Mordant with 1 oz. Copper sulphate. Boil for 1 hour. Take out silk and add 2-1/2 oz. madder, 1 oz. fustic chips, and boil for 1 hour.
(18) RED (1 lb.)
Dissolve 1 oz. Tannic Acid in hot water. Enter silk and leave for 24 hours, stirring occasionally. Rinse well in two waters. In a fresh bath, put 4 oz. cochineal. Enter silk. Bring to boil and let blue colour develop. Lift, and add 1 oz. cochineal & 1 oz. tin. Re-enter silk & boil well. Wash in soap.
GLOSSARY
Adjective Dyes. Dyes which require mordant.
Alizarin. The chief colouring principle of madder. It is also the name for an extensive series of chemical colours produced from anthracene, one of the coal tar hydrocarbons discovered in 1868.
Aniline. Discovered 1826 (anil. Span. indigo). First prepared from indigo by means of caustic potash, found in coal, 1834. Manufactured on a large scale after Perkin's discovery of mauve in 1856.
Annatta. (Annotto, Arnotto, Roucou.) A dye obtained from the pulp surrounding the seeds of the Bixa orellana; chiefly used in dyeing silk an orange colour, but is of a fugitive nature.