257. Royal Blue

257.    Royal Blue. Into a vessel of cold water add 2 pints nitrate of iron; then take 1 pint water and 1/2 pint of hydrochloric acid, and add to it 3 ounces crystals of tin; when dissolved, add this (or 1 pint chloride of tin) to the vessel containing the iron; stir well and work the goods in it immediately for half an hour. Into another tub dissolve 8 ounces of the ferrocyanide, and add to it 2 fluid ounces of sulphuric acid; the goods are wrung out of the iron solution, and put directly into this second vessel, and worked for 15 minutes; then wash out in cold water with 2 ounces of alum dissolved in it, and finish. If the shade is not sufficiently deep, before washing them in the alum water, they may be passed through the iron solution, and the ferrocyanide solution, working in each the same time as at first, only adding 2 ounces more ferrocyanide before passing the goods through the second time; then finish as before stated. Deeper shades are obtained by using more iron and tin, or by repeating the dips. Some wash out the iron solution in water before going into the ferrocyanide, and also wash it again in clean water before putting back into the iron ; the shade will not be so deep, but there is less risk of an unequal color.

258. Rich Deep Blue Dye for Silk Goods

258.    Rich Deep Blue Dye for Silk Goods. To dye 5 pounds of silk goods, add to the water required to work the silk, 2 pints chloride of iron and 1 pint double muriate or chloride of tin; work in this half an hour; lift, and work in a solution of 8 ounces ferrocyanide of potassium; if the color be not deep enough, repeat the operation through both solutions; then wash out in water in which 2 ounces of alum have been dissolved.

259. Deep Blue Dye for Woolen Goods

259.  Deep Blue Dye for Woolen Goods. To dye 5 pounds woolen goods, add to the requisite quantity of water, 2 pints chloride of iron and 1 pint chloride of tin; work in this for half an hour; lift, and work half an hour in a bath with 4 ounces of the ferrocyanide. If the color is required to be deeper, repeat this through the same stuff, adding 2 ounces more ferrocyanide; then wash out in cold water, and dry.

260. Lavender

260.    Lavender. Add 1 pint plumb liquor (see No. Ill) to sufficient water to work the goods easily; stir well and work in this for 20 minutes, then wash in cold water and dry. A darker or lighter tint is obtained by using more or less plumb liquor.

If a blue tint is required, add to the solution before putting in the goods, 2 or 3 drops either of sulphate, or of extract of indigo. (See Nos. 98 (To make Sulphate of Indigo) and 99).

261. Fine Lavender

261.    Fine Lavender. Into a vessel of water as hot as the hand can bear, dissolve a little white soap - enough to raise a lather; then add 1 gill archil liquor, and work the goods for 15 minutes, wring out and dry. To obtain a redder tint, boil 1 ounce cudbear, and use instead of the archil liquor. A still redder tint is attainable by leaving out the soap altogether.