The dyeing of cotton and other vegetable fibres with the dyestuffs of Leopold Cassella & Co. Frankfort o. M (1902)
Leopold Cassella & Co · Frankfort o.M. : Leopold Cassella & Co. · leaf 356
Wooden, iron or rubber rollers are best suited. The padding trough or roller box is made of either woodor iron. It should be fairly large and hold not less than 25—45gallons of liquor. The small guiding rollers inside the box maybe made of wood, running in iron bearings, or wholly of iron.They… … The trough is charged per 10 gallons, according to shade,with: 1—2 lbs Immedial Blue 1—2 „ cryst. sodium sulphide 5—8 oz caustic soda lye 75° Tw. l/s—1 lb common salt. The bath is replenished by the addition of 6—12 % Immedial Blue calculated 6—12 °/o cryst. sodium sulphide [ on the weight 1 l/a —…
Dyes and dyeing
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