Disclosed is a process of using waste material comprising absorbent material and a thermoplastic material, such as from the manufacture of disposable absorbent articles, to produce useful articles. Since the washing machine can communicate with the dryer according to a wireless communication regulation, the dryer can operate more conveniently. A second masking layer is deposited to at least partially fill spaces of the first pattern. The optical source unit emits light toward the bio material reacting unit.