Farbenfabriken vorm. Friedrich Bayer & Co · Leverkusen [Germany] : The Farbenfabriken · leaf 4
hades, an addition of Glaubers salt is, in most cases,unnecess;ary. XVI. The Dyeing of Feathers. Ostrich feathers are dyed fancy shades with basic coloursin an acetic acid bath. Black shades are dyed with logwood and ironin combination with Feather Black 26042. Goose feathers etc. are dyed with… … ) 1^^ 2^ COa;
Dyes and dyeing
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