JP6321957B2 - Solid powder cosmetic - Google Patents

Description

  The present invention relates to a solid powder cosmetic.

  Solid powder cosmetics are required to be easily applied to the skin and have excellent usability. For example, Patent Document 1 discloses that a powdered solid cosmetic containing an oil phase component and a powder component and containing talc having an average particle diameter of 15 μm or more as a powder component is easy to take with an applicator and easy to extend to the skin. It describes that it gives a moist feeling and is less susceptible to cracking due to impact such as dropping.

JP 2011-116855 A

  The inventor found that the general-purpose talc used in Patent Document 1 has a large particle size and is excellent in a smooth feeling after being put on the skin in addition to a smooth feeling when applied to the skin. When it is included in the composition, it is found that there is a problem that when solidified by press molding, it hardens and solidifies, and when the solid powder cosmetic is applied to the skin, the color becomes dull and the skin does not appear bright. It was.

  The present inventor uses a talc having a specific particle size and a specific particle size distribution in combination with a liquid oil agent and a specific fine particle zinc oxide at 25 ° C., so that the powder can be easily removed by using a sponge. It was found that when applied, a solid powder cosmetic with a bright finish was obtained by suppressing the yellowing of the finish.

The present invention includes the following components (A), (B) and (C):
(A) Talc with a particle size of 14 μm or less 15-80% by mass,
(B) 0.1 to 20% by mass of a liquid oil at 25 ° C.
(C) Fine particle zinc oxide having an average particle diameter of 5 to 40 nm and a specific surface area of 10 to 100 m ² / g is contained. In the total amount of component (A), the particle diameter is 8 μm or less and 67% by mass or more, and the particle diameter is 11 μm or more. The present invention relates to a solid powder cosmetic having a particle size distribution of 20% by mass or less.

  The solid powder cosmetic of the present invention is excellent in powdering properties when using a sponge, has good slippage when applied to the skin, can suppress the yellowish dullness of the finish, and can have a bright finish.

The talc of the component (A) used in the present invention has a particle size of 14 μm or less. Moreover, 3-8 micrometers is preferable, as for the average particle diameter of a component (A), 4-7 micrometers is more preferable, and 5-6.5 micrometers is more preferable.
Further, in the total amount of component (A), the particle size of 8 μm or less is 67% by mass or more, preferably 70% by mass or more, more preferably 73% by mass or more, and the particle size of 11 μm or more is 20% by mass or less, 15% by mass. % Or less is preferable, and 10% by mass or less has a more preferable particle size distribution.
Further, in the total amount of component (A), the particle diameter is 4 μm or less is preferably 32% by mass or more, and more preferably 34% by mass or more.
By using such a talc, it is excellent in the powder removal property when using a sponge, in addition to the slipperiness when applied to the skin, a smooth feeling after being put on the skin is obtained, and the finished skin becomes bright.

  In the present invention, the particle diameter is measured by an electron microscope observation and a particle size distribution measuring device by a laser diffraction / scattering method. Specifically, in the case of the laser diffraction / scattering method, the measurement unit performs measurement with a laser diffraction / scattering particle size distribution measuring instrument (for example, HELOS & RODOS manufactured by Sympatec) with a dispersion pressure of 0.1 bar.

As the talc of the component (A), a talc that has been subjected to a hydrophobic treatment can be used, and water repellency and oil repellency are sufficiently expressed, and the touch and fluidity are improved.
The hydrophobizing treatment is not limited as long as it is a treatment applied to normal cosmetic powders. Silicone treatment, fatty acid treatment, lauroyllysine treatment, lecithin treatment, N-acylamino acid treatment, metal soap treatment, fluorine Compound treatment and the like can be mentioned. Of these, silicone treatment is preferred. These processes can be performed by a normal method.

  The amount of the hydrophobization treatment varies depending on the powder, but from the viewpoint that water repellency and oil repellency are sufficiently expressed, and feel and fluidity are improved, the lower limit for the powder mass of the component (A) is: 0.05 mass% or more is preferable, 0.1 mass% or more is more preferable, and 1 mass% or more is further more preferable. Further, the upper limit is preferably 50% by mass or less, more preferably 10% by mass or less, and further preferably 6% by mass or less.

  A component (A) can contain 1 type (s) or 2 or more types. The content of the component (A) is excellent in powdering properties when using a sponge, and in addition to a slippery feeling when applied to the skin, a smooth feeling after being put on the skin is obtained, so that 15% in the total composition. % Or more, preferably 30% by mass or more, more preferably 50% by mass or more, 80% by mass or less, preferably 75% by mass or less, and more preferably 70% by mass or less. Moreover, content of a component (A) is 15-80 mass% in the whole composition, 30-75 mass% is preferable and 50-70 mass% is more preferable.

The component (B) oil used in the present invention is liquid at 25 ° C. Here, the liquid state at 25 ° C. has fluidity, and includes pastes.
Such oil agents may be those used in normal cosmetics, for example, straight or branched hydrocarbon oils such as liquid paraffin, light isoparaffin, liquid isoparaffin, squalane and squalene; vegetable oils such as jojoba oil and olive oil. Animal oil such as liquid lanolin; fatty acid ester, polycarboxylic acid ester, fatty acid polyhydric alcohol ester, hydroxy fatty acid ester, octyl methoxycinnamate, octyl paradimethylaminobenzoate, dl-α-tocopherol, dl nicotinate Ester oil such as α-tocopherol; silicone oil such as dimethylpolysiloxane, dimethylcyclopolysiloxane, methylphenylpolysiloxane, methylhydrogenpolysiloxane, higher alcohol-modified organopolysiloxane; fluoropolyether , Fluorine oils such as perfluoroalkyl ether silicone.
Of these, linear or branched hydrocarbon oils, ester oils, and silicone oils are preferred from the viewpoint of powder adhesion, adhesion to the skin, and feeling during use, and liquid isoparaffin, isotridecyl isononanoate, and paramethoxy cinnamon. Octyl acid and dimethylpolysiloxane are more preferable.

  Component (B) can be used singly or in combination of two or more, and the content is 0.1% by mass or more in the total composition from the viewpoint of powder removal, adhesion to the skin, and feeling during use. 1 mass% or more is preferable, 3 mass% or more is more preferable, 20 mass% or less is preferable, 10 mass% or less is preferable, and 8 mass% or less is more preferable. Moreover, content of a component (B) is 0.1-20 mass% in the whole composition, 1-10 mass% is preferable, and 3-8 mass% is more preferable.

  In the present invention, the mass ratios (A) / (B) of the components (A) and (B) are excellent in powdering properties when using a sponge, have good slippage when applied to the skin, and have a yellowish finish. 1 or more are preferable, 3 or more are more preferable, 7 or more are more preferable, 80 or less are preferable, 30 or less are more preferable, and 15 or less are still more preferable from the point which is suppressed and the bright finish is obtained. Moreover, 1-80 are preferable, as for the mass ratio (A) / (B) of a component (A) and (B), 3-30 are more preferable, and 7-15 are still more preferable.

The fine particle zinc oxide of the component (C) used in the present invention has an average particle diameter of 5 to 40 nm, and preferably an average particle diameter of 10 to 30 nm. Moreover, it is preferable that the particle diameter of a component (C) has 1 nm or more and 100 nm or less. Furthermore, the specific surface area of a component (C) is 10-100 m < ² > / g, and the thing of 15-60 m < ² > / g is preferable from the point which is excellent in the use feeling at the time of application | coating and application.
As the fine particle zinc oxide of the component (C), a hydrophobized one similar to the component (A) can be used.

  Component (C) can be used singly or in combination of two or more. From the standpoint of preventing makeup collapse, the content is preferably 0.01% by mass or more, more preferably 0.1% by mass or more in the total composition. Preferably, 2 mass% or more is further preferable, 20 mass% or less is preferable, 15 mass% or less is more preferable, and 10 mass% or less is still more preferable. Moreover, 0.01-20 mass% is preferable in the whole composition, as for content of a component (C), 0.1-15 mass% is more preferable, and 2-10 mass% is still more preferable.

  In the present invention, the mass ratios (A) / (C) of the components (A) and (C) are excellent in powdering properties when using a sponge, have good slippage when applied to the skin, and have a yellowish finish. 1 or more is preferable, 3 or more is more preferable, 5 or more is further preferable, and 200 or less is preferable, from the viewpoint that it is suppressed, has a bright finish, and has excellent makeup persistence even after time has elapsed after application. 100 or less is more preferable, and 24 or less is more preferable. Moreover, 1-200 are preferable, as for the mass ratio (A) / (C) of component (A) and (C), 3-100 are more preferable, and 5-24 are still more preferable.

The solid powder cosmetic of the present invention can further contain powders other than the components (A) and (C). Such powders are not limited as long as they are extender pigments and colored pigments used in ordinary cosmetics. For example, silicic acid, silicic anhydride, magnesium silicate, sericite, talc other than component (A), mica , Kaolin, Bengala, Clay, Bentonite, Mica, Titanium-coated Mica, Bengala-coated Mica Titanium, Bengala / Black Iron Oxide-Coated Mica Titanium, Titanium-Coated Mica Titanium, Titanium Oxide-Coated Borosilicate, Bismuth Oxychloride, Zirconium Oxide, Magnesium Oxide, Titanium oxide, zinc oxide other than component (C), aluminum oxide, calcium sulfate, barium sulfate, magnesium sulfate, calcium carbonate, magnesium carbonate, iron oxide, ultramarine oxide, chromium oxide, chromium hydroxide, calamine and carbon black, composites thereof Inorganic powders such as body; polyamide, polyester, Repropylene, polystyrene, polyurethane, vinyl resin, urea resin, phenol resin, fluorine resin, silicon resin, acrylic resin, melamine resin, epoxy resin, polycarbonate resin, silicone resin, divinylbenzene / styrene copolymer, silk powder, cellulose, Organic powders such as long-chain alkyl phosphate metal salts, N-mono long-chain alkyl acyl basic amino acids, and complexes thereof; and composite powders of the above inorganic powder and organic powder.
These powders can be used as they are, as in the case of the component (A), and those obtained by hydrophobizing one or more of these can also be used.

  The solid powder cosmetic of the present invention is excellent in powdering properties when using a sponge, has good slippage when applied to the skin, has a bright yellow finish, and has a bright finish. The content of is preferably 10% by mass or less, more preferably 5% by mass or less, and still more preferably 3% by mass or less in the total composition.

The solid powder cosmetic of the present invention can further contain (D) polyethylene glycol having a molecular weight of 200 to 3000, is excellent in slipping during application, and the yellowish dullness is not noticeable in the finish immediately after application. It is preferable from the viewpoint of excellent durability.
Such polyethylene glycol preferably has a molecular weight of 300 to 1000, more preferably 350 to 600.

  The component (D) polyethylene glycol can be used singly or in combination of two or more, and it is excellent in slipping during coating, and the yellowing is not noticeable in the finish immediately after coating. 0.01 mass% or more is preferable, 0.1 mass% or more is more preferable, 0.2 mass% or more is further preferable, 10 mass% or less is preferable, 5 mass% or less is more preferable, and 2 mass% is still more preferable. . In addition, the content of the component (D) is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass, and still more preferably 0.2 to 2% by mass in the entire composition.

  In the present invention, the mass proportions (A) / (D) of the components (A) and (D) are excellent in powdering properties when using a sponge, have good slippage when applied to the skin, and have a yellowish finish. 5 or more are preferable, 10 or more are more preferable, 100 or more are more preferable, 600 or less are preferable, 300 or less are more preferable, and 140 or less are still more preferable from the point which is suppressed and the bright finish is obtained. Moreover, 5-600 are preferable, as for mass ratio (A) / (D) of a component (A) and (D), 10-300 are more preferable, and 100-140 are still more preferable.

  Solid powder cosmetics of the present invention are components used in normal cosmetics in addition to the above components, such as oil components other than those described above, surfactants, preservatives, antioxidants, pigments, thickeners, pH A conditioning agent, a fragrance | flavor, a ultraviolet absorber, a moisturizer, a blood circulation promoter, a cooling agent, an antiperspirant, a disinfectant, a skin activator, etc. can be contained.

  The solid powder cosmetic of the present invention can be produced according to a usual method. For example, after all powder components including components (A) and (C) are mixed and pulverized, an oil phase component including component (B) is added and mixed, and the resulting mixture is further pulverized by a pulverizer. Thereafter, it can be produced by molding and solidifying the pulverized product. The pulverizer to be used is not limited as long as it is a pulverizer usually used for pulverization, and examples thereof include an atomizer, a hammer mill, a jet mill, and a cutter mill. For the mixing step of the oil phase, an apparatus usually used for mixing is used, and examples thereof include a Henschel mixer and a Nauter mixer.

The solid powder cosmetic of the present invention is suitable as makeup cosmetics such as foundations, face powders, blushers, and eye shadows. Among these, a foundation is preferable.
This invention discloses the following compositions further regarding embodiment mentioned above.

<1> The following components (A), (B) and (C):
(A) Talc with a particle size of 14 μm or less 15-80% by mass,
(B) 0.1 to 20% by mass of a liquid oil at 25 ° C.
(C) Fine particle zinc oxide having an average particle diameter of 5 to 40 nm and a specific surface area of 10 to 100 m ² / g is contained. In the total amount of component (A), the particle diameter is 8 μm or less and 67% by mass or more, and the particle diameter is 11 μm or more. Solid powder cosmetic having a particle size distribution of 20% or less.

<2> The talc of the component (A) is preferably an average particle size of 3 to 8 μm, more preferably 4 to 7 μm, and even more preferably 5 to 6.5 μm. .
<3> In the total amount of component (A), preferably the particle size of 8 μm or less is 70% by mass or more, more preferably 73% by mass or more, and the particle size of 11 μm or more is preferably 15% by mass or less, preferably 10% by mass or less. The solid powder cosmetic according to <1> or <2>, wherein is more preferable.
<4> In the total amount of component (A), the solid powder according to any one of <1> to <3>, preferably having a particle size of 4 μm or less is 32% by mass or more and more preferably 34% by mass or more. Cosmetics.
<5> The talc of component (A) is preferably hydrophobized and treated with silicone, fatty acid, lauroyllysine, lecithin, N-acylamino acid, metal soap, and fluorine compound The solid powder cosmetic according to any one of <1> to <4>, wherein the silicone treatment is more preferable.
The content of <6> component (A) is preferably 30% by mass or more, more preferably 50% by mass or more, preferably 75% by mass or less, more preferably 70% by mass or less in the total composition. The solid powder cosmetic according to any one of <1> to <5>.

<7> The oil agent of component (B) is preferably a linear or branched hydrocarbon oil, vegetable oil, animal oil, ester oil, silicone oil, fluorine oil, and a linear or branched hydrocarbon oil or ester The solid powder cosmetic according to any one of <1> to <6>, wherein oil and silicone oil are more preferable, and liquid isoparaffin, isotridecyl isononanoate, octyl paramethoxycinnamate, and dimethylpolysiloxane are more preferable.
The content of <8> component (B) is preferably 1% by mass or more, more preferably 3% by mass or more, more preferably 10% by mass or less, and more preferably 8% by mass or less in the total composition. The solid powder cosmetic according to any one of <1> to <7>.
<9> The mass ratio (A) / (B) of the components (A) and (B) is preferably 1 or more, more preferably 3 or more, further preferably 7 or more, and preferably 80 or less, 30 The solid powder cosmetic according to any one of <1> to <8>, wherein the following is more preferable, and 15 or less is more preferable.

<10> Any of the above <1> to <9>, wherein the fine particle zinc oxide of component (C) preferably has an average particle size of 10 to 30 nm, a particle size of 1 nm to 100 nm, and a specific surface area of 15 to 60 m ² / g. The solid powder cosmetic according to claim 1.
<11> The solid powder cosmetic according to any one of <1> to <10>, wherein the component (C) has been subjected to a hydrophobic treatment.
The content of <12> component (C) is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, still more preferably 2% by mass or more, and 20% by mass in the total composition. The solid powder cosmetic according to any one of the above items <1> to <11>, preferably at most, more preferably at most 15 mass%, further preferably at most 10 mass%.
<13> The mass ratio (A) / (C) of the components (A) and (C) is preferably 1 or more, more preferably 3 or more, further preferably 5 or more, and preferably 200 or less, 100 The solid powder cosmetic according to any one of the above items <1> to <12>, wherein the following is more preferable, and more preferably 24 or less.

<14> Further, (D) polyethylene glycol having a molecular weight of 200 to 3000 is contained, preferably polyethylene glycol having a molecular weight of 300 to 1000 is preferable, and polyethylene glycol having a molecular weight of 350 to 600 is more preferable. The solid powder cosmetic according to any one of the above.
The content of <15> component (D) is preferably 0.01% by mass or more, more preferably 0.1% by mass or more, still more preferably 0.2% by mass or more, in the total composition. The solid powder cosmetic according to the above <14>, preferably at most 5% by mass, more preferably at most 5% by mass, and even more preferably at 2% by mass.
<16> The mass ratio (A) / (D) of the components (A) and (D) is preferably 5 or more, more preferably 10 or more, still more preferably 100 or more, and preferably 600 or less, 300 The solid powder cosmetic according to <14> or <15>, wherein the following is more preferable, and 140 or less is more preferable.
<17> The contents of mica and titanium mica are preferably 10% by mass or less, more preferably 5% by mass or less, and further preferably 3% by mass or less in the total composition. <1> to <16> The solid powder cosmetic according to any one of the above.

Examples 1-9, Comparative Examples 1-3
Solid powder cosmetics having the compositions shown in Table 1 were produced. About the obtained solid powder cosmetics, good powder removal with sponge, good slip of sponge on the skin during application, no yellowing of finish immediately after application, brightness of finish, application The makeup persistence after 5 hours and the state of shine after 5 hours of application were evaluated. The results are also shown in Table 1.

(Production method)
Component (A), component (C) and other powders were dispersed, mixed and pulverized, then components (B) and (D) were added and mixed, and the resulting mixture was further pulverized with a pulverizer. The pulverized product obtained here was filled in an inner dish and molded at a filling amount of 10 g and a molding pressure of 1000 kg to obtain a solid powder cosmetic.

(Evaluation method)
Five expert evaluators have excellent powder removal when each solid powder cosmetic is taken with a sponge, good slippage when applied to the skin with a sponge, no yellowing of finish immediately after application, finish The brightness, makeup persistence after 5 hours of application, and the state of shine after 5 hours of application were subjected to sensory evaluation according to the following criteria. The results are shown as the total value of 5 people.

(1) Good powder removal with sponge:
5; The powder removal is very good.
4; Good powder removal.
3; Powder removal is slightly better.
2; Powder removal is not so good 1; Powder removal is not good

(2) Good sliding of the sponge on the skin during application:
5; Slip is very good.
4; Good sliding.
3; Slip is slightly good.
2; Sliding is not very good 1; Sliding is not good

(3) No yellowing of the finish immediately after application:
5: No yellowish dullness is seen in the finish.
4: No yellowish dullness is seen in the finish.
3; Yellowish dullness is not seen in the finish.
2; Yellowish dullness is seen in the finish.
1: The yellowish dullness is considerably seen in the finish.

(4) Finished brightness immediately after application:
5; The finish is very bright.
4; The finish is bright.
3; The finish is slightly bright.
2; The finish is not so bright.
1: The finish is not bright.

(5) Makeup persistence after 5 hours of application:
5: There is no makeup collapse.
4; There is not much makeup collapse.
3; Some makeup breaks are seen 2; Some makeup breaks are seen.
1; There is considerable makeup collapse.

(6) State of shine after 5 hours of application:
5: I can't see any shine.
4; I do not see much shine.
3; Some shine is seen.
2; shine is seen.
1; A lot of shine is seen.

Claims (7)

The following components (A), (B) and (C):
(A) Talc with a particle size of 14 μm or less 15-80% by mass,
(B) 0.1 to 20% by mass of a liquid oil at 25 ° C.
(C) Fine particle zinc oxide having an average particle diameter of 5 to 40 nm and a specific surface area of 10 to 100 m ² / g is contained. In the total amount of component (A), the particle diameter is 8 μm or less and 67% by mass or more, and the particle diameter is 11 μm or more. A solid powder cosmetic having a particle size distribution of 20% by mass or less.   The solid powder cosmetic according to claim 1, wherein the content of the component (C) is 0.01 to 20% by mass.   The solid powder cosmetic according to claim 1 or 2, wherein the mass ratio (A) / (B) of the components (A) and (B) is 1 to 80.   The solid powder cosmetic according to any one of claims 1 to 3, wherein the mass ratio (A) / (C) of the components (A) and (C) is 1 to 200.   The solid powder cosmetic according to any one of claims 1 to 4, wherein the component (A) is hydrophobized.   The solid powder cosmetic according to any one of claims 1 to 5, further comprising (D) a polyethylene glycol having a molecular weight of 200 to 3,000.   The solid powder cosmetic according to any one of claims 1 to 6, wherein the content of mica and titanium mica is 10% by mass or less.