JPH1160220A - Amorphous calcium phosphate-based composite particle and cosmetic - Google Patents

Amorphous calcium phosphate-based composite particle and cosmetic

Info

Publication number
JPH1160220A
JPH1160220A JP21063297A JP21063297A JPH1160220A JP H1160220 A JPH1160220 A JP H1160220A JP 21063297 A JP21063297 A JP 21063297A JP 21063297 A JP21063297 A JP 21063297A JP H1160220 A JPH1160220 A JP H1160220A
Authority
JP
Japan
Prior art keywords
calcium phosphate
amorphous calcium
cosmetic
composite particles
based composite
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.)
Pending
Application number
JP21063297A
Other languages
Japanese (ja)
Inventor
Tatsuya Saeki
達哉 佐伯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sekisui Kasei Co Ltd
Original Assignee
Sekisui Plastics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sekisui Plastics Co Ltd filed Critical Sekisui Plastics Co Ltd
Priority to JP21063297A priority Critical patent/JPH1160220A/en
Publication of JPH1160220A publication Critical patent/JPH1160220A/en
Pending legal-status Critical Current

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  • Cosmetics (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain amorphous calcium phosphate-based composite particles having high ultraviolet rays-screening ability and suppressed in photocatalyst activity by dispersing fine particles having ultraviolet rays-screening ability into calcium hydroxide suspension and controlling the dispersion to a specific pH. SOLUTION: Fine particles with ultraviolet rays-screening ability having 0.001-1 μm preferably 0.001-0.5 μm particle diameter are added to calcium hydroxide suspension in a concentration of <=50 wt.% so as to have a content of 99-1 wt.% based on calcium hydroxide to afford mixed slurry. Phosphoric acid diluted with water is dropped to the mixed slurry so that a molar ratio of calcium to phosphorus is 1-2 to adjust pH to 9-11 and provide the objective amorphous calcium phosphate-based composite partilces. These amorphous calcium phosphate-based composite particles in an amount of 0.1-99 wt.%, preferably 0.5-50 wt.% are added to a cosmetic such as hair cosmetic, base cosmetic or deodorant cosmetic.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、化粧料、塗料、ゴム、
プラスチック、セラミックス等の配合成分として有用な
非晶質リン酸カルシウム系複合粒子等に関し、特に化粧
料として有用な紫外線遮蔽能が高く、光触媒活性を抑制
した非晶質リン酸カルシウム系複合粒子とこの複合粒子
を配合した化粧料に関する。
The present invention relates to cosmetics, paints, rubbers,
Amorphous calcium phosphate-based composite particles useful as a compounding component for plastics, ceramics, etc., and blended with amorphous calcium phosphate-based composite particles, which are particularly useful as cosmetics and have high ultraviolet shielding ability and reduced photocatalytic activity Related to cosmetics.

【0002】[0002]

【従来の技術】従来より、酸化チタン、酸化亜鉛、酸化
セリウム等の微粒子は無機系の紫外線遮蔽剤として知ら
れており、これらの無機系の紫外線遮蔽剤は有機系のも
のと比べて耐候性、耐食性、安全性に優れるため、化粧
料や塗料等の配合成分として汎用されている。しかし、
これら酸化チタン等の紫外線遮蔽剤は、紫外線遮蔽能が
高く、この点優れているものの同時に、光触媒活性が強
いために、他の配合成分、特に化粧料においてはビタミ
ン等の生理活性成分を分解してしまうという問題があっ
た。また、粒子表面に有機珪素化合物を被覆してなる化
粧料が特開平8−104606号公報等に提案されてい
るが、これでもなお活性を消失させることは不十分であ
った。
2. Description of the Related Art Conventionally, fine particles of titanium oxide, zinc oxide, cerium oxide and the like have been known as inorganic ultraviolet shielding agents, and these inorganic ultraviolet shielding agents are more resistant to weathering than organic ones. Because of its excellent corrosion resistance and safety, it is widely used as a compounding component for cosmetics and paints. But,
These ultraviolet ray shielding agents such as titanium oxide have high ultraviolet ray shielding ability and are excellent in this respect, but at the same time, because of their strong photocatalytic activity, they decompose physiologically active ingredients such as vitamins in other compounding ingredients, especially in cosmetics. There was a problem that would. Further, a cosmetic comprising a particle surface coated with an organosilicon compound has been proposed in Japanese Patent Application Laid-Open No. H08-104606 and the like, but it was still insufficient to eliminate the activity.

【0003】[0003]

【発明が解決しようとする課題】本発明は、上述の問題
点を解決するために、すなわち化粧料においてビタミン
等の生理活性成分を分解しない程度にまで光触媒活性を
抑制し、同時に高い紫外線吸収能を有する無機系の粒子
を提供すること、及び、この粒子を配合した化粧料を提
供することにある。
DISCLOSURE OF THE INVENTION The present invention is intended to solve the above-mentioned problems, that is, to suppress photocatalytic activity to such an extent that physiologically active components such as vitamins are not decomposed in cosmetics, and at the same time, to have high ultraviolet absorbing ability. It is an object of the present invention to provide inorganic particles having the following, and to provide a cosmetic containing the particles.

【0004】[0004]

【課題を解決するための手段】本発明者は、上記の目的
を達成すべく、鋭意検討した結果、従来から知られてい
る高い紫外線遮蔽能を有する酸化チタン等の微粒子と非
晶質リン酸カルシウムとを複合するにあたり、紫外線遮
蔽能を有する微粒子と非晶質リン酸カルシウム微粒子と
を使用して複合粒子とするのではなく、水酸化カルシウ
ム懸濁液に紫外線遮蔽能を有する微粒子を分散した後、
リン酸水溶液を滴下し、pHを9〜11に調節して非晶
質リン酸カルシウム系複合粒子とすることで、特に化粧
料等で配合されるビタミン等の生理活性成分を分解しな
い程度に光触媒活性を抑制できることを見出し、本発明
を完成させたものである。
Means for Solving the Problems The present inventor has conducted intensive studies in order to achieve the above-mentioned object, and as a result, it has been found that fine particles of titanium oxide and the like, which have conventionally been known to have high ultraviolet shielding ability, and amorphous calcium phosphate are used. In compounding, instead of using fine particles having ultraviolet shielding ability and amorphous calcium phosphate fine particles to form composite particles, after dispersing fine particles having ultraviolet shielding ability in a calcium hydroxide suspension,
By dropping a phosphoric acid aqueous solution and adjusting the pH to 9 to 11 to form amorphous calcium phosphate-based composite particles, the photocatalytic activity is reduced to such an extent that physiologically active components such as vitamins, which are blended particularly in cosmetics, are not decomposed. They have found that the present invention can be suppressed, and have completed the present invention.

【0005】すなわち、本発明は水酸化カルシウム懸濁
液に紫外線遮蔽能を有する微粒子を分散した後、リン酸
水溶液を滴下し、pHを9〜11に調節して得たことを
特徴とする非晶質リン酸カルシウム系複合粒子である。
また、本発明の非晶質リン酸カルシウム系複合粒子は、
優れた皮脂等の吸着性能をも有する優れたものである。
That is, the present invention is characterized in that a fine particle having ultraviolet shielding ability is dispersed in a calcium hydroxide suspension, and then an aqueous solution of phosphoric acid is added dropwise to adjust the pH to 9-11. It is a crystalline calcium phosphate composite particle.
Further, the amorphous calcium phosphate-based composite particles of the present invention,
It is an excellent material having excellent sebum adsorption performance.

【0006】特に、紫外線遮蔽能を有する微粒子が、酸
化チタン、酸化亜鉛、酸化セリウムから選ばれる少なく
とも1種であるものは優れた紫外線遮蔽能を有するので
特に好ましい。また、上記した本発明の非晶質リン酸カ
ルシウム系複合粒子が配合されてなる化粧料は、化粧料
に配合されるビタミン等の生理活性成分を分解しない程
度に光触媒活性を抑制できるので、優れた化粧料とする
ことができる。
[0006] In particular, particles having at least one selected from the group consisting of titanium oxide, zinc oxide and cerium oxide are particularly preferred because they have excellent ultraviolet shielding ability. In addition, cosmetics containing the above-described amorphous calcium phosphate-based composite particles of the present invention can suppress photocatalytic activity to such an extent that physiologically active components such as vitamins incorporated in the cosmetics are not decomposed. Fees.

【0007】本発明の非晶質リン酸カルシウム複合粒子
は、水に対して50重量%以下の濃度になるように、水
酸化カルシウム微粒子を撹拌機等を用いて分散したスラ
リー中に、水酸化カルシウムに対して99重量%〜1重
量%となるように紫外線遮蔽能を有する微粒子を混合し
て得た混合スラリーを使用して、そのスラリー中に水で
希釈した85%リン酸をカルシウムとリンのモル比が1
〜2になるように滴下して、pHを9〜11に調節して
非晶質リン酸カルシウム系複合粒子としたものである。
pH9未満では得られる非晶質リン酸カルシウム系複合
粒子の結晶性が上昇して結晶水が脱落し吸着性能などの
活性が不十分となりやすく、一方、pH11を越えると
水酸化カルシウムの未反応物が生成することから、pH
を9〜11に調節する必要がある。また、紫外線遮蔽能
を有する微粒子として酸化チタンと使用する場合、上記
の混合スラリーは90℃以下で混合することが好まし
く、更に好ましくは50℃以下混合することが好まし
い。リン酸滴下に関しては、90℃以下で滴下すること
が好ましく、更に好ましくは50℃以下で滴下すること
が好ましい。この理由は、温度が高くなるほど非晶質リ
ン酸カルシウムの結晶性が上昇して結晶水が脱落し、吸
着性能などの活性が不十分となりやすいからである。
[0007] The amorphous calcium phosphate composite particles of the present invention are mixed with calcium hydroxide in a slurry in which calcium hydroxide fine particles are dispersed using a stirrer or the like so as to have a concentration of 50% by weight or less based on water. Using a mixed slurry obtained by mixing fine particles having an ultraviolet shielding ability so as to be 99% by weight to 1% by weight, 85% phosphoric acid diluted with water is added to the slurry to prepare a mole of calcium and phosphorus. The ratio is 1
To 2 to adjust the pH to 9 to 11 to obtain amorphous calcium phosphate-based composite particles.
When the pH is less than 9, the crystallinity of the obtained amorphous calcium phosphate composite particles increases, water of crystallization drops, and the activity such as adsorption performance tends to be insufficient. On the other hand, when the pH exceeds 11, unreacted calcium hydroxide is formed. From the pH
Needs to be adjusted to 9-11. When titanium oxide is used as fine particles having an ultraviolet shielding ability, the above mixed slurry is preferably mixed at 90 ° C. or lower, more preferably at 50 ° C. or lower. Regarding the phosphoric acid dropping, it is preferable to drop at 90 ° C or lower, more preferably at 50 ° C or lower. The reason for this is that the higher the temperature, the higher the crystallinity of the amorphous calcium phosphate increases, the water of crystallization drops, and the activity such as adsorption performance tends to be insufficient.

【0008】本発明の非晶質リン酸カルシウム系複合粒
子の非晶質リン酸カルシウム成分は、一般化学式M
3(ZO42・nH2Oで表される物質群であって、Mは
Ca、Pb、Ba、Sr、Cd、Zn、Ni、Mg、N
a、K、Fe、Alの元素の中から選ばれる少なくとも
1種、また、ZO4は、PO4、AsO4、VO4、SiO
4の中から選ばれる少なくとも1種から構成されてい
る。
The amorphous calcium phosphate component of the amorphous calcium phosphate composite particles of the present invention has a general chemical formula M
3 (ZO 4 ) 2 · nH 2 O, in which M is Ca, Pb, Ba, Sr, Cd, Zn, Ni, Mg, N
a, K, Fe, at least one element selected from the elements of Al, and ZO 4 is PO 4 , AsO 4 , VO 4 , SiO
It is composed of at least one kind selected from 4 types.

【0009】また、本発明で使用する紫外線遮蔽能を有
する微粒子としては、酸化チタン、酸化亜鉛、酸化セリ
ウム等の微粒子を挙げることができるが、特に紫外線遮
蔽能の点から酸化チタン、酸化亜鉛、酸化セリウムから
選ばれる少なくとも1種であることが好ましいが、最も
好ましくは酸化チタンであって、特にルチル型、アナタ
ース型、アモルファス等が挙げられる。また、これらの
紫外線遮蔽能を有する微粒子は、一次粒子が凝集した二
次粒子であって、その粒子径は約0.001〜1μmの
ものが好ましく使用できる。紫外線遮蔽能を有する微粒
子の好ましい一次粒子径は約0.001〜0.5μmで
ある。
The fine particles having an ultraviolet shielding ability used in the present invention include fine particles of titanium oxide, zinc oxide, cerium oxide and the like. It is preferably at least one selected from cerium oxide, and most preferably titanium oxide, particularly rutile type, anatase type and amorphous. Further, these fine particles having ultraviolet shielding ability are secondary particles in which primary particles are aggregated, and those having a particle diameter of about 0.001 to 1 μm can be preferably used. The preferred primary particle diameter of the fine particles having ultraviolet shielding ability is about 0.001 to 0.5 μm.

【0010】このようにして得られた非晶質リン酸カル
シウム系複合粒子は、得られる粒子が微粒子、もしくは
略球状で、かつ、比表面積を大きくできるものであれば
よく、例えば、噴霧造粒法等によって、任意の粒径を有
する複合粒子に乾燥・造粒することができ、特に限定さ
れるものではない。しかし、造粒乾燥する場合、酸化チ
タン等の紫外線遮蔽能を有する微粒子が90重量%以上
となると、粘度が高くなるので、造粒に不適となる。好
ましい酸化チタン等の紫外線遮蔽能を有する微粒子の濃
度としては1〜90重量%である。
The amorphous calcium phosphate-based composite particles obtained in this manner may be fine particles or substantially spherical particles having a large specific surface area. Thus, the particles can be dried and granulated into composite particles having an arbitrary particle size, and are not particularly limited. However, in the case of granulating and drying, if the amount of fine particles having an ultraviolet shielding ability, such as titanium oxide, is 90% by weight or more, the viscosity becomes high, which is not suitable for granulation. The preferred concentration of the fine particles having an ultraviolet shielding ability such as titanium oxide is 1 to 90% by weight.

【0011】他の造粒法としては、フリーズドライ後に
粉砕する造粒法、または、高速撹拌型造粒法を用いても
よい。更に、濾過、円心脱水、フィルタープレス、吸引
濾過法などで脱水した後、乾燥機などで乾燥し、その
後、粉砕機等を用いて微粉砕してもよい。
As another granulation method, a granulation method of crushing after freeze-drying, or a high-speed stirring type granulation method may be used. Furthermore, after dehydration by filtration, centrifugal dehydration, filter press, suction filtration, or the like, drying may be performed by a drier or the like, and then finely pulverized using a pulverizer or the like.

【0012】本発明の化粧料とは、例えば、ファンデー
ション、口紅、アイシャドウ、チーク、ネイルカラー等
のメイクアップ化粧料、シャンプー、リンス、コンディ
ショナー、ヘアートリートメント等の頭髪化粧料、乳
液、ローション、クリーム、クレンジング、パック、サ
ンスクリーン剤、化粧下地料等の基礎化粧料、デオドラ
ント、入浴剤、ボディシャンプー、石鹸、香水等が挙げ
られる。また、本発明の化粧料にはエアゾール型化粧料
も含まれる。また、本発明の複合粉体を化粧料に配合す
る場合の配合量は、化粧の総量を基準として、0.1〜
99重量%が好ましく、さらに好ましくは0.5〜50
重量%である。
The cosmetics of the present invention include, for example, makeup cosmetics such as foundation, lipstick, eyeshadow, teak, nail color, etc., hair cosmetics such as shampoo, rinse, conditioner, hair treatment, emulsion, lotion, cream , Cleansing, packs, sunscreens, basic cosmetics such as makeup bases, deodorants, bath additives, body shampoos, soaps, perfumes and the like. The cosmetic of the present invention also includes an aerosol-type cosmetic. In addition, the compounding amount when compounding the composite powder of the present invention into a cosmetic is 0.1 to 0.1% based on the total amount of the cosmetic.
It is preferably 99% by weight, more preferably 0.5 to 50%.
% By weight.

【0013】本発明の化粧料は、本発明の複合粒子と一
緒に、従来化粧料に使用されている油剤、粉体(顔料、
色素)、樹脂、界面活性剤、粘剤、防腐剤、香料、紫外
線吸収剤(有機系、無機系を含む)、保湿剤、生理活性
成分、塩類、溶媒、酸化防止剤、キレート剤、中和剤、
pH調整剤等の成分を配合することが可能である。ま
た、本発明の複合粒子は、事前に表面処理がされていて
もいなくても構わない。表面処理の例としては、フッ素
化合物処理、シリコーン処理、金属石鹸処理、アシル化
リジン処理、油剤処理、シラン処理、アミノ酸処理、ワ
ックス処理、金属酸化物処理等が挙げられるが、化粧料
で従来用いられているものであれば使用可能である。
The cosmetic of the present invention can be used together with the composite particles of the present invention together with oils and powders (pigments, pigments) conventionally used in cosmetics.
Pigments), resins, surfactants, thickeners, preservatives, fragrances, ultraviolet absorbers (including organic and inorganic), humectants, physiologically active ingredients, salts, solvents, antioxidants, chelating agents, neutralizers Agent,
Components such as a pH adjuster can be blended. Further, the composite particles of the present invention may or may not have been surface-treated in advance. Examples of the surface treatment include fluorine compound treatment, silicone treatment, metal soap treatment, acylated lysine treatment, oil agent treatment, silane treatment, amino acid treatment, wax treatment, metal oxide treatment, etc. Anything that can be used is acceptable.

【0014】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、イソパ
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等が挙げられる。
Examples of oils include cetyl alcohol, isostearyl alcohol, lauryl alcohol,
Hexadecyl alcohol, higher alcohols such as octyldodecanol, fatty acids such as isostearic acid, undecylenic acid and oleic acid, polyhydric alcohols such as glycerin, sorbitol, ethylene glycol, propylene glycol and polyethylene glycol, myristyl myristate, hexyl laurate, Decyl oleate, isopropyl myristate, hexyldecyl dimethyloctanoate, glyceryl monostearate, diethyl phthalate,
Esters such as ethylene glycol monostearate, octyl oxystearate, hydrocarbons such as liquid paraffin, isoparaffin, petrolatum, squalane, lanolin, reduced lanolin, waxes such as carnauba wax, mink oil,
Fats and oils such as cocoa butter, coconut oil, palm kernel oil, camellia oil, sesame oil, castor oil, and olive oil are exemplified.

【0015】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、アルキル変性オルガ
ノポリシロキサン、糖変性シリコーン、グリセリル変性
シリコーン、アモジメチコーン、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
シリコーン化合物等が挙げられる。更に、フツ素系油剤
の例としては、パーフルオロデカリン等のフルオロカー
ボン類、パーフルオロポリエーテル、フッ化ピッチ、パ
ーフルオロアルキル鎖を有するフルオロアルコールなど
のアルコール類、パーフルオロアルキルリン酸エステル
トリエタノールアミン塩等のリン酸エステル類、フルオ
ロアルキル鎖を有するカルボン酸類、フルオロアルキル
変性シリコーン、フッ素・ポリエーテル共変性シリコー
ン、フッ素化シリコーン樹脂などが挙げられる。
Examples of other forms of oils include dimethylpolysiloxane, methylhydrogenpolysiloxane, methylphenylpolysiloxane, polyether-modified organopolysiloxane, alkyl-modified organopolysiloxane, sugar-modified silicone, glyceryl-modified Silicone, amodimethicone, amino-modified organopolysiloxane, silicone gel, acrylic silicone,
Examples include silicone compounds such as trimethylsiloxysilicic acid and silicone RTV rubber. Further, examples of fluorine-based oils include fluorocarbons such as perfluorodecalin, alcohols such as perfluoropolyether, pitch fluoride, and fluoroalcohol having a perfluoroalkyl chain, and perfluoroalkyl phosphate triethanolamine. Examples include phosphates such as salts, carboxylic acids having a fluoroalkyl chain, fluoroalkyl-modified silicone, fluorine / polyether co-modified silicone, and fluorinated silicone resins.

【0016】粉体類の例としては、ナイロンビーズ、シ
リコーンビーズ、テフロン、シリコーンエラストマー等
の樹脂粉体、黄酸化鉄、赤色酸化鉄、黒酸化鉄、酸化ク
ロム、酸化コバルト、カーボンブラツク、群青、紺青、
酸化亜鉛、酸化チタン、酸化ジルコニウム、酸化珪素、
酸化アルミニウム、酸化セリウム、雲母チタン、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、炭化珪素、有機色素、レ
ーキ、微粒子酸化チタン、微粒子酸化亜鉛、微粒子酸化
鉄、セリサイト、マイカ、雲母、タルク、板状硫酸バリ
ウム等が挙げられ、さらにシリコーン処埋、フツ素化合
物処理、シランカップリング剤処理、シラン処理、有機
チタネート処理、アシル化リジン処理、脂肪酸処理、金
属石鹸処理、油剤処理、アミノ酸処理、ワックス処理、
金属酸化物処理等の表面処理が施してあっても構わな
い。
Examples of powders include resin powders such as nylon beads, silicone beads, Teflon and silicone elastomer, yellow iron oxide, red iron oxide, black iron oxide, chromium oxide, cobalt oxide, carbon black, ultramarine, Navy blue,
Zinc oxide, titanium oxide, zirconium oxide, silicon oxide,
Aluminum oxide, cerium oxide, titanium mica, barium sulfate, calcium carbonate, magnesium carbonate, aluminum silicate, magnesium silicate, silicon carbide, organic dyes, lakes, fine titanium oxide, fine zinc oxide, fine iron oxide, sericite, mica, mica , Talc, plate-like barium sulfate, etc., furthermore, silicone treatment, fluorine compound treatment, silane coupling agent treatment, silane treatment, organic titanate treatment, acylated lysine treatment, fatty acid treatment, metal soap treatment, oil agent treatment, Amino acid treatment, wax treatment,
Surface treatment such as metal oxide treatment may be performed.

【0017】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。生理
活性成分の例としては、抗炎症剤、血行促進剤、ビタミ
ン類、チロシナーゼ活性阻害剤、尿素等が挙げられる。
溶媒の例としては、精製水、メタノール、エタノール、
イソプロピルアルコール、エーテル、LPG、揮発性シ
リコーン、軽質流勤イソパラフィン、代替フロン等が挙
げられる。なお、精製水の代わりにミネラルウォーター
を使用することも可能である。
As the surfactant, for example, an anionic surfactant, a cationic surfactant, a nonionic surfactant, and a betaine surfactant can be used. Examples of the physiologically active component include anti-inflammatory agents, blood circulation promoters, vitamins, tyrosinase activity inhibitors, urea and the like.
Examples of the solvent include purified water, methanol, ethanol,
Examples include isopropyl alcohol, ether, LPG, volatile silicones, light paraffin isoparaffin, and alternative fluorocarbons. In addition, it is also possible to use mineral water instead of purified water.

【0018】[0018]

【発明の実施の形態】紫外線遮蔽能を有する微粒子とし
て、酸化チタン微粒子を使用した例を説明する。水酸化
カルシウム懸濁液に攪拌下、水に分散した酸化チタン微
粒子を混合し、1〜10倍に希釈したリン酸水溶液を滴
下し、pH11〜9に調節することにより、粒径1μm
以下の非晶質リン酸カルシウム系複合粒子を含むスラリ
ーを得た。以下、本発明の実施例を詳細に説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS An example in which titanium oxide fine particles are used as fine particles having an ultraviolet shielding ability will be described. The titanium oxide fine particles dispersed in water are mixed with the calcium hydroxide suspension with stirring, and a phosphoric acid aqueous solution diluted 1 to 10 times is added dropwise, and the pH is adjusted to 11 to 9 to adjust the particle size to 1 μm.
A slurry containing the following amorphous calcium phosphate-based composite particles was obtained. Hereinafter, embodiments of the present invention will be described in detail.

【0019】[0019]

【実施例】【Example】

〔実施例1〕イオン交換水10リットル中に水酸化カル
シウム〔Ca(OH)2〕900gを入れ撹拌機にて混
合した。この中に、アナタース型酸化チタン微粒子〔T
iO2、石原産業(株)製ST−01〕100gを水2
00mlに分散させ、混入した。この撹拌下のスラリー
(懸濁液)中に3倍のイオン交換水で希釈した85%リ
ン酸を2484gを2時間かけて徐々に滴下し、非晶質
リン酸カルシウム系複合粒子を含むスラリー得た。
Example 1 900 g of calcium hydroxide [Ca (OH) 2 ] was added to 10 liters of ion-exchanged water and mixed with a stirrer. Among them, anatase type titanium oxide fine particles [T
100 g of iO 2 , ST-01 manufactured by Ishihara Sangyo Co., Ltd.
It was dispersed in 00 ml and mixed. To this slurry (suspension) under stirring, 2484 g of 85% phosphoric acid diluted with triple ion-exchanged water was gradually dropped over 2 hours to obtain a slurry containing amorphous calcium phosphate composite particles.

【0020】得られた非晶質リン酸カルシウム系複合粒
子を含むスラリーを、定量ポンプによりスプレードライ
ヤー(大川原化工機械社製 L−8)に供給し、そのア
トマイザーを高速回転させることにより、噴霧造粒法に
よる造粒乾燥を行った。造粒乾燥により得られた非晶質
リン酸カルシウム系複合粒子はサイクロンにより採取さ
れた。得られた非晶質リン酸カルシウム系複合粒子の平
均粒子径は10μmであった。また、サイクロンにより
採取しきれない超微粉体はバグフィルターにより採取さ
れた。
The obtained slurry containing the amorphous calcium phosphate-based composite particles is supplied to a spray dryer (L-8, manufactured by Okawara Kako Kikai Co., Ltd.) by a metering pump, and the atomizer is rotated at a high speed to obtain a spray granulation method. Granulation and drying. The amorphous calcium phosphate composite particles obtained by granulation and drying were collected by a cyclone. The average particle size of the obtained amorphous calcium phosphate composite particles was 10 μm. Ultrafine powder that could not be collected by the cyclone was collected by a bag filter.

【0021】なお、上記定量ポンプによるスラリーの供
給量は1〜3kg/hで行われ、スプレードライヤーに
おけるエアフィルターを介して、電気ヒーターによって
加温された空気の熱ガス室の入口温度は200〜250
℃に、サイクロンに繋がる排出孔における出口温度は8
0℃以下にならないように制御され、また、アトマイザ
ーの回転数は10000〜37000rpmの範囲内に
設定した。
The slurry is supplied at a rate of 1 to 3 kg / h by the metering pump, and the temperature of the inlet of the hot gas chamber of the air heated by the electric heater through the air filter in the spray drier is 200 to 200 kg / h. 250
° C, the outlet temperature at the outlet leading to the cyclone is 8
The temperature was controlled so as not to become 0 ° C. or lower, and the rotation speed of the atomizer was set within a range of 10,000 to 37000 rpm.

【0022】〔実施例2〕イオン交換水10リットル中
に水酸化カルシウム〔Ca(OH)2〕500gを入れ
撹拌機にて混合した。この中に、アナタース型微粒子酸
化チタン〔TiO2、石原産業(株)製ST−01〕5
00gを水1000mlに分散させ、混入した。この撹
拌下のスラリー中に3倍のイオン交換水で希釈した85
%リン酸を1380gを1.5時間かけて徐々に滴下
し、非晶質リン酸カルシウム系複合粒子を得た。他は上
記実施例1と同様の条件で操作を行った。
Example 2 500 g of calcium hydroxide [Ca (OH) 2 ] was placed in 10 liters of ion-exchanged water and mixed with a stirrer. Among them, anatase type fine particle titanium oxide [TiO 2 , ST-01 manufactured by Ishihara Sangyo Co., Ltd.] 5
00 g was dispersed in 1000 ml of water and mixed. In this stirred slurry, 85 diluted with 3 times ion exchanged water was used.
% Phosphoric acid was gradually added dropwise over 1.5 hours to obtain amorphous calcium phosphate-based composite particles. Otherwise, the operation was performed under the same conditions as in Example 1 above.

【0023】〔実施例3〕イオン交換水10リットル中
に水酸化カルシウム〔Ca(OH)2〕100gを入れ
撹拌機にて混合した。この中に、アナタース型微粒子酸
化チタン〔TiO2、石原産業(株)製ST−01〕9
00gを水1500mlに分散させ、混入した。この撹
拌下のスラリー中に3倍のイオン交換水で希釈した85
%リン酸276gを0.5時間かけて徐々に滴下し、非
晶質リン酸カルシウム系複合粒子を得た。他は上記実施
例1と同様の条件で操作を行った。
Example 3 100 g of calcium hydroxide [Ca (OH) 2 ] was placed in 10 liters of ion-exchanged water and mixed with a stirrer. Among them, anatase type fine particle titanium oxide [TiO 2 , ST-01 manufactured by Ishihara Sangyo Co., Ltd.] 9
00 g was dispersed in 1500 ml of water and mixed. In this stirred slurry, 85 diluted with 3 times ion exchanged water was used.
% Phosphoric acid was gradually added dropwise over 0.5 hours to obtain amorphous calcium phosphate-based composite particles. Otherwise, the operation was performed under the same conditions as in Example 1 above.

【0024】〔実施例4〕イオン交換水10リットル中
に水酸化カルシウム〔Ca(OH)2〕900gを入れ
撹拌機にて混合した。この中に、ルチル型微粒子酸化チ
タン〔TiO2、テイカ(株)製MT−500B〕10
0gを水200mlに分散させ、混入した。この撹拌下
のスラリー中に3倍のイオン交換水で希釈した85%リ
ン酸2484gを2時間かけて徐々に滴下し、非晶質リ
ン酸カルシウム系複合粒子を得た。他は上記実施例1と
同様の条件で操作を行った。
Example 4 900 g of calcium hydroxide [Ca (OH) 2 ] was placed in 10 liters of ion-exchanged water and mixed with a stirrer. Among them, rutile type fine particle titanium oxide [TiO 2 , MT-500B manufactured by Teica Co., Ltd.] 10
0 g was dispersed in 200 ml of water and mixed. To this stirred slurry, 2484 g of 85% phosphoric acid diluted with three times the volume of ion-exchanged water was gradually dropped over 2 hours to obtain amorphous calcium phosphate composite particles. Otherwise, the operation was performed under the same conditions as in Example 1 above.

【0025】〔実施例5〕イオン交換水10リットル中
に水酸化カルシウム〔Ca(OH)2〕700gを入れ
撹拌機にて混合した。この中に、ルチル型微粒子酸化チ
タン〔TiO2、テイカ(株)製MT−500B〕30
0gを水800mlに分散させ、混入した。この撹拌下
のスラリー中に3倍のイオン交換水で希釈した85%リ
ン酸1932gを1.5時間かけて徐々に滴下し、非晶
質リン酸カルシウム系複合粒子を得た。他は上記実施例
1と同様の条件で操作を行った。
Example 5 700 g of calcium hydroxide [Ca (OH) 2 ] was placed in 10 liters of ion-exchanged water and mixed with a stirrer. Among them, rutile-type fine particle titanium oxide [TiO 2 , MT-500B manufactured by Teica Co., Ltd.] 30
0 g was dispersed in 800 ml of water and mixed. 1932 g of 85% phosphoric acid diluted with three times the volume of ion-exchanged water was gradually added dropwise to the stirred slurry over 1.5 hours to obtain amorphous calcium phosphate composite particles. Otherwise, the operation was performed under the same conditions as in Example 1 above.

【0026】〔実施例6〕イオン交換水10リットル中
に水酸化カルシウム〔Ca(OH)2〕500gを入れ
撹拌機にて混合した。この中に、ルチル型微粒子酸化チ
タン〔TiO2、テイカ(株)製MT−500B〕50
0gを水1000mlに分散させ、混入した。この撹拌
下のスラリー中に3倍のイオン交換水で希釈した85%
リン酸1380gを1.5時間かけて徐々に滴下し、非
晶質リン酸カルシウム系複合粒子を得た。他は上記実施
例1と同様の条件で操作を行った。
Example 6 500 g of calcium hydroxide [Ca (OH) 2 ] was placed in 10 liters of ion-exchanged water and mixed with a stirrer. Among them, rutile-type fine particle titanium oxide [TiO 2 , MT-500B manufactured by Teica Co., Ltd.] 50
0 g was dispersed in 1000 ml of water and mixed. 85% diluted with 3 times ion exchange water in the slurry under stirring
1380 g of phosphoric acid was gradually added dropwise over 1.5 hours to obtain amorphous calcium phosphate composite particles. Otherwise, the operation was performed under the same conditions as in Example 1 above.

【0027】実施例1〜6において得られた非晶質リン
酸カルシウム系複合粒子に、ほぼ紫外線領域の光(20
0nm〜500nm)を連続的にスキャンして、それぞ
れ照射し、アパタイト複合粒子からの反射率を測定する
ことで、それぞれの紫外線吸収率を測定した。この結果
を図1,2に示した。この結果から、アナタース型の酸
化チタンを用いたものは紫外線B波の吸収能が高く、ル
チル型の酸化チタンを用いたものは紫外線A及びB波の
吸収能があることがわかる。また、この結果から明らか
なように、本発明の各複合粒子は、非晶質リン酸カルシ
ウム単体造粒粒子と比べて有意の紫外線吸収率を示し、
また、酸化チタンの含有率が高くなるにつれ紫外線吸収
率が高くなることがわかる。
The amorphous calcium phosphate composite particles obtained in Examples 1 to 6 were irradiated with light (20
(0 nm to 500 nm) was continuously scanned, each was irradiated, and the reflectance from the apatite composite particles was measured to measure the ultraviolet absorption of each. The results are shown in FIGS. From this result, it can be seen that those using anatase-type titanium oxide have high absorption ability of ultraviolet B-wave, and those using rutile-type titanium oxide have absorption ability of ultraviolet A and B-wave. Further, as is clear from the results, each composite particle of the present invention shows a significant ultraviolet absorption rate as compared with the amorphous calcium phosphate simple granulated particles,
In addition, it can be seen that the higher the content of titanium oxide, the higher the ultraviolet absorption.

【0028】次に、上記の実施例1〜6において得られ
た非晶質リン酸カルシウム系複合粒子と酸化チタン(テ
イカ(株)製MT−500B)及び表面処理した酸化チ
タン(テイカ(株)製MT−150W)の光触媒活性を
比較テストした。比較テストの方法は、40℃に加熱し
たビタミンC存在化の水に上記試料を添加し、ビタミン
Cの変化を観察した。この結果、酸化チタンは1日で黄
変し、ビタミンCが分解した。さらに、表面処理した酸
化チタンは2週間で黄変し、ビタミンCが分解した。実
施例1〜6の試料は3ヶ月後も黄変が起こらなかった。
よって、ビタミンCが分解することがなく、光触媒活性
がほとんどないことが確認できた。
Next, the amorphous calcium phosphate composite particles obtained in Examples 1 to 6, titanium oxide (MT-500B manufactured by Teica Co., Ltd.), and surface-treated titanium oxide (MT-500 manufactured by Teica Co., Ltd.) (-150 W) for photocatalytic activity. In the method of the comparative test, the above sample was added to water in the presence of vitamin C heated to 40 ° C., and changes in vitamin C were observed. As a result, the titanium oxide turned yellow in one day, and vitamin C was decomposed. Furthermore, the surface-treated titanium oxide turned yellow in two weeks, and vitamin C was decomposed. The samples of Examples 1 to 6 did not cause yellowing even after three months.
Therefore, it was confirmed that vitamin C was not decomposed and there was almost no photocatalytic activity.

【0029】[0029]

【発明の効果】本発明の非晶質リン酸カルシウム系複合
粒子は、高い紫外線遮蔽能を有する酸化チタン等の微粒
子と非晶質リン酸カルシウムとを複合するにあたり、水
酸化カルシウム懸濁液に紫外線遮蔽能を有する微粒子を
分散した後、リン酸水溶液を滴下し、pHを9〜11に
調節して非晶質リン酸カルシウム系複合粒子とすること
で、紫外線遮蔽能に優れ、かつ光触媒活性がほとんどな
いため応用できる範囲が広く、塗料、ゴム、プラスチッ
ク、セラミックス等の配合成分として使用しても、これ
らを分解して劣化等を引き起こす虞がない。さらに、本
発明の非晶質リン酸カルシウム系複合粒子は、優れた皮
脂等の吸着性能をも有する優れたものである。
The amorphous calcium phosphate-based composite particles of the present invention provide a suspension of calcium hydroxide with an ultraviolet shielding ability when the fine particles of titanium oxide or the like having a high ultraviolet shielding ability are combined with the amorphous calcium phosphate. After dispersing the fine particles, the phosphoric acid aqueous solution is dropped, and the pH is adjusted to 9 to 11 to obtain amorphous calcium phosphate-based composite particles, which can be applied since it has excellent ultraviolet shielding ability and almost no photocatalytic activity. It has a wide range, and even when used as a compounding component of paints, rubbers, plastics, ceramics, etc., there is no risk of decomposing them and causing deterioration. Further, the amorphous calcium phosphate-based composite particles of the present invention have excellent adsorption performance for sebum and the like.

【0030】また、本発明の非晶質リン酸カルシウム系
複合粒子を配合した化粧料は、優れた紫外線遮蔽能を有
し、かつ化粧料等に配合されるビタミン等の生理活性成
分を分解しない程度に光触媒活性を抑制できることがで
きるので、肌にやさしいファンデーション等の皮膚に塗
布する化粧品等にさらに好適に使用される。
The cosmetic containing the amorphous calcium phosphate-based composite particles of the present invention has an excellent ultraviolet shielding ability and does not decompose physiologically active ingredients such as vitamins incorporated in the cosmetic. Since the photocatalytic activity can be suppressed, it is more suitably used for cosmetics and the like applied to the skin such as a skin-friendly foundation.

【図面の簡単な説明】[Brief description of the drawings]

【図1】実施例1〜3で得た非晶質リン酸カルシウム系
複合粒子と酸化チタン単体の紫外線反射率測定結果を示
すグラフ。
FIG. 1 is a graph showing the results of measuring the ultraviolet reflectance of the amorphous calcium phosphate composite particles obtained in Examples 1 to 3 and titanium oxide alone.

【図2】実施例4〜6で得た非晶質リン酸カルシウム系
複合粒子と酸化チタン単体、及び非晶質リン酸カルシウ
ム単体の紫外線反射率測定結果を示すグラフ。
FIG. 2 is a graph showing UV reflectance measurement results of the amorphous calcium phosphate-based composite particles, titanium oxide alone, and amorphous calcium phosphate obtained in Examples 4 to 6.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 水酸化カルシウム懸濁液に紫外線遮蔽能
を有する微粒子を分散した後、リン酸水溶液を滴下し、
pHを9〜11に調節して得たことを特徴とする非晶質
リン酸カルシウム系複合粒子。
After dispersing fine particles having an ultraviolet shielding ability in a calcium hydroxide suspension, a phosphoric acid aqueous solution is dropped,
Amorphous calcium phosphate composite particles obtained by adjusting the pH to 9 to 11.
【請求項2】 紫外線遮蔽能を有する微粒子が、酸化チ
タン、酸化亜鉛、酸化セリウムから選ばれる少なくとも
1種であることを特徴とする請求項1に記載の非晶質リ
ン酸カルシウム系複合粒子。
2. The amorphous calcium phosphate composite particles according to claim 1, wherein the fine particles having an ultraviolet shielding ability are at least one selected from titanium oxide, zinc oxide and cerium oxide.
【請求項3】 請求項1又は2に記載の非晶質リン酸カ
ルシウム系複合粒子が配合されてなることを特徴とする
化粧料。
3. A cosmetic comprising the amorphous calcium phosphate-based composite particles according to claim 1 or 2.
JP21063297A 1997-08-05 1997-08-05 Amorphous calcium phosphate-based composite particle and cosmetic Pending JPH1160220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21063297A JPH1160220A (en) 1997-08-05 1997-08-05 Amorphous calcium phosphate-based composite particle and cosmetic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21063297A JPH1160220A (en) 1997-08-05 1997-08-05 Amorphous calcium phosphate-based composite particle and cosmetic

Publications (1)

Publication Number Publication Date
JPH1160220A true JPH1160220A (en) 1999-03-02

Family

ID=16592541

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21063297A Pending JPH1160220A (en) 1997-08-05 1997-08-05 Amorphous calcium phosphate-based composite particle and cosmetic

Country Status (1)

Country Link
JP (1) JPH1160220A (en)

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US9114266B2 (en) 2009-08-31 2015-08-25 Miyoshi Kasel, Inc. Composition for cosmetics having UV shielding effect and sebum solidifying ability, and cosmetic preparations
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US10123950B2 (en) 2009-11-10 2018-11-13 Laboratory Skin Care, Inc. Sunscreen compositions comprising uniform, rigid, spherical, nanoporous calcium phosphate particles and methods of making and using the same
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JP2020506953A (en) * 2017-02-09 2020-03-05 オムヤ インターナショナル アーゲー Functionalized calcium carbonate for improving sun protection
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EP3360601A1 (en) * 2017-02-09 2018-08-15 Omya International AG Functionalized calcium carbonate for sun protection boosting
CN110267712B (en) * 2017-02-09 2022-07-01 Omya国际股份公司 Functionalized calcium carbonate for sunscreen enhancement
AU2018219405B2 (en) * 2017-02-09 2023-03-09 Omya International Ag Functionalized calcium carbonate for sun protection boosting
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