Apparatus and method for punching cover layers for optical disks and apparatus and method for laminating the cover layers

摘要

Cover layers for protecting recording layers of optical disks respectively are produced by that when the cover layers are punched out in a cover sheet, defects in the cover layers are inspected by an inspection means provided on at least one of upstream and downstream sides of a punching portion where each cover layer is punched out in the fed cover sheet, and defective cover layers detected by the inspection means are separated from non-defective cover layers and collected into a defective product collection portion.