Dry type toner improvement with lubricant
    18.
    发明授权
    Dry type toner improvement with lubricant 失效
    干式调色剂改善润滑剂

    公开(公告)号:US5437955A

    公开(公告)日:1995-08-01

    申请号:US253410

    申请日:1994-06-03

    Abstract: A dry toner composition for electrophotography includes a binder resin, a coloring agent and a mica-group mineral. The mica-group mineral provides the toner composition with lubricity and better flow capabilities. The mica-group mineral is wet-ground and may be coated with calcium stearate to reduce static electricity generated during operation of the printer, copier, or facsimile machine. The mica-group mineral and calcium stearate blend comprises ninety percent by weight or more of the mica-group mineral and ten percent by weight or less of the calcium stearate. The mica-group mineral or the mica-group mineral coated with calcium stearate makes up about zero-point-one to around fifteen percent by weight of the toner composition. The lubricant and flow agent formed by the mica-group mineral with or without the calcium stearate may be mixed into conventional dry toner as a post-additive. A mica-group mineral would be wet-ground to a very small particle size -for use in toners requiring smaller particle size and lower melting points for high speed printing operations.

    Abstract translation: 用于电子照相术的干燥调色剂组合物包括粘合剂树脂,着色剂和云母族矿物。 云母族矿物为墨粉组合物提供润滑性和更好的流动性。 云母组矿物是湿磨的,并且可以用硬脂酸钙涂覆以减少打印机,复印机或传真机操作期间产生的静电。 云母族矿物和硬脂酸钙混合物包含90%重量或更多的云母族矿物和10%(重量)或更少的硬脂酸钙。 涂覆有硬脂酸钙的云母族矿物或云母族矿物质占调色剂组合物重量的约零点至约15%。 由具有或不具有硬脂酸钙的云母族矿物形成的润滑剂和流动剂可以作为后添加剂混合到常规干燥调色剂中。 将云母组矿物湿法研磨至非常小的粒度 - 用于需要较小颗粒尺寸和较低熔点的调色剂用于高速印刷操作。

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