Sample book with dyeing instructions and an 18-section foldout containing 143 dyed feathers.
Directions for Dyeing.
Dye at the boil with an addition of
2–8./0 sulphuric acid 168. Tw.10–20./0 Glauber’s salt. cryst.,
according to the depth of the required shade. The dyeing must be continued until the bath is exhausted and the shades are sufficiently level, i. e. the feathers will have to be boiled for about an hour.
Afterwards rinse well, dry and steam (if necessary).
Before dyeing, clean the feathers well. For this purpose, it is advisable to use a weak, lukewarm solution of olive oil soap, to which a little ainmonia has been added. Some Tetrapol may also be added to the solution. After cleaning the feathers, rinse well and treat as described above.
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