Preparation method and application of flame retardant dye

A technology of flame retardant dyes and azo dyes, applied in the preparation, dyeing, azo dyes and other directions of azo dyes, can solve problems such as energy consumption, achieve durable flame retardant performance, save raw material and equipment costs, and reduce finishing The effect of craftsmanship

Active Publication Date: 2017-01-11
苏州田园纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional flame retardant processing of textiles is carried out after the dyeing of textiles. The finishing method is mainly based on padding flame retardant working solution and then baking or coating finishing. It needs to go through multiple processes and consumes a lot of energy.

Method used

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  • Preparation method and application of flame retardant dye
  • Preparation method and application of flame retardant dye
  • Preparation method and application of flame retardant dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The chemical formula for preparing flame retardant dyes in the present embodiment is:

[0033]

[0034] Its synthetic method is carried out according to the following steps:

[0035] (1) Dissolve 0.01mol of sodium p-aminobenzenesulfonate in 50mL of water, add 0.012mol of sodium nitrite after cooling, stir, then pour this solution into a stirrer equipped with 25g of ice water and 5mL of hydrochloric acid (concentration 36 %) in the beaker, stirring, white powdery diazonium salt precipitates out. Add an appropriate amount of urea to the above solution until the potassium iodide test paper has no color, adjust the pH to 9-10 with aqueous sodium carbonate solution, add dropwise 50 mL of an aqueous solution containing 0.01 mol of sodium p-aminobenzenesulfonate in an ice-water bath, and react for 3 hours. After the above reaction is completed, ammonium sulfate is added for salting out, filtered, and dried to obtain a powdery yellow solid product: 2-amino-4', 5-disulfonic ...

Embodiment 2

[0046] The chemical formula of the flame retardant dye prepared in the present embodiment is as shown in embodiment one, and its synthetic method is carried out according to the following steps:

[0047] (1) Dissolve 0.02mol of sodium p-aminobenzenesulfonate in 50mL of water, add 0.025mol of sodium nitrite after cooling, stir, then pour this solution into a stirrer equipped with 50g of ice water and 10mL of hydrochloric acid (concentration 36 %) in the beaker, stirring, white powdery diazonium salt precipitates out. Add an appropriate amount of urea to the above solution until the potassium iodide test paper has no color, adjust the pH to 9-10 with aqueous sodium carbonate, and add 50 mL of an aqueous solution containing 0.02 mol of sodium p-aminobenzenesulfonate dropwise in an ice-water bath, and react for 3 hours. After the above reaction is completed, ammonium sulfate is added for salting out, filtered, and dried to obtain a powdery yellow solid product: 2-amino-4', 5-disul...

Embodiment 3

[0054] The chemical formula of the flame retardant dye prepared in the present embodiment is as shown in embodiment one, and its synthetic method is carried out according to the following steps:

[0055] (1) Dissolve 0.025mol of sodium p-aminobenzenesulfonate in 50mL of water, add 0.027mol of sodium nitrite after cooling, stir, then pour this solution into a stirrer equipped with 50g of ice water and 15mL of hydrochloric acid (concentration 36 %) in the beaker, stirring, white powdery diazonium salt precipitates out. Add an appropriate amount of urea to the above solution until the potassium iodide test paper has no color, adjust the pH to 9-10 with aqueous sodium carbonate solution, add dropwise 50 mL of an aqueous solution containing 0.025 mol of sodium p-aminobenzenesulfonate in an ice-water bath, and react for 3 hours. After the above reaction is completed, ammonium sulfate is added for salting out, filtered, and dried to obtain a powdery yellow solid product: 2-amino-4', ...

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Abstract

The present invention relates to the field of fine chemistry industry, particularly relates to a preparation method and applications of a fire retardation dye. The preparation steps comprise: (1) carrying out an acylation reaction on an acylation reagent containing a carbon-carbon double bond and an azo dye containing amino or hydroxyl so as to introduce the carbon-carbon double bond on the acylation reagent into the azo dye; and (2) carrying out an addition reaction on the carbon-carbon double bond on the azo dye obtained from the reaction and 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide so as to introduce the phosphaphenanthrene group into the azo dye. The prepared fire retardation dye of the present invention has characteristics of dyeing, fire retardation, operation step saving, resource saving, and energy source consumption saving.

Description

technical field [0001] The invention relates to the field of fine chemicals, in particular to a preparation method of a flame retardant dye, a preparation method of a flame retardant dye and an application thereof. Background technique [0002] According to the statistics of the annual fire reports of various countries in the world, fires caused by textiles account for about 20% of residential fires, and the number of people killed in fires caused by textiles accounts for 50% of the total number of deaths in residential fires. Fires caused by textiles are shocking. Therefore, in recent years, research and processing of flame-retardant textiles have emerged in an endless stream. The traditional flame retardant processing of textiles is carried out after the dyeing of textiles. The finishing method is mainly padding with flame retardant working solution and then baking or coating finishing. It needs to go through multiple processes and consumes a lot of energy. Products with...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B43/00C09B43/128C07F9/6571D06P1/10D06P3/04D06P3/24D06P3/82
Inventor 关晋平董永生陈国强陈威
Owner 苏州田园纺织科技有限公司
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