Reactive yellow dye composition, yellow dye and preparation method and application thereof

A dye composition, yellow dye technology, applied in dyeing methods, organic dyes, textiles and papermaking, etc., can solve the problems of poor dyeing fastness and dyeing performance, and achieve excellent dyeing fastness and dyeing performance, deep color , excellent lifting effect

Pending Publication Date: 2021-12-07
ZHEJIANG YIDE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects such as poor color fastness and dyeing performance of yellow dyes in the prior art, a yellow dye composition and a yellow dye prepared by using the composition are provided

Method used

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  • Reactive yellow dye composition, yellow dye and preparation method and application thereof
  • Reactive yellow dye composition, yellow dye and preparation method and application thereof
  • Reactive yellow dye composition, yellow dye and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Formula (1) is prepared using the following synthetic methods

[0042] (1) Add 100-200 parts by mass of ice water to the glass, and then add 10-30 parts by mass of J acid and 5-20 parts by mass of maleic anhydride. Carry out once acylation reaction 2 ~ 5 hours, obtain formula (2) compound slurry, formula (2) molecular structural formula is:

[0043]

[0044] (2) Add 20-40 mass parts of formula (3) after adding 100-200 mass parts of ice water in the glass, add 7-10 mass parts of sodium nitrite, then add 50-70 mass parts of hydrochloric acid , carry out the diazo reaction for 2 to 3 hours at a temperature of 0 to 15°C to obtain the diazonium salt of formula (4), and the molecular structural formulas of formula (3) and formula (4) are:

[0045]

[0046] (3) Add the formula (2) to the synthesized diazonium salt formula (4), and carry out the coupling reaction for 3-7 hours under the conditions of an acid-binding agent, a temperature of 0-10° C., and a pH=6.5-8.5 to obt...

Embodiment 2

[0050] (1) Add 100-200 parts by mass of ice water to the glass, then add 10-30 parts by mass of J acid and 5-20 parts by mass of maleic anhydride, at a temperature of 1020°C and pH=3.06.5 The acylation reaction was carried out once for 25 hours to obtain compound slurry.

[0051] (2) After adding 100-200 mass parts of ice water in the glass, add 20-40 mass parts of para-ester, add 7-10 mass parts of sodium nitrite, then add 50-70 mass parts of hydrochloric acid, The diazonium reaction was carried out at a temperature of 0-15°C for 23 hours to obtain the para-ester diazonium salt for later use.

[0052] (3) Add J acid acylation to the synthesized para-ester diazonium salt, adjust pH=6.5-8.5 with acid-binding agent sodium bicarbonate, and carry out coupling reaction at 0-10°C for 3-7 hours, A coupling compound slurry was obtained.

[0053] (4) Add a basic compound to the coupling compound and raise the temperature to 60-80° C. and carry out hydrolysis reaction under the condit...

Embodiment 3

[0056] According to the data in Table 1, component A, component B, co-solvent and water are blended with liquid slurry, mixed evenly, and then spray-dried or powder blended. The blending time is 2 hours.

[0057] Table 1: The proportioning ratio of the dye raw material composition of Experiment No. 1-7 is as follows:

[0058]

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Abstract

The invention discloses a reactive yellow dye composition, a yellow dye and a preparation method and application thereof, and relates to the field of fine chemical engineering, the yellow reactive dye composition comprises a component A composed of one or more of compounds shown in a formula (I), and a component B composed of one or more of compounds shown in a formula (II); the content of the component A is 50-100 parts by weight, and the content of the component B is 0-50 parts by weight. The preparation method of the yellow dye comprises the following steps: acylating the J acid, coupling with raw materials containing R1 and R2, and finally hydrolyzing to obtain the reactive yellow dye. When the dye is produced and used, three wastes are not generated, the current strict environmental protection requirement is met, and the reactive yellow dye has the comprehensive performance of good compatibility, high fixation rate and excellent color fastness application performance in reactive dye dyeing application;.

Description

technical field [0001] The present invention relates to the field of fine chemical industry, more specifically, relate to a kind of reactive yellow dye composition, the yellow dye that uses this reactive yellow dye composition to prepare and preparation method process, also have the yellow reactive dye of preparation in fiber or its textile printing and dyeing applications. Background technique [0002] With the improvement of living standards, people's requirements for textile products are getting higher and higher, so that the requirements for the performance of reactive dyes used in textile dyeing are becoming increasingly stringent. Reactive dyes must not only have excellent color fastness and dyeing performance, but also meet environmental protection requirements. Reactive yellow dye, as a variety with a large market share, requires good washing fastness and dyeing reproducibility, high lifting power and color fixation rate. In order to improve the dyeing performance ...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B67/20C09B67/26D06P1/38
CPCC09B67/0033C09B67/0073C09B67/0065D06P1/38
Inventor 秦杰峰李玲巩飞飞王猛王一民陈波
Owner ZHEJIANG YIDE CHEM
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