Patent ID: 8008247

Claim:
A treatment article for treating a fabric during a tumble drying process to deliver at least one benefit agent to the fabric, said treatment article comprising: (a) at least one pouch which dispenses at least one powdered benefit agent during the drying process, said pouch comprising: i. a flexible hollow containment means comprising a diffusing membrane separating and totally surrounding an interior region from an outer exterior environment; wherein said containment means has an interior volume capable of containing from between 1 to 100 grams of at least one powdered benefit agent; wherein said diffusing membrane provides the only communication means for migration of the powdered benefit agent between the interior region and the outer exterior environment; wherein said diffusing membrane comprises a porous water insoluble non-woven material having an average pore diameter of 250 microns to 1000 microns, and a thickness of equal to or less than 1 millimeter; wherein said non-woven material comprises a bleach stable polymer; (b) a powdered benefit agent comprising an oxidant material in the form of particles having a mean particle size of at least 250 microns; wherein said oxidant material comprises a chlorine-based bleaching agent; and wherein said powdered benefit agent particles are released from said pouch when the dryer temperature is in the range of from about 60° C. to about 100° C.; (c) optionally, a second benefit agent comprising a secondary benefit material in the form of secondary particles having a mean secondary particle size of between 100 to 1000 microns; and (d) optionally, a third benefit agent comprising a third benefit material comprising a tertiary particle having an initial mean tertiary particle size value that is at least 2 times greater than the average pore diameter of the diffusing membrane; wherein said third benefit agent undergoes at least one of a phase change, a physical change and/or a chemical change when heated to a temperature above 60° C.; said tertiary benefit agent being capable of being released from said pouch through said diffusing membrane when in the form of a liquid, a gas, a vapor, a volatilized substance and/or combinations thereof.