发明授权
- 专利标题: Method of non-electrostatically transferring small electrostatographic toner particles from an element to a receiver
- 专利标题(中): 将小型静电调色剂颗粒从元件转移到接收器的方法
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申请号: US999021申请日: 1992-12-31
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公开(公告)号: US5308733A公开(公告)日: 1994-05-03
- 发明人: Donald S. Rimai , Louis J. Sorriero , John M. McCabe
- 申请人: Donald S. Rimai , Louis J. Sorriero , John M. McCabe
- 申请人地址: NY Rochester
- 专利权人: Eastman Kodak Company
- 当前专利权人: Eastman Kodak Company
- 当前专利权人地址: NY Rochester
- 主分类号: G03G7/00
- IPC分类号: G03G7/00 ; G03G13/16
摘要:
A method is provided for non-electrostatically transferring dry toner particles which comprise a toner binder and have a particle size of 8 micrometers or less from the surface of an element to a receiver. The receiver comprises a substrate having a coating of a semi-crystalline polyester on a surface of the substrate. The semi-crystalline polyester has a glass transition temperature in a range of from approximately 5.degree. C. to 80.degree. C.; a melting temperature in a range of from approximately 40.degree. C. to 200.degree. C.; a weight average molecular weight in a range of from approximately 10,000 to 150,000; a number average molecular weight in a range of from approximately 5,000 to 75,000; a crystallinity of from approximately 5 to 25 percent by weight, based on the total weight of the polyester and a surface energy of from approximately 44 to 52 dynes/cm. The method involves preheating the receiver to a temperature ranging from approximately 70.degree. C. to 95.degree. C. and contacting the toner-bearing element with the receiver to effectuate the transfer of virtually 100% of the toner particles from the element to the receiver and thereafter separating the receiver from the element while the temperature of the semi-crystalline polyester coating on the receiver is maintained above the glass transition temperature of the semi-crystalline polyester.The method is particularly well suited for providing images having high resolution and low granularity from very small toner particles.
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