JPH1036223A - Composition for lipstick - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare a composition for a lipstick reduced in secondary adhesion without changing the feeling of use even when used for a long period. SOLUTION: This composition for a lipstick comprises a volatile oily ingredient, a water repellent polymer soluble therein, a powder in a state thereof in the absence of the volatile oily ingredient coverable with the water repellent polymer and a nonvolatile oily ingredient. At least a part of the powder is silica and a film formed according to the following method is in a state of the oily ingredient phase 12 dispersed in the solid phase 10 and the continuous film formation ratio of the solid phase 10 is 60-80%. The method for forming the film comprises mixing the volatile oily ingredient with the water repellent polymer and the nonvolatile oily ingredient at the same ratios as the contents thereof in the composition, prepare a mixture sample, then casting 0.5g resultant mixture sample into a metallic medium-sized dish of 3.0×4.6×0.3cm size, allowing the sample to stand at 60 deg.C for 3hr and volatilizing the volatile oily ingredient therefrom.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lipstick composition, and more particularly, to an improvement in secondary adhesion and a feeling of use of a lipstick composition.

[0002]

2. Description of the Related Art Lipsticks are one of the most popular cosmetics, but due to the nature of being applied to the lips, they are required to be non-irritating and harmless to the lips and have no unpleasant taste or smell. . By the way, recently, after applying lipstick to the lips, there is a strong demand for an improvement in so-called secondary adhesion in which the lipstick is transferred to a portion such as a cup which comes into contact with the lips. Therefore, in recent years, as a “cosmetic composition with improved anti-depression property” having improved secondary adhesion, Japanese Patent Application Laid-Open No.
What is described in 99630 gazette is reported.
This cosmetic composition is characterized by containing a volatile solvent, a silicone resin, a wax, a powder, and an oil component. And if such a cosmetic composition is used,
The secondary adhesion is improved.

[0003] However, the cosmetic composition still has problems in elongation at the time of application, smooth feeling of use, and water retention during use. A lipstick composition that solves these problems has been reported in JP-A-7-267826. This lipstick composition contains a volatile oil component, a water-repellent polymer, a powder, and a non-volatile oil component, and has at least a portion of the powder made of silica to improve secondary adhesion. At the same time, it is possible to realize a smooth feeling of use.

[0004]

However, even when the lipstick composition is applied for a long time after application, the powderiness peculiar to the resin film becomes apparent. Therefore, development of a lipstick composition in which the feeling of use of the coating does not change even after long use has been desired. The present invention has been made in view of the above-mentioned problems of the prior art, and an object of the present invention is to provide an excellent lipstick composition that has improved secondary adhesion and does not change the feeling of use even when used for a long time. Is to do.

[0005]

Means for Solving the Problems In order to achieve the above object, the present inventors have conducted intensive studies, and as a result, the composition for lipstick was formed so that the film formed in the composition for lipstick was a partially continuous film. By adjusting the base of the product and further blending silica as an essential component, it was found that a secondary lipstick composition with improved secondary adhesion and a long-lasting lipstick composition with no change in use feeling was obtained. Was completed.

That is, the lipstick composition of the present invention comprises a volatile oil, a water-repellent polymer dissolved in the volatile oil, and a powder which can be coated on the water-repellent polymer in a state where the volatile oil is not present. Body, and a non-volatile oil component having compatibility with the volatile oil component, wherein at least a part of the powder is silica, and a film formed by the following method has an oil component phase dispersed in a solid phase. And the solid phase has a continuous film formation rate of 60 to 80%.

[Method for Forming Coating] In the same ratio as the ratio contained in the composition, volatile oil,
A water repellent polymer and a non-volatile oil are mixed to prepare a mixed sample. 2. 0.5 g of the mixed sample is poured into a 3.0 × 4.6 × 0.3 cm metal middle plate and left at 60 ° C. for 3 hours to evaporate volatile oil. Also. It is preferable that the lipstick composition contains 10 to 40% by weight of a nonvolatile oil component. In addition, in the lipstick composition, silica is added to 1.
It is preferable to contain 0 to 3.0% by weight. In the lipstick composition, two or more kinds of non-volatile oils having different plasticizing powers for the water-repellent polymer are used to adjust a continuous film formation rate. In the lipstick composition, the volatile oil component is a volatile silicone oil,
Preferably, the water repellent polymer is a silicone resin. In the lipstick composition, it is preferable that the blending amount of the non-volatile oil in the film-forming component comprising the water-repellent polymer and the non-volatile oil is 50 to 65%.

[0008]

Embodiments of the present invention will be described below. Examples of the volatile oil preferably used in the present invention include chain polysiloxanes such as decamethyltetrasiloxane, hexamethyldisiloxane and dodecamethylpentasiloxane, and cyclic polysiloxanes such as octamethylcyclotetrasiloxane and decamethylcyclopentasiloxane. And light liquid isoparaffins such as Shellsol (Shell Chemical) and Isopar (Esso Chemical).

The water-repellent polymer preferably used in the present invention includes silicone resin, silicone rubber,
Examples thereof include a fluorine-modified silicone resin and an alkyl-modified silicone resin, and a silicone resin is particularly preferable. Specifically,

Embedded image R _n SiO _{(4-n) / 2} (R represents a hydrocarbon group having 1 to 4 carbon atoms or a phenyl group, and n represents a value ranging from 1.0 to 1.8). The silicone resin represented is mentioned. This silicone resin is R
₃ SiO _1/2 unit, R ₂ SiO unit, RSiO _2/3 unit, S
Consisting of an appropriate combination of iO ₂ units, about 1,500
It preferably has an average molecular weight of up to 20,000.

As the powder suitably used in the present invention, any powder that is usually used in cosmetics can be used. For example, talc, kaolin, sericite, muscovite, phlogopite, Synthetic mica, mica,
Biotite, Lithium mica, vermiculite, magnesium carbonate, calcium carbonate, aluminum silicate, barium silicate, calcium silicate, magnesium silicate, strontium silicate, metal tungstate, magnesium, silica, zeolite, bentonite, barium sulfate, Inorganic powder such as calcined calcium sulfate (calculated gypsum), calcium phosphate, fluorapatite, hydroxyapatite, ceramic powder, boron nitride, titanium dioxide, zinc oxide, polyamide resin powder, nylon powder, polyethylene powder, polypropylene powder, polyester powder, polymethacryl Methyl acid powder, polystyrene powder,
Organic powders such as styrene-acrylic acid copolymer resin powder, silicon resin powder, benzoguanamine resin powder, polytetrafluoroethylene powder, and cellulose powder are exemplified.

[0011] By blending silica as at least a part of these powders, it is possible to satisfactorily improve the secondary adhesion. Further, from the viewpoint of compatibility with silica, it is particularly preferable to use volatile silicone oil as a volatile oil component and silicone resin as a water-repellent polymer.

As the non-volatile oil component suitably used in the present invention, any non-volatile oil having high skin safety can be used. For example, liquid paraffin, squalane, castor oil, olive oil, jojoba oil, glyceryl diisostearate, trimethylolpropane tri-2-ethyl isostearate, isopropyl myristate, cetyl 2-ethylhexanoate, glyceryl triisostearate, 2 heptyl Examples include undecyl palmitate, methylpolysiloxane, polybutene, glycerin triisostearate, diisostearyl malate, and lanolin, and one or more of these are arbitrarily selected. In addition, in the case of producing a stick-like lipstick, it is preferable to add about 5 to 20% by weight of ceresin wax, carnauba wax, polyethylene wax, paraffin wax or the like as a shape-retaining agent.

FIG. 1 is a conceptual diagram of a film formed by a water-repellent polymer and a non-volatile oil component after a volatile oil component is volatilized in the present invention. That is, the film formed in the present invention has a form in which the oil component phase 12 is dispersed in the solid phase 10 composed of the water-repellent polymer and a part of the oil component.
Among the films formed in this way, it was found that the ratio of the continuous film formed by the solid phase 10 (continuous film formation rate) affects the feeling of use of the lipstick. It became clear that it was preferable to be 80%.

If the continuous film formation rate is less than 60%, the secondary adhesion cannot be sufficiently improved even with the addition of silica or the like, and stickiness occurs in the sense of use, which is not preferable. On the other hand, if the continuous film formation rate exceeds 80% by weight, the secondary adhesion can be suppressed by the addition of silica, but the powdery powder will be produced after a long use. The rate of continuous film formation can be adjusted by selecting and using two or more non-volatile oil components having different plasticizing powers for the water-repellent polymer. That is, when a large amount of a non-volatile oil having a high plasticizing power is contained, the continuous film formation rate tends to be low, while
When a large amount of a non-volatile oil having a low plasticizing power is contained, the rate of continuous film formation tends to increase.

Among the non-volatile oils, those having high plasticizing power include glyceryl tri-2-ethylhexanoate, glyceryl diisostearate, diisostearyl malate, cetyl 2-ethylhexanoate, and glyceryl triisostearate. And ester oils such as neopentyl glycol dicaprate, trimethylolpropane trioctanoate, pentaerythrit tetra-2-ethylhexanoate, acetyltriptyl citrate, octyl palmitate, and isocetyl isostearate; methyl polysiloxane; methyl phenyl polysiloxane; Silicon oil, liquid paraffin, squalane and the like. In addition, as the oil having a low plasticizing power, liquid lanolin, polybutene,
Examples include macadamia nut oil, avocado oil, castor oil, petrolatum, cholesteryl hydroxystearate, cholesteryl fatty acid macadamia nut and the like.

From the non-volatile oil components, the amount of each oil component is determined in consideration of the plasticizing power of each oil, and the plasticizing power of the non-volatile oil component as a whole is controlled. Can be adjusted. In the present invention, the continuous film formation rate is within the above preferred range,
In other words, even if it is within the range of 60 to 80%,
The amount of the nonvolatile oil content in the lipstick composition is 10 to 10.
Preferably it is 40% by weight. If the amount of the non-volatile oil is less than 10% by weight, the amount of the film-forming component becomes relatively small, and it may not be possible to form a sufficient film on the lips. On the other hand, if it exceeds 40% by weight,
The amount of the film-forming component becomes relatively large, elongation,
The feeling of use such as stickiness may deteriorate.

Further, when the continuous film formation rate is in the range of 60 to 80% by weight, the compounding amount of the non-volatile oil in the lipstick composition is in the range of 10 to 40% by weight, and water repellency is obtained. When the blending amount of the non-volatile oil in the film-forming component consisting of the polymer and the non-volatile oil is 50 to 65%, not only the feeling of use over time such as powderiness and smoothness, but also
It is also particularly effective in improving the usability during application such as elongation and stickiness.

Further, the lipstick composition according to the present invention contains various drugs such as vitamins A, B ₁ , B ₂ , B ₆ ,
B ₁₂ , C, D, E, F, K, U and salts or derivatives thereof, pantothenic acid and salts or derivatives thereof, biotin,
Royal jelly extract, pyridoxine hydrochloride, nicotinic acid and salts or derivatives thereof, folic acid, vitamins such as γ-oryzanol, stearyl glycyrrhetinate, 1-menthol, camphor, camphor, calamine, indomethacin, methyl salicylate, ethyl aminobenzoate, crotamiton Anti-inflammatory agents such as hinokitiol, glycyrrhetinic acid, glycyrrhizic acid and salts or derivatives thereof, allantoin, azulene, ε-aminocaproic acid, anti-inflammatory agents such as tranexamic acid and salts or derivatives thereof, cystine,
Amino acids such as cysteine, methionine, serine, leucine, tryptophan, amino acid extract,

Hamamelis, Orchid, Sikon, Yarrow, Yarrow, Lilium, Loofah, Safflower, Horse chestnut, Eucalyptus oil, Malonier, β-carotene, Aloe extract, Carrot extract, Licorice extract, Oakaku extract, Chamomile extract, Loquat extract And plant and plant extracts and extracts such as assembly extract, cepharanthin, toki extract, placenta extract, estradiol and salts or derivatives thereof, estrogen such as ethinyl estradiol, cortisone and salts or derivatives thereof, hydrocortisone and salts or derivatives thereof, prednisone Hormonal agents such as corticosteroids such as prednisolone, dexamethasone and betamethasone, diphenhydramine hydrochloride,
An antihistamine such as chlorpheniramine maleate, a bactericide such as benzalkonium chloride, benzethonium chloride, halocarban, chlorhexidine chloride, and the like can be added. The compounding amount of these drugs is preferably mixed in an amount sufficient for each drug to function, and is not particularly limited. However, as an appropriate compounding amount to the lipstick composition, the lipstick composition The content is 0.001 to 5% by weight.

The lipstick composition of the present invention contains various components which are usually blended in cosmetics such as lipstick, for example, antioxidants, ultraviolet absorbers, ultraviolet shielding agents, preservatives, humectants, dyes, fragrances and the like. Can be blended. Further, the shape of the lipstick composition of the present invention is a stick, pencil, gel,
It can be used in the form of a liquid or the like.

[0021]

Next, the present invention will be described in more detail with reference to examples of the present invention. First, the present inventors focused on the ratio of the water-repellent polymer to the non-volatile oil in the composition and the plasticizing power of the non-volatile oil as a whole with respect to the water-repellent polymer. We considered about the improvement. The compositions for lipsticks in Tables 1 to 6 below were prepared, and the continuous film formation rate and various sensory evaluations were performed for each composition. The results are shown in Tables 1 to 6 together with the prescription,
FIG. 2 shows photographs corresponding to the test examples in Tables 1 to 4 among the coating samples in which the continuous coating formation rate was actually measured. The measurement and sensory evaluation of the continuous film formation rate were performed by the following methods.

[Measurement of Continuous Film Formation Ratio] (Formation of Film) A volatile oil, a water-repellent polymer, and a non-volatile oil are mixed at the same ratio as that contained in the composition to prepare a mixed sample. 2. 0.5 g of the mixed sample was poured into a 3.0 × 4.6 × 0.3 cm metal middle plate, left at 60 ° C. for 3 hours,
Volatile oil is volatilized to form a film. (Calculation of continuous film formation rate)

1. A photograph of the obtained sample is taken, taken into a computer using a scanner, and this image data is binarized under the following conditions to obtain a solid phase (FIGS. 1, 1).
0) is white, and the oil phase (FIGS. 1 and 12) is black (using software "Mac SCOPE" manufactured by Mitani Corporation). [Binarization condition] (1) Density conversion condition 100 to 120/0 to 255 (2) Binarization threshold 0 to 100/0 to 255 White / overall (%) is calculated, and this is defined as a continuous film formation rate. [Sensory Evaluation] Various sensory evaluations were performed using 20 female panelists. The evaluation is represented by the following criteria. (Evaluation criteria) ◎: 80% or more of the subjects were evaluated as good or very good ○: 50% or more but less than 80% of the subjects were evaluated as good or very good △: 30% or more and less than 50% of the subjects were good or very good ×: Less than 30% of the subjects were evaluated as good or very good

In Tables 1 to 6 below, the proportion of the non-volatile oil component among the water-repellent polymer and the non-volatile oil component, ie, the film-forming components, is about 30% in Table 1, and about 2% in Table 2 40%, Table 3 is about 50%, Table 4 is about 60%, and Table 5 is about 6%.
5%, and Table 6 is about 70%. In addition, the numbers following the test examples in each table (for example, “2” in “Test Example 1-2”) indicate the plasticizing power of the entire non-volatile oil, 1 is the highest plasticizing power, In order, the plasticizing power decreases as 2, 3,.
Indicates that the plasticizing power is the lowest, and that the plasticizing power of the non-volatile oil in the test examples with the same number between the tables is the same.

[0025]

[Table 1] 例 Test example 1-1 1-2 1 -3 1-4 1-5 1-6 1-7 ──────────────────────────────────── Wax Celesin wax 10 10 10 10 10 10 10 Carnauba wax 1 1 1 1 1 1 1 Water-repellent polymer Silicon resin A 20 20 20 20 20 20 20 20 Non-volatile oils Querceryl tri-2-ethylhexanoate 2.5 1.7 0.9 0.2---Diisostearin Glyceryl acid 2.1 1.8 1.8 1.8 1.8 1.8 1.8 diisostearyl phosphonate 3.6 3.6 3.6 3.6 3.6 3.6 3.6 liquid lanolin 1.1 2.2 3.2 4.2 5.3 6.4 7.5 powder pigment 3 3 3 3 3 3 3 volatile oil tecamethylcyclopentasiloxane 56.7 56.7 56.5 56.2 55.3 54.2 53.1 率 Continuous film formation rate (%)- -- ----──────────────────────────────────── Elongation ◎ ◎ ◎ ◎ ◎ ◎ ◎ Gloss △ △ △ △ ○ ○ △ Secondary adhesion △ ◎ ◎ ◎ ◎ ◎ ◎ Sticky △ ○ ◎ ◎ ◎ ◎ ◎ Powdery × × × × × × × × Smoothness △ △ △ △ △ △ △ ───── ───────────────────────────────

[0026]

[Table 2] 例 Test example 2-1 2-2 2 -3 2-4 2-5 2-6 2-7 ──────────────────────────────────── Wax Celesin wax 10 10 10 10 10 10 10 Carnauba wax 1 1 1 1 1 1 1 Water-repellent polymer Silicone resin A 20 20 20 20 20 20 20 Non-volatile oil content Querceryl tri-2-ethylhexanoate 5.5 4.4 3.2 1.9 0.6--Diisostearin Glyceryl acid 3.2 2.7 2.3 1.9 1.8 1.8 1.8 diisostearyl phosphonate 3.6 3.6 3.6 3.6 3.6 3.6 3.6 liquid lanolin 1.7 3.3 5.0 6.6 8.3 9.9 11.6 powder pigment 3 3 3 3 3 3 3 volatile oil tecamethylcyclopentasiloxane 52 52 51.9 52 51.7 50.7 49 ──────────────────────────────────── Continuous film formation rate (%)- --88. 5 85.7 93.5 75.4 ──────────────────────────────────── Elongation ◎ ◎ ◎ ◎ ◎ ◎ ◎ Gloss △ △ ○ ○ ○ ○ △ Secondary adhesion △ ○ ◎ ◎ ◎ ◎ ◎ Sticky × △ ○ ◎ ◎ ◎ ◎ Powdery △ △ × × × × × × Smoothness △ △ △ △ △ △ △ ───── ───────────────────────────────

[0027]

[Table 3] 例 Test example 3-1 3-2 3 -3 3-4 3-5 3-6 3-7 ──────────────────────────────────── Wax Celesin wax 10 10 10 10 10 10 10 Carnauba wax 1 1 1 1 1 1 1 1 Water repellent polymer Silicon resin A 20 20 20 20 20 20 20 20 Non-volatile oils Querceryl tri-2-ethylhexanoate 9.9 8.1 6.2 4.4 2.5 0.6-diisostearin Glyceryl acid 4.5 3.9 3.0 2.7 2.1 1.8 1.8 diisostearyl phosphonate 3.6 3.6 3.6 3.6 3.6 3.6 3.6 liquid lanolin 2.5 5.0 7.5 9.9 12.4 15.0 17.4 powder pigment 3 3 3 3 3 3 3 volatile oil tecamethylcyclopentasiloxane 45.5 45.4 45.7 45.4 45.4 45 43.2 率 Continuous film formation rate (%) -30.2 56.0 75.4 76.7 77.2 78.3 伸 び Elongation ◎ ◎ ◎ ◎ ◎ ◎ ◎ Gloss ○ ○ ○ ○ ○ ○ ○ Secondary adhesion × △ △ △ △ △ △ Sticky △ △ ○ ○ ○ ○ ○ Powdery ◎ ◎ ○ ○ ○ ○ ○ Smoothness ○ ○ ○ ○ ○ ○ ○ ── ──────────────────────────────────

[0028]

[Table 4] ──────────────────────────────────── Test example 4-1 4-2 4 -3 4-4 4-5 4-6 4-7 ──────────────────────────────────── Wax Celesin wax 10 10 10 10 10 10 10 Carnauba wax 1 1 1 1 1 1 1 Water-repellent polymer Silicone resin A 20 20 20 20 20 20 20 Non-volatile oil glyceryl tri-2-ethylhexanoate 16.5 13.7 10.8 8.1 5.3 2.5-diisostearin Glyceryl acid 6.8 5.8 4.9 3.9 3.0 2.1 1.8 diisostearyl phosphonate 3.6 3.6 3.6 3.6 3.6 3.6 3.6 liquid lanolin 3.7 7.5 11.2 14.9 18.6 22.3 26.1 powder pigment 3 3 3 3 3 3 3 volatile oil tecamethylcyclopentasiloxane 35.4 35.4 35.5 35.5 35.5 35.5 34.5 率 Continuous film formation rate ( %)-55.0 67.3 72.3 84.6--伸 び Elongation ◎ ◎ ◎ ◎ ◎ ◎ ◎ Gloss ○ ○ ○ ○ ○ ○ ○ Secondary adhesion × × × × × × × Sticky △ △ ○ ○ ◎ ◎ ◎ Powderiness ◎ ◎ ◎ ◎ △ △ △ Smoothness ○ ○ ◎ ◎ ○ ○ ○ ────────────────────────────────────

[0029]

[Table 5] 例 Test example 5-1 5-2 5 -3 5-4 5-5 5-6 5-7 ──────────────────────────────────── Wax Celesin wax 10 10 10 10 10 10 10 Carnauba wax 1 1 1 1 1 1 1 1 Water-repellent polymer Silicone resin A 20 20 20 20 20 20 20 Non-volatile oils Querceryl tri-2-ethylhexanoate 18 14.9 11.8 8.7 5.6 2.6-Diisostearin Glyceryl acid 10.8 9.2 7.7 6.1 4.6 3.1 1.8 diisostearyl phosphonate 3.6 3.6 3.6 3.6 3.6 3.6 3.6 liquid lanolin 4.7 9.4 14 18.7 23.3 27.9 28 powder pigment 3 3 3 3 3 3 3 volatile oil tecamethylcyclopentasiloxane 28.9 28.9 28.9 28.9 28.9 28.8 28 率 Continuous film formation rate (%) -64.9 70.2 76.8---──────────────────────────────────── Elongation ◎ ◎ ◎ ○ ○ ○ ○ Gloss ○ ○ ○ ○ ○ ○ ○ Secondary adhesion × × × × × × × Sticky ○ ○ ○ ○ ○ ○ ○ Powderiness ◎ ◎ ◎ ◎ ○ ○ ○ Smoothness ○ ◎ ◎ ◎ ○ ○ ○ ── ──────────────────────────────────

[0030]

[Table 6] ──────────────────────────────────── Test example 6-1 6-2 6 -3 6-4 6-5 6-6 6-7 ──────────────────────────────────── Wax Celesin wax 10 10 10 10 10 10 10 Carnauba wax 1 1 1 1 1 1 1 1 Water-repellent polymer Silicone resin A 20 20 20 20 20 20 20 Non-volatile oil glyceryl tri-2-ethylhexanoate 23.8 20 16.3 12.6 8.9 5.2 1.4 Diisostearin Polyglyceryl acid 13.7 11.8 9.9 8.1 6.3 4.4 2.5 Diisostearyl phosphonate 3.6 3.6 3.6 3.6 3.6 3.6 3.6 Liquid lanolin 5.6 11.3 16.8 22.4 27.9 33.5 39.1 Powder Pigment 3 3 3 3 3 3 3 Volatile oil content Tetramethylcyclopentasiloxane 19.3 19.3 19.4 19.3 19.3 19.3 19.4 形成 Continuous film formation (%)-------伸 び Elongation ○ ○ ○ △ △ △ △ Gloss ○ ○ ○ ○ ○ ○ ○ Secondary adhesion × × × × × × × Sticky △ △ △ △ △ △ △ Powderiness ◎ ◎ ◎ ◎ ○ ○ ○ Smoothness ○ ○ ○ ○ ○ ○ ○ ────────────────────────────────────

The silicone resin A is about 5,000 to
A molecular weight of 6,000 and (CH ₃ ) ₃ Si
O _1/2 : SiO ₂ unit = 0.8: 1
₃ ) Silicon resin represented by _1.33 SiO _1.34 . From the above results, it can be seen from Tables 1 and 2 that when the blending amount of the non-volatile oil component is as small as 30 to 40%, secondary adhesion does not occur, but it is powdery and the feeling of use over time is poor. It became clear that it would be. On the other hand, when the amount of the non-volatile oil component is increased to 50% or more as shown in Tables 3 to 6,
Overall powderiness and smoothness are improved, but secondary adhesion occurs. Therefore, focusing on the feeling of use over time, such as powderiness and smoothness, from the above results, it is suggested that the more the amount of the non-volatile oil to be blended, the better. In particular, the proportion of non-volatile oil is 50-65.
% (Corresponding to Tables 3 to 5) is particularly effective not only for improving the usability over time such as powderiness and smoothness, but also for improving the usability during coating such as elongation and stickiness.

Further, even when the oil content is the same, for example, when Test Example 4-4 in Table 4 is compared with Test Example 4-5, Test Example 4-4
Although there is no problem in any evaluation other than the secondary adhesion, in Test Example 4-5 in which the continuous film formation rate is 80% or more, a powdery appearance is generated after a long time, and the feeling of use is poor. Tend to be. Therefore, it is suggested that a continuous film formation rate of less than 80% is necessary for improving the usability over time.

Accordingly, the present inventors have studied the incorporation of silica in order to improve the secondary adhesion in a test example in which the rate of continuous film formation is less than 80%, and particularly in the case of a good usability over time. . First, the blending of silica was examined using Test Examples 4-2, 4-3, and 4-4 in Table 4 (corresponding to Table 7, Test Examples 7-1, 7-2, and 7-3, respectively). .

[0034]

[Table 7] ──────────────────────────────────── Test example 7-1 7-2 7 -3 ワ ッ ク ス Wax Ceresin wax 10 10 10 Carnauba wax 1 1 1 Water repellency Polymer Silicone resin A 20 20 20 Non-volatile oil glyceryl tri-2-ethylhexanoate 13.7 10.8 8.1 glyceryl diisostearate 5.8 4.9 3.9 diisostearyl phosphonate 3.6 3.6 3.6 liquid lanolin 7.5 11.2 14.9 powder pigment 3 3 3 silica 2 2 2 Volatile oil content Tecamethylcyclopentasiloxane 35.4 35.5 35.5 ──────────────────────────────────── Continuous coating Formation rate (%) 55.0 67.3 72.3 ────────────────────────────────── ─ Elongation ◎ ◎ ◎ Gloss ○ ○ ○ Secondary adhesion △ ○ ◎ Stickiness △ ○ ○ Powderiness ◎ ◎ ◎ Smoothness ○ ◎ ◎ ────────────────── ──────────────────

As is clear from the above results, in Test Examples 7-2 and 7-3 in which the continuous film formation rate was 60% or more, it was possible to obtain a lipstick having improved secondary adhesion by blending silica. Was. However, in Test Example 7-1 in which the continuous film formation rate was less than 60, secondary adhesion and stickiness were insufficiently improved even when silica was blended. Therefore, the secondary adhesion can be improved by blending silica, and even if silica is blended, if the continuous film formation rate is less than 60%, the secondary adhesion is sufficiently improved. It became clear that it could not be improved. .

Next, the present inventors studied the amount of silica to be added in order to improve the secondary adhesion. In this study, Test Example 4-3 in Table 4 (corresponding to Table 8, Test Example 8-1) was used as a basic formulation, and the formulation of silica was examined.

[0037]

[Table 8] ──────────────────────────────────── Test example 8-1 8-2 8 -3 8-4 8-5 8-6 8-7 8-8 ─────────────────────────────────ワ ッ ク ス Wax Ceresin wax 10 10 10 10 10 10 10 10 Carnauba wax 1 1 1 1 1 1 1 1 Water-repellent polymer Silicone resin A 20 20 20 20 20 20 20 20 20 Non-volatile oil content Triceryl tri-2-ethylhexanoate 10.8 10.8 10.8 10.8 10.8 10.8 10.8 10.8 glyceryl diisostearate 4.9 4.9 4.9 4.9 4.9 4.9 4.9 4.9 diisostearyl phosphonate 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 Liquid lanolin 11.2 11.2 11.2 11.2 11.2 11.2 11.2 11.2 Powder Pigment 3 3 3 3 3 3 3 3 Silica-0.5 1 1.5 2 2.5 3 3.5 Volatile oils Tecamethylcyclopentasiloxane 35.5 35 34.5 34 33.5 33 32.5 32 ─────────────────────伸 び Elongation ◎ ◎ ◎ ◎ ◎ ◎ ○ △ Gloss ○ ○ ○ ○ ○ ○ ○ △ Secondary adhesion × △ ○ ◎ ◎ ◎ ◎ ◎ Sticky ○ ○ ○ ○ ○ ◎ ◎ ◎ Powderiness ◎ ◎ ◎ ◎ ◎ ◎ ○ ○ Smoothness ◎ ◎ ◎ ◎ ◎ ◎ ○ △ ───────────────────────── ───────────

As is clear from the above results, when silica is added in an amount of 1.0% by weight or more, the secondary adhesion can be improved. When silica is added in an amount of 3.5% by weight or more, use feeling such as elongation at the time of application, smoothness, and gloss of the applied surface is affected. Further, the same examination is performed based on Test Example 4-4 in Table 4 (corresponding to Table 9 and Test Example 9-1) and Test Example 5-3 in Table 5 (corresponding to Table 10 and Test Example 10-1). It was used as a prescription.

[0039]

[Table 9] 例 Test Example 9-1 9-2 9 -3 9-4 9-5 9-6 9-7 9-8 ───────────────────────────────── ─── Wax Ceresin wax 10 10 10 10 10 10 10 10 Carnauba wax 1 1 1 1 1 1 1 1 Water-repellent polymer Silicone resin A 20 20 20 20 20 20 20 20 20 Non-volatile oil content Triceryl tri-2-ethylhexanoate 8.1 8.1 8.1 8.1 8.1 8.1 8.1 8.1 glyceryl diisostearate 3.9 3.9 3.9 3.9 3.9 3.9 3.9 3.9 Diisostearyl phosphonate 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 Liquid lanolin 14.9 14.9 14.9 14.9 14.9 14.9 14.9 14.9 Powder Pigment 3 3 3 3 3 3 3 3 Silica-0.5 1 1.5 2 2.5 3 3.5 Volatile oils Tecamethylcyclopentasiloxane 35.5 35 34.5 34 33.5 33 32.5 32 ────────────────────────伸 び Elongation ◎ ◎ ◎ ◎ ◎ ◎ ○ △ Gloss ○ ○ ○ ○ ○ ○ ○ ○ Secondary adhesion × △ ○ ◎ ◎ ◎ ◎ ◎ Sticky ○ ○ ○ ○ ○ ◎ ◎ ◎ Powderiness ◎ ◎ ◎ ◎ ◎ ◎ ○ ○ Smoothness ◎ ◎ ◎ ◎ ◎ ◎ ○ △ ──────────────────────────── ────────

[0040]

[Table 10] ──────────────────────────────────── Test example 10-1 10-2 10 -3 10-4 10-5 10-6 10-7 10-8 ─────────────────────────────────ワ ッ ク ス Wax Ceresin wax 10 10 10 10 10 10 10 10 Carnauba wax 1 1 1 1 1 1 1 1 1 Water-repellent polymer Silicone resin A 20 20 20 20 20 20 20 20 20 Non-volatile oil content Triceryl tri-2-ethylhexanoate 11.8 11.8 11.8 11.8 11.8 11.8 11.8 11.8 Querceryl diisostearate 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 Diisostearyl phosphonate 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 3.6 Liquid lanolin 14 14 14 14 14 14 14 14 14 Powder Pigment 3 3 3 3 3 3 3 3 Silica-0.5 1 1.5 2 2.5 3 3.5 Volatile oil content Tecamethylcyclopentasiloxane 28.9 28.4 27.9 27.4 26.9 26.4 25.9 25.4 シ リ カ伸 び Elongation ◎ ◎ ◎ ◎ ◎ ◎ ○ △ Gloss ○ ○ ○ ○ ○ ○ ○ △ Secondary adhesion × △ ○ ◎ ◎ ◎ ◎ ◎ Sticky ○ ○ ○ ○ ○ ◎ ◎ ◎ Powderiness ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ Smoothness ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ◎ ──────────────────────── ────────────

As is clear from the above results, in each of the formulations shown in Tables 9 and 10, silica was added in an amount of 1.0% by weight.
By mixing as described above, the secondary adhesion can be improved satisfactorily. If silica is added in an amount of 3.5% by weight or more, elongation at the time of application and gloss of the applied surface are affected, and the usability is deteriorated. Therefore, it is preferable that the compounding amount of silica is 1.0 to 3.0% by weight. Furthermore, from the results of Tables 8 to 10, the compounding amount of silica was 1.
It became clear that a particularly excellent lipstick composition can be obtained at 5 to 2.5% by weight. Therefore, it became clear that the compounding amount of silica was preferably 1.0 to 3.0% by weight, more preferably 1.5 to 2.5% by weight.

Next, more specific formulation examples of the present invention will be shown. Note that the present invention is not limited to these.
Unless otherwise indicated, the amounts are shown in% by weight. Further, the film-forming component means a water-repellent polymer and a nonvolatile oil component,
The non-volatile oil content / film-forming component is a ratio of the non-volatile oil content to be a film-forming component.

Formulation Example 1 Stick-shaped lipstick ceresin wax 12.0% by weight Carnauba wax 1.0 Having a molecular weight of about 6,000, and (CH ₃ ) ₃ SiO _1/2 : SiO ₂ unit = 0.8: 1 Silicon resin represented by the average formula (CH ₃ ) _1.33 SiO _1.34 15.0 Glyceryl tri-2-ethylhexanoate 11.0 Glyceryl diisostearate 5.0 Liquid lanolin 6.0 Polybutene 4.0 Macadamia nut oil 0.1 Silica 2.5 Dye 0.2 Pigment 4.0 Pearl agent 4.0 Decamethylcyclopentasiloxane 35.2 Fragrance Appropriate amount ──────────────────────合計 Total: 100.0% by weight Non-volatile oil / film forming component = 61.1% Continuous film forming rate: 68.4% Evaluation: Elongation 、, gloss ○, The following adhesion ◎, stickiness
◎, powdery ◎, smoothness ◎,

Formulation Example 2 Stick-like lipstick ceresin wax 12.0% by weight Carnauba wax 1.0 Having a molecular weight of about 6,000, and (CH ₃ ) ₃ SiO _1/2 : SiO ₂ unit = 0.8: 1 Silicon resin represented by the average formula (CH ₃ ) _1.33 SiO _1.34 15.0 Glyceryl tri-2-ethylhexanoate 11.0 Glyceryl diisostearate 5.0 Liquid lanolin 6.0 Polybutene 4.0 Macadamia nut oil 0.1 Silica 2.5 Dye 0.2 Pigment 4.0 Pearl agent 4.0 Decamethylcyclopentasiloxane 34.98 Vitamin E acetate 0.02 β-carotene 0.2 Fragrance Appropriate amount ────────── ────────────────────────── Total: 100.0% by weight Non-volatile oil / film-forming component = 61.1% -Sustaining film formation rate: 68.4% Evaluation: elongation ◎, glossy ○, the secondary adhesion ◎, stickiness
◎, powdery ◎, smoothness ◎,

Formulation Example 3 Stick-like lipstick polyethylene wax 8.0% by weight Candelilla wax 3.0 Having a molecular weight of about 5,000, and (CH ₃ ) ₃ SiO _1/2 : SiO ₂ unit = 0.8 1: Silicon resin represented by the average formula (CH ₃ ) _1.33 SiO _1.34 20.0 Glyceryl diisostearate 10.0 Squalane 5.0 Trimethylolpropane tri-2-ethylhexanoate 3.5 Macadamia nut oil fatty acid Cholesteryl 4.5 Castor oil 6.5 Fine barium sulfate 3.0 Silica 1.5 Octamethylcyclotetrasiloxane 31.0 Pigment 4.0 Perfume Appropriate amount ────────────────合計 Total: 100.0% by weight Non-volatile oil / film-forming component = 59.6% Continuous film-forming rate 73.8% Rating: growth ◎, gloss ○, secondary adhesion ◎, stickiness
◎, powdery ◎, smoothness ◎,

Formulation Example 4 Sticky lipstick polyethylene wax 8.0% by weight Candelilla wax 3.0 Having a molecular weight of about 5,000 and (CH ₃ ) ₃ SiO _1/2 : SiO ₂ unit = 0.8 1: Silicon resin represented by the average formula (CH ₃ ) _1.33 SiO _1.34 20.0 Glyceryl diisostearate 10.0 Squalane 5.0 Trimethylolpropane tri-2-ethylhexanoate 3.5 Macadamia nut oil fatty acid Cholesteryl 4.5 Castor oil 6.5 Fine barium sulfate 3.0 Silica 1.5 Octamethylcyclotetrasiloxane 30.98 Pigment 4.0 Sodium hyaluronate 0.02 Fragrance qs ────────────────────────── Total: 100.0% by weight Non-volatile oil / film formation Ingredient = 59.6% Continuous film formation rate: 73.8% Evaluation: Elongation ○, gloss ○, secondary adhesion べ, stickiness
◎, powdery ◎, smoothness ◎,

Formulation Example 5 Emulsion type stick-like lipstick paraffin wax 10.0% by weight Microcrystalline wax 5.0 Dimethylpolysiloxane (viscosity 6 cps) 9.5 Diisostearyl malate 4.5 Liquid lanolin 4.0 Macadamia nut oil 0 Cholesteryl hydroxystearate 6.0 Average molecular formula (CH ₃ ) _1.24 SiO _1.38 having a molecular weight of about 10,000 and consisting of (CH ₃ ) ₃ SiO _1/2 : SiO ₂ units = 0.7: 1 15.0 Decamethylcyclopentasiloxane 25.0 Octamethylcyclotetrasiloxane 8.3 Silica 2.0 Synthetic sodium-magnesium silicate 1.0 Polyoxyethylene-methylpolysiloxane copolymer 0 ion-exchanged water 2.0 glycerin 1.0 pigment 4.5 Material amount ──────────────────────────────────── Total: 100.0% by weight Non-volatile oil / Film-forming component = 61.7% Continuous film-forming rate: 70.9% Evaluation: Elongation 艶, gloss ○, secondary adhesion ◎, stickiness
◎, powdery ◎, smoothness ◎,

Formulation Example 6 Emulsion-type stick-like lipstick paraffin wax 10.0% by weight Microcrystalline wax 5.0 Dimethylpolysiloxane (viscosity 6 cps) 9.5 Diisostearyl malate 4.5 Liquid lanolin 4.0 Macadamia nut oil 0 Cholesteryl hydroxystearate 6.0 Average molecular formula (CH ₃ ) _1.24 SiO _1.38 having a molecular weight of about 10,000 and consisting of (CH ₃ ) ₃ SiO _1/2 : SiO ₂ units = 0.7: 1 15.0 decamethylcyclopentasiloxane 24.98 octamethylcyclotetrasiloxane 8.3 silica 2.0 synthetic sodium-magnesium 1.0 polyoxyethylene-methylpolysiloxane copolymer 0 ion-exchanged water 2.0 glycerin 1.0 pigment 4.5 Perfume Appropriate amount Pantothenyl ethyl ether 0.01 Royal jelly extract 0.01 ────────────────────────────────── ── Total: 100.0% by weight Non-volatile oil / film forming component = 61.7% Continuous film formation rate: 70.9% Evaluation: elongation 伸 び, gloss 、, secondary adhesion ◎, stickiness
◎, powdery ◎, smoothness ◎,

Formulation Example 7 Paste-like lipstick ceresin wax 1.0% by weight Vaseline 8.0 Glyceryl tri-2-ethylhexanoate 11.7 Glyceryl diisostearate 7.3 Macadamia nut oil 7.5 Polybutene 3.5 About 5,000 Silicon resin having a molecular weight and having an average formula of (CH ₃ ) ₃ SiO _1/2 : SiO ₂ units = 0.85: 1 and represented by (CH ₃ ) _1.38 SiO _1.31 25.0 decamethylcyclopentasiloxane 25.5 Silica 3.0 Pigment 3.0 Pearl agent 4.5 Appropriate amount of perfume ─────────────────────────────── ───── Total: 100.0% by weight Non-volatile oil / film-forming component = 61.7% Continuous film-forming rate: 77.6% Evaluation: elongation 、, gloss 、, secondary adhesion ◎, stickiness
◎, powdery ◎, smoothness ◎,

Formulation Example 8 Paste-like lipstick ceresin wax 1.0% by weight Vaseline 8.0 Glyceryl tri-2-ethylhexanoate 11.7 Glyceryl diisostearate 7.3 Macadamia nut oil 7.5 Polybutene 3.5 About 5,000 Silicon resin having a molecular weight and having an average formula of (CH ₃ ) ₃ SiO _1/2 : SiO ₂ units = 0.85: 1 and represented by (CH ₃ ) _1.38 SiO _1.31 25.0 decamethylcyclopentasiloxane 25.39 Silica 3.0 Pigment 3.0 Pearl agent 4.5 Perfume Appropriate amount Stearyl glycyrrhizinate 0.1 Pyridoxine hydrochloride 0.01 ──────────────── Total: 100.0% by weight Non-volatile oil / film forming component = 60.3% Continuous film forming rate: 77.6% Value: growth ◎, gloss ○, secondary adhesion ◎, stickiness
◎, powdery ◎, smoothness ◎,

Formulation Example 9 Emulsion-type stick-like lipstick paraffin wax 10.0% by weight Microcrystalline wax 5.0 Dimethylpolysiloxane (viscosity 6 cps) 9.5 Diisostearyl malate 4.5 Liquid lanolin 4.0 Macadamia nut oil 0 Cholesteryl hydroxystearate 6.0 Average molecular formula (CH ₃ ) _1.24 SiO _1.38 having a molecular weight of about 10,000 and consisting of (CH ₃ ) ₃ SiO _1/2 : SiO ₂ units = 0.7: 1 15.0 decamethylcyclopentasiloxane 24.98 octamethylcyclotetrasiloxane 8.3 silica 2.0 synthetic sodium-magnesium 1.0 polyoxyethylene-methylpolysiloxane copolymer 0 ion-exchanged water 2.0 glycerin 1.0 pigment 4.5 Perfume qs l-menthol 0.01 camphor 0.01 合計 total : 100.0% by weight Non-volatile oil / film-forming component = 61.7% Continuous film-forming rate: 70.9% Evaluation: elongation 、, gloss 、, secondary adhesion ◎, stickiness
◎, powdery ◎, smoothness ◎,

[0052]

As described above, according to the present invention,
Form a partially continuous film in which the oil phase is dispersed in the solid phase as a film, and at the same time mix silica to improve the secondary adhesion, improve elongation during application, do not cause stickiness, and elapse for a long time It is possible to obtain a lipstick composition that does not produce a powdery texture even afterwards and has an excellent feeling in use.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of a film formed by a water-repellent polymer of the present invention and a nonvolatile oil component.

FIG. 2 is a photograph of a coating sample image-processed to measure the continuous coating formation rate of the compositions of the test examples of Tables 1 to 4 of the present invention.

[Explanation of symbols]

 10 Solid phase 12 Oil phase

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Miwa Soyama 1050 Nippa-cho, Kohoku-ku, Yokohama, Kanagawa Prefecture Inside Shiseido Daiichi Research Center Co., Ltd.

Claims (6)

[Claims] 1. A volatile oil component, a water-repellent polymer dissolved in the volatile oil component, a powder that can be coated on the water-repellent polymer in a state where the volatile oil component is not present, A non-volatile oil component having solubility, wherein at least a part of the powder is silica, and a film formed by the following method is a state in which an oil component phase is dispersed in a solid phase; and A lipstick composition having a phase continuous film formation of 60 to 80%. [Method for Forming Coating] A volatile oil, a water-repellent polymer, and a non-volatile oil are mixed at the same ratio as that contained in the composition to prepare a mixed sample. 2. 0.5 g of the mixed sample was poured into a 3.0 × 4.6 × 0.3 cm metal middle plate, left at 60 ° C. for 3 hours,
Evaporate volatile oils. 2. The lipstick composition according to claim 1, wherein
A lipstick composition comprising 10 to 40% by weight of a nonvolatile oil component. 3. The lipstick composition according to claim 1, wherein the composition comprises 1.0 to 3.0% by weight of silica. 4. The lipstick composition according to claim 1, wherein two or more non-volatile oils having different plasticizing powers for the water-repellent polymer are selected and used, and a continuous film formation rate is obtained. A lipstick composition, wherein the composition is adjusted. 5. The lipstick composition according to claim 1, wherein the volatile oil is a volatile silicone oil and the water-repellent polymer is a silicone resin. . 6. The lipstick composition according to claim 1, wherein the amount of the non-volatile oil in the film-forming component comprising the water-repellent polymer and the non-volatile oil is 50 to 50.
A composition for lipstick, which is 65%.