Q
What is the role of Yuanming powder in printing and dyeing?
A
Yuanming powder is also called Glauber's salt, and its scientific name is sodium sulfate. This is an inorganic salt that is very close to the chemical nature of salt. It has two uses in printing and dyeing plants, one is a dyeing agent for direct dyed cotton. The other is a retarder for dyeing silk fabrics.

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