The good quality of underpacking sheets is a basic requirement for perfect printing quality. On the following pages, we would like to make a short presentation into the development history of the underpacking sheet and its function. Because without an underpacking sheet, for the development of which marks-3zet has been largely responsible, a guarantee of quality in waterless offset printing could not be given today.
An even contact pressure of the printing cylinder on the printing surface is, amongst other things, absolutely decisive for an optimal print result with offset technology. This is ensured by underpacking sheets of different thicknesses. marks-3zet underpacking sheets are manufactured according to the ISO standards for calibrated materials. The required tolerances are not only fulfilled in this regard, they are clearly exceeded!
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