JP4056255B2 - New powder for cosmetics and cosmetics containing the same - Google Patents
New powder for cosmetics and cosmetics containing the same Download PDFInfo
- Publication number
- JP4056255B2 JP4056255B2 JP2002005513A JP2002005513A JP4056255B2 JP 4056255 B2 JP4056255 B2 JP 4056255B2 JP 2002005513 A JP2002005513 A JP 2002005513A JP 2002005513 A JP2002005513 A JP 2002005513A JP 4056255 B2 JP4056255 B2 JP 4056255B2
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- cosmetics
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- silica
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Links
- 239000002537 cosmetic Substances 0.000 title claims description 68
- 239000000843 powder Substances 0.000 title claims description 66
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 60
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 40
- 239000010936 titanium Substances 0.000 claims description 40
- 229910052719 titanium Inorganic materials 0.000 claims description 40
- 239000010445 mica Substances 0.000 claims description 39
- 229910052618 mica group Inorganic materials 0.000 claims description 39
- 239000000377 silicon dioxide Substances 0.000 claims description 29
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 27
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 23
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 15
- 239000002932 luster Substances 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 9
- 238000000576 coating method Methods 0.000 claims description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 8
- 229910052709 silver Inorganic materials 0.000 claims description 8
- 239000004332 silver Substances 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 36
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 16
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 14
- 239000002245 particle Substances 0.000 description 13
- 239000007864 aqueous solution Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 7
- 239000004202 carbamide Substances 0.000 description 7
- 239000012046 mixed solvent Substances 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 5
- 238000004876 x-ray fluorescence Methods 0.000 description 5
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- PUPZLCDOIYMWBV-UHFFFAOYSA-N (+/-)-1,3-Butanediol Chemical compound CC(O)CCO PUPZLCDOIYMWBV-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- -1 amino acid salt Chemical class 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- GLDOVTGHNKAZLK-UHFFFAOYSA-N octadecan-1-ol Chemical compound CCCCCCCCCCCCCCCCCCO GLDOVTGHNKAZLK-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- PRAKJMSDJKAYCZ-UHFFFAOYSA-N squalane Chemical compound CC(C)CCCC(C)CCCC(C)CCCCC(C)CCCC(C)CCCC(C)C PRAKJMSDJKAYCZ-UHFFFAOYSA-N 0.000 description 2
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
- XPFCZYUVICHKDS-UHFFFAOYSA-N 3-methylbutane-1,3-diol Chemical compound CC(C)(O)CCO XPFCZYUVICHKDS-UHFFFAOYSA-N 0.000 description 1
- 239000004264 Petrolatum Substances 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- CEGOLXSVJUTHNZ-UHFFFAOYSA-K aluminium tristearate Chemical compound [Al+3].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CEGOLXSVJUTHNZ-UHFFFAOYSA-K 0.000 description 1
- 229940063655 aluminum stearate Drugs 0.000 description 1
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- OIKBVOIOVNEVJR-UHFFFAOYSA-N hexadecyl 6-methylheptanoate Chemical compound CCCCCCCCCCCCCCCCOC(=O)CCCCC(C)C OIKBVOIOVNEVJR-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 229940119170 jojoba wax Drugs 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004200 microcrystalline wax Substances 0.000 description 1
- 235000019808 microcrystalline wax Nutrition 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- JXTPJDDICSTXJX-UHFFFAOYSA-N n-Triacontane Natural products CCCCCCCCCCCCCCCCCCCCCCCCCCCCCC JXTPJDDICSTXJX-UHFFFAOYSA-N 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 229940055577 oleyl alcohol Drugs 0.000 description 1
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- WCVRQHFDJLLWFE-UHFFFAOYSA-N pentane-1,2-diol Chemical compound CCCC(O)CO WCVRQHFDJLLWFE-UHFFFAOYSA-N 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 235000019271 petrolatum Nutrition 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229940032094 squalane Drugs 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Images
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- Cosmetics (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は、化粧料用の粉体及びそれを含有する化粧料に関する。
【0002】
【従来の技術】
メークアップ化粧料において、化粧効果と仕上がりの自然さの釣り合いを取ることは美しさを創出する上で重要な課題となっている。即ち、カバー力を追求したメークアップ化粧料においては、べったりした白さ、厚ぼったさが不自然な、能面のような印象を作るし、パール剤などによる過度の艶の付与は、不自然なてかりとなり、仕上がりに人工的なイメージが強く残ることを避けられない。この内、カバー力と自然さの課題については、チタンセリサイトに多層にシリカをコートした粉体及びWO99/49834で提案した鱗片状基材に屈折率の高いものから低いものへと順次積層被覆した粉体により、カバー力がありながら自然に見えるメークを具現化することに成功したが、艶の付与においてはこの様なバランシングは未解決と言わざるを得ない状況にあった。
【0003】
従来、メークアップ化粧料に於ける艶の付与は、チタンマイカの干渉パール様光沢によるものが多く、かかるチタンマイカのパール様光沢の不自然さを緩和するためには、チタンマイカに対して等量乃至は2倍量のシリカなどの半透明粉体を含有させることが必要であった。この様なシリカ類の大量の配合は、処方の自由度を大きく損なうばかりか、化粧動作時の感触低下にもつながり、処方設計上は好ましいものとは言い難かった。又、その効果も充分とは言えず、あえてこの様な危険を冒して処方組みすることもあまりやられていないのが現状であった。
【0004】
一方、この様な艶の自然さを持たせる技術にアルミナを用いることは全くなされていなかったし、チタンマイカの表面をアルミナ及びシリカでコートした化粧料用の粉体も全く知られていなかった。従って、化粧料において、チタンマイカの表面をアルミナ及びシリカで順次コートしたものが、自然な艶を付与するのに有用であることも全く知られていなかった。
【0005】
【発明が解決しようとする課題】
本発明は、この様な状況下為されたものであり、仕上がりの自然さを失わない艶を付与する化粧料用の粉体及び艶を付与する化粧料を提供することを課題とする。
【0006】
【課題の解決手段】
本発明者らは、この様な状況に鑑みて、仕上がりの自然さを失わない艶を付与する化粧料用の粉体及び艶を付与する化粧料を求めて、鋭意研究を重ねた結果、チタンマイカの表面をアルミナ及びシリカで順次コートしてなる、化粧料用の粉体が艶を付与しつつも自然さを失わない特性を有しており、このものを含有する化粧料に仕上がりの自然さを失わない艶を付与する作用を有することを見出し、発明を完成させるに至った。即ち、本発明は、以下に示す技術に関するものである。(1)酸化チタンのコート量が40〜48%であるチタンマイカの表面をアルミナ及びシリカで順次コートしてなる化粧料用の粉体で、チタンマイカのチタン量とアルミナコート量の比が、1:1〜15:1であることを特徴とする。更に20〜70度の任意の入射角に対する反射光の強度が反射角にして少なくとも10度の範囲内で、反射角によらず一定であることを特徴とする化粧料用粉体。(2)アルミナ及びシリカのコート量が、粉体全体に対して、10〜30重量%であることを特徴とする、(1)に記載の化粧料用の粉体。(3)(1)記載の化粧料用粉体が、シルバー色のパール光沢を有することを特徴とする(1)又は(2)記載の化粧料用粉体。(4)(1)〜(3)何れか1項に記載の化粧料用の粉体を含有する、化粧料。以下、本発明について更に詳細に説明を加える。
【0007】
(1)本発明の化粧料用の粉体
本発明の化粧料用の粉体は、チタンマイカの表面をアルミナ及びシリカで順次コートしてなることを特徴とする。この様な粉体は、チタンマイカ上に塩化アルミニウムなどを中和し水酸化アルミニウムを析出させ、しかる後、珪酸ナトリウムなどを中和しシリカゲルなどを析出させ、チタンマイカ上に水酸化アルミニウムとシリカのコート層を作成し、これを焼成することにより製造することができる。又、アルミナ、シリカゲルをメカノケミカルにコーティングし、焼成して結合固定して製造することもできる。かかるアルミナ・シリカコートチタンマイカに於ける、アルミナのコート量はチタンマイカの酸化チタンに対して、TiO2:Al2O3の重量比として1:1〜15:1であり、アルミナ或いはシリカのコートの形態としてはこれらの比が等量程度、具体的な数値としてはコートに於ける重量比として、1:2〜2:1が好ましく、2:3〜3:2が更に好ましい。又、アルミナ・シリカのコート量は粉体全量に対して10〜30重量%が好ましく、更に好ましくは15〜25重量%である。又、かかる粉体の粒子径は1〜100μmが好ましく、更に好ましくは5〜50μmである。本発明の化粧料用の粉体はそのまま化粧料に含有させることもできるし、ハイドロジェンメチルポリシロキサン処理、ジメチルポリシロキサン処理、シランカップリング処理、脂肪酸金属石けん処理、アシル化アミノ酸塩処理などの表面処理を施した後、化粧料に含有させることもできる。この様な表面処理された粉体も本発明の化粧料用の粉体の技術範囲に属する。本発明の化粧料用の粉体は艶を有しつつもてかり感を感じさせない。この様な特徴は光学的物性として、低角度での光に対して角度依存性の低い反射特性域を有することで表現される。かかる反射角に依存しない反射強度の安定域は、反射角にして10度以上存在する。この様に反射光の強度が反射角に依存しない部分が広く存在することにより、人工的なパール感を感じることを抑制できる。本発明の化粧料用の粉体を化粧料に含有させる場合、好ましい含有量は、1〜40重量%であり、更に好ましくは5〜25重量%である。これは、少なすぎると艶付与効果を発揮しない場合があり、多すぎると不自然さが出現する場合があるからである。
【0008】
(2)本発明の化粧料
本発明の化粧料は、上記本発明の粉体を含有することを特徴とする。本発明の化粧料は、上記本発明の化粧料用の粉体の効果により、艶を付与する作用に優れつつも、前記付与された艶により不自然な装いの印象を形成しない。この為、顔色の優れない人などが使用すると、輝くような明るい装いのメークとすることが出来、以て他人に対する印象形成を著しく向上することができる。本発明の化粧料としては、粉体を含有するものであれば特段の限定無く適用することができるが、メークアップ化粧料、取り分け、アンダーメークアップ化粧料、ファンデーション、フェースパウダー、プレストパウダーなどのベースメークアップ化粧料に適用されることが特に好ましい。本発明の化粧料は、上記本発明の化粧料用の粉体以外に、通常化粧料で使用される任意成分を含有することができる。この様な任意成分としては、例えば、ワセリンやマイクロクリスタリンワックス等のような炭化水素類、ホホバ油やセチルイソオクタネート等のエステル類、オリーブ油等のトリグリセライド類、オクタデシルアルコールやオレイルアルコール等の高級アルコール類、グリセリンや1,3−ブタンジオール、1,2−ペンタンジオール、イソプレングリコール、ジプロピレングリコール等の多価アルコール類、非イオン界面活性剤、アニオン界面活性剤、カチオン界面活性剤、両性界面活性剤、エタノール、カーボポール等の増粘剤、防腐剤、紫外線吸収剤、抗酸化剤類等が例示できる。これらの内、特に好ましい成分としては、隠蔽力があり、且つ、比較的厚ぼったさの少ない微粒子二酸化チタンである。更に好ましい形態としては、ステアリン酸アルミニウムなどの脂肪酸金属石けん1〜10重量%で表面を処理された微粒子二酸化チタンである。このものの含有量は、10〜40重量%が好ましい。本発明の化粧料は、これら必須の成分と任意の成分とを常法に従って処理することにより製造することができる。かくして得られた本発明の化粧料は自然な艶を付与する作用に優れる。
【0009】
【実施例】
以下に、実施例を挙げて、本発明について更に詳細に説明を加えるが、本発明がこれら実施例にのみ限定されないことは言うまでもない。
【0010】
<実施例1>
チタンマイカ(シルバー系、酸化チタン40%、平均粒径20μm)90gを500mLの水に分散させ、これを酸化アルミニウムとして10%濃度の塩化アルミニウム水溶液100g及び尿素70gを水280mLに溶かした水溶液の混合物に加え、良く混合した。これを90℃で5時間加熱し、その後室温まで冷却した。これをろ過水洗し、110℃で乾燥後更に600℃で5時間加熱し、チタンマイカに酸化アルミニウムをコートしたものをえた。これを90g計量し、エタノールと水の混合溶剤(7:3の比率)1Lに加えよく分散させた。これにシリカとして4重量%の正ケイ酸エチルを含むエタノール溶液250gを加えて、50℃に加熱し10時間保持した。これを冷却後ろ過し、エタノールで洗浄後、更に純水で十分洗浄し110℃で乾燥し、本発明の化粧料用粉体1を得た。このものは蛍光X線分析によれば、チタンマイカ上にシリカ10重量%とアルミナ9重量%がコートした粉体であることが明らかになった。このものでタブレットを作成し、入射角20度と40度でゴニオメーターを用い反射光の強度分布を調べた。これを図1、2に示す。これより本発明の化粧料用の粉体においては、20度でも、40度でも反射角に依存しない反射強度の安定域は、反射角にして10度以上存在することがわかる。更に、このものの表面の電子顕微鏡写真を図3に示す。これより、チタンマイカの表面上にシリカ、アルミナが一様にコートされていることが判る。又、このものを上腕内側上にパフで塗布し、艶の変化を調べた。艶の変化は、艶の強さをスコア5:非常に艶を感じる、スコア4:艶を感じる、スコア3:艶が増した、スコア2:艶は塗布前と変わらない、スコア1:塗布前より艶が少なくなったの基準に従って、艶の自然さをスコア5:極めて自然な艶、スコア4:自然な艶、スコア3:やや不自然な艶、スコア2:不自然な艶、スコア1:人工的な艶(てかり)の基準で評価した。同時に、チタンマイカのみ(対照例1)、シリカとアルミナの等量混合物(対照例2)、チタンマイカ80重量部、アルミナ(不定形、粒子径0.3μm)10重量部、シリカ(不定形、粒子径0.3μm)10重量部の混合物(比較例1)も同様に評価した。結果を表1に示す。これより、本発明の粉体は、自然な艶を付与する作用に優れることが判る。
【0011】
【表1】
【0012】
<実施例2>
チタンマイカ(シルバー系、酸化チタン40%、平均粒径20μm)85gを500mLの水に分散させ、これを酸化アルミニウムとして10%濃度の塩化アルミニウム水溶液150g及び尿素105gを水420mLに溶かした水溶液の混合物に加え、良く混合した。これを90℃で5時間加熱し、その後室温まで冷却した。これをろ過水洗し、110℃で乾燥後更に600℃で5時間加熱し、チタンマイカに酸化アルミニウムをコートしたものをえた。これを93g計量し、エタノールと水の混合溶剤(7:3の比率)1Lに加えよく分散させた。これにシリカとして4重量%の正ケイ酸エチルを含むエタノール溶液175gを加えて、50℃に加熱し10時間保持した。これを冷却後ろ過し、エタノールで洗浄後、更に純水で十分洗浄し110℃で乾燥し、本発明の化粧料用粉体2を得た。蛍光X線分析の結果、この粉体はチタンマイカ79重量部に14重量部のアルミナと7重量部のシリカがコートした形態であることが判った。
【0013】
<実施例3>
チタンマイカ(レッド系、酸化チタン48%、平均粒径18μm)96.5gを500mLの水に分散させ、これを酸化アルミニウムとして10%濃度の塩化アルミニウム水溶液35g及び尿素24.5gを水98mLに溶かした水溶液の混合物に加え、良く混合した。これを90℃で5時間加熱し、その後室温まで冷却した。これをろ過水洗し、110℃で乾燥後更に600℃で5時間加熱し、チタンマイカに酸化アルミニウムをコートしたものをえた。これを85g計量し、エタノールと水の混合溶剤(7:3の比率)1Lに加えよく分散させた。これにシリカとして4重量%の正ケイ酸エチルを含むエタノール溶液375gを加えて、50℃に加熱し10時間保持した。これを冷却後ろ過し、エタノールで洗浄後、更に純水で十分洗浄し110℃で乾燥し、本発明の化粧料用粉体3を得た。蛍光X線分析の結果、この粉体はチタンマイカ82重量部に3重量部のアルミナと15重量部のシリカがコートした形態であることが判った。ここで使用したチタンマイカ(レッド系、酸化チタン48%、平均粒径20μm)を比較例2として評価した。
【0014】
<比較例3>
チタンマイカ(シルバー系、酸化チタン40%、平均粒径20μm)85gを500mLの水に分散させ、これを酸化アルミニウムとして10%濃度の塩化アルミニウム水溶液150g及び尿素105gを水420mLに溶かした水溶液の混合物に加え、良く混合した。これを90℃で5時間加熱し、その後室温まで冷却した。これをろ過水洗し、110℃で乾燥後更に600℃で5時間加熱し、チタンマイカに酸化アルミニウムをコートした比較例3の粉体を得た。
【0015】
<比較例4>
チタンマイカ(シルバー系、酸化チタン40%、平均粒径20μm)を85g計量し、エタノールと水の混合溶剤(7:3の比率)1Lに加えよく分散させた。これにシリカとして4重量%の正ケイ酸エチルを含むエタノール溶液375gを加えて、50℃に加熱し10時間保持した。これを冷却後ろ過し、エタノールで洗浄後、更に純水で十分洗浄し110℃で乾燥し、比較例4の粉体を得た。
【0016】
<実施例4>
チタンマイカ(ブルー系、酸化チタン42%、平均粒径25μm)80.7gを500mLの水に分散させ、これを酸化アルミニウムとして10%濃度の塩化アルミニウム水溶液193g及び尿素135.1gを水540mLに溶かした水溶液の混合物に加え、良く混合した。これを90℃で5時間加熱し、その後室温まで冷却した。これをろ過水洗し、110℃で乾燥後更に600℃で5時間加熱し、チタンマイカに酸化アルミニウムをコートしたものをえた。これを88g計量し、エタノールと水の混合溶剤(7:3の比率)1Lに加えよく分散させた。これにシリカとして4重量%の正ケイ酸エチルを含むエタノール溶液300gを加えて、50℃に加熱し10時間保持した。これを冷却後ろ過し、エタノールで洗浄後、更に純水で十分洗浄し110℃で乾燥し、本発明の化粧料用粉体3を得た。蛍光X線分析の結果、この粉体はチタンマイカ71重量部に17重量部のアルミナと12重量部のシリカがコートした形態であることが判った。
【0017】
<実施例5>
実施例1〜3の粉体、比較例2、3の粉体を実施例1と同様に艶の変化を指標に評価した。結果を表2に示す。これより、本発明の化粧料用の粉体は優れた艶特性を有すること、及び、酸化チタンとアルミナのコートに於ける重量比として、1:1〜15:1が好ましく、アルミナ及びシリカのコート量は、粉体全体に対して、10〜30重量%が好ましいことがわかる。
【0018】
【表2】
【0019】
<比較例5>
実施例4で使用したチタンマイカ(ブルー系、酸化チタン42%、平均粒径25μm)は実施例5の評価で、艶強度5、艶の自然さが1であった。
【0020】
<実施例6>
チタンマイカ(シルバー系、酸化チタン40%、平均粒径20μm)96.5gを500mLの水に分散させ、これを酸化アルミニウムとして10%濃度の塩化アルミニウム水溶液35g及び尿素24.5gを水98mLに溶かした水溶液の混合物に加え、良く混合した。これを90℃で5時間加熱し、その後室温まで冷却した。これをろ過水洗し、110℃で乾燥後更に600℃で5時間加熱し、チタンマイカに酸化アルミニウムをコートしたものをえた。これを90g計量し、エタノールと水の混合溶剤(7:3の比率)1Lに加えよく分散させた。これにシリカとして4重量%の正ケイ酸エチルを含むエタノール溶液250gを加えて、50℃に加熱し10時間保持した。これを冷却後ろ過し、エタノールで洗浄後、更に純水で十分洗浄し110℃で乾燥し、本発明の化粧料用粉体5を得た。蛍光X線分析の結果、この粉体はチタンマイカ87重量部に3重量部のアルミナと10重量部のシリカがコートした形態であることが判った。このものは実施例5の評価で、艶強度が5、艶の自然さが3であった。
【0021】
<比較例6>
チタンマイカ(シルバー系、酸化チタン40%、平均粒径20μm)96.5gを500mLの水に分散させ、これを酸化アルミニウムとして10%濃度の塩化アルミニウム水溶液35g及び尿素24.5gを水98mLに溶かした水溶液の混合物に加え、良く混合した。これを90℃で5時間加熱し、その後室温まで冷却した。これをろ過水洗し、110℃で乾燥後更に600℃で5時間加熱し、チタンマイカに酸化アルミニウムをコートしたものをえた。これを90g計量し、エタノールと水の混合溶剤(7:3の比率)1Lに加えよく分散させた。これにシリカとして4重量%の正ケイ酸エチルを含むエタノール溶液125gを加えて、50℃に加熱し10時間保持した。これを冷却後ろ過し、エタノールで洗浄後、更に純水で十分洗浄し110℃で乾燥し、本発明の化粧料例6の粉体を得た。蛍光X線分析の結果、この粉体はチタンマイカ91.7重量部に3.3重量部のアルミナと5重量部のシリカがコートした形態であることが判った。このものは実施例5の評価で、艶強度が5、艶の自然さが2であった。
【0022】
<実施例7>
実施例1の本発明の化粧料用の粉体1を97重量部はかり、これに20重量部のジクロロメタンに溶解した、3重量部のハイドロジェンメチルポリシロキサンをヘンシェル中で攪拌しながら噴霧し、コートした。2時間室温で送風乾燥し、200℃で10時間焼き付け、本発明の化粧料用の粉体6を得た。このものは本発明の化粧料用の粉体1と同程度の光学特性を有していた。
【0023】
<実施例8>
チタンマイカ80重量部、シリカ10重量部、アルミナ10重量部に100重量部の水を加え、遊星ボールミルで10時間攪拌し、600℃で焼成し、本発明の化粧料用の粉体7を得た。このものは本発明の化粧料用の粉体1には劣るものの、同様の効果を有していた。
【0024】
<実施例9>
下記に示す処方に従って、本発明の化粧料を作成した。即ち、イの成分をヘンシェルミキサーで混合した後、0.9mm丸穴スクリーンを装着したパルベライザーで粉砕し、ヘンシェルミキサーで混合しながらロの成分をコートして0.1mmヘリングボーンスクリーンを装着したパルベラーザーで粉砕し、金皿に充填し、加圧成形してファンデーションを得た。ファンデーションについて、その仕上がりの艶を専門パネラーを用いて、次に示す基準で官能評価した。即ち、基準とは、艶の強さについては、スコア5:非常に艶を感じる、スコア4:艶を感じる、スコア3:艶は普通、スコア2:艶がやや足りない、スコア1:艶が足りないの基準であり、艶の自然さについては、スコア5:極めて自然な艶、スコア4:自然な艶、スコア3:やや不自然な艶、スコア2:不自然な艶、スコア1:人工的な艶(てかり)の基準であった。結果を表3に示す。本発明の化粧料は何れも艶特性に優れており、これは本発明の化粧料用の粉体の特性によるものであることが判る。
イ
本発明の化粧料用の粉体* 30 重量部
二酸化チタン 20 重量部
酸化鉄 10 重量部
セリサイト 20 重量部
ロ
ジメチコン(100mPascal/sec) 10 重量部
スクワラン 9 重量部
ジメチルアミノ安息香酸−2−エチルへキシル 1 重量部
*表3に詳細を記す。
【0025】
【表3】
【0026】
【発明の効果】
本発明によれば、仕上がりの自然さを失わない艶を付与する化粧料用の粉体及び艶を付与する化粧料を提供することができる。
【図面の簡単な説明】
【図1】 実施例1のゴニオメーターの測定結果を示す図である。
【図2】 実施例1のゴニオメーターの測定結果を示す図である。
【図3】 実施例1の粉体の顕微鏡写真である。(図面代用写真)[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a powder for cosmetics and a cosmetic containing the same.
[0002]
[Prior art]
In makeup cosmetics, balancing the makeup effect and the naturalness of the finish is an important issue in creating beauty. In other words, in makeup cosmetics that pursue cover power, the whiteness and thickness of the skin is unnatural and creates an impression of Noh mask. It is inevitable that an artificial image remains strong in the finish. Among these, as for the problem of covering power and naturalness, the powder coated with multiple layers of silica on titanium sericite and the scaly substrate proposed in WO99 / 49834 are sequentially laminated and coated from a high refractive index to a low refractive index. Although it was successful to realize a make-up that looked natural with the covering power, such balancing was inevitable in providing gloss.
[0003]
Conventionally, the glossiness in makeup cosmetics is mostly due to interference pearly luster of titanium mica. To alleviate the unnaturalness of pearly luster of titanium mica, etc. It was necessary to contain a translucent powder such as silica in an amount or twice the amount. Such a large amount of blending of silicas not only greatly impairs the degree of freedom of formulation, but also leads to a decrease in feel during makeup operation, which is not preferable in terms of formulation design. In addition, the effect is not sufficient, and the current situation is that it has not been done so much by taking such a risk.
[0004]
On the other hand, alumina has never been used for such a glossy technology, and no powder for cosmetics in which the surface of titanium mica is coated with alumina and silica has been known. . Accordingly, it has not been known at all that cosmetics in which the surface of titanium mica is sequentially coated with alumina and silica are useful for imparting natural luster.
[0005]
[Problems to be solved by the invention]
The present invention has been made under such circumstances, and an object of the present invention is to provide a cosmetic powder that imparts gloss without losing the natural finish and a cosmetic that imparts gloss.
[0006]
[Means for solving problems]
In light of such circumstances, the present inventors have sought for powders for cosmetics that impart luster that does not lose the natural finish and cosmetics that impart luster. The surface of mica is coated with alumina and silica in succession, and the powder for cosmetics has a characteristic that does not lose its naturalness while giving luster. It has been found that it has an effect of imparting gloss without losing its thickness, and has come to complete the invention. That is, this invention relates to the technique shown below. (1) A powder for cosmetics in which the surface of titanium mica whose titanium oxide coating amount is 40 to 48% is sequentially coated with alumina and silica, and the ratio of the titanium amount of titanium mica to the alumina coating amount is The ratio is 1: 1 to 15: 1. Furthermore, the powder for cosmetics, wherein the intensity of reflected light with respect to an arbitrary incident angle of 20 to 70 degrees is constant within a range of at least 10 degrees as a reflection angle, regardless of the reflection angle . (2) The powder for cosmetics according to (1), wherein the coating amount of alumina and silica is 10 to 30% by weight based on the whole powder. (3) The cosmetic powder according to (1) or (2), wherein the cosmetic powder according to (1) has a silver pearl luster. (4) A cosmetic comprising the cosmetic powder according to any one of (1) to (3). Hereinafter, the present invention will be described in more detail.
[0007]
(1) Powder for Cosmetics of the Present Invention The powder for cosmetics of the present invention is characterized in that the surface of titanium mica is sequentially coated with alumina and silica. Such powders neutralize aluminum chloride and the like on titanium mica to precipitate aluminum hydroxide, and then neutralize sodium silicate and the like to precipitate silica gel and the like. The coating layer can be prepared and fired. Also, it can be produced by coating alumina and silica gel on mechanochemical, firing and bonding and fixing. In the alumina / silica coated titanium mica, the alumina coating amount is 1: 1 to 15: 1 as a weight ratio of TiO2: Al2O3 to titanium oxide of titanium mica. These ratios are about the same, and specific numerical values are preferably 1: 2 to 2: 1, and more preferably 2: 3 to 3: 2, as the weight ratio in the coat. The coating amount of alumina / silica is preferably 10 to 30% by weight, more preferably 15 to 25% by weight, based on the total amount of the powder. Further, the particle diameter of such powder is preferably 1 to 100 μm, more preferably 5 to 50 μm. The cosmetic powder of the present invention can be directly contained in cosmetics, such as hydrogen methylpolysiloxane treatment, dimethylpolysiloxane treatment, silane coupling treatment, fatty acid metal soap treatment, acylated amino acid salt treatment, etc. After surface treatment, it can also be contained in cosmetics. Such a surface-treated powder also belongs to the technical scope of the cosmetic powder of the present invention. The powder for cosmetics of the present invention has gloss and does not give a feeling of hospitality. Such a characteristic is expressed by having a reflection characteristic region having low angle dependency with respect to light at a low angle as an optical physical property. The stable range of the reflection intensity that does not depend on the reflection angle is 10 degrees or more in terms of the reflection angle. As described above, since there is a portion where the intensity of the reflected light does not depend on the reflection angle , it is possible to suppress the feeling of artificial pearl. When the cosmetic powder of the present invention is contained in a cosmetic, the preferred content is 1 to 40% by weight, more preferably 5 to 25% by weight. This is because if the amount is too small, the gloss imparting effect may not be exhibited, and if the amount is too large, unnaturalness may appear.
[0008]
(2) Cosmetics of the present invention The cosmetics of the present invention are characterized by containing the powder of the present invention. The cosmetic of the present invention is excellent in the effect of imparting gloss due to the effect of the powder for cosmetics of the present invention, but does not form an unnatural impression due to the imparted gloss. For this reason, when a person with poor facial color or the like is used, it is possible to make a make-up that is bright and shine, thereby significantly improving impression formation for others. The cosmetics of the present invention can be applied without particular limitation as long as they contain powder, but make-up cosmetics, in particular, under-makeup cosmetics, foundations, face powders, pressed powders, etc. It is particularly preferred to be applied to a base makeup cosmetic. The cosmetics of this invention can contain the arbitrary components normally used with cosmetics other than the powder for cosmetics of the said invention. Examples of such optional components include hydrocarbons such as petrolatum and microcrystalline wax, esters such as jojoba oil and cetyl isooctanoate, triglycerides such as olive oil, and higher alcohols such as octadecyl alcohol and oleyl alcohol. , Polyhydric alcohols such as glycerin, 1,3-butanediol, 1,2-pentanediol, isoprene glycol, dipropylene glycol, nonionic surfactant, anionic surfactant, cationic surfactant, amphoteric surfactant Examples thereof include thickeners such as agents, ethanol and carbopol, preservatives, ultraviolet absorbers, antioxidants and the like. Among these, a particularly preferable component is fine particle titanium dioxide having a hiding power and having a relatively small thickness. A more preferable form is fine particle titanium dioxide whose surface is treated with 1 to 10% by weight of a fatty acid metal soap such as aluminum stearate. The content of this is preferably 10 to 40% by weight. The cosmetic of the present invention can be produced by treating these essential components and optional components according to a conventional method. The cosmetic of the present invention thus obtained is excellent in the action of imparting natural luster.
[0009]
【Example】
Hereinafter, the present invention will be described in more detail with reference to examples, but it goes without saying that the present invention is not limited only to these examples.
[0010]
<Example 1>
A mixture of an aqueous solution in which 90 g of titanium mica (silver-based, titanium oxide 40%, average particle size 20 μm) is dispersed in 500 mL of water, and this is converted into aluminum oxide, 100 g of 10% strength aluminum chloride aqueous solution and 70 g of urea dissolved in 280 mL of water. And mixed well. This was heated at 90 ° C. for 5 hours and then cooled to room temperature. This was washed with filtered water, dried at 110 ° C. and further heated at 600 ° C. for 5 hours to obtain titanium mica coated with aluminum oxide. 90 g of this was weighed and added to 1 L of a mixed solvent of ethanol and water (ratio of 7: 3) and well dispersed. To this, 250 g of an ethanol solution containing 4% by weight of ethyl silicate as silica was added, heated to 50 ° C. and held for 10 hours. This was cooled, filtered, washed with ethanol, further thoroughly washed with pure water and dried at 110 ° C. to obtain a cosmetic powder 1 of the present invention. According to X-ray fluorescence analysis, it was revealed that the powder was a titanium mica coated with 10 wt% silica and 9 wt% alumina. A tablet was prepared from this, and the intensity distribution of reflected light was examined using a goniometer at incident angles of 20 and 40 degrees. This is shown in FIGS. From this, it can be seen that in the powder for cosmetics of the present invention, there is a reflection intensity stable region that is not dependent on the reflection angle at 20 degrees or 40 degrees in terms of the reflection angle. Furthermore, the electron micrograph of the surface of this thing is shown in FIG. From this, it can be seen that silica and alumina are uniformly coated on the surface of titanium mica. In addition, this was applied to the inner side of the upper arm with a puff, and the change in gloss was examined. Change in gloss is the strength of gloss. Score 5: Very glossy, Score 4: Feeling gloss, Score 3: Increased gloss, Score 2: Gloss is the same as before application, Score 1: Before application According to the criteria of less gloss, the naturalness of the gloss is scored 5: very natural gloss, score 4: natural gloss, score 3: somewhat unnatural gloss, score 2: unnatural gloss, score 1: Evaluation was made based on artificial luster. At the same time, only titanium mica (Control 1), equal mixture of silica and alumina (Control 2), 80 parts by weight of titanium mica, 10 parts by weight of alumina (indefinite shape, particle size 0.3 μm), silica (indefinite form, A mixture (Comparative Example 1) having a particle size of 0.3 μm and 10 parts by weight was also evaluated in the same manner. The results are shown in Table 1. From this, it can be seen that the powder of the present invention is excellent in the action of imparting natural luster.
[0011]
[Table 1]
[0012]
<Example 2>
A mixture of an aqueous solution in which 85 g of titanium mica (silver-based, titanium oxide 40%, average particle size 20 μm) is dispersed in 500 mL of water and 150 g of 10% strength aluminum chloride aqueous solution and 105 g of urea are dissolved in 420 mL of water as aluminum oxide. And mixed well. This was heated at 90 ° C. for 5 hours and then cooled to room temperature. This was washed with filtered water, dried at 110 ° C. and further heated at 600 ° C. for 5 hours to obtain titanium mica coated with aluminum oxide. 93 g of this was weighed and added to 1 L of a mixed solvent of ethanol and water (ratio of 7: 3) and well dispersed. To this was added 175 g of an ethanol solution containing 4% by weight of ethyl orthosilicate as silica, heated to 50 ° C. and held for 10 hours. This was cooled, filtered, washed with ethanol, further thoroughly washed with pure water, and dried at 110 ° C. to obtain a cosmetic powder 2 of the present invention. As a result of X-ray fluorescence analysis, it was found that this powder was in a form in which 79 parts by weight of titanium mica was coated with 14 parts by weight of alumina and 7 parts by weight of silica.
[0013]
<Example 3>
Disperse 96.5 g of titanium mica (red, 48% titanium oxide, average particle size 18 μm) in 500 mL of water, dissolve this as aluminum oxide in 35 g of 10% aqueous aluminum chloride solution and 24.5 g of urea in 98 mL of water. And mixed well. This was heated at 90 ° C. for 5 hours and then cooled to room temperature. This was washed with filtered water, dried at 110 ° C. and further heated at 600 ° C. for 5 hours to obtain titanium mica coated with aluminum oxide. 85 g of this was weighed and added to 1 L of a mixed solvent of ethanol and water (ratio of 7: 3) and well dispersed. To this was added 375 g of an ethanol solution containing 4% by weight of ethyl silicate as silica, heated to 50 ° C. and held for 10 hours. This was cooled and then filtered, washed with ethanol, sufficiently washed with pure water, and dried at 110 ° C. to obtain a cosmetic powder 3 of the present invention. As a result of fluorescent X-ray analysis, this powder was found to be in a form in which 82 parts by weight of titanium mica was coated with 3 parts by weight of alumina and 15 parts by weight of silica. Titanium mica (red type, titanium oxide 48%, average particle size 20 μm) used here was evaluated as Comparative Example 2.
[0014]
<Comparative Example 3>
A mixture of an aqueous solution in which 85 g of titanium mica (silver-based, titanium oxide 40%, average particle size 20 μm) is dispersed in 500 mL of water and 150 g of 10% strength aluminum chloride aqueous solution and 105 g of urea are dissolved in 420 mL of water as aluminum oxide. And mixed well. This was heated at 90 ° C. for 5 hours and then cooled to room temperature. This was washed with filtered water, dried at 110 ° C. and further heated at 600 ° C. for 5 hours to obtain a powder of Comparative Example 3 in which titanium mica was coated with aluminum oxide.
[0015]
<Comparative example 4>
85 g of titanium mica (silver type, titanium oxide 40%, average particle size 20 μm) was weighed and added to 1 L of a mixed solvent of ethanol and water (ratio of 7: 3) and well dispersed. To this was added 375 g of an ethanol solution containing 4% by weight of ethyl silicate as silica, heated to 50 ° C. and held for 10 hours. This was cooled, filtered, washed with ethanol, further thoroughly washed with pure water, and dried at 110 ° C. to obtain a powder of Comparative Example 4 .
[0016]
<Example 4>
Disperse 80.7 g of titanium mica (blue, titanium oxide 42%,
[0017]
<Example 5>
The powders of Examples 1 to 3 and the powders of Comparative Examples 2 and 3 were evaluated in the same manner as in Example 1 using the change in gloss as an index. The results are shown in Table 2. From this, the powder for cosmetics of the present invention has excellent gloss characteristics, and the weight ratio in the coating of titanium oxide and alumina is preferably 1: 1 to 15: 1. It can be seen that the coating amount is preferably 10 to 30% by weight with respect to the whole powder.
[0018]
[Table 2]
[0019]
<Comparative Example 5>
The titanium mica (blue series, titanium oxide 42%,
[0020]
<Example 6>
Disperse 96.5 g of titanium mica (silver, titanium oxide 40%, average particle size 20 μm) in 500 mL of water, dissolve this as aluminum oxide, 35 g of 10% strength aluminum chloride aqueous solution and 24.5 g of urea in 98 mL of water. And mixed well. This was heated at 90 ° C. for 5 hours and then cooled to room temperature. This was washed with filtered water, dried at 110 ° C. and further heated at 600 ° C. for 5 hours to obtain titanium mica coated with aluminum oxide. 90 g of this was weighed and added to 1 L of a mixed solvent of ethanol and water (ratio of 7: 3) and well dispersed. To this, 250 g of an ethanol solution containing 4% by weight of ethyl silicate as silica was added, heated to 50 ° C. and held for 10 hours. This was cooled, filtered, washed with ethanol, further thoroughly washed with pure water, and dried at 110 ° C. to obtain a cosmetic powder 5 of the present invention. As a result of X-ray fluorescence analysis, it was found that this powder was in a form in which 87 parts by weight of titanium mica was coated with 3 parts by weight of alumina and 10 parts by weight of silica. In the evaluation of Example 5, the gloss strength was 5 and the glossiness was 3.
[0021]
<Comparative Example 6>
Disperse 96.5 g of titanium mica (silver, titanium oxide 40%, average particle size 20 μm) in 500 mL of water, dissolve this as aluminum oxide, 35 g of 10% strength aluminum chloride aqueous solution and 24.5 g of urea in 98 mL of water. And mixed well. This was heated at 90 ° C. for 5 hours and then cooled to room temperature. This was washed with filtered water, dried at 110 ° C. and further heated at 600 ° C. for 5 hours to obtain titanium mica coated with aluminum oxide. 90 g of this was weighed and added to 1 L of a mixed solvent of ethanol and water (ratio of 7: 3) and well dispersed. To this was added 125 g of an ethanol solution containing 4 wt% ethyl orthosilicate as silica, heated to 50 ° C. and held for 10 hours. This was cooled, filtered, washed with ethanol, further thoroughly washed with pure water, and dried at 110 ° C. to obtain a powder of Cosmetic Example 6 of the present invention. As a result of X-ray fluorescence analysis, it was found that the powder was in a form in which 91.7 parts by weight of titanium mica was coated with 3.3 parts by weight of alumina and 5 parts by weight of silica. In the evaluation of Example 5, the gloss strength was 5 and the glossiness was 2.
[0022]
<Example 7>
97 parts by weight of the cosmetic powder 1 of the present invention of Example 1 was weighed, and 3 parts by weight of hydrogenmethylpolysiloxane dissolved in 20 parts by weight of dichloromethane was sprayed with stirring in Henschel, Coated. It was blown and dried at room temperature for 2 hours and baked at 200 ° C. for 10 hours to obtain a powder 6 for cosmetics of the present invention. This had the same optical properties as the cosmetic powder 1 of the present invention.
[0023]
<Example 8>
100 parts by weight of water is added to 80 parts by weight of titanium mica, 10 parts by weight of silica, and 10 parts by weight of alumina, and the mixture is stirred for 10 hours in a planetary ball mill and baked at 600 ° C. to obtain the powder 7 for cosmetics of the present invention. It was. Although this was inferior to the powder 1 for cosmetics of this invention, it had the same effect.
[0024]
<Example 9>
The cosmetic of the present invention was prepared according to the formulation shown below. That is, after mixing the components of b in a Henschel mixer, and triturated with a pulverizer equipped with a 0.9mm round hole screen, equipped with a 0.1mm herringbone screen coated with components b while mixing with a Henschel mixer A foundation was obtained by pulverizing with a pulverizer, filling in a metal pan, and press molding. About the foundation, the gloss of the finish was sensory-evaluated with the following reference | standard using the specialized panelist. That is, the reference and is, for the strength of the gloss, a score of 5: I feel very gloss, score 4: feel the gloss, score 3: gloss is usually, score 2: gloss is not a little short, the score 1: gloss As for the naturalness of gloss, score 5: extremely natural gloss, score 4: natural gloss, score 3: slightly unnatural gloss, score 2: unnatural gloss, score 1: It was the standard for artificial luster. The results are shown in Table 3. It can be seen that the cosmetics of the present invention are all excellent in gloss properties, and this is due to the characteristics of the powder for cosmetics of the present invention.
Powder for cosmetics of the present invention * 30 parts by weight Titanium dioxide 20 parts by weight Iron oxide 10 parts by weight Sericite 20 parts by weight Logimethicone (100 mPascal / sec) 10 parts by weight squalane 9 parts by weight dimethylaminobenzoic acid-2- Ethylhexyl 1 part by weight * Details are given in Table 3.
[0025]
[Table 3]
[0026]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, the powder for cosmetics which provides the gloss which does not lose the naturalness of a finish, and the cosmetics which provide a gloss can be provided.
[Brief description of the drawings]
FIG. 1 is a graph showing measurement results of a goniometer of Example 1. FIG.
FIG. 2 is a graph showing measurement results of the goniometer of Example 1.
3 is a photomicrograph of the powder of Example 1. FIG. (Drawing substitute photo)
Claims (4)
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EP2987834A1 (en) * | 2014-08-18 | 2016-02-24 | Kronos International, Inc. | Method for coating the surface of inorganic particles with silicon dioxide and at least one other inorganic compound |
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