JP3547923B2 - Paste detergent composition - Google Patents

Description

（式中、Ｒ¹、Ｒ²及びＲ³は炭素数８〜１８の飽和又は不飽和の炭化水素基を示し、Ｘ¹、Ｘ²及びＸ³は水素原子、アルカリ金属原子、アルカリ土類金属原子、アンモニウム、アルカノールアミンを示す）
で表されるリン酸エステル系界面活性剤 １０〜３０重量％、
（Ｂ）高級脂肪酸塩 １０〜３０重量％、
（Ｃ）融点が５０℃以上のエチレングリコールジステアレート ８〜１０重量％
を含有し、成分（Ａ）と成分（Ｂ）の重量比が８５／１５〜１５／８５であり、粘度が１００〜１００００Ｐであるペースト状洗浄剤組成物を提供するものである。
【０００８】
【発明の実施の形態】
本発明に用いる成分（Ａ）のリン酸エステル系界面活性剤は、前記一般式（１）又は（２）で表されるものである。
【００１１】
上記式（１）及び（２）において、Ｒ^１ 、Ｒ^２ 及びＲ^３ で示される炭素数８〜１８の飽和又は不飽和の炭化水素基としては直鎖又は分岐鎖のアルキル基又はアルケニル基が好ましい。具体的には、オクチル基、ノニル基、デシル基、ウンデシル基、ドデシル基、トリデシル基、テトラデシル基、ペンタデシル基等の直鎖アルキル基及びこれらの分岐鎖アルキル基、オクテニル基、ノネニル基、デセニル基、ウンデセニル基、ドデセニル基、トリデセニル基、テトラデセニル基、ペンタデセニル基等の直鎖アルキル基及びこれらの分岐鎖アルケニル基が挙げられる。Ｒ^１ 、Ｒ^２ 及びＲ^３ としては、これらのうち炭素数１２〜１４のものが好ましく、特に炭素数１２〜１４のアルキル基が好ましい。これらのアルキル基、アルケニル基は単一鎖長のものでもよく、鎖長の異なるものの混合体であってもよい。
【００１２】
Ｘ^１ 、Ｘ^２ 及びＸ^３ としては、例えばナトリウム、カリウム、マグネシウム、カルシウム、モノエタノールアミン、ジエタノールアミン、トリエタノールアミン、アルギニン、リジン等が挙げられ、このうちアルカリ金属、トリエタノールアミンがより好ましい。
【００１３】
本発明において成分（Ａ）のリン酸エステル系界面活性剤は、上記（１）又は（２）で表されるものを単独又は任意の割合で混合して使用されるが、その中でも特に式（１）の化合物と式（２）の化合物を重量比で１００：０〜５０：５０となるように混合したものが好ましい。
【００１４】
特に好ましい具体例としては例えばモノ−又はジラウリルリン酸ナトリウム、モノ−又はジラウリルリン酸カリウム、モノ−又はジラウリルリン酸ジエタノールアミン、モノ−又はジラウリルリン酸トリエタノールアミン、モノ−又はジミリスチルリン酸ナトリウム、モノ−又はジミリスチルリン酸カリウム、モノ−又はジミリスチルリン酸トリエタノールアミン、モノ−又はジオレイルリン酸ナトリウム、モノ−又はジオレイルリン酸カリウム、モノパルミチルリン酸カリウム、モノパルミチルリン酸トリエタノールアミン、モノステアリルリン酸カリウム、モノステアリルリン酸トリエタノールアミン等が挙げられる。
【００１５】
成分（Ａ）のリン酸エステル系界面活性剤は、本発明ペースト状洗浄剤組成物中に好ましくは５〜８０重量％（以下単に％と記載する）、より好ましくは１０〜３０％配合される。
【００１６】
成分（Ｂ）の高級脂肪酸塩としては、例えば次の一般式（３）
Ｒ^４−ＣＯＯＭ （３）
（式中、Ｒ^４ は炭素数７〜１７の飽和又は不飽和の炭化水素基を、Ｍはアルカリ金属原子、アンモニウム又はアルカノールアミンを示す）
で表されるものが挙げられる。
【００１７】
この高級脂肪酸塩は、洗浄剤組成物を製造する配合槽中で高級脂肪酸と該塩基を中和反応せしめて調製してもよい。また、高級脂肪酸塩の一部はリン酸エステル塩の水素対イオンと塩交換を生じていても本発明の効果の妨げとはならない。
【００１８】
成分（Ｂ）の高級脂肪酸塩は単独又は２種以上の混合物として使用でき、成分（Ｂ）の配合量は、本発明のペースト状洗浄剤組成物に洗浄性、起泡性及び適度な粘度を与える点から、当該組成物中５〜８０％が好ましく、１０〜３０％が特に好ましい。
【００１９】
本発明のペースト状洗浄剤組成物において成分（Ａ）と成分（Ｂ）の好ましい配合量は上記のとおりであるが、更に成分（Ａ）と成分（Ｂ）の配合比は重量比で８５／１５〜１５／８５とすることが洗浄力、起泡力、泡の感触及び皮膚刺激性の点から好ましく、６０／４０〜４０／６０が特に好ましい。
【００２０】
成分（Ｃ）の融点が５０℃以上の固体脂（常温での形態が固体状の油性成分をいう）としては、例えば炭化水素類、高級アルコール類、高級脂肪酸、高級脂肪酸エステル類、脂肪酸アルカノールアミド、動植物油脂、コレステロール脂肪酸エステル類等が挙げられ、特に好ましいものとしては固形パラフィン、ステアリン酸、ステアリルアルコール、エチレングリコールジステアレート、ラウリン酸エタノールアミド、硬化ヤシ油などが挙げられる。
【００２１】
成分（Ｃ）の配合量は、本発明のペースト状洗浄剤組成物に良好な起泡性と適度の粘度を与える点から、当該組成物中６〜５０％が好ましく、８〜２０％が特に好ましい。
【００２２】
本発明においてペースト状とは粘度が１００〜１００００Ｐ（ポアズ）のものを意味し、成分（Ｂ）の高級脂肪酸塩の配合量を調整することにより洗浄剤組成物をペースト状とすることができる。
【００２３】
このように成分（Ｂ）の配合量を増やすことにより組成物の粘度を上げることができ、成分（Ｃ）の配合により粘度を低下させることなく、組成物のべたつき（ねばり）を改善することができる。
【００２４】
本発明のペースト状洗浄剤組成物には、その使用目的に応じ、更に色素、香料、殺菌剤、消炎剤、キレート剤、増泡剤、防腐剤、湿潤剤、他の界面活性剤等を本発明の効果を損なわない範囲で配合することができる。
【００２５】
本発明のペースト状洗浄剤組成物は常法により製造することができ、皮膚の洗浄に使用するのが好ましく、洗顔料、特にチューブに充填した形態の洗顔料として用いるのが好ましい。
【００２６】
【実施例】
以下、実施例を挙げて本発明を更に詳細に説明するが、本発明はこれらに限定されるものではない。
【００２７】
実施例１
表１に示す組成の洗顔料を常法に従って調製し、起泡性及び使用性について評価した。結果を表１に示す
【００２８】
（起泡性）
各洗浄剤組成物について、１０倍希釈水溶液を調製し、この水溶液１００ｍｌ（液温４０℃）を目盛付きシリンダーに注入した。次いで、水溶液中に攪拌羽根を設置して羽根を回転させ、攪拌開始から３０秒後において生じた泡の体積（ｍｌ）を測定して泡立ち量とし、下記基準で評価した。なお、攪拌羽根の回転数は１，０００ｒｐｍであり、５秒毎に反転させた。
【００２９】
◎；泡立ち量 ２００ｍｌ以上
○；泡立ち量 １６０ｍｌ以上２００ｍｌ未満
△；泡立ち量 １２０ｍｌ以上１６０ｍｌ未満
×；泡立ち量 １２０ｍｌ未満
【００３０】
（使用性）
各ペースト状洗浄剤組成物に関し、１０名の専門パネラーが洗顔試験を行い、下記基準により使用性を評価した。
【００３１】
（１）伸ばしやすさ
５；非常に伸ばしやすいペーストである
４；伸ばしやすいペーストである
３；普通のペーストである
２；やや伸ばしにくいペーストである
１；伸ばしにくいペーストである
【００３２】
これらの評価の平均値を算出し、以下の基準で測定した。
◎；平均値が４．５以上
○；平均値が３．５〜４．４
△；平均値が２．５〜３．４
×；平均値が２．４以下
【００３３】
（２）泡立てやすさ
５；非常に泡立てやすいペーストである
４；泡立てやすいペーストである
３；普通のペーストである
２；やや泡立てにくいペーストである
１；泡立てにくいペーストである
【００３４】
これらの評価の平均値を算出し、以下の基準で判定した。
◎；平均値が４．５以上
○；平均値が３．５〜４．４
△；平均値が２．５〜３．４
×；平均値が２．４以下
【００３５】
【表１】

【００３６】
【発明の効果】
本発明のペースト状洗浄剤組成物は、起泡性、洗浄後のさっぱり感に優れ、皮膚刺激性が低いだけでなく、高粘度でありながら伸ばしやすく、泡立てやすいものである。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a paste-like detergent composition, and in more detail, foaming properties, excellent refreshing feeling after washing, not only low skin irritation, but also easy to spread while high viscosity, easy to lather, The present invention relates to a good paste-like detergent composition.
[0002]
[Prior art]
Paste detergents are generally filled in tubes, etc., and have sufficient foaming power and detergency in small amounts, and are excellent in handling, portability, etc. ing. Many conventional paste-like detergent compositions mainly contain higher fatty acid salts. This is due to the excellent foaming power, easy rinsing and refreshing after use.
[0003]
However, the detergent containing the higher fatty acid salt as a main component has a drawback that it is highly irritating to the skin. In order to overcome such drawbacks, a detergent containing an amino acid surfactant as a main component, a detergent using a higher fatty acid salt and a phosphate ester surfactant in combination, and the like have been developed or proposed.
[0004]
However, the former has a drawback that the foaming power is weak. In the latter cleaning agent, if the amount of these components is increased to make the property into a paste, or if a thickening agent is added, stickiness will be caused. Therefore, there is a problem that it is difficult to stretch and foam. As a means for increasing the viscosity, powder may be blended, but in this case, there is a problem that the foaming power is reduced.
[0005]
[Problems to be solved by the invention]
Accordingly, it is an object of the present invention to provide a paste-like detergent composition which maintains a high-viscosity paste when not in use, and is easy to expand and lather when used, and has good foaming properties.
[0006]
[Means for Solving the Problems]
Under these circumstances, the present inventors have conducted intensive studies on the paste-like detergent composition, and as a result, the melting point of the paste-like detergent composition containing a phosphate ester surfactant and a higher fatty acid salt as main components has been found. By blending a solid fat of 50 ° C or higher, it has excellent foaming properties, excellent refreshing feeling after washing, low skin irritation, and easy to spread even with high viscosity and easy to lather. It has been found that a detergent-like composition can be obtained, and the present invention has been completed.
[0007]
That is, the present invention provides the following components (A), (B) and (C)
(A) The following general formula (1) or (2)
Embedded image

(Wherein, R ¹ , R ² and R ³ represent a saturated or unsaturated hydrocarbon group having 8 to 18 carbon atoms, and X ¹ , X ² and X ³ represent a hydrogen atom, an alkali metal atom, an alkaline earth metal, Atom, ammonium, alkanolamine)
A phosphate ester-based surfactant represented by 10 to 30% by weight ,
(B) higher fatty acid salt 10 to 30% by weight ,
(C) 8 to 10% by weight of ethylene glycol distearate having a melting point of 50 ° C. or higher
, A weight ratio of the component (A) to the component (B) is 85/15 to 15/85, and a viscosity of 100 to 10,000 P is provided.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Phosphoric acid ester surfactant of the component (A) used in the present invention are those represented by the general formula (1) or (2).
[0011]
In the above formulas (1) and (2), the saturated or unsaturated hydrocarbon group having 8 to 18 carbon atoms represented by R ¹ , R ² and R ³ is a straight-chain or branched-chain alkyl group or alkenyl group. preferable. Specifically, octyl group, nonyl group, decyl group, undecyl group, dodecyl group, tridecyl group, tetradecyl group, linear alkyl groups such as pentadecyl group and their branched alkyl groups, octenyl group, nonenyl group, decenyl group , Undecenyl group, dodecenyl group, tridecenyl group, tetradecenyl group, pentadecenyl group and other linear alkyl groups, and their branched alkenyl groups. As R ¹ , R ² and R ³ , those having 12 to 14 carbon atoms are preferable, and an alkyl group having 12 to 14 carbon atoms is particularly preferable. These alkyl groups and alkenyl groups may have a single chain length or a mixture of different chain lengths.
[0012]
X ¹ , X ² and X ³ include, for example, sodium, potassium, magnesium, calcium, monoethanolamine, diethanolamine, triethanolamine, arginine, lysine and the like, among which alkali metals and triethanolamine are more preferred.
[0013]
In the present invention, the phosphate ester-based surfactant of the component (A) is used singly or in a mixture at an arbitrary ratio as represented by the above (1) or (2). It is preferable that the compound of 1) and the compound of formula (2) are mixed at a weight ratio of 100: 0 to 50:50.
[0014]
Particularly preferred embodiments are, for example, sodium mono- or dilauryl phosphate, potassium mono- or dilauryl phosphate, diethanolamine mono- or dilauryl phosphate, triethanolamine mono- or dilauryl phosphate, sodium mono- or dimyristyl phosphate, mono- or di- Potassium myristyl phosphate, triethanolamine mono- or dimyristyl phosphate, sodium mono- or dioleyl phosphate, potassium mono- or dioleyl phosphate, potassium monopalmityl phosphate, triethanolamine monopalmityl phosphate, monostearyl phosphate Potassium and triethanolamine monostearyl phosphate;
[0015]
The phosphate ester surfactant of the component (A) is preferably incorporated in the paste cleaning composition of the present invention in an amount of 5 to 80% by weight (hereinafter simply referred to as%), more preferably 10 to 30%. .
[0016]
As the higher fatty acid salt of the component (B), for example, the following general formula (3)
R ⁴ -COOM (3)
(Wherein, R ⁴ represents a saturated or unsaturated hydrocarbon group having 7 to 17 carbon atoms, and M represents an alkali metal atom, ammonium or alkanolamine)
Are represented.
[0017]
The higher fatty acid salt may be prepared by neutralizing the higher fatty acid and the base in a compounding tank for producing a detergent composition. Further, even if a part of the higher fatty acid salt undergoes salt exchange with the hydrogen counter ion of the phosphate ester salt, the effect of the present invention is not hindered.
[0018]
The higher fatty acid salt of the component (B) can be used alone or as a mixture of two or more types. The compounding amount of the component (B) is such that the paste-like detergent composition of the present invention has good detergency, foaming property and appropriate viscosity. From the viewpoint of giving, the composition preferably has 5 to 80%, particularly preferably 10 to 30%.
[0019]
In the paste-form detergent composition of the present invention, the preferable blending amounts of the components (A) and (B) are as described above, and the blending ratio of the components (A) and (B) is 85 / wt. It is preferably 15 to 15/85 from the viewpoints of detergency, foaming power, foam feeling and skin irritation, and particularly preferably 60/40 to 40/60.
[0020]
Examples of the solid fat having a melting point of component (C) of 50 ° C. or more (refers to a solid oily component at normal temperature) include hydrocarbons, higher alcohols, higher fatty acids, higher fatty acid esters, and fatty acid alkanolamides. And animal and vegetable fats and oils, cholesterol fatty acid esters, and the like, and particularly preferred are solid paraffin, stearic acid, stearyl alcohol, ethylene glycol distearate, lauric acid ethanolamide, and hydrogenated coconut oil.
[0021]
The amount of the component (C) is preferably from 6 to 50%, more preferably from 8 to 20%, from the viewpoint of giving the foamed paste composition of the present invention good foaming properties and appropriate viscosity. preferable.
[0022]
In the present invention, the paste form has a viscosity of 100 to 10000 P (poise), and the detergent composition can be made into a paste form by adjusting the blending amount of the higher fatty acid salt of the component (B).
[0023]
As described above, the viscosity of the composition can be increased by increasing the amount of the component (B), and the tackiness (stickiness) of the composition can be improved without lowering the viscosity by the addition of the component (C). it can.
[0024]
The paste-like detergent composition of the present invention may further contain a pigment, a fragrance, a bactericide, an anti-inflammatory agent, a chelating agent, a foaming agent, a preservative, a wetting agent, other surfactants, etc., depending on the intended use. It can be blended within a range that does not impair the effects of the invention.
[0025]
The paste-like detergent composition of the present invention can be produced by a conventional method, and is preferably used for washing the skin, and is preferably used as a facial cleanser, particularly in a form filled in a tube.
[0026]
【Example】
Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited thereto.
[0027]
Example 1
A face wash having the composition shown in Table 1 was prepared according to a conventional method, and evaluated for foamability and usability. The results are shown in Table 1.
(Foaming)
A 10-fold diluted aqueous solution was prepared for each detergent composition, and 100 ml of this aqueous solution (liquid temperature: 40 ° C.) was injected into a cylinder with a scale. Next, a stirring blade was installed in the aqueous solution, the blade was rotated, and the volume (ml) of the foam generated 30 seconds after the start of stirring was measured to determine the foaming amount, which was evaluated according to the following criteria. The rotation speed of the stirring blade was 1,000 rpm, and was reversed every 5 seconds.
[0029]
◎: Foaming amount 200 ml or more ；; Foaming amount 160 ml or more and less than 200 ml △; Foaming amount 120 ml or more and less than 160 ml ×; Foaming amount less than 120 ml
(Usability)
For each of the paste-like cleaning compositions, a face-washing test was conducted by 10 specialized panelists, and the usability was evaluated according to the following criteria.
[0031]
(1) Ease of stretching 5; Paste that is very easy to stretch 4; Paste that is easy to stretch 3; Paste 2 that is ordinary paste; Paste 1 that is slightly difficult to spread; Paste that is difficult to stretch
The average of these evaluations was calculated and measured according to the following criteria.
◎: average value of 4.5 or more ；: average value of 3.5 to 4.4
Δ: average value of 2.5 to 3.4
×: average value of 2.4 or less
(2) Ease of whipping 5; Very easy to whipping paste 4; Easy to whipping paste 3; Normal paste 2; Slightly less whipping paste 1;
The average value of these evaluations was calculated and determined based on the following criteria.
◎: average value of 4.5 or more ；: average value of 3.5 to 4.4
Δ: average value of 2.5 to 3.4
×: average value of 2.4 or less
[Table 1]

[0036]
【The invention's effect】
The paste-like detergent composition of the present invention is not only excellent in foaming properties and refreshing feeling after washing, and has low skin irritation, but also has a high viscosity and is easy to spread and lather easily.

Claims (2)

The following components (A), (B) and (C)
(A) The following general formula (1) or (2)

(Wherein, R ¹ , R ² and R ³ represent a saturated or unsaturated hydrocarbon group having 8 to 18 carbon atoms, and X ¹ , X ² and X ³ represent a hydrogen atom, an alkali metal atom, an alkaline earth metal, Atom, ammonium, alkanolamine)
A phosphate ester-based surfactant represented by 10 to 30% by weight ,
(B) higher fatty acid salt 10 to 30% by weight ,
(C) 8 to 10% by weight of ethylene glycol distearate having a melting point of 50 ° C. or higher
And a weight ratio of the component (A) to the component (B) of 85/15 to 15/85 and a viscosity of 100 to 10,000 P. The paste-like cleaning composition according to claim 1, wherein the weight ratio of the component (A) to the component (B) is 70/30 to 47/53.