CHAPTER VI—THE INDIGO OR VAT COLORS 91

Natural and Synthetic Indigo—Properties and Application—Vat Dyeing, Old and Modern—Dyeing Directions—The Modern Vat Colors—Their Properties and Uses—Selected Dyestuffs—Fastness to Light and Washing—Dyeing Directions for Cotton, Linen and Silk.

History, Properties, and Application to Cotton, Wool, Silk, etc.—Disadvantages—Not Fast to Light—Dyeing Directions for Straw, Raffia, etc.

History, Properties, Uses, and List of Selected Dyestuffs—Dyeing Directions for Wool.

The Dye-bath—The Dyeing Method—The Finishing Process—Dry and Wet Starching—Dyeing in the Starch—Black Dyeing of Feathers— Painting Feathers.

History—Preparation of Leather—Oil, Mineral and Bark Tanning— Dyeing, Staining and Finishing Leather.

History, Origin and Varieties of Silk—Preparing Silk for Dyeing— Piece Dyeing—Skein Dyeing—Dyeing Wild Silks.

Black Dyeing of Silk—Coal-Tar Colors—Logwood—Weighting of Silk— Properties and Tests for Weighted Silk—Dyeing Silk with Colors Fast to Washing.

History, Preparation and Properties of Mercerized Cotton—History, Preparation and Properties of Artificial Silk—Precautions to be Taken in Dyeing and Finishing.

As Used in South America, India, Philippines and U.S.—Variations in Tying Process—How Dyed—Tied and Discharged Work.

Japanese Practice—U.S. Practice—Knives, Brushes, Paper, etc.— Colors for Leather, Silk, and Cotton—Stencilling with Aniline Black Paste.

Japanese Practice—Resist Paste and the Sulphur Colors—Discharge Stencilling with Bleaching Powder and Hydrosulphite.

Javanese Practice—Modern Practice and Apparatus—Dyeing of Batiked Goods—Use of Batik Process on Cotton, Linen, Silk, Leather, Wood, Bone, etc.