Button, a small fastener, usually made of plastic and sometimes seashell, is used to fasten two pieces of fabrics in modern clothing and fashion design.
leather, coconut, wood etc.
polyester, nylon, melamine, urea etc. Polyester, urea, and melamine are thermos set plastics while nylon is thermoplastic. The first group once formed cannot be remolded for reprocessing. So during laundering or garment processing they do not get damaged. Garment and buttons are not dyed in the same dye-bath to match the color. It is an essential requirement that buttons must tolerate garment dyeing and
finishing without taking the dye themselves.