JP6081097B2 - Oil-in-water emulsion composition - Google Patents
Oil-in-water emulsion composition Download PDFInfo
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- JP6081097B2 JP6081097B2 JP2012172498A JP2012172498A JP6081097B2 JP 6081097 B2 JP6081097 B2 JP 6081097B2 JP 2012172498 A JP2012172498 A JP 2012172498A JP 2012172498 A JP2012172498 A JP 2012172498A JP 6081097 B2 JP6081097 B2 JP 6081097B2
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- oil
- component
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- emulsion composition
- Prior art date
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- 239000000203 mixture Substances 0.000 title claims description 56
- 239000007764 o/w emulsion Substances 0.000 title claims description 35
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 17
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- 239000002736 nonionic surfactant Substances 0.000 claims description 12
- 235000014121 butter Nutrition 0.000 claims description 11
- 239000000284 extract Substances 0.000 claims description 11
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000000839 emulsion Substances 0.000 claims description 7
- 235000004936 Bromus mango Nutrition 0.000 claims description 6
- 240000007228 Mangifera indica Species 0.000 claims description 6
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- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 5
- NCHJGQKLPRTMAO-XWVZOOPGSA-N [(2R)-2-[(2R,3R,4S)-3,4-dihydroxyoxolan-2-yl]-2-hydroxyethyl] 16-methylheptadecanoate Chemical compound CC(C)CCCCCCCCCCCCCCC(=O)OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O NCHJGQKLPRTMAO-XWVZOOPGSA-N 0.000 description 5
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- 238000007711 solidification Methods 0.000 description 4
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- DUXYWXYOBMKGIN-UHFFFAOYSA-N trimyristin Chemical compound CCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCC DUXYWXYOBMKGIN-UHFFFAOYSA-N 0.000 description 4
- CUNWUEBNSZSNRX-RKGWDQTMSA-N (2r,3r,4r,5s)-hexane-1,2,3,4,5,6-hexol;(z)-octadec-9-enoic acid Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O.CCCCCCCC\C=C/CCCCCCCC(O)=O CUNWUEBNSZSNRX-RKGWDQTMSA-N 0.000 description 3
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical compound OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 3
- ZORQXIQZAOLNGE-UHFFFAOYSA-N 1,1-difluorocyclohexane Chemical compound FC1(F)CCCCC1 ZORQXIQZAOLNGE-UHFFFAOYSA-N 0.000 description 3
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- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
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- 239000007788 liquid Substances 0.000 description 3
- 239000006210 lotion Substances 0.000 description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 3
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- MXOAEAUPQDYUQM-QMMMGPOBSA-N (S)-chlorphenesin Chemical compound OC[C@H](O)COC1=CC=C(Cl)C=C1 MXOAEAUPQDYUQM-QMMMGPOBSA-N 0.000 description 2
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- RKJGFHYCZPZJPE-UHFFFAOYSA-N 2,2-bis(16-methylheptadecanoyloxymethyl)butyl 16-methylheptadecanoate Chemical compound CC(C)CCCCCCCCCCCCCCC(=O)OCC(CC)(COC(=O)CCCCCCCCCCCCCCC(C)C)COC(=O)CCCCCCCCCCCCCCC(C)C RKJGFHYCZPZJPE-UHFFFAOYSA-N 0.000 description 2
- ASKIVFGGGGIGKH-UHFFFAOYSA-N 2,3-dihydroxypropyl 16-methylheptadecanoate Chemical compound CC(C)CCCCCCCCCCCCCCC(=O)OCC(O)CO ASKIVFGGGGIGKH-UHFFFAOYSA-N 0.000 description 2
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- 235000021314 Palmitic acid Nutrition 0.000 description 2
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- PHYFQTYBJUILEZ-UHFFFAOYSA-N Trioleoylglycerol Natural products CCCCCCCCC=CCCCCCCCC(=O)OCC(OC(=O)CCCCCCCC=CCCCCCCCC)COC(=O)CCCCCCCC=CCCCCCCCC PHYFQTYBJUILEZ-UHFFFAOYSA-N 0.000 description 2
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Description
本発明は、感触及び経時安定性に優れた水中油型乳化組成物に関する。 The present invention relates to an oil-in-water emulsion composition having excellent feel and stability over time.
アクリル酸系高分子や多糖系高分子等の高分子化合物は、乳化型組成物の保存安定性の向上や感触調整に重要な成分である。しかし、これらの効果を十分に得るべく高分子化合物をあまり多量に配合すると使用感触のベタツキ、塗布時の高分子カスの析出につながり、一方、少量では満足できる保存安定性や意図した感触が得られないといった問題があった。 Polymer compounds such as acrylic acid polymers and polysaccharide polymers are important components for improving the storage stability of the emulsion-type composition and adjusting the feel. However, if a large amount of the polymer compound is added in order to obtain these effects sufficiently, the feeling of use becomes sticky and the polymer residue is deposited at the time of application. On the other hand, with a small amount, satisfactory storage stability and intended feel can be obtained. There was a problem that it was not possible.
また、界面活性剤や高級アルコール等を用いて良好な保存安定性及び乳化状態を得ようとした組成物も報告されている（特許文献１参照）。しかし、この組成物では、配合した油剤などの添加剤が本来もつ感触を界面活性剤や界面活性剤と高級アルコール等で形成された構造体が妨げることで、目的とする感触が感じられない、または十分な感触を得るには大量に添加剤を配合しなければいけない等の問題があった。 There has also been reported a composition for obtaining good storage stability and an emulsified state using a surfactant, a higher alcohol or the like (see Patent Document 1). However, in this composition, the structure formed by a surfactant or a surfactant and a higher alcohol or the like prevents the original feel of an additive such as a blended oil agent, so that the desired feel cannot be felt. Or there was a problem that a large amount of additives had to be blended to obtain a sufficient feel.
一方、キサンタンガムと低分子量寒天混合物を含有した、安定性に優れ、ベタツキ、塗布時の高分子カスの析出のない皮膚外用組成物が提案されている（特許文献２参照）。 On the other hand, an external composition for skin containing xanthan gum and a low molecular weight agar mixture, which is excellent in stability, has no stickiness, and does not precipitate polymer waste during application has been proposed (see Patent Document 2).
しかしながら、キサンタンガム及び低分子量寒天混合物を水中油型乳化組成物に用いた場合、経時安定性が低下する場合があり、また、感触面においても配合した添加剤の良好な感触が感じられにくいという課題があることが判明した。
従って、本発明の課題は、キサンタンガム及び低分子量寒天を含有し、経時安定性及び感触に優れた水中油型乳化組成物を提供することにある。
However, when xanthan gum and a low molecular weight agar mixture are used in an oil-in-water emulsion composition, the stability over time may be reduced, and the good feel of the blended additive is difficult to feel on the touch surface as well. Turned out to be.
Accordingly, an object of the present invention is to provide an oil-in-water emulsion composition containing xanthan gum and low molecular weight agar and having excellent stability over time and feel.
そこで本発明者は、キサンタンガム及び低分子量寒天を含有する組成物において、添加剤の使用感を妨げず、且つ良好な保存安定性を両立させる成分について種々検討した結果、乳化剤として低ＨＬＢの界面活性剤を使用し、油剤として高級アルコールと他の油剤とを一定量併用することにより、添加した油剤の使用感が良好で、かつ保存安定性に優れた水中油型乳化組成物が得られることを見出した。 Therefore, the present inventor has conducted various studies on components that do not interfere with the feeling of use of the additive in the composition containing xanthan gum and low molecular weight agar, and have both good storage stability. As a result, the surfactant has a low HLB surface activity. The oil-in-water emulsified composition with good usability of the added oil and excellent storage stability can be obtained by using a constant amount of higher alcohol and other oils in combination. I found it.
すなわち、本発明は、次の成分（Ａ）〜（Ｅ）、
（Ａ）キサンタンガム、
（Ｂ）質量平均分子量１００００以上、６００００以下の寒天、
（Ｃ）ＨＬＢ６以下のノニオン性界面活性剤（但し、２種以上の界面活性剤を用いる場合は、混合ＨＬＢは６以下）、
（Ｄ）油剤（成分（Ｅ）は除く） １〜２５質量％、及び
（Ｅ）高級アルコール ０．０５〜２．５質量％
を含有し、成分（Ａ）と成分（Ｂ）の合計含有量が０．０１〜１．８質量％であり、成分（Ａ）と成分（Ｂ）の含有質量比（Ａ：Ｂ）が６：４〜２：８である水中油型乳化組成物を提供するものである。
That is, the present invention includes the following components (A) to (E),
(A) xanthan gum,
(B) Agar having a mass average molecular weight of 10,000 or more and 60000 or less,
(C) Nonionic surfactant having an HLB of 6 or less (however, when two or more surfactants are used, the mixed HLB is 6 or less),
(D) Oil agent (excluding component (E)) 1 to 25% by mass, and (E) higher alcohol 0.05 to 2.5% by mass
The total content of component (A) and component (B) is 0.01 to 1.8% by mass, and the content ratio (A: B) of component (A) and component (B) is 6 : The oil-in-water emulsion composition which is 4: 2: 8 is provided.
本発明の水中油型乳化組成物は、油剤等の添加剤が有する感触を阻害せず、良好な保存安定性を有するものである。 The oil-in-water emulsified composition of the present invention does not inhibit the feel of additives such as oils and has good storage stability.
本発明に用いられる（Ａ）キサンタンガムは、Xanthomonas campestrisが産生する多糖類であって、増粘剤として化粧品、食品、その他の分野で広く用いられている。当該キサンタンガムの市販品としては、例えば、日清オイリオグループ社製「ノムコートＺ」「ノムコートＺＺ」等が好適に用いられる。 (A) Xanthan gum used in the present invention is a polysaccharide produced by Xanthomonas campestris, and is widely used as a thickener in cosmetics, foods, and other fields. As a commercially available product of the xanthan gum, for example, “NOMCOAT Z” “NOMCOAT ZZ” manufactured by Nisshin Oillio Group Co., Ltd. is preferably used.
本発明に用いられる（Ｂ）質量平均分子量（Ｍｗ）１００００以上、６００００以下の寒天（以下、「低分子量寒天」ということがある。）は、安定性及び感触の点から、質量平均分子量が１００００以上、６００００以下であることが必要であり、下限は好ましくは２００００以上、より好ましくは３００００以上、さらに好ましくは４３０００以上である。 The (B) mass-average molecular weight (Mw) of 10,000 to 60,000 agar (hereinafter sometimes referred to as “low-molecular-weight agar”) used in the present invention has a mass-average molecular weight of 10,000 from the viewpoint of stability and feel. As mentioned above, it is necessary to be 60000 or less, and the lower limit is preferably 20000 or more, more preferably 30000 or more, and further preferably 43000 or more.
本発明に用いられる（Ｂ）低分子量寒天は、分子量分布が狭いものが好ましく、分子量分布を示すＭｗ／Ｍｎの値は、下限は好ましくは１．１以上、より好ましくは１．５以上、さらに好ましくは２．０以上、さらに好ましくは２．５以上であり、上限は好ましくは８．０以下、より好ましくは７．０以下、さらに好ましくは６．０以下、さらに好ましくは５．５である。具体的には、１．１〜８．０であることが好ましく、１．５〜７．０であることがより好ましく、２．０〜６．０であることがさらに好ましく、２．５〜５．５であることがさらに好ましい。ここでＭｎは数平均分子量である。 The (B) low molecular weight agar used in the present invention preferably has a narrow molecular weight distribution, and the lower limit of the Mw / Mn value indicating the molecular weight distribution is preferably 1.1 or more, more preferably 1.5 or more, The upper limit is preferably 8.0 or less, more preferably 7.0 or less, still more preferably 6.0 or less, and even more preferably 5.5. . Specifically, it is preferably 1.1 to 8.0, more preferably 1.5 to 7.0, still more preferably 2.0 to 6.0, and 2.5 to More preferably, it is 5.5. Here, Mn is the number average molecular weight.
このような（Ｂ）低分子量寒天は、特許文献２記載の方法によって得ることができ、市販されている伊那食品工業社製「イーナ」等を用いることもできる。 Such (B) low molecular weight agar can be obtained by the method described in Patent Document 2, and commercially available “Ina” manufactured by Ina Food Industry Co., Ltd. can also be used.
本発明の水中油型乳化組成物中の成分（Ａ）と成分（Ｂ）の合計含有量は、安定な水中油型乳化系を得る点、刺激性の点から０．０１〜１．８質量％であることが必要である。当該合計含有量は、０．１質量％以上が好ましく、０．５質量％以上がより好ましく、また１．５質量％以下が好ましく、１質量％以下がより好ましい。具体的には０．１〜１．５質量％が好ましく、０．５〜１質量％がより好ましい。 The total content of the component (A) and the component (B) in the oil-in-water emulsion composition of the present invention is 0.01 to 1.8 mass from the viewpoint of obtaining a stable oil-in-water emulsion system and irritation. %. The total content is preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and preferably 1.5% by mass or less, more preferably 1% by mass or less. Specifically, 0.1 to 1.5% by mass is preferable, and 0.5 to 1% by mass is more preferable.
成分（Ａ）と成分（Ｂ）の含有質量比（Ａ：Ｂ）は、感触及び安定性の点から、６：４〜２：８であることが必要である。また、含有質量比（Ａ：Ｂ）は５：５〜３：７が好ましく、４：６〜３：７がより好ましい。 The content mass ratio (A: B) of the component (A) and the component (B) needs to be 6: 4 to 2: 8 from the viewpoint of feel and stability. Further, the content mass ratio (A: B) is preferably 5: 5 to 3: 7, and more preferably 4: 6 to 3: 7.
成分（Ａ）及び成分（Ｂ）は、上記の含有量及び含有比になるように配合すればよいが、成分（Ａ）と成分（Ｂ）が前記含有比で予め混合された市販品を使用してもよい。そのような市販品としては、ノムコートＡＧ（日清オイリオグループ（株））等が挙げられる。 The component (A) and the component (B) may be blended so as to have the above content and content ratio, but a commercially available product in which the component (A) and the component (B) are mixed in advance at the content ratio is used. May be. Examples of such commercially available products include Nom Coat AG (Nisshin Oilio Group Co., Ltd.).
本発明の水中油型乳化組成物に用いられる（Ｃ）ＨＬＢ６以下のノニオン性界面活性剤は、ＨＬＢ値が低いため、一般的に油中水型乳化組成物の乳化剤として用いられているものであるが、全く意外にも、（Ａ）キサンタンガム及び（Ｂ）低分子量寒天と併用することで、安定な水中油型乳化組成物を得ることができた。 The nonionic surfactant (C) HLB 6 or less used in the oil-in-water emulsion composition of the present invention has a low HLB value and is generally used as an emulsifier for a water-in-oil emulsion composition. However, it was quite surprising that a stable oil-in-water emulsion composition could be obtained by using together with (A) xanthan gum and (B) low molecular weight agar.
ＨＬＢ値とは、油−水系で界面活性剤の両液体に対する相対的親和力の比を表す指標であり、グリフィン（ＧＲＩＦＦＩＮ）の定義による、２５℃におけるＨＬＢ値を意味する。グリフィンによるＨＬＢ値は、Ｊ．Ｓｏｃ．Ｃｏｓｍ．Ｃｈｅｍ．，１９５４，５：２４９−２５６において定義されている。
一般にＨＬＢ値の小さいもの（特にＨＬＢ３〜６程度）は油に対する親和性が高く、親油性を示し、油中水型乳化組成物を生成させる傾向にある。ＨＬＢ値の高いもの（特にＨＬＢ８〜１８程度）は親水性が高く、水中油型乳化組成物を生成させる傾向にある。
The HLB value is an index representing the ratio of the relative affinity of a surfactant to both liquids in an oil-water system, and means the HLB value at 25 ° C. according to the definition of griffin. The HLB value by Griffin is described in J. Soc. Cosm. Chem. 1954, 5: 249-256.
In general, those having a small HLB value (particularly about HLB 3 to 6) have a high affinity for oil, show lipophilicity, and tend to produce a water-in-oil emulsion composition. Those having a high HLB value (particularly about HLB 8 to 18) are highly hydrophilic and tend to produce an oil-in-water emulsion composition.
本発明のＨＬＢが６以下のノニオン性界面活性剤としては、例えばグリセリン脂肪酸エステル、ソルビタン脂肪酸エステル、ポリグリセリン脂肪酸エステル及びショ糖脂肪酸エステル等のポリオキシエチレン鎖を持たないノニオン性界面活性剤から選択される１種又は２種以上が挙げられる。これら成分（Ｂ）のノニオン性界面活性剤の脂肪酸部分の炭素数の下限は乳化安定性、使用感の点から、８以上が好ましく、１２以上がより好ましく、上限は２４以下が好ましく、２２以下が好ましい。具体的には８〜２４が好ましく、１２〜２２がより好ましい。 The nonionic surfactant having an HLB of 6 or less of the present invention is selected from nonionic surfactants having no polyoxyethylene chain such as glycerin fatty acid ester, sorbitan fatty acid ester, polyglycerin fatty acid ester and sucrose fatty acid ester. 1 type or 2 types or more to be mentioned. The lower limit of the carbon number of the fatty acid moiety of the nonionic surfactant of these components (B) is preferably 8 or more, more preferably 12 or more, and the upper limit is preferably 24 or less, preferably 22 or less, from the viewpoint of emulsion stability and usability. Is preferred. Specifically, 8-24 are preferable and 12-22 are more preferable.
これらのうち、ステアリン酸グリセリル、オレイン酸グリセリル、イソステアリン酸グリセリル、パルミチン酸グリセリル等のグリセリン脂肪酸エステル、モノステアリン酸ソルビタン、モノイソステアリン酸ソルビタン、セスキイソステアリン酸ソルビタン、セスキオレイン酸ソルビタン、モノオレイン酸ソルビタン、トリオレイン酸ソルビタン等のソルビタン脂肪酸エステル及びショ糖ジオレイン酸エステル、ショ糖ジステアリン酸エステル、ショ糖ジパルミチン酸エステル、ショ糖ジミリスチン酸エステル、ショ糖ジラウリン酸エステル、ショ糖モノオレイン酸エステル、ショ糖モノステアリン酸エステル、ショ糖モノパルミチン酸エステル、ショ糖モノミリスチン酸エステル、ショ糖モノラウリン酸エステル等のショ糖脂肪酸エステルから選択される１種又は２種以上が好ましく用いられ、中でも、使用感及び保存安定性が一層向上することから、ソルビタン脂肪酸エステルが好ましく用いられる。これらは、いずれか１種を単独で使用することもでき、また２種以上を組み合わせて使用することもできる。 Among these, glyceryl fatty acid esters such as glyceryl stearate, glyceryl oleate, glyceryl isostearate, glyceryl palmitate, sorbitan monostearate, sorbitan monoisostearate, sorbitan sesquiisostearate, sorbitan sesquioleate, sorbitan monooleate, Sorbitan fatty acid esters such as sorbitan trioleate and sucrose dioleate, sucrose distearate, sucrose dipalmitate, sucrose dimyristate, sucrose dilaurate, sucrose monooleate, sucrose Sucrose fatty acid esters such as sugar monostearate, sucrose monopalmitate, sucrose monomyristate, and sucrose monolaurate One or more selected from are preferably used, among others, since the feeling and storage stability is further improved, sorbitan fatty acid esters are preferably used. Any one of these can be used alone, or two or more of these can be used in combination.
ソルビタン脂肪酸エステルとしては、例えばモノステアリン酸ソルビタン（ＨＬＢ＝４．７）、モノイソステアリン酸ソルビタン（ＨＬＢ＝５）、セスキイソステアリン酸ソルビタン（ＨＬＢ＝４．５）、セスキオレイン酸ソルビタン（ＨＬＢ＝３．７）、モノオレイン酸ソルビタン（ＨＬＢ＝４．７）及びトリオレイン酸ソルビタン（ＨＬＢ＝１．７）からなる群から選択される１種又は２種以上が挙げられる。 Examples of sorbitan fatty acid esters include sorbitan monostearate (HLB = 4.7), sorbitan monoisostearate (HLB = 5), sorbitan sesquiisostearate (HLB = 4.5), and sorbitan sesquioleate (HLB = 3. 7), 1 type, or 2 or more types selected from the group consisting of sorbitan monooleate (HLB = 4.7) and sorbitan trioleate (HLB = 1.7).
これらのソルビタン脂肪酸エステルのうち、安定な水中油型乳化系を得る点から、ＨＬＢが１〜６の炭素数１２〜２２の直鎖脂肪酸基又は分岐脂肪酸基を有するソルビタン脂肪酸エステルが好ましく、より好ましくはＨＬＢが３〜５．５で、炭素数が１５〜２０の分岐脂肪酸基を有するソルビタン脂肪酸エステルであり、モノイソステアリン酸ソルビタン（ＨＬＢ＝５）、セスキイソステアリン酸ソルビタン（ＨＬＢ＝４．５）、セスキオレイン酸ソルビタン（ＨＬＢ＝３．７）及びモノオレイン酸ソルビタン（ＨＬＢ４．７）からなる群から選択される１種又は２種以上が好適に挙げられる。 Among these sorbitan fatty acid esters, a sorbitan fatty acid ester having a linear fatty acid group having 12 to 22 carbon atoms having 1 to 6 HLB or a branched fatty acid group is preferable, more preferable, from the viewpoint of obtaining a stable oil-in-water emulsion system. Is a sorbitan fatty acid ester having a branched fatty acid group having a HLB of 3 to 5.5 and a carbon number of 15 to 20, sorbitan monoisostearate (HLB = 5), sorbitan sesquiisostearate (HLB = 4.5), One or more types selected from the group consisting of sorbitan sesquioleate (HLB = 3.7) and sorbitan monooleate (HLB4.7) are preferred.
本発明の水中油型乳化組成物中の成分（Ｃ）の含有量は、安定な水中油型乳化系を得る点、刺激性の点から、０．０１質量％以上が好ましく、０．１質量％以上がより好ましく、０．５質量％以上がさらに好ましく、また１０質量％以下が好ましく、５質量％以下がより好ましく、３質量％以下がさらに好ましい。具体的には０．０１〜１０質量％が好ましく、０．１〜５質量％がより好ましく、０．５〜３質量％がさらに好ましい。 The content of the component (C) in the oil-in-water emulsion composition of the present invention is preferably 0.01% by mass or more from the viewpoint of obtaining a stable oil-in-water emulsion system and irritation, and 0.1% by mass. % Or more is more preferable, 0.5 mass% or more is more preferable, 10 mass% or less is preferable, 5 mass% or less is more preferable, and 3 mass% or less is further more preferable. Specifically, 0.01 to 10% by mass is preferable, 0.1 to 5% by mass is more preferable, and 0.5 to 3% by mass is more preferable.
２種以上のノニオン性界面活性剤を用いる場合、混合ＨＬＢが６以下であれば、前記（Ｃ）ＨＬＢが６以下の界面活性剤以外の界面活性剤も用いることができる。好ましい混合ＨＬＢとしては、下限は１以上が好ましく、より好ましくは３以上であり、上限は５．５以下が好ましい。具体的には１〜６であり、より好ましくは３〜５．５である。 When using 2 or more types of nonionic surfactant, if mixed HLB is 6 or less, surfactants other than the said (C) surfactant whose HLB is 6 or less can also be used. As a preferable mixed HLB, the lower limit is preferably 1 or more, more preferably 3 or more, and the upper limit is preferably 5.5 or less. Specifically, it is 1-6, More preferably, it is 3-5.5.
ここで、２種以上の界面活性剤から構成される混合界面活性剤の混合ＨＬＢは、次のようにして求められる。混合界面活性剤の混合ＨＬＢは、各界面活性剤のＨＬＢ値をその配合比率に基づいて相加算平均したものである。
混合ＨＬＢ＝Σ（ＨＬＢｘ×Ｗｘ）／ΣＷｘ
ＨＬＢｘは、界面活性剤ＸのＨＬＢ値を示す。
Ｗｘは、ＨＬＢｘの値を有する界面活性剤Ｘの質量（ｇ）を示す。
Here, the mixed HLB of the mixed surfactant composed of two or more surfactants is obtained as follows. The mixed HLB of the mixed surfactant is obtained by averaging the HLB values of the respective surfactants based on the blending ratio.
Mixed HLB = Σ (HLBx × Wx) / ΣWx
HLBx indicates the HLB value of surfactant X.
Wx represents the mass (g) of the surfactant X having a value of HLBx.
本発明に用いられる（Ｄ）油剤としては、化粧品、医薬品用原料として市販されているものであれば特に限定されないが、例えばオリーブ油、マカデミアナッツ油、メドウフォーム油、ヒマシ油、紅花油、ヒマワリ油、アボカド油、キャノーラ油、キョウニン油、米胚芽油、米糠油、ホホバ油、シア脂、マンゴーバター、アルガンオイル、ムルムルバターなどの植物油；トリアセチルヒドロキシステアリン酸グリセリル、トリアセチルリシノール酸グリセリル、トリイソパルミチン酸グリセリル、トリイソステアリン酸グリセリル、トリウンデカン酸グリセリル、トリヒドロキシステアリン酸グリセリル、トリオレイン酸グリセリル、トリ（カプリル・カプリン・イソステアリン・アジピン酸）グリセリル、トリ（カプリル・カプリン酸）グリセリル、トリ（カプリル・カプリン・ミリスチン・ステアリン酸）グリセリル、トリ（カプリル・カプリン・ラウリン酸）グリセリル、トリ（カプリル・カプリン・リノール酸）グリセリル、トリカプリン酸グリセリル、トリ牛脂脂肪酸グリセリル、トリ（牛脂脂肪酸・ミンク油脂肪酸・タラ肝油脂肪酸）グリセリル、トリミリスチン酸グリセリル、トリステアリン酸グリセリル、トリパルミチン酸グリセリル、トリ２−ヘプチルウンデカン酸グリセリル、トリベヘン酸グリセリル、トリ（ミンク油脂肪酸・パルミチン酸）グリセリル、トリヤシ油脂肪酸グリセリル、トリラウリン酸グリセリル、トリラノリン脂肪酸グリセリル、トリ（リシノレイン・カプロン・カプリル・カプリン酸）グリセリル、トリリノール酸グリセリル等の合成トリグリセリド；オリーブスクワラン、米スクワラン、サメスクワランなどのスクワラン；ジメチルポリシロキサン、環状シリコーン等のシリコーン油；パラフィン、流動パラフィン、ワセリン、オレフィンオリゴマー等の炭化水素類；ミツロウ、モクロウ、カルナバロウ等のロウ類；ミリスチン酸イソプロピル、オクタン酸セチル、ミリスチン酸オクチルドデシル、パルミチン酸イソプロピル、ステアリン酸ブチル、ラウリン酸ヘキシル、ミリスチン酸ミリスチル、オレイン酸デシル、ジメチルオクタン酸ヘキシルデシル、乳酸セチル、乳酸ミリスチル、酢酸ラノリン、ステアリン酸イソセチル、イソステアリン酸イソセチル、１２−ヒドロキシステアリル酸コレステリル、ジ２−エチルヘキサン酸エチレングリコール、ジペンタエリスリトール脂肪酸エステル、モノイソステアリン酸ｎ−アルキルグリコール、ジカプリン酸ネオペンチルグリコール、リンゴ酸ジイソステアリル、ジ２−ヘプチルウンデカン酸グリセリン、トリ２−エチルヘキサン酸トリメチロールプロパン、トリイソステアリン酸トリメチロールプロパン、テトラ２−エチルヘキサン酸ペンタエリスリット、トリ２−エチルヘキサン酸グリセリル、トリイソステアリン酸トリメチロールプロパン、セチル２−エチルヘキサノエート、２−エチルヘキシルパルミテート、ナフタリンジカルボン酸ジエチルヘキシル、安息香酸（炭素数１２〜１５）アルキル、セテアリルイソノナノエート、（ジカプリル酸／カプリン酸）ブチレングリコール、ヒマシ油脂肪酸メチルエステル、オレイン酸オレイル、パルミチン酸２−ヘプチルウンデシル、アジピン酸ジイソブチル、Ｎ−ラウロイル−Ｌ−グルタミン酸−２−オクチルドデシルエステル、アジピン酸ジ２−ヘプチルウンデシル、エチルラウレート、セバシン酸ジ２−エチルヘキシル、ミリスチン酸２−ヘキシルデシル、パルミチン酸２−ヘキシルデシル、アジピン酸２−ヘキシルデシル、セバシン酸ジイソプロピル、コハク酸ジ２−エチルヘキシル、酢酸エチル、酢酸ブチル、酢酸アミル、クエン酸トリエチル、パラメトキシケイ皮酸２−エチルヘキシル、ジピバリン酸トリプロピレングリコール等のエステル油；コレステロール、フィトステロール、分岐脂肪酸コレステロールエステル、マカデミアナッツ脂肪酸フィトステリルエステル等のステロール類及びその誘導体；硬化油等の加工油類；ステアリン酸、ミリスチン酸、イソ型長鎖脂肪酸、アンテイソ型長鎖脂肪酸などの高級脂肪酸；ジカプリルエーテル等のエーテル；リモネン、水素添加ビサボロール等のテルペン類等が挙げられ、これらを１種又は２種以上を選択して用いることができる。 (D) The oil used in the present invention is not particularly limited as long as it is commercially available as a raw material for cosmetics and pharmaceuticals. For example, olive oil, macadamia nut oil, meadow foam oil, castor oil, safflower oil, sunflower oil, Vegetable oils such as avocado oil, canola oil, kyounin oil, rice germ oil, rice bran oil, jojoba oil, shea butter, mango butter, argan oil, murmur butter; glyceryl triacetylhydroxystearate, glyceryl triacetylricinoleate, triisopalmitin Glyceryl acid, glyceryl triisostearate, glyceryl triundecanoate, glyceryl trihydroxystearate, glyceryl trioleate, glyceryl tri (capryl / caprin / isostearate / adipic acid), tri (capryl / capric acid) Seryl, tri (capryl / caprin / myristin / stearic acid) glyceryl, tri (capryl / caprin / lauric acid) glyceryl, tri (capryl / caprin / linoleic acid) glyceryl, tricapric acid glyceryl, tri-tallow fatty acid glyceryl, tri (tallow fatty acid -Mink oil fatty acid-Cod liver oil fatty acid) Glyceryl, glyceryl trimyristate, glyceryl tristearate, glyceryl tripalmitate, glyceryl tri-2-heptylundecanoate, glyceryl tribehenate, tri (mink oil fatty acid / palmitic acid) glyceryl, triyac Synthetic oils such as glyceryl oil fatty acid, glyceryl trilaurate, glyceryl trilanoline fatty acid, tri (ricinolein, capron, capryl, capric acid) glyceryl, glyceryl trilinoleate, etc. Glycerides; squalanes such as olive squalane, rice squalane and shark squalane; silicone oils such as dimethylpolysiloxane and cyclic silicone; hydrocarbons such as paraffin, liquid paraffin, petrolatum and olefin oligomers; waxes such as beeswax, mole and carnauba wax; Isopropyl myristate, cetyl octanoate, octyldodecyl myristate, isopropyl palmitate, butyl stearate, hexyl laurate, myristyl myristate, decyl oleate, hexyl decyl dimethyloctanoate, cetyl lactate, myristyl lactate, lanolin acetate, stearic acid Isocetyl, isocetyl isostearate, cholesteryl 12-hydroxystearylate, ethylene glycol di-2-ethylhexanoate, dipentaerythritol Fatty acid ester, n-alkyl glycol monoisostearate, neopentyl glycol dicaprate, diisostearyl malate, glycerin di-2-heptylundecanoate, trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, tetra 2-ethylhexanoic acid pentaerythritol, glyceryl tri-2-ethylhexanoate, trimethylolpropane triisostearate, cetyl 2-ethylhexanoate, 2-ethylhexyl palmitate, diethylhexyl naphthalene dicarboxylate, benzoic acid (carbon number 12 -15) alkyl, cetearyl isononanoate, (dicaprylic acid / capric acid) butylene glycol, castor oil fatty acid methyl ester, oleyl oleate, 2-hexyl palmitate Tilundecyl, diisobutyl adipate, N-lauroyl-L-glutamic acid-2-octyldodecyl ester, di-2-heptylundecyl adipate, ethyl laurate, di-2-ethylhexyl sebacate, 2-hexyldecyl myristate, palmitic acid 2 -Hexyldecyl, 2-hexyldecyl adipate, diisopropyl sebacate, di-2-ethylhexyl succinate, ethyl acetate, butyl acetate, amyl acetate, triethyl citrate, 2-ethylhexyl paramethoxycinnamate, tripropylene glycol dipivalate, etc. Ester oils; sterols such as cholesterol, phytosterols, branched fatty acid cholesterol esters, macadamia nut fatty acid phytosteryl esters and derivatives thereof; processing oils such as hardened oils; stearic acid Higher fatty acids such as myristic acid, iso-type long-chain fatty acid, and ante-iso-type long-chain fatty acid; ethers such as dicapryl ether; terpenes such as limonene and hydrogenated bisabolol, and the like. Can be used.
このうち、米糠油、コメヌカエキス、マンゴーバター、シア脂、マカデミアナッツ油、ホホバ油、メドウフォーム油、ムルムルバター、ミツロウ及びアルガンオイルからなる群から選択される油１種又は２種以上を含有するのが、安定な水中油型乳化系を形成し、良好な塗布時の使用感を得る上で好ましい。特に、良好な塗布時の使用感を得る点で、これらの油剤を（Ｄ）成分の総量に対する含有量は、下限は３０質量％以上が好ましく、４０質量%以上がより好ましく、上限は７５質量%以下が好ましく、６５質量%以下がより好ましい。具体的には好ましくは３０〜７５質量％であり、より好ましくは４０〜６５質量％である。 Among these, it contains one or more oils selected from the group consisting of rice bran oil, rice bran extract, mango butter, shea fat, macadamia nut oil, jojoba oil, meadow foam oil, murmur butter, beeswax and argan oil. It is preferable for forming a stable oil-in-water emulsion system and obtaining a good feeling during use. In particular, the content of these oils with respect to the total amount of component (D) is preferably 30% by mass or more, more preferably 40% by mass or more, and the upper limit is 75% by mass in terms of obtaining a good feeling during application. % Or less is preferable, and 65% by mass or less is more preferable. Specifically, it is preferably 30 to 75% by mass, more preferably 40 to 65% by mass.
成分（Ｄ）の含有量は、特に限定されるものではないが、経時安定性、べたつき等の使用感を改善し、延展性を高める点から、組成物総量に対して、１〜２５質量％であることが必要であり、下限は２質量％以上が好ましく、また上限は２０質量％以下が好ましく、１５質量％以下がより好ましい。具体的には好ましくは１〜２０質量％であり、さらに好ましくは２〜１５質量％である。 The content of the component (D) is not particularly limited, but it is 1 to 25% by mass based on the total amount of the composition from the viewpoint of improving the usability such as stability over time and stickiness and enhancing the spreadability. The lower limit is preferably 2% by mass or more, and the upper limit is preferably 20% by mass or less, more preferably 15% by mass or less. Specifically, it is preferably 1 to 20% by mass, and more preferably 2 to 15% by mass.
本発明に用いられる（Ｅ）高級アルコールは、式ＲＯＨ（Ｒは炭素数１２以上の直鎖又は分岐のアルキル又はアルケニル基）で表される炭素数１２以上の飽和又は不飽和の直鎖又は分岐のアルコールである。高級アルコールは、乳化製剤の安定性の向上、乳化製剤の外観、粘度ならびに塗布する際の延展性、肌おさまり、保湿効果の点から、炭素数１２〜２４の飽和又は不飽和の直鎖又は分岐アルコールがより好ましく、炭素数１４〜２４の飽和直鎖アルコールがさらに好ましく、炭素数１６〜２２の飽和直鎖アルコールがさらに好ましい。具体的には、ミリスチルアルコール、セチルアルコール、ステアリルアルコール、アラキルアルコール、ベヘニルアルコール、カルナービルアルコールからなる群から選択される１種又は２種以上が挙げられ、１種又は２種以上を適宜組み合わせて用いることができる。 The higher alcohol (E) used in the present invention is a saturated or unsaturated straight or branched chain having 12 or more carbon atoms represented by the formula ROH (where R is a straight or branched alkyl or alkenyl group having 12 or more carbon atoms). Of alcohol. Higher alcohol is a saturated or unsaturated linear or branched chain having 12 to 24 carbon atoms from the viewpoint of improving the stability of the emulsion preparation, the appearance of the emulsion preparation, the viscosity, spreadability when applied, softening the skin, and moisturizing effect. Alcohol is more preferable, saturated linear alcohol having 14 to 24 carbon atoms is further preferable, and saturated linear alcohol having 16 to 22 carbon atoms is further preferable. Specific examples include one or two or more selected from the group consisting of myristyl alcohol, cetyl alcohol, stearyl alcohol, aralkyl alcohol, behenyl alcohol, and carnerville alcohol. Can be used.
成分（Ｅ）の含有量は、肌なじみ、べたつき・ぬるつき感を改善する点から、組成物総量に対して、０．０５〜２．５質量％であることが必要であり、０．１質量％以上が好ましく、０．２質量％以上がより好ましく、また２質量％以下が好ましく、１．５質量％以下がより好ましく、１質量％以下がより好ましく、０．８質量％以下がさらに好ましい。具体的には、０．０５〜２質量％であるのが好ましく、より好ましくは０．０５〜１．５質量％であり、さらに好ましくは０．１〜１質量％であり、さらに好ましくは０．２〜０．８質量％である。 The content of the component (E) is required to be 0.05 to 2.5% by mass with respect to the total amount of the composition from the viewpoint of improving skin familiarity, stickiness / stickiness, and 0.1 % By mass or more is preferable, 0.2% by mass or more is more preferable, 2% by mass or less is preferable, 1.5% by mass or less is more preferable, 1% by mass or less is more preferable, and 0.8% by mass or less is even more preferable. preferable. Specifically, it is preferably 0.05 to 2% by mass, more preferably 0.05 to 1.5% by mass, still more preferably 0.1 to 1% by mass, and still more preferably 0. .2 to 0.8% by mass.
成分（Ｃ）と、成分（Ｄ）及び成分（Ｅ）の水中油型乳化組成物中の含有質量比（成分（Ｃ）／（成分（Ｄ）＋成分（Ｅ）））は、経時安定性、油剤の感触の点から、０．０４〜０．５が好ましく、０．０４〜０．１が好ましい。 The mass ratio of the component (C), the component (D) and the component (E) in the oil-in-water emulsion composition (component (C) / (component (D) + component (E))) is stable over time. From the viewpoint of the feel of the oil agent, 0.04 to 0.5 is preferable, and 0.04 to 0.1 is preferable.
また、本発明の水中油型乳化組成物には、上記成分の他に、目的に応じて本発明の効果を損なわない範囲内で、他の界面活性剤、低級アルコール、水溶性高分子、植物エキス、ビタミン類、酸化防止剤、防菌防腐剤、消炎剤、昆虫忌避剤、生理活性成分、塩類、キレート剤、中和剤、水、ｐＨ調整剤、香料等を配合することができる。 In addition to the above components, the oil-in-water emulsion composition of the present invention includes other surfactants, lower alcohols, water-soluble polymers, plants, and the like within a range that does not impair the effects of the present invention depending on the purpose. Extracts, vitamins, antioxidants, antibacterial and antiseptics, anti-inflammatory agents, insect repellents, physiologically active ingredients, salts, chelating agents, neutralizing agents, water, pH adjusters, fragrances and the like can be blended.
本発明の水中油型乳化組成物の用途としては、化粧料、医薬部外品、医薬品等に特に制限なく用いることができるが、使用感の良さから化粧料、医薬部外品として好適に用いることが出来る。具体的にはシャンプー、リンス、コンディショナーなどの毛髪化粧料、洗顔料、クレンジング化粧料、ローション、乳液、クリーム、美容液、日焼け止め化粧料、パック、マッサージ化粧料などの皮膚化粧料として好適に利用できる。これらのうち、特に乳液、クリーム、美容液等のスキンケア化粧料として適用するのが好ましい。 The use of the oil-in-water emulsion composition of the present invention can be used without particular limitation for cosmetics, quasi drugs, pharmaceuticals, etc., but is suitably used as cosmetics, quasi drugs because of its good feeling of use. I can do it. Specifically, it is suitable for use as skin cosmetics such as shampoos, rinses, conditioners, and other hair cosmetics, facial cleansers, cleansing cosmetics, lotions, milky lotions, creams, serums, sunscreen cosmetics, packs, and massage cosmetics. it can. Among these, it is particularly preferable to apply as skin care cosmetics such as milky lotion, cream, and cosmetic liquid.
次に本発明の態様及び好ましい実施態様を示す。
＜１＞次の成分（Ａ）〜（Ｅ）、
（Ａ）キサンタンガム、
（Ｂ）質量平均分子量１００００以上、６００００以下の寒天、
（Ｃ）ＨＬＢ６以下のノニオン性界面活性剤（但し、２種以上の界面活性剤を用いる場合は、混合ＨＬＢは６以下）、
（Ｄ）油剤（成分（Ｅ）は除く） １〜２５質量％、及び
（Ｅ）高級アルコール ０．０５〜２．５質量％
を含有し、成分（Ａ）と成分（Ｂ）の合計含有量が０．０１〜１．８質量％であり、成分（Ａ）と成分（Ｂ）の含有質量比（Ａ：Ｂ）が６：４〜２：８である水中油型乳化組成物。
Next, the aspect of this invention and a preferable embodiment are shown.
<1> The following components (A) to (E),
(A) xanthan gum,
(B) Agar having a mass average molecular weight of 10,000 or more and 60000 or less,
(C) Nonionic surfactant having an HLB of 6 or less (however, when two or more surfactants are used, the mixed HLB is 6 or less),
(D) Oil agent (excluding component (E)) 1 to 25% by mass, and (E) higher alcohol 0.05 to 2.5% by mass
The total content of component (A) and component (B) is 0.01 to 1.8% by mass, and the content ratio (A: B) of component (A) and component (B) is 6 : The oil-in-water type emulsion composition which is 4: 2: 8.
＜２＞成分（Ｂ）が、質量平均分子量２００００〜６００００、Ｍｗ／Ｍｎが１．１〜８．０の寒天である＜１＞の水中油型乳化組成物。
＜３＞成分（Ａ）と成分（Ｂ）の合計含有量が０．１質量％以上、好ましくは０．５質量％以上、また１．５質量％以下、好ましくは１質量％以下である＜１＞又は＜２＞の水中油型乳化組成物。
＜４＞Ａ：Ｂが５：５〜３：７、好ましくは４：６〜３：７である＜１＞〜＜３＞の水中油型乳化組成物。
＜５＞成分（Ｃ）が、グリセリン脂肪酸エステル、ソルビタン脂肪酸エステル及びショ糖脂肪酸エステルから選ばれる１種又は２種以上であり、好ましくはソルビタン脂肪酸エステルである＜１＞〜＜４＞の水中油型乳化組成物。
＜６＞成分（Ｃ）が、ＨＬＢが１〜６の炭素数１２〜２２の直鎖脂肪酸基又は分岐脂肪酸基を有するソルビタン脂肪酸エステル、好ましくはＨＬＢが３〜５．５で、炭素数が１５〜２０の分岐脂肪酸基を有するソルビタン脂肪酸エステルである＜１＞〜＜５＞の水中油型乳化組成物。
＜７＞成分（Ｃ）の含有量が、０．０１質量％以上、好ましくは０．１質量％以上、より好ましくは０．５質量％以上であり、また１０質量％以下、好ましくは５質量％以下、より好ましくは３質量％以下である＜１＞〜＜６＞の水中油型乳化組成物。
＜８＞成分（Ｄ）が、植物油、合成トリグリセリド、スクワラン、シリコーン油、炭化水素油、エステル油、ステロール類、高級加工油類、脂肪酸、エーテル油及びテルペン類から選ばれる１種又は２種以上である＜１＞〜＜７＞の水中油型乳化組成物。
＜９＞成分（Ｄ）が、米糠油、コメヌカエキス、マンゴーバター、シア脂、マカデミアナッツ油、ホホバ油、メドウフォーム油、ムルムルバター、ミツロウ及びアルガンオイルから選ばれる１種又は２種以上を含有する＜１＞〜＜８＞の水中油型乳化組成物。
＜10＞成分（Ｄ）の含有量が２質量％以上であり、また２０質量％以下、好ましくは１５質量％以下である＜１＞〜＜９＞の水中油型乳化組成物。
＜11＞成分（Ｅ）が、炭素数１２〜２４の飽和又は不飽和の直鎖又は分岐アルコール、好ましくは炭素数１４〜２４の飽和直鎖アルコール、より好ましくは炭素数１６〜２２の飽和直鎖アルコールである＜１＞〜＜１０＞の水中油型乳化組成物。
＜12＞成分（Ｅ）の含有量が、０．１質量％以上、好ましくは０．２質量％以上であり、また２質量％以下、好ましくは１．５質量％以下、より好ましくは１質量％以下、さらに好ましくは０．８質量％以下である＜１＞〜＜１１＞の水中油型乳化組成物。
＜13＞成分（Ｃ）と成分（Ｄ）及び成分（Ｅ）の含有質量比（成分（Ｃ）／（成分（Ｄ）＋成分（Ｅ）））が、０．０４〜０．５、好ましくは０．０４〜０．１である＜１＞〜＜１２＞の水中油型乳化組成物。
<2> The oil-in-water emulsion composition according to <1>, wherein the component (B) is agar having a mass average molecular weight of 20,000 to 60,000 and Mw / Mn of 1.1 to 8.0.
<3> The total content of component (A) and component (B) is 0.1% by mass or more, preferably 0.5% by mass or more, and 1.5% by mass or less, preferably 1% by mass or less <1> or <2> oil-in-water emulsion composition.
<4> The oil-in-water emulsion composition according to <1> to <3>, wherein A: B is 5: 5 to 3: 7, preferably 4: 6 to 3: 7.
<5> Oil-in-water of <1> to <4>, wherein component (C) is one or more selected from glycerin fatty acid ester, sorbitan fatty acid ester and sucrose fatty acid ester, and preferably sorbitan fatty acid ester Type emulsified composition.
<6> Component (C) is a sorbitan fatty acid ester having a linear fatty acid group having 12 to 22 carbon atoms or a branched fatty acid group having 1 to 6 HLB, preferably 3 to 5.5 HLB and 15 carbon atoms. The oil-in-water emulsion composition according to <1> to <5>, which is a sorbitan fatty acid ester having -20 branched fatty acid groups.
<7> The content of the component (C) is 0.01% by mass or more, preferably 0.1% by mass or more, more preferably 0.5% by mass or more, and 10% by mass or less, preferably 5% by mass. % Or less, more preferably 3% by mass or less, <1> to <6> of an oil-in-water emulsion composition.
<8> Component (D) is one or more selected from vegetable oils, synthetic triglycerides, squalane, silicone oils, hydrocarbon oils, ester oils, sterols, higher processing oils, fatty acids, ether oils and terpenes <1> to <7>, which are oil-in-water emulsion compositions.
<9> Component (D) contains one or more selected from rice bran oil, rice bran extract, mango butter, shea butter, macadamia nut oil, jojoba oil, meadow foam oil, murmuru butter, beeswax and argan oil <1>-<8> oil-in-water emulsion composition.
<10> The oil-in-water emulsion composition according to <1> to <9>, wherein the content of the component (D) is 2% by mass or more and 20% by mass or less, preferably 15% by mass or less.
<11> Component (E) is a saturated or unsaturated linear or branched alcohol having 12 to 24 carbon atoms, preferably a saturated linear alcohol having 14 to 24 carbon atoms, more preferably a saturated straight chain having 16 to 22 carbon atoms. <1>-<10> oil-in-water emulsion composition which is a chain alcohol.
<12> The content of component (E) is 0.1% by mass or more, preferably 0.2% by mass or more, and 2% by mass or less, preferably 1.5% by mass or less, more preferably 1% by mass. % Or less, more preferably 0.8% by mass or less, <1> to <11> of an oil-in-water emulsion composition.
<13> Component mass ratio of component (C), component (D) and component (E) (component (C) / (component (D) + component (E))) is preferably 0.04 to 0.5. Is an oil-in-water emulsion composition according to <1> to <12>, which is 0.04 to 0.1.
実施例１〜１２、及び比較例１〜８
表１及び表２に示した処方に従い、水中油型乳化組成物を調製した。これらを用いて、下記の（１）経時安定性試験（高温及び低温）、（２）官能性試験を実施し、それぞれ評価した。結果は表１及び表２に併せて示した。
Examples 1-12 and Comparative Examples 1-8
According to the formulations shown in Table 1 and Table 2, oil-in-water emulsion compositions were prepared. Using these, the following (1) stability test over time (high temperature and low temperature) and (2) functionality test were carried out and evaluated. The results are shown in Table 1 and Table 2 together.
（１）経時安定性試験
表１及び表２に示した水中油型乳化組成物をガラス瓶に入れ、それぞれの試料を４５℃及び−１０℃の恒温槽に３ヶ月間保管した。調製直後の状態を基準として、３ヶ月後の外観の変化を目視により下記基準に基づいて判定した。
(1) Stability test over time The oil-in-water emulsion compositions shown in Tables 1 and 2 were placed in a glass bottle, and each sample was stored in a thermostat at 45 ° C. and −10 ° C. for 3 months. Based on the state immediately after preparation, the change in appearance after 3 months was visually determined based on the following criteria.
（経時安定性（高温：４５℃、３ヶ月）評価基準）
○：問題なし
△１：極めて軽微な分離が見られる
△２：極めて軽微な過剰固化が見られる
×１：分離、離油、離水が見られる
×２：過剰固化が見られる
（経時安定性（低温：−１０℃、３ヶ月）評価基準）
○：問題なし
△１：極めて軽微な分離が見られる
△２：極めて軽微な過剰固化が見られる
×１：分離、離油、離水が見られる
×２：過剰固化が見られる
(Evaluation criteria for stability over time (high temperature: 45 ° C, 3 months))
○: No problem Δ1: Very slight separation is observed Δ2: Very slight over solidification is observed × 1: Separation, oil separation and water separation are observed × 2: Excess solidification is observed (stability over time ( Low temperature: -10 ° C, 3 months) Evaluation criteria)
○: No problem Δ1: Very slight separation is observed Δ2: Very slight over-solidification is observed × 1: Separation, oil separation and water separation are observed × 2: Over-solidification is observed
（２）官能性試験
１０名の評価パネラーに配合油剤（コメヌカエキス、マンゴーバター、シア脂）及び各試料をそれぞれ肌に直接塗布してもらい、塗布時の「配合油剤の感触を感じられるか」について、下記評価基準に基づき、それぞれ評価した。評価結果は、１０名の評価パネラーの平均点を示した。
(2) Sensory test About 10 panelists who have applied the oil mixture (rice bran extract, mango butter, shea butter) and each sample directly to their skins, and can you feel the feel of the oil mixture? The evaluation was made based on the following evaluation criteria. The evaluation result showed the average score of 10 evaluation panelists.
（配合油剤の感触を感じられるかの評価基準）
５：感じやすい
４：比較的感じやすい
３：どちらとも言えない
２：少しだけ感じることが可能である
１：感じられない（別感触である）
(Evaluation criteria for feel of blended oil)
5: Easy to feel 4: Relatively easy to feel 3: Can't say either 2: Can feel a little 1: Not felt (different feel)
同時に、塗布時及び塗布後の肌感触として「ベタつき・ヌルツキ」についても下記評価基準に基づき、それぞれ評価した。評価結果は、１０名の評価パネラーの平均点を示した。 At the same time, the “stickiness / nullness” as the skin feel after application and after application was also evaluated based on the following evaluation criteria. The evaluation result showed the average score of 10 evaluation panelists.
（ベタツキ・ヌルツキ評価基準）
５：ベタツキ・ヌルツキを感じない
４：僅かにベタツキ・ヌルツキを感じる
３：どちらとも言えない
２：ベタツキ・ヌルツキを感じる
１：ベタツキ・ヌルツキを強く感じる
(Evaluation standards for stickiness / nulltsuki)
5: I don't feel sticky / nullki 4: I feel a little sticky / nullki 3: I can't say either 2: I feel sticky / nullki 1: I feel sticky / nullki strongly
※１：ノムコートＡＧ （日清オイリオグループ（株））
※２：ウルトラ寒天ＡＸ−１００（伊那食品工業（(株)；Ｍｗ＝７９０００）
※３：クリル6 （クローダジャパン（株））
※４：サーフホープSE C-1805 （三菱化学フーズ（株））
※５：NIKKOL HCO-20 （日光ケミカルズ（株））
※６：ライストリエノール（築野食品工業社製）
* 1: Nom Coat AG (Nisshin Oillio Group, Inc.)
* 2: Ultra Agar AX-100 (Ina Food Industry Co., Ltd .; Mw = 79000)
* 3: Krill 6 (Croda Japan Co., Ltd.)
* 4: Surf Hope SE C-1805 (Mitsubishi Chemical Foods)
* 5: NIKKOL HCO-20 (Nikko Chemicals Corporation)
* 6: Leistrie Nord (Tsukino Food Industry Co., Ltd.)
表１及び表２より、本発明の水中油型乳化組成物は、保存安定性が良好であり、かつ配合した油剤の感触が良好である。一方、成分（Ａ）及び（Ｂ）を配合しない比較例１〜３は保存安定性及び感触ともに良くなかった。また、ＨＬＢの高いノニオン性界面活性剤を配合した比較例４、５は保存安定性及び感触ともに良くなかった。また、成分（Ｅ）の含有量が多すぎる場合（比較例６）、成分（Ｄ）の含有量が多すぎる場合（比較例７）、成分（Ａ）及び（Ｂ）の含有量が多すぎる場合（比較例８）も、保存安定性及び感触が良くなかった。 From Tables 1 and 2, the oil-in-water emulsion composition of the present invention has good storage stability and good feel of the blended oil agent. On the other hand, Comparative Examples 1 to 3 in which components (A) and (B) were not blended were not good in both storage stability and feel. Further, Comparative Examples 4 and 5 containing a nonionic surfactant having a high HLB were not good in both storage stability and feel. Moreover, when there is too much content of a component (E) (comparative example 6), when there is too much content of a component (D) (comparative example 7), there is too much content of a component (A) and (B). In the case (Comparative Example 8), the storage stability and feel were not good.
次に、以下の処方に従い、常法にて水中油乳化組成物を調製した。いずれも官能効果に優れ、良好な経時安定性が期待されるものである。 Next, an oil-in-water emulsion composition was prepared by a conventional method according to the following formulation. All of them are excellent in sensory effect and are expected to have good stability over time.
処方例１（乳液）
成分 質量％
〔水相〕
キサンタンガム・低分子寒天混合物 ※１ １．２
グリセリン ３．０
ジプロピレングリコール ５．０
エデト酸二ナトリウム ０．０５
クロルフェネシン ０．１
フェノキシエタノール ０．２
Ｎ−ラウロイル−Ｌ−グルタミン酸ナトリウム ※７ ０．０３
精製水 残 分
〔油相〕
モノイソステアリン酸ソルビタン ※４ ０．８
ベヘニルアルコール ０．３
ステアリルアルコール ０．３
ムルムルバター ４．０
α−オレフィンオリゴマー ３．０
セバシン酸ジイソプロピル ２．０
香料 ０．０５
エキス
パン酵母エキス ０．１
キョウニンエキス ０．１
アプリコットエキス ０．１
レモンエキス ０．１
※７：アミソフトＬＳ−１１（味の素(株)）
Formulation Example 1 (Emulsion)
Ingredient Mass%
[Water phase]
Xanthan gum / low molecular agar mixture * 1 1.2
Glycerin 3.0
Dipropylene glycol 5.0
Edetate disodium 0.05
Chlorphenesin 0.1
Phenoxyethanol 0.2
N-lauroyl-L-glutamate sodium * 7 0.03
Purified water residue (oil phase)
Sorbitan monoisostearate * 4 0.8
Behenyl alcohol 0.3
Stearyl alcohol 0.3
Muru Muru Butter 4.0
α-olefin oligomer 3.0
Diisopropyl sebacate 2.0
Fragrance 0.05
EXPAN Yeast Extract 0.1
Kyonin extract 0.1
Apricot extract 0.1
Lemon extract 0.1
* 7: Amisoft LS-11 (Ajinomoto Co., Inc.)
処方例２（美容液）
成分 質量％
〔水相〕
キサンタンガム・低分子寒天混合物 ※１ ０．８
グリセリン １０．０
ソルビトール液（７０％水溶液） ３．０
マルチトール液 ５．０
エデト酸二ナトリウム ０．０５
クロルフェネシン ０．１
フェノキシエタノール ０．２
Ｎ−ラウロイル−Ｌ−グルタミン酸ナトリウム ※７ ０．０１
精製水 残 分
〔油相〕
モノイソステアリン酸ソルビタン ※４ ０．５
ベヘニルアルコール ０．３
マンゴーバター ３．０
α−オレフィンオリゴマー １．０
パルミチン酸オクチルドデシル １．０
香料 ０．０２
トウキエキス ０．１
アロエエキス ０．１
バラエキス ０．１
ユズエキス ０．１
Formulation Example 2 (Cosmetic liquid)
Ingredient Mass%
[Water phase]
Xanthan gum / low molecular agar mixture * 1 0.8
Glycerin 10.0
Sorbitol solution (70% aqueous solution) 3.0
Maltitol 5.0
Edetate disodium 0.05
Chlorphenesin 0.1
Phenoxyethanol 0.2
Sodium N-lauroyl-L-glutamate * 7 0.01
Purified water residue (oil phase)
Sorbitan monoisostearate * 4 0.5
Behenyl alcohol 0.3
Mango butter 3.0
α-olefin oligomer 1.0
Octyldodecyl palmitate 1.0
Perfume 0.02
Toki extract 0.1
Aloe extract 0.1
Rose extract 0.1
Yuzu Extract 0.1
Claims (5)
（Ａ）キサンタンガム、
（Ｂ）質量平均分子量１００００以上、６００００以下の寒天、
（Ｃ）ＨＬＢ６以下のノニオン性界面活性剤（但し、２種以上のノニオン性界面活性剤を用いる場合は、混合ＨＬＢは６以下）、
（Ｄ）油剤（成分（Ｅ）は除く） １〜２５質量％、及び
（Ｅ）高級アルコール ０．０５〜２．５質量％
を含有し、成分（Ａ）と成分（Ｂ）の合計含有量が０．０１〜１．８質量％であり、成分（Ａ）と成分（Ｂ）の含有質量比（Ａ：Ｂ）が６：４〜２：８であり、成分（Ｃ）と、成分（Ｄ）及び成分（Ｅ）の含有質量比（成分（Ｃ）／（成分（Ｄ）＋成分（Ｅ）））が、０．０４〜０．５である水中油型乳化組成物。 The following components (A) to (E),
(A) xanthan gum,
(B) Agar having a mass average molecular weight of 10,000 or more and 60000 or less,
(C) HLB 6 or less nonionic surfactant (however, when two or more nonionic surfactants are used, the mixed HLB is 6 or less),
(D) Oil agent (excluding component (E)) 1 to 25% by mass, and (E) higher alcohol 0.05 to 2.5% by mass
The total content of component (A) and component (B) is 0.01 to 1.8% by mass, and the content ratio (A: B) of component (A) and component (B) is 6 : 4 to 2: 8 der is, the component (C), containing a mass ratio of component (D) and component (E) (component (C) / (component (D) + component (E))) is, 0 .04～0.5 der Ru oil-in-water emulsion composition.
（Ａ）キサンタンガム、(A) xanthan gum,
（Ｂ）質量平均分子量１００００以上、６００００以下の寒天、(B) Agar having a mass average molecular weight of 10,000 or more and 60000 or less,
（Ｃ）ＨＬＢ６以下のノニオン性界面活性剤（但し、２種以上のノニオン性界面活性剤を用いる場合は、混合ＨＬＢは６以下） ０．０１〜５質量％、(C) HLB 6 or less nonionic surfactant (however, when two or more kinds of nonionic surfactants are used, mixed HLB is 6 or less) 0.01 to 5% by mass,
（Ｄ）油剤（成分（Ｅ）は除く） １〜２５質量％、及び(D) Oil agent (excluding component (E)) 1 to 25% by mass, and
（Ｅ）高級アルコール ０．０５〜２．５質量％(E) Higher alcohol 0.05-2.5 mass%
を含有し、成分（Ａ）と成分（Ｂ）の合計含有量が０．０１〜１．８質量％であり、成分（Ａ）と成分（Ｂ）の含有質量比（Ａ：Ｂ）が６：４〜２：８である水中油型乳化組成物。The total content of component (A) and component (B) is 0.01 to 1.8% by mass, and the content ratio (A: B) of component (A) and component (B) is 6 : The oil-in-water type emulsion composition which is 4: 2: 8.
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