JP5558754B2 - Cosmetics for cleansing - Google Patents

Description

  The present invention relates to a cosmetic, and more particularly to a cosmetic suitable for a cleansing cosmetic.

Cleansing cosmetics are, for example, cosmetics that are difficult to remove by normal aqueous cleaning, such as lip colors, and cosmetics used for the purpose of removing greasy stains, and currently known dosage forms include surfactants There are cleansing cosmetics of the aqueous carrier solution type, high internal phase oil-in-water emulsification type, cleansing cosmetics of the non-water emulsifier type, and the like. In such a dosage form, cleansing cosmetics of an aqueous carrier solution type of surfactant or an oil-in-water emulsion type of high internal phase have the advantage of imparting freshness to the skin, but in terms of detergency of oily components, A water emulsifier type cleansing cosmetic is not effective. That is, in cleansing cosmetics, it can be said that development of cleansing cosmetics having excellent detergency of oily components while giving freshness to the skin is desired.

In order to increase the detergency of oily components, techniques for incorporating powders into cleansing cosmetics are already known (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3). It is used as a rubbing medium for the purpose of improving the cleansing function, and has not been performed from the viewpoint of reducing irritation to the skin.

In addition to the improvement of detergency, a technique for forming a thixotropic structure and containing powders to keep a cosmetic preparation stable is also known (for example, Patent Document 4 and Patent Document 5). , Refer to Patent Document 6), and since the content of the powder is large, the level of irritation to the skin was also the conventional level.

  On the other hand, cosmetics for cleansing a gel-like dosage form containing a polyoxyethylene fatty acid glyceryl are also known (see, for example, Patent Document 7). However, in the thixotropy change during use, the feeling of use is not sufficiently good. There wasn't.

A water-in-oil type cosmetic composition for cleansing, 1) and trimethyl silylated powder 0.01 wt%, 2) and 1-8% by weight oil component liquid at 1 atm 25 ° C., 3 No cosmetics containing 0.1) 1% by weight of a hydrophilic gelling agent and 4) 10-25% by weight of polyoxyethylene fatty acid glyceryl are known. Also, it is not known at all that it is excellent in detergency, usability and skin irritation.

JP 2002-302421 A JP 2001-106858 A Japanese Patent Laid-Open No. 08-143420 JP 2005-154356 A JP 2005-154357 A JP 2005-154358 A Japanese Patent Laid-Open No. 2001-19619

The present invention has been made under such circumstances, and an object of the present invention is to provide a cleansing cosmetic excellent in detergency, usability and skin irritation.

In view of such circumstances, the present inventors have detergency, seeking cosmetic for cleansing with excellent usability and skin irritation, the results of extensive research efforts, 1) trimethyl silylated powder 0.01 to 0.1% by mass of the body, 2) 1 to 8% by mass of an oily component that is liquid at 1 atm and 25 ° C., 3) 0.1 to 1% by mass of the hydrophilic gelling agent, and 4) polyoxy It has been found that a cosmetic comprising 10 to 25% by mass of a compound having an ethylene fatty acid glyceryl has such characteristics and has completed the invention. That is, the present invention relates to the following technique.
(1) A water-in-oil type cosmetic composition for cleansing, 1) and 0.01 to 0.1 wt% trimethyl silylating powder, 2) oil component liquid at 1 atm 25 ° C. 1 to 8 wt% And 3) 0.1 to 1% by mass of a hydrophilic gelling agent, and 4) 10 to 25% by mass of polyoxyethylene fatty acid glyceryl , wherein the hydrophilic gelling agent is cationized cellulose, hydroxyethyl cellulose, Starch, ionized starch derivative, block polymer of starch and synthetic polymer, hyaluronic acid, carrageenan (copper, iota, lambda form), locust bean gum, xanthan gum, guar gum, gellan gum, tamarindow, glucomannan, chitin, chitosan, pullulan , Tuberose polysaccharide, water-soluble collagen, carboxyvini which may be alkyl-modified Polymers, Ernest gum, gelatin, pectin, agarose, and wherein the at least one selected from these salts, the cosmetic for cleansing.
(2) The cosmetic for cleansing according to (1), which is in a gel-like form.
(3) One or more selected from mica, sericite, kaolin, silica, alumina, calcium carbonate, magnesium carbonate, calcium silicate, magnesium silicate, bentonite, starch, cellulose, lactose, sucrose and dextrin Is a cleansing cosmetic according to (1) or (2), characterized in that there are two or more types.
(4) The oil component which is liquid at 1 atm and 25 ° C. is a hydrocarbon, an ester of a fatty acid and a higher alcohol having 8 to 24 carbon atoms, a trifatty acid ester of glycerin, a tetrafatty acid ester of diglycerin, or a pentafatty acid ester of triglycerin. The cosmetic for cleansing according to any one of (1) to (3), wherein the cosmetic is one or more selected from silicone and silicone.

ADVANTAGE OF THE INVENTION According to this invention, the cosmetics for cleansing excellent in cleaning power, usability, and skin irritation can be provided.

(1) cosmetics cosmetic essential component is powder present invention of the present invention, a trimethyl silylating powder 0.01-0.1 wt%, more preferably 0.02 to 0.08 mass % Content. The powder that can be used in the cosmetics of the present invention can be used without particular limitation as long as it is a powder used in cosmetics. For example, talc, mica, sericite, kaolin, silica, alumina, calcium carbonate, carbonate Mineral powder such as magnesium, calcium silicate, magnesium silicate, bentonite, titanium mica, titanium sericite, polymethyl methacrylate, nylon powder, polyethylene powder, polypropylene powder, methylsiloxane network polymer, dimethylpolysiloxane partially crosslinked product, etc. Examples thereof include organic powders such as starch, cellulose, lactose, sucrose, and dextrin. These may contain only one species, or two or more species may be combined and silica is particularly preferred. Furthermore, although it is the particle size of this powder, it is preferable that the average value of the particle size measured using the Coulter counter is 5-15 micrometers. These are already on the market and can be used. As such trimethyl silylated silica, in commercially available products, manufactured by Dow Corning Toray Co., Ltd. of "Dow Corning (TM) VM-2270 Aerogel Fine Particles", etc. can be preferably exemplified. In the cosmetic of the present invention, such a powder has a role of stably dispersing the oil component described later in the preparation by forming a thixotropic structure. Such a powder exhibits such an effect by being in the range of the content and the particle diameter.

(2) Oily component which is an essential component of the cosmetic of the present invention The cosmetic of the present invention contains 1 to 8% by mass, more preferably 3 to 7% by mass of an oily component that is liquid at 1 atm and 25 ° C. And Such oily components can be used without particular limitation as long as they are classified as liquid fats used in cosmetics, for example, hydrocarbons such as light isoparaffin, liquid paraffin, squalane and heavy isoparaffin. Diesters of dihydric alcohols such as neopentyl glycol diisooctanoate, neopentyl glycol diisostearate, ethylene glycol diisostearate, propylene glycol diolate and the like, and lower esters such as isopropyl myristate Esters of alcohols and fatty acids having 8 to 14 carbon atoms, jojoba oil, cetyl isooctanate, etc., fatty acids having 8 to 24 carbon atoms and higher alcohols having 8 to 24 carbon atoms, olive oil, castor oil, glyceryl triisooctanoate, etc. Glycerin tri fat Esters, diglycerin tetraisostearate and diglycerin tetrafatty acid esters such as diglycerin tetraoleate, triglycerin pentaisostearate, triglycerin pentafatty acid esters of triglycerin pentaoleate, dimethicone, cyclomethicone, phenylmethicone The silicone etc. can be illustrated suitably. These oily components may contain only one species or a combination of two or more, but more preferably, hydrocarbons, esters of fatty acids and higher alcohols having 8 to 24 carbon atoms, glycerol tris. Fatty acid esters, diglycerin tetra fatty acid esters, triglycerin penta fatty acid esters or silicones can be preferably exemplified, and silicones are more preferred. In the cosmetic of the present invention, the oily component is uniformly dispersed in the preparation due to the effect of the powder, and immediately after use, it changes from gel to liquid thixotropic, so that the oil stains attached to the skin are removed. It has the effect of quickly detaching from the skin due to its effect. In order to exhibit such an action, it is necessary to be within the range of the content.

(3) Hydrophilic gelling agent which is an essential component of the cosmetic of the present invention The cosmetic of the present invention contains 0.1 to 1% by weight of hydrophilic gelling agent, more preferably 0.3 to 0.8% by weight. It is characterized by doing. Here, the hydrophilic gelling agent refers to a component blended mainly for the purpose of gelation in an aqueous preparation used in the field of skin external preparations such as cosmetics and skin external medicines. Specifically, cationized cellulose, hydroxyethyl cellulose, starch, ionized starch derivatives, block polymer of starch and synthetic polymer, hyaluronic acid, carrageenan (copper, iota, lambda form), locust bean gum, xanthan gum, guar gum, gellan gum , Tamarindough, glucomannan, chitin, chitosan, pullulan, tuberose polysaccharide, water-soluble collagen, alkyl-modified carboxyvinyl polymer, Ernest gum, gelatin, pectin, agarose, or salts thereof are preferred examples it can. These hydrophilic gelling agents can contain only one species or a combination of two or more species, but can be alkyl-modified carboxyvinyl polymer, hyaluronic acid, water-soluble collagen These combinations can be particularly preferably exemplified. An aqueous solution of hyaluronic acid and water-soluble collagen is already commercially available, and those can be used. Preferred examples of such a hyaluronic acid aqueous solution include “Hyaluronic acid FCH201” manufactured by Food Chemifa Co., Ltd., and examples of the water-soluble collagen aqueous solution include “Pancogen Marine” manufactured by GATTEFOSSE.

(4) Polyoxyethylene fatty acid glyceryl which is an essential component of the cosmetic of the present invention The cosmetic of the present invention contains 10 to 25% by mass of polyoxyethylene fatty acid glyceryl, more preferably 15 to 23% by mass. To do. Here, the suitable fatty acid moiety is selected from lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, triisostearic acid, behenic acid, caprylic acid, caproic acid, oleic acid, linoleic acid, linolenic acid, and the like. 1 type or 2 types or more can be exemplified, and these are hydrolyzed natural or processed oils such as beef tallow, coconut oil, olive oil, hydrogenated products thereof, etc. It can also be used after purification. Among these polyoxyethylene fatty acid glyceryls, particularly preferred are fatty acid glyceryl derived from polyoxyethylene coconut oil, glyceryl of isostearic acid, and glyceryl of triisostearic acid. Such polyoxyethylene fatty acid glyceryl is a raw material widely used as a nonionic surfactant in the field of skin external preparations such as cosmetics, and this is already commercially available. Can do. As such polyoxyethylene fatty acid glyceryl, commercially available products include “Cethiol HE” manufactured by Cognis Japan Co., Ltd., “Hiber Oil HE” manufactured by Koyo Fine Chemical Co., Ltd., “Saracos GE318 manufactured by Nisshin Oillio Group Co., Ltd. "Saracos GE118P" etc. can be illustrated preferably. These polyoxyethylene fatty acid glycerins can contain only one species, or can contain two or more species in combination. These polyoxyethylene fatty acid glyceryls are excellent in the action of dissolving fat stains without destroying the beautiful gel structure. In order to exhibit such an action, it is necessary to be within the range of the content.

(5) Cosmetics for cleansing according to the present invention The cosmetics according to the present invention contain the above four essential components. As the form of the cosmetic of the present invention, it is most preferable to take the gel form because it has been researched and developed as a cosmetic suitable for the gel form, but has the quality factor of the gel form cosmetic. If so, don't be particular about the dosage form. In the cosmetics of this invention, the arbitrary component normally used with cosmetics other than this component can be contained in the range which does not impair the effect of this invention. Examples of such optional components include thickeners such as polyacrylic acid, polyglutamic acid, polyvinyl alcohol, carboxymethylcellulose, and alginic acid, polyethylene glycol, glycerin, 1,3-butylene glycol, erythritol, sorbitol, xylitol, and maltitol. , Polyhydric alcohols such as propylene glycol, dipropylene glycol, diglycerin, isoprene glycol, 1,2-pentanediol, 2,4-hexanediol, 1,2-hexanediol, 1,2-octanediol, pyrrolidone carvone Moisturizing ingredients such as sodium acid, lactic acid and sodium lactate, lower alcohols such as ethanol and isopropanol, vitamin A or its derivatives, vitamin B ₆ hydrochloride, vitamin B ₆ tripalmitate, bitami Vitamin B such as vitamin B ₆ dioctanoate, vitamin B ₂ or derivatives thereof, vitamin B ₁₂ , vitamin B ₁₅ or derivatives thereof, vitamin E such as α-tocopherol, β-tocopherol, γ-tocopherol, vitamin E acetate, vitamin Preferred examples include vitamins such as D, vitamin H, pantothenic acid, panthetin, and pyrroloquinoline quinone, and antibacterial agents such as phenoxyethanol. Of these, particularly preferred components are polyhydric alcohols, and particularly preferred is dipropylene glycol. This is because such polyhydric alcohols such as dipropylene glycol enhance the cleansing action of polyoxyethylene fatty acid glyceryl, which is an essential component of the cosmetic of the present invention. The content of polyhydric alcohol in the cosmetic of the present invention is preferably 10 to 50% by mass, more preferably 25 to 40% by mass.

  In the following, the present invention will be described in more detail, but it goes without saying that the present invention is not limited only to such examples.

<Examples 1-9>
The cosmetics for cleansing according to the present invention were prepared according to the formulation shown in Table 1 below. That is, the temperature is adjusted to 70 ° C., and b is added to neutralize to prepare a gel, stirred and cooled, further added with c and stirred to obtain cosmetics 1 to 9 for cleansing of the present invention. It was. In the same manner, Comparative Examples 1 to 7 were also prepared according to the formulations shown in Table 2.

<Test example>
The cleansing cosmetics of each Example and Comparative Example obtained above were evaluated for detergency, usability and skin irritation.

(1) Detergency and Usability A lip color of the prescription shown in Table 3 below is applied to the inner side of the upper arm in a size of 2 cm × 4 cm, and the cleansing makeup of Examples 1-9 and Comparative Examples 1-7 is applied to this part. It was evaluated using the charge. The evaluation items were a change from gel to liquid when picked up, ease of lip color removal, ease of washing after cleansing, and refreshment after use. The evaluation criteria were a four-step evaluation: ◎: very good, ○: good, △: slightly good, x: not good.

(2) Skin irritation Stinging tests were performed on the cleansing cosmetics of Examples 1 to 9 and Comparative Examples 1 to 7. The panelists used seven people who were sensitive to chemical stimulation, soaked cleansing cosmetics on a cotton swab, touched the inside of the lower arm of the paneler lightly, and examined whether or not they felt irritation. .

The results are shown in Table 4. It can be seen that the cleansing cosmetic of the present invention is excellent in detergency, usability and skin irritation.

Claims (4)

A water-in-oil type cosmetic composition for cleansing, 1) and trimethyl silylated powder 0.01 wt%, 2) and 1-8% by weight oil component liquid at 1 atm 25 ° C., 3 ) Containing 0.1 to 1% by weight of hydrophilic gelling agent and 4) 10 to 25% by weight of polyoxyethylene fatty acid glyceryl , and the hydrophilic gelling agent is cationized cellulose, hydroxyethyl cellulose, starch, ionized Starch derivatives, block polymers of starch and synthetic polymers, hyaluronic acid, carrageenan (copper, iota, lambda form), locust bean gum, xanthan gum, guar gum, gellan gum, tamarindow, glucomannan, chitin, chitosan, pullulan, tube Loose polysaccharide, water-soluble collagen, alkyl-modified carboxyvinyl poly Chromatography, Ernest gum, gelatin, pectin, agarose, and wherein the at least one selected from these salts, the cosmetic for cleansing. The cosmetic for cleansing according to claim 1, wherein the cosmetic is in a gel form. The powder is one or two selected from mica, sericite, kaolin, silica, alumina, calcium carbonate, magnesium carbonate, calcium silicate, magnesium silicate, bentonite, starch, cellulose, lactose, sucrose and dextrin. It is the above, The cosmetics for cleansing of Claim 1 or 2 characterized by the above-mentioned. The oil component which is liquid at 1 atm and 25 ° C. is composed of hydrocarbon, fatty acid and higher alcohol ester having 8 to 24 carbon atoms, glycerin trifatty acid ester, diglycerin tetrafatty acid ester, triglycerin pentafatty acid ester and silicone. The cosmetic for cleansing according to any one of claims 1 to 3, wherein one or two or more types are selected.