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Activity-deep-blue LA and preparation process thereof

A compound, hydrochloric acid technology, applied in reactive dyes, dyeing methods, textiles and papermaking, etc., can solve problems such as unreachable, environmental pollution, etc., and achieve the effects of high directness, good cloth surface cleaning, and not easy to color.

Active Publication Date: 2015-06-03
TAIXING JINYUN DYESTUFF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of waste water is produced in the preparation process of the above-mentioned two kinds of blue dyes, causing environmental pollution; the absolute fixation rate of the dyestuff synthesized at the same time has only 55-60%, on the low side; Only 2-3 grades, can not meet the requirements of one-bath dyeing with disperse dyes

Method used

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  • Activity-deep-blue LA and preparation process thereof
  • Activity-deep-blue LA and preparation process thereof
  • Activity-deep-blue LA and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074] 1. Nitrogen and acid couple reaction

[0075] In a 1000ml beaker, add an appropriate amount of 45 parts (1 part is 1g, the same below) of ice water, 17.3 parts of sodium p-aminobenzenesulfonate and 0.2 parts of accelerator for beating for 1 hour, add 20 parts of ice to cool down to 5 ° C, add 30.4 Part of hydrochloric acid and 7.1 parts of sodium nitrite for diazonium reaction, control the temperature at 0-10°C for 1 hour, and use a small amount of sulfamic acid to eliminate the slight excess of nitrous acid.

[0076] Add 341 parts of 10% H acid solution to the diazonium salt under stirring, control the temperature to less than 5°C, add time for 1.5 hours, control the temperature at 5°C to react for 20 hours until the diazonium salt disappears, use 10% soda water to adjust PH=6.5, dissolve the alkali couple.

[0077] 2. Condensation reaction

[0078] In a 1000ml flask, add 50 parts by weight of ice water, 18.5 parts of cyanuric chloride for beating for 1 hour, add 29....

Embodiment 2

[0087] 1. Nitrogen and acid couple reaction

[0088] In a 1000ml beaker, add an appropriate amount of 45 parts of ice water, 17.6 parts of sodium p-aminobenzenesulfonate and 0.2 parts of accelerator for beating for 1 hour, add 20 parts of ice to cool down to 5 °C, add 30.4 parts of hydrochloric acid and 7.3 parts of sodium nitrite for For diazo reaction, control the temperature at 5°C for 1 hour, and use a small amount of sulfamic acid to eliminate the slight excess of nitrous acid.

[0089] Under stirring, add a concentration of 340 parts of 10% H acid solution to the diazonium salt in a trickle, control the temperature to be less than 5°C, and add for 2 hours. After the addition, control the temperature at 5°C and react for 20 hours until the diazonium salt disappears. 10% soda water to adjust PH=6.5, dissolve the alkali couple.

[0090] 2. Condensation reaction

[0091] In a 1000ml flask, add 50 parts by weight of ice water, 18.5 parts of cyanuric chloride for beating for...

Embodiment 3

[0097] 1. Nitrogen and acid couple reaction

[0098] In a 1000ml beaker, add an appropriate amount of 45 parts of ice water, 18.1 parts of sodium p-aminobenzenesulfonate and 0.2 parts of accelerator for beating for 1 hour, add 20 parts of ice to cool down to 5 °C, add 30.4 parts of hydrochloric acid and 7.5 parts of sodium nitrite for For diazonium reaction, control the temperature at 0-10°C for 1 hour, and use a small amount of sulfamic acid to eliminate the slight excess of nitrous acid.

[0099] Under stirring, add 339 parts of 10% H acid solution into the diazonium salt in a trickle, control the temperature to be less than 5°C, and add for 2 hours. After the addition, control the temperature at 5°C and react for 20 hours until the diazonium salt disappears. 10% soda water to adjust PH=6.5, dissolve the alkali couple.

[0100] 2. Condensation reaction

[0101] In a 1000ml flask, add 50 parts by weight of ice water, 18.5 parts of cyanuric chloride for beating for 1 hour, a...

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Abstract

The invention discloses an activity-deep-blue LA and a preparation process of the activity-deep-blue LA. The activity-deep-blue LA has the structure of the formula (I). The activity-deep-blue LA synthesized by the preparation process has the advantages that subalkaline fixation is realized and the dosage of sodium carbonate is only 1 / 8-1 / 20 of the traditional dosage of the sodium carbonate, the dyeing rate is low and the dyeing defect cannot be caused easily, the dye hydrolyzing amount is few, and the firmness in various items can be improved, the speed is quick, the time is saved and the safety is achieved, the cloth cleaning property is good, and the waste water discharging amount is few; the dissolvability and the substantivity are high, the compatibility is good and the dyeing is stable, the repeatability and the one-time dyeing rate can be ensured, and the like, particularly, the fixation rate of the activity-deep-blue LA is higher than that of the existing activity-deep-blue M-2GE and activity blue KE-R by 5-10%, and the washable resistance and the rubfastness of the activity-deep-blue LA are higher than those of the existing product by 1-2 levels.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to a compound that can be used as an active dark blue LA low-alkali dye and a preparation method thereof. Background technique [0002] With the rapid development of science and technology and the continuous improvement of human living standards, especially the protection of the ecological environment has received unprecedented attention, the modern textile industry has developed rapidly, and the composition and structure of textiles have undergone significant changes. , wool, silk, natural fibers or polyester, acrylic, viscose and other chemical fibers, and products composed of one or two types of fibers have developed into products composed of multiple fibers. Many textiles are composed of 7 to 8 types of fibers. There are three ways to combine the fiber composition in textiles, that is, through spinning, blending and weaving or interweaving, multi-component fibers, multi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D401/04C09B62/513C09B67/22C09B67/24D06P1/384
Inventor 赵卫国苏金奇鞠苏华王国民
Owner TAIXING JINYUN DYESTUFF
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