摘要 |
<p>1. Method for uniting pre-printed sheets into a block, by pressing the head of the pile of sheets between the plates of a heating press, characterised in that : - the support used is a coated paper with a microporosity sufficient to retain, at the surface, the binding agents of the ink used, - a fluid ink with natural polymerisation in air is used for the printing, and - a pressure of 10 X 10**5 to 250 X 10**5 (100 to 250 daN/cm**2 ) is applied between the plates and to the region reserved for binding.</p> |