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

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Paper Testing Technology Paper and board are usually produced for being processed further (coating, printing, production of corrugated board, folded boxes) respectively used by the end customer. Each produced paper/board is finished and/or converted further in one or the other way to assure the required final quality. This is done, for instance, in the coating machine, the printing machine or during production of corrugated board/packaging material. A certain specification of the paper/board is required to achieve an optimum run-ability during finishing or converting processes and by that an optimal result. Usually, these specifications are based on standard measurement methods (like Cobb test, Bendtsen porosimeter, Gurley porosimeter, Smoothness Beck). Usually all these standard specifications are complied with. However, often processing problems occur, but nobody knows the reasons. A frequently occurring problem is that standard measurement devices do not characterize the substantial converting relevant paper parameters. For solving this problem one should know what to measure for being able to predict processing problems reliably. For that, the process has to be analyzed and understood. What happens during main converting processes? is a developer and producer of Paper Testing Technology represented worldwide by our sales-network. 2
1. Glueing process Figure 1: Schematic representation of the bonding process/application of adhesive onto paper/board surfaces. is a developer and producer of Paper Testing Technology represented worldwide by our sales-network. Paper Testing Technology Phase I: Pressure impulse controlled glue penetration into the paper/board surface affected by the surface pore structure and liquid rheology Phase II: Dewatering of the applied glue film, controlled by the surface sizing/hydrophoby ⇒ increasing of viscosity Phase III: Drying/fixing of the glue layer by further penetration/evaporation/hardening reaction Coating and printing processes are similar to the glueing process and have the same or similar demands: 3
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PDA-Presentation (Glueability+Printability+Coating+Base+Paper)

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