ECF paper (acronym for Elemental Chlorine Free, i.e. "chlorine-free") is a type of ecological paper that is paper, because for its bleaching, products free of organic elemental chlorine.
ECF paper (acronym for Elemental Chlorine Free, i.e. "chlorine-free") is a type of ecological paper that is paper, because for its bleaching, products free of organic elemental chlorine.