JP2011231026A - Sucrose fatty acid ester-treated powder and cosmetic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide powder capable of heightening feeling, or adhesiveness and affinity to a skin, and applicable to various emulsion systems of O/W, W/O or the like, and to provide cosmetics having heightened moist touch or cosmetic effect durability, and various emulsion-based cosmetics of O/W, W/O or the like.SOLUTION: Powder and sucrose fatty acid ester added into a solvent and heated and dissolved are mixed uniformly, and then heated, dried and crushed, to thereby obtain sucrose fatty acid ester-treated powder produced by coating the sucrose fatty acid ester on the powder surface. Thereafter, the treated powder is blended into cosmetics.

Description

  The present invention relates to a sucrose fatty acid ester-treated powder having a powder surface coated with a sucrose fatty acid ester derived from a natural plant, and a cosmetic containing the treated powder.

  Conventionally, in order to impart water resistance to cosmetics and prevent cosmetic collapse, it has been practiced to use hydrophobized powder as a powder component blended in cosmetics. However, although the cosmetic containing this hydrophobized powder is excellent in water resistance, it inhibits the adhesiveness of the cosmetic to the skin due to secretions such as sweat and sebum, resulting in breakup of the makeup. There was a problem of end.

  In order to solve this, Patent Document 1 proposes a technique of blending a natural plant-derived sucrose fatty acid ester compound into cosmetics. According to the cosmetics described in this document, by incorporating lipophilic (preferably HLB is 2 or less) sucrose fatty acid esters, the adhesion of the cosmetics to the skin is inhibited by secretions such as sweat and sebum. It is difficult to obtain a cosmetic with excellent water resistance and durability.

  However, since the technique proposed in Patent Document 1 is not a technique for imparting properties due to the sucrose fatty acid ester to the powder itself, as a means for enhancing the functionality of cosmetics, and in various forms. There remains a problem with application to cosmetics.

JP-A-8-81331

  The present invention has been made in view of the above-described problems, and can improve the feel, adhesion to the skin and affinity, and adjust the HLB of the sucrose fatty acid ester used for the coating treatment. Provides sucrose fatty acid ester-treated powders that can be applied to various emulsion systems such as O / W and W / O. In addition, cosmetics with a moist feeling and enhanced cosmetic effect, and O / The object is to provide various emulsion cosmetics such as W and W / O.

  As a result of intensive studies to achieve the above object, the inventors of the present invention uniformly mixed the powder and the sucrose fatty acid ester added to the solvent and dissolved by heating, followed by drying by heating and pulverization. It has a good feel, improved adhesion and affinity to the skin, and O / W (oil-in-water type) and W / O (water-in-oil type) by adjusting the HLB of the sucrose fatty acid ester used for coating treatment It was found that processed powders applicable to various emulsion systems such as And when this treated powder is blended into cosmetics, cosmetics having excellent touch, skin adhesion / affinity, uniformity of cosmetic film, and improvement effect on makeup, O / W and W / O, etc. It was found that various emulsion cosmetics were obtained.

In short, the sucrose fatty acid ester-treated powder according to the first invention is characterized in that the powder surface is coated with sucrose fatty acid ester.
Further, the cosmetic according to the second invention is characterized by comprising the sucrose fatty acid ester-treated powder of the first invention.

According to the first invention, since the surface of the powder is coated with the sucrose fatty acid ester, it is possible to enhance the feel and the adhesion / affinity to the skin. The sucrose fatty acid ester used for the coating treatment is an ester to which one or more fatty acids (typically C _{1 to} C ₂₂ fatty acids) are added among the eight hydroxyl groups of sucrose, and the HLB value is 1 to 16. A range of products is commercially available. By adjusting the HLB of this sucrose fatty acid ester, it is possible to impart properties applicable to various emulsion cosmetics such as makeup cosmetics, O / W and W / O.
In addition, according to the second invention, by blending this sucrose fatty acid ester-treated powder in cosmetics, it is excellent in touch, adhesion to skin, affinity, uniformity of makeup film, and improvement effect on makeup. Cosmetics and various emulsion cosmetics such as O / W and W / O can be obtained.

  Next, specific embodiments of the sucrose fatty acid ester-treated powder and cosmetic according to the present invention will be described.

  The sucrose fatty acid ester-treated powder of the present invention is a powder obtained by directly coating a powder surface with a sucrose fatty acid ester. Here, a conventionally known powder can be used for the surface-treated powder used in the present invention, and its shape (spherical, rod-like, needle-like, plate-like, indeterminate shape, scale-like, spindle-like, etc.) ), Particle size (such as fumes, fine particles, pigment grades), and particle structure (porous, non-porous, etc.). For example, inorganic powder, organic powder, surfactant metal salt powder, colored pigment, pearl pigment, metal powder pigment and the like can be used.

  Specifically, as the inorganic powder, titanium oxide, zirconium oxide, zinc oxide, cerium oxide, magnesium oxide, barium sulfate, calcium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, talc, mica, kaolin, sericite, Muscovite, synthetic mica, phlogopite, saucite, biotite, lithia mica, silicic acid, anhydrous silicic acid, aluminum silicate, magnesium silicate, magnesium aluminum silicate, calcium silicate, barium silicate, strontium silicate, Metal tungstate, hydroxyapatite, vermiculite, hydrite, bentonite, montmorillonite, hectorite, zeolite, ceramic powder, dicalcium phosphate, alumina, aluminum hydroxide, boron nitride, boron nitride, silica, etc. It is below.

  Organic powders include polyamide powder, polyester powder, polyethylene powder, polypropylene powder, silicone resin powder, silicone elastomer powder, polystyrene powder, polyurethane powder, benzoguanamine powder, polymethylbenzoguanamine powder, polytetrafluoroethylene powder, poly Methyl methacrylate powder, cellulose, silk powder, nylon powder, 12 nylon, 6 nylon, acrylic powder, acrylic elastomer, styrene / acrylic acid copolymer, divinylbenzene / styrene copolymer, vinyl resin, urea resin, phenol resin, fluorine Resin, silicon resin, acrylic resin, melamine resin, epoxy resin, polycarbonate resin, microcrystalline fiber powder, den Down powder, and lauroyl lysine.

  In addition, as surfactant metal salt powder (metal soap), zinc stearate, aluminum stearate, calcium stearate, magnesium stearate, zinc myristate, magnesium myristate, zinc cetyl phosphate, calcium cetyl phosphate, sodium cetyl phosphate Etc.

  In addition, as colored pigments, inorganic red pigments such as iron oxide, iron hydroxide and iron titanate, inorganic brown pigments such as γ-iron oxide, inorganic yellow pigments such as yellow iron oxide and ocher, black iron oxide, carbon Inorganic black pigments such as black, inorganic purple pigments such as manganese violet and cobalt violet, inorganic green pigments such as chromium hydroxide, chromium oxide, cobalt oxide and cobalt titanate, inorganic blue pigments such as bitumen and ultramarine blue, fine particle titanium oxide , Fine particle powders such as fine particle cerium oxide and fine particle zinc oxide, those obtained by lacquering tar dyes, those obtained by lacquering natural dyes, and synthetic resin powders obtained by combining these powders.

  Examples of the pearl pigment include titanium oxide-coated mica, titanium oxide-coated mica, bismuth oxychloride, titanium oxide-coated bismuth oxychloride, titanium oxide-coated talc, fish scale foil, and titanium oxide-coated colored mica.

  Examples of the metal powder pigment include powders selected from aluminum powder, copper powder, stainless steel powder, and the like.

  Further, as tar pigments, Red No. 3, Red No. 104, Red No. 106, Red No. 201, Red No. 202, Red No. 204, Red No. 205, Red No. 220, Red No. 226, Red No. 227, Red No. 228 , Red 230, red 401, red 505, yellow 4, yellow 5, yellow 202, yellow 203, yellow 204, yellow 401, blue 1, blue 2, blue 201, blue 404, Green No. 3, Green No. 201, Green No. 204, Green No. 205, Orange No. 201, Orange No. 203, Orange No. 204, Orange No. 206, Orange No. 207, etc .; , Pigments selected from calsamine, bradylin, crocin and the like.

  These powders may be processed alone or may form a mixture and be processed together. Moreover, it is also possible to process what adjusted the color of the mixture to skin color etc. Furthermore, by using an ultraviolet scattering component such as fine particle titanium oxide and fine particle zinc oxide, a treated powder having an ultraviolet ray protection function can be obtained.

As the sucrose fatty acid ester used in the present invention, an ester to which one or more fatty acids (typically C _{1 to} C ₂₂ fatty acids) of the eight hydroxyl groups of sucrose are added may be used. Moreover, as long as it is contained in said range, it is also possible to use 1 type individually or in combination of 2 or more types. By adjusting the HLB of the sucrose fatty acid ester used for the coating treatment, it is possible to impart high oleophilicity and impart water repellency or impart properties compatible with various emulsion systems such as O / W and W / O. Specifically, it is preferable to use a sucrose fatty acid ester having an HLB of 2 or less when the surface of the treated powder is made highly lipophilic and water-repellent. In addition, when it is desired that the treated powder surface has a property compatible with the O / W emulsion system, it is preferable to use a sucrose fatty acid ester having an HLB of 1 to 10, which has a property compatible with the W / O emulsion system. It is preferable to use a sucrose fatty acid ester having an HLB of 10 or more.

As a method of coating the powder surface with sucrose fatty acid ester, there are the following methods.
First, a predetermined amount of sucrose fatty acid ester to be coated on the powder surface is added to an appropriate solvent so as to have a concentration of about 1 to 20% by mass, and heated and dissolved at 60 to 70 ° C. The treating agent solution is gradually added to a mixer (Henschel mixer or the like) in which the powder is previously stirred, and then sufficiently stirred until the treating agent solution is evenly blended. Next, the inside of the mixer tank is heated and depressurized while stirring to remove the solvent, heat treatment is performed, and then pulverized (hammer mill or the like) to obtain the desired sucrose fatty acid ester-coated powder. The solvent used here is preferably a polar organic solvent capable of dissolving sucrose fatty acid esters such as ethyl alcohol and isopropyl alcohol.

  Here, the surface treatment amount of the sucrose fatty acid ester powder is preferably 5% by mass or less, more preferably 0.1 to 4% by mass, although it depends on the particle diameter of the powder to be surface-treated. It is. When the coating amount of sucrose fatty acid ester is less than 0.1% by mass, the effect of improving the feel, adhesion to skin and affinity due to sucrose fatty acid ester may not be sufficiently obtained. Exceeding the mass% is not preferable because it gives an unpleasant feeling of use such as twisting or stickiness.

  In the present invention, the powder coated with the sucrose fatty acid ester may be further subjected to various surface treatments, for example, conventionally known surface treatments. Examples of this surface treatment include fluorine compound treatment (perfluoroalkyl phosphate treatment, perfluoroalkylsilane treatment, perfluoropolyether treatment, fluorosilicone treatment, fluorinated silicone resin treatment, etc.), silicone treatment (methyl hydrogen). Polysiloxane treatment, dimethylpolysiloxane treatment, vapor phase tetramethyltetrahydrogencyclotetrasiloxane treatment, etc.) Silicone resin treatment (trimethylsiloxysilicic acid treatment, etc.), pendant treatment (addition of alkyl chain etc. after vapor phase silicone treatment) Silane coupling agent treatment, titanium coupling agent treatment, aluminum coupling agent treatment, silane treatment (alkylated silane, alkylated silazane treatment, etc.), oil agent treatment, N-acylated lysine treatment, Luric acid treatment, metal soap treatment (stearate or myristate treatment, etc.), acrylic resin treatment, natural plant-derived surfactant treatment, jojoba oil treatment, hydrogenated jojoba oil treatment, jojoba ester treatment, inorganic compound treatment, plasma Treatment, mechanochemical treatment and the like. It is also possible to use a combination of these processes.

  In the cosmetics of the present invention, oil agents, surfactants, pigments, preservatives, fragrances, moisturizers, salts, solvents, resins, antioxidants, chelating agents, neutralizing agents, pH, which are usually used in cosmetics. Various components such as a regulator, an insect repellent, and a physiologically active component can be used as long as the object of the present invention is not impaired.

  Examples of the oils include avocado oil, linseed oil, almond oil, ibotarou, eno oil, olive oil, cacao butter, kapok wax, kayak oil, carnauba wax, liver oil, candelilla wax, beef tallow, beef leg fat, beef bone fat, cured Beef tallow, Kyonin oil, Whale wax, Hardened oil, Wheat germ oil, Sesame oil, Rice germ oil, Rice bran oil, Sugar cane wax, Sasanqua oil, Saflower oil, Shea butter, Singa oil, Cinnamon oil, Jojoba wax, Shellac wax, Turtle oil , Soybean oil, tea seed oil, camellia oil, evening primrose oil, corn oil, lard, rapeseed oil, Japanese killi oil, nukarou, germ oil, horse fat, persic oil, palm oil, palm kernel oil, castor oil, hydrogenated castor Oil, castor oil fatty acid methyl ester, sunflower oil, grape oil, bayberry wax, jojoba oil, macadamia nut oil, beeswax, mink , Cottonseed oil, cotton wax, owl, owl kernel oil, montan wax, coconut oil, hydrogenated coconut oil, tricoconut oil fatty acid glyceride, sheep oil, peanut oil, lanolin, liquid lanolin, reduced lanolin, lanolin alcohol, hard lanolin, lanolin acetate, lanolin Fatty acid isopropyl, hexyl laurate, POE lanolin alcohol ether, POE lanolin alcohol acetate, lanolin fatty acid polyethylene glycol, POE hydrogenated lanolin alcohol ether, egg yolk oil, etc .; as hydrocarbon oils, ozokerite, squalane, squalene, ceresin, paraffin, paraffin wax Liquid paraffin, pristane, polyisobutylene, microcrystalline wax, petrolatum, etc .; higher fatty acids include lauric acid, myristic acid, palmitic acid, Aric acid, behenic acid, undecylenic acid, oleic acid, linoleic acid, linolenic acid, arachidonic acid, eicosapentaenoic acid (EPA), docosahexaenoic acid (DHA), isostearic acid, 12-hydroxystearic acid, etc .; Alcohol, myristyl alcohol, palmityl alcohol, stearyl alcohol, behenyl alcohol, hexadecyl alcohol, oleyl alcohol, isostearyl alcohol, hexyl decanol, octyldodecanol, cetostearyl alcohol, 2-decyltetradecinol, cholesterol, phytosterol, POE cholesterol Ether, monostearyl glycerin ether (batyl alcohol), monooleyl glyceryl ether (ceracyl alcohol) Ester oils include diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, N-alkyl glycol monoisostearate, isocetyl isostearate, isononyl isononanoate, trimethylolpropane triisostearate , Ethylene glycol di-2-ethylhexanoate, cetyl 2-ethylhexanoate, trimethylolpropane tri-2-ethylhexanoate, pentaerythritol tetra-2-ethylhexanoate, cetyl octoate, octyldodecyl gum ester, oleic acid Oleyl, octyldodecyl oleate, decyl oleate, neopentyl glycol dicaprate, triethyl citrate, 2-ethylhexyl succinate, amyl acetate, ethyl acetate, butyl acetate, Isocetyl phosphate, butyl stearate, diisopropyl sebacate, di-2-ethylhexyl sebacate, cetyl lactate, myristyl lactate, isopropyl palmitate, 2-ethylhexyl palmitate, 2-hexyldecyl palmitate, 2-heptylundecyl palmitate Cholesteryl 12-hydroxystearylate, dipentaerythritol fatty acid ester, isopropyl myristate, octyldodecyl myristate, 2-hexyldecyl myristate, myristyl myristate, hexyldecyl dimethyloctanoate, ethyl laurate, hexyl laurate, N- Lauroyl-L-glutamic acid-2-octyldodecyl ester, diisostearyl malate, etc .; As glyceride oil, acetoglyceryl, triisoocta Glyceryl acid, glyceryl triisostearate, glyceryl tri (capryl / capric acid), glyceryl triisopalmitate, glyceryl monostearate, glyceryl di-2-heptylundecanoate, glyceryl trimyristate, diglyceryl myristate Examples of the oil include dimethylpolysiloxane, biphenylsiloxane, decamethylcyclopentasiloxane, methyltrimethicone, alkyl-modified silicone, and fluorosilicone.

As the powder blended in the cosmetic of the present invention, the same powder as described above can be used. The powder is preferably subjected to the various surface treatments described above.
Examples of the cosmetic of the present invention include skin care products, hair products, antiperspirant products, makeup products, UV protection products, and perfume solvents. For example, makeup cosmetics such as foundation, white powder, eye shadow, eyeliner, eyebrow, teak, nail color, lip balm, lipstick, mascara, emulsion, cream, lotion, sunscreen agent, suntan agent, pack agent, cleansing agent , Basic cosmetics such as face wash, hair color, set agent, body powder, deodorant, hair remover, soap, bath agent, hand soap, perfume and the like. Also, the form of the product is not particularly limited, and may be liquid, emulsion, cream, solid, paste, gel, powder, multilayer, mousse, spray or the like.

  Next, examples of the sucrose fatty acid ester-treated powder and cosmetic according to the present invention will be described.

(Production Example 1)
To 1 kg of titanium oxide, 2% by mass of sucrose polystearate having an HLB of 1 was added to 250 g of isopropyl alcohol and dissolved by heating at 70 ° C. to prepare a treating agent solution. Next, this treating agent solution was gradually added to a Henschel mixer in which 1 kg of titanium oxide was stirred, and after stirring for 10 minutes or more, the inside of the Henschel mixer tank was heated under reduced pressure to remove the solvent. The treated powder from which the solvent had been removed was heat-treated at 80 ° C. to completely remove the solvent, and then pulverized with an atomizer to obtain a powder surface-treated with sucrose polystearate. Further, similarly to titanium oxide, surface-treated sericite, talc, mica, red iron oxide, yellow iron oxide, black iron oxide, fine particle titanium oxide, and fine particle zinc oxide were obtained.

(Production Example 2)
To 1 kg of titanium oxide, 2% by mass of sucrose distearate having an HLB of 7 was added to 250 g of isopropyl alcohol, and heated and dissolved at 70 ° C. to prepare a treating agent solution. Next, this treating agent solution was gradually added to a Henschel mixer in which 1 kg of titanium oxide was stirred, and after stirring for 10 minutes or more, the inside of the Henschel mixer tank was heated under reduced pressure to remove the solvent. The treated powder from which the solvent had been removed was heat-treated at 80 ° C. to completely remove the solvent, and then pulverized with an atomizer to obtain a powder surface-treated with sucrose distearate. Further, similarly to titanium oxide, surface-treated sericite, talc, mica, red iron oxide, yellow iron oxide, black iron oxide, fine particle titanium oxide, and fine particle zinc oxide were obtained.

(Production Example 3)
To 1 kg of titanium oxide, 2% by mass of sucrose monostearate having an HLB of 16 was added to 250 g of isopropyl alcohol and dissolved by heating at 70 ° C. to prepare a treating agent solution. Next, this treating agent solution was gradually added to a Henschel mixer in which 1 kg of titanium oxide was stirred, and after stirring for 10 minutes or more, the inside of the Henschel mixer tank was heated under reduced pressure to remove the solvent. The treated powder from which the solvent had been removed was heat-treated at 80 ° C. to completely remove the solvent, and then pulverized with an atomizer to obtain a powder surface-treated with sucrose monostearate. Further, similarly to titanium oxide, surface-treated sericite, talc, mica, red iron oxide, yellow iron oxide, black iron oxide, fine particle titanium oxide, and fine particle zinc oxide were obtained.

(Production Comparative Example 1)
Untreated titanium oxide, sericite, talc, mica, red iron oxide, yellow iron oxide, black iron oxide, fine particle titanium oxide, fine particle zinc oxide used in Production Examples 1, 2, and 3 were produced. did.

(Evaluation of water repellency)
Polystearic acid sucrose-treated powder obtained in Production Example 1, sucrose distearate-treated powder obtained in Production Example 2, sucrose monostearate-treated powder obtained in Production Example 3, and The untreated powder of Production Comparative Example 1 was evaluated for water repellency by measuring the contact angle of water droplets. The evaluation results are shown in Table 1.

  As can be seen from the results in Table 1, it is clear that excellent water repellency is imparted to the powder treated with sucrose polystearate having an HLB of 1 in Production Example 1. The powder treated with sucrose distearate having an HLB of 7 in Production Example 2 is lipophilic but weak in water repellency, and the powder treated with sucrose monostearate having an HLB of 16 in Production Example 3 is repellent. There was almost no water. Moreover, the thing of manufacture comparative example 1 also did not have water repellency.

Example 1
Next, using the polystearic acid sucrose-treated powder obtained in Production Example 1, a powder foundation was prepared with the following composition. The manufacturing method is as follows.
[Component A]
The treated sericite 30.0
The treated talc 22.0
The treated mica 18.0
The treated titanium oxide 8.8
The treated yellow iron oxide 3.7
The treated red iron oxide 1.2
The treated black iron oxide 0.7
Nylon powder 3.6
[Component B]
Dimethylpolysiloxane 3.0
Liquid paraffin 3.0
Isostearic acid hydrogenated castor oil 4.0
Octyldodecanol 2.0
Total 100.0
Production method:
Component A was mixed with a mixer. Next, the uniformly mixed and dissolved component B was added to the component A and further mixed. The obtained powder was pulverized with an atomizer, passed through a mesh, and then molded into a metal dish using a mold to obtain a product.

(Comparative Example 1)
A powder foundation was prepared with the formulation of Example 1 using the untreated powder of Production Comparative Example 1.

(sensory evaluation)
The powder foundation obtained in Example 1 and Comparative Example 1 was used by an evaluator, and after 1 hour, the smoothness of touch, familiarity with the skin, uniform feeling of the cosmetic film, and improvement effect on makeup lasting effect were obtained. Was evaluated. The evaluation results are shown in Table 2. Here, the evaluation criteria for each item are as follows.
◎: Good, ○: Somewhat good, △: Somewhat bad, ×: Bad

  As is apparent from the results in Table 2, the powder foundation (Example 1) using the polystearic acid sucrose-treated powder according to the present invention has a long-lasting makeup compared to Comparative Example 1 and uses it evenly on the skin. It turned out to be an excellent feeling. On the other hand, the thing of the comparative example 1 was inferior in evaluation in any item.

(Example 2)
Next, using the sucrose distearate-treated powder obtained in Production Example 2, a W / O liquid foundation was prepared with the following composition. The manufacturing method is as follows.
[Component A]
Dimethicone copolyol / decamethylcyclopenta 15.0
Siloxane solution (Note 1)
Synthetic wax 1.0
Aralkyl behenate 0.5
Trihydroxystearin 0.4
Laureth-7 0.5
Phenyltrimethicone 5.0
Isotridecyl isononanoate 5.5
Propylparaben 0.1
Silicone gel (Note 2) 3.2
[Component B]
The treated titanium oxide 10.0
The treated talc 4.0
The treated yellow iron oxide 0.8
The treated red iron oxide 0.3
The treated black iron oxide 0.1
[Component C]
Purified water balance Propylene glycol 8.0
Sodium chloride 2.0
Sodium dehydroacetate 0.3
Phenoxyethanol 0.2
Edetate disodium 0.1
Total 100.0
(Note 1) BY22-008M (Toray Dow Corning)
(Note 2) KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.)
Production method:
Component B was mixed with a mixer. On the other hand, component A was heated to 80 ° C. and mixed to be uniform. To this, component B was gradually added with stirring and gradually cooled to 50 ° C. Subsequently, component C was heated to 80 ° C. and dissolved uniformly, and then gradually cooled to 50 ° C. Component C was added to component A under stirring, and the mixture was further stirred and cooled to room temperature. The resulting solution was filled in a container to obtain a product.

(Comparative Example 2)
Using the untreated powder of Production Comparative Example 1, a W / O liquid foundation was prepared by the formulation of Example 2.

(Example 3)
Next, using the monostearic acid sucrose-treated powder obtained in Production Example 3, an O / W liquid foundation was prepared with the following composition. The manufacturing method is as follows.
[Component A]
Dimethicone copolyol / decamethylcyclopenta 15.0
Siloxane solution (Note 1)
Synthetic wax 1.0
Aralkyl behenate 0.5
Trihydroxystearin 0.4
Laureth-7 0.5
Phenyltrimethicone 5.0
Isotridecyl isononanoate 5.5
Propylparaben 0.1
Silicone gel (Note 2) 3.2
[Component B]
The treated titanium oxide 10.0
The treated talc 4.0
The treated yellow iron oxide 0.8
The treated red iron oxide 0.3
The treated black iron oxide 0.1
[Component C]
Purified water balance Propylene glycol 8.0
Sodium chloride 2.0
Sodium dehydroacetate 0.3
Phenoxyethanol 0.2
Edetate disodium 0.1
Total 100.0
(Note 1) BY22-008M (Toray Dow Corning)
(Note 2) KSG-16 (manufactured by Shin-Etsu Chemical Co., Ltd.)
Production method:
Component B was mixed with a mixer. On the other hand, Component C was heated to 80 ° C. and mixed to be uniform. To this, component B was gradually added with stirring and gradually cooled to 50 ° C. Next, component A was heated to 80 ° C. and dissolved uniformly, and then gradually cooled to 50 ° C. The component A was added to the component C under stirring, the mixture was further stirred, and the solution obtained by cooling to room temperature was filled into a container to obtain a product.

(Comparative Example 3)
Using the untreated powder of Production Comparative Example 1, an O / W liquid foundation was prepared according to the formulation of Example 3.

The liquid foundation obtained in Examples 2 and 3 and Comparative Examples 2 and 3 were evaluated for dispersibility and stability in an emulsified state, and after using the evaluator for 1 hour, the feeling of use Was evaluated. The evaluation results are shown in Table 3. Here, the evaluation criteria for each item are as follows.
◎: Good, ○: Somewhat good, △: Somewhat bad, ×: Bad

  As is apparent from the results in Table 3, the W / O liquid foundation (Example 2) using the sucrose distearate powder according to the present invention has good dispersibility with oil and is stable in an emulsified state. Was found to be excellent in use feeling such as adhesion to skin and elongation. In addition, the O / W liquid foundation (Example 3) using the sucrose monostearate powder has good dispersibility in an aqueous solution, a stable emulsified state, and further adhesion to the skin and elongation. It turned out that it becomes the thing which was excellent also in the usability. On the other hand, the comparative examples 2 and 3 were poorly evaluated in any item.

Example 4
Next, using the sucrose distearate-treated powder obtained in Production Example 2, a W / O sunscreen was prepared with the following composition. The manufacturing method is as follows.
[Component A]
Tridecyl isononanoate 3.0
Phenyltrimethicone 1.0
Dimethicone copolyol / decamethylcyclopenta 1.0
Siloxane solution Cyclopentasiloxane 30.0
PEG-10 Dimethicone 5.0
[Component B]
The treated fine particle titanium oxide 7.0
The treated fine particle zinc oxide 15.0
[Component C]
Purified water balance 1,3-butylene glycol 6.0
Sodium chloride 1.0
Phenoxyethanol 0.2
Edetate disodium 1.0
Total 100.0
Production method:
Component B was mixed with a mixer. On the other hand, component A was heated to 80 ° C. and mixed to be uniform. To this, component B was gradually added with stirring and gradually cooled to 40 ° C. Next, Component C was heated to 80 ° C. and dissolved uniformly, and then gradually cooled to 40 ° C. Component C was added to component A under stirring, and the mixture was further stirred and cooled to room temperature. The resulting solution was filled in a container to obtain a product.

(Comparative Example 4)
A W / O sunscreen was prepared with the formulation of Example 4 using the untreated powder of Production Comparative Example 1.

(Example 5)
Next, using the sucrose monostearate-treated powder obtained in Production Example 3, an O / W sunscreen was prepared with the following composition. The manufacturing method is as follows.
[Component A]
Tridecyl isononanoate 3.0
Phenyltrimethicone 1.0
Dimethicone copolyol / decamethylcyclopenta 1.0
Siloxane solution Cyclopentasiloxane 30.0
PEG-10 Dimethicone 5.0
[Component B]
The treated fine particle titanium oxide 7.0
The treated fine particle zinc oxide 15.0
[Component C]
Purified water balance 1,3-butylene glycol 6.0
Sodium chloride 1.0
Phenoxyethanol 0.2
Edetate disodium 1.0
Total 100.0
Production method:
Component B was mixed with a mixer. On the other hand, Component C was heated to 80 ° C. and mixed to be uniform. To this, component B was gradually added with stirring and gradually cooled to 40 ° C. Next, component A was heated to 80 ° C. and dissolved uniformly, and then gradually cooled to 40 ° C. The component A was added to the component C under stirring, the mixture was further stirred, and the solution obtained by cooling to room temperature was filled into a container to obtain a product.

(Comparative Example 5)
Using the untreated powder of Production Comparative Example 1, an O / W sunscreen was prepared with the formulation of Example 5.

The sunscreen obtained in Examples 4 and 5 and Comparative Examples 4 and 5 were evaluated for dispersibility and stability in an emulsified state, and after using the evaluator for 1 hour, the feeling of use Was evaluated. The evaluation results are shown in Table 4. Here, the evaluation criteria for each item are as follows.
◎: Good, ○: Somewhat good, △: Somewhat bad, ×: Bad

  As is apparent from the results in Table 4, the W / O sunscreen (Example 4) using the sucrose distearate-treated powder according to the present invention has good dispersibility with oil and is stable in the emulsified state. Was found to be excellent in use feeling such as adhesion to skin and elongation. In addition, the O / W screen (Example 5) using the sucrose monostearate powder has good dispersibility in an aqueous solution, a stable emulsified state, and further uses such as adhesion to skin and elongation. It turned out to be an excellent feeling. On the other hand, the comparative examples 4 and 5 were poorly evaluated in any item.

  By blending the sucrose fatty acid ester-treated powder of the present invention with makeup cosmetics or sunscreen cosmetics, it is possible to obtain cosmetics that have good makeup and have excellent feel such as adhesion to the skin and elongation. Can do. In addition, by adjusting the HLB of the sucrose fatty acid ester used for the coating treatment, it is possible to obtain treated powders applicable to various emulsion systems such as O / W and W / O. By blending into the composition, liquid type cosmetics with good emulsion stability in various emulsion systems can be obtained.

Claims (2)

  A powder treated with sucrose fatty acid ester, wherein the powder surface is coated with sucrose fatty acid ester.   A cosmetic comprising the sucrose fatty acid ester-treated powder according to claim 1.