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Active light yellow LA and preparation process thereof

A preparation process and compound technology, applied in reactive dyes, dyeing methods, textiles and papermaking, etc., can solve problems such as inability to achieve, improve conversion rate, yield and purity, improve absolute color fixation rate and other various The effect of fastness

Active 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 reactive yellow M-3RE synthesized by the above process (maximum absorption wavelength Λmax is 414nm) has an absolute fixation rate of only 45-52% in the one-bath dyeing of polyester cotton at 110°C, which is low; and the light fastness is 3-4 grades , the washing fastness is only 3 grades, and the rubbing fastness is only 2-3 grades, which cannot meet the requirements of one-bath dyeing with disperse dyes

Method used

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  • Active light yellow LA and preparation process thereof
  • Active light yellow LA and preparation process thereof
  • Active light yellow LA and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] 1. Condensation reaction

[0052] In a 1000ml flask, add 50 parts by weight (parts by mass, 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 the pH with 13 parts of baking soda =2.0, temperature 0-10°C, react for 3 hours; add 12.1 parts of nicotinic acid to the primary condensation liquid that has reached the end point, stir evenly, raise the temperature to 40°C, adjust the pH to 5 with 10.5 parts of baking soda, and react for 4 hours; then Then add 20.6 parts of bismuth, raise the temperature to 90°C, adjust the pH to 2 with 5.8 parts of baking soda, and react for 6 hours; after the end point is reached, the jacket is cooled by 10-15°C to wait for diazo.

[0053] 2. Nitrogen induction reaction

[0054] Add 0.1 parts by weight of JS-C wetting agent (produced by Yunting, Jiangyin City) to the condensate that has cooled down to 10-15°C, add 20 par...

Embodiment 2

[0061] 1. Condensation reaction

[0062] Into a 1000ml flask, 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, 13.5 parts of baking soda to adjust PH=2.5, temperature 0-10 ℃, reacted for 3 hours; added 12.1 parts of nicotinic acid to the primary condensation liquid that reached the end point, stirred evenly, raised the temperature to 45°C, adjusted the pH to 5.5 with 10.8 parts of baking soda, and reacted for 4 hours; then added 20.65 parts of bismuth, Raise the temperature to 95°C, adjust the pH to 3 with 5.93 parts of baking soda, and react for 5.5 hours; after the end point is reached, the jacket is cooled by 10-15°C to wait for diazo.

[0063] 2. Nitrogen induction reaction

[0064] Add 0.1 parts by weight of JS-C wetting agent (produced by Yunting, Jiangyin City) to the condensate that has cooled down to 10-15°C, add 20 parts of ice to cool down to 5°...

Embodiment 3

[0068] 1. Condensation reaction

[0069] In a 1000ml flask, add 50 parts by weight of ice water, 18.5 parts of cyanuric chloride for beating for 1 hour, add 29.2 parts of para-ester industrial products for beating for 1-1.5 hours, 13.8 parts of baking soda to adjust PH=3.0, temperature 5-10 ℃, reacted for 3 hours; added 12.14 parts of nicotinic acid to the primary condensation liquid that reached the end point, stirred evenly, raised the temperature to 45℃, adjusted the pH to 5.5 with 10.85 parts of baking soda, and reacted for 4 hours; then added 20.7 parts of bismuth, Raise the temperature to 100°C, adjust the pH to 4.5 with 6.1 parts of baking soda, and react for 5 hours; after the end point is reached, the jacket is cooled by 10-15°C to wait for diazo.

[0070] 2. Nitrogen induction reaction

[0071] Add 0.1 parts by weight of JS-C wetting agent (produced by Yunting, Jiangyin City) to the condensate that has cooled down to 10-15°C, add 20 parts of ice to cool down to 5°C,...

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Abstract

The invention discloses active light yellow LA and a preparation process thereof. The active light yellow LA has a formula (I) structure. Active light yellow LA synthetized by the invention, and active black LA and active brown LA prepared can be dyed with disperse dyes through a single bath process, and the dyes conduct alkaline color fixation. The invention has the advantages that the pure caustic soda consumption is one eighth to one twentieth of the traditional consumption, the dyeing rate is low, dyeing defects are not easily caused, the dyeing temperature and the PH value are low, the hydrolysed dyes are less, the various fastnesses can be improved, the cloth cover cleaning property is high, the waste water discharging amount is less, the solubility is high, the substantivity is high, excellent compatibility and dyeing stability are achieved, the reproduction quality and the once dyeing rate are ensured, particularly, the absolute color fixation rate is higher than that of the active yellow M-3RE5 by 5% to 10%, and the light resistance, the washability and the fastness to rubbing are higher than those of the conventional variety by 1 to 2 grades.

Description

technical field [0001] The invention belongs to the field of fine chemical industry, and in particular relates to a compound which can be used as reactive bright yellow 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 f...

Claims

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Application Information

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IPC IPC(8): C07D401/14C09B62/51C09B67/22C09B67/24D06P1/384
Inventor 赵卫国苏金奇鞠苏华王国民
Owner TAIXING JINYUN DYESTUFF
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