Compositions and methods for controlled release of olfactory substances

A composition for laundering textiles comprises a detergent composition and a particulate fragrance-bearing polymer comprising a water-soluble normally solid polymer, a water-insoluble normally solid polymer, and at least one perfume composition. A portion of the perfume composition is incorporated in the water-soluble polymer and a portion in the water-insoluble polymer. The water-soluble polymer and the water-insoluble polymer are physically associated with each other in such a manner that one is in the form of discrete entities in a matrix of the other, and the matrix substantially comprises the surface of the particle.