WATER-BASED PIGMENT INKS
    31.
    发明公开

    公开(公告)号:US20230242781A1

    公开(公告)日:2023-08-03

    申请号:US18040725

    申请日:2021-12-16

    IPC分类号: C09D11/322 B41J2/14 B41M5/00

    摘要: The present invention relates to a printing ink composition comprising a polymer selected from a poly(styrene-maleic acid) co-polymer having an acid number of ≥225 mg KOH/g, a poly(styrene-maleamic acid) co-polymer having an acid number of ≥225 mg KOH/g or a combination thereof, wherein the co-polymer is a lithium, sodium, potassium, ammonium or quaternary ammonium salt or combinations thereof. The printing ink composition is suitable for directly printing onto non-porous substrates particularly without the need for a chemical primer layer or chemical pre-treatment.