RIGO PERFECT BINDER 420 HM, Руководство пользователя

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11. Paper and types:
The paper has its own characteristics during production, like weight, glossy or matt,
cardboard type or not, grain direction etc. At your company the paper goes through
further processes, which might change the characteristics of the paper, like
warnishing, or laminating not mentioning the type of your printengine.
If you follow the next instructions, you can be sure that the book that you produce
will be a high quality demanding product.
1. Grain direction: It is very esential to look the grain direction not only at the cover
page, but as well as on the inside sheets. The grain direction should be paralell with
the spine. If the inside sheets grain direction is not correct, than the sheets will not
fold/bend easily and it might cause spine brake. When the spine brakes, the paper
will fall out. Moreover, due to the wrong grain direction the paper sheets will be
curvy.
2. When usiing folded sections, the folds must be perfectly done.
3. Keep the paper falt. When there are too much air inside the sheets or the papers
are curvy, the book block won’t look as a perfect bound book.
Also keep the cover page flat as possible, to be sure that the bounded books will be
perfect. Incase the covers are not perfectly straight and during the binding process
the book block can touch the cover, and it cause that in some areas we have too
much glue and in some areas we have no glue.
4. Make sure that the print is aleady dried and it won’t leave any mark on the clamp
station or on the binding station, because it affects the quality of the bounded book.