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 123
2) developed with Phenylene Diamine ■ :,-.. 5% … For directdyeing seepage 60. Nearly as fast towashing as DiamineBlack BH developedwith Beta Naphtol.Dirk shades washedtogether with whitecotton tinge it onlytriflingly. Diaminogene extra pat. 1) developed with Beta Naphtol
Dyes and dyeing
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