Water Borne Resistive Ribbon Ink for Ribbon Conservation Use
Original Publication Date: 1988-Sep-01
Included in the Prior Art Database: 2005-Feb-15
In resistive ribbon printing, ribbon may be underfed for ribbon conservation, with loss of print quality in relation to the degree of underfeed. Such ribbon conservation is described in U.S. Patent 4,558,963. This article teaches an ink formula for such a ribbon comprising ethylene acrylic acid copolymer which may be applied during manufacture from a water dispersion. The final ribbon is a three-part lamination of a resistive substrate of conventional carbon-filled polycarbonate, an aluminum interlayer to serve as a ground connection, and this ink, which contacts the paper being printed upon and which may be underfed for ribbon conservation.