Agfa Gevaert Nv

Paul F Sterckx

Serge M Tavernier

Paul J Coppens

Jean-Marie O Dewanckele

Ludovicus H Vervloet

Andre Verhecken

Toner particles comprising a toner resin and a thermosublimable dye wherein the resin has measured at 190.degree. C. a viscosity, .eta., between 30 and 100 mPa.s and a tg.delta. such that 0.015.ltoreq.tg.delta./.eta..ltoreq.0.20. Preferably tg.delta. such that 0.02.ltoreq.tg.delta./.eta.0.05.

Toner composition for use in textile printing

A negatively-chargeable dry electrostatographic developer is disclosed containing fluorinated inorganic microparticles, and toner particles comprising an acidic binder resin having an acid value between 10 and 30 mg KOH/G and not comprising (a) charge-controlling agent(s). The developers according to this invention show excellent fluidity and have improved negative chargeability. According to a preferred mode, fluorinated silica-type microparticles are added to the developer as free flowing additive in an amount of 0.1 to 5% by weight with respect to the toner, which preferably comprises an acidic carbon black.

Dry electrostatographic developer composition

The present disclosure relates to an electrophotographic method of obtaining a lithographic printing plate comprising the step of transferring a toner image from a toner image bearing member to a toner receiving plate, said toner receiving plate comprising a thermoplastic film support and a crosslinked hydrophilic layer thereon, characterized in that said crosslinked hydrophilic layer either carries on top thereof or incorporates spacing particles forming protuberances on said layer. According to a preferred embodiment, the average particle diameter by volume of the spacing particles is at least twice the average particle diameter by volume of the electrophotographic toner.

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Begijnendijk, Belgium

Paul F Sterckx