LIQUID ELECTROPHOTOGRAPHIC INK COMPOSITION

    公开(公告)号:US20230059288A1

    公开(公告)日:2023-02-23

    申请号:US17392950

    申请日:2021-08-03

    IPC分类号: C09D11/037 C09D11/10

    摘要: A liquid electrophotographic (LEP) ink composition is described. The composition comprises: a pigment particle having an acidic surface modification; a basic charge director selected from:(i) a polymeric amine dispersant having a Total Base Number of at least 100 mg KOH/gram material, and (ii) a sulfosuccinate salt of the general formula MAn, wherein M is a metal, n is the valence of M, and A is an ion of the general formula (I): [R1—O—C(O)CH2CH(SO3)C(O)—O—R2]− (I); and a liquid carrier. The ink composition does not include a thermoplastic resin. Also described are a method of producing the ink composition, and a method of printing using the ink composition.