How to do tie-dyeing

1, pretreatment before dyeing, desizing to remove the branch pulp. Alkaline solution, oxidant or amylase can be used for cooking and desizing. The purpose of refining is to remove natural impurities and residual pulp from the fiber and boil it with caustic soda and water. Bleaching is used to remove pigments and residual impurities. Sodium hypochlorite or hydrogen peroxide is often boiled with water. Cloth bleached with an electric iron, used for drawing and binding.

2. Bundle dyeing: mark the designed pattern on the cloth with drawing powder or trace the pattern with drawing liquid, and then bundle or sew the cloth. When finished, soak it in water and take it out to dry a little. When it does not drip, put it into the prepared dye solution or soak or cook it for a certain period of time, then rinse it with clear water and dry it.

3. Post-dyeing treatment: after drying, the bundle can be untied when it is not completely dried, and ironed with an iron when it is wet.