Whirlpool Corporation

William L Murch

Kaustav Ghosh

Gregory R Fulmer

Mir A Quddus

Robert J Pinkowski

Nicholas E Leep

Nicholas E Righetti

Jason M Schneemann

Brian Keith Rogers

Matthew Craig Parsons

James W Klein

A method and apparatus for operating a laundry treating appliance comprising a treating chamber for receiving a load of laundry for treatment according to at least one cycle of operation wherein a dye containing liquid is generated in the treating chamber during the operation, the method comprising backwashing the pre-filter to remove the non-dye material from the pre-filter.

Laundry treating appliance with pre-filter backwashing

A method of treating laundry in a laundry treating appliance having a treating chamber for receiving the laundry for treatment according to an automatic cycle of operation implemented by a controller of the laundry treating appliance includes receiving by the controller an input indicative of the laundry comprising at least one new laundry item.

Methods and compositions for treating laundry items

A clothes dryer for drying fabric items in accordance with a treating cycle of operation, includes a treating chamber receiving fabric items for treatment and a controller having a memory in which is stored a set of executable instructions comprising at least one user-selectable cycle of operation, the controller may receive an indication of a dye transfer event and implement a cycle of operation based thereon.

A reduced dye transfer cycle of operation for a laundry treating appliance having a treating for receiving laundry for treatment includes a treating chemistry application phase where a treating chemistry is supplied to the treating chamber, the treating chemistry including at least one water soluble cationic dye absorber, a surfactant system, and an emulsifier.

A method of operation for a laundry treating appliance having a treating chamber for receiving laundry for treatment includes a pre-wetting phase, a wash phase, and a rinse phase and further includes a dye fixative phase, a first dye absorber phase, and a second dye absorber phase.

A method for inhibiting dye transfer between items of laundry in a fabric treating appliance including a treating chamber for receiving the fabric items for treatment according to a cycle of operation, the method including supplying liquid to the treating chamber to form a liquid mixture comprising the liquid and free dye molecules and dye absorbers in solution or in suspension within the liquid mixture. At least one of ultraviolet (UV) or visible light spectroscopy may be conducted on the liquid to define at least one of an absorbance or fluorescence value indicative of a level of at least one of the dye absorber or complex in the liquid.

Growing community of inventors

Owasso, OK, United States of America

William L Murch