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Red reactive dye mixture and preparation and application thereof

A technology of reactive dyes and mixtures, applied in the field of dyes, to achieve the effect of solving the problem of coloring and staining, low-cost formula, and good dyeing reproducibility

Active Publication Date: 2012-10-17
HUBEI COLOR ROOT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the difference in the structure of several dyes in general composite reactive dyes, there will be sensitivity to salinity, temperature and color fixing time during the dyeing process, resulting in color flowering and staining.

Method used

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  • Red reactive dye mixture and preparation and application thereof
  • Red reactive dye mixture and preparation and application thereof
  • Red reactive dye mixture and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Embodiment 1, dyestuff preparation

[0043] After beating 38.3 parts of 2-naphthylamine-3,6,8-trisulfonic acid for 1 hour, add hydrochloric acid and cool down to 6°C with ice, then add 30% sodium nitrite solution dropwise and carry out diazotization reaction under stirring, 2 After 1 hour, add 18.75 parts of m-semicarbazide through fully beating, and maintain T=14 ℃, pH=4.5 to carry out coupling reaction, until not detecting diazonium salt is reaction complete, obtains a kind of coupled compound, then the coupled compound is in Add 18.45 parts of fully ice-ground cyanuric chloride within 30 minutes for condensation reaction, maintain T=10°C, PH=3.5 for 4 hours, and finally add 10.5 parts of hydroxyethylethanolamine to the system, maintain T=45°C , pH=5 to react for 4 hours, then nano-membrane filtration, first filter with a plate and frame filter press, remove most of the inorganic salts and water and a small part of by-products, you can obtain the dyestuff (1) that mee...

Embodiment 2

[0045] Embodiment 2, dyestuff preparation

[0046] After beating 38.3 parts of 2-naphthylamine-1,5,7-trisulfonic acid for 1 hour, add hydrochloric acid and cool down to 6°C with ice, then add 30% sodium nitrite solution dropwise and carry out diazotization reaction under stirring, 2 After 1 hour, add 18.65 parts of m-acetamidoaniline through fully beating, and maintain T=14 ℃, pH=4.5 to carry out coupling reaction, until not detecting diazonium salt is reaction complete, obtains a kind of coupling compound, subsequently coupling compound in Add 13.6 parts of fully ice-ground cyanuric fluoride within 30 minutes for condensation reaction, maintain T=10°C, pH=3.5 for 4 hours, and finally add 10.5 parts of hydroxyethyl alcohol amine to the system to maintain T= React at 4.5°C and pH=5 for 4 hours, then filter with nano-membrane, first filter with a plate and frame filter press, remove most of the inorganic salts and water and a small part of by-products, and you can get the dye th...

Embodiment 3

[0048] Embodiment 3, dyestuff preparation

[0049]Beat 30.3 parts of 2-naphthylamine-3,6,-disulfonic acid for 1 hour, add hydrochloric acid and cool down to 6°C with ice, then add 30% sodium nitrite solution dropwise and carry out diazotization reaction under stirring for 2 hours Add 18.75 parts of metasemicarbazide through fully beating afterward, and maintain T=14 ℃, pH=4.5 to carry out coupling reaction, until detecting that diazonium salt is not reacted completely, obtain a kind of coupled compound, then the coupled compound is in 30 Add 18.45 parts of fully ice-ground cyanuric chloride within minutes to undergo condensation reaction, maintain T=10°C, pH=3.5 for 4 hours, and finally add 6.1 parts of ethanolamine to the system, maintain T=4.5°C, pH=5 React for 4 hours, then filter with nano-membrane, first filter with a plate and frame filter press, remove most of the inorganic salts and water and a small part of by-products, you can get the dye (1-3) that meets the general...

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Abstract

The invention relates to a red reactive dye mixture and preparation and application thereof, which are characterized in that: the red reactive dye mixture comprises dye of general formula (1) and dye of general formula (2), the proportion by weight between the two dyes is 63.6-60:28.7-30. The compound dye has excellent lifting power for dark colors, low-cost formula, and better dyeing reproducibility than ordinary commercial dyes, thus being suitable for a plurality of application processes.

Description

technical field [0001] The invention relates to a red reactive dye mixture and its preparation and use, belonging to the field of dyes. Background technique [0002] Due to the difference in the structure of several dyes in general composite reactive dyes, there will be sensitivity to salinity, temperature and color fixing time during the dyeing process, resulting in color flowering and staining. For this reason, dye workers have developed a variety of new composite reactive dyes to solve the color flower and staining, so that they have high color fixing rate and lifting power, and the economical production of products is good, which is beneficial to environmental protection. Contents of the invention [0003] The invention includes a red reactive dye mixture, which has excellent dark color lifting power and low-cost formula after it is used to dye or print fiber materials, and has better dyeing reproducibility than ordinary commercial dyes, and is suitable for many A dye...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/22D06P1/38
Inventor 罗润富
Owner HUBEI COLOR ROOT TECH CO LTD
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