High dye uptake disperse dye composition and preparation method and application thereof
A technology of dye composition and disperse dyes, which is applied in dyeing, organic dyes, textiles and papermaking, etc., can solve the problems of low dye uptake and unacceptable fastness, achieve good dye uptake and good application prospects , The effect of simple process
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Embodiment 1
[0049]
[0050] Mix 37g of aniline, 28.8g of acrylic acid, 100g of water, stir at 90°C for 20 hours, cool down, add 200g of methanol, stir for 12 hours at 0-5°C, filter, add 150g of water, 11g of soda ash, and 20g of benzyl chloride, mix, stir, and Add 2g of potassium iodide at 80°C, react for 12 hours, cool down, add 100g of methanol, stir at 0-5°C for 12 hours, filter the filter cake, mix with 100g of DMF, 11g of soda ash, and 14g of bromoacetone, raise the temperature to 60°C, add 1g of potassium iodide, and stir for reaction After 12 hours, the temperature was lowered to 40° C., 200 g of water was added, and the esterified product was obtained by filtration.
[0051] Mix 41.5g of sulfuric acid and 9.5g of acetic acid, slowly add 4.65g of 2-amino-3,5-dinitrothiophene when the temperature drops below 10°C, and then slowly add 8.2g of nitrosyl sulfuric acid at 0-5°C. After the dropwise addition, the reaction was stirred at about 0°C for 2 hours until the reaction was compl...
Embodiment 2
[0054] After blending 6.7g of formula (I-1), 14.5g of formula (II-1), 8.0g of formula (III), 1.9g of formula (IV) and 68.9g of dispersant MF and adding water, grind and disperse with a grinder, and then Spray drying was performed to obtain a blue to black dye composition.
Embodiment 3
[0056] After formula (I-1) 20.0g, formula (II-1) 8.3g, formula (III) 4.0g, formula (IV) 2.3g and dispersant MF65.4g add water and blend, grind and disperse with a grinder, and then Spray drying was performed to obtain a blue to black dye composition.
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