知搜-全球专利检索

  1. 登录
  2. 注册
发明公开
CN107450290A 白色干油墨经粉碎调色剂组合物及其制剂 有权

白色干油墨经粉碎调色剂组合物及其制剂
摘要：
本发明提供了制造白色干油墨经粉碎调色剂的装置和方法，所述白色干油墨经粉碎调色剂包括树脂和在双螺杆挤出机中与树脂熔融混合的具有100-350nm平均尺寸的15％-45％TiO2颜料，得到挤出混合物。挤出混合物在流化床喷射磨中粉碎。小于5微米的经粉碎的挤出混合物的细粒可通过分级从经粉碎的挤出混合物中去除，留下具有6-12微米的平均尺寸的经粉碎颗粒。经粉碎颗粒在混合器中与包括二氧化硅和ZnSt的表面添加剂共混，并且白色干油墨经粉碎调色剂具有5至50μC/克的显影剂电荷、以及在至多1.2mg/cm2的调色剂质量/单位面积(TMA)下至少75的亮度(L*)。
摘要（英）：

An apparatus and method of manufacturing a white dry ink pulverized toner including a resin and 15%-45% TiO2 pigment having a mean size of 100-350 nm melt mixed with the resin in a twin screw extruder resulting in an extruded mix. The extruded mix is pulverized in a fluid bed jet mill. Fines of the pulverized extruded mix less than 5 microns may be removed from the pulverized extruded mix by classification leaving pulverized particles having a mean size of 6-12 microns. The pulverized particles are blended in a mixer with surface additives including silica and ZnSt, and the white dry ink pulverized toner has a developer charge between 5 and 50 mumC/gram and a Lightness (L*) of at least 75 at a toner mass per unit area (TMA) of at most 1.2 mg/cm 2 .

公开/授权文献
0/0