Perforating is a finishing service that allows your customers to easily remove an insert or a portion of your printed piece. Most often the printed products has a requirement for customers to take a portion of the print, for example school fair scripts uses perforation to separate each ticket.
Heavy paper stock requires scoring before it can be folded cleanly and accurately. Scoring is commonly done on a press cylinder with score tape. The score needs to be simple and is usually done after the image is printed on the previous cylinders. The score tape can cause distortion in the registration. Simple scores for folds can be done on folding equipment, this score is not as accurate as a press score.