Liquid developer and image forming method

摘要

A liquid developer includes a carrier liquid having insulation property, colored particles, and an organic high molecular compound. The organic high molecular compound is dissolved in the carrier liquid. The organic high molecular compound includes elastomer A that is a styrene-butadiene-based elastomer not having an acid group or a basic group and elastomer B that is a styrene-based elastomer having an acid group or a basic group. A content of the elastomer A in the liquid developer is 6% by mass or more and 8% by mass or less, and a content of the elastomer B in the liquid developer is 0.4% by mass or more and 0.8% by mass or less. The colored particles include aniline black.

主权项

1. A liquid developer comprising:
a carrier liquid having electrical insulation property; colored particles; and an organic elastomer, wherein the organic elastomer is dissolved in the carrier liquid, the organic elastomer includes:
elastomer A having a repeating unit derived from styrene or a styrene derivative and a repeating unit derived from butadiene, and not having an acid group or a basic group; andelastomer B having a repeating unit derived from styrene or a styrene derivative, and having an acid group or a basic group, a content of the elastomer A in the liquid developer is 6% by mass or more and 8% by mass or less, a content of the elastomer B in the liquid developer is 0.4% by mass or more and 0.8% by mass or less, and the colored particles include aniline black.