[Design-team] cmyk colour separations

[Luya Tshimbalanga]

That's very useful to know. I will see how I can gather these tutorials in
a wiki. I think I will discuss with the rest of team how to organize them.

Cheers,
Luya
Sent from Samsung Galaxy S5
On Aug 24, 2015 7:10 PM, "Andrew Walton" <andrewfixcomputer at gmail.com>
wrote:

> Just a little extra tip you could include in your wiki page. Will need
> reworking of course.
>
> I was actually an Offset Printer for more than 20 years, computers and
> photography were only hobbies. Probably where my mental issues come from -
> heavy metal poisoning.
>
> There's a big mistake that nearly all graphic designers make, especially
> if they're fresh out of TAFE with a shiny new certificate in Photoshop.
>
> Paper is only paper, if you put too much ink on it it gets soggy and
> changes shape. This is really noticeable in colours such as the dark blue
> for Fedora and in any darker areas of the image.
>
> The problem is that when you do a default separation your software by
> default will use all four colours to make black, even though one of those
> colours is black.
>
> This was way before I started playing with the Gimp, maybe Gimp gets it
> right, I don't know. The old Quark used to do the separations correctly but
> Photoshop is hopeless, what you have to do is lift all the black out of
> your image as a separate layer first, and put it to one side as the
> finished black layer. Then do your cmyk separation, the black layer should
> be blank and the colour layers should be almost empty any where the black
> was.
>
> I was a "short run speciality" printer, someone else did the 50000
> posters, I did the 300 corporate invites. If you are truly after a high
> quality result use cmyk for the photos only and use "spot colours" for the
> rest of the design. It's not uncommon in my trade to get a job that's
> listed as "7 colours, 2 sides, + 2 varnishes and a spot varnish"
>
> The spot varnish is a clever little trick, you give the finished print an
> over all gloss varnish first, then use one of the same printing plates from
> the job, usually the Cyan, and print a matt varnish over the top. This
> trick can be used to attract peoples attention to an area of the design
> without making it too obvious that this is what you want.
>
> Cheers,
>
> Andrew.
> _______________________________________________
> design-team mailing list
> design-team at lists.fedoraproject.org
> https://lists.fedoraproject.org/mailman/listinfo/design-team
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.fedoraproject.org/pipermail/design-team/attachments/20150824/e1b46fe8/attachment.html>