JP4256273B2 - Powder cleansing cosmetic - Google Patents

Description

  The present invention is a cleansing cosmetic with a solid oil-containing appearance, and when coated on the skin while being in powder form, the powders contain solid oil and are combined, granulated, and substantially spherical -It relates to a powdery cleansing cosmetic that forms a rod-like substance, captures dirt on the skin, and exhibits an excellent cleansing effect.

  As a cleansing cosmetic for removing dirt on the skin surface and smoothing the skin, a clay type (for example, see Patent Document 1), a peel-off type (for example, see Patent Document 2), a sheet type (for example, , Patent Documents 3, 4, and 5) have been used for a long time. For example, among these, the clay-type cleansing pack has a drawback in that it cannot sufficiently remove dirt clogged in pores, and the cleansing effect is unsatisfactory. In addition, the peel-off type cleansing pack that is applied to the skin, dried, and peeled off after the film is formed has a long drying time and cannot be uniformly applied because it is applied with a finger, and remains when it is peeled off. There was a problem that it was inconvenient to use. In addition, the sheet-like cleansing pack is simple, but it is difficult to check the dry state because it cannot be judged by appearance or when touched by hand, so it is difficult and the timing is too fast. The pores cannot be sufficiently removed, and if it is too slow, there is a problem that a strong irritation is felt when peeling.

Japanese Patent Laid-Open No. 7-173033 JP-A-10-265335 JP-A-5-194180 JP 7-330575 A Japanese Patent Laid-Open No. 11-172645

  The present invention has been made in view of the above circumstances, and its purpose is to provide a powder cleansing makeup with an excellent feeling of use that is excellent in the effect of removing dirt on the skin and that can be easily used without burdening the skin. Is to provide a fee.

  As a result of diligent research to solve the above problems, the present inventors have found that the above problems can be solved by using a solid oil component and a powdery cleansing cosmetic containing a specific inorganic powder. The present invention has been completed.

That is, the present invention is a powder cleansing cosmetic comprising (a) a solid oil component and (b) an inorganic powder having a specific surface area of 40 to 400 m ² / g.

  The inorganic powder is preferably columnar or tubular basic magnesium carbonate.

  The ratio of the component (a) and the component (b) is preferably 1: 4 to 4: 1 ((a) :( b)) by mass ratio.

  Furthermore, it is preferable to contain spherical powder. The blending of the spherical powder improves the slip of the cosmetic during use and can reduce irritation.

  When rubbed on the skin while it is in powder form, the powders contain solid oil and are combined and granulated to form a substantially spherical to rod-shaped substance, sufficiently capturing dirt on the skin and having a cleansing effect Moreover, the cosmetic can be easily removed after use.

In the present invention, the powdery cosmetic is a cosmetic in which powder particles freely flow and the appearance is in a powdery form. Moreover, solid, solid form, and liquid state represent the state at normal temperature. The specific surface area is the specific surface area by the BET method (gas adsorption method).
model-1201). The pore distribution is CE
Measurement was performed with a mercury intrusion porosimeter manufactured by Instruments (series 140 type, 440 type).

  According to the present invention, it is excellent in the effect of removing dirt on the skin such as dirt and darkness clogged in pores, and has no burden on the skin such as feeling strong irritation to the skin, and is excellent in a refreshing feeling after use, A powdery cleansing cosmetic that can be used conveniently is obtained.

  Hereinafter, the best mode for carrying out the present invention will be described in detail.

(A) Solid oil component The solid oil component usually used in cosmetics can be used as the solid oil component used in the present invention. Specifically, for example, low melting point paraffin wax (30-50 ° C), mole (50-53.5 ° C), whale wax (42-50 ° C), lanolin (37-43 ° C), hard lanolin (43- 50 ° C), myristyl myristate (36-46 ° C), cetyl palmitate (45-55 ° C), partially hydrogenated jojoba oil (40-60 ° C), partially hydrogenated sesame oil (36-44 ° C), partially hydrogenated Beef tallow (41-50 ° C), partially hydrogenated palm oil (43-60 ° C), alkyl-modified polysiloxane wax (30-32 ° C), ceresin (61-95 ° C), ozokerite (61-90 ° C), paraffin ( 61-70 ° C), high melting point paraffin (70-108 ° C), microcrystalline wax (60-85 ° C), high melting point microcrystalline wax (83-100 ° C), Synthetic hydrocarbon wax (85-100 ° C), polyethylene wax (75-105 ° C), highly branched olefin polymer (74 ° C), beeswax (60-67 ° C), candelilla wax (68-72 ° C), deresin can Delila wax (70-75 ° C), carnauba wax (80-86 ° C), ibotarou (70-75 ° C), rice bran (77-83 ° C), palmitic acid (50-63 ° C), stearic acid (52-70 ° C) Arachidic acid (65 to 75 ° C), behenic acid (69 to 80 ° C), alkyl-modified polysiloxane wax (68 to 74 ° C), and the like. The solid oil can be used by arbitrarily selecting one or more kinds.

  In the present invention, a solid oil component having a melting point of 30 to 60 ° C. (hereinafter referred to as a low melting point solid oil component) and a solid oil component having a melting point of 61 to 110 ° C. (hereinafter referred to as a high melting point solid oil component). Use in combination is preferable in that the effect of removing dirt on the skin is more exhibited. When used in combination, the content of both oils is such that the low-melting solid oil is 5 to 50% by mass in the total amount of the powder cleansing cosmetic, and the high melting solid oil is 5 to 65% by mass in the total amount of the powder cleansing cosmetic. preferable.

  The solid oil content used in the present invention is preferably in the range of 10 to 80% by mass in the total amount of the powder cleansing cosmetic. If the content is less than 10% by mass based on the total amount of the powder cleansing cosmetic, the effect of removing dirt on the skin is not sufficient, which is undesirable in terms of functionality. On the other hand, if it exceeds 80% by mass, it cannot be sufficiently pulverized and the intended powder form may not be obtained. A more preferable content is 50 to 70% by mass in the total amount of the powder cleansing cosmetic.

  In the present invention, it is also possible to adjust the hardness of the solid oil component by blending the liquid oil component with the solid oil component. The liquid oil is not particularly limited as long as it is a liquid oil usually used in cosmetics and the like, for example, liquid oils such as olive oil, castor oil, macadamia nut oil, evening primrose oil, avocado oil, liquids such as jojoba oil and liquid lanolin. Liquid hydrocarbons such as waxes (esters), liquid paraffin, squalane, polybutene, light liquid isoparaffin, α-olefin oligomer, isopropyl myristate, isopropyl palmitate, cetyl 2-ethylhexanoate, octyldodecyl myristate, octyl stearate , Liquid fatty acid monoesters such as octyl palmitate, liquid dibasic acid diesters such as diisopropyl adipate and di-2-ethylhexyl sebacate, liquid glycol esters such as neopentyl glycol dicaprate, tri-2-ethylhexanoic acid Liquid glycerol esters such as ceryl and glyceryl triisostearate, liquid polyglycerol esters such as diglyceryl diisostearate and diglyceryl triisostearate, and liquid pentaerythritol such as tetra-2-ethylhexanoic acid pentaerythritol and dioctanoic acid pentaerythritol Liquid esters such as esters, liquid trimethylolpropane esters such as trimethylolpropane tri-2-ethylhexanoate, trimethylolpropane triisostearate, liquid malates such as diisostearyl malate, isostearic acid, oleic acid, linol Liquid higher fatty acids such as acid and linolenic acid, liquid higher alcohols such as isostearyl alcohol, oleyl alcohol and octyldodecanol, dimethylpolysiloxane, methylphenol Liquid chain polysiloxane such as phenyl polysiloxane, liquid cyclic silicone such as octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, amino-modified polysiloxane, alkyl-modified polysiloxane, fluorine-modified polysiloxane, etc. Examples thereof include liquid silicone oils such as liquid-modified polysiloxanes and liquid fluorine compounds such as perfluoropolyethers. One or more liquid oil components are selected and blended.

  In the present invention, it is preferable to prepare a powder cleansing cosmetic by using one or more of these liquid oils and mixing them with a solid oil.

  When mix | blending a liquid oil component with this invention, the range of 0.1-40 mass% is preferable in the powder cleansing cosmetics whole quantity, and the range of 0.5-20 mass% is especially preferable.

(B) Inorganic powder having a specific surface area of 40 to 400 m ² / g In the present invention, an inorganic powder having a specific surface area of 40 to 400 m ² / g is contained. The effect of the present invention can be exhibited when the specific surface area is within this range. When the specific surface area is less than 40 m ² / g, the effect of removing dirt on the skin becomes insufficient. On the other hand, when the specific surface area exceeds 400 m ² / g, the handleability decreases. In the present invention, the preferred specific surface area is 70 to ²⁰⁰ m ² / g, more preferably 85 to ²⁰⁰ m ² / g. In particular, 90 to ²⁰⁰ m ² / g is preferable.

  The inorganic powder falling within the range of the specific surface area is not particularly limited, and examples thereof include magnesium carbonate, basic magnesium carbonate, anhydrous silicic acid, aluminum oxide, calcium silicate, magnesium aluminate silicate, and basic calcium carbonate. A metal compound, a metal oxide, etc. are mentioned. Among the inorganic powders, basic magnesium carbonate is preferable in that it has a high effect of removing dirt on the skin, has little irritation to the skin, and has a soft touch, and more preferably columnar or tubular basic magnesium carbonate.

  The columnar or tubular basic magnesium carbonate is a columnar or tubular basic magnesium carbonate composed of aggregated particles of flaky fine crystals of basic magnesium carbonate, and the flaky fine crystals forming the aggregated particles have a thickness of 0. 0.005 to 0.5 μm and a diameter of 0.1 to 10 μm are preferable, and these crystals are aggregated in a card house structure to form a columnar or tubular shape.

  The columnar or tubular aggregated particles of basic magnesium carbonate are not aggregated particles in which flaky microcrystals are easily dispersed by simple stirring, environmental changes such as temperature and pH.

  The columnar or tubular basic magnesium carbonate preferably has an outer diameter of 1 to 20 μm, a length of 5 to 200 μm, and a length / outer diameter ratio of 2 to 50. The length / outer diameter ratio is more preferably 4-50.

  In the present invention, a combination of columnar basic magnesium carbonate and tubular basic magnesium carbonate may be used.

The columnar or tubular basic magnesium carbonate suitably used in the present invention has a specific surface area of 40 to 400 m ² / g according to the BET method, and in particular, has a tubular surface area with a specific surface area of 70 to 200 m ² / g. More preferably, it is basic magnesium carbonate. By using the tubular basic magnesium carbonate, the effects of the present invention can be sufficiently exerted. A preferable shape of the tubular basic magnesium carbonate has an inner diameter of 0.5 to 5 μm and an inner diameter / outer diameter ratio of 0.1 to 0.95.

The specific surface area of the tubular basic magnesium carbonate is more preferably 85 to ²⁰⁰ m ² / g, more preferably 90 to ²⁰⁰ m ² / g. The tubular basic magnesium carbonate further has a pore volume (A) having a pore diameter of 0.01 to 100 μm in a pore distribution measured by a mercury intrusion method of 5000 to 12000 mm ³ / g, When the B / A, which is the ratio to the pore volume (B) having a pore diameter of 0.5 to 5 μm, is 0.45 to 0.85, the characteristics derived from the tubular shape are more effectively expressed. The

  The columnar or tubular basic magnesium carbonate can be obtained, for example, by the method described in JP-A-2003-306325. That is, a first step of mixing a water-soluble magnesium salt and a water-soluble carbonate in an aqueous solution to produce columnar particles of normal magnesium carbonate at a temperature of 20 to 60 ° C., and The suspension can be produced by a second step of heat treatment at a temperature higher than the temperature at which normal magnesium carbonate was produced in the first step and at a temperature of 35 to 80 ° C.

The inorganic powder having a specific surface area of 40 to 400 m ² / g may have a hydrophilic surface or a hydrophobic surface. For example, when the surface is hydrophilic, the surface can be used as it is, or the surface can be made hydrophobic by a hydrophobic treatment. The method of hydrophobizing treatment is not particularly limited. For example, coating baking using methyl hydrogen polysiloxane, metal soap, fatty acid dextrin, trimethylsiloxysilicic acid, dimethyl polysiloxane, methylphenyl polysiloxane And a coating treatment with a polymer having a fluorine group.

As for content of the inorganic powder whose specific surface area used for this invention is 40-400 m < ² > / g, 20-90 mass% is preferable in powdery cleansing cosmetics whole quantity. If the content is less than 20% by mass in the total amount of the powder cleansing cosmetic, it may not be possible to sufficiently pulverize, and the intended powdery form may not be obtained. Exceeding feels irritation on the skin and is not desirable in terms of sensuality. A more preferable content is 30 to 50% by mass in the total amount of the powder cleansing cosmetic.

In the present invention, the solid oil component (a) and the inorganic powder (b) component specific surface area of 40 to 400 m ² / g are used in a mass ratio of 1: 4 to 4: 1 ((a). : (B)). In the range of the blending ratio, in particular, a powdery cleansing cosmetic that is excellent in the effect of removing dirt on the skin, does not feel strong irritation to the skin, and has a refreshing feeling after use can be obtained.

In the present invention, in addition to the essential inorganic powder, other powder components may be blended. However, when a spherical powder is blended, slipping is improved when cosmetics are used, and irritation mitigation is improved. From the viewpoint, it is preferable to blend a spherical powder. Spherical powder is not particularly limited,
For example, polyamide spherical resin powder (nylon spherical powder), spherical polyethylene powder, polymethyl methacrylate spherical powder, crosslinked poly (meth) methyl methacrylate spherical resin powder, spherical polyester powder, crosslinked polystyrene spherical resin powder, styrene and acrylic acid Copolymer spherical resin powder, benzoguanamine spherical resin powder, polytetrafluoroethylene spherical powder, spherical cellulose, spherical styrene resin powder, spherical polymethylsilsesquioxane powder, spherical organopolysiloxane elastomer powder, spherical polyurethane powder, siloxane Polymethylsilsesquioxane spherical powder, silicone rubber spherical powder, heterogeneous organopoly, having a network structure with three-dimensional bonds and an intermediate structure between inorganic and organic with a methyl group bonded to one silicon atom Spherical made of siloxane Organic spherical powders such as composite powders; inorganic spherical powders such as spherical silica, spherical alumina, spherical titanium oxide, spherical magnesium carbonate, spherical magnesium silicate, spherical calcium silicate, and spherical anhydrous silicic acid.

  Examples of the shape of the spherical powder include a spherical shape and a shape similar to a sphere. The spherical powder preferably has an average particle size in the range of 0.1 to 30 μm, and particularly preferably has an average particle size in the range of 1 to 20 μm.

  One or more spherical powders can be arbitrarily selected and blended.

  When blending the spherical powder, the content is preferably 0.5 to 20% by mass in the total amount of the powder cleansing cosmetic in order to sufficiently exhibit the blending effect. More preferably, it is 1 to 15% by mass in the total amount of the powder cleansing cosmetic.

In the present invention, a powder having a specific surface area other than 40 to 400 m ² / g can be blended as an optional blended powder component other than the spherical powder as long as the effects of the present invention are not impaired. Examples of the powder include mica, talc, kaolin, sericite, synthetic mica, calcium carbonate, anhydrous silicic acid (silica), aluminum oxide, barium sulfate, bengara, yellow iron oxide, black iron oxide, cobalt oxide, ultramarine, Bituminous, titanium oxide, zinc oxide, titanium mica, boron nitride, calcium silicate, aluminum powder, fish phosphorus foil, bismuth oxychloride, red 228, red 226, blue 404, yellow 4, orange 204, blue No. 1, Green No. 3, etc. are mentioned.

  These other optional blended powder components can be blended by arbitrarily selecting one or more kinds.

  In the present invention, the optional powder component may have a hydrophilic surface or a hydrophobic surface. For example, when the surface is hydrophilic, the surface can be used as it is, or the surface can be made hydrophobic by a hydrophobic treatment. The method of hydrophobizing treatment is not particularly limited. For example, coating baking using methyl hydrogen polysiloxane, metal soap, fatty acid dextrin, trimethylsiloxysilicic acid, dimethyl polysiloxane, methylphenyl polysiloxane And a coating treatment with a polymer having a fluorine group.

  In the powdery cleansing cosmetic of the present invention, other components that are usually used in cosmetics, pharmaceuticals, and the like can be blended in addition to the components described above as long as the effects of the present invention are not impaired. For example, surfactants, moisturizers, various polymer resins, film agents, thickeners, UV absorbers, lower alcohols, polyhydric alcohols, pigments, vitamins, preservatives, antioxidants, fragrances, water, etc. Can be mentioned.

Hereinafter, the present invention will be specifically described with reference to examples. A compounding quantity is the mass%. Prior to the description of the examples, preparation of columnar or tubular basic magnesium carbonate having a specific surface area of 40 to 400 m ² / g used in the present invention and an effect test method will be described.

[Preparation of columnar or tubular basic magnesium carbonate having a specific surface area of 40 to 400 m ² / g]

[Production Example 1]
0.50 L of anhydrous sodium carbonate aqueous solution (220 g / L) was gradually added to 2.0 L of magnesium sulfate heptahydrate aqueous solution (125 g / L) adjusted to 40 ° C. while maintaining the temperature at 40 ° C., and stirred for 50 minutes. Thus, normal magnesium carbonate was obtained (first step). When this normal magnesium carbonate was observed with an SEM, it was confirmed to be columnar particles having a diameter of 1 to 3 μm and a length of 10 to 50 μm. Subsequently, the suspension of regular magnesium carbonate columnar particles (pH 10.2) obtained in the first step is heated and stirred for 120 minutes while maintaining the temperature at 55 ° C. to produce basic magnesium carbonate. (Second step). The obtained product was washed with ion-exchanged water and ethanol, dried, and then observed with an SEM. As a result, flaky primary particles having a thickness of 0.01 to 0.04 μm and a diameter of 0.5 to 2 μm were obtained. It was confirmed that the aggregated particles were tubular basic magnesium carbonate having an outer diameter of 1 to 5 μm, an inner diameter of 0.5 to 3 μm, and a length of 5 to 20 μm.

[Production Example 2]
0.50 L of sodium carbonate aqueous solution (210 g / L) was gradually added to 2.0 L of magnesium chloride hexahydrate aqueous solution (105 g / L) adjusted to 35 ° C. while maintaining the temperature at 35 ° C., and stirred for 30 minutes. To obtain normal magnesium carbonate (first step). When this normal magnesium carbonate was observed with an SEM, it was confirmed to be columnar particles having a diameter of 1 to 3 μm and a length of 10 to 60 μm. Subsequently, the suspension of columnar particles of normal magnesium carbonate (pH 9.6) obtained in the first step is heated and stirred for 180 minutes while maintaining the temperature at 50 ° C. to produce basic magnesium carbonate. (Second step). The obtained product was washed with ion-exchanged water and ethanol, dried, and then observed with an SEM. As a result, flaky primary particles having a thickness of 0.01 to 0.05 μm and a diameter of 0.5 to 3 μm were obtained. Agglomerated particles with an outer diameter of 2 to 3 μm, an inner diameter of 1 to 1.5 μm, a tubular basic magnesium carbonate with a length of 10 to 20 μm, a thickness of 0.01 to 0.05 μm, and a diameter of 0 It was confirmed to be a mixture of columnar basic magnesium carbonate having a diameter of 1 to 3 μm and a length of 10 to 20 μm.

[Production Example 3]
The magnesium sulfate-containing solution generated in the flue gas desulfurization process by the magnesium hydroxide method was filtered to remove solids, and then an appropriate amount of ion-exchanged water was added to prepare 2.0 L of a 50 g / L magnesium sulfate solution. After adjusting this magnesium sulfate solution to 50 ° C., 0.50 L of an aqueous sodium carbonate solution (210 g / L) was gradually added while maintaining the same temperature and stirred for 20 minutes to obtain normal magnesium carbonate (first step). ). When this normal magnesium carbonate was observed with an SEM, it was confirmed to be columnar particles having a diameter of 1 to 3 μm and a length of 10 to 60 μm. This normal magnesium carbonate suspension was filtered, and the solid content was washed with ion-exchanged water, and then again dispersed in 2.0 L of ion-exchanged water to remove impurities such as sodium sulfate. A suspension was prepared. Subsequently, an appropriate amount of aqueous sodium hydroxide solution was added to the suspension of columnar particles of magnesium carbonate obtained in the first step to adjust the pH to 10.6. Was maintained for 60 minutes while maintaining at 70 ° C. to produce basic magnesium carbonate (second step). The obtained product was washed with ion-exchanged water and ethanol, dried, and then observed with an SEM. As a result, flaky primary particles having a thickness of 0.01 to 0.05 μm and a diameter of 0.5 to 3 μm were obtained. It was confirmed that the aggregated particles were tubular basic magnesium carbonate having an outer diameter of 2 to 3 μm, an inner diameter of 1 to 1.5 μm, and a length of 10 to 20 μm.

[Production Example 4]
0.50 L of anhydrous sodium carbonate aqueous solution (220 g / L) was gradually added to 2.0 L of magnesium sulfate heptahydrate aqueous solution (125 g / L) adjusted to 45 ° C. while maintaining the temperature at 45 ° C., and stirred for 30 minutes. Thus, normal magnesium carbonate was obtained (first step). When this normal magnesium carbonate was observed with an SEM, it was confirmed to be columnar particles having a diameter of 1 to 3 μm and a length of 10 to 50 μm. Subsequently, the suspension of regular magnesium carbonate columnar particles (pH 10.5) obtained in the first step is heated and stirred for 120 minutes while maintaining the temperature at 55 ° C. to produce basic magnesium carbonate. (Second step). The obtained product was washed with ion-exchanged water and ethanol, dried, and then observed with an SEM. As a result, flaky primary particles having a thickness of 0.01 to 0.04 μm and a diameter of 0.5 to 2 μm were obtained. The agglomerated particles were confirmed to be tubular basic magnesium carbonate having an outer diameter of 2 to 4 μm, an inner diameter of 1 to 2 μm, and a length of 5 to 20 μm.

[Production Example 5]
0.50 L of anhydrous sodium carbonate aqueous solution (225 g / L) was gradually added to 2.0 L of magnesium sulfate heptahydrate aqueous solution (125 g / L) adjusted to 48 ° C. while maintaining the temperature at 48 ° C., followed by stirring for 30 minutes. Thus, normal magnesium carbonate was obtained (first step). When this normal magnesium carbonate was observed with an SEM, it was confirmed to be columnar particles having a diameter of 1 to 2 μm and a length of 10 to 50 μm. Subsequently, the suspension of regular magnesium carbonate columnar particles (pH 10.7) obtained in the first step is heated and stirred for 120 minutes while maintaining the temperature at 53 ° C. to produce basic magnesium carbonate. (Second step). The obtained product was washed with ion-exchanged water and ethanol, dried, and then observed with an SEM. As a result, flaky primary particles having a thickness of 0.01 to 0.04 μm and a diameter of 0.5 to 2 μm were obtained. It was confirmed that the aggregated particles were tubular basic magnesium carbonate having an outer diameter of 1 to 3 μm, an inner diameter of 0.5 to 1.5 μm, and a length of 5 to 20 μm.

[Comparative Production Example 1]
0.50 L of anhydrous sodium carbonate aqueous solution (220 g / L) was gradually added to 2.0 L of magnesium sulfate heptahydrate aqueous solution (125 g / L) adjusted to 80 ° C. while maintaining the temperature at 80 ° C. While maintaining the temperature at 80 ° C., the mixture was stirred for 60 minutes to produce basic magnesium carbonate. The obtained product was washed with ion-exchanged water and ethanol, dried, and then observed with an SEM. As a result, flaky primary particles having a thickness of 0.01 to 0.05 μm and a diameter of 0.3 to 2 μm were obtained. It was confirmed that the agglomerated particles were irregular basic magnesium carbonate having a diameter of 2 to 4 μm. In Comparative Production Example 1, formation of normal magnesium carbonate could not be confirmed during the reaction process.

  Table 1 shows the physical property values of the basic magnesium carbonate obtained in Production Examples 1 to 5 and Comparative Production Example 1.

(Note 1) Pore volume with pore diameter of 0.01-100 μm (Note 2) Pore volume with pore diameter of 0.5-5 μm

[Use test]
With powder cleansing cosmetic, rubbing the area where skin dirt is worrisome, no burden (stimulation) on the skin during use, refreshing feeling after washing off cosmetic after use, dirt on skin (pores A usage test was conducted on the removal effect of clogged dirt, darkening, etc., and the overall usability, and the evaluation was performed according to the following criteria.

<Evaluation criteria>
(1) Burden on skin during use (stimulation)
○: No skin irritation.
Δ: Slight irritation to skin.
X: There is irritation to the skin.

(2) Refreshing feeling after rinsing ○: Refreshing after rinsing.
Δ: Slightly sticky after washing.
×: Sticky after washing.

(3) Skin dirt removal effect ○: Skin dirt can be removed well.
Δ: A little dirt on the skin can be removed, but it is not sufficient.
X: Skin dirt is hardly removed.

(4) Overall usability ○: Easy to use.
(Triangle | delta): Use is somewhat troublesome.
X: Use is troublesome.

[Examples 1 to 17, Comparative Examples 1 to 6]
Powdered cleansing cosmetics having the ingredients and blending amounts shown in Tables 2 to 5 (total blending amount: 100% by mass) were prepared by the following method.

(Preparation method)
1. A solid oil or a solid oil and a liquid oil were dissolved in a solvent.
2. The composition 1 was added to the powder component while stirring and mixed uniformly.
3. After the oil component was absorbed in the powder component, it was dried under reduced pressure with stirring and cooled to room temperature to obtain a powdery cleansing.

In Tables 2-5,
(Note 1) EMW-0003 (melting point 50 ° C.) (manufactured by Nippon Seiwa Co., Ltd.)
(Note 2) HNP-10 (melting point 75 ° C.) (manufactured by Nippon Seiwa Co., Ltd.)
(Note 3) FLORASTERS30 (melting point 47-56 ° C.) (INTERNIONAR
(Made by FLORA TECHNOLOGIES)
(Note 4) Ceresin 810 (melting point 74 ° C.) (manufactured by Nikko Rica Corporation)
(Note 5) PERFORMALENE
655
Polyethylene (melting point 99 ° C) (NEW
FACE TECHNOLOGIES made)
(Note 6) Tubular basic magnesium carbonate of Production Example 1 (specific surface area: 144 m ² / g)
(Note 7) Tubular / columnar basic magnesium carbonate of Production Example 2 (specific surface area: 81 m ² / g)
(Note 8) Tubular basic magnesium carbonate of Production Example 3 (specific surface area: 98 m ² / g)
(Note 9) Tubular basic magnesium carbonate of Production Example 4 (specific surface area: 160 m ² / g)
(Note 10) Tubular basic magnesium carbonate of Production Example 5 (specific surface area: 182 m ² / g)
(Note 11) Nylon powder SP-500 (average particle size 5-10 μm) (manufactured by Toray Dow Corning Silicone Co., Ltd.)
(Note 12) Matsumoto Microsphere M-100 (average particle size 5 to 10 μm) (manufactured by Matsumoto Yushi Co., Ltd.)
(Note 13) Tospearl 145 (average particle size 3-6 μm) (Toshiba Silicone Co., Ltd.)
(Note 14) KSP-105 (average particle size 2 μm) (manufactured by Shin-Etsu Chemical Co., Ltd.)
(Note 15) Florite R (specific surface area: 115 m ² / g) (manufactured by Tokuyama Corporation)
(Note 16) Amorphous basic magnesium carbonate of Comparative Production Example 1 (specific surface area: 24 m ² / g)

  The effect test was done about the powdery cleansing cosmetics of Examples 1 to 17 and Comparative Examples 1 to 6, and the evaluation results are shown in Tables 2 to 5. The table shows the evaluation results evaluated by the largest number of people in the test with 20 expert panels.

  As can be seen from Tables 2 to 4, the powdery cleansing cosmetics of Examples 1 to 17 according to the present invention all have excellent effects.

  On the other hand, as can be seen from Table 5, none of the powdery cleansing cosmetics of Comparative Examples 1 to 6 that do not satisfy the configuration of the present invention can exhibit the effects of the present invention.

  Hereinafter, examples of the powder cleansing cosmetic of the present invention will be described. In addition, manufacture was performed according to the method of Examples 1-17. Moreover, when the said effect test was done in these, the outstanding result was obtained in all.

Example 18
Ingredient Amount (% by mass)
Low melting point paraffin wax (Note 1) 10.0
Ceresin (Note 2) 10.0
Glyceryl tri-2-ethylhexanoate 4.2
Tubular basic magnesium carbonate (Note 3) 35.0
Tubular basic magnesium carbonate (Note 4) 35.0
Spherical polymethyl methacrylate powder (Note 5) 5.0
Antioxidant 0.1
Preservative 0.1
Menthol 0.5
Blue No. 1 aluminum lake 0.1
Total 100.0

(Note 1) EMW-0003 (melting point 50 ° C.) (manufactured by Nippon Seiwa Co., Ltd.)
(Note 2) Ceresin 810 (melting point 74 ° C.) (manufactured by Nikko Rica Corporation)
(Note 3) Tubular basic magnesium carbonate of Production Example 1 (specific surface area: 144 m ² / g)
(Note 4) Tubular basic magnesium carbonate of Production Example 3 (specific surface area: 98 m ² / g)
(Note 5) Matsumoto Microsphere M-100 (average particle size 5-10 μm) (Matsumoto Yushi Co., Ltd.)

Example 19
Ingredient Amount (% by mass)
Partially hydrogenated jojoba oil (Note 1) 5.0
Polyethylene wax (Note 2) 30.0
Octyl palmitate 19.7
Tubular basic magnesium carbonate (Note 3) 20.0
Tubular basic magnesium carbonate (Note 4) 20.0
Spherical polymethyl methacrylate powder (Note 5) 5.0
Antioxidant 0.1
Preservative 0.1
Fragrance 0.1
Total 100.0

(Note 1) FLORASTERS30 (melting point 47-56 ° C.) (INTERNIONAR
(Made by FLORA TECHNOLOGIES)
(Note 2) PERFORMALENE
655
Polyethylene (melting point 99 ° C) (NEW
FACE TECHNOLOGIES made)
(Note 3) Tubular basic magnesium carbonate of Production Example 3 (specific surface area: 98 m ² / g)
(Note 4) Tubular basic magnesium carbonate of Production Example 5 (specific surface area: 182 m ² / g)
(Note 5) Matsumoto Microsphere M-100 (average particle size 5-10 μm) (Matsumoto Yushi Co., Ltd.)

Example 20
Ingredient Amount (% by mass)
Low melting point paraffin wax (Note 1) 50.0
Ceresin (Note 2) 10.0
Octyl palmitate 9.7
Tubular basic magnesium carbonate (Note 3) 10.0
Tubular basic magnesium carbonate (Note 4) 10.0
Tubular basic magnesium carbonate (Note 5) 10.0
Antioxidant 0.1
Preservative 0.1
Fragrance 0.1
Total 100.0

(Note 1) EMW-0003 (melting point 50 ° C.) (manufactured by Nippon Seiwa Co., Ltd.)
(Note 2) Ceresin 810 (melting point 74 ° C.) (manufactured by Nikko Rica Corporation)
(Note 3) Tubular basic magnesium carbonate of Production Example 1 (specific surface area: 144 m ² / g)
(Note 4) Tubular basic magnesium carbonate of Production Example 3 (specific surface area: 98 m ² / g)
(Note 5) Tubular basic magnesium carbonate of Production Example 4 (specific surface area: 160 m ² / g)

Claims (2)

(A) a solid oil component 20-65% by weight, when rubbed in use, characterized by containing 30 to 70 wt% basic magnesium carbonate tubular (b) a specific surface area of 70~200m ² / g Granulated powder cleansing cosmetics. Furthermore, powdery cleansing cosmetic composition of claim 1 Symbol placement containing spherical powder.