Dyeing photos

Cochineal on wool yarn
Originally uploaded by Altivo

Set of six additional photos from last week's dyeing experiments. This one shows cochineal on wool yarn, with color variations resulting from use of four different mordants. The mordanting compounds were, from top to bottom: potassium aluminum sulfate (alum), potassium dichromate (chrome), copper sulfate (copper), and stannous chloride (tin).

For the rest of the images, click here and use the thumbnails on the right of the linked screen to scroll through the list.