Last week, we talked about a single fringe. The fringe was attached to a mesh -- a filet crochet open mesh (dc 1, * sk 2, ch 2, dc 1 * across).
The directions for and pictures of double and triple knot fringes shown here are from the American Thread Company booklet.
The first difference between the single and multi-knot fringes is the length of thread/yarn used. (Because of the knots, one needs to use longer lengths of yarn to get the same length of fringe.) The second difference is that the strands are attached every other mesh opening.
For all of these fringes, the first knot is the cow hitch. Make the hitch every other mesh opening.
Then, take half of the strands from one fringe and half of the strands from the next fringe. Knot them together using an overhand knot. It looks better if the flat part of the knot faces outward. Then, for the double knot fringe, trim the bottom of the fringe to make it even.
(The overhand knot is the simplest kind of knot. The picture in the Wikipedia article shows 2 overhand knots.)
For the triple knot fringe, make a second overhand knot -- again splitting the fringes in half as in the pic. The first and last fringes will be a little different because they are on the edge. Again, trim the fringe to make it even across.