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Primary Examiner: Hartary, Joseph W.
Assistant Examiner:
Attorney: Biebel, French & Nauman

Next ten patents ordered by date:

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Title: Water based permanent jet printing ink and method of use

Abstract: An improved jet printing ink for use in jet drop printers and copiers is provided. The composition comprises an aqueous solution of a water soluble or solvent soluble dye, an organic chemical solvent comprising a glycol ether having 8 to 12 carbon atoms, a bridging agent for solubilizing the solvent and dye in solution comprising an ethoxylated higher alcohol amine-amide, a humectant, and a defoaming agent. The ink runs well in a multi-jet printer and will not dry out or clog printing head orifices even if left in the printing head for an extended period. The ink is fast drying on paper once printed and is smudge and light resistant.

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Inventors: Hwang, Ki-Sup (Xenia, OH, US)

Application Number: 044738
Filing Date: 1979-06-01
Publication_date: 1980-10-21
Assignee: The Mead Corporation (Dayton, OH)
Primary Class(es): 347/100 106/31.43
Other Classes:
US Patent Ref:

3705043	Dec, 1972	Zabiak	106/20.
3846141	Nov, 1974	Ostergren	106/22.
3870528	Mar, 1975	Edds	106/22.
3889269	Jun, 1975	Meyer	346/1.

Other Refs: 25552961494768

Sep, 1976	DE.
Dec, 1977	GB.

Other References: Edds et al.; Void Displacement Fast-Drying Process for Ink Jet Printer Ink; IBM Tech. Disc. Bulletin, vol. 18, No. 4, Sep. 1975, p. 1099.