TWI762720B - Priming cosmetic composition and method for preparing the same - Google Patents

Abstract

The present specification discloses a priming cosmetic composition and a method for preparing the same. As an embodiment, the cosmetic composition of the present invention, which is a P/O/W type emulsion containing an inner phase, a surfactant, an oil phase and an outer water phase, is produced utilizing a lipophilic surfactant exhibiting high interaction with the oil phase. Hence, the cosmetic composition provides moist feel when being applied as water accounting for the majority of the composition rapidly evaporates and matte finish feel as the powder adsorbing the oil phase controls sweat or sebum at the same time. In addition, the cosmetic of the present invention exhibits a water proof effect as well. Consequently, as an embodiment, the composition of the present invention has an advantage that it can be variously utilized as a unique cosmetic formulation since the sustainability of makeup can be improved by using the cosmetic composition of the present invention before the full-scale base makeup.

Description

Pre-makeup cosmetic composition and preparation method thereof

The present specification discloses a pre-makeup cosmetic composition and a preparation method thereof.

Cosmetics are all commodities used to make an individual's body clean, beautiful, and more attractive, and refer to those with less effect on the human body. Such cosmetic products also include those that are applied, sprayed or similarly applied to the body to maintain healthy skin and hair. In other words, cosmetics are commodities that maintain beauty by properly mixing various components and applying or spraying the mixture to the body to keep the body and hair clean and healthy. Products used for this purpose include products in various forms such as skin toners, milky lotions, creams, essences and foundations associated with color cosmetics.

Among them, color cosmetics are mainly composed of three components: powder-oil-water, which can be classified into base makeup and point makeup according to the composition ratio, formula or purpose of use. Base makeup such as face powder (face makeup) powder, compact, powder foundation, two-way cake, makeup base, liquid foundation and cream foundation, topical Makeup such as eye shadow, powder blush, lipstick, eyeliner and mascara.

These products typically adhere to the skin for about 8 to 12 hours after application, and the cosmetic film that adheres to the skin changes as the skin secretes skin secretions such as sweat and sebum. The changing pattern of the cosmetic layer can occur in various physical forms, such as the cosmetic layer floats, agglomerate of cosmetic particles, somber of cosmetic shade or greasy skin, especially for consumers most of the time. The concern is that when using makeup products, these base makeup products greatly reduce the makeup effect due to the unnatural appearance of the makeup due to the secretion of sebum or sweat after makeup.

Therefore, the inventors of the present application conducted research in order to enhance the durability of foundation makeup and express skin beauty, and found that the P/O/W type emulsion prepared by using lipophilic surfactants would form a skin film, which is due to Moisture evaporates quickly to regulate sweat and sebum and provide moisturization, thus significantly enhancing the durability of foundation makeup to achieve the present invention. [Citation List] [Patent Literature] [Patent Literature 1] KR Patent No. 10-1593531

[technical problem]

In one aspect, an object of the present invention is to provide a pre-makeup cosmetic composition and a preparation method thereof. [Problem solution]

In order to achieve the above object, in one aspect, the present invention provides a cosmetic composition before makeup, which is a powder-in-oil-in-water (P/O/W) type emulsion , which contains an outer water phase, an oil phase, a surfactant and an inner phase, wherein the surfactant is a lipophilic surfactant acting between the outer water phase and the oil phase, and the inner phase contains a powder.

Furthermore, in one aspect, the present invention provides a method for preparing the pre-makeup cosmetic composition, comprising: mixing a powder, an oil, and a lipophilic surfactant; mixing water and a thickening agent mixing; and mixing the individual materials mixed in the above steps. [Benefits of the invention]

As a specific example, the cosmetic composition of the present invention is produced by using a lipophilic surfactant having high interaction with the oil phase, which is a composition comprising an inner phase, a surfactant, an oil phase and an outer water Phase P/O/W emulsion. Therefore, the cosmetic composition provides a moist feeling when applied, due to the rapid evaporation of water, which constitutes the majority of the composition, and a matte feel, due to the powder capable of adsorbing the oil phase while controlling sweat or sebum. In addition, the cosmetic of the present invention also has a waterproof effect. Therefore, as a specific example, since applying the cosmetic composition of the present invention before a full-on base makeup can improve the longevity of the makeup, the advantage of the composition of the present invention is that it can be used as a unique cosmetic formulation for various purposes.

The present invention will be described in detail below.

In one aspect, the present invention provides a pre-makeup cosmetic composition, which is a powder-in-oil-in-water (P/O/W) emulsion containing an outer water phase, an oil phase, a surfactant and an inner phase, The surfactant is a lipophilic surfactant acting between the outer water phase and the oil phase, and the inner phase contains powder.

In this specification, the "pre-makeup cosmetic" is a term defined separately in the present invention, which can be defined as a cosmetic that is applied to the skin after care and before makeup to control sweat or sebum secreted by the skin , and the pre-makeup cosmetic of the present invention will form a thin layer on the skin to improve the longevity of makeup.

In this specification, the "P/O/W type emulsion (powder-in-oil-in-water type emulsion)" is a composite type emulsion, which is a continuous phase containing an aqueous phase to include powder and The emulsion of the P/O (powder in oil) phase of the other phase of the oil, the powder existing inside is called the inner phase and the water phase existing outside is called the outer water phase. At this time, in one embodiment, the outer water phase of the present invention contains a thickening agent so that the inner phase and the oil phase can only be dispersed in the water of the outer water phase by using the lipophilic surfactant agent.

In this specification, the outer aqueous phase may further comprise a thickening agent. Thickeners increase the viscosity of water so that even in the presence of lipophilic surfactants, phase separation of the water phase portion from the oil phase portion is inhibited. Specifically, in one embodiment, the water phase portion does not mix with the oil phase portion, but phase separation occurs when the thickener content is less than 0.6% by weight relative to the total weight of the composition, so The content of the thickener is preferably 0.61% to 2% by weight, more preferably 0.62% to 1% by weight relative to the total weight of the composition, but not limited thereto.

In this specification, the outer aqueous phase represents a portion of the composition of the present invention for providing a moist in-use feel, and constitutes a large proportion of the overall composition. Specifically, the content of the external aqueous phase is 75% by weight or more, 76% by weight or more, 77% by weight or more, 78% by weight or more, 79% by weight or more, 80% by weight or more, relative to the total weight of the composition. Above, 81 wt% or more, 82 wt% or more, 83 wt% or more, 84 wt% or more, 85 wt% or more, 86 wt% or more, 87 wt% or more, 88 wt% or more, 89% by weight or less, 90% by weight or less, 91% by weight or less, 92% by weight or less, 93% by weight or less, 94% by weight or less, or 95% by weight or less, and its content is relative to the composition The total weight is preferably 75 to 95% by weight, but not limited thereto.

In this specification, the "oil phase" is referred to as an "oil phase", which is a material that is hardly mixed with water, which may be an oil, an organic solvent or a mixture thereof (at room temperature and atmospheric pressure) liquid), but not limited to this. The oil phase content may be 0.01 wt% or more, 0.03 wt% or more, 0.05 wt% or more, 0.07 wt% or more, 0.09 wt% or more, 0.1 wt% or more, 0.2 wt% or more relative to the total weight of the composition wt% or more, 0.3 wt% or less, 0.4 wt% or less, 0.5 wt% or less, 0.6 wt% or less, 0.7 wt% or less, 0.8 wt% or less, 0.9 wt% or less, or 1.0 wt% or less, the content thereof may be preferably 0.01 to 1.0 wt %, more preferably 0.1 to 0.5 wt %, but not limited thereto.

In this specification, the "surfactant" is also referred to as a surface active agent, which refers to a material that adsorbs on an interface to reduce surface tension in a dilute solution. In one embodiment, the surfactant of the present invention is a lipophilic surfactant. The lipophilic surfactant, also known as a W/O type surfactant, exists at the interface between the water phase and the oil phase, and the force for maintaining the water phase is weaker than the force for maintaining the oil phase. Therefore, the composition of the present invention uses a lipophilic surfactant instead of the hydrophilic surfactant of one embodiment, which induces rapid evaporation of water and provides a moist feeling during use, and the powder left after the evaporation of water is partially on the skin surface Forms a thin layer that absorbs or absorbs sweat or sebum. It can be seen from the following experimental example 2 that the composition prepared by adding the hydrophilic surfactant cannot achieve the purpose of the present invention, because it exhibits a slightly sticky feeling rather than a matte feeling after use.

In this specification, the lipophilic surfactant may be, for example, sorbitan monoisostearate, sorbitan diisostearate, sorbitan sesquistearate Isostearate (sorbitan sesquiisostearate), sorbitan monooleate (sorbitan monooleate), sorbitan dioleate (sorbitan dioleate), sorbitan sesquioleate (sorbitan sesquioleate), Glyceryl monoisostearate (glyceryl monoisostearate), glyceryl diisostearate (glyceryl diisostearate), glyceryl sesquiisostearate (glyceryl sesquiisostearate), glyceryl monooleate (glyceryl monooleate), dioleic acid Glyceryl dioleate, glyceryl sesquioleate, diglyceryl diisostearate, diglyceryl dioleate, diglyceryl monoisostearyl ether (diglycerin monoisostearyl ether) or diglycerin diisostearyl ether (diglycerin diisostearyl ether), preferably sorbitan monoisostearate, but not limited thereto.

In this specification, the lipophilic surfactant content may be 0.5 wt% or more, 0.7 wt% or more, 0.8 wt% or more, 0.9 wt% or more, 1 wt% or more with respect to the total weight of the composition , 1.1 wt % or more, 1.3 wt % or less, 1.4 wt % or less, 1.5 wt % or less, or 1.6 wt % or less, the content thereof may preferably be 0.8 to 1.6 wt %, more preferably 1 to 1.4 wt % %, but not limited to this.

In this specification, the internal phase is a material that exists in the oil phase and contains powder. The 'powder' refers to a powder and a cosmetic powder, and the powder described in this specification in the inner phase may include a flake powder and a spherical powder.

In this specification, the spherical powder may be polydimethylsiloxane/vinyl dimethicone copolymer*silica (dimethicone/vinyl dimethicone copolymer*silica), vinyl polydimethylsiloxane Siloxane/polymethylsiloxane silsesquioxane copolymer (vinyl dimethicone/methicone silsesquioxane copolymer), polymethyl methacrylate (polymethyl methacrylate, PMMA), polymethylsilsesquioxane (polymethylsilsesquioxane, PMSQ), Nylon or Polyurethane, which may preferably be Dimethicone/Vinyl Dimethicone Copolymer*Silicon Oxide or Vinyl Dimethicone/Polymethicone Oxane silsesquioxane copolymer, but not limited thereto. Specifically, in one embodiment, the hydrophilic polydimethylsiloxane/vinyldimethylsiloxane copolymer* silica and the lipophilic vinyldimethylsiloxane/polymethylsiloxane The oxane silsesquioxane copolymers each absorb sweat and absorb sebum to create a matte finish on oily skin surfaces. Therefore, the spherical powder may be composed of a hydrophilic spherical powder and a lipophilic powder.

In this specification, the spherical powder may have pores, while the pores refer to structural pores that are usually formed during the preparation of the powder and have nano size to macro size. In addition, in a specific embodiment, the spherical powder of the present invention has various pore structures according to the manufacturing method, and has an oil absorption capacity of 0.30 to 1.50 cc/g, but not limited thereto.

In this specification, the flake powder may be synthetic fluorphlogopite*triethoxycaprylsilane, mica, sericite, barium sulfate, boron nitride, alumina or talc, which are preferably For the synthesis of fluorophlogopite*triethoxyoctylsilane, but not limited thereto.

In the present invention, the content of the flake powder may be 50 parts by weight or more, 52 parts by weight or more, 54 parts by weight or more, 56 parts by weight or more, 58 parts by weight relative to 100 parts by weight of the spherical powder parts by weight or more, 60 parts by weight or more, 61 parts by weight or more, 62 parts by weight or more, 63 parts by weight or more, 64 parts by weight or more, 65 parts by weight or more, 66 parts by weight or more, 67 parts by weight or More, 68 parts by weight or more, 69 parts by weight or more, 70 parts by weight or more, 71 parts by weight or more, 72 parts by weight or less, 73 parts by weight or less, 74 parts by weight or less, 75 parts by weight or less, 76 parts by weight or less, 77 parts by weight or less, 78 parts by weight or less, 79 parts by weight or less, 80 parts by weight or less, 81 parts by weight or less, 83 parts by weight or less, 85 parts by weight or less, 87 parts by weight parts by weight or less, 89 parts by weight or less, 91 parts by weight or less, 93 parts by weight or less, 95 parts by weight or less, 98 parts by weight or less, or 100 parts by weight or less, preferably 50 to 100 parts by weight parts, more preferably 65 to 85 parts by weight, but not limited thereto.

Therefore, the powder content may be 7 wt% or more, 8 wt% or more, 9 wt% or more, 10 wt% relative to the total weight of the composition including the porous powder or the flake powder or less, 11 wt % or less, or 12 wt % or less, it may preferably be 7 to 12 wt %, more preferably 8 to 11 wt %, but not limited thereto.

In a specific embodiment, the composition is a cosmetic composition, which may further include conventional auxiliary materials (such as preservatives, antioxidants, stabilizers) in addition to the outer water phase, oil phase, surfactant and inner phase. , solubilizers, vitamins and fragrances) and carriers, which are commonly used in cosmetic compositions. For example, the composition may further comprise auxiliary components such as glycerin, butylene glycol, polyoxyethylene hardened castor oil, tocopheryl acetate, citric acid, panthenol , squalane, sodium citrate and allantoin.

Furthermore, in one aspect, the present invention provides a method for preparing the pre-makeup cosmetic composition, comprising: mixing a powder, an oil, and a lipophilic surfactant; mixing water and a thickening agent mixing; and mixing the individual materials mixed in the above steps.

In this specification, the oil and the lipophilic surfactant can be adsorbed on the surface of the powder through the steps of mixing a powder, an oil and a lipophilic surfactant. Therefore, this step may be expressed as a step of adsorbing the oil and the lipophilic surfactant on the powder, but is not limited thereto.

In this specification, the viscosity of water can be increased by the step of mixing water and a thickening agent, so that the material of mixing a powder, an oil and a lipophilic surfactant can be stabilized without There is a large degree of phase separation from water.

In view of the complexity of this specification, redundant content is omitted, and terms not otherwise defined herein have meanings commonly used in the art to which the present invention pertains.

In order to facilitate understanding of the present invention, the present invention will be described in detail below with reference to Examples and Experimental Examples. The following examples and experimental examples are only used to illustrate the present invention, and are not intended to limit the scope of the present invention.

Examples 1 to 5. Preparation of Cosmetics with Flake Powder and Spherical Powder in Different Proportions

Cosmetics of Examples 1 to 5 were prepared by mixing the components in the compositions shown in Tables 1 and 2 below (unit: % by weight). At this time, the ingredients listed in Table 1 and the ingredients listed in Table 2 were mixed in a ratio of 1:8.

Specifically, the flake powder of Aerosil R202, Tr-2 AS, the spherical powder of dc9701 and KSP-101 were added to the Henschel mixer and mixed together for 2 minutes. Then, Dermofeel BGC oil, Crill 6 lipophilic surfactant, and fragrance were sprayed onto the mixed powder, and the mixture was mixed for a further 2 minutes using a Henschel mixer. Subsequently, the liquid phase portion was added to the mixed batch, and the mixture was stirred for 10 minutes using a homomixer. At this point, the liquid phase portion is a dispersed liquid phase material, which is prepared by adding together all the ingredients described in Table 2 below (ie, water, makimousse thickener and ethanol) and stirring for 15 minutes.

[表2] 水相部分及增稠劑

A series of processes were carried out at room temperature to prepare the cosmetics of Examples 1 to 5. [Table 1] Parts of powder, surfactant and oil phase

[Table 2] Water phase part and thickener

Examples 6 to 8. Preparation of Cosmetics Containing Hydrophilic Surfactant

The compositions shown in Table 2 above and Table 3 below were mixed to prepare cosmetics of Examples 6 to 8 (unit: % by weight). At this time, the ingredients listed in Table 3 and the ingredients listed in Table 2 were mixed in a ratio of 1:8.

Specifically, Examples 6 to 8 were prepared in the same manner as the production methods of Examples 1 to 5, except that the hydrophilic surfactant Tween 60 was further added in the step of adding the lipophilic surfactant Crill 6. [Table 3] Parts of powder, surfactant and oil phase

Example 9. Preparation of cosmetic products containing preservatives

The cosmetic of Example 9 was prepared by the composition shown in Table 4 below (unit: % by weight). Specifically, the flake powder of Aerosil R202, Tr-2 AS, the spherical powder of dc9701 and KSP-101 were added to the Henschel mixer and mixed together for 2 minutes. Then, Dermofeel BGC oil, Crill 6 lipophilic surfactant, fragrance and Senciva sc 50 and Dermosoft GMCY preservative oils were sprayed onto the mixed powder and the mixture was mixed for a further 2 minutes using a Henschel mixer. The mixture and makimousse thickener were added to the agi mixer and mixed for 15 minutes.

Thereafter, all of the water and alcohol in the remaining aqueous phase portion shown in Table 4 were added thereto, and the mixture was further stirred for 5 minutes. The series of processes are carried out at room temperature. As a result, the cosmetic of Example 9 was prepared. [Table 4]

Experimental Example 1. Confirmation of the change in use feeling of the composition of the present invention according to the ratio of flake powder to spherical powder

The cosmetic compositions of Examples 1 to 5 prepared by changing the content ratio of the tablet-like powder to the spherical powder were thinly applied to the front and back of the subject's hand in an amount of 0.5 ml. , and compare their usability with each other.

As a result, in the case of Example 1 in which the ratio of the flake powder was relatively high, dead skin cells were wiped off when the cosmetic was applied to the skin. However, it was confirmed that the wiping off of dead skin cells decreased in the order of Examples 2, 3 and 4 prepared by gradually reducing the amount of the flake powder. In particular, the cosmetic composition of Example 4 was Spread widely to moisturise the skin and provide optimal use, and absorb a certain amount into the skin to provide a matte finish. Meanwhile, in the case of Example 5 (the amount of the spherical powder was higher than that of Example 4), it was confirmed that the powder fell off after applying the cosmetic and the feeling of use was slightly poor.

This shows that when the ratio of the weight of the flake powder to the total weight of the spherical powder is 0.3 to 1, the cosmetic of the present invention has the best expandability.

Experimental Example 2. Addition of Hydrophilic Surfactant to Confirm Changes in Use Feeling of the Composition of the Invention

Thinly apply 0.5 ml of the cosmetic compositions of Examples 6 to 8 on the face and back of the hands of an individual, and compare the usage sensations with each other, wherein the cosmetic compositions were prepared containing a hydrophilic surfactant in addition to the lipophilic surfactant.

The results confirmed that the haze feeling disappeared when a hydrophilic surfactant was added to produce a thick and sticky feeling, and it was confirmed that the viscosity was maximized when the amount of the hydrophilic surfactant was increased. In other words, as a specific example, it was confirmed that the addition of a hydrophilic surfactant reduces the effect of the present invention, which is to reduce the stickiness caused by sweat and sebum (ie, haze).

Specifically, unlike the case where hydrophilic surfactants are used to make basic moisturizing products for generating wetness of hydrophilic formulations, in one embodiment, the emulsions of the present invention are P/O/W type formulations, which need to provide The matte feeling is used to control the secretion and wettability of sebum or sweat, so it is proved that the use of hydrophilic surfactants is difficult to achieve the desired purpose. This indicates that the cosmetic composition of the present invention with a P/O/W formula is a unique cosmetic formulation using a lipophilic surfactant, which can provide moisturizing and matte feeling at the same time.

To sum up, as a specific embodiment, the cosmetic composition of the present invention (which is a P/O/W emulsion containing an inner phase, a surfactant, an oil phase and an outer water phase) is used with the oil phase. Produced from highly interactive lipophilic surfactants. Therefore, when applying the cosmetic composition, a moist feeling is provided due to the rapid evaporation of moisture which accounts for the majority of the composition, and a matte feeling is provided due to the powder capable of adsorbing the oil phase while controlling sweat or sebum. In addition, the cosmetic of the present invention also has a waterproof effect. Thus, as a specific example, since application of the cosmetic composition of the present invention prior to full base makeup improves makeup hold, the composition of the present invention is advantageously available as a unique cosmetic formulation for various applications.

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Claims (10)

A pre-makeup cosmetic composition, wherein the pre-makeup cosmetic composition is a P/O/W type emulsion (powder-in-oil-in-water type emulsion), which comprises an external an aqueous phase, an oil phase, a surfactant and an inner phase, the surfactant is a lipophilic surfactant acting between the outer aqueous phase and the oil phase, and the inner phase contains a powder body; wherein the powder includes spherical powder and flake powder, and wherein the weight ratio of the flake powder to the spherical powder is greater than 0.5 to less than 2. The composition of claim 1, wherein the outer aqueous phase contains a thickening agent. The composition of claim 2, wherein the content of the thickener is from 0.61% to 2% by weight. The composition of claim 1, wherein the content of the external aqueous phase is from 75% to 95% by weight relative to the total weight of the composition. The composition of claim 1, wherein the content of the oil phase is from 0.01% to 1% by weight relative to the total weight of the composition. The composition of claim 1, wherein the lipophilic surfactant is one or more selected from the group consisting of: sorbitan monoisostearate, sorbitan diisostearate Fatty acid ester, sorbitan sesquiisostearate, sorbitan monooleate, sorbitan dioleate, sorbitan sesquioleate, glycerol monoisostearate Esters, Glyceryl Diisostearate, Sesquito Glyceryl isostearate, Glyceryl monooleate, Glyceryl dioleate, Glycerol sesquioleate, Glyceryl diisostearate, Glyceryl dioleate, Glyceryl dioleate, Glyceryl diglycerol monoisostearyl ether , and diglycerol diisostearyl ether. The composition of claim 1, wherein the content of the lipophilic surfactant is from 0.8% to 1.6% by weight relative to the total weight of the composition. The composition of claim 1, wherein the spherical powder system is one or more selected from the group consisting of: polydimethylsiloxane/vinyl polydimethylsiloxane copolymer *Silicon oxide, vinyl polydimethylsiloxane/polymethylsiloxane silsesquioxane copolymer, polymethyl methacrylate (PMMA), polymethylsilsesquioxane (PMSQ), Nylon, and Polyurethane. The composition of claim 1, wherein the content of the powder is from 7% to 12% by weight relative to the total weight of the composition. A method for preparing a pre-makeup cosmetic composition as claimed in claim 1, the method comprising: mixing a powder, an oil and a lipophilic surfactant; mixing water and a thickening agent; and mixing the above steps Mix the individual materials mixed in.