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 91
Diamine Deep Blue R pat. aftertreated withsulphate of copper Fastness towashing Fastnessto Light For directshade seepage 45,for after-treatment P-igand 67 66 ■ he- Are superiorother blues which canbe aftertreated, because the shadesare but little changed when washed with soda; white cottonwashed… … Diamineral Black 3B pat. aftertreated with sulphate of copper and bichromate of potash
Dyes and dyeing
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