Radiation imagery chemistry: process – composition – or product th – Nonradiation sensitive image processing compositions or...
Patent
1987-03-11
1988-07-12
Martin, Roland E.
Radiation imagery chemistry: process, composition, or product th
Nonradiation sensitive image processing compositions or...
430110, 430291, 430331, 430528, 430965, G03C 524
Patent
active
047569913
ABSTRACT:
Fluorescent dry nonelectroscopic toner comprising fluorescent pigmented organic resin particles having a size distribution of 0.2 to 50 micrometers, surface coated with at least 0.1% by weight of silicone oil or fluorocarbon compound, in combination with at least 0.5% by weight of a water soluble, polymeric quaternary ammonium compound as defined. The fluorescent toner is useful in color developing positive- and negative-working photosensitive elements. The toners provide good toning quality and excellent lack of background color, together with stability on aging.
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E. I. Du Pont de Nemours and Company
Martin Roland E.
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