They used natural plant dyes and minerals such as graphite ground with water and applied with an ink brush.

For many years he had a fruitful partnership with Else Halling, aiming to find a useful range of plant dyes for dying wool from spelsau.

By using tools made from boars' teeth and combs of sharpened bones whose tips were dipped in sooty pigment or plant dyes.

The creature had painted itself orange and bright blue with plant dyes.

Recipes for plant dyes tested and tried over generations have produced distinctive colours for wool, tweed and tartan.

He tried to tattoo them with plant dyes, and now ink plants bloom and grow all over his hands.

Cappie actually slapped me when I whispered Dorr might have tried a sip of the plant dyes too.

Over and over, he showed his samples, and gave his speech about hand looming and plant dyes.

The majority of plant dyes, however, also require the use of a mordant, a chemical used to "fix" the color in the textile fibers.

Many of the plant dyes are unstable even to visible light.