| 摘要 |
A laundry additive particle having multiple coatings and compositions employing the particle are provided. The laundry additive particle comprises a porous carrier core material; a first encapsulating material coated on the core material to form an intermediate layer, the first encapsulating materia l comprising a glassy material derived from one or more at least partially wat er- soluble hydroxylic compounds having an anhydrous, nonplasticized, glass transition temperature, Tg, of at least about 0 ~C; and a second encapsulati ng material coated on the intermediate layer to form an outer layer, the second encapsulating material comprising a carbohydrate material having an anhydrou s, nonplasticized, glass transition temperature, Tg, of at least about 130 ~C; and the laundry additive particle has a hygroscopicity value of less than about 80 %. Preferably, a laundry or cleaning agent such as a perfume is supported on or contained in the porous carrier.
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