JP6801980B2 - 水中油型乳化化粧料 - Google Patents
水中油型乳化化粧料 Download PDFInfo
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- JP6801980B2 JP6801980B2 JP2016090537A JP2016090537A JP6801980B2 JP 6801980 B2 JP6801980 B2 JP 6801980B2 JP 2016090537 A JP2016090537 A JP 2016090537A JP 2016090537 A JP2016090537 A JP 2016090537A JP 6801980 B2 JP6801980 B2 JP 6801980B2
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- oil
- mass
- water
- cosmetic
- dimethyl ether
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- LCGLNKUTAGEVQW-UHFFFAOYSA-N Dimethyl ether Chemical compound COC LCGLNKUTAGEVQW-UHFFFAOYSA-N 0.000 claims description 46
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- LQJVOKWHGUAUHK-UHFFFAOYSA-L disodium 5-amino-4-hydroxy-3-phenyldiazenylnaphthalene-2,7-disulfonate Chemical compound [Na+].[Na+].OC1=C2C(N)=CC(S([O-])(=O)=O)=CC2=CC(S([O-])(=O)=O)=C1N=NC1=CC=CC=C1 LQJVOKWHGUAUHK-UHFFFAOYSA-L 0.000 description 1
- AGDANEVFLMAYGL-UHFFFAOYSA-N docosanoic acid Chemical compound CCCCCCCCCCCCCCCCCCCCCC(O)=O.CCCCCCCCCCCCCCCCCCCCCC(O)=O AGDANEVFLMAYGL-UHFFFAOYSA-N 0.000 description 1
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- 235000011949 flavones Nutrition 0.000 description 1
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- HVQAJTFOCKOKIN-UHFFFAOYSA-N flavonol Natural products O1C2=CC=CC=C2C(=O)C(O)=C1C1=CC=CC=C1 HVQAJTFOCKOKIN-UHFFFAOYSA-N 0.000 description 1
- 235000011957 flavonols Nutrition 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
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- WTFXARWRTYJXII-UHFFFAOYSA-N iron(2+);iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[Fe+2].[Fe+3].[Fe+3] WTFXARWRTYJXII-UHFFFAOYSA-N 0.000 description 1
- LDHBWEYLDHLIBQ-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide;hydrate Chemical compound O.[OH-].[O-2].[Fe+3] LDHBWEYLDHLIBQ-UHFFFAOYSA-M 0.000 description 1
- JCDAAXRCMMPNBO-UHFFFAOYSA-N iron(3+);oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Ti+4].[Fe+3].[Fe+3] JCDAAXRCMMPNBO-UHFFFAOYSA-N 0.000 description 1
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Landscapes
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Description
<(A)色材>
本発明に係る水中油型乳化化粧料に配合される(A)色材(以下、単に「(A)成分」と称する場合がある)は、顔料、パール顔料等の、メーキャップ化粧料に通常配合されるものを使用することができる。
本発明で用いられる(B)脂肪酸(以下、単に「(B)成分」と称する場合がある)は、化粧料等に使用できるものであれば特に限定されるものではなく、直鎖状または分岐鎖状の飽和または不飽和の炭化水素基を有する脂肪酸から選択できる。
特に、常温で固体であり、かつ、炭素数8〜22の直鎖状の高級脂肪酸、たとえば、ラウリン酸、ミリスチン酸、パルミチン酸、ステアリン酸、ベヘニン酸(ベヘン酸)、オレイン酸等が挙げられる。中でも、ステアリン酸、パルミチン酸およびベヘニン酸から選択される一種または二種以上を用いるのが特に好ましい。
本明細書における「(脂肪酸の)中和率」とは、水中油型乳化化粧料に配合される脂肪酸の合計当量数を「Ea’」、化粧料中の酸性物質から脂肪酸を除いた物質の合計当量数を「Ea”」、化粧料に配合される塩基性物質の合計当量数を「Eb」としたとき、以下の式(A)で表される数値と定義する。
[(Eb−Ea”)/(Ea’)]×100(%) (I)
有機塩基としては、アミン類、例えばモノエタノールアミン、ジエタノールアミン、トリエタノールアミン、アミノメチルプロパンジオール、2−アミノ−2−メチルプロパノール(AMP)、トリイソプロパノールアミン(TIPA)、トリス[(2−ヒドロキシ)−1−プロピル]アミン、2−アミノ−2−メチル−1,3−プロパンジオール(AMPD)及び2−アミノ−2−ヒドロキシメチル−1,3−プロパンジオール、N−メチルグルカミン等、塩基性アミノ酸、例えばアルギニンおよびリジンを挙げることができる。
本発明の水中油型乳化化粧料では、上記必須成分に加え、(C)IOBが0.5以上の油分をさらに配合することにより、水分と接する前の肌の凹凸補正効果(以下、水浴前の肌の補正効果)を高めることができる。
R1O−[(AO)m(EO)n]−R2 (II)
(式中、AOは炭素数3〜4のオキシアルキレン基、EOはオキシエチレン基、mおよびnはそれぞれ前記オキシアルキレン基、オキシエチレン基の平均付加モル数で、1≦m≦70、1≦n≦70である。炭素数3〜4のオキシアルキレン基とオキシエチレン基の合計に対するオキシエチレン基の割合が、20〜80質量%である。炭素数3〜4のオキシアルキレン基とオキシエチレン基はブロック状に付加していてもランダム状に付加していてもよい。R1およびR2は同一もしくは異なっていてもよい炭素数1〜4の炭化水素基または水素原子であり、R1およびR2の炭化水素基数に対する水素原子数の割合が0.15以下である。)
なお、上記POE、POP、POBは、それぞれポリオキシエチレン、ポリオキシプロピレン、ポリオキシブチレンの略である。
(C)成分を配合する場合の配合量は、特に限定されないが、例えば、0.005〜20質量%、0.1〜10質量%、又は0.1〜5質量%の範囲で配合することにより、水分と接触した後の肌の凹凸補正効果が増加する。
ただし、界面活性剤を5.0質量%を超えて配合すると水に接触した場合に塗布膜自体が流れてしまう場合があるため、界面活性剤の配合量は5.0質量%以下とするのが好ましく、本発明は界面活性剤を含まない態様も包含する。
実施例および比較例に示す水中油型乳化化粧料は、水性成分を必要に応じて加温して溶解した水相を、別途油性成分を適宜加温して溶解した油相に添加し、攪拌処理にて乳化することにより調製した。
被験試料を腕の皮膚に塗布し、肌の微細な凹凸が視覚的に目立たなくなる度合いについて、以下の基準で評価した。
1:補正効果なし。
2:補正効果ややあり。
3:補正効果あり。
4:補正効果が高い。
下記の表1に掲げた組成を有する化粧料を調整し、水浴前後の肌の凹凸補正効果を評価した。
Claims (5)
- (A)色材、
(B)3質量%以上の常温で固形の脂肪酸、および
(C)ポリエチレングリコール、ポリプロピレングリコール、ポリブチレングリコール、ポリアルキレングリコールおよびポリオキシエチレン/ポリオキシプロピレンジメチルエーテルから選択される、1種又は2種以上のIOBが0.5以上の油分
を含有し、前記脂肪酸の中和率が51%以下である、水中油型乳化化粧料。 - 前記(C)IOBが0.5以上の油分が、ポリオキシエチレン/ポリオキシプロピレンジメチルエーテルである、請求項1に記載の化粧料。
- 前記(C)IOBが0.5以上の油分が、ポリオキシエチレン(14)ポリオキシプロピレン(7)ジメチルエーテルである、請求項2に記載の化粧料。
- 前記(B)脂肪酸が、ステアリン酸、パルミチン酸およびベヘニン酸から選択される一種または二種以上の直鎖脂肪酸である、請求項1から3のいずれか一項に記載の化粧料。
- 前記(A)色材の配合量が0.5質量%以上である、請求項1から4のいずれか一項に記載の化粧料。
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