| Color | Dyestuff | Parts by weight | Cit. Acid | Dextrin |
|---|---|---|---|---|
| Blue | Marine blue B. N. | 3.5 | 35.0 | 60.0 |
| Brown | Vesuvin S. | 30.0 | 37.5 | 30.0 |
| Green | Brilliant green O. | 13.5 | 18.0 | 67.5 |
| Orange | Orange II. | 9.0 | 18.0 | 75.0 |
| Red | Diamond fuchsine I. | 3.5 | 18.0 | 75.0 |
| Pink | Eosin A. | 4.5 | — | 90.0 |
| Violet | Methyl violet 6 B. | 3.6 | 18.0 | 75.0 |
| Yellow | Naphthol yellow S. | 13.5 | 36.0 | 67.5 |
Very little of these mixtures suffices for dyeing five eggs. The coloring matter is dissolved in 600 parts by weight of boiling water, while the eggs to be dyed are boiled hard, whereupon they are placed in the dye solution until they seem sufficiently colored. The dyes should be put up in waxed paper.
Fast Stamping Color.
New Mordanting Process.
Process For Dyeing In Khaki Colors.
The solution thus composed of these three salts is afterwards diluted at will, according to the color desired, constituting a range from a dark brown to a light olive green shade. The proportions of the three salts may be increased or diminished, in order to obtain shades more or less bister.
Cotton freed from its impurities by the usual methods, then fulled as ordinarily, is immersed in the bath. After a period, varying according to the results desired, the cotton, threads, or fabrics of cotton, are washed thoroughly and plunged, still wet, into an alkaline solution, of which the concentration ought never to be less than 14° Bé. This degree of concentration is necessary to take hold of the fiber when the cotton comes in contact with the alkaline bath, and by the contraction which takes place the oxides of chrome and of manganese remain fixed in the fibers.
This second operation is followed by washing in plenty of water, and then the cotton is dried in the open air. If the color is judged to be too pale, the threads or fabrics are immersed again in the initial bath, left the necessary time for obtaining the desired shade, and then {277} washed, but without passing them through an alkaline bath. This process furnishes a series of khaki colors, solid to light, to fulling and to chlorine.
Lakes:
Scarlet Lake.—In a vat holding 120 gallons provided with good agitating apparatus, dissolve 8 pounds potash alum in 10 gallons hot water and add 50 gallons cold water. Prepare a solution of 2 pounds ammonia soda and add slowly to the alum solution, stirring all the time. In a second vessel dissolve 5 pounds of brilliant scarlet aniline, by first making it into a paste with cold water and afterwards pouring boiling water over it; now let out steam into the vat until a temperature of 150° to 165° F. is obtained. Next dissolve 10 pounds barium chloride in 10 gallons hot water in a separate vessel, add this very slowly, stir at least 3 hours, keeping up temperature to the same figures. Fill up vat with cold water and leave the preparation for the night. Next morning the liquor (which should be of a bright red color) is drawn off, and cold water again added. Wash by decantation 3 times, filter, press gently, and make into pulp.