ANILINE BLACK, WITH DESIGN IN WHITE, MADDER RED, AND CHROME OaANOE.—This process illustrates the manners in which aniline black may be combined with other colours.
For the madder red, is used a mordant of red liquor at 12° Tw., thickened with 2i lb. flour per gal. Cool, and add, per gal., 4 oz. tin crystals.
For the orange, dissolve nitrate of lead, 4,1 lb. ; white sugar of lead, 44 lb. ; in a gal. water. Add 4 gal. gum Barbary water (6 lb. to the gal.).
For the black, mix 1 gal. of the colour below, just before printing, with 4 pint sulphide of copper paste. To make the oolour, thicken 6 gal. clear chlorate of ammonia with 36 lb. British gum. Heat to 66° (150° F.), let stand till cold, and add aniline oil, 4 qt.; best muriatio acid at 34° Tw., 3 qt. Mix well together.
To make the chlorate of ammonia, dissolve 74 lb. tartaric acid in 6 gal. boiling water. When dissolved, add gradually 3 lb. 2 oz. sesquicarbonate of ammonia. Now add 8 lb. chlorate of potash, and stir till dissolved. Let stand till cold, and filter. Wash the precipitated tartar (potassium bitartrate) with 6 qt. cold water. This should yield 6 gal. clear chlorate of ammonia solution.
For the sulphide of copper, take flowers of sulphur 2 lb. 2 oz. ; caustic soda lye (70° Tw.), 11 lb. Stir well till dissolved, without heat ; add it to 10 lb. blue-stone, dissolved in 20 gal. boiling water. Wash till noutral to test-paper, and filter till the bulk of the paste is reduced to 1 gal.
Print the above black, red, and orange colours, and hang in a room at 21° (70° F.) with about 8°-9° F. difference between the wet and dry-bulb thermometers. Age till black, and pass through ammonia gas. Hang in a cool room for a few hours, and pass through the following solution at 71° (160° F.) :—Sulphate of soda, 2 lb.; phosphate of soda, 1 oz. ; water, 1 gal. Wash, and give
a second dunging for 25 minutes at 54° (130° F.) in water, 100 gal. ; sulphate of soda, 2 lb. ; phosphate of soda, 1 oz. ; and solid eow-dung, 4 qt. Wash, and dye with 13 lb. madder, or a proportionate quantity of alizarine, per piece. Wash, pass through chloride of lime at 1° Tw., then steam, and wash. Dry, and steam for 4 hour at 2 lb. pressure. Wet out, soap-wash, and pass through weak sours (1 part oil of vitriol at 170° Tw., to 1000 water) at 15° (60° F.) for 6 minutes. Wash, aud pass through chlbride of lime, as before. Wash, dry, aud raise orange in the usual way, first in biehromate alone, and then in bichromate and lime at 100° (212° F.). Wash well, and pass through chloride of lime, as before. Wash and dry.
Another Aniline Black.—Dissolve oz. chlorate of soda in 17 fi. oz. water, and thicken as usual. In another vessel, thicken 17 fl. oz. water, and stir in 2i oz. muriate of aniline, with 14 gr. chloride of vanadium.
Equal measures of these two solutions are mixed, and printed at once. Age at a low tempera ture, as long as chlorine is given off, and raise the temperature till perfectly dry. Lastly, pass through a solution of bichromate of potash, wash, aud dry.
The cerium aniline black, of Jerens, is obtained by mixing 75 gr. bisulphate of eerous oxide with 2i oz. muriate of aniline, thickened as usual. The shade, after printing, appears a light-green, but after ageing for 24 hours at 25° (77° F.)-20° (68° F.) by the wet-bulb thermometer—it turns to a dark-green, and, after soaping, and taking through aa alkaline beck, it comes up a fine black.