JP5646132B2 - Skin cleanser - Google Patents

Description

  The present invention relates to a skin cleansing composition comprising a nonionic surfactant combined with an oily component, a specific IOB value and a specific ratio, and water, and more particularly, a cleansing effect for makeup cosmetics, The present invention relates to a skin cleanser that is excellent in feeling of use such as ease of washing and has good storage stability.

  Conventionally, various types of cleansing cosmetics have been used for the purpose of removing makeup cosmetics such as lipsticks, foundations and mascaras. Among them, cleansing oils, mainly liquid oils, are excellent in compatibility with makeup cosmetics and have good compatibility with cosmetics, but are poorly washed away, and the rest of the cosmetics and the back skin become oily. There was a problem in terms of storage stability, such as the disadvantage of separation, separation and precipitation. Up to now, attempts have been made to improve storage stability (for example, see Patent Document 1) and attempts to improve washability (for example, see Patent Documents 2 to 5), but the cleansing effect of makeup cosmetics is not good. It was not satisfactory, such as being sufficient.

Japanese Patent No. 2977568 JP-A 62-108806 Japanese Patent No. 3545574 JP 2004-168724 A JP 2005-68082 A

  The present invention has been made in view of the above circumstances, and provides a skin cleansing material that has both a sufficient cleansing effect for makeup cosmetics and ease of washing with water, and has good storage stability. It is a subject.

  As a result of intensive studies in the above situation, the inventor combined a nonionic surfactant having a specific IOB value at a specific ratio and blended with an oily component and water, thereby cleansing the makeup cosmetics. The present inventors have found that a skin cleanser having excellent usability such as ease of rinsing with water and good storage stability can be obtained, and the present invention has been completed. Details will be described below.

That is, the present invention includes the following components (A) to (E);
(A) Oil component 65-95 mass%
(B) Nonionic surfactant having an IOB value of 0.4 or more and less than 0.7 (C) Nonionic surfactant having an IOB value of 0.7 or more and less than 0.9 (D) 9 to 1.2 nonionic surfactant (E) water 0 to 5% by mass
And the total amount of components (B) to (D) is 5 to 30% by mass in the total composition, and the amount of component (C) is the components (B) to (D). The skin cleanser characterized by exceeding 50% by mass of the total amount of Furthermore, the skin cleansing agent characterized by the compounding quantity of a component (D) being 5-30 mass% of the sum total of the compounding quantity of a component (B)-(D). Further, the present invention provides a skin cleanser characterized in that the blending amount of component (B) is 2 to 15% by mass of the total blending amount of components (B) to (D).

  The skin cleanser of the present invention is excellent in use feeling such as a cleansing effect for makeup cosmetics, easy to wash away with water, and excellent in storage stability.

Hereinafter, the present invention will be described in detail.
The component (A) oily component used in the present invention is not particularly limited as long as it is a raw material usually used in cosmetics, and can be used. For example, hydrocarbons, fats and oils, higher alcohols, waxes, hardened oils, regardless of origin such as animal oils, vegetable oils, synthetic oils, and properties such as solid oils, semi-solid oils, liquid oils, volatile oils, etc. Ester oils, fatty acids, silicone oils, fluorine oils, lanolin derivatives, oil-based gelling agents, lipophilic surfactants, oil-soluble UV absorbers and the like. Specifically, hydrocarbons such as liquid paraffin, squalane, petrolatum, polyisobutylene, polybutene, paraffin wax, ceresin wax, microcrystalline wax, fisher trops wax, olive oil, castor oil, jojoba oil, mink oil, macadamian Vegetable oils such as nut oil, beeswax, carnauba wax, candelilla wax, waxes such as gay wax, owl, montan wax, cetyl 2-ethylhexanoate, isopropyl myristate, isopropyl palmitate, octyldodecyl myristate, bird 2 -Glyceryl ethylhexanoate, polyglyceryl diisostearate, diglyceryl triisostearate, glyceryl tribehenate, pentaerythritol ester of rosin acid, neopentyl dioctanoate Cholesterol, cholesterol fatty acid ester, esters such as N-lauroyl-L-glutamate di (cholesteryl, behenyl, octyldodecyl), stearic acid, lauric acid, myristic acid, behenic acid, isostearic acid, oleic acid and other fatty acids, low Polymerization degree dimethylpolysiloxane, high polymerization degree dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, cross-linked organopolysiloxane, silicones such as fluorine-modified silicone, perfluoropolyether, Fluorine oils such as fluorodecane and perfluorooctane, lanolin, lanolin acetate, lanolin fatty acid isopropyl, lanolin derivatives such as lanolin alcohol, dextrin fatty acid ester, 蔗Fatty acid esters, starch fatty acid esters, oily gelling agents such as 12-hydroxystearic acid, aluminum stearate, calcium stearate, lipophilic surfactants such as glyceryl monostearate, sorbitan tristearate, sorbitan sesquioleate, Examples thereof include oil-soluble ultraviolet absorbers such as ethyl paraaminobenzoate, 2-ethylhexyl paramethoxycinnamate, 4-tert-butyl-4′-methoxydibenzoylmethane, and oxybenzone. These oil agents can be used singly or in combination of two or more as required.

  The compounding quantity of the component (A) in this invention is 65-95 mass% (henceforth "%" only), and 85-95% is more preferable. Further, when the proportion of the hydrocarbon oil in the blending amount of the component (A) is 50% or more, more preferably 75% or more, the cleansing effect and the storage stability for the makeup cosmetics are further improved.

The nonionic surfactants of components (B) to (D) used in the present invention are not particularly limited as long as they are liquid or paste-like at ordinary temperatures used for cosmetics. In the present invention, a nonionic surfactant having an IOB value of 0.4 or more and less than 0.7, a nonionic surfactant having an IOB value of 0.7 or more and less than 0.9, and an IOB value of 0.9 or more. It is necessary to use a specific amount of three kinds of nonionic surfactants of 1.2 or less. Here, the IOB value (Inorganic Organic Balance) is based on the organic conceptual diagram of Satoshi Fujita, and is the ratio of the inorganic and organic values. It is an index of the polarity of an organic compound, and the higher this value, the higher the polarity. When the IOB value of these nonionic surfactants is less than 0.4, the wash-out property is deteriorated, which is not preferable. When the IOB value exceeds 1.2, the solubility in oil is poor and good cleansing is achieved. The effect is not obtained, and the storage stability is insufficient, which is not preferable.

  The total amount of components (B) to (D) in the skin cleansing agent of the present invention is 5 to 30% in the total composition, and more preferably 5 to 15%. When the total amount of the components (B) to (D) is within this range, the skin has excellent cleansing effect for makeup cosmetics, ease of washing with water, and excellent storage stability. Cleaning fee can be obtained. On the other hand, if the blending amount is less than 5%, the cleansing effect and the ease of washing with water are not sufficient, and if the blending amount exceeds 30%, the skin irritation may increase, and the skin is safe from the viewpoint of safety. It may not be suitable as a cleaning fee.

Examples of the nonionic surfactant having an IOB value of component (B) used in the present invention of 0.4 or more and less than 0.7 include sorbitan sesquioleate (IOB value 0.65), sorbitan sesquiisostearate ( IOB value 0.66), POE (3) oleyl ether (IOB value 0.57), POE (5) decyltetradecyl ether (IOB value 0.63), glyceryl isostearate (IOB value 0.63), oleic acid Glyceryl (IOB value 0.62), diglyceryl diisostearate (IOB value 0.42), triglyceryl diisostearate (IOB value 0.52), PEG (5) hydrogenated castor oil (IOB value 0.51), PEG ( 10) hydrogenated castor oil (IOB value 0.69), PEG oleate (3) (IOB value 0.65), isostearic acid PE (3) (IOB value 0.66), dilauric acid PEG (3) (IOB value 0.45), dilauric acid PEG (6) (IOB value 0.69), diisostearic acid PEG (4) (IOB value 0. 40), diisostearic acid PEG (8) (IOB value 0.63), dioleic acid PEG (4) (IOB value 0.40), dioleic acid PEG (8) (IOB value 0.62), triisostearic acid PEG ( 10) glyceryl (IOB value 0.51), PEG isostearate (3) glyceryl (IOB value 0.60), PEG trioleate (10) glyceryl (IOB value 0.50), isostearic acid PEG (10) cured castor Oil (IOB value 0.54), PEG isostearate (15) hydrogenated castor oil (IOB value 0.67), PEG triisostearate (15) Castor oil (IOB value 0.47), triisostearate PEG (20) hydrogenated castor oil (IOB value 0.57), and the like. Among these, sorbitan sesquioleate, sorbitan sesquiisostearate, glyceryl isostearate, glyceryl oleate, diglyceryl diisostearate, triglyceryl diisostearate, PEG oleate (3), PEG (3) isostearate, dilauric acid PEG (3), dilauric acid PEG (6), diisostearic acid PEG (4), diisostearic acid PEG (8), dioleic acid PEG (4), dioleic acid PEG (8), triisostearic acid PEG (10) glyceryl, isostearic PEG (3) glyceryl acid and PEG (10) glyceryl trioleate are preferred from the viewpoint of makeup cleansing effect, ease of washing, and storage stability.

  Although the compounding quantity of the component (B) in the skin cleansing material of this invention is not specifically limited, 2-15% of the total amount of a component (B)-(D) is preferable, and 5-15% is more. preferable. When the component (B) is blended in this range, a skin cleanser having an excellent makeup cleansing effect and storage stability can be obtained.

Examples of the nonionic surfactant having an IOB value of 0.7 to less than 0.9 used in the present invention include POE (5) cholesteryl ether (IOB value 0.70), POE (5 ) Oleyl ether (IOB value 0.75), POE (6) oleyl ether (IOB value 0.83), POE (3) lauryl ether (IOB value 0.75), POE (5) isostearyl ether (IOB value 0) .76), hexaglyceryl diisostearate (IOB value 0.70), decaglyceryl triisostearate (IOB value 0.76), dilauric acid PEG (8) (IOB value 0.81), diisostearic acid PEG (12) ( IOB value 0.80), dioleic acid PEG (12) (IOB value 0.79), triisostearic acid PEG (20) glyceryl ( OB value 0.79), PEG (5) glyceryl isostearate (IOB value 0.77), PEG (6) glyceryl isostearate (IOB value 0.84), glyceryl trioleate (IOB value 0. 78), PEG isostearate (20) hydrogenated castor oil (IOB value 0.78), PEG triisostearate (30) hydrogenated castor oil (IOB value 0.72), lauric acid PEG (20) hydrogenated castor oil (IOB value) 0.81), trimyristic acid PEG (20) trimethylolpropane (IOB value 0.87), triisostearic acid PEG (20) trimethylolpropane (IOB value 0.78), and the like. Among these, in particular, dilauric acid PEG (8), diisostearic acid PEG (12), dioleic acid PEG (12), triisostearic acid PEG (20) glyceryl, isostearic acid PEG (5) glyceryl, isostearic acid PEG (6) Glyceryl and PEG (20) glyceryl trioleate are preferable from the viewpoint of cleansing effect, ease of washing, and storage stability.

  The compounding amount of the component (C) in the skin cleanser of the present invention is an amount exceeding 50% of the total amount of the components (B) to (D), and more preferably 60 to 80%. When the component (C) is blended in this range, a skin cleanser excellent in the cleansing effect of makeup, ease of rinsing with water, and storage stability can be obtained.

Examples of the nonionic surfactant having an IOB value of 0.9 to 1.2 in the component (D) used in the present invention include PEG (6) oleate (IOB value 0.90), POE (8 ) Oleyl ether (IOB value 0.95), POE (12) oleyl ether (IOB value 1.13), POE (5) lauryl ether (IOB value 0.95), POE (9) lauryl ether (IOB value 1. 20), POE (10) isostearyl ether (IOB value 1.06), POE (10) decyltetradecyl ether (IOB value 0.91), PEG oleate (10) (IOB value 1.10), isostearic acid PEG (6) (IOB value 0.91), PEG (8) (IOB value 1.02), isostearic acid PEG (10) (IOB value 1.11), PEG stearate (12) (IOB value 1.19), PEG dilaurate (12) (IOB value 0.98), PEG dilaurate (16) (IOB value 1.11), PEG tristearate (30) glyceryl (IOB value 0.98), PEG (40) glyceryl triisostearate (IOB value 1.11), PEG (8) glyceryl isostearate (IOB value 0.95), PEG (10) glyceryl isostearate (IOB value 1) .04), PEG (30) glyceryl trioleate (IOB value 0.97), PEG (50) glyceryl trioleate (IOB value 1.20), PEG (30) hydrogenated castor oil (IOB value 0. 94), PEG isostearate (50) hydrogenated castor oil (IOB value 1.15), triisostearin PEG (50) hydrogenated castor oil (IOB value 0.94), triisostearic acid PEG (60) hydrogenated castor oil (IOB value 1.02), lauric acid PEG (30) hydrogenated castor oil (IOB value 0.98), Lauric acid PEG (50) hydrogenated castor oil (IOB value 1.19), triisostearic acid PEG (30) trimethylolpropane (IOB value 1.05), triisostearic acid PEG (30) trimethylolpropane (IOB value 0. 96), PEG triisostearate (50) trimethylolpropane (IOB value 1.20), decaglyceryl diisostearate (10) (IOB value 1.00), and the like. Among these, especially oleic acid PEG (6), oleic acid PEG (10), isostearic acid PEG (6), isostearic acid PEG (8), isostearic acid PEG (10), isostearic acid PEG (12), dilauric acid PEG (12), PEG dilaurate (16), PEG triisostearate (30) glyceryl, PEG (40) glyceryl triisostearate, PEG (8) glyceryl isostearate, PEG (10) glyceryl isostearate, PEG trioleate (30) Glyceryl and PEG trioleate (50) glyceryl are preferred from the viewpoint of makeup cleansing effect, ease of washing, and storage stability.

  5-30% of the total amount of component (B)-(D) is preferable, and, as for the compounding quantity of the component (D) in the skin cleansing material of this invention, 10-30% is more preferable. When component (D) is blended in this range, a skin cleanser excellent in ease of rinsing with water can be obtained.

The component (E) water used in the present invention is blended into the skin cleanser for the purpose of improving storage stability.

  The blending amount of the component (E) in the skin cleanser of the present invention varies depending on the types and blending amounts of the nonionic surfactants of the components (B) to (D), but is preferably 0 to 5% in the total composition. 0.01 to 1% is more preferable. When component (E) is blended in this range, a skin cleanser having excellent storage stability can be obtained.

  In the skin cleanser of the present invention, in addition to the above essential components, if necessary, as components normally used in cleanser and cosmetics, for example, alcohols such as ethanol, glycerin, 1,3-butylene glycol, Polyhydric alcohols such as dipropylene glycol, propylene glycol, polyethylene glycol, polypropylene glycol, sorbitol, alkyl sulfate ester salts, acyl glutamate salts, acyl sarcosine salts, N-acyl-N-methyl taurate salts, alkyl phosphate ester salts, etc. Anionic surfactants, amphoteric surfactants such as N-alkyl-N, N-dimethylaminoacetic acid betaine, alkyldimethylamine oxide, cationic surfactants, powders, gelling agents, UV absorbers, humectants , Antiseptic, antibacterial agent, fragrance, antioxidant, metal sequestering agent, wearing Agents, can be blended within a range not to impair the effects of the present invention a cosmetic agent or the like as other components.

  Although the form of the skin cleansing material of the present invention is not particularly limited, it is usually preferably liquid, and in some cases, it can be made highly viscous or solid using a gelling agent or the like.

  EXAMPLES Next, although an Example is given and this invention is further demonstrated, this invention is not limited at all by this.

Liquid oil-based cleaning material: Invention products 1 to 10 and comparison products 1 to 5
Liquid oil-based detergents having the compositions shown in Tables 1 and 2 below are prepared by the following production method. (1) Cleansing effect, (2) Ease of washing with water, (3) Storage stability It evaluated and determined and the result was combined and shown to Tables 1-2.

(Production method)
A: Components (1) to (5) are mixed at room temperature.
B: While stirring A, components (6) and (7) were gradually added and mixed to obtain a liquid oily detergent.

[Evaluation item (1) Cleansing effect of makeup, (2) Ease of washing with water]
20 females with a makeup history of 10 years or more are applied to the panel, W / O emulsified foundation is applied to the entire face, and W / O emulsified mascara is applied to the eyelashes. For the cleansing effect and ease of rinsing with water when using an oil-based cleaning agent and removing the foundation and mascara, the following (b) 5-point absolute evaluation criteria are assigned, The average value was determined and judged according to the following (b) four-stage criteria.

(I) Five-step absolute evaluation criteria (Evaluation results): (Score)
5 points: very good 4 points: good 3 points: normal 2 points: bad 1 point: very bad (b) 4-step criteria (average score): (judgment)
Average score of 4.5 or more: ◎
Average score of 3.5 or more and less than 4.5: ○
Average score of 2.5 or more and less than 3.5: △
Average score of less than 2.5: ×

[Evaluation item (3) Storage stability]
The liquid oily cosmetics of the present invention and the comparative product are stored at 50 ° C. and 5 ° C. for 1 month, and the state of the storage product (change in appearance (separation, presence or absence of precipitation)) is observed. Judged using.

(C) 4-step criteria (observation results): (judgment)
No change: ◎
There are minor changes: ○
There is a slight change: △
There is considerable change: ×

  As is clear from the results of Tables 1 and 2, the liquid oil-based detergents of the present invention products 1 to 10 are superior in cleansing effect to foundation and mascara, easy to wash away with water, and storage stability compared to the comparative products. It was. On the other hand, Comparative Product 1 having a small total amount of nonionic surfactant lacks ease of washing with water and storage stability, and has a IOB value of 0.7 or more and less than 0.9. The comparative product 2 with a small ratio of the cleansing effect and the storage stability is inferior, and the comparative product 3 containing no nonionic surfactant having an IOB value of 0.4 or more and less than 0.7 has a poor storage stability. Comparative product 4 containing no nonionic surfactant with a value of 0.9 or more and 1.2 or less has poor ease of washing with water and storage stability, and comparative product 5 with a large amount of purified water stored. Stability was inferior.

Invention product 11: highly viscous oily skin cleanser (component) (%)
1. Liquid paraffin 59.89
2. Isopropyl myristate 10.0
3. Glyceryl tri-2-ethylhexanoate 10.0
4). Glyceryl behenate eicosane diacid 3.0
5. Sorbitan sesquioleate 1.0
6). Diisostearic acid PEG (12) 9.0
7). PEG (10) glyceryl isostearate 4.0
8). Stearyl glycyrrhizinate 0.1
9. 1,3-Butylene glycol 1.0
10. Purified water 2.0
11. Sodium hyaluronate 0.01

(Production method)
A: Components (1) to (8) are heated to 70 ° C. and dissolved.
B: Components (9) to (11) are heated and dissolved at 70 ° C.
C: While A is being stirred, B is gradually added and mixed.
D: C was stirred and cooled to room temperature to obtain a highly viscous oily skin cleanser.

  The highly viscous oily skin cleanser of Invention Product 11 was excellent in cleansing effect, ease of rinsing with water, and storage stability.

Invention product 12: Oily solid skin cleanser (component) (%)
1. Liquid paraffin 46.4
2.2 Cetyl 2-ethylhexanoate 20.0
3. Decamethylcyclotetrasiloxane 5.0
4). Jojoba oil 2.0
5. Squalane 2.0
6). Meadow Foam Oil 2.0
7). Dibutylhydroxytoluene 0.1
8). Diisostearic acid PEG (8) 1.0
9. PEG (20) glyceryl triisostearate 10.0
10. PEG (12) isostearate 3.0
11. Polyethylene wax 8.0
12 Phenoxyethanol 0.5

(Production method)
A: Components (1) to (12) are heated to 80 ° C. and dissolved.
B: A was filled in a container and cooled to room temperature to obtain an oily solid skin cleanser.

  The oily solid skin cleanser of the product 12 of the present invention was excellent in cleansing effect, ease of rinsing with water, and storage stability.

Claims (3)

The following components (A) to (E);
(A) Oil component 65 to 95% by mass of hydrocarbon oil is 75% by mass or more
(B) Sorbitan sesquioleate, sorbitan sesquiisostearate, glyceryl isostearate, glyceryl oleate, diglyceryl diisostearate, triglyceryl diisostearate, PEG oleate (3), PEG isostearate (3), PEG dilaurate (3 ), Dilauric acid PEG (6), diisostearic acid PEG (4), dioleic acid PEG (4), dioleic acid PEG (8), triisostearic acid PEG (10) glyceryl, isostearic acid PEG (3) glyceryl, and triolein Nonionic surfactant having an IOB value selected from acid PEG (10) glyceryl of 0.4 or more and less than 0.7 (C) dilauric acid PEG (8), dioleic acid PEG (12), triisostearic acid PEG ( 20) Guri Nonionic surfactant having an IOB value of 0.7 or more and less than 0.9 selected from Ril, PEG (5) glyceryl isostearate, PEG (6) glyceryl isostearate and PEG (20) glyceryl trioleate ( D) oleic acid PEG (6), oleic acid PEG (10), isostearic acid PEG (6), isostearic acid PEG (8), isostearic acid PEG (10), isostearic acid PEG (12), dilauric acid PEG (12) PEG (16) dilaurate, PEG (30) glyceryl triisostearate, PEG (40) glyceryl triisostearate, PEG (8) glyceryl isostearate, PEG (10) glyceryl isostearate, PEG (30) glyceryl trioleate And trioleic acid P G (50) IOB value selected from glyceryl 0.9 to 1.2 of the nonionic surfactant (E) Water 0.01 wt%
And the total amount of the components (B) to (D) is 5 to 15% by mass in the total composition, and the component (C) is added to the components (B) to (D). ) And 60 to 80% by mass of the total amount of component (D), and the amount of component (D) is 10 to 30% by mass of the total amount of components (B) to (D). Skin cleanser. Furthermore, the compounding quantity of a component (B) is 2-15 mass% of the sum total of the compounding quantity of a component (B)-(D), The skin cleansing agent of Claim 1 characterized by the above-mentioned. The skin cosmetic according to claim 1 or 2, further comprising a gelling agent, wherein the skin cosmetic is highly viscous or solid.