Inner Mongolia Xianhong Science Co., Ltd.

Kwan Yeung Chiu

Kin Man Ho

Chun Ho Yam

Kwai Sang Ng

Siu Sun Chan

This invention relates to a white inkjet ink composition having improved compatibility of functional polymer-stabilized titanium dioxide with binder resins, resulting in significantly slowing down the sedimentation rate, resisting clogging nozzles upon jetting, and enhancing the lightness of the ink coating. The white inkjet ink composition comprises a white colorant; one or more binder resins; one or more compatibilizers; an ink solvent; and optionally one or more additives. The white colorant is modified with a functional copolymer comprising an acid group, such as such as styrene-maleic anhydride, to form a modified white colorant. The presence of the one or more compatibilizers significantly improve the compatibility of the modified white colorant, such as styrene-maleic anhydride stabilized titanium dioxide, with the one or more binder resins.

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Hong Kong, China

Kwan Yeung Chiu