Enhance fabric dyeing results with Soda Ash Fixer – a crucial ingredient for achieving vibrant, long-lasting color. Used to activate fiber-reactive dyes like Procion MX, this 1lb pack ensures deep, permanent absorption on natural fabrics such as cotton, linen, and silk. Essential for Dyeing: Helps fiber-reactive dyes bond permanently to fabric for brilliant, washfast results. Ideal for Natural Fibers: Works best on cotton, silk, rayon, linen, and other plant-based textiles. Easy to Use: Simply dissolve in water and soak fabric before dyeing for optimal color absorption. Perfect for Tie-Dye & Batik: A must-have for creating vibrant, professional-quality textile art.