| 摘要 |
PURPOSE:To obtain a titled toner which is suppressed of offset phenomenon to a pressure roller and does not cohere during preservation by using specific polyolefin as a binder. CONSTITUTION:The polyolefin of 2,000-5,000 (preferably 2,000-4,000) in number average mol. wt. (Mn), >=2.8 (preferably 3-10) in the value of Mw/Mn (Mn is weight average mol. wt.) and >=110 deg.C (preferably >=120 deg.C in >=30%) in >=50% of total melting enthalpy amount is used as a binder, and this is compounded with pigments, dyes, magnetic powder, etc., and the mixture is prepared to fine powder, whereby the pressure-fixable toner is obtd. |
