Home › The Art Of Dyeing › French and Pearl White

French and Pearl White

Dissolve in hot water sufficient white soap to dissolved, add this (or 1 pint chloride of tin) make a lather; then add 1/2 fluid ounce archil to the vessel containing the iron; stir well liquor; work the goods for 10 minutes, and and work the goods in it immediately for half wash out. A little cudbear may be used inan hour. Into another tub dissolve 8 ounces stead of archil, less or more, according to the of the ferrocyanide, and add to it 2 fluid ounces shade required. of sulphuric acid; the goods are wrung out of 264. French and Pearl White. Put the iron solution, and put directly into this 1 fluid ounce plumb liquor (see No. 111) into second vessel, and worked for 15 minutes; a vessel of cold water; work the goods in it then wash out in cold water with 2 ounces of for 10 minutes; wash out and dry. For these alum dissolved in it, and finish. If the shade shades the goods must be perfectly white is not sufficiently deep, before washing them (see No. 233) previous to dyeing. in the alum water, they may be passed through 265. Weld Yellow. Work the silk for the iron solution , and the ferrocyanide solution, an hour in a solution of alum, about 1 pound working in each the same time as at first, only to the gallon; wring out and wash in warm adding 2 ounces more ferrocyanide before water. Boil 2 pounds weld, strain the liquor, 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. 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.