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    PHASE CHANGE INKS AND PROCESS FOR THE PREPARATION THEREOF
    45.
    发明专利
    PHASE CHANGE INKS AND PROCESS FOR THE PREPARATION THEREOF 未知

    公开(公告)号：CA2487761A1

    公开(公告)日：2005-05-25

    申请号：CA2487761

    申请日：2004-11-18

    Applicant: XEROX CORP

    Inventor： SMITH PAUL F ,  BOILS-BOISSIER DANIELLE C ,  BEDFORD CHRISTINE E ,  BRETON MARCEL P ,  WONG RAYMOND W ,  GARDNER SANDRA J ,  DRAPPEL STEPHAN V ,  MAYO JAMES D

    IPC: C09D11/00 ,  C09D11/02

    Abstract: Phase change ink compositions comprising (a) an ink carrier comprising a monoamide and a tetra-amide, and (b) pigment particles having oxygen-containing functional groups on the surfaces thereof. Also, processes for preparing a phase change ink which comprise (a) melting a tetra-amide which is solid at about 25.degree.C; (b) admixing with the molten tetra-amide pigment particles having oxygen-containing functional groups on the surfaces thereof; (c) maintaining the mixture of pigment and tetra-amide at a temperature of at least about 100.degree.C and at a temperature of no more than about 200.degree.C for a period sufficient to enable the molten tetra-amide to wet the pigment particle surfaces; (d) subsequent to wetting of the pigment particle surfaces with the molten tetra-amide, adding to the mixture a monoamide; (e) subsequent to addition of the monoamide, subjecting the resulting mixture to high shear mixing; and (f) subsequent to subjecting the mixture to high shear mixing, optionally adding to the mixture additional ink ingredients.

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