Reactive orange dye and preparation method thereof

A reactive orange and dye technology, applied in the field of dyes, can solve the problems of unfavorable deep dyeing and low dye fixation rate, and achieve the effects of good salt and alkali resistance, high solubility and strong reactivity

Inactive Publication Date: 2013-01-30
无锡润新染料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, reactive orange dyes use the dye structure of the parent material coupled with aromatic amine diazonium salt and J acid, which is a single reactive group (C.I. reactive orange 72) or a double reactive group dye (such as C.I. reactive orange 122). This type of dye is solid The color rate is low, which is not conducive to dyeing dark colors, and there are certain defects in performance

Method used

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  • Reactive orange dye and preparation method thereof
  • Reactive orange dye and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] a) Add 1 mole of 25% para-ester solution with a pH of 6.0 to 7.0, adjust the pH to 7.5 to 8.0 with soda ash, add 1 mole of 30% sodium nitrite solution, stir well, and control it for 1 hour to evenly add to Use 2.5 moles of hydrochloric acid and ice water in a reaction kettle, under stirring, control the temperature at 0-5°C, keep a slight excess of nitrous acid, and balance it with sulfamic acid after reacting for 0.5 hours. Add sodium acetate to adjust to PH3.0~3.5, set aside.

[0022] b) Prepare 1.01 moles of sulfonated J acid into a solution with a concentration of 20% and a pH of 6.5~7.0, add ice and the first part of quantitative liquid caustic soda (2 moles) at a temperature of 3-5°C, quickly add diazonium salt, and add to Halfway through, add the second part of liquid caustic soda (1 mole) at the same time, control the temperature at 10-12°C, add PH=7.8-8.1, and react for 3 hours to measure the end point of diazo disappearance. Adjust the pH to 5.5~6.0 with hydr...

Embodiment 2

[0026] In the example 1a), the para-ester component is changed to the meta-ester, and other reaction procedures and proportioning ratios are unchanged to obtain a novel active orange dye solution with a chloro-s-triazine and vinyl sulfone active groups in the molecular structure. Nanofiltration membrane concentration (detection after recrystallization, m / z: 1729.80), continue to add dye solution according to the proportion of 15% of the weight after drying, add Yuanming powder, and 2% dustproof agent for spray drying, to obtain commercial dyes .

[0027] The dye can be used in exhaust dyeing, continuous pad dyeing, cold batching and wet short steaming process, moderate reactivity, high product solubility, 20°C solubility greater than 200g / l, 1 / 1 dyeing depth: light fastness level 5, soaping fastness 4-5 grades, perspiration fastness 4~5 grades, chlorine water immersion fastness grade 4, dry rubbing fastness 4~5 grades, wet rubbing fastness 4 grades, ironing fastness grade 4, p...

Embodiment 3

[0029] Cool the color base of the dye in Example 1b) to 0°C, add cyanuric fluoride, keep the temperature at 0~2°C, use 20% soda ash to keep the pH value at 6.0~6.5, add time for 1 hour, and keep the conditions after adding Reaction, control the disappearance of chromophore as the end point. Added 1,3-diaminobenzoic acid, keep pH6.5~7.0 with dry powder baking soda, heat up to 25~35℃, keep pH reaction for 4 hours, pH is stable, used for concentration and purification of nanofiltration membrane, cyanuric fluoride and 1,3-diaminobenzoic acid actual dosage is 1.04 moles and 0.52 moles of color and yield respectively.

[0030] After drying the dye solution, add sodium lignosulfonate and 3% dustproof agent according to the mass ratio of 25%, and spray dry to obtain commercial dyes.

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Abstract

The invention discloses a reactive orange dye and a preparation method thereof. The structure of the reactive orange dye is shown as a formula I, wherein X is Cl or F; and vinyl sulfone sulfate group is at a para-position or a meta-position of phenyl. The invention discloses a novel composite reactive orange dye. A dye structure with four active groups is adopted, and the reactive orange dye is prepared by compounding solutions according to proportion, performing standardization and spray-drying. The product is high in solubility and bright in color, and can be used for dyeing a dark color, the solubility is more than 200g / l, the color fastness reaches 90%, and the dyeing buildup is good; and the reactive orange dye is high in reactivity and good in saline-alkaline tolerance stability, and is suitable for common dip dyeing, pad dyeing, and pollution-free dyeing and finishing processes such as cold batch dyeing and wet short-steaming dyeing.

Description

technical field [0001] The invention belongs to the technical field of dyes, and relates to a novel composite reactive orange dye and a manufacturing method thereof. Background technique [0002] Generally, reactive orange dyes use the dye structure of the parent material coupled with aromatic amine diazonium salt and J acid, which is a single reactive group (C.I. reactive orange 72) or a double reactive group dye (such as C.I. reactive orange 122). This type of dye is solid The color rate is low, which is not conducive to dyeing dark colors, and there are certain defects in performance. Contents of the invention [0003] The purpose of the present invention is a novel composite reactive orange dye developed for the current printing and dyeing industry for high fixation rate, high solubility, strong process applicability, energy saving and environmental protection requirements of reactive dyes. It has the characteristics of high solubility, especially good solubility at l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/513C09B67/24
Inventor 史锦峰曾建徽任争艳
Owner 无锡润新染料有限公司
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