JP3562015B2 - Skin cleaning supplies - Google Patents

Description

（式中、Ｒ^１１、Ｒ^１２及びＲ^１３はそれぞれ独立的に水素又は直鎖もしくは分岐鎖の飽和もしくは不飽和の炭素数８〜２４のアシル基である。但し、Ｒ^１１、Ｒ^１２及びＲ^１３は同時に水素ではない。）
で表される化合物を好ましく使用することができ、一般にモノ−、ジ−、及びトリアシル化物の混合物である。この場合、（モノアシル化物）／（ジアシル化物＋トリアシル化物）の重量比としては７０／３０〜３０／７０が好ましい。
【００４０】
式（１２）において、Ｒ^１１、Ｒ^１２及びＲ^１３の炭素数８〜２４のアシル基の中でも、炭素数１０〜１８のアシル基が好ましく、特にラウロイル基、ミリストイル基、パルミトイル基が好ましい。
【００４１】
成分（Ｂ）の糖系非イオン性界面活性剤は１種又は２種以上を組み合わせて用いることができる。また、洗浄剤組成物中の成分（Ｂ）の糖系非イオン性界面活性剤の含有量は、少なすぎると十分な洗浄力が得られず、多すぎると泡吐出容器の多孔質膜の目詰まりを起こしやすいので、５〜１５重量％とする。
【００４２】
本発明において使用する洗浄剤組成物には、更に、成分（Ｃ）としてポリオール類を配合することが好ましい。
【００４３】
このような成分（Ｃ）のポリオール類としては、プロピレングリコール、１，３−ブチレングリコール、グリセリン、ソルビトール、マルチトール、キシリトール、グルコース、ポリエチレングリコール４００、ポリエチレングリコール６００、ジプロピレングリコール、ジグリセリン、１，３−プロピレングリコール、ヘキシレングリコール、スクロース、ポリオキシエチレングリコシド誘導体などを挙げることができる。
【００４４】
成分（Ｃ）のポリオール類は１種又は２種以上を組み合わせて用いることができる。また、成分（Ｃ）のポリオール類の洗浄剤組成物中の含有量は、好ましくは３〜３０重量％、より好ましくは５〜３０重量％とする。この範囲内で含有させることにより、洗浄剤組成物の泡で皮膚をマッサージした場合の感触が良好となり、しかも洗浄剤組成物を洗い流した後の肌のしっとり感を良好なものとすることができる。
【００４５】
本発明において使用する洗浄剤組成物には、更に、成分（Ｄ）としてエタノールを配合することが好ましい。成分（Ｄ）のエタノールの洗浄剤組成物中の含有量は、好ましくは０．１〜１０重量％、より好ましくは１〜５重量％とする。この範囲内で配合することにより、クリーミーな泡が得られ、洗浄力も向上する。
【００４６】
また、本発明の皮膚洗浄用品に使用する洗浄剤組成物には、成分（Ａ）及び（Ｂ）の界面活性剤に加えて、他の界面活性剤、例えば、高級脂肪酸塩、モノ直鎖アルキルリン酸エステル塩、直鎖状アルキルベンゼンスルホン酸塩、アシル化アミノ酸塩などのアニオン系界面活性剤；カルボベタイン系、スルホベタイン系、イミダゾリニウムベタイン系、アミドベタイン系等の両性界面活性剤；直鎖もしくは分岐鎖のアルキル基を有するモノもしくはジアルキル付加型第４級アンモニウム塩およびそのアルキル基にアルキレンオキサイドを付加したカチオン系界面活性剤；あるいはポリオキシアルキレン系、ポリグリセリン脂肪酸エステル系、多価アルコール脂肪酸エステル系、脂肪酸ジエタノールアミド系、トリアルキルアミンオキサイド系などのノニオン系界面活性剤を必要に応じて適宜添加することができる。
【００４７】
このような両性界面活性剤の好ましい例として、特に、ヒドロキシプロピルスルホベタイン、脱塩処理した２級のイミダゾリニウムベタイン等を挙げることができる。また、アニオン系界面活性剤の好ましい例としては、炭素数８〜２２の脂肪酸のアルカリ金属、アルカリ土類金属、アルカノールアミンあるいは塩基性アミノ酸の塩等を挙げることができる。また、カチオン系界面活性剤の好ましい例としては、特に、炭素数１２〜１６の直鎖モノアルキル第４級アンモニウム塩、炭素数２０〜２８の分岐アルキル基を有する第４級アンモニウム塩等を挙げることができる。ノニオン系界面活性剤の好ましい例としては、炭素数８〜２２のアルキル基を有する脂肪酸ジエタノールアミド、炭素数１２〜１４の２級アルキル基を有するジメチルアミンオキサイド、炭素数１２〜１４の２級アルキル基を有するポリオキシエチレンアルキルエーテル等を好ましく挙げることができる。
【００４８】
これらの両性界面活性剤、アニオン系界面活性剤、カチオン系界面活性剤あるいはノニオン系界面活性剤は１種又は２種以上組み合わせて用いることができ、それらの配合量は、洗浄剤組成物中に合計で好ましくは０．５〜３０重量％、より好ましくは１〜２０重量％である。
【００４９】
また、本発明の皮膚洗浄用品に使用する洗浄剤組成物は、その粘度が高すぎると多孔質膜の透過が困難となり、クリーミーな泡が得られにくくなる。従って、２５℃におけるその粘度を１〜１００ｃｐｓ、好ましくは１〜５０ｃｐｓとする。
【００５０】
本発明の皮膚洗浄用品に使用する洗浄剤組成物には、必要に応じて、更に通常の洗浄剤組成物に用いられる成分、例えば、ラノリン及びその誘導体、ミリスチン酸イソプロピル等のエステル類、やし油などのトリグリセライド等の油分、ポリグリセリン脂肪酸エステル等の保湿剤、トリクロサン、トリクロロカルバニリド等の殺菌剤、グリチルリチン酸ジカリウム、酢酸トコフェロール等の抗炎症剤、ジンクピリチオン、オクトピロックス等の抗フケ剤、メチルパラベン、ブチルパラベン等の防腐剤、エチレンジアミン四酢酸又はその塩、ヒドロキシエタンジホスホン酸又はその塩等のキレート剤、クエン酸、コハク酸等のｐＨ調整剤、塩化ナトリウムなどの塩類、その他パール化剤、香料、色素、紫外線吸収剤、酸化防止剤などを、本発明の効果を損わない範囲において配合することができる。
【００５１】
本発明において使用する洗浄剤組成物は、常法により前記成分を混合することにより製造することができる。
【００５２】
本発明の皮膚洗浄用品は以上の洗浄剤組成物を泡吐出容器に充填したものであるが、このような泡吐出容器としては、多孔質膜を有するものを使用する。これによりクリーミーな泡を生成し、皮膚の洗浄時に良好な使用感を得ることができる。ここで、多孔質膜としては、例えばスポンジ、焼結体、ネットなどを例示することができる。中でも、多孔質膜に付着残存した洗浄剤組成物が乾燥固化して目詰まりを起こした場合に、次回の吐出時に泡の流れによって、直ちに固化物を溶解して目詰まりを解消できるという点から薄肉のネットを使用することが好ましい。この場合、ネットのメッシュとしては、好ましくは５０〜５００メッシュ、より好ましくは１５０〜４００メッシュとする。この範囲のメッシュのネットを使用することにより、マッサージ性に優れ、クリーミーな泡を生成することができる。また、このようなメッシュの材質としては、ナイロン、ポリエステル等を好ましく例示することができる。
【００５３】
本発明の皮膚洗浄用品において使用する泡吐出容器には、このような多孔質膜を少なくとも一枚、好ましくは複数枚配設することが好ましく、特に経済性、泡の安定性等の点から２枚配設することが好ましい。
【００５４】
なお、泡吐出容器としては、一定量の洗浄剤組成物を一定量の空気と混合し、泡状態として吐出できるものであればいずれでもよく、例えば、軟質容器の胴部を手指で押圧することにより泡を吐出するスクイズフォーマー（実開昭５８−１７４２７２号公報、実開昭６２−４２７８７号公報、特公昭５２−１６５６７号公報等）や、ポンプ機構を備えたキャップの頭を手指で押圧することにより泡を吐出するポンプフォーマー（実開平３−７９６３号公報、実開昭６２−１０３４５８号公報等）などを例示することができる。具体的には、図１に示すような泡吐出容器を好ましく例示することができる。
【００５５】
図１の泡吐出容器１０は、スクイズ性を有する容器本体１１の開口部１１ａにキャップ１２を螺着し、キャップ１２の内部中央位置に気液混合部１３を設けている。そして、気液混合部１３はチューブ連結部１３ａと多孔質膜１３ｂとを配設した構造となっている。
【００５６】
また、泡吐出容器１０においては、ディップチューブ１４が気液混合部１３のチューブ連結部１３ａに一定の隙間を介して嵌着され、気液混合部１３に連通する状態で、キャップ１２に支持されているとともに、ディップチューブ１４が容器本体１１内に挿入されている。キャップ１２の気液混合部１３の吐出側（図の上方側）には、開閉自在のノズル部１５が螺着されており、そのノズル部１５は、キャップ１２に対し９０度回転することにより閉じ位置と開き位置とに切換設定されている。その閉じ位置では、ノズル部１５の環状に突出したシーリング部１６が気液混合部１３の上方に位置したプラグ部１７に密着し、開き位置ではシーリング部１６がプラグ部１７から隔離して吐出路を形成する。なお、ノズル部１５の吐出口１８には、その先端に多孔質膜固定具１８ａと多孔質膜１８ｂとが配設されており、多孔質膜固定具１８ａにより多孔質膜１８ｂが嵌着固定されている。
【００５７】
また、泡吐出容器１０においては、キャップ１２のエア戻り路２１にボール弁２２が配設されており、そのボール弁２２は、泡吐出時にエア戻り路２１の上方のシール部２１ａに密着してスクイズによる容器本体１１内の圧力を上昇させる。そして、ボール弁２２は、泡吐出終了後、エア戻り路２１の下方の突起部２１ｂに係止され、スクイズを解除された容器本体１１の容器復元力に起因する容器内負圧力により外部エアを容器本体１１内へ導入する。
【００５８】
泡吐出容器１０は、次のような動作によって泡を吐出する。
（１）ノズル部１５を回動することにより、ノズル部１５のシーリング部１６をキャップ１２のプラグ部１７から隔離し、図１の矢印Ｘで示す泡吐出経路を形成する。
（２）人手にて容器本体１１をスクイズすることにより、キャップ１２の気液混合部１３に直接導入される空気（又は液体）と、ディップチューブ１４を介して気液混合部１３に導入される液体（又は空気）とを混合して多孔質膜１３ｂを通過させることにより泡を形成し、この泡を上述の泡吐出経路Ｘを経て、ノズル部１５の吐出口１８の先端に設けられた多孔質膜１８ｂを介して、吐出口１８から吐出させる。このとき、ボール弁２２はエア戻り路のシール部２１ａに密着して容器本体１１内の圧力を上昇させる。
【００５９】
（３）泡吐出後、ボール弁２２はエア戻り路２１の突起部２１ｂに係止され、スクイズを解除された容器本体１１の容器復元力に起因する容器内負圧力により、外部エアを、図１の矢印Ｙで示すエア戻り経路から容器本体１１内へ導入する。このとき、外部エアは、前述（２）の泡吐出経路Ｘの逆経路をも通ろうとするが、多孔質膜１８ｂの残留泡が抵抗となるため、上述のエア戻り経路Ｙを通ることになる。なお、多孔質膜１８ｂの残留泡が抵抗となり、エア戻り経路Ｙへの空気導入が緩やかな場合は、エア戻り路２１及びボール弁２２をキャップ１２の外部に直接連通する位置に設けてもよい。
【００６０】
本発明の皮膚洗浄用品は、洗浄剤組成物が膜を通過することによって泡が発生するが、発生した泡の泡密度は一般に０．０３〜０．２５ｇ／ｍｌとなる。この範囲の密度の泡は、特に洗浄力、マッサージ性に優れたものとなる。なお、泡密度は、１００ｍｌのメスシリンダーに泡吐出容器から泡を吐出させ、重量を測定することにより、求めることができる。
【００６１】
本発明の皮膚洗浄用品は、洗顔フォーム、クレンジングフォーム、メイク落としフォーム、シェービングフォーム、シャンプーフォーム、身体洗浄フォームなどとして極めて有用である。更に、食器用洗浄用品としても使用することができる。
【００６２】
【作用】
本発明の皮膚洗浄用品においては、特定のアニオン系界面活性剤と糖系非イオン系界面活性剤とから洗浄剤組成物を構成し、これを多孔質膜を有する泡吐出容器に充填する。この泡吐出容器から、その多孔質膜を経て吐出させた泡は、高い洗浄力を有し、しかも均一で密度が小さくクリーミーなものとなり、且つ保形性も良好となる。よって、マッサージしやすく、しかも落ちにくい汚れを良好な使用感で十分に洗浄することが可能となる。
【００６３】
【実施例】
次に、本発明を以下の実施例にしたがって具体的に説明する。なお、実施例５及び実施例６は、成分（Ｂ）として、アルキルサッカライド系界面活性剤以外の糖系非イオン性界面活性剤を使用した参考例である。
【００６４】
実施例１〜３及び比較例１〜３
表１に示す組成の成分を均一に混合して、洗浄剤組成物を調製し、図１に示したスクイズフォーマーに充填して皮膚洗浄用品を製造した。得られた皮膚洗浄用品から泡を吐出させ、その泡について、専門パネラー１０名により、以下に説明するように泡質及び洗浄力を評価した。その結果を表１に示す。
【００６５】
なお、表において、「ＴＥＡ］はトリエタノールアミン残基であり、「ＰＯＥ」はポリオキシエチレン残基であり、「ＰＯＰ」はポリオキシプロピレン残基である。
【００６６】
洗浄力評価方法
皮膚洗浄用品から吐出させた泡０．１ｇで、口紅を１０ｍｇ／５ｃｍ^２の割合で塗布した前腕を３０秒間マッサージした後に流水で洗い流し、残留した口紅の量を、以下の評価基準に従って目視にて判定した。
【００６７】
洗浄力評価基準
ランク 状態
○： ほぼ完全に落ちた場合
△： だいたい落ちた場合
×： あまり落ちていない場合
泡質評価方法
皮膚洗浄用品から１．０ｇの泡を、手のひらに吐出させ、その泡の質感を以下の評価基準に従って目視にて判定した。
【００６８】
泡質評価基準
ランク 状態
○： きめ細かく且つ安定な泡であった場合
△： 粗く消えやすい泡であった場合
×： 泡立たなかった場合
【００６９】
【表１】

【００７０】
表１の結果からわかるように、実施例の皮膚洗浄用品は洗浄力及び泡質について非常に優れた結果を示した。一方、比較例の皮膚洗浄用品は、同時に成分（Ａ）と成分（Ｂ）との界面活性剤を使用していないために、洗浄力と泡質とも不十分であった。
【００７１】
実施例４
表２に示す組成の成分を使用する以外は実施例１と同様にしてメイク落とし用洗顔料として皮膚洗浄用品を製造した。次に、１０名の専門パネラーにより、皮膚洗浄用品から吐出させた泡０．１ｇで、耐水性ファンデーションを５ｍｇ／５ｃｍ^２の割合で塗布した前腕を３０秒間洗浄し、残留した耐水性ファンデーションの量を目視にて判定したところ、ほぼ完全に落とすことができた。
【００７２】
【表２】
成分名 重量％
２−ヘキシルデシル硫酸ＴＥＡ塩 ３．０
２−ヘプチルウンデシルリン酸ＴＥＡ塩 ２．０
式（１０）のアルキルサッカライド １０．０
（Ｒ^６＝Ｃ_１２Ｈ_２５；ａ＝０；Ｇ＝グルコース；ｂ＝２）
ラウリン酸ＴＥＡ塩 ３．０
ミリスチン酸ＴＥＡ塩 ２．０
ＰＯＥ（３）−ｓｅｃ−アルキル（１２−１４）エーテル ３．０
ラウロイルジエタノールアミド ３．０
ラウリン酸ソルビタン ０．５
１，３−ブチレングリコール ５．０
エタノール ２．０
Ｎａ_２ＳＯ_４ ０．５
ＢＨＴ ０．２
メチルパラベン ０．１
プロピルパラベン ０．１
ヒドロキシエタンジホスホン酸 ０．１
香料 微量
精製水 バランス
【００７３】
実施例５
表３に示す組成の成分を使用する以外は実施例１と同様にして全身用の皮膚洗浄用品を製造した。次に、１０名の専門パネラーにより、皮膚洗浄用品から吐出させた泡で全身を洗浄したところ、皮膚に付着した汚れをほぼ完全に落とすことができた。
【００７４】
【表３】

【００７５】
実施例６
表４に示す組成の成分を使用する以外は実施例１と同様に洗顔料として皮膚洗浄用品を製造した。次に、１０名の専門パネラーにより、皮膚洗浄用品から吐出させた泡０．１ｇで、モデル皮脂を１０ｍｇ／５ｃｍ^２の割合で塗布した前腕を３０秒間マッサージし、残留したモデル皮脂の量を目視にて判定したところ、ほぼ完全に落とすことができた。
【００７６】
【表４】

【００７７】
実施例７
表５に示す組成の成分を使用する以外は実施例１と同様にしてシャンプー用の皮膚洗浄用品を製造した。次に、１０名の専門パネラーにより、皮膚洗浄用品から吐出させた泡３ｇで、ポリマー系エアゾール（ＬＰＧ）整髪料を０．１ｇ使用して整髪した毛髪を洗髪したところ、整髪料をほぼ完全に洗い流すことができた。
【００７８】
【表５】

【００７９】
比較例４〜１０
実施例１〜７で使用した洗浄剤組成物を泡吐出容器に充填しないで使用したところ、いずれも泡立ちが不十分であり、肌の上から非常に流れやすいものであった。そのため、充分な洗浄力も得られなかった。
【００８０】
【発明の効果】
本発明の皮膚洗浄用品によれば、低刺激で高洗浄力の均質でクリーミーな泡が得られる。その泡を使用することにより、良好な使用感で、落としにくい油性汚れ、例えば、口紅、アイメイク、耐水性ファンデーション等のメイクを良好に洗浄することができる。
【図面の簡単な説明】
【図１】泡吐出容器の部分拡大断面図である。
【符号の説明】
１０ 泡吐出容器
１１ 容器本体
１３ 気液混合部
１３ｂ 多孔質膜
１５ ノズル部
１８ 吐出口
１８ａ 多孔質膜固定具
１８ｂ 多孔質膜
Ｘ 泡吐出経路
Ｙ エア戻り経路[0001]
[Industrial applications]
TECHNICAL FIELD The present invention relates to a skin cleaning product in which a cleaning composition is filled in a foam discharge container. More specifically, the present invention relates to a skin cleansing product which has a good feeling in use, has high detergency, and discharges foam which is creamy and has good shape retention.
[0002]
[Prior art]
BACKGROUND ART Conventionally, foaming detergent compositions to be discharged from a foam discharge container in the form of a foam have been developed for various uses such as bathing, face washing, and hair washing. As a foam discharge container for filling such a foaming detergent composition, various devices have been devised to enable stable discharge of foam. For example, there is known a container (Japanese Patent Publication No. 52-16567) in which a detergent composition is mixed with air and passed through a foam generating means such as a porous body to discharge the foam in the form of a foam.
[0003]
Further, as a foaming detergent composition for discharging fine bubbles from such a foam discharge container, one containing a surfactant, a monohydric alcohol and a polyhydric alcohol has been proposed (JP-A-5-132700). Gazette). Also, in order to suppress skin irritation, maintain a constant surfactant concentration on the skin for a long time, and cleanse the skin with good reproducibility, a relatively low concentration of a low-irritant surfactant and a water-soluble polymer It has also been proposed to fill a squeeze foamer container with a detergent composition containing the same (Japanese Patent Application Laid-Open No. 5-506259).
[0004]
[Problems to be solved by the invention]
However, the cleaning composition filled in the conventional foam discharge container has a problem that the foam density is large and the shape retention is insufficient. For this reason, when the skin is massaged with the foam discharged from the foam discharge container, the foam disappears during the massage, and there is a problem that a sufficient massage feeling cannot be obtained. There was also a problem. This problem has been particularly remarkable in the case of washing a makeup product which is hard to fall off against sweat and the like, and a high setting power hair cosmetic containing a polymer having relatively low solubility in water.
[0005]
The present invention is intended to solve the above-mentioned problems of the prior art, and has a good feeling in use, has a high detergency, and discharges a creamy and good shape-retaining foam. The purpose is to provide supplies.
[0006]
[Means for Solving the Problems]
The present inventors have blended a sugar-based nonionic surfactant with a specific phosphate ester surfactant, sulfate ester surfactant or sulfonic acid surfactant among anionic surfactants. The cleaning composition thus obtained is filled in a foam discharge container having a porous film, and the foam discharged from the container through the porous film removes dirt that has been considered difficult to remove with a good feeling of use. They have found that they can be sufficiently washed, and have completed the present invention.
[0007]
That is, the present invention provides the following component (A)1-10% by weightas well ascomponent(B)5 to 15% by weight:
(A) at least one surfactant selected from the group consisting of a phosphate ester surfactant of the formula (1), a sulfate ester surfactant of the formula (2), and a sulfonic acid surfactant of the formula (3)
[0008]
Embedded image
(1) R¹R²CHCH₂OP (= O) (OX¹) (OX²)
(2) (R³-(Y)_a-OSO₃ ⁻)_nM^{n +}
(3) (R⁴− (Z) −SO₃ ⁻)_nM^{n +}
Ｒ In the formula (1), R¹Is a hydrocarbon group having 5 to 13 carbon atoms;²Is a hydrocarbon group having 5 to 11 carbon atoms. Where R¹And R²Is 12 to 22 in total. X¹And X²Is independently hydrogen, an alkali metal, ammonium, a basic amino acid residue or an alkanolamine residue having a hydroxyalkyl group having 2 to 3 carbon atoms. In the formulas (2) and (3), R³Is a hydrocarbon group having a branched chain and having 6 to 24 carbon atoms, Y is an oxyethylene group, a is a number of 0 to 10,⁴Is a hydrocarbon group having a branched chain and having 6 to 24 carbon atoms, and Z is a group represented by formulas (4) to (9).
[0009]
Embedded image
(4) -CHR⁵− (CH₂)_b-C₆H₄−
(5) -CHR⁵−
(6) -CH = CH- (CH₂)_b−
(7) -CH (OH)-(CH₂)_b−
(8) -O- (CH₂CH₂O)_b-COCH₂CH (COOH)-
(9) -CH (COOCH₃)-
(In the formulas (4) to (9), R⁵Is hydrogen or a hydrocarbon group having 10 to 14 carbon atoms, and b is a number of 0 to 10. Where R⁴Is R⁵When is a hydrocarbon group, it may not have a branched chain. And M is hydrogen, an alkali metal, ammonium, a basic amino acid residue or an alkanolamine residue having a hydroxyalkyl group having 2 to 3 carbon atoms, or an aliphatic alkanolammonium; n is the valence of M. }; as well as
(B)Alkyl saccharidesSurfactant
A skin cleansing article characterized in that a cleansing composition having a viscosity of 1 to 100 cps (25 ° C.) is filled in a foam discharge container having a porous membrane.
[0010]
Hereinafter, the present invention will be described in detail.
[0011]
In the present invention, as the component (A), at least one of a phosphate ester surfactant of the formula (1), a sulfate ester surfactant of the formula (2) and a sulfonic acid surfactant of the formula (3) Use a surfactant.
[0012]
Here, R in equation (1)¹Is a hydrocarbon group having 5 to 13 carbon atoms, and the hydrocarbon group is preferably a linear or branched alkyl group. Preferred examples of such a straight-chain alkyl group include a hexyl group, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group and a dodecyl group. Preferred examples of the branched alkyl group include a 3-methylhexyl group, a 5-methylhexyl group, a 2-ethylhexyl group, a 5-methyloctyl group, a 3,5,5-trimethylhexyl group, and a 3,7-dimethyloctyl. And the like. Among them, a 3,5,5-trimethylhexyl group having two or more methyl groups in a side chain and a 3,7-dimethyloctyl group are particularly preferable.
[0013]
R in equation (1)²Is a hydrocarbon group having 5 to 11 carbon atoms, and the hydrocarbon group is preferably a linear or branched alkyl group. Preferred examples of such a straight-chain alkyl group include a pentyl group, a hexyl group, a heptyl group, an octyl group, a nonyl group, and the like. Preferred examples of the branched alkyl group include a 1-methylbutyl group, a 3-methylbutyl group, a 3-methylhexyl group, a 1,3,3-trimethylbutyl group, and a 1,5-dimethylhexyl group. . Among them, a 1,3,3-trimethylbutyl group having two or more methyl groups in a side chain and a 1,5-dimethylhexyl group are particularly preferable.
[0014]
Note that R in equation (1)¹And R²In selecting (1) and (2), the total number of carbon atoms of both is 12 to 22, preferably 12 to 20, from the viewpoint of detergency and washability.
[0015]
X in equation (1)¹And X²Is independently hydrogen, an alkali metal, ammonium, a basic amino acid residue or an alkanolamine residue having a hydroxyalkyl group having 2 to 3 carbon atoms, wherein the alkali metal includes lithium, sodium, potassium And the like.Examples of the basic amino acid residue include an arginine residue, a lysine residue, a histidine residue and an ornithine residue.Examples of the alkanolamine residue include a triethanolamine residue and diethanolamine. And a monoethanolamine residue.
[0016]
In the sulfate ester surfactant of the formula (2), R³Is a hydrocarbon group having a branched chain and having 6 to 24 carbon atoms. This is R³When there is no branched chain, the permeability to dirt tends to decrease, and when the carbon number is out of this range, the detergency decreases or the foaming property tends to decrease. is there. R³Preferred examples include a branched alkyl group. Specifically, 2-hexyldecyl group, 2-heptylundecyl group, 2-octyldodecyl group, 2- (1,3,3-trimethylbutyl) -5,7,7-trimethyloctyl group, 2-methyldecyl And the like.
[0017]
In the sulfate-based surfactant of the formula (2), M is hydrogen, an alkali metal, ammonium, a basic amino acid residue, an alkanolamine residue having a hydroxyalkyl group having 2 to 3 carbon atoms, or an aliphatic alkanolammonium. However, examples of the alkali metal therein include lithium, sodium, and potassium. Examples of the basic amino acid residue include an arginine residue, a lysine residue, a histidine residue, an ornithine residue and the like. Examples of the alkanolamine residue having a hydroxyalkyl group having 2 to 3 carbon atoms include a triethanolamine residue, a diethanolamine residue, and a monoethanolamine residue. Examples of the aliphatic alkanol ammonium include 2-amino-2-methyl-1-propanol and 2-amino-2-methyl-1,3-propanediol.
[0018]
In the formula (2), a is a number from 0 to 10, and when a is 0, a preferable sulfate ester-based surfactant of the formula (2) is a branched alkyl sulfate compound. Preferred examples thereof include sodium 2-hexyldecyl sulfate, sodium 2- (1,3,3-trimethylbutyl) -5,7,7-trimethyloctyl sulfate, and sodium 2-heptylundecyl sulfate. A preferred sulfate ester-based surfactant of the formula (2) when a is not 0 is a branched alkyl polyoxyethylene sulfate compound, and specific examples thereof include polyoxyethylene (2 or 4) 2-heptylundecyl sulfate triethanolamine. Salt, polyoxyethylene (7) 2-octyldodecyl sulfate triethanolamine salt, polyoxyethylene (4) 2-hexyldecyl sulfate triethanolamine salt and the like can be preferably mentioned.
[0019]
In the sulfonic acid-based surfactant of the formula (3), R⁴Is basically R in formula (2)³Can be defined in the same way. Further, M can be defined in the same manner as M in Expression (2). Where R⁴Is R⁵When is a hydrocarbon group, it may not have a branched chain. R in Z⁵Is hydrogen or a hydrocarbon group having 10 to 14 carbon atoms, preferably a linear or branched alkyl group,⁵When a hydrocarbon group is selected as⁴So that the total carbon number is 6 to 24.
[0020]
In the case where Z is a group of the formula (4), a preferred sulfonic acid-based surfactant of the formula (3) is a branched alkylbenzene sulfonic acid compound, and a preferred specific example is sodium 2-octyldodecylbenzenesulfonate. And sodium 2-heptylundecylbenzenesulfonate.
[0021]
When Z is a group of the formula (5), a preferred sulfonic acid surfactant of the formula (3) is a branched alkyl sulfonic acid compound, and specific preferred examples include sodium 1-octyldodecyl sulfonate. Can be.
[0022]
When Z is a group of the formula (6) or (7), a preferred sulfonic acid-based surfactant of the formula (3) is an α-olefinsulfonic acid compound, and as a specific example, 2-hexyldeca-1- Sodium ene sulfate and the like can be mentioned.
[0023]
When Z is a group of the formula (8), a preferred sulfonic acid-based surfactant of the formula (3) is a branched alkyloxyethylene sulfosuccinic acid compound, and a preferred specific example is polyoxyethylene (3) 2-ethylhexyl. Examples thereof include sodium sulfosuccinate and polyoxyethylene (1) sodium 2-heptylundecylsulfosuccinate.
[0024]
When Z is a group of the formula (9), a preferred sulfonic acid-based surfactant of the formula (3) is an α-sulfo-branched fatty acid methyl ester compound, and a preferred specific example is 1-methoxycarbonyltridecylsulfonic acid. Sodium and the like can be mentioned.
[0025]
The surfactant of the component (A) can be used alone or in combination of two or more. Further, the content of the surfactant of the component (A) in the detergent composition is as follows., 1-10% by weightIt is.By having the content within this range, high detergency can be obtained.
[0026]
In the present invention, a low-irritating sugar-based nonionic surfactant is used as the component (B). Preferred examples of such a sugar-based nonionic surfactant include the following alkylsaccharide-based surfactants, sugar amide-based surfactants, and sucrose fatty acid ester-based surfactants. Among them, an alkyl saccharide-based surfactant can be preferably used.
[0027]
Examples of the alkyl saccharide-based surfactant include compounds represented by the formula (10)
[0028]
Embedded image
(10) R⁶-O- (R⁷O)_a-G_b
(Where R⁶Is a linear or branched alkyl, alkenyl, or alkylphenyl group having 6 to 18 carbon atoms;⁷Is an alkylene group having 2 to 4 carbon atoms, G is a reducing sugar having 5 to 6 carbon atoms, a is a number of 0 to 10, and b is a number of 1 to 10. )
The compound represented by is preferably used.
[0029]
R in equation (10)⁶From the viewpoint of improving the cleaning properties such as foaming properties, among the straight-chain or branched-chain alkyl, alkenyl or alkylphenyl groups having 6 to 18 carbon atoms, straight-chain or branched having 8 to 14 carbon atoms Chain alkyl groups are preferred. Specifically, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl and the like can be preferably mentioned. Among these, a decyl group, a dodecyl group and a tetradecyl group are particularly preferred.
[0030]
Also, (R⁷The number a) representing the number of repetitions of O) (average degree of polymerization) is preferably 0 to 3 among 0 to 10, and particularly preferably 0, from the viewpoint of improving cleaning properties such as foaming properties.
[0031]
Further, G, which is a saccharide moiety, is preferably glucose, galactose or fructose among reducing sugars having 5 to 6 carbon atoms. As b indicating the number of repetitions of G (average degree of polymerization), a number of 1 to 4, and particularly a number of 1 to 1.4 is preferable among 1 to 10. Here, from the viewpoint of detergency, it is preferable that the alkyl saccharide-based surfactant in which b is 1 to 4 is contained in the entire alkyl saccharide-based surfactant of the formula (10) by 80% or more.
[0032]
Note that R⁶With increasing carbon number of⁶Since the degree of hydrophobicity of is increased, it is preferable to increase the numerical value of b in order to offset the degree of hydrophobicity. For example, R⁶When b has 8 to 11 carbon atoms, b is preferably a number of 1 to 1.4.⁶When b has 12 to 14 carbon atoms, b is preferably a number of 1.5 to 4.
[0033]
The sugar amide-based surfactant has the formula (11)
[0034]
Embedded image
(11) R⁸-CO-NR⁹X³
(Where R⁸Is a linear or branched alkyl, alkenyl or alkylphenyl group having 5 to 17 carbon atoms;⁹Is hydrogen, a linear or branched alkyl or alkenyl group having 1 to 18 carbon atoms,-(CH₂CH (R¹⁰) O)_c-H (where R¹⁰Is hydrogen or a methyl group, and c is a number from 0 to 10. ),
-CH₂CH₂OH, -CH₂CH (OH) CH₃Or -CH₂CH₂CH₂OH and X³Is a polyhydroxyalkyl group consisting of a sugar residue having 4 to 30 carbon atoms. ) Can be preferably used.
[0035]
R in equation (11)⁸Is a linear or branched alkyl group, alkenyl group or alkylphenyl group having 5 to 17 carbon atoms,⁸CO may be a group derived from capric acid, caprylic acid, lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, and particularly preferably a group derived from capric acid, lauric acid. it can.
[0036]
R⁹Examples of hydrogen, methyl, ethyl, n-propyl, isopropyl, n-butyl, t-butyl, n-hexyl, octyl, 2-ethylhexyl, decyl, dodecyl And a stearyl group, an isostearyl group, a polyethylene glycol group or a polypropylene glycol group having a polymerization degree of 2 to 10, a 2-hydroxyethyl group, a 2-hydroxypropyl group, and a 3-hydroxypropyl group. Among them, preferred are hydrogen, methyl, ethyl, 2-hydroxyethyl, 2-hydroxypropyl, and 3-hydroxypropyl.
[0037]
Note that X³The polyhydroxyalkyl group composed of a sugar residue having 4 to 30 carbon atoms includes a polyhydroxyalkyl group having 4 to 7 carbon atoms which is glycosidically bonded to a mono-, di- or oligosaccharide group.
[0038]
Further, as the sucrose fatty acid ester-based surfactant, the formula (12)
[0039]
Embedded image

(Where R¹¹, R¹²And R^ThirteenIs each independently hydrogen or a linear or branched saturated or unsaturated acyl group having 8 to 24 carbon atoms. Where R¹¹, R¹²And R^ThirteenAre not hydrogen at the same time. )
Can be preferably used, and is generally a mixture of mono-, di-, and triacylated compounds. In this case, the weight ratio of (monoacylated product) / (diacylated product + triacylated product) is preferably 70/30 to 30/70.
[0040]
In equation (12), R¹¹, R¹²And R^ThirteenAmong the acyl groups having 8 to 24 carbon atoms, an acyl group having 10 to 18 carbon atoms is preferable, and a lauroyl group, a myristoyl group, and a palmitoyl group are particularly preferable.
[0041]
The sugar-based nonionic surfactant of the component (B) can be used alone or in combination of two or more. When the content of the sugar-based nonionic surfactant of the component (B) in the detergent composition is too small, sufficient detergency cannot be obtained. Easy to clog, 5To 15% by weight.
[0042]
The detergent composition used in the present invention preferably further contains a polyol as the component (C).
[0043]
Examples of the polyols of the component (C) include propylene glycol, 1,3-butylene glycol, glycerin, sorbitol, maltitol, xylitol, glucose, polyethylene glycol 400, polyethylene glycol 600, dipropylene glycol, diglycerin, , 3-propylene glycol, hexylene glycol, sucrose, polyoxyethylene glycoside derivatives, and the like.
[0044]
The polyols of the component (C) can be used alone or in combination of two or more. Further, the content of the polyol (C) in the detergent composition is preferably 3 to 30% by weight, more preferably 5 to 30% by weight. By being contained within this range, the feel when the skin is massaged with the foam of the detergent composition becomes good, and the moist feeling of the skin after washing away the detergent composition can be improved. .
[0045]
It is preferable that the detergent composition used in the present invention further contains ethanol as the component (D). The content of the component (D) in the detergent composition of ethanol is preferably 0.1 to 10% by weight, more preferably 1 to 5% by weight. By blending in this range, a creamy foam is obtained and the detergency is improved.
[0046]
Further, in addition to the surfactants of components (A) and (B), the detergent composition used in the skin cleansing article of the present invention may contain other surfactants such as higher fatty acid salts and mono-linear alkyls. Anionic surfactants such as phosphate esters, linear alkylbenzene sulfonates, and acylated amino acid salts; amphoteric surfactants such as carbobetaine, sulfobetaine, imidazolinium betaine, and amidobetaine; Mono- or dialkyl-added quaternary ammonium salts having a chain or branched alkyl group and a cationic surfactant in which an alkylene oxide is added to the alkyl group; or a polyoxyalkylene, a polyglycerin fatty acid ester, or a polyhydric alcohol Fatty acid ester type, fatty acid diethanolamide type, trialkylamine oxide type It can be added appropriately according to the nonionic surfactant required.
[0047]
Preferred examples of such amphoteric surfactants include, in particular, hydroxypropylsulfobetaine, and desalted secondary imidazolinium betaine. Preferred examples of the anionic surfactant include alkali metal, alkaline earth metal, alkanolamine and salts of basic amino acids of fatty acids having 8 to 22 carbon atoms. Preferred examples of the cationic surfactant include a linear monoalkyl quaternary ammonium salt having 12 to 16 carbon atoms and a quaternary ammonium salt having a branched alkyl group having 20 to 28 carbon atoms. be able to. Preferred examples of the nonionic surfactant include fatty acid diethanolamide having an alkyl group having 8 to 22 carbon atoms, dimethylamine oxide having a secondary alkyl group having 12 to 14 carbon atoms, and secondary alkyl having 12 to 14 carbon atoms. Preferable examples include a polyoxyethylene alkyl ether having a group.
[0048]
These amphoteric surfactants, anionic surfactants, cationic surfactants or nonionic surfactants can be used singly or in combination of two or more. The total amount is preferably 0.5 to 30% by weight, more preferably 1 to 20% by weight.
[0049]
When the viscosity of the detergent composition used in the skin cleansing article of the present invention is too high, it becomes difficult to pass through the porous membrane, and it becomes difficult to obtain a creamy foam. Therefore, its viscosity at 25 ° C.1~ 100 cps, GoodMore preferably, it is 1 to 50 cps.
[0050]
The cleaning composition used in the skin cleaning product of the present invention may contain, if necessary, components used in ordinary cleaning compositions, for example, lanolin and its derivatives, esters such as isopropyl myristate, and palm. Oils such as oils such as triglycerides, humectants such as polyglycerin fatty acid esters, bactericides such as triclosan and trichlorocarbanilide, anti-inflammatory agents such as dipotassium glycyrrhizinate and tocopherol acetate, and anti-dandruff agents such as zinc pyrithione and octopirox Preservatives such as methyl paraben and butyl paraben, chelating agents such as ethylenediaminetetraacetic acid or its salts, hydroxyethanediphosphonic acid or its salts, pH adjusters such as citric acid and succinic acid, salts such as sodium chloride, and other pearling Agents, fragrances, dyes, ultraviolet absorbers, antioxidants, etc. Effect can be blended in is not jeopardized a.
[0051]
The cleaning composition used in the present invention can be produced by mixing the above components by a conventional method.
[0052]
The skin cleansing product of the present invention is a product in which the above-mentioned detergent composition is filled in a foam discharge container. As such a foam discharge container, one having a porous film is used. Thereby, a creamy foam is generated, and a good feeling in use can be obtained when the skin is washed. Here, examples of the porous film include a sponge, a sintered body, and a net. Above all, when the detergent composition adhered and remained on the porous film is dried and solidified to cause clogging, the flow of bubbles at the next discharge allows the solidified material to be immediately dissolved to eliminate clogging. It is preferable to use a thin net. In this case, the mesh of the net is preferably 50 to 500 mesh, more preferably 150 to 400 mesh. By using a mesh net in this range, a creamy foam having excellent massage properties can be generated. Preferred examples of such a mesh material include nylon and polyester.
[0053]
The foam discharge container used in the skin cleansing article of the present invention is preferably provided with at least one, and preferably a plurality of such porous membranes, particularly from the viewpoints of economy, foam stability and the like. It is preferable to arrange them.
[0054]
The foam discharge container may be any one that can mix a certain amount of the detergent composition with a certain amount of air and discharge it in a foam state, for example, by pressing the body of a soft container with a finger. Foamer (Japanese Utility Model Application Laid-Open No. 58-174272, Japanese Utility Model Application Laid-Open No. 62-42787, Japanese Patent Publication No. 52-16567, etc.), or the head of a cap equipped with a pump mechanism is pressed with fingers. By doing so, a pump former (for example, Japanese Utility Model Laid-Open No. 3-7963, Japanese Utility Model Application Laid-Open No. 62-103458) and the like can be used. Specifically, a foam discharge container as shown in FIG. 1 can be preferably exemplified.
[0055]
In the foam discharge container 10 of FIG. 1, a cap 12 is screwed into an opening 11 a of a container body 11 having squeezability, and a gas-liquid mixing unit 13 is provided at a central position inside the cap 12. The gas-liquid mixing section 13 has a structure in which a tube connecting section 13a and a porous film 13b are provided.
[0056]
Further, in the foam discharge container 10, the dip tube 14 is fitted to the tube connecting portion 13 a of the gas-liquid mixing section 13 via a certain gap, and is supported by the cap 12 in a state of communicating with the gas-liquid mixing section 13. And the dip tube 14 is inserted into the container body 11. An openable and closable nozzle portion 15 is screwed on the discharge side (upper side in the drawing) of the gas-liquid mixing portion 13 of the cap 12, and the nozzle portion 15 is closed by rotating by 90 degrees with respect to the cap 12. The position is switched to the open position. In the closed position, the annularly protruding sealing portion 16 of the nozzle portion 15 is in close contact with the plug portion 17 located above the gas-liquid mixing portion 13, and in the open position, the sealing portion 16 is separated from the plug portion 17 and is discharged from the discharge path. To form The discharge port 18 of the nozzle portion 15 is provided with a porous film fixing device 18a and a porous film 18b at its tip, and the porous film 18b is fitted and fixed by the porous film fixing device 18a. ing.
[0057]
Further, in the bubble discharge container 10, a ball valve 22 is provided in the air return path 21 of the cap 12, and the ball valve 22 is in close contact with the seal portion 21a above the air return path 21 when discharging bubbles. The pressure in the container body 11 is increased by squeezing. Then, after the end of the bubble discharge, the ball valve 22 is locked by the projection 21b below the air return path 21, and releases the external air by the negative pressure in the container caused by the container restoring force of the container body 11 whose squeeze is released. It is introduced into the container body 11.
[0058]
The foam discharge container 10 discharges foam by the following operation.
(1) By rotating the nozzle portion 15, the sealing portion 16 of the nozzle portion 15 is separated from the plug portion 17 of the cap 12, and a bubble discharge path indicated by an arrow X in FIG. 1 is formed.
(2) By manually squeezing the container body 11, air (or liquid) directly introduced into the gas-liquid mixing unit 13 of the cap 12 and into the gas-liquid mixing unit 13 via the dip tube 14. A bubble is formed by mixing the liquid (or air) and passing through the porous membrane 13b, and the bubble is passed through the above-described bubble discharge path X to form a bubble provided at the tip of the discharge port 18 of the nozzle portion 15. The liquid is discharged from the discharge port 18 through the quality film 18b. At this time, the ball valve 22 comes into close contact with the seal portion 21a of the air return path and increases the pressure in the container body 11.
[0059]
(3) After the discharge of the foam, the ball valve 22 is locked to the protrusion 21b of the air return path 21, and external air is generated by negative pressure in the container caused by the container restoring force of the container body 11 whose squeeze is released. It is introduced into the container body 11 from the air return path indicated by the arrow Y of FIG. At this time, the external air also tries to pass through the reverse path of the bubble discharge path X described in (2) above, but the residual air in the porous film 18b becomes a resistance, and thus passes through the above-described air return path Y. . When the residual bubbles of the porous film 18b become resistance and the air introduction into the air return path Y is gentle, the air return path 21 and the ball valve 22 may be provided at a position directly communicating with the outside of the cap 12. .
[0060]
In the skin cleansing article of the present invention, bubbles are generated when the cleaning composition passes through the membrane, and the generated foam generally has a foam density of 0.03 to 0.25 g / ml. Foams having a density in this range are particularly excellent in detergency and massage properties. The foam density can be determined by discharging foam from a foam discharge container into a 100-ml measuring cylinder and measuring the weight.
[0061]
The skin cleansing product of the present invention is extremely useful as a facial cleansing foam, a cleansing foam, a makeup remover foam, a shaving foam, a shampoo foam, a body cleaning foam, and the like. Further, it can be used as a dishwashing product.
[0062]
[Action]
In the skin cleansing article of the present invention, a cleansing composition is composed of a specific anionic surfactant and a sugar-based nonionic surfactant, and the cleansing composition is filled in a foam discharge container having a porous membrane. The foam discharged from the foam discharge container through the porous membrane has a high detergency, is uniform, has a small density, is creamy, and has good shape retention. Therefore, it becomes possible to sufficiently wash dirt that is easy to massage and hard to remove with a good feeling of use.
[0063]
【Example】
Next, the present invention will be specifically described according to the following examples.In addition, Example 5 and Example 6 are reference examples using a sugar-based nonionic surfactant other than the alkylsaccharide-based surfactant as the component (B).
[0064]
Examples 1-3 and Comparative Examples 1-3
The components having the compositions shown in Table 1 were uniformly mixed to prepare a detergent composition, and the composition was filled in a squeeze former shown in FIG. 1 to produce a skin cleansing product. Foam was discharged from the obtained skin cleansing article, and the foam quality and detergency of the foam were evaluated by ten expert panelists as described below. Table 1 shows the results.
[0065]
In the table, "TEA" is a triethanolamine residue, "POE" is a polyoxyethylene residue, and "POP" is a polyoxypropylene residue.
[0066]
Detergency evaluation method
Lipstick is 10mg / 5cm with 0.1g of foam discharged from skin cleansing product²Was massaged for 30 seconds, washed with running water, and the amount of remaining lipstick was visually determined according to the following evaluation criteria.
[0067]
Detergency evaluation criteria
Rank condition
○: When almost completely dropped
△: When almost dropped
×: When not dropped much
Foam quality evaluation method
1.0 g of foam was discharged from the skin cleansing product to the palm, and the texture of the foam was visually determined according to the following evaluation criteria.
[0068]
Foam quality evaluation criteria
Rank condition
○: Fine and stable foam
△: When the foam is coarse and easy to disappear
×: when foaming did not occur
[0069]
[Table 1]

[0070]
As can be seen from the results in Table 1, the skin cleansing products of the examples showed very excellent results in terms of detergency and foam quality. On the other hand, the skin cleansing article of the comparative example was insufficient in detergency and foam quality because the surfactant of the component (A) and the component (B) were not used at the same time.
[0071]
Example 4
A skin cleansing product was produced as a makeup remover face wash in the same manner as in Example 1 except that the components having the compositions shown in Table 2 were used. Next, a water-resistant foundation of 5 mg / 5 cm was sprayed by a specialized panel of 10 people using 0.1 g of foam discharged from the skin cleansing product.²Was washed for 30 seconds, and the amount of the remaining water-resistant foundation was visually determined. As a result, it could be almost completely removed.
[0072]
[Table 2]
Ingredient name wt%
2-hexyldecyl sulfate TEA salt 3.0
2-heptylundecyl phosphate TEA 2.0
Alkyl saccharide of formula (10) 10.0
(R⁶= C₁₂H₂₅A = 0; G = glucose; b = 2)
Lauric acid TEA salt 3.0
Myristate TEA 2.0
POE (3) -sec-alkyl (12-14) ether 3.0
Lauroyl diethanolamide 3.0
Sorbitan laurate 0.5
1,3-butylene glycol 5.0
Ethanol 2.0
Na₂SO₄                                0.5
BHT 0.2
Methyl paraben 0.1
Propylparaben 0.1
Hydroxyethanediphosphonic acid 0.1
Fragrance trace
Purified water balance
[0073]
Example 5
A systemic skin cleansing product was produced in the same manner as in Example 1 except that the components having the compositions shown in Table 3 were used. Next, when the whole body was washed with foam discharged from the skin-cleaning product by 10 specialized panelists, dirt attached to the skin could be almost completely removed.
[0074]
[Table 3]

[0075]
Example 6
A skin cleansing product was produced as a facial cleanser in the same manner as in Example 1 except that the components having the compositions shown in Table 4 were used. Next, the model sebum was 10 mg / 5 cm with 0.1 g of foam discharged from the skin cleansing product by 10 specialized panelists.²Was massaged for 30 seconds, and the amount of residual model sebum was visually determined, and almost completely removed.
[0076]
[Table 4]

[0077]
Example 7
A skin cleansing product for shampoo was manufactured in the same manner as in Example 1 except that the components having the compositions shown in Table 5 were used. Next, 10 professional panelists used 0.1 g of a polymer-based aerosol (LPG) hair styling with 3 g of foam discharged from the skin cleaning product to wash the hair, and the hair styling was almost completely removed. I was able to wash away.
[0078]
[Table 5]

[0079]
Comparative Examples 4 to 10
When the detergent compositions used in Examples 1 to 7 were used without being filled in a foam discharge container, foaming was insufficient, and all of them were very easy to flow over the skin. Therefore, sufficient detergency was not obtained.
[0080]
【The invention's effect】
According to the skin cleansing article of the present invention, a homogeneous and creamy foam having low irritation and high detergency can be obtained. By using the foam, it is possible to satisfactorily wash oily stains, such as lipstick, eye makeup, and water-resistant foundation, which are hard to remove with a good feeling of use.
[Brief description of the drawings]
FIG. 1 is a partially enlarged sectional view of a foam discharge container.
[Explanation of symbols]
10. Foam discharge container
11 Container body
13 Gas-liquid mixing section
13b porous membrane
15 Nozzle part
18 Discharge port
18a Porous membrane fixture
18b porous membrane
X Foam discharge path
Y Air return route

Claims (3)

1 to 10% by weight of the following component (A) and 5 to 15% by weight of component (B):
(A) at least one surfactant selected from the group consisting of a phosphate ester surfactant of the formula (1), a sulfate ester surfactant of the formula (2), and a sulfonic acid surfactant of the formula (3)

中 In the formula (1), R ¹ is a hydrocarbon group having 5 to 13 carbon atoms, and R ² is a hydrocarbon group having 5 to 11 carbon atoms. However, the total number of carbon atoms of R ¹ and R ² is 12 to 22. X ¹ and X ² are each independently hydrogen, an alkali metal, ammonium, a basic amino acid residue or an alkanolamine residue having a hydroxyalkyl group having 2 to 3 carbon atoms. In the formulas (2) and (3), R ³ is a branched-chain hydrocarbon group having 6 to 24 carbon atoms, Y is an oxyethylene group, a is a number of 0 to 10, and R ⁴ Is a hydrocarbon group having a branched chain and having 6 to 24 carbon atoms, and Z is a group represented by the formulas (4) to (9).

(In the formulas (4) to (9), R ⁵ is hydrogen or a hydrocarbon group having 10 to 14 carbon atoms, and b is a number of 0 to 10. However, R ⁴ is a hydrocarbon in which R ⁵ is a hydrocarbon. If it is a group, it may not have a branched chain.), And M is hydrogen, an alkali metal, ammonium, a basic amino acid residue or a hydroxyalkyl having 2 to 3 carbon atoms. A alkanolamine residue or an aliphatic alkanolammonium having a group, and n is a valence of M. ｝; And (B) a cleaning composition containing an alkyl saccharide-based surfactant and having a viscosity of 1 to 100 cps (25 ° C.) is filled in a foam discharge container having a porous film. Skin cleaning supplies. Furthermore, skin cleansing article of claim 1 wherein the detergent composition contains from 3 to 30% by weight of the polyol as component (C). Furthermore, skin cleansing article according to claim 1 or 2, wherein the detergent composition contains ethanol 0.1 to 10% by weight as component (D).

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