CHAPTER I. Page THE WOOL FIBRE-- Structure, Composition and Properties...................... 1 CHAPTER II. PROCESSES PREPARATORY TO DYEING-- Scouring and Bleaching of Wool............................ 15 CHAPTER III. DYEING MACHINERY AND DYEING MANIPULATIONS-- Loose Wool Dyeing, Yarn Dyeing and Piece Dyeing Machinery................................................. 40 CHAPTER IV. THE PRINCIPLES AND PRACTICE OF WOOL DYEING-- Properties of Wool -- Methods of Wool Dyeing -- Groups of Dyes --Dyeing with the Direct Dyes -- Dyeing with Basic Dyes -- Dyeing with Acid Dyes -- Dyeing with Mordant Dyes -- Level Dyeing -- Blacks on Wool -- Reds on Wool -- Mordanting of Wool -- Orange Shades on Wool -- Yellow Shades on Wool -- Green Shades on Wool -- Blue Shades on Wool -- Violet Shades on Wool -- Brown Shades on Wool -- Mode Colours on Wool.................... 59 CHAPTER V. DYEING UNION (MIXED COTTON AND WOOL) FABRICS............... 168 CHAPTER VI. DYEING OF GLORIA........................................... 188 CHAPTER VII. (p. vi) OPERATIONS FOLLOWING DYEING-- Washing--Soaping--Drying................................. 197 CHAPTER VIII. EXPERIMENTAL DYEING AND COMPARATIVE DYE TESTING............ 211 CHAPTER IX. TESTING OF THE COLOUR OF DYED FABRICS...................... 218 INDEX...................................................... 225 LIST OF ILLUSTRATIONS. (p. vii) Fig. Page 1. Microscopical Sketch of Wool Fibre....................... 2 2. Kempy Wool Fibres........................................ 3 3. Sectional View of Wool Fibre............................. 4 4. Wool Fibres Showing Action of Alkalies.................. 10 5. Wool Fibres Showing Action of Acids..................... 11 6. Wool Washing Machine.................................... 20 7. Wool Cloth Washing Machine.............................. 28 8. Woollen Cloth Washing Machine........................... 29 9. Sulphur Bleach House.................................... 29 10. Dyeing Tubs and Vat..................................... 41 11. Section of Dye Vat...................................... 42 12. Delahunty's Dyeing Machine.............................. 44 13. Obermaier Dyeing Machine................................ 44 14. Holliday's Yarn Dyeing Machine.......................... 47 15. Klauder-Weldon Yarn Dyeing Machine...................... 47 16. Dyeing Jiggers for Cloth................................ 51 17. Dyeing Jiggers for Cloth................................ 53 18. Jig Winch Dyeing Machine................................ 53 19. Cloth Dyeing Machine.................................... 54 20. Plush Fabric Dyeing Machine............................. 55