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Blue reactive dyes for wool and preparation method thereof

A technology of reactive dyes and blue, applied in the field of reactive dyes for wool and its preparation, to achieve the effects of eliminating the generation of waste water and waste residue, promoting environmental protection, and excellent solubility

Inactive Publication Date: 2009-04-29
TIANJIN DEK CHEM
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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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  • Blue reactive dyes for wool and preparation method thereof
  • Blue reactive dyes for wool and preparation method thereof
  • Blue reactive dyes for wool and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] 1. Ingredients list:

[0057] Raw material name Molecular weight Molar ratio Percentage dosage (Kg) Feeding amount (kmol)

[0058] Copper phthalocyanine 576 1 341.3 0.5924

[0059] Chlorosulfonic acid 116.5 25.1 1732.4 0.5924

[0060] Thionyl chloride 119 8.4 592.2 0.5924

[0061] Monoethanolamine 61 2 73 0.5924

[0062] Fuming sulfuric acid 98 151 8767.1 0.5924

[0063] Note: The amount of oleum is converted based on the actual amount of the dry product of the condensate.

[0064] 2, dyestuff preparation technology of the present invention operates as follows:

[0065] a. Chlorosulfonation reaction, ice out

[0066] Add 1,750 kg of chlorosulfonic acid to the sulfonation tank. Circulate cold water to lower the temperature, and control the temperature to 40-50°C. It took 2 hours to add copper phthalocyanine. Adjust the temperature to 128°C, maintain the temperature at 128-130°C, and react for 4 hours. Adjust the temperature to 65-70°C, maintain the temperature at...

Embodiment 2

[0088] Dye preparation technology of the present invention operates as follows:

[0089] a. Chlorosulfonation reaction, ice out

[0090] Add 1,750 kg of chlorosulfonic acid to the sulfonation tank. Circulate cold water to lower the temperature, and control the temperature to 40-50°C. It took 2 hours to add copper phthalocyanine. Adjust the temperature to 128°C, maintain the temperature at 128-130°C, and react for 4 hours. Adjust the temperature to 65-70°C, maintain the temperature at 65-70°C, and add 595 kg of thionyl chloride in 2 hours. Maintain the temperature at 65-70°C and react for 2 hours. Adjust the temperature to 90°C, maintain the temperature at 90-95°C, and react for 1 hour. Adjust the temperature to 105°C. Maintain the temperature at 105-110°C and react for 1 hour.

[0091] Adjust the temperature to 20-25°C, add the obtained chlorosulfonation feed liquid into the ice-out tank in a thin stream, and control the temperature. Over 2 hours, the chlorosulfonation f...

Embodiment 3

[0108] Dye preparation technology of the present invention operates as follows:

[0109] a. Chlorosulfonation reaction, ice out

[0110] Add 1,750 kg of chlorosulfonic acid to the sulfonation tank. Circulate cold water to lower the temperature, and control the temperature to 40-50°C. It took 2 hours to add copper phthalocyanine. Adjust the temperature to 128°C, maintain the temperature at 128-130°C, and react for 4 hours. Adjust the temperature to 65-70°C, maintain the temperature at 65-70°C, and add 595 kg of thionyl chloride in 2 hours. Maintain the temperature at 65-70°C and react for 2 hours. Adjust the temperature to 90°C, maintain the temperature at 90-95°C, and react for 1 hour. Adjust the temperature to 105°C. Maintain the temperature at 105-110°C and react for 1 hour.

[0111] Adjust the temperature to 20-25°C, add the obtained chlorosulfonation feed liquid into the ice-out tank in a thin stream, and control the temperature. Over 2 hours, the chlorosulfonation f...

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Abstract

The invention discloses blue wool reactive dye and a preparation method thereof. The general formula of the dye is as shown (on the lower right). The preparation method for the blue reactive dye comprises the following steps: copper phthalocyanine, a chlorosulfonic acid, thionyl chloride, ethanolamine and oleum are taken as main raw materials, and the blue wool reactive dye is prepared by chlorosulfonation, condensation, esterification, improvement of the concentration of the dye, adjustment of the chromatic light, adjustment of the strength, drying and packaging. The blue wool reactive dye obtained has higher reactivity, superior solubility, colorful chromatic light, good lightfastness performance and high exhaustion rate and fixation rate, and does not contain free metal ions and chemical raw materials which are strictly prohibited to be used. By adoption of the pre-mixing technology after film treatment, waste water and waste residue can be prevented from being generated, so that the blue wool reactive dye greatly promotes environmental protection.

Description

technical field [0001] The invention relates to a reactive dye for wool and a preparation method thereof, in particular to a blue reactive dye for wool and a preparation method thereof. Background technique [0002] Now generally dyeing wool and cashmere, the dyes used 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] The technical problem to be solved by the present invention is to provide a blue reactive dye for wool that can reduce environmental pollution, has low raw material cost, high product solubility, bright color, excellent application ...

Claims

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Application Information

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IPC IPC(8): C09B62/537D06P3/10
Inventor 张兴华苏长湘
Owner TIANJIN DEK CHEM
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