JP2008031118A - Cleansing agent composition for makeup cleansing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleansing agent composition for makeup cleansing having good preservation stability, excellent cleansing power for makeup stains and an excellent feeling of use. <P>SOLUTION: The cleansing agent composition for makeup cleansing comprises a nonionic surfactant represented by general formula (1): R<SP>1</SP>O-EO<SB>x</SB>-AO<SB>y</SB>-EO<SB>z</SB>-R<SP>2</SP>(wherein, R<SP>1</SP>is an 8-22C straight-chain or branched chain saturated or unsaturated fatty acid residue; R<SP>2</SP>is a 1-4C straight-chain or branched chain short chain alkyl group; EO is an ethylene oxide unit; AO is a ≥3C alkylene oxide unit; x is an integer of ≥1; y is an integer of 2-10; and z is an integer of ≥1). <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a cleansing composition for makeup cleansing that has good storage stability, excellent cleaning power against makeup stains, and excellent usability.

Makeup cleansing detergents are used to effectively remove makeup cosmetics that are difficult to remove with soap and other aqueous detergents, and have the effect of dissolving and dispersing oily stains and removing them by wiping or washing away.

The makeup cleansing detergent generally called solvent type has forms such as cleansing cream, cleansing milk, cleansing lotion, cleansing gel, cleansing oil, and the like, and they are properly used depending on their respective usability.

In recent years, preparations for preventing makeup collapse due to water and sweat have been developed, and in order to remove such difficult makeup, there is a need for a makeup cleansing detergent having a high detergency.

Furthermore, since such preparations may be stored at both high temperatures (above 40 ° C) and low temperatures (below 0 ° C), they have high storage stability so as not to impair commercial value such as separation and cloudiness. There is also a need for formulations.

In general, cleansing cosmetics containing a large amount of oil have a high cleansing effect against makeup and stains that are difficult to remove, but stickiness and nulliness are generated during washing, and an oily feeling remains after washing. In addition, there is a drawback that storage stability is poor.

Although the oily feeling can be reduced to some extent by reducing the oil content, it is impossible to exhibit the high cleansing effect against makeup and stains that are difficult to remove, which is a characteristic of cleansing cosmetics containing a large amount of oil. On the other hand, by adding an anionic active agent, the oily feeling is reduced and the cleansing effect is enhanced, but there are concerns about problems in terms of skin safety.

In addition, although these oils have improved oily feeling, they cannot be said to be sufficient, and storage stability is not sufficient, resulting in a smoky appearance due to temperature or precipitation, resulting in commercial value. And there was a problem that would impair usability.

On the other hand, as in Patent Document 1 and Patent Document 2, various attempts have been made to reduce oiliness and improve storage stability. Patent Document 1 discloses a non-aqueous cleansing agent containing a nonionic surfactant having an HLB of 5 to 15 and a liquid oil as essential components. However, although the oily feeling is improved, the storage stability is improved. Is not enough. Patent Document 2 discloses a cleansing cosmetic comprising a nonionic surfactant of HLB7-14, water, and oil that is liquid at room temperature, but although the storage stability has been improved to some extent, it is still insufficient I can not say.

Among them, Patent Document 3 is characterized by containing a polyoxyalkylene alkyl ether and a surfactant as a detergent composition having high detergency against oily soil, good low-temperature stability and excellent usability. Hair or skin cleaning composition is disclosed, has a high detergency to makeup stains, etc., has good low-temperature stability and excellent usability, but is improved in feel There was room for improvement in storage stability in cold regions.

JP-A 62-108806 Japanese Patent Laid-Open No. 3-161428 JP-A-11-148091

The present invention is a cleansing composition for makeup cleansing that has an excellent detergency against makeup stains and is also excellent in usability, and is a cleanser for makeup cleansing that has excellent storage stability in a wider temperature range than conventional ones. It is an object to provide an agent composition.

Under such circumstances, the present inventors have conducted extensive research to solve the above problems, and as a result, a makeup cleansing composition comprising a specific nonionic surfactant is more than conventional. The present inventors have found that the storage stability in a cold region is particularly good, that they are excellent in detergency against oily soil, sebum soil, and the like, and that they have excellent usability, and thus completed the present invention.

That is, the present invention is a makeup cleansing composition comprising a nonionic surfactant represented by the following general formula (1).
_{^{R 1 O- (EO) x -}} (AO) y - (EO) z -R 2 (1)
R ¹ : linear or branched saturated or unsaturated fatty acid residue having 8 to 22 carbon atoms R ² : linear or branched short chain alkyl group having 1 to 4 carbon atoms EO: ethylene oxide unit AO: Alkylene oxide unit having 3 or more carbon atoms x: integer of 1 or more y: integer of 2 to 10 z: integer of 1 or more

  As a preferred embodiment of the present invention, there is a makeup cleansing composition wherein the nonionic surfactant is liquid at room temperature.

Another preferred embodiment of the present invention is a makeup cleansing composition wherein the fatty acid residue of the nonionic surfactant is derived from isostearic acid or oleic acid.

Furthermore, as another preferred embodiment of the present invention, there is provided the above-mentioned cleansing composition for makeup cleansing, comprising one or more liquid oils at normal temperature selected from hydrocarbon oils, ester oils, silicone oils and vegetable oils. .

  The cleansing composition for makeup cleansing characterized by containing the specific nonionic surfactant of the present invention has good storage stability in a wider temperature range than conventional ones, and is suitable for oily dirt, sebum dirt, etc. A cleaning composition having excellent detergency and excellent usability can be provided.

The specific nonionic surfactant used in the present invention is represented by the general formula (1), and R ¹ is a residue of a linear or branched saturated or unsaturated fatty acid having 8 to 24 carbon atoms. It is a group. For example, linear saturated fatty acids include octanoic acid, decenoic acid, lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, etc., and linear unsaturated fatty acids include oleic acid, linoleic acid, Examples include linolenic acid. Examples of branched saturated fatty acids include octylic acid, 3,5,5-trimethylhexanoic acid isoheptanoic acid, isomyristic acid, isopalmitic acid, isostearic acid, isoarachin, and the like. Examples thereof include dimethyl-2-heptadecenoic acid, and among these, isostearic acid and oleic acid are particularly preferable in terms of storage stability at low temperatures and handling properties.

Further, in the general formula (1), R ² is a linear or branched alkyl group having 1 to 4 carbon atoms, and preferably 1 carbon atom from the point of touch during use. If the number of carbon atoms exceeds 4, stickiness and nulliness will occur during washing, and an oily feeling will remain after washing, resulting in a poor feel.

Furthermore, in General Formula (1), x and z which are EO addition mole numbers are an integer greater than or equal to 1, Preferably x is an integer of 3-9, z is an integer of 1-5. When x and z are 0, there is no problem in the compatibility with the oil and storage stability, but the oily feeling remains and the touch becomes poor. Y which is the PO addition mole number is an integer of 2 to 10, and preferably an integer of 4 to 6. When y is less than 2, the compatibility with the oil is deteriorated, and the storage stability is problematic. If y exceeds 10, the compatibility with oil and storage stability are improved, but the oily feeling remains and the feel becomes poor.

  This nonionic surfactant is a polyoxyalkylene alkyl ether produced by block addition of ethylene oxide, propylene oxide and ethylene oxide in the order of an alkali catalyst to a short-chain alcohol in the usual manner, and a fatty acid at 120 to 230 ° C. And can be produced by a general method such as dehydration reaction in the presence of an acid or alkali catalyst.

A more excellent makeup cleansing effect can be obtained by blending the cleansing composition for makeup cleansing of the present invention with one or more liquid oils at normal temperature selected from hydrocarbon oil, ester oil, silicone oil and vegetable oil. Examples of hydrocarbon oils include liquid paraffin, squalane, petrolatum, and microcrystalline wax.Examples of ester oils include cetyl 2-ethylhexanoate, isopropyl palmitate, octyldodecyl myristate, isopropyl myristate, isodecyl isononanoate, tri- Glyceryl 2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, etc. are silicon oils such as dimethylpolysiloxane, polymethylcyclosiloxane, polyether-modified methylpolysiloxane, amino acid-modified dimethylpolysiloxane, etc. Examples include olive oil, safflower oil, camellia oil and the like, but are not limited thereto.

Moreover, other components can be mix | blended according to the necessity of the use to such an extent that the effect of this invention is not impaired.

The form of the cleansing composition for makeup cleansing can be any form such as cream, milk, lotion, gel or oil, and can be produced by conventional formulation techniques.

  The present invention will be described below in more detail based on examples, but the present invention is not limited thereto. Unless otherwise specified, the amount is expressed in mass%.

(Production of nonionic surfactant of general formula (1))
[Example 1]
(Production of POE (5) POP (5) POE (3) methyl ether isostearate)
950 g of Hymor TM (manufactured by Toho Chemical Co., Ltd., polyoxyethylene (3) methyl ether) and 7.8 g of KOH were charged into a 5 L autoclave and sufficiently purged with nitrogen, and then alcoholated at 100 to 110 ° C. under reduced pressure. After that, the temperature was raised to 120 to 130 ° C., and 1683 g of propylene oxide was added dropwise over 4 hours in a sealed state, and aging was carried out until there was no pressure change. Subsequently, the temperature was raised to 160 to 170 ° C., and 1274 g of ethylene oxide was added dropwise over 2 hours, followed by aging until the pressure change disappeared. After cooling to 60 ° C. or lower, the catalyst was neutralized with a 10% oxalic acid aqueous solution and then dehydrated under reduced pressure to obtain POE (5) POP (5) POP (3) methyl ether. 3500 g of this content, 1430 g of isostearic acid, and 12 g of potassium carbonate were charged in a 5 L flask and sufficiently purged with nitrogen, then heated to 200-210 ° C. and aged for 10 hours. After cooling to 30 ° C., the catalyst was neutralized with a 10% oxalic acid aqueous solution and then dehydrated under reduced pressure to obtain POE (5) POP (5) POE (3) methyl ether isostearate. This was designated as sample number 1.

[Example 2]
(Production of POE (5) POP (5) POE (3) methyl ether oleate)
POE (5) POP (5) POP (3) methyl ether was obtained in the same manner as in Example 1. After 3500 g of this content, 1390 g of oleic acid, and 12 g of potassium carbonate were charged into a 5 L flask and sufficiently purged with nitrogen, the temperature was raised to 200 to 210 ° C. and aged for 10 hours. After cooling to 30 ° C., the catalyst was neutralized with a 10% oxalic acid aqueous solution and then dehydrated under reduced pressure to obtain POE (5) POP (5) POE (3) methyl ether oleate. This was designated as sample number 2.

[Example 3]
(Production of POE (9) POP (8) POE (3) methyl ether isostearate)
High Mall TM in 5L autoclave
After 700 g and 8.7 g of KOH were charged and sufficiently purged with nitrogen, alcoholate was performed at 100 to 110 ° C. under reduced pressure, and then the temperature was raised to 120 to 130 ° C. and 1984 g of propylene oxide was added dropwise over 4 hours in a sealed state. Aged until pressure change disappeared. Subsequently, the temperature was raised to 160 to 170 ° C., and 1690 g of ethylene oxide was added dropwise over 2 hours, and the mixture was aged until there was no change in pressure. After cooling to 60 ° C. or lower, the catalyst was neutralized with a 10% oxalic acid aqueous solution and then dehydrated under reduced pressure to obtain POE (9) POP (8) POP (3) methyl ether. 3500 g of this content, 940 g of isostearic acid, and 11 g of potassium carbonate were charged in a 5 L flask and sufficiently purged with nitrogen, then heated to 200-210 ° C. and aged for 10 hours. After cooling to 30 ° C., the catalyst was neutralized with a 10% oxalic acid aqueous solution and then dehydrated under reduced pressure to obtain POE (9) POP (8) POE (3) methyl ether isostearate. This was designated as sample number 3.

[Comparative Example 1]
(Production of POE (5) POP (5) POE (3) octyldodecyl ether)
In the same manner as in Example 1, 229 g of isophor 20 (octyldodecyl alcohol, manufactured by SASOL Co., Ltd.) and 1.4 g of KOH were charged into a 1 L autoclave and sufficiently purged with nitrogen. . The temperature was raised to 160 to 170 ° C., and 16 g of ethylene oxide was added dropwise over 2 hours in a sealed state, and aging was performed until there was no pressure change. Subsequently, the mixture was cooled to 120 to 130 ° C., and 213 g of propylene oxide was added dropwise over 4 hours, and the mixture was aged until there was no change in pressure. The temperature was further raised to 160 to 170 ° C., and 97 g of ethylene oxide was added dropwise over 1 hour, and aging was carried out until the pressure change disappeared. After cooling to 60 ° C. or lower, the catalyst was neutralized with a 10% oxalic acid aqueous solution and then dehydrated under reduced pressure to obtain POE (5) POP (5) POP (3) octyldodecyl ether. This was designated as comparative product 1.

[Comparative Example 2]
(Production of POE (8) octyldodecyl ether)
Into a 1 L autoclave, 229 g of isophor 20 (manufactured by SASOL, octyldodecyl alcohol) and 1.4 g of KOH were charged and sufficiently purged with nitrogen, and then alcoholated at 100 to 110 ° C. for 1 hour under reduced pressure. The temperature was raised to 160 to 170 ° C., and 258 g of ethylene oxide was added dropwise over a period of 4 hours in a sealed state, and aging was performed until there was no pressure change. After cooling to 60 ° C. or lower, the catalyst was neutralized with a 10% oxalic acid aqueous solution and then dehydrated under reduced pressure to obtain POE (8) octyldodecyl ether. This was designated as comparative product 2.

[Comparative Example 3]
(Production of POE (3) POP (2) POE (3) lauryl ether)
Conol 1275 in a 1L autoclave
194 g (manufactured by Shin Nippon Rika, lauryl alcohol) and 1.2 g of KOH were charged and sufficiently purged with nitrogen, and then alcoholated at 100 to 110 ° C. under reduced pressure for 1 hour. The temperature was raised to 160 to 170 ° C., and 132 g of ethylene oxide was added dropwise over 2 hours in a sealed state, and aging was carried out until there was no pressure change. Subsequently, the mixture was cooled to 120 to 130 ° C., and 116 g of propylene oxide was added dropwise over 4 hours, and the mixture was aged until there was no change in pressure. The temperature was further raised to 160 to 170 ° C., and 132 g of ethylene oxide was added dropwise over 2 hours, and the mixture was aged until there was no change in pressure. After cooling to 60 ° C. or lower, the catalyst was neutralized with a 10% oxalic acid aqueous solution and then dehydrated under reduced pressure to obtain POE (3) POP (2) POE (3) lauryl ether.

[Example 4]
(Evaluation as a cleaning composition)
A cleaning composition having the composition shown in Table 1 was produced by an ordinary method, and the following items were evaluated. The evaluation results are also shown in Table 1.
a) compatibility;
The appearance of the cleaning composition shown in Table 1 was evaluated visually at room temperature according to the following criteria. The results are shown in Table 1.
◎: Transparent and no precipitation ○: Transparent and slight precipitation ×: White turbidity or separation / precipitation b) Stability (storage stability)
The cleaning composition shown in Table 1 was allowed to stand at −10 ° C. and 50 ° C. for 2 weeks, and the appearance was visually evaluated according to the following criteria. The results are shown in Table 1.
◎: Transparent and free of precipitation ○: Transparent and slightly precipitated ×: White turbidity or separation / precipitation c) Sensory evaluation The sensory evaluation of the cleaning composition shown in Table 1 was performed on 10 female panels for use feeling. . Regarding the evaluation items of “Ease of familiarity with makeup stains”, “Massage feeling”, “Ease of rinsing after washing”, and “Feeling fresh after washing”, “Very good: 5 points”, “Good: 4 points” ”,“ Ordinary: 3 points ”,“ bad: 2 points ”,“ very bad: 1 point ”, an average score was calculated and evaluated according to the following criteria.
◎: 5-4 points ○: 4-3 points ×: Less than 3 points

From the results of Table 1, it was confirmed that the detergent composition containing 1-3 of the product of the present invention was excellent in storage stability, in particular, stability at low temperatures, and its sensory evaluation was also good.

Claims (4)

A cleansing composition for makeup cleansing, comprising a nonionic surfactant represented by the following general formula (1).
_{^{R 1 O- (EO) x -}} (AO) y - (EO) z -R 2 (1)
R ¹ : linear or branched saturated or unsaturated fatty acid residue having 8 to 22 carbon atoms R ² : linear or branched short chain alkyl group having 1 to 4 carbon atoms EO: ethylene oxide unit AO: Alkylene oxide unit having 3 or more carbon atoms x: integer of 1 or more y: integer of 2 to 10 z: integer of 1 or more The cleaning composition for makeup cleansing according to claim 1, wherein the nonionic surfactant is liquid at room temperature. The detergent composition for makeup cleansing according to claim 1 or 2, wherein the fatty acid residue of the nonionic surfactant is derived from isostearic acid or oleic acid. The cleaning composition for makeup cleansing according to any one of claims 1 to 3, further comprising one or more kinds of liquid oil at normal temperature selected from hydrocarbon oil, ester oil, silicon oil, and vegetable oil. object.