Pearlescent pigments have relatively stable chemical properties and are not toxic or corrosive. They can be applied to all printing substrates, publications, home decoration materials, clothing and other materials, including food packaging, without causing harm to the human body. Pearlescent pigments need to be pre dispersed in ink and the effect of shear force should be minimized during the dispersion process. However, due to their specific gravity, pearlescent pigments are prone to sedimentation in the ink, resulting in lighter colors during printing. To avoid this situation, appropriate stirring should be carried out during the printing and brushing process to prevent the sedimentation of pearlescent pigments and achieve the expected effect.