WO2006003733A1

WO2006003733A1 - Oily-particle-containing composition for external use

Info

Publication number: WO2006003733A1
Application number: PCT/JP2005/000203
Authority: WO
Inventors: Hidefumi Araki; Masaru Masuda; Wataru Tokue
Original assignee: Shiseido Company, Ltd.
Priority date: 2004-07-02
Filing date: 2005-01-11
Publication date: 2006-01-12
Also published as: CN1980634A; CN1980634B

Abstract

An oily-particle-containing composition for external use which has excellent stability, evenness of particle diameter, and excellent applicability and which is obtained through simple production steps. The composition for external use comprises an aqueous phase and, dispersed therein, oily particles comprising a dextrin fatty acid ester and a liquid oily matter, the oily particles satisfying the following requirements 1) and 2). 1) The content of the dextrin fatty acid ester is 5-40 mass% based on the whole oily particles. 2) The average particle diameter of the oily particles is 0.05-10 mm.

Description

Specification

External composition containing oily particles

Technical field

[0001] The present invention relates to an external composition containing relatively large oil-based particles.

Background art

[0002] Oily solid particles, microcapsules, granules, etc. that have a size that can be visually observed and that can be contained in a composition for external use such as cosmetics containing solid oil have already been provided. .

[0003] For example, granulation in water (see JP-A-2-300116 (Reference 1), JP-A-3-48604 (Reference 2)), water-soluble organic solvents such as alcohol in the aqueous phase (See Japanese Patent Laid-Open No. 8-99853 (Reference 3)) and granulation examples in which a low molecular surfactant is added to the aqueous phase (see Japanese Patent Laid-Open No. 2-35935 (Reference 4)) ), And a granulation example in which a thickener or a protective colloid agent is added to the aqueous phase (Japanese Patent Laid-Open No. 4-346909 (Reference 5), Japanese Patent Publication No. 49-45224 (Reference 6), Japanese Patent No. 96783 (see Reference 7)), granulation examples in which a lipophilic activator is added to the oil phase (see Japanese Patent Laid-Open No. 346909 (Reference 8), Japanese Patent Laid-Open No. 5-96783 (Reference 9)), etc. Are known.

[0004] However, the techniques of Documents 1 and 2 recognize the non-uniformity of the particle diameter and the coalescence of the particles, and it is recognized that it is necessary to perform a process such as sieving in practical use.

[0005] In addition, the technique of Document 3 has a limitation on prescription because alcohol is used. In the technique of Document 4, the surfactant activity of the low molecular surfactant is too high, and it is extremely difficult to refine the oily particles and set the production conditions immediately. In the technology of References 5-7, since the particle size depends on the shear stress at the time of stirring, it is complicated to study the production conditions according to the viscosity. Further, the particles are isolated from the polymer solution. Difficult to do. In addition, the techniques of References 8 and 9 have problems that it is difficult to form uniform particles and there are many prescription restrictions.

[0006] Furthermore, Japanese Patent Publication No. 7-78008 (Reference 10) discloses a mixture of a semi-solid oily substance composed of a liquid-phase oily substance, a solid-phase oily substance, and Z or a surface-modified pigment. In the sticky solution A gel-like cosmetic containing colored oil particles obtained by dispersing and stirring is described. However, the technique of Reference 10 still has a problem in usability. Disclosure of the invention

[0007] The problem to be solved by the present invention is to provide an external composition containing oily particles having excellent stability, a uniform particle diameter and excellent usability by a simple production process. is there.

[0008] As a result of intensive studies aimed at solving this problem, the present inventor dispersed oily particles containing dextrin fatty acid ester and liquid oil satisfying specific conditions in a composition for external use. As a result, the inventors have found that the above-mentioned problems can be solved, and completed the present invention.

That is, the present invention provides an external composition in which oily particles containing a dextrin fatty acid ester satisfying the following conditions and a liquid oil are dispersed in an aqueous phase (hereinafter also referred to as the present external composition). It is an invention.

1) The content of dextrin fatty acid ester with respect to the total mass of oil-based particles is 5-40% by mass.

2) The average particle size force of oily particles is 0.05-10mm.

[0010] The composition for external use, the composition for external use, and preferably, the composition for external use is an oil containing components constituting oily particles, which are heated and melted in an aqueous phase component mainly composed of water. Stir and cool the mixture of the aqueous phase and oil phase obtained by adding the phase components to the oil phase to form oily particles in the aqueous phase, and add various water-soluble components as necessary. By doing so, it can be manufactured.

BEST MODE FOR CARRYING OUT THE INVENTION

[0011] A. ¾ wood

The oil phase prepared when producing the composition for external use is characterized by containing a dextrin fatty acid ester and a liquid oil as described above.

[0012] Examples of the dextrin fatty acid ester include one or more of dextrin palmitate, dextrin oleate, dextrin stearate, dextrin myristate, and the like. Select dextrin normitate. Is preferred.

[0013] The dextrin fatty acid ester is based on the total mass of the oily particles, that is, the oil phase. It is preferably 5 to 40% by mass of the total components, and particularly preferably 10 to 25% by mass. If the content of dextrin fatty acid ester is less than 5% by mass of the total oil phase component, the oil monoparticle tends to be brittle, and if it exceeds 40% by mass, the oil monotonic particle becomes hard. Too much, there is a strong tendency to cause problems in the usability of the composition for external use.

[0014] The liquid oil is an oil that is liquid at room temperature, and includes, for example, flaxseed oil, camellia oil, mackerel oil, corn oil, olive oil, apogad oil, southern power oil, castor oil, safflower oil, Quill oil, cinnamon oil, jojoba oil, grape oil, almond oil, rapeseed oil, sesame oil, castor oil, wheat germ oil, rice germ oil, rice bran oil, cottonseed oil, soybean oil, peanut oil, tea seed oil, Evening primrose oil, triglycerin, glycerin trioctanoate, glycerin triisopalmitate, etc. can be used.

[0015] Oils such as coconut oil, palm oil, and palm kernel oil can be used.

[0016] Further, as ester oils, octanoic acid esters such as cetyl octanoate, glycerin tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, hexyl laurate, etc. Lauric acid ester, isopropyl myristate, myristic acid ester such as octyldodecyl myristate, palmitic acid ester such as octyl palmitate, stearic acid ester such as isocetyl stearate, isostearic acid ester such as isopropyl isostearate, isopalmitin Isopalmitic acid esters such as octyl acid, oleic acid esters such as isodecyl oleate, adipic acid diesters such as diisopropyl adipate, sebacic acid diesters such as decyl sebacate, and diiso malate Diisostearyl malate such as stearyl can be used.

[0017] As the hydrocarbon oil, liquid paraffin, ozokerite, squalane, squalene, pristane, paraffin, isoparaffin, petrolatum and the like can be used, and sterols can also be used.

[0018] Further, as silicone oils, chain silicones such as dimethylpolysiloxane, methylphenol polysiloxane and methylhydropolysiloxane, cyclic silicones such as decamethylcyclopentasiloxane and dodecamethylcyclohexasiloxane, amino-modified Use silicone oil, polyether-modified silicone oil, carboxy-modified silicone oil, alkyl-modified silicone oil, ammonium salt-modified silicone oil, fluorine-modified silicone oil, etc. Is also possible.

[0019] By containing hydrogenated polyisobutene as the oil phase component, it is possible to easily control the particle diameter while improving the strength of the oil-based particles, and to further improve the usability of the product. . A suitable content of hydrogenated polyisobutene is 0.1 to 40% by mass with respect to the total mass of the oily particles, that is, the oil phase component. Further, the mass ratio of hydrogenated polyisobutene to dextrin fatty acid ester (hydrogenated polyisobutene: dextrin fatty acid ester) is preferably 1: 2-4: 1.

[0020] In addition, a film of a specific solid oil is formed on the outer side of the oily particles by including in the oily particles "solid oil having a freezing point of 55 ° C or higher" (hereinafter also referred to as "specific solid oil"). Thus, it becomes possible to suppress adhesion between oily particles. Further, it is particularly preferable that the solidification point of the specific solid oil is 60 ° C or higher.

[0021] Specific solid oils satisfying these conditions include, for example, hydrogenated jojoba oil (freezing point: 68 ° C), glyceryl behenate (freezing point: 66 ° C), behenyl alcohol (freezing point: 68). ° C), stearyl alcohol (freezing point: 58 ° C), solid paraffin (freezing point: 59—91 ° C), microcrystalline wax (freezing point: 80 ° C), ceresin (freezing point: 68—75 ° C), beeswax (Freezing point: 64 ° C), polyethylene wax (freezing point: 80 ° C), silicon wax (freezing point: 60 ° C), batyl alcohol (freezing point: 70 ° C), carnauba wax (freezing point: 83 ° C), beeswax (freezing point) : 64 ° C), Candelillaro (freezing point: 71 ° C), Jojobaro (freezing point: 55 ° C), Owl (freezing point: 55 ° C), hardened castor oil (freezing point: 84 ° C), hardened oil (freezing point: 5 5-60 ° C), hydrogenated palm oil (freezing point: 65 ° C), hydrogenated coconut oil (freezing point: 70 ° C.), 12-hydroxystearic acid (freezing point: 70 ° C.), and the like, particularly behenyl alcohol.

[0022] The content of the specific solid oil in the oily particles is preferably about 5 to 25% by mass, particularly preferably 8%, based on the total mass of the oily particles that can be freely selected as necessary. About 16% by mass. In addition, as described above, when hydrogenated polyisobutene is included, the mass ratio of hydrogenated polyisobutene, dextrin fatty acid ester and specific solid oil (hydrogenated polyisobutene: dextrin fatty acid ester: specific solid oil) is 1: 2: 1: 1 1: 2: 3 is preferred. If the specified solid oil content is less than this range, the stickiness will be severe. The oily particles tend to agglomerate and deteriorate in usability. On the other hand, if there is more specific solid oil than the above range, a crisp feel will be evident and the skin contact will tend to deteriorate. If the amount of polybutene is less than the above range, the oil component is less likely to harden into a spherical shape, and it is recognized that it is difficult to prepare the desired oily particles. Conversely, if there is more polybutene than this range, stickiness will become worse, oily particles will aggregate, and the usability will tend to deteriorate. When there is more dextrin fatty acid ester than the said range, the tendency for oil to become hard to harden spherical form and to prepare the desired oil-based particle | grains will be recognized. On the other hand, if there is more polybutene than the above range, the stickiness becomes worse, the oily particles are aggregated, and the usability tends to deteriorate.

[0023] The most preferable mass ratio of the above-mentioned hydrogenated polyisobutene, dextrin fatty acid ester and specific solid oil is about hydrogenated polyisobutene: dextrin fatty acid ester: specific solid oil = 1: 2: 2.

[0024] Furthermore, it is possible to alleviate the aggregation of the oily particles by adhering a hydrophilic powder having an average particle size of 0.02 to 80 μm to the surface of the oily particles. When the average particle size is less than 0, it tends to be difficult to prevent aggregation of oily particles. When the average particle size exceeds 80 m, the oily particles tend to have a rough feeling of use. Examples of the hydrophilic powder include corn starch, silica powder, titanium oxide powder, zinc oxide powder, iron oxide powder, magnesium oxide powder, barium sulfate powder, aluminum hydroxide powder, alumina, calcium carbonate powder, calcium phosphate powder, It is possible to list boron powder, talc, my strength, pearl agent, cellulose powder, pearlescent pigment, etc., and one or more of these can be selected and used. Further, the particle shape of the hydrophilic powder is not particularly limited, and a spherical shape, a square shape, an indefinite shape, or the like can be appropriately selected and used. Further, the content of the hydrophilic powder is preferably 0.5 to 5.0% by mass with respect to the total mass of the oily particles. If this content is less than 0.5% by mass of the total mass of the oily particles, the desired effect of suppressing aggregation of the oily particles will not be sufficiently exerted, and if it exceeds 5.0% by mass, the oily particles become hard and used. There is a tendency for the feeling to be impaired.

[0025] It is also possible to contain a general oily agent or the like as an oil phase component. For example, as the oil phase component, octyl paramethoxy cinnamate, t-butyl methoxybenzoyl meta By containing an ultraviolet absorber such as styrene, an ultraviolet shielding effect can be imparted to the oily particles. Furthermore, the composition can also have an ultraviolet shielding effect by containing an ultraviolet scattering agent (powder particles having an ultraviolet scattering effect), for example, fine particle titanium oxide, fine particle zinc oxide, etc. in the oil phase component. Can be granted. The ultraviolet scattering agent is preferably contained in an oily particle as dispersed as possible, and for this reason, the average particle size of the powder particles used as the ultraviolet scattering agent is 0.2 m or less. (There is no particular limitation on the lower limit, but it is practically approximately 0.02 m or more). In addition, when the powder particles are subjected to a surface hydrophobization treatment, it is advantageous to ensure dispersibility in the oily particles. Specific methods for the surface hydrophobization treatment include the surface of powder particles, for example, silicones (methylhydrodienepolysiloxane, dimethylpolysiloxane, alkyl-modified silicone resin), dextrin fatty acid ester, higher fatty acid, Higher alcohols, fatty acid esters, metal sarcophagus, alkyl phosphate ethers, fluorine compounds, or hydrocarbons (squalane, paraffin, etc.), hydrophobic by wet methods using solvents, gas phase methods, mechanochemical methods, etc. Conversion process.

[0026] Also, vitamin A and its derivatives, vitamin D and its derivatives, vitamin E and its derivatives, oil-soluble vitamins such as vitamin K and its derivatives, oil-soluble plant extracts, oil-soluble drugs, oil-soluble fragrances Etc. can be contained in the oil phase. In addition, oil-soluble derivatives of water-soluble drugs such as vitamin C and arbutin, and hydrophobized crystal surfaces can also be contained in the oil phase. By these, it is possible to impart each medicinal effect to the oily particles, and it is possible to provide a sustained release and a stable release of the drug.

[0027] In addition, as an oil component, an oil-soluble dye (red 225, etc.), an organic pigment (orange 204, red 202, etc.), a pigment (orange 205, yellow 4, blue 1, etc.) rake (zirconium, Lakes with barium, aluminum, etc.), natural pigments (chlorophyll, β-strength rotin, etc.), yellow iron oxide, red iron oxide, black iron oxide, titanium oxide, zinc oxide and other inorganic pigment powders (hydrophobized products Oily particles can be colored by adding a pearl pigment such as titanium mica, a lame agent composed of colored plate-like rosin, and the like.

[0028] The mass of the oil-based particles with respect to the present composition, that is, the content of the oil phase component with respect to the present composition is preferably 0.01-30% by mass of the composition, and 5-15% by mass. % It is particularly preferred. When the oil phase component is less than 0.01% by mass of the composition, the amount of oily particles is so small that it is difficult to recognize the presence of the oil particles in the composition for external use. There is a tendency for the oily particles to come into contact with each other in the product, and for the particles to coalesce. The average particle size of the oily particles tends to depend on the stirring speed when the oil phase component is stirred in the aqueous phase component when the composition for external use is produced. That is, if the stirring speed is low, fine oil particles are formed, and if the stirring speed is low, huge oil particles are formed.

[0029] The specific stirring speed varies depending on the stirring device and the specific components contained in the composition, and the particle size of the oily particles to be desired also varies depending on the specific application and the like. The average particle diameter is in the range of about 0.05 to 10 mm, preferably about 0.1 to about 2 mm, and in most cases about 1 mm is most preferable.

[0030] B. Aqueous phase components

The aqueous phase prepared when producing the composition for external use can be prepared using a general aqueous solvent, specifically, water, ethanol, or the like. It is also a preferred embodiment to contain a thickener. Suitable thickeners for inclusion in the aqueous phase include carboxylic copolymers, as well as carboxylic polymers, alkyl-modified carboxybule polymers, agar, xanthan gum and the like. Examples of acrylamide copolymers include bullpyrrolidone Z 2-acrylamide-2-methylpropanesulfonic acid copolymer, dimethylacrylamide Z2-acrylamide-2-methylpropanesulfonic acid copolymer, acrylamide Z2-acrylamide.ー 2-Methylpropanesulfonic acid copolymer, mixture of poly (atomic amide) and sodium polyacrylate, sodium acrylate Z2-acrylamide 2-methylpropanesulfonic acid copolymer, ammonium polyacrylate, polyacrylamide Z Ammonium acrylate copolymer, acrylamide Z sodium acrylate copolymer and the like can be mentioned. In addition, other water-soluble components, for example, water-soluble drugs such as arbutin, ascorbyl glucoside, tranexamic acid, 4-methoxysalicylate, humectants such as glycerin, dipropylene glycol, 1,3-butylene glycol, dimorpholino Water-soluble UV absorbers such as pyridazinone, chelating agents such as sodium edetate, pH adjusters such as citrate and sodium taenoate, preservatives such as paraben and phenoxyethanol, water-soluble dyes, water-soluble fragrances , Humectants, surfactants, and the like can be included. [0031] C. Production of composition for external use

As described above, the composition for external use is preferably an oil phase component containing a component constituting oily particles heated and melted by heating the water phase component mainly composed of water. By stirring and cooling the mixture of the aqueous phase and the oil phase obtained from Kako, oily particles are formed in the aqueous phase, and various water-soluble components are added as necessary. Can be manufactured. In addition, in the above-described embodiment, when the oily particles contain a specific solid oil component and Z or an ultraviolet scattering agent, these additional components are blended in the oil phase component, and the above steps are performed. By following the above, the desired composition for external use can be produced. In addition, when a hydrophilic powder having a specific particle size is adhered to the surface of the oil phase particle, the hydrophilic powder is blended in the aqueous phase component, and the hydrophilic phase is added to the surface of the oil particle by following the above process. The composition for external use to which the conductive powder is adhered can be produced.

[0032] The mass ratio of the water phase to the oil phase at the time of granulation is a force that can be freely selected according to the density per unit volume of the planned oily particles. Oil phase = 99.99: 0.0.1-1-1 (mass ratio), preferably about 2: 1-5: 1.

[0033] The introduction of the oil phase into the aqueous phase can be preferably carried out in a stirring environment of the aqueous phase. As described above, the stirring speed is preferably adjusted so that the average particle diameter of the oily particles is about 0.05 to 10 mm, preferably about 0.1 to 2 mm, and particularly preferably about lmm. Depending on the manufacturing scale, it can be prepared by stirring with a propeller, paddle mixer, etc. at a rotational speed of about 200-1500 rpm. In addition, the introduction of the oil phase into the aqueous phase can be performed, for example, by using an injection means such as a liquid feed pump, and preferably by direct pouring from the bottom of the aqueous phase.

[0034] In particular, when the specific gravity of the aqueous phase is larger than that of the oil phase, it is preferable to introduce from the lower part of the aqueous phase. Further, for example, since the addition of the oil phase to the nozzle is a nozzle addition, the adjustment of the particle size of the oily particles formed can be facilitated.

[0035] In this manner, desired oily solid particles can be formed in the aqueous phase.

[0036] D. Composition for external use

The composition for external use is, for example, a composition that can be used as a cosmetic (including scalp and hair cosmetics) or a skin external preparation, and is used by application or the like on the skin of humans or animals. Is possible.

[0037] First, the composition for external use provides a product in the form of an emulsion in which fine oily particles are observed in the aqueous phase, that is, "emulsion in which emulsified particles are visible".

[0038] In addition, by using the oily particles in the composition for external use once produced as an element to be added in the production process of a general composition for external use, the composition for external use in more various dosage forms' forms can be obtained. Can be provided. That is, these oily particles can be applied to any type of external composition such as solution type, solubilized type, emulsion type, powder dispersion type, water-powder two-phase type, water-oil powder three-phase type, etc. Can be used.

[0039] The product form that the composition for external use can take is also arbitrary, and for example, it can be used as an external composition for facial, body or scalp hair such as lotion, milky lotion, cream, knock.

Example

[0040] Next, the present invention will be described more specifically with reference to examples. However, the present invention is not limited to this. Unless otherwise specified, the following blending amount and content unit are mass% with respect to the blending target.

[0041] [Test Example 1] Examination of hardness, stickiness, and stability

1. Preparation of test product

During the formulation, the blending amounts of dextrin palmitate and hydrogenated polyisobutene in the oil phase component were combined with the following widths, and the results were examined.

[0042] 1) Test recipe 1 Ion-exchanged water remaining

(Humectant)

Dynamite Glycerin 10

Dipropylene glycol 5

1, 3-butylene glyconole 5

(Thickener)

Canoleboxyvininole polymer 0.25 (Neutralizer)

Potassium hydroxide 0. 08

(Oil phase component)

Tetra 2-ethylhexanoic acid pentaerythritol 2

Skullan 5

Dextrin palmitate (1%, 1.5% ^ 2%) Hydrogenated polyisobutene (o%, 12L 22L 32 ^) (drug)

Tranexamic acid

(Chelating agent)

EDTA- 3Na-2H O 0. 01

(Preservative)

Paraben 0. 15

[0043] <Production method>

Put the chelating agent in ion-exchanged water heated to around 70 ° C, and add the oil component heated to 90 ° C with stirring. By cooling this mixture to 30-40 ° C

Oily particles are formed in the aqueous phase. Next, a humectant, a drug, a neutralizing agent, and a thickener were added to this, and each test product was prepared by stirring uniformly.

[0044] 2. The following test was conducted on the composition for external use based on the above test formulation 1.

[0045] 1) Hardness of oily particles: A rheometer (25 ° C, 5%) after filling only oily particles into a jar.

6φ, 3mm 'penetration).

[0046] 2) Usability (stickiness): A sticky sensory evaluation was performed when applied to the forearm of 10 panelists (A: not sticky, B: slightly sticky C: Sticky).

[0047] 3) Ease of particle breakage during application: An organoleptic evaluation was performed on the fragility of oily particles when applied to the forearm of 10 panelists. , B: Slightly difficult to break ヽ,

C: Hard to break).

[0048] 4) Particle size: The particle size of the oily particles was measured by ordinary microscopic observation.

[0049] 5) Stability: 20 ° C — Stability at each temperature up to 50 ° C was examined (one 20 ° C, one 10 ° C) We examined the results of storage at 0 ° C, room temperature (around 25 ° C), 37 ° C, and 50 ° C for 1 month. After one month, if the test sample has deteriorated even a little at each temperature, it was regarded as not stable.

[0050] 6) Others: The strength of propeller agitation (denoted as peller in Table 1) was examined.

[0051] The results are shown in Table 1. The results of the tests in the items 1) and 6) above are shown in numerical order from the top in the individual columns shown in Table 1. For example, the top of each item indicates the result of the test of item 1), and the bottom indicates the result of the test of item 6).

[0052] [Table 1] Table 1

Mytic acid de 'kiss

1% 1.5% 2%

0% 16 48 109

A A B

Λ Λ B

~ 1mm 1 2 1 2 mm

No problem No problem No problem

Slightly crushed with a pella Slightly crushed with a pella No problem

1% 19 58 128

Water A B B B

Bong A A R

Appendix 2 1 3 1 to 3 mm Force なし No problem No problem No problem No problem

2% 23 67 133

B B C B C So A A C C 1 2 1 3 1 mm T No problem No problem No problem No damage

3% 24 74 142

C C C

B B C

Λ mm 1 to, 3 1 to ^ mm

No f¾ title No f¾ title No title

Slightly crushed with no problem No problem No problem [0053] In this test, if the blending power of dextrin palmitate is 1.5% by mass or more (except when the hydrogenated polyisobutene is 0% by mass), propeller agitation (200rpm) even when the viscosity of the system is high Particle breakage due to was not observed. At the same propeller stirring speed, the blending amount of dextrin palmitate and hydrogenated polyisobutene increased, and as the viscosity increased, the particle size increased.

[0054] [Test Example 2] Examination of propeller rotational speed and particle size of oily particles

1. Preparation of test product

In the above test formulation 1, Norumichin acid dextrin 1.5 mass ^_0/0, deodorizing polyiso butene as 1 wt%, and to have a width propeller speed in Suriwan (100, 1 50, 200, 250, 300 , 350 rpm), a test sample was prepared.

[0055] 2.Result

As a result of the above test, when the propeller rotation speed was 100 and 150 rpm, the oily particles were coalesced during the carrying cooling that the oil was not sufficiently dispersed. In addition, when the rotation speed is 2 OOrpm, the particle size of oily particles is about 1 to 3mm, when 250rpm is about 11.5mm, the particle size of oily particles is 300 and 350rpm. Was less than lmm.

[0056] By this test, by adjusting the stirring speed of the oil phase and the aqueous phase in the production process

It was found that oily particles having a desired average particle diameter can be obtained.

[0057] [Test Example 3] Examination of composition for external use and comparative example using wax

1. Preparation of test product

1) Example 1

(Ingredients ^%)

Ion exchange water

(Humectant)

Dynamite Glycerin 7

Dipropylene glycol 5

1, 3—Butylene glyconore 2

(Thickener) Canoleboxyvininole polymer 0.3 (neutralizing agent)

Potassium hydroxide 0. (Surfactant)

N—stearoyl L sodium glutamate 0. (oil phase component)

Tetra-2-ethylhexyl hexapentarate slit 2 squalene 5 dextrin palmitate 2 hydrogenated polyisobutene

(Chelating agent)

EDTA- 3Na- 2H O 0. 05

2

(Preservative)

Noraben 0.15 2) Comparative Example 1

Ion exchange water

(Humectant)

Dynamite Glycerin 7 Dipropylene glycol 5 1,3-Butyleneglycol 2 (Thickener)

Canoleboxyvininole polymer 0.3 (neutralizing agent)

Potassium hydroxide 0.1 (oil phase component)

Tetra 2-ethylhexanoate pentaerythritol 2 candelilla wax. 5 Dextrin palmitate 0.1

(Chelating agent)

EDTA- 3Na- 2H O 0. 05

2

(Preservative)

Paraben 0. 15

[0059] <Manufacturing method>

In Example 1, an oily component heated to 90 ° C. was added to ion exchange water containing a chelating agent and a surfactant heated to 70 ° C. with stirring, and this mixture was mixed. Cool to 40 ° C to form oily particles in the aqueous phase. Next, a moisturizer, preservative, neutralizer and thickener were added to this and stirred (propeller stirring: 200 rpm) to produce a test product of Example 1.

[0060] In Comparative Example 1, the oily component heated to 90 ° C was added to and mixed with ion-exchanged water containing a chelating agent heated to 70 ° C, and this mixture was mixed with 30-40 Cool to ° C to form oily particles in the aqueous phase. Next, a moisturizer, preservative, neutralizer, and thickener were added to this and stirred to produce a test product of Comparative Example 1.

[0061] 2. Test methods and results

The test article was subjected to a sensory test for usability. That is, a test product was applied to the forearm of 10 female panels, and the sense of application was evaluated according to the following evaluation criteria.

[0062] 1) Evaluation items were “Nobori on the skin”, “Massage bush”, “No stickiness”, “Family fastness”, “Moistness”, “Smoothness”, “Foundation” For each of the evaluation items, “Nori”, “Skin softness”, and “Smoothness of skin”. The larger one was highly evaluated).

[0063] 2) As a result of this test, with respect to “no stickiness”, “fastness of familiarity”, “paste of foundation”, “feeling of softness of skin” and “smoothness of skin”, Example 1 No significant difference was found in the questions of Comparative Example 1 and “Nobori on the skin” (average score: 3.4), “Massage chatter” (average score: 3.5), “Moist feeling” Regarding (average score: 3.6) and “feel” (average score: 3.7), Example 1 was clearly superior to Comparative Example 1.

[0064] [Test Example 4] Examination of effects when using a specific solid oil or hydrophilic powder in the composition for external use 1. Preparation of test product

1) Example 2

Compounding ingredients ^%)

(Humectant)

Dynamite Glycerin 7

Dipropylene glycol 5

1, 3—Butylene glyconore 2

Acetylated hyaluronic acid 0.002

(Thickener)

Canoleboxyvininole polymer 0.3 Xanthan gum 0.1

(Neutralizer)

Potassium hydroxide 0.1

(Surfactant)

N—stearoyl L sodium glutamate 0.1

(Oil phase component)

Tetra 2-ethylhexanoic acid pentaerythritol 2

Squalane 4.5 dextrin palmitate 2 hydrogenated polyisobutene 1

(Chelating agent)

EDTA- 3Na- 2H O 0. 05

2

(Preservatives, etc.)

Methylparaben 0.15 Ethylparaben 0.1 Antioxidant appropriate amount Antifoam agent appropriate amount [0065] 2) Example 3

An example in which 1% by mass of behenyl alcohol was added to the oil phase component of Example 2 was referred to as Example 3.

[0066] 3) Example 4

Example 3 was obtained by adding 1% by mass of candelillaro to the oil phase component of Example 2.

[0067] 4) Example 5

Example 5 was obtained by adding 0.5% by mass of corn starch (average particle size 7-10 m) as a hydrophilic powder to the formulation of Example 2.

[0068] 5) Example 6

Example 5 was prepared by adding 0.5% by mass of spherical silica powder (average particle size 4 to 16 m) as a hydrophilic powder to the formulation of Example 2.

[0069] 6) Decoration 17

1% by weight of behenyl alcohol was added to the oil phase component of Example 2, and 0.5% by weight of corn starch (average particle size 7-10 μm) was added as a hydrophilic powder. Example 7 was used.

[0070] <Production method>

In Example 2-7, an oil component heated to 90 ° C was stirred at 250 rpm in ion-exchanged water containing a chelating agent, a surfactant, and a hydrophilic powder (optional) heated to 70 ° C. Add and mix while cooling and cool the mixture to 30-40 ° C to form oily particles in the aqueous phase. Next, a moisturizer, preservative, neutralizer, thickener, antioxidant and antifoaming agent were added to this and stirred (propeller stirring: 200 rpm) to produce a test product of Example 2-7.

[0071] 2. Test method and results

1) Particle state

The state of the particles of the test product [immediately after the test product was manufactured and when it was allowed to stand at 50 ° C for 30 days] was visually observed by one expert panel and evaluated according to the following criteria.

[0072] A: Neither agglomeration of oily particles nor turbidity of outer jewels is observed.

A: No aggregation of oily particles is observed, but some turbidity is observed in the outer jewel. ○ △: Almost no aggregation between the oily particles is observed, and the outer layer jewels are slightly turbid.

Δ: Agglomeration of oily particles to a degree that disperses neatly when shaken is slightly observed, and turbidity is slightly observed in the outer layer gel.

Δ X: Some aggregation that does not disperse easily even when shaken is observed, and some turbidity is observed in the outer jewel.

X: Oily particles aggregate and turbidity is observed in the outer layer jewel.

[0073] 2) Transparency of outer layer jewel

The outer layer jewel of the test product immediately after production was evaluated by the following criteria by visual observation with one expert panel.

[0074] ○: Transparent

Δ: Some cloudiness is observed

X: Clearly cloudy

[0075] 3) Usability (feel after application)

A test article was applied to the forearm of one professional female panel, and the sense of application was evaluated according to the following evaluation criteria.

[0076] A: It is not sticky at all, and a crisp feel is felt

〇: Not sticky at all

△: Slightly sticky

X: Pretty sticky

[0077] 4) The results of the above test are shown in Table 2 below.

[0078] [Table 2] Table 2

Examples Examples Examples Examples Examples Examples Examples

2 3 4 o 6 7 Immediately after particles ○ ○ ○ ○ ○ ○ State Aging △ X ○ ○ ○ ○ ○ Outer layer transparency ○ ○ ○ Δ Δ Δ Usability after application Δ ○ ○ ○ ○ © [0079] From this result, it is clear that by adding a specific solid oil component to the oil phase, it is possible to prevent aggregation of oily particles over time and to ensure transparency of the aqueous phase. Natsuta. It was also found that stickiness during use can be suppressed.

[0080] Further, it has been clarified that it is possible to prevent agglomeration of oily particles over time by adhering hydrophilic powder to the surface of oily particles. The cloudiness of was recognized. It was also found that combining these two methods can further improve usability (feel after application of the product).

[0081] [Test Example 5] Examination of blending of UV scattering agent in composition for external use

As Example 8, in the formulation of Example 5, the powder component was changed to corn starch (average particle size 8 / ζ πι) 0.5% by mass, and particulate titanium oxide (average particle size 0.05 m) was used. A test sample was prepared. However, this fine particulate titanium oxide was dispersed in an oil phase component to prepare a test product of Example 8 according to the production process of Example 5.

[0082] As Example 9, in the formulation of Example 5, the powder component was changed to 0.5% by mass of corn starch (average particle size 8 m) and fine particle titanium oxide (average particle size 0.05 μm). A test product containing m) was prepared. However, the corn starch was dispersed in the aqueous phase in the same manner as in Example 5, the fine particle acid titanium was dispersed in the oil phase component, and the test product of Example 9 was prepared according to the production process of Example 5. Manufactured.

[0083] With respect to these examples, the above-mentioned 1) evaluation of the state of the particles was carried out. However, over time, in Example 8, aggregation of oily particles was observed. On the other hand, in Example 9, the aggregation of oily particles was not observed over time, and the dispersibility of the fine particle titanium dioxide powder in the particles was maintained! /.

[0084] Here, the ability to describe other formulation examples of the composition for external use The deviation of these formulation examples was stable and excellent in usability as a result of the above test. The production method was in accordance with the production method of Example 1 unless otherwise specified.

[0085] [Prescription Example 1]

(Ingredients ^%)

Ion exchange water (Humectant)

Dynamite glycerin 10 Dipropylene glycol 5

1,3-Butyleneglycolanol 5 (Thickener)

Canoleboxyvininole polymer 0.2 (neutralizing agent)

Potassium hydroxide 0. (Surfactant)

N-stearoyl L sodium glutamate 0.

(Oil phase component)

(Chelating agent)

EDTA- 3Na- 2H O 0. 05

2

(Preservative)

Noraben 0.15 (drug)

Vitamin A acetate 0. Vitamin E acetate 0.

[Prescription Example 2]

,

Ion exchange water

(Humectant)

Dynamite Glycerin 7

J — Nore 5 1,3-Butyleneglycanol 2 Xylitol 3 (Thickener)

Canoleboxyvininole polymer 0.2 (neutralizing agent)

Potassium hydroxide 0. (Surfactant)

N—stearoyl L sodium glutamate 0. (oil phase component)

Tetra 2-ethylhexanoic acid pentaerythritol 2 dextrin palmitate 2 Hydrogenated polyisobutene

Dimethinorepolysiloxane 3 Decamethylcyclopentasiloxane 3

(Chelating agent)

EDTA- 3Na- 2H O 0. 05

2

(Preservative)

Norraben 0.15

(Drug)

Vitamin A palmitate 0.1 [Prescription Example 3]

,

Ion exchange water

(Humectant)

Dynamite Glycerin 10 Dipropylene glycol 5 1,3-Butyleneglycolanol 5 (Thickener) Canoleboxyvininole polymer 0.2 (neutralizing agent)

Potassium hydroxide 0. (Surfactant)

N-stearoyl L sodium glutamate 0.

(Oil phase component)

a—Olefin oligomer 5 (chelating agent)

EDTA- 3Na-2H O 0. 05

2

(Preservative)

Norraben 0.15

(Drug)

Stearyl glycyrrhetinate 0. Tranexamic acid

[Prescription Example 4] Ion-exchanged water

(Humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butyleneglycol 7 (thickener)

Canoleboxyvininole polymer 0.25 Xanthan gum 0.1 (neutralizing agent) Potassium hydroxide 0.12

(Surfactant)

N—stearoyl L sodium glutamate 0.1

(Oil phase component)

Scull Run 6. 6

Octyl methoxy cinnamate 2.4

Dextrin palmitate 2.4

Hydrogenated polyisobutene 1.2

Behe-Noranoreconoret 1.2

(Powder)

Fine particle titanium oxide powder (average particle size 0.05 m) 1.2

(Chelating agent)

EDTA- 3Na- 2H O 0. 1

2

(Preservative)

Methylparaben 0.15

Phenoxyethanol 0.2

[0089] <Production method>

Prepare an aqueous phase as ion-exchanged water containing a chelating agent and a surfactant, heated to 75 ° C. Separately, the oil phase is prepared by mixing and dispersing the powder in the oil phase components heated to 85 ° C and mixed. The oil phase is added to the water phase and cooled to 30-40 ° C. to form oil phase particles containing fine titanium oxide powder with hydrophilic powder adhered in the water phase. Next, a moisturizer, preservative, neutralizing agent, and thickener are added to this and stirred (propeller stirring: 200 rpm) to prepare the composition for external use of Formulation Example 4.

[0090] [Prescription Example 5]

(Ingredients ^%)

Ion exchange water

(Humectant)

Dynamite Glycerin 1 J: n—Nore 5

1, 3-butylene glyconole 7

(Thickener)

Dimethylacrylamide / 2-acrylamide

2-Methylpropanesulfonic acid copolymer

(Surfactant)

N-stearoyl L sodium glutamate 0.

(Oil phase component)

Skullan 4

Octyl methoxy cinnamate 4

Dextrin palmitate 2.4

Hydrogenated polyisobutene 2

Behe-Noranoreko Nore 2

(Powder)

Fine titanium oxide powder (average particle size 0.03 m) 0.8

(Chelating agent)

EDTA- 3Na- 2H O 0.

(pH buffer)

Quenic acid 0. 01

Sodium quenate 0.09

(Preservative)

Methylparaben 0.15

Phenoxyethanol 0.2

Prepare an aqueous phase as ion-exchanged water containing a chelating agent and a surfactant, heated to 75 ° C. Separately, the oil phase is prepared by mixing and dispersing the powder in the oil phase components heated to 85 ° C and mixed. The oil phase is added to the water phase and cooled to 30-40 ° C. to form oil phase particles containing fine titanium oxide powder with hydrophilic powder adhered in the water phase. Next A moisturizer, preservative, pH buffer, and thickener are added to this and stirred (propeller stirring: 200 rpm) to prepare the composition for external use of Formulation Example 4.

[Prescription Example 6]

West

Ion exchange water

(Humectant)

Dynamite Glycerin

Dipropylene glycol 5

1,3-butylene glycol 7

(Thickener)

Dimethylacrylamide / 2-acrylamide

2-Methylpropanesulfonic acid copolymer 0.8

(Surfactant)

N—stearoyl L—sodium glutamate 0.1

(Oil phase component)

Tetra 2-ethylhexanoate pentaerythritol 1.2

Octyl methoxy cinnamate 4

Dextrin palmitate 2.4

Hydrogenated polyisobutene 1.2

Behe-Nore-no-re-no-no-re 1. 2

(Powder)

Fine particle acid titanium powder (average particle size 0.05 m) 0.8

(Chelating agent)

EDTA- 3Na- 2H O 0. 1

2

(pH buffer)

Quenic acid 0. 01

Sodium quenate 0.09

(Preservative) Methylparaben 0.15 Phenoxyethanol 0.2

Same as Prescription Example 5.

[Prescription Example 7]

,

Ion exchange water

(Humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butyleneglycol 7 (thickener)

Dimethylacrylamide / 2-acrylamide

2-Methylpropanesulfonic acid copolymer 0.8 (surfactant)

Ν—Stearoyl L sodium glutamate 0.1 (oil phase component)

Tripropylene glycol dipivalate 1.2 Octyl methoxykelate 4 Dextrin palmitate 2.4 Hydrogenated polyisobutene 1.2 Candelilla wax 1.2

(Powder)

Fine titanium oxide powder (average particle size 0.03 m) 0.8 (chelating agent)

EDTA- 3Na- 2H O 0. 1

2

(pH buffer)

Quenic acid 0. 01 Sodium quenate 0.09

(Preservative)

Methylparaben 0.15 Phenoxyethanol 0.2 <Production method>

Same as Prescription Example 5.

[Prescription Example 8]

,

Ion exchange water

(Humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butyleneglycol 7 (thickener)

Canoleboxyvininole polymer 0.1 Dimethylacrylamide / 2-acrylamide

2-Methylpropanesulfonic acid copolymer 0.5 (neutralizing agent)

Potassium hydroxide 0. 05 (surfactant)

Ν—Stearoyl L sodium glutamate 0.

(Oil phase component)

Tripropylene glycol dipivalate 1.2 Octyl methoxy cinnamate 4 Dextrin palmitate 2.4 Hydrogenated polyisobutene 1.2 Bhe-norenoreco-nore 1.2

(Powder) Fine zinc oxide powder (average particle size 0.05 m) 0.8

(Chelating agent)

EDTA- 3Na- 2H O 0.

(pH buffer)

Quenic acid 0. 01

Sodium quenate 0.09

(Preservative)

Methylparaben 0.15

Phenoxyethanol 0.2

[0095] <Production method>

Prepare an aqueous phase as ion-exchanged water containing a chelating agent and a surfactant, heated to 75 ° C. Separately, the oil phase is prepared by mixing and dispersing the powder in the oil phase components heated to 85 ° C and mixed. The oil phase is added to the water phase and cooled to 30-40 ° C. to form oil phase particles containing fine titanium oxide powder with hydrophilic powder adhered in the water phase. Next, a moisturizing agent, preservative, pH buffering agent, neutralizing agent, and thickener are added to this and stirred (propeller stirring: 200 rpm) to produce the composition for external use of Formulation Example 8.

[0096] [Prescription Example 9] Ion-exchanged water

(Humectant)

Dynamite Glycerin

Dipropylene glycol 5

1, 3-butylene glyconole 7

(Thickener)

Agar 35

(Surfactant)

N-stearoyl L sodium glutamate 0.

(Oil phase component) Squalane 4 octyl methoxy cinnamate 4 dextrin palmitate 2.4 behe-no-reno-re

(Powder)

Fine titanium oxide powder (average particle size 0.02 m) 0.8 (chelating agent)

EDTA- 3Na- 2H O 0. 1

2

(pH buffer)

Quenic acid 0.01 Sodium citrate 0.09

(Preservative)

Methylparaben 0.15 Phenoxyethanol 0.2

Same as Prescription Example 5.

[Prescription Example 10]

Ion exchange water

(Humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butyleneglycol 7 (thickener)

Canoleboxyvininole polymer 0.25 (neutralizing agent)

Potassium hydroxide 0.12 (surfactant) N—stearoyl L sodium glutamate 0.1

(Oil phase component)

Scran 3.3

Tetra 2-ethylhexanoate pentaerythritol 1.2

Dextrin palmitate 1.2

Hydrogenated polyisobutene 0.6

(Lame agent)

A bite raflakes R200 * 0.5

(Hydrophilic powder)

Corn starch (average particle size 8 ^ m) 0.5

(Chelating agent)

EDTA- 3Na- 2H O 0. 01

2

(Preservative)

Methylparaben 0.15

Phenoxyethanol 0.2

[0098] *: Polyethylene terephthalate-polymethylmetatalylate laminated film endowing lame agent with an average particle size of 200 μm

[0099] <Manufacturing method>

Prepare an aqueous phase in which hydrophilic powder is mixed and dispersed in ion-exchanged water containing a chelating agent and a surfactant heated to 75 ° C. Separately, prepare an oil phase in which the lame agent is mixed and dispersed in the oil phase component heated to 85 ° C and mixed. The oil phase is added to the aqueous phase and cooled to 30-40 ° C to form lamellar-containing oil phase particles with hydrophilic powder adhered in the aqueous phase. Next, a moisturizer, preservative, neutralizing agent, and thickener are added to this and stirred (propeller stirring: 200 rpm) to produce the composition for external use of Formulation Example 10.

[0100] [Prescription Example 11]

(Ingredients ^%)

Ion exchange water

(Humectant) Dynamite Glycerin

Dipropylene glycol 5

1,3-Butyleneglycanol 7 (Thickener)

Canoleboxyvininole polymer 0.25 (neutralizing agent)

Potassium hydroxide 0.12 (surfactant)

N-stearoyl L sodium glutamate 0.

(Oil phase component)

Squalane 3.3 Tetra-2-ethylhexyl hexapentarate slit 1.2 Dextrin palmitate 1.2 Hydrogenated polyisobutene 0.6 (lamé)

Taiga Raffle Flake R200 0.5 (hydrophilic powder)

Spherical silica powder (average particle size 5 μm) 0.5 (chelating agent)

EDTA- 3Na- 2H O 0. 01

2

(Preservative)

Methylparaben 0.15 Phenoxyethanol 0.2 <Production method>

Follow Prescription Example 10.

[Prescription Example 12]

,

Ion exchange water (Humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butylene glycol 7 (thickener)

Canoleboxyvininole polymer 0.25 (neutralizing agent)

Potassium hydroxide 0.12 (surfactant)

N—stearoyl-L sodium glutamate 0.

(Oil phase component)

Taiga Raffle Flake R200 0.5 (hydrophilic powder)

Spherical silica powder (average particle size 5 μm) 0.5 Corn starch (average particle size 8 μm) 0.5 (chelating agent)

EDTA- 3Na-2H O 0. 01

2

(Preservative)

Methylparaben 0.15 Phenoxyethanol 0.2 <Production method>

Follow Prescription Example 10.

[Prescription Example 13] West

Ion exchange water

(Humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butyleneglycol 7 (thickener)

Canoleboxyvininole polymer 0.25 (neutralizing agent)

Potassium hydroxide 0.12 (surfactant)

N-stearoyl L sodium glutamate 0.

(Oil phase component)

Squalane 3.3 Tetra-2-ethylhexyl hexanoate pentaerythritol 1.2 Dextrin palmitate 1.2 Hydrogenated polyisobutene 0. 6 Behe-Noranoreco Monore 0.6.

(Lame agent)

Tait Raffle R200 0.5 (chelating agent)

EDTA- 3Na- 2H O 0. 01

2

(Preservative)

Methylparaben 0.15 Phenoxyethanol 0.2 <Production method>

Follow Prescription Example 10.

[Prescription Example 14] West

Ion exchange water

(Humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butyleneglycol 7 (thickener)

Canoleboxyvininole polymer 0.25 (neutralizing agent)

Potassium hydroxide 0.12 (surfactant)

N—stearoyl L sodium glutamate 0.2 (oil phase component)

(Lame agent)

Tait Raffle R200 0.5 (chelating agent)

EDTA- 3Na- 2H O 0. 01

2

(Preservative)

Methylparaben 0.15 Phenoxyethanol 0.2 <Production method>

Follow Prescription Example 10.

[Prescription Example 15] West

Ion exchange water remaining amount (humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butyleneglycol 7 (thickener)

Canoleboxyvininole polymer 0.25

(Neutralizer)

Potassium hydroxide 0.12

(Oil phase component)

(Lame agent)

Tait Raffle R200 0.5 (chelating agent)

EDTA- 3Na- 2H O 0. 01

2

(Preservative)

Methylparaben 0.15 Phenoxyethanol 0.2 <Production method>

Follow Prescription Example 10.

[Prescription Example 16] Remaining amount of ion-exchanged water (Humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butyleneglycol 7 (thickener)

Canoleboxyvininole polymer 0.25 (neutralizing agent)

Potassium hydroxide 0.12 (surfactant)

N—stearoyl L sodium glutamate 0. (oil phase component)

Squalene 3.3 Tetra-2-ethylhexyl hexapentarate slit 1.2 Dextrin palmitate 1.2 Hydrogenated polyisobutene 0.6 Candelilla wax 0.6 (lamé)

A bite raflake R200

(Chelating agent)

EDTA- 3Na- 2H O 0. 01

2

(Preservative)

Methylparaben 0.15 Phenoxyethanol 0.2 <Production method>

Follow Prescription Example 10.

[Prescription Example 17]

,

Ion exchange water (Humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butyleneglycol 7 (thickener)

Canoleboxyvininole polymer 0.25 (neutralizing agent)

Potassium hydroxide 0.12 (surfactant)

N-stearoyl L sodium glutamate 0.

(Oil phase component)

A bite raflake R200

(Hydrophilic powder)

Barium sulfate powder (average particle size 6 μm) 0.5 (chelating agent)

EDTA- 3Na- 2H O 0. 01

2

(Preservative)

Methylparaben 0.15 Phenoxyethanol 0.2 <Production method>

Follow Prescription Example 10.

[Prescription Example 18] West

Ion exchange water remaining amount (humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butyleneglycol 7 (thickener)

Canoleboxyvininole polymer 0.25 (neutralizing agent)

Potassium hydroxide 0.12 (surfactant)

N—stearoyl L sodium glutamate

(Oil phase component)

Squalane 3.3 Tetra-2-ethylhexyl hexapentarate slit 1.2 Dextrin palmitate 0.6 Hydrogenated polyisobutene 0.6 Candelilla wax 0.6 (Lame)

A bite raflake R200

(Hydrophilic powder)

Spherical cellulose powder (average particle size 5 μm) 0.5 (chelating agent)

EDTA- 3Na- 2H O 0. 01

2

(Preservative)

Methylparaben 0.15 Phenoxyethanol 0.2

<Manufacturing method> Follow Prescription Example 10.

[Prescription Example 19]

,

Ion exchange water

(Humectant)

Dynamite Glycerin

Dipropylene glycol 5

1, 3-butylene glyconole 7

(Thickener)

Canoleboxyvininole polymer 0.25

(Neutralizer)

Potassium hydroxide 0.12 (surfactant)

Ν—Stearoyl-L sodium glutamate 0. (oil phase component)

Squalane 3.3 Tetra-2-ethylhexyl hexapentarate slit 1.2 Dextrin palmitate 0.6 Hydrogenated polyisobutene 0.6 Candelilla wax 1.2 (Lame)

A bite raflake R200

(Hydrophilic powder)

Tanorek (average particle size 5 m) 0.5 (chelating agent)

EDTA- 3Na- 2H O 0. 01

2

(Preservative)

Methylparaben 0.15 Phenoxyethanol 0.2 <Production method>

Follow Prescription Example 10.

[Prescription Example 20]

,

Ion exchange water

(Humectant)

Dynamite Glycerin

Dipropylene glycol 5 1,3-butyleneglycol 7 (thickener)

Canoleboxyvininole polymer 0.25 (neutralizing agent)

Potassium hydroxide 0.12 (surfactant)

Ν—Stearoyl L sodium glutamate 0.

(Oil phase component)

Squalene 3.3 Tetra-2-ethylhexyl hexapentarate slit 1.2 Dextrin palmitate 0.6 Hydrogenated polyisobutene 0.6 Candelilla wax 1.2 (lamé)

A bite raflake R200

(Hydrophilic powder)

Boron nitride powder (average particle size 4. 0.5 (chelating agent)

EDTA- 3Na- 2H O 0. 01 (Preservative)

Methylparaben 0.15

Phenoxyethanol 0.2

Follow Prescription Example 10.

Industrial applicability

INDUSTRIAL APPLICABILITY According to the present invention, an oily particle-dispersed external composition having excellent stability and usability is provided.

Claims

The scope of the claims

[I] An external composition in which oily particles containing a dextrin fatty acid ester and a liquid oil satisfying the following conditions are dispersed in an aqueous phase.

2) The average particle size force of oily particles is 0.05-10mm.

[2] The composition for external use according to claim 1, which is dextrin fatty acid ester-powered dextrin palmitate.

[3] The content of dextrin fatty acid ester with respect to the total mass of oil-based particles is 10-25 mass

The composition for external use according to claim 1 or 2, wherein the composition is%.

[4] 0.1-40% by mass of hydrogenated polyisobutene with respect to the total mass of oily particles

The composition for external use according to any one of claims 1 to 3.

[5] The composition for external use according to claim 4, wherein the mass ratio of hydrogenated polyisobutene to dextrin fatty acid ester (hydrogenated polyisobutene: dextrin fatty acid ester) is 1: 2—4: 1.

[6] The composition for external use according to any one of claims 1 to 5, wherein the solid oil having a freezing point of 55 ° C or higher is contained in an amount of 5 to 25% by mass based on the total mass of the oily particles.

7. The composition for external use according to claim 6, wherein the solid oil is behenyl alcohol.

[8] Mass ratio of hydrogenated polyisobutene, dextrin fatty acid ester and solid oil with a freezing point of 55 ° C or higher (hydrogenated polyisobutene: dextrin fatty acid ester: freezing point 55

The composition for external use according to any one of claims 4 to 8, wherein the solid oil component (° C or higher) is 1: 2: 1—1: 2: 3.

[9] The composition for external use according to any one of claims 1 to 8, wherein the oily particles have an average particle size force of 0.1 to 2 mm.

[10] The composition for external use according to any one of [1] to [9], wherein the mass of the oily particles relative to the whole composition is 0.01 to 30% by mass of the composition.

[II] The mixture of an aqueous phase and an oil phase obtained by adding an oil phase to an aqueous phase is cooled after stirring to form oily particles in the aqueous phase. Crab external use group Adult.

[12] The hydrophilic powder having an average particle diameter of 0.02 to 80 m The composition for external use according to any one of claims 1 to 11, which adheres to the surface of oily particles.

[13] The hydrophilic powder is corn starch, silica powder, titanium oxide, zinc oxide powder, iron oxide powder, magnesium oxide powder, barium sulfate powder, aluminum hydroxide powder, alumina powder, calcium carbonate powder, calcium phosphate powder, chip. 13. The composition for external use according to claim 12, wherein the composition is one or more selected from boron halide powder, talc, my strength, pearl agent, cellulose powder, and pearlescent pigment.

[14] A mixture of an aqueous phase and an oil phase obtained by adding an oil phase to an aqueous phase in which the hydrophilic powder is dispersed is cooled after stirring, so that the hydrophilic powder is on the surface in the aqueous phase. 14. The composition for external use according to claim 12 or 13, wherein the adhered oily particles are formed.

15. The composition for external use according to any one of claims 1 to 14, wherein an ultraviolet scattering agent is dispersed in the oily particles.