Yellow reactive dye and preparation method thereof
A reactive dye, yellow technology, applied in the field of yellow reactive dyes, can solve the problems of general structure color development, color flower appearance, color point, poor washability, etc.
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Embodiment 1
[0070] Embodiment 1: a kind of yellow reactive dye, is made up of the compound of simple formula (1-1) structure:
[0071]
[0072] (1-1) Its synthetic method step of the compound of structure is as follows:
[0073] 1. Diazo reaction: Add 23g of Tuolic acid into 100g of water and 50g of crushed ice solution for beating for 1 hour. Then add 14g hydrochloric acid (30%), after stirring for 1 minute, 26g of the 30% sodium nitrite solution that dissolves clear is added dropwise in the good tunic acid of beating with the time of 20 minutes and carry out diazotization reaction, dropwise process Control the temperature at 15-20°C, and control the pH value at 1.0-1.2. And make the starch potassium iodide test paper microscopically blue, and the Congo red test paper microscopically blue. After the sodium nitrite solution is added dropwise, keep the temperature at 15-20° C., control the pH value at 1-1.2, stir and react for 30 minutes, and then balance the excess sodium nitrite wit...
Embodiment 2
[0086] Embodiment 2: a kind of yellow reactive dye, is made up of the compound of simple formula (1-2) structure:
[0087]
[0088] (1-2) Its synthetic method step of the compound of structure is as follows:
[0089] 1. Diazo reaction: Add 40g of sulfonated turezic acid into 100g of water and 50g of crushed ice solution for beating for 1 hour. Then add 15g of hydrochloric acid (30%), after stirring for 1 minute, add 26g of the 30% sodium nitrite solution of the solution dropwise to the well-beaten sulfonated tunic acid for 20 minutes to carry out the diazotization reaction, dropwise During the process, the temperature is controlled at 8-10°C, and the pH value is controlled at 1.0-1.2. And make the starch potassium iodide test paper microscopically blue, and the Congo red test paper microscopically blue. After the sodium nitrite solution is added dropwise, keep the temperature at 8-10°C, control the pH value at 1-1.2, stir and react for 30 minutes, and then balance the exc...
Embodiment 3
[0101] Embodiment 3: a kind of yellow reactive dye, is made up of the compound of simple formula (1-3) structure:
[0102]
[0103] (1-3) Its synthetic method step of the compound of structure is as follows:
[0104] 1. Diazo reaction: Add 32g of amino acid C into 100g of water and 50g of crushed ice solution for beating for 1 hour. Then add 15g hydrochloric acid (30%), after stirring for 1 minute, 26g of the 30% sodium nitrite solution that will be dissolved is added dropwise in the amino acid C that has been beaten for 20 minutes to carry out the diazotization reaction. The temperature is controlled at 8-10°C, and the pH value is controlled at 1.0-1.2. And make the starch potassium iodide test paper microscopically blue, and the Congo red test paper microscopically blue. After the sodium nitrite solution is added dropwise, keep the temperature at 8-10°C, control the pH value at 1-1.2, stir and react for 30 minutes, and then balance the excess sodium nitrite with 0.5 g o...
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