JP2017109962A - Gelatinous cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gelatinous cosmetic that has a smooth good spreadability, a thickness feeling, and a close contact feeling.SOLUTION: The present invention provides a gelatinous cosmetic comprising an (acrylic acid hydroxyethyl/acryloyldimethyltauric Na) copolymer and a polyhydric alcohol, the gelatinous cosmetic comprising, as the polyhydric alcohol, glycerol, and at least one selected from sorbitol, maltitol, and diglycerol.SELECTED DRAWING: None

Description

  The present invention relates to a gel cosmetic.

In the field of cosmetics, there is a dosage form called gel (gel) separately from cream and milky lotion. Gel cosmetics are cosmetics that are transparent or translucent and have a highly viscous jelly shape. Such gel cosmetics are prepared by various production methods. Gels in which a moisturizing agent such as a polyhydric alcohol and cosmetic ingredients such as vitamins and water are made viscous by appropriately selected water-soluble polymers are sold as massage packs and cosmetic gel cosmetics. Among such gel-like cosmetics, especially gel-like cosmetics that have an extremely low oil content and have a transparent to translucent appearance tend to be beautiful and favored by consumers.
An acrylic polymer is known as the water-soluble polymer. For example, a gel-like skin cosmetic that uses an acrylic polymer compound and a water-soluble polysaccharide in combination is known as a gel-like skin cosmetic that has a high viscosity but has no unpleasant feeling of use (Patent Document 1). . As acrylic polymers, acryloyldimethyltaurate / vinylpyrrolidone copolymer, alkyl acrylate / alkyl methacrylate / polyoxyethylene copolymer, polyacrylic acid or a salt thereof, (hydroxyethyl acrylate / acryloyldimethyl) One or more thickeners selected from the group consisting of (taurine Na) copolymer, (Na acrylate / acryloyldimethyltaurine) copolymer, polyacrylamide, (acrylamide / ammonium acrylate) copolymer, hydroxypropylcellulose and hydroxypropylmethylcellulose; A gel-like fragrance composition containing water, a fragrance, and a C 1-3 trihydric alcohol is known (Patent Document 2). Furthermore, Patent Document 3 describes a transparent self-suntan aqueous gel containing an acrylic acid polymer as an acrylic polymer and blended with a self-suntan agent. However, these gel compositions have a problem in feeling of use such as a feeling of thickness and a feeling of adhesion.

JP 2013-107862 A JP 2013-249259 A Japanese Patent No. 3876266

The present inventor has found that a cosmetic composition containing (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, diglycerin, sorbitol and / or maltitol has a significantly increased viscosity, and further has no stringiness and good usability. I found out that it becomes a cosmetic. In addition, in gel-like cosmetics containing (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer and polyhydric alcohol, when glycerin is highly blended, the viscosity increase of (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer is suppressed. I found the phenomenon.
Gel obtained by combining one or more polyhydric alcohols selected from sorbitol, maltitol, and diglycerin with a composition containing this (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer and highly blended glycerin. When applied to the skin and lips, the cosmetics have a smooth elongation and a good thickness, and when the gel cosmetics are combined with silylated silica, a better adhesion is obtained. As a result, the present invention was completed.

  That is, an object of the present invention is to provide a gel-like cosmetic material that has a good smooth elongation and has a feeling of thickness when applied and a high adhesion feeling.

The main configuration of the present invention is as follows.
(1) Gel cosmetics containing (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer and polyhydric alcohol, containing glycerin as the polyhydric alcohol, and one or more selected from sorbitol, maltitol and diglycerin A gel-like cosmetic comprising
(2) The gel cosmetic according to (1), wherein the blending ratio of glycerin and one or more polyhydric alcohols selected from sorbitol, maltitol and diglycerin is 20: 1 to 4: 1.
(3) The gel cosmetic as described in (1) or (2) containing 70 to 90% by mass of a polyhydric alcohol.
(4) The gel cosmetic according to any one of (1) to (3), which contains 50 to 75% by mass of glycerin.
(5) The gel cosmetic according to any one of (1) to (4), comprising 0.75 to 1.2% by mass of a (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer.
(6) The gel cosmetic according to any one of (1) to (5), further comprising silylated silica.
(7) The gel cosmetic according to any one of (1) to (6), wherein the gel does not contain an oil or the content of the oil is less than 1% by mass.
(8) The gel cosmetic according to any one of (1) to (7), wherein the water content is 25% by mass or less.
(9) Gel shape according to any one of (1) to (8), wherein the viscosity measured with a B-type viscometer (measurement condition: No. 4 rotor, 6 rpm, 30 seconds, 25 ° C.) is 48000 to 95000 mPa · s. Cosmetics.
(10) The gel cosmetic according to any one of (1) to (9), which is used for lips.
(11) The gel cosmetic according to any one of (1) to (10), which is for a tube container.

By taking the configuration of the present invention, it is possible to obtain a gel-like cosmetic material having smooth elongation, a feeling of thickness, and a feeling of adhesion.
Further, the gel cosmetic of the present invention has a smooth moisturizing effect, thickness and adhesion, and has a high moisturizing effect due to polyhydric alcohol such as glycerin, and is particularly suitable as a cosmetic for lips. is there.
Furthermore, the viscosity of 48,000 to 95,000 mPa · s exhibited by the gel cosmetic of the present invention is optimal as a cosmetic filled in a tube container, and there is no dripping, and an appropriate amount can be easily pushed out of the tube during use.

The present invention relates to a gel cosmetic comprising (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer and a polyhydric alcohol, comprising glycerin as the polyhydric alcohol, and further selected from sorbitol, maltitol and diglycerin The present invention relates to a gel cosmetic characterized by containing the above.
Below, the component of this invention is demonstrated in detail.
<(Hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer>
The (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer used in the present invention is a copolymer of hydroxyethylacrylic acid and sodium acryldimethyltaurine, and a commercially available one can be used. For example, SIMULGEL NS, SEPINOV EMT10 manufactured by SEPPIC (France) can be used. SIMULGEL NS (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer 37.5% by mass, squalane 25.5% by mass, polysorbate 60 5.5% by mass, water 30% by mass, sorbitan isostearate 1.5% by mass % Is a mixed raw material. SEPINOV EMT10 is 100% by weight of (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer.
The gel cosmetic of the present invention preferably contains 0.75 to 1.2% by mass, more preferably 0.9 to 1% by mass of (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer. (Hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer can be used in a cosmetic amount that is optimal for cosmetics with the polyhydric alcohol selected in the present invention in the blending amount within this range. Therefore, it is uneconomical to add more than 1.2% by mass, and an unpleasant feeling of use may occur.

<Polyhydric alcohol>
In the present invention, glycerin is blended as a polyhydric alcohol in order to obtain a gel cosmetic. Furthermore, 1 or more types of polyhydric alcohol chosen from sorbitol, maltitol, and diglycerin is mix | blended.
(1) Glycerin Glycerin is a trivalent alcohol. Glycerin is widely used as a cosmetic raw material. Commercially available products such as concentrated glycerin for cosmetics manufactured by Lion Corporation and concentrated glycerin manufactured by Kao Corporation can be used.

(2) Diglycerin Diglycerin is a polyhydric alcohol having four hydroxyl groups, produced by subjecting two molecules of glycerin to a dehydration condensation reaction, distillation and purification. Commercially available cosmetic standard products such as diglycerin 801 manufactured by Sakamoto Pharmaceutical Co., Ltd. can be used.

(3) Sorbitol Sorbitol is a kind of sugar alcohol obtained by reducing glucose and converting an aldehyde group into a hydroxy group. Also called sorbit or glucitol. Commercial products such as Sorbit D-70 manufactured by Mitsubishi Corporation Foodtech Co., Ltd. can be obtained and used. Sorbit D-70 is a mixed raw material composed of 70% by mass of sorbitol and 30% by mass of water.

(4) Maltitol Maltitol is a kind of sugar alcohol obtained by catalytic reduction under high pressure using maltose, a disaccharide produced from starch by enzymatic saccharification. Commercially available products such as Amalty Syrup manufactured by Mitsubishi Corporation Foodtech Co., Ltd. can be obtained and used. Amalty syrup is a mixed raw material composed of 75% by mass of maltitol and 25% by mass of water.
In the present invention, in addition to glycerin and these three components, an appropriate amount of other polyhydric alcohols can be optionally added as long as the effects of the present invention are not impaired. Examples of such polyhydric alcohols include 1,3-butylene glycol, 1,2-pentanediol, dipropylene glycol, and propylene glycol. Other polyhydric alcohols may be added for antibacterial purposes.

The gel cosmetic of the present invention preferably contains 70 to 90% by mass of polyhydric alcohol with respect to the total mass of the cosmetic. Among these, glycerin, which is an essential component, is compounded in an amount of 50 to 75% by mass with respect to the total amount of the composition. It is preferable to do. A polyhydric alcohol such as 1,3-butylene glycol optionally blended for the purpose of imparting antibacterial properties to the composition is included in this blending amount.
The blending ratio of “glycerin” and “one or more polyhydric alcohols selected from diglycerin, sorbitol and maltitol” is preferably 20: 1 to 4: 1. When the ratio is within this range, the content of the copolymer is reduced while suppressing the increase in the viscosity of the copolymer (hydroxyethyl acrylate / acryloyldimethyltaurine Na) in a system containing a large amount of polyhydric alcohol (hydroxyethyl acrylate / acryloyldimethyltaurine Na). It can be increased, and an appropriate viscosity, smooth elongation, a feeling of use with a feeling of thickness and an adhesion can be realized, which is preferable.

<Silylated silica>
In the present invention, it is preferable to further add silylated silica since the adhesion is further improved. It is obtained by treating silicic anhydride with dimethylchlorosilane or trimethylchlorosilane, is a white fluid powder, and has a function of thickening ester oil or silicone oil. It is preferable to mix 0.01 to 0.5 mass%, more preferably 0.05 to 0.3 mass%. More specifically, a product sold under the name Sunsphere (registered trademark) H33 by Asahi Glass Co., Ltd. and Dow Corning VM-2270 Aerogel Fine Particles by Dow Corning can be exemplified.

  In order to make the gel cosmetic of the present invention a transparent gel cosmetic, it is preferable not to contain an oil agent or to make it less than 1% by mass. This transparent gel cosmetic is a moisturizing cosmetic having a sufficient moisturizing effect even when it does not contain an oil. Further, when the transparency may be reduced or for the purpose of variation in the feeling of use, an oil agent of 1% by mass or more may optionally be blended.

  In this invention, it is preferable that the compounding quantity of water shall be 25 mass% or less. If the amount of water is too large, the gel-like cosmetic may have a reduced thickness or adhesion.

  The gel cosmetic of the present invention has a viscosity of 48000 to 95000 mPa · s when measured under the conditions of No. 4 rotor, rotational speed 6 rpm, 30 seconds, 25 ° C. using a B-type viscometer. Gel cosmetics exhibiting this viscosity range are preferred as cosmetics filled in tube containers.

<Optional component>
The gel cosmetics of the present invention can contain fats and oils such as vegetable oils, hydrocarbons, higher fatty acids, higher alcohols, and silicones within a range that does not impair the effects of the present invention. Anionic surfactant, cationic surfactant, amphoteric surfactant, nonionic surfactant, preservative, sequestering agent, water-soluble polymer other than (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, thickening An agent, a powder component, an ultraviolet absorber, an ultraviolet blocker, a fragrance, a pH adjuster, a desiccant and the like can be contained. In addition, vitamins, skin activators, blood circulation promoters, resident bacteria control agents, active oxygen scavengers, anti-inflammatory agents, anticancer agents, whitening agents, bactericides, and other medicinal and physiologically active ingredients may be included. it can.

  Examples of fats and oils include camellia oil, evening primrose oil, macadamia nut oil, olive oil, rapeseed oil, corn oil, sesame oil, jojoba oil, germ oil, wheat germ oil, glycerin trioctanoate, cocoa butter, coconut oil, hardened Solid oils such as coconut oil, palm oil, palm kernel oil, owl, owl kernel oil, hydrogenated oil, hydrogenated castor oil, beeswax, candelilla wax, cotton wax, nutca wax, lanolin, lanolin acetate, liquid lanolin, sugarcane wax, etc. Waxes.

  Examples of hydrocarbons include liquid paraffin, squalene, squalane, and microcrystalline wax.

  Examples of higher fatty acids include lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), and the like.

  Examples of the higher alcohol include linear alcohols such as lauryl alcohol, stearyl alcohol, cetyl alcohol, and cetostearyl alcohol, and branched chain alcohols such as monostearyl glycerin ether, lanolin alcohol, cholesterol, phytosterol, and octyldodecanol.

  Examples of silicone include linear polysiloxanes such as dimethylpolysiloxane and methylphenylpolysiloxane, and cyclic polysiloxanes such as decamethylcyclopentasiloxane.

  Examples of the anionic surfactant include fatty acid salts such as sodium laurate, higher alkyl sulfates such as sodium lauryl sulfate, alkyl ether sulfates such as POE lauryl sulfate triethanolamine, N-acyl sarcosine acid, sulfosuccinate , N-acyl amino acid salts and the like.

  Examples of the cationic surfactant include alkyltrimethylammonium salts such as stearyltrimethylammonium chloride, benzalkonium chloride, and benzethonium chloride.

  Examples of amphoteric surfactants include betaine surfactants such as alkyl betaines and amide betaines.

  Examples of nonionic surfactants include sorbitan fatty acid esters such as sorbitan monooleate and hydrogenated castor oil derivatives.

  Examples of preservatives include methyl paraben and ethyl paraben.

  Examples of the sequestering agent include edetates such as disodium ethylenediaminetetraacetate, edetic acid, and sodium edetate.

  The water-soluble polymer may be a natural polymer, a semi-synthetic polymer, or a synthetic polymer. Examples of the natural polymer include tragacanth gum, karaya gum, xanthan gum, guar gum, cationized guar gum, anionized guar gum, and tara gum. Arabic gum, tamarind gum, juran gum, locust bean gum, carrageenan, quince seed, dextran, and the like. Examples of the semisynthetic polymer include hydroxypropylmethylcellulose, sodium carboxymethylcellulose, hydroxypropylcellulose, methylcellulose, hydroxyethylcellulose, cationized cellulose, propylene glycol alginate, sodium alginate, bentonite, and the like. Examples of the synthetic polymer include carboxyvinyl polymer, polyvinyl pyrrolidone, polyvinyl alcohol, dialkyl polyethylene glycol, polyoxyethylene dioleic acid methyl glucoside, polyethylene glycol, polyethylene glycol distearate, synthetic smectite, and the like.

Powder components include iron oxide, gunjou, chromium oxide, hydroxyapatite, silica, talc, kaolin, boron nitride, mica, crystalline cellulose powder, silk powder, polyalkyl acrylate powder, nylon powder, polyethylene powder Body, polystyrene powder and the like. Further, a surface-treated powder subjected to silicone treatment, fluorine treatment, or the like may be used. Moreover, you may use the composite powder which consists of multiple types of insoluble powder.
Examples of the ultraviolet absorber include paraaminobenzoic acid, phenyl salicylate, isopropyl paramethoxycinnamate, octyl paramethoxycinnamate, 2,4-dihydroxybenzophenone, and the like.

The medicinal properties include vitamin A oil, vitamin A such as retinol, vitamin B2 such as riboflavin, vitamin B6 such as pyridoxine hydrochloride, L-ascorbic acid, L-ascorbic acid phosphate, L-ascorbic acid mono Vitamin C such as palmitic acid ester, L-ascorbic acid dipalmitic acid ester, L-ascorbic acid-2-glucoside, pantothenic acid such as calcium pantothenate, vitamin D such as vitamin D2, cholecalciferol; α-tocopherol And vitamins such as vitamin E such as tocopherol acetate and DL-α-tocopherol nicotinate.
Also, whitening agents such as placenta extract, glutathione, and yukinoshita extract, skin activators such as royal jelly, beech tree extract, blood circulation promoters such as capsaicin, gingeron, cantalis tincture, ictamol, caffeine, and γ-oryzanol tannate And glycyrrhizic acid derivatives, glycyrrhetinic acid derivatives, anti-inflammatory agents such as azulene, amino acids such as arginine, serine, leucine and tryptophan, maltose sucrose condensates of resident bacteria control agents, lysozyme chloride and the like.
In addition, chamomile extract, parsley extract, wine yeast extract, grapefruit extract, honeysuckle extract, rice extract, grape extract, hop extract, rice bran extract, loquat extract, buckwheat extract, yakuinin extract, assembly extract, merilot extract, birch extract, licorice extract, peony extract , Savonso extract, loofah extract, capsicum extract, lemon extract, gentian extract, perilla extract, aloe extract, rosemary extract, sage extract, thyme extract, tea extract, seaweed extract, cucumber extract, carrot extract, carrot extract, maronier extract, Examples include various extracts such as chammel extract and mulberry extract.

  The gel cosmetic of the present invention can be a skin cosmetic such as a moisturizing gel, a whitening gel, a pack cosmetic, and a gel mask, and a lip cosmetic. Moreover, it can be set as a pharmaceutical and a quasi-drug.

  The cosmetic of the present invention can be produced by a conventional method.

The present invention will be specifically described below with reference to examples and comparative examples.
Table 1 shows compositions of Examples 1 to 6, and Table 2 shows compositions of Comparative Examples 1 to 17.

  Cosmetics having the compositions of Examples and Comparative Examples shown in Tables 1 and 2 were prepared by a conventional method. In addition, the unit of the compounding amount is indicated by mass% with respect to the total amount of the composition.

The viscosity of each cosmetic was measured, and “elongation”, “thickness” and “adhesion” were evaluated as sensory evaluations by a specialized panel. The test method and evaluation criteria were as follows.
[Measurement of viscosity]
The cosmetic was filled in a glass container having a diameter of about 3 cm and stored at 25 ° C., and the viscosity on the day after production was measured with a B-type viscometer (No. 4 rotor, 6 rpm, 30 seconds).

[sensory evaluation]
Evaluation was carried out by two skilled professional sensory evaluators.

(Elongation)
○: Elongates smoothly ×: Does not grow smoothly

(Thickness)
A certain amount of cosmetic was applied to the inner side of the forearm, and the thickness of the cosmetic felt during application was evaluated according to the following criteria.
○: There is a sense of thickness
Δ: Slightly thick ×: No thick

(Adhesion)
A certain amount of cosmetic was applied to the inner side of the forearm, and after application, whether or not the cosmetic felted to be in close contact with the skin was tapped with a finger pad and evaluated according to the following criteria.
○: There is a feeling of close contact
Δ: Slightly close feeling ×: No close feeling

  The sensory evaluation results by the two people all agreed. The measurement results and sensory evaluation results are shown in the lower part of Tables 1 and 2 above. In addition, sensory evaluation described the coincident evaluation result.

[result]
As for “elongation” and “feeling of thickness”, Examples 1 to 5 were evaluated as “◯”, and Example 6 was evaluated as “Δ” as to feeling of thickness. “Adhesion” was evaluated as “Δ” in Examples 1, 2 and 6, and “◯” in Examples 3 to 5. The “Δ” evaluation of Examples 1, 2, and 6 is “Slightly close”, which is a slight difference from the “Good” evaluation (with close), and there was no practical problem. The viscosities of the cosmetics of Examples 1 to 6 were 48800 to 91400 mPa · s. This viscosity was suitable for filling a tube container for use. In addition, the cosmetics of Examples 1 to 6 all had a beautiful gel shape with a transparent appearance.

Comparative Examples 1 to 4 are compositions containing 48 to 80% by mass of diglycerin instead of glycerin and containing other polyhydric alcohols. All of these compositions had viscosities exceeding 100,000 mPa · s and were unsuitable for filling into tube containers. The evaluation of [elongation] was also “x”.
Comparative Example 5 is a composition in which 90% by mass of diglycerin is blended and no other polyhydric alcohol is blended. In this composition, the viscosity was 73300 mPa · s, and the “adhesion feeling” was evaluated as “x”.
Comparative Example 6 is a composition in which 90% by mass of maltitol (75% aqueous solution) is blended in place of the diglycerin of Comparative Example 5. With this composition, the viscosity was 81300 mPa · s, and “elongation” and “adhesion” were “x”. Comparative Example 7 is a composition in which 90% by mass of sorbitol (70% aqueous solution) is blended in place of the diglycerin of Comparative Example 5. With this composition, the viscosity was 51700 mPa · s, and the “elongation” was “x”. Comparative Example 8 is a composition containing 90% by mass of glycerin and containing no other polyhydric alcohol. In this composition, the viscosity was as low as 31300 mPa · s, and the evaluation of “thickness” and “adhesion” was “x”. Comparative Example 9 is a composition in which 90% by mass of 1,3-butylene bricol was blended in place of the diglycerin of Comparative Example 5. With this composition, the gelation intended in the present invention did not occur.
(Comparative Examples 10 to 15 in which the blending amount of the copolymer (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer was 0.975% by mass, the same as in the Examples), and the blending amount of the polymer was increased to 1.5% by mass. In the tests of Examples 16 and 17, whether or not the feeling of use is improved by increasing the amount of the (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer was tested, but “elongation”, “thickness” Any of the “adhesion feelings” had an evaluation of “x”, and a cosmetic material having a desired feeling of use could not be obtained.

(Summary)
In Comparative Examples 5 to 9, diglycerin 90% by mass (Comparative Example 5), maltitol 67.5% by mass (Comparative Example 6), sorbitol 63% by mass (Comparative Example 7), and glycerin 90% by mass as polyhydric alcohols (Comparative Example 5) Comparative Example 8) is a composition containing 90% by mass of 1,3-butylene glycol (Comparative Example 9), and the viscosity of the composition is 73300 mPa · s (Comparative Example 5), 81300 mPa · s (Comparative Example 6), 51700 mPa S (Comparative Example 7), 31300 mPa · s (Comparative Example 8) and no gelation (Comparative Example 9).
From Comparative Examples 5 to 9, it was found that the viscosity increase of the copolymer (hydroxyethyl acrylate / acryloyldimethyltaurine Na) can be suppressed by adding glycerin in a high amount. Comparative Example 8 containing 90% by mass of glycerin had a good smooth elongation, but the thickness and adhesion were insufficient, and the viscosity was low to fill the tube container. When the xanthan gum was deleted from the composition of Comparative Example 8 in which the evaluation of elongation was “◯” (hydroxyethyl acrylate / acryloyldimethyltaurine Na) and the blending amount of the copolymer was increased to 1.5% by mass, the sense of thickness was “○ ”Was improved, but the adhesion was not improved, and the elongation was worsened and evaluated as“ x ”(Comparative Example 16). Moreover, when the glycerin of Comparative Example 16 was replaced with water, the elongation was evaluated as “◯”, but the thickness and the adhesion were evaluated as “X” (Comparative Example 17). The same results were obtained in Comparative Example 15 in which the blending amount of (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer was 0.975% by mass. For this reason, in order to maintain good smooth elongation and good thickness and adhesion, glycerin is selected as the polyhydric alcohol, and (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer is selected. It was found that it could not be achieved simply by increasing the amount of.
Next, in Comparative Examples 5 to 9, the blending amount of the (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer is 0.6% by mass and 0.1% by mass of xanthan gum, but no xanthan gum (acrylic). The composition of the hydroxyethyl / acryloyldimethyltaurine Na) copolymer was increased to 0.975% by mass so that the pure content of the polyhydric alcohol was within the range of 70 to 75% by mass. did. The pure polyhydric alcohol content in the range of 70 to 75% by mass is a 70% aqueous solution (sorbitol) or 75% aqueous solution (maltitol), which is a widely used commercial product. This is because of Comparative Examples 10 to 13 are polyglycol 75% by mass (Comparative Example 10), maltitol 73.05% by mass (Comparative Example 11), sorbitol 68.18% by mass (Comparative Example 12), and glycerin 75% as polyhydric alcohol. % (Comparative Example 13), but the viscosity of the composition is 78500 mPa · s (Comparative Example 10), 231000 mPa · s (Comparative Example 11), 138900 mPa · s (Comparative Example 12), 81200 mPa · s ( Comparative Example 13). Even in this test, it was confirmed that thickening of glycerin (hydroxyethyl acrylate / acryloyldimethyltaurine Na) suppresses the increase in viscosity of the copolymer (Comparative Example 13), but diglycene also has (hydroxyethyl acrylate / There was a tendency to suppress thickening of the acryloyldimethyltaurine Na) copolymer (Comparative Example 10). And both the comparative example 10 and the comparative example 13 were evaluation of "x" in a feeling of thickness and a feeling of adhesion. Comparative Example 11 has a composition close to that of Comparative Example 6, but the usability (thickness feeling) evaluation deteriorated from Δ to x. Comparative Example 12 has a composition close to that of Comparative Example 7, but the usability (thickness) evaluation was improved from Δ to ◯.
Based on these results, Comparative Examples 1 to 4 and Examples 1 to 6 examined compositions in which diglycerin and glycerin were highly blended with sorbitol and maltitol. Compositions with high blending of diglycerin are Comparative Examples 1 to 4, and compositions with high blending of glycerin are Examples 1 to 6.
First, when comparative examples 1 to 4 were prepared by combining diglycerin in a high amount and combining a plurality of sorbitols and maltitols, it was found that the feeling of thickness and the feeling of adhesion were improved. And the growth has deteriorated. The viscosities of the compositions of Comparative Examples 1 to 4 are 148000 mPa · s (Comparative Example 1), 128400 mPa · s (Comparative Example 2), 115700 mPa · s (Comparative Example 3), and 133000 mPa · s (Comparative Example 4). This viscosity was unsuitable for filling the tube container.
On the other hand, the compositions of Examples 1 to 6, which are mainly blended with glycerin and further blended with a combination of one or more sorbitol, maltitol and diglycerin, have a viscosity of 48800 to 91400 mPa · s and a smooth elongation. , Good thickness, and good adhesion. This smooth elongation and good thickness feeling suppress the increase in viscosity (hydroxyethyl acrylate / acryloyldimethyltaurine Na), and the amount of the copolymer is about 1.5 times the amount of the composition of the comparative example. This is probably because the combined properties of sorbitol, maltitol, and diglycerin are effective. Furthermore, since the compositions of Examples 3 and 4 formulated with a combination of silylated silica were evaluated to have a better feeling of adhesion than Examples 1 and 2, silylated silica was further added to the constitution of the present invention. It was thought that blending showed an effect in improving the adhesion of the gel cosmetic.

  From the above results, when combining (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer, glycerin and one or more selected from sorbitol, maltitol and diglycerin, there is a smooth elongation, a feeling of thickness, and a feeling of adhesion. It turned out that it becomes a gel-like cosmetics with a favorable usability. Moreover, it turned out that it becomes a viscosity which is easy to use by filling a tube.

By adopting the constitution of the present invention, a gel-like cosmetic material can be obtained which has a smooth elongation and a feeling of thickness and adhesion when applied to the skin and lips.
The gel-like cosmetic composition of the present invention has a good feeling of use and a high moisturizing effect due to the high blending of glycerin, so it is particularly suitable as a cosmetic composition for lips.
Furthermore, the viscosity of the gel cosmetic of the present invention was optimal as a cosmetic filled in a tube container.

Formulation Example 1
Moisturizing gel for lips (Compounding ingredients) (mass%)
1. SEPINOV EMT10 (SEPPIC) 1.2
2. Glycerin 70
3. Maltitol (75% aqueous solution) 5
4.1,2-Pentanediol 1
5). Sorbitol (70% aqueous solution) 5
6). Dipotassium glycyrrhizinate 0.2
7). The components of purified water residue 1-7 were mixed to obtain a lip moisturizing gel. The moisturizing gel for lips of Formulation Example 1 filled in a tube container was excellent in smooth use, excellent in feeling of thickness, and feeling of adhesion, and further in an excellent feeling of use that maintained a moist feeling for a long time.

Formulation Example 2
Moisturizing gel for lips (Compounding ingredients) (mass%)
1. SIMULGEL NS (SEPPIC) 3
2. Glycerin 60
3. Diglycerin 10
4.1,2-Pentanediol 1
5). Maltitol (75% aqueous solution) 5
6). Dipropylene glycol 2
7). Xanthan gum 0.2
8). Eucalyptus oil 0.01
9. The components of purified water residue 1-9 were mixed to obtain a lip moisturizing gel. The lip moisturizing gel of Formulation Example 2 filled in the tube container was excellent in smooth use, excellent in thickness, feeling of adhesion, and excellent in use feeling that kept moist for a long time.

Claims (11)

  Gel cosmetics containing (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer and polyhydric alcohol, containing glycerin as polyhydric alcohol, and further containing one or more selected from sorbitol, maltitol and diglycerin Gel-like cosmetics characterized by that.   The gel cosmetic according to claim 1, wherein the blending ratio of glycerin and one or more polyhydric alcohols selected from sorbitol, maltitol and diglycerin is 20: 1 to 4: 1.   The gel cosmetic according to claim 1 or 2, which contains 70 to 90% by mass of a polyhydric alcohol.   The gel cosmetic according to any one of claims 1 to 3, comprising 50 to 75% by mass of glycerin.   The gel cosmetic according to any one of claims 1 to 4, comprising 0.75 to 1.2% by mass of (hydroxyethyl acrylate / acryloyldimethyltaurine Na) copolymer.   Furthermore, the gel cosmetics in any one of Claims 1-5 containing silylated silica.   The gel cosmetic according to any one of claims 1 to 6, which does not contain an oil agent or has a content of the oil agent of less than 1% by mass.   Gel content cosmetics given in any 1 paragraph of Claims 1-7 whose content of water is 25 mass% or less.   The gel cosmetic according to any one of claims 1 to 8, wherein the viscosity measured by a B-type viscometer (measurement condition: No. 4 rotor, 6 rpm, 30 seconds, 25 ° C) is 48000 to 95000 mPa · s.   It is a lip use, The gel cosmetics in any one of Claims 1-9.   It is for tube containers, The gel cosmetics in any one of Claims 1-10.