| 摘要 |
<p>: Multi-ply paperboard is manufactured by forming consecutive paper plies on individual moving fabrics. The plies are alternately mated to one side and then the next of the partly formed paperboard. A machine for manufacturing the paperboard in this way a fabric belt which passes over a set of four rolls with a first, low-vacuum box to dewater the ply before it is laminated to the other plies and a second, high vacuum box to dewater the mated plies and improve the bonding between the plies.</p> |
