| 摘要 |
PROBLEM TO BE SOLVED: To obtain an oil-in-water type emulsion cosmetic that has high hairdressing habit, slight greasiness, excellent spread of agent and ease of taking from a container and improved stability with time. SOLUTION: The emulsion cosmetic is obtained by mixing (A) a straight-chain hydrocarbon wax composed of (A-1) one or more kinds of straight-chain hydrocarbon waxes having≥60°C melting point and (A-2) one or more kinds of straight-chain hydrocarbon waxes having≥30°C and <60°C melting point which is by≥5°C lower than that of (A-1) with (B) a branched-chain hydrocarbon-based wax having≥30°C melting point, (C) a 12-18C straight chain alkyl group-containing surfactant and (D) water and has≥5g hardness. A hardness measurement method comprises packing 60g of a sample into a cylindrical container having 5cm diameter and 4cm depth, allowing the sample to stand at 25°C for 24 hours, using a rheometer in which an adapter (disk having 1cm diameter) is set and measuring hardness at 1cm penetration depth. COPYRIGHT: (C)2007,JPO&INPIT
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