For your folding napkins, you have the choice between napkins and cloth napkins disposable paper.
According famillial or more formal invitations, set the table on a nice tablecloth, paper or fabric, with crockery and cutlery so you can match.
You will quickly see that your choice of napkin is important because the size of the napkin should be adapted to fold you want to obtain.
For some folding napkins, towels must be large. For other folds, a smaller size is required.