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High-performance navy blue reactive dye composition and application thereof

A reactive dye, high-performance technology, applied in the direction of reactive dyes, azo dyes, organic dyes, etc., can solve the problems of low color fixation rate, navy blue dye solubility, shade, hue, and fastness properties that are difficult to control and meet. heavy metal pollution

Active Publication Date: 2019-02-01
江苏德美科化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the structure-determined nature, it is difficult for a navy blue dye with a single structure to regulate and meet market demand in terms of solubility, shade, hue, and fastness performance. Therefore, navy blue reactive dyes obtained by blending blue reactive dyes with other reactive dyes Dye mixtures are constantly being developed and marketed for their good applied color and application properties
Patent CN102115614 has reported a navy blue reactive dye composition and its dyeing application on fibers. The dye is composed of formazan (Formazan) dyes containing copper metal and disazo with H acid as the coupling component. The rubbing fastness is good, but the color fixation rate of this type of navy blue reactive dye is not high, usually lower than 73%, and this type of dye contains heavy metal elements, so there is a risk of heavy metal pollution
[0004] In recent years, with the requirements of energy saving, emission reduction and pollution reduction in the dye and printing and dyeing industries, higher requirements have been put forward for the performance of reactive dyes, especially the stability and color fixation rate. However, the navy blue reactive dyes currently on the market such as P2R , PBS, SPE, etc. are difficult to meet the requirements, therefore, the development of navy blue reactive dyes with good stability and high color fixation rate is imminent

Method used

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  • High-performance navy blue reactive dye composition and application thereof
  • High-performance navy blue reactive dye composition and application thereof
  • High-performance navy blue reactive dye composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] A high-performance navy blue reactive dye composition is prepared by mixing the compound represented by the general structural formula (I-1), the compound represented by the general formula (II-1) and the compound represented by the general formula (III-1).

[0074]

[0075]

[0076] Compounds shown in reactive dyes I-1, II-1 and III-1 are mixed according to mass percentages of 50%, 47% and 3%, to obtain navy blue reactive dyes; the obtained navy blue reactive dyes and diffusing agent (Methylnaphthalenesulfonic acid formaldehyde condensate, condensation degree is 4, sulfonation degree is 2), water-based polymer dustproof agent and Yuanming powder are 65%, 5%, 0.1% and 29.9% by mass percentage Mixed to obtain a commercial navy blue reactive dye.

[0077] Take 3g of the above-mentioned commercial dye, add 8g of urea, 2.5g of baking soda, 60g of sodium alginate paste, 1g of resist salt and 25.5g of water to make navy blue reactive printing paste, and print the rayon ...

Embodiment 2

[0104] A high-performance navy blue reactive dye composition, which is prepared by mixing the compound shown in the general structural formula (I-2), the compound shown in the general formula (II-2) and the compound shown in the general formula (III-2) into, and their mass percentages are respectively 46-53%, 43-49% and 2-5%.

[0105]

[0106] The reactive dyes I-2, II-2 and III-2 are blended according to the mass percentages of 51.5%, 45% and 3.5%, to obtain navy blue reactive dyes; the obtained navy blue reactive dyes and diffusing agent (Methyl naphthalene sulfonic acid formaldehyde condensate, condensation degree is 4, sulfonation degree is 2), water-based polymer dustproof agent and Yuanming powder are 75%, 5%, 0.1% and 19.9% ​​according to the mass percentage Proportionally mixed to obtain a commercial navy blue reactive dye.

[0107] Take 3g of the above-mentioned commercial dye, add 8g of urea, 2.5g of baking soda, 60g of sodium alginate paste, 1g of resist salt an...

Embodiment 3

[0111] A high-performance navy blue reactive dye composition is prepared by mixing the compound represented by the general structural formula (I-3), the compound represented by the general formula (II-3) and the compound represented by the general formula (III-3).

[0112]

[0113] The compounds shown in reactive dyes I-3, II-3 and III-3 are blended according to the mass percentages of 48%, 48% and 2%, to obtain navy blue reactive dyes; the obtained navy blue reactive dyes and diffusing agent (Methylnaphthalenesulfonic acid formaldehyde condensate, condensation degree is 4, sulfonation degree is 2), water-based polymer dustproof agent and Yuanming powder are 78%, 5%, 0.1% and 16.9% according to the ratio of mass percentage Mixed to obtain a commercial navy blue reactive dye.

[0114] Take 3g of the above-mentioned commercial dye, add 8g of urea, 2.5g of baking soda, 60g of sodium alginate paste, 1g of resist salt and 25.5g of water to make navy blue reactive printing paste,...

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PUM

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Abstract

The invention discloses a high-performance navy blue reactive dye composition and application thereof, and belongs to the technical field of reactive dyes. The high-performance navy blue reactive dyecomposition is prepared by mixing 46-53 wt% of a compound as shown in the general structural formula (I), 43-49 wt% of a compound as shown in the general formula (II) and 2-5 wt% of a compound as shown in the general formula (III). The preparation of the compound as shown in the general formula (I) comprises the steps of diazotization reaction and coupling reaction; the preparation of the compoundas shown in the general formula (II) comprises the steps of chromophore preparation and double condensation reaction; and the preparation of the compound as shown in the general formula (III) comprises steps of double condensation reaction, diazotization reaction and coupling reaction. When the dye composition is applied, the dye composition is mixed with a dispersing agent, a dust-proof agent and anhydrous sodium sulphate to prepare a commercial dye, which is applied to dyeing and printing of rayon fabric. The navy blue reactive dye composition has high fixation rate, good stability and excellent process tolerance; and the structure of a spray drying device used in the preparation method is optimized and the application value is high.

Description

technical field [0001] The invention relates to the technical field of reactive dyes, in particular to a high-performance navy blue reactive dye composition and its application. Background technique [0002] Navy blue reactive dye is an important kind of reactive dye, widely used in the dyeing of cotton, wool and other fabrics. Navy blue reactive dyes usually have a single-structure disazo reactive dye and a blended reactive dye composition based on blue dyes. For example, the reactive dye Delongsu Navy G for wool is based on H acid (1-amino-8- Naphthol-3,6-disulfonic acid) is the coupling component, and the reaction product of bromoacryloyl chloride and sodium 2,4-diaminobenzenesulfonate is a disazo reactive dye of the diazo component, and its general structural formula is : [0003] However, due to the structure-determined nature, it is difficult for a navy blue dye with a single structure to regulate and meet market demand in terms of solubility, shade, hue, and fastn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/24C09B67/36C09B62/513C09B62/245C09B62/22D06P1/382D06P1/384
CPCC09B62/22C09B62/245C09B62/513C09B67/004C09B67/0047C09B67/0072C09B67/0079D06P1/382D06P1/384
Inventor 王斯亮周建新王小军刘儒初
Owner 江苏德美科化工有限公司
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