Date of Award


Degree Name

Bachelor of Science


Paper Science and Engineering


W. Hildenbrand, W. Brecht and H.-J. Knittweis did work in Germany in the late 1960's concerning the relationship between roll hardness, pressure and plybond degradation of paper board in a gravure printing process. They showed that softer rubber covered rolls caused a decrease in plybond strength. Increased pressure at the nip also caused a similar decrease. This study attempted to quantify these decreases, but was unable to produce acceptable data. Poor samples and inconsistencies in the BRDA plybond test machine are the probable causes of the high variation in the data.