Chlorophyllin is a beautiful green powder derived from the extraction of chlorophyll from the leaves of plants. It is a well known natural dye used in foods, cosmetics, and in fabric dyeing processes amongst many other applications. It is a very strong dye so you don't need very much - 5g is sufficient to dye 200g hanks of wool to a dark to medium green colour. Obviously you should always experiment to get your desired shade before adding expensive wool yarn or fabrics.
Shades obtained can vary from olive green through to dark to pale bluey/sea green green colours, and is very stable and colourfast. It can be used to pre-dye or even over-dye to get combinations of colour.
Chlorophyllin provides a rich colour. To use in fabric or wool dyeing, mix a paste with 5g and a small amount of warm water, and add the paste to your dye pot. Add the wetted, mordanted fibre and gently simmer for 45-60 minutes stirring occasionally. Leave to cool, and wash.
Pack size supplied is 20g