Riso overprint effect

Risograph printing is a stencil-based duplication process from Japan that became a favourite of zine makers and independent poster printers. Each ink colour is printed in a separate pass, and where two colours overlap they mix into a third, which gives riso prints their distinctive, slightly unpredictable palette.

The Riso overprint effect imitates that process with two ink layers (Ink A and Ink B), each rendered as a screen. Misregistration shifts one layer slightly off the other, like a real print where the paper never lines up perfectly, and paper grain adds the soft texture of uncoated stock.