(For 100 lbs.) 6 lbs. of Tartar are thrown into the water when warm. The bath is stirred briskly and when hot ½ lb. powdered cochineal is added and well mixed. Then 5 lbs. of clear solution of Tin is carefully mixed in. When it is boiling the wool is put in and moved briskly. After 2 hours it is taken out, aired and washed.
The second bath. When the water is nearly boiling 5¾ lbs. of powdered cochineal is put in. A crust will form on the surface which will open in several places. Then 13 to 14 lbs. of solution of tin is poured in. After this is well mixed, the wool is entered and stirred well. Boil for an hour, then wash and dry.
These two processes can be done together with good result. The colour can be yellowed by fustic or turmeric. More tartar in the second bath increases the colour. The scarlet may be brightened by common salt. Alum will change the scarlet to crimson, the wool being boiled in a solution of it for one hour.
6). Crimson for Wool.
Mordant with 2½ oz. alum and 1½ oz. tartar for every lb. of wool. Then dye with 1 oz. cochineal. Solution of tin is sometimes added. Also salt.
7). Violet for Wool.
Mordant with 2 oz. alum for 1 lb. wool. Dye with 1 oz. cochineal and 1 oz. of solution of iron in which the wool is kept till the shade is reached.
8). Scarlet with Cochineal, for Wool.
(For 100 oz. clean wool). Put 6 oz. Oxalic acid, 6 oz. Stannous Chloride (Tin Crystals), 8 oz. powdered cochineal in a bath containing about half the quantity of water required to cover wool. Boil 10 minutes, then add sufficient water to cover wool. Enter the wool, work well in the dye and boil for ¾ hour, after which take out the wool, wash and dry.
9). Purple, for Wool.