Blue temporary water-soluble disperse dye, preparation method thereof and application thereof

[0039] Example 1

[0040] Add 60ml of water to a 250ml four-necked flask, start stirring, then add 1.6g of sodium hydroxide, stir evenly and raise the temperature to 60℃, start adding 1,4-diaminoanthraquinone-2,3-dicarboxyimine 6.18 g. After the material is added, heat up to 100°C, keep stirring and react for 1h, add 1g of decolorizing activated carbon, stir for 30min, filter and rinse the activated carbon with 30ml hot water, and pour the filtrate into a 250ml four-neck flask, start stirring and heat up to 60 ℃, slowly add 2.08g 98% sulphuric acid mixed with 8ml water dilute sulphuric acid, when the dilute sulphuric acid is added, heat up to 100℃, keep the temperature for 1h, acidify with 18.25% hydrochloric acid 10ml, the material on the filter paper will see clearly , Filter while it is hot and rinse the filter cake with 100ml of hot acid water, and dry it for later use;

[0041] Add 60ml of water into a 250ml four-necked flask, start stirring, add 4.56g of p-carboxymethylsulfonyl

[0043] Example 2

[0044] Using the 3% liquid water-soluble disperse dye prepared in Example 1 as the ink for inkjet printers, after printing, the writing is uniform, and after the dye is deposited on the printing paper, the dye will not dissolve twice. Drop water droplets on the printed paper, without causing ink diffusion.

[0045] Example 3

[0046] Using the 3% liquid water-soluble disperse dye prepared in Example 1, add 0.5% of the total mass of the ink ammonia, 1% of the total mass of the ink ethylene glycol dimethyl ether, and 0.1% of the total mass of the ink JFC dispersant, stir and mix After uniformity, as an inkjet printer ink, after printing, the writing will be uniform. After the dye is precipitated on the printing paper, the dye will not dissolve twice. Drop water droplets on the printed paper, without causing ink diffusion.