Search found 1224 matches

by Frank Burgos
Fri May 03, 2024 10:25 am
Forum: Pressroom
Topic: Repeat length and number of teeth
Replies: 3
Views: 122

Re: Repeat length and number of teeth

HI Dan. What is the gear pitch? I believe that's what you are calling 'teeth in millimeter'
by Frank Burgos
Fri Apr 26, 2024 4:45 pm
Forum: Pressroom
Topic: Deep Die Cuts
Replies: 5
Views: 105

Re: Deep Die Cuts

Keeping the anvil clean was my first thought but you got that.

Something that occurs to me is variation of depth of cut. If depth is varying, I'd investigate die pressure and die-station rigidity. Consistent cut depth requires a robust setup and no movement. Check bushing, bearings, etc.
by Frank Burgos
Wed Apr 24, 2024 10:46 am
Forum: Pressroom
Topic: Repeat length and number of teeth
Replies: 3
Views: 122

Re: Repeat length and number of teeth

If the 'teeth in millimeters' is the 'gear pitch', the repeat length is simply number of teeth * teeth in millimeters.

To calculate the 'deformation', which we call 'distortion', let me know what gear pitch and number of teeth and I'll calculate the distortion here.
by Frank Burgos
Wed Apr 24, 2024 9:52 am
Forum: Pressroom
Topic: Odd setup
Replies: 11
Views: 232

Re: Odd setup

I forgot, too! Until I remembered :)
by Frank Burgos
Tue Apr 23, 2024 9:30 am
Forum: Pressroom
Topic: Odd setup
Replies: 11
Views: 232

Re: Odd setup

One thing I do with those presses, when I think I've gotten the adjustments all messed up, is I take a mounted cylinder and, with the press stopped, the anilox not rotating, and the station in print position, I place the mounted cylinder where it goes but do not put in the shaft, yet. Then, I make t...
by Frank Burgos
Fri Apr 19, 2024 10:11 am
Forum: Pressroom
Topic: Odd setup
Replies: 11
Views: 232

Re: Odd setup

It sounds right, to me. I have scratched my head to develop a technique that I could also teach, but I haven't. At the end of the day, I tell folks that "this is how this works and it's up to you to develop a technique that ensures minimum anilox-to-plate and plate-to-substrate. That's the goal...
by Frank Burgos
Fri Apr 19, 2024 9:06 am
Forum: Pressroom
Topic: Odd setup
Replies: 11
Views: 232

Re: Odd setup

You have described a typical setup of a press like a Mark Andy 2200, and a few others. I absolutely hate that configuration. I started in wide web, where the arrangement was more linear, and you could adjust plate-to-substrate and anilox-to-plate independently. When I first saw one of these narrow w...
by Frank Burgos
Wed Apr 03, 2024 4:18 pm
Forum: Pressroom
Topic: Anilox BCM
Replies: 1
Views: 121

Re: Anilox BCM

After considerable research and contemplation, I specified the initial set of anilox rollers for a client a few years ago, for printing with Kodak plates, 175-line. We went with 1200-lpi, 1.8 BCM, Harper rollers. When the first image of the test plates, the cyan, came through the press and arrived a...
by Frank Burgos
Tue Mar 05, 2024 1:01 pm
Forum: Pressroom
Topic: C.I. Drum Temperature
Replies: 10
Views: 8413

Re: C.I. Drum Temperature

Something like anti-freeze is probably good, but don't quote me. I've seen a couple of drums that did not have anti-corrosion for years and there was rust in the drum plumbing.
by Frank Burgos
Tue Mar 05, 2024 9:38 am
Forum: Pressroom
Topic: Seeking Guidance on Eyemarks and Water-Based Flexo Inks
Replies: 3
Views: 190

Re: Seeking Guidance on Eyemarks and Water-Based Flexo Inks

I have doubts that water-based ink is causing your problem. Can you describe the problem in a little more detail? Are you having color-to-color registration issues? Are you printing an eye-mark on top of another eye-mark for registration?
by Frank Burgos
Sat Mar 02, 2024 11:07 am
Forum: Pressroom
Topic: Ph level for water based inks on paper
Replies: 2
Views: 184

Re: Ph level for water based inks on paper

I do not think it's too high, but I would try to keep the range narrower. That may mean more frequent, but smaller, adjustment's I keep for 9.1 to 9.8, with the target being 9.5. I learned this through speaking with multiple ink manufacturing reps over the years. I have heard some reps say, "ou...
by Frank Burgos
Fri Feb 23, 2024 10:14 am
Forum: Pressroom
Topic: New/used press set up
Replies: 1
Views: 160

Re: New/used press set up

If you can do it, I'd vent outside. You'll do well to hire a specialist with airflow and that sort of thing, because you may end up creating a vacuum that sucks air and dirt in from the outside, so venting from outside-in may be involved. This is a big decision and investment. Don't cheap out. You'l...
by Frank Burgos
Fri Feb 23, 2024 9:19 am
Forum: Pressroom
Topic: Waterbased Inks on PE film
Replies: 6
Views: 342

Re: Waterbased Inks on PE film

I don't have advice on ink for stretch films, other than keep looking and asking. As for static control, yes, there are things you can do and should do. There are deionizing bars that can be strategically placed on you equipment and the converting equipment that follows the press. This link is the f...
by Frank Burgos
Wed Feb 21, 2024 8:51 am
Forum: Pressroom
Topic: Eyemark trouble after running on press.
Replies: 2
Views: 171

Re: Eyemark trouble after running on press.

Please take a sample and measure the repeat between images for one more repeat that the number around. For example, if the job is four around, measure five image repeats. All should be equal. If not equal, there should only be one that is too short or too long. If that's the case, your distortion + ...
by Frank Burgos
Thu Feb 15, 2024 8:11 pm
Forum: Pressroom
Topic: Label Shop Live
Replies: 11
Views: 392

Re: Label Shop Live

I agree! I never noticed that both things share an acronym. Wow. I'm sincerely shocked. I love etymology and all kinds of word things. I like the idea and it will be incorporated and I'll and share. Many, many thanks. For those who understandably haven't heard of "BCD", it can also mean th...