Accession Number : AD0438024


Title :   RESEARCH IN CONTINUOUS TONE ELECTROPHOTOGRAPHY.


Descriptive Note : Final technical rept., 15 Apr-15 Oct 63


Corporate Author : AMERICAN ZINC LEAD AND SMELTING CO ST LOUIS MO


Report Date : 15 Oct 1963


Pagination or Media Count : 90


Abstract : This is a final report on a research study made to determine the feasibility of extending the continuous tone range of prints made by electrophotography. A pilot scale zinc oxide furnance is described and construction details are presented. Of the zinc oxide samples made, several are doped with copper, gallium, arsenic or phosphorous. Experimental procedures are described for the production of dry toners and liquid developers. Variables responsible for tonal quality are evaluated on the basis of choice or raw materials and influence of surfactants on the electrophoretic charge on the developer particles. (Author)


Descriptors :   *ELECTROPHOTOGRAPHY , *ZINC COMPOUNDS , PHOTOGRAPHIC TONE , PRODUCTION , OXIDES , PHOTOCONDUCTIVITY , PHOTOGRAPHIC CHEMICALS , STYRENE PLASTICS , CARBON BLACK


Distribution Statement : APPROVED FOR PUBLIC RELEASE