Screen Printing Overview - Murakami Screen

Index printing is very similar to sim
process printing. The difference is in the
dots.
Index printing uses a random stochaistic
dot that is uniform and much smaller in
size. Sim Process uses halftones that
have dots from 5% to 95%.
Separations are a snap from Photoshop.
Go to mode/index color, then select
custom color from the drop down menu.
A pallet will appear. These colors can be
modified to allow better secondary color
on screen. Anywhere two similar colors
border each other can be “spread” by
using the contrast tool, level tool, or
curves.
Index does generate odd color
combinations to achieve secondary
colors. It is sometimes necessary to
erase dots that are in the white or very
light areas. In the example shown I
would remover any blue or purple dots
appearing in the light beige basket or
ballons. They appear as confetti in the
final print and look like a pinhole.
Index Printing