JP2019172606A - Skin emulsion cosmetics - Google Patents
Skin emulsion cosmetics Download PDFInfo
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- JP2019172606A JP2019172606A JP2018062339A JP2018062339A JP2019172606A JP 2019172606 A JP2019172606 A JP 2019172606A JP 2018062339 A JP2018062339 A JP 2018062339A JP 2018062339 A JP2018062339 A JP 2018062339A JP 2019172606 A JP2019172606 A JP 2019172606A
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- 239000000839 emulsion Substances 0.000 title abstract description 9
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Abstract
Description
本発明は、塗布中にみずみずしい感触を得ることができ、塗布直後だけでなく長時間にわたり、肌の上に塗布膜の存在感を実感できる皮膚用乳化化粧料に関するものである。 The present invention relates to an emulsified cosmetic for skin that can provide a fresh feeling during application and can realize the presence of a coating film on the skin not only immediately after application but also for a long time.
近年、時計美容という概念が注目を集めている。生体には時計遺伝子と呼ばれる遺伝子群が存在し、夜の時計遺伝子、昼の時計遺伝子があるといわれている。生体は夜の時計遺伝子と昼の時計遺伝子の発現量が２４時間周期で規則正しく変動し、１日のリズム（概日リズム）を作っている。皮膚では時計遺伝子によって、昼に保湿機能、夜にバリア機能回復を周期的にコントロールしていといわれている。しかしながら、時計遺伝子によるコントロールは睡眠不足や生活の乱れ、精神的なストレスなど日常生活の乱れにより減弱し、その結果、昼には皮膚水分量の低下、夜は皮膚バリア機能の回復力の低下が起きてしまい、これを日々繰り返すことで肌の不調をもたらしてしまう。時計美容とはこのような昼と夜の肌機能の違いに着目し、それぞれの時間帯に適切なケアをするという概念である。 In recent years, the concept of watch beauty has attracted attention. A living organism has a group of genes called clock genes, and it is said that there are night clock genes and day clock genes. In living organisms, the expression level of the night clock gene and day clock gene fluctuates regularly in a 24-hour cycle, creating a daily rhythm (circadian rhythm). It is said that the clock gene controls the moisturizing function during the day and the restoration of the barrier function at night by the clock gene. However, control by the clock gene is attenuated by disturbance of daily life such as lack of sleep, disturbance of life, mental stress, etc., resulting in a decrease in skin water content during the day and a decrease in the ability to recover the skin barrier function at night. Wake up and repeat this every day, causing skin problems. Watch beauty is a concept that pays attention to such a difference in skin function between day and night, and performs appropriate care in each time zone.
また、肌は日中に紫外線や乾燥等により炎症等のダメージも受ける。バリア機能が低下した状態では肌が受けるダメージも多くなってしまう。夜は肌が日中に受けたダメージからの回復とバリア機能の回復によって翌日に備える時間帯であり、この時間帯のスキンケアが特に重要になる。ダメージからの回復とバリア機能の回復には肌が余分な外的刺激を受けないことが重要である。そのため肌を保護することが重要である。 In addition, the skin is damaged by inflammation or the like due to ultraviolet rays or drying during the day. When the barrier function is lowered, the skin suffers more damage. The night is a time zone that prepares for the next day by recovering from the damage that the skin took during the day and the recovery of the barrier function, and skin care in this time zone is particularly important. It is important that the skin does not receive extra external stimuli for recovery from damage and barrier function. Therefore, it is important to protect the skin.
一般に肌を保護するものとしては、特許文献１に開示されているようなワセリン様のペースト状油剤（バーム）や特許文献２に開示されているような保湿クリームが挙げられる。ペースト状油剤は肌を保護する効果が高く長時間持続するが、伸びが良くないことやべたつきがあることから、部分的な使用に適している。しかし顔全体への塗布というように、広範囲に使用する場合には適さない。一方、保湿クリームは一定量の油剤を界面活性剤で乳化したものであるが、ペースト状油剤に比べ肌を保護する効果は多少劣るものの、部分的に使用することができ、伸びやべたつきはよいので広範囲に使用する場合にも適する。しかし、塗布中のみずみずしさや肌を保護する効果が長時間持続するという観点では満足されていない。 Generally as what protects skin, the petrolatum-like pasty oil agent (balm) as disclosed by patent document 1, and the moisturizing cream as disclosed by patent document 2 are mentioned. Paste oils are effective for protecting the skin and last for a long time, but are not suitable for partial use because they do not stretch well and are sticky. However, it is not suitable for a wide range of applications such as application to the entire face. On the other hand, a moisturizing cream is obtained by emulsifying a certain amount of oil with a surfactant, but the effect of protecting the skin is somewhat inferior to that of a pasty oil, but it can be used partially and has good elongation and stickiness. So it is suitable for a wide range of use. However, it is not satisfied from the viewpoint that the effect of protecting freshness and skin during application lasts for a long time.
上記保湿クリームの欠点を解決する方法としては、特許文献３に開示されている方法を用いることが考えられる。ある種の高分子乳化剤を用いて油剤を乳化して保湿ジェルのような組成物を作る方法である。これによって、塗布中のみずみずしさを付与することができる。 As a method for solving the drawbacks of the moisturizing cream, it is conceivable to use the method disclosed in Patent Document 3. This is a method of making a composition such as a moisturizing gel by emulsifying an oil agent using a certain type of polymer emulsifier. Thus, freshness can be imparted during application.
しかしながら、特許文献３に開示されている方法では、肌の保護効果とその持続という点では満足されていない。肌の保護効果は、実際に保護されていることはもちろんであるが、塗布後に肌の上に塗布膜が存在しているという存在感を感じることが重要である。精神的ストレスが時計遺伝子のコントロールを減弱する要因の一つであるように、塗布膜が存在しているという実感が精神的な安心感につながり、夜の肌の回復効果を高めることが期待されるからである。しかしながら、現在まで、肌の上での塗布膜の存在感やその持続については検討されてこなかった。 However, the method disclosed in Patent Document 3 is not satisfied with respect to the protective effect of the skin and its sustainability. Of course, the protective effect of the skin is actually protected, but it is important to feel the presence of the coating film on the skin after application. As mental stress is one of the factors that attenuate the control of clock genes, the fact that the coating film exists is expected to lead to a feeling of mental security and enhance the recovery effect of the night skin. This is because that. However, until now, the presence and persistence of the coating film on the skin has not been studied.
本発明は、塗布中にみずみずしい感触を得ることができ、塗布直後だけでなく長時間にわたり、肌の上に塗布膜の存在感を実感できる皮膚用乳化化粧料を提供することを課題とする。 An object of the present invention is to provide an emulsified cosmetic for skin that can obtain a fresh feel during application and can feel the presence of a coating film on the skin not only immediately after application but also for a long time.
なお、本発明におけるみずみずしさとは、塗布中に皮膚上において水で濡らしているかのような心地よい感触を実感する感覚のことである。 The term “freshness” in the present invention refers to a sensation in which a comfortable feeling is felt as if the skin is wet with water during application.
本発明者は、上記課題を解決するために鋭意検討した結果、（Ａ）アクリル酸・メタクリル酸アルキル共重合体およびアクリロイルジメチルタウリン塩含有共重合体から選ばれる１種以上、（Ｂ）固形油およびペースト状油から選ばれる１種以上および（Ｃ）液状油を含有する皮膚用乳化化粧料が課題を解決することを見出し、本発明を完成するに至った。 As a result of intensive studies to solve the above problems, the present inventor has found that (A) one or more selected from (A) an acrylic acid / alkyl methacrylate copolymer and an acryloyldimethyltaurine salt-containing copolymer, (B) a solid oil And one or more selected from pasty oils and (C) emulsified cosmetics for skin containing liquid oil have found that the problems are solved, and the present invention has been completed.
本発明により、塗布中にみずみずしい感触を得ることができ、塗布直後だけでなく長時間にわたり、肌の上に塗布膜の存在感を実感できる皮膚用乳化化粧料を提供する。 According to the present invention, there is provided an emulsified cosmetic for skin which can obtain a fresh feeling during application and can realize the presence of a coating film on the skin not only immediately after application but also for a long time.
以下、本発明を詳細に説明する。なお、含有量を示す単位は、特に明記しない限り全て質量％である。 Hereinafter, the present invention will be described in detail. In addition, unless otherwise indicated, the unit which shows content is mass%.
本発明は、（Ａ）アクリル酸・メタクリル酸アルキル共重合体およびアクリロイルジメチルタウリン塩含有共重合体から選ばれる１種以上、（Ｂ）固形油およびペースト状油から選ばれる１種以上および（Ｃ）液状油を含有し、（Ａ）成分の含有量が０．２〜１．５％であることを特徴とする皮膚用乳化化粧料である。 The present invention includes (A) one or more selected from an acrylic acid / alkyl methacrylate copolymer and an acryloyldimethyltaurine salt-containing copolymer, (B) one or more selected from a solid oil and a pasty oil, and (C ) An emulsified cosmetic for skin containing liquid oil and having a component (A) content of 0.2 to 1.5%.
本発明にはみずみずしい感触を得る観点から、成分（Ａ）アクリル酸・メタクリル酸アルキル共重合体およびアクリロイルジメチルタウリン塩含有共重合体から選ばれる１種以上を含有する。 From the viewpoint of obtaining a fresh feel in the present invention, it contains at least one selected from component (A) acrylic acid / alkyl methacrylate copolymer and acryloyldimethyltaurine salt-containing copolymer.
本発明のアクリル酸・メタクリル酸アルキル共重合体の具体例としては、特に限定されるものではないが、アクリレーツ／アクリル酸アルキル（Ｃ１０−３０））クロスポリマーが挙げられる。 Specific examples of the acrylic acid / alkyl methacrylate copolymer of the present invention include, but are not limited to, acrylates / alkyl acrylate (C10-30)) crosspolymer.
本発明のアクリロイルジメチルタウリン塩含有共重合体の具体例としては、特に限定されるものではないが、（アクリロイルジメチルタウリンアンモニウム／ＶＰ）コポリマー、（アクリロイルジメチルタウリンアンモニウムメタクリル酸ベヘネス−２５）クロスポリマー、（アクリル酸ヒドロキシエチル／アクリロイルジメチルタウリンＮａ）コポリマー、（アクリル酸Ｎａ／アクリロイルジメチルタウリン／ジメチルアクリルアミド）クロスポリマー、ポリアクリレートクロスポリマー−６、ポリアクリレート−１３が挙げられる。その中でも製剤調製時の分散性の良さ、経時的な粘度変化の少ない観点から（アクリロイルジメチルタウリンアンモニウム／ＶＰ）コポリマーが好ましい。これらは１種または２種以上を含有することができる。 Specific examples of the acryloyldimethyltaurine salt-containing copolymer of the present invention are not particularly limited, but include (acryloyldimethyltaurine ammonium / VP) copolymer, (acryloyldimethyltaurine ammonium behenes-25 methacrylate) crosspolymer, (Hydroxyethyl acrylate / acryloyl dimethyl taurine Na) copolymer, (Na acrylate / acryloyl dimethyl taurine / dimethyl acrylamide) crosspolymer, polyacrylate crosspolymer-6, polyacrylate-13. Among these, a copolymer (acryloyldimethyltaurate ammonium / VP) is preferred from the viewpoint of good dispersibility during preparation of the preparation and little change in viscosity over time. These can contain 1 type, or 2 or more types.
本発明において、成分（Ａ）の含有量は、塗布中にみずみずしい感触および翌朝の塗布膜の存在感の観点から、好ましくは０．２〜１．５％であり、より好ましくは０．４〜１．２％であり、さらに好ましくは０．４〜１．０％である。０．２％未満では、翌朝の塗布膜の存在感が損なわれ、１．５％を超えると、塗布中の伸びが悪くなり、塗布中のみずみずしい感触を損なう。 In the present invention, the content of the component (A) is preferably 0.2 to 1.5%, more preferably 0.4 to 1.5% from the viewpoint of a fresh feel during coating and the presence of the coating film in the next morning. 1.2%, more preferably 0.4 to 1.0%. If it is less than 0.2%, the presence of the coating film in the next morning is impaired, and if it exceeds 1.5%, the elongation during coating is deteriorated, and the fresh feel during coating is impaired.
本発明において、塗布中のみずみずしさを向上させる観点からアクリル酸・メタクリル酸アルキル共重合体およびアクリロイルジメチルタウリン塩含有共重合体を併用することが好ましい。 In the present invention, it is preferable to use an acrylic acid / alkyl methacrylate copolymer and an acryloyldimethyltaurine salt-containing copolymer together from the viewpoint of improving freshness during coating.
本発明には塗布直後における塗布膜の存在感および翌朝の塗布膜の存在感の観点から成分（Ｂ）固形油およびペースト状油から選ばれる１種以上を含有する。 The present invention contains at least one component selected from component (B) solid oil and pasty oil from the viewpoint of the presence of the coating film immediately after coating and the presence of the coating film in the next morning.
本発明の固形油の具体例としては、特に限定されるものではないが、パラフィンワックス、マイクロクリスタリンワックス等の炭化水素油、ステアリン酸ステアリル、水添パーム油、水添ホホバ油等のエステル油等が挙げられる。中でも塗布直後における塗布膜の存在感および翌朝の塗布膜の存在感の観点からステアリン酸ステアリルが好ましい。これらは１種または２種以上を含有することができる。 Specific examples of the solid oil of the present invention are not particularly limited, but hydrocarbon oils such as paraffin wax and microcrystalline wax, stearyl stearate, hydrogenated palm oil, ester oils such as hydrogenated jojoba oil, etc. Is mentioned. Among these, stearyl stearate is preferable from the viewpoint of the presence of the coating film immediately after coating and the presence of the coating film in the next morning. These can contain 1 type, or 2 or more types.
本発明のペースト状油の具体例としては、ワセリン等の炭化水素、ダイマージリノール酸ジ（フィトステリル／イソステアリル／セチル／ステアリル／ベヘニル）、ヘキサ（ヒドロキシステアリン酸／ステアリン酸／ロジン酸）ジペンタエリスリチル、ダイマージリノール酸水添ヒマシ油等のエステル油等が挙げられる。中でも塗布直後における塗布膜の存在感および翌朝の塗布膜の存在感の観点から、ワセリン、ダイマージリノール酸ジ（フィトステリル／イソステアリル／セチル／ステアリル／ベヘニル）が好ましい。これらは１種または２種以上を含有することができる。 Specific examples of the pasty oil of the present invention include hydrocarbons such as petrolatum, dimer dilinoleic acid di (phytosteryl / isostearyl / cetyl / stearyl / behenyl), hexa (hydroxystearic acid / stearic acid / rosinic acid) dipentaerythrityl, And ester oils such as dimerlinoleic acid hydrogenated castor oil. Among them, petrolatum and dimer dilinoleate (phytosteryl / isostearyl / cetyl / stearyl / behenyl) are preferable from the viewpoint of the presence of the coating film immediately after coating and the presence of the coating film in the next morning. These can contain 1 type, or 2 or more types.
本発明の成分（Ｂ）は、塗布直後における塗布膜の存在感および翌朝の塗布膜の存在感を向上する観点からペースト状油より固形油が好ましい。 The component (B) of the present invention is preferably a solid oil rather than a paste oil from the viewpoint of improving the presence of the coating film immediately after coating and the presence of the coating film the next morning.
本発明において、成分（Ｂ）の含有量は、特に限定されるものではないが、塗布直後における塗布膜の存在感および翌朝の塗布膜の存在感の観点から、好ましくは０．１〜２％であり、より好ましくは０．２〜２％であり、さらに好ましくは０．３〜１％である。成分（Ｂ）固形油の含有量が０．１％未満では、塗布直後における塗布膜の存在感および翌朝の塗布膜の存在感を損なう恐れがあり、２％を超えると、塗布中のみずみずしさを損なう恐れがある。 In the present invention, the content of the component (B) is not particularly limited, but is preferably 0.1 to 2% from the viewpoint of the presence of the coating film immediately after coating and the presence of the coating film in the next morning. More preferably, it is 0.2-2%, More preferably, it is 0.3-1%. If the content of component (B) solid oil is less than 0.1%, the presence of the coating film immediately after coating and the presence of the coating film in the next morning may be impaired. There is a risk of damage.
本発明において、固形油とは常温（２５℃）において固体である油であることをさし、ペースト状油とは、常温（２５℃）においてワセリン様の状態である油のことをさす。 In the present invention, solid oil refers to oil that is solid at room temperature (25 ° C.), and paste-like oil refers to oil that is in a petrolatum-like state at room temperature (25 ° C.).
本発明において、塗布直後における塗布膜の存在感および翌朝の塗布膜の存在感の観点から成分（Ｃ）液状油を含有する。 In the present invention, the component (C) liquid oil is contained from the viewpoint of the presence of the coating film immediately after coating and the presence of the coating film in the next morning.
成分（Ｃ）の具体例としては、特に限定されるものではないが、流動パラフィン、スクワラン、α−オレフィンオリゴマー、水添ポリイソブテン等の炭化水素油、ミリスチン酸オクチルドデシル、パルミチン酸２−エチルヘキシル、トリ（カプリル・カプリン酸）グリセリル等のエステル油、ジメチコン、ジメチコノール等のシリコーン油等が挙げられる。中でも塗布性の観点からミリスチン酸オクチルドデシルおよびスクワランが好ましく、ミリスチン酸オクチルドデシルおよびスクワランとの併用がより好ましい。これらは１種または２種以上を含有することができる。 Specific examples of component (C) are not particularly limited, but liquid oil such as liquid paraffin, squalane, α-olefin oligomer, hydrogenated polyisobutene, octyldodecyl myristate, 2-ethylhexyl palmitate, tri (Capryl / capric acid) Ester oil such as glyceryl, silicone oil such as dimethicone, dimethiconol and the like. Among these, octyldodecyl myristate and squalane are preferable from the viewpoint of applicability, and combined use with octyldodecyl myristate and squalane is more preferable. These can contain 1 type, or 2 or more types.
成分（Ｃ）の含有量は、特に限定されるものではないが、塗布直後における塗布膜の存在感および翌朝の塗布膜の存在感を向上させる観点から、好ましくは２〜２０％、より好ましくは４〜１５％である。成分（Ｃ）の含有量が２％未満では、塗布直後における塗布膜の存在感および翌朝の塗布膜の存在感を損なう恐れがあり、２０％を超えると、塗布中のみずみずしさを損なう恐れがある。 The content of component (C) is not particularly limited, but is preferably 2 to 20%, more preferably from the viewpoint of improving the presence of the coating film immediately after coating and the presence of the coating film in the next morning. 4-15%. If the content of the component (C) is less than 2%, the presence of the coating film immediately after coating and the presence of the coating film in the next morning may be impaired, and if it exceeds 20%, the freshness during coating may be impaired. is there.
本発明において、液状油とは常温（２５℃）において液体の油であることをさす。 In the present invention, liquid oil means oil that is liquid at room temperature (25 ° C.).
本発明において、乳化安定性の観点から、成分（Ｄ）非イオン性界面活性剤を含有することができる。 In the present invention, from the viewpoint of emulsion stability, a component (D) nonionic surfactant can be contained.
成分（Ｄ）の具体例としては、特に限定されるものではないが、モノステアリン酸ソルビタン、モノオレイン酸ソルビタン等のソルビタン脂肪酸エステル、ステアリン酸グリセリル、イソステアリン酸グリセリル等のグリセリン脂肪酸エステル、ポリオキシエチレン硬化ヒマシ油等が挙げられる。中でもべたつき抑制の観点からモノステアリン酸ソルビタンが好ましい。これらは１種または２種以上を含有することができる。 Specific examples of component (D) include, but are not limited to, sorbitan fatty acid esters such as sorbitan monostearate and sorbitan monooleate, glycerin fatty acid esters such as glyceryl stearate and glyceryl isostearate, polyoxyethylene Examples include hardened castor oil. Among them, sorbitan monostearate is preferable from the viewpoint of stickiness suppression. These can contain 1 type, or 2 or more types.
成分（Ｄ）の含有量は、特に限定されるものではないが、好ましくは０．１〜１．５％である。成分（Ｄ）の含有量が０．１％未満では、成分（Ｃ）の乳化安定性を損なう恐れがあり、１．５％を超えると塗布中のみずみずしさを損なう恐れがある。 Although content of a component (D) is not specifically limited, Preferably it is 0.1 to 1.5%. If the content of the component (D) is less than 0.1%, the emulsification stability of the component (C) may be impaired, and if it exceeds 1.5%, the freshness may be impaired during application.
本発明において、乳化安定性とは、皮膚用乳化化粧料表面の液滴の有無のことである。成分（Ｄ）を含有しない場合は、皮膚用乳化化粧料調製後、２４時間経過後に確認すると表面に成分（Ｃ）の一部と考えられる液滴が現れる場合がある。液滴が現れても本発明の効果には影響を与えないが、外観として品質が悪い印象を与えるため、成分（Ｄ）を含有し、液滴が現れない状態にすることが好ましい。 In the present invention, the emulsion stability means the presence or absence of droplets on the surface of the emulsified cosmetic for skin. When the component (D) is not contained, droplets considered to be a part of the component (C) may appear on the surface after confirmation of 24 hours after the preparation of the emulsified cosmetic for skin. Even if droplets appear, the effect of the present invention is not affected, but in order to give an impression of poor quality in appearance, it is preferable to contain the component (D) so that no droplets appear.
成分（Ａ）において、中和剤を必要とする場合のアルカリ剤は、特に限定されるものではないが、具体例としては、例えば、水酸化カリウム、２−アミノ−２−メチル−１，３−プロパンジオール、Ｌ−アルギニン、モルホリン等が挙げられる。 In the component (A), the alkali agent in the case where a neutralizing agent is required is not particularly limited, but specific examples thereof include potassium hydroxide, 2-amino-2-methyl-1,3, and the like. -Propanediol, L-arginine, morpholine and the like.
その他、陰イオン性界面活性剤、陽イオン性界面活性剤、両性界面活性剤、上記成分（Ｄ）以外の非イオン性界面活性剤、溶剤、保湿剤、ビタミン類、防腐剤、酸化防止剤、紫外線吸収剤、キレート剤、着色剤、香料、植物抽出液等を含有することができ、これらは１種または２種以上含有してもよい。 In addition, anionic surfactants, cationic surfactants, amphoteric surfactants, nonionic surfactants other than the above component (D), solvents, humectants, vitamins, preservatives, antioxidants, An ultraviolet absorber, a chelating agent, a coloring agent, a fragrance | flavor, a plant extract, etc. can be contained and these may contain 1 type (s) or 2 or more types.
本発明の皮膚用乳化化粧料の粘度は、特に限定されるものではないが、１５，０００〜７０，０００ｍＰａ・ｓであることが好ましい。皮膚用乳化化粧料の粘度が１５，０００ｍＰａ・ｓを下回ると、皮膚用乳化化粧料の粘度が低く、塗布中に薄く広がりすぎるため、塗布直後における塗布膜の存在感および翌朝の塗布膜の存在感を損なう恐れがある。一方で、皮膚用乳化化粧料の粘度が７０，０００ｍＰａ・ｓを上回ると、粘度が高く崩れにくいので、塗布中のみずみずしさを損なう恐れがある。 The viscosity of the emulsified cosmetic for skin of the present invention is not particularly limited, but is preferably 15,000 to 70,000 mPa · s. When the viscosity of the emulsified cosmetic for skin is less than 15,000 mPa · s, the viscosity of the emulsified cosmetic for skin is low and spreads too thin during application, so the presence of the applied film immediately after application and the presence of the applied film the next morning There is a risk of losing the feeling. On the other hand, if the viscosity of the emulsified cosmetic for skin exceeds 70,000 mPa · s, the viscosity is so high that it is difficult to collapse, so that there is a risk of impairing freshness during application.
本発明の皮膚用乳化化粧料の粘度は、常法により調製した当該乳化化粧料をサンプル瓶（食品１４０：第一硝子株式会社製）に１２０ｇ充填し、２５℃で２４時間静置した後に、ヘリカルスタンド付Ｂ型粘度計（モデル：デジタル粘度計ＴＶＢ−１０Ｍ、東機産業株式会社製）を使用し、粘度１５，０００〜５０，０００ｍＰａ・ｓ未満の場合はＭ４号ローターを用いて２０℃、１２ｒｐｍで１分間回転させた後に測定した。粘度が５０，０００ｍＰａ・ｓ以上の場合はＭ４号ローターを用いて２０℃、６ｒｐｍで１分間回転させた後に測定した。 The viscosity of the emulsified cosmetic for skin of the present invention was filled with 120 g of the emulsified cosmetic prepared by a conventional method in a sample bottle (Food 140: manufactured by Daiichi Glass Co., Ltd.) and allowed to stand at 25 ° C. for 24 hours. Use a B-type viscometer with a helical stand (model: Digital Viscometer TVB-10M, manufactured by Toki Sangyo Co., Ltd.), and if the viscosity is less than 15,000 to 50,000 mPa · s, use an M4 rotor at 20 ° C. , Measured after rotating at 12 rpm for 1 minute. When the viscosity was 50,000 mPa · s or more, measurement was performed after rotating for 1 minute at 20 ° C. and 6 rpm using an M4 rotor.
本発明の皮膚用乳化化粧料のｐＨは４．０〜９．０に調整することが好ましく、４．０〜７．０がより好ましい。 The pH of the emulsified cosmetic for skin of the present invention is preferably adjusted to 4.0 to 9.0, more preferably 4.0 to 7.0.
以下に実施例を挙げて本発明をさらに詳細に説明するが、これらは本発明を何ら限定するものではない。 The present invention will be described in more detail with reference to examples below, but these do not limit the present invention.
表１〜３に示される皮膚用乳化化粧料を、常法により調製した。調製した皮膚用乳化化粧料１．５ｇを手でとり、顔全体に十分なじませ、各評価項目、すなわち、塗布中のみずみずしさ、塗布直後における塗布膜の存在感、翌朝の塗布膜の存在感に関して評価試験を行った。なお、塗布直後における塗布膜の存在感とは、入浴時に洗顔し、皮膚用乳化化粧料を塗布した直後に、塗布膜が存在している感覚があることをさす。また、翌朝の塗布膜の存在感とは、皮膚用乳化化粧料を塗布して８時間睡眠し、起床したときに、塗布膜が存在している感覚があることをさす。 The emulsified cosmetics for skin shown in Tables 1 to 3 were prepared by a conventional method. Take 1.5 g of the emulsified cosmetic for skin prepared by hand and apply it to the entire face. Each evaluation item, that is, freshness during application, presence of coating film immediately after application, presence of coating film in the next morning An evaluation test was conducted. In addition, the presence of the coating film immediately after application means that there is a feeling that the coating film exists immediately after washing the face at the time of bathing and applying the emulsified cosmetic for skin. The presence of the coating film in the next morning means that there is a feeling that the coating film exists when the emulsified cosmetic for skin is applied, sleeps for 8 hours, and gets up.
（評価方法）
パネラー１０名が皮膚用乳化化粧料を使用し、各項目に関して官能評価を行った。各人が項目毎に５点（非常に良好）、４点（より良好）、３点（良好）、２点（不良）、１点（非常に不良）の５段階で評価して全員の平均点を算出した後、下記判定基準に従って判定した。その上で、判定基準の結果としてすべての評価項目が３以上を合格とした。
(Evaluation methods)
Ten panelists used the emulsified cosmetic for skin and performed sensory evaluation on each item. Each person's average of 5 points (very good), 4 points (more good), 3 points (good), 2 points (bad), 1 point (very bad) After calculating the points, the points were determined according to the following criteria. In addition, as a result of the determination criteria, all the evaluation items passed 3 or more.
（平均点の判定基準）
４．５点以上 ： ５
４．０点以上 ： ４
３．０点以上 ： ３
２．０点以上 ： ２
２．０点未満 ： １
(Criteria for average score)
4.5 points or more: 5
4.0 points or more: 4
3.0 points or more: 3
2.0 points or more: 2
Less than 2.0 points: 1
表４に示される皮膚用乳化化粧料を、常法により調製し、乳化安定性について評価した。調製した皮膚用乳化化粧料を第一硝子株式会社製食品１４０ガラス瓶に１３０ｇ充填し、２４時間後の乳化安定性を目視にて確認した。 The emulsified cosmetics for skin shown in Table 4 were prepared by a conventional method and evaluated for emulsion stability. The prepared emulsified cosmetic for skin was filled with 130 g in a 140 glass bottle made by Daiichi Glass Co., Ltd., and the emulsion stability after 24 hours was visually confirmed.
（評価方法）
調製した皮膚用乳化化粧料の表面に液滴がなければ○、液滴があれば×とした。
(Evaluation methods)
If there was no liquid drop on the surface of the prepared emulsified cosmetic for skin, it was marked with ○, and if there was a liquid drop, it was marked with x.
（第１評価試験）
第１評価試験において、成分（Ａ）の含有量に関して皮膚用乳化化粧料を評価した。表１に、皮膚用乳化化粧料の成分とその含有量、および評価結果を示す。
(First evaluation test)
In the first evaluation test, the emulsified cosmetic for skin was evaluated with respect to the content of the component (A). Table 1 shows the components of the emulsified cosmetic for skin, their contents, and the evaluation results.
表１に示す実施例１〜９より、塗布中のみずみずしさ、塗布直後における塗布膜の存在感、翌朝の塗布膜の存在感に関して、良好な結果を得た。 From Examples 1 to 9 shown in Table 1, good results were obtained with respect to freshness during coating, presence of the coating film immediately after coating, and presence of the coating film in the next morning.
（第２評価試験）
第２評価試験において、成分（Ｂ）の含有量に関して皮膚用乳化化粧料を評価した。表２に、皮膚用乳化化粧料の成分とその含有量、および評価結果を示す。
(Second evaluation test)
In the second evaluation test, the emulsified cosmetic for skin was evaluated with respect to the content of the component (B). Table 2 shows the components of the emulsified cosmetic for skin, the content thereof, and the evaluation results.
表２に示す実施例１０〜１７より、塗布中のみずみずしさ、塗布直後における塗布膜の存在感、翌朝の塗布膜の存在感に関して、良好な結果を得た。 From Examples 10 to 17 shown in Table 2, good results were obtained regarding freshness during coating, presence of the coating film immediately after coating, and presence of the coating film in the next morning.
（第３評価試験）
第３評価試験において、成分（Ｃ）の含有量に関して皮膚用乳化化粧料を評価した。表３に、皮膚用乳化化粧料の成分とその含有量、および評価結果を示す。
(Third evaluation test)
In the third evaluation test, the emulsified cosmetic for skin was evaluated with respect to the content of the component (C). Table 3 shows the components of the emulsified cosmetic for skin, their contents, and the evaluation results.
表３に示す実施例１８〜２３より、塗布中のみずみずしさ、塗布直後における塗布膜の存在感、翌朝の塗布膜の存在感に関して、良好な結果を得た。 From Examples 18 to 23 shown in Table 3, good results were obtained regarding freshness during coating, presence of the coating film immediately after coating, and presence of the coating film in the next morning.
（第４評価試験）
第４評価試験において、成分（Ｄ）の含有量に関して皮膚用乳化化粧料を評価した。表４に、皮膚用乳化化粧料の成分とその含有量、および評価結果を示す。
(Fourth evaluation test)
In the fourth evaluation test, the emulsified cosmetic for skin was evaluated with respect to the content of the component (D). Table 4 shows the components of the emulsified cosmetic for skin, their contents, and the evaluation results.
表４に示す実施例２４〜２８より、乳化安定性に関して良好な結果を得た。 From Examples 24-28 shown in Table 4, the favorable result regarding the emulsion stability was obtained.
以下に皮膚用乳化化粧料の処方例を例示する。実施例３０および３１についても、塗布中のみずみずしさ、塗布直後における塗布膜の存在感、翌朝の塗布膜の存在感および乳化安定性について評価し、全て良好であった。 Examples of emulsified cosmetics for skin are shown below. In Examples 30 and 31, the freshness during coating, the presence of the coating film immediately after coating, the presence of the coating film in the next morning and the emulsion stability were all evaluated as good.
実施例３０
成 分 含有量（質量％）
（Ａ）（アクリレーツ／アクリル酸アルキル
（Ｃ１０−３０））クロスポリマ− ０．２００
（Ａ）（アクリロイルジメチルタウリンアンモニウム
／ＶＰ）コポリマー ０．４６０
（Ｂ）ステアリン酸ステアリル ０．３００
（Ｃ）ミリスチン酸オクチルドデシル ５．０００
（Ｃ）スクワラン ５．６００
（Ｄ）モノステアリン酸ソルビタン ０．４００
精製水 ７３．４８７
Ｌ−アルギニン ０．２００
濃グリセリン ３．０００
１，３−ブチレングリコール ７．０００
パラオキシ安息香酸メチル ０．３００
ポリオキシエチレンメチルグルコシド ２．０００
トリメチルグリシン ２．０００
エデト酸二ナトリウム ０．０５０
ワイルドタイムエキス（固形分） ０．００１
メマツヨイグサエキス（固形分） ０．００１
ヒメフウロエキス（固形分） ０．００１
合計 １００．０００
Example 30
Component Content (mass%)
(A) (Acrylates / alkyl acrylate (C10-30)) Cross polymer 0.200
(A) (acryloyldimethyltaurate ammonium / VP) copolymer 0.460
(B) Stearyl stearate 0.300
(C) Octyldodecyl myristate 5.000
(C) Squalane 5.600
(D) Sorbitan monostearate 0.400
Purified water 73.487
L-Arginine 0.200
Concentrated glycerin 3.000
1,3-butylene glycol 7.00
Methyl paraoxybenzoate 0.300
Polyoxyethylene methyl glucoside 2.000
Trimethylglycine 2.000
Edetate disodium 0.050
Wild time extract (solid content) 0.001
Evening primrose extract (solid content) 0.001
Himefuuro extract (solid content) 0.001
Total 100.000
実施例３１
成 分 含有量（質量％）
（Ａ）（アクリレーツ／アクリル酸アルキル
（Ｃ１０−３０））クロスポリマ− ０．２００
（Ａ）（アクリロイルジメチルタウリンアンモニウム
／ＶＰ）コポリマー ０．４６０
（Ｂ）ステアリン酸ステアリル ０．３００
（Ｃ）ミリスチン酸オクチルドデシル ５．０００
（Ｃ）スクワラン ５．６００
（Ｄ）モノステアリン酸グリセリル ０．２００
（Ｄ）ポリオキシエチレン硬化ヒマシ油（６０Ｅ．Ｏ） ０．２００
精製水 ７３．４８７
Ｌ−アルギニン ０．２００
濃グリセリン ３．０００
１，３−ブチレングリコール ７．０００
パラオキシ安息香酸メチル ０．３００
ポリオキシエチレンメチルグルコシド ２．０００
トリメチルグリシン ２．０００
エデト酸二ナトリウム ０．０５０
ワイルドタイムエキス（固形分） ０．００１
メマツヨイグサエキス（固形分） ０．００１
ヒメフウロエキス（固形分） ０．００１
合計 １００．０００
Example 31
Component Content (mass%)
(A) (Acrylates / alkyl acrylate (C10-30)) Cross polymer 0.200
(A) (acryloyldimethyltaurate ammonium / VP) copolymer 0.460
(B) Stearyl stearate 0.300
(C) Octyldodecyl myristate 5.000
(C) Squalane 5.600
(D) Glyceryl monostearate 0.200
(D) Polyoxyethylene hydrogenated castor oil (60E.O) 0.200
Purified water 73.487
L-Arginine 0.200
Concentrated glycerin 3.000
1,3-butylene glycol 7.00
Methyl paraoxybenzoate 0.300
Polyoxyethylene methyl glucoside 2.000
Trimethylglycine 2.000
Edetate disodium 0.050
Wild time extract (solid content) 0.001
Evening primrose extract (solid content) 0.001
Sea cucumber extract (solid content) 0.001
Total 100.000
本発明は、塗布中にみずみずしい感触を得ることができ、塗布直後における塗布膜の存在感および翌朝の塗布膜の存在感を実感できる皮膚用乳化化粧料を提供できる。 INDUSTRIAL APPLICABILITY The present invention can provide a skin emulsified cosmetic that can provide a fresh feel during application and can realize the presence of the coating film immediately after application and the presence of the coating film in the next morning.
Claims (4)
（Ｂ）固形油およびペースト状油から選ばれる１種以上
（Ｃ）液状油
を含有し、成分（Ａ）の含有量が０．２〜１．５質量％であることを特徴とする皮膚用乳化化粧料。 (A) one or more types selected from acrylic acid / alkyl methacrylate copolymers and acryloyldimethyltaurine salt-containing copolymers (B) one or more types selected from solid oils and pasty oils (C) containing liquid oils An emulsified cosmetic for skin, wherein the content of component (A) is 0.2 to 1.5% by mass.
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