The application of thiourea dioxide in the printing and dyeing industry has the following advantages:

① It meets the requirements of clean production in the printing and dyeing industry, and there is no odor during use or storage that affects the environment.

② According to rough calculation, the cost of thiourea dioxide is 25% to 30% lower than that of insurance powder, and the effect is good.

③Good safety and easy to store.

④The purity is higher than that of hydrosulfite, and its content is 99.0%, which will not affect the brightness of color.

⑤Easy to operate and widely used. The use of thiourea dioxide as a reducing agent has good stability and a large time latitude; because the dosage is small, it will not affect the color, so it is easy to wash, especially for those who are not skilled in operation.