JP4001858B2 - Sheet cleansing material - Google Patents
Sheet cleansing material Download PDFInfo
- Publication number
- JP4001858B2 JP4001858B2 JP2003384782A JP2003384782A JP4001858B2 JP 4001858 B2 JP4001858 B2 JP 4001858B2 JP 2003384782 A JP2003384782 A JP 2003384782A JP 2003384782 A JP2003384782 A JP 2003384782A JP 4001858 B2 JP4001858 B2 JP 4001858B2
- Authority
- JP
- Japan
- Prior art keywords
- oil
- sheet
- composition
- mass
- cleansing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Landscapes
- Cosmetics (AREA)
Description
本発明は、簡便且つ迅速に水性メイクアップ化粧料及び油性メイクアップ化粧料の双方を十分に除去できると共に使用感に優れ、かつシートが積層された商品形態においても、安定に品質を維持できるシート状クレンジング材に関する。 The present invention is a sheet that can sufficiently remove both aqueous makeup cosmetics and oily makeup cosmetics easily and quickly, is excellent in use feeling, and can stably maintain quality even in a product form in which sheets are laminated. Related to cleansing materials.
メイクアップ化粧料には、皮膚への密着性に優れ、耐水性及び耐皮脂性が高く、化粧崩れしにくく、良好な化粧持続性を示すことが求められている。特に、アイメイクアップ化粧料の一種であるマスカラの場合、汗や水に対する化粧崩れを防ぐために、固形ワックスや被膜形成用のポリマー等を使用して油性マスカラとしたり、カール保持効果等のために、被膜形成能を有する水溶性ポリマーを用いて水性マスカラとしたりすることが行われている。 Makeup cosmetics are required to have excellent adhesion to the skin, high water resistance and sebum resistance, resistance to makeup collapse, and good makeup persistence. In particular, in the case of mascara, which is a type of eye makeup cosmetic, in order to prevent makeup collapse against sweat and water, it can be made into an oily mascara using a solid wax or a polymer for film formation, etc. An aqueous mascara is made using a water-soluble polymer having a film-forming ability.
その一方で、メイクアップ化粧料を効率良く除去できることも求められており、そのために様々なクレンジング材料が用いられている。メイクアップを除去するための一般的な技術としては、界面活性剤水溶液を用いたり、油剤をジェル、クリームやオイルなどの剤型にして使用することが知られている。しかし、従来の水系クレンジング組成物は、水に対して溶解性・分散性をもつ水性マスカラをより速やかに除去できるが油性マスカラを除去できず、油剤系クレンジング組成物は油性マスカラを除去できるが水性マスカラを除去できないという問題があった。また、界面活性剤水溶液と油剤を共存させると界面活性剤によって油剤が乳化されて、油性のメイク汚れに油剤が効果的に作用できないという問題があった。 On the other hand, it is also required that makeup cosmetics can be removed efficiently, and various cleansing materials are used for that purpose. As a general technique for removing makeup, it is known to use an aqueous surfactant solution or use an oil agent in the form of gel, cream or oil. However, conventional water-based cleansing compositions can remove water-based mascara that is soluble and dispersible in water more quickly, but cannot remove oil-based mascara, and oil-based cleansing compositions can remove oil-based mascara. There was a problem that mascara could not be removed. Further, when the surfactant aqueous solution and the oil agent are allowed to coexist, the oil agent is emulsified by the surfactant, and the oil agent cannot effectively act on the oily makeup stain.
更に、油性マスカラ及び水性マスカラの双方を除去することを目的として、油相と水相とに分離する二相系クレンジング組成物も提案されている。このタイプのクレンジング組成物においては、油相が油性マスカラの除去を担い、水相が水性マスカラの除去を担っている。しかし、使用の際に手で激しく振り混ぜ、一時的に見かけ上均質な分散液とし、それをコットンやティッシュ等に滲み込ませてから拭き取るといった操作が必要となるので簡便性に欠け、最適な使用量の調整も困難であった。 Furthermore, a two-phase cleansing composition that separates into an oil phase and an aqueous phase has been proposed for the purpose of removing both oily mascara and aqueous mascara. In this type of cleansing composition, the oil phase is responsible for the removal of the oily mascara and the aqueous phase is responsible for the removal of the aqueous mascara. However, when using it, it is necessary to shake it vigorously by hand, temporarily make it an apparently homogeneous dispersion, soak it in cotton or tissue, and then wipe it off. It was also difficult to adjust the amount used.
さらに、簡便且つ迅速にメイクアップを除去するために、シート状支持体にクレンジング組成物を含浸させたクレンジング材料も提案されている。しかしながら、二相系クレンジング組成物をシート状支持体に含浸させたシートを積層すると、シート状積層体の内部で二相系クレンジング組成物の油相と水相とが分相し易く、そのため積層したシートの上部と下部で含浸液の組成が異なることがある。また、シート積層体の保存中に、含浸させた液体が重力によって下層部へ移動して、積層体の上部と下部との間で含浸率が大きく異なることがあった。このような含浸液の組成及び含浸率の変化の結果、積層したシートの上部と下部でクレンジング性能が相違し、結果的に洗浄効果が安定に得られない傾向があった。 Furthermore, a cleansing material in which a sheet-like support is impregnated with a cleansing composition has also been proposed in order to remove makeup easily and quickly. However, when a sheet in which a sheet-like support is impregnated with a two-phase cleansing composition is laminated, the oil phase and the aqueous phase of the two-phase cleansing composition are easily separated inside the sheet-like laminate. The composition of the impregnating liquid may be different between the upper part and the lower part of the sheet. In addition, during storage of the sheet laminate, the impregnated liquid may move to the lower layer due to gravity, and the impregnation rate may be greatly different between the upper and lower portions of the laminate. As a result of such changes in the composition of the impregnating liquid and the impregnation ratio, the cleansing performance is different between the upper part and the lower part of the laminated sheets, and as a result, there is a tendency that the cleaning effect cannot be stably obtained.
特許文献１では、粘度２００〜４０００ｍＰａ・ｓのエマルジョン化粧料をシートに含浸させてなるクレンジング材料を開示している。しかし、このエマルジョン化粧料は界面活性剤を用いた安定な乳化（５０℃で１ヵ月安定）を前提としているため、水中油型の場合は油剤が放出され難くクレンジング性能が不十分であり、油中水型の場合は油性感が強くなるという問題があった。またこれは、乳化が安定なためシートの内部での組成変化については問題がないが、シートの条件によっては、シートを積層した場合に保存中に含浸液が重力によって下層部へ移動して、積層した上部と下部のシートの間で含浸率が大きく変化することにより、使用感やクレンジング性能が変化して安定に品質を維持できないという問題があった。 Patent Document 1 discloses a cleansing material obtained by impregnating a sheet with an emulsion cosmetic having a viscosity of 200 to 4000 mPa · s. However, since this emulsion cosmetic is premised on stable emulsification using a surfactant (stable at 50 ° C. for one month), in the case of an oil-in-water type, the oil agent is hardly released and the cleansing performance is insufficient. In the case of the middle water type, there was a problem that the oiliness became stronger. This is because there is no problem with the composition change inside the sheet because the emulsification is stable, but depending on the conditions of the sheet, when the sheets are laminated, the impregnation liquid moves to the lower layer by gravity during storage, There is a problem that the impregnation rate greatly changes between the laminated upper and lower sheets, so that the feeling of use and cleansing performance change, and the quality cannot be stably maintained.
一方、低沸点イソパラフィン等の低沸点油剤がメイク汚れに対して洗浄力を有することは知られており、これらを用いた各種クレンジング材料が開示されている。
特許文献２には、沸点１６０〜２８０℃の低沸点イソパラフィン系炭化水素をポリオキシエチレンアルキルエーテル系界面活性剤で水中乳化したアイメイクアップ除去料が開示されている。しかしながら、これは界面活性剤を用いて安定に乳化するため、油剤が放出され難くクレンジング性能に劣る。また、ある程度のクレンジング性能を付与するため油剤の配合量が多くなる傾向があり、油っぽい使用感になる。また当該文献には、水中油型乳化組成物を含浸したシートや該シートが積層された商品形態において、安定に品質を維持させる条件は開示されていない。
On the other hand, it is known that low-boiling oils such as low-boiling isoparaffins have a detergency against makeup stains, and various cleansing materials using these are disclosed.
Patent Document 2 discloses an eye makeup remover obtained by emulsifying a low-boiling isoparaffinic hydrocarbon having a boiling point of 160 to 280 ° C. in water with a polyoxyethylene alkyl ether surfactant. However, since this is stably emulsified using a surfactant, the oil agent is hardly released and the cleansing performance is poor. Moreover, in order to provide a certain amount of cleansing performance, the amount of the oil agent tends to increase, resulting in an oily feel. Further, the document does not disclose conditions for stably maintaining quality in a sheet impregnated with an oil-in-water emulsion composition or a product form in which the sheet is laminated.
また、低沸点油剤を用い、所謂界面活性剤を用いないものとして、特許文献３には、低沸点イソパラフィンや低沸点シリコーン油をポリアクリル系増粘剤にて水相に分散させたメーキャップ除去料が開示されている。さらに特許文献４には、水溶性多糖類、低沸点油剤及び水を必須成分とするメイクアップ除去料が開示されている。しかしながらこれらは、水中油型乳化組成物をシート製剤とすることについては、何ら開示がない。 Further, as a low-boiling oil agent and not using a so-called surfactant, Patent Document 3 discloses a makeup remover in which low-boiling isoparaffin or low-boiling silicone oil is dispersed in an aqueous phase with a polyacrylic thickener. Is disclosed. Furthermore, Patent Document 4 discloses a makeup remover containing water-soluble polysaccharides, low-boiling oils and water as essential components. However, these do not disclose anything about using an oil-in-water emulsion composition as a sheet preparation.
また、特許文献５には、アクリル酸・アクリル酸アルキルコポリマー型乳化剤、油剤、水、及び非乳化性界面活性剤を含有する水中油型エマルジョン組成物、及びこの組成物の形態が木綿ボール、木綿パッド、ティッシュペーパー、タオル等の用具を用いて拭き取って除去される形態であっても良い旨が開示されている。しかし、この水中油型エマルジョンは乳化剤を用いた安定なもの（４０℃で３ヵ月安定）を前提としており、水中油型乳化組成物を含浸したシートが積層された商品形態において、安定に品質を維持させる条件を開示していない。 Patent Document 5 discloses an oil-in-water emulsion composition containing an acrylic acid / alkyl acrylate copolymer emulsifier, an oil agent, water, and a non-emulsifying surfactant, and the form of this composition is cotton balls, cotton. It is disclosed that it may be in the form of being wiped off by using a tool such as a pad, tissue paper or towel. However, this oil-in-water emulsion is premised on a stable product using an emulsifier (stable at 40 ° C. for 3 months), and in a product form in which sheets impregnated with an oil-in-water emulsion composition are laminated, the quality can be stably improved. The conditions to be maintained are not disclosed.
さらに、特許文献６には、イソパラフィンなどの低粘度油剤を含み、振とうすると油中水型乳液状となる多層型クレンジング料が開示されている。しかし、このものは、振って乳液状としたものを皮膚に適用して拭き取る使い方であり、使用量や組成が一定しないなど使用時の品質ふれが大きいという問題がある。 Furthermore, Patent Document 6 discloses a multilayer cleansing material that contains a low viscosity oil such as isoparaffin and becomes a water-in-oil emulsion when shaken. However, this is a method of wiping by applying to the skin what has been shaken to form an emulsion, and there is a problem that the quality fluctuation during use is large, such as the amount used and composition are not constant.
このように従来の技術では、低沸点イソパラフィン等の油剤を安定に乳化するとクレンジング性能が不十分となり、またクレンジング性能を優先させると二相タイプになったり、油性感の強い配合形態になったりするのが現状であった。また、シート状支持体に含浸させるクレンジング組成物は、二相タイプだと分相し易く品質が保持できないため、基本的には油剤が安定に配合された乳化形態であることを前提としており、クレンジング性能は不十分であった。また、水中油型乳化組成物を含浸したシートが積層された商品形態において、安定に品質を維持させる条件は知られていなかった。 In this way, in the conventional technology, cleansing performance becomes insufficient when oil agents such as low-boiling isoparaffins are stably emulsified, and when prioritizing cleansing performance, it becomes a two-phase type or a blended form with a strong oily feeling. Was the current situation. In addition, the cleansing composition impregnated into the sheet-like support is a two-phase type, since it is easy to phase-separate and the quality cannot be maintained, and is basically premised on an emulsified form in which the oil agent is stably blended. Cleansing performance was insufficient. In addition, in a product form in which sheets impregnated with an oil-in-water emulsion composition are laminated, conditions for stably maintaining quality have not been known.
本発明は、簡便且つ迅速に水性メイクアップ化粧料及び油性メイクアップ化粧料の双方を十分に除去でき、クレンジング性能及び使用感に優れ、かつシートが積層された商品形態においても、安定に品質を維持できるシート状クレンジング材を提供することにある。 The present invention can easily and quickly remove both water-based makeup cosmetics and oil-based makeup cosmetics sufficiently, is excellent in cleansing performance and feeling of use, and has a stable quality even in a product form in which sheets are laminated. It is providing the sheet-like cleansing material which can be maintained.
本発明者らは、比較的高密度な親水性のシート材と、水系増粘剤を用いた水中油型乳化組成物を組み合わせると、シート材中での乳化組成物の組成変化が抑えられ、かつ積層したシート間で含浸液の上下移動が抑制された、品質安定性の良好なシート状クレンジング材が得られることを見出した。特に、油剤として洗浄力の高いイソパラフィン等の油剤を用いれば、クレンジング性能が高く、油性感の強くない良好な使用感を有する。 When the present inventors combine a relatively high density hydrophilic sheet material and an oil-in-water emulsion composition using an aqueous thickener, the composition change of the emulsion composition in the sheet material is suppressed, It was also found that a sheet-like cleansing material with good quality stability in which the vertical movement of the impregnating liquid was suppressed between the laminated sheets was obtained. In particular, when an oil agent such as isoparaffin having a high detergency is used as the oil agent, the cleansing performance is high and the oil has a good feeling of use with no strong oily feeling.
なおここで、積層したシート形態で安定に品質を維持できることは、Ｚ折りで４０枚重ねた形態で、５０℃で１ヵ月の保存後、上から２枚目のシートと３９枚目での含浸率の変化が、初期に設定された含浸率に対して±４０％以内であること、及び、化粧料の中でも最も除去し難い油性マスカラに対するクレンジング性能がそれぞれのシートで維持されていることを意味する。具体的には、以下の方法で上から２枚目のシートと３９枚目のシートのクレンジング性能が以下の評価基準で◎あるいは○であることである。 Here, the quality of the laminated sheets can be maintained stably in the form of 40 sheets stacked by Z-folding, after impregnation on the second sheet and the 39th sheet from the top after storage for one month at 50 ° C. This means that the change in rate is within ± 40% of the initially set impregnation rate, and that the cleansing performance for oily mascara, which is the most difficult to remove among cosmetics, is maintained in each sheet. To do. Specifically, the cleansing performance of the second sheet and the 39th sheet from the top by the following method is 方法 or ◯ according to the following evaluation criteria.
＜クレンジング性能の評価方法＞
油性マスカラ０．００４５ｇをスライドガラス上で直径１．２ｃｍの円形に均一塗布して、一定時間放置して乾燥させる。シート状クレンジング材を上記乾燥したマスカラにあてて、１００ｇ/ｃｍ2の一定圧力で初め５秒間押さえてから拭き取る操作を行い、マスカラを除去するのに必要な拭き取り回数を測定する。
［評価基準］
◎ ：５回以下
○ ：６〜１０回
：１１〜１５回
× ：１６回以上
<Evaluation method of cleansing performance>
0.0045 g of oily mascara is uniformly applied to a circular shape having a diameter of 1.2 cm on a slide glass and left to dry for a certain period of time. The sheet-type cleansing material is applied to the dried mascara, and the operation of wiping is performed after first pressing for 5 seconds at a constant pressure of 100 g / cm 2 , and the number of times of wiping necessary to remove the mascara is measured.
[Evaluation criteria]
◎: 5 times or less ○: 6-10 times: 11-15 times ×: 16 times or more
すなわち、本発明は、セルロース含量が７０質量％以上の繊維からなり、密度が０．１５〜０．３ｇ／ｃｍ3である不織布（Ａ）に、水系増粘剤０．０１〜０．５質量％、沸点が１６０〜３００℃の油剤５〜３０質量％、及び水を含有し、且つ、３０℃で静置した場合に、１日以上１か月以内に、水相とその他の乳化相に分離する組成である水中油型乳化組成物（Ｂ）を含浸してなるシート状クレンジング材を提供するものである。 That is, the present invention comprises a non-woven fabric (A) having a cellulose content of 70% by mass or more and a density of 0.15 to 0.3 g / cm 3 , and an aqueous thickener 0.01 to 0.5 mass. %, An oil agent having a boiling point of 160 to 300 ° C., 5 to 30% by mass, and water, and when left at 30 ° C., the aqueous phase and other emulsified phases are added within one day to one month. The present invention provides a sheet-type cleansing material impregnated with an oil-in-water emulsion composition (B) that is a composition to be separated .
本発明のクレンジング材は、簡便且つ迅速に、水性マスカラ等の水性メイクアップ化粧料及び油性マスカラ等の油性メイクアップ化粧料の双方を十分に除去でき、クレンジング性能及び使用感に優れ、かつシートが積層された商品形態においても、安定に品質を維持できる。 The cleansing material of the present invention can easily and quickly remove both aqueous makeup cosmetics such as aqueous mascara and oily makeup cosmetics such as oily mascara, and has excellent cleansing performance and usability, and has a sheet. Quality can be stably maintained even in stacked product forms.
本発明においては、洗浄力が高く油性感が強くない低沸点油剤を、水系増粘剤を用いて乳化、分散させ、比較的高密度な親水性の不織布と組み合わせる。シート材である比較的高密度な親水性の不織布が乳化組成物の外相の水相を安定に保持し、更に、油を包含した高分子の水系増粘剤が繊維間に絡まって不織布中で安定に油を保持することにより、不織布中での乳化組成物の移動を抑制でき、不織布中の乳化組成物の量や組成が維持される。乳化組成物は油剤が洗浄力を損なわない程度に乳化、分散されているため、本発明のクレンジング材は、油剤が放出され易くて洗浄力が高く、シート材からの液体の滲み出しが良くて使用感が優れる。更に、シートが積層された状態であっても上記品質を安定に維持できる。また、本発明のクレンジング材はシート状であるため、出してすぐ使用でき、且つメイクを拭き取るだけで除去できるため、簡便且つ迅速にメイクアップを除去できる。 In the present invention, a low boiling point oil agent having a high detergency and not having a strong oily feeling is emulsified and dispersed using an aqueous thickener, and combined with a relatively high density hydrophilic nonwoven fabric. A relatively high density hydrophilic non-woven fabric, which is a sheet material, stably holds the aqueous phase of the outer phase of the emulsified composition, and a polymer aqueous thickener containing oil is entangled between the fibers in the non-woven fabric. By holding oil stably, the movement of the emulsion composition in the nonwoven fabric can be suppressed, and the amount and composition of the emulsion composition in the nonwoven fabric are maintained. Since the emulsified composition is emulsified and dispersed to such an extent that the oil agent does not impair the detergency, the cleansing material of the present invention is easy to release the oil agent and has high detergency, and the liquid oozes from the sheet material. The feeling of use is excellent. Furthermore, the quality can be stably maintained even when the sheets are laminated. Further, since the cleansing material of the present invention is in the form of a sheet, it can be used immediately after being removed, and can be removed simply by wiping off the makeup, so that makeup can be removed easily and quickly.
本発明で用いる不織布（Ａ）は、セルロース含量が７０質量％以上の繊維からなり、密度が０．１５〜０．３ｇ／ｃｍ3である。 The nonwoven fabric (A) used in the present invention is composed of fibers having a cellulose content of 70% by mass or more, and has a density of 0.15 to 0.3 g / cm 3 .
含浸する水中油型乳化組成物（Ｂ）のシート材中での移動を抑制するために、シート材である不織布（Ａ）は、外相である水相を安定に保持できるように親水性であることが好ましい。含浸により水中油型乳化組成物中の油剤が不織布の繊維中に浸透すると、水性成分に対する不織布の濡れ性が低下すること、及び、疎水性繊維を混合すると不織布自身の水性成分に対する濡れ性が低下することを考慮し、不織布（Ａ）は、セルロース含量が７０質量％以上の繊維からなるものが用いられる。外相の水相を安定に保持する点から、セルロース含量は、さらに好ましくは８０質量％以上である。 In order to suppress the movement of the oil-in-water emulsified composition (B) to be impregnated in the sheet material, the nonwoven fabric (A) that is the sheet material is hydrophilic so that the aqueous phase that is the outer phase can be stably maintained. It is preferable. When the oil agent in the oil-in-water emulsion composition penetrates into the nonwoven fabric fiber due to impregnation, the wettability of the nonwoven fabric with respect to the aqueous component decreases, and when the hydrophobic fiber is mixed, the wettability with respect to the aqueous component of the nonwoven fabric itself decreases. Therefore, the nonwoven fabric (A) is made of fibers having a cellulose content of 70% by mass or more. From the viewpoint of stably maintaining the aqueous phase of the outer phase, the cellulose content is more preferably 80% by mass or more.
セルロース繊維としては、具体的には、コットン、レーヨンなどが挙げられる。特に、コットンが滑らかな肌触りである点から好ましい。また、不織布は、肌感触の点から水流交絡法により得られるものが好ましい。 Specific examples of cellulose fibers include cotton and rayon. In particular, cotton is preferable because it has a smooth touch. The nonwoven fabric is preferably obtained by hydroentanglement from the viewpoint of skin feel.
上記を満たす範囲であれば、シートの改質のために疎水性繊維の混合が行われても良い。疎水性繊維としては、例えば、ポリエチレンテレフタレート（ＰＥＴ）、ポリブチレンテレフタレート（ＰＢＴ）、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）等のポリエステル系繊維やポリオレフィン系繊維が挙げられる。 If it is a range satisfying the above, mixing of hydrophobic fibers may be performed for the modification of the sheet. Examples of the hydrophobic fibers include polyester fibers such as polyethylene terephthalate (PET), polybutylene terephthalate (PBT), polypropylene (PP), and polyethylene (PE), and polyolefin fibers .
含浸する水中油型乳化組成物(Ｂ)を保持し、シート材中での移動を抑制するために、不織布（Ａ）は、比較的高密度であることが好ましい。液が重力によって容易に下部のシートに移動しない点から、不織布の密度は０．１５ｇ/ｃｍ3以上とし、一方で、含浸液がシートに滲み込みやすく、シートの使用感触を柔らかくする点から、０．３ｇ/ｃｍ3以下とする。液の移動抑制及び使用感のバランスより、不織布の密度は０．１７〜０．２５ｇ/ｃｍ3が特に好ましい。 In order to hold the oil-in-water emulsified composition (B) to be impregnated and suppress movement in the sheet material, the nonwoven fabric (A) is preferably relatively dense. From the point that the liquid does not easily move to the lower sheet due to gravity, the density of the non-woven fabric is 0.15 g / cm 3 or more. On the other hand, the impregnating liquid easily permeates into the sheet and softens the feeling of use of the sheet. 0.3 g / cm 3 or less. The density of the nonwoven fabric is particularly preferably 0.17 to 0.25 g / cm 3 from the balance of liquid movement suppression and feeling of use.
また、不織布（Ａ）の平均坪量（単位面積当たりの重量）は、拭いた時によれずに使い勝手が良く、汚れが裏移りしない点から、４０ｇ／ｍ2以上が好ましく、積層時嵩高くならず、しなやかな感触が得られる点から、１００ｇ／ｍ2以下が好ましい。特に、５０〜８０ｇ／ｍ2が使用時に扱いやすく、積層時も適度な嵩高さになるため好ましい。 Further, the average basis weight (weight per unit area) of the nonwoven fabric (A) is preferably 40 g / m 2 or more from the viewpoint that it is easy to use without depending on wiping and the dirt does not reverse, and the bulk when laminated is increased. However, 100 g / m 2 or less is preferable because a supple feel can be obtained. In particular, 50 to 80 g / m 2 is preferable because it is easy to handle at the time of use and has an appropriate bulk at the time of lamination.
不織布（Ａ）は、二種以上の不織布を重ね合わせ又は貼り合わせたシート材料であってもよい。また、不織布（Ａ）の形状は、人が手に取って使いやすい形状、大きさ及び厚さであることが好ましく、例えば、一辺もしくは直径が５〜２０ｃｍ程度の正方形、長方形、円形、楕円が挙げられ、厚さは０．２〜０．５ｍｍ程度が好ましい。 The nonwoven fabric (A) may be a sheet material in which two or more kinds of nonwoven fabrics are overlapped or bonded. Moreover, it is preferable that the shape of a nonwoven fabric (A) is a shape, a magnitude | size, and thickness which are easy to use for a person's hand, for example, a square, a rectangle, a circle | round | yen, an ellipse with a side or a diameter of about 5-20 cm The thickness is preferably about 0.2 to 0.5 mm.
本発明で用いる水中油型乳化組成物（Ｂ）は、水系増粘剤０．０１〜０．５質量％、沸点が１６０〜３００℃の油剤５〜３０質量％、及び水を含有する。 The oil-in-water type emulsion composition (B) used by this invention contains 0.01-0.5 mass% of water-system thickeners, 5-30 mass% of oil agents whose boiling point is 160-300 degreeC, and water.
本発明においては、油剤を乳化させるのに、水系増粘剤を用いることが好ましい。特に重量平均分子量が１，０００以上である水系増粘性ポリマーが好ましい。水系増粘剤を用いて乳化すると、乳化組成物中の油剤が洗浄力を損なわない程度に乳化、分散され、且つ、シート材中に乳化組成物が含浸された後、油を包含した高分子の水系増粘剤が繊維間に絡まることにより、シート材中で安定に油を保持できる。 In the present invention, it is preferable to use an aqueous thickener to emulsify the oil agent. In particular, an aqueous thickening polymer having a weight average molecular weight of 1,000 or more is preferred. When emulsified with an aqueous thickener, the oil in the emulsified composition is emulsified and dispersed to such an extent that the detergency is not impaired, and the sheet material is impregnated with the emulsified composition and then a polymer containing oil. When the aqueous thickener is entangled between the fibers, oil can be stably retained in the sheet material.
かかる水系増粘性ポリマーの具体例としては、以下の水溶性高分子が挙げられる。天然の水溶性高分子としては、例えば、アラビアガム、トラガカントガム、ガラクタン、グアーガム、キャロブガム、カラヤガム、カラギーナン、ペクチン、カンテン、クインスシード（マルメロ）、アルゲコロイド（カッソウエキス）、デンプン（コメ、トウモロコシ、バレイショ、コムギ）、グリチルリチン酸等の植物系高分子、キサンタンガム、デキストラン、サクシノグルカン、プルラン等の微生物系高分子、コラーゲン、カゼイン、アルブミン、ゼラチン等の動物系高分子が挙げられる。半合成の水溶性高分子としては、例えば、カルボキシメチルデンプン、メチルヒドロキシプロピルデンプン等のデンプン系高分子、メチルセルロース、ニトロセルロース、エチルセルロース、メチルヒドロキシプロピルセルロース、ヒドロキシエチルセルロース、セルロース硫酸ナトリウム、ヒドロキシプロピルセルロース、カルボキシメチルセルロースナトリウム（ＣＭＣ）等のセルロース系高分子、アルギン酸ナトリウム、アルギン酸プロピレングリコールエステル等のアルギン酸系高分子が挙げられる。合成の水溶性高分子としては、例えば、ポリビニルアルコール、ポリビニルメチルエーテル系高分子、ポリビニルピロリドン、カルボキシビニルポリマー（CARBOPOL 940, 941; BF Goodrich社）等のビニル系高分子、ポリエチレングリコール２００００、ポリエチレングリコール６０００、ポリエチレングリコール４０００等のポリオキシエチレン系高分子、ポリオキシエチレンポリオキシプロピレン共重合体等の共重合体系高分子、ポリアクリル酸ナトリウム、ポリエチルアクリレート、ポリアクリルアミド等のアクリル系高分子、ポリエチレンイミン、カチオンポリマー等が挙げられる。 Specific examples of the water-based thickening polymer include the following water-soluble polymers. Examples of natural water-soluble polymers include gum arabic, gum tragacanth, galactan, guar gum, carob gum, caraya gum, carrageenan, pectin, agar, quince seed (malmello), alge colloid (gypsum extract), starch (rice, corn, potato, Wheat), plant polymers such as glycyrrhizic acid, microbial polymers such as xanthan gum, dextran, succinoglucan and pullulan, and animal polymers such as collagen, casein, albumin and gelatin. Examples of semi-synthetic water-soluble polymers include starch polymers such as carboxymethyl starch and methylhydroxypropyl starch, methylcellulose, nitrocellulose, ethylcellulose, methylhydroxypropylcellulose, hydroxyethylcellulose, sodium cellulose sulfate, hydroxypropylcellulose, Examples thereof include cellulose polymers such as sodium carboxymethyl cellulose (CMC), and alginic acid polymers such as sodium alginate and propylene glycol alginate. Synthetic water-soluble polymers include, for example, vinyl polymers such as polyvinyl alcohol, polyvinyl methyl ether polymers, polyvinyl pyrrolidone, carboxyvinyl polymers (CARBOPOL 940, 941; BF Goodrich), polyethylene glycol 20000, polyethylene glycol 6000, polyoxyethylene polymer such as polyethylene glycol 4000, copolymer polymer such as polyoxyethylene polyoxypropylene copolymer, acrylic polymer such as sodium polyacrylate, polyethyl acrylate, polyacrylamide, polyethylene Examples thereof include imines and cationic polymers.
特に、水系増粘剤のうちで疎水部を有するものを用いると、乳化組成物がシート材中で組成変化を起こしにくくなるため、より好ましい。これは、水系増粘剤の疎水部が油と相互作用することによって、水中に油を比較的安定に保持できるためと考えられ、また油の洗浄力を損なうこともない。ここでいう疎水部を有する水系増粘剤とは、側鎖に炭素数１０以上の疎水基を有する水溶性高分子のことをいう。このような乳化安定化能を持つ水系増粘剤として具体的には、アクリル酸・メタクリル酸アルキル共重合体（B.F.Goodrich 社製、商品名：ＰＥＭＵＬＥＮ ＴＲ−１、ＴＲ−２やカーボポールＥＴＤ等）、ヒドロキシエチルセルロースヒドロキシプロピルステアリルエーテルヒドロキシプロピルスルホン酸ナトリウム（特開平９−２３５３０１号公報）などが挙げられる。 In particular, it is more preferable to use an aqueous thickener having a hydrophobic portion because the emulsion composition is less likely to cause a composition change in the sheet material. This is considered to be because the hydrophobic part of the water-based thickener interacts with the oil, so that the oil can be kept relatively stable in water, and the detergency of the oil is not impaired. The aqueous thickener having a hydrophobic portion as used herein refers to a water-soluble polymer having a hydrophobic group having 10 or more carbon atoms in the side chain. Specific examples of such an aqueous thickener having an emulsion stabilizing ability include acrylic acid / alkyl methacrylate copolymers (manufactured by BF Goodrich, trade names: PEMULEN TR-1, TR-2, carbopol ETD, etc. ), Sodium hydroxyethylcellulose hydroxypropyl stearyl ether hydroxypropyl sulfonate (JP-A-9-235301), and the like.
水系増粘剤は１種または２種以上組み合わせて用いることができる。水系増粘剤の配合量は、乳化安定化の点から全組成中に０．０１質量％以上とし、シート材に含浸させやすい粘度にして加工性を良好にする点から、全組成中に０．５質量％以下とする。乳化安定化能と加工性とのバランスから、水系増粘剤は、全組成中に０．１〜０．４質量％の範囲で用いられることが好ましい。 One or more water-based thickeners can be used in combination. The blending amount of the water-based thickener is 0.01% by mass or more in the total composition from the viewpoint of stabilizing the emulsion, and is 0% in the total composition from the viewpoint of improving the workability by making the viscosity easy to impregnate the sheet material. .5% by mass or less. From the balance between the emulsion stabilizing ability and processability, the aqueous thickener is preferably used in the range of 0.1 to 0.4% by mass in the entire composition.
本発明においては、油性メイクアップ化粧料に対するクレンジング性能と油性感が少ない使用感の点から、沸点が１６０〜３００℃の油剤を用いる。中でも、沸点が１６０〜２５０℃の油剤が使用後の肌に対する残留感が弱い点から好ましく、更に、沸点が１６０〜２００℃、特に１６０〜１９０℃の油剤がクレンジング性能と肌に油性感が残らないという点で好ましい。 In the present invention, an oil agent having a boiling point of 160 to 300 ° C. is used from the viewpoint of cleansing performance for oily makeup cosmetics and a feeling of use with less oiliness. Among these, an oil agent having a boiling point of 160 to 250 ° C. is preferable from the point of weak residual feeling on the skin after use, and further, an oil agent having a boiling point of 160 to 200 ° C., particularly 160 to 190 ° C., leaves cleansing performance and an oily feeling on the skin. It is preferable in that it is not.
上記沸点を有する油剤としては、低沸点イソパラフィン、低沸点シリコーン油等が挙げられるが、クレンジング性能の点から低沸点イソパラフィンを上記沸点を有する油剤中５０質量％以上使用するのが特に好ましい。 Examples of the oil agent having the boiling point include low-boiling isoparaffins and low-boiling silicone oils, and it is particularly preferable to use 50% by mass or more of the low-boiling isoparaffin in the oil agent having the boiling point from the viewpoint of cleansing performance.
低沸点イソパラフィンは、一般的に炭素数が８〜１８の炭化水素の混合物であり、低分子量の炭化水素を含むと独特の匂いを有する。このような匂いは使用者によって嗜好がばらつくため、炭素数が８〜９の低分子量の炭化水素をできるだけ含まないものが好ましい。一方、炭素数が１６〜１８の高分子量の炭化水素を多く含むと洗浄力が劣り、使用後の油性感が強くなる傾向がある。このような点から、油剤としては炭素数が１０〜１５のイソパラフィン系炭化水素を多く含むことが好ましい。中でも、匂い、使用感とクレンジング性能のバランスから炭素数が１２のイソドデカンを多く含むことが好ましい。特に、イソドデカンを９０質量％以上、更に好ましくは９５質量％以上含有する低沸点イソパラフィンが、本発明において好適に用いられる。 Low boiling isoparaffin is generally a mixture of hydrocarbons having 8 to 18 carbon atoms, and has a unique odor when it contains low molecular weight hydrocarbons. Since such odors vary in taste depending on the user, it is preferable that the odor does not contain as low a low molecular weight hydrocarbon having 8 to 9 carbon atoms as possible. On the other hand, when a high molecular weight hydrocarbon having 16 to 18 carbon atoms is contained, the detergency is inferior and the oily feeling after use tends to be strong. From such a point, it is preferable that the oil contains a large amount of isoparaffinic hydrocarbon having 10 to 15 carbon atoms. Among them, it is preferable to contain a large amount of isododecane having 12 carbons from the balance of odor, feeling of use and cleansing performance. In particular, low-boiling isoparaffins containing 90% by mass or more, more preferably 95% by mass or more of isododecane are preferably used in the present invention.
低沸点イソパラフィンは、商品名でマルカゾールＲ（丸善石油化学）、ＩＰソルベント１６２０、２０２８等（以上、出光石油化学）、アイソパーＬ（エクソン化学）、アイソパーＨ（エクソンモービル）、アイソゾール３００、４００等（以上、新日本石油化学）等が挙げられるが、イソドデカンを高純度に含む点から、マルカゾールＲ（丸善石油化学）が特に好適に用いられる。 Low-boiling isoparaffins are trade names such as Marcazole R (Maruzen Petrochemical), IP Solvents 1620, 2028, etc. As described above, Nippon Petrochemical Co., Ltd.) and the like can be mentioned, but Marcazole R (Maruzen Petrochemical Co., Ltd.) is particularly preferably used because it contains isododecane with high purity.
また、低沸点シリコーン油としては、鎖状、環状のシリコーン油、例えば低重合度鎖状ジメチルポリシロキサン、オクタメチルシクロテトラシロキサンやデカメチルシクロペンタシロキサン等が挙げられる。 Examples of the low boiling point silicone oil include linear and cyclic silicone oils such as low-polymerization chain dimethylpolysiloxane, octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane.
沸点が１６０〜３００℃の油剤は１種又は２種以上組み合わせて用いることができる。沸点が１６０〜３００℃の油剤の配合量は、クレンジング性能の点から全組成中に５質量％以上とし、油性感が少ない使用感、及びシート材含浸時のシート材の疎水化を抑えてシート材中の液の移動を抑制する点から全組成中に３０質量％以下とする。特に、クレンジング性能、使用感とシート材の保存安定性のバランスから、沸点が１６０〜３００℃の油剤は、全組成中に１０〜２５質量％の範囲で用いられることが好ましい。 Oil agents having a boiling point of 160 to 300 ° C. can be used alone or in combination. The blending amount of the oil agent having a boiling point of 160 to 300 ° C. is 5% by mass or more in the whole composition from the viewpoint of cleansing performance, and the sheet feels less oily feeling and suppresses the hydrophobicity of the sheet material when impregnated with the sheet material. From the point which suppresses the movement of the liquid in a material, it shall be 30 mass% or less in the whole composition. In particular, an oil agent having a boiling point of 160 to 300 ° C. is preferably used in the range of 10 to 25% by mass in the total composition from the balance between cleansing performance, feeling of use and storage stability of the sheet material.
水中油型乳化組成物（Ｂ）の油相には、前記沸点が１６０〜３００℃の油剤以外の他の油剤を混合することが可能である。他の油剤は、メイクに対する洗浄力を保持する点から、油相に対して（処方量基準で）５０質量％以下、特に２０質量％以下で用いられることが好ましい。 In the oil phase of the oil-in-water emulsion composition (B), it is possible to mix other oil agents other than the oil agent having a boiling point of 160 to 300 ° C. The other oil agent is preferably used in an amount of 50% by mass or less, particularly 20% by mass or less (based on the prescription amount) with respect to the oil phase from the viewpoint of maintaining the detergency against makeup.
他の油剤としては、広く一般に化粧料原料として使用されている油剤を用いることができ、具体例としては、流動パラフィン、スクワラン等の炭化水素類、ステアリルアルコール、セチルアルコール、オレイルアルコール等の高級アルコール類、オレイン酸、リノール酸等の脂肪酸類、イソステアリルオクチルエーテル、セチル−１−メチルプロピルエーテル、セチル−１，３−ジメチルブチルエーテル等のジアルキルエーテル類、ミリスチン酸イソプロピル、パルミチン酸イソプロピル等の脂肪酸エステル類、脂肪酸トリグリセライド類、フッ素油等が挙げられる。 As other oil agents, oil agents widely used as cosmetic raw materials can be used. Specific examples include hydrocarbons such as liquid paraffin and squalane, higher alcohols such as stearyl alcohol, cetyl alcohol, and oleyl alcohol. , Fatty acids such as oleic acid and linoleic acid, dialkyl ethers such as isostearyl octyl ether, cetyl-1-methylpropyl ether, cetyl-1,3-dimethylbutyl ether, fatty acid esters such as isopropyl myristate and isopropyl palmitate , Fatty acid triglycerides, fluorine oil and the like.
また、水中油型乳化組成物（Ｂ）に含まれる水は、充分な洗浄力と良好な使用感の点から、全組成物中に１０質量％、更に３０質量％以上、特に５０質量％以上含まれることが好ましい。さらに、水中油型乳化組成物（Ｂ）に含まれる水相は、充分な洗浄力と良好な使用感の点から、全組成物中に４０〜９５質量％、更に７０〜９０質量％含まれることが好ましい。 Further, the water contained in the oil-in-water emulsion composition (B) is 10% by mass in the total composition, more than 30% by mass, especially 50% by mass or more from the viewpoint of sufficient detergency and good usability. It is preferably included. Furthermore, the water phase contained in the oil-in-water emulsion composition (B) is contained in the total composition in an amount of 40 to 95% by mass, and more preferably 70 to 90% by mass, from the viewpoint of sufficient detergency and good usability. It is preferable.
水中油型乳化組成物（Ｂ）の水相には、洗浄力を強化する目的で水溶性溶剤を用いることができる。特に炭酸エチレン、炭酸プロピレン、ヘキシレングリコール、及び１，２−ペンタンジオールから選択される１種以上は、マスカラなどの被膜を形成するメイク汚れに対し高い洗浄効果を発揮するために、水相の５０％程度まで用いることができる。上記溶剤の配合量は、洗浄力及び使用感の点から、水相に対して（処方量基準で）１〜５０質量％、特に５〜２５質量％とすることが好ましい。 In the water phase of the oil-in-water emulsion composition (B), a water-soluble solvent can be used for the purpose of enhancing the detergency. In particular, at least one selected from ethylene carbonate, propylene carbonate, hexylene glycol, and 1,2-pentanediol is used in the aqueous phase in order to exert a high cleaning effect on makeup stains that form a film such as mascara. Up to about 50% can be used. The blending amount of the solvent is preferably 1 to 50% by mass, particularly 5 to 25% by mass (based on the prescription amount) with respect to the aqueous phase in terms of detergency and usability.
また、水相に、例えば、エタノール、ポリオール等のアルコール類を含ませることにより使用感を向上させることができる。特に、エタノールの配合はさっぱり感の向上に、また、１，３−ブチレングリコールやグリセリンの配合はしっとり感の向上に効果が高い。 Moreover, usability can be improved by including alcohols, such as ethanol and a polyol, in an aqueous phase. In particular, the blending of ethanol is effective for improving the refreshing feeling, and the blending of 1,3-butylene glycol and glycerin is highly effective for improving the moist feeling.
界面活性剤を用いた乳化では油剤が系の中に安定に分散されてメイクアップ除去が遅くなるため、乳化・分散の安定化の機能は、前記の水系増粘剤に求めることが好ましい。また、界面活性剤は、本発明の効果が損なわれない範囲で、シート材に対する乳化組成物の濡れ性や浸透性を向上させる目的で、少量用いることが可能である。油剤のクレンジング性能を妨げない範囲で用いるためには、界面活性剤の配合量は、全組成中に１質量％以下とすることが好ましく、更に０．５質量％以下、特に０．０５質量％以下であることが好ましい。 In the emulsification using a surfactant, the oil agent is stably dispersed in the system and make-up removal is delayed. Therefore, the function of stabilizing the emulsification / dispersion is preferably obtained from the aqueous thickener. The surfactant can be used in a small amount for the purpose of improving the wettability and penetrability of the emulsion composition with respect to the sheet material as long as the effects of the present invention are not impaired. In order to use it within a range that does not interfere with the cleansing performance of the oil agent, the blending amount of the surfactant is preferably 1% by mass or less, more preferably 0.5% by mass or less, particularly 0.05% by mass in the total composition. The following is preferable.
界面活性剤は１種または２種以上組み合わせて用いることができる。具体的な例としては、肌に対してマイルドである点から、ポリオキシエチレンアルキルエーテル類やショ糖脂肪酸エステル類、脂肪酸モノグリセライド類、ソルビタン脂肪酸エステル及びそのポリオキシアルキレン付加型、ポリオキシエチレン硬化ひまし油及びその脂肪酸エステル、ポリオキシアルキレン脂肪酸エステル系等の非イオン界面活性剤が挙げられる。 Surfactant can be used 1 type or in combination of 2 or more types. Specific examples include polyoxyethylene alkyl ethers, sucrose fatty acid esters, fatty acid monoglycerides, sorbitan fatty acid esters and their polyoxyalkylene addition types, polyoxyethylene hydrogenated castor oil, because they are mild to the skin. And nonionic surfactants such as fatty acid esters and polyoxyalkylene fatty acid esters thereof.
なお、必要に応じて、上記水系増粘剤を中和し、増粘させるための中和剤を用いても良い。中和剤としては、特に制限されるものでなく、化粧料に許容されるものであればいずれも使用できる。例えば、水酸化ナトリウム、水酸化カリウム等の無機アルカリ剤、Ｌ−アルギニン等の塩基性アミノ酸、トリエタノールアミン等のアミン類、アンモニア等が挙げられる。中和剤の添加量はその種類によって異なり、特に限定されるものではなく、水系増粘剤の種類、使用量等によって決定すればよいが、通常、０.００５〜０．５質量％程度である。そして、中和剤は、予め水に溶解することで、或いは直接水系増粘剤と混合して添加すればよい。 If necessary, a neutralizing agent for neutralizing and thickening the aqueous thickener may be used. The neutralizing agent is not particularly limited, and any neutralizing agent can be used as long as it is acceptable for cosmetics. Examples thereof include inorganic alkali agents such as sodium hydroxide and potassium hydroxide, basic amino acids such as L-arginine, amines such as triethanolamine, ammonia and the like. The addition amount of the neutralizing agent varies depending on the type, and is not particularly limited, and may be determined depending on the type of the water-based thickener, the amount used, etc., but is usually about 0.005 to 0.5% by mass. is there. The neutralizing agent may be added by dissolving in water in advance or directly mixed with an aqueous thickener.
また、水中油型乳化組成物（Ｂ）には上記成分のほか、通常のクレンジング組成物に用いられる成分、例えば保湿剤、油ゲル化剤、紫外線吸収剤、香料、顔料、染料、塩類、安定化剤、防腐剤、酸化防止剤、ビタミン類、タンパク質、コンディショニング剤等の各種添加剤を、本発明の目的及び効果を損なわない質的及び量的範囲内で添加することができる。 In addition to the above components, the oil-in-water emulsion composition (B) includes components used in ordinary cleansing compositions such as humectants, oil gelling agents, ultraviolet absorbers, fragrances, pigments, dyes, salts, Various additives such as agents, preservatives, antioxidants, vitamins, proteins, and conditioning agents can be added within a qualitative and quantitative range that does not impair the purpose and effect of the present invention.
水中油型乳化組成物（Ｂ）は、水系増粘剤を分散させた水相に油相を添加することで調製される。その際、粘度は１００〜２，０００ｍＰａ・ｓ、特に２００〜１，０００ｍＰａ・ｓになるように調製されることが好ましい。上記範囲であれば、油剤の保持性に優れ、且つ、乳化組成物を含浸させた後の液の滲み出し感が十分になる。なお、粘度とは、ＢＭ型粘度計（トキメック社製）を用いて、ローターＮｏ.２、６ｒｐｍ、３０℃の条件で測定した値をいう。 The oil-in-water emulsion composition (B) is prepared by adding an oil phase to an aqueous phase in which an aqueous thickener is dispersed. In that case, it is preferable that the viscosity is adjusted to 100 to 2,000 mPa · s, particularly 200 to 1,000 mPa · s. If it is the said range, it will be excellent in the holding | maintenance of an oil agent, and the ooze-out feeling of the liquid after impregnating an emulsion composition will become enough. In addition, a viscosity means the value measured on conditions of rotor No. 2, 6 rpm, and 30 degreeC using BM type | mold viscosity meter (made by Tokimec).
本発明で調製される乳化組成物（Ｂ）は、クレンジング性能と使用感の点から、放置すると経時的に分離が進み、透明な水相と粘度の高い乳化相に分かれるものであることが好ましい。具体的には、均一に調製された後、３０℃で静置した場合に、１日以上１ヵ月以内に、水相とその他の乳化相に分離（クリーミング）するような、やや不安定な乳化組成物であることが好ましい。したがって、不織布（Ａ）への含浸は分離が進む前に行う。適切に選択された不織布（Ａ）に含浸された乳化組成物（Ｂ）は、その不織布内で上下移動及び分離が抑えられる。乳化組成物（Ｂ）はやや不安定な乳化組成物であるため、水相も高分子によって増粘されている安定な乳化組成物と比べて、使用時のシートからの液の滲み出しが良好で、且つ、クレンジング性能に優れる。 The emulsified composition (B) prepared in the present invention is preferably one that is separated into a transparent aqueous phase and a highly viscous emulsified phase from the viewpoint of cleansing performance and usability when it is allowed to stand. . Specifically, a slightly unstable emulsification that, when prepared at 30 ° C. after uniform preparation, separates (creaming) into an aqueous phase and other emulsified phase within 1 day to 1 month. A composition is preferred. Therefore, impregnation into the nonwoven fabric (A) is performed before separation proceeds. The emulsified composition (B) impregnated in the appropriately selected nonwoven fabric (A) can be prevented from moving up and down and separated in the nonwoven fabric. Since the emulsified composition (B) is a slightly unstable emulsified composition, the aqueous phase has better oozing of the liquid from the sheet than the stable emulsified composition whose viscosity is increased by the polymer. And excellent cleansing performance.
不織布（Ａ）１ｇに対して含浸させる乳化組成物（Ｂ）の量は、良好な使用感の点から２〜５ｇが好ましく、特に２．５〜４．５ｇが好ましい。 The amount of the emulsified composition (B) to be impregnated with respect to 1 g of the nonwoven fabric (A) is preferably 2 to 5 g, particularly preferably 2.5 to 4.5 g, from the viewpoint of good usability.
本発明のシート状クレンジング材は、不織布（Ａ）に、乳化組成物（Ｂ）をノズルから滴下することにより塗布、あるいはスプレーし、その後放置してシート材料に十分に含浸させることにより製造することができる。 The sheet-like cleansing material of the present invention is manufactured by applying or spraying the emulsified composition (B) to the nonwoven fabric (A) from a nozzle, and then leaving it to sufficiently impregnate the sheet material. Can do.
本発明のシート状クレンジング材は、通常、一枚ずつ、もしくは複数枚を重ねて袋に密封して使用に供する。使用時には、袋を開封し、中からシート状クレンジング材を一枚ずつ取り出し、油性メイクアップ化粧料、水性メイクアップ化粧料の区別なく、メイクアップ化粧料を除去したい部位に押し当て、メイクアップ化粧料を拭き取るようにして使用する。これにより、種々のタイプのメイクアップ汚れに対して優れたクレンジング効果を発揮し、簡便且つ迅速に水性メイクアップ化粧料及び油性メイクアップ化粧料の双方を十分に除去できる。 The sheet-type cleansing material of the present invention is usually used one by one or by stacking a plurality of sheets and sealing them in a bag. When using, open the bag, take out the sheet-like cleansing material one by one, press it against the site where you want to remove the makeup cosmetic, regardless of whether it is oily makeup cosmetic or aqueous makeup cosmetic, make-up makeup Use as if wiping off the material. Thereby, the cleansing effect excellent with respect to various types of makeup stain | pollution | contamination is exhibited, and both water-based makeup cosmetics and oil-based makeup cosmetics can fully be removed easily and rapidly.
本発明のクレンジング材料は、積層シートの形態で長期間保存しても、含浸液の上下移動が抑制され、組成も変化しないため、安定に品質を維持できる。 Even if the cleansing material of the present invention is stored in the form of a laminated sheet for a long period of time, the vertical movement of the impregnating liquid is suppressed and the composition does not change, so that the quality can be stably maintained.
（クレンジング性能の評価方法）
洗浄力の評価には、一般的なメイク汚れのうちでも最も強固な汚れである油性マスカラを用いた。
(Cleansing performance evaluation method)
For the evaluation of the cleaning power, an oily mascara, which is the strongest stain among general makeup stains, was used.
油性マスカラ（コーセー スポーツ ビューティ ファシオ パワーステイマスカラ（カールロング）ＢＫ００１（商品名））０．００４５ｇをスライドガラス上で直径１．２ｃｍの円状に均一塗布して、１２時間放置して乾燥させた。各シート状クレンジング材をマスカラにあてて、５秒間軽く押さえてから一定圧（１００ｇ／ｃｍ2 ）で拭き取りを行い、マスカラを除去するのに必要な拭き取り回数を測定した。
［評価基準］
◎ ：５回以下
○ ：６〜１０回
△ ：１１〜１５回
× ：１６回以上
0.0045 g of oily mascara (Kose Sports Beauty Facio Power Stay Mascara (Karl Long) BK001 (trade name)) was uniformly applied in a circular shape with a diameter of 1.2 cm on a slide glass and left to dry for 12 hours. Each sheet-type cleansing material was applied to mascara and lightly pressed for 5 seconds, then wiped off at a constant pressure (100 g / cm 2 ), and the number of times of wiping required to remove the mascara was measured.
[Evaluation criteria]
◎: 5 times or less ○: 6-10 times Δ: 11-15 times ×: 16 times or more
（使用感の評価方法）
専門パネラー１０名が各シート状クレンジング材で顔を拭き取った後、肌の感じを官能評価した。
［評価基準］
◎；１０名中９名以上が、べたつかず油性感がないと評価した。
○；１０名中７〜８名が、べたつかず油性感がないと評価した。
△；１０名中５〜６名が、べたつかず油性感がないと評価した。
(Evaluation method of usability)
Ten professional panelists wiped their faces with each sheet-like cleansing material, and then sensoryly evaluated the feeling of the skin.
[Evaluation criteria]
A: Nine or more out of 10 people evaluated that there was no stickiness and oiliness.
◯: 7 to 8 out of 10 people evaluated that there was no stickiness and oiliness.
(Triangle | delta): Five to six persons evaluated that it was not sticky and oily.
（匂いの評価方法）
専門パネラー１０名が各シート状クレンジング材で顔を拭き取った際またはその後、匂いを官能評価した。
［評価基準］
○；１０名中８名以上が、使用において許容できる匂いであると評価した。
△；１０名中５〜７名が、使用において許容できる匂いであると評価した。
(Odor evaluation method)
When 10 professional panelists wiped their faces with each sheet-like cleansing material, or after that, the odor was subjected to sensory evaluation.
[Evaluation criteria]
◯: Eight or more out of 10 people evaluated that the odor was acceptable in use.
Δ: 5 to 7 out of 10 people evaluated that the odor was acceptable in use.
（品質安定性の評価方法：調製直後及び保存後の含浸率）
７５ｍｍ×２００ｍｍの大きさに切った不織布（以下、シートということがある）をＺ折りにして４０枚重ね、乳化組成物を含浸させた。ここで調製直後の含浸率を測定する。
次にこの積層体をアルミピローに入れて密封し、５０℃１ヵ月保存した。その後、室温に戻し、上から２枚目と３９枚目のシートの含浸率、及びそれぞれのクレンジング性能を評価した。含浸率は、各含浸シートの重量を測定した後、洗剤にてシートを洗い、水ですすいで乾燥したシートの重量を測定することにより、下式により算出される。
含浸率％＝（含浸シート重量−乾燥シート重量）×１００／乾燥シート重量
［評価基準］
◎：調製直後の含浸率に対し、保存後の含浸率の変化が±２５％以内である。
○：調製直後の含浸率に対し、保存後の含浸率の変化が±２５％より大きく±４０％以内である。
△：調製直後の含浸率に対し、保存後の含浸率の変化が±４０％より大きく±６０％以内である。
×：調製直後の含浸率に対し、保存後の含浸率の変化が±６０％より大きい。
(Quality stability evaluation method: impregnation rate immediately after preparation and after storage)
A nonwoven fabric cut to a size of 75 mm × 200 mm (hereinafter, sometimes referred to as a sheet) was Z-folded and 40 sheets were stacked and impregnated with the emulsified composition. Here, the impregnation rate immediately after preparation is measured.
Next, this laminate was sealed in an aluminum pillow and stored at 50 ° C. for 1 month. Then, it returned to room temperature and evaluated the impregnation rate of the 2nd sheet | seat and 39th sheet | seat from the top, and each cleansing performance. The impregnation rate is calculated by the following equation by measuring the weight of each impregnated sheet, washing the sheet with a detergent, rinsing with water, and measuring the weight of the dried sheet.
Impregnation rate% = (impregnated sheet weight−dry sheet weight) × 100 / dry sheet weight [evaluation criteria]
A: The change in the impregnation ratio after storage is within ± 25% of the impregnation ratio immediately after preparation .
○: The change in the impregnation rate after storage is greater than ± 25 % and within ± 40% with respect to the impregnation rate immediately after preparation .
(Triangle | delta): The change of the impregnation rate after storage is more than ± 40 % and within ± 60% with respect to the impregnation rate immediately after preparation .
X: The change in the impregnation rate after storage is greater than ± 60% with respect to the impregnation rate immediately after preparation .
（粘度）
ＢＭ型粘度計（トキメック社製）を用いて、ローターＮｏ.２、６ｒｐｍ、３０℃の条件で測定した。
(viscosity)
Using a BM viscometer (manufactured by Tokimec), measurement was performed under the conditions of rotor No. 2, 6 rpm, and 30 ° C.
（乳化組成物の安定性評価）
調製された乳化組成物をねじ口キャップつきガラスビンに入れ、３０℃の恒温室に保管した。１日後、３日後、７日後、１０日後、１４日後、１ヵ月後に外観の変化を観察した。
(Evaluation of stability of emulsified composition)
The prepared emulsified composition was put in a glass bottle with a screw cap and stored in a thermostatic chamber at 30 ° C. After 1 day, 3 days, 7 days, 10 days, 14 days, and 1 month, changes in appearance were observed.
（実施例１〜１０、比較例１〜３）
表１に示す組成で乳化組成物を調製し、それをコットン１００％、密度０．１５ｇ／ｃｍ3、平均坪量６０ｇ／ｍ2の不織布に、不織布１ｇに対して乳化組成物３．５ｇを含浸させてサンプルを調製した。評価結果を表１に併せて示す。各成分の量は質量部である。
(Examples 1-10, Comparative Examples 1-3)
An emulsified composition was prepared with the composition shown in Table 1, and 100 g of cotton, a density of 0.15 g / cm 3 , and an average basis weight of 60 g / m 2 were added to 3.5 g of the emulsified composition per 1 g of the non-woven fabric. A sample was prepared by impregnation. The evaluation results are also shown in Table 1. The amount of each component is parts by mass.
（乳化組成物の製法）
水（成分（１３））に水系増粘剤（成分（１）〜（３））を添加してディスパーで１，２００ｒｐｍ、３０分攪拌して均一に分散させた。プロペラ２００ｒｐｍで攪拌しながら、中和剤（成分（１５））を添加して１０分間保持して中和・増粘させた。攪拌を継続し、成分（９）〜（１２）及び成分（１４）を加えて溶解した。そこに、成分（４）〜（８）をゆっくりと滴下し２時間保持して、その後アジホモミキサー４，５００ｒｐｍで３０分攪拌して、乳化組成物を得た。
(Method for producing emulsified composition)
An aqueous thickener (components (1) to (3)) was added to water (component (13)), and the mixture was stirred and dispersed uniformly at 1,200 rpm for 30 minutes. While stirring with a propeller at 200 rpm, a neutralizing agent (component (15)) was added and held for 10 minutes to neutralize and thicken. Stirring was continued, and components (9) to (12) and component (14) were added and dissolved. Thereto, components (4) to (8) were slowly added dropwise and held for 2 hours, and then stirred at 4,500 rpm for 30 minutes to obtain an emulsified composition.
なお、使用した材料の由来を以下に示す。
＊１ アクリル酸・メタクリル酸アルキル共重合体：商品名ＰＥＭＵＬＥＮ ＴＲ−２、Ｂ．Ｆ．Ｇｏｏｄｒｉｃｈ
＊２ アクリル酸・メタクリル酸アルキル共重合体：商品名カーボポールＥＴＤ、Ｂ．Ｆ．Ｇｏｏｄｒｉｃｈ
＊３ ヒドロキシエチルセルロースヒドロキシプロピルステアリルエーテルヒドロキシプロピルスルホン酸ナトリウム（特開平９−２３５３０１号公報）
＊４ 低沸点イソパラフィン（沸点１６６〜２０２℃）：商品名ＩＰソルベント１６２０、出光石油化学（株）
＊５ 低沸点イソパラフィン（沸点２１３〜２６２℃）：商品名ＩＰソルベント２０２８、出光石油化学（株）
＊６ 低沸点イソパラフィン（沸点１７５〜１８５℃）：商品名マルカゾールＲ、丸善石油化学（株）
＊７ 調製直後より二相に分離
In addition, the origin of the used material is shown below.
* 1 Acrylic acid / alkyl methacrylate copolymer: Trade name PEMULEN TR-2, B.I. F. Goodrich
* 2 Acrylic acid / alkyl methacrylate copolymer: Trade name Carbopol ETD, B.R. F. Goodrich
* 3 Hydroxyethyl cellulose hydroxypropyl stearyl ether sodium hydroxypropyl sulfonate (JP-A-9-235301)
* 4 Low boiling point isoparaffin (boiling point 166-202 ° C.): Trade name IP solvent 1620, Idemitsu Petrochemical Co., Ltd.
* 5 Low boiling point isoparaffin (boiling point 213-262 ° C): Trade name IP Solvent 2028, Idemitsu Petrochemical Co., Ltd.
* 6 Low boiling point isoparaffin (boiling point 175-185 ° C): Trade name Marcazole R, Maruzen Petrochemical Co., Ltd.
* 7 Separated into two phases immediately after preparation
表１に示された結果から、本発明に用いられる不織布（Ａ）に、水系増粘剤と沸点が１６０〜３００℃の油剤を所定量用いた乳化組成物（Ｂ）を含浸させた実施例１〜１０においては、簡便且つ迅速に最も落とし難い油性マスカラを除去することができ、使用感が良好であった。不織布を積層して保存した後も、２枚目も３９枚目もクレンジング性能に優れ、品質安定性に優れることが明らかになった。匂いについては、炭素数８及び９のイソパラフィンを含むＩＰソルベント１６２０を用いたものについて、やや劣る評価となった。 From the results shown in Table 1, the nonwoven fabric (A) used in the present invention was impregnated with an emulsified composition (B) using a predetermined amount of an aqueous thickener and an oil having a boiling point of 160 to 300 ° C. In Nos. 1 to 10, the oily mascara that was most difficult to remove could be removed easily and quickly, and the usability was good. Even after the non-woven fabrics were laminated and stored, the second and 39th sheets were found to be excellent in cleansing performance and excellent in quality stability. As for the odor, the evaluation using the IP solvent 1620 containing isoparaffins having 8 and 9 carbon atoms was slightly inferior.
実施例５では、界面活性剤を許容上限添加して、１ヵ月後にも分離しない比較的安定な乳化組成物を用い、本発明の効果が得られたが、同じ低沸点油剤を同量用いた実施例２と比較すると、水系増粘剤のみで乳化させた実施例２の方が、効果がより優れるものであった。 In Example 5, a surfactant was added to the allowable upper limit, and a relatively stable emulsion composition that did not separate after one month was used. The effect of the present invention was obtained, but the same amount of the same low-boiling oil was used. Compared with Example 2, the effect of Example 2 emulsified only with an aqueous thickener was more excellent.
また、ヘキシレングリコールを配合した実施例４は、被膜形成型マスカラを用いて前記と同様にクレンジング性能を評価したところ、被膜形成型マスカラに対するクレンジング性能にも優れるものであった。 Moreover, when Example 4 which mix | blended hexylene glycol evaluated the cleansing performance similarly to the above using the film formation type mascara, it was excellent also in the cleansing performance with respect to the film formation type mascara.
一方、水系増粘剤の代わりに一般的に乳化剤として用いられる界面活性剤を用いて、通常クレンジング組成物として配合される量で調製した比較例１は、前記特許文献２（特開平５−１６３１１６号公報）の組成物に対応するが、クレンジング性能が非常に劣り、使用感も悪いものであった。水系増粘剤を用いずに、沸点が１６０〜３００℃の油剤のみを用いた比較例２は、乳化組成物が水相と油相が分離し、シート材調製直後のクレンジング性能は優れるものであったが、保存後は液体の含浸率及び組成に大きな差ができ、保存後の３９枚目のシートはクレンジング性能が非常に劣るものになった。また、水系増粘剤と沸点が１６０〜３００℃の油剤を用いたが、該油剤量が本発明に用いられる量よりも多い比較例３は、使用感に劣り、また、シート内で液体が安定せず、保存後の液体の含浸率及び組成に差ができた。 On the other hand, Comparative Example 1 prepared by using a surfactant that is generally used as an emulsifier instead of an aqueous thickener in an amount that is usually blended as a cleansing composition is described in Patent Document 2 (Japanese Patent Laid-Open No. 5-163116). However, the cleansing performance was very inferior and the usability was also poor. In Comparative Example 2 using only an oil agent having a boiling point of 160 to 300 ° C. without using an aqueous thickener, the aqueous composition and the oil phase are separated from the emulsion composition, and the cleansing performance immediately after preparation of the sheet material is excellent. However, after storage, there was a large difference in the liquid impregnation rate and composition, and the 39th sheet after storage was very poor in cleansing performance. Moreover, although the water-system thickener and the oil agent whose boiling point is 160-300 degreeC were used, the comparative example 3 whose amount of this oil agent is more than the quantity used for this invention is inferior to a usability | use_condition, and a liquid is in a sheet | seat. It was not stable, and there was a difference in the impregnation rate and composition of the liquid after storage.
（実施例１１〜１４、比較例４〜６）
表２に示す組成、密度、坪量を有する不織布に、実施例１１〜１４及び比較例４〜５については実施例２で調製された乳化組成物を、比較例６については実施例５で調製された乳化組成物を、表２に示す液量で含浸させてサンプルを調製した。評価結果を表２に併せて示す。なお、実施例２も表２に併記した。
(Examples 11-14, Comparative Examples 4-6)
For the nonwoven fabrics having the composition, density and basis weight shown in Table 2, the emulsified compositions prepared in Example 2 for Examples 11 to 14 and Comparative Examples 4 to 5 were prepared in Example 5 for Comparative Example 6. A sample was prepared by impregnating the emulsified composition with the liquid amount shown in Table 2. The evaluation results are also shown in Table 2. Example 2 is also shown in Table 2.
表２に示された結果から、本発明に係る実施例２、１１〜１４については、クレンジング性能、使用感、品質安定性において優れるものであった。一方、本発明で用いられるものよりも密度が低い不織布を用いた比較例４は、保存後含浸率に差ができ、保存後は２枚目と３９枚目とで異なるクレンジング性能となった。また、疎水性繊維であるＰＥＴ（ポリエチレンテレフタレート）を５０％含む不織布を用いた比較例５も、保存後含浸率に差ができ、保存後は２枚目と３９枚目とで異なるクレンジング性能となった。さらに、安定な水中油型乳化組成物と本発明で用いられるものよりも密度が低い不織布を用いた比較例６により、安定な水中油型乳化組成物を用いても、含浸させるシートの条件が適切でないと、保存後含浸率に差ができ、クレンジング性能が変化して安定に品質を維持できなくなることが明らかにされた。
From the results shown in Table 2, Examples 2 and 11 to 14 according to the present invention were excellent in cleansing performance, usability, and quality stability. On the other hand, Comparative Example 4 using a non-woven fabric having a lower density than that used in the present invention has a difference in the impregnation rate after storage, and after the storage, the cleansing performance differs between the second sheet and the 39th sheet. In addition, Comparative Example 5 using a nonwoven fabric containing 50% of PET (polyethylene terephthalate), which is a hydrophobic fiber, has a difference in the impregnation rate after storage, and the cleansing performance differs between the second sheet and the 39th sheet after storage. became. Furthermore, according to Comparative Example 6 using a stable oil-in-water emulsion composition and a non-woven fabric having a lower density than that used in the present invention, the conditions of the sheet to be impregnated even when a stable oil-in-water emulsion composition is used. When it was not appropriate, it was revealed that the impregnation rate after storage could be different, and the cleansing performance would change and the quality could not be stably maintained.
Claims (4)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003384782A JP4001858B2 (en) | 2003-11-14 | 2003-11-14 | Sheet cleansing material |
| CNB2004100908501A CN100431518C (en) | 2003-11-14 | 2004-11-12 | Sheet cosmetic removing material |
| TW93134646A TWI330534B (en) | 2003-11-14 | 2004-11-12 | Cleansing sheet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003384782A JP4001858B2 (en) | 2003-11-14 | 2003-11-14 | Sheet cleansing material |
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| JP2005145872A JP2005145872A (en) | 2005-06-09 |
| JP4001858B2 true JP4001858B2 (en) | 2007-10-31 |
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| Country | Link |
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| JP (1) | JP4001858B2 (en) |
| CN (1) | CN100431518C (en) |
| TW (1) | TWI330534B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4808808B2 (en) | 2006-06-12 | 2011-11-02 | ザ プロクター アンド ギャンブル カンパニー | Lotion wipes containing anti-sticking agents and performance improvers |
| US9119779B2 (en) | 2006-06-12 | 2015-09-01 | The Procter & Gamble Company | Lotioned wipe product comprising an anti-stick agent and a performance enhancing agent |
| JP2008184413A (en) * | 2007-01-29 | 2008-08-14 | Kao Corp | Cleansing composition |
| JP5069940B2 (en) * | 2007-04-24 | 2012-11-07 | ポーラ化成工業株式会社 | Emulsifier type skin external preparation |
| JP5997517B2 (en) * | 2012-07-03 | 2016-09-28 | 花王株式会社 | Aqueous cosmetics |
| JP5705912B2 (en) * | 2013-04-30 | 2015-04-22 | 花王株式会社 | Skin cleanser composition |
| US9943709B2 (en) | 2013-04-30 | 2018-04-17 | Kao Corporation | Skin cleansing composition |
| JP6199081B2 (en) * | 2013-04-30 | 2017-09-20 | 花王株式会社 | Skin cleaning sheet |
| WO2014178371A1 (en) * | 2013-04-30 | 2014-11-06 | 花王株式会社 | Skin cleanser composition |
| JP6125671B2 (en) * | 2014-01-23 | 2017-05-10 | 株式会社マンダム | Cleansing sheet |
| US11039990B2 (en) | 2018-05-04 | 2021-06-22 | Johnson & Johnson Consumer Inc. | Cleansing compositions |
| WO2020053945A1 (en) * | 2018-09-10 | 2020-03-19 | Kao Corporation | Multi-layered cleansing composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5585104A (en) * | 1995-04-12 | 1996-12-17 | The Procter & Gamble Company | Cleansing emulsions |
| US5798111A (en) * | 1997-06-27 | 1998-08-25 | Chesebrough-Pond's Usa Co., Division Of Conopco, Inc. | Clear emulsion cosmetic compositions |
| WO2001030309A1 (en) * | 1999-10-26 | 2001-05-03 | Unilever Plc | Non-greasy make-up remover |
| JP2001302450A (en) * | 2000-04-21 | 2001-10-31 | Kao Corp | Cleansing material |
-
2003
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| CN100431518C (en) | 2008-11-12 |
| TWI330534B (en) | 2010-09-21 |
| JP2005145872A (en) | 2005-06-09 |
| TW200518777A (en) | 2005-06-16 |
| CN1615812A (en) | 2005-05-18 |
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