| 摘要 |
PURPOSE:To eliminate blocking and runaway of a toner during storage and to obtain the toner having excellent fixability by incorporating a specific ratio of polyolefin wax into the toner contg. a thermoplastic resin binder and coloring agent. CONSTITUTION:The polyolefin wax is incorporated at 0.1-3wt.% into the toner contg. the thermoplastic resin binder and the coloring agent. The thermoplastic resin which has 80-160 deg.C softening point is preferable; for example, an epoxy resin, polyester resin, etc., such as bisphenol A/epichlorohydrin are used. For example, high-density polyethylene, polypropylene, the copolymers thereof or the copolymers thereof and other low-molecular olefin monomers such as butyrene, etc., are used for the polyolefin wax. The blocking of the toner during the storage is thereby prevented and the runaway is no longer admitted even in the fixing by using low flash energy. The toner having the excellent fixability is thus obtd. |
