JP4287556B2 - Cleaning composition - Google Patents

Description

【０００７】
（式中、Ｒ¹ は炭素数７〜１９のアルキル基、ヒドロキシアルキル基又はアルケニル基を示し、Ｒ² は水素原子又は炭素数１〜３のアルキル基を示し、Ｍは水素原子、アルカリ金属、アルカリ土類金属、アンモニウム又はアルカノールアンモニウムを示す）
で表わされるアシルタウリン系界面活性剤、及び
（Ｂ）炭素数４〜１２のアルキル基又はアルケニル基を有するグリセリルエーテル
を含有する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】
本発明で用いる成分（Ａ）のアシルタウリン系界面活性剤は、前記一般式（１）で表わされるものであり、式中、Ｒ¹ としては炭素数９〜１７のアルキル基が好ましく、炭素数９〜１３のアルキル基が特に好ましい。Ｒ² としては、メチル基、エチル基、ｎ−プロピル基、イソプロピル基等が挙げられ、特にメチル基が好ましい。
また、Ｍとしては、水素原子；ナトリウム、カリウム等のアルカリ金属；カルシウム、マグネシウム等のアルカリ土類金属；アンモニウム；トリエタノールアミン等のアルカノールアンモニウムなどが挙げられ、特にアルカリ金属、水素原子、更にナトリウムが好ましい。
【０００９】
成分（Ａ）の好ましい具体例としては、Ｎ−ラウロイル−Ｎ−メチルタウリン、Ｎ−ココイル−Ｎ−メチルタウリン、Ｎ−ミリストイル−Ｎ−メチルタウリン及びこれらのアルカリ金属塩等が挙げられる。
【００１０】
成分（Ａ）は、１種以上を用いることができ、全組成中に１〜５０重量％、特に２〜３０重量％、更に３〜２０重量％配合するのが好ましい。
【００１１】
成分（Ｂ）のグリセリルエーテルは、炭素数４〜１２の直鎖又は分岐鎖のアルキル基又はアルケニル基を有するもので、例えばｎ−ブチル基、イソブチル基、ｔｅｒｔ−ブチル基、ｎ−ペンチル基、イソペンチル基、ｎ−ヘキシル基、イソヘキシル基、ｎ−ヘプチル基、ｎ−オクチル基、２−エチルヘキシル基、ｎ−ノニル基、ｎ−デシル基、ｎ−ラウリル基等の炭素数４〜１２のアルキル基を有するものが好ましく、特に炭素数４〜１１、更に炭素数６〜１０、就中炭素数８のアルキル基を１又は２個、特に１個有するのが好ましい。
【００１２】
成分（Ｂ）のグリセリルエーテルは、１種以上を用いることができ、全組成中に０．１〜３０重量％、特に０．５〜１５重量％、更に１〜１０重量％配合するのが好ましい。
また、成分（Ａ）と成分（Ｂ）の配合重量比は、（Ａ）：（Ｂ）＝９９：１〜３０：７０、特に９５：５〜５０：５０、更に９０：１０〜６０：４０であるのが好ましい。
【００１３】
本発明の洗浄剤組成物には、更に通常の洗浄剤組成物に用いられる成分、例えばプロピレングリコール、グリセリン、ジエチレングリコールモノエチルエーテル、ソルビトール、パンテノール等の保湿剤；カチオン性ポリマー、シリコーン化合物及びその誘導体等のコンディショニング成分；エチレングリコールステアリン酸エステル等のパール化剤；ポリオキシエチレンアルキルエーテル、アルキルポリグリコシド等のノニオン性界面活性剤；アルキルプロピルベタイン等の両性界面活性剤；成分（Ａ）以外のアニオン性界面活性剤；セチルトリメチルアンモニウム塩等のカチオン性界面活性剤；染料、顔料等の着色剤；メチルセルロース、ポリエチレングリコール、エタノール等の粘度調整剤；クエン酸、水酸化カリウム等のpH調整剤；塩化ナトリウム等の塩類、植物エキス類、防腐剤、殺菌剤、キレート剤、ビタミン剤、抗炎症剤、抗フケ剤、香料、色素、紫外線吸収剤、酸化防止剤、水などを、適宜配合できる。
【００１４】
本発明の洗浄剤組成物は、常法に従って製造でき、例えばシャンプー、全身洗浄料、洗顔料、手洗い剤等の身体用洗浄剤などの洗浄剤組成物に適用できる。
【００１５】
【発明の効果】
本発明の洗浄剤組成物は、肌に対して低刺激であり、良好な泡立ちで、しかもすすぎ後のしっとり感及び低温安定性に優れたものである。
【００１６】
【実施例】
実施例１
表１に示す組成の洗浄剤組成物を常法により製造し、起泡力、すすぎ後のしっとり感、刺激性及び低温安定性について評価した。結果を表１に併せて示す。
【００１７】
（評価方法）
（１）起泡力及びすすぎ後のしっとり感：
専門パネラー１０名により、各洗浄剤組成物１mLを手のひらにとり、水道水で手洗いを行った。このときの泡立ち及びすすぎ後のしっとり感を、以下の基準で評価した。
○；７名以上が良好と評価した。
△；５〜６名が良好と評価した。
×；４名が以下が良好と評価した。
【００１８】
（２）刺激性：
各洗浄剤組成物の５倍希釈水溶液を調整し、この水溶液１０mLを、１０名の専門パネラーの前腕に設置した直径３．５cmのガラスカップにとり、１日３０分間皮膚と接触させた。これを３日間連続して行った後、皮膚の状態を以下の基準で評価した。
○；落せつが認められるのは５名以下。
△；落せつが認められるのは６名以上であるが、紅斑は認められない。
×；６名以上に落せつ及び紅斑が認められる。
【００１９】
（３）低温安定性：
各洗浄剤組成物を−５℃で１週間保存した後の状態について、目視により、以下の基準で評価した。
○；固化せず、保存前の状態と変わらない。
△；かなり粘度は上がるが固化しない。
×；固化している。
【００２０】
【表１】

【００２１】
実施例２
以下に示す組成のシャンプーを常法により製造した。
得られたシャンプーは、肌に対して低刺激で、良好な泡立ちを有し、すすぎ後のしっとり感及び低温安定性に優れたものであった。

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a detergent composition that is mild to the skin, has good foaming, and has a moist feeling after rinsing and excellent low-temperature stability.
[0002]
[Prior art]
Acyl taurine surfactants are known as low-stimulant active agents for the skin, but because of their poor foaming properties, when used in cleaning compositions, sulfate-type surfactants and betaine-type surfactants. It was necessary to use a surfactant, fatty acid soap and the like together. If the amount of the surfactant used in combination is increased, the foaming property is improved, but the inherent low irritation characteristic of the acyltaurine surfactant is not utilized. In addition, acyltaurine surfactants have a problem of poor low temperature stability.
[0003]
[Problems to be solved by the invention]
An object of the present invention is to provide a cleaning composition that is less irritating to the skin, has good foaming, and has excellent low-temperature stability.
[0004]
[Means for Solving the Problems]
When the present inventors use a specific acyltaurine surfactant and a specific glyceryl ether in combination, they are less irritating to the skin, good foaming, moist feeling after rinsing and low temperature stability. It has been found that an excellent cleaning composition can be obtained.
[0005]
The present invention relates to (A) the general formula (1)
[0006]
[Chemical formula 2]

[0007]
(In the formula, R ¹ represents an alkyl group having 7 to 19 carbon atoms, a hydroxyalkyl group or an alkenyl group, R ² represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, M represents a hydrogen atom, an alkali metal, Indicates alkaline earth metal, ammonium or alkanol ammonium)
And (B) a glyceryl ether having an alkyl group or an alkenyl group having 4 to 12 carbon atoms, and a detergent composition.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
The acyltaurine surfactant of component (A) used in the present invention is represented by the general formula (1), and in the formula, R ¹ is preferably an alkyl group having 9 to 17 carbon atoms, 9 to 13 alkyl groups are particularly preferred. Examples of R ² include a methyl group, an ethyl group, an n-propyl group, and an isopropyl group, and a methyl group is particularly preferable.
Examples of M include hydrogen atoms; alkali metals such as sodium and potassium; alkaline earth metals such as calcium and magnesium; ammonium; alkanol ammoniums such as triethanolamine, and the like. In particular, alkali metals, hydrogen atoms, and sodium Is preferred.
[0009]
Preferable specific examples of component (A) include N-lauroyl-N-methyltaurine, N-cocoyl-N-methyltaurine, N-myristoyl-N-methyltaurine, and alkali metal salts thereof.
[0010]
One or more types of component (A) can be used, and it is preferable to blend 1 to 50% by weight, particularly 2 to 30% by weight, and more preferably 3 to 20% by weight in the total composition.
[0011]
The glyceryl ether of component (B) has a linear or branched alkyl group or alkenyl group having 4 to 12 carbon atoms, such as an n-butyl group, an isobutyl group, a tert-butyl group, an n-pentyl group, C4-C12 alkyl groups such as isopentyl group, n-hexyl group, isohexyl group, n-heptyl group, n-octyl group, 2-ethylhexyl group, n-nonyl group, n-decyl group, n-lauryl group In particular, it is preferable to have 1 or 2 alkyl groups having 4 to 11 carbon atoms, more preferably 6 to 10 carbon atoms, and especially 8 carbon atoms.
[0012]
One or more glyceryl ethers of component (B) can be used, and 0.1 to 30% by weight, particularly 0.5 to 15% by weight, and more preferably 1 to 10% by weight are incorporated in the total composition. .
The blending weight ratio of the component (A) to the component (B) is (A) :( B) = 99: 1 to 30:70, particularly 95: 5 to 50:50, more preferably 90:10 to 60:40. Is preferred.
[0013]
The cleaning composition of the present invention further contains components used in ordinary cleaning compositions, such as humectants such as propylene glycol, glycerin, diethylene glycol monoethyl ether, sorbitol, panthenol; cationic polymers, silicone compounds and the like Conditioning components such as derivatives; Pearling agents such as ethylene glycol stearates; Nonionic surfactants such as polyoxyethylene alkyl ethers and alkyl polyglycosides; Amphoteric surfactants such as alkylpropyl betaines; Other than component (A) Anionic surfactants; cationic surfactants such as cetyltrimethylammonium salt; colorants such as dyes and pigments; viscosity modifiers such as methylcellulose, polyethylene glycol and ethanol; pH adjusters such as citric acid and potassium hydroxide; Salts such as sodium reduction, plant extracts, preservatives, disinfectants, chelating agents, vitamins, anti-inflammatory agents, anti-dandruff agents, fragrances, dyes, ultraviolet absorbers, antioxidants, water and the like, can be suitably blended.
[0014]
The cleaning composition of the present invention can be produced according to a conventional method, and can be applied to cleaning compositions such as shampoos, whole body cleaning agents, facial cleansers, hand cleaning agents and other body cleaning agents.
[0015]
【The invention's effect】
The cleaning composition of the present invention has low irritation to the skin, good foaming, and excellent moist feeling after rinsing and low-temperature stability.
[0016]
【Example】
Example 1
A cleaning composition having the composition shown in Table 1 was produced by a conventional method and evaluated for foaming power, moist feeling after rinsing, irritation and low-temperature stability. The results are also shown in Table 1.
[0017]
(Evaluation methods)
(1) Foaming power and moist feeling after rinsing:
Ten professional panelists took 1 mL of each cleaning composition on the palm and hand-washed it with tap water. The foaming at this time and the moist feeling after rinsing were evaluated according to the following criteria.
○: Seven or more people evaluated it as good.
(Triangle | delta); 5-6 persons evaluated it as favorable.
X: Four people evaluated the following as good.
[0018]
(2) Irritation:
A 5-fold diluted aqueous solution of each cleaning composition was prepared, and 10 mL of this aqueous solution was placed in a glass cup having a diameter of 3.5 cm placed on the forearms of 10 professional panelists and contacted with the skin for 30 minutes a day. After performing this continuously for 3 days, the skin condition was evaluated according to the following criteria.
○: No more than 5 people are allowed to drop.
Δ: Dropping is recognized by 6 or more people, but no erythema is observed.
X: Dropping and erythema are observed in 6 or more people.
[0019]
(3) Low temperature stability:
The state after each cleaning composition was stored at −5 ° C. for 1 week was visually evaluated according to the following criteria.
○: It does not solidify and does not change from the state before storage.
Δ: Viscosity increases considerably but does not solidify.
X: Solidified.
[0020]
[Table 1]

[0021]
Example 2
A shampoo having the composition shown below was produced by a conventional method.
The obtained shampoo was mild to the skin, had good foaming, and was excellent in moist feeling after rinsing and low-temperature stability.

Claims (1)

(A) General formula (1)

(In the formula, R ¹ represents an alkyl group having 7 to 19 carbon atoms, a hydroxyalkyl group or an alkenyl group, R ² represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, M represents a hydrogen atom, an alkali metal, 2 to 30% by weight of an acyltaurine surfactant represented by an alkaline earth metal, ammonium or alkanolammonium) and (B) 0.5 to 15 % by weight of a monoglyceryl ether having an alkyl group having 8 carbon atoms % , And the blending weight ratio of the component (A) to the component (B) is (A) :( B) = 95: 5 to 50:50 .