What is the technique of tying cloth with a string and dyeing it to produce a flowery color?

Tie-dyeing is anciently known as za val, twisted val, clip val and dyeing val, is a traditional and unique Chinese folk dyeing process. Fabric in the dyeing part of the knotting up so that it can not color a dyeing method, one of China's traditional hand-dyeing technology. Tie-dyeing process is divided into two parts: knotting and dyeing. It is through the yarn, thread, rope and other tools, the fabric is tied, sewing, binding, embellishment, clip and other forms of combination after dyeing. The process is characterized by a printing and dyeing technique in which threads are twisted into knots in the fabric to be dyed, and then the twisted threads are removed. It has more than a hundred variations of techniques, each with its own characteristics.