JP2000344623A - Aerosol composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a composition which is used for aerosols, has the improved stability of homogeneity with the passage of time and can provide the aerosols having excellent usability, by including a polyoxyethylene palm oil fatty acid glyeride. SOLUTION: This composition for aerosols contains a polyoxyethylene palm oil fatty acid glyceride in an amount of preferably 0.1 to 50 wt.%, more preferably 1 to 20 wt.%. The average added mole number of the added oxyethylene units is preferably 5 to 15, more preferably 5 to 10. The composition includes compositions for pack cosmetics, compositions for hair-dressing cosmetics, and compositions for cleansing cosmetics such as face-cleansing cosmetics or shampoos, especially preferably the compositions for cleansing cosmetics. The composition and a gas for jetting are preferably contained in the aerosols in a weight ratio of preferably 10:90 to 90:10, more preferably 90:10 to 50:50.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aerosol and a composition for aerosol, which is suitable for a cosmetic for cleaning and the like.

[0002]

2. Description of the Related Art Cosmetic products for aerosols are known in the form of foaming agents called mousses and in the form of sprays such as sprays. These cosmetics include:
It is widely used for pack cosmetics, hairdressing, scalp treatment, etc. because it has the property of being easily applied evenly to a wide part or a part having a large unevenness with a small amount of contents. In addition, since such characteristics are not suitable only for cosmetics, they are widely used in applications other than cosmetics such as disinfectants, anti-inflammatory agents, and cooling agents. In such an aerosol, an important quality is to keep the composition to be jetted uniformly and for a long time. For this reason, many efforts have been made to suppress litter formation and content separation, but unfortunately no definitive solution to such problems has been found so far.

[0003] On the other hand, aerosol dosage forms have not yet been used in cleansing cosmetics or cleansing cosmetics. This is because the properties of the aerosol composition as described above are hardly exhibited in the field of cleaning agents, and cleaning components such as soap in the cleaning agent are liable to generate lumps and the like. This is because it may cause clogging of the ejection port or impair the characteristics of the aerosol itself.

[0004] Furthermore, polyoxyethylene coconut oil fatty acid glycerin is a surfactant used in the field of cosmetics and the like, and it cannot be used as a detergent or aerosol at all. unknown.

[0005]

SUMMARY OF THE INVENTION The present invention has been made under such circumstances, and means for improving the stability over time of the uniformity of the composition for aerosols and the use of such a stabilization method have been developed. An object of the present invention is to provide an aerosol agent having improved properties.

[0006]

In view of such circumstances, the present inventors have developed a means for improving the stability over time of the uniformity of a composition for aerosol, and an aerosol having improved usability due to such stabilization. As a result of intensive research efforts, they have found that an aerosol composition containing polyoxyethylene coconut oil fatty acid has such excellent stability. Further studies have been made, and it has been found that when an aerosol is prepared by combining this with a gas, an aerosol having stable jetting properties can always be obtained. Applying this to detergents, we found that aerosol dosage forms of detergents, which were previously impossible due to lump formation, can be formulated,
The invention has been completed. Hereinafter, the present invention will be described in detail focusing on embodiments.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (1) Composition for Aerosol of the Present Invention The composition for aerosol of the present invention is characterized by containing polyoxyethylene coconut oil fatty acid glycerin.
Polyoxyethylene coconut oil fatty acid glycerin is a raw material widely used as a nonionic surfactant in the field of skin external preparations such as cosmetics, and it is already commercially available. it can. In this composition, the number of moles of polyoxyethylene to be added can be appropriately changed depending on the purpose of use. In order to suppress the formation of and improve the stability of the emulsified state, the average number of moles of polyoxyethylene added is
5-15 are preferable, and 5-10 are more preferable. As such a polyoxyethylene coconut oil fatty acid glycerin, a commercial product is preferably exemplified by Hiber Oil HE (average number of moles of polyoxyethylene added: 7) manufactured by Koyo Fine Chemical Co., Ltd. Further, part or all of the fatty acids constituting the coconut oil fatty acids are purified, that is, separated into fatty acids such as lauric acid, caprylic acid, capric acid, etc., and polyoxyethylene (derived from coconut oil) fatty acid glyceryl is used. Also belongs to the technical scope of the present invention. Such materials include polyoxyethylene (7)
Preferable examples include cethiol HE810 (manufactured by Henkel) having caprylic acid / glyceryl caprate as a main component. These polyoxyethylene coconut oil fatty acid glycerin may contain only one kind, or may contain two or more kinds in combination. The preferable content of the polyoxyethylene coconut oil fatty acid glycerin is preferably 0.1 to 50% by weight, more preferably 1 to 20% by weight, based on the portion other than the gas, that is, the total amount of the aerosol composition. This is because, in this content range, the lump formation suppressing effect can be exhibited.

The aerosol composition of the present invention may contain, in addition to the above-mentioned essential components, optional components which are usually used in aerosol compositions. Such optional components include, for example, squalane, petrolatum,
Hydrocarbons such as microcrystalline wax, jojoba oil, carnauba wax, esters such as octyldodecyl oleate, triglycerides such as olive oil, tallow, coconut oil, fatty acids such as stearic acid, oleic acid and ritinoleic acid, oleyl alcohol , Stearyl alcohol, higher alcohols such as octyldodecanol, anionic surfactants such as sulfosuccinates and sodium polyoxyethylene alkyl sulfate, amphoteric surfactants such as alkyl betaine salts, and cationic surfactants such as dialkylammonium salts Surfactants, sorbitan fatty acid esters, fatty acid monoglycerides, their polyoxyethylene adducts, polyoxyethylene alkyl ethers, non-ionic surfactants such as polyoxyethylene fatty acid esters other than the above essential components Agents, polyhydric alcohols such as polyethylene glycol, glycerin, 1,3-butanediol, thickening-gelling agents, antioxidants, ultraviolet absorbers, coloring materials, preservatives, powders and the like can be preferably exemplified. However, this is within a range that does not impair the effects of the present invention. The most preferred form is a dosage form containing no nonionic surfactant other than the essential components of the present invention. The composition for aerosol of the present invention includes a composition for a pack cosmetic, a composition for a hairdressing cosmetic, a composition for a cleansing cosmetic such as a face wash or a shampoo, a composition for disinfecting, A composition, a composition for an insecticide, a composition for a fragrance, a composition for cleaning non-living objects such as glass wash, and the like can be exemplified, and the composition can be applied to any composition. This is a cleaning cosmetic composition having the greatest effect of the present invention. In the cosmetic composition for washing, it is preferable to contain a fatty acid soap as a washing component, and among them, the use of coconut oil fatty acid can exert the effect of the polyoxyethylene coconut oil fatty acid glycerin of the present invention more. Is particularly preferred.

(2) Aerosol of the present invention The aerosol of the present invention is characterized by containing the above-mentioned aerosol composition and gas. Here, the gas is a gas component and means a general term for those having a function of ejecting the aerosol composition of the present invention.Even if it is compressed, air that may be compressed at the time of use has a solid shape. Also, carbon dioxide gas which may be generated by chemical change immediately before use, nitrogen gas which may be made into a liquid, hydrocarbon gas such as natural gas, propane, low chain alkyl ether gas such as dimethyl ether, chlorofluorocarbon, etc. One or two or more selected from halogenated hydrocarbon gases and the like can be preferably exemplified. Among these, hydrocarbon gases which may be made into a liquid are most preferable from the viewpoint of the ejection characteristics and environmental conservation. Can be illustrated. The aerosol composition of the present invention can be produced by filling the aerosol composition and the gas into an aerosol container and sealing the container. In this case, the ratio between the aerosol composition and the gas is not particularly limited, but is usually 1% by weight.
0:90 to 90:10 is preferred, and 90:10 to 50:
Particularly preferred is 50. Such a tendency is particularly remarkable in the case of cosmetics for cleaning. This may be due to the jetting characteristics of the contents.

[0010]

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 only to these Examples.

<Example 1> According to the following prescription,
An aerosol composition (facial cleansing cosmetic) was prepared. That is, the ingredients A and B were dissolved by heating at 80 ° C., and the ingredients A and B were gradually added, emulsified, and stirred and cooled to obtain a composition. A composition of Comparative Example 1 was prepared by replacing Hiber Oil HE (polyoxyethylene (7) coconut oil fatty acid glycerin) with water, and the formation of (gel) lumps was evaluated and compared with the composition of the present invention. The evaluation criteria were as follows: ++: no lumps were recognized at all, +: almost no lumps were recognized, ±: some lumps were recognized,-: remarkable lumps were used. 5 ° C, 20
A one-week storage test at 40 ° C. and 40 ° C. was also conducted. As a result, regarding the formation of lumps, those of Examples were ++ and Comparative Example 1 was-. In the preservation test, there was no problem except for lumps under any conditions. In the case of the examples, no lumps were formed even in the storage test. In Comparative Example 1, the lump tended to increase at 5 ° C. This indicates that the composition for aerosol of the present invention has significantly improved non-uniformity factors such as lumps. A Lauric acid 24 parts by weight Hiber oil HE 5 parts by weight b Glycerin 20 parts by weight Potassium hydroxide 8 parts by weight Water 43 parts by weight

Example 2 Liquefied natural gas was prepared by mixing the aerosol composition of the present invention in Example 1 with the aerosol composition of Comparative Example 2 at a weight ratio of 80 (composition): 20 (gas). Together with an aerosol can, and the stability of the discharge amount and the absence of clogging of the discharge port in a continuous discharge test for 10 times ++: very good, +: good, ±: somewhat difficult,-: bad Was determined. As for the results, the composition of the present invention of Example 1 was + with respect to the stability of the ejection amount, and the composition of Comparative Example 1 was-.
The composition of the present invention was + and Comparative Example 1 was-. From this, it can be seen that the difficulty in producing lumps is reflected in the use of the aerosol. In addition, it is understood that the cosmetic for cleaning of the present invention is very convenient to use. Further, it was also found that, when used as an aerosol, the detergency exhibited a superior detergency by using a small amount of a cleaning agent as compared with normal use. According to the effects of the present invention, it can be seen that even cosmetics for cleaning can be aerosolized, and it is clear that such effects are obtained.

Example 3 A cleaning composition was prepared in the same manner as in Example 1 according to the following formulation. In addition, the inhibition of lump formation of this product is ++, and 5 ° C., 20 ° C., 40 ° C.1
No change was observed in the weekly storage test. From this, it can be seen that when applied to a cosmetic composition for cleaning, it is preferred that the fatty acid that produces soap is coconut oil fatty acid. When the aerosol can was filled and sealed together with the liquefied natural gas, and the discharge characteristics were examined, the cleansing cosmetic of the present invention was ++ with neither discharge stability nor clogging. From this, it is apparent that the fatty acid is preferably coconut oil fat in the cleaning cosmetic composition and the cleaning cosmetic of the present invention. B Coconut oil fatty acid 24 parts by weight Hiber oil HE 5 parts by weight b Glycerin 20 parts by weight Potassium hydroxide 8 parts by weight Water 43 parts by weight

Example 4 An aerosol composition for shaving was produced according to the following formulation. That is, each of the components (a) and (b) is heated to 80 ° C., and (b) is gradually added to (a).
The mixture was emulsified to obtain a composition. Contents of this: gas = 8
At 0:20, the mixture was filled in an aerosol can with natural gas, sealed, and a shaving material was obtained. This product was clearly superior to Comparative Example 2 in which the high-bar oil HE was replaced with water, in terms of both the discharge stability and the difficulty in blocking the discharge port. Ibehenyl alcohol 3 parts by weight Polyoxyethylene (150) stearic acid 1 part by weight Hiber oil 0.5 part by weight Stearic acid 0.5 part by weight b Glycerin 10 parts by weight 1,3-butanediol 5 parts by weight Quince extract 0.5 part by weight Parts methyl paraben 0.2 parts by weight water 79.3 parts by weight

Example 5 An aerosol composition for packs (cosmetics) was produced according to the following formulation. That is,
The components (a) and (b) were each heated to 80 ° C., (b) was gradually added to (a), and emulsified to obtain a composition. This product was filled in an aerosol can together with natural gas at content: gas = 80: 20 and sealed to obtain a packed cosmetic. This product has high bar oil HE, both in terms of discharge stability and difficulty in clogging the discharge port.
Was clearly superior to Comparative Example 3 in which was replaced by water. I Cetyl alcohol 2 parts by weight Polyoxyethylene (20) behenyl ether 1 part by weight Hiber oil 0.5 parts by weight Stearic acid 0.5 parts by weight b Glycerin 8 parts by weight 1,3-butanediol 5 parts by weight Quince extract 7 parts by weight Methyl paraben 0.2 parts by weight Water 75.8 parts by weight

Example 6 A cosmetic composition for hair spray was prepared according to the following formulation. That is, the composition was stirred and solubilized to obtain a composition. This was filled and sealed in an aerosol can with natural gas (weight ratio; composition: gas = 10:90) to obtain a hair spray. This product was clearly superior to Comparative Example 4 in which the high-bar oil was replaced with ethanol in terms of ejection stability and no clogging of the ejection port. Octyldodecanol 0.1 part by weight Hydrolyzed collagen 5 parts by weight Hibar oil HE 1 part by weight

Example 7 An aerosol composition was prepared by replacing the high bar oil HE of the aerosol composition of Example 1 with cethiol HE810. As in the case of Example 1, excellent suppression of lump formation was observed. Furthermore, when this was similarly filled into aerosol cans together with natural gas (composition: natural gas = 80:20), an aerosol agent having good discharge reproducibility and less likely to clog the nozzles was obtained.

Example 8 An aerosol composition was prepared in the same manner as in Example 1 in accordance with the following formulation, filled in an aerosol can with natural gas, and an aerosol (cleaning cosmetic) was prepared. Both reproducibility and nozzle clogging were good. A Lauric acid 24 parts by weight Hibar Oil HE 35 parts by weight b Glycerin 5 parts by weight Potassium hydroxide 8 parts by weight Water 28 parts by weight

[0019]

According to the present invention, an aerosol having improved usability can be provided.

Claims (7)

[Claims] 1. A composition for an aerosol, comprising polyoxyethylene coconut oil fatty acid glycerin. 2. The aerosol composition according to claim 1, wherein the average number of moles of polyoxyethylene added is 5 to 15. 3. A composition for an aerosol, wherein the content of polyoxyethylene coconut oil fatty acid glycerin is from 0.1 to 50% by weight. 4. An aerosol comprising the composition for aerosol according to claim 1 and a gas for injection. 5. The weight ratio of the composition for aerosol according to claim 1 to the gas for injection is 90:10.
The aerosol according to claim 4, characterized in that the ratio is 50:50. 6. The aerosol according to claim 4, which is a cosmetic. 7. The aerosol cosmetic according to claim 6, which is an aqueous cleaning agent.