Baumfolder Wetscore - Manual (Page 10)

TP10320A PAGE 10
The flow of fluid may also be adjusted by the control
valves to apply a minimum of solution to the stock.
If you do not succeed in reducing the offset by any of
the above means, we recommend that you do not use the
WetScore, proceed with conventional mechanical scoring of
the sheet.
4.0 WetScore WITH COATED STOCK
The ability of the alcohol/water solution to absorb into
the sheet decreases with an increase in density of the sheet
coating. Hence the effectiveness of the WetScore decreases
as the sheet coating increases. The WetScore system is
designed primarily for uncoated work. We have found that
when used on coated sheets, the WetScore may prove
helpful in reducing the “cracking” that commonly occurs
along the folded edge of the signatures. Careful attention to
the flow rate of the needles when running coated sheets is
advised.
5.0 IMPORTANCE OF HAVING A
SQUARE SIDE-GUIDE
One of the primary advantages of using the WetScore is
it’s capable of giving you absolutely straight scores that are
applied to the sheet prior to the sheet entering the fold
rollers. For this reason it is absoltely essential that the
register side-guide to be square to the fold rollers.
6.0 WetScore ON VERY LIGHT SHEETS
For very light sheets, we recommend that the flow rate
of the needles be adjusted to a minimum. If the score
obtained is still not fine enough, we suggest using a smaller
diameter needle.