JPH11199438A - Water-based cleansing cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water-based cleansing cosmetic that gives freshened sense of use and can satisfactorily remove oily or water-based stains on the skin. SOLUTION: A polyoxyethylene fatty acid glycerol is admixed to cosmetics for cleansing. The cleansing cosmetics contains, in addition, one or two or more kinds of thickeners selected from carageenan, alginic acid and its salt, hydroxypropylmethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, carboxyvinyl polymer and its salt and xanthan gum.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleansing cosmetic which is suitable for removing oily stains.

[0002]

2. Description of the Related Art Cleansing cosmetics are cosmetics used to remove oily stains and make-up cosmetics caused by sebum and the like, and usually focus on removing fat-soluble components. There are two types of water-based cleansing agents which aim at removing water-based stains and oil-based stains by washing with water and washing with a high concentration of water. Of these, the former has the advantage of exhibiting excellent detergency against oily dirt, but has the disadvantage that the feeling of use is oily and it is difficult to remove water-based stains, and the latter has a refreshing feeling of use. Although it has an advantage that it is excellent in that water-based stains can be easily removed, it has a disadvantage that there is a limit to oily stains that can be removed. That is, there has been a demand for the development of a cleansing cosmetic which has a refreshing feeling in use and can sufficiently remove oily and aqueous stains.

[0003] On the other hand, polyoxyethylene fatty acid glycerin is known as a hydrophilic nonionic surfactant, and is already on the market. However, it also has an excellent effect of removing oily dirt. Also to be contained in the cleansing agent, when included in the aqueous cleansing agent,
The feeling of use was refreshing, and it was not known that it had a property that oily and aqueous stains could be sufficiently removed.

[0004]

DISCLOSURE OF THE INVENTION The present invention has been made under such circumstances, and it is an object of the present invention to provide a cleansing cosmetic which has a refreshing feeling in use and can sufficiently remove oily and aqueous stains. I do.

[0005]

In view of this situation, the present inventors have sought a cleansing cosmetic which has a refreshing feeling of use and can sufficiently remove oily and aqueous stains. As a result of intensive studies aimed at improvement, the present inventors have found such properties in cleansing cosmetics characterized by containing polyoxyethylene fatty acid glycerin, and have completed the invention. Hereinafter, the present invention will be described in detail focusing on embodiments of the present invention.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION (1) An essential component of the present invention,
Polyoxyethylene fatty acid glycerin ester The polyoxyethylene fatty acid glycerin ester, which is an essential component of the present invention, is a known substance already known as a hydrophilic nonionic surfactant, and many are commercially available. It is also possible to purchase and use it,
It is preferable to use a commercial product. Here, the addition mole number of polyoxyethylene is preferably 5 to 20, and the fatty acid preferably has 12 to 20 carbon atoms. Examples of such commercially available products include Nikkor TMGO-5 (polyoxyethylene (5) glyceryl monooleate) and TMGO-10 (polyoxyethylene (10) glyceryl monooleate) manufactured by Nippon Surfactant Industries, Ltd.
TMGO-15 (polyoxyethylene (15) glyceryl monooleate), TMGO-20 (polyoxyethylene (20) glyceryl monooleate), TMGS-5
(Polyoxyethylene (5) glyceryl monostearate), TMGS-10 (polyoxyethylene (10) glyceryl monostearate), and Henkel's cetiol HE (polyoxyethylene (7) coconut oil fatty acid glycerin). Cetiol HE is particularly preferred. In the cleansing cosmetic composition of the present invention, these polyoxyethylene fatty acid glycerin esters may be contained solely or in combination of two or more. Such a polyoxyethylene fatty acid glycerin ester has an effect of removing not only an aqueous stain but also an oily stain, and has a characteristic that it can be incorporated into an aqueous cleansing agent. The content of the polyoxyethylene fatty acid glycerin ester in the cleansing cosmetic composition of the present invention is preferably 1 to 10% by weight, more preferably 3 to 7% by weight.

(2) Cleansing cosmetic of the present invention The cleansing cosmetic of the present invention is characterized by containing the above-mentioned polyoxyethylene fatty acid glycerin ester. The cleansing cosmetic of the present invention can be applied to a dosage form containing a high concentration of oil and focused on the removal of oily stains, and an aqueous cleansing water washable. A more preferred dosage form is an aqueous cleansing agent. The cleansing agent of the present invention may contain, in addition to the essential component polyoxyethylene fatty acid glycerin ester, optional components commonly used in these cleansing agents. Examples of such optional components include hydrocarbons such as petrolatum and microcrystalline wax, esters such as jojoba oil and gay wax, triglycerides such as tallow, olive oil, higher alcohols such as cetanol and oleyl alcohol, stearic acid, and olein. Fatty acids such as acids, polyhydric alcohols such as glycerin and 1,3-butanediol, nonionic surfactants, anionic surfactants, cationic surfactants, amphoteric surfactants, thickeners such as ethanol and carbopol , Preservatives, ultraviolet absorbers, antioxidants, pigments, powders and the like. Among these, preferred optional components are oil agents that easily remove oily dirt and components that stabilize the system without impairing the dirt removing action. Preferred examples of the former include diglycerin tetraolate, and examples of the latter include a thickener in an aqueous cleansing dosage form. The preferred content of diglycerin tetraolate is 1 to 40% by weight, more preferably 5 to 30% by weight. Specific examples of the latter include one or more selected from carrageenan, alginic acid and salts thereof, hydroxypropylmethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, carboxyvinyl polymers and salts thereof, and xanthan gum. Of these, hydroxypropyl methylcellulose is particularly preferred. The preferred content of such a thickener in the aqueous cleansing composition of the present invention is 0.5 to 5% by weight, more preferably 1 to 5% by weight. This is because the addition of this amount stabilizes the system and provides a preparation having an excellent feeling in use. Further, even when these thickeners are contained in a cleansing cosmetic having a high oil content, the stability can be improved. It is preferable to add an anionic surfactant such as a fatty acid acylglycine salt, since the action of removing aqueous dirt is improved. The preferred content of the anionic surfactant is 1 to 5% by weight. As the anionic surfactant, a fatty acid acylglycine salt is preferable. This is because it is excellent in safety and cleanability. It is particularly preferable to include an amine oxide surfactant such as lauryl dimethylamine oxide since this effect is enhanced. The preferred content of the amine oxide surfactant is 1 to 5% by weight.

[0008]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples, but it goes without saying that the present invention is not limited to only these examples.

Example 1 A cleansing agent having a high oil content was prepared according to the following formulation. That is,
The components of (b) were each dissolved by heating at 80 ° C., and (b) was gradually added and emulsified. This was stirred and cooled to obtain a cleansing charge. I Squalane 30 parts by weight Neopentyl glycol-2-ethylhexanate 30 parts by weight Diglycerin tetraolate 10 parts by weight Cetanol 3 parts by weight Polyoxyethylene (7) coconut oil fatty acid glycerin 5 parts by weight 0.1 part by weight butyl paraben b 1 , 3-butanediol 5 parts by weight Methyl paraben 0.1 parts by weight Water 16.8 parts by weight

<Example 2> The cleansing material of Example 1 was examined for the degree of lipstick falling. That is, 0.1 g of lipstick is applied to a portion 2 cm square on the inner side of the upper arm, 0.1 g of cleansing cosmetic is placed, rubbed lightly three times by hand, lightly wiped with wet cotton, and the remaining condition of the lipstick is ++: completely. Not determined, +: slightly left, ±: slightly left,-: clearly left. Table 1 shows the results. Here, the polyoxyethylene (7) coconut oil fatty acid glycerin was replaced with POE (60) hydrogenated castor oil in Comparative Example 1, the POE (20) behenyl ether was replaced with Comparative Example 2, and POE (4).
5) Comparative Example 3 was replaced with stearic acid.

[0011]

[Table 1]

<Examples 3 to 6> Cleansing agents having a high oil content were prepared according to the following formulations. That is, the components (a) and (b) were each heated and dissolved at 80 ° C., and (b) was gradually added to and emulsified. This was stirred and cooled to obtain a cleansing charge. This was evaluated in the same manner as in Example 2. Table 2 shows the results. Results and Example 2
From the results, it can be seen that among the cleansing cosmetics of the present invention, in a dosage form containing an oil at a high concentration, it is preferable to contain diglyceryl tetraolate in the oil component.
Each of these oily cleansing agents had a refreshing feel after use. I Squalane 30 parts by weight Neopentyl glycol-2-ethylhexanate 30 parts by weight Oil * 10 parts by weight Cetanol 3 parts by weight Polyoxyethylene (7) coconut oil fatty acid glycerin 5 parts by weight 0.1 parts by weight butylparaben b 1,3 -Butanediol 5 parts by weight Methyl paraben 0.1 parts by weight Water 16.8 parts by weight * Details of the oil agent are shown in Table 2.

[0013]

[Table 2]

<Examples 7 to 9> An aqueous cleansing agent was prepared according to the following formulation. That is, a
Then, the mixture was solubilized by stirring, and a suspension uniformly dispersed therein was added thereto, followed by stirring to obtain an aqueous transparent cleansing agent. For this, the cleansing effect was confirmed by the method of Example 2. Further, the resulting preparation was stored at 40 ° C. for one month to confirm the stability. Stability: ++: no change, +: almost no change, ±: slight separation of water phase or oil phase,
-: Further wash-off function, ++: very good, +:
Good, ±: slightly difficult,-: difficult. Also, the feeling after use was evaluated as ++: very refreshing, +: refreshing, ±: slightly sticky,-: sticky. Table 3 shows the results. From this, the aqueous cleansing agent which is the cleansing cosmetic of the present invention,
It is clear that the feeling of use is refreshing and it is a cleansing cosmetic that can sufficiently remove oily and aqueous stains. Further, it is understood that the preferable content of the thickener, hydroxypropyl methylcellulose, is 0.5 to 5% by weight, more preferably 1 to 4% by weight. Dipropylene glycol 1.5 parts by weight isoprene glycol 3.5 parts by weight water ** polyoxyethylene (7) coconut oil fatty acid glycerin 5 parts by weight methyl paraben 0.2 parts by weight b hydroxypropyl methylcellulose ** 1,3-butanediol 3 parts by weight ** The amounts of water and hydroxypropylmethylcellulose (HPMC) are detailed in Table 3.

[0015]

[Table 3]

<Examples 10 to 14> An aqueous cleansing agent was prepared according to the following formulation. That is, i is 80
The mixture was heated to ° C. and stirred to solubilize, and a suspension uniformly dispersed therein was added and stirred to obtain an aqueous transparent cleansing agent. For this, the cleansing effect was confirmed by the method of Example 2. Table 4 shows the results. From this table and the results of Example 8, it can be seen that the aqueous cleansing agent of the present invention has an excellent cleansing effect, and that polyoxyethylene (7) coconut oil fatty acid glycerin is particularly preferable as the polyoxyethylene fatty acid glycerin. . Dipropylene glycol 1.5 parts by weight isoprene glycol 3.5 parts by weight water 83.8 parts by weight polyoxyethylene fatty acid glycerin *** 5 parts by weight methyl paraben 0.2 parts by weight b hydroxypropyl methylcellulose 3 parts by weight 1,3- Butanediol 3 parts by weight *** Details of polyoxyethylene fatty acid glycerin are shown in Table 4.

[0017]

[Table 4]

<Examples 15 to 18> An aqueous cleansing agent was prepared according to the following formulation. That is, i is 80
The mixture was heated to ° C. and stirred to solubilize, and a suspension uniformly dispersed therein was added and stirred to obtain an aqueous transparent cleansing agent. For this, the cleansing effect was confirmed by the method of Example 2. Table 5 shows the results. From this table and the results of Example 8, it can be seen that the aqueous cleansing agent of the present invention has an excellent cleansing effect, and that the content of polyoxyethylene fatty acid glycerin is particularly preferably 3 to 7% by weight. Dipropylene glycol 1.5 parts by weight Isoprene glycol 3.5 parts by weight Water **** Polyoxyethylene (7) coconut oil fatty acid glycerin **** Methyl paraben 0.2 parts by weight b Hydroxypropyl methylcellulose 3 parts by weight 1, 3-butanediol 3 parts by weight **** Water and the weight (parts by weight) of polyoxyethylene (7) coconut oil fatty acid glycerin (HE) are shown in Table 5 in detail.

[0019]

[Table 5]

[0020]

According to the present invention, it is possible to provide a cleansing cosmetic which has a refreshing feeling of use and can sufficiently remove oily and aqueous stains.

Claims (4)

[Claims] 1. A cleansing cosmetic comprising polyoxyethylene fatty acid glycerin. 2. The cleansing cosmetic according to claim 1, which is an aqueous cleansing agent. 3. The cleansing cosmetic according to claim 1, further comprising a thickener. 4. The method according to claim 1, wherein the thickener is one or more selected from carrageenan, alginic acid and salts thereof, hydroxypropylmethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, carboxyvinyl polymers and salts thereof, and xanthan gum. The cleansing cosmetic according to claim 3, characterized in that: