Red-light blue liquid dye composition and application thereof in textile dyeing and printing
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A technology of liquid dyes and compositions, which is applied in textiles and papermaking, dyeing methods, organic dyes, etc., and can solve the problems of unsuitable and unsuitable dye reflection wavelengths, etc.
Active Publication Date: 2021-12-07
SHENYANG RES INST OF CHEM IND
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[0008]
However, the existing liquid disperse dyes are limited to the yellow series, and there are large differences in the polarity of the conjugated group and the dye structure among the disperse dyes of different colors. At the same time, the methylsulfonyl group cannot have a great impact on the reflection wavelength of the dye, and the dye with its patented structure is not suitable for other varieties except yellow
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Embodiment 1
[0047] (1) Preparation of hydrophilic components
[0048] In a 100 ml three-mouth flask, 21.96 mL (0.4 mol) was added to 5 ° C, cooled to 5 ° C, and the purity was slowly added to 70% (0.04004 mol) at 5 ° C, and slowly warmed to 70 At ° C, stirred for 30 min, cooled to 20 ° C or lower. 4-carboxylate-2,6-dibromoiline 16.4 g (0.04 mol) was gradually added between 15-20 ° C, and the wall was filled with 4.36 mL, 98% concentrated sulfuric acid (0.04 mol). Amine, combined into the reaction flask. Slowly warmed to 40 ° C, reacted 4-5h, until all dissolved, measure the end point of the diazonation (taking the two drops of diazo), and no precipitation precipitated, that is, the end point), after the reaction, cool stand-by;
[0049] (2) Preparation of intermediates containing carboxymesulfonyl hydrophilic component aliquots
[0050] In a 500 ml beaker, 3-acetamin-N, N-diethylideine was added 8.41 g (0.04 mol), 100 ml of water, and 3.44 ml of 3.44 ml (0.04 mol) was added dropwise to total ...
Embodiment 2
[0071] (1) Preparation of hydrophilic components
[0072] The method is the same as in Example 1.
[0073] (2) Preparation of intermediates containing carboxymesulfonyl hydrophilic component aliquots
[0074] Methods to Example 1
[0075] (3) Preparation of hydrophilic components of carboxylansulfonyl groups
[0076] In a 500 ml beaker, a hydrophilic component prepared from step (2) was added, 150 ml of water, 0.01 mL, 30% sodium hydroxide solution (0.04 mol) was added dropwise to complete dissolution.
[0077] 0.71 g of cyanide (8 mmol) and 20 mL of water were added to 500 ml of three flasks, 0.39 g, 12% cyanide aqueous solution (0.0132 mol), stirring the cyanide copper all dissolved. The mixture was added to 15 min, and the dissolved hydrophilic component alone was added to the reaction bottle, and after 15 min, 24.51 g, 12% cyanide aqueous solution (0.06 mol) was slowly added dropwise. After the drop is added, the reaction is stirred for 30 min. 4.4 g of ferricide (0.064 mol) w...
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Abstract
The invention relates to a liquid dye composition, in particular to a red-light blue liquid dye composition and application thereof in textile dyeing and printing. The composition is prepared from the following components in percentage by weight: 15 to 60 percent of hydrophobic dye monomer alpha, 0.05 to 5 percent of hydrophilic dye monomer beta and 35 to 84.5 percent of water, wherein the hydrophobic dye monomer alpha is one or two of C.I. disperse blue 183: 1 or C.I. disperse blue 165, and the hydrophilic dye monomer beta is an azo compound containing carboxymethylsulfonyl as shown in the specification. The liquid disperse dye composition does not contain anionic or nonionic dispersants commonly used in conventional powdery or liquid disperse dyes. The liquid dye composition disclosed by the invention is used for dyeing and printing hydrophobic fibers, does not need a complicated washing process and does not generate high-chroma and high-COD (Chemical Oxygen Demand) wastewater while ensuring high degree of dyeing, good dry and wet friction, sublimation and washing fastness, and is a clean and environment-friendly disperse dye product.
Description
Technical field [0001] The present invention relates to liquid dye composition, specifically a red and a blue liquid dye composition applied to the textile dyeing and printing. Background technique [0002] Disperse nonpolar organic compound having a hydrophobic dye itself, does not contain a hydrophilic group. When used in dyeing and printing, usually prepared to have a suitable particle diameter of the anionic aqueous dispersion or powdery product easy to form a dispersion in water, the process itself is typically necessary to add considerable weight to the dye in the dye or even several times non-ionic additives. Addition of these additives can form the hydrophobic disperse dye solids aqueous suspension by mixing with water when applied, after the transfection process itself additives, need to strip the fiber or textile surface on the completion of the dye into the water It has become one of the major printing and dyeing wastewater COD source. [0003] In recent years, energy ...
Claims
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