Predicting the behaviour of paper and board surfaces

28 September 2015

during gluing, printing and coating processes

Publication in "Coating International" - Issue 06-2015 on pages 23-28

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 product paper and board are often met, frequently still converting problems occur and the reason is unclear.

2. Problems in converting processes and reasons for them

It is therefore necessary to identify and subsequently to measure the paper parameters that are relevant for the converting process. Thereby, it is very helpful to understand the converting process of paper and board in detail. Main problems are the gluability, printability and coatability of paper and board.

[to continue reading please click to the following link to download the pdf-file with the complete article]

emtec Electronic GmbH

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