JP2003160434A - Liquid cosmetic composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a liquid cosmetic composition excellent in characteristics as a cosmetic capable of applying with moist feeling to the skin and lips without spreading and characteristics as an ink such as fluidity, discharge performance and dispersion stability of pigments and the like. <P>SOLUTION: This liquid cosmetic composition contains a copolymer of methacryloyl ethylbetain with an alkyl methacrylate and diisostearic acid- monohydrogenated rosin-glyceryl and/or diisostearyl malate. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid cosmetic composition, and more particularly to a liquid lipstick containing the liquid cosmetic composition.

[0002]

2. Description of the Related Art Among makeup products, makeup products are
Since it is mainly intended to beautify the human body, it is required to be able to express various colors. Among them, lipsticks, which are typical makeup cosmetics, have been developed in various color tones, but in recent years, by mixing glossy metal powder, lipstick has a metallic luster when applied. , There is a growing need for things that appear to change in brightness and color tone depending on the viewing angle.

However, in the conventional stick-shaped lipstick,
If the amount of the metal powder is increased in order to sufficiently obtain this effect, there is a drawback that the lipstick easily breaks. In order to overcome this drawback, if the stick is made hard, the extensibility of the lipstick at the time of application is reduced and it cannot be applied smoothly,
In addition, if the diameter of the stick is increased, it is difficult to adjust the shape of the stick during application.

On the other hand, a pen-shaped applicator filled with a liquid cosmetic has been proposed as an alternative to the stick. As a pen type applicator, for example, JP-A-60-
As disclosed in Japanese Patent No. 115493, there is one that advances the internal piston by knocking the rear end of the applicator and supplies the liquid to the pen tip. Due to this mechanism, a liquid cosmetic to be filled. Are required to have excellent ink characteristics such as fluidity, ejection performance, and pigment dispersion stability.

[0005]

DISCLOSURE OF THE INVENTION The present invention has excellent cosmetic properties such as a moist feel on the skin and lips that can be applied without bleeding, and fluidity, ejection performance, and pigment dispersion stability. It is an object of the present invention to provide a liquid cosmetic composition having excellent properties as an ink such as properties.

Further, the present invention aims to provide a liquid cosmetic composition which is excellent in the above-mentioned properties and which can realize a sufficient metallic luster and various color tones, and in particular, such a liquid cosmetic composition. An object of the present invention is to provide a liquid lipstick containing The liquid lipstick of the present invention is required as a lipstick, that is, it is harmless to the lips, has no taste or smell, needs to be smoothly applied to the lips as a lipstick, and needs to maintain an attractive appearance. It should be kept for a long time, that there should be no change in color tone, that it is difficult to transfer color to a cup, and that it can be easily washed off when necessary.

[0007]

The present invention is characterized by containing a copolymer of methacryloylethyl betaine and an alkyl methacrylate, and diisostearic acid-monohydrogenated rosin-glyceryl and / or diisostearyl malate. And a liquid cosmetic composition.

Further, the present invention has a viscosity of 3,000 to.
4,500 mPa · s [cP] (Brookfield type viscometer, rotor: No. 4, rotation speed: 12 rmp, 25 ° C.), which is the above-mentioned liquid cosmetic composition, a coloring material and / or a silicone-treated aluminum The liquid cosmetic composition further comprises a powder. Furthermore, the present invention is a liquid lipstick containing the above liquid cosmetic composition.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The liquid cosmetic composition of the present invention contains a copolymer of methacryloylethyl betaine and alkyl methacrylate and diisostearic acid-monohydrogenated rosin-glyceryl and / or diisostearyl malate.

The copolymer of methacryloylethyl betaine and alkyl methacrylate has a molar ratio of the composition of methacryloyl ethyl betaine and alkyl methacrylate of 1:
It is preferably in the range of 4 to 2: 3.

Specific examples of methacryloylethyl betaine include N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine. The methacryloylethyl betaines may be used alone or in combination of two or more. The alkyl methacrylate may have a linear or branched alkyl group, but the alkyl group preferably has 1 to 18 carbon atoms, and particularly preferably 4 to 8 carbon atoms. Alkyl methacrylate alone is 2
It may be more than one species.

[0012] As the above-mentioned copolymer, blending according to makeup product type
N-methacryloyl ester shown in component standard 521112
Xyethyl N, N-dimethylammonium-α-N-me
Cylcarboxybetaine / alkyl methacrylate ester
Copolymer contained in the copolymer liquid, that is, N-meta
Cryloyloxyethyl N, N-dimethylammonium
-Α-N-methylcarboxybetaine and methacrylic acid
Rukiru (C₁~ C_Four, C ₆, C₈, C₁₂, C₁₃, C₁₈) With
Copolymers, such as N-methacryloyl ether.
Xyethyl N, N-dimethylammonium-α-N-me
Copoly of Cylcarboxybetaine and Butyl Methacrylate
Mar is mentioned. The copolymer liquid is Yukaformer.
Series (Yuka Former R205S, Yuka Former
SM, Yuka Former 202, Yuka Former 301,
Yuka Former 104D, Yuka Former M-75, Yu
(Former 510, yukaformer 204WL), a
Commercially available from Mitsubishi Chemical Corporation
It is contained in the thing, the copolymer contained in these
Can be used. Copolymers included in these
Is separated by distilling off components other than the copolymer by distillation.
You can

The copolymer is preferably blended in an amount of 3 to 15% by weight, more preferably 5 to 10% by weight, based on the total weight of the liquid cosmetic composition. When the blending amount of the copolymer is within this range, the fluidity is appropriate, and therefore, the feel after application to the lips is excellent, and particularly when used as a filling liquid for a pen-type applicator, it may leak from the pen tip. No, and the ejection is good.

The present invention also relates to N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer liquid, which is shown in the formulation component standard 521112 for each cosmetic variety, and diisostearic acid- A liquid cosmetic composition containing monohydrogenated rosin-glyceryl and / or diisostearyl malate. Examples of the N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer liquids shown in the cosmetic composition-specific compounding component standard 521112 include the above, and the copolymer liquids are , 10 to 50% by weight based on the total weight of the liquid cosmetic composition, and more preferably 15 to 50% by weight.
35% by weight.

The liquid cosmetic composition of the present invention contains diisostearate-monohydrogenated rosin-glyceryl and / or diisostearyl malate. These control the flowability together with the above-mentioned copolymer, and also control the adhesion to the skin and the lips, the feeling of use, especially the cleaning properties when used as a lipstick.

Here, diisostearic acid-monohydrogenated rosin-glyceryl is a triester in which 1 molecule of hydrogenated rosin and 2 molecules of isostearic acid are condensed on 1 molecule of glycerin:

[0017]

[Chemical 1]

(Wherein R ¹ is a hydrogenated rosin residue and R ² is an isosteric acid residue:

[0019]

[Chemical 2]

The commercially available product is ISR oil (Nippon Seika Co., Ltd.). Diisostearyl malate is commercially available as Cosmol 222 (Nisshin Oil Co., Ltd.). Diisostearate-monohydrogenated rosin-glyceryl and diisostearyl malate can be used alone or in combination.

Diisostearate-monohydrogenated rosin-glyceryl and / or diisostearyl malate is
It is preferable to add 20 to 70% by weight, more preferably 20 to 50% by weight, based on the total amount of the cosmetic composition.
Is. When the blending amount is in the above range, the fluidity and these properties are good, and especially when a liquid cosmetic composition is used as a filling liquid for a pen-type applicator, the ink is prevented from drying at the pen tip, It is possible to prevent the ink from solidifying at low temperatures.

The liquid cosmetic composition of the present invention comprises ethyl alcohol, propylene glycol, glycerin, 1,3-
A solvent such as butylene glycol may also be added.

The liquid cosmetic composition of the present invention may contain a coloring material. The coloring material is for imparting a coloring effect to makeup cosmetics, and is not particularly limited as long as it is blended in makeup cosmetics.
Examples include organic dyes and pigments such as Red No. 201 and Red No. 202, yellow No. 4 aluminum lake, blue No. 1 aluminum lake, lakes such as red No. 104 (1) aluminum lake, and inorganic pigments such as Gunjo Pink. Mica,
White pigments such as talc can also be used. The amount of the coloring material added is 0.3 to 5 relative to the total weight of the liquid cosmetic composition.
A weight% range is preferred.

The liquid cosmetic composition of the present invention may contain a silicone-treated aluminum powder. The silicone-treated aluminum powder imparts a metallic luster to makeup cosmetics.

The term "silicone-treated aluminum powder" as used herein means an aluminum powder surface-treated with silicone, and examples thereof include aluminum powder treated with a silane coupling agent to coat the surface. By surface-treating with silicone, the dispersion stability in the liquid cosmetic composition can be improved. The average particle size of the silicone-treated aluminum powder is preferably in the range of 5 to 30 μm, more preferably 5 to 20 μm.
The addition amount is preferably 3 to 20% by weight, and more preferably 5 to 15% by weight, based on the total amount of the liquid cosmetic composition.

In the liquid cosmetic composition of the present invention, in addition to the above components, oils and fats, moisturizers, natural pigments, surfactants,
Any cosmetic ingredients such as fragrances, antioxidants, preservatives and the like which are added to makeup cosmetics can be added.

The liquid cosmetic composition of the present invention has a viscosity of 3,
It is preferably 000 to 4,500 mPa · s [cP] (Brookfield type viscometer, No. 4, rotation speed: 12 rpm, 25 ° C.). In particular, when filled in a pen type applicator, the viscosity is particularly preferably 3,300 to 3,900 mPa · s [cP].

The liquid cosmetic composition of the present invention comprises a liquid lipstick,
It can be used for make-up cosmetics such as lip balms, eye shadows and eye liners.

The liquid cosmetic composition of the present invention can be obtained by stirring and kneading the components with a stirrer such as a homomixer or a disperser such as a three-roll or ball mill.

The liquid cosmetic composition of the present invention can be filled in a container, or it can be filled in a pen-shaped applicator and used as a pen-type cosmetic product. The pen shape of the pen-type applicator is not particularly limited as long as it is a pen generally used as a stationery. For example, the pen tip may be any one of a fiber bundle and a sponge, and a liquid discharge mechanism using a piston, a dial rotation,
It may be any of those which impregnate the batting with the liquid and discharge the liquid without any operation. More specifically, the liquid cosmetic composition of the present invention can be filled in place of the ink of the ballpoint pen of the stationery. In particular, a liquid lipstick containing the liquid cosmetic composition of the present invention is preferable.

[0031]

EXAMPLES The present invention will be further described below with reference to examples, but the present invention is not limited to these examples.

Example 1 1.0 part of Red No. 201 and 1.7 of Red No. 202 as color materials
Parts and 0.3 part of Red No. 223, 6 parts by weight of silicone-treated aluminum powder and 40 parts by weight of diisostearic acid-monohydrogenated rosin-glyceryl were kneaded three times with a three-roll mill, and then this was mixed with Yucaformer 202 20. Parts by weight (6 parts by weight of N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxymethaine / methacrylic acid alkyl ester copolymer, ethanol 1
4 parts by weight), 10 parts by weight of propylene glycol and 20 parts by weight of ethanol, and stirred with a stirrer to obtain a viscosity of 20,000 mPa · s [cP] (Brookfield type viscometer, No. 4, rotation speed: 12 rmp, A liquid lipstick of 25 ° C.) was obtained. The Brookfield type viscometer used was a B type viscometer manufactured by Tokyo Keiki Co., Ltd. By the same operation,
Liquid lipsticks of Examples 2 to 4 were prepared by changing the composition. Further, Comparative Examples 1 to 3 using conventional waxes, cetyl 2-ethylhexanoate and the like were prepared in the same manner. A list of compositions is shown in Table 1.

[0033]

[Table 1]

Next, the prepared liquid lipstick was treated with a liquid crystal composition of Japanese Patent Laid-Open No.
It was filled in the pen shown in Example 1 of No. 17423, applied to the lips of 7 monitors, and evaluated by the following items.
The fluidity of the ink was also evaluated. The evaluation stages were three grades of ⊚ (excellent), ◯ (preferred), and Δ (poor), and the average of the results of each monitor was shown. Feeling of application: Feeling when applied to the lips. Fixability that smoothly and without bleeding: Degree of color transfer when white cloth and white paper are pressed against lipstick after application and drying on lips Glossiness: Gloss when observed on natural light after application and drying on lips,
Coloring effect Flexibility: No tingling sensation when applied to lips and dried Fluidity: The fluidity of liquid lipstick from the pen tip is shown in Table 2.

[0035]

[Table 2]

[0036]

From the table, it can be seen that Examples 1 to 4 of the present invention obtained favorable results in all evaluation items. In particular, Example 2 is excellent.

The liquid cosmetic composition of the present invention has excellent moisturizing feel on the skin and lips and is excellent in cosmetic properties such that it can be applied smoothly and without bleeding.
It also has excellent properties as an ink, such as fluidity, ejection performance, and pigment dispersion stability. In addition, a color effect and a metallic luster are exhibited by a combination with a coloring material and a silicone-treated aluminum powder, which is particularly suitable for liquid lipstick.

Claims (6)

[Claims] 1. A liquid cosmetic composition comprising a copolymer of methacryloylethyl betaine and a methacrylic acid alkyl ester and diisostearic acid-monohydrogenated rosin-glyceryl and / or diisostearyl malate. 2. The liquid cosmetic composition according to claim 1, wherein the copolymer is N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine / methacrylic acid alkyl ester copolymer. 3. N-methacryloyloxyethyl N, N-dimethylammonium-α-N-methylcarboxybetaine-methacrylic acid alkyl ester copolymer liquid of cosmetic composition standard 521112, and diisostearic acid-monohydrogenated rosin-glyceryl. And / or diisostearyl malate, The liquid cosmetic composition characterized by the above-mentioned. 4. The viscosity is 3,000 to 4,500 mPa · s.
[CP] (Brookfield type viscometer, rotor: N
o. 4, rotation speed: 12 rpm, 25 ° C.), The liquid cosmetic composition according to claim 1. 5. The liquid cosmetic composition according to claim 1, further comprising a coloring material and / or a silicone-treated aluminum powder. 6. A liquid lipstick containing the liquid cosmetic composition according to claim 1.