Procedure for the Characterization of Zinc Oxide Photocopy Papers

    Volume 25, Issue 1 (January 1980)

    ISSN: 0022-1198

    CODEN: JFSOAD

    Published Online: 1 January 1980

    Page Count: 14


    Kelly, JD
    Chief document examiner, Wisconsin Crime Laboratory Bureau, Madison,

    Haville, P
    Postgraduate student, University of Wisconsin, Platteville,

    (Received 2 March 1979; accepted 20 June 1979)

    Abstract

    A method is presented for the characterization of zinc oxide photocopy papers. The tests include nondestructive physical examinations of weight, pH, and color under ultraviolet light. Chemical tests, consisting of thin-layer chromatographic examination of the sensitizing dyes and infrared spectrophotometry of the binder resins, are carried out on extractions of the photoconductive surface layer. A semiqualitative flow chart has been prepared that permits differentiation of most of the zinc oxide photocopy papers on the basis of the composite of characteristics of 50 papers supplied by eleven manufacturers.


    Paper ID: JFS10946J

    DOI: 10.1520/JFS10946J

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    Author
    Title Procedure for the Characterization of Zinc Oxide Photocopy Papers
    Symposium , 0000-00-00
    Committee E30