Electrophotographic varnish
    3.
    发明授权

    公开(公告)号:US10197931B2

    公开(公告)日:2019-02-05

    申请号:US15520179

    申请日:2014-10-24

    申请人: HP Indigo B.V.

    摘要: A transparent electrophotographic varnish composition comprises a charge adjuvant and inorganic filler particles. A method of manufacturing an electrophotographic varnish composition comprises heating a thermoplastic resin mixture until the resin has melted; cooling the resin mixture to form resin particles; contacting the resin particles with a charge adjuvant and inorganic filler particles to form composite particles or a mixture of particles; and combining the composite particles or particulate mixture with a carrier fluid to form the electrophotographic varnish composition. A liquid electrophotographic printing system and a print substrate are also provided.