Creating index tabs on the edges of page is called tabbing or indexing.
Some of the basic terms used for index tabs are:
Bank: One row of tabs in consecutive order. For example, if you order 200 sets of 10 tabs, 1/5 cut, and your titles are the numbers 1through 10, numbers 1-5 will make up the first bank; numbers 6-10 will make up the second bank.
Common Body Copy: Printing that repeats in exactly the same place on the body of each tab (also see Different Body Copy).
Different Body Copy: Printing on the body of the tab that varies from tab sheet to tab sheet (also see Common Body Copy).
Drilling: (1) The number of holes: normally 3-holes, but can be 2 to 7 holes. (2) Spacing of holes: normally 4¼" center to center on 8½" x 11" body size sheets; this changes to 2¾" center to center on 5½" x 8½" body size sheets (3) Diameter of holes: normally 5/16".
Edge Reinforcing: A 9/16" strip of mylar laminated to the back side of the binding edge of the sheet. It is used to strengthen the sheet. Applying edge reinforcing to the tab sheet will minimize the probability a tab will be torn off the rings.
Collating: There are three types of collating:
(1) Straight Sequence: 1,2,3,4,5,1,2,3,4,5 repeating order of tabs.
(2) Reverse Sequence: 5,4,3,2,1,5,4,3,2,1 repeating order of tabs.
(3) Double Reverse Sequence: 5,5,4,4,3,3,2,2,1,1 repeating order of tabs.
Cut: The length of the tab.
Indent: The indent measures the distance from the top of the tab to where the top tab starts, or conversely, the measure from where the bottom tab ends to the bottom of the sheet.
Set: The entire grouping of tabs. In the example above, numbers 1-10 make up the set. The total number of banks make up a set.
Mylar Laminate: A plastic film used to strengthen and provide a variety of colors to the tab extension. It is applied using high temperature and pressure. Ink on the body of the sheet must be completely dry before it can be laminated.
Position: The place where the tab falls in a bank. In our example, the tab title with the number 3 would fall in the third position in the first bank of 5.
Tab: The extended portion of the sheet usually covered with a protective clear or colored laminate (Mylar).
Tab Extension: Length the tab extends out from the body of the sheet. The standard tab extension is 1/2". A standard tab sheet with a body-size 8½" x 11" and a ½" extension will always have an overall size of 9" x 11". Other standard tab extensions are 1/4”, 3/8” and 3/4”. Standard tabs have rounded corners.