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Digital BW, The Print

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Re: [Digital BW] R1800 100% Eboni carbon -- Comparison to C86 EZ

2007-05-28 by Ernst Dinkla

Paul Roark wrote:
> I added a scan of a C86 MIS EZ test strip to the comparison between the
> R1800 and 2400.  
> 
>  
> 
> See http://www.paulroark.com/BW-Info/R1800.pdf at p. 2.

Paul,

With the Multihead BO 1.5 picoliter printing there should be 
more influence of dotgain by changing paper coating batches 
and air humidity. First of all its ratio between dot surface 
and total dot circumference shows changes faster and the 
black ink has little transparency so its dotgain will have a 
high density while the spots from where there ink migrated 
will not become more transparent either. Quite a difference 
to large dots with diluted inks where the lower dotgain and 
more ink transparency dampens dotgain influences (but 
affects detail contrast). I thought way back when we 
discussed this in theory that it could be a problem. I 
wonder what it is in practice.

At the same time the small black dots give the graphic 
qualities Clayton liked: paper color less filtered overall, 
ink color hardly visible, high detail contrast.

An interesting advantage could be the very low use of ink 
and by that of inkmedia so reducing outgassing to a minimum 
when framed.


Met vriendelijke groeten,  Ernst


|  Dinkla Grafische Techniek  |
|     www.pigment-print.com    |
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