KR102130356B1 - Cosmetic composition for lip makeup with high temperature stability - Google Patents

Abstract

It relates to a lip makeup cosmetic composition comprising rice bran wax and plate-shaped powder. The cosmetic composition according to one aspect has high temperature stability by including rice bran wax and plate-like powder, and has excellent lip coverage, color persistence, spreadability, and adhesion, and thus can be used as a cosmetic for lip makeup.

Description

{Cosmetic composition for lip makeup with high temperature stability}

It relates to a lip makeup cosmetic composition.

There are various types of cosmetics for lip makeup, such as lipstick, lip gloss, lip tint, and lip locker. Cosmetic products for lip makeup have been developed in consideration of color development, spreadability, durability, adhesion, coverage, and formulation, and recently, a liquid type light formulation with high color development is preferred in Korea.

However, the existing liquid type lip makeup cosmetic has a problem of poor stability at high temperature by using a low-viscosity oil, and there is a limitation that the color is stained and spread because it is thinly applied when applied.

Therefore, there is a need to develop a lip makeup cosmetic composition that has excellent high temperature stability, maintains liquid spreadability, and has excellent makeup functions such as adhesion and coverage.

One aspect provides a lip makeup cosmetic composition excellent in high temperature stability by including rice bran wax and plate-shaped powder, and excellent in lip coverage, color persistence, spreadability and adhesion.

One aspect provides a lip makeup cosmetic composition comprising rice bran wax and plate-shaped powder.

The cosmetic composition includes rice bran wax and plate-like powder, and thus has high temperature stability and excellent skin (eg, lips) coverage and color lasting. Excellent high temperature stability may mean that the components in the composition are not separated at high temperature and the formulation is well maintained. The skin covering power may mean an ability to cover skin blemishes and the like. The color lasting power may mean the degree to which the color of the lip makeup is well maintained because the color of the lip makeup becomes pale or disappears over time. In addition, the cosmetic composition includes rice bran wax and plate-like powder together, and thus has excellent spreadability and adhesion compared to the case where only one of the two is included. The excellent spreadability may mean that the cosmetic composition is lightly applied or evenly applied when applied to the lips. The excellent adhesion may mean that the degree of adhesion to the lips is high by applying a cosmetic composition to the lips thinly.

The term "high temperature" can mean a temperature that is relatively higher than room temperature. For example, in this specification, “high temperature” may mean a temperature of 30° C. or higher.

The term "room temperature" can have a conventional meaning and can mean, for example, 20 to 30°C.

The "rice bran wax (Oryza Sativa (Rice) Bran Wax)" means a wax obtained by separating and purifying rice and rice bran oil ( Oryza sativa ).

The cosmetic composition is rice bran wax 0.5 to 3.0% by weight, 0.5 to 2.5% by weight, 0.5 to 2.0% by weight, 1.0 to 3.0% by weight, 1.0 to 2.5% by weight, 1.0 to 2.0% by weight, 1.5 to 3.0 based on the total weight of the composition Weight percent, 1.5 to 2.5 weight percent, or 1.5 to 2.0 weight percent. When the cosmetic composition does not include rice bran wax and rice bran wax among plate-shaped powders, the high temperature stability is very low, and the composition may be separated at 37°C or higher, and even at room temperature, stability may not be good. If the content of rice bran wax is less than 0.5% by weight, the high temperature stability effect by rice bran wax may not be significant. When the content of rice bran wax is less than 1.0% by weight, stability may not be good at a high temperature of 45°C or higher. If the content of the rice bran wax is 1.0% by weight or more, stability may be excellent not only at room temperature but also at a high temperature of 37°C or higher. If the content of the rice bran wax is 2.0% by weight or more, the stability may be very excellent because the separation phenomenon does not occur even when stored at a high temperature of 37° C. or higher for 14 days or more. If the content of rice bran wax exceeds 3.0% by weight, it may not exhibit light spreading properties due to poor spreadability.

The "plate-shaped powder" is used interchangeably with "plate-shaped powder".

The cosmetic composition may include 10 to 35% by weight, 10 to 30% by weight, 15 to 35% by weight, 15 to 30% by weight, 20 to 35% by weight, or 20 to 30% by weight based on the total weight of the composition Can. If the cosmetic composition does not include plate-shaped powder among rice bran wax and plate-shaped powder or contains plate-shaped powder in an amount of less than 10% by weight, skin coverage may be poor or adhesion may be deteriorated. When the content of the plate-like powder is 10% by weight or more, the skin covering power may increase as the content of the plate-like powder increases. When the content of the plate-like powder exceeds 35% by weight, the amount of the powder is too large to make it difficult to mix the oil-dispersion type composition, and thus may not be produced.

The plate-shaped powder may be used as long as it is known in the cosmetic field. In one embodiment, the plate-shaped powder may be at least one of MICA, talc, sericite, barium sulfate, alumina, and boron nitride. , But is not limited to this. In another embodiment, the plate-shaped powder may be mica.

The cosmetic composition may further include an ester-based oil.

The “ester-based oil” means an oil in which an intramolecular ester (-COO-) bond exists. The ester oil can be obtained by a dehydration reaction of an acid and alcohol.

The ester-based oil can be used as long as it is known in the cosmetic field. In one embodiment, the ester-based oil may be a liquid ester-based oil having 10 to 30 carbon atoms. In another embodiment, the ester-based oil is diisostearyl malate, isopropyl myristate, isopropyl isostearate, isocetyl myristate, Octyldodecyl Myristate, Cetyl ethylhexanoate, Isocetyl ethylhexanoate, and Ethylhexyl Palmitate; Does not. In another embodiment, the ester-based oil may be diisostearyl malate.

The content of the ester-based oil can be selected by a person skilled in the art in consideration of the usability and flowability of the cosmetic composition. In one embodiment, the ester-based oil may be included in 5 to 20% by weight, or 5 to 15% by weight based on the total weight of the composition, but is not limited thereto.

The cosmetic composition may further include a volatile oil.

The volatile oil can be used as long as it is known in the cosmetic field. In one embodiment, the volatile oil may be at least one of isododecane, isohexadecane and disiloxane, but is not limited thereto. In other embodiments, the volatile oil may be isododecane.

The content of the volatile oil can be selected by a person skilled in the art in order to obtain a desired feeling of use of the composition. In one embodiment, the volatile oil may be included in 30 to 55% by weight, 30 to 50% by weight, or 30 to 45% by weight based on the total weight of the composition, but is not limited thereto. If the content of the volatile oil is too small, the matte feeling may not appear, and if it is too large, oil separation may occur.

The cosmetic composition may further include a pigment.

The pigment is not limited as long as it can be used in a cosmetic composition for lip makeup.

The pigment may be included in 15 to 25% by weight based on the total weight of the composition, but is not limited thereto.

The cosmetic composition may be of the oil dispersion type. The oil dispersion type may be a formulation that does not contain water.

The cosmetic composition may be a lip lacquer, lip tint or lip gloss formulation, but is not limited thereto. The cosmetic composition may be a liquid formulation having light spreading properties.

The cosmetic composition according to one embodiment also additional ingredients commonly used in cosmetics, such as thickeners, dispersants, fragrances, fillers, preservatives, preservatives, neutralizing agents, sunscreens, sweeteners, vitamins, free-radical scavengers, metal ions Containment agents, and any conventional cosmetic ingredients that can be selected from mixtures thereof.

One skilled in the art can select any additional ingredients and/or amounts thereof so that the advantageous properties of the compositions according to the present specification are not adversely or substantially unaffected by the expected addition.

The cosmetic composition according to one aspect has high temperature stability by including rice bran wax and plate-like powder, and has excellent lip coverage, color persistence, spreadability, and adhesion, and thus can be used as a cosmetic for lip makeup.

1 is a result of a comparison experiment of the covering force according to the content of the plate-like powder.
2 is a graph showing the results of evaluating color persistence of the cosmetic composition of Example 2.

Hereinafter, the present invention will be described in more detail through examples. However, these examples are for illustrative purposes only, and the scope of the present invention is not limited to these examples.

Examples 1 to 4 and Comparative Examples 1 to 2: Preparation of lip makeup cosmetic composition

Each raw material was weighed into a beaker according to each component and content of Table 1 below, heated to 75° C. to melt the contents, and the powder phase was completely dispersed to prepare a lip makeup cosmetic composition.

Comparative Example 1 Example 1 Example 2 Comparative Example 2 Example 3 Example 4 Diisostearyl malate
(Diisostearyl Malate) 10 10 10 10 10 10 Rice bran wax (Oryza Sativa (Rice) Bran Wax) 0 One 2 2 2 2 Disteardimonium Hectorite 2.5 2.5 2.5 2.5 2.5 2.5 Propylene Carbonate 0.8 0.8 0.8 0.8 0.8 0.8 Mica 30 30 30 0 10 20 Color base 20 20 20 20 20 20 Isododecane 36.7 35.7 34.7 64.7 54.7 44.7

Experimental Example 1: High temperature stability evaluation

For the cosmetic composition of Comparative Example 1 and Examples 1 to 2, an experiment was conducted to compare the high temperature stability according to the content of rice bran wax.

Specifically, the cosmetic compositions of Comparative Examples 1 and 1 to 2 were stored in a constant temperature bath at 25°C, 37°C, and 45°C for 14 days, respectively, and visual appearance changes were observed. The results are shown in Table 2 below.

Comparative Example 1 Example 1 Example 2 25 ℃ △ ○ ○ 37 ℃ X △ ○ 45 ℃ X X ○

○: stable, △: slightly separated, X: separated

As shown in Table 2, as the rice bran wax content increased, it was confirmed that the phenomenon of oil being cut off at high temperature is improved. In particular, the cosmetic composition of Example 2 was the most stable at high temperature.

Experimental Example 2: Cover power evaluation

For the cosmetic composition of Comparative Example 2 and Examples 2 to 4, an experiment was performed to compare the covering power according to the plate-shaped powder content.

Specifically, after applying a certain amount of the cosmetic compositions of Comparative Examples 2 and 2 to 4 to a certain area, it was confirmed the degree to which the background color is reflected.

1 is a result of a comparative experiment of the covering force according to the content of the plate-like powder.

As shown in FIG. 1, as the content of mica, which is a plate-like powder, increased, the background color did not appear, and the cosmetic composition of Example 2 containing 30% by weight of mica had the lowest degree of background color.

Experimental Example 3: Color persistence evaluation

For the cosmetic composition of Example 2, an experiment was conducted to evaluate the color persistence.

Specifically, the cosmetic composition of Example 2 was evenly applied to the lips, and immediately after application, it was confirmed whether the color persisted 4 hours later, 8 hours later.

2 is a graph showing the results of evaluating color persistence of the cosmetic composition of Example 2.

As shown in FIG. 2, it was confirmed that the cosmetic composition of Example 2 retained 94.8% of the color immediately after application even after 8 hours of application.

Experimental Example 4: Sensory evaluation

For the cosmetic compositions of Comparative Examples 1 and 2 and Example 2, sensory evaluation was performed.

Specifically, for 30 female panelists aged 25 to 45 years, the cosmetic compositions of Comparative Examples 1 and 2 and Example 2 were evaluated according to the following evaluation criteria to evaluate the feeling of use such as spreadability and overall satisfaction of adhesion. Did. The spreadability was evaluated by applying the contents lightly when applied to the lips using a tip. For the adhesion, the composition was evaluated by applying a thin layer on the skin surface and sticking to the lips. These standards increase the value of use as a lip makeup cosmetic and can be an important feature of lacquer formulations. The sensory evaluation results are shown in Table 3 below.

<Evaluation criteria>

24 or more women judged to be excellent: ◎

18-23 women judged to be excellent: ○

10-17 women judged to be excellent: △

10 or fewer women judged to be excellent: X

Comparative Example 1 Example 2 Comparative Example 2 Light spread ◎ ◎ ○ Adhesion △ ◎ X

As shown in Table 3, Comparative Example 2, which did not contain plate-like powder, had poor adhesion. Comparative Example 1, which does not contain rice bran wax, but contains plate-like powder, has slightly increased adhesion, and Example 2, which contains rice bran wax and plate-like powder, has excellent adhesion. In addition, as can be seen from the results of Example 2, it was confirmed that the rice bran wax slides lightly at the time of sliding to have light spreadability even when the hardness is increased by using rice bran wax to increase the high temperature stability. Therefore, it was confirmed that Example 2, which includes both rice bran wax and plate-shaped powder, has excellent spreadability and adhesion compared to Comparative Example 1 or Comparative Example 2, which includes only one of the two.

Claims (10)

0.5 to 3.0% by weight of rice bran wax relative to the total weight of the composition, 10 to 35% by weight of plate-like powder, 5 to 20% by weight of ester-based oil and 30 to 55% by weight of volatile oil,
The plate-like powder is one or more of mica, talc, sericite, barium sulfate, alumina and boron nitride,
The ester-based oil is a liquid ester-based oil having 10 to 30 carbon atoms,
The volatile oil is one or more of isododecane, isohexadecane and disiloxane,
Lip makeup cosmetic composition of oil dispersion type. delete delete delete delete delete delete delete delete The lip makeup cosmetic composition according to claim 1, which is a lip lacquer, lip tint, or lip gloss formulation.

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