WHITE INK

摘要

The present disclosure provides a white ink comprising an aqueous ink vehicle, a white colorant, and latex particles. The colorant can consist essentially of metal oxide particles present at from 2 wt % to 50 wt %, can have an average particle size from 100 nm to 1000 nm, and can have a high refractive index from 1.8 to 2.8. The latex can be present in the ink at from 2 wt % to 20 wt %, can have a glass transition temperature from 0° C. to 130° C., and can have a low refractive index from 1.3 to 1.6. The metal oxide particles and latex particles can be present in the white ink at weight ratio is from 6:1 to 1:3.

主权项

1. A white ink, comprising:
an aqueous ink vehicle; from 2 wt % to 50 wt % of colorant consisting essentially of metal oxide particles having an average particle size from 100 nm to 1000 nm; and from 2 wt % to 20 wt % of latex particles having a glass transition temperature from 0° C. to 130° C., wherein the metal oxide particles and latex particles are present in the white ink at weight ratio is from 6:1 to 1:3.