Patent attributes
The present invention relates to a process for the manufacture of a spray dried powder comprising:(a) forming a warm, stirred aqueous slurry comprising: inorganic salts, at least one binding agent and 0.001 to 20% by weight of capsules based on the weight of spray dried powder, said capsules containing benefit agents including at least perfume, and(b) spray drying the resultant slurry to form a spray dried powder, said capsules being such that:1) more than 40% of the benefit agents remain encapsulated 60 minutes after dispersion thereof at 70° C. in the slurry as defined in the “slurry survival test” in a sealed vessel without agitation; and2) more than 30% of the benefit agents added for 15 minutes to an ambient slurry as defined in the “spray dry test” survive spray drying through a laboratory scale spray drier.
