What is the meaning of impregnated paper in panel furniture?

The impregnated paper on panel furniture is generally melamine impregnated paper.

Melamine-urea-formaldehyde impregnated coated paper, also known as "melamine paper", is a kind of adhesive paper with a certain resin content and volatile content. It is a plain base paper or printing decorative paper impregnated with amino resin (melamine formaldehyde resin and urea formaldehyde resin) and dried to a certain extent, which can be bonded to each other or to the wood-based panel substrate after hot pressing.