Agfa Gevaert Nv

Xeikon N.v.

Xeikon Manufacturing N.v.

Punch Graphix International N.v.

Michel Vervoort

Serge M Tavernier

Werner Op De Beeck

Lode Deprez

Werner J Op De Beeck

Jean-Pierre A Ghekiere

Danny Van Wunsel

A radiation curable toner is described having at least a radiation curable binder (e.g. a UV curable polymer), a photoinitiator, and a wax; wherein the wax is present in a concentration ranging from 0.3 to 3% by weight. The ratio of scratch resistance before curing is preferably at least 2. The toner may be used in a developer, e.g. a two-component developer, for printing or copying.

UV curable toner with improved scratch resistance

Dry toner particles are provided wherein the toner resin includes a mixture of two polymer A and B, A and B being chosen such that an extruded slab with thickness 250 &mgr;m of a 50:50 mixture of both has a transmission density (D ) being between 0.10 and 1.00 higher than the sum of half the transmission density of a 250 &mgr;m extruded slab of polymer A alone (D ) and half the transmission density of a 250 &mgr;m extruded slab of polymer B alone (D ). The polymers A and B are mixed in a weight ratio between 5:1 to 1:5 and make up at least 25% by weight of the total toner resin. The polymer A is a polyester and the polymer B is a polyester or a specified styrene-acrylic copolymer.

Electrostatically and/or magnetically attractable toner powder

Negatively charged toner powder for use in electrostatography

Growing community of inventors

Gierle, Belgium

Michel Vervoort