Abstract

Poly (ethylene oxide) is a polymer of ethylene oxide. It is one of the classes of synthetic water soluble resins which are commercially available. The properties of poly (ethylene oxide) as a desensitizer in the fountain solution were studied. The solution of this resin was compared to gum arabic solution. The investigation included the study of the physical properties of the solutions at different concentrations as well as press performance. Comparisons were made as to wettability, viscosity, surface tension, the ability to clean the plate, the resistance to scum, printing sharpness, resolution, and the plate-press characteristic curve. The experiments were made under controlled conditions; the only variable being one ingredient of the fountain solution. The properties of each solution were discussed and reported. The concentration of poly (ethylene oxide) necessary was determined. Most of the results were statistically analyzed by the two factors analysis of variance. The properties of poly (ethylene oxide) as a substitute for gum arabic in the fountain solution varied. Poly (ethylene oxide) is comparable in regard to the ability to clean the plate, resistance to scum, and printing sharpness. The gum arabic solution gives better resolution. The plate-press characteristic curves appear to be alike and almost superimpose on each other. The advantage of poly (ethylene oxide) is its high resistance to bacterial attack.

Library of Congress Subject Headings

Lithography--Technique; Oxide coating

Publication Date

6-1-1976

Document Type

Thesis

Department, Program, or Center

School of Photographic Arts and Sciences (CIAS)

Advisor

Silver, Julius

Comments

Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works. Physical copy available through RIT's The Wallace Library at: QD181.O1 C48

Campus

RIT – Main Campus

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