PAPERmaking! Vol7 Nr3 2021

3

LINDBERG AND KULACHENKO

FIGURE 1 The failure mode occurring for the studied tray using Board A. In (A) seen from the inside the tray, and in (B) seen from the outside

FIGURE 2

The paperboard blank before forming operation. (A) The full blank with dimensions and (B) close-up of the creases

FIGURE 3

The studied tray after a successful forming operation. In (A) seen slightly from above and in (B) seen from the side

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