Tumble dryer bleach and fabric treatment

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 less than 7.5 millimeters;
• wherein said non-woven material comprises a bleach stable polymer;
• wherein the exterior facing side of said diffusing membrane is wholly surrounded by at least one barrier membrane;
• (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.

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 less than 7.5 millimeters;
• wherein said non-woven material comprises a bleach stable polymer;
• wherein said bleach stable polymer is selected from the group consisting of polyester, polypropylene, polyethylene, hydrophilically modified polyester, hydrophobically modified polyester, hydrophilically modified polypropylene, hydrophilically modified polyethylene and mixtures thereof;
• (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.

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 less than 7.5 millimeters;
• 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.;
• wherein said chlorine-based bleaching agent has an initial mean particle size value greater than 250 microns and less than or equal to 2 times the average pore diameter of the diffusing membrane;
• (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.