Each pack of Tulip® Permanent Fabric Dye is bursting with a whole spectrum of ideas and with Tulip® you have all the colors of the rainbow to choose from. Wake up your wardrobe, revive a faded top or brighten some cushion covers with color, ease and permanent results you’ll be proud of! Tulip® Permanent Fabric Dye is suitable for all 100% natural fabrics, including cotton, linen, ramie and rayon. Wool, silk and polyester/cotton mixes will dye to lighter shades depending on the percentage of natural fibers. Pure polyester, acrylic, nylon and special finish fabrics are not recommended for dyeing.