Laundry system having unitized dosing

US7056877B2 · kind B2 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Debra Sue Caswell · Beijing, CN
• Robert Gary Welch · Mason, US
• Mark William Ridyard · Heaton, GB
• Edward Sayers · Birtley, GB
• David William York · Toronto, CA
• Daniel James Dufton · Newcastle upon Tyne, GB
• Simon Howe · South Shields, GB
• Johan Eshuis · Ekeren, BE
• Angelina Pena-Romero · Tervuren, BE
• Christophe Laudamiel-Pellet · New York, US
• Wundriari Hoffmann · Frimley, GB
• George Endel Deckner · Cincinnati, US
• Errol Hoffman Wahl · Cincinnati, US
• Ruth Anne Murphy · Cincinnati, US
• Toan Trinh · Maineville, US
• Jiten Odhavji Dihora · Hamilton, US
• Ellen Schmidt Baker · Cincinnati, US
• Janet Sue Littig · Lancaster, US
• Timothy James Schroeder · Mason, US
• Steven Louis Diersing · Cincinnati, US
• Malcolm McClaren Dodd · Birtley, GB
• Lois Sara Gallon · Finneytown, US
• Charles Albert Hensley · Cincinnati, US

Key dates

• Filing date: Aug 25, 2004
• Grant date: Jun 6, 2006
• Expiry date: Aug 25, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D2111/12
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Compositions, articles and methods are provided for supplying fabric care benefits to clothing or fabrics in an automated washing machine and by manual washing. The fabric care compositions preferably have less than about 5% detergent surfactants, more preferably less than 3%, even more preferably less than 1% and are most preferably free of detergent surfactants. Similarly, the fabric care compositions preferably have less than about 5% fabric softener actives, more preferably less than 3%, even more preferably less than 1% and are most preferably free of detergent surfactants. The laundry articles can take a variety of forms in a variety of physical states all of which will rapidly dispense a unitized amount of one or more selected fabric care agents to a wash and/or rinse bath solution during the laundering process under a variety of conditions. The invention also pertains to laundry kits that contain a variety of such articles and instructions concerning their use. Likewise, methods for preparing a customized laundry solution to obtain a specific fabric care benefit selected based on the user's personal preferences and/or the fabric care needs of the fabrics being laundered are…