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Anthrapyridone reactive dye compound, preparation method and application thereof

A reactive dye, anthrapyridone technology, applied in the field of anthrapyridone reactive dye compound and its preparation and application, can solve the problems of poor light fastness, unsuitable fabric dyeing, narrow application range, etc.

Active Publication Date: 2016-03-02
ZHEJIANG LONGSHENG GROUP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, many commonly used red reactive dyes are difficult to have the above-mentioned comprehensive properties, especially the light fastness is not good
Although CN201180003906 discloses a kind of anthrapyridone sulfonic acid compound suitable for paper inkjet printing, the dye is not suitable for fabric dyeing, and cannot make cotton fabric or its blended fabric colored, and its application range is narrow

Method used

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  • Anthrapyridone reactive dye compound, preparation method and application thereof
  • Anthrapyridone reactive dye compound, preparation method and application thereof
  • Anthrapyridone reactive dye compound, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Cyclization: In a 150mL three-necked beaker, add 0.025mol bromonic acid, 0.1mol ethyl acetoacetate, 50mL o-dichlorobenzene, 10mL dimethyl sulfoxide, and 1.25g sodium carbonate. Stir at 175°C for cyclization reaction for 8 hours. After the reaction, cool and stand still, add 50mL of water to dilute, and adjust the pH value to 1.5 with hydrochloric acid, add a small amount of sodium chloride for salting out, filter with suction, wash the filter cake with 1% dilute hydrochloric acid, and dry Dry and set aside.

[0056] Condensation: In a 150mL three-necked beaker, add the filter cake obtained from the above cyclization reaction and mix with 0.025mol m-(β-hydroxyethylsulfone) aniline, add 40mL water, heat up to 65°C, add 0.2g copper powder and slowly add 7.8g of baking soda, then heated up to 70°C, then added 0.25g of cuprous chloride, kept the temperature for 20 hours, adjusted the pH value to 1.5 with hydrochloric acid after the reaction, added a small amount of sodium ch...

Embodiment 2

[0060] According to the preparation method described in Example 1, m-(β-hydroxyethylsulfone)aniline is replaced by p-(β-hydroxyethylsulfone)aniline, and a small amount of water is added to the filter cake obtained after the esterification reaction is completed , first use sodium hydroxide solution to adjust the pH value to 10-11 to carry out the deesterification reaction, then adjust the pH value to 5-6 with dilute hydrochloric acid, and dry to obtain the compound of formula (I-2). In the aqueous solution, λmax=521.5nm, which is applied to Dyeing can dye the fabric red.

[0061]

Embodiment 3～6

[0063] According to the preparation method described in Example 1, the difference is that the raw materials ethyl acetoacetate and m-(β-hydroxyethyl sulfone) aniline are replaced by compounds of formula (II) and formula (III) in the following table 1, The dye compounds shown in the table are obtained, which when applied to dye fabrics red:

[0064] Table 1 Raw materials and dye compounds

[0065]

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Abstract

The invention discloses an anthrapyridone reactive dye compound, a preparation method and application thereof. The anthrapyridone reactive dye compound has a structure shown as formula (I) in the specification. The invention provides application of the anthrapyridone reactive dye compound in printing and dyeing of fiber materials. The anthrapyridone reactive dye compound has excellent color fastness, and especially has prominent light fastness. (formula I).

Description

(1) Technical field [0001] The invention relates to an anthrapyridone reactive dye compound, a preparation method and application thereof. (2) Background technology [0002] The development of new reactive dyes generally requires good solubility and diffusibility, because high solubility can improve the utilization rate of dyes, reduce the amount of dyes contained in wastewater after dyeing, and good diffusivity makes the reaction rate and fixation efficiency high, uniform The degree of dyeing and through-dyeing is good, so that the entire printing and dyeing time is reduced, and the cost of printing and dyeing is reduced. At the same time, dyes are also required to have good color fastness. [0003] As a color species with a large amount of consumption, red reactive dyes not only require high solubility and good diffusivity, but also have good color fastness. At present, many commonly used red reactive dyes are difficult to have the above-mentioned comprehensive propertie...

Claims

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Application Information

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IPC IPC(8): C09B62/505C07D221/18D06P1/38D06P3/66D06P3/24
Inventor 王专沈杰姜怀领欧其
Owner ZHEJIANG LONGSHENG GROUP