JP2014037404A - Gel-like skin cleansing composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gel-like skin cleansing composition which has moderate viscosity, is either transparent or semitransparent in its appearance, provides excellent cleansing property and warm feeling when being applied, has an excellent storage stability at a range of low to middle temperature, and is especially suitable for a makeup remover.SOLUTION: A gel-like skin cleansing composition includes: (A) 40-95 mass% of polyhydric alcohol which contains glycerol at 20 mass% or more relative to the mass of entire skin cleansing composition; (B) 4-20 mass% of one or more kinds of nonionic surfactant selected from a fatty acid glyceryl of polyoxyethylene and a mono-fatty acid eser of polyethylene glycol having an HLB value of 6-15; (C) 0.1-5 mass% of thickener (such as a carboxyvinyl polymer and an acrylamide polymers) which contains polyhydric alcohol at high concentration and exhibits thickening property in a system which contains low concentration of or no water; and (D) 0-10 mass% of water. The gel-like skin cleansing composition has viscosity of 10,000 mPa s or more when measured by a B type viscometer at 30°C.

Description

  The present invention relates to a gel skin cleanser. More particularly, the present invention relates to a gel-like skin cleanser having an appropriate viscosity, having an appearance that is transparent to translucent, excellent in cleanability and warm feeling during use, and excellent in storage stability in a low temperature to medium temperature range. Especially this invention is used suitably for the washing | cleaning removal (makeup removal) of makeup cosmetics, such as a foundation, a lipstick, and an eyeline.

  The following patent documents are listed as documents describing techniques close to the gel-like skin cleansing material of the present invention.

  JP-A-9-48706 (Patent Document 1) discloses a cleansing composition containing 30 to 80% by mass of a humectant, 1 to 50% by mass of oil, and 0.01 to 10% by mass of water. . However, Patent Document 1 does not describe or suggest that glycerin and other humectant components are used separately as a humectant, and suggests that a nonionic surfactant having a specific range of HLB is used. There is no such description.

  Japanese Patent Application Laid-Open No. 8-283123 (Patent Document 2) discloses a water-based gel containing a polyethylene glycol higher fatty acid ester type nonionic surfactant, a polyhydric alcohol or glycol ether, and a water-soluble polymer in a specific blending amount range. A detergent composition is disclosed. Japanese Patent Laid-Open No. 9-40525 (Patent Document 3) discloses a water-based gel-like cleaning containing a polyethylene glycol higher fatty acid ester type nonionic surfactant, a polyhydric alcohol or glycol ether, and a powder each in a specific blending amount range. An agent composition is disclosed. However, none of the inventions of Patent Documents 2 and 3 are intended to obtain a warm feeling during use. All of the cleaning compositions specifically shown in the examples have a large amount of water.

  JP-A-2001-335429 (Patent Document 4) discloses a gel cosmetic comprising 40 to 75% by mass of polyethylene glycol, 20 to 55% by mass of polyethylene glycol and a carboxyvinyl polymer. Is described as being able to sustain warm heat for a long time when mixed with water or a preparation containing water. However, Patent Document 4 has no description that suggests that a nonionic surfactant having a specific range of HLB is used, and there is no description about the makeup-removing effect or the like.

  Japanese Patent Application Laid-Open No. 2002-284640 (Patent Document 5) discloses a polyoxyethylene sorbitan fatty acid ester type nonionic surfactant having a specific humectant such as propylene glycol and glycerin in an amount of 40 to 90% by mass and an HLB of 12 or more. Is disclosed as a hot cleansing material containing 5 to 30 mass% of polyoxyethylene fatty acid glycerin type nonionic surfactant. The cleansing fee produces a feeling of warmth when in use, but there is no description or suggestion as to whether or not it exhibits a gel shape.

JP-A-9-48706 JP-A-8-283123 Japanese Patent Laid-Open No. 9-40525 JP 2001-335429 A JP 2002-284640 A

  The present invention is particularly suitably used for make-up removal, etc., has an appropriate viscosity, is transparent to translucent in appearance, has excellent cleanability and warm feeling during use, and is stable in storage at low to medium temperatures. The object is to provide an excellent gel-like skin cleanser.

  In order to solve the above problems, the present invention provides (A) 40 to 95% by mass of a polyhydric alcohol containing glycerin at a blending ratio of 20% by mass or more with respect to the skin cleansing material, and (B) an HLB of 6 to 15. 4 to 20% by mass of one or more nonionic surfactants selected from polyoxyethylene fatty acid glyceryl and polyethylene glycol monofatty acid ester, and (C) polyhydric alcohol in a high blend, water 0.1 to 5% by mass of a thickener capable of exhibiting thickening with respect to a low or non-mixed system, (D) 0 to 10% by mass of water, and a viscosity (B-type viscometer at 30 ° C.) Provided is a gel-like skin cleanser that is 10,000 mPa · s or more.

  Further, the present invention provides the gel skin cleanser described above, wherein the component (A) contains, in addition to glycerin, one or more selected from polyethylene glycol, 1,3-butylene glycol, and dipropylene glycol. I will provide a.

  In the present invention, as the component (C), one or two selected from carboxyvinyl polymer, (acryloyldimethyltaurine ammonium / beheneth-25 methacrylate) crosspolymer, (dimethylacrylamide / acryloyldimethyltaurine sodium) crosspolymer The gel-like skin cleansing agent using at least a seed is provided.

  According to the present invention, it is suitably used for make-up removal, etc., has an appropriate viscosity, is transparent or translucent in appearance, has excellent cleaning properties and warm feeling at the time of use, and has low to medium temperature storage stability. An excellent gel-like skin cleanser is provided.

  Hereinafter, the present invention will be described in detail. In the following, POE means polyoxyethylene, POP means polyoxypropylene, and PEG means polyethylene glycol.

[(A) component]
The polyhydric alcohol as the component (A) in the present invention contains at least glycerin at a blending ratio of 20% by mass or more based on the total amount of the cleaning material. More preferably, it is 30 mass% or more. When the blending amount of glycerin is less than 20% by mass in the cleaning material, there are problems such as difficulty in obtaining a sufficient viscosity.

  The polyhydric alcohol other than glycerin contained in the component (A) is not particularly limited as long as it can be usually blended in cosmetics. For example, ethylene glycol, diethylene glycol, 1,3-butylene glycol, hexa Examples include methylene glycol, isoprene glycol, polyethylene glycol, hyaluronic acid, xylitol, sorbitol, maltitol, diglycerin (EO) PO adduct and the like. The polyhydric alcohol is preferably liquid at room temperature (25 ° C.) in terms of stability and usability. Among these, polyethylene glycol (liquid at normal temperature), 1,3-butylene glycol, and dipropylene glycol are preferable in terms of warmth or stability during use. These polyhydric alcohols can be used alone or in combination of two or more.

  The total amount of component (A) containing glycerin is 40 to 95% by mass in the skin cleanser of the present invention. Preferably it is 60-90 mass%. When the blending amount of the component (A) is less than 40% by mass, a feeling of warmth during use cannot be sufficiently obtained, while when it exceeds 95% by mass, a sufficient cleaning effect cannot be obtained.

[Component (B)]
The component (B) is one or more nonionic surfactants selected from polyoxyethylene fatty acid glyceryl and polyethylene glycol monofatty acid ester having an HLB of 6 to 15. If the HLB value is less than 6, it becomes difficult to wash away the skin cleanser with water. On the other hand, if it exceeds 15, the compatibility with the oil in the makeup cosmetics tends to be poor, and the cleaning effect tends to be difficult to obtain. The HLB is preferably 9-14. HLB is the following number 1

(However, MW represents the molecular weight of the hydrophilic base, and MO represents the molecular weight of the lipophilic base)
It is calculated by the Kawakami equation represented by Additivity is recognized in the HLB value, and when the combination of two or more kinds of nonionic surfactants is used, the HLB value as a whole is expressed by a weighted average of the HLB values of the single surfactants. The

  Specific examples of the component (B) include, as polyoxyethylene fatty acid glyceryl, for example, POE monoisostearate glyceryl (3E.O.) (= PEG-3 glyceryl monoisostearate) [manufactured by Nippon Emulsion Co., Ltd., “EMALEX GWIS-103 HLB = 6], POE glyceryl monoisostearate (8E.O.) (= PEG-8 glyceryl monoisostearate) [same “EMALEX GWIS-108”, HLB = 10], POE (20) glyceryl monoisostearate (= PEG-20 glyceryl monoisostearate) [same “EMALEX GWIS-120”, HLB = 13], POE (7) coconut oil fatty acid glyceryl (= coconut oil fatty acid PEG-7 glyceryl) [“Cethiol HE” manufactured by Cognis Japan ”, HLB = 13] POE glyceryl diisostearate (10E.O.) (= PEG-10 glyceryl diisostearate) [manufactured by Nippon Emulsion “EMALEX GWIS-210EX”, HLB = 7], POE diisostearate glyceryl (10E.O.) (= diisostearic acid PEG-10 glyceryl) (same as “EMALEX GWIS-210EX, HLB = 7”, POE glyceryl triisostearate (20E.O.) (= PEG-20 glyceryl triisostearate) [same as “EMALEX GWIS-320EX”, HLB = 7] and the like.

  Examples of the polyethylene glycol monofatty acid ester include, for example, polyethylene glycol monoisostearate (6EO) (= PEG-6 monoisostearate) [same “EMALEX PEIS-6EX”, HLB = 9], polyethylene monoisostearate Glycol (10E.O.) (= monoisostearic acid PEG-10) [same “EMALEX PEIS-10EX”, HLB = 11], monoisostearic acid polyethylene glycol (12E.O.) (= monoisostearic acid polyethylene glycol 600, PEG-12 monoisostearate [the same "EMALEX PEIS-12EX", HLB = 12], polyethylene glycol monooleate 400 [HLB = 11.4], polyethylene glycol monostearate 00 [HLB = 11.6], and the like.

  In addition, when polyoxyethylene fatty acid glyceryl is used as the component (B), the use of mono-fatty acid as the fatty acid is more stable at low to medium temperatures than when di-fatty acid or tri-fatty acid is used. In addition to the effects of the invention, a stability effect at high temperatures can also be obtained. Therefore, when the stability effect at high temperature is also desired, it is preferable to use polyoxyethylene mono fatty acid glyceryl and polyethylene glycol mono fatty acid ester.

  (B) The compounding quantity of a component is 4-20 mass% in this invention skin cleansing material. Preferably it is 6-15 mass%. When the blending amount of the component (B) is less than 4% by mass, sufficient detergency cannot be obtained. On the other hand, when it exceeds 20% by mass, sufficient warmth cannot be obtained during use. Moreover, when it is desired to obtain a stability effect at a high temperature in addition to the stability effect at a low temperature to a medium temperature range, the blending amount of the component (B) is preferably about 15% by mass or less.

[Component (C)]
The thickener as the component (C) refers to a compound that is highly blended with polyhydric alcohol and that can exhibit a thickening effect with respect to the base of the present invention with low blending of water or no water. Examples of such a thickener include carboxyvinyl polymer, sodium alginate, hydroxyethyl cellulose, xanthan gum, sodium hyaluronate, succinoglycan, carboxymethyl cellulose, polyacrylamide, poly (acrylic acid-alkyl methacrylate), (dimethylacrylamide). / Acryloyldimethyltaurine Na) crosspolymer, poly (2-acrylamido-2-methylpropanesulfonic acid / vinylpyrrolidone), (acryloyldimethyltaurine ammonium / beheneth methacrylate-25) crosspolymer, (polyoxyethylene decyl tetradecyl ether Hexamethylene diisocyanate / polyethylene glycol 11000 copolymer, polyvinylpyrrolidone, O- [2-hydroxy chloride] 3- (trimethylammonio) propyl] hydroxyethylcellulose, O- [2-hydroxy-3- (trimethylammonio) propyl] locust bean gum, vinylpyrrolidone, N, N-dimethylaminoethyl methacrylate, stearyl acrylate Examples include tripropylene glycol diacrylate copolymer, synthetic sodium silicate / magnesium, etc. Among them, carboxyvinyl polymer, (acryloyldimethyltaurine ammonium / beheneth methacrylate-25) crosspolymer, (dimethylacrylamide / acryloyldimethyltaurine sodium) A cross polymer etc. are preferably used The component (C) can use 1 type (s) or 2 or more types.

  In the present invention, hydroxypropyl cellulose, polyvinyl alcohol, etc., which are generally known as thickeners in cosmetics, are those containing a high amount of polyhydric alcohol as in the present invention and low or no water. Is not included in the component (C) of the present invention because it does not exhibit thickening.

  (C) The compounding quantity of a component is 0.1-5 mass% in this invention skin cleansing material. Preferably it is 0.2-4 mass%. When the blending amount of the component (C) is less than 0.1% by mass, an appropriate viscosity cannot be obtained. On the other hand, when the blending amount exceeds 5% by mass, a sticky feeling, a film feeling, etc. are produced and a good feel characteristic is obtained. Absent.

[(D) component]
The component (D) is water. (D) component compounding quantity in this invention cleaning material is 0-10 mass%. When the component (D) exceeds 10% by mass, it tends to be difficult to feel warm feeling during use, which is not preferable.

  The skin cleanser of the present invention has a viscosity (B-type viscometer, 30 ° C.) of 10,000 mPa · s or more and exhibits a gel shape. The viscosity is preferably 20,000 mPa · s or more. Thereby, it has a suitable viscosity at the time of use, and a washing | cleaning material does not drip easily at the time of use. The upper limit of the viscosity is not particularly limited, but is preferably about 200,000 mPa · s or less from the viewpoint of ease of use when picked up by the hand.

  The skin cleansing composition of the present invention having the above-mentioned structure produces a warm feeling during use mainly due to the heat of hydration of component (A). Further, even if oil is not contained as an essential component, it is excellent for cleaning and removing makeup cosmetics. Furthermore, the stability over time is excellent.

  In addition to the above-described components, the skin cleanser of the present invention can optionally contain components that can be usually blended in cosmetics as long as the objects and effects of the present invention are not impaired. Examples of such components include lower alcohols, hydrocarbon oils, waxes, ester oils, silicone oils, pH adjusters, bactericides, chelating agents, antioxidants, ultraviolet absorbers, anti-inflammatory agents, and fragrances. It is done. However, it is not limited to these examples.

  The skin cleanser of the present invention is suitably used for cleaning and removing (make-up remover) makeup cosmetics such as foundations, lipsticks, mascaras, eye shadows, and eyeliners.

  Hereinafter, the present invention will be described more specifically with reference to examples. However, the present invention is not limited thereto. Unless otherwise specified, all amounts are shown in mass%.

  The evaluation method used in this example is shown.

[viscosity]
The viscosity of the sample was measured at 30 ° C. using a B-type viscometer (rotation speed: 10 rpm, “Bismetron viscometer VDH2 type” manufactured by Shibaura System Co., Ltd.).

[Make down]
The female panel (10 persons) actually used the sample, and the ease of removal of the foundation was evaluated according to the following evaluation criteria.
(Evaluation criteria)
A: 8 or more out of 10 people evaluated that they were excellent in make-up removal.
○: 6 to 7 out of 10 people evaluated that it was excellent in make-up removal.
(Triangle | delta): 3-5 people evaluated that it was excellent in make-up removal.
X: Two or less out of ten people evaluated that it was excellent in make-up removal.

[Warm feeling when using]
Samples were actually used by female panels (10 persons), and the warm feeling during use was evaluated according to the following evaluation criteria.
(Evaluation criteria)
A: Eight or more out of 10 people evaluated that they were excellent in warm feeling during use.
○: 6 to 7 out of 10 people evaluated that they were excellent in warm feeling during use.
(Triangle | delta): 3-5 persons evaluated that it was excellent in the warm feeling at the time of use among 10 persons.
X: Two or less out of 10 persons evaluated that it was excellent in the warm feeling at the time of use.

[Stability]
The sample was allowed to stand in an environment of 0 ° C., room temperature (25 ° C.), and 50 ° C. for 1 month, and the appearance was visually evaluated according to the following evaluation criteria.
(Evaluation criteria)
A: No change was observed at all.
○: Slight separation was observed, but there was no practical problem.
Δ: Slight separation was observed.
X: Separation was observed.

[appearance]
The external appearance (transparent to translucent) of the sample was observed visually.

(Examples 1-10, Comparative Examples 1-4)
Samples shown in Table 1 below were produced by a conventional method. Using these samples, the viscosity, makeup drop, warm feeling during use, stability, and appearance were evaluated according to the above evaluation criteria. The results are shown in Table 1.

  As is apparent from the results in Table 1, the effects of the present invention could be obtained in Examples 1 to 10, which are the scope of the present invention. In addition, when POE fatty acid glyceryl is used as the component (B), in Examples 1 to 9 in which the fatty acid in the surfactant is a mono-fatty acid, in addition to the low temperature to medium temperature range stability effect, the stability effect in the high temperature range also I could get more. On the other hand, in Comparative Example 1 in which the blending amount of component (B) is too low, and in Comparative Example 4 in which a nonionic surfactant having an HLB value exceeding 15 is used instead of component (B), a sufficient make-up effect is obtained. The effect of the present invention could not be achieved. In Comparative Examples 2 and 3 using a non-surfactant other than the component (B), the system was separated and a sample could not be prepared.

(Examples 11 to 14, Comparative Example 5)
Samples shown in Table 2 below were produced by a conventional method. Using these samples, the viscosity, makeup drop, warm feeling during use, stability, and appearance were evaluated according to the above evaluation criteria. The results are shown in Table 2.

  As is clear from the results in Table 2, the effects of the present invention could be obtained in Examples 11 to 14 which are the scope of the present invention, but in Comparative Example 5 where the amount of component (D) departs from the scope of the present invention, A sufficient warming effect during use could not be obtained. In Examples 11 to 14, POE fatty acid glyceryl is used as the component (B), but mono-fatty acid is used as the fatty acid in the surfactant, and the present invention is stable at low to medium temperatures. In addition to the effect, a stability effect in a high temperature range could be obtained.

(Examples 15-16, Comparative Examples 6-8)
Samples shown in Table 3 below were produced by a conventional method. Using these samples, the viscosity, makeup drop, warm feeling during use, stability, and appearance were evaluated according to the above evaluation criteria. The results are shown in Table 3.

  As is clear from the results in Table 3, while it was confirmed that Examples 15 to 16 using an acrylamide polymer as the component (C) exhibited the effects of the present invention, instead of the component (C), In Comparative Examples 6 to 7 using hydroxypropyl cellulose and polyvinyl alcohol, and Comparative Example 8 in which the component (C) was not blended, the system was separated, and a sample could not be prepared. In Examples 15 to 16, POE fatty acid glyceryl is used as the component (B), but mono-fatty acid is used as the fatty acid in the surfactant, and the present invention effect of stability in a low temperature to medium temperature range is used. In addition, a stability effect at a higher temperature could be obtained.

(Examples 17 to 26, Comparative Examples 9 to 10)
Samples shown in Table 4 below were produced by a conventional method. Using these samples, the viscosity, makeup drop, warm feeling during use, stability, and appearance were evaluated according to the above evaluation criteria. The results are shown in Table 4.

  As is clear from the results in Table 4, the effects of the present invention could be obtained in Examples 17 to 26 which are the scope of the present invention, but the comparative amount 9 in which the amount of component (A) is too low and the amount of glycerin are In Comparative Example 10 of less than 20% by mass, there was a problem that warmth was not obtained or sufficient viscosity was not obtained, and the effects of the present invention could not be obtained.

  The formulation examples are further shown below.

(Prescription Example 1)
(Mixed component) (mass%)
Glycerin 45.16
Polyethylene glycol 400 40
Isododecane 1.5
Dimethylpolysiloxane (100 cs) 1.5
PEG-20 glyceryl monoisostearate 8
Carboxyvinyl polymer 0.5
Acrylic acid alkyl methacrylate copolymer 0.1
Caustic potash 0.2
Edetate trisodium 0.02
Perfume 0.02
Ion exchange water 3

(Prescription example 2)
(Mixed component) (mass%)
Glycerin 45.28
Polyethylene glycol 400 40
Isododecane 1
Dimethylpolysiloxane (6cs) 0.5
Cetyl octanoate 1
Decamethylcyclopentasiloxane 0.5
PEG-8 glyceryl monoisostearate 8
Carboxyvinyl polymer 0.3
Acrylic acid alkyl methacrylate copolymer 0.2
Caustic potash 0.18
Edetate trisodium 0.02
Perfume 0.02
Ion exchange water 3

  According to the present invention, it has an appropriate viscosity, is transparent or translucent in appearance, has excellent cleanability and warm feeling during use, and is excellent in storage stability in a low temperature to medium temperature range, particularly suitably used for make-up removal, etc. A gel-like skin cleanser is provided.

Claims (3)

  (A) 40 to 95% by mass of a polyhydric alcohol containing glycerin at a blending ratio of 20% by mass or more with respect to the skin cleansing material, and (B) a polyoxyethylene fatty acid glyceryl and polyethylene glycol monofatty acid having an HLB of 6 to 15 4 to 20% by mass of one or two or more nonionic surfactants selected from esters, (C) high blending of polyhydric alcohols, and increased viscosity for systems with low or no blending of water 0.1 to 5% by mass of a thickening agent that can be exhibited, (D) 0 to 10% by mass of water, and a viscosity (B-type viscometer, 30 ° C.) of 10,000 mPa · s or more Skin cleanser.   The gel skin cleanser according to claim 1, wherein the component (A) contains one or more selected from polyethylene glycol, 1,3-butylene glycol, and dipropylene glycol in addition to glycerin.   As the component (C), one or more selected from carboxyvinyl polymer, (acryloyldimethyltaurine ammonium / behenes methacrylate 25) crosspolymer, and (dimethylacrylamide / acryloyldimethyltaurine sodium) crosspolymer are used. The gel-like skin cleansing material according to claim 1 or 2.