| 摘要 |
Liquid developer compositions for development of latent electrostatic images are disclosed. The electrostatic printing inks dry at ambient temperatures by penetration into paper leaving a continuous film having excellent rub resistance on the surface. The non-volatile, low viscosity inks comprise about 3-20% pigment and/or dye, about 5-35% of resinous particles having a size of 5 microns or less and having glass transition temperatures close to or below ambient temperature, said resinous particles being dispersed in the liquid carrier, 0-25% dispersing agent and about 25-90% non-volatile, high boiling organic liquid carrier and/or solvent.
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