| abstract |
The present invention relates to a surface treated article characterized in that an organic or inorganic substance is immobilized on a coating layer composed of a lignin-containing polymer substance which is independent of the structure or material of the article surface and a coating layer. According to the present invention, Regardless of the material, a coating layer containing a lignin-containing woody biomass-derived phenolic compound is formed as a uniform thin film on the surface of the article, and a variety of organic and inorganic materials are introduced onto the coating layer simultaneously or continuously Various functions can be given. In addition, although the surface treatment method according to the present invention has coating strength comparable to that of conventional coating methods using poly-dopamine and various oil and inorganic materials can be introduced onto such a coating layer, By using this easy material, it is excellent in economy and workability. |