JPH03141212A - Nonaqueous cosmetic - Google Patents

Abstract

PURPOSE:To obtain a stable nonaqueous cosmetic in sol state by blending a low polar oil with metallic soap as a thickening agent and nonionic surfactant as a gel stabilizer. CONSTITUTION:A low polar oily solvent (e.g. isoparaffin) is blended with 0.1-30wt.% nonionic surfactant and metallic soap as active ingredients and prepared to give the objective substance. A nonalkali metallic salt of long-chain fatty acid is used as the metallic salt, aluminum soap is optimal and sorbitan fatty acid ester having <=6 HLB value is used as the nonionic surfactant. The objective substance is applicable to a nonaqueous aromatic and provides a nonaqueous sol aromatic having excellent durability of fragrance, stability of fragrant tone and beautiful appearance.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides a non-aqueous sol containing a metal soap as a thickener and a nonionic surfactant as a sol stabilizer. The present invention relates to cosmetics and non-aqueous sol fragrances.

(Conventional technology) As non-aqueous sol cosmetics, cosmetic oil,
Suntan oil, oil-based makeup cosmetics, etc. are available, and are in high demand due to their good appearance, unique feel, and ease of use. In these products, thickeners are used to give them a certain viscosity in order to obtain a suitable feel when used. As thickeners, organic bentonite, hydrophobic silica, dextrin fatty acid Nisdel, 12-hydroxystearic acid, etc. are often used.

Furthermore, conventional non-aqueous fragrances have mostly been crystallized using metal soaps, solid waxes, etc., and those using α-limonene as a base are well known.

(Problem to be solved by the invention) The above-mentioned thickeners conventionally used in non-aqueous sol cosmetics have drawbacks such as unstable quality, high price (and poor fluidity). there were.

In addition, conventional non-aqueous fragrances are solid, whitish lumps with no transparency, and even when colored with pigments, they are not very beautiful. Furthermore, products using α-limonene as a base have a strong citrus aroma unique to α-limonene, and because it is necessary to incorporate a large amount of fragrance, they have the disadvantage of being expensive in terms of raw material costs. there were.

Furthermore, the base material is highly volatile, making it difficult to maintain a constant quality.

On the other hand, metal soap is a very cheap and frequently used thickener, but when a solution is prepared in combination with a low polarity oil that has a high thickening effect, metal soap can be heated to 90°C to 95°C. Even if it completely dissolves and forms a stringable sol, the temperature at 60℃
When the soap is cooled to a certain temperature, microcrystals of the metal soap gradually begin to precipitate, causing a phase transition and becoming an opaque jelly-like gel. This gel shrinks after a while, and a syneresis phenomenon occurs in which the solvent separates.

As described above, although metal soaps are useful thickeners in terms of price and quality stability, it has been extremely difficult to apply them to non-aqueous sol cosmetics and fragrances. The present invention aims to overcome such difficulties and provide stable non-aqueous sol cosmetics and fragrances by enabling the use of metal soaps in non-aqueous sol.

(Means for Solving the Problems) In order to solve the above problems, we focused on the peptizing action of nonionic surfactants. Peptization is a phenomenon in which the viscosity of a low polar oil solution of metal soap is reduced by adding a small amount of a polar substance such as alcohol, amine, or phenol. Effective peptizers are polar substances that have a large ability to coordinate with metals and have functional groups that can form hydrogen bonds. These are thought to form hydrogen bonds with metal soaps, break coordination bonds between metal and oxygen atoms, and disperse molecules into smaller sizes. Therefore, as the steric hindrance of the peptizer molecules increases, the peptizing effect decreases, and nonionic surfactants based on fatty acid esters and fatty acid ethers have a very mild peptizing effect. Therefore, the nonionic surfactant cuts the coordination bond between the metal and the oxygen atom in the polymer chain of the metal soap to an appropriate size, increasing the solubility of the metal soap in the solvent and making it suitable for use even at low temperatures. Soap crystals do not precipitate, making it possible to maintain a stable state.

(Function) In the present invention, 0.1 to 30% by weight of a nonionic surfactant is blended into a low polar oily solvent, and a required amount of metal soap is added. As the low-polarity oily solvent, hydrocarbons commercially available as raw materials for oils and fats for cosmetics and esters with low polarity are used.

For example, paraffins, naphthenes, squalane, pristane, ceresin, microcrystalline wax,
Vaseline etc. Non-alkali metal salts with long-chain fatty acids are used as metal soaps, and aluminum soaps in particular have a relatively low melting point and excellent thickening properties, making them easy to use and ideal for the present invention. Examples of nonionic surfactants include sorbitan fatty acid ester, glycerin fatty acid ester, polyglycerin fatty acid ester, propylene glycol fatty acid ester, pentaerythritol fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene sorbitol fatty acid ester, and polyoxyethylene glycerin. Fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene castor oil, polyoxyethylene hydrogenated castor oil, polyoxyethylene beeswax derivatives, etc. used. In order to uniformly dissolve in a low polar solvent, a relatively lipophilic type with a low HLB value of 6 or less is preferable because a transparent sol can be obtained.

The above mixture is heated to dissolve the metal soap and form a spinnable sol. When it is then cooled, the coordination bond between the metal and oxygen atoms is broken due to the peptizing action of the nonionic surfactant, and the molecules are cut into appropriate sizes and dispersed, creating a sol state even at room temperature. can be kept. In addition, compared to conventionally used peptizing agents such as ethanol, isopropyl alcohol, and phenol, the nonionic surfactant used in the present invention has a weak peptizing effect, so a small amount does not have a large effect, so mixing errors can be avoided. It is easy to handle with little influence. Therefore, the present invention can be applied not only to viscous sol-like liquid cosmetics but also to pour-in cosmetics, in which the ingredients in the formulation separate due to structural changes due to temperature changes.
It shows the effect of preventing the so-called sweating phenomenon.

Furthermore, the present invention can also be applied to non-aqueous fragrances. In this case, if you use isoparaffin as the low polar oil and a substance with an HL B value of 6 or less as the nonionic surfactant, you can create a transparent sol-like fragrance that is less affected by the fragrance tone of the base and has a beautiful appearance. can be obtained. The most suitable isoparaffin is a volatile hydrocarbon having a specific gravity of 0.70 to 0.85 and a degree of polymerization of 5 or less, and the volatility can be adjusted depending on the degree of polymerization, and the persistence of the fragrance can also be adjusted.

(Effects) Further, the effects of the present invention will be explained in detail with reference to Examples.

Example 1. Sun oil (weight%) ++1 Liquid paraffin 94.
8(2) Aluminum stearate 1.
0(3) Polyoxyethylene hardened mustard oil 1.
0(5E, 0.) (4) Octyl Valadimethylaminobenzoate 3.0
(5) Fragrance 0.2 Manufacturing method The components of (1) to (3) are mixed and homogenized, and heated to 90 to 95°C to form a sol. After cooling to room temperature (4
) to (5) are added.

Example 2. Cosmetic oil (% by weight) ++1 Tri(caprylic/capric acid) 40.0 Octyldodecyl myristate Liquid paraffin Aluminum stearate Magnesium stearate Sorbitan trioleate Fragrance Roseoxybenzoic acid ester 30.0 28.7 0.3 0.2 0.5 0.2 0.1 The components of manufacturing method (3) to (6) are mixed and homogenized to obtain 100 to 1)0.
Heating to ℃ forms a sol. After cooling to room temperature, components (8) previously dissolved in (1) to (2) and (7) are added.

Example 3. Non-aqueous cream Ceresin Microcrystalline wax Low molecular weight polyethylene vaseline Liquid paraffin (% by weight) 8.0 6.0 2.0 36.0 46.7 Glycerin (6) Aluminum stearate (7) Decaglyceryl bentaoleny (8) Fragrance (9) Paraoxybenzoic acid ester 0.5 0.5 0.2 0.1 Manufacturing method After weighing and homogenizing the ingredients of (1) to (7) in sequence,
Form a sol at 90-95°C. Cool to room temperature and add ingredients 8) to (9).

Example 4. Oil-based solvent eyeliner (wt%) 27.8 3.5 1.5 4.0 40.0 1.0 1.0 20.0 Isoparaffin Low molecular weight polyethylene Microcrystalline wax Organic bentonite Isoparaffin Aluminum stearate Decaglyceryl Pentastair Rate black iron oxide C9) 99% by weight ethyl alcohol l,
00G paraoxybenzoic acid ester 0.2
The components of manufacturing methods (5) to (7) are mixed to form a sol at 90 to 95°C, and the sol is cooled to room temperature. Separately, components (1) to (3) were dissolved and homogenized at 85 to 90°C and cooled, and then the above sol and +41. Add ingredient +81 and homogenize thoroughly using a homomixer. Finally, after adding (9) to Q[1] and making it uniform, it is processed using three rollers.

Example 5. Oil-based solvent-based mascara Isoparaffin Aluminum stearate Magnesium myristate Polyoxyethylene (3) Castor oil Isoparaffin Microcrystalline wax White beeswax (wt%) 40.0 1.0 0.5 0.5 30.0 4.0 1.0 (8) Low molecular polyethylene 2.5 (
9) Liquid paraffin 3.00 (I
l Organic bentonite 5.50
1) Black iron oxide 10.0
0299% by weight ethyl alcohol i.

03 Paraoxybenzoic acid ester 0.3 Manufacturing method The components of (1) to (4) are heated to 95 to 100°C and cooled to form a sol. Ingredients (5) to (9) are 85 to 9
After melting at 0℃ and cooling, the above sol and Or1~0υ
Add the ingredients one by one, mix homogenized with a homomixer,
Furthermore, components C1 to C03 are added, mixed uniformly, and finally treated with three rollers.

Example 6゜Lipstick (pour-in type) (1) (2) (3) (% by weight) Diisostearyl malate 12.0 Octyldodecanol 10.0 Adsorption purified lanolin 5.0 Candelilla wax Carnauba wax Ceresin Fluid polyisobutylene Liquid paraffin aluminum stearate sorbitan monooleate titanium oxide, tar pigment antioxidant, preservative, fragrance 2.0 2.0 5.0 8.0 20.0 0.5 0.5 7.5 Proper amount production method (8) Heating ingredients from 00 to 90-95°C and cooling to form a sol. Ingredients (1) to (7) are 80 to 85
0υ, 0 melted at °C and treated with three rollers in advance
Add the ingredients from step 3, add α-ri and sol, and homogenize to obtain a bulk ingredient. Pour this into a metal plate at 70-75°C.

Example 7 Oil foundation (wt%) 13.0 0.5 0.5 2.0 7.0 0.6 10.0 1O30 8,0 0,2 28,0 5,0 15,0 2 Liquid paraffin Aluminum stearate Hexaglyceryl tristearate Isoprobyl palmitate Microcrystalline wax Candelilla Rou dimethylpolysiloxane (IOC8) Methylphenyl polysiloxane Ceresin Bala oxybenzoic acid ester Sericite Iron oxide Titanium oxide fragrance manufacturing method (1) to (3) Dissolve the ingredients by heating at 90 to 95°C,
Let a sol form. (4) ~O0 component is 80~8
Melt and homogenize at 5°C, add the ingredients of OD ~ 03, previously mixed and pulverized using an atomizer, the previous sol, (141), knead to homogenize, cool, and then process with three rollers to make a bulk. Pour into a booklet at ~90°C.

Example 8. Car fragrance (weight%) 1.5-2) 80.0 5.0 5.0 60 5.0 Light isoparaffin (polymerization degree aluminum stearate sodium stearate polyoxyethylene hydrogenated castor oil (5E, O) Fragrance manufacturing method Mix and homogenize ingredients (1) to (4) at 95 to 100°C.
to form a sol. After cooling to room temperature (
Add 5).

Example 9. Room fragrance + l) Isoparaffin (degree of polymerization 2-3 (2) Aluminum stearate (3) Sorbitan trioleate (4) Fragrance (weight%) ) 71.5 15.0 5.5 8.0 Manufacturing method +1) - ( 3) Mix and homogenize the ingredients and heat to 95-100℃
to form a sol. After cooling to room temperature (
Add 4).

The stability of the sol state of the above examples was investigated and shown in Table 1 together with comparative examples. The formulation of the comparative example is as follows.

Comparative example 1 Sun oil (1) Aluminum stearate (2) Liquid paraffin (3) 99% ethyl alcohol (wt%) 1.0 94.8 1.0 (4) Octyl baladimethylaminobenzoate 3.0 (5)
) Fragrance 0.2 Manufacturing method After heating the ingredients of (1) to (2) to 90 to 95°C to form a sol, adding (3) at 75 to 80°C and cooling to room temperature, (4 ) to (5) are added.

Comparative example 2. Room fragrance (aqueous) Purified water Glycerin Isopropyl alcohol Carrageenan Fragrance (wt%) 82.0 5.0 3.5 2.5 7.0 Manufacturing method After completely dissolving (4) in +1), (2) In addition, (
Finally, add 5) dissolved in (3) to homogenize.

Stability evaluation was carried out by leaving the sample in a constant cycle bath (1 cycle/day) at -9°C to 25°C and observing the sol state over time.

Table 1: Stability of sol state Formation of sol was observed. On the other hand, in the comparative example, partial gelation was observed within one day, and the sol completely disintegrated on the third day. Furthermore, in Examples 8 and 9, the stability of fragrance was also evaluated.

The results are shown in Table 2.

Table 2. fragrance stability O: Stable stringable sol state Δ: Partial gelation and syneresis are observed.

No stringiness.

×: Complete gelation and syneresis. No stringiness.

From Table 1, in the examples of the present invention, in the stable examples, the fragrance duration was doubled compared to the comparative examples, and the fragrance tone was also stable.

As described above, according to the present invention, a non-aqueous cosmetic in a stable sol state could be obtained. Furthermore, when the present invention was applied to an aromatic agent, it was possible to provide a non-aqueous aromatic agent with good fragrance persistence and fragrance stability, and a beautiful appearance.

Claims (1)

[Scope of Claims] (1) A sol-like non-aqueous cosmetic comprising a low polar oil, a metal soap, and a nonionic surfactant. (2) The non-aqueous cosmetic according to claim 1, wherein the metal soap is a non-alkali metal salt of a long-chain fatty acid. (3) The non-aqueous cosmetic according to claim 1 or 2, wherein the nonionic surfactant has an HLB value of 6 or less and forms a transparent sol. (4) A sol-like non-aqueous fragrance containing a low polar oil, a metal soap, a nonionic surfactant, and a fragrance. (5) The non-aqueous fragrance according to claim 4, wherein the low polar oil is isoparaffin. (6) The non-aqueous fragrance according to claim 4 or 5, wherein the metal soap is a non-alkali metal salt of a long-chain fatty acid. (7) The nonaqueous fragrance according to claims 4 to 6, wherein the nonionic surfactant has an HLB value of 6 or less.