Origami Triangle or Shawl Folds
This another basic origami fold called the origami triangle fold, also called the shawl or diaper fold. It is really just a valley fold along the diagonal axis of the origami paper.
Origami Triangle or Shawl or Diaper Fold Step 1: Start off with a square origami paper.
Origami Triangle or Shawl or Diaper Fold Step 2: Fold it along the dash line shown, either top to bottom or bottom to top, it doesn't matter. And you have your origami triangle fold. Easy!