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NK-BB red dye special for nylon, and preparation method thereof

A technology of NK-BB and red dye, applied in the field of nylon reactive dye and its preparation

Inactive Publication Date: 2014-01-29
安徽省凤阳染料化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Acid dyes can no longer meet the development of the times

Method used

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  • NK-BB red dye special for nylon, and preparation method thereof
  • NK-BB red dye special for nylon, and preparation method thereof
  • NK-BB red dye special for nylon, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] (1) Dissolution of gamma acid

[0062] Add 120 milliliters of water in the 500 milliliter beaker, add 23.9 grams of 100% gamma acid then, adjust pH=6.5-7.0 with 30% sodium hydroxide solution under stirring, material is dissolved, clarification, the volume of adjusting solution is 160 milliliters, makes The mass volume fraction of the solution was 15% to obtain a gamma acid solution.

[0063] (2) Condensation reaction

[0064] Directly adjust the temperature of the gamma acid solution to 5-7°C with ice and water, adjust the mass volume fraction of the solution to 10%, then maintain pH=6-6.5 with 96% sodium bicarbonate, maintain the temperature at 5-10°C with direct ice, and use time After 50 minutes, add 32.6 g of 100% 2,3-dibromopropionyl chloride and acetone mixture, maintain the temperature at 5-10° C. and pH value at 6-6.5, and react for 2 hours to obtain a condensation liquid.

[0065] (3) Diazotization reaction

[0066]Add 200 ml of water to an 800 ml beaker, th...

Embodiment 2

[0075] (1) Dissolution of gamma acid

[0076] Add 120 ml of water to a 500 ml beaker, then add 23.9 g of 100% gamma acid, and adjust the pH to 6.5-7 with 30% sodium hydroxide solution under stirring to dissolve and clarify the material. Adjust the volume of the solution to 160 mL. Make the mass volume fraction of the solution 15%

[0077] (2) Condensation reaction

[0078] Adjust the temperature of the gamma acid solution to 5-7°C with direct ice and water, adjust the mass volume fraction of the solution to 10%, then maintain pH=6-6.5 with 96% sodium bicarbonate, maintain the temperature at 5-10°C with direct ice, It takes 50 minutes to add 32.6 g of 100% 2,3-dibromopropionyl chloride and acetone mixture, maintain the temperature at 5-10° C. and pH value at 6-6.5, and react for 2 hours to obtain a condensation liquid.

[0079] (3) Diazotization reaction

[0080] Add 200 ml of water to an 800 ml beaker, then add 28.1 g of 100% meta-ester, and stir for 15 minutes. Another 1...

Embodiment 3

[0089] (1) Dissolution of gamma acid

[0090] Add 120 ml of water to a 500 ml beaker, then add 23.9 g of 100% H acid, and adjust the pH to 6.5-7 with 30% sodium hydroxide solution under stirring to dissolve and clarify the material. Adjust the volume of the solution to 160 mL. Make the mass volume fraction of the solution 15%

[0091] (2) Condensation reaction

[0092] Adjust the temperature of the gamma acid solution to 5-7°C with direct ice and water, adjust the mass volume fraction of the solution to 10%, then maintain pH=6-6.5 with 96% sodium bicarbonate, maintain the temperature at 5-10°C with direct ice, It takes 50 minutes to add 32.6 g of 100% 2,3-dibromopropionyl chloride and acetone mixture, maintain the temperature at 5-10° C. and pH value at 6-6.5, and react for 2 hours to obtain a condensation liquid.

[0093] (3) Diazotization reaction

[0094] Add 200 ml of water to an 800 ml beaker, then add 31.1 g of 100% 2-methoxy-4-β-ethylsulfone sulfate aniline, and sti...

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Abstract

The invention relates to a NK-BB red dye special for nylon, and a preparation method thereof. The NK-BB red dye special for the nylon is a compound having a structure represented by the following general formula (I), wherein R1 in the general formula (I) is selected from H, alkyl, alkoxy or -SO3M; R2 in the general formula (I) is selected from H, alkyl or alkoxy; R3 in the general formula (I) is selected from H or -COCHBrCH2Br; Z in the general formula (I) is selected from -SO2C2H4OSO3M or a condensation compound of monochlorotriazinyl; M in the general formula (I) is selected from H or an alkali metal. According to the present invention, environmental pollution is reduced. The NK-BB red dye special for the nylon and the preparation method thereof have advantages of low cost of raw materials, high solubility, bright color, excellent application performance and convenient operation. In addition, the NK-BB red dye special for the nylon has strong applicability.

Description

technical field [0001] The invention relates to a nylon reactive dye and a preparation method thereof, in particular to a nylon-specific NK-BB red dye and a preparation method thereof. technical background [0002] The dyes generally used for dyeing nylon are acid dyes, acid mordant dyes and metal complex dyes. Because the materials dyed with these types of dyes have poor fastness, the shade is not very bright, and it will cause troubles to the environment. In the 21st century, due to environmental and ecological constraints, the requirements for color uptake rate, color fixation rate and dyeing wastewater are getting higher and higher. Acid dyes can no longer meet the development of the times. Contents of the invention [0003] In order to solve the problems of the technologies described above, the invention provides a special NK-BB red dye for nylon, which is a compound with the following general formula (I) structure: [0004] [0005] where: R 1 is H, alkyl, alk...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B29/30C09B67/36D06P1/04D06P3/24
Inventor 李志华苏长湘吕建平
Owner 安徽省凤阳染料化工有限公司