Extraction of Carthamin from Carthamus Tinctorus and Investigating Its Dyeing of Wool Using Potassium DI-Chromate Mordant

Document Type: Research Article

Author

Department of Applied Chemistry, Faculty of Chemistry, Tabriz University, Tabriz, I.R. IRAN

Abstract

Carthamin, the natural dye of carthamus tinctorius (Golrang) was separated by soxhlet extraction and further purified in good yields. Its mordant dyeing of wool, using potassium dichromate as mordant, showed a high washing fastness (above 4). Mordanting by "sweet chrome", "sour chrome", and "reduced chrome" proved that last one to be superior.

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