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Activity-brilliant-red LA and preparation method thereof

A technology of reactive brilliant red and reactive bright yellow, applied in reactive dyes, dyeing methods, textiles and papermaking, etc., can solve problems such as inability to achieve, achieve high directness, improve various fastnesses, and prevent color and flower effects

Inactive Publication Date: 2012-07-18
TAIXING JINYUN DYESTUFF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dyestuff synthesized by the above-mentioned process has only 50-55% absolute fixation rate at 110 ℃ of one-bath dyeing polyester cotton, which is on the low side; and the washing fastness is only 3 grades, and the rubbing fastness is only 2-3 grades, which cannot reach the same level as Requirements for one-bath dyeing of disperse dyes

Method used

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  • Activity-brilliant-red LA and preparation method thereof
  • Activity-brilliant-red LA and preparation method thereof
  • Activity-brilliant-red LA and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0070] 1. Condensation reaction

[0071] In a 1000ml beaker, add 50 parts by weight (parts by weight, the same below) of ice water, 18.5 parts of cyanuric chloride for beating for 1 hour, add 29.2 parts of para-ester industrial products for beating for 1-1.5 hours, and adjust PH with 13 parts of baking soda = 2.5, temperature 0-10°C, react for 3 hours; add 33.7 parts of H acid powder to the primary condensation liquid that has reached the end point, stir evenly, heat up to 40°C, adjust PH=5 with 10.8 parts of baking soda, and react for 4 hours; Then add 12 parts of nicotinic acid, raise the temperature to 80°C, adjust the pH to 3.5 with 5.3 parts of baking soda, and react for 6 hours; after the end point is reached, cool down to 20-25°C for coupling.

[0072] 2. Nitrogen induction reaction

[0073] Add 29.6 parts by weight of 1,5-disulfonic acid-2-naphthylamine to 40 parts of ice water and 0.1 part of JS-C wetting agent for beating for 1 hour, add 11.3 parts of hydrochloric a...

Embodiment 2

[0079] 1. Condensation reaction

[0080] Into a 1000ml beaker, add 50 parts by weight of ice water, 18.5 parts of cyanuric chloride for beating for 1 hour, add 29.2 parts of para-ester industrial products for beating for 1-1.5 hours, 13.4 parts of baking soda to adjust PH=3.0, temperature 0-10 ℃, react for 3 hours; add 33.7 parts of H acid powder to the primary condensation liquid that has reached the end point, stir evenly, then raise the temperature to 40 ℃, adjust the pH to 4.5 with 10.6 parts of baking soda, and react for 4 hours; then add 12 parts of nicotinic acid , raise the temperature to 80°C, adjust the pH to 3.5 with 5.3 parts of baking soda, and react for 6 hours; after the end point is reached, cool down to 20-25°C for coupling.

[0081] 2. Nitrogen induction reaction

[0082] Add 29.6 parts by weight of 1,5-disulfonic acid-2-naphthylamine to 40 parts of ice water and 0.1 part of JS-C wetting agent for beating for 1 hour, add 11.3 parts of hydrochloric acid and 6...

Embodiment 3

[0086] 1. Condensation reaction

[0087] Into a 1000ml beaker, add 50 parts by weight of ice water, 18.5 parts of cyanuric chloride for beating for 1 hour, add 29.2 parts of para-ester industrial products for beating for 1-1.5 hours, 13.8 parts of baking soda to adjust PH=3.5, temperature 0-10 ℃, react for 3 hours; add 33.5 parts of H acid powder to the primary condensation liquid that has reached the end point, stir evenly, heat up to 40 ℃, adjust PH=5.5 with 10.8 parts of baking soda, and react for 4 hours; then add 12.2 parts of nicotinic acid , raise the temperature to 90°C, adjust the pH to 4.5 with 5.9 parts of baking soda, and react for 6 hours; after the end point is reached, cool down to 20-25°C for coupling.

[0088] 2. Nitrogen induction reaction

[0089] Add 29.4 parts by weight of 1,5-disulfonic acid-2-naphthylamine to 40 parts of ice water and 0.1 part of JS-C wetting agent for beating for 1 hour, add 11.3 parts of hydrochloric acid and 6.75 parts of sodium nitr...

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Abstract

The invention discloses an activity-brilliant-red LA and a preparation process of the activity-brilliant-red LA. The activity-brilliant-red LA has the structure of the formula (I). The activity-brilliant-red 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 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-brilliant-red LA is higher than that of the existing activity-brilliant-red M-3BE by 5-10%, and the washable resistance and the rubfastness of the activity-brilliant-red 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 which can be used as reactive brilliant red 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, m...

Claims

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Application Information

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IPC IPC(8): C07D401/04C09B62/51C09B67/22C09B67/24D06P1/384
Inventor 赵卫国苏金奇鞠苏华王国民
Owner TAIXING JINYUN DYESTUFF
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