| 简介 |
The present invention provides a hairstyling cosmetic that applies easily; fits smoothly to hair; thickens thus has a superior hairstyling capacity immediately after application; and has suitable setting capacity, re-hairstyling capacity, and non-stickiness because upon completion of hairstyling, entire solvent volatilizes and a hairstyling component precipitates. The hairstyling cosmetic of the present invention is characterized by comprising : (a) one or more block-type alkylene oxide derivative(s) selected from formulae (1), (II), and (III), which is solid at room temperature (25°C) and insoluble in water but soluble in lower alcohols to become transparent; and (b) a solvent containing water and a lower alcohol, wherein the component (a) dissolves in component (b), and as the lower alcohol preferentially volatilizes after application, component (a) is admixed with the solvent with a changed composition, and then substantially entire solvent volatilizes : €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR 1 O-[(AO) p (EO) q (AO) r ]-R 2 €ƒ€ƒ€ƒ€ƒ€ƒ(I) €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR 1 O-[(EO) p (AO) q (EO) r ]-R 2 €ƒ€ƒ€ƒ€ƒ€ƒ(II) €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒR 1 O-[(EO) p (AO) q R 3 (AO) s (EO) r ]-R 2 €ƒ€ƒ€ƒ€ƒ€ƒ(III) wherein AO is an oxyalkylene group having 3 to 4 carbon atoms, EO is an oxyethylene group, p, q, r, and s are the average addition mole numbers, 1‰¦p+r‰¦90, and 1‰¦q+s‰¦90, the percentage of the oxyethylene groups with respect to the sum of the oxyalkylene groups having 3 to 4 carbon atoms and the oxyethylene groups is 20 to 80 mass %; each of R 1 and R 2 is a hydrocarbon group having 1 to 4 carbon atoms or a hydrogen atom and they can be either the same or different; and R 3 is a linear or branched hydrocarbon group having 1 to 36 carbon atoms. |
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