Powdered extract from resin produced by the Lac bug, a scale insect that is also the source of natural shellac, native to southern Asia.
Best on protein fibres. Lac produces red, crimson and burgundy tones similar to Cochineal but warmer. No mordant is required although they will extend the colour range. Use at 15-20% WOF for medium shades.
TO USE: soak overnight in cold water with 5% Cream of Tartar to WOF. Simmer 15 minutes, cool and strain. Add more water if necessary then enter the fibre and simmer for 45 minutes. The dyebath will yield several more dips in softer shades.