JP3965825B2 - Powdered water-in-oil emulsified cosmetic - Google Patents

Description

（式中、ｎは４〜６の整数である。）
【０００６】
また、本発明に用いられる環状シリコーン４〜６量体の含有量は、それを含有する粉末含有油中水型乳化化粧料の総量を基準として、１０〜４０重量％であり、好ましくは１５〜３０重量％である。すなわち、これが１０重量％未満では優れた使用感が得られず、一方、４０重量％を超えるとシリコーン油独特の油性感が強まり、使用感を悪くしてしまう。
【０００７】
本発明に用いられるモノイソステアリン酸ソルビタン及び／又はモノイソステアリン酸ジグリセリルの含有量は、それを含有する粉末含有油中水型乳化化粧料の総量を基準として、０．５〜５重量％であり、好ましくは１〜３重量％である。すなわち、これが０．５重量％未満では粉末の分散性が悪くなり、一方、５重量％を超えると、のびの重さ等が生じる。
【０００８】
本発明に用いられるメチルシロキサン網状重合体及び／または架橋型シリコーン末として、化粧料としての使用性（例えば感触等）の点から、メチルシロキサン網状重合体は東芝シリコーン社製のトスパールシリーズの使用が好ましく、また、架橋型シリコーン末は東レ・ダウコーニング・シリコーン社製のトレフィルＥシリーズの使用が好ましい。トレフィルＥシリーズの使用に際しては、そのまま用いても構わないが、ビーズミル、擂潰機等を用いて、その凝集を解き、使用する方がより好ましい。
【０００９】
また、本発明に用いられるメチルシロキサン網状重合体及び／又は架橋型シリコン末の配合量は、それを含有する粉末含有油中水型乳化化粧料の総量を基準として、０．５〜１０重量％であり、好ましくは１〜５重量％である。すなわち、これが０．５重量％未満では、滑らかで、自然な仕上がりを実現できず、更に保存安定性の低下もみられる。また、１０重量％を超えると優れた使用感が得られない。
【００１０】
本発明に用いられる酸化チタンは、通常、化粧料、ペイント等に用いられるものであり、必要であればアルミナ、シリカ、亜鉛華処理されたものやシリコーン等で疎水処理したものが用いられる。
【００１１】
また、本発明に用いられる酸化チタンの含有量は、それを含有する粉末含有油中水型乳化化粧料の総量を基準として、０．５〜２０重量％であり、好ましくは３〜１０重量％である。すなわち、これが０．５重量％未満では、隠蔽効果が低く、メイクアップ化粧料、日焼け止め化粧料としての目的を達成することができず、一方、２０重量％を超えると、感触が重くなってしまう。
【００１２】
本発明に用いられる水は精製水等が用いられ、その含有量は、それを含有する粉末含有油中水型乳化化粧料の総量を基準として、２０〜７０重量％である。
【００１３】
本発明の粉末含有油中水型乳化化粧料には上記の必須成分の他に、タルク、マイカ、カオリン等の顔料、流動パラフィン、スクワラン、ワックス等の油性成分、その他、保湿剤、 乳化剤、香料、紫外線吸収剤、防腐剤等を本発明の効果を損なわない範囲で配合することができる。
【００１４】
本発明の粉末含有油中水型乳化化粧料としては、化粧下地、乳化ファンデーション、アイシャドウ等のメイクアップ化粧料、サンスクリーンクリーム等の日焼け止め化粧料等が含まれる。また、剤型的には、乳液類、クリーム類とすることができる。
【００１５】
【実施例】
次に実施例によって本発明を更に詳細に説明するが、本発明はこれらに限定されるものではない。なお、表中の数値は含有量（重量％）を表わす。
実施例に先立ち、各実施例で採用した評価方法及び試料の調製方法を説明する。
【００１６】
＜評価方法＞
（１）使用特性試験
女性パネラー２０名の顔面に実施例、比較例の各試料を塗布してもらい、「感触が滑らかである」、「仕上がりが自然である」と回答した人数に従って、使用特性を評価した。評価基準は下記の通りである。
【００１７】
人数が １５人以上；○
〃 ７〜１４人；△
〃 ６人以下 ；×
【００１８】
（２）保存安定性試験
所定の方法で調製した試料を０℃、２５℃、４５℃の恒温槽内に放置し、３週間後の保存安定性を下記の基準に従って評価した。
【００１９】
凝集無し ；○
わずかに凝集 ；△
凝集あり ；×
【００２０】
＜粉末含有水中油型乳化化粧料の調製方法＞
油相成分を８０℃に加熱して、これに粉末を分散させ、あらかじめ８０℃に加熱しておいた水相成分を添加し、乳化後室温まで攪拌冷却して、目的の粉末含有油中水型乳化化粧料を得る。
【００２１】
実施例１〜５、比較例１〜３ 乳化ファンデーション
表１記載の組成の乳化ファンデーションを上記の調製方法により製造し、上記各試験を実施した。その結果を併せて表１に示す。なお、メチルシロキサン網状重合体として、東芝シリコーン社製のトスパール１４５Ａを用い、架橋型シリコーン末として、東レ・ダウコーニング・シリコーン社製のトレフィルＥ−５０６Ｃを用いた。
【００２２】
【表１】

【００２３】
表１に示すように実施例１〜５の乳化ファンデーションは、保存安定性及び使用特性の全ての点において比較例１〜３の乳化ファンデーションより明らかに優れている。
【００２４】
実施例６ 化粧下地
下記に示した組成の化粧下地を、上記調製方法により調製した。
【００２５】

【００２６】
実施例７ アイシャドウ
下記に示した組成のアイシャドウを、上記調製方法により調製した。
【００２７】

【００２８】
実施例８ サンスクリーンクリーム
下記に示した組成のサンスクリーンクリームを、上記調製方法により調製した。
【００２９】

【００３０】
実施例９ 乳化ファンデーション
下記に示した組成の乳化ファンデーションを、上記調製方法により調製した。
【００３１】

【００３２】
以上、実施例６〜９はいずれも感触が滑らかで、自然な仕上がりを有し、更に保存安定性に優れた粉末含有油中水型乳化化粧料であった。
【００３３】
【発明の効果】
以上のように本発明が、感触が滑らかで、自然な仕上がりを可能にし、更に保存安定性に優れた粉末含有油中水型化粧料を提供することは明らかである。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a powder-containing water-in-oil emulsified cosmetic that has a smooth feel, enables a natural finish, and has excellent storage stability, and more particularly, contains a powder suitable as a makeup cosmetic and a sunscreen cosmetic. The present invention relates to a water-in-oil emulsified cosmetic.
[0002]
[Prior art]
Conventionally, the cyclic silicone is refreshing and has a feeling of use with little stickiness, so that it is often used as an oil agent in water-in-oil emulsified cosmetics. However, the water-in-oil emulsified cosmetic containing the material has a drawback that it has a heavy use characteristic. Further, when a pigment is contained, it is difficult to obtain a natural finish, oil bleeding or the like occurs, and it is difficult to obtain satisfactory storage stability.
[0003]
[Problems to be solved by the invention]
Therefore, an object of the present invention is to provide a powder-containing water-in-oil emulsified cosmetic that eliminates the above-mentioned drawbacks, has a smooth feel, enables a natural finish, and has excellent storage stability.
[0004]
[Means for Solving the Problems]
As a result of intensive studies, the present inventors have confirmed that the following powder-containing water-in-oil emulsified cosmetics achieve the above-mentioned object, and have completed the present invention.
That is, in the present invention, 10 to 40% by weight of one or two or more of cyclic silicone tetramer to hexamer, sorbitan monoisostearate and / or diglyceryl monoisostearate 0.5 to 5% by weight, methylsiloxane A powder-containing water-in-oil comprising 0.5 to 10% by weight of a network polymer and / or a crosslinked silicone powder, 0.5 to 20% by weight of titanium oxide, and 20 to 70% by weight of water There is in type emulsified cosmetics.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The configuration of the present invention will be described below.
The cyclic silicone tetramer to hexamer used in the present invention is represented by the following general formula, and one or two or more of these are used in combination.
[Chemical 1]

(In the formula, n is an integer of 4 to 6.)
[0006]
The content of the cyclic silicone 4-6 mer used in the present invention is 10 to 40% by weight, preferably 15 to 15%, based on the total amount of the powder-containing water-in-oil emulsified cosmetic containing it. 30% by weight. That is, if it is less than 10% by weight, an excellent feeling of use cannot be obtained. On the other hand, if it exceeds 40% by weight, an oily feeling peculiar to silicone oil is strengthened and the feeling of use is deteriorated.
[0007]
The content of sorbitan monoisostearate and / or diglyceryl monoisostearate used in the present invention is 0.5 to 5% by weight, based on the total amount of the powder-containing water-in-oil emulsified cosmetic containing the same. , Preferably 1 to 3% by weight. That is, when the content is less than 0.5% by weight, the dispersibility of the powder is deteriorated.
[0008]
As the methylsiloxane network polymer and / or the cross-linked silicone powder used in the present invention, the methylsiloxane network polymer is a Tospearl series manufactured by Toshiba Silicone Co., Ltd. The cross-linked silicone powder is preferably a Trefil E series manufactured by Toray Dow Corning Silicone. When using the Trefill E series, it may be used as it is, but it is more preferable to use the trefil E series by using a bead mill, a crusher or the like to break up the aggregation.
[0009]
Further, the blending amount of the methylsiloxane network polymer and / or the cross-linked silicone powder used in the present invention is 0.5 to 10% by weight based on the total amount of the powder-containing water-in-oil emulsified cosmetic containing the same. And preferably 1 to 5% by weight. That is, when the content is less than 0.5% by weight, a smooth and natural finish cannot be realized, and the storage stability is also lowered. On the other hand, if it exceeds 10% by weight, an excellent feeling of use cannot be obtained.
[0010]
The titanium oxide used in the present invention is usually used for cosmetics, paints, and the like, and if necessary, those treated with alumina, silica, zinc white or those treated with a hydrophobic material such as silicone.
[0011]
The content of titanium oxide used in the present invention is 0.5 to 20% by weight, preferably 3 to 10% by weight, based on the total amount of the powder-containing water-in-oil emulsified cosmetic containing the titanium oxide. It is. That is, if this is less than 0.5% by weight, the concealing effect is low, and the purpose as a makeup cosmetic or sunscreen cosmetic cannot be achieved. On the other hand, if it exceeds 20% by weight, the feel becomes heavy. End up.
[0012]
The water used in the present invention is purified water or the like, and the content thereof is 20 to 70% by weight based on the total amount of the powder-containing water-in-oil emulsified cosmetic containing the same.
[0013]
In addition to the above essential components, the powder-containing water-in-oil emulsified cosmetic of the present invention includes pigments such as talc, mica and kaolin, oily components such as liquid paraffin, squalane and wax, other moisturizers, emulsifiers and perfumes. In addition, ultraviolet absorbers, preservatives and the like can be blended within a range not impairing the effects of the present invention.
[0014]
Examples of the powder-containing water-in-oil emulsified cosmetics of the present invention include makeup cosmetics such as makeup foundations, emulsion foundations, and eye shadows, and sunscreen cosmetics such as sunscreen creams. Further, the dosage form, it is possible to milk liquid such a cream is.
[0015]
【Example】
EXAMPLES Next, although an Example demonstrates this invention further in detail, this invention is not limited to these. In addition, the numerical value in a table | surface represents content (weight%).
Prior to the examples, the evaluation methods and sample preparation methods employed in each example will be described.
[0016]
<Evaluation method>
(1) Usage characteristics test According to the number of female panelists who applied the samples of the examples and comparative examples on their faces, the usage characteristics according to the number of respondents who responded that “feel is smooth” and “finish is natural”. Evaluated. The evaluation criteria are as follows.
[0017]
More than 15 people; ○
７ 7-14 people;
６ 6 people or less; ×
[0018]
(2) Storage stability test A sample prepared by a predetermined method was left in a thermostatic bath at 0 ° C, 25 ° C and 45 ° C, and the storage stability after 3 weeks was evaluated according to the following criteria.
[0019]
No aggregation; ○
Slight aggregation; △
There is aggregation; ×
[0020]
<Preparation method of powder-containing oil-in-water emulsified cosmetic>
The oil phase component is heated to 80 ° C., the powder is dispersed therein, the water phase component heated to 80 ° C. is added in advance, and after emulsification, the mixture is stirred and cooled to room temperature. A type emulsified cosmetic is obtained.
[0021]
Examples 1 to 5 and Comparative Examples 1 to 3 Emulsification foundation An emulsification foundation having the composition described in Table 1 was produced by the above preparation method, and the above tests were performed. The results are also shown in Table 1. In addition, Tospearl 145A manufactured by Toshiba Silicone was used as the methylsiloxane network polymer, and Trefill E-506C manufactured by Toray Dow Corning Silicone was used as the cross-linked silicone powder.
[0022]
[Table 1]

[0023]
As shown in Table 1, the emulsification foundations of Examples 1 to 5 are clearly superior to the emulsification foundations of Comparative Examples 1 to 3 in all points of storage stability and use characteristics.
[0024]
Example 6 Makeup Base A makeup base having the composition shown below was prepared by the above preparation method.
[0025]

[0026]
Example 7 Eye Shadow An eye shadow having the composition shown below was prepared by the above preparation method.
[0027]

[0028]
Example 8 Sunscreen Cream A sunscreen cream having the composition shown below was prepared by the above preparation method.
[0029]

[0030]
Example 9 Emulsification foundation An emulsification foundation having the composition shown below was prepared by the above preparation method.
[0031]

[0032]
As described above, all of Examples 6 to 9 were powder-containing water-in-oil emulsified cosmetics having a smooth feel, a natural finish, and excellent storage stability.
[0033]
【The invention's effect】
As described above, it is apparent that the present invention provides a powder-containing water-in-oil cosmetic that has a smooth feel, enables a natural finish, and has excellent storage stability.

Claims (1)

  10 to 40 wt% of cyclic silicone tetramer to hexamer, sorbitan monoisostearate and / or diglyceryl monoisostearate 0.5 to 5 wt%, methylsiloxane network polymer and / or An emulsion type or cream type powder-containing water-in-oil type containing 0.5 to 10% by weight of a crosslinked silicone powder, 0.5 to 20% by weight of titanium oxide, and 20 to 70% by weight of water Emulsified cosmetic. (However, it does not contain ethanol.)