Skin cleansing preparation
AssigneeKabushiki Kaisha Kishohin Kagaku Kaiho Kenkyusho
InventorsHiroshi Toida, Masumi Koishi
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Abstract
A pack cosmetic which comprises a mixture of (a) a solution of a water-soluble polymer and (b) particles of a water-insoluble polymeric compound having adhered thereon an inorganic pigment.
Claims13
A method of preparing a cleansing cosmetic preparation which is capable of absorbing both hydrophilic and oleophilic dirts from the skin, which consists essentially of:
- (a) first mixing by agitation particles of a water-insoluble polymer and particles of an inorganic pigment until the inorganic pigment particles are adhered to the surface of the water-insoluble polymer particles, the weight ratio of inorganic pigment particles to polymeric particles being from 0.01:1 to 1:1;
- and
- (b) then incorporating the water-insoluble polymer particles with the inorganic pigment particles adhered thereto into a previously prepared aqueous solution of a water-soluble polymer, the weight ratio of water-soluble polymer to pigment-coated water-insoluble polymer being from 1:0.01 to 1:0.5.
A method of preparing a cleansing cosmetic preparation which is capable of absorbing both hydrophilic and oleophilic dirts from the skin, which consists essentially of:
- (a) first mixing by agitation particles of a water-insoluble polymer and particles of an inorganic pigment until the inorganic pigment particles are adhered to the surface of the water-insoluble polymer particles, and
- (b) then incorporating the water insoluble polymer particles with the inorganic pigment particles adhered thereto into an aqueous solution of a water-soluble polymer, wherein said inorganic pigment particles have a size in the range of about 0.01 to 100 microns, said water-insoluble polymer particles have a size in the range of 1 to 1000 microns, the weight ratio of said water-soluble polymer to said water-insoluble polymer particles with said inorganic pigment particles adhered thereto is in the range of 1:0.01 to 1:0.5, the weight ratio of said inorganic pigment to said water-insoluble polymer is in the range of 0.01:1 to 1:1, said inorganic pigment is selected from the group consisting of titanium dioxide, calcium carbonate, talc, clay, kaolin, graphite, carbon black, silica, bentonite, alumina, magnesium hydroxide, and magnesium carbonate, and said water-insoluble polymer is selected from the group consisting of polyamide, nylon 12, polystyrene, polyethylene, benzoquanamine resin, and vinyl chloride resin.
A cleansing cosmetic preparation which is capable of removing both hydrophilic and oleophilic dirts from the skin, wherein said preparation is made by
- (a) first mixing by agitation a binary mixture of particles of a water insoluble polymer and particles of an inorganic pigment until the inorganic pigment particles are adhered to the surface of the water-insoluble polymer particles;
- and
- (b) then incorporating the water-insoluble polymer particles with the inorganic pigment particles adhered thereto into an aqueous solution of a water-soluble polymer, wherein the weight ratio of said water soluble polymer to said water-insoluble polymeric particles with said inorganic pigment particles adhered thereto is in the range of 1:0.01 to 1:0.5 and wherein the weight ratio of said inorganic pigment to said water-insoluble polymer is in the range of 0.01:1 to 1:1.
Dependencies are inferred from the claim text.