JP2010215525A - Pencil-like cosmetic - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pencil-like cosmetic having excellent smoothness on application and good makeup durability. <P>SOLUTION: The pencil-like cosmetic is obtained by compounding (a) 5-20 mass% behenyl alcohol, (b) 5-20 mass% trimethylsiloxysilicic acid, and (c) 1-20 mass% semisolid oil component having a melting point of 30-50°C composed of at least one selected from dipentaerythrityl hexahydroxystearate, bis-diglyceryl polyacyl adipate-2, and a hydroxyalkyl dimer dilinoleyl ether. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a pencil-shaped cosmetic material, and more particularly to a pencil-shaped cosmetic material having excellent makeup and smoothness during application.

  In general, pencil-type cosmetics such as eyeliner pencils and eyebrow pencils with good makeup have a solid oil component, fluid oil component, volatile oil component, and resin as the main components. Is formed on the skin. The formed film is insoluble in water, so it does not soak into sweat and tears, and is strong against sebum. When removed, it can be removed by wetting with a remover. For this type of pencil-shaped cosmetic, selection of resin is important from the viewpoint of usability. Pencil-shaped cosmetics using recently developed organosilicone resins (for example, 50% solution of trimethylsiloxysilicic acid decamethylcyclopentasiloxane) have good water resistance and oil resistance, and are excellent in long-lasting makeup. (For example, Patent Document 1).

  On the other hand, pencil-shaped cosmetics such as eyeliner pencils, eyebrow pencils, and lip pencils are divided into types that are sharpened like pencils and those that are drawn out like mechanical pencils. There is a type whose contents can be replaced.

  Since these pencil-shaped cosmetics are directly applied to the eyes and lips and used, it is preferable that they can be applied smoothly in addition to having good makeup, but conventionally known pencil-shaped cosmetics are This was not always satisfactory.

JP2007-210958A

  An object of the present invention is to provide a pencil-like cosmetic and a cosmetic product that have excellent makeup and smoothness during application.

  As a result of diligent research, the present inventors have found that a pencil-shaped cosmetic excellent in smoothness at the time of application and application can be obtained by blending behenyl alcohol, trimethylsiloxysilicic acid, and a specific semi-solid oil. I found it.

That is, the present invention
(A) 5-20% by mass of behenyl alcohol, (b) 5-20% by mass of trimethylsiloxysilicic acid, (c) dipentaerythrityl hexahydroxystearate, bisdiglyceryl polyacyl adipate-2, hydroxyalkyl dimer dilino A pencil-shaped cosmetic comprising 1 to 20% by mass of a semi-solid oil having a melting point of 30 ° C to 50 ° C selected from one or more selected from rail ethers.

  The pencil-shaped cosmetic of the present invention is excellent in smoothness at the time of application, and has a long lasting makeup.

The best mode of the present invention will be described below.
In the present invention, by adding behenyl alcohol and trimethylsiloxysilicic acid, the longevity of makeup is enhanced, and by adding a specific semi-solid oil content thereto, a pencil-like shape having a smooth coating feeling in addition to the longevity of the cosmetics. It could be used as a cosmetic.

  (A) Behenyl alcohol used in the present invention is an oily raw material classified as a higher alcohol, and is a white solid having a melting point of 65 to 73 ° C. obtained from reduced alcohol of rapeseed oil.

  (A) The compounding quantity of behenyl alcohol is 5-20 mass% in the pencil-like cosmetics whole quantity, Preferably it is 10-15 mass%. (A) When there are too many components, it will become hard, and when there are too few components, it will become soft, and neither moderate hardness can be obtained.

Next, (b) trimethylsiloxysilicic acid will be described.
(B) Trimethylsiloxysilicic acid consists of a combination of R ₃ SiO _1/2 units and SiO ₂ units, the proportion of which is an average formula: R _n SiO _{(4-n) / 2} (n is 1.0 to 1. It is preferred to have an average molecular weight of up to about 1500 to 10,000.

The trimethylsiloxysilicic acid is soluble in benzene and can be produced by various methods. As an example, compounds represented by the general formulas R ₃ SiX and SiX ₄ (wherein X represents a hydrolyzable group such as chlorine, bromine, fluorine, alkoxy group such as methoxy, ethoxy group, and acyloxy group). Is added to a suitable solvent such as toluene, benzene, xylene, etc., depending on the desired resin composition, and this solvent is then added in an amount sufficient to obtain the desired hydrolysis and cocondensation in a suitable acidic solvent. Add in water. The aqueous phase is removed from the two-phase system thus obtained, the remaining resinous material is neutralized with a sufficient amount of sodium bicarbonate or other alkaline material, and the target trimethylsiloxysilicate is removed by distilling off the solvent. Is obtained.

As such a trimethylsiloxysilicic acid, it is desirable to mix | blend what was previously dissolved in the volatile oil (solvent) in cosmetics. Examples thereof include KF-7312J, KF-9021, X-21-5595 (trade name, manufactured by Shin-Etsu Silicone), BY11-018 (trade name, manufactured by Toray Industries, Inc.), and the like.
Examples of the volatile oil (solvent) used for dissolving trimethylsiloxysilicic acid include decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, and isoparaffin.

  The blending amount of (b) trimethylsiloxysilicic acid in the present invention is 5 to 20% by mass, preferably 10 to 15% by mass, based on the total amount of the pencil-like cosmetic. If the amount of trimethylsiloxysilicic acid is less than 5% by mass, the makeup will be insufficient, and if it exceeds 20% by mass, the spread becomes heavy.

Next, (c) the semi-solid oil component having a melting point of 30 to 50 ° C. will be described.
The component (c) is preferably one or more selected from dipentaerythrityl hexahydroxystearate, bisdiglyceryl polyacyl adipate-2, and hydroxyalkyl dimer linoleyl ether.

  Here, Cosmol 168M (Nisshin Oilio Co., Ltd.) is mentioned as a commercial item as dipentaerythrityl hexahydroxystearate. Examples of bisdiglyceryl polyacyl adipate-2 include SOFTISAN 649 (manufactured by SASOL) as a commercial product. Examples of the hydroxyalkyl dimer linoleyl ether include Supermol PS (manufactured by Croda Japan) as a commercial product.

  (C) The compounding quantity of a component shall be 1-20 mass%, Preferably it is 5-15 mass%. When the blending amount of the component (b) is less than 1% by mass, the smoothness at the time of application is lacking, and when it exceeds 20% by mass, the spread at the time of application becomes heavy.

  In the present invention, in addition to the oil as the essential component, cetyl 2-ethylhexanoate, glyceryl triisostearate, neopentyl glycol dicaprate, isostearyl alcohol malate diester, trimethylolpropane triisooctanoate, isooctanoic acid Fluid oils such as triglyceride, pentaerythritol tetraisooctanoate, octyl palmitate, acetyl tributyl citrate, dimethylpolysiloxane (6 to 5000 cs), methylphenylpolysiloxane and the like can be used.

  In the present invention, a solid oil such as wax or wax may be used in combination with behenyl alcohol which is an essential component. Although it does not specifically limit as melting | fusing point of solid oil components other than behenyl alcohol, From the surface of the ease of manufacture or product stability, it is 55 to 105 degreeC, Preferably, it is 60 to 100 degreeC. The solid oils include carnauba wax, candelilla wax, beeswax, hardened castor oil, behenic acid, polyethylene wax, microcrystalline wax, mixed wax of polyethylene wax and microcrystalline wax, ceresin wax, solid paraffin wax, rice bran wax, Fischer-Tropsch wax, tri Stearin or the like can be used. These solid oils may be used alone or in combination of two or more.

  The blending amount of the solid oil other than behenyl alcohol is not particularly limited, but it is 0 to 35% by mass, preferably 5 to 25% by mass, and more preferably 10 to 20% by mass with good solidifying power. And get a feeling of use.

  The total amount of behenyl alcohol and solid oil other than behenyl alcohol is preferably 20 to 40% by mass.

  In the present invention, a color material is blended in addition to the above essential components. The color material may be any color material that is usually used in pencil-shaped cosmetics, and may be in the form of powder or rake (a state in which oil is kneaded). It may be an inorganic pigment, an organic pigment, or a pearl agent.

  In the pencil-like cosmetic of the present invention, if necessary, in addition to the above components, pigments, moisturizers, preservatives, antioxidants, fragrances, drugs, solvents, etc. are qualitative and quantitative without impairing the effects of the present invention. It can be used under conditions.

  The pencil-shaped cosmetic of the present invention includes lip pencils, pencil-shaped eye shadows, etc. in addition to eyebrow pencils and eyeliner pencils, and eyebrow pencils and eyeliner pencils are particularly suitable. Examples of the form include a pencil shape and a mechanical pencil shape. Among them, a resin shaft type eyebrow pencil and an eyeliner pencil that are directly poured into the resin shaft are preferable.

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited thereto. Unless otherwise specified, the amount is shown in mass%.
Prior to the description of the examples, the effect test method used in the present invention will be described.

(1) Evaluation test for smoothness and goodness of makeup A 10-panel use test was conducted on the smoothness at the time of application and the goodness of makeup after application by each panel. The average value was calculated from the total score of all the panels for each sample, and judged according to the following four-step criteria.
6: Very good 5: Good 4: Somewhat good 3: Normal 2: Somewhat bad 1: Bad 0: Very bad

(4 step criteria)
5.2 or more: ◎ (very good)
3.2 or more and less than 5.2: ○ (good)
1.2 or more and less than 3.2: △ (Neither can be said to be slightly bad)
Less than 1.2: x (defect)

(2) Hardness evaluation test For the hardness, use test by 10 panelists, each panel is evaluated in 3 stages by the following evaluation, and the average score is calculated from the total score of all panel members of each sample The determination was made according to the following three-step criteria.
0: Very hard or very brittle.
1: Slightly hard or slightly brittle.
2: Just right.
(3-step criteria)
1.5 or more: ○ (good)
1 or more and less than 1.5: Δ (Neither can be said to be slightly bad)
Less than 1: x (defect)

Examples 1-3, comparative example 1 (eyebrow pencil)
After the solid oil, semi-solid oil, fluid oil, surfactant and antioxidant described in Table 1 below are heated and dissolved at 95 to 100 ° C., the colorant and extender pigment are added and dispersed and mixed, Further, an organosilicone resin solution (trimethylsiloxysilicic acid-50 mass% decamethylcyclopentasiloxane solution) and decamethylcyclopentasiloxane were added and dispersed and mixed at 90 ° C. Then, after deaeration, the resin shaft was filled.

  The smoothness of the eyebrow pencils obtained in Examples 1 to 3 and Comparative Example 1 was evaluated according to the above-described criteria. The results are shown in Table 1.

* 1: Hydrogenated palm oil (including stabilizer) (50 mass%)-Palm kernel oil (30 mass%)-Palm oil (20 mass%), Melting point: 44-50 ° C
* 2: Trimethylsiloxysilicic acid-50 mass% decamethylcyclopentasiloxane solution

  From Table 1, Examples 1 to 3 using dipentaerythrityl hexahydroxystearate, bisdiglyceryl polyacyl adipate-2, or hydroxyalkyl dimer dilinoleyl ether which is component (c) of the present invention are not used Compared with Example 1, it turns out that it is excellent in the smoothness at the time of application | coating.

Examples 4 to 12 (eyebrow pencil)
An eyebrow pencil was prepared in the same manner as described above using the materials described in Table 2 below.
The smoothness at the time of application of the obtained eyebrow pencils of Examples 4 to 12, the goodness of the makeup after application, and the hardness were evaluated according to the above criteria. The results are shown in Table 2.

* 2: Trimethylsiloxysilicate-50 mass% decamethylcyclopentasiloxane solution * 3: Slightly heavy.

In Examples 4 to 6, the blending amount of behenyl alcohol was changed. Since Example 4 was blended at the lower limit of behenyl alcohol, it was slightly softened. Moreover, since Example 6 is a use at the upper limit of behenyl alcohol, it is a little hard.
In Examples 7 to 9, the blending amount of the component (b) trimethylsiloxysilicic acid was changed. Since Example 7 was blended at the lower limit of trimethylsiloxysilicic acid, it was slightly inferior in makeup. It is the result. In addition, since Example 9 is used at the upper limit of trimethylsiloxysilicic acid, it is slightly heavier.
In Examples 10 to 12, the amount of component (c) dipentaerythrityl hexahydroxystearate was changed. Since Example 10 was formulated at the lower limit of dipentaerythrityl hexahydroxystearate, it was slightly smooth. It is inferior result. In addition, since Example 12 is used at the upper limit value of dipentaerythrityl hexahydroxystearate, it is slightly heavier.
On the other hand, Examples 5, 8, and 11 (the prescriptions are the same) have good hardness and smoothness.

  Below, the example of formulation of the pencil-shaped cosmetics of this invention is given. Needless to say, the present invention is not limited by these formulation examples and is specified by the scope of claims.

Formulation Example 1 (eyebrow)
Behenyl alcohol 14.0% by mass
Carnavalo 2.0
Candelilla Row 10.0
Beeswax 2.0
Dipentaerythrityl hexahydroxystearate 10.0
Sorbitan sesquiisostearate 1.0
Trimethylsiloxysilicate-decamethylcyclopentasiloxane solution 15.0
Decamethylcyclopentasiloxane 4.0
Diphenylsiloxyphenyl trimethicone 5.0
Triethylhexanoin 2.0
Tocopherol Mica Residual colorant 32.0

(Production method)
Other than the volatile oil is melted and mixed at 95 to 100 ° C. Next, a volatile oil agent is added, stirred and mixed at 80 ° C. or higher, deaerated and then filled into a predetermined container.

Formulation Example 2 (Eyeliner)
Behenyl alcohol 10.0% by mass
Carnavalo 2.0
Candelilla Row 8.0
Bisdiglyceryl polyacyl adipate-2 10.0
Sorbitan sesquiisostearate 1.0
Trimethylsiloxysilicate-decamethylcyclopentasiloxane solution 22.0
Decamethylcyclopentasiloxane 5.0
Triethylhexanoin 7.0
Diisostearyl malate 3.0
Tocopherol appropriate amount mica residual color material 30.0

(Production method)
Other than the volatile oil is melted and mixed at 95 to 100 ° C. Next, add volatile oil, stir and mix at 80 ° C. or higher, deaerate, and then fill the container.

Formulation Example 3 (lip liner)
Behenyl alcohol 10.0% by mass
Carnavalou 1.0
Candelilla Row 10.0
Hydroxyalkyl dimer linoleyl ether 15.0
Trimethylsiloxysilicate-decamethylcyclopentasiloxane solution 15.0
Decamethylcyclopentasiloxane 3.0
Hydrogenated polyisobutene 3.0
Triethylhexanoin 12.0
Diisostearyl malate 3.0
Tocopherol appropriate amount mica residual color material 25.0

(Production method)
Other than the volatile oil is melted and mixed at 95 to 100 ° C. Next, a volatile oil agent is added, stirred and mixed at 80 ° C. or higher, deaerated, and then filled into a predetermined container.

Claims (1)

(A) 5-20% by mass of behenyl alcohol;
(B) 5-20% by mass of trimethylsiloxysilicic acid,
(C) A semi-solid oil component having a melting point of 30 ° C. to 50 ° C. of one or more selected from dipentaerythrityl hexahydroxystearate, bisdiglyceryl polyacyl adipate-2, and hydroxyalkyl dimer linoleyl ether is 1 to 20% by mass,
A pencil-shaped cosmetic characterized by comprising