Environment-friendly and non-irritant whiteboard marker ink for classrooms

Abstract

The invention discloses environment-friendly and non-irritant whiteboard marker ink for classrooms. The ink is prepared from raw materials as follows: brown ferrotitanium powder, black copper-chromiumpowder, fluorinated graphite, sepiolite powder, bamboo charcoal micropowder, polyvinylpyrrolidone, black cocoa powder, rhizoma curcumae longae, beetroot juice, hydroxypropyl guar gum, an ethanol water solution, 2-acrylamide-2-methylpropanesulfonic acid, 4-vinylpyridine, acrylic acid, sodium dodecyl sulfate, soda water, 3-chloropropyl alkoxy silane, chloroacetic acid, tetramethylethylenediamine and a stabilizer. The ink polymer raw materials form the ink, biological pigment can prevent the harm caused by eating by mistake, and the ink has good film forming property, uniform films and good stability and has the characteristics of that the ink is energy-saving, environmentally friendly, non-toxic, free of irritant odor and easy to write and erase, the production process is simple and low incost, the product has stable performance for a long time and the ink cannot penetrate into whiteboard surfaces to cause pollution after being used for a long time.

Description

technical field [0001] The invention relates to the technical field of ink, in particular to an environmentally friendly and non-irritating classroom whiteboard pen ink. Background technique [0002] Chalk and blackboards have been in use for thousands of years. All blackboards have the disadvantages that the surface of the board is easy to be grayed out, reflective writing is laborious, and it cannot be wiped clean. At the same time, although the black of the blackboard and the white of the chalk are black and white, it is beneficial for students to distinguish, but because of the large contrast, it is somewhat dazzling, which is not conducive to the protection of students' eyes. Moreover, a large amount of dust generated during the teaching process floats in the air for a long time, which seriously pollutes the indoor air and has a serious impact on the health of teachers and students. [0003] In order to improve the pollution of chalk dust, change chalk from dry writin...

AI Technical Summary

Problems solved by technology

However, the nibs of this series of pens are never-drying nibs, which are expensive and are not conducive to popularization and use.

There are several major problems with whiteboard pen ink: non-irritating, wet-wipe stained board, dry-erasable, anti-corrosion, antifreeze, aging resistance, safety of accidental ingestion, etc.

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