JP2002205910A - Unemulsified cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an unemulsified cosmetic having excellent sense of use such as unsticky feeling, fresh feeling and moist feeling, having good temporal stability, and containing an oil component and water. SOLUTION: This unemulsified cosmetic is characterized in that the cosmetic contains the oil component and a water-absorbing porous powder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a non-emulsifying cosmetic. More specifically, the present invention relates to a non-emulsifying cosmetic containing oil and water, which has an excellent feeling of use such as being non-greasy and moist and having good stability over time.

[0002]

2. Description of the Related Art Mixing an aqueous phase component with an oil phase component is effective in preventing skin drying and maintaining a moisturizing effect, and has conventionally been achieved by a method such as water-in-oil emulsification. The emulsion is applied to many cosmetics.

However, water-in-oil type emulsions emulsified with surfactants have drawbacks such as sticky feeling in use, and also have problems such as safety concerns and water evaporation. I have. Recently, an emulsification technique that does not use a surfactant has been disclosed, but it is very difficult to obtain an emulsion that is stable over time, and it cannot be said that it has sufficiently solved the problem of feeling in use.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an excellent feeling of use, such as being non-greasy and refreshing, having a moist feeling, and stability over time. To provide a non-emulsifying cosmetic containing oil and water.

[0005]

Means for Solving the Problems The present inventors have made intensive studies to solve the above-mentioned problems, and as a result, by developing a novel base containing oil, water and a specific powder,
The inventors have found that the above-mentioned problems can be solved, and have completed the present invention.

[0006] That is, the present invention is a non-emulsifying cosmetic comprising an oil component and a water-absorbing porous powder.

[0007] The non-emulsifying cosmetics of the present invention include, for example, powder-in-oil dispersion cosmetics and powder-in-oil dispersion cosmetics.

[0008] The porous powder is preferably porous silica, and the content of the porous powder is preferably 0.5 to 65% by mass based on the total amount of the cosmetic. .

In a preferred embodiment of the present invention, the oil content of 40 to 90% by mass (in the total amount of the cosmetic) and the water content of 0.1 to 30% by mass (in the total amount of the cosmetic) are 0.5 to 20% by mass (in the total amount of the cosmetic). This is a non-emulsifying cosmetic of a powder-in-oil dispersion type containing a porous powder (in the total amount of the cosmetic).

In another preferred embodiment of the present invention,
2.5 to 65% by mass which absorbed 分 40% by mass (in the total amount of cosmetics) of oil and 5 to 50% by mass (in the total amount of cosmetics) of water
An oil-in-powder non-emulsifying cosmetic containing a porous powder (in the total amount of the cosmetic).

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail.

In the present invention, there can be provided a powder-in-oil dispersion cosmetic in which a powder component is dispersed in an oil component and an oil-in-powder dispersion cosmetic in which an oil component is dispersed in a powder component. Each is used as a cosmetic with its own characteristics. A typical example of the powder-in-oil dispersion cosmetic is a stick-shaped cosmetic, and a typical example of the powder-in-oil dispersion cosmetic is a powdery foundation.

The oil used in the present invention is not particularly limited as long as it can be blended with cosmetics. Examples of oils include, for example, hydrocarbons, waxes and waxes such as solid paraffin, ceresin, microcrystalline wax, polyethylene wax, hardened oil, beeswax, mocro, gay wax, carnauba wax, candelilla wax as solid oil components. And higher fatty acids such as stearic acid, lauric acid, myristic acid and behenic acid, and higher alcohols such as cetyl alcohol, stearyl alcohol and lauryl alcohol. One or more of these solid oils are selected and blended.

Examples of the liquid oil component include oils and fats such as olive oil, castor oil, jojoba oil, and macadamian nut oil.
Liquid paraffin, squalane, polybutene, hydrocarbons such as lanolin, isopropyl myristate, isopropyl palmitate, cetyl 2-ethylhexanoate, octyldodecyl myristate, glyceryl trioctanoate, glyceryl triisostearate, polyglyceryl diisostearate (diisostearate) Diglyceryl, etc.), polyglyceryl triisostearate (such as diglyceryl triisostearate), pentaerythritol 2
Esters such as ethyl hexanoate, dipentaerythritol octanoate, trimethylolpropane octanoate, trimethylolpropane triisostearate, diisostearyl malate, and fatty acids such as isostearic acid and oleic acid; Higher alcohols such as stearyl alcohol, oleyl alcohol, and octyl dodecanol; amino acid esters such as commercially available Eldeu (Eldeu CL-202 and the like; manufactured by Ajinomoto Co.); dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, and cyclic silicone (Octamethylcyclotetrasiloxane,
Silicone oils such as decamethylcyclopentasiloxane and dodecamethylcyclohexanesiloxane), amino-modified polysiloxanes, alkyl-modified polysiloxanes, fluorine-modified polysiloxanes, perfluoropolyethers, and volatile hydrocarbons. One or more of these liquid oils are selected and blended. Of these, volatile oils such as cyclic silicones are preferably blended because the blending improves the refreshing feeling and improves the makeup stickiness.

The oil content is 90% by mass in the total amount of the cosmetic.
The following is preferable, and it does not necessarily have to be blended.
The amount of the powder-in-oil dispersion cosmetic is preferably 40 to 90% by mass, more preferably 30 to 90% by mass of the total amount of the cosmetic.
80% by mass. Further, 40 to 70% by mass is particularly preferable. In addition, in the case of powder-in-oil dispersion type cosmetics,
It is preferably 0 to 40% by mass, more preferably 0 to 30% by mass, based on the total amount of the cosmetic. Further, 0 to 20% by mass is particularly preferable.

The porous powder used in the present invention comprises:
There is no particular limitation as long as it is a porous powder that can be blended into the cosmetic, but a hydrophilic porous powder is preferred. Further, the particle size of the porous powder is not particularly limited, but is 0.5 to 2 in average particle size.
0 μm is preferred. In the present invention, the porous powder plays a role of absorbing water or an aqueous solution of an aqueous component.

In the present invention, the pore volume, which is an important specification when absorbing water or the like, can be freely set, but is, for example, about 0.1 to 1.5 cc / g. Water can be absorbed. Examples of the hydrophilic porous powder preferably used in the present invention include silica, cellulose, and titanium oxide. Of these, silica is most preferred. As the porous powder, commercially available products can be used, and silica micro beads P-1500, P-1505, P-1000,
P-700, P-400, L-1500, PL-7
00, the same LB-1500 (manufactured by Catalyst Chemical Industry Co., Ltd.), silica beads SB-700 (manufactured by Miyoshi Kasei Co., Ltd.) and Celluloflow (manufactured by Asahi Kasei Co., Ltd.).

When the porous powder of the present invention has a spherical or plate-like shape, the refreshing feel of the cosmetic can be improved. In particular, a spherical shape is preferable.

The compounding amount of the porous powder is 0.1% of the total amount of the cosmetic.
5 to 65% by mass is preferred. The amount of the powder-in-oil dispersion cosmetic is preferably 0.5 to 20% by mass, more preferably 1 to 15% by mass, based on the total amount of the cosmetic. Also,
Particularly preferred is 3 to 10% by mass. In addition, the amount of the oil-in-powder dispersion cosmetic is preferably 2.5 to 65% by mass, more preferably 5 to 40% by mass based on the total amount of the cosmetic. Moreover, 10-30 mass% is especially preferable.

In the present invention, the porous powder may be constituted as a powder component as all components in the powder component, but it is preferable to mix another powder in consideration of the usability of the cosmetic. .

The powder other than the porous powder that can be blended in the present invention is not particularly limited as long as it is a powder that can be blended in cosmetics, and the shape is not particularly limited, such as spherical, plate-like, or needle-like. it can. To give an example of a powder, for example,
Inorganic powders include talc, kaolin, mica, synthetic mica, sericite, magnesium carbonate, calcium carbonate, aluminum silicate, magnesium silicate, aluminum magnesium silicate, anhydrous silicic acid, barium sulfate, smectite, titanium oxide, oxidized Zinc, magnesium oxide, aluminum oxide, red iron oxide, yellow iron oxide, black iron oxide, boron nitride, navy blue, ultramarine, mica titanium, bismuth oxychloride, etc., and organic powders such as nylon powder, polyethylene powder, and polystyrene powder , Silicone powder, methyl methacrylate powder, polytetrafluoroethylene powder, wool powder, silk powder and the like. Others Red 202, Red 226,
Orange No. 201, Yellow No. 4, Yellow No. 401, Blue 404
And blue # 1 organic pigments. Further, those obtained by compounding these powders, or those subjected to surface treatment using one or more of fluorine compounds, silicone oils, metal soaps, waxes, oils, hydrocarbons, and the like may be used. it can. One or more of these powders are arbitrarily selected and used.

In the present invention, in the case of a powder-in-oil dispersion type cosmetic, the compounding amount of all powder components including the porous powder is preferably 59% by mass or less based on the total amount of the cosmetic. In the case of a cosmetic, the content is preferably 95% by mass or less in the total amount of the cosmetic.

As described above, the water used in the present invention exists in a state absorbed in the porous powder.
The amount of water is preferably 1.0 to 50% by mass based on the total amount of the cosmetic. In the case of a powder-in-oil dispersion type cosmetic, blending 1% by mass of water makes it easier to blend an aqueous component, and 3% by mass.
Mixing is preferable because it gives a noticeable moist feeling and enhances the moisturizing effect. Most preferably, by blending at least 5% by mass, a sufficient refreshing feeling can be imparted with this blending amount. The amount of water in the powder-in-oil dispersion cosmetic in consideration of the upper limit of the amount is preferably 1.0 to 30% by mass, more preferably 3 to 30% by mass of the total amount of the cosmetic.
-20% by mass. Further, 5 to 15% by mass is particularly preferable.

In the case of a powder-in-oil dispersion type cosmetic, when water is blended at 5% by mass, an aqueous component is easily blended, and when water is blended at 10% by mass, a moist feeling is remarkably imparted.
It is preferable because the moisturizing effect is enhanced. Most preferably,
By blending water in an amount of 15% by mass or more, a sufficient refreshing feeling can be imparted with this blending amount. In addition, the amount of the powder-in-oil-dispersed cosmetic in consideration of the upper limit is preferably 5 to 50% by mass, more preferably 10 to 4% by mass of the total amount of the cosmetic.
0% by mass. Further, 15 to 30% by mass is particularly preferable.

In the present invention, the aqueous component is dissolved in water, absorbed by the porous powder together with the water, and can be stably incorporated into the powder-in-oil dispersion cosmetic or the oil-in- powder dispersion cosmetic. Suitable aqueous components include, for example, polyhydric alcohols such as polyethylene glycol, propylene glycol, 1,3-butylene glycol, hexylene glycol, dipropylene glycol, glycerin and diglycerin, xylitol, which are useful as humectants. Sorbitol, maltitol, maltose, sugar alcohols such as mannitol, chondroitin sulfate, polysaccharides such as hyaluronic acid, sucrose, oligosaccharides such as trehalose,
Cholesteryl-12-hydroxystearate, sodium lactate, water-soluble plant extracts and the like, water-soluble drugs, amino acids, lower alcohols and the like are included.

In a preferred embodiment of the present invention, in the case of a powder-in-oil dispersion type cosmetic, an oil content of 40 to 90% by mass (in the total amount of the cosmetic) and water of 0.1 to 30% by mass (in the total amount of the cosmetic). Powder-in-oil dispersion type non-emulsifying cosmetics containing 0.5 to 20% by mass (in the total amount of the cosmetics) of a porous powder that has absorbed water, and more preferably 30 to 80% by mass (cosmetics). Non-emulsifying system of a powder-in-oil dispersion type comprising a porous powder of 1 to 15% by mass (in the total amount of cosmetics) which has absorbed an oil content of 3 to 20% by mass (in the total amount of cosmetics) and water of 3 to 20% by mass (in the total amount of cosmetics) Cosmetics. Also,
The most preferred embodiment is a porous powder of 3 to 10% by mass (in the total amount of the cosmetic) that has absorbed oil of 40 to 70% by mass (in the total amount of the cosmetic) and water of 5 to 15% by mass (in the total amount of the cosmetic). It is a non-emulsifying cosmetic of a powder-in-oil dispersion type containing a body.

In the case of the oil-in-powder dispersion type cosmetic, 0%
2.5 to 65% by mass which absorbed 分 40% by mass (in the total amount of cosmetics) of oil and 5 to 50% by mass (in the total amount of cosmetics) of water
An oil-in-powder non-emulsifying cosmetic containing a porous powder (in the total amount of the cosmetic) is a non-emulsifying cosmetic.
5 to 40% by mass of absorbing oil of 〜30% by mass (in the total amount of cosmetics) and water of 10 to 40% by mass (in the total amount of cosmetics)
An oil-in-powder non-emulsifying cosmetic containing a porous powder (in the total amount of the cosmetic). Also, the most preferred embodiment is 0
10 to 30% by mass of absorbing oil of ２０20% by mass (in the total amount of cosmetics) and water of 15 to 30% by mass (in the total amount of cosmetics)
An oil-in-powder non-emulsifying cosmetic containing a porous powder (in the total amount of the cosmetic). According to these combinations, particularly excellent effects can be obtained.

In the cosmetic of the present invention, in addition to the above-mentioned components, other components usually used in cosmetics and pharmaceuticals, for example, polymer compounds, ultraviolet absorbers, sequestering agents,
Vitamins, antioxidants, antibacterial agents, preservatives, anti-inflammatory agents, whitening agents, oil-soluble plant extracts, skin activators, agents such as blood circulation promoters, antiseborrheic agents, anti-inflammatory agents, fresheners, fragrances, etc. Can be appropriately added as needed within a range not to impair the effects of the present invention. As for the surfactant, the technical idea is that the present invention can stably coexist water and oil without using a surfactant.
It is desirable not to mix them, but this does not deny the mixing of the surfactant at all.

The cosmetic of the present invention can be widely applied to various forms, mainly makeup cosmetics such as foundations, makeup bases, lipsticks, eye shadows and the like. And the form which the cosmetics of this invention can take is not limited to these forms.

The method for producing the cosmetic of the present invention is not particularly limited, but preferably, an excess amount of water or an excess amount of water containing an aqueous component (hereinafter, also simply referred to as water) is preferably contained inside the porous powder. ) Is sufficiently absorbed, the powder is dried with a drier or the like to remove excess water, the amount of water is determined, and a porous powder having a predetermined amount of water absorbed therein is produced. Next, this powder and other components can be mixed and obtained by a conventional method. A preferred embodiment of the cosmetic of the present invention is a powder-in-oil dispersion type in which a porous powder in which water is absorbed is preferably dispersed in an oil component (powder component) together with another powder, or an oil component in the powder component. Is a non-emulsifying dosage form of an oil-in-powder dispersion in which is dispersed.

Further, in the present invention, conventionally, when producing a non-emulsifying cosmetic comprising an oil phase component and an aqueous phase component,
Although the nerves are used in the mixing ratio of each of the above components in consideration of separation of oil grease and the like, there is an advantage that there is no such concern at all. Further, in the oil-in-powder dispersion represented by the powdery foundation, morphological changes such as thinning do not occur even if moisture evaporates over time after molding.

[0032]

The present invention will be specifically described below with reference to examples. The compounding amount is mass%. Prior to the description of the examples, the effect test method used in the present invention will be described.

[Use test] Moist feeling, refreshing feeling,
For each of the evaluation items of refreshing feeling, skin extension, and fit, we conducted a use test with 10 specialized panels,
The evaluation points given by each person based on the following evaluation point criteria were totaled.

(Evaluation point criteria) 5 points: Very excellent. 4 points: Excellent. 3 points: Normal. 2 points: poor. 1 point: very poor.

(Evaluation Criteria) A: The total score is 40 points or more. ：: The total score is 30 or more and less than 40 points. Δ: The total score is 20 or more and less than 30. X: The total score is less than 20 points.

[Aging stability test] Each test product was evaluated as 0
The appearance change after 4 weeks was evaluated by storing at each temperature condition of 40 ° C., room temperature (RT), 40 ° C. and 50 ° C., and storing at a cycle temperature condition of 5 to 45 ° C. (Evaluation criteria) ：: No deterioration such as separation or thinning occurred at each temperature condition. ：: Almost no alteration such as separation or thinning at each temperature condition. ×: Deterioration such as separation or thinning occurs under any temperature conditions.

Examples 1 to 6 Stick foundations having the formulations shown in Table 1 were produced as follows.
(A); (16) to (18) with excess (12) and (1)
3) to (15) and (23) are stirred and mixed to obtain a fluid state, then degassed, replaced with air in the pores of (16) to (18) and absorbed, and then dried at 70 ° C. After drying for 2 hours with a machine and sufficiently drying the surface, the mixture was uniformly mixed with (19) to (22). (B); On the other hand, (1) to (11) and (2)
4) was dissolved by heating. (C): Next, (A) was added to (B) and uniformly dispersed.

[0038]

[Table 1]

* 1: Silica microbead LB-1500 * 2: Silica microbead PL-700 * 3: Silica microbead L-1500

Table 2 shows the evaluation results of Examples 1 to 6.

[0041]

[Table 2]

As can be seen from Table 2, all of the stick foundations of Examples 1 to 6 according to the present invention have a sufficient moist feeling, a refreshing feeling, a stretch to the skin and a fit feeling, and are stable over time. The properties were also good, and excellent effects were obtained. In addition, it can be seen that a refreshing feeling can be sufficiently imparted by blending 5% by mass of water.

Examples 7 to 12 Powdery foundations having the formulations shown in Table 3 were produced as follows. (A); excess of (14) and (15) in (7) to (10)
And (18) were stirred and mixed to obtain a fluid state, then degassed, replaced with air in the pores of (7) to (10) and absorbed, and then dried in a dryer at 70 ° C. for 2 hours. After drying and sufficiently drying the surface, (11) to (13) and (16) (1)
7) and uniformly mixed. (B); On the other hand, (1) to (6) and (19) were heated and dissolved. (C); Next, (B)
Was added to (A) and uniformly dispersed.

[0044]

[Table 3]

* 1: Silica microbead LB-1500 * 2: Silica microbead L-1500 * 3: Silica microbead PL-700 * 4: Silica microbead P-1500

Table 4 shows the evaluation results of Examples 7 to 12.

[0047]

[Table 4]

As can be seen from Table 4, the powdery foundations of Examples 7 to 12 according to the present invention have a sufficient moist feeling and a refreshing feeling in use.
The stability with time was also good, and an excellent effect was obtained. Examples 7 to 9 and 12 in which water was blended in an amount of 15% by mass or more.
It can be seen that can provide a refreshing feeling sufficiently.

The cosmetics of the present invention having various formulations are shown below as examples. In addition, when the above evaluation test was performed, all the examples were excellent.

Example 13 Body Powder Ingredient Content (% by mass) (1) Talc 31.7 (2) Silica Microbead LB-1500 30.0 (3) Ion-exchanged water 25.0 (4) Glycerin 5 0.0 (5) 1-menthol 0.1 (6) Ethyl alcohol residue (7) Dimethylpolysiloxane 5.0 (8) Preservative

<Production method> Excess (3) and (4) are added to (2), and the mixture is stirred and mixed so as to be uniform. The mixed (2) is degassed, (3) and (4) are absorbed in the pores of (2), and then dried for 1 hour in a dryer at 105 ° C. to prepare a water-absorbing powder. This was mixed with (1) using a supermixer, (5) and (8) were added to (6), and after mixing and dissolving, (7) was added, followed by uniform mixing using a supermixer. Sieved product.

[Example 14] Lipstick component blending amount (% by mass) (1) diisostearyl malate 54.0 (2) amino acid ester 2.0 (3) macadamia nut oil 2.0 (4) candelilla wax 4.0 (5) Ceresin 3.0 (6) Hydrogenated jojoba oil 1.0 (7) Silica microbead PL-700 10.0 (8) Deionized water 8.0 (9) Butylene glycol 4.0 ( 10) Mica coated with titanium dioxide 5.0 (11) Red 202 0.7 (12) Titanium oxide 4.0 (13) Bengala 0.7 (14) Yellow iron oxide 1.5 (15) Black iron oxide 0.1

<Production method> Excessive (8) and (9) were added to (7), mixed uniformly, and then degassed to absorb (8) and (9) in the pores of (7). After that, 1
After drying for a time, prepare a water-absorbing powder. On the other hand, (1)-
(6) is heated and dissolved uniformly, and the water-absorbing powder and (10) to (15) are added thereto, uniformly dispersed, poured into a lipstick mold and cooled.

[Example 15] Eye shadow component blending amount (% by mass) (1) methylphenylpolysiloxane 5.0 (2) octamethylcyclotetrasiloxane residue (3) glyceryl trioctanoate 2.0 (4) candelilla Wax 3.0 (5) ceresin 3.0 (6) hydrogenated rapeseed oil alcohol 3.0 (7) mica titanium coated with mung bean 5.0 (8) silica microbead LB-1500 8.0 (9) ion exchanged water 15.0 (10) Dipropylene glycol 5.0 (11) Sericite 20.0 (12) Preservative appropriate amount (13) Fragrance appropriate amount

<Production method> (1) to (6) and (12) were
Mix homogeneously at ° C. Prepared there in advance (8)
After excessively adding (9) and (10) to the mixture and uniformly mixing the mixture, the mixture was degassed, and (9) and (10) were absorbed in the pores of (8). In addition, after uniform mixing at 80 ° C., (13) is added to obtain the product.

[0056]

As described in detail above, according to the present invention,
A non-emulsifying cosmetic containing oil and water, which has an excellent feeling of use such as a moist feeling and a non-greasy refreshing feeling, and has a refreshing feeling and excellent stability over time. Furthermore, in the case of the powder-in-oil dispersion type cosmetic, a cosmetic having excellent skin extension and fit can be obtained.

Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (reference) A61K 7/027 A61K 7/027 7/032 7/032 7/035 7/035 F term (reference) 4C083 AA082 AA112 AA122 AB171 AB172 AB232 AB242 AB432 AC012 AC102 AC122 AC352 AC422 AC582 AC792 AD042 AD162 AD172 AD532 BB11 BB21 CC01 CC12 CC13 CC14 DD11 DD17 DD39 EE01 EE06 EE07

Claims (5)

[Claims] 1. A non-emulsifying cosmetic comprising oil and water-absorbing porous powder. 2. The non-emulsifying cosmetic according to claim 1, wherein the non-emulsifying cosmetic is a powder-in-oil dispersion cosmetic. 3. The non-emulsifying cosmetic according to claim 1, wherein the non-emulsifying cosmetic is a powder-in-oil-dispersed cosmetic. 4. The non-emulsifying cosmetic according to claim 1, wherein the porous powder is porous silica. 5. The non-emulsifying cosmetic according to claim 1, wherein the content of the porous powder is 0.5 to 65% by mass based on the total amount of the cosmetic.