To make the moire effect,you need a textured plastic sheet.
You also need to make a thin stripe sheet.This thin sheet
can be layered over a plain background sheet. Lay this stripe
sheet against the textured plastic sheet to make it one and pass
this thru the pasta machine to number 5 or what ever thickness
you want. I would think that you would need a release on the
plastic sheet before you place it with the stripe sheet.
I always use baby powder. But use whatever you like.
Textured sheets in the forground with a black and white stripe sheet
that has been passed thru the pasta machine with the textured sheet.
You can see the moire effect on some of these pieces.
Different textures will give you different designs.
POLYMER CLAY GUILD
Crush Helix Demo
Using the Wavy Blade
Covering an Altoid box