公开(公告)号：WO1995000883A1

公开(公告)日：1995-01-05

申请号：PCT/EP1994001772

申请日：1994-05-30

Applicant: AGFA-GEVAERT NAAMLOZE VENNOOTSCHAP ,  TAVERNIER, Serge, Martin ,  OP DE BEECK, Werner, Jozef ,  GHEKIERE, Jean-Pierre, Albert ,  VERVOORT, Michel, Remi

Inventor： AGFA-GEVAERT NAAMLOZE VENNOOTSCHAP

IPC: G03G09/00

CPC classification number: G03G9/0926 ,  G03G9/08711 ,  G03G9/08755 ,  G03G9/08797 ,  G03G9/09 ,  G03G9/09733 ,  G03G9/09775 ,  G03G13/20

Abstract: A dry toner powder of which the powder particles are electrostatically or magnetically attractable and suitable for use in the satin-look development of electrostatic charge images or magnetic patterns and wherein the composition of said powder particles includes at least one substantially colourless transparent thermoplastic (fusible) resin P and at least one substantially colourless compound Q, characterized in that said at least one resin P and said at least one compound Q when after been mixed in molten state followed by solidification form a light-scattering composition that under the measurement conditions of the test R has an optical absorption value of more than 0.10 but not more than 1.0, said resin(s) P and compound(s) Q being present in said toner in a weight ratio range P/Q from 5:1 to 1:5, and the weight ratio of P + Q with respect to the total weight of the toner is equal to or larger than 25:100.

Abstract translation: 一种干粉调色剂，其粉末颗粒是静电或磁吸引的，适用于静电荷图像或磁性图案的缎面显影，其中所述粉末颗粒的组成包括至少一种基本上无色的透明热塑性塑料（易熔体） 树脂P和至少一种基本上无色的化合物Q，其特征在于所述至少一种树脂P和所述至少一种化合物Q在熔融状态下混合后进行固化，形成光散射组合物，其在 试验R的光吸收值大于0.10但不大于1.0，所述树脂P和化合物Q以5:1至1:5的重量比P / Q存在于所述调色剂中 ，并且P + Q相对于调色剂的总重量的重量比等于或大于25:100。

公开(公告)号：WO1994027192A1

公开(公告)日：1994-11-24

申请号：PCT/EP1994001321

申请日：1994-04-25

Applicant: AGFA-GEVAERT NAAMLOZE VENNOOTSCHAP ,  TAVERNIER, Serge, Martin ,  OP de BEECK, Werner, Jozef ,  VAN WUNSEL, Danny, Frans ,  VERVOORT, Michel, Remi

Inventor： AGFA-GEVAERT NAAMLOZE VENNOOTSCHAP

IPC: G03G09/087

CPC classification number: G03G9/09783 ,  G03G9/0819 ,  G03G9/0823 ,  G03G9/08759 ,  G03G9/08797 ,  G03G9/097 ,  G03G9/0975 ,  G03G9/09766

Abstract: A dry toner powder the toner particles of which are triboelectrically negatively charged and are suited for development of an electrostatic charge pattern, wherein said toner particles contain: (1) one or more triboelectrically negatively chargeable thermoplastic resins serving as binder having a volume resistivity of at least 10 OMEGA -cm, and (2) at least one substance having a volume resistivity lower than the volume resistivity of said binder, and wherein said substance(s) (2) is (are) capable of lowering the volume resistivity of said binder by a factor of at least 3.3 when present in said binder in a concentration of 5 % by weight relative to the weight of said binder, and wherein said toner powder containing particles including a mixture of said ingredients (1) and (2) under triboelectric charging conditions is capable of obtaining an absolute median (q/d) charge/diameter value (x) lower than 10 fC/10 mu m but not lower than 1 fC/10 mu m, and said toner powder under the same triboelectric charging conditions but free from said substance(s) (2) then has an absolute median q/d value (x) at least 50 % higher than when said substance(s) (2) is (are) present, and wherein the distribution of the charge/diameter values of the individual toner particles is characterized by a coefficient of variation nu

Abstract translation: 一种干调色剂粉末，它们的调色剂颗粒是摩擦带电荷的并且适合于开发静电荷图案，其中所述调色剂颗粒包含：（1）一种或多种具有体积电阻率为的粘合剂的摩擦带电性带负电荷的热塑性树脂 至少10 13 OMEGA-cm，和（2）体积电阻率低于所述粘合剂的体积电阻率的至少一种物质，并且其中所述物质（2）能够降低体积电阻率 相对于所述粘合剂的重量，以所述粘合剂的5重量％的浓度存在于所述粘合剂中时所述粘合剂的至少为3.3倍，并且其中所述含有所述成分（1）和（2）的混合物的颗粒的调色剂粉末 ）能够获得低于10fC /10μm但不低于1fC /10μm的绝对中值（q / d）电荷/直径值（x），并且所述调色剂粉末在相同 摩尔比充电条件但不含所述物质（2）的绝对中值q / d值（x）比所述物质（2）存在时高至少高50％，其中 单个调色剂颗粒的电荷/直径值的分布的特征在于变异系数nu <0.33。