IMPROVED TONER USED IN COMPOSITION FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, MAKING THEREOF AND LIQUID COMPOSITION USING IMPROVED TONER

摘要

A liquid composition for developing latent electrostatic images comprising toner particles associated with a pigment dispersed in a nonpolar liquid, wherein the toner particles are formed with a plurality of fibers or trendrils from a thermoplastic polymer and carry a charge of a polarity opposite to the polarity of the latent electrostatic image. The polymer is insoluble or insolvatable in the dispersant liquid at room temperature. The toner particles are formed by plasticizing the polymer and pigment at elevated temperature and then either permitting a sponge to form and wet-grinding pieces of the sponge or diluting the plasticized polymer-pigment while cooling and constantly stirring to prevent the forming of a sponge while cooling. When cool, the diluted composition will have a concentration of toner particles formed with a plurality of fibers.