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Structural color ink and preparation method thereof

A technology of structural color and ink, applied in ink, household utensils, applications, etc., can solve problems such as lack of color and vividness of text patterns, harm to human body and environment, and large particles

Active Publication Date: 2017-06-20
苏大新材料发展(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The color of the text pattern printed by this ink lacks good color and vividness
At the same time, due to the relatively large particles of the pigment ink color material, printing on the surface of the paper reduces its friction resistance
Not only that, in order to ensure relatively stable physical and chemical properties, some dye inks and pigment inks use organic solvents in the preparation process, which are highly toxic and can easily cause harm to the human body and the environment during use and after they are discarded.

Method used

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  • Structural color ink and preparation method thereof
  • Structural color ink and preparation method thereof
  • Structural color ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Disperse silicon dioxide nano-microspheres with a particle diameter of 120 nm in water to prepare a silicon dioxide aqueous dispersion with a mass fraction of 4%.

[0027] Prepare an aqueous gelatin solution with a mass fraction of 4%, and then mix 2ml of the above-mentioned silica aqueous dispersion with 3ml of the above-mentioned gelatin aqueous solution to obtain a structural color ink. At this time, the mass ratio of silica microspheres to gelatin is 2:3. Then use a pipette to absorb a small amount of structural color ink, draw a pattern on the substrate, and place it in an oven to dry.

Embodiment 2

[0029] Disperse silicon dioxide nano-microspheres with a particle diameter of 150 nm in water to prepare a silicon dioxide aqueous dispersion with a mass fraction of 4%.

[0030] Prepare an aqueous gelatin solution with a mass fraction of 4%, and then mix 2ml of the above-mentioned silica aqueous dispersion with 3ml of the above-mentioned gelatin aqueous solution to obtain a structural color ink. At this time, the mass ratio of silica microspheres to gelatin is 2:3. Then use a pipette to absorb a small amount of structural color ink, draw a pattern on the substrate, and place it in an oven to dry.

Embodiment 3

[0032] Disperse silicon dioxide nano-microspheres with a particle diameter of 180 nm in water to prepare a silicon dioxide aqueous dispersion with a mass fraction of 4%.

[0033] Prepare an aqueous gelatin solution with a mass fraction of 4%, and then mix 2ml of the above-mentioned silica aqueous dispersion with 3ml of the above-mentioned gelatin aqueous solution to obtain a structural color ink. At this time, the mass ratio of silica microspheres to gelatin is 2:3. Then use a pipette to absorb a small amount of structural color ink, draw a pattern on the substrate, and place it in an oven to dry.

[0034] figure 1 Be the optical photograph of the ink prepared in embodiment 1-3 after drying, figure 1 a corresponds to embodiment 1, figure 1 b corresponds to embodiment 2, figure 1 c corresponds to Example 3. From left to right, the colors are blue-violet, blue and light blue, indicating that changing the particle size of silica nanospheres can form a microstructure that can ...

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Abstract

The invention relates to structural color ink. The structural color ink is prepared from the following components in percentage by mass: 0-10% of silicon dioxide nano microspheres, 0-10% of natural biological macromolecules and the balance of water, wherein the mass ratio of the silicon dioxide nano microspheres to the natural biological macromolecules is (0.25 to 1) to 1; the size of the silicon dioxide nano microspheres is 100-200nm. The invention also relates to a preparation method of the structural color ink. The method comprises the following steps: providing an aqueous dispersion solution of silicon dioxide nano microspheres; dissolving the natural biological macromolecules in water to obtain a natural biological macromolecule aqueous solution; and mixing the aqueous dispersion solution of silicon dioxide nano microsphere with the natural biological macromolecule aqueous solution to obtain the structural color ink. The prepared ink presents certain color after the ink is dried; the structural color ink prepared by the method is completely non-toxic and harmless; the preparation method is simple, is low in cost and is an ideal method for developing novel ink.

Description

technical field [0001] The invention relates to the technical field of ink preparation, in particular to a structural color ink and a preparation method thereof. Background technique [0002] Ink is a liquid containing pigments or dyes, usually used for writing or drawing. As a tool for recording information, ink has a long history and has played a vital role in our daily life and work. [0003] At present, the commonly used color inks can be roughly divided into two types: the first is dye ink, which is a composite solution of molecular dyes, which is bright in color and will not block the nozzle. However, due to the inherent properties of the dye molecules, this ink is not waterproof very well, and it decomposes quickly under ultraviolet light, and its durability is not good, and it is easy to fade. The second is pigment ink, which grinds solid pigment into fine particles, forms a suspension solution in a special solvent, and develops color by attaching the color materia...

Claims

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Application Information

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IPC IPC(8): C09D11/16
CPCC09D11/16
Inventor 张克勤李青松曾琦周宁董伊航
Owner 苏大新材料发展(苏州)有限公司
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