Minnesota Mining and Manufacturing Company

Linda K Williams

Jeffrey C Chang

Eric Daniel Morrison

Terrance P Smith

Cecil V Francis

David W Macomber

Ramaiah Muthyala

Prakob Kitipichai

A vanadium oxide coating useful as an antistatic protection layer on a donor sheet or a receptor sheet of a thermal transfer system is provided. The preferred antistatic coating is formed from a composition of a vanadium oxide colloidal dispersion.

Thermal transfer systems having vanadium oxide antistatic layers

The present invention provides fluorine-containing arylazoanaline dyes that are useful in thermal transfer systems. Specifically, the present invention provides thermal transfer donor sheets containing dyes of the following formula: ##STR1## wherein: R.sup.1 is a (C.sub.1-20)alkyl or hydroxy(C.sub.1-20)alkyl group; R.sup.2 is a hydroxy(C.sub.1-20)alkyl or (C.sub.1-20)alkylene--OC(O)NH--(C.sub.1-20)alkylene--OC(O)--R.sup.4 wherein R.sup.4 is a (C.sub.1-20)alkenyl group or a polymerized alkenyl group; and R.sup.3 is F or CF.sub.3. Useful dyes of this formulation are stable under ambient conditions for at least about 6 months.

Thermally transferable fluorine-containing AZO dyes

Dye donor sheets comprising a substrate having a coating comprising a binder and at least one neutral 1:1 metal-azo or neutral 1:1 metal-azomethine dye having the general structure: ##STR1## wherein Z.sub.1 and Z.sub.2 each independently represent an arene nucleus, having from 5 to 14 ring atoms;

Transfer imaging using metal-azo and metal-azomethine dyes

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Saint Paul, MN, United States of America

Linda K Williams