Eco-solvent ink.

Solvent-based wide-format ink with slower, less aggressive carriers than true solvent, so it prints on uncoated vinyl and banner stock without the extraction and curing setup hard solvent demands. It still outgasses, and a print needs time to finish doing that before lamination, or the laminate seals the solvent in. It is one of three wide-format chemistries a buyer chooses between, with latex and UV-curable, and media compatibility decides that choice more than sticker price does.