Do you run 16pp signature work on your folding machine? Here are some helpful tips that will ensure improved production quality.
A standard 16pp signature running 1 fold in the parallel section, plus 1 fold in each of the 2 right angle sections.
Tips and shortcuts
Do not use a score on the spine in the 8pp section. As long as the head is perforated in the parallel section, the last fold in the 16pp section will not need to be scored in the 8pp section. Whatever the stock type you are processing.
|If you need to trim the signature for the stitching machine, do it on the folder, not on the guillotine (please ask about Tech-ni-Fold’s Multi-Tool Cutting solution for your folding machine). Leaving the original guide and gripper edges on will dramatically improve registration quality, crossovers and folding on bleeds (as long as the operator follows the guide and gripper edge!).|
If you know the stock you are processing is inconsistent in squareness and trim, and generally just a bad sheet, and you just have to buy the cheapest type of stock there is, take the time to trim it on the guillotine before you print it. This gives both the press operator and the finishing department a fighting chance to produce a job that registers in print, folding and stitching.
Focus troubleshooting efforts in the main parallel section. If the sheets coming off this section are folded square and in register, and if the perforation is consistently straight, you will rarely have to re-set anything in the 8pp or 16pp sections.
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