Photosensitized oxidation delible ink composite

Abstract

The invention discloses a photosensitized oxidation delible ink composite. The composite mainly comprises the following components by weight percent: 3-6% of pigment, 40% of ethanol, 50% of water, 0.1% of CMC, 0.05% of APG, 0.05% of OP-10, 2-3% of glycerin, 0.1-1% of photosensitizer, 0.01% of preservative, 0.1-5% of fading resistant agent and a small amount of essence. The product of the invention is suitable for the ink used in whiteboard teachings and the writing practices of children. The photosensitized oxidation delible ink composite has the following characteristics: 1) the plant pigment is used as the main raw material for color development and is environmentally friendly and nontoxic, the dosage of the solid substance is low so that the dust pollution is hardly caused; 2) the ink can fade to colourless through photocatalytic oxidation so that children can write again without erasing, the ink has three colors, namely blue, purple and red; 3) the ink can fade in 1 minute, 5 minutes, 10 minutes, 30 minutes and one hour according to needs; and 4) the ink can be erased with water and fade to be a colorless substance.

Description

Technical field [0001] The invention relates to a photosensitive oxidation fading ink composition, especially suitable for whiteboard teaching and children's writing practice ink. Background technique [0002] With the development of multimedia teaching, as a supplement to multimedia teaching, whiteboard markers have become a common writing tool in teaching instead of chalk. With the popularization of the application of whiteboard pens, the performance of whiteboard pen inks is also constantly improving and perfecting. But because whiteboard pen ink is black alcohol-soluble ink, its composition mostly is that organic amine compound sticks to skin and is difficult for washing off again, has dust and can pollute environment and the health of teachers and students equally when wiping off. Therefore, it is an important research direction to study a new type of whiteboard pen ink that does not harm the skin, is easy to wipe off and is environmentally friendly. Contents of the ...

AI Technical Summary

Problems solved by technology

However, because the whiteboard pen ink is black alcohol-soluble ink, its components are mostly organic amine compounds, which are harmful to the skin and not easy to wash off. When wiped off, there is also dust that will pollute the environment and the health of teachers and students.

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