申请人:THE PROCTER & GAMBLE COMPANY
公开号:EP0385535A1
公开(公告)日:1990-09-05
Microcapsules which are prepared using coacervation processes and/or which have a complex structure in which there is a large central core of encapsulated material, preferably perfume, and the walls contain small wall inclusion particles of either the core material or some other material that can be activated to disrupt the wall are disclosed. The microcapsules that are prepared by coacervation and contain perfume are especially desirable for inclusion in fabric softener compositions that have a pH of about 7 or less and which contain cationic fabric softener. The encapsulated perfume preferably does not contain large amounts of relatively water-soluble ingredients. Such ingredients are added separately to the fabric softener compositions. Ingredients that have high and low volatilities as compared to, e.g., the desired perfume, can either be added to, or removed from, the perfume to achieve the desired volatility.
本发明公开了使用共凝固工艺制备的微胶囊和/或具有复杂结构的微胶囊,在这种结构中,封装材料(最好是香水)有一个大的中心内核,而壁含有由内核材料或其他一些可活化以破坏壁的材料组成的小壁包合物颗粒。通过共凝固法制备的含有香水的微胶囊尤其适合加入 pH 值约为 7 或更低且含有阳离子织物柔软剂的织物柔软剂组合物中。封装的香水最好不含大量相对水溶性的成分。此类成分可单独添加到织物柔软剂组合物中。与所需香水等相比,挥发性较高或较低的成分可以添加到香水中或从香水中去除,以达到所需的挥发性。