77365-70-9Relevant articles and documents
Preparation method of dye intermediate applicable to digital jet printing or dyeing
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, (2019/02/06)
The invention relates to a preparation method of a dye intermediate applicable to digital jet printing or dyeing. The active dye intermediate is 2-carboxyl-4-beta sulfonylsulfone ethyl sulfate-aniline. The method comprises the following steps of (1) acetylation; (2) sulfochlorination; (3) reduction; (4) hydroxyethylation; (5) esterification hydrolysis. The dye intermediate prepared by the method is applicable to synthesis of digital jet printing or dyeing.
Active dark blue dyestuff for digital inkjet printing and preparation method thereof
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Paragraph 0151; 0154; 0155; 0156; 0157; 0158, (2019/01/14)
The invention relates to active dark blue dyestuff for digital inkjet printing and a preparation method thereof. A molecular structure general formula of the active dark blue dyestuff for the digitalinkjet printing is shown as a formula (I): the formula (