JP5782256B2 - Powder cosmetics - Google Patents
Powder cosmetics Download PDFInfo
- Publication number
- JP5782256B2 JP5782256B2 JP2010292449A JP2010292449A JP5782256B2 JP 5782256 B2 JP5782256 B2 JP 5782256B2 JP 2010292449 A JP2010292449 A JP 2010292449A JP 2010292449 A JP2010292449 A JP 2010292449A JP 5782256 B2 JP5782256 B2 JP 5782256B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- mass
- metal oxide
- primary particle
- cosmetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000843 powder Substances 0.000 title claims description 75
- 239000002537 cosmetic Substances 0.000 title claims description 36
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 20
- 150000004706 metal oxides Chemical class 0.000 claims description 20
- 229910044991 metal oxide Inorganic materials 0.000 claims description 16
- 239000011164 primary particle Substances 0.000 claims description 14
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 12
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 12
- 239000011787 zinc oxide Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 6
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 230000000694 effects Effects 0.000 description 21
- 239000011347 resin Substances 0.000 description 16
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- 239000010419 fine particle Substances 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 9
- -1 fatty acid salt Chemical class 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
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Landscapes
- Cosmetics (AREA)
Description
本発明は、粉末化粧料に関する。 The present invention relates to a powder cosmetic.
平均一次粒径が100nm以上の金属酸化物粉体は一般に顔料級と呼ばれ、可視光を効果的に散乱するように設計されている。これを配合することで、粉末化粧料は強い隠ぺい力を持つことができ、メイクアップ化粧料としてのカバー効果が得られる。これに対し、100nm未満の金属酸化物粉体は一般に微粒子と呼ばれ、可視光よりも短い波長である紫外線を散乱するのに有効な設計となっており、化粧料に紫外線防御効果を持たせるために使用される。この微粒子と呼ばれる金属酸化物は、可視光に対する散乱能は低いため、透明感の高い自然な明るさをもつ仕上がりを粉末化粧料に付与することは可能なものの、充分なカバー効果は期待できない。 A metal oxide powder having an average primary particle size of 100 nm or more is generally called a pigment class and is designed to effectively scatter visible light. By blending this, the powder cosmetic can have a strong hiding power, and a cover effect as a makeup cosmetic can be obtained. On the other hand, metal oxide powders of less than 100 nm are generally called fine particles, and are designed to scatter ultraviolet rays having a wavelength shorter than visible light, and give cosmetics an ultraviolet protection effect. Used for. Since the metal oxides called fine particles have a low scattering ability for visible light, it is possible to give the powder cosmetics a highly transparent finish with natural brightness, but a sufficient covering effect cannot be expected.
パウダーファンデーションの処方設計を行なうには、顔料級と微粒子の金属酸化物粉体をバランス良く配合することで、カバー効果と紫外線散乱能の両立を図る必要がある。ここで、消費者の求めるカバー効果を出すためには、顔料級の金属酸化物を一定量以上配合することが必須であるが、顔料級の金属酸化物によって得られるカバー効果は肌の質感とは全く異なるものであり、自然な仕上がりとはなり得ない。それに対し、微粒子の金属酸化物のみを用いると透明感の高い自然な明るさを得ることはできるが、充分なカバー効果は得られない。また、そのカバー効果の低さを補うために微粒子金属酸化物を多く配合すると、肌への付着性の高さからくる軋みなどの感触悪化に繋がる。 In order to design the formulation of the powder foundation, it is necessary to achieve both the cover effect and the ultraviolet light scattering ability by blending the pigment grade and the fine metal oxide powder in a balanced manner. Here, in order to obtain the cover effect demanded by consumers, it is essential to add a certain amount or more of pigment-grade metal oxide. Are completely different and cannot have a natural finish. On the other hand, when only a fine metal oxide is used, a natural brightness with a high transparency can be obtained, but a sufficient cover effect cannot be obtained. In addition, when a large amount of fine metal oxide is added to compensate for the low cover effect, it leads to deterioration in touch such as itchiness due to high adhesion to the skin.
一方、球状弾性樹脂粉体は光を粉体内部に引き込み易く、また適度な散乱効果も併せ持つことから、肌の色ムラや凹凸をぼかすフォギー効果を得るために使用される(特許文献1)。 On the other hand, since the spherical elastic resin powder easily draws light into the powder and also has an appropriate scattering effect, it is used to obtain a foggy effect that blurs skin color unevenness and unevenness (Patent Document 1).
しかし、球状弾性樹脂粉末を配合した粉末化粧料は、化粧仕上りに明るさが無く、また多量に配合すると肌に対する付着性が低下してしまい、化粧時の満足感が得難いという問題があった。 However, the powder cosmetic containing the spherical elastic resin powder has a problem that the makeup finish is not bright, and when it is added in a large amount, the adhesion to the skin is lowered, and it is difficult to obtain satisfaction during makeup.
従って、本発明は、顔料級金属酸化物粉体による強い隠蔽力が無い透明感のある仕上がりながらも、肌の色ムラや凹凸をカバーすることのでき、さらに使用感に優れる粉末化粧料を提供することを課題とする。 Therefore, the present invention provides a powder cosmetic that can cover uneven skin color and unevenness while having a clear finish without strong hiding power due to the pigment-grade metal oxide powder, and that is excellent in use feeling. The task is to do.
本発明者等は、上記事情に鑑み、如何にして自然な仕上がりと充分なカバー効果を両立するかを考え、鋭意研究を重ねた結果、微粒子酸化チタン及び/又は微粒子酸化亜鉛を10〜30質量%配合し、かつ球状弾性樹脂粉体を10質量%以上配合することで、顔料級金属酸化物粉体の配合量が低くとも充分なカバー効果が得られ、かつ自然な仕上りの化粧料を実現するに至った。さらに、このとき、微粒子金属酸化物の高配合による過度の付着性(軋み)と、球状樹脂粉体の高配合による付着性の低さが相殺され、優れた感触が得られることを見出した。 In view of the above circumstances, the present inventors considered how to achieve both a natural finish and a sufficient cover effect, and as a result of intensive research, 10-30 masses of fine particle titanium oxide and / or fine particle zinc oxide were obtained. %, And 10% by mass or more of the spherical elastic resin powder, a sufficient covering effect can be obtained even if the amount of the pigment-grade metal oxide powder is low, and a natural finish cosmetic is realized. It came to do. Furthermore, at this time, it has been found that the excessive adhesion (stagnation) due to the high blending of the fine particle metal oxide is offset by the low adhesion due to the high blending of the spherical resin powder, and an excellent feel can be obtained.
即ち、本発明は、(a)平均一次粒径が100nm未満の酸化チタン及び/又は酸化亜鉛を合計で10〜30質量%、(b)球状弾性樹脂粉体を10〜50質量%、並びに(c)平均一次粒径が100nm以上の金属酸化物粉体を0〜5質量%含有する粉末化粧料を提供するものである。 That is, the present invention comprises (a) 10 to 30% by mass of titanium oxide and / or zinc oxide having an average primary particle size of less than 100 nm, (b) 10 to 50% by mass of spherical elastic resin powder, and ( c) A powder cosmetic containing 0 to 5% by mass of a metal oxide powder having an average primary particle size of 100 nm or more is provided.
本発明により、顔料級の金属酸化物粉体の配合量が低くとも充分なカバー効果が得られ、かつ自然な仕上りで使用感にも優れる粉末化粧料を提供することができる。 According to the present invention, it is possible to provide a powder cosmetic that can provide a sufficient cover effect even if the blending amount of the pigment-grade metal oxide powder is low, and has a natural finish and excellent usability.
以下、本発明の実施の形態を詳述する。
本発明で用いられる(a)酸化チタン及び酸化亜鉛は、平均一次粒径が100nm未満であれば、特に限定されるものではなく、一般に微粒子酸化チタン及び微粒子酸化亜鉛と呼ばれるものを用いることができる。これらの微粒子の好ましい平均一次粒径は、透明感のある自然な仕上りを得る点から、10〜90nmが好ましく、さらに20〜70nmが好ましい。ここで平均一次粒径は走査型電子顕微鏡により測定できる。
具体的には、微粒子酸化チタンとしては、TTO−51、TTO−55(共に石原産業社製)、MT−500SA、MT−600SA(共にテイカ社製)などが挙げられる。また、微粒子酸化亜鉛としてはZnO−310、ZnO−350(共に住友大阪セメント社製)、FZO−51(石原産業社製)、MZ−300、MZ−500(共にテイカ社製)などが挙げられる。
また、これらの(a)酸化チタン及び酸化亜鉛は、それぞれ単独で用いてもよく、2種以上を組み合わせて用いてもよい。
Hereinafter, embodiments of the present invention will be described in detail.
The (a) titanium oxide and zinc oxide used in the present invention are not particularly limited as long as the average primary particle size is less than 100 nm, and those generally called fine particle titanium oxide and fine particle zinc oxide can be used. . The preferable average primary particle diameter of these fine particles is preferably 10 to 90 nm, more preferably 20 to 70 nm, from the viewpoint of obtaining a transparent natural finish. Here, the average primary particle size can be measured with a scanning electron microscope.
Specifically, examples of the fine particle titanium oxide include TTO-51, TTO-55 (both manufactured by Ishihara Sangyo Co., Ltd.), MT-500SA, MT-600SA (both manufactured by Teika). Examples of the fine particle zinc oxide include ZnO-310, ZnO-350 (both manufactured by Sumitomo Osaka Cement Co., Ltd.), FZO-51 (manufactured by Ishihara Sangyo Co., Ltd.), MZ-300, MZ-500 (both manufactured by Teika), and the like. .
In addition, these (a) titanium oxide and zinc oxide may be used alone or in combination of two or more.
これらの(a)酸化チタン及び/又は酸化亜鉛は、本発明の粉末化粧料中に10〜30質量%含有し、さらに好ましくは10〜25質量%含有する。この範囲で含有することにより、透明感のある自然な仕上りが得られ、かつ顔料級金属酸化物の含有量が低くとも充分なカバー効果が得られる。 These (a) titanium oxide and / or zinc oxide are contained in the powder cosmetic of the present invention in an amount of 10 to 30% by mass, more preferably 10 to 25% by mass. By containing in this range, a transparent natural finish can be obtained, and a sufficient cover effect can be obtained even if the pigment-grade metal oxide content is low.
本発明に用いられる(b)球状弾性樹脂粉体は、形状が球状であって、かつ柔かい弾性を有する樹脂からなる粉体、すなわち球状エラストマー粉体であり、球状シリカのような無機粉体や球状ナイロンパウダーのような硬い樹脂とは相違する。球状弾性樹脂粉体としては、球状エラストマーであればよいが、球状シリコーンエラストマーが好ましい。球状弾性樹脂粉体の電子顕微鏡観察による平均一次粒径は0.1〜20μmの範囲にあるのが好ましい。具体的には、トレフィルE−506S、E−508(共に東レ・ダウコーニング社製)、KSP−100、KSP−102、KSP−300(いずれも信越化学工業社製)などが挙げられる。 The (b) spherical elastic resin powder used in the present invention is a powder having a spherical shape and a soft elasticity, that is, a spherical elastomer powder, an inorganic powder such as spherical silica, It is different from hard resin such as spherical nylon powder. The spherical elastic resin powder may be a spherical elastomer, but a spherical silicone elastomer is preferable. The average primary particle diameter of the spherical elastic resin powder as observed with an electron microscope is preferably in the range of 0.1 to 20 μm. Specific examples include Trefill E-506S and E-508 (both manufactured by Toray Dow Corning), KSP-100, KSP-102, and KSP-300 (all manufactured by Shin-Etsu Chemical Co., Ltd.).
また、上記(b)球状弾性樹脂粉体は、その分散性を高めるため、例えばシリコーン処理、アシルアミノ酸処理、脂肪酸塩処理、フッ素処理、親水性高分子処理等の表面処理が行なわれていても構わない。また更にその前処理又は後処理として、タルクやマイカなどの板状粉体と前もって混合しても構わないし、水等の溶媒に分散されていても構わない。 The spherical elastic resin powder (b) may be subjected to surface treatment such as silicone treatment, acylamino acid treatment, fatty acid salt treatment, fluorine treatment, hydrophilic polymer treatment, etc., in order to improve its dispersibility. I do not care. Further, as the pretreatment or posttreatment, it may be mixed in advance with a plate-like powder such as talc or mica, or may be dispersed in a solvent such as water.
この(b)球状弾性樹脂粉体は、本発明の粉末化粧料中に10〜50質量%含有し、好ましくは10〜40質量%含有する。この範囲で含有することにより、優れた凹凸カバー効果、色ムラカバー効果が得られるとともに良好な使用感が達成される。 This (b) spherical elastic resin powder is contained in the powder cosmetic of the present invention in an amount of 10 to 50% by mass, preferably 10 to 40% by mass. By containing in this range, the excellent uneven | corrugated cover effect and the uneven color cover effect are acquired, and a favorable usability | use_condition is achieved.
本発明に用いられる(c)平均一次粒径が100nm以上の金属酸化物粉体としては、一般的に顔料級と呼ばれ、酸化チタン、酸化亜鉛、酸化鉄等が挙げられる。ここで平均一次粒径は走査型電子顕微鏡により測定できる。 The metal oxide powder (c) having an average primary particle size of 100 nm or more used in the present invention is generally called a pigment class and includes titanium oxide, zinc oxide, iron oxide and the like. Here, the average primary particle size can be measured with a scanning electron microscope.
(c)金属酸化物粉体は本発明粉末化粧料中に、0〜5質量%、好ましくは0〜3質量%含有するのが好ましい。(c)金属酸化物粉体をこのような低含有量の範囲とすることにより、過剰な隠蔽能を防ぎ、自然な仕上りを得ることができる。 (C) The metal oxide powder is contained in the powder cosmetic of the present invention in an amount of 0 to 5% by mass, preferably 0 to 3% by mass. (C) By making a metal oxide powder into the range of such a low content, excessive concealment ability can be prevented and a natural finish can be obtained.
本発明の粉末化粧料は、透明感のある自然な仕上りと、凹凸カバー効果、色ムラカバー効果と使用感とのバランスを図る点から成分(a)1質量部に対する成分(b)の含有量は、0.3〜5質量部の範囲、特に0.5〜3質量部の範囲が好ましい。また、成分(a)1質量部に対する成分(c)の含有量は0〜0.5質量部、特に0〜0.3質量部の範囲が好ましい。 The content of the component (b) with respect to 1 part by mass of the component (a) is that the powder cosmetic of the present invention balances the natural finish with transparency, the uneven cover effect, the uneven color cover effect and the feeling of use. The range of 0.3 to 5 parts by mass, particularly 0.5 to 3 parts by mass is preferable. Further, the content of the component (c) with respect to 1 part by mass of the component (a) is preferably in the range of 0 to 0.5 parts by mass, particularly preferably in the range of 0 to 0.3 parts by mass.
本発明は、紫外線防御を主な目的とするものではない。加えて、紫外線吸収剤を配合すると、感触悪化(べたべた感)に繋がってしまうため、本発明の粉末化粧料は、実質的に紫外線吸収剤を含まなくとも良い。 The present invention is not primarily intended for UV protection. In addition, when an ultraviolet absorber is blended, it leads to a worse feeling (sticky feeling). Therefore, the powder cosmetic of the present invention does not necessarily contain an ultraviolet absorber.
本発明の粉末化粧料には、上記成分以外に、通常化粧料に用いられる油剤、前記以外の粉体、フッ素化合物、前記以外の樹脂、界面活性剤、粘剤、防腐剤、香料、保湿剤、塩類、溶媒、酸化防止剤、キレート剤、中和剤、pH調整剤、昆虫忌避剤等の成分を使用することができる。 In addition to the above components, the powder cosmetics of the present invention include oils usually used in cosmetics, powders other than those mentioned above, fluorine compounds, resins other than those mentioned above, surfactants, stickers, preservatives, fragrances, and moisturizers. Ingredients such as salts, solvents, antioxidants, chelating agents, neutralizing agents, pH adjusting agents and insect repellents can be used.
上記の粉体の例としては、赤色104号、赤色102号、赤色226号、赤色201号、赤色202号、黄色4号、黒色401号等の色素、青色1号アルミニウムレーキ、黄色4号アルミニウムレーキ、黄色5号アルミニウムレーキ、黄色203号バリウムレーキ等のレーキ色素;ナイロンパウダー、シルクパウダー、ウレタンパウダー、テフロン(登録商標)パウダー、シリコーンパウダー、ポリメタクリル酸メチルパウダー、セルロースパウダー、ポリエチレン末等の高分子;タルク、マイカ、セリサイト、カオリン、板状硫酸バリウム等の体質顔料;雲母チタン、ベンガラ被覆雲母チタン、カルミン被覆雲母チタン、紺青被覆雲母チタン、黒酸化鉄被覆雲母チタン等のパール顔料;硫酸バリウム、炭酸カルシウム、炭酸マグネシウム、珪酸アルミニウム、珪酸マグネシウム等の金属塩;シリカ、アルミナ等の無機粉体;ベントナイト、スメクタイト、窒化ホウ素、ラウロイルリジン等が挙げられる。これらの粉体の形状(球状、棒状、針状、板状、不定形状、燐片状、紡錘状等)、大きさに特に制限はない。これら各種の粉体は、それぞれ単独で処理したものを混合しても、混合物としてまとめて処理しても構わない。また、混合物の色を肌色などに調色したものを処理することも可能である。 Examples of the above powder include pigments such as Red No. 104, Red No. 102, Red No. 226, Red No. 201, Red No. 202, Yellow No. 4, Black No. 401, Blue No. 1 aluminum lake, Yellow No. 4 aluminum Rake dyes such as lake, yellow No. 5 aluminum lake, yellow No. 203 barium lake; nylon powder, silk powder, urethane powder, Teflon (registered trademark) powder, silicone powder, polymethyl methacrylate powder, cellulose powder, polyethylene powder, etc. Polymers; extender pigments such as talc, mica, sericite, kaolin, plate-like barium sulfate; pearl pigments such as mica titanium, Bengala-coated mica titanium, carmine-coated mica titanium, bitumen-coated mica titanium, black iron oxide-coated mica titanium; Barium sulfate, calcium carbonate, magnesium carbonate, Aluminum, metal salts such as magnesium silicate; silica, alumina such as inorganic powder; bentonite, smectite, boron nitride, lauroyl lysine. There are no particular restrictions on the shape (spherical, rod-like, needle-like, plate-like, irregular shape, flake-like, spindle-like, etc.) and size of these powders. These various types of powders may be mixed independently or processed together as a mixture. Moreover, it is also possible to process the color of the mixture adjusted to a skin color or the like.
上記の油剤としては、通常化粧料に用いられる揮発性及び不揮発性の油剤、溶剤、ならびに樹脂等が挙げられ、常温で液体、ペースト、固体のいずれであっても構わない。油剤の例としては、例えばセチルアルコール、イソステアリルアルコール、ラウリルアルコール、ヘキサデシルアルコール、オクチルドデカノール等の高級アルコール;イソステアリン酸、ウンデシレン酸、オレイン酸等の脂肪酸;グリセリン、ソルビトール、エチレングリコール、プロピレングリコール、ポリエチレングリコール等の多価アルコール;ミリスチン酸ミリスチル、ラウリン酸ヘキシル、オレイン酸デシル、ミリスチン酸イソプロピル、ジメチルオクタン酸ヘキシルデシル、モノステアリン酸グリセリン、フタル酸ジエチル、モノステアリン酸エチレングリコール、オキシステアリン酸オクチル等のエステル類;流動パラフィン、パラフィン、ワセリン、スクワラン等の炭化水素;ラノリン、還元ラノリン、カルナバロウ、キャンデリラロウ、セレシン、オゾケライト、マイクロクリスタリンワックス等のロウ;ミンク油、カカオ脂、ヤシ油、パーム核油、ツバキ油、ゴマ油、ヒマシ油、オリーブ油等の油脂;ポリエチレンワックス、エチレン・α−オレフィン・コオリゴマー、エチレンプロピレンポリマー等が挙げられる。 Examples of the oil include volatile and non-volatile oils usually used in cosmetics, solvents, resins, and the like, and may be liquid, paste, or solid at room temperature. Examples of oil agents include, for example, higher alcohols such as cetyl alcohol, isostearyl alcohol, lauryl alcohol, hexadecyl alcohol, octyldodecanol; fatty acids such as isostearic acid, undecylenic acid, oleic acid; glycerin, sorbitol, ethylene glycol, propylene glycol Polyhydric alcohols such as polyethylene glycol; myristyl myristate, hexyl laurate, decyl oleate, isopropyl myristate, hexyl decyl dimethyloctanoate, glyceryl monostearate, diethyl phthalate, ethylene glycol monostearate, octyl oxystearate Esters such as liquids; hydrocarbons such as liquid paraffin, paraffin, petrolatum, squalane; lanolin, reduced lanolin, carnauba wax, key Waxes such as ndelilla wax, ceresin, ozokerite, microcrystalline wax; oils such as mink oil, cocoa butter, palm oil, palm kernel oil, camellia oil, sesame oil, castor oil, olive oil; polyethylene wax, ethylene / α-olefin / co-oligomer And ethylene propylene polymer.
また、別の形態の油剤の例としては、例えばジメチルポリシロキサン、メチルハイドロジェンポリシロキサン、メチルフェニルポリシロキサン、ポリエーテル変性オルガノポリシロキサン、フルオロアルキル・ポリオキシアルキレン共変性オルガノポリシロキサン、アルキル変性オルガノポリシロキサン、末端変性オルガノポリシロキサン、フッ素変性オルガノポリシロキサン、アミノ変性オルガノポリシロキサン、シリコーンゲル、アクリルシリコーン、トリメチルシロキシケイ酸、シリコーンRTVゴム等のシリコーン化合物;パーフルオロポリエーテル、フッ化ピッチ、フルオロカーボン、フルオロアルコール等のフッ素化合物が挙げられる。 Examples of other forms of oil include dimethylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, polyether-modified organopolysiloxane, fluoroalkyl / polyoxyalkylene co-modified organopolysiloxane, and alkyl-modified organo. Silicone compounds such as polysiloxane, terminal-modified organopolysiloxane, fluorine-modified organopolysiloxane, amino-modified organopolysiloxane, silicone gel, acrylic silicone, trimethylsiloxysilicic acid, silicone RTV rubber; perfluoropolyether, fluorinated pitch, fluorocarbon And fluorine compounds such as fluoroalcohol.
溶媒の例としては、精製水、環状シリコーン、エタノール、軽質流動イソパラフィン、低級アルコール、エーテル類、LPG、フルオロカーボン、N−メチルピロリドン、フルオロアルコール、揮発性直鎖状シリコーン、次世代フロン等が挙げられる。 Examples of the solvent include purified water, cyclic silicone, ethanol, light liquid isoparaffin, lower alcohol, ethers, LPG, fluorocarbon, N-methylpyrrolidone, fluoroalcohol, volatile linear silicone, and next-generation fluorocarbon. .
界面活性剤としては、例えばアニオン型界面活性剤、カチオン型界面活性剤、ノニオン型界面活性剤、ベタイン型界面活性剤を用いることができる。 As the surfactant, for example, an anionic surfactant, a cationic surfactant, a nonionic surfactant, or a betaine surfactant can be used.
粘剤、樹脂の例としては、ポリアクリル酸ナトリウム、セルロースエーテル、アルギン酸カルシウム、カルボキシビニルポリマー、エチレン/アクリル酸共重合体、ビニルピロリドン系ポリマー、ビニルアルコール/ビニルピロリドン共重合体、窒素置換アクリルアミド系ポリマー、ポリアクリルアミド、カチオン化ガーガム等のカチオン系ポリマー、ジメチルアクリルアンモニウム系ポリマー、アクリル酸メタクリル酸アクリル共重合体、POE/POP共重合体、ポリビニルアルコール、プルラン、寒天、ゼラチン、タマリンド種子多糖類、キサンタンガム、カラギーナン、ハイメトキシルペクチン、ローメトキシルペクチン、ガーガム、アラビアゴム、結晶セルロース、アラビノガラクタン、カラヤガム、トラガカントガム、アルギン酸、アルブミン、カゼイン、カードラン、ジェランガム、デキストラン、セルロース、ポリエチレンイミン、高重合ポリエチレングリコール、カチオン化シリコーン重合体、合成ラテックス等が挙げられる。 Examples of adhesives and resins include sodium polyacrylate, cellulose ether, calcium alginate, carboxyvinyl polymer, ethylene / acrylic acid copolymer, vinyl pyrrolidone polymer, vinyl alcohol / vinyl pyrrolidone copolymer, nitrogen substituted acrylamide type Polymer, polyacrylamide, cationic polymer such as cationized gar gum, dimethylacrylammonium polymer, acrylic acid / methacrylic acid acrylic copolymer, POE / POP copolymer, polyvinyl alcohol, pullulan, agar, gelatin, tamarind seed polysaccharide, Xanthan gum, carrageenan, high methoxyl pectin, low methoxyl pectin, gar gum, gum arabic, crystalline cellulose, arabinogalactan, karaya gum, gum tragacanth, algin , Albumin, casein, curdlan, gellan gum, dextran, cellulose, polyethyleneimine, highly polymerized polyethylene glycol, cationized silicone polymer, synthetic latex, and the like.
本発明の粉末化粧料は、粉体を主骨格とし、この粉体中に油剤が分散している化粧料であり、粉体を60質量%以上、より好ましくは80質量%以上含有する化粧料である。本発明の粉末化粧料としては、ファンデーション、コンシーラー、化粧下地、ハイライト、白粉などが挙げられ、毛穴や小ジワなどの肌の凹凸や色ムラを補正する目的に用いることができる。その形態は、粉末状、固形状の何れでもよいが、固形状とした場合に本発明の効果が特に発揮される。固形粉末化粧料は、固形状に成型された粉末化粧料であり、粉体分散、混合等通常の製法に従って半製品を製造した後、成形を行い得ることができる。 The powder cosmetic of the present invention is a cosmetic in which powder is a main skeleton and an oil agent is dispersed in the powder. The cosmetic contains 60% by mass or more, more preferably 80% by mass or more of the powder. It is. Examples of the powder cosmetic of the present invention include foundations, concealers, makeup bases, highlights, white powder, and the like, and can be used for the purpose of correcting unevenness and color unevenness of skin such as pores and fine wrinkles. The form may be either powdery or solid, but the effect of the present invention is particularly exhibited when it is solid. The solid powder cosmetic is a powder cosmetic molded into a solid form, and can be molded after producing a semi-finished product according to a normal production method such as powder dispersion or mixing.
以下、実施例、及び比較例に基づいて本発明を詳明する。まず、実施例及び比較例の化粧料の処方と製造方法を以下に示す。 Hereinafter, the present invention will be described in detail based on examples and comparative examples. First, prescriptions and production methods for cosmetics in Examples and Comparative Examples are shown below.
(製造方法)
成分Aをミキサーにて混合した。次いで、均一に混合・溶解した成分Bを成分Aに加えてさらに混合した。得られた粉末をアトマイザーにて粉砕し、メッシュを通した後、金型を用いて金皿に打型して製品を得た。
(Production method)
Component A was mixed with a mixer. Next, the uniformly mixed and dissolved component B was added to the component A and further mixed. The obtained powder was pulverized with an atomizer, passed through a mesh, and then molded into a metal dish using a mold to obtain a product.
上記の各実施例及び比較例で得られた化粧料の評価は下記のように行った。 The cosmetics obtained in each of the above Examples and Comparative Examples were evaluated as follows.
[化粧料の有用性評価試験]
専門パネラーを評価品目ごとに10名ずつ用意し(但し、品目によりパネラーが重複する場合もある)、表2に示す評価基準に従って評価を行い、全パネラーの合計点数を以って評価結果とした。従って、点数が高いほど評価項目に対する有用性が高いことを示す(満点:50点)。
[Cosmetics usefulness evaluation test]
Prepare 10 expert panelists for each evaluation item (however, panelists may overlap depending on the item), evaluate according to the evaluation criteria shown in Table 2, and use the total score of all panelists as the evaluation result. . Therefore, the higher the score, the higher the usefulness for the evaluation item (full score: 50 points).
実施例1〜2、比較例1〜6の化粧料の評価結果を表3に示す。 Table 3 shows the evaluation results of the cosmetics of Examples 1-2 and Comparative Examples 1-6.
表3の結果より、本発明の各実施例は比較例と比べてより高い効果を示していることが判った。実施例1、2は各評価項目に関して高い評価を得ている。これに対して、比較例1、2は、顔料級の酸化チタン、酸化鉄が5質量%超配合されており、隠蔽感が高く、自然な仕上りにはならないという評価を得た。また、比較例3では、微粒子の金属酸化物だけでは充分な凹凸カバー効果や色ムラカバー効果が得られず、球状弾性樹脂粉体が必須であることを示している。 From the results in Table 3, it was found that each example of the present invention showed a higher effect than the comparative example. In Examples 1 and 2, high evaluation was obtained for each evaluation item. On the other hand, Comparative Examples 1 and 2 were blended with pigment grade titanium oxide and iron oxide in an amount of more than 5% by mass, and were evaluated to have a high hiding feeling and not a natural finish. Further, Comparative Example 3 indicates that a sufficient unevenness cover effect and color unevenness cover effect cannot be obtained with only fine metal oxide, and that a spherical elastic resin powder is essential.
下記実施例3〜9についても、化粧料の有用性評価試験において優れた結果を示すものである。 The following Examples 3 to 9 also show excellent results in the usefulness evaluation test for cosmetics.
本発明の、平均一次粒径が100nm未満の酸化チタン及び/又は酸化亜鉛を合計で10〜30質量%含み、かつ球状弾性樹脂粉体を10〜50質量%含んでなり、さらに平均一次粒径が100nm以上の金属酸化物粉体が0〜5質量%であることを特徴とする粉末化粧料は、顔料級金属酸化物粉体による強い隠ぺい力が無い透明感のある仕上がりながらも、優れた使用感を有し肌の色ムラや凹凸をカバーすることのできる粉末化粧料を提供することができる。 The average primary particle size of the present invention comprises 10 to 30% by mass of titanium oxide and / or zinc oxide having a total primary particle size of less than 100 nm, and 10 to 50% by mass of spherical elastic resin powder. The powder cosmetic characterized in that the metal oxide powder having a particle size of 100 nm or more is 0 to 5% by mass is excellent in spite of having a transparent finish without strong hiding power due to the pigment-grade metal oxide powder. It is possible to provide a powder cosmetic that has a feeling of use and can cover uneven skin color and unevenness.
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