Dye wood, fungi, and lichens. Most dyes are synthetic, i.e., are man-made from petrochemicals. Other than pigmentation, they have a range of applications including organic dye lasers, optical media (CD-R) and camera sensors (color filter array). Textile dyeing dates back to the Neolithic period. Throughout history, people have dyed their textiles using common, locally available materials. Scarce dyestuffs that produced brilliant and permanent colors such as the natural invertebrate dyes Tyrian purple and crimson kermes were highly prized luxury items in the ancient and medieval world. Plant-based dyes such as woad, indigo, saffron, and madder were important trade goods in the
Tie-dye it was noted: "There are a few thousand Bagobos, who wear highly decorated clothing made of hemp fiber, all tied-and-dyed into fancy designs, and who further ornament themselves with big metal disks." Plangi and tritik are Indonesian words, derived from Japanese words, for methods related to tie-dye, and 'bandhna' a term from India, giving rise to the Bandhani fabrics of Rajasthan. Ikat is a method of tie-dyeing the warp or weft before the cloth is woven. Mudmee tie-dye originates in Thailand and neighboring part of Laos. It uses different shapes and colors from other types of tie-dye, and the colors