There are natural, usage differences between impregnated paper and common paper. But they also have something in common, that is because they are all paper. However, the common paper is thin and can be used for painting and writing. Impregnated paper is much thicker and can be printed with different designs on the surface as a decorative material.
There is no same usage for 2 kinds of paper, they have their own field. The impregnated paper has its own special decorative effect in decorative trade. The common paper has a long history and its own value. There is no much comparability between their two because of the different fields.
It is important for the different designs on the surface of the impregnated paper as an advantage for the decorative material, and it is useless for the common paper.