KR102621854B1 - Water-in-oil cosmetic composition with excellent moisture - Google Patents

Abstract

It relates to a water-in-oil cosmetic composition with excellent moisture. More specifically, the water-in-oil cosmetic composition is characterized by maximizing the moisture delivered to the skin by including appropriate amounts of a first emulsifier and a second emulsifier, respectively.

Description

Water-in-oil cosmetic composition with excellent moisture {Water-in-oil cosmetic composition with excellent moisture}

The present invention relates to a water-in-oil cosmetic composition with excellent moisture. More specifically, the water-in-oil cosmetic composition is characterized by maximizing the moisture delivered to the skin by including appropriate amounts of a first emulsifier and a second emulsifier, respectively. there is.

Cosmetics have the function of protecting the skin from external factors such as ultraviolet rays and environmental pollution and delaying aging. Most cosmetics exist in a state where the aqueous phase is dispersed in an oil phase or the oil phase is dispersed in an aqueous phase. At this time, the use of an emulsifier (surfactant) is essential to maintain a stable dispersion state.

An emulsifier is a molecule with an amphipathic structure consisting of a hydrophilic group that is easily compatible with water and a hydrophobic group that is easily friendly to oil. Emulsifiers are located at the interface between the oil phase and the water phase and play a role in lowering the interfacial tension. They form an oil/water interfacial film at the boundary of the phases and prevent particles from combining with each other.

Emulsifiers can be classified by various properties such as purpose, performance, and chemical structure, and are generally divided into ionic and nonionic types depending on their dissociation in water. Ionic emulsifiers that dissociate when dissolved in water are further divided into anionic, cationic, and amphoteric emulsifiers. A representative example of an anion is soap, which is a fatty acid salt, and a representative example of a cation is a quaternary ammonium compound. In addition, non-ionic emulsifiers that do not dissociate into ions when dissolved in water have a variety of hydrophilic parts such as glycerol, polyglycerol, sorbitan, and polyoxyethylene glycol, and have ester or ether bonds with lipophilic parts such as fatty acids and fatty alcohols. there is.

Meanwhile, general water-in-oil cosmetics are less sticky and have good durability, but have less moisture and a more shiny oily feel compared to oil-in-water cosmetics. Raw materials such as powder and silicone gum are used to improve the oily feel, but it is difficult to compensate for the lack of moisture. Likewise, various attempts have been made to increase the moisture content of water-in-oil formulations, but it is extremely rare to commercialize them for consumers to purchase and use because the stability of the formulation is difficult to maintain.

Accordingly, while researching to solve the above problem, the present inventors derived the appropriate content of the first and second emulsifiers included in the water-in-oil cosmetic composition, and found that the water-in-oil cosmetic composition containing this has excellent moisture and emulsification properties. The present invention was completed by discovering that it had stability.

In this regard, Republic of Korea Patent No. 10-1985171 discloses a water-in-oil makeup cosmetic composition containing a hydrophilic gelling agent and polyol.

The present invention was devised to solve the problems of the prior art described above, and its purpose is to provide a water-in-oil cosmetic composition with excellent moisture.

As a technical means for achieving the above-described technical problem, one aspect of the present invention is,

Oily ingredients; and an aqueous phase component; wherein the oil phase component includes a first emulsifier and a second emulsifier, and the content of the second emulsifier is 5 parts by weight or less relative to 100 parts by weight of the cosmetic composition. A water-type cosmetic composition is provided.

The water-in-oil cosmetic composition may be in solid form.

The oil component may further include a substance selected from the group consisting of a binder, skin conditioning agent, antioxidant, dispersant, and combinations thereof.

Based on 100 parts by weight of the cosmetic composition, the content of the oil phase component may be 20 parts by weight to 90 parts by weight, and the content of the water phase component may be 10 parts by weight to 80 parts by weight.

The first emulsifier is Sorbitan Sesquioleate, Lauryl PEG-8 Dimethicone, Sorbitan Isostearate, and Polyglyceryl-6 Polylysi. Polyglyceryl-6 Polyricinoleate, PEG-10 Dimethicone, Cetyl PEG/PPG-10/1 Dimethicone, Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, PEG-9 Polydimethylsiloxyethyl Dimethicone, Lauryl PEG/ PPG-18/18 Methicone (Lauryl PEG/PPG-18/18 Methicone), PEG/PPG-19/19 Dimethicone (PEG/PPG-19/19 Dimethicone), Bis-PEG/PPG -14/14 Dimethicone (Bis-PEG/PPG-14/14 Dimethicone), PEG/PPG-18/18 Dimethicone (PEG/PPG-18/18 Dimethicone), PEG/PPG-20 /20 Dimethicone (PEG/PPG-20/20 Dimethicone), Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, Polyglyceryl-4 Isostearate (Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone) 4 Isostearate) Sorbitan Isostearate, Polypropylsilsesquioxane, Acrylates/Ethylhexyl Acrylate/Dimethicone Methacrylate Copolymer and combinations thereof.

The content of the first emulsifier may be 1 part by weight or more based on 100 parts by weight of the cosmetic composition.

The second emulsifier is Dimethicone/PEG-10/15 Crosspolymer, Cetyl PEG/PPG-10/1 Dimethicone (Cetyl PEG/PPG-10/1) It may contain a substance selected from the group consisting of dimethicone) and combinations thereof.

The content of the second emulsifier may be 0.01 to 1 part by weight based on 100 parts by weight of the cosmetic composition.

The weight mixing ratio of the first emulsifier and the second emulsifier may be 3:1 to 10:1.

The water-in-oil cosmetic composition according to the present invention as described above may be in a solid form, and may have the effect of delivering excellent refreshing sensation and moisturizing ingredients to the skin because a large amount of water molecules are impregnated in the inner phase.

In addition, because the first emulsifier and the second emulsifier have appropriate amounts, it may have excellent emulsion stability.

Figure 1 is a photograph showing the properties of a water-in-oil cosmetic composition prepared according to an embodiment of the present invention.
Figure 2 is a photograph showing the properties of a water-in-oil cosmetic composition prepared according to an embodiment of the present invention after applying a shear force.
Figure 3 is a photograph measuring the skin temperature before applying a water-in-oil type cosmetic composition to the skin according to an experimental example of the present invention.
Figure 4 is a photograph measuring the skin temperature after applying a water-in-oil type cosmetic composition to the skin according to an experimental example of the present invention.

Hereinafter, the present invention will be described in more detail. However, the present invention can be implemented in various different forms, and the present invention is not limited to the embodiments described herein, and the present invention is only defined by the claims to be described later.

In addition, the terms used in the present invention are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In the entire specification of the present invention, 'including' a certain element means that other elements may be further included rather than excluding other elements, unless specifically stated to the contrary.

The present invention,

Oily ingredients; and an aqueous phase component; wherein the oil phase component includes a first emulsifier and a second emulsifier, and the content of the second emulsifier is 5 parts by weight or less relative to 100 parts by weight of the cosmetic composition. A water-type cosmetic composition is provided.

Hereinafter, the water-in-oil cosmetic composition according to the present invention will be described in detail.

In one embodiment of the present application, the cosmetic composition may be a water-in-oil formulation. At this time, the water-in-oil (W/O) type may mean a form in which water is dispersed in oil.

In one embodiment of the present application, the cosmetic composition may be in a solid form. In other words, because the cosmetic composition is impregnated with a large amount of water molecules using macro micelle impregnation technology, excellent refreshing sensation and moisturizing ingredients can be delivered to the skin every time the cosmetic composition is applied to the skin.

In one embodiment of the present application, the water-in-oil type cosmetic composition may include an oil phase component.

In one embodiment of the present application, the oil phase component may include a material selected from the group consisting of a binder, a skin conditioning agent, an antioxidant, a dispersant, and combinations thereof, in addition to the first and second emulsifiers, which will be described later. there is.

At this time, the binder corresponds to wax, and is selected from the group consisting of synthetic wax, ceresin, candelilla wax, carnauba wax, rice bran wax, bead wax, ozokerite, paraffin, polyethylene, microcrystalline, and combinations thereof. It may contain a selected substance.

In addition, the skin conditioning agents include dicaprylyl carbonate, dimethicone, caprylic/capric triglyceride, glyceryl caprylate, dibutyl adipate, isodecyl neopentanoate, and diisostearyl malate. , polyglyceryl-2 triisostearate, octyldodecanol, sunflower seed oil, coco-caprylate/caprate, and combinations thereof.

In one embodiment of the present application, the oil component may further include an antioxidant, a dispersant, or a pigment, if necessary, in addition to the binder and/or skin conditioning agent.

In one embodiment of the present application, the antioxidant is added to prevent oxidation of the cosmetic composition and the skin, and may be used without limitation as long as it is a material commonly used in the cosmetic field. In the present invention, for example, Tocopherol may be used.

In one embodiment of the present application, the dispersant may serve to help emulsify the water phase component in the oil phase component and improve the dispersibility of the oil pigment. At this time, the dispersant is selected from the group consisting of stearalkonium hectorite, disteadimonium hectorite sorbitan sesquioleate, sorbitan isostearate, polyglyceryl-6 polyricinoleate, and combinations thereof. It may include, but is not limited to, substances.

In one embodiment of the present application, the pigment may serve to increase coverage through color development and exert a UV-blocking effect. At this time, the pigment may be a powder pigment, or may be an inorganic powder and/or an organic powder.

At this time, the inorganic powder includes titanium dioxide, iron oxide, zinc oxide, aluminum oxide, magnesium oxide, zirconium oxide, magnesium carbonate, calcium carbonate, carbon black, aluminum silicate, magnesium silicate, magnesium aluminum silicate, mica, talc, silicon carbide, and sulfuric acid. It may include, but is not limited to, a material selected from the group consisting of barium, boron nitride, and combinations thereof.

Additionally, the organic powder may include, but is not limited to, a material selected from the group consisting of nylon powder, acrylic powder, silk powder, crystalline cellulose, N-acyl lysine, tar, and combinations thereof.

In one embodiment of the present application, the powder pigment may be used by treating the surface with a hydrophobizing agent. At this time, the hydrophobizing agent is dimethylpolysiloxane, methylhydropolysiloxane, high-viscosity silicone, crosslinked silicone, fluorine-modified silicone, acrylic-modified silicone, silicone compounds such as silicone resin, perfluoro alkylsilane, anionic surfactant, cationic surfactant, Surfactants such as nonionic surfactants, metal soaps such as zinc laurate and zinc stearate, polyisobutylene, wax, emulsions such as higher fatty acids and higher alcohols, N-acylamino acids, perfluoroalkyl phosphoric acids and salts thereof. , fluorine compounds such as perfluoropolyether, perfluoropolyether alkyl phosphoric acid and salts thereof, polyvinylpyrrolidone-modified polymer, and combinations thereof, but may be limited thereto. It doesn't work.

In one embodiment of the present application, the content of the oil phase component may be 20 to 90 parts by weight, preferably 40 to 50 parts by weight, based on 100 parts by weight of the cosmetic composition. In addition, when the oil component includes a binder and a skin conditioning agent, the content of the binder may be 5 parts by weight to 40 parts by weight, preferably 5 parts by weight to 20 parts by weight, based on 100 parts by weight of the cosmetic composition. there is. In addition, the content of the skin conditioning agent may be 10 to 50 parts by weight, preferably 20 to 40 parts by weight, and more preferably 30 to 35 parts by weight, based on 100 parts by weight of the cosmetic composition. You can.

In one embodiment of the present application, the water-in-oil type cosmetic composition may include an aqueous component.

In one embodiment of the present application, the water-based component may include a substance selected from the group consisting of skin conditioning agents, solvents, viscosity increasing agents, and combinations thereof, and, if necessary, moisturizers, preservatives, flavoring agents, etc. It may further include common ingredients used in cosmetic compositions.

In one embodiment of the present application, the skin conditioning agent may include a substance selected from the group consisting of purified water, butylene glycol, glycerin, pentylene glycol, and combinations thereof. In addition, the solvent may be, for example, 1,2-hexanediol, but is not limited thereto, and the viscosity increasing agent may be, for example, sodium chloride, xanthan gum, ammonium acryloyl dimethyl taurate/ VP copolymer may be used, but is not limited thereto.

In one embodiment of the present application, the content of the water-phase component may be 10 to 80 parts by weight relative to 100 parts by weight of the cosmetic composition, but is not limited thereto, and may be included as the remaining amount in addition to the oil-phase component. .

In one embodiment of the present application, the water-in-oil cosmetic composition may include a first emulsifier as an oil phase component.

In one embodiment of the present application, the first emulsifier is Sorbitan Sesquioleate, Lauryl PEG-8 Dimethicone, and Sorbitan Isostearate. , Polyglyceryl-6 Polyricinoleate, PEG-10 Dimethicone, Cetyl PEG/PPG-10/1 Dimethicone 10/1 Dimethicone), Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone, PEG-9 Polydimethylsiloxyethyl Dimethicone Dimethicone), Lauryl PEG/PPG-18/18 Methicone, PEG/PPG-19/19 Dimethicone , Bis-PEG/PPG-14/14 Dimethicone, PEG/PPG-18/18 Dimethicone , PEG/PPG-20/20 Dimethicone, Polyglyceryl-3 Polydimethylsiloxyethyl Dimethicone, polyglyceryl -Polyglyceryl-4 Isostearate, Sorbitan Isostearate, Polypropylsilsesquioxane, Acrylates/Ethylhexyl Acrylate/Dimethicone Methacrylate Copolymer (Acrylates) /Ethylhexyl Acrylate/Dimethicone Methacrylate Copolymer) and combinations thereof. In addition, according to one embodiment of the present invention, the first emulsifier may preferably include Sorbitan Sesquioleate and Lauryl PEG-8 Dimethicone. .

In one embodiment of the present application, the content of the first emulsifier may be 1 part by weight or more, preferably 1 part by weight to 5 parts by weight, based on 100 parts by weight of the cosmetic composition, an embodiment of the present invention According to , it may be 1 part by weight to 3 parts by weight. At this time, if the content of the first emulsifier is less than 1 part by weight based on 100 parts by weight of the cosmetic composition, a problem of deterioration of emulsion stability may occur.

In one embodiment of the present application, the water-in-oil type cosmetic composition may include a second emulsifier as an oil phase component.

In one embodiment of the present application, the second emulsifier is dimethicone/PEG-10/15 Crosspolymer, cetyl PEG/PEG-10/1 dimethicone ( It may contain a material selected from the group consisting of Cetyl PEG/PPG-10/1 Dimethicone) and combinations thereof, and according to one embodiment of the present invention, dimethicone/PEG-10/15 crosspolymer ( Dimethicone/PEG-10/15 Crosspolymer).

In one embodiment of the present application, the content of the second emulsifier may be 5 parts by weight or less, preferably 0.01 parts by weight to 5 parts by weight, based on 100 parts by weight of the cosmetic composition. An embodiment of the present invention According to , it may be 0.01 part by weight to 1 part by weight. At this time, if the content of the second emulsifier exceeds 5 parts by weight compared to 100 parts by weight of the cosmetic composition, the problem of deterioration of emulsion stability may occur because the content of the first emulsifier is relatively reduced.

In one embodiment of the present application, the weight mixing ratio of the first emulsifier and the second emulsifier may be 3:1 to 10:1. That is, the cosmetic composition according to the present invention may have a content of the first emulsifier greater than the content of the second emulsifier, and when the content ratio of the first emulsifier is less than the above value, the stability of immediate emulsification and reheated emulsification decreases. Problems may arise.

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily implement it. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

Example. Preparation of water-in-oil cosmetic composition

The oil phase containing wax and oil was placed in this kiln and heated and stirred at a temperature of 80°C to 90°C for 15 to 30 minutes to completely dissolve. Additionally, the aqueous phase containing purified water was placed in the preliminary kiln, stirred to homogenize, and then heated to a temperature of 80°C. The heated and stirred aqueous phase was gradually introduced into the main kiln for preliminary emulsification, and then the main emulsification was performed. The degree of emulsification was checked in real time, and if there were no abnormalities, emulsification was terminated. Afterwards, a degassing process was performed and the contents were floated.

Meanwhile, the ingredients and their contents used in the oil phase and water phase portion are shown in Table 1 below.

[Table 1]

Experimental Example 1. Evaluation of properties of water-in-oil cosmetic composition

In order to evaluate the properties of the water-in-oil cosmetic composition prepared in the above example, shear force was applied to the water-in-oil cosmetic composition, and the results are shown in Figures 1 and 2.

As shown in Figure 1, it was confirmed that the cosmetic composition prepared according to the embodiment of the present invention had a solid state, and as shown in Figure 2, when shear force was applied, the water contained therein burst ( It was confirmed that water bursting phenomenon occurred.

Therefore, it was confirmed that the cosmetic composition prepared according to the embodiment of the present invention contained a large amount of water molecules inside.

Experimental Example 2. Performance evaluation of water-in-oil cosmetic composition

In order to evaluate the performance of the water-in-oil cosmetic composition prepared in the above example, the skin temperature was measured before (FIG. 3) and after (FIG. 4) applied the cosmetic composition to the skin, and the results are shown in FIGS. 3 and 4. shown in

As shown in Figures 3 and 4, the skin temperature before applying the cosmetic composition was 31°C, but after application, the skin temperature was 29°C, confirming a decrease in temperature.

This was analyzed as a result of the water contained inside the cosmetic composition bursting, and through this, it was confirmed that the cosmetic composition had the effect of delivering excellent refreshing sensation and moisturizing ingredients to the skin.

Above, the present invention has been described in detail along with preferred embodiments with reference to the drawings, but the scope of the technical idea of the present invention is not limited to these drawings and examples. Accordingly, various modifications or equivalent embodiments may exist within the scope of the technical idea of the present invention. Therefore, the scope of rights of the technical idea according to the present invention should be interpreted in accordance with the claims, and technical ideas within the scope equivalent or equivalent thereto should be interpreted as falling within the scope of the rights of the present invention.

Claims (9)

Oily ingredients; A water-in-oil type cosmetic composition comprising; and an aqueous component,
The oil phase component includes a first emulsifier, a second emulsifier, and wax,
Compared to 100 parts by weight of the cosmetic composition,
The content of the oil component is 20 parts by weight to 90 parts by weight,
The content of the aqueous component is 10 to 80 parts by weight,
The first emulsifier is Sorbitan Sesquioleate and Lauryl PEG-8 Dimethicone,
The second emulsifier is Dimethicone/PEG-10/15 Crosspolymer,
A water-in-oil cosmetic composition wherein the wax is a synthetic wax and microcrystalline wax.
According to paragraph 1,
The water-in-oil cosmetic composition is a water-in-oil cosmetic composition in a solid form.
According to paragraph 1,
A water-in-oil type cosmetic composition wherein the oil phase component further includes a substance selected from the group consisting of skin conditioning agents, antioxidants, dispersants, and combinations thereof.
delete delete According to paragraph 1,
A water-in-oil type cosmetic composition in which the content of the first emulsifier is 1 part by weight or more based on 100 parts by weight of the cosmetic composition.
delete According to paragraph 1,
A water-in-oil type cosmetic composition in which the content of the second emulsifier is 0.01 parts by weight to 1 part by weight based on 100 parts by weight of the cosmetic composition.
According to paragraph 1,
A water-in-oil type cosmetic composition wherein the weight mixing ratio of the first emulsifier and the second emulsifier is 3:1 to 10:1.