Abstract: The developer for electrostatic photography according to the present invention comprises toner particles containing a thermoplastic resin and a colorant dispersed in an electrically insulating carrier having a melting point above room temperature wherein the thermoplastic resin is insoluble in the electrically insulating carrier at a temperature below the melting point of the electrically insulating carrier but becomes solvated with the electrically insulating carrier at a temperature above the melting point of the electrically insulating carrier. The present invention provides a developer for electrostatic photography, which enables to reduce the emission of vapor, to carry out a fixing treatment at a higher rate, to reduce the amount of energy required for fixing treatment and to create a high-quality image even after repeated use of the developer.

Abstract: A liquid developer for electrophotography is disclosed, which comprises a carrier, a charge director contained in the carrier, and toner particles dispersed in the carrier and having a volume-average particle diameter of from 0.5 .mu.m to 5 .mu.m, wherein the toner particles comprises a thermoplastic resin substantially insloluble in the carrier at a temperature used for development, a colorant dispersed in the resin, and a charge control agent. A process for producing the liquid developer, and a process for forming an image are also disclosed. Thereby, a liquid developer for electrophotography having good toner electrification characteristics and satisfactory charge stability is obtained.

Abstract: A liquid developer for electrophotography is disclosed, which comprises a carrier, a charge director contained in the carrier, and toner particles dispersed in the carrier and having a volume-average particle diameter of from 0.5 .mu.m to 5 .mu.m, wherein the toner particles comprises a thermoplastic resin substantially insoluble in the carrier at a temperature used for development, a colorant dispersed in the resin, and a charge control agent. A process for producing the liquid developer, and a process for forming an image are also disclosed. Thereby, a liquid developer for electrophotography having good toner electrification characteristics and satisfactory charge stability is obtained.

Abstract: A liquid developer for electrophotography comprising a carrier liquid having dispersed therein toner particles containing a binder resin and a colorant, wherein said carrier liquid contains at least one ether compound selected from compounds represented by formula (I) and compounds represented by formula (II):R.sub.1 --O(C.sub.n H.sub.2n O).sub.x --R.sub.2 (I)R.sub.3 --O--R.sub.4 (II)wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4, which may be the same or different, each represent an alkyl group, an alicyclic alkyl group, an aryl group, or an aralkyl group; n represents an integer of from 4 to 8; and x represents 1 or 2. The developer requires no heating even in winter and is less vaporized and less dangerous owing to the low solidifying point and low vapor pressure of the carrier liquid. The developer stably exhibits satisfactory charging properties. The developer is suited to high-speed copying.

Abstract: A method for forming images including the steps of: developing an electrostatic latent image formed on a latent image carrying member with a liquid developer including a carrier liquid; and bringing a toner image thus formed into contact with an oil absorbent selected from the group consisting of a network-forming oil-absorbent material and a gel-swelling oil-absorbent material, to remove the carrier liquid.

Abstract: A liquid developer for use in electrostatic photography comprises toner particles, each containing a resin and a colorant dispersed in a carrier liquid. The carrier liquid comprises at least one ether compound derived from ethylene glycol or propylene group and represented by the following general formulaR.sub.1 --O(C.sub.n H.sub.2n O).sub.x R.sub.2wherein R.sub.1 and R.sub.2 may be the same or different and represent an alkyl group or an aryl group, n is an integer of 2 or 3, and x is an integer of 1 to 3. The ether compound is present in the carrier liquid in the range of from 5 to 100 wt %.