Predicting the behaviour of paper and board surfaces during gluing, printing and coating processes

摘要

1. BASICS ABOUT SPECIFICATIONS OF PAPER AND BOARD. Paper and board is generally further converted, i.e. glued, printed or coated, in order to assure the required final quality of the finished product. For an optimal runability during finishing or converting processes, certain specifications between producer and customer are agreed upon. Usually, these specifications are based on standard measurement methods like Cobb test, Hercules Sizing Test HST, Bendtsen/Gurley porosimeter, and Smoothness Beck. Although the agreed specifications of the produced paper and board are often met, frequently still converting problems occur and the reason is unclear.