LIQUID DEVELOPER FOR USE IN ELECTROSTATIC IMAGE
PURPOSE:To obtain a developer capable of forming a high density image easily, by dispersing resin particles insoluble in a liquid carrier, and a resin obtained by suspension polymerizing in the liquid carrier into the liquid carrier of a petroleum type aliphatic hydrocarbon, and adding a colorant to...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE:To obtain a developer capable of forming a high density image easily, by dispersing resin particles insoluble in a liquid carrier, and a resin obtained by suspension polymerizing in the liquid carrier into the liquid carrier of a petroleum type aliphatic hydrocarbon, and adding a colorant to one of the resins. CONSTITUTION:Resin particles (component A) substantially insoluble in a liquid carrier, and a resin (component B) obtained by suspension polymerization in the liquid carrier are dispersed into the liquid carrier of a petroleum type hedrocarbon in 0.5-5 A/B weight ratio, and a colorant is added to one of the components A and B. For the component A, for example, a resin contg. >=70mol% styrene, epoxy resin, phenolic resin, etc. are used, and for the component B, for example, a resin obtained by graft polymerization in an aliphatic hydrocarbon solvent, and the like resin are used. |
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