JP2002370918A - Non-emulsified and powder dispersed-in-oil type cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a non-emulsified type cosmetic including an oil component and water, having good feeling and usability such as refreshing feeling with no greasiness and high spreadability over the skin, and excellent in stability with time and shape-retaining stability. SOLUTION: This non-emulsified and powder dispersed-in-oil type cosmetic is characterized by comprising an oil component, water-absorbed porous powder and an oil gelatinizer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-emulsifying cosmetic containing oil and water. More particularly, the present invention relates to a non-emulsifying powder-in-oil-dispersed cosmetic which has excellent feeling of use such as non-stickiness and spreadability, and has excellent usability, stability over time and shape retention stability.

[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 usability and usability such as being non-greasy and refreshing to the skin. Another object of the present invention is to provide a non-emulsifying cosmetic containing oil and water, which is excellent in stability over time and shape retention stability.

[0005]

Means for Solving the Problems The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that a novel non-emulsifying powder-in-oil dispersion containing oil, water and water-absorbing powder is obtained. The present inventors have found that the above problems can be solved by developing a cosmetic base and further adding an oil gelling agent to the base, thereby completing the present invention.

That is, the present invention is a non-emulsifying powder-in-oil dispersion cosmetic comprising an oil, a water-absorbing porous powder and an oil gelling agent.

[0007] The porous powder is preferably porous silica, and the content of the porous powder is 0.5 to 20 mass% in the total amount of the non-emulsified oil-in-oil powder dispersion type cosmetic. %.

The oil gelling agent is preferably an organically modified clay mineral.

[0009]

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

The non-emulsifying powder-in-oil-dispersed cosmetic composition of the present invention comprises a porous powder in which water is absorbed in an oily component containing an oil, and in some cases, an aqueous component may be dissolved. In some cases, a powder other than a porous powder is dispersed, and a form of powder-in-oil dispersion is adopted. Hereinafter, in the present invention, the “non-emulsifying powder-in-oil dispersion cosmetic” is also referred to as “P / O cosmetic”.

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, liquid lanolin and other hydrocarbons, isopropyl myristate, isopropyl palmitate, cetyl 2-ethylhexanoate, octyldodecyl myristate, glyceryl trioctanoate, glyceryl triisostearate, diglyceryl diisostearate, triglyceride Diglyceryl isostearate, pentaerythritol tetra-2-ethylhexanoate,
Esters such as pentaerythritol dioctanoate, trimethylolpropane trioctanoate, trimethylolpropane triisostearate, diisostearyl malate, fatty acids such as isostearic acid and oleic acid, isostearyl alcohol, oleyl alcohol, octyldodecanol, etc. Higher alcohols, amino acid esters such as commercially available Eldew (Eldew CL-202 and the like; manufactured by Ajinomoto Co., Inc.), dimethylpolysiloxane, methylphenylpolysiloxane, diphenylpolysiloxane, 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 amount of the oil component is 4% of the total amount of the P / O type cosmetic.
It is preferably from 0 to 90% by mass, and more preferably from 40 to 8% by mass.
0% by mass. Further, 40 to 70% by mass is particularly preferable.

The porous powder used in the present invention is:
There is no particular limitation as long as it is a porous powder that can be blended with 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 of the porous powder, 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. Is larger, water can be more stably 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 microbeads P-1500, P-1505, and P-
1000, P-700, P-400, L-1500,
Examples thereof include PL-700, LB-1500 (produced by Catalyst Kasei Kogyo Co., Ltd.), silica beads SB-700 (produced by Miyoshi Kasei Co., Ltd.), and Celluloflow (produced by Asahi Kasei Corp.).

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

The compounding amount of the porous powder is preferably 0.5 to 20% by mass based on the total amount of the P / O type cosmetic. More preferably, the content is 1 to 15% by mass. Further, 3 to 10% by mass is particularly preferable.

In the present invention, the porous powder may be constituted as a powder component as all components in the powder component. However, in consideration of the usability of the P / O type cosmetic, other powders may be blended. Is preferred.

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 with 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, oxide 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 as the organic powder, nylon powder, polyethylene powder, polystyrene powder , Silicone powder, methyl methacrylate powder, polytetrafluoroethylene powder, wool powder, silk powder and the like. In addition, Red No. 202, Red No. 226,
Red No. 405, Yellow No. 401, Blue No. 404, Orange 20
Organic pigments such as No. 3 and the like. 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, the compounding amount of all the powder components including the porous powder is preferably 0.5 to 59% by mass based on the total amount of the P / O type cosmetic. More preferably, 5.0 to 45% by mass.
It is. Further, 10 to 35% by mass is particularly preferable.

As described above, water used in the present invention exists in a state of being absorbed inside the porous powder.
The compounding amount of water is preferably 0.1 to 30% by mass based on the total amount of the P / O type cosmetic. More preferably, it is 1.0 to 30% by mass, and further preferably 3 to 20% by mass. Also, 5-1
5% by weight is particularly preferred. In particular, when 1% by mass of water is incorporated in the P / O type cosmetic, an aqueous component is easily incorporated, and when 3% by mass is incorporated, a moist feeling is remarkably imparted,
The moisturizing effect is enhanced. Further, by adding 5% by mass or more, a sufficient refreshing feeling can be provided.

In the present invention, the aqueous component is dissolved in water, absorbed into the porous powder together with water, and can be stably incorporated into the P / O type cosmetic. Aqueous components suitably used include, for example, polyethylene glycol, propylene glycol, 1,3-
Polyhydric alcohols such as butylene glycol, hexylene glycol, dipropylene glycol, glycerin and diglycerin, sugar alcohols such as xylitol, sorbitol, maltitol, maltose, 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 can be mentioned.

The oil gelling agent used in the present invention is not particularly limited as long as it is an oil gelling agent that can be blended with cosmetics. Examples of oil gelling agents include, for example, monoalkyltrimethylammonium salts (such as stearyltrimethylammonium chloride and lauryltrimethylammonium chloride), dialkyldimethylammonium salts (such as distearyldimethylammonium chloride), and benzyldimethylstearylammonium chloride. Organic modified clay minerals modified with quaternary ammonium salts or the like (clay minerals include bentonite, veegum, laponite, hectorite, etc.), dextrin laurate, dextrin myristate, dextrin palmitate, dextrin stearate, Dextrin isopalmitate, dextrin isostearate, dextrin behenate, dextrin coconut oil, dextrin oleate,
(Palmitic acid / stearic acid) dextrin, dextrin fatty acid ester such as (palmitic acid / 2-ethylhexanoic acid) dextrin, zinc myristate, magnesium myristate, zinc palmitate, zinc stearate, magnesium stearate, aluminum stearate, Examples include metal soaps such as calcium stearate, sucrose fatty acid esters, and amino acid derivatives. One or more of these oil gelling agents can be arbitrarily selected and blended. In the present invention, among the above oil gelling agents, organically modified clay minerals are most preferred. As the oil gelling agent of the present invention, a commercially available product can be used. Commercially available products include, for example, Benton 38, 34, and 27 (both manufactured by RHEOX), which are organically modified clay minerals, and Leopard KL and T, which are dextrin fatty acid esters.
T, KS, TL, KE, MK, MKL (all manufactured by Chiba Flour Milling Co., Ltd.) and the like.

The amount of the oil gelling agent is preferably 0.05 to 10% by mass based on the total amount of the P / O type cosmetic. More preferably, the content is 0.08 to 5% by mass. Particularly, 0.1 to 3% by mass is preferable.

In the P / O type cosmetic of the present invention, in addition to the above-mentioned components, other components usually used for 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 enhancers, antiseborrheic agents, anti-inflammatory agents, fresheners, fragrances, etc. If necessary, it can be appropriately compounded within a range that does not impair the effects of the present invention. The surfactant is a technical idea that the present invention allows water and oil to coexist stably without using a surfactant. It does not deny the composition of the agent at all.

The P / O type cosmetic of the present invention can be widely applied to various forms, especially sticky makeup cosmetics such as lipstick, eye shadow, foundation and the like. And the form which the P / O type cosmetics of this invention can take is not limited to these forms.

Although the method for producing the P / O type cosmetic of the present invention is not particularly limited, it is preferred that an excess amount of water or an excess amount of water containing an aqueous component (hereinafter simply referred to as “water” hereinafter) be used. After the powder is sufficiently absorbed, the powder is dried with a dryer or the like to remove excess water, the amount of water is determined, and the porous powder that has absorbed a predetermined amount of water is removed. To manufacture. Next, this powder and other components can be mixed and obtained by a conventional method.

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.

[0029]

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] Refreshing feeling, spread to skin,
For each of the evaluation items for fit, moistness, and refreshing, use tests were conducted by 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. 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 change in appearance after 4 weeks was evaluated by storing under temperature conditions of 40 ° C., room temperature (RT), 40 ° C., and 50 ° C., and storing under cycle temperature conditions 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 occurred at each temperature condition. ×: Deterioration such as separation or thinning occurs under any temperature conditions.

[Breaking Strength Test] A sample filled in a usual dispensing stick type cosmetic container was dropped from a height of 50 cm. An erect, inverted, or sideways drop was defined as one cycle, and a test piece that did not break after three cycles was passed. (Evaluation) ○: Passed ×: Fail

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 (24) 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, it was uniformly mixed with (19) to (23). (B); On the other hand, (1) to (11) and (2)
5) was heated and dissolved. (C): Next, (A) was added to (B) and uniformly dispersed.

[0036]

[Table 1]

* 1: Silica microbead LB-150
0 * 2: Silica microbead PL-700 * 3: Silica microbead L-1500

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

[0039]

[Table 2]

As can be seen from Table 2, the stick foundations of Examples 1 to 6 according to the present invention have a sufficient feeling of use, ease of use, stretch to the skin, fit and moist feeling. , Stability with time and breaking strength 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 11) Stick foundations having the formulations shown in Table 3 were prepared according to Example 1.

[0042]

[Table 3]

* 1: Silica microbead LB-150
0 * 2: Silica microbead PL-700 * 3: Silica microbead L-1500

Table 4 shows the evaluation results of Examples 7 to 11 described above.

[0045]

[Table 4]

As can be seen from Table 4, all of the stick foundations of Examples 7 to 11 according to the present invention have a sufficient refreshing feeling, spreading to the skin, a fit feeling and a moist feeling in use feeling and usability. , Stability with time and breaking strength were also good, and excellent effects were obtained.

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 12 Lipstick Component Blended 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) Celesin 3.0 (6) Hydrogenated jojoba oil 1.0 (7) Silica microplate PL-700 10.0 (8) Deionized water 8.0 (9) Butylene glycol 4.0 ( 10) Benton 38 1.0 (11) Mica coated with titanium dioxide 5.0 (12) Red 202 0.7 (13) Titanium oxide 3.0 (14) Bengala 0.7 (15) Yellow iron oxide 1.5 ( 16) Black iron oxide 0.1

<Preparation 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, a water-absorbing powder is prepared. On the other hand, (1)-
(6) is heat-dissolved uniformly, and the water-absorbing powder and (10) to (16) are added thereto, dispersed uniformly, poured into a lipstick mold, and cooled.

Example 13 Eye Shadow Component Compounding 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) Leopard KL 2.0 (12) Sericite 18.0 (13) Preservative appropriate amount (14) Fragrance appropriate amount

<Production method> (1) to (6) and (13)
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, (9) and (10) were absorbed in the pores of (8), (7), (11) ( After adding 12) and mixing uniformly at 80 ° C., add (14) to obtain this product.

[0052]

As described in detail above, according to the present invention,
Contains oil and water with excellent feeling of use, ease of use, such as non-stickiness, stretch to the skin, fit, and moist feeling, and also has a refreshing feeling, excellent stability over time and shape retention stability. A P / O type cosmetic is obtained.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) A61K 7/027 A61K 7/027 7/032 7/032 F term (Reference) 4C083 AA082 AA112 AA122 AB171 AB232 AB242 AB432 AB442 AC012 AC062 AC112 AC122 AC372 AC422 AC582 AC662 AC792 AD112 AD152 AD172 BB11 BB26 BB60 CC01 CC12 CC13 CC14 DD11 EE01 EE06

Claims (4)

[Claims] 1. A non-emulsifying powder-in-oil-dispersed cosmetic comprising an oil, a water-absorbing porous powder and an oil gelling agent. 2. The non-emulsifying powder-in-oil dispersion cosmetic according to claim 1, wherein the porous powder is porous silica. 3. The content of the porous powder is from 0.5 to 20% by mass based on the total amount of the powder-dispersed cosmetic in non-emulsified oil.
Or the non-emulsifying powder-in-oil-dispersed cosmetic according to item 2. 4. The non-emulsifying powder-in-oil dispersion cosmetic according to claim 1, wherein the oil gelling agent is an organically modified clay mineral.