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US 9,753,389 B2Granted
Liquid developer
AssigneeKonica Minolta, Inc.
InventorsKeiko Momotani, Masahiro Anno, Naoki Yoshie
Life of this patent
Estimating the term…
Abstract
A liquid developer contains an insulating liquid and toner particles dispersed in the insulating liquid. The toner particles have a resin and a coloring agent. The resin contains at least 10 mass % and at most 40 mass % of an aliphatic polyester resin and at least 60 mass % and at most 90 mass % of an aromatic polyester resin. The resin has an acid value not less than 20 mgKOH/g and not more than 100 mgKOH/g. A difference in acid value between the aliphatic polyester resin and the aromatic polyester resin is not less than 0 mgKOH/g and not more than 10 mgKOH/g.
Claims5
A liquid developer, comprising:
- an insulating liquid;
- and
- toner particles dispersed in said insulating liquid,
- said toner particles having a resin and a coloring agent,
- said resin containing at least 10 mass % and at most 40 mass % of an aliphatic polyester resin and at least 60 mass % and at most 90 mass % of an aromatic polyester resin,
- said resin having an acid value not less than 30 mgKOH/g and not more than 100 mgKOH/g, and
- a difference in acid value between said aliphatic polyester resin and said aromatic polyester resin being not less than 0 mgKOH/g and not more than 10 mgKOH/g.
4 more elements
Dependencies are inferred from the claim text.