Abstract: A carbon paper ink is described which includes a 2200-3000 heavy oil. The ink also includes Montan wax, paraffin slack wax, carbon black, a lubricant, and a filler. The heavy oil acts as a dispersant to provide for more even pigmentation and darker printing of the ink.

Abstract: Bi-level cartridge for an endless printer ribbon has superposed upper and lower compartments with a ribbon stuffing feed means located in each compartment. The ribbon is guided so that it travels once through each of the compartments for each pass that it makes past a printing station. The feed means for each compartment are coaxial and keyed together so they can be driven by the printer's drive member. To facilitate threading and stuffing of the cartridge, an idler roller portion for one of the feed means is selectively movable into or out of biased engagement with its driven roller portion.

Abstract: An improved chemical carbonless copy paper employing a selectively constituted hot melt coating for CB type pressure sensitive carbonless copy paper having discrete liquid droplets of a composite metallic salt solution chromogenic reagent material contained therein.

Abstract: An improved chemical carbonless copy paper system including an improved hot melt type of coating for CB type pressure sensitive carbonless copy paper having discrete liquid droplets of metallic salt solution electron accepting chromogenic reagent material contained therein.

Abstract: An improved chemical carbonless copy paper system including an improved hot melt type of coating for one surface of pressure sensitive carbonless copy paper having discrete liquid droplets of metallic salt solution electron accepting chromogenic reagent material contained therein in operative association with an image receptor coating for the other surface of said paper employing tri (p-phenylamino) phenyl methanol as a dye precursor type chromogenic reagent material therein.

Abstract: Improved receptor or CF coating composition for chemical carbonless copy paper employing spirit blue in carbinol form as a dye precursor type chromogenic reagent material.

Abstract: A water insensitive image receptor coating composition for pressure sensitive carbonless type transfer media.

Abstract: Pressure sensitive magnetic image transfer media in the form of a thin film substrate having a thin layer of solvent evaporated residue of a liquid mixture incorporating substantially equal dispersed amounts of polyethylene homopolymer and magnetically sensible material with small amounts of mutually incompatible dissolved acrylic film forming resin material and ethyl hydroxyl ethyl cellulose.

Abstract: An improved dispersant and flow agent for ink systems formed from a selectively oxidized linear unsaturated hydrocarbon having a carbon to carbon terminal double bond and a process for forming the same.