ORANGES: (1) Full Lead Orange (60 lb.).—Boil 12 lb. sugar of lead in 12 gal. clear lime-water, till dissolved ; add this to enough cold water. Work yarns 5 turns, and wring. Dissolve 4 lb. bichromate of potash, and add this to cold water. Work yarns 5 turns, and wring. Repeat this process twice in the cold liquors, wringing after each time. Get a clear lime-water up to the boil, and give the yarns 5 turns in it, working very quickly. It is very important that the lime-water should be boiling, to keep the yarns level. Wash off in warm water with a little soap, and dry.
This colour, like all others in which lead is an ingredient, will be darkened and spoiled, if exposed to fumes of sulphuretted hydrogen.
(2) Annatto Orange (60 lb.).—Boil 6 lb. concentrated annatto with 2 lb. soap, and 2 lb. common soda, till completely dissolved ; add this to boiling water. Work the yarns 5 turns ; wash in cold water, and dry.
This colour may be modified by topping with small quantities of magenta, &c.
(3) Aniline Orange (60 lb.).—Boil 3 lb. tannic acid, and add the solution to warm water. Work the yarns 5 turns, and wring. Add 3 qts. nitro-muriate of tin to enough cold water, and mordant in the mixture. Wash well in cold water, with a little soap in the last water. Dissolve 12 oz. aniline orange, and add the solution to warm water. Give 5 turns, wash, and stove-dry.
(4) Purple (10 lb.).—Prepare in stannate of soda at 10° Tw. ; pass in dilute sulphuric acid at 2° Tw. ; and give 2 washings in clear cold water. Fill up a tub with 30 gal. logwood liquor ; give 4-5 turns ; lift ; and add 4 qts. alum solution, and pint double muriate of tin ; re-enter, and give 3-4 more turns. Wash off; and prepare another beck with 30 gal. logwood liquor, and 10 gal. peach- or sapan-wood liquor ; re-enter, and give 3-4 turns ; add piut purple spirit, and 4 qts. alum-water. Give 5-6 turns ; wash, and dry.