... , inks,coatings Ruichem Y170-01---Strong and brilliant bluish red pigment, Naphthol Red F5RK, High reansparent, Universal type. Mainly for coatings, also for inks ... and textile. Ruichem Y170-02---Strong and brilliant mid-shade red pigment ,Naphthol Red F3RK, Semi-transparent ,Good light fastness. Mainly for coatings ...