Abstract:

A review on the mechanisms of sweating and blooming with respect to the sepn. of oils from wax and the crystn. of fatty acids. By understanding these mechanisms, the solid-liq. sepn. phenomena caused by sweating and blooming may be avoided during the storage of oleaginous solid cosmetic pencils such as lipsticks, eyeliners, and eyebrow pencils. Studies show that sweating is due to the expansion of oils in the wax matrix and/or shriveling of the wax matrix due to increased temp. and humidity. In contrast, blooming involves the soly. of higher fatty acids, a modulator the consistency and hardness of oleaginous cosmetics in oils, and is assocd. with a series of processes such as dissoln.-sepn.-transformation of crystals of higher fatty acids. [on SciFinder(R)]