Dry cleaning process
AssigneeUnilever Home & Personal Care USA, Division of Conopco, Inc.
InventorsJohannes Maria Evers, Machiel Goedhart, Freddie Kerpels, Cornelis Gerhard Van Kralingen, Pieter Everhardus Overdevest, Hank Robert Reinhoudt, Karin Vrieswijk
Life of this patent
Estimating the term…
Abstract
A dry cleaning process for in-home dry cleaning comprising a low-aqueous dry cleaning step of contacting a laundry article with a low-aqueous dry cleaning composition, wherein said composition comprises a non-flammable, non-chlorine containing organic dry cleaning solvent, water and surfactant, whereby the water to cloth ratio (w/w) is less than 0.45 and the water to surfactant ratio (w/w) is at most 1.5, wherein said organic dry cleaning solvent is selected from hydrofluorocarbon, hydrofluoroether and siloxane solvent.
Claims6
A dry cleaning process for in-home dry cleaning consisting of a first step of contacting a laundry article with a low-aqueous dry cleaning composition, wherein said composition comprises a non-flammable, non-chlorine containing organic dry cleaning solvent, water and surfactant, whereby the water to cloth ratio (w/w) is less than 0.25 and the water to surfactant ratio (w/w) is at most 1.5, wherein said organic dry cleaning solvent is selected from hydrofluorocarbon, hydrofluoroether and siloxane solvent, whereby the liquid to cloth ratio (w/w) is at most 10;
- and a subsequent step of rinsing the article with only dry cleaning solvent comprising
- 0 to 0.0001 wt. % of a surfactant;
- 0 wt. % of water;
- 0 to 50 wt. % of a cosolvent and
- a non-flammable, non-chlorine containing organic dry cleaning solvent.
Dependencies are inferred from the claim text.