RESIN COMPOSITION FOR TONER FOR REVERSAL DEVELOPMENT AND TONER FOR REVERSAL DEVELOPMENT

摘要

PROBLEM TO BE SOLVED: To obtain a resin composition for a toner for reversal development and a toner for reversal development which shows good balance of electrification property and fixing property of the toner and which does not produce fog or fog relating to photoconductivity. SOLUTION: The resin composition for a toner for reversal development is a copolymer resin of styrene monomers, (meth)acrylate monomers and polymerizable monomers containing carboxyl groups. The resin has 20 to 60 mgKOH/g acidic value, =-20 μC electrification amount and =1×1010 Ωcm volume resistance.