Dye composition, dye, preparation methods thereof and raw material composition of dye

A dye composition and dye technology, applied in the direction of organic dyes, can solve the problems of insufficient lifting power, dyeing depth and fastness, and achieve the effect of bright color, excellent dyeing fastness and good level dyeing

Active Publication Date: 2015-06-24
DONGYING ANNUOQI TEXTILE MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a yellow disperse dye composition, a dye containing it, a preparation method thereof and the present invention in order to overcome the shortcomings of the existing yellow disperse dyes, such as insufficient lifting power, dyeing depth and fastness. Dye raw material composition

Method used

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  • Dye composition, dye, preparation methods thereof and raw material composition of dye
  • Dye composition, dye, preparation methods thereof and raw material composition of dye
  • Dye composition, dye, preparation methods thereof and raw material composition of dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: the preparation method of dye composition

[0030] After mixing 9.16 grams (0.05mol) of 2,4-dinitroaniline and 8.41 grams (0.05mol) of 2-nitro-4-methoxyaniline, add 15 grams of 70% sulfuric acid (0.11mol), and then Slowly add 40% sulfuric acid solution of nitrosylsulfuric acid dropwise at 15°C to 25°C to complete the diazotization reaction (detected by TLC), and the N-ethyl-3-cyano group with a mass percentage of 16% - A solution of 4-methyl-6-hydroxy-2-pyridone (18.20 grams) (add 30.6 grams of 30% sodium hydroxide solution to dissolve), a coupling reaction occurs at 0-10 ° C, and the end point of the reaction is detected by the percolation ring method . After the reaction, the temperature of the reaction system was raised to 65°C-75°C for 2 hours, filtered, and the product was washed with water until the pH value of the eluate was 6-7 to obtain a bright orange powder dye composition with a yield of 94.2%. The content is ≥98% by HPLC analysis, and the we...

Embodiment 2

[0031] Embodiment 2: the preparation method of dye composition

[0032] After mixing 11.72 grams (0.064mol) of 2,4-dinitroaniline and 6.05 grams (0.036mol) of 2-nitro-4-methoxyaniline, add 11 grams of 98% sulfuric acid (0.11mol), and then Slowly add 45% nitrosyl sulfuric acid dropwise at 18~22°C, and after the diazotization reaction is completed by HPLC detection, it is mixed with N-ethyl-3-cyano-4-methyl-6-hydroxyl with a mass fraction of 12%. - A solution of 2-pyridone (17.80 g) (dissolved in 95 g of 25% sodium carbonate solution) was subjected to a coupling reaction at -5 to 5° C., and the end point of the reaction was detected by the percolation ring method. After the reaction, the temperature of the reaction system was raised to 65°C-75°C for 2 hours, filtered, and the product was washed with water until the pH value of the eluate was 6-7 to obtain a bright orange powder dye composition with a yield of 94.8%. The content is ≥98% by HPLC analysis, and the weight percentag...

Embodiment 3

[0033] Embodiment 3: the preparation method of dye composition

[0034]After mixing 4.39 grams (0.024mol) of 2,4-dinitroaniline and 12.78 grams (0.076mol) of 2-nitro-4-methoxyaniline, add 85 grams of 70% sulfuric acid (0.61mol), and then Slowly add 20% nitrosylsulfuric acid dropwise at 28~32°C, after the diazotization reaction is completed by HPLC detection, and N-ethyl-3-cyano-4-methyl-6-hydroxyl with a mass fraction of 16% - A solution of 2-pyridone (20.50 g) (dissolved with 38.6 g of 50% potassium hydroxide solution) undergoes a coupling reaction at 8 to 15° C., and detects the end point of the reaction by the percolation ring method. After the reaction, the temperature of the reaction system was raised to 65°C-75°C for 2 hours, filtered, and the product was washed with water until the pH value of the eluate was 6-7 to obtain a bright orange powder dye composition with a yield of 95.3%. The content is ≥98% by HPLC analysis, and the weight percentage of component B is 75.0%...

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Abstract

The invention discloses a dye composition which contains 10-70% of an ingredient represented by a formula I shown in a drawing and 30-90% of an ingredient represented by a formula II shown in a drawing. The invention further discloses a preparation method of the dye composition, wherein the method comprises the steps: (1) in a sulfuric-acid aqueous solution, carrying out diazotization reaction on mixed arylamine and a diazotization reagent at the reaction temperature of 15-35 DEG C; (2) enabling a product, obtained after the diazotization reaction, and N-ethyl-3-cyano-4-methyl-6-hydroxy-2-pyridone to be subjected to coupling reaction at the reaction temperature of -5 to 15 DEG C. The invention further discloses a raw material composition of a dye, wherein the raw material composition contains the dye composition, auxiliaries and a wetting agent. The invention further discloses a preparation method of the dye, wherein the method comprises the step of carrying out grinding and dispersing treatment on the raw material composition of the dye. The invention further discloses the dye prepared by the preparation method of the dye. During fabric dyeing, the dye disclosed by the invention is bright in color and light and good in dispersity and has excellent dyeing depth and dyeing fastness.

Description

[0001] This application is a divisional application of a patent application with an application date of December 20, 2011, an application number of 201110430201.1, and an invention title of "dye composition, dye, its preparation method, and the raw material composition of the dye". technical field [0002] The invention relates to the field of azo dyes, in particular to a dye composition, a dye containing the same, a preparation method thereof and a raw material composition of the dye. Background technique [0003] With the improvement of people's living standards and the enhancement of environmental protection awareness, more and more attention has been paid to high-performance environmentally friendly dyes. In addition to being environmentally friendly and not affecting human health, environmentally friendly dyes should also have excellent dyeing performance. In the printing and dyeing of polyester materials, bright yellow disperse dyes are widely used, whether they are si...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22C09B67/38
Inventor 赵敏
Owner DONGYING ANNUOQI TEXTILE MATERIALS
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