I really don't understand these color separation channels for screen printing

enter image description hereenter image description here Here are all Channels. You can see RGB and I dont understand what they are channels 2-305-process ? enter image description here


You have a CMYK separation with a white base color for dark textiles.

Every channel must be reticulated before printing or reticulated in a rip printer.

The channels you are showing are just grayscaled separeated inks, where we see the amount of ink we must use in every silkscreen.


enter image description hereIt seems to be a separation for silkscreen, like a DCS EPS. In silkscreen, the white is another color, the base, imagine printing on a black t-shirt (the ctrl+7 channel). The other four are the process colors for the illustration. Will be interesting to see a picture with RGB channels hidden, to see the illustration colors.

This image is an old EPS DCS i have for silkscreen with three inks. If you change the color of the channel for the correspondent ink, you will see the illustration. The order of the channels must be like in the printing process, on my case lighter colors on the bottom.

enter image description here

  • I don't understand how they get Ctrl+7, 8, 9... channels? May 3 '18 at 16:32
  • 1
    it seems they duplicate CMYK channels to a RGB file and add ctrl+7 channel with the image border. Is the easy way. On my illustration i separate every part as a different layer and use posterization.
    – user120647
    May 3 '18 at 16:52
  • I understand your file but I don't understand why I have RGB channels and down Ctrl+7, 8, 9... channels (2-305-Process yellow). I am confused a little bit with that :) May 3 '18 at 16:55
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    I guess you can delete RGB channels. May be they keep them because if you delete them, after there are no possibilities for saving as JPG to send the file. They file will become a Multichannel file and EPS DSC is the format to save it, but the file gets bigger.
    – user120647
    May 3 '18 at 16:58
  • Thanks a lot. I think I understand better this :) May 3 '18 at 17:03

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