Process for producing liquid developer for electrostatic photogr

Details Process for producing liquid developer for electrostatic photogr Process for producing liquid developer for electrostatic photogr

1981-09-08

1983-05-17

Welsh, John D.

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Post imaging process, finishing, or perfecting composition...

430114, 430137, 430904, G03G 912

Patent

active

043840361

ABSTRACT:
A process for producing a liquid developer for electrostatic photography is disclosed. In the process, a dispersion of fine polymer particles in a non-polar solvent is mixed with a dye that is insoluble in said non-polar solvent and which is soluble in the monomer which is at least one component of the polymer. The polymer particles are then colored by removing from the dispersion a second solvent which dissolves the dye, is miscible with the non-polar solvent and which is capable of swelling at least part of the polymer in such a manner that said second solvent is present in said dye-containing polymer dispersion while the removal is continued.

REFERENCES:
patent: 3971659 (1976-07-01), Sato et al.

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