KR100262763B1 - Lipstick composition - Google Patents

Abstract

PURPOSE: A lipstick composition of stable gel network structure between polar ester(formula 1) and hydrophilic moisturizing agent without castor oil is provided, which shows excellent moisturizing effect by preventing moisture-loss with oil-membrane of oil-philic material, good feel of use and coloring property, and durability of color. CONSTITUTION: The lipstick composition consist of 12.0wt.% of diglyceryl isostearate, 0.2wt.% of organic bentonite, 9.0wt.% of glycerin, 3.0wt.% of microcrystalline wax, 4.0wt.% of ceresin wax, 3.0wt.% of carnauba wax, 5.0wt.% of candelilla wax, 10.0wt.% of octyl palmitate, 5.5wt.% of pytrolatum, 2.0wt.% of cholesterol hydroxy stearate, 1.0wt.% of tocopheryl acetate, 0.1wt.% of propyl paraben, 1.0wt.% of polymethyl meta acrylate, 17.0wt.% of 1,1,1-trimethylol propane triisostearate, 3.0wt.% of red 202 Ca lake, 2.0wt.% of iron oxide yellow, 1.0wt.% of iron oxide red, 3.0wt.% of titanium dioxide, and rest amount of octyl dodecanol.

Description

Lipstick composition

The present invention provides a lipstick composition having an excellent moisturizing effect by applying moisture to the lips by stably blending a hydrophilic moisturizing agent to the lipstick made of an oily base, and having an excellent feeling of use, color development and color when applied to the lips.

The present invention is applied to the lips of the color cosmetics to express the color, protect the lips from the harmful environment from outside to prevent drying and roughness, and by reliably formulating a hydrophilic moisturizer using a gel network structure to actively moisturize the lips The present invention relates to a lipstick having an excellent moisturizing effect.

Moisture lipsticks using general oily bases include waxes, pigment dispersants, oily emollients, coupling agents, pigments, preservatives, fragrances, and additives to improve the compatibility of wax and oil. It is composed of a moisturizing effect that prevents water evaporation by forming an oil film on the lips rather than supplying moisture to the lips.

In order to provide a lipstick with a more active moisturizing effect, water-in-oil type (W / O) emulsion lipsticks using water or hydrophilic polyhydric alcohols with surfactants have been attempted. The lipstick provided by this water-in-oil type emulsion has a moisturizing effect by moisture, which keeps the lips moist without being dried after application, and has excellent feeling of use such as application, smoothness, and feel, but changes in appearance glossiness due to volatilization of water over time. As a result, the bond strength of the rod structure is weakened, the aggregation of the hydrophilic inorganic pigment used in the lipstick, and the change in the color tone result in a decrease in the product value of the product. .

In general, emulsified lipsticks have a good feeling of use and excellent moisturizing effect, while the pigments used by the surfactant and the hydrophilic raw material are oriented toward the water phase, so that the color tone changes and causes destabilization of pigment dispersion and color development when applied to the lips. And color persistence.

Therefore, in the present invention, in order to minimize the destabilization of pigment dispersion due to the blending of the hydrophilic raw material, a substance formed by using a highly polar ester and an organic modified bentonite to form a stable gel network structure even at room temperature is dispersed in the oily base of the lipstick. This prevents the hydrophilic groups of the pigments from being oriented toward the hydrophilic molecule, thereby developing a lipstick having excellent pigment dispersibility, good color development and color sustaining effect, soft application in terms of feeling of use, and excellent moisture retention on lips.

The present invention relates to a lipstick composition characterized in that the hydrophilic humectant, the polar ester and the organomodified bentonite form a gel network structure.

In order to form a gel network structure of a hydrophilic moisturizing agent and a high polar ester, which are the core of the present invention, the ester should be an ester of an iso structured fatty acid (isostearic acid) and a polyalcohol (glycerine) rather than a linear chain. Is composed of a hydroxyl group and as a polar solvent it is possible to stable hydrogen bonding with the hydrophilic moisturizer. The general molecular structure of the high polar ester is represented by the following general formula (1).

[Formula 1]

Wherein R ₁ , R ₂ , R ₃ and R ₄ are COC ₁₇ H ₃₅ or H, respectively.

These two materials form a gel network structure which, upon application of some physical force at room temperature, exhibits the physical properties of the intermediate between solid and liquid as a fourth material form, which results in a very thermodynamic It is in a stable state. Therefore, the phenomenon that the hydrophilic material is not separated from the normal use temperature of the lipstick as well as a high temperature that may occur during long-term storage does not occur. In addition, the organically modified bentonite used in the present invention may contribute to stabilization of dispersion by coagulating pigments, particularly inorganic pigments, by increasing the viscosity of the oil phase by forming a flake-like crystal layer.

The lipstick composition of the present invention contains 6.0 to 18.0% by weight of a polyhydric alcohol which is a hydrophilic moisturizer and 5.0 to 20.0% by weight of a polar ester, and as the polar ester, diglyceryl isostearate, diglyceryl diisostearate and diglyceryl One selected from the group consisting of triisostearate is preferably used. The lipstick composition of the present invention also contains 0.02 to 0.5% by weight of organic modified bentonite and 10.0 to 30.0% by weight of triisostearic acid 1,1,1-trimethylolpropane for pigment dispersion.

Member materials that can be used in the lipstick composition of the present invention is shown in Table (1).

The oily base used in the present invention was selected in consideration of temperature stability, compatibility, and usability among the above types of raw materials, and in particular, sweating, which is a phenomenon of separation of the oil onto the wax surface that may occur during long-term storage of lipstick. Careful experiment was conducted to prevent this from occurring.

In the present invention, it is intended to stably blend a hydrophilic substance to the lipstick composed of only such an oily base. For the hydrophilic substance used for this, a polyhydric alcohol such as propylene glycol, 1,3-butylene glycol, dipropylene glycol, glycerin, etc. was used. The fatty acid ester of polyhydric alcohol was used as a highly polar ester which can form a gel network structure as a homogeneous mixture at these and normal temperature. For example, decaglyceryl tetraoleate, hexaglyceryl triisostearate, tetraglyceryl diisostearate, diglyceryl isostearate, diglyceryl diisostearate, diglyceryl triisostearate, etc. And glycerin fatty acid esters such as polyglycerol chiba acid ester, glyceryl monostearate, and glyceryl monooleate.

Among the raw materials listed above, in particular, polyglycerin fatty acid esters have excellent pigment solubility and pigment dispersibility, so that diglyceryl isostearate and diglyceryl diisosteare are considered in consideration of stable dispersion and color development of color materials used in lipstick. Raw materials, such as a late and diglyceryl triisostearate, were selected. Particularly, these raw materials were found to form stable gel network structure with hydrophilic polyhydric alcohol when applying a certain physical force at room temperature. Once formed, the gel network structure has a uniform heating process or uniformity of raw material during melting process of general lipstick raw materials. It was found that the stable state was maintained even under the physical pressure applied for the mixing.

In the present invention, by blending a hydrophilic material, it is possible to develop a lipstick having an active moisturizing effect by supplying moisture to the lips and preventing evaporation of moisture by an oil seal, that is, a protective film based on an oily base. In the following Table (2) and Table (3), as a basis for the introduction of a hydrophilic substance in the lipstick, the structural difference with the skin of the lips and the worrying data about the lips of the lipstick user are presented.

In consideration of the above, as a hydrophilic substance, glycerin, propylene glycol, 1, 3-butylene glycol, dipropylene glycol, etc. were tested in consideration of moisturizing performance, affinity with oil, and dispersibility of pigment. Glycerin was the most stable in forming a stable gel network structure with the polar ester.

In addition, the organic modified clay mineral used in the present invention is an organic bentonite in which the clay mineral is modified by using a quaternary ammonium cation (quaternium 18) of the montmorillonite crystal surface, and exhibits a swelling property with respect to the organic solvent. When shear is added to the dispersion, the flake crystals are arranged parallel to the flow, so the viscosity becomes low, and when the dispersion is stopped again, the flake crystals are separated again by hydrogen bonding of hydroxyl groups present in the cross section of the flake crystal. Viscosity increases by forming networks.

Such thickening and thixotrophy can serve as thickeners and anti-sedimentation agents of pigments, as well as aid in stable blending of hydrophilic molecules because hydrophilic molecules can be captured by hydrogen bonds between layers of crystals. Could.

In the present invention, by using the castor oil triisostearic acid 1, 1, 1-trimethylolpropane instead of the castor oil used as a pigment dispersant in the lipstick, it prevents the smell peculiar to the oily base of the contents generated by using castor oil, The whiteness of the color of the agent could be increased, and the stability of the pigment was almost the same as that of castor oil.

The present invention is illustrated by the following examples. However, these examples should not be understood as limiting the invention. In these examples the content of components is weight percent.

EXAMPLE

[Examples 1 to 5]

The formulation stability and hygroscopicity and moisture retention test of the lipstick containing the gel network structure of a hydrophilic substance were done with the component and component ratio shown to the following table (4).

The stability was observed by the separation phenomenon during the heating process at high temperature and the occurrence of sweating during the storage of the thermostat at 45 ° C. The hygroscopic and moisturizing tests were performed as follows.

Hygroscopic test

20 g of the lipstick composition prepared from the components and the component ratios of the respective examples were put in a chaale to accurately measure the weight. Then, it is left under high humidity (relative humidity 80%) in an open state, and the weight is measured every predetermined time. (Approximately 10 days, once every day)

Moisturizing Test

Ten days after the start of the hygroscopic test, the shale containing the absorbent lipstick composition is left under low humidity (relative humidity of 20%) in an open state. In the same manner as the hygroscopic test, the weight is measured and the moisture content is calculated by the following method.

Water content (%) = (weight at the start of weight-measurement after standing) / weight after standing

The gel network structure of glycerin and diglycerin isostearate was the most stable in the high temperature stability of the contents prepared as a result of the stability, moisture absorption, and moisturizing test of the above example, and when the content of glycerin was more than 20.0% by weight, the separation occurred at high temperature. In case of less than 5.0% by weight, it was difficult to expect meaningful moisturizing effect.

[Examples 6 to 10]

The above example was tested using only organic pigments. The stability of inorganic pigment dispersion according to the formulation of hydrophilic substances by the components and component ratios of the following Table (5) using titanium dioxide and iron oxide, which are general inorganic pigments used in lipsticks, was measured. Tested.

Experimental results of Examples 6 to 10 did not show sufficient physical structural strength, such as the separation of the pigment occurs at high temperatures in the case of Example 6 in which only 18.0% by weight of glycerin is combined, and broken during use. Glycerin content of less than 9.0% by weight had a positive effect on both stability and moisturizing effect.

[Examples 11 to 15]

In Examples 11 to 15, by mixing the organic variable bentonite, it was possible to stabilize the gel network structure of the hydrophilic group and the hydrophilic material of the inorganic pigment, and to form a lipstick composition by adjusting the content of wax and blending the polymer powder on the lips. It is used to adjust the feeling felt during application.It is applied well according to the normal operating temperature (room temperature) and the method of use.It is applied well while maintaining the physical structural strength.It has excellent adhesion and long lasting color. According to the evaluation result on condition that it does not spread along the case of Example 13, it was determined that it was the most excellent.

Accordingly, a comparative evaluation moisturizing test with Example 13 was carried out through the following comparative example containing no hydrophilic material.

`` Quality evaluation method ''

Evenly divide the left and right sides of the subject's lips, apply each sample, and then evaluate each item after 2 hours

Determination method;

Very good (◎), good (○), normal (△), bad (×), very bad (××)

By combining hydrophilic materials as described above, the user can expect to increase the moisturizing effect that can be sensed by the user. Highly moisturizing moisturizing lipstick with excellent adhesion and color persistence through blending of polymer powder and pearl agent such as polymethyl methacrylate It can be manufactured and the creation of beautiful colors is possible.

6.0-18.0 wt% of glycerin, a hydrophilic moisturizer according to the present invention, 5.0-20.0 wt% selected from the group consisting of diglyceryl isostearate, diglyceryl diisostearate and diglyceryl triisostearate as polar esters %, 0.02 to 0.5% by weight of organic modified bentonite, and 10.0 to 30.0% by weight of triisostearic acid 1,1,1-trimethylolpropane for dispersing pigments, compared to conventional lipstick compositions comprising only oily bases. It shows excellent moisturizing effect and has excellent effect on color persistence, usability and physical stability.

Claims (1)

5.0-20.0% by weight of a polar ester selected from the group consisting of diglyceryl isostearate, diglyceryl diisostearate and diglyceryl triisostearate; Hydrophilic humectants selected from the group consisting of water, propylene glycol, dipropylene glycol, 1,3-butylene glycol, and glycerin; And the organomodified bentonite forms a gel network.