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What is Package Dyeing with Indigo Dyes about?

1. Package dyeing was introduced to prevent damage from excessive working in open vessels, especially for wool. The principle is moving dye liquor through stationary material using different support methods. 2. Early package dyeing used indigo, the first vat dye. Indigo could produce rich navy blues but had only fair washing fastness, fading to sky blue over washes. 3. Advances enabled dyeing larger quantities in one batch using vat dyes on cotton yarns up to 2000lbs. Research on dye rates extended packag

Author

Awais Imran

Language

EN