The left design was created by folding accordion like folds and binding them to wood with rubber bands. The right was created by tightly wrapping the fabric on a pole using twine/thread, then scrunched.
Indigo Shibori Fabric, Cotton Indigo Fabric
Kumo shibori is a pleated and bound resist. This technique involves pleating sections of the cloth very finely and evenly. Then the cloth is bound in very close sections. The result is a very specific spider-like design