 0.3-0.7 mass%. If it is within the range, the stability is good and a feeling of use with good elongation can be obtained.

The compounding quantity of the purified water of the component (F) in this invention is not specifically limited. Preferably, it is 5 to 20% by mass. Within this range, a good feeling of use with good stability and elongation can be obtained.

In the present invention, in addition to the above essential components, surfactants other than the essential components, oil agents other than the essential components, polyhydric alcohols, fragrances, pigments, preservatives, bactericides, oxidation, as long as the effects of the invention are not impaired Raw materials usually used in cosmetics such as an inhibitor, an ultraviolet absorber, an oily gelling agent, an anti-inflammatory agent, and a plant extract can be appropriately blended.

Hereinafter, the present invention will be described with reference to examples and comparative examples. The present invention is not limited to these.

The cleansing power and sensory test methods shown in the Examples and Comparative Examples are as follows. In addition, the compounding quantity of the composition shown in the following table | surfaces is each shown by the mass%.

The emulsified cleansing cosmetics shown in Table 1 were obtained by heating and mixing and dissolving the components (1) to (5), mixing the components (6) to (8) previously heated and dissolved, and then cooling.

<Cleansing power and sensory test evaluation method>
Ten women-specialized panels used commercial makeup cosmetics (foundation and lipstick). After 30 minutes, 3 g of the samples of Examples and Comparative Examples were used to massage the face, and then rinsed with water. As for the speed of phase inversion of the cleansing fee, the average value of the phase inversion time is less than 15 seconds ◎, 15 seconds to less than 30 seconds ○, 30 seconds to less than 45 seconds △, For 45 seconds or more, it was judged as x.
The phase inversion time refers to the time from the start of massage until the cosmetic resistance disappears during massage. As other sensory evaluations, the familiarity with makeup cosmetics, the effect of removing makeup, and the lack of feeling after washing are evaluated in five levels according to the following (a) evaluation criteria, and the average score of each sample is further evaluated Was determined using (b) a four-step criterion.

(A) Five-level evaluation criteria (score): (Evaluation)
4 points: Very good 3 points: Good 2 points: Normal 1 point: Slightly bad 0 point: Bad
(B) Four-stage criteria (average score): (Judgment)
3.5 or more: ◎
2.5 or more and less than 3.5: ○
1.5 or more and less than 2.5: △
Less than 1.5: ×
In addition, the stability was tested under high temperature conditions where separation is likely to occur. The cleansing materials shown in Table 1 were allowed to stand at 60 ° C. for 1 week and judged visually. When there was no change, “◎” was indicated, and when separation occurred, “×” was indicated.

Examples 1-7, Comparative Examples 1-9
Cleansing creams having the formulations shown in Table 1 were prepared by a conventional method, and the above tests were performed. The results are also shown in Table 1.

As is clear from Table 1, all of the cleansing creams (O / W) of Examples 1 to 7 using the components of the present invention had excellent performance. On the other hand, in the absence of one of component (A) and component (B), it was not possible to satisfy both the “rapidity of phase inversion” and “the lack of feeling after washing” simultaneously (comparative example). 1-2). The result of mixing and examining the similar components of the component (A) and the component (B) was not able to satisfy both the “fast phase inversion” and the “no feeling of remaining after washing” at the same time ( Comparative Examples 3-4). A specific combination of component (A) and component (B) is required to satisfy both “speed of phase inversion” and “no feeling of remaining after washing” at the same time. It can also be seen that specific surfactants and oils are necessary to prepare a stable cream. When component (C), component (D), and component (E) are replaced with other surfactants and oily components, respectively, creams cannot be prepared or the stability deteriorates (Comparative Examples 5 to 9). Therefore, the specific combination of the present invention can be obtained only by experiments and is not within the range easily conceivable from the conventional technology.

Formulation Example 1 (Cleansing Cream)
mass(%)
(1) Palm oil fatty acid polyoxyethylene glyceryl (EO average polymerization degree 7) 1.5
(2) Polyoxyethylene glyceryl triisostearate (EO average polymerization degree 20) 1.5
(3) Polyglyceryl stearate (average glycerol polymerization degree 10) 8
(4) Polyisoethylene glycol monoisostearate (EO average degree of polymerization 6) 0.5
(5) Hydrogenated polyisoptene 30.2
(6) Isotridecyl neopentanoate 10
(7) Cetyl 2-ethylhexanoate 20
(8) Isotridecyl isononanoate 10
(9) Cetyl phosphate diethanolamine 0.3
(10) Purified water 17
(11) Glycerin 1
Components (1) to (8) were mixed by heating and dissolved, and components (9) to (11) that were previously heated and mixed and dissolved were mixed and then cooled to obtain an O / W emulsion cleansing cosmetic.

Formulation Example 2 (Cleansing Cream)
mass(%)
(1) Palm oil fatty acid polyoxyethylene glyceryl (EO average degree of polymerization 7) 0.5
(2) Polyoxyethylene glyceryl triisostearate (EO average polymerization degree 20) 1.5
(3) Polyglyceryl stearate (glycerin average polymerization degree 10) 1.5
(4) Polyisoethylene glycol monoisostearate (EO average degree of polymerization 6) 0.5
(5) Hydrogenated polyisoptene 31.2
(6) Isostearyl neopentanoate 10
(7) Cetyl 2-ethylhexanoate 30
(8) Diethanolamine cetyl phosphate 0.3
(9) Purified water 17
(10) Glycerin 1
Components (1) to (7) were heated and mixed and dissolved, and components (8) to (10) that were previously heated and mixed and dissolved were mixed and then cooled to obtain an O / W emulsion cleansing cosmetic.

Formulation Example 3 (Cleansing Cream)
mass(%)
(1) Palm oil fatty acid polyoxyethylene glyceryl (EO average polymerization degree 7) 1.5
(2) Polyoxyethylene glyceryl triisostearate (EO average polymerization degree 20) 0.5
(3) Polyglyceryl stearate (average glycerol polymerization degree 10) 8
(4) Polyisoethylene glycol monoisostearate (EO average degree of polymerization 6) 0.5
(5) Hydrogenated polyisoptene 31.2
(6) Isostearyl neopentanoate 10
(7) Cetyl 2-ethylhexanoate 30
(8) Lauroylmethyl-β-alanine sodium 0.3
(9) Purified water 17
(10) Glycerin 1
Components (1) to (7) were heated and mixed and dissolved, and components (8) to (10) that were previously heated and mixed and dissolved were mixed and then cooled to obtain an O / W emulsion cleansing cosmetic.

Formulation Example 4 (Cleansing Cream)
mass(%)
(1) Palm oil fatty acid polyoxyethylene glyceryl (EO average polymerization degree 7) 1.5
(2) Polyoxyethylene glyceryl triisostearate (EO average polymerization degree 30) 1
(3) Polyglyceryl stearate (average glycerol polymerization degree 10) 8
(4) Polyisoethylene glycol monoisostearate (EO average degree of polymerization 6) 0.5
(5) Hydrogenated polyisoptene 31.2
(6) Isostearyl neopentanoate 10
(7) Cetyl 2-ethylhexanoate 30
(8) Potassium cetyl phosphate 0.3
(9) Purified water 17
(10) Glycerin 1
Components (1) to (7) were heated and mixed and dissolved, and components (8) to (10) that were previously heated and mixed and dissolved were mixed and then cooled to obtain an O / W emulsion cleansing cosmetic.
When the cleansing creams of the above Formulation Examples 1 to 4 were prepared and evaluated, they had excellent performance in terms of the speed of phase inversion during cleansing, familiarity with makeup cosmetics, cleansing power, and non-stickiness after washing. Was.

The cleansing cream of the present invention has excellent performance in terms of familiarity with makeup cosmetics, cleansing power, and non-stickiness after washing. The present invention is an invention having such remarkable operational effects, and is an invention that makes a significant industrial contribution and is significant.

Claims (2)

(A) polyoxyethylene coconut oil fatty acid glyceryl (B) polyisoethylene stearic acid polyoxyethylene glyceryl (C) polyglyceryl stearate (D) hydrogenated polyisobutene, isopentyl neopentanoate, isostearyl neopentanoate, cetyl 2-ethylhexanoate One or more selected from (E) cetyl phosphate, acylalanine salt, N-stearoyl-L-glutamate
(F) An emulsifying cleansing material characterized by containing purified water.
(A) 0.5-5 mass% polyoxyethylene coconut oil fatty acid glyceryl,
(B) 0.5-5 mass% of polyisoethylene glyceryl triisostearate,
(C) 5 to 15% by mass of polyglyceryl stearate,
(D) 30 to 70% by mass in total of at least one selected from hydrogenated polyisobutene, isodecyl neopentanoate, isostearyl neopentanoate, and cetyl 2-ethylhexanoate,
(E) 0.05 to 1% by mass in total of at least one selected from cetyl phosphate, acylalanine salt, and N-stearoyl-L-glutamate
(F) 5-20% by mass of purified water
The emulsifying cleansing material according to claim 1, comprising: