Seite 90
Alterations reserved
Stand 05/2008
Operating manual T700/T800.1 - en
Continuation
opening too narrow wider opening
With punch-perforation the opening is larger and the angle wider, therefore the glue can definitely
reach all sheets.
Contrary to the existing perfect binding methods, where the glue reaches the top edge of the sheet
only, the punch-perforation method enables the glue to bind the sheets not only on the edge but
also at the sides, resulting in far stronger perfect binding than has been possible in the past.
Furthermore, the sheets are still attached to each other between the slots by the uncut strips
which guarantees a more secure binding.
uncut strips
punch perforation
When using the new punch-perforation device, it is of the utmost importance that the punched out
pieces are separated and stripped from the folded sheets. A new design of perforating knife ensures
this in conjunction with a specially manufactured stripping unit.
Perforating knife Stripper
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