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US 5,872,090 AGranted
Stain removal with bleach
AssigneeThe Procter & Gamble Company
InventorsJing-Feng You, Michael Peter Siklosi
Life of this patent
Estimating the term…
Abstract
Stains are removed from fabrics safely and effectively using a spot removal composition which contains peroxide.
Claims11
An overall non-immersion cleaning process for treating a stained fabric, which comprises a prespotting operation and comprising the overall steps of:
- (a) applying a spot cleaning composition to said stained area wherein the spot cleaning composition comprises:
- (1) at least about 89%, by weight, of water;
- (2) from about 1% to about 10%, by weight, of an organic cleaning solvent;
- (3) from about 0.25% to about 7%, by weight, of hydrogen peroxide;
- (4) from about 0.05% to about 2%, by weight, of a detersive surfactant;
- (5) from about 0.01% to about 1%, by weight, of a peroxide-stabilizing amount of a chelating agent;
- and
- (6) less than about 0.3%, by weight, of a polyacrylate emulsifier;
- (b) concurrently or consecutively with Step (a), contacting the stained area of the fabrics with the treatment members of a convex cleaning device;
- (c) applying Z-directional force to said device;
- (d) placing the prespotted fabric together with a carrier containing an aqueous cleaning/refreshing composition in a containment bag;
- (e) placing the bag in a hot air clothes dryer and operating the dryer with heat and tumbling;
- and
- (f) removing the fabric from the bag.
11 more elements
An overall laundering process for treating a stained area of fabric, which comprises a prespotting operation, comprising the overall steps of:
- (a) applying a spot cleaning composition to said stained area wherein the spot cleaning composition comprises:
- (1) at least about 89%, by weight, of water;
- (2) from about 1% to about 10%, by weight, of an organic cleaning solvent;
- (3) from about 0.25% to about 7%, by weight, of hydrogen peroxide;
- (4) from about 0.05% to about 2%, by weight, of a detersive surfactant;
- (5) from about 0.01% to about 1%, by weight, of a peroxide-stabilizing amount of a chelating agent;
- and
- (6) less than about 0.3%, by weight, of a polyacrylate emulsifier;
- (b) concurrently or consecutively with Step (a), contacting the stained area of the fabrics with the treatment members of a convex cleaning device;
- (c) applying Z-directional force to said device;
- and
- (d) laundering the fabrics in a conventional aqueous laundering process.
9 more elements
A dry cleaning kit, comprising:
- (a) a convex cleaning device;
- (b) a spot cleaning composition comprising:
- (1) at least about 89%, by weight, of water;
- (2) from about 1% to about 10%, by weight, of an organic cleaning solvent;
- (3) from about 0.25% to about 7%, by weight, of hydrogen peroxide;
- (4) from about 0.05% to about 2%, by weight, of a detersive surfactant;
- (5) from about 0.01% to about 1%, by weight, of a peroxide-stabilizing amount of a chelating agent;
- and
- (6) less than about 0.3%, by weight, of a polyacrylate emulsifier;
- (c) a re-usable containment bag;
- (d) multiple, single-use sheets releasably containing an aqueous cleaning/refreshment composition;
- and
- (e) optionally, a re-usable holding tray;
- and
- (f) optionally, one or more absorbent stain receivers.
12 more elements
Dependencies are inferred from the claim text.