What is the term for glittery ink that changes color with viewing angle?

What is the term for glittery ink that changes color with viewing angle?

• A. UV Ink
• B. Glitter Ink
• C. Holographic Ink
• D. Optically Variable Ink

Answer: (D)

Color shifts with viewing angle come from optical variable effects. The term for this kind of ink is optically variable ink. It uses microscopic structures or pigments that produce different colors when you tilt or rotate the surface, creating a glittery, color-changing look. This is different from UV ink, which simply glows under ultraviolet light, and glitter ink, which is just sparkly without a angle-based color change. Holographic ink can also look different as you move it, but the standard label for inks that deliberately change color with viewing angle is optically variable ink.

Color shifts with viewing angle come from optical variable effects. The term for this kind of ink is optically variable ink. It uses microscopic structures or pigments that produce different colors when you tilt or rotate the surface, creating a glittery, color-changing look. This is different from UV ink, which simply glows under ultraviolet light, and glitter ink, which is just sparkly without a angle-based color change. Holographic ink can also look different as you move it, but the standard label for inks that deliberately change color with viewing angle is optically variable ink.