High dye uptake disperse dye composition and preparation method and application thereof
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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
Inactive Publication Date: 2016-06-08
俞杏英
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Problems solved by technology
With the development of synthetic fibers, people have also put forward new requirements for dyes. The previous dyes have application defects, such as low dyeing rate, unacceptable fastness, etc.
Method used
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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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Abstract
The invention relates to a high dye uptake disperse dye composition and a preparation method and application thereof. The disperse dye composition is prepared from a compound shown in the formula I with the content accounting for 5-25% of the total mass of the dye composition, a compound shown in the formula II with the content accounting for 5-25% of the total mass of the dye composition, a compound shown in the formula III with the content accounting for 0.5-10% of the total mass of the dye composition, a compound shown in the formula IV with the content accounting for 0.5-8% of the total mass of the dye composition, and the balance additive. The preparation method comprises the steps that the compounds in the formulas I, II, III and IV and the additive are mixed to be uniform and are ground and subjected to spray drying so as to obtain the high dye uptake disperse dye composition. The disperse dye composition is applied to dyeing of hydrophobic fiber or fiber blends. The disperse dye composition has the good soaping fastness, perspiration fastness, sublimation fastness and whiteness pitching fastness. The preparation method is simple in technology, low in cost and good in application prospect.
Description
technical field [0001] The invention belongs to the field of nonionic dyes, in particular to a high dye uptake disperse dye composition and its preparation method and application. Background technique [0002] Disperse dyes are a class of non-ionic dyes with low water solubility. Disperse dyes were first used in the dyeing of acetate fibers, known as acetate dyes. With the development of synthetic fibers, nylon and polyester have appeared one after another, especially polyester, because of its high alignment, less fiber voids, and strong hydrophobicity. The fiber needs to be swollen under high temperature and hot melting, so that the dye can enter the fiber and be dyed. With the development of synthetic fibers, people have also put forward new requirements for dyes. The previous dyes have application defects, such as low dyeing rate and unacceptable fastness. [0003] Therefore, it is necessary to develop a new type of dye that can be applied to many types of fibers and t...
Claims
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