As mentioned, holocellulose fibers have higher hemicellulose content and well-preserved structure, compared to the Kraft pulp fiber reference. It is therefore of interest to investigate fiber effects on the properties of corresponding high-density paper structures. Figure 1 shows the preparation of holocellulose paper using a water-based two-step hot-pressing procedure. Notethat the resulting paper structures essentially have random-in-the-plane fiber orientation,and have higher density (lower porosity) than conventional paper or fiber-board.