JP4237359B2 - Cleaning composition - Google Patents

Cleaning composition Download PDF

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Publication number
JP4237359B2
JP4237359B2 JP28987999A JP28987999A JP4237359B2 JP 4237359 B2 JP4237359 B2 JP 4237359B2 JP 28987999 A JP28987999 A JP 28987999A JP 28987999 A JP28987999 A JP 28987999A JP 4237359 B2 JP4237359 B2 JP 4237359B2
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Japan
Prior art keywords
group
skin
alkyl
cleaning composition
composition
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 - Lifetime
Application number
JP28987999A
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Japanese (ja)
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JP2001107097A (en
Inventor
健一 春日
哲也 宮島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
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Filing date
Publication date
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Publication of JP2001107097A publication Critical patent/JP2001107097A/en
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Description

【0001】
【発明の属する技術分野】
本発明は、起泡性及び洗浄力に優れ、肌に対して低刺激である洗浄剤組成物に関する。
【0002】
【従来の技術】
シャンプー、全身洗浄料等の皮膚に直接接する洗浄剤組成物は、洗浄力、泡性能、使用感に加え、肌に低刺激であることも求められている。一般に洗浄成分としてアニオン性界面活性剤が用いられると、シャンプー時に目にしみたり、長期に使用すると敏感肌の人では手や肌が荒れやすくなる場合がある。またこれらの界面活性剤は、洗浄性能、泡性能の高さから中性〜アルカリ性で用いられることが多く、肌のpHである弱酸性と異なるため、肌荒れの原因になることもある。
【0003】
【発明が解決しようとする課題】
本発明の目的は、起泡性に優れ、肌に対して低刺激である洗浄剤組成物を提供することにある。
【0004】
【課題を解決するための手段】
本発明者らは、アニオン性界面活性剤と特定のグリセリルエーテルを組合わせた弱酸性の洗浄剤組成物が、優れた起泡性を損うことなく、肌に対して低刺激であることを見出した。
【0005】
本発明は、(A)アニオン性界面活性剤、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
を含有し、20倍希釈水溶液のpHが4.0〜6.5である洗浄剤組成物を提供するものである。
【0006】
【発明の実施の形態】
本発明で用いる成分(A)のアニオン性界面活性剤としては、通常の洗浄剤組成物に用いられるものであれば制限されず、例えばアルキル硫酸塩、アルキルベンゼンスルホン酸塩、ポリオキシアルキレンアルキルエーテル硫酸塩、ポリオキシアルキレンアルケニルエーテル硫酸塩、スルホコハク酸アルキルエステル塩、ポリオキシアルキレンスルホコハク酸アルキルエステル塩、α−オレフィンスルホン酸塩、ポリオキシアルキレンアルキルフェニルエーテル硫酸塩、グリセライド硫酸塩、アミドエーテル硫酸塩、脂肪酸塩、アルカンスルホン酸塩、α−スルホ脂肪酸エステル塩等が挙げられる。
【0007】
これらのうち、アルキル硫酸塩、ポリオキシアルキレンアルキルエーテル硫酸塩が好ましく、特に一般式(1)又は(2)で表わされるものが好ましい。
【0008】
【化1】
R1OSO3M (1)
R2O(CH2CH2O)mSO3M (2)
【0009】
(式中、R1 及びR2 は炭素数10〜18のアルキル基を示し、Mはアルカリ金属、アルカリ土類金属、アンモニウム、アルカノールアミン又は塩基性アミノ酸を示し、mは1〜5の数を示す)
【0010】
成分(A)のアニオン性界面活性剤は、1種以上を用いることができ、全組成中に5〜50重量%、特に8〜30重量%、更に10〜22重量%配合するのが、起泡性の点で好ましい。
【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、起泡性の点で好ましい。
【0013】
本発明の洗浄剤組成物は、水を媒体とする水性液状とするのが好ましく、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ジ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、アルキルポリグルコシド等のノニオン性界面活性剤;アミドプロピルベタイン等の両性界面活性剤;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、20倍希釈水溶液のpHが4.0〜6.5、好ましくはpH5.0〜6.2となるように調整される。pH4.0未満では泡立ちが悪く、pH6.5を超えると肌への刺激が強くなる。
なお、pHの調整は、20倍希釈水溶液がpH4.0〜6.5にすることができる酸性物質、例えばクエン酸、乳酸等の有機酸や無機酸などを用いて常法により行うことができる。
【0015】
本発明の洗浄剤組成物は、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とすることができる。
【0016】
【発明の効果】
本発明の洗浄剤組成物は、起泡性及び洗浄力に優れ、しかも肌に対して低刺激である。
【0017】
【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、起泡性及び刺激性を評価した。結果を表1に併せて示す。
【0018】
(評価方法)
(1)起泡性;
洗浄剤組成物の20倍希釈水溶液を調製し、この溶液100mL(液温40℃)を、1000mLのメスシリンダーに注入する。次いでこの溶液中に、直径5cmの4枚攪拌羽根を設置し、1000r/min で30秒間攪拌した後に生じた泡の体積(mL)を測定して泡立ち量とし、以下の基準で評価した。なお、攪拌羽根は5秒毎に反転させた。
◎;泡立ち量200mL以上。
○;泡立ち量150mL以上200mL未満。
△;泡立ち量150mL未満。
【0019】
(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。
【0020】
【表1】

Figure 0004237359
【0021】
実施例2
以下に示す組成の身体洗浄料を常法により製造した。
得られた身体洗浄料は、起泡力及び洗浄力に優れ、刺激性の低いものであった。
【表2】
(成分) (重量%)
ポリオキシエチレン(3)ラウリルエーテル硫酸ナトリウム液
(25%) 60
ラウリルジメチルヒドロキシスルホベタイン 3
ラウリン酸ナトリウム塩 1
n−オクチルグリセリルエーテル 2
グリセリン 5
エタノール 1
香料 0.5
クエン酸水溶液(pH6に調整) 適量
精製水 バランス[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a detergent composition that is excellent in foaming properties and detergency and is mild to skin.
[0002]
[Prior art]
Detergent compositions that come into direct contact with the skin, such as shampoos and whole body cleansers, are also required to have low irritation to the skin in addition to detergency, foam performance, and feeling of use. In general, when an anionic surfactant is used as a cleaning component, it may be squeezed during shampooing, or if used for a long time, the hands and skin may be roughened. In addition, these surfactants are often used in neutral to alkaline conditions due to their high cleaning performance and foam performance, and are different from weak acidity, which is the pH of the skin, and may cause rough skin.
[0003]
[Problems to be solved by the invention]
The objective of this invention is providing the cleaning composition which is excellent in foaming property and is low irritation | stimulation with respect to skin.
[0004]
[Means for Solving the Problems]
The present inventors have found that a weakly acidic detergent composition comprising a combination of an anionic surfactant and a specific glyceryl ether is less irritating to the skin without impairing excellent foaming properties. I found it.
[0005]
The present invention contains (A) an anionic surfactant and (B) glyceryl ether having an alkyl group or alkenyl group having 4 to 12 carbon atoms, and the pH of a 20-fold diluted aqueous solution is 4.0 to 6.5. A cleaning composition is provided.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The anionic surfactant of the component (A) used in the present invention is not limited as long as it is used in an ordinary detergent composition. For example, alkyl sulfate, alkyl benzene sulfonate, polyoxyalkylene alkyl ether sulfate Salt, polyoxyalkylene alkenyl ether sulfate, sulfosuccinic acid alkyl ester salt, polyoxyalkylene sulfosuccinic acid alkyl ester salt, α-olefin sulfonate, polyoxyalkylene alkyl phenyl ether sulfate, glyceride sulfate, amide ether sulfate, Examples include fatty acid salts, alkane sulfonates, and α-sulfo fatty acid ester salts.
[0007]
Of these, alkyl sulfates and polyoxyalkylene alkyl ether sulfates are preferred, and those represented by general formula (1) or (2) are particularly preferred.
[0008]
[Chemical 1]
R 1 OSO 3 M (1)
R 2 O (CH 2 CH 2 O) m SO 3 M (2)
[0009]
(Wherein R 1 and R 2 represent an alkyl group having 10 to 18 carbon atoms, M represents an alkali metal, alkaline earth metal, ammonium, alkanolamine or basic amino acid, and m represents a number of 1 to 5) Show)
[0010]
One or more anionic surfactants of the component (A) can be used, and it is preferable that 5 to 50% by weight, particularly 8 to 30% by weight, and further 10 to 22% by weight is incorporated in the total composition. It is preferable in terms of foamability.
[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 the component (B) can be used, and 0.1 to 30% by weight, particularly 0.5 to 15% by weight, and further 1 to 10% by weight are incorporated in the total composition. It is preferable in terms of foamability.
[0013]
The cleaning composition of the present invention is preferably in the form of an aqueous liquid with water as a medium, and further components used in ordinary cleaning compositions such as propylene glycol, glycerin, diethylene glycol monoethyl ether, sorbitol, panthenol and the like Moisturizing agents; conditioning components such as cationic polymers, silicone compounds and derivatives thereof; pearling agents such as ethylene glycol distearate; nonionic surfactants such as polyoxyethylene alkyl ether and alkyl polyglucoside; amidopropyl betaine Amphoteric surfactants; cationic surfactants such as cetyltrimethylammonium salts; 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 chloride, 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 detergent composition of the present invention can be produced according to a conventional method, and is adjusted so that the pH of the 20-fold diluted aqueous solution is 4.0 to 6.5, preferably pH 5.0 to 6.2. When the pH is less than 4.0, foaming is poor, and when the pH exceeds 6.5, irritation to the skin becomes strong.
The pH can be adjusted by a conventional method using an acidic substance whose 20-fold diluted aqueous solution can be adjusted to pH 4.0 to 6.5, for example, an organic acid such as citric acid or lactic acid, or an inorganic acid. .
[0015]
The cleaning composition of the present invention can be used as body cleaning agents such as shampoos, whole body cleaning agents, facial cleansers, hand cleaning agents and the like.
[0016]
【The invention's effect】
The cleaning composition of the present invention is excellent in foaming properties and detergency, and is less irritating to the skin.
[0017]
【Example】
Example 1
A detergent composition having the composition shown in Table 1 was produced by a conventional method, and the foamability and irritation were evaluated. The results are also shown in Table 1.
[0018]
(Evaluation methods)
(1) foaming property;
A 20-fold diluted aqueous solution of the cleaning composition is prepared, and 100 mL of this solution (liquid temperature 40 ° C.) is injected into a 1000 mL graduated cylinder. Next, four stirring blades having a diameter of 5 cm were placed in this solution, and the volume (mL) of foam generated after stirring for 30 seconds at 1000 r / min was measured as the amount of foaming, and evaluated according to the following criteria. The stirring blade was inverted every 5 seconds.
A: Foaming amount is 200 mL or more.
○: Foaming amount 150 mL or more and less than 200 mL.
Δ: Foaming amount is less than 150 mL.
[0019]
(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.
[0020]
[Table 1]
Figure 0004237359
[0021]
Example 2
A body cleansing composition having the following composition was produced by a conventional method.
The obtained body cleansing material was excellent in foaming power and cleaning power and low in irritation.
[Table 2]
(Ingredient) (wt%)
Polyoxyethylene (3) sodium lauryl ether sulfate solution (25%) 60
Lauryldimethylhydroxysulfobetaine 3
Lauric acid sodium salt 1
n-octyl glyceryl ether 2
Glycerin 5
Ethanol 1
Fragrance 0.5
Citric acid aqueous solution (adjusted to pH 6) Appropriate amount of purified water Balance

Claims (1)

(A)アニオン性界面活性剤:5〜30重量%、及び
(B)炭素数〜10のアルキル基又はアルケニル基を1個有するグリセリルエーテル:1〜10重量%
を含有し、20倍希釈水溶液のpHが4.0〜6.5である身体用洗浄剤
(A) an anionic surfactant: 5 to 30 wt%, and (B) glyceryl ether is also A alkyl group having 8-10 carbon atoms having one A alkenyl group: 1 to 10 wt%
Contain, pH of 20-fold diluted aqueous solution is a body cleanser is 4.0 to 6.5.
JP28987999A 1999-10-12 1999-10-12 Cleaning composition Expired - Lifetime JP4237359B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP28987999A JP4237359B2 (en) 1999-10-12 1999-10-12 Cleaning composition

Publications (2)

Publication Number Publication Date
JP2001107097A JP2001107097A (en) 2001-04-17
JP4237359B2 true JP4237359B2 (en) 2009-03-11

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Country Status (1)

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5048946B2 (en) * 2005-12-28 2012-10-17 花王株式会社 Aqueous cleaning composition
JP5048947B2 (en) * 2005-12-28 2012-10-17 花王株式会社 Aqueous cleaning composition
CN101077331A (en) * 2006-05-22 2007-11-28 花王株式会社 Aqueous hair cleansing agent
JP4963601B2 (en) * 2006-12-15 2012-06-27 花王株式会社 Skin cleanser
EP2705834B1 (en) 2011-05-02 2019-07-03 Kao Corporation Cleaning agent composition
CN111971021A (en) * 2018-04-18 2020-11-20 株式会社资生堂 Detergent composition
WO2019203040A1 (en) * 2018-04-18 2019-10-24 株式会社 資生堂 Cleanser composition

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