Special Techniques of Natural Dyeing using Mordants and Modifiers explores the development of special auxiliaries that enhance the colorfastness, color depth, and sustainability of naturally dyed fabrics that maintain low carbon footprints. Key topics include chapters on mordants, bio-mordants, transitional metal salts, and rare earth salts. Additionally, the book covers various modifiers and auxiliaries designed to improve color adherence, as well as a chapter dedicated to post-mordanting treatments with amino compounds. Natural dye enthusiasts will gain valuable insights into using mordants sustainably, achieving vibrant, long-lasting colors from common flowers and other local vegetative materials.