Abstract: A toner or developer for electrostatic images including a carrier liquid and insoluble marking particles. The carrier liquid comprises or includes a polybutene. The polybutene may be present in a range of 20 to 98 percent by weight. The carrier liquid can also includes one or a blend of other carrier liquids selected from aliphatic hydrocarbons, aromatic hydrocarbons, chlorinated solvents, silicone fluids and vegetable oils. The insoluble marking particle is present in the range of 2 to 40 percent by weight of the toner or developer.

Abstract: A toner or developer for electrostatic images including a carrier liquid and insoluble marking particles. The carrier liquid comprises or includes a polybutene. The polybutene may be present in a range of 20 to 98 percent by weight. The carrier liquid can also includes one or a blend of other carrier liquids selected from aliphatic hydrocarbons, aromatic hydrocarbons, chlorinated solvents, silicone fluids and vegetable oils. The insoluble marking particle is present in the range of 2 to 40 percent by weight of the toner or developer.

Abstract: A deposition material for an electrostatic deposition apparatus such as an ink for an electrostatic ink jet printer, the material comprising a carrier liquid having insulative properties, a charging agent which is soluble in the carrier liquid, and a charge augmenting additive which is soluble in the carrier liquid. The charge augmenting additives are carrier soluble materials that assist in the dissociation of the charging agent. Generally it is found that they are materials which contain nitrogen groups, e.g. amine functionality.

Abstract: A solid ink jet ink composition which is suitable for hot melt applications having a carrier having an electrical resistivity of at least 10.sup.8 Ohm.cm, insoluble marking particles and a particle charging agent dispersed in it. The marking particle may be a pigment, an insoluble dyestuff, a polymer or mixture thereof. The particle charging agent may be a metal soap, a fatty acid, lecithin, an organic phosphorous compound, a succinimide, a sulphosuccinate, petroleum sulphonates, a soluble or partially soluble resin such as a modified rosin ester, an acrylic, a vinyl a hydrocarbon or a mixture thereof. The solid ink jet ink composition may further include a viscosity controller. The ink may be capable of being heated to 155.degree. C. and have at that temperature a viscosity of between 5 to 150 cps.