申请人:UNILEVER PLC
公开号:EP0571677A1
公开(公告)日:1993-12-01
The invention concerns clear o/w microemulsions comprising a perfume oil, an aqueous phase and one or more surfactants with HLB between 9 and 18, and optionally co-surfactants. The weight ratio of perfume oil to total surfactant is between 0.85 and 2.5, and preferably above 1 . The quantity of perfume oil is 0.01-40% w/w, preferably below 35%, of the microemulsion and the quantity of water at least 40% w/w, preferably at least 50%. The microemulsions comprise less than 25%, preferably less than 5%, of alcohol. The surfactants may be of the ionic or nonionic type.
The microemulsions are very suitable for perfuming purposes where the amount of organic solvents should preferably be kept to a minimum, such as for perfuming skin or hair.
本发明涉及透明的水包油型微乳液,包括香水油、水相和一种或多种 HLB 介于 9 和 18 之间的表面活性剂,以及可选的辅助表面活性剂。香水油与全部表面活性剂的重量比在 0.85 和 2.5 之间,最好在 1 以上。香水油的量为微乳液的 0.01-40%(重量百分比),最好低于 35%,水的量至少为 40%(重量百分比),最好至少为 50%。微乳液中的酒精含量低于 25%,最好低于 5%。表面活性剂可以是离子型或非离子型。
微乳剂非常适合用于有机溶剂用量应保持在最低水平的香水用途,例如用于皮肤或头发的香水。