The locals did not dye before1988 because the cooperative department gave out the ready-made dyed threads. In later years, they permitted the private businesses to undertake dyeing. They dye yarn for themselves as well as for sale.
There are two kinds of dyes: natural and chemical. There are two types of dyeing techniques: hot dyeing and cool dyeing. For dyeing process, warm or hot water, cold water, glue-liquid, dye and glove are required. The dyeing process follows the cycle of cleaning (purifying), dyeing, wringing, shaking off, and putting out to dry.