Water-soluble dye coupled nano carbon black and preparation method thereof

A technology of water-soluble dyes and nano-carbon black, which is applied in the direction of nanotechnology, nanotechnology, and nanotechnology for materials and surface science, can solve problems such as easy agglomeration, color deviation of printed matter, and low production efficiency, and achieve improvement Effects of hiding power and gloss, improvement of storage stability, and enhancement of dispersibility

Active Publication Date: 2021-02-12
青岛黑猫新材料研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is such a problem in such an operation: since the blue dye is soluble in the ink system, after the ink is stored, sprayed or coated, the phenomenon of dye migration and surface enrichment will easily lead to bluishness after the ink is cured , causing color deviation in printed matter
[0004] At the same time, due to the large specific surface area of ​​nano-carbon black, it is very easy to agglomerate during storage, resulting in an increase in particle volume. When it is actually used in ink, it takes a long time, high-strength shearing or sanding to disperse, resulting in low production efficiency and energy consumption. high

Method used

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  • Water-soluble dye coupled nano carbon black and preparation method thereof
  • Water-soluble dye coupled nano carbon black and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of water-soluble dye coupling type nano carbon black, its preparation method is:

[0024] (1) Disperse the nano-carbon black in pure water of 3 times its mass multiple, and stir evenly;

[0025] (2) Add 1% hydrogen peroxide of nano-carbon black mass, after uniform dispersion, heat up to 40°C, and stir for 50min;

[0026] (3) Then add the water-soluble blue dye of nano carbon black quality 0.2‰, and disperse evenly;

[0027] (4) Add a silane coupling agent of 1% by mass of nano-carbon black, adjust the temperature to 55° C., and react for 1 h;

[0028] (5) After the reaction is completed, continue to add 1% gum arabic of the nano-carbon black quality, after the dispersion is uniform, spray drying under reduced pressure, and the gained is the water-soluble dye-coupled nano-carbon black;

[0029] (6) Sealed packaging, waterproof storage, spare.

[0030] The particle size of the nano-carbon black is 40nm.

[0031] The water-soluble blue dye described in step (3) ...

Embodiment 2

[0035] A kind of water-soluble dye coupling type nano carbon black, its preparation method is:

[0036] (1) Nano carbon black is dispersed in the pure water of its mass multiple 4 times, and stir;

[0037] (2) Add 3% hydrogen peroxide of nano-carbon black mass, after uniform dispersion, heat up to 45°C, and stir for 40min;

[0038] (3) Then add the water-soluble blue dye of nano carbon black quality 0.5‰, and disperse evenly;

[0039] (4) Add a silane coupling agent of 2% by mass of nano-carbon black, adjust the temperature to 50° C., and react for 1.5 hours;

[0040] (5) After the reaction is completed, continue to add the gum arabic of 1.5% of the nano-carbon black quality, after the dispersion is uniform, spray dry under reduced pressure, and the gained is the water-soluble dye-coupled nano-carbon black;

[0041] (6) Sealed packaging, waterproof storage, spare.

[0042] The particle size of the nano-carbon black is 40nm.

[0043] The water-soluble blue dye described in ...

Embodiment 3

[0047] A kind of water-soluble dye coupling type nano carbon black, its preparation method is:

[0048] (1) Nano carbon black is dispersed in the pure water of its mass multiple 5 times, and stir;

[0049] (2) Add 5% hydrogen peroxide of nano-carbon black mass, after uniform dispersion, heat up to 50°C, and stir for 30min;

[0050] (3) Then add the water-soluble blue dye of nano carbon black quality 0.8‰, and disperse evenly;

[0051] (4) Add 3% silane coupling agent of nano-carbon black mass, adjust the temperature to 45° C., and react for 2 hours;

[0052] (5) After the reaction is completed, continue to add the gum arabic of 2% of the nano carbon black quality, after the dispersion is uniform, spray drying under reduced pressure, and the gained is the water-soluble dye-coupled nano carbon black;

[0053] (6) Sealed packaging, waterproof storage, spare.

[0054] The particle size of the nano-carbon black is 40nm.

[0055] The water-soluble blue dye described in step (3) ...

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Abstract

The invention discloses a technical method for improving the covering power and hue plumpness of nano carbon black by adding a water-soluble blue dye, which can effectively prevent blue dye migrationand prevent the phenomenon of system bluing caused by blue dye migration and surface enrichment during later use of the nano carbon black through a coupling process. The storage stability of the nanocarbon black is improved, agglomeration is effectively prevented, and the dispersing performance of the nano carbon black is enhanced.

Description

technical field [0001] The invention relates to the technical field of modification of nano-carbon black, more specifically, the invention relates to a water-soluble dye-coupled nano-carbon black and a preparation method thereof. Background technique [0002] Nano-carbon black has excellent colorability, weather resistance and chemical stability, and is rich in sources and low in price. It is one of the important colorants. The color effect presented in the ink system is dull and dull, and most of them show a red phase. These defects lead to poor stability of nano-carbon black ink. Although it has strong hiding power, the surface color effect is poor. [0003] In the practical application of nano-carbon black, blue dye is generally added to the ink system at the same time to improve the hiding power of the ink and adjust the hue, and the black ink with a bluish phase will appear darker. However, there is such a problem in such an operation: since the blue dye is soluble in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/56C09C3/06C09C3/08C09C3/10C09D11/037C09D11/324C09D11/328B82Y30/00B82Y40/00
CPCC09C1/56C09C1/565C09C3/006C09C3/06C09C3/08C09C3/10B82Y30/00B82Y40/00C09D11/037C09D11/324C09D11/328
Inventor 邵路王宏陈忠斌聂绪建
Owner 青岛黑猫新材料研究院有限公司
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