To make paper you must take plant matter, completely separate the fibers, and recombine them, otherwise you haven't made paper. Pressing or rolling bark or tree leaves alone does not result in paper.
所謂紙，必須是將造紙原料的纖維全部打散，重新編排後，才能叫做紙，因此壓乾輾平的樹葉或樹皮都不能叫做紙。