I started using the Chiba system in 2010 as a less toxic alternative to gum-bichromate printing; firstly with pork gelatine, then casein and later, fish gelatine. After 2013, I explored other alt-processes: cyanotype, argyrotype, solargraphy, and cuprotype. In 2023, I started to think about the Chiba approach with the use of plant proteins in alt-pigment printing process. Today, I continue to research plant protein alternatives and other greener processes such as zerochrome-SbQ. Later in 2026, I look forward to publishing more findings on plant protein-based printing using wheat, soy and other proteins.

I published an article on Alternativephotography.com in 2024, detailing the use of lupin protein in Chiba-based printing. You can download an updated version here: 2026 UPDATE–LUPIN-Sustainable Plant Proteins