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JP4942877B2 - Cosmetics - Google Patents
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JP4942877B2 - Cosmetics - Google Patents

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JP4942877B2
JP4942877B2 JP2001019970A JP2001019970A JP4942877B2 JP 4942877 B2 JP4942877 B2 JP 4942877B2 JP 2001019970 A JP2001019970 A JP 2001019970A JP 2001019970 A JP2001019970 A JP 2001019970A JP 4942877 B2 JP4942877 B2 JP 4942877B2
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Japan
Prior art keywords
fatty acid
ester
oils
fats
hlb
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JP2001019970A
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Japanese (ja)
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JP2002220317A (en
Inventor
泰宏 大久保
雄司 坂本
一仁 内田
友治 加藤
長宏 山崎
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Taiyo Kagaku Co Ltd
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Taiyo Kagaku Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明はHLB3以下のポリグリセリン脂肪酸エステルおよび、炭素数20以上の脂肪酸と多価アルコールとのエステルを含有することにより、増粘固化が自在に調節された化粧品組成物および、化粧品に関する。
【0002】
【従来の技術】
従来化粧品の分野では油脂を増粘固化させるのに、金属セッケン(特開昭58−89261)をはじめ脂肪酸デキストリンエステル(特開昭62−121764)、N−アシルアミノ酸誘導体(特開昭51−1913)が用いられており、中でもより安全性の高い素材として脂肪酸ポリグリセリンエステル(特開昭60−108486)が用いられていた。
しかしながら、金属セッケンは油脂への溶解が困難なため、可溶化剤として水や低級アルコールの添加が必要であり、水に対して不安定な化合物を含む油性ゲルに対しては不適である。脂肪酸デキストリンエステルは少量で触感の良いゲルを形成するが、環状シリコーン等の一部の油脂に対して不溶である。また、N−アシルアミノ酸誘導体は非常に高価であった。そして、ポリグリセリン脂肪酸エステル単品の添加による方法は、固化時の硬さが充分とはいえない。
【0003】
【発明が解決しようとする課題】
本発明は、増粘固化が自在に調節された化粧品組成物および化粧品を提供することを目的とする。
【0004】
【課題を解決するための手段】
上記課題を解決するため鋭意研究を行った結果、HLB3以下のポリグリセリン脂肪酸エステルおよび、炭素数20以上の脂肪酸と多価アルコールとのエステルを含有させることで上記課題を解決することを見出し本発明を完成した。
【0005】
【発明の実施の形態】
油脂の増粘固化は、HLB3以下のポリグリセリン脂肪酸エステル、および炭素数20以上の脂肪酸と多価アルコールとのエステルを併用することで高い効果を発揮する。それぞれ単体で使用した場合は効果が低いか、効果があらわれない。
本発明におけるポリグリセリン脂肪酸エステルは、HLBが3以下であれば特に限定するものではないが、重合度3以上のポリグリセリンと、ステアリン酸、ミリスチン酸、ベヘニン酸等の飽和脂肪酸から選ばれた1種または2種以上の脂肪酸を選んだものとのエステルが好ましい。これらのポリグリセリン脂肪酸エステルのうち、Griffinの式(式−1)
HLB=20×(1−SV/NV)
SV;エステルのケン化価
NV;脂肪酸の中和価
により算出したHLB値が3以下のもののみを使用する。HLBが3より大きなポリグリセリン脂肪酸エステルを用いた場合には、油脂に対する増粘固化の効果が低くなる傾向がある。
具体的にはトリグリセリンペンタステアレート、ヘキサグリセリンオクタミリステート、ペンタグリセリンヘプタオレート等をさすが、これらに限定するものではない。
炭素数20以上の脂肪酸と多価アルコールとのエステルとはプロピレングリコール、グリセリン、ソルビタン、ペンタエリスリトール、ジグリセリン等と脂肪酸のエステルである。脂肪酸はその炭素数が20以上であるアラキジン酸、ベヘニン酸等から1種または2種以上を原料として使用する。
具体的には、プロピレングリコールモノベヘニン酸エステル、グリセリンモノアラキジン酸エステル、ソルビタンジベヘニン酸エステル、ジグリセリンモノグノセリン酸エステル等があげられるが、好ましくはベヘニン酸エステル、さらに好ましくはグリセリンモノベヘニン酸エステルであるが、これに限定するものではない。炭素数20未満の脂肪酸のエステルを使用した場合は、増粘固化の効果が低くなる傾向がみられる。
【0006】
一方、本論でいう油脂とは例えばスクワラン、流動パラフィン、イソパラフィン、2−オクチルドデシルミリステート、シリコーンオイル等化粧品基剤として一般的に用いられるものが挙げられが、上記以外のものでも化粧品原料として使用されるものであれば含まれるものとする。
特に環状シリコーンオイルはべたつきがなく軽い使用感があり、皮膚や毛髪への広がりが良いうえ、体温でも揮発することから溶剤として適したものの一つとされている。最近化粧料用油脂の固化剤としてよく使用される脂肪酸デキストリンエステルはこの環状シリコーンオイルと相溶性が悪く、固化することができないが、本発明により環状シリコーンオイルの増粘固化もカバーできることとなる。
固化した油脂の硬度を機器分析により測定することで、効果の程度を比較することができる。硬度はレオロジー測定装置を用い、プランジャーで試料を押し下げていき試料が破断した時点でかかった負荷(破断強度)を測定する。レオロジー測定装置として(株)レオテックのレオメーターを用いたが、一般的に用いられているものであればこれに限らずどんな測定機器を用いてもかまわない。
HLB3以下のポリグリセリン脂肪酸エステル、および炭素数20以上の脂肪酸と多価アルコールとのエステルによる化粧料組成物の添加量は油脂に対して0.1〜20%、好ましくは0.5〜10%である。0.1%〜3%程度添加することで油脂は粘性を有する状態となる。添加量3%以上になると流動性はなくなり固化するが。10%以上では硬くて使用しづらくなる。
本発明の化粧品組成物および化粧品は特定の上記脂肪酸エステルを含有するもので、その含量、剤形等は適宜選択すればよく特に限定するものではない。HLB3以下のポリグリセリン脂肪酸エステルと、炭素数20以上の脂肪酸と多価アルコールのエステルの配合は配合比率を1:9〜9:1の範囲内で行う必要がある。上記の配合比率の範囲外で製造した場合には、油脂に対する増粘固化の効果が低くなる傾向がある。
本発明における化粧品とは口紅、油性ファンデーション、乳液等の油分を配合するあらゆる化粧品をさすものとする。尚、油脂への化粧料組成物の添加方法については特に限定するものではなく、油脂中に均一に溶解される方法であればよい。
以下、発明の実施の形態を実施例に基づき説明する。
【0007】
【実施例】
実施例1
ヘキサグリセリンオクタステアレート4gにグリセリンモノベヘニン酸エステル4gを加え90℃で、均一になるまで攪拌した。これを室温にて板状に冷却固化し化粧料組成物1を得た。尚、ここで用いたヘキサグリセリンオクタステアレートのHLBは式−1から2.56と算出される。
実施例2
デカグリセリンドデカパルミテート4gにプロピレングリコールモノベヘネート4gを加え、実施例1と同様の操作をし、化粧料用組成物2を得た。尚、ここで用いたデカグリセリンドデカパルミテートのHLBは式−1から2.88と算出される。
これらの化粧料用組成物を用いることで、化粧品用油脂の増粘固化が効果的に行える。化粧料用油脂の代表的なものとして環状シリコーンオイルと2−オクチルドデシルミリステートを用いて、増粘固化実験を行った。
試験例1
環状シリコーンオイル(東芝シリコーン(株)製商品名TSF−405)92gに実施例1の化粧料用組成物1を8g加え90℃で、均一になるまで攪拌した。これを20℃の恒温水槽で1時間冷却したところ、均質な油脂固形物が得られた。
試験例2
2−オクチルドデシルミリステート(花王(株)製 商品名エキセパールOD−M)92gに実施例2の化粧料用組成物2を8g加え、実施例1と同様の操作をしたところ、均質な油脂固形物が得られた。
【0008】
従来より用いられている固化剤として脂肪酸デキストリンエステル、ポリグリセリン脂肪酸エステルを例に挙げ比較した。
比較例1
実施例1で用いた環状シリコーンオイル92gに脂肪酸デキストリンエステル(千葉製粉(株)製 商品名レオパール)8gを加え、試験例1に記載の方法に従って油脂の固化を試みた。
比較例2
実施例1で用いた環状シリコーンオイル92部にデカグリセリンペンタステアレート8部を加え、試験例1に記載の方法に従って油脂の固化を試みた。
比較例3
実施例2で用いた2−オクチルドデシルパルミテート92gに脂肪酸デキストリンエステル(千葉製粉(株)製 商品名レオパール)8gを加え、試験例1に記載の方法に従って油脂の固化を試みた。
比較例4
実施例2で用いた2−オクチルドデシルパルミテート92gにデカグリセリンペンタステアレート8gを加え、試験例1に記載の方法に従って油脂の固化を試みた。その結果を表1に示す。
【0009】
【表1】

Figure 0004942877
【0010】
比較例1は、油脂と脂肪酸デキストリンエステルが加熱時に均一溶解せずに二層に分離した。
硬さ;◎=充分に硬い(破断強度 100g/cm以上)、○=硬い(100g/cm未満〜50g/cm以上)、△=柔らかい(50g/cm未満)、×=固化せず
なめらかさ(目視、触感による);◎=非常になめらか、○=なめらか、△=粗い、×=固化せず
【0011】
これら化粧料用組成物を含む化粧品の製造を試みた。
実施例3(口紅)
口紅を下記製法にて製造した。
Figure 0004942877
製造方法
成分(1)〜(4)を100℃に加熱・融解して均一に混ぜ、これに成分(5)〜(7)を加えてロールミルで練る。脱泡後、型に流し込み、急冷・固化させて口紅を得た。得られた口紅はのび、保形成に優れ、油のしみ出しの抑えられたものだった。
【0012】
比較例5
実施例1の化粧料用組成物1をデカグリセリンペンタステアレートに替え同様の操作を行なったが、十分な固化にはいたらず良好な性状とはならなかった。
【0013】
実施例3(油性ファンデーション)
ファンデーションを下記製法にて製造した。
Figure 0004942877
製造方法
成分(1)〜(6)を100℃に加熱・融解して均一に混ぜ、これに成分(7)〜(9)を加えてロールミルで練る。脱泡後、型に流し込み、急冷・固化させて油性ファンデーションを得た。得られたファンデーションはのび、保形成に優れ、油のしみ出しの抑えられたものだった。
【0014】
実施例4(クリーム)
クリームを下記製法にて製造した。
Figure 0004942877
製造方法
成分(1)〜(8)を100℃で加熱・混合して油相部を得た。また、成分(9)、(10)を加熱混合して水相部を得た。油相部に水相部を加えて予備乳化を行った後、ホモジナイザーにより乳化を行った。これを室温まで冷却し油性クリームを得た。得られた油性クリームは乳化安定性の良好な、優れた使用感のものであった。
【0015】
【発明の効果】
以上のように、本発明によって化粧品の基剤となる液状の油脂を増粘・固化させることができ、その程度は添加量により自由に制御できる。特に従来化粧品の固化に有用とされてきた脂肪酸デキストリンエステルではなしえなかった環状シリコーンオイルの固化も可能である。また、こうして増粘・固化させた油脂を化粧品に用いることで非常に安全性の高い、油のにじみ出しの抑えられた、乳化安定性のよい製品を製造することができ産業上極めて有益である。[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to a cosmetic composition and a cosmetic product that can be thickened and solidified freely by containing a polyglycerin fatty acid ester having an HLB of 3 or less and an ester of a fatty acid having 20 or more carbon atoms and a polyhydric alcohol.
[0002]
[Prior art]
Conventionally, in the field of cosmetics, fats and oils are thickened and solidified by using a metal soap (Japanese Patent Laid-Open No. 58-89261), a fatty acid dextrin ester (Japanese Patent Laid-Open No. 62-121764), an N-acylamino acid derivative (Japanese Patent Laid-Open No. 51-1913). Among them, fatty acid polyglycerin ester (Japanese Patent Laid-Open No. 60-108486) has been used as a safer material.
However, since metal soap is difficult to dissolve in fats and oils, it is necessary to add water or a lower alcohol as a solubilizing agent, which is not suitable for oily gels containing compounds that are unstable to water. Fatty acid dextrin ester forms a gel with good tactile sensation in a small amount, but is insoluble in some fats and oils such as cyclic silicone. Also, the N-acyl amino acid derivative was very expensive. And the method by addition of polyglycerin fatty acid ester alone cannot be said to have sufficient hardness during solidification.
[0003]
[Problems to be solved by the invention]
An object of this invention is to provide the cosmetic composition and cosmetics by which thickening and solidification was adjusted freely.
[0004]
[Means for Solving the Problems]
As a result of diligent research to solve the above-mentioned problems, it has been found that the above-mentioned problems can be solved by including a polyglycerin fatty acid ester having an HLB of 3 or less and an ester of a fatty acid having 20 or more carbon atoms and a polyhydric alcohol. Was completed.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
The thickening and solidification of fats and oils exhibits a high effect by using a polyglycerin fatty acid ester having an HLB of 3 or less and an ester of a fatty acid having 20 or more carbon atoms and a polyhydric alcohol in combination. When each is used alone, the effect is low or not effective.
The polyglycerin fatty acid ester in the present invention is not particularly limited as long as the HLB is 3 or less, but is selected from polyglycerin having a polymerization degree of 3 or more and saturated fatty acids such as stearic acid, myristic acid, and behenic acid. Esters with seeds or selected from two or more fatty acids are preferred. Of these polyglycerin fatty acid esters, Griffin's formula (Formula-1)
HLB = 20 × (1-SV / NV)
SV: Saponification value of ester NV: Only those having an HLB value calculated by neutralization value of fatty acid of 3 or less are used. When a polyglycerin fatty acid ester having an HLB greater than 3 is used, the effect of thickening and solidifying the oil and fat tends to be low.
Specific examples include triglycerin pentastearate, hexaglycerin octamyristate, and pentaglycerin heptaoleate, but are not limited thereto.
An ester of a fatty acid having 20 or more carbon atoms and a polyhydric alcohol is an ester of propylene glycol, glycerin, sorbitan, pentaerythritol, diglycerin or the like and a fatty acid. As the fatty acid, one or more fatty acids are used as raw materials from arachidic acid, behenic acid and the like having 20 or more carbon atoms.
Specific examples include propylene glycol monobehenic acid ester, glycerin monoarachidic acid ester, sorbitan dibehenic acid ester, diglycerin monognoceric acid ester, etc., preferably behenic acid ester, more preferably glycerin. Although it is monobehenic acid ester, it is not limited to this. When an ester of a fatty acid having less than 20 carbon atoms is used, the effect of thickening and solidifying tends to be reduced.
[0006]
On the other hand, the oils and fats referred to in this paper include those commonly used as cosmetic bases such as squalane, liquid paraffin, isoparaffin, 2-octyldodecyl myristate and silicone oil. If included, it shall be included.
In particular, the cyclic silicone oil has no stickiness, has a light feeling of use, spreads well on the skin and hair, and volatilizes even at body temperature. Fatty acid dextrin ester which is often used recently as a solidifying agent for cosmetic fats and oils is not compatible with this cyclic silicone oil and cannot be solidified, but the present invention can also cover the thickening and solidification of cyclic silicone oil.
The degree of the effect can be compared by measuring the hardness of the solidified fat by instrumental analysis. The hardness is measured by using a rheology measuring device and pushing down the sample with a plunger and measuring the load (breaking strength) applied when the sample broke. Although a rheometer manufactured by Rheotech Co., Ltd. was used as a rheology measuring device, any measuring device may be used as long as it is generally used.
The addition amount of the cosmetic composition by HLB3 or less polyglycerin fatty acid ester and ester of fatty acid having 20 or more carbon atoms and polyhydric alcohol is 0.1 to 20%, preferably 0.5 to 10% with respect to fats and oils. It is. By adding about 0.1% to 3%, the fats and oils become viscous. If the added amount is 3% or more, the fluidity disappears and solidifies. If it is 10% or more, it is hard and difficult to use.
The cosmetic composition and cosmetics of the present invention contain the specific fatty acid ester, and the content, dosage form and the like may be appropriately selected and are not particularly limited. It is necessary to blend the polyglycerin fatty acid ester having an HLB of 3 or less, the fatty acid having 20 or more carbon atoms and the ester of the polyhydric alcohol within a blending ratio of 1: 9 to 9: 1. When it manufactures outside the range of said compounding ratio, there exists a tendency for the effect of thickening and solidifying with respect to fats and oils to become low.
The cosmetics in the present invention refer to all cosmetics containing oils such as lipsticks, oily foundations, and emulsions. In addition, it does not specifically limit about the addition method of the cosmetics composition to fats and oils, What is necessary is just the method melt | dissolved in fats and oils uniformly.
Hereinafter, embodiments of the invention will be described based on examples.
[0007]
【Example】
Example 1
4 g of glycerol monobehenate was added to 4 g of hexaglycerin octastearate, and the mixture was stirred at 90 ° C. until uniform. This was cooled and solidified into a plate shape at room temperature to obtain a cosmetic composition 1. In addition, HLB of the hexaglycerin octastearate used here is calculated with Formula-1 to 2.56.
Example 2
4 g of propylene glycol monobehenate was added to 4 g of decaglycerin dodecapalmitate, and the same operation as in Example 1 was performed to obtain a cosmetic composition 2. In addition, HLB of decaglycerin dodecapalmitate used here is calculated with Formula-1 to 2.88.
By using these cosmetic compositions, it is possible to effectively thicken and solidify cosmetic fats and oils. Using a cyclic silicone oil and 2-octyldodecyl myristate as a representative cosmetic fat, a thickening and solidification experiment was conducted.
Test example 1
8 g of the cosmetic composition 1 of Example 1 was added to 92 g of cyclic silicone oil (trade name TSF-405, manufactured by Toshiba Silicone Co., Ltd.), and the mixture was stirred at 90 ° C. until uniform. When this was cooled in a constant temperature water bath at 20 ° C. for 1 hour, a homogeneous oily solid was obtained.
Test example 2
When 8 g of the cosmetic composition 2 of Example 2 was added to 92 g of 2-octyldodecyl myristate (trade name EXCEPARL OD-M, manufactured by Kao Corporation) and the same operation as in Example 1 was performed, a homogeneous oily solid was obtained. Things were obtained.
[0008]
Fatty acid dextrin esters and polyglycerin fatty acid esters have been exemplified and compared as conventional solidifying agents.
Comparative Example 1
8 g of fatty acid dextrin ester (trade name Leopard, manufactured by Chiba Flour Milling Co., Ltd.) was added to 92 g of the cyclic silicone oil used in Example 1, and solidification of fats and oils was attempted according to the method described in Test Example 1.
Comparative Example 2
8 parts of decaglycerin pentastearate was added to 92 parts of the cyclic silicone oil used in Example 1, and solidification of the fats and oils was attempted according to the method described in Test Example 1.
Comparative Example 3
8 g of fatty acid dextrin ester (trade name Leopard, manufactured by Chiba Flour Milling Co., Ltd.) was added to 92 g of 2-octyldodecyl palmitate used in Example 2, and solidification of fats and oils was attempted according to the method described in Test Example 1.
Comparative Example 4
8 g of decaglycerin pentastearate was added to 92 g of 2-octyldodecyl palmitate used in Example 2, and solidification of fats and oils was attempted according to the method described in Test Example 1. The results are shown in Table 1.
[0009]
[Table 1]
Figure 0004942877
[0010]
In Comparative Example 1, the fat and fatty acid dextrin ester was separated into two layers without being uniformly dissolved during heating.
Hardness; ◎ = sufficiently rigid (breaking strength 100 g / cm 2 or more), ○ = hard (100 g / cm 2 less than to 50 g / cm 2 or more), △ = (less than 50 g / cm 2) Soft, × = solidifying Smoothness (by visual and tactile sensation); ◎ = very smooth, ○ = smooth, △ = rough, × = not solidified
Attempts were made to produce cosmetics containing these cosmetic compositions.
Example 3 (lipstick)
Lipstick was produced by the following method.
Figure 0004942877
Manufacturing method Components (1) to (4) are heated and melted at 100 ° C. and mixed uniformly, and then components (5) to (7) are added thereto and kneaded with a roll mill. After defoaming, it was poured into a mold, rapidly cooled and solidified to obtain a lipstick. The obtained lipstick was excellent in spreading and preserving, and oil exudation was suppressed.
[0012]
Comparative Example 5
The cosmetic composition 1 of Example 1 was replaced with decaglycerin pentastearate, and the same operation was carried out. However, the composition was not sufficiently solidified and did not have good properties.
[0013]
Example 3 (oil-based foundation)
The foundation was manufactured by the following manufacturing method.
Figure 0004942877
Manufacturing method Components (1) to (6) are heated and melted at 100 ° C. and mixed uniformly, and then components (7) to (9) are added thereto and kneaded with a roll mill. After defoaming, it was poured into a mold and rapidly cooled and solidified to obtain an oily foundation. The obtained foundation was excellent in spreading and preserving and suppressing oil exudation.
[0014]
Example 4 (Cream)
The cream was manufactured by the following manufacturing method.
Figure 0004942877
Manufacturing method component (1)-(8) was heated and mixed at 100 degreeC, and the oil phase part was obtained. In addition, components (9) and (10) were mixed by heating to obtain an aqueous phase part. The water phase part was added to the oil phase part and preliminary emulsification was performed, followed by emulsification with a homogenizer. This was cooled to room temperature to obtain an oily cream. The obtained oily cream had good emulsification stability and excellent usability.
[0015]
【Effect of the invention】
As described above, according to the present invention, it is possible to thicken and solidify a liquid fat that is a base for cosmetics, and the degree thereof can be freely controlled by the amount of addition. In particular, it is possible to solidify cyclic silicone oils that could not be achieved with fatty acid dextrin esters that have been useful for solidifying conventional cosmetics. In addition, by using the thickened and solidified fats and oils in cosmetics, it is possible to produce highly safe products with reduced oil bleeding and good emulsification stability, which is extremely beneficial to the industry. .

Claims (2)

環状シリコーンオイルにHLB3以下のポリグリセリン脂肪酸エステルおよび、炭素数20以上の脂肪酸と多価アルコールとのエステルを含有させることを特徴とする化粧料組成物。  A cosmetic composition comprising a cyclic silicone oil containing a polyglycerin fatty acid ester having an HLB of 3 or less and an ester of a fatty acid having 20 or more carbon atoms and a polyhydric alcohol. 環状シリコーンオイルと、HLB3以下のポリグリセリン脂肪酸エステルおよび、炭素数20以上の脂肪酸と多価アルコールとのエステルを含有することを特徴とする化粧品。  A cosmetic comprising a cyclic silicone oil, a polyglycerin fatty acid ester having an HLB of 3 or less, and an ester of a fatty acid having 20 or more carbon atoms and a polyhydric alcohol.
JP2001019970A 2001-01-29 2001-01-29 Cosmetics Expired - Lifetime JP4942877B2 (en)

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