Statistical models for on-line monitoring of cardboard quality properties

A statistical study of data containing observations of process and quality variables from the SCA paper mill in Munksund, Sweden, is presented. The emphasis in this analysis has been on modelling the laboratory collected paper quality variables by means of the data available on-line, during production. The primary tool for prediction, or estimation at non observed time instants, of variables was partial least squares (PLS). In this analysis,...