KR100541147B1 - Oil-free typed Cosmetic composition in the form of water-in-silicone emulsion - Google Patents

Abstract

The present invention relates to an oil-free silicone water-in-oil emulsion cosmetic composition, the oil-free silicone water-in-oil emulsion cosmetic composition according to the present invention, based on the total weight of 10 to 35% by weight of cyclomethicone, silicone-based coating agent 0.1 To 10% by weight and 0.5 to 5% by weight of a silicone-based emulsifier. The cosmetic composition of the present invention is a silicone water-emulsion type using cyclomethicone, which is a silicone oil as an oil, and has very little bleeding during makeup, and is very excellent in use and skin stability such as applicability, makeup persistence, and long-term storage stability. .

Oil-Free * Silicone Heavy Water * Cyclomethicone * Cosmetic

Description

Oil-free typed Cosmetic composition in the form of water-in-silicone emulsion}

The present invention relates to an oil-free silicone heavy water emulsified cosmetic composition using only silicone-based oils without mixing triglyceride-based oils, minerals, plant-based, animal-based, hydrocarbon-based oils, etc. The present invention relates to an oil-free silicone water-in-oil emulsified cosmetic composition which is excellent in long-term preservation stability as well as excellent feeling of use and skin stability such as almost no bleeding during oil cosmetics by using a chicon and a silicone-based coating agent.

In general, emulsified cosmetic composition forms are roughly divided into oil-in-water (O / W) emulsion type, water-in-oil (W / O) emulsion type. Oil-in-water (O / W) emulsifying type is a hydrophilic type, the feel is soft and soft, but there is a disadvantage that the cosmetic persistence and water resistance is poor. In order to remedy this drawback, a water-in-oil (W / O) emulsified type has been developed. However, the water-in-oil (W / O) emulsified type has excellent cosmetic persistence and water resistance, but has a disadvantage in that it is a burden on the skin due to stickiness, oiliness, waxy feeling, and poor usability such as spreadability and spreadability. In particular, the conventional emulsion composition contains a large amount of hydrocarbon oils such as liquid paraffin, squalane, and ester (including triglyceride) oils, olive oil, cottonseed, vegetable oils such as macadamia oil, etc. It is known to be irritating and does not satisfy consumers' desire for hypoallergenic cosmetics.

On the other hand, silicone oil is different depending on its molecular weight and structure, but due to its elastic and three-dimensional structure, it is very light and has excellent usability and skin stability such as malleability and spreadability, as well as excellent water resistance and emollient effect. Efforts to take advantage of this continue. U.S. Pat. Nos. 556831 and 51,722, WO9603962, WO9509598, and Japanese Patent Laid-Open Nos. 86-159448 and 95-83288 disclose oil-in-water or water-in-oil cosmetics using such silicone oils. However, the emulsified cosmetic composition disclosed in this patent document is used in combination with oils other than silicone oil, but has a disadvantage of poor makeup durability.

Therefore, the technical problem to be achieved by the present invention is to solve the above problems, there is little lubrication during oil cosmetics, oil-free silicone water-in-oil emulsification type not only excellent in the use and skin stability, such as application properties, makeup persistence, etc., but also long-term storage stability It is to provide a cosmetic composition.

In order to achieve the above object, the present invention is characterized by containing 10 to 35% by weight of cyclomethicone, 0.1 to 10% by weight of the silicone film-forming agent and 0.5 to 5% by weight of the silicone emulsifier based on the total weight It provides an oil-free silicone water-in-oil emulsion cosmetic composition.

In the oil-free silicone water-in-oil emulsion cosmetic composition according to the present invention, the silicone-based coating agent may be cyclomethicone (and) Acrylates / Dimethicone Copolymer, cyclomethicone trimethylsiloxysilicate (Cyclomethicone (and) Trimethylsiloxysilicate), dimethicone trimethylsiloxysilicate, etc. may be used, and as the silicone-based emulsifier, dimethicone, dimethicone copolyol, silicone glycol copolyol, etc. may be used. .

Hereinafter, the present invention will be described in detail.

Typically, cosmetic compositions containing synthetic siloxanes as a periodic agent are classified into silicone water-in-oil (W / S) emulsion type, and the term "oil-free" used in the present invention refers to only silicone-based oils for cosmetic oils. It means to use as. However, it does not deny that a small amount of ester oil or the like is added within a range that does not impair the object of the present invention.

The oil-free silicone water-in-oil emulsion cosmetic composition according to the present invention contains 10 to 35% by weight of cyclomethicone, 0.1 to 10% by weight of a silicone-based coating agent, and 0.5 to 5% by weight of a silicone-based emulsifier.

In the cosmetic composition of the present invention, as the oil part, cyclomethicone, which is a volatile silicone oil, is used. The cyclomethicone not only has excellent skin safety, feeling, and the like, but also provides excellent makeup sustainability. The general structure of cyclomethicone is as follows, and cyclomethicone (Dow corning Co., Ltd .: DC244, 245, 344, 345, 246) having n of 4 to 6 may be used alone or in combination of two or more thereof.

<Structure 1>

In Structural Formula 1, n is 4 to 6.

The silicone film-forming agent contained in the cosmetic composition of the present invention not only eliminates oil residue and grease caused by oil during makeup, but also forms a crosslinkable bond in the powder part and the oil phase to form a uniform and smooth film. As a silicone film-forming agent, cyclomethicone acrylate / dimethicone copolymer (Acrylates / Dimethicone Copolymer) is uniformly dispersed in cyclomethicone (Cyclomethic

one (and) Acrylates / Dimethicone Copolymer), Trimethylsiloxysilicate

lsiloxysilicate: Cyclomethicone (and) Trimethylsiloxysilicate or non-volatile, in which [(CH ₃ ) ₃ SiO _1/2 ] x [SiO ₂ ] y) is uniformly dispersed in cyclomethicone, a volatile silicone oil Dimethicone trimethylsiloxysilicate homogeneously mixed with dimethicone, a silicone oil, may be used alone or in combination. Their content can be used according to the feeling and hardness of the final product, the preferred content is 0.1 to 10% by weight based on the total weight of the composition.

In addition, it is preferable to use 0.5-5 weight% of dimethicone, dimethicone copolyol, or silicone glycol copolyol whose HLB (Hydrophile Lipophile Balance) is 5.0-13.9 as silicone type emulsifier contained in the cosmetic composition of this invention. In addition, the nonionic emulsifier may be mixed with an appropriate amount of the silicone emulsifier in consideration of the dispersion stability according to the formulation of the cosmetic composition, the type and content of the powder used. When only the silicone emulsifier is used as the main agent, it is more preferable to use dimethicone and dimethicone copolyols of HLB 8.0-13.0, and when using in combination with a nonionic emulsifier, silicone glycol copolymer (HLB: 3.0- 8.0), lauryl methicone copolyol (HLB: 3.0-8.0), or cyclomethicone dimethicone copolyol (HLB: 3.0-8.0), and a monostearate glycerin, sorbitan monooleate, and squiooleic acid sorbitan , Monostearic acid polyoxyethylene sorbitan (20 E.O), monooleate polyoxyethylene sorbitan (20

It is more preferable to mix and use 1 or more types from the 40s stearate of.

In addition, the oil-free silicone water-in-oil emulsified cosmetic composition of the present invention is a moisturizing agent such as 1,3-butylene glycol, concentrated glycerin, propylene glycol, betaine, etc. in order to impart a moisturizing effect to the total weight of the composition 1-20. It is preferable to add more by weight, and powders such as titanium dioxide, talc, mica, iron oxide, kaolin, ultramarine, chromium oxide, zinc oxide, silica, and PMMA may be further added in consideration of the cosmetic effect. Preferred specific gravity of the cosmetic composition is 1.0 to 1.5.

Hereinafter, the present invention will be described in detail with reference to Examples. However, embodiments according to the present invention can be modified in many different forms, the scope of the present invention should not be construed as limited to the embodiments described below. Embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art.

Examples 1 and 2 and Comparative Examples 1 and 2

To the ingredients and contents as described in Table 1 below were prepared as follows. That is, after heating and mixing raw materials 12-22 shown in following Table 1 at 70 degreeC, raw materials 6-11 were thrown in here and it was made to disperse | distribute uniformly. Here, raw materials 1 to 5 were heated to 75 to 80 ° C., and dissolved melts were added to emulsify for 10 minutes, and then cooled to 30 ° C. to prepare a cosmetic composition.

number  Raw material name (% by weight) Comparative example Example One 2 One 2 One Purified water to 100 to 100 to 100 to 100 2 1,3-butylene glycol 5.0 5.0 5.0 5.0 3 Concentrated glycerin 5.0 5.0 5.0 5.0 4 Magnesium sulfate 0.5 0.5 0.5 0.5 5 antiseptic Quantity Quantity Quantity Quantity 6 Titanium dioxide 10.0 10.0 10.0 10.0 7 Ferric oxide 0.3 0.3 0.3 0.3 8 Yellow iron oxide 0.5 0.5 0.5 0.5 9 Black iron oxide 0.15 0.15 0.15 0.15 10 Silica 2.0 2.0 2.0 2.0 11 Mica 3.0 3.0 3.0 3.0 12 Cyclomethicone - 10.0 25.0 25.0 13 Dimethicone - 7.0 - - 14 Squalane 10.0 8.0 - - 15 Mineral oil 10.0 - - - 16 Tri (capryl, caprylic acid) glycerin 5.0 - - - 17 Bentonite - - 1.0 1.0 18 Microcrystalline Lead 1.0 1.0 - - 19 beeswax 1.0 1.0 - - 20 Sesquioleate Sorbate 1.5 1.5 - 1.0 21 Polyoxyethylene Methyl Polysiloxane 3.0 3.0 3.0 3.0 22 Cyclomethicone Acrylate / Dimethicone Copolymer - - 5.0 5.0

Hereinafter, long-term preservation stability, skin safety, and usability were evaluated about the cosmetics obtained in Examples 1-2 and Comparative Examples 1-2.

<Long term storage stability evaluation>

In order to examine the stability over time of the cosmetics of Examples 1 and 2 and Comparative Examples 1 and 2, the stability after 3 months under the temperature conditions shown in Table 2 was evaluated according to the following criteria. In the case of the CYCLE evaluation, the circulating temperature method was observed while gradually circulating every two days within the range of 45 ° C to -10 ° C.

(Evaluation standard)

Very bad (complete separation): 1

Poor (partly separated, bad cotton): 2

Normal (fine separation, slightly poor cotton): 3

Good (good separation, poor surface): 4

Very Good (Good Separation, Good Cotton): 5

Item Comparative Example 1 Comparative Example 2 Example 1 Example 2 45 ℃ 5 5 5 5 37 ℃ 5 5 5 5 Room temperature 5 5 5 5 0 ℃ 5 5 5 5 CYCLE 5 5 5 5

Referring to Table 2, the oil-free silicone water-in-oil emulsion cosmetic composition according to the present invention was found to be excellent in long-term storage stability like the conventional emulsion cosmetic composition.

<Skin Safety Assessment>

In order to examine the skin stability of the cosmetics of Examples 1 and 2 and Comparative Examples 1 and 2, 50 women 20 to 50 years of age was subjected to a patch test on the upper arms of both arms. After 24 hours of patch removal, the patch was removed, and after 2 hours, the presence or absence of side effects such as erythema and itching was determined, and the results are shown in Table 3.

Item Comparative Example 1 Comparative Example 2 Example 1 Example 2 Positive reaction number (person) 5 3 One 2 percentage(%) 10 6 2 4

Referring to Table 3, it can be seen that the oil-free silicone water-in-oil emulsion cosmetic composition of the embodiment according to the present invention is superior in terms of skin safety than the cosmetic composition of the comparative example.

<Evaluation of feeling>

50 females aged 20-35 years were divided into four groups, and Examples 1 and 2 and Comparative Examples 1 and 2 were appropriately adjusted to each group to be used on both sides of the face. And feeling of use such as makeup persistence were evaluated and the results are shown in Table 4.

<Evaluation Criteria>

Very bad: 1, Bad: 2, Moderate: 3, Good: 4, Very good: 5

Item Comparative Example 1 Comparative Example 2 Example 1 Example 2 Bundle 1.9 3.0 4.2 4.0 Application 2.9 3.1 4.1 3.9 Makeup persistence 2.9 3.1 4.5 4.1

As shown in Table 4, the oil-free silicone water-in-oil emulsified cosmetic composition of the embodiment according to the present invention has a significant improvement in feeling, such as excellent lubrication and spreadability and long-lasting makeup compared to the cosmetic of the comparative example. Able to know

As described above, the oil-free silicone water-in-oil emulsified cosmetic composition according to the present invention uses only an appropriate amount of cyclomethicone silicone oil as an oil part and simultaneously contains a silicone-based film forming agent, so that there is almost no bleeding during makeup and application and sustainability of makeup Not only the feeling of back is very excellent, but also the skin safety is greatly improved.

Claims (4)

In the water-in-silicone emulsion cosmetic composition, oil-free, characterized in that it contains 10 to 35% by weight of cyclomethicone, 0.1 to 10% by weight of the silicone film-forming agent and 0.5 to 5% by weight of the silicone-based emulsifier based on the total weight Silicone water emulsion type cosmetic composition. The method of claim 1, wherein the silicone film-forming agent is cyclomethicone (and) Acrylates / Dimethicone Copolymer (Cyclomethicone (and) Acrylates / Dimethicone Copolymer), cyclomethicone trimethylsiloxy silicate (Cyclomethicone (and) Trimethylsiloxysilic ate), Dimethicone (and) Trimethylsiloxysili cate) and oil-free silicone water-in-oil emulsion cosmetic composition, characterized in that any one selected from the group consisting of. The oil-free silicone water-in-oil emulsion cosmetic composition according to claim 1, wherein the silicone-based emulsifier is any one selected from the group consisting of dimethicone, dimethicone copolyol, silicone glycol copolyol, and mixtures thereof. The oil-free silicone water-in-oil emulsion cosmetic composition according to claim 1, wherein the cosmetic composition has a specific gravity of 1.0 to 1.5.