Re: [OT] Dot shape prevalence
Re: [OT] Dot shape prevalence
- Subject: Re: [OT] Dot shape prevalence
- From: "RS" <email@hidden>
- Date: Mon, 10 Oct 2005 09:57:16 -0700 (PDT)
- Importance: Normal
Roger,
RT Y45 K fine screen system was recommended for both flexography and
screen printing on page 37 of Heidelberg's "Introduction to Screening"
document. You can download the PDF from the following link:
http://www.heidelberg.com/wwwbinaries/bin/files/dotcom/en/products/prinect/screening_technology_eng.pdf
I look forward to hearing about your test results. Do you also plan to run
tests with an elliptical dot?
email@hidden
------
Roger Breton wrote:
> Heidelberg offers the RT Y45 K fine screen system in which yellow and
> black are both printed at a 45 degree angle, but the screen frequencies
> are significantly different. The requested line screen is multiplied by
> 0.943 for yellow and 1.414 for black. For a 150 line screen job, for
> example, the yellow would be come out with a 141.5 line screen and the
> black with a 212.1 line screen. This system is recommended for flexography
> and screen printing. by removing yellow from the 0 degree angle, this
> screen system reduces moire between screen and slik screen or ink roller.
Do they say they recommend it for flexo? In don't recall reading this in HDM
book. At any rate, I have a test coming up with RT Y45 K-fine with
SmoothElliptical. Will let you know how it went. Also testing IS Y-fine in
conjunction with Eucledian dot shape.
------
Roger Breton wrote:
> (the guides notes
> this system as "well suited for reproducing skin tones").
Keeping my fingers crossed that this screen set will indeed deliver smoth
skin tones. See, they don't refer to flexo printing here?
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