From the relationships shown in Figure 1, it can be seen that the ripeness curve of bacterial alkalicellulose is the same as that of spruce cellulose. Hence,one can assume that the ripening mechanisms of both celluloses are also the same.Therefore, it can be concluded that the addition of bacterial cellulose to the viscose process of fiber manufacture should not present any difficulties, and the process can be carried out under the same conditions as those employed for spruce cellulose.