PDA-Presentation (Glueability+Printability+Coating+Base+Paper)

Paper Testing Technology
Conclusion: the prediction of gluability in this specific example is only possible with
water+IPA mixture as a testing liquid. That means, the converting problem is caused by the
surface pore structure. The parameter t99 gives a perfect correlation to the actual converting
quality. The parameter MAX as a measure for the surface sizing/hydrophoby does not
correlate with the converting properties in this example, it means, the surface sizing does not
generate the problems.
This example shows impressively how the PDA system can help to detect, analyze and
predict run-ability problems and resulting quality issues. By that material, man power, time
and money can be saved, complaints can be avoided and the converting process can be
stabilized.
The return on investment is extremely short for these devices, the customer satisfaction
increases decisively and problems can be avoided before they occur.
All emtec devices, including the wet end devices "Charge Analyzing System CAS",
"Fiber Zeta Potential Analyzer FPA", and "Dynamic Filtration Analyzer DFA", can
contribute to a decisive increase of efficiency of incoming control, process optimization and
stabilization, product optimization, quality control and R&D as well as be used for efficient
trouble shooting. They can be used in the important phases of paper and board production
and processing from pulp, wet end, size press and coater up to the final product, before it is
handed over to the customer for further processing or use.
This overview shows the philosophy of the use of emtec measurement devices in the
paper/board production process:
Figure 12: Optimization of the paper production process using emtec devices
� The target of any production is the end user = “the king”!
� The final product quality will be determined by this customer.
� The theoretical specification/demand (red lines) in each production step is
determined by the demand of the following steps.
� The real parameters (white lines) can be measured by emtec devices.
� By using the testing results the process parameters can be adjusted/optimized (green
lines).
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