JP3824729B2 - Cosmetics - Google Patents

Description

【００１４】
上記一般式（１）及び上記一般式（２）中、Ｒ¹ 〜Ｒ³ で示される炭化水素基は、炭素数１〜４５のものであるが、就中炭素数８以上のものが望ましい。炭素数８未満であると、そのアルキルリン酸金属塩が粘着性を示し、滑沢性、延展性が低下するおそれがある。かかる炭化水素基としては、例えば、オクチル、ノニル、デシル、ドデシル、ウンデシル、トリデシル、テトラデシル、ペンタデシル、ヘキサデシル、ヘプタデシル、オクタデシル、ノナデシル、エイコシル、ヘンエイコシル、ドコシル、トリコシル、テトラコシル、ペンタコシル、ヘキサコシル、ヘプタコシル、オクタコシル、ノナコシル、トリアコンチル、ヘントリアコンチル、ドトリアコンチル、オクテニル、ノネニル、デセニル、ドデセニル、ウンデセニル、トリデセニル、テトラデセニル、ペンタデセニル、ヘキサデセニル、ヘプタデセニル、オクタデセニル、ノナデセニル、エイコセニル、ヘンエイコセニル、ドコセニル、トリコセニル、テトラコセニル、ペンタコセニル、ヘキサコセニル、ヘプタコセニル、オクタコセニル、ノナコセニル、トリアコンテニル、ヘントリアコンテニル、ドトリアコンテニル、オクタジエニル、ノナジエニル、デカジエニル、ドデカジエニル、ウンデカジエニル、トリデカジエニル、テトラデカジエニル、ペンタデカジエニル、ヘキサデカジエニル、ヘプタデカジエニル、オクタデカジエニル、ノナデカジエニル、エイコサジエニル、ヘンエイコサジエニル、ドコサジエニル、トリコサジエニル、テトラコサジエニル、ペンタコサジエニル、ヘキサコサジエニル、ヘプタコサジエニル、オクタコサジエニル、ノナコサジエニル、トリアコンタジエニル、ヘントリアコンタジエニル、ドトリアコンタジエニル、２−ヘキシルデシル、２−オクチルウンデシル、２−デシルテトラデシル、２−ウンデシルヘキサデシル、２−テトラデシルオクタデシル基等が挙げられる。また、上記一般式（１）及び上記一般式（２）中、Ｘ¹ 〜Ｘ³ で示されるアルカリ金属としては、カリウム、ナトリウム等が挙げられ、Ｘ¹ 〜Ｘ³ で示されるアミンとしては、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、トリイソプロパノールアミン、モルホリン、アルギニン等が挙げられる。
【００１５】
Ｎ−モノ長鎖（炭素数８〜２２）脂肪族アシル塩基性アミノ酸を構成する塩基性アミノ酸としては、α，γ−ジアミノ酪酸、オルニチン、リジン、アルギニン、ヒスチジン等が挙げられる。これらは光学活性体であってもラセミ体であってもよい。長鎖脂肪族アシル基としては炭素数８〜２２の飽和又は不飽和の直鎖又は分岐鎖脂肪族アシル基であって、単一鎖長のものであっても混合鎖長のものであってもよい。具体的には、２−エチルヘキサノイル、カプリロイル、カプロイル、ラウロイル、ミリストイル、パルミトイル、ステアロイル、イソステアロイル、オレオイル、ベヘノイル、ココイル、牛脂脂肪酸アシル、硬化牛脂脂肪酸アシル等が挙げられる。長鎖アシル基の塩基性アミノ酸ヘの結合部位はα位のアミノ基あるいはω位のアミノ基であるが、アルギニン及びヒスチジンにおいてはα位のアミノ基に限定される。具体例としては、Ｎε−２−エチルヘキサノイルリジン、Ｎε−ラウロイルリジン、Ｎε−ココイルリジン、Ｎε−パルミトイルリジン、Ｎε−イソステアロイルリジン、Ｎε−硬化牛脂脂肪酸アシルリジン、Ｎα−カプリロイルリジン、Ｎα−ラウロイルリジン、Ｎα−ミリストイルリジン、Ｎα−オレオイルリジン、Ｎα−ベヘノイルリジン、Ｎδ−ココイルオルニチン、Ｎδ−ステアロイルオルニチン、Ｎδ−牛脂脂肪酸アシルオルニチン、Ｎα−エチルヘキサノイルオルニチン、Ｎα−ラウロイルオルニチン、Ｎα−イソステアロイルオルニチン、Ｎγ−パルミトイル−α，γ−ジアミノ酪酸、Ｎα−牛脂脂肪酸アシル−α，γ−ジアミノ酪酸、Ｎα−カプロイルアルギニン、Ｎα−ラウロイルアルギニン、Ｎα−パルミトイルアルギニン、Ｎα−硬化牛脂脂肪酸アシルアルギニン、Ｎα−ココイルヒスチジン、Ｎα−イソステアロイルヒスチジン等が挙げられるが、これらの例に限定されない。
【００１６】
パーフルオロアルキル基を有するフッ素化合物としては、例えば
【００１７】
【化２】

【００１８】
で表わされるポリフルオロアルキルリン酸（米国特許第３６３２７４４号）、フルオロアルキルジ（オキシエチル）アミンリン酸エステル（特開昭６２−２５００７４号公報）、パーフルオロアルキル基を有する樹脂（特開昭５５−１６７２０９号公報）、四弗化エチレン樹脂、パーフルオロアルコール、パーフルオロエポキシ化合物、スルホアミド型フルオロリン酸、パーフルオロ硫酸塩、パーフルオロカルボン酸塩、パーフルオロアルキルシラン（特開平２−２１８６０３号公報）等が挙げられる。）等が挙げられる。
【００１９】
着色顔料をシリコーン油で処理する方法としては、着色顔料をシリコーン油の１種又は２種以上を適量のヘキサン等に溶解したものに分散させ、溶剤留去後１００〜２００℃で２〜１０時間処理し、その後乾燥する方法がある。着色顔料をアルキルリン酸で処理する方法としては、式（１）、（２）中Ｘ¹ 及びＸ² 又はＸ³ が水素である場合、前記したアルキルリン酸をイソプロピルアルコールやヘキサン等の溶剤で溶解したものに着色顔料を分散させ、５０℃〜７０℃で１〜３時間処理し、その後溶剤留去後乾燥する方法がある。また、式（１）、（２）中、Ｘ¹ あるいはＸ² 及びＸ³ が水素以外である場合（アルカリ金属又はアミンである場合）は、上記したアルキルリン酸のアルカリ金属塩又はアミン塩を水に溶解したものに着色顔料を分散させ、５０〜７０℃で１〜３時間処理し、その後適当な酸で中和した後、熱時濾過し、エタノール水溶液で洗浄後、乾燥する方法がある。これら着色顔料を撥水処理する方法は上記の例に限定されない。
【００２０】
また、着色顔料をＮ−モノ長鎖脂肪族アシル塩基性アミノ酸で処理する方法としては乾式法及び湿式法のいずれの方法も用いることができる。乾式法は簡便かつ効果的であって、Ｎ−モノ長鎖脂肪族アシル塩基性アミノ酸の微細粉末を着色顔料と攪拌混合するか、もしくはＮ−モノ長鎖脂肪族アシル塩基性アミノ酸と着色顔料を混合した後、共粉砕することによって、着色顔料の表面を容易に処理できる。湿式法はＮ−モノ長鎖脂肪族アシル塩基性アミノ酸が中性付近の水及び通常の油に殆ど溶解しないため、塩化カルシウムを可溶化剤として用いてＮ−モノ長鎖脂肪族アシル塩基性アミノ酸を有機溶剤に溶解した後、着色顔料を接触させ、更に水洗して塩化カルシウムを除去して乾燥することにより、着色顔料の表面を処理できる。あるいは酸性もしくはアルカリ性の水又は水性溶媒中にＮ−モノ長鎖脂肪族アシル塩基性アミノ酸を溶解して着色顔料を接触させた後、中性付近まで中和して着色顔料表面にＮ−モノ長鎖脂肪族アシル塩基性アミノ酸を析出付着させ、中和によって生じた塩を水洗により除去し、乾燥することによっても同様の表面処理ができる（特開昭６１−７２０２号、同６１−１０５０３号）。
【００２１】
成分（Ａ）の着色顔料は１種又は２種以上を組合せて用いることができ、全組成中に０．５〜４．０重量％、好ましくは１．０〜３．９重量％、特に好ましくは２．０〜３．７重量％配合される。０．５重量％未満では肌の色相を変化させることはできず、４．０重量％を超えると、透明感に欠け、素肌っぽい自然な仕上がりが得られない。
【００２２】
本発明で用いられる成分（Ｂ）の球状複合粉体を構成する樹脂及び酸化ケイ素（以下、「母材粒子」と言うことがある）は、特に制限されないが、これらのうち、樹脂としては、ナイロン６樹脂、ナイロン１２樹脂、ナイロン６とナイロン１２との共重合樹脂等のナイロン樹脂；ポリエチレン樹脂、ポリメチルメタクリレート樹脂、ポリエステル樹脂、ポリスチレン樹脂、ポリウレタン樹脂、シリコーン樹脂などの粉末が挙げられ、なかでも、ナイロン樹脂やシリコーン樹脂の粉末が好ましい。
【００２３】
母材粒子の形状は、特に制限されないが、球状、柱状、棒状あるいは板状等のいずれをも用いることができ、特に球状が好ましい。平均粒子径は、特に制限されないが形状が球状の場合は０．５〜１００μｍが好ましく、特に好ましくは２〜２０μｍの範囲であり、柱状、棒状、板状の場合は、球状換算で１〜１００μｍが好ましく、特に好ましくは５〜２０μｍの範囲である。母材粒子の平均粒子径が上記範囲内であれば、球状複合粉体を化粧料に配合したとき、使用者に違和感を与えることが少なくなる。
【００２４】
成分（Ｂ）の球状複合粉体において、母材粒子の内部に分散する酸化チタン又は酸化亜鉛の粉末は、単独で使用しても、混合して使用してもよい。平均粒子径は特に制限されないが、母材粒子の内部での分散性をよくするため０．００５〜２μｍが好ましく、特に０．０１〜０．５μｍが好ましい。
酸化チタンや酸化亜鉛の粉末の形状は、特に制限されず球状、柱状、棒状、板状又は不定形等いずれでもよい。また、配合量は、母材粒子に対して５〜６０重量％、特に８〜５０重量％が好ましく、この範囲内であると、十分な紫外線吸収効果が得られ、しかも母材粒子内部での分散性も良好である。
【００２５】
母材粒子の内部に酸化チタンや酸化亜鉛を分散させる方法は特に制限されないが、例えば、母材粒子がナイロン樹脂の場合には、パラフィン等に環状ラクタムを加熱、溶解し、これに所望量の酸化チタンや酸化亜鉛の粉末を添加し、かき混ぜながら、重合促進剤、例えば三塩化リンを添加してアルカリ重合を行わせ、粒子とし、更に、粒子を濾別し、有機溶剤、例えばベンゼンやイソプロピルアルコールで洗浄し、乾燥する方法；母材粒子がシリコーン樹脂の場合には、アンモニアやアミン等の水溶液に酸化チタンや酸化亜鉛の粉末を添加、混合し、更に、加水分解性シラン、例えばクロロシラン、ハイドロジェンシラン、アルコキシシラン、アセトキシシランを加えて加水分解、縮合反応を行わせ、粒子とし、更に、粒子を濾別し、水洗し、乾燥する方法；母材粒子が酸化ケイ素の場合には、まず、ケイ酸ナトリウムに酸化チタンや酸化亜鉛の粉末を添加して懸濁液を調製し、更に界面活性剤とベンゼン等の油性分散剤との混合液を調製し、この混合液に上述した懸濁液を加え、乳化させて油中水分散型エマルジョンを得た後、それを硫酸アンモニウムや塩化アンモン等の塩を添加してケイ酸ナトリウムと反応させ、粒子とし、当該粒子を濾別、水洗し、メタノール等の有機溶剤で洗浄し、乾燥する方法が挙げられる。
【００２６】
また、成分（Ｂ）の球状複合粉体において、母材粒子の表面に担持される酸化ジルコニウム又は酸化アルミニウムの粉末の平均粒子径は特に制限されないが、例えば０．００５〜２μｍが好ましく、特に０．０１〜０．５μｍであると、母材粒子への担持性及び球状複合粉体のすべり性が向上するため好ましい。
酸化ジルコニウム又は酸化アルミニウムの粉末の形状は特に制限されないが、球状が好ましく、母材粒子の表面に半没状態で担持され、その表面を一重に覆っていることが好ましい。配合量は、酸化チタンや酸化亜鉛を含む母材粒子に対し、好ましくは１０〜６０重量％、特に好ましくは２０〜４０重量％とするのが母材粒子表面を均一に被覆し、従ってすべり性が良くなることから好ましい。また、酸化ジルコニウム又は酸化アルミニウムの粉末は、単独でも、混合して使用してもよい。
【００２７】
また、内部に酸化チタンや酸化亜鉛の粉末を分散した母材粒子の表面に酸化ジルコニウム又は酸化アルミニウムの粉末を担持させる方法は特に制限されないが、例えば、母材粒子がナイロン樹脂やシリコーン樹脂の場合には、それらの樹脂の荷電性を利用して表面に酸化ジルコニウム又は酸化アルミニウムの粉末を付着させ、更に自動乳鉢やハイブリダイザー等を用いて物理的な力を加え、このとき、摩擦熱が発生して母材粒子の表層部においてナイロン樹脂やシリコーン樹脂が軟化し、同時に物理力で表面に酸化ジルコニウム又は酸化アルミニウムの粉末がめり込み、担持する方法；母材粒子が酸化ケイ素の場合には、酸化ジルコニウム又は酸化アルミニウムの粉末の懸濁液や、酸化ジルコニウム又は酸化アルミニウムのゾルに、内部に酸化ケイ素や酸化亜鉛を分散させた母材粒子を添加、混合後、７０〜１００℃で加熱し、上記粒子の表面に酸化ジルコニウム又は酸化アルミニウムを付着させ、これを濾別し、水洗した後、４００〜５００℃で焼成する方法が挙げられる。
【００２８】
このようにして得られる内部に酸化ケイ素又は酸化亜鉛が分散され、表面に酸化ジルコニウム又は酸化アルミニウムを担持した球状複合粉体は、更にその表面を通常用いられる撥水処理剤を用いて撥水処理したものであってもよく、優れた撥水・撥油性を得ることができる。かかる撥水処理の方法は特に制限されず、例えば成分（Ａ）の着色顔料の場合と同様の撥水処理剤を用い、同様の方法により処理することができる。なお、内部に酸化ケイ素又は酸化亜鉛が分散され、表面に酸化ジルコニウムを担持した球状複合粉体の場合は、疎水化処理の前工程として、表面を酸化アルミニウムで表面処理すると、後の疎水化処理に種々の方法が適用でき好ましい。
【００２９】
かかる酸化ジルコニウム粉末を担持した球状複合粉体の表面を酸化アルミニウムで表面処理する方法としては、母材粒子と硫酸アルミニウム、アルミン酸ソーダ、塩化アルミニウム等の１種以上の水溶液とを混合し、これに１種以上の酸性又は塩基性沈殿剤溶液を添加し、金属塩の加水分解反応により水酸化アルミニウムを担持母材粒子表面に析出させ、中和によって生じた塩を水洗により除去し、乾燥することによって表面処理する方法；水酸化アルミニウムを担持母材粒子表面に析出させたものを５００〜１０００℃で焼成することにより、表面を酸化アルミニウムとする方法；担持母材粒子表面に酸化アルミニウムの粉末をハイブリダイザー等で攪拌混合することにより酸化アルミニウム処理する方法等が挙げられる。
【００３０】
球状複合粉体に対する酸化アルミニウム又は水酸化アルミニウムの処理量は、当該球状複合粉体に対して０．０５〜２０重量％、特に０．５〜１５重量％であるのが好ましい。
【００３１】
成分（Ｂ）の球状複合粉体は、平均粒径が０．５〜１００μｍ、特に５〜２０μｍであるのが好ましい。
【００３２】
成分（Ｂ）の球状複合粉体は、１種又は２種以上を組合わせて用いることができ、全組成中に０．１〜１５．０重量％、好ましくは２．０〜１４．０重量％、特に好ましくは５．０〜１３．０重量％配合される。０．１重量％未満では毛穴等の凹凸をぼかす効果が十分に得られず、１５．０重量％を超えるとこの粉体が毛穴等の凹凸に入った際に明度が上がりすぎ、逆に白く目立ってしまう。
【００３３】
本発明のファンデーションには、前記成分のほか、必要に応じて本発明の効果を損なわない範囲で、通常の化粧料に配合される成分、例えば各種オイル、界面活性剤、水溶性高分子、他の粉体、保湿剤、防腐剤、薬剤、紫外線吸収剤、色素、無機塩又は有機塩、香料、キレート剤、pH調整剤、水等を配合することができる。
【００３４】
オイルとしては、例えば流動パラフィン、ワセリン、パラフィンワックス、スクワラン、ミツロウ、カルナウバロウ、オリーブ油、ラノリン、高級アルコール、脂肪酸、高級脂肪酸、エステル油、セレシン、マイクロクリスタリンワックス、キャンデリラロウ、ジグリセライド、トリグリセライド、シリコーン油、パーフルオロポリエーテル、パーフルオロデカリン、パーフルオロオクタン、ホホバ油、ミリスチン酸オクチルドデシル、ジオクタン酸ネオペンチルグリコール等の化粧品に汎用される油分が用いられる。
界面活性剤としては、例えばポリオキシエチレンアルキルエーテル、ポリオキシエチレン脂肪酸エステル、ポリオキシエチレンソルビタン脂肪酸エステル、グリセリン脂肪酸エステル、ポリグリセリン脂肪酸エステル、ポリオキシエチレングリセリン脂肪酸エステル、ポリオキシエチレン硬化ヒマシ油、ポリオキシエチレンソルビトール脂肪酸エステル等の非イオン性界面活性剤；ステアリン酸ナトリウム、パルミチン酸トリエタノールアミン等の脂肪酸石鹸で代表されるアニオン性界面活性剤；及びカチオン性界面活性剤、両性界面活性剤等の化粧品に汎用される界面活性剤が用いられる。
水溶性高分子としては、例えばカルボキシメチルセルロース、メチルセルロース、ヒドロキシメチルセルロース、ポリビニルアルコール、ポリビニルピロリドン、トラガントガム、カラギーナン、ローカストビーンガム、デキストリン、デキストリン脂肪酸エステル、カルボキシビニルポリマー、キサンタンガム、ゼラチン、アルギン酸ナトリウム、アラビアゴム等の化粧品に汎用される水溶性高分子が用いられる。
【００３５】
他の粉体としては、例えばタルク、マイカ、カオリン、セリサイト、白雲母、合成雲母、金雲母、紅雲母、黒雲母、リチア雲母、バーミキュライト、炭酸マグネシウム、炭酸カルシウム、珪藻土、珪酸マグネシウム、珪酸カルシウム、珪酸アルミニウム、珪酸バリウム、珪酸ストロンチウム、タングステン酸金属塩、ヒドロキシアパタイト、含水珪酸、無水珪酸、酸化マグネシウム、ベントナイト、ゼオライト、セラミクスパウダー、水酸化アルミニウム等の無機粉体；ナイロンパウダー、ポリエチレンパウダー、ポリメチルベンゾグアナミンパウダー、ポリメチルメタクリレートパウダー、四フッ化エチレンパウダー微結晶性セルロース、コメデンプンラウロイルリジン等の有機粉体；ステアリン酸カルシウム、ステアリン酸亜鉛、ステアリン酸マグネシウム、ミリスチン酸マグネシウム、セチルリン酸カルシウム、セチルリン酸亜鉛ナトリウム等の界面活性剤金属塩粉体；酸化チタンコーティング雲母、酸化チタンコーティングオキシ塩化ビスマス、オキシ塩化ビスマス、酸化チタンコーティングタルク、魚鱗箔、着色酸化チタンコーティング雲母等のパール顔料；アルミニウムパウダー、ステンレスパウダー、カッパーパウダー等の金属粉末等の化粧品に汎用される粉体、及びこれらをシリコン又はフッ素化合物で処理された粉体が用いられる。
【００３６】
保湿剤としては、例えばソルビトール、キシリトール、グリセリン、マルチトール、プロピレングリコール、１，３−ブチレングリコール、１，４−ブチレングリコール、ピロリドンカルボン酸ナトリウム、乳酸、乳酸ナトリウム、ポリエチレングリコール等の化粧品に汎用される保湿剤が用いられる。防腐剤としては、例えばパラオキシ安息香酸アルキルエステル、安息香酸ナトリウム、ソルビン酸カリウム等の化粧品に汎用される防腐剤が用いられる。薬剤としては、例えばビタミン類、生薬、消炎剤、殺菌剤等の化粧品に汎用される薬剤が用いられる。紫外線吸収剤としては、例えばパラアミノ安息香酸系紫外線吸収剤、アントラニル系紫外線吸収剤、サリチル酸系紫外線吸収剤、桂皮酸系紫外線吸収剤、ベンゾフェノン系紫外線吸収剤等の化粧品に汎用される紫外線吸収剤が用いられる。
【００３７】
色素としては、例えば赤色３号、赤色１０４号、赤色１０６号、赤色２０１号、赤色２０２号、赤色２０４号、赤色２０５号、赤色２２０号、赤色２２６号、赤色２２７号、赤色２２８号、赤色２３０号、赤色４０１号、赤色５０５号、黄色４号、黄色５号、黄色２０２号、黄色２０３号、黄色２０４号、黄色４０１号、青色１号、青色２号、青色２０１号、青色４０４号、緑色３号、緑色２０１号、緑色２０４号、緑色２０５号、橙色２０１号、橙色２０３号、橙色２０４号、橙色２０６号、橙色２０７号等のタール色素；カルミン酸、ラッカイン酸、ブラジリン、クロシン等の天然色素等の化粧品に汎用される色素が用いられる。
【００３８】
無機塩又は有機酸塩としては、塩酸、硫酸、硝酸等の無機酸；クエン酸、酒石酸、乳酸、リンゴ酸等のオキシカルボン酸；ギ酸、酢酸、ソルビン酸等のカルボン酸；又はサリチル酸、安息香酸等の芳香族カルボン酸のアルカリ金属塩、アルカリ土類金属塩又はアルミニウム塩が挙げられる。
【００３９】
好ましい無機塩又は有機酸塩の具体例としては、硫酸カリウム、硫酸ナトリウム、硫酸マグネシウム、硫酸アルミニウム、硝酸カリウム、硝酸ナトリウム、硝酸マグネシウム、硝酸アルミニウム、硝酸カルシウム、塩化カリウム、塩化マグネシウム、塩化ナトリウム、塩化カルシウム、塩化アルミニウム、炭酸カリウム、炭酸ナトリウム、炭酸アルミニウム、酢酸カリウム、酢酸ナトリウム、酢酸カルシウム、酢酸マグネシウム、ギ酸ナトリウム、ギ酸カリウム、ギ酸マグネシウム、クエン酸ナトリウム、酒石酸ナトリウム、ソルビン酸カリウム、ソルビン酸ナトリウム、サリチル酸ナトリウム、安息香酸カリウム、安息香酸ナトリウム等が挙げられ、特に硫酸カリウム、硫酸マグネシウム、塩化カリウム、塩化マグネシウム、塩化アルミニウム、クエン酸ナトリウム、酒石酸ナトリウム、ソルビン酸カリウム、サリチル酸ナトリウム及び安息香酸ナトリウムが好ましい。
【００４０】
これらの無機塩又は有機酸塩は、塩の状態でファンデーション組成中に配合しても良いが、ファンデーション製造時に対応する酸物質及び塩基物質を、塩を形成するのに必要な化学量論的量加え、製造してもよい。
また、水は任意の量で配合することができる。
【００４１】
本発明のファンデーションは、その外観色が肌色、すなわちマンセル表色系において、色相５Ｒ〜１０ＹＲ、明度３．０〜８．５、彩度１．５〜１０．０の範囲内であり、好ましくは色相５Ｒ〜１０ＹＲ、明度５〜８、彩度２．５〜５．２の範囲内、特に色相２．０ＹＲ〜９．０ＹＲ、明度５．２〜８．０、彩度２．７〜４．７の範囲内であるのが好ましい。
なお、本発明において、これらの色相、明度及び彩度は、ＪＩＳ Ｚ ８７２１（色の表示方法−三属性による表示）に従って求めたものである。
【００４２】
本発明のファンデーションは、前記のような外観色になるよう、通常の方法に従って製造することができ、例えば固型ファンデーション、乳化ファンデーション（油中水型、水中油型）、液状ファンデーション、油性ファンデーション等のいずれの剤型にもすることができ、特に乳化ファンデーション、更に油中水型乳化ファンデーションとして好適である。
【００４３】
【発明の効果】
本発明のファンデーションは、肌色補正効果、すなわち、それぞれの人の肌の色をそのまま生かしつつ、例えば少し明るめに、あるいは少し血色良くといったように肌の色を微妙に変化させることにより、素肌をより美しい素肌に見せる効果に優れたものであり、透明感が高く、自然で素肌っぽく、美しい仕上がりが得られ、しかも毛穴等の凹凸を目立たなくすることができ、使用感も良好である。
【００４４】
【実施例】
次に、実施例を挙げて本発明を更に説明するが、本発明はこれら実施例に限定されるものではない。
【００４５】
製造例１
平均粒子径０．４μｍの酸化チタン粉末５０ｇと、２４重量％のケイ酸ナトリウム水溶液２００mlを混合し、懸濁液を得た。次に、上記懸濁液に、スパン系非イオン性界面活性剤を２重量％含むベンゼン３００mlを加え、乳化させて油中水分散型エマルジョンを得た後、このエマルジョンに２０重量％の硫酸アンモニウム水溶液を添加し、ケイ酸ナトリウムと反応させて、内部に酸化チタンの粉末を分散する酸化ケイ素を得た。更に、この粒子を濾別し、水洗し、メタノールで洗浄後、１００℃で１時間乾燥して、平均粒子径が約６μｍの内部に酸化チタンの粉末が分散された酸化ケイ素を得た。次に、上記酸化チタン１００ｇを含む母材粒子に、酸化ジルコニウムゾル（単分散“トレセラム”ゾルＺＳ−ＯＡ；東レ社製）を酸化ジルコニウムが２０ｇになるように加え、更に水を加えて４００mlとし、９０℃で２時間攪拌、加熱し、更に濾過、水洗し、１００℃で１時間乾燥した。次に、乾燥後、空気中にて４００℃で５時間焼成し、内部に酸化チタンの粉末を分散する酸化ケイ素からなる母材粒子の表面に酸化ジルコニウムを担持した球状複合粉体Ａを得た。
【００４６】
製造例２
製造例１で得られた球状複合粉体Ａ５０ｇを、アルミン酸ソーダ４ｇが溶解した水溶液に分散させ、これに硫酸を加えて加水分解することにより複合粒子表面に水酸化アルミニウムを析出させた。次に粉体を濾別し、水洗後乾燥させ、水酸化アルミニウム処理複合粉体を得た。これを更に６００℃で１時間焼成し、アルミナ被覆粉体を得た。
【００４７】
次に、丸底フラスコ（又はニーダー）に上記アルミナ被覆粉体５０ｇを入れ、これにＣ₈Ｆ₁₇ＣＨ₂ＣＨ₂ＯＰ（Ｏ）（ＯＨ）₂と（Ｃ₈Ｆ₁₇ＣＨ₂ＣＨ₂Ｏ）₂Ｐ（Ｏ）ＯＨとのほぼ１：１の混合物２．５ｇをイソプロピルアルコール５００ｇに加熱溶解（５０℃）しておいたものを加え、６０℃で４時間混合し、その後、４０〜５０℃にてイソプロピルアルコールを減圧留去し、乾燥して球状複合粉体Ｂを得た。
【００４８】
実施例１（Ｏ／Ｗ型乳液状ファンデーション）
表１及び表２に示す組成のＯ／Ｗ型乳液状ファンデーションを常法により製造し、得られたファンデーションを使用したときの仕上がりについて評価した。結果を表１及び表２に示す。
【００４９】
（評価方法）
専門パネラー１０名により、顔にファンデーションを塗布したときの仕上がりを、透明感、自然な素肌感覚、肌色補正効果、美しさ及び毛穴の目立ち難さについて官能評価し、以下の基準で判定した。
◎：７名以上が良好と回答。
○：４名以上、７名未満が良好と回答。
△：２名以上、４名未満が良好と回答。
×：１名以下が良好と回答。
【００５０】
【表１】

【００５１】
【表２】

【００５２】
表１及び表２の結果から明らかなように、本発明品はいずれも、透明感があり、肌色補正効果に優れると共に、肌の色相をきれいに、自然に仕上げることができ、しかも毛穴が目立たなく、また使用感も良好であった。
【００５３】
実施例２（Ｗ／Ｏ型乳液状ファンデーション）
表３及び表４に示す組成のＷ／Ｏ型乳液状ファンデーションを常法により製造し、得られたファンデーションを使用したときの仕上がりについて、実施例１と同様にして評価した。結果を表３及び表４に示す。
【００５４】
【表３】

【００５５】
【表４】

【００５６】
表３及び表４の結果から明らかなように、本発明品はいずれも、肌色補正効果に優れると共に、透明感があり、自然で素肌っぽく、しかも美しく、毛穴が目立たない仕上がりが得られた。また、使用感も良好であった。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a foundation for a bare skin sensation that can be beautifully finished by correcting the hue of the skin while having a transparent feeling, and that makes unevenness such as pores inconspicuous, and has an excellent usability.
[0002]
[Prior art]
The foundation is blended with color pigments such as titanium oxide and iron oxide. Since these coloring pigments have high hiding power, when a foundation containing the pigment is applied to the skin, the hue of the skin is adjusted and the skin can be made beautiful.
[0003]
In conventional foundations, for example, there is a tendency to add a large amount of these color pigments for the purpose of covering skin spots, freckles, and irregularities such as pores. However, since the hiding power of the color pigment is due to light scattering, when it is added in a large amount, the finished product lacks a transparent feeling and a natural finish like a bare skin cannot be obtained.
[0004]
In recent years, especially in the late teens to early twenties, skin-like finishes have been favored, and the skin tone has been changed to make the skin beautiful and natural and skin-like, but the unevenness of pores and the like has not been noticeable. There is a need for cosmetics to do.
However, when no color pigment is blended at all, there is no light scattering from it, so the transparency is increased, but the hue of the skin cannot be changed, and unevenness such as pores can be made inconspicuous. Can not. Furthermore, for the purpose of shielding ultraviolet rays, when inorganic ultrafine particles such as titanium oxide and zinc oxide having a particle size of 0.1 μm or less, and extender pigments such as talc and mica are mixed, whitening occurs due to the scattering of light. There was a problem that the gap was conspicuous.
[0005]
[Problems to be solved by the invention]
Therefore, the object of the present invention is to make the skin tone beautiful and natural by correcting the hue of the skin while having a transparent feeling, and also making the unevenness such as pores inconspicuous, and providing an excellent feeling of skin feeling. To provide a foundation.
[0006]
[Means for Solving the Problems]
Under such circumstances, the present inventors have conducted intensive research, and as a result, the foundation of the skin color in which a color pigment and a specific spherical composite powder are blended at a specific ratio is beautifully corrected by correcting the hue of the skin. The present invention has been completed by finding out that it can be finished, and unevenness such as pores can be made inconspicuous and that it has excellent usability.
[0007]
That is, the present invention includes the following components (A) and (B):
(A) 2.0 to 3.7 % by weight of a color pigment,
(B) One or more spherical composite powders selected from resin and silicon oxide in which titanium oxide or zinc oxide powder is dispersed inside and on which zirconium oxide or aluminum oxide is supported 0.1 to 15.0% by weight
In the Munsell color system, the appearance color is in the range of hue 2.0YR-9.0YR , lightness 5.2-8.0 , saturation 2.7-4.7. To provide a foundation.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The coloring pigment of the component (A) used in the present invention is not particularly limited as long as it is used for ordinary cosmetics and the like. For example, titanium oxide, zinc oxide, zirconium oxide, iron oxide (Bengara), titanic acid. Examples thereof include iron, iron hydroxide, ocher, black iron oxide, carbon black, mango violet, cobalt violet, chromium oxide, chromium hydroxide, cobalt titanium, ultramarine blue, and bitumen.
These colored pigments preferably have an average particle diameter of 0.1 to 1.0 μm, particularly 0.2 to 0.5 μm from the viewpoint of coloring power, feeling of use, and the like.
[0009]
In addition, these colored pigments may be those whose surface has been subjected to water repellent treatment using a commonly used water repellent treatment agent. Examples of the water-repellent treatment agent used here include silicone oil, fatty acid metal salt, alkyl phosphoric acid, alkali metal salt or amine salt of alkyl phosphoric acid, N-mono long chain (carbon number 8 to 22) aliphatic acyl base. Amino acids and fluorine compounds having a perfluoroalkyl group.
[0010]
The silicone oil is not particularly limited as long as it is used for ordinary cosmetics and the like. For example, silicone oil containing Si—H group such as methylhydrogenpolysiloxane, silicone oil containing Si—OH group, cyclic dimethyl Examples include polysiloxane, dimethyl silicone, and the like. Specific examples include dimethylpolysiloxane, cyclic dimethylpolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, cyclic methylhydrogenpolysiloxane, dimethylsiloxane methyl (polyoxyethylene). ) Siloxane copolymer, dimethyl siloxane methyl (polyoxypropylene) siloxane copolymer, myristyl silicone, dimethyl siloxane methyl stearoxy siloxane copolymer, dimethyl siloxane methyl Luoxysiloxane copolymer, methylpolysiloxane emulsion, silicone resin, silicone grease, polyether modified silicone, methylstyryl modified silicone, alkyl modified silicone, higher fatty acid ester modified silicone, higher alkoxy modified silicone, phenol modified silicone, higher fatty acid modified Examples include silicone.
[0011]
As the fatty acid metal salt, those having 12 to 18 carbon atoms are particularly preferable, and as salts thereof, for example, salts of calcium, magnesium, zinc, aluminum and the like can be mentioned, and among them, an aluminum salt is particularly preferable. Therefore, preferable examples of the fatty acid metal salt include aluminum monostearate, aluminum distearate, aluminum monooleate, aluminum monopalmitate, aluminum monolaurate and the like, but are not limited to these examples.
[0012]
Examples of the alkyl phosphoric acid or its alkali metal salt or amine salt include those represented by the general formula (1) or (2), for example, dicetyl phosphoric acid, monolauryl phosphoric acid, sodium salt of monolauryl phosphoric acid, potassium salt Or an amine salt, the sodium salt of dicetyl phosphoric acid, potassium salt, or an amine salt is mentioned.
[0013]
[Chemical 1]

[0014]
In the general formula (1) and the general formula (2), the hydrocarbon groups represented by R ^{1 to} R ³ are those having 1 to 45 carbon atoms, and those having 8 or more carbon atoms are particularly desirable. When the number of carbon atoms is less than 8, the alkyl phosphate metal salt exhibits tackiness, and the lubricity and spreadability may be lowered. Examples of such hydrocarbon groups include octyl, nonyl, decyl, dodecyl, undecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, heneicosyl, docosyl, tricosyl, tetracosyl, pentacosyl, hexacosyl, heptacosyl, octacosyl , Nonacosyl, triacontyl, hentriacontyl, dotriacontyl, octenyl, nonenyl, decenyl, dodecenyl, undecenyl, tridecenyl, tetradecenyl, pentadecenyl, hexadecenyl, heptadecenyl, octadecenyl, nonadecenyl, eicosenyl, hetacocenyl, tricocenyl, tricocenyl, tricocenyl, tricocenyl , Octacosenyl, Nacocenyl, triacontenyl, hentriacontenyl, dotriacontenyl, octadienyl, nonadienyl, decadienyl, dodecadienyl, undecadienyl, tridecadienyl, tetradecadienyl, pentadecadienyl, hexadecadienyl, heptadecadienyl, octadecadienyl Dienyl, Nonadecadienyl, Eicosadienyl, Henecosadienyl, Docosadienyl, Tricosadienyl, Tetracosadienyl, Pentacosadienyl, Hexacosadienyl, Heptacosadienyl, Octacosadienyl, Nonacosadienyl, Triacontadienyl, Hentria Contadienyl, dotriacontadienyl, 2-hexyldecyl, 2-octylundecyl, 2-decyltetradecyl, 2-undecylhexadecyl, 2-tetradecylo Tadeshiru group, and the like. Further, in the above general formula (1) and the general formula (2), the alkali metal represented by X ¹ to X ^3, potassium, sodium and the like, and amine represented by X ¹ to X ³ is Examples include monoethanolamine, diethanolamine, triethanolamine, triisopropanolamine, morpholine, and arginine.
[0015]
Examples of the basic amino acid constituting the N-mono long chain (carbon number 8 to 22) aliphatic acyl basic amino acid include α, γ-diaminobutyric acid, ornithine, lysine, arginine, histidine and the like. These may be optically active or racemic. The long-chain aliphatic acyl group is a saturated or unsaturated linear or branched aliphatic acyl group having 8 to 22 carbon atoms, which may be a single chain length or a mixed chain length. Also good. Specific examples include 2-ethylhexanoyl, capryloyl, caproyl, lauroyl, myristoyl, palmitoyl, stearoyl, isostearoyl, oleoyl, behenoyl, cocoyl, beef tallow fatty acid acyl, and hardened tallow fatty acid acyl. The binding site of the long chain acyl group to the basic amino acid is the amino group at the α-position or the amino group at the ω-position, but in arginine and histidine, it is limited to the amino group at the α-position. Specific examples include Nε-2-ethylhexanoyl lysine, Nε-lauroyl lysine, Nε-cocoyl lysine, Nε-palmitoyl lysine, Nε-isostearoyl lysine, Nε-cured tallow fatty acid acyl lysine, Nα-capryloyl lysine, Nα-. Lauroyl lysine, Nα-myristoyl lysine, Nα-oleoyl lysine, Nα-behenoyl lysine, Nδ-cocoyl ornithine, Nδ-stearoyl ornithine, Nδ-tallow fatty acid acylornithine, Nα-ethylhexanoylornithine, Nα-lauroylornithine, Nα-iso Stearoylornithine, Nγ-palmitoyl-α, γ-diaminobutyric acid, Nα-tallow fatty acid acyl-α, γ-diaminobutyric acid, Nα-caproylarginine, Nα-lauroylarginine, Nα-palmitoylarginine, Nα-cured Fat fatty acyl arginine, N @ .alpha cocoyl histidine, N @ .alpha isostearoyl but histidine and the like, but are not limited to these examples.
[0016]
Examples of the fluorine compound having a perfluoroalkyl group include:
[Chemical 2]

[0018]
A polyfluoroalkyl phosphoric acid (US Pat. No. 3,632,744), a fluoroalkyl di (oxyethyl) amine phosphoric ester (Japanese Patent Laid-Open No. 62-250074), and a resin having a perfluoroalkyl group (Japanese Patent Laid-Open No. 55-167209). No.), tetrafluoroethylene resin, perfluoroalcohol, perfluoroepoxy compound, sulfoamide-type fluorophosphoric acid, perfluorosulfate, perfluorocarboxylate, perfluoroalkylsilane (JP-A-2-218603), etc. Is mentioned. ) And the like.
[0019]
As a method of treating the coloring pigment with silicone oil, the coloring pigment is dispersed in one or more kinds of silicone oil dissolved in an appropriate amount of hexane or the like, and after distilling off the solvent, the temperature is 100 to 200 ° C. for 2 to 10 hours. There is a method of treating and then drying. As a method of treating the color pigment with alkyl phosphoric acid, when X ¹ and X ² or X ³ in formulas (1) and (2) are hydrogen, the alkyl phosphoric acid is treated with a solvent such as isopropyl alcohol or hexane. There is a method in which a colored pigment is dispersed in a dissolved one, treated at 50 ° C. to 70 ° C. for 1 to 3 hours, and then dried after evaporation of the solvent. In the formulas (1) and (2), when X ¹ or X ² and X ³ are other than hydrogen (in the case of an alkali metal or amine), the above alkali metal salt or amine salt of alkyl phosphate is used. There is a method in which a colored pigment is dispersed in a solution dissolved in water, treated at 50 to 70 ° C. for 1 to 3 hours, neutralized with an appropriate acid, filtered while hot, washed with an aqueous ethanol solution, and dried. . The method for water-repellent treatment of these color pigments is not limited to the above example.
[0020]
Moreover, as a method for treating the color pigment with an N-mono long-chain aliphatic acyl basic amino acid, any of a dry method and a wet method can be used. The dry method is simple and effective, and a fine powder of N-mono long chain aliphatic acyl basic amino acid is stirred and mixed with a color pigment, or N-mono long chain aliphatic acyl basic amino acid and a color pigment are mixed. After mixing, the surface of the color pigment can be easily treated by co-grinding. In the wet method, N-mono long-chain aliphatic acyl basic amino acids are hardly soluble in neutral water and ordinary oils. Therefore, N-mono long-chain aliphatic acyl basic amino acids are used by using calcium chloride as a solubilizer. After dissolving in an organic solvent, the surface of the color pigment can be treated by bringing the color pigment into contact with each other, washing with water to remove calcium chloride and drying. Alternatively, an N-mono long chain aliphatic acyl basic amino acid is dissolved in acidic or alkaline water or an aqueous solvent and brought into contact with a color pigment, and then neutralized to near neutrality to form an N-mono length on the surface of the color pigment. The same surface treatment can be achieved by depositing and attaching a chain aliphatic acyl basic amino acid, removing the salt produced by neutralization by washing with water, and drying (Japanese Patent Laid-Open Nos. 61-7202 and 61-10503). .
[0021]
The color pigment of component (A) can be used alone or in combination of two or more, and is 0.5 to 4.0% by weight, preferably 1.0 to 3.9% by weight, particularly preferably in the total composition. Is blended in an amount of 2.0 to 3.7% by weight. If it is less than 0.5% by weight, the hue of the skin cannot be changed, and if it exceeds 4.0% by weight, it lacks transparency and a natural finish like a bare skin cannot be obtained.
[0022]
Resin and silicon oxide (hereinafter sometimes referred to as “base material particles”) constituting the spherical composite powder of component (B) used in the present invention are not particularly limited, but among these, Nylon resin such as nylon 6 resin, nylon 12 resin, copolymer resin of nylon 6 and nylon 12; powders such as polyethylene resin, polymethyl methacrylate resin, polyester resin, polystyrene resin, polyurethane resin, silicone resin, etc. However, nylon resin or silicone resin powder is preferred.
[0023]
The shape of the base material particles is not particularly limited, but any of spherical shape, columnar shape, rod shape, plate shape and the like can be used, and spherical shape is particularly preferable. Although the average particle diameter is not particularly limited, it is preferably 0.5 to 100 μm, particularly preferably 2 to 20 μm when the shape is spherical, and in the case of a columnar shape, rod shape, or plate shape, 1 to 100 μm in terms of spherical shape. Is preferable, and the range of 5 to 20 μm is particularly preferable. When the average particle diameter of the base material particles is within the above range, when the spherical composite powder is blended in the cosmetic, the user is less likely to feel uncomfortable.
[0024]
In the spherical composite powder of component (B), the titanium oxide or zinc oxide powder dispersed in the base material particles may be used alone or in combination. The average particle diameter is not particularly limited, but is preferably 0.005 to 2 μm, and particularly preferably 0.01 to 0.5 μm in order to improve dispersibility inside the base material particles.
The shape of the titanium oxide or zinc oxide powder is not particularly limited, and may be spherical, columnar, rod-shaped, plate-shaped, amorphous, or the like. Further, the blending amount is preferably 5 to 60% by weight, particularly 8 to 50% by weight, based on the base material particles, and if it is within this range, a sufficient ultraviolet absorption effect can be obtained, Dispersibility is also good.
[0025]
The method for dispersing titanium oxide or zinc oxide in the base material particles is not particularly limited. For example, when the base material particles are nylon resin, a cyclic lactam is heated and dissolved in paraffin or the like, and a desired amount is dissolved therein. While adding a powder of titanium oxide or zinc oxide and stirring, a polymerization accelerator such as phosphorus trichloride is added to cause alkali polymerization to form particles, and the particles are further filtered, and an organic solvent such as benzene or isopropyl is added. A method of washing with alcohol and drying; when the base material particle is a silicone resin, a powder of titanium oxide or zinc oxide is added to and mixed with an aqueous solution of ammonia or amine, and further hydrolyzable silane such as chlorosilane, Hydrogen silane, alkoxy silane, acetoxy silane are added to cause hydrolysis and condensation reaction to form particles, and the particles are further filtered and washed with water. Drying method: When the base material particles are silicon oxide, first, a suspension is prepared by adding a powder of titanium oxide or zinc oxide to sodium silicate, and then a surfactant and an oil-based dispersant such as benzene. After adding the above-mentioned suspension to this mixture and emulsifying it to obtain a water-in-oil dispersion emulsion, it is added with a salt such as ammonium sulfate or ammonium chloride to add sodium silicate. And particles, and the particles are filtered, washed with water, washed with an organic solvent such as methanol, and dried.
[0026]
Further, in the spherical composite powder of component (B), the average particle diameter of the zirconium oxide or aluminum oxide powder supported on the surface of the base material particles is not particularly limited, but is preferably, for example, 0.005 to 2 μm, particularly 0. A thickness of 0.01 to 0.5 μm is preferable because the support property to the base material particles and the slipperiness of the spherical composite powder are improved.
The shape of the zirconium oxide or aluminum oxide powder is not particularly limited, but is preferably spherical, and is preferably supported in a semi-submerged state on the surface of the base material particle and covering the surface in a single layer. The blending amount is preferably 10 to 60% by weight, particularly preferably 20 to 40% by weight, based on the base material particles containing titanium oxide or zinc oxide, so that the surface of the base material particles can be uniformly coated, and thus slippery. Is preferable because it improves. The zirconium oxide or aluminum oxide powder may be used alone or in combination.
[0027]
In addition, the method of supporting the zirconium oxide or aluminum oxide powder on the surface of the base material particle in which the titanium oxide or zinc oxide powder is dispersed is not particularly limited. For example, when the base material particle is a nylon resin or a silicone resin In this case, zirconium oxide or aluminum oxide powder is attached to the surface using the chargeability of these resins, and physical force is applied using an automatic mortar or hybridizer, etc., and frictional heat is generated at this time. Then, the nylon resin or silicone resin is softened at the surface layer of the base material particles, and at the same time, zirconium oxide or aluminum oxide powder is sunk and supported on the surface by physical force; when the base material particles are silicon oxide, oxidation Add a powder suspension of zirconium or aluminum oxide or a sol of zirconium oxide or aluminum oxide, After adding and mixing the base material particles in which silicon or zinc oxide is dispersed, heating at 70 to 100 ° C., attaching zirconium oxide or aluminum oxide to the surface of the particles, filtering this, washing with water, 400 The method of baking at -500 degreeC is mentioned.
[0028]
The spherical composite powder in which silicon oxide or zinc oxide is dispersed in the interior thus obtained and zirconium oxide or aluminum oxide is supported on the surface is further treated with a water repellent treatment using a commonly used water repellent treatment agent. It is possible to obtain excellent water and oil repellency. The method for the water repellent treatment is not particularly limited, and for example, the same water repellent treatment agent as in the case of the color pigment of component (A) is used, and the treatment can be performed by the same method. In the case of a spherical composite powder in which silicon oxide or zinc oxide is dispersed inside and zirconium oxide is supported on the surface, the surface is treated with aluminum oxide as a previous step of the hydrophobization treatment. Various methods can be applied to this.
[0029]
As a method of treating the surface of the spherical composite powder carrying the zirconium oxide powder with aluminum oxide, base material particles and one or more aqueous solutions such as aluminum sulfate, sodium aluminate, and aluminum chloride are mixed. One or more acidic or basic precipitant solutions are added to the metal, aluminum hydroxide is precipitated on the surface of the supported base material particles by a metal salt hydrolysis reaction, and the salt generated by neutralization is removed by washing with water and dried. Surface treatment method: a method in which aluminum hydroxide is precipitated on the surface of the support base material particles and baked at 500 to 1000 ° C. to make the surface aluminum oxide; powder of aluminum oxide on the surface of the support base material particles And a method of treating aluminum oxide by stirring and mixing with a hybridizer or the like.
[0030]
The treatment amount of aluminum oxide or aluminum hydroxide for the spherical composite powder is preferably 0.05 to 20% by weight, particularly 0.5 to 15% by weight, based on the spherical composite powder.
[0031]
The spherical composite powder of component (B) preferably has an average particle size of 0.5 to 100 μm, particularly 5 to 20 μm.
[0032]
The spherical composite powder of component (B) can be used alone or in combination of two or more, and is 0.1 to 15.0% by weight, preferably 2.0 to 14.0% by weight in the total composition. %, Particularly preferably 5.0 to 13.0% by weight. If it is less than 0.1% by weight, the effect of blurring the unevenness such as pores cannot be obtained sufficiently, and if it exceeds 15.0% by weight, the lightness increases excessively when the powder enters the unevenness such as pores, and on the contrary, it becomes white. It will stand out.
[0033]
In the foundation of the present invention, in addition to the above-mentioned components, as long as the effects of the present invention are not impaired, components to be blended in ordinary cosmetics such as various oils, surfactants, water-soluble polymers, etc. Powders, humectants, preservatives, drugs, ultraviolet absorbers, dyes, inorganic or organic salts, fragrances, chelating agents, pH adjusters, water, and the like can be blended.
[0034]
Examples of the oil include liquid paraffin, petrolatum, paraffin wax, squalane, beeswax, carnauba wax, olive oil, lanolin, higher alcohol, fatty acid, higher fatty acid, ester oil, ceresin, microcrystalline wax, candelilla wax, diglyceride, triglyceride, silicone oil. Oils commonly used in cosmetics such as perfluoropolyether, perfluorodecalin, perfluorooctane, jojoba oil, octyldodecyl myristate, and neopentyl glycol dioctanoate are used.
Examples of the surfactant include polyoxyethylene alkyl ether, polyoxyethylene fatty acid ester, polyoxyethylene sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene Nonionic surfactants such as oxyethylene sorbitol fatty acid esters; anionic surfactants typified by fatty acid soaps such as sodium stearate and triethanolamine palmitate; and cationic surfactants and amphoteric surfactants Surfactants that are widely used in cosmetics are used.
Examples of water-soluble polymers include carboxymethylcellulose, methylcellulose, hydroxymethylcellulose, polyvinyl alcohol, polyvinylpyrrolidone, tragacanth gum, carrageenan, locust bean gum, dextrin, dextrin fatty acid ester, carboxyvinyl polymer, xanthan gum, gelatin, sodium alginate, gum arabic, etc. Water-soluble polymers that are widely used in cosmetics are used.
[0035]
Other powders include, for example, talc, mica, kaolin, sericite, muscovite, synthetic mica, phlogopite, mica, biotite, lithia mica, vermiculite, magnesium carbonate, calcium carbonate, diatomaceous earth, magnesium silicate, calcium silicate. , Aluminum silicate, Barium silicate, Strontium silicate, Tungstic metal salt, Hydroxyapatite, Hydrous silicate, Anhydrous silicate, Magnesium oxide, Bentonite, Zeolite, Ceramics powder, Inorganic powder such as aluminum hydroxide; Nylon powder, Polyethylene powder, Poly Organic powders such as methylbenzoguanamine powder, polymethylmethacrylate powder, ethylene tetrafluoride powder microcrystalline cellulose, rice starch lauroyllysine; calcium stearate, zinc stearate, steer Surfactant metal salt powder such as magnesium phosphate, magnesium myristate, calcium cetyl phosphate, sodium cetyl phosphate; titanium oxide coated mica, titanium oxide coated bismuth oxychloride, bismuth oxychloride, titanium oxide coated talc, fish scale foil, coloring Pearl pigments such as titanium oxide-coated mica; powders commonly used in cosmetics such as metal powders such as aluminum powder, stainless powder, and copper powder; and powders obtained by treating these with silicon or fluorine compounds are used.
[0036]
As the humectant, for example, it is widely used in cosmetics such as sorbitol, xylitol, glycerin, maltitol, propylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, sodium pyrrolidonecarboxylate, lactic acid, sodium lactate, and polyethylene glycol. A moisturizing agent is used. As the preservative, for example, a preservative widely used in cosmetics such as paraoxybenzoic acid alkyl ester, sodium benzoate, potassium sorbate and the like is used. As the drug, for example, drugs commonly used in cosmetics such as vitamins, herbal medicines, anti-inflammatory agents, and bactericides are used. Examples of the UV absorber include UV absorbers commonly used in cosmetics such as paraaminobenzoic UV absorbers, anthranyl UV absorbers, salicylic acid UV absorbers, cinnamic acid UV absorbers, and benzophenone UV absorbers. Used.
[0037]
Examples of the dye include Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228, Red 230, Red 401, Red 505, Yellow 4, Yellow 5, Yellow 202, Yellow 203, Yellow 204, Yellow 401, Blue 1, Blue 2, Blue 201, Blue 404 Tar dyes such as Green No. 3, Green No. 201, Green No. 204, Green No. 205, Orange No. 201, Orange No. 203, Orange No. 204, Orange No. 206, Orange No. 207; Carminic acid, laccaic acid, bradylin, crocin A pigment that is widely used in cosmetics such as natural pigments is used.
[0038]
Examples of inorganic salts or organic acid salts include inorganic acids such as hydrochloric acid, sulfuric acid and nitric acid; oxycarboxylic acids such as citric acid, tartaric acid, lactic acid and malic acid; carboxylic acids such as formic acid, acetic acid and sorbic acid; or salicylic acid and benzoic acid An alkali metal salt, an alkaline earth metal salt or an aluminum salt of an aromatic carboxylic acid such as
[0039]
Specific examples of preferred inorganic salts or organic acid salts include potassium sulfate, sodium sulfate, magnesium sulfate, aluminum sulfate, potassium nitrate, sodium nitrate, magnesium nitrate, aluminum nitrate, calcium nitrate, potassium chloride, magnesium chloride, sodium chloride, calcium chloride. , Aluminum chloride, potassium carbonate, sodium carbonate, aluminum carbonate, potassium acetate, sodium acetate, calcium acetate, magnesium acetate, sodium formate, potassium formate, magnesium formate, sodium citrate, sodium tartrate, potassium sorbate, sodium sorbate, salicylic acid Sodium, potassium benzoate, sodium benzoate, etc., especially potassium sulfate, magnesium sulfate, potassium chloride, magnesium chloride, aluminum chloride Beam, sodium citrate, sodium tartrate, potassium sorbate, sodium salicylate and sodium benzoate preferred.
[0040]
These inorganic salts or organic acid salts may be incorporated into the foundation composition in the form of a salt, but the stoichiometric amount necessary to form a salt with the corresponding acid substance and base substance at the time of the foundation production. In addition, it may be manufactured.
Moreover, water can be mix | blended in arbitrary quantity.
[0041]
In the foundation of the present invention, the appearance color is skin color, that is, in the Munsell color system, the hue is 5R to 10YR, the brightness is 3.0 to 8.5, and the saturation is 1.5 to 10.0, preferably Hue 5R-10YR, lightness 5-8, saturation 2.5-5.2, especially hue 2.0YR-9.0YR, lightness 5.2-8.0, saturation 2.7-4. Preferably it is within the range of 7.
In the present invention, the hue, lightness, and saturation are determined according to JIS Z 8721 (color display method—display by three attributes).
[0042]
The foundation of the present invention can be produced according to a usual method so as to have the above-mentioned appearance color, for example, solid foundation, emulsification foundation (water-in-oil type, oil-in-water type), liquid foundation, oily foundation, etc. And is particularly suitable as an emulsifying foundation, and further as a water-in-oil emulsifying foundation.
[0043]
【The invention's effect】
The foundation of the present invention provides a skin color correction effect, i.e., by making the skin color of each person as it is, while making the skin color more subtle, e.g. slightly brighter or slightly tanned. It has excellent effects on beautiful skin, is highly transparent, has a natural and skin-like appearance, and can make the irregularities such as pores inconspicuous and has a good feeling of use.
[0044]
【Example】
EXAMPLES Next, although an Example is given and this invention is further demonstrated, this invention is not limited to these Examples.
[0045]
Production Example 1
50 g of titanium oxide powder having an average particle size of 0.4 μm and 200 ml of a 24 wt% aqueous sodium silicate solution were mixed to obtain a suspension. Next, 300 ml of benzene containing 2% by weight of a spanning nonionic surfactant is added to the above suspension and emulsified to obtain a water-in-oil dispersion type emulsion. Then, a 20% by weight ammonium sulfate aqueous solution is added to the emulsion. Was added and reacted with sodium silicate to obtain silicon oxide in which titanium oxide powder was dispersed. Further, the particles were separated by filtration, washed with water, washed with methanol, and dried at 100 ° C. for 1 hour to obtain silicon oxide in which titanium oxide powder was dispersed in an average particle diameter of about 6 μm. Next, zirconium oxide sol (monodispersed “Traceram” sol ZS-OA; manufactured by Toray Industries, Inc.) is added to the base material particles containing 100 g of titanium oxide so that the zirconium oxide becomes 20 g, and water is further added to make 400 ml. The mixture was stirred and heated at 90 ° C. for 2 hours, further filtered, washed with water, and dried at 100 ° C. for 1 hour. Next, after drying, it was fired in air at 400 ° C. for 5 hours to obtain a spherical composite powder A carrying zirconium oxide on the surface of base material particles made of silicon oxide in which titanium oxide powder was dispersed. .
[0046]
Production Example 2
50 g of the spherical composite powder A obtained in Production Example 1 was dispersed in an aqueous solution in which 4 g of sodium aluminate was dissolved, and sulfuric acid was added thereto to cause hydrolysis to precipitate aluminum hydroxide on the surface of the composite particles. Next, the powder was filtered off, washed with water and dried to obtain an aluminum hydroxide-treated composite powder. This was further fired at 600 ° C. for 1 hour to obtain an alumina-coated powder.
[0047]
Next, 50 g of the above-mentioned alumina-coated powder is put into a round bottom flask (or kneader), and C ₈ F ₁₇ CH ₂ CH ₂ OP (O) (OH) ₂ and (C ₈ F ₁₇ CH ₂ CH ₂ O) are added thereto. ₂ 2.5 g of a 1: 1 mixture with P (O) OH was dissolved in 500 g of isopropyl alcohol by heating (50 ° C.), mixed at 60 ° C. for 4 hours, and then 40-50 ° C. Isopropyl alcohol was distilled off under reduced pressure and dried to obtain spherical composite powder B.
[0048]
Example 1 (O / W type emulsion foundation)
O / W type emulsion foundations having the compositions shown in Tables 1 and 2 were produced by a conventional method, and the finish when the obtained foundations were used was evaluated. The results are shown in Tables 1 and 2.
[0049]
(Evaluation methods)
Ten professional panelists evaluated the finish when applying the foundation on the face with respect to transparency, natural skin sensation, skin color correction effect, beauty and difficulty of conspicuous pores, and judged according to the following criteria.
A: 7 or more responded that they were good.
○: 4 or more and less than 7 answered good.
Δ: 2 or more and less than 4 responded that they were good.
×: 1 or less responded good.
[0050]
[Table 1]

[0051]
[Table 2]

[0052]
As is clear from the results in Tables 1 and 2, the products of the present invention are both transparent and excellent in skin color correction effect, and can cleanly and naturally finish the skin hue, and the pores are inconspicuous. The usability was also good.
[0053]
Example 2 (W / O type emulsion foundation)
W / O type emulsion foundations having the compositions shown in Table 3 and Table 4 were produced by a conventional method, and the finish when the obtained foundation was used was evaluated in the same manner as in Example 1. The results are shown in Tables 3 and 4.
[0054]
[Table 3]

[0055]
[Table 4]

[0056]
As is clear from the results in Tables 3 and 4, the products of the present invention were both excellent in skin color correction effect, transparent, natural and skin-like, beautiful, and finished with inconspicuous pores. . Moreover, the usability was also good.

Claims (6)

The following components (A) and (B):
(A) 2.0 to 3.7 % by weight of a color pigment,
(B) One or more spherical composite powders selected from resin and silicon oxide in which titanium oxide or zinc oxide powder is dispersed inside and on which zirconium oxide or aluminum oxide is supported 0.1 to 15.0% by weight
In the Munsell color system, the appearance color is in the range of hue 2.0YR-9.0YR , lightness 5.2-8.0 , saturation 2.7-4.7. Foundation to do.   The foundation according to claim 1, which is an emulsified foundation.   The foundation according to claim 2, which is a water-in-oil emulsified foundation.   The foundation according to any one of claims 1 to 3, wherein the color pigment of the component (A) has been subjected to water repellent treatment.   The resin of component (B) is at least one selected from nylon resin, polyethylene resin, polymethyl methacrylate resin, polyester resin, polystyrene resin, polyurethane resin, and silicone resin. Foundation.   The foundation according to any one of claims 1 to 5, wherein the spherical composite powder of the component (B) is further water-repellent treated on the surface thereof.