Digital workshop- Photoshop

During this digital workshop, we went over the basics of layers in preparation for screen printing.

Magic wand -> select other layer and add colour
Hue/Saturation layer mask over black line to change colour
Once secondary colour added, can copy and paste layer, then Select -> colour range and change to black
Two layers now ok to print for positives
(Change normal to multiply to see colour from below come through)


We also had a quick tutorial on bitmap and CMYK printing

For bitmap printing, channels can be used to see difference, once the image is put into Illustrator:
File -> Print -> Output -> Mode -> Separations
Then choose lpi/shape (between 20 and 65 for screen print)
Check one at a time to print

Angles for over printing
15
75
105
155

Although I already used most of the tools within photoshop, it was good to go over it all thinking specifically about screen print, as I haven't had much practise digitally adding colour. One thing which I will bear in mind is about making registration easier (for example if printing with a black, don't have to leave white underneath lines if surrounded by colour)

The bitmap part was really interesting, but it was right at the end so was quite quick, I'm still trying to get my head around it! But I found it actually a lot simpler than I had imagined, I'm really looking forward to our next session on Friday where we will look at bitmap and halftone in more depth.