Dyeing industry chemicals,19th century. Illustration of a machine being use to grind up cream of tartar (potassium bitartrate) and alum powder,both for use in producing dyes or as a mordant (helping dyes stick to fabrics). Artwork from volume 9 (1870) of a republication of 'Les Grandes Usines',a multi-volume work on French industry by journalist and author Julien Turgan (1824-1887) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library |
Bildgröße: | 3788 px × 4660 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |