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US 5,512,623 AGranted
Permanent aqueous marker inks
AssigneeThe Gillette Company
InventorsRachel M. Loftin, Kimberly B. Sanborn
Life of this patent
Estimating the term…
Abstract
Permanent aqueous marker inks are provided which include surfactant, a pigment, a film-forming polymer, and water. The surfactant may be a combination of a hydrocarbon, preferably an alkylphenol ethyoxylate and a fluorocarbon, or it may be a silicone.
Claims8
A method of marking a substrate including the steps of
- providing a marker having a reservoir, the reservoir containing an ink comprising a surfactant including at least one aliphatic group and a fluorocarbon surfactant, a pigment, a film-forming acrylic polymer, and water, and
- making a mark with said marker on a substrate.
A marker comprising
- an outer body wall defining an ink reservoir, the reservoir containing an ink comprising a surfactant including at least one aliphatic group and a fluorocarbon surfactant, a pigment, a film-forming acrylic polymer, and water;
- and
- a tip in fluid communication with said reservoir for delivering said ink to a substrate by capillary action.
Dependencies are inferred from the claim text.