| 摘要 |
PURPOSE:To improve the fixability and uniformity of a toner layer by using capsules including a monomer or oligomer as a filler for preventing the lost contrast of transfer. CONSTITUTION:The filler for preventing the lost contrast of the transfer used in a liquid developer for electrostatic photography prepd. by dispersing toner particles and the filler for preventing the lost contrast of the transfer into an aliphat. hydrocarbon carrier liquid consists of the capsules each formed by coating a nuclear material essentially consisting of the monomer or oligomer with a shell material essentially consisting of a resin. Since the monomer or oligomer is incorporated into the capsules used for the filler for preventing the lost contrast of the transfer, the internal monomer or oligomer is fluidized and thermally polymerized when the shells of the capsules are cracked by the heat in the fixing stage, by which the toner layer is securely fixed and is introduced even into the small clearances in the recesses. The toner is thus made uniform. |
