JPH04368313A - O/w type gelatinous cosmetic - Google Patents

Abstract

PURPOSE:To obtain a high-viscosity cosmetic containing a large amount of an oil agent, having excellent stability, beautiful appearance, sufficiently showing functions of oil agent corresponding to purposes by combining plural oil phase parts having equal water phase part compositions, especially plural O/W type emulsions. CONSTITUTION:Two or more oil phases (e.g. combination of dimethylpolysiloxane and dimethylpolysiloxane or combination of isooctanoic acid triglyceride, myristic acid octyldodecyl and olive oil) having different compositions are slowly added to a water phase of glycerol, purified water, polyoxyethylene (20) octyldedecyl ether, etc., while stirring and prepared into an O/X type emulsion to give a gelatinous cosmetic. The cosmetic is obtained by dispersing >=70wt.% based on total amount of sum of two or more oil phases having different compositions to a water phase and comprises a gelatinous O/W type emulsion having >=10,000cs viscosity.

Description

[Detailed description of the invention]

0001

[Field of Industrial Application] The present invention relates to an O/W type cosmetic gel containing a plurality of types of oil phases with different compositions dispersed in an aqueous phase, and more specifically, it relates to an O/W type cosmetic gel containing a large amount of oil and having a high viscosity. and
The present invention relates to a cosmetic that has excellent stability, has a beautiful appearance, can fully exhibit the function of an oil agent depending on the purpose, and can provide various textures.

0002

[Prior Art] Liquid oil is indispensable as a cosmetic base, and has traditionally been used to impart flexibility and lubricity to the skin or hair, provide barrier properties by forming a hydrophobic film,
It is used for the purpose of expressing moisture loss suppressing ability and controlling appearance such as gloss, and as a dispersant and binder for raw materials in makeup cosmetics. The dosage forms of cosmetics containing liquid oil include O/W emulsion, W/O emulsion, W/O/W emulsion, multiphase separation type, and liquid oil itself.O/W emulsion It has a non-sticky, refreshing feel and is used as a moisturizing cream, emulsion, etc. W/O emulsions have a strong protective effect and emollient effect on the skin, and are therefore used as cold creams, hand creams, massage creams, etc., and also as make-up cosmetics. W/O/W emulsions are used as massage creams, nutritional creams, milky lotions, etc., as well as skin care cosmetics, cleaning cosmetics, makeup cosmetics, hair care cosmetics, etc.

0003

[Problem to be Solved by the Invention] In recent years, the composition of cosmetics has become more and more diverse due to the diversification of consumer values and demands regarding cosmetics, and the development of a wide variety of raw materials along with advances in technology. , the required functions are becoming more complex. However, cosmetics in various dosage forms as mentioned above are
It consists of several homogeneous phases and has a simple structure despite its compositional complexity. Therefore, there are problems in that stability is extremely reduced when oil-based raw materials with poor compatibility are combined together, and that even when various oil-based raw materials with various functions are combined, their effects are difficult to express. . Under these circumstances, there has been a desire to develop cosmetics that can be blended with various oily bases while taking advantage of their properties and have excellent stability.

0004

[Means for Solving the Problems] Under these circumstances, the present inventors have conducted intensive research and have developed a method containing a large amount of oil agent obtained by combining multiple types of O/W type emulsions having the same aqueous phase composition. We discovered that high viscosity cosmetics that contain multiple types of oil phases with different compositions are independently and stably dispersed, and can fully demonstrate the characteristics of each oil base.
The invention has been completed.

That is, the present invention provides an oil phase in which two or more types of oil phases having different compositions are dispersed in an aqueous phase in a total amount of 70% by weight or more of the total composition, and a viscosity of 10,000 cs or more.
/W type emulsion.

In addition to water, the aqueous phase components used in the present invention include monoglycerides, sorbitan fatty acid esters, sucrose fatty acid esters, polyglycerin fatty acid esters, alkanolamides, amine oxides, polyoxyethylene alkyl ethers, and polyethylene glycols. Fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene polyoxypropylene block copolymer, polyoxyethylene glycerin monofatty acid ester, polyoxyethylene propylene glycol monofatty acid ester, polyoxyethylene hydrogenated castor oil, polyoxyethylene fatty acid amide, poly Nonionic surfactants such as oxyethylene alkyl amines and alkyl saccharides; alkyl sulfate salts,
Alkyl ether sulfates, fatty acid soaps, ether carboxylic acids and their salts, alkanesulfonates, α-olefin sulfonates, higher fatty acid ester sulfonates,
Dialkyl sulfosuccinate, monoalkyl sulfosuccinate, polyoxyethylene monoalkyl sulfosuccinate, sulfonate of higher fatty acid amide, sulfate of glycerin fatty acid ester, sulfate of higher fatty acid alkylolamide, acylated amino acid salt Anionic surfactants such as alkyltrimethylammonium salts, dialkyldimethylammonium salts, alkyldimethylbenzylammonium salts, alkylpyridinium salts, alkylisoquinolinium salts; imidazoline type, amide amino acid salts , alkylbetaine type, alkylsulfobetaine type, etc.; monoalcohols such as ethanol; glycerin, ethylene glycol, diethylene glycol, triethylene glycol, hexanediol, butylene glycol, heptanediol, propylene glycol, sorbitol, maltitol, etc. polyol; other moisturizing agents, water-soluble vitamins, amino acids, sugars, etc.

[0007] The oil phase components used in the present invention include volatile cyclic silicones such as four-membered rings and five-membered rings;
Dimethylpolysiloxane of 1,000 cs or less, 1,0
Hydrocarbons such as methylphenylpolysiloxane, squalane, and liquid paraffin of 00 cs or less, branched alcohols, branched fatty acids, higher fatty acid esters, benzoic acid esters, triglycerides, diglycerides, rosin derivatives, etc. at room temperature (25 ℃) can be used. Particularly preferred are one or two glycerin diesters of fatty acids such as squalane, 2-ethylhexanoic acid, myristic acid, oleic acid, and isostearic acid;
Octyldodecyl myristate, isopropyl myristate, four-membered or five-membered dimethylpolysiloxane, 1
Examples include dimethylpolysiloxane and methylphenylpolysiloxane having a molecular weight of 00cs or less.

[0008] Here, liquid state at 25°C means 5°C from the bottom of the tube.
Place the sample up to the height of the A line in a flat-bottomed test tube with an inner diameter of 30 mm and a height of 120 mm with marked lines at the heights of 5 mm (A line) and 85 mm (B line), and place this in a constant temperature water bath at 25 °C. After the sample temperature reaches 25°C, the sample is left for 10 minutes or more, then placed on a horizontal table, and the time it takes for the top of the liquid to reach line B is within 90 seconds.

Further, in the present invention, a water-repellent treated powder can be used as the oil phase component. Examples of such powders include anhydrous silicic acid, magnesium silicate, talc, kaolin, mica, titanium mica, bismuth oxychloride, zirconium oxide, zinc oxide, titanium oxide, precipitated calcium carbonate, yellow iron oxide, red iron oxide, and black iron oxide. , chromium oxide, chromium hydroxide, carbon black, calamine, loess, polyamide, polyester, polyethylene, polypropylene, polystyrene, polyurethane, epoxy resin, carbonate resin, melamine resin, acrylic acid resin, silicon resin, fluororesin, vinyl resin ,
Urea resin, phenolic resin, red No. 204, red 205
Examples include tar-based pigments such as No. 1 and Blue No. 1. Additionally, oil-soluble polymers, antioxidants, ultraviolet absorbers, and the like can be used as oil phase additive components.

[0010] The gel cosmetic of the present invention may contain, for example, two or more O/Ws having the same composition in the aqueous phase and different compositions in the oil phase.
Produced by mixing mold emulsions.

The O/W emulsion used here is prepared by gradually adding an oil phase to an aqueous phase while stirring, and has a viscosity of 10,000 cs or more, particularly 20,000 cs or more.
It is preferable that it is 000 cs or more. In addition, the proportion of the oil phase component in the O/W emulsion is 60 to 98
It is preferably 70 to 95% by weight, especially 70 to 95% by weight. If the oil phase component is less than 60% by weight, there is a problem with stability;
If it exceeds 8% by weight, it becomes difficult to mix with other O/W emulsions.

The ratio and viscosity of the oil phase component of the above O/W emulsion are such that the ratio of the oil phase component contained in the gel cosmetic of the present invention obtained by mixing these is 70% by weight or more,
Viscosity is 10,000 cs or more, preferably 20,000 cs
It is necessary to appropriately select and combine them so that the value is equal to or greater than cs. The viscosity of the gel cosmetic of the present invention is 10.00
If it is less than 0 cs or if the oil phase component is less than 70% by weight, the stability will be insufficient.

The gel cosmetic of the present invention can be produced, for example, by the following simultaneous filling method. That is, by making the filling nozzle for pouring out each O/W type emulsion into a plurality of bundled or multi-layered filling nozzles, and filling multiple O/W type emulsions into a container at the same time. , the gel cosmetic of the present invention is prepared. At that time, by controlling the diameter and position of each nozzle, emulsion pouring speed, etc., each O/W type emulsion is filled to have an arbitrary composition or to draw a desired pattern with various changes. can do. Alternatively, another O/W type emulsion may be injected into the already filled O/W type emulsion using a nozzle.

[0014] The gel cosmetic of the present invention produced by such a method exhibits a stable three-dimensional pattern when O/W emulsions with different optical appearances are combined.
Although this is preferable from an aesthetic point of view, depending on the purpose, a plurality of O/W emulsions may be uniformly mixed to uniformly disperse the plurality of oil phases.

The gel cosmetic of the present invention can be used as a body wash, a face wash, a hair wash, a massage agent, a pack, a foundation, a base cosmetic, a basic cosmetic, a hair rinse, a hair treatment, a hair styling agent, a hair care agent, etc. Applicable.

[0016]

[Operations and Effects of the Invention] The gel cosmetic of the present invention is stably blended with a plurality of types of oil phases at high concentrations without losing their respective properties. This is due to the fact that the oil phase, which is the dispersed phase, accounts for an extremely high proportion of the entire cosmetic product, so it is physically dense and highly viscous, and the dispersed phase particles have almost no mobility. This is thought to be because the composition of the water phase of the O/W emulsion is the same, and the compositional equilibrium of the continuous phase is established at the same time as they are mixed, so that movement of the dispersed phase is less likely to occur.

[0017] Therefore, the cosmetic composition of the present invention is stably formulated with multiple oil phases independently at high concentrations without losing their properties, has a beautiful appearance, and is particularly suitable for basic cosmetics, makeup cosmetics, It has extremely high applicability in the field of hair cosmetics and the like.

[0018]

[Examples] The present invention will be explained in more detail with reference to Examples, but the present invention is not limited thereto.

Example 1 Facial cleanser (A) O/W emulsion 1

(Parts by weight) (1) Glycerin

8.0 (2) Purified water

13.0 (3
) Polyoxyethylene (20) Octyldodecyl ether 4.0 (4) Dimethylpolysiloxane (5cs)
50.0 (5) Dimethylpolycyclosiloxane (n=5)
25.0 (Preparation method) While stirring, slowly add the mixed oil phase of components (4) and (5) to the aqueous phase in which components (1) to (3) are uniformly dissolved, and continue stirring for an additional 60 minutes. Continue, O/
W emulsion 1 was prepared. Viscosity is approximately 25,000c
It was s. (B) O/W emulsion 2

(Parts by weight) (1) Glycerin

8.0 (2) Purified water

13.0 (3
) Polyoxyethylene (20) octyl dodecyl ether 4.0 (4) Isooctanoic acid triglyceride
35.0 (5) Octyldodecyl myristate 35.0
(6) Olive oil

5.0 (Preparation method) While stirring, slowly add the mixed oil phase of components (4) to (6) to the aqueous phase in which components (1) to (3) are uniformly dissolved, and continue stirring for an additional 60 minutes. Continue, O/
W emulsion 2 was prepared. Viscosity is approximately 35,000c
It was s. (C) Facial cleansing emulsions 1 and 2 at a ratio of 1:1 using two nozzles.
A facial cleanser was obtained by filling a glass container with a mixing ratio of . The resulting facial cleanser has a complex geometric pattern of transparent parts and milky white parts, and is visually beautiful and extremely stable, with no pattern disturbances even after storage at 40°C for 3 months. There was almost no bleeding. This facial cleanser had a higher cleaning ability than Emulsions 1 and 2 alone, and was able to reliably remove a wide range of makeup stains, from silicone-based to polar oil-based makeup.

Comparative Example 1 Facial cleanser (A) O/W emulsion 1b

(Parts by weight) (1) Glycerin

11.0 (2) Purified water

20.0 (3
) Polyoxyethylene (20) Octyldodecyl ether 4.0 (4) Dimethylpolysiloxane (5cs)
45.0 (5) Dimethylpolycyclosiloxane (n=5)
20.0 (Preparation method) O/W in the same manner as in Example 1
Emulsion 1b was prepared. Viscosity is approximately 10,000c
It was s. (B) O/W emulsion 2b

(Parts by weight) (1) Glycerin

11.0 (2) Purified water

20.0 (3
) Polyoxyethylene (20) octyl dodecyl ether 4.0 (4) Isooctanoic acid triglyceride
30.0 (5) Octyldodecyl myristate 30.0
(6) Olive oil

5.0 (Preparation method) In the same manner as in Example 1, O/
W emulsion 2b was prepared. Viscosity is approximately 10,000
It was cs. (C) Facial cleanser emulsions 1b and 2b were mixed into 1 part using two nozzles.
A facial cleanser was obtained by filling a glass container at a mixing ratio of :1. A storage stability test was conducted on the facial cleansers of Example 1 and Comparative Example 1. Evaluation was performed visually according to the following criteria. The results are shown in Table 1. Evaluation criteria: No change in appearance ○ Separation ×

002
1]

[Table 1]

Example 2 Skin protection cosmetic (A) O
/W Emulsion 3

(Parts by weight) (1) 1,3-butylene glycol
2.0 (2) Glycerin

3.5 (3) Purified water

10.0 (
4) Polyoxyethylene (20) hydrogenated castor oil
2.0 (5) Dimethylpolycyclosiloxane (n=4)
80.0 (6) Dimethylpolysiloxane (1 million cs)
2.5 (Preparation method) Components (1) to (4)
Component (5), in which component (6) was completely dissolved, was slowly added under stirring to the aqueous phase in which Component (6) was uniformly dissolved, and stirring was continued for an additional 60 minutes to prepare O/W emulsion 3. The viscosity was approximately 30,000 cs. (B) O/W emulsion 4

(Parts by weight) (1) 1,3-butylene glycol
2.0 (2) Glycerin

3.5 (3) Purified water

10.0 (
4) Polyoxyethylene (20) hydrogenated castor oil
2.0 (5) Olive oil
40.0 (
6) Jojoba oil
42
．． 5 (Preparation method) Slowly add the mixed oil phase of components (5) and (6) under stirring to the aqueous phase in which components (1) to (4) are uniformly dissolved, and continue stirring for an additional 60 minutes. O/W emulsion 4 was prepared. The viscosity was approximately 35,000 cs. (C) Skin protection cosmetic Emulsion 4 was injected into Emulsion 3 previously filled in a container using a nozzle in a spiral pattern at a ratio of 5:1 to obtain a skin protection cosmetic. The obtained skin protection cosmetic had a spiral white opaque part in a transparent or translucent gel, was beautiful in appearance, and had excellent stability. This cosmetic had a strong skin protection ability, not only protecting the skin from external stimuli and irritants, but also having an extremely excellent moisturizing ability. Also,
Using the same raw materials, components (5) and (6) of emulsion 3
) and an oil phase in which components (5) and (6) of emulsion 4 were mixed, and an aqueous phase in which other components were mixed, but a stable product could not be obtained.

Example 3 UV protection cosmetic (A)
O/W emulsion 5

(Parts by weight) (1) Propylene glycol
1.5 (2) Glycerin

2.0 (3) Purified water

5.0 (4
) Polyoxyethylene (25) Octyldodecyl ether 1.5 (5) Dimethylpolysiloxane (10cs)
70.0 (6) Dimethylpolysiloxane (50cs)
20.0 (Preparation method) While stirring, slowly add the mixed oil phase of components (5) and (6) to the aqueous phase in which components (1) to (4) are uniformly dissolved, and continue stirring for an additional 60 minutes. Subsequently, O/W emulsion 5 was prepared. Viscosity is approximately 40.0
It was 00cs. (B) O/W emulsion 6

(Parts by weight) (1) Propylene glycol
1.5 (2) Glycerin

2.0 (3) Purified water

5.0 (4
) Polyoxyethylene (25) octyl dodecyl ether 1.5 (5) Diglyceride

30.0 (6) Squalane

30.0 (7) Octyl methoxycinnamate
30.0 (Preparation method) Ingredients (
Components (1) to (4) were added to the aqueous phase in which they were uniformly dissolved under stirring.
Slowly add the mixed oil phase of 5) to (7), and then add the mixed oil phase of 60
Stirring was continued for a minute to prepare O/W emulsion 6. The viscosity was approximately 45,000 cs. (C) Ultraviolet protection cosmetic emulsions 5 and 6 were filled into a transparent container using a double nozzle at an arbitrary mixing ratio to obtain an ultraviolet protection cosmetic. Conventionally, when trying to change the composition ratio of a UV protection agent, the stability of the composition often changed significantly, but in the present invention, the desired value can be obtained by simply changing the mixing ratio of multiple O/W emulsions. We were able to stably prepare a cosmetic with UV protection ability.

Claims (2)

[Claims] Claim 1: Consists of an O/W emulsion in which two or more types of oil phases with different compositions are dispersed in an aqueous phase in a total amount of 70% by weight or more of the total composition, and the viscosity is 10,000 cs or more. A gel-like cosmetic characterized by: 2. The gel cosmetic according to claim 1, which is obtained by mixing two or more O/W emulsions having the same composition in the aqueous phase and different compositions in the oil phase. .