Kodak NX & Screening!

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Kodak NX & Screening!

Postby Starbender » Fri Jun 19, 2015 6:46 am

Hi All,

We are trying to optimize our NX system for a while. Our whole workflow build around Esko Flexrip. We had succesful results with cdi's with pixel+ . With CDI&pixel+ print results are more or less perfect. Especially highlights and fade to zero areas. When I check NX print results, highlight dot gain is more dominant than esko hd plates. I can clearly see and measure 0-10 percent dots and steps with pixel+ HD plates. However with NX prints, there is less visual steps between 0-10 percent, not only our print samples, other companies test results show similar results.

My question is; Anyone tried esko hd screening sets with NX plates? Smooth perfect highlights or traditional highlights? Or anyone using Esko screen manager to create screens for NX? With transition points?

Or what kind of screening are you using dear NX users?

Regards,

Sb.
Starbender
 
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Re: Kodak NX & Screening!

Postby pit15216 » Tue Jul 07, 2015 12:11 am

Starbender

My name is John Anderson, and I work for Kodak specifically with the Flexcel NX system. We have a good proportion of our system owners using for at least some of their workflow the same solution as you have, with no issue. There are a few pieces when using the workflow to check, especially to ensure you have the output for the 1-bitt Tiff files set to 2400 dpi with no cut off or bump curve applied.

Please contact me directly at john.anderson3@kodak.com and I will put you in contact with a Kodak workflow specialist in your region to ensure you get the maximum from your workflow and Flexcel NX together. I can also share the features of the new update released in May called NX Advantage, with specialist Advanced DigiCap NX features for whites and spot color printing using heavier anilox rolls, as well as advanced edge definition for enhanced text and open reverses, and Hyperflex NX for improved highlights and shadows.

With regards

Dr. John
pit15216
 
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Re: Kodak NX & Screening!

Postby Starbender » Wed Jul 08, 2015 10:39 am

Thanks for the info John. I can create 2400dpi 1-bit tiff files without a problem. Again, no cut or bump. My real concern is, when we use traditional circular or euclidian dotshapes, fade to zero part cuts like a knife. Without bump, without cutoff. I created screen with SM. Calculating gray levels while maintaining screen accuracy is a bit hard. But I think we are getting close.

I didn't heard NX advantage or advanced edge definition. Is this options or updates part of the kodak rip (prinergy?) or nx imager related?

Regards,

Sb.
Starbender
 
Posts: 22
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Re: Kodak NX & Screening!

Postby pit15216 » Wed Jul 08, 2015 4:58 pm

Starbender, what application are you printing, what LPI value? If it is wide web flexible packaging we normally cut off at 0.8%, removing the 0.4%, narrow web we go all the way to holding the 0.4%, but a single color fingerprint would help show that.

The NX Advantage consists of several components, the majority of which are applied through a software upgrade at the imager, and applied just like the standard DigiCap NX:
* We have 5 new Advanced DigiCap NX patterns 01-05 that increase in size to match the anilox volumes from process, to spot colors, white, and coatings. There is a simple 1 plate test for all 6 DigiCap NX patterns at once, to easily identify the applicable one for the ink/anilox combination.
* Advanced edge definition is a new patented technology to improve ink flow while keeping edges and reverses clean and open, automatically included in all of the Advanced DigiCap NX patterns.
* We also have added HyperFlex NX, using a light valve technology to enhance highlights by controlling the floor height to support the finest highlights, and additional controls for extended shadow tonal range.

There is also a hybrid screening update called Maxtone SX, to provide smoother tonal range built specifically for Flexcel NX, from 85 to 250 LPI, and available to Prinergy users.

We will publish a white paper soon on applying these technologies specifically for white inks, you can register at http://www.kodak.com/go/nxadvantage to be sent electronically on publication.

Dr. John
john.anderson3@kodak.com
pit15216
 
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Re: Kodak NX & Screening!

Postby Starbender » Wed Jul 15, 2015 6:43 am

John, we are printing mostly wide web flexible packaging. For years, we cut off at 0.8% at digiflow&pixel+ process. Seems like kodak needs the same cut off more or less.

While using Pixel+, Esko give us countless of options for screening and microcell patterns. At first look, it may confuse people easily. But the logic is very simple.
If I understood correctly, Kodak aware of the situation; one pattern does not fit all. Thus they decided to introduce more digicap patterns.

As for Maxtone; I think it's more or less same as Esko's hybrid hd screenings. I have no problem using Esko screenings with NX. They need a bit of optimizing.

Right now our main problem is dust...and humidity...

Sb.
Starbender
 
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Re: Kodak NX & Screening!

Postby Boki » Fri Aug 07, 2015 6:44 am

hi Starbender
i use same like you nx with esko rip
you need good configure to be good results
flexrip Hd 4000 when you use screens like hd01..etc is not good they not make good that
you need more advanced config to get good from 0-4 %
if you need help pm
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