The Principles of Leather Manufacture
CHAPTER XXV.
_DYES AND DYEING._
Coal-tar colours -- Acid and basic colours -- Theories of dyeing -- Fixation of colours on leather -- Mordants and mordant colours -- Curriers’ inks -- Glazes and finishes -- “Assistants” in dyeing -- Bronzing -- Fading of colours -- Practical methods of leather dyeing -- Use of dyewoods -- Iron “strikers” -- Tannin blacks -- Staining -- Theory of colour-mixtures -- Finishing dyed leathers -- Testing of dyes -- Injurious effects of metals in dyeing PAGE 394