I’ve been having a little play with food colouring dyeing of silk cut coccon and rods.
Take 3 cups of water and 1/4 cup of white vinegar plus a few drops of food coliuring. Place your rods and / or cocoons into the solution, cover and microwave for 2 minutes, stir then microwave for a further 2 mins.
Lift carefully from the water as they will be soft and could be squished out of shape. Leave on a rack to dry. As you’re using food colouring it’s safe to use normal bowls and your kitchen mircowave.
If you remove the sericin from the rods you can actually peel the layers of silk apart and felt it into your work. With the gum removed the cocoons will collapse into a silk blob which may also be used in felt making. Leave them whole and stitch into them and if you have any silk paints in the house you can use those too.