KR20150110177A - Solid cosmetic composition - Google Patents

Abstract

The present invention relates to a solid cosmetic composition. The present invention provides a solid cosmetic composition, comprising synthetic wax, carnauba wax, and candelilla wax, which comprises: a wax mixture with the mixing weight ratio of synthetic wax, carnauba wax, and candelilla wax of 60-85 : 14-30 : 1-10; oil; and a pigment. The solid cosmetic composition of the present invention has excellent solid-phase forming capacity, stability, and application.

Description

Solid cosmetic composition < RTI ID = 0.0 >

The present invention relates to a solid cosmetic composition. More particularly, the present invention relates to a solid cosmetic composition which is excellent in stability and has a wax matrix of large size and large size, and is easily transferred to a liquid phase, .

The solid cosmetic composition is generally composed of a false portion and a powder portion. Generally, the solid cosmetic composition is prepared by dispersing a powder portion in a false portion and then heating it to impart its usefulness, and then solidifying it on a plate or stick. The solid cosmetic composition thus prepared is widely used because it has good skin coverage, good coverage against skin imperfections, and has the advantage of forming a cosmetic film having excellent water repellency, as compared with powder cosmetic compositions.

The solid cosmetic composition is composed of a false portion and a powder portion due to the nature of the formulation. In order to ensure the high temperature fluidity required for production, the oil portion should be contained in a certain amount or more. However, when a large amount of oil is contained, the cosmetic film easily disintegrates due to the sebum secreted from the face, and the sebum secreted from the face is liable to adhere to the air. Therefore, May cause eczema or inflammation.

Accordingly, in order to solve such a disadvantage, Korean Patent Laid-Open Nos. 2003-0050532 and 2003-0008766 disclose new cosmetic formulations for improving the flowability during molding while containing a large amount of powder part.

Korean Patent Laid-Open Publication No. 2003-0011877 discloses a cosmetic formulation for reducing the occurrence of skin troubles.

However, these conventional studies are concerned with the development of formulations according to the characteristics of cosmetics, and there is little research on improvement of spreadability due to changes in surface characteristics of solid cosmetics.

Until now, the spreadability of solid cosmetics depends greatly on the hardness of the hardness. Cosmetics having high hardness have much use amount of wax, resulting in poor durability and a feeling of stiff feeling. The cosmetics having low hardness are excellent in spreadability. However, There is a problem that the stability of the cosmetic product is deteriorated such as that it is exuded to the outside of the cosmetic product or the content flows down at a high temperature.

Therefore, it is urgent to develop a technique for securing stability and spreadability in a solid cosmetic composition.

Accordingly, a problem to be solved by the present invention is to provide a solid cosmetic composition which not only secures both stability and spreadability, but also excellent overall feeling such as moistness, adhesion, and cosmetic finish.

In order to solve the above problems, the present invention provides a wax composition comprising a synthetic wax, a carnauba wax and a candelilla wax, wherein the blend weight ratio of the synthetic wax is: carnauba wax: candelilla wax = 60 to 85:14 to 30: 1 to 10 wax mixture; oil; And a pigment.

Depending on the shape of the wax matrix structure, thickening of the wax matrix wall improves the stability of the cosmetic material as the hardness thereof increases, and when the wax matrix is large and wider, the shear-thinning becomes greater and the spreadability is improved. Accordingly, the solid cosmetic composition of the present invention is a wax composition containing wax mixture (hereinafter referred to as "SCC wax") containing synthetic wax, carnauba wax and candelilla wax at a specific weight ratio as described above, oil and pigment The wall of the wax matrix is thick and the size thereof is large and wide so that the stability and the spreadability can be maintained to be excellent.

The solid cosmetic composition of the present invention may contain, for example, waxes, oils and pigments in an amount of 1 to 10 parts by weight of wax, 20 to 70 parts by weight of oil and 10 to 50 parts by weight of pigment, based on 100 parts by weight of the solid cosmetic composition However, the present invention is not limited thereto.

The solid cosmetic composition of the present invention can be used alone or in combination with two or more kinds of waxes such as candelilla wax, carnauba wax, rice wax, beeswax, lanolin, ozokerite, ceresin wax, paraffin wax, microcrystalline wax, Or more.

Hereinafter, the present invention will be described in detail. The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

The solid cosmetic composition of the present invention is characterized by containing a SCC wax having a weight ratio of synthetic wax: carnauba wax: candelilla wax of 60 to 85: 14 to 30: 1 to 10.

In a solid cosmetic composition comprising three components of an oil-wax-pigment, the stability and spreadability depend on the surface rheological properties of the wax matrix constituting the solid cosmetic composition. Shear-thinning, one of the characteristics of surface rheology, is an objective measurement for judging the durability of solid cosmetics. Generally, cosmetic composition having a high shear thinning is very soft and excellent, whereas shear thinning is low In the case of a cosmetic composition which is scarcely present, the spreadability is stiff or greatly deteriorated. Such shearing thinning generally has a tendency to occur largely in a product having a high hardness and in a product having a low hardness because the wax matrix is formed strongly and the wax matrix is formed weakly.

However, as described above, when the solid cosmetic material is produced so that the wax matrix is weakened to improve the spreadability of the solid cosmetic material, the oil is swelled outwardly according to changes in the external temperature, And so on.

In this regard, the inventors of the present invention disclose through the present application that the wall thickness of the wax matrix of the solid cosmetic composition is highly related to the hardness strength and stability and the size of the wax matrix is related to shear-thinning. That is, the solid cosmetic composition having a thicker wall thickness of the wax matrix has a higher hardness and better stability, and a solid cosmetic composition having a wax matrix of a larger size and wider shape has a greater shearing action and a better spreadability.

However, a typical solid cosmetic composition shows a tendency to form a small and dense wax matrix when it is formed thick, and when the wax matrix is formed thin, its size tends to be similar or somewhat larger.

Therefore, according to the present invention, the synthetic wax, carnauba wax and candelilla wax are mixed with the SCC wax mixed at a weight ratio of synthetic wax: canna wax: candelilla wax = 60: 85: 14 to 30: To thereby produce a solid cosmetic composition in which the wax matrix is thick and the size thereof is large and wide. That is, the solid cosmetic composition of the present invention has a high hardness due to a thick wax matrix, and is excellent in stability. Even though the wax matrix is thick, the size of the wax matrix is large and wide so that shearing fatigue is greatly increased.

The content of the SCC wax according to the present invention may be variously determined depending on the use of the cosmetic material or the condition of the user. For example, 1 to 10 parts by weight, preferably 2 to 8 parts by weight, based on 100 parts by weight of the solid cosmetic composition But is not limited thereto. When the content is less than 1 part by weight, the hardness may be lowered and the stability may be greatly deteriorated. If the content is more than 10 parts by weight, the hardness may be too high and the spreadability may be greatly deteriorated regardless of the structure of the wax matrix.

Examples of the oil that can be included in the solid cosmetic composition of the present invention include those conventionally used in the art without limitation, and examples thereof include cetyl ethyl hexanoate, neopentyl glycol dicaprate, isocetyl ethyl hexanoate, But are not limited to, stearic acid, laurate, laurate, laurate, laurate, laurate, laurate, laurate, laurate, laurate, laurate, laurate, laurate, , Methyltrimethicone, phenyltrimethicone, mechicone, dimethicone, cyclomethicone, liquid lanolin, olive oil, avocado oil, jojoba oil, macadamia oil, etc. may be used singly or in combination of two or more thereof .

The content of the oil according to the present invention may be variously determined depending on the use of the cosmetic and the condition of the user, and may be, for example, 20 to 70 parts by weight based on 100 parts by weight of the solid cosmetic composition, but is not limited thereto. When the content is less than 20 parts by weight, fluidity may be deteriorated and moldability may be deteriorated. If the content is more than 70 parts by weight, moldability is good, but the ability to form a cake is poor and oily feeling may be increased due to a large amount of oil.

Examples of the pigment that can be included in the solid cosmetic composition of the present invention include those conventionally used in the art without limitation, and examples thereof include titanium dioxide, titanium dioxide fine particles, zinc oxide, iron oxide, titanium dioxide zinc oxide complex, alumina, talc Clay mineral powders such as mica, kaolin, barium silicate, zeolite, muscovite, synthetic mica and magnesium carbonate, inorganic pigments such as barium sulfate, iron titanate and titanium oxide coated mica, polystyrene powder, polymethyl methacrylate powder, polyethylene powder , Nylon powder, silicone powder, urethane-based powder and the like may be used alone or as a mixture of two or more thereof, but the present invention is not limited thereto.

The pigment powder may be used after hydrophobic treatment. Examples of the hydrophobic treatment method include a method of treating with a high viscosity silicone, an alkyl hydrogen polysiloxane, a cationic, anionic or nonionic surfactant, or a method of coating the surface with a wax have.

The content of the pigment according to the present invention may be variously determined depending on the use of the cosmetic and the condition of the user, and may be, for example, 10 to 50 parts by weight based on 100 parts by weight of the solid cosmetic composition, but is not limited thereto. If the content is less than 10 parts by weight, the cosmetic effect may be lowered or the use may be deteriorated due to a large amount of oil. If the content is more than 50 parts by weight, the flowability may be sharply dropped and the formability may be deteriorated.

The solid cosmetic composition of the present invention may further include wax components commonly used in accordance with necessity in addition to the SCC wax. Examples of the wax component include candelilla wax, carnauba wax, rice wax, beeswax, lanolin, Wax, ceresin wax, paraffin wax, microcrystalline wax, polyethylene wax, etc. may be used alone or in combination of two or more.

In the solid cosmetic composition of the present invention, an additive such as a flavor, dye, preservative and the like commonly used in a solid cosmetic composition can be added in an appropriate amount if necessary.

The SCC wax according to the present invention is characterized in that the wall of the wax matrix is thick and the size is large and wide, unlike the general wax, so that the SCC wax is excellent in stability due to high hardness and excellent in spreadability It is possible to provide a solid cosmetic composition excellent in overall feeling such as moistness, adhesion, and cosmetic finish.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments of the invention and, together with the description of the invention, It should not be construed as limited.
1 is a SEM photograph of an SCC gel according to the present invention.
2 is a SEM photograph of a conventional ceresin gel.
FIG. 3 is a graph showing changes in storage modulus according to shear deformation of SCC gel and ceresin gel.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to examples. However, the embodiments according to the present invention can be modified into various other forms, and the scope of the present invention should not be construed as being limited to the embodiments described below. The embodiments of the present invention are provided to enable those skilled in the art to more fully understand the present invention.

Example  1 to 2 and Comparative Example  1-2

According to the composition (unit: g) shown in the following Table 1, Example 1 was prepared by heating raw materials 1 to 6 and 8, which are oil phase components, at 80 to 85 ° C and dissolving them, then adding the pigments and uniformly dispersing them. This mixture was defoamed and filled in a plate molder and cooled at room temperature to prepare a solid cosmetic composition.

Example 2 and Comparative Examples 1 and 2 were prepared in the same manner as in Example 1 with reference to the composition shown in Table 1 below. Molding was carried out in a dish molder in Example 1 and Comparative Example 1, Was filled in a stick molder and then cooled at room temperature to prepare a solid cosmetic composition.

Raw material name Example Comparative Example One 2 One 2 One SCC wax
(Smartwax 7743s ™, Japan natural product) 2.5 6.0 - - 2 Ceresin wax - - 5.0 10.5 3 Sorbitan sesquioleate 1.0 1.0 1.0 1.0 4 Neopentyl glycol dicaprate 20.0 20.0 20.0 20.0 5 Dimethicone 2.0 2.0 2.0 2.0 6 antiseptic 0.05 0.05 0.05 0.05 7 Pigment (urethane-based powder) 40.0 40.0 40.0 40.0 8 Butylene glycol dicaprylate
/ Dicaprate To 100

Experimental Example

One. Shear thinning  motion

Using the ceresin wax generally used and the SCC wax according to the present invention, an oil-wax two-component solid product was prepared with the composition shown in Table 2 below. Shear thinning behaviors of wax matrix and shear deformation were observed through SEM.

Raw material name SCC gel Ceresin gel SCC wax
(Smartwax 7743s ™, Japan natural product) 10.0 g - Ceresin wax - 10.0 g Butylene glycol dicaprylate
/ Dicaprate 90.0 g 90.0 g

The oil and wax were heated to 80 to 85 ° C according to the composition (unit: g) shown in Table 2 to uniformly dissolve the mixture. The mixture was defoamed, filled in a plate molder, and cooled at room temperature to prepare an oil-wax gel .

An SEM photograph of the wax matrix of the SCC gel using SCC wax is shown in Fig. 1, and an SEM photograph of the wax matrix of ceresin gel using the waxy ceresin wax is shown in Fig. In addition, the change of the storage modulus according to the shear deformation of the SCC gel and the ceresin gel was measured and shown in Fig.

As shown in FIGS. 1, 2 and 3, the SCC gel is thicker than ceresin gel, and is larger and wider in size. Even though the hardness is high, the solid surface is suddenly collapsed into liquid phase It can be seen that the shear-thinning behavior is large.

2. Hardness, perspiration and Feeling  evaluation

The physical properties of the solid cosmetic compositions obtained in Examples 1 and 2 and Comparative Examples 1 and 2 were measured and the degree of sweating was evaluated according to the temperature change. The overall feel (wetting, moisturizing, adhesion and cosmetic finish) 40 women aged 45 years were evaluated.

(1) Hardness measurement

The compressed hardness of the SCC gel and the ceresin gel molded in the dish and the compressive hardness of Example 1 and Comparative Example 1 were measured with adapter # 3 using a Fudoh Rheometer. In Example 2 and Comparative Example 2 molded into a stick, And the measurement results are shown in Table 3 below. Hardness is the average measured three times.

Item SCC gel Ceresin gel Example 1 Example 2 Comparative Example 1 Comparative Example 2 Hardness 2360 1145 1320 128 1050 111

(2) Evaluation of sweating phenomenon occurrence

In order to examine the sweating degree of the SCC gel and the oil-wax gel of ceresin gel, the solid cosmetic compositions of Examples 1 to 2 and Comparative Examples 1 and 2, the temperature was raised to the temperature shown in Table 3 below, And evaluated according to the visual evaluation criteria. The evaluation results are shown in Table 4 below.

<Visual Evaluation Criteria>

Very poor (very severe sweating): 1, poor (severe sweating): 2, good (fine sweating): 3, very good (no sweating): 4

Item SCC gel Ceresin gel Example 1 Example 2 Comparative Example 1 Comparative Example 2 50 ℃ 4 One 4 4 2 2 45 ° C 4 One 4 4 3 3 37 ℃ 4 3 4 4 4 4 Room temperature 4 4 4 4 4 4

(3) Feeling  evaluation

Forty women aged 25-45 years were divided into two groups and used for both sides of the face by appropriately adjusting the examples 1 and 2 and the comparative examples 1 and 2 for each group, and then, according to the following evaluation criteria, Feeling of adhesion, and feel of finish of make-up were evaluated, and the results are shown in Table 5.

<Evaluation Criteria>

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

Item Example 1 Example 2 Comparative Example 1 Comparative Example 2 Brittle 4.8 4.7 2.7 3.3 Moistness 4.2 3.9 3.7 3.5. A sense of closeness 4.0 4.5 3.9 3.6 Makeup finish 4.4 4.6 3.1 3.3

As shown in Tables 3 to 5, the use of SCC wax in Examples 1 to 2 and Comparative Examples 1 and 2 according to the present invention shows a relatively high hardness and is more stable even in a sweating phenomenon due to external temperature change, The evaluation results of the feeling of use showed excellent feeling on the whole, and it shows excellent characteristics in the spreadability and make-up finish feeling.

These results show that the wax matrix of the oil-wax gel using the SCC wax is thicker and wider and wider than the wax matrix of the ceresin gel as shown in Fig. 2, The shear-thinning phenomenon in which the surface of the solid phase is suddenly collapsed due to the sudden collapse of the solid surface during the deformation is remarkably caused, so that the solid cosmetic composition can be seen to exhibit such characteristics and greatly improve the spreadability.

Claims (6)

Wax mixture comprising synthetic wax, carnauba wax and candelilla wax, the weight ratio of which is synthetic wax: carnauba wax: candelilla wax = 60 to 85:14 to 30: 1 to 10;
oil; And
A solid cosmetic composition comprising a pigment. The method according to claim 1,
Wherein the oil is selected from the group consisting of cetyl ethyl hexanoate, neopentyl glycol dicaprate, isocetyl ethyl hexanoate, distearyl salicylate, triethylhexanone, squalane, caprylic capric triglyceride, pentaerythritol tetraethyl hexanoate, But are not limited to, butylene glycol dicaprylate caprate, hexylureate, dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, methyltrimethicone, phenyltrimethicone, methicone, dimethicone, cyclomethicone, liquid lanolin, Avocado oil, jojoba oil, and macadamia oil, or a mixture of two or more thereof. The method according to claim 1,
The pigment may be selected from the group consisting of titanium dioxide, zinc oxide, iron oxide, titanium dioxide zinc oxide complex, alumina, talc, mica, kaolin, barium silicate, zeolite, muscovite, synthetic mica, magnesium carbonate, barium sulfate, Wherein the powder is selected from the group consisting of powder, polymethyl methacrylate powder, polyethylene powder, nylon powder, silicone powder and urethane powder, or a mixture of two or more thereof. The method of claim 3,
Wherein the pigment is hydrophobically treated. The method according to claim 1,
Wherein the content of the wax mixture, oil, and pigment is 1 to 10 parts by weight of wax, 20 to 70 parts by weight of oil, and 10 to 50 parts by weight of pigment, based on 100 parts by weight of the solid cosmetic composition. 6. The method according to any one of claims 1 to 5,
Wherein the wax mixture is selected from the group consisting of candelilla wax, carnauba wax, rice wax, beeswax, lanolin, ozokerite, ceresin wax, paraffin wax, microcrystalline wax and polyethylene wax, Or a mixture thereof.

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