The present invention relates to water-dispersable microcapsules comprising an oil phase, e.g. a perfume, containing a photolabile α-ketoacid or α-ketoester capable of generating a gas upon exposure to light. The gas is able to cause an extension or the breaking of the microcapsule allowing the release of the oil phase and thus increasing the long-lastingness of the odor perception. The present invention concerns also the use of said microcapsules in perfumery as well as the perfuming compositions or perfumed articles comprising the invention's microcapsules to provide a prolonged release of fragrant molecules.
本发明涉及
水分散微囊,包括油相,例如
香料,其中包含光敏的α-
酮酸或α-
酮酯,能够在光照下产生气体。该气体能够引起微囊的扩张或破裂,释放油相,从而增加气味感知的持久性。本发明还涉及将所述微囊用于
香料以及包含本发明微囊的
香料组合物或带有香气的物品,以提供芳香分子的长时间释放。