申请人:——
公开号:US20040137348A1
公开(公告)日:2004-07-15
A chemically prepared toner for electrophotographic printers and method therefor using a unique polymeric dispersant. The chemically prepared toner includes agglomerated polymeric dispersant stabilized pigment particles, a fuser release agent, a charge control agent dispersion, and a self-stabilized essentially surfactant free latex binder. The polymeric dispersant includes at least three segments, a hydrophilic polymeric segment, a hydrophobic polymeric segment, and a protective colloid or reactive surfactant segment. The weight average molecular weight range of the dispersant ranges from about 5,000 to about 30,000, and a hydrophobicity ranging from about 10 to about 90 percent by weight. The chemically prepared toner includes agglomerated toner particles have a unimodal particles size distribution with a number average particle size (N) ranging from about 5.0 to about 8.5 microns and a volume average particle size (V) ranging from about 5.0 to about 8.5 microns.
一种用于电子照相打印机的化学制备墨粉及其使用独特聚合物分散剂的方法。这种化学制备的墨粉包括团聚的聚合物分散剂稳定颜料颗粒、熔丝脱模剂、电荷控制剂分散体和基本不含表面活性剂的自稳定乳胶粘合剂。聚合物分散剂至少包括三个部分:亲水性聚合物部分、疏水性聚合物部分和保护胶体或活性表面活性剂部分。分散剂的重量平均分子量范围在 5,000 到 30,000 之间,疏水性在 10%到 90%之间。化学制备的调色剂包括团聚的调色剂颗粒,其颗粒大小分布呈单峰状,平均粒径(N)范围在约 5.0 至约 8.5 微米之间,平均体积粒径(V)范围在约 5.0 至约 8.5 微米之间。