JP2000053530A - Oil in oil type emulsifying composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject emulsifying composition useful as a lipstick composition improved in secondary adhesion-free effect and gloss after coating by including a continuous phase oil and a disperse phase oil, which are not mutually melted, at a specific ratio. SOLUTION: This emulsifying composition is obtained by including (A) a continuous phase oil and (B) a disperse phase oil which are not mutually melted at 0.05-0.5 blend weight ratio of the component B to components A and B. The component A is preferably a silicone-based oil comprising a silicone-based film agent, a volatile silicone oil, nonvolatile silicone-based liquid oil and an emulsifying agent. It is preferable that the siliconebased film agent is a silicone resin and the volatile silicone oil is a cyclic silicone and the nonvolatile silicone- based liquid oil is a silicone compound (having 50 cs viscosity at 25 deg.C) whose molecular weight is about 3,000 and the emulsifying agent is a silicone-based emulsifying agent. The component B comprises preferably an ester oil which is not mutually melted with the component A and a coloring material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an oil-in-oil type emulsified composition, and more particularly to an effect of reducing secondary adhesion of a lipstick composition and improving gloss after application.

[0002]

2. Description of the Related Art A problem with the conventional lipstick composition is that after the lipstick is applied to the lips, the lipstick is transferred to a portion such as a cup which comes into contact with the lips, and secondary adhesion is a problem. On the other hand, a lipstick composition having a so-called secondary adhesion-less effect, which hardly causes secondary adhesion, has been developed. For example, a composition comprising a volatile silicone oil, a silicone resin and a non-volatile oil has been disclosed in JP-A-9-48709. No., published in Japanese Unexamined Patent Publication No. The lipstick composition having a secondary adhesion-less effect is obtained by dispersing an oil having a plasticizing ability to a silicone resin into a non-plasticized oil as a plasticized oil. After being blended in a large amount as a co-solvent, a plasticized oil component and a non-plasticized oil component were blended in an appropriate ratio, and the composition was designed in a uniform bulk system.

[0003]

However, in recent years, there has been a demand for a lipstick composition having an improved secondary adhesion-less effect and improved gloss after application.

[0004]

Means for Solving the Problems In order to achieve the above object, the present inventors have conducted intensive studies. As a result, a silicone coating agent, a volatile silicone oil, and a specific non-volatile liquid silicone oil were used. It has been found that an oil-in-oil emulsion composition comprising a continuous phase oil component consisting of the following and a dispersed phase of an ester oil, which is a non-volatile oil component incompatible with the continuous phase oil component, achieves this object, and completed the present invention.

That is, the oil-in-oil emulsified composition of the present invention comprises a continuous phase oil component and a dispersed phase oil component that are insoluble in each other, and the compounding weight ratio of dispersed phase oil component / (dispersed phase oil component + continuous phase oil component) is 0. 0.05 to 0.5.

In the oil-in-oil emulsion composition of the present invention, the dispersed phase oil preferably comprises a continuous phase oil, an insoluble ester oil, and a coloring material.
In the oil-in-oil type emulsion composition of the present invention, the continuous phase oil is a silicone oil comprising a silicone coating agent, a volatile silicone oil, a non-volatile silicone liquid oil, and an emulsifier. Is preferred.

In the oil-in-oil type emulsified composition of the present invention, in the silicone oil of the continuous phase, the silicone coating agent is a silicone resin, the volatile silicone oil is a cyclic silicone, and the non-volatile liquid The silicone oil has a molecular weight of about 3,000 (viscosity 50c at 25 ° C).
s) The silicone compound described above, wherein the emulsifier is a silicone-based emulsifier, and the solid portion of the silicone-based film agent is 20 to 32% by weight, and the nonvolatile silicone liquid oil component is 5 to 15% by weight based on the whole composition. %, More than 0.1% by weight and not more than 5% by weight of emulsifier.

[0008] In the oil-in-oil emulsion composition of the present invention, the ester oil component in the dispersed phase oil component is preferably castor oil. In the oil-in-oil type emulsion composition of the present invention, the compounding weight ratio of (non-volatile silicone liquid oil component / silicone coating agent) in the continuous phase oil component is 0.2 to 0.2.
Preferably it is 0.6. The oil-in-oil emulsion composition of the present invention is a lipstick composition.
Further, in the oil-in-oil type emulsion composition of the present invention, it is preferable to mix less than 15% by weight of wax in the continuous phase oil component of the lipstick composition.

[0009]

Embodiments of the present invention will be described below in detail. The present invention has been developed through the following processes. (1) It was found that the luster of a lipstick of the type using a silicone resin as an adhesive has a correlation with the luster of the silicone resin film when the solvent is volatilized to form a film. Therefore, in order to give gloss to the silicone resin, an oil component having a high solubility in volatile cyclic silicone oil, a low plasticity of the silicone resin, and a high secondary adhesion-free effect even when blended in a large amount was searched. . As a result, non-volatile silicone-based liquid oils are most preferred, and among them, oils with a molecular weight of 3,000 or more, unless blended in large amounts,
It was found that it acts as a non-plasticized oil component, has good compatibility with volatile cyclic silicones, and gives gloss and flexibility to the silicone resin film, so that it corresponds to the target oil component.

(2) The optimum blending amount of the non-plasticized oil component that gives a certain amount of plasticized oil or less (within the range in which the secondary adhesion-less effect is not impaired) while maintaining a certain amount was studied. The non-volatile silicone-based liquid oil component, which corresponds to a polishing component, has been further devised as follows. In other words, even in the case of using an oil that has extremely poor solubility with the silicone-based oil even in the non-plasticized oil, the oil is separated from the phase of the silicone-based oil containing the volatile oil, but even in this case, the silicone-based emulsifier is used. In addition, by emulsifying the separated oil phase, the continuous phase becomes a silicone-based oil-phase emulsified composition containing a silicone oil-containing phase containing a silicone resin.

Furthermore, surprisingly, when a coloring agent is blended with the composition, the coloring agent is dispersed in the ester oil phase, which is a disperse phase, due to surface wetting, so that the coloring agent is added to the silicone resin after coating and drying. It was also found that the shape was covered, and the secondary adhesion-less effect was significantly improved. This means that a large amount of lubricating oil is blended, that is, there is a great effect on both gloss application and improvement of the secondary adhesion less effect. From the above, it has become possible to obtain a lipstick composition that can simultaneously satisfy the gloss after application and the secondary adhesion-less effect by applying a large amount of glossy oil.

Next, one embodiment (lipstick composition) of the oil-in-oil type emulsion composition of the present invention obtained through such a development process
Is shown in FIG. As can be seen from the figure, the present invention is an oil-in-oil emulsion composition comprising two oil phases. Thus, the components used in the present invention will be described separately for a continuous phase and a dispersed phase.

<Continuous Phase Component> Examples of the silicone-based coating agent suitably used in the present invention include silicone resin, silicone rubber, fluorine-modified silicone resin, and alkyl-modified silicone resin, and a silicone resin is particularly desirable. Specifically, the average formula (1) RnSiO _{(4-n) / 2} (1) (R represents a hydrocarbon group of 1 to 6 or a phenyl group, and n represents a number of 1.0 to 1.8. Values are shown.). This silicone resin is R
₃ SiO _{1/2 units, R} 2 SiO units, made from a suitable combination of RSiO _2/3 units and SiO ₂ units, preferably has an average molecular weight of up to about 1,500 to 20,000.

The amount of the solid portion of the silicone coating agent is 20 to 32% by weight, more preferably 22 to 30% by weight, based on the whole composition. If the amount is less than 20% by weight, the secondary adhesion-less effect may be inferior. If the amount is more than 32% by weight, a sticky feeling may be caused, which is not preferable.

The volatile silicone liquid oil preferably used in the present invention includes linear polysiloxanes such as decamethyltetrasiloxane, hexamethyldisiloxane and dodecamethylpentasiloxane, octamethylcyclotetrasiloxane, and decamethylcyclopentane. Cyclic polysiloxane such as siloxane; Also,
Light liquid paraffins such as Shellsol (Shell Chemical) and Isopar (Esso Chemical), which are often used in conventional lipstick compositions, are not preferable in terms of safety, but are more easily dissolved with the non-volatile oil component of the dispersed phase. In many cases, the whole becomes a uniform phase, and the secondary adhesion-less effect is lost, which is not suitable.

As the non-volatile silicone liquid oil used in the present invention, a non-volatile oil which does not dissolve the solid part of the silicone coating agent is used. Specifically, dimethyl polysiloxane, methylphenyl polysiloxane and the like are used. Examples include polysiloxane. However, if the molecular weight of these non-volatile silicone oils is not high to some extent, the solid portion of the silicone coating agent will be dissolved and the film will not be formed, and the secondary adhesion-less effect will be impaired. 5,000 (viscosity about 25 cs at 25 ° C.) or more,
More preferably, it has a molecular weight of about 5,000 (viscosity at 25 ° C. about 100 cs) or more.

The amount of the non-volatile silicone liquid oil is preferably 5 to 15% by weight, more preferably 7 to 12% by weight, based on the whole composition. If the amount of the oil component is too small, the luster may be insufficient or the makeup may be inferior. If the amount is too large, the silicone resin film may be dissolved and the film may not be formed. Absent.

The compounding weight ratio of (non-volatile silicone liquid oil component / silicone coating agent) to the oil-in-oil emulsion composition of the present invention is preferably 0.2 to 0.6.
If it is larger than 0.6, the wax may be difficult to dissolve, and if it is smaller than 0.2, the gloss may be poor.

The emulsifier used in the present invention is a lipophilic surfactant that dissolves in the silicone film phase, and a silicone surfactant such as a polyoxyalkylene-modified organopolysiloxane is preferable. Among them, a surfactant having a polyoxyalkylene-modified organopolysiloxane having an alkylene oxide content of 11 to 50% by weight is preferred. The amount of the emulsifier in the present invention is preferably more than 0.1% by weight and 5% by weight or less based on the whole composition. If the amount is less than 0.1% by weight, poor emulsification may occur. Even if the amount is more than 5% by weight, the effect as an emulsifier does not increase so much.

Various waxes (solid or semi-solid oily substances) can be blended with the continuous phase oil. In the case of a liquid type, it is not always necessary to mix a wax, but in the case of preparing a compact type or a stick type, it is necessary to mix a wax. As the wax, any of natural and synthetic products can be used, for example, paraffin wax, polyethylene wax, ethylene propylene copolymer, microcrystalline wax, ceresin, ozokerite, or hydrocarbon wax such as Fischer-Tropsch wax, or And mocro, hardened tallow, carnauba wax, candelilla wax, rice wax, beeswax, hardened jojoba oil, lanolin, petrolatum, and the like. The above raw materials may be used alone or in combination of two or more.

Since the wax having higher solubility in the silicone oil has a solidifying power, it is preferable to use the hydrocarbon wax. The compounding amount of the wax is preferably 15% by weight or less, but a large amount of the wax is less than 12% by weight, and
% By weight or less is more preferable.

<Dispersed phase component> As the continuous phase oil and the insoluble oil, ester oils having a double bond in the molecule and having a relatively large molecular weight are preferably used. Castor oil, jojoba oil, olive oil, lanolin, macadamia nut Natural oil content of oil, oleic acid, alkyl oleate, alkyl linoleate and the like,
Castor oil is most preferred. These oils may be used as a mixture of two or more kinds. The amount of the continuous phase oil component and the insoluble oil component as described above is 5 to 5
50% by weight, preferably 5 to 40% by weight, more preferably 5 to 30% by weight is suitable. If the amount is less than 5% by weight, it is insufficient to disperse the color material or give a gloss, and if the amount is more than 30% by weight, the makeup lasts poorly.

Since these oils are difficult to dissolve in the continuous phase oil, even if these oils are mixed with each other or other non-volatile oils, if the amount is within a certain range, phase separation is performed within the operating temperature range. State can be maintained. Therefore, to the extent that a phase-separated state can be maintained,
As long as the secondary adhesion-less effect is not impaired, a non-volatile oil component compatible with the above-mentioned oil component can be blended. As such an oil, any oil generally used for lipsticks can be used. For example, liquid paraffin, squalane, glyceryl diisostearate, trimethylolpropane tri-2-ethyl isostearate, isopropyl myristate, cetyl-2-ethylhexanoate, glyceryl triisostearate, 2-
Examples include heptylundecyl palmitate, methylpolysiloxane, polybutene, glycerin triisostearate, diisostearyl malate, and the like, and one or more of them are arbitrarily selected.

In the present invention, the coloring material is consequently incorporated into the dispersed phase. The coloring material may be any coloring material commonly used for lipsticks, and may be in the form of powder or rake (in a state in which oil is kneaded). Regardless of whether the pigment is an inorganic pigment, an organic pigment, or a pearlescent agent, it is easier to wet the dispersed phase oil than the continuous phase oil (silicone-based oil). However, even when the pigment is first added to the continuous phase oil, the pigment eventually spontaneously shifts to the dispersed phase oil.
Although the point that the pigment is dispersed and blended in the dispersed phase oil component is an important point of the present invention, the dispersed phase oil component is further separated when mixed with the continuous phase oil component. It is necessary to mix the disperse phase component in an amount that can disperse the necessary coloring material.

The oily cosmetic of the present invention contains, in addition to the above essential components, oils, waxes, powders, pigments, dyes, polymer compounds, fragrances, surfactants, Inhibitors, preservatives, cosmetic ingredients, and the like can be appropriately added as long as the effects of the present invention are not impaired.

[0026]

EXAMPLES In the process of inventing a lipstick composition which is particularly excellent in a secondary adhesion less effect and which is also excellent,
The following tests were performed. In addition, all compounding amounts are weight%, and the viscosity of silicone oil is a thing at 25 degreeC.

[0027]Comparison between conventional technology and the present invention  Example 1 of the present invention shown in Table 1, silicone plasticizer plasticization
Conventional composition containing low viscosity silicone oil
Comparative Example 1 which is a product, and non-volatile
Comparative Example 2 in which the amount of the oil-forming component was increased was prepared and evaluated as follows.
Was done.

<Evaluation Criteria><Gloss> Gloss was evaluated about 20 minutes after 20 panels were used. ◎: 18 or more out of 20 respondents who answered “Glossy” ○: 14-17 out of 20 respondents who answered “Glossy”
People △: 6 to 13 respondents who answered “there is gloss”
People ×: 0 to 5 respondents who answered “there is gloss”
Man

<Effect of Secondary Adhesion> The panel was used by 20 persons, and after about 20 minutes, the amount of lipstick transferred to the coffee cup when drinking coffee with a white coffee cup was evaluated. ◎: 18 or more out of 20 answered “no color transfer” ○: 14 to 1 out of 20 answered “no color transfer”
7 △: “No color transfer”, out of 20 6-1
3 people ×: 0 out of 20 people answered “no color transfer”
5 people

<Sticky> Twenty panels were used, and the stickiness felt on the lips after about 20 minutes was evaluated. ◎: 1 out of 20 respondents who answered “I do not feel sticky”
8 or more ○: 1 out of 20 people answered “I do not feel sticky”
4 to 17 △: Out of 20 people answered “I do not feel sticky”
6 to 13 ×: Out of 20 people answered “I do not feel sticky”
0-5

[0031]

[Table 1]  Example 1 Comparative Example 1 Comparative Example 2  <Continuous phase> Silicone coating agent Silicone resin^{* 1} 25.0 25.0 25.0 Non-volatile silicone liquid oil dimethylpolysiloxane 1,000 cs 10.0--dimethylpolysiloxane 20 cs-10.0 10.0 emulsifier Polyoxyalkylene-modified organopolysiloxane^{* 2} 1.0--Volatile Silicone Oil Tecamethylcyclopentasiloxane 42.0 43.0 33.0 Wax Celesin Wax 2.0 2.0 2.0 <Dispersed Phase> Non-volatile oil (ester oil) Castor oil 15 0.0 15.0 25.0 Coloring material Lisor Rubin BCA (BaSO₄) 5.0 5.0 5.0  Gloss ◎ △ ○ Secondary adhesion less effect ◎ △ × Sticky ○ ○ ○  * 1: having a molecular weight of about 5,000 to 6,000, and (CH₃)₃SiO_1/2: SiO₂Average formula (CH = 0.8: 1)₃)_1.33SiO_1.34Silicone resin represented by same as below. * 2: The same applies to SC9450N (manufactured by Shin-Etsu Silicone Co., Ltd.).

-Production method-In the examples, a silicone resin, a non-volatile silicone liquid oil, and a silicone surfactant are added to a volatile silicone oil, and the mixture is stirred and dissolved. Further, the wax is added, and the mixture is heated to a temperature higher than the melting temperature of the wax and dissolved by stirring (continuous phase). The coloring agent is stirred and dispersed in the ester oil to form a dispersed phase, which is added to the continuous phase to emulsify and then filled in a container. The same applies to the compositions of Test Examples and Examples shown below.
In the comparative example, all components other than the wax are stirred and dissolved. Further, wax was added, heated to a temperature higher than the melting temperature of the wax, and dissolved by stirring to prepare.

As can be seen from the above results, the prior art 1
In Comparative Examples 1 and 2, which are phase-type compositions, it can be seen that there is still room for improvement in terms of secondary adhesion less effect and gloss. In contrast, Example 1 of the oil-in-oil type emulsified composition of the present invention was found to be excellent in luster and secondary adhesion less effect and less sticky. In addition, comparing Example 1 and Comparative Example 2 in particular, Comparative Example 2 shows that the same amount of the luster component (continuous phase non-volatile silicone liquid oil component + dispersed phase non-volatile oil component) of the luster component of Example 1 ( It is found that the composition of the present invention contains a dispersed phase (non-volatile oil component), but is significantly inferior in the secondary adhesion less effect than the present invention.

[0034]Amount of dispersed phase oil  Next, various amounts of the non-volatile oil in the dispersed phase oil were changed.
A lipstick composition was prepared and inspected for the amount of dispersed phase oil.
Debated.

[0035]

[Table 2]  Test example Test example Test example Test example Test example Test example 1 2 3 4 5 6  <Continuous phase> Silicone coating agent Silicone resin 25.0 25.0 25.0 25.0 25.0 25.0 Non-volatile silicone liquid oil Dimethylpolysiloxane 1000cs 10.0 10.0 10.0 10.0 10.0 10.0 Volatile silicone oil Tecamethylcyclopentasiloxane 57.0 53.0 48.0 33.0 28.0 8.0 Emulsifier Polyester Oxyalkylene-modified organopolysiloxane 1.0 1.0 1.0 1.0 1.0 1.0 Wax Celesin wax 2.0 2.0 2.0 2.0 2.0 2.0 <Disperse phase> Coloring material Lisorleuridine BCA (BaSO₄) 4.0 4.0 4.0 4.0 4.0 4.0 Non-volatile oil Castor oil 1.0 5.0 20.0 30.0 40.0 50.0  Gloss × ○ ◎ ◎ ◎ ◎ Secondary adhesion less effect ◎ ◎ ◎ ◎ ○ △ Sticky ○ ○ ○ ○ ○ ○

From the above results, it can be seen that if the content of the non-volatile oil in the dispersed phase is less than 5% by weight, the luster is inferior. Also, it is found that when the content is more than 50% by weight, the secondary adhesion less effect becomes worse. Therefore, the amount of the nonvolatile oil component of the present invention is 5 to 50% by weight, preferably 5 to 40% by weight, and more preferably 5 to 30% by weight.
It can be seen that it is.

[0037]Non-volatile silicone liquid oil viscosity  Next, the viscosity of the non-volatile silicone liquid oil (polymerization
Lipstick compositions of different degrees)
The viscosity (degree of polymerization) of the corn liquid oil was studied.
The viscosity is at 25 ° C.

[0038]

[Table 3]  Test example Test example Test example Test example Test example Test example 7 8 9 10 11 12  <Continuous phase> Silicone coating agent Silicone resin 25.0 25.0 25.0 25.0 25.0 25.0 Non-volatile silicone liquid oil dimethylpolysiloxane 6 cs-----10.0 20 cs 10.0-----50 cs-10.0---- 1,000 cs--10.0---5,000 cs---10.0--100,000 cs----10.0-Emulsifier Polyoxyalkylene-modified organopolysiloxane 1.0 1.0 1.0 1.0 1.0 1.0 Volatile silicone oil Tecamethylcyclopentasiloxane 42.0 42.0 42.0 42.0 42.0 42.0 Wax Seresin wax 2.0 2.0 2.0 2.0 2.0 2.0 <Dispersed phase> Non-volatile oil Castor oil 16.0 16.0 16.0 16.0 16.0 16.0₄) 4.0 4.0 4.0 4.0 4.0 4.0  Gloss ◎ ◎ ◎ ◎ ◎ ◎ Secondary adhesion less effect △ ○ ○ ○ ○ × Sticky △ ○ ○ ○ ○ △

From the above results, it can be seen that Test Example 7 in which 20 cs dimethylpolysiloxane having a viscosity lower than 50 cs was used for the non-volatile silicone liquid oil was slightly inferior in terms of the secondary adhesion-free effect and stickiness. . Also,
In Test Example 12 in which volatile silicone having a viscosity of 6 cs was used instead of the non-volatile silicone-based liquid oil, it was found that an excellent secondary adhesion-less effect as in the present invention was not obtained and that some stickiness was also felt. For these, the viscosity is 50 cs
Test Examples 8 to 11 using a non-volatile silicone-based liquid oil having a molecular weight of 3,000 or more show an excellent gloss-free secondary adhesion effect and little stickiness.

[0040]Non-volatile silicone liquid oil content
And non-volatile silicone liquid oil / silicone coating
Agent weight ratio  Next, the amount of non-volatile silicone liquid oil
Preparation of various lipstick compositions
Amount of non-volatile silicone liquid oil
The mixing weight ratio of the silicone / silicone coating agent was examined.

[0041]

[Table 4]  Test example Test example Test example Test example Test example Test example 13 14 15 16 17 18  <Continuous phase> Silicone coating agent Silicone resin 25.0 25.0 25.0 25.0 25.0 25.0 Non-volatile silicone liquid oil Dimethylpolysiloxane 1000cs 4.0 5.0 7.0 12.0 15.0 16.0 Volatile silicone oil Tecamethylcyclopentasiloxane 48.0 47.0 45.0 40.0 37.0 36.0 Emulsifier Oxyalkylene-modified organopolysiloxane 1.0 1.0 1.0 1.0 1.0 1.0 Wax Celesin wax 2.0 2.0 2.0 2.0 2.0 2.0 <Disperse phase> Coloring agent₄) 4.0 4.0 4.0 4.0 4.0 4.0 Non-volatile oil Castor oil 16.0 16.0 16.0 16.0 16.0 16.0  Non-volatile silicone liquid oil / silicone coating agent 0.16 0.20 0.28 0.48 0.60 0.64  Gloss △ ○ ◎ ◎ ◎ ◎ Secondary adhesion less effect ◎ ◎ ◎ ◎ ○ △ Sticky ○ ○ ○ ○ ○ ○

From the above results, if the amount of the non-volatile silicone liquid oil is less than 5% by weight, the luster is inferior.
It can be seen that if the blending amount is more than 15% by weight, the secondary adhesion less effect becomes worse. Therefore, the amount of the non-volatile silicone liquid oil is 5 to 15% by weight, more preferably 7 to 15% by weight.
It is understood that 〜12% by weight is preferable.

Further, from the above results, the compounding weight ratio of the non-volatile silicone liquid oil / silicone coating agent was 0.6.
In the following, it is understood that the secondary adhesion-less effect is excellent.
In addition, it is understood that the gloss is excellent at 0.2 or more.
Therefore, it is understood that 0.2 to 0.6 is preferable.

[0044]Amount of silicone coating agent  Next, various ports having different amounts of the silicone-based coating agent were used.
Preparation of reddish composition and blending of silicone coating agent of the present invention
The amount was checked.

[0045]

[Table 5]  Test example Test example Test example Test example Test example Test example Test example 19 20 21 22 23 24  <Continuous phase> Silicone coating agent Silicone resin 17.0 20.0 22.0 30.0 32.0 33.0 Non-volatile silicone liquid oil Dimethylpolysiloxane 1000cs 10.0 10.0 10.0 10.0 10.0 10.0 Volatile silicone oil Tecamethylcyclopentasiloxane 50.0 47.0 45.0 37.0 35.0 34.0 Emulsifier Polyester Oxyalkylene-modified organopolysiloxane 1.0 1.0 1.0 1.0 1.0 1.0 Wax Celesin wax 2.0 2.0 2.0 2.0 2.0 2.0 <Disperse phase> Coloring agent₄) 4.0 4.0 4.0 4.0 4.0 4.0 Non-volatile oil Castor oil 16.0 16.0 16.0 16.0 16.0 16.0  Gloss × ◎ ◎ ◎ ◎ ◎ Secondary adhesion less effect × ○ ◎ ◎ ◎ ◎ Sticky × ○ ○ ○ △ ×

From the above results, it can be seen that when the amount of the silicone-based coating agent is less than 20% by weight, the secondary adhesion-less effect is inferior, and when the amount exceeds 32% by weight, a sticky feeling is obtained. Therefore, it is understood that the blending amount of the silicone-based film agent is 20 to 32% by weight, more preferably 22 to 30% by weight.

[0047]Emulsifier content  Next, various lipstick compositions with different amounts of emulsifier were prepared.
The emulsifier of the present invention was examined.

[0048]

[Table 6]  Test example Test example Test example 25 26 27  <Continuous phase> Silicone-based film agent Silicone resin 25.0 25.0 25.0 Non-volatile silicone liquid oil Dimethylpolysiloxane 1000cs 10.0 10.0 10.0 10.0 Volatile silicone oil Tecamethylcyclopentasiloxane 42. 9 42.7 38.0 Emulsifier Polyoxyalkylene-modified organopolysiloxane 0.1 0.3 5.0 Wax Celesin wax 2.0 2.0 2.0 <Disperse phase>₄5.0) 5.0 5.0 Non-volatile oil Castor oil 15.0 15.0 15.0  Luster ○ ◎ ◎ Secondary adhesion less effect × ○ ◎ Sticky △ ○ ○ Emulsified poor poor good good good

From the above results, it is understood that the amount of the emulsifier of the present invention is preferably more than 0.1% by weight, and that the amount of up to 5% by weight is not a problem.

[0050]Wax content  Next, various lipstick compositions with different amounts of wax compounded
It was prepared and the wax content was examined.

[0051]

[Table 7]  Test example Test example Test example Test example Test example 28 29 30 31 32  <Continuous phase> Silicone coating agent Silicone resin 25.0 25.0 25.0 25.0 25.0 Non-volatile silicone liquid oil Dimethylpolysiloxane 1000cs 10.0 10.0 10.0 10.0 10.0 Volatile silicone oil Tecamethylcyclopentasiloxane 44.0 39.0 37.0 32.0 29.0 Emulsifier Polyoxyalkylene modified Orcanopolysiloxane 1.0 1.0 1.0 1.0 1.0 Wax Celesin wax-5.0 7.0 12.0 15.0 <Disperse phase> Coloring agent₄) 5.0 5.0 5.0 5.0 5.0 Non-volatile oil Castor oil 15.0 15.0 15.0 15.0 15.0  Gloss ◎ ◎ ○ ○ × Secondary adhesion less effect ◎ ◎ ◎ ◎ ◎ Sticky ○ ○ ○ ○ ○

From the above results, it can be seen that the amount of the wax compounded is preferably less than 15% by weight, more preferably 12% by weight or less from the viewpoint of luster.

Next, the composition and evaluation of the examples of the present invention will be shown. [Example 2] Lipstick <Continuous phase> Silicone resin 10.0 Dimethylpolysiloxane (1,000 cs) 10.0 Octamethylcyclotetrasiloxane 41.0 Silicone surfactant 2.0 Microcrystalline wax 1.5 Carnauba wax 0 5.5 <dispersed phase> Bengala 5.0 Jojoba oil 15.0 (Evaluation) Gloss: ◎ Secondary adhesion less effect: ◎ Sticky: ○

Example 3 Lipstick <Continuous phase> Silicone resin 10.0 Dimethylpolysiloxane (1,000 cs) 10.0 Decamethylcyclopentasiloxane 43.0 Silicone surfactant 2.0 <Disperse phase> Lysole rubin BCA (BaSO ₄ ) 4.0 Castor oil 16.0 (Evaluation) Gloss: ◎ Secondary adhesion less effect: Stickiness: ○

[0055]

As described above, the oil-in-oil type emulsified composition according to the present invention comprises a continuous phase oil component and a dispersed phase oil component that are insoluble in each other, and is composed of a dispersed phase oil component / (dispersed phase oil component + continuous phase). (Oil component) is 0.05 to 0.5. In particular, disperse phase oil is blended with ester oil and colorant that are not mutually soluble with continuous phase oil,
By blending a silicone-based film agent, a volatile silicone oil, a non-volatile silicone-based liquid oil, and an emulsifier with the continuous-phase oil, a lipstick composition that imparts a sufficient secondary adhesion-free effect and luster can be obtained. .

[Brief description of the drawings]

FIG. 1 is a view showing the structure of a lipstick composition which is one embodiment of an oil-in-oil emulsion composition of the present invention.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Katsuyuki Kaneko 1050 Nippa-cho, Kohoku-ku, Yokohama-shi, Kanagawa F-term in Shiseido Daiichi Research Center Co., Ltd. 4C083 AA121 AA122 AB232 AB352 AC012 AD162 AD171 AD172 CC13 DD31 EE07

Claims (8)

[Claims] 1. A composition comprising a continuous phase oil component and a dispersed phase oil component that are insoluble in each other, and a compounding weight ratio of dispersed phase oil component / (dispersed phase oil component + continuous phase oil component) of 0.05 to 0.5. A characteristic oil-in-oil emulsion composition. 2. The oil-in-oil emulsion composition according to claim 1, wherein the dispersed phase oil component comprises a continuous phase oil component, an ester oil component that is insoluble in each other, and a coloring material. 3. The composition according to claim 1, wherein the continuous phase oil comprises a silicone coating agent, a volatile silicone oil, a non-volatile silicone liquid oil, and an emulsifier. An oil-in-oil type emulsified composition, characterized in that: 4. The composition according to claim 3, wherein in the silicone oil in the continuous phase, the silicone coating agent is a silicone resin, the volatile silicone oil is a cyclic silicone, and the non-volatile liquid silicone. The system oil is a silicone compound having a molecular weight of about 3,000 (viscosity at 25 ° C. of 50 cs) or more, the emulsifier is a silicone emulsifier, and the solid portion of the silicone film agent is 20 to 32 with respect to the entire composition. An oil-in-oil type emulsified composition characterized by comprising 5% by weight, 5 to 15% by weight of a nonvolatile silicone liquid oil component, and more than 0.1% by weight and 5% by weight or less of an emulsifier. 5. The oil-in-oil emulsion composition according to claim 2, wherein the ester oil in the dispersed phase oil is castor oil. 6. The composition according to claim 3, wherein the weight ratio of (non-volatile silicone liquid oil / silicone coating agent) in the continuous phase oil is from 0.2 to 0.2.
An oil-in-oil emulsion composition characterized by being 0.6. 7. An oil-in-oil emulsion composition, wherein the composition according to any one of claims 1 to 6 is a lipstick composition. 8. The oil-in-oil type emulsion composition according to claim 7, wherein the amount of the wax in the continuous phase oil is less than 15% by weight.