| abstract |
A liquid tissue treatment composition comprising either an anionic detersive surfactant or a cationic surfactant that is an active softener and conditioning substance, and: a particle, having a diameter of less than 2 mm, comprising: a) a central core of an enhancement agent, and b) surrounding the central core, a cover of a water soluble film-forming polymeric material (as defined herein), which is a polyvinyl alcohol: i) modified with a group of charged derivatization, in which the parental material from which the charged derivatization group is obtained is an acetal or an aldehyde, and the charged derivatization group comprises at least 0.1% by weight, based on the total weight of the polymer and ii) optionally, modified with a second hydrophobic derivatization group that is derived from a parental material having ClogP, calculated according to the procedure mentioned in the description ón, greater than 0.5, in which the film remains intact in the presence of a surfactant, and disintegrates when the concentration of the surfactant is reduced to a concentration less than 1 g / l, thereby releasing the improving agent. |