Recent

Author Topic: Muller Martini Saddle stitcher - problems saddle stitching digital work  (Read 2921 times)

0 Members and 1 Guest are viewing this topic.

Offline impodave

  • Full Member
  • ***
  • Posts: 203
  • Gender: Male
  • Pushing hard toward retirement !!!
Hello.

1) I am having repeated issues with staples punching through the center spine on digitally printed booklets.
Doesn't matter how much or how little clinch I apply, nor what the length of the staples are.

2) Sometimes the double sheet caliper wheel will split the center spine on the inside also.

These problems seem their worst on coated papers.  I think the drying action of the fuser on the copier, digital press, or whatever you want to call it, is making the paper brittle and it becomes that much weaker with folding.

Has anyone had any success getting around these issues ??

Thanx !!
<<<<<< Here's my Grandkids once again -- they're growing up way too fast !!    Fuji XMF V6.8.2 Complete, Mac OS, Adobe Creative Suite, Epson 7900/EFI XF V4.0, Fuji Dart 4300E, Komori L528 5 color, Komori L429P 4 color,  Heidelberg PM46 2 color, Ricoh, Kyocera, Xante Impressia and a shop full of finishing stuff ...

Offline Ear

  • Fiya wata
  • Supreme Ninja
  • ***
  • Posts: 16314
  • Gender: Male
  • Nice Marmot, Man
Re: Muller Martini Saddle stitcher - problems saddle stitching digital work
« Reply #1 on: December 03, 2015, 05:27:13 PM »
Changing the grain direction might help.
"... profile says he's a seven-foot tall ex-basketball pro, Hindu guru drag queen alien." ~Jet Black

Offline born2print

  • Post count: purtygood
  • Supreme Ninja
  • ***
  • Posts: 12560
  • Gender: Male
Re: Muller Martini Saddle stitcher - problems saddle stitching digital work
« Reply #2 on: December 03, 2015, 05:33:57 PM »
Yikes! You may be on the right track with the paper being tortured.
I assume you run similar weights, etc.. stock conventional without these issues
The blues is from a time when men were not supposed to cry. So they let the guitars cry for them.

Offline Ear

  • Fiya wata
  • Supreme Ninja
  • ***
  • Posts: 16314
  • Gender: Male
  • Nice Marmot, Man
Re: Muller Martini Saddle stitcher - problems saddle stitching digital work
« Reply #3 on: December 03, 2015, 06:18:24 PM »
I will say, most digital stuff I see still cracks more than offset stuff, because the toner is thicker and more brittle, after being cooked.

My Heatset web is the only other press I see cracking, and that is only if they are running slow.
"... profile says he's a seven-foot tall ex-basketball pro, Hindu guru drag queen alien." ~Jet Black

Offline mwc

  • Telepathy expert in a mindless environment.
  • Sr. Member
  • ****
  • Posts: 332
  • Gender: Male
  • Mr. Cumberdale
    • Growing Vegetables in Cold Climates
Re: Muller Martini Saddle stitcher - problems saddle stitching digital work
« Reply #4 on: December 04, 2015, 02:30:51 PM »
dependant on the paper type and weight, we have to score a lot of our digital covers.

Offline delooch

  • Ninja Member
  • *
  • Posts: 4870
  • Gender: Male
Re: Muller Martini Saddle stitcher - problems saddle stitching digital work
« Reply #5 on: December 04, 2015, 03:39:50 PM »
 we had shitloads of saddles-stitched booklets come off the finisher off the cannon, it was just easier to pre-score the stock and it would always come out fine. just do it be default now.

Offline Slappy

  • Ninja Member
  • *
  • Posts: 4324
  • Gender: Male
  • Come On. Fhqwhgads.
Re: Muller Martini Saddle stitcher - problems saddle stitching digital work
« Reply #6 on: December 06, 2015, 09:59:37 PM »
Ditto, we even score heavier text weight jobs coming off the digital machines. Our in-house booklet maker is a Duplo, not sure where that falls on the spectrum of the machines, for versatility.
A little diddie ‘bout black 'n cyan...two reflective colors doin’ the best they can.

Offline Ear

  • Fiya wata
  • Supreme Ninja
  • ***
  • Posts: 16314
  • Gender: Male
  • Nice Marmot, Man
Re: Muller Martini Saddle stitcher - problems saddle stitching digital work
« Reply #7 on: December 07, 2015, 11:46:37 AM »
Dude, you're gonna score. :hello:
"... profile says he's a seven-foot tall ex-basketball pro, Hindu guru drag queen alien." ~Jet Black