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US 9,322,125 B2Granted
Method for dispensing an enzyme in a laundry treating appliance
AssigneeWhirlpool Corporation
InventorsIrene M. Brockman, Kaustav Ghosh
Life of this patent
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Abstract
A method for treating laundry in a laundry treating appliance having an air supply system and a heating system both operably coupled to and controlled by a controller to supply heated air to a rotatable drum defining a treating chamber including the application of a lipase solution to the laundry during a cycle of operation.
Claims8
A method of treating laundry in a laundry treating appliance having an air supply system and a heating system both operably coupled to and controlled by a controller to supply heated air to a rotatable drum defining a treating chamber, the method comprising:
- determining a remaining moisture content of the laundry based on output from a moisture sensor;
- reducing the moisture content of the laundry in the treating chamber until the moisture content of the laundry satisfies a first predetermined moisture content threshold based on the output from the moisture sensor, wherein the first predetermined moisture content threshold is based on a moisture content corresponding to a desired activity of at least one lipase in a lipase solution to be applied to the laundry in the treating chamber;
- after the satisfying of the first predetermined moisture content threshold, applying a lipase solution to the laundry in the treating chamber until the moisture content of the laundry satisfies a second predetermined moisture content threshold based on the output from the moisture sensor, which is greater than the first predetermined moisture content threshold;
- and
- after the application of the lipase solution, supplying heated air to the treating chamber to reduce the moisture content of the laundry to satisfy the first predetermined moisture content threshold.
2 more elements
Dependencies are inferred from the claim text.