BINDER RESIN FOR TONER AND TONER

摘要

A binder resin for a toner which comprises at least three types of vinyl polymers each having a molecular weight, a content of a functional group or the like different from one another and a cross-linking agent preferably having a vinyl polymer structure, and has a specific gel content. The binder resin for a toner and a toner using the resin are excellent in the fixability at a low temperature and also are excellent in the resistance to offsetting phenomenon and blocking, pulverizability, durability in development, and the like, and thus can be suitably used as those for a high speed copier.