| http://www.w3.org/ns/prov#value | - For example, in U.S. Pat. No. 5,198,023, issued Mar. 30, 1993 and assigned to the present assignee, multivalent cations such as calcium chloride and magnesium chloride are added at concentrations ranging from about 1 to 10 wt % to yellow cationic inks to prevent bleed between yellow and black inks.
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