Real time regulation of yankee dryer coating based on predicted natural coating transfer

An adhesive coating control system for Yankee dryers, the adhesive coating control system comprising:

• an adhesive coating application unit configured to apply an adhesive coating to a surface of the Yankee dryer, the adhesive coating comprising an adhesive aid and a release aid;
• one or more online sensors configured to continuously measure a plurality of characteristics corresponding to a stock comprising one or more fiber sources from which a fibrous sheet is generated and transferred to engage the surface of the Yankee dryer, said one or more online sensors comprising a turbidity sensor, a conductivity sensor and a pH sensor;
• said one or more online sensors configured to continuously sense actual machine control values comprising a stock flow rate and a machine speed;
• and
• a controller configured to
• generate a value for total suspended solids associated with the stock flow based on predetermined correlations with at least a measured turbidity value;
• generate a value for total dissolved solids associated with the stock flow based on predetermined correlations with at least a measured conductivity value;
• predict a natural coating potential to be applied from the sheet to the surface of the Yankee dryer, substantially in real time, based at least in part on the measured characteristics and the sensed actual machine control values,
• wherein the natural coating potential to be applied from the one or more fiber sources to the surface of the Yankee dryer, substantially in real time, is based at least in part on the generated values for total suspended solids and total dissolved solids;
• and
• generate an output signal corresponding at least in part to the predicted natural coating potential.