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Preparation method of nanometer thermosensitive dye powder

A technology for heat-sensitive dyes and powders, applied in the field of medical dyes, can solve problems such as difference in composition ratio, inability to guarantee the same composition of particles, and limited use range.

Pending Publication Date: 2017-02-01
TIANJIN REAL IMAGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Vapor deposition method is not suitable for many materials due to the uneven composition of the formed nanopowder
Due to the high energy consumption and easy to cause material deterioration, the grinding method also has a certain range of use
The biggest problem with the above two methods is that it cannot guarantee that the composition of each particle is the same, especially when the composition of the particles is a mixture of two or more, there are obvious differences in the composition ratio between the particles

Method used

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Embodiment Construction

[0015] The invention provides a method for preparing nanometer thermosensitive dye powder, which can obtain a fine powder of a solid mixture, wherein the solid mixture is nanometer-sized tiny solid particles. Because these tiny particles are formed directly from the liquid mixture under the change of temperature, the ingredients in these small particles are the same, and the ratio between the ingredients is also highly consistent. And because the size of these small particles is very small, and the particle size is below 1 micron, the uniformity of the mixture ratio in the very small particles is realized, thereby solving the uniformity of the microscopic reaction with a macroscopic method.

[0016] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in specific implementation manners.

[0017] A kind of preparation method of nano thermosensitive dye powder described in the present embod...

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Abstract

The invention provides a preparation method of nanometer thermosensitive dye powder. The method comprises the following steps that 1, color formers A, B and C are dissolved into an organic solvent according to a certain proportion to obtain a solution, and the temperature is controlled to 80-90 DEG C; 2, granulation is performed; 3, according to the steps 1 and 2, a color developing agent D is prepared into small mixture solid granules; 4, the small mixture solid granules of the color formers A, B and C and the mixed solid granules of the color developing agent D are uniformly stirred to be prepared into a coating solution, and due to the fact that the solid granules are not in sufficient contact, no chemical reaction is performed; 5, coating is performed; 6, low-temperature hot-air drying is adopted for the coating layer; 7, a thermal printer is adopted for performing printing, the mixture granules of the color formers A, B and C and the color developing agent D in the coating are converted into liquid after being heated, the components make sufficient contact, and the dye with colors is formed after a metachromatism is performed. The method has the advantages that granulation is uniform and the colors are adjustable.

Description

technical field [0001] The invention relates to the technical field of medical dyes, in particular to a method for preparing nanometer thermosensitive dye powder. Background technique [0002] Among solid nanomaterials, there are single-component and multi-component nanomaterials. Ordinary solid nanomaterials are usually prepared by vapor deposition or grinding. Vapor deposition method is not suitable for many kinds of materials due to the inhomogeneous composition of the nano-powder formed. Due to high energy consumption and easy deterioration of materials, the grinding method also has a certain range of application. The biggest problem of the above two methods is that it cannot guarantee that the composition of each particle is the same, especially when the composition of the particles is a mixture of two or more, there is a significant difference in the composition ratio between the particles. [0003] For fine chemical industry, the control of composition ratio is ver...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B67/42
CPCC09B67/0033C09B67/0095
Inventor 葛木申刘烨
Owner TIANJIN REAL IMAGE
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