Is prepared from the following raw materials in parts by mass:
50 parts of water, 2.5 parts of cellulose derivative O5, 5 parts of superfine silicon powder15, 0.3-0.8 part of defoaming agent, 0.310.0 part of dispersant, 0.310.2 part of leveling agent, 0.2-0.9 part of film-forming agent and 0./kloc-preservative.
Inorganic salt filler is kaolin, talcum powder or calcium carbonate.
The cellulose derivative is methyl cellulose or carboxymethyl cellulose or hydroxyethyl cellulose or hydroxyethyl propyl cellulose.
The above-mentioned water-based environmental protection water-writing cloth surface coating is made of the following raw materials according to the best mass ratio (note that the following measurements have changed, and the materials are different, which can be considered to be exactly the same! ):
50 parts of water, 1.5-2.0 parts of cellulose derivative, 7 13 parts of superfine cinnamon powder, 0.4-0.7 part of defoamer, 0.3-0.8 part of dispersant, 0.3-0.7 part of leveling agent, 0.4-0.7 part of film forming agent, 0.3 part of preservatives O 2 and 8/kloc. 25 portions of water-color ink12.