The principles and practice of textile printing (1912)
Knecht, Edmund, 1861-1925, Fothergill, James Best · London : Charles Griffin · leaf 299
erthan Logwood extract, andmust be employed accord-ingly. Y\ hat is known as Faststeam black, Carmine black, etc., is simply a reduced Logwood containingthe necessary mordant. It is made by precipitating Logwood with bichromateof potash, and then treating the black lake thus obtained with… … Steam Logwood I Hack. Fast black works very well for blotches; it docs not scum so muchas the ordinary Logwood black, neither does it stick in so badly as a ride. Persian Berry Extract. — This colouring matter is an extract from thedried unripe berries of various species of hhumnms ; it is used…
Textile printing
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