SPIRIT COLOUR STYLE, OR APPLICATION style differs from the steam style, because the colours employed contain so large a proportion of acid mordants, chiefly the chlorides of tin (or, as they are technically called, "spirits"), that steaming would be impracticable. After printing, the goods are carefully dried, aged for a few hours, rinsed, washed with cold water, and are then ready for drying off. The colours are bright, but, as a rule, not enduring ; and the cloth is often weakened by the action of the strong mordants. The colours, as will be seen, hear a considerable resemblance to those employed in the steam style. The following are exam des : Block Blue.—Water, 1 gal.; yellow pruesiate, 1 lb. ; alum, 6 oz.; starch, 20 oz. Boil, and after letting cool down to 43° (110° F.), add nitrate of iron at 80° Tw., 15 oz.; and oxyruuriate of tin at 120° Tw., the same quantity.
Brown.—Berry liquor at 80° Tw., 1 gal. ; light British gum, 2 lb. Boil, and add tin crystals, 1 lb., and of the pink colour and the purple colour given below, 2 qt. each.
Chocolate.—Sapan liquor at 8° Tw., 3 qt. ; logwood liquor at 10° Tw., 2 qt. ; bark liquor at 13° Tw., 1 qt. ; starch, 3 lb. Boil ; when cooled down to 43° (110° F.), add further oxymuriate of tin at 100° Tw., 1 pint ; nitrate of copper at 80° Tw., 1 pint ; and olive oil, 1 pint.
Green.—Mix the blue and the yellow colours here given, according to shade.
.Pink.—Sapan liquor at 14° Tw., 1 gal. ; sal ammoniac, / lb. ; gum water, at 6 lb. per gal., 1 gal.; oxymuriate of tin at 120° Tw., 1 pint.
Special Pink (for blocking in madder-work).—Sapan liquor at 10° Tw., 4 gal. ; pink salt (i. e. double chloride of tin and ammonium), 9 lb. ; sal ammoniac, 3 lb. ; blue-stone, 2 lb. ; oxalic acid, 51 oz.; water, 1 pint ; gum senegal water (6 lb. per gal.), 4i gal.; oxymuriate of tin at 120° Tw., 11 qt.
Purple.—Logwood liquor at 8° Tw., 1 gal. ; water, 1 gal. ; copperas, 10 oz.; starch, 2 lb. Boil, and add protochloride of iron at 80° Tw., 1 pint ; oxymuriate of tin at 120° Tw., 1 pint.
.Red.—Sapan liquor at 4° Tw., 3 gal.; sal ammoniac, 1 lb.; verdigris, 1 lb. ; starch, 43 lb. Boil, and add when cold, pink salt, 5 lb. ; oxalic acid, 1 lb.
Yellow.—Berry liquor at 10° Tw., 1 gal. ; alum, 8 oz. ; starch, 1 lb. Boil, and add double muriate of tin at 120° Tw., 1 pint.
Such of the coal-tar colours as can bear the presence of acids, e. g. acid rubine, may, if desired, be applied in spirit styles.