公开(公告)号：US20020012752A1

公开(公告)日：2002-01-31

申请号：US09863032

申请日：2001-05-22

Applicant: Xerox Corporation

Inventor： Maria N. V. McDougall ,  Richard P. N. Veregin ,  Karen A. Moffat

IPC: B05D001/02

CPC classification number: G03G9/09708 ,  G03G9/0804 ,  G03G9/0819 ,  G03G9/097 ,  G03G9/09716 ,  G03G13/08

Abstract: Disclosed is a marking material comprising (a) toner particles which comprise a resin and a colorant, said particles having an average particle diameter of no more than about 7 microns and a particle size distribution of GSD equal to no more than about 1.25, wherein said toner particles are prepared by an emulsion aggregation process, and (b) hydrophobic conductive metal oxide particles situated on the toner particles. Also disclosed is a process for depositing marking material onto a substrate which comprises (a) providing a propellant to a head structure, said head structure having a channel therein, said channel having an exit orifice with a width no larger than about 250 microns through which the propellant can flow, said propellant flowing through the channel to form thereby a propellant stream having kinetic energy, said channel directing the propellant stream toward the substrate, and (b) controllably introducing a particulate marking material into the propellant stream in the channel, wherein the kinetic energy of the propellant particle stream causes the particulate marking material to impact the substrate, and wherein the particulate marking material comprises (a) toner particles which comprise a resin and a colorant, said particles having an average particle diameter of no more than about 7 microns and a particle size distribution of GSD equal to no more than about 1.25, wherein said toner particles are prepared by an emulsion aggregation process, and (b) hydrophobic conductive metal oxide particles situated on the toner particles.

Abstract translation: 公开了一种标记材料，其包含（a）包含树脂和着色剂的调色剂颗粒，所述颗粒的平均粒径不大于约7微米，GSD的粒度分布等于不超过约1.25，其中所述 调色剂颗粒通过乳液聚集方法制备，和（b）位于调色剂颗粒上的疏水性导电金属氧化物颗粒。 还公开了一种用于将标记材料沉积到基底上的方法，其包括（a）向头部结构提供推进剂，所述头部结构在其中具有通道，所述通道具有宽度不大于约250微米的出口孔，通过该出口孔 推进剂可以流动，所述推进剂流过通道从而形成具有动能的推进剂流，所述通道将推进剂流引向基底，和（b）可控地将颗粒状标记材料引入通道中的推进剂流中，其中 推进剂颗粒流的动能导致颗粒标记材料冲击基材，并且其中颗粒标记材料包括（a）包含树脂和着色剂的调色剂颗粒，所述颗粒的平均粒径不大于约 7微米，GSD的粒度分布等于不大于约1.25，其中所述调色剂 颗粒通过乳液聚集方法制备，和（b）位于调色剂颗粒上的疏水性导电金属氧化物颗粒。